阅读说明：本技术 打入机 (Driving machine ) 是由 大塚和弘 饭岛义光 于 2019-08-02 设计创作，主要内容包括：本发明提供一种打入机,其不需确保驱动器专用的配置空间。打入机(10)具有以能够打击紧固件(73)的方式进行动作的打击部(13)、支撑打击部(13)的外壳(11)、设置于外壳(11)的扳机(14)、设置于外壳(11)的推杆(16)以及扳机阀(51),具备设置于扳机(14)的滑动部件(81)、设置于扳机(14)且使滑动部件(81)进行动作的螺线管(46)。(The invention provides a driving machine, which does not need to ensure a special configuration space for a driver. The driving machine (10) is provided with a striking part (13) which can act in a manner of striking a fastener (73), a shell (11) for supporting the striking part (13), a trigger (14) arranged on the shell (11), a push rod (16) arranged on the shell (11) and a trigger valve (51), and is provided with a sliding component (81) arranged on the trigger (14) and a solenoid (46) arranged on the trigger (14) and used for making the sliding component (81) act.)

1. A driving machine includes:

a striking part capable of striking a fastener;

a housing for supporting the striking part;

an operation member provided in the housing and operated by an operation force of an operator;

a contact member provided on the housing and operable to contact a target material into which the fastener is driven; and

a driving section having a standby state in which the striking section is stopped and an operating state in which the striking section is operated, and switching the standby state and the operating state when a switching member is operated,

the driving machine is characterized in that the driving machine is provided with a driving device,

the disclosed device is provided with:

a transmission mechanism provided to be operable on the operation member and having a transmission state in which an operating force of the operation member and an operating force of the contact member can be transmitted to the switching member and a disconnection state in which the operating force of the operation member and the operating force of the contact member cannot be transmitted to the switching member; and

and an actuator provided to the operating member and configured to switch the transmission mechanism between the transmission state and the cut-off state.

2. A driving machine according to claim 1,

the mode for switching the driving unit from the standby state to the operating state may be selected from a first mode for operating the contact member in a state where the operating member is operated and a second mode for operating the operating member in a state where the contact member is operated,

when the first mode is selected and a predetermined time period elapses from the time when the operation member is operated, the actuator brings the transmission mechanism into the transmission state,

when the first mode is selected and a predetermined time period is exceeded from a time point at which the operation member is operated, the actuator brings the transmission mechanism into the cut-off state.

3. A driving machine according to claim 1 or 2,

the transmission mechanism includes:

a trigger arm provided to be movable with respect to the operation member; and

a sliding member provided on the trigger arm and operating together with the actuator,

the slide member is movable relative to the trigger arm.

4. A driving machine according to any one of claims 1 to 3,

the actuator has a movable member capable of operating and stopping,

when the power supply to the driver is stopped or the power supply is stopped, the movable member is operated or stopped,

when the movable member is operated, the transmission mechanism is operated to switch the transmission state and the cut-off state.

5. A driving machine according to claim 4,

the housing has:

a main body for supporting the striking part; and

a handle connected to the main body and held by a hand when an operator operates the operation member,

the handle is provided with a power supply unit from which power can be supplied to the actuator.

6. A driving machine according to claim 5,

also provided with:

a control unit for supplying or cutting off power to the power supply unit with respect to the driver; and

a container capable of accommodating the power supply unit and the control unit,

the container is attachable to and detachable from the handle.

7. A driving machine according to any one of claims 1 to 6,

also provided with:

a pressure accumulation chamber provided in the housing and configured to store a compressible gas;

a pressure chamber for operating the striking unit when the compressible gas is supplied from the pressure accumulation chamber; and

a path for supplying the compressible gas of the pressure accumulation chamber to the pressure chamber,

the standby state of the driving unit is a state in which the path is cut,

the operating state of the driving unit is a state in which the path is connected.

8. A driving machine according to claim 7,

the driving part is provided with a valve for connecting and cutting off the path,

the valve has the switching member operated by the operating force transmitted from the transmission mechanism,

the transmission mechanism includes a contact portion that can be brought into contact with the switching member and a non-contact portion that is not brought into contact with the switching member.

9. A driving machine according to any one of claims 4 to 6,

the actuator is a key solenoid that operates the movable member when the electric power is supplied and stops the movable member when the supply of the electric power is stopped.

10. A driving machine according to claim 3,

a bracket for movably supporting the transmission mechanism is arranged on the housing,

when the operator releases the operating force to the trigger, the slide member is operated in contact with the holder.

Technical Field

The present invention relates to a driving machine having a striking portion that strikes a fastener by moving in a predetermined direction and a driving portion that moves the striking portion.

Background

A driving machine having a striking part and a driving part is described in patent document 1. The driving machine described in patent document 1 includes a housing, an accumulator chamber, a pressure chamber, a striking portion, a push rod, an air cylinder, a trigger valve, and a delay valve as an actuator. The accumulator chamber is provided in the housing and supplies compressed air to the accumulator chamber.

When the operator uses the driving machine described in patent document 1, the delay valve is connected to a path for supplying the compressed gas of the pressure accumulation chamber to the pressure chamber within a predetermined time from the time when the operator applies the operating force to the trigger. Therefore, when an operation force is applied to the push rod within a predetermined time from the time when the operation force is applied to the trigger, compressed air is supplied to the pressure chamber, and the striking portion is operated in a direction in which the fastener is struck.

On the other hand, if the predetermined time is exceeded from the time when the operating force is applied to the trigger, the delay valve blocks the path for supplying the compressed gas of the pressure accumulation chamber to the pressure chamber. Therefore, even if the operation force is applied to the push rod after the predetermined time is exceeded from the time when the operation force is applied to the trigger, the compressed air is not supplied to the pressure chamber. That is, the striking portion does not operate in a direction of striking the fastener.

Documents of the prior art

Patent document

Patent document 1: international publication No. 2017-115593

Disclosure of Invention

Problems to be solved by the invention

The inventors of the present application have recognized a need to ensure a driver-specific configuration space.

The invention aims to provide a driving machine which does not need to ensure a special configuration space for a driver.

Means for solving the problems

A driving machine according to an embodiment includes a striking unit operable to strike a fastener, a housing supporting the striking unit, an operating member provided in the housing and operable by an operating force of an operator, a contact member provided in the housing and operable to contact a target material to be struck by the fastener, and a driving unit including a standby state in which the striking unit is stopped and an operating state in which the striking unit is operated, and configured to switch between the standby state and the operating state when a switching member is operated, the driving unit including: a transmission mechanism which is provided to the operation member so as to be operable, and which includes a transmission state in which an operation force of the operation member and an operation force of the contact member can be transmitted to the switching member, and a disconnection state in which the operation force of the operation member and the operation force of the contact member cannot be transmitted to the switching member; and an actuator provided to the operation member and switching the transmission mechanism between the transmission state and the switching state.

Effects of the invention

According to the driving machine of one embodiment, it is not necessary to secure a dedicated arrangement space for arranging the driver.

Drawings

Fig. 1 is a front sectional view showing an overall structure of a driver according to an embodiment of the present invention.

Fig. 2(a) is a cross-sectional view showing a trigger and a slide member provided in the driver, and (B) is a side cross-sectional view taken along line II-II of fig. 2 (a).

Fig. 3 is a block diagram showing a control system of the driving machine of fig. 1.

Fig. 4(a), (B), and (C) are cross-sectional views showing the operation of the trigger.

Fig. 5(a) and (B) are cross-sectional views showing the operation of the trigger.

Fig. 6(a) and (B) are sectional views corresponding to the second mode, showing the operation of the trigger.

Fig. 7 is a flowchart including an example of control by the driving machine.

Fig. 8(a), (B) and (C) are cross-sectional views showing the operation of the trigger.

Fig. 9(a) and (B) are cross-sectional views showing the operation of the trigger.

Fig. 10(a), (B) and (C) are cross-sectional views showing the operation of the trigger.

Fig. 11(a) and (B) are cross-sectional views showing the operation of the trigger.

Fig. 12(a), (B) and (C) are cross-sectional views showing the operation of the trigger.

Fig. 13(a) and (B) are cross-sectional views showing the operation of the trigger.

Fig. 14 is a flowchart including another control example by the driving machine.

Fig. 15(a) is a vertical sectional view showing another example of the power supply unit provided in the driver, and (B) is a side sectional view taken along line III-III in fig. (a).

Detailed Description

Next, several driving machines included in the embodiments of the present invention will be described with reference to the drawings.

The driver 10 shown in fig. 1 and 2 includes a housing 11, an air cylinder 12, a striking portion 13, a trigger 14, an injection portion 15, and a push rod 16. Further, the magazine 17 is attached to the driver 10. The housing 11 includes a cylindrical main body 18, a head cover 21 fixed to the main body 18, and a handle 19 connected to the main body 18.

The pressure accumulation chamber 20 is formed throughout the interior of the handle 19, the interior of the main body 18, and the interior of the head cap 21. In the handle 19, an end cap 22 is fixed on the end located opposite to the main body 18. The plug 23 is mounted to the end shield 22. The air tube is connected to the plug 23. Compressed air as a compressible gas is supplied to the accumulator chamber 20 through an air pipe. The cylinder 12 is disposed within the body 18. The hood 21 has an exhaust passage 24. The exhaust passage 24 is connected to the outside B1 of the housing 11.

The head valve 31 is provided in the head cap 21. The head valve 31 is movable toward the center line a1 of the cylinder 12. A control chamber 27 is formed in the head cap 21. The urging member 28 is provided in the control chamber 27. The urging member 28 is a metal compression spring as an example. The urging member 28 urges the head valve 31 in a direction approaching the cylinder 12 in the direction of the center line a 1. The limiter 29 is provided in the hood 21. In the cylinder 12, a valve seat 32 is mounted at an end portion closest to the position of the head valve 31 in the direction of the center line a 1.

The striking unit 13 includes a piston 34 and a driving blade 35 fixed to the piston 34. A piston 34 is disposed within the cylinder 12. The striking part 13 can be moved and stopped in the direction of the center line a 1. A seal member 30 is attached to the outer peripheral surface of the piston 34. A piston upper chamber 36 is formed between the limiter 29 and the piston 34. A passage 110 is formed between the head valve 31 and the valve seat 32.

When the head valve 31 is separated from the valve seat 32, the passage 110 is opened, and the accumulator chamber 20 is connected to the piston upper chamber 36. When the head valve 31 is pushed to the valve seat 32, the passage 110 is closed, and the accumulation chamber 20 is shut off from the piston upper chamber 36. The piston upper chamber 36 is connected to the outside B1 of the housing 11 through the exhaust passage 24.

The injection portion 15 is fixed to the main body 18 at an end opposite to the position where the hood 21 is provided in the direction of the center line a 1. The injection section 15 has an injection passage 72. The center line a1 is located in the injection passage 72, and the drive vane 35 is movable in the injection passage 72 in the direction of the center line a 1.

The damper 37 is provided in the cylinder 12. The damper 37 is disposed in the cylinder 12 at a position closest to the injection portion 15 in the direction of the center line a 1. The damper 37 has a shaft hole 38, and the driving blade 35 is movable in the shaft hole 38 in the direction of the center line a 1. A piston lower chamber 39 is formed between the piston 34 and the damper 37 in the cylinder 12.

A trigger valve 51 is provided at the connection position of the body 18 and the handle 19. The trigger valve 51 has a plunger 52, a valve body 55, passages 56, 90, and a biasing member 69. The plunger 52 may move in the direction of the centerline a2 and stop. Centerline A1 is parallel to centerline A2. The passage 56 is connected to the control chamber 27 through a passage 57. The passage 90 is connected to the exterior B1 of the housing 11. The urging member 69 is a compression spring, for example, and the urging member 69 urges in the direction of the center line a2 in the direction of separating the plunger 52 from the pressure accumulation chamber 20.

The magazine 17 is supported by the ejection portion 15 and the handle 19. Magazine 17 receives fasteners 73. The magazine 17 has a feeder 74, and the feeder 74 feeds the fastener 73 in the magazine 17 to the injection path 72.

As shown in fig. 1, the plunger 16 is attached to the injection section 15. The push rod 16 is movable in the direction of the center line a1 with respect to the ejection portion 15 and the housing 11. As shown in fig. 2, the bracket 48 is provided to the main body 18, and the transmission member 75 is supported by the bracket 48. The transmission member 75 is movable in the direction of the center line a 2. The urging member 76 is provided between the bracket 48 and the transmission member 75. The urging member 76 is a metal spring, for example. The urging member 76 urges in the direction of the center line a2 in a direction to separate the transmission member 75 from the trigger valve 51.

As shown in fig. 4(a), the mode selection member 84 is attached to the housing 11. The mode selection member 84 is movable within a range of a predetermined angle with respect to the housing 11. The operator operates the mode selection member 84 to rotate and stop. The mode selection member 84 is, for example, a lever or a knob. The operator selects either the first mode or the second mode as the mode for using the driver 10. Before using the driver 10, the operator stops the mode selection member 84 at a position corresponding to the first mode or a position corresponding to the second mode.

The mode in which the operator operates the striking unit 13 in the order of pushing the pusher 16 to the target material 77 with the operator applying an operating force to the trigger 14 is the first mode. The mode in which the striking unit 13 is operated in the order in which the operator applies the operation force to the trigger 14 in a state in which the operator pushes the push rod 16 to the target material 77 is the second mode.

The trigger 14 is mounted to the mode selection member 84 via the support shaft 40. The support shaft 40 is disposed at a position eccentric from the rotation center of the mode selection member 84. When the operator rotates the mode selection member 84, the support shaft 40 moves in a direction intersecting the center line a 2. In addition, the trigger 14 can rotate within a range of a predetermined angle with the support shaft 40 as a center. A biasing member 41 is provided, and the biasing member 41 biases the trigger 14 clockwise in fig. 4 (a). The urging member 41 is a metal spring, for example.

The trigger arm 42 is mounted relative to the trigger 14 by a support shaft 43. The trigger arm 42 is movable within a range of a predetermined angle with respect to the trigger 14 with the support shaft 43 as a center. A force application member 44 is provided on the trigger 14. The biasing member 44 biases the trigger arm 42 in a counterclockwise direction relative to the trigger 14. The urging member 44 is a metal spring, for example. A portion of the trigger 14 and a portion of the trigger arm 42 are disposed between the trigger valve 51 and the carriage 48 in the direction of the centerline a 2. The power switch 45 shown in fig. 3 is mounted to the trigger arm 42.

(specific example of driver and slide Member 1)

The solenoid 46 is mounted to the trigger arm 42. The solenoid 46 shown in fig. 4(a) is specific example 1 of the driver. The plunger 52 is disposed between the solenoid 46 and the body 18 in a direction intersecting the center line a 2. The solenoid 46 has a coil and a plunger 47. The plunger 47 can approach or move away from the plunger 52. The plunger 47 is made of a magnetic material, for example, iron. When a current flows through the coil of the solenoid 46, the coil generates a magnetic attraction force. The coil applies a force to the plunger 47 in a direction away from the plunger 52 by a magnetic attraction force. The coil applies a force to the plunger 4 in the right direction in fig. 4 (a).

The urging member 80 is provided on the outer periphery of the plunger 47. The urging member 80 urges the plunger 47 in a direction approaching the plunger 52. The urging member 80 urges the plunger 47 in the left direction in fig. 4 (a). The urging member 80 is a metal spring, for example. Here, the operating force applied to the plunger 47 by the magnetic attraction force of the coil is larger than the operating force applied to the plunger 47 from the urging member 80.

The slide member 81 is fixed to the plunger 47. The slide member 81 has a contact portion 83 and a notch 82. The slide member 81 is guided by the trigger arm 42 and moves or stops integrally with the plunger 47. The solenoid 46 and the slide member 81 are disposed in the disposition region of the trigger 14 in a plane perpendicular to the support shaft 40.

As shown in fig. 1, 2(a) and 2(B), the power supply unit 106 is attached to the handle 19 as an example of the housing 11. A recess 85 is provided in the outer surface of the handle 19 between the trigger valve 51 and the end cap 22. Recess 85 is provided in handle 19 near cartridge 17 in the direction of centerline a 2. The power supply unit 106 is disposed in the recess 85.

The power supply unit 106 includes a container 86 and a battery unit 87. The container 86 is made of an insulating material, for example, a synthetic resin. The container 86 is accessible relative to the recess 85. The battery unit 87 is housed in the container 86. The battery unit 87 has a cylindrical shape, and a plurality of battery units 87 are arranged in the radial direction. The battery unit 87 is a rechargeable battery that can be charged and discharged, and the battery unit 87 can use any one of a lithium battery, a nickel hydrogen battery, a lithium polymer battery, and a nickel cadmium battery. The battery unit may also be a disposable battery. The power supply unit 106 also has a power supply cable 109 for supplying power to the solenoid 46.

The grip 88 covers the handle 19 and the outside of the power supply portion 106. The grip 88 is made of synthetic rubber, for example, and has a cylindrical shape. When the grip 88 covers the outer surfaces of the handle 19 and the power supply portion 106, the power supply portion 106 does not fall off from the recess 85. When the operator removes the grip 88 from the handle 19, the power supply unit 106 can be taken out of and put into the recess 85.

A protrusion 89 is provided on the outer surface of the container 86. When the power switch 45 contacts the projection 89, the power switch 45 is turned on. When the power switch 45 is separated from the protrusion 89, the power switch 45 is turned off.

Fig. 3 is a block diagram showing a control system of the driving machine 10. The control unit 91 and the connection wire 107 are provided in the container 86. The wires 107 are electrically connected to the plurality of battery cells 87, respectively. The control unit 91 is a microcomputer having an input interface, an output interface, a calculation processing device, a memory, and a timer. A circuit 92 is provided between the control unit 91 and the power supply unit 106.

The power switch 45 is turned on to connect the circuit 92. The power switch 45 is turned off to interrupt the circuit 92. When the power switch 45 is turned on, the electric power of the power supply unit 106 is supplied to the control unit 91, and the control unit 91 is started. When the power switch 45 is turned off, the power of the power supply unit 106 is not supplied to the control unit 91, and the control unit 91 is stopped. The push switch 93 is provided in the injection section 15.

When the operator pushes the push rod 16 to the target material 77, the transmission member 75 provided in the push rod 16 approaches the trigger valve 51. When the operator separates the pusher 16 from the target material 77, the transmission member 75 is disengaged from the trigger valve 51. The circuit 94 is provided between the power supply portion 106 and the solenoid 46. An electromagnetic switch 95 is provided to connect and disconnect the circuit 94.

The control unit 91 turns on and off the electromagnetic switch 95. The electromagnetic switch 95 is turned on to connect the circuit 94. The opening of the electromagnetic switch 95 is to cut off the electric circuit 94. A voltage detection sensor 62 that detects the voltage of the power supply unit 106 is provided. The signal of the voltage detection sensor 62 is input to the control unit 91.

Next, an example of use of the driver 10 will be described with reference to the flowchart of fig. 7.

(example of the worker selecting the first mode)

When the operator operates the mode selection member 84 to stop the mode selection member 84 at a position corresponding to the first mode, the trigger 14 is closest to the main body 18 in a direction intersecting the center line a2, as shown in fig. 4 (a). In addition, the trigger arm 42 is closest to the support shaft 40 in a direction intersecting the center line a 2.

If the operator releases the operating force with respect to the trigger 14 and disengages the push rod 16 from the target material 77, the initial state of the driver 10 in step S10 of fig. 7 is assumed. The trigger 14 contacts the carriage 48 and the trigger 14 and trigger arm 42, respectively, stop in the initial position. The pusher 16 also stops at the initial position, and the pusher switch 93 is turned off. If the trigger 14 stops at the initial position, the power switch 45 is turned off. Therefore, the power of the power supply unit 106 is not supplied to the control unit 91, and the control unit 91 is stopped.

The electromagnetic switch 95 is turned off, and the power of the power supply unit 106 is not supplied to the solenoid 46. Therefore, the plunger 47 is stopped at the initial position, and the slide member 81 is stopped at the initial position. The initial position of the plunger 47 is the position closest to the plunger 52. The initial position of the slide member 81 is a position where the slide member 81 is closest to the power transmission member 75 in the moving direction of the slide member 81. That is, the plunger 47 is stopped at a position closest to the power transmission member 75 by the force of the urging member 80.

In addition, the trigger valve 51 is stopped in a standby state. In the standby state of the trigger valve 51, the pressure accumulation chamber 20 is connected to the passage 56, and compressed air is supplied to the control chamber 27. Thus, the output valve 31 is pushed to the valve seat 32. Therefore, the pressure accumulation chamber 20 and the piston upper chamber 36 are cut off, and the striking part 13 stops at the initial position shown in fig. 1, that is, the top dead center.

When the operator applies an operating force to the trigger 14, the trigger 14 moves counterclockwise in fig. 4(a), and the power switch 45 is turned on as shown in fig. 4(B), and the trigger 14 stops at the operating position. When the power supply 45 is turned on in step S11, the electric power of the power supply unit 106 is supplied to the control unit 91, and the control unit 91 starts. The control unit 91 starts the timer and turns on the electromagnetic switch 95. The power of the power supply unit 106 is supplied to the solenoid 46 through the power supply cable 109, and the coil generates a magnetic attraction force.

The slide member 81 moves from the initial position shown in fig. 4(B) to the operation position shown in fig. 4(C), and stops. The operating position of the slide member 81 is a position at which the slide member 81 is farthest from the transmission member 75 in the operating direction of the slide member 81.

In step S13, the control unit 91 determines whether or not the pusher switch 93 is on within a predetermined time from the start of the timer. The predetermined time is, for example, 3 seconds. If control unit 91 determines yes in step S13, control unit 91 resets the timer and turns off electromagnetic switch 95 in step S14. Therefore, the power of the power supply unit 106 is not supplied to the solenoid 46.

Further, the operating force of the push rod 16 is transmitted to the trigger arm 42 through the transmission member 75. The trigger arm 42 moves clockwise about the support shaft 43 in fig. 4(a), and turns off the power switch 45 as shown in fig. 5 (a). In step S14, when power switch 45 is turned off, the power of power supply unit 106 is not supplied to control unit 91, and control unit 91 stops.

When the trigger arm 42 moves clockwise, the contact portion 83 of the slide member 81 is pushed up to the plunger 52 of the trigger valve 51 as shown in fig. 5 (a). Then, the trigger valve 51 is switched from the standby state to the operating state. When the trigger valve 51 is in an operating state, the pressure accumulation chamber 20 and the passage 56 are shut off, and the passage 56 and the passage 90 are connected. Therefore, the compressible gas in the control chamber 27 is discharged to the outside B1 through the passage 56. The head valve 31 is separated from the valve seat 32, and the pressure accumulation chamber 20 is connected to the piston upper chamber 36. As a result, the compressible gas in the pressure accumulation chamber 20 is supplied to the piston upper chamber 36, and the striking portion 13 moves from the top dead center to the bottom dead center, and the blade 35 is driven to strike the fastener 73. Fastener 73 is driven into target material 77 in step S14.

In addition, in a state where the operator pushes the push rod 16 to the target material 77, as shown in fig. 5(a), the transmission member 75 is pushed to the plunger 52. Therefore, in a state where the electric power of the power supply unit 106 is not supplied to the solenoid 46, the sliding member 81 is stopped at the operating position by the frictional force at the contact position between the sliding member 81 and the plunger 52.

When the operator keeps applying the operating force to the trigger 14 and separates the push rod 16 from the target material 77, the push rod switch 93 is turned off in step S15. Further, the transmission member 75 returns to the initial position from the operation position and stops. The trigger arm 42 is operated counterclockwise by the force of the urging member 44 and stopped, and the power switch 45 is turned on in step S15.

When the power switch 45 is turned on in step S15, the electric power of the power supply unit 106 is supplied to the control unit 91, and the control unit 91 starts. Further, in step S15, the control unit 91 starts the timer and turns on the electromagnetic switch 95. Therefore, the electric power of the power supply unit 106 is supplied to the solenoid 46, and the slide member 81 is moved from the initial position to the operating position and stopped. The trigger valve 51 returns from the operating state to the standby state in step S15. After step S15, control unit 91 proceeds to step S12.

On the other hand, if the control unit 91 determines no in step S13, it turns off the electromagnetic switch 95 and resets the timer in step S16. Therefore, the electric power of the power supply unit 106 is not supplied to the solenoid 46, and the solenoid 46 returns to the initial position and stops. That is, the plunger 47 is operated by the force of the urging member 80, and the plunger 47 is stopped at a position closest to the transmission member 75. The slide member 81 returns from the operation position shown in fig. 4(C) to the initial position shown in fig. 4(B) together with the plunger 47 and stops.

Here, when the pusher 16 comes into contact with a foreign object other than the target material 77 and the transmission member 75 is operated, and the trigger arm 42 is operated clockwise in fig. 4(B), the plunger 52 enters the notch 82 as shown in fig. 5 (B). Therefore, the operating force of the trigger arm 42 is not transmitted to the trigger valve 51, and the trigger valve 51 is kept in a standby state.

In this way, even if the push rod 16 comes into contact with a foreign object at a time exceeding a predetermined time from the time when the operating force is applied to the trigger 14, the trigger valve 51 is maintained in the standby state, and the striking unit 13 is stopped at the top dead center. Therefore, the fastener 73 can be prevented from being driven into foreign matter.

Control unit 91 determines whether or not power switch 45 is off in step S17 after step S16. If the control unit 91 determines no in step S17, it repeats the determination in step S17. If the control unit 91 determines yes in step S17, the process proceeds to step S10.

The slide member 81 of the driving machine 10 according to the present embodiment transmits the operating force transmitted from the push rod 16 to the trigger arm 42 to the plunger 52 of the trigger valve 51. A solenoid 46 for operating and stopping the slide member 81 is provided in the trigger 14. Therefore, a space for disposing the solenoid 46 does not need to be specially provided.

(specific example of driver and slide Member 2)

In order to operate and stop the slide member 81, a solenoid 60 is provided instead of the solenoid 46. The solenoid 60 is specific example 2 of the driver, and the solenoid 60 includes a coil and a plunger 47. When current is supplied to the solenoid, an attraction force is generated, but the plunger 47 and the slide member 81 cannot be operated against the force of the urging member 80. That is, the solenoid 60 is an electromagnet. The plunger 52 is disposed between the solenoid 60 and the body 18 in a direction intersecting the center line a 2.

When the solenoid 60 is provided, the plunger 47 and the slide member 81 are stopped at the initial position even if power is supplied to the solenoid 60 in step S11 of fig. 7. In step S12, the operator manually moves the plunger 47 and the slide member 81 from the initial position to the operating position. Then, the solenoid 60 holds the plunger 47 and the slide member 81 at the operating position.

Then, in step S15, even if power is supplied to the solenoid 60, the plunger 47 and the slide member 81 stop at the initial position. Then, in step S15, the operator manually moves the plunger 47 and the slide member 81 from the initial position to the operating position. Then, the solenoid 60 holds the plunger 47 and the slide member 81 at the operating position, and the process proceeds to step S12. The control other than the case of using the solenoid 60 is the same as the other control corresponding to the flowchart of fig. 7.

(specific example of driver and slide Member 3)

In order to operate and stop the slide member 81, a key solenoid 61 is provided instead of the solenoid 46. The key solenoid 61 is specific example 3 of the driver, and the key solenoid 61 has a coil and a permanent magnet. In this case, the urging member 80 is not provided. The electromagnetic switch 95 can be turned on or off, and also can switch the direction of the current supplied to the key solenoid 61. When power is supplied from the power supply unit 106 to the key solenoid 61, the plunger 47 operates.

When the direction of the current supplied to the key solenoid 61 is switched, the direction in which the plunger 47 operates is switched. When the supply of electric power from the power supply unit 106 to the key solenoid 61 is stopped, the plunger 47 is stopped at the initial position or the operating position by the attraction force of the permanent magnet. The plunger 52 is disposed between the keying solenoid 61 and the main body 18 in a direction intersecting with respect to the center line a 2.

An example of control in the case of using the key solenoid 61 will be described with reference to the flowchart of fig. 7. In step S10, no power is supplied to the key solenoid 61, and the plunger 47 is stopped at the initial position. At step S11, the control unit 91 turns on the electromagnetic switch 95 and supplies power to the key solenoid 61. The direction of the current supplied to the key solenoid 61 is the direction in which the slide member 81 is moved from the initial position to the operation position in step S12. In step S12, the control unit 91 stops the supply of power to the key solenoid 61 and stops the slide member 81 at the operating position.

If the control unit 91 determines yes in step S13, the process proceeds to step S15 through step S14, and power is supplied to the key solenoid 61. Therefore, the slide member 81 returns from the operation position to the initial position. The controller 91 proceeds from step S15 to step S12 and supplies and stops electric power to the key solenoid 61. Therefore, the slide member 81 moves from the initial position to the operating position and stops at the operating position.

If the controller 91 determines no in step S13, the controller 91 supplies and stops the power to the key solenoid 61 in step S16. Therefore, the slide member 81 moves from the operating position to the initial position and stops at the initial position. The control other than the case of using the key solenoid 61 is the same as the control other than the flowchart corresponding to fig. 7.

(example of operator selecting second mode)

First, an example of providing the solenoid 46 is explained. When the operator stops the mode selection member 84 at a position corresponding to the second mode, the trigger 14 and the trigger arm 42 stop at a position farthest from the main body 18 in a direction intersecting the center line a2, as shown in fig. 6 (a). In an initial state in which the operator releases the operating force on the trigger 14 and disengages the pusher 16 from the target material 77, the power switch 45 is turned off and the electromagnetic switch 95 is turned off. The solenoid 46 is not supplied with power, and the slide member 81 is stopped at the initial position. In the standby state, the trigger valve 51 is stopped, and the compressed air in the pressure accumulation chamber 20 is not supplied to the piston upper chamber 36. Therefore, the striking part 13 stops at the initial position, i.e., the top dead center.

When the operator pushes the push rod 16 against the target material 77 without applying an operation force to the trigger 14, the transmission member 75 operates. The operating force of the transmission member 75 is not transmitted to the plunger 52. When an operation force is applied to the trigger 14 in a state where the operator pushes the push rod 16 to the target material 77, the trigger 14 operates counterclockwise in fig. 6 (a). Then, the trigger 14 reaches the operating position and stops, but the power switch 45 remains off.

Further, the trigger arm 42 is operated counterclockwise, and as shown in fig. 6(B), the contact portion 83 of the slide member 81 is pushed up to the plunger 52. Therefore, the trigger valve 51 is switched from the standby state to the operating state, and the striking unit 13 operates from the top dead center to the bottom dead center. When the operator separates the pusher 16 from the target material 77 and releases the operating force on the trigger 14, the trigger valve 51 is switched from the operating state to the standby state. Further, the trigger 14 returns from the operating state to the initial state shown in fig. 6(a) and stops.

When the operator selects the second mode and applies an operating force to the trigger 14 in a state where the operator separates the push rod 16 from the target material 77, the trigger 14 operates in the counterclockwise direction and stops at the operating position. However, the power switch 45 remains off. Further, the trigger arm 42 is entirely stopped outside the operation range of the transmission member 75. Therefore, even if the push rod 16 is pushed to the target material 77 in a state where the operator applies the operating force to the trigger 14, the operating force of the transmission member 75 is not transmitted to the trigger arm 42. That is, the trigger valve 51 is kept in a standby state, and the striking unit 13 is stopped at the top dead center.

Further, when the solenoid 60 is provided instead of the solenoid 46, the power of the power supply unit 106 is not supplied to the solenoid 60, and the slide member 81 is stopped at the initial position. In addition, when the key solenoid 60 is provided in place of the solenoid 46, the power of the power supply unit 106 is not supplied to the key solenoid 61, and the slide member 81 is stopped at the initial position.

(specific example of driver and slide Member 4)

The solenoid 46 shown in fig. 8(a) is specific example 4 of the driver. Of the elements shown in fig. 8(a), the same elements as those shown in fig. 2 are denoted by the same reference numerals as those in fig. 2. The solenoid 46 is disposed between the plunger 52 and the body 18 in a direction intersecting a center line a2 in fig. 8 (a). When a current is supplied to the coil of the solenoid 46, the plunger 47 approaches the plunger 52. That is, the solenoid 46 applies force to the plunger 47 in the left direction in fig. 8 (a). The urging member 80 urges the plunger 47 to be separated from the plunger 52. That is, the urging member 80 urges the plunger 47 in the right direction in fig. 8 (a).

When the operator selects the first mode, releases the operating force on the trigger 14, and separates the push rod 16 shown in fig. 1 from the target material 77, the trigger 14, the trigger arm 42, and the trigger valve 51 are in the initial state shown in fig. 8 (a). That is, the power switch 45 is turned off and the push switch 93 is turned off.

When the operator selects the first mode, releases the operating force on the trigger 14, and separates the pusher 16 from the target material 77, the power switch 45 is turned on as shown in fig. 8 (B). Further, a current is supplied to the solenoid 46, and the slide member 81 moves from the initial position to the operating position and stops. Then, the pusher switch 93 is turned off.

When the operator selects the first mode and the push rod 16 is pushed to the target material 77 within a predetermined time from the time when the operating force is applied to the trigger 14, the transmission member 75 moves to the operating position and stops as shown in fig. 8 (C). The operating force of the transmission member 75 is transmitted to the plunger 52 through the trigger arm 42 and the slide member 81, and the trigger valve 51 is switched from the standby state to the operating state. Therefore, the striking unit 13 shown in fig. 1 operates from the top dead center to the bottom dead center.

On the other hand, when the operator selects the first mode and the predetermined time is exceeded in a state where the push rod 16 is separated from the target material 77 from the time point when the operating force is applied to the trigger 14, the supply of the current to the solenoid 46 is stopped, and the slide member 81 moves from the operating position to the initial position shown in fig. 9(a) and stops at the initial position.

Therefore, when the operator selects the first mode and after a predetermined time has elapsed from the time when the operating force is applied to the trigger 14 in a state where the material 77 to be pushed by the pusher 16 is separated, the pusher 16 comes into contact with a foreign object and the transmission member 75 operates, as shown in fig. 9(B), the plunger 52 enters the notch 82 of the slide member 81. Therefore, the trigger valve 51 is kept in a standby state, and the striking part 13 is stopped at the top dead center.

The arrangement of the solenoid 46 and the slide member 81 shown in fig. 8(a) in the driver 10 shown in fig. 1 corresponds to the control example shown in fig. 7. In addition, a solenoid 60 or a key solenoid 61 may be provided instead of the solenoid 46 shown in fig. 8 (a). When a solenoid 60 or a key solenoid 61 is provided instead of the solenoid 46 shown in fig. 8(a), this corresponds to the control example shown in fig. 7.

When the solenoid 46 shown in fig. 8(a) or the solenoid 60 or the key solenoid 61 is provided, if the operator selects the second mode, the operation and control of the driver 10 including the solenoid 46 shown in fig. 2 are the same as those in the case where the operator selects the second mode, except that the operation directions of the plunger 47 and the slide member 81 are reversed.

(specific example of driver and slide Member 5)

An example of a mechanism other than the mechanism for operating the slide member 81 is shown in fig. 10 (a). The support shaft 40 shown in fig. 10(a) is attached to the housing 11. The mode selection section 84 shown in fig. 2 is not provided in fig. 10 (a). In fig. 10(a), the same components as those in fig. 2 and 4(a) are denoted by the same reference numerals as those in fig. 2 and 4 (a). The trigger 14 is mounted to the housing 11 by a support shaft 40. Mode select element 84 is not set.

The solenoid 104 is mounted to the trigger arm 42. The solenoid 104 has a coil and a plunger 47. The urging member 105 is attached to the plunger 47. The urging member 105 urges the plunger 47 in a direction away from the plunger 52, i.e., in the right direction in fig. 10 (a). The urging member 105 is made of metal, for example. The plunger 47 is fixed with a slide member 81, and when the plunger 47 is operated, the slide member 81 is operated with respect to the trigger arm 42.

When the current supply to the solenoid 104 is stopped, the plunger 47 is stopped at the initial position farthest from the plunger 52 by the urging force of the urging member 105. When a current is supplied to the solenoid 104, the plunger 47 moves in a direction approaching the plunger 52 against the biasing force of the biasing member 105, i.e., in the left direction in fig. 10(a), and the plunger 47 stops at the operating position. When the current supply to the solenoid 104 is stopped in a state where the plunger 47 is stopped at the operating position, the plunger 47 is operated in a direction away from the plunger 52 by the biasing force of the biasing member 105, and the plunger 47 is stopped at the initial position.

The driver 10 with solenoid 104 may be controlled by the control system of fig. 3. When the control unit 91 turns on the electromagnetic switch 95, a current is supplied to the solenoid 104. When the control unit 91 turns off the electromagnetic switch 95, the current supply to the solenoid 104 is stopped.

(example of the worker selecting the first mode)

The state in which the operator releases the operating force on the trigger 14 and the operator separates the push rod 16 from the target material 77 is the initial state of the driver 10 shown in fig. 10 (a). The power switch 45 is turned off. Therefore, the power of the power supply unit 106 is not supplied to the control unit 91, and the control unit 91 is stopped.

The electric power of the power supply unit 106 is not supplied to the solenoid 104, and the plunger 47 is stopped at the initial position. Further, the trigger valve 51 is stopped in the standby state. Thus, the striking part 13 stops at the top dead center shown in fig. 1.

As shown in fig. 10(B), when the operator applies an operating force to the trigger 14 and stops the trigger 14, the power switch 45 is turned on. When the power switch 45 is turned on, the control unit 91 starts, and the control unit 91 starts the timer. Further, the electric power of the power supply unit 106 is supplied to the solenoid 104, and the plunger 47 operates from the initial position and stops at the operating position shown in fig. 10 (B). The slide member 81 moves from the initial position to the operating position together with the plunger 47 and stops. The tip of the slide member 81 stopped at the operating position is located within the operating range of the transmission member 75.

When the operator pushes the pusher 16 to the target material 77 within a predetermined time after the controller 91 starts the timer, the transmission member 75 is pushed to the slide member 81 as shown in fig. 10 (C). Therefore, the trigger arm 42 is moved clockwise with respect to the trigger 14, and the moving force of the trigger arm 42 is transmitted to the plunger 52 through the slide member 81. Therefore, the trigger valve 51 is switched from the standby state to the operating state. The striking unit 13 shown in fig. 1 operates from the top dead center to the bottom dead center.

Then, as shown in fig. 10(C), the power switch 45 is turned off, the controller 91 resets the timer, the controller 91 stops, and the current supply to the solenoid 104 is stopped.

Here, the slide member 81 is pushed onto the plunger 52. Therefore, the current supply to the solenoid 104 is stopped, and the sliding member 81 is stopped at the operating position by the frictional force at the contact position between the sliding member 81 and the plunger 52.

When the operator keeps applying the operating force to the trigger 14 and separates the pusher 16 from the target material 77, the pusher switch 93 is turned off. Further, the transmission member 75 returns to the initial position from the operation position and stops. The trigger valve 51 returns from the operating state to the standby state, and the striking unit 13 returns from the bottom dead center to the top dead center and stops. The plunger 47 and the slide member 81 return to the initial positions from the operating positions and stop. Then, the trigger arm 42 is operated counterclockwise and stopped, and the power switch 45 is turned on.

When the power switch 45 is turned on, the control unit 91 starts and starts the timer. In addition, an electric current is supplied to the solenoid 104. Therefore, the plunger 47 and the slide member 81 move from the initial position to the operating position and stop.

When the control unit 91 exceeds a predetermined time after the timer is started, the control unit 91 stops the supply of the current to the solenoid 104. Therefore, the plunger 47 moves rightward in fig. 10(B) and stops at the initial position shown in fig. 11 (a). The entirety of the slide member 81 and the entirety of the trigger arm 42 are located outside the range of motion of the transmission member 75.

Here, even if the pusher 16 comes into contact with a foreign object other than the target material 77 and the transmission member 75 operates, as shown in fig. 11(B), the transmission member 75 does not come into contact with any of the slide member 81 and the trigger arm 42. That is, the operating force of the transmission member 75 is not transmitted to the trigger valve 51, and the trigger valve 51 is held in a standby state. In this way, the driver 10 having the solenoid 104 of fig. 10(a) can perform the control shown in fig. 7.

(example of operator selecting second mode)

When the driver 10 is in the initial state shown in fig. 10(a), the driver pushes the push rod 16 against the target material 77 without applying an operation force to the trigger 14, and the transmission member 75 operates. Further, the push switch 93 is turned on. The operating force of the transmission member 75 is transmitted to the trigger arm 42, the trigger arm 42 is operated in the clockwise direction, and the operating force of the trigger arm 42 is not transmitted to the plunger 52.

When the operator applies an operating force to the trigger 14 in a state where the push rod 16 is pressed against the target material 77, the trigger 14 is operated in the counterclockwise direction and the trigger 14 is stopped. Then, the power switch 45 is turned on, and the control unit 91 is started. At the time when the control unit 91 is activated, the push switch 93 is turned on, and therefore the control unit 91 does not supply current to the solenoid 104. Therefore, the slide member 81 stops at the initial position.

The trigger arm 42 moves in the clockwise direction together with the trigger 14, and the slide member 81 is pressed against the plunger 52. At this time, the trigger arm 42 rotates about the support shaft 43, and the tip 110 of the slide member 81 is positioned within the operating range of the transmission member 75. Therefore, the state in which the slide member 81 is engaged with the transmission member 75 is maintained.

Therefore, the trigger valve 51 is switched from the standby state to the operating state, and the striking unit 13 operates from the top dead center to the bottom dead center. When the operator separates the plunger 16 from the target material 77 and releases the operating force applied to the trigger 14, the trigger valve 51 is switched from the operating state to the standby state. Further, the trigger 14 is returned from the operating state to the initial state and stopped.

(specific example of driver and slide Member 6)

An example other than the solenoid and the slide member will be described with reference to fig. 12 (a). In the structure shown in fig. 12(a), the same structures as those shown in fig. 2(a) and 4(a) are denoted by the same reference numerals as those in fig. 2(a) and 4 (a).

The solenoid 60 is mounted to the trigger arm 42. In addition, the slide member 81 has a projection 108. The driving machine 10 having the configuration of fig. 12(a) has a control system shown in fig. 3.

(example of the worker selecting the first mode)

An example in which the operator selects the first mode is described with reference to the flowchart of fig. 14. The operator operates the mode selector 84 to stop the mode selector 84 at a position corresponding to the first mode. The state in which the operator releases the operating force on the trigger 14 and separates the push rod 16 from the target material 77 is the initial state of the driver 10 in step S20. The protrusion 108 engages with the holder 48 to stop the slide member 81. The slide member 81 stops against the force of the urging member 80. Also, the power switch 45 is turned off. Therefore, the control unit 91 stops and the power supply to the solenoid 60 stops.

In addition, the trigger valve 51 is stopped in a standby state. Therefore, the pressure accumulation chamber 20 and the piston upper chamber 36 are cut off, and the striking part 13 is stopped at the initial position shown in fig. 1, that is, the top dead center. At this time, the protrusion 108 of the slide member 81 may get over the front end 111 of the holder 48. In this case, the slide member 81 is set to the initial position so that the protruding portion 108 is located on the side of the distal end 111 shown in fig. 12 (a).

Therefore, when the operator applies an operating force to the trigger 14, the trigger 14 moves counterclockwise in fig. 12(a), the power switch 45 is turned on, and the trigger 14 stops at the operating position. In step S21, when power switch 45 is turned on, control unit 91 starts. Further, since the protrusion 108 is released from the holder 48, the slide member 81 is operated by the force of the urging member 80, and the slide member 81 is stopped at the initial position shown in fig. 12 (B).

When the operator temporarily releases the operating force applied to the trigger 14 in step S22, the trigger 14 moves clockwise in fig. 12(B), and the power switch 45 is turned off. When the protrusion 108 is engaged with the bracket 48, the slide member 81 moves from the initial position to the operating position against the force of the biasing member 80, and the slide member 81 stops at the operating position. In step S22, the control unit 91 supplies power to the solenoid 60 for a predetermined time period after the operating force to the trigger 14 is released and the power switch 45 is turned off, so that the solenoid 60 maintains the suction force for a predetermined time period.

When the operator applies an operating force to the trigger 14 in step S23, the projection 81 is released from the holder 48. The solenoid 60 holds the slide member 81 in the operating position. When the trigger 14 is operated, the power switch 45 is turned on as shown in fig. 12 (C). Therefore, the control unit 91 starts, and the control unit 91 starts the timer in step S23.

In step S24, the control unit 91 determines whether or not the plunger switch 93 is on within a predetermined time from the time when the timer is started. If control unit 91 determines yes in step S24, control unit 91 resets the timer in step S25. Further, the operating force of the push rod 16 is transmitted to the trigger arm 42 through the transmission member 75. The trigger arm 42 moves clockwise in fig. 12(C), and the power switch 45 is turned off in step S25. When the power switch 45 is turned off, the control unit 91 stops.

When the trigger arm 42 is moved clockwise, the contact portion 83 of the slide member 81 is pressed against the plunger 52 of the trigger valve 51 as shown in fig. 13 (a). Then, the trigger valve 51 is switched from the standby state to the operating state. Therefore, the striking unit 13 moves from the top dead center to the bottom dead center.

When the push rod 16 is separated from the target material 77 while the operator applies the operating force to the trigger 14, the push rod switch 93 is turned off in step S26. Further, the transmission member 75 returns to the initial position from the operation position and stops. The trigger arm 42 is operated in the counterclockwise direction and stopped at the operation position, and the power switch 45 is turned on in step S26. When the power switch 45 is turned on, the control unit 91 starts. In step S26, control unit 91 starts a timer and proceeds to step S24.

On the other hand, if the controller 91 determines no in step S24, it stops the power supply to the solenoid 60 in step S27. Then, the slide member 81 is moved from the operation position shown in fig. 12(C) by the force of the urging member 80, and the slide member 81 is stopped at the initial position shown in fig. 12 (B).

When the push rod 16 comes into contact with a foreign object other than the target material 77 in a state where the operating force is applied to the trigger 14 and the slide member 81 is stopped at the initial position, the transmission member 75 operates, and the trigger arm 42 operates clockwise in fig. 12 (B). Then, the plunger 52 enters the notch 82 as shown in fig. 13 (B). Therefore, the operating force of the trigger arm 42 is not transmitted to the trigger valve 51, and the trigger valve 51 is kept in a standby state.

In this way, even if the push rod comes into contact with a foreign object at a time exceeding a predetermined time from the time when the operating force is applied to the trigger 14, the trigger valve 51 is maintained in the standby state, and the striking unit 13 is stopped at the top dead center. Therefore, the fastener 73 can be prevented from being driven into foreign matter.

In step S28 after step S27, control unit 91 determines whether or not power supply 45 is off. If the control unit 91 determines no in step S28, it repeats the determination in step S28. If the control unit 91 determines yes in step S28, the process proceeds to step S23.

(example of operator selecting second mode)

In the driver 10 having the mechanism of fig. 12(a), when the second mode is selected by the operation mode selection member 84, the driver 10 is in the following state. The trigger 14 and trigger arm 42 stop at a position furthest from the body 18 in a cross-wise direction relative to the centerline a 2. The tab 108 is spaced from the bracket 48.

In an initial state in which the operator releases the operating force on the trigger 14 and separates the plunger 16 from the target material 77, the power switch 45 is turned off and no power is supplied to the solenoid 46. The slide member 81 is urged by the urging force of the urging member 80, and the slide member 81 stops at the initial position. In the standby state, the trigger valve 51 is stopped, and the compressed air in the pressure accumulation chamber 20 is not supplied to the piston upper chamber 36. Therefore, the striking part 13 stops at the initial position, i.e., the top dead center. When the operator pushes the push rod 16 to the target material 77 without applying an operation force to the trigger 14, the transmission member 75 operates. The operating force of the transmission member 75 is transmitted to the trigger arm 42, and the trigger arm 42 is operated in the clockwise direction, but the operating force of the trigger arm 42 is not transmitted to the plunger 52.

When an operation force is applied to the trigger 14 in a state where the operator pushes the push rod 16 to the target material 77, the trigger 14 operates in the counterclockwise direction. Then, the trigger 14 reaches the operating position and stops, but the power switch 45 remains off. Further, the trigger arm 42 moves counterclockwise, and the contact portion 83 of the slide member 81 is pushed to the plunger 52. Therefore, the trigger valve 51 is switched from the standby state to the operating state, and the striking unit 13 operates from the top dead center to the bottom dead center.

When the operator separates the plunger 16 from the target material 77 and releases the operating force applied to the trigger 14, the trigger valve 51 is switched from the operating state to the standby state. Further, the trigger 14 is returned from the operating state to the initial state and stopped.

When the operator selects the second mode and the operator moves the push rod 16 away from the target material 77 and applies an operating force to the trigger 14, the trigger 14 moves in the counterclockwise direction and stops at the operating position. However, the power switch 45 remains off. In addition, the entire trigger arm 42 stops outside the range of motion of the transmission member 75. Therefore, even if the pusher 16 is pushed to the target material 77 in a state where the operator applies the operating force to the trigger 14, the operating force of the transmission member 75 is not transmitted to the trigger arm 42. That is, the trigger valve 51 is kept in a standby state, and the striking unit 13 is stopped at the top dead center.

As described above, when the operator selects the second mode, the protrusion 108 is separated from the holder 48 and the power switch 45 is turned off even when the operator applies an operation force to the trigger 14 or when the operator releases the operation force to the trigger 14. Therefore, the slide member 81 always stops at the initial position.

When the driving machine 10 having the mechanism of fig. 12(a) is switched from the state in which the operating force is applied to the trigger 14 to the state in which the operating force applied to the trigger 14 is released, the protrusion 108 engages with the holder 48, and the slide member 81 and the plunger 47 operate against the force of the biasing member 80, and the slide member 81 and the plunger 47 stop at the operating position. Therefore, the operator can operate the slide member 81 without applying an operation force to the slide member 81, and the operability of the driver 10 is improved.

(other examples of Power supply section)

Fig. 15(a) and 15(B) show other examples of the power supply unit 106. The end cover 22 is provided with a holding hole 100, and the power supply portion 106 is provided in the interior of the handle 19, i.e., the accumulator chamber 20. The power supply unit 106 includes a container 101 and a battery unit 87. The container 101 is cylindrical, and the container 101 is disposed in both the holding hole 100 and the pressure accumulation chamber 20. The lid 102 closes the opening of the container 101. A portion of the cover 102 is disposed at the outer portion B1.

The battery unit 87 and the control unit 91 are disposed in the container 101. The battery unit 87 has a cylindrical shape, and the plurality of battery units 87 are arranged concentrically. A spring 103 is disposed between the lid 102 and one battery cell 87 in the container 101. The spring 103 electrically connects the terminal of the battery cell 87 and the terminal of the battery cell 87. The operator can remove the lid 102 from the container 101 and insert and remove the battery unit 87 into and from the container 101.

An example of technical significance of the case described in the embodiment is as follows. The trigger 14 is an example of an operation member, and the push rod 16 is an example of a contact member. The trigger arm 42 and the slide member 81 are an example of the transmission mechanism. Solenoids 46, 60, and 104 are examples of actuators, and plunger 47 is an example of a movable member. The trigger valve 51 is an example of a driving unit and a valve. The plunger 52 is an example of a switching member. The key solenoid 61 is an example of a driver. The via 110 is an example of a path. The state in which the slide member 81 is pushed to the plunger 52 is the transmission state. The state where the slide member 81 is separated from the plunger 52 or the state where the plunger 52 enters the notch 82 is the cut-off state. The cutout 82 is a non-contact portion. The piston upper chamber 36 is an example of a pressure chamber.

The driving machine is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, the power switch may be a structure that switches on and off by the operation of the mode switching section. The power switch is configured to be turned on when the first mode is selected and turned off when the second mode is selected. The power supply part and the control part can be arranged in the storage bin. The actuator provided to the operating member may be an air cylinder instead of the solenoid. The cylinder is operated by the compressible gas in the accumulator chamber.

Description of the symbols

10-driving machine, 13-striking part, 11-housing, 14-trigger, 16-push rod, 18-body, 19-handle, 20-accumulator chamber, 36-piston upper chamber, 42-trigger arm, 46, 60, 104-solenoid, 47, 52-plunger, 48-bracket, 51-trigger valve, 61-key solenoid, 81-sliding part, 86, 101-container, 91-control part, 106-power part, 110-channel.