阅读说明：本技术 绿篱修剪机 (Hedge trimmer ) 是由 铃木雅浩 于 2020-09-29 设计创作，主要内容包括：本发明涉及绿篱修剪机。提供一种能够进一步抑制从一对刀片向前把手传递的振动的技术。绿篱修剪机包括：主体壳；刀片,其从主体壳的前部向前方延伸；原动机,其收纳在主体壳,驱动刀片；前手柄,其设在主体壳的前方,具备安装有刀片的把手支承部和连接于把手支承部的前把手；以及后手柄,其连接于主体壳的后部并且具备后把手。在把手支承部和刀片之间设有第1隔振构件。(The present invention relates to hedge trimmers. Provided is a technique capable of further suppressing vibration transmitted from a pair of blades to a front handle. The hedge trimmer comprises: a main body case; a blade extending forward from a front portion of the main body case; a prime mover housed in the main body case and driving the blade; a front handle provided in front of the main body case, and including a handle support portion to which the blade is attached and a front handle connected to the handle support portion; and a rear handle connected to a rear portion of the main body case and having a rear grip. A1 st vibration isolation member is provided between the handle support portion and the blade.)

1. A hedge trimmer in which, in use,

the hedge trimmer comprises:

a main body case;

a blade extending forward from a front portion of the body shell;

a prime mover housed in the body case and driving the blade;

a front handle provided in front of the body case, and including a handle support portion to which the blade is attached and a front handle connected to the handle support portion; and

a rear handle connected to a rear portion of the main body case and having a rear grip,

a1 st vibration isolation member is provided between the handle support portion and the blade.

2. A hedge trimmer according to claim 1 wherein,

the handle supporting part is connected to the front part of the main body shell,

a 2 nd vibration isolating member is provided between the main body case and the handle support portion.

3. A hedge trimmer according to claim 1 or 2 wherein,

the front handle is integrally formed with the handle support portion.

4. A hedge trimmer according to any one of claims 1 to 3 wherein,

the prime mover is an electrically driven motor.

5. A hedge trimmer according to any one of claims 1 to 4 wherein,

the prime mover is a motor driven by electric power,

the hedge trimmer further includes a battery that is attachable and detachable by sliding with respect to the main body case in a state where the hedge trimmer is mounted on the mounting surface,

in a state where the hedge trimmer is mounted on the mounting surface, a sliding direction in which the battery slides with respect to the main body case forms an angle of 45 degrees or more in an upward direction with respect to a longitudinal axis of the blade.

6. A hedge trimmer according to claim 5 wherein,

the sliding direction is substantially orthogonal to the lengthwise axis of the blade.

7. A hedge trimmer according to claim 5 or 6 wherein,

the battery is mounted between the main body case and the rear handle,

a gap is provided between the rear handle and the battery.

8. A hedge trimmer according to any one of claims 5 to 7 wherein,

the center of gravity of the hedge trimmer in a state where the battery is attached to the main body case is located rearward of the front handle and forward of the rear handle.

9. A hedge trimmer in which, in use,

the hedge trimmer comprises:

a main body case;

a blade extending forward from a front portion of the body shell;

a motor housed in the main body case and driving the blade;

a front handle connected to the main body case;

a rear handle connected to the main body case at a position rearward of the front handle; and

a battery which can be attached to and detached from the main body case by sliding with respect to the main body case in a state where the hedge trimmer is mounted on a mounting surface,

in a state where the hedge trimmer is mounted on the mounting surface, a sliding direction in which the battery slides with respect to the main body case forms an angle of 45 degrees or more in an upward direction with respect to a longitudinal axis of the blade.

10. A hedge trimmer according to claim 9 wherein,

the sliding direction is substantially orthogonal to the lengthwise axis of the blade.

11. A hedge trimmer according to claim 9 or 10 wherein,

the battery is mounted between the main body case and the rear handle,

a gap is provided between the rear handle and the battery.

12. A hedge trimmer according to any one of claims 9 to 11 wherein,

the center of gravity of the hedge trimmer in a state where the battery is attached to the main body case is located rearward of the front handle and forward of the rear handle.

Technical Field

The present disclosure relates to a hedge trimmer.

Background

Patent document 1 discloses a hedge trimmer including: a main body case; a blade extending forward from a front portion of the main body case; a prime mover housed in the main body case and driving the blade; a front handle provided in front of the main body case, and including a handle support portion to which the blade is attached and a front handle connected to the handle support portion; and a rear handle having a rear grip connected to the rear portion of the housing. In this hedge trimmer, the handle support portion is constituted by a left support portion to which the blade is attached and a right support portion to which the front handle is connected. Further, a vibration damping member is provided between the left and right support portions.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 2001-16989

Disclosure of Invention

Problems to be solved by the invention

In the hedge trimmer of patent document 1, the vibration damping member provided between the left support portion and the right support portion suppresses the transmission of the vibration when the blade is driven from the left support portion to the right support portion, that is, to the front handle. However, at the connecting portion between the left and right support portions, vibration energy is transmitted from the left support portion to the right support portion. When vibration is transmitted from the left side support portion to the right side support portion, the vibration is also transmitted to the front handle connected to the right side support portion.

The present specification provides a technique capable of further suppressing vibration transmitted from a pair of blades to a front handle.

Means for solving the problems

In the hedge trimmer disclosed in the present specification, it may be such that it includes: a main body case; a blade extending forward from a front portion of the body shell; a prime mover housed in the body case and driving the blade; a front handle provided in front of the body case, and including a handle support portion to which the blade is attached and a front handle connected to the handle support portion; and a rear handle connected to a rear portion of the main body case and including a rear grip, wherein a 1 st vibration isolation member is provided between the grip support portion and the blade.

According to the above configuration, the vibration generated when the blade is driven is absorbed by the 1 st vibration isolation member provided between the handle support portion and the blade. Therefore, the vibration generated when the blade is driven can be prevented from being transmitted to the handle support portion. Therefore, the vibration transmitted from the handle support portion to the front handle can be further suppressed.

Drawings

Fig. 1 is a perspective view of the hedge trimmer 2 of the present embodiment viewed from the front and right upper side.

Fig. 2 is a perspective view of the hedge trimmer 2 of the present embodiment viewed from the front right direction.

Fig. 3 is an exploded view of the blade unit 12 of the present embodiment.

Fig. 4 is a sectional view of the main body case 50 of the present embodiment.

Fig. 5 is a sectional view of the front handle 52 of the present embodiment.

Fig. 6 is a right side view of the hedge trimmer 2 of the present embodiment mounted on the mounting surface P as viewed from the right.

Fig. 7 is a plan view of the hedge trimmer 2 of the present embodiment as viewed from above.

Description of the reference numerals

2: hedge trimmer, 10: a main body, 12: blade unit, 14: debris reservoir, 20: blade, 22: upper blade, 22 a: blade edge, 23: long hole, 24: lower blade, 24 a: blade edge, 25: long hole, 26: guide plate, 28: guide bar, 30: guard, 30 a: guard member, 32: guide member, 50: body case, 52: front handle, 54: rear handle, 60: motor case, 60 a: right motor case, 60 b: left motor case, 62: crank case, 62 a: upper crank case, 62 b: lower crank case, 80: motor case, 80: motor, 82: output shaft, 84: controller, 86: battery mounting section, 100: crank-cam, 102: upper link, 104: lower link, 106 a: bolt, 106 b: bolt, 120: handle support portion, 122: upper support case, 122 a: front part, 124: lower support case, 124 a: front part, 126: front handle, 126 a: upper handle case, 126 b: lower handle case, 128: 1 st trigger lever, 129: switching mechanism, 129: switch, 130 a: vibration isolation rubber, 130 b: vibration isolation rubber, 132 a: bolt, 132 b: bolts, 134: bolt, 136 a: vibration isolation rubber, 136 b: vibration isolation rubber, 140: rear handle connection portion, 142: rear handle portion, 150: 1 st extension, 150 a: rear end, 152: extension 2, 160: rear handle, 162: operation unit, 170: 2 nd trigger lever, 172: drive rod, 180: power button, 182: bite release button, 184: power supply lamp, 186: speed display unit, B: battery, G: the center of gravity.

Detailed Description

In one or more embodiments, a handle support portion may be connected to a front portion of the main body case, and a 2 nd vibration damping member may be provided between the main body case and the handle support portion.

Since the blade is attached to the main body case, vibration when the blade is driven is also transmitted to the main body case. Further, the vibration transmitted from the blade to the main body case is transmitted to the handle support portion connected to the front portion of the main body case. According to the above configuration, the vibration transmitted from the blade to the main body case can be suppressed from being transmitted to the handle support portion by the 2 nd vibration isolation member provided between the main body case and the handle support portion.

In one or more embodiments, the front handle may be integrally formed with the handle support portion.

According to the above configuration, the front handle can be easily formed as compared with a case where the front handle and the handle support portion are independent from each other. Further, the number of parts of the hedge trimmer can be reduced.

In one or more embodiments, the prime mover may be a motor driven by electric power.

In one or more embodiments, when the motor is an engine, the vibration caused by the driving of the engine is large, and therefore, the vibration caused by the driving of the blade does not have a great influence on the vibration transmitted to the front handle. On the other hand, when the motor is a motor, since the vibration caused by the driving of the motor is small, the vibration transmitted to the front handle when the vibration caused by the blade is generated has a large influence. According to the above configuration, the transmission of vibration to the front handle due to the driving of the blade can be suppressed.

In another hedge trimmer disclosed in the present specification, it may be that it includes: a main body case; a blade extending forward from a front portion of the body shell; a motor housed in the main body case and driving the blade; a front handle connected to the main body case; a rear handle connected to the main body case at a position rearward of the front handle; and a battery that is attachable to and detachable from the main body case by sliding with respect to the main body case in a state where the hedge trimmer is mounted on the mounting surface. In a state where the hedge trimmer is mounted on the mounting surface, a sliding direction in which the battery slides with respect to the main body case may be at an angle of 45 degrees or more in an upward direction with respect to a longitudinal axis of the blade.

In the hedge trimmer described above, the battery can be attached to and detached from the hedge trimmer while the hedge trimmer is mounted on the ground. In this case, since it is not necessary to support the hedge trimmer by hand, the battery pack can be easily attached and detached. According to the above configuration, the battery can be attached and detached from above. Therefore, the battery can be attached and detached more easily than in the case where the battery is attached and detached from the side, for example. Therefore, the user can easily attach and detach the battery.

In one or more embodiments, the sliding direction may be substantially orthogonal to the longitudinal axis of the blade.

According to the above configuration, the battery can be attached and detached from and from the main body case. Therefore, the battery can be easily attached and detached. Therefore, the user can attach and detach the battery more easily.

In one or more embodiments, the battery may be mounted between the body case and the rear handle. A gap may be provided between the rear handle and the battery.

According to the above configuration, the user can push up the bottom surface of the battery in a state of being attached to the main body case by inserting a finger into the gap between the rear handle and the battery. Thus, the user can easily detach the battery from the main body case.

The center of gravity of the hedge trimmer in a state where the battery is attached to the main body case may be located rearward of the front handle and forward of the rear handle.

The user operates the hedge trimmer with the front handle held by the right hand and the rear handle held by the left hand, for example. When the center of gravity of the hedge trimmer is located on the front side of the front handle, the front portion of the hedge trimmer is likely to be inclined downward in a state where the user holds the hedge trimmer, and operability is poor. According to the above configuration, the user can easily suppress the inclination of the hedge trimmer in the front-rear direction in a state where the user holds the hedge trimmer. Therefore, the operability of the hedge trimmer can be improved.

(examples)

The hedge trimmer 2 of the embodiment is explained with reference to the drawings. The hedge trimmer 2 is an electric tool for gardening and is applied to hedge trimming and the like. As shown in fig. 1, the hedge trimmer 2 comprises a main body 10, a blade unit 12 mounted to the main body 10, and a debris storage 14 mounted to the blade unit 12. The debris reservoir 14 is a tray-like member for receiving the branches and leaves cut by the blade unit 12. The debris storage 14 is not particularly limited and is formed of a resin material. In the following description, the longitudinal direction of the blade unit 12 is referred to as the front-rear direction, the vertical direction in fig. 6 is referred to as the vertical direction, and the direction perpendicular to the front-rear direction and the vertical direction is referred to as the horizontal direction.

(Structure of blade unit 12)

The blade unit 12 linearly extends from the main body 10 toward the front. As shown in fig. 3, the blade unit 12 has a pair of blades 20 including an upper blade 22 and a lower blade 24, a guide plate 26, a guide bar 28, and a guard 30. As shown in fig. 5, the guide plate 26 and the guide bar 28 are fixed to a crank case 62 of the main body 10 described later. The pair of blades 20 are supported by guide bars 28. The guide plate 26 is disposed between the guide bar 28 and the upper blade 22.

The upper blade 22 has a plurality of cutting edges 22a in the front-rear direction. The plurality of cutting edges 22a are provided only on the left side of the upper blade 22. That is, the upper blade 22 is a single-edged blade. The upper blade 22 is provided with a plurality of elongated holes 23. The plurality of long holes 23 are arranged in the front-rear direction and the longitudinal direction of each long hole 23 extends in the front-rear direction. Further, each of the elongated holes 23 penetrates the upper blade 22 in the vertical direction. A guide member 32 is inserted into each of the elongated holes 23 to guide the reciprocating motion of the upper blade 22. The length of the guide member 32 in the left-right direction substantially matches the length of the long hole 23 in the left-right direction. An upper connecting rod 102 is connected to the rear portion of the upper blade 22. The upper connecting rod 102 is connected to the crank-cam 100. The crank cam 100 and the upper connecting rod 102 will be described in detail later.

The lower blade 24 has a plurality of cutting edges 24a in the front-rear direction. The plurality of cutting edges 24a are provided only on the left side of the lower insert 24. That is, the lower blade 24 is also a single-edged blade. The lower blade 24 is also provided with a plurality of elongated holes 25. The plurality of elongated holes 25 are also arranged in the front-rear direction, and the longitudinal direction of each elongated hole 25 extends in the front-rear direction. Further, each of the elongated holes 25 penetrates the lower blade 24 in the vertical direction. Further, a guide member 32 is inserted into each of the elongated holes 25 so as to guide the reciprocating motion of the lower blade 24. The length of the guide member 32 in the left-right direction substantially matches the length of the elongated hole 25 in the left-right direction. A lower link 104 is connected to the rear of the lower blade 24. The lower connecting rod 104 is also connected to the crank-cam 100. The lower link 104 will be described later in detail.

A guard 30 is provided on the guide bar 28. The guard 30 is used to prevent a relatively large object from contacting the plurality of cutting edges 22a of the upper blade 22 and the plurality of cutting edges 24a of the lower blade 24. The guard 30 is provided with a plurality of guard members 30a along the front-rear direction. The left end of the guard member 30a is positioned to the left of the left ends of the plurality of cutting edges 22a of the upper blade 22 and the left ends of the plurality of cutting edges 24a of the lower blade 24. This prevents a relatively large object from entering between the two guard members 30a arranged in the front-rear direction and coming into contact with the plurality of cutting edges 22a, 24 a.

(Structure of the body 10)

As shown in fig. 1, the main body 10 includes a main body case 50, a front handle 52, and a rear handle 54.

The body case 50 includes a motor case 60 and a crank case 62. As shown in fig. 2, the crank case 62 is coupled to a lower portion of the motor case 60. The motor case 60 is composed of a right-side motor case 60a on the right side and a left-side motor case 60b on the left side. As shown in fig. 4, the motor case 60 houses a motor 80 and a controller 84. The motor 80 is, for example, a brushless DC motor. A battery mounting portion 86 is provided at the rear of the motor case 60. As shown in fig. 6, the battery B can be mounted on the battery mounting portion 86 by sliding the battery B in the lower direction with respect to the battery mounting portion 86, and the battery B mounted on the battery mounting portion 86 can be removed from the battery mounting portion 86 by sliding the battery B in the upper direction. As shown in fig. 4, the rear end of the battery B is located on the rear side of the rear end of the motor case 60. Therefore, the user can push up the bottom surface of the battery B in the state of being attached to the motor case 60. Thus, the user can easily detach the battery B from the battery mounting portion 86. The controller 84 controls the operation of the motor 80 by controlling the electric power supplied from the battery B to the motor 80. The controller 84 is disposed forward of the motor 80.

As shown in fig. 2, the crank case 62 is composed of an upper crank case 62a on the upper side and a lower crank case 62b on the lower side. As shown in fig. 4, the crank case 62 houses a crank cam 100, an upper connecting rod 102, and a lower connecting rod 104. The crank-cam 100 is connected to the output shaft 82 of the motor 80. As shown in fig. 5, the upper blade 22, the lower blade 24, the guide plate 26, and the guide bar 28 of the blade unit 12 are attached to the upper crank case 62a by bolts 106a and 106 b. In addition, the guard 30 in the blade unit 12 is not mounted to the upper crank housing 62 a. As described above, the upper connecting rod 102 is connected to the crank cam 100 and the upper blade 22, and the lower connecting rod 104 is connected to the crank cam 100 and the lower blade 24. When the motor 80 is driven to rotate, the crank cam 100 rotates. When the crank-cam 100 rotates, the upper blade 22 is reciprocated in the front-rear direction by the upper connecting rod 102, and the lower blade 24 is reciprocated in the front-rear direction by the lower connecting rod 104. In the present embodiment, the upper blade 22 and the lower blade 24 are configured to reciprocate in opposite phases. In the modification, only one of the upper blade 22 and the lower blade 24 may be configured to reciprocate.

As shown in fig. 1, the front handle 52 includes a handle support portion 120 and a front handle 126. The handle support portion 120 is composed of an upper support case 122 on the upper side and a lower support case 124 on the lower side. The front portion 122a of the upper support case 122 has a semicircular shape protruding upward when viewed from the right. The upper support case 122 is provided with an upper handle case 126a, the upper handle case 126a extending rightward from the right side surface of the front portion 122a of the upper support case 122 and having a semicircular shape in cross section. Further, a lower handle case 126b is formed at the lower support case 124, the lower handle case 126b extending rightward from the right side surface of the front portion 124a of the lower support case 124 and having a semicircular shape in cross section. The front grip 126 is constituted by an upper grip case 126a and a lower grip case 126 b. In the present embodiment, the upper support case 122 and the upper handle case 126a are integrally formed, and the lower support case 124 and the lower handle case 126b are integrally formed. The front handle 126 is provided with a 1 st trigger lever 128. The 1 st trigger lever 128 is connected to a switch mechanism 129 housed in the handle support portion 120 of fig. 5. The switch mechanism 129 is connected to the controller 84 by signal wiring (not shown) passing through the inside of the handle support portion 120 and the inside of the motor case 60. Since the front handle 52 is connected to the motor case 60, a path through the signal wiring in the handle support portion 120 and in the motor case 60 can be secured. When the user grips the front grip 126 and pushes up the 1 st trigger lever 128, a signal indicating that the front grip 126 is gripped is transmitted from the switch mechanism 129 to the controller 84. On the other hand, when the 1 st trigger lever 128 is not pushed up, the signal indicating that the front grip 126 is gripped is not transmitted from the switch mechanism 129 to the controller 84. That is, the switch mechanism 129 is a switch for detecting a state where the front handle 126 is gripped.

As shown in fig. 5, the blade unit 12 is attached to a lower portion of the front handle 52 (specifically, the lower support case 124). The guide plate 26, the guide bar 28, and the guard 30 of the blade unit 12 are mounted to the lower portion of the front portion of the lower support case 124 by two bolts 132a, 132b, a sleeve 133a having an internal thread formed on an inner side surface thereof corresponding to the external thread of the bolts 132a, 132b, and a washer 133 b. Vibration isolation rubbers 130a and 130b are provided between the upper bolt 132a (specifically, the washer 133b) and the lower support case 124 and between the lower support case 124 and the blade unit 12 in the vertical direction, respectively. As shown in fig. 2, the bolt 132b is located forward of the front handle 126. Further, the bolt 132b is provided in the range in which the plurality of cutting edges 24a are provided in the lower insert 24 in the front-rear direction. In the modification, the bolt 132b may be provided in the rear direction in the range where the plurality of cutting edges 24a are not provided in the lower insert 24, that is, in the rear side of the lower insert 24. That is, the guide plate 26, the guide bar 28, and the guard 30 of the blade unit 12 may be attached to the lower support case 124 in a range where the plurality of cutting edges 24a are not provided in the lower blade 24 in the front-rear direction.

As shown in fig. 5, the blade unit 12 is coupled to a lower portion of the rear portion of the lower support case 124 via a crank case 62. As described above, the blade unit 12 is attached to the upper crank case 62a by the bolts 106a and 106 b. The upper crank case 62a and the lower support case 124 are fixed to each other by a bolt 134, a cylindrical sleeve 135a having no internal thread on the inner side surface, and a washer 135 b. Vibration isolation rubbers 136a and 136b are provided between the bolt 134 (specifically, the washer 135b) and the lower support case 124 and between the lower support case 124 and the upper crank case 62a in the vertical direction, respectively. Further, vibration isolation rubbers 136a and 136b are provided outside the sleeve 135 a.

As shown in fig. 1 and 2, the rear handle 54 includes a rear handle connecting portion 140 and a rear handle portion 142.

The rear handle attachment portion 140 is attached to a lower portion of the motor housing 60. The rear handle connecting portion 140 includes a 1 st extending portion 150 extending rearward on the right side surface side of the motor case 60 in parallel with the longitudinal axis a (see fig. 7) of the blade unit 12, and a 2 nd extending portion 152 extending rearward and upward from a rear end 150a of the 1 st extending portion 150. As shown in fig. 6, rear end 150a of 1 st extension 150 is located rearward of the rear end of battery B. As shown in fig. 7, a rear handle portion 142 is connected to a rear portion of the 2 nd extension portion 152. In the left-right direction, a gap L1 is provided between the 1 st extending portion 150 and the battery B.

The rear grip portion 142 extends leftward from a rear portion of a left side surface of the 2 nd extending portion 152. Rear grip portion 142 is provided at a position rearward of the rear end of battery B. A gap L2 is provided between the rear handle portion 142 and the battery B in the front-rear direction. The gap L2 is of sufficient size to allow the user's hand to pass through.

As shown in fig. 1, the rear handle portion 142 includes a rear handle 160 and an operating portion 162. The rear handle 160 is provided with a 2 nd trigger lever 170 and a driving lever 172. When the drive lever 172 is pushed up by the fingers of the hand gripping the rear handle 160 in a state where the user grips the front handle 126 to push up the 1 st trigger lever 128 and grips the rear handle 160 to press down the 2 nd trigger lever 170, power is supplied from the battery B to the motor 80, and the motor 80 drives the pair of blades 20. On the other hand, in a state where the user does not grip the front grip 126, that is, in a state where the 1 st trigger lever 128 is not pushed up, even if the user grips the rear grip 160, presses down the 2 nd trigger lever 170, and pushes up the drive lever 172 with the fingers of the hand gripping the rear grip 160, no electric power is supplied from the battery B to the motor 80. That is, the motor 80 is not driven and the pair of blades 20 are not driven. In a state where the user grips the front grip 126 and pushes up the 1 st trigger lever 128 but does not grip the rear grip 160 (i.e., does not press down the 2 nd trigger lever 170), the drive lever 172 is pushed up without supplying power from the battery B to the motor 80. Thus, a situation in which the pair of blades 20 are driven in a state in which the user does not hold the front handle 126 and the rear handle 160 can be prevented.

The operation unit 162 is provided with a power button 180, a bite release button 182, a power lamp 184, and a speed display unit 186. The right side of the surface of the operation portion 162 on which the power button 180 and the bite release button 182 are provided is inclined downward. The power button 180 and the bite release button 182 are provided within a range that can be reached by the thumb of the hand that holds the rear grip 160 while the user holds the rear grip 160. Therefore, the user can operate the power button 180 and the bite release button 182 while holding the rear grip 160.

The power button 180 is a button for switching on/off of the power of the hedge trimmer 2, and is also a button for switching the rotation speed of the motor 80. The controller 84 is activated when the user presses the power button 180 for a long time and the controller 84 is deactivated when the user presses the power button 180 for a long time again. The power lamp 184 lights up during the startup period of the controller 84. During the start-up period of the controller 84, the target rotational speed of the motor 80 is switched when the user presses the power button 180 for a short time. In the present embodiment, the motor 80 is configured to be operable at 3 stages of "high speed", "medium speed", and "low speed". Each time the power button 180 is operated, the target rotational speed of the motor 80 is changed in the order of low speed, medium speed, high speed, and low speed …. The speed display unit 186 displays the target rotation speed of the motor 80 currently set. The speed display unit 186 also functions as a display unit for making the user aware of the stop of the motor 80 due to the temperature of the battery B becoming high, the stop of the motor 80 due to the low amount of electricity in the battery B, and the like.

The bite release button 182 is a button used when branches and the like are bitten between the cutting edge 22a of the upper blade 22 and the cutting edge 24a of the lower blade 24. When the bite release button 182 is operated, the motor 80 is rotated reversely by a predetermined number of revolutions (e.g., 1/4 revolutions). When the cutting edge 22a of the upper blade 22 and the cutting edge 24a of the lower blade 24 approach each other, branches and the like may bite between the upper blade 22 and the lower blade 24. When the bite release button 182 is operated to rotate the motor 80 in the reverse direction in a state where branches and the like are bitten between the cutting edge 22a of the upper blade 22 and the cutting edge 24a of the lower blade 24, the pair of blades 20 are operated so as to separate the cutting edge 22a of the upper blade 22 and the cutting edge 24a of the lower blade 24 from each other. This makes it possible to remove branches and the like which have caught between the cutting edge 22a of the upper blade 22 and the cutting edge 24a of the lower blade 24.

As shown in fig. 7, in the hedge trimmer 2 of the present embodiment, a battery B as a counterweight is mounted on a battery mounting portion 86 at the rear of the motor case 60. With this configuration, the center of gravity G of the hedge trimmer 2 with the battery B attached is located rearward of the front handle 126 and forward of the rear handle 160. Further, a pair of blades having different lengths of blade tip portions can be attached to the hedge trimmer 2. In the present embodiment, a pair of blades having a tip part with a length of 500 mm to 750 mm is assumed to be attached. The hedge trimmer 2 of the present embodiment is designed such that the center of gravity G of the hedge trimmer 2 is positioned rearward of the front handle 126 and forward of the rear handle 160 even if a pair of blades having a blade tip portion of a length of 500[ mm ] to 750[ mm ] are attached.

In one or more embodiments, as shown in fig. 1 to 5, the hedge trimmer 2 includes: a main body case 50; a pair of blades 20 extending forward from the front of the main body case 50; a motor 80 housed in the main body case 50 and driving the pair of blades 20; a front handle 52 provided in front of the main body case 50, and including a handle support portion 120 to which the pair of blades 20 are attached and a front handle 126 connected to the handle support portion 120; and a rear handle 54 connected to a rear portion of the main body case 50 and provided with a rear grip 160. As shown in fig. 5, vibration isolation rubbers 130a and 130b are provided between the handle support portion 120 and the pair of blades 20. According to the above configuration, the vibration generated when the pair of blades 20 are driven is absorbed by the vibration isolation rubbers 130a and 130b provided between the handle support portion 120 and the pair of blades 20. Therefore, it is possible to suppress the transmission of the vibration generated when the pair of blades 20 are driven to the handle support portion 120. Therefore, the vibration transmitted from the handle support portion 120 to the front handle 126 can be further suppressed.

In one or more embodiments, as shown in fig. 4 and 5, the handle support portion 120 is connected to the front portion of the main body case 50, and the vibration isolation rubbers 136a and 136b are provided between the main body case 50 and the handle support portion 120. According to the above configuration, the vibration isolation rubbers 136a and 136b provided between the main body case 50 and the handle support portion 120 can suppress the transmission of the vibration transmitted from the pair of blades 20 to the main body case 50 to the handle support portion 120.

In one or more embodiments, the front handle 126 may be formed on the handle support portion 120. According to the above configuration, the front grip 52 can be easily formed as compared with the case where the front grip 126 and the grip support portion 120 are independent from each other. Further, the number of components of the hedge trimmer 2 can be reduced.

In one or more embodiments, the pair of blades 20 are driven by a motor 80. According to the above configuration, the vibration of the pair of blades 20 caused by the driving of the motor can be made smaller as compared with the case where the pair of blades 20 are driven by the engine. Therefore, vibration transmitted from the main body case 50 to the handle support portion 120 can be suppressed.

In one or more embodiments, as shown in fig. 1 to 7, the hedge trimmer 2 includes: a main body case 50; a pair of blades 20 extending forward from the front of the main body case; a motor 80 housed in the main body case 50 and driving the pair of blades 20; a front handle 126 connected to the main body case 50; a rear handle connecting portion 140 connected to the main body case 50 at a position rearward of the front handle; and a battery B that can be attached to and detached from the main body case 50 by sliding with respect to the main body case 50 in a state where the hedge trimmer 2 is placed on the placement surface P. As shown in fig. 6, in a state where the hedge trimmer 2 is placed on the placement surface P, the sliding direction in which the battery B slides with respect to the main body case 50 is orthogonal to the longitudinal axis a of the pair of blades 20. With the above configuration, the battery B can be attached and detached from above. Therefore, the battery B can be attached and detached more easily than in the case where the battery B is attached and detached from the side, for example. Therefore, the user can easily attach and detach the battery B.

In one or more embodiments, as shown in fig. 7, a battery B is mounted between the body case 50 and the rear handle 160, with a gap L2 provided between the rear handle 160 and the battery B. According to the above configuration, the user can push up the bottom surface of battery B in the state of being attached to main body case 50 by inserting a finger into gap L2 between rear handle 160 and battery B. Thus, battery B can be easily detached from main body case 50.

In one or more embodiments, as shown in fig. 7, the center of gravity G of the hedge trimmer 2 in a state where the battery B is attached to the main body case 50 is located rearward of the front handle 126 and forward of the rear handle 160. According to the above configuration, the user can easily suppress the inclination of the hedge trimmer 2 in the front-rear direction in a state where the user holds the hedge trimmer 2. Thus, the operability of the hedge trimmer 2 can be improved.

(corresponding relationship)

A pair of blades 20 is an example of a "blade". The motor 80 is an example of a "prime mover". The vibration isolation rubbers 130a, 130b are an example of the "1 st vibration isolation member". The vibration isolation rubbers 136a, 136b are an example of the "2 nd vibration isolation member".

Specific examples of the present invention have been described above in detail, but these are merely examples and do not limit the claims. The techniques recited in the claims include modifications and variations of the specific examples described above.

In the first modification example (1), the vibration damping rubbers 136a and 136b may not be provided between the main body case 50 and the handle support portion 120.

In the (2 nd modification), the handle support portion 120 and the front handle 126 may be formed independently of each other.

The "motor" according to variation 3 is not limited to the motor 80, and may be an engine or the like.

In the (4 th modification), the sliding direction of the battery B may be at an angle of 45 degrees or more upward with respect to the longitudinal axis a of the blade unit 12.

In the modification 5, the battery B may be attached to the right side surface, the left side surface, or the like of the motor case 60.

In the (6 th modification), the number of the batteries B that can be mounted on the motor case 60 is not limited to one, and may be two or more.

In the (7 th modification), the center of gravity G of the hedge trimmer 2 may be located forward of the front handle 126.

Although specific examples have been described in detail above, these are merely examples and do not limit the claims. The techniques recited in the claims include modifications and variations of the specific examples described above. The technical elements described in the present specification or the drawings can exhibit technical usability individually or in various combinations.