阅读说明：本技术 电梯门的安全装置 (Safety device for elevator door ) 是由 北泽昌也 于 2018-08-27 设计创作，主要内容包括：在电梯门的安全装置中,接触部件能够在从电梯门的门挡侧端部突出的突出位置与位于比突出位置靠门套侧的退避位置之间相对于电梯门移动。在电梯门上设有第1安装轴及第2安装轴。第1连杆部件安装在接触部件及第1安装轴上。第2连杆部件安装在接触部件及第2安装轴上。在沿着电梯门的厚度方向观察接触部件时,第1安装轴及第2安装轴配置在接触部件相对于电梯门移动的范围内。(In the safety device of the elevator door, the contact member can move relative to the elevator door between a protruding position protruding from the door stop side end of the elevator door and a retreating position located closer to the door pocket side than the protruding position. The elevator door is provided with a 1 st installation shaft and a 2 nd installation shaft. The 1 st link member is mounted on the contact member and the 1 st mounting shaft. The 2 nd link member is mounted on the contact member and the 2 nd mounting shaft. When the contact member is viewed along the thickness direction of the elevator door, the 1 st and 2 nd mounting shafts are disposed within the range in which the contact member moves relative to the elevator door.)

1. A safety device for an elevator door, comprising:

a 1 st installation shaft and a 2 nd installation shaft which are arranged on the elevator door and are separated from each other in the vertical direction;

a contact member that is movable relative to the elevator door between a protruding position protruding from a door stop side end portion of the elevator door and a retracted position located closer to a door pocket side than the protruding position;

a 1 st link member attached to the contact member and the 1 st mounting shaft, and rotating about the 1 st mounting shaft in accordance with movement of the contact member relative to the elevator door;

a 2 nd link member attached to the contact member and the 2 nd mounting shaft and rotating about the 2 nd mounting shaft in accordance with movement of the contact member with respect to the elevator door; and

a switch that detects whether the contact member is moved away from the protruding position,

when the contact member is viewed in the thickness direction of the elevator door, the 1 st and 2 nd mounting shafts are disposed within a range in which the contact member moves relative to the elevator door.

2. The safety device for elevator doors according to claim 1,

the contact member is rotatable about a 1 st connecting shaft provided in the 1 st link member and about a 2 nd connecting shaft provided in the 2 nd link member,

when the contact member is located at the projecting position, the 1 st connecting shaft is located below the 1 st mounting shaft and on the side of the pocket from the 1 st mounting shaft,

when the contact member is located at the projecting position, the 2 nd connecting shaft is located below the 2 nd mounting shaft and closer to the door pocket side than the 2 nd mounting shaft.

3. The safety device of elevator doors according to claim 1 or 2,

the safety device of the elevator door is provided with a sensor which is provided with a light projector and a light receiver for receiving the light from the light projector,

one of the projector and the light receiver is provided on the contact member, and the other is disposed at a position facing the one in the moving direction of the elevator door.

4. The safety device of elevator doors according to any one of claims 1 to 3,

the elevator door is provided with a door panel,

the door panel has a panel outer panel and a panel end plate which protrudes from a width-direction end of the panel outer panel toward a back side of the panel outer panel and forms a width-direction end surface of the door panel,

the 1 st link member and the 2 nd link member are disposed within a range of the panel end plate in a thickness direction of the door panel.

Technical Field

The present invention relates to a safety device for an elevator door, in which a contact member is movably provided to the elevator door via a link member.

Background

Conventionally, there is known an elevator door device in which an obstacle sensor is provided at a door stop side end of a door panel via two link members. In such a conventional elevator door apparatus, two mounting shafts are mounted to the door panel via mounting pieces. The link members are independently rotatably attached to the two mounting shafts. When the obstacle sensor moves relative to the door panel, each link member rotates about each mounting shaft in accordance with the movement of the obstacle sensor (see, for example, patent document 1).

Prior art documents

Patent document

Patent document 1: japanese patent laid-open No. 9-40336

Disclosure of Invention

Problems to be solved by the invention

In the conventional elevator door device shown in patent document 1, the attachment tool and the attachment shaft are disposed at positions inward of the range in which the obstacle sensor moves in the width direction of the door panel. Therefore, the space on the inner side in the width direction of the door panel cannot be effectively utilized. For example, when the door panel is provided with a window, if the window becomes large, at least a part of the mounting tool and the mounting shaft can be seen through the window from the outside, and the design of the door panel is degraded.

The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a safety device for an elevator door, which can reduce an installation space of the elevator door.

Means for solving the problems

The safety device of an elevator door of the invention comprises: a 1 st installation shaft and a 2 nd installation shaft which are arranged on the elevator door and are separated from each other in the vertical direction; a contact member that is movable relative to the elevator door between a protruding position protruding from a door stop side end portion of the elevator door and a retracted position located closer to the door pocket than the protruding position; a 1 st link member mounted to the contact member and the 1 st mounting shaft and rotating about the 1 st mounting shaft in accordance with movement of the contact member relative to the elevator door; a 2 nd link member mounted to the contact member and the 2 nd mounting shaft and rotating about the 2 nd mounting shaft in accordance with movement of the contact member relative to the elevator door; and a switch for detecting whether the contact member is separated from the protruding position, wherein when the contact member is observed along the thickness direction of the elevator door, the 1 st mounting shaft and the 2 nd mounting shaft are arranged in the moving range of the contact member relative to the elevator door.

Effects of the invention

According to the safety device of the elevator door of the invention, the installation space of the safety device relative to the elevator door can be reduced.

Drawings

Fig. 1 is a front view showing an elevator door device according to embodiment 1 of the present invention.

Fig. 2 is a sectional view taken along line II-II of fig. 1.

Fig. 3 is a sectional view taken along the line III-III of fig. 1.

Fig. 4 is a front view showing an elevator door apparatus as viewed from the inside of the car of fig. 1.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment 1.

Fig. 1 is a front view showing an elevator door device according to embodiment 1 of the present invention. In the figure, a car 1 is provided in a hoistway so as to be movable in the vertical direction. The car 1 is provided with a car doorway 2 serving as an elevator doorway. Further, a hanger case 3 and a car sill 5 are fixed to the car 1, the hanger case 3 is disposed above the car doorway 2, and the car sill 5 is disposed below the car doorway 2. Fig. 1 shows an elevator door apparatus as viewed from the outside of the car 1.

A door guide rail 4 is fixed to the hanger case 3, and the door guide rail 4 is disposed along the lateral width direction of the car doorway 2. A 1 st car door 6 and a 2 nd car door 7 are hung on the door rail 4. The 1 st car door 6 and the 2 nd car door 7 are elevator doors for opening and closing the car doorway 2.

The 1 st car door 6 and the 2 nd car door 7 are movable along the door guide rails 4 in the lateral width direction of the car doorway 2. A door driving device, not shown, is provided in the hanger case 3. The 1 st car door 6 and the 2 nd car door 7 are moved in opposite directions to each other in the lateral width direction of the car doorway 2 by the driving force of the door driving apparatus. The car doorway 2 is opened and closed by movement of the 1 st car door 6 and the 2 nd car door 7. Therefore, the elevator door device of the present embodiment is a double-door type elevator door device.

Of the width-direction both ends of the 1 st car door 6, the end on the forward side in the traveling direction of the 1 st car door 6 when closing the car doorway 2 is the door stop-side end of the 1 st car door 6. Further, of the width-direction both ends of the 1 st car door 6, the end on the front side in the traveling direction of the 1 st car door 6 when the car doorway 2 is opened is the pocket-side end of the 1 st car door 6.

Of the width-direction both ends of the 2 nd car door 7, the end on the forward side in the traveling direction of the 2 nd car door 7 when closing the car doorway 2 is the door stop-side end of the 2 nd car door 7. Further, of the width-direction both ends of the 2 nd car door 7, the end on the front side in the traveling direction of the 2 nd car door 7 when the car doorway 2 is opened is the pocket-side end of the 2 nd car door 7.

The car sill 5 is disposed along the lateral width direction of the car doorway 2. A sill groove, not shown, is provided in the car sill 5 along the moving direction of the 1 st car door 6 and the 2 nd car door 7.

The 1 st car door 6 and the 2 nd car door 7 each have a door panel 8 that opens and closes the car doorway 2, a door hanger 11 provided at an upper end of the door panel 8, and a plurality of legs provided at a lower end of the door panel 8.

The door hangers 11 of the 1 st car door 6 and the 2 nd car door 7 are hung on the door rails 4. The legs of the 1 st car door 6 and the 2 nd car door 7 are inserted into the floor groove of the car sill 5.

The width direction of the door panel 8 of each of the 1 st car door 6 and the 2 nd car door 7 coincides with the lateral width direction of the car doorway 2. The height direction of the door panel 8 of each of the 1 st car door 6 and the 2 nd car door 7 coincides with the height direction of the car doorway 2. The thickness direction of the door panel 8 of each of the 1 st car door 6 and the 2 nd car door 7 coincides with the depth direction of the car doorway 2.

The door panels 8 of the 1 st car door 6 and the 2 nd car door 7 are provided with openings 9 serving as doors and windows. In this example, the door panel 8 and the opening 9 are each rectangular in shape. In this example, the width dimension of the opening 9 is larger than half the width dimension of the door panel 8. In this example, the position of the opening 9 with respect to the door panel 8 is closer to the door stop side end of the door panel 8 than the door pocket side end of the door panel 8.

The door panel 8 of each of the 1 st car door 6 and the 2 nd car door 7 is provided with a window panel 10 that closes the opening 9. The window panel 10 is a transparent panel made of glass.

Here, fig. 2 is a sectional view taken along line II-II of fig. 1. Further, fig. 3 is a sectional view taken along the line III-III of fig. 1. The door panel 8 of each of the 1 st car door 6 and the 2 nd car door 7 includes: a panel outer plate 81 provided with an opening 9; a pair of panel end plates 82 that protrude from both width-direction end portions of the panel outer plate 81 toward the back side of the panel outer plate 81; and a pair of panel folding plates 83 that protrude from the pair of panel end plates 82 toward the inside in the width direction of the door panel 8.

One of the panel end plates 82 of the door panel 8 forms a widthwise end surface of the door panel 8 at the door stop side end of the door panel 8. The other panel end plate 82 of the door panel 8 forms a widthwise end surface of the door panel 8 at the door pocket side end of the door panel 8.

As shown in fig. 1, the 1 st car door 6 is provided with a safety device 21. The safety device 21 has a safety shoe 22, a 1 st link 23, a 2 nd link 24, a spring 25, a switch 26, and a stopper 27. In fig. 1, a part of the safety boot 22 is omitted to show a structure shielded by the safety boot 22.

The safety shoe 22 is a rod-shaped contact member disposed along the height direction of the 1 st car door 6. The safety shoe 22 is disposed within the range of the door panel 8 of the 1 st car door 6 in the height direction. The safety shoe 22 is movable relative to the 1 st car door 6 between a projecting position projecting from the door stop side end of the 1 st car door 6 and a retracted position located closer to the door pocket side than the projecting position. Thus, when the safety shoe 22 reaches the projecting position, a part of the safety shoe 22 projects outward in the width direction of the door panel 8 of the 1 st car door 6. The safety shoe 22 when located at the retracted position is located further to the outside in the width direction of the 1 st car door 6 than the opening 9. Thus, even if the safety shoe 22 reaches the retracted position, the safety shoe 22 is not exposed to the outside through the opening 9. In addition, fig. 1 shows a state in which the safety boot 22 is in the protruding position.

The 1 st link device 23 and the 2 nd link device 24 are disposed apart from each other in the vertical direction. In this example, the 2 nd link device 24 is disposed below the 1 st link device 23. The 1 st link device 23 and the 2 nd link device 24 are disposed between the opening 9 and the width-direction end surface of the door panel 8 at the door stop side end of the 1 st car door 6, respectively.

As shown in fig. 2, the 1 st link device 23 has a 1 st fixing plate 231, a 1 st mounting shaft 232, a 1 st link member 233, and a 1 st link mechanism 234.

The 1 st fixing plate 231 is fixed to the back surface of the panel outer plate 81 of the 1 st car door 6. The 1 st mounting shaft 232 is fixed to the 1 st fixing plate 231. Thus, the 1 st mounting shaft 232 is provided to the door panel 8 of the 1 st car door 6 via the 1 st fixing plate 231.

The axis of the 1 st mounting shaft 232 is perpendicular to the panel outer panel 81 of the 1 st car door 6. Thus, the axial direction of the 1 st mounting shaft 232 coincides with the thickness direction of the door panel 8 of the 1 st car door 6.

The 1 st link member 233 is attached to the safety shoe 22 and the 1 st attachment shaft 232. One end of the 1 st link member 233 is rotatably attached to the 1 st mounting shaft 232. Thereby, the 1 st link member 233 rotates about the 1 st mounting shaft 232 in accordance with the movement of the safety shoe 22 relative to the 1 st car door 6.

The 1 st mounting shaft 232 and the 1 st link member 233 are disposed within the range of the panel end plate 82 in the thickness direction of the door panel 8 of the 1 st car door 6. Thus, the 1 st mounting shaft 232 and the 1 st link member 233 are accommodated inside the door panel 8 of the 1 st car door 6, regardless of whether the 1 st car door 6 is viewed in the width direction or the thickness direction of the 1 st car door 6.

The 1 st link mechanism 234 is a mechanism for attaching the safety shoe 22 to the other end of the 1 st link member 233. That is, the safety shoe 22 is attached to the other end portion of the 1 st link member 233 via the 1 st link mechanism 234.

The 1 st link mechanism 234 has a 1 st link shaft 235, a 1 st support member 236, and a 1 st joint 237.

The 1 st link shaft 235 is rotatably provided at the other end of the 1 st link member 233. Further, the axis of the 1 st connecting shaft 235 is parallel to the axis of the 1 st mounting shaft 232.

The safety boot 22 is provided with a groove 221 along the longitudinal direction of the safety boot 22. The inner surface of the groove 221 is provided with a protrusion 222.

The 1 st support member 236 is a U-shaped member as follows: the U-shaped member has a pair of arm portions parallel to each other and a connecting portion connecting end portions of the pair of arm portions to each other. The 1 st support member 236 is disposed such that the U-shaped open portion faces the width direction outer side of the door panel 8.

One arm of the 1 st support member 236 is fixed to an end of the 1 st connecting shaft 235. The other arm portion of the 1 st support member 236 is inserted into the groove 221 of the boot 22.

The 1 st engagement member 237 has a screw that can be inserted into the groove 221 of the safety boot 22. The other arm of the 1 st support member 236 is attached to the projection 222 in the groove 221 by screwing the screw of the 1 st joint 237.

When the safety shoe 22 is viewed in the thickness direction of the 1 st car door 6, the 1 st connecting shaft 235 overlaps the safety shoe 22. The safety shoe 22 is rotatable about the 1 st link shaft 235 with respect to the 1 st link member 233. The 1 st connecting shaft 235 moves relative to the 1 st car door 6 in accordance with the movement of the safety shoe 22 relative to the 1 st car door 6. When the safety shoe 22 is in the projecting position, as shown in fig. 1, the 1 st connecting shaft 235 is positioned below the 1 st mounting shaft 232 and on the door pocket side of the 1 st mounting shaft 232.

As shown in fig. 3, the 2 nd link device 24 has a 2 nd fixing plate 241, a 2 nd mounting shaft 242, a 2 nd link member 243, and a 2 nd link mechanism 244.

The 2 nd fixing plate 241 is fixed to the back surface of the panel outer plate 81 of the 1 st car door 6. The 2 nd mounting shaft 242 is fixed to the 2 nd fixing plate 241. Thereby, the 2 nd mounting shaft 242 is provided to the door panel 8 of the 1 st car door 6 via the 2 nd fixing plate 241.

The axis of the 2 nd mounting shaft 242 is parallel to the axis of the 1 st mounting shaft 232. Therefore, the axial direction of the 2 nd mounting shaft 242 coincides with the thickness direction of the door panel 8 of the 1 st car door 6.

The 2 nd link member 243 is attached to the safety shoe 22 and the 2 nd mounting shaft 242. One end of the 2 nd link member 243 is rotatably attached to the 2 nd mounting shaft 242. Thereby, the 2 nd link member 243 rotates about the 2 nd attaching shaft 242 in accordance with the movement of the safety shoe 22 with respect to the 1 st car door 6.

The 2 nd mounting shaft 242 and the 2 nd link member 243 are disposed within the range of the panel end plate 82 in the thickness direction of the door panel 8 of the 1 st car door 6. Thus, the 2 nd attaching shaft 242 and the 2 nd link member 243 are accommodated inside the door panel 8 of the 1 st car door 6, regardless of whether the 1 st car door 6 is viewed in the width direction or the thickness direction of the 1 st car door 6.

The 2 nd link mechanism 244 is a mechanism for attaching the safety shoe 22 to the other end of the 2 nd link member 243. That is, the safety boot 22 is attached to the other end portion of the 2 nd link member 243 via the 2 nd link mechanism 244.

The 2 nd connecting mechanism 244 has a 2 nd connecting shaft 245, a 2 nd supporting member 246, and a 2 nd engaging member 247.

The 2 nd link shaft 245 is rotatably provided at the other end portion of the 2 nd link member 243. Further, the axis of the 2 nd connecting shaft 245 is parallel to the axis of the 2 nd mounting shaft 242.

The 2 nd support member 246 is a U-shaped member as follows: the U-shaped member has a pair of arm portions parallel to each other and a connecting portion connecting end portions of the pair of arm portions to each other. The 2 nd support member 246 is disposed such that the U-shaped open portion faces the outer side in the width direction of the door panel 8.

One arm of the 2 nd support member 246 is fixed to an end of the 2 nd connecting shaft 245. The other arm portion of the 2 nd support member 246 is inserted into the groove 221 of the boot 22.

The 2 nd engaging member 247 has a screw capable of being inserted into the groove 221 of the safety boot 22. The other arm of the 2 nd support member 246 is attached to the projection 222 in the groove 221 by tightening the screw of the 2 nd joint 247.

When the safety shoe 22 is viewed in the thickness direction of the 1 st car door 6, the 2 nd connecting shaft 245 overlaps the safety shoe 22. The safety shoe 22 is rotatable about the 2 nd connecting shaft 245 with respect to the 2 nd link member 243. The 2 nd connecting shaft 245 moves relative to the 1 st car door 6 in accordance with the movement of the safety shoe 22 relative to the 1 st car door 6. When the safety shoe 22 is in the projecting position, as shown in fig. 1, the 2 nd connecting shaft 245 is positioned below the 2 nd mounting shaft 242 and on the door pocket side of the 2 nd mounting shaft 242.

When the safety shoe 22 is viewed in the thickness direction of the 1 st car door 6, the 1 st mounting shaft 232, the 2 nd mounting shaft 242, the 1 st link member 233, and the 2 nd link member 243 are disposed within a range in which the safety shoe 22 moves relative to the 1 st car door 6. Thus, when the safety shoe 22 is located at least any one position within the movement range of the safety shoe 22, the safety shoe 22 overlaps with the 1 st mounting shaft 232, the 2 nd mounting shaft 242, the 1 st link member 233, and the 2 nd link member 243 when the safety shoe 22 is viewed in the thickness direction of the 1 st car door 6. In this example, when the safety shoe 22 is viewed in the thickness direction of the 1 st car door 6, the 1 st mounting shaft 232, the 2 nd mounting shaft 242, the 1 st link member 233, and the 2 nd link member 243 are all disposed at positions that overlap the safety shoe 22 regardless of the position between the projecting position and the retracted position of the safety shoe 22.

The 1 st link member 233 and the 2 nd link member 243 are interlocked with the movement of the safety shoe 22 relative to the 1 st car door 6 while being held parallel to each other. Thus, the safety shoe 22 moves between the projected position and the retracted position while the longitudinal direction of the safety shoe 22 is kept in the vertical direction.

As shown in fig. 1, the spring 25 is an elastic body connected to the 1 st fixing plate 231 and the 1 st link member 233. Further, the spring 25 generates an elastic restoring force between the 1 st fixing plate 231 and the 1 st link member 233. The spring 25 applies a force to the 1 st link member 233 so that the 1 st link member 233 rotates in the counterclockwise direction of fig. 1 about the 1 st mounting shaft 232. That is, the spring 25 applies a force to the 1 st link member 233 in a direction in which the safety shoe 22 moves to the projected position.

The switch 26 is mounted to the 2 nd fixing plate 241. Further, the switch 26 is disposed at a position operated by the 2 nd link member 243 when the safety shoe 22 is located at the projected position. Further, the state in which the switch 26 is operated by the 2 nd link member 243 is released by the safety shoe 22 moving away from the projecting position to the retracted position. Whether the safety shoe 22 is separated from the protruding position is detected by detecting whether the switch 26 is operated by the 2 nd link part 243. For example, when the safety shoe 22 is pushed from the projecting position to the retracted position by an obstacle during movement of the 1 st car door 6, the state in which the switch 26 is operated by the 2 nd link member 243 is released.

The car 1 is provided with a door control device, not shown, which controls the movement of each of the 1 st car door 6 and the 2 nd car door 7. The switch 26 detects that the safety shoe 22 is out of the projecting position, and transmits a detection signal to the door control device. The door control device controls the movement of each of the 1 st car door 6 and the 2 nd car door 7 according to whether or not the detection signal from the switch 26 is received.

The stopper 27 is fixed to the 2 nd fixing plate 241. Furthermore, the stop 27 bears against the 2 nd link part 243 when the safety boot 22 is in the protruding position. Thereby, the stopper 27 prevents the 2 nd link member 243 from rotating in the counterclockwise direction of fig. 1. That is, the stopper 27 receives the 1 st link member 243 to prevent the safety shoe 22 from moving from the projected position to the direction opposite to the retracted position.

Fig. 4 is a front view showing an elevator door apparatus as viewed from the inside of the car 1 of fig. 1. In a state where the car doorway 2 is closed by the 1 st car door 6 and the 2 nd car door 7, the respective opening portions 9 of the 1 st car door 6 and the 2 nd car door 7 are housed inside the car doorway 2 when viewed from inside the car 1. Further, the safety shoe 22, the 1 st link device 23, the 2 nd link device 24, the spring 25, the switch 26, and the stopper 27 are shielded by the door panel 8 from protruding toward the opening 9 when viewed from the inside of the car 1.

Next, the operation will be described. In a normal state, the position of the safety shoe 22 is held at the projected position by the self weight of the safety shoe 22 and the elastic restoring force of the spring 25. When the safety shoe 22 is located at the protruding position, the switch 26 is operated by the 2 nd link part 243. Thus, the 1 st car door 6 and the 2 nd car door 7 perform normal opening and closing operations under the control of the door control device.

When the safety shoe 22 is pushed from the projecting position toward the retracted position by an obstacle such as a passenger when the 1 st car door 6 and the 2 nd car door 7 move in the door closing direction, the operating state of the switch 26 by the 2 nd link member 243 is released. Thereby, the detection signal is sent from the switch 26 to the door control device. Upon receiving the detection signal from the switch 26, the door control device performs control to reverse the moving direction of the 1 st car door 6 and the 2 nd car door 7 from the door closing direction to the door opening direction.

In the safety device 21, when the safety shoe 22 is viewed in the thickness direction of the 1 st car door 6, the 1 st and 2 nd mounting shafts 232, 242 are disposed within the range in which the safety shoe 22 moves relative to the 1 st car door 6. Therefore, the 1 st and 2 nd mounting shafts 232 and 242 can be accommodated within the range in which the safety boot 22 moves. This can reduce the size of the installation space of the safety device 21 in the width direction of the 1 st car door 6. This can reduce the installation space of the safety device 21 for the 1 st car door 6. Therefore, for example, in the case where the door panel 8 of the 1 st car door 6 is provided with the opening 9 as a door window, the safety device 21 can be prevented from being exposed from the opening 9, and the opening 9 can be increased while maintaining design properties.

When the safety shoe 22 is in the projecting position, the 1 st connecting shaft 235 is positioned below the 1 st mounting shaft 232 and on the door pocket side of the 1 st mounting shaft 232. When the safety shoe 22 is in the projecting position, the 2 nd connecting shaft 245 is positioned below the 2 nd mounting shaft 242 and on the door pocket side of the 2 nd mounting shaft 242. Therefore, a moment due to the own weight of the safety shoe 22 can be applied to the 1 st link member 233 and the 2 nd link member 243 in the direction in which the safety shoe 22 moves to the projecting position. This makes it easy to hold the position of the safety shoe 22 at the projecting position, and prevents malfunction due to the safety shoe 22 being erroneously separated from the projecting position.

The 1 st link member 233 and the 2 nd link member 243 are disposed within the range of the panel end plate 82 in the thickness direction of the door panel 8 of the 1 st car door 6. Therefore, the 1 st link member 233 and the 2 nd link member 243 can be accommodated inside the 1 st car door 6 in the thickness direction. This prevents the safety device 21 from being disposed so as to protrude greatly toward the back side of the 1 st car door 6. Therefore, the safety device 21 can be prevented from protruding toward the landing side from the end surface of the car sill 5 on the landing side.

In the above example, a sensor having a light projector and a light receiver for receiving light from the light projector may be added to the safety device 21. In this way, an obstacle such as a passenger passing through the car doorway 2 can be detected in a non-contact manner. This enables more reliable detection of an obstacle. In this case, one of the projector and the light receiver is provided in the safety shoe 22. The other device is disposed at a position facing the one device in the moving direction of the 1 st car door 6 and the 2 nd car door 7.

Therefore, when the light projector is provided on the safety shoe 22, the light receiver is disposed at a position facing the light projector in the moving direction of the 1 st car door 6 and the 2 nd car door 7. In this case, the light receiver is provided at the door stop side end of the door panel 8 of the 2 nd car door 7. The sensor detects that an obstacle is present between the light projector and the light receiver when the light receiver stops in a state where the light receiver receives the light from the light projector. As the sensor, for example, an infrared sensor that receives infrared light emitted from the light projector by a light receiver is used.

In addition, when a sensor having a light projector and a light receiver for receiving light from the light projector is added to the safety device 21, the light receiver may be provided in the safety boot 22. In this case, the projector is disposed at a position facing the light receiver in the moving direction of the 1 st car door 6 and the 2 nd car door 7. That is, the projector is provided at the door stop side end of the door panel 8 of the 2 nd car door 7.

In the above example, the safety device 21 is provided in the 1 st car door 6. However, the safety device 21 may be provided in the 2 nd car door 7.

In the above example, the safety device 21 is provided in a double-opening elevator door device in which the 1 st car door 6 and the 2 nd car door 7 move in opposite directions to each other when the car doorway 2 is opened and closed. However, the safety device 21 may be provided in a single-opening elevator door device in which the 1 st car door 6 and the 2 nd car door 7 move in the same direction when the car doorway 2 is opened and closed.

Description of the reference symbols

6: 1 st car door (elevator door); 7: 2 nd car doors (elevator doors); 8: a door panel; 22: safety boots (contact members); 81: a panel outer plate; 82: a panel end plate; 232: 1, mounting a shaft; 233: a 1 st link member; 235: 1, a first connecting shaft; 242: 2 nd installation shaft; 243: a 2 nd link member; 245: and the 2 nd connecting shaft.