KR20100005118A - Door engagement device for elevator - Google Patents

Abstract

In a door engagement device for an elevator, first and second engagement members are arranged on an elevator car door via interlocking link mechanisms. The interlocking link mechanisms change the distance between the first and second engagement members by moving their positions in an interlocked manner. A power transmission body is moved in the door opening/closing direction by a drive motor for opening and closing the door. A transmission body connection section connected to the power transmission body is provided on the first engagement member. In the interlocking link mechanisms, movement of the power transmission body moves the first engagement member in the direction parallel to the door opening/closing direction.

Description

Door latching device of elevator {DOOR ENGAGEMENT DEVICE FOR ELEVATOR}

The present invention relates to a door engaging device for synchronously driving an elevator car door and a landing door.

In a conventional door engagement device of an elevator, the first and second runners are interlocked by a pair of link mechanisms to engage and release the engagement rollers of the landing door. Each link mechanism has an adjustment element rotatably installed on a car door and a joint member rotatably connected to one end of the adjustment element. The joint member is rotatably connected to the first runner. The other end of the adjustment element is rotatably connected to the second runner. The control element is connected to the drive belt circulated by the drive motor. As the driving belt is circulated, the adjusting element is rotated to open and close the first and second runners (see Patent Document 1, for example).

Patent Document 1: Japanese Patent Application Laid-Open No. 2005-170680

Problems to be Solved by the Invention

In the conventional door engaging apparatus as described above, since the driving belt is connected to the adjusting element and the driving belt is circulated, the adjusting element is rotated. It is pushed down and this raises the tension of a drive belt. Moreover, since the 1st and 2nd runners are also displaced also in the up-down direction while opening and closing, it was necessary to ensure the avoidance space above and below the 1st and 2nd runners. In addition, since the movement of the drive belt is transmitted to the first and second runners through the adjustment element, the movement of the drive belt and the first and second runners does not coincide, so that the opening and closing speed of the first and second runners is not adjusted. It was difficult.

The present invention has been made to solve the above problems, it is possible to move the power transmission body more linearly, it is possible to reduce the amount of displacement in the vertical direction of the first and second engagement member, the first and second An object of the present invention is to obtain an elevator door engaging device capable of synchronizing the movement of the engagement member with the movement of the power transmission body.

Means for solving the problem

The door engaging device of the elevator according to the present invention is provided on the car door, and the first and the first engaging with the landing door side engaging portion provided on the landing door by changing the interval of each other in the opening and closing direction of the car door. 2 is provided on the door of the car at intervals between the engaging member and the vertical direction to support the first and second engaging members, and simultaneously displaces the first engaging member and the second engaging member to displace the first engaging member. And a plurality of interlocking link mechanisms for varying the distance of the second engaging member, wherein the first engaging member is connected to a power transmission member moving in the opening and closing direction of the car door by a drive motor for opening and closing the car door. The transmission body connection part is provided, and the interlocking link mechanism moves the first engagement member by the movement of the power transmission body. Displace parallel to the opening and closing direction of the car door.

BRIEF DESCRIPTION OF THE DRAWINGS It is the front view which looked at the door engaging apparatus of the elevator which concerns on Embodiment 1 of this invention from the boarding point side.

FIG. 2 is a front view illustrating a state in which the distance between the first and second engagement members of FIG. 1 is reduced.

It is the front view which looked at the door engaging apparatus of the elevator which concerns on Embodiment 2 of this invention from the boarding point side.

It is the front view which looked at the door engaging apparatus of the elevator which concerns on Embodiment 3 of this invention from the boarding point side.

It is the front view which looked at the door engaging apparatus of the elevator which concerns on Embodiment 4 of this invention from the boarding point side.

It is the front view which looked at the door engaging apparatus of the elevator which concerns on Embodiment 5 of this invention from the boarding point side.

It is the front view which looked at the door engaging apparatus of the elevator which concerns on Embodiment 6 of this invention from the boarding point side.

Preferred Mode for Carrying Out the Invention

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described with reference to drawings.

Embodiment 1.

BRIEF DESCRIPTION OF THE DRAWINGS It is the front view which looked at the door engaging apparatus of the elevator which concerns on Embodiment 1 of this invention from the boarding point side. In the figure, the base plate 2 is fixed to the upper part of the car door 1. The base plate 2 is provided with a first engagement member (drive side engagement vane) 3 and a second engagement member (driven side engagement vane) 4. The longitudinal directions of the first and second engagement members 3 and 4 are parallel to the vertical direction.

Moreover, the 1st and 2nd engaging members 3 and 4 are arrange | positioned at intervals mutually in the opening-closing direction (left-right direction of FIG. 1) of the car door 1. As shown in FIG. The space | interval of the 1st and 2nd engaging members 3 and 4 is changeable. When the car is moved into the door zone, the engaging roller 5 as the landing door side engaging portion installed in the landing door (not shown) is provided with the first and second engaging members 3 and 4. Located in between. In this state, the interval between the first and second engagement members 3 and 4 is changed, so that the first and second engagement members 3 and 4 are engaged with the engagement roller 5.

In this example, the interval between the first and second engagement members 3, 4 is reduced, so that the first and second engagement members 3, 4 are connected to the engagement roller 5 as shown in FIG. 2. The engagement, that is, the engagement roller 5 is fitted and supported. As a result, the car door 1 and the landing door are moved together. Moreover, as the space | interval of the 1st and 2nd engagement members 3 and 4 expands, as shown in FIG. 1, the engagement of the 1st and 2nd engagement members 3 and 4 to the engagement roller 5 is carried out. The alignment is released.

On the upper part of the first engagement member 3, a coupling member 6 as a carrier connection portion is fixed. The upper end of the engaging member 6 is connected to a drive belt 7 as a power transmission body. The drive belt 7 is circulated by a drive motor (not shown) which is a drive source for opening and closing the car door 1. Thereby, the connection part with the engaging member 6 of the drive belt 7 moves to the opening / closing direction of the car door 1. That is, the operation of the drive belt 7 is transmitted to the car door 1 through the operation of the first and second engagement members 3, 4.

The first and second engagement members 3 and 4 are supported by the base plate 2 via the upper linkage mechanism 8 and the lower linkage mechanism 9. The interlocking link mechanisms 8 and 9 are attached to the base plate 2 at intervals from each other in the vertical direction.

In addition, the interlocking link mechanisms 8 and 9 change the distance between the first and second engaging members 3 and 4 by interlocking and displacing the first engaging member 3 and the second engaging member 4. Let's do it. In addition, the linkage mechanisms 8 and 9 displace the first engagement member 3 in parallel in the opening and closing direction of the car door 1 by the movement of the drive belt 7.

The upper linkage link mechanism 8 and the lower linkage link mechanism 9 have the same structure. Each interlocking link mechanism 8 and 9 has a floating support arm 10 and a rotation support arm 11. The floating support arm 10 has a first engagement member connecting portion 10a rotatably connected to the first engagement member 3. The rotation support arm 11 includes a floating support arm connection portion 11a rotatably connected to the floating support arm 10 and a second engagement member connection portion 11b rotatably connected to the second engagement member 4. Have.

Moreover, the rotation support arm 11 is supported by the car door 1 so that rotation is possible centering on the part between the floating support arm connection part 11a and the 2nd engagement member connection part 11b. That is, the intermediate part of the rotation support arm 11 is rotatably connected to the fixed shaft 12 fixed to the base plate 2.

The center of rotation of the rotation support arm 11, that is, the fixed shaft 12 and the first engaging member connecting portion 10a is disposed at the same position in the vertical direction. The fixed shaft 12, the floating support arm connecting portion 11a, and the first engaging member connecting portion 10a are not dependent on the distance between the first and second engaging members 3 and 4, and the floating supporting arm connecting portion 11a. Construct an isosceles triangle with the vertex as.

A guide mechanism 13 is provided between the base plate 2 and the first engagement member 3 to limit the movement of the first engagement member 3 in the horizontal direction. The guide mechanism 13 has a structure in which the guide pin 14 fixed to the first engagement member 3 is fitted to the slit 2a formed on the base plate 2. The slit 2a is formed parallel to the opening / closing direction of the car door 1.

Moreover, the guide mechanism 13 supports the own weight of the 1st engagement member 3, and the 1st conveyed from the rotation support arm 11 by the weight of the 2nd engagement member 4 is carried out. By supporting a force to lift the engagement member 3, the drive belt 7 is bent to prevent the positional relationship between the first engagement member connecting portion 10a and the fixed shaft 12 in the up-down direction. .

The cam part 11c is formed in the intermediate part of the rotation support arm 11. As shown in FIG. 11 d of lock parts (step part) are formed in the edge part of the cam part 11c. The base plate 2 is rotatably mounted with a latch 15 that engages with the cam portion 1c of the upper linkage mechanism 8. Moreover, the compression spring 16 which pushes the latch 15 to the cam part 1c is provided between the base board 2 and the latch 15. As shown in FIG.

When the first engagement member 3 is displaced in the door opening direction and the pivot support arm 11 is rotated counterclockwise in FIG. 1, the latch 15 hangs on the lock portion 11d as shown in FIG. 2. Fit. Thereby, the rotation of the rotation support arm 11 in the clockwise direction of FIG. 2 is regulated, and even if the drive belt 7 moves in the door closing direction, the first and second engagement members 3 and 4 are engaged. The engagement with the roller 5 is maintained.

The car is provided with a unlocking rod 17 for releasing the engagement of the latch 15 to the lock portion 11d. When the door 1 is moved in the door closing direction from the state of FIG. 2, the edge part of the latch 15 abuts against the unlocking rod 17. As shown in FIG. Then, when the car door 1 is further moved in the door closing direction, the pivot support arm 11 rotates against the compression spring 16 in the counterclockwise direction in FIG. 2 to lock 11d of the latch 15. The engagement with the furnace is released.

Next, the operation will be described. When the driving motor is rotated in the door opening direction from the door closing state of FIG. Move in the door opening direction. Thereby, the floating support arm connection part 11a is pushed up, and the rotation support arm 11 is rotated counterclockwise about the fixed shaft 12, and the 2nd engagement member 4 opens a door. Push out in the closing direction.

By this movement, when the door is opened, the interval between the first and second engagement members 3 and 4 is reduced along with the rotation of the drive motor, and as shown in FIG. 2, the first and second engagement members ( The engagement roller 5 is restrained between 3 and 4). When the drive belt 7 further moves in the door opening direction from the state of FIG. 2, the force of the drive belt 7 is transmitted to the car door 1, and the car door 1 and the landing door start to open.

Since the latch 15 is engaged with the lock portion 11d during the opening operation of the car door 1, even if a force is applied in the door closing direction due to disturbance, the first and second engaging members are engaged. (3, 4) does not open, and the movement of the car door 1 and the movement of the landing door stably match.

When the door is closed, the drive belt 7 is moved in the door closing direction by the rotation of the drive motor. At this time, since the latch 15 is engaged with the lock portion 11d and the engaging roller 5 is sandwiched between the first and second engaging members 3 and 4, the driving belt ( The movement of 7) is transmitted to the car door 1 and the landing door as it is, and the car door 1 and the landing door move in the door closing direction.

Thereafter, when the car door 1 is moved to just before the position where the car door 1 is fully closed, the engagement of the latch 15 to the lock portion 11d of the latch 15 is released by the unlocking rod 17. For this reason, the landing door loses the restraining force by the 1st and 2nd engaging members 3 and 4, and loses the force to the door closing direction from the drive belt 7. However, the landing door is always pressurized by the door closer (not shown) in the door closing direction. For this reason, after the engagement of the 1st and 2nd engagement members 3 and 4 to the engagement roller 5 is released, the landing door will be closed by the movement of a door closer.

On the other hand, the car door 1 tracks the movement of the 1st engagement member 3 by inertia, and all the doors are closed. The drive belt until the first and second engagement members 3 and 4 return to the state shown in FIG. 1 in the opposite movement as when the door is opened even after the car door 1 is completely closed and cannot move. (7) moves in the door closing direction to complete the door closing operation.

In such a door engaging device of an elevator, a coupling member 6 connected to the drive belt 7 is provided on the first engagement member 3, and the interlocking link mechanism ( Since 8 and 9 displace the first engagement member 3 in parallel in the opening and closing direction of the car door 1, the drive belt 7 can be moved more linearly, so that the tension of the drive belt 7 can be reduced. The fluctuation can be suppressed.

In addition, the amount of displacement in the vertical direction of the first engagement member 3 can be reduced, and the space for installing the first engagement member 3 can be reduced, thereby achieving space saving. In addition, the movement of the first and second engagement members 3 and 4 and the movement of the driving belt 7 can be matched to each other so that the opening and closing speed of the first and second engagement members 3 and 4 or the car door can be matched. The opening and closing speed of (1) can be easily controlled.

Furthermore, since the interlocking link mechanisms 8 and 9 are composed of the floating support arm 10 and the rotation support arm 11, the first and second engagement members 3 and 4 can be formed by a simple configuration. Can be linked.

In addition, the fixed shaft 12 and the first engaging member connecting portion 10a are disposed at the same position in the vertical direction, and the fixed shaft 12 and the floating support arm connecting portion 11a and the first engaging member connecting portion ( Since 10a constitutes an isosceles triangle with the floating support arm connecting portion 11a as a vertex, the first engagement member 3 can be displaced in parallel in the opening and closing direction of the car door 1 by a simple configuration. .

In addition, since the movement of the first engagement member 3 is limited in the horizontal direction by the guide mechanism 13, the first and second engagement members 3 and the first engagement member 4 are moved by the weight of the first engagement member 3. It is possible to more reliably prevent the second engagement members 3 and 4 from moving in the vertical direction.

In addition, the distance between the fixed shaft 12 and the floating support arm connecting portion 11a, and the distance between the floating supporting arm connecting portion 11a and the first engaging member connecting portion 10a do not necessarily need to be the same. When the distance between the fixed shaft 12 and the floating support arm connecting portion 11a and the distance between the floating supporting arm connecting portion 11a and the first engaging member connecting portion 10a are different, the first engaging member ( Although the range in which 3) can move horizontally becomes narrower, it may be designed to complete the engagement within this movement range.

Embodiment 2.

Next, FIG. 3 is the front view which looked at the door engaging apparatus of the elevator which concerns on Embodiment 2 of this invention from the boarding point side. In the figure, a guide mechanism 18 is provided between the base plate 2 and the first engagement member 3 to limit the movement of the first engagement member 3 in the horizontal direction. The guide mechanism 18 has a guide plate 19 provided on the base plate 2 and a guide roller 20 provided on the first engagement member 3 and driven along the upper surface of the guide plate 19. . The upper surface of the guide plate 19 is provided in parallel in the opening and closing direction of the car door 1. The other configuration is the same as that in the first embodiment.

The self-weight of the second fastening member 4 is sufficiently light with respect to the rigidity of the drive belt 7, so that the self-weight of the second fastening member 4 hardly deflects the drive belt 7. When the position of the engagement member 3 is unlikely to rise, the guide mechanism 18 which restricts only the displacement of the first engagement member 3 downward can be used. In this case, since it is not necessary to insert the guide pin 14 into the slit 2a like Embodiment 1, and adjustment of the clearance between the slit 2a and the guide pin 14 is unnecessary, manufacture of a part And the position adjustment at the time of assembly can be simplified.

In addition, the self-weight of the first fastening member 3 including the coupling member 6 is sufficiently light with respect to the rigidity of the drive belt 7 so that the drive belt 7 is bent by the weight of the first fastening member 3. When there is little and the possibility that the position of the 1st engagement member 3 falls is low, you may use the guide mechanism which made the guide mechanism 18 of FIG. 3 reverse up and down. In this case, the guide roller 20 is driven along the lower surface of the guide plate 19 so that only the displacement of the first engagement member 3 upward is restricted by the guide mechanism 18.

Embodiment 3.

Next, FIG. 4 is the front view which looked at the door engaging apparatus of the elevator which concerns on Embodiment 3 of this invention from the boarding point side. In Embodiment 3, the guide mechanism 13 in Embodiment 1 is abbreviate | omitted. The other configuration is the same as that in the first embodiment.

The self-weight of the first fastening member 3 including the engaging member 6 and the self-weight of the second fastening member 4 are sufficiently light with respect to the rigidity of the drive belt 7, so that the first fastening member 3 In the case where the position is unlikely to change up and down, the guide mechanisms 13 and 18 may be omitted as shown in FIG. 4. In this case, the first engagement member 3 can be moved horizontally by using the drive belt 7 itself as a guide, so that the device can be simplified and the cost can be reduced.

Embodiment 4.

Next, FIG. 5 is the front view which looked at the door engaging apparatus of the elevator which concerns on Embodiment 4 of this invention from the boarding point side. In the figure, the first and second engagement members 3 and 4 are supported by the base plate 2 via the upper linkage mechanism 21 and the lower linkage mechanism 22. The interlocking link mechanisms 21 and 22 are attached to the base plate 2 at intervals from each other in the vertical direction.

In addition, the interlocking link mechanisms 21 and 22 change the distance between the first and second engaging members 3 and 4 by interlocking and displacing the first engaging member 3 and the second engaging member 4. Let's do it. In addition, the linkage mechanisms 21 and 22 displace the first engagement member 3 in parallel in the opening and closing direction of the car door 1 by the movement of the drive belt 7.

The upper linkage link mechanism 21 and the lower linkage link mechanism 22 have the same structure. Each interlocking link mechanism 21, 22 has a first and second floating support arms 23, 24 and a pivot support arm 25 connected between the first and second floating support arms 23, 24. .

The first floating support arm 23 has a first engagement member connecting portion 23a rotatably connected to the first engagement member 3. The second floating support arm 24 has a second engagement member connection portion 24a rotatably connected to the second engagement member material 4.

The rotation support arm 25 includes a first floating support arm connection part 25a rotatably connected to the first floating support arm 23 and a second floating support arm connection part rotatably connected to the second floating support arm 24. Has 25b.

Moreover, the rotation support arm 25 is supported by the car door 1 so that rotation is possible centering on the part between the 1st floating support arm connection part 25a and the 2nd floating support arm connection part 25b. That is, the intermediate part of the rotation support arm 25 is rotatably connected to the fixed shaft 12 fixed to the base plate 2.

The center of rotation of the rotation support arm 25, that is, the fixed shaft 12, the first engagement member connecting portion 23a, and the second engagement member connecting portion 24a are disposed at the same position in the vertical direction. The fixed shaft 12, the first floating support arm connecting portion 25a, and the first engaging member connecting portion 23a are not dependent on the distance between the first and second engaging members 3 and 4, and the first floating supporting arm is fixed. It forms an isosceles triangle with the connection part 25a as a vertex.

In addition, the fixed shaft 12, the second floating support arm connecting portion 25b, and the second engaging member connecting portion 24a do not depend on the distance between the first and second engaging members 3 and 4, and are fixed to the second floating member. It forms an isosceles triangle with the support arm connection part 25b as a vertex.

The cam part 25c is formed in the middle part of the rotation support arm 25 of the upper interlocking link mechanism 21. As shown in FIG. At the end of the cam portion 25c, a lock portion (step portion) 25d is formed. A guide mechanism 13 is provided between the base plate 2 and the first engagement member 3 to limit the movement of the first engagement member 3 in the horizontal direction. The guide mechanism 13 is also provided between the base plate 2 and the second engagement member 4. The other configuration is the same as that in the first embodiment.

According to such a structure, not only the 1st engagement member 3 but also the 2nd engagement member 4 move horizontally, the installation space of the 2nd engagement member 4 is also reduced, and further space saving is achieved. We can plan.

In addition, when the weight of the first engagement member 3 including the coupling member 6 is sufficiently light with respect to the rigidity of the drive belt 7, the possibility of the position of the first engagement member 3 being lowered is lowered. 1 The guide mechanism 13 of the engaging member 3 can be omitted.

Embodiment 5.

Next, FIG. 6 is a front view which looked at the door engaging apparatus of the elevator by Embodiment 5 of this invention from the boarding point side. In the figure, the first and second engaging members 3 and 4 are supported by the base plate 2 via the upper linkage mechanism 31 and the lower linkage mechanism 32. The interlocking link mechanisms 31 and 32 are attached to the base plate 2 at intervals from each other in the vertical direction.

In addition, the interlocking link mechanisms 31 and 32 change the distance between the first and second engaging members 3 and 4 by displacing the first engaging member 3 and the second engaging member 4 in cooperation with each other. Let's do it. In addition, the interlocking link mechanisms 31 and 32 displace the first engagement member 3 in parallel in the opening and closing direction of the car door 1 by the movement of the drive belt 7.

The upper linkage mechanism 31 and the lower linkage mechanism 32 have the same pantograph structure. Each interlocking link mechanism 31, 32 has a pair of first floating support arms 33, a pair of second floating support arms 34, and a pair of pivotal support arms 35.

The first floating support arms 33 each have a first engagement member connecting portion 33a rotatably connected to the first engagement member 3, and are connected to the first engagement member 3 at the same position. . The second floating support arm 34 has second engagement member connecting portions 34a rotatably connected to the second engagement member 4, respectively, and is connected to the second engagement member 4 at the same position. .

The pivotal support arms 35 cross each other. Each pivot support arm 35 includes a first float support arm connection part 35a rotatably connected to the first float support arm 33 and a second float support arm rotatably connected to the second float support arm 34. It has the connection part 35b. Moreover, the rotation support arm 35 is supported by the car door 1 so that rotation is possible centering on the part between the 1st floating support arm connection part 35a and the 2nd floating support arm connection part 35b. That is, the intermediate part of the rotation support arm 35 is rotatably connected to the fixed shaft 12 fixed to the base plate 2.

The center of rotation of the rotation support arm 35, that is, the fixed shaft 12, the first engaging member connecting portion 33a and the second engaging member connecting portion 34a are disposed at the same position in the vertical direction. The fixed shaft 12, the first floating support arm connecting portion 35a, and the first fastening member connecting portion 33a do not depend on the distance between the first and second fastening members 3 and 4, and the first floating support arm. It forms an isosceles triangle with the connection part 35a as a vertex.

In addition, the fixed shaft 12, the second floating support arm connecting portion 35b, and the second engaging member connecting portion 34a do not depend on the interval between the first and second engaging members 3 and 4, It forms an isosceles triangle with the floating support arm connection part 35b as a vertex.

The cam part 35c is formed in the middle part of the rotation support arm 35 of the upper interlocking link mechanism 31. As shown in FIG. A lock portion (step portion) 35d is formed in the cam portion 35c. The other configuration is the same as that in the first embodiment.

According to such a structure, not only the 1st engagement member 3 but also the 2nd engagement member 4 move horizontally, the installation space of the 2nd engagement member 4 is also reduced, and further space saving is achieved. We can plan. Moreover, the guide mechanism 13 can be made into only one of the 1st and 2nd engaging members 3 and 4.

In addition, when the self-weight of the first engagement member 3 including the coupling member 6 is sufficiently light with respect to the rigidity of the drive belt 7, the possibility of the position of the first engagement member 3 being lowered is lowered. The mechanism 13 can be omitted.

Embodiment 6.

Next, FIG. 7 is the front view which looked at the door engaging apparatus of the elevator by Embodiment 6 of this invention from the boarding point side. In Embodiment 1, the space | interval of the 1st and 2nd engagement members 3 and 4 was reduced, and the 1st and 2nd engagement members 3 and 4 were engaged with the engagement roller 5, and so on. On the other hand, in Embodiment 6, since the space | interval of the 1st and 2nd engagement members 3 and 4 is expanded, it is the 1st and 2nd to the pair of engagement rollers 5a and 5b which are landing door side engagement parts. The engaging members 3 and 4 engage. Moreover, as the space | interval of the 1st and 2nd engagement members 3 and 4 is reduced, as shown in FIG. 7, the engagement rollers 5a and 5b of the 1st and 2nd engagement members 3 and 4 are shown. The engagement with the furnace is released.

Even with such a door engaging device, the same effect as that of Embodiments 1 to 5 can be obtained if the device configuration is a symmetrical arrangement with respect to FIGS. 1 to 6.

In the above example, the first and second engagement members 3 and 4 are supported by the upper interlocking link mechanisms 8, 21 and 31 and the lower interlocking link mechanisms 9, 22 and 32. (Iii) The first and second engagement members 3 and 4 may be supported by the above-described interlocking link mechanism.

Further, the landing door side engaging portion may be engageable with the first and second engaging members 3 and 4, and is not limited to the engaging rollers 5, 5a and 5b.

In addition, the power transmission body is not limited to the drive belt.

Furthermore, the present invention can be applied to a door device of one open type or to a door device of a central type.

In addition, although the coupling member 6 was connected to the 1st engagement member 3 in the said example, the 1st engagement member 3 and the engagement member 6 may be integrated.

As described above, the present invention can be used for a door engagement device for synchronously driving the car door and the landing door of an elevator.

Claims (8)

First and second fastening members provided on the car door and engaging with the door door side engaging portion provided on the door of the door by changing a distance from each other in the opening / closing direction of the car door, and It is installed on the car door at intervals from each other in the vertical direction, while supporting the first and second fastening members, the first fastening member and the second fastening member are interlocked to displace the first and second fastening members. And a plurality of interlocking link mechanisms for varying the distance between the first and second engaging members, The first engagement member is provided with a transmission connecting portion connected to a power transmission body moving in the opening and closing direction of the car door by a drive motor for opening and closing the car door, And the interlocking link mechanism displaces the first engagement member in parallel in the opening and closing direction of the car door by the movement of the power transmission body. The method according to claim 1, Each of the interlocking link mechanism, A floating support arm comprising a first engagement member connection portion rotatably connected to the first engagement member, and A floating support arm connecting portion rotatably connected to the floating support arm, and a second engaging member connecting portion rotatably connected to the second engaging member, the floating supporting arm connecting portion and the second engaging member connecting portion An elevator door engaging device having a pivotal support arm supported on the car door so as to be rotatable about a portion between the parts. The method according to claim 2, The pivot center of the pivot support arm and the first engagement member connecting portion are disposed at the same position in the vertical direction, And a rotation center of the pivot support arm, the floating support arm connection portion, and the first engagement member connection portion form an isosceles triangle having the floating support arm connection portion as a vertex. The method according to claim 2, And a guide mechanism for limiting the movement of the first engagement member in a horizontal direction. The method according to claim 1, Each of the interlocking link mechanism, A first floating support arm comprising a first engagement member connection part rotatably connected to the first engagement member, A second floating support arm comprising a second engagement member connection part rotatably connected to the second engagement member, and A first floating support arm connecting portion rotatably connected to the first floating support arm, and a second floating supporting arm connecting portion rotatably connected to the second floating supporting arm, wherein the first floating support arm connecting portion and the first floating support arm connecting portion 2. An elevator door engagement device having a pivotal support arm supported on the car door so as to be rotatable about a portion between the floating support arm connection portion. The method according to claim 5, The center of rotation of the pivot support arm, the first engagement member connection portion and the second engagement member connection portion are disposed at the same position in the vertical direction, The rotation center of the pivot support arm, the first floating support arm connecting portion and the first engagement member connecting portion constitute an isosceles triangle having the first floating support arm connecting portion as a vertex, And a center of rotation of the pivot support arm, the second floating support arm connection portion, and the second engagement member connection portion form an isosceles triangle with the second floating support arm connection portion as a vertex. The method according to claim 5, An elevator door engagement device, further comprising a guide mechanism for limiting the movement of the first and second engagement members in a horizontal direction. The method according to claim 1, Each of the interlocking link mechanism, A pair of first floating support arms each including a first engagement member connecting portion rotatably connected to the first engagement member, the first engagement member connected to the first engagement member at the same position; A pair of second floating support arms each including a second engagement member connection portion rotatably connected to the second engagement member, and connected to the second engagement member at the same position; and A first floating support arm connecting portion rotatably connected to the first floating support arm and a second floating supporting arm connecting portion rotatably connected to the second floating supporting arm, respectively, the first floating supporting arm connecting portion and the An elevator door engagement device which is supported by the car door so as to be rotatable about a portion between the second floating support arm connection portion and has a pair of pivot support arms that cross each other.

Images