JP2013256358A - Apparatus for preventing elevator from moving with its door opened - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for preventing an elevator from moving with its door opened, configured to be easily added to an existing elevator without remodeling an existing device or replacing an existing member, and to reduce renewal cost.SOLUTION: An apparatus 30 for preventing an elevator from moving with its door opened includes: a pair of attachment brackets 31 attached to an upper end side and a lower end side of a back face of a doorstop side stud 20; a pair of first and second links 32 and 35 attached to the attachment brackets 31; a pair of driving arms 33 arranged so as to extend from the first link 32 and so that tips thereof extend from an upper end side and a lower end side of a doorstop face 20a of the doorstop side stud 20; a separating frame 39 having both ends coupled to the second link 35 and supported to extend in a hoisting direction of an elevator car, and transmitting displacement of the driving arms 33 through the first and second links 32 and 35, to move between a storage position and a door opened traveling preventing position; and a pair of compression springs 38 which bias the driving arms 33 in a door opening direction.

Description

  The present invention relates to an elevator door-opening travel prevention device that mechanically prevents a car from traveling while the door is open.

  A conventional elevator door-opening travel prevention device is rotatably attached to a car door, and is located between a storage position stored on the door side of the car and a door-opening travel prevention position that opens and protrudes on the door side of the landing. And a link mechanism connecting the movable vane of the car door and the door opening travel blocking plate, and the displacement of the movable vane when the door opening operation starts is opened by the link mechanism. When the door is open from the start of the door-opening operation to the door-opening state, the door-opening travel-preventing plate is positioned at the door-opening travel-preventing position to mechanically prevent the car from traveling while the door is open. (For example, refer to Patent Document 1).

  In addition, another conventional elevator door-opening travel prevention device includes a landing sill in which a stopper engaging portion that opens to the hoistway side is recessed, a car door cam that is fixedly installed at an end portion of the door side of the car door, and a car. A vertical shaft portion penetrating the sill, a stopper arm fixed to the lower end portion of the shaft portion and engaged with the stopper engaging portion by rotation of the shaft portion, and a lever portion fixed to the upper end portion of the shaft portion And a car side roller that is attached to the end of the lever portion, engages with the car door cam, and displaces in the thickness direction of the car door when the door opening operation starts and ends. In conjunction with the displacement of the car-side roller in the thickness direction of the car door at the start, the shaft rotates and the stopper arm engages with the stopper engaging part, and the car runs mechanically while the door is open. (See, for example, Patent Document 2).

JP 2008-201494 A JP 2009-203068 A

  The conventional elevator door-opening travel prevention device described in Patent Document 1 requires a link mechanism that transmits the displacement of the movable vane to the door-opening travel prevention plate. Therefore, if an existing elevator is to be updated to an elevator with a door-opening travel prevention device, the existing movable vane (door-closing engagement device) cannot be used as it is, and the door-closing engagement device must be modified. Therefore, the construction becomes large and the renewal cost becomes high.

  Moreover, in the conventional elevator door-opening travel prevention device described in Patent Document 2, it is necessary to recess the stopper engaging portion in the landing sill and attach the transmission member including the shaft portion and the lever portion to the car sill. Therefore, if an existing elevator is to be updated to an elevator with a door-opening travel prevention device, it is necessary to replace the existing landing sill and car sill, and the construction becomes large and the renewal cost increases.

  The present invention has been made to solve such problems, and does not require modification of existing equipment or replacement of existing members, can be easily attached to existing elevators, and can reduce the renewal cost. The object is to obtain a travel prevention device.

  The elevator door-opening travel prevention device according to the present invention is an elevator door-opening travel prevention device in which the car door is a single door, and is provided on the upper end side and the lower end side of the rear side vertical frame of the car doorway frame. A pair of attachments attached, a pair of link mechanisms attached to each of the pair of attachments, and a pair of link mechanisms supported by each of the pair of link mechanisms, the tip of which is a door contact surface of the door contact side vertical frame The door is extended from the upper end side and the lower end side, and engages with the door closing side end surface of the car door when the door opening operation starts and when the door closing operation ends, and the door opening and closing direction of the car door A pair of operating arms that are displaced in the door opening / closing direction in conjunction with the movement of the door, and both ends of the pair of link mechanisms connected to each other, supported so as to extend in the up-and-down direction of the car, and the pair of operations The pair of link mechanisms whose arm displacement is the above Between the storage position on the back side of the door-contacting vertical frame and the door-opening travel prevention position on the door side of the landing where at least a part overlaps the landing component when viewed from both directions of the car ascending / descending direction. There are provided a separation frame movably disposed therebetween, and a pair of push springs for urging each of the pair of operating arms in the door opening direction. At the start of the door opening operation of the car door, the pair of operating arms are displaced in the door opening direction in conjunction with the movement of the car door in the door opening direction, and the partition frame is moved from the storage position to the door. When the car door is closed, the pair of operating arms are displaced in the door closing direction in conjunction with the movement of the car door in the door closing direction. It is moved from the door-opening travel prevention position to the storage position.

  According to the present invention, since the structural member is configured to be supported by the door-holding side vertical frame of the car doorway frame via the attachment metal, the upper end side and the lower end side of the door-contacting surface of the door-holding side vertical frame The door opening travel prevention device can be attached to the existing elevator by simply drilling the hole and forming a through hole in which the tip of the operating arm extends. Therefore, it is not necessary to modify the existing device or replace the existing member, and the renewal cost can be reduced.

1 is a cross-sectional view schematically showing the configuration of an elevator according to Embodiment 1 of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view illustrating a configuration of an elevator door opening travel blocking device according to Embodiment 1 of the present invention. It is a principal part cross-sectional view explaining the accommodation state of the door opening travel prevention apparatus of the elevator which concerns on Embodiment 1 of this invention. It is a principal part cross-sectional view explaining the door-opening travel blocking state of the door-opening travel blocking device for an elevator according to Embodiment 1 of the present invention. It is a longitudinal cross-sectional view which shows the door opening travel prevention state of the door opening travel prevention apparatus of the elevator which concerns on Embodiment 1 of this invention. It is a figure explaining the door opening travel prevention cancellation operation | movement in the door opening travel prevention device of the elevator which concerns on Embodiment 2 of this invention. It is a cross-sectional view which shows typically the structure of the elevator which concerns on Embodiment 3 of this invention. It is a perspective view explaining the structure of the door opening travel prevention apparatus of the elevator which concerns on Embodiment 3 of this invention. It is a top view explaining operation | movement of the door opening travel prevention apparatus of the elevator which concerns on Embodiment 3 of this invention. It is a longitudinal cross-sectional view which shows the accommodation state of the door opening travel prevention apparatus of the elevator which concerns on Embodiment 3 of this invention. It is a longitudinal cross-sectional view which shows the door open travel prohibition state of the door open travel prohibition apparatus of the elevator which concerns on Embodiment 3 of this invention. It is a perspective view explaining the structure of the door opening travel prevention apparatus of the elevator which concerns on Embodiment 4 of this invention. It is a top view explaining the door open travel blocking release operation in the door open travel blocking device of the elevator according to Embodiment 4 of the present invention.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of an elevator door-opening travel prevention device according to the invention will be described with reference to the drawings.

Embodiment 1 FIG.
1 is a cross-sectional view schematically showing the configuration of an elevator according to Embodiment 1 of the present invention, and FIG. 2 is a perspective view for explaining the configuration of an elevator door opening travel prevention device according to Embodiment 1 of the present invention. FIG. 3 is a transverse cross-sectional view for explaining the storage state of the elevator door-opening travel prevention apparatus according to Embodiment 1 of the present invention, and FIG. 4 is an elevator door-opening travel inhibition according to Embodiment 1 of the present invention. FIG. 5 is a longitudinal sectional view showing the door-opening travel prevention state of the elevator door-opening travel prevention device according to Embodiment 1 of the present invention. Here, the cross-sectional view is a cross-sectional view cut along a horizontal plane, and the vertical cross-sectional view is a cross-sectional view cut along a vertical plane.

  1 and 5, the car 1 has a doorway constituted by a car doorway frame 2 in the front in the depth direction. The car door 3 is disposed so as to be able to travel in the frontage direction over a door hanger 4 with a roller attached to the upper edge of the car door 3 and a door rail 6 fixed to a door closing device girder 5 attached to the upper part of the doorway. ing. The car door 3 is a two-piece single door that opens and closes the doorway by driving a door closing device (not shown) supported by the door closing beam 5. A car sill 7 is fixed to the car floor 8 so as to extend in the direction of the entrance and exit, and guides the lower end of the car door 3 when the car door 3 is opened and closed. Here, the frontage direction is the opening / closing direction of the car door 3. Further, the depth direction is a direction orthogonal to the front direction of the car 1, with the entrance / exit side being the front and the side opposite to the entrance / exit being the back.

  The platform 11 has an entrance / exit formed by a platform entrance / exit frame 12. The landing door 13 is arranged so that it can run on a door hanger 14 with a roller attached to the upper edge of the landing door 13 on a door rail 16 fixed to a landing door closing device girder 15 attached to the upper part of the doorway. . The door 13 of the landing opens and closes the doorway in conjunction with the opening / closing operation of the car door 3. A hanger case 17 is attached to the hoistway side of the landing door closing device girder 15 and closes the opening of the landing door closing device girder 15 on the hoistway side. A landing threshold 18 is fixed to the landing floor 19 so as to extend in the direction of the entrance, and guides the lower end of the landing door 13 when the landing door 13 is opened and closed.

  A door-open travel prevention device 30 is installed in the door contact side vertical frame 20 of the car doorway frame 2. The car 1 is guided by the guide rail 9 and is disposed in the hoistway 10 so as to be lifted and lowered.

Next, the configuration of the door-opening travel prevention device 30 will be described with reference to FIG.
The door opening travel prevention device 30 includes a separation frame 39 movably disposed between a storage position on the back side of the door contact side vertical frame 20 and a door opening travel prevention position on the door 13 side of the landing, A pair of actuating arms 33 that engage with the door closing side end face of the car door 3 at the start and end of door closing and are displaced in the door opening / closing direction in conjunction with the movement of the car door 3 in the door opening / closing direction; The displacement of the actuating arm 33 in the door opening direction is transmitted to the frame 39 at a distance to move the distance frame 39 from the storage position to the door opening travel prevention position, and the displacement of each actuating arm 33 in the door closing direction is transmitted to the frame 39 at a distance. A pair of link mechanisms that move the frame 39 from the door-opening travel prevention position to the storage position, a pair of push springs 38 that urge each operating arm 33 in the door-opening direction, A pair of attachments 31 that are fastened and fixed to the upper end side and the lower end side to hold the operating arm 33 and the link mechanism. , And a.

  The attachment metal 31 is formed by bending a steel plate, and extends perpendicularly from the both ends of the base portion 31a and the base portion 31a in the same direction at right angles from the tips of the first and second attachment arms 31b and 31c and the first attachment arm 31b. A support arm 31d extending to the second mounting arm 31c side, and a spring receiving portion 31e extending from the support arm 31d in a direction orthogonal to the extending direction of the first mounting arm 31b and the extending direction of the support arm 31d. It is formed in the substantially U shape which has. The attachment metal 31 has the support arm 31d directed to the back surface of the door stop side vertical frame 20, and the first attachment arm 31b is fastened to the side surface portion of the car side wall 21 together with the side surface portion of the door stop side vertical frame 20 in the depth direction rear side. The second mounting arm 31c is fastened and fixed to the front side wall portion in the depth direction of the door stop-side vertical frame 20, and is disposed on the back surfaces of the upper end side and the lower end side of the door stop-side vertical frame 20, respectively. .

  One end of the first link 32 is rotatably attached to the support arm 31d around the vertical axis 23a. The actuating arm 33 extends forward in the depth direction from the side of the first link 32, and the tip end side thereof is bent and formed in each of the upper end side and the lower end side of the door contact surface 20a of the door stop side vertical frame 20. It extends from the through hole 22. A door stop rubber 34 is fixed to the extending end of the operating arm 33 from the through hole 22. The second link 35 is attached to the other end of the first link 32 so that one end of the second link 35 can rotate around the vertical axis 23b. The guide member 36 is manufactured in a cylindrical shape, is fixed to the base portion 31a, and the second link 35 is inserted to guide the movement of the second link 35. The pressing spring 38 is contracted between the spring receiving portion 31 e and the spring receiving plate 37 extending from the first link 32 toward the car side wall 21 so that the tip of the operating arm 33 extends from the through hole 22. The first link 32 is energized. The partition frame 39 is formed in a pipe shape having a slightly shorter length than the car door 3, and both ends are supported by the other end of the second link 35 and extend in the ascending / descending direction (vertical direction) of the car 1. Yes. The buffer rubber 40 is attached to both ends of the separation frame 39.

  The door-opening travel prevention device 30 configured in this way is configured to be mirror-symmetric with respect to a horizontal plane passing through the center in the length direction of the separation frame 39. Moreover, the 1st link 32 and the 2nd link 35 comprise each link mechanism.

  In order to attach the door-opening travel prevention device 30 to an existing car, first, the first link 32, the second link 35, the guide member 36 and the pressing spring 38, which are integrally formed with the operating arm 33, are attached to the attachment metal 31. Assemble and assemble a pair of link units. Then, the through holes 22 are formed by drilling the upper and lower door contact surfaces 20a of the door contact side vertical frame 20. Next, the distal end of the operating arm 33 is extended from the through hole 22, and the first mounting arm 31 b is fastened and fixed to the side surface portion of the car side wall 21 along with the side surface portion in the depth direction rear side of the door stop side vertical frame 20. The two attachment arms 31c are fastened and fixed to the side wall portion in the depth direction of the door stop-side vertical frame 20, and the link unit is installed on the back of the door stop-side vertical frame 20 on the upper end side and the lower end side. Next, both ends of the separation frame 39 are connected to the other end of the second link 35, and the attachment of the door-opening travel prevention device 30 to the existing car is completed.

  Note that the door-opening travel prevention device 30 may be assembled before being attached, and the assembled door-opening travel prevention device 30 may be attached to an existing car.

Next, the operation of the door opening travel blocking device 30 configured as described above will be described.
First, when the car door 3 starts its closing operation and closes to close to close, the door closing side end surface of the car door 3 comes into contact with the door stop rubber 34. Then, the door closing force of the car door 3 is transmitted to the operating arm 33 via the door stop rubber 34. As a result, the first link 32 rotates counterclockwise around the vertical axis 23a against the urging force of the push spring 38, as shown in FIG. When the car door 3 comes into contact with the door contact surface 20a of the door contact side vertical frame 20 and the car door 3 is fully closed, the rotation of the first link 32 around the vertical shaft 23a is stopped. Due to the counterclockwise rotation of the first link 32 around the vertical axis 23a, the second link 35 connected to the other end of the first link 32 is guided by the guide member 36 and moved upward in FIG. It moves and the gap frame 39 retracts to the storage position. The partition frame 39 retracted to the storage position does not overlap with the landing site components when viewed from both directions of the car 1, and the car 1 can be raised and lowered. Further, the partition frame 39 is located between the upper and lower ends of the car door 3 when viewed from the horizontal direction.

  Then, when the car 1 is landed and the car door 3 starts the door opening operation, the first link 32 rotates clockwise around the vertical shaft 23a by the urging force of the push spring 38 in FIG. . By the clockwise rotation around the vertical axis 23a of the first link 32, the second link 35 connected to the other end of the first link 32 is guided by the guide member 36 and moved downward in FIG. To do. When the urging force of the pressing spring 38 is lost, the clockwise rotation around the vertical axis 23a of the first link 32 stops. Therefore, as shown in FIGS. 4 and 5, the separation frame 39 extends to the door 13 side of the landing and is located at the door-opening travel prevention position. As shown in FIGS. 4 and 5, at least a part of the separation frame 39 positioned at the door-opening travel prevention position is a landing component, that is, a landing door closed, when viewed from both directions in the up-and-down direction of the car 1. It overlaps with each of the device beam 15 (hanger case 17) and the landing threshold 18.

  Thus, even if the door 3 of the car is in the door opening operation and further in the door closing operation, if the door closing is not completed, the partition frame 39 is held at the door opening travel preventing position. Therefore, even if the car 1 tries to move up and down for some reason, the separation frame 39 hits the hanger case 17 or the landing sill 18 and the car 1 is lifted mechanically and forcibly. Further, the collision between the separation frame 39 and the hanger case 17 or the landing sill 18 is immediately after the start of raising / lowering of the car 1, and since the inertial force is small, the occurrence of damage to the separation frame 39, the hanger case 17 or the landing sill 18 is suppressed. Is done.

  Thus, according to the first embodiment, even when the car door 3 is in the door opening operation and further in the door closing operation, if the door closing is not completed, the car 1 is caused for some reason. Even if it is going to move up and down, the raising and lowering of the car 1 is mechanically and forcibly blocked, so that it is possible to reliably prevent secondary accidents caused by the raising and lowering of the car 1 with the car door 3 open. it can.

Since the door stop rubber 34 is attached to the extended end of the operating arm 33 from the through hole 22, the car door 3 and the operating arm 33 do not directly contact each other, and the door closing side end surface of the car door 3 is damaged. Generation | occurrence | production is suppressed and generation | occurrence | production of a collision sound is suppressed.
Since the shock absorbing rubber 40 is attached to both ends of the separation frame 39, the impact at the time of collision between the separation frame 39 and the hanger case 17 or the landing sill 18 is mitigated, and the separation frame 39, the hanger case 17 or the landing sill 18 Damage generation is suppressed.

  In the door opening travel prevention device 30, the first link 32, the operating arm 33, the second link 35, the guide member 36, the pressing spring 38, and the separation frame 39 are arranged on the upper end side and the lower end side on the back surface of the door contact side vertical frame 20. It is comprised so that it may be supported by the attached attachment 31. Accordingly, the door opening travel prevention device 30 can be obtained simply by drilling the door contact surface 20a of the door stop side vertical frame 20 to form the through hole 22 and fastening and fixing the attachment metal 31 to the door stop side vertical frame 20. Can be attached to the existing car 1. Therefore, it is not necessary to modify the existing device or replace the existing member, and it can be easily attached to the existing elevator, and the renewal cost can be reduced.

  In the first embodiment, the biasing force of the pressing spring 38 is lost, the rotation of the first link 32 around the vertical shaft 23a is stopped, and the frame 39 is positioned at the door-opening travel prevention position. However, for example, a stopper is provided on the base 31a, the spring receiving plate 37 comes into contact with the stopper, the rotation of the first link 32 around the vertical shaft 23a is stopped, and the separation frame 39 is positioned at the door-opening travel prevention position. You may do it. In this case, the urging force of the pressing spring 38 acts to bring the spring receiving plate 37 into contact with the stopper, and the gap frame 39 is stably held at the door-opening travel preventing position.

In the first embodiment, the operating arm 33 is integrally extended from the side of the first link 32 and configured in a substantially T shape. However, the operating arm is integrated from one end of the first link. You may comprise in the substantially letter-shaped shape extended in this. In this case, one end of the first link with the operating arm extended may be attached to the base 31a so as to be rotatable around the vertical axis.
In Embodiment 1 described above, a two-piece single door is described, but the car door 3 is not limited to a two-piece single door, and may be, for example, a single piece single door or a three piece single door.

Embodiment 2. FIG.
FIG. 6 is a diagram for explaining a door-opening travel blocking release operation in the elevator door-opening travel blocking device according to Embodiment 2 of the present invention.

In FIG. 6, the door-open travel prevention release device 45 is formed in a flat plate shape that is orthogonal to the axis of the lock portion 46 and a lock portion 46 that is installed on the back of each of the upper end side and the lower end side of the door contact side vertical frame 20. A lid 47, one end of which is fixed to the inner cylinder of the lock portion 46, and a key 48 that is inserted into the lock portion 46 and rotates the lid 47 around the axis of the lock portion 46 together with the inner cylinder; It has. And the notch 49 is formed in the door stop side vertical frame 20 so that the lid | cover 47 which rotates to the surroundings of the axial center of the lock part 46 can enter / exit. Further, the lid 47 rotates around the axis of the lock portion 46 and closes the through-hole 22 through which the tip of the operating arm 33 extends when extending from the notch 49 to the doorway 20a. The mouth is configured to be possible.
In addition, this Embodiment 2 is comprised similarly to the said Embodiment 1 except the point provided with the door opening travel prevention cancellation device 45 and the notch 49. FIG.

  In the second embodiment, in the normal state, the lid 47 is positioned on the back surface of the door-stop side vertical frame 20 as shown in FIG. Therefore, when the car door 3 is fully closed, the partition frame 39 is held in the storage position. Even when the car door 3 is in the door opening operation and further in the door closing operation, if the door closing is not completed, the partition frame 39 is held at the door opening travel prevention position.

  Then, as shown in FIG. 6A, when the worker is in the door open state, the operator pushes the tip of the operating arm 33 with one hand from the through hole 22 to the back side of the door-contacting side vertical frame 20, and the key 48. Is inserted into the lock 46. Then, as shown in FIG. 6C, the key 48 is turned, the lid 47 is pulled out from the notch 49, and the through hole 22 is closed. Thereby, the movement of the operating arm 33 that attempts to extend from the through hole 22 by the urging force of the push spring 38 is prevented. At this time, the operating arm 33 is in the same position as in the fully closed state of the door, the partition frame 39 is held in the storage position, and the car 1 can be raised and lowered. That is, the door-opening travel prevention by the door-opening travel prevention device 30 in the door-open state is canceled.

  According to the second embodiment, the door-opening travel prevention device 45 can cancel the door-opening travel prevention by the door-opening travel prevention device 30, so that the car 1 can be lifted and lowered while the car door 3 is open. The required maintenance inspection work or fire-fighting operation can be made possible.

Embodiment 3 FIG.
7 is a transverse sectional view schematically showing the configuration of an elevator according to Embodiment 3 of the present invention, and FIG. 8 is a perspective view for explaining the configuration of an elevator door-opening travel prevention device according to Embodiment 3 of the present invention. FIG. 9 is a top view for explaining the operation of the elevator door opening travel blocking apparatus according to Embodiment 3 of the present invention. FIG. 9 (a) shows the door fully closed, and FIG. 9 (b). Indicates the state at the start of the door opening operation. FIG. 10 is a longitudinal sectional view showing a stowed state of an elevator door-opening travel prevention apparatus according to Embodiment 3 of the present invention, and FIG. 11 shows door opening of the elevator door-opening travel prevention apparatus according to Embodiment 3 of the present invention. It is a longitudinal cross-sectional view which shows a driving | running | working prevention state.

  7, 10, and 11, the car 1 </ b> A has a doorway constituted by a car doorway frame 2 </ b> A in the front in the depth direction. The car door 3A is disposed so as to be able to travel in the frontage direction by passing the door hanger 4A with a roller attached to the upper edge of the car door 3A to the door rail 6A fixed to the door closing device girder 5A attached to the upper part of the doorway. ing. The car door 3A is a two-piece single door that opens and closes the doorway by driving a door closing device (not shown) supported by the door closing device girder 5A. Further, the car sill 7A is fixed to the car floor 8A so as to extend in the entrance direction, and guides the lower end of the car door 3A when the car door 3A is opened and closed. A door opening travel prevention device 50 is installed in the door pocket of the car doorway frame 2A.

  The landing 11A has an entrance / exit formed by a landing entrance / exit frame 12A. The landing door 13A is disposed so as to be able to run on a door rail 16A fixed to a landing door closing device girder 15A attached to an upper portion of the doorway with a roller hanger 14A attached to the upper edge of the door. . The landing door 13A opens and closes the doorway in conjunction with the opening and closing operation of the car door 3A. A hanger case 17A is attached to the hoistway side of the landing door closing device girder 15A and closes the opening on the hoistway side of the landing door closing device girder 15A. A landing sill 18A is fixed to the landing floor 19A so as to extend in the entrance direction, and guides the lower end of the landing door 13A when the landing door 13A is opened and closed.

  As shown in FIG. 8, the door opening travel prevention device 50 includes a separation frame 39 movably disposed between a storage position in the door pocket and a door opening travel prevention position on the door 13 </ b> A side of the landing, The door is disposed on the upper and lower sides, and on the front side in the depth direction, and engages with the door 3A of the car when the door opening operation starts and when the door closing operation ends, and the door thickness direction (cage depth direction) A pair of rollers 51 as the engaging members that are displaced to each other, the upper end side and the lower end side in the door pocket, and the front side in the depth direction, and the displacement of each roller 51 forward in the depth direction is transmitted to the frame 39 across the gap. Then, the frame 39 is moved from the storage position to the door-opening travel prevention position, and the displacement of each roller 51 in the rearward direction in the depth direction is transmitted to the frame 39 and the space 39 is moved from the door-opening travel prevention position to the storage position. The pair of link mechanisms to be moved and the rollers 51 are changed backward in the depth direction. As shown in the figure, a pair of push springs 38 for urging each link mechanism, a mounting bracket 52 fastened and fixed to the door closing device girder 5, and a fastening mechanism fixed to the mounting bracket 52 and the car sill 7A. And a pair of attachment metal 53 for holding.

The mounting bracket 52 is formed by bending a rectangular flat plate-shaped steel plate, and includes a base 52a and mounting arms 52b and mounting portions 52c extending in opposite directions at right angles from both ends of the base 52a. The mounting bracket 52 is mounted such that the mounting arm 52b is fastened and fixed to the door closing device girder 5A, and the mounting portion 52c is positioned on the upper end side on the door closing side in the door pocket and on the front side in the depth direction.
The mounting metal 53 is a rectangular flat plate-like steel plate, and is fastened and fixed so as to face each other on the lower surface of the mounting portion 52c of the mounting bracket 52 and the upper surface of the car sill 7A. And it is located in the lower end side and the depth direction front side.

  One end of the first link 54 is pivotally attached to the end of the door 53 on the back side in the depth direction around the vertical axis 55a and extends to the door open side. The roller 51 is rotatably attached to a substantially central portion of the first link 54 around the vertical shaft 55b, and is configured to engage with the car door 3A at the start of the door opening operation and at the end of the door closing operation. . One end of the second link 56 is fixed to the other end of the first link 54. The pressing spring 38 is contracted between a spring receiving plate 57 fixed to the attachment metal 53 and the first link 54, and urges the first link 54 to press the roller 51 against the car door 3A. Yes.

  The separation frame 39 is supported by the other end of the second link 56 at both ends, and extends in the car ascending / descending direction (vertical direction). The buffer rubber 40 is attached to both ends of the separation frame 39. Further, when the stopper 58 protrudes from the attachment metal 53, the car door 3A is closed, and the engagement between the roller 51 and the car door 3A is released, the first link 54 comes into contact with the stopper 58. The separation frame 39 is held in the storage position.

  The door-opening travel prevention device 50 configured as described above is configured to be mirror-symmetric with respect to a horizontal plane passing through the center in the length direction of the separation frame 39 except for the mounting bracket 52. Further, the first link 54 and the second link 56 constitute a link mechanism.

  In order to attach the door-opening travel prevention device 50 to an existing car, first, the first link 54, the roller 51, the second link 56, the push spring 38, the spring receiving plate 57, and the like are incorporated in the attachment metal 53. Then, the attachment metal 53 is fixed to the attachment portion 52 c, and the attachment arm 52 b of the attachment fitting 52 is fastened and fixed to the door closing device girder 5. Further, the attachment metal 53 in which the first link 54, the roller 51, the second link 56, the push spring 38, the spring receiving plate 57, and the like are incorporated is fastened and fixed to the car sill 7A. Next, both ends of the separation frame 39 are connected to the other end of the second link 56, and the installation of the door-opening travel prevention device 50 to the existing car is completed.

  Note that the door-opening travel prevention device 50 may be assembled prior to attachment, and the assembled door-opening travel prevention device 50 may be attached to an existing car.

Next, the operation of the door-opening travel prevention device 50 configured as described above will be described.
First, if the car door 3A is fully closed, the engagement between the car door 3A and the roller 51 is released as shown in FIG. Therefore, the first link 54 rotates about the vertical axis 55a counterclockwise in FIG. Then, the first link 54 comes into contact with the stopper 58 to stop the rotation around the vertical shaft 55a, and the second link 56 connected to the other end of the first link 54 is an upper part in FIG. 9A. The frame 39 is retracted to the storage position. The partition frame 39 retracted to the storage position does not overlap with the landing component parts when viewed from both directions of the car 1A, and the car 1A can be raised and lowered. Further, as shown in FIG. 10, the separation frame 39 is located between the upper and lower ends of the car door 3 </ b> A when viewed from the horizontal direction.

  Next, when the car 1A is landed and the car door 3A starts the door opening operation, the end of the car door 3A in the door opening direction (the door side end) engages with the roller 51. Then, when the car door 3A continues the door opening operation, the roller 51 is displaced so as to ride on the wall surface in the depth direction from the door bag side end face of the car door 3A. That is, the roller 51 is displaced to one side in the thickness direction of the car door 3A, that is, forward in the depth direction. As a result, the first link 54 rotates clockwise in FIG. 9A. By the clockwise rotation of the first link 54 around the vertical axis 55a, the second link 56 connected to the other end of the first link 54 moves downward in FIG. 9A. Then, when the roller 51 rides on the wall surface in the depth direction of the car door 3A, the clockwise rotation around the vertical axis 55a of the first link 54 stops. Therefore, as shown in FIG. 9B and FIG. 11, the separation frame 39 extends to the door 13 </ b> A side of the landing and is located at the door-open travel prevention position. As shown in FIG. 9 (b) and FIG. 11, at least a part of the separation frame 39 located at the door-opening travel prevention position is a landing component as seen from both directions in the ascending / descending direction of the car 1A. That is, it overlaps with each of the landing door closing device girder 15A (hanger case 17A) and the landing threshold 18A.

  Thus, even if the door 3A of the car is in the door opening operation and further in the door closing operation, if the door closing is not completed, the partition frame 39 is held at the door opening travel preventing position. Therefore, even if the car 1A tries to move up and down for some reason, the separation frame 39 hits the hanger case 17A or the landing sill 18A, and the car 1A is mechanically and forcibly prevented from moving up and down.

  Therefore, also in this Embodiment 3, the secondary accident by raising / lowering the cage | basket | car 1A with the cage door 3A opened can be prevented reliably.

  The door opening travel prevention device 50 is attached to the door closing device frame 5A so that the mounting bracket 52 extends the mounting portion 52c to the upper end side in the door pocket, and the mounting metal 53 is attached to the mounting portion 52c and the car sill 7A. It is attached so as to face each other. The first link 54, the roller 51, the second link 56, the pressing spring 38, and the separation frame 39 are configured to be supported by the attachment metal 53. Therefore, the door-opening travel prevention device 50 can be attached to the existing car 1A simply by attaching the mounting bracket 52 to the door closing device girder 5A and mounting the mounting bracket 53 to the mounting portion 52c of the mounting bracket 52 and the car sill 7A. it can. Therefore, also in the third embodiment, it is not necessary to modify the existing device or replace the existing member, and it can be easily attached to the existing elevator, and the renewal cost can be reduced.

  In addition, in the said Embodiment 3, although the 2 sheet | seat center hinge door is demonstrated, the door 3A of a cage | basket is not limited to a 2 sheet | seat center swing door, For example, a 4 sheet | seat center swing door may be sufficient.

Embodiment 4 FIG.
12 is a perspective view for explaining the configuration of an elevator door-opening travel prevention apparatus according to Embodiment 4 of the present invention, and FIG. 13 is a door-opening travel of the elevator door-opening travel prevention apparatus according to Embodiment 4 of the present invention. FIGS. 13A and 13B are top views for explaining the blocking release operation, in which FIG. 13A shows the door-opening travel blocking state, and FIG.

  In FIG. 12, the lock portion 60 is attached to the door closing side of the attachment metal 53 and in the vicinity of the corner portion on the front side in the depth direction, and the extending portion 60a of the inner cylinder has a rectangular cross section. The board 61 is manufactured in the shape of a rectangular flat plate equivalent to the attachment metal 53, is fastened and fixed to the car sill 7A, and is located on the lower end side on the door closing side in the door pocket and on the front side in the depth direction. A hole 62 in which the extending portion 60a is accommodated is formed in the vicinity of the corner portion on the door closing side of the substrate 61 and on the front side in the depth direction. The notch 62a is shorter than the long side of the rectangular cross section of the extending portion 60a and longer than the short side, and has a circular arc shape centering on the axis of the pin 63 described later. It is formed so as to reach the front side wall. The mounting metal 53 is placed on the upper surface of the substrate 61 with the extended portion 60a accommodated in the hole 62, and is a pin with the door opening side and the corner near the front in the depth direction as the substrate 61 and the axial direction as the vertical direction. It is connected so as to be rotatable around 63.

  The mounting bracket 52A is formed by bending a rectangular flat plate-shaped steel plate, and includes a base 52a and mounting arms 52b and mounting portions 52d extending at right angles from both ends of the base 52a in opposite directions. In the mounting bracket 52A, the mounting arm 52b is fastened and fixed to the door closing device girder 5A, and the mounting portion 52d is positioned at the upper end side of the door closing side in the door pocket and the front side in the depth direction, and is fastened and fixed to the car sill 7A. The substrate 61 is opposed. A hole 62 is formed in the vicinity of the corner on the door closing side of the mounting portion 52d and on the front side in the depth direction. The notch 62a has an arcuate hole shape centered on the axis of the pin 63, and is formed from the hole 62 to the side wall in the depth direction of the mounting portion 52d. The attachment metal 53 has the extended portion 60a accommodated in the hole 62 and is superimposed on the lower surface of the attachment portion 52d. The door opening side and the front corner in the depth direction are near the attachment portion 52d, and the axial direction is the vertical direction. The pin 63 is connected to be rotatable.

Here, the attachment metal 53 is connected to the board 61 and the attachment part 52d in the vicinity of the corner on the door opening side and in the depth direction so as to be rotatable around a pin 63 whose axial direction is the vertical direction. 62 is formed in the door closing side of the base plate 61 and the mounting portion 52d and in the vicinity of the front corner in the depth direction, and the lock portion 60 is attached to the mounting metal 53 so that the extended portion 60a is accommodated in the hole 62. The notch 62a has a circular hole shape centered on the axis of the pin 63 and is formed so as to extend from the hole 62 to the side wall in the depth direction of the base plate 61 and the mounting portion 52d. It is composed.
Other configurations are the same as those in the third embodiment.

  In the door-opening travel prevention device 50A according to the fourth embodiment, in the normal state, the extended portion 60a of the lock portion 60 is cut out in the long side direction of the rectangular cross section as shown in FIG. It is orthogonal to the hole direction of 62a, and rotation around the pin 63 of the attachment metal 53 is prevented. Therefore, even when the car door 3A is in the door opening operation, and further in the door closing operation, if the door closing is not completed, the partition frame 39 is held at the door opening travel prevention position.

  Then, as shown in FIG. 13B, the worker inserts the key 64 into the lock portion 60 and rotates the key 64 by 90 ° when the door is in the open state. Thereby, the long side direction of the rectangular cross section of the extension part 60a corresponds with the hole direction of the notch 62a. Therefore, the worker holds the key 64 and rotates the attachment 53 around the pin 63 counterclockwise. By the counterclockwise rotation around the pin 63 of the attachment metal 53, the first link 54 is rotated counterclockwise around the vertical shaft 55a by the urging force of the push spring 38. Then, the first link 54 comes into contact with the stopper 58, and the counterclockwise rotation around the vertical shaft 55a is stopped. Thereby, the separation frame 39 moves from the door-opening travel prevention position to the storage position, is held at the storage position, and the car 1A can be raised and lowered. That is, the door-open travel prevention by the door-open travel prevention device 50A in the door-open state is released.

  According to the fourth embodiment, since the door-opening travel prevention by the door-opening travel prevention device 50A can be canceled, maintenance inspection work or fire-fighting operation that requires the car 1A to be moved up and down while the car door 3A is opened is used. Can be made possible.

  1,1A car, 2 car doorway frame, 3,3A car door, 5A door closing device frame, 7A car sill, 13, 13A landing door, 17, 17A hanger case (component of landing), 18, 18A landing sill (Platform component), 20 door-end vertical frame, 20a door stop surface, 21 first link (link mechanism), 31 mounting bracket, 33 actuating arm, 35 second link (link mechanism), 38 push spring, 39 Frame, 45 door open travel prevention release device, 51 roller (transmission member), 52 mounting bracket, 53 mounting metal, 54 first link (link mechanism), 56 second link (link mechanism), 60 lock (door open travel) Blocking release device), 61 Substrate (door-opening travel blocking release device), 62 hole (door-opening travel blocking release device), 63 pin (door-opening travel blocking release device), 64 keys (door-opening travel blocking release) Location).

Claims (3)

An elevator door-opening travel prevention device in which the car door is a single door,
A pair of attachments attached to the upper end side and the lower end side of the rear side of the door contact side vertical frame of the car doorway frame;
A pair of link mechanisms attached to each of the pair of attachments;
Supported by each of the pair of link mechanisms, the tip is disposed so as to extend from the upper end side and the lower end side of the door contact surface of the door contact side vertical frame, and the door opening operation starts and the door closing operation ends. A pair of operating arms that engage with the door closing side end face of the car door at the time and are displaced in the door opening / closing direction in conjunction with the movement of the car door in the door opening / closing direction;
Both ends of the pair of link mechanisms are connected to each other and supported so as to extend in the up-and-down direction of the car, and the displacement of the pair of operating arms is transmitted via the pair of link mechanisms, and the door The rear side of the contact-side vertical frame is disposed so as to be movable between the storage position on the back side and at least a part of the door side opening prevention position on the landing side that overlaps with the landing component when viewed from both directions of the car ascending / descending direction. A separated frame,
A pair of push springs for urging each of the pair of operating arms in the door opening direction;
With
At the start of the door opening operation of the car door, the pair of operating arms are displaced in the door opening direction in conjunction with the movement of the car door in the door opening direction, and the partition frame travels from the storage position to the door opening. Moved to the blocking position,
At the end of the door closing operation of the car door, the pair of operating arms are displaced in the door closing direction in conjunction with the movement of the car door in the door closing direction, and the partition frame is moved from the door opening travel prevention position to An elevator door-opening travel prevention device that is moved to a storage position. An elevator door-opening travel prevention device in which the car door is a central door,
A mounting bracket attached to the door closing device frame and extending to the upper end side in the door pocket of the car doorway frame;
A pair of mounting brackets mounted to face each of the mounting bracket and the basket sill;
A pair of link mechanisms attached to each of the pair of attachments;
Attached to each of the pair of link mechanisms and engaged with the upper end side and the lower end side of the door-bag side end of the car door at the start of the door opening operation and the end of the door closing operation, and displaced in the depth direction of the car A pair of engaging members,
Both ends are connected to each of the pair of link mechanisms and supported so as to extend in the ascending / descending direction of the car, and the displacement of the pair of engagement members is transmitted via the pair of link mechanisms, The storage position on the door pocket side of the car entrance / exit frame and at least a part of the car are arranged so as to be movable between the door opening / closing prevention position on the door side of the landing overlapping with the landing component when viewed from both directions of the raising / lowering direction of the car. A separated frame,
A pair of push springs for urging the pair of link mechanisms so that the pair of engaging members are displaced rearward in the depth direction of the car;
With
At the start of the door opening operation of the car door, the pair of engaging members are displaced forward in the depth direction of the car in conjunction with the movement of the car door in the door opening direction, and the partition frame is in the storage position. Moved to the above-mentioned door-opening travel prevention position,
At the end of the door closing operation of the car door, the pair of engaging members are displaced rearward in the depth direction of the car in conjunction with the movement of the car door in the door closing direction, and the partition frame is opened. An elevator door-opening travel prevention device, wherein the elevator is moved from the travel prevention position to the storage position.   The door opening travel blocking release device for moving the partition frame from the door opening travel blocking position to the storage position and holding it in the storage position when the car door is opened. The elevator door-opening travel prevention device according to claim 1 or 2.

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