JP4854640B2 - Elevator landing plate support device - Google Patents

Description

  The present invention relates to an elevator landing plate support device, and more particularly to an elevator landing plate support device for mounting a hoistway device such as a landing plate in a hoistway.

  Conventionally, devices attached to a hoistway such as a landing plate have been fixed to the hoistway by bolts, clips or brackets. In particular, the landing plate is attached to a guide rail or the like and is detected by a landing device attached to the car and used for accurate landing of the car. Located close to the floor equipment.

  In such an elevator, when a long-period shaking occurs in a building due to a long-period earthquake or strong wind, a long object such as a main rope resonates and shakes greatly, and a landing plate installed near the wall in the hoistway May collide with equipment in the hoistway and cause damage or deformation. Since the landing plate is a plate-like member protruding into the hoistway, such deformation is likely to occur, and when the elevator is operated while being deformed, the deformed landing plate collides with the landing device and a new one is generated. Cause damage and increase damage.

  Patent Document 1 proposes an elevator hoistway device that detects a collision between a landing plate and a landing device with a detection switch and stops the operation of the elevator when such deformation occurs in the landing plate. Has been.

JP-A-6-255909

  In such a conventional elevator hoistway device, the deformation of the landing plate cannot be detected until the landing plate collides with the landing device and the detection switch is activated. For this reason, the landing device may be damaged, or the landing plate may collide with other equipment in the hoistway while the car is moving.

  If the deformation of the landing plate is not so large as to activate the detection switch and is not detected, the elevator will be operated with the deformation of the landing plate, and the subsequent collision or landing device will be operated. May cause inconvenient events such as inaccurate operation.

  Accordingly, an object of the present invention is to support a landing plate that protrudes and is installed in a hoistway, and when a main rope or the like collides, it is elastically deformed to absorb the impact and return to its original position or is attached. It is to provide an elevator landing plate support device that is deformed out of the movement path of the floor device and is elastically held in that position, and then does not collide with other elevator hoistway equipment. .

  According to the present invention, an elevator landing plate support device for supporting a landing plate mounted in an elevator hoistway, wherein one end is fixed to the landing plate and the other end extends from the landing plate. A shaft member having an axis parallel to the elevator car lift direction and a space portion that is fixed in the elevator hoistway and receives the shaft end of the shaft member, and the shaft end rotates around the axis. A receiving member that can be supported, a pressing unit that relatively elastically presses the shaft member and the receiving member, a cam provided between the pressed shaft member and the receiving member, and a cam; An elastic holding means that selectively and elastically holds the shaft member in at least two predetermined positions with respect to the metal receiving member. With the characteristics That the elevator landing plate supporting device is obtained.

  According to the elevator landing plate support device of the present invention, when the main rope or the like collides, it is elastically deformed to absorb the impact and return to the original position or even out of the moving path of the landing device. It is possible to obtain an effect that it can be deformed and elastically held at that position, and then prevented from colliding with a landing device or other elevator hoistway equipment.

Embodiment 1 FIG.
1 to 3 show an embodiment of an elevator landing plate support device according to the present invention, and FIG. 1 shows a landing plate and a landing device supported by using the elevator landing plate support device according to the present invention. 2 is a schematic top view showing a relationship in a normal operation state, FIG. 2 is a schematic plan view showing a state in which the landing plate is supported by the elevator landing plate support device shown in FIG. 1, and FIG. 3 is abnormal. It is a schematic top view similar to FIG. 1 showing the relationship between the landing plate and the landing apparatus in the operating state.

  1 to 3, a car 1 that moves up and down in an elevator hoistway is provided with a landing device 2 for detecting the position of the car 1 with respect to the landing floor. The landing device 2 is provided with a recess 3, and the landing plate is attached to a support bracket 4 supported by a guide rail (not shown) or the like by an elevator landing plate support device 5. 6 is allowed to pass. When the landing plate 6 enters the recess 3, the landing device 2 detects and sends a signal.

  The elevator landing plate support device 5 has one end fixed to the landing plate 6 by a fixing metal fitting 7 and the other end extending from the landing plate 6 and having an axis 8 that is parallel to the lifting direction of the elevator car 1. A shaft member 10 having an end 9 is provided. In the illustrated example, the shaft member 10 is an elastic rod-like member that is bent into a square shape with a part of one side open.

  The elevator landing plate support device 5 is also fixed to the support bracket 4 in the elevator hoistway, has a space portion 11 for receiving the shaft end portion 9 of the shaft member 10, and rotates the landing plate 6 around the axis 8. A receiving member 12 is provided to support it. The metal receiving member 12 is folded back on one side of a rectangular metal plate, and has a cylindrical portion 13 having a space portion 11 inside as shown in an enlarged view of a portion surrounded by a circle A in FIG. It is fixed to the support bracket 4 by an appropriate means such as a screw 14.

  The cylindrical portion 13 of the metal receiving member 12 presses the peripheral surface of the shaft end portion 9 of the shaft member 10 inserted into the cylindrical portion 13 by the elasticity of the bent metal plate itself. A pressing means is configured to relatively elastically press the shaft end portion 9 of the shaft member 10 and the metal receiving member 12 of the elevator landing plate support device.

  The elevator landing plate support device further includes a cam surface 15 and a pressing surface 16 elastically pressed against the cam surface 15 between the shaft member 10 and the metal receiving member 12. Is provided with elastic holding means 17 for selectively and elastically holding at a predetermined position relative to the metal receiving member 12.

  In the example shown in FIGS. 1 to 3, the cam surface 15 is provided on the outer periphery of the shaft end portion 9, is parallel to the shaft center 8 and substantially perpendicular to each other, and has at least two valley portions 18, A crest 19 that guides the shaft member 10 to the trough 18 is provided between the troughs 18. The pressing surface 16 is provided on the inner peripheral surface of the space portion 11 of the metal receiving member 12 and selectively elastically engages with the valley portion 18 of the cam surface 15 of the shaft end portion 9.

  More specifically, in the example shown in FIGS. 1 to 3, the shaft end portion 9 of the shaft member 10 has a shape close to a quadrangular prism with rounded corners, and four planes constituting the cam surface 15 or It has a cylindrical outer peripheral surface with a large curvature radius, and these outer peripheral surfaces are parallel to the axis 8 and are substantially perpendicular to each other. Accordingly, since the shaft end portion 9 rotates around the shaft center 8, the shaft end portion 9 is constituted by the outer peripheral surface with reference to a circle C having a radius as an average value of the distance from the shaft center 8 to each point on the outer peripheral surface. In consideration of the height of the cam surface 15, the inner peripheral surface portion of the circle C can be considered as a valley portion 18, and a round corner that continuously and smoothly connects the valley portions 18 outside the circle C. The part can be considered as a mountain part 19.

  Two substantially flat opposing surfaces are provided on the inner peripheral surface of the space portion 11 of the metal receiving member 12, and the cam surface is constituted by the outer peripheral surface which is the valley portion 18 or the peak portion 19 of the shaft end portion 9. A pressing surface 16 that selectively and elastically engages 15 is formed.

  The landing plate 6 supported by the elevator landing plate support device 5 of the present invention is in the position shown in FIG. 1 in a normal state and is close to the landing device 2 during operation of the elevator but without contact. A landing signal is generated through the recess 3 of the floor apparatus 2. At this time, the shaft end portion 9 of the shaft member 10 of the elevator landing plate support device 5 is pressed against the valley portion 18 of the cam surface 15 by the pressing surface 16 of the metal receiving member 12, and is stably and elastically held at this position. Has been.

  However, when the main rope resonates with the shaking of the building due to an earthquake or strong wind and the main rope collides with the landing plate 6, the force received by the landing plate 6 is applied to the shaft member 10 of the elevator landing plate support device 5. Accordingly, the shaft end portion 9 rotates around the shaft center 8 in the cylindrical portion 13 of the metal receiving member 12. At this time, the pivoted shaft end portion 9 moves from the valley portion 18 to the peak portion 19 of the cam surface 15 that has been in contact with the pressing surface 16 of the metal receiving member 12, and accordingly, the pressing surface 16 of the cylindrical portion 13. Will be spread against the elastic force.

  When the rotation of the shaft end portion 9 proceeds and the peak portion 19 of the cam surface 15 gets over the dead center of the elastic action of the pressing surface 16 of the cylindrical portion 13, the elastic force of the cylindrical portion 13 acts in the opposite direction. The rotation of the shaft end portion 9 is promoted, and the shaft end portion 9 is rotated from the normal position shown in FIG. 1 to the operation position shown by the solid line or the broken line in FIG. Retained.

  As described above, when the landing plate 6 is rotated counterclockwise, for example, from the normal position in FIG. 1 to move to the operating position indicated by the solid line in FIG. Until the peak portion 19 of the cam surface 15 of 9 moves over the spring action line of the pressing surface 16, a clockwise rotational moment is applied to the shaft end portion 9, and the peak portion 19 is a spring of the pressing surface 16. After exceeding the line of action, a counterclockwise rotational moment is applied to the shaft end portion 9 to promote its rotation. When the shaft end portion 9 is further rotated by this rotational moment, the trough portion adjacent to the trough portion 18 (the bottom trough portion 18 in FIG. 1) that was initially in contact with the pressing surface 16 is pressed by the receiving member 12. It is pressed in parallel with the surface 16, and the rotational moment does not act and stops at the operation position indicated by the solid line in FIG. 3. At this position, when the shaft end portion 9 rotates in either direction, the crest portion 19 of the cam surface 15 is pressed by the pressing surface 16 to generate a rotational moment that resists the rotational direction, and is returned to its original position. After all, the trough 18 and the pressing surface 16 are elastically held at a position where they are parallel to each other.

  Thus, if the landing plate 6 is supported by the elevator landing plate support device 5 of the present invention, the landing plate 6 is selectively moved to the normal position of FIG. 1 or the operating position of FIG. 3 by the elastic holding means 17. When an external force of a predetermined value or more is applied, it is moved from each position to another position and held there, and does not stay at other intermediate positions.

  Therefore, as shown in FIG. 1, the arrangement of the landing plate 6 is set to a position where the landing device 2 can be operated in the normal position, and the equipment in the elevator hoistway including the landing device 2 in the operating position shown in FIG. 3. Arrange them so that they do not interfere with each other.

  Further, since the landing plate 6 moves to the operating position with a relatively small force, the landing plate 6 itself is not deformed or damaged even if it collides with the main rope or the like.

Embodiment 2. FIG.
4 to 6 show a second embodiment of the elevator landing plate support device of the present invention. In this elevator landing plate support device, the cam surface 20 is provided in an annular shape on the axial end surface of the tubular portion 13 of the metal receiving member 12, and the neck portion that holds the shaft end portion 9 of the shaft member 10 is the pressing surface. 21 is pressed against the cam surface 20 by a pressing means which is an elasticity of the material of the shaft member 10.

  As shown in FIG. 5, the shaft member 10 is a rod-like member having elasticity, which is fixed to the landing plate 6 and bent so as to have a shaft end portion 9 having a shaft center 8, and the metal receiving member of FIG. When the shaft end portion 9 is inserted into the 12 tubular portions 13, the neck portion supporting the shaft end portion 9 is bent so as to be pressed against the end face of the tubular portion 13.

  As shown in FIG. 6, the cam surface 20 is an annular shape formed on the end surface of the cylindrical portion 13 of the metal receiving member 12, and has at least two valley portions centering on the axis 8 of the shaft end portion 9. 18 and a peak portion 19 that guides the pressing surface 21 that is the neck portion of the shaft member 10 to the valley portion 18 between the valley portions 18. The pressing surface 21 is provided on the outer peripheral surface of the neck portion of the shaft member 10 that supports the shaft end portion 9, and selectively elastically engages with the valley portion 18 of the cam surface 20 of the metal receiving member 12.

  In the illustrated example, the cam surface 20 is provided on both outer end surfaces of the tubular portion 13 of the metal receiving member 12, but may be provided only on one of the outer end surfaces.

  Also in this embodiment, the landing plate 6 is selectively held at the normal position or the operating position similar to that shown in FIGS. 1 and 3 by the elevator landing plate support device 5, and an external force of a predetermined value or more acts. When it does, it moves from each position to another position and is held there, and does not stay at other intermediate positions. Therefore, if the arrangement of the landing plate 6 is set to a position where the landing apparatus 2 can be operated at the normal position, and the operation position is arranged so as not to interfere with the equipment in the elevator hoistway including the landing apparatus 2. Even if it collides with the main rope or the like, it will not be deformed or damaged, and subsequent equipment will not damage other equipment.

Embodiment 3 FIG.
FIG. 7 shows only the shaft member 10 and the metal receiving member 12 of an elevator landing plate support apparatus according to still another embodiment, and FIG. 8 shows only the shaft member 10. In this example, the cam surface 20 formed on the end surface of the metal receiving member 12 is provided on the inner end surfaces of the two cylindrical portions 22 that are axially spaced apart from each other. Accordingly, the pressing surface 23 formed on the peripheral surface of the neck portion of the shaft member 10 that engages with the cam surface 20 becomes the outer peripheral surface.

  As shown in FIG. 8, the shaft member 10 is a rod-shaped member having elasticity that is bent so as to have a shaft end portion 9 extending outward, and is formed on the cylindrical portion 22 of the metal receiving member 12 in FIG. When the shaft end portion 9 is inserted, the neck portion that supports the shaft end portion 9 is bent so as to be pressed by the cam surface 20 provided on the end surface of the cylindrical portion 22. The cam surface 20 may be the same as the cam surface 20 shown in FIG. In the illustrated example, the cam surface 20 is provided on both inner end surfaces of the two cylindrical portions 22 of the metal receiving member 12, but may be provided only on one of the inner end surfaces.

  Also in this embodiment, the landing plate 6 is selectively held by the elevator landing plate support device 5 at the normal position or the operating position similar to that shown in FIGS. 1 and 3, and an external force of a predetermined value or more is applied. When it does, it moves from each position to another position and is held there, and does not stay at other intermediate positions. Accordingly, if the landing plate 6 is arranged at a position where the landing device 2 can be operated at a normal position and is arranged so as not to interfere with equipment in the elevator hoistway including the landing device 2 at the operating position, Even if it collides with a rope or the like, it will not be deformed or damaged, and subsequent equipment will not damage other equipment.

Embodiment 4 FIG.
In the elevator landing plate support apparatus shown in FIG. 9, the pressing means is a tension elastic body 24 that is connected between the shaft end portions 9 of the shaft member 10 and pulls the two shaft end portions 9 toward each other. Such a tension elastic body 24 can use a rubber string, a tension spring or the like. Other configurations of the elevator landing plate support device are the same as those shown in FIGS.

Embodiment 5 FIG.
In the elevator landing plate support device shown in FIG. 10, the pressing means is a permanent magnet 25 provided at the shaft end portion 9 of the shaft member 10 and attracting each other. In the illustrated example, a pair of permanent magnets 25 is provided for each shaft end 9, but a pair of permanent magnets 25 may be provided only on one of the shaft ends 9, or only one The pressing means can also be constituted by a permanent magnet. Other configurations of the elevator landing plate support device are the same as those shown in FIGS.

It is a schematic top view which shows Embodiment 1 of the elevator landing plate support apparatus of this invention in a normal position. FIG. 2 is a schematic plan development view of the elevator landing plate support device of FIG. 1. It is a schematic top view which shows the elevator landing plate support apparatus of FIG. 1 in an operation position. It is a schematic plan view which shows another embodiment of the elevator landing plate support apparatus of this invention. It is a schematic plan view which shows the shaft member of the elevator landing plate support apparatus of FIG. It is a schematic perspective view which shows the cam surface of the elevator landing plate support apparatus of FIG. It is a schematic plan view which shows another embodiment of the elevator landing plate support apparatus of this invention. It is a schematic plan view which shows the shaft member of the elevator landing plate support apparatus of FIG. It is a schematic plan view which shows another embodiment of the elevator landing plate support apparatus of this invention. It is a schematic plan view which shows another embodiment of the elevator landing plate support apparatus of this invention.

Explanation of symbols

  2 landing devices, 5 elevator landing plate support devices, 6 landing plates, 8 shaft centers, 9 shaft ends, 10 shaft members, 11 space portions, 12 receiving members, 13, 22 cylindrical portions, 15, 20 Cam surface, 16, 21, 23 Press surface, 17 Elastic holding means, 18 Valley, 19 Mountain, 24 Elastic body, 25 Permanent magnet.

Claims (11)

An elevator landing plate support device for supporting a landing plate mounted in an elevator hoistway,
A shaft member having one end fixed to the landing plate and the other end extending from the landing plate and having an axis parallel to the elevator car elevating direction;
A receiver member fixed in the elevator hoistway, having a space portion for receiving the shaft end portion of the shaft member, and supporting the shaft end portion so as to be rotatable around the axis;
Pressing means for relatively elastically pressing the shaft member and the metal receiving member with each other;
Provided between the shaft member and the receiving member pressed against each other, and having a cam surface and a pressing surface elastically pressed against the cam surface, the shaft member is at least two with respect to the receiving member. An elevator landing plate support device, comprising: an elastic holding means that selectively and elastically holds at a predetermined position.   The cam surface is provided on the outer periphery of the shaft end portion, and is parallel to the shaft center and is substantially perpendicular to each other. At least two valley portions and the shaft member between the valley portions are guided to the valley portions. And the pressing surface is provided on the inner peripheral surface of the space portion of the metal receiving member and selectively elastically engages with the valley portion of the cam surface of the shaft end portion. The elevator landing plate support device according to claim 1.   The elevator landing plate support device according to claim 2, wherein the shaft end portion is a substantially quadrangular prism, and the pressing surface of the metal receiving member has a substantially flat facing surface.   The elevator landing plate support device according to any one of claims 1 to 3, wherein the pressing means is elasticity of the receiving member.   2. The elevator landing according to claim 1, wherein the cam surface is provided on an axial end surface of the metal receiving member, and the pressing unit presses the shaft member against the cam surface of the metal receiving member. Plate support device. The cam surface has at least two troughs around the shaft center of the shaft end, and a crest that guides the shaft member to the trough between the troughs,
2. The pressing surface is provided on an outer peripheral surface of the shaft member that supports the shaft end portion, and selectively elastically engages with the valley portion of the cam surface of the metal receiving member. Elevator landing plate support device according to claim 1.   The elevator landing plate support device according to claim 5 or 6, wherein the cam surface is provided on both outer end surfaces of the metal receiving member.   The elevator landing plate support device according to claim 5 or 6, wherein the cam surface is provided on an inner end surface of the metal receiving member.   The elevator landing plate support device according to any one of claims 5 to 8, wherein the pressing means is elasticity of the shaft member itself.   The elevator landing plate support device according to any one of claims 5 to 7, wherein the pressing means is a tensile elastic body connected to the shaft member.   The elevator landing plate support device according to any one of claims 5 to 7, wherein the pressing means is a magnet provided on the shaft member and attracting each other.

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