JP3208890U - Stair lift - Google Patents

Abstract

Provided is a stair lift that has a simple structure and is provided with a fall prevention means and can be constructed at low cost. A stair lift according to the present invention is a stair lift that is laid along a stair slope, and includes a lift 10 having a claw member 16 rotatably supported, and a claw receiving rack 31 on a rail. When the claw member 16 is released from the tension of the wire 51, the claw member 16 is connected to the claw member 16 via the wire 51 and connected to the claw member 16 via the wire 51. It rotates to the position where it engages with the receiving rack 31 to lock the elevating body 10 and stop the elevating body 10 from descending. [Selection] Figure 4

Description

  The present invention relates to a stair lift.

  2. Description of the Related Art Conventionally, stair elevators of a type in which guide rails are installed (fixed) on existing stairs and seats are mounted on the installed guide rails are known (for example, Patent Documents 1 and 2).

  In addition, the stair lift is driven by using a wire, rope, or chain to lift the cableway, moving the installed cableway by the elevator itself, or using a rack and pinion method. There is.

JP 2014-125327 A Japanese Patent Laid-Open No. 2002-120981

  In the method of hoisting and lifting the cableway using the above-mentioned wire etc., for example, when the wire is cut or the hoist lifter (winding device) is idle or slips, the safety device etc. Means to prevent are needed.

  The present invention has been proposed in view of the above points, and it is an object of the present invention to provide a stair lift that can be configured at low cost with a simple structure and a drop prevention means.

  In order to solve the above-described problems, a stair lift according to the present invention is a stair lift that is laid along a stair slope, and includes a lift body having a claw member that is rotatably supported, and a claw support on a rail. A guide rail provided with a rack, and a hoist lifter that is connected to the claw member via a wire and moves up and down the lifting body, and when the claw member is released from the tension of the wire, the claw member is It rotates to the position where it engages with the claw receiving rack, engages the lifting body and stops the lowering of the lifting body.

  According to the embodiment of the present invention, it is possible to provide a stair lift that can be configured at low cost by providing a drop prevention means with a simple structure.

The right sectional view of the stair lift according to the present embodiment is shown. The front view of the stair lift which concerns on this embodiment is shown. The perspective view of the guide rail which concerns on this embodiment is shown. The perspective view of the raising / lowering body which concerns on this embodiment is shown. Front sectional drawing at the time of installing a raising / lowering body inside the groove | channel of the guide rail which concerns on this embodiment is shown. The plane sectional view at the time of installing a raising / lowering body inside the groove | channel of the guide rail which concerns on this embodiment is shown. The right sectional drawing at the time of installing a raising / lowering body inside the groove | channel of the guide rail which concerns on this embodiment is shown.

  Embodiments of the present invention will be described in detail with reference to the drawings. In addition, when what attached | subjected the same code | symbol appears over several drawings, the repeated description which becomes repeated is abbreviate | omitted suitably.

  FIG. 1 is a right sectional view of a stair lift according to this embodiment. FIG. 2 shows a front view of the stair lift according to the present embodiment. The stair lift 100 according to the present embodiment is mainly installed on the existing staircase 1. For example, it is laid along the slope of the home stairs to assist the descent of the resident who has difficulty in going up and down.

  In the stair lift 100, the lifting body 10 moves up and down along the guide rail 30. The guide rail 30 may be located on either the left or right side or center of the staircase, or may be provided directly on the staircase wall surface or a column. The lifting body 10 is connected to a whistle lifter 50 as power and a single wire 51 over the entire length of the guide rail 30. When the user operates an operation switch (not shown), the hoist lifter 50 is driven, and the elevator body 10 is moved up and down by winding and lowering the wire 51 via the pulley 52. The wire 51 is a flexible and strong string, and includes a wire rope, a resin rope for suspending loads, and the like.

  In FIG. 1 and FIG. 2, two lifting bodies 10 are shown when they are located at the uppermost part and the lowermost part of the guide rail 30.

  FIG. 3 is a perspective view of the guide rail according to the present embodiment. The guide rail 30 according to the present embodiment is a metal structure that is held along the stairs 1. For example, the cross-section of the guide rail 30 is a C-type or box-type lip groove steel (also referred to as a C-type steel or a C channel) It is. Further, as shown in FIG. 3, a claw receiving rack 31 is fixed to the center of the groove bottom of the guide rail 30 along the rail.

  FIG. 4 shows a perspective view of the lifting body according to the present embodiment. The lifting body 10 is fitted in the groove of the guide rail 30. The lifting body 10 according to this embodiment includes a carriage 11, a chair 12 installed on the carriage 11, a handrail 13, a footrest 14, wheels 15, a locking claw member 16, and a support shaft 17. Have. The claw member 16 is rotatably supported with a support shaft 17 penetrating the claw member 16 as an axis, and the shape of the claw member 16 is a claw type that meshes with a claw receiving rack 31 provided at the center of the groove bottom of the guide rail 30. . The claw member 16 is connected to the hoist lifter 50 through a single wire 51 and is also connected to the carriage 11 through a coil spring 18.

  FIG. 5 is a front cross-sectional view when the elevating body is installed inside the groove of the guide rail according to the present embodiment. FIG. 6 shows a cross-sectional plan view when the elevating body is installed inside the groove of the guide rail according to the present embodiment. As shown in FIGS. 5 and 6, the above-described lifting body 10 is disposed so as to be fitted into the groove of the guide rail 30. A gap for rotating the wheel for lubrication is provided between the wheel 15 and the inner side surface of the guide rail 30.

  FIG. 7 is a right side cross-sectional view when the lifting body is installed inside the groove of the guide rail according to the present embodiment.

[State 1]
When the wire 51 from the hoist lifter 50 is pulled and is in a tensioned state (when the claw member 16 is not released from the tension of the wire 51), the claw member 16 rotates on the support shaft 17 and is in the state of the claw member 16a. . That is, the claw member 16 a is separated from the claw receiving rack 31 provided in the center of the bottom of the groove of the guide rail 30 and does not mesh with the rack, and the weight of the elevating body 10 is supported by the hoist lifter 50.

  Therefore, when the wire 51 is wound up by the hoist lifter 50, the entire lifting body 10 is supported via the claw member 16, and the lifting body 10 is raised along the guide rail 30. On the other hand, when the wire 51 is pulled by the whistle lifter 50 so as not to be loosened and is wound down at a predetermined speed or less while being kept in tension (when released), the entire lifting body 10 is supported via the claw member 16. However, the elevating body 10 descends along the guide rail 30.

[State 2]
When the wire 51 from the hoist lifter 50 is not in a tension state (when the claw member 16 is released from the tension of the wire 51), for example, the wire is cut or the hoist lifter 50 is idle or slips. In this case, the claw member 16b is in the state of rotating on the support shaft 17 and applying the restoring force of the coil spring 18. That is, the claw member 16a is moved and rotated to a position where it engages with a claw receiving rack 31 provided at the center of the bottom of the groove of the guide rail 30, and the claw member 16 is locked and locked by the rack. The own weight of 10 is supported by the guide rail 30.

  Even when the coil spring 18 is not provided, the claw member 16 can move from the state 1 to the state 2, but the restoring force of the coil spring 18 as an elastic body acts in the direction opposite to the tension of the wire 51. 16 is quickly and reliably moved from the state 1 to the state 2 position. Further, when the coil spring 18 is not used, the center of gravity of the claw member 16 is added to the lower tip portion, so that the claw member 16 can be quickly and reliably moved from the state 1 to the state 2 by its own weight. It is also possible to move it.

  In addition, as the self-function of the hoist lifter 50, it is desirable to have a moving body fall prevention means / safety device function when the hoist lifter 50 idles or slips.

  As described above, according to the stair lift 100 according to the present embodiment, for example, when the wire is cut or the hoist lifter 50 is idle or slips, the claw member 16 of the lift 10 is provided at the center of the bottom of the groove of the guide rail 30. The claw receiving rack 31 is engaged and locked. For this reason, it is possible to prevent the elevating body 10 from dropping onto the staircase slope by directly supporting the weight of the elevating body 10 by the guide rail 30 (claw receiving rack 31).

  Moreover, the claw member 16 of the elevating body 10 and the claw receiving rack 31 of the guide rail 30 can be configured simply and inexpensively as a fall prevention means / safety device.

  That is, according to the stair lift 100 according to the present embodiment, it is possible to provide a stair lift that can be configured at low cost by providing a drop prevention means with a simple structure.

  It should be noted that although the present invention has been described by way of preferred embodiments of the present invention with specific examples, these specific examples may be used without departing from the broad spirit and scope of the present invention as defined in the claims. Obviously, various modifications and changes can be made to the examples. In other words, the present invention should not be construed as being limited by the details of the specific examples and the accompanying drawings.

DESCRIPTION OF SYMBOLS 10 Lifting body 11 Cart 12 Chair 13 Handrail 14 Footrest 15 Wheel 16 Claw member 17 Support shaft 18 Coil spring 30 Guide rail 31 Claw receiving rack 50 Whistle lifter 51 Wire 52 Pulley 100 Stair lift

Claims (3)

A stair lift that is laid along a staircase slope,
An elevating body provided with a claw member supported rotatably;
A guide rail with a claw receiving rack on the rail,
A hoist lifter connected to the claw member via a wire and moving up and down the lifting body,
When the claw member is released from the tension of the wire, the claw member rotates to a position where the claw member meshes with the claw receiving rack, the elevating body is locked, and the descent of the elevating body is stopped;
A stair lift. The raising and lowering further comprises an elastic body having a tension in a direction opposite to the tension of the wire,
The elastic body rotates the claw member to a position where it engages with the claw receiving rack when the claw member is released from the tension of the wire;
The stair lift according to claim 1. The guide rail is made of a C-type or box-type lip groove steel, and the claw receiving rack is fixed to the center of the inner bottom of the lip groove steel along the rail.
The stair lift according to claim 1 or 2.