JP2004203573A - Elevation device for eliminating level difference - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce installation cost, simplify installation construction work, simplify a door structure, and strengthen safety measures. <P>SOLUTION: This elevation device for eliminating level difference is constituted by providing a hydraulic elevation unit in an inner side part of a frame body. An entrance door is composed of a small door moving to the right and left and a turn door whose inner end opposing to an inner end of the small door is moved to the right and left and whose outer end is moved forward and backward along a side face of the frame body. While the entrance is closed, both doors are put in a straight condition when viewed in a plane by making the turn door parallel with the small door and making the inner end of the small door adjacent to the inner end of the turn door. A door closing confirmation means for confirming that the entrance is closed is provided. An elevation box body can ascend and descend only in door closing confirmation operation. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a device for removing steps on a wheelchair or the like so that a wheelchair, a walking assistance vehicle, a luggage car, a baby carriage, a disabled person with aged, etc. can go up and down the stairs and steeps such as an entrance approach and a temple approach. Things.
[0002]
[Prior art]
As this type of step eliminating device, a combination of an X-link mechanism (pantograph-type telescopic link) and a hydraulic cylinder (Patent Document 1), a structure in which a wheelchair lift is supported at the tip of a piston rod operated by a hydraulic sininder (Patent Document 1) 2) is known.
[0003]
[Patent Document 1] Japanese Patent Application Laid-Open No. Hei 10-157990 [Patent Document 2] Japanese Patent Application Laid-Open No. Hei 6-63028
[Problems to be solved by the invention]
The former of the prior art requires civil engineering work to form an underground space for storing the X-link mechanism (pantograph-type telescopic link) under the ground at the ground position of the step eliminating device, and the latter requires a hydraulic cylinder. Engineering work for forming a hydraulic cylinder burial hole for storing the hydraulic cylinder under the ground at the ground position of the step eliminating device is required. As a result, there are problems such as an increase in installation costs due to the necessity of civil engineering work, and an inability to easily change the installation location, thereby hindering lease sales.
Therefore, the invention of the present application eliminates the need for any civil engineering work such as basement work and foundation work, and aims to reduce installation costs and simplify installation locations.
Further, in order to solve the above-mentioned problems, it is an object of the present invention to simplify a door structure and enhance safety measures in a step-elevating device in which a hydraulic elevating unit is provided inside a frame.
[0005]
[Means for Solving the Problems]
In a lifting device for lifting a step equipped with a hydraulic lifting unit on the inner side of the frame, the entrance door is moved left and right by the small door that moves left and right, the inner end facing the inner end of the small door is moved left and right, and the outer end is placed on the side of the frame. In the closed state of the entrance / exit, the door is parallel to the small door, and the inner end of the small door and the inner end of the rotary door are adjacent to each other. Is linear in plan view, and in the open state, the small door is stored in a storage space formed in the drive unit area equipped with the hydraulic lifting unit, and the rotating door is stored in a state parallel to the side surface of the frame. The door structure of the lifting box of a configuration that is orthogonal to the plan view, and a door closing confirmation means for confirming that the small door and the revolving door of the door structure of the lifting box are in the closed state of the entrance and exit are provided, Only in the door closing confirmation operation of the door closing confirmation means, it is possible to move the lifting box up and down. That.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
A moving pulley mounted on the upper end of a piston of a hydraulic cylinder, a chain wound around the moving pulley and having one end fixed to a base, a hydraulic supply mechanism for supplying hydraulic pressure to the hydraulic cylinder, and control for the hydraulic supply mechanism And a step-elevating device for eliminating steps.
In the above-described step-elevating lifting device, the entrance door is turned left and right, and the inner end of the small door facing the inner end is moved left and right, and the outer end is moved back and forth along the side surface of the frame. Consists of doors. In the closed state of the entrance, the inner ends of the small door and the inner end of the rotating door are adjacent to each other with the rotating door being parallel to the small door, and both doors are linear in plan view. In the open state, the small door is stored in a storage space formed in the drive unit area equipped with the hydraulic lifting unit, and the rotating door is stored in a state parallel to the side surface of the frame. Door closing confirmation means for confirming that the small door and the revolving door are in the entrance / exit closed state is provided, and the elevating box can be moved up and down only in the door closing confirmation operation of the door closing confirmation means.
[0007]
【Example】
Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.
[0008]
With reference to FIGS. 1 to 4, a description will be given of the lifting device 1 for eliminating steps.
The lifting device 1 for removing a step includes a moving pulley (driven sprocket) 11 mounted on an upper end of a piston 12 of a hydraulic cylinder 10, and a towing body (towing chain, which is wound around the moving pulley 11 and one end of which is fixed to the base 4). The main components are a towing rope 3, a hydraulic supply mechanism for supplying hydraulic pressure to the hydraulic cylinder 10, and an elevating guide mechanism.
[0009]
The outer frame 2 is configured by integrating the frame 5 with the base 4 constructed at the installation location. In the sectional view of the outer frame 2, a drive unit area P is formed on a side portion, and the remaining area is a lifting area Q.
[0010]
Referring to FIG. 1, a lifting box 6 is mounted on the lifting area Q. The elevating box 6 has entrances 7A and 7B formed on the front side and the back side, and an entrance door 8 is provided inside the entrances 7A and 7B. The outer frame 5 has front and rear entrances 17A and 17B on the front and back sides corresponding to the entrances and exits 7A and 7B of the elevating box 6, respectively. The door 9 is equipped.
[0011]
The elevating guide mechanism of the elevating device 1 for removing the step comprises a guide 21 fixed to the outer frame 5 and the elevating box 6 between the right side of the outer frame 5 and the right outer surface of the elevating box 6. A guide mechanism 20 including a guide body 23 including a fixed guide roller 22 is provided, and is located on the drive unit area P on the left side of the outer frame body 5, and a standing pillar 24 integrated with the outer frame body 5, a support rail 25, a fixed guide portion 27 including a gauge guide 26, a frame 28 fixed to the bottom surface of the elevating box 6 and extending to the drive unit area P, and a moving guide portion 29 including a guide 28A fixed to the frame 28. The driving side guide mechanism 30 is provided on the front side and the back side.
[0012]
The tow body (tow chain, tow rope) 3 is fixed to a tow plate 31 fixed to the left outside surface of the elevating box 6, and a support 32 on which the moving pulley 11 is mounted and a top end of the piston 12 are connected by ball support. It is connected via a mechanism. A through hole 34 is formed in the towing plate 31 and passes through the guide shaft 33.
[0013]
Referring to FIG. 4, 35 is a control box, 36 is a hydraulic tank, and 37 is an electric motor, which constitutes a hydraulic supply mechanism. In FIG. 2, reference numeral 38 denotes a shock absorber. Referring to FIG. 1, a handrail 39 is provided in the lifting box 6.
[0014]
Next, with reference to FIGS. 5 to 7, a description will be given of a door structure of the entrance door 8 provided at the entrances 7A and 7B on the front side and the rear side of the elevating box body 6. FIG.
[0015]
The entrance door 8 includes a small door 81 that moves left and right, and a pivot door 82 that moves left and right at the inner end facing the inner end of the small door and moves the outer end back and forth along the side surface of the frame.
[0016]
In the closed state of the entrance / exit, as shown in FIG. 5, the pivoting door 82 is in parallel with the small door 81, and the inner end of the small door 81 and the inner end of the pivoting door 82 are adjacent to each other. , 82 are linear in plan view.
[0017]
In the open state, referring to FIG. 6, small door 81 is stored in a storage space formed in drive unit area P, and turning door 82 is in a state parallel to the side surface of lifting box 6.
[0018]
FIG. 7 shows a guide mechanism for bringing the rotating door 82 into a state parallel to the side surface of the lifting / lowering box 6. The guide roller 16a pivotally supported by the front end of the door 82 is guided by the groove rail 16 so that the rotating door 82 is moved ahead of the side closer to the side of the lifting box.
In addition, the left and right movement of the small door 81 is guided by the general linear rail 14. The handgrip 40 may be attached to the small door 81 and the pivoting door 82 at appropriate positions to facilitate the moving operation of the small door 81 and the pivoting door 82.
[0019]
In addition, the movement of the small door 81 and the pivoting door 82 may be interlocked with each other by an interlocking mechanism, and the opening and closing of both doors may be performed by one of the operations. Further, a driving mechanism using an electric motor may be provided in the small door 81 and the pivoting door 82 so that the small door 81 and the pivoting door 82 may be electrically driven.
[0020]
In the closed state of the entrance by the small door 81 and the rotating door 82, the inner end of the small door and the inner end of the rotating door are adjacent to each other, and both doors are in a straight line in a plan view. The inner end of the small door is adjacent to the inner end of the revolving door (including the abutting state of the end faces of both doors and the approaching state with a slight gap), that is, the entrance Door closing confirmation means 41 for confirming that the door is closed.
[0021]
As the door closing confirmation unit 41, an approach detection sensor mechanism such as a capacity sensor, an optical sensor, a limit switch, and the like can be applied. Further, a mechanism for mechanically locking the inner end of the small door and the inner end of the rotating door may be added, and a sensor mechanism for detecting the operation of the lock mechanism may be used.
[0022]
Hydraulic drive is enabled by the door closing confirmation operation of the door closing confirmation means via the control means for the hydraulic supply mechanism provided in the control box 35, and the lifting box body can be raised and lowered only when the door is forcibly closed. .
[0023]
In connection with the opening and closing of the entrance doors 8 with respect to the entrances 7A and 7B of the elevator box 6, the control of the opening and closing of the entrance doors 9 with respect to the entrances 17A and 17B of the outer frame 2 is controlled by a known elevator. Apply door opening and closing control technology.
[0024]
FIG. 8 shows the step elimination by the step elimination elevating device 1 of the present invention, in which a step h1 generated between the corridor A of the hotel main building and the corridor B of the hotel annex, a wheelchair or the like travels in response to the existence of the step h1. It is free.
[0025]
【The invention's effect】
The invention of the present application is a lifting device for eliminating a step in which a hydraulic lifting unit is mounted on the inner side of a frame body, thereby eliminating the need for any civil engineering work such as basement work, foundation work, etc., reducing installation costs and simplifying installation work. Can be achieved.
Further, in the present invention, when the entrance is closed, the rotating door is parallel to the small door, the inner end of the small door and the inner end of the rotating door are adjacent to each other, and the end faces of both doors are brought into contact with and opposed to each other. With this, the door closing confirmation operation by the door closing confirmation means can be ensured, and in the open state, the small door is stored in the drive unit area equipped with the hydraulic lifting unit, and the rotating door is By storing in a state parallel to the side surface of the frame, an opening sufficient for the getting on / off operation is formed, and there is an effect that the getting on / off of a wheelchair or the like is facilitated.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a step-elevating lifting / lowering device showing an embodiment of the present invention.
FIG. 2 is a vertical sectional view of the hydraulic lifting unit in a side view.
FIG. 3 is a vertical cross-sectional view of the hydraulic lifting unit as viewed from the rear.
FIG. 4 is a partial front view showing a lower half of the hydraulic lifting unit.
FIG. 5 is a schematic plan view showing a closed state of the entrance door of the elevator box.
FIG. 6 is a schematic plan view showing an open state.
FIG. 7 is a schematic plan view showing a movement path of the small door and the rotating door.
FIGS. 8A and 8B are explanatory views of the step-eliminating action according to the present invention, wherein FIG. 8A is a perspective view, FIG. 8B is a transverse sectional view, FIG. 8C is a longitudinal sectional view, and FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lifting device 2 for eliminating steps 2 Outer frame 4 Base 5 Frame 6 Lifting boxes 7A, 7B Entrance and exit
8 Exit door
10 Hydraulic cylinder
11 Moving pulley (driven sprocket)
20 Guide mechanism
30 Drive side guide mechanism
41 Door closing confirmation means P Drive unit area Q Lifting area

Claims (1)

In a lifting device for removing steps, which is equipped with a hydraulic lifting unit inside the frame,
The entrance door is constituted by a small door that moves left and right, and a rotating door that moves left and right at the inner end facing the inner end of the small door and moves the outer end back and forth along the side surface of the frame,
In the closed state of the entrance, the rotating door is parallel to the small door, the inner end of the small door and the inner end of the rotating door are adjacent to each other, and both doors are linear in plan view,
In the open state, the small door is stored in the storage space formed in the drive unit area equipped with the hydraulic lifting unit, and the rotating door is stored in a state parallel to the side surface of the frame, and both doors are orthogonal in plan view. Door structure of the lifting box of the configuration,
Door closing confirmation means for confirming that the inside end of the small door of the door structure of the lifting box body and the inside end of the revolving door are adjacent to each other to confirm that the entrance is closed,
An elevation device for eliminating a step, wherein the elevation box can be moved up and down only in the door closing confirmation operation of the door closing confirmation means.

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