JPH10279225A - Lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple and safe lifting device used by a wheel chair user when going out and provided in the step of an entrance or the like wherein an expanded/contracted lifting bag is arranged in the lower part of a base board and the supply/discharge of a medium to the lifting bag is controlled. SOLUTION: For elongating a hoist bag 10 having a medium (water) upward and lowering a base board 1 put in an upper position together with a wheel chair user, first, a chain set in an exit/entrance is removed and a wheel chair is placed on the base board 1. Then, the chain is set, a user grips a handrail 2 and thereby safety is assured. Then, by pressing the lowering button of an operation tool, a solenoid valve 14 is opened and the medium of the hoist bag 10 is reverse-supplied to a water tank 12 by the reverse-rotation operation of a water pump 13. Thus, the hoist bag 19 is contracted and the base board 1 is lowered until a bearing body 3 comes into contact with a lower stop body 5. On the other hand, for raising the base board 1 from a lower position, the water pump 13 is formed driven to supply water to the hoist bag 10, and then the base board 1 is raised.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting device for lifting a substrate or the like, and more particularly to a lifting device for a wheelchair.

[0002]

2. Description of the Related Art Hitherto, as a lifting device, there is a hoist type using a cylinder or a motor, and it is used in various fields. For example, in recent years, for people living in wheelchairs, for convenience, a device for raising and lowering a step when going out of the house, a device for raising and lowering used for taking a bath together with a wheelchair, etc. are any of the devices described above. Is going.

[0003]

However, since a safe lifting device which can be easily applied to various fields and is safe is desired, the present invention provides such a lifting device.

[0004]

The lifting device according to claim 1 is
An inflatable elevating bag is arranged at the lower part of the substrate, and an entrance for the medium is provided in the elevating bag, and the elevating bag is expanded by putting the medium in the elevating bag, and the substrate is lifted,
The substrate is lowered by removing the medium. The lifting device according to the second aspect of the present invention is configured such that a plurality of small lifting bags are laminated to form a substrate, and a medium is inserted into or removed from each of the small lifting bags to raise and lower the substrate.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) FIG. 1 is an overall view of a lifting device, FIG.
2A is a left side view and a system diagram of the medium, and FIG.
It is A, BB sectional drawing. Handrails 2 are provided on both sides of the substrate 1, and the handrails 2 are corner pipes 2 b erected at the corners of the substrate 1, connecting pipes 2 c connecting them, and erected at the center of both ends of the substrate 1. Of the central pipe 2a. A stop plate 2d is fixed to the rear end of the substrate 1, and a chain 2e is removably attached to the entrance.
I am trying to be safe.

A bearing 3 is mounted on the back surface of the substrate 1 corresponding to the central pipe 2a, and a guide 4 standing on a lower substrate 7 can be fitted to the bearing 3.
It can be inserted into the central pipe 2a. A lower stop 5 is provided below the guide body 4 to determine a lower position of the substrate 1, and when the bearing 3 contacts the lower stop 5, the upper surface of the substrate 1 The height is adjusted so as to be the same height as the ground (not shown). An overhanging piece 6 is attached to the back side of the substrate 1 corresponding to the corner pipe 2b, and the position of the substrate 1 is adjusted via a position adjusting nut 9 screwed to a guide rod 8 erected on the lower substrate 7. The upper position of 1 is determined and adjusted to be the same as the height of the corridor. Note that a detector 9a for detecting the overhanging piece 6 is attached.

A bellows-like elevating bag 10 made of rubber, synthetic resin or the like is provided below the substrate 1 so that the elevating bag 10 can be completely inserted when a medium is put. The shape is such that the substrate 1 is swollen and the substrate 1 is at an upper position, and becomes a lower position when the medium is removed. The elevating bag 10 is provided with an entrance 11, and the entrance 11 is connected to a discharge port of a submersible pump 13 installed in a water tank 12 by a hose 15 via an electromagnetic valve 14.

Next, the operation of the elevating device will be described. As shown in FIG. 1, the substrate 1 is set at an upper position where the medium is put in the elevating bag 10 (the substrate is at the same height as a corridor or the like). The process of lowering the substrate 1 will be described. In addition, the process described below is an operation tool (not shown) held by a wheelchair occupant.
Is operated automatically by pressing the down / up button.

First, the chain 2e is removed, and a wheelchair (not shown) is mounted on the board 1. Then, while riding the chain 2e, the occupant grasps the handrail 2 for safety. next,
When the down button of the operating tool is pressed, the electromagnetic valve 14 is opened,
The medium in the lifting bag 10 flows backward into the water tank 12 by reversing the pump 13. Therefore, the elevating bag 10 shrinks, and the substrate 1 descends until the bearing 3 contacts the lower stop 5, so that the wheelchair can be moved to the ground by removing the chain 2e.
The medium in the elevating bag 10 is slowly moved without being forcibly discharged by the submersible pump 13.
May be configured to be activated in reverse rotation to perform forced discharge.

Next, the operation in the process of raising the substrate 1 from the lower position to the upper position will be described. First, the chain 2e is removed, a wheelchair (not shown) is put on the board 1, the chain 2e is hung, and the handrail 2 is grasped. Next, when the up button of the operating tool is pressed, the submersible pump 13 is started and the electromagnetic valve 14 is opened, and the water in the water tank 12 is transported from the submersible pump 13 to the elevating bag 10, and the elevating bag 10 is gradually inflated. At the same time, the substrate 1 is raised. Then, when the projecting piece 6 attached to the back surface of the substrate 1 comes into contact with the position adjusting nut 9 screwed and fixed to the guide rod 8, the ascent is stopped, and the electromagnetic valve 14 is closed via the detection signal of the detector 9a. Then, when the submersible pump 13 is stopped, the substrate 1 holds the raised position. Then, the chain 2e is removed, and the wheelchair is moved from the board 1 to the floor. As described above, the wheelchair can be safely moved from the ground to the floor.

As described above, in the process of raising and lowering the substrate 1, the substrate 1 is guided by the guide body 4, and since the medium is water, even if the elevating bag 10 is torn, it takes time to discharge. It is safe without sudden descent. Although water was used as the medium, other liquids,
Although gas (air or the like) may be used, in consideration of the compression ratio of the medium and the discharge time during bursting of the elevating bag,
Water is preferred, especially considering that the liquid allows the use of tap water (which can be raised by tap pressure) instead of the pump.

(Second Embodiment) Next, a small lifting bag 10
Will be described. FIG.
Is an elevating device installed below the substrate 1 (in the bathtub). The five first to fifth small elevating bags 10a to 10e made of rubber or the like as described above can be independently expanded and contracted. The substrate 1 is formed so as to be flush with the bathtub 20 when the first to fifth small elevating bags 10a to 10e are expanded. As described above, when the first to fifth small elevating bags 10a to 10e are configured (the height of elevation of one small elevating bag is 50 to 150 mm), the swing of the substrate 1 during the ascending or descending process is reduced. Less stability,
It is desirable because it is not always necessary to install the guide rod 21 (shown by a broken line) of the substrate 1.

The hot water in the bathtub 20 is sucked by a circulation pump 23 through a filter 22, and an electromagnetic valve 24 is provided on the discharge side of the circulation pump 23. Further, a downstream side is provided for each elevating bag. Are connected to the entrances 11a to 11e provided in the respective lifting bags via hoses through the first to fifth solenoid valves 15a to 15e. The first to fifth solenoid valves 15a to 15e are connected to the suction side of the return pump 28, and the discharge side of the return pump 28 starts the solenoid valve 29 so that liquid can be sent to the bathtub 20. Has become. Although the return pump 28 is not always necessary, it is provided to quickly and quantitatively drain the hot water in each small lifting bag to ensure safety.

Next, the operation of the elevating device in the bathtub will be described.
Automatically operated via the lower button and the upper button. First, all the first to fifth small elevating bags 10a to 10a constituting the elevating device
After e is emptied, that is, with the substrate 1 lowered,
All the solenoid valves 15a to 15e, 24, and 29 are closed, and hot water is poured so as not to overflow the bathtub 20.

When the up button of the operating tool is pressed, the circulating pump 23 is started, and the solenoid valve 24 and subsequently the first solenoid valve 15
When a is opened, the hot water in the bathtub is filtered by the filter 22, filled in the first small lifting bag 10a, and the substrate 1 is raised. Next, after closing the first solenoid valve 15a,
The electromagnetic valve 15b is opened, the second small elevating bag 10b is filled with warm water, and the substrate 1 is raised by that amount. Hereinafter, similarly, by inflating the small lifting bags 10c to 10e, the substrate 1 becomes the same height as the upper end surface of the bathtub 20. The time for sequentially opening the solenoid valves 15a to 15e is set in advance by a timer.

Next, the step of bathing for the occupant of the wheelchair will be described. The occupant gets off the wheelchair and sits on the board 1. Then, when the lowering button of the operating tool is pressed, the fifth solenoid valve 1
When the solenoid valve 29 is opened after the return pump 28 is started and the return pump 28 is started, the warm water of the fifth small lifting bag 10e is returned to the bathtub 20 via the return pump 28, and the fifth small lifting bag 10e is The substrate 1 is lowered in the contracted state. Next, the fourth solenoid valve 15d is opened to open the fourth small lifting bag 10d.
, And the third to first solenoid valves 15c to 15c
c, sequentially through the third to first small lifting bags 10c to 15a
By returning the warm water to the bathtub 20, the substrate 1
The passengers descend sequentially and are immersed in warm water.

The first to fifth solenoid valves 15a to 15e
Are sequentially set in advance by a timer, the order in which the first to fifth solenoid valves 15a to 15e are opened may be reversed, or may be performed in any order.

When the bathing is completed, the operator presses the up button of the operating tool, and the substrate 1 is raised by the same operation as described above. As described above, a plurality of small lifting bags 1
With the configuration of 0a to 10e, the swinging of the substrate 1 in the ascending or descending process is small, and the safety can be maintained. Therefore, the configuration can be simplified without the necessity of installing a guide rod or the like. Further, since the equipment to be immersed in the bathtub is a non-metallic lifting bag and hose, it is a lifting device which does not corrode and does not stain hot water.

(Third Embodiment) Next, the lifting bag 1
A case will be described in which the lifting device constituted by 0 is applied to an article storage device (Japanese Utility Model Laid-Open No. 4-98804) filed by the applicant himself. This article storage device is composed of a plurality of shelves and can store iron plates and the like of different sizes in each shelf. FIG. 4 is an overall perspective view schematically showing the article storage device 100. 5 is a cross-sectional plan view of the holding device 132 taken along the line CC, and FIG. 6 is a diagram illustrating the concept of the operation of the article storage device 100.

The shelf 110 is formed in a box shape from a frame material such as L-shaped steel, and a pair of legs 115 is disposed outside the shelf at symmetrical positions. The leg 115 is formed by forming a round bar into three stages of diameter, and is drilled at the upper end so as to fit the diameter of the lower end of the leg 115 and fixed by welding. By forming the legs 115 in this way, the stacked shelf 11
0 indicates that each shelf 110 can be stacked in a stable state without slipping down, and a gap is formed between each shelf 110.

An elevating device having a bellows-shaped elevating bag 200 formed in the same manner as described above and formed in a bellows shape which can be expanded and contracted with rubber, synthetic resin or the like is installed below the lowermost shelf 110. Yes (see FIG. 6), the elevating bag 200 as a whole is inflated to raise the shelf 110 when a medium is loaded, and falls when the medium is removed. Therefore, the rising position of the shelf can be selected according to the supply amount of the medium. The elevating bag 200 may be constituted by one as in the first embodiment, or may be constituted by a plurality of small elevating bags as in the second embodiment. Further, in consideration of the length and width of the shelf board 110, for example, if it is configured with four sets of elevating devices (elevating bags),
The expansion and contraction of each elevating bag (elevating device) can be made more uniform, and in the process of elevating and lowering the shelf board 110, the swinging is less and safety is improved.

Next, the holding device 132 will be described. The holding device 132 is attached to the upper part of the column 120, and the cylinder 142 such as air or hydraulic is used.
Is fixed. The end of the cylinder rod 145 is L
It is connected to a holding member 146 formed in a U-shape, and the holding member 145 has a two-step cutout 148 formed at an end thereof to be fitted with the leg 115 of the shelf 110. Therefore, the holding member 146 is moved to the positions indicated by the chain line and the solid line shown in FIG.
Is attached and detached.

Next, the operation based on the above configuration will be described.
An outline will be given with reference to FIGS. FIG. 6 (A)
FIG. 3 is a diagram showing a state in which a plurality of stacked shelves 110 are at a lowest position by an elevating device 200. That is, the medium in the elevating bag 200 is in the normal (storage) state in which all the media are removed, and the lowermost shelf 110 is supported by the support 150,
The lifting bag 200 is protected.

Next, as an example, the second shelf 11 from the bottom
The operation for removing (or storing) the articles stored in the storage box 0a will be described. When a button in an operation box (not shown) is pressed, the control device is operated, the medium is put in the lifting bag 200, It rises to the position shown in FIG. That is, the stage 110b immediately above the take-out shelf stage 110a rises to a position where it can be held by the holding device 132 and stops. After that, the cylinder 142 is moved forward to hold the holding member 146 between the legs 115 of the shelf 110b,
The shelf 110b is supported.

Then, by removing the medium from the elevating bag 200 and lowering it to a predetermined position convenient for taking out the articles and stopping the articles, the articles can be taken out between the shelf 110a and the shelf 110b. A gap is created (or accommodated). Thereafter, the articles on the shelf 110a are taken out (or stored) from the gap, and the medium is put in the elevating bag 200 and raised until the shelf 110a is below the shelf 110b.
After the holding device 132 is detached, the lifting bag 20
The medium 0 is removed, and the shelf 110 is lowered to its original state (FIG. 6A). As described above, the lifting device is connected to the lifting bag 20.
0, the shelf can be moved up and down smoothly, and an iron plate or the like can be stored in or taken out of a predetermined shelf, and an article storage device with a small space can be provided. .

The elevating device constituted by the elevating bag in the first and second embodiments can be used in various fields other than those described above. Can be adjusted. In addition, it is needless to say that the entrance 11 provided in the elevating bag 10 may be shared or may be separately formed, or may be constructed manually instead of automatically.

[0027]

According to the first aspect of the present invention, an inflatable elevating bag is disposed under the substrate, and the elevating bag is moved up and down by a medium in and out. Configurable, does not corrode, does not contaminate hot water. Further, since the lifting device according to the second aspect is configured by laminating a plurality of small lifting bags, it is possible to raise and lower with less shaking.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a lifting device according to a first embodiment.

FIG. 2 (A) is a left side view of the lifting device, and FIG.
It is A, BB sectional drawing.

FIG. 3 shows a lifting device according to a second embodiment.

FIG. 4 is an overall conceptual diagram of an article storage device according to a third embodiment.

FIG. 5 is a plan sectional view of the holding device.

FIGS. 6A and 6B are diagrams illustrating the operation of the article storage device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 3 Bearing body 4 Guide body 10 Elevating bag 10a-10e Small elevating bag 11 Doorway

Claims (2)

[Claims] 1. An elevating device for elevating and lowering a substrate, wherein an inflatable elevating bag is arranged below the substrate, and a media entrance is provided in the elevating bag. 2. The lifting device according to claim 1, wherein a plurality of small lifting bags are stacked.