JPH0244748Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention is a bath lift for physically disabled people such as sick and elderly people to take a bath in concrete bathtubs, stainless steel, FRP stationary bathtubs, etc. It is related to.

``Prior Art'' Conventionally, for people with physical disabilities such as sick or elderly people who are unable to bathe on their own, a bathing lift, such as an electric chain-type bathing lift that can be raised and lowered and rotated, has been installed and used in the washing area. The patient was brought to the bathroom in a wheelchair, etc. After undressing, the patient was transferred to the chair part of the bathing lift.
After being washed in the washing area, the chair part is swiveled to the bathtub side and descends to take a bath.
After an appropriate amount of time has elapsed, the patient is generally lifted up along with the chair and swiveled to the washing area, cleaned, clothed, and returned to the patient's room in a wheelchair or the like.

5 to 7 show examples of conventionally known bathing lifts.

In the system shown in Fig. 5, a swivel shaft 2 is rotatably supported by a casing 1 buried in a washing area, and a chair portion (riding portion) 4 is attached to the swivel shaft 2 via a parallel link mechanism 3 so as to be movable up and down. , parallel link mechanism 3
The structure includes a hydraulic cylinder 5 that raises and lowers the chair portion 4 by pressing the hydraulic cylinder 5 .

What is shown in FIGS. 6a and 6b is a hydraulic cylinder 10.
A cylindrical casing 11 is provided on the outer periphery of the hydraulic cylinder 10 and moves up and down integrally with the piston rod 10a of the hydraulic cylinder. 12, 12 are interposed, and a chair portion (riding portion) 13 is supported by the casing 11.

In addition, in the structure shown in FIG. 7, a slider 21 is guided by rollers 22 in a hollow rectangular column 20 so as to be movable up and down, and a chain 23 with both ends locked to the slider 21 is moved in the forward and backward directions. A driving motor 24 is provided, a part of the slider 21 is made to protrude outward from a notch provided on the side of the column, and a chair part (riding part) 26 is provided at the protruding end via a pin 25 so as to be freely pivotable. It is structured as follows.

``Problems to be solved by the invention'' By the way, the above-mentioned conventional bathing lifts had the following problems.

In the one shown in FIG. 5, since the parallel link mechanism 3 is used, the chair part 4 protrudes forward when being raised or lowered, and cannot be applied to a narrow bathtub. When turning, in addition to the chair portion 4, the turning shaft 2 and the parallel link mechanism 3 must also be turned together, which requires a large turning force.

In the case shown in FIG. 6, the moment due to the load applied to the chair portion 13 acts directly on the hydraulic cylinder 10 via the bush 12, so that the hydraulic cylinder 10 is likely to be damaged. When the hydraulic cylinder 10 is extended, the distance between the bushes 12 becomes narrower, and when a moment due to the load applied to the chair portion 13 acts, the casing 11 tilts, making it difficult to move up and down smoothly.

Further, in the case shown in FIG. 7, since the center of rotation is located outside the support column, full rotation is not possible, and installation in a bathroom is restricted. There are problems such as the work involved in assembling chains, rollers, etc. inside the pillars is troublesome.

This invention was made in order to eliminate the above-mentioned problems.

``Means for Solving the Problem'' This invention consists of a hollow support that extends in the vertical direction, a cylinder that is erected within the support and has its lower end fixed, and a cylinder that can be expanded and contracted. an elevating member that is fitted to the outer periphery of the column so that it can be raised and lowered and cannot be rotated in the horizontal direction, and that is connected to the upper end of the cylinder by a connecting member through a slit formed in the side of the column; It is characterized by comprising a rotating member provided on the outer periphery of the bathtub so as to be horizontally pivotable, and a bathing riding part supported by the rotating member.

"Operation" When the cylinder is expanded or contracted, an elevating member connected to the cylinder via a connecting member and fitted to the outer periphery of the support column moves up and down. When the riding part is pressed in the radial direction, the rotating member rotates around the outer periphery of the elevating member, allowing the riding part to rotate.

"Embodiment" An embodiment of this invention will be described below with reference to FIGS. 1 to 3.

FIG. 1 is a longitudinal sectional view of a bathing lift according to this invention. In the figure, reference numeral B indicates a bathtub and F indicates a washing area. A pedestal 31 is installed in the washing area F. A hollow square support 32 extending in the vertical direction is fixed to the pedestal 31. A hydraulic cylinder 33 is erected within the support column 32 with its lower end fixed to the bottom side. The hydraulic cylinder 33 is fixed to the pedestal 31 by being fastened together with the square column 32.
A hydraulic unit 34 (operating means, which will be described in detail later) is provided on the side of the pedestal 31 to extend and retract the hydraulic cylinder 33. The pedestal 31 and the hydraulic unit 34 are covered by a cover 35 in a liquid-tight manner.

A ring-shaped lifting member 3 is provided on the outer periphery of the square support 32.
6 is arranged so that it can be raised and lowered and cannot be rotated in the horizontal direction by guiding upper and lower rollers 37 supported by the lifting member 36 along the corners of the pillars 32. The upper and lower rollers 37 are not arranged on all sides, and on the upper side, as shown in FIG. 2a, the arm 4
One of the three sides is omitted, and on the lower side, as shown in FIG. 2b, one of the opposite sides of the arm 43 is omitted. This is done in consideration of the moment acting on the elevating member 36 when a patient or the like gets on the chair portion 44, and is intended to reduce weight by omitting the roller 37 on the side where little force is applied. Lifting member 3
6 is connected to the tip of the piston rod 33a of the hydraulic cylinder 33 by a connecting member 39 passing through a slit 38 formed on the side of the column.

A ring-shaped rotating member 4 is provided on the outer periphery of the elevating member 36.
0 is provided so as to be freely pivotable in the horizontal direction via bearings 41 arranged above and below. Seal members 42 are interposed on the upper and lower sides of the bearing 41.

An arm 43 is bolted to the rotating member 40, and a chair portion (bath riding portion) 44 is attached to the outwardly projecting tip of the arm 43 on which a patient or the like to be bathed is placed. . Further, a plate member 45 is fixed to the lower end of the rotating member 40 on the opposite side of the chair portion 44 . The plate material 45 has a hole 45a.
A rod 46 supported by the elevating member 36 is inserted into the hole 45a to restrict the rotation of the rotating member 40. A plurality of plate materials 45 having the holes 45a are provided at intervals of 90 degrees or 180 degrees in the circumferential direction.

The hydraulic unit 34 that expands and contracts the hydraulic cylinder 33 has a hydraulic pump 52 driven by a check valve 50 and a motor 51 interposed in an outgoing path 49 connecting an oil reservoir 48 to the hydraulic cylinder 33, as shown in FIG. In addition, a solenoid valve 54 and a throttle valve 55 are interposed in the return path 53. Further, the outgoing path 49 and the incoming path 53 are connected to each other by a bypass 57 in which a relief valve 56 is interposed.

In the hydraulic unit 34, by energizing and de-energizing the solenoid valve 54, hydraulic pressure can be introduced into the pressure chamber 33b of the hydraulic cylinder 33, and the pressure in the pressure chamber 33b can be released. The hydraulic cylinder 33 can be expanded and contracted using the hydraulic cylinder 33.

Next, a method for bathing a patient or the like using the above-mentioned bathing lift will be explained.

Patients brought to the bathroom in wheelchairs etc. should be undressed and
It is moved to the chair part 44 of the bathing lift. The patient is washed on the washing area F while being placed on the chair part 44, and then the patient is rotated together with the chair part 44 and moved to the bathtub B side, and is lowered down to take a bath.

At this time, since the user must climb over the side wall _B1 of the bathtub B, it is necessary to temporarily raise the chair portion 44. To do this, first, by operating the hydraulic unit 34, the hydraulic cylinder 33 is extended and the elevating member 36 is raised. At this time, the elevating member 36
is supported by rollers 37 at the corners of the support column 32, and is prevented from tilting in the front, rear, left and right directions, ensuring smooth lifting and lowering and preventing unnecessary turning. Further, the moment acting on the elevating member 36 caused by placing a patient on the chair portion 44 is borne by the roller 37 and is not applied to the hydraulic cylinder 33.
is not easily damaged. As mentioned above, the elevating member 36
At the same time, the rotating member 40 and the chair portion 44 are raised integrally.

Next, the rod 46 is moved downward and pulled out from the hole 45a of the plate 45. In other words, the rotation of the rotating member 40 is unlocked. In this state, the caregiver presses the chair part 44 in the radial direction, and moves the patient, etc. placed on the chair part 44, along with the chair part 44 integrally with the rotating member 40, about 180 degrees around the outer circumference of the elevating member 36. Rotate it and position it above the bathtub B.

When the turning member 40 turns 180 degrees, the rod 46 faces the hole 45a of the next plate 45, and the rod 46 is biased by the spring 47 and automatically moves upward to enter the hole 45a. In other words, the lock is established again, and the rotation of the rotation member 40 and the chair portion 44 is restricted.

Next, the hydraulic unit 34 is operated to shorten the hydraulic cylinder 33 and lift the lifting member 36 and the chair portion 44.
etc. can be lowered to allow the patient placed on the chair portion 44 to take a bath.

Thereafter, after a suitable period of time has elapsed, the above-described operation is performed in reverse, and the entire chair portion 44 is raised to return the patient to the washing area.

Other Configuration Examples In the above embodiment, a square support post 32 is used, but a circular support post 32 may also be used. In this case, the rotation of the elevating member 36 is restricted by the side wall of the notch 38 formed on the side of the support column 32.
This is done by coming into contact with a connecting member 39 that passes through the notch 38.

Further, in the above embodiment, the notch 38 of the support column 32 is provided only on one side, but the notch 38 is provided on both sides, and connecting members 39 are provided on both sides so as to pass through the notches 38, so that the elevating member 36 is supported on both sides. It can also be done. This makes the elevating member 36 more stable. In this case, as shown in FIG.
2 can also be constructed by making two channel members 60 face each other.

In addition, in the above embodiment, a commonly used type of hydraulic cylinder 33 is used, but if a so-called telescopic type, in which another cylinder is built into the cylinder, is used, the stroke of the elevating member 36 can be reduced. It can be set for a long time.

"Effects of the invention" As explained above, this invention provides the following excellent effects.

Since the elevating member moves up and down along the support column, the riding part does not protrude back and forth or from side to side when going up and down.Furthermore, the riding part is configured to be able to fully rotate around the outer periphery of the elevating member. There are no unnecessary restrictions when installing a bathing lift.

When turning the riding section, it is sufficient to turn only the parts after the turning member, without including the support column and the elevating member, and it is possible to turn the riding part with a relatively weak force.

When a patient or the like is placed on the riding section, the moment applied to the elevating member etc. is received by the support column, and no moment is applied to the hydraulic cylinder. Therefore, the life of the hydraulic cylinder is extended.

Even if the height position of the elevating member changes, the elevating member is always fitted to the support in the same form and is prevented from falling forward, backward, left or right, and the elevating member can be raised and lowered smoothly at all times.

It is sufficient to fit the elevating member to the outer periphery of the support column in advance, and then connect the elevating member to the hydraulic cylinder disposed within the support column, thereby facilitating assembly.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of this invention,
Figure 1 is a longitudinal cross-sectional view of the entire unit, Figures 2a and b are cross-sectional views taken along lines A-A and B-B in Figure 1, Figure 3 is a configuration diagram of the hydraulic unit, and Figure 4 is a diagram of the hydraulic unit. FIGS. 5 to 7 are cross-sectional views of main parts showing other embodiments of the invention, and are views showing conventional examples of lifting lifts. 32... Support column, 33... Hydraulic cylinder, 34...
... Hydraulic unit (operating means), 36 ... Lifting member,
38...Slit, 39...Connecting member, 40...
Swivel member, 44...chair part (bath riding part).

Claims (1)

[Scope of utility model registration request] A hollow support provided extending in the vertical direction, a cylinder erected within the support and having its lower end fixed, an operating means for expanding and contracting the cylinder, and a cylinder movable up and down on the outer periphery of the support. an elevating member that is fitted in a horizontally unrotatable manner and connected to the upper end of the cylinder by a connecting member through a slit formed in the side of the support; and a rotating member provided on the outer periphery of the elevating member so as to be able to freely rotate in the horizontal direction. and a bathing riding part supported by the rotating member.