JPH067713Y2 - Lifting bath equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a bathing apparatus used for bathing a bather who needs a caregiver such as a physically handicapped person, an elderly person and a patient.

“Problems to be Solved by Conventional Techniques and Inventions” As a generally known lifting bath apparatus, as shown in FIGS. 4 and 5, the stretcher base 1 is fixed and the bathtub 2 is fixed.
There is a type in which the tub 5 is moved up and down by the drive mechanism 3, or conversely, a type in which the bathtub 5 is fixed and the stretcher base 6 is moved up and down by the drive mechanism 7 as shown in FIG.

The former bathing device does not cause anxiety to the patient because the stretcher base 1 is fixed, and when the caregiver massages the patient while taking a bath, he / she does not have to bend his / her waist unnecessarily, which reduces fatigue. There is an advantage such as. However, on the other hand, when the caregiver massages while the bathtub 2 is raised and the patient is taking a bath, the edge of the bathtub 2 is raised, which is difficult for a short caregiver to perform. .

On the other hand, the latter bathing device is advantageous in terms of energy saving because it does not raise and lower a heavy bathtub but raises and lowers the lightweight stretcher base 1 side. The structure of the bathtub or the like is simple and the cost can be reduced. While having the advantage, the stretcher base 6 moves up and down, which gives the patient anxiety. When a caregiver massages a patient in a bathing state (low position), he / she must bend his waist and back, which is a drawback.

Therefore, as shown in FIG. 7 and FIG. 8, both types of characteristics described above are introduced, and both the bathtub 10 and the stretcher base 11 are lifted up and down, and at the same time as the bathtub 10 rises, the stretcher base 11 descends, and conversely. A type has been proposed in which the stretcher base 11 rises when the bathtub 10 descends (see Japanese Utility Model Laid-Open No. 63-109863).

The characteristic of this bathing device is that the bathtub 10 does not rise so much (the stroke is about half of the conventional stroke), so that the edge of the bathtub 10 does not get in the way even when a massage is performed on a patient who is bathing. The stroke for lowering is only half of the conventional stroke, the height of the patient does not become so low, and the person who does the massage does not have to bend his waist or back too much. Further, the time required for the patient to be completely immersed in hot water is reduced to about half of the time required so far, which is advantageous in that work efficiency is increased.

However, the bathing device has a complicated structure and is costly. Further, the mechanism 12 for raising and lowering the stretcher base 11 existing in the bathtub is connected to the mechanism 13 for raising and lowering the bathtub 10 via the connecting arm 14, so that the mechanism 12 for raising and lowering the stretcher base becomes large. However, there is a drawback that the depth of the bathtub 10 becomes shallow.

If the bathtub 10 is made deep to compensate for this drawback, the bathtub 1
The height of the edge 10a of 0 is higher than that of the conventional bathtub shown in FIGS. 4 to 6, and accordingly, the stretcher surface of the stretcher base 11 is also increased, and cleaning on the stretcher is performed. However, there is a problem that it becomes difficult to clean.

Further, since the height of the edge 10a of the bathtub is higher than that of the conventional one, even if the lifting stroke of the bathtub is reduced to about half of the conventional stroke, the effect is reduced to half.

Further, as an elevating type bathtub device capable of elevating and lowering both the bathtub and the stretcher base, for example, as described in JP-A-55-86458, only one drive cylinder is provided with an attachment member at the upper end thereof. Proposal of supporting the bathtub and supporting the stretcher base through a chain provided in an inverted U-shape and extending and retracting the drive cylinder to simultaneously adjust the bathtub and the stretcher base in opposite directions. Has been done.

However, in this type of lifting bath apparatus, there is a problem in that the bath height in the bath state cannot be freely changed because it is set at a position approximately half the upper end position of the stretcher base and the lower end position of the bathtub. there were.

That is, the upper height of the stretcher base is set to be almost the same as that of the stretcher because the stretcher needs to be transferred from the stretcher, and the lower end height of the bathtub is set to be substantially flush with the floor. It Then, the bath height in the bathing state is equal to the rising height of the bathtub and the descending height of the stretcher base, regardless of whether the caregiver can easily or difficultly massage the patient in the bathing state, As described above, the position is set to be approximately half the upper end position of the stretcher base and the lower end position of the bathtub.

In addition, in order to set the height of the bathtub in the bathing state to an arbitrary height, it is conceivable that both the bathtub and the stretcher are lifted and lowered by separate cylinders, but two driving cylinders are required, Moreover, it is necessary to control these cylinders in relation to each other, which causes a trouble of the control system.

The present invention has been made in view of the above circumstances, and its purpose is to simplify the structure without the need to make the bathtub deep, and to control the bathtub and the stretcher base at the same time with a single drive system, and to keep the bathing state. It is an object of the present invention to provide an elevating bath apparatus that can set the bath height to an arbitrary height.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a first parallel link type lifting mechanism (23) for lifting and lowering a bath (22) attached to a lower frame (21) and provided above. ), A pillar (30) standing upright on the lower frame and slidably and liquid-tightly penetrating the bottom of the bath, and a stretcher base (31) mounted on the upper end of the pillar and provided on the upper part A second parallel link type lifting mechanism (34) and a drive cylinder (41) attached to the first parallel link type lifting mechanism.
And a driven cylinder (40) that is attached to the second parallel link type lifting mechanism and forms a pair with the drive cylinder, and a communication passage (42) that connects the two cylinders to each other. When each stretcher is raised and lowered,
One of the driving cylinder and the driven cylinder expands and the other expands at the same time.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a schematic structure of a lifting bath apparatus according to the present invention, and FIG. 2 is a sectional view.

In the figure, reference numeral 21 is a lower frame, and a bathtub 22 is arranged above the lower frame, and the bathtub 22 is lifted and lowered by a first parallel link type lifting mechanism 23 attached to the upper part of the lower frame 21.

The first parallel link type lifting mechanism 23 includes the lower frame 21.
And mounting frames 25.2 fixed to the bathtub 22 respectively
6, the link arms 27, 27 have a structure in which the center portions of the link arms are pin-connected to each other and assembled in an X shape. One end side of the link arms 27, 27 is a mounting frame 25, 26
While being fixed to the
It is slidable in the longitudinal direction. In addition, the first parallel link type lifting mechanism 23 has link arms 27, 27.
A main cylinder 28 for performing an upright tilting operation is incorporated, and the main cylinder 28 is expanded and contracted by a hydraulic unit 29.

Further, 30 is a column that is erected on the lower frame 21. The column 30 slidably and liquid-tightly penetrates the bottom portion 22 a of the bathtub 22.

A stretcher base 31 is provided above the column 30. The stretcher 32 is guided to the stretcher base 31 by the rails 33,
It is designed to be fixed at a predetermined position by a stopper (not shown). The stretcher base 31 is not limited to this type, and the stretcher 32 may be assembled from the beginning.

The stretcher base 31 is lifted and lowered by a second link-type lifting mechanism 34 attached to the upper ends of the columns 30.

The second parallel link type lifting mechanism 34 has a structure similar to that of the first parallel link type lifting mechanism 23 described above. That is, the link arms 37, 37 are provided between the mounting frames 35, 36 fixed to the support column 30 and the stretcher base 31, respectively.
Have a structure assembled in an X-shape in which their central portions are pin-connected.

A driven cylinder 40 is interposed between the attachment frame 35 and the link arm 37 in the second parallel link type lifting mechanism 34. In addition, the first parallel link type lifting mechanism 2
3, a drive cylinder 41 is also interposed between the mounting frame 25 and the link arm. Both cylinders 40/4
1 are communicated with each other through a communication passage 42.

In addition, a member that may be immersed in the bathtub 22, for example, the column 30, the mounting frames 35 and 36, the link arm 37,
The cylinder 40 and the like are preferably made of a water resistant material such as stainless steel or plastic.

Next, the operation of the bathing apparatus will be described.

As shown in FIG. 1, a second parallel link type lifting mechanism 34
In the extended state, the stretcher 32 on which the patient is placed is transferred to the stretcher base 31.

By operating a switch (not shown), the hydraulic unit 29 is driven, and the main cylinder 28 is extended by sending pressure oil, and the bath 22 via the first parallel link type lifting mechanism 23.
Raise.

At the same time, the drive cylinder 41 extends and the capacity of the pressure chamber in the drive cylinder 41 increases, so that the shortage of pressure oil is sent from the pressure chamber of the driven cylinder 40. Along with this, the stretcher base 32 descends.

That is, the bathtub 22 rises and, on the contrary, the stretcher base 31 descends, so that the patient is in a bath state as shown in FIG.

When the bathing is completed, the pressure chamber of the main cylinder 28 is opened by operating the switch of the hydraulic unit 29, the pressure oil is drained from the pressure chamber to shorten the main cylinder 28, and the bath 22 is lowered by its own weight. At this time, the drive cylinder 41 is shortened,
The pressure oil in the internal pressure chamber passes through the communication passage 42 and the driven cylinder 4
Then, the stretcher base 31 is raised to reach the state shown in FIG. 1 again.

When raising the stretcher 31 as described above, the magnitude of the load applied to the drive cylinder 41 and the load applied to the driven cylinder 40 becomes a problem. Since the load of the bathtub 23) at this time is heavier, the drive cylinder 41 performs the shortening operation without any trouble and the driven cylinder 40 extends.

FIG. 3 shows a second embodiment of the present invention.

This embodiment is different from the above-mentioned embodiment in that the driven cylinder 400 is incorporated in the support column 300.

By doing so, the space can be effectively used, the overall size can be made compact, and the communication passage 42 can be shortened.
The movement itself of the stretcher base 31 and the bathtub 22 is the same as the first movement.
It is similar to the embodiment.

[Advantage of the Invention] As described above, according to the present invention, the drive source of the second parallel link type lifting mechanism, specifically, the driven cylinder, is connected to the drive cylinder through the hydraulic communication passage. Therefore, the second parallel link type lifting mechanism can be downsized. Therefore, it is not necessary to make the bathtub deep.

Because of this, the bathtub can be configured low, and as a result, when the caregiver massages the patient while taking a bath, the bathtub does not become an obstacle and does not become so low that the waist or back is bent.

Further, the power transmission to the driven cylinder only needs to guide the pressure oil of the drive cylinder incorporated in the parallel link type lifting mechanism for the bathtub, and since it has a simple structure, it has an advantage that it can be manufactured at low cost. In addition, the first link-type lifting mechanism and the second link-type lifting mechanism are simply moved up and down at the same time when the cylinders incorporated therein are connected through the communication passage, and the link-type lifting mechanism is operated. Arrangement of the mechanism and its size can be arbitrarily set, and therefore, in the designing stage, the bath height in the bathing state can be freely set to an appropriate height at which the caregiver can easily work.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, FIG. 1 is a sectional view of a bathing apparatus showing the first embodiment, FIG. 2 is a view for explaining another state of the bathing apparatus, and FIG. FIG. 6 is a sectional view showing a second embodiment, FIGS. 4 and 5 are side sectional views and front views showing a conventional example, and FIG. 6 is a side sectional view showing another conventional example, FIG.
FIG. 8 is a side sectional view showing still another conventional example. 21 …… Lower frame, 22 …… Bath, 23 …… First parallel link type lifting mechanism, 30 ・ 300 …… Posts, 31 …… Stretcher, 34 …… Second parallel link type lifting mechanism, 40… … Driven cylinder, 42 …… Communication passage.

Claims (1)

[Scope of utility model registration request] 1. A first parallel link type lifting mechanism (23) attached to a lower frame (21) for lifting and lowering a bathtub (22) provided in the upper portion, and a bottom portion of the bathtub which is installed upright on the lower frame. Posts (3 that penetrate slidably and liquid-tightly)
0, 300), a second parallel link type lifting function (34) for lifting and lowering a stretcher base (31) attached to the upper end of the column, and attached to the first parallel link type lifting mechanism. Drive cylinder (41), a driven cylinder (40, 400) attached to the second parallel link type lifting mechanism and paired with the drive cylinder, and a communication passage (42) for connecting the two cylinders to each other. ), And when the bathtub and the stretcher are respectively moved up and down, one of the drive cylinder and the driven cylinder expands and the other shortens at the same time.