JPS6033962Y2 - Legrest device for medical chairs for the disabled - Google Patents

Description

[Detailed description of the invention] The present invention was developed specifically for use in dentistry, but it also relates to a leg rest device for a medical chair for the handicapped, which can also be applied to internal surgery and other applications. This invention relates to a leg rest device for a medical treatment chair for the handicapped, which is divided into left and right parts to form a left leg rest and a right leg rest, and both leg rests are configured to be rotatable separately.

Conventionally, medical chairs for the disabled have been known that have a single leg rest that can be rotated in the left and right directions together with the underseat and backrest. To the best of the knowledge of the applicant's company, a type in which a left leg rest and a right leg rest are formed and both leg rests are separately rotatable has not yet been proposed.

In other words, the abnormal body shape seen in patients with cerebral palsy is not limited to the upper body, but also noticeably appears in the legs, and conventional leg rests do not stabilize the legs, and the instability of the legs causes the upper body to become unstable. The patient's body also becomes unstable, resulting in pain for the patient and, at the same time, inconveniences such as being unable to maintain a stable body shape.

This invention was developed by focusing on the above points, and its purpose is to make the leg rest a left leg rest and a right leg rest, and the left leg rest and the right leg rest are configured to be rotatable. At the same time, by providing a restraining structure to separately hold these immovable positions and rotational positions of the desired plane, it is possible to hold the abnormally shaped left leg, right leg, or both legs in a comfortable state. To provide a leg rest device for a medical treatment chair for the handicapped, which is capable of holding a stable body shape for medical treatment.

Next, an embodiment of the present invention which may be distantly related to the above object will be described in detail with reference to the accompanying drawings.

Figure 1 is a conceptual diagram, where A is the base, B is the hydraulic mechanism housing, C is the tilt support, D is the operating mechanism housing, E is the underseat, F is the backrest, G is the headrest,
H□ indicates the left leg rest, H2 indicates the right leg rest, and the left leg rest H1 and the right leg rest H2
are configured to be able to rotate independently, that is, to be approximately horizontal with the underseat E, to be tilted steplessly downward from the horizontal position, and to maintain a desired tilted position.

Figure 2 is a side view of the device of the present invention, and Figure 3 is a plan view, where E is the undersheet, Hl is the left leg rest, l-I2 is the right leg rest, 1 is the undersheet board, and 2 is the left leg rest. A leg rest board 3 indicates a right leg rest board. The left leg rest board 2 and the right leg rest board 3 are rotatably provided on the undersheet board 1 via a plurality of hinges 4, respectively. There is.

Reference numeral 5 indicates two control rods, and the base end of the control rod 5 is attached to a support plate 6 fixed to the back surface of the undersheet substrate 1.
The left leg rest board 2 and the right leg rest board 3 are connected to the left leg rest board 2 and the right leg rest board 3 at the tip thereof.
It is configured so that it can be rotated and its rotational position can be maintained.

That is, an example of the device is as follows. Reference numeral 8 indicates an opening 2 that is bored into the left leg rest board 2 and the right leg rest board 3, and 3. A hanging plate 9 consisting of a set of two plates fixed to the inside of each left and right side, 9 is a shaft portion 9a between the hanging plates 8 consisting of a pair of two plates.
The control mechanism housing 9 is rotatably provided through the control mechanism housing 9, and a guide hole 9b is bored at the front and rear of the control mechanism housing 9. The distal end portion of the control rod 5 is fitted in so as to be movable back and forth.

Reference numeral 10 denotes a control plate having a hole 103, into which the control rod 5 is loosely fitted and one end 10. is inserted into the hole 9c of the control mechanism housing 9, and the control plate 1
A coil spring 11 is stretched between the control mechanism housing 9 and the inside of the front plate L (note, the side where the underseat E exists).

12 is bundle 12. The bundle 121 is split horizontally into the depending plate 8 in a state where the bundle 121 is located outside the depending plate 8.

Further, the rotation shaft 12 has a protrusion 12. which comes into contact with the other end 10o of the control plate 10. is fixed.

In the above configuration, when the left leg rest H□ and the right leg rest H2 are in a substantially horizontal position with the underseat E, as shown in FIGS. As a result, the control plate 10 is inclined with one end portion 10b as a fulcrum, and the hole 10 has an oblique shape and is held by the hole edge being pressed against the control rod 5.

In this state, both legs of the disabled person are placed on the left leg rest H1.
However, if the right leg is in an abnormal shape and cannot be placed in a comfortable position, the operator should slightly rotate the bundle 121 in the direction of arrow a.

In this case, the other end 10c of the control plate 10 is slightly pushed through the protrusion 12b, and as a result, the control plate 10 rotates slightly in the direction indicated by the arrow in FIG. ．． ．． The degree of pressure contact with the control rod 5 by the hole edge is loosened, and the right leg rest H2 gradually rotates downward.

Then, when the abnormally shaped right leg is comfortably supported by the right leg rest H2, the bundle 12a is
By rotating in this direction, the control rod 5 is stopped by the control plate 10, so that the downward rotation position of the right leg rest H2 is maintained.

In addition, FIGS. 46 and 5b show a state in which the control plate 10 is at right angles to the control rod 5, and the control rod 5 is free, and FIG. 5c shows the right leg rest H2. (or the left leg rest H has been done.

Although one embodiment of the present invention has been described above, the present invention is not limited thereto, and may be used in the following manner or may be modified in design.

(I) The degree of pressure contact of the control rod 5 by the control board 10 is reduced by the load of the left and right legs of the disabled person against the spring force of the coil spring 11, and when the spring force and the load are balanced, the operation is performed. bundle 12. It can also be stopped by operating the .

(n) The rotating shaft 12 may be configured to be rotatable via a hydraulic cylinder device.

(III) The left leg rest base plate 2 and the right leg rest base plate 3 may be configured to be rotatable directly via a hydraulic cylinder device.

Since the present invention provides the above-mentioned precautions, it has the effect of being able to comfortably and stably hold the abnormally shaped left leg, right leg, or both legs.

[Brief explanation of the drawing]

The drawings show one embodiment of the device of the present invention. Fig. 1 is a conceptual diagram, Fig. 2 is a side view, Fig. 3 is a plan view of the same, and Fig. 4a = 4.
Figure b is a cross-sectional plan view of an example of the restraining structure, and Figures 5 and 5o are longitudinal side views of the same. 1...Undersheet board, 2...Left leg rest board, 3...Right leg rest board.

Claims (1)

[Scope of utility model registration request] A left leg rest board and a right leg rest board are pivotally attached to the front part of the undersheet board, and the left leg rest board and right leg rest board can be placed in a non-rotatable position and rotated at a desired angle. A leg rest device for a medical chair for a handicapped person, characterized in that a restraining structure is provided to hold each position separately.