JPS6151896B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a chair for otorhinolaryngology and other clinics, and more particularly to a chair for patients to sit in the otorhinolaryngology clinic, in which a doctor faces the patient for diagnosis and treatment, such as in an otorhinolaryngology clinic. The present invention relates to a chair suitable for clinics where medical treatment is performed.

Various patient chairs of this type have been proposed and put into use in the past, but in all of them, when the seat is raised or lowered according to the size of the patient, the head rest also moves up and down. Each time, the headrest and seat had to be adjusted so that the doctor's face was at eye level, and the trouble and effort involved was unimaginable.

Particularly in otorhinolaryngology clinics where doctors examine patients face-to-face, if they want to position the head rest according to the size of the patient, they may have to go behind the patient and move the head rest up and down, or You will have to go back to the front and check your position, and if it is still not in the correct position, you will have to repeat this process again. If the doctor does not do this, he or she will have to have a specialist stand by behind the chair where the patient is sitting. Therefore, it is desired to develop a patient chair that does not require the doctor to stand up from the chair and adjust the position of the head rest, and that allows the doctor to easily adjust the position without requiring an extra person. I came.

The present invention has been developed in view of this point, and is designed so that the position of the head rest is set in advance at the eye level of the doctor using the device, and only the seat can be raised or lowered.

Prior to the completion of the present invention, the present inventor invented and tested a chair in which a bar was raised from the base and a head rest was attached to the top of the bar, but this did not work when the chair was laid down. It was discovered that the head rest had some drawbacks, such as misalignment and difficulty in transporting it because it was difficult to remove, and as a result of further research to improve these problems, the present invention was completed. The feature is that the main body of the chair stands up at the rear end of the seat that is to be raised and lowered via a cylinder built into the base, and a guide with a concave cross section in the vertical direction is placed in the center of the back of the main body of the chair. The frame is fixed, and a vertically long through hole is drilled at the corresponding position of the chair main body and the guide frame, into which the support rod of the head holder described later is inserted, and on the other hand, it is slidably fitted into the groove of the guide frame. A head holder is attached to the upper end of the matching head holder through a support rod so that it can be moved up and down at a large angle, and between the lower end of the head holder and the base, the height of the face of the doctor using the Attach a chain of a predetermined length so that the position of the upper end substantially coincides with the position of the chain, and further fix one end of the chain to the head receiving attachment part, and fixing the other end of the chain to the head receiving attachment part. a fixed sprocket rotatably supported on the back surface of the chair body above the section; and a coil disposed below the fixed sprocket for tensioning a chain having one end fixed to the lower end of the chair body. This chair is fixed to the upper end of the back part of the main body of the chair via a fleece sprocket rotatably supported by a support plate fixed to the other end of the spring.

The present invention will be described in more detail below with reference to the illustrated embodiments.

In the figure, reference numeral 1 denotes a base having a built-in hydraulic cylinder 2 for raising and lowering, and a seat part 3 to be raised and lowered is attached to the upper part of the base 1 via the hydraulic cylinder 2. Therefore, the cylinder 2 allows the seat portion 3 to move up and down.

4 is a chair main body, and the chair main body 4 is the seat part 3
It stands upright from the rear end, and a guide frame 5 having a concave cross section is vertically fixed to approximately the center of the rear surface. Further, the chair main body 4 is provided with a vertically elongated hole 4a in the center thereof, into which a support rod to be described later is inserted. Further, a head receiving portion 6 is attached to the guide frame 5 and is slidably fitted into the groove 5'.
The guide frame 5 also has a long hole 5 in the center thereof, which is aligned with the long hole 4a of the chair main body 4, for inserting a support rod to be described later.
A is drilled. In addition, the head receiving portion 6
A head support 6b is attached to the upper end of the head support 6b via a support rod 6a so as to be able to move up and down at a large angle, and a chain 6C of a predetermined length is attached between the lower end of the head support 6b and the base 1. The chain 6c
The length is set to a predetermined length so that the height of the face of the doctor using the device and the position of the upper end approximately match. Further, one ends of chains 7, 7 are fixed to both sides of the head receiving portion 6, respectively. In addition, the chain 7,
The other end of 7 is provided with fixed sprockets 8, 8 which are rotatably supported on the back surface of the chair main body 4 above the part fixed to the head receiving part, and below the fixed sprockets 8, 8. Fleece sprocket 9 rotatably supported by support plates 9a, 9a fixed to the other end of coil springs 10, 10 for tensioning the chain, one end of which is fixed to the lower end of the chair main body 4; 9, the chair main body 4
It is fixed to the upper end of the.

As a result, the head holder 6b attached to the head holder 6 via the support rod 6a so as to be able to move up and down,
Even if the chair main body 4 moves up and down, it always maintains a constant position.

To explain how to use the chair of the present invention having such a configuration, first, when the chair of the present invention is delivered to a clinic, the main body 4 of the chair is adjusted so that the patient's face is at eye level in the clinic where the chair will be used. The head support 6b protruding from the front is adjusted by tilting up and down, and then fixed in position. Once the position of the head rest is determined in this way, there is no need to change it at all thereafter unless this chair is used by another doctor.

Thus, when examining a patient, the patient is seated on the seat 3, and for example, in the case of a patient who is small and has a low sitting height, such as a child, the seat 3 is raised by turning on a foot switch or other electric switch. If the seat section 3 stops rising when the patient's head reaches the position of the head rest 6b, treatment and diagnosis can be performed in a constant posture. On the other hand, if the patient has a high sitting height,
Since the patient's head is above the head rest 6b when sitting, the seat section 3 is lowered and the patient's head is moved to a position where it touches the head rest 6b.

As mentioned above, according to the chair of the present invention, regardless of whether the patient is an adult or a child, by simply moving the seat up and down, the patient's face can always be kept at the same level as the doctor's eyes. Examinations can be performed with posture. In addition, there is no need for the doctor to go around behind the patient to adjust the position as in the past, and there is no need for any extra person to make the adjustments.

Furthermore, in the chair of the present invention, one end of the chain is fixed to the head receiving part via a fixed sprocket and a fleece sprocket, and the other end is fixed to the main body of the chair, and the chain is tensioned with a coil spring. Because of this, the raising and lowering of the seat section is extremely quiet and smooth, and is highly effective in practical use.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the chair of the present invention in a lowered state;
FIG. 2 is a perspective view similarly showing the raised state, and FIG. 3 is an explanatory diagram of the state in which the head receiving portion is attached to the guide frame. 1...Base, 2...Hydraulic cylinder, 3...Seat section, 4
...chair main body, 5...concave groove, 6...head receiving part, 7...
Chain, 8...fixed sprocket, 9...fleece sprocket, 10...coil spring.

Claims (1)

[Claims] 1. A chair main body 4 is erected at the rear end of the seat section 3 which is to be raised and lowered via a cylinder 2 built into the base 1, and a guide frame 5 having a concave cross section in the vertical direction is installed in the center of the back surface of the chair main body 4. and the chair main body 4 and the guide frame 5
The support rod 6a of the head holder described later is placed in the corresponding position of each of the
On the other hand, a head holder 6 is inserted through a support rod 6a at the upper end of the head holder attachment part 6 which is slidably fitted into the groove 5' of the guide frame 5.
b is attached so that it can be tilted up and down at a large angle, and a predetermined position is provided between the lower end of the head receiving portion 6 and the base 1, so that the height of the face of the doctor using the device and the position of the upper end substantially match. A chain 6c having a length of
The other end is rotatably supported by a fixed sprocket 8, 8 on the back surface of the chair main body 4 above the part fixed to the head receiving part, and the fixed sprocket is disposed below the fixed sprocket 8, 8. , one end is the chair body 4
Through fleece sprockets 9, 9 rotatably supported by support plates 9a, 9a fixed to the other ends of coil springs 10, 10 for tensioning the chains 7, 7 fixed to the lower ends of the A clinic chair that is fixed to the upper end of the back part of a chair main body 4.