JPS639295Y2 - - Google Patents

Description

[Detailed description of the invention] Technical field The present invention relates to an improvement of the operating mechanism for gargling in a dental treatment device, and particularly to a dental treatment device equipped with a spittoon for gargling and a chair for treating a patient. When the patient gargles, the height of the chair is automatically adjusted so that the relationship between the patient's head position and the height of the spittoon part is always constant regardless of the patient's sitting height. and automatically move the spittoon to a position where it is easy to gargle;
This is intended to improve the operability of the dental treatment device when gargling.

Conventional technology Conventionally, there are two types of gargle devices used in dental treatment equipment: a chair-mounted tamp type in which the spittoon is attached to a vertically movable member of the chair, and a separate type in which the spittoon and chair are separated. In the former method, the spittoon moves up and down in the same way as a chair, so the drain hose has to be moved, which has the disadvantage that the flow of drainage tends to be poor. Additionally, since the spittoon is fixed, it is difficult for tall people or children to gargle. The latter one solves the drainage problem because the spittoon is fixed, while the former one because the position of the spittoon remains fixed, although the height of the chair is adjusted according to the patient's height. Similarly, it has the disadvantage that it is difficult for tall people or children to gargle. However, with this type of chair, although it is possible to raise the chair manually for children who are short, it is time consuming and difficult to operate.

In order to solve the above-mentioned drawbacks of the prior art, the applicant first developed a separate type gargling device in which the spittoon and the chair are separated, and the height position of the spittoon and the height position of the patient's head are adjusted. We have proposed a dental treatment device that can maintain a predetermined relationship with the patient regardless of the patient's height, thereby making it easier for all patients to perform gargling motions.

1 and 2 are schematic configuration diagrams for explaining an example of a dental treatment apparatus previously proposed by the applicant. In the figures, 10 is a dental treatment chair, 20 is a spittoon, and the dental treatment chair is The reference numeral 10 consists of a headrest 11, a backrest slide part (back plate) 12, a backrest frame part 13, a contour seat part 14, a base 15, etc., and the contour seat part 14 is connected to the base 1.
5, the backrest slide part 12 can be moved up and down with respect to the backrest frame 13, or the rest head 11 can be moved up and down with respect to the backrest slide part 12.
It is attached so that it can be moved up and down. In addition,
As the initial setting position, the chair is at its lowest position,
In addition, the highest position of the head or back plate is the easiest to gargle, and the height of the spittoon part is designed at this position.

When treating a patient, the operator first adjusts the height of the headrest 11 or backboard 12 according to the patient's body shape, and then adjusts the height of the chair and the backrest to a position that is easy to examine. Although it is set,
At this time, the amount of movement is detected in synchronization with the vertical movement of the safety table or backboard and the vertical movement of the chair. In FIG. 3, numeral 31 indicates a potentiometer as an example of a device for detecting the amount of vertical movement of the safe table or the back plate, and these are used to determine the height of the safe table, that is, the position of the patient's head. Detected as an amount of electrical change. If you want the patient to gargle during a medical examination, etc., turn on the gargling switch _S1 , the back plate 12 will rise to the gargling position, and at the same time the chair will move up and down. Since the potentiometers 32 are operating in synchronization, the detection outputs of these potentiometers are compared by the comparators 33 and 34 and controlled so that X ₂ −X ₁ =Y ₂ −Y ₁ . l = l', and the vertical change of the headrest (or backboard) can be compensated for by the vertical change of the chair, and therefore, when gargling, the patient's head is always in the most convenient position for gargling. be able to. In other words, if the headrest or backboard is lowered by, say, 5cm from its highest position, the vertical position of the chair will be raised by 5cm from its lowest position.If you do this, the head position will always be the same. The height relationship l between the position of the spittoon and the spittoon can be kept constant, making it easier for both tall and short people to gargle. In addition, since the spittoon part is fixed, it becomes easy to dispose of the drainage pipes, etc. that accompany it.

Therefore, the above-mentioned dental treatment device can always keep the position of the patient's head and the spittoon constant regardless of the patient's body shape, etc., and always set the height position where it is most convenient for all patients to gargle. However, in the above-mentioned dental device, the position of the spittoon is fixed, so the patient has to move his head to the position of the spittoon when gargling. However, the operability was not always satisfactory.

Purpose The present invention is a further improvement of the dental treatment device in the prior art as described above.In particular, in the dental treatment device as described above, when gargling, the spittoon is automatically moved to a position where it is easy to gargle. This is intended to improve the operability of the dental treatment apparatus.

Configuration Figure 4 is a schematic configuration diagram for explaining one embodiment of the dental treatment device according to the present invention. Reference numbers are given. Therefore, in the present invention, the spittoon 20 is installed on the rotating arm 21, and when gargling, the switch _S1 shown in Fig. 3 is turned on.
When turned on, the rotating arm 21 rotates and the spittoon 20 is moved to a position where it is easy to gargle, for example, in front of the patient.

FIG. 5 is an enlarged configuration diagram for explaining an example of a rotating mechanism for rotating the rotating arm 21, that is, a fourth
This is a detailed view of part A in the figure. In the figure, 22 is the rotating arm 2.
A water supply pipe to the spittoon 20, a drainage pipe from the spittoon 20, etc. are arranged through the pipe 22. 2
3 is a coupling member for transmitting rotational force to the pipe 22; 24 and 25 are bearings; 2;
6 is a motor; 27 is a gear; the gear 27 meshes with a gear 28 provided on the coupling member 23; when the motor 26 is driven, the rotation of the motor 26 is caused through the gears 27 and 28; is transmitted to the coupling member 23, and the coupling member 23 is rotated. The upper end of the coupling member 23 is formed into a tapered shape as shown in the figure, and a thread 23a is cut into the tapered part, and a nut 2 is inserted into the thread 23a.
9 is configured to be screwed in. Therefore, when this nut 29 is screwed in, the connection between the pipe 22 and the coupling ring 23 becomes tighter, and when it is loosened, the connection between the pipe 22 and the coupling ring 23 becomes looser, so the tightness of the nut 29 can be adjusted. By doing this, the coupling force between the coupling ring 23 and the pipe 22 can be adjusted, and the rotating arm 21 is rotated by rotating the motor 26 as described above.
When rotating, if the rotating arm 21 hits something (for example, a patient), the rotating arm 21 can be stopped on the spot and only the coupling 23 can be rotated idly, which helps prevent danger. ,Therefore,
As the motor 26, a very common motor, in other words a motor without a torque limit function, can be used.

FIG. 6 is a diagram showing an example of an electric circuit used to implement the present invention. In the figure, 31 and 32 are potentiometers 31 and 32 tuned to the height of the back plate, respectively, as in the case of FIG. 3. Potentiometers 32 and 35 synchronized with the vertical movement of the chair are potentiometers for setting the height of the chair, 36 is a potentiometer for setting the height of the back board, and 37 is a potentiometer synchronized with the height of the back board, S ₂ is a memory switch,
Ly ₁ and Ly ₂ are relays for moving the chair up and down, Ly ₃ and Ly ₄ are relays for rotating the spittoon, Ly ₅ and Ly ₆ are relays for raising and lowering the back board, and Ls ₁ to Ls ₆ are limit switches. Accordingly, in the present invention, when gargling switch _S1 is turned on, the back plate 12 is turned on as described above.
As soon as you get up to the gargling position, the chair moves up and down and automatically adjusts to the height that is most convenient for gargling.
At the same time, the relay Ly ₃ is activated, the spittoon rotating arm 21 rotates, and the spittoon 20 is moved to a position where gargling is most convenient, for example, in front of the patient.
Then limit switch Ls ₃ operates and stops.
After gargling, when switch S ₂ is turned on, the backboard and chair return to their original positions, but at that time, relay Ly ₄
operates and the spittoon returns to its original position, and is stopped at that position by limit switch _Ls4 .

Effects As is clear from the above explanation, according to the present invention, when gargling, the spittoon automatically moves to a position where it is easy to gargle, and after gargling, it automatically returns to its original position. Work becomes much easier.

[Brief explanation of the drawing]

1 and 2 are schematic configuration diagrams for explaining an example of a conventional dental treatment device, FIG. 3 is an electric circuit diagram thereof, and FIG. 4 is an embodiment of the dental treatment device according to the present invention. FIG. 5 is an enlarged view of part A in FIG. 4, and FIG. 6 is a diagram showing an example of an electric circuit suitable for carrying out the present invention. 10...Dental treatment chair, 11...Antodai, 12
...Back crest slide section, 13... Back crest frame section, 14... Contour seat section, 1
5...Base, 20...Spitzton, 21...Rotating arm.

Claims (1)

[Scope of utility model registration request] A dental treatment apparatus comprising a spittoon supported by a rotating arm and a chair for treating a patient, the chair having means for adjusting the height of a rest or backrest, and a means for adjusting the height of the chair. The height of the chair is automatically adjusted so that the patient's head is always at a constant height relative to the spittoon when gargling, and the rotating arm is rotated. A dental treatment device characterized in that the spittoon is moved to a position where it is easy to gargle.