JPS6014855A - Dental treating chair - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to improvements in dental treatment chairs.

- Cereal and dental treatment chairs usually have a headrest above the backrest that can be adjusted in and out of position to accommodate the sitting height of the patient.

By the way, when designing a dental treatment chair, the height of the backrest is determined based on the standard sitting height of the patient, so in the case of a patient who sits extremely high, the height of the backrest is determined from the shoulder to the nape of the neck. The patient fell off the backrest and headrest, making it difficult to obtain a stable treatment posture. For this reason, conventionally, Japanese Utility Model Application Publication No. 58-46322 proposed a treatment chair structure having a sub-backrest that can be interposed between the backrest and the headrest as needed.
However, since the sub-backrest only has the effect of acting as an extension of the backrest, it cannot necessarily be used effectively by high-seating people who have individual differences in the positional relationship between the skull, scapulae, and tibia. Ta.

The purpose of the present invention is to provide a structure that can reliably hold the entire body of a high sitting person, in view of the above-mentioned medical problems for high sitting people. We propose that a dental treatment chair with a removably attached headrest be equipped with a neck rest pad that can be slidably adjusted along the mounting plate of the headrest and can be adjusted in a direction substantially perpendicular to the plane of the backrest. It is something.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, details of embodiments of the present invention will be explained with reference to the drawings.

FIG. 1 is an overall perspective view of a dental treatment chair according to the present invention, in which a backrest 3 that can be tilted about a fulcrum shaft 2 is provided at the rear of a seat 1 that can be moved up and down while a patient is placed thereon. A headrest 4 is attached to the top of the rest 3. That is, the headrest 4 has a mounting plate 6 whose lower end can be inserted into the mounting hole 5 on the upper surface of the backrest 3 shown in FIG. 2, and a pad that can be applied to the back of the patient's head at the upper end of the mounting plate 6. It has 7. therefore,
By simply adjusting the insertion depth of the mounting plate 6 into the mounting hole 5, the height of the pad 7 can be obtained in accordance with the sitting height of the patient.

The dental treatment chair of the present invention also includes a neck pad 8 that is attached to the mounting plate 6 and used when treating a patient with a high sitting height. This neck pad 8 has a support adjustment mechanism 9 shown in FIG.
The support adjustment mechanism 9 has a sliding tube 10 that is loosely fitted to the mounting plate 6, and the inner surface of the sliding tube 10 is elastically attached to the surface of the mounting plate 60. The leaf spring that presses against the spring] l is fixed. Therefore, the sliding tube 10 can be slid in the mounting 4 and 6 by pushing vertically by hand, and can be stopped at any sliding position. Further, the support adjustment mechanism has a parallel link mechanism that connects the mounting bracket 12 on the outer surface of the sliding tube 10 and the bracket 11u on the back surface of the neck pad 8, and four links forming the parallel link mechanism. An adjustment screw 16 with an adjustment knob 15 is inserted through the intermediate joints 14A to 14D @b. Therefore, by manually rotating the adjustment knob 15, the distance between the mounting bracket 12 and the racket 13, in other words, the position of the neck rest 8 in the direction approximately perpendicular to the plane of the crest 3 can be adjusted. You can adjust the koma.

Since the illustrated embodiment has the above-described structure, when treating a patient with an extremely high sitting height, the sliding tube 10 of the neck rest pad 8 can be attached to the mounting plate 6 of the headrest 4 as shown in FIG.
, adjust the position of the sliding tube 10 in the direction of arrow X along the mounting plate 6, and operate the adjustment knob 15 to adjust the neck pad 8 in the direction of arrow Y. It is possible to hold the parts firmly.

As is clear from the above explanation, according to the present invention, not only a comfortable treatment posture can be obtained even for a patient with an extremely high sitting height, but also an adjusted state according to the patient's bone structure can be obtained.
To provide a dental treatment chair that can stably hold a patient's body even if there are individual differences among patients.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view of a dental treatment chair according to the present invention, FIG. 2 is an exploded perspective view of essential parts of the same dental treatment chair, FIG. 3 is a perspective view of a neck rest pad support adjustment mechanism, and FIG. 4 Here is a diagram of how the dental treatment chair was used. 3...Backrest, 4...Headrest, 6.
... Mounting plate, 8... Neck pad, 9... Support adjustment mechanism. Figure 4

Claims (1)

[Claims] 1) In a dental treatment chair in which a headrest is removably attached to the upper part of the backrest, a neck rest that can be slidably adjusted along the mounting plate of the headrest and can be adjusted in a direction approximately perpendicular to the plane of the backrest. A dental treatment chair characterized by being equipped with a pad.