JPH058989Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention is mainly used for dental treatment chairs.
It is not just a chair used for rest or comfort, but a chair used by dentists and practitioners to diagnose and treat people who are sitting or lying down.
It is used to perform some kind of interpersonal treatment, and in detail, it is used to physically and mentally affect the patient or other person being treated. The present invention relates to a treatment chair equipped with a sound device so that patients can feel relaxed by relieving their nervousness, and can receive a prescribed treatment in comfort and with less fatigue.

(Prior Art) As this type of treatment chair equipped with an acoustic device, the one disclosed in, for example, Japanese Utility Model Publication No. 11659/1983 has been known. The device disclosed in this publication is aimed at a dental treatment chair, and has a built-in speaker in its headrest, which emits music or sends low-frequency acoustic energy to the speaker to create a comfortable feeling. This device transmits sound accompanied by mechanical vibrations to the skull to cancel out unpleasant cutting sounds caused by the handpiece.

(Problem to be solved by the invention) In the case of the conventional treatment chair equipped with a sound device as described above, the sound is only transmitted directly to the ears of the patient, so it is difficult to relax the whole body. This is still insufficient, and speakers often fail to produce the desired acoustic effects, especially when treatments are performed on the head, such as hairdressing and hairdressing.

In addition, the control devices of the player, power supply device, amplifier, etc. connected to the speaker are, for example, as described in Japanese Utility Model Application Publication No. 1981.
As shown in Gazette No. 98219, the electrical outlet is not attached to the chair body including the seat and headrest, nor to the spine support that is attached to the chair body in dental treatment chairs as an integral part, but is installed in a separate location away from the chair. This not only makes the treatment room or other procedure room look untidy, but also makes it even more untidy due to the long electrical wiring, and there is also the inconvenience of people getting their feet caught in the wiring.

Furthermore, the main body of the treatment chair is equipped with various operating tools such as sound adjustment tools, power switches, muting switches to temporarily reduce or mute the volume for conversation and notification of treatment details, etc. In other words, it was difficult to operate because it was not close to the practitioner.

This idea was made in view of the above circumstances,
It allows the person being treated to relax over the whole body, so that the person being treated does not feel discomfort, fatigue, or pain even during long-term treatments, and it also makes it easier for the practitioner to carry out the prescribed treatment. The purpose of the present invention is to provide a dental treatment chair with an acoustic device that can perform the following functions.

(Means for solving the problem) The dental treatment chair with an acoustic device of the present invention has a seat that can be raised and lowered freely by a seat lifting device built into the base, and a seat that is connected to the seat so that the inclination angle can be changed freely. An electro-mechanical vibration transducer that generates bodily vibrations is attached to the backboard sheet, and a speaker that generates sound is attached to the headrest that is connected to the head side end of the backboard sheet so that the inclination angle can be changed freely. A dental treatment chair equipped with an acoustic device, which is equipped with an operating tool for adjusting the amount of vibration of the electro-mechanical vibration converter and/or the volume of the speaker, wherein the electro-mechanical vibration converter and the speaker are Each is connected to a control section including separate amplifiers and a common sound source section, and is driven by an electric signal from the common sound source section, so that the bodily sensation of the electro-mechanical vibration converter changes in synchronization and harmony with the sound of the speaker. It is characterized by the fact that it is made to do so.

In addition, the control unit including separate amplifiers connected to the electro-mechanical vibration converter and the speaker, respectively, and a common sound source unit, such as a player, connected to the amplifiers, may be installed on the back of the seat portion or Attach to attached parts of the chair body, such as a spittoon support.

Further, an operating tool for adjusting the volume of the speaker and/or the vibration of the electro-mechanical vibration converter is attached to a side surface of the seat portion or an accessory member of the chair body such as a spittoon support.

Further, a switch capable of temporarily reducing or stopping the volume of the speaker and/or the vibration of the electro-mechanical vibration converter is provided at a position that is easy for the operator to operate, for example, on the side of the seat.

Furthermore, the on/off switches of the speaker and the electro-mechanical vibration converter are electrically linked to a power switch of a chair or a switch of a lighting device such as a dental light for illuminating a sitting person, or are operable by a foot controller. .

(Function) According to this invention, the electrical
By activating the mechanical vibration transducer, the mechanical vibrations are transmitted to the entire body of the sitting person through the bones of the sitting person, producing a pleasant sensory acoustic effect. This relieves the psychological and physical tension of the seated person, that is, the patient being treated, such as a dental patient, so they can relax and comfortably receive the intended treatment, while also being able to enjoy the treatment. It can also reduce the mental fatigue of people.

By activating the speaker attached to the head rest in synchronization with the electro-mechanical vibration converter mentioned above, it is possible to further relax the whole body of the patient, and especially in the case of dental treatment, it is possible to activate the speaker attached to the head rest. By canceling out the unpleasant cutting noise, you can also eliminate the feeling of fear.

The audible frequency of sound is approximately 100Hz
~13kHz, but at low frequencies below 100Hz, we can perceive vibrations in the air and objects rather than through our ears due to the vibration of the eardrum of sound waves. When the sound caused by the sound waves and the vibrations felt by the body, that is, the bodily sensations, are perceived to overlap, a very pleasant deep bass sound can be felt.

In the present invention, the electro-mechanical vibration converter amplifies the signal from the sound source section common to the speaker using a separate amplifier and reproduces the signal from the sound source section as mechanical vibration in the seat section. It is possible to freely synchronize or harmonize musically the sound from the speakers with the air vibrations.

Therefore, the present invention aims to improve the sound from the speakers,
The vibrations that are transmitted through the sheet and felt by the body from the electro-mechanical vibration transducer are controlled by electrical signals, usually musical signals, from the same sound source so that they are synchronously harmonized. This has the effect of relieving the mental and physical tension of the person being treated.

In addition, control units of amplifiers, players, etc., operating tools that adjust the volume of speakers and/or vibrations of electro-mechanical vibration transducers, temporarily reduce or stop the volume of speakers and the vibrations of electro-mechanical vibration transducers. By attaching a switch, etc. to ancillary parts such as the seat of the chair body or the spittoon support, there is no need to route electrical wires, and the treatment room can be organized in an attractive manner, while various operations such as volume adjustment can be controlled from the practitioner's side. It can be easily carried out arbitrarily as needed.

Furthermore, the on/off switches of the above-mentioned speakers and electro-mechanical vibration converters are turned on and off in conjunction with the power switch of the chair and the switch of lighting devices such as dental lights, or are turned on by operating the foot controller. - By turning it off, there is no wasted power consumption due to forgetting to turn it off, etc., and it is sanitary because the practitioner does not have to operate it by hand, and the operation itself is simple.

(Example) Hereinafter, an example of this invention will be described based on the drawings.

Fig. 1 and Fig. 2 show an embodiment applied to a dental chair. A seat elevating mechanism (not shown) consisting of a combination with an electric motor, etc. is installed inside.

Reference numeral 2 denotes a medical table seat section, and this seat section 2 is composed of a seat sheet 2A and a back plate sheet 2B which is pivotally connected to the seat sheet 2A so as to be able to freely change its inclination angle. Reference numeral 3 denotes a head rest section, which is attached to the head side end of the back plate sheet 2B so as to be able to change its inclination angle. These base 1 and treatment table sheet 2
The chair body is constituted by the headrest portion 3 and the headrest portion 3.

Reference numeral 4 denotes a spittoon which is one of the incidental members of the chair body, and this spittoon 4 is fixed to the upper end of a column 5 which is erected on the side of the approximate longitudinal center of the seat 2A in the treatment table seat section 2. Supported.

6 is an electro-mechanical vibration transducer (hereinafter referred to as vibration transducer) that generates mechanical vibration;
As clearly shown in FIG. 2, three sets of vibration transducers 6 are arranged symmetrically along the center line of the width of the treatment table seat part 2, three sets on the seat seat 2A side and three sets on the back plate seat 2B side. 8 for a total of 4 groups, 1 group for each
These eight vibration transducers 6 are arranged as shown in FIG.
Support stand 2a, cushion 2 made of chip urethane, etc.
b, located in the hole 2f formed by opening downward in the support base 2a and the lower layer cushion 2b in the treatment table seat part 2, which is made of a laminated structure of rubber 2c, cushion 2d, and skin leather 2e, and the upper part thereof is It is built in via a mounting plate 6a while being covered with rubber 2c, upper cushion 2d, and leather 2e, and is configured to transmit generated vibrations to the patient when the patient sits on the seat 2.

Reference numeral 7 denotes speakers, and as shown in FIG. 2, two speakers 7 are arranged at symmetrical positions on the headrest portion 3, and these two speakers 7 are clearly shown in FIG. As shown in the figure, it is placed in the recess 3d formed on both left and right sides of the cushion 3b in the head rest part 3 consisting of the support base 3a, cushion 3b, and leather cover 3c, and its upper surface is covered with the cushion 3e and the leather cover 3c. Built-in condition,
It is configured to transmit sound to both ears of the patient.

8 is the controller, this controller 8
is equipped with an operating tool 9 for adjusting the volume of the speaker 7, an operating tool 10 for adjusting the amount of vibration of the vibration transducer 6, and a remote switch 11, and is attached to the side surface of the spittoon support 5.

Reference numeral 12 denotes a control section, which includes a power supply section 13, a common sound source section 14, two filters 15A and 15B, and two amplifiers.
The sound source unit 14 is provided with a power switch 17 for the speaker 7 and the vibration transducer 6 in correspondence with the remote switch 11, and is fixedly installed on the back of the seat 2A on the foot side of the examination table seat 2 as shown in Fig. 1. The sound source unit 14 may be a cassette player, a tuner for cable broadcasting,
AM/FM tuners, CD players, etc. are used selectively.

FIG. 5 is a block diagram showing the connection state of the electrical components of each configuration described above, and in the same figure, the electrical signal from the sound source section 14 is divided into two,
One of the signals is input to the amplifier 16A via the volume controller 9 and the filter 15A, and the amplified signal is output to the speakers 7, 7. Same sound source section 1
The other electric signal from 4 is input to amplifier 16B via vibration amount regulator 10 and filter 15B, and the amplified signal is output to vibration transducers 6, 6, . . . . In this Figure 5,
Reference numeral 18 denotes a muting switch, and this muting switch 18 is used to switch the speaker 7 and the vibration transducer 6 during medical interviews, etc.
It is attached to the side surface of the back plate sheet 2B of the examination table sheet 2 so that it can be easily operated by a practitioner, that is, a dentist, etc.

In the dental chair having the above configuration, the vibration transducer 6 and the speaker By activating 7, pleasant vibrations in the low frequency range are transmitted to the patient's entire body through the bones, and music synchronized with the vibrations is transmitted aurally to the patient, which improves the patient's psychological and physical health. It is possible to relieve the feeling of tension and make the patient feel relaxed, and as a result, the patient does not feel tired or in pain even if the treatment lasts for a long time, and it is also easier for the surgeon to perform the treatment himself.

6 and 7 show another embodiment of this invention, in which the above-mentioned medical table seat section 2 is composed only of a substantially horizontal seat sheet 2A, and in this case also, the The vibration transducers 6 are arranged and built in the same manner as in the above embodiment, and the other configurations are completely the same as in the above embodiment.

In the above embodiment, the control section 12 is installed on the back surface of the seat 2A on the foot side, but it may also be fixedly supported by the spittoon support 5.

In addition to the side of the spittoon support 5, the controller 8 may be attached to the side of the seat portion 2 or, although not shown, a medical table that is integrally connected to the chair body.

Further, the power switch 17 of the speaker 7 and the vibration transducer 6 may be connected to the switch 20 of the dental light or the foot controller 19, as shown by the imaginary line in FIG. dental light or foot controller 19 to perform the treatment.
When the switch 20 of the dental light or foot controller 19 is turned on, the speaker 7 and the vibration transducer 6 automatically start operating, and when the prescribed treatment is completed and the switch 20 of the dental light or foot controller 19 is turned off, the speaker 7 is automatically turned on. The operation is convenient because the vibration transducer 6 is also deactivated.

Further, the configuration may be such that the operation of only the vibration transducer 6 or only the speaker 7 can be selectively switched by operating the controller 8.

(Effects of the invention) As is already clear from the above explanation, this invention enables the dental clinic to synchronize and harmonize the sensory vibrations generated by the electro-mechanical vibration converter attached to the seat with the acoustics generated by the speaker. By transmitting the energy to the entire body of the person being treated, such as a patient, the psychological and physical tension of the person being treated can be sufficiently alleviated through the sensory acoustic effect, making the whole body relaxed. Not only does it allow the patient to receive the desired treatment comfortably without causing fatigue during the treatment over a long period of time, but it also makes it easier for the practitioner to perform the treatment over a long period of time as the patient is relaxed. It can be done mentally and easily.
This is particularly useful for dental treatment, which is accompanied by unpleasant cutting noises due to the use of handpieces.

In addition, by rationally attaching the control unit and various adjustment operating tools to the chair body and its ancillary components, the entire treatment room can be organized in an attractive manner, and various operations such as volume adjustment can be performed by the practitioner. It has practical effects such as being able to be easily and easily carried out as needed.

[Brief explanation of the drawing]

Fig. 1 is a side view of a dental chair according to an embodiment of this invention, Fig. 2 is a plan view, Figs. 3 and 4 are enlarged vertical cross-sectional views of main parts, and Fig. 5 is an electrical connection. A block diagram for explaining the state, and FIGS. 6 and 7 are a side view and a plan view of a dental chair according to another embodiment. Explanation of symbols, 2... Seat part, 2A... Seat seat, 2B... Back plate sheet, 3... Head rest part, 4... Spitton, 5... Spitton support,
6... Vibration transducer (electro-mechanical vibration converter), 7... Speaker, 8... Controller, 12... Control unit.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Vibrations that can be felt in a seat that can be raised and lowered by a seat lifting device installed in the base and a backboard sheet that is connected to the seat so that its inclination angle can be changed freely. an electro-mechanical vibration converter is attached to the headrest, and a speaker that generates sound is attached to a headrest connected to the head side end of the back plate sheet such that the inclination angle can be freely changed; and the electro-mechanical vibration converter A dental chair equipped with an acoustic device that is equipped with an operating tool for adjusting the amount of vibration of the speaker and/or the volume of the speaker, wherein the electro-mechanical vibration converter and the speaker are each equipped with a separate amplifier and a common sound source section. is connected to a control unit including a controller and driven by an electric signal from the common sound source unit, so that the bodily sensation vibration of the electro-mechanical vibration converter changes in synchronization and harmony with the sound of the speaker. Dental treatment chair with sound device. 2. The medical chair according to claim 1, wherein the control section is attached to the back surface of the seat on the foot side or to an accessory member of the chair body. 3. The medical chair according to claim 1, wherein the operating tool is attached to a side surface of the seat or an accessory member of the chair body. 4. The medical chair according to claim 1, further comprising a switch for temporarily reducing or extinguishing the amount of vibration of the electro-mechanical vibration converter and/or the volume of the speaker. 5. Claim 1, wherein the on/off switch of the electro-mechanical vibration converter and/or the speaker is electrically linked to a power switch of a chair or a switch of a lighting device that illuminates a sitting person, or is operable by a foot controller. Medical chair as described.