JP2005270211A - Dental treatment chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an additional support bag with air bags capable of freely adjusting the position of a backrest according to the body shape of a patient because a conventional dental treatment chair has been adjusted to conform to a patient, especially the senior, by moving a backrest divided into two up and down up to now, but the chairs are based on a special specification and have no generality, and the adjustment is manually carried out and burdensome. <P>SOLUTION: The chair has a band set on the front face of the backrest of the chair and attaching to the back face board and a bag-shaped support bag having stretchability in a front direction, a plurality of inflatable and deflatable air bags arranged in a plurality of partitions in the support bag, an air distributer having an opening and closing solenoid valves for individually controlling tubes connected to the air bags, and a remote operation box of the same. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dental treatment chair, and more particularly, to a support bag provided with an airbag that is detachably attached to a backrest and that can freely adjust a position where the backrest fits according to a patient's body shape.

2. Description of the Related Art Conventionally, a dental treatment chair that can be adjusted to fit a patient by moving a backrest that has been divided into two parts up and down, particularly for elderly people, has been disclosed.
98 'Morita equipment general catalog (DENTAL EQIPMENT page 9) CHAIR-UNIT SIGNO GR S21 (September 1998, published by Morita Corporation)

  However, the dental treatment chair has a special specification and its use is limited and has no generality, and adjustment is manual and troublesome. Also, it was not possible to set the right / left inclination of each part of the backrest.

In view of the above, the present inventors have solved the problem by the following means as a result of intensive experimental research.
(1) The back of the dental treatment chair is provided with a band that is set on the front surface and fastened to the back plate, and a bag-like support back that is stretchable in the front direction. A plurality of inflatable / shrinkable airbags are disposed in the left and right and upper, middle, and lower compartments, and the plurality of airbags are air tubes fixed at one corner and an air connected to an extension of the tubes. An opening / closing solenoid valve and check valve for adjustment of introduction and an opening / closing solenoid valve for exhaust are provided, and air is supplied to the trunk of the air tube and each air bag below the support back. A branch air tube, an open / close solenoid valve, a check valve, an exhaust open / close solenoid valve, and an air distributor that accommodates a control signal line are provided, and an external dental treatment chair is provided with the plurality of airbags. Connected open / close solenoid valve A control box for storing a plurality of control switches to be controlled and an operation switch for a solenoid valve for trunk opening / closing is provided, and one side of the solenoid valve for air introduction adjustment in the distributor is parallel to the trunk of the air tube The air tube main line is connected to the air supply part of the dental treatment chair via a solenoid valve for opening and closing the main line, and further inside the distributor. The dental treatment chair is characterized in that the control signal line is a multi-core cable led out from one end of the air distributor and connected to the operation box.
(2) In a dental treatment chair with a support back attached to the backrest, each of the corresponding airbags in the support back is inflated or contracted by individually operating a plurality of operation switches of the operation box. The dental treatment chair as described in (1) above, wherein each portion of the backrest that abuts can be adjusted.
(3) In the dental treatment chair in which the support airbag is attached to the backrest, the power source for adjusting the airbag in the support bag is the air that is permanently installed in the dental treatment chair. The dental treatment chair described in 1).

According to the first and second aspects of the present invention,
1. The back of the dental treatment chair is equipped with a band that is set on the front and fastened to the back plate, and a bag-like support back that stretches forward.
Inside the support bag, a plurality of inflatable / reducible airbags are disposed in the left and right and upper, middle, and lower compartments,
The plurality of airbags include an air tube fixed at one corner, an open / close solenoid valve for adjusting air introduction and a check valve connected to an extension of the air tube, and an open / close solenoid valve for exhaust,
In addition, the lower portion of the support bag accommodates a trunk line of the air tube, a branch air tube for supplying air to each airbag, an open / close solenoid valve, a check valve, an open / close solenoid valve for exhaust, and a control signal line. A plurality of operation switches for controlling the open / close solenoid valves connected to the plurality of airbags and an operation switch for the main line open / close solenoid valves in an external dental treatment chair. With a box,
And one side of the open / close solenoid valve for air introduction adjustment in the distributor is connected in parallel to the main line of the air tube and led out from one end of the air distributor, and the main line of the air tube is used for opening and closing the main line The control signal line in the distributor is led out from one end of the air distributor by a multi-core cable and connected to the operation box. To be

Prior to treatment, the practitioner sets the bag-like support back on the back of the dental treatment chair, so that it fits the body shape of a special body patient, for example, an elderly person whose spine is bent forward or left and right is out of balance. Thus, the airbags at a plurality of locations in contact with the back can be made to fit by being uneven (expanded / reduced) by remote control operation.
Further, for example, for a short infant or the like, the upper left and right airbags can be inflated and the others can be reduced and used as a headrest.
Furthermore, adjustment of each airbag by the operation switch is easy.
And when not in use, the entire airbag can be reduced or the entire support bag can be removed.
2. According to the invention of claim 3, since the power source for adjusting the air bag in the support bag is the air that is permanently installed in the dental treatment chair, it can be branched and easily connected to the support bag. .

The best mode for carrying out the invention will be described below with reference to the drawings.
FIG. 1 is an external perspective view of a dental treatment chair when a support bag is mounted.
In the figure, 1 is a dental chair unit when a support bag is mounted, 2 is a support bag, 3 is an air bag, 4 is an air distributor, 5 is a main air tube, 6 is an operation box, 7 is an air tube, and 8 is a backrest. , 8 'is a back plate, 9 is a headrest, 10 is a seat, 11 is a footrest, 12 is a spiton, 13 is a light pole, 14 is an assistant table, 15 is a bracket table, 17 is a fastening band, 19 is a cover, Reference numeral 22 denotes a control signal line.

2 is an external view when the support back is set on the backrest.
(A) is a front view, (B) is a right side view, (C) is a bottom view, and (D) is a rear view.
In the figure, 4 'is a distributor connector, 16 is a back plate of a support back, 18 is a detachable tool, and 23 is a control line connector.
As shown in the figure, the support back 2 is set on the front surface of the backrest 8 of the dental treatment chair 1, and the fastening band 17 is rotated behind the back plate of the backrest 8 and fastened by the attachment / detachment tool 18.
An air distributor 4 that houses a plurality of air tubes 7 extending from the plurality of airbags 3 and an opening / closing solenoid valve for adjustment is disposed below the fastened support bag 2. (FIGS. 6, 7 and 8) From here, the air supply part (not shown) of the dental treatment chair via the trunk air tube 5 and the side of the Spitton 12 via the control signal line 22 are hooked. Connected to the operation box 6 (FIG. 1).

The structure and operation of each instrument will be described below.
Fig. 3 is an external view of the support bag alone.
(A) is a plan view, (b) is a left side view, (c) is a front view, (d) is a right side view, and (e) is a bottom view (f).
As shown in the external view of the support bag shown in FIG.
The appearance is a back plate 16 of a support back that is curved inward in accordance with the back 8 of the chair unit knit, a fastening band 17 and an attaching / detaching tool 18 at the tip thereof, an air distributor 4, and a main line. A distributor connector 4 ′ for attaching and detaching the air tube 7, a control line connector 23, and a cover 19 having elasticity that covers the air bag 3 provided later will be provided.
The back plate 16 of the support back may be made of synthetic resin, the cover 19 may be made of soft and stretchable synthetic leather, the fastening band 17 may be made of leather, and the attachment / detachment tool 18 may be made of velcro tape or the like.

FIG. 4 is a perspective view of the support bag during expansion.
(A) (C) Plane sectional view of the lower part of the upper airbag center (B) Figure (C) Left side sectional view of the airbag center on the left side (C) Plan view when the cover is seen through (D) (C) A right side sectional view (E) of the right airbag center in the figure is (C) a lower sectional view of the lower airbag center in the figure.
In the figure, 3a is an air bag during expansion, 7 'is an air inlet / outlet port, 20 is an upper adhesive portion, and 21 is a bottom adhesive portion.
As shown in the figure, a total of six airbags 3 are disposed in the upper, middle, lower, and right and left compartments, and an air tube 7 is fixedly installed like an air inlet / outlet port 7 '.
The extended end of the air tube 7 is connected to an open / close solenoid valve and check valve for adjusting air introduction, which will be described later, and an open / close solenoid valve for exhaust, and is housed in the air distributor 4.
The airbag 3 is, for example, a stretchable rubber bag, the upper part of which is adhered to the cover 19 (the upper adhesive part 20), and the bottom part is adhered to the back plate 16 of the support back 2 (the lower adhesive part 21). ing.
Further, the air is introduced from the main air tube 5 through the distributor connector 4 'to the opening and closing solenoid valve (described later) through the air tube 7 to each air bag 3, so that the air bag 3 is inflated like the air bag 3a. 19 protrudes forward (forward).
At this time, since the airbag 3a is bonded to the cover 19 by the upper bonding portion 20 and to the back plate 16 of the support bag by the bottom bonding portion 20, no deviation occurs.

Fig. 5 is a perspective view of the support bag during reduction.
(A) (C) Plane sectional view of the lower part of the upper airbag center (B) Figure (C) Left side sectional view of the airbag center on the left side (C) Plan view when the cover is seen through (D) (C) A right side sectional view (E) of the right airbag center in the figure is (C) a lower sectional view of the lower airbag center in the figure.
In the figure, 3b shows the airbag at the time of reduction.
As shown in the drawing, the inflated airbag 3a is reduced like an airbag 3b which is reduced when exhausted by an exhaust opening / closing solenoid valve (described later), and the cover 19 is recessed backward.
At this time, since the airbag 3a is bonded to the cover 19 by the upper bonding portion 20 and to the back plate 16 of the support bag by the bottom bonding portion 20 as described above, the cover 19 follows the recess of the airbag 3. .

As shown in FIGS. 4 and 5, each airbag 3 can be inflated or contracted by operation, so that necessary unevenness can be generated by the combination thereof.
For example, if the upper left and right two are inflated and the others are reduced, they can be used as the backrest of the infant, or can be fitted by adjusting each part according to the back of a special patient. .

FIG. 6 is an external perspective view of the air distributor.
This device is disposed below the back surface of the support back 2.
FIG. 7 is an external perspective view of the operation box.
In the figure, 24 is a box-side control line connector, 25 is a suspension hand, 26, 27, 28, 29, 30, and 31 are 2-pole ON / OFF switches corresponding to airbags, and 32 and 33 are ON / OFF for trunk lines. Indicates a switch.
This device is used by being suspended from the side surface of the spitone 12.

FIG. 8 is a block diagram of a dental treatment chair with the support bag attached thereto.
In the figure, 34, 37, 40, 43, 46, 49 are open / close solenoid valves for air introduction adjustment, 36, 39, 42, 45, 48, 51 are exhaust open / close solenoid valves, 35, 38, 41, 44, 47 and 50 are check valves, 52 is an open / close solenoid valve for an air main line, 53 is an overpressure air discharger, and 54 is a power line.

The six airbags 3 disposed in the support bag 2 are inflated or reduced by air being taken in and out from the air inlet / outlet 7 ′ via the air tube 7.
The air operation control is performed as follows.
First, the air main line open / close solenoid valve 52 is opened by the main air tube 5 by the air main line ON / OFF switch 32 which is an operation switch of the operation box 6 to introduce air.
Next, the bipolar switch ON / OFF switch of the operation switch corresponding to the required airbag 3 is operated.

For example, in the case of an air bag on the upper left, when one pole of the two-pole type ON / OFF switch 26 is turned on and the open / close solenoid valve 40 for air introduction adjustment is opened, air is introduced via the check valve 41. The airbag is inflated.
When the limit is exceeded, the overpressure air discharger 53 composed of, for example, a spring and a valve disposed in each airbag 3 operates as a limiter.
Therefore, the adjustment of air introduction is proportional to the operation time of the bipolar type ON / OFF switch 26.
Further, when it is desired to release air, similarly, the other one pole of the two-pole ON / OFF switch is turned ON, and the exhaust opening / closing solenoid valve 42 is opened and exhausted to the outside.
The middle point of the two-pole type ON / OFF switch is OFF, and automatically returns when the finger is released from the button.

Although the above has described the operation of the system of one airbag 3, other airbags 3 can be expanded or contracted arbitrarily in the same manner.
When the supply of air from the main line air tube 5 is stopped, the main line ON / OFF switch 33 is pressed to turn it OFF to close the open / close solenoid valve 52.
It should be noted that the operation is simple if the main line ON / OFF switches 32 and 33 are connected in series, with 32 for ON and 33 for OFF.

  Also, the power source air that adjusts the air bag in the support bag of this device is branched because the air used for handpieces such as air turbines and three-way syringes is permanently installed in dental treatment chairs. And can be easily connected to the airbag.

External perspective view of dental treatment chair with support bag External view when the support bag is set on the backrest External view of support bag Perspective and cross-sectional view of the support bag during inflation Perspective and cross-sectional view of the support bag during reduction External perspective view of air distributor External perspective view of the operation box Block diagram of dental treatment chair with this support bag

Explanation of symbols

1: Dental chair unit 2 when the support bag is mounted 2: Support bag 3: Air bag 3a: Air bag when inflated 4: Air distributor 4 ': Distributor connector 5: Trunk air tube 6: Control box 7: Air tube 7 ': Air doorway 8: Backrest 8': Back plate 9: Headrest 10: Seat 11: Footrest 12: Spitton 13: Light pole 14: Assistant table 15: Bracket table 16: Back plate of support back 17: Fastening Band 18: Detachable tool 19: Cover 20: Upper adhesive part 21: Bottom adhesive part 22: Control signal line 23: Control line connector 24: Box side control line connector 25: Suspensioner 26-31: Bipolar ON / OFF Switches 32 and 33: Main line ON and OFF switches 34, 37, 40, 43, 46, 49: For air introduction adjustment Closed solenoid valve 36, 39, 42, 45, 48, 51: Open / close solenoid valve 35, 38, 41, 44, 47, 50 for exhaust: Check valve 52: Open / close solenoid valve for air main line 53: Overpressure air Ejector 54: Power line

Claims (3)

The back of the dental treatment chair is equipped with a band set on the front and fastened to the back plate, and a bag-like support back with elasticity in the front direction.
Inside the support bag, a plurality of inflatable / reducible airbags are disposed in the left and right and upper, middle, and lower compartments,
The plurality of airbags include an air tube fixed at one corner, an open / close solenoid valve for adjusting air introduction and a check valve connected to an extension of the tube, and an open / close solenoid valve for exhaust. And
Further, at the lower part of the support back, a branch air tube for supplying air to the main line of the air tube and each airbag, an open / close solenoid valve, a check valve, an open / close solenoid valve for exhaust, and a control signal line With an air distributor to store
The external dental chair includes an operation box for storing a plurality of operation switches for controlling the open / close electromagnetic valves connected to the plurality of airbags and an operation switch for the main line open / close electromagnetic valve,
One side of the open / close solenoid valve for air introduction adjustment in the distributor is connected in parallel to the main line of the air tube and led out from one end of the air distributor,
The trunk of the air tube is connected to the air supply part of the dental treatment chair via a solenoid valve for opening and closing the trunk,
Further, the control signal line in the distributor is led out from one end of an air distributor by a multi-core cable and connected to the operation box. In a dental treatment chair with a support back attached to the backrest,
By individually operating a plurality of operation switches of the operation box, each corresponding airbag in the support bag can be inflated or contracted to adjust each portion of the backrest that contacts the patient. Item 2. The dental treatment chair according to Item 1. In a dental treatment chair with a support airbag on the back,
The dental treatment chair according to claim 1, wherein the power source for adjusting the airbag in the support bag is air permanently installed in the dental treatment chair.

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