JP3899494B2 - Dental treatment device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to posture control of a dental treatment chair, and more particularly to a dental treatment chair capable of operating a posture control speed with a slow movement key.
[0002]
[Prior art and problems to be solved by the invention]
Conventionally, posture control of a dental treatment chair in a dental treatment device has been performed by a manually operated keyboard and foot switch, etc., but the movement speed during posture control in a sitting position, backrest, headrest, etc. is usually constant. Some adjustments of the moving speed were performed by the equipment maintenance staff adjusting the semi-fixed adjuster built in the dental treatment chair.
However, the number of elderly patients is increasing recently, and the movement speed of the conventional posture control is high in the age group of a healthy general patient when the patient is elderly, the physically handicapped, the sick, etc. Therefore, there are cases where the patient complains of discomfort such as when the movement is performed because the speed is too fast or the patient feels “vertigo” later.
Therefore, when the patient is an elderly person, a person with a physical disability, a sick person, or the like, it has been a problem to prevent the patient from feeling uncomfortable when receiving treatment.
[0003]
[Means for Solving the Problems]
As a result of intensive studies in view of the above, the present inventor has solved the above problems by the following means.
(1) In a dental treatment apparatus equipped with a dental treatment chair,
Provided with a low-speed movement control mechanism with a low-speed movement key to set the movement speed of the posture control of the standing tilt of the backrest in the dental treatment chair over the entire movement time , which is lower than the normal movement speed corresponding to the healthy person , A low-speed moving key is disposed on the outer surface of the dental treatment chair or in the vicinity thereof.
(2) In a dental treatment apparatus equipped with a dental treatment chair,
Provided with a low-speed movement control mechanism attached with a low-speed movement key that sets the movement speed of the posture control of the raising and lowering of the sitting position in the dental treatment chair over the whole movement time to be lower than the normal movement speed corresponding to a healthy person , The low-speed movement key is arranged on the outer surface of the dental treatment chair or in the vicinity thereof, and the dental treatment apparatus for elderly or sick people according to item (1).
(3) In a dental treatment apparatus equipped with a dental treatment chair,
A low-speed movement control mechanism provided with a low-speed movement key for setting the movement speed of the posture control of the standing inclination of the headrest in the dental treatment chair to be lower than the normal movement speed corresponding to the healthy person over the entire movement time; and The dental treatment apparatus for elderly or disabled persons according to (1) or (2), wherein the low-speed movement key is arranged on the outer surface of the dental treatment chair or in the vicinity thereof.
(4) In a dental treatment apparatus equipped with a dental treatment chair,
The posture control in the dental treatment chair is a low-speed movement control mechanism with a low-speed movement key that sets the movement speed of the posture control of the headrest ascent and descent lower than the normal movement speed corresponding to a healthy person over the entire movement time. And a low-speed moving key is disposed on the outer surface of the dental treatment chair or in the vicinity thereof, and is adapted for the elderly or the sick according to any one of (1) to (3) Dental treatment equipment.
[0004]
DETAILED DESCRIPTION OF THE INVENTION
Examples of embodiments of the invention will be described below with reference to the drawings.
FIG. 1 is an external view of a dental treatment apparatus having posture control speed operation keys.
In the figure, 1 is a manual operation keyboard on the practitioner side, 3 is a manual operation keyboard on the side of the assistant, 5 is a manual operation keyboard on the side of the headrest, 50 is an upright tilt speed operation key (low speed movement key), and 56 is a headrest. Up and down speed operation keys (low speed movement keys), 60 is a sitting position, 70 is a backrest, 75 is a gargle, 76 is a bracket table, 77 is a chair for practitioners and assistants, 80 is a headrest, 101 is a sitting position An up / down movement speed operation key (low speed movement key) 102 is a backrest standing inclination movement speed operation key (low speed movement key).
FIG. 2 shows an example in which a manual operation keyboard for posture control on the side of a practitioner in a conventional dental treatment chair is provided with a movement speed operation key (low-speed movement key) for raising and lowering the sitting position and for raising the backrest. FIG.
In FIG. 2A, 1 is a manual operation keyboard, 11 is a timer display, 12 is a timer setting unit, 13 and 14 are autosets 1 and 2, 15 is a gargle position, 16 is a reset position, and 17 is a reset position. Soft memory, 18 lights ON / OFF, 19 memory, 20 instrument operation display, 21 micromotor forward / reverse rotation switching, 22 handpiece water injection switching, 23 handpiece light ON / OFF, 24, 25 , 26 are operation keys for three-stage switching of handpiece rotation control and operating light dimming, and the above are existing ones.
Reference numeral 102 denotes a backrest standing / tilting movement speed operation key (low speed movement key), which is newly added.
FIG. 2 (b) is a diagram in which an up / down movement speed operation key (low speed movement key) 101 for the sitting position is added to FIG.
[0005]
FIG. 3 shows that a manual operation keyboard for posture control on the assistant side in a conventional dental treatment chair is provided with movement speed operation keys (low speed movement keys) for raising and lowering the sitting position and for raising and lowering the backrest. It is an external view which shows an example.
In FIG. 3A, 3 is a manual operation keyboard, 27 to 32 are operation keys similar to 13 to 18 in FIG. 2, and the above are existing ones.
202 is newly added by the upright tilting movement speed operation key (low speed movement key) similar to 102 in FIG.
(B) of FIG. 3 is obtained by adding an up / down movement speed operation key (low speed movement key) 201 of the sitting portion to the above (a) figure.
[0006]
FIG. 4 is an external view showing an example in which a key for slowing down the moving speed of the headrest and raising and lowering the headrest (low-speed moving key) is added to the manual operation keyboard for controlling the posture of the headrest in the conventional dental treatment chair. is there.
In the figure, 5 is a headrest manual operation keyboard, 33 is an existing manual operation switch for raising, 34 for lowering, 35 for tilting, and 36 for raising.
Reference numeral 50 denotes a moving speed operation key (low speed movement key) for raising the headrest, and 56 is a headrest rising / lowering movement speed operation key (low speed movement key), which are newly added. Reference numeral 80 denotes a headrest.
In addition, the example which added only the moving speed operation key (low-speed movement key) 50 of the standing inclination of a headrest is abbreviate | omitted.
[0007]
Next, an example of switching of the moving speed in the posture control by turning ON / OFF the operation key (low-speed moving key) will be described based on a block diagram.
FIG. 5 shows an existing hydraulic circuit diagram for driving the ascending / descending cylinder of the seat and the upright tilting cylinder of the backrest in the posture control of the dental treatment chair, and the moving speed control circuit of the cylinder of the present invention.
In this example, the above-described movement speed control is performed by providing a flow rate control valve connected to the cylinder, controlling the degree of opening / closing by a servo motor, and varying the movement speed of the cylinder.
However, the speed change is deceleration and return, and the deceleration value does not need to be continuously variable. For example, if the moving speed for the elderly is determined, then the operation key ON / OFF operation is repeated for the purpose. Reach.
The low speed movement control mechanism will be described below.
In the figure, 6 is a hydraulic circuit, 7 is a control block for cylinder operating speed, 41, 47, 61, 63, 81, 83 are electromagnetic direction control valves, 42 is a relief valve, 43, 62, 82 are check valves, 44, 45, 64, 84 are flow control valves (variable throttle valves), 48 is a throttle valve, 49, 65, 85, 88 are filters, 57, 66, 86 are flow control valves (variable throttle valves) connected to the cylinder. ), 51 is a cylinder for raising and lowering the sitting position, 73 is a hydraulic inlet, 87 is a back-up tilting cylinder, and 89 is a hydraulic outlet.
In addition, 52, 67, 91 are rotary connecting devices, 53, 68, 91 are servo motors, 54, 69, 93 are drive units, 55, 71, 94 are control units, 58, 72, 95 are semi-fixed adjusters, 74 and 75 are servo motor control units, 101 is an up / down movement speed operation key (low speed movement key) of the sitting position, and 102 is an upright / tilt movement speed operation key (low speed movement key).
[0008]
As an example of the action in FIG. 5, the hydraulic oil flowing from the inlet 73 passes through the filter 88, passes through the open circuit of the electromagnetic directional control valve 81, and flows from the check valve 82 through the filter 85 (variable restrictor). Valve) 86 enters the right end of the back tilting cylinder 87 and pushes the cylinder to actuate the backrest.
At this time, the hydraulic oil on the left side of the cylinder on the opposite side passes through the variable throttle valve 66, passes through the filter 65, passes through the opening of the electromagnetic direction control valve 63 and the variable throttle valve 64, and flows out from the outlet 89.
When actuating the tilt of the backrest, the hydraulic oil that has flowed in from the electromagnetic directional controller 62 enters the left end of the cylinder 87 through the variable throttle valve 66 and operates the cylinder.
At this time, the hydraulic oil on the right side of the cylinder on the opposite side passes through the variable throttle valve 86, passes through the filter 85, opens the electromagnetic directional control valve 83 and the variable throttle valve 84, and flows out from the outlet 89.
The ascending / descending of the ascending / descending cylinder 51 in the sitting position is performed by the same operation. However, since the hydraulic oil is allowed to flow out due to the weight of the patient in the sitting position when descending, a one-way conduit is adopted.
The above operations are existing and are performed by a control circuit for controlling the posture of the dental treatment chair and normal operation keys.
[0009]
Although the movement speed of the attitude control in the above operation method is constant, in the present invention, the movement speed needs to be decelerated and restored to the original, so that the variable throttle valve 57 for flow rate control is raised. The lowering cylinder 51 is also provided with variable throttle valves 66 and 86 at the left and right ends of the rising and tilting cylinder 87, respectively, and the servo motors 53, 68, and 92 connected to the degree of opening and closing of the variable throttle valve are connected. It is variable by forward or reverse rotation to control the operating speed of the cylinder.
Reference numeral 7 denotes a control block for the cylinder operating speed by the servo motor.
For example, a push position holding type switch of push ON and push OFF is used for the ascending / descending movement speed operation key (low speed movement key) 101 of the sitting position, and a stepping motor is used for the servo motor 53, so that the control unit 55 is set to a predetermined frequency. The circuit is configured to generate a pulse for a certain period of time, a polarity reversal circuit for the polarity, and a circuit for confirmation, correction, etc. by feedback of the number of rotations from the rotary coupling device.
[0010]
When the operation key 101 is turned on, a positive pulse is generated for a certain period of time and sent to the stepping motor 53 via the drive unit 54 for normal rotation.
This rotation is connected to an adjustment screw portion for moving the needle valve of the variable throttle valve 57 up and down by the rotary connecting device 52, and the flow rate of the hydraulic cylinder (the ascending / descending cylinder 51) is adjusted by restricting the flow path in the closing direction. Then, the moving speed can be reduced.
Moreover, in order to return to the original moving speed, the throttle of the variable throttle valve 57 may be returned to the original state. Therefore, by turning the operation key 101 OFF, a negative pulse whose polarity is inverted for a certain period of time. Is sent to the stepping motor 53 via the driving unit driving unit 54 and rotated in the reverse direction.
This rotation is connected to an adjusting screw portion for raising and lowering, for example, a needle valve of the variable throttle valve 57 by a rotary connecting device 52, and the flow rate of the hydraulic cylinder (climbing and lowering cylinder 51) is changed by changing the flow path in the opening direction. It is possible to return the adjustment to the original state by returning the adjustment.
Reference numeral 58 denotes a semi-fixed adjuster for finely adjusting the moving speed.
As described above, by turning ON / OFF the ascending / descending moving speed operation key 101 of the sitting position, the moving speed can be easily decelerated and restored.
Further, by the same operation as described above, the moving speed of the backrest standing and tilting cylinder 87 controls the control units 71 and 94 of the servo motors 68 and 92 to vary the opening / closing degree of the variable throttle valves 66 and 86. The moving speed can be easily reduced or returned to the original by turning the back upright tilting movement speed operation key 1O2 ON or OFF.
[0011]
FIG. 6 is an explanatory view showing the operation of the headrest standing tilt and the rising / lowering operation and the change of the posture control speed in the dental treatment chair 90.
In the figure, 110 is a DC power source, 111 and 112 are semi-fixed resistance regulators, 113 is a DC power output terminal, 114 is a DC motor, 115 is a drive gear, 116 is a bar with a headrest standing tilting gear, and 118 is a headrest rising and lowering An outer cylinder with a gear for use, 119 is a bending instrument for standing inclination, 120 is a DC motor, 121 is a drive gear, 122 is a moving direction of ascending / descending, and 123 is a moving direction of a standing inclination.
As shown in the figure, in order to raise the posture of the headrest 80 first, the DC motor 120 is kept stopped, the DC motor 114 is started, and is rotated forward (rightward). The bar 116 is advanced. (Stop of DC motor 120, start circuit of DC motor 114 is not shown)
The front end of the headrest standing tilting geared bar 116 is rotatably joined to the rear end of the standing tilting bending instrument 119, and the headrest rising / lowering geared outer cylinder 118 is supported at the tip end hole. As mentioned above, it moves upward along the curve of the bending instrument 119.
Since the headrest 80 is fixed to the distal side surface of the bending instrument 119 at a certain angle, the headrest stands in this state.
Next, when the DC motor 114 is rotated in the reverse direction (left rotation), the headrest 80 returns to the original position by the reverse operation.
[0012]
In order to raise the posture of the headrest 80, the DC motor 120 and the DC motor 114 are rotated forward (rightward), and the outer cylinder 118 with the headrest raising / lowering gear and the bar 116 with the standing inclination gear are joined together by the drive gears 121 and 115. Move forward. (Simultaneous activation circuit of DC motor 120 and DC motor 114 is not shown) The tip of the bar 116 is jointed to the rear end of the bending instrument 119 for standing and tilting, so that the outer cylinder 118 with the raising and lowering gear is raised. The headrest which moves together with the bar 116 with the gear for inclination and is fixed to the front end side surface at a constant angle also advances.
Usually, since the set angle of the headrest of the dental treatment chair is inclined above the horizontal position with respect to the floor surface, the above-mentioned advancement is an increase in position.
Next, when the DC motor 120 and the DC motor 114 are rotated in the reverse direction (counterclockwise), the headrest 80 returns to the original position by the reverse operation.
[0013]
The attitude control in the operation method described above is existing and the moving speed is constant, but in the present invention, the moving speed needs to be reduced as needed and returned to the original.
The low speed movement control mechanism will be described below.
As shown in the figure, for example, a headrest standing tilt speed operation key (low-speed movement key) 50 adopts an operation switch that holds push ON and push OFF, and is semi-fixed in series with the DC motors 114 and 120. In order to decelerate the rotation speed by providing the adjustment resistor 111, the rising inclination speed operation key (low speed movement key) 50 is pushed and turned on, and the voltage dropped by the resistor 111 is supplied to the DC motor to decelerate the rotation speed. Therefore, the rising inclination speed of the headrest can be reduced.
Next, if the standing inclination speed operation key (low speed movement key) 50 is pushed off to disconnect the semi-fixed adjustment resistor 111 to directly connect the line, and the power supply voltage to the DC motor is restored, the rotation speed is normal. Return to. Therefore, the rising inclination speed of the headrest returns to the original state.
[0014]
Next, as shown in the figure, similarly to the above, for example, an operation switch of a method of holding the push-up / down-speed operation key (low-speed movement key) 56 to hold the push ON and push OFF is adopted, and the DC motor 114 In addition, a semi-fixed adjustment resistor 112 is provided in series with 120 and 120. In order to decelerate the rotation speed, the ascending / descending speed operation key 56 is pushed, turned on, and the voltage dropped by the resistor 112 is supplied to the DC motor. The speed can be reduced, and therefore the headrest ascent and descent speed can be reduced.
Next, the ascending / descending speed operation key 56 (low speed movement key) is pushed off to disconnect the semi-fixed adjustment resistor 112 to directly connect the line, and the power supply voltage to the DC motor is restored. Return to. Therefore, the ascending / descending speed of the headrest is restored.
As described above, by turning ON / OFF the headrest ascent / descent speed operation key (low speed movement key) 56, the movement speed can be easily decelerated and restored.
[0015]
FIG. 7 shows the control block 7 of the cylinder operating speed by the servo motor, the hydraulic circuit 6, the cylinder 51 for raising and lowering the sitting position, and the cylinder 87 for raising and lowering the backrest 70 in the dental treatment chair 90 described above. It is an external appearance perspective view which shows the example of arrangement | positioning and the arrangement | positioning relationship between the raising / lowering of the headrest 80, the bending instrument 119 for standing inclination, and the headrest manual operation keyboard 5. FIG.
In the figure, 122 indicates the direction of rising and lowering of the headrest, 123 indicates the direction of standing inclination of the headrest 80, 136 indicates the direction of rising inclination of the backrest 70, and 137 indicates the direction of rising and lowering of the sitting portion 60.
[0016]
【The invention's effect】
As described above, according to the present invention, the following effects can be exhibited.
In the posture control of the treatment chair of the dental treatment apparatus, a low-speed movement key for decelerating the control speed of the standing inclination of the backrest, the raising / lowering of the sitting position, the rising inclination of the headrest and the raising / lowering of the headrest to a low speed, Since it is provided on the outer surface or in the vicinity thereof, the practitioner or assistant can easily operate,
It is possible to slow down the movement speed of posture control to a low speed for elderly patients who are increasing recently, those with physical disabilities, sick persons, etc. Discomfort symptoms, such as when the patient feels dizzy when performed or later, can be eliminated.
Moreover, in the case of a general patient, it can be efficiently applied to patients of a wide age group by returning to the conventional moving speed.
Therefore, in the dental treatment, the effect that can be applied particularly to the elderly in the patient, the disabled with physical disabilities, and the like is great.
[Brief description of the drawings]
FIG. 1 is an external view of a dental treatment apparatus provided with posture control speed operation keys (low-speed movement keys).
FIG. 2 is a case where a manual operation keyboard for posture control on the side of a practitioner in a conventional dental treatment chair is provided with a movement speed operation key (low speed movement key) for raising and lowering the sitting position and for raising the backrest. FIG.
FIG. 3 is a manual operation keyboard for posture control on the assistant side in a conventional dental treatment chair, provided with a movement speed operation key (low speed movement key) for raising and lowering the sitting position, raising and lowering the backrest, and tilting. The external view which shows an example.
FIG. 4 is an external view showing a case where a manual operation keyboard for posture control of a headrest in a conventional dental treatment chair is provided with a moving speed operation key (low speed moving key) for raising and lowering the headrest and raising the headrest.
FIG. 5 is a diagram of an existing hydraulic circuit that drives a cylinder for raising and lowering a seat portion and a cylinder for standing and tilting a backrest in posture control of a dental treatment chair, and a control circuit diagram of a moving speed of the cylinder of the present invention.
FIG. 6 is an explanatory diagram showing the operation of the headrest standing tilt and ascending / descending operation and the change in posture control speed according to the present invention in the dental treatment chair.
FIG. 7 shows a control block of cylinder operating speed by a servo motor, a hydraulic circuit, a seat raising / lowering cylinder, a backrest standing tilt cylinder, and a headrest raising / lowering of a dental treatment chair. FIG. 4 is an external perspective view showing an example of the arrangement relationship between the bending instrument for standing upright and the headrest manual operation keyboard.
[Explanation of symbols]
1, 2: Manual operation keyboard 3 on the operator side, 4: Manual operation keyboard on the assistant side 5: Manual operation keyboard on the side of the headrest 6: Hydraulic circuit 7: Control block for cylinder operating speed 11: Timer indicator 12: Timer setting part 13, 14: Auto set 1 and 2
15: Gargle position 16: Reset position 17: Software memory 18: Light ON / OFF
19: Memory 20: Instrument display 21: Micromotor forward / reverse rotation switching 22: Handpiece water injection switching 23: Handpiece light ON / OFF
24, 25, 26: Operation keys 27, 28: Autoset 1 and 2 29: Gargle position 30: Reset position 31: Software memory 32: Light ON / OFF 33: Ascending manual operation switch 34: Lowering manual operation switch 35: Inclination manual operation switch 36: Standing manual operation switch 41: Electromagnetic direction control valve 42: Relief valve 43: Check valve 44, 45: Flow control valve 46: Accumulator 47: Electromagnetic directional control valve 48: Throttle valve 49: Filter 50: Headrest standing tilt speed operation key (low speed movement key) 51: Sitting part ascending / descending cylinder 52: Rotating coupling instrument 53: Servo motor 54: Drive part 55 : Control unit 56: Headrest up / down speed operation key (low speed movement key)
57: Flow control valve 58 connected to the cylinder 58: Semi-fixed regulator 61: Electromagnetic direction control valve 62: Check valve 63: Electromagnetic direction control valve 64: Check valve 65: Filter 66: Electromagnetic direction control valve 67: Rotation Connecting device 68: Servo motor 69: Drive unit 70: Backrest 71: Control unit 72: Semi-fixed adjuster 73: Entrance 74, 75: Servo motor control unit 91: Rotary connecting device 92: Servo motor 93: Drive unit 94: Control unit 95: Semi-fixed adjuster 101: Up / down movement speed operation key (low speed movement key) of the sitting position
102: Back tilting up and down movement speed operation key (low speed movement key)
110: DC power supply 111, 112: Semi-fixed resistance regulator 113: DC power supply output terminal 114: DC motor 115: Drive gear 116: Bar with headrest standing tilting gear 118: Outer cylinder with headrest rising / lowering gear 119: Standing tilting 120: DC motor 121: Drive gear 122: Headrest up / down movement direction 123: Headrest upright inclination movement direction 136: Backrest upright inclination direction 137: Sitting section 60 up / down direction

Claims (4)

In a dental treatment apparatus equipped with a dental treatment chair,
Provided with a low-speed movement control mechanism with a low-speed movement key to set the movement speed of the posture control of the standing tilt of the backrest in the dental treatment chair over the entire movement time , which is lower than the normal movement speed corresponding to the healthy person , A low-speed moving key is disposed on the outer surface of the dental treatment chair or in the vicinity thereof. In a dental treatment apparatus equipped with a dental treatment chair,
Provided with a low-speed movement control mechanism attached with a low-speed movement key that sets the movement speed of the posture control of the raising and lowering of the sitting position in the dental treatment chair over the whole movement time to be lower than the normal movement speed corresponding to a healthy person , 2. The dental treatment apparatus for elderly or sick persons according to claim 1, wherein a low-speed movement key is arranged on the outer surface of the dental treatment chair or in the vicinity thereof. In a dental treatment apparatus equipped with a dental treatment chair,
A low-speed movement control mechanism provided with a low-speed movement key for setting the movement speed of the posture control of the standing inclination of the headrest in the dental treatment chair to be lower than the normal movement speed corresponding to the healthy person over the entire movement time; and 3. The dental treatment apparatus for elderly or sick people according to claim 1 or 2, wherein the low-speed movement key is arranged on the outer surface of the dental treatment chair or in the vicinity thereof. In a dental treatment apparatus equipped with a dental treatment chair,
The posture control in the dental treatment chair is a low-speed movement control mechanism with a low-speed movement key that sets the movement speed of the posture control of the headrest ascent and descent lower than the normal movement speed corresponding to a healthy person over the entire movement time. And a low-speed moving key is disposed on the outer surface of the dental treatment chair or in the vicinity thereof, and is suitable for the elderly or the disabled for dental use according to any one of claims 1 to 3. Therapeutic device.

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