JPH0366892B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a controller suitable for use in dental treatment.

Prior Art In dental treatment, a method has been proposed in which a foot lever is operated, an instrument is driven with power according to the rotation angle of the foot lever, and a spray switch is used to turn on and off the spray. However, in this case, if you wanted to use the instrument with the same power many times, you had to operate the lever each time, which was very troublesome.

Purpose The present invention was made in view of the above-mentioned circumstances, and in particular, a specification changeover switch is added to the above-mentioned conventional controller, and the specification changeover switch allows the lever to be moved without driving the instrument. The level meter display corresponding to the angle and the power control can be set (the lever is in the locked state at this time), and by turning on the spray switch in this state, the power set in advance as described above will be applied. The purpose is to enable the instrument to be driven, thereby improving the operability of the dental treatment controller.

Configuration Figure 1 is an overall configuration diagram for explaining an example of the output adjustment device (Utility Application No. 107517/1982) proposed by the present applicant earlier, and Figure 2 is an electrical circuit diagram. This relates to a variable output tracking device for dental treatment instruments that allows the output of a plurality of dental treatment instruments used in dental treatment etc. to be adjusted by remote control, and in particular, includes a motor and a motor connected to the motor. a displacement electric transducer (potentiometer, encoder, etc.) for controlling the motor, and a volume for output adjustment operated by the surgeon, and the displacement electric transducer is configured to control the motor so as to correspond to the volume. is driven, and the motor is connected to a necessary output adjustment means of the dental treatment instrument (for example, a flow rate adjustment valve in the case of an air turbine, a volume for adjusting output equal voltage in the case of a microengine), and has The output of all the dental treatment instruments used can be electrically and remotely adjusted by adjusting a single output adjustment volume. That is, in FIGS. 1 and 2, 1 is a control printed circuit board, 2 is a motor, 3 is a gear, and 4 is a control printed circuit board.
5 is a displacement electric converter for motor control (potentiometer, encoder, etc.), 6 is a flow valve for controlling the flow rate of an air turbine (dental treatment instrument), and 7 is an output adjustment volume. When the operator operates and adjusts the output adjustment volume 7, the output voltage Va changes. For example, when the output voltage Va of the volume 7 becomes higher than the output voltage Vb of the displacement electrical converter 5, the operational amplifier 8
The photocoupler 10 operates to rotate the motor 2, and the output voltage Vb of the displacement electric converter 5 is connected to the motor 2.
When the output voltage Va of the displacement electric converter 5 becomes equal to the output voltage Va of the volumetric volume 7, it stops. Further, when the volume 7 is operated and adjusted so that the output voltage Va of the volume 7 becomes smaller than the output voltage Vb of the displacement electric converter 5, the operational amplifier 9 and the photocoupler 11 are operated, and the motor 2 is reversed. It rotates in the same direction as before, and stops when the output voltage Vb of the displacement electric converter 5 becomes equal to the output voltage Va of the volume 7. In this way, the motor 2 always keeps the difference between the variable output voltage Va of the output adjustment volume 7 operated by the operator and the output voltage Vb of the motor control displacement electric converter 5 connected to the motor 2 to 0. The motor 2 is rotated in forward and reverse directions so that the motor 2 occupies a position corresponding to the adjustment position of the output adjustment volume 7. Therefore, by connecting the output adjustment volume 4, flow rate adjustment valve 6, etc. of the necessary dental treatment instruments to the motor 2, it can correspond to the output adjustment volume 7 operated by the operator from a micro engine or an air turbine. You can get the following output. In addition, in the electric circuit shown in FIG.
is prevented from operating except when it is required to operate by a motor drive signal a supplied from another unit control board (not shown). In addition, if the motor 2 is made into a stepping motor and controlled by a microcomputer, the output value of each dental treatment instrument can be stored in advance, and the output value can be stored by operating the readout button. It is also possible to obtain the stored rotation speed, output, etc.

FIG. 3 is an electrical circuit diagram in which the dental instrument control circuit previously proposed by the present applicant (Japanese Patent Application No. 170520/1982) has been partially improved so that it can be applied to the present invention. In a dental instrument control device having a chair control section and an instrument control section, while the instrument is being driven, a chair input prohibition signal is supplied from the instrument control section to the chair control section to control the chair operation switch. Inputs are prohibited, and even if the chair operation switch is turned on by mistake while the instrument is in use, the chair will not operate, thereby improving safety. Turbine, d is micro engine (ME), e is scaler, is level control section, is level display section, is air valve section, is micro engine drive section, is scaler drive section, is controller section, is unit control section, is Chair control section, S ₁ ~ _{S 5} are instrument holder switches, S ₆ is controller forward rotation switch, S ₇ is controller reverse switch, S ₈ is turbine spray switch, S ₉ is micro engine spray switch, V ₁ ~ V ₅ is the instrument pilot solenoid valve, V ₆ is the turbine drive unit, micro engine cooling solenoid valve, V ₇ is the solenoid valve for the turbine chip, V ₈ is the turbine, solenoid valve for the micro engine spray, Ly ₁ is for the micro engine start Relay, Ly ₂ is a micro engine reversal relay,
Ly ₃ is the scaler start relay, IN ₁ to _{IN 9} are the input terminals of the unit control section, OUT ₁ to OUT ₁₃ are the output terminals, output terminal OUT ₁₂ is the level control drive signal output terminal, and OUT ₁₃ is the chair control signal output terminal. This is a chair input prohibition signal output terminal that prohibits input. Thus, in the present invention, spray switches S ₈ and S ₉ are connected to spray/start switch S ₁₆ of the controller section.

4 and 5 are diagrams in which the lever type controller (Utility Application No. 57-52923) previously proposed by the present applicant has been partially improved so that it can be applied to the present invention.
The figure is a schematic plan view of the main part, and FIG. 5 is a partial side sectional view thereof. In the figure, 21 is a control disk, 22 is a lever integrated with the control disk 21, 23 is a rotating shaft,
Reference numerals 24 and 25 refer to lever return blades disposed on the rotary shaft 23 so as to be rotatable coaxially with the control disc 21, and 26 refer to these lever return blades 24 and 2.
5 in the direction of mutual attraction; 27 is a stopper for these lever return vanes; 28 is a control disc 21 having a circle A or B coaxial with the control disc; A sector-shaped window with a gear 29; 30 is a rotary sensor, for example, a control volume, for detecting the amount of rotation of a control disk (or lever); Or used as a scaler power control. 31 engages with a gear 29 provided on the control disc 21 to control the amount of rotation of the control disc 21 by controlling the control volume 3.
0 pinion, 32 is the control disk 2
A locking (brake) device 33 for fixing the lever (or control disc) in any desired position prevents the control disc from vibrating near the initial position when the lever (or control disc) is automatically returned to the initial position. The vibration prevention devices S ₆ and S ₇ are micro switches that engage with a cam surface provided on the outer circumferential surface of the control disc 21, and the micro switches are used, for example, to control forward and reverse rotation of the instrument. It is used as a start switch and corresponds to switches S ₆ and S ₇ shown in FIG.

In FIGS. 4 and 5, the operation panel 35, spray/start switch S ₁₆ , and specification changeover switch S ₁₈ are specially provided for carrying out the present invention, and normally the lever 22 is By operating the lever 22, each instrument can be controlled with power corresponding to the rotation angle of the lever 22, and if desired, by using the additional means according to the present invention, the specification changeover switch _S18 can be switched.
If you use the lever 22 in this state with the lever locked, the lever 22 will stop at the desired rotation angle. From now on, when you step on the operation plate 35 and turn on the switch S ₁₆ in this state, each instrument will be activated. It operates with power according to the rotation angle of the lever.

FIGS. 6 and 7 are electrical circuit diagrams for explaining the operation of the present invention. In the figures, parts having the same functions as those in FIGS. 1 to 5 are given the same reference numerals. be.

As described above, in the present invention, during normal use, each instrument is power-controlled according to the conventional dental instrument control method. At this time, the output terminal OUT ₁₂ is a level control drive signal output terminal, and this signal is a motor drive signal for the output adjustment device of the plurality of dental treatment instruments, and at the same time it is a control signal for the output adjustment device of the dental treatment instruments. The level driving of a single output display device is performed according to the following. In other words, by turning on the instrument switches S ₁ to S ₅ and the controller forward rotation switch S ₆ , each valve,
The relay operates and a power control signal is output, and the power control unit controls the power in correspondence with the operating volume and displays it on the level meter. Now, if you connect the wiring of this controller part as shown in Figure 6 and insert the specification changeover switch _S18 to the right side as shown by the dotted line in Figure 7, a pin will be inserted.
Wired to OUT ₁₂ . Since this OUT ₁₂ signal is the motor drive signal a shown in Figure 2, it does not drive each operation valve or relay, but controls the power according to the angle of the lever, and at the same time displays the information on the level meter. This allows you to adjust the power you want to set in advance. In this state, by similarly turning on each instrument S ₁ to S ₅ and spray/start switch S ₁₆ ,
Each valve and relay operates, and the power can be used at the preset value as described above.

Effects As is clear from the above explanation, according to the present invention, it is possible to use different controllers simply by turning the specification changeover switch on and off.
If you always want to treat with the same power, you can set the specification changeover switch _S18 to the dotted line shown in Figures 6 and 7. In this way, you can set the desired power by simply stepping on the operation panel. This eliminates the need for cumbersome lever controls, making treatment work much easier.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram for explaining an example of an output adjustment device used in carrying out the present invention, FIG. 2 is an electric circuit diagram, and FIG. 3 is a dental instrument control circuit diagram. FIG. 4 is a plan view of the lever type controller, FIG. 5 is a side view of the main part, and FIGS. 6 and 7 are electrical circuit diagrams of the main part for explaining the operation of the present invention. 1...Control printed circuit board, 2...Motor, 3
... Gear, 4 ... Micro engine drive volume, 5 ... Displacement electric converter for motor control, 6 ...
Air turbine flow rate control flow valve, 7... Output adjustment volume, 8, 9... Operational amplifier, 10, 1
1...Photocoupler, 21...Control disk, 22...
...Lever, 23...Rotating shaft, 24, 25...
...Lever return blade, 26...Spring, 27...
... Stopper, 28 ... Window, 30 ... Rotation sensor, 32 ... Lock device, 33 ... Vibration prevention device, 35 ... Operation panel, a to e ... Instrument, ... Level control section, ... Level display section, ... air valve section, ... micro engine drive section, ... scaler drive section, ... controller, ... unit control section, ... chair control section, S ₁ to S ₅ ... instrument switch , S ₆
...Forward rotation switch, S ₇ ...Reverse rotation switch, S ₈ , S ₉
...Spray switch, S ₁₆ ...Spray/start switch, S ₁₈ ...Specification changeover switch.

Claims (1)

[Claims] 1. In a dental treatment controller that controls the power of an instrument according to the rotation angle of a foot lever, a specification changeover switch, a foot operation plate provided under the foot lever, and a foot operation plate operated by the foot operation plate are provided. After the specification changeover switch is switched and the foot lever is fixed at a predetermined rotational position, the instrument is moved to the position where the lever is fixed by operating the foot operation plate. A dental treatment controller characterized in that it can be driven with power depending on the rotation angle position.