JPH0123138B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present application relates to a hand equipped with an actuating part operated by pressurized air, such as an air turbine, an air motor, an air vibrator, or a jet nozzle, and a lighting lamp for illuminating an affected area. Related to dental treatment instruments such as pieces and scalers.

BACKGROUND ART Conventionally, a hand-held member is provided with an operating part operated by pressurized air, such as an air turbine or an air vibrator, or an operating part driven by an air motor, at its tip head, and has a fitting recess at its rear end; A fitting cylinder is connected to a fitting cylinder at the tip and a fitting member to which a flexible hose for introducing pressurized air is connected to the rear end is rotatably and detachably connected by a coupling mechanism, and a fitting cylinder is inserted into the inside of the hand-held member from the fitting recess. A dental treatment instrument comprising a light guide led to a distal head, and an illumination lamp connected to the fitting cylinder of the joint member by a coupling mechanism and facing the rear end surface of the light guide. is known, for example, from Japanese Patent Application Laid-Open No. 58-4545.

Problems to be Solved by the Invention According to the above-mentioned known dental instrument, a long lead wire for supplying power to the illuminating lamp together with a hose for supplying pressurized driving air may be led out from the rear end of the dental treatment instrument. Since it has to be inserted into a flexible hose, the flexible hose has a large diameter and lacks flexibility, impairing operability in dental treatment, and has the disadvantage that the lead wire often breaks. .

Means for Solving the Problems Therefore, the present application provides a small generator operated by pressurized air in the main body of the treatment instrument, and uses this generator to light the illumination lamp. This eliminates the shortcomings.

Embodiment and its operation FIG. 1 is a sectional view showing the handheld member A and the joint member B separately, and these
They are rotatably and detachably connected via a known connection mechanism C shown in Japanese Patent No.-22728. The hand-held member A has a fitting recess 5 with a narrow diameter recess 4 connected to the rear end of the shaft 3 having a head 2 with a built-in pressurized air actuator 1 at its end, and a fitting recess 5 connected to the shaft center. A light guide line 6 is provided along the line and inside thereof, the tip extends to the head 2 and is exposed to the outside, and the rear end face faces the center of the narrow diameter recess 4, and the rear end is inside the fitting recess 5. Open with
An air supply path 7 for driving pressurized air whose tip is guided into the head 2, and an exhaust path (not shown) that guides the pressurized air after the pressurized air operating section 1 is activated, as in the conventional case. , a tip air passage and a water passage for spouting mist from the head 2 are provided, respectively, and a connecting cylinder 8 of a connecting mechanism C is provided at the rear end of the shaft portion 3. On the other hand, the joint member B has a fitting cylinder 10 protruding from the distal end of the body 9, which rotatably fits into the fitting recess 5 of the hand-held member A, and a flexible hose 11 at the rear end. At the tip of the fitting cylinder 10, there is a replaceable lamp cartridge 13 having an illumination lamp 12 that fits into the small diameter recess 4 and faces the rear end surface of the light guide line 6. an air inlet hole 14 that opens at the rear surface and introduces pressurized air into the hand-held member A through a supply hose 11' in the flexible hose 11; Although not shown, passages communicating with the exhaust passage, the tip air passage, and the water passage of the hand-held member A are provided in the fitting cylinder 10, and the pressurized air from the air inlet 14 is supplied to the hand-held member A. Through hole 15 that supplies air to the air supply path 7
is provided. In the body 9 of the joint member B configured as described above, there is provided an impeller 16 which is rotated by pressurized air from the air inlet 14, and a small generator 17 directly connected to the impeller 16. A unit 18 is provided, and the pressurized air after rotating the impeller 16 is guided to the through hole 15 through the ventilation hole 19 and the inside of the fitting cylinder 10. The power generation unit 18 has a terminal, and this terminal is electrically connected to the lighting lamp 12 of the lamp cartridge 13 via a lead wire 20. Note that the front end portion of the body portion 9 is provided with a connecting mechanism C that is connected to the connecting tube 8.

When pressurized air is introduced from the pressurized air source through the flexible hose 11 into the joint member B, the impeller 16 is rotated by the pressurized air from the air intake hole 14, and the generator 17 is operated. The electricity generated by the generator is transmitted from the terminal to the lighting lamp 12 via the lead wire 20.
is energized, the lighting lamp 12 lights up, and this light beam is
The head 2 is exposed to light through the light guide 6 to illuminate the affected area. On the other hand, the pressurized air after rotating the impeller 16 passes through the insertion cylinder 10 from the ventilation hole 19, and is guided to the air supply path 7 of the hand-held member A from the through hole 15 at the tip of the insertion cylinder 10, and is led to the head of the hand-held member A. Pressurized air operating part 1 in 2
operate.

Effects of the Invention As described above, according to the present application, in a dental treatment instrument equipped with an operating section operated by pressurized air, a generator is operated using the pressurized air that operates the operating section. Since it is configured to turn on the illumination lamp, there is no need to lead a long power cord into the flexible hose as in the past, and there is no risk of damaging the flexibility of the flexible hose, allowing for operation of treatment equipment. Furthermore, since the power generation unit is driven by the intake of pressurized air, the power generation efficiency is high, and the power generation unit can be made smaller. In addition, since the intake of pressurized air can be arbitrarily adjusted, pressurized air can be supplied without interfering with the operating efficiency of the actuating part. In particular, according to the present application, the hand-held member provided with the actuating part and a joint member having a flexible hose connected to its rear end, which are removably connected to each other. The joint member can be used in common for hand-held members having different functions or performances, which has advantages such as being economical and extremely convenient for treatment work.

[Brief explanation of drawings]

The drawings show an embodiment of the present application, and FIG. 1 is a longitudinal cross-sectional view of the hand-held member and the joint member in a separated state, and FIG. 2 is another cross-sectional view of the joint member. In the figure, 1 is a pressurized air operating part, 2 is a head, 6 is a light guide line, 11 is a flexible hose, 12 is a lighting lamp, 16
17 is an impeller, 17 is a small generator, 18 is a power generation unit, A is a hand-held member, B is a joint member, and C is a coupling mechanism.

Claims (1)

[Claims] 1. A hand-held member comprising an operating part operated by pressurized air, a light guide line directed toward a treatment point, an illumination lamp for irradiating the light guide line at the front end, and a flexible member at the rear end. A dental clinic configured to rotatably and/or detachably connect a joint member to which a hose is connected via a connecting mechanism, and to introduce pressurized air from a supply hose in the flexible hose to supply it to the operating section. The treatment device is equipped with a power generation unit in which an impeller rotated by pressurized air introduced through a flexible hose is connected to a generator in the joint member, and a terminal of the generator is connected to the illumination. A dental treatment instrument characterized by being connected to a light and guiding pressurized air after rotation of an impeller to an operating part of a hand-held member.