JPS6116171B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compressed air type tartar remover for removing tartar, plaque, etc.

During treatment that requires removal of tartar, plaque, etc.
Conventionally, a non-drive manual type tartar remover, or a driven type such as an electric ultrasonic tartar remover or a compressed air type tartar remover has been used. Each of the above three methods has its own merits and demerits in terms of performance and functionality, but compressed air-type tartar removers have been particularly effective in recent years from the viewpoint of operability, safety, and economy. It's getting recognized. However, the conventional compressed air type tartar remover has the following problems. The vital vibration source of a compressed air tartar remover includes a thin-walled cylindrical body or a star-shaped rotating body that is rotated by a jet of compressed air, and these rotating bodies are easily damaged. Therefore, when the thin-walled cylindrical body or the star-shaped rotating body is damaged, vibration is naturally not generated, making it impossible to remove tartar, plaque, etc., and furthermore, repairing and replacing the damaged part is extremely troublesome.

The present invention was invented in view of the above-mentioned points, and its characteristics are that it does not have a rotating body such as a conventional thin-walled cylindrical body or a star-shaped rotating body, and has a strong and simple shape that is difficult to break. To provide a compressed air type tartar remover, which is a rod-shaped vibrating body with a structure that allows the vibrating body to be easily repaired or replaced even if the vibrating body is damaged or abnormal. be. Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view of one embodiment of the compressed air type tartar remover of the present invention. FIG. 2 is a longitudinal cross-section of a casing having multiple and multiple rows of spray ports. Figure 3 is the second
A sectional view taken along the line A-A in the figure. FIG. 4 is a longitudinal sectional view of the casing with its rear end closed. FIG. 5 is a longitudinal sectional view of a casing in which the inner diameter of the middle portion is larger than the inner diameter of the end portion.

The casing 3 is inserted into a hollow cylindrical grip 4 having a supply passage 9 for supplying compressed air, an exhaust hole 10 for exhausting the compressed air, and a protrusion 18 on its inner wall, with the rear end surface of the protrusion 18 abutting it. A groove 8 is provided on the outer periphery of the casing 3 to engage with the supply passage 9.
The compressed air blowing port 7, which is a fine hole that communicates between the groove 8 and the inside of the casing 3, is perpendicular to the axis of the casing 3, and the center line of the cross section of the casing 3 including the axis of the blowing port 7. Provided at an angle to the Further, the rear end member 5 engages with an intake pipe 14 that takes in compressed air and a supply passage 9 of the upper air grip 4, and an air supply passage 15 that communicates with the upper air supply pipe 14.
and an exhaust passage 16 for exhausting compressed air,
It is detachably connected to the grip 4 by the rear end connection part 19, and fixes the casing 3. The rod-shaped vibrating body 2 has a stopper stage 1 at a position corresponding to the static point of vibration.
1, and a detachable tip connection part 13 at the tip.
having a rear end portion inserted into the casing 3,
The stopper stage 11 is supported by elastic bodies 12 from both sides. The elastic body 12 is fixed on one side by the distal end surface of the protrusion 18 of the grip 4, and on the other hand by the distal end 6 which is detachably connected to the grip 4 through a distal end connecting portion 20. Therefore, the rear end of the vibrating body 2 is a free end inside the casing 3,
Further, the tip of the vibrating body 2 is also a free end.

The chip 1 is connected to the tip of the vibrating body 2 of the compressed air type tartar remover having the structure of the present invention, and the air supply pipe 1
If compressed air is supplied from 4 (the flow of compressed air is indicated by an arrow), the compressed air will be supplied to the air supply passage 15,
It is ejected into the casing 3 through the supply passage 9 and from the injection port 7 which is a fine hole. The compressed air ejected from the microscopic blowing port 7 becomes a high-speed jet flow, flows through the space between the casing 3 and the vibrating body 2, and advances to the exhaust chamber 21.
At this time, since the rear end of the vibrating body 2 is a free end, the rear end is shaken by the high-speed jet of compressed air and generates vibration. Furthermore, since the blowing port 7 of the casing 3 is provided at an eccentric angle, rotational force acts on the rear end of the vibrating body 2, but since the stopper stage 11 of the vibrating body 2 is fixed by the elastic body 12, It is not rotatable, so the applied rotational force becomes rotational vibration and acts on the rear end. This vibration is transmitted from the rear end of the vibrating body 2 to the tip end, and further to the connected chip 1. Due to the vibrations including rotational vibration transmitted to the tip of Tip 1, when the tip of Tip 1 lightly touches tartar and plaque, the tip of Tip 1 hits the tartar and plaque thousands of times per second, breaking up the tartar and plaque. removed. Further, the compressed air that is blown into the inside of the casing 3 and generates vibrations in the vibrating body 2 is sent from the exhaust chamber 21 in front of the casing 3 to the exhaust hole 10, and from the exhaust chamber 21 at the back to the exhaust passage 16 through the sound deadening material 17. It passes through the air, muffling the exhaust noise and exhausting it into the atmosphere.

As described above, the compressed air type tartar remover of the present invention has a simple structure, does not require high-precision machining, and can sufficiently exhibit its performance with normal machining precision. Therefore, the manufacturing cost is low and it can be provided at a low price, and as mentioned above, the vibration of the tip allows comfortable treatment. Furthermore, unlike electric ultrasonic tartar removers, there is no need to bring the electric part close to the oral cavity, so it is extremely safe. Also, there is no rotating body like in conventional compressed air tartar removers,
Therefore, there are no accidents such as damage, and even if an abnormality occurs in the vibrating body 3 of the present invention, by removing the tip 24, the vibrating body 3 can be easily removed and repaired, or replaced with a new vibrating body. It is also possible.

Next, in carrying out the present invention, it is also possible to improve the performance by employing the following methods or by employing a combination of them.

(1) The circumference of the casing 3 is equally divided into a plurality of blow ports 7 of the casing 3 and a plurality of rows are provided (this example is divided into four equal parts and shown in two rows as shown in FIGS. 2 and 3), and compression is performed. Increases the high-speed jet of air and increases the vibration energy and frequency.

(2) The rear end of the casing 3 is closed (FIG. 4), the sound deadening material 17 and the exhaust passage 16 are eliminated, and the manufacturing cost is further reduced to provide an inexpensive tartar remover.

(3) The inner diameter of the middle part of the casing 3 is larger than the inner diameter of the end part (Fig. 5), which increases the cross-sectional area of the high-speed jet of compressed air and increases the vibration energy and frequency.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of one embodiment of the compressed air type tartar remover of the present invention. FIG. 2 is a longitudinal cross-sectional view of a casing having multiple and multiple rows of spray ports that equally divide the circumference of the casing. FIG. 3 is a sectional view taken along the line A-A in FIG. 2. FIG. 4 is a longitudinal sectional view of the casing with its rear end closed. FIG. 5 is a longitudinal sectional view of a casing in which the inner diameter of the intermediate portion is larger than the inner diameter of the end portions. DESCRIPTION OF SYMBOLS 1...Tip, 2...Vibrating body, 3...Casing, 4...Grip, 6...Tip, 7...Blowing port, 11...Stopper step, 17...Sound deadening material, 2
0...Tip connection part.

Claims (1)

[Scope of Claims] 1. A grip having a supply passage for supplying compressed air and an exhaust hole for exhausting the compressed air, a hollow casing with a groove around its outer circumference that engages with the supply passage of the grip. The above-mentioned casing has a compressed air blowing port, which is a fine hole that communicates between this groove and the inside of the casing, which is perpendicular to the axis of the casing and at an angle to the center line of the cross section of the casing that includes the axis of the blowing port. A rear end having an air supply pipe that is fitted into the grip and takes in compressed air, an air supply passage that engages with the supply passage of the grip and communicates with the air supply pipe, and an exhaust passage that exhausts the compressed air. The tool is removably connected to the grip, a stopper stage is provided at a position corresponding to the static point of vibration, and the rear end of a rod-shaped vibrating body having a removable tip connection part at the tip is inserted into the casing, A compressed air type tartar remover in which a stopper stage is supported by an elastic body, and a tip for fixing the elastic body is detachably connected to a grip. 2. The tartar remover according to claim 1, wherein the casing is provided with a plurality of compressed air blowing ports and a plurality of rows so as to equally divide the inner circumference of the casing. 3. Claim 1, characterized in that the casing has a cylindrical shape with an open end and a closed end.
or the tartar remover according to item 2. 4 Claim 1 or 2, characterized in that the inner diameter of the casing end is larger;
Or the tartar remover described in paragraph 3.