JPS6226098Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is used in dental treatment when mixing and kneading impression materials or plaster with a rotating rubber ball (bowl made of rubber or synthetic resin material).
This invention relates to an improvement in a kneading spatula that is used to press the impression material, etc. onto the inner surface of the rotating rubber ball to efficiently mix and knead the impression material.

The above-mentioned kneading spatula can be used by forming the left and right side edges of the spatula body into a shape that follows the cross-sectional shape of the inner circumferential surface of the rubber ball. When taken out from the cavity, the plate-shaped spatula body of the kneading spatula is in a posture substantially perpendicular to the inner wall surface of the rubber ball, and one of its left and right side edges is pressed against the inner wall surface of the rubber ball. By doing so, you can use the rotation of the rubber ball to cleanly scrape the kneaded impression material from inside the rubber ball. When pressing the impression material against the inner wall of the rubber ball for kneading, the side edge of the kneading spatula must be kept raised above the inner wall of the rubber ball, otherwise it will always remain inside the rubber ball. Since the impression material and the like are scraped off, the efficiency of kneading becomes poor, which causes a problem of poor usability when using the kneading spatula for kneading.

The purpose of the present invention is to solve these problems, improve ease of use when kneading impression materials, etc., improve the efficiency of kneading, and further improve the efficiency of kneading the impression material from the inner cavity of the rubber ball. It is an object of the present invention to provide a new spatula for training that can efficiently and quickly scrape off such things.

To achieve this purpose, the spatula for kneading dental impression materials, etc., according to the present invention, has a plate-shaped spatula body provided at the tip end of the handle, and the left and right side edges are inserted into the rubber ball. It is characterized in that it is formed into a shape that follows the cross-sectional shape of the peripheral wall, and that a plurality of holes are provided on one half of the left and right sides of the spatula body, through which the impression material to be kneaded, etc. passes.

Next, an example of implementation will be described in detail with reference to the drawings.

Figures 1 and 2 show a training spatula a according to the present invention.
It shows. In the figure, 1 is a spatula body formed of a thin metal plate such as stainless steel, 2 is a handle made of the metal plate continuous to the spatula body 1,
Reference numeral 3 designates a grip that abuts the front and back sides of the handle 2 and is assembled integrally with a rivet 4.

Therefore, the spatula body 1 has its left and right side edges 1
0 and 11 are formed in a shape that follows the cross-sectional shape of the inner wall surface 60 of the rubber ball 6 that is assembled to the rotating shaft 50 that is rotatably supported by the base box 5, as shown in FIG. In addition, on the plate surface of the spatula body 1, one half side 1a on the left and right side when divided into a left half side 1a and a right half side 1b by an imaginary center line W passing through approximately the center of the left and right widths of the plate surface. A plurality of pores 12 having a diameter through which the impression material etc. can pass are formed in an appropriate arrangement.

In addition, a motor and a speed reduction mechanism for driving and rotating the aforementioned rotating shaft 50 at a predetermined speed are provided in the platform box 5, and the rotation operation of the rotating shaft 50 is turned on and off and rotated. The speed is controlled by operating a dial 52 provided on the front panel 51 of the stand box 5. Furthermore, the rubber ball 6 can be attached to and detached from the rotating shaft 50 at will.

Next, to explain the function and effect, the spatula for kneading dental impression materials, etc. according to the present invention, which is configured as described above, has, for example, an impression material b inside the rubber ball 6.
When pressing the impression material b against the inner wall surface 60 of the rubber ball 6 with the spatula body 1 of the kneading spatula a while rotating the rubber ball 6, as shown in FIG. As shown in FIG. 4, the side edge 10 on the side where the holes 12 are formed is in pressure contact with the inner wall surface 60 of the rubber ball 6, and the spatula body 1 is pressed against the inner wall surface 60 of the rubber ball 6, as shown in FIG. A side edge 11 located on the opposite side of the inner wall surface 60 of the rubber ball 6 with respect to the rotation direction (arrow Y direction in FIG. 4)
By lying down so that the side of
The impression material b pressed against the hole 12 formed in the spatula body 1
..., are continuously extruded as shown by the chain line b' in Figure 4, and as a result, mixing and kneading are performed, and the kneading is performed by operating the kneading spatula a. You will be able to do it easily without having to make any adjustments.

Then, put the kneaded impression material b into the rubber ball 6.
When taking it out from the inner cavity of the kneading spatula a, turn the spatula body 1 of the kneading spatula a left and right over from the above case, and remove the side edge 11 of the other half 4b where the holes 12 are not formed.
is brought into pressure contact with the inner wall surface 60 of the rubber ball 6, and in that state, as shown in FIG.
As in the case of kneading described above, by placing the spatula body 1 in the direction of rotation (in the direction of the arrow in FIG. 5), the kneaded impression material b can be efficiently scraped from the inner cavity of the rubber ball 6. become.

Therefore, according to the present invention, it is possible to efficiently knead the impression material, etc. and scrape off the kneaded impression material, etc., and also to provide a kneading method that makes it easy to use during kneading. A spatula for use is obtained.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the kneading spatula according to the present invention, Fig. 2 is a side view of the same as above, Fig. 3 is a partially broken side view of the same as the above in use, and Figs. 4 and 5 are the same as the above. FIG. 3 is a plan view of the device in use. Explanation of drawing symbols, a...Kneading spatula, b...Impression material, 1... Spatula body, 1a...Left half side, 1b...
Right half side, 2... Handle, 3... Grip, 4... Rivet, 5... Base box, 50... Rotating shaft, 51... Panel, 52... Dial, 10, 11... Side edge, 1
2... Pore, 6... Rubber ball, 60... Inner wall surface, W... Virtual center line, b'... Extruded impression material.

Claims (1)

[Scope of utility model registration request] The left and right side edges of the plate-shaped spatula body provided at the tip of the handle are formed into a shape that follows the cross-sectional shape of the inner circumferential wall of the rubber ball, and a kneading impression is formed on one half of the left and right sides of the spatula body. A spatula for kneading dental impression materials, etc., characterized by having a plurality of pores through which materials pass through.