JPH033291Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a gas burner type spatula for wax-up, which is used in dental treatment when molding a denture mold to be attached to a tooth to be treated using wax.

In dental treatment, when making dentures, an impression of the teeth to be treated is taken with an impression material, plaster is poured over the impression to create a plaster mold, and the mold of the denture to be attached is filled with wax on the plaster mold. After molding, remove the wax mold from the plaster mold, attach a runner, pour plaster around it to make a mold, bake the mold to burn the wax, and pour hot water from the runner to make the metal denture. At this time, a gas burner-type spatula made in the style of a pen holder is used for the wax-up process, in which the wax is applied to the plaster mold.

As shown in FIG. 1, this spatula A is formed into a cylindrical shape that can be grasped in the palm of the hand, has a gas cylinder 10 installed inside, and has an adjustment at the bottom that adjusts the amount of gas discharged from the discharge port of the cylinder 10. dial 1
A gas burner 2 having a platinum catalyst 20 in its combustion section is connected to the tip side of a body 1 made of a synthetic resin material incorporating a gas burner 2, and a conduit 21 thereof is connected to an operating section provided in the body 1. An outer cylinder 22 made of a metal material that surrounds the combustion part of the gas burner 2 is connected and communicated with the discharge port of the cylinder 10 through an on-off valve that is opened and closed by the operation of 12, and a threaded part 23 is provided at the base end thereof. A chip 24 made of a metal material is provided, and a spatula 3 . . . formed in various shapes as shown in FIG.
It is constructed by selecting and attaching it interchangeably as appropriate, and when doing wax-up work, first attach the spoon-shaped spatula 3 to the tip.
The combustion section is ignited with the gas in the gas cylinder 10 spewed out by operating the operating section 12, and the desired amount of gas is adjusted by operating the adjustment dial 11 provided at the bottom of the body 1. Hold it in your palm like this, and when the spatula 3 at the tip has heated up to a predetermined temperature, scoop out the wax while melting it with the spatula 3 at the tip, apply it to the designated area of the plaster mold, and then apply the wax to the specified area of the plaster mold. Replace No. 3 with a knife-like object and use it to scrape off the applied wax and shape it into the shape of the denture you are trying to mold.

By the way, the gas burner type spatula A used in this way is used to scoop raw material wax from a container with the spatula 3 at the tip, and also to shape it into a predetermined shape by scraping off wax that has been applied to a plaster mold. When the spatula 3 at the tip is in an upward position due to slight adjustment of the operation, a part of the wax melted and placed on the spatula 3 runs down the handle 3a of the spatula 3. If the flowing wax adheres to the platinum catalyst 20, it will impair the action of the platinum catalyst 20 and cause the gas combustion operation to malfunction. There is a problem in that the operation must be constantly performed with care so that wax does not flow into the platinum catalyst 20 of the gas burner 2, which makes the operation inconvenient.

The present invention has been made to solve this problem, and during wax-up work, a part of the scooped wax or shaved wax drips onto the handle 3a of the spatula 3 and the gas burner 2. To provide a gas burner type spatula which can be operated freely without paying particular attention by preventing the platinum catalyst 20 of a gas burner 2 from flowing even if the gas flows toward the gas burner 2. With the goal.

In the present invention, as a means for achieving this purpose, a gas cylinder is housed inside, and an adjustment dial for adjusting the amount of gas discharged from the discharge port of the gas cylinder is provided on the outer surface, and an adjustment dial is provided on the outside to open and close the discharge port. A cylindrical body equipped with an operating part of an on-off valve, and a conduit attached to the distal end of the body on the base end side and connected to the discharge port of the gas cylinder in the body. , a gas burner equipped with a catalyst at the tip side of the pipe, a combustion part whose outer periphery is surrounded by a metal outer cylinder, which is connected and communicated with, and a threaded part is provided at the end of the outer cylinder of the combustion part; In a gas burner type spatula, which includes a spatula that is removably assembled to a threaded portion at the tip of the outer cylinder of the gas burner, the spatula is attached to the base end of the handle of the spatula in a direction extending from the circumferential surface of the handle to four circumferences. The present invention proposes a gas burner type spatula characterized by being equipped with a flange that expands.

Next, an example of implementation will be described in detail with reference to the drawings. Note that the same reference numerals in the drawings as in the previous means are used for components having the same effect.

FIG. 3 is a partially cutaway side view of a gas burner type spatula A in which the present invention can be implemented. In the figure, 1 is a body, 2 is a gas burner attached to the tip of the body 1, and 3 is a gas burner. The spatula attached interchangeably to the tip of 2 is shown.

The body 1 is a normal pen holder type body made of synthetic resin and molded into a cylindrical shape. Inside, a gas cylinder 10 containing liquefied gas is stored, and at the bottom,
An adjustment dial 11 is installed to adjust the amount of gas ejected from the discharge port of the gas cylinder 10, and an operating part 12 is provided on the tip side to open and close the on-off valve provided at the discharge port of the gas cylinder 10. In addition, a connecting hole 13 for fitting and connecting the conduit 21 on the proximal end side of the gas burner 2 is opened in the end face on the distal end side so as to connect and communicate with the discharge port of the gas cylinder 10 described above. be.

The gas burner 2 has a window hole 22a in the peripheral wall at the tip of a cylindrical pipe 21 which is made of metal and is screwed into the connection hole 13 of the body 1 for connection and communication.
A bottomed outer cylinder 22 made of a metal material is connected, and inside the outer cylinder 22 there is a nozzle connected to the pipe 21 and a cylinder made of an extremely thin platinum catalyst 20 surrounding the nozzle. A tip 24 made of a metal material and having a threaded portion 23 at its base end is provided on the distal end side of the outer cylinder 22 made of a metal material. This is a conventionally known method.

The spatula 3, which is interchangeably attached to the distal end side of the outer cylinder 22 of the gas burner 2, has a connecting cylinder part 3 screwed into the threaded part 23 at the distal end of the outer cylinder 22 on the base end side.
0, and a working part 3b formed on the tip side of the handle part 3a, and the working part 3b is
As shown in the upper row of Figure 4, there is a spoon-shaped object, the 4th
They are formed in various shapes, such as a knife-like one as shown in the middle of the figure, and a trowel-like one as shown in the lower part of FIG. It is similar to the previous means that it is compatible with the threaded part 23 at the tip of the outer cylinder 22 of the burner 2, but it is attached to the base end of the handle 3a of the burner 2. is equipped with a flange 4 whose end face toward the tip side forms a ring-shaped wall surface 40 that extends radially from the circumferential surface of the handle 3a to approximately the outer diameter of the outer cylinder 22 of the gas burner.

On the side shown in FIG. 4, the flange 4 is integrally formed with the handle 3a of each spatula 3 and the metal material forming the spatula 3, but is made of a separate metal material to form the outer cylinder of the gas burner 2. Threaded part 2 at the tip of 22
3, and when installing the spatula 3, fit it into the threaded part 23 at the tip of the outer cylinder 22 of the gas burner 2, and insert the spatula 3 into the threaded part 23. By wearing it, the handle part 3 of the spatula 3 will become smaller as shown in Figure 5.
In some cases, it is installed at the proximal end of a.

In the gas burner type spatula A according to the present invention constructed as described above, during wax-up work, the working part 3b of the spatula 3 at the tip is attached to the handle part 3a.
Even if the molten wax adhering to the working part 3b flows down the handle part 3a toward the hand side when the position becomes higher,
When the wax hits the wall surface 40 toward the tip of the collar 4, it drips down the wall surface 40 from the circumferential surface of the handle 3a of the spatula 3. This reliably prevents the wax flowing down the handle 3a toward the hand from adhering to the catalyst 20 of the gas burner 2.

Therefore, according to the means of the present invention, there is no possibility that wax scooped up by the spatula or adhered wax flows to the gas burner side and adheres to the catalyst during wax up work. , it becomes possible to obtain a gas burner type spatula that can be operated freely without paying special attention to the operation.

[Brief explanation of the drawing]

FIG. 1 is a side view of a conventional gas burner type spatula, FIG. 2 is a perspective view of a spatula that can be installed interchangeably with the same, and FIG. 3 is a partially cutaway side view of a gas burner type spatula that can implement the present invention. Figure 4 is a perspective view of the spatula that can be attached interchangeably with the same as above, Figure 5
The figure is a side view of main parts of another embodiment. Explanation of drawing symbols, A...Gas burner type spatula, 1...Body, 10...Gas cylinder, 11
...Adjustment dial, 12...Operation unit, 13...Connection hole, 2...Gas burner, 20...Platinum catalyst,
21... Conduit, 22... Outer cylinder, 22a... Window hole,
23...Thread part, 24...Tip, 3...Spatillage, 3a...Handle part, 3b...Working part, 30...
Connecting tube portion, 4... tsuba, 40... wall surface.

Claims (1)

[Scope of utility model registration request] A cylindrical body that houses a gas cylinder inside and is equipped with an adjustment dial on the outer surface for adjusting the amount of gas discharged from the discharge port of the gas cylinder and an operating part for an on-off valve that opens and closes the discharge port; The proximal end is equipped with a conduit that is attached to the distal end of the body and connected to the discharge port of the gas cylinder in the body, and the distal end of the conduit is equipped with a catalyst, and the outer periphery is made of a metal material. A gas burner in which a combustion part surrounded by an outer cylinder is connected and communicated, and a threaded part is provided at the tip of the outer cylinder of the combustion part, and the threaded part at the tip of the outer cylinder of the gas burner can be freely attached and removed. In a gas burner type spatula consisting of an attached spatula, at the base end of the handle of the spatula,
A gas burner type spatula characterized by being equipped with a tsuba that spreads out from the circumference of the handle to all four sides.