JP2003319949A - Gas type instrument for prosthodontics - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cordless gas type instrument for prosthodontics in which convenience is improved also as a handy portable type. <P>SOLUTION: In the gas type instrument for prosthodontics which is equipped with a liquid gas storage part for storing a liquid gas to be a fuel, a gas quantity control part for controlling a quantity of liquid gases to be emitted from the liquid gas storage part, a cylindrical burner as a burning apparatus for the liquid gas, a combustion chamber provided adjacently with the cylindrical burner, and a top working part to be a direct working portion of prosthodontics by storing burning heat in front of the combustion chamber, and is provided for softening wax for prosthodontics, the top working part is heated to a temperature suitable for softening the wax for prosthodontics, and the instrument is available as a cordless portable instrument. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for directly heating and softening dental wax.

[0002]

2. Description of the Related Art Conventionally, as an auxiliary material for dental treatment and dental technics, such as tooth engagement, creation of a wax pattern for casting, and wax wax denture for making a denture, it has been used for dental technics. Wax is used.

The above-mentioned dental treatment and the like are carried out with the wax warmed and softened. As a method of softening the wax, there are a direct softening method and an indirect softening method.The direct softening method is a method of directly contacting the wax with a flame such as a heated heater or a gas burner to soften the wax. is there. As an indirect softening method, there is a method of softening the wax by immersing the wax in warm water adjusted to a temperature at which the wax softens.

Conventionally, alcohol lamps or gas burners are used for the direct softening of wax used by dental technicians. In many cases,
A method has been used in which a dental appliance having a simple rod-like or spoon-like shape is applied, and the heated appliance is brought into wax to be softened.

However, in the method using the alcohol lamp or the gas burner, the fingertip becomes hot, and the gas burner continues to burn on the side of the patient during the work, which is uneconomical and the impression given to the patient is not good. There was a point.

Further, once the wax has cooled and softening has weakened, it is necessary to bring the dental instrument closer to an alcohol lamp or the like to warm it each time, which is troublesome.

Another aspect of the present invention is an electric dental instrument which is easy to carry and which emphasizes excellent portability.

This electric type does not cause the above-mentioned problems, but because it is an electric type, the cord is a hindrance during work or cannot be used in a place without an outlet. Another problem is occurring.

There is also a portable gas type soldering iron for industrial use, not for dental use. A liquid gas reservoir is provided in the main body, and the solder is melted by igniting and heating the small hands.

In the dental technique, the object to be softened is the wax, but this is the same in the work of heating.

However, there is a problem in using the soldering iron as it is for softening the wax for the dental technician. The soldering iron has a short distance from the burning portion to the tip working portion, and the temperature of the tip working portion is 700 ° C. It has a combustion part structure and a tip structure that rises up to 900 ° C. The temperature is too high for softening the wax whose main component is carnauba for dental technology.

It is an object of the present invention to provide a gas instrument for cordless dental technicians, which is more useful than ever before and is very useful for carrying.

[0013]

The present invention according to claim 1 is a gas instrument for a dental technique for softening a wax for a dental technique, which is a liquid gas reservoir for storing a liquid gas serving as a fuel. A gas amount adjusting unit that adjusts the amount of liquid gas ejected from the liquid gas storage unit, a cylindrical burner that is a combustion device for the liquid gas, and a combustion chamber provided adjacent to the cylindrical burner, A tip working part that stores combustion heat in the front of the combustion chamber and is a direct working part of a dental technician,
It is characterized by including.

The present invention is a gas instrument for dental technique, wherein the tip working portion has a high temperature portion and a front portion of the high temperature portion in the shape thereof from the side of the cylindrical burner toward the tip of the working portion. And a low temperature part including a tip in front of the middle temperature part, and the high temperature part and any one or a plurality of the middle temperature part and the low temperature part have a desired temperature and a desired temperature for each dental work. It is characterized by obtaining a structure.

Further, a member composed of the liquid gas storage portion, the gas amount adjusting portion and the tubular burner arranged at the tip end thereof is used as a main body grip portion, and the cylinder when the main body grip portion is fitted. A member composed of a cover portion that covers at least a part of the cylindrical burner, the combustion chamber and the tip working portion is used as a main body working portion, and the main body grip portion and the main body working portion are attached and detached to two independent members. It may be configured as follows.

Further, one arbitrary main body working section may be selected from a plurality of kinds of main body working sections having different tip working section shapes at any time, and the main body working section may be replaceably attached to the main body grip section.

Further, in order to be replaceable, the tubular burner has an upper portion covered by the cover portion of the body working portion when the body working portion is fitted into the body grip portion, and the cover. And a lower portion having a large diameter through a step without being covered by a portion, and a flange that is in contact with the step of the lower portion is provided at a lower end of the cover portion of the main body working portion that covers the upper portion. And a body working portion fixing stopper having a locking portion for covering the brim that abuts on the step is provided outside the lower portion having a large diameter, and a male member formed on the outer surface of the lower portion is provided. A female screw portion to be screwed with a screw portion is formed inside the main body working portion fixing stopper, and the collar of the main body working portion is engaged with the step of the lower portion and the main body working portion fixing stopper. You may comprise so that it may be fixed between parts.

Further, a leg member for supporting the main body may be provided, and the leg member may be detachable from the main body.

In this case, the leg member has a leaf spring portion for fixing the body and the leg member, and a knob portion arranged adjacent to the leaf spring portion so as to deform the leaf spring portion. It can be configured as having a leaf spring structure.

Further, the tip working portion shapes of a plurality of types of the body working portions which are detachably attached to the body grip portion and have different tip working portion shapes, have a spoon shape in which gentle irregularities are provided on the entire surface. It can be configured to have a spoon-shaped shape represented by a shape, or a plurality of kinds of shapes including at least a pointed shape manufactured by applying a deformation such as bending, protrusion, or forging pressure to a part of an elongated rod.

[0021]

According to the means based on the above, gas is ejected from the liquid gas storage portion through the gas amount adjusting portion, and ignited and burned by the cylindrical burner which is a combustion device. Then, by the high temperature combustion gas discharged through the combustion chamber, the amount of heat is stored in the heat storage part in front of the combustion chamber, and the tip working part is heated to a temperature suitable for softening dental wax through the exhaust gas chamber. The tip working unit facilitates the work.

Further, the main body grip section and the main body working section are
It can be easily attached and detached by fitting one body working part fixing stopper.

The leg member is not only safe because it stabilizes the main body when it is placed, but also prevents burns during work and also functions as a handle.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in order of configuration and operation with reference to the examples shown in the drawings.

FIG. 1 is an overall side view showing an embodiment of the present invention. First, a liquid gas storage unit 1 that stores a liquid gas that serves as a fuel and a gas amount adjustment unit 2 that adjusts the amount of liquid gas ejected from the liquid gas storage unit 1 are provided. The liquid gas storage part 2 can slide about 2 mm toward the tip working part, and can further rotate about 90 ° counterclockwise about the axis of the main body. Along with this operation, the throttle inside the gas amount adjusting unit opens and closes to adjust the gas amount.

The gas amount adjustment display unit 3 displays ON / OFF of gas ejection by sliding toward the tip working unit, and further has three levels of 1, 2, and 3 indicating the degree of gas momentum adjusted by rotation. It is marked.

A tubular burner 4 (FIG. 3) and a main body working unit 6 are arranged further in front of the gas amount adjustment display unit 3. Reference numeral 7 denotes a stopper for fixing the main body working unit, which fixes the main body working unit 6 to the cylindrical burner 4.

FIG. 2 is a longitudinal sectional view of the main body showing the mechanism of the burner. The gas ejected from the liquid gas reservoir 1 mixes with the oxygen taken in from the oxygen intake hole 30 through the nozzle 32, and goes from the flame port 33 to the front combustion chamber 17. Then, the combustion chamber 17 is filled with a gas that is mixed with oxygen properly, so that the cylindrical burner 4 is ignited by igniting the gas. Reference numeral 31 is a heat storage member provided on a side portion and a front portion of the combustion chamber 17, 21a is an exhaust gas chamber provided in front of the heat storage member 31, 21 is an exhaust hole provided in a wall of the exhaust gas chamber 21a, and 18 is a heat storage member. Exhaust gas chamber 2 in front
It is a tip working portion extending forward from 1a. Due to the combustion of the gas in the combustion chamber 17, the heat storage member 31 is heated, the tip working unit 18 that performs the work is heated via the exhaust gas chamber 21a, and the combustion gas is discharged from the exhaust hole 21.

FIG. 3 shows a state in which the main body working unit 6 is removed from the main body. In the figure, a member composed of the liquid gas storage unit 1, the gas amount adjusting unit 2, the gas amount adjusting display unit 3 and the tubular burner 4 is generically called a main body grip unit 5. Hereinafter, description will be given using the generic name as appropriate.

The cylindrical burner 4 is 5 mm toward the tip working portion.
A slide member 11 capable of sliding to some extent is provided, and a male screw portion 8 is formed on the slide member 11. Inside the slide member 11, as shown in FIG. 10, a base portion 41 having a smaller diameter than the slide member 11 is provided. The slide member 11 and the base portion 41 are the lower portion of the tubular burner 4. Further, a step 13 is provided in front of the slide member 11.
A spring 10 is arranged adjacent to the upper burner portion 12 via the. FIG. 4 is a cross-sectional view of the flame mouth portion 33 inside the burner upper portion 12.

5 to 7 are views showing the stopper 7 for fixing the main body working portion, respectively. 5 is a side view, FIG. 6 is a top view thereof, and FIG. 7 is a perspective view thereof. The main body working part fixing stopper 7 has a hollow cylindrical shape, and when the main body grip part 5 and the main body working part 6 are fixed to each other, it protrudes into the hollow inside 15 so as to match the step 13 part of the cylindrical burner. The locking portion 14 is provided. Further, inside thereof, a female screw portion 9 that meshes with a male screw portion 8 formed on the slide member 11 is formed.
Is formed.

FIG. 8 is an overall view showing an embodiment of the main body working unit 6. The main body working unit 6 is provided with an ignition hole 20 that is closed during normal use and opens at the time of ignition, an exhaust hole 21, and a tip working unit 18. Further, a collar 19 is provided on one end surface opposite to the tip working portion 18. FIG. 9 is a view of the main body working unit 6 as viewed from the flange 19 side, and as shown in the drawing, a net 22 made of ceramic is arranged inside. Then, it is roughly divided into a cover part 16 for covering a part of the cylindrical burner 4, a combustion chamber 17 part, and a tip working part 18 further.

When the main body grip portion 5 and the main body working portion 6 are fixed, the collar 19 provided on the main body working portion 6 matches the step 13 portion of the cylindrical burner 4 described above. And, the collar 19 is the step 13 and the locking portion 1 of the body fixing stopper 7.
4 and the female screw portion 9 inside the main body fixing stopper 7 and the male screw portion 8 formed on the slide member 11 are fitted to each other. The working unit fixing stopper 7 and the main body working unit 6 operate in conjunction with each other.

Regarding the operation, in order to make the above-mentioned ignition hole 20 appear, at the time of ignition, the slide member 11 combined with the main body working portion fixing stopper 7 is slid toward the tip working portion. FIG. 10 shows a comparison of the main bodies. The length of the spring 10 after sliding is reduced to the minimum, and the main body working unit fixing stopper 7, the cylindrical burner 4, and the main body working unit 6 are moved by the distance L toward the tip working unit. The distance L is about 5 mm. At this time, since the main body working part 6 is moving toward the tip working part, the ignition hole 20 provided in the main body working part 6 is provided.
Shifts from the tip of the cylindrical burner 4 toward the tip working portion,
As a result, it appears as a hole on the side of the combustion chamber 17.
Thus, the ignition hole 20 is connected to the flame port 3 of the cylindrical burner 4.
It also functions as a small window for ignition that guides the flame to the front part of 3, and as a hole for taking in oxygen during ignition.

When the slide member 11 and the main body working portion 6 are slid at the time of ignition, the oxygen intake hole 30 is partially closed, so that a thick combustible gas is ejected from the flame port 33,
It makes the ignition easier.

FIG. 11 shows a finger pad when the main body is used,
In addition, in other cases, it is a perspective view showing a leg member 23 which serves as a leg member of the main body. The leg member 23 is composed of a deformable leaf spring portion 24 and two knob portions 25 made of synthetic resin that apply a force to the leaf spring portion 24. The leaf spring portion 24 is formed by rolling steel having a certain kind of unevenness in a rectangle shown in FIG. 12 into a tubular shape. Each end is provided with a knob, and approximately 90 degrees are provided on the cylindrical side surface of the leaf spring.
It will be located with an interval of °. FIG. 13 is a diagram for explaining how the leaf spring portion 24 is deformed by applying a force to the knob portion 25.

FIG. 14 shows a cover ring member 26 attached to the inside of the leg member 23. This is a cylindrical aluminum cover without a top and bottom for heat resistance and stability. At the time of attachment, the cover ring member 26 is first attached to the main body, and the leg member 23 is attached from above by the leaf spring structure.

FIG. 15 is a view showing the cap 27.
Attaching the cap 27 is useful not only for protecting the tip working portion 18 but also for preventing the gas stopper from being opened carelessly and the main body working portion 6 from damaging other contact objects while being carried. It has a shape that completely covers from the tip of the main body working unit 6 to the gas amount adjustment display unit 3. In FIG. 16, the cap 2
The body which tightened 7 is shown. In terms of design, it is as easy as a ballpoint pen, and in fact, it has a handle 28 that can be attached by being inserted into a pocket, a bag or the like.

Next, an example of the shape of the main tip working portion is shown in FIG.
7 shows. (A) is a spoon shape with gentle irregularities on the entire elliptical surface, (b) is an angular spoon shape with some chamfering around the oval surface of the spoon shape,
(C) is a shape in which the tip of the round bar is curved, (d) is a shape in which the shape of the tip of the round bar in (c) is further thinned, and (e) is a flat and crushed shape. The shape is also the one presented in the above embodiment. (F) is curved and has a corner partly toward the tip, and the tip is sharply pointed, which is like a beak of a crane.

Each shape is composed of three parts, a high temperature part, a middle temperature part and a low temperature part, from the side of the cylindrical burner toward the tip of the working part. For example, the spoon shape in (a) mainly corresponds to the entire surface. All three parts are used for work,
In (f), fine work is performed by the tip part corresponding to the low temperature part.

Generally, all six types of shapes are used for producing dentures, and the spoon shapes (a) and (b) are particularly frequently used. And, in the case of prosthesis, mainly (c),
Four types of (d), (e), and (f) are used. (F)
Is a shape that is essential for fine work such as inlay formation.

Next, the operation of this embodiment having the above configuration will be described together with its application.

First, the machine shown in FIG. 1 is grasped in the vicinity of the liquid gas storage portion 1 with one hand, and the fire source such as a lighter or a match is held with the other hand. The gas amount adjusting section 3 of the main body grip section 5 is supported by the thumb and forefinger, and is slid toward the tip working section so as to eject gas. Further, the gas amount adjusting unit 3 is rotated to adjust the gas amount. Gas continues to be ejected in this state. Next, the body working unit fixing stopper 7 is supported by the thumb and forefinger in the same manner as described above, and is slid toward the tip working unit. Then, the main body working unit 6
The ignition hole 20 provided on the front side of the flame outlet 33 appears toward the front of the flame port 33. At this time, since the inside of the tip working portion is filled with gas, the ignition source is brought close to the ignition hole 20 to ignite the cylindrical burner 4.

In the cylindrical burner 4, combustion is performed at the time of ignition when air is supplied from the ignition hole 20, and the exhaust hole 21 becomes reddish as the heat is stored in the front heat storage member 31. Therefore, whether or not the main body working unit 6 is usable is confirmed by the change of the exhaust hole 21 portion to red. After confirming that the exhaust hole 21 has become sufficiently red and heated, the support 7 for the main body working unit fixing is released, and the elastic force of the spring 10 causes the main body working unit 6 to be fixed to the main body working unit. The stopper 7 is returned together and the ignition hole 20 is closed,
Return to the original position. After that, the liquid gas shifts to the normal combustion in which the liquid gas is mixed with oxygen supplied from the oxygen intake hole 30 and burned, and the tip working unit 18 of the main body working unit 6 performs the work.

The dental technique in which the present invention works effectively is, for example, when the denture mold is taken and the cutting tool is adjusted. When making dentures, first have the patient bite the softened wax and place it on the bite machine, which is a model of the human jaw.
I put in false teeth, but at this time the wax became hard and it was necessary to reheat it. Also, it is necessary to warm it up when chewing again.

In such a case, if the present invention is heated as described above and brought close to the wax, it can be easily heated. This saves you the trouble of bringing dental appliances to the fire source and heating them with an alcohol lamp or burner.

Further, as another example of the dental technique, there is a waxing operation after the dental caries are molded. In order to make a crown or the like, which is a filling of caries, the part eaten by insects is first scraped cleanly, and the patient is bitten by a mesh tray made of silicon or the like, and the mold is taken. Then, in order to form a dental caries plaster model with gypsum and form the shape of the prosthesis, the concave portion on the dental caries plaster model is waxed. After that, the wax prototype is embedded in the investment material, the molten metal is injected into the molding space formed by heating and elution of the wax prototype, and this is cooled to manufacture.

In the waxing for this purpose, the work can be performed more smoothly by bringing the machine in a heated state close to the lump of wax, taking an appropriate amount of wax and performing waxing at the tip working unit 18.

The working status will be specifically described. FIG.
Figure 2 shows how the work is done. The vicinity of the liquid gas storage portion 1 of the main body grip portion 5 is gripped, and wax is removed from the lump of wax while scooping at the tip working portion 18. Then, the wax is rolled by the tip working unit 18 to adjust the amount one by one, and the wax is produced while being dripped on the plaster model.

FIG. 19 shows an embodiment of the present invention shown in FIG.
(E) Tip working section 18 of main body working section 6 having tip shape
A partially enlarged view of FIG. According to the shape of the tip working portion which is one embodiment of the present invention, the wax at the portion a is about 900 °, but the taken wax is temporarily stored at the portion b (about 500 °).
When the wax is moved to the c portion while tilting the tip working portion 18 at any time, the final c portion becomes about 200 °,
It is possible to work at a temperature suitable for softening the wax. The part a constitutes a high temperature part, the part b a medium temperature part, and the c part a low temperature part. Further, the shape in the illustrated embodiment has a structural advantage that the work can be performed while the wax is stored in the portion b and the amount of the wax placed on the gypsum model is adjusted.

Next, the operation of replacing the main body working section 6 with the main body grip section 5 will be described. The state of the operation is shown in FIGS. 20 and 21.

First, the cylindrical burner 4 of the body grip portion 5
The cover 16 of the main body working unit 6 arbitrarily selected is fitted onto the portion so as to cover it. At this time, the upper portion 12 and the spring 10 of the cylindrical burner 4 are covered by the cover portion of the main body working portion 6. The slide member 11 having the male screw portion 8 is not covered by the cover portion 16, and the flange 19 formed at one end of the cover portion 16 is caught and stopped at the step 13 portion of the slide member 11 and the spring 10.

Next, the stopper 7 for fixing the main body working portion is fitted into the slide member 11 with the end portion formed in the hollow interior 15 where the engaging portion 14 is formed aligned with the tip working portion direction.
At this time, the male screw portion 8 formed on the slide member 11 and the female screw portion 9 formed in the main body working portion fixing stopper 7 are fitted and fixed.

After fitting the main body grip portion 5 and the main body working portion 6 in this manner, the burner is ignited and the tip working portion 18 is heated to perform the work as described above. Since the work is as described above, the description is omitted.

After the completion of one operation, when replacing the main body working section 6 having another tip working section shape, first, the main body working section fixing stopper 7 is rotated to release the screw fitting. Then, the stopper 7 for fixing the main body working portion and the main body working portion 6 are sequentially removed from the main body grip portion 5, and another main body working portion 6 is replaced as described above to complete the process.

As described above, there are mainly six types of instrument shapes used in the dental technique, and the main body grip portion 5 and the main body working portion 6 are replaceable, so that the tip working portion suitable for each work is provided. Can be selected at any time. Therefore, it suffices if there is substantially one main body grip portion 5, and after that, if each of the six types of main body working portions 6 having a respective tip working portion shape is carried, each work can be performed. However, in reality, after one work is completed, the main body working unit 6 is considerably hot, and it is difficult to immediately replace it by hand.
Therefore, about three main body grip parts 5 are always prepared, and the main body immediately after the work is cooled by placing it on a desk or the like and leaving it for a while, and when continuing the work, another main body already cooled may be desired. It is appropriate to proceed with the work while replacing the main body work unit 6.

Of course, it is also possible to devise a device such as providing a heat-resistant member at an arbitrary position of the main body working unit 6 so that the main body working unit 6 can be replaced immediately.

Next, the operation of attaching the leg member to the main body will be described. FIG. 22 is an overall view showing a state in which the leg members are attached to the main body. First, the cylindrical aluminum cover ring member 2
Insert 6 from the direction of the tip working portion to any place on the main body.
This place may be an arbitrary position desired by the operator, but it is desirable to install it in the vicinity of the gas amount adjustment display unit 3 so as not to disturb the movement of the gas amount adjustment unit 2 and the slide member 11.

Next, a force is applied to the knob portions 25, 25 of the leg member 23 with a finger (see FIG. 13), and the two knob portions 25, 2
When the angle formed by 5 is reduced, the steel of the leaf spring portion 24 is deformed accordingly, and the shape after the application of force becomes larger than the circle of the original shape. With this force still applied, it is fitted into the main body from the tip working portion direction like the above-mentioned covering member 26, and moved so as to overlap the covering member 26. After that, when the force applied to the knob portions 25, 25 is loosened and the finger is separated from the knob portion, the leg member 23 is fixed to the main body together with the cover ring member 26 by the elastic force of the leaf spring portion 24.

Although the present invention has been described above based on the illustrated embodiments, various other modifications are possible within the scope of the present invention.

[0061]

As described above, according to the present invention, when the dental technician carries the gas instrument for the dental technician, for example, when the dentist visits the dentist, the dentist treats the patient. A little work is possible during the examination. In other words, it is possible to carry out work such as repairing the wax shape of the denture without preparing the gas cylinder or preparing to burn the fire.

Further, as described above, when the softening of the wax is weakened by the cold, it is not necessary to bring the dental instrument closer to a gas burner or the like to reheat it, and there is no obstructive cord in the electric system, so that the working environment is reduced. Can be improved.

At present, a dental technician goes to a dentist and is requested to do the work, but until now, even a small amount of work had to bring the object back to his / her own work place and perform the work. It was However, the advantage of the present invention that it is cordless and easy to carry is
By eliminating this inconvenience, work efficiency and work environment are improved. That is, even a dentist can easily perform a simple work, which is very useful in this respect.

As another advantage, the main body grip portion 5 can be used in a state where it is completely separated from the main body working portion 6 (the state shown in FIG. 3) by making the main body working portion 6 replaceable. The cord can be used as a portable cordless gas burner by ejecting the gas as in the above-described operation method and directly igniting the gas ejected from the tip portion on the side where the main body working unit 6 is originally fitted. It is useful for use as a pure portable gas burner, for example, in the preparation of dentures, in the preparation of trial wax molds and in the smoothing finish.

Further, there are mainly six types of instrument shapes used in dental technicians, and the main body grip section and the main body working section can be freely replaced, so that the tip working section suitable for each work can be selected at any time. As a result, it is not necessary to carry around six main bodies, and it suffices if only one main body grip portion is provided.
After that, each work can be carried out by carrying 6 kinds of main body working parts each having a tip working part shape.

Further, the leg members have the effects of stabilizing the main body when placed and preventing burns to the worker during work.
Further, by making this leg member removable, if it is separated from the main body when it is stored, the overall size becomes compact and the convex portion of the leg member from the main body does not interfere with anything. It is also convenient when you carry it in your bag. Also,
There is an advantage that the removal can be adjusted at any time depending on the preference of the operator.

[Brief description of drawings]

FIG. 1 is an overall view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional view of a main body.

FIG. 3 is an overall view of a body grip portion.

FIG. 4 is a cross-sectional view of a flame port inside a cylindrical burner.

FIG. 5 is a side view of a stopper for fixing the main body working unit.

FIG. 6 is a top view of a stopper for fixing the main body working unit.

FIG. 7 is a perspective view of a stopper for fixing the main body working unit.

FIG. 8 is an overall view of a main body working unit.

FIG. 9 is a view of the main body working unit as viewed from its flange side.

FIG. 10 is a view showing a change when the main body working unit is slid at ignition.

FIG. 11 is a perspective view of a leg member.

FIG. 12 is a view showing an original steel shape of a leaf spring portion.

FIG. 13 is a view showing the deformation of the leaf spring portion of the leg member.

FIG. 14 is a view showing a covering member.

FIG. 15 is an overall view of a cap.

FIG. 16 is an overall view of a main body with a cap.

FIG. 17 is a diagram showing six types of tip working unit shapes.

FIG. 18 is a diagram showing an example of work.

FIG. 19 is a partially enlarged view of the tip working unit according to the embodiment.

FIG. 20 is a view showing a manner in which a body grip portion and a body working portion are fitted together.

FIG. 21 is a view showing a state in which a stopper for fixing the main body working unit is further fitted from FIG. 20.

FIG. 22 is a perspective view showing a main body to which leg members are attached.

[Explanation of symbols]

1 Liquid gas storage 2 Gas amount adjustment unit 3 Gas amount adjustment display 4 cylindrical burners 5 Body grip 6 Main body working unit 7 Main body working part fixing stopper 8 Male screw part 9 Female thread 10 springs 11 Slide member 12 Burner upper part 13 steps 14 Locking part 15 Inside hollow 16 Cover 17 Combustion chamber 18 Tip working section 19 Tsuba 20 Ignition hole 21 Exhaust hole 21a Exhaust gas chamber 22 Ceramic mesh 23 Leg member 24 Leaf spring 25 knob 26 Covering member 27 caps 28 Handle 29 caries plaster model 30 Oxygen uptake hole 31 heat storage member 32 nozzles 33 flame mouth 41 Base

Claims (10)

[Claims] 1. A gas instrument for dental technique for softening a wax for dental technique, comprising a liquid gas reservoir for storing a liquid gas serving as a fuel, and a liquid gas ejected from the liquid gas reservoir. A gas amount adjusting unit for adjusting the amount, a cylindrical burner that is a liquid gas combustion device, a combustion chamber provided adjacent to the cylindrical burner, and a dental technician that stores combustion heat in front of the combustion chamber. A gas instrument for a dental technician, characterized by comprising: a tip working part which is a direct working part of the. 2. The tip working portion, in its shape, includes a high temperature portion, a middle temperature portion in front of the high temperature portion, and a tip in front of the middle temperature portion from the tubular burner side toward the tip of the working portion. A low temperature part, and one of the high temperature part, the middle temperature part, and the low temperature part
A gas instrument for dental profession according to claim 1, characterized in that the part or parts obtain the desired temperature and structure for each dental technic work. 3. A body grip part is a member composed of the liquid gas storage part, the gas amount adjusting part, and the tubular burner arranged at a tip end thereof, and the tube is fitted to the body grip part. A member composed of a cover portion that covers at least a part of the cylindrical burner, the combustion chamber and the tip working portion is used as a main body working portion, and the main body grip portion and the main body working portion are attached and detached to two independent members. The gas instrument for dental technique according to claim 1 or 2, characterized in that. 4. The main body working section is arbitrarily selected from a plurality of kinds of main body working sections having different tip working section shapes, and is attached to the main body grip section in a replaceable manner. Item 3. A gas instrument for dental technique according to Item 3. 5. When the main body working part is fitted to the main body grip part, the tubular burner has a step between an upper part of the main body working part covered by the cover part and a step not covered by the cover part. And a lower portion having a large diameter through the upper portion, a collar that abuts against the step of the lower portion is provided at a lower end of the cover portion of the main body working portion that covers the upper portion, and has a large diameter. A stopper for fixing the main body working portion having a locking portion that covers the brim that abuts on the step is provided on the outside of the lower portion, and a female screwed to a male screw portion formed on the outer surface of the lower portion. A screw part is formed inside the main body working part fixing stopper, and the brim of the main body working part is fixed between the step of the lower portion and the locking part of the main body working part fixing stopper. The gas-type instrument for dental technique according to claim 3 or 4, characterized in that Rumento. 6. The lower portion of the tubular burner includes a base portion and a slide member located outside the base portion and having the male screw portion and the step, and the lower portion of the tubular burner comprises: A spring is mounted between the upper portion and the slide member of the lower portion, and a plurality of ignition holes that are closed on the side surface of the cover portion so as to overlap with the upper portion of the tubular burner. The main body working portion is fixed to the slide member by the collar and the main body working portion fixing stopper, and the ignition hole is formed by the cover portion when the slide member moves forward against the spring. The gas instrument for dental technician according to claim 5, wherein the gas instrument slides in a direction and opens in the combustion chamber in front of the cylindrical burner. 7. The gas instrument for dental technician according to claim 1, further comprising a leg member for supporting the main body, wherein the leg member is removable from the main body. . 8. The plate having a plate spring part for fixing the main body and the leg member, and a knob part arranged adjacent to the plate spring part for deforming the plate spring part. The gas instrument for dental technique according to claim 7, having a spring structure. 9. A spoon in which a plurality of types of body working portions, which are detachably attached to the body grip portion and have different tip working portion shapes, have the shape of the tip working portions which has gentle unevenness on the entire surface. The gas instrument for dental technique according to any one of claims 4 to 8, which has a plurality of types of shapes including at least a spoon shape represented by the shape. 10. The tip working part shape of a plurality of types of the body working parts which are detachably attached to the body grip part and have different tip working part shapes, is characterized in that a part of an elongated rod is curved or protruded, Alternatively, the gas instrument for dental technique according to any one of claims 4 to 9, having a plurality of types of shapes including at least a pointed shape produced by applying a deformation such as forging pressure.