JPH0432088Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a steam cleaning device for dental technology that is suitable for use in flowing wax processing during the production of dentures and cleaning processing during the production of metal-baked porcelain crowns. .

<Prior Art> The fabrication of dentures is generally carried out through the following process. First, a denture base model is formed by depositing wax on a plaster jaw model taken from the patient's alveolar ridge, and artificial teeth are arranged on top of it. Upper and lower denture models made of wax are tried on in the patient's mouth, and the occlusion, etc., is checked and corrected. Thereafter, the wax denture model is embedded in plaster in a divisible state between a pair of flasks. After the plaster has hardened, the pair of flasks are placed in hot water to soften the wax, then sectioned and the waxed portions are removed by washing with hot water. A mochi-like acrylic resin is filled into the cavity formed in the area where the wax has been washed away, and is polymerized and hardened to form a denture base that matches the denture model made of wax.

In addition, when producing a metal fired porcelain crown, the metal surface that is the porcelain fired surface is cut with carborundum points to create a new surface.

Conventionally, as this type of dental cleaning device, there are techniques disclosed in, for example, Japanese Patent Application Laid-Open No. 56-27244 and Japanese Utility Model Application No. 58-178389.

<Problems to be solved by the invention> In the above-mentioned former denture manufacturing process, the wax denture model is washed and removed after being embedded in plaster. I poured boiling water and went. In this method, since hot water is simply poured onto the wax, there are problems such as the wax cannot be poured quickly and it is difficult to remove wax stuck in narrow areas of the model.

In addition, in the production of the latter metal-fired porcelain crown, contaminants such as carborundum powder, metal shavings, and lipids from the technician's fingers adhere to the metal surface. Conventionally, such deposits have been washed by pouring boiling water at about 90° C. as in the above example. However, with such a cleaning method, it is difficult to remove deposits reliably and quickly.

In addition, the structure disclosed in the above-mentioned publication uses a tank that stores a predetermined amount of water, and uses the water from the tank by heating and evaporating it.
There is a limit to the amount of water that can be used, making it difficult to work continuously for long periods of time, and requiring water replenishment.

The present invention was developed to solve this problem by heating continuously supplied water to make it hot water, and then heating this hot water to generate steam, which is then jetted from a nozzle. The present invention provides a steam cleaning device for dental technology that can quickly and reliably wash away wax or deposits.

<Means for solving the problem> The steam cleaning device according to the present invention includes a water heater that heats water continuously supplied from a water pipe to obtain hot water that is continuously sent out, and the water heater A steam generator that continuously generates steam in response to the water supply by further heating and boiling hot water that is continuously delivered from the water vapor generator, and a nozzle that spouts the steam that is delivered from the steam generator. The water supplied from the water pipe is guided to the nozzle in a constant state of flow, and is ejected from the nozzle as steam, which is then sprayed onto the object to be cleaned, such as wax, to remove it.

〈Operation〉 Continuously supplied from the water pipe, approximately 90
The hot water heated to 100°C is further heated in a steam generator and boils, turning into steam at 100°C and being ejected from a nozzle. This amount of ejection corresponds to the amount of water supplied to the water heater. This ejected steam is blown onto wax that has been softened by immersing it in hot water in advance, or onto the metal surface that is the porcelain baking surface, to melt and remove the wax, or to wash away contaminants such as cutting dust and lipids. The steam is blown onto wax and other items to be cleaned under strong pressure, making cleaning more thorough and easily removing wax stuck in narrow areas and hard-to-clean lipids adhering to metal surfaces. be done.

<Example> In FIG. 1, 1 is a water heater, and a commercially available gas water heater can be used. 2 is a pipe through which tap water is supplied, and has a faucet 3 for opening and closing the pipe and adjusting the amount of water. Reference numeral 4 denotes a pipe for supplying combustion gas, which is opened and closed by a valve 5. 6 is a heating temperature adjustment knob, 7 is an ignition and gas adjustment knob, and 8 is a combustion confirmation window. 9 is a pipe through which hot water is sent, and 10 is a steam generator connected to this pipe 9 to further heat the hot water.
It generates water vapor at 100℃. A nozzle 11 is connected to the steam generator 10 via a flexible hose 12. 13 is a power switch,
14 is an electric cord, and 15 is a plug that is inserted into a commercial 100V power outlet. Figure 2 shows
A cross-sectional view of the steam generator 10 is shown, and 16 is a metal cylinder with spiral fins 17 formed around the periphery, and the spiral flow channel A is formed by the fins 17. 18 is a heater such as a ceramic heater housed in the cylindrical body 16, and 19 is a lead wire thereof. A pressure switch 20 has a diaphragm structure and is placed near the entrance of the flow channel A. It has a thin rubber layer 21, a protrusion 22, and a coil spring 23 that elastically biases the protrusion 22 downward in the figure. It is pushed up and turned on. Heater 18, power switch 13 and pressure switch 20
are connected in series between the power supplies by a lead wire 19. Reference numeral 24 denotes an extrapolation body formed around the fin 17 and made of a heat insulating material. In such a structure,
The approximately 90°C hot water sent from the water heater 1 to the pipe 9 is further heated and generates 100°C water vapor as it passes through the cylinder 16 heated by the heater 18 and the flow channel A of the fin 17. The high pressure is then delivered to the flexible hose 12. This water vapor passes through the flexible hose 12 and is ejected from the tip of the nozzle 11. Note that the nozzle 11 is made of a heat insulating resin.

In the steam generator 10, when there is no water flow, the pressure switch 20 is off, so even if the power switch 13 is turned on, the heater 18 does not perform heating operation. Pressure switch 20 therefore acts as a safety switch to prevent heater 18 from running dry.
Furthermore, if the power switch 13 is left off during running water, the hot water from the water heater 1 can be directly injected from the nozzle 11.

3 and 4 show another embodiment of the present invention, in which 25 is a steam generator, and a nozzle 26 is integrally fixed to the tip thereof. 27 is a flexible hose that connects the steam generator 25 and the water heater 1. The steam generator 25 has a grip part 28,
Moreover, the power switch 13 is attached to this grip portion 28 . The structures of the heater 18, the spiral fin 17, and the pressure switch 20 housed within the metal cylinder 16 are similar to those in the previous example. 14
is an electric cord, and 15 is a plug.

In this structure, hot water of about 90°C sent from the water heater 1 via the flexible hose 27 is
After turning on the pressure switch 20, the heater 1
Cylindrical body 16 and spiral fins 1 heated at 8
It passes through the flow channel A between 7 and is heated and boiled.
Steam of 100°C is generated and spouted from the tip of the nozzle 26. This ejected water vapor is blown onto the metal surface of the plaster jaw model to which wax or cutting dust has adhered, thereby cleaning and removing them. The amount of water vapor ejected from the tip of the nozzle 26 is adjusted by the amount of tap water supplied to the water heater 1. In other words, the amount of water is adjusted by opening the faucet 3. Figure 5 shows
Another embodiment of the present invention is shown in which a plurality of (eight in the illustrated example) metal heat dissipation fins 3 are mounted on a metal cylindrical body 29.
0, 30... are fixed parallel to the axial direction of the cylinder. 18 is a heater, and 24 is an extrapolation body made of a heat insulating material. The flow channel A has heat radiation fins 30,3
0..., and the hot water receives heat from the cylindrical body 29 and the radiation fins 30, 30... and boils.

FIG. 6 shows still another embodiment, in which a heater 18 is housed in a hole 32 at the center of a metal cylindrical body 31, and a plurality of water holes 33, 33, .
It is formed along the central axis. Even with this structure, hot water can be efficiently heated to generate steam.

<Effects of the invention> According to the invention, when cleaning wax from a wax denture model or cleaning contaminants such as metal cutting powder adhering to the metal surface that is the porcelain baking surface, it is possible to use the conventional hot water method. Instead, water vapor can be ejected from a nozzle and sprayed onto the object to be cleaned, making it possible to perform the cleaning process more quickly, and to remove wax or metal surfaces that are stuck in narrow areas on the model. It is possible to reliably and easily remove lipids etc. that have adhered to the surface.

According to the present invention, since the heater is housed in the center of the device and an outflow path is formed between it and the outer insert, the temperature of the outer insert can rise up to 100 degrees Celsius at most.
There is no risk that the extrapolation body will become abnormally heated and cause a fire.

Furthermore, according to the present invention, the water continuously supplied from the water pipe is first heated to boiling water by the water heater,
Next, this hot water is continuously supplied to a steam generator, which is a second-stage heater, where it is heated to boiling point and is jetted out as steam from a nozzle. Therefore, the amount of steam emitted can be adjusted by adjusting the opening of the faucet that supplies tap water, and the supply can be performed continuously, so that, like water stored in a tank, water is not consumed during use. There is no problem of being exhausted.

Furthermore, according to the present invention, water is heated continuously in the first-stage water heater and the second-stage steam generator, so that complete heating can be achieved.
Water vapor can be ejected reliably.

[Brief explanation of drawings]

FIG. 1 is a front view of a steam cleaning device for dental technology according to an embodiment of the present invention, FIG. 2 is a sectional view of a steam generator in the same embodiment, and FIG. 3 is a diagram of another embodiment of the device of the present invention. A front view, FIG. 4 is a sectional view of the steam generator in the same example, FIG. 5 is a sectional view of another embodiment of the device, and FIG. 6 is a sectional view of still another embodiment. . 1... Water heater, 10, 25... Steam generator, 11, 26... Nozzle, 12, 27... Flexible hose, 13... Power switch, 16... Cylindrical body, 17... Spiral shape Fin, 18... Heater, 2
0...Pressure switch, 24...Extrapolation body, 28...
Gripping part.

Claims (1)

[Claims for Utility Model Registration] (1) A water heater that heats water continuously supplied from a water pipe to obtain hot water that is continuously delivered, and hot water that is continuously delivered from the water heater. A steam generator that further heats and boils water to continuously generate steam in response to the supply of water, and a nozzle that spouts the steam sent from the steam generator, and is supplied from the water pipe. A steam cleaning device for dental technology, characterized in that water is introduced into the nozzle in a constant state of flow, is ejected as steam from the nozzle, and is sprayed onto an object to be cleaned, such as wax, to remove it. (2) The steam cleaning device for dental technology according to claim 1, wherein the nozzle is connected to the steam generator via a flexible hose. (3) The above-mentioned water heater and steam generator are connected by a flexible hose, and the nozzle is fixed to the steam generator, as set forth in claim 1 of the utility model registration claim. Steam cleaning device for dental technology. (4) The dental office according to claim 1 of the utility model registration claim, characterized in that the steam generating device is provided with a heater at the center and a flow channel formed in a spiral shape around the heater. Steam cleaning equipment for technicians. (5) The steam generating device is equipped with a heater and a flow channel heated by the heater, and is equipped with a pressure switch near the entrance of the flow channel that operates when water flows, and when the pressure switch is operated, the heater A steam cleaning device for dental technology according to claim 1, characterized in that a power source is supplied to the device. (6) Between the pressure switch above and the power supply, turn on the power.
A steam cleaning device for dental technology according to claim 5, characterized in that off switches are connected in series.