JPH0531403Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a structure for attaching a combustion promoting material that is attached to the mouthpiece of a lighter and promotes low-temperature combustion of fuel gas.

(Prior Art) Some lighters include a combustion promoter made of a heat-resistant material that promotes combustion of fuel gas. This type of combustion promoting material is provided at the crater and has an ignition promoting effect so that ignition is performed smoothly.

Conventional combustion promoting materials include those constructed by attaching a catalyst to a ceramic such as alumina having a large surface area, such as a honeycomb shape. Additionally, there are some that use platinum wire as a combustion accelerator.

(Problems that the device aims to solve) However, conventional ceramic combustion promoters are large in volume, and when they are attached to small devices such as gas lighters, their heat capacity is too large, so it takes a long time to glow red, and the area near the flame becomes too hot, which is a practical problem. If they are made thin to solve this problem, they become more prone to breakage, and the utmost care must be taken when setting them in the gas lighter, and if they are made thin, they may peel off due to thermal shock and mechanical shock caused by turning the switch on and off when igniting.

In addition, combustion accelerators made of ceramic can be molded,
Because it requires cutting equipment and is time-consuming to manufacture,
There is a problem of high cost.

In addition, if a platinum wire is simply used, a sufficient surface area cannot be obtained, so when the fire is extinguished by wind, the catalytic action of the platinum wire, which is a combustion promoter, is insufficient, and the piezoelectric element is reactivated. There is a problem in that the ignition operation must be carried out using a method such as the following.

In order to solve these problems, the inventors of the present invention have developed a combustion promoting material in which a catalyst wire such as a platinum wire is wound around a heat-resistant metal material. The present invention aims to provide an attachment structure that facilitates attachment of such a combustion promoting material to a crater.

(Means for Solving the Problems) In order to achieve the above object, the present invention divides the ring attached to the lighter's nozzle into two rings, provides a slit in one ring, and creates a wire for combustion promoting catalyst. The end of the heat-resistant metal material with the attached ring is inserted into the slit, the other ring is fitted onto the ring, and the heat-resistant metal material is sandwiched and fixed between both rings.

The above object can also be achieved by a structure in which the end of the heat-resistant metal material to which the combustion-promoting catalyst wire is attached is inserted into a slit in a ring, and the ring is pressed in a direction that crushes the slit to fix the heat-resistant metal material. .

Further, a slit is provided in a ring attached to the mouthpiece of the lighter, the end of the heat-resistant metal material to which the combustion promoting catalyst wire is attached is inserted into the slit, and the heat-resistant metal material is inserted into the ring with the bent piece provided at the entrance of the slit. The above object can also be achieved by a fixed structure.

In addition, in addition to the heat-resistant metal material mentioned above, a combustion promoting catalyst wire may also be inserted and fixed in each of the slits, and a structure in which only the combustion promoting catalyst wire is used and fixed in the slit is also adopted. can.

(Example) The details of the present invention will be explained below with reference to the drawings. 1st
Figures 3 to 3 show an embodiment of the present invention in which two rings are used to attach a combustion promoting catalyst wire 16 (hereinafter referred to as catalyst wire). FIG. 3 shows an example of the mounting portion and structure of the rings 1 and 2 for mounting the catalyst wire 16, and the rings 1 and 2 are
It is attached by fitting into the nozzle 5 at the tip of the cylindrical body 4 connected to the cylinder 3 of the lighter. The cylindrical body 4 is provided with an air intake hole 7, and external air is sucked in through the hole 7 by the gas ejected at high speed through the nozzle throat portion 6 and mixed in the mixing chamber 8, forming an air-fuel mixture blowout flow. The structure is such that the flame passes through the passage 9 and blows out from the crater 5.

As shown in FIGS. 1 and 2, one ring 1 has a small diameter part 11, a large diameter part 12, and a flat part 13 between the two. A slit 14 is provided one by one. The other ring 2 has an inner diameter that fits around the outer periphery of the small diameter portion 11, and a catalyst is provided on the side on the ring 1 side over a width corresponding to the portion where the three slits 14 are provided. A notch 15 is provided for sandwiching the wire rod 16 and the heat-resistant metal material 17.

The catalyst wire 16 is wound around and attached to a heat-resistant metal material 17, and the heat-resistant metal material 17 is assembled into a substantially rectangular or oval shape.

Catalyst wire rod 16 combined in this way
and the end of the heat-resistant metal material 17 is fitted into the slit 14 provided in one ring 1, and the ring 2 is inserted into the small diameter part 11 of the ring 1 so that the notch 15 of the other ring 2 corresponds to the part where the slit 14 is formed. By fitting, the catalyst wire 16 and the heat-resistant metal material 1
7 is sandwiched between rings 1 and 2 and fixed. The rings 1 and 2 to which the catalyst wire 16 and the heat-resistant metal material 17 are attached in this way are attached to the crater 5 by fitting, as shown in FIG.

In this embodiment, one of the parts 17a of the heat-resistant metal material 17 around which the catalyst wire 16 is wound is formed in a zigzag shape, and the catalyst wire 16 is hung in the groove of the zigzag part 17a. By doing so, the catalyst wire 16 is wound around the heat-resistant metal material 17 at a constant pitch.

The catalyst wire 16 is typically made of platinum or a platinum-based alloy (platinum-iridium, platinum-rhodium, etc.), or a zirconia particle dispersion-strengthened material thereof, and has a circular cross-sectional shape. If the diameter is preferably 0.1mm to 0.25mm,
The winding pitch is 1 mm or less. For example, nichrome wire, Kanthal wire, or other heat-resistant alloy wire is used as the heat-resistant metal material 17, and preferably the diameter
It is 0.1mm to 0.4mm. Note that other catalyst wires or heat-resistant metal materials may be used.

If such a catalyst wire 16 is attached to the crater 5, when the fuel gas is ignited by the ignition device, low-temperature combustion will be promoted, and the temperature of the catalyst wire 16 will increase due to combustion, and the wind will cause Even if the fire goes out, it is re-ignited by the heat held in the catalyst wire 16 and the catalytic action, making it easy to use outdoors in strong winds. In addition, conventional combustion accelerators using ceramics have a certain degree of slenderness, so they must be thicker than a certain level and inevitably have a large heat capacity. By using it as the wire 16 and selecting the wire diameter and coil pitch as described above, the heat capacity can be appropriately set. Furthermore, compared to ceramics, metal wires are less likely to be damaged by thermal shocks and mechanical shocks caused by switching on and off during ignition. In addition, it does not require expensive molding equipment or cutting equipment such as combustion accelerators made of ceramic, and it does not take much time to manufacture, and furthermore, it is easy to set in the nozzle 5, so it can be manufactured at a relatively low cost.

By assembling the catalyst wire 16 to the heat-resistant metal material 17, the above-mentioned benefits are brought about; however, in the present invention, the catalyst wire 16 and the heat-resistant metal material 17 are attached to the nozzle 5 in a structure in which the ring 1 is attached. Since the catalyst wire 16 and the heat-resistant metal material 17 are fitted into the provided slit 11 and held between the other ring 2, the catalyst wire 1
6 and the heat-resistant metal material 17 can be fixed between the rings 1 and 2 without using brazing or the like, and there is no need to braze the catalyst wire material 16 and the heat-resistant metal material 17 to the ring 1, making manufacturing easy. In addition, there is no fear that the brazing metal, which melts at low temperatures, will melt due to heat during use and the catalyst wire 16 and the heat-resistant metal material 17 will come off the ring.

In FIG. 4, a slit 21 is provided in one ring 20, and the ends of the catalyst wire 16 and the heat-resistant metal material 17 are fitted into the slit 21, so as to match the arc shape of the ring 20, as shown in FIG. Pressing surface 22
The catalyst wire 16 and the heat-resistant metal material 17 are fixed by abutting the pressing bodies 22 having a diameter of 1 from both sides and pressing the slit 21 so as to crush it.

According to this structure, only one ring is required, and the catalyst wire 16 and the heat-resistant metal material 17 are fixed by pressing with the pressing body 22, so that attachment of these wires becomes easier.

The example shown in FIG. 6 is a modification of the one shown in FIG. Then, as shown in FIG. 7, it is cut with a circular cutter 23 having an inner diameter slightly larger than the outer diameter of the ring 20. According to this structure, the catalyst wire 16 etc. do not protrude from the ring 20. , ring 20 in crater 5
can be tightly fitted.

In FIG. 8, a slit 25 is provided in a ring 24 that is attached to the nozzle of a lighter, and a rising piece is placed at the entrance of the slit 25 as shown by a two-dot chain line, and a catalyst wire 16 and a heat-resistant metal material 17 are provided.
The end portions of the catalyst wire 16 and the heat-resistant metal material 17 are inserted into the slit 24, and the rising piece is pressed by the pressing member 27 as shown by the solid line to form the bent piece 26. It is fixed.

With this structure, the catalyst wire 16 and the heat-resistant metal material 17 can be easily fixed to the ring 24, and the seventh
As shown in the figure, by cutting the ends of the catalyst wire 16 and the heat-resistant metal material 17, the crater 5
It can also be easily installed by fitting into the

In each of the above embodiments, the catalyst wire 16 and the heat-resistant metal material 17 are fixed to the ring. However, if the catalyst wire 16 is fixed by winding around the heat-resistant metal material 17, etc. There is no need to fix it. Alternatively, a structure may be adopted in which both the catalyst wire 16 and the heat-resistant metal material 17 are fitted into one slit and fixed. Further, the heat-resistant metal material 17 can be manufactured not only by wire processing but also by punching, etching, or the like. Furthermore, as shown in FIG. 9, which is a modification of FIG. 6, a structure in which only the catalyst wire 16 is fitted into the slit 21 can also be implemented. The invention is also applicable to the embodiment shown in the drawings.

(Effect of the invention) The structure of claim 1 is achieved by fitting a heat-resistant metal material into a slit provided in one of two rings, and sandwiching the heat-resistant metal material between the two rings that are fitted together. Since the catalyst wire is fixed to the ring via a heat-resistant metal material, there is no need to braze these to the ring, so manufacturing is easy, and the structure is such that the heat-resistant metal material is mechanically fixed. Therefore, there is no risk that the brazing metal, which melts at low temperatures, will melt due to the heat during use and the catalyst wire or heat-resistant metal material will come off the ring.

Moreover, according to the structures of claims 2 and 3, further:
The number of rings can be reduced, and the heat-resistant metal material can be securely and firmly fixed to the rings.

Moreover, according to the structure of claim 4, in each of the above structures, the catalyst wire is also fixed in the slit, so that the catalyst wire can be fixed more reliably and firmly.

Further, in the structure of claim 5, since the catalyst wire must have strength, the thickness of the catalyst wire must be increased, but there is an advantage that the structure is simplified.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the mounting structure for a gas combustion accelerator for a lighter according to the present invention using two rings, and FIG. 2 is an exploded perspective view of the embodiment.
FIG. 3 is a vertical cross-sectional view showing an example of the structure of the mouthpiece or the vicinity thereof of a lighter to which the structure of the present invention is applied; FIG. 4 is a perspective view showing an example of the present invention using a ring pressing structure; 5 is a plan view showing an outline of the pressing operation to realize the structure shown in FIG. 4, FIG. 6 is a perspective view showing a modification of FIG. 4, and FIG. 7 is a plan view showing the cutting structure shown in FIG. 6. Fig. 8 is a front view showing an embodiment of the wire fixing structure by pressing and deforming the rising piece provided near the slit, and Fig. 9 shows an embodiment of the structure according to the present invention in which the catalyst wire is directly attached to the ring. FIG.

Claims (1)

[Claims for Utility Model Registration] 1. A ring to be attached to the nozzle of a lighter is divided into two rings, one of the rings is provided with a slit, and the end of a heat-resistant metal material to which a combustion promoting catalyst wire is attached is inserted into the slit. The structure for attaching a gas combustion accelerator for a lighter includes placing the heat-resistant metal material between the two rings and fixing the heat-resistant metal material between the two rings. 2. Provide a slit in the ring that is attached to the lighter's mouthpiece, insert the end of the heat-resistant metal material with the combustion-promoting catalyst wire attached into the slit, and press the ring in a direction that crushes the slit to fix the heat-resistant metal material. Installation structure for gas combustion accelerator for lighters. 3. A slit is provided in the ring that is attached to the mouthpiece of the lighter, the end of the heat-resistant metal material to which the combustion promoting catalyst wire is attached is inserted into the slit, and the heat-resistant metal material is fixed with a bent piece provided at the entrance of the slit. Installation structure for gas combustion accelerator for lighters. 4. The mounting structure for a gas combustion promoting material for a lighter according to any one of claims 1 to 3, wherein a wire for a combustion promoting catalyst is inserted into a slit provided in the ring and fixed therein. 5. The gas combustion promoting material for a lighter according to any one of claims 1 to 3, wherein a combustion promoting catalyst wire is inserted and fixed in the slit provided in the ring instead of the heat-resistant metal material to which the combustion promoting catalyst wire is attached. installation structure.