JPH0740848Y2 - Platinum catalyst for oxidation reaction of gas lighter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a component part of a gas lighter, more specifically, a platinum catalyst for an oxidation reaction which is incorporated in an ignition part of a gas lighter to promote combustion of gas.

(Prior art) Placing a platinum catalyst for oxidation reaction near the gas nozzle at the ignition part of a gas lighter has a remarkable effect on reliable ignition and prevention of extinction due to wind, so it is mainly used for high-end products and outdoor gas lighters. It has been adopted frequently. FIG. 6 is a plan view of an example of a conventional platinum catalyst for oxidation reaction, which is a frame 6 made of heat-resistant ceramics.
A thin wire 7 made of platinum or a platinum alloy is spirally wound around the thin wire 1, and both ends of the thin wire 1 are welded to the frame body 6.

(Problems to be solved) However, the ignition part of the gas lighter is small, and accordingly, the frame body 6 has to have a diameter of about several millimeters, which is very small. Therefore, the frame body 6 is made of platinum or a platinum alloy. The assembling of the thin wire 7 was a very fine work, and there was a big problem in workability, it was difficult to mass-produce, and the cost was increased. Further, since the thin wire 7 is exposed to extremely high temperature during use, it is unavoidable that the thin wire 7 is gradually extended, and it may be displaced, loosened or removed from a predetermined position of the frame body 6, and thus the durability is improved. Was inferior in.

The present invention is intended to solve the above-mentioned problems associated with a platinum catalyst for an oxidation reaction of a gas lighter, and is a novel platinum for an oxidation reaction which can be easily produced, is suitable for mass production, and has excellent durability. It is intended to provide a catalyst.

(Means for Solving the Problems) The present invention is to punch a catalyst body in the shape of a grate, in which a large number of substantially parallel lattice bodies are integrally provided between a pair of frame bodies, from a thin plate made of platinum or a platinum alloy. In order to solve the above-mentioned problems, the above-mentioned problem is solved by forming the platinum catalyst for the oxidation reaction of the gas lighter by alternately bending the lattice bodies in the opposite directions in an arc shape.

(Function) It is positioned above the gas nozzle of the ignition part of the gas lighter, ignites the gas ejected from the gas nozzle,
When the flame rises from the gas nozzle, the platinum catalyst for oxidation reaction is placed in the flame and instantly becomes incandescent to accelerate the combustion of gas.

After that, even if the flame is once extinguished due to wind or the like, this platinum catalyst for oxidation reaction has become incandescent, so when the raw gas touches it, it reignites immediately and the flame recovers,
The gas continues to burn.

This platinum catalyst for oxidation reaction is a thin plate made of platinum or a platinum alloy integrally formed by punching.Since no thin wire of platinum or platinum alloy is used, extension occurs as in the case of a thin wire, It cannot be displaced or removed from the body and can withstand long-term use.
In addition, since it is integrally formed by punching, it is easy to manufacture and it is possible to mass-produce products of the same quality at low cost.

(Embodiment) FIG. 1 is a plan view of an embodiment of a platinum catalyst for oxidation reaction of a gas lighter according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a perspective view thereof, and FIG. 4 is a holding cylinder. FIG. 5 is a plan view showing a state of being assembled to, and FIG. 5 is a perspective view showing a state of use.

In the figure, reference numeral 1 denotes a lattice body positioned substantially parallel to each other, and a pair of frame bodies 2 are disposed at both ends of the lattice body 1 to form a grate-shaped catalyst body 3.

The catalyst body 3 is formed by punching a thin plate made of platinum or a platinum alloy. In addition,
The thin plate made of platinum or platinum alloy has a thickness of about 0.15 mm to 0.2 mm. And
As shown in FIGS. 2 and 3, the lattice bodies are alternately curved in an up and down direction in an arcuate shape. That is, this platinum catalyst for oxidation reaction has a bulge. The platinum catalyst for oxidation reaction is mounted in a cylindrical holding cylinder 4 as shown in FIGS. 4 and 5, and is placed above the gas nozzle 5 so as to be located in the flame 6 rising from the gas nozzle 5. It is fixed and promotes oxidation reaction. At this time, since the frame body 2 is also made of platinum or a platinum alloy, this portion also performs the same catalytic action as the lattice body 1.

(Effect of the Invention) The platinum catalyst for the oxidation reaction of the gas lighter according to the present invention has the above-mentioned structure, and is a thin plate of platinum or a platinum alloy integrally formed by punching and has the same quality. It has the effect that it can be mass-produced at low cost. Moreover, the platinum scraps after punching can be dissolved and reused, and expensive and precious platinum is not wasted. In addition, unlike the conventional one, it is not necessary to wind platinum fine wires, and there is no possibility that the fine wires will be displaced, loosened or displaced from the frame due to the extension of the fine wires. have.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of a platinum catalyst for an oxidation reaction of a gas lighter according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a perspective view thereof, and FIG. 4 is a state attached to a holding cylinder. And FIG. 5 is a perspective view of the usage state. FIG. 6 is a plan view of the conventional example. 1 ... Lattice body, 2 ... Frame body, 3 ... Catalyst body, 4 ... Holding cylinder, 5
… Gas nozzle, 6… Flame.

Claims (1)

[Scope of utility model registration request] 1. A grate-shaped catalyst body integrally formed with a number of substantially parallel lattice bodies between a pair of frame bodies is formed by punching from a thin plate made of platinum or a platinum alloy to form the lattice body. A platinum catalyst for the oxidation reaction of a gas lighter, which is characterized by alternately curving in a bow shape in opposite directions.