JPS602502B2 - igniter electric igniter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric igniter of an igniter such as a gunpowder gas generator used in a rocket or an automobile air cushion.

For example, in order to ignite the igniter B of a rocket's igniter A (see Figure 2), a lightning bridge is constructed between the pins connected to the power source, and the igniter is ignited by energizing the bridge. In the igniter, the distance between the pins,
Although the perpendicularity between the bridge and pins, the diameter of the electric bridge, the material, etc. are manufactured under sufficient control, the secondary supports are the first priority.
As shown in the figure, since the cross-sectional shape of pin a is circular, electric bridge b
When joining the end of the bridge and the pin a by welding W, the welding material permeates between the electric bridge and the pin due to capillary action, so the actual length L of the bridge tends to be uneven for each product. Variations in the electric resistance, that is, the amount of heat generated, are likely to occur, which may impede simultaneous firing, especially when a plurality of igniters are used in parallel.

In addition, in order to reduce the penetration of the welding material as much as possible, welding W should be performed as far as possible from the contact point between the bridge and the pin, as shown in the opening in Figure 1. The turtle bridge may bend as shown in c, which is also the actual length L.
This causes variations in the number of items. The present invention has been developed in view of the above, and its purpose is to accurately reproduce the actual length of the labial eaves groove and to equalize the time required for ignition. Corners are formed in the bottle, and a flea bridge is constructed between the corners.

The present invention will be explained based on the embodiment shown in FIG.
1 is a fire starter, 2 is a base plug made of epoxy resin, etc., and 3 is a shield on the base plug 2, held by a jig or the like so as to maintain parallelism with each other, and while regulating the direction of the edges described later. For example, the electric copper pin 5 in the shape of a triangular prism with a side length of 0.5 is provided by Takashi Fizen, and the electrical bridge 6 is made of an ultra-fine wire 4 made of tungsten, platinum, etc., with an outer diameter of 0.04, attached to the pin 3. The pin is held perpendicularly to the pin by means such as a pick-up tool, and its both ends are welded to the ridge of the triangular prism near the tip of the pin by means such as welding, thereby constructing the pin between the pins 3.

The above-mentioned twilling is preferably performed outside the portion that will become the exposed bridge 5. Reference numeral 6 denotes an igniter, and 7 denotes a case made of, for example, a thin metal plate, which houses the electric bridge 5 and the igniter 6 together, and the base plug 2 is hermetically sealed with an adhesive.

A leg wire 8 for connecting to a power source (not shown) is connected to the portion of the pin protruding from the base plug 2. The illustrated igniter 6 has a priming charge 6' attached to the tip of the pin and the box bridge, and a priming charge 6' provided to surround these, and a transfer charge 6'' filled in the case surrounding the priming charge. It includes.

In the present invention having the above configuration, the end of the exposed bridge 5 is welded to the ridge 9 of the triangular prism as shown in FIG. L can be reproduced in a constant manner.

FIG. 4 is an enlarged view of a joint in another embodiment, in which the tip of a flat pin 3 is cut diagonally to form a cutting edge 10 (corner), similar to the case in FIG. 3. In addition to determining the position of the joint c, it is easy to adjust the gap between the cutting edges of both pins, so there is no need for great accuracy in installing the shield on the base plug 2.

Note that the cross-sectional shape of the pin is not limited to the above-mentioned embodiments; for example, it may be a cylindrical pin with a diamond-shaped tip, or a corner formed on the end face of the pin.

Furthermore, in any of the embodiments, the corners do not necessarily have to be sharp; for example, even if some flat parts are formed as shown in FIG. Because almost no leaching occurs, the intended purpose can be fulfilled. In the ignitary electric igniter related to the configuration described in detail above, the length L of the kasumi bridge is accurately specified, so by managing the thickness of the electric bridge as before, the amount of heat generated by the kasumi bridge can be reduced. This results in a special effect of improving the simultaneousness and the like.

[Brief Description of the Drawings] Figure 1 A is an explanatory diagram of the connection between the pin of the electric igniter of the conventionally formed igniter and the lightning bridge, and Figure 2 is the electric igniter h of the igniter according to the embodiment of the present invention. Figure 3 is an explanatory diagram of the attachment of the pin and Tomibachi in the mm-m arrow view of Figure 2, and Figures 4 and 5 are joints c of different embodiments. FIG. a...Pin, b...Electrical bridge, L...Length of energizing path of deposit, W...Welding, c...Joint part, 1...Electric igniter, 2... ...Base plug, 3...Pin, 4...Extra-fine wire, 5...Electric bridge, 6...Ignition powder, 8...Legs,
9...Ridge line, 10...Blade edge. 1 Figure O 3 Figure O 4 Figure S Figure 5 Division (1) Correction of Patent Publication (Published on June 12, 1986) Patent Publication 60- issued on January 22, 1985 63 (5(1)-2 [168]), Patent Application Publication No. 1982-2502, has an incorrect application number, so it will be corrected by issuing a separate publication. Please note that submissions of written opinions will be accepted for two months after the issuance of this revised gazette even after the opposition period has passed. The public notice date is January 22, 1985. Therefore, the date on which the right of provisional protection arises and the starting date for the duration of the right are the first publication date in the official gazette.
lnt. C.I. 4 Identification symbol Internal office reference number Fo
2K 9/95 7407-3G Showaku-Wataru 02 ■Claim 1 A turtle bridge is constructed between pins connected to a power source, and the ignition powder is ignited by energizing the bridge. An electric igniter for an igniter, characterized in that the pin is formed with a corner, and an Akebono bridge is constructed between the corners. 2. The igniter electric igniter according to claim 1, wherein the corner portion is a ridge of the triangular shape of a pin having at least a portion shaped like a triangular prism. 3. The igniter electric igniter according to claim 1, wherein the corner portion is a cutting edge of a flat pin with a blade formed therein. DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric igniter for an igniter such as a gunpowder gas generator used in a rocket or an automobile air cushion. For example, in order to ignite the igniter B of a rocket's igniter A (see Figure 2), a lightning bridge is constructed between the pins connected to the power source, and the igniter is ignited by energizing the bridge. In the igniter, the distance between the pins,
Although the perpendicularity between the box bridge and the bottle, as well as the diameter and material of the electric pin are carefully controlled, conventionally the cross-sectional shape of the pin a was circular as shown in Figure 1, so the electric When joining the end of bridge b and pin a by welding W, the welding material permeates between the fin bridge and the pin due to capillary action, so the actual length L of the exposed bridge tends to be uneven for each product. The electrical resistance, that is, the amount of heat generated, tends to vary;
Therefore, especially when a plurality of igniters are used in parallel, it becomes a cause of inhibiting simultaneous firing. In addition, in order to reduce the penetration of the welding material as much as possible, welding W should be performed as far as possible from the contact point between the tora bridge and the pin, as shown in the opening in Figure 1. The exposed bridge may bend as shown in c, which is also the actual length L.
This causes variations in the number of items. The present invention has been made in view of these points, and its purpose is to accurately reproduce the actual length of the Kamebachi Sea and to equalize the time required for it to ignite. The pin has corner portions, and a bridge is constructed between the corner portions. The present invention will be explained based on the embodiment shown in FIG.
2 is an igniter, 2 is a base plug made of epoxy resin, etc., and 3 is a gutter attached to the base plug 2 while holding it with a jig or the like to maintain parallelism and regulating the direction of the ridge, which will be described later. For example, a triangular prism-shaped electric steel pin 5 with a side length of 0.5 is an exposed bridge, and the exposed bridge 5 is made of an ultrafine wire 4 made of tungsten, platinum, etc. with an outer diameter of 0.04 mm, and is perpendicular to the bottle 3. It is constructed by holding the pins with a jig or other means such as a jig and welding both ends of the pins to the ridges of the triangular prisms near the tips of the pins by means of welding or the like. The welding is preferably performed outside the portion that will become the box bridge 5. Reference numeral 6 denotes an igniter, and 7 denotes a case made of, for example, a thin metal plate, in which the electric machine 5 and the igniter 6 are housed, and the base plug 2 is hermetically sealed with an adhesive. A leg wire 8 for connecting to a power source (not shown) is connected to the portion of the pin protruding from the base plug 2. The igniter 6 illustrated includes a priming charge 6' attached to and surrounding the tip of the pin and the bridge, and a transfer charge 6r filled in the case surrounding the priming charge. It is something that In the present invention having the above structure, as shown in FIG. 3, the weave of the crab bridge 5 is welded to the ridge 9 of the triangular prism, so there is no narrow gap through which the welding material can penetrate, so the crab bridge is made separately for each product. The length L can be reproduced at a constant value. FIG. 4 is an enlarged view of a joint in another embodiment, in which the tip of a flat pin 3 is cut diagonally to form a cutting edge 10 (corner), similar to the case in FIG. 3. In addition to determining the position of the joint c, the gap between the cutting edges of both bottles can be easily adjusted, so that there is no need for great precision in cutting the base plug 2. 'The cross-sectional shape of the pin is not limited to the above-mentioned embodiment; for example, the tip of a cylindrical pin may be rhombic, or a corner may be formed on the end face of the pin. Furthermore, in any of the embodiments, the corners do not necessarily have to be sharp; for example, even if some flat parts are formed as shown in FIG. 5, the welding material will not reach the fin bridge 5. Since almost no leaching occurs, the intended purpose can be achieved. In the igniter electric igniter related to the configuration described in detail above, the length L of the turtle bridge is accurately specified, so the calorific value of the turtle bridge can be determined by adjusting the thickness of the bridge as usual. This results in a special effect of improving the simultaneousness and the like. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A, the mouth is an explanatory diagram of the connection part between the pin and fin bridge of the electric igniter of the igniter in the formation of the secondary holder, and Fig. 2 is the electric type of the igniter according to the embodiment of the present invention. An explanatory cross-sectional view of the igniter, Fig. 3 is an explanatory view of the attachment of the pin and fin bridge in the cross-sectional view of Fig. 2, and Figs. 4 and 5 are enlargements of the joint c of different embodiments. It is an explanatory diagram. a...Pin, b...Takashi Kamemae, L...Length of electric bridge energization, W...Welding, c...Joint part, 1...Electric igniter, 2...・Base stopper, 3... Pin, 4... Ultra-fine wire, 5... Sagihashi, 6... Ignition powder, 8... Leg line, 9...
...Ridge line, 10...Blade edge. Figure 2, Figure S, Figure 3, Figure 4, Figure S.

Claims (1)

[Scope of Claims] 1. A igniter in which an electric bridge is constructed between pins connected to a power source, and a pyrotechnic charge is ignited by energizing the electric bridge, in which a corner portion is formed on the pin. An electric igniter of an igniter, characterized in that an electric bridge is constructed between the corners. 2. The electric igniter of an igniter according to claim 1, wherein the corner portion is a ridge of the triangular prism of a pin having at least a part shaped like a triangular prism. 3. The electric igniter of the igniter according to claim 1, characterized in that the corner portion is a cutting edge of a flat pin with a blade formed therein.