JPH0369887U

JPH0369887U -

Info

Publication number: JPH0369887U
Application number: JP13057389U
Authority: JP
Priority date: 1989-11-10
Filing date: 1989-11-10
Publication date: 1991-07-11

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による避雷管の短
絡機構を示す斜視図、第２図は第１図の避雷管を
示す斜視図、第３図は第１図の短絡片を示す斜視
図である。１……避雷管、２……中間電極、３……筒状体
、４……主電極、７……短絡機構、８……短絡片
、９……一方の細長片、１０……他方の細長片、
１１……取付部、１２……接触部、１３……絶縁
体。 FIG. 1 is a perspective view showing a short-circuiting mechanism of a detonator according to an embodiment of the invention, FIG. 2 is a perspective view showing the detonator shown in FIG. 1, and FIG. 3 is a perspective view showing the short-circuiting piece of FIG. 1. It is. DESCRIPTION OF SYMBOLS 1... Lightning arrester, 2... Intermediate electrode, 3... Cylindrical body, 4... Main electrode, 7... Short circuit mechanism, 8... Short circuit piece, 9... One elongated piece, 10... Other strip,
11...Mounting part, 12...Contact part, 13...Insulator.

Claims

[Scope of utility model registration request]

A pair of main electrodes are placed on both sides of an intermediate electrode having a passage passing through it in the axial direction, with an insulating cylindrical body interposed therebetween. In the short-circuiting mechanism, the discharge surfaces of the pair of main electrodes are attached to detonator caps that are opposed to each other with a discharge distance in between, and the short-circuit is formed in a substantially cross shape. A mounting portion curved in an arc shape is formed on one of the strips, the mounting portion is fitted onto the outer peripheral surface of the intermediate electrode to be elastically retained, and contacts are located at both ends of the other strip of the shorting strip. A short-circuit of the detonator, characterized in that the detonator is provided with an insulator that melts due to heat generated by discharge when the detonator is abnormal, and the contact part is pressed onto the main electrode through the insulator. mechanism.