US 4,063,514 AGranted

Grenade fuze

AssigneeThe United States of America as represented by the Secretary of the Army

InventorHarry J. Hadfield

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Abstract

A fuze for shaped charge grenades adapted to be ejected over a target area rom a projectile in flight wherein means are provided in the fuze housing to hold the detonator out of alignment with the firing pin and operable upon ejection of the grenade from the projectile to align the detonator with the firing pin.

Claims4

Dependent claims

A fuze for a shaped charge grenade adapted to be ejected over a target area from a projectile in flight comprising in combination:

a body having a longitudinal bore therethrough consisting of a first bore of one diameter extending from one end of the body to an intermediate point thereof and a second bore extending from said intermediate point to the opposite end of the body whereby an abutment is formed in the longitudinal bore at the intermediate point;
a vented firing pin affixed in the first bore at said one end of the body having its pin member directed inwardly of the first bore and having a lead charge affixed in a chamber in the base thereof;
a closure means formed with a central perforation affixed to the opposite end of the body;
a weight member adapted to slide in the second bore having one end extending through said central perforation and an opposite end formed with a flange member normally abutting said abutment and whereby the movement of said weight member is limited between the abutment and closure member;
a capped tubular member formed on said body radially thereof in communication with the first bore;
resilient means coupling a detonator releasably positioned in said tubular member with the flange of said weight member;
spring means releasably coupled to said body and biasing the weight into engagement with said abutment whereby the detonator is releasably retained in out of line position with the vented firing pin;
and
coupling means coupling said spring means with the said one end of the weight whereby when said fuze assembled to a grenade ejected from said projectile the spring means disengages from said body and is caught in the air stream causing the weight to move in the second bore until its flange contacts said closure means whereupon during such movement the detonator is withdrawn from the tubular member and positioned in alignment with said firing pin by the resilient means.

6 more elements

Dependencies are inferred from the claim text.

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Abstract

A fuze for a shaped charge grenade adapted to be ejected over a target area from a projectile in flight comprising in combination:

a body having a longitudinal bore therethrough consisting of a first bore of one diameter extending from one end of the body to an intermediate point thereof and a second bore extending from said intermediate point to the opposite end of the body whereby an abutment is formed in the longitudinal bore at the intermediate point;
a vented firing pin affixed in the first bore at said one end of the body having its pin member directed inwardly of the first bore and having a lead charge affixed in a chamber in the base thereof;
a closure means formed with a central perforation affixed to the opposite end of the body;
a weight member adapted to slide in the second bore having one end extending through said central perforation and an opposite end formed with a flange member normally abutting said abutment and whereby the movement of said weight member is limited between the abutment and closure member;
a capped tubular member formed on said body radially thereof in communication with the first bore;
resilient means coupling a detonator releasably positioned in said tubular member with the flange of said weight member;
spring means releasably coupled to said body and biasing the weight into engagement with said abutment whereby the detonator is releasably retained in out of line position with the vented firing pin;
and
coupling means coupling said spring means with the said one end of the weight whereby when said fuze assembled to a grenade ejected from said projectile the spring means disengages from said body and is caught in the air stream causing the weight to move in the second bore until its flange contacts said closure means whereupon during such movement the detonator is withdrawn from the tubular member and positioned in alignment with said firing pin by the resilient means.

6 more elements