초록 ▼

A shear pin assembly suitable for use in a rocket retention and release system is provided. Each shear pin has a head and a shank with a passageway extending axially along the length of the shear pin. In the rocket release system, the shear pin connects a shear pin ring to the rear end of the rocket

A shear pin assembly suitable for use in a rocket retention and release system is provided. Each shear pin has a head and a shank with a passageway extending axially along the length of the shear pin. In the rocket release system, the shear pin connects a shear pin ring to the rear end of the rocket. A hole to receive the shear pin is provided in both the shear pin ring and the rear end of the rocket. The hole in the ring extends completely therethrough and has a diameter less than the diameter of the hole in the rocket. The passageway in the pin has parallel sides in longitudinal cross-section at the head end of the pin and sides which taper inwardly towards the shank end of the pin at the shank end. When the pin is inserted into the holes to connect the ring and rear end of the rocket together, the pin is expanded by a mandrel so that a shank end portion of the pin in the hole of the rocket fills the cross-section of the hole. Preferably a solid plug is then inserted in the passageway of the pin by means of a punch. When inserted in the pin, the plug is located entirely in the shank end portion of the pin located in the hole in the rear end of the rocket. Preferably the outer end of the inserted plug is located just below the shear plane formed between the ring and the rocket.

대표청구항 ▼

A rocket retention and release assembly comprising a first member forming means for connecting at least one shear pin to a rocket launcher, a second member forming part of the rear end of a rocket, at least one shear pin for connecting said first and second members together, the or each shear pin ha

A rocket retention and release assembly comprising a first member forming means for connecting at least one shear pin to a rocket launcher, a second member forming part of the rear end of a rocket, at least one shear pin for connecting said first and second members together, the or each shear pin having a head and a shank with a passageway extending axially along the length of said shear pin, a first hole extending completely through said first member, a second hole in said second member having a diameter greater than the diameter of said first hole, wherein said passageway has parallel sides in longitudinal cross-section at the head end of the pin and sides which taper inwardly towards the shank end of the pin at said shank end and, when the pin is inserted into both holes of said first and second members to connect said members, the pin is expandable by a mandrel so that a shank end portion of the pin in the hole of said second member fills the cross-section of the hole.