Method and apparatus for staking

Details Method and apparatus for staking Method and apparatus for staking

B - Operations, Transporting

29

C

18/960

B29C 65/56 (2006.01) B29C 65/10 (2006.01) B29C 65/60 (2006.01)

Patent

CA 1256260

71087-92 APPARATUS FOR STAKING Abstract An apparatus for staking a formable projection, for example, a tab or boss, to retain plural articles in a unitary assembly. A projection on a first article is brought into registering position with an aperture in a second article to form the assembly. The assembly is clamped by a spring-loaded clamp pad which bears against the second article and surrounds the projection. The projection is then staked by action of a tool which travels reciprocally within the clamp pad and has a tip which cooperates with the clamp pad to form a cavity of desired shape. The forming stroke of the tool is against the resistive force of the spring, which increases the clamping force of the clamp pad. The formed projection is therefore contained within the inner boundary of the clamp pad and tool tip to thereby promote uniform head formation.

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