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Article: Analysis of nonlinearly elastic cantilever snap beams for assembly of plastic parts.(First Symposium on Oriented Polymers )
- Article from:
- Polymer Engineering and Science
- Article date:
- November 1, 1997
- Author:
CopyrightCOPYRIGHT 1997 Society of Plastics Engineers, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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INTRODUCTION
A snap joint [ILLUSTRATION FOR FIGURE 1 OMITTED] between two plastic parts is a common type of lock pair, which consists of a cantilever beam with a projecting bead at its free end as a locking feature. The cantilever is an integral component of one of the two plastics parts. The locking feature in the other part is a groove matching the projecting bead at the end of the cantilever. During assembly/disassembly as the projecting bead slides over the matching part, the cantilever deflects in the direction opposite to the bead. Once the assembly is complete, the bead at the free end of the cantilever fits into the matching groove and the cantilever ...
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