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Browse Prior Art Database

Force Limiting Coupling Member

IP.com Disclosure Number: IPCOM000089969D
Original Publication Date: 1968-Dec-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 52K

Publishing Venue

IBM

Related People

Friedman, M: AUTHOR

Abstract

This force limiting device couples two members and transmits compressive loads between such members. Drawing 1 is a schematic representation of the device which comprises connecting rods 12 and 14, spring 20, and levers 22 and 24. A force applied at A and exceeding a predetermined magnitude causes the connecting rods to buckle at pivotal connection P.

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Force Limiting Coupling Member

This force limiting device couples two members and transmits compressive loads between such members. Drawing 1 is a schematic representation of the device which comprises connecting rods 12 and 14, spring 20, and levers 22 and
24. A force applied at A and exceeding a predetermined magnitude causes the connecting rods to buckle at pivotal connection P.

Drawing 2 shows the device with two sets of connecting rods 12, 14, 16, and
18. Also, two springs are used, one for each set of connecting rods. Two members to be joined are pivotally connected at C and D. When the predetermined compressive force between A and B is exceeded, the device buckles as shown in drawing 3.

Compressive forces between A and B can be applied repeatedly with consistent results. When the predetermined force is exceeded, the compressive force between them is immediately reduced to zero. This device is easily reset after an overload is applied without loss in positional accuracy after repeated operations. Also, the resetting force is considerably less than the predetermined force that causes the device to buckle.

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