Swing clamp apparatus
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United States of America Patent
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Oct 13, 1998
Grant Date -
N/A
app pub date -
Jan 24, 1997
filing date -
Jan 24, 1997
priority date (Note) -
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Abstract
A hydraulically-operated swing clamp (10) for holding and clamping a workpiece (14) to a fixture (12) is disclosed. The swing clamp (10) includes an improved cam assembly (24) that swings its clamping head (22) away from the workpiece (14) when the piston (22) of the clamp (10) is shifted to its extended, unclamped position. The cam assembly (24) includes at least one cam track or groove (38,40,42) and a corresponding cam follower ball (44) received within the groove (38,40,42). The cam track (38,40,42) includes a central arcuate region (48) and a pair of substantially planar side faces (50,52) extending tangentially from the central arcuate region (48). The central arcuate region (48) has a radius of curvature substantially equal to the radius of curvature of the cam follower ball (44). The planar side faces (50,52) extend tangentially away from the central arcuate region (48) and the cam follower ball (44).
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