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US 7,596,858 B2Granted
Self-piercing device for setting a rivet element
AssigneeNewfrey LLC
InventorReinhold Opper
Life of this patent
Estimating the term…
Abstract
A system useful for riveting sheets of metal together. The system having a fastening element having a head on one side and a self-piercing surface on an opposite end, a die having an elastically moveable annular stop and a ring boost, and a ram assembly operably punching the piercing surface into a sheet. The fastening element may be a self-piercing rivet.
Claims21
A device comprising:
- a fastening element having a shaft, a head on one end of the shaft and a piercing surface on an opposite end of the shaft;
- a ram assembly operably punching the piercing surface through at least one part;
- and
- a die having:
- a die mount;
- a movable die segment having:
- a bearing surface resting upon the die mount;
- a segment stop surface oppositely directed with respect to the bearing surface;
- and
- a ring boost extending freely away from the segment stop surface and operating to penetrate the at least one part until the segment stop surface contacts the at least one part;
- and
- an elastically moveable annular stop operably forming a connection of the element to the at least one part.
9 more elements
Dependencies are inferred from the claim text.