Strapping tool with improved punches

Details Strapping tool with improved punches Strapping tool with improved punches

1996-11-06

1997-12-09

Larson, Lowell A.

Wireworking

Seal applying or band fastening

By device having cutting edge

140 932, B21F 0902

Patent

active

056949847

ABSTRACT:
An improvement in a punch design for a punch used within a strapping tool which creates seal-less connections between overlapping steel strap segments that are to be bound together. The punch is relieved along the edge surfaces that experience extreme forces during the stamping operation which physically binds the strap segments together. The relieved edges also provide a less acute angle for the stamped edge surfaces to scrape against once the tension on the straps is released.

REFERENCES:
patent: 4825512 (1989-05-01), Tremper et al.
patent: 5029433 (1991-07-01), Werk
patent: 5526852 (1996-06-01), Rakovski

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