Strap tension sensing and cut off mechanism

Details Strap tension sensing and cut off mechanism Strap tension sensing and cut off mechanism

1979-12-04

1982-07-20

Combs, Ervin M.

Wireworking

Implements

Stretchers

B21F 902

Patent

active

RE0309966

ABSTRACT:
A tension sensing and cut off control mechanism which operates independently of the mechanism for drawing tight a closed loop bundling strap placed about objects to be bundled. Within a stationary block, affixed to one end of a tool housing, is placed a movable block held stationary by a displaceable pin. Adjustable loading means engage said pin to control its movement based on the tension to be applied to the strap. Below the established load a separate pawl mechanism draws the strap up about the bundle. When the load on the pin is exceeded, the movable block is moved by the strap head causing a blade means to sever the strap adjacent the head and all parts return to their original positions.

REFERENCES:
patent: 3169560 (1965-02-01), Caveney et al.
patent: 3891012 (1975-06-01), Bakermans
patent: 3931838 (1976-01-01), Bakermans
patent: 3946769 (1976-03-01), Caveney et al.
patent: 3993109 (1976-11-01), Fortsch
patent: 4094342 (1978-06-01), Nishikawa et al.

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