Worm gear clamping apparatus

Details Worm gear clamping apparatus Worm gear clamping apparatus

1976-01-21

1977-09-13

Gilliam, Paul R.

Buckles, buttons, clasps, etc.

Bale and package ties, hose clamps

With tighteners

24 16PB, B65D 6300

Patent

active

040472680

ABSTRACT:
A worm gear clamping apparatus including a molded, one-piece worm gear drive head and strap assembly, the end of the strap oppositely disposed from the worm gear drive head defining partial internal threads on its outward surface. The apparatus also includes a molded worm member having external threads and an elongated guide portion projecting forwardly of the threads. The worm gear drive head defines a strap-receiving opening for receiving the opposite end of the strap, and also defines a worm chamber configured to receive the external threads of the worm member. The forward end of the worm gear drive head defines a journal opening for receiving the elongated guide portion axially movable therein. The worm gear drive head also includes a sloped, rearward surface, and the elongated guide portion of the worm member is long enough that when the worm member is moved to its rearwardmost position, it may be pivoted, disengaging the external threads from the partial internal threads and permitting free axial movement of the strap member relative to the worm gear drive head.

REFERENCES:
patent: 3757394 (1973-09-01), Turner
patent: 3924299 (1975-12-01), McCormick

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