Breakstem riveting tool with stem disposal device

Details Breakstem riveting tool with stem disposal device Breakstem riveting tool with stem disposal device

1979-10-12

1981-06-30

Godici, Nicholas P.

Metal deforming

By relatively movable offset tool-faces

With tool motion in fixed path

7245317, B21J 1534

Patent

active

042755832

ABSTRACT:
A blind riveting tool head for placing blind breakstem rivets is provided with a stem-disposal device which comprises a flexible hose connected to the rear end of a passage running rearwardly through the head from the rivet-placing jaws. An air injector at the junction of the head and the hose supplies both a flow of air rearwardly along the hose to assist broken-off stem portions rearwardly therealong, and also a flow of air forwardly along the passage through the head. When the tool head is operated to place a rivet, both airflows are shut off as the rivet-placing jaws approach their rearmost position, and thereafter the rearward airflow along the hose is re-established before the forwards airflow along the passage.

REFERENCES:
patent: 3363445 (1968-01-01), Sanders
patent: 3367166 (1968-02-01), Newton
patent: 3415102 (1968-12-01), Elliott
patent: 3523441 (1970-08-01), Bell
patent: 3657915 (1972-04-01), Lee

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