Tensioning tool with self-energizing gripper plug

Details Tensioning tool with self-energizing gripper plug Tensioning tool with self-energizing gripper plug

1976-01-21

1977-04-05

Larson, Lowell A.

Wireworking

Applying wire

Binder tightening and joining implements

1401235, 100 32, 254 51, B21F 902

Patent

active

040156435

ABSTRACT:
A strapping tool having a resiliently biased feed wheel and a gripper plug in the base thereof. The feed wheel is movable relative to the gripper plug to permit loading and releasing of overlapping loop strap ends therebetween. The gripper plug has a concave gripping surface and is pivotally mounted in the base of the tensioning tool with the pivotal axis parallel to the axis of the feed wheel, thus permitting rotation of the gripper plug about its pivotal axis under the influence of the force on the overlapped strap ends during the tensioning action by the feed wheel. The interaction between the feed wheel surface and the concave gripping surface of the gripper plug distributes the impressed force therebetween uniformly over the segment of the overlapping strap ends lying between the two surfaces to preclude pinching of the strap.

REFERENCES:
patent: 3169011 (1965-02-01), Rutty
patent: 3360017 (1967-12-01), Vilcins
patent: 3367374 (1968-02-01), Meier et al.
patent: 3648739 (1972-03-01), Angarola

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