Tear-edge guard

Details Tear-edge guard Tear-edge guard

1990-01-31

1991-06-18

Watts, Douglas D.

Severing by tearing or breaking

Severing by manually forcing against fixed edge

With blade-edge guard

225 19, B26F 302

Patent

active

050243624

ABSTRACT:
A guard intended to prevent hand-injuries against tear-bars has an elongated form (6) and extends parallel with a tear-edge and is moveable in a direction transversal to its longitudinal axis. The guard (6) has a length equal to the length of the tear-bar (2). The guard (6) is guided in a gap (5) defined between a strip-like (4) front side of the tear-bar (2) and an inwardly angled part of the wall (1) of the casing intended to accommodate, for instance, a paper-roll holder incorporating the tear-bar (2). For the purpose of limiting movement of the guard (6) between an outer active guard position and an inner inactive position, in which the tear-edge of the tear-bar (2) is exposed, there is provided along the guard (6) a rib (8) which abuts the free edge of the strip-like front side of the tear-bar in the outer position of the guard. The guard is displaced to its inner position in the gap (5) by the material web (P) when severing the paper-web against the tear-bar (2).

REFERENCES:
patent: 440928 (1890-11-01), Schenk
patent: 1231415 (1917-06-01), Nebergall
patent: 2125736 (1938-08-01), Murray
patent: 3552614 (1971-01-01), Wilson et al.
patent: 3972458 (1976-08-01), Hamada

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