A device for dispensing two sided adhesive tape pieces and a...

B - Operations – Transporting – 65 – H

Patent

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Details

B65H 35/07 (2006.01) B65C 11/00 (2006.01) B65H 37/00 (2006.01) B65H 75/10 (2006.01)

Patent

CA 2472772

The device has a roll (1) of a carrier strip (2) holding pieces (3) of two sided adhesive tape and wound on a hub (5) with an outer radius and provided with a circular cogging (6), a support (7) for the roll (1) comprising a stub shaft (9) with a direction of axis around which the roll rotates when dispensing tape pieces (3), a brake pawl (23) for engagement with the circular cogging (6), a pressure base (15) being in connection with the brake pawl (23) such that the engagement of the brake pawl (23) with the cogging (6) is released by pressure on the pressure base (15), a peripheral wall (10,11) extending along a part of the periphery of the roll (1), and a path for the carrier strip (2) extending past the pressure base (15) and along a part of the outside of the peripheral wall (10,11), the pressure base (15) comprising an outer sliding surface (16,17) defining a part of the path for the carrier strip (2) with the two sided adhesive tape where the path at the pressure base (15) comprises a portion with a relative sharp curve (18) with a radius of curvature being essentially smaller than the outer radius of the hub. The two sided adhesive tape (3) is of a relatively rigid material, the two sided adhesive tape (3) being separated from the carrier strip (2) when the latter passes said relatively sharp curve (18) during advance.

L'invention concerne un dispositif équipé des éléments suivants: rouleau (1) de bande porteuse (2) qui soutient des morceaux (3) de ruban adhésif à deux faces, autour d'un moyeu (5) à rayon externe et crantage circulaire (6); support (7) pour le rouleau (1), comprenant un arbre à bout (9) avec une orientation d'axe de rotation établie pour la rotation du rouleau en cours de distribution des morceaux de ruban (3); cliquet de frein (23) qui s'engrène avec le crantage circulaire (6); base de pression (15) reliée au cliquet de frein (23), de sorte que l'engrènement du cliquet de frein (23) et du crantage (6) soit libéré par la pression exercée sur la base de pression (15); paroi périphérique (10,11) qui s'étend le long d'une partie de la périphérie du rouleau (1); et trajet pour la bande porteuse (2) qui s'étend au-delà de la base de pression (15) et le long d'une partie de l'extérieur de la paroi périphérique (10,11), sachant que la base de pression (15) comprend une surface coulissante externe (16,17) qui définit une partie du trajet pour la bande porteuse (2) de ruban adhésif à deux faces, et que le trajet au niveau de la base de pression (15) comprend une partie où il existe une courbe relativement prononcée (18) à rayon de courbure essentiellement inférieur au rayon externe du moyeu. Le ruban adhésif à deux faces (3) est en matériau relativement rigide, et le ruban adhésif à deux faces (3) est séparé de la bande porteuse (2) lorsque celle-ci franchit la courbe susmentionnée (18) au cours de sa progression.

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