B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
B60T 7/16 (2006.01) B60R 25/00 (2006.01) B60T 7/18 (2006.01) B62B 5/04 (2006.01)
Patent
CA 2205826
For a shopping cart wheel, for example, a toggle brake assembly which can be automatically actuated by an audio frequency signal when the cart is taken out of a designated area. When actuated, a battery-powered solenoid coil of the brake assembly is energized, drawing a coil spring catch away from a locking position on a toggle. The toggle then drops with a pivotal or axial movement to a braking position against the wheel, either against the outside or inside of the wheel depending on the brake embodiment used. As the wheel rotates in either direction, the toggle wedges or hooks to brake the wheel.
Cette invention concerne un dispositif de freinage articulé pour poussette de marché, par exemple, qui peut être actionné automatiquement par un signal basse fréquence déclenché à la sortie non autorisée de la poussette d'un secteur désigné. Ce signal a pour effet d'énergiser un électroaimant du dispositif de freinage qui libère un verrou à ressort hélicoïdal servant à retenir le segment de frein articulé en position inactive. La chute de ce segment articulé, par mouvement axial ou pivotant, contre l'intérieur ou l'extérieur d'une roulette de la poussette, selon la configuration adoptée, a pour effet de bloquer la roulette peu importe le sens de rotation qui lui est imprimé.
Blake Cassels & Graydon Llp
Schweninger Quentin David
LandOfFree
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