Trolley with a swivable guide wheel

Details Trolley with a swivable guide wheel Trolley with a swivable guide wheel

B - Operations, Transporting

62

B

B62B 3/00 (2006.01) B60B 33/02 (2006.01) B62B 3/14 (2006.01) B62B 5/00 (2006.01)

Patent

CA 2565649

The present invention relates generally to a castor wheel assembly (1) fitted onto the underside of the frame of a shopping trolley. The wheel assembly (1) comprises a wheel (2) mounted to a wheel mount (4) and rotatable about its rotational axis (6). Locking means in the form of an engagement element (8) and an actuator element (10) is operatively coupled to the wheel mount (4) for releasably engaging a locking element (12) of the wheel mount (4) to restrict swivelling of the wheel (2) about a swivel axis (S) of the wheel mount (4). The engagement of the engagement element (8) with the locking element (12) is only effected when the wheel (2) is rotated in a forward direction such that the wheel (2) is substantially freely rotatable about the swivel axis (S) when the wheel (2) is rotated in the reverse direction.

L'invention concerne de manière générale un ensemble roue pivotante (1) disposé sur le côté inférieur du châssis d'un chariot de supermarché. L'ensemble roue (1) de l'invention comprend une roue (2) montée sur un élément de fixation de roue (4) et tournant autour de son axe de rotation (6). Un moyen de verrouillage sous forme d'élément de mise en contact (8) et un élément d'actionnement (10) sont fonctionnellement raccordés à l'élément de fixation de roue (4) afin de mettre en contact libérable un élément de verrouillage (12) de l'élément de fixation de roue (4) destiné à limiter le pivotement de la roue (2) autour d'un axe de pivotement (S) dudit élément de fixation de roue (4). La mise en contact de l'élément de mise en contact (8) avec l'élément de verrouillage (12) est uniquement effectuée lorsque la roue (2) tourne dans une direction vers l'avant de façon à tourner de manière sensiblement libre autour de l'axe de pivotement (S) lorsqu'elle tourne dans le sens inverse.

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