B - Operations – Transporting – 60 – B
Patent
B - Operations, Transporting
60
B
B60B 33/00 (2006.01) B60B 33/02 (2006.01)
Patent
CA 2494740
A support structure for a castor, a castor provided with such a support- structure, and a castored trolley is described. The support structure comprises a first member 5, a second member 3 that is rotatable with respect to the first member about a pivot axis, and magnetic means 21, 23, 61, 63 that is operable up to a certain torque to restrain movement of the rotatable member from one angular position with respect to the first member. Preferably the magnetic means comprises at least one hair of magnetically co~-operable components. Preferably one component of the at least one pair of components is a permanent magnet. In another angular positions without registration of the first and second members free rotation is possible unless and until re- registration occurs.
L'invention porte sur une structure de support pour roulette, sur une roulette pourvue de ladite structure et un sur un chariot à roulettes. La structure de support comprend un premier élément (5), un second élément (3) pouvant tourner par rapport au premier autour d'un axe pivot et un organe magnétique (21, 23 ; 61, 63) pouvant fonctionner jusqu'à un certain couple afin de limiter le mouvement de l'élément rotatif depuis une position angulaire par rapport au premier élément. L'organe magnétique comprend de préférence au moins une paire de composants coopérants magnétiques. De préférence, un composant d'au moins une paire des composants est un aimant permanent. Dans d'autres positions angulaires, sans repérage des premier et second éléments, une rotation libre est possible faute de et jusqu'à apparition d'un nouveau repérage.
Castor Technology Ltd
Marks & Clerk
LandOfFree
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