Plastic wheel assembly and mounting sleeve with stabilizing...

B - Operations – Transporting – 60 – B

Patent

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Details

B60B 23/00 (2006.01)

Patent

CA 2472600

A plastic wheel (122, 222) and wheel mounting sleeve (127, 227, 327, 427) used to releasably secure the wheel (122, 222) onto an axle (123, 223). The wheel mounting sleeve (127, 227, 327, 427) preferably includes a resilient, radially displaceable, axially extending, cantilevered finger (146, 246, 346, 446) which includes an axle-engaging lug (155, 255, 355, 455), while a wheel- engaging shoulder is provided on the sleeve by an annular rib (201, 301). The sleeve shoulders latch the sleeve (127, 227, 327, 427) to the axle (123, 223) and the wheel (122, 222) to the sleeve. The sleeve (127, 227, 327, 427) includes an axle stabilizing recess (198, 298, 398, 498) positioned in an end wall (158, 258, 358, 458), which receives an axle stub (199, 299) that supports the axle (123, 223) against lateral loading and stabilizes it to reduce wobble, chatter and vibration.

L'invention concerne une roue de plastique (122, 222) et un manchon de support de roue (127, 227, 327, 427) utilisés pour fixer de manière libérable la roue (122, 222) sur un essieu (123, 223). Le manchon de support de roue (127, 227, 327, 427) comprend, de préférence, un doigt en porte-à-faux (126, 246, 346, 446) qui peut se déplacer de manière radiale et s'étend dans le sens axial, est élastique, et comprend un ergot (155, 255, 355, 455) de mise en prise avec l'essieu. Par ailleurs, un épaulement de mise en prise avec la roue est prévu sur la roue sous forme d'une nervure annulaire (201, 301). Les épaulements du manchon verrouillent le manchon (127, 227, 327, 427) sur l'essieu (123, 223) et la roue (122, 222) sur le manchon. Ce dernier (127, 227, 327, 427) présente un évidement de stabilisation de l'essieu (198, 298, 398, 498) positionné dans une paroi d'extrémité (158, 258, 358, 458) dans lequel vient se loger une patte d'essieu (199, 299) qui supporte ce dernier (123, 223) contre toute sollicitation latérale et le stabilise pour éviter toute vibration, oscillation et broutage.

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