公开(公告)号：US20080116737A1

公开(公告)日：2008-05-22

申请号：US11602155

申请日：2006-11-17

Applicant: Edward St. George

Inventor： Edward St. George

IPC: B60B15/26 ,  B60B15/04

CPC classification number: B60B9/10 ,  B60B11/00

Abstract: A shock absorbing wheel assembly. In a first embodiment, the wheel assembly comprises a rigid hub adapted to be mounted on an axle, a first relatively elastic material concentrically mounted over and affixed to the hub and an annular wheel having a first outer diameter comprised of a second relatively inelastic material overlying and affixed to the outer perimeter of the first relatively elastic material. The first relatively elastic material is preferably a toroid comprised of a closed cell foam. In a second embodiment, the wheel assembly is a compound wheel comprising, in combination, the first embodiment of the wheel assembly wherein the first embodiment is elastically compressible, coaxially mounted adjacent to a relatively noncompressible second wheel having a second outer diameter that is less than the first outer diameter. In the second embodiment, the elastically compressible portion of the compound wheel assembly deforms inwardly when subjected to a shocking event until the outer surface of the second wheel comes into contact with the supporting surface thereby gradually transferring the weight of the wheelchair to the outer surface of both wheels and reducing shock.

Abstract translation: 减震轮组件。 在第一实施例中，车轮组件包括适于安装在轴上的刚性轮毂，同心地安装在毂上并固定到轮毂上的第一相对弹性材料，以及具有第一外径的环形轮，第二外径由第二相对非弹性材料 并固定到第一相对弹性材料的外周。 第一相对弹性材料优选为由闭孔泡沫构成的环形面。 在第二实施例中，车轮组件是复合轮，其组合地包括车轮组件的第一实施例，其中第一实施例是可弹性压缩的，与第二外径小于相对不可压缩的第二轮相邻地同轴安装， 第一外径。 在第二实施例中，复合轮组件的弹性可压缩部分经受震动事件时向内变形，直到第二轮的外表面与支撑表面接触，从而逐渐将轮椅的重量转移到 两轮和减震。