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    • 6. 发明申请
    • CASTER HAVING REPLACEABLE SHIELDED BEARING
    • 具有可更换屏蔽轴承的车壳
    • WO2011159822A1
    • 2011-12-22
    • PCT/US2011/040563
    • 2011-06-15
    • MARTENSON, Susan, AnnBURKE, Christopher, M.
    • MARTENSON, Susan, AnnBURKE, Christopher, M.
    • B60B33/00
    • A47G9/0253A47G9/00A47G9/0284Y10T16/1847Y10T29/4973
    • A caster (100, 200, 300) includes a yoke (102) for retaining a wheel, a bearing housing (400) connected to the yoke (102) and a replaceable shielded bearing (120) occupying the bearing housing (400). The inner wall (408) of the bearing housing is provided with a groove (410) into which a retaining ring (130) may be inserted to prevent the shielded bearing (120) from escaping. A caster mounting assembly (190, 290, 390) having a connecting member (140, 240, 342) which passes through a central opening (124) of the shielded bearing (120) is configured to connect the yoke (102) and the bearing housing (400) to a rollable article, such as chair or table. In the event that the shielded bearing (120) needs to be replaced, the caster (100, 200, 300) may be disassembled, the retaining ring (130) removed from the groove (410), a new shielded bearing substituted for the old shield bearing, the retaining ring (130) replaced in the groove (410), and the caster (100, 200, 300) reassembled.
    • 脚轮(100,200,300)包括用于保持车轮的轭架(102),连接到轭架(102)的轴承座(400)和占据轴承座(400)的可更换屏蔽轴承(120)。 轴承壳体的内壁(408)设置有凹槽(410),可以插入保持环(130)以防止屏蔽轴承(120)逸出。 具有穿过屏蔽轴承(120)的中心开口(124)的连接构件(140,240,342)的脚轮安装组件(190,290,390)构造成将轭架(102)和轴承 住房(400)到可滚动的物品,例如椅子或桌子上。 在需要更换屏蔽轴承(120)的情况下,脚轮(100,200,300)可以被拆卸,保持环(130)从凹槽(410)移除,新的屏蔽轴承代替旧的 屏蔽轴承,在凹槽(410)中更换保持环(130),并重新组装脚轮(100,200,300)。