发明名称 |
Swivel wheel assembly |
摘要 |
A swivel wheel assembly which is easy to assemble and convenient for use includes a tube plug inserted into a tube leg, a pivot pin inserted into the tube plug and a rotary member rotatably secured on the pin. The rotary member supports a shaft and pair of wheels. By using a hard material for the pin, a softer material for the rotary member and a still softer material for the tube plug, friction is reduced. The plug, pin and rotary member are assembled without the use of fasteners. The rotary member includes a resilient flexible member with a key received in a circumferential groove of the pivot pin.
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申请公布号 |
US5408723(A) |
申请公布日期 |
1995.04.25 |
申请号 |
US19940176495 |
申请日期 |
1994.01.03 |
申请人 |
GRACO CHILDREN'S PRODUCTS, INC. |
发明人 |
JULIEN, CHRISTINE E.;SIESHOLTZ, DEVON T. |
分类号 |
B60B33/00;(IPC1-7):B60B33/00 |
主分类号 |
B60B33/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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