发明名称 |
Height-adjustment mechanism for a chair |
摘要 |
A height adjustment mechanism in a chair operates automatically by raising and lowering a chair component such as a chair back. The height adjustment mechanism is provided on a chair back or other chair support and includes a gear which engages a rack member that is vertically movable relative thereto in response to movement of the chair back. A locking member is provided which engages the gear to prevent downward movement of the chair back while still permitting upward movement of the chair back. A disengagement member also is provided to separate the gear and the locking member and maintain the gear in a disengaged position that permits lowering of the chair back.
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申请公布号 |
US6533355(B2) |
申请公布日期 |
2003.03.18 |
申请号 |
US20010819540 |
申请日期 |
2001.03.28 |
申请人 |
HAWORTH, INC. |
发明人 |
BROEKHUIS MICHAEL D.;NELSON PATRICK C.;ROSLUND, JR. RICHARD N.;SIMPSON STEPHEN J. |
分类号 |
A47C3/26;A47C7/40;(IPC1-7):B60N2/02 |
主分类号 |
A47C3/26 |
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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