发明申请
- 专利标题: COUNTERBALANCE ASSEMBLY FOR A FOLD OUT RAMP
- 专利标题(中): 折旧组合折旧
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申请号: US12695943申请日: 2010-01-28
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公开(公告)号: US20110023246A1公开(公告)日: 2011-02-03
- 发明人: Donald Morris , David Johnson
- 申请人: Donald Morris , David Johnson
- 申请人地址: US CA Escalon
- 专利权人: LIFT-U, A DIVISION OF HOGAN MFG., INC.
- 当前专利权人: LIFT-U, A DIVISION OF HOGAN MFG., INC.
- 当前专利权人地址: US CA Escalon
- 主分类号: E01D1/00
- IPC分类号: E01D1/00
摘要:
A counterbalanced ramp assembly includes a ramp portion coupled for reciprocating motion between a stowed position, a deployed position, and a neutral position. First and second elements are operatively coupled to the ramp portion. When the ramp portion moves from the neutral position toward the deployed position, the first element moves a first end of a spring toward a second end of the spring as the second end of the spring maintains a fixed position. When the ramp portion moves from the neutral position toward the stowed position, the second element moves the second end of the spring toward the first end of the spring as the first end of the spring maintains a fixed position.
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