发明授权
- 专利标题: Compound bow with adjustable eccentric wheel
- 专利标题(中): 复合弓与可调偏心轮
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申请号: US961760申请日: 1978-11-17
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公开(公告)号: US4241715A公开(公告)日: 1980-12-30
- 发明人: Thomas P. Jennings
- 申请人: Thomas P. Jennings
- 申请人地址: CA Valencia
- 专利权人: Jennings Compound Bow, Inc.
- 当前专利权人: Jennings Compound Bow, Inc.
- 当前专利权人地址: CA Valencia
- 主分类号: F41B5/10
- IPC分类号: F41B5/10 ; F41B5/00
摘要:
A compound bow, including a center handle portion, upper and lower limbs respectively attached to the upper and lower ends of the handle portion and having resilient properties, a bow string, a pair of draw cables, and coupling the bow string between the draw cables to provide a continuity between the bow string and the draw cables, a pair of draw pulleys each constructed to receive an individual one of the draw cables and each operatively coupled to an individual one of the limbs at a position near the end of the associated limb, each of the draw cables having a peripheral portion and a central portion, first and second spaced grooves in the peripheral portion and a path leading through the central portion and connecting the first and second grooves, and with the path intersecting the first and second grooves at particular points and each of the draw pulleys permitting variations of the point of intersection between the path and at least one of the first and second grooves for providing an adjustment in the draw length and the draw weight of the bow.