Invention Grant
- Patent Title: Axially restraining torsional spring utilizing a tapered housing
- Patent Title (中): 采用锥形壳体轴向限制扭转弹簧
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Application No.: US13712757Application Date: 2012-12-12
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Publication No.: US08925910B2Publication Date: 2015-01-06
- Inventor: Jeffrey L. George
- Applicant: Aktiebolaget SKF
- Applicant Address: SE Gothenburg
- Assignee: Antiebolaget SKF
- Current Assignee: Antiebolaget SKF
- Current Assignee Address: SE Gothenburg
- Agency: SKF USA Inc. Patent Department
- Agent Mark Ussai
- Main IPC: B23Q17/00
- IPC: B23Q17/00 ; B21D53/60 ; F16F7/00 ; F16F1/54

Abstract:
A rotational and axial control spring includes a tubular casing, a shaft, and a plurality of elongated elastomeric members. The casing comprises a first end, a second end, and a plurality of interior surfaces extending therebetween defining a casing interior. The first end is smaller than the second end, forming a frustum shaped tubular casing. The cross sectional shape of the casing can include three (3) or more sides. The shaft is fabricated having a series of exterior surfaces, wherein a cross sectional shape of the shaft is similar to the cross sectional shape of the casing. The elastomeric members are formed as cylindrical frustums. The shaft is inserted within the casing interior. Each elastomeric member is positioned contacting a respective shaft exterior surface and a pair of adjacent casing interior surfaces. The elastomeric members each provide a rotational spring with adjustable resistant force and dampening functions. The tapered features provide an axial retention function.
Public/Granted literature
- US20140159293A1 AXIALLY RESTRAINING TORSIONAL SPRING UTILIZING A TAPERED HOUSING Public/Granted day:2014-06-12
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