Title:
【発明の名称】安全クラッチ
Document Type and Number:
Japanese Patent JPH086782
Kind Code:
B2
Abstract:
A safety clutch includes a first tubular part (1), a second tubular part (13) and a plurality of locking members (5) co-operating with said parts in such a manner as to establish therebetween a releasable connection. The locking members (5) have inclined abutting surfaces (11) orientated so that the engagement between said surfaces and a corresponding abutting surface (12) on the second part (13) exerts a radially outwardly force on the locking members (5). Said force is transmitted over axially parallel locking surfaces (16) to a corresponding locking surface (19) on an encircling locking ring (18) which in the locked position of the clutch mechanically prevents the locking members (5) from disengaging the second part (13). The releasing force of the clutch is thus closely associated with the frictional force existing between the locking surfaces (16 and 19) and which in practice may have any desired value. A spring-biassed and axially displaceable release ring (25) for releasing the clutch is arranged around the locking ring (18). Dependent upon the allowed axial displacement of the release ring (25) it is obtained that the force transmitted to the locking ring is either equal to the force of the inserted spring or is directly equal to the force exerted on the release ring (25). This opens up the prospect of obtaining in a simple manner a safe release of the clutch in the off-load case as well as in the on-load case.
Inventors:
Torben Knack
Ludwig Ness
Ludwig Ness
Application Number:
JP8888288A
Publication Date:
January 29, 1996
Filing Date:
April 11, 1988
Export Citation:
Assignee:
Tanner and Company Haan Ells Sales Garp Actizel Scabet
International Classes:
B63B23/58; F16G11/00; B63B23/70; (IPC1-7): F16G11/00; B63B23/70
Domestic Patent References:
| JP5151695A |
Attorney, Agent or Firm:
Kyozo Yuasa (6 people outside)
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