DRIVE FOR CONVERTING A ROTATIONAL MOVEMENT INTO AN AXIAL MOVEMENT

Title:

DRIVE FOR CONVERTING A ROTATIONAL MOVEMENT INTO AN AXIAL MOVEMENT

Document Type and Number:

WIPO Patent Application WO2001003984

Kind Code:

A3

Abstract:

The invention relates to an axial drive for converting a rotational movement into an axial movement. The spring spindle (10) substantially comprises a component (13) with a helical spring (12) rotationally fixed thereto and a component with engaging means (27) which engage radially into the interior of the helical spring (12), said engaging means being configured as a set of studs (32) which are distributed around the periphery. The studs (32a, 32b) make axial contact with the spring band by means of an anti-friction bearing (31) which is positioned on the studs, with one respective set of studs (32a) being used for the pushing direction and one set of studs (32b) for the pulling direction. Each set of studs (32a, 32b) can be adjusted along the spring band (29) in a thread-type manner, so that the spring band is supported without play at each peripheral section. In a preferred embodiment, the sets of studs (32a, 32b) are axially offset in relation to one another at a distance corresponding to the width of the spring band. One longitudinal end of the studs is attached in the component (11) and the other end is attached to a flange (27a) which is connected to the component (11) in a fixed manner using struts (not shown in detail).

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Inventors:

RABER CHRISTOPH (DE)

Application Number:

PCT/DE2000/002275

Publication Date:

May 17, 2001

Filing Date:

July 11, 2000

Export Citation:

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Assignee:

LUK LAMELLEN & KUPPLUNGSBAU (DE)
RABER CHRISTOPH (DE)

International Classes:

B23B31/24; F16D21/06; F16D23/12; F16D25/00; F16D28/00; F16D27/00; F16D27/108; F16H19/00; F16H25/24; F16H25/20; (IPC1-7): F16H19/00; F16H55/56; F16D23/12; B23B31/24

Foreign References:

US3167671A	1965-01-26
DE2311500A1	1974-08-14
FR2383362A2	1978-10-06
CH511384A	1971-08-15
DE2821153A1	1979-11-15

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