Anti-theft device
First Claim
1. An anti-theft device in the form of a coupling which acts between a steering wheel and a steering-wheel shaft and which includes two coupling-halves (10,11) which are rigidly connected to an outer end of the steering-wheel shaft and to the centre of the steering wheel respectively, and which further includes connecting means (23,35) active between said coupling-halves and operative to connect the said coupling-halves detachably together, wherein the one coupling-half (11) has provided thereon a plug (15) which widens towards one end thereof and a support surface (16) located at said one end of the plug and projecting outwards substantially in the transverse direction of said plug, whereas the other coupling-half (10) includes a sleeve (22) which fits the plug (15) and which, in the mutually coupled state of said coupling-halves, receives the plug and in turn is supported by said support surface (16), and wherein the connecting means (23,35) comprise locking plungers (23) which are spring-biassed in a radially inward direction and which pass through the wall of said sleeve and are intended to be received in recesses (20,21) provided in said plug (15), characterized in that each locking plunger (23) and associated recess (20,21) in the plug are configured as a wedge assembly which, in the mutually coupled state of said coupling-halves (10, 11), strives to press the sleeve (22) in a direction towards said support surface (16) while preventing movement of the sleeve in a direction away from the support surface and wherein a pressure-spring device (33) is active between said support surface (16) and the end-surface (32) of the sleeve facing said support surface.
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Accused Products
Abstract
An anti-theft device intended primarily for automotive vehicles comprises a coupling including two interconnectable coupling-halves firmly attached to an outer end of a steering-wheel shaft and to the center of a steering wheel, respectively. One coupling half includes a plug and the other coupling half includes a sleeve which fits the plug. Locking plungers passing through the sleeve wall and spring biased radially inwardly are intended to be received in recesses in the plug. Each locking plunger and associated recess from a wedge assembly which strives to press an end surface of the sleeve towards a support surface projecting outwardly from the plug, while preventing movement of the sleeve in an opposite direction. A pressure spring device acts between the support surface and the end surface.
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Citations
10 Claims
- 1. An anti-theft device in the form of a coupling which acts between a steering wheel and a steering-wheel shaft and which includes two coupling-halves (10,11) which are rigidly connected to an outer end of the steering-wheel shaft and to the centre of the steering wheel respectively, and which further includes connecting means (23,35) active between said coupling-halves and operative to connect the said coupling-halves detachably together, wherein the one coupling-half (11) has provided thereon a plug (15) which widens towards one end thereof and a support surface (16) located at said one end of the plug and projecting outwards substantially in the transverse direction of said plug, whereas the other coupling-half (10) includes a sleeve (22) which fits the plug (15) and which, in the mutually coupled state of said coupling-halves, receives the plug and in turn is supported by said support surface (16), and wherein the connecting means (23,35) comprise locking plungers (23) which are spring-biassed in a radially inward direction and which pass through the wall of said sleeve and are intended to be received in recesses (20,21) provided in said plug (15), characterized in that each locking plunger (23) and associated recess (20,21) in the plug are configured as a wedge assembly which, in the mutually coupled state of said coupling-halves (10, 11), strives to press the sleeve (22) in a direction towards said support surface (16) while preventing movement of the sleeve in a direction away from the support surface and wherein a pressure-spring device (33) is active between said support surface (16) and the end-surface (32) of the sleeve facing said support surface.
Specification