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Paramétrages

Paramétrages

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1. WO1990004535 - DISPOSITIF ANTIVOL

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS
1. An anti theft device characterised in that it comprises first inner and second outer rotatable members, the first member being located within the second member, means to secure the anti theft device to a vehicle to be rendered non-steerable when not required for use and a means having a first position in which the first and second members are engaged with one another so as to be arranged to rotate together so that the vehicle can be steered and a second position in which the first and second numbers are
disengaged from one another so as to be independently rotatable so that the vehicle cannot be steered.
2. An anti theft device according to Claim 1,
characterised in that the first inner rotatable member has a plurality of spaced apertures and the second outer rotatable member has a plurality of corresponding spaced recesses and means is provided for interengaging the apertures and corresponding recesses when aligned so that the inner and outer members can be rotated together.
3. An anti theft device according to Claim 2,
characterised in that the means for interengaging the inner and outer member comprises rollers or balls located in the apertures of the inner member.
4. An anti theft device according to Claim 3,
characterised in that means is provided for urging the rollers or balls into engagement with the recesses of the outer member when the apertures and recesses are aligned. "5. An anti theft device according to Claim 4,
characterised in that there is provided a reciprocably rotatable cam member arranged to be rotated relative to the inner rotatable member and being located within the inner rotatable member, the cam member having a lobe for each roller or ball and being arranged to bear against each roller or ball such that when the apertures and recesses are aligned the rollers or balls are urged into the recesses.

6. An anti theft device according to Claim 5,
characterised in that each cam lobe has a corresponding

adjacent face which bears against the corresponding roller when the rollers or balls are not engaged with the recesses of the outer rotatable member.
7. An anti theft device according to Claims 5 or 6 , in which each recess has a depth less than half of the
corresponding dimension of the roller or ball so that the roller or ball can be readily disengaged from the recess when the cam is rotated back.
8. An anti theft device according to Claims 5 or 6 , characterised in that there is provided a lock means
operatively connected to the cam member, the lock means being arranged to rotate the cam member under control of a key.
9. A vehicle such as a cycle characterised in that it is fitted with an anti theft device according to Claim 1.
10. A cycle headstem having an upper end having means for connection to handle bars and a lower end arranged to be connected to fork means characterised in that the headstem comprises adjacent its upper end an anti theft device according to Claim 1.