Fork for effecting the translational movement of the sliding sleeve in a gearbox
AssigneeDura Automotive Systems, Inc.
InventorsSebastien Maitre, Hugues Blanc
Life of this patent
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Abstract
The fork comprises inserts, overmoulded in a body made of a thermoplastic resin. The inserts have a modulus of elasticity at least twice as high as that of the thermoplastic resin and are shaped to form an arc-of-a-circle profile substantially matching the cross section delimited by the two prongs of the fork and, possibly, a ring for housing a drive shaft, The resin is charged, in particular with glass fibres, capable of linking the functions performed by said inserts.
Claims4
1- Fork for effecting translational movement of a sliding sleeve in a gearbox, comprising at least one insert, overmoulded in a body made of a thermoplastic resin, the at least one insert having a modulus of elasticity at least twice as high as a modulus of elasticity of the thermoplastic resin and shaped to form an arc-of-a-circle profile substantially matching the cross section delimited by prongs of the fork the resin being charged with glass fibres.
2- Fork according to claim 1, wherein the profile comprises a flat bar.
3- Fork according to claim 1, wherein the at least one insert comprises a ring for housing the drive shaft inserted, after overmoulding the body, into an orifice communicating with a through-hole to engage a means of locking the shaft in a translational and rotational manner.
4- Fork according to claim 3, wherein the locking means comprises a pin.