Blw Praezisionsschmiede Gmbh

Gerd Weissmann

Peter Gutmann

Georg Tauschek

In a coupling tooth formation, in particular in a gear box, either on a gear sleeve or on a gear wheel, the teeth are fitted to the base end of a cylindrical base ( ) in relation to the rotational axis, elongate in axial direction and provided at their coupling end with a roof outline sloping from the tooth base towards the tooth head, comprising a rounded roof edge ( ); the radius of the roof edge rounding increases from the tooth base towards the tooth head according to a pre-set function in order to design the procedure of the tracking process after the initial contact as smoothly running as possible.

Clutch gearing especially for a manual transmission

The invention concerns a morphology matrix for forming the cross-sectional shape of a short gearing tooth, in particular on toothed wheels of motor vehicle gearboxes. The short gearing teeth are formed on a cylindrical section of a gear wheel or gear shift sleeve, the axis of this section coinciding with the displacement axis of the gear shift sleeve. Each tooth comprises a tip which is chamfered in roof-like manner and has lateral flanks (,) which are shaped towards the tooth base (,) so that they have a relief at least over part of their height. The lateral flanks (,) terminate in a radiused tooth base (,), all of the teeth, or some thereof defined according to a regularly changing pattern, having at least a morphology defining the shape of the lateral flanks.

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Finsing, Germany

Gerd Weissmann