Importance

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Abstract

A tooth wheel intended to co-act with a transmission member with transmission elements, which tooth wheel bears a number of protrusions arranged on the periphery which are each provided with at least one contact surface for co-action with the transmission elements, including self-adjusting protrusions for adjusting the pitch of the contact surfaces, wherein each protrusion can swivel substantially in the main plane of the tooth wheel round at least one centre outside the connecting line between the centre line of the tooth wheel and the zone of engagement between the contact surface and a transmission element. It is an object of the invention to embody a tooth wheel such that the distribution of the forces over the protrusions is better in the case of individual variations of the relevant pitch distances. With a view to this object the tooth wheel according to the invention has the feature that during a swivelling of the relevant protrusion the contact surface of the transmission element co-acting therewith undergoes a substantial radial displacement in relation to the tooth wheel.

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First Claim