Pretensioning spring of a clutch actuating device, as well as manufacturing process of the pretensioning spring and clutch activation device.

摘要

Pretensioning spring of a clutch actuating device, as well as their production process and a clutch operating device, wherein the method of forming of the biasing spring comprises: using a first cutting blade for the separation of one end of the spring wire along a first separation surface and form of a first end portion, turning of the first separating surface, into a first rotational direction about a first angle and be flush with a first plane perpendicular to the spring wire; in a spiral winding of the spring wire and form of a biasing spring, wherein said first end portion has a first end face, and it is in the case of the first end face is a slanted surface on the rear side, to the center axis, and on the front side is directed to the outside of the prestressing spring; the use of a second cutting blade for separating the with the rest of the spring wire end of the pretensioning spring is connected along a second parting surface of the rotation of the second separation surface in a second direction of rotation by a second angle and be flush with a second plane perpendicular to the spring wire, wherein the first and second direction of rotation by two opposite directions are. With the use of these prestressing spring may each end face on a pressure piece in the circumferential direction of the release bearing, whereby the mounting speed is increased.