Wedge drive with positive-action return device

Details Wedge drive with positive-action return device Wedge drive with positive-action return device

B - Operations, Transporting

21

D

B21D 28/32 (2006.01)

Patent

CA 2659906

The invention relates to a V-belt drive (1) with a first part (20) that can be provided with a machining tool, and a second part (30), with both parts (20, 30) arranged in such a way that said parts (20, 30) can move in opposite directions to each other, and with at least one force returning device that can engage with or be engaged by both parts (20, 30), and with a third part (10) that is connected to the first part (20). The at least one force returning device has no return spring and has at least one device for the actuation and/or support for the returning of the one part (20) and/or for the increase of the applicable returning force during the returning of the one part (20) during the upward travel of the third part (10).

L'invention concerne un entraînement par courroie trapézoïdale (1) comprenant une première partie (20) pouvant être munie d'un outil d'usinage et une deuxième partie (30), les deux parties (20,30) étant disposées de manière mobile de façon opposée l'une à l'autre. Au moins un dispositif de rappel forcé pouvant agir ou agissant sur les deux parties (20,30) est prévu, et l'entraînement par courroie trapézoïdale comprend également une troisième partie (10) reliée à la première partie (20). L'au moins un dispositif de rappel forcé est dénué de ressort de rappel et présente au moins un dispositif pour provoquer et/ou appuyer le rappel de la première partie (20) et/ou pour augmenter la force de rappel applicable lors du rappel de la première partie (20) pendant la course ascendante de la troisième partie (10).

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