US 12,460,720 B2
Actuation device for a transmission system
Christophe Mollier, Cergy Pontoise (FR); Herve Maurel, Cergy Pontoise (FR); and Fabien Diascorn, Cergy Pontoise (FR)
Assigned to VALEO EMBRAYAGES, Amiens (FR)
Filed by VALEO EMBRAYAGES, Amiens (FR)
Filed on Apr. 19, 2024, as Appl. No. 18/640,226.
Claims priority of application No. 2303933 (FR), filed on Apr. 19, 2023.
Prior Publication US 2024/0353003 A1, Oct. 24, 2024
Int. Cl. F16H 63/30 (2006.01)
CPC F16H 63/304 (2013.01) [F16H 2063/3056 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An actuation device for a transmission system, comprising:
an electric motor kinematically connected to a speed reduction device and an output shaft of the speed reduction device having an axis of rotation, the output shaft being arranged to pivot through three adjacent angular sectors being a first angular sector, a second angular sector adjacent to the first angular sector, and a third angular sector adjacent to the second angular sector;
an actuation cam rigidly connected to the output shaft for rotation therewith; and
a receiving part axially movable along a main axis perpendicular to the axis of rotation, comprising a receiving recess for receiving the actuation cam formed by two surfaces parallel to each other and perpendicular to the main axis,
wherein the receiving part moves axially between two end positions when the output shaft pivots through the whole second angular sector,
wherein the receiving part remains axially immobile in a first end position when the rotation of the output shaft is situated in the first angular sector,
wherein the receiving part remains axially immobile in a second end position when the rotation of the output shaft is situated in the third angular sector,
wherein the actuation cam has two contact zones bearing on the parallel surfaces of the receiving recess, and a bearing width along the main axis separating the two contact zones is constant in the three angular sectors of rotation of the output shaft, and
wherein an angle value of the first angular sector is greater than 3° and an angle value of the third angular sector is greater than 3°.