US 11,879,545 B2
Parking brake for a motor vehicle and motor vehicle comprising the parking brake
Walter Mariotti, Pontedera (IT); Marcello Fiaccavento, Pontedera (IT); and Carlo Magagnini, Pontedera (IT)
Assigned to PIAGGIO & C. S.P.A., Pontedera (IT)
Appl. No. 17/908,952
Filed by PIAGGIO & C. S.P.A., Pontedera (IT)
PCT Filed Feb. 26, 2021, PCT No. PCT/IB2021/051615
§ 371(c)(1), (2) Date Sep. 2, 2022,
PCT Pub. No. WO2021/176314, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 102020000004459 (IT), filed on Mar. 3, 2020.
Prior Publication US 2023/0087985 A1, Mar. 23, 2023
Int. Cl. F16H 63/34 (2006.01); B62D 63/04 (2006.01)
CPC F16H 63/3416 (2013.01) [B62D 63/04 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A parking brake for a motor-driven vehicle, the parking brake comprising:
an inhibitor device, adapted to be associated to a drive shaft for rotating therewith, the inhibitor device being actuated by means of centrifugal force; and
a locking member adapted to engage the inhibitor device;
wherein the inhibitor device is configured to move from:
a first angular position in which the inhibitor device prevents the engagement of the locking member when said drive shaft rotates at a rotation speed greater than a minimum speed,
to a second angular position in which the inhibitor device allows the engagement of the locking member when said drive shaft rotates at a rotation speed lower than said minimum speed; and
wherein said inhibitor device is actuated by means of a centrifugal force, correlated to said rotation speed.