US 12,109,988 B2
Brake apparatus for vehicle
Hyeong Sik Kim, Yongin-si (KR); Choong Sik Shin, Yongin-si (KR); and Taik Sang Kwon, Yongin-si (KR)
Assigned to Hyundai Mobis Co., Ltd., Seoul (KR)
Filed by HYUNDAI MOBIS Co., Ltd., Seoul (KR)
Filed on Jan. 4, 2022, as Appl. No. 17/567,986.
Claims priority of application No. 10-2021-0000386 (KR), filed on Jan. 4, 2021; and application No. 10-2021-0003321 (KR), filed on Jan. 11, 2021.
Prior Publication US 2022/0212648 A1, Jul. 7, 2022
Int. Cl. B60T 13/74 (2006.01); B60T 1/06 (2006.01); F16D 65/18 (2006.01); F16D 121/24 (2012.01); F16D 125/40 (2012.01); F16D 125/50 (2012.01)
CPC B60T 13/746 (2013.01) [B60T 1/065 (2013.01); F16D 65/18 (2013.01); F16D 2121/24 (2013.01); F16D 2125/40 (2013.01); F16D 2125/50 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A brake apparatus for a vehicle comprising:
a housing;
a drive part configured to generate power;
a power transmission part disposed in the housing and configured to transmit the power from the drive part while rotating in conjunction with an operation of the drive part; and
an anti-collision part disposed between the housing and the power transmission part and configured to prevent a collision between the housing and the power transmission part,
wherein the power transmission part comprises:
a first power transmission part configured to rotate by receiving the power from the drive part;
a second power transmission part configured to engage with the first power transmission part and rotate in conjunction with a rotation of the first power transmission part; and
a third power transmission part configured to engage with the second power transmission part and rotate in the same direction as the first power transmission part in conjunction with a rotation of the second power transmission part,
wherein the second power transmission part comprises:
a second rotary shaft, which is the rotary shaft of the anti-collision part penetrates through the through hole of the anti-collision part and is fixed to the housing;
a first gear configured to rotate about the second rotary shaft and engage with the first power transmission part;
a second gear configured to extend from the first gear, have a smaller diameter than the first gear, and engage with the third power transmission part; and
a first friction reducer disposed between the first gear and the second rotary shaft and configured to support the first gear so that the first gear is rotatable,
wherein the first friction reducer comprises:
an insertion portion in sliding contact with an inner peripheral surface of the first gear and configured such that the second rotary shaft is inserted into the insertion portion;
a support portion extending in a radial direction of the insertion portion and configured to adjoin the housing and support the insertion portion; and
a cut-out portion configured to penetrate the insertion portion and induce deformation of the insertion portion when the second rotary shaft is inserted into the insertion portion.