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Title:
PARKING LOCK DEVICE OF VEHICLE DRIVE DEVICE, AND VEHICLE DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/176771
Kind Code:
A1
Abstract:
Provided is a parking lock device of a vehicle drive device with which an increase in the size of members constituting a parking lock can be prevented, and with which engagement between a parking gear and a parking pawl can be reliably released even when parked on a sloping road having a steep gradient. This parking lock device is provided with a parking gear 51 which is provided on a rotating shaft 31 of a vehicle drive device and which is provided on an outer circumferential portion thereof with a plurality of recessed portions 51a for engagement, a parking pawl 52 which includes a protrusion 52a that engages with the recessed portions 51a of the parking gear 51 and which is capable of rocking about a support shaft between an engaged position and a non-engaged position, and first and second parking cams 54a, 54b capable of causing the protrusion 52a of the parking pawl 52 to rock between a position of engagement with the recessed portions 51a of the parking gear 51 and a standby position of non-engagement, wherein the first and second parking cams 54a, 54b are rotary eccentric cams, the first parking cam 54a abuts the parking pawl 52 on the opposite side to the parking gear 51 side thereof, and the second parking cam 54b abuts the parking pawl 52 on the parking gear 51 side thereof.

Inventors:
YOKOYAMA Takeshi (1578 Higashikaizuka, Iwata-sh, Shizuoka 10, 〒4388510, JP)
YUKISHIMA Ryou (1578 Higashikaizuka, Iwata-sh, Shizuoka 10, 〒4388510, JP)
Application Number:
JP2019/009334
Publication Date:
September 19, 2019
Filing Date:
March 08, 2019
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
F16H63/34; B60K7/00; B60K17/14; B60T1/06; F16D63/00; F16D65/16; F16H1/06; F16H61/32; F16D121/14; F16D125/28; F16D125/48
Foreign References:
JP2004353739A2004-12-16
JP2017067108A2017-04-06
JP2011057011A2011-03-24
JP2011098677A2011-05-19
Attorney, Agent or Firm:
TORII Kazuhisa et al. (PATRIO Patent Office, Hommachi Takeda Building 1-29, Kyutaro-machi 3-chome, Chuo-Ku, Osaka-sh, Osaka 56, 〒5410056, JP)
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