Brake assembly structure of transmission, transmission, and vehicle

Patent metadata

Field	Value
Publication number	US-10641380-B2
Application number	US-201815912569-A
Country	US
Kind code	B2
Filing date	Mar 6, 2018
Priority date	Mar 15, 2017
Publication date	May 5, 2020
Grant date	May 5, 2020

Abstract

There is provided a brake assembly structure for a transmission. An automatic transmission includes a torque converter, a transmission case, and a two-way clutch and a first brake which are accommodated in the transmission case and adjacent to each other. The first brake includes a drum, an outer plate that is fixed to the drum in such a manner that the outer plate is unrotatable with respect to the drum, an inner disk that comes in contact with the outer plate in an axial direction, and a hub to which the inner disk is fixed in such a manner that relative rotation is not permitted. The drum is provided separately from the transmission case and includes a hydraulic chamber. The two-way clutch is assembled in the transmission case and the first brake is then assembled in the transmission case.

First claim

What is claimed is:

1. A brake assembly structure of a transmission comprising a rotor on a side of a driving source, a transmission case disposed adjacent to the driving source, and two adjacent brakes accommodated in the case,
wherein, one of the two brakes on a side of the rotor comprises a drum, an outer plate that is fixed to the drum in such a manner that the outer plate is unrotatable with respect to the drum, an inner disk that is able to contact the outer plate in an axial direction, and a hub to which the inner disk is fixed in such a manner that relative rotation is not permitted,
wherein the drum and the hub are provided separately from the case,
wherein the drum comprises a hydraulic chamber,
wherein the brake assembly structure is configured that the other of the two brakes is assembled in the case, and the one brake is then assembled, and
the other brake is pressed by the one brake and the other brake is positioned by fixing the one brake onto the case.

2. The brake assembly structure of the transmission according to claim 1 ,
wherein the other brake is a two-way clutch.

3. The transmission comprising:
the brake assembly structure of the transmission according to claim 1 ;
an input unit; and
an output unit.

4. The transmission comprising:
the brake assembly structure of the transmission according to claim 2 ;
an input unit; and
an output unit.

5. A vehicle comprising:
the transmission according to claim 3 ;
the driving source configured to output a driving force to the transmission; and
a wheel that rotates due to the driving force output from the transmission.

6. A vehicle comprising:
the transmission according to claim 4 ;
the driving source configured to output a driving force to the transmission; and
a wheel that rotates due to the driving force output from the transmission.

7. The brake assembly structure of a transmission according to claim 1 ,
wherein the drum of the one brake is fixed to the case by a bolt in the axial direction, and the one brake abuts the other brake.

Assignees

• Honda Motor Co Ltd

Inventors

• Hara Hiroaki

Classifications

• F16H2200/2082

  one freewheel mechanisms · CPC title

• F16H3/62

  Gearings having three or more central gears (F16H3/68 - F16H3/78 take precedence) · CPC title

• F16D41/14

  the effective stroke of the pawl being adjustable · CPC title

• F16H2200/2035

  with two engaging means · CPC title

• F16H57/10 Primary

  Braking arrangements · CPC title