Transmission mounting structure

Patent metadata

Field	Value
Publication number	US-9347544-B2
Application number	US-201414536204-A
Country	US
Kind code	B2
Filing date	Nov 7, 2014
Priority date	Nov 8, 2013
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

The present invention provides a transmission mounting structure. A transmission case is constructed by connecting a clutch case, a case main body, and an end case, which are split in the direction of a rotational center axis. The clutch case and the case main body are provided with projecting portions. The projecting portions are connected by co-fastening bolts. Fixtures are secured to the projecting portions by mounting bolts, which are installed from the direction of the rotational center axis. The transmission is installed to a vehicle through the intermediary of supports. The projecting portions are co-fastened by the mounting bolts.

First claim

What is claimed is:

1. A transmission mounting structure for mounting a transmission in a vehicle, wherein the transmission comprises:
an input section to which a power of a drive source is transmitted;
a transmission case that rotatably supports the input section; and
an output section disposed in parallel to or concentric with a rotational center axis of the input section, and
the transmission is configured to change a gear ratio and is configured to change a rotational speed of the input section and output the changed rotational speed from the output section;
the transmission case is configured by connecting a plurality of split cases that are split in a direction of the rotational center axis;
the split cases include projecting portions that project outward in a radial direction at portions where the split cases that are adjacent to each other are connected, and the projecting portions of the adjacent split cases are overlapped and connected by a co-fastening bolt;
the transmission is mounted in a vehicle through an intermediary of a support, which is fixed by a mounting bolt attached to the projecting portions from the direction of the rotational center axis; and
the overlapped projecting portions are co-fastened by the mounting bolt.

2. The transmission mounting structure according to claim 1 ,
wherein the projecting portions are located lower than the input section and provided in a form of paired right and left portions that sandwich the input section.

3. The transmission mounting structure according to claim 2 ,
wherein an upper portion of the drive source is attached to the vehicle.

4. The transmission mounting structure according to claim 3 ,
wherein a differential gear, to which a power from the output section is transmitted, is provided,
the differential gear is configured to have a rotational center axis in a direction orthogonal to an axis of the output section, and
the center axis of the differential gear, to which the power from the output section is transmitted, intersects with a straight line that connects a position at which the drive source is installed to the vehicle and a position of the mounting bolt.

5. The transmission mounting structure according to claim 4 ,
wherein the output section is positioned higher than the input section, and
the support is a pair of right and left supports disposed such that each thereof is equidistant from the rotational center axis of the input section.

6. The transmission mounting structure according to claim 1 ,
wherein the output section is positioned higher than the input section, and
the support is a pair of right and left supports disposed such that each thereof is equidistant from the rotational center axis of the input section.

Assignees

• Honda Motor Co Ltd

Inventors

• Ashimori Takashi
• Kimura Mitsuo
• Hirano Yoshimi

Classifications

• B60K17/165

  provided between independent half axles (B60K17/18, B60K17/20 take precedence) · CPC title

• F16H2057/02043

  for vehicle transmissions · CPC title

• F16H57/025 Primary

  Support of gearboxes, e.g. torque arms, or attachment to other devices · CPC title

• B60K17/08

  of mechanical type · CPC title

• B60K5/1216

  characterised by the location of the supports relative to the motor or to each other (B60K5/1225 takes precedence) · CPC title