Transmission structure for vehicle

Patent metadata

Field	Value
Publication number	US-10794484-B2
Application number	US-201715447298-A
Country	US
Kind code	B2
Filing date	Mar 2, 2017
Priority date	Mar 18, 2016
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

A transmission case 210 supports a shift shaft 222 that constitutes a part of a speed change operation mechanism 220 , and which receives an operating input and transmits a speed change motion of a transmission 201 . A part of a transmission holder 162 M in which part the shift shaft 222 is disposed includes a shaft insertion opening portion 162 g that the shift shaft 222 is disposed so as to pass through.

First claim

The invention claimed is:

1. A transmission structure for a vehicle, the transmission structure comprising:
a transmission having a plurality of speed change stages, the transmission including a speed change operation mechanism that has an output portion receiving an input motion produced by a speed change operation and changing a speed change stage and a transmission case that houses the speed change operation mechanism, a part of the transmission case being constituted by a transmission holder rotatably supporting at least one end of a speed change shaft of the transmission;
the transmission case supporting an actuating shaft member that constitutes a part of the speed change operation mechanism, and receives an operating input and transmits a speed change motion of the transmission, and
a part of the transmission holder, the actuating shaft member being disposed in the part of the transmission holder, including a through hole that the actuating shaft member is disposed so as to pass through,
wherein
the speed change operation mechanism includes a swinging member that receives the speed change operation and swings, and the swinging member is formed so as to be able to pass through the through hole in an axial direction of a swinging shaft of the swinging member.

2. The transmission structure for a vehicle according to claim 1 , wherein
a boss portion that is protruded to a swinging range of the swinging member and rotatably supports a gear part disposed in the speed change operation mechanism is formed on the transmission holder, and a machined portion avoiding interference with the swinging member is formed in the boss portion.

3. The transmission structure for a vehicle according to claim 2 , wherein
the through hole has clearance portions formed to allow an output transmitting member to pass through the through hole, the output transmitting member having an external shape larger than a shaft diameter of a shaft portion of the actuating shaft member.

4. A transmission structure for a vehicle, the transmission structure comprising:
a transmission having a plurality of speed change stages, the transmission including a speed change operation mechanism that has an output portion receiving an input motion produced by a speed change operation and changing a speed change stage and a transmission case that houses the speed change operation mechanism, a part of the transmission case being constituted by a transmission holder rotatably supporting at least one end of a speed change shaft of the transmission;
the transmission case supporting an actuating shaft member that constitutes a part of the speed change operation mechanism, and receives an operating input and transmits a speed change motion of the transmission, and
a part of the transmission holder, the actuating shaft member being disposed in the part of the transmission holder, including a through hole that the actuating shaft member is disposed so as to pass through,
wherein
the through hole has clearance portions formed to allow an output transmitting member to pass through the through hole, the output transmitting member having an external shape larger than a shaft diameter of a shaft portion of the actuating shaft member.

5. The transmission structure for a vehicle according to claim 4 , wherein
the clearance portions are formed in recessed shapes adjacent to the boss portion disposed on the transmission holder.

6. The transmission structure for a vehicle according to claim 4 , wherein
the through hole forms a substantially sectorial shape as viewed from a front of the transmission holder, and the clearance portions are each formed in respective intermediate portions of two sides formed in a shape of two straight lines.

7. The transmission structure for a vehicle according to claim 5 , wherein
the through hole forms a substantially sectorial shape as viewed from a front of the transmission holder, and the clearance portions are each formed in respective intermediate portions of two sides formed in a shape of two straight lines.

8. A transmission structure for a vehicle, the transmission structure comprising:
a transmission having a plurality of speed change stages, the transmission including a speed change operation mechanism that has an output portion receiving an input motion produced by a speed change operation and changing a speed change stage and a transmission case that houses the speed change operation mechanism, a part of the transmission case being constituted by a transmission holder rotatably supporting at least one end of a speed change shaft of the transmission;
the transmission case supporting an actuating shaft member that constitutes a part of the speed change operation mechanism, and receives an operating input and transmits a speed change motion of the transmission, and
a part of the transmission holder, the actuating shaft member being disposed in the part of the transmission holder, including a through hole that the actuating shaft member is disposed so as to pass through,
wherein
an outer periphery portion of the transmission holder is fitted to an open end of the transmission case, and a part of the transmission holder, the through hole being disposed in the part of the transmission holder, is disposed in a position offset from the open end to an inside of the transmission.

Assignees

• Honda Motor Co Ltd

Inventors

• Fujimoto Yasushi
• Hirayama Taku
• Tanaka Hirokazu

Classifications

• F16H61/32 Primary

  Electric motors  {, actuators or related electrical control means}  therefor · CPC title

• F16H2057/0203

  the gearbox is associated or combined with a crank case of an engine · CPC title

• B62K23/08

  foot actuated · CPC title

• F16H2063/3093

  Final output elements, i.e. the final elements to establish gear ratio, e.g. coupling sleeves or other means establishing coupling to shaft · CPC title

• B62M11/06

  with spur gear wheels (B62M11/14 takes precedence) · CPC title