Vehicular transmission device

Patent metadata

Field	Value
Publication number	US-9638317-B2
Application number	US-201314394561-A
Country	US
Kind code	B2
Filing date	May 16, 2013
Priority date	May 18, 2012
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A transmission device of a vehicle that can use a manual transmission. The transmission is provided with shift blocks for regulating shifting between gear positions so as to achieve automatic gear shifting. This vehicle transmission device includes the shift block for a reverse-1st speed, a 4th speed-5th speed, a 2nd speed-3rd speed, and a 6th speed arranged in this order in a selection operation direction. The vehicle transmission device also includes first through fourth shift levers that engage respectively with the shift blocks, a first select actuator that moves the first or second shift lever for a select operation, a first shift actuator that moves the first or second shift lever for a shift operation, a second select actuator that moves the third or fourth shift lever for the select operation, and a second shift actuator that moves the third or fourth shift lever for the shift operation.

First claim

What is claimed is:

1. A transmission device of a vehicle using a transmission, the transmission having a reverse gear position and a 1st speed gear position arranged opposite to one another, a 2nd speed gear position and a 3rd speed gear position arranged opposite to one another, a 4th speed gear position and a 5th speed gear position arranged opposite to one another, and a 6th speed gear position, with shift blocks configured to shift into the gear positions by a shift operation, the transmission being configured to perform a select operation and then perform the shift operation of the shift blocks for an automatic gear shifting, the transmission device comprising:
the shift blocks including a shift block of a reverse-1st speed, the shift block of a 4th speed-5th speed, a shift block of a 2nd speed-3rd speed, and a shift block of a 6th speed arranged in a direction of the select operation;
first to fourth shift levers configured to engage with the shift blocks,
a first select actuator configured to move, by the select operation, the first shift lever engaged with the shift block of the reverse-1st speed or the second shift lever engaged with the shift block of the 4th speed-5th speed;
a first shift actuator configured to move the first or second shift lever by the shift operation;
a second select actuator configured to move, by the select operation, the third shift lever engaged with the shift block of the 2nd speed-3rd speed or the fourth shift lever engaged with the shift block of the 6th speed; and
a second shift actuator configured to perform the shift operation of the third or fourth shift lever that has moved by the select operation of the second select actuator.

2. The transmission device of the vehicle according to claim 1 , wherein the gear positions of the reverse and the 1st-speed are arranged opposite to one another, the gear positions of the 2nd speed and the 3rd speed are arranged opposite to one another, the gear positions of the 4th speed and the 5th speed are arranged opposite to one another, first and second shift shafts parallel to one another are disposed at the gear position of the 6th speed, a first shift fork is fixedly secured to the first shift shaft, the shift block of the reverse-1st speed is fixedly secured to the first shift shaft, the first shift fork is configured to shift the gear positions of the reverse and the 1st speed, a second shift fork is disposed on the first shift shaft such that the second shift fork is movable in an axial direction, the second shift fork is configured to shift the gear positions of the 2nd speed and the 3rd speed, the shift block of the 2nd speed-3rd speed is coupled to the second shift fork, a fourth shift fork is coupled to the second shift shaft via a link lever, the shift block of the 6th speed is fixedly secured to the second shift shaft, the fourth shift fork is configured to shift to the gear position of the 6th speed, a third shift fork is disposed on the second shift shaft such that the third shift fork is movable in the axial direction, the third shift fork is configured to shift the gear positions of the 4th speed and the 5th speed, and the shift block of the 4th speed-5th speed is coupled to the third shift fork.

3. The transmission device according to claim 1 , wherein each of the first shift lever and the second shift lever is formed in an L shape, the first shift lever is spaced from the second shift lever in an up-down direction, the first and second shift levers are turnable horizontally, each of the first shift lever and the second shift lever has a lever portion in an L-folded part, the lever portion of the first shift lever engages with the shift block of the reverse-1st speed, the lever portion of the second shift lever engages with the shift block of the 4th speed-5th speed, and turning of the first shift lever and the second shift lever causes moving, by the shift operation, of the shift block of the reverse-1st speed and the shift block of the 4th speed-5th speed via the lever portions.

4. The transmission device of the vehicle according to claim 3 , wherein each of the third shift lever and the fourth shift lever is formed in an L shape, the third shift lever is spaced from the fourth shift lever in an up-down direction, the third and fourth shift levers are turnable horizontally, the third shift lever and the fourth shift lever are disposed opposite the first shift lever and the second shift lever, each of the third shift lever and the fourth shift lever has a lever portion in an L-folded part, the lever portion of the third shift lever engages with the shift block of the 2nd speed-3rd speed, the lever portion of the fourth shift lever engages with the shift block of the 6th speed, and turning of the third shift lever and the fourth shift lever causes moving, by the shift operation, of the shift block of the 2nd speed-3rd speed and the shift block of the 6th speed via the lever portions.

5. The transmission device of the vehicle according to claim 1 , wherein each of the first and second select actuators includes a select motor and a shift cylindrical body, the shift cylindrical body engages with any of rear ends of the first and second shift levers or the third and fourth shift levers upon rotation of the associated select motor, each of the first and second shift actuators includes a shift motor and a ball screw for reciprocating the shift cylindrical body in the direction of the shift operation, and the ball screw is coupled to the associated shift motor and threadably mounted on the associated shift cylindrical body.

Assignees

• Isuzu Motors Ltd

Inventors

• ENAMI Katsuhiro

Classifications

• F16H61/32 Primary

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

• F16H63/20

  with preselection and subsequent movement of each final output mechanism by movement of the final actuating mechanism in two different ways, e.g. guided by a shift gate · CPC title

• Y10T74/2003

  Electrical actuator · CPC title

• F16H2061/2884

  Screw-nut devices · CPC title

• F16H2061/2892

  other gears, e.g. worm gears, for transmitting rotary motion to the output mechanism · CPC title