Title:
WORK VEHICLE
Document Type and Number:
Japanese Patent JP2017035961
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To achieve a clutch to be equipped in a two-wheel drive/four-wheel drive switching mechanism, which can be manufactured at low costs, so as to suppress manufacturing costs of a work vehicle.SOLUTION: In a two-wheel drive/four-wheel drive switching mechanism 79 of a tractor, a drive input gear 50 comprises a plurality of pawls 50a arranged in a circumference direction. At an outer periphery of a four-wheel drive clutch piston 81 is formed a mounting groove 81d extending in the circumference direction. Into the mounting groove 81d is inserted a pawl plate 87 having a first pawl 87a corresponding to the pawls 50a of the drive input gear 50 so as not to be rotatable relatively to the four-wheel drive clutch piston 81. The pawl 50a of the drive input gear 50 is made to contact the first pawl 87a, so that relative rotation of the four-wheel drive clutch piston 81 to the drive input gear 50 is restricted, where drive force of a sub speed-change shaft 35 is transmitted to a front-wheel output shaft 30 through the drive input gear 50, the four-wheel drive clutch piston 81 and a cylinder member 80.SELECTED DRAWING: Figure 5
Inventors:
DAIYAKUJI TAIHEI
NOMURA HITOSHI
NOMURA HITOSHI
Application Number:
JP2015157476A
Publication Date:
February 16, 2017
Filing Date:
August 07, 2015
Export Citation:
Assignee:
YANMAR CO LTD
International Classes:
B60K17/348; F16D11/00
Domestic Patent References:
| JPH1178574A | 1999-03-23 | |||
| JPH11173413A | 1999-06-29 | |||
| JP2003247643A | 2003-09-05 |
Attorney, Agent or Firm:
Naomi Katsura River