Title:
WORKING MACHINE
Document Type and Number:
Japanese Patent JP2016089615
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a working machine with a two-range and selectable 2WD/4WD transmission, without requiring a complex gearbox.SOLUTION: A working machine comprises: a ground engaging structure with a first and a second axles 20a, b, each having at least two wheels mounted thereon; a body supported on the ground engaging structure, a working arm mounted on the body; and a drive arrangement including a prime mover 64 and a transmission to propel the working machine. The transmission comprises a hydraulic pump 75 driven by the prime mover 64, a first high speed hydraulic motor 76 to drive the first axle 20a to permit the working machine to be driven at relatively high speeds in a first two-wheel drive operating mode, and a second low speed hydraulic motor 77 which is supplied with hydraulic fluid from the hydraulic pump to drive the second axle 20b at relatively low speeds and is configured to be driven in conjunction with the first motor 76 in a second four-wheel drive operating mode.SELECTED DRAWING: Figure 4
Inventors:
JOHN GRIFFIN
JONATHAN LYLE
JONATHAN LYLE
Application Number:
JP2015211643A
Publication Date:
May 23, 2016
Filing Date:
October 28, 2015
Export Citation:
Assignee:
JC BAMFORD EXCAVATORS LTD
International Classes:
E02F9/22; B60K5/04; B60K15/063; F16H39/02
Attorney, Agent or Firm:
Hidekazu Miyoshi
Masakazu Ito
Yuko Hara
Masakazu Ito
Yuko Hara