Title:
WORKING TRUCK
Document Type and Number:
WIPO Patent Application WO/2003/060350
Kind Code:
A1
Abstract:
A working truck in which speed change function and handling performance are enhanced by providing a hydraulic speed change mechanism (57) and a transmission gear (74) for transmitting the driving power of an engine (2), forming a speed change output by combining outputs from the hydraulic speed change mechanism (57) and the transmission gear (74), obtaining an output of high power transmission efficiency using the transmission gear (74), obtaining a variable speed output capable of zero start using the hydraulic speed change mechanism (57) and performing speed regulation by a simple speed change operation depending on the situation, and in which creep speed performance is enhanced easily by rotating an output shaft (84) for combining and speed changing the outputs from the hydraulic speed change mechanism (57) and the transmission gear (74) uni−directionally by forward or reverse rotation of the hydraulic speed change mechanism (57) thereby ensuring the output torque easily at the time of zero start, while furthermore work efficiency on a muddy pavement is enhanced utilizing the output of high power transmission efficiency from the transmission gear (74) effectively at the working speed.
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Inventors:
MAEKAWA TOMOFUMI
MATSUOKA HIDEKI
INOUE MAKOTO
YAMASHITA TSUNATAKE
MATSUOKA HIDEKI
INOUE MAKOTO
YAMASHITA TSUNATAKE
Application Number:
PCT/JP2002/007650
Publication Date:
July 24, 2003
Filing Date:
July 26, 2002
Export Citation:
Assignee:
YANMAR AGRICULT EQUIP (JP)
International Classes:
F16H47/04; F16H3/083; (IPC1-7): F16H47/04
Foreign References:
| JPH0560202A | 1993-03-09 | |||
| JPH116557A | 1999-01-12 | |||
| JPS53120047A | 1978-10-20 | |||
| JP2001317611A | 2001-11-16 |
Attorney, Agent or Firm:
Fujiwara, Tadaharu (9-28 Nishishinsaibashi 1-chome, Chuo-k, Osaka-shi Osaka, JP)
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