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Patent Searching and Data


Title:
CONTROL WORK VEHICLE
Document Type and Number:
Japanese Patent JP2000170871
Kind Code:
A
Abstract:

To reduce the manufacturing cost of a hydraulic structure and to easily simplify the same by connecting a hydraulic elevating pump for ascending and descending a working machine, to a charged oil pressure circuit of a hydraulic continuously variable transmission.

In a control working vehicle comprising a hydraulic continuously variable transmission 32 in a transmission case 6, a hydraulic elevating pump 40 for ascending and descending a working machine 29 is connected to a charged hydraulic circuit 42 of the transmission 32 for supplying the charged oil pressure from the elevating pump 40 to the transmission 32. A charging pump of the transmission 32 is omitted, thus reducing the manufacturing cost of a hydraulic structure and simplifying the same, and further an air-cooling fan 45 is mounted on a charging pump shaft 44 of the transmission 32, and the air-cooling fan 45 is mounted by utilizing the undesired charging pump shaft 44 for cooling the transmission case 6 and the transmission 32 only by adding the air-cooling fan 45, whereby a rise of oil temperature prevention structure can be simplified and cost can be reduced.


Inventors:
SHINKO TADAYUKI
Application Number:
JP1998000350934
Publication Date:
June 23, 2000
Filing Date:
December 10, 1998
Export Citation:
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Assignee:
YANMAR AGRICULT EQUIP
International Classes:
A01B63/10; F16H39/02; (IPC1-7): F16H39/02; A01B63/10
Attorney, Agent or Firm:
藤原 忠治