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Patent Searching and Data


Title:
SHIFT CONTROL DEVICE FOR INDUSTRIAL VEHICLE
Document Type and Number:
WIPO Patent Application WO/2008/066169
Kind Code:
A1
Abstract:
A shift control device for an industrial vehicle, having a speed ratio detection section for detecting the speed ratio between the input shaft and output shaft of a torque converter, a shift control section for shifting up a speed range when the detected speed ratio is not less than a first predetermined value and shifting down a speed range when the detected speed ratio is not more than a second predetermined value less than the first predetermined value, and an operation member for instructing, when operated by an operator, shift down to the first speed. When shift down is instructed to the shift control section by the operation member, the speed range is kept at the first speed for a predetermined time independent of the speed ratio detected by the speed ratio detection section.

Inventors:
HYODO KOJI (JP)
TANAKA TETSUJI (JP)
SAKAI EIICHI (JP)
ISHIMARU GENICHIRO (JP)
TAKAHASHI TOMOO (JP)
YAMAZAKI YASUO (JP)
Application Number:
PCT/JP2007/073219
Publication Date:
June 05, 2008
Filing Date:
November 30, 2007
Export Citation:
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Assignee:
TCM CORP (JP)
HITACHI CONSTRUCTION MACHINERY (JP)
HYODO KOJI (JP)
TANAKA TETSUJI (JP)
SAKAI EIICHI (JP)
ISHIMARU GENICHIRO (JP)
TAKAHASHI TOMOO (JP)
YAMAZAKI YASUO (JP)
International Classes:
F16H61/18; E02F9/20; F16H59/12
Foreign References:
JPH0634029A1994-02-08
JPH02134454A1990-05-23
JPH11257485A1999-09-21
JPS63151315U1988-10-05
JPH01114324U1989-08-01
JP3388594B22003-03-24
JP2006323029A2006-11-30
Other References:
See also references of EP 2101088A4
Attorney, Agent or Firm:
NAGAI, Fuyuki (2-1-1 Uchisaiwai-cho, Chiyoda-ku, Tokyo 11, JP)
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