Title:
TILT CYLINDER CONTROLLER FOR INDUSTRIAL VEHICLE
Document Type and Number:
Japanese Patent JP3794125
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To easily perform the tilt motion of the forward tilting with high height, by controlling a solenoid valve in such manner that the forward tilting speed is lowered after a mast reaches a regulated forward tilting angle which is operated on the basis of the height and the live load, in the forward tilting motion of the mast.
SOLUTION: When an ON signal of a forward tilting detection switch is inputted to CPU, a forward tilting angle control program is executed. First of all, CPU operates a regulated forward tilting angle θL corresponding to the live load and the height of a fork. Further a mast angle (tilt angle) θi is also operated (S1). Then whether the mast angle θi is more than the regulated forward tilting angle θL or not, is judged (S2). When the mast angle θi is more than the regulated forward tilting angle θL, the command current value to a proportional solenoid valve is controlled to be I2 (S3). As the result thereof, a tilt cylinder is driven at a specific speed which is remarkably lower than an ordinary speed, whereby the mast is forwardly tilted at a low speed.
Inventors:
Kamiya Toshikazu
Application Number:
JP25370297A
Publication Date:
July 05, 2006
Filing Date:
September 18, 1997
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
International Classes:
B66F9/22; B66F9/24; (IPC1-7): B66F9/24; B66F9/22
Domestic Patent References:
| JP57062797U | ||||
| JP7242398A | ||||
| JP8091793A | ||||
| JP58012600U |
Attorney, Agent or Firm:
Hironobu Onda