Tilting speed controlling apparatus and method for industrial vehicle
US6425728B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2000 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | Aug 16, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F9/22
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tilt speed control apparatus for fork lift comprises a mast pivotally supported on a body frame. A fork is supported by the mast. The fork is lifted and lowered and is constructed to carry a load. A pump sends hydraulic oil to a tilt cylinder. A motor drives the pump. A lever is actuated to tilt the mast. A controller detects that the lever has been actuated. The controller produces a signal relating to the height of the load carrier. When the controller detects that the lever has been actuated, the controller controls the motor according to the signal such that the speed of the motor is relatively low when the position of the fork is relatively high. This permits a tilting speed controlling apparatus that optimizes the tilting speed of the mast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.