Motorised truck with tiller
US9586797B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 4, 2012 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Oct 15, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F9/065
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A motorized truck with tiller such as a pallet carrier or forklift truck has a tiller-controlled steerable wheel 14 which is steered by a motor having an associated steering motor controller. The steering motor controller in a normal mode of operation detects movement of the tiller as it is rotated relative to the chassis to steer the truck, and outputs control signals to cause the steering motor to steer the wheel such that it follows the tiller angle with a fixed, predetermined offset (which may be zero or non-zero). In a realignment mode of operation, the controller can change the predetermined angular offset, and the controller can preferably align the wheel with the tiller or with an axis of the chassis. The truck can be maneuvred more easily into and out of tight spaces with the operator and tiller offset to the side of the truck. The tiller can also be offset manually from the wheel by decoupling the tiller and wheel, and thereby changing the predetermined offset for subsequent operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.