Working vehicle
US8220582B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2010 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Oct 1, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20018
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A working vehicle includes a HST, forward and reverse pedals, a brake pedal, an intermediate link mechanism (ILM) operating in linkage with operation of the forward or reverse (F or R) pedal, a single shift rod receiving the operation from the ILM and rotating a trunnion shaft of the HST to a forward drive side and to a reverse drive side, a neutral return mechanism (NRM) having a cam plate rotating integrally with the trunnion shaft and forming a curved surface portion, a roller moving in contact with the curved surface portion, a lower return arm configured integrally with a return arm that includes the roller, and a first spring acting in a direction of returning the trunnion shaft to a neutral position, a lower return arm onto which the first spring is latched, a F pedal onto which is latched a second spring acting in a direction of returning the trunnion shaft to the neutral position when depression operation of the F or R pedals is not being performed, an ILM including a damper applying a resistance to movements of the F or R pedals, and the NRM disposed between a rear wheel and a fender of the working vehicle in side view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.