Blade housing lift for riding mower
US4307561A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1980 |
| Grant date | Dec 29, 1981 |
| Priority date | — |
| Expiry date | Jan 23, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2034/645
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The riding mower (10) includes a prime mover (12) and a cutter blade housing (28) mounted on the prime mover (12) for pivotal movement between a lowered mowing position and a raised non-mowing position. The blade housing (28) is moved between the mowing and non-mowing positions by a flexible member (56), such as a chain, having a first end (58) connected to the blade housing (28) and a second end (60) connected to the prime mover (12) and a fluid-actuated cylinder (64) including a piston rod (66) carrying an arcuate element (68), such as a pulley, which engages an intermediate portion (62) of the chain (56) and lifts it in response to extension of the piston rod (66). The chain (56) is maintained in tension and in engagement with the pulley (68) at all times by a spring-biased arm (70) pivotally mounted on the prime mover (12) and connected to the second end (60) of the chain (56).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.