Expansible sheet metal pulley with mannual detent adjustment means
US3961538A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1974 |
| Grant date | Jun 8, 1976 |
| Priority date | — |
| Expiry date | Sep 23, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H55/56
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An adjustable pulley of the split-sheave type is formed of stamped sheet metal and is retained assembled by a Belleville spring engaging deformations on one sheave part and a tang struck from the other sheave part. One sheave part has a plurality of cam seats facing a mating portion on the other sheave part, the latter having a plurality of cam surfaces of varying heights thereon. The cam surfaces are deformed areas projecting a predetermined distance toward the cam seats. Rotation of one sheave part to position particular cam surfaces upon the cam seats places the sheaves a predetermined axial distance apart establishing a predetermined effective belt groove width permitting use of various belts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.