Pivotal mounting assembly
US4282962A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 2, 1978 |
| Grant date | Aug 11, 1981 |
| Priority date | — |
| Expiry date | Nov 2, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2043/145
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved pivotal mounting assembly, preferably for use with a centrifugal clutch for pivotally mounting the clutch shoes, has a plastic insert which forms either a sector-like portion of a usual cylindrical-shaped, metallic pivot pin, or a portion of the clutch shoe which forms a pivot pin receiving opening. The plastic insert will have an outer convex surface when forming a part of a cylindrical pivot pin or will have a concave surface when forming a part of the clutch shoe. Preferably the convex and concave surfaces will have arcuate lengths of approximately 120.degree.. The plastic insert provides a low-friction pivotal bearing surface for the clutch shoe, which will absorb many of the forces and stresses exerted on the pivot assembly upon coupling engagement of the clutch shoes with a driven drum. The supporting metal areas of the pivot pin or clutch shoe adjacent the plastic strip provides the mechanical strength for the strip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.