Sanding apparatus with an improved vibration insulating mechanism
US6447383B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2000 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Dec 5, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B23/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A finishing orbital sander (1) includes a main body (2) and a base (12) provided below the main body. Provided between the main body and the base are a plurality of foot assemblies (22). Each assembly in turn includes a cylindrical or columnar foot (23) made of aluminum and a pair of rubber O-rings (25) at both ends of the cylindrical foot. Each foot additionally includes reduced diameter sections (24) at both ends, where the O-rings are disposed. The reduced diameter sections (24) are fitted in the O-rings and placed in recessed seats (26) provided in opposing surfaces of the main body (2) and the base (12), thus elastically supporting the aluminum feet (23) in the axial direction thereof. The axial dimension of each reduced diameter section (24) is made no longer than the thickness (i.e., the axial dimension) of the O-ring (25), so that the tip end of the reduced diameter section does not exceed or project from the axial outermost end of the O-ring. The foot assemblies (22) can effectively counteract vibration occurring in the axial direction of the feet (23) and reduce vertical vibration of the base (12) while facilitating a smooth orbital motion of the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.