Cutting apparatus with dust discharging
US7223161B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2004 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Aug 12, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B23/028
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a cutting apparatus having a circular blade with a dust discharging unit for, during cutting, discharging chips (dust) within a dust cover covering the circular blade, a pulley is fixed to an output shaft of a power source, and a flat belt for transmitting power to the dust discharging unit is engaged with the pulley. The pulley and the flat belt are covered with an inner cover within the dust cover. The inner cover has a through hole for allowing the output shaft to protrude the inner cover therethrough with a seal made of felt to prevent dust from entering the inside of the inner cover. A surface touching member is provided around an opening edge of the dust cover movable along an axial direction of the output shaft by spring-loading, which automatically reduces the gap between the dust cover and the object to prevent dust from being scattered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.