Compact speed-reducing universal motor drive assembly arrangement for food processor
US4285473A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1979 |
| Grant date | Aug 25, 1981 |
| Priority date | — |
| Expiry date | Jun 11, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19684
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An improved drive unit for a food processor of the type wherein the drive unit is enclosed in a base housing and has a vertically extending spindle which extends into a processing bowl and carries rotary tools thereon. The drive unit comprises a horizontally mounted universal motor carrying a pinion gear at the end of its shaft. A ring gear meshes with the pinion and encircles the motor on a concavo-convex support structure. The support structure is coupled to the vertical spindle. Included in the drive unit are a novel three point shock mounting for the motor and an automatic brake to prevent coasting of the tool after the motor is deenergized. In a further embodiment of the drive unit the motor and the concavo-convex ring gear are held in a motor mount which is vibrationally isolated from the base housing for providing quieter operation. This mount arches up over the dome of the ring gear which in turn arches up over the motor. A lockable adjustment is provided in the motor mount for adjusting the engagement between the pinion gear and ring gear, and another form of automatic brake is shown.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.