Mechanical drive assembly incorporating counter-spring biased, radially-adjustable rollers
US5860324A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 1996 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Nov 8, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19902
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An anti-friction nut for engagement with an elongate shaft-like member having a groove with opposed walls. The nut body has an axial bore which is adapted to receive the shaft-like member, and a radial bore communicating with the axial bore. The radial bore carries an anti-friction roller mounted by means of two back-to-back ball bearing assemblages. A nose portion of the roller extends into the axial bore and engages one wall of the groove of the shaft-like member. There is a spring in the radial bore which engages the outer race of the inner ball bearing assemblage, and effectively biases the roller in a radially outward direction, away from the shaft-like member. A threaded adjustment plug in the bore engages the outer race of the outermost ball bearing assemblage, to effect adjustable movement of the roller in radial directions, against the action of the spring. Reduced looseness and backlash are realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.