Expansible shaft with actuator retaining member and spherical bearing surface
US4469288A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1983 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Feb 28, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D1/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An expansible shaft with an actuator having a bore through which the operating rod extends, and, adjacent one end of the actuator, a surface inclined relative to the rod which at least partially defines a recess extending radially outward of the bore. A retaining member is mounted in a recess in the outer surface of the rod in position for engaging the surface of the actuator recess so that, when the actuator is forced relative to the rod towards the retaining member, interaction between the retaining member and the surface of the actuator recess causes application of a radially inwardly directed force on the retaining member. A bearing surface at one axial end of the operating rod is defined by a portion of the exterior of a sphere and a drive screw engages and is arranged to apply force to the bearing surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.