Extendible gripper
US5152568A · kind A · utility
Inventor
Key dates
| Filing date | Jan 24, 1991 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Jan 24, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25J15/022
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A fluid pressure actuated gripper including a fluid pressure actuated motor including a cylinder and a piston with the piston being fixedly mounted by a purality of support rods upon a fixed base. The support rods are slidably and sealingly received in the rear end wall of the cylinder and passages through the support rods are employed to conduct fluid under pressure to and from the opposite ends of the piston chamber. A piston rod projecting from the front end of the cylinder is pivotally coupled to linkage operatively connected to gripper jaws pivoted on extensions of the cylinder. In operation, the piston remains stationary and movement of the cylinder relative to the piston is employed to open and close the jaws. The jaws are carried upon pivots which move horizontally with the cylinder, hence horizontal displacement of the jaws relative a fixed reference point is substantially increased as compared to grippers in which the jaw pivots are stationary during operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.