Part indexing and positioning apparatus
US4942956A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1988 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Dec 30, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G49/025
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A series of rigid I-beams are secured to the underside of a driven endless looped chain and supported by a leading trolley and a trailing fixed connector. The chain is supported in a track by trolleys. End hooks on the beam support a load crossbar. A drive and brake assembly includes a reciprocating drive unit having a rail with a drive member sliding therein. The rail is mounted adjacent the chain and includes an inverted U-shaped arm pivotally mounted with the rail at one end. The slide has coupling fingers spaced in accordance with the chain links. A cylinder is coupled to the rail support and pivots the rail and slide member to selectively engage the chain link. A brake member secured to the U-shaped arm opposite side of the rail and has locking fingers spaced corresponding to the chain links. Pivoting of the rail to engage the slide member disengages the brake member to move the chain unit. Alternately, the brake member is engaged and the drive member disengaged and reset with positive alignment to the chain unit. A drive cylinder unit is secured to the rail and coupled to reciprocate the slide member. Alternately, parallel support units are connected by a load carrier for cor…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.