Gripper for a conveying device for conveying single-sheet or multi-sheet printed products
US5395151A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 29, 1993 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | Nov 29, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H29/003
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A gripper includes two gripper parts. The first gripper part is arranged pivotably relative to the other, second gripper part. The two gripper parts interact to securely hold a printed product at the free ends of the gripper parts. The first gripper part is mounted by a ball joint in a bearing part, which is seated unrotatably on a rotatably mounted hollow shaft. A compression spring is mounted in the first gripper part between the bearing part and the first gripper part, which is spherically mounted in the latter. The compression spring in the closed position of the bearing part exerts a compressive force on the first gripper part. The ball joint is offset rearwards with respect to the pivot axis of the bearing part. As a result, a rearward lengthening of the leg of the first gripper part is attained. This results in more favorable leverages and, with a given compression spring, accordingly results in higher clamping forces at the free end of the first gripper part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.