Device at a conveyor chain
Abstract
Abstract The invention relates to an arrangement for a conveyor chain with identical links (A, B. C). These are mutually operatively connected in such a way that two links (A, B; B, C) arranged adjacent to one another are capable of pivoting relative to one another about two mutually orthogonal axes, of which a first axis is perpendicular to the upper surface (1) of the link. The chain is able in this way both to run over a guide pulley and to follow a curved path. In order to permit flexibility in the curved path, gaps (6) are present between the links (A, B, C), the width of which gaps increases up to a certain limit on the convex side of the curved path, and decreases on the concave side as the radius of curvature of the chain path decreases. Each link (A, B, C) has a recess largely parallel with the upper surface (1) and essentially in the form of a slot. Arranged so as to run in which recess is at least one essentially disc-shaped element (8; 8a, 8b), the purpose of which is to cover the aforementioned gaps (6). As relative rotation occurs between two links (A,B; B,C) arranged next to one another, the increased width of the gap occasioned by the relative rotation is covered through an operative connection with one of the aforementioned links (A, B; B, C), and mutual rotation is permitted between the links.
Inventors
- 👤 Mats Wahren
Bibliographic Details
Claims Analysis
Total Claims: 4References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-09-07 | 2002-03-09 | 2002-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-09-07 | 2006-03-09 | 2006-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-09-07 | 2010-03-09 | 2010-09-08 | $7700.00 | Window Closed / Lapsed |