| US 7,426,811 B2 | ||
| Method and clip apparatus for the closing of sausage-shaped packages | ||
| Max Pargätzi, Gossau (Switzerland) | ||
| Assigned to Tipper Tie Alpina AG, Gossau (Switzerland) | ||
| Filed on Aug. 25, 2006, as Appl. No. 11/509,942. | ||
| Claims priority of application No. 05018562 (EP), filed on Aug. 26, 2005. | ||
| Prior Publication US 2007/0044434 A1, Mar. 01, 2007 | ||
| Int. Cl. B65B 51/04 (2006.01) | ||
| U.S. Cl. 53—417 [29/243.56; 53/75; 53/138.2; 53/138.4; 72/21.3; 72/21.4; 452/48] | 20 Claims |
| 11. A method for the closing of sausage-shaped packing casings by means of clips which are set and closed in a filling-free
region of the casing, the method comprising
moving a first work tool and a second work tool toward and away from one another in order to deform an open clip to a closed
clip;
measuring an effective force between the first work tool and the second work tool;
comparing the effective force to a first threshold value and to a second threshold value set higher than the first threshold
value; and
moving the first and second work tools to complete closing the clip and stopping the moving of the first and second work tools
at a predetermined position if the effective force reaches the first threshold value before the first and second work tools
reach the predetermined position, and stopping the first and second work tools and moving the first and second work tools
apart by a predetermined amount if the effective force reaches the second threshold value before the first and second work
tools reach the predetermined position.
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