The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 1987
Filed:
Dec. 18, 1985
Paul Opprecht, Bergdietikon, CH;
Othmar Stieger, Kindhausen, CH;
Elpatronic AG, , CH;
Abstract
On a machine for welding together the longitudinal edges (12, 14) of rounded sheet-metal container body blanks there are disposed a plurality of rings (24) of rollers round a common longitudinal axis (22), one behind the other in the direction of passage through (A) of the blanks (10). At least some (28) of the rollers (26, 28) of the rings (24) of rollers are each mounted on a roller carrier (40) which is adjustable in the direction away from the longitudinal axis (22) against resilient resistance. The roller carriers (40) are guided in a manner which enables the associated rollers (28) to execute yielding movements at an angle of distinctly less than 90.degree. to the direction of passage through (A) of the blanks (10). For this purpose, the roller carriers (40) are each pivotable about a transverse pin (42) which is disposed at least substantially parallel to the associated roller spindle (38), upstream of this with respect to the direction of passage through (A) of the blanks (10). This guiding of the roller carriers (40) makes an important contribution to avoiding damage to the leading edges (16) of the blanks (10) and to reducing the noise occurring when these leading edges (16) impinge on the rollers (28).