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:
Dec. 06, 1994
Filed:
Apr. 01, 1993
Manfred Waldstadt, Mainz, DE;
Tetra Alfa Holdings S.A., Pully, CH;
Abstract
A description is given of an apparatus for folding in the front face of a pack (1, 1') made of cardboard coated with plastics material, the front face of which pack is quadrangular in the plan view in the folded in condition and has a transverse sealing seam (5) which can be folded over, having a fold member (b) and a companion fold member (a), which are both driven movably along specific paths of movement by at least one lever mechanism (8-13), and amongst which a conveyer is arranged at a spacing away in the Y-extent, which conveyer moves the packs (1, 1') in the X-extent, wherein the Y-axis is vertical to the X-axis and the zero point of the axes (X, Y) is disposed in the end fold position of the two fold members (a, b) so that the bottom of a pack can be folded in one single step without any subdivision into pre-folding and re-folding steps, and so that no component parts of the machine engage in the pack, preferably not even over the open pack, it is provided that a Y-Z-plane extending in the Z-extent is disposed in the Y-axis and is intersected vertically by the X-axis, that the paths of movement of both fold members (a, b) extend symmetrically to each other relative to the Y-Z-plane, wherein the paths of movement in the X-Y-plane is described as a superposing of a translatory movement and a rotational movement of the respective fold member, that each fold member (a,b) is secured to a connecting lever (12) which is driven in a controlled manner, that arranged symmetrically to the zero point of the two axes (X, Y) is a centering device for the pack, and that the space for the folding in device is free of structural components above the centering device.