Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With work feeding or handling means
Patent
1986-08-27
1988-03-15
Czaja, Donald E.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With work feeding or handling means
156544, 156545, 156554, 156556, 271236, 271238, 271240, 271245, 493334, B32B 3104, B32B 3110, B32B 3112
Patent
active
047311509
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
The present invention relates to an apparatus for glueing together two different material layers, of which one is intended to form a first cover in a folder, file or the like, and the other a second cover and/or a spine in a folder, file or the like, there being on said spine a glue strip for binding sheets inserted in the folder, file or the like which are intended to be fastened to the strip, glueing together taking place in an area where the layers overlap each other.
2. Background Art
It is already known to manufacture folders or files of the kind described above by manually inserting a first sheet in a glueing machine, and after the glueing operation, during which one side of the sheet is coated with a glue bead along an edge thereof, manually to turn the sheet and put it with the glued side upwards on a substructure, whereafter a second sheet is manually placed on the substructure while adjusting it relative the first sheet, so that the sheets are caused to overlap each other in the area of the glue bead. The upper sheet is subsequently pressed against the lower sheet in said area with the fingers of the hand, whereafter the thus glued-together sheets are removed from the substructure.
The glued-together sheets are then placed in a machine, e.g. of the kind illustrated in the U.S. Pat. No. 4,367,061, for providing the part of the first sheet which is to form the spine of the finished file or folder with a hot-melt glue strip and also to provide creasing lines between the spine and the covers. After the covers have been folded along the creasing lines so that they are opposite each other, sheets may be inserted between the covers and be caused to engage against the hot melt strip on the inside of the spine, and the folder or file being placed on a heated substructure in an apparatus, e.g. of the kind illustrated in the U.S. Pat No. 4,367,116, so that the hot melt glue strip melts and the edges of the sheets adhere to the inside of the spine.
Particularly the handling of both sheets in conjunction with glueing together thereof, is very time-consuming, since a large part of the handling is manual. Furthermore, the manual handling results in a qualitatively relatively poor product being obtained, since the aligning of the sheets relative each other in the glueing area cannot be done exactly, and since the pressing force in this area varies along the length of the glue strip.
DISCLOSURE OF INVENTION
One object of the present invention is at least partially to eliminate the disadvantages with the previously used glueing processes, and to provide an apparatus which carries out the glueing and the work operations associated therewith automatically and with great accuracy.
This object is achieved by the apparatus in accordance with the invention being given the distinguishing features disclosed in the claims.
DESCRIPTION OF FIGURES
FIG. 1 is a schematic plan of an apparatus in accordance with the invention, seen from above, and
FIG. 2 is a schematic side view of a glueing device included in the apparatus of FIG. 1.
PREFERRED EMBODIMENT
The apparatus in accordance with the invention includes a stand 1, upstanding on a floor, and carrying all the parts included in the apparatus. Two magazines 2 and 3 are situated on the input side of the apparatus, one magazine 2 containing a sheaf of plastic sheets and the other magazine 3 a sheaf of paper sheets. The plastic and paper sheets are equally as long in the longitudinal direction of the apparatus, but the paper sheet is somewhat wider than the plastic sheets, since the paper sheet shall not only form a cover in a finished folder or file, but also a spine, which is formed in a later work operation by providing the paper sheet with creasing lines, and folding the sheet along these so that the cover portion thereof will be situated opposite the plastic sheet, which thus forms the second cover which has exactly the same format as the first cover. How the crease lines are formed, how the folder is provided with a glue strip and h
REFERENCES:
patent: 3068501 (1962-12-01), Mcahon
patent: 3314089 (1967-04-01), Margolis et al.
patent: 3361426 (1968-01-01), Pawlikowski et al.
patent: 3694295 (1972-09-01), Nichols
patent: 4518379 (1985-05-01), Eldridge
patent: 4533134 (1985-08-01), Galster
Aftergut Jeff H.
Bind-O-Matic AB
Czaja Donald E.
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