US2688829A - Apparatus for wrapping ribbons, laces, and other materials - Google Patents

Description

Sept- 954 G. GEFFROY ET AL 2,688,829

LACES, AND OTHER MATERIALS APPARATUS FOR WRAPPING RIBBONS,

2 Sheets-Sheet 1 Filed Jan. 2, 1952 Snnentors GEORGES 654 790) PAW. I/ANE? Gttorneg P 1954 e. GEFFROY ET AL 2,588,329

APPARATUS FOR WRAPPING RIBBON-S, LACES, AND OTHER MATERIALS Filed Jan. 2, 1952 2 Sheets-Sheet 2 I N V E N TO R S Gfaeafl GEFFAO) PA a; M/VET Patented Sept. 14, 1954 APPARATUS FOR WRAPPING RIBBONS, LACES, AND OTHER MATERIALS Georges Geffroy and Paul Vanet, Paris, France, assignors to La Cellophane, Paris, France, a

French company Application January 2, 1952, Serial No. 264,616

Claims priority, application France January 4, 1951 1 Claim. 1

This invention relates to an apparatus for wrapping ribbons, laces and other materials in narrow strip form.

It is well known to wrap products of various kinds in the thin film materials, e. g. of regenerated cellulose, such materials serving not only to protect the products, but also to impart tothem an attractive appearance which is of assistance in promoting sales.

Ribbons of textile material or of lace are generally supplied on spirally wound reels from which the retailer winds off and measures the length required by a customer. Since they are unprotected, such ribbons tend to become soiled and lose their value while they are being sold or While they are being handled by the customer up to the time of their use.

It is an object of this invention to provide a method of presentation of ribbons, laces and other narrow strip materials and to provide apparatus for carrying such method into efiect.

According to the present invention ribbons, laces and other materials in continuous strip form are wrapped in an envelope of film by a process which comprises feeding a continuous strip of film towards an assembly point, the said strip of film being of width sufiicient when folded to surround the strip material which is to be wrapped, folding said strip of film, laying said strip material within the said folds at said assembly point and sealing the edges of said strip of film, the said steps being carried out as a continuous operation.

The invention will be better understood from the following description taken in connection with the accompanying drawings in which one embodiment thereof has been set forth for purposes of illustration.

In the drawings:

Fig. 1 is a sectional view illustrating the wrapped strip material;

Fig. 2 is a diagrammatic view illustrating one form of apparatus for carrying out the invention;

Fig. 3 is a detail view of the apparatus on a larger scale;

Fig. 4 is a detail view of the strip and ribbon at the folding station; and

Figs. 5 and 6 are sections similar to Fig. 1 showing intermediate stages in the folding operation.

Referring to Fig. 1 of the drawings, the ribbon or the lace I is shown in enlarged section. The ribbon l is enveloped by a film having a line of gum or adhesive 3 which ensures the tightness or the firm hold of the wrapping.

Fig. 2 shows by Way of example, and without any limiting effect, a machine capable of carrying into practice the continuous wrapping of ribhons in accordance with the diagram of Fig. l. The spool 4 of film, for example, a film of regenerated cellulose, unwinds as shown at 5 and passes over an idler roller 6, the hub of which is of small diameter and has two flanges, the distance apart of which is only very slightly greater than the width of the film. The film then passes round a rubberized roller I which is braked by means of a suitable tensioning device (not shown) which brings the tension to a suitable value. The friction is adjustedso that the roller 1 is driven without slipping of the film. 'Ihe film, after passing over an idler roller 8, the purpose of which is to increase the winding are on the roller I, is adapted to contact at 9 a driven gumming roller Ill, which takes up at its. periphery a thin layer of gum supplied from the container II. The film, thus provided with gum, is driven by the roller I2 and passes beneath the fixed guide I3, the width of which is slightly larger than that of the ribbon to be wrapped. The effect of guide I3 is to fold over the edges of the film as shown in Figs. 3 and 4.

The ribbon to be wrapped, coming from a spool I4 is unwound as shown at I5 and positioned by means of a flanged roller I6. The ribbon follows the path II, I8, l9 beneath the guide I3, as shown in Fig. 4 to a much larger scale; lateral projections 20 formed on the guide I3 ensure a correct placing of the ribbon; it then moves with the film, the edges of which are folded over on to it in accordance with the successive stages indicated in Figs. 5, 6 and 1. The edges of the film are progressively folded over between the fixed guide I3 and the roller 2| is indicated in Fig. 4, using a folder F if desired to fold the ribbon, the folding being completed at the moment when the assembly consisting of film and ribbon is passed on to the roller 2|. A second roller 22, surfaced with soft rubber, presses on the assembly for the purpose of shaping and ensuring the sticking and then the ribbon, thus wrapped, leaves at 23 and is spooled at 24 on to a core 25 driven by a friction drive.

The driving motor 26 operates a reduction gear, the base of which can be seen at 21; the pulley 28, keyed to the output shaft of the reduction gear, drives the gumming roller II), the rollers I2, 2|, 22 and also the frictional winding gear by means of a chain or belt (not shown).

The film employed may be of regenerated cellulose, cellulose acetate or other cellulose derivative, rubber hydrochloride or any other of the well known film materials. The gum or adhesive may be applied as a continuous line, as above described, or may be applied intermittently as a succession of dots. It is advisable to use a gum having a low degree of adhesion, though of course sufiicient to maintain the structure during normal handling, to facilitate removal of the film wrapping by the user.

When the film is thermoplastic the use of gum may be dispensed with, the edges of the film being sealed by heat or a high frequency electric field. Heat sealing may be effected by makin roller 22 of metal and heating it, the roller 2| then being rubber-surfaced. Regenerated cellulose films having a thermoplastic varnish coating to increase their impermeability may be used with advantage as they serve to protect the ribbon or like product from changes in atmospheric humidity.

The film may be transparent, translucent, colorless or colored, corrugated, printed, or may have any one of the many appearances which it is known can be given to films. In particular, the film may be pre-printed with various markings or with a graduated scale for simplifying the calculations by the sales assistant or the user.

Moreover the film may contain substances absorbing activic radiations. e. g. ultra-violet radiations, which would affect the quality or color of the wrapped materials.

Further, there may be introduced within the wrapping a separate strip of film, paper or metal foil 30 which modifies the appearance of the wrapped product, this insertion being transparent or opaque and printed or decorated in any manner. When the invention is applied to the wrapping or lace it is desirable to lay such an insertion 30 on top of the lace before the assembly passes the sealing device so that the lace is prevented from rubbing directly on said device, and its configuration is substantially maintained against deformation.

What is claimed is:

Apparatus for wrapping ribbons, laces and other materials in continuous strip form in a protective film which comprises a fixed guide member having a surface under which the strip material passes, said surface terminating in a forwardly tilted lip corresponding in width to the width of the strip material, said guide member having guide flanges extending downwardly on both sides of said strip material for positioning said strip material as it passes under said surface, means continuously feeding said strip material under said surface, means continuously feeding a webof said protective film under said strip material as it passes under said lip with its marginal edges extending laterally on both sides beyond said lip to be folded thereover, means folding said marginal edges of said web upwardly as they pass said lip and then inwardly to overlap over said strip material, means applying an adhesive to one marginal edge of said web, and means continuously pressing the overlapped marginal edges of said web together for sealin the same.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 797,378 Schubert Aug. 15, 1905 940,873 Hanrath Nov. 23, 1909 1,015,000 Cahn Jan. 16, 1912 1,905,392 Freydberg Apr. 25, 1933 2,095,910 Bergstein Oct. 12, 1937 2,146,308 Maxfield Feb. 7, 1939 2,203,822 Hyman June 11, 1940 2,226,442 Rumsey Dec. 24, 1940 2,280,405 Frostad Apr. 21, 1942 2,298,363 Ganz Oct. 13, 1942 2,458,971 Wilson et al Jan. 11, 1949 2,549,122 Osterhof Apr. 17, 1951

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