DE102007002368A1 - Plastic case i.e. bottle case, has strips formed with same color as plastic material of base body in lateral edge regions and adhesively connected with plastic material for forming strap by injecting plastic - Google Patents

Abstract

The case (1) has a case base and successively arranged side walls (3-6), where the case is produced from two plastic materials with different colors by injection molding in an injection mold. A strap (9) running over the side walls is formed from plate/band shaped strips (10, 11) in the injection mold. The strips are formed with same color as one of the plastic materials of a base body (15) in lateral edge regions, and are adhesively connected with the plastic material for forming the strap by injecting the plastic. Inner surfaces of the side walls are formed of thermoplastic elastomer.

Description

The The invention relates to a box made of plastic, in particular a Bottle crate according to the preamble of claim 1

It is known, bottle crates with a circulating so-called labeling tape by a so-called in-mold labeling produce, which means that in the injection mold for the production the bottle crate plate-like strips are inserted, which then with injection molding of the box body by heat fusion firmly, d. H. one piece get connected. However, the production of such peripheral Etikettierbänder very complicated, since these plate-like bands are extremely thin, namely have a thickness in the range of 50 to 300 microns. Scratches on this plate-like stripes that never move during transport and handling of the crates avoid it altogether, are special in this band area clearly visible. In particular, the box corner areas are scratched while transport and handling of crates. There is a problem but also in the embedding of the band or the plate-like strips at the top and bottom in the body of the box.

task The invention is a box, especially bottle crate, made of several materials, at least two plastic materials is to make that the circulating band in a safe way attached, produced in a simple manner and in particular also scratch-protected is.

These The object is achieved by the in claim 1 mentioned features, wherein expedient developments the invention characterized by the features in the subclaims are.

To proviso According to the invention, the box is made of a base body produced by injection molding a first plastic and in particular a base body in gray, gray-silvery or syllabic color, and is present on its outer surfaces one preferably over all four side walls provided circumferential tape. This is in accordance with the invention of several, in particular of four inserted in the injection mold plate or strip-shaped strips educated. These are at least in the lateral margins, but preferably in the entire range, with substantially the same Coloring formed as the first plastic of the body, ie in preferred use case gray, gray silver or silver. These plate-shaped or band-shaped Strips are then formed by injecting the main body first plastic with this cohesively and thus in one piece to Formation of the circulating band connected. The basic color is preferred the stripe is color coordinated with the color of the main body and that's true they preferably substantially coincide. In an advantageous way can the strips are pulled into the corner areas of the box, have to but not, so at a gap between the strips in the corner, the outer surface of the box formed by the body which is less prone to scratching is more elaborate than that to be produced plate-shaped or ribbon-like strips, which are made very thin as Auflegeeteil be and regularly too covered with a varnish layer are. Turned off on base color also means that the stripes can be designed in transparent color, so that then the color of the basic body, gray, silver or silver, shining through. Especially In the critical edge area, so to speak, a scratch protection be achieved that in the corner of the body, the outer surface of the box in the band area forms, so between the strips a gap exists. Thereby become the remaining band ranges, which are formed essentially from the plate or band-shaped strips virtually protected against scratches, especially if these stripes are not going too far in the Extend corner area.

in this connection it is useful if the strips in the corner area on a gap to each other in the range of less than 2 mm, in particular 0.5 to 2 mm are arranged to each other. Furthermore, it is expedient the stripes on its outer surface with Coat matt varnish. The printed areas of the tape can with Gloss paint, in particular be coated with metallic effect. It is also possible the strips with a brushed Structure to provide, in particular the box edges in the edge region with a brushed Structure to provide.

The tapeless areas of the outer surface of the Boxes are made to specification the invention after converting the box into a second injection mold formed and indeed with a second plastic, a different Color to the main body having. It is expedient that the coating with the second plastic the tape or the plate or band-shaped Strip overlaps or covered, which protects the border areas are. The coverage area the strip is formed without paint, so without painting provided, but expediently coated with a primer or primer to a good and secure bonding with the subsequent coating of second Plastic care.

In a further embodiment of the invention, the upper box edge end face is completely coated throughout with the second plastic. This is done by inner support body in the two th injection mold, which should stabilize the upper box area. Normally, these supports lead to openings in the upper box edge end region, which, however, according to the invention are completely covered by the second coating in the area of the box edge end face. This also results purely optically a very pleasing design of such a box with multi-color structure.

To In a further aspect of the invention, it is expedient that the sidewall inner surfaces and / or compartment walls coated in the Flascheneinstellbereich with an anti-slip agent are and preferably with a thermoplastic elastomer. This coating can be provided in areas or over the entire surface be. Alternative or supplementary to this coating can certain areas of the side wall inner surface and / or the compartment walls with studded or ribbed projections u. Like. Be provided from non-slip material and in particular from a thermoplastic elastomer. It is useful if this is crushable and has a memory effect, so that after removing the bottles, these projections back to their original position spring back.

following becomes a preferred embodiment the invention described with reference to the drawings. Show in it

1 a perspective view of a bottle crate with a center handle,

2 a perspective top view of the bottle crate according to 1 .

3 a perspective view of the bottle crate from below as well

4 a schematic sectional view in the hand area of a provided on the outer surface of the bottle crate circumferential band.

1 shows a perspective view of a bottle crate 1 with an in 3 box bottom shown in detail 2 and four circumferentially arranged side walls 3 . 4 . 5 and 6 , In the two opposite narrow side walls are common handle openings 7 educated. Furthermore, the box has 1 via a central center handle 8th which is by no means compulsory but is presented only for illustration.

Approximately in the area of the middle of the sidewall, a circumscribes 9 designated band the outer surface of the box 1 and extends over all four side walls and the four corner areas of the box.

The production of the bottle crate takes place in a first injection mold, in which the body of the box 1 is formed. This base body is made of a first plastic material, which is preferably formed from gray, silver or gray silvery color. At the same time as the production of the basic body, the production of the circulating band takes place in the manner of an in-mold label. For this purpose, plate-shaped strips are used in this first injection mold, so that they are integrally bonded during injection molding of the plastic body of the first plastic material and thus integrally connected to the body by heat fusion to the circulating belt 9 to build. Here, the plate-shaped strips are formed from a color and that of a base color, which coincides in color with the plastic material of the body. In 1 are illustrative only the two plate-shaped strips 10 and 11 shown for the fully displayed side walls. The plate-shaped strips 10 and 11 Here are something in the corner before, with the lateral edges of the plate-shaped strips in the corner with 12 are designated. Normally, in the case of an in-mold label, the plate-shaped strips are not led too far into the corner area, so that adjacent strips are arranged on a gap of approximately 10 mm. In the present case, however, the gap is selected to be correspondingly small and is in a range of ≦ 2 mm, particularly preferably 0.5 to 2 mm. Ie. the neighboring edges 12 the neighboring strip 10 and 11 are arranged on a gap in the width range of ≤ 2 mm. Ie. the plate-like strips can go far into the actual and especially scratch-prone corner and edge area of the box 1 extend into it. Since the basic color of the strips substantially coincides with the color of the first plastic material of the base body, this gap is harmless since the color of the base body is present in the corner region. In a preferred application, the base color is the stripes 10 . 11 and with it the volume 9 gray, gray silver or silver and is also the body of the box 1 made of gray, grayish silver or syllabic color, so that from the outside is practically not evident that the the band 9 mitbildenden plate-shaped strips are set to considerable gap in the edge region or in the corner area. From the outside is the tape 9 as with the same color. It should be noted that the plate-shaped strips are formed from very thin plates in the thickness range of 50 to 300 microns and also because they are intended for presentation purposes, in particular as a label u. Like. Serve, so record the instructions for the bottle manufacturer and / or content, coated with paint. The paint coating but also by the thin training generated scratches are much clearer than it would be the case with scratches in the body. The fact that the plate-shaped strips are not so far in the Eckbe are drawn in rich, but in the true sense is prone to scratching, when handling for handling purposes adjusting scratches form on the body and not on the plate-shaped strip, so that thus an outwardly visible scratch protection is formed. It should be noted that due to the same color, the eye visually does not perceive the difference between the strips coated with matt lacquer and the base body present in the corner area when viewed only. It should also be noted here that the corner areas threatened and endangered by scratches are essentially the areas of the box. So that can be accomplished by a very effective and simple measure quasi a scratch protection, because in the corner resulting scratches focus on the body where the scratches do not appear as clearly as would be the case with a scratch in the coated strip.

As stated, the outer surface of the strips 10 . 11 coated with matt paint, but in the preferred application, those areas of the tape that are printed, such as a coat of arms or the brewery, can be coated with gloss paint, in particular a metallic effect bewerk is stelligt so that the printed letters or symbols, so to speak look sublime in the context of a three-dimensional effect.

Around To increase this Quasikratzschutz even it is also appropriate if especially the wall surfaces in the corner area with a brushed structure be provided. This brushed Structure can also be over the strips extend in total.

After preparation of the main body with the gang 9 This body is converted into a different injection mold, in which case the strip-free outer surfaces of the box 1 that are the ones with 13 and 14 designated upper and lower edge surface with a second plastic material having a different color, such as green color, are coated, which takes place by spraying the second plastic onto the base body. Here's how out 1 also visible the upper box edge end face 15 throughout the entire surface with a second plastic material, about in the color green, coated. This is achieved by ensuring the support of the upper box edge region in the second injection mold by internal supports in the second mold. On the front surface of the box edge then the coating is sprayed over the entire surface.

Also, the center handle, as in 1 is shown is formed in two colors. In particular, a softer material is applied by coating in the region of the handle to facilitate the transport of the box.

4 schematically shows the coating of the body, here with 15 is designated. The label or the strip 10 is here flush in the body 15 embedded and applied in the second injection mold coating of the second plastic material is with 13 designated. To overflow the second plastic material in the visible from the outside areas of the band or strip 10 To prevent for the second injection process here only partially dargstellter rotating punch 16 from the outside on the strip 10 put on, leaving a selective boundary of the coating 13 is guaranteed.

In the overlap area between the coating 13 and the strip 10 who is here with 17 is designated, is the strip 10 without paint application, so paint free. In this area, a primer, that is to say a bonding agent, is expediently provided in order to ensure a good connection of the area 13 made of second plastic also with the band 9 or the strip 10 to ensure.

In the bottle setting areas of the box 1 passing through the sidewall inner surfaces and through the 2 apparent compartment walls 18 are formed, a coating with a slip-resistant material, in particular a thermoplastic elastomer is provided to prevent wobbling and rotation of the adjusted bottles. This coating can be provided in the adjustment area over the entire surface or in areas. In addition to this coating or as an alternative to this coating, the compartment walls can be placed in suitable places, as in 2 Illustrated for a compartment wall in a compartment illustratively, with a slightly inwardly projecting nubs 19 be formed, which is also preferably formed of a thermoplastic and thus slip-resistant elastomer, in particular an elastomer which is crushable in a certain sense and thus has a memory effect, so that the knob after lifting the bottle again assumes its original position.

Claims (16)

Plastic box, in particular bottle crate, with a box bottom ( 2 ) and four peripherally arranged side walls ( 3 to 6 ), the box ( 1 ) is made of at least two plastic materials with different colors by injection molding in an injection mold, characterized in that the box ( 1 ) of a basic body produced by injection molding ( 15 ) Is formed from a first plastic and on its outer surface with a preferably over all four sidewalls encircling band ( 9 ), which consists of several, in particular of four inserted into the injection mold plate or strip-shaped strips ( 10 . 11 ) is formed, which is formed at least in the lateral edge regions with substantially the same color as the first plastic of the base body and by injecting the base plastic forming the first plastic with this cohesively to form the circumferential band ( 9 ) are connected. Box according to claim 1, characterized in that the basic color of the strips ( 10 . 11 ) in color with the color of the main body ( 15 ) and preferably substantially coincident. Box according to claim 2, characterized in that the strips ( 10 . 11 ) are formed in gray, gray-silvery or silver color. Box according to one of the preceding claims, characterized in that the thickness of the strips ( 10 . 11 ) is in the range of 50 to 300 microns. Box according to one of the preceding claims, characterized in that the strips 10 . 11 coated on its outer surface with gloss varnish or matt varnish, in particular on the outer surface are formed with a metallic effect. Box according to claim 5, characterized in that the strips are coated with matt varnish and the label areas, So the printed area of the tape, coated with gloss paint are. Box according to one of the preceding claims, characterized characterized in that the strips are provided with a brushed structure, are printed in particular with such a surface structure. Box according to one of the preceding claims, characterized in that the strips ( 10 . 11 ) are arranged in the corner areas of the box to a gap of ≤ 2 mm, preferably 0.5 to 2 mm to each other. Box according to one of the preceding claims, characterized in that the strip-free areas ( 13 . 14 ) of the outer surface of the box ( 1 ) are preferably coated by injection molding after converting the box in a second injection mold with a second plastic, the different coloration to the main body ( 15 ) having. Box according to claim 9, characterized in that the coating with the second plastic is carried out so that the strips edge at the top and bottom of the coating ( 13 . 14 ) are covered. Box according to claim 10, characterized that the stripes in the covering area are free of lacquer, d. H. executed without painting are. Box according to one of claims 10 and 11, characterized in that for the coating with the second plastic, a stamp-like mold ( 16 ) on the strips ( 10 . 11 ) is applied at a distance from the outer edge of the strip, so that the coating ( 13 . 14 ) the Stripes ( 10 . 11 ) overlaps ( 4 ). Box according to one of claims 10 to 12, characterized in that in the covering area on the strip ( 10 . 11 ) a primer is applied. Box according to one of the preceding claims, characterized in that the upper box edge end face ( 15 ) is completely coated throughout with the second plastic. Box according to one of the preceding claims, characterized characterized in that the side wall inner surfaces and / or compartment walls in Flascheneinstellbereich with a slip-resistant material, preferably with a thermoplastic Elastomer provided, in particular coated. Box according to one of the preceding claims, characterized characterized in that partially in Falscheeinstellbereich the shelves and / or sidewall surfaces knob-like or rib-like projections made of thermoplastic elastomer are molded, which the wobbling and / or twisting a bottle set in a compartment.