DE6806402U - SYNTHETIC FILM OR HOSES, IN PARTICULAR FOR PACKAGING MATERIAL AND FOR PROTECTING OVERALL OBJECTS. - Google Patents

Description

PATENT LAWYERS DIpI. Ing. E. Eder Dipl. Ing. K. Schleschke

iuinchen, March 8, 1972 6482 II / as

Acc .: G 68 Ö6 402.8

Note: xukio Nishikawa, Japan

; Synthetic resin foils or tubes, especially for packaging material, as well as for protecting objects ,

The innovation relates to synthetic resin foils or hoses, in particular for packaging material, as well as for the protection of objects, with arranged on one side, straight stiffening ribs.

is already plastic films in the form of cover material known from thermoplastic synthetic resin, in which stiffening webs running parallel to one another at equal intervals are molded. Liese btege consist of The same material as the synthetic resin tape, they are removable educated. This gives the resin foils in addition to an increased tensile strength, a large one Stiffness, however, it is required to be light Winding up the / olien to ensure that the stiffening cores are removed before winding or when Spread out the .folien to insert again, which is time-consuming and cumbersome. 2r hoses is this well-known

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For example, training is not applicable at all. Furthermore, the production of these known synthetic resin films expensive.

As the state of the art, plastic films are still in Known tubular shape, which is used for packaging purposes for protection be used by objects in which the inner surface the i'olie is provided with a number of ribs. This plastic film is also relative in terms of production expensive, so that the overall cost of the packaging disadvantageously increases.

The state of the art also includes a plastic pick for covering ship cargoes, in particular hatches, the outside of the it-lane with a heavily profiled Karbung is provided. This profiled advertising on the surface of the plastic tarpaulin is intended to reduce the risk of hatching Reduce walking on the llane in damp weather. As packaging material this tarpaulin is not suitable. Furthermore, there is the coloring present on the outside of the I'lane not comparable with the stiffening ribs of the type mentioned in terms of the mode of action.

Also known as prior art is a wall and wall reinforcement for plastic containers, with reinforcement strips made of less elastic plastic than the rest of the plastic container being partially or completely encapsulated on the container wall or on the bottom. However, this requires special devices in order to be able to encapsulate the butts. This makes the production of the plastic containers more expensive overall and a certain amount of production effort is required in order to create an optically perfect structure. On the other hand, however, this results in a disadvantageous increase in the overall costs.

The task of the present innovation is now to avoid the aforementioned Hachteile and synthetic resin films,

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respectively to create hoses that are both in use 3 arising demands are grown, as well as easily be handled know, with a cost-saving production is to be achieved.

This object is achieved according to the invention in that the ribs made of a synthetic resin of greater strength on the Cberseite the foils or the outside of the hoses are molded. As a result, the synthetic resin films or hoses advantageously have high strength or too great rigidity; As a result, the foils are easy to roll up without forming a too large roll, while the tubing is used as a container for liquid or solid substances against external pressure loads are very resistant. The production of such synthetic resin films or tubing does not require any special effort.

The innovation is shown in the following on the basis of the drawing illustrated embodiments described in more detail. In the drawing show:

1-9 perspective views of various exemplary embodiments the foils according to the innovation;

Figures 10-15 are perspective views of various types renewal hoses;

16 and 17 are perspective views of an inventive innovation Thickening device;

18 is a side view in longitudinal section showing a further exemplary embodiment of a manufacturing device shows;

19 is a sectional view taken along line 1-2 in Fig. 18;

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Fig. 2C is a side view in longitudinal section, which also shows a further embodiment of the manufacturing device shows;

21 is a view in section along line 3-4 in Fig. 20.

In Fig. 1, an embodiment is shown in which a number of ribs 12 in rows on the surface of a film

11 are formed, which are made of soft ivun ^ th resin, such as soft Vinyl resin, polyethylene, etc., or made of hard ^ unstableζ, such as hard vinyl and the like, or made of semi-hard synthetic resin.

The soft materials are used as packaging films or Bags, chair covers. Protective films for the cultivation of agricultural products Products as well as waterproof foils for laying under roofs or floors of buildings. jJie tilt

12 are used for reinforcement; When used as waterproof films, the tilts 12 have the effect that they, if necessary Prevent water that has penetrated from spreading to other parts.

Hard or semi-hard foils are also used as waterproof materials for buildings, and are also used as decorative Materials used for buildings because of their favorable coloring.

Fig. 2 shows a number of ribs 14 which are in neither of the two Surfaces of the soft, hard or semi-hard synthetic resin film

13 are formed. The effect of the iiippen 14 is greater than those at the hip 12.

Fig. 3 shows an Au., ^ Ührungsbeispiel, with "'elchem one Number of longitudinal ribs 16 and transverse ribs 17 are provided crossing each other on the surface of a synthetic resin sheet 1S. In this case too, the foils can be made of soft, hard and semi-hard materials. These slides are

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especially characterized by their high residue levels in -uingsrichtung as well as in transverse direction, as the sips 16, 1? are provided in both seals.

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he embodiment according to rig. 3 result in depths 15 'independently of one another between the tilters 16 un :: i ~, so that if the film of FIG. 3 as a cover or cover is used for a chair, for example, the exposed parts of the user's body, for example Arms and the like are supported on the butts 15, 17 and never in direct contact with the j'olie 15 itself come, which is why such a film even at high summer temperatures can be used. In addition, such a film can be useful as a protective film with access to air for the Cultivation of agricultural products can be used when there is a ventilation opening in the putty of each recess 15 'is provided.

.Big. 3 shows an embodiment in which the Ribs 16, 17 cross each other at right angles. However, there are also other crossing possibilities. Furthermore can the ribs 16, 17 can be provided both on the viewer side and on the rear side of the film, the .Ribs 16 on the surface and the butts 17 on the other Side of the slide.

Fig. 4 shows an embodiment in which a Number of butts 19 zigzag on the surface of a soft, hard or semi-hard synthetic resin film 18 is provided. Due to the zigzag tilting 19 of the film 19 a greater decorative effect is achieved.

Fig. 15 shows an embodiment in which a Number of zigzag ribs 21, 22 on both surfaces of a synthetic resin sheet are formed when the .position is made so that the bend 24 of the butt 2 exactly on the Back of the bend $ 2 of the butt 21 lies and the whole

Ii ¹ Olie is made of a transparent material, the ribs 21, 22 overlapping each other in a diamond shape are visible from both the top and the back of the film, which is why such a film with its attractive pattern is not only for decorative, but also for packaging purposes is suitable, ca the reinforcing effect is sufficiently large. However, embodiments can also be provided in which the bends 23, 24 of the ribs 21, 22 on the surface and on the back of the film do not overlap.

Fig. 6 shows an embodiment in which a number of zigzag ribs 26 in Heihen on the Surface of a surface 25 made of plastic are, while a number of rectilinear ribs 27 are parallel are provided to each other on the rear side of the film. If transparent material is used, they are hip visible overlapping one another both on the upper side and on the rear side of the film. In the embodiment according to 6, the straight ribs 27 run through the mat of the zigzag ribs 26, although the arrangement also can be taken so that the Hippen 27 along the Bends on either side of the zigzag ribs 26 extend.

Fig. 7 illustrates an embodiment in which a number of thread-like cores 29 made of natural or synthetic fibers parallel with the required spacing are inserted into a synthetic resin film 28, Hippen JO are formed on the outside of the cores 29, in the embodiment shown in Fig. 7, a number thread-like cores 32 made of natural or synthetic Fibers or a mixture of both are placed in a parallel arrangement between two pieces of soft, hard or semi-hard synthetic resin foils; before the two foils are combined with one another, with ribs 35 being formed on the outside of the cores 32.

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η ι

; iei the two embodiments according to .cig. 7 and 8 is through the λθγπθ 29 and 32 and the sips Jo and 33 remarkable reinforcing effect achievable, whom :: die Foils 28, 31 are transparent and the J \ erne 29, ^ 2 colored a good decorative effect can also be achieved. In the case of the embodiments according to iig. 7 and 8 the cores 29, 52 can be arranged crosswise.

.big. 9 shows an exemplary embodiment in which nips 35 are formed on the surface of a film made of a synthetic resin by molded-on binding lines made of a different synthetic resin when the ribs 35 are made of a more solid material than that of the film 34 are, the reinforcing effect for the film 34 is significantly increased. In addition, when the Earbe has the hip is different from that of the film 34, the latter being a latter a very nice Ausseihen; If the ribs 34 are made of a more solid material than that of the foil 34 and are of a color which is different from that of the foil 34, both of the aforementioned effects are combined.

Fig. 10 shows an embodiment in which tilt 37 in an axial and parallel arrangement on the inside a hose or tube 36 are provided, which consists of soft, hard or semi-hard synthetic resin, rsei soft material, the tube 36 can be used for packaging purposes if it is cut into suitable lengths, the u-egenstanc to be packed is inserted and then the öchluach it is sealed at both ends, while at a hard one or semi-hard material of the hose or the Hohr 36 as containers,. or for the transport of liquids or gases can be used if the Hohr bfcw. the hose 36 on one suitable length is cut and both ends of the same be closed by suitable covers.

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The embodiment described above is i "jofern advantageous as solid bags, containers and ..hoses or Tubes can be produced, since the fins 57 result in a reinforcing effect.

In the case of the embodiment described above can the ribs 37 on the outside of the hose or tube 36, or both inside and outside, or at intervals are provided ', as indicated by dash-dotted lines 37' in i'ig · 10.

Fig. 11 shows an embodiment in which ribs 39 by .including parallel lines coming from another Consist of synthetic resin on the outside of a hose or Tube 58 have been formed from soft, hard or semi-hard synthetic resin. Usage is the same as in Case of FIG. 10. However, since the ribs 39 are made of a material which is different from that of the hose or pipe 38 is different, a pretty tube can be achieved by placing the tube or hose and the ribs in a different one E — arbe are provided. Furthermore, the reinforcing effect for the hose or the pipe 38 can be increased by the fact that a particularly strong material for the ribs 39 is used.

Fig. 12 shows an embodiment in which a number of tough thread-like cores 41 made of natural fibers, synthetic fibers or a mixture of both axially at a suitable distance into a tube or into a Tube 40 made of soft, hard or semi-hard synthetic resin are used, with ribs 42 both on the inside as are also formed on the outside of the hose or tube 40.

iig. 13 shows an embodiment in which helical Ribs 68, 69 are formed on both the inside and the outside of the tube 67, the bus

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consists of soft, hard or semi-hard synthetic resin, as indicated in the drawing, there are cases in which the helical directions of the tilts, 68, 69 & n of the inside width and on the outside of the hose or pipe are different, as well as cases in which the tilts 68 are limited to the outside of the hose or pipe and ciie sip 69 on the inside.

Jig. 14 shows an embodiment in which a Number of zigzag ribs 44 axially with the required spacing on the outside of a tube or tube 43 is provided, which consists of plastic.

In the embodiment described above, there is the possibility of a number of axially rectilinear ribs in a parallel arrangement on the inside of the hose or pipe 43 integrally formed, what the achievement of a allows greater reinforcement effect. Λεηη the pipe 43 If this is made transparent, it becomes a cough obtained by the zigzag ribs 44 on the outside and by the straight ribs on the inside.

Fig. 15 shows an embodiment in which a A number of circumferential ribs 46 and a number of axial ribs 47 molded onto the outside of a hose or pipe 45 made of synthetic resin.

The films shown in Fig. 1-9 are made by a process in which the surface of a thermoplastic Synthetic resin film with a smooth surface on both sides of the same pressed with a heated roller which is grooved by which ribs are formed or by a method in which Resin is extruded through a shallow extrusion slot, or by a method in which resin tubular through a circular extrusion slot

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extruded and part of it axially to form a Foil is cut open.

16 shows an exemplary embodiment in which the film according to FIG. 3 is molded. z> z is an Gleitplat ze 59 is provided slidably at the upper front of a leil elongated in the performing Fxtrudierschlitz 58th For this sliding movement, the slide plate 59 is provided with a right and a left end hub 6o, which slide on guide shafts to the right and left and are loaded downward by springs 62, a support rod 63 with a power drive extending transversely below the slide plate 59 is provided and i-rams 65 are supported on the lower parts at both ends of the slide plate 59. These xiollen are in contact with a right and a left curve element, which are arranged in the vicinity of the two .enden of the support rod 63. The lower edge of the slide plate 59 is adjacent the upper hand of the extrusion slot 58 when the shoulders 65 together with the slide plate 59 are pushed upward by the protruding portions of the cam member 64, the arrangement being such that when the upstroke through the protruding parts of the curve element 64 is ended, the lower edge of the sliding plate 59 moves downwards halfway over the extrusion slot 58. This lower edge of the sliding plate 59 is provided with a number of notches 66 at intervals.

In the state in which the slide plate 59 is lowered, the lower edge of the slide plate 59 is halfway lowered over the extruder slot 58, so that a film, which is approximately half the height of the extrusion slot 58 is, is extruded from the lower edge of the sliding plate 59, the Hippen 17 then running parallel through the Notches 66 are formed on the top of the film 15 the sliding plate 59 will run together with the lugs 65 pushed up as a result of the rotation of the cam element 64 is, the extruder slot 58 is expanded so that

a larger length of material is extruded in the form of a protrusion will. However, the slide plate 59 is immediately lowered again, so that a transverse rib is formed on the film.

u'ig. Fig. 17 shows an apparatus for making a sheet of the type shown in Fig. 5. A top slide plate and a lower slide plate 48 and 49, respectively, which extend in the transverse direction are slidable are provided in front of the elongated slot for extruding synthetic resin, with rollers 54, 55 at each end of the slide plates 48, 49 against curve elements 52. 53 are pressed against that on the sliding plates 48, 49 in the direction of the upper and lower cam elements 52 and 55 by springs 50, 51 a train is exerted. These The arrangement is such that, depending on the rotation of the upper and lower ivurvenelements 52 and 53, the sliding plates 48, 49 a back and forth movement in the opposite direction to each other is reported within certain limits, the opposite edges of the slide plates 48,49 are arranged so that they narrow a slightly üL to form as the extrusion slot, and also a number Notches 56, 67 are formed on the opposite edges of the slide plates 48, 49.

The flat material extruded from the extruder barrel is made into the shape of a synthetic resin sheet 20 having ribs on both faces thereof; these ribs are through the Notches 56, 57 are formed between the slide plates 48, 49 when the film passes through. The ribs 21, 22 are, however zigzag bent when the slide plates 48, 49 are moved within certain limits in the transverse direction. When the upper slide plate 48 is moved alone and the lower slide plate 49 is kept stationary, the 6 obtained film, while the film shown in FIG can be omitted from the lower slide plate 49,

18 and 19 show a device with which the

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tube or tube 40 according to FIG. 12 can be produced

: can. A number of J-grooves 73, 74 are both on the inside

ι as well as on the outside of the annular extrusion

'Slit provided through an inner mold 70 and eino

Outer shape 71 is formed; these forms are in the intruder 75 arranged, in which the

\ Melted material by means of a screw 76, which

The upper part of the extruder 75 is provided through the channel

94 and then extruded through the extrusion slot 72.

Furthermore, a reel 42 for a number of cores 41 is at the bottom! Part of the intruders provided; these ^ erne 41 are made by

: deducted from this and the aforementioned are 72, 74 of the Ex-

! trudierschlitzes 72 over suitable Äollen od. the like. so supplied, that the cores 41 are correctly placed in the nipples 42 . which by the below 72, 74 both at the ^ inner-

side as well as on the outside of the synthetic resin hose

; or tube 40 are formed, which by the i ^ xtrucier-

; slot 72 is pressed out, iv.it 95 is a ventilation pipe

denotes by which i ^ uft into the hose or into the Pipe can flow in.

·; In i'ig. 20 and 21 is an embodiment of the device

shown with which the hose or pipe

: According to Fig. 13 Herge can be established. Inside the .extruder 96 a rotatable body 77 is provided, and a toothing 78 on a part of the outer circumference of the rotatable ■ Body 77 is accessible through a window which is on

. A part of the extruder 96 is provided, with which

ι toothing 78 a driven gear 79 ic .engriff

stands.

i On the front part of the rotatable body 77 is an inner

, form 80 attached, while a Hing 82 attached to the rear

Part of an outer mold 81 is attached, which is on the outside the inner mold 80 is rotatable, on the outside of the

; front part of the extruder 96 is rotatably seated, wherein a

Inner flange S ;, r.er is provided behind the- ^ ing 82, in an i '<ut 54 which engages on the outside of the extruder 96 is formed. This prevents the outer shape 81 from moving axially, with the outer circumference of the outer shape 81 a toothing dp is provided, which is driven with a i-.ahnraö 86 is in the x ^ ingrif "".

At intervals are on the outside of the inner mold 80 and on the inside of the outer shape 81, grooves 87, 88 are provided, Furthermore, an annular i ^ ctrudierschlitz 89 is between the inner mold 80 and the outer mold 81 are provided.

iin ^ ventilation duct 90, the one at the front end of the inner mold 80 is open, i.e. in the middle of the rotatable body 77 and the inner shape 8ü provided and bent within the rotatable body 77 so that it is at a leil of the circumference of the rotatable body 77 is open, with a üut 91 opposite which is shaped on the inner circumference of the extruder 96 so that that it extends over its full circumference, with which anger 91 a ventilation pipe 92 is in communication, the introduced into the synthetic resin hose when it is adjusted Air is used to prevent deformation of the hose.

^ ei the previous form of execution, if the melted Resin is extruded with the help of the screw 95 and when the inner mold 80 and the outer mold 81 in opposite directions Sightings are rotated with the help of the track wheels 79, 86, screw line-shaped ribs 68, 69 in opposite seals through the grooves 87, 88 on the Formed outside of the hose or tube 67, which is pressed out through the .ixtrudierschlitz 89 and in i? Ig. 13 shown is. if the inner mold 80 and the outer mold 81 are rotated in the same direction, the tilt runs 68, 69 helical in the same gasket, if the rages 87 of the inner mold 80 are omitted only the ribs 68 formed on the outside when the iiuten

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88 of the outer shape 81 are omitted, only inner ribs are obtained.

Further, if the butts 88 of the outer mold 81 are omitted and the synthetic resin is omitted with the inner mold 80 fixed is extruded, a hose or a tube of the type shown in Fig. 10 is achieved. When the grooves 87 of the inner shape 80 can be omitted and the outer shape 81 can move back and forth within a certain fixed angle is communicated by means of a suitable drive without a full revolution taking place, a hose and tube 43 with zigzag ribs from that shown in Fig. 14, respectively Kind received.

If now, for example, the core feeding device shown in FIG is omitted, the outer grooves 75 of the inner mold 70 are omitted, another synthetic resin feed hole, which with the groove 74- of the outer shape 71 in Connection is provided, the synthetic resin supplied from this hole is of a different quality or color than that from the channel 9 ^ - is supplied synthetic resin, becomes a hose or Hohr of the type shown in Fig. 11, while if the tube is cut open, a film as shown in Fig. 9 is achieved.

Dipl. Ing. K. ichieschka

Claims (7)

Dipt. ing. K. Schirchke protection claims 1. Synthetic resin films or tubes, especially for
Packaging material, as well as for the protection of objects, with arranged on one side, straight
extending stiffening ribs, characterized in that the tilts are molded from a synthetic resin of greater strength on the upper side of the foils or the outside of the hoses. 2. synthetic resin films or tubes according to claim 1, characterized in that on both widths of the film and the
Outside and inside of the tubes a number of
Tilts are shaped. 3. synthetic resin films or tubes according to claim 1, characterized characterized in that a number of kin, which run in different directions, on one side of the Foil or the outside of the hose are formed in a crosswise arrangement. 4. synthetic resin films or tubes according to claim 1, characterized characterized in that the tilts are formed in a zigzag shape are. 5. synthetic resin films or hoses according to claim 1, characterized in that the tilting on one side of the
Foils are straight, on the other oeite are zigzag-shaped. 6. synthetic resin films or hoses according to claim 1, characterized in that the tilting on the outside and
or or run helically on the inside of the hoses. —2— 7. synthetic resin films or ochläu? .He according to claim 1 and 6, characterized in that the sips ..J the Jiußen- and inside of the surface of the cochlea are interrupted are trained. , · Λ: VV Dipl. Ing. K. Schieschke