DE1536016A1 - Bottle, barrel, transport container and storage container made of plastic - Google Patents

Description

Bottle, passport, transport container and storage container made of plastic

For economic reasons, bottles and containers made of plastic must be as light as possible but have sufficient stability Reinforcement with ribs or beads to be provided »Next IsS in the German patents 1.071.519 and I" 105o337 for the storage and transport of pressurized, gaseous liquids, bottles and containers whose jackets are composed of spheres «zonan ·

The purpose of this invention is to increase its economy lower weight and thus lower price of the material with extensive unbreakability during filling, storage, transport and with handling by the consumer, especially for one-way packaging on the drum sector, for the packaging of chemicals or foodstuffs, like herrings, butter, tisw »

The plastics industry has developed largely gas-tight plastics, ζ.Β «hard FVC, in a physiologically flawless composition, so that there is technically the possibility of extremely thin bottle walls without the need for ζ · Β _β when storing beer under normal conditions

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Storage conditions a noticeable loss of carbonic acid occurs · Tests have shown that disposable bottles for carbonated beverages can be made so thin that they can be crumpled up after the beverage has been consumed by Hanil »

The invention enables containers with the smallest possible wall thickness ₀ E ¹ Ur extremely thin-walled containers with z _o B _e l / 10 mm wall dioke. According to the invention, the spherical zone "shape with an approximately spherical bottom"

Purely the filling technology results in the application of the spherical zone shape suitable base and reinforcement ring training a good sense of security, so that even with pre-evacuation and machines with pre-pressure, the filling quantity can be regulated by adjusting the height of the liquid level is possible".

The invention is also applicable to the bottling _9, transport and storage of

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gaseous liquids and all areas applicable] / compressive strength and stability with the lowest weight economical and functional Offers advantages, eg »B« containers for space travel, underwater bodies «· by, floating buoys, floating bodies as fenders or for boat riser storage, lightweight transport containers for water, air, rail and road transport, Sehleppo containers for cargo shipping, containers and tanks for fuel and other supplies, ζ · Β · for troop supplyi Underground tanks for fuels and heating oils, which are also under external and possibly "also internal overpressure, home siphon and stretcher" siphon, milk bottle, aerosol container, portable fire extinguishers When used as a storage container, the required Torrichtuntfen are required for the support of the containers attached to the reinforcement rings so that the spherical zones are not loaded with the support forces /

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According to the invention to the bottles and containers with preferably spherical zone shape made of plastic, Z ₀ as PVC * polyethylene, polypropylene, polyamide, for example in an extrusion or film blowing, Spritzgiessblasverfahren, injection molding method, vacuum molding method, iiefziehverfahren the "transfer molding, rotational molding or wound of glass-fiber reinforced polyester resins an extremely thin wall thickness of the Flasohenboden be prepared, obtained whose Biegesteigigkeit is almost zero, where "large" deformation, for reasons of strength and calibration capability can be avoided by ⁿ ball zone mold is the shaping of the wall corresponding to the latent I "071o519 and lolQSe337 ^, but is not simply curved, but is shaped in such a way that, as a spherical cap, it completes the lower half of the spherical zone roughly to form a hemisphere. "An annular base can be attached here"

In addition, to avoid a "large" deformation of the connection point between two spherical zones as described in patents 1071,519 and Iol05o337 as a reinforcing bead described as one piece with the bottle wall attached as an additional reinforcement ring

When the reinforcement ring is made of elastic material with a cross-section that is completely Λ defined, it acts as a breathing band, in that the expansion of the wall is limited to the area between the spherical zones when the overpressure in the container increases «

Another object of the invention is a suitable closure, which due to its stiffness on the one hand is loaded by internal pressure, at the point of opening of the container or _o of the mouthpiece of the bottle discontinuous wall of the upper ball zone rests and which occur here radially outwards acting component which absorbs embracing forces, on the other hand increases the necessary sealing forces as a result of the load from the internal overpressure * 9Q98Aß / "0 979

Another feature of the invention is that during the manufacture of the hollow plastic body, a prefabricated ring is inserted into the manufacturing mold so that it connects to the hollow body wall and that the bottle wall is inflated from a film tube during filling with the product The reinforcement ring placed around the film tube avoids inflating the tube to a full ball, and the closure after inflation Z ₀ B ₀ is formed by welding and further in that the walls are made of elastic) liquid-tight or gas-light, foldable material ) whereby the reinforcement rings lie over one another in the folded state and the collapsible container is pulled apart during the filling process by the pressure of the contents) so that the reinforcement rings assume their final position and the container walls form their spherical zone shape.

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In the following drawings, in an exemplary manner, embodiment bottles, barrels or containers according to the invention. placed, namely walls in spherical zone shape, which are also • spheroidal, elliptical, hyperbolic, parabolic, club-shaped, can approximate egg-shaped or similarly geometrically shaped bottoms »

1 shows a view of a drinking bottle with a spherical bottom and stand ring 2, which is made from the material of the container wall 1 The pinch seam 3 of the blown hollow body can be produced in various sizes; if the blow mold is designed accordingly, it no longer protrudes.

In Figo 2 a stand ring 2 is shown, which is prefabricated from a suitable material and placed in the blow mold when the hollow body 1 is blown.This ring can also be divided for manufacturing reasons, or individual ring segments that do not form a closed ring take over the function of the Stand ring

The shown in Figure "3 and 4, prefabricated stand rings 2 are ä · employed in useful arranged annular grooves of the hollow body shells 1 after the production of the hollow body, it is also possible insertion in place in the annular grooves prefabricated rings adhere to weld, etc., with the annular grooves can be omitted in the hollow body shells 1 · A stand ring 2 can also be formed from a sheet, for example made of cardboard, with a suitable machine in a manner known to be, among other things, the base around the ring and glued, whereby the tape can be fed from a roll »

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Fig. "5 shows the attachment of a wire frame 2 or plastic frame, which is resiliently guided over the lower part of the bottle 1 and forms a standing surface at the bottom"

In lig »6 a prefabricated ring 2 or a prefabricated disc made of a suitable material is clamped after completion of the hollow body 1 over the appropriately designed Quetsohna ^ 3 of the plastic hose with the advantage that the shell shape of the bottom and container wall is not interrupted

I ⁿ Fig · 7 is a spherical domed bottom is drawn inwardly and out with a brim radius 10 to the container casing 1, so that the forces perpendicular to the container wall be initiated · A similar effect is shown by in Figure "8, conical retracted floor Achieved for stiffening these floors can also be provided with a web 3, which is formed from the pinch seam 3, or with a cross made of two blown Sioks.

The stand rings 2 according to FIGS. 2, 3, 4 and 6 can be used with Advertising text can be printed, labeled or embossed »

9 shows a bottle with a reinforcing ring 9 which is not connected in one piece to the bottle wall 1 and which absorbs the radially acting ring forces. it can be prefabricated and inserted when the bottle is manufactured, whereby it connects to the bottle wall, but also after completion of the 4-bottle bottle, and depending on the material, it can be glued or folded.

If you use a film tube to make the wall when the pull ring is placed, this is at the same time as the product

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inflated, taking the form of two or more spherical zones « The bottle opening can be welded in a known manner »If the internal pressure increases as a result of heating, the tension in the bottle wall increases, so that even with elastic Material gives a solid bottle shape «,

The Ringquersohnitt arge is taken only as an example rectangular in Figure "9, it can also be another, for example _e have circular cross-section _e of the reinforcing ring is allowed to settle in a suitable manner in color from the rest of the bottle, ZOB. by anodizing aluminum rings, advertising prints, labels or embossing can also be attached

FIG. 10 shows a barrel with a reinforcing ring 9, which consists of a plasticizable plastic that is applied after the container has been completed in a suitable process, for example by spraying, and when it cools or through a chemical reaction it bonds to form a solid ring * At the same time, a connection is made with the container wall 1 · Another possibility for producing a reinforcement ring as shown in Fig. IO is the injection blow molding process, in which the container or bottle is blown out of an injection molded preform, which will replace the future ring reinforcement has a V-accumulation of material "and the reinforcement ring $ Fig. 10 made of a plasticized plastic after completion of the BeHeX wall 1 in a suitable process, eg. by spraying, is applied and siofi when it cools down or chemical reaction connects to a solid ring. Here,% *? &; · - © iftfe connection with the material of the bottle or container wall,;! take place" .

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Figo 11 shows a bottle with a reinforcing ring 9 'of a spherical zone Wandstüok 1 with a non-spherical-zone-shaped, ζ · Β "conical wall portion 13, or with a spherical-zone-shaped wall member with a different Kugeldurohmesser connects ₀ From Figure" 12 is to recognize that exist at the pull ring Löcherf4 into which the material of the bottle or container wall is drawn during the manufacturing process, so that warts form, which prevent the wall material from migrating in the axial direction under the ring in the event of internal overpressure and thus enable the spherical zone to expand and the wall material to slide under the reinforcement ring J is avoided if spherical zones of different diameters or spherical zones and differently shaped hollow bodies are connected to one another «

From the preceding description it emerges that a design of the reinforcement ring according to FIG. 13 also acts as a pull ring, especially in the case of extrusion. The sion blow molding process automatically increases the wall thickness at the point of the smallest diameter ₀

In Fig. 14 to 17 bottles and containers with closures are drawn, which are tight in connection with elastically deformed bottle walls Closures are designed in such a way that the forces required for closing do not act vertically on the thin-walled bottle and do not load it.

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The Flaschenversclluss shown satisfied in Figo 14 is in an unsealed state, the dashed lines by It position indicated _e during the closing operation, the material of the Deckeeis <> preferably tinplate or aluminum, crimped in position 15 j £ s can be clearly seen that this no vertical forces through the bottle wall - take are _e the soft, resilient seal 16 is already compressed during the closing * When occurring internal overpressure in the bottle or container, the sealing force is increased in two ways, once the bottle wall 20 is auseinandergedriiokt laterally and forms an 'additional laterally acting arrival μ press printing, is to the other by pressure on the surface 17 of the lid in the lower part of the seal β, an additional contact pressure generated · a tear-off 19 allows an opening of the closure "Furthermore, the closure can be constructed as a tear-off closure, with the lid in Area of the A breisslasohe 19 is pre-cut

15 shows a spherical zone bottle with a modification of the closure according to FIG. 14, in which the middle part of the cover 17 is drawn in deeply is·

In Fig. Bottle illustrated 16 has a closure which consists of a planar cover 17, the edge of which is crimped 15 via a seal 16 to the bead ring of the Flasohenmündung _o The lid 17 is only partially rigid, thereby deform in internal pressure such that the edge 15 is drawn together as a ring and an additional. Contact pressure generated on the side edge of the sealing surface »This phenomenon can be reinforced by the formation of the cover at the corner between the cover 17 and the edge 15 with a stiffener, eg by an accumulation of material ·

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FIG. 17 shows a can with a closure which can also be used for barrels and the like. It consists of one Cover I7 and a tightening strap 15 »The tightening strap 15 is secured with a suitable Device pulled over the seal 16 during the closing process and thus presses the seal l6 both on the underside of the Container edge 18, as well as by the wedge effect of this container edge 18 at the top

The sealing forces on the upper side of the container edge are increased by negative pressure and those on the lower side by positive pressure in the container. The tightening strap 15 can also be designed in the form of a light, flanged ring and can be opened by tearing it open _e

18 shows a transport or storage container in the form of a spherical zone with a reinforcing ring 9 and support claws 12 "The support claws 12 are attached to the reinforcement ring 9 so that the spherical zone wall 1, which is subjected to pure I / I membrane stresses, is not subjected to additional stresses" such as are created by the support forces. is claimed "

It is also possible to produce collapsible containers in the shape of spherical zones »where the u »U« pressurized liquid when filling the spherical zone • shape of the collapsible container, while the empty container creates an accordion is folded up and thus requires the smallest transport volume · The reinforcement rings between the spherical zones are included folded containers on top of each other, and are used during the infested duroh driven apart the filling pressure and in its final L * * brewed "

The vacuum resistance of the mold also allows it to be used as a Honey, tin or jam jars and for drinking bottles »Be ist

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Use as a projectile is also conceivable, with the stable Shape for transport and ease of use when thrown and the fluted wall dioke to increase the explosiveness in the event of an explosion Offer advantages »

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Claims (1)

Claims lo) bottle, barrel or container with spherical zones _9, characterized in that the bottom is curved approximately spherically 2o) bottle, barrel or containerx 'according to claim 1, characterized in that that a standing ring ^ 2) is formed from the material of the hollow body shell and in particular the transition (4) from the hollow body shell to the hollow body bottom welded isto 3o) Stable hollow body bottom for bottle, barrel or container according to Claim 1, characterized in that das3 with the hollow body (l) a prefabricated ring (9) or dglo in grooves or grooves of the Hollow body is one eye control * 4o) bottle, barrel or container according to claim 1, characterized in that a prefabricated ring (2) is clamped to the correspondingly formed pinch seam (3) of the hollow body _e 5o) bottle according to claim 1, characterized in that the wall of the bottom with a rim radius (10) of about 1/10 of the bottom « diameter is connected to the stand ring (2) o 60) Bottle according to claim 1, characterized in that the ring (9) is concave and has by manufacturing at its smallest diameter, a wall thickness _v ergrösserte " 909848/0272 bathroom 7 ·) Bottle according to claim 1, characterized in that holes (14) are present in the reinforcement ring (9) • 8 ») bottle according to claim 1, characterized in that the lid (17) protrudes into the neck of the bottle in order to a compression of the bead (15) au prevent, and only is partially stiff " 9 ·) Container according to Claim 1, characterized in that for support necessary devices (12) on the Veratärkungsrin- ^ j gen (9) are attached. 10 ») Method for producing the container according to claim 1, characterized characterized in that in the manufacture of the plastic hollow body a prefabricated ring (2) is inserted into the manufacturing mold, 80 that it connects to the hollow body wall (1). 11.) Method naoh claim 10, characterized in that the Bottle wall from a film tube is inflated during the filling with the product, with the around the film tube placed reinforcement ring (9) avoids an inflation of the hose to a full ball, and the closure after inflation e.g. through. Welding is formed (α 12) The method according to claim 10, characterized in that the wall -c- de (l) made of elastic, liquid-tight or gas-tight, fold-00 "" * are made of material, the reinforcing rings in together ^ lie folded on top of each other and duroh during the filling process the pressure of the contents of the collapsible container is pulled apart » ao that the reinforcement rings take their final position and let the container walls form their Kugelaonenfor * ^ p qRIG'I'AL Blank page