HK1007997B - Plastic container and pallet system - Google Patents

Description

The invention relates to a plastic container with two front frames and a longitudinal container between the front frames, the bottom part and the side walls, and with means for attaching the front frames to the front frames, the plastic container having two opposite front ends as a framed piece with a top and bottom edge, a pair of parallel lateral edges connecting them and a plate-shaped insert of hard foam, which are interlaced by a non-combined plastic container length as a strung out profile body, which takes at least two parallel lengths, forming a thin cross-section of the container, and is easily adjustable in the front and rear of the container, with several seams, and is easily adjustable in the front and rear of the container, and the seams are easily adjustable in the front of the container, and the length of the container is more than two in the rear.

The problem with using corrugated containers is that they are not moisture resistant and are therefore damaged by exposure to moisture. In addition, corrugated containers are not reusable and in many cases prevent the necessary ventilation of the product contained in them. Wooden containers are often made of very thin, fragile wood for weight reasons. Wooden containers are also not moisture resistant, often prone to mold, allow the product contained in them to spoil and are generally not reusable.

Plastic containers for agricultural use are also known for their state of the art, but they are produced by injection moulding.

A plastic box-like container of the type mentioned above has therefore already been proposed for the transport of agricultural products such as fruit and vegetables (DE-OS 27 17 880).

The manufacture of containers for agricultural products is also known to be foamed. The production is done by the injection molding process, whereby the containers are produced in a disassembled or folded state in a plane in which relatively large quantities of containers can be transported to the customer with little space required, i.e. to the place where the agricultural products are packed in the containers. To make the container, the side walls are bent high along the hinged areas and the existing approaches of the container edgers are inscribed in these compactly trained glue at the end of the containers. The sea walls are then inserted by tape, binding material or other adhesive. One means of transport is added to this patent. U.S. Patent 6808 U.S. 6758.

Although such a foam plastic container has advantages over conventional corrugated containers, it is relatively expensive due to the relatively long cycle times of the injection molding machine that produces it.

Another well-known packaging box, especially for fruit and vegetables, consists of a container with headboards made of wood, wood aggregate or plastic cast or sprayed. The headboard is shaped like an open box, i.e. it has a U-shaped cross-section in both the vertical and horizontal directions. The headboards are pushed into a channel-shaped element forming the length of the container walls and fixed there by metal nails (DE-OS 22 35 989).

The difficulty in producing such plastic headboards of the familiar container is that the reinforcement frames of parts made of unfoamed plastic must be extremely low, otherwise they will deform greatly when cooled.

The Commission has not yet decided whether to grant the aid to the steel industry, which is in the process of setting up a new plant, in accordance with Article 92 (3) (c) of the Treaty.

A fruit box is also known, designed to fold the side and front walls to give a relatively flat, folded section, with a lid with stiffening profiles (FR-PS 1 040 163).

Another well-known container is composed of loosely assembled individual components, the individual components being held together by means of fastening clips of a very special design.

In another well-known case, the side and front surfaces are joined together by hinges so that the container can be folded up to a fairly flat section when not in use, while in use the stiffening is done by inserting or hooking a floor or top surface.

Err1:Expecting ',' delimiter: line 1 column 1008 (char 1007)

However, a transport box, in particular for fruit and vegetables, is known to consist of a core of flexible sheet metal, such as cardboard, which is flexible and resistant to moulding and which can be inserted into plastic front sides with absorbent materials for its edges and anchored by means of a base which is more extensive on the sides and is fitted with holes in the side walls with elastic bands on the side edges of the front walls (DE-OS 26 93 198).

In the case of a conventional plastic packaging box, a lid is fixed to a floor by means of ordinary pins, the connecting pins being ordinary pins which are intended to secure the lid to the floor in such a way as to enable it to be closed by means of the means of closure provided for (DE-OS 15 36 311).

FR-PS 21 40 093 describes a stackable container with columns in its corner areas of the top edge level, each column having an open-topped nut into which a plug is inserted at the bottom of another container on the first container from a container placed on top.

The purpose of the invention is to create a plastic container, particularly for a pallet system connected to it, in which the individual container is resistant to deformation even under thermal stress, has a permanent connection between the components, is easily stackable and cheaply manufactured, and one or more containers can be assembled into a unit, if necessary in conjunction with a specially designed pallet.

This task is solved by the characteristics described in claim 1.

This training of the container allows the combination of containers into a complex and the arrangement on a pallet.

A plastic container of this type consists of a pair of plastic face walls, attached to the opposite ends of a plastic side wall; each of these face walls consists of a pair of narrow side edges, which are held at a distance from each other by a pair of wide, parallel upper and lower side edges; the narrow side edges each have an upward projection at the opposite ends, which is interrupted by the exceptions of an adjacent container when the shelves are stacked vertically on top of each other; each of these upward projections furthermore delimits a narrow upper, open surface, with the surface of the ground parallel to the substantial nut of the brain.

The plastic container on which the present invention is based is further designed as a pair of plastic sidewalls with a plastic longitudinal wall attached between them. In addition, a lid is provided with a pair of spaced sidewalls with a large number of protruding protrusions extending outwards. The sidewalls are each supported by a pair of narrow sidewalls, held apart by wide upper and lower sidewalls provided in parallel, the wide upper edges being at least one of at least one wide lower edge on the upper side, the first surfaces running parallel to the upper edge. The test shaft is arranged so that a plastic material is placed on the lid when the lid is turned on and closed.

In another embodiment of the present invention, the plastic container comprises a pair of plastic faces with a plastic longitudinal wall between them, consisting of a fixed part and a removable part. The fixed part of the sidewall comprises a side, the bottom and a lower lip part of the other side of the container. The removable part generally consists of a flat, rectangular plate fitted with fasteners to close the container along an edge to penetrate the lower lip part.

In accordance with another embodiment of the invention, the container also comprises a fixed part and a removable part of the sidewall. In this design, the fixed part has a first side, a bottom and a second side, the second side enclosing a rectangular opening in it. The removable part comprises a rectangular plate to close the second side when inserted into the container.

The plastic container and pallet system of the invention consists of stackable, stacked plastic containers which are locked in a similar way to the pallets on which they are stacked. Each container comprises a pair of sprayed front walls with protrusions along its upper edge and protrusions along its lower edge. Thus, when one container is sprayed on another, the protrusions of the bottom edge of the upper container are in contact with the protrusions of the bottom container. Similarly, the pallet is provided at certain intervals with mounting protrusions that are sprayed through the ground. All the protrusions in each container are placed on the front edge of the container. If a band is extended over the bottom of the container, the protrusions in each container are located on the front edge of the container.

The containers are made entirely of a special plastic material and are joined by vibration welding to form a unit. In one design, a side wall of the container can be removed to create an office shelf system with these containers on the pallet.

The pallet consists of two basic components, namely a number of ground rails with a number of cross sections attached to them at an angle of 90° and at a distance from each other.

Further features and advantages of the present invention are given in the subclaims and are apparent from the description below together with the drawings.

Examples of embodiments of the invention are illustrated in detail in the following drawings:Fig. 1 the explosion view of a plastic container underlying the present invention and showing the characteristics of a first design,Fig. 2 the enlarged partial view of a structure along lines 2-2 of Fig.1,Fig. 3a and 3b the enlarged partial views of the structure along lines 3-3 of Fig.1,Fig. 4 the enlarged partial view of the structure along lines 4-4 of Fig.1,Fig. 5a and 5b the front view of the interior surfaces of the containers of the container of the first design,Fig. 6 the enlarged partial view of a bearing similar in shape to the bearing of Fig. 7a, but with a perspective similar to the bearing of the second design,Fig. 7a and 7a.1, but in a third design form underlying the present invention,Fig. 8a and 8b respectively, the enlarged partial view of a structure along the line 8-8 of Fig. 7a and 7b,Fig. 9 the perspective view of the door to create a storage container closure according to Fig. 7a and 7b,Fig. 10a, 10b and 10c respectively, the upper, front and side views of a pallet structure with the underlying features of this invention,Fig. 11 a cross-sectional view of the floor rails of the entire pallet according to Fig. 10a, b and c,Fig. 12 the perspective view of a three-dimensional composition of pallets according to Fig. 10a, b and c,Fig. 13 and the perspective view of the pallet packing system and the pallet system according to Fig. 10a, c and d.10a, b and c stacked containers of Fig.1,Fig. 14 the perspective view of the packaging containers of Fig. 6 or 7a and 7b with the pallet system of Fig. 10a, b and c to form a fixed storage unit, andFig. 15 the perspective view of the storage containers of Fig. 6 or 7a and 7b with the pallet system of Fig. 10a, b and c as a movable storage device.

Fig. 1 shows a plastic container 11 comprising a pair of front walls 12 preferably made of structural foam, such as polypropylene foam, the front walls 12 usually form a frame of a pair of wide upper and lower side edges 13 and 14 running parallel, each connected to a pair of narrow side edges 15 and 16 running usually parallel.

A longitudinal wall 18 forms the connection to the front walls 12 and is made of plastic, such as high impact resistant polypropylene styrene, and is preferably produced by extrusion.

The longitudinal wall 18 comprises a number of reinforcement ribs extending along the length of the vessel 11 and parallel to the side-lips 21 19. beyond each of the edges of the wall 18 the extension of the lip 21 by 90° inwards to the side of the vessel 11 curved ears 132 (Fig. 4) an advantageous design of the extruded longitudinal wall 18 comprises a pair between two reinforcement ribs 19 and parallel inclinations 22. to form a U-shape with adjacent reinforcement ribs 23 the wall 18 is curved on one side by 90°. During bending the longitudinal wall 18 is bent under the influence of moderate heat and the moderate pressures to achieve a permanent deformation of the longitudinal wall 18 are also described below.

The front walls 12 and the longitudinal wall 18 can be assembled by several known methods including bonding and vibration welding. The preferred method is vibration welding. In both methods the front wall 12 intervenes at the end of the longitudinal wall 18, with the reinforcement ribs 23 at the narrow side edges 15 and 16 and the bottom side edge 14 of the front side 12. A detailed description of the construction of these parts is given in the description of Figures 5a and 5b.

The front walls 12 are fitted with a central opening 24 into which the insert 25 is inserted. The insert 25 is generally flat and rectangular and has markings indicating the origin of the packaged goods through the opening 24. The insert is also made of a plastic material such as high-strength styrene or polypropylene and is preferably produced by extrusion. The insert 25 is made by means of a suitable glue, cement or by vibration welding in the rectangular opening 26 on the inside of the front opening 12 . Vibration bleaching is the preferred method for fixing the insert 25 .

The lid 28 is fitted with a spring groove 29 which, as shown in Fig. 2, is arranged to loosen the handle or clamps of the upper side lip 21 of the longitudinal wall panels along the side lip of lid 28. The spring groove 29 according to this design encloses about 225° of the lip 21. This is done by including a spring groove 30 within the U-shaped groove 29 to meet the lower outer edge of the lip 21. This design also involves stabilizing the upper edge of each side of the lip 21 when the lid 28 is in contact. To facilitate the opening and removal of the lip 28A, the spring groove 29 is designed to be placed on the entire lip of the lid 21 (although the 3 and 5 pairs of grooves are parallel to each other, the 3 and 5 pairs of the deck 28A and 28A are also located on the sides of the deck 28A).

Figure 3a shows the lid 28 mounted and locked with the longitudinal wall 18 in this position, three of the 35 protrusions of the lid with the upper cones 32 are aligned. To remove the lid 28, the spring grooves 29 must be detached from the side lip 21 and the lid 28 moved in one direction until the 35 cover protrusions, as shown in Figure 3b, release the upper cones 32 of the front wall 12.In this position the lid 28 can be detached vertically from the tank 11. The closing of the tank 11 must be done in reverse order. Figures 5a and 5b show a lid opening created by the upper and lower pins 32 and 34.12 spokes extending over a substantial part of the upper side edge 13 of each frontal wall, thus supporting each of the lid protrusions 35 and not only those supported by the upper protrusions 32.

As shown in Figures 1, 3a, 3b, 5a and 5b, the front walls 12 each have a pair of upward facing stack springs 38 at the ends opposite the upper edge 13. The stack springs 38 meet the stack gaps 39 at the ends opposite the lower wide edges 14 to prevent the vertically stacked containers 11 from moving to one another. Each stack sprung 38 is also equipped with a usable band 40 through which the stacked containers 11 can be held together with the pallet to form a palette composite. This feature is described in more detail after the introduction of the palette construction. The cover 28 includes a longitudinal band 27 to promote the expansion of the cover 27.

From Figures 5a and 5b, Figure 5a shows the inner surface of the front wall 12 with exceptions 26 and 134, lower studs 41 and fixing rails 44. Figure 5b shows the insert 25 mounted in the outlet 26, the lower edge of which touches the fixing rails 44 with its bottom edge. As described above, the insert 25 is preferably mounted by vibration welding. When mounted, it is seen that its upper edge contributes to the delimitation of the cover groove 36 between the upper and lower studs 32 and 34.

In the manufacture of the lid 28 and the longitudinal wall 18, the reinforcement ribs 19 are preferably integrated into the extruded plastic part and the extruded plate is extended laterally to the desired length and to form ears 132.

In the folded state, the plastic container 11 consists of a series of relatively flat parts which can be transported with little space required. The containers can be conveniently assembled ready for use only on the field or in the packaging building by folding the side panels of the longitudinal wall 18 and welding the front walls 12 against the edges of the longitudinal wall 18. The plastic container 11 can be easily reused in the production process by grinding the plastic parts and reusing the plastic material as an extruder for the extrusion of the length 18 line, the lid 28 and the insertion 25 line. The extrusion of the lid 28 line and the insertion 25 line is prevented by welding the front walls 12 against the edges of the longitudinal wall 18 and the end of the container. The plastic container 11 is much less absorbable than the plastic parts and reuses the plastic material as an extruder for the extrusion of the length 18 line, the lid 28 line and the insertion 25 line. This prevents the extrusion of the lid 28 line and the insertion 25 line from being used in the manufacture of the container 11 material, which is not a material with a significantly lower content of plastic or paper, or plastic, as is known, or is formed in the container, and therefore not used in the entire transportation area, as well as the container 11 material.

Figure 6 shows another form of plastic container 11'. Essentially, the 11' container is the same as the 11' container as shown in Figure 1. The only exception is the longitudinal wall consisting of two sections 18' and 18'a. The 18' longitudinal wall consists of the rear wall 46, the bottom part 47 and the front lip part 48. The front lip 48 extends along the side edge of the 47' floor and forms part of the front wall of the container 11'. The remainder of the front wall forms the 18'a wall. When the 11' shelf is closed, the front sound 48' of the 18' wall under the 18'a wall of the 18'a container enters the 49' lip in a way that is useful.Along its upper edge, the wall 18'a comprises a spring groove 50 which, when closed above the lid 28', is in contact with the lip 51 in a similar manner as shown in Figure 2. The rear edge of the lid 28 is in contact with the upper edge of the rear wall 46 in the same way as shown in Figure 2 for container 11 in Figure 1. In addition, the container 11' can be closed by connecting the locking band 52 to the finger hole 31 by a metal or plastic lock or by a lock with a long lock.

The 11' tank differs from the 11' tank of Figure 1 also in that no through-holes are provided and the 25' insert has a break at one end of the tank where an identification card 53 can be placed.

Err1:Expecting ',' delimiter: line 1 column 133 (char 132)

Err1:Expecting ',' delimiter: line 1 column 182 (char 181)

Figures 10a, b and c show a pallet 100 to accommodate six containers in a plane of the type shown in Figures 1, 6 or 7a and b, three of which are stacked on top of each other and two behind each other.ground rails 102 consist of two parts, an outer rectangular section 116 with feet 118 and an inner, essentially rauten-shaped insert 114. The retraction of the feet 118 at the lower end of the outer rectangular section 116 forms the bandnut 112, which will be described in more detail later. Between the inner and outer rectangular section 116 there are channels 122 which fit into the approaches 120 of insert 114. Both insert 114 and outer part 116 are, for example, extruded from high-strength styrol or polypropylene and then extended to the desired length. The ground rails 102 are mounted by pushing the insert 114 into the outer part 116,The forks 120 are held by the channels 122 and this structure is connected by vibration welding, and then, to provide access for the forklifts, the forks 110 from the bottom of the ground rails 102 are cut to the side of the stacked containers 11 with the corresponding spacing between them. Each of the 104 cross sections also comprises 108 protrusions, spaced at a certain distance from each other, which are engaged with the stack exceptions 39 to accommodate the first 11 or 11' position containers stacked on the pallet 100.The material for the 104 cross-sections is preferably made of, for example, high-strength styrene or polypropylene and is extruded in a beehive pattern as shown in Fig. 10c. The final assembly of the pallet 100 is carried out by placing the 104 cross-sections on the 102 ground rails perpendicular to the 108 ground rails below the 108 cross-sections involved. The 100 pallet can then be welded by vibration welding or non-welding (stake welding) with the help of access holes 106 which are connected by the 104 cross-sections into the 102 ground rails.In the case of non-welding, the welding apparatus creates a thermal compression connection between the lower plate of the quarter 104 and the upper plate of the ground rail 102.

The structure of pallet 100 made of high impact resistant styrene or polypropylene and the use of a beehive pattern inside the ground rail 102 and the cross section 104 achieve the low weight of the pallet with high stability, which, like container 11, can be installed on the field.

Figure 13 shows a pallet 100 with 30 containers 11 built on it. The pallet 100 is attached to pallet 100 by pallet belts 124 which extend under each ground rail 102 in band nuts 112, upwards over the front walls 12 of the container 11 through the band nuts 40 of the upper container 11, passing over the upper containers 11 and being brought back to the back of the pile. The belts may be made of solid non-stretchable plastic material and connected by known methods, e.g. thermal bonding or clamping.

Err1:Expecting ',' delimiter: line 1 column 138 (char 137)

Finally, Fig. 15 shows mobile storage units 128 Each of these units comprises a pallet 100 with four wheels 126 and a certain number of containers 11' arranged on it.

The container pallet system underlying this description has many advantages. These are not only reflected in the stability of all the components of the system, but also in the fact that they carry only one third of the weight of conventional box and pallet systems. The wide temperature range they can withstand without damage is of particular interest. Styrene or polypropylene are materials that can withstand a wide temperature range, from freezing to temperatures substantially higher than those found in very hot climates.

Err1:Expecting ',' delimiter: line 1 column 242 (char 241)

Claims (18)

1. Plastic container (11) with two two front-end frame parts (12) and a container longitudinal part (18) attachable between the front-end parts and forming the bottom part and the side walls and with means for attaching the front-end frame parts to the container longitudinal aprt (18), in which the plastic container (11), on its two oppositely located front ends, possesses end walls in the form of a frame-like casting having an upper and a lower edge (13, 14), a pair of parallel side edges (15,16) connecting the same and with a plate-shaped insert (25) of hard foamed plastic which, between each other, accommodate a container longitudinal part (18) constructed in the form of a strand-like sectional member of a non-foamed plastic which possesses at least two slightly flexible hinge means proceeding in its longitudinal direction which are thinner in their cross-section than the remaining area of the longitudinal part, along which the container longitudinal part (18) is flexible, and the front-end frame parts (12), on their upper and lower edges, in the proximity of their corners, are provided with projections (38) and recesses which, when several identical plastic containers (11) are stacked on top of each other, fit into each other in pairs, characterized in that the upwardly pointing projections (38) of the front end frame parts (12) each possess one molded groove (40) which is open toward the top, in which case the bottom area of the groove (40) proceeds substantially parallel to the upper edge of the front end frame parts (12) while the groove (40), in the projections (38) of the front end frame parts (12) is constructed so as to be substantially rectangular, in which case the two lateral areas of the groove (40) proceed vertically to the bottom area and the container is provided with a cover (28) having a pair of side edges disposed at a distance from each other and a pair of front-end edges disposed at a distance from each other, the front-end edges being provided with a great number of outwardly extending projections (35), while each front wall (12), within the area of its upper edge (13), possesses at least one upper peg (32), whose one retaining surface proceeds parallel to the upper edge (13) of the front wall (12), each upper peg (32) being disposed in such a way that it retains one of the cover projections (35) when the side edge of the cover is flush with the upper edge (13) of the front wall (12), and in that the peg (32) is offset with respect to the cover projection (35) when the side edge of the cover (28) is offset with respect to the edge of the side wall.
2. Plastic container according to Claim 1, characterized in that, underneath each upper peg (32), a lower peg (34) is disposed at a distance and in that a projection (35) of the cover (28) can be accommodated by the inter-space between the upper peg (32) and the lower peg (34).
3. Plastic container according to either Claim 1 or 2, characterized in that the cover (28) possesses a great number of ribs (19) proceeding parallel to each other as well as parallel to the side edge and in that one rib (19) each is in each case disposed so as to be flush with a cover projection (35).
4. Plastic container according to any of Claims 1 to 3, characterized in that the cover (28) provided with the ribs (19) is comprised of extruded plastic.
5. Plastic container according to any of Claims 1 to 4, characterized in that the front walls (12) are joined to the front-end edges of the longitudinal wall part (18) by means of vibratory welding.
6. Plastic container according to any of Claims 1 to 5, characterized in that the longitudinal wall part (18) with a pair of side edges disposed at a distance from each other and a pair of terminal edges disposed at a distance from each other, comprises a fixed part (18') and a detachably attached part (18").
7. Plastic container according to any of Claims 1 to 6, characterized in that the fixed part (18') of the longitudinal wall (18) is provided with a side part (46) connected to the side part (46) on one side and a lower lip (48) disposed on the other side of the bottom part and in that the detachably attached and removable part (18'a) of the longitudinal wall part (18), in order to close the other container side, is constructed in the form of a flat, rectangular plate with a first attachment means (49) for engaging into the lower lip (48) of the fixed part (18').
8. Plastic container according to Claim 7, characterized in that the first attachment means of the removable part (18'a) of the longitudinal wall part (18) is provided with a groove (49) for engaging into the lower lip portion (48) of the fixed part (18') of the longitudinal wall (18).
9. Plastic container according to Claim 8, characterized in that the cover (28) is provided with a springable lip (51) along a side edge for gripping and securing the edge of the side of the longitudinal wall part (18) located opposite the side (46), and in that, in the detachable part (18'a) of the longitudinal wall (18), a second attachment means (50) is provided for engaging into the cover (28).
10. Plastic container according to Claim 9, characterized in that the second attachment means of the detachable part (18'a) of the longitudinal wall (18) is provided with a springable, hook-shaped edge (50) for engaging over the lip (51) and for securing the cover (28).
11. Plastic container according to any of Claims 6 to 10, characterized in that the cover (28) and the detachable part (18'a) of the longitudinal wall (18) each are provided with means for mutual interlocking.
12. Plastic container according to any of Claims 1 to 11, characterized in that the insert (25) on the front wall (12) is provided with a holding means for identification cards.
13. Plastic container according to Claim 12, characterized an that the insert (25) is secured to the casting which forms the front wall (12) by means of vibratory welding.
14. Plastic container according to any of Claims 1 to 13, characterized in that the fixed part (18') of the longitudinal wall (18) has a first side part (46), a bottom part (47) connected to the same and a side part (18") connected to the bottom part (47) that is located opposite the first side part (46), while an approximately rectangular opening (136) is constructed in the side part (18"), and in that the opening (136) can be closed with the aid of a plane rectangular plate (138).
15. Plastic container according to Claim 14, characterized in that, in the side wall (18") of the center wall (18), at least one perforation (144) is provided next to the contact point between the bottom (47) and the side part (18") of the center part (18) and in that the rectangularly configured plate (138) is provided with projections (146) for engaging into the perforations (144) in the bottom part (18") when the removable part (138) is inserted into the container in order to provide a closure.
16. Plastic container according to any of Claims 1 to 5, characterized in that each of the plastic front walls (12) is provided with a rail attached to the same which, for the formation of a channel for receiving the removable part (138) for the provision of a closure for the container, extends into the container parallelly and at a distance from the second side.
17. Plastic container according to any of Claims 1 to 16, characterized in that the container (11) has a cover (28) with a springable lip (29) for gripping and securing the upper terminal edge (30) of the side wall (18).
18. Plastic container according to any of Claims 1 to 17, characterized in that the cover, the second side located opposite the front end and the removable part of the side wall each are provided with ameans for mutual interlocking.