JP3172864U - Plastic pallet - Google Patents

Abstract

To provide a plastic pallet capable of fixedly connecting a cover plate and a base component constituting the plastic pallet and then separating them.
A plastic pallet includes a clip-shaped interlocking device that interlocks or connects a cover plate and a base part to each other to form a pallet, the interlocking devices facing each other. Formed from a pair of arranged interlocking bars 12a, 12b, configured so that the interlocking of the interlocking bars relative to the interlocking protrusions 26a, 26b can be released to separate the cover plate 2 from the base part 4 Has been.
[Selection] Figure 2

Description

  The invention relates to a plastic pallet according to the preamble of claim 1 and thus to a multi-part, in particular two-part plastic pallet.

  For example, pallets such as the so-called Europool pallets are still often made of wood, which can reduce their weight drawbacks, especially when the trees are wet or drenched by rain or moisture. Have. This results in considerable transport weight. This is because this type of pallet is usually loaded with heavy products or articles to be stacked. Since this type of pallet is recycled and reused after cleaning, especially in the context of so-called pallet pools, more plastic pallets are emerging on the market. These pallets are slightly more expensive to manufacture than wooden pallets, but they can also be used for many years under the harshest conditions, and this type of pallet should normally maintain a useful life of up to 10 years or more. It is.

  These advantages of plastic pallets amortize the increased production costs over conventional wooden pallets after several years. Such pallets made from plastic materials in a multi-part embodiment, in particular a two-part embodiment, are already known (DE 10 2007 020 277 A1). For this, the pallet is made up of two parts: a cover plate that includes a mounting surface and a base plate that forms a base having a support surface. The cover plate and the base are spaced apart from each other via a support base, the support base being arranged along the circumference and in the corners so that the opening for engagement by the fork of a transport device, in particular a forklift, is placed in them. Specify between. A known plastic pallet in which the upper part and the base part are integrally formed is locked to each other via a plurality of interlocking bars for each supporting base, and the interlocking bar has a cover plate as a base part. Is provided on the upper support member of the support base connected to the lower support member and also on the lower support member. In addition to manufacturing complexity, assembly is also more difficult. This is because it is necessary to insert parts precisely into each other and snap them together under each pressure. The pallet is thus assembled to form parts that cannot be separated.

  On the other hand, it should be taken into account that damage to the pallet parts should be expected over a long service life of 10 years or more. Thus, despite the desirable fixed connection of the plastic pallet including the upper part and the base part, the inventor can later separate these parts without compromising the productivity of the pallet or pallet elements and their assembly. We find it useful to be useful.

  According to the invention, this object is achieved through the measures described in claim 1, and advantageous embodiments are characterized by the structure of the dependent claims.

  According to this device, one or two interlocking devices are provided for each support base, and it is advantageous but not essential that all the support bases are configured with their respective interlocking devices. . The interlocking devices are thus each formed by a pair of cooperating interlocking bars arranged opposite to each other, so that they preferably form an interlocking shoulder that reaches behind the interlocking member. Face each other. The interlocking member is formed on the other support member, and preferably has an arrow shape when the cover plate and the base part are assembled. The arrow-shaped configuration of the interlocking member forms an interlocking shoulder on both sides below the laterally protruding arrow tongue, and the interlocking shoulder of the interlocking bar reaches behind the interlocking shoulder . The interlocking bar is essentially elongated and extends vertically, i.e. perpendicular to the mounting surface of the pallet. Preferably, the interlocking bar is configured with flexibility, which is advantageously provided by a taper above the shoulder, particularly preferably by a circular segment-shaped recess, Prevent stress and breakage. This flexible configuration facilitates the unlocking of the interlocking bar from the interlocking protrusion again. For this reason, a reach-through opening is advantageously provided in the normally closed base of the lower support base. The reach-through opening is aligned with the interlocking bar, and a simple tool for spreading, which can be a simple rod, can be passed through the reach-through opening. For this reason, locking can be released as desired, so that the cover plate and the base part can be easily separated. Therefore, damaged parts can be easily replaced without scraping the entire pallet.

  Advantageously, the interlocking member is formed in the form of an arrow-like configuration and is therefore particularly preferably constructed integrally with the wall of the support member, which cooperates with the solid interconnections Reliable locking is achieved via two interlocking bars. For this reason, it is also preferred that the interlocking bar is constructed proximal to the respective wall of the other support member. In another preferred embodiment, the interlocking bar is configured away from the support base wall and is integrally formed on the bottom side of the cover plate, which is advantageous for flexibility to assist in unlocking. In certain aspects, flexibility is achieved through a suitable taper provided above the locking shoulder. The arrow shape is also a symbol for inserting parts, and is useful for assembly.

  According to an advantageous embodiment of the invention, a tool is required to separate the mutually interlocking pallet parts, i.e. the cover plate and the base plate. The tool is preferably configured as a U-shaped bracket with two offset legs, which can be inserted into the reach-through opening and the freedom of the interlocking bar of the interlocking bar pair of the other plate part It is arrange | positioned facing the edge. Therefore, the free ends of the interlocking bars are pushed away from each other, so that the interlocking member is released at the position where the tool is inserted or the locking of the interlocking member is released. For this reason, the interlocking bar is preferably configured with flexibility, which is realized in particular by the length of the interlocking bar which is configured to project freely. By driving or inserting a tool or tool leg, the interlocking bars of the interlocking bar pair are moved away from each other to release the interlocking member, thus separating the cover part from the base part, or The reverse can be facilitated.

  Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.

1 is a perspective view of a plastic pallet according to the present invention including an upper part and a base part. FIG. It is a figure which shows the detail in the corner | angular part of the pallet shown in FIG. 1, which shows an upper part and a lower part separately. FIG. 2 is a schematic view of a corner portion of a pallet according to the present invention in an unlocked functional position. Fig. 4 shows further locking starting from the diagram of Fig. 3; Fig. 4 shows further locking starting from the diagram of Fig. 3; FIG. 4 is a partial perspective view of the system including the tool to be opened, in a partial view prior to opening the lock. FIG. 7 is a view similar to FIG. 6 using an engagement tool. FIG. 5 is a view of a portion of the pallet from the base to show the engagement opening for the tool.

  FIG. 1 shows an embodiment of a plastic pallet 1 according to the invention formed from a cover plate 2 having a mounting surface 3 and a base part 4. The cover plate 2 and the base part 4 are connected at a distance from each other via a support base, usually indicated as 6, and the support base 6, possibly together with support rails 8 connecting the support bases 6, together with the base A part 4 is formed. Between the support bases 6 forms an opening 100 for engagement of a typical transport device, in particular a fork (not shown) of a forklift. It should be understood that the perspective view of FIG. 1 is a cross-sectional view at the leading edge, so that the internal void of the support member 6, which is a configured cavity, is visible. For this reason, the entire support base in cross section is not shown.

  FIG. 2 shows in detail the corner of the pallet according to FIG. 1 with the cover plate 2 separated from the base part 4 and shows the start of interlocking. As is apparent from FIG. 2, the support member is divided into two to form a pair of support members including a lower support member 6a and an upper support member 6b, and the support members 6a and 6b will be described below. To collaborate. The pallet 1 is divided at the portion of the support member and the partition plane extends essentially parallel to the mounting surface 3, but this is not essential.

  Each support base 6 formed from aligned support members 6a and 6b includes at least one, preferably two interlocking devices 10, which here are two interlocking devices, each arranged opposite to each other. It is constituted by bars 12a and 12b. The interlocking bar forms the interlocking device 10 and is preferably disposed inside the upper support member 6b which is an integral part of the cover plate 2. Interlocking bars 12a and 12b whose lower ends project downward beyond the lower edge surface 14 of the upper support member 6b are disposed adjacent to the support wall 16a of the upper support member 6b, and each interlocking bar 12a or 12b includes one or more interlocking shoulders 18a or 18b disposed on the inside, i.e., on opposing interlocking bars. When viewed between the interlocking shoulders 18a or 18b, i.e. in the direction of the mounting surface 3, each interlocking bar includes a contraction to configure the interlocking bar in a flexible manner. In the illustrated embodiment, the constriction is formed by circular segment-shaped recesses 20a and 20b that taper the interlocking bar above the interlocking shoulder 18a or 18b, so that the interlocking shoulder is It has flexibility for the reasons described below. This helps to prevent breakage of the interlocking bar when the cover plate is separated from the base part 4.

  In the base part, an arrow-shaped interlocking member is preferably formed on a support member 6 a which is preferably formed integrally with the base part 4. When an interlocking member is described for the support base 6, according to the above embodiment, one respective support base or two interlocking bar pairs are provided, so preferably two interlocking bar pairs are provided for each support base. In this case, the two interlocking members 22 are the same. The engagement member 22 is integrally formed with a wall 16b that applies to the illustrated embodiment and, due to the arrow shape, two arrow tongues 24a projecting outwardly forming the interlocking protrusions 26a and 26b and 24b is included on the opposite side. As is apparent from FIG. 2, when the upper cover plate 2 is placed on the lower base part, clip-type locking is provided between the interlocking shoulders 18a, 18b and the interlocking protrusions 26a, 26b. Thus, the interlocking shoulder 18a or 18b reaches behind the respective interlocking projection, which facilitates the interlocking of the cover plate 2 with the lower base part. As already mentioned above, FIG. 2 shows only one interlocking bar pair 12a, 12b, but preferably two interlocking bar pairs are provided facing each other. However, for clarity it is not shown in FIG. 2 and other drawings.

  In addition, two support bars 28 that are offset from each other and project inward from the wall 16c are provided on two opposite side walls of the lower support member 6a, with the centering bevel 30 on the upper side. And interacts with the support bar 32 provided on the upper support member 6b. Each support bar is provided with a groove 344 at its lower end. The support bar is used on the one hand to facilitate assembly and on the other hand, based on the nested insertion of the lower support bar into the upper support bar by the upper groove 344, increases the shape stability of the assembled pallet. Used for.

  For this purpose, it is also advantageous that a respective additional support bar 34 is provided in the corner as shown in FIG. 2, during insertion each upper support bar 36 is arranged above the support bar 34, For this reason, two stop parts contact each other.

  Finally, one of the two opposing reach-through openings 38 is provided in a schematic manner in the substantially closed base of the lower support member 6a of FIG. 38 is arranged on both sides in alignment with the interlocking bars 12a and 12b. The interlocking bar is used to pull through a spreading tool to push the pair of engaging bars 12a and 12b cooperating as a locking device outwardly so that the interlocking is released. For this reason, it is provided in a simple manner to separate the cover plate 2 from the base part 4, especially when one of the parts is damaged, so that the damaged part can be replaced with a new part. . In view of the fact that this type of pallet has a useful life of more than 10 years, this is an essential aspect of the invention.

  It is also clearly within the scope of the present invention that an engagement bar preferably provided on the upper support member 6b is also provided on the lower support member 6a, in which case an arrow-shaped member 22 is provided on the upper support member 6b. is there. In that case, a reach-through opening would be provided in the portion of the mounting surface 3 to facilitate release of the support base interlock. With the configuration shown, it is very easy to plug and connect the pallet from the base part and the cover part, especially the fact that the interlocking bars are arranged facing each other and fine members can be cut down from both sides Provides a tight interlocking via a clip-shaped connection. At the same time, stability is also provided by the support bar combined with the provided interlocking. Furthermore, it is advantageous that assembly is facilitated via the insertion bevel, in particular that the interlocking can be provided in a simple manner via the reach-through opening provided here.

  FIG. 6 shows one embodiment of a tool configured as a U-shaped bracket 40 for opening an interlocking device formed from a pair of interlocking bars 12a, 12b arranged opposite each other. The U-shaped bracket includes two elongate arms 42 that are aligned parallel to each other and are spaced apart from each other by a distance corresponding to the distance of two respective through openings 38 not shown in FIG. ing. The through-opening 38 is arranged behind a round edge 43 formed upwardly by the lower base surface towards the interlocking bar, and the reach-through opening is not visible in this view. However, an opening such as a rounded edge 43 is apparent from FIG. 8, in which the through opening 38 is shown with the end of the already inserted leg of the tool 40. In addition to the parallel arms 42, the bracket 40 also includes a bar 44 that connects the two arms at one end and is used to grip the tool. The tool 40 is inserted from below so that the arm 42 extends through the through opening 38 as shown in FIG. 7 and engages the interlocking bars 12a, 12b. The rounded free ends of the arms 42, which may alternatively be provided with respective frames or bevels, are arranged on both sides, interlocking, arranged inwardly towards each other from the bottom to the top of FIGS. It engages with inclined surfaces 46a and 46b at the lower ends of the bars 12a and 12b. Through the engagement between the arm 42 and the inclined surfaces 46a and 46b, the inclined surfaces are pushed away from each other as the tool is pushed in, so that the arrow-shaped engaging member is released and the interlocking is released. Two for each engagement device are provided, and in the illustrated embodiment, a total of two pairs of cooperating through openings 38 are provided for each support base. By inserting or pushing in the tool 40, release of all interlocking devices is provided and the transport pallet can be separated into two parts. For this reason, exchange is easily possible.

  It should be understood that 9/4 of the pallet is shown in FIG. 8, so that the support base is only partially visible, either 1/2 or 1/4.

  A simple unlocking of the interlocking device is provided via the tool so that the cover plate can be removed from the base plate. Obviously, other tool configurations are conceivable and suitable.

  1: Pallet, 2: Cover plate, 3: Mounting surface, 4: Base component, 6: Support base, 6a, 6b: Support member, 12a, 12b: Interlocking bar, 18a, 18b: Interlocking shoulder, 26a, 26b: Interlocking protrusion.

Claims (15)

A plastic pallet comprising a cover plate (2) forming a mounting surface (3) for receiving a product or similar article and a base part (4) forming a stand surface for the pallet (1), The base parts are arranged at least at the edges and corners of the pallet (1) and connected to the cover plate via a support base arranged at a distance from each other to form a pallet (1) and supported The bases form an opening for engaging a transport device, in particular a fork of a forklift, between each other, and the support base (6) is preferably a separating plane extending substantially parallel to the mounting surface, The support member (6a, 6b) is divided into an upper support member (6b) disposed on the bottom side of the plate (2) and a lower support member (6a) disposed on the base part (4). Headed oriented in pairs, includes the interlocking device interlock or connection clip shapes cover plate (2) the base part and (4) to form a pallet (1),
At least one, preferably all of the support bases (6a, b) formed by one support member pair each include one or two interlocking devices, each of which is a pair arranged opposite to each other Interlocking bars (12a, 12b), each interlocking bar including an interlocking shoulder (18a, 18b), which in the longitudinal direction of the supporting member (6a, 6b) has a respective supporting member (6b) Beyond the interlocking protrusions (26a, 26b) of the opposing support member (6a) like a clip with their shoulders (18a, 18b) in the locked position The interlocking bars (12a, 12b) and the respective support member pairs (6a, 6b) Interlocking bar interlocking for interlocking projections, such that it can be released to separate the cover plate (2) from the base component (4) is configured, plastic pallets.   One or two pairs of interlocking bars (12a, 12b) of the support member pair (6) is constituted by a support member (6b) disposed on the cover plate (2), and the support member (6b) in the locked position. The pallet according to claim 1, wherein the pallet protrudes downwards beyond.   Each pair of interlocking bars (12a, 12b) is provided adjacent to the wall (16a) of the support member (6b). When there are two pairs of interlocking bars, each pair is adjacent to the opposing support member wall. The pallet according to claim 1 or 2.   The interlocking protrusions (26a, 26b) are formed on one or more walls (16b) of the opposing support member (6a), and the interlocking bar pairs (12a, 12b) are respectively formed on one or more walls. The pallet in any one of Claims 1-3 arrange | positioned in the aspect which adjoins.   The interlocking protrusions (26a, 26b) are preferably configured on an interlocking member (22) configured in the shape of an arrow, and the engaging protrusion is preferably an arrow tongue that protrudes laterally from the axis of the arrow. The pallet in any one of Claims 1-4 currently formed by the bottom side of (24a, 24b).   The interlocking bars (12a, 12b) of each interlocking bar pair are opposed to each other, especially in the form of a preferably segment-shaped recess (20a, 20b) behind the interlocking shoulders (18a, 18b). The pallet according to any one of claims 1 to 5, wherein the pallet is configured to be particularly flexible so as to include a taper that is arranged as described above.   Each support member (6a) disposed opposite the interlocking bar preferably has at least one, preferably two reach-through openings (38) for releasing the interlock, preferably in the base of the support member. The pallet according to claim 1, comprising:   Pallet according to claim 7, wherein two offset reach-through openings (38) are provided for each pair of interlocking bars (12a, 12b).   The pair of support members (6a, 6b) includes support bars (28, 32, 34, 36) disposed on the wall and projecting inwardly, and some of the support bars are in the longitudinal direction of the respective support members. 9. A projection as claimed in any of claims 1 to 8, which projects upward and can be telescopically inserted into a groove (344) or similar gap in a support bar (32) of another pair of support members during assembly. Palette.   The support bars (28, 34) are provided with centering bevels, and each of the centering bevels is preferably provided only on the bar of one support member, two to four for each support member (6a, 6b). 10. Pallet according to claim 9, wherein three, preferably three support bars (28, 34) are provided opposite to each other.   Pallet according to any of the preceding claims, wherein the cover plate (2) and / or the base part (4) are each integrally constructed from a plastic material by injection molding.   The interlocking bar (12a, 12b) of the interlocking bar pair is such that the ends of the interlocking bar of each interlocking bar pair (12a, 12b) are separated from each other so that the interlocking member (22) can be unlocked. 9. A pallet according to claim 8, wherein the pallet is configured to be sufficiently flexible so that it can be bent into an angle, and preferably all interlocking bar pairs of the pallet are configured accordingly.   Two pairs of interlocking bars per support base are provided opposite each other, preferably in the cover plate, and two offset reach-through openings (38) per pair of interlocking bars are preferably provided in the base part. The pallet according to claim 12, which is provided.   A tool (40) is provided to unlock the interlocking bar pair (12a, 12b), the tool includes two legs (42) that are offset from each other and associated with the interlocking bar pair. 14, 12 or 13, which can be inserted into two offset reach-through openings (38) and pushes the interlocking bars (12a, 12b) away from each other in the insertion position of the legs to the unlocked position. Pallet as described in.   The tool (40) is preferably formed by a U-shaped tool bracket having two legs (42) with rounded or beveled free ends, preferably an interlocking bar pair (12a, 12b). The free ends are provided on the sides oriented towards each other, and in order to unlock the interlocking member (22), an inclined surface (46a) for engagement with the leg (42) of the tool (40). 46b).