EP1080018B1 - Frame with an insert - Google Patents

Abstract

A frame for pallets includes a plurality of frame bars that define a surface of the frame to which a frame insert is secured in a manner enabling the frame insert to be loaded transversely within a plane of the frame. The frame insert is form-fittingly interlocked with at least one frame bar transversely to the plane of the frame.

Description

The invention relates to a frame with the Features of the preamble of claim 1.

From GB 1 331 806 is a frame with the aforementioned Features known. The frame insert is on the frame bars attached in a manner not described in detail.

From WO 95/21774 a collapsible box is known in which posts spaced apart from each other by cross boards are interconnected. The cross boards and the posts are locked in the longitudinal direction of the cross boards with the post.

In contrast, the invention is based on the object a frame with a frame insert with the aforementioned Features to improve so that less time and Cost of manufacturing the frames with frame insert is necessary and the production is simplified.

This task is characterized by the characteristics of the license plate of claim 1 solved.

Furthermore, the task is characterized by the characteristics of Characteristic of claim 2 solved.

For the invention it is important that alone the latching of the frame insert with the frame made of Frame bars is formed, the construction can hold. It is no further welding or riveting of the frame insert necessary on the frame, but for additional improvement stop without changing shapes as needed possible after locking. The assembly is simplified that the frame insert into the frame in one operation can be installed. Through the simple assembly is a wide range of variations for the Structure and materials of the frame bars and frame inserts given. For cleaning or exchanging frame inserts can be easily levered out without the Also need to replace the frame. The frame inserts are not damaged during installation and removal and can be reused become. With this locking technology different, especially not or only with strong materials that can be welded at different temperatures without any problems be connected to each other. The frame inserts can can also be used and held with play so that materials, which have a different elasticity or expansion properties as the frame construction, as the frame insert can be used.

Since the frame insert contrary to its direction of use the frame is supported against pushing through, this offers an advantageous embodiment of the frame. Otherwise it would be it may be at a slight angle with the snap provided wall of the frame rod possible that the frame insert when inadvertently by the Frame is pushed through and finds no hold.

The frame is designed so that a locking recess wall of one of the frame rods pointed Forms an angle with the direction of use of the frame insert. Countered by a direction of use of the frame insert rising edge or an acute angle pushing the frame insert when inserting it into the Prevents frame and a form fit in the direction of push-through given. This is especially the case when the walls two mutually parallel frame rods each one pointed Angle with a direction of use of the frame insert in practical form a mirror image arrangement. This makes them Clearances between the frame bars at the two end edges of the opposite parallel walls. The Direction of use is preferably in the direction of narrowing Arrange levels.

Supporting projections are through on hollow frame profiles Co-extrude easy to manufacture and can be molded that they are not a hindrance with a good grip for inserting and moving the goods within one the frame and the frame inserts for Display pallets.

The frame can be designed so that it is rectangular and its frame insert on mutually parallel frame bars is locked. The rectangular frame shape allows a particularly simple assembly of the frame insert and Connection of different frames with each other and with Attachment on a rectangular pallet. For a sufficient Holding the frame insert is essentially a latching sufficient on opposite parallel frame bars. The frame insert can be easily latched in and sits in a one-piece as well as in a multi-piece Frame fixed, which consists of several frame bars both at blunt cuts as well as mitred cuts Welds or with corner connectors can be made.

It is advantageous to design a frame such that the locking recess of the frame rod extends longitudinally and the frame insert with an insert edge in this recess intervenes. A longitudinal recess is in a frame rod, e.g. made from a hollow profile was manufactured with little effort. extends the locking recess is over the entire frame rod a variable arrangement of the insert within the frame possible if it is shorter than the frame bar. It can also a frame insert that can be moved in the frame after insertion be used. The insert edge of the frame insert is in this arrangement easy to manufacture.

It is advantageous if the frame insert is thin Plate with insert edges formed by bends. Bends can be made by bending or in a rolling process at e.g. Produce sheets easily. They are not complicated Moldings necessary.

An advantageous embodiment of the frame consists in that the locking recess on a parallel frame bar facing frame bar wall is present. In this way the frame insert can be installed between the two frame bars become. This facilitates a good positive fit. The overall construction has the same functionality shallow depth. This is especially true for essays for Pallets due to the reduced thickness of the frame side walls increased loading capacity desirable.

It is advantageous if the locking recess has the cross-sectional shape has an engaging insert edge that if necessary with the adjoining surface of the locking recess having the same frame rod. To this It is a good form fit of the frame insert to the frame bar wall given. The locking recess and the insert edge complement each other to a smooth surface. When moving of goods to be transported in one of these frame parts composite pallet attachment remain the goods in this way do not hang on any excess. It there is no protrusion of a part and therefore no can Fix water or dirt. The formation of creative Placement is prevented. Easy cleaning is possible. It also creates a good visual impression.

The frame is advantageously designed so that the insert edges the frame insert under tension in the locking recesses intervention. This is in addition to the form fit an additional hold by a through the recesses Increase in static friction due to a transverse pressure given to the direction of loading. This tension can affect each Load requirements e.g. when transporting goods be adjusted. The use of a prestressed frame insert is particularly elastic with metals or other Materials beneficial.

It is advantageous that the insert edges of the frame insert form an acute angle with its direction of use, which is larger in amount than the acute angle of the the respective corresponding recess of the wall of the Frame bar. This provides an easy way to get one To generate tension in the inserted state of the frame insert. This is particularly advantageous for metal sheets, to improve the grip of the frame insert.

An advantageous embodiment of the frame exists in that the frame insert with a smooth or cranked Insert edge in a recess formed as an insertion groove is plugged in. This type of disposition forms in particular in addition to the sloping walls on the insert side of the other frame bars of the frame one way, one secure positioning when manufacturing the frame with a frame insert before inserting the remaining edges of the Get frame insert. A cranked insert edge delivers especially a smooth finish at the transition from Frame insert to the frame bar.

It is advantageous if the frame insert is the frame surface only partially filled. This allows the items to be transported Well ventilated or also observed and controlled become. In particular, material can be saved and the total weight is reduced. In addition, the Assembly of the frame insert due to lower press-in forces facilitated.

The frame can be designed so that the frame insert is multi-part and its parts over the frame area are evenly distributed. The multiple parts of the frame insert provides a greater variable design option the device. When using sliding frame inserts can vary depending on your needs even after installation to be ordered. Through an even distribution the frame insert parts reached over the frame surface one a uniform absorption of the forces to be intercepted, the when using the frame e.g. for attachments for pallets may occur. It is also an attractive optical Impression guaranteed.

The frame insert is advantageously a hollow profile, that with its ends in recesses in the frame bars intervenes. The formation of the frame insert as a hollow profile ensures the weight of the Component good stability against both lateral forces also against longitudinal forces. It uses less material necessary and the hollow profile is proven by extrusion in Easy to manufacture. When the frame insert is pressed in takes the hollow profile in addition to the frame insert edges elastic deformation forces. So it's not in everyone If there is a constant constant preload on the frame insert necessary, but due to the hollow profile can deviations intercepted, e.g. through use different materials or shapes can occur. The hollow profile enables the use of the frame with the frame insert as a thermally insulating wall for temperature sensitive perishable goods. Furthermore, the stake of multi-part frame inserts distributed over the frame surface particularly advantageous in this form of the hollow profile, because the end edges are secure even with a small contact area let it snap into place.

It is advantageous if the insert edge of the frame insert inserted in an undercut of the frame rod is. The undercut ensures a better hold against slipping out of the frame insert against the direction of use and across it. The acute angle must be in this Case not necessarily with regard to an optimal one Halt have been selected, but can simpler manufacturing conditions be adjusted. When using the frame with the frame insert, e.g. with an attachment for pallets with Transporting heavier, bulky goods will be the frame inserts before being pushed out by displacing the Goods kept safe during transport.

The frame can be designed so that the frame insert from the recesses in line with walls of the Frame bars is held. This type of construction ensures that goods do not get caught when inserted into the box or no dirt or dirt difficult to remove with the Can connect frame with frame insert.

It is advantageous if the frame rods and / or the Frame insert made of metal or plastic. The Manufacture from metal or plastic ensures that the built up from these frames and the frame inserts Have attachments on pallets easily cleaned and safe and are hygienic. A structure made of metal or fiber-reinforced Plastic is also particularly resistant against the influence of external and internal forces. The plastic construction enables a very light construction, which especially for transportation in airplanes suitable is. Constructions of a frame are also advantageous with frame insert made of a combination of different Materials. The locking connection allows that one the most varied of materials without any problems and inexpensively can connect with each other as a frame insert or frame.

Another advantageous embodiment of the frame lies before when two or more frames through a coupling / negative feedback mechanism are composed of one U-profile located on an outer wall of a first frame and one on a frame outer wall of a second frame located, inserted into the U-profile. This enables a very variable construction of different Essays and frame constructions. The structure of the coupling mechanism guaranteed from U-profiles and inserted strips a stable hold and a good seal against Penetration of moisture. The simple assembly offers the possibility to place by stacking frames of the essay to save if the attachment is temporarily not needed.

For making a frame from several frame bars with a frame insert is a process with the features of the preamble of claim 19 proposed. Task is it, a simple, inexpensive joining process for manufacturing of frames with frame inserts.

The task is characterized by the characteristic features of the Claim 19 solved. This locking is compared to Welding or riveting in one step without time-consuming Equipment feasible. The joining method of locking enables very different types of machine Frame inserts and frames can be assembled. This Joining technology offers the particular advantage of manufacturing, that in a simple way with the frame insert can be connected to the frame. There are no increased requirements the surface quality or choice of material and material properties of the ones to be assembled Elements. The procedure does not exclude that other common joining methods to complement and improve the hold can also be applied.

Fig.1a

aus Rahmen und Rahmeneinsätzen zusammengebaute Seitenwände eines Palettenaufsatzes mit einem Längsschnitt durch zwei Rahmenstäbe und einen Rahmeneinsatz,

Fig.1b

den Zusammenbau eines Aufsatzes aus mehreren Rahmen,

Fig.2a

eine Detailvergrößerung eines Eckbereiches eines in einen Rahmen eingesetzten Rahmeneinsatzes,

Fig.2b

einen Rahmeneinsatz und den aus Rahmenstäben aufgebauten Rahmen vor dem Zusammenbau,

Fig.3a

einen Schnitt durch einen in einem Rahmen gehaltenen, vorgespannten Rahmeneinsatz,

Fig.3b

ein in einen Rahmen eingesetztes Hohlprofil,

Fig.4a,b

zwei Schnitte durch verschieden ausgestaltete Rastverbindungen,

Fig.5

einen segmentweise ausgefüllten Rahmen mit Kopplungsprofilen.

The invention is explained with reference to exemplary embodiments shown in the drawings. It shows:

1a

Side walls of a pallet attachment assembled from frames and frame inserts with a longitudinal section through two frame bars and a frame insert,

1b shows

the assembly of an essay from several frames,

2a

an enlarged detail of a corner area of a frame insert inserted in a frame,

2b

a frame insert and the frame constructed from frame bars before assembly,

3a

2 shows a section through a prestressed frame insert held in a frame,

3b

a hollow profile inserted in a frame,

4a, b

two cuts through differently designed locking connections,

Figure 5

a segment-filled frame with coupling profiles.

1a shows one of several frames with frame inserts 12 assembled attachment 5 for pallets 60 (Fig.1b). The frames of the designs shown here are rectangular educated. They are made of miter cut hollow profile bars composed. Another option is it to let the frame bars meet butt and then as with the miter cut frame bars to weld. But corner connectors can also be used become. One from a frame and a frame insert 12 formed side piece 15 is shown in section. It is 3a, b and 4a, b enlarged again and in different Embodiments shown in cross section.

The cross sections of the frame bars 10 are rectangular or have a light on the inner frame bar wall 16 Incline or an acute angle α (Fig.3a) with respect to Direction of use ER (Fig.2b) of the frame insert 12. The sloping frame bar wall 16 is with a recess 13 formed and the straight frame bar wall 16 'with a Einstecknut 19. The locking recesses 13 for inclined inner Frame bar walls 16 of the frame bars 10 or the straight ones inner frame bar walls 16 'of frame bars 10 with insertion grooves 19 for the insert edges 14 of the frame inserts 12 advantageously have undercuts or supportive Approaches to (Fig.4a, b). The frame surface 11 is with a thin, elongated frame insert 12 completely filled. The frame surface 11 in Figure 1a is in this case with the Frame level 11 'the same. The direction of use ER of the frame insert 12 is shown in Fig. 2b, 3a. It runs preferentially transverse to the frame surface 11, in the direction of the inner frame rod walls 16 formed taper. An end edge 14 of the frame insert 12 sits in one over the Frame rod 10 longitudinally extending recess 13 of an inner Frame bar wall 16 of a rectangular frame bar 10. The use of a frame insert 12 in a frame with a straight frame bar wall 16 'and several oblique frame bar walls 16, shown in Fig.4a, b, takes place in such a way that only the insert edge 14 intended for the straight wall 16 ' the frame insert 12 is inserted into the insertion groove 19 and the remaining insert edges 14 then in the locking recesses 13 of the sloping frame bar walls 16 are clipped.

For an improved and form-fitting hold of an attachment on the pallet 60 are on the frame rods 10, the the pallet 60 rest, tabs 30 attached such that they grasp the pallet 60 and thus a lateral displacement protection, ensure a positive fit for the attachment 5.

In Fig.1b is shown how the frame and frame insert 12 side walls formed using a coupling / negative feedback mechanism be assembled. This Mechanism consists of U-profiles 24 and strips 25, which Outer surfaces 23, 23 'of the frame rods 10 in the longitudinal direction are brought. In this way, frame parts can be used a U-profile 24 and frame parts with a bar 25 pushed together and a variably configurable frame attachment 5 form.

2a shows an enlarged detail of a corner area of the essay 5 from Fig.1a. The built-in frame insert 12 points at the corner, which is composed of two frame bars 10 is a split into two along the frame bars 10 running insert edges 14. On the corner there is of such a construction a spread end part, the the connecting seam of the frame bars 10, e.g. a weld leaves free.

Fig. 2b shows schematically the insertion of a frame insert 12 in a frame. All insert edges 14 are angled trained and at the same time snap into the recesses 13 of the inner sloping frame bar walls 16 of the frame on.

3a shows in more detail the insertion of one with a Angle β known frame insert 12 in the form of a sheet in a frame, formed from the frame rods 10 with angled Frame edges 14 on the walls 16 with the angle α. The Direction of use is marked with ER. The angle is α smaller than the angle β. This way the frame insert 12 put under tension when inserted into the frame. This provides greater liability and hence greater Durability or improved form fit in addition to by the oblique frame bar walls 16 and recesses 13 positive locking formed against slipping of the frame insert 12th

3b shows a in a frame rod 10 with its Front 20 inserted hollow profile. The hollow profile points a smaller thickness d than the thickness D of the frame bars 10 on. The locking recesses 13 on the oblique frame bar walls 16 have a projection of the thickness d of the hollow profile on the frame bar wall 16 corresponding length. In this way is the surface of the inner surface I of the frame with the frame insert 12 smooth and the profile can go to the outside A of the frame are held by the locking recesses 13.

4a, b shows two preferred forms of construction of opposite frame rods 10 with an oblique Frame bar wall 16 and a straight frame bar wall 16 '. The straight frame bar wall 16 has an insertion groove 19 into which a smooth (Fig.4a) or cranked (Fig.4b) insert edge 14 a frame insert 12 is inserted. The cranked insert edge 14 has the advantage of being smoother Transition on the inside I of the frame forms. This smooth one Transition is beneficial if sensitive goods are in the from the frame formed essay 5 are inserted do not get caught or with something stuck in the edges Dirt or water should come into contact.

Furthermore, in addition to the simple latching recess 13 oblique frame bar wall 16 of a frame bar 10 a Training shown that against the frame insert 12 Slides behind engaging support projection 22. Particularly in the case of non-prestressed frame insert plates 12 it is advantageous to additionally through the locking recess 13 an undercut 21 of the oblique frame bar wall 16 of the Secure frame rod 10 against slipping out. It is advantageous, a frame bar 10 with the straight inner frame bar wall Arrange 16 'in the frame so that the frame insert 12 first insert into the slot 19 when installing and then in the locking recesses 13 under tension can snap into place. But there is also one on all four sides engaging under force with the beveled, angled edges 14 conceivable, as shown in Fig.2b, 3a.

5 shows a multi-part frame insert 12, the Individual parts evenly distributed over the frame surface 11 are and on opposite parallel frame bars 10 can be snapped into the locking recesses 13. Molded snap edges can be used. U-profiles 24 are arranged on the outside 23 of the frame rods 10. They serve in conjunction with the strips 25, such as already described above, as a coupling / negative feedback mechanism when building pallet attachments 5 from frames with Frame inserts 12. The frame or side walls are with secured by conventional means against falling apart, e.g. by strapping or fasteners.

Claims (17)

1. Frame, in particular a sidewall frame for pallets which is composed of a plurality of frame bars (10) which delimit a frame plane (11'), having a frame insert (12) which is disposed in the frame plane (11'), is attached to the frame bars (10) and can be loaded transversely with respect to the frame plane (11'), characterised in that the frame insert (12) is interlocked with at least one frame bar (10) in a positive manner thus overcoming pressing-in forces directed transversely with respect to the frame plane, that the frame insert (12) is supported in a direction opposite its insertion direction (ER) by the frame to prevent it being pushed through, and that a wall (16), which comprises a latching recess (13), of one of the frame bars (10) forms an acute angle (α) with the insertion direction (ER) of the frame insert (12).
2. Frame, in particular a sidewall frame for pallets which is composed of a plurality of frame bars (10) which delimit a frame plane (11'), having a frame insert (12) which is disposed in the frame plane (11'), is attached to the frame bars (10) and can be loaded transversely with respect to the frame plane (11'), characterised in that the frame insert (12) is interlocked with at least one frame bar (10) in a positive manner thus overcoming pressing-in forces directed transversely with respect to the frame plane, for which reason a frame bar (10) which is formed as a hollow profile is provided on a frame bar wall (16), facing a parallel frame bar (10), with a latching recess (13), into which engages an insert edge (14) of an angle-bent part (15) of a thin plate which forms the frame insert (12), and the frame insert (12) is supported in a direction opposite its insertion direction (ER) by the frame to prevent it being pushed through, for which reason the frame bar (10) comprises a support projection (22) which engages behind the frame insert.
3. Frame according to claim 1 or 2, characterised in that it is rectangular and its frame insert (12) is interlocked on mutually parallel frame bars (10).
4. Frame according to any one of claims 1 to 3, characterised in that the latching recess (13) of the frame bar (10) extends in a longitudinal manner and the frame insert (12) engages with an insert edge (14) into this latching recess (13).
5. Frame according to any one of claims 1 to 4, characterised in that the latching recess (13) comprises the cross-sectional shape of an engaging insert edge (14) which corresponds as required with the adjoining surface of the frame bar (10) comprising the latching recess (13).
6. Frame according to any one of claims 1 to 5, characterised in that the walls (16) of two mutually parallel frame bars (10) each form an acute angle (α) with an insertion direction (ER) of the frame insert (12) in a practically mirror-inverted arrangement.
7. Frame according to any one of claims 1 to 6, characterised in that the insert edges (14) of the frame insert (12) engage in a prestressed manner into the latching recesses (13).
8. Frame according to any one of claims 1 to 7, characterised in that the insert edges (14) of the frame insert (12) together with its insertion direction (ER) form an acute angle (β) which is the same size as the acute angle (α) of the wall (16) of the frame bar (10) comprising the respective associated latching recess (13).
9. Frame according to any one of claims 1 to 8, characterised in that the frame insert (12) is inserted with a smooth or bent insert edge (14) into a latching recess (13) which is formed as an insertion groove (19).
10. Frame according to any one'of claims 1 to 9, characterised in that the frame insert (12) only partially fills the frame surface (11).
11. Frame according to any one of claims 1 to 10, characterised in that the frame insert (12) is formed in multiple parts and its parts are distributed uniformly over the frame surface (11).
12. Frame according to any one of claims 1 or 3 to 11, characterised in that the frame insert (12) is a hollow profile which engages with its front ends (20) into latching recesses (13) of the frame bars (10).
13. Frame according to any one of claims 1 to 12, characterised in that the insert edge (14) of the frame insert (12) is inserted into an undercut (21) of the frame bar (10).
14. Frame according to any one of claims 1 to 13, characterised in that the frame insert (12) is held by the latching recesses (13) in alignment with walls (16) of the frame bars (10).
15. Frame according to any one of claims 1 to 14, characterised in that the frame bars (10) and/or the frame insert (12) consist of metal or synthetic material.
16. Frame according to any one of claims 1 to 15, characterised in that two or several frames are connected by means of a coupling or counter-coupling mechanism, consisting of a U-profile (24), which is positioned on a frame outer wall (23) of a first frame, and of a strip (25) which is positioned on a frame outer wall (23') of a second frame and is pushed into the U-profile.
17. Method of producing a frame from a plurality of frame bars (10); having a frame insert (12), wherein the frame bars (10) are mutually connected at their ends and the frame insert (12) is installed between the frame bars (10), for the purpose of producing a frame, in particular a sidewall frame for pallets, wherein the frame bars (10) delimit a frame plane (11), in which is disposed the frame insert (12) which is attached to the frame bars (10) and can be loaded transversely with respect to the frame plane (11'), characterised in that the frame insert (12) is pushed in between the frame bars (10) by overcoming pressing-in forces directed transversely with respect to the frame plane and in so doing said frame insert is interlocked in a positive manner into a latching recess (13) of at least one frame bar (10) transversely with respect to the frame plane (11'), wherein the frame insert (12) is supported in a direction opposite its insertion direction (ER) by the frame to prevent it being pushed through, and wherein a wall (16), which comprises the latching recess (13), of one of the frame bars (10) forms an acute angle (α) with the insertion direction (ER) of the frame insert and/or wherein a frame bar (10) which is formed as a hollow profile, is provided on a frame bar wall (16), which faces a parallel frame bar (10), with a latching recess (13), into which engages an insert edge (14) of an angle-bent part (15) of a thin plate forming the frame insert (12), and said frame bar is provided with a support projection (22) which engages behind the frame insert.

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