NL8600505A - STRUCTURAL COMPOSITION OF NAILABLE PARTS WITH CRAM ELEMENTS. - Google Patents

Description

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Hw / Mv / oe Groot 3

Construction composed of nailable parts with staple element and

The invention relates to a construction composed of parts of a nailable material, for instance wood, in which two or more parts are attached to each other by metal connecting elements provided with 5 flat parts with staples extracted from slotted openings and bent outwards into the material .

Timber structures assembled with staple plates are known in many embodiments. However, it is usual to arrange the staple plates in such a way that they are mainly loaded on shear forces. However, problems can arise with tensile loads because the adhesion between the staples and the wood material is not sufficient. This is partly because the hitherto usual staple plates have the same orientation over the entire surface, which does not always correspond with the grain direction of the wooden parts.

The object of the invention is to obviate the above-mentioned drawback by providing a construction which is distinguished in that the longitudinal direction of the slots in one flat part deviates from that in another flat part of the metal connecting element. The invention is based on the idea that the staples recovered from the slots have a predominantly flat shape with a thickness equal to the plate material of the connecting element. The largest width of the staple is perpendicular to the longitudinal direction of the slot. The orientation of the slot therefore determines the orientation of the staple.

The invention furthermore relates to composite constructions of nailable parts, wherein according to the invention at least one part is designed as a supporting plate provided with plan-parallel layers.

Reinforcement layers can be provided between the layers to strengthen the support plate.

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Applied with. staple plates, the invention proposes such a dimensioning of the staples that they extend through the reinforcement layer. This means that a direct force transfer between the reinforcement layer and the staple plate is achieved, which, moreover, can lead to optimum constructions in terms of weight and strength with the aforementioned correct orientation.

The connecting elements provided with flat parts with staples bent therefrom can be assembled in various ways according to the invention. For example, the flat parts can be in line with each other, be spaced apart via a spacer or be bonded to one another directly by means of appropriate connections, cold or warm, with the staples protruding to either side.

The invention is further elucidated in the figure description below of a number of exemplary embodiments.

In the drawing shows:

Fig. 1 is a perspective view of a composite construction in the form of a pallet (pallet) provided with a number of connecting staple elements according to the invention,

Fig. 2 a perspective view of a tipping section of a pallet in another embodiment of the connecting staple element,

Fig. 3 is a front view of the pallet design of FIG. 2,

Fig. 4 is a perspective view of the connecting staple element of FIG. 2, 3, 30; FIG. 5 is a perspective view of a third embodiment of a connecting staple element according to the invention.

Fig. 6 a perspective view of a second embodiment of a pallet (pallet) provided with a support frame with honeycomb body and stapling elements according to the invention incorporated therein,

Fig. 7 a staple element used in the composite construction of FIG. 6. i -3-

Fig. 8 is a perspective view of the underside of the support frame of FIG. 6 with stapling elements mounted thereon.

The pallet of fig. 1 mainly consists of a plate-shaped upper deck 1, at the corners of which a U-shaped staple element 2 according to the invention is arranged.

A connecting strip, in the form of a board 3, is attached to the underside of two staple elements 2 each.

The U-shaped staple element consists of two paral-10 lily flat parts 4, 5, which parts are each provided with staples or pins 6 extracted and bent from the plate part. The side edge of each plate-shaped part 4, 5 is connected to a spacer element in the shape of a plate 7, which consists of the same material as the plate part 4, 5. Thanks to this U-shaped construction, a pallet can be manufactured in a simple manner, which, in addition to a particularly high strength, also involves a particularly simple manner of manufacture. After all, the elements 1 and 3 need to be pressed together by intermediate plates of the staple elements 2, for example by means of a press, so that the pallet is manufactured almost in one operation.

The top plate 1 can be layered and for instance have an intermediate layer which consists of a reinforcement 8 of, for example, plastic wires, see the detail in fig. 2. By choosing the length of the staples 6 on the plate-shaped part 5 such that these is greater than the distance between the reinforcement layer and the underside of the plate 1, a direct connection is established between the staples 6 and the reinforcement layer 8, which allows a particularly large force transfer. This provides a particularly strong pallet that is resistant to large loads.

Fig. 2, 3 and 4 show an embodiment in which a pallet, also provided with a top plate 1, is designed at the bottom in known manner with blocks 9, which can be fastened to the plate 1 by means of a plate-shaped staple element 10. This staple-shaped plate element according to Fig. 4 is distinguished by two plate parts 4, 5 fastened to each other, which are designed in a known manner with Λ. / ¾. -4- bent-out pins from the plate acting as staples 6. The plates 4 and 5 are pre-attached firmly to each other by, for example, rivets 11, or interlocking deformations, which are also known commercially under the name 5 "clinch -link". The material of, for example, plate part 5 is hereby pressed under great force into the material of plate part 4 such that the material flows into one another.

By pressing the blocks 9, the staple elements 10 and the board 1 together again in a press, a pallet can be made in one operation. It will be clear that renovation of the pallet described above can also be carried out easily.

Fig. 5 shows a perspective view of a third possible embodiment, wherein the spacer body 12 between the plate parts 4, 5 is also plate-shaped, but extends between two parallel side edges of the plate parts 4, 5 which are staggered with each other. construction possible for transporting shock-sensitive loads.

It is noted that the orientation of the staples 6 in plate 4, respectively. 5 differs from one another. The staples 6 recovered from the elongated slots 13 are perpendicular to each other in the embodiment according to Figs. 4 and 5, which means that the substantially flat staples 6 are also perpendicular to each other. Due to a correct orientation, the flat staple 6 can also have been correctly guided through, for example, the reinforcement layer 8, which should preferably be perpendicular to the greatest tensile force direction. An additional reinforcing element is hereby introduced with the reinforcement layer 8.

Furthermore, the staples 6 should preferably be transverse to the grain direction of, for example, the wooden block 9, see fig. 3, which offers a great resistance against loosening.

Fig. 6 shows an embodiment of a composite construction as a pallet, which is provided with a support frame 14, consisting of longitudinal and cross beams of fissile material, for instance wood. In the corners, the longitudinal and cross members of the support frame 14 are fixed by. - / - - / -5 means of a staple plate element 15, see fig. 7 and 8, which will be explained in more detail below. Within the support frame 14, a honeycomb body 16 is arranged such that the walls of each cell are perpendicular to the bottom and top plate 17, respectively, to be connected to the support frame 14. 18 shown. Such a construction as a carrier plate for a pallet is particularly light, yet sturdy, and can be manufactured from relatively inexpensive material.

A wooden block 9 is arranged in the corners 10 in a manner corresponding to fig. 2, which can be connected to the supporting plate 14-18 by means of the clamping elements shown in fig. 7 and 8.

Fig. 7 shows the staple element used in the embodiment of FIG. 6. The staple element here again consists of a bottom plate 19, the size of which corresponds at most to that of the block 9, and in which the direction of the slots 13 and therefore the orientation of the the staple 6 obtained therefrom corresponds to the desired position for the block 9.

A plate 20 is provided on the bottom plate by means of sutures or rivets 11, as well as a second plate 21, the orientation of the slots 13 and therefore of the staples 6 obtained therefrom. This is such that the staples have the correct orientation with respect to the grain direction of the longitudinal and cross members 25 of the support frame 17, see Fig. 8.

Although in the embodiment according to Fig. 7 the clamping plate parts for the cross and longitudinal beams for the supporting frame 17 are two separate plates, it will be clear that this can also be manufactured in one plate-shaped element.

With the various embodiments shown above of connecting elements with flat parts such as staple plates, a large number of differently assembled constructions can be made. Many embodiments are therefore possible within the scope of the invention. Thus, the plate 35 parts 4, 5 resp. 19, 20 and 21 are fastened together by other connecting elements, for example rods which can be welded, riveted with their head end to the plates, etc.

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Claims (9)

1. Construction, composed of parts of nailable material, for example wood, in which two or more parts are fastened together by metal connecting elements provided with flat parts with staples recessed from slotted openings and bent outwardly to be fed into the material, with characterized in that the longitudinal direction of the slots in one flat part deviates from that in another flat part. Construction according to claim 1, characterized in that the flat parts are mutually connected by a connecting body. Construction according to claims 1 and 2, characterized in that the flat parts lie in the same plane. Construction as claimed in claims 1 and 2, characterized in that the flat parts with the staples pointing outwards are directly attached to each other. 5. Construction, composed of parts of nailable material, for example wood, in which two or more parts are fastened together by metal connecting elements provided with flat parts with staples recessed from slotted openings and bent outwardly to be fed into the material, characterized by a part as a supporting plate provided with plan-parallel layers. Construction according to claim 5, characterized in that a reinforcement layer is arranged between adjacent layers of the supporting plate. Construction according to claim 6, characterized in that the staples extend through the reinforcement layer. Construction according to claim 5 or 6, characterized in that a honeycomb body and a supporting frame enclosing that honeycomb body are arranged between two layers. Construction according to claims 1-4 and 8, characterized in that the staples extend into the support frame. ------ <»" · ", I * • · · ··; 1 / -