PRESS-LOCKED GRATING

Abstract

A press locked grating, in particular for use as a shelf for plate or heavy-duty shelves, has two longitudinal sides and cross members and longitudinal members having an I-shaped profile arranged between the longitudinal sides and at right angles to each other. The longitudinal members are inserted or pressed into punched holes of the cross members open towards the grating upper side. The longitudinal sides are formed in cross-section as a profile that includes at least first and second orthogonal legs. Each cross member has a punched hole at each end, in which the first leg is arranged and firmly connected thereto by a connecting method. The first leg is inserted or pressed into the punched hole, thereby achieving a first connection of the profile to the cross member, and has at least one deformation, thereby fixing the insertion or press connection of the cross member to the profile.

Claims

1. A press locked grating, in particular for use as a shelf for plate shelves or heavy-duty shelves, with two longitudinal sides and cross members and longitudinal members arranged between the longitudinal sides, the cross members and the longitudinal members having an I-shaped profile, the longitudinal members being inserted or pressed into punched holes of the cross members which are open towards the upper side of the press locked grating, wherein the longitudinal members and the cross members are arranged at right angles to one another, and wherein the longitudinal sides are formed in cross-section as a profile, wherein the profile of the longitudinal sides comprises at least a first leg and a second leg arranged substantially at right angles to the first leg, wherein each of the cross members has a punched hole at each end, in which the first leg of the profile is arranged and is firmly connected thereto by a connecting method, wherein the first leg of the profile of the longitudinal sides is inserted or pressed into the punched hole, whereby a first connection of the profile of the longitudinal sides with the cross member is achieved, and by the subsequent introduction of deformations to the right and left of the cross member, preferably immediately adjacent to it, in the first leg of the profile of the longitudinal sides, a horizontal displacement of the components against each other is prevented, thus achieving a fixing of the plug-in or press connection of the cross member with the profile of the longitudinal sides.

2. The press locked grating according to claim 1, wherein the profile of the longitudinal sides is designed as a Z-profile, an L-profile or a polygonal profile, the Z-profile comprising a third leg arranged substantially parallel to the first leg and a second leg connecting the first and second legs, the L-profile comprises a first leg and a second leg arranged substantially perpendicular to the first leg, and the polygonal profile comprises a second leg arranged substantially parallel to the first leg, a connecting part connecting the first and second legs, and a third leg arranged substantially parallel to the connecting part, the third leg being connected to the free end of the second leg.

3-4. (canceled)

5. The press locked grating according to claim 1, wherein the press locked grating comprises steel, preferably pre-galvanized steel, stainless steel or aluminum.

6. The press locked grating according to claim 1, wherein the ratio of the bearing load of the press locked grating to the dead weight of the press locked grating is in the range of 10 to 200.

7. The press locked grating according to claim 1, wherein at least 70% of the area covered by the press locked grating is a free projection area.

8. The press locked grating according to claim 1, wherein at least one of the punched holes at the respective end of a cross member has an inlet contour with at least one baffle, thus enabling a centered insertion and a force-fit and/or form-fit connection of the first leg of the profile with the cross member.

9. The press locked grating according to claim 9, wherein the at least one punched hole at the respective end of the cross member is wedge-shaped.

10. A method of manufacturing a press locked grating, in particular for use as a shelf for plate shelves or heavy-duty shelves, with two longitudinal sides and cross members and longitudinal members arranged between the longitudinal sides, wherein the cross members and the longitudinal members have an I-shaped profile, wherein the longitudinal members are inserted or pressed into punched holes of the cross members which are open towards the upper side of the press locked grating, wherein the longitudinal members and the cross members are arranged at right angles to each other, and wherein the longitudinal sides are formed in cross-section as a profile, wherein the profile of the longitudinal sides comprises at least a first leg and a second leg arranged substantially at right angles to the first leg, wherein each of the cross members has at each end a punched hole in which the first leg of the profile of the longitudinal sides is arranged and is firmly connected thereto by a connecting method, wherein in a first step the first leg of the profile of the longitudinal sides is inserted or pressed into the punched hole, whereby a first connection of the profile of the longitudinal sides with the cross member is achieved, and subsequent deformations to the right and left of the cross member, preferably immediately adjacent to it, in the first leg of the profile of the longitudinal sides, thus preventing horizontal displacement of the components in relation to each other, so that the plug-in or press connection of the cross member with the profile of the longitudinal sides is fixed.

Description

[0025] In the following, examples of the invention are explained in more detail, but not limited to drawings. They show the following:

[0026] FIG. 1 a first variant of the press locked grating in perspective view,

[0027] FIG. 2 a detailed view of FIG. 1,

[0028] FIG. 3 a side view of the cross member,

[0029] FIG. 4 a detailed view of FIG. 2,

[0030] FIG. 5 the profile in a side view,

[0031] FIG. 6 the press locked grating in a side view,

[0032] FIG. 7 a detailed view of FIG. 6,

[0033] FIG. 8 a second variant of the press locked grating according to the invention in perspective view,

[0034] FIG. 9 a detailed view of FIG. 8,

[0035] FIG. 10 a side view of the cross member,

[0036] FIG. 11 a detailed view of FIG. 10,

[0037] FIG. 12 the profile in a side view.

[0038] FIGS. 1 to 7 show a first variant of the grating (1) according to the invention with two longitudinal sides (2a, 2b) and cross members (3a-3g) arranged between the longitudinal sides (2a, 2b) in perspective view. The longitudinal sides (2a, 2b) are designed in cross-section as a Z-profile, the Z-profile comprising a first leg (Z1), a second leg (Z2) arranged substantially parallel to the first leg, and a connecting part (Z3) connecting the first and second legs. The cross members (3a) have an I-shaped profile in cross-section.

[0039] In FIG. 2, the connection of a cross member (3b) with a longitudinal side (2a), which is designed as a Z-profile in cross-section, is shown enlarged in perspective view. As shown, the first leg (Z1) of the Z-profile is inserted or pressed into the punched holes of the cross beam at one end (E1) of the cross member. Since the cross member (3b) is I-shaped in cross-section, the cross member has two punched holes at each end. The punched holes preferably have a baffle and/or are wedge-shaped. By inserting or pressing the first leg (Z1) of the Z-profile into the punched holes of the cross member (3b), the components (cross member and longitudinal side) are fixed against each other. The subsequent introduction of deformations (V1, V3), for example to the right and left of the cross member, preferably directly next to it, into the first leg (Z1) of the profile prevents a horizontal displacement of the components relative to each other and also ensures that the subsequent deformation of the first leg (Z1) causes the first leg (Z1) to be vertically deformed or wedged in the punched area. The latter prevents the first leg (Z1) from being pulled out of the punched holes of the cross member.

[0040] FIG. 3 shows a cross member, I-shaped in cross-section, with at least two punched holes at each end (E1, E2), in perspective view. It is provided that at least one of the punched holes (3b) is wedge-shaped at the respective end (E1, E2).

[0041] FIG. 4 shows an enlarged section of the I-shaped cross member from FIG. 3 with a baffle-shaped punched hole (4a) at the enlarged end (El).

[0042] FIG. 5 shows the Z-profile in a side view with the first leg (Z1) at one end, the second leg (Z2) at the other end and the third leg (Z3) connecting them.

[0043] FIG. 6 shows the press locked grating in a side view. It can be seen that the Z-profile (2a) is arranged with its first leg (Z1) in the punched hole and is fixed there. The deformations (V) can be introduced into the longitudinal side both (temporally) before and after the connection with the cross member.

[0044] FIG. 7 shows an enlarged section of the Z-profile longitudinal side (2a) of FIG. 6.

[0045] FIGS. 8 to 12 show a second variant of the invention. In this variant, the longitudinal sides (2b) are designed in cross section as a polygonal profile (U0-U3), the polygonal profile (U0-U3) comprising a second leg (U3) arranged substantially parallel to the first leg (U0), a connecting part (U1) connecting the first and the second leg, and a third leg (U2) arranged substantially parallel to the connecting part (U1), the third leg (U2) being connected to the free end of the second leg. Punched holes (3b) are provided at both ends (E1, E2) of the cross member (3), in which the first leg (U0) of the polygonal profile (U0-U3) is arranged. The punched holes (3b) are, as shown, essentially vertical incisions that extend from the bottom of the cross member (3) towards the top.

[0046] FIG. 11 shows a detailed view of the cross member (3) from FIG. 10.

[0047] FIG. 12 shows the polygonal profile in a side view with the first leg (U0), the second leg (U3) essentially parallel to it, the connecting part (U1) connecting them, to which in turn the third leg (U2) runs parallel.

[0048] For further features not shown in the figures, reference is made to the general part of the description.

[0049] Finally, it should be noted that the teachings of the invention are not limited to the embodiments discussed above. Rather, the most diverse designs of the longitudinal sides and the cross members, different numbers, different profiles as well as shapes of the cross members are possible.