KR19990013863A - Rectangular cross-section beams and structural units formed of these beams, made from cavity parts of extruded light metal - Google Patents

Abstract

A beam that is characterized by an undercut groove parallel to the longitudinal axis of the extruded portion at one or more outer sides to receive elements for connecting the cavity portions and having a rectangular cross section, has a cross section length different from the rectangular cross section (a). ) And a hollow section 10, 10a-1; 11, 11a, 11n, 12; 13 having a cross-sectional width b). The cross sectional length a of one cavity part coincides with the cross sectional width b of the other cavity part.

Description

A beam of rectangular cross section made of a hollow part of an extruded light metal and a structural unit formed from the beam.

The present invention has one or more undercut grooves that extend parallel to the longitudinal axis of the extruded portion at one or more outer sides to receive elements for connecting the cavity portions, and is made of a hollow portion of the extruded light metal and is rectangular in cross section. With regard to the in-beam, the cross section supporting the longitudinal grooves for the pair of beam connecting elements has almost the same cross sectional area. The invention also relates to a structural unit made of the beam.

For beams in the form of arms or frames for installation in all kinds of machines, a cavity with grooves disposed on each outer surface, with a secondary cross section along the central axis and a cylindrical opening parallel to the central axis, Known from EP 0 589 380. The cavity parts of this type can be connected together by plates or planar elements and screws fastened across the longitudinal axis. The screw is disposed towards the end in a block that can be inserted into the undercut groove. It is also possible to assemble two identical cavities with secondary cross sections in parallel, so that posts or structural units can be formed to create an exhibition stand for an industrial fair.

It is an object of the present invention to broaden the scope of application of the beams of the type described above and to fit the beams together to make various structural units.

This object is achieved as described in the independent claims; The subclaims describe other advantageous improvements.

According to the invention the beam is a cavity part of a rectangular cross section with different cross section lengths and cross section widths, the cross section length of one cavity part being approximately equal to the cross section width of the other cavity part; Thus, a combination of connecting parts can be formed from a plurality of cavity parts having a size specified by the present invention; Multiple cavity portions can be fitted in a cross section of a suitable size. It is advantageous to choose the ratio of the cross section width to cross section length in each cavity so that it is between 1.2 and 2.5. The preferred value here is √2, about 1.414.

Instead of cylindrical opening in the cavity part described above having a secondary cross section, the cavity part according to the invention is characterized by a rectangular rectangular central space in which the ratio of the cross section width to the cross section length is 1.4-2.5.

It is advantageous for two or more opposing faces to have a pair of undercut longitudinal grooves, with each longitudinal groove adjoining into the channel-shaped space at each corner. The channeled space between the paired undercut longitudinal grooves and said grooves forms corner regions of equal shape and size in all cavities according to the invention; Advantageously this joins the cavity portions of different sizes together.

As a result, the centerline of each longitudinal groove adjacent the corner of the cavity part is spaced at the same distance from the corner of the cavity part.

Another feature of the invention is that a narrow portion of one cavity portion has an undercut longitudinal groove around the center, and a pair of undercut longitudinal grooves are provided on the wide side of the cavity portion, in each case one of which is a wide face. Is adjacent to one of the defining edges.

Two different cross sectional forms are preferred; The channel, which is closed in the first cross section, extends from the edge as a hollow space between two undercut longitudinal grooves on both sides of the edge. In another form the channel-like space in the hollow part is provided in the corner region between the undercut grooves of the hollow section and opens to the face in the form of an undercut edge groove; Edge grooves extending outwardly from the hollow space in this section are provided in each of the longitudinal and narrow faces of the hollow section.

Also included in the present invention are structural units consisting of two or more cavity parts of the type described above; In each case the faces of the same shape are paired together and the cross section length of one cavity section coincides with the cross section width of the other cavity section. Therefore, the centerline of one or more longitudinal grooves in the plane of one cavity section is preferably arranged in line with the middle triangular line of the longitudinal grooves in the other cavity section, and the two longitudinal grooves are interlocked together to form elements for joining the cavity sections together. Must be accepted.

In another structural unit according to the invention, on one side of the cavity section, a pair of cavities such that the centerline of the longitudinal grooves in each neighboring cavity section are arranged in line with the centerline of the longitudinal grooves on one side of the cavity section described above The two sides of the part are aligned. Thus, the smallest part in the cross section of the cavity section may be applied in duplicate.

In all cases the interlocking connecting elements are inserted into longitudinal grooves aligned in accordance with the invention; This is an I-shaped push element fitted into the cross section of a pair of longitudinal grooves.

Advantages, features and other details of the present invention will be understood with reference to the following detailed description and drawings of preferred embodiments.

1 is a cross-sectional view of a structural unit portion in the form of an extruded light metal portion;

2, 6 and 7 show an extruded part from a structural unit, the extruded part having a larger cross section than that shown in FIG. 1.

3 is a perspective view of the extrusion portion shown in FIG. 1;

4,5 are cross-sectional views of two parts having different sizes joined together;

8 is a sectional view showing two parts of another structural unit arranged next to each other;

9 to 11 are cross-sectional views of other parts of the same structural unit as FIG.

* Explanation of symbols for main parts of the drawings

14 ... center cavity 20 ... undercut edge

22 ... Rib 24,26 ... Channel Groove

27 ... base plate 28 ... longitudinal groove

37 ... side walls 38 ... diagonal supports

An extruded cavity part having a cross section length a of 101.12 mm and a cross section width b of 71.5 mm, the outer shape consisting of a rectangle and made of aluminum alloy, has a corner area 15 and a cross section width of 30 mm c ₁ and a cross section of 60 mm The central cavity portion 14 is characterized by a substantially rectangular cross section having a length c. Here, the ratio of the cross-sectional width b to the cross-sectional length a in the section 10 is calculated as √2, that is, 1.4142.

On each narrow face 18 and wide face 19, an edge groove 20 or an undercut edge having a width e of 9 mm is arranged adjacent to the edge 16 of the section. Each edge groove 20 is defined at both sides by a channel-shaped groove 24 of rectangular cross section and a section rib 22 having a thickness of 5 mm f, which is partially by a wall having a thickness f or f ₁ of 6 mm. Surrounded by; The shorter the distance g between two 16 mm walls, the shorter the width g inside the groove 24 extends parallel to the section rib 22.

Between the insides of the channeled grooves 26, a lower height h of undercut space 26 is arranged in each of the narrow faces 18 of the cavity section 10 in the 9 mm width i undercut longitudinal grooves 28; Each narrow face 18 of the cavity section is characterized by a pair of longitudinal grooves 28. In addition the groove 28 is defined on the outside by a 8mm thick f _2, the rib (22).

The distance n from the centerline M of the longitudinal groove extending parallel to the longitudinal axis A of the section to the corner 16 is 35.75 mm in both the cavity portion 10 of FIG. 1 and the neighboring section 10a of FIG. 4. The cross sectional length a of the cavity portion 10 described above is equal to the cross sectional width b of the cavity portion 10a mounted thereto. When the longitudinal grooves 28 centerlines M of the adjacent grooves 18, 19 of the two cavity portions 10, 10a are arranged in line with each other, the I-shaped push connection elements 30 can be inserted into the respective grooves. have; For the sake of clarity only one connecting element 30 is shown in the figure for each section 10 / 10a; 10a / 10b; 10b / 10c.

In the case of the cavity part 10a shown in FIG. 4, the shape of the narrow face 18 having a cross-sectional width b of 101.12 mm is the same as the shape of the broad face 19 of the smaller section 10. On the wide face 19 of the larger cavity portion 10a, the cross sectional length a is 143 mm, where the distance q between the edge and the centerline M of the adjacent longitudinal groove 28 is 71.5 mm. Between the inner groove walls 32 of the undercut longitudinal grooves 26/28, the central space 12 is extended by an extension 12a defined outwardly by the interval wall strip 34 of thickness f.

Here, the ratio of the cross-sectional width c1 to the inner cross-sectional length c of the section 10a is 1.666 without the recess 14a.

The narrow face 18 of the section in the cavity part 10b coincides with the wide face 19 of the attached cavity part 10a, in which the distance q is equal to the distance q ₁ of the wide part 10b. same. In this case an additional recess 14b is provided in the central space 14; This recess 14b is defined by the strip of the section wall 36.

5, the cavity sections 10d and 10e are shown; Section 10e is subdivided into diagonal supports 38 having a thickness of 6 mm and having an X-shaped cross section; The cavity section 10c shown in FIG. 4 and the narrower cavity section 10d of about 60 mm shown in FIG. 5 may be combined into the section 10e. The diagonal support 38 is integrally coupled with the base plate 27 of the undercut space 26.

By adjusting the cross sectional area, the cavity sections 10, 10a-10e form a system having sections that can be joined together as shown in Table 1.

hollowsection 10 10a 10b 10c 10d 10e a 101.12 143.00 202.23 286.00 286.00 404.47 b 71.50 101.12 143.00 202.23 143.00 286.00 q 29.62 71.50 130.73 214.50 214.50 332.97 q1 - 29.62 71.50 130.73 71.50 214.50 n 35.75 35.75 35.75 35.75 35.75 35.75 Ratioa: b 1.414 1.414 1.414 1.414 2 1.414

The two cavity portions 10c and 10d can be mounted by the wide side 19 to the narrow side 18 of the cavity portion 10e characterized by the diagonal support 38 and the 10a portion to the cavity portion 10d. It can be clearly seen that it can be mounted; The 10c part and the 10b part will in turn be connected to the 10a part. It can also be seen that the two cavity portions 10 are joined together by a broad face 19 and a narrow face 18 of the 10a portion.

The system for the cavity partial structure can be extended considerably. In Table 2 for the cavity portions 10f and 10g of FIGS. 6 and 7, if the shorter cross-sectional width b is preferred, the cross-sectional width is equal to the cross-sectional section 10a, 10b described above when the cavity portion has the same outer cross-sectional length a. Will change about.

Hollow section 10f 10 g a 143.00 202.23 b 71.50 101.12 q 71.50 130.73 q1 - 29.62 n 35.75 35.75 Ratio a: b 2 2

Two cavity portions 11, 11a of another structural system are shown in FIG. 8. In the cavity portions 11 and 11a having a wall thickness s of 5 mm, the undercut grooves 20 adjacent to the corners 16 are removed. Instead, a closed corner channel 40 is provided with undercut grooves 28 on both sides.

The wide face 19 of the large cavity portion 11n of this system is integrally attached to the diagonal support 38 fixed together to the coaxial support 39 having an 8 mm thickness t, as shown in FIG. 9; The wide and narrow wall thickness s is 19.18 and 8 mm, respectively.

The size of the parts shown in Figures 8 and 9 in this system is as shown in Table 3:

Hollow section 11 11a 11n * ** *** a 194.50 275.00 389.00 166.00 234.80 332.00 b 137.50 194.50 275.00 117.40 166.00 234.80 q 114.50 195.00 309.00 91.00 154.80 252.00 q1 57.50 114.50 195.00 37.40 86.00 154.80 n 40.00 40.00 40.00 40.00 40.00 40.00 Ratio a: b 1.414 1.414 1.414 1.414 1.414 1.414

Two segment arrangements from the rescue system are shown in FIGS. 10 and 11. Since the two cavity portions 12, 13 have a closed corner portion 16 which is abutted by two longitudinal grooves 28, the inner groove 42 having a width z of about 8 mm is a cavity in FIG. 10. In each closed corner region 16 of the part 12 is provided along the diagonal D. In addition, the side wall 37 of the cavity part 13 in FIG. 11 is comprised by substantially the same thickness of 22.5 mm-24 mm.

Since the same size shown in Table 4 is applied to the two cavity portions 12, 13, the largest cavity portion, ie, column 5, includes the edge support 38a as shown in FIG. 11.

(Unit mm) Hollow section 12,13 Region (One) (2) (3) (4) (5) a 106.07 150.00 212.13 300.00 424.26 b 75.00 106.07 150.00 212.13 300.00 q 31.07 75.00 137.13 225.00 349.26 q1 - 31.07 75.00 137.13 225.00 n 37.5 37.5 37.5 37.5 37.5 Ratio a: b 1.414 1.414 1.414 1.414 1.414

According to the present invention, the beams can be fitted together to broaden the scope of application of the above-described types of beams and to make various structural units.

Claims (25)

The cross section holding the longitudinal grooves for the connecting elements of the pair of beams is of substantially the same cross-sectional size and extends parallel to the longitudinal axis of the extruded portion from one or more outer faces to accommodate the elements for connecting the cavity parts. A beam having one or more undercut grooves, the cross section being rectangular and made of a cavity of extruded light metal, The beam is a cavity section 10, 10a-10g; 11, 11a, 11n, 12; 13 of a rectangular cross section having a different cross section length (a) and a cross section width (b), the cross section length of one cavity section being the other cavity section. A beam, characterized in that the same as the cross-sectional width of. The beam of claim 1 wherein the ratio of the cross-sectional width (b) to the cross-sectional length (a) is between 1.2 and 2.4. The beam of claim 1, wherein the ratio of the cross-sectional width (b) to the cross-sectional length (a) is about 1.414. 4. Beam according to one of the preceding claims, characterized in that the opening in the axis is a rectangular space (14) and its inner cross section length (c) is longer than the inner cross section width (c ₁ ). The beam of claim 4, wherein the ratio of the cross-sectional width (c ₁ ) to the cross-sectional length (c) is about 1.4 to 2.5. The method of claim 1, wherein at least two opposing faces 18, 19 of the cavity portion have a pair of undercut longitudinal grooves 28 and each longitudinal direction at each edge 16 of the cavity portion. The grooves are characterized in that they are adjacent to the channel space (24, 40). 7. The narrow face 18 of the cavity portion 10 has an undercut groove 28 around the central portion, and the pair of undercut longitudinal grooves 28 have a cavity portion 19. Beams, each longitudinal groove being adjacent to one of the two edges (16) defining the face of the cavity part. 7. The narrow face 18 and the wide face 19 of the cavity portions 10a-10g; 11, 11a; 12; 13 each have a pair of undercut longitudinal grooves 28. Wherein each longitudinal groove is adjacent to one of the two edges (16) defining the face of the cavity portion. 9. The centerline M of each longitudinal groove 28 disposed adjacent to the corner 16 of the cavity portions 10a-10g; 11, 11a; 12; 13. A beam characterized by being spaced apart at the same distance n from the edge. 10. Beam according to one of the claims 6 to 9, characterized in that the cross section of the cutting space (26) in the undercut groove (28) is rectangular. The thickness f ₂ of the rib 22a, which defines the longitudinal grooves 28, is approximately equal to the height h of the cutting space 26. Beam. 12. The edge region 16a according to one of the preceding claims, characterized in that the edge region 16a with a closed cross section extends between the undercut grooves 28 disposed on both sides of the corner 16 of the cavity portion 12,13. Beam. 13. Beam according to claim 12, characterized in that at least one diagonal groove (42) extending from the central space (14) is provided in the enclosed corner area (16a). 12. The undercut according to any one of claims 1 to 11, wherein in the form of a hollow space, the corner channel 40 having a closed cross section is disposed on both sides of the corners 16 of the cavity portions 11, 11a, 11n. A beam, which lies between the grooves 28. 12. The channeled recess 24 is provided in the corner region 16 between the undercut grooves 28 of the cavity portions 10, 10a-10g and the undercut grooves 20 according to one of the preceding claims. A beam, characterized in that it opens to the cavity surface (18, 19) in the form of. 16. The outer circumferential groove (20) extending outwards from the recess (24) is provided in each of the narrow and wide surfaces (19) of the cavity portions (10, 10a-10g). Beam. The thickness f of the ribs 22 defining the outer circumferential groove 20 is smaller than the thickness f ₁ of the ribs 22a defining the longitudinal grooves 28. Beam. 18. The central portion 14 of the cavity portions 10a, 11 is subdivided by supports 38, 38a, 39 inclined towards the section sidewalls 18, 19. Beam. The opposing cross sections of the two parts to be joined consist of approximately the same cross section and have one or more longitudinal undercut grooves parallel to the axis of the cavity part and receiving at least one outer surface for receiving elements for connecting the cavity parts, A structural unit comprising two or more beams of extruded cavity portions in cross section, comprising: cavity portions (10,10a-10g; 11,11a, 11n; 12) having a pair of faces (18,19) having the same shape; Two beams in the form of, 13) are joined together, and the cross section length (a) of the surface of one cavity part coincides with the cross section width (b) of the other cavity part. The opposing cross sections of the two parts to be joined consist of approximately the same cross section, having one or more longitudinal undercut grooves parallel to the axis of the cavity part and receiving at least one outer surface an element for connecting the other cavity part. A structural unit comprising two or more beams of extruded cavity portions of a cross section, the interval surface of the first beam in the form of cavity portions (10,10a-10g; 11,11a, 11n; 12,13) 18, 19 abut the two segment surfaces 18, 19 of the other beam in the form of a cavity part such that the centerline M of the longitudinal grooves 28 in the two adjacent cavity parts are both longitudinal in the first cavity part. Rescue unit, characterized in that aligned with the center line of the groove. 20. The centerline M of one or more longitudinal grooves 28 at the surface 18 of the cavity portions 10, 10a-10g; 11, 11a, 11n; A structural unit, characterized in that it is arranged in line with the centerline of the directional groove and both longitudinal grooves receive the connecting element (30) to form a connection engaged between the two cavity portions. The structural unit according to claim 19, which leads to a connecting element in the form of a pushing element (30) of the I-shaped cross section. 23. A pair of undercut grooves 28 according to any one of claims 19 to 22 adjacent the cavity part edges 16 adjacent to each other narrow face 18 and wide face 19 of the cavity part. A structural unit, characterized in that arranged in a line toward. 24. The cavity portion (10, 10a-10g; 11, 11a, 11n; 12.13) according to one of claims 19 to 23, comprising two longitudinal grooves (28) in contact with the channels (24, 49) in the form of channels. Structural unit of the structure characterized in that the same shape and size. 24. The corner region 16a of any one of claims 19 to 23, wherein the edge regions 16a of the cavity portions 12, 13, which are in contact with the two longitudinal grooves 28 and which are closed in cross section, are constructed in the same size and shape. Rescue unit.