EP2919620A1

EP2919620A1 - Method for producing a sheet metal profile for a drawer pull-out guide and sheet metal profile produced thereby and drawer pull-out guide produced thereby

Info

Publication number: EP2919620A1
Application number: EP13802849.3A
Authority: EP
Inventors: Martin Schneider; Olaf Isele
Original assignee: Julius Blum GmbH
Current assignee: Julius Blum GmbH
Priority date: 2012-11-15
Filing date: 2013-11-06
Publication date: 2015-09-23
Anticipated expiration: 2033-11-06
Also published as: CN104837381A; CN104837381B; AT512899A4; JP2016505383A; AT512899B1; EP2919620B1; ES2724875T3; JP6212126B2; MY186231A; WO2014075115A1; US9993857B2; US20150266070A1; KR101808498B1; KR20150065804A; KR20170110744A

Abstract

The invention relates to a method for producing a sheet metal profile (1, 32, 33, 37, 40), in particular consisting of steel, for a drawer pull-out guide (2) having at least one web (5, 35, 36, 38, 39, 41, 42) projecting laterally, in particular perpendicularly, from a flat surface (3, 43, 44, 45) of the sheet metal profile (1, 32, 33, 37, 40) and extending in the longitudinal direction (4) of the sheet metal profile (1, 32, 33, 37, 40), wherein, in a first method step, from at least one flat surface (3, 43, 44, 45) of a sheet metal billet (6) there is extruded at least one web (5, 35, 36, 38, 39, 41, 42) projecting laterally, in particular perpendicularly and extending in the longitudinal direction (4) of the sheet metal billet (6), and in at least one further method step, preferably in 10 to 15 further method steps, the at least one web (5, 35, 36, 38, 39, 41, 42) is squeezed together, i.e. is reduced in width (7) and increased in height (8). The invention further relates to a sheet metal profile produced in this manner and to a drawer pull-out guide that comprises such a profile.

Description

METHOD FOR PRODUCING A PANEL PROFILE FOR A DRAWER PULL-OUT GUIDE AND DRAWING PROFILE PRODUCED THEREFROM, AND DRAWER PULLER MANUFACTURED THEREFOR

The invention relates to a method for producing a, in particular made of steel, sheet metal profile for a drawer pull-out with at least one of a flat surface of the sheet metal profile laterally, in particular vertically, protruding and extending in the longitudinal direction of the sheet metal web. The invention furthermore relates to a sheet-metal profile produced by the method and to a drawer pull-out guide which comprises at least one sheet-metal profile produced by the method.

Such a manufacturing method - although not explicitly oriented to the production of a sheet metal profile for a drawer pull-out - is known under the name "Spaltprofilieren", which is the subject of DE 100 39 768 A1, wherein in this method by means of acting on the edge of a sheet forming roll The flange produced in this way can then be further deformed relative to the starting sheet (compare DE 103 05 542 A1) It is known from the prior art that the flange can only be formed from the edge of the sheet metal and that the flange has a smaller thickness compared to the starting sheet, thus making the method suitable for a number of applications, eg drawer runners , not suitable.

The object of the present invention is to avoid the disadvantages described above and to provide a comparison with the prior art improved method and a sheet metal profile produced by this method or at least one such sheet profile comprehensive drawer pull-out.

To solve this problem, it is inventively provided that

In a first method step, at least one lateral, in particular vertical, protruding and out of at least one flat surface of a sheet metal strip is squeezed out in the longitudinal direction of the sheet metal strip extending web, and

- The at least one web in at least one further process step, preferably in 1 0 to 1 5 further process steps, is squeezed together, i. reduced in width and increased in height.

By this method, it is possible in comparison to the prior art, the at least one ridge in any area of a flat surface of a sheet metal strip, so not only in the edge region to produce and at the same time - depending on how far you at least one ridge in the further process steps squeezes - arbitrarily to dimension, that is, the parameters width and height of the web to adapt to its specific application.

Advantageous embodiments of the invention are defined in the dependent claims and together with further details and advantages of the invention in the context of the following description of the figures. It shows

Fig. 1 is a schematic overview of a

Embodiment of the manufacturing method according to the invention in a perspective view,

2 a) to 2 k) show a sequence of schematically illustrated cross-sectional views of the cross-sectional planes I to XI indicated in FIG. 1, wherein the sheet-metal strand has been omitted in the cross-sectional representations of FIGS. 2 b), 2 d), 2 f), 2 h) and 2 j).

3a) to 3e) enlarged schematic cross-sectional views of the indicated in Figure 1 cross-sectional planes II, IV, VI, VIII and X,

Fig. 4 shows the schematically illustrated cross section of a possible

Embodiment of a drawer pull-out guide,

5a) and 5b) an embodiment of a sheet metal profile according to the invention, which can be used in a drawer pull-out as a cabinet rail, wherein Fig. 5a) shows a perspective and Fig. 5b) shows a cross-sectional view, Fig. 6a) and 6b) a further embodiment of the sheet metal profile according to the invention, which can be used in a drawer pull-out as a middle rail, wherein the Fig. 6a) is an overall perspective view and Fig. 6b) shows an enlarged section thereof, and

Fig. 7a) and 7b) in the method according to a preferred

Embodiment used next profiling.

1 shows a perspective view of an embodiment of the manufacturing method according to the invention is shown schematically. A sheet metal strand 6, which comprises a flat surface 3, is processed in five process steps by means of deforming devices in the form of roll forming sets 10, 11, 12, 13 and 14. In the case illustrated, the sheet-metal strand 6 is consequently processed in five successive passes, whereby the sheet-metal strand 6 is moved along its longitudinal direction 4 through the deformation devices 10, 11, 12, 12. 13 and 14. Although the sheet metal strand 6 comprises only a flat surface 3 in the illustrated example, it can also be the case in accordance with preferred exemplary embodiments that an already partially formed sheet metal strip is fed to the deformation devices and / or or the sheet metal strip further formed after processing, preferably bent, is.

To carry out the process, at least one first and at least one further process step are required. In the illustrated example, as already stated, five method steps are shown. In addition to a first method step, preferably ten to fifteen further method steps take place. However, this preferred embodiment has not been shown here for the sake of clarity. FIGS. 2a) to 2k) and 3a) to 3e) serve to illustrate the individual method steps, these figures each showing a specific cross-section, indicated by dot-dash lines, from the structure shown in FIG. First of all, the basic structure of the deforming devices 1 0, 1 1, 12, 13 and 14, which are preferably used, will be briefly discussed. Each of these deforming devices 10, 11, 12, 13 and 14 comprises a profiling roller set with a first profiling roller 15 and two further Profiling rollers 16 and 17. Each of these profiling rollers 15, 16 and 17 has substantially the shape of a cylinder with a lateral surface 15, 26 and 27 and two end faces, which are provided in the case of two further profiling rollers with reference numerals 28 and 29. For further details, such as the relative spatial arrangement of the profiling rollers 15, 16 and 17 to each other, will be discussed in the course of the description of Fig. 3a) to 3e). The sequence of FIGS. 2a) to 2k) serves to illustrate the method steps illustrated in FIG. 1, the figures corresponding in alphabetical order to the cross-sectional planes of FIG. 1 denoted by the Roman numerals I to XI, it being added that FIG in FIGS. 2b), 2d), 2f), 2h) and 2j), the sheet-metal profile 6 has been omitted for the sake of clarity. These five cross-sectional views will be explained in more detail with reference to FIGS. 3a) to 3e).

Starting point of the method is the sheet metal strand 6 with at least one flat surface 3 (see Fig. 2a)). In a first method step, a laterally, in this case perpendicular, projecting web 5 is squeezed out of the flat surface 3 of this sheet metal strand 6. How this proceeds in detail will be explained with reference to FIG. 3a). Because the sheet-metal strand 6 is moved relative to the deforming device 10, this web 5 extends in the longitudinal direction 4 of the sheet-metal strand 6 (see Fig. 1).

After the first method step, the web 5 has a specific shape, which depends on the configuration of the deformation tools used in the first method step. In the illustrated embodiment (see Fig. 2c)), the web 5 - viewed in cross section - a substantially rectangular shape with a certain width 7 and a certain height 8. The dimensions of this web 5 can now be changed in further process steps, namely by squeezing the web 5 together, ie reducing its width 7 and increasing its height 8 (see Figures 2e), 2g), 2i) and 2k )). Depending on the purpose of the web 5 to meet, it can be dimensioned in principle depending on the number of coming to use further process steps in principle.

Advantageously, a backflow of the sheet material in the flat surface 3 of the sheet metal strand 6 is inhibited by limiting material cuts 9 during the process steps.

In general, it should be noted that the process is carried out at room temperature, that is typically at a temperature between 15 ° C and 25 ° C. Furthermore, it is preferably provided that the sheet metal strand by an active drive of the profiling rollers 15, 16 and 17, e.g. at a speed of 1 m / min to 300 m / min, is moved. Both a continuous and a start-stop operation is conceivable. Turning now to Figs. 3a) to 3e) which show in detail cross-sections taken along the cross-sectional planes II, IV, VI, VIII and X of Fig. 1. The basic structure of the deforming devices 10, 11, 12, 13 and 14 used in the five illustrated passes is, as already stated, the same in each case. Each of these deforming devices 10, 11, 12, 13 and 14 comprises a profiling roller set with a first profiling roller 15 and two further profiling rollers 16 and 17, wherein between the first profiling roller 15 and the two further profiling rollers 16 and 17, a first gap 18 with a gap width , which essentially corresponds to the material thickness of the sheet metal strand 6, is arranged. Between the two further profiling rollers 16 and 17, a second gap 19 is arranged.

The first profiling roller 15 has on its lateral surface 20 (see Fig. 1) an annular bulge 21 with a width 22. This annular bulge 21 of the first Profiling roller 15 and the second, between the two further profiling rollers 16 and 17 arranged gap 9 are opposite to each other.

In the first four Profilierwalzensätzen 10, 1 1, 12 and 13 (see Fig. 3a) to 3d) shown, the axes of rotation 23 and 24 of the two further profiling rollers 16 and 17 are aligned parallel to the axis of rotation 25 of the first profiling roller 15. Thus, the first gap 18 between the lateral surfaces 26 and 27 of the two further profiling rollers 16 and 17 and the lateral surface 20 of the first profiling roller 15 and the second gap 19 between the end faces 28 and 29 of the two further profiling rollers 16 and 17 (see also Fig. 1).

In the profiling roller set 14 shown in FIG. 3e), the axes of rotation 23 and 24 of the two further profiling rollers 16 and 17 are aligned perpendicular to the axis of rotation 25 of the first profiling roller 15 and simultaneously parallel to one another. The first gap 18 is thus located between the end faces 28 and 29 of the two further profiling rollers 16 and 17 and the lateral surface 20 of the first profiling roller 15 (see also Fig. 1). The second gap 19 is arranged between the lateral surfaces 26 and 27 of the two further profiling rollers 16 and 17. The last-described arrangement of the profiling rollers 15, 16 and 17 relative to one another is preferably used at least in the last method step, particularly preferably from the third method step, since by this arrangement of the profiling rollers 16 and 17 relative to the flat surface 3 of the sheet metal strand 6 a larger processing surface takes effect. In this way, the surfaces of the sheet-metal strip 6 adjacent to the crimped-profiled web 5 can be smoothed in the final method step (s).

According to a preferred embodiment, instead of the two further profiling rollers 16 and 17, only one profiling roller 50 having a groove-shaped recess 52 whose width corresponds to the gap width of the second gap 19 arranged between the two further profiling rollers 16 and 17 is used (cf., for example, FIG 3a)). This situation is illustrated in FIGS. 7a) and 7b), wherein FIG. 7a) shows a cross-sectional view and FIG. 7b) shows a perspective view. In detail, how is the web 5 squeezed out of the sheet metal strand 6 in the course of the first method step? For this purpose, the sheet metal strand 6 with the flat surface 3 is passed through the first gap 18 of the first profiling roller set 10 (see FIG. In this case, from the annular bulge 21 of the first profiling roller 15, a web 5 from the flat surface 3 of the sheet metal strand 6 out and in the second, between the two other profiling rollers 16 and 17 arranged, 19 gap squeezed, said web 5 in its dimensions , that is in its width 7 and in its height 8, substantially corresponds to the dimensions of the annular bulge 21 of the first profiling roller 15.

The above-mentioned inhibiting the flow back of the sheet material in the flat surface 3 of the sheet metal strand 6 is realized in that the annular protrusion 21 of the first profiling roller 15 by projections 30 and 31, the e.g. torus-shaped, is limited. By means of these projections 30 and 31, material recesses 9 (see Fig. 2c) are produced on the right and left of the squeezed-out web 5, viewed in cross-section. The fact that the backflow of the sheet material is inhibited during the process steps, ideally completely inhibited, the material volume of the web 5 remains almost constant.

To further change the dimensions 7 and 8 of the web formed in the course of the first step 5 of the sheet metal strip 6 is passed in further process steps by further Profilierwalzensätze 1 1, 12, 13 and 14, said Profilierwalzensätze 1 1, 12, 13 and 14 each one have compared to the previous Rolling Roll 10, 1 1, 12 and 13 gradually reduced gap width of the second gap 19. As a result, the web 5 is forcibly squeezed together, that is, the width 7 of the web is reduced while the height 8 is increased. This can be seen by way of example with reference to the sequence of FIGS. 3a) to 3e).

As already stated in the introduction to the description, by means of the production method according to the invention, it is possible, for example, to produce sheet-metal profiles for drawer pull-out guides made of steel. For this purpose, the sheet metal is in front of the and / or subsequent to the pinching of the at least one web in the course of the first and the at least one further method step by means of further profiling rollers deformed, preferably bent. In a final method step, sheet metal profiles of a predetermined length are then separated from a continuous or start-stop material strand.

In FIG. 4, a conceivable drawer pull-out guide 2, which comprises two sheet-metal profiles 32 and 33 produced by means of an embodiment of the production method according to the invention, is shown by way of example in cross-section. Such a drawer pull-out guide typically has a cabinet rail 32 to be fastened to a furniture carcass, a drawer rail 33 to be fastened to the drawer and a middle rail 34 movably mounted between the carcass rail 32 and the drawer rail 33. Between the rails 32, 33 and 34 are typically arranged carriage with load-transmitting rolling elements 46, 47 and 48, 49, which allow relative movement of the rails 32, 33 and 34 to each other.

In the illustrated example, both the carcass rail 32 and the drawer rail 33 comprise a web 35 or 36, wherein these webs 35 and 36 can be produced by means of the crushing described above. In the case of the carcass rail 32, the rolling element 46, which is arranged between the middle rail 34 and the carcass rail 32, runs on the web 35. In the case of the drawer rail 33, the web 36 serves to space the two rolling elements 48 and 49 from one another and at the same time to provide a bearing for the rolling element 48.

A further example of a carcass rail 37 is shown in FIGS. 5 a) and 5 b), wherein FIG. 5 a) shows a perspective view and FIG. 5 b shows a cross-sectional view of this carcass rail 37. On the flat surface 43 of the carcass rail 37, two webs 38 and 39 are arranged, which can be formed by the described Quetschprofilieren. They represent reinforcing ribs in this case, which serve to reinforce the carcass rail 37. In FIGS. 6a) and 6b), a middle rail 40 of a drawer pull-out guide is shown by way of example, wherein FIG. 6a) shows an overall perspective view and FIG. 6b) shows a section of this overall view. The illustrated center rail 40 consists - viewed in cross-section - substantially of a U-profile, wherein on the two lateral, opposite legs of this U-profile two crimped webs 41 and 42 are arranged, which protrude from the flat surfaces 44 and 45 , At these webs 41 and 42, the rolling elements of between the middle rail 40 and a (not shown) drawer runner arranged (also not shown) run off, said carriage the webs 41 and 42 in the use position of the pull-out with its rolling elements to protect against lifting engages under the middle rail 40. In this way, if at the same time the center rail 40 is secured against lifting from the carcass rail, a, especially occurring in a fully extended drawer, tilting the drawer can be prevented.

Finally, it should be noted that the term "rolling element" is to be understood as being very broad and can be realized, for example, as a roller, cylindrical roller or ball, whereby the rolling element can either comprise an axle bearing or be guided without a balance, for example in a cage.

Claims

claims:

1 . Method for producing a sheet-metal profile (1, 32, 33, 37, 40), in particular made of steel, for a drawer pull-out guide (2) with at least one of a flat surface (3, 43, 44, 45) of the sheet-metal profile (1 , 32, 33, 37, 40) laterally, in particular vertically, and extending in the longitudinal direction (4) of the sheet metal profile (1, 32, 33, 37, 40) extending web (5, 35, 36, 38, 39, 41, 42), characterized in that

i. in a first method step, at least one web (5, 35, 36, 38, 39, 41, 42) is squeezed, and

ii. the at least one web (5, 35, 36, 38, 39, 41, 42) is squeezed together in at least one further process step, preferably in 10 to 15 further process steps, i. reduced in its width (7) and increased in height (8).

2. The method according to claim 1, characterized in that during the first and / or during the at least one further process step, a back flow of the sheet material in the at least one flat surface (3, 43, 44, 45) of the sheet metal strand (6) by limiting material cuts (9) is inhibited.

3. The method according to claim 1 or 2, characterized in that the method is carried out at room temperature.

4. The method according to any one of claims 1 to 3, characterized in that the method steps in each case by means of a deforming device (10, 1 1, 12, 13, 14), preferably by means of a profiling roller set, are performed.

5. The method of claim 4, wherein the method steps are each carried out by means of a profiling roller set (10, 1 1, 12, 13, 14), and wherein the profiling roller sets (10, 1 1, 12, 13, 14)

comprising at least a first profiling roller (15) and at least two further profiling rollers (16, 17),

between the at least one first profiling roller (15) and the at least two further profiling rollers (16, 17) a first gap (18) having a gap width substantially corresponding to the material thickness of the sheet metal strand (6) is arranged,

- between the at least two further profiling rollers (16, 17) a second gap (19) is arranged,

- The at least one first profiling roller (15) on its lateral surface (20) has an annular protrusion (21), and

- The annular protrusion (21) of the at least one first profiling roller (15) and the second, between the at least two further profiled rollers (16, 17) arranged gap (19) are opposite to each other.

6. The method according to claim 5, characterized in that

in at least one of the profiling roller sets (10, 11, 12, 13, 14), preferably at least in the first profiling roller set (10), particularly preferably in the first two profiling roller sets, the axes of rotation (23, 24) of the at least two further profiling rollers ( 16, 17) are aligned parallel to the axis of rotation (25) of the at least one first profiling roller (15),

- The first gap (18) between the lateral surfaces (26, 27) of the at least two further profiling rollers (16, 17) and the lateral surface (20) of the at least one first profiling roller (15) is arranged, and

- The second gap (19) between the end faces (28, 29) of the at least two further profiling rollers (16, 7) is arranged.

7. The method according to claim 5 or 6, characterized in that

in at least one of the existing profiling rolls sets (10, 11, 12, 13, 14), preferably at least in the last profiling roll set (14), particularly preferably from the third profiling roller set, the axes of rotation (23, 24) of the at least two further profiling rollers (16, 17) are aligned perpendicular to the axis of rotation (25) of the at least one first profiling roller (15),

- The axes of rotation (23, 24) of the at least two further profiling rollers (16, 17) are aligned parallel to each other,

- The first gap (18) between the end faces (28, 29) of the at least two further profiling rollers (16, 17) and the lateral surface (20) of the at least one first profiling roller (15) is arranged, and

- The second column (19) between the lateral surfaces (26, 27) of the at least two further profiling rollers (16, 17) is arranged.

8. The method according to any one of claims 5 to 7, characterized in that at least one of the existing Profilierwalzensätze (10, 1 1, 12, 13, 14) instead of the least two further profiling rollers (16, 17) a profiling roller (50) a groove-shaped recess (52), the width of the gap width of the second, between the at least two further profile rollers (16, 17) arranged gap (19) corresponds, is used.

9. The method according to any one of claims 5 to 8, characterized in that the at least one laterally, in particular vertically, protruding and in the longitudinal direction (4) of the sheet metal strand (6) extending web (5, 35, 36, 38, 39, 41 , 42) in the course of the first method step by means of passing the at least one flat surface (3, 43, 44, 45) of the sheet metal strand (6) through the first gap (18) of a first profiling roll set (10) from the annular bulge (21). the at least one first profiling roller (15) is squeezed out of the at least one flat surface (3, 43, 44, 45) and pressed into the second gap (19), the at least one web (5, 35, 36, 38, 39, 41, 42) in its dimensions (7, 8) substantially corresponds to the dimensions of the annular bulge (21).

10. The method according to any one of claims 5 to 9, characterized in that the at least one web (5, 35, 36, 38, 39, 41, 42) in the course of at least one further method step by means of passing the sheet-metal strand (6) through at least one further profiling roller set (11, 12, 13, 14) which has a reduced gap width of the second gap (19) compared to the preceding profiling roller set (10, 11, 12, 13) , squeezed further.

1 1. Method according to one of claims 5 to 10, characterized in that the annular bulge (21) of the at least one first profiling roller (15) by, preferably toroidal, projections (30, 31) is limited, through which a flow back of the sheet material in the at least a level

Surface (3, 43, 44, 45) of the sheet metal strip (6) is inhibited during the first and / or during the at least one further process step.

12. The method according to any one of claims 5 to 1 1, characterized in that the sheet metal strand (6) by a drive of the profiling rollers (15, 16, 17), and preferably at a speed of 1 m / min to 300 m / min, moves becomes.

13. The method according to any one of claims 1 to 12, characterized in that the sheet-metal strand (6) before and / or following the crimping of the at least one web (5, 35, 36, 38, 39, 41, 42) in Course of the first and the at least one further method step by means of further profiling formed, preferably bent, is.

14. The method according to any one of claims 1 to 13, characterized in that in a last method step of a continuously or in a start-stop operation produced material strand (6) sheet metal profiles (1, 32, 33, 37, 40) of a predetermined length be separated.

15. Sheet metal profile (1, 32, 33, 37, 40), in particular made of steel, for a drawer pull-out guide (2) with at least one of a flat surface (3, 43, 44, 45) of the sheet metal profile (1, 32, 33, 37, 40) laterally, in particular vertically, protruding and in the longitudinal direction (4) of the sheet-metal profile (1, 32, 33, 37, 40) extending web (5, 35, 36, 38, 39, 41, 42), produced by a method according to one of claims 1 to 14.

16. Drawer pull-out guide (2), comprising

a carcass rail (32, 37) to be fastened to a furniture carcass,

- A drawer rail to be fastened to the drawer (33) and

a middle rail (34, 40) movably mounted between the carcass rail (32, 37) and the drawer rail (33),

characterized in that the carcass rail (32, 37), the drawer rail (33) and / or the middle rail (34, 40) corresponds to a sheet metal profile according to claim 15.

17. drawer pull-out guide (2) according to claim 16, characterized in that on one of the rails (32, 33, 34, 37, 40) at least one rolling body (46, 47, 48, 49) is mounted, which at the at least a web (5, 35, 36, 38, 39, 41, 42) of another rail (32, 33, 34, 37, 40) expires.

18. drawer pull-out guide (2) according to claim 16 or 17, characterized in that the at least one web (5, 35, 36, 38, 39, 41, 42) of the rails (32, 33, 34, 37, 40 ) represents a reinforcing rib.