Pull-out guide for a drawer
Patent Information
- Application Number
- EP2024720716
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-05-04
- Filing Date
- 2024-04-11
- Publication Date
- 2026-01-14
AI Technical Summary
Existing pull-out guides for drawers require excessive material and complex geometries due to integral fastening sections, leading to high costs and manufacturing complexity.
A pull-out guide design featuring a butt-welded fastening section to the body rail, using a U-shaped body rail and a simpler geometry, with the fastening section connected via a butt joint, allowing for reduced material usage and simplified manufacturing.
This design achieves sufficient mechanical stability while minimizing material costs and simplifying production, enabling a cost-effective and efficient pull-out guide system.
Smart Images

Figure AT2024060140_07112024_PF_FP_ABST
Abstract
Description
[0001] Pull-out guide for one drawer
[0002] The present invention relates to a pull-out guide for a drawer, comprising at least one body rail to be fastened to a fixed furniture part, and at least one fastening section by means of which the at least one body rail can be fastened to the fixed furniture part. The invention further relates to a piece of furniture comprising such a pull-out guide and a method for producing such a pull-out guide.
[0003] Pull-out guides for drawers are already well known in the art. In the prior art, at least one fastening section is usually an integral component of a cabinet rail. This means that the fastening section is formed from an extended section of the cabinet rail. However, this results in high material expenditure, which also has a negative impact on the cost of a pull-out guide.
[0004] To reduce material consumption, it is also known to weld a fastening section, usually L-shaped, to the cabinet rail using a lap joint. The overlap is necessary to achieve sufficient mechanical stability. An L-shaped fastening section also contributes to this (greater overlap).
[0005] The object of the present invention is to provide a pull-out guide for a drawer which is improved compared to the prior art, a piece of furniture with such a pull-out guide and a method for producing a pull-out guide, preferably such a pull-out guide.
[0006] These objects are achieved by the features of claims 1 , 15 and 16 .
[0007] According to the invention, the at least one fastening section is butt-welded to the at least one body rail. Butt welding, as used in the present application, refers to a welding process using a butt joint. In other words, two parts are arranged essentially in the same plane and welded together at their end faces.
[0008] Experiments conducted by the applicant have surprisingly shown that a pull-out guide with sufficient mechanical stability can be produced even with a butt joint between the body rail and the fastening section.
[0009] This makes it possible to minimize material consumption. Furthermore, the manufacturing process can be simplified, as both the cabinet rail and the mounting section can be manufactured with a simpler geometry.
[0010] According to the invention, a piece of furniture is further provided comprising a fixed furniture part, preferably a furniture body, a drawer and at least one such pull-out guide, wherein the drawer is mounted on the fixed furniture part so as to be movable via the at least one pull-out guide.
[0011] With regard to a method for manufacturing a pull-out guide, the following steps are provided:
[0012] Providing at least one carcass rail, wherein preferably the carcass rail is bent substantially into a U-shape, providing at least one fastening section, and butt welding the at least one carcass rail to the at least one fastening section.
[0013] Further advantageous embodiments of the invention are defined in the dependent claims.
[0014] Preferably, it can be provided that the at least one carcass rail and the at least one fastening section each have at least one end face, wherein the at least one carcass rail and the at least one fastening section are connected to one another at the end faces. Advantageously, it can be provided that the end faces are formed from a material thickness of the at least one carcass rail and / or the at least one fastening section, preferably wherein the at least one carcass rail and the at least one fastening section have substantially the same material thickness. This can further simplify the manufacture of a pull-out guide.
[0015] According to one embodiment of the invention, the at least one cabinet rail can be substantially U-shaped. The U-shape, on the one hand, promotes the mechanical stability of the cabinet rail and, on the other hand, represents an advantageous shape for guiding a drawer rail, on which a drawer can subsequently be arranged, on the cabinet rail.
[0016] It can be provided that the at least one end face of the at least one carcass rail is arranged on a leg of the U-shaped carcass rail.
[0017] It can further be provided that the at least one fastening section lies substantially in a plane with a leg of the U-shaped body rail.
[0018] These measures can reduce the space required for a pull-out guide.
[0019] Preferably, at least two fastening sections can be provided, wherein the at least two fastening sections are preferably connected to the at least one carcass rail at a distance from one another along a longitudinal extent of the at least one carcass rail. This allows a stable connection of the carcass rail to a fixed furniture part to be achieved.
[0020] According to a further embodiment of the present invention, the at least one fastening section can have a hole pattern for receiving a fastening means. By using a pattern, the position of the cabinet rail on the fixed furniture part can be easily adjusted.
[0021] Screws, for example, can be used as fastening means. However, in principle, any suitable means is conceivable.
[0022] The mounting section can be arranged vertically in one mounting position. This also has a positive effect on the space required for the extension guide.
[0023] Preferably, it can also be provided that the at least one fastening section is connected to the at least one body rail via a laser beam and / or a high-frequency welding process. This represents a simple possibility for implementing a butt weld.
[0024] Preferably, it can be provided that the fastening section is formed substantially cuboid-shaped.
[0025] Particularly preferably, it can be provided that a length of the at least one fastening section is smaller than a length of the carcass rail, preferably wherein the length of the fastening section comprises between 1 / 10 and 1 / 5 of the length of the carcass rail.
[0026] These measures, individually or in combination with each other, enable a simple, material-saving and cost-effective production of a fastening section and thus of a pull-out guide.
[0027] Furthermore, the pull-out guide can be provided with a drawer rail that can be connected to a drawer and is mounted so that it can move relative to the cabinet rail. This allows for a simple implementation of a pull-out guide.
[0028] Advantageously, the pull-out guide can also be provided with a center rail, which is movably mounted between the cabinet rail and the drawer rail. This allows the pull-out guide to be implemented as a full extension. Regarding a method, it can also be provided that a laser beam and / or a high-frequency welding process is used. This represents a simple way to achieve a butt weld.
[0029] Further details and advantages of the invention are explained in more detail below with reference to the figures and the drawings.
[0030] Fig. 1 is a schematic perspective view of a piece of furniture,
[0031] Fig. 2a is a schematic front view of a pull-out guide,
[0032] Fig . 2b a schematic perspective view of a
[0033] From pull guide,
[0034] Fig . 2c a schematic perspective view of a
[0035] From drawing guide before a welding process,
[0036] Fig. 3a is a schematic side view of a pull-out guide before a welding process,
[0037] Fig. 3b is a schematic side view of a pull-out guide after a welding process,
[0038] Fig. 4a is a schematic front view of a pull-out guide before a welding process, and
[0039] Fig. 4b is a schematic front view of a pull-out guide after a welding process.
[0040] Figure 1 shows a schematic, perspective view of a piece of furniture 100. The piece of furniture 100 comprises a fixed furniture part 101 in the form of a furniture body and several drawers 102. The top drawer 102 is not shown. Therefore, a pull-out guide 1, via which the drawers 102 are movably mounted on the fixed furniture part 101, can be seen.
[0041] In this embodiment, two pull-out guides 1 are provided for each drawer 102. The pull-out guides 1 are attached to the fixed furniture part 101 via fastening means 4, which can be received in holes in the hole pattern 3b. The fastening means 4 are designed as screws. However, other types of fastening means 4 are also conceivable.
[0042] Figure 2a shows a schematic front view of a pull-out guide 1 and Figure 2b shows the corresponding perspective view.
[0043] A drawer rail 5 is slidably mounted on the cabinet rail 2. Among other things, a roller 5a is provided for this purpose. A drawer 102 can subsequently be arranged on the drawer rail 5, so that the drawer can be slidably mounted on a fixed piece of furniture.
[0044] It can also be seen that the cabinet rail 2 is essentially U-shaped. Figure 2c in particular shows that an end face 2a of the cabinet rail 2 can be arranged on a leg 2b of the cabinet rail 2.
[0045] Figure 3a shows a schematic side view of a pull-out guide 1 before a welding process and Figure 3b after a welding process.
[0046] It can be seen that the fastening sections 3 are placed with a front side 3a on a front side 2a of the carcass rail 2. The fastening sections 3 are then welded to the carcass rail 2. This is a butt joint or butt welding. Preferably, a laser beam welding process is used here. However, alternative welding processes are also conceivable, for example a
[0047] High frequency welding process.
[0048] Figure 4a shows a schematic front view of a pull-out guide before a welding process and Figure 4b after a welding process.
[0049] These figures again show that the fastening sections 3 and the cabinet rail 2 are connected to each other at the end faces. Furthermore, it is also evident that the fastening sections 3 are arranged essentially in the same plane as a leg 2b of the essentially U-shaped cabinet rail 2.
[0050] Reference character list:
[0051] 1 pull-out guide
[0052] 2 cabinet rails
[0053] 2a front side
[0054] 2b Leg
[0055] 3 Fastening section
[0056] 3a front side
[0057] 3b hole pattern
[0058] 4 fasteners
[0059] 5 Drawer rail
[0060] 5a balance bike
[0061] 100 pieces of furniture
[0062] 101 Fixed furniture part
[0063] 102 drawer
Claims
Patent claims 1. Pull-out guide (1) for a drawer (102) with at least one carcass rail (2) to be fastened to a fixed furniture part (101) and at least one fastening section (3) via which the at least one carcass rail (2) can be fastened to the fixed furniture part (101), characterized in that the at least one fastening section (3) is butt-welded to the at least one carcass rail (2).
2. Pull-out guide according to claim 1, wherein the at least one body rail (2) and the at least one fastening section (3) each have at least one end face (2a, 3a), wherein the at least one body rail (2) and the at least one fastening section (3) are connected to one another at the end faces (2a, 3a).
3. Pull-out guide according to claim 2, wherein the end faces (2a, 3a) are formed by a material thickness of the at least one body rail (2) and / or the at least one fastening section (3), preferably wherein the at least one body rail (2) and the at least one fastening section (3) have substantially the same material thickness.
4. Pull-out guide according to one of claims 1 to 3, wherein the at least one body rail (2) is substantially U-shaped.
5. Pull-out guide according to claims 2 and 3, wherein the at least one end face (2a) of the at least one body rail (2) is arranged on a leg (2b) of the U-shaped body rail (2).
6. Pull-out guide according to one of claims 4 or 5, wherein the at least one fastening section (3) is arranged substantially in a Level with one leg (2b) of the U-shaped body rail (2).
7. Pull-out guide according to one of claims 1 to 6, wherein at least two fastening sections (3) are provided, preferably wherein the at least two fastening sections (3) are connected to the at least one carcass rail (2) at a distance from one another along a longitudinal extent (L) of the at least one carcass rail (2).
8. Pull-out guide according to one of claims 1 to 7, wherein the at least one fastening section (3) has a hole pattern (3b) for receiving a fastening means (4).
9. Pull-out guide according to one of claims 1 to 8, wherein the fastening section (3) is arranged vertically in an assembly position.
10. Pull-out guide according to one of claims 1 to 9, wherein the at least one fastening section (3) is connected to the at least one body rail (2) via a laser beam and / or a high-frequency welding process.
11. Pull-out guide according to one of claims 1 to 10, wherein the fastening section (3) is substantially cuboid-shaped.
12. Pull-out guide according to one of claims 1 to 11, wherein a length (3c) of the at least one fastening section (3) is smaller than a length (2c) of the carcass rail (2), preferably wherein the length (3c) of the fastening section comprises between 1 / 10 and 1 / 5 of the length (2c) of the carcass rail (2c).
13. Pull-out guide according to one of claims 1 to 12, wherein the pull-out guide (1) has a drawer rail (5) to be connected to a drawer, which is mounted so as to be movable relative to the body rail (2).
14. Pull-out guide according to one of claims 1 to 13, wherein the pull-out guide (1) has a central rail which is movably mounted between the body rail (2) and the drawer rail (5).
15. Furniture (100) comprising a fixed furniture part (101), preferably a furniture body, a drawer (102) and at least one pull-out guide (1) according to one of the preceding claims, wherein the drawer (102) is mounted on the fixed furniture part (101) so as to be movable via the at least one pull-out guide (1).
16. A method for producing a pull-out guide (1), preferably according to one of claims 1 to 14, comprising the following steps: Providing at least one body rail (2), preferably wherein the body rail (2) is bent substantially into a U-shape, providing at least one fastening section (3), and Butt welding the at least one body rail (2) to the at least one fastening section (3).
17. The method according to claim 16, wherein a laser beam and / or a high-frequency welding process is used.