System for mounting a telescopic extension on a side grate

Abstract

System for the detachable mounting of a telescopic extension (1) with a side railing (10) comprising at least one front vertical railing bar (11) and a rear vertical railing bar (12) spaced apart from and substantially parallel to the front vertical railing bar (11), at least two or more vertically arranged pairs of horizontal railing bars (13, 14, 15, 16) extending between the vertical railing bars (11, 12) and being fixed to and connecting the vertical railing bars (11, 12) with their respective end sections, and with at least one quick-release fastening element (100, 100') for detachably mounting a telescopic extension (1) to the side railing (10) on vertically arranged sections of the respective lower or upper horizontal railing bars of two vertically arranged pairs of horizontal railing bars (13, 14, 15, 16),wherein the quick-fastening element (100) has first and second retaining sections (101, 101', 102, 102') which are designed for a positive and / or force-fit engagement of the quick-fastening element (100, 100') with the horizontal bars of the side grille (10), and a connecting section (103, 103') arranged between the first retaining section (101, 101') and the second retaining section (102, 102') and connecting the retaining sections (101, 102), wherein the first and second retaining sections (101, 101', 102, 102') extend at an angle to one side from the connecting section (103, 103') and are arranged and designed at a distance from each other for a positioning and engagement of the quick-fastening element (100, ... 100') with the facing sides of the lower horizontal grid bar (14) of the first pair of horizontal grid bars (13,14) and the lower horizontal grid bar (16) of the second pair of horizontal grid bars (15, 16) or for connecting and engaging the quick-fastening element (100, 100') with the facing sides of the upper horizontal grid bar (14) of the first pair of horizontal grid bars (13, 14) and the upper horizontal grid bar (16) of the second pair of horizontal grid bars (15, 16), wherein the connecting section (103, 103') has a fastening section (104, 104') for fastening the stationary rail element (2, 2') of a telescopic extension (1).

Description

SUBJECT OF THE INVENTION

[0001] The present invention relates to a system for the detachable mounting of a telescopic extension on a side rack, preferably a side rack for ovens. BACKGROUND OF THE INVENTION

[0002] Standard ovens have features on the opposing inner walls of the oven cavity for inserting and holding the oven rack supports (baking trays, oven racks, drip trays, etc.) at various heights within the cavity. These features can take the form of projections or groove-shaped recesses in the inner walls. More commonly, however, the inner walls of the cavity are fitted with metal grid-like side panels, known as side grids, featuring horizontal bars for inserting and holding the oven rack supports.

[0003] Typically, such side racks have at least two bars arranged vertically and essentially parallel to each other when mounted, as well as several horizontal bars arranged at different heights inside the muffle, which are attached to and connect the vertical bars. The horizontal bars of the side racks, which are arranged on both sides of the muffle's inner walls, serve for placing and inserting the cooking trays; therefore, they are usually positioned at a distance in front of the plane formed by the vertical bars, towards the interior of the muffle. For connection to and attachment to the vertical bars, the horizontal bars each have an angled end section at their opposite ends.

[0004] To prevent the oven rack from tipping over when, for example, it is not completely removed from the oven cavity for handling or inspecting the food, such side racks typically feature pairs of horizontal bars arranged close together. This spacing is large enough to allow the oven rack to be inserted between the two horizontal bars, but small enough that the rack's rear edge can rest against the upper horizontal bar to prevent it from tipping over. The horizontal bars are usually made of wire or rod with a circular cross-section, as this allows for cost-effective manufacturing.

[0005] Modern, high-end ovens are additionally equipped with telescopic runners for holding and moving the oven racks. Besides the smooth movement of the racks, another advantage of using telescopic runners is that, with a sufficient number of independently movable rail sections, they allow the rack to be pulled out far or even completely from the oven cavity without tipping over. These telescopic runners are typically attached to existing side racks in the oven cavity. A stable yet easily removable and re-attachable mounting is practical and desirable to allow for easy removal and reinstallation of the runners for cleaning, adjusting their position within the cavity, or even cleaning the oven itself.Various systems are known for the detachable attachment of telescopic extensions to side rails, in which at least one, often two or more fastening elements are provided for mounting the so-called stationary rail element of the telescopic extension to the side rail.

[0006] The desired outcome is that the fastening elements allow for quick and easy, preferably tool-free, assembly and disassembly of a telescopic extension on a side rail. They should securely fix the telescopic extension, or its stationary rail element, to the side rail, preventing tilting and unintentional loosening. Known fastening elements are attached to and / or supported either on a single horizontal rail or on both horizontal rails of a pair of vertically stacked rails. Often, additional fastening and / or support is provided on a vertical rail and / or on an angled end section of the horizontal rail. This is necessary, at least when fastening to only one horizontal rail, to prevent the fastening from tilting around the horizontal rail.

[0007] Common fastening elements designed for easy, tool-free assembly and disassembly often have the disadvantage of providing insufficient stability for attaching the telescopic extension and, under certain load conditions or other circumstances, even being unintentionally detached from the side panel. Conversely, other fastening elements intended to prevent this often include locking mechanisms that complicate the assembly and disassembly of the telescopic extension, sometimes even requiring special tools.

[0008] EP 1 158 185 B1 describes a fastening element for attaching the stationary rail element of a telescopic extension to the two horizontal bars of a pair of horizontal bars arranged directly above one another in a side railing. The fastening element has an upper retaining section that, when installed, grips the upper horizontal bar from above, and a lower retaining section that, when installed, grips the lower horizontal bar from below. For installation, the upper retaining section is placed over the upper horizontal bar, and the lower retaining section is pivoted towards the lower horizontal bar, guided over it, and locked into place. Additionally, a tab is provided between the upper and lower retaining sections, which, during installation, is guided over the lower horizontal bar and comes to rest above it.Furthermore, a locking projection is provided between the lower and upper retaining sections and above the tab. The upper horizontal grid bar rests against this projection to prevent the horizontal grid bars from flexing and to maintain a consistent distance between the two grid bars, at least in the area of ​​the fasteners, even under significant vertical loads. This prevents the fastener from unintentionally detaching from the grid bars. Additionally, the load on the fastener should be distributed as evenly as possible across both grid bars.

[0009] DE 20 2005 013 789 U1 describes a further fastening element with which the stationary rail element of a telescopic extension is attached to the two horizontal bars of a pair of horizontal bars arranged directly above one another in a side railing. The fastening element has one or two upper retaining sections which, in the assembled state, grip the upper horizontal bar from above, and one or two lower retaining sections which, in the assembled state, grip the lower horizontal bar from below. For assembly, the horizontal bars must be compressed to guide the retaining sections over the horizontal bars.

[0010] EP 1 965 680 describes a fastening system for attaching a telescopic extension to a side grille, comprising two fastening elements. These elements are attached near the two end sections on the side of the stationary rail element facing the muffle side wall and are used to mount the telescopic extension on the side of a single horizontal grille bar of the side grille that faces the interior of the muffle. Each of the two fastening elements has two U-shaped sections oriented substantially at an angle of 90° to each other. A first U-shaped section of each of the two fastening elements clamps around the horizontal grille bar along its longitudinal extent, with the opening of the U-shaped section facing the muffle side wall.The second U-shaped section of each of the two fastening elements, arranged perpendicular to the first U-shaped section, engages the horizontal grid bar at one of its angled end sections, with the openings of these second U-shaped sections facing each other. To mount the telescopic extension, it is slid horizontally onto the horizontal grid bar towards the side wall of the muffle. The second U-shaped sections engaging the grid bar at its angled end sections prevent the telescopic extension from tipping. The first U-shaped sections, designed to engage with the horizontal grid bar along its length, have an embossed notch to secure the fastening element to the grid bar. Therefore, when sliding the quick-release fasteners onto the grid bar, force must be applied to lock the U-shaped sections into place. TASK OF INVENTION

[0011] The object of the present invention was to provide a system for the detachable mounting of a telescopic extension on a side rack, preferably a side rack for ovens, which eliminates the disadvantages of the prior art and allows for quick, easy and stable mounting of the telescopic extension on a side rack. DESCRIPTION OF THE INVENTION

[0012] This problem is solved by a system according to the attached independent claim 1. Embodiments and further configurations are described in the dependent subclaims.

[0013] The system according to the invention for the detachable mounting of a telescopic extension to a side rack, preferably a side rack for ovens, comprises a side rack and at least one quick-release fastener. For mounting a telescopic extension, two quick-release fasteners are advantageously used, one in the front region and one in the rear region of the telescopic extension. Therefore, the system according to the invention preferably comprises at least two quick-release fasteners of the type according to the invention. In alternative embodiments, one quick-release fastener according to the invention can be used for mounting the telescopic extension in the front region of the side rack, and an alternative fastening means, for example, a fastening means of a type known per se, can be used for mounting the telescopic extension in the rear region of the side rack.In this context, "front" or "front section" refers to the section or area of ​​the side rack or telescopic extension that points in the extension direction of the telescopic extension. In the case of an oven, this is the section or area that points towards the oven opening. "Rear" or "rear section," on the other hand, refers to the section or area of ​​the side rack or telescopic extension that points in the insertion direction of the telescopic extension. In the case of an oven, this is the section or area that points towards the rear wall of the oven cavity.

[0014] The side grille of the system according to the invention comprises at least one front vertical grille bar and a rear vertical grille bar spaced apart from the front vertical grille bar and arranged substantially parallel thereto, at least two or more vertically arranged pairs of horizontal grille bars, which extend between the vertical grille bars and are fixed to the vertical grille bars with their respective end sections and connect them, wherein each pair of horizontal grille bars has an upper horizontal grille bar and a lower horizontal grille bar arranged vertically spaced below it.

[0015] In the side grille of the system according to the invention, the upper and lower horizontal bars of each pair of horizontal bars are designed differently. A quick-fastening element according to the invention is attached by engaging with a horizontal bar of a first pair of horizontal bars and engaging with a horizontal bar of a second pair of horizontal bars, which is arranged vertically below the first pair of horizontal bars.The fastening is achieved either on the upper horizontal bars of each pair of horizontal bars or on the lower horizontal bars of each pair of horizontal bars, so that the quick-release fastener is guided past the upper horizontal bar of the lower pair of horizontal bars or the lower horizontal bar of the upper pair of horizontal bars. In a preferred embodiment, the fastening is achieved on the lower horizontal bars of each pair of horizontal bars.

[0016] In a preferred embodiment of the invention, the lower horizontal bar of each pair of horizontal bars has a front angled end section, a rear angled end section, and a horizontal section, wherein the front angled end section is connected to the front vertical bar, extends out of the plane spanned by the two vertical bars, and transitions at an angle into the horizontal section of the horizontal bar; the rear angled end section is connected to the rear vertical bar, extends out of the plane spanned by the two vertical bars, and transitions at an angle into the horizontal section of the horizontal bar; and the horizontal section extends in front of the plane spanned by the two vertical bars between the front angled end section and the rear angled end section.

[0017] In a preferred embodiment, the upper horizontal bar of each pair of horizontal bars has a front straight end section, a front cranked intermediate section, a horizontal section, a rear cranked intermediate section, and a rear straight end section, wherein the front straight end section is connected to the front vertical bar, extends parallel to the horizontal section of the lower horizontal bar in the direction of the rear vertical bar, and transitions at an angle into the front cranked intermediate section at a distance from the front vertical bar, the front cranked intermediate section extending out of the plane spanned by the two vertical bars and transitioning at an angle into the horizontal section of the horizontal bar.the horizontal section extends in front of the plane spanned by the two vertical bars parallel to the horizontal section of the lower horizontal bar in the direction of the rear vertical bar and transitions at an angle into the rear cranked intermediate section at a distance from the rear vertical bar, the rear cranked intermediate section extends out of the plane spanned by the two vertical bars and transitions at an angle into the rear straight end section of the horizontal bar at a distance from the rear vertical bar, the rear straight end section extends parallel to the horizontal section of the lower horizontal bar in the direction of the rear vertical bar and is connected to the rear vertical bar.

[0018] In this preferred variant, quick-fastening elements according to the invention can and preferably are used in both the front and rear sections of the horizontal grid bars for the detachable mounting of a telescopic extension.

[0019] In an alternative embodiment, the upper horizontal bar of each pair of horizontal bars has a front straight end section, a front cranked intermediate section, a horizontal section, and a rear angled end section, wherein the front straight end section is connected to the front vertical bar, extends parallel to the horizontal section of the lower horizontal bar in the direction of the rear vertical bar, and transitions at an angle into the front cranked intermediate section at a distance from the front vertical bar, the front cranked intermediate section extends out of the plane spanned by the two vertical bars and transitions at an angle into the horizontal section of the horizontal bar, and the rear angled end section is connected to the rear vertical bar.extends out of the plane spanned by the two vertical bars and transitions at an angle into the horizontal section of the horizontal bar, and the horizontal section extends in front of the plane spanned by the two vertical bars parallel to the horizontal section of the lower horizontal bar in the direction of the rear vertical bar and transitions into the rear angled end section.

[0020] In this alternative embodiment, a quick-fastening element according to the invention, as defined herein, is used in the front section of the horizontal grid bars for the detachable mounting of a telescopic extension, and a conventional fastening element is used in the rear section of the horizontal grid bars, with which the rear section of a telescopic extension facing the muffle rear wall is fixed to the side grid, e.g. by hooking it in place.

[0021] The at least one quick-fastening element of the system according to the invention is provided and designed for the detachable mounting of a telescopic extension on the side grille according to the invention on vertically superimposed sections of the respective lower or upper horizontal grille bars of two pairs of horizontal grille bars.

[0022] According to the invention, the quick-release fastener has a first retaining section, which is designed for a positive and / or force-fit engagement of the quick-release fastener with a horizontal grid bar of a first pair of horizontal grid bars of the side grid, a second retaining section, which is designed for a positive and / or force-fit engagement of the quick-release fastener with a horizontal grid bar of a second pair of horizontal grid bars of the side grid arranged vertically below and spaced apart from the first pair of horizontal grid bars, and a connecting section arranged between the first retaining section and the second retaining section,wherein the first and second retaining sections extend at an angle from the connecting section to one side and are arranged and configured at a distance from each other for the quick-release fastener to engage with the facing sides of the lower horizontal bar of the first pair of horizontal bars and the lower horizontal bar of the second pair of horizontal bars, or for the quick-release fastener to engage with the facing sides of the upper horizontal bar of the first pair of horizontal bars and the upper horizontal bar of the second pair of horizontal bars, wherein the connecting section has a fastening section for attaching the stationary rail element of a telescopic extension.

[0023] The term "angled to one side" describes, with regard to the position of the retaining sections relative to the connecting section, that both retaining sections are angled to the same side relative to the connecting section. In an embodiment where the connecting section is flat or plate-shaped, there is a bend or a curve between the connecting section and each of the retaining sections. However, it is not absolutely necessary for the connecting section and the first and second retaining sections to be formed in one piece from the same material.

[0024] The different and inventive design of the upper and lower horizontal bars of each pair of horizontal bars, at least in the front area of ​​the side rack of the inventive system, facilitates the insertion of a cooking tray into the oven, even if no quick-release fastener or telescopic extension is mounted on the pair of horizontal bars. Because the front straight end section of the upper horizontal bar does not initially protrude from the plane defined by the two vertical bars towards the interior of the oven, the lower horizontal bar, which already protrudes in this area, is more easily accessible for placing a cooking tray than with conventional side racks where both horizontal bars are identical.The cooking tray is placed on the front section of the lower horizontal grid bar and can thus be easily inserted between the horizontal sections of the upper and lower horizontal grid bars.

[0025] In embodiments in which the rear straight end section of the upper horizontal grid bar is designed like the front straight end section, so that the upper horizontal grid bar is essentially symmetrical in the horizontal direction, the same side grid can advantageously be used on both opposite sides of, for example, an oven muffle.

[0026] The quick-fastening elements according to the invention are mounted on the lower horizontal bars of two pairs of horizontal bars in the sections of the lower horizontal bars where the front or rear straight end section of the upper horizontal bar of the lower pair of horizontal bars is formed. This allows the quick-fastening element according to the invention to be positioned and fastened between the lower horizontal bars without any section of the upper horizontal bar of the lower pair of horizontal bars obstructing the installation. The quick-fastening element is clamped between the two lower horizontal bars of the two pairs of horizontal bars using its two retaining sections.

[0027] In embodiments of the invention, the system comprises two side grids for fixing to opposite side walls of a body, preferably to opposite inner walls of an oven muffle.

[0028] Preferably, in the side grid according to the invention, the vertical distance between the upper horizontal grid bar and the lower horizontal grid bar of each pair of horizontal grid bars is less than the vertical distance between the respective lower horizontal grid bars of two vertically adjacent pairs of horizontal grid bars.

[0029] The quick-release fasteners according to the invention, mounted on the lower horizontal bars of two pairs of horizontal bars, thus extend over a greater vertical distance than is the case with conventional fastening systems, where the fasteners are fixed to the two horizontal bars of the same pair of horizontal bars. This gives the fixing of the quick-release fasteners according to the invention, mounted on the side railing, and thus the mounting of the telescopic extension, greater stability than is the case with known systems.

[0030] The quick-release fastener according to the invention, by combining two retaining sections connected by a connecting section, allows for a form-fit and / or force-fit clamping of the quick-release fastener between the horizontal bars of the side railing. This is achieved by combining two retaining sections connected by a connecting section, which, in the assembled state, rest against the opposing sides of the lower horizontal bars of two pairs of horizontal bars of the side railing. This results in greater stability and also allows for a greater tolerance of the spacing between the horizontal bars than is the case with known quick-release fasteners. The special design of the quick-release fastener provides a mounting section for attaching the telescopic extension between the retaining sections, enabling optimal positioning of the telescopic extension.The position of the mounting section, and thus the positioning of the telescopic extension, can be selected within the large distance between the holding sections, thereby providing both optimal space utilization and great variability.

[0031] Due to the special design of the quick-release fastener and its large span between two lower horizontal bars, it is also possible to provide sufficient space above and below the telescopic extension to be attached, and, depending on the design of the quick-release fastener, possibly also between the telescopic extension and the fastener, for attaching further elements to the telescopic extension and / or the fastener. These include elements or devices for a self-closing mechanism for the telescopic extension, for synchronizing the telescopic extension, braking elements, mounting brackets, etc.

[0032] In embodiments of the invention, the system according to the invention comprises, in addition to the side rail or a pair of side rails and the quick-fastening element or several quick-fastening elements, at least one telescopic extension which has a stationary rail element and at least one rail element which is mounted to be movable relative to the stationary rail element.

[0033] In some embodiments, the telescopic extension has exactly one rail element that is movably mounted relative to the stationary rail element and is thus designed as a so-called partial extension. In alternative embodiments, the telescopic extension has two or more rail elements that are movably mounted relative to the stationary rail element and is thus designed as a so-called full extension. In this case, a first rail element is movably mounted on the stationary rail element, and a further rail element is movably mounted on it.

[0034] In embodiments, at least the stationary rail element of the telescopic extension has a substantially C-shaped cross-sectional profile with a rail back formed by the web of the C-profile and raceways for balls of a ball bearing or sliding surfaces for sliding elements of a sliding bearing formed on the flanges of the C-profile.

[0035] In further embodiments, at least the rail element of the telescopic extension furthest from the stationary rail element also has a substantially C-shaped cross-sectional profile.

[0036] In this context, an inner rail is defined as a rail element with a C-shaped cross-sectional profile, which has the lowest rail back height and is encompassed by the rail element movably mounted on it in the area of ​​the raceways. An outer rail is defined in this context as a rail element with a C-shaped cross-sectional profile, which has the highest rail back height and encompasses the rail element movably mounted on it in the area of ​​the raceways. The stationary rail element in the system of the present invention can be configured as either an inner or an outer rail.

[0037] In embodiments of the invention, two quick-release fasteners are detachably or permanently fixed to the stationary rail element of the telescopic extension at a distance from each other, wherein the quick-release fasteners are expediently arranged at a distance from each other which is dimensioned such that, when the telescopic extension is mounted on the side railing, the quick-release fasteners are positioned on the respective lower horizontal bars of two pairs of horizontal bars with respect to the vertical in the sections of the respective lower horizontal bars that lie between the respective angled end sections of the lower horizontal bars and in which the front or rear straight end section of the upper horizontal bar of the vertically lower pair of the two pairs of horizontal bars is formed.

[0038] The two quick-release fasteners are preferably attached to the stationary rail element of the telescopic extension, either permanently or releasably, by means of a screw connection, a weld connection or a rivet connection.

[0039] In embodiments of the quick-fastening element according to the invention, the connecting section between the retaining sections is essentially plate-shaped, and the fastening section for attaching the stationary rail element of a telescopic extension is a section or area of ​​the plate-shaped connecting section. The fastening section is thus formed by a section in the same plane as the plate-shaped connecting section.

[0040] In further embodiments of the quick-fastening element according to the invention, the connecting section between the retaining sections is also essentially plate-shaped, and the fastening section for attaching the stationary rail element of a telescopic extension is designed as a cranked tab projecting from the plane of the plate-shaped connecting section, wherein the tab preferably has a plate-shaped section arranged parallel to the plane of the plate-shaped connecting section for fastening to the back of the stationary rail element of the telescopic extension. The fastening section is thus formed by a tab projecting from the plane of the plate-shaped connecting section, so that the stationary rail element is fastened at a distance in front of the plane of the plate-shaped connecting section.

[0041] The fastening section, designed as a tab, can be material punched out of the connecting section and bent accordingly, or it can be a separately manufactured component attached to the connecting section. Depending on requirements, the position of the fastening section relative to the connecting section can thus be varied during the manufacturing of the quick-release fastener.

[0042] The horizontal bars of the side grille according to the invention can have any cross-sectional profile that is technically suitable for a person skilled in the art. Preferably, however, the horizontal bars of the side grille have a circular cross-sectional profile. Bars with a circular cross-sectional profile are inexpensive to manufacture or are readily available, are easily formable, and offer sufficient stability for the manufacture of the side grille.

[0043] In embodiments, the retaining sections of the quick-release fastener have a curved cross-sectional profile, at least in areas intended for engagement with the lower horizontal bars of two pairs of horizontal bars, for partially gripping the lower horizontal bars. Preferably, the curved cross-sectional profile is designed such that it grips the horizontal bar over an angle of at least 100 degrees, with the retaining section bearing against at least the vertically downward-facing underside of the upper horizontal bar and the vertically upward-facing top side of the lower horizontal bar. The retaining section need not be in contact with the horizontal bar over the entire angle of engagement.In embodiments, the curved cross-sectional profile of the retaining sections of the quick-fastening element is adapted to the contour of the lower horizontal grid bars, i.e., in the case of horizontal grid bars with, for example, a circular cross-sectional profile, it is formed with an essentially circular segment-shaped inner contour, wherein the radius of the circular segment-shaped inner contour of the curved cross-sectional profile is expediently equal to or greater than the radius of a circle circumscribing the cross-sectional profile of the horizontal grid bar.

[0044] In some embodiments, one or both retaining sections of the quick-release fastener have a locking lug, which is designed and arranged for a releasable locking action of the respective retaining section with the horizontal grid bar. Preferably, the locking lug protrudes from and is formed within the material of the respective retaining section. Such a locking lug enables a secure, positive engagement of the retaining section with the horizontal grid bar.

[0045] In one embodiment, the quick-release fastener is elastically designed to allow for a reduction in the distance between the first and second retaining sections when a force is applied. This elastic design of the quick-release fastener as a whole, and in particular of the connecting section between the first and second retaining sections, provides a quick-release fastener that tolerates fluctuations in the spacing of the horizontal bars to which it is mounted, while still enabling the secure attachment of a telescopic extension. This elasticity ensures a force-fit connection between the quick-release fastener and the two horizontal bars, regardless of the design of the retaining elements.Furthermore, such an elastic design allows for a reduction of the distance between the first and second holding section by applying a force for mounting the quick-release fastener to the side grille and clamping the quick-release fastener between the two lower horizontal grille bars.

[0046] In one embodiment, the first and / or the second retaining section has an actuating tab that connects to the retaining section on its side facing away from the connecting section, preferably the actuating tab being an extension of the retaining section. Such an actuating tab facilitates the attachment of a TeThe telescopic extension with the quick-release fastener on the side panel is supported by the mechanism, as it facilitates insertion and the application of the necessary force for elastic deformation of the quick-release fastener. Furthermore, it also makes it easier to remove the quick-release fastener from the grid-like side panel, as pressing on or pulling on the actuating tab reduces the distance between the first and second retaining sections to such an extent that at least the retaining section on which the actuating tab is located can be disengaged from the respective rod. The actuating tab provides a surface that is easy to grip with several fingers or operate with one finger.

[0047] In one embodiment, tabs are formed on one or both opposing side edges of the connecting section, extending essentially in or parallel to the plane of the plate-shaped connecting section, or at an angle to this plane. The term "side edges" refers to the edges of the connecting section to which no retaining section adjoins. Such a tab is designed to engage with one of the vertical bars of the side panel to stabilize the quick-release fastener, thereby preventing the connecting section from deflecting and consequently detaching from the panel-like side, particularly under load.

[0048] The invention further comprises the use of a quick-fastening element described herein for attaching a telescopic extension to a side rack, preferably to a side rack of an oven, which is designed as described herein. FIGURES

[0049] Further advantages, features and embodiments of the present invention are explained below with reference to several exemplary embodiments in relation to the attached figures, which are merely exemplary and do not limit the scope of protection.

[0050] They show: Figure 1 shows an embodiment of a side grille according to the invention in a perspective view from a front oblique angle; Figure 2 shows a first embodiment of a quick-fastening element according to the invention in a perspective view from a front oblique angle (left view) and in a side view (right view); Figure 3 shows a second embodiment of a quick-fastening element according to the invention in a perspective view from a front oblique angle (left view) and in a side view (right view); Figure 4 shows the side grille of the embodiment according to Figure 1 with two quick-fastening elements of the first embodiment mounted thereon according to Figure 2 in a perspective view from an oblique front view; Figure 5 the side grid of the embodiment according to Figure 1 with two quick-fastening elements of the first embodiment mounted thereon according to Figure 2with a stationary rail element of a telescopic extension fixed to it, shown in a perspective view from an oblique front view; Figure 6 the side grille of the embodiment according to Figure 1 with two quick-fastening elements of the first embodiment mounted thereon according to Figure 2 with a telescopic extension fixed to the stationary rail element in a perspective view from an oblique front view; Figure 7 the side grille of the embodiment according to Figure 1 with two quick-fastening elements of the second embodiment mounted thereon according to Figure 3 in a perspective view from an oblique front view; Figure 8 the side grid of the embodiment according to Figure 1 with two quick-fastening elements of the second embodiment mounted thereon according to Figure 3with a stationary rail element of a telescopic extension fixed to it, shown in a perspective view from an oblique front view; Figure 9 the side grille of the embodiment according to Figure 1 with two quick-fastening elements of the second embodiment mounted thereon according to Figure 3 with a telescopic extension fixed to the stationary rail element in a perspective view from an oblique front view; Figure 10 an alternative embodiment of a side grille according to the invention in a perspective view from an oblique front view.

[0051] In the Figures 1 to 10 Corresponding elements can be provided with the same reference numbers, even if they are not necessarily identical in their various embodiments. DETAILED DESCRIPTION OF THE INVENTION

[0052] The in the Figure 1 and 4 to 9The embodiment shown of a side grille 10 of the system according to the invention has a front vertical grille bar 11 and a rear vertical grille bar 12 spaced apart from it and arranged substantially parallel to it, and in this embodiment four vertically arranged pairs of horizontal grille bars 13, 14, 15 and 16, which extend between the vertical grille bars 11 and 12 and are welded to the vertical grille bars 11 and 12 with their respective end sections.

[0053] Each pair of horizontal bars 13, 14, 15 and 16 has an upper horizontal bar 13, 15 and a lower horizontal bar 14, 16 arranged vertically spaced below it.

[0054] The lower horizontal bar 14, 16 of each pair of horizontal bars 13, 14, 15, 16 has a front angled end section 14a, 16a, a rear angled end section 14c, 16c, and a horizontal section 14b, 16b. The front angled end section 14a, 16a is connected to the front vertical bar 11, extends substantially perpendicularly out of the plane spanned by the two vertical bars 11 and 12, and transitions at a 90-degree angle into the horizontal section 14b, 16b of the horizontal bar 14, 16. Accordingly, the rear angled end section 14c, 16c is connected to the rear vertical grid bar 12, also extends essentially perpendicularly out of the plane spanned by the two vertical grid bars 11 and 12 and transitions at a 90-degree angle into the horizontal section 14b, 16b of the horizontal grid bar 14, 16.The horizontal section 14b, 16b extends at a distance in front of the plane spanned by the two vertical grid bars 11, 12 between the front angled end section 14a, 16a and the rear angled end section 14c, 16c of the respective horizontal grid bar 14, 16.

[0055] In the Figure 1 and 4 to 9In the illustrated embodiment of a side grille 10, the upper horizontal grille bar 13, 15 of each pair of horizontal grille bars 13, 14, 15 and 16 has a front straight end section 13a, 15a, a front cranked intermediate section 13b, 15b, a horizontal section 13c, 15c, a rear cranked intermediate section 13d, 15d and a rear straight end section 13e, 15e. The front straight end section 13a, 15a is connected to the front vertical grille bar 11, extends parallel to the horizontal section 14b, 16b of the lower horizontal grille bar 14, 16 in the direction of the rear vertical grille bar 12 and transitions at a 90-degree angle from the front vertical grille bar 11 into the front cranked intermediate section 13b, 15b.The front cranked intermediate section 13b, 15b extends substantially perpendicularly from the plane spanned by the two vertical bars 11, 12 and transitions at a 90-degree angle into the horizontal section 13c, 15c of the horizontal bar 13, 15. The horizontal section 13c, 15c extends parallel to the horizontal section 14b, 16b of the lower horizontal bar 14, 16 in the direction of the rear vertical bar 12 and at a substantially equal distance in front of the plane spanned by the two vertical bars 11 and 12, and transitions at a 90-degree angle into the rear cranked intermediate section 13d, 15d. The rear cranked intermediate section 13d, 15d extends out of the plane spanned by the two vertical grid bars 11, 12 and transitions at a distance from the rear vertical grid bar 12 at an angle of 90 degrees into the rear straight end section 13e, 15e of the horizontal grid bar 13, 15.The rear straight end section 13e, 15e extends parallel to the horizontal section 14b, 16b of the lower horizontal grid bar 14, 16 in the direction of the rear vertical grid bar 12 and is welded to the rear vertical grid bar 12.

[0056] In the Figure 10 In the alternative embodiment of a side grille 10 shown, the lower horizontal grille bar 14, 16 of each pair of horizontal grille bars 13, 14, 15 and 16 is as in the one shown in the Figure 1 and 4 to 9The embodiment shown is designed as follows. In the two upper pairs of horizontal bars 13, 15, the upper horizontal bar of each pair has a front straight end section 13a, 15a, a front cranked intermediate section 13b, 15b, a horizontal section 13c, 15c, and a rear angled end section 13f, 15f. In the rear region of the side grille, the upper horizontal bar 13, 15 is designed like the lower horizontal bar 14, 16. Although in the Figure 10 The illustration shows two further pairs of horizontal grid bars as in the embodiment described above, according to the Figure 1 and 4 to 9 Given that they are designed, it is understood that in such a side grid all pairs of horizontal grid bars can be designed like the two uppermost pairs of horizontal grid bars.

[0057] Figure 2Figure 1 shows a first embodiment of a quick-fastening element 100 according to the invention for the detachable mounting of a telescopic extension 1 on the side railing 10 on vertically superimposed sections of the lower horizontal railing bars 14, 16 of two pairs of horizontal railing bars 13, 14, 15, 16. In this embodiment, the quick-fastening element 100 has a first retaining section 101 and a second retaining section 102 as well as a connecting section 103 arranged between the retaining sections 101 and 102 and connecting the retaining sections 101 and 102.The retaining sections are designed for a form-fit and / or force-fit engagement of the quick-fastening element 100 with the lower horizontal grid bar 14 of a first pair of horizontal grid bars 13, 14 of the side grid 10 with the lower horizontal grid bar 16 of a second pair of horizontal grid bars 15, 16 of the side grid 10 vertically spaced from the first pair of horizontal grid bars 13, 14, as for example in . Figure 4The two retaining sections 101 and 102 are angled to one side from the connecting section 103 and are arranged and designed for the insertion and engagement of the quick-fastening element 100 with the facing sides of the lower horizontal grating bar 14 of the first pair of horizontal grating bars 13, 14 and the lower horizontal grating bar 16 of the second pair of horizontal grating bars 15, 16. The horizontal grating bars 13 and 14 have a substantially circular cross-sectional profile, and the surfaces of the retaining sections 101 and 102, which are aligned for insertion on the horizontal grating bars 13 and 14, are adapted to the contour of the horizontal grating bars 13 and 14 so that they partially engage the horizontal grating bars 13 and 14.The connecting section 103 of the quick-fastening element 100 has a fastening section 104 for fastening the stationary rail element 2 of a telescopic extension 1, as is also the case in the . Figures 5 and 6 The fastening section 104 for fastening the stationary rail element 2 is, in this embodiment, a section of the plate-shaped connecting section 103.

[0058] Figure 3 shows a second embodiment of a quick-fastening element 100' according to the invention, which differs from the one in Figure 2The first embodiment shown differs essentially in that the fastening section 104' for fastening the stationary rail element 2' of a telescopic extension 1 is designed as a tab projecting from the plane of the plate-shaped connecting section 103' at an angle, wherein the tab preferably has a plate-shaped section arranged parallel to the plane of the plate-shaped connecting section 103' for a contact and fastening of the rail back of the stationary rail element 2', so that the stationary rail element is fastened at a distance in front of the plane of the plate-shaped connecting section. The fastening section designed as a tab is formed from material punched out of the connecting section and bent accordingly.

[0059] The holding sections 101 and 101' of both embodiments of quick-fastening elements 100 and 100' according to Figures 2 and 3Each retaining section 101, 101' further features a locking lug 105, 105', which is arranged and designed for a releasable locking of the engagement of the respective retaining section 101, 101' with the horizontal grid bar 14, 16. The locking lug 105, 105' protrudes from and is formed within the material of the respective retaining section 100, 100'.

[0060] Furthermore, the data in the Figures 2 and 3The quick-release fasteners 100 and 100' shown each have an actuating tab 106, 106' on their respective lower retaining section 101, 101'. This actuating tab connects to the retaining section 101, 101' on its side facing away from the connecting section 103, 103', and is an extension of the retaining section. The actuating tab facilitates the attachment of a telescopic extension 1 to the side panel 10 using the quick-release fasteners 100, 100', as it makes insertion and the application of the necessary force for elastic deformation of the quick-release fastener easier.

[0061] For the purposes of the original disclosure, it is pointed out that all features as they can be deduced by a person skilled in the art from the present description, the drawings, and the claims, even if they are specifically described only in connection with certain other features, can be combined individually or in any combination with other features or groups of features disclosed herein, unless this has been expressly excluded or technical circumstances render such combinations impossible or pointless. A comprehensive, explicit description of all conceivable combinations of features is omitted here solely for the sake of brevity and readability.

[0062] While the invention has been illustrated and described in detail in the drawings and the preceding description, this illustration and description are merely exemplary and are not intended to limit the scope of protection as defined by the claims. The invention is not limited to the disclosed embodiments.

[0063] Variations of the disclosed embodiments are obvious to a person skilled in the art from the drawings, the description, and the accompanying claims. In the claims, the word "have" does not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude multiple features. The mere fact that certain features are claimed in different claims does not preclude their combination. Reference numerals in the claims are not intended to limit the scope of protection. Reference symbol list

[0064] 1 Telescopic extension 2, 2' stationary rail element 3, 3' movable rail element 10 Side grille 11 Front vertical grille bar 12 Rear vertical grille bar 13 Upper horizontal grille bar 13a-e Sections of the upper horizontal grille bar 13a Front straight end section 13b Front cranked intermediate section 13c Horizontal section 13d Rear cranked intermediate section 13e Rear straight end section 13f Rear angled end section 14 Lower horizontal grille bar 14a-c Sections of the lower horizontal grille bar 14a Front angled end section 14b Horizontal section 14ch Rear angled end section 15 Upper horizontal grille bar 15a-e Sections of the upper horizontal grille bar 15a Front straight end section 15b Front cranked intermediate section 15c Horizontal section 15d Rear cranked intermediate section 15e Rear straight end section 15f Rear angled end section 16 Lower horizontal grid bar 16a-c Sections of the lowerHorizontal grid bar 16 front angled end section 16b horizontal section 16 rear angled end section 100, 100' quick-release fastener 101, 101' first retaining section 102, 102' second retaining section 103, 103' connecting section 104, 104' fastening section 105, 105' locking lug 106, 106' actuating tab

Claims

1. System for the detachable mounting of a telescopic extension (1) to a side rack (10), preferably a side rack (10) for ovens, wherein the system comprises: a) a side rack (10) comprising: - at least one front vertical rack bar (11) and a rear vertical rack bar (12) spaced apart from and substantially parallel to the front vertical rack bar (11), - at least two or more vertically arranged pairs of horizontal rack bars (13, 14, 15, 16) extending between the vertical rack bars (11, 12) and being fixed to and connecting the vertical rack bars (11, 12) with their respective end sections, - wherein each pair of horizontal rack bars (13, 14, 15, 16) comprises an upper horizontal rack bar (13, 15) and a lower horizontal rack bar (14, 16) arranged vertically spaced below it, b) at least one quick-release fastener (100,100') for the detachable mounting of a telescopic extension (1) on the side grille (10) on vertically superimposed sections of the respective lower horizontal grille bars (14, 16) of two vertically superimposed pairs of horizontal grille bars (13, 14, 15, 16) or of the respective upper horizontal grille bars (13, 15) of two vertically superimposed pairs of horizontal grille bars (13, 14, 15, 16), wherein the quick-release fastener (100) comprises: - a first retaining section (101, 101') which is designed for a positive and / or force-fit engagement of the quick-release fastener (100, 100') with a horizontal grille bar (14) of a first pair of horizontal grille bars (13, 14) of the side grille (10), - a second retaining section (102, 102') which is designed for a positive- and / or force-fit engagement of the quick-fastening element (100,100') with a horizontal grid bar (16) of a second pair of horizontal grid bars (15, 16) of the side grid (10) arranged vertically below the first pair of horizontal grid bars (13, 14) and spaced apart from them, - a connecting section (103, 103') arranged between the first retaining section (101, 101') and the second retaining section (102, 102') and connecting the retaining sections (101, 102), - wherein the first and second retaining sections (101, 101', 102, 102') extend at an angle to one side from the connecting section (103, 103') and are arranged and designed at a distance from each other for the quick-fastening element (100, 100') to engage with the opposing sides of the lower horizontal grid bar (14) of the first pair of horizontal bars (13, 14) and the lower horizontal bar (16) of the second pair of horizontal bars (15,16) or for a connection and engagement of the quick-fastening element (100, 100') with the facing sides of the upper horizontal grid bar (14) of the first pair of horizontal grid bars (13, 14) and the upper horizontal grid bar (16) of the second pair of horizontal grid bars (15, 16), - wherein the connecting section (103, 103') has a fastening section (104, 104') for fastening the stationary rail element (2, 2') of a telescopic extension (1).

2. System according to claim 1, characterized by the fact thatThe lower horizontal bar (14, 16) of each pair of horizontal bars (13, 14, 15, 16) has a front angled end section (14a, 16a), a rear angled end section (14c, 16c) and a horizontal section (14b, 16b), wherein: - the front angled end section (14a, 16a) is connected to the front vertical bar (11), extends out of the plane spanned by the two vertical bars (11, 12) and angles into the horizontal section (14b, 16b) of the horizontal bar (14, 16); - the rear angled end section (14c, 16c) is connected to the rear vertical bar (12), extends out of the plane spanned by the two vertical bars (11, 12) and angles into the horizontal section (14b, 16b) of the horizontal grid bar (14, 16) passes, - the horizontal section (14b, 16b) is in front of the two vertical grid bars (11,12) spanned plane between the front angled end section (14a, 16a) and the rear angled end section (14c, 16c), and the respective upper horizontal grid bar (13, 15) of each pair of horizontal grid bars (13, 14, 15, 16) has a front straight end section (13a, 15a), a front cranked intermediate section (13b, 15b), a horizontal section (13c, 15c), a rear cranked intermediate section (13d, 15d) and a rear straight end section (13e, 15e), wherein - the front straight end section (13a, 15a) is connected to the front vertical grid bar (11), extends parallel to the horizontal section (14b, 16b) of the lower horizontal grid bar (14, 16) in the direction of the rear vertical grid bar (12) and transitions at an angle from the front vertical grid bar (11) into the front cranked intermediate section (13b, 15b), - the front cranked intermediate section (13b,15b) extends out of the plane spanned by the two vertical bars (11, 12) and transitions at an angle into the horizontal section (13c, 15c) of the horizontal bar (13, 15), - the horizontal section (13c, 15c) extends in front of the plane spanned by the two vertical bars (11, 12) parallel to the horizontal section (14b, 16b) of the lower horizontal bar (14, 16) in the direction of the rear vertical bar (12) and transitions at an angle at a distance from the rear vertical bar (12) into the rear cranked intermediate section (13d, 15d), - the rear cranked intermediate section (13d, 15d) extends out of the plane spanned by the two vertical bars (11, 12) and transitions at an angle at a distance from the rear vertical bar (12) into the rear straight end section (13e, 15e) of the horizontal grid bar (13, 15) passes, - the rear straight end section (13e,15e) extends parallel to the horizontal section (14b, 16b) of the lower horizontal grid bar (14, 16) in the direction of the rear vertical grid bar (12) and is connected to the rear vertical grid bar (12), or the respective upper horizontal grid bar (13, 15) of each pair of horizontal grid bars (13, 14, 15, 16) has a front straight end section (13a, 15a), a front cranked intermediate section (13b, 15b), a horizontal section (13c, 15c) and a rear angled end section (13e, 15e), wherein - the front straight end section (13a, 15a) is connected to the front vertical grid bar (11), extends parallel to the horizontal section (14b, 16b) of the lower horizontal grid bar (14, 16) in the direction of the rear vertical grid bar (12) and at a distance from the front vertical grid bar (11) transitions into the front cranked intermediate section (13b, 15b), - the front cranked intermediate section (13b,15b) extends out of the plane spanned by the two vertical bars (11, 12) and transitions at an angle into the horizontal section (13c, 15c) of the horizontal bar (13, 15), - the rear angled end section is connected to the rear vertical bar, extends out of the plane spanned by the two vertical bars and transitions at an angle into the horizontal section of the horizontal bar, and - the horizontal section (13c, 15c) extends in front of the plane spanned by the two vertical bars (11, 12) parallel to the horizontal section (14b, 16b) of the lower horizontal bar (14, 16) in the direction of the rear vertical bar (12) and transitions into the rear angled end section.

3. System according to claim 1 or 2, characterized by the fact thatthe system further comprises c) a telescopic extension (1) which has a stationary rail element (2, 2') and at least one rail element (3, 3') which is mounted to be movable relative to the stationary rail element (2, 2').

4. System according to claim 3, characterized by the fact that at least the stationary rail element (2, 2') of the telescopic extension (1) has a substantially C-shaped cross-sectional profile with a rail back formed by the web of the C-profile and raceways for balls of a ball bearing or sliding surfaces for sliding elements of a sliding bearing formed on the flanges of the C-profile.

5. System according to one of claims 3 or 4, characterized by the fact that On the stationary rail element (2, 2') of the telescopic extension (1) two quick-fastening elements (100, 100') are detachably or permanently fixed at a distance from each other, preferably by screw connection, weld connection or rivet connection.

6. System according to any of the preceding claims, characterized by the fact that the connecting section (103, 103') between the retaining sections (101, 101', 102, 102') of the quick-fastening element (100, 100') is essentially plate-shaped and the fastening section (104, 104') for fastening the stationary rail element (2, 2') of a telescopic extension (1) is a section of the plate-shaped connecting section (103, 103') or the fastening section (104, 104') for fastening the stationary rail element (2, 2') of a telescopic extension (1) is designed as a tab that is cranked and projects from the plane of the plate-shaped connecting section (103, 103'), wherein the tab preferably has a plate-shaped section arranged parallel to the plane of the plate-shaped connecting section (103, 103').

7. System according to any of the preceding claims, characterized by the fact thatthe horizontal bars (13, 14, 15, 16) of the side grid (10) have a circular cross-sectional profile.

8. System according to any of the preceding claims, characterized by the fact that the vertical distance between the upper horizontal grid bar (13, 15) and the lower horizontal grid bar (14, 16) of each pair of horizontal grid bars is less than the vertical distance between the respective lower horizontal grid bars (14, 16) of two vertically adjacent pairs of horizontal grid bars.

9. System according to any of the preceding claims, characterized by the fact thatthe retaining sections (101, 101', 102, 102') of the quick-fastening element (100, 100') have, at least in areas intended for engagement with the lower horizontal bars (14, 16) of two pairs of horizontal bars, a curved cross-sectional profile for partial engagement of the lower horizontal bars (14, 16), preferably over an angle of at least 100 degrees, and / or are adapted to the contour of the lower horizontal bars (14, 16).

10. System according to any of the preceding claims, characterized by the fact that the retaining sections (101, 101', 102, 102') of the quick-fastening element (100, 100') have a locking lug (105, 105') which are arranged and designed for a releasable locking of the engagement of the retaining sections (101, 101', 102, 102') with the horizontal grid bars (14, 16).

11. Use of a quick-fastening element (100, 100') as defined in one of the preceding claims for fastening the stationary rail element (2, 2') of a telescopic extension (1) which has a stationary rail element (2, 2') and at least one rail element (3, 3') movable relative to the stationary rail element (2, 2') to a side grid (10), preferably a side grid (10) for ovens as defined in one of the preceding claims.

Images