QUICK FIXING SYSTEM

Abstract

The mounting (4) for upper (2) and lower (3) guide rails for drawers or oven shelves has a C-shaped cross-section. This forms two hooks (5) at the top and one hook (6) at the base, into which the rods fit.

Description

DESCRIPTION of the patent for a utility model having for title: "QUICK FIXING SYSTEM" belonging to the Accuride International GmbH of German nationality, in Diez, Germany Address: Werner-von-Siemens Str. 16-18, 65582 Diez, Germany Deposited on 3 or TODAY 2006 at number DESCRIPTION TEXT GE2006 U 0U0016 The present invention relates to a rapid fastening system for fixing an element to a pair of grate bars arranged at a predetermined distance, parallel to each other and essentially horizontally with an upper grate bar and a lower grate bar. An element within the meaning of the invention may be any component that is to be fixed to such paired grille bars, however, in the case of the element within the meaning of the invention it is preferably a guide rail, in particular a guide rail for a cooking support in an oven or for a drawer, for another extension or for a compartment level in a cupboard or shelf. Bars arranged in pairs at a predetermined distance, parallel to each other and essentially horizontal, can be attached in the sense of the invention to a side wall of a casing, or they can be part of a bar-like side section of an oven or another casing. In traditional ovens, bar-like side sections are used to insert and arrange cooking racks. These bar-like side sections typically have multiple pairs of horizontal bars arranged one above the other. In ovens, these bar-like side sections are arranged in front of the internal lateral walls of the muffle. of the oven. In their simplest use in an oven, cooking supports such as baking trays, baking sheets, etc., are arranged Of baking pans, grills usually with their edges sideways on the bars running railings horizontally and in the case of iron bars specific inserted between a pair arranged one on top of the other that they run horizontally. High-quality furnaces feature guide rails for inserting baking supports, especially ball-bearing telescopic rails that are attached to the side walls of the muffle or to grill-like side panels. The guide rails can be fixed to the grill-like side panels by welding or screwing, or they can be movable, for example, by hinges and / or snap-locks. A movable attachment of the guide rails to the grill-like side panels has the advantage that the rails can be removed from the grill-like side panels for cleaning or for installation on another level of the furnace and reattached to the same or another location. DE 200 10 037 U1 describes, for example, a quick-release fastener for attaching guide rails to grill-like side pieces in household appliances such as dishwashers, ovens, etc., where the quick-release fastener has an upper support section that at least partially engages a first rod of a side piece and a lower support section that at least partially engages a second rod of the side piece arranged essentially parallel to the first rod, as well as a projection between the upper and lower support sections that abuts the second lower rod of the side piece. The quick-release fastener is made of a bendable material, so that the support sections for attaching the guide rail to the grill-like side piece can be bent. elastically connected to each other, thus forming a positive and positive connection with the rods. The protrusion between the upper and lower support sections is designed so that it is located on the side opposite the lower support section of the lower rod with respect to the rod, thus ensuring the distance between the two rods remains the same even under significant vertical loads. In this sense, the rods must be prevented from moving away from each other and releasing the quick-release fastener if possible. Furthermore, any load on the quick-release fastener must be evenly distributed across the two rods. The present invention is based on the aim of providing a quick-release fastener that can be manufactured in a better, more simple and cheaper way than the prior art. This task is solved by means of a quick fastening system of an element in particular of a guide rail to grate bars arranged in pairs at a predetermined distance parallel to each other and essentially horizontally with an upper grate bar and a lower grate bar, in particular grate rods of a lateral piece similar to grates of an oven or other body, where at least one,preferably both of the upper and lower grate bars is / are a pair of sufficiently elastic grate bars and the distance between the upper and lower grate bars can be reduced by applying a force in the area between the end sections of the grate bars and the elasticity of one or both of the grate bars forwards a restoring force in the direction of the original distance of the grate bars and at least one quick-fixing element is / are provided for the element which has an upper bearing section, which hooks, partially from above an upper grate bar of a pair of grate bars, and has a support section that partially engages the corresponding lower grate bar of the pair of grate bars from below, whereby a positive and force-fit connection is created between the grate bars and the quick-release fastening element, characterised in that the upper and lower support sections of the quick-release fastening element are in close relation to each other with respect to the vertical distances. Preferably, two quick-release fasteners are provided on the element, preferably a guide rail, spaced apart. The spacing of the quick-release fasteners is chosen so that, when attaching to a pair of railings, the quick-release fasteners are positioned between the ends of the railings. Providing two quick-release fasteners is sufficient to prevent the element, and in this case the guide rail, from tipping over from the horizontal plane. Although guide rails are the preferred elements within the meaning of this invention, other elements can also be attached to the rails using the quick-release fastener according to the invention. Depending on the type of element, only one quick-release fastener may be sufficient for attachment to a pair of rails. In an alternative embodiment, elements can also be attached to the rails that extend vertically perpendicular to the horizontal direction of the guide rails and must be attached to two or more pairs of rails. Such elements can, for example, be vertically arranged rails for attachment to cooking support hinges, plans of similar, and the quick-fixing elements may be arranged vertically above each other with respect to such an element at such a distance that one of the quick-fixing elements is provided for attachment to one pair of grate bars and one or more further quick-fixing elements are provided for attachment to a further pair or pairs of grate bars above or below. In a preferred embodiment of the invention, a quick-fix element for fastening to horizontally running railings, viewed vertically from above, features a U- or V-shaped profile, in which both sides of the U- or V-shaped profile extend from the element in the direction of the railings for fastening to the railings. If the quick-fix element is U-shaped and the element is, for example, a guide rail, the two sides of the U-profile are preferably perpendicular to the longitudinal extension in the direction of the railings. In the alternative embodiment of a V-shaped quick-fix element, the two sides of the V-profile are oblique to the longitudinal extension of the element, such as a guide rail, in the direction of the railings. In a further alternative embodiment of the invention, the quick-release fastening element has an L-shaped or T-shaped profile for fastening to horizontally running railings from a vertical perspective from above, in which one leg of the L-shaped or T-shaped profile extends from the element towards the railings for fastening to the railings. In the case of an L-shaped profile, an L-shaped leg is provided for fastening. of the quick-release fastening element to the element to be fixed, such as a guide rail, and the other L-side comprises the upper and lower support sections. In the case of a T-shaped profile, the T-profile crosspiece is provided for fastening to the element, such as a guide rail, and the T-side protruding from it comprises the upper and lower support sections for fastening to the gate bars. In the case of an L- or T-shaped profile of the quick fastening element, the side intended for fastening to the railing bars of the profile is formed and, in the specific case, cut by structuring an upper support section of a lower support section. In the case of a U-shaped or V-shaped profile, which has two sides for attachment to the grate bars, in a preferred embodiment, one of the two profiles is formed and, in this case, cut by structuring an upper support section and a lower support section for attachment to the grate bars. In this preferred embodiment, the second side of the U-shaped or V-shaped profile is formed and, in this case, cut only by structuring the upper support section, and a lower support section is not provided. In this embodiment, the two upper support sections of the U-shaped or V-shaped profile are fixed on hinges for attachment to the upper grate bar, and the one lower support section is snapped onto the lower grate bar by compressing the two grate bars.Providing only a lower support section in the case of a quick fastening element of this type is sufficient since the lower railing bar after compression of the railing bars and the snap-on engagement of the element(s) of. The fastening element generally does not return completely to its initial position, but is held slightly bent under a preload due to the lower support section(s). In the case of end-fixed rails, the bending is greatest in the center of the rails, and the distance between the rails is the smallest. If two support sections are provided below the quick-release fastener, then due to the bending of the rail, the lower support element located beyond the end is in a fixed, positive-locking connection with the rail, and the lower support element located beyond the middle of the rail either has only a weakly positive-locking connection or no contact with the rail at all.In the case of a U- or V-shaped profile of the quick-release fastener, it is therefore not necessary to provide a second lower support section. Omitting the second lower support section saves material. In this sense, providing the second lower support section, when attached to a pair of railings, has a very small distance from the lower railing, can lead to a hinged closure between the lower support section and the railing. It should be noted, however, that the invention also includes the embodiment in which the two sides of the U-shaped profile or V-shaped profile are formed and, in this case, cut by structuring an upper support section and a lower support section for attachment to the gate bars. This embodiment is, for example, particularly advantageous for the stability of a fastening, when only a quick-fixing element is provided for the element to be fixed and / or the fastening element A quick-release fastener is provided centrally between the end sections of a pair of grate bars. This design is also advantageous when using multiple quick-release fasteners, arranged vertically one above the other for attachment to different pairs of grate bars. The upper support section of the fastener, formed and in this case cut, has a hook that extends downwards relative to the vertically running rail attachment for attaching a rail. The lower support section of the fastener also has a hook that extends upwards relative to the horizontally running rail attachment for attaching a rail. In this case, the hook of the upper support section is longer than the hook of the lower support section. To attach the quick-release fastener according to the invention to a pair of railings, the upper support section or the upper support sections of a quick-release fastener are hinged through the upper railing of a pair of railings, so that the upper support sections, in this case the upper support sections, engage the railing. In this case, the lower support section is first held at a distance from the lower railing, then moved towards it and pressed. The railings are compressed and elastically deformed so that at the point of the support section their distance decreases and the lower support section can be guided over the lower railing and engages it. The compression of the railings can This can be done either manually by service personnel or in such a way that an insertion chamfer is provided on the hook of the lower support section, through which the lower gate bar is guided to the upper gate bar by reducing its distance. A particularly popular quick-fastening system is one made from a formed metal plate. For example, when the element is a steel guide rail, the metal quick-fastening element can be welded, pressed, screwed, or riveted. The quick-fastening element can also be advantageously formed as a cast piece or similar, such as plastic or aluminum. The quick-fastening element can also be produced as an integral component of the metal or plastic element to be fastened. The quick-release fastening system according to the invention can be used in a variety of ways wherever elements need to be movably attached to paired rails. A highly preferred element is a telescopic rail for inserting drawers or other extensions or for arranging shelves in a cabinet or shelf. Further advantages, features and embodiments of the present invention are explained in more detail below based on various embodiment examples with reference to the attached figures. Figure 1 shows a particularly preferred embodiment of a U-shaped quick-release fastener seen from the front (Figure 1a), from the side (Figure 1b), from above (Figure 1c) and in oblique perspective from above (Figure 1d). Figure 2 shows an alternative embodiment of a U-shaped quick-release fastener seen from the front (figure 2a), from the side (figure 2b), from above (figure 2c) and in oblique perspective from above (figure 2d). Figure 3 shows an alternative embodiment of a U-shaped quick-release fastener viewed from the front (Figure 3a), from the side (Figure 3b), from above (Figure 3c) and in oblique perspective from above (Figure 3d). Figure 4 shows an alternative embodiment of an L-shaped quick-release fastener viewed from the front (Figure 4a), from the side (Figure 4b), from above (Figure 4c) and in oblique perspective from above (Figure 4d). Figure 5 shows an alternative embodiment of a T-shaped quick-release fastener viewed from the front (Figure 5a), from the side (Figure 5b), from above (Figure 5c) and in oblique perspective from above (Figure 5d). Figure 6 shows the U-shaped fastening element according to the invention according to figure 1 in clip-on fastening with a pair of grate bars in view from the front (figure 6a), from the side (figure 6b), from above (figure 6c) and in oblique perspective from above (figure 6d). Figure 7 shows the fastening of a telescopic rail to a pair of gate bars by means of a pair of quick-release fasteners according to figure 1 from the front (figure 7a), from the side (figure 7b), from above (figure 7c). Figure 8 shows three levels in the case of fixing the telescopic rail equipped with quick-release fasteners according to figure 7 to a side piece similar to oven grilles with a pair of grill bars. In figures 1 to 8 the corresponding elements are identified by the same reference numbers, even when they are not necessarily structured in an identical way in the various embodiments. Figure 1 illustrates a particularly preferred fastening element 4 according to the invention, which, when viewed from above, is designed as a U-profile. The quick-release fastening element 4 has an upper support section 5 on each of the two U-shaped sides for hinged fastening of the quick-release fastening element 4 to a railing. The U-shaped side shown on the left in Figures 1a, c and d also has a further lower support section 6 for attaching the quick-release fastening element 4. The two upper support sections 5 comprise a section designed as a downward-facing hook 7, which is intended for attaching an upper railing. The lower support section 6, which is provided on only one of the two U-shaped sides, has a section designed as an upward-facing hook 8.In order to be able to easily attach the quick-release fastener to a pair of gate bars, the hook 8 of the lower support section 6 is designed shorter than the hook 7 of the upper support section 5. The rear sides of the quick-release fastener 4 between the support sections designed as U-shaped sides are indicated in the figures with reference number 9. Figures 2, 3, 4 and 5 illustrate alternative embodiments of the quick-release fastener according to the invention. The quick-release fastener according to Figure 2 has a U-shaped profile and, in contrast to the quick-release fastener according to Figure 1, has only a lower support section 6 on the U-shaped side. shown on the left in Figure 2a) and on the right side shown in Figure 2a) only one upper bearing section 5. The quick-release fastener according to Figure 3 has a U-shaped profile and, in contrast to the quick-release fastener according to Figure 1, has a lower bearing section 6 on each U-shaped side. Figure 4 shows a quick-release fastener 4 with an L-shaped profile and Figure 5 a similar quick-release fastener 4 with a T-shaped profile. The respective rear sides 9 of the quick-release fastener 4 of Figures 1 to 5 are intended for attachment to an element such as a guide rail. Figure 6 illustrates the quick-release fastener 4 according to Figure 1 in various positions in connection with a pair of grate bars 2 and 3 arranged parallel to each other. It can be clearly seen that the hook 7 of the upper support section 5 engages the grate bar 2 further than the hook 8 of the lower support section 6 engages the grate bar 3. This simplifies the attachment of the quick-release fastener 4 to a pair of grate bars 2 and 3, as the grate bars 2 and 3 only need to be compressed minimally to snap into place. Figure 7 illustrates a quick-release fastener according to the invention with an element 1 to be fastened, in this case a telescopic rail for the arrangement of a cooking support in an oven. Two quick-release fasteners 4 are arranged on the telescopic rail at a distance from each other as shown in Figure 1, whereby the quick-release fasteners 4 are designed in a mirror-like manner, so that their respective U-shaped sides, which have the lower support sections 6, face each other. This design is advantageous but not mandatory the same quick fastening elements could also be used to a rail. Figure 8 shows a side piece 10 similar to grilles, as it is used in common ovens for the insertion of cooking supports, with pairs of grate bars 2 and 3 arranged at a predefined distance, parallel to each other and essentially horizontally. Figure 8 also illustrates three fastening levels of a guide rail 1 with quick-release fasteners 4 as shown in Figure 6. In the upper representation of Figure 8, the guide rail 1 with the quick-release fasteners 4 is separated by a pair of grate bars 2 and 3. In the first fastening level, as shown in the center of Figure 8, the upper support sections 5 of the quick-release fastener 4 are hinged into the grate bar 2 of the grate bar pair. The guide rail 1 with the quick-release fasteners 4 is then moved and snapped into place with the lower support sections 6 in the direction of the lower grate bar 3. The final position is shown at the bottom of Figure 8.The snap-on coupling compresses the bars. This can be done in such a way that the bars can be compressed manually by service personnel. During attachment, the upper bar can be slightly bent by lifting it slightly and thus brought closer to the lower bar 3, so that the lower support section 5 can engage the lower bar 3. Furthermore, a chamfer can be provided on the hook-shaped section 8 of the lower support section 6, which, by pressing the lower support section 6 onto the lower bar 6, causes the bar 3 to be lifted slightly, so that the lower support section 6 can engage the support bar 3.

Claims

CLAIMS 1. Quick fastening system for fixing an element (1), in particular a guide rail, to grille bars (2, 3) arranged in pairs at a predetermined distance parallel to each other and in an essentially horizontal position, with an upper grille bar (2) and a lower grille bar (3), in particular grille bars of a lateral piece similar to grilles of an oven or other body, where at least one, preferably two of the upper and lower grate bars (2, 3) of a pair of grate bars is / are sufficiently elastic and the distance between the upper and lower grate bar by applying a force in the area between the end sections of the grate bars can be reduced and the elasticity of one or both grate bars forwards a restoring force in the direction of the original distance of the grate bars and, at least one quick-fixing element (4) is / are provided for the element (1), which has an upper support section (5), which partially engages an upper grate bar (2) of a pair of grate bars (2, 3) from above, and has a lower support section (6), which partially engages the corresponding lower grate bar (3) of the pair of grate bars (2, 3) from below, whereby a form-fitting and force-fitting connection is formed between the grate bars (2, 3) and the quick-fixing element (4), characterised in that the upper and lower support section (5, 6) of the quick-release fastener (4) are in a fixed relationship with respect to their vertical distance 2. Quick fastening system according to claim 1 characterised in that, on the element (1) there are expected distance two i 1 1 one element of fastening respect to the 1other. quick (4) to a 3. Quick fastening system according to one of claims 1 or 2, characterised in that a quick fastening element (4) has in the grate bars (2, 3) running horizontally to the fastening in vertical view from above a U-shaped or V-shaped profile, in which the two sides of the U-shaped or V-shaped profile protrude for fastening to the grate bars (2, 3) from the element (1) in the direction of the grate bars.

4. Quick fastening system according to one of claims 1 or 2, characterised in that a quick fastening element (4) has in the grate bars (2, 3) which run horizontally to the fastening in a vertical point of view from above an L-shaped or T-shaped profile, wherein one of the two sides of the L-shaped or T-shaped profile protrudes from the element (1) in the direction of the grate bars for fastening to the grate bars (2, 3).

5. Quick fastening system according to one of claims 3 or 4, characterised in that at least one side of the profile is formed and in the specific case cut by structuring an upper support section (5) and a lower support section (6) for fastening to the gate bars (2, 3). Quick fastening system according to one of claims 3 or 5, characterised in that the two sides of the U-shaped or V-shaped profile are formed and in the specific case cut by structuring an upper support section (5) and a lower support section (6) for fastening to the gate bars (2, 3). Quick fastening system according to one of claims 3 or 5, characterised in that one of the two sides of the U-shaped or V-shaped profile is formed and in the specific case cut by structuring an upper support section (5) and a lower support section (6) for fastening to the gate bars (2, 3) and the second side is formed and in the specific case cut only by structuring an upper support section (5) and no lower support section is provided. Quick fastening system according to one of claims 1 to 7, characterised in that the upper support section (5) of the fastening element (4) has a hook (7) which extends downwards in a vertical direction relative to the fastening to horizontally running grate bars (2, 3) for the attachment of a grate bar (2) and the lower support section (6) of the fastening element (4) has a hook (8) which extends upwards in a vertical direction relative to the fastening to horizontally running grate bars (2, 3) for the attachment of a grate bar (3), whereby the hook of the upper support section (5) is longer in the vertical direction than the hook of the lower support section (6).

9. Quick fastening system according to one of claims 1 to 8, characterised in that the quick fastening element (4) is made of a formed metal sheet or plastic.

10. Quick fastening system according to one of claims 1 to 9, characterised in that the quick fastening element (4) is fixed to the element (1) by welding, screwing, pressing or riveting.

11. Quick fastening system according to one of claims 1 to 10, characterised in that the element (1) is a guide rail, preferably a telescopic rail, particularly preferred, a telescopic rail for an insertion of cooking supports in an oven or a telescopic rail for an insertion of drawers or other extensions in a cupboard or shelf. Genoa, 3 October 2006 ECRETARY Dr. Rofrìan p. assignment: Attilio Porsia • Bruno Porsia • Dino Porsia Industrial Property Consultants ONERAL Blackbird 1