Side frame having a connecting fitting, and drawer having such a side frame
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- PAUL HETTICH GMBH & CO KG
- Filing Date
- 2025-12-15
- Publication Date
- 2026-06-25
Smart Images
Figure EP2025087051_25062026_PF_FP_ABST
Abstract
Description
[0001] Side frame with a connecting fitting and drawer with such a side frame
[0002] The invention relates to a side frame according to the preamble of claim 1 and a drawer.
[0003] For the state of the art, EP 3 993 666 B1 and DE 10 2007 011 037 A1 are mentioned.
[0004] German patent application DE 10 2007 011 037 A1 discloses a generic side panel for a drawer. This side panel comprises at least one wooden drawer side wall – hereinafter referred to synonymously as side panel – and a connecting fitting for preferably detachably connecting a front panel to the side panel. The connecting fitting is arranged in a recess in the wooden drawer side wall, the recess having a bottom closed towards the inside or outside of the drawer. To secure the connecting fitting for connecting the front panel to the side panel in the side panel, a support element is provided on the connecting fitting as a fastening device. This support element is held in the recess by frictional and / or positive locking, bearing against a wall surface of the recess.However, despite this type of accommodation of the connecting fitting in the side frame, it still cannot be completely ruled out that the material of the side frame may be damaged during operation by large or sudden impacts on the connecting fitting, which are introduced, for example, via the front panel.
[0005] The solution to this problem is the task of the invention.
[0006] The invention solves this problem through the subject matter of claim 1. Furthermore, the advantageous drawer of claim 20 is created.
[0007] According to claim 1, a side frame for a drawer is created, comprising at least one or more side frame elements made of a wood-based material, wherein a receiving space is formed in this one or these several side frame elements(s), into which at least one or more functional elements of a connecting fitting for attaching a front panel are inserted, wherein a load transfer in the sense of introducing forces acting on the connecting fitting from the one or the several functional elements into the one or the several side frame elements takes place directly and / or indirectly via one or more support means into one or more corresponding abutment surface(s) on the circumferential edge of the receiving space.According to the invention, the load transfer takes place at least partially or completely on at least one or more surface pairs, each consisting of one of the support surfaces on the one or more functional elements and / or on the support element on the one hand, and one of the corresponding abutment surfaces on the circumferential edge of the receiving space on the other, in a rear area of the receiving space facing away from the front panel, relative to an end of the side frame to which the front panel can be attached. The rear area of the receiving space is formed, in particular, by the rear 50% of the length of the receiving space in the extension direction X.
[0008] The side frame is made of a wood-based material, preferably entirely or at least partially of wood or a wood-containing material, for example, a solid wood panel, particleboard, or medium-density or high-density fiberboard. Side frames made of such materials are generally more sensitive to forces acting upon them than those made of sheet metal and are more easily damaged by such forces, particularly in areas close to the front panel. According to the invention, this problem is countered in a surprisingly simple way, since the load transfer takes place entirely or at least partially in an area of the side frame that is further away from the front panel, so that the force is introduced at a location where sufficient wood material is present to easily absorb these loads.
[0009] At least one pair of surfaces, consisting of a support surface and a corresponding abutment surface, is designed in such a way that there is virtually always contact between the side frame with the abutment surface and the support surface. This first pairing is positioned relatively far away, for example more than 5 cm, from the front panel in order to achieve a secure connection in a "central" area of the side frame located further away from the front panel.
[0010] The load to be transferred can be generated either by the weight of the front panel or, conversely, by forceful opening and loading of the drawer, particularly when pulling on the front panel. For example, high loads can occur due to leverage, especially when opening and closing very tall front panels (up to 900 mm) in heavy drawers (up to 70 kg). According to a preferred optional embodiment, it is advantageous to provide, in addition to the at least one surface pair consisting of a support surface and an abutment surface located in a rear region of the receiving space, at least one further surface pair consisting of a support surface and an abutment surface located in a front region of the receiving space.This distributes the load onto the wood across different points / areas of the side frame, further reducing the risk of damage. A particular advantage of this second surface pairing of support and abutment surfaces is the reduced risk of damage to the side frame under increased loads.
[0011] Alternatively or additionally, it may also be provided that, besides the at least one surface pairing consisting of one of the support surfaces and one of the abutment surfaces located in a rear area of the receiving space, at least one further surface pairing consisting of one of the support surfaces and one of the abutment surfaces is provided in the rear area of the receiving space. With regard to this design, the further reduced risk of damage to the side frame should also be emphasized.
[0012] In a preferred optional embodiment, it can further be advantageously provided that the functional assembly of the connecting fitting, which is inserted into the receiving space, comprises a retaining element of the connecting fitting that can be connected to a support element attachable to the front panel. This is because relatively high loads can occur on such retaining elements, for example, when the drawer is opened by pulling on the front panel.
[0013] According to a preferred optional embodiment, it can further be advantageously provided that, in the case of at least one front surface pairing consisting of one of the support surfaces and one of the abutment surfaces, in a state in which lower loads act on the connecting fitting, this support surface is spaced away from the corresponding abutment surface, for example by a few tenths of mm up to 2 mm, and remains spaced away, and that this support surface and the corresponding abutment surface only move towards each other and then come into positive engagement with each other in a state in which higher loads act on the connecting fitting.It is then very advantageous if, according to a further preferred optional embodiment, it is provided that in the case of at least one rear surface pairing consisting of one of the support surfaces and one of the abutment surfaces, these surfaces are in a form-fitting manner, i.e., directly adjacent to each other, both in a state in which the lower loads act on the connecting fitting and in the state in which the higher loads acting on the connecting fitting are in contact with each other.
[0014] It can be particularly advantageous for the side frame to have a front, spaced-apart surface pair consisting of one of the support surfaces and one of the abutment surfaces, and a rear, adjacent surface pair consisting of one of the support surfaces and one of the abutment surfaces. This ensures that, as a rule, lower loads are introduced in the rear area of the recess, where sufficient material is available to absorb the corresponding forces. Only in exceptional cases of high loads is a portion of the load additionally introduced into the side frame in an area further forward towards the front panel, thus advantageously distributing the loads across several areas of the side frame.
[0015] The invention can be implemented constructively in various types of side frames – whether high or rather low.
[0016] In a preferred optional embodiment, one or more, or even all, of the support elements may be made of plastic, zinc, aluminum, or metal. An important material property of the support element is a certain degree of intrinsic elasticity.
[0017] It is advantageous if the support element—for example, a support element made of plastic—has two or more support surfaces, and if a front support surface forms a surface pairing with one of the abutment surfaces according to claim 5, and a rear support surface forms a surface pairing with one of the abutment surfaces according to claim 6. This is advantageous if the support element(s) can elastically expand when high forces occur. Thus, at lower forces, the surface pairing of support surface and abutment surface in the rear region of the receiving space engages first, and then, at higher loads, due to the elastic expansion of the support element, the surfaces of the surface pairing of support surface and abutment surface in the front region of the receiving space also engage.
[0018] In a further preferred optional embodiment, it may be advantageous if one or more support means are designed as separate components, distinct from the connecting fitting. Advantageously, the one or more support means partially encircle the retaining element of the connecting fitting in the manner of an adapter and locally fix the retaining element of the connecting fitting in the recess.
[0019] It can then be provided that at least one of the support elements is arranged in a vertically upper region of the holding element, and that the support surfaces of this support element are also located in a vertically upper region of the receiving space, and that the corresponding abutment surfaces are located in the upper region of the receiving space. This is because high forces occur in the upper region of the side frame when loads are introduced via the front panel, and these forces can be effectively transferred into or out of the side frame via this adapter-like support element.
[0020] Additionally, another support element made of plastic, aluminum, zinc, or metal can fix and support the connecting fitting, in particular the retaining element, vertically at the bottom of the receiving space. This retaining element can be attached in the area of the drawer bottom.
[0021] Furthermore, according to a further preferred optional embodiment, it may be provided that in the at least one front surface pairing consisting of one of the support surfaces and one of the abutment surfaces, which is designed such that in a state in which lower loads act on the connecting fitting, this support surface is and remains spaced away from the corresponding abutment surface, the support surface and the corresponding abutment surface are aligned parallel or substantially parallel to the front panel.Furthermore, in a preferred embodiment, it may be provided that, in the at least one rear surface pairing consisting of one of the support surfaces and one of the abutment surfaces, which is designed such that these surfaces are aligned parallel or substantially parallel to the front panel both in a state where the lower loads act on the connecting fitting and in the state where the higher loads act. This type of alignment of a surface pairing consisting of a support surface and a corresponding abutment surface is very advantageous for force transmission into the side frame. In particular, one of the support surfaces and the corresponding abutment surface may also be oriented differently, for example horizontally or almost horizontally.
[0022] In a further preferred optional embodiment, at least one of the support surfaces may be formed on a sheet metal part of the connecting fitting, in particular the retaining element of the connecting fitting, so that during load transfer, a positive fit of this support surface to the abutment surface in the rear area of the receiving space is achieved. In this way, particularly with lower frames, the loads occurring on the front panel due to stresses can be effectively transferred, either partially or completely, into the side frame made of wood-based material.
[0023] In a further preferred optional embodiment, the side frame can be divided and comprise an outer shell and an inner shell as side frame elements, with one or both of these side frame elements being made of the wood-based material. The inner shell and the outer shell can be approximately the same thickness (perpendicular to their main surfaces) or of different thicknesses. For example, the outer shell can also be very thin, acting as a kind of cover. In this case, this thin outer shell can preferably be made of metal or aluminum, while the inner shell is thicker, has the receiving space as a lateral recess, and is made of the wood-based material. A reverse arrangement is also conceivable.
[0024] The wooden side frame is constructed from two parts, with the fitting projecting into both. Alternatively, a single wooden part could be used as the side frame (for example, just an outer or inner shell) with a recessed pocket that almost completely accommodates the connecting fitting. For instance, such an inner shell could be created with a finishing / outer surface made of, for example, aluminum, wood, or metal. The force is then transferred via the wooden side frame element.
[0025] Additional support at the base can be provided by at least one flap attached to the drawer front and a support element attached to it, acting as an adapter to further increase the support surface. This is particularly advantageous if the drawer is pushed in with force. Additionally, a pivot point for the drawer front is created or, if necessary, reinforced.
[0026] In a further preferred optional embodiment, it may also be advantageously provided that the receiving space is formed from two wholly or substantially corresponding recesses in the inner shell and the outer shell.
[0027] Furthermore, according to a further preferred optional embodiment, at least one or more of the abutment surfaces may have sections in both recesses. According to another preferred embodiment, it is also conceivable that the receiving space is formed from only one or more recesses in the inner or outer shell. It is also an advantage of the invention that it can be implemented in a wide variety of ways.
[0028] Furthermore, a drawer with two side panels according to one or more of the related claims, and with a base, a back panel, and a front panel, is created. The aforementioned advantages are also realized in this drawer, depending on the design of the side panels.
[0029] Advantageous embodiments can be found in the dependent claims.
[0030] For a taller version, it is advantageous to have two surface pairs on the upper support element. For a shorter version, the first support surface can be on the connecting fitting and the second support surface on the support element.
[0031] It should be noted that in further preferred embodiments, one or more additional recesses may be formed in the inner and / or outer shell at the end region facing the rear wall, forming a further receiving space. In such cases, open-ended insert elements may be placed in these recesses. These insert elements stabilize the circumferential edge of the recesses. Preferably, these insert elements are made of plastic, aluminum, zinc, or metal. They may have an opening towards the rear wall, and these insert elements are preferably designed to be sufficiently robust to allow one or more functional elements of a connecting fitting for attaching the rear wall to the side frame to engage in them. The insert elements also effectively prevent damage to the edges of these recesses.
[0032] The invention will now be described in more detail with reference to exemplary embodiments and the drawings. The invention is not limited to these exemplary embodiments, but can also be implemented in other ways not shown. It is also not necessary to implement all of the features shown in combination in order to realize the invention. Furthermore, one or more of the features shown below can also be combined differently than shown and explained below. The drawings show:
[0033] Fig. 1 is a perspective isometric view of a drawer without a front panel; Fig. 2 is a perspective schematic view of a front panel;
[0034] Fig. 3 shows a perspective exploded view of a first side frame according to the invention for the drawer from Fig. 1 and of functional elements that can be arranged on it;
[0035] Fig. 4 shows a perspective view of an outer shell of the left side frame from Fig. 3 with functional elements arranged on it;
[0036] Figs. 5a-d: Fig. 5a shows a side view of the outer shell from Fig. 4 with support elements mounted on it; Fig. 5b shows a close-up of a first area from Fig. 5a; and Figs. 5c and 5d show a close-up of a second area from Fig. 5a under different load conditions;
[0037] Fig. 6a-b in Fig. 6a and 6b each show different perspective views of the outer shell of the side frame from Fig. 3;
[0038] Fig. 7a-b in Fig. 7a and 7b each show different perspective views of an inner shell of the side frame from Fig. 3;
[0039] Figs. 8a-f show different views of a support means according to the embodiment of Fig. 3;
[0040] Fig. 9 shows a perspective exploded view of a further side frame according to the invention for a drawer and of functional elements that can be arranged on it;
[0041] Figs. 10a-d show different perspective views of an outer shell of the side frame from Fig. 9, and Figs. 10c and 10d show different perspective views of an inner shell of the side frame from Fig. 9;
[0042] Fig. 11 a in Fig. 11 a is a side view of the outer shell from Fig. 10 a, b with support elements mounted on it; in Fig. 11 b is a close-up of a first area from Fig. 11 a; and in Figs. 11 c and 11 d are close-ups of a second area from Fig. 11 a under different load conditions; and
[0043] Figs. 12a-f in Figs. 12a - 12f each show different views of a vertically upper support element according to the embodiment of Fig. 9.
[0044] Fig. 1 shows a perspective view of a drawer 1 having two side panels 2. At least one exemplary side panel 2 according to the invention is provided on a drawer 1 according to the invention. The drawer 1 also has a base 3, which connects the two side panels 2 in the lower region of the drawer 1. The drawer 1 can also have a back panel 4 and a front panel 5, which is shown schematically separately in Fig. 2. The drawer 1 can thus be closed at the bottom and open at the top. The drawer 1 is generally inserted into a furniture carcass (not shown here), from which it can usually be inserted and removed by means of at least one drawer slide.
[0045] A coordinate system X, Y, Z serves for orientation. In Fig. 1, the X direction corresponds to the extension direction of the drawer 1. The side panels 2 are parallel to each other and parallel to the X / Z plane, and the front panel 5 and the back panel 4 are parallel to the Y / Z plane. The usual operating position is one in which the base 3 is essentially horizontal and the drawer 1 can also be extended essentially horizontally from the cabinet. The coordinate system transforms accordingly when rotating the unit in space.
[0046] Figure 3 shows one of the two side frames 2 of the drawer 1, which are aligned parallel to each other. The construction of these side frames 2 is identical. They can be mirrored with respect to a central plane (X / Z plane) between them.
[0047] The two side frames 2 each have two main side walls, an inner wall and an outer wall. These extend parallel to the X / Z plane. The side frames 2 also each have several narrow sides, one of which faces the front panel. It extends in the Y / Z plane.
[0048] Only one of the two side frames 2 is described below, but these statements apply to both side frames 2.
[0049] The side frame 2 has at least one or more side frame elements, which are / are made of a wood-based material. According to the illustrated embodiments, the side frame 2 is designed in two parts, and the side frame elements have an outer shell 22 and preferably also an inner shell 21. The dividing plane between the inner shell 21 and the outer shell 22 runs essentially parallel to the X / Z plane. Thus, in Fig. 3, the inner wall and a first part of the narrow side 2s are formed by the inner shell 21, and the outer wall and a second part of the narrow side 2s are formed by the outer shell 22 (see, for example, Figs. 3, 7a, b, and 8a, b). The inner shell 21 and the outer shell 22 can be connected to each other, for example, by gluing and / or fastening and / or by positive locking elements and / or other fastening elements.They can be of equal thickness perpendicular to their main sides, or they can be of different thicknesses.
[0050] The inner shell 21 can have a receiving channel 211 for receiving an edge of the base 3.
[0051] The side frame 2 – here the inner shell 21 and / or the outer shell 22 – is preferably made entirely or at least partially of a wood-based material, i.e., in particular of wood or a wood-containing material. Thus, for example, solid wood panels, particleboard, medium-density fiberboard, high-density fiberboard, or the like can be used. Side frames 2 made of wood-based materials generally react more sensitively to forces acting upon them than those made of sheet metal and are more easily damaged by such forces, especially in areas close to the front panel 5. According to the invention, this problem is countered in a surprisingly simple way.
[0052] A connecting fitting 6, which forms a mounting device (see also Fig. 3 in particular) and can, for example, have two essential functional units, serves to mount the front panel 5 to the respective side frame 2. These functional units comprise a holding element 61 and a support element 62 designed to interact with the holding element 61. The holding element 61 can be located on the side of the side frame 2. The support element 62, on the other hand, can be mounted on the front panel 5 on its surface facing the narrow side 2s of the side frame 2. It can have a housing 621, which can be made of sheet metal. The support element 62 can also be referred to synonymously as a front panel adapter. The support element 62 can, for example, be joined to the holding element 61, for example, by snapping it together. This is known per se and is therefore not described in detail here.The support element 62 can be fixed in the front panel 5, for example, with fastening elements such as pins 622 (see Fig. 1), which can engage in bores (not shown here).
[0053] The fitting – here the connecting fitting 6 – can be inserted wholly or partially into a receiving space A of the side frame 2. There, it is supported – preferably in a manner to be described in more detail below – by one or more adapter-like support elements 7, 8, 8', so that forces acting on it are essentially transferred into the side frame 2 via this one or more support elements 7, 8, 8', 9 (see first Figs. 3 and 10). Fig. 3 shows a side frame 2 that is significantly higher in the vertical direction Z than the one in Fig. 9. The design of the support elements in Fig. 3 (see in particular reference numeral 8) is therefore particularly suitable for higher side frames 2 compared to the design of the support elements in Fig. 9 (7, 8', 9).
[0054] The retaining element 61 is provided on the side of the side frame 2. It can be inserted and mounted in a receiving space A in an area of the side frame 2 facing the front panel 5. The receiving space A can be open on the narrow side 2s so that the retaining element 61 and the support element 62 can be snapped together. The receiving space A can also serve to receive a section of the support element 62 projecting from the front panel 5 (see Fig. 1), so that only the pins 622 protrude from the side frame 2. However, when the front panel 5 is mounted on the drawer 1, these pins engage in the front panel 5 and are therefore no longer visible.
[0055] This receiving space A is formed here by two recesses A21 and A22 in the inner shell 21 and the outer shell 22, which correspond completely or substantially (see especially Figs. 6a, b and 7a, b, 10a-d). When the inner shell 21 and the outer shell 22 are assembled, these recesses lie completely or substantially congruently with their open sides against each other, thus jointly forming the receiving space A. In the case of a one-piece side frame, the receiving space A could also be formed by a single, correspondingly deeper recess (not shown), which could then be open laterally in direction y or be closed there with a cover, a film, or the like (neither of which are shown here).
[0056] The recesses A21 and A22 can, at least partially, but preferably, have essentially or exactly congruent edge contours. This is particularly evident from a visual comparison of Figures 6a, b and 7a, b. The recesses A21, A22 do not need to have the same depth everywhere (relative to direction Y). Thus, one or more rib-like webs 212, 222, as areas of shallower depth, can stiffen the side frame 2 in the area of the recesses A21, A22, if the design of the fitting to be received, here the retaining element 61, permits this (Figures 6a, b; 7a, b).
[0057] The recesses A21 and A22 are each open over a larger area towards the narrow side 2s and are closed at the top, bottom, and rear, so that they are preferably only visible on the narrow side 2s when the side frame 2 is installed. Optionally, an opening 213, which can be closed by a cover 214, may be provided on the inner shell 21, allowing access to the fitting 6 in the receiving space A, for example, to remove the front panel 5. The cover 214 may be magnetic, in which case it is held in place at the opening 213 by the retaining element 61.
[0058] In the upper and lower edge regions of the recesses A21, A22, corresponding receiving contours, e.g., in the form of edge recesses or indentations, can be formed for one or more of the support elements 7, 8, 8', 9. These support elements 7, 8, 8' and 9 serve in particular to support the fitting, here the connecting fitting 6, or in particular the retaining element 61 of the connecting fitting 6 on the side frame 2. Forces introduced via the front panel 5 into the retaining element 61 are transmitted to the side frame 2 via these support elements 7, 8 (Fig. 3) or 7, 8, 8', 9 (Fig. 9).
[0059] The support elements 7, 8, 8' and, if applicable, 9 can be designed as separate elements from the fitting, here the retaining element 61. However, one or more of the support elements 9 can also be integrally formed with the fitting, here with the retaining element 61.
[0060] It can therefore be provided that at least one support element 7, 8, 8' and, if applicable, 9 is designed as a separate component(s) distinct from the connecting fitting 6. Advantageously, the one or more support elements 7, 8, 8' and, if applicable, 9 partially encircle the retaining element 61 of the connecting fitting 6 in the manner of an adapter and locally fix the retaining element 61 of the connecting fitting 6 in the recess.
[0061] According to the embodiment shown in Figures 3 to 8f, both (or here all) support means 7, 8 are designed as separate elements from the fitting, here the retaining means 61. The support means 7, 8 can then have retaining contours such as openings or projections or the like, which interact with the fitting, here with the retaining means 61, and / or with the inner shell 21 and / or the outer shell 22 in such a way that, when inserted into the respective side frame 2, they can fix and securely hold the retaining means 61 in the side frame 2 (see, for example, Figure 4a), possibly also perpendicular to the main sides of the inner shell 21 and the outer shell 22.
[0062] According to the embodiment shown in Figures 9 to 12, two of the support elements – the support elements 7, 8' – are again designed as separate elements from the fitting, here the retaining element 61, and one of the support elements 9 is integrally formed with the fitting, here with the retaining element 61. According to Figures 9 to 12, this additional support element 9 is formed by a sheet metal element, which also serves to support a functional element, here a spring 611, of the retaining element 61. The retaining element 61 can, in particular, comprise one or more sheet metal plates, the spring 611, and one or more hooks (not shown in detail here) in order to attach it to the support element 62, e.g., to a pin or the like.
[0063] Each of the support means 7, 8, 8', 9 can have at least one or more support surfaces 71, 72, 81, 82, 91 (see Fig. 5a-d or Fig. 11ad). These support surfaces 71, 72, 81, 82, 91 serve to transmit forces into a corresponding abutment surface W71, W72, W81, W82, W91 of the side frame 2.
[0064] It is preferably provided that at least two of the total surface pairings of support surfaces and abutment surfaces 81, W81 (and / or 82, W82, Figs. 3 to 8) or 91, W91 (Figs. 9 to 11) on the one hand and 83, W83 (on the other hand) provided on the side frame 2 have different distances to each other, in an unloaded state in which, apart from the weight force of the front panel 5, no or only a small additional force is introduced via the front panel 5 via the connecting fitting 6 into the side frame 2 here with the inner shell 21 and the outer shell 22, in an unloaded state in which no or only a small additional force is introduced via the front panel 5 via the connecting fitting 6 into the side frame 2 here with the inner shell 21 and the outer shell 22.
[0065] It can be provided, in particular, that, with respect to the extension direction X, a rear surface pairing located further away from the front panel 5, consisting of a support surface 81 and a buttress surface W81 (and / or 82, W82 or 91, W91), has a smaller, possibly even zero, distance to each other in the unloaded state than a surface pairing located closer to the front panel 5, consisting of a support surface 83 and a corresponding buttress surface W83 (see Fig. 5b, c, d). The same applies to the embodiment shown in Figs. 9 to 12 (see Fig. 11a to d) for the surface pairing 91, W91 and the further surface pairing 83, W83. The rear region of the receiving chamber A is formed, in particular, by the rear 50% of the length of the receiving chamber A with respect to the extension direction X.
[0066] These distances between the support surfaces and the corresponding abutment surfaces are preferably dimensioned such that, with a smaller force acting on the front panel 5 (which may in particular be a tensile force introduced into the front panel 5 at its upper edge region), one or more surface pairings (or pairs) located further away from the front panel 5 (in the direction -X), consisting of a support surface 81 and an abutment surface W81 (and / or 82, W82 or 91, W91), are already in direct, force-transmitting contact with each other, whereas only when a higher force is introduced do the surface pairing 83 and W83 located closer to the front panel 5 also come into force-transmitting contact with each other. The support surface 83, however, is separated from the corresponding abutment surface W83 in the unloaded state.even in a state of lower load, they are spaced apart by a distance D, for example by a few tenths of mm up to 2 mm (compare Fig. 7c and 7d).
[0067] This is surprisingly advantageous because the force transmission from the front panel 5 via the fitting, here the connecting fitting 6 with the retaining element 61, into the side frame 2 – here into the inner shell 21 and the outer shell 22 – occurs, or at least initially occurs, only in an area of the side frame 2 further away from the front panel 5 than is usually the case. Thus, particularly with a wood-based panel used as the side frame 2, it is avoided that the frame is subjected to excessive stress and potentially damaged in an area close to the front panel 5, where the outer shell 22 and / or the inner shell 21 may have relatively thin sections into which the loads are transferred. The risk of such damage is greater with wood-based panel frames than with metal frames, which can be made of relatively stable metal sheets.
[0068] Thus, smaller tensile forces acting on the front panel 5, particularly in its upper region (hereinafter also referred to simply as acting forces), are initially transferred via the surface pair located further away from the front panel 5, consisting of the support surface 82, W82 and / or 81, W81. Alternatively, it can also be provided that acting forces are always introduced simultaneously via the more distant surface pair (e.g., 81, W81) and the closer surface pair (e.g., 83, W83) (such a configuration is not shown here). The advantage of this is that the surface pair closer to the front panel, consisting of support surface 83 and abutment surface W83, is then at least relieved of some of the load, as it only has to absorb a portion of the forces.
[0069] It may be provided that at least the surface pairing of a respective support surface and a respective abutment surface 83, W83, which is further apart in an unloaded state than in a more heavily loaded state, is formed on a vertically higher-lying support element 8 (see Fig. 5a-d).
[0070] It may further be provided that at least the two surface pairings of support surface and abutment surface 81, W81 or 83, W83, in which the respective support surface 81, 83 and the respective abutment surface W81 or W83 lie against each other in an unloaded state at one of the surface pairings and lie further apart at one of the surface pairings than in a more heavily loaded state, are formed on a common or the same support element, in particular an upper support element 8.
[0071] It can further be provided that at least the two surface pairs consisting of support surface and abutment surface 81, W81 or 83, W83, in which the respective support surface 81, 83 and the respective abutment surface W81 or W83 are in contact at one of the surface pairs in an unloaded state and are further apart at one of the surface pairs than in a more heavily loaded state, are located on a common or the same support element 8 with respect to the pull-out direction X in a rear region of the retaining element 61 or behind the retaining element 61 and in the front region of the retaining element 61 or in front of the retaining element 61. The distance between the surface pairs 81, W81 and 83, W83 is then advantageously greater than 5 cm, and in particular greater than 8 cm, for typical frames.
[0072] It may also be preferably provided that at least the vertically upper support element 8 is made of plastic, zinc, aluminum, or metal. An important material property of the support element is a certain intrinsic elasticity. This support element 8 can be dimensioned and designed such that it can elastically expand as a result of increased force acting on the front panel 5 until, even in the area of the surface pairing of support surface 83 and abutment surface W83 located closer to the front panel 5, these two surfaces 83, W83 come into positive contact, so that forces are also introduced into the side frame 2 in the area of this surface pairing of surfaces 83, W83.
[0073] The upper support element 8 can, for example, have an LI shape, with a relatively long base leg 84 and two short transverse legs 85, 86 (see Figs. 8a to 8f). The support surfaces 81, 82 and 83 can then advantageously be formed on the transverse legs 85, 86. Corresponding edge areas can then be formed in the region of the recesses A21 and / or A22 as the respective abutment surfaces W81, W82, W83. The base leg 84 can be straight (not shown here). However, it can also have two sections 841, 842 extending at an obtuse angle to each other. This means that only in the area of the rear section 842 of the base leg 84 can the further support surface 82 be formed on its upper side, which can be supported on an inner edge of the recesses A21 and / or A22 as a buttress surface W82 (see in particular Fig. 5a-d and 6a-d).The upper support element 8 has a slot 87 with which the support element forms a positive and / or force-fit connection with the retaining element 61. This simplifies the joint assembly of the retaining element 61 and the support element 8. In this embodiment, the slot 87 is formed in the vertical direction and parallel to the XZ plane in the area of section 841. Here, the slot 87 is continuous; however, a downwardly open groove could also be provided to place the support element 8 onto the retaining element 61 and enclose it on three sides.
[0074] Forces can be introduced into the side frame 2 via the support elements 7, 8, 8', 9 into either the inner shell 21 or the outer shell 22, provided that the corresponding abutment surfaces are formed on both the inner shell 21 and the outer shell 22. This is the case in the illustrated embodiments. This is advantageous because the forces are distributed evenly and introduced into the side frame 2. Alternatively, the force can be introduced into only one of the two shells (inner shell 21 or outer shell 22) (not shown).
[0075] In the embodiment shown in Figs. 9 to 12, it can be provided that the rear surface pairing consisting of support surface 91 and abutment surface W91 is formed on one side on a sheet of the fitting, here the retaining element 61, and on the other side in the area of the recess A21, A22.
[0076] One, several, or all of these support elements 7, 8' can be made of a plastic material – for example, using an injection molding process. However, it is also conceivable that one or more of the support elements – see support element 9 in Figs. 11 a) to 11 e) – are not made of plastic, but of another material such as metal. Other possible materials include plastic, zinc, or aluminum. An advantageous material property of the support element is a certain degree of intrinsic elasticity.
[0077] The support element 9, shown in Figures 9 to 12, is part of one of the functional elements of the fitting, specifically the retaining element 61. This sheet metal serves a dual purpose: in addition to supporting the spring 611, it also provides support on the actual side frame 2. A section of the sheet metal, acting as support element 9, then serves as the support surface 91. This support surface 91 rests against a respective abutment surface W91 of the recess(s) A21 and / or A22. In a less loaded state, these surfaces lie directly against each other and, at least in this state, are closer together than support surface 83 and abutment surface W83 on a vertically superior support element 8' made of plastic (Figure 12), which is located closer to the front panel 5. This support element 8' can then be designed to be relatively compact, as it has only a single support surface 83.The latter support surface 83 and the associated abutment surface W83 preferably only come into contact at higher forces than surfaces 91 and W91. In this embodiment, the support element 8' has an L-shape. Furthermore, the support element 8' has a slot 87 to create a positive and / or force-fit connection with the retaining element 61.
[0078] The vertically (with respect to direction Z) lower support element 7 can, for example, be essentially designed in the form of an elongated cuboid (see Fig. 3 and Fig. 9). An optional lateral, tenon-like positive locking element 74 can be formed on this cuboid lower support element 7. This can engage in a corresponding opening in the inner shell 21 or the outer shell 22. This positive locking element 74 can act as a support for the lateral adjustment of the frame.
[0079] The lower support element 7 is placed laterally onto projections in the lower area of the retaining element 61. A positive and / or force-fit connection can be used for this purpose.
[0080] The lower, cuboid-shaped support element 7 is positively inserted into a lower edge recess in the recess A21, A22 (see Figs. 3 and 4, and 7 and 8). It then rests there essentially downwards (with respect to the Z-direction) and forwards (with respect to the X-direction). Its underside, forming a support surface 72, rests downwards on the corresponding lower edge of the abutment surface W72 of the lower edge recess. Additionally, the lower, cuboid-shaped support element 7 rests in the lower edge recess of the recess in such a way that, under tensile stress from the front panel 5, the circumferential edge facing the narrow side 2s can act as a support surface 71 against a circumferential edge of the receptacle A21, A22, also facing the narrow side 2s, forming an abutment surface W71. Thus, the lower support element 7 is subjected to any necessary tensile forces.Acting loads, especially pressure loads on the front panel 5, are easily transferred to the side frame 2.
[0081] The upper support element(s) 8 (or possibly 8') and the support element 9 (if applicable) serve primarily to transfer tensile loads that are transmitted through the front panel 5 in its upper area to the side frame 2 by tension (in direction X). The support element(s) 7, 8 may also have one or more projections that can engage in corresponding recesses of the connecting fitting 6 and / or the inner shell 21 and / or the outer shell 22 to easily ensure a secure fit of these elements in the side frame 2.
[0082] It should also be noted that one or more further recesses 10, 11 may be formed in the inner shell 21 and / or the outer shell 22 at the end area facing the rear wall 4, forming an additional receiving space. It may then be provided that non-enclosed insert elements 12 are placed in the recesses 10, 11. These insert elements 12 stabilize the circumferential edge of the recesses 10, 11. Optionally, these insert elements 12 are made of plastic, aluminum, zinc, or metal. They may have an opening 121 towards the rear wall 4, and these insert elements 12 are designed to be stable enough to allow one or more functional elements of a connecting fitting for attaching the rear wall 4 to the side frame 2 to engage in them (not shown here). The insert elements 12 also effectively prevent damage to the edges of these recesses 10, 11.
[0083] Reference sign
[0084] Drawer 1
[0085] Side frame 2
[0086] narrow side 2s
[0087] Inner shell 21
[0088] Recording channel 211
[0089] Pier 212
[0090] Opening 213
[0091] Cover 214
[0092] Outer shell 22
[0093] Pier 222
[0094] Floor 3
[0095] Back panel 4
[0096] Front panel 5
[0097] Connecting fitting 6
[0098] Holding device 61
[0099] Spring 611
[0100] Carrying medium 62
[0101] Case 621
[0102] Cone 622
[0103] Supports 7, 8, 8', 9
[0104] Support surfaces 71, 72, 81, 82, 83, 91
[0105] Abutment surfaces W71, W72, W81, W82, W83, W91
[0106] Molded shot element 74
[0107] Base leg 84
[0108] Sections 841, 842
[0109] transverse leg 85, 86
[0110] Slot 87
[0111] Depths 10, 11
[0112] Insert elements 12 Opening 121 Receiving space A
[0113] Recesses A21, A22 Coordinate system X, Y, Z Distance D
Claims
Claims 1. Side frame (2) for a drawer, comprising at least one or more side frame elements, which is or are made of a wood-based material, wherein a receiving space (A) is formed in this one or these several side frame elements(s), in which at least one or more functional elements of a connecting fitting (6) for attaching a front panel (5) is inserted.are, wherein a load transfer in the sense of an introduction of forces acting on the connecting fitting (6) from the one or more functional elements of the connecting fitting (6) into the one or more side frame elements directly and / or indirectly via one or more support means (7, 8, 8', 9) into one or more corresponding abutment surface(s) (W71 , W72, W81 , W82, W83, W91 ) at the circumferential edge of the receiving space (A) takes place, characterized in that the load transfer is at least partially or completely on at least one surface pairing or on several surface pairings, each consisting of one of the support surfaces (71 , 72, 81 , 82, 83, 91 ) on the one or more support elements (7, 8, 8', 9) on the one hand and one of the corresponding abutment surfaces (W71 , W72, W81 , W82, W83, W91 ) on the perimeter of the recording space (A) on the other hand is formed orare in a rear area of the recording space (A) facing away from the front panel (5) with respect to an end of the side frame (2) to which the front panel (5) can be attached.
2. Side frame according to claim 1, characterized in that, in addition to the at least one surface pairing of one of the support surfaces and one of the abutment surfaces (81, 82, 91; W81, W82, W91) which is provided in a rear area of the receiving space (A), at least one further surface pairing of one of the support surfaces and one of the abutment surfaces (83, W83) is provided in a front area of the receiving space (A).
3. Side frame according to claim 1 or 2, characterized in that, in addition to the at least one surface pairing of one of the support surfaces and one of the abutment surfaces (81 , 82, 91 ; W81 , W82, W91 ) which is provided in a rear area of the receiving space (A ), at least one further surface pairing of one of the support surfaces and one of the abutment surfaces (83, W83 ) is provided in a rear area of the receiving space (A ).
4. Side frame according to claim 1, 2 or 3, characterized in that the functional assembly of the connecting fitting (6), which is inserted into the receiving space (A), comprises a retaining means (61) of the connecting fitting (6) which can be connected to a support means (62) which can be attached to the front panel (5).
5. Side frame according to one of the preceding claims, characterized in that, in the case of at least one front surface pairing consisting of one of the support surfaces and one of the abutment surfaces (83, W83), in a state in which lower loads act on the connecting fitting (6), this support surface (83) is and remains spaced apart from the corresponding abutment surface (W83) - distance (D) - and that this support surface and the corresponding abutment surface (83, W83) only come into positive engagement with each other in a state in which higher loads act on the connecting fitting (6).
6. Side frame according to one of the preceding claims, characterized in that in the at least one rear surface pairing consisting of one of the support surfaces (81 , 82, 91 ) and one of the abutment surfaces (W81 , W82, W91 ) these surfaces are positively engaged both in a state in which the lower loads act on the connecting fitting (6) and in the state in which the higher loads acting on the connecting fitting (6) are in contact with each other.
7. Side frame according to one of the preceding claims, characterized in that it has a front surface pairing of one of the support surfaces (83) and one of the abutment surfaces (W83) according to claim 5 and a rear surface pairing of one of the support surfaces (81 , 82, 91 ) and one of the abutment surfaces (W81 , W82, W91 ) according to claim 6.
8. Side frame according to one of the preceding claims, characterized in that one or more of the support means (7, 8, 8') is / are designed as a separate element.
9. Side frame according to claim 8, characterized in that two or more support surfaces are formed on one of the support means (7, 8, 8') and that a front support surface (83) forms a surface pairing according to claim 5 with one of the abutment surfaces (W83) and a rear support surface forms a surface pairing according to claim 6 with one of the abutment surfaces (W81, W82).
10. Side frame according to one of the preceding claims, characterized in that one or more of the support means (7, 8, 8') sectionally encompass the retaining means (61 ) of the connecting fitting (6) in the manner of an adapter and locally fix it in the receiving space (A).
11. Side frame according to one of the preceding claims, characterized in that at least one of the support means (8) is arranged in a vertically upper region of the retaining means (61), wherein the support surfaces (81 , 82, 83) of this support means (8) are also located in a vertically upper region of the receiving space (A) and the corresponding abutment surfaces (W81 , W82, W83) are also located in this upper region of the receiving space (A).
12. Side frame according to one of the preceding claims, characterized in that a further support means (7) fixes and supports the connecting fitting (6), in particular the retaining means (61), vertically below in the receiving space (A).
13. Side frame according to one of the preceding claims, characterized in that in the at least one front surface pairing consisting of one of the support surfaces and one of the abutment surfaces (83, W83), which is designed such that in a state in which lower loads act on the connecting fitting (6), this support surface (83) is and remains spaced away from the corresponding abutment surface (W83), this support surface and the corresponding abutment surface are aligned parallel or substantially parallel to the front panel (5).
14. Side frame according to one of the preceding claims, characterized in that in the at least one rear surface pairing consisting of one of the support surfaces (81 , 91 ) and one of the abutment surfaces (W81 , W91 ), which is designed such that these surfaces are aligned parallel or substantially parallel to the front panel (5) both in a state in which the lower loads act on the connecting fitting and in the state in which the higher loads 15. Side frame according to one of the preceding claims, characterized in that at least one of the support surfaces (91) is formed on a sheet (9) of the connecting fitting (6), in particular the retaining means (61) of the connecting fitting (6), so that during the Load transfer is achieved by a positive connection of this support surface (91) with the abutment surface (W91) in the rear area of the receiving space (A).
16. Side frame according to one of the preceding claims, characterized in that the side frame (2) is divided and has an outer shell (22) and an inner shell (21) as side frame elements, wherein one or both of these side frame elements are made of the wood-based material.
17. Side frame according to one of the preceding claims, characterized in that the receiving space (A) is formed from two wholly or substantially corresponding recesses (A21 , A22) in the inner shell (21 ) and the outer shell (22).
18. Side frame according to one of the preceding claims, characterized in that at least one or more of the abutment surfaces (W81 , W82, W83, W91 ) has sections in both recesses (A21 , A22).
19. Side frame according to one of the preceding claims, characterized in that the receiving space (A) is formed from only one or more recesses (A21 , A22) in the inner shell (21 ) or the outer shell (22).
20. Drawer with two side panels according to one or more of the preceding claims and with a bottom (3), a back panel (4) and a front panel (5).