Drawer assemblage

were:

DE-0S1936088 FR-PS1597045

- 2 No. 355756

The invention relates to a drawer, which is injected in one piece from plastic, and in which at least the sides are double-walled and the space between the double walls of the sides accessible from below, stiffened with transverse ribs and at the bottom with a

Insert bar is provided, which has on its underside the guide track for rollers and the

Front of the drawer is provided with brackets for attaching a front panel.

Such, one-piece drawers have proven to be very useful in various ways, they are finished after production and no longer require assembly. In particular, for kitchens, for furniture used in the medical field, etc., they have proved to be very useful, since they are easy to keep clean and also because of their manufacturing process at corners and edges have rounded areas in which dirt is not can fix.

However, previously known, such drawers have various disadvantages. Since these drawers must have uniform wall thicknesses for various, in particular manufacturing reasons, and the wall thicknesses can not be very strong, even with a construction that takes these circumstances into account, for example, the torsional stiffness and generally the dimensional stability are not sufficient and leave something to be desired. There are already drawers have become known in which the guides have been specially designed and in particular have been stiffened with transverse ribs. Of course, you have the stiffening, especially the side walls, doubled by pulling them down from the top edge in the form of an apron, and stiffening ribs have already been formed in the gap created thereby. There are also other drawer constructions known in which the space between the double walls of the sides is covered downwards. This cover has also been made in known drawers by means of the separately mounted guide bar, for example with the part to be attached to the drawer of the drawer guide, the opposite part is firmly connected to the furniture body.

For technical reasons, the freedom of construction is limited in one-piece drawers. Even the doubling of the side walls and the arrangement of ribs and the like. requires relatively expensive molds. This effort are also limits, u.zw. not only by the fact that multi-part molds are difficult to manufacture and difficult to control, but also by the fact that Hintersehneidungen can be dargesteüt under no circumstances, and the fact that the cost of the molds and the complexity caused by sensitivity increases too much.

Another disadvantage of known constructions of one-piece plastic drawers is that they are prone to mechanical shocks; the widely stretched bottom of the drawer acts as a kind of membrane; even if the side walls are effectively reinforced by doubling and even if ribs are arranged between them, a "sounding" of such drawers can not be avoided.

In one-piece manufactured plastic drawers there is still the difficulty, herzusteüen a sufficiently strong connection of the drawer to the front panel to which the handle is attached and which is invisible. The usual connection of the drawer body with molded dowel pins, which are mounted in corresponding DübeUöchern the front panel, has not always proven to be durable. Therefore, other fasteners have been used, for example by screws, which were screwed from the inside through the side wall of the drawer in the front panel. These fasteners are visible and not only disturb visually, but the screw heads lying on the front inner wall of the drawer are easily soiled and difficult to keep clean. In drawers with so-called Voüauszug or double drawer, it is known to extend the lateral guide rails on the rear wall of the drawer addition something or to extend their support, so that even vo vo pulled-drawer, so if the rear wall of the drawer approximately in a plane with the remaining front wall of the furniture body is still a secure hold for the drawer is given. However, it has been shown in known drawer constructions Nachteü that at the requisite extended drawer slides both in the retracted state of the drawer as well as in the voüständig extended position of the drawer a so that even with voü pulled-drawer, so if the rear wall of the drawer is approximately in a plane with the rest of the front wall of the furniture body, still a secure hold for the drawer is given. However, it has been shown in known drawer constructions Nachteü that at the requisite extended drawer slides both in the retracted state of the drawer as well as in the voüständig extended position of the drawer a so that even with voü pulled-drawer, so if the rear wall of the drawer is approximately in a plane with the rest of the front wall of the furniture body, still a secure hold for the drawer is given. However, it has been shown in known drawer constructions Nachteü that at the requisite extended drawer slides both in the retracted state of the drawer as well as in the voüständig extended position of the drawer a

- 3 no. 355756 lateral movement, a "slagging" of the drawer is unavoidable due to the movement between the two opposing parts of the drawer slides.

The object of the present invention has been made to avoid the mentioned Nachteüe known one-piece drawers and to create a drawer made of plastic whose strength and stability compared to the known drawers is considerably improved, in which the front panel is invisible to attach and in fully extended Condition does not allow a lateral movement in their guides.

To solve this problem, a drawer of the generic type is characterized in that ribs are used in the smooth-surfaced without transverse ribs between the double walls of the sides ribs having longitudinally offset fields which rest alternately on the inner sides of the outer and inner walls and by transverse ribs are connected and below the oppositethe outer wall truncated outer wall emptying an open to the side insert groove, advantageously fill the ribs used the gap between the double walls to the upper conclusion completely and are there. The rib strips can be glued or welded. In the fields of the rib strips openings are arranged. The rib strips may protrude slightly below the lower edge of the outer wall of the double wall slightly above the outer surface thereof.

After a convenient weiterbüdung the rib strips are provided immediately above the above Teü with continuous or interrupted longitudinal grooves, and the outer walls have at their lower edge inwardly projecting lugs for engaging in the grooves after insertion of the rib strips. The insert grooves are used for inserting guide rails of various shapes. Suitably, the rib strips are provided below the insertion grooves with a lower, final Kastenprofü. At the lower inner edge of the Kastenprofüs advantageous inwardly projecting mushroom-shaped projections are integrally formed and at the, extended to below the drawer bottom inner wall recesses are arranged from the lower edge forth whose width corresponds to the stems of the püzförmigen approaches.

The insertion grooves are preferably provided on the bottom of the groove with openings or other formations for the positive and / or retaining holding of corresponding counter-projections on the guide rails used. The guide rails and / or the outer edges of the insertion grooves may be provided with mutually overlapping projections as a dust seal. The lateral outer walls can also, starting above the rib strips, more spread apart or offset to the outside, smooth surface be provided with an apron, which overhangs the drawer slide.

At the front of the drawer and at the front edges of the rib strips dowel-shaped projections for attaching the front panel are arranged. On the front of the drawer but also approaches can be ausgebittel as bushes whose lying in the course of the wall floor is expediently provided with Soübruchsteüen. In the jacks dowels are used to attach the front panel. But the jacks can also be used, in pairs one above the other, to attach a block with a dovetail groove, and a matching dovetail bar for attachment to the inside of the front panel be provided. On the narrow side of the dovetail groove, a screw for height adjustment and / or jamming of the strip and thus the aperture is expediently arranged.

Paired superimposed sockets can also be provided with vertical through holes and provided for attachment to the inside of the front panel plate has in the bushing projecting lugs, which are provided with ebenfaüs continuous and aligned to the socket bores threaded holes for receiving a continuous retaining screw or a retaining pin , A Beschlagteü for mounting on the inside of the front panel may also consist of a plate with matching cams in the bushes and an adjacent, inwardly inclined hooks and a comparison with the front of the drawer, höhenversteubaren in a guide by means of a screw gleichgeformable, obliquely below hook.

The ribs are on the lower Teü, in which the insert grooves are formed, on the trailing edge of the drawer and in the region of the supernatant is at the bottom of the insert a

- 4 No. 355756 from inside to outside acting screw arranged. The front outer parts of the inserted

Guides are slightly bent inward from the insert groove.

The use of rib strips in the space between the double side walls of the drawer not only results in a special stiffening of these side walls, the connection of the inserted rib strip with the inner surfaces of the double walls is considerably improved by the flat contact with the fields between the ribs of the rib strip, so that for the side walls in conjunction with the inserted ribs optimum stability and stability results, but on the other hand, a very firm cohesion and damping, a virtually complete extinction of the vibrations due to the flat contact with the fields between the ribs. Of course, this also significantly improves the strength of the connection between the drawer and the guide, and by the creation of the side-open insertion groove, it is possible to use and attach virtually all the various systems of drawer guides there, u.zw. Both the simplest and the most complicated double separations with ball bearings or rollers, as they are offered in the market. The installation of the rib strips on the drawer is greatly facilitated by the training with interlocking, form-fitting projections, they can be automated even with the appropriate number. The additional bonding or welding in the area of ​​the ribs and fields further increases the strength. Even with a positive connection between the rib strip and drawer is a displacement of the drawers against the rib strips, For example, during heavy acceleration or sudden deceleration when moving the drawer, when pushing or pulling safely prevented. Due to the possibility of using the drawer guides in the Einsatznut and the arrangement of an adjusting screw in the rearwardly projecting part of the insert is given the opportunity that the guide parts or guide rails in the front and rear of something obliquely against each other or can be bent, so that both in inserted state of the drawer as well as in the most extended state of the drawer results in a certain tension of the guide rails against each other, through which the game is eliminated and a lateral movement of the drawer is prevented in these layers, so a "slag" of the drawer is effectively avoided.

Due to the invisible attachment of the front panel not only the advantage of improved appearance is achieved, but it is especially maintained Vorteü, which is particularly substantial and appreciated in such one-piece drawers nämüch the MögUchkeit that such drawers already due to their Ausbührung are clean and also better to keep clean.

The invention will be explained in more detail below with reference to exemplary embodiments with reference to the drawings. 1 shows a drawer according to the invention in a perspective view, FIG. 2 also shows a perspective view of the side of the drawer with the rib strip which is shown separately underneath, FIG. 3 side view of the rib strip, FIG Ribbed strip, partially cut along the line IV-IV of Figure 3, Figure 5 shows a cross section through the rib strip along the line VV of Figure 3, Figure 6 is an enlarged view of the front end of the fin bar, Figure 7 is a perspective Darsteüung a 8 shows a perspective view of another embodiment of the front side of the drawer, FIG.

- 5 No. 355756

A drawer, molded in one piece of plastic, has a front -8- molded to the bottom -----, a back wall --3-- and sides --4 and 5-- are also integrally connected to each other at the corners. This results in both the edges between the floor --8-- and the vertical sides and on the upper edge of the pages opportunities to form well rounded edges that provide various benefits. Reinforcement --9-- is formed on the upper edge of the front panel - 2-- and reinforcing ribs - 10-- are also formed on the front surface of the front panel - 2--.

At least the sides --4 and 5-- are formed of an inner side wall - 6-- and an outer side wall -7-- which surround a gap - 11-- which is open at the bottom. In the embodiment shown here, the rear wall --3-- is shaped in the same way. At sides -4 and 5-- the outer sidewalls -7-- are shorter than the inner sidewalls - 6--.

The gap --11-- is smooth, there are no ribs formed there, which require complex molds. A ribbed rail -12- has in its upper part longitudinally offset fields - 13 and 14--, of which the fields --13-- with their outer surface to the inner surface of the outer side walls --7-- after the Insert and leave the outer surfaces of the panels - 14-- after insertion against the inner surfaces of the inner side wall --6--. At its upper edge, the fields --13 and 14-- are provided with a rectilinear web -15--, which is rounded on its upper side and adapted to the inside of the upper edge of the intermediate space --11--. Between the staggered fields --13 and 14-- are arranged in a vertical plane at right angles to these fields narrow connecting walls, the ribs - 16-- büden. In the fields -13 and 14-apertures -17-- are left out.

The outer side wall -7-- is shortened compared to the inner side wall --6--. The offset fields - 13 and 14-- extend only over this upper portion of the outer side wall - 7-- and the inner side wall - 6--, while the ribs - 16-- on the inside of the rib strip - 12-- are continued to about the lower edge of the inner side wall --6--. The continuation - 16 - of the ribs on the inside of the ribbed bar - 12-- is separated by a longitudinal bar - 18 - from the upper part of the rib bar with the ribs - 16--.

This longitudinal ridge --18-- forms the top of the lower part of the ribbed ridge --12--. In this lower part, an insert groove, open to the side, is tted out, the bottom of which -20- is displaced outward only slightly from the inner fields, and on its inner side is a continuous surface. on which the lower parts of the ribs are formed, and from which they protrude. At the bottom, the insert groove - 19-- is delimited by a flat longitudinal web - 21--, which is connected to a wall piece at right angles to it - 22-- and the lower edge web - 23-- a box-like profile that surrounds an inwardly open, channel-like space. Immediately above the longitudinal ridge -18-- are in the fields --13-- continuous or at individual fields grooves --25-- gebüdet, which preferably have at their bottom an upper right angle and are rounded at the bottom of their bottom , These grooves --25-- opposite are at the inner bottom edge of the outer sides wall - 7-strips --26-- formed with the same cross-sectional shape as the groove --25--. The inner side walls, beyond the bottom of the drawer, are in the same plane provided with extensions, the ledges 277 for the flat uprising and closing of the drawer body. On the lower edge of these strips --27-- is from the outside of the inner edge of the lower edge web --23-- the rib strips --12-- on.

When inserting the ribbed bar --12-- with its upper part into the gap --11-- between the inner side wall --6-- and the outer side wall -7-- of the drawer, the inward-facing tabs snap in. --26- - on the inside of the lower edge of the outer wall --6-- into the grooves --25 - on the lower edge of the outer panels --13--, while the mushroom-shaped projections --28- on the inside of the lower edge of the Insert fin strips with their handles -30- into the recesses -29- on the lower edge of the strips --27-- of the drawer body. It is thus hergesteüt a positive connection between the rib strip and the drawer body. Of course it is

It is advantageous to abut the inner sides of the outer and inner side walls of the drawer

Fields -13 and 14- even at the contact points still gluing or welding with the drawer body.

The bottom -20- of the insertion groove -19- is provided with a plurality of longitudinally spaced holes -31-, which preferably have a rectangular outline. Preferably, in the vicinity of the rear end, at the bottom of the insert groove, there is a vertically extending, continuous slot -32-. The parts of the drawer guides to be inserted into the insert groove 19 are made of a rail -33- which, for example, has a U-shaped profile and is formed from sheet metal in the case of the commercially available drawer slides which can be used here. At the base of this U-shaped Profüs tongues -34- are punched out at intervals and bent double-angle, so that they first of the rail -33- with a short Teü -35- at right angles and then with another Teü -36- paraüel to the Rail -33- are angled. This Teu -36- is at most as long as the openings -31- on the bottom of the Einsatznut -19-. The rail -33- is to use with these double-angled tongues -34- in the openings -31- and then move in the insert so that the Teüe -36- engage behind the wall of the rib strip. In order to hold the rail -33- in this attached to the rib strip Steüung, at the rear end of the bar -34-, attached to a further punching or in a special way, a projection -37- arranged in the slot -32 - In the bottom of the insert groove in the advanced and positively connected to the rib strip Steüung the rail -33- engages and thus effectively prevents pushing back and release of the rail. Appropriately, the approach is -37-, for example, in the form of a threaded screw or rivet and much longer than the depth of the slot corresponds -32-. It can be seen that in the Einsatznut -19- due to the available space practically aüe standard drawer slides can be used, u.zw. very easy-to-use guide rails as well as guide rails for pull-outs and double pull-outs.

The guide rail, which is to be connected to the body -38- of the furniture, for example, as a simple angle rail -39- be gebüdet, as dargesteüt in Fig. 13, but it can also have more complicated shape, for example as shown in FIG. 14 is dargesteüt. There, the guide rail -40- has a U-shaped profile with an inwardly facing guide bar, which engages in the U-Profü attached to the drawer rail -33-. In this Ausbüdung it is possible to form on the drawer laterally an apron -41-, which overlaps the Einsatznut and the guide rails and protects against contamination. In the embodiment shown in Fig. 14, the skirt -40- is formed below the lower edge of the outer side wall -7- at the outer edge of the longitudinal web -18-.

In order to effectively avoid "slacking" of the drawer, a lateral movement in the retracted and also in the extended state, the guide rail connected to the Möbüiorpus -38-39 or 40- at its front end with a Abspreizschraube -41- is provided, the expediently tightly below its screw head is provided with a collar -42- and inserted into a, after the front end open slot of the width equal to the diameter of the screw -41-, in the front end of the rail -39-. By means of this screw, as can be seen from FIG. 12, the front end of the rail -39- is slightly pushed away from the body -38-, so that it rests against the drawer and thus the guide rail attached to the drawer. closer. The guide rail -33-, which is connected to the drawer, is pushed outwards at its rear end by an expansion screw -43-. Also, this rail -33- is thus slightly bent from the Einsatznut -19- with its rear end against sitting in the carcass, opposite guide rail. For this purpose, in the over the rear wall -3- of the drawer extended Teü -44- the ribbed a special seat for the expansion screw -43- arranged and the displacement of the strip -33- in the Einsatznut preventing tongue or rivets -37- is extended so that it has mobility in the slot -32- at right angles to it.

- 7 No. 355756

By attaching the adjusting screws or spreading screws --41 and 43- it is possible to

To adjust spread of the associated guide rails during installation of the drawer in the desired manner and to adjust.

By extending the Einsatznut -19- beyond the rear end of the drawer addition, can ⁵ the guide rails in which the rear end of the drawer projecting part securely attached to the drawer and anchored, so that even with fully extended drawer, so if the rear wall -3- is approximately in a plane with the front of the furniture body, the drawer still safe is held and guided and the guides can be supported in the Einsatznut and not just with the protruding part to absorb the entire load of the drawer must.

¹⁰ At the front end of the rib bar -12- perpendicular front walls -45- are formed, which close the gap -11- between the inner and outer side walls to the front and limit and in a plane with the outer front edge of the reinforcement -9- at the Front of the drawer are. At these front walls dowels -46- may be formed for connection to a front panel in the known manner; It is then appropriate to still¹⁵ at least one of the reinforcing ribs -10- on the front -2- of the drawer one or more dowels -46- integrally formed for connection to the front panel.

According to Figure 8, the front walls -45- of the rib strips -12- are made smooth, and it is for the ribs -10-, which are integrally formed on the front side -2- of the drawer, an additional Anformung in the form of sockets --47- made. The bottom of the sockets --47-, the²⁰ in the plane of the front -2- the drawer is expediently provided with a predetermined breaking point -48- in the form of a sharp groove, which continues the inner surface of the bushing -47- in the material of the front inside. According to FIG. 17, the bottoms of the sockets -47- are to break out at these predetermined breaking points, then separate screw guides -49- are glued or welded from the outside into these sockets -47- and the front panel 50 is removed from the frame²⁵ Interior of the drawer attached with screws -51- through the bushes. The holes formed in the interior of the drawer on the front side can be concealed with corresponding cover caps -52-.

According to another embodiment of the attachment of the front panel --50- a separate fitting part with nozzles according to FIG. 15 is provided in two different embodiments. This³⁰ Fitting part consists of a plate -53-, to which cylindrical projections -54-- are molded for use in the bushes -47-. Bushings and lugs -54- are provided with a vertical bore -55-, with the bore in the uppermost lug -54- is provided with an internal thread. On the plate -53- the lugs -54- opposing dowel -56- may be formed for securing the front plate -50-, as shown in the left-hand illustration in Fig. 15³⁵ is, it can be provided on the plate -53- also cross holes -57- to attach to the front panel -50- by means of screws that allow a side or height adjustment of the front panel -50- against the fitting and thus the drawer before final tightening ,

The attachment of the cylindrical projections --54- and thus the front panel -50- to the drawer is such that these approaches are first inserted into the sockets -47-, and it ⁴⁰ is then passed from below a screw pin -58- down through the vertical holes -55- down and screwed into the thread of the upper bore.

According to a further embodiment according to FIG. 18, the front panel -50- is provided with a dovetail-shaped strip --59- on its inside, and to the front side -2-- of the drawer is a dovetail groove -60- molded for receiving the dovetail bar ⁴⁵ the front panel -50-. By means of a screw -61-, which is screwed from below into the dovetail bar -59-, this can be compared to the Schwalbenschwanznut -60- brace and adjust to some extent for height adjustment.

Another possible connection of the front panel -50- with the drawer is shown in Fig. 19. There is one at the front --2-- of the drawer to be fixed or attached⁵⁰ molded fitting part -62- provided with a guide groove -63-, which may be ausgebuedet example, as a T-slot. At the lower end of this fitting, a projection -64- protrudes at a right angle with a hole -65-. In the groove -63- with a corresponding Führungssteü -66- an obliquely downwardly standing, wide hook -67- vertically slidably guided in the ebenfaüs a

- 8 No.355756

Hole -69- is located, which is coaxial with the hole -65- and is provided with internal thread.

Through the hole -65- a screw with a long shaft is guided, with its thread in the

Internal thread of the hole -68- engages. By means of this screw is the hook -67- in his

Guide adjustable.

The hook -67- opposite is formed on the front panel -50- on a plate -70- an obliquely upward hook -71- molded. On the plate -70- are also cylindrical projections -72- formed for insertion into the sockets -47- to the front -2- of the drawer. In addition, cross holes -73- are still placed in the plate -70- for attaching the front panel -50- in the manner described above. After attaching the plate -70- to the front panel -50- the front panel with the lugs -72- is inserted into the bushings -47- and by tightening the screw -69- the movable, downwards hook -67- is over pulled obliquely upwards hook -71- on the front panel, so that the two hooks wedged against each other, as shown in FIG. 19,