EP0820712A2 - Guiding device for a drawer with double extensible guide - Google Patents

Abstract

The drawer rail (3) is fixed on both sides to the drawer (22) and the body rail (1) is fitted on two opposite inner walls (11) of a furniture body accommodating the drawer. A middle rail (2) is fitted between the drawer and body rails. The body rail is U-shaped, whereby one arm is formed as installation edge for fixture to the body inner surface and is connected with the second rail of the U-shape, which is formed as a vertical bearing wall, by a horizontal running surface (14). The bearing wall on its outside turned away from the body inner wall has two rollers (8) and on its upper end has a further horizontal running surface (15), which has a vertically downwardly facing edge.

Description

The invention relates to a full extension guide for drawers according to the preamble of claim 1 or Claim 7, or of claim 8.

A drawer slide is called a full extension the drawer is fully pulled out of the body allows out without pulling the drawer out of it Lift fitting out, so far that the inner wall surface the back of the drawer with the front cabinet front flees.

Different systems are known, which are the full extension of drawers. For example, at so-called differential extracts a differential run of the individual rails, whereby the classic Differential pull-out all rollers on the middle rail are arranged, and one between the drawer and cabinet rail rolling differential roller causes the middle rail always over the entire extension path of the drawer takes part in half of this move. Other differential extracts have gears mounted on the center rail on, the meshing with the drawer rail and the body rail provided racks are arranged. Also Guided tours via control cables or friction wheels are possible. So are for example in EP-A-19 163, EP-A-664 983 or also EP-A-664 984 differential extracts are disclosed.

These differential extensions have a relatively large overall height on so that they are generally not used as underbody guides can be used (i.e. below the Drawer bottom, the guide mechanism is pulled out Drawer not visible). This in particular too due to possible space collision with those in the drawer front area fittings to be provided.

Other known full extension systems combine two single partial extensions. Such a system is for example described in EP-A-578 905, with shop rail and Middle rail and middle rail and body rail each correspond to a single partial statement. In general, can the movement of the central rail in such systems is not can be controlled reliably, or only over more complex ones Control mechanisms such as that proposed in EP-A-578 905. Another one, also two single partial extracts combining system is disclosed in EP-A-219 733, the limitation of the extension path of the central rail via stop parts to be partially run over by the rollers is effected. The one described in EP-A-620 993 The middle rail on the cabinet rail is fully extended guided on the inner side wall, while shop rail and the part of the middle rail that engages with it is arranged below the drawer bottom. This in principle two easy-pull-out guides the forces occurring when the drawer is pulled out barely accept the counter-guides of the center rail-body rail can.

Full extensions of this type, combining two single partial extensions, where each of the excerpts is about half of the Moving out takes over, are generally with one another arranged rails formed, the middle rails mostly S or Z-shaped, the drawer or the carcase rail embraces. This is such an arrangement for underbody mounting unsuitable, also works because of this Arrangement of gravity self-closing only limited.

DE-A1-42 24 281 is a pull-out device described, the one mounted on the shop rail Has roller that is in direct contact with the Body rail has, it acts both as a movement the roller supporting the shop track as well as a tilting roller that limits the tilting movement of the drawer. In order to can about the positive engagement of shop and Body rail the middle rail with travel reserve for pull-out and indentation are provided. She can also do her Develop support effect depending on the extension path. Such a pull-out device, in particular for Use in high-rise cabinets is designed, however on the one hand, can only be used to a limited extent and not absolutely sufficient lateral stability for use for Drawers.

In contrast, the invention has the object to provide a full extension guide for drawers that a controlled movement of the middle rail when moving out the drawer causes disturbing impact noises in the substantially avoided, furthermore sufficient lateral stability is guaranteed and the multifunctional - possibly also as a pure underbody guide can be. This is achieved through realization of the characterizing features of claim 1 and Claim 7, or of claim 8.

Alternative or preferred versions are by the Characteristics of the dependent claims described.

If the support roller on the body rail and thus also on The drawer body is fixed - with respect to the Body front - is placed in the foremost area the gravity pull of the drawer when Pushing back in significantly improved.

This simplified construction also allows them to be modular Application for conventional drawer types without structural change fit in this full extension guide. The corresponds to the replacement of the simple roller with two superimposed rollers, each act as either a roller or a tilting roller, as for conventional partial extracts known.

The functionally reversed arrangement of the individual Rails, simplified due to the combination of the single-stage management of the pure support roller with the two-stage guidance of the run and tilt function take over the construction of the full extension clear.

If one of the rollers - especially the roller - and preferably when arranging the full extension guide on the side the drawer, with a circumferential groove into which a Leading lead engages, which in turn in particular is assigned to the body rail, so the lateral stability the guide - even with the drawer fully extended - elevated.

One - especially loose - mounted on the middle rail Control roller that - at least when the drawer is inserted - each with a surface of the drawer and carcase rails in Touching causes a controllable take-away control the middle rail, in particular or at least in the initial phase of the pull-out movement.

Fig.1

eine Vollauszugsführung in explodierter Darstellung entsprechend dem Stand der Technik;

Fig.2

die Vollauszugsführung der Fig.1 in Blickrichtung von vorne - bei abgenommener Schubladenfront und in den Korpus eingeschobener Schublade;

Fig.3

die relative Lage der drei Schienen der Vollauszugsführung der Fig.1 bzw. 2 bei teilweise ausgezogener Schublade, voneinander getrennt dargestellt;

Fig.4 und 5

zwei Varianten einer Vollauszugsführung für Zargenschubladen;

Fig.6

eine Vollauszugsführung, bei der die Laufrolle als Doppelrolle ausgebildet ist;

Fig.7

eine zur Ausbildung der Fig.2 funktionell umgekehrte Ausbildung einer Vollauszugsführung;

Fig.8a, 8b und 8c

eine weitere Variante einer Vollauszugsführung mit gleitend gelagerter Mittelschiene in Blickrichtung von vorne bzw. in zwei Seitensichten bei teilweise ausgezogener Schublade und

Fig.9

eine der Fig.5 entsprechende Ausbildung einer Vollauszugsführung mit an der Mittelschiene angeordneter Steuerrolle.

The invention is described below purely by way of example with reference to drawings. Show it:

Fig. 1

a full extension guide in an exploded view according to the prior art;

Fig. 2

1 from the front - with the drawer front removed and the drawer pushed into the body;

Fig. 3

the relative position of the three rails of the full extension guide of Figures 1 and 2 with the drawer partially extended, shown separately from each other;

Fig. 4 and 5

two variants of a full extension run for drawer frames;

Fig. 6

a full extension guide, in which the roller is designed as a double roller;

Fig. 7

a functionally reversed to the formation of Figure 2 formation of a full extension guide;

Fig.8a, 8b and 8c

Another variant of a full extension runner with a sliding middle rail in the direction of view from the front or in two side views with the drawer partially extended and

Fig. 9

a configuration of a full extension guide corresponding to FIG. 5 with a control roller arranged on the central rail.

Fig.1 shows an exploded view Full drawer slide according to DE-A1 42 24 281 with three rails, one drawer rail 3, each is attached to a drawer 22 on both sides (FIG. 2), a body rail 1, each on two each other opposite inner walls 11 of a drawer 22 receiving furniture body (Fig.2) is attached and one arranged between drawer 3 and body rail 1 Middle rail 2. The body rail 1 is approximately U-shaped formed, with one leg of the U as a mounting edge 1a is designed for attachment to the inner surface 11 of the body and with the second leg of the U, which is called vertical Bearing wall 1c is formed over a horizontal to this Tread 14 is connected. The bearing wall 1c supports its outside facing away from the inside wall 11 of the body two rollers 8 and 8 'and has one at its upper end further horizontal tread 15 on a vertical downward edge 1d carries. An am - in the built Condition - intended for the front end of the body rail Stop 19 serves as a limit for the extraction of Shop rail 3 and thus as a limitation for the pull-out of Drawer as such, as can be seen in particular from Figure 3 and represented based on this.

The middle rail 2 is for receiving the two rollers 8 and 8 'of the carcass rail 1 are approximately C-shaped, with horizontal rolling surfaces 17 and 18, each of which a vertical edge 17 'or 18' up or down is arranged pointing. On - when installed - front end of the middle rail 2 is on the inside of the the two rolling surfaces 17 and 18 connecting, vertical Wall 2a arranged a support roller 9, which over the top Rolling surface 18 is supported outstanding. There is one Recess 18a is provided on this rolling surface 18. At the rear end of the middle rail 2 is an extract restricting limit 20 arranged, this limit 20 with the rear of the two on the body rail 1 provided roles 8.8 'cooperates.

The shop rail 3 has a profile that is approximately one inverted U is shaped accordingly. This shop rail 3 - as can be seen from Fig. 2 - with the upward pointing base 3a of the U-shaped profile on the underside of the drawer bottom 4 mounted. The two legs of the U-profile point vertically downwards and embrace the middle rail 2. The leg facing the inner wall 11 of the body 3b carries on the inner surface of his - in the built Condition - rear end of a roller 6. One on the Base surface 3a can optionally be provided recess as a driver 21 interacting with the support roller 9 to serve. The base 3a is used to guide the support roller 9 a U-shaped cross-section running groove 13 provided.

From Fig.2 are in the direction of view of the front of the drawer - with the drawer front removed - the three rails the drawer guide can be seen in the assembled state, for which Fig.3 the relative position of the three rails to each other with the drawer partially extended (the front cabinet front 10 is indicated by dashed lines), for better understanding shown separately from each other. Now the drawer 22 is pulled out of the body, so is about the support roller 9 - optionally under the influence of Carrier 21 - the middle rail 2 taken with the In the case of a single pull-out, the usual pull-out loss over the body edge 10 can be moved. The shop track 3 can be moved as far out of the body as the roller 6 is still guided in the body rail 1. From the body with moved out middle rail 2, the two rollers 8 and 8 'mounted on the body rail 1 encompasses, thus supports the shop rail 3 and on it attached drawer. As in particular from Fig.2 can be seen, the roller 6 within the body rail 1 out, between the two treads 14 and 15, this roller 6 at the beginning of the pull-out movement runs on the lower tread 14 with increasing extraction however acts as a tilting roller, due to gravity due to weight the drawer is pushed up over the drawer rail 3 and then moving out on the upper tread 15 rolls. The maximum extension for this full extension guide is determined by the diameter of the roller 6.

As can be seen in particular from FIG. 3, the middle rail can 2 executed in such a length and the Rollers 8, 8 'can be arranged on the body rail 1 in such a way that even in the fully extended state, there are still reserves for extension paths and even in the fully inserted state there are still slide-in travel reserves consist. Since the middle rail 2 not used to limit the total extension path and therefore no stop function can be assigned to it both driver 21 on the shop rail 3 and limitation 20 on the middle rail 2 itself particularly shock absorbing, for example resilient. In order to becomes the annoying hitting noise that occurs when actuated a full extension consisting of two partial pull-outs arise and are generally perceived as disturbing, noticeably reduced. Damping elements, such as springs or Elastomers, allow a practically noiseless The middle rail 2 runs onto the respective stops 20 or driver 21.

Embossing in the front area of the groove 13 of the Drawer rail 3 and in the rear area of the middle rail 2 improve the enema function, and can also influence the control function of the middle rail 2 positively. To improve the take-along function you can use the Groove 13 of the shop rail 1 and / or on the rolling surface 17 and 18 of the middle rail 2 embossing, grooves or friction-increasing Coverings are provided.

At the front end of the lower tread 14 of the body rail 1 provided recess 14a (Fig.1) allows this Bypassing the stop 19 to remove the drawer from the cabinet rail 1 to be lifted out or put back in again.

Corresponding to that known from the partial extract, in particular only the drawer self-retraction for the last feed path when inserting them into the body can also here the tread 14 or both treads 14 and 15 of the Body rail 1, slightly sloping downwards at the back be trained.

4 shows a possible embodiment of a Full extension guide according to the invention, which here for a Frame drawer is provided. The bottom 4e of the drawer lies between the two sides of the same Shop rails 3e (one of which is shown in Fig.4), the are approximately Z-shaped and each one lower, horizontal, supporting the floor 4e Have profile legs 3e '. A vertical one Drawer side wall forming or such Receiving middle part 3be carries the roller 6e, which in one of the two bulges 1e 'which is approximately S-shaped trained body rail 1e runs. The other, here upper bulge 1e '' are the rollers 8e and 8e ' assigned to that in the inside of this upper bulge 1e '' arranged middle rail 2e run. On the middle rail 2e is the support wheel 9e, the middle rail 2e cantilevered, arranged. About the on the inside of the upper horizontal leg 3ae provided groove The middle rail also becomes 13e when the drawer is actuated taken in the manner described above. The Roller 6e is here provided with a circumferential groove 23 which with one on the lower bearing the lower tread 14e Profile leg provided guide projection 24 the causes lateral guidance of the roller 6e. Of course this lateral guidance could also be carried out by a Roller 6e encompassing tread 14e (corresponding to the Fig.5) and one of the upper tread 15e of this body rail 1e assigned guide nose 24 '(as dashed indicated) can be effected. The middle rail 2e is here with the closed side against the inside wall of the body 11 arranged what is visible when the drawer is pulled out Middle rail 2e certainly for aesthetic reasons is to be preferred.

In Figure 5 is a variant of that shown in Figure 4 Formation of a full extension guide according to the invention shown, which is also suitable for drawer frames. The drawer rail 3f is that shown in FIG formed accordingly, the body rail 1f includes in its lower, the treads 14f and 15f Part the roller 6f, while the part above it the carcass rail 1f on one on the carcass inner wall 11 attached wall part 1f '' carries the rollers 8f and 8f 'that from here with the closed side against the shop rail 1f directed center rail 2f embrace will. When the drawer is pulled out, the middle rail becomes 2f as an open, at least one slit-shaped, the Permitting passage of the axes of the rollers 8f and 8f ' Opening can be seen.

4 and 5 are particularly narrow, because of the special shape of the Body rail, the multiple running areas - for Shop rail and central rail - provided.

6 shows a further variant for a device according to the invention Full extension run, in which the double function of Roller 6 as a roller and tilt roller on two rollers 6g and 6g 'is divided in the rear area of the shop track 3g are arranged one above the other and on a lower and an upper tread 14g and 15g, the on a horizontal profile bar of the cabinet rail 1g trained to unroll. This is already working known for partial extracts. The drawer is over a pulled out a certain amount and tends to tip over, so there is a change in the running direction of the two Rolls 6g and 6g ', according to the change of function. The body rail 1g is approximately U-shaped, wherein the horizontal, including the lower roll 6g Profile bar, the tread 14g on its underside and carries on its top the tread 15g, of which Body inner wall 11 is arranged away. The rolls 8g and 8g 'are on the inside of the free vertical leg, arranged on the bearing wall 1cg by the middle rail 2g are enclosed. The middle rail 2g has on her the front end of the support roller 9g arranged on the the track 3g provided rolling groove 13g and when the drawer is moved, the middle rail is carried along 2g causes. Because the front support roller with the middle rail is pulled out, that for full extension required lever reached.

7 shows a further variant, in which the rollers 8h and 8h 'carrying the central rail 2h (only the front of the two rollers can be seen here) are fastened here to the drawer rail 3h, the path of the central rail 2h being removed when the drawer is pulled out is limited backwards by the limit 20h, which interacts with the front of the two rollers 8h, 8h ' , so that the support lever action of the center rail 2h is ensured. The roller 6h is arranged at the rear end of the central rail and runs in the body rail 1h either on the lower running surface 14h or - corresponding to the dual function shown - on the upper running surface 15h. The support roller 9h is arranged on the body rail 1h at the front, specifically in relation to the body.

This arrangement according to Figure 7 could - in a similar way Way as with the help of Figures 4 and 5 or Figures 8a to 8c shown below - with the body rail provided, two essentially one above the other arranged running areas; and suitable then especially for installation in drawer frames.

8a, 8b and 8c show a further embodiment, in which - similar to the variant according to FIG. 7 - the middle rail 2k when the drawer is moved out of the body (the front body front is dashed with in FIGS. 8b and 8c) 10 indicated) is moved with respect to the drawer rail 3k in the opposite direction. As can be seen clearly from FIG. 8a, which shows the view of this pull-out variant in the installed state with the drawer front removed, the three rollers assigned to the individual rails are arranged essentially one above the other, the bottom roller 9k, which is mounted on the body rail 1k is, the support function takes over, as can be seen from Fig. 8c, which shows the situation when the drawer is fully extended. The drawer rail 1k is designed as a profile which encompasses both the support roller 9k and the central rail 2k and carries the roller 6k which rolls on the lower running surface 14k of the essentially C-shaped body rail 1k. The middle rail 2k - here designed as a full profile - runs in the correspondingly counter-shaped drawer rail profile and carries the tilting roller 6k ' , which is directed against the upper running surface 15k on the inner upper side of the body rail 1k and runs thereon.

The sliding bearing or guidance of the middle rail 2k on the drawer rail 1k is possible because the middle rail 2k when pulling out the drawer in the first pull-out area is completely unencumbered. That doesn't just result in one simplified construction and parts savings also increases the lateral stability of the overall extension considerably.

A nose 25 on the body rail 1k serves as Restraint device against a stiction due to stiction Carrying the middle rail 2k. About one with one Driver stop 26b cooperating driver 26a the middle rail 2k is run over this nose 25, a Corresponding game 27, possibly by easy bevelled backward shaped profile of the Middle rail 2k - in combination with the next to the rear rising upper tread 15k - gives the necessary Free space. Alternatively, the nose 25 can also be elastic - for example made of spring steel - be formed in shape a tongue.

As can easily be seen from Fig.8a, the Shop rail 1k as an independent part is completely eliminated, if the side frame 16 is profiled accordingly, and thus takes over the function of the shop track. For Hardwood frames are without sacrificing the Functionality possible without any problems.

Since the support roller 9k - like the support roller 9k of the in the variant shown in Fig.7 - on the body rail and thus also stationary on the drawer body - with reference on the front of the body - in the foremost area, becomes the gravitational pull of the pulled out drawer significantly improved when reinserted.

The arrangements of Figures 7 and 8a to 8c can - how easily visible - easily as a partial extension combination be used when the shutter and middle rail against one pure shop rail and the tilt function - as known - is controlled via the shop track. This brings the advantage that in the same body rail in the Partial or full extension in the same mounting position becomes usable.

Fig. 9 shows another in a schematic side view Possibility to train a full extension, whereby at a training according to FIG. 5 additionally a - in particular loosely stored control roller 25 is provided is mounted on the middle rail 2i, and the both a surface of the shop rail 3i - here the running groove 13i - as well as a surface of the body rail 1i - here the on its underside carrying the upper tread 15i horizontal profile bar - touched. When the drawer is pulled out becomes a controlled entrainment through this control role the middle rail 2i possible, the middle rail 2i half way each of the covered by the rail 3i Traveled over as long as the steering role 25 touches both surfaces. The control roller 25 is at a certain extension path one of the two areas, in this arrangement is assigned to the shop rail 3i, leave. From the above outlined to the entire For arrangement acting forces is preferred free storage of the control roller 25 understandable.

One such that has an additional tax role Training a full extension guide is in the appropriate Way also for those shown in Fig.5 and 6 Training variants possible, also for that of Fig. 2, if at least part of the lower leg of the Body rail 1 is designed to engage under the middle rail is shown (dash-dotted lines in Fig. 2).

Claims (11)

Full extension guide for drawers with one on the Inside (11) of a carcass that can be attached to the carcass (1h; 1k), a middle rail (2h; 2k) and one attachable to the drawer (22) Shop rail (3h; 3k), each of these rails at least one each with respect to this rail has a fixed role and where on the Shop rail (3h; 3k) and / or on the middle rail (2h; 2k) at least one roller is mounted, which in there is direct engagement with the body rail (1h; 1k), characterized in that the body rail (1h; 1k) assigned, fixed role a pure Support roller (9h; 9k), which is in direct engagement with the Shop rail (3h; 3k) stands and which - in built Condition of the full extension in relation to the Body front (10) - in the front area of the Body rail (1h; 1k) is stored. Full extension guide according to claim 1, characterized in that the at least one role (6h) on the Middle rail (2h) as well as the movement of the Drawer (22) supporting castor as well the tilting movement of the drawer (22) - in the extended Condition - limiting tilting roller is formed and in rear area, especially at the rear end of the Middle rail (2h) - when installed in relation on the body front (10) - is arranged. Full extension guide according to claim 1 or 2, characterized marked that on the shop track (1h) At least one - but preferably at least two - Roll (s) (8h, 8h ') is (are) stored in a profile formed by the middle rail (2h) can be unrolled, whereby on the middle rail (2h) especially the movement of the middle rail (2h) limiting limit stop (20h) provided is Full extension runner according to claim 1, characterized in that the at least one roller mounted on the drawer rail (3k) as a roller (6k) and the at least one roller mounted on the central rail (2k) as a tilting roller (6k ' ) in one of the body rail (1k ) formed profile can be rolled off, the roller (6k) being assigned a lower running surface (14k) and the tilting roller (6k ' ) an upper running surface (15k) on the body rail (1k). Full extension guide according to claim 1 or 4, characterized characterized in that the middle rail (2k) in one stored profile formed by the shop rail (3k) and can be guided smoothly Full extension guide according to one of the preceding Claims, characterized in that at the Carcass rail (1k) a possibly elastic trained nose (25) as a retaining device for the middle rail (2k) is provided, on the Center rail (2k) a driver (26a) is arranged to engage with one on the shop rail arranged driver stop (26b). Full extension guide for drawers with a body rail (1) which can be fastened to the inside (11) of a carcass, a central rail (2) and a drawer rail (3) which can be fastened to the drawer (22), each of these rails in each case at least one with respect to this rail has a fixed-mounted roller, on the drawer rail (3) a running and tilting roller (6) engaging in the carcass rail (1), on the central rail (2) a supporting roller (9) supporting and engaging in the drawer rail (3) and At least one roller (8, 8 ' ) engaging in the central rail (2) is provided on the body rail (1), characterized in that two rollers (6g, 6g') are provided which - preferably with axially parallel axes arranged one above the other - Are mounted on the drawer rail (3g), one of these two rollers (6g) acting essentially as a roller and the other of these two rollers (6g ') acting essentially as a tilting roller. Full extension guide for drawers with a body rail (1) which can be fastened to the inside (11) of a carcass, a central rail (2) and a drawer rail (3) which can be fastened to the drawer (22), each of these rails in each case at least one with respect to this rail has a fixed-mounted roller, on the drawer rail (3) a running and tilting roller (6) engaging in the carcass rail (1), on the central rail (2) a supporting roller (9) supporting and engaging in the drawer rail (3) and at least one roller (8, 8 ' ) engaging in the central rail (2) is provided on the carcass rail (1), characterized in that the carcass rail (1e; 1f) is designed such that - in the installed state - it has at least two in has essentially vertically superimposed, separate running areas, one running area for receiving the center rail (2e; 2f) and a second running area for receiving the running and tilting roller (6e; 6f) is. Full extension guide according to one of the preceding claims characterized in that at least one one of the rollers, in particular the roller (6e) has a circumferential groove (23) arranged on its circumferential surface, into the one engaging with that role standing, as running or rolling surface or running groove trained surface (14e) of one of the rails - in particular on the body rail (1e) - provided guide projection (24) engages the side guide effecting this role. Full extension guide according to one of the preceding claims, characterized in that one on the central rail (2i) - especially loose - mounted control roller (25) is provided, which - at least when inserted Drawer - with its rolling surface with each one on the drawer rail (3i) and body rail (1i) provided area is in contact, such control of the movement when the drawer is pulled out the middle rail (2i), at least in the first Movement phase, causing. Use of a full extension guide according to one of the previous claims as an underbody guide fitting or as a fitting for drawer frames.

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