EP2992781B1 - Pull-out guide - Google Patents

Description

The invention relates to a pull-out for extending an extendable furniture part of a furniture body in a pull-out and for inserting the extendable furniture part in the furniture body against the pull-out, comprising at least a first and a second guide rail, which are displaceable relative to each other in and against the pull-out wherein the first guide rail has a base profile and at least one side guide unit held on the base profile with a side guide part, wherein the side guide part cooperates with at least one side guide surface of the second guide rail in at least one transverse direction perpendicular to the pull-out direction to limit play of the second guide rail the position of the side guide part relative to the transverse direction relative to the base profile of the first guide rail is adjustable.

Pull-out guides serve to extend at least substantially rectilinearly a pull-out furniture part, such as a drawer, out of a furniture carcass. Mostly the extraction takes place in the horizontal direction, but also other withdrawal directions are possible.

In general, a pull-out guide is provided on opposite sides of the pull-out furniture part, with the two pull-out guides being more or less mirror-inverted.

For mutually displaceable guidance of the guide rails of pull-out guides, in particular rotatable about axes on at least one of the guide rails arranged rollers or between tracks of the guide rails arranged in cages rolling elements, in particular in the form of Bullets, known. Also Gleitführungselemente, optionally in conjunction with rollers and / or rolling elements are known.

In such systems, there are deviations in the distance between the attached to the furniture body on both sides of the extendable furniture part corpus fixed guide rails as well as in terms of the dimensions of the pull-out furniture part to deviations in the distance, which fastened on both sides of the extendable furniture part both in terms of dimensions of the furniture body extendable guide rails. Even the pull-out guides themselves have certain deviations in their dimensions. These deviations are caused by tolerances in the manufacture of the various elements, by slight misalignment of the furniture in a not completely flat surface on which the furniture is parked, by straightening deviations of the components used and by bending the elements under load in use. These deviations in the mounting dimensions are recorded in different ways according to the prior art.

In known pullout guides, the guide rails for receiving deviations in the mounting dimensions against each other on a sufficiently large game in the transverse direction, ie in the direction in which the both sides of the extendable furniture part attached pullout guides are spaced. Typically, a clearance of 1-3mm per guide page exists, so that no discoloration or lateral friction occur with usual deviations of the mounting dimensions. Side guide elements in the form of sliding elements or rollers are also known, in order to reduce friction and noise in the event of contact that nevertheless occurs in the transverse direction.

A disadvantage of such a design with a relatively large lateral play is that depending on the present in a specific installation situation a lateral play more or less strongly felt, especially at low load (= low load of the extendable furniture part). Especially in the extended state, the lateral stability of such leadership systems as felt insufficient, the leadership system is "unstable". Even when closed, the lateral position of the guide within the constructive side play is not defined and the positions of superimposed fronts are not aligned.

In particular, roller guides (with rotatably mounted about axes rollers) but also guides with trolley and sliding elements are formed with such a lateral game.

There are further known guide systems, in particular ball guides, which have no lateral play for structural reasons. Deviations of the installation dimensions in the transverse direction are absorbed by transversely bendable configurations of the profiles. Disadvantage of these solutions is a very limited tolerance tolerance. Already a deviation in the mounting dimensions in the transverse direction of one millimeter leads to high lateral forces and despite laterally acting rolling elements (balls) to noticeably increased frictional forces, so that, for example, the function of a Federselfbsteinzugs may suffer. Due to the existing lateral flexibility, it is also, especially in the extended state, to an unstable impression with manual side loads ("feather soft" appearance).

In a further conventional embodiment, the extension guides are formed on both sides of the pull-out furniture part even without a play in the transverse direction, for example, in addition to load-bearing rollers (which take the weight of the extendable furniture part) side guide rollers are present. To accommodate different installation dimensions in the transverse direction here has the extendable furniture part relative to the respective pull-out a game in the transverse direction. Advantage of this training is the relatively large tolerance tolerance in the transverse direction. The disadvantage, however, is that the existing lateral clearance between the pull-out furniture part and the pull-out guides on both sides can be felt by the user, especially in the extended state.

It is also known that the extendable furniture part can be connected in different positions relative to the transverse direction with the pull-out. Such training comes from the EP 1 483 984 A9 out. Here are elements that allow the side wall parts of the drawer latch at different positions relative to the transverse direction with the extendable guide rail of the pull-out. A disadvantage of this arrangement is the relatively complicated training with a large parts cost. Also, there is a loss of available storage space due to the large width of the construction, as several wall thicknesses must be accommodated constructively.

From the DE 25 49 444 A1 goes out a pull-out of the type mentioned. There are adjustable side guide parts in the form of sliding elements or rollers present to adjust a game between two guide rails of a pull-out with respect to the transverse direction. A side guide unit holding the side guide part or rotatably supporting it is here attached to one of the two guide rails and the side guide part cooperates on one side with a side guide surface of the other of the two guide rails. In order not to be able to be adjusted automatically by the action of drawer forces, the adjusting means for adjusting the side guide parts are designed to be self-locking. As adjusting means for adjusting the side guide part, for example, an eccentric is provided which can be used in different rotational positions in a housing of the side guide unit, wherein a rotation of the eccentric used relative to the housing by cooperating projections and recesses (on the type of cooperating teeth) is prevented. A disadvantage is the complex adjustment of the side guide parts. Also, the adjusting means, at least when they are arranged in a central or rear region of the pull-out, in the inserted state of a drawer or difficult to access. An adjustment can then be carried out on a trial basis with the drawer removed, whereby it is not determined until the drawer has been inserted whether the adjustment has to be adjusted or readjusted. In the DE 25 49 444 A1 are next manually operated adjusting means also called hydraulically or pneumatically operated adjusting means. However, such training is very costly.

From the DE 26 07 435 A1 is also a pull-out with adjustable side guide parts. In one of the embodiments shown, slides with different dimensions can be used to adjust the clearance between the guide rails. Also designed in the form of an eccentric slider, which can be used in different rotational positions is shown. In addition, a rotary piece is shown, are rotatably mounted on the side guide rollers. The rotating piece can be fixed in different rotational positions on a bearing part, for example by the axis of rotation is designed as a screw, which is tightened after adjusting the position of the rotating piece. The side guide parts resulting from this document also interact on one side with a side guide surface of the other guide rail. Also for those from the DE 26 07 435 A1 Known pull guides a relatively complicated manual adjustment is required.

Similar training courses also go from the DE 77 10 556 U out. Side guide parts in the form of sliding elements, which cooperate on one side with a side guide surface on the other guide rail, are adjusted by means of manually operated adjusting elements in their position with respect to the transverse direction. As adjusting an adjusting screw and an eccentric disc are shown, which is gradually locked by means of gears.

The object of the invention is to provide an advantageous pull-out of the type mentioned, by which a simple adjustment of the position of the side guide member relative to the transverse direction is made possible. According to the invention, this is achieved by a pull-out guide with the features of claim 1.

In a pull-out guide according to the invention, the side guide unit has an openable and closable locking device. In an opened state of the locking device, the position of the side guide part related to the transverse direction is adjustable relative to the base profile of the first guide rail by a pressure acting parallel to the transverse direction on the side guide part. In a closed state of the locking device, the position of the side guide part related to the transverse direction is fixed.

The inventive construction, a simple assembly process can be achieved. In particular, one of the two guide rails is connected to the furniture body (directly or via another guide rail) and the other of the two guide rails is connected to the pull-out furniture part (directly or via another guide rail), in which case the locking device of the at least one side guide unit in the open state the initially separate guide rails are inserted into each other. Since the side guide part of the at least one side guide unit in the opened state of the locking device by a parallel to the transverse direction acting on the side guide part pressure in the relative to the transverse direction position relative to the base profile of the first guide rail can adjust, the side guide part adapted to the respective specific installation situation position (based on the transverse direction) occupy.

In an advantageous embodiment, at least one spring may be present in this case, which holds the side guide part without an external force acting on the side guide part in a starting position, preferably in the middle position. When assembling the first and second guide rail in the open state of the locking device, the side guide may optionally, depending on the actual dimensions in the transverse direction, more or less adjusted from its initial position (in its relation to the transverse direction position), wherein the at least one spring the side guide member presses against the side guide surface of the second guide rail.

After assembly of the first and second guide rail, the locking device is closed, so that the reference to the transverse direction position of the at least one side guide member is fixed and the side guide member in the sequence in cooperation with the at least one associated side guide surface performs the desired leadership function with respect to the transverse direction.

The closing of the locking device can by a manual operation of an actuating element, for example by moving a lever, or automatically when pushing together the pull-out by starting a stop surface of the second guide rail to an actuating element of the first guide rail, which is for example designed as a lever done.

For fixing the side guide part in the closed state of the locking device, a carrying part carrying the side guide member is advantageously braced with a clamping part of the side guide unit or a clamping portion of the base profile of the first guide rail.

The side guide part is preferably designed as a roller, which is rotatably supported by the support member about an axis which is in particular vertically (with respect to the operating position).

In one possible embodiment, the support member is designed as an eccentric. The support member is for this purpose in the open state of the locking device about a rotation axis, in particular vertical, rotation axis rotatable. In the closed state of the locking device of the eccentric is locked by the locking device against rotation about the axis of rotation.

Instead of such positioning of the side guide part by means of an eccentric, the transverse direction of the positioning of the side guide member could also be performed by a linear parallel displacement of the support member or by forming the support member as a pivotable about an axis pivot arm.

The at least one side guide surface, with which the side guide member cooperates to limit the play of the first guide rail relative to the second guide rail in the direction in question parallel to the transverse direction extends in particular parallel to the pull-out, wherein the side guide surface is preferably flat and in a direction parallel to the pull-out and is perpendicular to the transverse direction lying plane.

The transverse direction is horizontal in preferred embodiments of the invention.

A preferred embodiment provides that the second guide rail has lateral guide surfaces lying on opposite sides of the at least one lateral guide part. The side guide member is thus located between the side guide surfaces, wherein the side guide member between the side guide surfaces has only a slight play in the transverse direction, which is preferably less than 0.6mm, more preferably less than 0.3mm. For example, the clearance may be in the range of 0.03mm to 0.6mm, preferably in the range of 0.05mm to 0.3mm. Such a slight clearance between the side guide member and the side guide surfaces is preferably at least over more than 50% of the way over which the side guide member and the side guide surfaces between the fully collapsed state of the pull-out guide and the fully extended state of the pull-out guide (= the pull-out) against each other move. In particular, when using more than one side guide unit in a pull-out, it may be advantageous over a range of Ausziehweges, in particular following the fully collapsed state of the pull-out, the game between the side guide surfaces and the side guide part or at least to remove one of the side guide surfaces. It can thereby be reduced in the vicinity of the fully collapsed state of the pull-out guide (for example, about 10mm to 150mm, preferably about 35mm to 80mm of the subsequent fully collapsed state of the pull-out guide portion of Ausziehweges) the friction. This allows a low design of the required pull-in forces in a spring feeder or low ramp angle in a gravity feed. By removing at least one side guide surface and a space for a different function of the pull-out can be obtained. In the vicinity of the fully collapsed state of the pull-out guide, a larger lateral play of the pull-out guide is less significant.

When assembling the first and second guide rails, the side guide member travels between the two side guide surfaces, being appropriately positioned with respect to the transverse direction. In the closed state of the locking device contacted the side guide member at a force acting in one of the transverse directions force only one of the side guide surfaces. In the case of a load change of direction, e.g. with a slightly conical body, the contact surface can be changed during the extraction or insertion of the pull-out. For the user, regardless of the tolerance situation and the respectively specific position of the side guide part related to the transverse direction, only the slight play between the side guide part and the side guide surfaces can be felt.

The retraction of the side guide member between the side guide surfaces can be achieved by a continuously increasing expansion of the side guide member in the transverse direction over a range with which the side guide member first enters between the side guide surfaces, as is the case anyway with a roller. When using a sliding part of this could be formed with a correspondingly tapered portion.

Also or instead, the side guide surfaces could be preset bevels.

If the pull-out guide has, in addition to the first and second guide rails, at least one further guide rail, then there is advantageously only slight play in relation to this further guide rail, in particular in the aforementioned size of the clearance between the side guide part and the side guide surfaces.

A possible embodiment provides that the first guide rail has at least two side guide units, which are spaced apart with respect to the pull-out direction. The side guide units can in particular be the same. Advantageously, the at least two lateral guide units of the first guide rail cooperate with the same lateral guide surface or the same lateral guide surfaces (located on both sides of the lateral guide elements). It can thereby be achieved an effective stabilization against rotation of the pull-out furniture part. Such an arrangement is particularly advantageous for wide drawers.

An advantageous device for extracting a pull-out furniture part of a furniture body provides that first and second trained in accordance with the invention extend guides are available. The two pull-out guides are in this case in the mounted on the pull-out furniture part state in the transverse direction spaced from each other, especially on both sides of the extendable furniture part, such as a drawer arranged. The first and second pull-out guides can be mirror-inverted. This is not necessarily so.

Through load-related deflections of guide rails and / or furniture body, changes in dimensions with respect to the transverse direction can occur. There may then be a pressure on the side guide parts of the side guide units, wherein the bending possibilities of guide rails and / or body to reduce. The side guide parts thus contribute, but only for load-dependent installation width changes, not for tolerance-related deviations of the pave widths.

• Fig. 1 erste und zweite Ausziehführungen zur beidseitigen Anordnung an einem ausziehbaren Möbelteil, in Schrägsicht, wobei eine der Ausziehführungen im vollständig eingefahrenen und die andere der Ausziehführungen im teilweise ausgezogenen Zustand dargestellt ist;
• Fig. 2 die beiden Ausziehführungen von Fig. 1 im vollständig eingefahrenen Zustand, wobei die Basisprofile der Führungsschienen durchsichtig dargestellt sind und somit die Laufrollen und Seitenführungseinheiten sichtbar sind;
• Fig. 3 eine stirnseitige Ansicht der beiden Führungsschienen mit schematisch angedeutetem Möbelkorpus und ausziehbarem Möbelteil;
• Fig. 4 eine der Seitenführungseinheiten mit auseinandergenommenen Führungsschienen;
• Fig. 5 eine Schrägsicht der Führungsschienen von Fig. 4 aus einer anderen Blickrichtung;
• Fig. 6 eine Schrägsicht einer Seitenführungseinheit;
• Fig. 7 und 8 Explosionsdarstellungen der Seitenführungseinheit aus verschiedenen Blickrichtungen;
• Fig. 9 eine Seitenansicht eines Abschnitts der ersten Führungsschiene mit eingebauter Seitenführungseinheit;
• Fig. 10 einen Schnitt entlang der Linie AA von Fig. 9;
• Fig. 11 und 12 Längsmittelschnitte durch die Seitenführungseinheit im geschlossenen und geöffneten Zustand der Feststellvorrichtung;
• Fig. 13 und 14 Schrägsichten eines Abschnitts der ersten Führungsschiene mit eingebauter Seitenführungseinheit, wobei der die Aushängesicherung bildende Hebel der Seitenführungseinheit teilweise abgeschnitten ist; im geschlossenen Zustand der Feststellvorrichtung und verschiedenen Positionen des Seitenführungsteils;
• Fig. 15 und 16 Draufsichten auf die Teile von Fig. 13 und 14;
• Fig. 17 und 18 stirnseitige Darstellungen der Seitenführungseinheit im geschlossenen Zustand der Feststellvorrichtung, in verschiedenen Positionen des Seitenführungsteils;
• Fig. 19 eine stirnseitige Ansicht der Seitenführungseinheit entsprechend Fig. 17 und 18, zusammen mit der zweiten Führungsschiene, wobei die verschiedenen Positionen der zweiten Führungsschiene in Abhängigkeit von den möglichen Positionen des Seitenführungsteils strichliert dargestellt sind;
• Fig. 20 einen Abschnitt der ersten Führungsschiene mit eingebauter Feststelleinheit im geöffneten Zustand der Feststellvorrichtung zusammen mit einem Abschnitt der zweiten Führungsschiene beim Anlaufen der Anschlagfläche an das Betätigungselement;
• Fig. 21 eine Darstellung der Teile von Fig. 21 aus einer anderen Blickrichtung und nach dem Verstellen des Betätigungselements in die Schließstellung;
• Fig. 22 und 23 Abschnitte der ersten Führungsschiene mit eingebauter Seitenführungseinheit im geöffneten und geschlossenen Zustand der Feststellvorrichtung;
• Fig. 24 einen Schnitt entlang der Linie BB von Fig. 22;
• Fig. 25 ein zweites Ausführungsbeispiel einer Seitenführungseinheit mit integrierten Laufrollen der Ausziehführung;
• Fig. 26 eine vereinfachte Darstellung eines Abschnitts der ersten Führungsschiene mit eingebauter Seitenführungseinheit und eines Abschnitts der zweiten Führungsschiene, in Schrägsicht, gemäß einem dritten Ausführungsbeispiels der Erfindung;
• Fig. 27 eine Draufsicht des Abschnitts der ersten Führungsschiene mit der eingebauten Seitenführungseinheit von Fig. 26;
• Fig. 28 eine Draufsicht analog Fig. 27 im geöffneten Zustand der Feststellvorrichtung;
• Fig. 29 eine Explosionsdarstellung der Seitenführungseinheit;
• Fig. 30 eine vereinfachte Darrstellung eines Abschnitts der ersten Führungsschiene mit eingebauter Seitenführungseinheit und eines Abschnitts der zweiten Führungsschiene, in Schrägsicht, gemäß einem vierten Ausführungsbeispiel der Erfindung;
• Fig. 31 eine Draufsicht des Abschnitts der ersten Führungsschiene mit eingebauter Seitenführungseinheit;
• Fig. 32 eine Draufsicht analog Fig. 31, aber im geöffneten Zustand der Feststellvorrichtung;
• Fig. 33 eine vereinfachte Darstellung eines Abschnitts der ersten Führungsschiene und der Seitenführungseinheit, in Schrägsicht;
• Fig. 34 eine Draufsicht auf einen Abschnitt der ersten Führungsschiene mit eingebauter Seitenführungseinheit, im geschlossenen Zustand der Feststellvorrichtung;
• Fig. 35 eine Explosionsdarstellung;
• Fig. 36 eine stirnseitige Ansicht der ersten und zweiten Führungsschiene (ohne Führungsrollen) gemäß einem sechsten Ausführungsbeispiel der Erfindung;
• Fig. 37 eine Schrägsicht der Seitenführungseinheit;
• Fig. 38 eine Explosionsdarstellung der Seitenführungseinheit;
• Fig. 39 eine Schrägsicht eines Abschnitts der ersten Führungsschiene (strichliert dargestellt) mit eingebauter Seitenführungseinheit im geöffneten Zustand der Feststellvorrichtung gemäß einem siebten Ausführungsbeispiel der Erfindung;
• Fig. 40 eine Schrägsicht analog Fig. 39 im geschlossenen Zustand der Feststellvorrichtung;
• Fig. 41 und 42 stirnseitige Darstellungen im geöffneten und geschlossenen Zustand der Feststellvorrichtung;
• Fig. 43 eine Seitenansicht der Seitenführungseinheit;
• Fig. 44 eine Explosionsdarstellung der Seitenführungseinheit.

Further advantages and details of the invention are explained below with reference to the accompanying drawings. In this show:

• Fig. 1 first and second extension guides for two-sided arrangement of an extendable furniture part, in oblique view, wherein one of the extension guides in the fully retracted and the other of the extension guides is shown in the partially extended state;
• Fig. 2 the two pull-out guides from Fig. 1 in the fully retracted state, wherein the base profiles of the guide rails are shown transparent and thus the rollers and side guide units are visible;
• Fig. 3 an end view of the two guide rails with schematically indicated furniture body and extendable furniture part;
• Fig. 4 one of the side guide units with disassembled guide rails;
• Fig. 5 an oblique view of the guide rails of Fig. 4 from another perspective;
• Fig. 6 an oblique view of a side guide unit;
• Fig. 7 and 8th Exploded views of the side guide unit from different directions;
• Fig. 9 a side view of a portion of the first guide rail with built-in side guide unit;
• Fig. 10 a section along the line AA of Fig. 9 ;
• FIGS. 11 and 12 Longitudinal cuts through the side guide unit in the closed and opened state of the locking device;
• FIGS. 13 and 14 Oblique views of a portion of the first guide rail with built-in side guide unit, wherein the safety device forming lever of the side guide unit is partially cut off; in the closed State of the locking device and various positions of the side guide member;
• FIGS. 15 and 16 Top views of the parts of FIGS. 13 and 14 ;
• FIGS. 17 and 18 frontal representations of the side guide unit in the closed state of the locking device, in different positions of the side guide member;
• Fig. 19 an end view of the side guide unit accordingly FIGS. 17 and 18 , together with the second guide rail, wherein the different positions of the second guide rail are shown in dotted lines in dependence on the possible positions of the side guide part;
• Fig. 20 a portion of the first guide rail with built-in locking unit in the open state of the locking device together with a portion of the second guide rail when starting the abutment surface of the actuating element;
• Fig. 21 a representation of the parts of Fig. 21 from a different direction and after the adjustment of the actuating element in the closed position;
• FIGS. 22 and 23 Sections of the first guide rail with built-in side guide unit in the open and closed state of the locking device;
• Fig. 24 a section along the line BB of Fig. 22 ;
• Fig. 25 a second embodiment of a side guide unit with integrated rollers of the pull-out;
• Fig. 26 a simplified representation of a portion of the first guide rail with built-in side guide unit and a portion of the second guide rail, in oblique view, according to a third embodiment of the invention;
• Fig. 27 a plan view of the portion of the first guide rail with the built-in side guide unit of Fig. 26 ;
• Fig. 28 a top view analog Fig. 27 in the open state of the locking device;
• Fig. 29 an exploded view of the side guide unit;
• Fig. 30 a simplified Darrstellung a portion of the first guide rail with built-in side guide unit and a portion of the second guide rail, in oblique view, according to a fourth embodiment of the invention;
• Fig. 31 a plan view of the portion of the first guide rail with built-in side guide unit;
• Fig. 32 a top view analog Fig. 31 but in the open state of the locking device;
• Fig. 33 a simplified representation of a portion of the first guide rail and the side guide unit, in oblique view;
• Fig. 34 a plan view of a portion of the first guide rail with built-in side guide unit, in the closed state of the locking device;
• Fig. 35 an exploded view;
• Fig. 36 an end view of the first and second guide rail (without guide rollers) according to a sixth embodiment of the invention;
• Fig. 37 an oblique view of the side guide unit;
• Fig. 38 an exploded view of the side guide unit;
• Fig. 39 an oblique view of a portion of the first guide rail (shown in phantom) with built-in side guide unit in the open state of the locking device according to a seventh embodiment of the invention;
• Fig. 40 an oblique view analog Fig. 39 in the closed state of the locking device;
• FIGS. 41 and 42 frontal representations in the open and closed state of the locking device;
• Fig. 43 a side view of the side guide unit;
• Fig. 44 an exploded view of the side guide unit.

The figures have different scales.

A first embodiment of the invention is in the Fig. 1 to 24 shown. The pull-out guides are shown simplified. In particular, stops for limiting the extension and insertion are omitted.

On a pull-out furniture part 1, of which only in Fig. 3 a section is indicated schematically, are on both sides pull-out 3, 4 for taking out the pull-out furniture part 1 from a furniture body 2, of which also only in Fig. 3 a section is shown schematically arranged. The pull-out of the pull-out furniture part 1 takes place in a pull-5, the insertion into the furniture body 2 against the pull-out 5. For example, it may be the pull-out furniture part 1 to a drawer.

The pull-out guides 3, 4 arranged on both sides of the pull-out furniture part 1 are spaced apart from one another in a transverse direction 50 perpendicular to the pull-out direction 5. The transverse direction 50 in the exemplary embodiment is horizontal with respect to the operating position of the pull-out guide.

The transverse direction 50 is shown in the figures as a double arrow. If in this document a transverse direction 50 or the transverse direction 50 is mentioned, this refers to one of the two directions of this double arrow.

The pull-out guides 3, 4 arranged on both sides of the pull-out furniture part 1 are mirror-inverted in the exemplary embodiment. The training could not be or not completely mirror-symmetrical.

The movement of the pull-out furniture part 1 when pulling out is at least substantially linear, which can be done to compensate for subsidence by bending of guide rails under load and / or for generating a gravitational force a slightly curved deviation of the linear movement of the rails.

A respective pull-out guide 3, 4 comprises a body-fixed guide rail 6 to be fastened to the furniture body 2, a first guide rail 7 mounted displaceably relative to the body-fixed guide rail 6 in and against the pull-out direction, and a guide rail 7 opposite the first guide rail 7 In the exemplary embodiment, the first guide rail 7 is thus a middle rail of the pull-out guide and, in the case of the second guide rail 8, a drawer rail to be fastened to the pull-out furniture part 1.

In the exemplary embodiment, the pull-out guide is designed in the form of a roll pull-out. In role extracts, the guide rails are guided against each other by means of at least one of the guide rails about axes rotatably mounted rollers. These rollers are thus load transmitting rollers, i. a part of the weight of the pull-out furniture part 1 is transmitted from the respective roller. In particular, the rollers are rotatably mounted about horizontal axes.

Specifically, a differential extract is shown in the figures, in which all rollers 9-12 are rotatably mounted on a base profile 13 of the center rail. In the case of differential extensions, when the pull-out guide is pulled out, a synchronous movement of the guide rails occurs, with the middle rail moving at half the speed of the loading rail. However, the invention is not limited to this particular type of pull-out guides. For example, the invention could also be used with roller extensions in the manner of telescopic extensions, in which the loading and center rails are pulled out one after the other. The invention could also be used with pull-out guides other than roller pull-outs. For example, the pull-out guide could be in the form of a ball pullout or generally in the form of an extract with rolling elements arranged in carriages which are displaceable relative to the guide rails. Likewise, use in mixed training (with both rotatably mounted on the rails rollers and arranged in carriage rolling elements) is possible.

The possible arrangements of the rollers 9-12 and the cooperating with them tracks of the guide rails is thus not explained in detail at this point. It should only be mentioned that in the shown Training in the form of a differential extension in the central region of the middle rail forming the first guide rail 7, a roller 12 is rotatably supported with play on the first guide rail 7, which runs between tracks of the first guide rail 7 and the corpusfesten guide rail 6 and a load directly from the first guide rail 7 transmits to the corpus fixed guide rail 6. This roller 12 is also referred to as a differential role.

At the base profile 13 of the first guide rail 7 of the respective extension guide two spaced in the withdrawal direction 5 side guide units 14 are held. A respective side guide unit 14 has a lateral guide part 15 designed in the form of a roller. The trained as a roller side guide member 15 is rotatably mounted about an axis 16 on a support member 17 of the side guide unit 14. The axis 16 is oriented at right angles to the withdrawal direction 5 and at right angles to the transverse direction 50, in the exemplary embodiment vertically.

The side guide units 14 are held in the embodiment in a U-shaped portion of the base profile 13 of the first guide rail 7. Other embodiments of the first guide rail and / or other arrangements of the side guide units 14 are conceivable and possible in other embodiments.

The support member 17 is formed in the embodiment in the manner of an eccentric. For this purpose, it is rotatably arranged about an axis of rotation 18 and the axis 16 has a distance from the axis of rotation 18. Upon rotation of the support member 17 about the axis of rotation 18, the position of the axis 16 and thus the position of the side guide member 15 with respect to the transverse direction 50 is adjusted.

A respective side guide unit 14 has a locking device 19 which can be opened and closed. In the open state of the locking device 19, the support member 17 can be rotated about the axis of rotation 18. In the closed state of the locking device 19, the rotational position of Support member 17 fixed relative to the axis of rotation 18 and thus the position of the side guide member 15 with respect to the transverse direction 50 detected.

The locking device 19 has a clamping part 20, which is mounted pivotably about a pivot axis 21 in the exemplary embodiment on the base profile 13 of the first guide rail 7. For example, for this purpose, an axle pin 22 in holes in opposite webs of the U-shaped portion of the base profile 13, in which the side guide unit 14 is arranged to be used.

On the clamping part 20, an actuating element 23 is mounted in the form of a lever, with which the clamping part 20 can be pivoted about the pivot axis 21. In the (relative to the pull-5) front of the two attached to the base profile 13 of a respective first guide rail 7 side guide units 14, a further lever 24 is mounted in the embodiment also on the clamping member 20, the function will be explained below. In the laterally arranged side guide unit 14, this additional lever 24 can be omitted. Otherwise, the front and the rear side guide unit 14 are formed the same. One of the front side guide units 14 is in particular in the Fig. 6-8 . 11-12 and 20-21 shown in detail. In the FIGS. 9 and 10 the arrangement of one of the rear side guide units 14 is shown, wherein the arrangement of the respective front side guide unit 14 is completely analog.

When the actuating element 23 is moved from an open position (cf. Fig. 6 and Fig. 20 ) in a closed position (see in particular Fig. 13-15 and Fig. 21 ) is adjusted, in the exemplary embodiment is thus pivoted about the pivot axis 21, so come engagement surfaces 25, 26 of the clamping member 20 and support member 17 which are spaced from each other in the open position of the actuating element 23, into engagement. For example, the engagement surfaces 25, 26 may be formed in the form of gears or corrugations.

Im in the Fig. 1 to 24 illustrated embodiment, the locking device 19 further comprises a counter-clamping part 27. This is relative to the base profile 13 parallel to the withdrawal direction 5 displaced. When adjusting the actuating element 23 from the open position into the closed position, a cam 28 of the clamping part 20 (in FIG Fig. 6-8 designated) on the counter-clamping part 27 and moves the counter-clamping part 27 relative to the base profile 13 of the first guide rail 7 to press it to the support member 17 on the opposite side of the clamping member 20. The support member 17 is thus clamped in the closed state of the locking device 19 between the clamping member 20 and the counter clamping member 27. The clamping forces do not have to be transmitted via the base profile 13 of the first guide rail 7.

When opening the locking device 19 pushes a cam 29 (see FIG. FIGS. 11 and 12 ) of the clamping part 20, the counter-clamping part 27 in the opposite direction as when closing the locking device, see. Fig. 12 ,

The holder of the counter-clamping part 27 in the base profile 13 takes place in the exemplary embodiment by means of knobs 13a of the base profile, which engage in recesses 27a of the counter-clamping part 27.

For rotatable mounting of the support member 17 about the axis of rotation 18 projects in the embodiment, a pin 17a of the support member 17 through a slot 27b of the counter-clamping member 27 in an opening in the base profile thirteenth

As in particular from Fig. 3 can be seen, a respective side guide member 15 cooperates with two side guide surfaces 30, 31 of the second guide rail 8, seen in an end view (parallel to the withdrawal direction 5) on both sides of the side guide member 15. The side guide surfaces 30, 31 are thus spaced apart in the transverse direction 50. The distance in the transverse direction here is slightly larger than the diameter of the side guide member 15, for example by 0.05mm - 0.3mm larger. The side guide surfaces 30, 31 extend in a direction parallel to the extension 5 longitudinal direction. Preferably, the Side guide surfaces 30, 31 formed flat and lie in a direction parallel to the withdrawal direction 5 level. The side guide surfaces 30, 31 may be parallel to each other or at an angle to each other (based on a frontal view parallel to the withdrawal direction 5), which is not greater than 60 °, more preferably not greater than 20 °. An advantageous angle may be in the range of 2 ° to 20 °.

The roller forming the side guide member 15 may be executed on its circumference in particular cambered, cylindrical, conical or preferably conical crowned.

The side guide surfaces 30, 31 are formed in the embodiment shown by the opposite legs of a U-shaped portion of the second guide rail 8. The U-shaped portion is in this case downwardly open and the base web of the U-shaped portion forms on its underside favorably a running surface for at least one roller of the pull-out guide, in the exemplary embodiment of the rollers 9, 12th

When the side guide member 15 is adjusted in its position with respect to the transverse direction 50, the second guide rail 8 is taken along, since the side guide member 15 cooperates with the side guide surfaces 30, 31 arranged on both sides, in both transverse directions 50, or in other words the two opposite directions parallel to the transverse direction 50. In Fig. 19 the various entrained positions of the second guide rail 8 in dependence on the position of the side guide member 15 with respect to the transverse direction 50 are shown. The second guide rail 8 has in the respective position only a slight play in the two transverse directions 50, corresponding to the clearance between the side guide part 15 and the two side guide surfaces 30, 31 with respect to the transverse direction 50.

As already mentioned, this slight play in the two transverse directions 50 over at least 50% of Ausziehweges, preferably over at least 80% of Ausziehweges ago. Especially following the complete When the extension guide is slid in, a portion of the extension path can be formed with a greater clearance between the side guide member 15 and the side guide surfaces 30, 31 or the at least one of the side guide surfaces 30, 31 or both side guide surfaces 30, 31 can be removed in this portion of the extension path.

The Fig. 13, 15 and 17 show the center position of the side guide member 15 and the Fig. 14, 16 and 18 show with respect to the transverse direction 50, by contrast, by .DELTA.x adjusted position of the side guide member 15th

The pull-out guides 3, 4 are formed with only a slight lateral play (= clearance relative to the transverse direction 50) between the body-fixed guide rail 6 and the first guide rail 7. Preferably, this clearance is less than 0.5mm, more preferably less than 0.2mm. By mutually prestressed elements, the guide between the body-fixed guide rail 6 and the first guide rail 7 may be formed completely free of play.

When mounting the pull-out furniture part 1 in the furniture body 2, the corpus-fixed guide rails 6 are first mounted on the furniture body 2. The first guide rails 7 are in this case already inserted into the body-fixed guide rails 6 or are used in the sequence in this. The second guide rails 8 are mounted in the separated from the first guide rails 7 state on the extendable furniture part 1. As a result, the second guide rails 8 mounted on the extendable furniture part 1 are inserted into the first guide rail 7 in the opened state of the locking devices 19 of the side guide units 14. Here, the side guide members 15 are retracted between the side guide surfaces 30, 31. Depending on the actual dimensions present in the respective case, the lateral guide parts 50 automatically adjust in their positions with respect to the transverse direction 50 through the cooperation with the lateral guide surfaces 30, 31. After closing the locking devices 19, the positions of the side guide members 15 are relative to the transverse direction 50 fixed. Due to the small existing clearance between the side guide members 15 and the side guide surfaces 30, 31 and between the body-fixed guide rail 6 and the first guide rail 7, there is a total of a very small present game of pull-out guides 3, 4 relative to the transverse direction 50th

The closing of the locking device 19 of the respective side guide unit 14 is preferably carried out automatically when first inserting the second guide rail 8 in the first guide rail 7. This closing the locking device 19 is in the FIGS. 20 and 21 shown. When inserting the second guide rail 8 against the withdrawal direction 5 runs a, in the embodiment on a punched out of the base profile of the second guide rail 8 and bent tabs 32 arranged abutment surface 33 to the actuating element formed as a lever 23 of the locking device 19, see. Fig. 20 , Upon further insertion of the actuating element 23 forming lever is pivoted by the pressure exerted by the stop surface 33 on him from its open position to its closed position. When the closed position of the actuating element 23 is reached, the stop surface 33 is disengaged from the actuating element 23 and the flap 32 can be moved over the actuating element 23, cf. Fig. 21 ,

The stop surface 33 could also be formed in a different manner, for example, be arranged on a fixed to the base profile of the second guide rail 8 part.

Instead of a trained as a lever actuator 23, depending on the design of the locking device 19, also another actuator 23 may be provided, for example, a linearly displaceable between an open position and a closed position actuator.

In the exemplary embodiment, at the front of the two side guide units 14, which has the first guide rail 7 of the respective pull-out guide 3, 4, on Clamping part 20, a further lever 24 is mounted, which is also pivoted about the pivot axis 21 during the pivoting of the actuating element 23 about the pivot axis 21. In the closed position of the actuating element 23, that is in the closed state of the locking device 19, takes an adjoining the free end of the lever 24 end portion, which is angled relative to the remaining lever 24 in a direction parallel to the transverse direction 50, a position in which he acts as a safety catch for the second guide rail 8. The angled end portion of the lever 24 is in this position so close to the base profile of the second guide rail 8 that it can not be raised so far that a (not shown in the figures) stop on the rollers 9-12 of the first guide rail 7 can be passed.

In the closed position of the actuating element 23, a latching portion of the lever 24 is snapped into a recess 34 of the first guide rail 7 in the embodiment, which is bounded by a latching projection 35, see. Fig. 23 , During the adjustment of the actuating element 23 from the open position into the closed position, the latching projection 35 can be moved away from the latching section of the lever 24 by means of an inlet bevel 36 (cf. Fig. 24 ) are run over. The safety catch is thereby fixed. When the second guide rail 8 is to be taken out, the latching portion of the lever 24 is pressed in and guided over the latching projection 35 into the latching recess 37.

A safety catch for the second guide rail 8 could also be formed in other ways than by a lever 24 attached to the clamping part 20, for example by a part independent of the lateral guide unit 14. The lever 24 can then be omitted. On the other hand, in the rear side guide units 14, a lever 24 may be present without a parallel to the transverse direction 50 angled end portion which is snapped in the closed position analogous to the lever 24 in a recess 34 of the first guide rail 7 and described in an analogous manner as the lever 24 can be opened. This allows the closed state of Locking device to be secured. If the front side guide units 14 should not simultaneously act as a safety catch, the lever 24 may be formed in this manner.

Also, the actuator 23 could be formed simultaneously as a safety catch.

In the open state of the locking device 19, the side guide member 15, when no external force acts on the side guide member 15, held by a spring 38 in a central position with respect to its possible adjustment in the transverse direction 50. For this purpose, the spring 38 has first and second spring legs 38a, 38b, which rest on the support part 17 on both sides relative to the transverse direction 50. The two spring legs 38a, 38b are interconnected by a U-shaped section 38c. The spring 38 is held on the counter-clamping part 27.

The side guide member 15 could be held by at least one spring in a different starting position than the middle position of the possible adjustment in the transverse direction 50.

If arranged on both sides of the extendable furniture part 1 pull-3, 4 each have at least one side guide unit 14 with a side guide member 15 which is held in the open state of the locking device 19 by at least one spring 38 in a central position, then the extendable furniture part 1 during insertion the second guide rail 8 in the first guide rail 7 automatically in a middle position to the furniture body 2, based on the transverse direction 50, set. The user can also achieve an eccentric position of the pull-out furniture part 1 by a lateral pressure exerted during insertion.

In an advantageous embodiment of the invention, a respective pull-out guide 3, 4, as already described, at least two side guide units 14, which are formed in the manner described and which are arranged with respect to the pull-5 from each other spaced from each other on the first guide rail 7. In the exemplary embodiment, each pull-out guide 3, 4 has a side guide unit 14 arranged in the region of the front end (with respect to the pull-out direction 5) and a side guide unit 14 arranged in a middle section of the first guide rail 7, cf. especially Fig. 2 ,

It would also be conceivable and possible, however, to arrange only one side guide unit 14 or more than two side guide units 14 in a respective pull-out guide 3, 4. The pull-out guides 3, 4 could also have different numbers of side guide units. For example, one of the pull-out guides 3, 4 could have only one side guide unit 14 and the other of the pull-out guides 3, 4 could have two or more side guide units 14.

It could also be provided that only one of the pull-out guides 3, 4 has one, two or more than two lateral guide units 14.

Although an interaction of a respective side guide member 15 with lying on both sides of the side guide member 15 side guide surfaces 30, 31 is preferred, such training is not mandatory. For example, the side guide part 15 of the at least one side guide unit 14 of a pull-out guide 3 could cooperate only with a side guide surface 30 which limits play of the second guide rail 8 with respect to the first guide rail 7 in a first direction parallel to the transverse direction 50, and the side guide part 15 of the at least one Side guide unit 14 of arranged on the other side of the pull-out furniture part 1 other pull-4 cooperate with a side guide surface 31 which limits a game of the second guide rail 8 relative to the first guide rail 7 in the opposite direction parallel to the transverse direction 50. Advantageously, the side guide members are in this case in the open state of the locking device and without an external force acting on the respective side guide part by at least one spring in one Main position held in which they are adjusted with respect to their position in the transverse direction 50 farthest in the direction in which the cooperating side guide surface 30, 31 is located.

In the embodiment described above, the support member 17 is formed in the form of an eccentric. Instead, the support member 17 could for example be mounted linearly displaceable parallel to the transverse direction 50, wherein such a displacement in the open state of the locking device 19 is possible and the support member 17 is clamped in the closed state of the locking device 19 in its adjusted displacement position.

For opening and closing a locking device 19, a clamping part 20 could also be pivoted about an axis other than an axis lying parallel to the transverse direction 50. Also, a linear displacement of a clamping member could be provided for opening and closing a locking device.

The first guide rail, which has the at least one side guide unit 14, could also be the extendable guide rail (which is also referred to as a drawer rail) to be attached to the extendable furniture part 1. The second guide rail having the at least one side guide surface could then be the middle rail. The design is reversed with respect to the arrangement of the side guide units 14 and side guide surfaces 30, 31 so to the arrangement described above.

However, the invention can also be used in extension guides with only two guide rails. One of the two guide rails, ie the body-fixed guide rail or the extendable from this guide rail would then have at least one side guide unit 14 and thus represent the first guide rail according to the notation of the present document, while the other of the two guide rails would have at least one side guide surface and thus the second guide rail would represent.

The following are based on the FIGS. 25 to 44 modified embodiments described. The differences to the basis of the Fig. 1 to 24 described embodiment are each explained. Apart from the differences described, the construction is similar to that of the first embodiment, and the description in connection with the first embodiment is also applicable, including the described possible modifications. For identical or at least analog parts, in particular the same reference numerals have been used and reference numerals used in the description which are incorporated in the FIGS. 25 to 44 are not drawn, refer to the analog parts that are in the Fig. 1 to 24 are designated.

At the in Fig. 25 Casters 9 ', 9 "are integrated into the side guide unit 14. It can in particular be a lateral guide unit 14 arranged in the region of the front end of the first guide rail 7. In a region of the first guide rail further to the rear, a lateral guide unit can also be provided 14 without integrated rollers The rollers 9 ', 9 "are load-transmitting rollers, ie a part of the weight of the extendable furniture part 1 is transmitted by these. In particular, the rollers 9 ', 9 "are rotatably mounted about horizontal axes.

For rotatably supporting the rollers 9 ', 9 "is a bearing portion 39 of the side guide unit 14, which is formed here in one piece with the counter-clamping part 27.

The actuating element 23 shown in the first embodiment, which serves to close the locking device 19 by starting the abutment surface 33 of the second guide rail 8 during insertion of the second guide rail 8 is not present here and as an actuating element for opening and closing the locking device 19 is here the lever 24th An additional lever corresponding to the actuating element 23 of the first exemplary embodiment could, however, again to be available. Conversely, in the first embodiment, the actuator 27 could also be omitted and the lever 24 form an actuating element for opening and closing the locking device.

In Fig. 25 further protruding ridges 40, 41 of the bearing portion 39 are shown, which engage in recesses in the base profile 13 of the first guide rail 7. When opening and closing the locking device 19, in turn, a displacement of the counter-clamping part 27, here together with the bearing portion 39, relative to the base profile 13 of the first guide rail 7 parallel to the pull-5.

A third embodiment of the invention is in the FIGS. 26 to 29 shown. The support member 17, which carries the side guide member 15 (preferably, the side guide member 15 is again a rotatably supported by the support member 17 about an axis 16), here is pivotally mounted by a bearing member 42 about a pivot axis 43. For example, an axle pin 44 of the bearing part 42 engages in an axle recess 45 of the support part 17 for this purpose. The pivot axis 43 is in particular vertical.

The bearing part 42 is rigidly connected by means not shown fastening means with the base profile 13 of the first guide rail 7.

At a front end (with respect to the pull-5), the support member 17 has an engagement surface 25 which cooperates with the engagement surface 26 of a clamping member 20 in the closed state of the locking device. The engagement surfaces 25, 26 may in particular be toothings or corrugations.

To open and close the locking device, the clamping member 20 is moved parallel to the withdrawal direction 5 relative to the bearing member 42 in this embodiment. For displaceable guidance of the clamping part 20, a guide projection 46 of the bearing part 42 is shown, which in a recess of the Clamping part 20 engages. The means for adjusting the clamping member 20 relative to the bearing member 42 for opening and closing the locking device 19 are not shown here for the sake of simplicity.

For example, could be provided as a pivotable about a horizontal axis with a lever engaging in a recess of the clamping member 20 cam as an actuating element.

Another possible configuration could be that a spring is provided which biases the clamping member 20 in the position in which the engagement surfaces 25, 26 are engaged (not shown in the figures). To open the locking device, an actuator could move the clamping member 20 against the force of this spring, so that the engagement surfaces 25, 26 are spaced apart. For example, the actuating element could have a stop surface which, when the second guide rail 8 is inserted, starts against a stop surface provided on the second guide rail. As a result, the locking device 19 could be automatically opened when retracting the side guide member 15 between the preferably on both sides of the second guide member 15 side guide surfaces 30, 31, wherein the further insertion of the second guide rail 8, the clamping member 20 is released again and the locking device 19 closes automatically. Such a design could also be provided in all other described embodiments.

In order to keep the clamping member 20 in the open state of the locking device 19, when no external force acts on the clamping member 20 in a preferably centrally located starting position, springs 38 are provided here in the form of helical springs. These protrude in both sides on the clamping part 20 arranged blind holes and are based on the base profile 13 of the first guide rail 7 from. The at least one spring provided to hold the clamping member 20 in the initial position, could also be designed or arranged differently.

A fourth embodiment of the invention is in the FIGS. 30 to 32 shown in simplified form. The support member 17 is formed here again in the form of an eccentric, similar to the first embodiment. This eccentric is by an engaging in the base profile 13 of the first guide rail 7 axle pin (not visible in Fig. 30-32 ) rotatably supported about a vertical pivot axis 21. With the circumferential surface of the eccentric acting as an engagement surface 25, the engagement surface 26 of the clamping part 20 cooperates in the closed state of the locking device. To open and close the locking device 19, the clamping member 20 is analogous as in the third embodiment relative to the base profile 13 of the first guide rail 7 parallel to the withdrawal direction 5 slidably. The displaceable mounting of the clamping part 20 is not shown in detail. With regard to the adjustment of the clamping member 20 relative to the support member 17 to open and close the locking device 19, reference is made to the description of the third embodiment.

The engagement surfaces 25, 26 are formed here by a plastic having a high coefficient of friction. The determination of the support member 17 in the closed state of the locking device 19 is frictionally engaged.

In the case of the other exemplary embodiments described, too, a frictional locking of the clamping part 20 could be provided in the closed state of the locking device. Conversely, could be provided in the fourth embodiment, a positive determination of the clamping member 20 in the closed state of the locking device. Also frictionally engaged as well as positively engaging surfaces 25, 26 are conceivable and possible.

A fifth embodiment of the invention is in the FIGS. 33 to 35 shown. The support member 17 is again formed in the form of an eccentric. This is rotatably mounted here on a bearing part 47 about the axis of rotation 18. The rotation axis 18 in turn is in particular vertical. The bearing part 47 can be used to open and close the locking device parallel to the withdrawal direction 5 with respect to the Base profile 13 of the first guide rail 7 are moved. The serving for the displacement of the bearing part 47 parts are again not shown for the sake of simplicity. The displacement can be accomplished analogously as the displacement of the bearing part 42 in the third embodiment and the description there is referenced.

In the closed state of the locking device 19 here the engagement surface 25 of the support member 17 is pressed against edges of webs 48, 49 of the base profile 13 of the first guide rail 7. These edges are formed by recesses in the webs 48, 49 and the surfaces of the webs 48, 49 in the region of these edges form with the engaging surface 25 of the support member 17 cooperating engagement surfaces for detecting the support member 17 in the closed state of the locking device 19. A separate clamping part thus omitted in this embodiment. For clamping of the support member 17 in the closed state of the locking device this cooperates with clamping portions of the base profile 13 of the first guide rail 7, which are formed by portions of the webs 48, 49 in the region of said edges. Such clamping portions of the base profile 13 could also be formed differently in detail, for example, by deformed portions of the webs 48, 49th

In order to hold the side guide member 15 carried by the support member 17 in the open state of the locking device 19 without acting external force in a, preferably middle, initial position, a spring 38 with a slide 51 attached thereto, which serves in the starting position of the side guide member 15 in a trough of Support member 17 presses. Upon rotation of the support member 17, the slider 51 is more or less moved out of the trough and slides along adjoining the trough portions of the surface of the support member 17, wherein the spring 38 is increasingly compressed with increasing rotation of the support member 17.

A sixth embodiment of the invention is in the FIGS. 36 to 38 shown. The support member 17 is again formed as an eccentric. When opening and closing the Locking device 19, this is adjusted in a direction perpendicular to the transverse direction 50 and perpendicular to the direction of withdrawal 5 direction, in the embodiment in the vertical direction to engagement surfaces 25, 26 of the support member 17 and a clamping portion 52 of the base profile 13 of the first guide rail 7 in the closed state of the locking device 19th to be engaged and in the open state of the locking device 19 to space. The clamping portion 52 is formed by forming a portion of the base profile 13. Instead, it could also be provided on the base profile 13 fixed clamping part.

For displacement of the support member 17 during opening and closing of the locking device 19 is a control part 53, on which the formed in the form of a lever actuator 23 is arranged. The actuating part 53 has at least one helical surface 54, which cooperates with a helical surface 55 of a guide part 57. The helical surfaces 54, 55 extend around the pivot axis 56 about which the actuator 53 is rotated by means of the actuator 23 for opening and closing the locking device 19. The guide member 57 is relative to the base profile 13 in the direction in which the support member 17 is moved when opening and closing the locking device 19, slidably mounted relative to the base profile 13 and supports the support member 17 rotatable about the pivot axis 56. For pivotally mounting the support member 17th around the pivot axis 56, for example, a bearing journal of the support member 17 engage in a bearing recess of the guide member 57.

The support member 17 could enforce the guide member 57 and the screw surface 55 could be arranged on the support member 17.

An adjustment of the support member 17 in a direction perpendicular to the withdrawal direction 5 and perpendicular to the transverse direction 50 for opening and closing the locking device could for example also be effected by a parallel in the base profile 13 to the withdrawal direction 5 guided control part, which has an inclined surface for displacement of the support member 17 ,

A spring, by means of which the side guide member 15 is held in the open state of the locking device 19 and no external force acting in an initial position is in the FIGS. 36 to 38 not shown, but could be provided again.

A seventh embodiment of the invention is in the FIGS. 39 to 44 shown. The support member 17 is again formed as an eccentric and when opening and closing the locking device 19, an adjustment of the support member 17 in a direction perpendicular to the transverse direction 50 and perpendicular to the withdrawal direction 5 direction, in particular as shown in the embodiment, in height. The adjustment takes place here by means of an actuating part 58, which is rotatable by means of an actuating element 23 designed as a lever about a pivot axis 59 lying parallel to the transverse direction 50. The adjusting part 58 has a cam which cooperates with a bearing part 60 which rotatably supports the supporting part 17 about its axis of rotation 18. The bearing member 60 is slidably guided relative to the base profile 13 of the first guide rail 7 in the direction in which the support member 17 is to be adjusted when opening and closing the locking device 19. Serve this purpose guide pins 61 which are fixed to the base profile 13 and engage in guide recesses of the bearing part 60.

The engaging in the closed state of the locking device 19 engaging surfaces 25, 26 may be formed in an analogous manner as described in the sixth embodiment.

In all the described embodiments, it would be conceivable and possible to use a sliding part as side guide part 15 instead of a roller, which interacts with the at least one lateral guide surface, preferably lateral guide surfaces 30, 31 lying on both sides of the sliding part.

Trained in accordance with the invention extendable guides can also be used to pull out other extendable furniture parts as drawers or specially adapted for this purpose, for example, to pull out trays, tall cabinet extensions, etc.

In many applications, the withdrawal direction 5 will be horizontal or at least substantially horizontal (at least substantially horizontal in this case is to include deviations of +/- 10 ° relative to the horizontal). But other Ausziehrichtungen are possible. For example, in the case of a plate dispenser for gastronomy, the pull-out direction is vertical (the pull-out may be effected or supported by a spring device).

In many applications, a use of extending in the transverse direction 50 extending guides will be provided further, which are arranged on both sides of the extendable furniture part 1, wherein the transverse direction 50 is particularly horizontal. In principle, however, applications are conceivable and possible in which one or more extension guides are arranged only on one side on the extendable furniture part 1. Also in connection with such pull-out guides, the invention can be used.

The term "furniture" is widely understood in this document. For example, tool cabinets also fall under this term. Likewise, "body" is widely understood, in the sense of a supporting part of the furniture, which may be closed or more or less open, for example, in the form of a frame. Legend to the reference numbers: 1 extendable furniture part 27 Against clamping part 2 furniture body 27a deepening 3 pull-out 27b Long hole 4 pull-out 28 cam 5 pull-out 29 cam 6 corpus fixed guide rail 30 Side guide surface 7 first guide rail 31 Side guide surface 8th second guide rail 32 cloth 9, 9 ', 9 " caster 33 stop surface 10 caster 34 recess 11 caster 35 catch projection 12 caster 36 run-in slope 13 basic profile 37 recess 13a burl 38 feather 14 Side guide unit 38a spring leg 15 Side guide part 38b spring leg 16 axis 38c U-shaped section 17 supporting part 39 bearing section 17a spigot 40 web 18 axis of rotation 41 web 19 Locking device 42 bearing part 20 clamping part 43 swivel axis 21 swivel axis 44 axle pin 22 axle pin 45 Achsausnehmung 23 actuator 46 guide projection 24 lever 47 bearing part 25 engaging surface 48 web 26 engaging surface 49 web 50 transversely 51 slide 52 clamping section 53 lever 54 helicoid 55 helicoid 56 swivel axis 57 guide part 58 adjusting part 59 swivel axis 60 bearing part 61 guide pin

Claims (15)

1. Pull-out guide for pulling a pull-out furniture part (1) out of a basic furniture structure (2) in a pull-out direction (5) and for pushing the pull-out furniture part (1) into the basic furniture structure (2) counter to the pull-out direction (5), comprising at least a first and a second guide rail (7, 8), which are displaceable relative to one another in and counter to the pull-out direction (5), wherein the first guide rail (7) has a basic profile (13) and at least one lateral-guidance unit (14), which is retained on the basic profile (13), wherein the lateral-guidance part (15), in order to limit an amount of play of the second guide rail (8) in relation to the first guide rail (7) in at least a transverse direction (50) extending at right angles to the pull-out direction (5), interacts with at least one lateral-guidance surface (30, 31) of the second guide rail (8), and the position of the lateral-guidance part (15) is adjustable with reference to the transverse direction (50) in relation to the basic profile (13) of the first guide rail (7), characterised in that the lateral-guidance unit (14) has an openable and closeable locking device (19), wherein in an open state of the locking device (19), the position of the lateral-guidance part (15) with reference to the transverse direction (50) is adjustable in relation to the basic profile (13) of the first guide rail (7) by a pressure acting on the lateral-guidance part (15) parallel to the transverse direction (50), and in a closed state of the locking device (19), the position of the lateral-guidance part (15) with reference to the transverse direction (50) is fixed.
2. Pull-out guide according to claim 1, characterised in that the second guide rail (8) has lateral-guidance surfaces (30, 31) which are located on opposite sides of the lateral-guidance part (15) and with which the lateral-guidance part (15) interacts in order to limit an amount of play of the second guide rail (8) in relation to the first guide rail (7) in opposite transverse directions (50) extending at right angles to the pull-out direction (5).
3. Pull-out guide according to claim 2, characterised in that the lateral-guidance surfaces (30, 31), which are located on opposite sides of the lateral-guidance part (15), are formed by a portion of the second guide rail (8) which is U-shaped with reference to the pull-out direction (5).
4. Pull-out guide according to one of claims 1 to 3, characterised in that, in the closed state of the locking device (19), a carrying part (17), which carries the lateral-guidance part (15), is braced with a clamping part (20) of the lateral-guidance unit (14) or with a clamping portion of the basic profile (13) of the first guide rail (7).
5. Pull-out guide according to claim 4, characterised in that the lateral-guidance part (15) is in the form of a roller which is mounted by the carrying part (17) to be rotatable about an axis (16).
6. Pull-out guide according to claim 4 or 5, characterised in that the carrying part (17) is in the form of an eccentric.
7. Pull-out guide according to one of claims 1 to 6, characterised in that the locking device (19) has at least one actuating element (23), preferably in the form of a lever pivotable about a pivot axis (21), which element can be adjusted between an open position and a closed position in order to open and/or close the locking device (19).
8. Pull-out guide according to claim 7, characterised in that, upon the pull-out guide (3, 4) being pushed together from a pulled-out state into a pushed-in state, a stop surface (33) of the second guide rail (8) runs onto the actuating element (23), which is located in the open position, and adjusts the actuating element (23) into the closed position.
9. Pull-out guide according to claim 7 or 8, characterised in that the actuating element (23), in the form of a lever pivotable about a pivot axis (21), or a further lever (24), which is pivoted along with the actuating element (23) when the latter is pivoted, forms a disengagement-prevention device for the second guide rail (8).
10. Pull-out guide according to one of claims 1 to 9, characterised in that in the open state of the locking device (19), and without an external force acting on the lateral-guidance part (15), the lateral-guidance part (15) is retained in a starting position by at least one spring (38).
11. Pull-out guide according to claim 10, characterised in that spring legs (38a, 38b) of the at least one spring (38) butt against opposite sides of the carrying part (17) and, upon displacement of the lateral-guidance part (15) in one of the transverse directions (50), force the carrying part (17) in such a direction as to restore the lateral-guidance part (50) into a starting position thereof.
12. Pull-out guide according to one of claims 1 to 11, characterised in that the first guide rail (7, 8) has at least two lateral guidance units (14), which are spaced apart from one another with reference to the pull-out direction (5).
13. Pull-out guide according to one of claims 1 to 12, characterised in that the first guide rail (7) forms a centre rail of the pull-out guide (3, 4), and said centre rail is displaceably guided in and counter to the pull-out direction (5) in relation to a basic-structure rail of the pull-out guide (3, 4), said basic-structure rail being able to be fitted on the basic furniture structure (2), and in that the second guide rail (8) is a pull-out rail that is able to be fitted on the pull-out furniture part (1) and is displaceably guided in and counter to the pull-out direction (5) in relation to the centre rail.
14. Apparatus for pulling a pull-out furniture part (1) out of a basic furniture structure (2), characterised in that the apparatus has first and second pull-out guides (3, 4) according to one of claims 1 to 13.
15. Apparatus according to claim 14, characterised in that the first and second pull-out guides (3, 4) are spaced apart from one another with reference to the transverse direction (50).

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