• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a pull-out with a on a furniture body (2) attachable carcass rail (4) fastened to a pull-out furniture part (1) pull-out rail (6) and between the carcass rail (4) and the pull-out rail (6) arranged center rail (5) at least the pull-out rail (6) relative to the central rail (5) by means of at least one of the rails rotatably mounted rollers (12- 17) displaceably guided. The carcass rail (4) has a first toothed rack profile (30) and the puller rail (6) has a second toothed rack profile (31) and a gear unit (34) having at least one toothed wheel (35, 36) is arranged on the center rail (5) for positively controlling a synchronous operation of the rails when pulling out the pull-out rail (6) in a pull-out direction (3) and inserting the pull-out rail (6) against the pull-out direction (3) with the first rack profile (30) and the second rack profile (31) is in meshing engagement. At least a portion (46) of the longitudinal extent of one of the rack profiles (30, 31) is elastically deflectable from a basic position into a release position, in which the tooth engagement with the gear unit (34) is canceled.
    公开号:AT516222A1
    申请号:T656/2014
    申请日:2014-08-25
    公开日:2016-03-15
    发明作者:Günter Bonat
    申请人:Fulterer Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a pull-out guide having a cabinet rail attachable to a furniture body, a pull-out rail attachable to a pull-out furniture piece, and a center rail disposed between the carcass rail and the pull-out rail, the rails being slidably displaced relative to each other, and at least the puller rail rotatably mounted to the center rail by means of at least one of the rails Casters is slidably guided. For pull-out guides for extracting pull-out furniture parts, in particular drawers, there are different embodiments. Usually, pull-out guides which are more or less mirror-inverted are arranged on both sides of the pull-out furniture part.
    In roller extension guides, rollers for displacing the rails are rotatably mounted on the rails about (at least substantially) fixedly spaced therefrom. Various embodiments of roller pull-out guides are known. In conventional telescopic extension guides on all rails load-bearing rollers are rotatably mounted and it will be extended without further measures the pull-out and the center rail successively from the body rail. At the end of the pull-out path of the pull-out rail from the middle rail, a stop of the pull-out rail on the middle rail and a joint connected thereto, thereby impairing the running culture. Therefore telescopic extensions have been developed, in which additional measures are provided to achieve synchronized (= differential) travel of the rails, with the center rail only covering half the distance of the pull-out rail with respect to the body rail. For this purpose, secondary revolving belts, which are associated with high assembly costs, have an elastic driving roller rotatably mounted on the center rail and passing through a window recess of the center rail, but which does not constitute a load-transmitting roller. Such a telescopic pull-out guide with differential action is described, for example, in AT 392883 B.
    Further, differential type roller pull-out guides are known in which a load-bearing differential roller rotatably mounted on the center rail is provided, thereby achieving synchronism of the rails. In this case, the middle rail only covers half the distance of the pull-out rail relative to the carcass rail. In such pull-out guides, also referred to as differential roller pull-out guides or shorter differential pull-out guides, which have a high level of refinement, advantageously all of the rollers may be rotatably mounted on the center rail. Such roller differential extension guides are described for example in AT 391 603 B, AT 505 053 B1 and EP 2 074 909 B1.
    Current drawer slides are often equipped with dampened pull-in mechanisms which, upon insertion of the pull-out furniture part, pull the latter in the fully retracted state in the last part of the retraction movement. For example, in the differential extension guides of the aforementioned documents AT 505 053 B1 and EP 2 074 909 B1, such dampened pull-in mechanisms are present.
    In the operation of pull-out guides with a differential run of the rails, there may be the case that the pull-out rail is behind its intended position when the pull-out guide is inserted. As a result, the center rail in front of the pull-out rail reaches its fully inserted position. In addition, in order to achieve the fully retracted position of the pull-out rail, in the case of a roller pull-out guide having a differential or drive roller causing differential movement of the rails, a sliding displacement must be made against the surface of the roller guiding the differential guide of the rails. It is thereby required a strong force increased, which also depends on the weight of the pull-out furniture part and its loading. In the case of forming the pull-out guide with a damped pull-in mechanism, such an increased amount of force from the pull-in mechanism usually can not be applied, so that the pull-out rail is not completely retracted by the pull-in mechanism.
    In addition to roller pull-out guides in which the rollers are rotatably mounted on the rails, pull-out guides are also known, which have balls or roller-tipped carriages. These have their own advantages and disadvantages compared to roller pull-out guides, and the problems associated with the design and construction differ considerably from those of roller pull-out guides. Pull-out guides having balls or rollers fitted with carriages have less good running properties than roller pull-out guides. Moreover, in such pull-out guides having ball-and-nut loaded carriages, the pull-out rail is not detachable from the center rail without tools.
    In contrast, this is generally the case with roller pull-out guides. Thus, the mounting of the slide rails on both sides of the pull-out furniture part mitabgenommenen pull-out rails done. Additional adapter rails amausziehbaren furniture part, in order to connect this with the Ausziehschienen, are therefore not required.
    To prevent misalignments in the positioning of the carriages (= carriage errors) in pull-out guides which have carriages fitted with balls or rollers, but also to achieve synchronism between a carcass rail, center rail and pull-out rail of such a pull-out guide, it is known to provide positive controls which gears mesh with toothed bar profiles. Thus, carriages may be provided with such rack profiles. Furthermore, it is known to provide such toothed rack profiles on the body rail and on the pull-out rail, wherein a toothed wheel which is rotatably mounted on the center rail is in meshing engagement therewith. Pull-out guides which have running carriages equipped with balls or rollers and are designed with such positive controls are disclosed, for example, in DE 10 2004 002 823 A1, DE 20 307 757 U1 and US Pat. No. 3,857,618 A.
    To prevent tilting of both sides of the extendable furniture part pull-outs when pulling and pushing the pull-out furniture part, parallel guide devices are known. Here, rack rails are arranged on the body rails of the extension guides arranged on both sides of the pull-out furniture part, which mesh with gears which are connected to each other via a parallel guide shaft. Such parallel guidance devices can be seen for example from EP 1 649 782 B1 and AT 13 357 U. In order to enable the parallel guidance also by means of a full extension or over extension of the pull-out guide, the first cited discloses pivotable gear carriers with transmission gears which mesh with the parallel guide gears. In the latter document, front pivotal rack sections are provided on the body rails, which are pivoted from a vertical rest position to a horizontal active position upon extension of the extension guides.
    The object of the invention is to provide an advantageous pull-out of the type mentioned above with a high running culture. According to the invention, this is achieved by a pull-out guide having the features of claim 1.
    In a pull-out guide according to the invention, the carcass rail has a first rack profile and the pull-out rail has a second rack profile. Disposed on the center rail is a gear unit having at least one gear which is in meshing engagement with the first rack profile and the second rack profile to forcibly control synchronous travel of the rails upon extraction of the pull-out rail in a pull-out direction and insertion of the pull-out rail. Here is at least one
    Section of the longitudinal extension of one of the rack profiles from a Grundstellung to a release position in which the tooth engagement with the gear unit is released, elastically deflectable. Thus, the positive locking effected by the force control between the center rail and the rail, which has the at least partially elastically deflectable toothed rack profile can be canceled. The adjustment from the basic position into the release position can advantageously be achieved hereby by exerting a sufficiently high force acting parallel to the withdrawal direction between the middle rail and the rail, which has the at least partially elastically deflectable rack profile. Such a force results in a force component acting in the sense of pushing the teeth apart. When the force acting in parallel to the pull-out direction exceeds a threshold value, the teeth of the gear unit and the at least partially elastically deflectable rack profile are disengaged when this rack profile is elastically deflectable in the region in which the meshing engagement with the gear unit exists.
    By such a positive control in conjunction with the sliding guide of the pull-out rail with respect to the middle rail by means of rollers rotatably mounted on at least one of the rails (ie the axis of a respective roller is at least substantially stationary relative to the respective rail), a high running culture can be provided with a synchronous running of the rails , In addition, it is possible that the pull-out rail can be removed from the middle rail, in particular without tools, for example, for mounting on the pull-out furniture part, and can be re-installed in the center rail in an assembly-friendly manner. Advantageously, the meshing engagement between the gear unit and the at least partially elastically deflectable rack profile is in the elastically deflectable region of this rack profile when the center rail is in its fully inserted into the body rail position. The removed pull-out rail can thus be inserted and pushed into this fully inserted position of the middle rail into the center rail until it is also in its fully retracted position, whereby the control of the tension between the rails can be overcome by the elastic deflectability of at least a portion of one of the racks.
    The removability of the pull-out rail from the center rail can be realized in a manner usual for roller pull-out guides, in particular by means of an adjustable safety-release part. When the safety catch part is in its open position, a front end of the pull-out rail can be raised with respect to the pull-out direction, so that stop elements of the pull-out rail and the middle rail can be guided past one another. In the blocking position of the safety catch part, lifting of the front end of the pull-out rail is at least so far blocked, that the stop members of the pull-out rail and the center rail can not be moved past each other and the extraction of the pull-out rail from the center rail is limited by these cooperating stop members.
    In an advantageous embodiment of the invention, the middle rail is guided relative to the carcass rail displaceable by means of at least one of the rails rotatably mounted rollers. It is then a pure roll extension guide in which the slidable guide of both the center rail relative to the carcass rail and the Ausziehschiene relative to the center rail by rotatably mounted about rollers and not arranged between the rails and these movable carriage, which equipped with rolling elements are. It can thus also a, in particular tool-free, removability of the center rail of the body rail, for example, for maintenance purposes, be made possible.
    In one possible embodiment of the invention, all rollers for displaceable guidance of the rails are rotatably mounted on the center rail. It may conveniently be provided here also a load-transmitting differential role, which is rotatably mounted with a vertical play relative to the center rail on this and from which a load directly from the pull-out on the
    Carcass rail is transmitted. The arrangement and design of the rollers including the differential roller may be in accordance with conventional differential roller pull-out guides. The differential roller assists in the synchronous movement of the rails, thereby assisting the positive control effected by the gear unit and rack profiles. It can thereby be achieved particularly advantageous running characteristics of the pull-out, whereby the positive control of the correct mutual position of the rails can be ensured in the normal operation. Nevertheless, the pull-out rail, in particular for assembly and maintenance purposes, can be removed and reused in practice-oriented ways.
    An advantageous embodiment of the invention provides that the gear unit has about a common axis of rotation rotatably mounted first and second gears, of which the first gear cooperates with the first rack profile and the second gear with the second rack profile. The rack profiles may thus be laterally staggered with respect to each other, which may facilitate placement in the pull-out guide, especially in the case of a roller-differential pull-out type configuration. At the same distance of the teeth of the rack profiles, in this case, the first and second gears favorably have the same number of teeth. The first and second gears may advantageously be rotatably mounted about a common axis of rotation by a bearing member fixed to a base profile of the center rails. A storage directly on the base profile of the middle rail is conceivable and possible.
    Conceivable and possible, however, would also be an embodiment in which the gear unit has only a single gear, which mesh profile for forcing the rails with both the first rack profile and with the second rack. The toothed wheel could in this case be rotatably mounted on a journal of a bearing part of the gear unit, which is fastened to the center rail, or on a journal fixed directly to the base profile of the center rail. The connection with the axle journal could also be rigid and the journal be rotatably mounted.
    In order to enable a full extension or over-extension and thereby maintain the positive control over the entire length of the extension, it can be provided to arrange a pivotable rack member on the carcass rail or on the pull-out rail. This is pivotable between an active position in which it continues the rack rail profile of the rail on which it is placed and a passive position in which it is angled to this rack rail profile. In the fully extended state of the pull-out guide, the pivotable rack piece is in its active position and meshing with the gear unit. In the retracted state of the pull-out guide, the rack-and-pinion piece is in its passive position, and it does not protrude beyond the base profile of the rail on which it is pivotably mounted with respect to the pull-out direction.
    Further advantages and details are explained below with reference to the enclosed drawing. In this show:
    Figures 1 and 2 are diagonal views of a pull-out guide according to an embodiment of the invention, looking in the direction of the side of the attachment of the pull-out furniture part and looking towards the side of the furniture body, in the fully retracted state of the pull-out guide;
    Figs. 3 and 4 are oblique views similar to Figs. 1 and 2, but only the parts of the torque controller;
    FIGS. 5 and 6 are oblique views of the pull-out guide in the viewing directions according to FIG. 1 and 2, but in the fully extended state of the pull-out guide; Figures 7 and 8 are oblique views similar to Figures 5 and 6, but only of the parts of the torque controller;
    9 and 10 are oblique views of the pull-out rail and the carcass rail in the viewing direction according to FIGS. 1 and 5;
    11 and 12 are side views of the carcass rail in the home position and in the release position of the elastically deflectable portion of the rack rail profile of the carcass rail;
    Fig. 13 is an enlarged detail A of Fig. 12;
    Figs. 14 and 15 are oblique views of the center rail in the viewing directions according to Fig. 1 and 2;
    Fig. 16 is a side view of the center rail;
    FIGS. 17 and 18 are oblique views of the center rail according to FIGS. 14 and 15, but without the gear unit;
    19 shows an oblique view of the pull-out guide in a viewing direction according to FIG. 1, during the insertion of the drawer rail, the elastically deflectable section of the toothed rack profile of the carcass rail still in its basic position;
    Fig. 20 is an enlarged detail B of Fig. 19;
    Fig. 21 is a side view of the pull-out guide in the position of the rails according to Fig. 19;
    Fig. 22 is an enlarged detail C of Fig. 21;
    Fig. 23 is an oblique view of the pull-out analogous to Figure 19, the elastically deflectable portion of the rack profile of the carcass rail but in an intermediate position between its basic position and its release position;
    Fig. 24 is an enlarged detail D of Fig. 23;
    Fig. 25 is a side view of the pull-out guide in the position of the rails according to Fig. 23;
    Fig. 26 is an enlarged detail E of Fig. 25;
    Fig. 27 is an oblique view of the pull-out analogous to FIG. 19, the elastically deflectable portion of the rack profile of the carcass rail but in its release position;
    Fig. 28 is an enlarged detail F of Fig. 27;
    Fig. 29 is a side view of the pull-out guide in the position of the rails according to Fig. 27;
    Fig. 30 is an enlarged detail G of Fig. 29;
    31 and 32 oblique views of the gear unit in viewing directions corresponding to Figs. 1 and 2.
    An embodiment of a pull-out guide according to the invention is shown in Figs. 1-32. The pull-out guide is designed as a roller pull-out guide in the form of a differential pull-out.
    The pull-out guide serves to pull out a pull-out furniture part 1 from a furniture body 2, portions of which are indicated by dashed lines only in Fig. 1. In particular, the pull-out furniture part 1 can be a drawer, and the invention can also be used with other pull-out furniture parts, for example trays or cabinet pull-outs. The pull-out guide shown in the figures is arranged in the mounted state on one side of the pull-out furniture part 1 between the pull-out furniture part 1 and a side wall of the furniture carcass 2. On the other side of the pull-out furniture part, a mirror-shaped pull-out guide can be arranged. Deviations from a precisely mirror-image formation are possible. In other embodiments, the pull-out guide could basically also be arranged on the underside of the pull-out furniture part 1 between demausziehbaren furniture part 1 and a portion of the furniture body 2.
    The pull-out guide comprises a carcass rail 4 to be fastened to the furniture body 2, a pull-out rail 6 to be fastened to the pull-out furniture part 1 and a middle rail 5 located therebetween.From its fully retracted position (see Figures 1 and 2), the pull-out rail 6 can be pulled out in a pull-out direction 3 until it reaches its fully extended position, cf. Fig. 5 and 6. the middle rail 5 moves when pulling the pull-out rail 6 at half the speed of the pull-5 in the pull-3, so over half the distance (= differential run or synchronism of the rails).
    The carcass rail 4 has a vertical base web 7, with which it rests against the furniture body 2 in the mounted state, and upper and lower horizontal flanges 8, 9 connected to the base web 7 in the region of its upper or lower edge, which conveniently provide end-to-end crimps at their free edges are.
    The pull-out rail 6 has a vertical base web 10 and a horizontal flange 11 connected to the base web 10. The attachment of the extendable furniture part 1 takes place on the base web 10. The web 10 could also be connected in the region of its lower end to a horizontal flange on which the extendable furniture part rests.
    For mutually displaceably guiding the pull-out rail 6 with respect to the middle rail 5 and the middle rail 5 with respect to the carcass rail 4, there are rollers 12 to 17 which have parallel axes. The axes are perpendicular to the withdrawal direction 3 and are in particular horizontal
    In the embodiment shown, the rollers 12 to 17 for mutually displaceably guiding the rails 4, 5, 6 all at least substantially fixed axes on the center rail 5 to the middle rail 5 (the axis of the differential roller 16 has a clearance relative to the center rail 5, as mentioned below) rotatably mounted. Other roller arrangements with a rotatable bearing of rollers on the pull-out rail and / or carcass rail are however conceivable and possible.
    On the base profile 19 of the middle rail 5, a front roller 12 is in the region of its front end relative to the pull 3, rotatably in its rear end a rear roller 13 and in its central region a first and a second middle roller 14, 15 and a differential roller 16 rotatably mounted this is known, for example, from the aforementioned prior art relating to differential roller extension guides. The load-transmitting differential roller 16 cooperates both with a raceway on the upper side of the lower horizontal flange 9 of the carcass rail 4 and with a raceway on the lower side of the horizontal flange 11 of the pull-out rail 6. By the differential roller 16, it also comes without the below described
    Forced control of a differential run of the rails 4, 5, 6, but it may come to misalignments between the rails due to, for example, slippage.
    Behind the differential roller 16 is conveniently an auxiliary roller 17 rotatably mounted on the base profile 19 of the central rail, as is also already known. In front of the differential roller 16, a support member 18 is conveniently arranged for sliding bearing. The auxiliary roller 17 and / or the support member 18 could also be omitted.
    If no full or even over extension is desired, the middle roller 14 and with it also the support member 18, omitted.
    In the embodiment, the center rail is double cranked, with upper and lower vertical sections 20, 21 and a laterally offset central vertical section 22, whereby a stable formation is achieved. Even configurations with only one bend or one continuous vertical leg are conceivable and possible and also known ,
    The center rail 5 is provided with various stop members to limit the mutual displacement of the rails 4, 5, 6.
    The stopper member 23 (see Fig. 15) of the center rail 5 serves to limit the withdrawal of the center notes 5 from the carcass rail 4 and cooperates with the stopper member 24 (see Fig. 10) of the carcass rail 4. The stop member 23 is pivotally mounted on the center rail 5, and to remove the center rail 5 from the body rail 3, the stopper member 23 can be pivoted upward. The stop member 25 (see Fig. 15) of the center rail 5 restricts the insertion of the center rail 5 into the body rail 4 and cooperates with the stopper member 26 (see Fig. 10) of the body rail 4. The stop surface of the stop element 27 (see Fig. 14) of the center rail 5, which is located at the front in relation to the pull-out direction 3, limits the insertion rail 6 from sliding into the middle rail 5 and cooperates with the stop element 28 (see Fig. 6) of the pull-out rail 6. The stop member 28 is formed by a step of downwardly flattening the horizontal flange 11 of the pull-out rail 6. A further, not visible in the figures gradation of downward bending of the horizontal flange 11 of the pull-out rail 6 cooperates with the relative to the withdrawal direction 3 rear surface of the stop element 27 of the middle rail 5 and limits the extension of the pull-6 from the center rail 5. At the middle rail 5 is a Aushängesicherungsteil 29 arranged, which in the position shown in Figs. 14 to 16 lifting the front end of the pull-6 against the center rail 5 so far blocked that the abovementioned stop element of the pull-6 can not be raised above the stop element 27. The Aushängsicherungsteil 29 can be moved starting from the position shown in FIGS. 14 to 16 relative to the base profile 19 of the center rail 5 in the pull-3 and then lifted with its front end. In this position, the pull-out rail can be completely withdrawn from the center rail 5 by raising its front end in the pull-out direction 3. Stop elements and an anti-sear of the type described above are basically known in differential roller pull-out guides.
    The pull-out guide according to the invention further has a positive control for the synchronous running of the rails 4, 5, 6 during extension and insertion of the pull-out rail 6. For this, the carcass rail 4 has a first rack profile 30 and the pull-out rail 6 has a second rack profile 31. The rack profiles 30, 31 are formed in the embodiment of rack parts which are connected to the base profiles 32, 33 of the cabinet rail 4 and pull-out rail 6. The rack profile 30 and / or 31 could also be formed by a web of the respective base profile 32, 33, which is provided with a toothing.
    The rack profile 30 extends over a front part of the longitudinal extension of the carcass rail 4 in relation to the pull-out direction 3. The rack profile 31 extends over a rear part of the pull-out rail 6 with respect to the pull-out direction 3.
    At the middle rail 5, a transmission unit 34 is arranged. This comprises a first and a second gear 35, 36 which are rotatably mounted about a common axis of rotation 37. The axis of rotation 37 is at right angles to the withdrawal direction 3 and horizontal. In the exemplary embodiment, the axis of rotation 37 is formed by an axle pin 38, on which the gears 35, 36 are fixed on both sides and which is rotatably supported by a bearing part 39, which is fixed to the base profile 19 of the center rail 5. A rigid arrangement of the axle pin 38 on the bearing part 39 and rotatable mounting of the gears 35, 36 on the axle 38 is conceivable and possible.
    A bearing part 39 could also be omitted, so that the axle pin 38 would be directly connected to the base profile 19 of the center rail 5 (rotatable or non-rotatable).
    The axle pin 38 is a direction perpendicular to the axis of rotation 37 and at right angles to the withdrawal direction 3, ie in the exemplary embodiment in the vertical direction, elastischauslenkbar. It can thereby be accommodated manufacturing tolerances. This elastic deflectability is achieved in the embodiment by an elastic deformability of the bearing part 39.
    For synchronism control of the rails 4-6, the first gear 35 meshes with the first rack profile 30 and the second gear 36 meshes with the second rack profile 31.
    In the region of the front end of the body rail 4 with respect to the pull-out direction 3, a toothed rack piece 40 is mounted pivotably with respect to the body rail 4. In the fully retracted state of the pull-out this assumes a passive position, in which it is with its longitudinal extent at an angle to the withdrawal direction 3, preferably at an angle of 45 ° to 90 °. When the pull-out rail 6 is pulled in the pull-out direction 3 from its fully retracted position, the rack bar piece 40 will pivot during this pull-out. This pivoting occurs first through the center rail 5 which faces the rack bar piece with its front end relative to the pull-out direction 3 40 starts. As the drawing proceeds, the rack piece 40 slides over the surface 41 of the base profile 19 of the center rail 5 and the bracket 42 attached to the base profile 19. The rack piece 40 then forms an extension of the first rack profile 30. Over a final portion of the pull-out of the pull-out guide, the first gear 35 exits the first rack profile 30 and engages the teeth of the rack member 40. The rack member 40 is thereby pivoted to its active position, see FIG. Fig. 5 to 8.
    It is thereby a forced control for the synchronism of the rails 4 -6 also achieved for a full extension or even over extension of the pull-out furniture part. If such a full or over extension is not desired, the rack piece 40 can also be omitted.
    When inserting the pull-out guide, the rack section 40 pivots back into its passive position by gravity.
    The rack profiles 30, 31 have longitudinal extensions, which lie parallel to the withdrawal direction 3 at least over the majority of their expansions. Only the first toothed rack profile has an area adjoining it with respect to the pull-out direction 3, in which it runs obliquely to the pull-out direction 3. In this area, the first gear 35 engages the first rack profile 30 when the differential roller 16 enters a recessed area of the lower horizontal flange 9 of the body rail 4 in a final portion of insertion of the pull-out rail 6 before the fully extended state of the pull-out guide is reached. This recessed area 43 forms a sloping ramp for the differential roller 16 so that self-closing is achieved over a final portion of the retraction rail 6 retraction. A corresponding recessed area 44 is provided for the auxiliary roller 17. The region of the first rack profile 30 extending obliquely downwards relative to the pull-out direction 3 of the first rack profile 30 can be seen particularly well from FIG. 11.
    In the area adjoining the rear end of the first rack profile 30, in which the first rack profile 30 extends down to its rear end, the first rack profile 30 can be deflected elastically upward. For this purpose, the upper horizontal flange 8 of the carcass rail 4, below which the first rack profile 30 extends, has a window recess 45 in this area. Via the section 46 of this elastically deflectable region of the first toothed rack profile 30, the deflectability is so great that the toothed engagement with the first toothed rail is limited by the elastic deflection Gear 35 of the transmission unit 34 can be canceled, d. H. the teeth of the first gear 35 can be disengaged from the teeth of the first rack profile 30. The first rack profile 30 thus has a portion 46 of its longitudinal extent in which the first rack profile 30 can be elastically deflected from a home position in meshing engagement with the first gear 35 of the gear unit 34 to a release position in which the meshing with the first gear 35 is canceled , The elastic deflection takes place in a direction perpendicular to the axis of rotation 37 of the gear 35, which cooperates with the rack profile 30. In the embodiment, the direction of the elastic deflection is substantially vertical.
    Thereby, it is easily made possible that, after the pull-out rail 6 has been taken out of the pull-out guide, for example, for assembly to the pull-out furniture part 1, it is again inserted into the center rail 5 of the pull-out guide. This will be explained below with reference to FIGS. 19 to 30.
    The insertion of the pull-out rail 6 can be advantageously carried out with completely inserted middle rail 5. Figs. 19 to 22 show the state when the pull-out rail 6 has just been inserted into the center rail 5 so far that the teeth of the second rack section 31 disposed on the pull-out rail 6 are engaged with the second gear 36 (in the side view of Figs 22, the teeth of the gears 35, 36 coincide). Upon further pressing in of the pull-out rail 6 against the pull-out direction 3, the oblique tooth flank 47 of a tooth of the first gearwheel 35 is pressed against the inclined tooth flank 48 of a tooth of the first rack profile 30, resulting in a force component which is in the sense of lifting the first rack profile 30 off the first gearwheel 35 acts. One of the sloping tooth flanks 47 of the teeth of the gear 35 and one of the oblique tooth flanks 48 of the teeth of the rack profile 35 are indicated in FIG. 28.
    Figures 23 to 26 show just an intermediate position in which the force acting on the pull-out rail 6 against the pull-out direction 3 is so great that teeth of the toothed wheel 35 and of the rack profile 30 are already slightly pressed apart but still engaged. By increasing the force acting on the pull-out rail 6 against the pull-out direction, the meshing teeth are increasingly pushed apart until they can be brought past each other with their tips, cf. Figs. 27 to 30 The tooth engagement between the first rack profile 30 and the first gear 35 is canceled at this time. After transfer via these two teeth, the interaction of the two subsequent teeth and the process is repeated until the pull-out rail 6 is fully inserted.
    Without such a design with an elastically deflectable portion of the first rack profile 30, the pull-out rail 6 would have to be inserted in the fully extended state of the center rails 5, which is difficult to handle, displacing the center rail against the pull-out direction 3 with small forces acting counter to the pull-out direction 3. In addition, when inserting a pull-out furniture part 1 on which pull-out rails are mounted on both sides, the center rails would have to be held on both sides in their fully extended positions. It could be easy too
    Incorrect operations occur, so that the gear units 34 of the extension guides on both sides of the pull-out furniture part 1 are not exactly in mesh with the same teeth of the rack profiles 30, 31.
    In order to improve the elastic restoring force of the elastically deflectable portion of the first rack profile 30, the first rack profile 30 in the embodiment is provided at its rear end with a support projection 49 which is supported on the underside of the upper horizontal flange 8 of the body rail 4. The difference between the home position of the deflectable portion of the first rack profile 30 and its release position is particularly apparent from the comparison of Figs. 11 and 12.
    If the recessed area 43 (and thus also the recessed area 44) of the body rail 4 is omitted, the first rack profile 30 would be parallel to the pull-out direction 3 over the entire area of its longitudinal extent (in the basic position of the deflectable portion 46). In the release position of the deflectable portion 46, the first rack profile 30 would then extend obliquely upward in this area towards its rear end.
    In normal operation of the pull-out guide (when none of the rails are removed or used), the first gear 35 is in the region of the deflectable portion 46 of the first rack profile 30 when the pull-out guide is fully collapsed. The positive control of the synchronous movement of the rails through the rack profiles 30, 31 and the gear unit 34 is also carried out in this position of the pull-out guide, since the force acting between the first gear 35 and the first rack profile 30 substantially lower than the force required to deflect the portion 46 of the first rack profile 30 required force from the basic position to the release position.
    The first rack profile 30 could be elastically deflectable over its entire length instead of only over a portion of its longitudinal extent.
    Instead of providing the first rack profile 30 with at least one deflectable portion 46, the second rack profile 31 could also be made elastically deflectable over its entire longitudinal extent so that it deflects from a home position in which there is a meshing engagement between the second rack profile 31 and the second gear 36 Release position can be done in which the meshing between the second rack profile 31 and the second gear 36 is canceled.
    Various other modifications of the illustrated embodiment of the invention are conceivable and possible without departing from the scope of the invention. Thus, the pull-out guide could also have otherwise disposed rollers for mutually slidingly guiding the rails. It could also be omitted a differential role, wherein the synchronous control between the rails could be made only by the rack profiles 30, 31 in connection with the gear unit 34. For example, an arrangement of the rollers could be provided in the manner of a conventional telescopic extension. Eswären then not all rollers on the middle rail 5 rotatably mounted. An additional elastic drive roller (but not a load-transmitting roller), as it is known for example from the aforementioned prior art, this could also be provided or omitted.
    If the base profiles of the rails are so formed and the rollers are arranged so that the rack profiles 30, 31 can be vertically stacked one on top of the other, the transmission unit 34 could also have only a single gear.
    Depending on the design of the base profiles of the rails and the arrangement of the rollers, it would also be conceivable and possible for the rack rail profile facing down on the pull-out rail to point downwards with its teeth and for the rack profile arranged on the body rail to lie lower and point upwards with its teeth. In particular, with such a training could instead of the
    Rack piece 40 also be provided that in the region of the rear end of the pull-a toothed rack piece is stored analogous to the rack piece 40verschwenkbar.
    A pivotable rack piece could in principle also be provided for extending the lower rack profile (as in the embodiment of the rack profile 31), such a rack unit then being pivoted upward in the retracted position of the pull-out guide by means of a spring.
    Instead of the area adjoining the rear end of the first rack profile 30, in which the first rack profile 30 slopes down to its rearward end to follow the movement of the gear unit 34, if at least one roller of the middle rail slides into a recessed area of the body rail just before reaching In the fully retracted position, the second rack profile 31 could then have, at its front end, a region over which it extends upwardly to its front end obliquely to the pull-out direction 3.
    Although a retraction mechanism (= self-retraction) is not shown in the figures for the sake of simplicity, such will be advantageously employed in many embodiments. For example, such a pull-in mechanism could be designed according to the prior art mentioned at the outset in connection with differential roller pull-out guides. By a design according to the invention with a positive control for the synchronization of the rails, the correct mutual position of the rails is ensured. Thus, a complete retraction of the pull-out guide is ensured even with a relatively low pull-in force of the pull-in mechanism. The feeder mechanism can thus be made relatively inexpensive.
    Key to the reference numbers: 1 pull-out furniture part 26 stop element 2 furniture carcass 30 27 stop element 3 pull-out direction 28 stop element 4 carcass rail 29 safety catch 5 middle rail 30 first rack profile 6 pull-out rail 31 second rack profile 7 base bar 35 32 base profile 8 horizontal flange 33 base profile 9 horizontal flange 34 transmission unit 10 base bar 35 first gear 11 horizontal flange 36 second gear 12 front roller 40 37 rotation axis 13 rear roller 38 axle pin 14 middle roller 39 bearing part 15 middle roller 40 rack piece 16 differential roller 41 surface 17 auxiliary roller 45 42 bracket 18 support member 43 recessed area 19 base profile 44 recessed area 20 upper vertical section 45th Window recess 21 lower vertical section 46 section 22 middle vertical section 50 47 tooth flank 23 stop element 48 tooth flank 24 stop element 49 support extension 25 stop element
    权利要求:
    Claims (10)
    [1]
    A pull-out guide comprising a body rail (4) attachable to a furniture body (2), an extension rail (6) attachable to a pull-out furniture part (1) and a center rail (5) between the body rail (4) and pull-out rail (6) Rails (4-6) are guided displaceable against each other and at least the pull-out rail (6) relative to the central rail (5) by means of at least one of the rail rotatably mounted rollers (12-17) is displaceably guided, characterized in that the carcass rail (4) has a first Rack profile (30) and the pull-out rail (6) has a second rack profile (31) and on the center rail (5) at least one gear (35, 36) having gear unit (34) is arranged for forcing a synchronization of the rails when pulling out the pull-out ( 6) in a pull-out direction (3) and insertion of the pull-out rail (6) against the pull-out direction (3) with the first toothed rack and at least a portion (46) of the longitudinal extent of one of the rack profiles (30, 31) from a basic position to a release position in which the tooth engagement with the gear unit (34) is canceled elastic is deflectable.
    [2]
    2. Pull-out guide according to claim 1, characterized in that the portion (46) of the first rack profile (30) which adjoins a rear end of the first rack profile (30) relative to the pull-out direction (3) is elastically deflectable.
    [3]
    3. Pull-out guide according to claim 1 or 2, characterized in that also the middle rail (5) relative to the carcass rail (4) is displaceably guided by means of at least one of the rails rotatably mounted rollers (12-17).
    [4]
    4. pull-out according to one of claims 1 to 3, characterized in that all rollers are rotatably mounted on the central rail (5).
    [5]
    Pull-out guide according to one of claims 1 to 4, characterized in that the axis of rotation (37) of the at least one gear (35, 36) of the gear unit (34), which for positively controlling the rails with the first and / or second rack profile (30, 31 ), or in the case of more than one such gear (35, 36), each of these gears (35, 36) is perpendicular to the withdrawal direction (3) and horizontal.
    [6]
    6. pull-out guide according to one of claims 1 to 5, characterized in that the axis of rotation (37) of the gear (35, 36) of the gear unit or at least one of these gears (35, 36) forming the axle pin (38) in a right angle to the axis of rotation (37 ) and at right angles to the withdrawal direction (3) standing direction is elastically deflectable.
    [7]
    7. pullout guide according to claim 6, characterized in that the axle pin (38) of a bearing part (39) of the gear unit (34) is fixed or rotatably mounted, wherein the bearing part (39) in the perpendicular to the axis of rotation (37) andrechtwinklig to Ausziehrichtung ( 3) standing direction is elastically deformable.
    [8]
    8. Pull-out guide according to one of claims 1 to 7, characterized in that the gear unit (34) about a common axis of rotation (37) rotatably mounted first and second gears (35, 36), of which the first gear (35) with the first rack profile (30) and the second gear (36) cooperates with the second rack profile (31).
    [9]
    9. Pull-out guide according to one of claims 1 to 8, characterized in that on the carcass rail (4) or on the pull-out rail (6) a pivotable rack piece (40) is arranged, which between a passivstellung, in which it at an angle to the rack profile (30, 31) of the rail, on which the rack piece (40) is arranged, and an activating position in which it continues the rack profile (30, 31) of the rail on which the rack piece (40) is arranged, wherein the gear unit (34 ) is in meshing engagement with the rack bar piece (40) in a fully extended condition of the pull-out guide.
    [10]
    10. Pull-out guide according to one of claims 1 to 9, characterized in that the pull-out rail (6) without tools from the center rail (5) is detachable.
    类似技术:
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    同族专利:
    公开号 | 公开日
    ES2638845T3|2017-10-24|
    PL2992780T3|2017-11-30|
    EP2992780B1|2017-06-21|
    EP2992780A1|2016-03-09|
    AT516222B1|2018-01-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE102004002823A1|2004-01-12|2005-08-04|Alfit Ag|Extension guide for drawer, has controller determining synchronization of movements of carriages with respect to one another, and steering wheels that are positioned on middle rail|
    DE202004006284U1|2004-04-21|2005-05-12|Grass Gmbh|Drawer guide has two rail systems with at least one rail system having the rail and carriage components synchronized using two partial synchronizations|
    DE202008013242U1|2008-10-08|2009-05-20|Grass Gmbh|Device with a guide unit for guiding a relative to a body movable furniture drawer|
    DE202010007999U1|2010-07-07|2010-10-07|Anton Schneider Gmbh & Co Kg|Pull-out guide for drawers|
    DE202010011854U1|2010-08-25|2011-11-28|Grass Gmbh|Guide unit for a movable furniture element|
    US3857618A|1973-03-21|1974-12-31|M Hagen|Synchronization and precision sequencing of ball retainer relationship to one-half of slide movement|
    AT392883B|1988-08-29|1991-06-25|Fulterer Gmbh|DRAWER EXTENSION|
    AT391603B|1989-03-09|1990-11-12|Fulterer Gmbh|DRAWER DRAWER DIFFERENTIAL DESIGN|
    AT410162B|1999-03-17|2003-02-25|Blum Gmbh Julius|Drawer motion stabilising device comprises correcting area with small on one or both racks which cooperate with pinions on drawer sides|
    DE20307757U1|2002-07-22|2003-07-10|Blum Gmbh Julius|Drawer runner fitting, has runner carriage urged backed into closed position via guide acting upon support or pull out rails|
    AT7723U1|2004-06-28|2005-08-25|Grass Gmbh|DRAWER SYSTEM|
    AT8111U1|2004-10-22|2006-02-15|Fulterer Gmbh|pull-out|
    AT505053B1|2007-04-02|2009-02-15|Fulterer Gmbh|ROLLER Differential extension|
    AT506062B1|2007-12-27|2009-06-15|Fulterer Gmbh|ROLLS-pull-out|
    DE202012002127U1|2012-02-29|2013-06-06|Grass Gmbh|Device for stabilizing the running behavior of a movable in a furniture body furniture part|
    AT13357U1|2012-03-23|2013-11-15|Fulterer Gmbh|Tooth-bearing body|CN106426050B|2016-12-08|2017-11-28|扬州奥巴玛科技发展有限公司|A kind of electromechanical maintenance kit|
    AT523907B1|2020-10-28|2022-01-15|Fulterer Ag & Co Kg|pull-out guide|
    AT523909B1|2020-11-16|2022-01-15|Fulterer Ag & Co Kg|pull-out guide|
    法律状态:
    2020-04-15| MM01| Lapse because of not paying annual fees|Effective date: 20190825 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA656/2014A|AT516222B1|2014-08-25|2014-08-25|pull-out|ATA656/2014A| AT516222B1|2014-08-25|2014-08-25|pull-out|
    PL15002292T| PL2992780T3|2014-08-25|2015-08-01|Drawer slide|
    ES15002292.9T| ES2638845T3|2014-08-25|2015-08-01|Extraction Guide|
    EP15002292.9A| EP2992780B1|2014-08-25|2015-08-01|Drawer slide|
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