• 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:

    公开号:AT510361A1
    申请号:T0140210
    申请日:2010-08-23
    公开日:2012-03-15
    发明作者:
    申请人:Blum Gmbh Julius；
    IPC主号:
    专利说明:

    1 5 * * i · ·
    The present invention relates to a pull-out for drawers with a to be fixed to a cabinet body rail, a drawer to be attached to the drawer rail and a movably mounted between the carcass rail and the middle rail, the relative movement of the rails is determined by a positive control device.
    Furthermore, the invention relates to a piece of furniture with a drawer extension of the type to be described.
    Forced controls of a drawer pull-out guide serve to precisely define the relative movement sequence of the rails and / or the relative movement of carriages mounted between the rails. In this context, numerous embodiments of such positive controls have become known, wherein either the movement of the rails relative to each other, the movement of the rails relative to the carriage or the movement of carriages is controlled relative to each other, on the one hand between the carcass rail and the middle rail and on the other hand between the Middle rail and the drawer rail are mounted displaceably. Examples of positive controls are rack-and-pinion arrangements, friction wheels that can be shifted on running surfaces of the rails or else cables which control the relative movement of the rails and / or the carriages. When using such positive controls, however, there is a risk that a blockage or a non-synchronous movement of a movable rail to destruction of the positive control - in particular to a rupture of the rack and pinion arrangement or to a demolition of the cable - can lead. The transport of the drawer pull-out guide as well as improper handling (intentional misuse or dropping of the drawer pull-out guide) can lead to such damage that the drawer pull-out guide is no longer functional.
    Object of the present invention is therefore to provide a drawer extension of the type mentioned above while avoiding the above drawback.
    This is achieved by the features of claim 1. Further advantageous embodiments of the invention are specified in the dependent subclaims. 68501 -21 / hn 2
    According to the invention, it is thus provided that an overload protection is provided by which the positive control of the rails can be canceled reversibly.
    Thus, the present invention is based on the basic idea of interrupting the force flow acting on the positive control when a predetermined threshold value is exceeded in order to prevent overloading or damaging the positive control. After disconnecting the power flow, the overload protection - if the force or torque is again within a tolerable range or has a tolerable value - connect the power flow again.
    According to a first embodiment it can be provided that the positive control between the rails of the pull-out guide is effective. In this case, the positive control device thus interacts with the rails-in particular with running surfaces thereof-whereby the course of movement thereof is determined.
    In a second embodiment of the invention, it may be provided that the positive control on the one hand engages on a carriage movably mounted between the rails and on the other hand on at least one rail. By coupling a rail with at least one carriage mounted between the rails, the relative movement of the rails (via the movement of a carriage) can be indirectly determined. A possible embodiment provides in this case that the positive control on the one hand with a slidably mounted between the rails carriage and on the other hand with a arranged on one of the rail tread - in particular via a rack - cooperates.
    In a third embodiment of the invention can be provided that the positive control on the one hand engages a displaceably mounted between the carcass rail and the center rail carriage and on the other hand on a slidably mounted between the middle rail and the drawer rail carriage. In this case, therefore, the relative movement of a arranged between the carcass rail and the center rail carriage and a arranged between the center rail and the drawer runner carriage is set. The movement of the rails relative to each other is thus determined indirectly via the movement of the carriage. 3
    For the realization of the overload protection there are various possibilities. According to one exemplary embodiment of the invention, it can be provided that the overload safety device has at least one - preferably self-switching - coupling, which causes a decoupling of the positive control from a predetermined threshold value. In this context, for example, slip clutches are advantageously used, which reversibly interrupt the power flow without external influence when reaching a defined torque. In this connection, numerous clutches according to the prior art are available to the person skilled in the art for realizing such a coupling.
    There are, for example, friction clutches are known in which the overload protection is realized by a metal spring, which slips from a predetermined torque between the coupling parts, whereby a decoupling is brought about. In addition, centrifugal clutches are known which disengage from a certain torque. There are also couplings with spring-loaded coupling parts, which break the power flow after overcoming the spring force. It is also possible to use magnetic couplings which can reversibly interrupt a transmission of force or torque when a threshold value is exceeded.
    In a possible embodiment of the invention can be provided that the clutch is designed as a slip clutch with at least two locking wheels, which remain below each other in a given torque in their relative position and which are rotatable relative to each other above a predetermined torque. In this context, it may be advantageous if the latching wheels via cooperating tips, teeth, corrugations and / or projections are in positive and / or non-positive connection with each other. In one possible embodiment, it may be provided that a first ratchet wheel with an external toothing is inserted into a second ratchet wheel with an internal toothing. These ratchet wheels are thus at least partially positively and / or at least partially non-positively connected to each other and are rotatable when exceeding a predetermined torque relative to each other, whereby the required overload protection is provided.
    According to one embodiment, the two locking wheels may also be formed of plastic of different hardness, so that a first ratchet wheel is made more flexible than a second ratchet wheel, wherein the decoupling of the two locking wheels can be brought about by the resilient design of a ratchet wheel. The two ratchets • Λ · »» • • • • • • • im im im im im im im im im im im im im im im im im im im im im im im im und und und und Torque move relative to each other. An advantage of this embodiment is that the coupling can be formed entirely from plastic, which can be produced easily and inexpensively by injection molding. By using a plastic coupling can be dispensed with additional parts, such as metal spring or additional - in particular spring-loaded - coupling elements for selectively separating and connecting the power flow. By a complete design of the plastic coupling particularly compact or space-saving designs can be realized.
    The furniture according to the invention has at least at least one drawer which is movably mounted relative to a furniture body via a pull-out guide of the type in question.
    Further details and advantages of the present invention will be explained with reference to the following description of the figures. It shows or show:
    Fig. 2a-2d Fig. 3a, 3b Fig. 4 Fig. 5 Fig. 6a, 6b Fig. 7a, 7b is a perspective view of a piece of furniture with drawers, which are movably mounted on Schubladenausziehführungen relative to a furniture body, highly schematized Representations of pullout guides, wherein the positive control between the rails, between a carriage and a rail and between two carriages of the pull-out is effective, a drawer pull-out in a perspective view and an enlarged sectional view, a mounted on the center rail Synchronisationsrad, the overload protection part of this Synchronisationsrades is a part of the positive control with integrated overload protection in a perspective exploded view, an exemplary coupling with two to be interconnected locking wheels and a perspective view of a positive control, a section of the drawer extension in a tei Lweise broken perspective view and in a perspective sectional view. 5 • «* * • I« I «· + · * I · I I · I« »* I I 4 · * ♦ * · * ·
    Fig. 1 shows a perspective view of a piece of furniture 1, wherein drawers 3 are movably mounted on Schubladenausziehführungen 4 relative to a furniture body 2. The drawer pull-out guide 4 is formed in the embodiment shown as a full extension and has a body 2 to be fixed to the cabinet body rail 5, a movable relative to the middle rail 6 and an extendable drawer rail 7. The drawer rail 7 is in each case to be connected to one of the drawers 3. Between the carcass rail 5 and the middle rail 6, at least a first displaceable carriage and between the middle rail 6 and the drawer rail at least a second displaceable carriage are arranged, which, however, do not emerge from the figure shown. The carriages have - as is known - rolling elements for transmitting the load of the drawer 3. By a positive control, it is possible to prevent incorrect movement of the rails 6, 7 and / or incorrect movements of carriage, which are slidably mounted between the rails 5, 6, 7.
    2 a shows a highly schematic drawer pull-out guide 4 in a side view, wherein the mounting rail 5 fixedly arranged in the mounting position, the drawer rail 7 to be fastened to the drawer 3 and the middle rail 6 displaceably mounted between the carcass rail 5 and the drawer rail 7 can be seen. In the exemplary embodiment shown, the positive control 10 has a synchronization wheel 9, which is rotatably mounted on the middle rail 6, preferably on a horizontal shaft 8. The synchronization wheel 9 acts on the one hand with a running surface 5a of the carcass rail 5, on the other hand with a running surface 5b of the drawer rail 7 together. In this way, the drawer rail 7 can move during its path of movement at about twice the speed as the center rail 6. The synchronization 9 may be formed as a gear, which cooperates with running surfaces 5a, 5b in the form of racks or racks. It is also possible that the synchronization wheel 9 is designed as a friction wheel, which can run on running surfaces 5a, 5b of the rails 5, 6, 7.
    FIG. 2b shows a schematic cross-section of a pull-out guide 4, wherein the carcass rail 5, the middle rail 6 and the drawer rail 7 are shown. As in Fig. 2a, the relative movement of the rails 5, 6, 7 is determined by a positive control 10, wherein a first Synchronisationsrad 9 on the one hand with a tread 5b of the drawer rail 7 and a second synchronization 9a with a running surface 5a of the carcass rail 5 cooperates , The two synchronization wheels 9, 9a are coupled with each other for movement. The invention is now based on the effect that the positive control 10 can be reversibly reversed by an overload safety device 11, provided that the "I * *" 6 force acting on the positive control 10 or the torque occurring exceeds a predetermined threshold value. If, for example, the middle rail 6 is blocked by an object in its movement, the overload protection 11 triggers, as a result of which the middle rail 6 is decoupled from the movement of the drawer rail 7 and thus damage to the positive control 10 is prevented. A blocking of the movable rails 6, 7 can be triggered in particular by stored in the furniture body 2 storage property.
    2 c shows an alternative positive control 10, wherein a first synchronization wheel 9 cooperates on the one hand with a running surface 5 b of the drawer rail 7 and a second synchronization wheel 9 a with at least one carriage 12 displaceably mounted between the body rail 5 and the middle rail 6. The carriage 12 has in a known manner a plurality of rolling elements 12 a, which are provided for transmitting the load of the drawer 3. The two synchronization wheels 9, 9a are motion-coupled, but the force flow can be reversibly separated by an overload protection 11.
    2d shows a further embodiment possibility of a positive control 10, which on the one hand cooperates with a carriage 12 displaceably mounted between the carcass rail 5 and the middle rail 6 and on the other hand with a carriage 13 displaceably mounted between the middle rail 6 and the drawer rail 7. The two carriages 12, 13 have rolling elements 12a, 12b. The synchronization wheels 9, 9a acting between the carriages 12, 13 are motion-coupled with each other, but can be decoupled from each other when a defined force or a predetermined torque is exceeded by an overload protection 11. By a forced coupling of the two carriages 12, 13, the relative movement of the rails 5, 6, 7 can be set in an indirect manner.
    3a shows a perspective view of a pull-out guide 4 with the body rail 5 to be fastened to the furniture body 2 (FIG. 1), wherein at least one middle rail 6 and one drawer rail 7 are movably mounted relative to the carcass rail 5.
    3b shows a sectional view of the pull-out guide 4 with the carcass rail 5, the middle rail 6 and the drawer rail 7. On the underside of the drawer rail 7 is a tread 5b - arranged or formed - for example in the form of a rack - which is connected to one of the middle rail rotatably mounted synchronization wheel 9. The Synchronisationsrad 9 is mounted at a first end of the shaft 8, which passes through the middle rail 6 at a recess. At a second, opposite end of the shaft 8, a second Synchronisationsrad 9a is mounted, which cooperates with a displaceably mounted between the carcass rail 5 and the center rail 6 carriage 12 via a arranged on the carriage 12 or trained tread 5a in the form of a rack. It can be seen that the synchronization wheel 9 is embodied in at least two parts and comprises locking wheels 14a and 14b inserted into one another, which are connected to one another via static friction and / or via at least partial positive locking. The inner synchronization wheel 9a is non-rotatably connected to the ratchet wheel 14b via the shaft 8. In normal operation, there is no relative movement between the two ratchet wheels 14a, 14b, i. upon movement of the drawer rail 7, the first sync wheel 9 and the second sync wheel 9a move at the same speed. When a defined torque is exceeded, however, the two locking wheels 14a, 14b can rotate relative to each other, whereby the power flow between the two synchronization wheels 9, 9a is reversibly separated.
    Fig. 4 shows the center rail 6 in cross section, wherein the synchronization wheel 9 is mounted on an outer side of the middle rail 6, which has the two locking wheels 14a and 14b. In the embodiment shown, the synchronization wheel 9 can interact with a running surface 5b of the drawer rail 7, while the smaller synchronization wheel 9a mounted on the opposite end of the shaft 8 can interact with a carriage 12 which is slidably mounted between the body rail 5 and the center rail 6. To recognize is still mounted on the central rail 6 support roller 15, which is provided for guiding and supporting the drawer rail 7.
    5 shows an exploded view of a part of the positive control 10, which is arranged in the mounting position via a bearing part 16 on the middle rail 6. On an inner side of the center rail 6, the synchronization wheel 9a cooperating with the carriage 12 is mounted, while on one outer side of the middle rail 6, the synchronization wheel 9 is seated on a common shaft 8. The synchronization wheel 9 comprises two locking wheels 14a and 14b, which engage with each other via static friction and / or positive engagement. The inner ratchet wheel 14b has a non-circular cross section, wherein the peripheral surface of the ratchet wheel 14b may have the shape of a polygon in cross section. The ratchet wheel 14b is substantially completely inserted into the ratchet wheel and interacts therewith with the ratchet wheel. FIG Gears or corrugations in engagement. When exceeding a predetermined torque slip through the two locking wheels 14a, 14b, whereby the power flow between the
    Synchronization wheels 9, 9a is disconnected.
    Fig. 6a shows a perspective view of the clutch 25 with the two locking wheels 14a and 14b, wherein the ratchet wheel 14b is to be inserted in a recess 20 of the ratchet wheel 14a. In mounting position, the outer surface 21 of the ratchet wheel 14b is connected to an inner surface 22 of the recess 20 in connection, said connection may be at least partially positively and / or at least non-positively. If a tolerable torque is exceeded, the two locking wheels 14a, 14b can rotate relative to each other, whereby the power flow is reversibly separable. Fig. 6b shows a part of the positive control 10 in a perspective view.
    FIG. 7a shows a section of the pull-out guide 4 in a perspective view, wherein the drawer rail 7 is shown in a partially cut-away view. Recognizable is the rotatably mounted Synchronisationsrad 9 in the form of a gear, which cooperates with a arranged on the underside of the drawer rail 7 tread 5b in the form of a rack. The synchronization wheel 9 may have the overload protection 11 described, but it is of course possible, the overload protection 11 - even detached from the synchronization 9 - to arrange at other locations along the power train.
    An alternative embodiment of an overload protection 11 is to perform the synchronization wheel 9 without the described locking wheels 14a, 14b and instead to arrange a designed as a running surface 5a, 5b rack relative to that rail to which it is attached to arrange slidably. The toothed rack can be held in a first position by a preferably exerting holding device, the toothed rack, after overcoming the force and releasing the holding device, being movable into a second position which is opposite the first position in the longitudinal direction of the rails 5, 6, 7 is offset. In this embodiment, when a predetermined force is exceeded, a decoupling is brought about by a displacement of the rack relative to the rail to which it is attached. To guide the rack, a guide on a rail 5, 6, 7 may be provided, along which the rack is linearly movable after the release of the overload protection 11. 9 9 * t η · ft M * ft · ft ft ft · · · ft · · · · · · ft · ft
    FIG. 7b shows a cross-section of the drawer pull-out guide 4 in a perspective view, wherein the drawer rail 7 which can be moved in the pull-out direction X is in the fully open position. In the rear end region, the drawer rail 7 has a known according to the prior art bearing element 17 which is provided as Einschubbegrenzung the drawer 3 when mounted on the drawer extension guide 4 and for adjusting the position of the rear portion of the drawer 3, so that the outer joint pattern of the drawer. 3 is adjustable. At the bottom of the drawer rail 7, a tread 5b is attached in the form of a rack, which can extend in the withdrawal direction 30 of the shute 7 from the rear end portion over more than half the length of the drawer rail 7. On the middle rail 6, the synchronization wheel 9 is mounted, which cooperates with the running surface 5b of the drawer rail 7. The Synchronisationsrad 9 is mounted on a - preferably horizontal - shaft 8, which passes through the middle rail 6 at a recess. Good visibility is also the ratchet wheel 14b, which forms part of the overload protection 11. On the shaft 18 and the smaller synchronization wheel 9a is mounted, which cooperates with a arranged on the carriage 12 or trained rack. Visible is also the upper carriage 13, which is slidably mounted between the middle rail 6 and the drawer rail 7 and the rotatably mounted on the center rail 6 support roller 15th
    In order to correct any possible misalignment of the rails 5, 6, 7 and / or the carriages 12, 13 after the release of the overload protection 11, the pull-out guide 4 is moved by a user either to the full open position or to the full closed position. As a result, the carriage 12, 13 is moved either to a front or to a rear end stop of the pull-out guide 4, wherein the overload protection 11 allows a correction of the control, without causing gears, racks and / or cables are damaged.
    The present invention is not limited to the embodiments shown, but includes and extends to all variants and technical equivalents that may fall within the scope of the following claims. The position information chosen in the description, such as "top", "bottom", "side", etc., based on the usual mounting position of the components used as well as on the figure and are in a change in position mutatis mutandis to the new situation transfer.
    Innsbruck, on August 20, 2010
    权利要求:
    Claims (12)
    [1]
    1. Pull-out guide (4) for drawers (3) with one on one Furniture body (2) to be fastened carcass rail (5), one to the drawer (3) to be fixed drawer rail (7) and between the carcass rail (5) and the drawer rail (7) movably mounted center rail (6), wherein the relative movement of the Rails (5, 6, 7) via a positive control (10) is fixed, characterized in that an overload protection (11) is provided, by which the positive control (10) of the rails (5, 6, 7) can be reversibly canceled.
    [2]
    2. Pull-out according to claim 1, characterized in that the positive control (10) between the rails (5, 6, 7) of the pull-out guide (4) is effective.
    [3]
    3. pull-out according to claim 1, characterized in that the positive control (10) on the one hand on a between the rails (5, 6, 7) movably mounted carriage (12, 13) and on the other hand on at least one rail (5, 6, 7) attacks.
    [4]
    4. pull-out according to claim 1, characterized in that the positive control (10) on the one hand with a between the carcass rail (5) and the center rail (6) slidably mounted carriage (12) and on the other hand with a between the middle rail (6) and the drawer rail (7) slidably mounted carriage (13) cooperates.
    [5]
    5. Pull-out according to one of claims 1 to 4, characterized in that the overload protection (11) has at least one, preferably self-switching, clutch (25).
    [6]
    6. pull-out according to claim 5, characterized in that the coupling (25) has at least two locking wheels (14a, 14b), which remain below each other in a predetermined torque in their relative position and which are rotatable relative to each other above a predetermined torque. 68501-21 / hn • I # · * ·· · ** «• * * * * ····· * I •» l * * * * * * 2
    [7]
    7. pull-out according to claim 6, characterized in that the latching wheels (14a, 14b) are connected by friction and / or at least partial positive engagement with each other.
    [8]
    8. pull-out according to claim 6 or 7, characterized in that a ratchet wheel (14 b) in a recess (20) of the other ratchet wheel (14 a) is inserted.
    [9]
    9. Pull-out guide according to claim 8, characterized in that a ratchet wheel (14b) has an outer surface (21) which is in communication with an inner surface (22) of the other ratchet wheel (14a).
    [10]
    10. Pull-out guide according to one of claims 1 to 9, characterized in that the positive control device (10) has at least one Synchronisationsrad (9), which is preferably rotatably mounted on the middle rail (6) on a shaft (8), wherein the Overload protection (11) is part of this synchronization wheel (9).
    [11]
    11. Pull-out according to claim 10, characterized in that the synchronization wheel (9) is designed as a gear.
    [12]
    12. Furniture with at least one drawer, which is mounted on a pull-out according to one of claims 1 to 11 movable relative to a furniture body. Innsbruck, on August 20, 2010
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    CN108433405A|2017-02-16|2018-08-24|苏树鹏|Down-mounting type slide rail group|
    CN107048776A|2017-05-08|2017-08-18|东莞市博锐特五金塑胶制品有限公司|A kind of gear mechanism railroad|
    TWI698202B|2019-04-23|2020-07-11|川湖科技股份有限公司|Slide rail assembly|
    US11168770B2|2019-05-23|2021-11-09|Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Bamberg|Vehicle drive mechanism|
    法律状态:
    2018-04-15| MM01| Lapse because of not paying annual fees|Effective date: 20170823 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1402/2010A|AT510361B1|2010-08-23|2010-08-23|EXTRACTION GUIDE FOR DRAWERS|ATA1402/2010A| AT510361B1|2010-08-23|2010-08-23|EXTRACTION GUIDE FOR DRAWERS|
    MYPI2013000139A| MY156268A|2010-08-23|2011-07-05|Pull-out guide for drawers|
    EP11738386.9A| EP2608697B1|2010-08-23|2011-07-05|Pull-out guide for drawers|
    PCT/AT2011/000293| WO2012024703A1|2010-08-23|2011-07-05|Pull-out guide for drawers|
    CN201180035971.4A| CN103025208B|2010-08-23|2011-07-05|Pull-out guide for drawers|
    ES11738386.9T| ES2457290T3|2010-08-23|2011-07-05|Drawer removal guide|
    JP2013525080A| JP5985479B2|2010-08-23|2011-07-05|Extending guide for drawer|
    US13/741,749| US9044088B2|2010-08-23|2013-01-15|Pull-out guide for drawers|
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