Pull-out locking device for drawers

The pull-out locking device addresses the inefficiency of high force requirements by enabling easy drawer pull-out with a pivoting locking part and retaining spring, ensuring low effort and high resistance to forced opening.

EP4182528B1Active Publication Date: 2025-09-03FULTERER AG & CO KG
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Patent Information

Application Number
EP2021739682
Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-07-15
Filing Date
2021-07-06
Publication Date
2025-09-03
Estimated Expiration
2041-07-06

AI Technical Summary

Technical Problem

Existing pull-out locking devices for drawers require high pull-out force when in use and high resistance to forced opening, making them cumbersome and inefficient.

Method used

A pull-out locking device with a locking part that pivots about a pivot axis, allowing a residual pull-out distance even in the locked state, and a retaining spring that minimizes the force required for release while providing high resistance to forced opening.

Benefits of technology

The device allows easy pulling out of drawers with minimal user effort while maintaining high resistance to forced opening, using a pivoting locking part and a retaining spring to manage the locking mechanism.

✦ Generated by Eureka AI based on patent content.

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Abstract

A pull-out locking device for drawers (6) comprises bolt units (8) associated with a particular one of the pull-out guides (7), each of which bolt units comprises a bolt part (10) that is mounted so as to be movable between a passive position and an actuation position, wherein the bolt parts (10) interact with a cable-like element (12) or with a particular push element (30) of a combination of push elements. When the pull-out locking device is locked, a particular pull-out rail (3) can be pulled out over a remaining portion that is less than 1 / 5 of the pull-out portion, with a retaining spring (10b) being deformed. When the pull-out locking device is locked, a locking portion (10g) is at least at the end of the remaining portion in a locked position and rests against a locking surface (21c) that is moved together with the pull-out rail (3). When the pull-out locking device is released, the locking portion (10g) is at least at the end of the remaining portion in a released position in which the locking surface (21c) and the locking portion (10g) move past one another when the pull-out rail (3) is pulled out further.
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Description

[0001] The invention relates to a pull-out locking device for drawers, comprising at least two pull-out guides, each of which has a carcass rail which can be attached to a common furniture carcass and a pull-out rail which can be attached to a respective one of the drawers and which can be extended in a pull-out direction over a pull-out distance from a closed position to a pull-out position, locking units assigned to a respective one of the pull-out guides, each of which has a base body attached to the carcass rail and a locking part which is movably mounted by the base body between a passive position and an actuated position, wherein the locking parts interact with a cable-like element of the pull-out locking device or with a respective thrust element of a thrust element assembly of the pull-out locking device,wherein, in a release state of the pull-out locking device, when one of the pull-out rails is pulled out, the associated locking part is adjusted from the passive position to the actuating position by an actuating part that moves with this pull-out rail at least over an initial part of the pull-out distance, whereby the cable-like element in the region of the locking part is deflected by the locking part or the push rod with which the locking part interacts is displaced by the locking part, and wherein, in a blocking state of the pull-out locking device, an adjustment of the locking parts of the pull-out rails in the closed position from the passive position towards the actuating position is blocked by the cable-like element or by the push element interacting with the respective locking part.

[0002] Pull-out locking devices are used to prevent only one drawer from being pulled out at a time when several drawers are arranged one above the other, while the others are locked. In addition to or instead of this, pull-out locking devices can be used to prevent the drawers from being pulled out of the furniture body when all drawers are closed.

[0003] A conventional pull-out locking device of the type mentioned above is disclosed, for example, in EP 1 500 763 A2. Each of the stacked pull-out guides, by means of which the drawers can be pulled out of the furniture carcass, is assigned a locking unit. This has a base body attached to the respective carcass rail, on which a locking part is slidably mounted. The locking parts interact with push rods of a push rod assembly. If one of the pull-out rails of the pull-out guides is pulled out while the pull-out locking device is in the release state, the locking part is moved from a passive position to an actuated position, in which the push rod interacting with this locking part is raised together with any push rods located above it. This prevents any push rods located below from being raised.Since the topmost push rod now rests against a stop, lifting of the push rods above them is also no longer possible. The extension of a pull-out rail of another pull-out guide is thus blocked by the push rods. To lock all drawers in the closed position, the topmost push rod can be blocked against lifting by a locking unit. In this previously known pull-out locking device, the locking part is arranged on a carriage, which is acted upon by a retraction spring. Furthermore, a tilting part is arranged on the carriage, which interacts with an actuating part arranged on the pull-out rail. In the passive position of the locking part, the actuating part is coupled to the tilting part.In the actuating position of the locking part, the tilting part is tilted, and the actuating part can decouple from the tilting part. Retraction of the locking part is blocked by a retaining surface of the tilting part engaging the base body. When the drawer is inserted, the actuating part engages the tilting part and releases the connection between the retaining surface and the base body. The actuating part is then retracted into the passive position by the retraction spring. This also retracts the drawer. The pull-out locking device is thus combined with self-retracting devices for the drawers.

[0004] To be able to withstand the forced removal of a locked drawer, the push rods must be sufficiently stable and solid. Therefore, the user must exert a corresponding amount of force to lift the push rods when pulling out the drawer.

[0005] Pull-out locking devices are also known, e.g. from US 2004 / 100166 A, in which the locking parts do not interact with push rods but with a cable-like element. This can be a steel cable or a textile band, for example. When a locking part is adjusted from the passive position to the actuated position, the cable-like element is deflected by the locking part in the area of ​​the locking part. A first end of the cable-like element is immovably connected to the furniture body. The second end is held so that it can be moved to a limited extent against the force of a (weak) tension spring. After being deflected by a locking part in the actuated position, this second end rests against a stop, thus blocking the extension of another pull-out rail. In order to lock all drawers when pushed in, the movement of the second end of the cable-like element can be blocked by means of a locking unit.To secure a locked drawer against forced removal, the rope-like element must be designed to absorb a sufficiently large pulling force, ideally without stretching the rope-like element. Due to the resulting relatively large diameter, the deflection of the rope-like element by the locking part requires a corresponding amount of force, which the user must exert when pulling out one of the drawers.

[0006] Furthermore, pull-out locking devices are known in which the locking parts interact with other than rod-shaped, in particular rotatable, sliding elements, for example from WO 2011 / 146952 A1. A series of such sliding elements are arranged adjacent to one another in a vertical guide rail. By rotating one of the sliding elements by adjusting the locking part from the passive to the actuated position, the sliding parts arranged above this sliding part are pushed upward. A free space arranged above the uppermost sliding part is thus used up, so that no further sliding parts can be rotated and thus the other drawers are locked against being pulled out.

[0007] The object of the invention is to provide an advantageous pull-out locking device of the type mentioned above, in which the pull-out force required by the user when pulling out a drawer can be kept low, while still providing a high resistance force against the forced opening of a locked drawer. According to the invention, this is achieved by a pull-out locking device having the features of claim 1.

[0008] In the pull-out locking device according to the invention, each of the pull-out rails in the closed position can still be pulled out a certain residual distance even when the pull-out device is in the locked state. This residual distance is less than one-fifth, preferably less than one-tenth, particularly preferably less than one-fiftieth, of the pull-out distance. A preferred value for the residual distance is in the range from 1 mm to 10 mm. To enable pulling out over this residual distance despite blocking adjustment of the associated locking part from the passive position towards the actuated position, a retaining spring is deformed, which is arranged in a force transmission path between the locking part and the base body, on which the locking part is movably mounted.When the pull-out locking device is in the locked state, further extension of the pull-out rail beyond the remaining distance is blocked by a locking section arranged on the locking part or connected to it coming into contact with a locking surface that moves with the pull-out rail. This locking section is therefore in a locked position. In contrast, when the pull-out locking device is released, when one of the pull-out rails is pulled out from the closed position, the locking section is in a release position at least at the end of the remaining distance, in which the locking surface and the locking section move past each other as the pull-out rail is pulled out further. The pull-out of a respective pull-out rail is therefore possible when the pull-out locking device is in the release position.

[0009] The interaction of the locking parts with the cable-like element or the respective sliding element does not serve to actually block the extension of the pull-out rail or the drawer connected to it when the pull-out locking device is in the locked state; rather, this occurs when the locking surface, which moves along with the pull-out rail, comes into contact with the locking section. The position of the locking section is controlled by the pull-out rail being pulled out over the remaining distance, depending on whether this pulling out takes place in the release state or in the locked state of the pull-out locking device, with the locking part performing a different type of movement in the two states, or a movement in one state and no movement in the other. The force required to prevent a drawer from being opened by force does not therefore have to be generated by the cable-like element or the sliding element combination.The drawer element assembly can thus be designed relatively delicately, while still providing a high degree of resistance to forced opening of a drawer. The force required to open a drawer when the pull-out locking device is released can thus be kept to a minimum.

[0010] The retaining spring is advantageously dimensioned so strongly that when a pull-out rail is pulled out in the release state of the pull-out locking device and the associated adjustment of the locking part from the passive position to the actuated position, the retaining spring is not deformed.

[0011] In one possible embodiment of the invention, the locking part is mounted on the base body so as to be pivotable about a pivot axis that is preferably parallel to the extension direction, and the adjustment between the passive position and the actuated position takes place by pivoting about the pivot axis. In such an embodiment, it can advantageously be provided that the pivot axis can be displaced relative to the base body against the force of the retaining spring in a direction perpendicular to the pivot axis. If, with the pull-out locking device in the locked state, one of the drawers is pulled out over the remaining distance, the locking part can thus pivot while deflecting the pivot axis, specifically about an axis that is formed by the contact point of the locking part on the cable-like element or on the respective sliding element.

[0012] The locking surface that interacts with the locking section in the locking position of the locking section can advantageously be arranged on the respective associated actuating part. An arrangement on the respective associated pull-out rail or a part that is immovably connected to it with respect to the pull-out direction is also possible.

[0013] Each actuating part can be formed integrally with the respective pull-out rail, i.e., be formed from a section of the pull-out rail. In an advantageous embodiment, however, the actuating parts are formed from separate parts that are only moved along with the pull-out rail over an initial part of the pull-out distance. Advantageously, the actuating parts can be movably mounted by the base bodies between a home position and a standby position and can each interact with a driver device that moves along with the respective pull-out rail over the entire pull-out distance. When the associated pull-out rail is inserted, the respective actuating part assumes the home position, in which the associated driver device is coupled to the actuating part.When the associated pull-out rail is extended, the actuating part is moved by the driver device into the standby position, in which the driver device decouples from the actuating part and in which the actuating part remains during further extension of the pull-out rail. The actuating part can be a tilting slide of a self-retracting device. For this purpose, a retraction spring acting on the actuating part would be present, which automatically retracts the pull-out rail upon insertion after the driver device is coupled to the actuating part. Self-retracting devices operating in this manner are well known.

[0014] A pull-out locking device according to the invention can conventionally comprise a locking unit, by means of which the pull-out locking device can be adjusted from the release state to the locked state when all pull-out rails are in the closed position. For this purpose, the locking unit can deflect the cable-like element, block the movement of a movably mounted end of the cable-like element, or block the movement of the sliding elements of the sliding element assembly.

[0015] In an advantageous embodiment of the invention, the contact surface of a respective locking part, which cooperates with the rope-like element or the respective thrust element of the thrust element assembly, moves in a direction which is at least substantially perpendicular (i.e. in a range of 90° + / - 15°) to the extension direction during adjustment from the passive position to the actuating position.

[0016] When reference is made to a rope-like element in this document, this refers to any elongated, flexible element that can absorb a tensile force, but not a compressive force, in the longitudinal direction of the element. This can be, for example, a rope, e.g., a steel rope or plastic rope, a thread, a tape, e.g., a textile tape or plastic tape, or a chain.

[0017] The locking section can be a section of the one-piece locking part. However, it is also conceivable and possible to design it as a separate part, coupled to the locking part and adjusted by the locking part itself.

[0018] For the purposes of this document, the "locking position" of the locking section refers to any position of the locking section in which it overlaps the locking surface with respect to the extension direction, i.e., at the end of the extension of the associated extension rail over the remaining distance, it would come into contact with the locking surface. For the purposes of this document, the "release position" of the locking section refers to any position of the locking section in which it does not overlap the locking surface with respect to the extension direction, i.e., at the end of the remaining distance, the locking surface runs past the locking section when the associated extension rail is extended.

[0019] Whenever "front" and "back" are mentioned in this document, this refers to the direction of extension.

[0020] Further advantages and details of the invention are explained below with reference to the accompanying drawings, in which: Fig. 1 shows an embodiment of a pull-out locking device according to the invention with, for example, three pull-out guides arranged one above the other, with all pull-out rails in the closed position, in an oblique view; Fig. 2 shows an enlarged detail of Fig. 1 ; Fig. 3 a representation analogous Fig. 1 in the extended position of one of the extension rails; Fig. 4 an enlarged detail of Fig. 3 ; Fig. 5 a representation analogous Fig. 1 in the closed position of all pull-out rails, but in the locked state of the pull-out locking device by locking by means of the lock unit; Fig. 6 an enlarged detail of Fig. 5; Fig. 7 an enlarged detail in the area of ​​the rear end of a pull-out rail in the closed position; Fig. 8 an enlarged detail in the area of ​​the rear end of a pull-out rail in an intermediate position; Fig. 9 a front view of one of the pull-out guides with sections of a furniture carcass to which the carcass rail is attached, and a drawer to which the pull-out rail is attached; Fig. 10 one of the pull-out guides in the disassembled state of the rails with the locking unit attached to the carcass rail and a section of the cable-like element; Fig. 11 an oblique view of one of the locking units onto the side of the locking unit facing the carcass rail with a section of the cable-like element, in the basic position of the actuating part; Fig. 12 a representation analogous Fig. 11in the waiting position of the actuating part; Fig. 13 an exploded view of the locking unit and the section of the rope-like element; Fig. 14 an oblique view of the locking part on the side of the locking part facing the base body; Fig. 15 a plan view of the locking part, with the retaining spring shown in solid lines in the deformed state and in dashed lines in the undeformed state (without the action of an external force); Fig. 16 a plan view of the locking unit in the basic position of the actuating part; Fig. 17 a front view of the locking unit in the basic position of the actuating part together with the rope-like element; Fig. 18 a section along the line BB of Fig. 17 ; Fig. 19a section along the line CC of Fig. 17 ; Fig. 20 a section analogous Fig. 19in the waiting position of the operating part; Fig. 21 a front view of the locking unit in the state it assumes after the extension rail has been pulled out over the remaining distance, together with the rope-like element; Fig. 22 a section along the line DD of Fig. 20 ; Fig. 23 an oblique view of the base part, cut apart in the longitudinal center and the housing parts pulled apart, and the actuating part; Fig. 24 a representation analogous Fig. 23 from a different viewing direction; Fig. 25 a section along the line AA of Fig. 16 ; Fig. 26 an oblique view of a part of the locking unit in the area of ​​the rear end in the basic position of the actuating part; Fig. 27 and 28 representations analogous Figs. 25 and 26 after the associated pull-out rail has been pulled out over the remaining distance in the release state of the pull-out locking device; Fig. 29 and 30 representations analogous Figs. 27 and 28after the associated pull-out rail has been pulled out over the remaining distance in the locked state of the pull-out locking device; Figs. 31 to 35 schematic representations of further embodiments of the invention.

[0021] A first embodiment of the invention is shown in the Fig. 1 to 30 Shown is a pull-out locking device for drawers according to the invention, wherein parts of the pull-out locking device are integrated into several pull-out guides 7 arranged one above the other.

[0022] In the illustrated embodiment, the pull-out guides each comprise a cabinet rail 1, a center rail 2, and a pull-out rail 3. The pull-out guides are designed as differential pull-out guides, in which the center rail 2 travels half the distance of the pull-out rail 3 when extended and retracted. As shown, all the rollers can be arranged on the center rail 2. The pull-out guides can be designed in a conventional manner, and the arrangement of the rollers and their function need not be explained in detail here.

[0023] A pull-out locking device according to the invention can also be integrated into other types of pull-out guides, for example also into pull-out guides which have only one body rail and one pull-out rail.

[0024] The respective pull-out rail 3 is pulled out from the fully inserted state in a pull-out direction 4, and the pull-out rail 3 is pushed in opposite to the pull-out direction 4.

[0025] Only in Fig. 9 a section of a furniture body 5 is shown, to which the body rails 1 of the pull-out guides 7 are to be mounted. In addition, Fig. 9 a part of a drawer 6 is shown, on which the pull-out rail 3 of the Fig. 9 shown pull-out guide 7. The pull-out rails 3 of the other pull-out guides 7 are mounted on drawers 6 in a similar manner.

[0026] A locking unit 8 is mounted on each of the extension guides 7. For this purpose, a base body 9 of the respective locking unit 8 is fixed to the cabinet rail 1, specifically in the area of ​​a rear end of the cabinet rail 1.

[0027] A locking part 10 is movably mounted on the base body 9, specifically in the exemplary embodiment about a pivot axis 11 parallel to the extension direction 4. The pivot axis 11 is itself movable, as explained further below, and can be displaced in a direction perpendicular to the extension direction 4. The pivot axis 11 could thus also be referred to as a pivot-slide axis.

[0028] The pull-out locking device comprises a cable-like element 12, which is designed, for example, in the form of a steel cable. The locking parts 10 of all locking units 8 interact with this cable-like element 12. In the exemplary embodiment, the cable-like element 12 is arranged next to the respective locking part 10 in a direction perpendicular to the pull-out direction 4.

[0029] The rope-like element 12 is immovably connected to the furniture body 5 at a first end, in the exemplary embodiment by means of a connecting piece 13. The body rails 1 and the first end of the rope-like element 12 are thus stationary relative to one another in the assembled state of the pull-out locking device.

[0030] The second end of the rope-like element is suspended with limited mobility. After being moved a certain distance in the direction of the first end, the mobility of the second end is exhausted and further movement in the direction of the first end is no longer possible. For this purpose, in the exemplary embodiment, the second end is attached to an end piece 14, which is attached to a suspension part 16 by a tension spring 15. The tension spring 15 keeps the rope-like element 12 taut. After the end piece 14 has been moved the certain distance in the direction of the first end of the rope-like element, the end piece 14 strikes a stop part 17 that is fixedly mounted to the furniture body 1. The rope-like element 12 is guided through a slot in the stop part 17.

[0031] A lock piece 18 of a lock unit 19 further interacts with the rope-like element 12. The suspension part 16 and the stop part 17 can be components of a base part 20 of the lock unit. The lock piece 18 is rotatably mounted in the base part 20.

[0032] In the closed position of all extension rails 3, the locking parts 10 of all locking units 8 are in the passive position. In the passive position of all locking parts 10 and in the open state of the lock unit 19, the self-retracting device has a release state. In the release state, the cable-like element 12 is not deflected by the locking parts 10, thus runs straight through the locking units 8 and / or past them. The cable-like element 12 is also not deflected by the lock piece 18 in the release state of the pull-out locking device. In the exemplary embodiment, the cable-like element runs straight between the connecting piece 13 and the end piece 14. This state is shown in the Fig. 1 and 2 shown.

[0033] In the Fig. 3 and 4The state is shown after one of the pull-out rails 3 has been pulled out into the extended position. The locking part 10 of the locking unit 8 mounted on the cabinet rail 1 of this pull-out guide 7 is now in an actuating position in which it deflects the cable-like element 12 in the area of ​​this locking part 10, as is shown, for example, in Fig. 27can be seen. The adjustment of the locking part 10 from the passive position to the actuated position is achieved by pivoting about the pivot axis 11, whereby the cable-like element 12 is deflected by being carried along by the locking part 10, which bears against the cable-like element 12 with a contact surface 10d. Above and below the locking part 10 of a respective locking unit 8, the base body 9, on which the locking part 10 is mounted, has cable guide sections 9a, 9b, against which the cable-like element 12 is pressed by the locking part 10 in the actuated position of the locking part 10, whereby a vertical course of the cable-like element 12 above and below the cable guide sections 9a, 9b is achieved even in the actuated position of the locking part 10. In the exemplary embodiment, the cable guide sections 9a, 9b have slots through which the cable-like element 12 runs.

[0034] Due to the deflection of the rope-like element 12 in the area of ​​the locking part 10, the second end of the rope-like element 12 has been displaced towards the first end. The end piece 14 thus rests against the stop part 17, as can be seen, for example, from Fig. 4 The pull-out locking device thus assumes the locked state, in which the pull-out rail 3 of another pull-out guide 7 is blocked from being pulled out.

[0035] The locking state of the pull-out locking device can also be achieved in the closed position of all pull-out rails by actuating the lock piece 18 of the lock unit 19. By rotating the lock piece 18, an eccentric section 18a of the lock piece 18 comes into contact with the rope-like element 12 and deflects it, see in particular Fig. 6The end piece 14 is thereby pulled into contact with the stop part 17, thus blocking further deflection of the cable-like element 12. Below the lock piece 18, the lock unit 19 has a cable guide section 19a for the cable-like element 12, which has a slot through which the cable-like element 12 passes, so that the cable-like element 12 runs vertically below the cable guide section 19a even when deflected by the lock piece 18.

[0036] For the passage of the rope-like element 12, horizontal flanges of the body rail 1 of the respective pull-out guide 7 in the exemplary embodiment have slots extending from the rear end of the body rail 1.

[0037] The locking units 8 each have an actuating part 21 which cooperates with the locking part 10 of this locking unit 8 in order to adjust the locking part from the passive position into the actuating position when the associated pull-out rail 3 is pulled out.

[0038] The pivot axis 11 of the locking part 10 is formed in the exemplary embodiment by axle pins 10a of the locking part 10, which engage in axle recesses 9c of the base body 9. The axle recesses 9c are designed in the form of elongated holes. The locking part 10 has resiliently bendable arms, which form a retaining spring 10b. As shown ( Fig. 13) curved projections 10c are arranged, with which the arms 10b rest against contact sections 9g of the base body 9. Without the action of an external force, the retaining spring 10b formed by the arms holds the axle pins 10a in contact with the ends of the axle recesses 9c facing the actuating part 21. The axle pins 10a are displaceable against the force of the retaining spring 10b in the direction away from the actuating part 21.

[0039] An actuating part 21 of a respective locking unit is movably mounted on the base body 9 of this locking unit 8 between a home position and a standby position. In the closed position of the associated pull-out rail 3, the actuating part 21 is in the home position, see. Fig. 7 , 11 , 16 , 17 , 18 , 19 , 25 and 26. When the pull-out rail 3 is pulled out, the actuating part 21 is initially driven by a driver device 22 of the pull-out rail 3, starting from the closed position of the pull-out rail 3, until the actuating part 21 reaches the waiting position. The pull-out rail 3 then assumes an intermediate position between the closed position and the pulled-out position. In the waiting position, the driver device 22 previously coupled to the actuating part 21 can be decoupled from the actuating part 21. When the pull-out rail 3 is pulled out further, the actuating part 21 remains in the waiting position. Fig. 8 , 12 and 20 the actuating part 21 is in the waiting position.

[0040] During the adjustment from the home position to the standby position, the actuating part 21 is displaced in the extension direction 4 and, at least in the final range of this displacement before reaching the standby position, is tilted about an axis perpendicular to the extension direction 4. The actuating part 21 can thus also be referred to as a tilting slide.

[0041] Tilt slides that move in a similar way between a home position and a standby position are also known from self-retracting devices. For this purpose, the tilt slide is urged towards the home position by a retraction spring, and in the standby position, a retaining surface of the tilt slide rests against a stop surface of the base body to prevent the tilt slide from being retracted towards the home position. When the pull-out rail is pushed in from the extended position, the driver device strikes the tilt slide in an intermediate position of the pull-out rail, causing it to pivot and the retaining surface to disengage from the stop surface, allowing the retraction spring to retract the tilt slide to the home position.

[0042] In an analogous manner, in the pull-out locking device according to the invention, a respective retraction spring could interact with the actuating part 21 of a respective locking unit 8, which spring urges the actuating part 21 toward the home position. Thus, the pull-out locking device according to the invention could be combined with a self-retracting device. The retraction of the pull-out rail could also be dampened by a damper.

[0043] The driver device 22, which cooperates with the actuating part 21 and is formed in the region of the rear end of the respective pull-out rail 3, has, in the exemplary embodiment, a slot 3d arranged in a web 3a of the pull-out rail 3, which connects a vertical web 3b of the pull-out rail 3 with a horizontal web 3c of the pull-out rail. The horizontal web 3c forms a track for rollers of the center rail. The web 3a connecting the vertical web 3b with the horizontal web 3c is inclined in the region in front of the slot 3d. In the region behind the slot 3d, this web 3a has a raised web section. The front edge of the slot 3d is therefore lower (closer to the pivot axis of the actuating part 21) than the rear edge.

[0044] In the basic position of the actuating part 21, a projection 21a of the actuating part 21 protrudes into the slot 3d. When the pull-out rail is extended from the closed position, the driver device 22 initially carries the actuating part 21 in the extension direction 4. When the actuating part 21 is carried, it is pivoted shortly before reaching the standby position so far that the projection 21a of the actuating part 21 can move out of the slot 3d. This movement occurs in an intermediate position of the pull-out rail. When the pull-out rail 3 is pushed in from the pull-out position, the driver device 22 is coupled to the actuating part 21 in the intermediate position of the pull-out rail 3. For this purpose, a contact surface 21b of the actuating part 21 runs against the front edge of the slot 3d, whereby the actuating part 21 is pivoted and the projection 21a enters the slot 3d.

[0045] In order to guide the actuating part 21 displaceably and pivotably relative to the base body 9, the actuating part 21 in the exemplary embodiment has two projecting bearing pins 23, 24 on each side. These bearing pins project into guide tracks 25-28, which are arranged in opposite side walls 9d, 9e of the base body 9, see Fig. 23 and 24. The courses of the guide tracks 25, 26 in the two side walls 9d, 9e, into which the bearing pins 23 projecting on both sides engage, correspond to one another. Likewise, the courses of the guide tracks 27, 28 arranged in the two side walls 9d, 9e, into which the bearing pins 24 projecting on opposite sides of the actuating part 21 engage, correspond to one another. The guide tracks 27, 28 run in a straight line parallel to the extension direction 4. The guide track 28 penetrates the side wall 9e of the base body 9 adjacent to the locking part 10. The bearing pin 24 projecting into this guide track 28 interacts with an actuating surface 10e, 10f of the locking part 10 (see Fig. 14 ). The actuating surface has an inclined surface 10e and an adjoining surface section 10f, which runs parallel to the extension direction 4. In the exemplary embodiment, the inclined surface 10e and the surface section 10f are located on the front edge of a projecting strip.

[0046] When one of the pull-out rails 3 is pulled out in the closed position, the locking part 10 of the corresponding locking unit 8 is initially in the passive position. The actuating part 21, which is in the home position, is carried along by the driver device 22 and moved toward the standby position. The bearing pin 24, which extends through the guide track 28, comes into contact with the inclined surface 10e. This pivots the locking part 10 from the passive position into the actuating position. The retaining spring 10b is not deformed. At the end of a first section of the pull-out distance, referred to in this document as the "remaining distance," the locking part 10 is in the actuating position, and the bearing pin 24 has passed through the inclined surface 10e and is located in the area of ​​the beginning of the surface section 10f.

[0047] By adjusting the locking part 10 from the passive position to the actuating position, the cable-like element 12 is deflected in the area of ​​this locking unit 8 by the locking part 10, namely by the contact surface 10d of the locking part 10 moved against the cable-like element 12. Above and below the contact surface 10d are the cable guide sections 9a, 9b of the base body 9. In the deflected state of the cable-like element 12, this runs curved through the cable guide sections 9a, 9b and with an opposite curvature over the contact surface 10d, as can best be seen from Fig. 27 is evident.

[0048] A "deflection" of the cable-like element means that the cable-like element is displaced in the area of ​​the respective locking part relative to a zero position, which it assumes when the pull-out locking device is released. Due to the cable guide sections located above and below the respective locking part, the course of the cable-like element above the upper cable guide section and below the lower cable guide section is not changed.

[0049] Due to the deflection of the rope-like element 12, the end piece 14 rests against the stop part 17 and further deflection of the rope-like element is thereby blocked.

[0050] As this pull-out rail 3 is further extended, the locking part 10 remains in the actuated position (due to the bearing pin 24 resting on the surface section 10f). The actuating part 21 is moved into the standby position, in which the driver device 22 decouples from the actuating part 21, and remains in this position as the pull-out rail 3 is further extended.

[0051] By adjusting the locking part 10 from the passive position to the actuated position, a locking section 10g of the locking part 10 is also adjusted from a locked position to a released position. In the closed position of the extension rail 3, the locking section 10g thus assumes the locked position, in which it overlaps with a locking surface 21c arranged on the actuating part 21 with respect to the extension direction 4. In the locked position of the locking section 10g, it would therefore be located in the area swept over by the locking surface 21c during the movement of the actuating part 21 from the home position to the standby position, and the locking surface 21c would contact the locking section 10g just at the end of the remaining travel of the extension rail.However, since the locking unit 8 has been adjusted into the actuating position at the end of the extension of the extension rail 3 over the remaining distance, the locking section 10g has thus also been adjusted into the release position, in which the locking surface 21c can move past the locking section 10g when the extension rail 3 is extended over the remaining distance.

[0052] By extending one of the extension rails 3 from the closed position to the open position, the extension locking device is moved from the released state to the locked state. This locked state is already present after the extension rail has been extended the remaining distance.

[0053] If the pull-out locking device is in the locked state and an attempt is made to pull out one of the pull-out rails 3 in the closed position, pivoting of the locking part 10 of the associated locking unit 8 from the passive position toward the actuated position is blocked by the contact surface 10d against the cable-like element 12, which cannot be deflected due to the contact of the end piece 14 against the stop part 17. When the bearing pin 24 is displaced along the inclined surface 10e, the retaining spring 10b is deformed (in the exemplary embodiment, the arms forming the retaining spring 10b are bent) and the axle pins 10a are displaced in the axle recesses 9c, specifically in the direction away from the actuating part 21. The locking part 10 thus pivots with the contact point of the contact surface 10d on the rope-like element 12 as the axis, which is parallel to the extension direction 4.During this pivoting, the locking section 10g of the locking part 10 remains in a position in which it overlaps with the locking surface 21c with respect to the extension direction 4, or this overlap even increases slightly. Thus, after the extension of this extension rail 3 has been extended over the remaining distance, the locking section 10g is in the locked position, and at the end of the remaining distance, the locking section 10g comes into contact with the locking surface 21c, thereby blocking further extension of the extension rail 3. This situation is illustrated in the . Figs. 29 and 30 shown.

[0054] The base body 9 has a support surface 9f, which supports the locking portion 10g of the locking part 10, which is in the locked position, on the side opposite the locking surface 21c when the actuating part 21 with the locking surface 21c abuts the locking portion 10g of the locking part 10. The stability of the locking of the locking portion 10g is thereby increased.

[0055] When the pull-out locking device has been placed in the locked state by closing the lock unit 19, the pulling out of any of the pull-out rails in the closed position is blocked at the end of the remaining travel, in exactly the same way as described above for the case where, after pulling out one of the pull-out rails (with the lock in the open state), an attempt is made to pull out another of the pull-out rails.

[0056] The remaining travel is preferably between 1 mm and 10 mm. If the extension rails are locked at the end of the remaining travel, it is impossible to reach into the drawer.

[0057] In the embodiment shown, the pull-out locking device is moved into the locked state by means of the lock unit 19 by a deflection of the rope-like element 12. Instead, a blocking element could also be inserted between the end piece 14 and the stop part 17, so that a deflection of the rope-like element 12 is blocked by the locking part 10 of one of the locking units 8.

[0058] In the exemplary embodiment, the locking surface 21c is arranged on the actuating part 21. During the remaining travel and a subsequent further extension section, the actuating part 21 is carried along by the extension rail 3 (until the waiting position of the actuating part 21 is reached). Alternatively, the locking surface could also be arranged directly on the extension rail 3 or on a part rigidly connected to the extension rail 3.

[0059] In the exemplary embodiment, the locking portion 10g is formed integrally with the locking part 10. Alternatively, the locking portion 10g could also be arranged on a separate part coupled to the locking part 10, so that when the locking part 10 is adjusted, the part comprising the locking portion is adjusted.

[0060] Instead of an actuating part 21, which, as shown, is formed by a one-piece tilting slide, the actuating part 21 could also be formed in two parts, with a slide mounted on the base body 9 for displacement parallel to the extension direction 4 and a tilting part mounted on the slide for pivoting about an axis perpendicular to the extension direction. Such two-part tilting slides are also known in connection with self-retracting devices and also in connection with anti-extension devices, for example, according to the prior art mentioned above.

[0061] The slide or the tilting part could form the actuating part cooperating with the locking part 10 in order to adjust the locking part between the passive position and the actuating position.

[0062] Further possible embodiments of the invention are described in the Fig. 31 to 35 presented in a simplified and highly schematic manner. The differences from the previously described first embodiment of the invention are explained below. Apart from the explained differences, the design corresponds to that of the first embodiment, and the description of the first embodiment together with the described design variants can be applied analogously.

[0063] A second embodiment of the invention is shown in Fig. 31 schematically in cross section (similar Fig. 25). The actuating part 21 is shown schematically as parallel to the pull-out direction 4 between the basic position and the waiting position of a Fig. 31 For the sake of simplicity, a slide is shown that is displaceably mounted on a base body (not shown). A tilting part, not shown in the figure, could be pivotably mounted on this slide for coupling and uncoupling a driver device. However, the actuating part 21 could also be designed in the form of a tilting slide analogous to the tilting slide described in the first embodiment.

[0064] To adjust the locking part 10 between the passive position and the actuating position, an inclined surface is used, which is arranged here on a projection 29 of the actuating part 21. In Fig. 31In the figure, which shows the passive position of the locking part in the release state of the pull-out locking device, the extent of the inclined surface is schematically represented by dashed lines. However, the inclined surface could also be arranged on the locking part 10, analogous to the first embodiment. Conversely, in the first embodiment, the inclined surface could also be arranged on the actuating part 21.

[0065] A further difference from the first exemplary embodiment is that here there is no rope-like element 12 but rather rod-like pushing elements 30 which together form a pushing element assembly with which the locking parts of the locking units assigned to the individual pull-out guides interact, as is known from pull-out locking devices according to the prior art. When one of the pull-out rails is pulled out, the locking part 10 of the assigned locking unit is adjusted by the actuating part 21 from the passive position into the actuating position, here by pivoting about the pivot axis 11. This pivot axis 11 is formed, for example, by at least one axle bolt which engages in one or more respective axle recesses 9c in the base body. When the locking part 10 is pivoted into the actuating position, the inclined contact surface 10d of the locking part 10 acts to lock the upper pushing element and, with it, anyThe sliding elements located further above are raised. As a result, the tips of the locking elements of the locking units located above the locking unit shown come into contact with the side wall of the lower sliding element, and the locking elements are locked against movement from the passive position toward the actuated position. For the locking units shown in . Fig. 31 The push rod shown below and any push rods located underneath prevent lifting when the locking part shown is in the actuated position. Adjustment of locking parts 10 of any locking units located underneath from the passive position toward the actuated position is thereby blocked.

[0066] Instead of a shear element assembly, this embodiment could also feature a cable-like element, similar to the first embodiment. Conversely, the first embodiment could feature a shear element assembly instead of a cable-like element, and the locking parts could be adapted accordingly.

[0067] A shear element assembly could also be made up of shear elements other than rod-shaped ones.

[0068] When in Fig. 31 In the illustrated embodiment, the locking section 10g arranged on the locking part 10 is in the release position when the locking part 10 is in the passive position. When the locking part is moved from the passive position to the actuated position, the release position is maintained.

[0069] However, if, in the locked state of the pull-out locking device, a pull-out rail 3 in the closed position is pulled out and the actuating part 21 is moved along with it, at least initially, an adjustment of the locking part 10 from the passive position towards the actuating position is blocked by the locking element assembly. Over the remaining distance of the pull-out distance, this results in a pivoting of the locking part about the contact point on the respective sliding element 30, whereby the pivot axis 11 is displaced in the at least one axle recess 9c designed as an elongated hole, deforming the retaining spring 31. The retaining spring 31 is shown here as a helical spring which acts between the axle bolt and the base body. As a result of the displacement of the pivot axis 11, the locking section 10g overlaps (relative to the pull-out direction 4) with the locking surface 21c arranged on the actuating part 21.This places the locking section 10g in the locking position. At the end of the remaining travel, the locking surface 21c rests against the locking section 10g, preventing further extension of the extension rail.

[0070] A third embodiment of the invention is shown in Fig. 32 The locking part 10 interacts here with a cable-like element 12. Interaction with a shear element of a shear element assembly would also be conceivable and possible.

[0071] The actuating part 21 is operatively connected to the locking part 10 via a transmission part 32. The inclined surface that adjusts the locking part between the passive position and the actuating position is arranged on the transmission part 32 and interacts with the locking part 10. It would also be conceivable and possible for the inclined surface to be arranged on the locking part 10 and interact with the transmission part 32. The transmission part 32 is slidably mounted in a recess of the actuating part 21 and is pressed against the locking part 10 by a retaining spring 31.

[0072] In the passive position of the locking part 10, a locking section 10g of the locking part 10 is in the locked position. When, in the release state of the pull-out locking device, the associated pull-out rail 3 is pulled out from the closed position and the actuating part 21 is initially carried along in the process, the locking part 10 is moved from the passive position to the actuating position by the inclined surface of the transmission part 32, deflecting the cable-like element 12, over the remaining distance before the locking surface 21c of the actuating part 21 comes into contact with the locking section 10g of the locking part 10; in this embodiment, it is pivoted about the pivot axis 11 for this purpose. The retaining spring 31 is again dimensioned such that it does not yield. At the end of the remaining distance, the locking section 10g is brought out of overlap with the locking surface 21c, and the actuating part 21 can move past the locking part 10.If the illustrated pull-out rail 3 associated with the locking unit is pulled out in the locked state of the pull-out locking device, the cable-like element 12 blocks movement of the locking part 10 from the passive position to the actuated position. Upon pulling out over the remaining distance, the transmission part 32 is pressed into the recess of the actuating part 21 against the force of the retaining spring 31 and deforms the retaining spring 31. The locking section 10g thus remains in the locked position, and at the end of the remaining distance, the locking surface 21c of the actuating part 21 moves against the locking section 10g, blocking further extension of the associated pull-out rail 3. In this embodiment, too, a combination of thrust elements could be provided instead of the cable-like element 12.

[0073] A fourth embodiment of the invention is shown in Fig. 33shown. This embodiment is designed similarly to the third embodiment. Here, too, a transmission part 32 can be pressed into a recess in the actuating part 21 against the force of a retaining spring 31. Likewise, the locking section 10g of the locking part 10 is in its locking position in the passive position of the locking part 10. However, when adjusted between the passive position and the actuating position, the locking part 10 is not pivotable about a pivot axis but is mounted on the base part so that it can be displaced in a straight line at right angles to the extension direction 4. For example, grooves 33, 34 can be provided in the base part 4, into which guide lugs 35, 36 of the locking part 10 engage.

[0074] Here too, a shear element assembly could be provided instead of the rope-like element 12.

[0075] In the third and fourth embodiments, the transmission part 32 could also be displaceably mounted in a recess of the locking part against the force of a retaining spring. The transmission part 32 could then have an inclined surface that interacts with the actuating part 21, or an inclined surface that interacts with the transmission part could be arranged on the transmission part.

[0076] A fifth embodiment of the invention is shown in Fig. 34 The transmission part 32 is here mounted in a recess of the locking part 10 so as to be displaceable against the force of the retaining spring 31 and has an inclined surface that interacts with the actuating part 21.

[0077] In contrast to the previously presented embodiments, the locking section 37 is arranged here on a separate component, which is designed as a pivot arm 38. This pivot arm 38 is pivotally mounted on the transmission part 32 about an axis 39. When the associated pull-out rail is pushed in, the locking section 37 in this embodiment assumes the release position. The locking section remains in this position when the associated pull-out rail is pulled out in the release state of the pull-out locking device, wherein the locking part 10 is adjusted over the remaining distance of the pull-out distance against the cable-like element 12 (instead of which, in turn, a push element assembly could be provided), wherein the cable-like element 12 is deflected and the retaining spring 31 does not yield.If, however, the pull-out rail is pulled out over the remaining distance in the locked state of the pull-out locking device, the transmission part 32 is pressed into the recess in the locking part 10, deforming the retaining spring 31, and the actuating arm 40 of the locking part 10 runs against the pivot arm 38 and pivots it about the axis 39 into the locked position, in which the locking section 37 overlaps with the locking surface 21c on the actuating part 21 with respect to the pull-out direction 4. Further extension of the pull-out rail is then blocked at the end of the remaining distance.

[0078] In the previously described embodiments, the locking part 10 is actuated by an actuating part 21, which is carried along by the respective pull-out rail during extension from the closed position of the pull-out rail, at least over a first portion of the extension, which in any case comprises the remaining distance, and then decouples from the pull-out rail. Alternatively, the actuating part could also be rigidly connected to the pull-out rail or be formed by a portion of the pull-out rail itself.

[0079] A sixth embodiment of the invention is shown in Fig. 35This embodiment is shown in a schematic longitudinal section parallel to the extension direction 4. The respective locking part 10 interacts here with a push element assembly, which is arranged in front of the locking part 10 with respect to the extension direction. Instead of the push element assembly, a cable-like element could also be provided. The locking part is mounted displaceably in a recess of a slide 41 against the force of a retaining spring 31. The slide 41 is supported by a Fig. 35not shown base body of the respective locking unit is mounted displaceably parallel to the extension direction 4, namely from a basic position, which the slide 41 assumes in the closed position of the associated extension rail, to a waiting position, which the slide assumes in the extended position of the associated extension rail 3. The slide 41 is driven by an actuating part 45, which is formed by a part of the extension rail 3 or a part rigidly connected thereto. The actuating part 45 cooperates with a tilting part 42. In the basic position of the slide 41, the tilting part 42 is coupled to the actuating part 45, for example, by the actuating part 45 being located in a recess of the tilting part 42. When the associated extension rail is pulled out and the slide 41 is moved, the tilting part 42 is pivoted until the waiting position of the slide 41 is reached (the pivoting direction is in Fig. 35indicated by an arrow) that the actuating part 45 can decouple from the tilting part 42 in an intermediate position of the extension rail. The slide 41 remains in the standby position during further extension of the extension rail 3. A retaining surface of the tilting part 42 can rest against a contact surface of the base body, thereby blocking the slide from moving back towards the home position. When the slide is moved from the home position to the standby position, the locking part 10 is carried along, whereby the retaining spring 31 is not deformed. The locking part 10 thus moves from the passive position into the actuating position, in which it interacts with the push element assembly or a cable-like element provided instead, and thereby moves the pull-out locking device from the released state to the locked state.

[0080] When the locking part 10 is adjusted from the passive position towards the actuated position, the locking part 10 adjusts a locking section 37, which in this embodiment is again formed by a separate component and is mounted on the base body so as to be displaceable in a direction perpendicular to the extension direction 4, specifically against the force of a pressure spring 43. In the passive position of the locking part 10, the locking section 37 assumes a locking position in which a locking surface 37a of the locking section 37 overlaps with a locking surface 41a arranged on the slide 41 with respect to the extension direction 4.When adjusting the locking part 10 from the passive position toward the actuating position, an adjusting projection 44 of the locking part 10 interacts with an inclined surface 37b of the locking section 37, whereby the locking section is adjusted from the locked position to the release position before the locking surface 41a of the slide engages the locking surface 37a of the locking section 37. Rather, the slide engages the inclined surface 37b of the locking section and can further displace the locking section against the force of the pressure spring.

[0081] When the pull-out rail is retracted from the extended position, the actuating part 45 couples to the tilting part 42 in the intermediate position of the pull-out rail and pivots it, causing the retaining surface of the tilting part 42 to disengage from the contact surface of the base body. The slide 41 can thus be moved back to its home position, and the locking part 10 is moved back to the passive position.

[0082] If a pull-out rail in the closed position is pulled out while the pull-out locking device is in the locked state, the sliding element assembly (or the cable-like element) blocks any adjustment of the locking part 10 from the passive position toward the actuated position. When the slide 41 is adjusted from the home position to the standby position, the locking part 10 thus retracts into the recess until, at the end of the remaining travel, the locking surface 41a of the slide 41 comes into contact with the locking surface 37a of the locking section 37, thus blocking further extension of the pull-out rail.

[0083] It would be conceivable and possible for a retraction spring to interact with the respective slide 41 and urge it toward the home position, thereby creating a self-retracting mechanism for the respective drawer. The retraction can also be dampened by a damper. legend To the reference numbers 1 Carcass rail 12 rope-like element 2 center rail 13 connecting piece 3 Pull-out rail 14 End piece 3a web 15 tension spring 3b Vertical bar 16 Hanging part 3c Horizontal bar 17 Stop part 3d slot 18 Castle piece 4 Pull-out direction 18a Eccentric section 5 Furniture body 19 Lock unit 6 Drawer 19a Rope guide section 7 Pull-out guide 20 Base part 8 locking unit 21 Actuating part 9 Base body 21a projection 9a Rope guide section 21b Contact surface 9b Rope guide section 21c Restricted area 9c axle recess 22 Driving device 9d side wall 23 Bearing journal 9e side wall 24 Bearing journal 9f Support surface 25 Slide track 9g Investment section 26 Slide track 10 Locking part 27 Slide track 10a axle journal 28 Slide track 10b retaining spring 29 projection 10c projection 30 Shear element 10d contact surface 31 retaining spring 10e inclined surface 32 Transmission part 10f Area section 33 Nut 10g Restricted section 34 Nut 11 Swivel axis 35 guide nose 36 guide nose 37 Restricted section 37a Restricted area 37b inclined surface 38 Swivel arm 39 axis 40 Actuating arm 41 Sleds 41a Restricted area 42 Tilting part 43 pressure spring 44 Adjustment lead 45 Actuating part

Claims

1. Pull-out locking device for drawers (6) comprising, at least two pull-out guides (7), which each have a carcase rail (1) which can be attached to a common furniture carcase (5) and a pull-out rail (3) which can be attached to a respective one of the drawers (6) and which can be pulled out in a pull-out direction (4) over a pull-out distance from a closed position into a pull-out position, latch units (8) associated with a respective one of the pull-out guides (7), each having a base body (9) attached to the body rail (1) and a latch part (10) mounted movably by the base body (9) between a passive position and an actuating position, wherein the locking parts (10) interact with a cable-like element (12) of the pull-out locking device or with a respective thrust element (30) of a thrust element assembly of the pull-out locking device, wherein, in a release state of the pull-out locking device, when one of the pull-out rails (3) is pulled out, the associated latch part (10) is displaced from the passive position into the actuating position by an actuating part (21, 45) which is moved along with this pull-out rail (3) at least over an initial part of the pull-out section, as a result of which the cable-like element (12) in the region of the latch part (10) is deflected from the latch part (10) or the thrust element (30), with which the latch part (10) cooperates, is displaced from the latch part (10), and wherein, in a blocking state of the pull-out locking device, when the pull-out rails (3) are in the closed position with which the latch part (10) cooperates, is displaced by the latch part (10), and wherein in a blocking state of the pull-out locking device, when the pull-out rails (3) are in the closed position, a displacement of the latch parts (10) from the passive position in the direction of the actuating position is blocked by the cable-like element (12) or by the push element (30) cooperating with the respective latch part (10), characterized in that in the blocking state of the pull-out locking device, a respective one of the pull-out rails (3) located in the closed position can be pulled out over a residual distance which is less than 1 / 5 of the pull-out distance, a retaining spring (10b, 31) arranged in a force transmission path between the latch part (10) and the base body (9), by which the latch part (10) is mounted, being deformed by the blocking of the displacement of the associated latch part (10) from the passive position in the direction of the actuating position, in that in the locking state of the pull-out locking device, at least after one of the pull-out rails (3) located in the closed position has been pulled out over the remaining distance, a locking section (10g, 37) arranged on the associated latch part (10) or actuated by the latch part (10) is located in a locking position in which it blocks further pulling out of this pull-out rail (3) by bearing against a locking surface (21c, 41a) moving with this pull-out rail (3), and that in the release state of the pull-out locking device, when one of the pull-out rails (3) is pulled out from the closed position, the locking section (10g, 37) is located at least at the end of the remaining distance in a release position in which the locking surface (21c, 41a) and the locking section (10g, 37) move past one another when the pull-out rail is pulled out further.

2. Pull-out locking device according to claim 1, characterized in that, in the closed position of a respective pull-out rail (3), the respective associated locking section (10g, 37) is in the blocking position and, in the release state of the pull-out locking device, reaches the release position when the pull-out rail (3) is pulled out over the remaining distance by the displacement of the latch part (10) from the passive position in the direction of the actuating position and, in the blocking state of the pull-out locking device, is still in the blocking position after the pull-out rail (3) has been pulled out over the remaining distance by the blocking of the displacement of the latch part (10) in the direction of the actuating position.

3. Pull-out locking device according to claim 1, characterized in that in the closed position of a respective pull-out rail (3) the respective associated locking section (10g, 37) is in the release position and in the release state of the pull-out locking device after the pull-out of the pull-out rail (3) over the remaining distance, in which a displacement of the locking part (10) from the passive position in the direction of the actuating position takes place, is still in the release position and in the blocking state of the pull-out locking device when the pull-out rail (3) is pulled out over the remaining distance, in which an adjustment of the latch part (10) in the direction of the actuating position is blocked, is moved into the blocking position by an actuating movement of the latch part (10) or of a transmission part (32) arranged between the latch part (10) and the actuating part (21) and acted upon by the retaining spring (31), which movement is accompanied by the deformation of the retaining spring (10b, 31).

4. Pull-out locking device according to one of claims 1 to 3, characterized in that the adjustment of the respective latch part (10) from the passive position into the actuating position is effected by means of at least one inclined surface (10e).

5. Pull-out locking device according to one of claims 1 to 4, characterized in that the blocking surface (21c, 41a) is arranged on the respective pull-out rail (3) or on a part connected thereto at least via an initial section of the pull-out section, which comprises the residual section, so as to be non-displaceable with respect to the pull-out direction (4).

6. Pull-out locking device according to claim 5, characterized in that the locking surface (21c, 41a) is arranged on the respective actuating part (21).

7. Pull-out locking device according to one of claims 1 to 6, characterized in that the latch part (10) is mounted on the base body (9) so as to be pivotable about a pivot axis (11) and the adjustment between the passive position and the actuating position is effected by pivoting about the pivot axis (11).

8. Pull-out locking device according to claim 7, characterized in that the pivot axis (11) is displaceable relative to the base body (9) against the force of the retaining spring (10b, 31).

9. Pull-out locking device according to one of claims 1 to 8, characterized in that the actuating parts (21) of the base bodies (9) are each mounted movably between a home position and a waiting position and each interact with a driver device (22) which is moved along with the respective pull-out rail (3) over the entire pull-out distance, the respective actuating part (21) assuming the home position in the closed position of the associated pull-out rail (3), in which the associated driving device (22) is coupled to the actuating part (21) and, when the associated pull-out rail (3) is pulled out, is moved by the driving device (22) into the waiting position, in which the driving device (22) is uncoupled from the actuating part (21) and in which the actuating part (21) remains when the pull-out rail (3) is pulled out further.

10. Pull-out locking device according to one of claims 1 to 9, characterized in that a support surface (9f) is arranged on the respective base body (9) or on the respective body rail (1) for supporting the respective locking section (10g) located in the locking position in the event of a force exerted on the locking section (10g) by the associated locking surface (21c).

11. Pull-out locking device according to one of claims 1 to 10, characterized in that the residual distance is 1 mm to 10 mm.

12. Pull-out locking device according to one of claims 1 to 11, characterized in that a respective base body (9) has cable guide sections (9a, 9b) for the cable-like element (12) arranged above and below the point of deflection of the cable-like element (12) by the associated latch part (10).

13. Pull-out locking device according to one of claims 1 to 12, characterized in that, in the closed position of all pull-out rails (3), the pull-out locking device can be adjusted from the release state to the locking state by means of a lock unit (19) by deflecting the cable-like element (12) or by blocking the displaceability of a movably mounted end of the cable-like element (12) or by blocking the displaceability of the sliding elements (30) of the sliding element assembly.

14. Pull-out locking device according to one of claims 1 to 13, characterized in that, when the respective latch part (10) is moved from the passive position into the actuating position, an abutment surface (10d) of the latch part (10), which abuts against the cable-like element (12) or the respective push rod, moves in a direction lying at least substantially at right angles to the pull-out direction (4).

Citation Information

Patent Citations

  • Interlock arrangement for preventing the simultaneous opening of several drawers

    EP1500763A2