Extension lock for drawers

Abstract

A pull-out locking device for a drawer (6) comprises a latch unit (8) arranged on a corresponding pull-out guide mechanism (7), each of which comprises a latching member (10) movably supported between a ready position and an operating position, wherein the latching member (10) cooperates with a rope-type element (12) or a corresponding sliding element (30) of a sliding element complex. In the locked state of the pull-out locking device, the corresponding pull-out guide rail (3) can be pulled out over a remaining stroke less than 1 / 5 of the pull-out stroke, and a retaining spring (10b) is deformed at this time. In the locked state of the pull-out locking device, a locking section (10g) is located in a locking position at least at the end of the remaining stroke and abuts against a locking surface (21c) that moves with the pull-out guide rail (3). In the released state of the extension locking device, the locking section (10g) is located in the released position at least at the end of the remaining stroke, in which position, when the extension guide rail (3) is further extended, the locking surface (21c) and the locking section (10g) move past each other.

Description

Technical Field

[0001] The present invention relates to a pull-out locking device for a drawer, comprising: at least two pull-out guide mechanisms, each of which has a main body guide rail that can be installed on a common furniture body and a pull-out guide rail that can be installed on a respective drawer, wherein the pull-out guide rail can be pulled out from a closed position to a pulled-out position on a pull-out stroke along a pull-out direction; a latch unit configured for each respective pull-out guide mechanism, each of which has a base body installed on the main body guide rail and a latch member supported by the base body, wherein the latch member is supported in such a manner that the latch member can move between a waiting position and an operating position, wherein the latch member cooperates with a rope-type element of the pull-out locking device or with a rope-type element of the pull-out locking device. The corresponding sliding elements in the sliding element complex of the device cooperate with each other, wherein, in the released state of the pull-out locking device, while one of the pull-out guide rails is pulled out, the configured latch is transferred from the ready position to the operating position by an operating element that moves together with the pull-out guide rail at least on a starting part of the pull-out stroke (operated), whereby the rope-type element is offset by the latch in the area of ​​the latch, or the push rod that cooperates with the latch is pushed by the latch; and, in the locked state of the pull-out locking device, the transfer of the latch of the pull-out guide rail located in the closed position from the ready position to the operating position is prevented by the rope-type element or by the sliding element that cooperates with the corresponding latch. Background Art

[0002] The function of the pull-out locking device is that among a plurality of drawers arranged one above the other, only one of the drawers can be pulled out at a time, while preventing the other drawers from being pulled out. Additionally or alternatively, the function of the pull-out locking device is that when all the drawers are in a closed state, the drawers can be locked to prevent them from being pulled out of the furniture body.

[0003] For example, a conventional pull-out locking device of the type described at the beginning is known from EP 1 500 763 A2. Pull-out guide mechanisms arranged one above the other are each equipped with a latching unit, by means of which the drawer can be pulled out of the furniture body. The latching unit has a base body mounted on the corresponding body rail, and a latching member is supported by the base body in a movably manner. The latching member cooperates with a push rod of a push rod complex. If one of the pull-out guide rails of the pull-out guide mechanism is pulled out in the released state of the pull-out locking device, the latching member moves from a waiting position to an operating position, in which the push rod that cooperates with the latching member is lifted together with the push rod that may be located above it. This prevents the lifting of the push rod located below it. Because the top push rod is now against the stopper, the push rod located above it can no longer be lifted. As a result, the pulling out of the pull-out guide rail of the other pull-out guide mechanism is locked by the push rod. In order to lock all drawers in the closed state, a locking unit can prevent the uppermost push rod from being lifted. In this known pull-out locking device, the latching member is arranged on a slide, which is loaded by a retraction spring. In addition, a tilting member is arranged on the slide, which cooperates with an operating member arranged on the pull-out guide rail. In the ready position of the latching member, the operating member is coupled to the tilting member. In the operating position of the latching member, the tilting member is tilted and the operating member can be decoupled from the tilting member. At this time, the latching member is prevented from being pulled back because the retaining surface of the tilting member is against the base. When the drawer is pushed in, the operating member is coupled to the tilting member and releases the connection between the retaining surface and the base, so that the operating member is pulled back to the ready position by the retraction spring. As a result, the drawer is also pulled in. Therefore, the pull-out locking device is combined with a self-retracting device for the drawer here.

[0004] In order to provide enough force to resist the drawer being pulled out violently, the push rod must be constructed to be stable and strong enough. Therefore, in order to lift the push rod, the user needs to spend considerable effort when pulling out the drawer.

[0005] In addition, a variety of pull-out locking devices are known, in which the latch does not cooperate with the push rod, but cooperates with a rope-type element. For example, it can involve a steel wire rope or a textile belt. When the latch is transferred from the ready position to the operating position, the rope-type element is offset by the latch in the area of ​​the latch. The first end of the rope-type element is connected to the furniture body in an immovable manner. The second end is retained in a limited manner that can overcome the force of the (weak) tensioning spring. After the latch is offset in the operating position, the second end is abutted against the stopper, thereby preventing another pull-out guide rail from being pulled out. In order to lock all drawers in the pushed-in state, the movability of the second end of the rope-type element can be prevented by means of a locking unit. In order to ensure that the locked drawer is not pulled out violently, the rope-type element must be constructed to withstand a sufficiently large pulling force while not causing the rope-type element to elongate as much as possible. Due to the relatively large diameter resulting from this, a correspondingly large expenditure of force is required to deflect the cable element through the latching element, which the user has to exert when pulling out the drawer.

[0006] In addition, for example, WO 2011 / 146952 A1 discloses a plurality of pull-out locking devices in which a latching element cooperates with a non-rod-shaped, in particular a rotatable sliding element. A row of such sliding elements is arranged adjacent to one another in a vertical guide rail. By transferring the latching element from the ready position to the operating position, one of the sliding elements is rotated, and the sliding elements arranged above the sliding element are pushed upward. The free space provided above the uppermost sliding element is thus used up, so that the other sliding elements can no longer be rotated and thus the pulling out of the other drawers is locked. Summary of the invention

[0007] The object of the present invention is to provide a pull-out locking device of the type mentioned at the outset, which is advantageous in that the pull-out force that the user needs to apply when pulling out the drawer can be kept low while still providing a high resistance to a forced pulling out of the locked drawer. This object is achieved according to the invention by a pull-out locking device having the features of claim 1.

[0008] In the pull-out locking device according to the present invention, each pull-out guide rail in the closed position can still be pulled out to a certain residual stroke when the pull-out device is locked. The residual stroke is less than one-fifth of the pull-out stroke, preferably less than one-tenth, and particularly preferably less than one-fiftieth. The preferred value of the residual stroke is in the range of 1 mm to 10 mm. In order to achieve the pull-out over the residual stroke even when the associated latching member is prevented from transferring from the waiting position to the operating position, a retaining spring is deformed, which is arranged in the force transmission path between the latching member and the base body, and the latching member is movably supported by the base body. In the locked state of the pull-out locking device, the pull-out guide rail is prevented from being further pulled out beyond the residual stroke by making a locking section arranged on the latching member or connected to the latching member abut against a locking surface that moves with the pull-out guide rail. Then, the locking section is in the locked position. In contrast, in the released state of the extension locking device, while one of the extension rails is being pulled out from the closed position, the locking section is in a released position at least at the end of the remaining travel, in which the locking surface and the locking section move past each other as the extension rail is being pulled out further. Thus, in the released position of the extension locking device, a corresponding extension rail can be pulled out.

[0009] Therefore, in the locked state of the pull-out locking device, the cooperation of the latching member and the rope-type element or the corresponding sliding element is not used to actually prevent the pull-out of the pull-out guide rail or the drawer connected thereto, but this is achieved by making the locking surface that moves with the pull-out guide rail touch the locking section. Here, the position of the locking section is controlled by pulling the pull-out guide rail out on the remaining stroke, depending on whether the pull-out is carried out in the released state or in the locked state of the pull-out locking device, wherein the latching member performs different motions in the two states, or performs motions in one state and does not perform motions in the other state. Therefore, it is not necessary for the rope-type element or the sliding element complex to provide the force required to resist the violent opening of the drawer. Therefore, the rope-type element or the sliding element complex can be made relatively slender, but still provide a large resistance to prevent the drawer from being violently opened. Thus, the force required to open the drawer in the released state of the pull-out locking device can be kept very small.

[0010] Advantageously, the holding spring is designed to be so strong that, in the released state of the pull-out locking device, the holding spring is not deformed during the pulling out of the pull-out guide and thus during the transfer of the latching element from the armed position into the actuated position.

[0011] In one possible embodiment of the invention, the latching element is pivotably mounted on the base body about a pivot axis which is preferably parallel to the pull-out direction, and the transfer between the armed position and the actuated position is carried out by pivoting about the pivot axis. In this embodiment, it can advantageously be provided that the pivot axis can be moved relative to the base body in a direction perpendicular to the pivot axis against the force of the retaining spring. If one of the drawers is pulled out by the remaining travel in the locked state of the pull-out locking device, the latching element can thus be pivoted with the pivot axis offset, more precisely about the axis formed by the contact point of the latching element on the cable element or on the corresponding sliding element.

[0012] The locking surface cooperating with the locking section in the locking position of the locking section can advantageously be arranged on the corresponding associated operating member. Also can be arranged on the corresponding associated extension guide or be arranged on a component that is immovably connected with this extension guide about the extension direction.

[0013] Each operating member can be constructed in one piece with the corresponding pull-out guide, that is, it is formed by a section of the pull-out guide. However, in an advantageous embodiment, the operating member is formed by a separate component, which is driven by the pull-out guide only on an initial part of the pull-out path. Here, the operating member can be supported by the base body in a movable manner between a basic position and a waiting position, and cooperate with a driving device that moves with the corresponding pull-out guide over the entire pull-out stroke. Here, the corresponding operating member occupies a basic position in the pushed-in state of the configured pull-out guide, in which the configured driving device is coupled to the operating member. When the configured pull-out guide is pulled out, the operating member is transferred by the driving device to the waiting position, in which the driving device is decoupled from the operating member, and the operating member remains in the waiting position while the pull-out guide is further pulled out. Here, the operating member can be a tilting slide from the retraction device. For this purpose, there may be a retraction spring that acts on the actuating part and that automatically retracts the extension guide when pushed in after the entraining device has been coupled to the actuating part. Self-retraction devices that act in this way are sufficiently known.

[0014] The pull-out lock according to the invention can conventionally have a locking unit by means of which the pull-out lock can be transferred from a released state to a locked state in all closed positions of the pull-out guide. To this end, the cable element can be deflected by the locking unit or the mobility of the movably mounted end of the cable element or the mobility of the sliding elements of the sliding element complex can be blocked.

[0015] In a preferred embodiment of the present invention, the abutment surface of the corresponding latch part, which cooperates with the rope-type element or with the corresponding sliding element of the sliding element complex, moves in a direction when transferring from the ready position to the operating position, which direction is at least essentially perpendicular to the pulling direction (that is, within the range of 90°+ / -15°).

[0016] If a rope-like element is mentioned within the scope of this text, this refers to any longitudinally extending flexible element which can withstand tensile forces but not compressive forces acting in the longitudinal direction of the element. For example, it can be a rope, such as a steel rope or a plastic rope, a thread, a belt, such as a fabric belt or a plastic belt, or a chain.

[0017] The locking section can be a section of a latching member of a one-piece structure. However, it is also conceivable and feasible to construct it as an independent component, which is coupled with the latching member and is displaced by the latching member through the displacement of the latching member.

[0018] In the context of this document, a "locked position" of the locking section means a position of the locking section in which the locking section overlaps / overlaps the locking surface with respect to the extension direction, i.e., when the associated extension guide is extended to the end of the remaining stroke, it comes to bear against the locking surface. In the context of this document, a "released position" of the locking section means a position of the locking section in which the locking section does not overlap / overlap the locking surface with respect to the extension direction, i.e., when the associated extension guide is extended, at the end of the remaining stroke, the locking surface passes by the locking section.

[0019] When reference is made to "front" and "rear" within the context of this text, this is relative to the pull-out direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Further advantages and details of the present invention are described below with the aid of the accompanying drawings. In the accompanying drawings:

[0021] Figure 1 An oblique view shows an embodiment of a pull-out locking device according to the invention, which has, for example, three pull-out guides arranged one above the other, wherein all pull-out guides are in the closed position;

[0022] Figure 2 Shows Figure 1 Magnified details of

[0023] Figure 3 Shows something like Figure 1 A view in which one of the pull-out guides is in the pulled-out position;

[0024] Figure 4 Shows Figure 3 Magnified details of

[0025] Figure 5 Shows something like Figure 1 A view in which all extension guides are in the closed position, but are in the locked state of the extension locking device due to the locking by means of the locking unit;

[0026] Figure 6 Shows Figure 5 Magnified details of

[0027] Figure 7 shows an enlarged detail in the rear end region of a pull-out guide in the closed position;

[0028] Figure 8 An enlarged detail in the rear end region of a pull-out guide in a central position is shown;

[0029] Fig. 9 A front view of one of the pull-out guide mechanisms is shown, wherein the body rail is mounted on a section of the furniture body and the pull-out rail is mounted on the drawer;

[0030] Fig.10 One of the pull-out guide mechanisms is shown, the guide rail in a disassembled state, with a latch unit mounted on the main body guide rail and a section of the rope-type element;

[0031] Fig.11 An oblique view of one of the latching units on the side of the latching unit facing the car body rail is shown in the basic position of the operating element, with a section of the rope-like element;

[0032] Fig.12 The operating element is shown in the waiting position. Fig.11 Similar views;

[0033] Fig.13 An exploded view of the latch unit and the rope element section is shown;

[0034] Fig.14 An oblique view of the latch member on the side of the latch member facing the base body is shown;

[0035] Fig.15 A top view of a latch is shown, wherein the retaining spring is shown in a deformed state with a solid line and in an undeformed state (without external force) with a dashed line;

[0036] Fig.16 shows a top view of the latch unit in the basic position of the operating element;

[0037] Fig.17A front view showing the latching unit with the cable-like element in the basic position of the operating element;

[0038] Fig.18 Shown along Fig.17 A cross-sectional view of line BB;

[0039] Fig.19 Shown along Fig.17 A cross-sectional view of line CC;

[0040] Fig. 20 shows a similar Fig.19 sectional view of

[0041] Fig.21 A front view of the latch unit together with the rope-type element is shown in the state of the latch unit after the extension guide has been pulled out the remaining stroke;

[0042] Fig. 22 Shown along Fig. 20 A cross-sectional view of line DD;

[0043] Fig.23 An oblique view of a base part and an operating part is shown, the base part being cut in the longitudinal center and the housing parts being exploded from one another;

[0044] Fig.24 From different viewing directions, it shows similar Fig.23 's view;

[0045] Fig.25 Shown along Fig.16 A cross-sectional view of line AA;

[0046] Fig.26 shows an oblique view of a part of the latching unit in the rear end region in the basic position of the operating element;

[0047] Fig. 27 and Fig.28 Shows something like Fig.25 and Fig.26 , showing the extension locking device in the released state after the configured extension guide rail has been pulled out the remaining stroke;

[0048] Fig.29 and Fig.30 Shows something like Fig. 27 and Fig.28 A view showing the locking state of the extension locking device after the configured extension guide rail has been pulled out of the remaining stroke;

[0049] Figure 31 to Figure 35 Schematic diagrams showing some other embodiments of the present invention. DETAILED DESCRIPTION

[0050] The first embodiment of the present invention is Figures 1 to 30 The figure shows a pull-out locking device for a drawer according to the present invention, wherein the components of the pull-out locking device are integrated into a plurality of pull-out guide mechanisms 7 arranged one above the other.

[0051] In the embodiment shown, the pull-out guide mechanism comprises a main body rail 1, an intermediate rail 2 and a pull-out guide 3. Here, the pull-out guide mechanism is constructed in the manner of a differential pull-out guide mechanism (Differentialausziehführung), wherein the intermediate rail 2 travels half the travel of the pull-out guide 3 when pulling out and pushing in. As shown in the figure, all rollers can be arranged on the intermediate rail 2. The pull-out guide mechanism can be constructed in a conventional manner, and the arrangement of the rollers and their operating principle do not need to be explained in detail here.

[0052] The extension locking device according to the invention can also be integrated into other types of extension guide mechanisms, for example, into an extension guide mechanism having only one carcass rail and one extension guide rail.

[0053] The extension of the respective extension guide 3 from the completely inserted state takes place in the extension direction 4 , against which the extension guide 3 was inserted.

[0054] Only in Fig. 9 , a section of a furniture body 5 is shown, on which the body rail 1 of the pull-out guide mechanism 7 is to be mounted. Fig. 9 A portion of the drawer 6 is shown in FIG. Fig. 9 The pull-out guide rail 3 of the pull-out guide mechanism 7 shown in FIG. is installed on this drawer. The pull-out guide rail 3 of other pull-out guide mechanisms 7 is installed on the drawer 6 in a similar manner.

[0055] A latching unit 8 is mounted on each extension guide 7. For this purpose, the base body 9 of each latching unit 8 is fixed on the car body rail 1, more precisely, in the area of ​​the rear end of the car body rail 1.

[0056] A latching element 10 is movably mounted on the base body 9, and in this exemplary embodiment can be moved about a pivot axis 11 parallel to the extension direction 4. As will be explained below, the pivot axis 11 itself is movable, and can be displaced in a direction perpendicular to the extension direction 4. The pivot axis 11 can therefore also be referred to as a pivot-translation axis.

[0057] The extension locking device has a rope-like element 12, which is designed, for example, in the form of a steel wire rope. The latching parts 10 of all latching units 8 cooperate with this rope-like element 12. In this embodiment, the rope-like element 12 is arranged near the corresponding latching part 10 in terms of a direction perpendicular to the extension direction 4.

[0058] The cable element 12 is immovably connected to the furniture carcass 5 at a first end, in this embodiment by means of a connecting piece 13. Thus, in the installed state of the extension locking device, the carcass rail 1 and the first end of the cable element 12 are fixed relative to each other.

[0059] The second end of the rope-like element is suspended in a limitedly movable manner. After the movable distance is moved in the direction of the first end, the movability of the second end is exhausted and it is no longer possible to move further in the direction of the first end. For this purpose, the second end is mounted on an end piece 14 in this embodiment, which is mounted on a suspension piece 16 by means of a tensioning spring 15. The tensioning spring 15 keeps the rope-like element 12 tensioned. After the end piece 14 is moved in the direction of the first end of the rope-like element by the movable distance, the end piece 14 stops on a stop piece 17 which is fixedly mounted relative to the furniture body 1. The rope-like element 12 is guided through the gap in the stop piece 17.

[0060] Furthermore, a locking element 18 of a locking unit 19 cooperates with the cable-like element 12. The suspension element 16 and the stop element 17 can be components of a base element 20 of the locking unit. The locking element 18 is rotatably mounted in the base element 20.

[0061] In the closed position of all extension guides 3, the latching elements 10 of all latching units 8 are in the ready position. In the ready position of all latching elements 10 and in the open state of the locking unit 19, the self-retraction device has a released state. In the released state, the rope-like element 12 is not deflected by the latching elements 10, that is, it passes through the latching unit 8 in a straight line and / or passes by it. In the released state of the pull-out locking device, the rope-like element 12 is also not deflected by the locking element 18. In this embodiment, the rope-like element extends in a straight line between the connecting element 13 and the end piece 14. This state is Figure 1 and Figure 2 Shown in.

[0062] exist Figure 3 and Figure 4 , the state after one of the extension rails 3 has been pulled out into the extension position is shown. The latching element 10 of the latching unit 8 mounted on the main rail 1 of the extension guide 7 is now in the operating position, in which the latching element deflects the rope-like element 12 in the region of the latching element 10, such as in Fig. 27As can be seen in FIG. The transfer of the latch 10 from the armed position to the operated position is achieved by pivoting about the pivot axis 11, whereby the cable element 12 is deflected by the latch 10, which rests on the cable element 12 with the abutment surface 10d. Above and below the latch 10 of the respective latch unit 8, the base body 9 on which the latch 10 is supported has cable guide sections 9a, 9b, against which the cable element 12 is pressed by the latch 10 in the operated position of the latch 10, whereby a vertical run of the cable element 12 above and below the cable guide sections 9a, 9b is also achieved in the operated position of the latch 10. In this embodiment, the cable guide sections 9a, 9b have slots through which the cable element 12 extends.

[0063] By deflecting the cable element 12 in the region of the latch 10, the second end of the cable element 12 has been moved in the direction of the first end. The end piece 14 is thus in contact with the stop 17, as for example caused by the Figure 4 Therefore, the extension locking device is in a locked state, in which the extension guide rail 3 of the other extension guide mechanism 7 is locked from being extended.

[0064] The locked state of the extension lock can also be achieved in the closed position of all extension guides by operating the locking element 18 of the locking unit 19. By rotating the locking element 18, the eccentric section 18a of the locking element 18 abuts against the cable element 12 and deflects it, see in particular Figure 6 The end piece 14 is thereby pulled to abut against the stop piece 17 and thereby prevents the rope-like element 12 from further deflecting. The locking unit 19 has a rope guide section 19a for the rope-like element 12 below the locking piece 18, and the rope guide section 19a has a slit through which the rope-like element 12 extends, so that in the state of being deflected by the locking piece 18, the rope-like element 12 also extends vertically below the rope guide section 19a.

[0065] In order to pass the cable-like elements 12 through, the horizontal limbs of the carcass rails 1 of the respective extension guide 7 have, in this exemplary embodiment, slots extending from the rear end of the carcass rails 1 .

[0066] The latching units 8 each have an actuating element 21 which interacts with the latching element 10 of the latching unit 8 in order to transfer it from a ready position into an actuated position while the associated extension guide 3 is being extended.

[0067] In this embodiment, the pivot axis 11 of the latch 10 is formed by a journal head 10a of the latch 10, which engages in an axle recess 9c of the base body 9. The axle recess 9c is designed in the form of an elongated hole. The latch 10 has a spring-elastic arm that forms a retaining spring 10b. On the spring-elastic arm 10b, a spring spring 10a can be provided. Fig.13 ) is provided with a raised protrusion 10c, and the arm 10b is in contact with the contact section 9g of the base 9 with the protrusion 10c. In the absence of external force, the retaining spring 10b formed by the arm keeps the journal head 10a in contact with the end of the shaft recess 9c facing the operating member 21. The journal head 10a can overcome the force of the retaining spring 10b and move in a direction away from the operating member 21.

[0068] The operating member 21 of each latching unit is supported movably by the base body 9 of the latching unit 8 between a basic position and a waiting position. In the closed position of the associated extension guide 3, the operating member 21 is in the basic position, see Figure 7 , Fig.11 , Fig.16 , Fig.17 , Fig.18 , Fig.19 , Fig.25 and Fig.26 While the extension guide 3 is being pulled out, the operating member 21 is first driven by the driving device 22 of the extension guide 3 from the closed position of the extension guide 3 until the operating member 21 reaches the waiting position. The extension guide 3 then occupies an intermediate position between the closed position and the extension position. In the waiting position, the driving device 22 previously coupled to the operating member 21 can be decoupled from the operating member 21. While the extension guide 3 is being pulled out further, the operating member 21 remains in the waiting position. Figure 8 , Fig.12 and Fig. 20 In the embodiment, the operating member 21 is in the waiting position.

[0069] When transferring from the basic position to the waiting position, the operating part 21 moves in the extension direction 4 and, at least in the end region of the movement, before reaching the waiting position, the operating part tilts about an axis perpendicular to the extension direction 4. Therefore, the operating part 21 can also be called a tilting slide.

[0070] A tilting slide that moves in a similar manner between a basic position and a waiting position is also known from self-retraction devices. For this purpose, the tilting slide is loaded in the direction of the basic position by a retraction spring, and in the waiting position the retaining surface of the tilting slide bears against the stop surface of the base body in order to prevent the tilting slide from being pulled back in the direction of the basic position. When the extension guide begins to be pushed in from the extension position, in the intermediate position of the extension guide, the entraining device stops on the tilting slide, whereby the tilting slide is pivoted and the retaining surface is disengaged from the stop surface, so that the retraction spring can pull the tilting slide back into the basic position.

[0071] Similarly, in the extension locking device according to the invention, a corresponding retraction spring can cooperate with the actuating element 21 of the corresponding latching unit 8, which retraction spring urges the actuating element 21 in the direction of the basic position. The extension locking device according to the invention can thus be combined with a self-retraction device. Here, the retraction of the extension guide can also be damped by a damper.

[0072] In this embodiment, the driving device 22 that cooperates with the operating member 21 and is constructed in the rear end area of ​​the corresponding pull-out guide 3 has a gap 3d, which is arranged in the tab 3a of the pull-out guide 3, and the tab connects the vertical tab 3b of the pull-out guide 3 to the horizontal tab 3c of the pull-out guide. The horizontal tab 3c forms a raceway for the roller of the middle rail. The tab 3a that connects the vertical tab 3b to the horizontal tab 3c is configured obliquely in the area in front of the gap 3d. In the area behind the gap 3d, the tab 3a has a raised tab section. Therefore, the front edge of the gap 3d is located at a lower position (closer to the pivot axis of the operating member 21) than the rear edge.

[0073] In the basic position of the operating member 21, the projection 21a of the operating member 21 extends into the slit 3d. During the period when the pull-out guide is pulled out from the closed position, the driving device 22 therefore first drives the operating member 21 along the pull-out direction 4. When driving the operating member 21, the operating member 21 pivots to such an extent when it is about to reach the waiting position that the projection 21a of the operating member 21 can be moved out of the slit 3d. This movement is realized in an intermediate position of the pull-out guide. When the pull-out guide 3 is pushed in from the pull-out position, the coupling of the driving device 22 and the operating member 21 is realized in this intermediate position of the pull-out guide 3. For this purpose, the starting surface 21b of the operating member 21 slides on the front edge of the slit 3d, thereby realizing the pivoting of the operating member 21 and causing the projection 21a to enter the slit 3d.

[0074] In order to guide the operating part 21 movably and pivotably relative to the base body 9, the operating part 21 has two protruding bearing pin heads 23, 24 on both sides in this embodiment. The bearing pin heads extend into the sliding guide rails 25-28, which are arranged in the opposite side walls 9d, 9e of the base body 9, see Fig.23 and Fig.24 . The directions of the slide rails 25 and 26 in the two side walls 9d and 9e correspond to each other, and the protruding supporting pin heads 23 on both sides are embedded in these two slide rails. Similarly, the directions of the slide rails 27 and 28 arranged in the two side walls 9d and 9e correspond to each other, and the supporting pin heads 24 protruding on the opposite sides of the operating member 21 are embedded in the slide rails 27 and 28. The slide rails 27 and 28 extend in a straight line parallel to the pull-out direction 4. The slide rail 28 passes through the side wall 9e of the base 9 adjacent to the latch 10. The supporting pin head 24 extending into the slide rail 28 cooperates with the operating surfaces 10e and 10f of the latch 10 (see Fig.14 ). The operating surface has a bevel 10e and a plane section 10f connected thereto, which extends parallel to the pull-out direction 4. The bevel 10e and the plane section 10f are located on the end edge of the protruding strip in this embodiment.

[0075] When one of the pull-out guides 3 is pulled out in the closed position, the latching member 10 of the associated latching unit 8 is first in the ready position. The operating member 21 in the basic position is driven by the driving device 22 and moves in the direction of the waiting position. Here, the supporting pin head 24 passing through the slide track 28 abuts against the inclined surface 10e. This allows the latching member 10 to pivot from the ready position to the operating position. Here, the spring 10b is held without deformation. At the end of the first section of the pull-out stroke (referred to as the "remaining stroke" in this specification), the latching member 10 is in the operating position, the supporting pin head 24 has passed the inclined surface 10e, and is located in the starting area of ​​the plane section 10f.

[0076] By transferring the latching element 10 from the ready position to the operating position, the cable element 12 is deflected by the latching element 10 in the region of the latching unit 8, more precisely by the contact surface 10d of the latching element 10 moving toward the cable element 12. The cable guide sections 9a, 9b of the base body 9 are located above and below the contact surface 10d. In the deflected state of the cable element 12, as shown in FIG. Fig. 27 As can be best seen, the cable element extends in a curved manner through the cable guide sections 9 a , 9 b and has an opposite curvature at the contact surface 10 d .

[0077] The "deflection" of the cable element thus means that the cable element is displaced in the region of the respective latching element relative to its zero position in the released state of the pull-out lock. Due to the cable guide sections above and below the respective latching element, the course of the cable element above the upper cable guide section and below the lower cable guide section is not changed thereby.

[0078] Due to the deflection of the cable element 12 , the end piece 14 comes into contact with the stop piece 17 and thus prevents a further deflection of the cable element.

[0079] While the extension guide 3 is being pulled out further, the latching element 10 remains in the actuated position (due to the contact of the bearing pin head 24 on the flat section 10f). The actuating element 21 is moved to a waiting position, in which the driver 22 is decoupled from the actuating element 21 and remains in the waiting position while the extension guide 3 is being pulled out further.

[0080] By transferring the latching element 10 from the ready position into the actuating position, the locking section 10g of the latching element 10 is also transferred from the locked position into the released position. Thus, in the closed position of the extension guide 3, the locking section 10g is in a locked position in which it overlaps / overlaps with the locking surface 21c provided on the actuating element 21 with respect to the extension direction 4. In the locked position of the locking section 10g, it is therefore located in the region swept by the locking surface 21c when the actuating element 21 moves from the basic position into the waiting position, more precisely, the locking surface 21c touches the locking section 10g exactly at the end of the remaining travel of the extension guide. However, since the latching unit 8 has been transferred to the operating position over the remaining stroke at the end of the extension of the extension guide 3, the locking section 10g is also transferred to the release position, in which the locking surface 21c can move past the locking section 10g when the extension guide 3 is extended beyond the remaining stroke.

[0081] By pulling one of the extension guides 3 from the closed position to the open position, the extension locking device is transferred from the released state to the locked state. This locked state already exists after the extension guide is pulled out of the remaining stroke.

[0082] If the extension lock is in the locked state and an attempt is made to extend one of the extension rails 3 which is in the closed position, the latching element 10 of the associated latching unit 8 is blocked from pivoting from the ready position to the actuated position due to the abutment of the contact surface 10d on the cable element 12, which cannot be displaced due to the abutment of the end piece 14 on the stop piece 17. When the bearing pin head 24 moves along the inclined surface 10e, the holding spring 10b is deformed (i.e., the arm forming the holding spring 10b in this embodiment is bent) and the journal head 10a is moved in the shaft recess 9c, more precisely in the direction away from the actuating element 21. The latching element 10 is thus pivoted about the abutment point of the contact surface 10d on the cable element 12 as an axis which is parallel to the extension direction 4. During this pivoting, the locking section 10g of the latch 10 remains in a position in which it overlaps / overlaps the locking surface 21c with respect to the extension direction 4, or the overlap / overlap even increases slightly. Therefore, after the extension guide 3 has been pulled out the remaining distance, the locking section 10g is in the locked position and at the end of the remaining distance it rests on the locking surface 21c, thereby preventing the extension guide 3 from being pulled out further. This situation is Fig.29 and Fig.30 Shown in.

[0083] The base body 9 has a support surface 9f, which supports the locking section 10g of the latch 10 on the side opposite to the locking surface 21c when the operating member 21 touches the locking section 10g of the latch 10. Therefore, the locking stability of the locking section 10g is improved.

[0084] When the pull-out locking device is placed in the locked state by locking the locking unit 19, the pulling out of any of the pull-out guides in the closed position is prevented at the end of the remaining stroke in exactly the same way as described above for the situation in which an attempt is made to pull out another pull-out guide after one of the pull-out guides has been pulled out (when the lock is open).

[0085] The remaining stroke is preferably within the range of 1 mm to 10 mm. Therefore, when the end of the remaining stroke has locked the pull-out of the pull-out guide rail, embedding in the drawer cannot be achieved.

[0086] In the embodiment shown, the pull-out locking device is placed in the locked state by means of the locking unit 19 through the deflection of the rope-like element 12. Alternatively, a blocking element can also be inserted between the end piece 14 and the stop 17 to block the deflection of the rope-like element 12 by the latch 10 of any latch unit 8.

[0087] In this embodiment, the locking surface 21c is arranged on the operating member 21. Through the remaining stroke and another extension section connected thereto, the operating member 21 is driven by the extension guide 3 during the extension (until the waiting position of the operating member 21 is reached). Alternatively, the locking surface can also be directly arranged on the extension guide 3 or on a component rigidly connected to the extension guide 3.

[0088] In this embodiment, the locking section 10g is formed integrally with the latching member 10. Alternatively, the locking section 10g can also be provided on a separate component which is coupled to the latching member 10 so that when the latching member 10 is displaced, the component together with the locking section is displaced.

[0089] Instead of the operating element 21, which is formed as a one-piece tilting slide as shown in the figure, the operating element 21 can also be designed in two parts, including a slide which is supported by the base body 9 so as to be displaceable parallel to the extension direction 4 and a tilting element which is supported on the slide so as to be pivotable about an axis perpendicular to the extension direction. Such two-piece tilting slides are also known in combination with retraction devices and also in combination with extension locks (for example according to the prior art mentioned at the beginning).

[0090] The slide or also the tilting element can form an operating element that cooperates with the latching element 10 in order to transfer the latching element between the armed position and the operating position.

[0091] Some other possible embodiments of the present invention are Figure 31 to Figure 35 . The differences from the first exemplary embodiment of the invention described above will be explained below. Apart from the differences explained, the constructional design thereof corresponds to those of the first exemplary embodiment, and the description of the first exemplary embodiment together with the described variant design can be introduced in a similar manner in this respect.

[0092] The second embodiment of the present invention is Fig.31 In the schematic diagram, a cross section (similar to Fig.25 Here, the operating member 21 is schematically shown as a Fig.31 2 shows a slide which is supported movably between a basic position and a waiting position parallel to the extension direction 4, which is not shown for the sake of simplicity. In order to couple and decouple the driving device, a tilting element is pivotably supported on the slide, which is not shown in the figure. However, the operating element 21 can also be designed in the form of a tilting slide similar to the tilting slide described in the first embodiment.

[0093] There is an inclined surface for transferring the latch member 10 between the cocking position and the operating position, which is arranged on the projection 29 of the operating member 21. Fig.31, the ready position of the latch member in the released state of the pull-out locking device is shown, and the extension of the inclined surface is schematically shown by the dotted line. However, the inclined surface can also be arranged on the latch member 10 similarly to the first embodiment. Conversely, in the first embodiment, the inclined surface can also be arranged on the operating member 21.

[0094] Another difference from the first embodiment is that in this case there are no cable elements 12, but rod-type sliding elements 30, which together form a sliding element complex, with which the latching elements of the latching units assigned to the respective pull-out guides cooperate, as is known from pull-out locking devices according to the prior art. When one of the pull-out guides is pulled out, the latching element 10 of the assigned latching unit is transferred from the ready position to the operating position by the operating element 21, in this case by pivoting about the pivot axis 11. The pivot axis 11 is formed, for example, by at least one axle pin, which engages in a corresponding axle recess 9c of the base body. If the latching element 10 is pivoted into the operating position, the upper sliding element is lifted by the inclined contact surface 10d of the latching element 10 and thereby any sliding elements located further above are lifted. Thus, in some of the latching units located above the illustrated latching unit, the tips of the latching elements abut against the side wall of the corresponding lower sliding element and the latching elements are blocked for transfer from the armed position to the actuated position. Fig.31 For the push rod shown below and the push rod that may be located below it, when the latch member shown is in the operating position, lifting is locked. Thus, the latch member 10 of each latch unit that may be arranged below it is locked from the ready position to the operating position.

[0095] Instead of the sliding element complex, a cable element can also be present in this embodiment, similar to the first embodiment. Conversely, in the first embodiment, instead of the cable element, a sliding element complex can be present and the latching parts can be designed to be matched accordingly.

[0096] It is also possible to form a sliding element complex from elements other than rod-type sliding elements.

[0097] exist Fig.31 In the illustrated embodiment, when the latch 10 is in the cocking position, the locking section 10g provided on the latch 10 is in the release position. If the latch is transferred from the cocking position to the operating position, the release position is maintained.

[0098] However, if the extension rail 3 in the closed position is pulled out in the locked state of the extension locking device and the operating member 21 moves with the extension rail at least initially, the transfer of the latching member 10 from the ready position to the operating position is blocked by the locking element complex. Over the remaining stroke of the extension stroke, the latching member is pivoted about the contact point on the corresponding sliding element 30, wherein the pivot axis 11 moves in at least one shaft recess 9c configured as an elongated hole when the retaining spring 31 is deformed. The retaining spring 31 is shown here as a helical spring, which acts between the shaft pin and the base body. Due to the displacement of the pivot axis 11, the locking section 10g overlaps / overlaps with the locking surface 21c (with respect to the extension direction 4) provided on the operating member 21. As a result, the locking section 10g is in the locked position. At the end of the remaining stroke, the locking surface 21c abuts against the locking section 10g, thereby preventing the extension rail from being pulled out further.

[0099] The third embodiment of the present invention is Fig.32 The latching element 10 here cooperates with a cable-like element 12. Cooperation with a sliding element of a sliding element complex is likewise conceivable and possible.

[0100] The operating member 21 is operatively connected to the latch member 10 via a transmission member 32. An inclined surface is provided on the transmission member 32, which enables the latch member to be transferred between the ready position and the operating position, and the inclined surface cooperates with the latch member 10. It is also conceivable and feasible that the inclined surface is provided on the latch member 10 and cooperates with the transmission member 32. The transmission member 32 is movably supported in a recess of the operating member 21 and is pressed against the latch member 10 by a retaining spring 31.

[0101] In the ready position of the latch 10, the locking section 10g of the latch 10 is in the locked position. If the associated extension guide 3 is pulled out from the closed position in the released state of the extension locking device and the operating member 21 is first driven here, then over the remaining stroke, before the locking surface 21c of the operating member 21 hits the locking section 10g of the latch 10, the latch 10 is transferred from the ready position to the operating position by the inclined surface of the transmission member 32 under the deflection of the rope-like element 12, and in this embodiment, the latch is pivoted around the pivot axis 11 for this purpose. Here, the retaining spring 31 (the size) is designed again so that it does not bend. At the end of the remaining stroke, the locking section 10g no longer overlaps / overlaps the locking surface 21c, and the operating member 21 can move past the latch 10. If the extension rail 3 configured in the latch unit shown is pulled out in the locked state of the extension locking device, the rope-type element 12 prevents the latching member 10 from being transferred from the ready position to the operating position. During the remaining extension stroke, the transmission member 32 overcomes the force of the retaining spring 31 and is pressed into the recess of the operating member 21 when the retaining spring 31 is deformed. Therefore, the locking section 10g is maintained in the locked position, and at the end of the remaining stroke, the locking surface 21c of the operating member 21 hits the locking section 10g, and further pulling out of the configured extension rail 3 is prevented. In this embodiment, a sliding element complex can also be provided instead of the rope-type element 12.

[0102] A fourth embodiment of the present invention is Fig.33 . This embodiment is designed in a similar manner to the third embodiment. Here, the transmission member 32 can also be pressed into a recess of the operating member 21 against the force of a retaining spring 31. Similarly, in the ready position of the latch 10, the locking section 10g of the latch 10 is located in its locking position. However, the latch 10 cannot be pivoted about the pivot axis when transferring between the ready position and the operating position, but is supported by the base member in a linearly movable manner perpendicular to the pull-out direction 4. For example, grooves 33, 34 can be provided in the base member 4 for this purpose, and the guide protrusions 35, 36 of the latch 10 are embedded in the grooves.

[0103] Here too, a sliding element complex can be provided instead of the cable element 12 .

[0104] In the third and fourth embodiments, the transmission member 32 can also be movably supported in a recess of the latch member against the force of the holding spring. So the transmission member 32 can have an inclined surface that cooperates with the operating member 21, or an inclined surface that cooperates with the transmission member can be set on the transmission member.

[0105] A fifth embodiment of the present invention is Fig.34Here, the transmission member 32 is supported in a recess of the latch member 10 so as to be displaceable against the force of the holding spring 31 and has an inclined surface cooperating with the operating member 21 .

[0106] In contrast to the previously shown embodiments, the locking section 37 is here arranged on a separate component, which is designed as a rocker arm 38. The rocker arm 38 is supported on the transmission element 32 in a pivotable manner about an axis 39. In this embodiment, the locking section 37 occupies a release position when the associated extension guide is in the pushed-in state. While the associated extension guide is being pulled out in the released state of the extension locking device, the locking section remains in this release position, wherein the latching element 10 is displaced relative to the cable element 12 (instead of the cable element, a sliding element complex can be provided) over the remaining travel of the extension stroke, the cable element 12 being deflected and the retaining spring 31 not buckling. If, on the other hand, the extension guide is pulled out the remaining distance in the locked state of the extension locking device, the transmission element 32 is pressed into the recess in the latching element 10 while the retaining spring 31 is deformed, and the control arm 40 of the latching element 10 strikes the rocker arm 38 and pivots it about the axis 39 into the locked position, in which the locking section 37 overlaps / overlaps the locking surface 21 c on the actuating element 21 with respect to the extension direction 4. At the end of the remaining distance, further extension of the extension guide is then blocked.

[0107] In the above-mentioned embodiment, the latching member 10 is respectively operated by an operating member 21, which is driven by the corresponding extension rail at least in the first section of the extension (the first section at least includes the remaining stroke) during the extension from the extension rail closed position, and then decoupled from the extension rail. Alternatively, the operating member can also be rigidly connected to the extension rail, or formed by a section of the extension rail itself.

[0108] The sixth embodiment of the present invention is Fig.35 . This embodiment is shown in a schematic longitudinal section parallel to the pull-out direction 4. The corresponding latching element 10 cooperates with a sliding element complex, which is arranged in front of the latching element 10 with respect to the pull-out direction. Instead of the sliding element complex, a rope-like element can also be provided. The latching element is supported in a recess of a slide 41 so that it can be displaced against the force of the holding spring 31. The slide 41 is formed by the corresponding latching unit in a recessed portion. Fig.35The base body, not shown, is supported movably parallel to the pull-out direction 4, more precisely, it can be moved from a basic position, which the slide 41 occupies in the closed position of the configured pull-out guide, to a waiting position, which the slide 41 occupies in the pull-out position of the configured pull-out guide 3. Here, the slide 41 is driven by an operating member 45, which is formed by a part of the pull-out guide 3 or by a component rigidly connected thereto. The operating member 45 cooperates with the tilting member 42. In the basic position of the slide 41, the tilting member 42 is coupled to the operating member 45, for example in such a way that the operating member 45 is located in a recess of the tilting member 42. When the configured pull-out guide is pulled out and the slide 41 is moved, the tilting member 42 pivots until the waiting position of the slide 41 is reached (the pivoting direction is in the Fig.35 The operating member 45 is decoupled from the tilting member 42 in an intermediate position of the pull-out guide rail (indicated by an arrow). While the pull-out guide rail 3 is being pulled out further, the slide 41 remains in the waiting position. The retaining surface of the tilting member 42 can here rest against the abutment surface of the base body, thereby preventing the slide from returning to the basic position. When the slide moves from the basic position to the waiting position, the latching member 10 is driven along, wherein the retaining spring 31 is not deformed. As a result, the latching member 10 reaches the operating position from the ready position, in which the latching member cooperates with the sliding element complex or with a rope-type element provided instead, and thereby transfers the pull-out locking device from the released state to the locked state.

[0109] When the latch 10 is transferred from the cocking position to the actuating position, the latch 10 displaces the locking section 37, which in this embodiment is again formed by a separate component and is supported by the base body so as to be displaceable in a direction perpendicular to the extension direction 4, namely against the force of the pressure spring 43. In the cocking position of the latch 10, the locking section 37 assumes a locking position in which the locking surface 37a of the locking section 37 overlaps / overlaps the locking surface 41a provided on the slide 41 with respect to the extension direction 4. When the latch 10 is transferred from the cocking position to the actuating position, the control projection 44 of the latch 10 cooperates with the inclined surface 37b of the locking section 37, thereby transferring the locking section from the locking position to the release position, and the locking surface 41a of the slide then strikes the locking surface 37a of the locking section 37. Specifically, the slide comes into engagement with the inclined surface 37b of the locking section and can further move the locking section against the force of the compression spring.

[0110] When the extension guide moves in from the extended position, the operating element 45 couples with the tilting element 42 in the middle position of the extension guide and pivots the tilting element, whereby the retaining surface of the tilting element 42 is disengaged from the contact surface of the base body. The slide 41 can thus be moved back to the basic position and the latch 10 is transferred back to the ready position.

[0111] If the extension guide in the closed position is pulled out in the locked state of the extension locking device, the sliding element complex (or cable element) prevents the latching element 10 from being transferred from the ready position to the actuating position. When the slide 41 moves from the basic position into the waiting position, the latching element 10 moves into the recess until the locking surface 41a of the slide 41 abuts against the locking surface 37a of the locking section 37 at the end of the remaining stroke and prevents the extension guide from being pulled out further.

[0112] Can imagine and possibly, there is a pull-in spring and corresponding slide 41 cooperation and this pull-in spring is loaded to the direction of basic position, can constitute a kind of self-pull-in device that is used for corresponding drawer thus.At this, the pull-in action also can be buffered by a damper.

[0113] Reference numerals list

[0114] 1 Main rail 12 Rope element

[0115] 2 Middle rail 13 Connector

[0116] 3 Pull out the end piece of guide rail 14

[0117] 3a Tab 15 Tension spring

[0118] 3b Vertical straight piece 16 Suspension piece

[0119] 3c Horizontal tab 17 Stopper

[0120] 3d gap 18 lock

[0121] 4 Pull-out direction 18a Eccentric section

[0122] 5 Furniture body 19 Locking unit

[0123] 6 Drawer 19a Rope guide section

[0124] 7 Pull out the guide mechanism 20 Basic part

[0125] 8 Latch unit 21 Operating element

[0126] 9 Base 21a Protrusion

[0127] 9a Rope guide section 21b Starting surface

[0128] 9b Cable guide section 21c Locking surface

[0129] 9c Shaft recess 22 Carrying device

[0130] 9d Side wall 23 Support pin head

[0131] 9e Side wall 24 Support pin head

[0132] 9f Support surface 25 Slide track

[0133] 9g Abutment section 26 Slideway track

[0134] 10 Latch 27 Slide track

[0135] 10a Journal head 28 Slideway track

[0136] 10b Holding spring 29 Protrusion

[0137] 10c protrusion 30 sliding element

[0138] 10d Abutment surface 31 Retention spring

[0139] 10e Inclined surface 32 Transmission element

[0140] 10f Plane section 33 slots

[0141] 10g Locking section 34 slot

[0142] 11 Pivot axis 35 Guide nose

[0143] 36 Guide nose

[0144] 37 Locking section

[0145] 37a Locking surface

[0146] 37b Slope

[0147] 38 Rocker arm

[0148] 39 Axis

[0149] 40 Control arm

[0150] 41 Slide

[0151] 41a Locking surface

[0152] 42 Tilt member

[0153] 43 Compression spring

[0154] 44 Control bulge

[0155] 45 Operating parts

Claims

1. A pull-out locking device for a drawer (6), comprising: At least two pull-out guide mechanisms (7), each of which has a body guide rail (1) that can be mounted on a common furniture body (5) and a pull-out guide rail (3) that can be mounted on a respective drawer (6), wherein the pull-out guide rail can be pulled out from a closed position to a pull-out position via a pull-out stroke in a pull-out direction (4), A latch unit (8) is arranged on each corresponding pull-out guide mechanism (7), each of which comprises a base (9) mounted on the main body guide rail (1) and a latch member (10) supported by the base (9), wherein the support method is such that the latch member can move between a waiting position and an operating position. The latch (10) cooperates with a rope-like element (12) of the pull-out locking device or cooperates with a corresponding sliding element (30) in a sliding element complex of the pull-out locking device, wherein, in the released state of the pull-out locking device, when one of the pull-out guide rails (3) is pulled out, the configured latching member (10) is transferred from the ready position to the operating position by an operating member (21, 45) that moves together with the pull-out guide rail (3) at least over an initial portion of the pull-out stroke, whereby the rope-type element (12) is deflected by the latching member (10) in the region of the latching member (10), or the sliding member (30) that cooperates with the latching member (10) is pushed by the latching member (10); and, in the locked state of the pull-out locking device, when the pull-out guide rail (3) is in the closed position, the transfer of the latching member (10) from the ready position to the operating position is prevented by the rope-type element (12) or by the sliding member (30) that cooperates with the corresponding latching member (10), It is characterized in that In the locked state of the pull-out locking device, the corresponding pull-out guide rail (3) in the closed position can be pulled out over a remaining stroke that is less than 1 / 5 of the pull-out stroke, wherein a holding spring (10b, 31) is deformed by preventing the associated latching member (10) from being transferred from the ready position to the operating position, and the holding spring is arranged in a force transmission path between the latching member (10) and the base (9) supporting the latching member (10), In the locked state of the extension locking device, at least after one of the extension rails (3) in the closed position is pulled out the remaining distance, a locking section (10g, 37) arranged on the associated latching element (10) or operated by the latching element (10) is in a locked position, in which the locking section prevents the extension rail (3) from being pulled out further by abutting against a locking surface (21c, 41a) moving with the extension rail (3). Furthermore, in the released state of the pull-out locking device, when one of the pull-out guide rails (3) is pulled out from the closed position, the locking section (10g, 37) is located in a released position at least at the end of the remaining stroke, in which the locking surface (21c, 41a) and the locking section (10g, 37) move past each other when the pull-out guide rail is further pulled out.

2. The pull-out locking device according to claim 1, characterized in that: In the closed position of the corresponding pull-out guide rail (3), the corresponding assigned locking section (10g, 37) is in the locked position, and in the released state of the pull-out locking device, when the pull-out guide rail (3) is pulled out over the remaining stroke, the corresponding assigned locking section reaches the released position through the transfer of the latch (10) from the waiting position to the operating position; and in the locked state of the pull-out locking device, after the pull-out guide rail (3) is pulled out over the remaining stroke, the corresponding assigned locking section is still in the locked position because the transfer of the latch (10) to the operating position is prevented.

3. The pull-out locking device according to claim 1, characterized in that: In the closed position of the corresponding extension guide (3), the corresponding assigned locking section (10g, 37) is in the released position, and in the released state of the extension locking device, after the extension guide (3) is pulled out of the remaining stroke, the corresponding assigned locking section is still in the released position, wherein the latching member (10) is transferred from the waiting position to the operating position during the remaining stroke; and in the locked state of the extension locking device, when the extension guide (3) is pulled out over the remaining stroke, the transfer of the latching member (10) to the operating position is prevented during this period, and the corresponding assigned locking section is transferred to the locked position by a control action of the latching member (10) caused by the deformation of the retaining spring (10b, 31) or a control action of a transmission member (32), wherein the transmission member is arranged between the latching member (10) and the operating member (21) and is loaded by the retaining spring (31).

4. The pull-out locking device according to claim 1, characterized in that: The corresponding latching element (10) is transferred from a ready position to an operating position by means of at least one inclined surface (10e).

5. The pull-out locking device according to any one of claims 1 to 4, characterized in that: The locking surface (21c, 41a) is arranged on the corresponding pull-out guide rail (3) or on a component connected to the pull-out guide rail, and the connection method is: the component is immovable relative to the pull-out direction (4) at least in an initial section of the pull-out stroke including the remaining stroke.

6. The pull-out locking device according to claim 5, characterized in that: The locking surfaces (21c, 41a) are arranged on corresponding operating parts (21).

7. The pull-out locking device according to any one of claims 1 to 4, characterized in that The latch element (10) is pivotably supported on the base body (9) about a pivot axis (11), and the transition between the cocking position and the operating position is achieved by pivoting about the pivot axis (11).

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

9. The pull-out locking device according to any one of claims 1 to 4, characterized in that: The operating member (21) is supported by the base body (9) in a manner movable between a basic position and a waiting position, and cooperates with a driving device (22) respectively, which moves together with the corresponding extension guide (3) over the entire extension stroke, wherein the corresponding operating member (21) occupies the basic position in the closed position of the configured extension guide (3), in which the configured driving device (22) is coupled to the operating member (21), and when the configured extension guide (3) is pulled out by the driving device (22), the operating member is transferred to the waiting position, in which the driving device (22) is decoupled from the operating member (21), and when the extension guide (3) is further pulled out, the operating member (21) remains in the waiting position.

10. The pull-out locking device according to any one of claims 1 to 4, characterized in that A support surface (9f) is provided on the corresponding base body (9) or on the corresponding main body guide rail (1), and the support surface is used to support the corresponding locking section (10g) located in the locking position, and at this time, a force is applied to the locking section (10g) by the configured locking surface (21c).

11. The pull-out locking device according to any one of claims 1 to 4, characterized in that The remaining stroke is 1 mm to 10 mm.

12. The pull-out locking device according to any one of claims 1 to 4, characterized in that The respective base body (9) has cable guide sections (9a, 9b) for the cable element (12), which are arranged above and below the region of the cable element (12) which is deflected by the associated latching element (10).

13. The pull-out locking device according to any one of claims 1 to 4, characterized in that In the closed position of all extension guides (3), the extension locking device can be transferred from a released state to a locked state by means of a locking unit (19) by deflecting the rope element (12) or by blocking the mobility of the movably supported end of the rope element (12) or by blocking the mobility of the sliding element (30) in the sliding element complex.

14. The pull-out locking device according to any one of claims 1 to 4, characterized in that During the transfer of the corresponding latching element (10) from the ready position to the operating position, a contact surface (10d) of the latching element (10) moves in a direction at least substantially perpendicular to the pulling direction (4), and the contact surface contacts the rope-like element (12) or the corresponding push rod.

Images