Pull-out guide for a movable furniture part

Abstract

A pull-out guide (1) includes a carcass rail (4), a drawer rail (5,12) movable along a longitudinal axis (L) in an opening (714) and closing direction (OR, SR) of a movable furniture part (2), a drive apparatus for moving the drawer rail (5, 12) and the movable furniture part (2) between a closed position (SS) and an open position (OS), and a depth adjustment device (7) for adjusting the closed position (SS) of the drawer rail (5,12) relative to the carcass rail (4). The depth adjustment device (7) has a carrier (62, 71), a stop element (72) movable relative to the carrier (62, 71), and a depth adjustment wheel (73) mounted rotatably about a rotation axis on the carrier (62, 71) for moving the stop element (72) along the longitudinal axis (L). The rotation axis of the depth adjustment wheel (73) is parallel to the longitudinal axis (L), and the stop element (72) contacts a stop-counterpart piece of the drive apparatus in the closed position (SS) and is releasable by the stop-counterpart piece. (Fig. 19)

Description

[0001] Pull-out guide for a movable furniture part

[0002] The present invention relates to a drawer guide for a furniture part movable relative to a furniture carcass, in particular for a drawer, comprising a carcass rail to be connected to the furniture carcass, a drawer rail movably mounted on the carcass rail which is connectable to the movable furniture part and has a longitudinal axis, wherein the drawer rail is movable along the longitudinal axis in the opening and closing direction of the movable furniture part, a drive device for moving the drawer rail and the movable furniture part connectable thereto at least in a partial range of the path of movement between a closed position and an open position, and a depth adjustment device for adjusting the closed position of the drawer rail relative to the carcass rail, wherein the depth adjustment device comprises a support,The invention comprises a stop element movable relative to the support along the longitudinal axis and a depth adjustment wheel rotatably mounted on the support about a pivot axis for moving the stop element along the longitudinal axis. Furthermore, the present invention relates to a piece of furniture comprising a furniture body, a movable furniture part, and such a pull-out guide.

[0003] For drawer runners and furniture in general, it is important that the individual components have a uniform design and are arranged regularly when installed. Above all, the furniture fronts should present a consistent appearance. This means that all drawer fronts, whether for drawers arranged side-by-side or one above the other, should lie in the same (vertical) plane when closed. To achieve this in furniture with integrated drawer runners, so-called depth adjustment mechanisms are provided. These allow the relative position between the cabinet rail and the drawer rail (in the horizontal direction) to be changed and adjusted when closed.

[0004] AT 512 748 B1 shows an adjusting device for setting the position of a drawer relative to a drawer slide, with a stop that rests against the drawer slide and is movable by an adjusting wheel. Thus, this device does not adjust the relative position between the drawer slide and the cabinet slide in the closed position, but rather the relative position of the drawer to the drawer slide. No ejection device is described. Furthermore, the adjusting wheel rotates around a pivot axis that is oriented perpendicular to the longitudinal axis of the drawer slide.

[0005] A very similar device is shown in EP 2 661 194 B1, whereby in this prior art the adjusting wheel is rotatable about a pivot axis which is aligned parallel to the longitudinal axis of the drawer rail.

[0006] In contrast, an example of a piece of furniture with a depth adjustment mechanism for setting the relative position between the drawer slide and the cabinet slide is described in DE 10 2016 120 586 A1. The described ejection device has a force-actuated drive element. The position of this drive element relative to a follower can be adjusted via a knurled nut to set the closing position of the movable furniture part. In the described furniture fitting, the ejection device, including the drive element and knurled nut, is either completely fixed to the furniture cabinet or fixed to the movable furniture part. An example with ejection devices attached to both sides of the underside of the drawer is shown. One disadvantage of the version fixed to the furniture cabinet is that the knurled nut, located deep within the cabinet, is then very difficult or almost impossible to reach by hand.In the version fixed to the furniture body, one disadvantage is that the ejection device takes up a relatively large amount of space on the drawer, and that as a result, the entire furniture fitting (drawer guide including ejection device) has to be relatively wide.

[0007] The ejection device is designed in a very similar manner according to EP 2 654 507 B1. To adjust the gap between the front panel and the furniture body, an adjustment mechanism for the ejection stop is provided on the slide, which has an adjustment range. By turning the nut, the ejection stop can be moved in the closing or opening direction. The adjustment of the panel gap can be carried out with the drawer open or closed, although access to the nut on the underside of the drawer is better when the drawer is open. A disadvantage here, too, is that the entire furniture fitting takes up a lot of space and is relatively wide. A similar embodiment is shown in the embodiment described in DE 202015 104 436 U1, in which the ejector unit and the adjustment arrangement attached to this ejector unit are mounted on the underside of a drawer.Only in the description is a variant mentioned whereby the device can also be attached to the guide elements of the furniture component and / or to the furniture body. Regarding the adjustment arrangement, it is also stated that this can be designed independently of other elements, such as an ejector or a trigger for the device's energy storage unit, on the furniture and / or on the movable furniture component and / or on the guide elements of the furniture component. It is not stated that the adjustment arrangement is designed or positioned independently of the entire ejector unit.

[0008] EP 1 996 046 B1 discloses a device for controlling the movement of furniture parts that can be moved relative to each other. Adjustment means are provided for setting the position of a positioning element on the movement rail, to which a push-pull element acts to apply the driving force to the furniture part. The adjustment element is fixed to a mounting element, which in turn is attached to the drawer slide. In contrast, the sliding rod of the push-pull element is attached to the base rail section (corresponding to the cabinet rail) via a guide profile. Thus, the adjustment element is associated with the drawer slide, while the push-pull element, including the sliding rod (corresponding to the ejection device), is associated with the cabinet rail. A complicating factor of this prior art is that the sliding rod must be fixed to the adjustment element.This is achieved, for example, by a fixing screw screwed onto an end face of the pin, which prevents the sliding rod from being pulled out of the adjusting ring. The pin can also be pressed, welded, glued, crimped, pinned, or similarly fixed in the insertion opening. Thus, the sliding rod must always follow the entire range of motion of the drawer slide relative to the base rail (cabinet rail). This necessitates a very long sliding rod, which is relatively complex and time-consuming. A further disadvantage of this prior art is the difficult accessibility of the adjustment mechanism. Specifically, adjustment can only be made using a suitable tool (e.g., a Phillips screwdriver). The object of the present invention is to provide an alternative to the known prior art for drawer slide guides.In particular, the disadvantages inherent in the state of the art should be eliminated or avoided as far as possible.

[0009] This is solved by an extraction guide with the features of claim 1.

[0010] In the extraction guide according to the invention, the axis of rotation of the depth adjustment wheel is aligned parallel to the longitudinal axis. This allows for simple operation of the depth adjustment wheel.

[0011] Furthermore, according to the invention, the drive device is mounted on the cabinet rail. This allows the drive device to remain attached to the furniture cabinet and prevents it from moving with the movable part of the furniture when opening and closing.

[0012] According to the invention, the support for the depth adjustment mechanism is mounted on the drawer rail. This allows easy access to the depth adjustment mechanism. Especially when the movable part of the furniture is open, the depth adjustment mechanism can be reached quickly and easily by hand. The depth adjustment mechanism is therefore not "hidden" somewhere inaccessible deep within the furniture body.

[0013] Furthermore, according to the invention, the stop element rests against a stop counterpart of the drive device in the closed position and can be detached from the stop counterpart during the movement from the closed to an open position. Thus, the stop element does not need to be in constant contact with the stop counterpart. The stop element therefore does not need to follow the entire opening and closing path of the drawer slide. In other words, the stop element is detachably connected to the stop counterpart. Specifically, this design ensures that the stop element is spaced away from the stop counterpart of the drive device once a certain open position is reached. The stop element therefore only moves with the stop counterpart over a portion of the opening and closing path. Preferred embodiments of the present invention are defined in more detail in the dependent claims.

[0014] For a simple design of the depth adjustment device, it is provided that the stop element has a driver and a motion transmission area connected to the depth adjustment wheel.

[0015] The driver can be designed as a simple, preferably flat, stop surface. However, it is preferred that the driver be bolt-shaped.

[0016] It is preferably provided that the bolt-shaped driver extends perpendicular to the longitudinal axis and – when installed in the furniture body – in a vertical direction.

[0017] To enable motion conversion, it is preferably provided that the motion transmission area is designed as an external thread wound around the axis of rotation.

[0018] According to a preferred embodiment, the depth adjustment wheel is designed to be sleeve-shaped around the axis of rotation, at least in some areas.

[0019] It is particularly preferred that the depth adjustment wheel has an internal thread wound around the axis of rotation, wherein this internal thread corresponds to the external thread of the motion transmission area.

[0020] Furthermore, it is preferably provided that the internal thread is formed on an inner surface of the depth adjustment wheel that forms an angle of no more than 180° around the axis of rotation, and that the depth adjustment wheel has a recess in that area which is radially opposite said inner surface. In other words, the depth adjustment wheel has a relief (recess or opening) in the area radially opposite the internal thread. This relief ensures that the depth adjustment wheel and its thread do not have to be laboriously turned out during manufacturing in an injection mold. This makes demolding the depth adjustment wheel considerably easier.

[0021] It is particularly preferred that the depth adjustment wheel has an actuation area formed by the cylindrical surface of the depth adjustment wheel around the axis of rotation. This actuation area is therefore not formed on an end face of the depth adjustment wheel, but on its cylindrical surface. This allows the depth adjustment wheel to be turned and thus actuated directly by hand, without tools.

[0022] According to a preferred embodiment, the depth adjustment wheel has knurling on its outer surface, preferably on its cylindrical surface, preferably aligned along the longitudinal axis. This allows the depth adjustment wheel to be gripped and operated more easily with the fingers.

[0023] It is preferably provided that the depth adjustment device has a detent and corresponding detent recesses, preferably arranged at regular intervals around the longitudinal axis. This creates a "ratcheting" sensation when actuated. The operator can thus better judge how far the depth adjustment wheel has already been turned. Each engagement in a further detent recess corresponds to a further depth change by a specific distance (e.g., 0.1 mm to 0.5 mm).

[0024] To prevent the stop element from rotating when the depth adjustment wheel is turned, the depth adjustment device is designed to have an anti-rotation mechanism for the stop element in the carrier.

[0025] The drive device can be designed as a retraction device for retracting the movable furniture part from an open position to a closed position.

[0026] Preferably, the retraction device comprises a support attached to the cabinet rail, a retraction carriage movable relative to the support, and a retraction force accumulator connected to the support and the retraction carriage. The retraction device may also include a damper to dampen the retraction movement, thereby ensuring smooth and effortless closing.

[0027] Alternatively (or additionally) to the ejection device, it can be provided that the drive device is designed as an ejection device for ejecting the drawer rail from the closed position into an open position.

[0028] Preferably, the ejection device comprises a support attached to the body rail, an ejection slide movable relative to the support, and an ejection force storage device connected to the support and the ejection slide.

[0029] Preferably, the ejection device includes a locking mechanism for securing the ejection slide in a locked position. By pushing the movable furniture part into an over-pressure position behind the closed position, the locking mechanism is unlocked, and the ejection force accumulator pushes the ejection slide, along with the movable furniture part, in the opening direction. The locking mechanism can have a heart-shaped locking track and a locking pin movable within this locking track. However, other locking configurations are also possible, for example, based on the ballpoint pen principle.

[0030] Furthermore, it is preferably provided that, in the closed position, the ejector carriage of the ejection device rests against the stop element of the depth adjustment device via the stop counterpart formed on the ejector carriage. When the ejector carriage is in the closed position at a specific relative position to the drawer runner (and thus to the furniture carcass), the relative position of the drawer runner to the carcass runner can be changed by adjusting the stop element along its longitudinal axis. This, in turn, causes the depth position of the movable furniture component and its front panel to be adjusted relative to the furniture carcass.

[0031] To ensure the reliable movement of the driver with the ejector slide in both the opening and closing directions, it is preferably provided that the ejector slide has a catch lever that forms part of the stop counterpart. In the closed position, this catch lever engages the driver of the stop element and holds it securely. Upon reaching a certain open position (e.g., after an opening travel of approximately 30 mm to 120 mm), the releasable connection between the catch lever and the driver is released.

[0032] Protection is also granted for a piece of furniture comprising a furniture body, a movable furniture part and a pull-out guide according to the invention.

[0033] It is particularly preferred that the movable furniture part is mounted on the furniture body in a movable manner via two extension guides mounted on opposite sides of the furniture body, preferably designed to be mirror-symmetrical to each other.

[0034] Further details and advantages of the present invention are explained in more detail below with reference to the description of the figures and the exemplary embodiments illustrated in the drawings. These show:

[0035] Fig. 1 schematically shows a piece of furniture with several movable furniture parts arranged one above the other in different positions,

[0036] Fig. 2 shows a perspective view of a movable piece of furniture with two pull-out guides including

[0037] Drive device,

[0038] Fig. 3 shows a perspective view of a movable piece of furniture including a pull-out guide.

[0039] Fig. 4 shows a detail from Fig. 3.

[0040] Figs. 5-10 show a top view of the movable furniture part including the extension guide with the depth adjustment device in different positions and details of the depth adjustment devices.

[0041] Fig. 11 shows a perspective view of an extension guide with a first variant of the

[0042] Drive device,

[0043] Fig. 12 shows a detail from Fig. 11.

[0044] Fig. 13 shows a vertical section through the extension guide according to Fig. 11 ,

[0045] Fig. 14 shows a detail from Fig. 13.

[0046] Fig. 15 shows a perspective view of an extension guide in the closed position with a second variant of the drive device,

[0047] Fig. 16 a detail from Fig. 15, Fig. 17 the extension guide according to Fig. 15 in an open position, Fig. 18 a detail from Fig. 17, Figs. 19-38 different representations, perspectives, sections and details of a first embodiment of the depth adjustment device,

[0048] Figs. 39-45 show different representations, perspectives, sections and details of a second embodiment of the depth adjustment device and

[0049] Figs. 46-49 show different representations, perspectives and details of a third embodiment of the depth adjustment device.

[0050] Figure 1 shows a piece of furniture 8 with a cabinet 3 and a total of four movable furniture parts 2 in the form of drawers. Each drawer consists of at least a drawer compartment 10 and a front panel 11. The drawers are attached to the cabinet 3 via a drawer slide 1, consisting of a drawer rail 5 and a cabinet rail 4 (and optionally a center rail, not shown).

[0051] A drive device 6 is schematically shown for the top drawer. The drive device 6 has a support 62. In this case, this support 62 is attached to the drawer slide 5. According to the invention, however, the drive device 6 is attached to the cabinet rail 4 – in contrast to Fig. 1. In this case, the drive device 6 is designed as an ejection device 61, with the ejection slide 63 and the ejection force storage unit 65 of this ejection device 6 being schematically shown. The locking device 66 has a guide track 67 formed in the support 62 and the locking pin 68 guided in the (in this case, heart-shaped) guide track 67. A driver 74 is arranged on the cabinet rail 4 (or on the furniture cabinet 3 itself), with which the ejection device 61 engages at least partially.According to the invention, however, the arrangement is reversed: that is, the drive device 6 is assigned to the cabinet rail 4, while the driver 74 is assigned to the movable furniture part 2. This uppermost drawer is in the open position OS.

[0052] When the drawer is moved from this open position OS in the closing direction SR, the locking pin 68 moves in a closing section of the guide track 67. In this process, the ejection force storage unit 65 is tensioned by a relative movement between the ejection slide 63 and the support 62.

[0053] In the closed position SS (third drawer from the top), the ejection force accumulator 65 is fully tensioned. This closed position SS can be achieved by a purely manual closing movement. Alternatively, the drawer – if present – ​​can be moved or retracted into the closed position SS by the retraction device 69, which is shown only schematically and is integrated into the extension guide 1.

[0054] Starting from the closed position SS, pressing on the drawer moves it into the over-pressure position ÜS (bottom drawer in Fig. 1). This unlocks the locking device 66. After over-pressure in the closing direction SR, as soon as the user releases the drawer, the drive device 6 ejects the drawer in the opening direction OR. This moves the drawer into the open position OS, corresponding to the second drawer from the top. In this position, the drawer can be accessed, for example, by gripping the front panel 11 and manually moved further into the position corresponding to the first drawer from the top.

[0055] Figure 2 shows a perspective view of a drawer (movable furniture part 2) with a drawer compartment 10 and a front panel 11. Also shown is an arrangement of two drawer guides 1, each with two drawer runners 5 and two cabinet runners 4, wherein one drawer runner 5 and one cabinet runner 4 of the drawer guide 1 are provided on each side of the drawer. Figure 2 also shows a drive device 6. The drive device 6 is attached to the cabinet runner 4. This drive device 6 (or its support 62) extends in the closing direction SR of the drawer. This closing direction also corresponds to the longitudinal axis L of the drawer runner 5 or the entire drawer guide 1. Especially with smaller or narrower drawers 2, it is sufficient if only one drive device 6 is assigned to the drawer. This can (as shown) be assigned to the right-hand drawer guide 1 (but also to the left-hand drawer guide 1). In Figure 2,Figure 3 shows a movable furniture component 2, including drawer rail 5 and cabinet rail 4, in perspective. The depth adjustment device 7, which is mounted on the drawer rail 5, is shown in the circle.

[0056] Fig. 4 shows an enlarged version of the detail depicted in a circle in Fig. 3. The essential components of the depth adjustment device 7 are thus recognizable. This depth adjustment device 7 consists of the support 71, the stop element 72, and the depth adjustment wheel 73. The support 71 is rigidly connected to the drawer rail 5. The stop element 72 is slidably mounted in the support along the longitudinal axis L. The depth adjustment wheel 73, in turn, is rotatable about the axis of rotation D. As can be seen, the axis of rotation D and the longitudinal axis L are aligned parallel to each other.

[0057] In Figures 5 to 10, the movable furniture part 2 with the extension guide 1 is shown from above and in the closed position SS, with the differently adjusted depth adjustment device 7 producing a different dimension for the front panel gap F in each case. Generally, in Figures 5 to 10, the movable furniture part 2 is partially obscured, allowing a view towards the depth adjustment device 7 and the drive mechanism 6.

[0058] In Fig. 5 and in detail according to Fig. 6, it can be seen that the stop element 72 is extended relatively far relative to the carrier 71. Since the stop element 72 rests against the stop counterpart 60 (not shown in detail here) of the drive device, a relatively large front panel gap F is present.

[0059] When the depth adjustment device 7 is actuated via the depth adjustment wheel 73, the stop element 72 is moved linearly relative to the carrier 71. In Fig. 7 and the associated detail 8, this results in a smaller front panel gap F in the closed position SS.

[0060] If the depth adjustment wheel 73 is turned further in the same direction, a position is soon reached as shown in Fig. 9 and the corresponding detail in Fig. 10. The stop element 72 is almost completely retracted into the carrier 71. The front panel gap F is practically non-existent. A comparison of Figs. 5, 7, and 9 also shows that in the closed position SS, there is a different relative position between the cabinet rail 4 and the drawer rail 5 in each case.

[0061] In Fig. 11 and the corresponding detail in Fig. 12, the extension guide 1 is shown in perspective. The drive device 6 is located between the drawer rail 5 and the cabinet rail 4. This results in a relatively narrow overall design for the furniture fitting. The furniture fitting is thus laterally limited by the two rails 4 and 5; the drive device 6 does not protrude laterally.

[0062] In Fig. 13 and the corresponding detail in Fig. 14, the drawer guide 1 is shown as a (vertical) section. It can be seen that the cabinet rail 4 and the drawer rail 4 are each designed as curved metal profiles. The drawer rail 5 is movably mounted on the cabinet rail 4 via rollers 9. In Fig. 14, the support 71 and its attachment to the drawer rail 5, as well as the stop element 72, are particularly visible.

[0063] Figures 15 to 18 show, in perspective and detail, another embodiment of the extension guide 1. This embodiment differs from the previous one in the design of the drive device 6. In this case, the drive device 6 is designed as a retraction device 69, whereas in Figure 11 the drive device 6 is designed as an ejection device 61.

[0064] It may also be provided that the drive device 6 combines both functions and acts as both an ejection device 61 and a retraction device 69.

[0065] In Fig. 15, the extension guide 1 is in the closed position SS, whereas in Fig. 17, the extension guide is shown in an open position OS. In the closed position SS, the stop element 72 rests against the stop counterpart 60 of the drive device 6. In contrast, in Fig. 17, the stop element 72 is spaced apart from the stop counterpart 60 and thus detached. This stop counterpart 60 can be formed on a catch lever. In the closed position SS, the catch lever engages the driver 74 of the stop element 72 and holds it in a positive-locking manner. During movement in the opening direction OR, the positive-locking connection is released by pivoting the catch lever.

[0066] Figures 15 to 18 show the so-called drawer slide 12. This serves as a connecting device for connecting the drawer container 10 to the drawer slide 5.

[0067] Figures 19 to 38 show a first embodiment of a depth adjustment device 7 in different representations, perspectives, (partial) sections and details.

[0068] Fig. 19 shows an exploded view of the components of the depth adjustment device 7.

[0069] The support 71 is designed as a curved bracket, preferably made of metal. This support 71 has a base region 711 and two retaining tabs 712 projecting substantially perpendicularly from the base region 711, each with guide openings 713 formed therein. Furthermore, an opening 714 for the locking element 7c is formed in the support 71.

[0070] The stop element 72 is slidably mounted in the guide openings 713 along the longitudinal axis L. The stop element 72 has a bolt-shaped driver 74 and a motion transmission area 75. The motion transmission area 75 is designed as an external thread 76 wound around the axis of rotation D.

[0071] Between the driver 74 and the external thread 76, the stop element 72 has lateral projections 721. These projections 721, together with corresponding recesses in the area of ​​the guide opening 713, form an anti-rotation mechanism for the stop element 72 in the carrier 71, preventing the stop element 72 from rotating about the axis of rotation D. The depth adjustment wheel 73 is at least partially sleeve-shaped around the axis of rotation D and has an elongated opening with an internal thread 77 wound around the axis of rotation D. This internal thread 77 corresponds to the external thread 76 of the motion transmission area 75 of the stop element 72. On its outer surface—specifically on its cylindrical surface—the depth adjustment wheel has knurling 79. This knurling 79 is lamellar or rib-shaped, with the lamellae or ribs extending along the longitudinal axis L.

[0072] The depth adjustment wheel 73 has detent recesses 7b (these correspond to the "lamella valleys"). These detent recesses 7b correspond to the detent lug 7a of the locking element 7c. When the depth adjustment wheel 73 is turned, a "ratcheting" sensation is produced via this detent lug 7a. In addition, the depth adjustment wheel 72 is held in its position by the locking element 7c, so that it cannot rotate on its own around the stop element 72 in the event of vibrations and thereby unintentionally change the depth position or the front aperture gap F.

[0073] Fig. 20 shows the depth adjustment device in its assembled state. The stop element 72 is guided through the two guide openings 713 and the depth adjustment wheel 73 is rotatably mounted on the stop element 72, whereby movement of the depth adjustment wheel 73 along the longitudinal axis L is prevented by the retaining tabs 712 of the support 71.

[0074] Fig. 21 shows the same representation as Fig. 20.

[0075] Figure 22 provides a better view of the depth adjustment wheel 73. It can be seen that the depth adjustment wheel 73 has a recess 78. This is advantageous for manufacturing the depth adjustment wheel 73 and its internal thread 77 in a plastic injection molding process.

[0076] Fig. 23 shows a view through the recess 78 of the depth adjustment wheel 23, revealing a small portion of the internal thread 77 and a larger portion of the external thread 76. The knurling 79 on the outer surface of the depth adjustment wheel 23 is also clearly visible. The detail shown in Fig. 23 is taken from the perspective view of the depth adjustment mechanism 7 in Fig. 24.

[0077] Figures 25 and 26 show the depth adjustment device 7, cut off in the middle, from different perspectives.

[0078] Figure 27 shows that the stop element 72 is flattened on one side in the area of ​​the external thread 76. This makes the rotational movement of the depth adjustment wheel 73 on the external thread 76 smoother, as there is less friction.

[0079] Fig. 28 shows a detail of the depth adjustment device 7 belonging to Fig. 29.

[0080] Figures 30 to 34 show the depth adjustment wheel 73 from different perspectives. In the front view according to Figure 32, it can be seen that the thread protrusions of the internal thread 77 stand out from the rest of the inner surface of the depth adjustment wheel 73 in the direction of the axis of rotation D. This allows for relatively smooth rotation. Figures 33 and 34 show that the internal thread 77 is not formed around the full circumference, but only around half the circumference of the inner surface of the depth adjustment wheel 73. Radially opposite this internal thread 77 is the recess 78.

[0081] Figure 35 shows a section through the depth adjustment device 7, which is illustrated in Figure 36. The internal thread 77 and the corresponding external thread 76 are clearly visible. The locking element 7c with its locking lug 7a, the bolt-shaped driver 74, and the support 71 are also visible.

[0082] By turning the adjusting wheel 73 around the axis of rotation D, the depth adjustment device 7 is brought into the position shown in Figs. 37 and 38.

[0083] Fig. 39 shows another embodiment of a depth adjustment device 7. The stop element 72, including the driver 74 and motion transmission area 75, is practically identical to that of the previous embodiment. Differences exist in the depth adjustment wheel 73, which has fewer lamellar knurling 79. However, this depth adjustment wheel 73 has more, specifically three, recesses 78.

[0084] Fig. 40 shows the depth adjustment device 7 according to Fig. 39 in its assembled state.

[0085] Figures 41 to 43 show the depth adjustment wheel 73 from different perspectives. The recesses 78 are clearly visible in Figure 41.

[0086] Fig. 42 shows a top view of a depth adjustment wheel 73 that has been cut open halfway. This provides a clear view of the three separate internal threads 77, each of which is arranged radially opposite a recess 78.

[0087] In section according to Fig. 43, the locking stud 7a, which in this case is formed directly on the depth adjustment wheel 73, can be seen.

[0088] The section shown in Fig. 44 is illustrated in Fig. 45. The three semi-shell-shaped internal threads 77 are each arranged opposite the recesses 78 and correspond to the external thread 76 of the stop element 72.

[0089] Figures 46 to 49 show a third embodiment of the depth adjustment device 7. In contrast to the previous embodiments, a spreading element 722 is arranged at the end of the stop element 72 furthest from the drive. This prevents the stop element 72 from being completely unscrewed from the carrier 71 and the depth adjustment wheel 73.

[0090] Fig. 48 shows the different configuration of the locking element 7c. In detail, as shown in Fig. 49, the locking lug 7a is held between the lamellar knurling 79 on the outer surface of the depth adjustment wheel 73. Reference numeral list:

[0091] 1. Extraction guide

[0092] 2 movable furniture parts

[0093] 3 Furniture carcass

[0094] 4 cabinet rails

[0095] 5 loading rails

[0096] 6 Drive device

[0097] 60 Stop counterpart

[0098] 61 Ejection device

[0099] 62 carriers

[0100] 63 ejection sleds

[0101] 65 Ejection energy storage

[0102] 66 Locking device

[0103] 67 Guide track

[0104] 68 locking pins

[0105] 69 Retraction device

[0106] 7 Depth adjustment device

[0107] 71 carriers

[0108] 711 Basic area

[0109] 712 retaining tabs

[0110] 713 guide openings

[0111] 714 Opening

[0112] 72 Stop element

[0113] 721 protrusions

[0114] 722 Spreading element

[0115] 73 Depth adjustment wheel

[0116] 74 drivers

[0117] 75 Motion transmission range

[0118] 76 external threads

[0119] 77 Internal thread

[0120] 78 Exclusion

[0121] 79 knurling

[0122] 7a Locking stud

[0123] 7b Snap-in recesses 7c Locking element

[0124] 8 pieces of furniture

[0125] 10 drawer containers

[0126] 11 Front panel 12 Drawer rail

[0127] L Longitudinal axis

[0128] OR Opening direction

[0129] SR closing direction

[0130] OS Open position SS Close position

[0131] Overpressure setting

[0132] D axis of rotation

[0133] F Front panel gap

Claims

Patent claims 1. Extension guide (1) for a furniture part movable relative to a furniture carcass (3) (2), in particular for a drawer, with - a cabinet rail (4) to be connected to the furniture body (3), - a drawer rail (5) movably mounted on the body rail (4), which can be connected to the movable furniture part (2) and has a longitudinal axis (L), wherein the drawer rail (5) is movable along the longitudinal axis (L) in the opening and closing direction (OR, SR) of the movable furniture part (2), - a drive device (6) for moving the drawer rail (5) and the movable furniture part (2) that can be connected to it, at least in a partial area of ​​the movement path between a closed position (SS) and an open position (OS) and - a depth adjustment device (7) for adjusting the closing position (SS) of the drawer rail (5) relative to the cabinet rail (4), wherein the depth adjustment device (7) comprises a support (71), a stop element (72) movable relative to the support (71) along the longitudinal axis (L) and a depth adjustment wheel (73) rotatably mounted on the support (71) about a pivot axis (D) for moving the stop element (72) along the longitudinal axis (L), wherein - the axis of rotation (D) of the depth adjustment wheel (73) is aligned parallel to the longitudinal axis (L), - the drive device (6) is mounted on the cabinet rail (4), - the support (71) of the depth adjustment device (7) is mounted on the drawer rail (5) and - the stop element (72) in the closed position (SS) rests against a stop counterpart (60) of the drive device (6) and can be detached from the stop counterpart (60) during the movement path from the closed position (SS) to an open position (OS).

2. Extraction guide according to claim 1, wherein the stop element (72) has a, preferably bolt-shaped, driver (74) and a depth adjustment wheel (73) has a related motion transmission area (75).

3. Extension guide according to claim 2, wherein the bolt-shaped driver (74) extends perpendicularly to the longitudinal axis (L) and - in the state installed in the furniture body (3) - in a vertical direction.

4. Extraction guide according to claim 2 or 3, wherein the motion transmission area (75) is designed as an external thread (76) wound around the axis of rotation (D).

5. Extraction guide according to one of claims 1 to 4, wherein the depth adjustment wheel (73) is formed at least partially in a sleeve-like shape around the axis of rotation (D).

6. Extraction guide according to claims 4 and 5, wherein the depth adjustment wheel (73) has an internal thread (77) wound around the axis of rotation (D), wherein this internal thread (77) corresponds to the external thread (76) of the motion transmission area (75).

7. Extraction guide according to claim 6, wherein the internal thread (77) is formed on an inner surface of the depth adjustment wheel (73) which assumes an angle of at most 180° about the axis of rotation (D) and the depth adjustment wheel (73) has a recess (78) in that area which is radially opposite said inner surface.

8. Extension guide according to one of claims 1 to 7, wherein the depth adjustment wheel (73) has an actuation area formed by a cylindrical surface of the depth adjustment wheel (73) formed around the axis of rotation (D).

9. Extension guide according to one of claims 1 to 8, wherein the depth adjustment wheel (73) has on its outside, preferably on its cylindrical surface, a knurling (79) preferably aligned along the longitudinal axis (L).

10. Extension guide according to one of claims 1 to 9, wherein the depth adjustment device (7) has a locking lug (7a) and with the locking lug (7a) has corresponding locking recesses (7b) arranged preferably at regular intervals around the longitudinal axis (L).

11. Extraction guide according to one of claims 1 to 10, wherein the The depth adjustment device (7) has an anti-rotation mechanism for the stop element (72) in the carrier (71).

12. Extension guide according to one of claims 1 to 11, wherein the drive device (6) is designed as an ejection device (61) for ejecting the drawer rail (5) from the closed position (SS) into an open position (OS).

13. Extension guide according to claim 12, wherein the ejection device (61) comprises a support (62) attached to the body rail (4), an ejection slide (63) movable relative to the support (62) and an ejection force storage device (65) connected to the support (62) and the ejection slide (63).

14. Extraction guide according to claim 13, wherein in the closed position (SS) the ejection slide (63) of the ejection device (61) rests against the stop element (72) of the depth adjustment device (7) via the stop counterpart (60) formed on the ejection slide (63).

15. Extraction guide according to claim 14, wherein the ejection slide (63) has a catch lever forming the stop counterpart (60), which in the closed position (SS) engages the driver (74) of the stop element (72) and holds it in a form-fitting manner.

16. Furniture (8) comprising a furniture body (3), a movable furniture part (2) and a pull-out guide (1) according to one of claims 1 to 15.

17. Furniture according to claim 16, wherein the movable furniture part (2) is movably mounted on the furniture body (3) via two extension guides (1) mounted on opposite sides of the furniture body (3), preferably designed in a mirror-symmetrical manner to each other.