Pull-out guide for a drawer element

Abstract

The invention relates to a pull-out guide for a drawer element. The pull-out guide has: a guide rail which can be mounted on a furniture carcass; a centre rail which is mounted such that it can be displaced relative to the guide rail; and a running rail which is mounted such that it can be displaced relative to the centre rail and the guide rail and which can be mounted on the drawer element. In addition, the running rail can be moved in an opening direction and in an opposite closing direction. The pull-out guide also has a guide rail synchronisation element and a running rail synchronisation element, both of which can be displaced relative to the opening direction. The guide rail synchronisation element has a guide rail rack. The running rail synchronisation element has a running rail rack. A synchronisation gear is rotatably mounted on the centre rail and meshes with the running rail rack and the guide rail rack. The running rail synchronisation element is arranged at least partially between the running rail and the centre rail. The guide rail synchronisation element has a first portion between the guide rail and the centre rail and a second portion with the guide rail rack that engages around the centre rail. A support element fixedly connected to the guide rail is arranged below the second portion.

Description

[0001] Pull-out guide for a drawer element

[0002] The invention relates to a pull-out guide for a drawer element, in particular for a drawer. The invention further relates to a drawer element with such a pull-out guide and a piece of furniture with such a drawer element.

[0003] Pull-out guides are known from the prior art and can, for example, have a guide rail that can be mounted on a furniture carcass, a middle rail that is mounted so that it can move relative to the guide rail, and a running rail that is mounted so that it can move relative to the guide rail and the middle rail. The guide rail can be referred to as a carcass rail. The running rail can be mounted on the drawer element and can be referred to as a drawer rail. The running rail can be moved from a closed position to an open position in an opening direction and from the open position to the closed position in a closing direction opposite to the opening direction. Furthermore, synchronization means are known from the prior art with which the movement of the rails, i.e. the guide rail, the middle rail, and the running rail, can be coordinated. These can, in particular, comprise cable pulls and / or racks and gears.

[0004] For example, from the document EP 2 187 780 B1, a drawer guide is known in which a gear and racks are used for synchronisation and in which the centre rail is partially perforated in order to arrange the gear in this opening.

[0005] From the document DE 20 2014 106 001 Ul a pull-out guide is also known in which a gear and racks are used for synchronization, and in which the gear and racks are arranged on one side of the center rail.

[0006] The invention is based on the object of providing an improved drawer guide. Further objects of the invention are the provision of a drawer element with such a drawer guide and a piece of furniture with such a drawer element. These objects are achieved by the subject matter of the independent patent claims. Advantageous further developments are specified in the dependent patent claims.

[0007] A pull-out guide for a drawer element, in particular for a drawer, has a guide rail that can be mounted on a furniture carcass, a center rail that is mounted so that it can be moved relative to the guide rail, and a running rail that is mounted so that it can be moved relative to the guide rail and the center rail. The guide rail can be referred to as a carcass rail. The running rail can be referred to as a drawer rail. The running rail can be mounted on the drawer element. In addition, the running rail can be moved from a closed position to an open position in an opening direction and from the open position to the closed position in a closing direction opposite to the opening direction. The pull-out guide further has a guide rail synchronization element and a running rail synchronization element. The guide rail synchronization element can be moved on the guide rail relative to the opening or closing direction.The guide rail synchronization element is displaceable along the guide rail relative to the opening and closing directions. The guide rail synchronization element has a guide rail rack. The guide rail synchronization element has a guide rail rack. A synchronization gear is rotatably mounted on the center rail. The synchronization gear meshes with the guide rail rack and with the guide rail rack. The guide rail synchronization element is arranged at least partially between the guide rail and the center rail. The guide rail synchronization element has a first section and a second section. The first section is arranged between the guide rail and the center rail. The second section surrounds the center rail. The guide rail rack is arranged in the second section of the guide rail synchronization element.A support element firmly connected to the guide rail is arranged below the second section.

[0008] In the drawer guide according to the invention, it can be provided that the movements of the rails, i.e., the guide rail, the center rail, and the running rail, are synchronized based on a position relative to one another defined by the synchronization gear, the guide rail rack, and the running rail rack. In particular, it can be provided that the guide rail synchronization element is held on the guide rail essentially by friction and / or the running rail synchronization element is held on the running rail essentially by friction. However, if the drawer guide is actuated with a great force, the synchronization elements, i.e., the guide rail synchronization element and the running rail synchronization element, can slide along the respective rails, thus counteracting damage.

[0009] The support element serves to support the second section of the guide rail synchronization element. In particular, the support element can be designed to support meshing of the synchronization gear with the guide rail rack and / or meshing of the synchronization gear with the guide rail rack when the drawer guide is loaded in a direction different from the opening or closing direction. This can prevent the synchronization gear from skipping or at least reduce the likelihood of the synchronization gear skipping. This can improve the synchronization of the rails.The support element can therefore be used to define a maximum distance between the running rail rack and the guide rail rack when the pull-out guide is loaded in the load direction, in order to prevent or at least make it more difficult for the synchronization gear to no longer engage with the running rail rack and / or the guide rail rack.

[0010] The guide rail may have a mounting surface, and the sliding element may be arranged on the mounting surface. The mounting surface may be arranged parallel to the opening or closing direction.

[0011] The invention further relates to a drawer element with a pull-out guide according to the invention and a piece of furniture with such a drawer element.

[0012] In one embodiment of the drawer guide, it is designed as a subsurface guide. Especially with subsurface guides, the support element can improve synchronization, since the forces acting on the drawer guide from above can cause the guide rail rack to move away from the guide rail rack, thus causing the synchronization gear to skip.

[0013] In one embodiment of the drawer slide, the second section has a U-shaped cross-section. The second section has a base, a first leg, and a second leg, which can form a U of the U-shaped cross-section. The first leg merges into the first section. The guide rail rack is part of the second leg. The support element is arranged below the base. This results in an efficient design of the guide rail synchronization element, in which as little material as possible is consumed while still achieving good support from the support element.

[0014] In one embodiment of the pull-out guide, it further comprises a mounting element. The mounting element has a mounting side for mounting on a furniture carcass and a rail support area for fastening the guide rail. The guide rail is fastened to the rail support area. This fastening can be achieved by means of a screw connection, a welded connection and / or by a one-piece design of the guide rail and the mounting element. The mounting element can be designed as an angle. The mounting element can be guided along the length of the pull-out guide or designed as several elements with a gap or gaps. It can be provided that a rail package consisting of a guide rail, center rail and running rail with the associated synchronization elements and the other described components is fastened to a respective mounting element.For example, pull-out guides that are to be arranged to the left and right of the drawer element can each have an identical rail package and only differ in the mounting element, or they can have two rail packages that are symmetrical to one another and thus be designed symmetrically to one another overall.

[0015] In one embodiment of the drawer slide, the rail support area and the support element are designed as a single piece. This allows for a simple assembly of the drawer slide.

[0016] In one embodiment of the drawer slide, the support element is attached to the rail support area. This also allows for a simple assembly of the drawer slide.

[0017] In one embodiment of the drawer guide, the synchronization gear is arranged between the center rail and the guide rail. This is possible because the second section of the guide rail synchronization element engages around the center rail.

[0018] In one embodiment of the pull-out guide, the guide rail is supported on the center rail by means of at least one guide rail rolling element. The guide rail rolling element can be part of the guide rail synchronization element. The guide rail rolling element can be integrated into the center rail and, if necessary, also act as a guide rail rolling element. It can be provided that the guide rail is supported on the center rail by means of several guide rail rolling elements. The guide rail rolling elements can be part of the guide rail synchronization element. The guide rail rolling elements can be integrated into the center rail and, if necessary, also act as a guide rail rolling element.

[0019] In one embodiment of the pull-out guide, the center rail is supported on the guide rail by means of at least one guide rail rolling element. The guide rail rolling element can be part of the guide rail synchronization element. The guide rail rolling element can be integrated into the center rail and, if necessary, also act as a guide rail rolling element. It can be provided that the center rail is supported on the guide rail by means of several guide rail rolling elements. The guide rail rolling elements can be part of the guide rail synchronization element. The guide rail rolling elements can be integrated into the center rail and, if necessary, also act as a guide rail rolling element.

[0020] In one embodiment of the drawer guide, the guide rail synchronization element has a support roller. The support roller faces the support element. The support roller can serve, in particular, to reduce friction between the support element and the guide rail synchronization element when a load is applied to the drawer guide, thus enabling low-friction movement of the rails even under high loads.

[0021] In one embodiment of the drawer slide, the guide rail synchronization element is arranged within a cross-sectional profile of the guide rail. The guide rail synchronization element therefore does not protrude beyond the guide rail. This allows for a compact arrangement of the rail package.

[0022] In one embodiment of the pull-out guide, the cross-sectional profile of the guide rail is essentially rectangular. Essentially rectangular can mean that the cross-sectional profile of the guide rail is exactly rectangular or rectangular with rounded corners. The rounded corners can be produced by means of a bending process and / or a rolling process, whereby the guide rail can be brought into the essentially rectangular shape by means of this bending process and / or this rolling process. The rounded corners can therefore have the minimum bending radii for bent sheets. For example, the bending radii can be less than or equal to one and a half times the sheet thickness, in particular less than or equal to the sheet thickness, whereby the sheet thickness refers to the guide rail. Alternatively, the rounded corners can be determined by the tools for the rolling process.The cross-sectional profile of the guide rail can be a U-profile, with two parallel ends of the U-profile facing the sliding element or a sliding element to be mounted. A base of the U-profile located between the parallel ends can be arranged parallel to the mounting surface. The parallel ends can, in particular, be arranged perpendicular to the mounting surface.

[0023] In one embodiment of the pull-out guide, a cross-sectional profile of the center rail is essentially rectangular and has a vertical end and a horizontal end. The second section encompasses the vertical end. The vertical end can be arranged perpendicular to the mounting surface. The horizontal end can be arranged parallel to the mounting surface. Essentially rectangular can mean that the cross-sectional profile of the center rail is exactly rectangular or rectangular with rounded corners. The rounded corners can be produced by means of a bending process and / or a rolling process, wherein the center rail can be brought into the essentially rectangular shape by means of this bending process and / or this rolling process. The rounded corners can therefore have the minimum bending radii for bent sheets.For example, the bending radii can be less than or equal to one and a half times the sheet thickness, in particular less than or equal to the sheet thickness, where the sheet thickness refers to the center rail. Alternatively, the rounded corners can be determined by the tools used in the rolling process.

[0024] In one embodiment of the pull-out guide, the cross-sectional profile of the center rail has an opening between the vertical end and the horizontal end. The guide rail has a first horizontal section, a second horizontal section, and a vertical section. The vertical section is arranged between the horizontal sections and guided through the opening in the center rail. This results in a compact arrangement of the rail package. The horizontal sections can be arranged parallel to the mounting surface. The vertical section can be arranged perpendicular to the mounting surface. In one embodiment of the pull-out guide, the first horizontal section is arranged within the cross-sectional profile of the center rail. The second horizontal section is arranged below or offset below the first horizontal section. This results in a C-profile or an S-profile of the guide rail.

[0025] In addition to the essentially rectangular cross-sectional profiles of the center rail and the running rail, the running rail, center rail and guide rail can also have other cross-sections, for example triangular or trapezoidal cross-sections.

[0026] The above-mentioned and further listed features can be used individually or in combination. The embodiments shown and described are not to be understood as an exhaustive list, but rather are exemplary in nature for the description of the invention. Further advantages and properties of the invention emerge from the claims and the description of the figures. In each case, a schematic view shows

[0027] Fig. 1 a piece of furniture with a drawer;

[0028] Fig. 2 a front view of a drawer guide;

[0029] Fig. 3 is a side view of the drawer guide of Fig. 2;

[0030] Fig. 4 a front view of another drawer guide;

[0031] Fig. 5 a front view of another drawer guide;

[0032] Fig. 6 a cross-section of another pull-out guide;

[0033] Fig. 7 shows a cross-section of another pull-out guide; and Fig. 8 shows a cross-section of another pull-out guide.

[0034] Fig. 1 shows a cross-section through a piece of furniture 1 with a furniture body 2 and a drawer element 3. The drawer element is, as optionally shown in Fig. 1, designed as a drawer 4. The drawer element 3 or the drawer 4 can be moved in a drawer space 5, in Fig. 1 into the plane of the drawing and / or out of the plane of the drawing. A pull-out guide 10 is connected to the furniture body 2 and the drawer element 3 or the drawer 4 and has a rail package 11. By means of the rail package 11, the drawer 4 can be moved from a closed position to an open position in an opening direction and from the open position to the closed position in a closing direction opposite to the opening direction. In particular, two pull-out guides 10, each with a rail package 11, are provided in the piece of furniture 1 in Fig. 2.Both pull-out guides 10 are connected to the furniture body 2 and to the drawer element 3 or drawer 4.

[0035] Fig. 2 shows a front view of a pull-out guide 10, which can be used, for example, in the furniture 1 shown in Fig. 1. The rail assembly 11 consists of a guide rail 12 mountable on the furniture body 2, a center rail 13 mounted so that it can be moved relative to the guide rail 12, and a running rail 14 mounted so that it can be moved relative to the guide rail 12 and the center rail 13. The guide rail 12 can alternatively be referred to as a body rail. The running rail 14 can alternatively be referred to as a drawer rail.

[0036] The guide rail 14 can be mounted on the sliding element 3. Furthermore, the guide rail 13 can be moved from a closed position to an open position in an opening direction and from the open position to the closed position in a closing direction opposite to the opening direction. The opening direction and the closing direction are arranged perpendicular to the plane of the drawing in the illustration in Fig. 2. The pull-out guide 10 further comprises a guide rail synchronization element 20 and a guide rail synchronization element 30. The guide rail synchronization element 20 can be moved on the guide rail 12 relative to the opening or closing direction. The guide rail synchronization element 30 can be moved on the guide rail 14 relative to the opening or closing direction. The guide rail synchronization element 20 has a guide rail rack 21.The track synchronization element 30 has a track rack 31. A synchronization gear 40 is rotatably mounted on the center rail 13. The synchronization gear 40 meshes with the track rack 21 and with the guide rail rack 31. The track synchronization element 30 is arranged at least partially between the track 14 and the center rail 13. The guide rail synchronization element 20 has a first section 22 and a second section 23. The first section.

[0037] 22 is arranged between the guide rail 12 and the center rail 13. The second section

[0038] 23 engages around the center rail 13. The guide rail rack 21 is arranged in the second section 23 of the guide rail synchronization element 20. A support element 15, which is firmly connected to the guide rail 12, is arranged below the second section 23.

[0039] The pull-out guide 10 can optionally be provided for synchronizing the movements of the rails 12, 13, 14 of the rail assembly 11—that is, the guide rail 12, the center rail 13, and the running rail 14—based on a position relative to one another defined by the synchronization gear 40, the guide rail rack 21, and the running rail rack 31. In particular, it can be provided that the guide rail synchronization element 20 is held on the guide rail 12 essentially by friction and / or the running rail synchronization element 30 is held on the running rail 14 essentially by friction. However, if the pull-out guide 10 is actuated with great force, the synchronization elements 20, 30—that is, the guide rail synchronization element 20 and the running rail synchronization element 30—can slide on the respective rails 12, 14, thus preventing damage.

[0040] The support element 15 serves to support the second section 23 of the guide rail synchronization element 20. In particular, the support element 15 can be designed such that it supports the meshing of the synchronization gear 40 with the guide rail rack 31 and / or the meshing of the synchronization gear 40 with the guide rail rack 21 when the pull-out guide 10 is loaded in a loading direction 16 different from the opening or closing direction. The loading direction 16 can, in particular, be perpendicular to the opening or closing direction and, in the illustration in Fig. 2, point downward. This can prevent the synchronization gear 40 from skipping or at least reduce the likelihood of the synchronization gear 40 skipping. This can improve the synchronization of the rails 12, 13, 14.The support element 15 can therefore serve to define a maximum distance between the running rail rack 31 and the guide rail rack 21 when the drawer guide 10 is loaded in the loading direction 16, in order to prevent or at least impede the synchronization gear 40 from no longer engaging the running rail rack 31 and / or the guide rail rack 21. The running rail 14 can have a mounting surface 17, wherein the thrust element 3 can be arranged on the mounting surface 17. The mounting surface 17 can be arranged parallel to the opening or closing direction.

[0041] The following describes optional features of the drawer guide 10, each of which is referred to as exemplary embodiments. These features are not mandatory, but each, individually and in combination, represents improvements to the drawer guide 10 according to the invention.

[0042] In one embodiment of the pull-out guide 10, it is designed as a concealed guide. Particularly with concealed guides, the support element 15 can improve synchronization, since the forces acting on the pull-out guide 10 from above can result in the guide rail rack 31 moving away from the guide rail rack 21, thereby causing the synchronization gear 40 to skip. Fig. 2 shows such a concealed guide, in which the guide rail 12 is optionally attached to a mounting element 50. The mounting element 50 provides a distance between the rail assembly 11 and the furniture body 2, so that force compensation, as is possible with the support element 15, is particularly advantageous.

[0043] In one embodiment of the drawer guide 10, the second section 23 has a U-shaped cross-section. The second section 23 has a base 24, a first leg 25, and a second leg 26, which can form a U of the U-shaped cross-section. The first leg 25 merges into the first section 22. The guide rail rack 21 is part of the second leg 26. The support element 15 is arranged below the base 24. This results in an efficient design of the guide rail synchronization element 20, in which as little material as possible is consumed while still achieving good support through the support element 15.

[0044] In one embodiment of the pull-out guide 10, it further comprises a mounting element 50. The mounting element 50 has a mounting side 51 for mounting on a furniture body 2 and a rail support area 52 for fastening the guide rail. The guide rail 12 is fastened to the rail support area 52. In the embodiment of Fig. 2, the fastening of the guide rail 12 to the rail support area 52 is implemented by a one-piece design of the guide rail 12 and the mounting element 50. Alternatively, the fastening can also be achieved by means of a screw connection and / or a welded connection.

[0045] The mounting element 50 can be designed as an angle 53, whereby the angle 53 can also be referred to as a mounting bracket. The mounting element 50 can be guided along the length of the pull-out guide 10 or can be designed as several elements with a gap or gaps. It can be provided that the rail package 11 consisting of guide rail 12, center rail 13 and running rail 14 with the associated synchronization elements 20, 30 and the other described components is each fastened to a mounting element 50. Pull-out guides 10 that are to be arranged to the left and right of the drawer element 3 can, for example, each have an identical rail package 11 and differ only in the mounting element 50, or have two mutually symmetrical rail packages 11 and thus be designed symmetrically to one another overall.

[0046] In one embodiment of the drawer guide 10, the rail support area 52 and the support element 15 are designed as a single piece. This enables a simple construction of the drawer guide 10.

[0047] In one embodiment of the drawer guide 10, the synchronization gear 40 is arranged between the center rail 13 and the guide rail 14, as shown in Fig. 2. This is possible because the second section 23 of the guide rail synchronization element 20 engages around the center rail 13.

[0048] In one embodiment of the pull-out guide 10, the guide rail 14 is supported on the center rail 13 by means of at least one guide rail rolling element 32. The guide rail rolling element 32 can be part of the guide rail synchronization element 30, as shown in Fig. 2. The guide rail rolling element 32 can comprise a roller or a needle. It can be provided that the guide rail 14 is supported on the center rail 13 by means of several guide rail rolling elements 32. The guide rail rolling elements 32 can be part of the guide rail synchronization element 30. The guide rail rolling elements 32 can comprise rollers or needles. In one embodiment of the pull-out guide 10, the center rail 13 is supported on the guide rail 12 by means of at least one guide rail rolling element 27. The guide rail rolling element 27 can be part of the guide rail synchronization element 20.It can be provided that the center rail 13 is supported on the guide rail 12 by means of several guide rail rolling elements 27. The guide rail rolling elements 27 can be part of the guide rail synchronization element 20.

[0049] In one embodiment of the drawer guide 10, the guide rail synchronization element 30 is arranged within a cross-sectional profile of the guide rail 14, as shown in Fig. 2. The guide rail synchronization element 30 therefore does not protrude beyond the guide rail 14. This allows for a compact arrangement of the rail assembly 11.

[0050] In one embodiment of the pull-out guide 10, the cross-sectional profile of the guide rail 14 is substantially rectangular, as shown in Fig. 2. Substantially rectangular can mean that the cross-sectional profile of the guide rail 14 is exactly rectangular or rectangular with rounded corners. The rounded corners can be produced by means of a bending process, wherein the guide rail 14 can be brought into the substantially rectangular shape by means of this bending process. The rounded corners can therefore have the minimum bending radii for bent sheets. For example, the bending radii can be less than or equal to one and a half times the sheet thickness, in particular less than or equal to the sheet thickness, wherein the sheet thickness refers to the guide rail 14.The cross-sectional profile of the guide rail 14 can be a U-profile, with two parallel ends 18 of the U-profile facing the sliding element 3 or a sliding element 3 to be mounted. A base 19 of the U-profile located between the parallel ends 18 can be arranged parallel to the mounting surface 17. The parallel ends 18 can, in particular, be arranged perpendicular to the mounting surface 17.

[0051] In one embodiment of the pull-out guide 10, a cross-sectional profile of the center rail 13 is essentially rectangular and has a vertical end 44 and a horizontal end 45. The second section 23 encompasses the vertical end 44. The vertical end 44 can be arranged perpendicular to the mounting surface 17. The horizontal end 45 can be arranged parallel to the mounting surface 17. Essentially rectangular can mean that the cross-sectional profile of the center rail 13 is exactly rectangular or rectangular with rounded corners. The rounded corners can be produced by means of a bending process, wherein the center rail 13 can be brought into the essentially rectangular shape by means of this bending process. The rounded corners can therefore have the minimum bending radii for bent sheets.For example, the bending radii can be less than or equal to one and a half times the sheet thickness, in particular less than or equal to the sheet thickness, wherein the sheet thickness refers to the center rail 13.

[0052] In one embodiment of the pull-out guide 10, the cross-sectional profile of the center rail 13 has an opening 46 between the vertical end 44 and the horizontal end 45. The guide rail 12 has a first horizontal section 47, a second horizontal section 48, and a vertical section 49. The vertical section 49 is arranged between the horizontal sections 47, 48 and guided through the opening 46 of the center rail 13. This results in a compact arrangement of the rail package 11. The horizontal sections 47, 48 can be arranged parallel to the mounting surface 17. The vertical section 46 can be arranged perpendicular to the mounting surface 17.

[0053] In one embodiment of the pull-out guide 10, the first horizontal section 47 is arranged within the cross-sectional profile of the center rail 13. The second horizontal section 48 is arranged offset below the first horizontal section 47. This results in an S-shaped profile of the guide rail 12, as shown, for example, in Fig. 2. It can be provided that the second horizontal section 48 merges into the mounting element 50, thus achieving the one-piece design of the guide rail 12 with the mounting element 50.

[0054] Fig. 3 shows a side view of the pull-out guide 10 of Fig. 2. The guide rail 14 is moved in the opening direction 6, and a closing direction 7 is opposite to the opening direction 6. The guide rail 14 is shown in dashed lines and is partially transparent, so that the elements otherwise concealed by the guide rail 14 (in particular the synchronization gear 40 and the guide rail synchronization element 30 with the guide rail rack 31) are visible in Fig. 3.

[0055] Fig. 4 shows a front view of a pull-out guide 10 which corresponds to the pull-out guide 10 in Figs. 2 and 3, unless differences are described below. In particular, all of the optional features explained in Figs. 2 and 3 can also be provided in the pull-out guide in Fig. 4. The mounting element 50 and the guide rail 12 are not designed as a single piece in this exemplary embodiment. The guide rail 12 is placed onto the mounting element 50. A connection between the guide rail 12 and the mounting element 50 can be made, for example, by welding and / or screwing. In this exemplary embodiment of the pull-out guide 10, the guide rail 12 also has an S-profile, similar to Fig. 2. The second horizontal section 48 is arranged directly below the guide rail rack 21 and can therefore form part of the support element 15.

[0056] By placing the guide rail 12 on the mounting element 50, for example, an identical rail assembly 11 can be used for both sides of the drawer element, with the mounting elements 50 of the two pull-out guides 10 being symmetrical to each other. Alternatively, a symmetrical arrangement of the rail assembly 11 can also be used.

[0057] Fig. 5 shows a front view of a pull-out guide 10 which corresponds to the pull-out guide 10 of Figs. 2 to 4, unless differences are described below. In particular, all of the optional features explained in Figs. 2 and 3 can also be provided in the pull-out guide of Fig. 5. The guide rail 12 and the mounting element 50 are again designed as a single piece, as in the embodiment of Figs. 2 and 3. The second horizontal section 48 is arranged below the first horizontal section 47. This results in a C-profile of the guide rail 12. In this embodiment of the pull-out guide, the support element 15 is also fastened to the rail support area 52. This also enables a simple construction of the pull-out guide 10. The support element 15 can be fastened to the rail support area 52, for example, by means of a welded connection and / or a screw connection.

[0058] Fig. 6 shows a cross-section of a pull-out guide 10 which corresponds to the pull-out guide 10 in Figs. 2 to 5, unless differences are described below. In particular, all of the optional features explained in Figs. 2 and 3 can also be provided in the pull-out guide in Fig. 6. The guide rail 12 is again placed on the mounting element 50, as in the embodiment in Fig. 4. The second horizontal section 48 is arranged below the first horizontal section 47, as already explained in connection with Fig. 5. This again results in a C-profile of the guide rail 12. In this embodiment too, an identical rail package 11 can be used for both sides of the drawer element, wherein the mounting elements 50 of the two pull-out guides 10 are symmetrical to one another. Alternatively, a symmetrical arrangement of the rail packages 11 can also be used. Fig.7 shows a cross-section of a pull-out guide 10 which corresponds to the pull-out guide 10 of FIGS. 2 to 6, unless differences are described below. In particular, all of the optional features explained in FIGS. 2 and 3 can also be provided in the pull-out guide of FIG. 7. The guide rail 12 is again placed on the mounting element 50, as in the embodiment of FIG. 6. The second horizontal section 48 is arranged below the first horizontal section 47, as already explained in connection with FIG. 6. This again results in a C-profile of the guide rail 12. In this embodiment too, an identical rail package 11 can be used for both sides of the drawer element, wherein the mounting elements 50 of the two pull-out guides 10 are symmetrical to one another. Alternatively, a symmetrical arrangement of the rail packages 11 can also be used.

[0059] In the exemplary embodiment of the pull-out guide 10 in Fig. 7, the guide rail synchronization element 20 has a support roller 28. The support roller 28 faces the support element 15. The support roller 28 can serve, in particular, to reduce friction between the support element 15 and the guide rail synchronization element 20 when a load is applied to the pull-out guide 10, thus enabling low-friction movement of the rails 12, 13, 14 even under high loads. In this exemplary embodiment, the support element 15 is designed as a one-piece extension of the mounting element 50. However, the support roller 28 can also be used in the previously described exemplary embodiments of the pull-out guide 10 in Figs. 2 to 6. The support roller 28 can in particular be arranged in the region of the base 24 of the second section 23.

[0060] Fig. 8 shows a cross-section of a pull-out guide 10 which corresponds to the pull-out guide 10 in Figs. 2 to 7, unless differences are described below. Here, the support rolling element 28 has been omitted again, although the support rolling element 28 can also be provided analogously to Fig. 7. The second horizontal section 48 is, as already explained in connection with Fig. 6, arranged below the first horizontal section 47. This again results in a C-profile of the guide rail 12. However, the second horizontal section 48 is folded over and then merges into the rail support area 52 with the support element 15, so that the mounting element 50 and guide rail 12 are again designed as a single piece. It can also be provided that the second horizontal section 48 of a guide rail 12 designed in an S-profile is folded over and merges into the rail support area 52.In all embodiments, the mounting element 50 can be guided over a length of the rail package 11. Alternatively, several shorter mounting elements 50 can be provided, which do not have to be guided over the entire length of the rail package 11. In this case, gaps can be arranged between the mounting elements 50.

[0061] In all embodiments, the guide rail rolling element 32 can be integrated into the center rail 13 and, if necessary, also act as a guide rail rolling element 27. The guide rail rolling element 32 can be integrated into the center rail 13 and, if necessary, also act as a guide rail rolling element 27. The guide rail rolling element 27 can be integrated into the center rail 13 and, if necessary, also act as a guide rail rolling element 32. The guide rail rolling elements 27 can be integrated into the center rail 13 and, if necessary, also act as a guide rail rolling element 32.

[0062] The pull-out guides explained in connection with Figs. 2 to 8 can each be arranged on a drawer element 3 analogous to Fig. 1. Such drawer elements 3 can be used in a piece of furniture

[0063] 1 can be arranged.

[0064]

[0065] 1 furniture

[0066] 2 furniture body

[0067] 3 thrust element

[0068] 4 drawers

[0069] 5 Drawer space

[0070] 6 Opening direction

[0071] 7 Closing direction

[0072] 10 Drawer guide

[0073] 11 Rail package

[0074] 12 guide rail

[0075] 13 Middle rail

[0076] 14 guide rail

[0077] 15 Support element

[0078] 16 Load direction

[0079] 17 Mounting surface

[0080] 18 parallel end

[0081] 19 Base

[0082] 20 Guide rail synchronization element

[0083] 21 Guide rail rack

[0084] 22 first section

[0085] 23 second section

[0086] 24 Base

[0087] 25 first leg

[0088] 26 second leg

[0089] 27 guide rail rolling elements

[0090] 28 support rolling elements

[0091] 30 guide rail synchronization element

[0092] 31 Track rack

[0093] 32 track rolling elements

[0094] 40 Synchronization gear

[0095] 44 vertical end

[0096] 45 horizontal end

[0097] 46 Opening

[0098] 47 first horizontal section second horizontal section vertical section mounting element mounting side rail support area angle

Claims

Claims 1. Pull-out guide (10) for a drawer element (3), in particular for a drawer (4), which has a guide rail (12) which can be mounted on a furniture body (2), a central rail (13) which is mounted displaceably relative to the guide rail (12), and a running rail (14) which is mounted displaceably relative to the guide rail (12) and the central rail (13), wherein the running rail (14) can be mounted on the drawer element (3), wherein the running rail (14) can be moved from a closed position into an open position in an opening direction and from the open position into the closed position in a closing direction (7) opposite to the opening direction (6), wherein the pull-out guide (10) further has a guide rail synchronization element (20) and a running rail synchronization element (30), wherein the guide rail synchronization element (20) is arranged on the Guide rail (12) is movable,wherein the guide rail synchronization element (30) is displaceable on the guide rail (14) relative to the opening direction (6) or closing direction (7), wherein the guide rail synchronization element (20) has a guide rail rack (21), wherein the guide rail synchronization element (30) has a guide rail rack (31), wherein a synchronization gear is rotatably mounted on the center rail (13), wherein the synchronization gear (40) meshes with the guide rail rack (31) and with the guide rail rack (21), wherein the guide rail synchronization element (30) is arranged at least partially between the guide rail (14) and the center rail (13), wherein the guide rail synchronization element (20) has a first section (22) and a second section (23), wherein the first section (22) is arranged between the guide rail (12) and the center rail (13),wherein the second section (23) encompasses the central rail (13), wherein the guide rail rack (21) is arranged in the second section (23) of the guide rail synchronization element (20), wherein a support element fixedly connected to the guide rail (12) is arranged below the second section.

2. Pull-out guide (10) according to claim 1, wherein the pull-out guide (10) is designed as an underfloor guide.

3. Pull-out guide (10) according to claim 1 or 2, wherein the second section (23) is U-shaped in cross-section, wherein the second section (23) has a base (24), a first leg (25) and a second leg (26), wherein the first leg (25) merges into the first section (22), wherein the guide rail rack (21) is part of the second leg (26), and wherein the support element (15) is arranged below the base (24).

4. Pull-out guide (10) according to one of claims 1 to 3, further comprising a mounting element (50), wherein the mounting element (50) has a mounting side (51) for mounting on a furniture body (2) and a rail support area (52) for fastening the guide rail (12), wherein the guide rail (12) is fastened to the rail support area (52).

5. Pull-out guide (10) according to claim 4, wherein the rail support region (52) and the support element (15) are designed as a single piece.

6. Pull-out guide (10) according to claim 4, wherein the support element (15) is attached to the rail support area (52).

7. Pull-out guide (10) according to one of claims 1 to 6, wherein the synchronization gear (40) is arranged between the center rail (13) and the running rail (14).

8. Pull-out guide (10) according to one of claims 1 to 7, wherein the guide rail (14) is supported on the center rail (13) by means of at least one guide rail rolling element (32).

9. Pull-out guide (10) according to one of claims 1 to 8, wherein the central rail (13) is supported on the guide rail (12) by means of at least one guide rail rolling element (27).

10. Pull-out guide (10) according to one of claims 1 to 9, wherein the guide rail synchronization element (20) has a support rolling body (28), wherein the support rolling body (28) faces the support element (15).

11. Pull-out guide (10) according to one of claims 1 to 10, wherein the guide rail synchronization element (30) is arranged within a cross-sectional profile of the guide rail (14).

12. Pull-out guide (10) according to claim 11, wherein the cross-sectional profile of the guide rail (14) is substantially rectangular.

13. Pull-out guide (10) according to one of claims 1 to 12, wherein a cross-sectional profile of the center rail (13) is substantially rectangular and has a vertical end (44) and a horizontal end (45), wherein the second portion (23) encompasses the vertical end (44).

14. Pull-out guide (10) according to claim 13, wherein the cross-sectional profile of the central rail (13) has an opening (46) between the vertical end (44) and the horizontal end (45), wherein the guide rail (12) has a first horizontal section (47), a second horizontal section (48) and a vertical section (49), wherein the vertical section (49) is arranged between the horizontal sections (47, 48) and is guided through the opening (46) of the central rail (13).

15. Pull-out guide (10) according to claim 14, wherein the first horizontal section (47) is arranged within the cross-sectional profile of the center rail (13) and the second horizontal section (48) is arranged below or offset below the first horizontal section (47).

16. Drawer element (3) with a pull-out guide (10) according to one of claims 1 to 15.

17. Furniture (1) with a drawer element (3) according to claim 16.

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