EP3403529B1 - Guidage d'extraction - Google Patents

Guidage d'extraction Download PDF

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Publication number
EP3403529B1
EP3403529B1 EP18163322.3A EP18163322A EP3403529B1 EP 3403529 B1 EP3403529 B1 EP 3403529B1 EP 18163322 A EP18163322 A EP 18163322A EP 3403529 B1 EP3403529 B1 EP 3403529B1
Authority
EP
European Patent Office
Prior art keywords
pull
partial
rail
roller
rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18163322.3A
Other languages
German (de)
English (en)
Other versions
EP3403529A1 (fr
Inventor
Wolfgang Müller
Karl Raid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fulterer AG and Co KG
Original Assignee
Fulterer AG and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fulterer AG and Co KG filed Critical Fulterer AG and Co KG
Priority to PL18163322T priority Critical patent/PL3403529T3/pl
Publication of EP3403529A1 publication Critical patent/EP3403529A1/fr
Application granted granted Critical
Publication of EP3403529B1 publication Critical patent/EP3403529B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/437—Rollers for slides or guides
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/49—Sliding drawers; Slides or guides therefor with double extensible guides or parts
    • A47B88/493—Sliding drawers; Slides or guides therefor with double extensible guides or parts with rollers, ball bearings, wheels, or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/42—Vertically-oriented drawers, i.e. drawers where the height exceeds the width
    • A47B2088/421—Vertically-oriented drawers, i.e. drawers where the height exceeds the width the bottom, cabinet side slide having a U-shape section opening upwards
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/0002—Guide construction for drawers
    • A47B2210/0008—Guide construction for drawers having a roller on an intermediary slide rail between the cabinet rail and the drawer rail
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/0002—Guide construction for drawers
    • A47B2210/001—Guide construction for drawers having a roller on the intermediate drawer rail, between the upper and lower rail
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/0002—Guide construction for drawers
    • A47B2210/0029—Guide bearing means
    • A47B2210/0037—Rollers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/0002—Guide construction for drawers
    • A47B2210/0029—Guide bearing means
    • A47B2210/0037—Rollers
    • A47B2210/004—Rollers cages therefor, e.g. for telescopic slides
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/0002—Guide construction for drawers
    • A47B2210/0029—Guide bearing means
    • A47B2210/0043—Wheels
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/0002—Guide construction for drawers
    • A47B2210/0051—Guide position
    • A47B2210/0056—Guide located at the bottom of the drawer
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/0091—Drawer movement damping
    • A47B2210/0097—Ball or roller cage incorporating damping means

Definitions

  • the invention relates to a pull-out guide for pulling out a pull-out furniture part from a furniture body with guide rails comprising a body rail for mounting on the furniture body, a pull-out rail for mounting on the pull-out furniture part and a middle rail arranged between the body rail and the pull-out rail and with rollers for displaceably supporting the guide rails , wherein at least one of the rollers has at least a first and a second partial roller with at least substantially the same diameter, the running surfaces of which lie next to one another and which can be rotated relative to one another, the partial rollers rolling off the same opposite raceways from two of the guide rails.
  • Pull-out guides for pulling out a pull-out furniture part, for example a drawer, from a furniture body are known in different embodiments.
  • Single pull-out guides consist of a body rail to be mounted on the furniture body and a pull-out rail to be mounted on the pull-out furniture part.
  • Full or over pull-outs also have a central rail arranged between the carcass rail and the pull-out rail.
  • differential pull-out guides which have a high running culture, all running rollers are usually arranged on the central rail.
  • Such differential pull-out guides are, for example, from the AT 391 603 B . EP 2 074 909 A1 . CH 679 735 A5 and EP 1 350 444 A1 known.
  • Underbody pull-out guides are arranged on the underside of the pull-out furniture part.
  • underbody pull-out guides are known as pull-out guides for tall cabinets.
  • Such a moment leads to a misalignment of the roller due to a deformation between the roller and the axle pin supporting the roller and / or between the connection between the axle pin and the rail.
  • Such misalignment is increasingly built up during the rotation of the roller until the roller suddenly jumps back into a position essentially corresponding to the starting position by exceeding the transferable forces between roller and axle bolt or between axle bolt and rail.
  • This causes a roll jerk, which is transmitted further via the rails and can lead to chattering noises or, particularly in the case of resonance effects, to visible tremors, for example of the front panel.
  • the effect described is particularly pronounced when the coefficient of static friction of the roller relative to the raceway or raceways is higher than the coefficient of sliding friction. This is the case with most roll materials, especially when using plastics such as POM, PU, PA etc.
  • From the EP 2 042 056 A1 is a pull-out guide, in which casters of different sizes arranged side by side on a common axis are provided.
  • One of the rollers runs along a track of a horizontal web of the guide rail.
  • the roller lying next to it runs along the track of a web of the guide rail at an angle to it.
  • a side guide for the pull-out guide is thereby formed without jamming effects or significant disturbing noises occurring.
  • the roller rolling on the track of the inclined web of the guide rail has a tread which is rounded in cross section. This essentially results in a point-like contact of the roller with this inclined web, while the roller rolling on the horizontal web forms a line contact with it.
  • a pull-out guide of the type mentioned is based on the US 2003/0197452 A1 out.
  • Carriages are used for the mutual displacement of two guide rails.
  • One of these carriages has juxtaposed rollers with the same diameters that roll between opposite raceways of the guide rails.
  • the rollers lying side by side are arranged at an axial distance in different openings in the carriage.
  • the object of the invention is to provide an advantageous pull-out guide of the type mentioned at the outset, which has a high running culture. According to the invention, this is achieved by a pull-out guide with the features of claim 1.
  • the partial rollers of the differential roller roll between the same, opposite raceways of the body rail and the pull-out rail.
  • the tread of a respective partial roller is narrower than the tread of an "undivided" roller.
  • the difference in the rolling circumference between the two edge regions of the running surface of a respective partial roller is smaller.
  • the difference in the rolling circumference is essentially proportional to the width of the tread. Rolling jerking when the pull-out guide is actuated can thus be avoided in a surprisingly simple manner, or at least substantially reduced.
  • the previously used wording “at least essentially the same diameter” is intended to express that there may be minimal differences in diameter of less than 5%, preferably less than 3%, for example due to tolerance or to the same despite a slight inclination of the raceway (due to the weight load) To achieve load capacities of the rollers.
  • the track or the opposite tracks, along which the partial rollers of a roller roll, can therefore advantageously be flat.
  • the running surfaces of the first and second partial rollers are preferably at least substantially cylindrical in shape.
  • the expression “at least substantially cylindrical jacket-shaped” is intended to include slight deviations from the cylindrical jacket shape, for example slightly oblique configurations in cross section (“conical configurations”), in particular with bevels of less than 3 °. Such tapered training will be used to form minimal draft angles during injection molding.
  • the partial rollers are arranged on a common axle pin.
  • this is at least essentially fixedly connected to one of the guide rails, that is to say cannot be displaced in relation to the guide rail in the longitudinal direction of the guide rail.
  • the common axle pin can be held non-rotatably on the central rail, the partial rollers being rotatably mounted with respect to the axle pin and having a play in the vertical direction with respect to the axle pin fixed on the central rail, on which they are arranged.
  • a vertical play of the first and second partial roller with respect to the center rail can also be achieved in that the axle bolt is connected to the center rail so as to be displaceable in the vertical direction.
  • the first partial roller could be rotatably arranged on the axle bolt and the second partial roller could be arranged non-rotatably on the axle bolt or could be formed in one piece with the axle bolt.
  • the axle pin is rotatably supported relative to one of the guide rails.
  • the first and second sub-rollers can have side faces that lie directly against one another.
  • a sliding position For example, by designing the roller as a two-component plastic part, or a sliding coating, for example in the form of a lubricating varnish, on at least one of the two abutting side surfaces.
  • an intermediate layer made of a material different from the material of the partial rolls can be arranged between the first and the second partial roll.
  • Such an intermediate layer can be formed by a solid, for example in the form of a ring or a disk, made of a suitable lubricious material, for example made of plastic, such as thermoplastic, paper or metal.
  • An intermediate layer between the first and second partial roller can also be formed by a lubricant, such as oil, grease or a solid lubricant.
  • the treads of the first and second sub-rollers are at a distance related to the axial direction of the sub-rollers, which is advantageously less than the width of the tread of a respective sub-roller, preferably less than half the width of the tread of a respective sub-roller, particularly preferably less than a quarter is the width of the tread of a respective sub-roll.
  • the first and second partial roles are advantageously at least essentially concentric to one another.
  • FIGS 1 to 15 A first embodiment of a pull-out guide according to the invention is shown in FIGS 1 to 15 shown.
  • the pull-out guide is designed in the form of a differential pull-out.
  • the pull-out guide is used to pull out a pull-out furniture part 1 from a furniture body 2 in a pull-out direction 50.
  • the pull-out furniture part 1 and the furniture body 2 are only in Fig. 3 indicated by dashed lines.
  • the pull-out furniture part 1 can be, for example, a tall cabinet frame.
  • the pull-out guide can thus be called a tall cabinet pull-out guide.
  • the pull-out guide comprises only a single set of rails lying one inside the other. Since the pull-out guide is arranged below the pull-out furniture part 1, the pull-out guide can also be referred to as an underbody pull-out guide.
  • the pull-out guide could also have two sets of nested rails formed in mirror image, which are arranged on both sides of the pull-out furniture part between the respective side cheek of the pull-out furniture part and the furniture body.
  • Underbody pull-out guides can also have more than one set of rails lying one inside the other, which are of identical or mirror-image design and are arranged at a distance from one another below the pull-out furniture part. As in the exemplary embodiment, these rail sets can rest on the floor of the furniture body or be attached to side walls of the furniture body.
  • Extendable furniture parts can also be designed in the form of drawers, boxes or trays, for example.
  • the pull-out guide designed as a differential pull-out comprises a body rail 3 for attachment to the furniture body 2, a pull-out rail 5 for attachment to the pull-out furniture part 1 and a middle rail 4 arranged between the body rail 3 and pull-out rail 5.
  • rollers are used in the exemplary embodiment, which are connected to one of the rails via axle bolts.
  • all rollers are rotatably mounted on the central rail 4, as is usual with differential pull-outs.
  • the carcass rail 3 has a lower horizontal web 6 and vertical webs 7 projecting upwards from this on both sides (based on an end view).
  • the vertical webs 7 are provided in the region of their upper ends at least over part of their length with flanges directed towards one another, as a result of which upper horizontal webs 8 are formed. These form raceways for track rollers Pull-out.
  • the center rail 4 has spaced-apart (in relation to an end view) side cheeks 9, which are connected to one another via bolts 10.
  • the connection could also be made in a different way, for example by means of webs made of sheet metal running between the side cheeks 9. Rollers are rotatably mounted on the side cheeks 9, as explained in more detail below.
  • the side walls can be provided with gradations and / or flanges. In the exemplary embodiment, flanging is provided at the upper end.
  • the pull-out rail 5 has horizontal walkways 11. These stand out on both sides (based on an end view) and form tracks for rollers.
  • the two catwalks 11 are formed by folded sections of the sheet forming the pull-out rail 5.
  • the catwalks 11 are connected to one another by a connecting catwalk 12 and side catwalks 13 project upward from the catwalks 11.
  • the pull-out rail 5 is formed by a bent sheet metal profile.
  • the pull-out rail could also be formed by a cast profile or extruded profile. This also applies to the body rail 3 and middle rail 4.
  • a front roller 14 is rotatably mounted in the area of the front end of a respective side cheek 9 of the center rail 4 with respect to the pull-out direction 50. This interacts with a downward running track of the pull-out rail 5, which in the exemplary embodiment is formed by the underside of the assigned catwalk 11.
  • the front roller 14 supports the pull-out rail 5 in the extended state of the pull-out guide against tipping downwards.
  • a rear roller 15 is rotatably mounted thereon. This interacts with a downward running surface of the body rail 3. In the exemplary embodiment, this is formed by the underside of the assigned upper horizontal web 8 of the carcass rail 3. The rear roller 15 supports this rear end of the middle rail 4 in the extended state of the pull-out guide against pivoting upwards.
  • roller 16 which has a first and a second partial roller 16a, 16b, which are arranged one behind the other in relation to the axial direction, that is to say have treads lying next to one another .
  • the roller 16 is a load-transmitting roller, via which a load is transferred from the pull-out rail 5 directly to the body rail 3. This therefore also applies to the first and second partial rolls 16a, 16b.
  • the roller 16 has a play in the vertical direction with respect to the central rail, i.e. the partial rollers 16a, 16b have play in the vertical direction with respect to the central rail.
  • An axle pin 18, on which the first and second partial rollers 16a, 16b are rotatably used, is used for the rotatable mounting of the first and second partial rollers 16a, 16b.
  • the axle pin 18 is expediently held non-rotatably with respect to the center rail 4.
  • the first and second partial rollers 16, 16b are arranged on the axle pin 18 with play relative to the latter.
  • the play of the first and second partial rollers 16a, 16b in the vertical direction with respect to the center rail 4 is preferably more than 0.5 mm. Larger values of this game are also possible, for example of more than 1 mm.
  • the partial rollers 16a, 16b roll between a flat downward running path of the pull-out rail 5 and a flat upward running path the body rail 3.
  • the downward running path of the pull-out rail 5 is formed in the exemplary embodiment by the underside of the respectively assigned catwalk 11.
  • the upward running track of the carcass rail 3 is formed in the exemplary embodiment by the lower horizontal web 6 of the carcass rail 3.
  • the first and second sub-rollers 16a, 16b thus run between planar raceways which lie opposite and common to both sub-rollers 16a, 16b, that is to say on the one hand on an upward, on the other hand on a downward raceway.
  • a plane track common to both partial rolls 16a, 16b means here that the track is formed by the flat surface of a web of the respective rail on which the first and second partial rolls 16a, 16b roll alongside one another.
  • a pressure roller 21 is rotatably mounted on a respective side cheek 9 in the region above the first and second partial rollers 16a, 16b. If, for example, one considers the extended state of the pull-out guide, the weight of the drawer acts on the front casters 14 via the pull-out rail 5, whereby the central rail 4 experiences a torque about an imaginary axis which runs through the rear casters 15.
  • the respective pressure roller 21 is pressed against the top of the respective catwalk 11, which is supported downward by the respective first and second partial rollers 16a, 16b, which are supported on the body rail 3 and have play in the vertical direction with respect to the central rail 4.
  • the catwalks 11 are thus virtually clamped between the partial rollers 16a, 16b and the pressure rollers 21. This ensures that the rails run synchronously.
  • an auxiliary roller 22 is preferably rotatably mounted on a respective side cheek 9 of the center rail 4 in a region of the center rail 4 that lies between the first and second rollers 16, 17 and the rear roller 15 with respect to the pull-out direction 50.
  • This auxiliary roller 22 serves to support the rear end of the pull-out rail 5 and the rear end of the middle rail 4 against tipping downwards in the retracted or only slightly pulled-out state of the pull-out guide when the focus of the load distribution of the pull-out furniture part 1 is in a rear part of the pull-out rail 5 lies.
  • auxiliary rollers 22 sliding parts could also be provided, for example.
  • a support of the rear end of the center rail against a downward tilt could also be brought about, for example, by the rear rollers 15.
  • the rear end of the pull-out rail 5 could be supported against tilting downwards, for example, by auxiliary rollers or sliding parts, which are arranged in the region between the pressure roller 21 and the front roller 14 and interact with the top of the respective lateral extension 11.
  • the load-transmitting first and second partial rollers 16a, 16b which are at least largely immovable with respect to the pull-out direction 50 (apart from a play which is advantageously as low as possible) relative to the central rail 4 are and roll between the pull-out rail 5 and the carcass rail 3, which causes the differential running of the middle rail 4, in which the middle rail 4 covers half the distance of the pull-out rail 5.
  • first and second partial rollers 16a, 16b Due to different rolling circumferences of the first and second partial rollers 16a, 16b, which are caused by the deviation of at least one raceway from the position parallel to the axis, there are slight relative rotations between the first and second partial rollers 16a, when the first and second partial rollers 16a, 16b are rolled. 16b.
  • Advantageous force flow profiles can be achieved by suitable shaping of the partial rollers 16a, 16b.
  • the technical producibility can also be favored. In this way, casters produced by injection molding can be reduced to a smaller wall thickness, as a result of which the cycle time during production can be reduced and the risk of vacuoles being formed can be reduced.
  • the first partial roller 16a can have an undercut 17 for receiving the head of the axle pin 18.
  • the second sub-roller 16b can on its side surface facing the side cheek 9, e.g. following their central through opening, have an annular collar 24 to reduce the contact surface on the side cheek 9.
  • Modified designs of the first and / or second partial roll 16a, 16b are conceivable and possible, e.g. with spokes etc.
  • an intermediate layer in the form of a slide ring 23 is arranged between the first and second partial rollers 16a, 16b.
  • a slide ring 23 can be made of steel.
  • a groove 25, 26 is formed in each of which the slide ring 23 engages.
  • the partial rollers 16a, 16b are held at least substantially concentrically with one another by the sliding ring 23 engaging in the grooves 25, 26.
  • a respective side surface 29, 30 could also have a projection lying radially inside or outside of the slide ring 23, by means of which the slide ring 23 is held in a form-fitting manner in the radial direction.
  • the bottom of a respective groove 25, 26 has a convex curvature.
  • the surface of the slide ring bearing against the bottom of the respective groove could also have a convex curvature. This facilitates mutual (slight) tilting of the first and the second partial rollers 16a, 16b, as a result of which they can adapt more easily to tolerances and / or bending of the raceways with which the partial rollers 16a, 16b interact.
  • the longitudinal central axes of the partial rollers 16a, 16b can then be slightly inclined towards one another, preferably at an angle of less than 5 °.
  • the mutually facing side surfaces 29, 30 of the first and second rollers 16, 17 thus rest against this intermediate layer formed by a solid body (in the region of the bottom of the respective groove 25, 26).
  • the material or a coating of the solid body is selected in such a way that there is low friction compared to the first and second partial rollers 16a, 16b.
  • the running surfaces 27, 28 of the partial rollers 16a, 16b are thus spaced apart from one another by the gap s, preferably at least essentially on a common cylinder jacket (apart from the aforementioned possible smaller tilting and apart from the play of the slide ring 23 in the grooves 25, 26) ,
  • the distance a measured in the axial direction between the two running surfaces 27, 28 is smaller in the exemplary embodiment than one fifth of the width b1, b2 of the running surface 27, 28 of a respective partial roller 16a, 16b measured in the axial direction.
  • a pull-out guide according to the invention could also be designed in a different way than described above.
  • it can be a Acting differential pull-out guide which can be attached between the respective side cheek of the pull-out furniture part and a side wall of the furniture body.
  • the middle rail could then have only a single side cheek, the carcass rail only one vertical web and only one upper horizontal web, and the pull-out rail only one runway.
  • rollers than differential rollers could also be “divided” in the manner described, so that they have at least two partial rollers with at least substantially the same diameter, which can be rotated relative to one another and have axially adjacent running surfaces.
  • the partial rollers could then also roll on one side only on a flat track of a single rail common to both partial rollers.
  • Caster rollers of a pull-out guide assigned to different functions can also be configured in the manner described, for example the at least one differential roller and the at least one pressure roller.
  • At least individual raceways and axes of rotation of rollers of a pull-out guide according to the invention can also be designed inclined to the horizontal.
  • first and / or second partial roller 16a, 16b could be provided in the region of its outer circumference with a circumferential groove in which a protruding soft component is arranged.
  • a soft component could also be arranged on the edge of one of the partial rollers 16a, 16b, which faces the other of these partial rollers 16a, 16b.
  • the first and / or second partial roller 16a, 16b could also be rotatably mounted on an axle bolt via a roller bearing.
  • the partial rolls can in particular be formed from a plastic material, e.g. POM, PU, PA, etc., whereby they can be made of the same or different materials.
  • a plastic material e.g. POM, PU, PA, etc.
  • a second embodiment of the invention is described below with reference to the 16 to 20 explained. Apart from the differences described below, the design corresponds to that of the first exemplary embodiment and the description of the first exemplary embodiment and the modifications thereto can be used accordingly.
  • the first and second partial rollers 16a, 16b directly abut one another with their mutually facing side surfaces 29, 30.
  • the mutual friction could be reduced, for example, by at least one ring-shaped elevation on at least one of the side surfaces 29, 30 facing each other.
  • at least one of the side surfaces 29, 30 could also be provided with a sliding coating, for example a sliding lacquer.
  • At least one of the abutting side surfaces 29, 30 could also be designed, at least over part of its radial extent, as a possibly protruding sliding layer with which a base body of the respective partial roller is provided.
  • Such partial rolls could be produced, for example, in the 2-component injection molding process.
  • a lubricant could be provided between the two mutually facing side surfaces of the first and second partial rollers 16a, 16b, via which they can slide against one another.
  • a lubricant would also form an intermediate layer between the first and the second partial rollers 16a, 16b made of a different material than these two partial rollers 16a, 16b.
  • Such lubricants can be used, for example, in the form of an oil, grease or solid lubricant.
  • the first partial roller 16a has a sleeve-shaped extension 31 projecting in the axial direction, on which the second partial roller 16b is arranged.
  • the sleeve-shaped extension 31 has a play with the axle pin 18 in order to provide the play of the partial rolls 16a, 16b in the vertical direction.
  • the axial play of the partial roller 16b relative to the partial roller 16a can be kept low, as a result of which the partial rollers 16a, 16b are kept in a concentric orientation.
  • a third embodiment of the invention is in the 21 to 25 shown. Apart from the differences explained below, the design corresponds to that of the first exemplary embodiment and the description of the first exemplary embodiment and the possible modifications described can be used in this respect.
  • the partial rollers with their side surfaces 29, 30 facing one another, again lie directly against one another.
  • the two partial rollers are formed on their central passage openings with elevations formed by annular collars 32, 33, in the area of which the side surfaces 29, 30 abut one another.
  • Such a collar 32, 33 could also be provided only on one of the side surfaces 29, 30.
  • the bundles of rings 32, 33 could also be omitted.
  • the two partial rollers 16a, 16b are each arranged with play on the axle pin 18. As a result, they have a corresponding mutual play in their axial alignment. In operation, when the partial rollers 16a, 16b roll between opposing raceways, apart from tolerances and bending of the raceways, this results in a causes at least substantially concentric alignment of the partial rollers 16a, 16b.
  • the first and second partial rollers 16, 17 could also be mounted in such a way that they are kept at a mutual distance, for example by a collar of the axle bolt located between the first and second partial rollers 16, 17.
  • the distance between the running surfaces of the first and second partial rollers 16, 17 is in this case preferably less than the axial width of the running surface of a respective partial roller, particularly preferably less than half the axial width of the running surface of a respective partial roller.
  • an axle bolt for the first and second partial rollers 16, 17 could also be rotatably mounted with respect to the central rail.
  • One of the partial rollers 16, 17 could then be mounted non-rotatably on this axle bolt or could also be formed in one piece with this axle bolt.
  • the at least one further partial roller would then be rotatably supported on the axle bolt. Since such rotatability only has to be given slightly and does not have to be very smooth, such a rotatable mounting on the axle pin could also be made possible, for example, by a correspondingly light sliding fit.

Landscapes

  • Drawers Of Furniture (AREA)

Claims (12)

  1. Coulisse d'extraction servant à extraire une partie de meuble (1) pouvant être extraite hors d'un corps de meuble (2) avec des rails de guidage (3, 4, 5) comprenant un rail de corps (3) destiné à être monté au niveau du corps de meuble (2), un rail d'extraction (5) destiné à être monté au niveau de la partie de meuble pouvant être extraite et un rail central (4) disposé entre le rail de corps (3) et le rail d'extraction (5) et avec des galets de roulement (14, 15, 16, 17, 21, 22) servant à supporter de manière à pouvoir coulisser les rails de guidage, dans laquelle au moins un des galets de roulement (16) présente au moins un premier et un deuxième galet partiel (16a, 16b) avec au moins un diamètre sensiblement identique, dont les surfaces de roulement (27, 28) se situent côte à côte et qui peuvent être vrillées les unes à l'encontre des autres, dans laquelle les galets partiels (16a, 16b) roulent entre les pistes de roulement identiques se faisant face depuis deux des rails de guidage (3, 5), caractérisée en ce que le premier et le deuxième galet partiel (16a, 16b) sont des parties d'un galet différentiel à transmission de charge, dans laquelle les galets partiels (16a, 16b) roulent entre le rail de corps (3) et le rail d'extraction (5) et sont supportés avec un jeu dans une direction verticale en vis-à-vis du rail central (4).
  2. Coulisse d'extraction selon la revendication 1, caractérisée en ce que le premier et le deuxième galet partiel (16a, 16b) présentent au moins des surfaces de roulement (27, 28) sensiblement en forme d'enveloppe de cylindre.
  3. Coulisse d'extraction selon la revendication 1 ou 2, caractérisée en ce que les pistes de roulement se faisant face des deux rails de guidage (3, 5), entre lesquels le premier et le deuxième galet partiel (16a, 16b) roulent, sont réalisées de manière plane.
  4. Coulisse d'extraction selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le premier et le deuxième galet partiel (16a, 16b) sont disposés sur un boulon pivot (18) commun.
  5. Coulisse d'extraction selon la revendication 4, caractérisée en ce que le boulon pivot (18) est maintenu sans pouvoir vriller et les galets partiels (16a, 16b) peuvent vriller par rapport au boulon pivot (18).
  6. Coulisse d'extraction selon l'une quelconque des revendications 1 à 5, caractérisée en ce que les surfaces latérales tournées les unes vers les autres du premier et du deuxième galet partiel (16a, 16b) reposent directement les unes au niveau des autres.
  7. Coulisse d'extraction selon l'une quelconque des revendications 1 à 5, caractérisée en ce qu'une couche intermédiaire composée d'un matériau différent par rapport au premier et au deuxième galet partiel (16a, 16b) est disposée entre le premier et le deuxième galet partiel (16a, 16b), et le premier et le deuxième galet partiel (16a, 16b) reposent respectivement au niveau de la couche intermédiaire.
  8. Coulisse d'extraction selon la revendication 7, caractérisée en ce que la couche intermédiaire est une bague de glissement (23) qui est maintenue par complémentarité de forme dans une direction radiale par le premier et le deuxième galet partiel (16a, 16b).
  9. Coulisse d'extraction selon la revendication 8, caractérisée en ce que la bague de glissement (23) vient en prise avec des rainures (25, 26) au niveau des surfaces latérales tournées les unes vers les autres du premier et du deuxième galet partiel (16a, 16b), dans laquelle le fond de la rainure (25, 26) respective et/ou la face supérieure, reposant au niveau du fond de la rainure (25, 26) respective, de la bague de glissement (23) présentent un bombement convexe.
  10. Coulisse d'extraction selon l'une quelconque des revendications 1 à 9, caractérisée en ce que le premier galet partiel (16a) présente un prolongement (31) dépassant de manière axiale, sur lequel le deuxième galet partiel (16b) est disposé de manière à pouvoir tourner.
  11. Coulisse d'extraction selon l'une quelconque des revendications 1 à 10, caractérisée en ce que la distance axiale entre les surfaces de roulement (27, 28) des galets partiels (16a, 16b) situés côte à côte est inférieure à la largeur axiale de la surface de roulement (27, 28) respective.
  12. Coulisse d'extraction selon la revendication 11, caractérisée en ce que la distance axiale entre les surfaces de roulement (27, 28) des galets partiels (16a, 16b) situés côte à côte est inférieure à la moitié de la largeur axiale de la surface de roulement (27, 28) respective.
EP18163322.3A 2017-05-17 2018-03-22 Guidage d'extraction Active EP3403529B1 (fr)

Priority Applications (1)

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PL18163322T PL3403529T3 (pl) 2017-05-17 2018-03-22 Prowadnica wysuwana

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AT2072017 2017-05-17

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EP3403529B1 true EP3403529B1 (fr) 2020-01-08

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ES (1) ES2777831T3 (fr)
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CN111920208A (zh) * 2020-08-19 2020-11-13 广州市唯诺家居五金有限公司 一种直拉式高升储物拉篮

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CN111895716A (zh) * 2020-07-17 2020-11-06 海信容声(广东)冰箱有限公司 冰箱及滚轮组件
CN112586914A (zh) * 2020-12-11 2021-04-02 嘉兴奥飞新材料科技有限公司 新型滑轮导轨
CN112998457A (zh) * 2021-03-18 2021-06-22 广东库博精密科技有限公司 一种适用于高深拉篮的高承重三轨式导轨结构

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FR2503554A3 (fr) * 1981-04-10 1982-10-15 Atal Glissiere extensible double pour tiroir
DE3936754A1 (de) * 1989-11-04 1991-05-08 Grass Ag Schubladenfuehrung mit auszugsschiene
US6682160B2 (en) * 2002-04-17 2004-01-27 Nan Juen International Co., Ltd. Drawer sliding structure
DE202007013640U1 (de) * 2007-09-28 2009-02-12 Paul Hettich Gmbh & Co. Kg Möbelauszugsführung

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CN111920208A (zh) * 2020-08-19 2020-11-13 广州市唯诺家居五金有限公司 一种直拉式高升储物拉篮

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PL3403529T3 (pl) 2020-06-29
ES2777831T3 (es) 2020-08-06

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