EP4687586A1 - Glissière de tiroir - Google Patents

Glissière de tiroir

Info

Publication number
EP4687586A1
EP4687586A1 EP24725446.9A EP24725446A EP4687586A1 EP 4687586 A1 EP4687586 A1 EP 4687586A1 EP 24725446 A EP24725446 A EP 24725446A EP 4687586 A1 EP4687586 A1 EP 4687586A1
Authority
EP
European Patent Office
Prior art keywords
pull
rail
roller
differential
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.)
Pending
Application number
EP24725446.9A
Other languages
German (de)
English (en)
Inventor
Patrick Fitz-Prock
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
Publication of EP4687586A1 publication Critical patent/EP4687586A1/fr
Pending legal-status Critical Current

Links

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
    • 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
    • A47B2210/0043—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
    • A47B2210/0064—Guide sequencing or synchronisation
    • A47B2210/007—Three slide synchronisation
    • 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
    • A47B88/44—Sequencing or synchronisation of drawer slides or functional units
    • A47B88/447—Simultaneous movement of rails within drawer slides, i.e. with a coordination of movement with all rail elements moving at the same time
    • 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

Definitions

  • the present invention relates to a differential pull-out guide for pull-out furniture parts, which has a body rail that can be attached to a furniture body, a pull-out rail that can be attached to a pull-out furniture part, and a middle rail between the two.
  • Each rail has a front end, a rear end, a main surface, and one or more secondary surfaces arranged on this, which are arranged at an angle to the respective main surface.
  • the body rail and pull-out rail each have one or more tracks on which rollers roll when in use.
  • the rollers are preferably all arranged on the middle rail as upper and lower rollers.
  • the rollers have upper and lower contact points for associated tracks, whereby a contact point is understood to be the area of the roller that contacts a track. Accordingly, when in use, when a roller rotates, all areas of a roller circumference become contact points as soon as and as long as they contact the associated track.
  • the pull-out rail has a secondary surface on which an upper and a lower track are arranged.
  • the upper track is contacted by the lower contact points of the upper wheels of the middle rail.
  • the lower track is contacted by the upper contact points of the lower rollers of the middle rail.
  • the pull-out rail runs between the upper and lower rollers of the middle rail and is guided by them.
  • the body rail has an upper side surface with an upper
  • raceway and a lower secondary surface with a lower raceway.
  • the upper rollers of the middle rail run with their upper contact points
  • the lower rollers of the middle rail run with their lower contact points.
  • the rollers are used to move the differential pull-out guide from a closed position to an open position along a pull-out path in a pull-out direction.
  • the closed position is when the differential pull-out guide is completely pushed together, the open position when it is completely pulled apart.
  • the rollers act between the rails and roll on the aforementioned tracks of the rails, so that the latter can change their relative positions to one another.
  • the rollers are all arranged so that they can rotate on the central rail.
  • the central rail also has a differential roller, the function of which is explained below.
  • the central rail can have side guide rollers that provide lateral guidance for the pull-out rail and whose axis of rotation runs parallel to the main surface of the central rail. This means that a side guide roller is tilted by around 90° to a roller, or in other words, oriented orthogonally to it.
  • a stop element on the cabinet rail limits the extension path by a stop surface on the middle rail running against the stop element on the cabinet rail. A similar limit is also found when pushing the rails together to form a closed position.
  • the middle rail moves synchronously with the pull-out rail, covering half the distance of the pull-out rail.
  • the middle rail has a load-transferring differential roller that rolls between the tracks of the pull-out rail and the body rail.
  • This differential roller can have a variable axis position relative to the middle rail.
  • the pull-out rail runs between the differential roller and a roller arranged above it. If the end position of the pull-out rail is such that its end is still between the differential roller and the roller assigned to it, this refers to a normal extension (also called full extension). If the end position of the pull-out rail is beyond this position, this refers to an over-extension.
  • the middle rail is usually shorter than the carcass rail and shorter than the pull-out rail.
  • Pull-out guides with self-retracting devices are known, in which the pull-out rail is automatically retracted over a final section of the insertion path. These self-retracting devices are often integrated into the pull-out guide, as disclosed, for example, in WO 2008/119091 A1.
  • the present invention therefore has the object of providing an improved differential extension guide in which these disadvantages do not occur.
  • a lateral guide roller of the central rail is arranged in the pull-out path on the central rail in such a way that in the open position it touches a rear end region of the pull-out rail, at least in the position of use.
  • the lateral contact on the main surface of the pull-out rail made possible in this way means that in the area of the very last section of the pull-out path - the over-extension - it cannot contact the middle rail to form a frictional connection, neither in the extension direction nor in the insertion direction.
  • rolling friction occurs on the lateral guide roller instead of the frictional connection.
  • the pull-out rail according to the invention is never fixed in its position relative to the middle rail during insertion: Coming from the over-extension position, it always reaches the position of the normal extension without the middle rail moving along with it. This movement only begins in the position of the normal extension when the rear end of the pull-out rail is located between the differential roller and the roller assigned to it.
  • the side guide rollers press the pull-out rails against the other, opposite pull-out rail.
  • the pull-out rail thus has three contact points with the middle rail, which is very advantageous. These three contact points are formed by the contact of an upper and a lower roller of the middle rail with the respective associated tracks of the pull-out rail and by the contact of the side guide roller according to the invention with a main surface of the pull-out rail orthogonal to the first two rollers mentioned and thus laterally in an end region of the pull-out rail.
  • the three contact points are thus both axially spaced from one another and designed differently in terms of their orientation in space.
  • the invention understands the rear end region of the pull-out rail to be that region of the pull-out rail which, in the open position, is located between the front roller of the middle rail and its actual end. It preferably understands this to be the region of the pull-out rail which, in the over-extension, is located in the axial region around the rear roller.
  • the lateral guide roller forms the axially rearmost contact point
  • the upper roller is arranged closer to the front end of the pull-out rail and the lower roller is arranged even closer to the front end of the pull-out rail.
  • two side guide rollers are provided at an axial distance from one another in the area of the rear end of the pull-out rail. This is particularly safe in terms of preventing friction between the pull-out rail and the middle rail and improves the mobility of the pull-out rail relative to the middle rail.
  • the radial distance between the two mutually facing sides of the circumferences of the upper roller and the side guide roller according to the invention is less than 5 cm, in particular less than 3 cm, particularly preferably less than 1.5 cm.
  • the middle rail has a lower front roller in a front end region and a lower rear roller in a rear end region of the middle rail such that the front roller contacts the pull-out rail in the open position and the rear roller contacts the pull-out rail in the closed position, each at a distance from a front or rear end of the pull-out rail.
  • the center rail has a front upper roller, the axis of rotation of which is arranged in front of the axis of rotation of the side guide roller, seen along the extension path.
  • the lateral guide rollers are of identical construction, in particular the rollers are of identical construction to one another. This advantageously simplifies the design and manufacture as well as the maintenance of the differential extension guide.
  • the invention is explained in more detail below with reference to the figures of the drawing, in which identical parts are provided with the same reference numerals.
  • Fig. 1 Side view of a differential pull-out guide according to the invention in closed position
  • Fig. 2 Side view of a differential pull-out guide according to the invention in the open position
  • Fig. 3 a detailed view of the three rails of the differential pull-out guide according to the invention.
  • Fig. 4 a perspective view of the differential extension guide according to the invention in an intermediate position with incipient differential action
  • Fig. 5 an open position of the differential pull-out guide according to the invention
  • Fig. 6 a perspective view from below.
  • Fig. 1 shows a differential pull-out guide 1 according to the invention in a closed position.
  • the side of the differential pull-out guide 1 facing a pull-out furniture part can be seen.
  • a body rail 3 has a main surface 18 on which two secondary surfaces 19, 20 are arranged.
  • the upper secondary surface 19 has an upper track 6, the lower secondary surface 20 has a lower track 7.
  • a middle rail 5 runs on its upper rollers 8 and lower rollers 9.
  • the middle rail 5 has a differential roller 11. This transfers part of the load of the pull-out rail 4 directly to the cabinet rail 3.
  • the differential roller 10 preferably has a play in the vertical direction.
  • the middle rail 5 In the area above the differential roller 10, it has an upper roller 8 which is offset slightly forwards relative to the latter and which, in the open position, supports the rear end of the pull-out rail 4 against pivoting upwards.
  • the pull-out rail 4 runs between lower contact points 12 of the upper rollers 8 and upper contact points 11 of the lower rollers 9 of the middle rail 5 and is thus guided between them (see Fig. 3). It has a main surface and a secondary surface 18, 19, the latter carrying the two tracks 6, 7 of the pull-out rail (see Fig. 3).
  • the pull-out furniture part to be attached would be attached directly to the main surface of the pull-out rail 4, but this could also have a lower horizontal bar as a second secondary surface on which the pull-out furniture part would then rest.
  • the rails 3, 4, 5 are pushed together as far as possible, with the front ends of these rails aligned.
  • the middle rail 5 is shorter than the other two rails and thus leaves space at the rear end, in particular for an automatic retraction device.
  • Fastening options 21 can be seen in the pull-out rail 4 and the body rail 3, which are primarily designed as through-openings with or without an internal thread and which are used to fasten a pull-out furniture part to the pull-out rail 4 and the differential pull-out guide to a furniture body.
  • the furniture parts are not shown.
  • Fig. 2 shows a differential extension guide 1 according to the invention in its open position - the over-extension - with the rails 3, 4, 5 pulled apart to the maximum.
  • the part of the body rail 3 shown on the right there are components such as stop means for limiting the travel, Self-closing means, locking devices, etc., which are initially not relevant to the invention and are therefore not described in more detail.
  • the differential roller 10 can be seen in the middle rail 5, which runs in the lower track 7 of the body rail 3. In the open position, the lower contact point 12 of the differential roller 10 is located at a front end of the lower track 7 of the body rail 3.
  • An upper roller 8 is assigned to the differential roller 10. This makes contact with its lower contact point 12 with the upper track of the pull-out rail 4 and with its upper contact point 11 with the upper track 6 of the body rail 3 at its end.
  • the differential roller 10 and the assigned upper roller 8 define the position of the normal extension for the pull-out rail 4, in which the rear end of the pull-out rail 4 is located between the two rollers.
  • the lower roller 9 of the middle rail 5 which contacts the pull-out rail 5 further forward, contacts it in the area between the rear end of the pull-out rail and its center, preferably in the area of its longitudinal center.
  • This increases the load-bearing capacity of the differential rail according to the invention.
  • the front stops which prevent the pull-out rail 4 from being pulled out further cannot be seen in Figure 2.
  • the middle rail 3 has the lateral guide roller 13 according to the invention, which enables the pull-out rail 4 to be guided laterally in the last area of the pull-out path before and when the open position is reached.
  • a further auxiliary roller 13' can be provided between the lateral guide roller 13 according to the invention and the front lower roller 9 (see Figure 3).
  • At least one side guide roller 13, 13' and 13" is always effective over preferably 100% of the extension path, but at least over the last 10% in the area of the open position.
  • Preferably, two side guide rollers are effective over 100% of the extension path.
  • Fig. 3 shows an individual representation of the three rails 3, 4 and 5 with the previously mentioned features.
  • the middle rail 5 consists of a folded profile to which the rollers 8, 9 are mounted, in particular mounted on one side.
  • the pull-out rail 4 and the body rail 3 are the same length. In the closed position, they are flush with each other at both their front ends and their rear ends. It would also be conceivable to make the body rail 3 shorter than the pull-out rail 4, so that in the closed position it would be offset forwards compared to the rear end of the pull-out rail.
  • the two side guide rollers 13, 13' are particularly relevant, of which the rear side guide roller 13 shown on the left is essential to the invention. This ensures the secure lateral guidance of the pull-out rail 4 in the last area of the pull-out path 14 under load, preferably supported by the one located axially in front of it.
  • "Under load” means the other way around that the pull-out rail and the middle rail of the differential pull-out guide according to the invention are connected to one another so loosely and with so much play when not installed that the pull-out rail does not necessarily always have to touch the side guide roller 13 according to the invention, but always does so under load, i.e. in the installed position with a fastened and in particular loaded drawer.
  • the three side guide rollers 13, 13' and 13" ensure a side guide of the pull-out rail 4 over the entire pull-out path. Due to its arrangement, the side guide roller 13, which is essential to the invention, means that the pull-out rail 4 cannot contact the middle rail to form a frictional connection. This prevents The above-mentioned joint, rigid movement of both rails, so that the desired differential function can always be carried out.
  • the middle rail 5 also has a stop means 22 on the right-hand side in the area of the upper rollers 8, but this is not according to the invention and is therefore not described further.
  • the fastening options 21 in the body rail 3 under the pull-out rail 4 can again be seen, which are used to fasten the invention to a body and to a pull-out furniture part such as a drawer.
  • Fig. 4 shows a position of the differential pull-out guide 1 according to the invention in the normal pull-out position, in which the differential effect begins or ends.
  • a rear end 17 of the pull-out rail 4 lies between the differential roller 10 and the upper rollers 8 assigned to it.
  • the pull-out rail 4 will cover twice the distance of the middle rail 5.
  • the detailed views marked with the letters A, B show the contact of the differential roller 10 on the lower track 7 of the body rail 3 and the contact of the assigned upper rollers 8 on the upper track of the pull-out rail 4.
  • a run-in slope 24 of the pull-out rail 4 can also be seen.
  • Fig. 5 shows the open position - the over-extension - of the differential pull-out guide 1 according to the invention.
  • an upper roller 8 of the middle rail 5 contacts a rear end area of the upper track of the pull-out rail 4, which according to the invention is also contacted by the auxiliary roller 13.
  • the partially sectioned detailed illustration B clearly shows in the 3:1 magnification that the side guide roller 13, like the other side guide rollers, has a rotation axis tilted by 90° compared to the rotation axes of the upper rollers 8, so that it is parallel to a main surface of the middle rail 5. aligned.
  • the side guide roller 13 and the additional auxiliary roller 13' in the detailed illustration A thus contact a main surface of the pull-out rail 4.
  • the auxiliary roller 13 according to the invention additionally ensures that the pull-out rail 4 is always moved coaxially to the middle rail 5 and that no angle is formed between the two, which would lead to the pull-out rail 4 jamming.
  • FIG. 6 shows the installation situation of the auxiliary roller 13 according to the invention and relevant to the invention from a perspective view from below.
  • the middle rail 5 has a recess 25 through which the side guide roller 13 passes. Also visible are two fastening openings 26 for holding a side guide roller holder 27, in which the latter is held in a force-fitting or form-fitting manner.
  • the side guide roller holder 27 contains the axle bearings of the side guide roller 13.
  • lateral guide rollers 13, 13' and 13" are of identical construction, in particular made of the same material, which on the one hand simplifies storage and replacement and on the other hand results in uniform rolling properties.
  • the lateral guide roller 13 is particularly relevant for avoiding the disadvantages of over-extension, but its effect is enhanced in a further development of the invention by the lateral guide roller 13'.

Landscapes

  • Drawers Of Furniture (AREA)

Abstract

L'invention concerne une glissière de tiroir (1) pour éléments de meubles escamotables, comportant un rail de corps (3) pouvant être fixé à un corps de meuble, un rail coulissant (4) pouvant être fixé à un élément de meuble escamotable et un rail médian (5) agencé entre le rail de corps (3) et le rail coulissant (4), conformément à la revendication 1, caractérisé en ce qu'un galet de guidage latéral (13) du rail central (5) est agencé dans la trajectoire coulissante (14) sur le rail central (5) de manière à être en contact avec une zone d'extrémité arrière (16) du rail coulissant (4) en position ouverte.
EP24725446.9A 2023-05-11 2024-05-08 Glissière de tiroir Pending EP4687586A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023112548.6A DE102023112548B3 (de) 2023-05-11 2023-05-11 Differenzialausziehführung
PCT/EP2024/062698 WO2024231439A1 (fr) 2023-05-11 2024-05-08 Glissière de tiroir

Publications (1)

Publication Number Publication Date
EP4687586A1 true EP4687586A1 (fr) 2026-02-11

Family

ID=91076567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24725446.9A Pending EP4687586A1 (fr) 2023-05-11 2024-05-08 Glissière de tiroir

Country Status (5)

Country Link
US (1) US20260114617A1 (fr)
EP (1) EP4687586A1 (fr)
CN (1) CN121285317A (fr)
DE (1) DE102023112548B3 (fr)
WO (1) WO2024231439A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102024117471B3 (de) * 2024-06-20 2025-06-12 Fulterer Ag & Co. Kg Differentialauszug mit Selbsteinzugsvorrichtung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20321394U1 (de) 1980-02-02 2007-02-01 Fulterer Gesellschaft Mbh Unterbodenausziehführung für ausziehbare Möbelteile
MY131063A (en) * 2002-05-17 2007-07-31 Harn Marketing Sdn Bhd Guide rails pull-out drawer/equipment
AT502661B1 (de) 2005-12-06 2007-05-15 Fulterer Gmbh Differentialausziehführung für ausziehbare möbelteile
ES2631824T3 (es) * 2006-02-13 2017-09-05 Grass Gmbh Dispositivo para guiar el movimiento de partes de muebles que pueden moverse unas con relación a las otras, en particular para guías de cajones, así como guía de cajón con un dispositivo de este tipo
AT505053B1 (de) 2007-04-02 2009-02-15 Fulterer Gmbh Rollen-differentialausziehführung
AT506062B1 (de) * 2007-12-27 2009-06-15 Fulterer Gmbh Rollen-ausziehführung
DE102013113672A1 (de) * 2013-06-14 2014-12-18 Paul Hettich Gmbh & Co. Kg Auszugssystem
CN106901525A (zh) * 2015-12-23 2017-06-30 慈溪市力胜模具钢有限公司 一种用于抽屉的拉出导向装置
AT17935U1 (de) * 2017-08-17 2023-08-15 Blum Gmbh Julius Schubladenausziehführung

Also Published As

Publication number Publication date
CN121285317A (zh) 2026-01-06
DE102023112548B3 (de) 2024-08-14
US20260114617A1 (en) 2026-04-30
WO2024231439A1 (fr) 2024-11-14

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