EP0572901B1 - Glissière pour tiroirs - Google Patents

Glissière pour tiroirs Download PDF

Info

Publication number
EP0572901B1
EP0572901B1 EP93108413A EP93108413A EP0572901B1 EP 0572901 B1 EP0572901 B1 EP 0572901B1 EP 93108413 A EP93108413 A EP 93108413A EP 93108413 A EP93108413 A EP 93108413A EP 0572901 B1 EP0572901 B1 EP 0572901B1
Authority
EP
European Patent Office
Prior art keywords
drawer
guide
rollers
rails
guide rails
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.)
Expired - Lifetime
Application number
EP93108413A
Other languages
German (de)
English (en)
Other versions
EP0572901A1 (fr
Inventor
Manfred Adolphs
Hansfriedrich Willach
Horst Meier
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.)
Gebr Willach GmbH
Original Assignee
Gebr Willach GmbH
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 Gebr Willach GmbH filed Critical Gebr Willach GmbH
Publication of EP0572901A1 publication Critical patent/EP0572901A1/fr
Application granted granted Critical
Publication of EP0572901B1 publication Critical patent/EP0572901B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47B88/433—Drawers with a couple of pivotally retractable, roller-supporting arms at the rear of the drawer, e.g. for curved slides or guides

Definitions

  • the invention relates to a drawer slide and in particular a drawer slide as a simple pull-out.
  • Drawer guides as single pull-outs have furniture-side guide rails and drawer-side pull-out rails.
  • a support roller is attached to the guide rails at the front end, on which the drawer-side extension rail is supported. Lugs protrude from the rear end of the drawer, on which there are rollers that are guided in the guide rails.
  • the drawer When the drawer is pulled out, it hits a stop if the castors are still a little way in the guide rails. The weight of the drawer is then supported by the support rollers, while the rollers prevent the drawer from tipping down.
  • the drawer When fully extended, the drawer is dimensioned such that the drawer box in its entire useful depth from the Furniture can be pulled out so that the inside of the drawer box is fully accessible from above, while a support structure attached to the drawers is still inside the cabinet.
  • Such drawer runners are those in which the drawer can be pulled out of the cabinet to such an extent that the rear wall of the drawer box is still in front of the cabinet cover. The further a drawer can be pulled out of the cabinet, the longer the support structure protruding from the drawer must be.
  • the cabinet depth must be such that it is equal to the depth of the drawer box plus the length of the support structure. This means that only part of the cabinet depth can be used.
  • the preamble of claim 1 is based on a drawer guide as is known from DE 90 12 423 U.
  • the support structure supporting the drawer when it is pulled out consists of swivel arms which are attached to the rear end of the drawer and which are pivoted inwards when the drawer is pushed in, in order to reduce the effective drawer length when pushed in, and thus also the required cabinet depth.
  • the roller which is normally attached to a rigid rear extension of the drawer, is attached to a swivel arm.
  • the swivel arms and the drawer have interlocking locking elements which keep the swivel arms locked in the stretched state when the rollers are guided within the guide rails.
  • the swivel arms When the drawer is almost fully inserted, the swivel arms are unlocked by passing control cams. Then the swivel arms are transferred from the guide rails to guideways, which cause the swivel arms to pivot inwards in the end position of the drawer. With swivel arms swiveled inwards, the drawer is supported by additional auxiliary rollers located at its end. The smooth movement of the drawer at the end of the insertion movement is impaired by the control cams, and it can happen that the drawer stops shortly before its end position. In this case, the drawer must be closed manually to reach the full insertion position.
  • swivel arms can be moved within their swivel axes within limits or tilted in the vertical plane in order to effect the locking and unlocking.
  • the swivel arms also have an additional degree of freedom. This reduces the stability of the drawer guide and complicates the manufacture with the required tolerances.
  • the invention has for its object to provide a drawer guide of the type specified in the preamble of claim 1, i.e. a drawer guide that requires a small cabinet depth when the drawer can be pulled out further, in which, despite the pivotability of the swivel arms carrying the castors, stable guide behavior when the drawer is pulled out is guaranteed.
  • the drawer guide according to the invention is characterized in that the guide rails on their inside have an inclined guide bar, the roller pulled outwards at least in the end region of the extension length.
  • the swivel arms are pulled by the rollers against stops, so that the mobility of the swivel arms in the swivel plane is increasingly restricted.
  • the distance of the center of gravity of the drawer from the support rollers becomes ever greater, so that the rollers are pressed with increasing force from below against the upper legs of the C-shaped guide rail. From the oblique guide web of the guide rail, the inner edge of the running surface of the roller is pressed outward against the stop, as a result of which the swivel arm is fixed in the extended state.
  • the stabilization is carried out by the auxiliary rollers, which are guided on the guide rails and in this state have a greater distance from the rollers.
  • the guide rails can have a constant clear width throughout their entire length, so that their manufacture is simplified.
  • Each of the swivel arms can be swiveled in the manner of a knee joint, i.e. it can only be swiveled inwards, but not beyond the stretched state.
  • the outward swing is limited by the stop. If a horizontal transverse force acts on the drawer when the drawer is pulled out far, the drawer is blocked by the swivel arm lying behind in the direction of the force effect, which is pressed firmly against its stop under this load, while the swivel arm lying forward in the direction of the force can yield.
  • the pull-out rails preferably grip around the support rollers from above and they have inclined guide webs on both sides of the support rollers.
  • the sloping guide bars also stabilize the drawer against lateral forces.
  • the swivel arms are expediently slightly flexible or torsionally flexible, so that they are clamped between the stops and the inner leg of the guide rail when the drawer is pulled out.
  • the swivel arms can also be rigid if the stops have a corresponding flexibility or elasticity.
  • the swivel axes of the swivel arms are arranged obliquely on the drawer in such a way that they are pressed outwards against the stop when their rollers are loaded vertically. Due to the oblique arrangement of the The swivel arms are already pushed outwards by their own weight, so that they rest against the stops. This avoids oscillating movements of the unloaded roller in the track. If the castors and swivel arms are loaded when the drawer is pulled out, the horizontal force component caused by the inclined position of the swivel axes increases the pressure of the swivel arms against the stops.
  • a particular advantage of the invention is that the swivel arms require only a single degree of freedom, namely the pivotability about their swivel axes, but that the swivel arms do not have to be displaceable along the swivel axes or tiltable in the vertical plane. As a result, the stability of the side guide can be increased with little production effort.
  • the drawer guide according to the invention is particularly suitable for pharmacy drawers.
  • Pharmacy drawers are characterized by a relatively large length with a useful depth in the range of approximately 1.00 m and a total length of approximately 1.25 m.
  • Another special feature of pharmacy drawers is that the pull-out rails on the drawer box must be arranged at a low height above the floor, so that the side walls offer space for attaching card pockets for receiving label holders.
  • Those drawers that are arranged at eye level usually have a transparent bottom.
  • Another feature of pharmacy drawers is a slope in the drawer guide in order to achieve an automatic entry into the closed position.
  • drawer guide according to the invention is not limited to pharmacy cabinets.
  • the drawer guide shown in FIG. 1 has a drawer 12 with parallel side walls 13, a rear wall 14, a front wall to which an exchangeable panel 15 is attached, and a bottom wall 16.
  • the interior of the drawer box 12 can be divided into compartments by means of displaceable dividing walls, which serve to hold various medicines.
  • Along the side walls 13 each have a horizontal pull-out rail 19 which projects outwards.
  • Two guide rails 20 with a laterally open C-profile are provided for each drawer and can be mounted in a cabinet (not shown).
  • a support roller 21 is mounted on the front end of each guide rail 20.
  • the pull-out rail 19 rests on the support roller 21 which projects upward above the guide rail.
  • the side walls 13 are extended towards the rear beyond the rear wall 14 and they carry holders 22 there, on each of which a pivot arm 23 is attached pivotably about a vertical pivot axis 24.
  • the pivot arms 23 are pivotable between a first position in which they extend in the longitudinal direction of the drawer and extend it to the rear, and a second position in which they are pivoted inwards so that the holders 22 form the rear end of the drawer 12.
  • a roller 25 is mounted on a protruding pin. This roller runs in a guide rail 20 and can therefore press from below against the upper running surface of this guide rail.
  • the two guide rails 20 are connected to one another by a cross member 28 with guide tracks 26.
  • Guide pieces 27 protrude from the inside of the swivel arms 23, which are arranged shortly in front of the rollers 25 and which can come into engagement with a guide track 26, shortly before the insertion movement of the drawer ends to pivot the pivot arms 23 against each other (inwards) so that the pivot arms assume a pivoted-in state when the drawer is inserted.
  • the swivel arms here have a length which corresponds to approximately half the width of the drawer, but the length of the swivel arms can also be greater, the swivel arms then overlapping when folded. So that the rollers 25 can leave the C-shaped guide rails 20 shortly before the end of the insertion movement of the drawer, the guide rails have corresponding openings at the end region from which the rollers 25 can exit laterally.
  • auxiliary rollers 29 which are mounted on the extensions of the side walls 13 in the rear region of the drawer box .
  • the auxiliary rollers 29 do not engage in the guide rails 20, but they run on the upper running leg 20a, which forms the upper of the two horizontal legs of the guide rail.
  • the auxiliary rollers 29 thus run freely on the upper running leg 20a of the guide rail without being secured against being lifted off the running leg.
  • rollers 25 only take on the load when the center of gravity of the drawer has exceeded the support rollers 21, which is the case in position C of FIG. 2. Then the rollers are pressed from below against the respective legs 20a of the guide rail 20 and the auxiliary rollers 29 lift off the legs. When the drawer is pulled out further, it is supported by the support rollers 21, while the rear end of the drawer is held down by the rollers 25.
  • a deflector 31 is provided directly behind the support roller 21, which protrudes laterally obliquely towards the front and inwards from the outer wall of the guide rail 20.
  • the deflector 31 thus projects into the interior of the guide rail, so that the roller 25 guided in the guide rail 20 abuts the deflector 31 when the drawer is removed from the guide.
  • the guide rail 20 is open inwards, so that the roller 25 can leave the guide rail inwards.
  • the pivot arm 23 is thereby pivoted inwards. In this way, the drawer can be easily removed from the guide.
  • the C-shaped guide rail 20 has an upper leg 20a and a lower leg 20b and a vertical base 20c.
  • the upper runner 20a has two inclined guide webs 33, 34, of which the guide web 34 forms the transition to the base 20c, while the guide web 33 encompasses the upper end of the roller 25.
  • the lower running leg 20b runs horizontally, but it can also have a web that surrounds the running roller 25.
  • the lateral track play of the roller 25 in the guide rail 20 is as narrow as is just required for the roller 25 to run freely.
  • the rollers 25 When the drawer is in the largely pushed-in state, the rollers 25 are relieved, so that they are at a distance from the two legs 20a and 20b. When the drawer is pulled out, on the other hand, the rollers 25 are pressed against the legs 20a from below, the inner edge of the roller pressing against the inclined inner guide web 33 and the roller being pressed outwards by this guide web 33. The roller 25 pulls the swivel arm 23 outwards and thereby presses it firmly against the stop 30. As a result, the swivel arm 23 of the drawer is fixed in the extended state.
  • the swivel arms 23 are flexible or torsionally flexible and / or the stops 30 yield elastically in order to avoid jamming of the rollers in the guide rails.
  • the swivel arms 23 can only be swiveled about their swivel axes 24, so they have no degree of freedom in a vertical plane.
  • Each of the swivel arms is after Kind of a knee joint can only be pivoted inwards, ie it cannot be pivoted outwards beyond the stretched state.
  • the knee joint is made stiff in the stretched state by the interaction of the guide web 33 and the stop 30.
  • FIG. 5 shows a side wall 13 of the drawer box 12 with the pull-out rail 19 protruding therefrom, which is carried by the support roller 21.
  • the pull-out rail 19 is double-walled and bent out of the material of the side wall 13. It has a horizontal upper running leg 35 and two guide webs 36 and 37 projecting obliquely downwards on both sides thereof.
  • the pull-out rail 19 engages around the support roller 21 from above, i.e. it is wider than the support roller.
  • the horizontal part of the underside of the running leg 35 has a width which essentially corresponds to the width of the support roller 21.
  • Fig. 6 shows a rear view of a modified drawer 12.
  • This embodiment differs from the previous one in that the pivot axes 24 are not arranged vertically, but are inclined in a transverse plane of the drawer.
  • the pivot axes 24 are arranged in a V-shape, ie they converge downwards. 4 is pressed against the running leg 20a of the guide rail 20 from below when pulling out the drawer, acts on the swivel arm 23 due to the inclined position of its pivot axis 24, an outward force component that the swivel arm additionally against the Stop 30 presses.

Landscapes

  • Drawers Of Furniture (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)

Claims (6)

  1. Glissière pour tiroirs équipée de deux rails de guidage (20) côté meuble avec un profil sensiblement en forme de C, de deux rails à coulisses (19) côté tiroir, de galets supports (21) prévus sur les extrémités avant des rails de guidage (20) pour soutenir les rails à coulisses (19), de galets auxiliaires (29) prévus sur l'extrémité arrière du tiroir (12) et roulant le long des rails de guidage (20), de bras pivotants (23) prévus sur l'extrémité arrière du tiroir avec les galets de roulement (25) roulant dans les rails de guidage et de glissières (26) côté meuble pour le pivotement des bras pivotants (23) vers le tiroir, caractérisée en ce que les rails de guidage (20) présentent sur leurs faces intérieures des barrettes de guidage (33) inclinées sur lesquelles les galets de roulement (25) roulent au moins dans la zone avant des rails de guidage et tirent de ce fait le bras pivotant (23) correspondant contre une butée (30) empêchant le basculement ultérieur.
  2. Glissière pour tiroirs selon la revendication 1, caractérisée en ce que les rails à coulisses (19) enserrent les galets supports (21) par le haut et présentent des barrettes de guidage (36, 37) inclinées des deux côtés des galets supports (21).
  3. Glissière pour tiroirs selon la revendication 1 ou 2, caractérisée en ce que les bras pivotants (23) sont élastiques en flexion ou en torsion.
  4. Glissière pour tiroirs selon l'une quelconque des revendications 1 et 2, caractérisée en ce que les butées (30) sont élastiques.
  5. Glissière pour tiroirs selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les axes de pivotement (24) des bras pivotants (23) sont disposés de façon inclinée sur le tiroir (12) de telle façon que les bras pivotants soient appuyés vers l'extérieur contre la butée (30) dans le cas d'une charge verticale de leurs galets de roulement (25).
  6. Glissière pour tiroirs selon la revendication 5, caractérisée en ce que les axes de pivotement (24) sont disposés de façon oblique dans le sens transversal du tiroir (12) et convergent vers le bas.
EP93108413A 1992-06-03 1993-05-25 Glissière pour tiroirs Expired - Lifetime EP0572901B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9207462U DE9207462U1 (de) 1992-06-03 1992-06-03 Schubladenführung
DE9207462U 1992-06-03

Publications (2)

Publication Number Publication Date
EP0572901A1 EP0572901A1 (fr) 1993-12-08
EP0572901B1 true EP0572901B1 (fr) 1996-09-11

Family

ID=6880153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93108413A Expired - Lifetime EP0572901B1 (fr) 1992-06-03 1993-05-25 Glissière pour tiroirs

Country Status (4)

Country Link
EP (1) EP0572901B1 (fr)
AT (1) ATE142445T1 (fr)
DE (2) DE9207462U1 (fr)
ES (1) ES2093879T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20312396U1 (de) * 2003-08-12 2004-12-23 Gebr. Willach Gmbh Schubladenführung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT323364B (de) * 1972-12-22 1975-07-10 Fulterer Karl Dr Auszug mit laufrollen für ausziehbare möbelteile
DE2420307A1 (de) * 1974-04-26 1976-03-25 Wilhelm Pollmaier Fa Rollenfuehrung fuer moebelschubkaesten
DE3640253A1 (de) * 1986-11-28 1988-06-09 Hagenhenrich Gmbh & Co Kg Seitengefuehrte auszugfuehrung
DE3703051A1 (de) * 1987-02-03 1988-08-11 Lautenschlaeger Kg Karl Ausziehfuehrung
DE8803088U1 (fr) * 1988-03-08 1988-06-23 Ziehl, Gustav, 5000 Koeln, De
DE4027468A1 (de) * 1990-08-30 1992-03-05 Willach Gmbh Geb Schubladenfuehrung

Also Published As

Publication number Publication date
ES2093879T3 (es) 1997-01-01
ATE142445T1 (de) 1996-09-15
DE9207462U1 (de) 1993-10-07
EP0572901A1 (fr) 1993-12-08
DE59303718D1 (de) 1996-10-17

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