EP0546201B1 - Glissière pour tiroirs - Google Patents

Glissière pour tiroirs Download PDF

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Publication number
EP0546201B1
EP0546201B1 EP91120937A EP91120937A EP0546201B1 EP 0546201 B1 EP0546201 B1 EP 0546201B1 EP 91120937 A EP91120937 A EP 91120937A EP 91120937 A EP91120937 A EP 91120937A EP 0546201 B1 EP0546201 B1 EP 0546201B1
Authority
EP
European Patent Office
Prior art keywords
drawer
guide
pivot
spring
guide according
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
EP91120937A
Other languages
German (de)
English (en)
Other versions
EP0546201A1 (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
Priority to EP91120937A priority Critical patent/EP0546201B1/fr
Priority to ES91120937T priority patent/ES2086465T3/es
Priority to AT91120937T priority patent/ATE134845T1/de
Priority to DE59107521T priority patent/DE59107521D1/de
Publication of EP0546201A1 publication Critical patent/EP0546201A1/fr
Application granted granted Critical
Publication of EP0546201B1 publication Critical patent/EP0546201B1/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 weight of the drawer is then supported by the support rollers, while the rollers prevent the drawer from tipping down.
  • the drawer is fully extended so that the drawer box can be pulled out of the furniture in its entire useful depth, so that the inside of the drawer box is completely accessible from above, while a support structure attached to the drawer 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 With the drawer almost fully inserted the swivel arms are unlocked by passing control cams. The swivel arms are then 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.
  • 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, and in which, despite the pivotability of the swivel arms carrying the castors, stable guide behavior when pulled out Drawer is guaranteed, but in which the control of the engagement of the locking elements does not affect the smooth running of the drawer.
  • the swivel arms and the drawer have interlocking locking elements which lock the swivel arms in the extended state.
  • the mutual engagement of the locking elements is effected in that the drawer is pulled out in whole or in part Condition when its center of gravity is in front of the support rollers, is pushed up at the rear end. This upward force causes the locking elements of the swivel arm to engage with those of the drawer, so that the swivel arms are locked in the extended state.
  • the swivel arms can no longer be pivoted, so that the rollers mounted on them stabilize the drawer against lateral pivoting.
  • An advantage is that the engagement of the locking elements is controlled depending on the load on the drawer, that is, depending on the respective pull-out position. Control cams, cam tracks or link controls are not required to lock the swivel arms. This has the advantage that the running of the drawer is not disturbed and that the running in or pulling out of the drawer is in no way hindered.
  • the drawer guide according to the invention is therefore suitable also for drawers that should move into their closed position automatically despite only a slight slope and therefore have to run very smoothly.
  • the locking elements can be partially attached to the swivel arms at the top or bottom. They are preferably provided on the undersides of the swivel arms, specifically in the area which lies behind the axes of the swivel arms.
  • the swivel arm expediently has a freedom of movement with respect to the drawer, e.g. a vertical shift game or tilt game.
  • the locking element which is arranged on the drawer or the holder is expediently controlled in such a way that when the rear end of the drawer is raised in the direction of the locking element of the swivel arm moves so that the locking elements on both sides move towards each other.
  • the freedom of movement that the swivel arm must have is reduced and a firm mutual engagement of the locking elements in the case of loading the drawer is achieved.
  • the drawer guide according to the invention in which the locking elements come into mutual engagement only when the weight of the pulled-out part of the drawer causes this, also offers the Advantage that the lock releases automatically when the pulled-out part of the drawer is raised. This makes it easier to completely remove the drawer from its guide.
  • the part of the drawer that is pulled out of the drawer guide or the furniture part only needs to be lifted slightly so that the swivel arms can be swiveled inwards and come free from the guide rails.
  • deflectors can be provided at the front ends of the drawer guide, which, when the drawer is raised when it is pulled out, pivot the unlocked swivel arms inwards.
  • This function can also be performed by preloaded springs that drive the swivel arms into the swiveled-in state. It is advantageous that the space required in front of the drawer cabinet for removing the drawer can be kept as short as possible, because when the drawer is removed from its guide, the swivel arms are always in the pivoted-in state.
  • 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 gradient in the Drawer guide to achieve an automatic entry into the closed position.
  • drawer guide according to the invention is not limited to pharmacy cabinets.
  • FIG. 1 shows a cabinet 10 which contains numerous drawers 11 which can be pulled out of the cabinet towards the front.
  • the drawer box has two parallel side walls 13, a rear wall 14, a front wall to which an exchangeable panel 15 is fastened, and a bottom wall 16.
  • the bottom wall 16 can be transparent, for example consist of a grid.
  • the interior of the drawer box 12 is divided by compartments 17 which can be displaced into compartments which serve to hold various types of medication.
  • a card holder 18 can be assigned to each compartment, which is clamped onto the relevant side wall 13 and into which cards identifying the medicinal product can be inserted.
  • the card carriers 18 are located on the outside of the side wall 13.
  • a pull-out rail 19 runs on each of the side walls 13, which extends outwards and is arranged at a height of approximately 30 mm above the floor 16.
  • the part of the side wall 13 projecting beyond the pull-out rail 19 must be high enough that the card carriers 18 have space on it without colliding with the pull-out rail 19. This requires arranging the pull-out rail 19 relatively deep.
  • two guide rails 20 are mounted inside the cabinet 10 with a laterally open C or U-shaped profile. At the front ends of these guide rails 20, a support roller 21 is mounted. The pull-out rail 19 rests on the support roller 21 which projects upward above the guide rail.
  • the side walls 13 are to the rear over the rear wall 14 extended and they carry there holder 22, on each of which a pivot arm 23 is mounted pivotably about a vertical pivot axis 24.
  • the pivot arms 23 are pivotable between the first position shown in Fig. 3, 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 holder 22 the rear end of the Form drawer 11.
  • 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 flange 20a of this guide rail.
  • the two guide rails 20 are connected to one another by a cross member 28 with guide tracks 26.
  • the swivel arms 23 From the inside of the swivel arms 23 protrude guide pieces 27, which are arranged just in front of the rollers 25 and which can come into engagement with a guide track 26 to pivot the swivel arms 23 against each other (inwards) at the end of the insertion movement of the drawer, so that the swivel arms assume a swiveled-in state when the drawer is pushed in.
  • 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 at 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 emerge 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 run on the upper flange 20a, which forms the upper of the two horizontal legs of the guide rail.
  • the auxiliary rollers 29 thus run freely on the 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 upper flanges 20a of the guide rail 20 and the auxiliary rollers 29 lift off the roller leg. 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.
  • the brackets 22 fastened to the extensions of the side walls 13 and to the rear wall 14 have a horizontal upper plate 22a, a horizontal lower plate 22b and a vertical plate 22c as shown in FIG. 5 on.
  • the vertical shaft 24, which forms the pivot axis for the pivot arm 23, extends between the upper plate 22a and the lower plate 22b.
  • the swivel arm 23 is mounted with tabs 30 such that the swivel arm 23 has little vertical play between the plates 22a and 22b and can thus move freely about the axis 24 by approximately 1 mm.
  • the swivel arm 23 has a slight tilting play with respect to the holder 22, ie it can be tilted vertically in the plane of the swivel arm.
  • first locking elements 31 are provided, which are designed as straight-line ribbing or teeth, the teeth running in the longitudinal direction of the drawer.
  • the locking elements 31 are attached to the top of the lower plate 22b, behind the axis 24.
  • Second locking elements 32 are provided according to FIG. 6 on the underside of the swivel arm 23.
  • the second locking elements 32 are also longitudinal teeth which can come into engagement with the teeth forming the first locking elements 31 when the swivel arm 23 is in the extended state, which is indicated in FIG. 6 by 23a.
  • the auxiliary rollers 29 according to FIG. 4 are each equipped with a flange 29a with which they are guided laterally on the running leg 20a.
  • FIG. 7 largely corresponds to the first embodiment, so that the following description is limited to the explanation of the differences.
  • the swivel arm 23 is mounted on the shaft 24 with vertical play between the plates 22a and 22b of the holder 22.
  • a plate 40 designed as a leaf spring is fastened to the plate 22b and presses against the swivel arm 23 from below and drives it into its upper end position in which the locking elements 31a and 32a are disengaged.
  • the spring 40 is attached to the underside of the plate 22b and protrudes through a recess 41 of the plate 22b to press against the lower leg of the swing arm 23.
  • the locking element 31a of the holder 22 here consists of a projection projecting from the plate 22b and the locking element 32a of the swivel arm 23 consists of a hole adapted to the projection in the lower horizontal leg of the swivel arm. With the swivel arm 23 extended, the locking element 32a is located exactly above the locking element 31a, so that both come into positive mutual engagement when the rear drawer end is raised.
  • a spring 42 which drives the swivel arm 23 in the direction of its swiveled-in state.
  • This spring 42 is a leg spring which surrounds the shaft 24 in a helical manner and which engages with one leg 42a on the extension of the side wall 13, while the other leg 42b presses against the pivot arm 23 in order to drive it into the pivoted-in state.
  • the locking element 31a of the holder 22 consists of a protrusion projecting beyond the plate 22b and the locking element 32a of the swivel arm 23 consists of an opening or hole in the lower leg 23b of the swivel arm 23.
  • a spring 44 drives the swivel arm 23 along to its upper end position of the shaft 24 in which the locking elements 31a and 32a are disengaged.
  • the spring 44 is a leaf spring which is clamped with a clamping end 44a on the underside of the plate 22b and extends essentially in the longitudinal direction, that is to say parallel to the guide rail 20. In the relaxed state, the spring 44 runs in an arc shape in a single plane.
  • the clamping end 44a At the end opposite the clamping end 44a, it carries the locking element 31a, which projects through an opening 45 of the plate 22b.
  • the spring 44 is fixed in the plate 22b at one end of the opening 45 (FIGS. 12 and 13), so that this end forms a pivot point 46 for the spring 44.
  • an upstanding pin 47 is attached to this spring, which protrudes through a hole in the plate 22b and presses against the leg 23b of the swivel arm 23 from below.
  • the pin 47 is arranged such that it engages the leg 23b in each pivoting position of the pivot arm 23.
  • the spring 47 on the locking element 31a has an upstanding edge 48 which extends in the longitudinal direction of the spring and can penetrate into the locking element 32a if, according to FIG. 13, the spring 44 extends around the end 46 of the opening 45 is pivoted.
  • the spring 44 forms a two-armed lever with respect to the pivot point 46, one lever arm extending from the pivot point 46 to the pin 47 and having the length a and the other lever arm extending from the pivot point 46 to the edge 48 and the length b Has. Both lever arms have approximately the same length, but the length b could preferably be greater than the length a in order to effect a lever transmission.
  • FIG. 12 shows the state in which the spring 44 presses the pivot arm 23 up with its pin 47, the locking elements 31a and 32a being disengaged.
  • FIG. 13 shows the state in which the rear end of the drawer has been pushed up relative to the swivel arm 23 by loading the pulled out front end of the drawer.
  • the pivot arm holds the pin 47 down so that the spring 44 is pressed down in the central region of its length relative to the plate 22b.
  • the locking element 31a located at the end of the spring is pressed up using the spiral spring in order to penetrate into the opening of the locking element 32a and to fix the swivel arm 23.
  • the figures 15 and 16 show an exemplary embodiment in which a deflector 50 is provided directly behind the support roller 21 at the front end of the guide rail 20.
  • the locking elements are omitted here for reasons of clarity.
  • the deflector 50 is directed sideways obliquely towards the front and inwards from the outer wall of the guide rail 20. It thus protrudes into the interior of the guide rail, so that the roller 25 guided in the guide rail 20 abuts against the deflector 50 when the drawer is removed from the guide, as a result of which the pivot arm 23 is pivoted inward according to FIG. 16. In this way, the drawer can be easily removed from the guide, if its protruding area is lifted out of the guide and the locking of the swivel arms 23 is released, without the drawer body having to be angled up substantially beyond the horizontal.

Landscapes

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

Claims (11)

  1. Glissière de tiroir, comportant
       deux rails de guidage (20) côté meuble,
       deux rails d'extension (19) côté tiroir,
       des galets de support (21), prévus sur les extrémités avant des rails de guidage (20) pour supporter les rails d'extension (19)
       des galets auxiliaires (29) se déplaçant le long du rail de guidage (20), prévus sur l'extrémité arrière du tiroir (11),
       des bras pivotants (23), prévus à l'extrémité arrière du tiroir avec des galets de roulement (25) se déplaçant le long des rails de guidage,
       des voies de guidage (26) côté meuble pour faire pivoter les bras pivotants (23) contre le tiroir, et
       des éléments de verrouillage (31, 32 ; 31a, 32a) agissant conjointement, prévus sur les bras pivotants (23) et sur le tiroir (11),
       caractérisée en ce que
       à l'état déployé des bras pivotants (23), les éléments de verrouillage (31, 32 ; 31a, 32a) viennent en accrochage réciproque en fonction de la charge en raison du fait que, lorsque le tiroir est sorti, son centre de gravité se situe à l'avant des galets de support (21) et pousse la partie arrière du tiroir vers le haut.
  2. Glissière de tiroir selon la revendication 1, caractérisée en ce que chaque bras pivotant (23) est guidé sur le tiroir (11) au niveau d'un axe (24) avec jeu vertical ou jeu de basculement.
  3. Glissière de tiroir selon l'une des revendications 1 ou 2, caractérisée en ce que les éléments de verrouillage (31, 32) sont respectivement constitués d'un groupe de dents parallèles s'étendant en ligne de droite.
  4. Glissière de tiroir selon l'une des revendications 1 ou 2, caractérisée en ce que les éléments de verrouillage (31a, 32a) sont constitués d'un seul évidement et d'une seule partie en saillie.
  5. Glissière de tiroir selon l'une quelconque des revendications 1 à 4, caractérisée en ce qu'il est prévu un ressort (40 ; 44) qui pousse le bras pivotant (23) dans la position de déverrouillage.
  6. Glissière de tiroir selon la revendication 5, caractérisée en ce que, lors de la déviation par le bras pivotant (23) poussé vers le bas, le ressort (44) avance l'élément de verrouillage (31a) du tiroir en direction de l'élément de verrouillage (32a) du bras pivotant (23).
  7. Glissière de tiroir selon la revendication 6, caractérisée en ce que le ressort (44) forme ou entraîne un levier à deux bras, dont l'un des bras de levier pousse le bras pivotant (23) vers le haut et dont l'autre bras de levier porte l'élément de verrouillage (31a) du tiroir.
  8. Glissière de tiroir selon la revendication 7, caractérisée en ce que le bras de levier qui porte l'élément de verrouillage (31a) du tiroir est plus long que le bras de levier qui pousse le bras pivotant (23) vers le haut.
  9. Glissière de tiroir selon l'une des revendications 7 ou 8, caractérisée en ce que le ressort (44) est un ressort recourbé en forme de cintre qui est fixé à l'une de ses extrémités (44a), dont l'autre extrémité porte l'élément de verrouillage (31a), et qui dans la zone médiane de sa longueur comporte un tenon (47) s'appliquant contre le bras pivotant (23).
  10. Glissière de tiroir selon l'une quelconque des revendications 1 à 9, caractérisée en ce qu'un ressort (42) agit sur chaque bras pivotant (23), en poussant le bras pivotant dans la position repliée.
  11. Glissière de tiroir selon l'une quelconque des revendications 1 à 10, caractérisée en ce que sur les extrémités avant des rails de guidage (20) sont disposés des déflecteurs (50) qui poussent les bras pivotants (23) en direction de la position repliée lors de l'extraction du tiroir.
EP91120937A 1991-12-06 1991-12-06 Glissière pour tiroirs Expired - Lifetime EP0546201B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP91120937A EP0546201B1 (fr) 1991-12-06 1991-12-06 Glissière pour tiroirs
ES91120937T ES2086465T3 (es) 1991-12-06 1991-12-06 Guias para cajones.
AT91120937T ATE134845T1 (de) 1991-12-06 1991-12-06 Schubladenführung
DE59107521T DE59107521D1 (de) 1991-12-06 1991-12-06 Schubladenführung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91120937A EP0546201B1 (fr) 1991-12-06 1991-12-06 Glissière pour tiroirs

Publications (2)

Publication Number Publication Date
EP0546201A1 EP0546201A1 (fr) 1993-06-16
EP0546201B1 true EP0546201B1 (fr) 1996-03-06

Family

ID=8207408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91120937A Expired - Lifetime EP0546201B1 (fr) 1991-12-06 1991-12-06 Glissière pour tiroirs

Country Status (4)

Country Link
EP (1) EP0546201B1 (fr)
AT (1) ATE134845T1 (fr)
DE (1) DE59107521D1 (fr)
ES (1) ES2086465T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT406438B (de) * 1996-05-07 2000-05-25 Alfit Ag Schubladenführung
DE19547685B4 (de) * 1995-12-20 2004-02-05 MEPLA-WERKE LAUTENSCHLäGER GMBH & CO. KG Schublade mit Rollen-Ausziehführung
US6453982B1 (en) 1996-12-20 2002-09-24 General Kinematics Corporation Sand cleaning apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836223A (en) * 1972-10-18 1974-09-17 Avm Corp Cabinet drawer suspension system
DE2946113A1 (de) * 1979-11-15 1981-05-21 Erich 6483 Bad Soden-Salmünster Löhnert Auszugsbeschlag fuer einen schubkasten

Also Published As

Publication number Publication date
DE59107521D1 (de) 1996-04-11
ES2086465T3 (es) 1996-07-01
ATE134845T1 (de) 1996-03-15
EP0546201A1 (fr) 1993-06-16

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