WO1998042232A2 - Glissiere pour extension - Google Patents

Glissiere pour extension Download PDF

Info

Publication number
WO1998042232A2
WO1998042232A2 PCT/GB1998/000842 GB9800842W WO9842232A2 WO 1998042232 A2 WO1998042232 A2 WO 1998042232A2 GB 9800842 W GB9800842 W GB 9800842W WO 9842232 A2 WO9842232 A2 WO 9842232A2
Authority
WO
WIPO (PCT)
Prior art keywords
tracks
buffer
roller
drawer
slide
Prior art date
Application number
PCT/GB1998/000842
Other languages
English (en)
Other versions
WO1998042232A3 (fr
Inventor
Richard N. Munachen
Original Assignee
Metsec Plc
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
Priority claimed from GBGB9706014.9A external-priority patent/GB9706014D0/en
Priority claimed from GBGB9714932.2A external-priority patent/GB9714932D0/en
Application filed by Metsec Plc filed Critical Metsec Plc
Priority to EP98912594A priority Critical patent/EP1011383A2/fr
Priority to AU67377/98A priority patent/AU6737798A/en
Publication of WO1998042232A2 publication Critical patent/WO1998042232A2/fr
Publication of WO1998042232A3 publication Critical patent/WO1998042232A3/fr

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
    • A47B88/453—Actuated drawers
    • A47B88/46—Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A47B88/467—Actuated drawers operated by mechanically-stored energy, e.g. by springs self-closing
    • 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
    • A47B2210/0018—Buffers, stop blocks or latches for single drawer 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
    • A47B2210/0064—Guide sequencing or synchronisation
    • A47B2210/0081—Telescopic drawer rails with stop blocks, e.g. synchronization buffers

Definitions

  • This invention relates to a drawer slide for use in a drawer slide assembly in such items of furniture as filing cabinets and other items of office furniture or domestic furniture such as bedroom and kitchen drawer units and more particularly to roller stop buffers for use in such a drawer slide.
  • a drawer slide formed by cold rolling metal strip and shaped, in cross-section, to define mutually presented tracks for receiving and cooperating with rollers carried, in use, by a drawer or by a drawer receiving cabinet, a web portion integrally interconnecting said tracks, stop means at one end of a channel defined by said web and its respective tracks, and a buffer associated with said stop means, wherein said buffer is constructed from a shock-absorbent resilient material and comprises a pair of faces which each abut, or are closely adjacent, a respective one of said tracks, and a recess which is presented towards said rollers and is of such a size and shape that, in use, a roller may at least partially enter therein and abut a surface of the recess, causing the buffer to be distorted between the roller and the tracks such that at least one of said pair of faces abuts its respective track and so transfers part of the energy of the relative movement of the slide and the roller to the track, so cushioning any impact
  • the buffer is so shaped that, in use, each of said pair of faces abuts its respective track as the roller enters therein.
  • the surface of said recess may be defined by a single curved wall or it may be defined by at least a pair of walls having different radii of curvature.
  • the surface of said recess comprises a pair of rectilinear walls which diverge in the direction of the rollers. Said pair of walls may be connected at their end of closest convergence by a third wall which may be perpendicular to the tracks.
  • the angle between said first wall and said third wall is equal to the angle between said second wall and said third wall.
  • this angle is between 1 10° and 120°. Most preferably this angle is 1 15°.
  • said recess preferably has a truncated "V" cross-section.
  • the shape of each of said pair of faces of the buffer corresponds to the shape of the adjacent track.
  • the surface of said recess is itself recessed at its regions of impact by the roller so as to accept and locate the roller periphery at impact.
  • said buffer is formed from a material having a shore hardness of greater than 45. More preferably, between 45 and 65. Most preferably said material is rubber.
  • the drawer slide also includes an additional pair of mutually presented tracks for receiving and cooperating with additional rollers carried, in use, by the drawer receiving cabinet or by the drawer, and an additional web portion integrally interconnecting said additional tracks, said additional web and additional tracks defining an additional channel.
  • a stop means and associated buffer may be provided at each end of said channel and a stop means and associated buffer may be provided at one or both ends of said additional channel.
  • a buffer designed and adapted for use in a drawer slide, wherein a recess extends from a first face to a second face, and wherein the surface of said recess comprises a pair of non-parallel planar walls which diverge away from a base of said recess.
  • Said planar walls may converge at one end, in which case the recess has a "V" cross-section, and the line of intersection of said walls defines the base of the recess.
  • Said pair of planar walls may be connected at their end of closest convergence by a third wall, in which case said third wall defines the base of the recess.
  • said third wall is planar and the angle between said first wall and said third wall is equal to the angle between said second wall and said third wall and is between 110° and 120°. Most preferably this angle is 1 15°.
  • said recess preferably has a truncated "V" cross-section.
  • the surface of said recess is itself recessed at its regions of impact by the roller so as to accept and locate the roller periphery at impact.
  • the buffer includes a third and a fourth face which extend substantially perpendicularly to said first and second faces, and said third and fourth faces each have either a convex or concave cross-section.
  • Figure 1 is a diagrammatic side elevational view, in section, of a drawer and cabinet showing, in the upper part of the view, the drawer closed, and in the lower part of the view the drawer open;
  • Figure 2 is a diagrammatic perspective view showing, in part, a drawer slide according to the present invention.
  • Figure 3 is a diagrammatic perspective view of a buffer forming part of the slide of Figure 2 in use;
  • Figure 4 is a diagrammatic end elevational view of the buffer of Figure 3 located on the drawer slide of Figure 2;
  • Figure 5 is a diagrammatic side elevation view showing the buffer of Figure 3 located on the drawer slide of Figure 2;
  • Figure 6 is a diagrammatic perspective view of an end region of the drawer slide;
  • Figure 7 is a diagrammatic, partly exploded, perspective view of the drawer slide concentrating on the lower tracks.
  • Figures 8 and 9 are enlarged perspective views of a resilient buffer of the lower tracks of the drawer slide.
  • the drawer structure 1 1 is slidably supported within a cabinet carcass 12 by means of rollers 13 and 14 carried by the drawer and the cabinet respectively, the rollers cooperating with a drawer slide 15.
  • a pair of spaced rollers 13 is carried by the side wall of the drawer 1 1 aligned horizontally above a pair of spaced rollers 14 carried by the side wall of the cabinet carcass.
  • the drawer 1 1 is supported by the cabinet, through the intermediary of the slide 15 throughout the whole of its travel between its fully closed and its fully open position, the length of the slide and the spacing of the rollers determining the length of the drawer travel.
  • the slide 15 is formed by a cold rolling operation from mild steel strip.
  • the slide 15 is basically an S-shape the upper curve of the S defining a pair of parallel, mutually presented, concave, upper tracks 16 cooperating with the rollers 13 (not shown), and the lower curve of the S defining a pair of spaced mutually presented, convex, lower tracks 1 7 cooperating with the rollers 14. More specifically the edge of the slide 15 which will be uppermost in use is, in cross-section, shaped to a part circular form to define the top track 16a of the concave upper tracks 16.
  • the curve of the track 16a is arranged with its concave face presented vertically downwardly, and an integral, vertically extending web 18 lies between the rollers 13 (not shown) and the side wall of the cabinet in use and integrally unites the top track 16a with an intermediate region of the slide 15, which defines the lowermost concave track 16b of the upper tracks 16 and the top track 17a of the lower tracks 17.
  • The' intermediate region defines a mirror image of the track 16a so that the concave face of the track 16b is presented vertically upwardly, and the convex outer face of the strip at that point defines the track 17a.
  • the strip is bent through approximately 180° to define a second web 19.
  • the web 19 extends vertically downwardly in use between the rollers 14 and the side wall of the drawer 11 and at its lower edge the strip is bent to form a convex rib defining the bottom track 17b of the lower tracks 17, the free edge being bent underneath the rib to form a flange 21 lying generally at right angles to the web 19.
  • the tracks of the slide 15 are shaped to cooperate with the treads of the rollers, and thus the rollers 13 carried by the drawer have, in transverse cross-section, a convex, generally part-circular, periphery while the rollers 14 have, in transverse cross-section, a concave, generally part-circular, periphery.
  • radius of curvature of the concave tracks 16 will be slightly larger than the radius of curvature of the convex rollers 13 and the radius of curvature of the convex tracks 17 will be slightly smaller than the radius of curvature of the concave rollers 14 so that the rollers can centre themselves within their respective tracks without binding.
  • Both ends of the channel defined by the tracks 16 and the web 18 are closed by integral, upturned flanges 24 (only one shown); and one end of the channel defined by the tracks 17 and the web 19, the end which is innermost during use of the slide, is closed by an integral upstanding flange (not shown), the opposite end of the channel being open.
  • drawer slide at the opposite side of the drawer 1 1 is a mirror image of the drawer slide described above.
  • a buffer 31 is constructed of rubber having a shore hardness of between 45 and 65, and preferably 50 in the arrangement illustrated.
  • One face of the buffer 31 has a recess 32 extending across its width.
  • the walls of the recess 32a, 32b and 32c are linear and in its depth dimension the recess has a truncated "V"-section.
  • the angles between walls 32a and 32b and walls 32b and 32c are 1 15° thus defining a "V'-angle (the angle between walls 32a and 32c at the point where they would converge) of 50°.
  • a cut out 33 is provided through the main body of the buffer 31 in the same direction as the direction of extension of the recess 32 and corresponds in size and shape to the upstanding flange 24.
  • An upper wall 34a and lower wall 34b of the buffer are convexly curved, mirroring the curves of tracks 16a and 16b respectively.
  • the buffer 31 is shown in position on the drawer slide ready for use, mounted on the flange 24 of the upper tracks which is outermost in use of the slide, the flange 24 being received in the cut out 33. Flexure of the buffer 31 is needed in order for it to be able to pass the free edge of track 16a and the uppermost edge of web 19 when mounting it on the flange 24, whereafter the buffer sits in the channel defined by tracks 16a and 16b and web 18 and is retained therein, with walls 34a and 34b in contact with tracks 16a and 16b respectively.
  • a similar buffer could be provided on the opposite flange 24 (at the innermost end of the slide) but in practice a relatively simple, conventional, buffer in the form of a rubber block having a concave face presented to the rollers 13 is sufficient since this flange 24 does not accept impact loadings in normal use.
  • a revised buffer 51 (as described below with reference to Figures 7, 8 and 9) operating on the same principle as the buffer 31 will be utilised in conjunction with the flange of the lower tracks 17.
  • rollers 13 and 14 In use, rollers 13 and 14 travel along their respective tracks 16 and 17 and at one end of their travel each front roller 13 impacts with the respective buffer 31 .
  • a resilient buffer is traditionally provided to absorb some of the impact energy by compression. However, most of the force is directed against the upstanding flange which tends to bend. The buffer is then no longer located along the path of the rollers but sticks out, away from the tracks. Subsequently, the roller may become wedged behind the buffer, or the buffer may detach itself from the flange.
  • the drawer slide of the current invention can withstand a much greater force without damage because the first points of impact of the roller 13 with the buffer 31 are on walls 32a and 32b.
  • the buffer distorts and becomes wedged between the roller 13 and the tracks 16a and 16b. This has the effect of directing a proportion of the impact force into tracks 16a and 16b orthogonally to the direction of travel of roller 13.
  • the construction of the drawer slide is such that much greater forces in this direction can be tolerated without deformation than forces applied to the relatively weak upstanding flange 24 in the direction of travel of the roller 13.
  • the tendency of the flange 24 to bend is further reduced because the buffer 31 is forcibly pressed into tracks 16a and 16b respectively and thus the buffer 31 and the flange 24 are held in position.
  • the walls 32a, 32c of the buffer 31 are each formed with a recess 35 at the point of impact of the respective roller 13, the actual position of the recesses 35 being determined by the diameter of the roller relative to the width of the opening 32 of the buffer.
  • the recesses 35 receive the periphery of the roller at impact and resist any tendency for the roller to skid on the surface of the buffer walls or for the roller or the buffer to be deflected laterally.
  • the rear shoulders 36 of the buffer are cut away to assist assembly of the buffer to the slide.
  • the buffer is formed with corresponding grooves 37.
  • the assembly described above can exceed level 4 of the BS 4875 (1985) Part 7 slam open/closed test.
  • the buffer 51 is constructed of rubber having a shore hardness of between 45 and 65, and preferably 50 in the arrangement illustrated.
  • the buffer 51 is generally in the form of a block of rubber which seats between the upper and lower tracks 17a, 17b and which is held against longitudinal movement relative to the slide 15 by the flange 24 upstanding between the tracks 1 7a, 17b.
  • the flange 24 is formed, as illustrated in Figure 1 , with strengthening ribs which extend around the right angle where the flange 24 merges with the web of the slide 15 interconnecting the tracks 17a, 1 7b, and the buffer 51 has a correspondingly shaped cut out 53 extending therethrough to receive the upstanding flange 24.
  • the upper and lower walls 54a, 54b of the buffer are grooved along their length, so as to be of concave cross-section and thus to seat on the convex tracks 17a, 17b respectively.
  • the front face of the buffer 51 presented in use to the roller 14 defines a recess 52 of truncated V-shape.
  • the upper and lower walls 52a, 52b of the recess 52 are inclined inwardly from the walls 54a, 54b and converge towards the centre line of the buffer.
  • the walls 52a, 52b terminate in a base wall 52c parallel to the flange 24.
  • the wall of the recess 52 includes an upstanding rib 55 of part-circular cross-section and of a radius of curvature such that it can be received within the groove of the concave roller 14.
  • the buffer 51 serves to cushion the impact of the roller 14 at the end of the relative travel of the roller 14 and the slide 15, and the impact loading is transmitted, at least in part, to the tracks 1 7a, 1 7b rather than being accepted exclusively by the flange 24.
  • the buffer 51 operates in a manner similar to the buffer 31 of the tracks 16 as disclosed above. Whereas there may be buffers at both ends of the tracks 16 of the slide 15, it is only necessary to provide a flange 24 and buffer 51 at one end of the tracks 1 7 where the rear roller 14 coacts with the end of the slide as the drawer is slammed open relative to the carcass of the cabinet. When the drawer is moved to its shut position the outermost roller 14 will not normally reach the end of the slide 15, and thus a flange 24 and buffer at that end of the track 17 is unnecessary for most applications.
  • recess 32 having rectilinear walls, it could be defined by a single curved wall or it may be defined by at least a pair of walls having different radii of curvature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drawers Of Furniture (AREA)

Abstract

On décrit une glissière pour extension constituée d'une bande d'acier laminé à froid, et formée, en section transversale, de manière à présenter des rails mutuellement disposés (16a, 16b; 17a, 17b) qui reçoivent et coopèrent avec des roulettes (13, 14) entraînées, pendant l'utilisation, par un tiroir ou un cabinet de réception d'un tiroir. La glissière comprend une section d'âme (18, 19) reliant solidairement lesdits rails, un moyen d'arrêt (24) situé à une extrémité d'une coulisse délimitée par ladite âme et ses rails respectifs, et un butoir (31, 51) associé audit moyen d'arrêt (24). Ledit butoir (31, 51) est confectionné avec un matériau résilient amortissant les chocs et comporte deux faces (34a, 34b; 54a, 54b) dont chacune est contiguë ou directement adjacente à un rail respectif. Le butoir comporte en outre un évidement (32, 52) qui s'ouvre aux roulettes et présente une taille et une forme telles que, pendant l'utilisation, une roulette peut s'y loger au moins partiellement jouxtant sa surface. Le butoir est ainsi déformé entre la roulette et les rails, si bien qu'au moins une de ses faces vient buter contre un rail respectif pour lui transférer une partie de l'énergie du mouvement relatif du glissement et de la roulette, amortissant ainsi tout impact sur le moyen d'arrêt.
PCT/GB1998/000842 1997-03-22 1998-03-20 Glissiere pour extension WO1998042232A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP98912594A EP1011383A2 (fr) 1997-03-22 1998-03-20 Glissiere pour extension
AU67377/98A AU6737798A (en) 1997-03-22 1998-03-20 Drawer slide

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9706014.9 1997-03-22
GBGB9706014.9A GB9706014D0 (en) 1997-03-22 1997-03-22 Drawer slide
GB9714932.2 1997-07-17
GBGB9714932.2A GB9714932D0 (en) 1997-07-17 1997-07-17 Drawer slide

Publications (2)

Publication Number Publication Date
WO1998042232A2 true WO1998042232A2 (fr) 1998-10-01
WO1998042232A3 WO1998042232A3 (fr) 1998-12-23

Family

ID=26311244

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/000842 WO1998042232A2 (fr) 1997-03-22 1998-03-20 Glissiere pour extension

Country Status (3)

Country Link
EP (1) EP1011383A2 (fr)
AU (1) AU6737798A (fr)
WO (1) WO1998042232A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009023910A1 (fr) * 2007-08-17 2009-02-26 Glidestore Freetrack Pty Ltd Étrier de butée pour rail de rayonnage mobile
CN100515272C (zh) * 2004-07-23 2009-07-22 川湖科技股份有限公司 滑轨的缓冲定位装置
US7758135B2 (en) 2005-10-11 2010-07-20 Harn Marketing Sdn. Bhd. Sliding guide rail system for a drawer
CN109923274A (zh) * 2016-10-28 2019-06-21 海蒂诗-海因策有限及两合公司 用于滑动元件的阻尼单元
US10694924B1 (en) 2019-03-14 2020-06-30 Whirlpool Corporation Dishwasher with guide rail

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995019724A1 (fr) 1994-01-25 1995-07-27 Metsec Plc Coulisse de tiroir

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2721231A1 (de) * 1977-05-11 1978-11-16 Schock & Co Gmbh Doppelauszugvorrichtung zur geradlinigen fuehrung eines hin- und herbewegbaren teils, beispielsweise einer schublade
DE9301344U1 (de) * 1993-02-01 1993-05-19 Alfit AG, Götzis Vollauszug für Schubladen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995019724A1 (fr) 1994-01-25 1995-07-27 Metsec Plc Coulisse de tiroir

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100515272C (zh) * 2004-07-23 2009-07-22 川湖科技股份有限公司 滑轨的缓冲定位装置
US7758135B2 (en) 2005-10-11 2010-07-20 Harn Marketing Sdn. Bhd. Sliding guide rail system for a drawer
US7762637B2 (en) 2005-10-11 2010-07-27 Harn Marketing Sdn. Bhd. Sliding guide rail system for a drawer
WO2009023910A1 (fr) * 2007-08-17 2009-02-26 Glidestore Freetrack Pty Ltd Étrier de butée pour rail de rayonnage mobile
CN101801238A (zh) * 2007-08-17 2010-08-11 滑动存储自由轨道有限公司 用于移动搁架轨道的末端止动支架
US8282056B2 (en) 2007-08-17 2012-10-09 Glidestore Freetrack Pty Ltd End stop bracket for a mobile shelving track
CN101801238B (zh) * 2007-08-17 2013-04-17 滑动存储自由轨道有限公司 用于移动搁架轨道的末端止动支架
CN109923274A (zh) * 2016-10-28 2019-06-21 海蒂诗-海因策有限及两合公司 用于滑动元件的阻尼单元
US10694924B1 (en) 2019-03-14 2020-06-30 Whirlpool Corporation Dishwasher with guide rail
US10813531B2 (en) 2019-03-14 2020-10-27 Whirlpool Corporation Dishwasher with guide rail

Also Published As

Publication number Publication date
AU6737798A (en) 1998-10-20
EP1011383A2 (fr) 2000-06-28
WO1998042232A3 (fr) 1998-12-23

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