EP0251474B1 - Regalstruktur und deren Herstellungsverfahren - Google Patents

Regalstruktur und deren Herstellungsverfahren Download PDF

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Publication number
EP0251474B1
EP0251474B1 EP19870304513 EP87304513A EP0251474B1 EP 0251474 B1 EP0251474 B1 EP 0251474B1 EP 19870304513 EP19870304513 EP 19870304513 EP 87304513 A EP87304513 A EP 87304513A EP 0251474 B1 EP0251474 B1 EP 0251474B1
Authority
EP
European Patent Office
Prior art keywords
shelf
body member
shelf body
underside
stiffening member
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
Application number
EP19870304513
Other languages
English (en)
French (fr)
Other versions
EP0251474A3 (en
EP0251474A2 (de
Inventor
John Barry Golby
Henry Tebbutt Moss
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.)
Paul Fabrications Ltd
Original Assignee
Paul Fabrications Ltd
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 Paul Fabrications Ltd filed Critical Paul Fabrications Ltd
Publication of EP0251474A2 publication Critical patent/EP0251474A2/de
Publication of EP0251474A3 publication Critical patent/EP0251474A3/en
Application granted granted Critical
Publication of EP0251474B1 publication Critical patent/EP0251474B1/de
Expired 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
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/02—Shelves
    • A47B96/021—Structural features of shelf bases

Definitions

  • This invention relates to techniques for for fabricating metal structures, and is concerned specifically with the relatively narrow field of fabricated shelf structures.
  • the structures and method of the present invention are applicable particularly, but not exclusively to shelving for use in supermarkets.
  • the prior art includes many proposals for systems of mechanically securing together structures, and techniques for welding, together with details of how such welds may be employed for securing together various mechanical structures.
  • the specification contains no guidance as to how such techniques can be applied to structural members such as shelves formed of relatively thin metallic material and having a preformed plastics coating or the like thereon, so as to preserve a blemish-free appearance on the upper and exposed plastics surface thereof.
  • the disclosure contains little if anything to suggest how the technique could be applied for securing together a relatively lightweight pressed metal shelf structure and a similarly constructed stiffener, these two structures being formed in metal of comparable thicknesses, and the joint so-formed not having awkwardly shaped zones and recesses likely to form food traps, as would occur in the embodiments shown in the latter of the drawings in this prior specification.
  • the prior art also includes disclosures relating to the use of welding techniques for composite structures.
  • GB1267943 discloses in Figs 9 to 17, a wide variety of methods of attaching structures to a composite assembly of urethane foam and metal walls, such structures as hinges, refrigeration equipment, lifting rings etc. These techniques include stud welding. There is no disclosure as to how these techniques can be applied to the specific problem of strongly structurally securing together shelves and their stiffeners while maintaining ablemishfree surface on the exposed plastic upper coating on the shelf itself.
  • the prior art proposes to weld a stud or the like to a composite panel having urethane foam on one side, it cannot be determined whether the welding operation will produce substantial melting and distortion of the urethane foam. However, whether such occurs is of little significance, since it is within the interior structure of the composite wall of a refrigeration vessel.
  • stud welding can be used to produce a blemish-free result for securing structures to composite panels.
  • the composite panels concerned comprise a plastics core with metal cover sheets.
  • a polyethylene core is 3 mm thick and metal cladding on each side is of 0.5 mm thickness.
  • the stud is welded to one of these extremely lightweight aluminium/magnesium cover sheets, and the joint so produced is stated to have a certain adequate strength.
  • this disclosure is of little relevance to the heavy duty shelving situation with which the present invention is concerned, as indicated above.
  • the plastics material is located within the sandwich of the two metal sheets and although the latter may be blemish-free even when illuminated by inclined lighting, it can be expected that the plastics material itself within the core of the sandwich is most unlikely to be blemish-free, which is a pre-requisite for the plastics material on the external and upper shelf surface of a product according to the present invention.
  • the stiffeners themselves directly rest on the shelf supports.
  • the shelves merely rest on the stiffeners and serve to provide an area on which a load can rest.
  • the shelves do not co-operate with the stiffeners to form a unified structural assembly.
  • the specification contains a full disclosure of the problems of obtaining satisfactory weld strength in the high load situation with which the present invention is concerned.
  • An object of the present invention is to provide a shelf structure and a method of making same offering improvements in relation to one or more of the matters discussed above, or generally.
  • the invention also provides such a method and article not limited by all features of any particular claim herein, but comprising any novel feature or any novel combination of features disclosed herein.
  • a shelf structure 10 for use in a supermarket.
  • the shelf is a fabrication formed from mild steel and, in this embodiment, is of length approximately 1200 millimetres and of width approximately 400 millimetres and has a load bearing capacity in excess of 300 kilograms.
  • the shelf is formed with downwardly turned end flanges 12, one at each end of the shelf and extending across the full width of the shelf, for load-bearing engagement with suitable shelf support brackets (not shown).
  • Shelf 10 comprises a shelf body member 14 having an upper load support surface 16.
  • Body member 14 has side flanges 18 formed with inturned edges 20.
  • the stiffening members 22, 24 are of V-section.
  • the stiffening members 26, 28 are of so-called 'top hat' section ie of rectangular channel section.
  • the stiffening members have flanges 30, 32 extending lengthwise of the stiffening member and laterally outwardly from its edges and formed with spaced apertures in which fasteners 34 are affixed.
  • the hollow section stiffening members 22 to 28 are securely held in position by fasteners 34 against the substantial bending loads imposed thereon by merchandise carried on the shelves.
  • Shelf body member 10 is formed from a length of mild steel section having a coating of a plastics material on its upper surface 16 and on the outer surfaces of side flanges 18 and inturned edges 20.
  • the inner surfaces of shelf body member 14 are coated with a weldable colour wash.
  • Steel sections coated in this manner are obtainable from British Steel under the trade mark Stelvetite.
  • Many other plastic coated steel and other materials may well be suitable for the purpose of the invention.
  • As regards the structure of the body member a variety of ferrous or other weldable materials may be employed.
  • the plastics material the main criterion is the possession of a durable wipe-clean surface which meets hygiene requirements and adheres satisfactorily to the material of the body member. Possible examples are PVC, polypropylene, and many other synthetic polymers and copolymers.
  • Stiffening members 22, 24, 26 and 28 are likewise plastic coated on their outer surfaces in the same manner as the shelf body member 14, and are mild steel sections.
  • Fasteners 34 are in fact stud rivets which are electrically resistance welded to the underside 36 of the pre-coated body member 14 at spaced intervals.
  • electrical connections to the shelf body member, for welding purposes are made solely to the underside 36 or the underside and the end 38 or side edges 40 of the body member.
  • the conditions employed with respect to the time and temperature required for achieving a satisfactory weld are chosen so as not to significantly damage the plastic upper surface finish of the shelf body member 14. We have found that it is possible to achieve this desirable result without impairing the mechanical strength of the resulting weld joint.
  • 'stud' may be used instead of 'stud rivet' since any suitable form of stud may be employed.

Landscapes

  • Connection Of Plates (AREA)
  • Assembled Shelves (AREA)

Claims (15)

  1. Verfahren zum Herstellen eines lastaufnehmenden Brettaufbaus (10), das aufweist: Bereitstellen eines Brettkörperelementes (14) mit einer oberen Lastträgerfläche (16); Bereitstellen eines Versteifungselementes (22, 24; 26, 28) für das Brettkörperelement; und Befestigen des Versteifungselementes an der Unterseite des Brettkörperelementes durch ein Verfahren, welches einen Schweiß-Schritt aufweist, so daß das Versteifungselement sich in Längsrichtung des Körperelementes erstreckt; wobei die in dem Schweiß-Schritt eingesetzten Bedingungen bezüglich Schweißzeit und -temperatur so beschaffen sind, daß die oberflächenschicht des Kunststoffmaterials auf der lastaufnehmenden Oberfläche des Brettkörperelementes nicht wesentlich beschädigt wird; und Bereitstellen einer Lastübertragungseinrichtung (12) an jedem Ende des Brettaufbaus zum lasttragenden Eingriff mit der Bretträgereinrichtung, im Gebrauch; wobei das Brettkörperelement auf seiner oberen Lastträgerfläche mit einem sauberwischbaren Kunststoffmaterial vorbeschichtet ist; dadurch gekennzeichnet, daß der Schritt des Schweißens das elektrische Schweißen von Bolzennieten (34) an die Unterseite des vorbeschichteten Brettkörperelementes (14) in beabstandeten Intervallen aufweist; wobei die elektrischen Verbindungen an dem Brettkörperelement zu Schweißzwecken ausschließlich an der Unterseite des Brettkörperelementes oder der Unterseite und deren Kanten gemacht sind; wobei das Verfahren ferner aufweist den Schritt des Bildens von Öffnungen in dem Versteifungselement in Intervallen, um die Bolzen aufzunehmen, und die Montage des mit Öffnungen versehenen Versteifungselementes auf den Bolzen; das Ausbilden der Enden jedes Bolzens, um einen glatten Kopf (42) darauf herzustellen, der gewölbt ist oder horizontal oder flach oder konkav; und die Lastübertragungseinrichtung (12) auf dem Brettkörperelement (14) vorgesehen ist, wodurch die Bolzen dazu dienen, wesentliche Lasten zwischen dem Brettkörperelement und dem Versteifungselement beim Gebrauch zu übertragen.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Versteifungselement (22, 24; 26, 28) von hohlem Querschnitt ist.
  3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß der hohle Querschnitt ein Hutquerschnitt ist.
  4. Verfahren nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß das Versteifungselement (22, 24; 26, 28) selbst mit einem Kunststoffmaterial vorbeschichtet ist.
  5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Bolzennieten (34) massive Bolzennieten sind.
  6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Schritt des Bildens der Enden der Bolzen das Ausbilden der Bolzen mit gewölbten oder leicht gewölbten Köpfen (42) aufweist.
  7. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Brettelement (14) nur auf seiner oberen Lastträgerfläche vorbeschichtet ist, wobei das Verfahren den weiteren Schritt der Oberflächenbehandlung der Unterseite (36) des Brettelementes nach der Montage des Versteifungselementes aufweist.
  8. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Brettelement (14) längserstreckte einstückige Seitenflansche (18) aufweist, die kunststoffbeschichtet sind.
  9. Brettaufbau (10) mit einem Brettkörperelement (14) mit einer oberen Lastträgerfläche und einem Versteifungselement (22, 24; 26, 28), das durch ein Verfahren, welches einen Schweiß-Schritt aufweist, an der Unterseite des Brettkörperelementes befestigt ist und sich in dessen Längsrichtung erstreckt, wobei eine Lastübertragungseinrichtung (12) an jedem Ende des Brettaufbaus zum lasttragenden Eingriff mit der Bretträgereinrichtung im Gebrauch vorgesehen ist; und das Brettelement auf seiner oberen Lastträgerfläche (16) mit einem sauber-wischbaren Kunststoffmaterial beschichtet ist, dadurch gekennzeichnet, daß das Versteifungselement an der Unterseite des Brettkörperelementes durch den Schweiß-Schritt befestigt ist, bei dem die Bolzennieten (34) elektrisch an der Unterseite des Brettkörperelementes in beabstandeten Intervallen angeschweißt sind und sich durch Öffnungen hindurch erstrecken, die in dem Versteifungselement gebildet sind, wobei die Enden der Bolzen so gebildet sind, daß sie einen glatten Kopf bereitstellen und die Lastübertragungseinrichtung (12) auf dem Brettkörperelement vorgesehen ist, wodurch die Bolzennieten dazu dienen, wesentliche Lasten zwischen dem Brettkörperelement und dem Versteifungselement im Gebrauch zu übertragen.
  10. Brettaufbau (10) nach Anspruch 9, dadurch gekennzeichnet, daß das Versteifungselement (22, 24; 26, 28) von hohlem Querschnitt ist.
  11. Brettaufbau (10) nach Anspruch 10, dadurch gekennzeichnet, daß der hohle Querschnitt ein Hutquerschnitt ist.
  12. Brettaufbau (10) nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, daß das Versteifungselement (22, 24; 26, 28) selbst mit einem Kunststoffmaterial vorbeschichtet ist.
  13. Brettaufbau (10) nach einem der Ansprüche 9 bis 12, dadurch gekennzeichnet, daß die Bolzennieten (34) massive Bolzennieten sind.
  14. Brettaufbau (10) nach einem der Ansprüche 9 bis 13, dadurch gekennzeichnet, daß die Bolzen mit gewölbten oder leicht gewölbten Köpfen (42) ausgebildet sind.
  15. Brettaufbau (10) nach einem der Ansprüche 9 bis 14, dadurch gekennzeichnet, daß das Brettelement (14) längserstreckte einstückige Seitenflansche (18) aufweist, die kunststoffbeschichtet sind.
EP19870304513 1986-06-28 1987-05-21 Regalstruktur und deren Herstellungsverfahren Expired EP0251474B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8615876 1986-06-28
GB8615876A GB2191968B (en) 1986-06-28 1986-06-28 Shelf structure and method of making same

Publications (3)

Publication Number Publication Date
EP0251474A2 EP0251474A2 (de) 1988-01-07
EP0251474A3 EP0251474A3 (en) 1988-09-14
EP0251474B1 true EP0251474B1 (de) 1992-01-29

Family

ID=10600294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870304513 Expired EP0251474B1 (de) 1986-06-28 1987-05-21 Regalstruktur und deren Herstellungsverfahren

Country Status (3)

Country Link
EP (1) EP0251474B1 (de)
DE (1) DE3776429D1 (de)
GB (1) GB2191968B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013005337U1 (de) * 2013-06-12 2014-09-15 Tegometall International Ag Regalfachboden

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20130414A1 (it) * 2013-07-31 2015-02-01 Cefla Coop Piani rinforzati per scaffalature metalliche, atti a sostenere anteriormente delle etichette elettroniche e/od altre periferiche e relativo procedimento di fabbricazione
DE102018108923A1 (de) * 2018-04-16 2019-10-17 Wanzl Metallwarenfabrik Gesellschaft Mit Beschränkter Haftung Draht-Etage für einen Verkaufstisch oder ein Regalsystem

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268849A (en) * 1939-09-30 1942-01-06 Bell Aircraft Corp Method of uniting materials
CH339300A (fr) * 1955-11-17 1959-06-30 Phenix Works Sa Procédé pour la soudure d'un petit élément métallique sur l'une des faces d'une tôle métallique dont l'autre face a été préalablement recouverte d'une matière diélectrique, et dispositif pour la mise en oeuvre de ce procédé
GB960073A (en) * 1961-10-02 1964-06-10 Edward Dash Stud and method of welding same
DE1905951A1 (de) * 1968-05-29 1970-01-15 Litewate Transp Equipment Corp Verfahren und Vorrichtung zum Formpressen von verstaerkten Kunststoffgegenstaenden
DE2002172A1 (de) * 1970-01-19 1971-07-29 Hilti Ag Kleinmaterial wie Schellen,OEsen u.dgl. zur Befestigung auf metallischem Grundmaterial
AT332595B (de) * 1974-01-19 1976-10-11 Bohnacker Tegometall Verkaufsgestell mit versteiften blechfachboden
DE2656130A1 (de) * 1976-12-10 1978-06-15 Tucker Metallwaren Gmbh Verfahren zur befestigung eines gegenstandes an einer auflage sowie befestigungselement zur durchfuehrung des verfahrens
CH646744A5 (de) * 1979-11-29 1984-12-14 Alusuisse Befestigungsbolzen zum einseitigen befestigen an metallplatten.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013005337U1 (de) * 2013-06-12 2014-09-15 Tegometall International Ag Regalfachboden

Also Published As

Publication number Publication date
GB2191968B (en) 1990-01-31
EP0251474A3 (en) 1988-09-14
EP0251474A2 (de) 1988-01-07
GB2191968A (en) 1987-12-31
GB8615876D0 (en) 1986-08-06
DE3776429D1 (de) 1992-03-12

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