EP0976346B1 - Joining device for the creation of load-bearing systems for workstations - Google Patents

Joining device for the creation of load-bearing systems for workstations Download PDF

Info

Publication number
EP0976346B1
EP0976346B1 EP99202450A EP99202450A EP0976346B1 EP 0976346 B1 EP0976346 B1 EP 0976346B1 EP 99202450 A EP99202450 A EP 99202450A EP 99202450 A EP99202450 A EP 99202450A EP 0976346 B1 EP0976346 B1 EP 0976346B1
Authority
EP
European Patent Office
Prior art keywords
attachment
tubular section
seat
headless screw
load
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
EP99202450A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0976346A2 (en
EP0976346A3 (en
Inventor
Carlo Cattaneo
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.)
Leonardo SRL
Original Assignee
Leonardo SRL
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 Leonardo SRL filed Critical Leonardo SRL
Publication of EP0976346A2 publication Critical patent/EP0976346A2/en
Publication of EP0976346A3 publication Critical patent/EP0976346A3/en
Application granted granted Critical
Publication of EP0976346B1 publication Critical patent/EP0976346B1/en
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
    • A47B47/00—Cabinets, racks or shelf units, characterised by features related to dismountability or building-up from elements
    • A47B47/0008—Three-dimensional corner connectors, the legs thereof being received within hollow, elongated frame members

Definitions

  • the present invention refers to certain interesting improvements made to joining devices of the type used for creating load-bearing systems for workstations, particularly but not exclusively for offices.
  • the structure created should be as solid and stable as possible over time, without risks of deterioration due to the materials used.
  • the general purpose of the present invention is to propose a joining device for making load-bearing systems for workstations that adequately meets all the requirements listed above, with particular reference to the flexibility of use, the production costs, which must be very contained, and the absolute rigidity over time of the structure obtained, also in the presence of relatively demanding stresses.
  • a joining device is indicated, as a whole, by 20, and is structurally made up of a body 21 from which at least one attachment 22 extends.
  • the body 21 and attachments 22 can be made of a single piece, for example of metal or plastic material having the necessary physical and mechanical characteristics for the purpose of the device.
  • each individual attachment 22 is made a seat 24 for a beam 25 which has the function of ensuring stable and durable fixing over time between a tubular section 23 and the attachment 22 itself.
  • Said beam 25 for example a metal beam and one having a preferably double-T-section is housed in its seat 24 so as to be movable (parallel to itself) between the lowered, non-operative, position of Figures 3, 6 and 8 and the raised, operative, position of Figures 5, 7 and 9.
  • Displacement of the beam 25 with respect to the complementary seat 24 is performed by means of a threaded headless adjustment screw 26, which is screwed through a corresponding threaded hole 27 made centrally in the beam 25 itself.
  • the headless screw 26 is provided with a discoidal base 28 housed in a corresponding cavity 29 ( Figures 3 to 5) located on the bottom of the seat 24.
  • Said cavity 29 is moreover preferably provided with a perimetral edge 30 for retention of the base 28, which snap-fits into the cavity 29 itself.
  • the adjustment of the headless screw 26 is performed using a polygonal spanner (not shown) which is inserted into a complementary seat 31 of the headless screw 26.
  • Access to the headless screw 26 is via an aligned hole 32 made in the tubular section 23.
  • the body 21 is preferably made in such a way as to enable fitting thereof to a tubular leg 33.
  • the fitting systems between the body 21 and the leg 33 may be of various kinds.
  • a nut 34 may be used, which is screwed directly on a threaded shaft 35 extending centrally from a disk 36 fixed to the leg 33 ( Figures 11 and 12); or else, a bolt 37 may be used which screws through a threaded hole 38 of a disk 39 fixed to the leg 33 ( Figures 13 and 14).
  • a tubular section 23 having a cross section complementary to that of the corresponding attachment 22 is fitted on the latter with the beam 25 in the position where it is retracted inside its complementary seat 24, as shown in Figures 3, 6 and 8 of the drawings.
  • the headless screw 26 can be turned so as to load the beam 25, so that it is translated upwards in the direction of the arrow 41 ( Figures 6 and 8).
  • the external flanges of the beam 25 engage on the inner surface 42 of the tubular section 23, so as to load, in the direction of the arrows 43 and 44, the attachment 22 so that it engages stably with the tubular section 23 at a large common perimetral surface 45, which occupies almost the entire cross section of the two assembled components 22, 23, except for the area where the beam 25 - adjusted by the headless screw 26 - exerts its thrust.
  • the tubular section 23 may be separated from the attachment 22 by unscrewing the-headless screw 26 so as to bring the beam 25 back into the lowered position of Figures 3, 6 and 8. It should be noted that in this position the beam 25 bears upon the base 28 of the headless screw 26, thus determining a stable positioning (end of travel) of the latter completely within the seat 24. In this way, the tubular section 23 may be freely slid off the attachment 22, given that any interference of the headless screw 26 in the path of the tubular section 23 is certainly excluded.
  • a stable fixing is thus achieved even over time, which, however, can be released by simply unscrewing the headless screw 26 and then bringing the beam 25 back into the original position shown in Figures 3, 6 and 8.

Landscapes

  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Wire Bonding (AREA)
  • Automatic Assembly (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Earth Drilling (AREA)
  • Connection Of Plates (AREA)
  • Furniture Connections (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP99202450A 1998-07-29 1999-07-26 Joining device for the creation of load-bearing systems for workstations Expired - Lifetime EP0976346B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI981756 1998-07-29
IT1998MI001756A IT1301959B1 (it) 1998-07-29 1998-07-29 Dispositivo di giunzione per la realizzazione di sistemi portantiper posti di lavoro

Publications (3)

Publication Number Publication Date
EP0976346A2 EP0976346A2 (en) 2000-02-02
EP0976346A3 EP0976346A3 (en) 2000-02-23
EP0976346B1 true EP0976346B1 (en) 2003-09-24

Family

ID=11380544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99202450A Expired - Lifetime EP0976346B1 (en) 1998-07-29 1999-07-26 Joining device for the creation of load-bearing systems for workstations

Country Status (6)

Country Link
EP (1) EP0976346B1 (da)
AT (1) ATE250366T1 (da)
DE (1) DE69911518T2 (da)
DK (1) DK0976346T3 (da)
ES (1) ES2207115T3 (da)
IT (1) IT1301959B1 (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20010355A1 (it) * 2001-02-22 2002-08-22 Leonardo Srl Dispositivo di giunzione per la realizzazione di una struttura a telaio tubolare per piani di appoggio
ITMI20010354A1 (it) * 2001-02-22 2002-08-22 Leonardo Srl Struttura a telaio tubolare per piani di appoggio
DE20105551U1 (de) * 2001-03-29 2002-08-08 Eisfink Max Maier GmbH & Co. KG, 71636 Ludwigsburg Knotenelement für Gestellkonstruktion
ITMI20131515A1 (it) 2013-09-13 2015-03-14 Leonardo Srl Sistema di giunzione per la realizzazione di una struttura a telaio tubolare con gambe per piani di appoggio
TWM601048U (zh) 2019-05-15 2020-09-11 第一傳動科技股份有限公司 易於組裝調整的電動桌腳架
CN112696415A (zh) * 2020-12-30 2021-04-23 育才控股集团股份有限公司 一种柜体连接件及包含该连接件的组合式柜体

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US281547A (en) 1883-07-17 Shackle for vehicle-springs
US3008741A (en) 1958-12-12 1961-11-14 Gen Electric Structural apparatus
US3087768A (en) * 1960-05-18 1963-04-30 Amco Eng Enclosure
FR1349424A (fr) * 1962-12-06 1964-01-17 Nouveau dispositif d'assemblage de tubes carrés
FR1434263A (fr) * 1965-02-15 1966-04-08 Mode de constitution de meubles en éléments démontables
US3638803A (en) 1969-06-20 1972-02-01 Daniel C Macmillan Modular construction frame
SE343928B (da) * 1970-11-10 1972-03-20 A Offenbroich
CH554495A (de) * 1971-10-07 1974-09-30 Alusuisse Zusammengesetztes gestell fuer moebel, mit horizontalen und vertikalen, durch verbindungselemente miteinander verbundenen streben.
IT1285997B1 (it) 1996-11-26 1998-06-26 Leonardo Srl Giunto perfezionato per la realizzazione di sistemi portanti per posti di lavoro

Also Published As

Publication number Publication date
DE69911518T2 (de) 2004-07-01
IT1301959B1 (it) 2000-07-20
ITMI981756A0 (it) 1998-07-29
ES2207115T3 (es) 2004-05-16
EP0976346A2 (en) 2000-02-02
DE69911518D1 (de) 2003-10-30
DK0976346T3 (da) 2003-12-29
EP0976346A3 (en) 2000-02-23
ITMI981756A1 (it) 2000-01-29
ATE250366T1 (de) 2003-10-15

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