EP1279353B1 - Joint assembly for connecting a leg to a work surface - Google Patents

Joint assembly for connecting a leg to a work surface Download PDF

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Publication number
EP1279353B1
EP1279353B1 EP02077925A EP02077925A EP1279353B1 EP 1279353 B1 EP1279353 B1 EP 1279353B1 EP 02077925 A EP02077925 A EP 02077925A EP 02077925 A EP02077925 A EP 02077925A EP 1279353 B1 EP1279353 B1 EP 1279353B1
Authority
EP
European Patent Office
Prior art keywords
leg
sleeve
joint assembly
expandable body
notch
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
EP02077925A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1279353A1 (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 EP1279353A1 publication Critical patent/EP1279353A1/en
Application granted granted Critical
Publication of EP1279353B1 publication Critical patent/EP1279353B1/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
    • A47B13/00—Details of tables or desks
    • A47B13/02—Underframes
    • A47B13/021—Fastening devices of the feet or legs

Definitions

  • the present invention refers to a joint assembly for connecting a leg to a table .
  • a joint assembly for connecting a leg to a table according to the closest state of the art is disclosed in EP 0 685 186 A .
  • Document FR 2 443 607 A discloses a device for connecting by expansion two tubular elements with each other, wherein an expansion means is inserted at its opposite ends in the two tubular elements and expanded inside them.
  • legs are preferably assembled to the work surface at the time of final installation where the user wants it.
  • Multifunctional connectors can be used both to connect the legs of tables to surfaces or to structures and to join two surfaces together.
  • Connectors can possibly be dismountable to allow the at least partial reuse of the individual elements in the realisation of new configurations of tables or of support structures, or more simply to allow the subsequent storage thereof.
  • Connectors for legs must first of all guarantee a connection which is stable through time to obtain a table or a structure which is solid without the risk of deterioration of the materials used.
  • joints for legs also allow end users to rapidly carry out connections with the help of common tools, such as a screwdriver or an Allen key.
  • Dismountable joints which are currently available do not allow all of the listed factors to be optimised. Above all they have great difficulty in combining simplicity of construction and use with the requirements of strength, in any case losing out on the aesthetic aspect.
  • the general purpose of the present invention is that of overcoming the aforementioned drawbacks of the prior art in an extremely cost-effective, simple and particularly functional manner.
  • Another purpose is that of realising a joint assembly for connecting a leg to a table which achieves an excellent aesthetic result.
  • the joint assembly 10 comprises a sleeve 12 for interaction with a leg 13,which extends from an attachment 14 in a perpendicular direction with respect to the attachment itself and into which an expandable body 15 is inserted.
  • the expandable body 15, shown in detail in figures 5-9 comprises an outer wall 16, for example cylindrical, equipped with a portion which is easy to deform, which in the figures consists of a notch 17 extending for the whole height of said outer wall 16.
  • a notch 17 can be realised in the outer wall 16 according to generic inclinations or can be replaced by another element which gives the wall elasticity.
  • the expandable body 15 is moreover equipped with a threaded seat 18 for a manoeuvring pin 19 through which the expansion is realised, according to that which is shown schematically in figures 8 and 9 .
  • the manoeuvring pin 19 at one end has a hexagonal seat 20 for the intervention of a tool 21 and at the point terminates with a frustum-of-cone guide surface 22.
  • the expandable body has guide surfaces 23 of the deformation to a shape which matches the frustum-of-cone surface 22 of the manoeuvring pin 19.
  • the expandable body 15, in the proposed embodiments can be used in combination with joints 10 of different types and characteristics, some embodiments of which shall be described hereafter.
  • a joint assembly 10 is shown which can be used for the connection of the leg 13 to a table 24 or else also as a joint between individual parts 24a and 24b of the surface.
  • the attachment 14 to a table consists of a triangular-shaped plate 14', upon the sides of which holes 25 are realised, according to a design which allows it to be used in both of the represented assembly situations, given that the tables 24 are equipped at the corners with multifunctional standard prepunching.
  • the sleeve 12 has a substantially cylindrical inner surface 26 for coupling with the expandable body 15 and an outer surface 27, also substantially cylindrical and which can be coupled with tubular legs 13 having a matching cross-section.
  • the sleeve 12 is also equipped with notches 28 parallel to an axis 29 of the sleeve 12 itself, and more precisely two partial notches 28' and two notches extending for the whole height of the sleeve 28'', arranged facing one another in pairs in diametrically opposite positions.
  • the extended notches 28'' give the sleeve 12 the necessary elasticity to be forced against the inner surface of the leg 13, as shown for example in figure 2 .
  • the partial notches 28' as well as contributing to giving elasticity, above all allow the tool 21 to access the manoeuvring pin 19. For aesthetic reasons access to the pin 19 is always carried out from a zone hidden from view when the table is assembled, as shown in figures 1 and 3 .
  • the tubular leg 13, having an inner diameter such as to fitted onto the sleeve 12, is equipped with a hole, not shown, for the intervention of the tool 21 from the outside.
  • joint assemblies 10 for mounting a tubular leg to a table are shown, where the attachment 14 to the table consists of a punched plate 14'' of a small size, for example L-shaped, which can be mounted flush with the surface in a seat 31 formed here.
  • the sleeve 12 is preferably closed by a base wall 32 equipped with a plurality of holes 33 for attachment to the table 24 through screws.
  • the sleeves 12 can have a circular cross-section just as they can for example have a square section ( figures 10 and 12 ).
  • attachment 14 to a table can consist of an expansion tang 114 for jointing to tubular profiles 34, which constitute a frame support structure for the table 24.
  • Figures 13-16 show joint assemblies 10 which form a terminal element of the frame support structure which can be of different shapes.
  • the attachment partially in view, allows the attachment of the legs 13 in a protruding position with respect to the table 24.
  • the described embodiments of the expandable connector 10, refer to sleeves 12 inserted and forced by expansion inside the hollow end of the tubular legs 13.
  • the joint assembly for connecting a leg to a table are preferably made out of die-cast aluminium.
  • the expandable body 15 is inserted into the sleeve 12 ( figure 2 ), taking care to make the manoeuvring pin 19 fit into the notches 28 and the holes 36 arranged for intervention by the tool 21.
  • a joint assembly for a leg, object of the present invention is indeed advantageously realised through simple shapes, which allow fast treatment cycles to be carried out.
  • a joint assembly according to the preferred embodiment with a base wall, also ensures excellent rigidity which is particularly useful in jointing many pieces to form the table.
  • the outer appearance is not at all penalised by the possible assembly configurations.

Landscapes

  • Furniture Connections (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Connection Of Plates (AREA)
  • Legs For Furniture In General (AREA)
EP02077925A 2001-07-25 2002-07-18 Joint assembly for connecting a leg to a work surface Expired - Lifetime EP1279353B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2001MI001601A ITMI20011601A1 (it) 2001-07-25 2001-07-25 Connettore espandibile per gamba con attaco adattabile ad un piano diappoggio
ITMI20011601 2001-07-25

Publications (2)

Publication Number Publication Date
EP1279353A1 EP1279353A1 (en) 2003-01-29
EP1279353B1 true EP1279353B1 (en) 2009-09-09

Family

ID=11448144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02077925A Expired - Lifetime EP1279353B1 (en) 2001-07-25 2002-07-18 Joint assembly for connecting a leg to a work surface

Country Status (7)

Country Link
EP (1) EP1279353B1 (zh)
CN (1) CN100434015C (zh)
AT (1) ATE442066T1 (zh)
DE (1) DE60233617D1 (zh)
DK (1) DK1279353T3 (zh)
ES (1) ES2333583T3 (zh)
IT (1) ITMI20011601A1 (zh)

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
GB2441966B (en) * 2006-09-20 2011-06-15 Nelson Cho Detachable supporting framework
DE102010047502B4 (de) * 2010-10-05 2012-06-14 Thonet Gmbh Tischbein mit einem Verbindungssystem zum Verbinden von Tischplatten
ITMI20120072A1 (it) * 2012-01-24 2013-07-25 Leonardo Srl Dispositivo nascosto per fissare una gamba ad un piano di un mobile
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
IT201700105625A1 (it) * 2017-09-21 2019-03-21 Leonardo Srl Sistema di giunzione tra un piano di supporto ed un elemento tubolare

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7811946A (nl) 1978-12-07 1980-06-10 Auping Bv Verbindingselement van het expandeerbare type.
IT7922952V0 (it) * 1979-10-24 1979-10-24 Steiner Spa Karl Raccordo ad espansione per elementi tubolari provvisto di mezzi di fissaggio per traverse estendentisi radialmente rispetto agli elementi tubolari.
IT220012Z2 (it) * 1990-07-16 1993-06-03 Camar Spa Giunto perfezionato per il collegamento stabile di una gamba ad un piano di un tavolo
DE4417341A1 (de) 1994-05-18 1995-11-23 Stoll Kg Christof Klemmbefestigung für ein Rohr, insbesondere einer Standsäule an einer Tischplatte
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
ES2333583T3 (es) 2010-02-24
CN1399078A (zh) 2003-02-26
ITMI20011601A1 (it) 2003-01-25
ITMI20011601A0 (it) 2001-07-25
DK1279353T3 (da) 2010-01-04
DE60233617D1 (de) 2009-10-22
CN100434015C (zh) 2008-11-19
ATE442066T1 (de) 2009-09-15
EP1279353A1 (en) 2003-01-29

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