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
  • A47B13/08—Table tops; Rims therefor
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
  • F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
  • F16B12/28—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for metal furniture parts
  • F16B12/30—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for metal furniture parts using threaded bolts
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
  • F16B12/40—Joints for furniture tubing
  • F16B12/42—Joints for furniture tubing connecting furniture tubing to non-tubular parts

Definitions

• THIS INVENTION relates to improvements in and relating to fdLxings, particularly suitable for the manufacture of furniture but not limited thereto and to articles of furniture utilizing such fixings, £n the -manufacture of furniture it is frequently necessary to provide a demountable fixing or connection between components or to provide a -mechanical fastening between components manufactured from similar or dissimilar materials.
• fixings have been cumbersome and unattractive in appearance.
• many past arrangements have not afforded a sufficiently rigid connection between components parts. De ountability is often required in order to ship furniture in knocked-down condition for maximum utilization of shipping space. In such instances it is desirable to form the joints so that they will not detract from the appearance of the finished product.
• this invention in one aspect resides broadly in a concealed fixing suitable for connecting a supporting member to a rail in abutting relationship therewith.
• said fixing including locating means on said rail and clamping means associated with said supporting member for securing said supporting member to said rail, said clamping means being operatively concealed in said supporting member.
• tiiere is formed at the abutment between the supporting member and the rail a pair of spaced apart zones or lines of contact wherein there is formed a stable two point anchorage between the parts.
• Sr the Sr
• the clamping means is disposed intermediate the zones of contact which are preferably formed as elongate abutments on either or both, of the members to be joined.
• the clamping means is a bolted connection between the
• the bolt may be tight- ened to clamp the components together.
• the bolt is concealed within the supporting member which may be a hollow section or a solid member provided with a recess in which the bolt may be concealed.
• the term concealed or operatively conceal ⁇ ed herein in reference to the clamping means is to be taken as a reference to concealment to the extent that the function or usefulness of the article is not hindered and the clamping means is not obstrusive to the extent that it is normally
• Access to the clamping means may be achieved in any preferred manner such as by providing a sufficiently large recess about the clamping means to enable access to be gained thereto or in the case of a hollow or tubular
• the fixing may be formed between a slat-like supporting member and a rail having a
• each such abutment could be constituted by a plurality of spaced contact points.
• this invention relates to an
• article of furniture utilizing the above mentioned fixing and including spaced side frames each having connector rails and there being provided a detachable supporting member interconnecting the rails.
• FIX3 1 is a.perspective view of a table made in accordance with the present invention
• .FIG 2 is an end view of the corner portion of the table illustrated in Fig 1;
• FIG 3 is a typical cross-sectional view showing the table top to leg frame joint
• FIG 4 is a perspective view of a chair frame made in accordance with the present invention.
• FIG 5 is a cut-away perspective view illustrating the fixing between a rail and a cross member
• FIG 6 is a cross-sectional view taken along the ' line 6-6 of Fig 5; and FIGS 7 and 8 illustrate further embodiments of the invention.
• the table top 11 is relieved at each corner adjacent the junction between the rail portion 14 and the legs 16 and the exposed edges 17 of the table top 11 are uniformly rounded.
• the outer edges of the central portions 15 are provided with respective elongate recesses 18 having an arcuate cross—section which substantially conforms to the external contour of the rail portion 14 so that the rail 14 can nest within the recess 18.
• the tubular rail member 14 is provided with, a plurality of tubular spigot members 19. at spaced locations along the rail 14. These spigot members 19 are adapted to engage within corresponding sockets 20 provided centrally along the recess 18 to ,_, operatively locate the table top 11 with, respect to the rails.
• the clamping means- for securing the table top 11 to the rail 14 in this instance is a bolt 21 which passes through the edge portion 22 of the table top to engage threadedly
• the head of the bolt 21 is concealed within a cavity 23 in the underside of the table top 11.
• the recess 18 is relieved at 24 along the central portion of the recess 18 so that the outer edge portions 25 thereof form abutments which initially contact the rail 14 leaving the relieved centre portion spaced clear thereof.
• connection so formed is maintained in use since the arcuate shape of the edge portions of the projections 15 are of solid form and able to withstand the engagement or clamping force applied through the connecting bolts 21.
• the spigot members 19 are of solid form and able to withstand the engagement or clamping force applied through the connecting bolts 21.
• the spigot member 19 could be in the form of a longitudinal strip of material extending along the central edge portion of the tube as
• the table top 11 could be formed as a framed assembly having a perimeter side frame, which
• the joint between the rail and a supporting member may be made according to this invention even though- the rail does not have a circular cross-sectional configur ⁇ ation.
• the joint could equally be made with, a square sectioned tube or a multi-sided tube such as one 10 having a hexagonal cross section and of course the rail could be constituted as a portion of a flat panel.
• the term rail used in the specification and claims is to be taken to a reference to a rigid member of any configuration.
• Th.e supporting member could be solid 15 in lieu of tubular if desired.
• FIGs 4 to 6 illustrate a demountable chair frame assembly utilizing t e fixings of the present invention.
• the chair frame assembly 30 includes a pair of side frames 31 interconnected by a central supporting member 32 and outer supporting members 33.
• An upholstered covering 30. tnot shown) having a backrest portion and a seat portion is adapted to be slung between the supporting members 32 and 33.
• each, side frame 31 includes a central tubular metal joiner section 34 supporting bar-like timber 5 extension portions which constitute the legs 34a,the seat rails 35 and the backrest rails 36.
• the supporting members 32 and 33 in this embodiment are formed from rectangular hollow section metal tubes which are arcuate in shape so as to more closely conform to body shapes to facilitate
• the upholstered covering extends between the seat and backrest rails and is provided with pockets which accomodate the supporting members 32 and 33.
• the ends of the members 33 are cut so as to conform to the shape of the rails 35 and 36, whereby the upper 0 and lower flanges 37 form spaced abutments 38 at opposite sides of the spaced through bolts 39 which pass through a plate 40 fixed into the interior of the members.33.
• the bolts 39 engage threadedly with inserts 41 secured into the timber rails.
• the inserts 41 may be provided with serrations or the like and suitably they are inserted into apertures with a glue such, as an epoxy resin.
• a glue such, as an epoxy resin.
• one flange of the rail is formed with pressed-out tabs 42 providing access openings
• a locating lug 45 is welded to the metal joiner section 34 and an insert 46 is secured to the inside of the member 32. Ths lug 45 is threaded at 47 to receive a countersunk.- screw 48, Th.e tapered recess
• 49 formed in the insert 46 is slightly oversize so that as the screw is tightened the edge of the screw adjacent the joiner 34 engages tbe recess 49 to urge the rail member 32 into engagement with the joiner 34,
• Fig 8 illustrates a further fixing according to this invention.
• the spaced abutments 50 are formed on the rail 51 and that the clamping bolt 52 is concealed within a channel formed at
• Access apertures 54 are provided to enable the bolt 52 to be tightened.
• a fixing according to this invention may be utilized for making joints between say a table top and its supporting legs or between say

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Furniture Connections (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=3769301

Family Applications (1)

Country Status (2)

Families Citing this family (2)

Citations (11)

Family Cites Families (7)

• 1982
  • 1982-12-20 WO PCT/AU1982/000214 patent/WO1983002136A1/en not_active Application Discontinuation
  • 1982-12-20 EP EP19830900008 patent/EP0097182A4/de not_active Withdrawn

Patent Citations (11)

Non-Patent Citations (1)

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