US3753583A - Expanding-type fastening device for detachable interconnection of hollow structural details - Google Patents

Expanding-type fastening device for detachable interconnection of hollow structural details Download PDF

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Publication number
US3753583A
US3753583A US00197056A US3753583DA US3753583A US 3753583 A US3753583 A US 3753583A US 00197056 A US00197056 A US 00197056A US 3753583D A US3753583D A US 3753583DA US 3753583 A US3753583 A US 3753583A
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United States
Prior art keywords
expanding
core
fastening device
segments
another
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
US00197056A
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English (en)
Inventor
A Offenbroich
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Individual
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Individual
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Filing date
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Publication of US3753583A publication Critical patent/US3753583A/en
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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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
    • E04B1/5831—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially rectangular form
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/96—Corner joints or edge joints for windows, doors, or the like frames or wings
    • E06B3/964—Corner joints or edge joints for windows, doors, or the like frames or wings using separate connection pieces, e.g. T-connection pieces
    • E06B3/968—Corner joints or edge joints for windows, doors, or the like frames or wings using separate connection pieces, e.g. T-connection pieces characterised by the way the connecting pieces are fixed in or on the frame members
    • E06B3/972—Corner joints or edge joints for windows, doors, or the like frames or wings using separate connection pieces, e.g. T-connection pieces characterised by the way the connecting pieces are fixed in or on the frame members by increasing the cross-section of the connecting pieces, e.g. by expanding the connecting pieces with wedges
    • 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
    • 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
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
    • F16B7/0446—Clamping or clipping connections for rods or tubes being in angled relationship for tubes using the innerside thereof
    • 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
    • A47B2220/00—General furniture construction, e.g. fittings
    • A47B2220/11—Tripod parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2406—Connection nodes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
    • E04B2001/5856—Connections for building structures in general of bar-shaped building elements with a closed cross-section using the innerside thereof
    • 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
    • F16B12/44—Leg joints; Corner joints
    • F16B2012/446—Leg joints; Corner joints with three-dimensional corner element, the legs thereof being inserted in hollow frame members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/53—Split end with laterally movable opposed portions
    • Y10T403/535—Split end with laterally movable opposed portions with separate force-applying means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/55—Member ends joined by inserted section
    • Y10T403/557—Expansible section

Definitions

  • An expanding-type fastening device for detachable interconnection of hollow structural details comprises an expansible core made of rigid material, such as metal, and a coating of elastic material, such as plastic, fixedly arranged on the core.
  • FIG. I PRIOR ART EXPANDING-TYPE FASTENING DEVICE FOR DETACHABLE INTERCONNECTION OF HOLLOW STRUCTURAL DETAILS
  • This invention relates to an expanding-type fastening device for detachable interconnection of hollow structural details, and said device comprises expanding members which are adapted to nest in each of the structural details and which can be expanded by means of at least one expanding member operable from outside.
  • a prior art expanding fastening device of the type outlined in the foregoing is intended for detachable interconnection of pipes or tubes of quadrangular cross section, for which reason the expanding members are likewise of quadrangular cross section, diagonally slotted and have expanding elements in the form of cooperating screws which are accessible through apertures in the tubes which are preferably of aluminium.
  • a non-slit intermediary member Arranged between the expanding members is a non-slit intermediary member in the shape of a cube which re mains visible after the device has been mounted.
  • the device is made in an integral piece of metal, preferably an aluminium alloy.
  • the device in combination consists of a core which is made of a rigid material, such as metal, and the expanding member elements of which are slotted, and a coating of elastic material, such as plastic, fixedly arranged thereon.
  • the surfaces of the device need not be very thoroughly machined and the core may advantageously consist of several simple metal details which need not even be mechanically interconnected but can be held together with the aid of the plastic coating subsequently applied, which coating is of optional thickness within certain limits.
  • the device is then ready for use without further machining. This considerably reduces the cost of manufacture, and the appearance of the device will be equally pleasing or even more pleasing than before and has a much more resistant surface than the earlier finely machined and often painted metal surface.
  • the fastening device according to the present invention is considerably cheaper in manufacture than the previously known devices, which is a very important and decisive factor.
  • the elastic coating will provide a distribution of forces between the expanding member and the tube throughout the engagement surface and also a better nesting engagement of the parts with smaller expansion forces owing to the increased friction; the engagement can be further improved by arrangement of minor projections at the inner side of the tube. Any risk of visible markings on the outer side of the tube is eliminated.
  • Another important functional advantage is that the elastic coating tends to return the expanding member to the initial position after finished expansion. It should also be mentioned that the otherwise dirt-collecting diagonal slot in the expanding members can be fully covered by the coating, which in most cases is caused to cover all of the surfaces of the core.
  • FIG. 1 is a perspective view of a prior art expandingtype fastening device
  • FIG. 2 is a side view of an expanding-type fastening device according to the present invention.
  • FIG. 3 is a section on line III-III in FIG. 2.
  • FIG. 1 by way of comparison shows a prior art fastening device I intended for detachable interconnection of pipes or tubes 2 of quadrangular cross section.
  • This device incorporates diagonally slotted expanding members 3 and an interconnecting non-slotted intermediary member 4 in the form of a cube.
  • the expanding members can be expanded with the aid of cooperating screws 5 which are accessible through apertures 6 in the tubes 2.
  • This device suffers from all of the drawbacks outlined in the foregoing.
  • a core consisting of simple welded iron parts can be provided (as shown in FIGS. 2 and 3) with a coating of an elastic material, such as polypropylene or nylon.
  • the fastening device shown in FIGS. 2 and 3 thus comprises a core 7 the horizontal portion of which (see FIG. 2) is formed by two parallel adjoining iron rods of semi-circular section and the vertical portion of which likewise is formed of semi-circular iron rods 7a, 7b which are welded at 8 to the two first iron rods so that these will also be welded together.
  • the resulting dividing cut between the iron rods will be diagonally located in relation to a tube 2' of quadrangular section, which is indicated by dash-anddot lines.
  • the core 7 thus formed is provided by a simple onestep plastic casting operation with an elastic coating 8 which is fixedly arranged thereon and preferably completely covers the core and which also constitutes the cube 4' separating the expanding members.
  • the expanding members of the expanding device can be given a square cross sectional shape by reason of the coating, but it is more suitable to cut off the corners as shown in FIG. 3 in order to provide room for the contemplated expansion of the elastic coating material and in order that the layer covering the dividing cut shall not be too thick to prevent spreading each expanding memher.
  • expansion of the expanding member is effected with the aid of screws which cooperate with one another at the dividing cut.
  • FIGS. 2 and 3 should be considered merely as an example of the invention and that several modifications are conceivable within the scope of the appended claim.
  • the principle of the invention can be exploited in fastening devices for detachable interconnection of structural details formed with holes of any cross sectional shape whatever, and the device need not be expanded with the aid of cooperating screws.
  • the parts forming the core need not be interconnected as the coating can keep the parts together to the extent required, and the cube-shaped intermediary member 4' illustrated may be dispensed with in many cases.
  • the parts forming the core may be simple bent sheet metal details or a cast body, for example of the appearance illustrated in FIG. 1.
  • an expanding-type fastening device for detachably interconnecting tubular structural elements, said fastening device comprising an elongated core member formed from a rigid material such as metal and adapted to be telescopingly received in one of said structural elements, a longitudinally extending slot formed in and dividing said core member into segments along at least a substantial portion of the length thereof, at least one expansion member engaging said core and operable from outside the tubular structure element for moving said segments relative to one another to expand said core, and an elongated sleeve of elastic material such as plastic fixedly mounted on and substantially covering the outer peripheral surface of said core and bridging said slot, whereby upon operation of said expansion member to move said segments to an expanded position spaced from one another within a tubular structural element said coating will be expanded into tight frictional contact within the inner surface of the tubular structural element, said sleeve being dimensioned to apply a radially compressive force to said core tending to move said segments toward one another from their

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
US00197056A 1970-11-10 1971-11-09 Expanding-type fastening device for detachable interconnection of hollow structural details Expired - Lifetime US3753583A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15146/70A SE343928B (fr) 1970-11-10 1970-11-10

Publications (1)

Publication Number Publication Date
US3753583A true US3753583A (en) 1973-08-21

Family

ID=20300222

Family Applications (1)

Application Number Title Priority Date Filing Date
US00197056A Expired - Lifetime US3753583A (en) 1970-11-10 1971-11-09 Expanding-type fastening device for detachable interconnection of hollow structural details

Country Status (9)

Country Link
US (1) US3753583A (fr)
AT (1) AT313003B (fr)
BE (1) BE775204A (fr)
CH (1) CH552144A (fr)
DE (1) DE2155191A1 (fr)
FR (1) FR2114495A5 (fr)
IT (1) IT940516B (fr)
NL (1) NL7115472A (fr)
SE (1) SE343928B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4859109A (en) * 1986-08-05 1989-08-22 Giampaolo Targetti Expansion type clamp for connecting coinciding ends of tubular components for reticular structures and the like
US5002421A (en) * 1985-09-02 1991-03-26 Elite N.V. Connection for successive sections of a helical spring like conveying elements
US20050008431A1 (en) * 2003-07-08 2005-01-13 Harold Albaugh Connector for tube and connected tubular structure
NL1027917C2 (nl) * 2004-12-29 2006-06-30 Prolyte Vastgoed B V Verbindingsstuk voor constructiedelen.
US20160160897A1 (en) * 2014-12-08 2016-06-09 Prairie View Industries, Inc. Insert connector and stem caster assembly using the same
CN107150577A (zh) * 2016-03-03 2017-09-12 德韧营运有限责任公司 挤制构件角连接
US20180202477A1 (en) * 2017-01-13 2018-07-19 Futaba Industrial Co., Ltd. Pipe joining structure
US20180361188A1 (en) * 2016-08-05 2018-12-20 Pucuda, Inc. Modular Amusement Play Structure Employing Multi-Piece Connectors

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2312637A1 (fr) * 1975-05-29 1976-12-24 Eurocour Sarl Ensemble de profiles et pieces d'assemblage pour la realisation de chassis vitres ou non, ouvrants ou non
FR2436904A1 (fr) * 1978-09-25 1980-04-18 Rossi Pierre Alain Perfectionnement aux raccords pour l'assemblage de tubes carres et rectangulaires
IT1301959B1 (it) * 1998-07-29 2000-07-20 Leonardo Srl Dispositivo di giunzione per la realizzazione di sistemi portantiper posti di lavoro
AU2012206402A1 (en) * 2011-01-11 2013-05-09 Iyad Mohamad Adnan Daadoush A non-standard, reinforced load-bearing cell for a simplified, interconnecting cellular construction system
CN106640882A (zh) * 2013-11-28 2017-05-10 苏州征之魂专利技术服务有限公司 与异型材配合的拐角插头拆装节点结构件
DE202018103215U1 (de) 2018-06-08 2018-07-09 Korb + Korb Architektur Kommunikation Design Verbindungsvorrichtung zum lösbaren Verbinden zweier winklig zueinander ausgerichteter Gestellteile eines Möbelgestells

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE548983A (fr) *
US1943807A (en) * 1932-11-21 1934-01-16 Joseph S D Bellerive Tool handle
US3094338A (en) * 1960-12-23 1963-06-18 Richard W Page Chuck
US3128131A (en) * 1961-11-02 1964-04-07 Andrew F Bianchini Hammer handle anchoring means
US3576336A (en) * 1969-11-19 1971-04-27 Uniroyal Inc Force transmitting system
US3645569A (en) * 1970-08-25 1972-02-29 Beautiline Ltd Connector for joining tubular members

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE548983A (fr) *
US1943807A (en) * 1932-11-21 1934-01-16 Joseph S D Bellerive Tool handle
US3094338A (en) * 1960-12-23 1963-06-18 Richard W Page Chuck
US3128131A (en) * 1961-11-02 1964-04-07 Andrew F Bianchini Hammer handle anchoring means
US3576336A (en) * 1969-11-19 1971-04-27 Uniroyal Inc Force transmitting system
US3645569A (en) * 1970-08-25 1972-02-29 Beautiline Ltd Connector for joining tubular members

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5002421A (en) * 1985-09-02 1991-03-26 Elite N.V. Connection for successive sections of a helical spring like conveying elements
US4859109A (en) * 1986-08-05 1989-08-22 Giampaolo Targetti Expansion type clamp for connecting coinciding ends of tubular components for reticular structures and the like
US20050008431A1 (en) * 2003-07-08 2005-01-13 Harold Albaugh Connector for tube and connected tubular structure
US6874971B2 (en) 2003-07-08 2005-04-05 Freeman Capital Company Connector for tube and connected tubular structure
NL1027917C2 (nl) * 2004-12-29 2006-06-30 Prolyte Vastgoed B V Verbindingsstuk voor constructiedelen.
EP1676967A1 (fr) * 2004-12-29 2006-07-05 Prolyte Vastgoed B.V. Pièce de liaison pour éléments de construction
US20160160897A1 (en) * 2014-12-08 2016-06-09 Prairie View Industries, Inc. Insert connector and stem caster assembly using the same
US10094406B2 (en) * 2014-12-08 2018-10-09 Prairie View Industries, Inc. Insert connector and stem caster assembly using the same
CN107150577A (zh) * 2016-03-03 2017-09-12 德韧营运有限责任公司 挤制构件角连接
US20180361188A1 (en) * 2016-08-05 2018-12-20 Pucuda, Inc. Modular Amusement Play Structure Employing Multi-Piece Connectors
US20180202477A1 (en) * 2017-01-13 2018-07-19 Futaba Industrial Co., Ltd. Pipe joining structure

Also Published As

Publication number Publication date
FR2114495A5 (fr) 1972-06-30
NL7115472A (fr) 1972-05-15
SE343928B (fr) 1972-03-20
BE775204A (fr) 1972-03-01
IT940516B (it) 1973-02-20
AT313003B (de) 1973-12-15
DE2155191A1 (de) 1972-05-18
CH552144A (de) 1974-07-31

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