GB2049857A - Metal connector for wood and method for its use - Google Patents

Metal connector for wood and method for its use Download PDF

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Publication number
GB2049857A
GB2049857A GB8005367A GB8005367A GB2049857A GB 2049857 A GB2049857 A GB 2049857A GB 8005367 A GB8005367 A GB 8005367A GB 8005367 A GB8005367 A GB 8005367A GB 2049857 A GB2049857 A GB 2049857A
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GB
United Kingdom
Prior art keywords
connector
strip
plate
wood
connector according
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.)
Withdrawn
Application number
GB8005367A
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.)
FELICE E P DI
Original Assignee
FELICE E P DI
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 FELICE E P DI filed Critical FELICE E P DI
Publication of GB2049857A publication Critical patent/GB2049857A/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
    • E04C3/18—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with metal or other reinforcements or tensioning 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
    • E04B1/48—Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses
    • E04B1/49—Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses with self-penetrating parts, e.g. claw dowels
    • 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
    • F16B15/00—Nails; Staples
    • F16B15/0023—Nail plates
    • 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
    • F16B15/00—Nails; Staples
    • F16B15/0023—Nail plates
    • F16B15/003—Nail plates with teeth cut out from the material of the plate
    • F16B15/0046—Nail plates with teeth cut out from the material of the plate from the body of the plate
    • 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
    • F16B15/00—Nails; Staples
    • F16B15/0023—Nail plates
    • F16B2015/0069—Nail plates with nails on both sides

Abstract

A metal connector for wood is in the form of a plate having teeth 1 cut and bent out of the plane of the plate at right angles on both sides. The distribution, number and shape of the teeth are substantially the same for both sides. The connector is used by locating it between two pieces of wood and then squeezing such assembly to cause the teeth to penetrate the pieces to secure them together. A strip 10 may be placed under tension by chuck jaws 13 and wooden strips 11 and 12 pressed onto it by roller 14. Release of the strip produces a prestressed beam. <IMAGE>

Description

SPECIFICATION Metal connector for joining wood and method for its use The present invention relates to a connector for joining wood, and to a method of using the connector.
Various types of connectors are known, which are used for example in the manufacture of industrialised wooden frame-works, for fixing together several adjacent frame members. A connector is generally in the form of a metal plate of, for example, rectangular shape provided on one of its sides with a plurality of teeth, each tooth being constituted by being partially cut out in the plate before being bent at right angles with respect to the plate. When the plate is fitted to a plurality of adjacent members of a wooden framework, several teeth are driven into each member, which ensures a particularly robust connection.
The object of the invention is to provide a connector which can be used to produce wooden arrangements which, hitherto, could not be produced with known connectors, in particular: - beams, the web of which is constituted by a lattice.
-frame-work trusses, the length of which is greater than the standard length of timber available.
- lamellated structures which are not stuck with adhesive.
- pre-fabricated building panels.
- gantries for industrial buildings.
A connector, according to the invention, comprises a metal plate having a plurality of teeth cut out from the plate and bent outwardly of the plane of the plate on both sides of the plate with substantially equal distribution, number and shape of teeth on both sides of the plate.
The connector is preferably constituted by a plate of substantially rectangular, or more generally polygonal shape.
The connector may be constituted by a very long metal strip.
Preferably the two major sides of all the teeth are arranged transversely with respect to the major axis of the plate.
A method of using such a connector according to the invention comprises the steps of placing the connector between two respective flat faces of two wooden elements to be connected, and then squeezing such assembly between the jaws of a press or between pressing rollers in order to cause the teeth to penetrate the two wooden elements to connect the latter together.
Several strips of wood may be fixed one against the other by inserting a connector strip in the gap between two adjacent wooden strips to produce nailed lamellated structures.
A pre-stressed composite member of great length may be produced in the following manner: - a connector strip is stretched lengthwise to obtain elastic deformation thereof; - while the strip remains stretched, two pieces of wood of substantially the same length as the strip are placed on either side of the latter, these two pieces of wood being pressed against the strip; - the strip is then released.
Embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a perspective view of a connector according to the invention.
Figure 2 is a partial front view of the connector of Figure 1.
Figure 3 is a side view of the connector of Figure 1.
Figure 4 is a perspective view of an alternative connector according to the invention.
Figure 5 is a perspective exploded view of parts of a wooden arrangement employing connectors according to the invention.
Figure 6 is å perspective view of the wooden arrangement of Figure 5 assembled.
Figure 7 is a side view of the wooden arrangement, before assembly.
Figure 8 is a cross-sectional view of the assembled wooden arrangement.
Figure 9 is a perspective view of another wooden arrangement which can be produced by means of connectors according to the invention.
Figure 10 is an exploded perspective view of another wooden arrangement which can be produced by means of connectors according to the invention.
Figure 11 is a perspective view of this assembled arrangement.
Figure 12 is a side view of a lamellated beam produced by means of strip connectors according to the invention.
Figures 13 to 1 5 are views illustrating the method of the invention, for producing a wooden beam which is pre-stressed by means of a strip connector.
Figures 1 to 3 illustrate a connector according to the invention, in the form of a rectangular plate.
This connector is constituted by a plate of sheet metal provided with a plurality of teeth 1. Each tooth is cut out in the plate before being bent outwardly of the plane of the plate at right angles with respect ta the plate. Both major sides 2 and 3 of all the teeth are arranged transversely with respect to the major axis of the plate. The connector is provided with teeth 1 on both faces, the distribution, numbers and shapes of the teeth being substantially the same for both sides.
In Figure 4, the connector is produced in the form of a continuous strip of great length. As previously, this strip is provided with teeth 1 on both its sides and the two major sides of these teeth are arranged transversely with respect to the major axis of the strip.
Connectors according to the invention are used by inserting them between two pieces of wood, in contact with the two major faces of these two pieces, then by squeezing the arrangement for example between the jaws of a press or between pressing rollers in order to cause the teeth 1 of the connectors to penetrate simultaneously in the two wooden pieces and thus to fix same together by means of the connector (Figures 5 to 8).
In this way and with connectors in the form of plates 4, it is possible to produce beams composed of two plywood panels 5 fixed on either side of two pieces of timber 6. It will be noted that the plane of the teeth 1 is arranged transversely with respect to the fibres of the two pieces of timber 6 (Figure 9), which is advantageous as regards the rigidity of the connection.
In the same way, it is possible to produce composite beams comprising, on the one hand, a central lattice 7 and, on the other hand, at the top and bottom, pieces of timber connected laterally on either side, these pieces 8 of timber thus giving the arrangement a cross-section in the form of an H laid on its side (Figures 10 and 1 1).
By using connectors in the form of strips, it is possible to produce beams composed of a series of superimposed strips 9 of wood (Figure 12), a continuous strip 10 being inserted in each gap between two strips. This method of use has a tripie advantage: - in view of the fact that it is possible to superimpose as many strips as desired, it is possible to produce composite beams of considerable cross-section, which are capable of withstanding high loads, the cross-section also being able to be varied without difficulty from one end of the beam to the other.
- since the strips are very flexible, taken individually, it is possible to produce beams which are curved according to any design, without difficulty.
it is possible to juxtapose the strips end to end, provided that the junction point of the strips of one layer is staggered with respect to that of the other layer, so as not to compromise the rigidity of the arrangement.
Composite beams are thus obtained whereof the length is much greater than the standard length of timber available.
Frame-work members produced by means of this method could be referred to by the imaginative name "BOIS LAME" (lamellated timber).
These members can be produced more easily than glued lamellated members which have to be left in a press until the glue sets and which thus require a very bulky installation, whereas in order to assemble a lamellated wooden member according to the invention, it is sufficient to pass its components between two pressing rollers.
According to a modification illustrated in Figures 13 to 15, a pre-stressed wooden beam is produced by means of two pieces of wood 11 and 1 2 and a continuous strip 10, by proceeding in the following manner: - the strip 10 is stretched lengthwise, each end of this strip being held in a chuck 13, in order to obtain an elastic deformation of the strip, by elongation of the latter (Figure 13).
- when the strip has been stretched, the pieces 11 and 12 of wood are secured on either side, by squeezing the arrangement between two rollers 14 (Figure 14).
- the strip 10 is released from chucks 13 (Figure 15).
In the composite beam obtained, the pieces 11 and 12 of wood are constantly subject to an axial compressive force (arrows 1 5) owing to the fact that the strip 10 tends to resume its initial length by contracting elastically.
The principle of pre-stressing, which is wellknown for producing structures from reinforced concrete, is in this case applied to a wooden beam, an application which is completely new.
Thus, the beam is initially subjected to permanent compressive stress which is superimposed on all other stresses and which is thus able to suppress extension stresses.

Claims (10)

1. A connector comprising a metal plate having a plurality of teeth cut out from the plate and bent outwardly of the ptane of the plate on both sides of the plate.
2. A connector according to claim 1, in which the distribution, number and shape of teeth are substantially the same for both sides of the plate.
3. A connector according to claim 1 or 2, in which two major sides of each tooth are arranged transversely to the major axis of said connector.
4. A connector according to any one of the preceding claims, in which the plate is of substantially rectangular shape.
5. A connector according to any one of claims 1 to 3, in which the plate is in the form of a continuous strip of great length.
6. A method of using the connector according to any one of claims 1 to 5, comprising the steps of placing the connector between two respective flat sides of two wooden parts to be connected, and then squeezing such assembly between the jaws of a press or between pressing rollers in order to cause the teeth to penetrate the two wooden parts and thus to connect the two parts together.
7. A method of using the connector according to claim 5, comprising the step of connecting a plurality of strips of wood together by inserting a connector in strip form between adjacent strips of wood in order to produce nailed lamellated structures.
8. A method of using the connector according to claim 5 to produce a composite pre-stressed member of great length comprising the steps of stretching the connector lengthwise in order to obtain an elastic deformation due to elongation of the strip, while the strip remains stretched, fixing two pieces of wood of substantially the same length as the connector strip on either side of the latter, by pressing these two pieces of wood against the connector strip, and releasing the strip.
9. A connector substantially as hereinbefore described with reference to the accompanying drawings.
10. A method of using a connector according to any one of claims 1 to 5 and'9, substantially as hereinbefore described with reference to the accompanying drawings.
GB8005367A 1979-05-10 1980-02-18 Metal connector for wood and method for its use Withdrawn GB2049857A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7912523A FR2456248A1 (en) 1979-05-10 1979-05-10 METAL CONNECTOR FOR JOINING WOOD AND METHOD FOR ITS USE

Publications (1)

Publication Number Publication Date
GB2049857A true GB2049857A (en) 1980-12-31

Family

ID=9225560

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8005367A Withdrawn GB2049857A (en) 1979-05-10 1980-02-18 Metal connector for wood and method for its use

Country Status (6)

Country Link
JP (1) JPS55149407A (en)
BE (1) BE880080A (en)
BR (1) BR8001441A (en)
DE (1) DE2947513A1 (en)
FR (1) FR2456248A1 (en)
GB (1) GB2049857A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0383411A2 (en) * 1989-02-17 1990-08-22 Van Hoorn Exploitatie Maatschappij B.V. Connector member
US5451239A (en) * 1992-09-12 1995-09-19 Sewell; Anthony J. Animal deterrent devices
WO1998031889A1 (en) * 1997-01-17 1998-07-23 Von Morze Reichartz Sigrun Supporting structure and its structural members
WO1999029983A1 (en) * 1997-12-05 1999-06-17 Pentti Pelkonen Construction beam
GB2359067A (en) * 1999-12-15 2001-08-15 John David Harvey Closeboarded box walls
DE10133976A1 (en) * 2001-07-17 2003-02-20 Michael Graebe Connector plate for reinforcing adhesive joint between two pieces of wood is fitted into grooves in pieces which contain adhesive and has sloping hooks on each side which face bottom of groove
NL1021263C2 (en) * 2002-08-13 2004-02-17 Marcel Verweij Wooden element and method for manufacturing such a wooden element.
EP1585871A1 (en) * 2002-11-22 2005-10-19 Tec-Truss Holdings Pty Ltd Composite beams
EP1567744B1 (en) * 2002-11-22 2008-02-13 Ladderm8 Ltd. Ladder support apparatus
US7726094B2 (en) 1997-01-17 2010-06-01 Induo Gesellschaft Zur Verwertung Von Schutzrechten Mbh & Co. Kg Supporting structure and its structural members
WO2014076168A1 (en) * 2012-11-15 2014-05-22 Rockwool International A/S An insulating wall system for a building structure
CN109595241A (en) * 2019-01-21 2019-04-09 郑格 A kind of wood joint fastening steel disc and its manufacturing method

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI69498C (en) * 1983-10-07 1986-02-10 Metsaeliiton Teollisuus Oy CONCERNING THE CONSTRUCTION OF TRAILERS WHICH FOLLOWS THE CONSTRUCTION OF TAKSTOLSKONSTRUKTIONEN
JPS6084626U (en) * 1983-11-17 1985-06-11 タキロン株式会社 Jig for connecting heat-insulating corrugated plates
JPS6114345A (en) * 1984-06-29 1986-01-22 積水化学工業株式会社 Fixing structure of wall surface material
FR2614968B1 (en) * 1987-05-07 1990-06-15 Boissel Eric WOODEN STRUCTURES DELIVERED IN SPARE PARTS, IN PARTICULAR FURNITURE OR FRAMEWORK AND METHODS OF CONSTRUCTION
ES2248063T3 (en) * 1999-04-08 2006-03-16 Beon Top Enterprises Ltd. SYSTEM OF CONTAINING WALL WITH INTERRUPTED BUILDING ELEMENTS.
JP4733508B2 (en) * 2005-11-25 2011-07-27 ヤンマー株式会社 Work vehicle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE858016C (en) * 1950-04-22 1952-12-04 Hans Milford Von Dresky Wooden construction part
GB1232593A (en) * 1967-05-15 1971-05-19
BE748846A (en) * 1969-04-24 1970-09-16 Lindal Skuli W PRE-STRESSED WOODEN BEAM, HORIZONTAL LAYERS, WOODEN AND METAL LAYERS, AND METHOD FOR ITS
US3605360A (en) * 1969-04-24 1971-09-20 Skuli Walter Lindal Prestressed vertically laminated beam of wood
BE758812A (en) * 1970-01-30 1971-04-16 Lindal Skuli W REINFORCED WOOD FLOOR PLATES
US3841195A (en) * 1973-05-15 1974-10-15 Automated Building Components Two-sided fastener

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0383411A2 (en) * 1989-02-17 1990-08-22 Van Hoorn Exploitatie Maatschappij B.V. Connector member
EP0383411A3 (en) * 1989-02-17 1992-08-19 Van Hoorn Exploitatie Maatschappij B.V. Connector member
US5451239A (en) * 1992-09-12 1995-09-19 Sewell; Anthony J. Animal deterrent devices
WO1998031889A1 (en) * 1997-01-17 1998-07-23 Von Morze Reichartz Sigrun Supporting structure and its structural members
US7726094B2 (en) 1997-01-17 2010-06-01 Induo Gesellschaft Zur Verwertung Von Schutzrechten Mbh & Co. Kg Supporting structure and its structural members
WO1999029983A1 (en) * 1997-12-05 1999-06-17 Pentti Pelkonen Construction beam
GB2359067A (en) * 1999-12-15 2001-08-15 John David Harvey Closeboarded box walls
DE10133976A1 (en) * 2001-07-17 2003-02-20 Michael Graebe Connector plate for reinforcing adhesive joint between two pieces of wood is fitted into grooves in pieces which contain adhesive and has sloping hooks on each side which face bottom of groove
BE1015208A3 (en) * 2002-08-13 2004-11-09 Marcel Verweij Wooden element and method for manufacturing of such wood element.
NL1021263C2 (en) * 2002-08-13 2004-02-17 Marcel Verweij Wooden element and method for manufacturing such a wooden element.
EP1585871A1 (en) * 2002-11-22 2005-10-19 Tec-Truss Holdings Pty Ltd Composite beams
EP1567744B1 (en) * 2002-11-22 2008-02-13 Ladderm8 Ltd. Ladder support apparatus
EP1585871A4 (en) * 2002-11-22 2011-08-31 Tec Truss Holdings Pty Ltd Composite beams
WO2014076168A1 (en) * 2012-11-15 2014-05-22 Rockwool International A/S An insulating wall system for a building structure
US9631360B2 (en) 2012-11-15 2017-04-25 Rockwool International A/S Insulating wall system for a building structure
CN109595241A (en) * 2019-01-21 2019-04-09 郑格 A kind of wood joint fastening steel disc and its manufacturing method

Also Published As

Publication number Publication date
DE2947513A1 (en) 1980-11-13
BE880080A (en) 1980-03-17
FR2456248A1 (en) 1980-12-05
JPS55149407A (en) 1980-11-20
FR2456248B1 (en) 1983-05-13
BR8001441A (en) 1980-12-30

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)