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US20020020133A1 - Metal roof truss - Google Patents

Metal roof truss Download PDF

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Publication number
US20020020133A1
US20020020133A1 US09/906,717 US90671701A US2002020133A1 US 20020020133 A1 US20020020133 A1 US 20020020133A1 US 90671701 A US90671701 A US 90671701A US 2002020133 A1 US2002020133 A1 US 2002020133A1
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US
United States
Prior art keywords
metal
base member
members
clinch
roof truss
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.)
Abandoned
Application number
US09/906,717
Inventor
Edward Embury
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US09/906,717 priority Critical patent/US20020020133A1/en
Publication of US20020020133A1 publication Critical patent/US20020020133A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/04—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting
    • 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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/11—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with non-parallel upper and lower edges, e.g. roof trusses
    • 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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • 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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces

Definitions

  • This invention relates to metal rood trusses which comprise a framework mountable on top of the walls of a building to support a roof.
  • a metal roof truss has a frame formed by metal frame members and a series of metal intermediate members secured at opposite ends to frame members by clinch locks, each clinch lock having been formed by forcing metal of one member through another member with consequent deformation of the other member to form a rivet-like projection.
  • a metal roof truss in accordance with the invention can provide a very strong roof support which is easy to fabricate.
  • the frame may be of generally triangular shape and include a base member, a first side member extending from one end of the base member in an upwardly inclined direction, a second side member extending from the opposite end of the base member in an upwardly inclined direction to form an apex with the first side member, the intermediate members extending between the base member and a side member, each member having a C channel section with a bottom portion, side walls and inwardly extending flanges, the C channel sections of the base member and side members being directed in opposite directions to the C channel sections of the intermediate members, with the bottom portion of each intermediate member abutting the bottom portions of the base member and the side member and with the clinch locks being formed between abutting bottom portions.
  • FIG. 1 is a perspective view of a metal roof truss in accordance with the invention
  • FIG. 2 is a rear view thereof
  • FIG. 3 is a front view thereof
  • FIG. 4 is a view on an enlarged scale of the rear of one of the connections of the roof truss as indicated by the circle 3 in FIG. 2,
  • FIG. 5 is a similar view of the front of the connection as indicated by the circle 5 in FIG. 2,
  • FIG. 6 is a sectional view of a clinch lock taken along the line 6 - 6 of FIG. 4, and
  • FIG. 7 is a sectional view of a clinch lock taken along the line 7 - 7 of FIG. 4.
  • a metal roof truss in accordance with one embodiment of the invention has a main frame of generally triangular shape including a metal base member 12 , a first side member 14 extending from one end of the base member 12 in an upwardly inclined direction, and a second side member 16 extending from the opposite end of the base member 12 in an upwardly inclined direction to meet the side member 14 at an apex 18 .
  • the roof truss also has a series of metal intermediate members 20 extending between the base member 12 and one of the side members 14 , 16 .
  • the base member 12 , side members 14 , 16 and intermediate members 20 each have a C channel section, namely with a bottom portion 22 , side walls 24 , 26 and inwardly extending flanges 28 , 30 as shown in FIGS. 4 and 5.
  • the C-channel sections of the base member 12 and side members 14 , 16 are directed in opposite directions to the C channel sections of the intermediate members 20 so that the bottom portion 22 of the C channel section of an intermediate member 20 abuts the bottom portion 22 of the C channel section of the base member 12 and side member 14 or 16 .
  • each intermediate member 20 is connected at one end to the bottom portion 22 of the base member 12 and at the other end to the bottom portion 22 of a side member 14 or 16 by clinch locks 40 .
  • a clinch lock 40 as shown particularly in FIG. 6, the metal of the intermediate member 20 is forced through the frame member 16 to form a rivet-like projection 48 .
  • a transversely extending strengthening member 50 of C channel section may be provided at a connection as shown in FIG. 4 so that each clinch lock 40 holds three members together, see FIG. 7.
  • a metal roof truss in accordance with the invention provides an adequately strong structure which can be readily manufactured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

A metal roof truss has a frame formed by metal frame members and a series of metal intermediate members secured at opposite ends to frame members by clinch locks. Each clinch lock is formed by forcing metal of one member through another member with consequent deformation of the other member to form a rivet-like projection.

Description

    RELATED APPLICATION
  • This invention claims priority from U.S. Provisional Patent Application No. 60/219,135 filed Jul. 19, 2000.[0001]
    • BACKGROUND OF THE INVENTION
  • This invention relates to metal rood trusses which comprise a framework mountable on top of the walls of a building to support a roof. [0002]
  • Previously, pre-engineered and prefabricated roof trusses have conventionally been made of wood. Although attempts have been made to provide rooftrusses made of metal, for one reason or another, metal roof trusses have not proved to be very successful in practice. [0003]
  • It is therefore an object of the present invention to provide an improved metal roof truss. [0004]
    • SUMMARY OF THE INVENTION
  • According to the present invention, a metal roof truss has a frame formed by metal frame members and a series of metal intermediate members secured at opposite ends to frame members by clinch locks, each clinch lock having been formed by forcing metal of one member through another member with consequent deformation of the other member to form a rivet-like projection. [0005]
  • A metal roof truss in accordance with the invention can provide a very strong roof support which is easy to fabricate. [0006]
  • The frame may be of generally triangular shape and include a base member, a first side member extending from one end of the base member in an upwardly inclined direction, a second side member extending from the opposite end of the base member in an upwardly inclined direction to form an apex with the first side member, the intermediate members extending between the base member and a side member, each member having a C channel section with a bottom portion, side walls and inwardly extending flanges, the C channel sections of the base member and side members being directed in opposite directions to the C channel sections of the intermediate members, with the bottom portion of each intermediate member abutting the bottom portions of the base member and the side member and with the clinch locks being formed between abutting bottom portions.[0007]
    • DESCRIPTION OF THE DRAWINGS
  • One embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings, which: [0008]
  • FIG. 1 is a perspective view of a metal roof truss in accordance with the invention, [0009]
  • FIG. 2 is a rear view thereof, [0010]
  • FIG. 3 is a front view thereof, [0011]
  • FIG. 4 is a view on an enlarged scale of the rear of one of the connections of the roof truss as indicated by the circle [0012] 3 in FIG. 2,
  • FIG. 5 is a similar view of the front of the connection as indicated by the [0013] circle 5 in FIG. 2,
  • FIG. 6 is a sectional view of a clinch lock taken along the line [0014] 6-6 of FIG. 4, and
  • FIG. 7 is a sectional view of a clinch lock taken along the line [0015] 7-7 of FIG. 4.
    • DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Referring to the drawings, a metal roof truss in accordance with one embodiment of the invention has a main frame of generally triangular shape including a [0016] metal base member 12, a first side member 14 extending from one end of the base member 12 in an upwardly inclined direction, and a second side member 16 extending from the opposite end of the base member 12 in an upwardly inclined direction to meet the side member 14 at an apex 18. The roof truss also has a series of metal intermediate members 20 extending between the base member 12 and one of the side members 14, 16.
  • The [0017] base member 12, side members 14, 16 and intermediate members 20 each have a C channel section, namely with a bottom portion 22, side walls 24,26 and inwardly extending flanges 28, 30 as shown in FIGS. 4 and 5. The C-channel sections of the base member 12 and side members 14, 16 are directed in opposite directions to the C channel sections of the intermediate members 20 so that the bottom portion 22 of the C channel section of an intermediate member 20 abuts the bottom portion 22 of the C channel section of the base member 12 and side member 14 or 16.
  • The [0018] bottom portion 22 of each intermediate member 20 is connected at one end to the bottom portion 22 of the base member 12 and at the other end to the bottom portion 22 of a side member 14 or 16 by clinch locks 40. In a clinch lock 40, as shown particularly in FIG. 6, the metal of the intermediate member 20 is forced through the frame member 16 to form a rivet-like projection 48. If desired, a transversely extending strengthening member 50 of C channel section may be provided at a connection as shown in FIG. 4 so that each clinch lock 40 holds three members together, see FIG. 7.
  • A metal roof truss in accordance with the invention provides an adequately strong structure which can be readily manufactured. Other advantages of the invention will now be readily apparent to a person skilled in the art from the foregoing description of a preferred embodiment. Other embodiments of the invention will also now be readily apparent, the scope of the invention being defined in the appended claims. [0019]

Claims (2)

1. A metal roof truss having a frame formed by metal frame members and a series of metal intermediate members secured at opposite ends to frame members by clinch locks, each clinch lock having been formed by forcing metal of one member through another member with consequent deformation of the other member to form a rivet-like projection.
2. A metal roof truss according to claim 1 wherein the frame is of generally triangular shape and include a base member, a first side member extending from one end of the base member in an upwardly inclined direction, a second side member extending from the opposite end of the base member in an upwardly inclined direction to form an apex with the first side member, the intermediate members extending between the base member and a side member, each member having a C channel section with a bottom portion, side walls and inwardly extending flanges, the C channel sections of the base member and side members being directed in opposite directions to the C channel sections of the intermediate members, with the bottom portion of each intermediate member abutting the bottom portions of the base member and the side member and with the clinch locks being formed between abutting bottom portions.
US09/906,717 2000-07-19 2001-07-18 Metal roof truss Abandoned US20020020133A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09/906,717 US20020020133A1 (en) 2000-07-19 2001-07-18 Metal roof truss

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21913500P 2000-07-19 2000-07-19
US09/906,717 US20020020133A1 (en) 2000-07-19 2001-07-18 Metal roof truss

Publications (1)

Publication Number Publication Date
US20020020133A1 true US20020020133A1 (en) 2002-02-21

Family

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Family Applications (1)

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US09/906,717 Abandoned US20020020133A1 (en) 2000-07-19 2001-07-18 Metal roof truss

Country Status (3)

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US (1) US20020020133A1 (en)
AU (1) AU2001275626A1 (en)
WO (1) WO2002008538A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040211146A1 (en) * 2001-07-19 2004-10-28 Weeks Kevin William Truss
US20070151200A1 (en) * 2006-01-03 2007-07-05 Madray Steven G Folding roof truss
WO2008003142A1 (en) * 2006-07-07 2008-01-10 Bluescope Steel Limited Joining sheet metal products
US20090071091A1 (en) * 2003-12-18 2009-03-19 Takehisa Ode Structure used as greenhouse roof frame, greenhouse roof frame, greenhouse framework, greenhouse, and greenhouse framework building method
US20090193727A1 (en) * 2003-10-24 2009-08-06 Nucon Steel Corporation Metal truss
WO2010144261A1 (en) * 2009-06-09 2010-12-16 Illinois Tool Works Inc. Construction of trusses for roofs and floors
US20160090733A1 (en) * 2014-09-30 2016-03-31 Charles Cheung Pinnacle truss

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5535569A (en) * 1992-03-06 1996-07-16 Bhp Steel (Jla) Pty, Ltd. Sheet metal structural member and frames incorporating same
AUPM749194A0 (en) * 1994-08-16 1994-09-08 Byntech Pty Ltd Building truss
US6167674B1 (en) * 1998-06-01 2001-01-02 Lakdas Nanayakkara Light-gauge truss framing element

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040211146A1 (en) * 2001-07-19 2004-10-28 Weeks Kevin William Truss
US20090193727A1 (en) * 2003-10-24 2009-08-06 Nucon Steel Corporation Metal truss
US8156706B2 (en) * 2003-10-24 2012-04-17 Nucon Steel Corporation Metal truss
US20090071091A1 (en) * 2003-12-18 2009-03-19 Takehisa Ode Structure used as greenhouse roof frame, greenhouse roof frame, greenhouse framework, greenhouse, and greenhouse framework building method
US8091291B2 (en) * 2003-12-18 2012-01-10 Takehisa Ode Structure used as greenhouse roof frame, greenhouse roof frame, greenhouse framework, greenhouse, and greenhouse framework building method
US20070151200A1 (en) * 2006-01-03 2007-07-05 Madray Steven G Folding roof truss
WO2008003142A1 (en) * 2006-07-07 2008-01-10 Bluescope Steel Limited Joining sheet metal products
WO2010144261A1 (en) * 2009-06-09 2010-12-16 Illinois Tool Works Inc. Construction of trusses for roofs and floors
US20160090733A1 (en) * 2014-09-30 2016-03-31 Charles Cheung Pinnacle truss
US9567748B2 (en) * 2014-09-30 2017-02-14 Charles Cheung Pinnacle truss

Also Published As

Publication number Publication date
AU2001275626A1 (en) 2002-02-05
WO2002008538A1 (en) 2002-01-31

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