EP1087071A1 - Tisch mit Schwingarm zum Zusammenbau von Trägerfachwerken und Methode dazu - Google Patents

Tisch mit Schwingarm zum Zusammenbau von Trägerfachwerken und Methode dazu Download PDF

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Publication number
EP1087071A1
EP1087071A1 EP99307491A EP99307491A EP1087071A1 EP 1087071 A1 EP1087071 A1 EP 1087071A1 EP 99307491 A EP99307491 A EP 99307491A EP 99307491 A EP99307491 A EP 99307491A EP 1087071 A1 EP1087071 A1 EP 1087071A1
Authority
EP
European Patent Office
Prior art keywords
truss
flipper
worksurface
accordance
table assembly
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Withdrawn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
EP99307491A
Other languages
English (en)
French (fr)
Inventor
Christopher L c/o J.C. Carr Jr. Esq Haase
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.)
Mitek Holdings Inc
Original Assignee
Mitek Holdings Inc
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
Priority to PCT/US1999/021901 priority Critical patent/WO2001021355A1/en
Priority to CA002282987A priority patent/CA2282987C/en
Priority claimed from PCT/US1999/021901 external-priority patent/WO2001021355A1/en
Application filed by Mitek Holdings Inc filed Critical Mitek Holdings Inc
Priority to EP99307491A priority patent/EP1087071A1/de
Priority to AU48877/99A priority patent/AU755085C/en
Priority to ZA9906203A priority patent/ZA996203B/xx
Publication of EP1087071A1 publication Critical patent/EP1087071A1/de
Withdrawn legal-status Critical Current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
    • E04C3/16—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with apertured web, e.g. trusses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F7/00—Nailing or stapling; Nailed or stapled work
    • B27F7/15—Machines for driving in nail- plates and spiked fittings
    • B27F7/155—Machines for driving in nail- plates and spiked fittings for nail plates

Definitions

  • This invention relates generally to an assembly for use in the manufacture of trusses and, more particularly, to an assembly and methods for assembling a prefabricated truss.
  • Prefabricated trusses are often used in the construction of building structures because of their strength, reliability, low cost, and ease of use.
  • the trusses are typically assembled in a factory using machinery for mass-fabrication of individual truss components.
  • the trusses are assembled, for example, on large assembly tables and then shipped to construction sites.
  • a prefabricated truss typically includes truss members coupled by nailing plates. Each truss member has a first surface and a second surface, and the truss members are pre-cut for a pre-defined truss configuration.
  • the truss members are arranged on a long assembly table and nailing plates are placed over the first surface of the truss members. The plates are then secured to the truss members using, for example, a roller or a vertical press. The truss is then manually flipped over and nailing plates are positioned over the second face of the truss members and secured thereto. The completed truss is then removed from the assembly table.
  • a truss table assembly which, in one embodiment, includes at least two truss tables and at least two flipper arms for flipping the truss after a first set of nailing plates have been engaged to the truss. More particularly, each truss table includes first and second worksurfaces and inner rails and outer rails to clamp the truss members in position over the respective worksurfaces. Each flipper arm includes a flipper member and a spur. One end of the flipper arm is rotatably coupled to a truss table and the flipper member includes a support surface to support the truss during flipping.
  • the spur, or stop member extends from the flipper member support surface and limits movement of the truss along the support surface.
  • a first flipper arm is positioned between the first worksurfaces of the first and second truss tables and a second flipper arm is positioned between the second worksurfaces of the first and second truss tables.
  • the flipper arms are positioned relative to each other such that as flipper arms are rotated to the vertical position, the respective support surfaces are substantially aligned.
  • the truss members are positioned on the truss table assembly first worksurfaces so that at least one of the truss members extends over the first flipper arm.
  • the first worksurface rails are moved towards the truss members to clamp, or trap, the members in place.
  • Nailing plates are then positioned over the truss member first surfaces and are engaged to the truss using, for example, a roller or a vertical press.
  • the first worksurface rails are then moved away from the truss members so that the members are no longer clamped in place.
  • the truss is then raised from the truss table first worksurfaces by rotating the first flipper arm.
  • the second flipper arm As the flipper arm is rotated to a substantially vertical position, the second flipper arm also is rotated toward a vertical position. As the first flipper arm rotates, the truss slides along the flipper arm support surface until the truss contacts the spur. The spur prevents the truss from sliding further down on the first flipper arm and supports the truss. When the first flipper arm reaches the substantially vertical position, the truss begins to move away, or separate from, the first flipper arm. The second flipper arm is in position so that the truss is received by and comes to rest on the flipper member support surface of the second flipper arm. The second flipper arm is then rotated to a horizontal position and the truss is supported by the second worksurfaces.
  • the second worksurfaces rails are then moved towards the truss members to clamp the truss. Nailing plates are then positioned over the truss member second surfaces and engaged to the truss. The second worksurface rails are then moved away from the truss members so that the truss is no longer clamped in place. The truss is then removed from the truss assembly.
  • the above described assembly facilitates fabricating a truss without requiring that the truss be manually flipped.
  • such assembly flips the truss without subjecting the truss to any significant bending or twisting.
  • Figure 1 is a top plan view of a truss table assembly in accordance with one embodiment of the present invention.
  • Figure 2 is a cross section view of the truss table assembly shown in Figure 1, with the flipper arms partially rotated towards a vertical position.
  • Figure 3 is a top plan view of a truss table assembly in accordance with an alternative embodiment of the present invention.
  • FIG. 1 is a top plan view of a truss table assembly 20 in accordance with one embodiment of the present invention.
  • Truss table assembly 20 includes truss tables 24A and 24B, flipper arms 26A and 26B, inner rails 28A, 28B, 30A, and 30B, and outer rails 34A, 34B, 36A, and 36B.
  • Truss tables 24A and 24B include respective first worksurfaces 44A and 44B, and respective second worksurfaces 48A and 48B.
  • First worksurfaces 44A and 44B and second worksurfaces 48A and 48B lie on opposing sides of longitudinal axis 52.
  • Inner rails 28A and 28B and outer rails 34A and 34B are movably coupled to respective first worksurfaces 44A and 44B.
  • Inner rails 30A and 30B and outer rails 36A and 36B are movably coupled to respective second worksurfaces 48A and 48B.
  • Flipper arms 26A and 26B are rotatable and move between a substantially horizontal position to a substantially vertical position relative to truss tables 24A and 24B to flip truss.
  • Spurs 60A and 60B extend from respective support surfaces 68A and 68B and support truss 70 so that truss 7U passes over inner rails 28A, 28B, 30A, and 30B as truss 70 is flipped.
  • Flipper arms 26A and 26B are made of steel or similar material capable of supporting weight of truss 70.
  • Truss 70 is then flipped by flipper arms 26A and 26B, and nailing plates (not shown) are placed over truss second surface (not shown) and secured to truss members 80A, 80B, 80C, 80D, 80E, and 80F. More particularly, truss members 80A, 80B, 80C, 80D, 80E, and 80F are positioned on truss table assembly 20 such that truss member intersections (not shown) are positioned on truss tables 24A or 24B. Inner rails 28A and 28B are moved towards respective outer rails 34A and 34B so that truss members 80A, 80B, 80C, 80D, 80E, and 80F are clamped therebetween.
  • Nailing plates 84A, 84B, 84C, 84D, 84E, 84F, 84G, and 84H are then placed over the truss member intersections (not shown) and secured to truss members 80A, 80B, 80C, 80D, 80E, and 80F, typically with a roller or a vertical press (not shown).
  • Inner rails 28A and 28B are then moved away from truss 70 adjacent to longitudinal axis 52.
  • Flipper arm 26A is then rotated from a substantially horizontal position below first worksurfaces 44A and 44B to a substantially vertical position.
  • truss 70 is raised from respective truss tables 24A and 24B, and flipper arm 26B is rotated from a substantially horizontal position below respective truss tables 24A and 24B to a less than vertical position.
  • arm 26A rotates, truss 70 slides along flipper arm support surface 68A until truss 70 is in contact with, and supported by spur 60A.
  • truss 70 begins to move away, or separate, from flipper arm 26A.
  • Flipper arm 26B is rotated so that truss 70 is received by and comes to rest on flipper arm support surface 68B.
  • Flipper arms 26A and 26B are returned to substantially horizontal positions below respective truss tables 24A and 24B.
  • truss 70 is supported by and lies on second worksurfaces 48A and 48B. As a result, truss 70 second surface (not shown) is now upwardly facing.
  • a truss table assembly 100 includes a truss table 104 having a worksurface 106, flipper arms 108A and 108B, inner rails 116A and 116B, and outer rails 120A and 120B.
  • Worksurface 106 includes flipper arm openings 124A and 124B extending therethrough.
  • Flipper arms 108A and 108B include respective flipper members 128A and 128B and respective spurs, or stop members, 132A and 132B.
  • Flipper arms 108A and 108B are positioned below flipper arm openings 124A and 124B.
  • Inner and outer rails 116A, 116B, 120A, and 120B extend an entire length of truss table 104 and are movably coupled to worksurface 106.
  • the above-described assembly facilitates fabricating a truss without requiring that the truss be manually flipped. In addition, such assembly flips the truss without subjecting the truss to any significant bending or twisting.
  • truss assembly was described as a serial process.
  • Such truss table assembly may, however, also be utilized to assemble multiple trusses simultaneously. For example, after securing the nailing plates to the truss members and flipping the truss, truss members from a second truss could be positioned on the first worksurface of the truss tables.
  • first and second trusses could then be simultaneously clamped by the rails and the nailing plates positioned such that the roller or press secures the nailing plates in the first and second truss simultaneously.
  • the first completed truss could be removed from the truss table assembly and the second truss could be flipped. This method of operation could significantly increase production rates.
  • the truss table assembly may include any number of truss tables and flipper arms depending upon the size of the truss to be assembled. Accordingly, the spirit and scope of the invention are to be limited only by the terms of the appended claims.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Automatic Assembly (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
EP99307491A 1999-09-21 1999-09-22 Tisch mit Schwingarm zum Zusammenbau von Trägerfachwerken und Methode dazu Withdrawn EP1087071A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PCT/US1999/021901 WO2001021355A1 (en) 1999-09-21 1999-09-21 Truss table with flipper and method of use
CA002282987A CA2282987C (en) 1999-09-21 1999-09-21 Truss table with flipper and method of use
EP99307491A EP1087071A1 (de) 1999-09-21 1999-09-22 Tisch mit Schwingarm zum Zusammenbau von Trägerfachwerken und Methode dazu
AU48877/99A AU755085C (en) 1999-09-21 1999-09-22 Truss table with flipper and method of use
ZA9906203A ZA996203B (en) 1999-09-21 1999-09-29 Truss table with flipper and method of use.

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
PCT/US1999/021901 WO2001021355A1 (en) 1999-09-21 1999-09-21 Truss table with flipper and method of use
CA002282987A CA2282987C (en) 1999-09-21 1999-09-21 Truss table with flipper and method of use
EP99307491A EP1087071A1 (de) 1999-09-21 1999-09-22 Tisch mit Schwingarm zum Zusammenbau von Trägerfachwerken und Methode dazu
AU48877/99A AU755085C (en) 1999-09-21 1999-09-22 Truss table with flipper and method of use
ZA9906203A ZA996203B (en) 1999-09-21 1999-09-29 Truss table with flipper and method of use.

Publications (1)

Publication Number Publication Date
EP1087071A1 true EP1087071A1 (de) 2001-03-28

Family

ID=28046551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99307491A Withdrawn EP1087071A1 (de) 1999-09-21 1999-09-22 Tisch mit Schwingarm zum Zusammenbau von Trägerfachwerken und Methode dazu

Country Status (4)

Country Link
EP (1) EP1087071A1 (de)
AU (1) AU755085C (de)
CA (1) CA2282987C (de)
ZA (1) ZA996203B (de)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258792B (de) * 1962-04-27 1968-01-11 Davy & United Eng Co Ltd Verfahren und Vorrichtung zum seitlichen Auseinanderruecken und Aussondern von langgestreckten vierkantigen Gegenstaenden
US3785277A (en) * 1972-07-26 1974-01-15 Truswal Syst Inc Apparatus and method for making trusses
DE2448545A1 (de) * 1974-10-11 1976-04-22 Bbc Brown Boveri & Cie Querfoerdereinrichtung fuer langgestreckte werkstuecke
US4645113A (en) * 1982-12-13 1987-02-24 Webber Ronald R Container making device
US4846923A (en) * 1986-03-24 1989-07-11 Mitek Industries, Inc. Production line assembly for making wooden I-beams
US5379513A (en) * 1992-09-24 1995-01-10 Viking Engineering & Development, Incorporated Automated nailing device
US5617622A (en) * 1995-06-06 1997-04-08 Anderson; Tommy G. Rotatable work platform with clamps for wall and truss fabrication
FR2773097A1 (fr) * 1997-12-31 1999-07-02 De Rocheprise Laurent Moret Dispositif ameliorant la production d'ouvrages assembles par clouage ou vissage sur 2 faces d'elements planes

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258792B (de) * 1962-04-27 1968-01-11 Davy & United Eng Co Ltd Verfahren und Vorrichtung zum seitlichen Auseinanderruecken und Aussondern von langgestreckten vierkantigen Gegenstaenden
US3785277A (en) * 1972-07-26 1974-01-15 Truswal Syst Inc Apparatus and method for making trusses
DE2448545A1 (de) * 1974-10-11 1976-04-22 Bbc Brown Boveri & Cie Querfoerdereinrichtung fuer langgestreckte werkstuecke
US4645113A (en) * 1982-12-13 1987-02-24 Webber Ronald R Container making device
US4846923A (en) * 1986-03-24 1989-07-11 Mitek Industries, Inc. Production line assembly for making wooden I-beams
US5379513A (en) * 1992-09-24 1995-01-10 Viking Engineering & Development, Incorporated Automated nailing device
US5617622A (en) * 1995-06-06 1997-04-08 Anderson; Tommy G. Rotatable work platform with clamps for wall and truss fabrication
FR2773097A1 (fr) * 1997-12-31 1999-07-02 De Rocheprise Laurent Moret Dispositif ameliorant la production d'ouvrages assembles par clouage ou vissage sur 2 faces d'elements planes

Also Published As

Publication number Publication date
AU4887799A (en) 2001-10-18
AU755085B2 (en) 2002-12-05
CA2282987A1 (en) 2001-03-21
AU755085C (en) 2004-02-26
ZA996203B (en) 2000-07-26
CA2282987C (en) 2003-09-09

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