US3785277A - Apparatus and method for making trusses - Google Patents

Apparatus and method for making trusses Download PDF

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Publication number
US3785277A
US3785277A US00275147A US3785277DA US3785277A US 3785277 A US3785277 A US 3785277A US 00275147 A US00275147 A US 00275147A US 3785277D A US3785277D A US 3785277DA US 3785277 A US3785277 A US 3785277A
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United States
Prior art keywords
plate
roller
truss
press
members
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Expired - Lifetime
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US00275147A
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English (en)
Inventor
J Schmitt
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Truswal Systems Corp
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Truswal Systems Corp
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Assigned to HOUSEHOLD COMMERCIAL FINANCIAL SERVICES, INC., 2700 SANDERS ROAD, PROSPECT HEIGHTS, IL 60070 reassignment HOUSEHOLD COMMERCIAL FINANCIAL SERVICES, INC., 2700 SANDERS ROAD, PROSPECT HEIGHTS, IL 60070 SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TRUSWAL SYSTEMS CORPORATION
Assigned to TRUSWAL SYSTEMS CORPORATION, A CORP. OF DE reassignment TRUSWAL SYSTEMS CORPORATION, A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ITW TRUSWAL CORPORATION
Assigned to ITW TRUSWAL CORPORATION, A CORP. OF DE reassignment ITW TRUSWAL CORPORATION, A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: TRUSWAL SYSTEMS CORPORATION
Assigned to HOUSEHOLD COMMERCIAL FINANCIAL SERVICES, INC. reassignment HOUSEHOLD COMMERCIAL FINANCIAL SERVICES, INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TRUSWAL SYSTEMS CORPORATION, (A DE. CORP.)
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S100/00—Presses
    • Y10S100/913—Truss presses

Definitions

  • ABSTRACT Fabricating wood trusses with toothed connector plate joints upon a two-truss position support plate which is endwise slidably supported upon a roller table having a roller press arranged transversely of the middle of the table.
  • Pre-cut chords and web members are arranged at one side of the table and are loaded upon one plate position, with connector plates loosely posis tioned with their teeth down over the abutted joints and then the support plate is slid through the roller press to the other side of the table for press embedding the connector plate teeth into the members.
  • the apparatus and method herein relates to the fabrication of wood trusses, of various shapes and sizes, used as trusses or joists in building construction, such as for roof, deck and floor supports.
  • Such trusses are made of elongated wood chord members which are interconnected by wood web members, with the chords and web members fastened together at abutted joints by means of toothed metal connector or fastener plates applied to the opposite faces of the joints with their teeth embedded in the wood.
  • An example of this type of truss construction is disclosed in my 0.8. Pat. No. 3,651,612 issued Mar. 28, 1972.
  • An example of suitable connector or fastener plates is disclosed in my US. Pat. No. 3,633,454 granted Jan. I1, 1972.
  • the invention herein relates to an improved system and apparatus for more rapidly and efficiently fabricating such trusses and particularly securing the connector plates thereto, which system employs relatively simple apparatus which reduces labor requirements considerably.
  • the invention herein comtemplates forming wood trusses upon a large metal support plate on which precut truss members are properly aligned and including loosely positioning connector plates over the joints upon one face of the assembled truss members, and then sliding the plate endwise upon a low friction support table through a roller type press to embed the connector plates and thereafter turning the partially assembled truss upside down, positioning connector plates upon the opposite joint faces and running the plate with the truss back through the truss for embedding plates into the opposite joint faces.
  • the support plate is of double truss width and at least as long as a single truss.
  • four table positions are provided upon the apparatus, namely, (1) a first loading position where the trussmembers are assembled and clamped uponone side of the support plate and the connector plates are located upon the joints, (2) a second position at the opposite end of the table beyond the press from whichsecond position the truss may be removed and turned upside down into (3) a third position on the opposite side of the support plate and table so that while plates are positioned 'manually over the opposite faces of the joints, another truss may be assembled upon the support plate at the second position, duplicating the operation of the first position, and thereafter, the plate may be run back through the press to the opposite end of the table where the now completed truss is removed from (4) the fourth position and the partially assembled truss at the first position is inverted and placed into the fourth position where the cycle is repeated.
  • the foregoing system and apparatus simplifies the handling of the raw materials, namely, the pre-cut chord and web members and also simplifies the removal of completed trusses, considerably reduces labor and handling in the fabrication and thus speeds up the fabrication of trusses as well as substantially reducing the costs thereof.
  • FIG. 1 is a perspective view of the apparatus herein, with the support plate located at one end of the table and truss members loaded upon one side of the support plate.
  • FIG. 2 is a schematic plan view of the system and the various work stations thereof.
  • FIG. 3 is an enlarged, cross-sectional view taken generally in the direction of arrows 3-3 of FIG. 1.
  • FIG. 4 is an enlarged elevational view of one truss joint.
  • the apparatus is formed of an elongated, relatively narrow table 11 formed of two end to end arranged table halves 12 and 13 respectively.
  • the tables are formed of a large number of rollers 14 arranged side by side and rollingly secured to and supported by a suitable frame 15 in turn supported above ground level by legs 16.
  • a roller press 17 is located at roughly the middle of the table 11 and consists of an upper roller 18 and a lower roller 19, each arranged transversely of the table, with one roller spaced apart a short distance above the other.
  • the press rollers are supported by suitable support legs 20 which permit the rollers to rotate.
  • at least one of the rollers is motor driven by a suitable motor and connection 21 (shown schematically in FIGS. 1 and 2).
  • An elongated, flat support plate 24, preferably formed of a thin but relatively rigid sheet of metal is supported upon one of the halves of the table.
  • the support plate is at least as long as the truss to be fabricated and double the width of such trusses.
  • the support plate is divided into two elongated parts, namely, a load side or part 25 and an opposite unload :side or part 26.
  • Such plate may be made of a single sheet of suitable length and width or alternatively where the size is too great, it can be made of two long, parallel sheets which are coplanar and interconnected at their centers in some suitable way to form a single sheet unit of double truss width.
  • the support plate 24 is arranged upon one of the two table halves.
  • the table itself is divided into four stations, namely, load stations one and two located along one edge and the opposite ends of the table, and unload stations three and four similarly located on opposite ends of the table relative to the press.
  • Two piles 30 and 30a of pre-cut chord members 32 and web members 33 are arranged at the load stations, that is, at the opposite sides of the press alongside of the one edge of the table.
  • the plate is provided with a central guide bar 34 extending its length to function as a locator for one long chord member.
  • a second guide bar 35 is loosely positioned upon the upper surface of the plate at a distance from the central guide bar 34.
  • Suitable mechanical clamps 36 are arranged to clamp the movable guide bar 35 towards the fixed central guide bar 34.
  • a first chord may be positioned against the fixed guide bar 34, a second chord member against the movable guide bar 35, with the web members 33 located between to form abutting types ofjoints.
  • the wood members which are typically formed of conventional socalled 2 4s strips of lumber may be arranged with their wider cross-sectional edge upwards as illustrated in FIG. 3.
  • the clamps 36 may be applied to shove the movable guide bar 35 towards the fixed guide bar 34 and thereby tightly hold the parts in place.
  • Other suitable clamping means may be used.
  • the guide bar may be changed in shape or angularity, that is, for example, being V-shaped to accommodate a V- shaped truss as opposed to a parallel chord truss described above.
  • metal truss connector plate 39 which comprises a flat sheet of metal having struck-out teeth 40.
  • the teeth rest upon the upper surfaces of the wood members.
  • the entire plate 24 is slid endwise to the opposite half of the table so as to pass between the upper and lower press rollers 18 and 19 which are spaced apart a sufficient distance to accommodate and squeeze together the plate 24, the truss members and the connector plates. As the plate and truss passes between the two rollers, the connector plates are squeezed downwardly so that their teeth 40 embed in their wood members.
  • the plate is now located at stations 2 and 3.
  • the workmen unclamp the truss and turn it upside down so as to flip it from station 2 into station 3 where it may be reclamped.
  • workmen located at station 3 position connector or fastener plates over each of the now exposed joint faces while simultaneously workmen in station 2 load a new truss into position by taking chord members 32 and web members 33 from pile 30a. Likewise, they position connector plates over the joints.
  • the same workmen from station I normally walk to station 2 to perform the loading operation.
  • the workmen at station 4 remove the completed truss 38 and put it in a pile in back of them, while simultaneously the workmen in station 1 release the truss at that position, and flip it over into station 4. Again a new truss is assembled at station 1, plates are applied to the exposed joint faces at station 4, and the support plate is again rolled back through the press to repeat the cycle.
  • An apparatus for making large wood trusses and the like devices formed of elongated spaced apart coplanar chords interconnected by web members whose ends are abutted against and joined to the respective chord members by metal fastener plates positioned over the joints and having struck-out teeth embedded into the portions of the chord and web members at said joints comprising:
  • a press roller mounted transversely of the table at approximately the middle thereof, the roller extending substantially the full width of and spaced a short distance above the table;
  • a large, flat support plate divided into two plate portions, loosely supported upon and substantially covering the adjacent table quarter portions on one side of the press roller, with said plate being endwise slidable upon the table beneath the press roller from one end half of the table to the other;
  • locator means formed on the plate for locating precut chord and web members in assembled relationship upon each of the two plate portions;
  • roller and the space between the roller and the table being approximately equal to the thickness of the support plate and members located upon the support plate;
  • chord and web members may be manually assembled in abutting relationship upon one plate portion and fastener plates may be loosely positioned over each of the joints, with their teeth down and rested upon the members, and thereafter, the entire support plate may be slid endwise beneath the press roller to the opposite end of the table so that the fastener plates are pressed downwardly and their teeth are embedded into the respective members by the pressure of the roller, and the truss may then be turned upside down and positioned upon the opposite support plate portion, and fastener plates arranged teeth down upon the joints and the support plate slid back under the roller to its original position for embedding fastener plates into the members at the opposite faces of said joints, and thereafter, the completed truss may be removed from said other plate portion.
  • An apparatus for making large wood truss-like devices formed of elongated spaced apart, coplanar wood chord members interconnected by web members, with the adjacent ends of said members being abutted and fastenedtog'ether by metal fastener plates laid over the abutted joints in face to face relationship therewith and secured to the members by fastener plate struck-out teeth which are embedded into the adjacent member portions, comprising:
  • a press roller extending transversely of the table between the ends thereof, the press roller being mounted above and with its lowermost edge spaced a short distance above the plane of the table top;
  • locator means formed on the upper surface of the support plate for locating pre-cut chord and web members in acutting truss-forming assembled relationship upon said upper surface;
  • a fastener plate may be laid over each joint, teeth down, and the metal support plate with the members and fastener plates may be thereafter moved endwise beneath the roller press to the opposite ends of the table so that the roller press squeezes the fastener plates down against the members, in turn supported by the support plate, for embedding the fastener plates teeth into their adjacent member portions and the truss may then be turned upside down upon the metal support plate and fastener plates positioned over the opposite faces of the joints and the'support plate again slid endwise beneath the press roller to thereby embed the teeth of the fastener plates for completing the assembled truss.
  • pre-cut wood chord and web members for assembly into trusses are located adjacent one long edge of said one plate portion and on opposite sides of the roller press and the finished trusses are removed from said other plate portion at opposite sides of said roller plates.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
US00275147A 1972-07-26 1972-07-26 Apparatus and method for making trusses Expired - Lifetime US3785277A (en)

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855917A (en) * 1973-10-15 1974-12-24 Dayton Aircraft Prod Inc Truss plate press
US3868898A (en) * 1973-02-14 1975-03-04 Sanford Arthur C Rolling truss joint connector plates
US4005520A (en) * 1976-03-09 1977-02-01 Sanford Arthur C Frame structure fabricating system
US4287822A (en) * 1980-01-08 1981-09-08 Truswal Systems Corporation Truss assembly machine
EP0055201A1 (fr) * 1980-12-22 1982-06-30 Raymond Burger Procédé et dispositif d'assemblage de structures en bois
US4341153A (en) * 1980-01-08 1982-07-27 Truswal Systems Corp. Splicing and truss assembly apparatus and methods
US4514901A (en) * 1983-05-23 1985-05-07 Associated Truss Company Method and apparatus for attaching mounting plates
US5285720A (en) * 1992-10-02 1994-02-15 Wright Ronnie F Apparatus and method of manufacturing wood trusses
US5320516A (en) * 1991-12-07 1994-06-14 G. Siempelkamp Gmbh & Co. System for making belts
EP1087071A1 (en) * 1999-09-21 2001-03-28 MiTek Holdings, Inc. Truss table with flipper and method of use
US6260263B1 (en) 1997-10-06 2001-07-17 Mitek Holdings, Inc. Truss table with flipper
USRE37797E1 (en) 1997-10-15 2002-07-23 Mitek Holdings, Inc. Truss assembly apparatus with independent roller drive
US20040040452A1 (en) * 2002-08-30 2004-03-04 Mitek Holdings, Inc. Truss assembly apparatus
US20050071994A1 (en) * 2003-10-07 2005-04-07 Mitek Holdings, Inc. Adjustable table leg for truss fabrication system
US20060236524A1 (en) * 2004-06-17 2006-10-26 Truss Research, Inc. Systems and methods for the automated fabrication of trusses
US20080308184A1 (en) * 2007-06-15 2008-12-18 Gill William H Apparatus for hardening the head area of a wooden baseball bat
CN102229176A (zh) * 2011-07-05 2011-11-02 方国芳 木托盘生产流水线
WO2020242841A1 (en) * 2019-05-31 2020-12-03 House of Design LLC Systems and methods for pre-plating structural members
US20210114251A1 (en) * 2019-10-18 2021-04-22 Columbia Insurance Company Lumber assembly and finishing system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172125A (en) * 1962-10-03 1965-03-09 Sanford Ind Inc Truss fabricating apparatus
US3212694A (en) * 1962-11-26 1965-10-19 Sanford Ind Inc Apparatus for fabricating wooden structures
US3390627A (en) * 1966-04-13 1968-07-02 Structomatic Inc Method and apparatus for forming wood roof trusses or the like
US3439607A (en) * 1966-07-26 1969-04-22 Sanford Arthur C Method for fabricating trusses in upright position
US3602237A (en) * 1969-03-26 1971-08-31 Automated Building Components Wooden framing fabrication system
US3667379A (en) * 1971-01-11 1972-06-06 Templin Associates Inc Apparatus for prefabricating wood structures

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172125A (en) * 1962-10-03 1965-03-09 Sanford Ind Inc Truss fabricating apparatus
US3212694A (en) * 1962-11-26 1965-10-19 Sanford Ind Inc Apparatus for fabricating wooden structures
US3390627A (en) * 1966-04-13 1968-07-02 Structomatic Inc Method and apparatus for forming wood roof trusses or the like
US3439607A (en) * 1966-07-26 1969-04-22 Sanford Arthur C Method for fabricating trusses in upright position
US3602237A (en) * 1969-03-26 1971-08-31 Automated Building Components Wooden framing fabrication system
US3667379A (en) * 1971-01-11 1972-06-06 Templin Associates Inc Apparatus for prefabricating wood structures

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868898A (en) * 1973-02-14 1975-03-04 Sanford Arthur C Rolling truss joint connector plates
US3855917A (en) * 1973-10-15 1974-12-24 Dayton Aircraft Prod Inc Truss plate press
US4005520A (en) * 1976-03-09 1977-02-01 Sanford Arthur C Frame structure fabricating system
US4341153A (en) * 1980-01-08 1982-07-27 Truswal Systems Corp. Splicing and truss assembly apparatus and methods
US4287822A (en) * 1980-01-08 1981-09-08 Truswal Systems Corporation Truss assembly machine
FR2499452A1 (fr) * 1980-12-22 1982-08-13 Burger Raymond Procede et dispositif d'assemblage de structures en bois
EP0055201A1 (fr) * 1980-12-22 1982-06-30 Raymond Burger Procédé et dispositif d'assemblage de structures en bois
US4514899A (en) * 1980-12-22 1985-05-07 Raymond Burger Apparatus with optical projector for assembling a wooden structure
US4514901A (en) * 1983-05-23 1985-05-07 Associated Truss Company Method and apparatus for attaching mounting plates
US5320516A (en) * 1991-12-07 1994-06-14 G. Siempelkamp Gmbh & Co. System for making belts
US5285720A (en) * 1992-10-02 1994-02-15 Wright Ronnie F Apparatus and method of manufacturing wood trusses
US6260263B1 (en) 1997-10-06 2001-07-17 Mitek Holdings, Inc. Truss table with flipper
USRE37797E1 (en) 1997-10-15 2002-07-23 Mitek Holdings, Inc. Truss assembly apparatus with independent roller drive
EP1087071A1 (en) * 1999-09-21 2001-03-28 MiTek Holdings, Inc. Truss table with flipper and method of use
US20040040452A1 (en) * 2002-08-30 2004-03-04 Mitek Holdings, Inc. Truss assembly apparatus
US6807903B2 (en) 2002-08-30 2004-10-26 Mitek Holdings, Inc. Truss assembly apparatus
US20050071994A1 (en) * 2003-10-07 2005-04-07 Mitek Holdings, Inc. Adjustable table leg for truss fabrication system
US6976305B2 (en) 2003-10-07 2005-12-20 Mitek Holdings, Inc. Adjustable table leg for truss fabrication system
US20090106979A1 (en) * 2004-06-17 2009-04-30 Truss Research, Inc. Systems and methods for the automated fabrication of trusses
US7484289B2 (en) * 2004-06-17 2009-02-03 Truss Research, Inc. Systems and methods for the automated fabrication of trusses
US20060236524A1 (en) * 2004-06-17 2006-10-26 Truss Research, Inc. Systems and methods for the automated fabrication of trusses
US7987597B2 (en) 2004-06-17 2011-08-02 Cjp Ip Holdings, Ltd. Systems and methods for the automated fabrication of trusses
US20080308184A1 (en) * 2007-06-15 2008-12-18 Gill William H Apparatus for hardening the head area of a wooden baseball bat
US7841372B2 (en) * 2007-06-15 2010-11-30 Gill William H Apparatus for hardening the head area of a wooden baseball bat
CN102229176A (zh) * 2011-07-05 2011-11-02 方国芳 木托盘生产流水线
WO2020242841A1 (en) * 2019-05-31 2020-12-03 House of Design LLC Systems and methods for pre-plating structural members
US11541553B2 (en) * 2019-05-31 2023-01-03 House of Design LLC Systems and methods for pre-plating structural members
US11986951B2 (en) 2019-05-31 2024-05-21 House of Design LLC Systems and methods for pre-plating structural members
US20210114251A1 (en) * 2019-10-18 2021-04-22 Columbia Insurance Company Lumber assembly and finishing system

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Publication number Publication date
JPS5021524B2 (US06826419-20041130-M00005.png) 1975-07-23
JPS4942809A (US06826419-20041130-M00005.png) 1974-04-22

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