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US3915444A - Wood structure fabricating apparatus with magnetic hold-downs - Google Patents

Wood structure fabricating apparatus with magnetic hold-downs Download PDF

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Publication number
US3915444A
US3915444A US534753A US53475374A US3915444A US 3915444 A US3915444 A US 3915444A US 534753 A US534753 A US 534753A US 53475374 A US53475374 A US 53475374A US 3915444 A US3915444 A US 3915444A
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US
United States
Prior art keywords
stand
floor surface
wood
stands
members
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
US534753A
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English (en)
Inventor
Walter George Moehlenpah
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.)
Gang Nail Systems Inc
Mitek Holdings Inc
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
Priority to US534753A priority Critical patent/US3915444A/en
Application filed by Individual filed Critical Individual
Publication of US3915444A publication Critical patent/US3915444A/en
Application granted granted Critical
Priority to AU87380/75A priority patent/AU497425B2/en
Priority to CA241,314A priority patent/CA1018745A/en
Priority to SE7513922A priority patent/SE419252B/sv
Priority to GB5109875A priority patent/GB1469092A/en
Priority to ZA757816A priority patent/ZA757816B/xx
Priority to FR7538969A priority patent/FR2295182A1/fr
Priority to JP15271175A priority patent/JPS5439074B2/ja
Priority to DE19752557393 priority patent/DE2557393A1/de
Assigned to MOEHLENPAH INDUSTRIES INC A MO CORP reassignment MOEHLENPAH INDUSTRIES INC A MO CORP ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WATER G MOEHLENPAH
Assigned to MITEK INDUSTRIES, INC. reassignment MITEK INDUSTRIES, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE APRIL 17, 1986 Assignors: MOEHLENPAH INDUSTRIES, INC.,
Assigned to GANG-NAIL SYSTEMS, INC. reassignment GANG-NAIL SYSTEMS, INC. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: MITEK INDUSTRIES, INC., A CORP. OF MO., (MERGED INTO)
Assigned to MITEK HOLDINGS, INC. reassignment MITEK HOLDINGS, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MITEK INDUSTRIES, INC.
Anticipated expiration legal-status Critical
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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • 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
    • 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
    • Y10S269/00—Work holders
    • Y10S269/91—Work holder for prefabricated roof truss or wall frame

Definitions

  • ABSTRACT Apparatus for holding wood members of a wood structure to be fabricated, such as the chord and web members of a wood'truss, in position for being secured together at intersections between the wood members, as by driving nailing plates into the wood members from above and below.
  • This apparatus comprises a plurality of stands for supporting the wood members at their intersection, :and clamps for releasably clamping the wood members in position for being secured together by the nailing plates.
  • the apparatus further comprises a magnetizable floor surface with at least one of the stands being readily movable on the floor surface to a desired position for supporting the wood members of the wood structure to be fabricated.
  • This stand has one side thereof, facing generally outwardly of the truss, constituting the outside of the stand and has another side, opposite the one side, constituting the inside of the stand.
  • This invention relates to apparatus for fabricating wood structures, such as prefabricated wood roof trusses or the like, and more particularly relates to such apparatus which holds the wood members in position to be secured together by nailing plates driven thereinto at the intersections or joints of the wood members.
  • Conventional wood truss fabricating apparatus utilize a plurality of stands adjustably movable independently of one another to positions corresponding to the intersections (i.e., the joints) of the wood members of the truss to be formed. Each time a new size or type of truss is to be fabricated on the apparatus, these stands must be moved to new positions so as to support the intersections of the wood members of the new truss to be formed. This rearrangement of the stands may have to be done several times a day as various truss sizes and configurations are fabricated.
  • a line of stands is movable along a track for being selectively positioned at various locations along the lower chord of the truss to support the wood members at the joints of the truss. These stands may be releasably clamped to the track at any desired position therealong. Other stands slidable on the floor may be positioned along the upper chord of the truss and secured in a desired position by means of telescoping support links to the stands previously positioned along and clamped to the track.
  • apparatus of this invention comprises a plurality of stands for supporting the wood members at their intersections, and means for releasably clamping the wood members in position for being secured together by nailing plates.
  • At least one of the stands is readily movable on a magnetizable floor surface to a desired position for supporting the wood members of the wood structure to be fabricated.
  • This stand has one side thereof, facing generally outwardly of the truss, constituting the outside of the stand and has another side, opposite this one side, constituting the inside of the stand.
  • This stand further has a first horizontal axis of symmetry extending generally from the outside to the inside of the stand and a second generally horizontal axis of symmetry perpendicular to the first axis.
  • the stand also includes means for supporting the stand comprising a pair of support legs, one on each side of the first axis, and engageable with spaced localized areas on the floor adjacent the outside of the stand. Means are provided on this one stand for lifting the stand clear of engagement with the floor surface for moving the-stand from one position to another.
  • the stand also has selectively energizable electromagnetic hold-down means engageable with the floor surface for magnetically gripping the floor surface so as to positively hold the stand in a desired position on the floor surface and to resist forces applied by the wood members which tend to tip the stand outwardly relative to the wood structure.
  • the hold-down means is positioned on the side of the second axis adjacent the inside of the stand so that with the stand supported on the floor surface by the magnet and by the support legs, the magnet, when energized, grips the floor surface and positively holds the stand in position thereon and effectively resists the tipping forces applied to the stand.
  • FIG. 1 is a plan view of apparatus of this invention for fabricating a-wood truss, the apparatus having a-plurality of adjustably movable stands;
  • FIG. 2 is an enlarged side elevational view taken on line 22 of FIG. I of one of the stands supporting a wood member;
  • FIG. 3 is a front elevational view of the stand of FIG.
  • FIG. 4 is an enlarged bottom view of the stand
  • FIG. 5 is a vertical cross sectional view taken on line 5-5 of FIG. 4;
  • FIG. 6 is an enlarged vertical cross sectional view taken on line 66 of FIG. 5 rotated with some of the parts broken away for clarity.
  • apparatus of this invention holds wood members W of a wood structure S to be fabricated in position for being secured together at the intersections of joints between the wood members. More particularly, apparatus l is shown holding thw web and the chord members 3 and 5, respectively, of a roof truss in position for being secured together by nailing plates 7 driven into the wood members at their joints from above and below by a hydraulic press (not shown) movable from joint to joint.
  • the apparatus comprises a plurality of stands 9 for supporting the wood members at their intersections and for securely holding the wood members in position prior to being joined by nailing plates 7. Stands 9 have means, as generally indicated at 11 in FIG.
  • clamping means 11 may be quick-release clamps as shown in U.S. Pat. No. 3,068,484 for clamping the wood members in position on the stands and enabling the completed truss readily to be removed from the stands.
  • Apparatus 1 further comprises a magnetizable floor surface 13 (e.g., a plurality of abutting steel plates) with stands 9 being readily movable thereon for movement to a desired position on the floor surface corresponding to the joints of a truss to be fabricated.
  • a magnetizable floor surface 13 e.g., a plurality of abutting steel plates
  • stands 9 being readily movable thereon for movement to a desired position on the floor surface corresponding to the joints of a truss to be fabricated.
  • Each of the stands which is movable on the magnetizable floor has first and second horizontal axes, as indicated at X-X and YY, respectively (see FIG. 4), which intersect at right angles to one another and which may generally be considered to be the axes of horizontal symmetry of the stand.
  • the first axis XX extends generally from the front or outside to the back or inside of the stand and the second axis YY is generally perpendicular to the XX axis. While the wood member W in FIG. 4 is shown to be parallel to the YY axis, it will be understood that the wood members may be angled relative to the YY axis.
  • a pair of support legs 14a, 14b are provided on the stand, one on each side of the XX axis.
  • Each of these legs is engageable with a small, localized area of floor 13 immediately therebelow and constitutes means for supporting the stand.
  • Lifting means, or more particularly roller means, as generally indicated at 15, are provided on each stand, these roller means being movable between a lowered extended position (see FIGS. 5 and 6) in which the roller means are in rolling engagement with magnetizable floor 13 and the stand is lifted clear of the floor for permitting the stand readily to be rolled from one position to another, and a raised retracted position (as shown in FIGS. 2 and 3) in which the stand is in engagement with the floor.
  • other means such as an airlift system as shown in U.S. Pat. No. 3,728,958, may be used to lift the stands for movement and repositioning.
  • the assembled truss members are further prestressed to bow the bottom chord slightly upwardly to effect a preset camber in the truss, so that after completion and subject to the expected structural loads imposed, the truss chords will be straight. This, if course, further increases the net outward forces on the stands.
  • the stand also includes magnetic hold-downs, generally indicated at 17, which are engageable with floor 13 and which magnetically grip the magnetizable floor so as to positively hold or clamp the stand in any desired position on the steel floor and to effectively resist these forces applied to the stand which tend to tip the stand outwardly relative to the truss.
  • Hold-downs 17 are shown to comprise at least one and preferably a pair of selectively energizable electromagnets 19a and 19b. As shown in FIG. 4, magnets 19a, 19b are on opposite sides of axis XX and both of the magnets are on the side of axis YY adjacent the inside of the stand (i.e., toward the truss).
  • roller means 15 in their raised retracted position and with the stand supported on floor 13 by legs 14a, 14b at the outside of the stand and by magnets 19a, 19b at the inside of the stand, the magnets, when energized, magnetically grip the floor to positively hold the stand in position and to resist the tipping forces exerted on the stand.
  • each stand 9 movable on magnetizable floor 13 includes a rigid frame having spaced, vertical side members 21, a base 23, members 25 for supporting the wood members on the stand, and a locator plate 27 below members 25 for holding a lower nailing plate.
  • This locator plate is movable upwardly toward the wood members by the press to drive the lower nailing plate into wood members from below.
  • Horizontal braces 29 span the space between the wide members and the various parts are secured together, as by welding.
  • stand 9 is generally similar to the stand shown in the above-mentioned U.S. Pat. No. 3,068,484.
  • stand base 25 includes the base plates 31a, 31b at the ends of the stand extending parallel to the XX axis and braces 33a, 33b at the front and back of the stand, respectively, extending parallel to the YY axis.
  • legs 14a, 14b are hollow and are secured, as by welding, to base 25.
  • a third leg 35 essentially identical to legs 14a, 14b is positioned on the XX axis adjacent the inside of the stand is also welded to base 25. These legs are of square cross section hollow metal tubing or the like.
  • legs 14a, 14b are respectively secured to base plates 31a, 31b on opposite sides of axis XX at the front or outside of the stand and leg 35 is secured to brace 33b at the back of the stand on axis XX.
  • magnets 19a, 19b are adjustably secured to base 25 by bolts 36.
  • the bottom faces of the magnets are positioned at or slightly below the bottoms of legs 14a, 14b and leg 35 so as to insure that the magnets engage floor 13, even if the floor is wavy.
  • Roller means 15 are shown to be ball caster units, such as manufactured by the Matthews Conveyor Company of Ellwood City, Penn., having a ball roller 37 free to rotate about any axis thereby permitting the stand freely to be moved in any direction on floor 13. As shown in FIG. 6, each ball roller 37 is mounted in a caster housing 39 (of generally circular cross section).
  • a generally square cross section guide block. 40 is secured to the upper end of housing 39 and the caster housing and the guide block are movable vertically within their respective legs 14a, l4b and 35 between an extended position (seeFIG. 6) corresponding to the above-mentioned lower extended position of roller means in which ball roller 37'extends below its respective leg and engages floor 13 and a' raised position in which the ball roller is clear of the floor.
  • This lastmentioned position corresponds to the above-- mentioned raised retracted position of roller means 15.
  • stand9 is supportedon floor l3 by legs" 14a, 14b and by magnets 19a, 19b since the magnets and these legs are located on opposite sides of the center of gravity of the stand (which is located near the intersection of the XX and Y-Y axes), and since'the magnets preferably extend slightly below the plane established by'the bottoms of legs 14a, I45 and In this manner, contact of the'mag'nets with floor 13 is insured regardless of unevenness or waviness of the floor. Thus, air gaps between the bottom" faces of the magnets and the floor are minimized andmag nets 19a, 19b exert their maximum available gripping force on floor'13.
  • Each ball roller 37 is raised'and lowered relative to its respective leg 14a, 1411101 350 by means of a camoperated linkage arrangement generally indicated at 41 for effecting simultaneousr'novern'ent of the rollers between their raised retracted' and lower extended positions.
  • This linkage arrangement is shown to comprise a shaft 43 joumalled in guide blocks of the front caster units. Openings 44 (see FIG. 5) in the sides of legs 14a and -l4b surround shaft 43, 'these openings being substantially larger than the diameter of the shaft.
  • Cams 45 are carried by the shaft adjacent legs 14a and 14b, and are engageable with stationary cam followers 46 secured to the legs and the base 25 of stand 9'adjacent openings 44.
  • cams 45 engage their respective cam followers 46 and cause the shaft .to move down relative to openings 44 thus effecting relative movement between guide blocks 40 and legs 14a and 14b so as to effect movement of the rollers from their raised retracted to their lowered extended positions. With the rollers in their lowered extended positions, it will be understood. that the weight of the stand is carried by cams 45. As is best shown in FIG. 6, cams 45 have flats 47 thereon engageable with their cam followers 46 when the rollers are in their lowered extended position thereby to positively maintain the rollers in their lowered extended positions.
  • a stubshaft 48 is joumalled in guide block 40 ofthe roller in rear leg 35, this stubshaft'extending sidewise of the leg 35 through enlarged openings 44 there.
  • Stubshaft 48 carries earns 45 on the outside of leg 35 engageable with stationary cam followers 46.
  • Stubshaft 48 is interconnected to shaft 43 by means of cranks 49 and 50 secured to shaft 43 and stubshaft 48, respectively, and by a link 51 pinned between the ends of the cranks.
  • magnets 19a, 19b located adjacent the inside of stand 9, it is seen that they are distal from the outer edges of legs 14a, 14b (about which the stand tips). minimizes the vertical restraining forces required to be exerted by the magnets to prevent the stands from tipping and thus maximizes the bearing force (and hence the friction) of the magnets on the floor.
  • the frictional force between the magnets and the floor and the frictional force between legs 14a, 14b and the floor is sufficient to resist the horizontal forces applied to the stand by the jigged and clamped wood members even under adverse operating conditions.
  • the necessity to periodically halt production of trusses to reposition the stand is eliminated.
  • a guide rail 59 (see FIGS. 1, 2 and 5) may be secured to floor 13 to aid in aligning a row of stands 9 along a straight line, as it may be desired to align stands along the lower chord of a truss. With the outer faces of legs 35a, 35b of each stand in engagement with rail 59, the alignment of the lower chord stands is insured,
  • Apparatus for holding wood members of a wood structure to be fabricated, such as the chord and web members of a wood truss, in position for being secured together at intersections between the wood members, as by driving nailing plates into the wood members from above and below said apparatus comprising a plurality of stands for supporting the wood members at their intersections, and means for releasably clamping the wood members in position for being secured together by said nailing plates, said apparatus further comprising a magnetizable floor surface with at least one of the stands being readily movable on the floor surface to a desired position for supporting the wood members of the wood structure to be fabricated, said one stand having one side thereof facing generally outwardly of the truss constituting the outside of said stand and having another side opposite said one side constituting the inside of said stand, said one stand having a first horizontal axis of symmetry extending generally from the outside to the inside of the stand and a second generally horizontal axis of symmetry perpendicular to the first axis, means for supporting the stand including
  • said hold-down means comprises a pair of electromagnets adjacent the inside of said stand, one on each side of the first axis.
  • Apparatus as set forth in claim 2 in which said lift-. ing means comprises roller means movable from a lowered extended position in which they extend below the supporting means and said magnets for engagement with said floor surface thereby to lift the stand clear of the floor surface for moving the stand from one position to another and a raised retracted position in which the supporting means and said magnets are in engagement with the floor surface.
  • each of said legs is hollow, said roller means being located within said hollow legs for movement between their stated lowered extended and raised retracted positions.
  • Apparatus as set forth in claim 5 further comprising linkage means interconnecting said roller means for effecting simultaneous movement of said roller means between their lowered extended and raised retracted positions.
  • roller means are ball rollers rotatable about any axis for permitting said one stand to be moved in any horizontal direction on said floor surface on said rollers when the latter are in their lowered extended position.
  • Apparatus as set forth in claim 1 further comprising 'a plurality of stands similar to said one stand whereby said stands are readily repositioned on said floor surface so as to permit the ready fabrication of wood structures of various configurations.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Automatic Assembly (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
US534753A 1974-12-20 1974-12-20 Wood structure fabricating apparatus with magnetic hold-downs Expired - Lifetime US3915444A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US534753A US3915444A (en) 1974-12-20 1974-12-20 Wood structure fabricating apparatus with magnetic hold-downs
AU87380/75A AU497425B2 (en) 1974-12-20 1975-12-09 Wood structure fabricating apparatus with magnetic hold-downs
CA241,314A CA1018745A (en) 1974-12-20 1975-12-09 Wood structure fabricating apparatus with magnetic hold-downs
SE7513922A SE419252B (sv) 1974-12-20 1975-12-10 Anordning for tillverkning av trekonstruktioner
GB5109875A GB1469092A (en) 1974-12-20 1975-12-12 Wood structure fabricating apparatus with magnetic hold downs
ZA757816A ZA757816B (en) 1974-12-20 1975-12-15 Wood structure fabricating apparatus with magnetic hold-downs
FR7538969A FR2295182A1 (fr) 1974-12-20 1975-12-19 Appareil pour fabriquer des structures en bois, avec des dispositifs de
DE19752557393 DE2557393A1 (de) 1974-12-20 1975-12-19 Vorrichtung zum festhalten der holzteile einer herzustellenden holzkonstruktion
JP15271175A JPS5439074B2 (sv) 1974-12-20 1975-12-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US534753A US3915444A (en) 1974-12-20 1974-12-20 Wood structure fabricating apparatus with magnetic hold-downs

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US3915444A true US3915444A (en) 1975-10-28

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US534753A Expired - Lifetime US3915444A (en) 1974-12-20 1974-12-20 Wood structure fabricating apparatus with magnetic hold-downs

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US (1) US3915444A (sv)
JP (1) JPS5439074B2 (sv)
AU (1) AU497425B2 (sv)
CA (1) CA1018745A (sv)
DE (1) DE2557393A1 (sv)
FR (1) FR2295182A1 (sv)
GB (1) GB1469092A (sv)
SE (1) SE419252B (sv)
ZA (1) ZA757816B (sv)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071061A (en) * 1976-10-20 1978-01-31 Schneider Fredric H On-site construction of roof trusses
FR2650526A1 (fr) * 1989-08-03 1991-02-08 Jeanniard Christian Appareil pour fabriquer des structures par exemple en bois, telles que des fermes pour charpentes, utilisant plusieurs socles munis d'un dispositif de maintien pneumatique a depression, permettant de les maintenir en place fermement
WO2006009800A1 (en) * 2004-06-17 2006-01-26 Truss Research Inc. Systems and methods for the automated fabrication of trusses
US20090235613A1 (en) * 2006-07-06 2009-09-24 Lars Englundh Device for Connecting a Framework of Length of Timber
EP2569492A1 (en) * 2010-05-10 2013-03-20 Autoprod OY Method and apparatus for manufacturing a wooden construction made of rod-like members

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524960A (en) * 1981-03-20 1985-06-25 Lepoire Robert A Adjustable jig
GB2117306B (en) * 1982-02-15 1985-09-18 Frederick Torr A board repair press
JPH0412427Y2 (sv) * 1988-08-02 1992-03-25
FR2760675A1 (fr) * 1997-03-17 1998-09-18 Le Charpentier Installation d'assemblage de pieces de bois pour la fabrication de charpente
CN109551433B (zh) * 2018-11-30 2022-06-24 英华达（上海）科技有限公司 可快速更换且可自动识别的载具

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US3068484A (en) * 1961-12-13 1962-12-18 Hydro Air Eng Inc Apparatus for fabricating wood structures
US3068483A (en) * 1960-07-22 1962-12-18 Hydro Air Eng Inc Apparatus for fabricating wood structures
US3241585A (en) * 1962-10-05 1966-03-22 Automated Building Components Universal jig assembly
US3358589A (en) * 1965-12-20 1967-12-19 Timber Engineering Co Wood roof truss fabrication apparatus
US3421751A (en) * 1966-12-23 1969-01-14 Troy Steel Corp Apparatus for fabricating wood structures
US3728958A (en) * 1968-01-08 1973-04-24 Hydro Air Eng Inc Apparatus for fabricating wood structures
US3749391A (en) * 1971-01-11 1973-07-31 Tct Engineering Inc Adjustable fixture means for maintaining wooden truss members in proper position during fabrication of a truss
US3752467A (en) * 1971-05-19 1973-08-14 Multi Systems Inc Portable roof truss and joist assembling apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068483A (en) * 1960-07-22 1962-12-18 Hydro Air Eng Inc Apparatus for fabricating wood structures
US3068484A (en) * 1961-12-13 1962-12-18 Hydro Air Eng Inc Apparatus for fabricating wood structures
US3241585A (en) * 1962-10-05 1966-03-22 Automated Building Components Universal jig assembly
US3358589A (en) * 1965-12-20 1967-12-19 Timber Engineering Co Wood roof truss fabrication apparatus
US3421751A (en) * 1966-12-23 1969-01-14 Troy Steel Corp Apparatus for fabricating wood structures
US3728958A (en) * 1968-01-08 1973-04-24 Hydro Air Eng Inc Apparatus for fabricating wood structures
US3749391A (en) * 1971-01-11 1973-07-31 Tct Engineering Inc Adjustable fixture means for maintaining wooden truss members in proper position during fabrication of a truss
US3752467A (en) * 1971-05-19 1973-08-14 Multi Systems Inc Portable roof truss and joist assembling apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071061A (en) * 1976-10-20 1978-01-31 Schneider Fredric H On-site construction of roof trusses
FR2650526A1 (fr) * 1989-08-03 1991-02-08 Jeanniard Christian Appareil pour fabriquer des structures par exemple en bois, telles que des fermes pour charpentes, utilisant plusieurs socles munis d'un dispositif de maintien pneumatique a depression, permettant de les maintenir en place fermement
WO2006009800A1 (en) * 2004-06-17 2006-01-26 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
US20090106979A1 (en) * 2004-06-17 2009-04-30 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
US20090235613A1 (en) * 2006-07-06 2009-09-24 Lars Englundh Device for Connecting a Framework of Length of Timber
US8359737B2 (en) * 2006-07-06 2013-01-29 Nordiska Truss Ab Device for connecting a framework of length of timber
EP2569492A1 (en) * 2010-05-10 2013-03-20 Autoprod OY Method and apparatus for manufacturing a wooden construction made of rod-like members
EP2569492A4 (en) * 2010-05-10 2013-12-25 Autoprod Oy METHOD AND DEVICE FOR PRODUCING A WOODEN CONSTRUCTION FROM BARRICH PARTICLES
AU2010353079B2 (en) * 2010-05-10 2014-12-11 Trussmatic Oy Method and apparatus for manufacturing a wooden construction made of rod-like members
US9126350B2 (en) 2010-05-10 2015-09-08 Autoprod Oy Method and apparatus for manufacturing a wooden construction made of rod-like members

Also Published As

Publication number Publication date
AU8738075A (en) 1977-06-16
JPS51110003A (sv) 1976-09-29
AU497425B2 (en) 1978-12-14
CA1018745A (en) 1977-10-11
ZA757816B (en) 1976-11-24
FR2295182A1 (fr) 1976-07-16
DE2557393A1 (de) 1976-06-24
SE7513922L (sv) 1976-06-21
GB1469092A (en) 1977-03-30
SE419252B (sv) 1981-07-20
JPS5439074B2 (sv) 1979-11-26
FR2295182B1 (sv) 1982-08-13

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