EP1165296B1 - Positioniersystem für trägerfachwerke - Google Patents

Positioniersystem für trägerfachwerke Download PDF

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Publication number
EP1165296B1
EP1165296B1 EP00919716A EP00919716A EP1165296B1 EP 1165296 B1 EP1165296 B1 EP 1165296B1 EP 00919716 A EP00919716 A EP 00919716A EP 00919716 A EP00919716 A EP 00919716A EP 1165296 B1 EP1165296 B1 EP 1165296B1
Authority
EP
European Patent Office
Prior art keywords
carriage
tool
truss
section
upper platform
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
EP00919716A
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English (en)
French (fr)
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EP1165296A1 (de
Inventor
John Tadich
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 claimed from AUPP9568A external-priority patent/AUPP956899A0/en
Priority claimed from AUPP9730A external-priority patent/AUPP973099A0/en
Application filed by Mitek Holdings Inc filed Critical Mitek Holdings Inc
Publication of EP1165296A1 publication Critical patent/EP1165296A1/de
Application granted granted Critical
Publication of EP1165296B1 publication Critical patent/EP1165296B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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 a jigging system for work pieces and, in particular, to a jigging system for the assembly of wooden trusses for use in building.
  • the invention relates to an improvement to that disclosed in our Australian Patent No. 694642 (U.S. Patent No. 5,854,747)
  • Wooden trusses generally comprise a number of wooden components including a bottom chord, upper chords which are generally arranged in a V-shaped configuration, and connecting pieces or webs between the chords.
  • the chords and connecting webs are joined together by metal connector plates which are usually forced into the wooden components at joints between components on both sides of the truss by a suitable press or the like.
  • the components from which the truss are to be made are laid out on a table which has stops (often referred to as pucks) for setting the position of the chords.
  • the above-mentioned Australian patent discloses an automatic method of moving the stops or pucks to desired locations to set the position of the chords which are to be joined together to form the truss.
  • the formation of the truss from the chords also requires the placement of various tools such as a peak or apex tool and clamp tools in order to define the position of the peak or apex and hold the two chords, which will be joined together to form the apex, in position.
  • Heel tools are also required in order to define the points at which the upper chords will intersect with the bottom chord. The location of these tools is performed manually by locating the tools in position on the table before or after the stops have been automatically moved to define the position of the chords.
  • the need to manually locate the tools increases the time required in order to set up the jigging system for formation of a truss and therefore the time required in order to actually produce a truss.
  • a jigging system for use in arranging components to form an assembly such as a truss
  • the jigging system comprising an upper platform having a top surface and spaced apart slots therein, at least one carriage mounted in one of said slots for sliding movement relative to the upper platform along said one slot, a component support for supporting the components in a position above the top surface of the upper platform, the component support being connected to the carriage and comprising a first portion engaging the carriage and a second portion spaced above the carriage and having an engaging surface engageable with one of the components, the second portion's engaging surface being adapted to resiliently deform upon application of downward force to the component to permit the component to engage the top surface of the upper platform, and to return to an original configuration upon release of the downward force.
  • an assembly table 10 is shown. Tables of this type may typically be up to 30 meters (100 feet) in length and 4.2 meters (15 feet) in width.
  • the table 10 has an upper platform generally indicated at 12, formed from solid sheets 12A or sections or the like which are spaced apart to define a plurality of slots 14 which, in the embodiment of Figure 1, extend across the width of the table. Rather than extend across the width of the table as shown in Figure 1, the slots 14 could also extend lengthwise or at an angle across the table if desired.
  • the upper platform 12 constitutes a reaction surface in the preferred embodiment.
  • a plurality of stops or pucks 19 Arranged for movement along the slots 14 in a manner to be described hereinafter are a plurality of stops or pucks 19.
  • the shape of a truss 20 is known and its details are fed into a control system 30, which controls movement of the pucks 19.
  • the pucks 19 are then moved in a manner which will be described hereinafter to positions needed to locate the truss components for forming the truss 20.
  • some of the slots 14, rather than being provided with pucks 19 are provided with other jigging tools.
  • Such jigging tools may include apex tools 19' and clamp tools 19'', described hereinafter.
  • tools as used herein includes the pucks 19, as well as apex tools 19', clamp tools 19'' or other suitable jigging tools. Such tools are necessarily arranged on the table 10 to define a jig for assembling the truss. Chords 20A, 20B and 20C from which the truss is to be formed are laid out together with webs 20D, with the chords abutting the pucks 19.
  • Connector plates C are located in generally opposed relation on top and bottom of the truss 20 at the joints of the chords 20A, 20B and 20C and the webs 20D, and the connector plates are driven into the truss 20 in a suitable manner such as by presses or the like (not shown) to form the truss 20.
  • the truss 20 is removed from the table 10 and new components, such as new chords which are the same as those referred to above, are located in place to form a new truss. If the shape of the new truss is different, the jig tools 19, 19', 19'' are first moved under the control of a control system 30 (Fig. 10) to new positions for locating truss components of the new truss.
  • FIGs 2 to 4 are detailed views showing two adjacent table sections 12A separated by one of the slots 14.
  • a carriage 100 is arranged within the slot 14 and is moved by a motor M and flexible endless belt 52 (Fig. 10A).
  • the details of the motor M and belt 52 are fully disclosed in our previously mentioned Australian patent, and will only be briefly described hereinafter. Suffice it to say that the carriage 100 is secured to the flexible belt 52 described in the above mentioned patent for movement along the slots 14 as the belt is driven back and forth by the motor M.
  • the carriage 100 has a top plate 102 which is supported on steps 106 and 108 of a guide rail 130 by blocks 110 which are attached by welding or the like to the top plate 102.
  • the top plate 102 supports a puck 19.
  • the carriage 100 can carry another tool such as an apex tool 19' ( Figure 5) for defining the apex of the truss to be formed or a clamp tool 19'' ( Figure 7).
  • the apex tool 19' and clamp tool 19" will be described in more detail with reference to Figures 5 to 7.
  • the carriage 100 further includes a carriage guide 120 located below the top plate 102.
  • the carriage guide is guided in the guide rail 130, in which are defined four channels 131, 132, 133 and 134.
  • the rail 130 is supported by a frame (not shown) beneath the table sections 12A and has inwardly projecting flange portions 171 which define the steps 106 and 108 with the sections 12A.
  • the carriage guide 120 is of generally box construction having side walls 121 and 122, top wall 124 and bottom wall 123.
  • the top wall 124 has extending flanges 128 and the bottom wall 123 has extending flanges 129.
  • the flanges 128 and 129 ride in the channels 131 to 134 on plastic strips 141 to facilitate sliding movement of the carriage 100 along the rail 130.
  • the carriage guide 120 is secured to the flexible belt 52 (see Figure 10A) which is driven by the motor M and drive rollers 46, 46' (as disclosed in our previously mentioned Australian patent) so that the carriage 100 is driven along the guide rail 130.
  • the top wall 124 of the carriage guide 120 carries a cylindrical sleeve 125 having an internal annular upper bushing 127 and an internal annular lower bushing 126 which have a space 144 between them.
  • the puck 19 is provided with a pin 140 which projects downwardly from the underside of the puck.
  • the pin 140 has a circumferential groove 149 in which is located a split ring retainer or circlip 142 (broadly, "resilient locking member") when the puck 19 is connected to the carriage 100.
  • Top plate 102 is provided with a hole 161 and the pin 140 passes through the hole and into the sleeve 125 which is aligned with the hole.
  • the pin 140 As the pin 140 moves downward past the upper bushing 127 and into the space 144, the pin engages the inner diameter of the circlip 142.
  • the leading end of the pin 140 is tapered, but the main portion of the pin has a diameter larger than the inner diameter of the circlip 142 so that the circlip is resiliently deflected outward from its relaxed position.
  • the circlip 142 snaps into the groove, attaching the pin 140 to the carriage. Further movement of the pin 140 axially of the sleeve 125 is resisted by engagement of the circlip 142 with the upper or lower bushings 127, 126 at the boundaries of the space 144.
  • the pin 100 snaps into a releasable locking engagement with the carriage 100 upon insertion into the sleeve 125.
  • the pin 140 also couples the top plate 102 to the carriage guide 120.
  • the top plate 102 and puck 19 are moved conjointly with it.
  • the top plate 102 slides on shoulders 106 and 108 via blocks 110 as carriage guide 120 and top plate 102 move.
  • a resilient truss component support 150 connected by the pin 140 to the carriage 100 holds a chord (such as the chord 20B shown in Fig. 3) above a top surface of the upper platform 12 of the table 10.
  • the support 150 comprises a metal spring plate 152 which has a hole 154 through which the pin 140 passes so that the plate 152 is secured to the carriage 100 on the top plate 102 by the pin 140.
  • the spring plate 152 extends substantially the length of the top plate 102 and rests at its ends on the top plate 102.
  • a raised central (“second”) portion 155 is higher than the level of the table sections 12A. Many or all of the carriages 100 carrying a puck 19 have the support 150 so that the supports collectively hold the chords 20A-20C and webs 20D off the upper platform 12.
  • the truss chords 20A-20C are supported above the level of the assembly table sections 12A so that tooth connector plates C can be positioned on the sections 12A beneath the chords 20A-20C.
  • the left heel of the truss 20 is broken away in Fig. 1 to reveal a connector plate C located on the bottom side of the truss.
  • Bottom side connector plates (not shown) are similarly located at the other joints of the truss 20.
  • the support plate 152 is formed from a resilient spring metal and has an end flange 153 which extends over the end of top plate 102 and into slot 14 so that the spring plate 152 cannot be inadvertently rotated relative to the top plate 102, and the spring plate 152 can be maintained in the operative position shown in Figures 2, 3 and 4 for supporting a chord 20B. Any tendency for the plate 152 to rotate in the directions indicated by double headed arrow A in Figure 2 will be prevented by the sides of the flange 153 contacting side walls 12B of the sections 12A.
  • the spring metal plate 152 holds the chords 20A-20C in a position slightly above the top of the upper platform 12.
  • connector plates can be slid, teeth up, under the chords 20A-20C and webs 20D at joint locations, or put in these locations prior to placement of the chords and webs on the upper platform 12.
  • Connector plates are also placed on top of the chords and webs at the joints.
  • a suitable press (not shown) applies a downward force to the chords, webs and connector plates.
  • the force of the press overcomes the spring force of the metal spring plates 152, deflecting the central portion 155 and pushing it down so that the top surface of the sections 12A of the upper platform 12 can provide a rigid reaction surface opposing the action of the press.
  • the teeth of the connector plates are driven by the press into chords 20A-20C and webs 20D as a result of the reaction force provided by the upper platform 12.
  • the spring plates 152 resume their prior configuration as soon as the press force is released. In this way, the carriage 100 is protected from experiencing the high loads from the press while permitting placement of connector plates under the chords and webs.
  • Figure 5 shows a plan view similar to Figure 2 except that an apex tool 19' for positively locating the apex of truss 20 is shown.
  • the apex tool 19' has a base plate 250 (closely similar to top plate 102) which is provided with a hole 252.
  • the base plate 250 has a block 110' (Fig. 6) at each end which ride on steps 106 and 108 of the guide rail 130 in the same manner as the blocks 110 attached to the top plate 102 of the carriage 100 described with reference to Figure 4.
  • An apex tool cross-member 251 is attached as by welding to the base plate 250 so the base plate (with the blocks 110') and cross-member are a single unit.
  • the cross-member 251 carries a retractable locating finger 253 which has a side edge 254.
  • the side edge 254 positions an angled end 255 of chord 20B of the truss 20 (shown in phantom) so that the chord can be correctly located in place at the apex of the truss.
  • the apex tool 19' is moved to the desired position by carriage 100 (as describe above for puck 19) so as to locate the locating finger 253 and therefore the edge 254 in the required position.
  • the locating finger 253 can be withdrawn (as indicated in hidden lines in Fig. 5) so that the other upper chord 20C can abut against the end of the chord 20B to thereby position the chord 20C.
  • the structure and mode of operation of the member 251 is conventional and therefore the apex tool 19' will not be shown or described in any further detail.
  • the blocks 110' of the apex tool 19' ride on the steps 106 and 108 which are formed at the ends of the portions 171 of the guide rail 130.
  • the upper plate 102 (with its attached blocks 110) of the carriage 100 is removed by simply removing the pin 140 which attaches the top plate 102 to the carriage guide 120 and lifting the top plate 102 out of the slot 14.
  • the base plate 250 is then placed in the slot 14 on the steps 106 and 108 and the hole 251 aligned with sleeve 125 of the carriage guide 120.
  • a pin 257 is then pushed through the aligned hole 251 and the sleeve 125 so that the pin 257 secures the apex tool 19' to the carriage guide 120 in exactly the same manner as the pin 140 secures the puck 19 to the carriage guide 120 described with reference to Figure 4.
  • a pin 140 can be provided by one of the pucks 19 previously described.
  • the pin 257 is a separate pin which is similar to the pin 140 except that the head 259 is substantially flat since the pin 257 need not form the function of the puck 19.
  • FIG 7 shows an embodiment in which a clamp tool 19'' is automatically moved by the carriage 100.
  • the top plate 102 is located in position in the same manner as described with reference to Figures 3 and 4.
  • the clamp tool 19'' is secured to the top plate 102 by the same type of pin 257 described with reference to Figures 5 and 6 and which passes through a hole 261 formed in the clamp tool 19''.
  • a puck 19 having the 5 pin 140 could be used instead of the pin 257.
  • the clamp tool 19'' is pivotal about the pin 257 to arrange the tool at right angles with respect to a chord 20C so that a clamp head 260 can engage the.chord 20C to push the chords 20A-20C and webs 20D together.
  • clamp tool 19'' Since the clamp tool 19'' is at right angles to the chord 20C, load applied by the chords against the clamp head 260 is in the direction of ram arm 262 and therefore does not tend to rotate the clamp 19'' on pin 257.
  • the clamp tool 19'' is of known design except of the inclusion of a hole through which the pin 257 can pass to secure the clamp tool 19'' to the top plate 102 of the carriage 100.
  • the carriage 100 is made up of the carriage guide 120 and the top plate 102.
  • the top plate 102 is effectively incorporated into the tool (such as the plate 250 which forms part of the apex tool 19') and therefore the carriage is effectively comprised of the carriage guide 120 and the tool defines the top plate (such as plate 250) and blocks (such as blocks 110') connected to the plate 250 which slide on the steps 106 and 108 on the guide rail.
  • Figures 8 and 9 illustrate in more detail the configuration of the guide rail 130.
  • the guide rail 130 is formed from two inverted L-shaped rail members 301 which are arranged in face to face or mirror image relationship with respect to one another.
  • the rail members 301 have the inwardly projecting flange portions 171 which, together with the sections 12A define the steps 106 and 108 upon which the top plate 102 or the base plate 250 of the apex tool 19' ride.
  • the flange portions 171 are supported by side walls 302.
  • the side walls 302 are coupled together by a plurality of lower plates 135 which are welded to lower edges of the side walls at locations spaced along the length of the guide rail 130.
  • the flanges 171 also each have spaced apart holes 307 which facilitate bolting of the sections 12A of the platform 5 12 to the flanges.
  • Elongate bars 305 are welded to the inner surfaces of the side walls 302 of the guide rail 130 so as to define the channels 131, 132, 133 and 134.
  • Some of the plates 135 carry sleeves 311 so that jacks or other suitable supporting structure (not shown) can be engaged with the sleeves to support the guide rails 130 above ground level.
  • I-beams (not shown) may be provided between adjacent guide rails 130 for supporting mid portions of the sections 12A.
  • the I-beams are attached to a conventional frame of the table 10.
  • the sections 12A of the upper platform 12 are supported by the guide rails 130 as well as additional frame members formed at least partly by the I-beams (not shown).
  • a jig tool 19, 19' or 19'' may be secured to the top plate 102 and carriage 120 which covers substantially the entire plate 102. If the support of the chord 20B at that particular top plate 102 is not required, the spring plate 152 can simply be lifted up slightly so as to raise the flange 153 above the top surface of the sections 12A and then the plate 152 can be rotated about the pin 140 into a position 180° from that shown in Figures 2 and 3 to move the spring plate 152 into a non-operative position and out of any interference with the tool to be supported on the top plate 102.
  • the spring plate 152 could be moved into the non-operative position as shown in phantom in Figure 7 so that the central portion 155 does not interfere with correct positioning of the clamp tool 19'' relative to the top plate 102 and the chord 20C.
  • This enables the spring plate 152 to be moved out of the way while retaining the spring plate on the apparatus for convenient repositioning should the respective carriage 102 again be required to support one of the chords 20A-20C above the platform 12.
  • Retention of the spring plate 152 on the carriage 100 also prevents misplacement of the spring plates or accidental loss of the spring plates when they are not in use.
  • FIGS 10 and 10A schematically illustrate the control system 30 for controlling the jig.
  • the control system 30 includes a portable computer PC which is coupled to a controller 80.
  • the controller 80 is then in turn coupled to motor M, encoder 68 and also controls solenoid 70 and disc brakes 66.
  • One controller 80 can be used to control, for example, six pucks 19, six other jig tools (e.g., 19', 19''), or some combination of pucks and other tools. In the instance where the table 10 has forty-two tools (including pucks 19), seven controllers 80 connected to the PC for controlling the jig are used.
  • the controller 80 which controls each set of six tools (19, 19' or 19'') will also control the associated motor M, encoder 68, brakes 66 and solenoid 70 associated with those tools.
  • Each of the controllers 80 therefore is controlling six of the tools (19, 19' or 19'').
  • the controller 80 obtains information identifying the position of each of the tools which it is to control. The information is fed to the controller 80 from the encoder 68 on the pulleys 46. It should also be noted that all of the tools could be under the control of a single controller 80 rather than a number of controllers and all driven simultaneously to their desired positions under the command of the controller 80. Conceivably, a greater number of controllers could be employed.
  • information relating to a truss layout is fed into the PC and that information is then provided to the controller 80.
  • the tools 19, 19', 19'' are moved to a zero position by the controller 80.
  • the controller 80 selects one of the tools, e.g., one of the pucks 19, and knowing the position of the puck 19, it will compare the required position to the actual position of the puck.
  • a command is issued from the controller 80 to the brake 66 associated with the relevant puck 19 so that the brake is released.
  • An output is supplied to solenoid 70 to ensure that the shaft 60 is moved axially into the position so that the spline 62 or 64 engages the appropriate pulley 46 and a voltage is supplied to the motor M to drive the shaft 60 at high speed.
  • the shaft 60 rotates the pulley 46 to drive the appropriate belt 52 about the pulleys 46 and 48 to move the carriage 100 to the desired position to correctly position the puck 19.
  • the motor speed is switched to low speed by the controller 80. Typically this will occur after one or two seconds of running.
  • the controller 80 issues a signal to disc brake 66 to apply the brake to stop the pulley 46 so that the tool 19 comes to rest at the required position.
  • the motor M is then switched off.
  • the specific number of counts at which the motor is reduced to low speed and at which the brake is applied can be determined by the system response time and could be adjustable and preset in the controller 80.
  • the controller selects another tool (19, 19' or 19'') so that the next tool can be moved.
  • the solenoid 79 is operated to disengage splines 62 of the shaft 60 from the pulley 46 and to engage the other spline 64 with its pulley 46'. The same procedure as outlined above is then repeated to position the other tools.
  • any truss configuration only some of the tools 19, 19', 19'' which may be provided may be used. Those tools which need not be used for a particular truss configuration can be controlled so that they are moved to the edge of the table so that they are completely out of the way of the truss 20 which is to be manufactured.
  • the pucks 19 are coupled to top plates 102 and carriages 120 by a pin 140 so that the pucks 19 can be released from any of the respective carriages in a similar fashion to the tools 19', 19''.
  • the tools 19, 19', 19'' are released from their carriage guides 120 by simply prying the pin 140 upward from the sleeve 125 by means of a screwdriver or any other suitable tool.
  • the upward motion of the pin 140 overcomes the spring force of the circlip 142 and drives the circlip out of the groove 149 and into the space 144 so the pin can be withdrawn from the sleeve 125.
  • the easy removal and replacement of the jig tools 19, 19' or 19" enables a particular jig tool to be associated with any one of the carriages 100 associated with any one of the slots 14.
  • the processor PC will determine at which of the slots 14 the apex 21 of the truss is to be located and will show this either graphically, numerically or otherwise on a display screen. If an apex tool 19' is not already associated with the slot 14, the apex tool associated with one of the other slots 14 can be removed by releasing the pin 140 as described above and the apex tool snapped into connection with the carriage 100 associated with the appropriate slot 14. Similarly, other tools such as clamp tool 19'' and pucks 19 can be released from particular carriages 100 and connected to other carriages 100 under the direction of the PC. The PC then controls the carriages 100 as described above to position the tools 19, 19' and 19" in the required position for enabling the chords 20A-20C (and web 20D in the embodiment shown in Figure 1) to be located and fastened together by the connector plates previously described.
  • FIGs 11 to 14 show a further embodiment in which a heel tool for locating the heel position of a truss is shown.
  • the heel tool 400 is not movable along the channels 14 as is the case with the tools 19, 19', 19'' previously described but is fixed in position to the table 10 by pairs of holes 401 and 402 which are provided on some or all of the sections 12A of the upper platform 12.
  • two rows (labeled C and D) of holes 401 and 402 are shown.
  • the heel tool 400 is fixed to one of the hole pairs 401 and 402 in row C on the section 12A' shown in Figure 11.
  • the holes 401, 402 are covered by the tool 400 in Figure 11.
  • the tool 400 has a base section 403 and a heel point section 405 which is moveable relative to the base section 403.
  • the base 403 has a recess 431 in which is located a head 409 arranged on a pin 407, which pin is located in the hole 401 shown in Figure 11.
  • the base 403 also carries an elongate hole 415 which carries a floating pin 419 for location in the hole 402 in the section 12A' shown in Figure 11.
  • the pins 407 and 419, as well as the holes 401 and 402 are preferably configured similar to the pin 140 and sleeve 125 previously described for secure releasable connection.
  • the floating pin 419 in the elongated groove 415 provides some degree of movement of the pins 407 and 419 relative to one another to ensure that they can properly locate in the precision drilled holes 401 and 402.
  • the ability to locate the tool 400 on the assembly table 20 and then simply move the heel point section a short distance to define the heel point location enables quick and accurate determination of the heel point location and positioning the tool 400.
  • the PC When the truss 20 is being formed, the PC will identify the heel point location for the truss 20 which is to be formed and will then display the holes 401 and 402 to which the heel tool 400 should be attached. The PC will then indicate the amount of movement of the heel point section 405 relative to the base 403 which is required in order to position a heel point locating tab 412 on the tool 400 at the desired point to identify the heel location of the truss 20.
  • the section 405 carries a scale 411, and the base 403 a pointer 447.
  • the computer can indicate a value on the scale 411 which should be aligned with the pointer 447 to locate the heel point section 405 in the desired position relative to the base 403 for positioning the heel point locating tab 412 at the required place on the assembly table 400.
  • the heel point section 405 is formed from a generally C-shaped channel having bottom wall 405A, end wall 405C and top wall 405B.
  • a pair of inwardly directing flanges 455 and 456 define a narrow slot 471 in the heel point section 405.
  • the base 403 is formed of a generally C-shaped channel having a bottom wall 403A, a top wall 403B and end wall 403C.
  • the walls 403A and 403B have free ends 472 which face and generally abut the flanges 455 and 456.
  • the walls 403A and 403B define an open space 460 therebetween and the walls 405A and 405B define a cavity 470 therebetween.
  • a locking bar 449 is accommodated in the cavity 470 of the heel point section 405 and has an enlarged head 450 and a stem 456 which projects through the channel 471 between the flanges 472.
  • a bar 451 is coupled to the stem 456 and projects into the space 460.
  • Pin 407 carries an integral eccentric 453.
  • a sleeve 452 is provided about the eccentric so that the pin and eccentric can rotate about the axis L of the pin relative to the sleeve.
  • the bar 451 is welded to the sleeve 452 which holds the sleeve against rotation with the eccentric 453.
  • a handle 410 mounted on top of the pin 407 is rotated in the direction of arrow F (Fig. 12) so the pin rotates about its longitudinal axis L (Fig. 14) in hole 401.
  • This rotation causes the eccentric 453 to rotate with the pin 407 and the rotation of the eccentric 453 causes the sleeve 452 to move in the direction of arrow G in Figure 14 within the space 460 to pull the bar 451 and also the head 450 in the same direction so that the head securely clamps the flanges 455 against the free ends 472 of the walls 403A and 403B.
  • the heel point section 405 is securely clamped against the base 403 so it cannot move.
  • the handle 410 is rotated in the opposite direction to arrow F (back, for example, to the position shown in Figure 12) so as to rotate the eccentric 453 to move the sleeve 452 in a direction opposite arrow G in Figure 14.
  • This causes the clamping pressure supplied by the head 450 which pushes the flanges 455 hard against the free ends 472 to be released.
  • the heel point section 405 can then slide in the direction of arrow D relative to both the locking bar 449 and also the base 403 with the flanges 455 sliding on the free ends 472 of the walls 403A and 403B.
  • a tongue 481 is provided on the heel point section 405 which projects into the space 460 between the walls 403A and 403B.
  • the jig system can be automatically set up to receive components of a truss and the truss can be easily manipulated to enable connector plates to be inserted in place for formation of the truss.
  • the jig system can be automatically set up to receive components of a truss and the truss can be easily manipulated to enable connector plates to be inserted in place for formation of the truss.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Automatic Assembly (AREA)

Claims (8)

  1. Setzsystem zum Gebrauch beim Anordnen von Komponenten (20A, 20B, 20C, 20D) zum Bilden einer Baugruppe wie zum Beispiel eines Fachwerks (20), wobei das Setzsystem aufweist:
    eine obere Plattform (12) mit einer oberen Oberfläche und darin vorgesehenen, beabstandeten Schlitzen (14),
    mindestens einen Wagen (100), der in einem der genannten Schlitze (14) für Verschiebebewegung in bezug zur oberen Plattform (12) entlang des genannten einen Schlitzes (14) angebracht ist; und
    einen Komponentenhalter (150) zum Halten der Komponenten (20A, 20B, 20C, 20D) in einer Position über der oberen Oberfläche der oberen Plattform (12), wobei der Komponentenhalter (150) mit dem Wagen (100) verbunden ist und einen ersten Teil (140), der den Wagen (100) ergreift, und einen zweiten Teil (155) aufweist, der über dem Wagen (100) beabstandet ist und eine Eingriffsfläche aufweist, die mit einer der Komponenten (20A, 20B, 20C, 20D) in Eingriff gebracht werden kann; dadurch gekennzeichnet dass die Eingriffsfläche des zweiten Teils ausgelegt ist, um elastisch bei Anlegung einer nach unten gerichteten Kraft auf die Komponente (20A, 20B, 20C, 20D) verformt zu werden, um zuzulassen, dass die Komponente (20A, 20B, 20C, 20D) die obere Oberfläche der oberen Plattform (12) ergreift, und zu einer Ausgangskonfiguration bei Aufhebung der nach unten gerichteten Kraft zurückzukehren.
  2. Setzsystem nach Anspruch 1, bei dem der Komponentenhalter (150) einen dritten Teil (153) einschließt, der auf einem entgegengesetzten Ende des Komponentenhalters (150) von dem ersten Teil (140) angeordnet ist, wobei der dritte Teil (153) den Wagen (100) ergreift.
  3. Setzsystem nach Anspruch 2, bei dem der zweite Teil (155) des Komponentenhalters (150) eine allgemein umgekehrte Kanalform aufweist.
  4. Setzsystem nach Anspruch 3, bei dem der erste Teil (140) des Komponentenhalters (150) an dem Wagen (100) befestigt ist und der zweite und dritte Teil (155, 153) keine Verbindung zum Wagen (100) aufweisen.
  5. Setzsystem nach Anspruch 4, das ferner ein Werkzeug (19, 19', 19") zum Anordnen mindestens einer der Komponenten (20A, 20B, 20C, 20D) auf der oberen Plattform (12) aufweist, wobei das Werkzeug (19, 19', 19") sich selbst und den Komponentenhalter (150) an dem Wagen (100) anbringt.
  6. Setzsystem nach Anspruch 5, bei dem das Werkzeug (19, 19', 19") und der Wagen (100) für lösbares Schnappverschluss-Ineinandergreifen ausgelegt sind.
  7. Setzsystem nach einem der Ansprüche 1 bis 6, das ferner einen Antrieb (M, 52) für Antriebsbewegung des genannten einen Wagens (100) in dem Schlitz (14) aufweist.
  8. Setzsystem nach einem der Ansprüche 1 bis 7, das ferner eine Fersenlokalisiereinrichtung (400) aufweist, welche einen ersten Abschnitt (403), der für Verbindung mit der oberen Plattform (12) ausgelegt ist, und einen zweiten Abschnitt (405) einschließt, der verschiebbar an dem ersten Abschnitt (403) für Ausstreckung und Einziehung in bezug zum ersten Abschnitt (403) angebracht ist, wobei der zweite Abschnitt (405) ein Ende (412) aufweist, das zum Lokalisieren einer Ferse eines Fachwerks (20) aufgebaut ist, eine Verriegelungseinrichtung (449) zum Verriegeln des ersten und zweiten Abschnitts (403, 405) in einer feststehenden Position in bezug zueinander, und eine Skala (411) aufweist, die mit einem des ersten und zweiten Abschnitts (403, 405) verknüpft ist, um den zweiten Abschnitt (405) in bezug zum ersten Abschnitt (403) zu lokalisieren.
EP00919716A 1999-04-01 2000-03-28 Positioniersystem für trägerfachwerke Expired - Lifetime EP1165296B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AUPP956899 1999-04-01
AUPP9568A AUPP956899A0 (en) 1999-04-01 1999-04-01 Truss jigging system
AUPP973099 1999-04-13
AUPP9730A AUPP973099A0 (en) 1999-04-13 1999-04-13 Truss jigging system
PCT/US2000/008153 WO2000059695A1 (en) 1999-04-01 2000-03-28 Truss jigging system

Publications (2)

Publication Number Publication Date
EP1165296A1 EP1165296A1 (de) 2002-01-02
EP1165296B1 true EP1165296B1 (de) 2004-10-27

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EP (1) EP1165296B1 (de)
CA (1) CA2368178C (de)
DE (1) DE60015309T2 (de)
NZ (1) NZ514461A (de)
WO (1) WO2000059695A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR666701A0 (en) 2001-07-27 2001-08-23 Mitek Holdings, Inc. Structural framework, method for forming the framework and webs therefor
GB2393205B (en) * 2002-09-12 2004-11-17 Richard Jonathan Goodwin A method of manufacturing building units
US7922158B2 (en) 2003-02-18 2011-04-12 Truss Industry Production Systems, Inc. Automatic truss jig setting system
US6712347B1 (en) 2003-02-18 2004-03-30 Clyde R. Fredrickson Automatic truss jig setting system
US8244392B2 (en) * 2007-09-28 2012-08-14 Mitek Holdings, Inc. Automated truss assembly jig setting system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4453705A (en) * 1979-09-18 1984-06-12 Mcdonald William D Mobile wooden truss fabricating apparatus
US4875666A (en) * 1987-06-30 1989-10-24 Hain Leonard P Clamp for holding work pieces in the formation of trusses
AU694642B2 (en) * 1995-05-23 1998-07-23 Mitek Holdings, Inc. Truss jigging system
US5608970A (en) * 1995-09-19 1997-03-11 Mount Shamrock Pty Ltd. Quick release truss clamp and method
US5810341A (en) * 1995-11-02 1998-09-22 Tee-Lok Corporation Truss table with integrated positioning stops
US5941514A (en) * 1998-02-03 1999-08-24 Burcaw; Terry E. Truss element positioning clamp

Also Published As

Publication number Publication date
DE60015309D1 (de) 2004-12-02
WO2000059695A9 (en) 2002-04-11
NZ514461A (en) 2003-08-29
CA2368178A1 (en) 2000-10-12
CA2368178C (en) 2006-05-23
EP1165296A1 (de) 2002-01-02
DE60015309T2 (de) 2005-05-04
WO2000059695A1 (en) 2000-10-12

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