EP0208775A1 - Dispositif de vissage de vis avec rondelles - Google Patents

Dispositif de vissage de vis avec rondelles

Info

Publication number
EP0208775A1
EP0208775A1 EP86901050A EP86901050A EP0208775A1 EP 0208775 A1 EP0208775 A1 EP 0208775A1 EP 86901050 A EP86901050 A EP 86901050A EP 86901050 A EP86901050 A EP 86901050A EP 0208775 A1 EP0208775 A1 EP 0208775A1
Authority
EP
European Patent Office
Prior art keywords
washers
shaft
opening
receiving magazine
washer
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Withdrawn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
EP86901050A
Other languages
German (de)
English (en)
Inventor
Gary S. Mays
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.)
SFS Stadler AG
Original Assignee
SFS Stadler AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24778531&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0208775(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SFS Stadler AG filed Critical SFS Stadler AG
Publication of EP0208775A1 publication Critical patent/EP0208775A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B31/00—Hand tools for applying fasteners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/001—Article feeders for assembling machines
    • B23P19/003—Escapement mechanisms used therewith
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D15/00—Apparatus or tools for roof working
    • E04D15/04—Apparatus or tools for roof working for roof coverings comprising slabs, sheets or flexible material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D15/00—Apparatus or tools for roof working
    • E04D15/04—Apparatus or tools for roof working for roof coverings comprising slabs, sheets or flexible material
    • E04D2015/042—Fixing to the roof supporting structure
    • E04D2015/047—Fixing to the roof supporting structure by screwing

Definitions

  • the invention relates to a device for screwing in screws with washers, consisting of a feed tube for the screws, a feed channel for the washers, a screw device for gripping the screw head or for engagement in the same, and an arrangement for separating of the washers stacked in a magazine.
  • a device of this type is for example in EP-A-300-. be ⁇ described and shown, in this known device, both the screws and the washers are fed in a magazine, whereby the large number of screws and washers to be stored results in a relatively high driving weight, so that such a device is appropriate for large-scale operations .
  • a device for screwing in screws with washers is known from US-A-4091 850, a feed pipe for the individual feed for the screws and a feed channel for the washer for the individual feed of washers also being provided for the washers.
  • Such a device is probably a little lighter than the first known device, but is bulky due to the entire upward projecting feed pipes and channels.
  • the present invention has therefore set itself the task of executing a device of the type mentioned in a compact design and easily transportable, and in addition the functionality should be adapted to the tough use in construction.
  • a support part which can be moved by wheels is provided, on which the receiving magazine for the stacked washers is placed, the screwing device and the receiving magazine being laterally offset from one another and being mounted next to one another on the supporting part, that on the underside of the Receiving magazine connects a shaft which is guided within the supporting part and runs obliquely to the vertical up to below the drive axis of the screwing device, that a device for separating the washers stacked in the holding magazine is provided in the area of the upper opening of the inclined shaft, and that resiliently resilient locking cams are provided at the bottom opening of the shaft in the supporting part as supports for supplied washers.
  • the measures according to the invention provide a compact construction of such a device, since the entire arrangement of the washers, the separation of the same and the very short shaft can be accommodated in the low-lying support part or fastened to it. It is therefore also possible to insert a commercially available screw device from above into this supporting part, a feed tube for feeding the screws being already arranged in these commercially available screw devices.
  • the device according to the invention can therefore be easily dismantled in that the screwing device can be removed together with the feed tube for the screws and then only the easily transportable and relatively small supporting part remains.
  • the measures according to the invention ensure that the washers guided downward through the shaft are securely held on the latching cams until the screws are inserted and thus form an additional guide, particularly in the case of relatively long screws, until the screws are finally attached.
  • a washer held in this way is therefore only pulled down against the force of the resiliently resettable locking cams during the final screwing process, that is to say during the last thread turns, and is therefore pressed securely and in no way tilted against the surface of the roofing membrane.
  • FIG. 1 shows an oblique view of a device for fastening a roof sealing membrane when working with an operator
  • Fig. 2 is a plan view of the device. 3 shows a side view of the device
  • FIG. 4 shows an enlarged illustration of the separating mechanism
  • 5 shows a vertical section along the line 5 - 5 in FIG. 3 illustrating the separating mechanism according to FIG. 4
  • 6 shows a plan view of an embodiment variant of the invention
  • Fig. 7 is a side view of the device of Fig. 6;
  • Fig. 8 is a bottom view of the device of Fig. 6; 9 shows a vertical section along the line 9 - 9 in FIG. 6 of a part of the device according to FIG. 6 showing the details of the separating device;
  • FIG. 10 shows a vertical section along the line 10-10 in FIG. 7, illustrating the locking cams in the region of the lower opening of the shaft in a preferred device
  • FIG. 11 shows a further embodiment variant of the device according to the invention in an oblique view
  • FIG. 12 shows the same representation as FIG. 11, but partially shown as an exploded drawing; 13 shows an oblique view of the essential parts of the device for carrying out a separation of the washers, the parts not required for the illustration having been omitted; 14 shows a plan view of the supporting part according to FIGS. 11 and 12 without the attachment shown in FIGS. 11 and 12; FIG. 15 shows a section along the line 15-15 in FIG. 15;
  • FIG. 16 shows a section along the line 16-16 in FIG. 15 through a separate part carrying the latching cams.
  • the device 14 consists of a support part 16, which has a washer holding magazine, which in the embodiment shown is made of holding rails 18 for holding a vertical stack of washers 20. As described in more detail below, the device can be moved along the edge 22 of the roofing membrane 12 in order to place a washer at the desired locations and add a screw to hold down the roofing membrane 12.
  • the roofing membrane 12 is fastened using washers 24 and 26, respectively, which are pressed against the roofing membrane 12 by means of the screws 28 and 30 used.
  • the device according to FIG. 1 is moved into the corresponding position in the following manner: the entire device is tilted a little to the side so that it is then possible to drive on wheels 32 and 34. At the new place of use, the device is tilted back so that the underside of the supporting part 16 again rests on the roofing membrane 12.
  • a foot pedal 36 is then actuated by the worker 10. The actuation of the pedal 36 causes a washer to be brought into the support part 14, specifically into a screw-in position directly below the drive axis of a commercially available screwing device 38 which projects upwards.
  • FIG. 6 to 12 show in detail the device according to the invention according to FIG. 1. This device is preferred for relatively thin washers, for washers with a relatively deep indentation for receiving the screw head and for circular washers without corners.
  • FIGS. 2 to 5 Another device is shown in FIGS. 2 to 5 and is preferred for other types of washers.
  • This device has a support part 40, which can be moved above the roofing membrane into the desired positions on the roofing membrane, where screwing by means of washers and screws is to be provided.
  • the method is carried out by means of a pair of wheels 42 and 44 which follow one another at a distance.
  • the wheels 42 and 44 are fastened to a longitudinal beam 46 which is on one side of the supporting part 40 is mounted. Both wheels 42 and 44 are mounted on the same side of the support member 40 and aligned parallel to the direction of travel of the support member 40.
  • the support level of the wheels is not significantly below the lower end level of the support member 40.
  • the supporting part 40 can therefore be tilted laterally and moved on the wheels 42, 44 in the longitudinal direction along the edge of the roofing membrane, so that the supporting part 40 does not touch the roofing membrane when moving. The device then tilts back and thus is positioned, since the bottom surface 54 of the supporting part 40 is in turn supported on the roofing membrane.
  • a washer receiving magazine 48 is mounted on the supporting part 40 and has means for separating and feeding individual washers. This separation takes place as a function of the actuation of a foot pedal 50 which is held on the support part 40 so as to be pivotable about the axis 52.
  • a washer conveying device is provided for taking over the washers from the receiving magazine and for forwarding them to the use position 56 directly above the roofing membrane 58.
  • the washer feed device has an inclined shaft 60 which is molded into the support part 40 and extends from the washer receiving magazine 48. This shaft 60 then leads up to the screwdriver guide 62.
  • the shaft 60 is open to the roofing membrane 58, as will be explained in more detail below with reference to FIGS. 6 to 8.
  • the shaft brings the washers directly into a position which is laterally offset with respect to the receiving magazine 68, so that the screwdriver guide 62 can also be offset laterally. Accordingly, there is no mutual interference between the mechanism of this device and the screwdriver drive. Faults can also be switched off as a result.
  • the preferred embodiment of the screwdriver guide is simply a hole in the supporting part 40, the central axis of which is aligned with the opening at the lower end of the shaft 60.
  • the inside diameter of the screw guide 62 is dimensioned to suitably accommodate the lower end of the screwing device, a screwdriver 38 with an attached tube according to FIG. 1 being used here, for example. This diameter can be chosen to accommodate different screwdrivers of different sizes, depending on which known screwdriver is to be used here for the device according to the invention.
  • the preferred holding means for the vertically aligned washer stack 70 start from the upper opening 72 of the shaft 60 and expediently consist of a pair of L-shaped rails 74 and 76 which hold the stack 70 in position and secure the washers in a secure manner Lead position for subsequent separation.
  • 74 and 76 are arranged so that the stack 70 of the washers is aligned coaxially to the opening 72 of the shaft 60, but obliquely to the opening, namely rotated about a vertical axis to align the opening 72.
  • This enables the corners of the washer stack 70 to be supported on the upper edge of the shaft 60 at the four regions 80, 82, 84 and 86.
  • An inherently circular, horizontally arranged disk 88 is rotatably held in a receiving opening 90 above the upper end of the shaft 60. This disk 88 can be rotated about a central axis of the end of the shaft 60 and the washer stack 70.
  • the washer 88 has a central opening for positively but loosely encompassing the circumference of a washer and also a thickness that is not greater than the thickness of a washer.
  • the opening 92 is normally aligned with the stack 70 of the washers and the lowermost washer of the stack rests within this opening 92.
  • an end plate 94 for the supporting part, on which the upwardly projecting rails 74 and 76 are attached.
  • the disk 88 is actuated by a piston rod 98, specifically by an arm 97 which is fixed to the foot pedal 50.
  • the foot pedal 50 is resiliently biased in its upper rest position, a spring 101 being used for this purpose, which gives the disk 88 a counter-rotating movement.
  • the foot pedal 50 swings down and moves the piston rods 98 in their longitudinal direction. This sliding movement of the piston rod 98 rotates the disk 88 until its opening 92 coincides with the upper opening 72 of the shaft 60. As a result, the lowermost washer is brought into correspondence with the shaft 60 and it is made possible for this washer to fall into the shaft 60.
  • separating and feeding means for the use of washers, which cannot be rotated because a deep indentation is provided, or which are not polygonal, that is to say circular and have no corners.
  • This embodiment also has a support part 100 with the same arrangement of wheels 102 and 104.
  • a foot pedal 106 is also provided here, which is resiliently biased upwards, and furthermore a screwdriver guide 108 is also provided here, which is laterally opposite the Washer-receiving magazine 110 is offset.
  • washer feed means are provided, including a shaft 112 for feeding the washer into the screw position, which is again laterally offset from the receiving magazine 110 and also just above the roof membrane in the area of the screw driver guide 108, as already to the others Descriptions described.
  • the receiving magazine has upwardly projecting rails 114 and 116 as in the other versions, but these are arranged here in a vertical orientation directly above the upper opening of the shaft.
  • the washer stack is held by a pair of lower, retractable fingers 118 and 120 which, in the idle state, project into the shaft 112 at opposite boundaries in the area of the upper opening 122 of the shaft 112.
  • a pair of upper fingers 124 and 126 which are normally retracted but are retractable in the idle state are also positioned at the opposite boundaries of the upper openings 122 of the shaft 112, preferably directly above the lower fingers 118, 120 the lower fingers 118 and 120, this distance being equal or slightly larger than the thickness of a washer.
  • the fingers 124 and 126 are designed to be particularly narrow at their ends and preferably taper towards the free end, as can be seen from the sectional drawing, so that these fingers can be extended and thereby between the lowest washer and the washers above. Stack can penetrate.
  • Synchronously driven levers 128 are actuated by a foot pedal 106 and move the fingers so that when the foot pedal 106 is operated, the upper fingers 124 and 126 are advanced to raise the stack and the lower fingers 118 and 120 are retracted to thereby be the lowest Washer to allow to fall into the shaft. The fingers are returned to their rest position after releasing the foot pedal.
  • a preferred separating device consists of a pair of rotatable bolts 130 and 132, which are arranged between the fingers and each push one finger out and retract the other fingers by rotary movement.
  • the bolts 130 and 132 are provided with a pair of narrow pins which engage in narrow slots in the fingers.
  • a lever 134 is attached to the bolt 130, and the bolt 132 has a lever 136.
  • the foot pedal 106 has an upstream arm 138 which is fastened to the foot pedal and which, when the foot pedal 106 is rotated, interacts with a rod 140 which is operatively connected to the lever 136. Depressing the foot pedal 106 causes the lever 136 to rotate (clockwise in Fig.
  • each washer which falls down through the shaft, lies in a reliable, repeatable screwing position, so that the central opening in the washer is positioned exactly below the screwdriver guide 106.
  • a pair of resiliently releasable locking cams 150 and 152 can be provided, which are mounted on opposite side boundaries of the lower opening 154 of the shaft and protrude into this opening. This can be seen in more detail in FIGS. 8 and 10.
  • the lower end of the shaft 112 can be designed in the same way as the lower end of the shaft 60 in the embodiment according to FIGS. 2 to 5.
  • both releasable locking cams 150 and 152 are made of resiliently bendable, stainless spring steel, welded freely cantilevered from a side boundary of the opening 154 is positioned directly above the roofing membrane. These springs enable a washer to be held in the position for screwing in the screw, which is fed through the pipe 39 and finally through the area of the screwdriver guide 108. As shown in FIG. 10, the screw 160 is inserted into the central opening of the washer and when screwing it into the substructure, the resiliently bendable locking cams 150 and 152 are bent downward into the positions 150A and 152A. When the fastening consisting of washer and screw is set, the washer is pulled past the locking cams 150 and 152 downward against the roofing membrane.
  • a permanent magnet 180 is expediently mounted in the region of the lower opening of the shaft 112, which magnet, for example, in a corresponding depression in the region of the lower opening of the shaft 112 can be used.
  • This permanent magnet 180 serves to hold the ferromagnetic washers in a position on the locking cams 150 and 152 which is aligned exactly with the screwdriver axis.
  • a corresponding permanent magnet can also be used in the other explained embodiments of the device according to the invention.
  • the device according to the invention is equipped with the same basic elements, but some details are solved differently in terms of construction.
  • a movable support member 170 is also provided, on the top of which an end plate 171 is attached.
  • a receiving magazine 172 is arranged on this end plate 171, essentially elongated washers being rounded at the ends being used here.
  • the screwing device 173 and the receiving magazine 172 are arranged laterally offset from one another, directly next to one another, and engage directly in the supporting part 170.
  • a supply pipe 174 is again provided on the screwing device 173 for inserting the screws.
  • the two wheels 176 and 177 are fastened to a longitudinal beam 175, which can be mounted on a side delimitation of the supporting part 170. This device is transported further in the same way as in the embodiment variants already explained.
  • an attachment 178 is fastened to the support part 170 or screwed onto the end plate 171, a screwdriver insert 179 being arranged in the support part 170 or the attachment 178 in this embodiment, this screwdriver insert 179 with the screwing device 173 can be coupled.
  • guide columns 180 with an upper stop web 181 are provided, a slide part 182 being displaceable along these guide columns 180.
  • a correspondingly shaped opening 183 is provided in this slide part 182, in which the screwing device 173 can be fixed with the feed pipe 174 by clamping screws, wedges or the like.
  • a support rod 184 is also attached to the top of the support part 170 or to the top of the end plate 171, which has a storage container 185 for screws at its upper end. A corresponding quantity of screws can then be taken along in this storage container 185 during the working process, so that the worker only has to remove screws there and insert them into the feed pipe 174.
  • a rotatable disk 186 that is to say in a manner similar to the embodiment according to FIGS. 2 to 6, but here the turning of the disk 186 as a function of the feed and / or the return movement of the screw device 173 follows.
  • a screwdriver insert 179 is mounted, which with its free upper end is, for. B. can be coupled in the manner of a bayonet lock with the screw device 173.
  • a bolt 188 projects from this screwdriver insert 179 at a right angle, a sleeve 189 being rotatably held on this bolt, so that there is a guide in the groove 190 shown in FIG. 12.
  • this pin 188 engages in an arcuate guide groove 191 in a lever 192, this lever 192 being pivotable about the axis of a pin 193 fixed to the attachment 178.
  • a groove 194 is provided which is open towards the free end and into which a bolt 195 of a slide 196 engages.
  • This slide 196 is guided displaceably in the support part 170 and has at its other end a slot 197 running transversely to its longitudinal extension, in which a slot 186 engages at the lower edge of the disk 186 rotatably mounted in the support part 170.
  • the rotational movement of the disc 186 is thus caused by the advancing movement of the screwing device or the screwdriver insert 179 and by the return movement thereof.
  • This measure does not require the actuation of a foot lever, because with each working stroke a washer is practically guided into the correct position when the screwing device 173 is returned to the starting position, so that a screw can be inserted through the feed pipe 173 and the screwing-in process is made possible.
  • the arc-shaped guide groove 191 is arranged approximately in the central area in relation to the length of the lever 192.
  • this guide groove 191 can be formed by successive straight and curved sections or by continuously curved sections.
  • the guide groove 191 can be offset to a greater or lesser extent or can be arranged closer to the bolt 193 or closer to the free end of the lever 192.
  • FIG. 13 shows a particularly simple adjustment option for the feed path of the lever 192.
  • the angle of rotation of the disc 186 must be set exactly so that no operational disturbances can occur. It is therefore possible in the embodiment shown to adjust the axis of rotation of the lever 192 relative to the bolt 188 engaging in the guide groove 191, an elongated hole 198 being provided in the lever 192 for this purpose, with this elongated hole 198 from both ends Engage adjusting screws 199.
  • These adjusting screws 199 can be screwed in more or less as required, so that the axis of rotation of the lever 192 on the fixed bolt 193 can change.
  • FIG. 14 shows the inclined position of the receiving magazine 172 already explained in relation to FIGS. 2 to 6, with such a form of washers forming the support surfaces 208 from the supporting part underneath, on which the stack is then formed the washers are supported.
  • the supporting part 170 can be manufactured in a simple manner, for example from two halves or also in one piece from a cast aluminum with corresponding processing, as can the attachment 178. A compact, compact construction can thereby be achieved which is in no way susceptible to faults and is also easy to maintain can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Automatic Assembly (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • De-Stacking Of Articles (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

Un dispositif de vissage de vis avec rondelles comprend un tube d'amenée (39) des vis, un canal d'amenée des rondelles, un dispositif de vissage (38) pour saisir la tête de la vis, voir y pénétrer, ainsi qu'un agencement de séparation une à une des rondelles empilées dans un magasin récepteur (48). Une partie de support (14) peut être déplacée sur deux roues (32, 34). Le magasin récepteur (48) pour les rondelles (20) est monté sur la partie de support (14). Le dispositif de vissage (38) et le magasin récepteur (48) sont montés sur la partie de support (14) l'un à côté de l'autre, immédiatement adjacents. Un agencement de séparation une à une des rondelles (20) empilées dans le magasin récepteur (48) est actionné par une pédale (36). Lorsque l'on appuie sur la pédale, la rondelle (20) en bas de la pile est retirée du magasin récepteur et est transportée par un puits incliné jusqu'en dessous du dispositif de vissage (38). La vis est ensuite introduite par le tube d'amenée (39), et vissée lorsque l'on appuie sur le dispositif de vissage (38).
EP86901050A 1985-01-16 1986-01-16 Dispositif de vissage de vis avec rondelles Withdrawn EP0208775A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/691,926 US4657167A (en) 1985-01-16 1985-01-16 Automatic fastening machine for roof and deck coverings
US691926 1985-01-16

Publications (1)

Publication Number Publication Date
EP0208775A1 true EP0208775A1 (fr) 1987-01-21

Family

ID=24778531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86901050A Withdrawn EP0208775A1 (fr) 1985-01-16 1986-01-16 Dispositif de vissage de vis avec rondelles

Country Status (7)

Country Link
US (1) US4657167A (fr)
EP (1) EP0208775A1 (fr)
CA (1) CA1284593C (fr)
DE (3) DE3690023D2 (fr)
GB (1) GB2181081B (fr)
SE (1) SE454572B (fr)
WO (1) WO1986004285A1 (fr)

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Also Published As

Publication number Publication date
DE8690010U1 (de) 1989-04-20
SE8603874D0 (sv) 1986-09-15
US4657167A (en) 1987-04-14
SE454572B (sv) 1988-05-16
DE3690023C1 (de) 1992-03-26
CA1284593C (fr) 1991-06-04
DE3690023D2 (en) 1987-03-12
WO1986004285A1 (fr) 1986-07-31
GB2181081B (en) 1988-11-30
GB8622418D0 (en) 1986-10-22
GB2181081A (en) 1987-04-15
SE8603874L (sv) 1986-09-15

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