EP0003714A1 - Machine pour visser des moyens de fixation - Google Patents

Machine pour visser des moyens de fixation Download PDF

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Publication number
EP0003714A1
EP0003714A1 EP79810002A EP79810002A EP0003714A1 EP 0003714 A1 EP0003714 A1 EP 0003714A1 EP 79810002 A EP79810002 A EP 79810002A EP 79810002 A EP79810002 A EP 79810002A EP 0003714 A1 EP0003714 A1 EP 0003714A1
Authority
EP
European Patent Office
Prior art keywords
slide
jaws
slide plate
screwing
feed
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.)
Granted
Application number
EP79810002A
Other languages
German (de)
English (en)
Other versions
EP0003714B1 (fr
Inventor
Gerhard Bögel
Max Sahli
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
Application filed by SFS Stadler AG filed Critical SFS Stadler AG
Publication of EP0003714A1 publication Critical patent/EP0003714A1/fr
Application granted granted Critical
Publication of EP0003714B1 publication Critical patent/EP0003714B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • 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
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • 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
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • 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 fasteners with a laterally protruding feed pipe for the fasteners, an adjoining feed shaft, a screwing device which can be displaced in the feed shaft, and pivotable jaws arranged at the free end of the feed shaft for guiding the fasteners when they are attached, wherein the feed shaft is part of a slide which is displaceable relative to the screwing device in the axial direction of the same and the jaws are forcibly movable and fixable as a function of the displacement movement of the slide or the screwing device.
  • the known devices are often equipped with laterally opening, spring-loaded jaws, which are unsuitable, however, if work has to be carried out in narrow trapezoidal sheet metal valleys.
  • the feeding of the screws into the feed shaft is also quite problematic in most known designs.
  • An attachment is also known in which the screws have to be threaded or clamped between the jaws so that one can work upwards against the ceiling.
  • there are significant disadvantages in that for each filling operation the front section has to be bent in a manner similar to that of a shotgun in order to insert the screw. Then a swiveling back is again required, after which the screwing-in process can only begin.
  • a laterally projecting feed pipe for the fasteners and a feed shaft adjoining it are provided.
  • a screwing device can be moved in the feed shaft itself.
  • jaws are provided which are pivotally held over leaf springs and which are intended to guide the fasteners when they are attached.
  • the jaws provided here can be pivoted in a plane transverse to a plane guided through the feed tube, so that it can be seen from this alone that the space requirement is relatively large.
  • the locking and releasing of the jaws must take place through a sleeve which largely surrounds them, there is a very broadly protruding front region of the screwing device.
  • the present invention is therefore based on the object of providing a screwing device which can be built relatively narrow at least in one direction of expansion, and in addition the parts which effect the locking and releasing of the jaws require only a small amount of space.
  • the jaws each have two arms which engage behind the slide on both sides and engage bearing bolts provided in these arms on the slide, the pivoting plane of the jaws coinciding with the feed plane of the fasteners, and that on the slide a slide plate is held displaceably between two end positions and the free end of the slide plate carries a locking piece engaging between two arms of the jaws, the slide plate being displaceable relative to the slide depending on the position of the slide within the screwing device or a bearing flange.
  • the object stated above can be solved in a faultless manner.
  • the slide only has to be designed according to the required strength, in which case only the arms of the jaws protrude laterally from this slide. Since the blocking and releasing of the jaws is carried out by means of a slide plate, which can therefore be correspondingly thin, an insignificant thickness is additionally applied to the slide, but this does not exceed the thickness of the arms provided on the jaws. It can therefore be ensured a very narrow construction of the carriage, which contributes to this measure that the pivoting plane of the jaws matches the feed plane of the fasteners. As a result, a corresponding expansion of the screwing device is required only in one direction.
  • the measures according to the invention also deal with the problem of locking and releasing the jaws in a structurally simple manner. It is a major advantage that there is a forced mechanical lock which is only released when the slide is in a certain position within the screwing device. It is therefore always guaranteed that the jaws can only open shortly before the end of the screwing-in process.
  • the device essentially consists of a drive device 1, which can be designed, for example, in the manner of a drilling machine, a feed and screw-in device 2 and a handling device 3.
  • the feed and screw-in device essentially consists of the feed pipe 4 and the feed shaft connected to it 5 and the jaws 6 arranged at the free end of the feed shaft 5.
  • the feed shaft 5 is part of a displaceable slide 7, a slide plate 8 being displaceably arranged on this slide 7 and having a locking piece 9 for forcibly opening and closing the jaws 6.
  • the carriage 7 is held displaceably in a bearing flange 10, a rail-like projection 11 being guided in a guide arrangement 12.
  • the bearing flange 10 is in turn firmly connected to the drive device 1.
  • the function of the slide plate or the opening and closing of the jaws can best be seen in FIGS. 7 and 8.
  • the slide plate 8 is slidably held between two end positions, two elongated holes being provided for this purpose, in which bolts 14 fastened on the slide 7 engage.
  • the slide plate 8 is thereby displaceable by the length of the elongated holes 13, the locking piece 9 being adjustable by this dimension, so that it moves from a locked position into an open position.
  • a spring 15 which is spring-loaded against the slide plate 8 or a corresponding bolt is provided in a verticalization of the slide 7 and which engages in depressions on the slide-side surface thereof in the end position of the slide plate 8.
  • the slide plate 8 also has a laterally projecting arm 16 which engages in the range of motion of a bolt 17 arranged on the bearing flange 10. This additionally ensures that the slide plate G remains in its retracted locking position or is retracted into it if the slide plate 8 should not yet be in this position due to any obstacle.
  • a second pin 18 is also connected to the bearing flange 10, but via a lever 19.
  • the pin 18 is thereby movable in an approximately horizontal direction in the position shown. This has created a possibility that the slide plate 8 is only pushed into its lower position shortly before the end of the screwing-in process, so that the jaws 6 are only opened then.
  • a starting ramp 20 engages in the displacement area of the pin 18 or the lever 19, which ramp is provided with inclined running surfaces 21 and 22 and is fastened to the slide 7.
  • a notch 23 or another recess is provided on the slide plate 8, into which the pin 18 arranged on the pivotable lever 19 can snap.
  • the Slider plate 8 taken to the other end position. If a movement takes place via this other end position Hnaus, the pin 18 can in turn come out of the notch 23 by pivoting the lever 19.
  • the bolt is then pressed into the notch 23 by bumping against the run-up surface 22, so that the slide plate 8 is pulled back into its rest position.
  • the special arrangement of the swivel plane of the jaws 6 results in a narrow construction, so that use in relatively small corrugated plate valleys is possible. This is only possible if the swivel plane of the jaws matches the feed plane of the fasteners.
  • the jaws 6 are pivotably held on two bolts which are arranged at a distance from one another, the mounting being carried out on two arms 25 which surround the slide 7 and are approximately parallel to one another. 1, 7 and 8 can clearly be seen, the locking piece 9 engages at the free end of the slide plate 8 between the two arms 25 of the adjacent jaws 6.
  • the width of the locking piece 9 is accordingly measured transversely to the same displacement of the distance of the free ends of the arms 25 adapted.
  • the construction is expediently chosen as shown in the drawings, in which the inner boundaries of the arms 25 extend approximately parallel to one another when the jaws 6 are closed.
  • the locking piece 9 is thus displaced between two end positions by the slide plate 8, the jaws being mechanically locked in one end position and the jaws being freely movable in the other end position.
  • an additional elongated hole could of course also be provided in the slide plate 8, in which an actuating bolt then causes the required movement.
  • the full force is available to open the jaws when screwing in.
  • the closing takes place with the spring force of a main spring 26, which is arranged between the slide 7 and the bearing flange 10. This closing takes place at a point in time at which the spring force is still relatively high, that is to say at the beginning of the return path.
  • the slide plate 8 can of course be designed in various constructive variants, for example also as a sheet metal part, wherein the area of the locking piece can be a bent sheet metal tab.
  • the connecting piece between the slide plate 8 and the locking piece 9 can of course also be cranked outwards, so that the locking piece 9 is then directed against the carriage 7.
  • a keyhole-like opening 27 is provided in the feed shaft 5 for feeding the fasteners.
  • the side boundaries of the lower, narrower slot 28, through which the screw shaft can be inserted, converge inwards.
  • the length of the narrower slot 28 can be chosen so that the screw in its drilling position with the pressed collar is in the area of this slot and no longer in the area of the wide opening. This inevitably prevents the screw from breaking out.
  • the head of the screw is centered exactly to nut and the shaft is brought in the axial direction by the locked jaws. This means that drilling can inevitably take place at the desired location.
  • magnets 29 are also embedded in the wall, which preferably run in a strip-like manner parallel to the axis of rotation.
  • the feed pipe 4 is best seen in FIGS. 1 to 3.
  • This feed pipe 4 can be fastened to the front of the slide or in the area of the feed shaft 5, the feed shaft carrying a flange 30 which can be inserted in a positive manner in a guide on the slide 7.
  • This feed tube can therefore be inserted or removed as required.
  • This feed tube 4 can be secured against unintentional loosening by means of a set screw or a locking ball. In itself, you can get by without this fuse, because the feed tube is always pressed from above when the screws are inserted.
  • the flange 30 has at its area covering the narrower slot 28 of the feed opening in the feed shaft 5 an elevation 31 which engages in this slot, so that when the feed tube 4 is pushed on, a practically completely circumferential tube for the feed shaft 5 is formed in the area of the slot 28. This completely eliminates feed disruptions.
  • an extension piece 34 can be attached to a handle tube 33 provided for fastening a handle 32 so that the screws can already be inserted at the height of the handle 32. This is very advantageous, in particular when screwing onto roofs or flat coverings, since the operator of the device no longer has to bend down as a result.
  • the intermediate piece 34 can be inserted telescopically into the handle tube 33. So that this intermediate piece 34 can be securely supported on the feed tube 4, it has a push-on ring 35 at its lower end, on the upper side of which a thread 36 is provided for screwing into the lower end 37 of the handle tube 33.
  • a telescopic rod 42 runs parallel to the feed direction of the device and has a support foot 43 at its free end.
  • a compression spring is arranged within the telescopic rod 42.
  • An approximately right-angled foot lever 44 can be attached to part 41 of the telescopic rod 42. This allows the force applied to the handle 32 to be screwed in by foot actuation. Since the foot of the telescopic tube 42 is arranged directly below the small foot lever, the resulting torque is kept as low as possible.
  • the device pushed into one another that is to say when the slide 7 is in the inserted end position, can be locked.
  • the screw-in nut 46 then emerges through the fully open jaws and the device can then be used as a normal screwdriver, for example for removing an incorrectly placed screw.
  • An interchangeable stop plate 47 which is provided with a rubber insert 48, is provided on the end face of the carriage 7. Furthermore, an adjusting screw 49 is provided with a detent ball and a sliding block, which serves as an adjustable stop. This allows the setting depth to be set.
  • the stop plate 47 according to FIG. 1 has a central opening into which the jaws are immersed. With such a plate, the basic unit can be attached at right angles to the work surface without difficulty.
  • This large stop plate 47 can only be replaced by a small one according to FIGS. 5 and 6 if the space is limited, the trapezoidal sheet bead is too narrow or if one has to work in a corner.
  • Fasteners without sealing washers and also fasteners with sealing washers should be able to be pre-stored. They are only oriented over the pressed disc under their head.
  • the pressed washer is tolerated both in diameter and in thickness, so that the self-drilling screws of the usual length, including the sealing washers, do not tilt into the guide slot can slide.
  • the pre-magazine is connected on the one hand to a handle tube 33, and on the other hand to a push rod 52 which can be moved as a function of the feed movement of the device.
  • the Vormagazin can perpendicularly or approximately 15 0 in the screwing direction inclined to the handle tube 33 or be mounted directly on the delivery pipe. 4
  • the screw shaft now tilts down. If the fastener is then almost vertical, it can fall into the carriage 7 in the subsequent grip tube like a fastener fed directly by hand.
  • the screw falls with the horizontal axis or almost horizontal axis through the keyhole-like opening 27 into the tubular region of the feed shaft 5 and is then pushed through the jaws 6 through the jaws 6.
  • Fig. 4 shows only one possibility of the separation principle.
  • the bottom fastener is held by a pivot piece 54.
  • a push rod 52 coupled to the movable slide 7 holds the pivot piece 54 in this position. If the device is pushed into one another, the push rod 52 moves back into its initial position.
  • the pivot piece 54 is immediately adjusted by the spring 55 (similar to the escapement of a balance wheel).
  • the bottom screw falls, while the second is prevented from slipping.
  • the push rod 52 again comes against the swivel piece 54 shortly before reaching the end position and also sets this in the starting position. Now the second screw falls into the lowest position.
  • further variants of this pre-storage are conceivable.
  • a drive device 1 is provided in the form of a drilling machine.
  • the actuation switch of this drive device is usually arranged on the handle thereof.
  • the switch for actuating the drive device could also be attached to the handle 32.
  • the drive device itself was not shown in detail in FIG. 1, since all possible design variants are of course conceivable here.
  • the handle of such a drive device is usually mounted so that the cable exit is not a hindrance when walking. For working on a wall, however, the drive device can be turned back into the device axis, so the handle is then rotated by 90 °.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP79810002A 1978-02-14 1979-01-15 Machine pour visser des moyens de fixation Expired EP0003714B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1063/78 1978-02-14
AT106378A AT360926B (de) 1978-02-14 1978-02-14 Vorrichtung zum eindrehen von schrauben

Publications (2)

Publication Number Publication Date
EP0003714A1 true EP0003714A1 (fr) 1979-08-22
EP0003714B1 EP0003714B1 (fr) 1981-04-29

Family

ID=3505783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79810002A Expired EP0003714B1 (fr) 1978-02-14 1979-01-15 Machine pour visser des moyens de fixation

Country Status (4)

Country Link
US (1) US4354403A (fr)
EP (1) EP0003714B1 (fr)
AT (1) AT360926B (fr)
DE (1) DE2960282D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0600283A1 (fr) * 1992-12-03 1994-06-08 Hardo- Befestigungen Gmbh Dispositif pour visser des éléments de fixation
DE102021133829A1 (de) 2021-12-20 2023-06-22 Harald Zahn Gmbh Setzkopf mit einer fehlbefestigungserkennung für setzgeräte zur mechanischen befestigung von dämmmaterial und abdichtbahnen auf flachdächern

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333427A1 (de) * 1983-09-16 1985-04-04 Karl M. Reich Maschinenfabrik GmbH, 7440 Nürtingen Einschraubgeraet
DE3436171C2 (de) 1983-10-19 1995-01-19 Sfs Stadler Ag Magazinierstreifen für Schrauben
AT383764B (de) * 1983-10-19 1987-08-25 Sfs Stadler Ag Eintreibgeraet fuer in einem magazinierstreifen zugefuehrte schrauben
DE3448511C2 (de) * 1983-10-19 1995-02-02 Sfs Stadler Ag Eintreibgerät für in einem Magazinierstreifen zugeführte Schrauben
DE3618620A1 (de) * 1986-06-03 1987-12-10 Bosch Gmbh Robert Vorrichtung zum automatischen zufuehren und eindrehen von schrauben
DE3931001A1 (de) * 1989-09-16 1991-03-28 Lorenz Stoeger Handgeraet zum automatischen eindrehen oder eintreiben von befestigungsmitteln
DE9115893U1 (de) * 1991-12-21 1992-04-09 Helfer & Co KG, 3260 Rinteln Kraftangetriebenes Schraubwerkzeug
DE4142503C1 (en) * 1991-12-21 1993-04-29 Helfer & Co Kg, 3260 Rinteln, De Power driven screwdriver for floors etc. - has floor abutting underframe coupled to two vertical supports, along which two transverse yokes are guided
US6585141B2 (en) 1999-12-28 2003-07-01 Textron Inc. Adjustable-length end piece for a fastener drive tool
US6296064B1 (en) 1999-12-28 2001-10-02 Textron Inc. Axially loaded drive tool
US6622596B2 (en) 2000-03-29 2003-09-23 Textron Inc. Spring loaded drive gun
US6729522B2 (en) * 2001-01-26 2004-05-04 Illinois Tool Works Inc. Fastener driving tool having improved bearing and fastener guide assemblies
GB2401079B (en) * 2003-04-30 2005-04-27 Black & Decker Inc Screw feeder
US6945140B2 (en) 2003-08-21 2005-09-20 Black & Decker Inc. Automatic screwfeeder
DE102010048775A1 (de) 2010-10-18 2012-04-19 Sfs Intec Holding Ag Vorrichtung zum Eindrehen von Schrauben

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH282474A (fr) * 1948-10-04 1952-04-30 Gobin Daude Sa Machine semi-automatique à visser.
BE727454A (fr) * 1968-02-15 1969-07-01

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT237547B (de) * 1960-08-09 1964-12-28 Alfred Schlotter Vorrichtung zum Eindrehen von Schrauben, insbesondere von selbstbohrenden Blechtreibschrauben
US3583451A (en) * 1969-04-09 1971-06-08 Dixon Automatic Tool Machine for automatically driving threaded fasteners
US3930808A (en) * 1973-10-05 1976-01-06 Royal Industries, Inc. Automatic collet hinge/screw placement machine
US3929176A (en) * 1974-10-25 1975-12-30 Dixon Babette Machine for automatically driving threaded fasteners
US3965950A (en) * 1975-03-20 1976-06-29 Macdonald Murdo A Fastener driver and fastener holding nosepiece

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH282474A (fr) * 1948-10-04 1952-04-30 Gobin Daude Sa Machine semi-automatique à visser.
BE727454A (fr) * 1968-02-15 1969-07-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0600283A1 (fr) * 1992-12-03 1994-06-08 Hardo- Befestigungen Gmbh Dispositif pour visser des éléments de fixation
DE102021133829A1 (de) 2021-12-20 2023-06-22 Harald Zahn Gmbh Setzkopf mit einer fehlbefestigungserkennung für setzgeräte zur mechanischen befestigung von dämmmaterial und abdichtbahnen auf flachdächern

Also Published As

Publication number Publication date
EP0003714B1 (fr) 1981-04-29
ATA106378A (de) 1980-06-15
AT360926B (de) 1981-02-10
DE2960282D1 (en) 1981-08-06
US4354403A (en) 1982-10-19

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