EP0628384A2 - Method for setting fastening elements - Google Patents

Method for setting fastening elements Download PDF

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Publication number
EP0628384A2
EP0628384A2 EP94810304A EP94810304A EP0628384A2 EP 0628384 A2 EP0628384 A2 EP 0628384A2 EP 94810304 A EP94810304 A EP 94810304A EP 94810304 A EP94810304 A EP 94810304A EP 0628384 A2 EP0628384 A2 EP 0628384A2
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EP
European Patent Office
Prior art keywords
fastening element
hollow shaft
guide tube
area
nail
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
EP94810304A
Other languages
German (de)
French (fr)
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EP0628384A3 (en
EP0628384B1 (en
Inventor
Josef Schmidle
Dimitrios Stefanoudakis
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Hilti AG
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Hilti AG
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Publication date
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Publication of EP0628384A2 publication Critical patent/EP0628384A2/en
Publication of EP0628384A3 publication Critical patent/EP0628384A3/en
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Publication of EP0628384B1 publication Critical patent/EP0628384B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/18—Details and accessories, e.g. splinter guards, spall minimisers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/762—Exterior insulation of exterior walls
    • E04B1/7629—Details of the mechanical connection of the insulation to the wall
    • E04B1/7633—Dowels with enlarged insulation retaining head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C1/00—Hand-held nailing tools; Nail feeding devices
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/18—Details and accessories, e.g. splinter guards, spall minimisers
    • B25C1/188—Arrangements at the forward end of the barrel, e.g. splinter guards, spall minimisers, safety arrangements, silencers, bolt retainers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/005—Attachments or adapters placed between tool and hammer
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/36—Connecting; Fastening
    • E04D3/3601—Connecting; Fastening of roof covering supported by the roof structure with interposition of a insulating layer
    • E04D3/3603—Connecting; Fastening of roof covering supported by the roof structure with interposition of a insulating layer the fastening means being screws or nails

Definitions

  • the invention relates to a method for fixing fastening elements serving to fasten insulation plates to components by means of a setting device operated by high-tension gases, the fastening element having a large-area head, a hollow shaft protruding from the head and penetrating the insulation plates, and an abutment for one from the setting device into the components has a drivable nail.
  • a fastening element for fastening insulation plates to components, a fastening element is known from DE-OS 39 31 833, which can be fastened to a component by means of a nail.
  • the fastening element has a large-area head, a hollow shaft connected to it in one piece, and a nail.
  • a radially compressible sleeve is arranged in the hollow shaft, the free end of which serves as an abutment for a head of the nail.
  • the fastening element is first pushed with the hollow shaft through the insulation plates, which mostly consist of material with low compressive strength. The head then comes to rest on the insulation plate, while the free end of the hollow shaft is supported on the component.
  • the nail is driven into the component through the hollow shaft by means of, for example, a powder-powered setting tool.
  • a powder-powered setting tool At the end of the driving-in process, the head of the nail runs against the abutment, as a result of which the fastening element and the insulation plate are fixed on the component.
  • setting failures can occur because the fastening element has no actual anchoring. Such failures can occur if the nail is hit with "iron” when the nail hits joints that are so deep that the nail does not come into contact with the component. Further setting failures can also occur if the drive energy of the Setting tool or when fastening fasteners in the edge area of components.
  • the invention is based on the object of specifying a method for fixing fastening elements serving for fastening insulation plates to components, in which a defective fastening can be identified.
  • the fastening element can be connected to the mouth region of the setting tool before the nail is driven in and the connection can be released after driving in the nail while overcoming a force which exceeds the frictional force between the hollow shaft and the insulation plate.
  • the method according to the invention makes it possible to detect defective fastening due to setting failure in that, after the setting process, when the setting tool is lifted, a tensile force acts on the fastening element which corresponds to the frictional force between the mouth area of the setting device and the fastening element attached to the mouth area.
  • the fastening element is at least partially pulled out of the insulation plate, so that the large-area head is spaced apart from the outer surface of the insulation plate.
  • the fastening element can expediently be connected to the mouth region of the setting tool by inserting a guide tube into the hollow shaft.
  • the mouth area of the setting tool has a cross-sectional area, the diameter of which is slightly larger than the inside diameter of the hollow shaft, so that when the mouth area interacts with the hollow shaft of the fastening element, a frictional force is created which is greater than the frictional force between the outer wall of the hollow shaft and the insulation plate, which is fixed to a component with the fastening element.
  • the guide tube expediently has a connection area.
  • a connection area can also be arranged at the free end of the guide tube or when the guide tube protrudes deep into the fastening element to be fixed, in the area which is at the same height as the rear free end of the fastening element.
  • connection area is preferably profiled.
  • Knurling, cross knurling, at least one protrusion or at least one recess can serve as profiling.
  • connection area is preferably arranged on a separate part which is adjustable relative to the guide tube.
  • the connection area is thus axially adjustable relative to the guide tube.
  • the axial displacement can take place via an external thread on the guide tube and a complementary internal thread on the separate part.
  • a locking pin or a locking screw can be used to determine this.
  • the fastening element preferably has a counter region on the inner contour of the hollow shaft. Corresponding measures generating frictional force are thus also arranged on the fastening element and interact with the mouth region of the setting tool or with the outer surface of the guide tube.
  • the counter region of the inner contour of the hollow shaft is expediently profiled.
  • This profiling can be formed from knurling, cross knurling, at least one projection, at least one recess or preferably from longitudinal ribs which extend at least partially over the inner contour of the hollow shaft.
  • the size and thus also the frictional force of the counter region interacting with the outer surface of the guide tube can be changed by the arrangement of longitudinal ribs. The wider and the longer the longitudinal ribs are, the greater the frictional force.
  • a plurality of longitudinal ribs are expediently arranged distributed over the circumference of the inner contour of the hollow shaft. Due to the even distribution of the longitudinal ribs, the radial guidance of the guide tube of a setting tool is achieved within the hollow shaft of the fastening element.
  • the clear opening of the hollow shaft delimited by the longitudinal ribs is preferably cylindrical.
  • a fastening element designed in this way can be connected to a guide tube of a setting tool, the connecting region of which has a cylindrical outer contour.
  • the outer diameter of the guide tube is designed to be slightly larger, so that the connection between the guide tube and the fastening element after driving in the nail of the fastening element only by overcoming a force which exceeds the frictional force between the hollow shaft and an insulation plate is solvable.
  • connection area of the guide tube or the hollow shaft positively support the generation of the frictional force, so that the connection areas can be made very short with respect to their longitudinal extent. This has a positive effect on the structural design of the fastening element and the guide tube and on the duration of the application of force which is necessary when the fastening element is placed on the guide tube or the fastening element is removed from the guide tube.
  • FIG. 1 shows a powder-operated setting tool with a housing 1, a handle 2, an actuation switch 3, a receiving area 4 for a guide tube 5, an axially displaceable piston 6 and an adjusting device 8 for optimizing the power energy.
  • At least one cartridge can be inserted into the setting tool and can be ignited via the actuating switch 3 with the aid of a mechanical device.
  • the expansion pressure released thereby acts on the end of the piston 6 pointing towards the handle 2 and abruptly sets it in motion in the setting direction.
  • the guide tube 5, shown enlarged in FIG. 2 has a connection area 5a and an insertion end 5b, which cooperates with the receiving area 4 of the setting tool.
  • the connection area 5a extends at least partially over the entire length of the guide tube 5 and projects beyond it in the radial direction.
  • the surface of the connection area 5a has a profile in the form of a cross knurl.
  • FIG. 3 shows a further guide tube 15 with a separate part 16, which is arranged axially displaceable relative to the guide tube 15 via a threaded connection 15a, 16b.
  • a clamping screw 17 is provided as an anti-rotation device and is arranged in a threaded bore of the separate part 16.
  • a connecting region 16a which projects radially beyond the outer diameter of the guide tube 15 is connected in one piece to the separate part 16 and has a profiling which is designed as a knurled cross.
  • the insertion end 15b of the guide tube 15 can be connected to a receiving area of a setting tool.
  • the guide tube 25 shown in FIG. 4 protrudes with the insertion end 25b into the receiving area 24 of a setting tool, not shown.
  • a separate part 26 with an internal thread 26b is arranged on the guide tube 25, which cooperates with an external thread 25a of the guide tube 25.
  • the separate part 26 is thus releasably connected to the guide tube 25.
  • Via a clamping screw 27 on the separate part 26, the separate part 26 can be fixed in a rotationally fixed manner with respect to the thread 25a of the guide tube 25.
  • a connecting area 26a is connected in one piece to the separate part 26 and projects beyond the diameter of the guide tube 25 in the radial direction.
  • the guide tube 25 projects into the interior of the hollow shaft 28b of a fastening element 28, the connection region 26a with an enlarged part of the inner contour of the hollow shaft 28b is in frictional connection in the mouth region of the fastening element 28.
  • the fastening element 28 has a large-area head 28a, a nail 29 and a free-standing, radially compressible sleeve 28c, the free-standing end 28e of which serves as an abutment for a head 29a of the nail 29.
  • the free end 25c of the guide tube 25 projects, at least partially overlapping the compressible sleeve 28c, into the interior of the hollow shaft 28b.
  • the hollow shaft 28b of the fastening element 28 projects through an insulation plate 30 and is supported with its region 28d on the setting direction on the surface of a component 31.
  • the large-area head 28a lies on the surface of the insulation plate 30.
  • FIG. 5 shows a fastening element 38 which has a large-area head 38a, a hollow shaft 38b adjoining the head 38a, a nail 39 and a free-standing, radially compressible sleeve 38c, the free end of which acts as an abutment 38d for a head 39a of the nail 39 serves.
  • longitudinal ribs 40, 41 are arranged which are distributed uniformly around the circumference and extend at least partially along the inner contour of the hollow shaft 38b.
  • the longitudinal ribs 40, 41 project substantially radially from the inner contour of the hollow shaft 38b and are spaced apart from one another in the longitudinal direction of the hollow shaft 38b. Only two longitudinal ribs 40, 41 of a total of three longitudinal ribs 40, 41 are visible in the present illustration.
  • the longitudinal ribs are essentially inclined to one another at an angle of 120 °.
  • the height of the longitudinal ribs 40, 41 decreases in the direction of the large-area head 38a of the fastening element 38.
  • the clear opening of the hollow shaft 38b delimited by the longitudinal ribs 40, 41 is cylindrical and serves to radially guide the guide tube of a setting tool.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Paper (AREA)
  • Connection Of Plates (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Vehicle Body Suspensions (AREA)
  • Insertion Pins And Rivets (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Pens And Brushes (AREA)
  • Seal Device For Vehicle (AREA)
  • Supports For Pipes And Cables (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Surgical Instruments (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Control Of Metal Rolling (AREA)
  • Clamps And Clips (AREA)
  • Slide Fasteners (AREA)
  • Insulators (AREA)
  • Automatic Assembly (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

Fastening elements (28) which serve to fasten insulating panels (30) to building components (31) are fixed by means of setting tools. With the aid of a connecting region (26a), which produces a frictional force, on a guide tube (25) of the setting tool, it is possible to carry out a setting check once the setting operation is completed. For this purpose, the frictional force between the guide tube (25) and the interior of the hollow shaft (28b) of the fastening element (28) is greater than the frictional force between hollow shaft (28b) and insulating panels (30). <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zum Festlegen von dem Befestigen von Isolationsplatten an Bauteilen dienenden Befestigungselementen mittels eines von hochgespannten Gasen betriebenen Setzgerätes, wobei das Befestigungselement einen grossflächigen Kopf, einen vom Kopf abragenden, die Isolationsplatten durchsetzenden Hohlschaft sowie ein Widerlager für einen vom Setzgerät in die Bauteile eintreibbaren Nagel aufweist.The invention relates to a method for fixing fastening elements serving to fasten insulation plates to components by means of a setting device operated by high-tension gases, the fastening element having a large-area head, a hollow shaft protruding from the head and penetrating the insulation plates, and an abutment for one from the setting device into the components has a drivable nail.

Zum Befestigen von Isolationsplatten an Bauteilen, ist aus der DE-OS 39 31 833 ein Befestigungselement bekannt, das mittels eines Nagels an einem Bauteil befestigbar ist. Das Befestigungselement weist einen grossflächigen Kopf, einen einstückig damit verbundenen Hohlschaft und einen Nagel auf. In dem Hohlschaft ist eine radial stauchbare Hülse angeordnet, deren freistehendes Ende als Widerlager für einen Kopf des Nagels dient. Für den Befestigungsvorgang wird das Befestigungselement vorerst mit dem Hohlschaft durch die zumeist aus Material mit geringer Druckfestigkeit bestehenden Isolationsplatten hindurchgestossen. Der Kopf kommt sodann an der Isolationsplatte zur Anlage, während sich das freie Ende des Hohlschaftes am Bauteil abstützt. Mittels eines beispielsweise pulverkraftbetriebenen Setzgerätes wird der Nagel durch den Hohlschaft hindurch in das Bauteil eingetrieben. Am Ende des Eintreibvorganges läuft der Kopf des Nagels an dem Widerlager auf, wodurch das Befestigungselement und die Isolationsplatte am Bauteil festgelegt wird.For fastening insulation plates to components, a fastening element is known from DE-OS 39 31 833, which can be fastened to a component by means of a nail. The fastening element has a large-area head, a hollow shaft connected to it in one piece, and a nail. A radially compressible sleeve is arranged in the hollow shaft, the free end of which serves as an abutment for a head of the nail. For the fastening process, the fastening element is first pushed with the hollow shaft through the insulation plates, which mostly consist of material with low compressive strength. The head then comes to rest on the insulation plate, while the free end of the hollow shaft is supported on the component. The nail is driven into the component through the hollow shaft by means of, for example, a powder-powered setting tool. At the end of the driving-in process, the head of the nail runs against the abutment, as a result of which the fastening element and the insulation plate are fixed on the component.

Beim Setzen der Nägel kann es zu Setzausfällen kommen, indem das Befestigungselement keine tatsächliche Verankerung aufweist. Derartige Setzausfälle können auftreten, wenn es zu einem "Eisentreffer" des Nagels kommt, wenn der Nagel auf Fugen trifft, die so tief sind, dass der Nagel mit dem Bauteil nicht in Verbindung gelangt. Weitere Setzausfälle können auch auftreten bei falscher Dosierung der Eintreibenergie des Setzgerätes oder bei Befestigungen von Befestigungselementen im Randbereich von Bauteilen.When setting the nails, setting failures can occur because the fastening element has no actual anchoring. Such failures can occur if the nail is hit with "iron" when the nail hits joints that are so deep that the nail does not come into contact with the component. Further setting failures can also occur if the drive energy of the Setting tool or when fastening fasteners in the edge area of components.

In der Praxis wurde oft beobachtet, dass nicht geübte, bzw. nicht entsprechend instruierte Anwender, nicht in der Lage sind, alle Setzausfälle optisch direkt zu erkennen. Vor allem beim Setzen von Befestigungselementen in Wärmedämmplatten aus Hartschaumstoff wird oft beobachtet, dass ausgefallene Befestigungselemente im Hartschaumstoff aufgrund erhöhter Reibung zwischen dem Hohlschaft und dem Hartschaumstoff steckengeblieben sind und somit vom Anwender als gesetzte Elemente beurteilt wurden.In practice, it has often been observed that inexperienced users, or users who have not been instructed accordingly, are not able to visually recognize all setting failures directly. Especially when installing fastening elements in thermal insulation boards made of rigid foam, it is often observed that failed fastening elements have become stuck in the rigid foam due to increased friction between the hollow shaft and the rigid foam and have therefore been assessed by the user as seated elements.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Festlegen von dem Befestigen von Isolationsplatten an Bauteilen dienenden Befestigungselementen anzugeben, bei dem ein Erkennen einer mangelhaften Befestigung möglich ist.The invention is based on the object of specifying a method for fixing fastening elements serving for fastening insulation plates to components, in which a defective fastening can be identified.

Erfindungsgemäss wird dies dadurch erreicht, dass das Befestigungselement vor dem Eintreiben des Nagels mit dem Mündungsbereich des Setzgerätes in Verbindung bringbar ist und die Verbindung nach dem Eintreiben des Nagels unter Ueberwindung einer die Reibkraft zwischen Hohlschaft und Isolationsplatte übersteigenden Kraft lösbar ist.This is achieved according to the invention in that the fastening element can be connected to the mouth region of the setting tool before the nail is driven in and the connection can be released after driving in the nail while overcoming a force which exceeds the frictional force between the hollow shaft and the insulation plate.

Das erfindungsgemässe Verfahren ermöglicht das Erkennen einer mangelhaften Befestigung durch Setzausfall indem nach dem Setzvorgang beim Abheben des Setzgerätes eine Zugkraft auf das Befestigungselement einwirkt, die der Reibkraft zwischen dem Mündungsbereich des Setzgerätes und dem auf dem Mündungsbereich aufgesteckten Befestigungselement entspricht. Bei einem Setzausfall wird dabei das Befestigungselement wenigstens teilweise aus der Isolationsplatte herausgezogen, so dass der grossflächige Kopf von der äusseren Oberfläche der Isolationsplatte beabstandet ist.The method according to the invention makes it possible to detect defective fastening due to setting failure in that, after the setting process, when the setting tool is lifted, a tensile force acts on the fastening element which corresponds to the frictional force between the mouth area of the setting device and the fastening element attached to the mouth area. In the event of a setting failure, the fastening element is at least partially pulled out of the insulation plate, so that the large-area head is spaced apart from the outer surface of the insulation plate.

Zweckmässigerweise ist das Befestigungselement unter Einführen eines Führungsrohres in den Hohlschaft mit dem Mündungsbereich des Setzgerätes verbindbar. Der Mündungsbereich des Setzgerätes weist dabei einen Querschnittsbereich auf, dessen Durchmesser geringfügig grösser ausgebildet ist, als der Innendurchmesser des Hohlschaftes, so dass beim Zusammenwirken des Mündungsbereiches mit dem Hohlschaft des Befestigungselementes eine Reibkraft entsteht, die grösser ist, als die Reibkraft zwischen der Aussenwandung des Hohlschaftes und der Isolationsplatte, die mit dem Befestigungselement an einem Bauteil festgelegt wird.The fastening element can expediently be connected to the mouth region of the setting tool by inserting a guide tube into the hollow shaft. The mouth area of the setting tool has a cross-sectional area, the diameter of which is slightly larger than the inside diameter of the hollow shaft, so that when the mouth area interacts with the hollow shaft of the fastening element, a frictional force is created which is greater than the frictional force between the outer wall of the hollow shaft and the insulation plate, which is fixed to a component with the fastening element.

Um die Reibkraft auf einen bestimmten Bereich des Befestigungselementes beschränken zu können, weist das Führungsrohr zweckmässigerweise einen Verbindungsbereich auf. Ein derartiger Verbindungsbereich kann am freien Ende des Führungsrohres oder wenn das Führungsrohr tief in das festzulegende Befestigungselement ragt, auch in jenem Bereich angeordnet sein, der auf gleicher Höhe liegt, wie das rückwärtige freie Ende des Befestigungselementes.In order to be able to restrict the frictional force to a specific area of the fastening element, the guide tube expediently has a connection area. Such a connection area can also be arranged at the free end of the guide tube or when the guide tube protrudes deep into the fastening element to be fixed, in the area which is at the same height as the rear free end of the fastening element.

Die zwischen dem Befestigungselement und dem Führungsrohr gewünschte Reibkraft kann dadurch beeinflusst werden, dass vorzugsweise der Verbindungsbereich profiliert ist. Als Profilierung kann eine Rändelung, eine Kreuzrändelung, wenigstens ein Vorsprung oder wenigstens eine Ausnehmung dienen.The frictional force desired between the fastening element and the guide tube can be influenced in that the connection area is preferably profiled. Knurling, cross knurling, at least one protrusion or at least one recess can serve as profiling.

Da im Handel Isolationsplatten unterschiedlicher Stärke erhältlich sind, werden auch Befestigungselemente mit unterschiedlichen Längen angeboten. Ist der Abstand zwischen der rechtwinklig zur Längsachse des Befestigungselementes verlaufenden Angriffsfläche des Befestigungselementes für das freie Ende des Führungsrohres und dem Verbindungsbereich unterschiedlich, so ist der Verbindungsbereich vorzugsweise an einem separaten, gegenüber dem Führungsrohr verstellbaren Teil angeordnet. Der Verbindungsbereich ist somit gegenüber dem Führungsrohr axial verstellbar. Die axiale Versetzung kann dabei über ein Aussengewinde am Führungsrohr und einem komplementär ausgebildeten Innengewinde am separaten Teil erfolgen. Der Festlegung kann ein Sicherungsstift oder eine Feststellschraube dienen.Since insulation panels of different thicknesses are commercially available, fastening elements with different lengths are also available. If the distance between the engagement surface of the fastening element running at right angles to the longitudinal axis of the fastening element for the free end of the guide tube and the connection area is different, the connection area is preferably arranged on a separate part which is adjustable relative to the guide tube. The connection area is thus axially adjustable relative to the guide tube. The axial displacement can take place via an external thread on the guide tube and a complementary internal thread on the separate part. A locking pin or a locking screw can be used to determine this.

Das Befestigungselement weist vorzugsweise an der Innenkontur des Hohlschaftes einen Gegenbereich auf. Entsprechende, Reibkraft erzeugende Massnahmen sind somit auch an dem Befestigungselement angeordnet und wirken mit dem Mündungsbereich des Setzgerätes bzw. mit der äusseren Oberfläche des Führungsrohres zusammen.The fastening element preferably has a counter region on the inner contour of the hollow shaft. Corresponding measures generating frictional force are thus also arranged on the fastening element and interact with the mouth region of the setting tool or with the outer surface of the guide tube.

Zweckmässigerweise ist der Gegenbereich der Innenkontur des Hohlschaftes eine Profilierung. Diese Profilierung kann aus einer Rändelung, einer Kreuzrändelung, wenigstens einem Vorsprung, wenigstens einer Ausnehmung oder vorzugsweise von sich wenigstens teilweise über die Innenkontur des Hohlschaftes erstreckenden Längsrippen gebildet sein. Durch die Anordnung von Längsrippen kann die Grösse und somit auch die Reibkraft des mit der äusseren Oberfläche des Führungsrohres zusammenwirkenden Gegenbereiches verändert werden. Je breiter und je länger die Längsrippen ausgebildet sind, umso grösser ist die Reibkraft.The counter region of the inner contour of the hollow shaft is expediently profiled. This profiling can be formed from knurling, cross knurling, at least one projection, at least one recess or preferably from longitudinal ribs which extend at least partially over the inner contour of the hollow shaft. The size and thus also the frictional force of the counter region interacting with the outer surface of the guide tube can be changed by the arrangement of longitudinal ribs. The wider and the longer the longitudinal ribs are, the greater the frictional force.

Zweckmässigerweise sind über den Umfang der Innenkontur des Hohlschaftes verteilt mehrere Längsrippen angeordnet. Durch die gleichmässige Verteilung der Längsrippen wird die radiale Führung des Führungsrohres eines Setzgerätes innerhalb des Hohlschaftes des Befestigungselementes erreicht.A plurality of longitudinal ribs are expediently arranged distributed over the circumference of the inner contour of the hollow shaft. Due to the even distribution of the longitudinal ribs, the radial guidance of the guide tube of a setting tool is achieved within the hollow shaft of the fastening element.

Vorzugsweise ist die von den Längsrippen begrenzte lichte Oeffnung des Hohlschaftes zylindrisch ausgebildet. Ein derartig ausgebildetes Befestigungselement ist mit einem Führungsrohr eines Setzgerätes in Verbindung bringbar, dessen Verbindungsbereich eine zylindrische Aussenkontur besitzt. Gegenüber dem Durchmesser der von den Längsrippen begrenzten lichten Oeffnung des Hohlschaftes ist der Aussendurchmesser des Führungsrohres geringfügig grösser ausgebildet, so dass die Verbindung zwischen Führungsrohr und Befestigungselement nach einem Eintreibvorgang des Nagels des Befestigungselementes nur unter Ueberwindung einer die Reibkraft zwischen dem Hohlschaft und einer Isolationsplatte übersteigenden Kraft lösbar ist.The clear opening of the hollow shaft delimited by the longitudinal ribs is preferably cylindrical. A fastening element designed in this way can be connected to a guide tube of a setting tool, the connecting region of which has a cylindrical outer contour. Compared to the diameter of the clear opening of the hollow shaft delimited by the longitudinal ribs, the outer diameter of the guide tube is designed to be slightly larger, so that the connection between the guide tube and the fastening element after driving in the nail of the fastening element only by overcoming a force which exceeds the frictional force between the hollow shaft and an insulation plate is solvable.

Profilierungen im Verbindungsbereich des Führungsrohres bzw. des Hohlschaftes unterstützen die Reibkrafterzeugung positiv, so dass die Verbindungsbereiche bezüglich ihrer Längserstreckung sehr kurz ausgebildet sein können. Dies wirkt sich positiv auf die konstruktive Ausgestaltung des Befestigungselementes und des Führungsrohres sowie auf die Dauer der Kraftaufbringung aus, die beim Aufsetzen des Befestigungselementes auf das Führungsrohr bzw. das Enffemen des Befestigungselementes vom Führungsrohr notwendig ist.Profiling in the connection area of the guide tube or the hollow shaft positively support the generation of the frictional force, so that the connection areas can be made very short with respect to their longitudinal extent. This has a positive effect on the structural design of the fastening element and the guide tube and on the duration of the application of force which is necessary when the fastening element is placed on the guide tube or the fastening element is removed from the guide tube.

Die Erfindung wird anhand von Zeichnungen, die Ausführungsbeispiele wiedergeben, näher erläutert. Es zeigen:

Fig. 1
ein pulverkraftbetriebenes Setzgerät mit einem erfindungsgemässen Führungsrohr, teilweise geschnitten;
Fig. 2
eine vergrösserte Darstellung des Führungsrohres gemäss Fig. 1;
Fig. 3
ein weiteres Führungsrohr, das in ein Setzgerät gemäss Fig. 1 einsetzbar ist, teilweise geschnitten;
Fig. 4
ein weiteres Führungsrohr in Verbindung mit einem Befestigungselement, welches durch eine Isolationsplatte ragt und an einem Bauteil aufsteht;
Fig. 5
ein erfindungsgemässes Befestigungselement in geschnittener, vergrösserter Darstellung.
The invention is explained in more detail with reference to drawings which show exemplary embodiments. Show it:
Fig. 1
a powder-operated setting tool with a guide tube according to the invention, partially cut;
Fig. 2
an enlarged view of the guide tube according to FIG. 1;
Fig. 3
another guide tube, which can be used in a setting tool according to Figure 1, partially cut.
Fig. 4
a further guide tube in connection with a fastening element which protrudes through an insulation plate and stands up on a component;
Fig. 5
a fastening element according to the invention in a sectional, enlarged view.

Die Fig. 1 zeigt ein pulverkraftbetriebenes Setzgerät mit einem Gehäuse 1, einem Handgriff 2, einem Betätigungsschalter 3, einem Aufnahmebereich 4 für ein Führungsrohr 5, einen axial versetzbaren Kolben 6 und eine Verstelleinrichtung 8 für die Optimierung der Leistungsenergie.1 shows a powder-operated setting tool with a housing 1, a handle 2, an actuation switch 3, a receiving area 4 for a guide tube 5, an axially displaceable piston 6 and an adjusting device 8 for optimizing the power energy.

In das Setzgerät ist wenigstens eine Kartusche einsetzbar, die über den Betätigungsschalter 3 unter Zuhilfenahme einer mechanischen Vorrichtung zündbar ist. Der dabei freiwerdende Expansionsdruck wirkt auf das zum Handgriff 2 weisende Ende des Kolbens 6 und versetzt diesen schlagartig in Setzrichtung in Bewegung. Das in Fig. 2 vergrössert dargestellte Führungsrohr 5 weist einen Verbindungsbereich 5a und ein Einsteckende 5b auf, welches mit dem Aufnahmebereich 4 des Setzgerätes zusammenwirkt. Der Verbindungsbereich 5a erstreckt sich wenigstens teilweise über die Gesamtlänge des Führungsrohres 5 und überragt dieses in radialer Richtung. Die Oberfläche des Verbindungsbereiches 5a weist eine Profilierung in Form eines Kreuzrändels auf.At least one cartridge can be inserted into the setting tool and can be ignited via the actuating switch 3 with the aid of a mechanical device. The expansion pressure released thereby acts on the end of the piston 6 pointing towards the handle 2 and abruptly sets it in motion in the setting direction. The guide tube 5, shown enlarged in FIG. 2, has a connection area 5a and an insertion end 5b, which cooperates with the receiving area 4 of the setting tool. The connection area 5a extends at least partially over the entire length of the guide tube 5 and projects beyond it in the radial direction. The surface of the connection area 5a has a profile in the form of a cross knurl.

Die Fig. 3 zeigt ein weiteres Führungrohr 15 mit einem separaten Teil 16, das gegenüber dem Führungsrohr 15 über eine Gewindeverbindung 15a, 16b axial versetzbar angeordnet ist. Als Verdrehsicherung ist eine Klemmschraube 17 vorgesehen, die in einer Gewindebohrung des separaten Teiles 16 angeordnet ist. Ein den Aussendurchmesser des Führungsrohres 15 radial überragender Verbindungsbereich 16a ist einstückig mit dem separaten Teil 16 verbunden und besitzt eine Profilierung, die als Kreuzrändelung ausgebildet ist. Das Einsteckende 15b des Führungsrohres 15 ist in Verbindung bringbar mit einem Aufnahmebereich eines Setzgerätes.3 shows a further guide tube 15 with a separate part 16, which is arranged axially displaceable relative to the guide tube 15 via a threaded connection 15a, 16b. A clamping screw 17 is provided as an anti-rotation device and is arranged in a threaded bore of the separate part 16. A connecting region 16a which projects radially beyond the outer diameter of the guide tube 15 is connected in one piece to the separate part 16 and has a profiling which is designed as a knurled cross. The insertion end 15b of the guide tube 15 can be connected to a receiving area of a setting tool.

Das in Fig. 4 dargestellte Führungsrohr 25 ragt mit dem Einsteckende 25b in den Aufnahmebereich 24 eines nicht näher dargestellten Setzgerätes. Am Führungsrohr 25 ist ein separates Teil 26 mit einem Innengewinde 26b angeordnet, das mit einem Aussengewinde 25a des Führungsrohres 25 zusammenwirkt. Das separate Teil 26 ist somit lösbar mit dem Führungsrohr 25 verbunden. Ueber eine Klemmschraube 27 am separaten Teil 26 ist das separate Teil 26 drehfest gegenüber dem Gewinde 25a des Führungsrohres 25 festlegbar. Ein Verbindungsbereich 26a ist einstückig mit dem separaten Teil 26 verbunden und überragt den Durchmesser des Führungsrohres 25 in radialer Richtung.The guide tube 25 shown in FIG. 4 protrudes with the insertion end 25b into the receiving area 24 of a setting tool, not shown. A separate part 26 with an internal thread 26b is arranged on the guide tube 25, which cooperates with an external thread 25a of the guide tube 25. The separate part 26 is thus releasably connected to the guide tube 25. Via a clamping screw 27 on the separate part 26, the separate part 26 can be fixed in a rotationally fixed manner with respect to the thread 25a of the guide tube 25. A connecting area 26a is connected in one piece to the separate part 26 and projects beyond the diameter of the guide tube 25 in the radial direction.

Das Führungsrohr 25 ragt in das Innere des Hohlschaftes 28b eines Befestigungselementes 28, wobei der Verbindungsbereich 26a mit einem erweiterten Teil der Innenkontur des Hohlschaftes 28b im Mündungsbereich des Befestigungselementes 28 in reibschlüssiger Verbindung steht.The guide tube 25 projects into the interior of the hollow shaft 28b of a fastening element 28, the connection region 26a with an enlarged part of the inner contour of the hollow shaft 28b is in frictional connection in the mouth region of the fastening element 28.

Das Befestigungselement 28 besitzt einen grossflächigen Kopf 28a, einen Nagel 29 und eine freistehende, radial stauchbare Hülse 28c auf, deren freistehendes Ende 28e als Widerlager für einen Kopf 29a des Nagels 29 dient. Das freie Ende 25c des Führungsrohres 25 ragt, die stauchbare Hülse 28c wenigstens teilweise übergreifend, in das Innere des Hohlschaftes 28b. In der Ausgangsstellung vor dem Setzvorgang ragt der Hohlschaft 28b des Befestigungselementes 28 durch eine Isolationsplatte 30 und stützt sich mit seinem setzrichtungsseitigen Bereich 28d an der Oberfläche eines Bauteiles 31 ab. Der grossflächige Kopf 28a liegt dabei auf der Oberfläche der Isolationsplatte 30 auf.The fastening element 28 has a large-area head 28a, a nail 29 and a free-standing, radially compressible sleeve 28c, the free-standing end 28e of which serves as an abutment for a head 29a of the nail 29. The free end 25c of the guide tube 25 projects, at least partially overlapping the compressible sleeve 28c, into the interior of the hollow shaft 28b. In the initial position before the setting process, the hollow shaft 28b of the fastening element 28 projects through an insulation plate 30 and is supported with its region 28d on the setting direction on the surface of a component 31. The large-area head 28a lies on the surface of the insulation plate 30.

Die Fig. 5 zeigt ein Befestigungselement 38, das einen grossflächigen Kopf 38a, einen sich an den Kopf 38a anschliessenden Hohlschaft 38b, einen Nagel 39 und eine freistehende, radial stauchbare Hülse 38c aufweist, deren freistehendes Ende als Widerlager 38d für einen Kopf 39a des Nagels 39 dient. Im Innern des Hohlschaftes 38b sind gleichmässig am Umfang verteilt angeordnete, sich wenigstens teilweise entlang der Innenkontur des Hohlschaftes 38b erstreckende Längsrippen 40, 41 angeordnet.5 shows a fastening element 38 which has a large-area head 38a, a hollow shaft 38b adjoining the head 38a, a nail 39 and a free-standing, radially compressible sleeve 38c, the free end of which acts as an abutment 38d for a head 39a of the nail 39 serves. In the interior of the hollow shaft 38b, longitudinal ribs 40, 41 are arranged which are distributed uniformly around the circumference and extend at least partially along the inner contour of the hollow shaft 38b.

Die Längsrippen 40, 41 ragen im wesentlichen radial von der Innenkontur des Hohlschaftes 38b ab und sind in Längsrichtung des Hohlschaftes 38b voneinander beabstandet. In der vorliegenden Darstellung sind nur jeweils zwei Längsrippen 40, 41 von ingesamt jeweils drei Längsrippen 40, 41 sichtbar. Die Längsrippen stehen im wesentlichen unter einem Winkel von 120° geneigt zueinander. Die Höhe der Längsrippen 40, 41 nimmt in Richtung grossflächiger Kopf 38a des Befestigungselementes 38 ab. Die von den Längsrippen 40, 41 begrenzte lichte Oeffnung des Hohlschaftes 38b ist zylindrisch ausgebildet und dient der radialen Führung des Führungsrohres eines Setzgerätes.The longitudinal ribs 40, 41 project substantially radially from the inner contour of the hollow shaft 38b and are spaced apart from one another in the longitudinal direction of the hollow shaft 38b. Only two longitudinal ribs 40, 41 of a total of three longitudinal ribs 40, 41 are visible in the present illustration. The longitudinal ribs are essentially inclined to one another at an angle of 120 °. The height of the longitudinal ribs 40, 41 decreases in the direction of the large-area head 38a of the fastening element 38. The clear opening of the hollow shaft 38b delimited by the longitudinal ribs 40, 41 is cylindrical and serves to radially guide the guide tube of a setting tool.

Claims (10)

Verfahren zum Festlegen von dem Befestigen von Isolationsplatten (30) an Bauteilen (31) dienenden Befestigungselementen (28, 38) mittels eines von hochgespannten Gasen betriebenen Setzgerätes, wobei das Befestigungselement (28, 38) einen grossflächigen Kopf (28a, 38a), einen vom Kopf (28a, 38a) abragenden, die Isolationsplatten (30) durchsetzenden Hohlschaft (28b, 38b) sowie ein Widerlager (28e, 38d) für einen vom Setzgerät in die Bauteile (31) eintreibbaren Nagel (29, 39) aufweist, dadurch gekennzeichnet, dass das Befestigungselement (28, 38) vor dem Eintreiben des Nagels (29, 39) mit dem Mündungsbereich des Setzgerätes in Verbindung bringbar ist und die Verbindung nach dem Eintreiben des Nagels (29, 39) unter Ueberwindung einer die Reibkraft zwischen Hohlschaft (28b, 38b) und Isolationsplatte (30) übersteigenden Kraft lösbar ist.Method for fixing the fastening elements (28, 38) serving to fasten insulation plates (30) to components (31) by means of a setting device operated by high-tension gases, the fastening element (28, 38) having a large-area head (28a, 38a), one of which Head (28a, 38a) projecting hollow shaft (28b, 38b) penetrating the insulation plates (30) and an abutment (28e, 38d) for a nail (29, 39) which can be driven into the components (31) by the setting tool, characterized in that that the fastening element (28, 38) can be connected to the mouth area of the setting tool before the nail (29, 39) is driven in and the connection after driving in the nail (29, 39) while overcoming the frictional force between the hollow shaft (28b, 38b) and insulation plate (30) exceeding force can be released. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Befestigungselement (28, 38) unter Einführen eines Führungsrohres (5, 15, 25) in den Hohlschaft (28b, 38b) mit dem Mündungsbereich des Setzgerätes verbindbar ist.Method according to Claim 1, characterized in that the fastening element (28, 38) can be connected to the mouth region of the setting tool by inserting a guide tube (5, 15, 25) into the hollow shaft (28b, 38b). Vorrichtung zur Durchführung des Verfahrens nach Anspruch 2, dadurch gekennzeichnet, dass das Führungsrohr (5, 15, 25) einen Verbindungsbereich (5a, 16a, 26a) aufweist.Apparatus for carrying out the method according to claim 2, characterized in that the guide tube (5, 15, 25) has a connecting area (5a, 16a, 26a). Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Verbindungsbereich (5a, 16a, 26a) profiliert ist.Device according to claim 3, characterized in that the connection area (5a, 16a, 26a) is profiled. Vorrichtung nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass der Verbindungsbereich (16a, 26a) an einem separaten, gegenüber dem Führungsrohr (15, 25) verstellbaren Teil (16, 26) angeordnet ist.Device according to one of claims 3 or 4, characterized in that the connecting region (16a, 26a) is arranged on a separate part (16, 26) which is adjustable relative to the guide tube (15, 25). Befestigungselement zur Durchführung des Verfahrens nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Innenkontur des Hohlschaftes (28b, 38b) des Befestigungselementes (28, 38) einen Gegenbereich aufweist.Fastening element for carrying out the method according to one of claims 1 or 2, characterized in that the inner contour of the hollow shaft (28b, 38b) of the fastening element (28, 38) has a counter region. Befestigungselement nach Anspruch 6, dadurch gekennzeichnet, dass der Gegenbereich der Innenkontur des Hohlschaftes (28b, 38b) eine Profilierung ist.Fastening element according to claim 6, characterized in that the counter region of the inner contour of the hollow shaft (28b, 38b) is a profiling. Befestigungselement nach Anspruch 7, dadurch gekennzeichnet, dass die Profilierung von sich wenigstens teilweise entlang der Innenkontur des Hohlschaftes (38b) erstreckende Längsrippen (40, 41) gebildet ist.Fastening element according to claim 7, characterized in that the profiling is formed by longitudinal ribs (40, 41) which extend at least partially along the inner contour of the hollow shaft (38b). Befestigungselement nach Anspruch 8, dadurch gekennzeichnet, dass über den Umfang der Innenkontur des Hohlschaftes (38b) verteilt mehrere Längsrippen (40, 41) angeordnet sind.Fastening element according to claim 8, characterized in that several longitudinal ribs (40, 41) are arranged distributed over the circumference of the inner contour of the hollow shaft (38b). Befestigungselement nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die von den Längsrippen (40, 41) begrenzte lichte Oeffnung des Hohlschaftes (38b) zylindrisch ausgebildet ist.Fastening element according to claim 8 or 9, characterized in that the clear opening of the hollow shaft (38b) delimited by the longitudinal ribs (40, 41) is cylindrical.
EP94810304A 1993-06-08 1994-05-26 Method for setting fastening elements Expired - Lifetime EP0628384B1 (en)

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DE4318965A DE4318965C2 (en) 1993-06-08 1993-06-08 Fastening method
DE4318965 1993-06-08

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EP0628384A3 EP0628384A3 (en) 1995-05-24
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KR (1) KR100298373B1 (en)
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EP1138848A1 (en) * 2000-03-25 2001-10-04 Adolf Würth GmbH & Co. KG Insulating material fixing means and method for anchoring said means
DE102008057560A1 (en) * 2008-11-15 2010-05-27 Meese Spanntechnik Gmbh Mounting arrangement for mounting film for sealing purpose on firm cladding in civil engineering, has round towers mounted by nails, where film is attached to round towers
CN102785218A (en) * 2012-08-31 2012-11-21 朱益民 Gas nailing tool
EP3593948A1 (en) * 2018-07-11 2020-01-15 Hilti Aktiengesellschaft Method for fixing a component to a substrate
WO2020011602A1 (en) * 2018-07-11 2020-01-16 Hilti Aktiengesellschaft Method for securing a component to a substrate

Also Published As

Publication number Publication date
KR950000308A (en) 1995-01-03
CN1101886C (en) 2003-02-19
AU685792B2 (en) 1998-01-29
DK0628384T3 (en) 1998-09-14
NO942105L (en) 1994-12-09
EP0628384A3 (en) 1995-05-24
FI104015B1 (en) 1999-10-29
CA2125301C (en) 2001-04-24
DE4318965A1 (en) 1994-12-15
JPH0752064A (en) 1995-02-28
HUT69251A (en) 1995-08-28
KR100298373B1 (en) 2001-10-24
FI942672A0 (en) 1994-06-07
AU6459894A (en) 1995-06-15
EP0628384B1 (en) 1998-01-14
DE59404998D1 (en) 1998-02-19
ES2110724T3 (en) 1998-02-16
PL174048B1 (en) 1998-06-30
NO942105D0 (en) 1994-06-07
TW299270B (en) 1997-03-01
CA2125301A1 (en) 1994-12-09
PL303717A1 (en) 1994-12-12
US5833420A (en) 1998-11-10
HU216595B (en) 1999-07-28
CN1104703A (en) 1995-07-05
DE4318965C2 (en) 1996-04-11
NO180734C (en) 1997-06-04
FI942672A (en) 1994-12-09
FI104015B (en) 1999-10-29
JP3477243B2 (en) 2003-12-10
ATE162128T1 (en) 1998-01-15
HU9401697D0 (en) 1994-09-28
NO180734B (en) 1997-02-24

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