EP0522996B1 - Outil de scellement actionné par poudre avec magasin pour éléments de fixation - Google Patents

Outil de scellement actionné par poudre avec magasin pour éléments de fixation Download PDF

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Publication number
EP0522996B1
EP0522996B1 EP92810192A EP92810192A EP0522996B1 EP 0522996 B1 EP0522996 B1 EP 0522996B1 EP 92810192 A EP92810192 A EP 92810192A EP 92810192 A EP92810192 A EP 92810192A EP 0522996 B1 EP0522996 B1 EP 0522996B1
Authority
EP
European Patent Office
Prior art keywords
guide
feed slot
setting tool
bolt
magazine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92810192A
Other languages
German (de)
English (en)
Other versions
EP0522996A1 (fr
Inventor
Norbert Oehry
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.)
Hilti AG
Original Assignee
Hilti 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 Hilti AG filed Critical Hilti AG
Publication of EP0522996A1 publication Critical patent/EP0522996A1/fr
Application granted granted Critical
Publication of EP0522996B1 publication Critical patent/EP0522996B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B25C1/14—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil
    • 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
    • B25C1/182—Feeding devices
    • B25C1/184—Feeding devices for nails

Definitions

  • the invention relates to a powder-operated setting tool with a housing, in which a pressing device which can project beyond the end face of the housing on the driving-in direction and a piston guide serving to guide a driving piston are axially displaceable under mutual axial contact, the pressing device and the piston guide being axially displaced counter to the driving-in direction, a clamping device for tension a firing pin and a laterally projecting magazine, aligned with a passage opening in the housing, is arranged on the housing for the fastening elements held in guide bushes connected to one another in the manner of a belt.
  • Such a powder-powered setting tool with a laterally protruding magazine for fastening elements which are guided in guide bushes which are connected in the manner of a belt is known, for example, from DE-A-36 06 514.
  • this setting tool provided with a magazine as with single-shot devices, the problem can be solved that the device can only be put into operation by igniting propellant charges if it is pressed against the component into which the fastening elements are to be driven. This is the only way to avoid accidents that can lead to personal injury.
  • the setting tool mentioned has an ignition bolt for the propellant charges, which is only tensioned when the setting device is pressed against the component.
  • a clamping device for the ignition pin is provided, which cooperates with the axially displaceable piston guide.
  • This piston guide is displaceable within the housing on which the magazine is also arranged.
  • the housing can be designed in several parts to achieve further functions.
  • An axially displaceable pressure sensor interacts with the axially displaceable piston guide and, in the unpressurized state of the setting tool, projects beyond the end face of the driving direction.
  • the contact pressure sensor is pushed back against the driving direction in the housing, which also involves moving the piston guide back with the associated activation of the tensioning device for the firing pin.
  • the setting tool is thus ready for operation, which can be done by igniting the propellant charge.
  • EP-A-237 477 powder-operated setting device for fasteners has a housing in which a mouth part is arranged which can be displaced from a front position backwards into the ready-to-ignite position and which is laterally surmounted by a magazine with a slide for advancing the fasteners from the magazine into the mouth bore of the mouth part, the slide being displaceable from an initial position into an end position freed from the fastening elements.
  • the setting tools described above perform the functions with regard to safety in connection with the pressing of the setting tool against the component.
  • the functional reliability in connection with the supply of the fastening elements is not fully guaranteed.
  • the housing in the area of the laterally protruding magazine has a passage opening for the fastening elements, which has a constant projection in all functional positions of the setting tool, there is a risk that, due to the feed mechanism for the fastening elements, they will be driven so far into the interior of the device, that the next fastener is also caught by the driving piston.
  • the invention has for its object to provide a powder-powered setting tool that on the one hand fulfills all safety requirements in that a propellant charge can only be ignited when the setting tool is pressed on and on the other hand ensures that only the fastening element provided for driving is acted upon by the driving piston.
  • the object is achieved in that the axially displaceable pressing device is designed as a bolt guide that is aligned with the driving piston and has an anti-rotation device, and has a feed slot with a width that allows the passage of the fastening elements with guide bushes, the greatest width of which essentially corresponds to the projection of the guide bushes and the entry area of the feed slot for the guide bushes is axially offset relative to the through opening in the housing in the rest position of the setting tool such that no fastening element can be driven into the bolt guide by the feed mechanism of the magazine.
  • a bolt guide which is separate from the housing is available according to the solution according to the invention. This enables precise adjustment to the fastening elements including the guide bushes used for holding. This ensures that the fastening element is adequately guided during the entire driving-in process and that the driving piston acts exclusively on the fastening element to be driven effectively.
  • the feed slot can take over a slide function with a corresponding design, ie the clear cross section of the feed slot can be designed in such a way that the fastening elements with the guide bushes can only enter in a certain position.
  • the greatest width of the feed slot in the entry area of the guide bushes essentially corresponds to the projection of the guide bushes in the feed direction and the smallest width advantageously corresponds at least to the diameter of the exposed areas of the fastening elements. Areas are understood to mean the corresponding length of both the guide bushes and the other exposed areas of the fastening elements. So it arises width-offset feed slot, the greatest width of which is arranged in the end region counter to the driving-in direction after the fastening elements in the rear region are held in the guide bushes.
  • guide bushes are used for the fastening elements, as are known for example from DE-A-36 06 901, i.e. Guide bushes with guide areas of circular cross section adjoining an axial section on both sides, the area of the feed slot is correspondingly stepped with a greater width.
  • the stepped areas of the feed slot with a larger width and shoulders which have a smaller clear width, cooperate with the axial section of the guide bushes lying between the guide areas, so that a securing against rotation of the fastening elements is achieved.
  • Such protection against rotation is particularly advantageous when it is the last fastener to be supplied or when only a few fasteners are connected to each other like a belt.
  • the aforementioned slide function which results from the axial displaceability of the pin guide, can act in two ways if the length of the individual areas is selected accordingly.
  • One mode of operation consists in that when the device is pressed against it, the end region of the feed slot with a smaller width lying counter to the driving direction is at least partially pushed over the guide bushes, so that stops are formed in the transport direction of the fastening elements, which on the one hand prevent the next fastening element from advancing and on the other hand create perfect management conditions during the driving process.
  • a fastening element is thus always pushed into the bolt guide in the unpressed position of the device by the feed mechanism of the magazine.
  • the other mode of operation is that the entry area of the guide slot for the guide bushes in the unpressurized position of the device is axially offset in the driving-in direction such that no fastening element can be driven into the bolt guide by the feed mechanism.
  • the dimensioning of the feed slot is thus to be selected such that the entry area of the feed slot assigned to the guide bushes is aligned with the guide bushes only after overcoming at least a part of the pressing path of the pin guide, so that a fastening element can get into the pin guide.
  • the length of the feed slot expediently corresponds at least to the length of the fastening elements.
  • the feed slot is expediently designed to be open towards the end of the pin guide in the direction of driving.
  • an anti-rotation device is provided for the bolt guide.
  • This protection against rotation can be ensured, for example, in a simple manner in that the bolt guide has a lateral flattening on its outer contour, which in turn has a corresponding flattening Flattening in the housing cooperates, this flattening can be provided in the housing, for example in the form of a separate, detachable part.
  • the setting tool consists of a housing 1 within which a piston guide 2 and a pin guide 3 are axially displaceable and supported against one another.
  • a driving piston 4 is also axially displaceable and is mounted on the one hand in the piston guide 2 and on the other hand in the pin guide 3.
  • This driving piston 4 is driven by propellant charges, not shown in the drawing, which can be supplied, for example, in magazine form through a channel 5 passing through the housing 1 to a cartridge receptacle 6 of the piston guide 2.
  • propellant charges are fed into the cartridge bearing 6 by moving the piston guide 2 back into the region of the channel 5, which occurs, for example, when the device is pressed against a component 10.
  • the pin guide 3 pushes the piston guide 2 against Driving back direction, which also has the consequence that the firing pin 9 is tensioned via a pin 7, which acts on a tensioning device 8.
  • the setting tool reaches its operational position, as shown in FIG. 2.
  • a laterally projecting magazine 1a is also arranged on the housing 1.
  • This magazine 1 a is used to hold fastening elements 11, which are held in guide bushes 12 which are connected to one another in the manner of a belt.
  • These guide bushes 12 have guide areas 12b, 12c on both sides of an axial section 12a.
  • the fastening elements 11 and their guide bushes 12 are fed by a feed mechanism (not shown in the drawing), the fastening elements 11 with the guide bushes 12 coming into the bolt guide 3 in the position of the device not pressed against the component 10 in accordance with the mode of operation on which this exemplary embodiment is based. If the tensioning device 8 is triggered by a trigger 13 in the position of the device pressed against the component 10 according to FIG.
  • the firing pin 9 strikes the propellant charge, not shown in the drawing, which is introduced into the cartridge bearing 6, so that the powder gases generated when it is ignited the driving piston 4 is accelerated in the setting direction.
  • This acceleration has the consequence that one of the fastening elements 11 is driven into the component 10, which takes place while a guide bush 12 is sheared off from the adjacent guide bush 12.
  • the sheared guide bush 12 thus serves as a guide for the fastening element 11 within the bolt guide 3 during the entire driving-in process.
  • a passage opening 1b in the housing 1 is aligned with the magazine 1a, so that the fastening elements 11 together with their guide bushes 12 can be fed to the bolt guide 3.
  • the bolt guide 3 has, for feeding the fastening elements 11 together with their guide bushes 12, a feed slot 3a which, as shown in particular in FIG. 4, is graduated in width.
  • This width is greater against the end in the direction of driving and essentially corresponds to the projection of the guide bushes 12 in the feed direction.
  • the axial length of this area of greater width essentially corresponds to the axial length of the guide bushes 12 and is offset in such a way that shoulders 3c are formed.
  • the clear width between these shoulders 3c is slightly larger than the correspondingly measured extent of the axial section 12a.
  • the width of the feed slot 3a corresponds at least to the diameter of the exposed areas of the fastening elements 11.
  • the aforesaid width gradation of the feed slot 3a has the result that when the bolt guide 3 is displaced counter to the driving direction while pressing the setting tool against the component 10, that area of the feed slot 3a with a smaller width is at least one Part of the height of the guide bushes 12 covered. This results in such a closure that even with the action of the feed mechanism, the next fastening element 11 cannot penetrate into the bolt guide 3. This effect can be seen from FIG. 2 with the supplied fastening elements 11 together with their guide bushes 12.
  • the bolt guide 3 has a flattened portion 3b as an anti-rotation device, which flattens out 3b, which interacts with a correspondingly designed inner contour of the housing 1, as shown in particular in FIG. 3.
  • 3 shows further details for the formation of the feed slot 3a, these details consisting in particular in that the feed slot 3a is tapered at the free ends in the region with a smaller width, so that when the bolt guide 3 is axially displaced counter to the driving-in direction in cooperation with the guide bushes 12 no disability arises.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Cookers (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Medicinal Preparation (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (5)

  1. Outil de scellement actionné par l'énergie de la poudre, comprenant un carter (1) dans lequel un dispositif de serrage pouvant dépasser de la surface frontale côté pose et un guide-piston (2) servant au guidage d'un piston-poussoir (4) peuvent être déplacés axialement avec appui axial mutuel, le dispositif de serrage et le guide-piston (2), en se déplaçant axialement, dans le sens opposé à la direction de pose, armant un dispositif tendeur (8) pour un percuteur (9), et un magasin (1a) pour les éléments de fixation (11) maintenus dans des douilles de guidage (12) reliées entre elles à la manière d'une bande, étant monté en saillie latérale sur le carter (1) et aligné avec une ouverture de passage (1b) dans le carter (1), caractérisé en ce que le dispositif de serrage déplaçable dans le sens axial est conformé en guide-chevilles (3) aligné avec le piston-poussoir (4) et muni d'un système de blocage en rotation, et présente une fente d'amenée (3a) étagée en largeur et autorisant le passage des éléments de fixation (11) avec les douilles de guidage (12), la plus grande largeur de ladite fente d'amenée correspondant sensiblement à la projection des douilles de guidage (12), et dans la position de repos de l'outil de scellement, la zone d'entrée de la fente d'amenée (3a) pour les douilles de guidage (12) étant décalée axialement par rapport à l'ouverture de passage (1b) dans le carter (1) de telle façon qu'aucun élément de fixation (11) ne petit être poussé dans le guide-chevilles (3) par le mécanisme d'amenée du magasin (1a).
  2. Outil de scellement selon la revendication 1, caractérisé en ce que la plus petite largeur de la fente d'amenée (3a) correspond au moins au diamètre des sections libres des éléments de fixation (11).
  3. Outil de scellement selon la revendication 1, caractérisé en ce que la longueur de la fente d'amenée (3a) correspond au moins à la longueur des éléments de fixation (11).
  4. Outil de scellement selon l'une des revendications 1 à 3, caractérisé en ce que la fente d'amenée (3a) est ouverte en direction de l'extrémité du guide-chevilles (3) située du côté pose.
  5. Outil de scellement selon la revendication 1, caractérisé en ce que le système de blocage en rotation du guide-chevilles (3) est conformé en méplat (3b) prévu sur le contour extérieur et coopérant avec le carter (1).
EP92810192A 1991-07-11 1992-03-17 Outil de scellement actionné par poudre avec magasin pour éléments de fixation Expired - Lifetime EP0522996B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4122873 1991-07-11
DE4122873A DE4122873A1 (de) 1991-07-11 1991-07-11 Pulverkraftbetriebenes setzgeraet mit magazin fuer befestigungselemente

Publications (2)

Publication Number Publication Date
EP0522996A1 EP0522996A1 (fr) 1993-01-13
EP0522996B1 true EP0522996B1 (fr) 1994-12-14

Family

ID=6435856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810192A Expired - Lifetime EP0522996B1 (fr) 1991-07-11 1992-03-17 Outil de scellement actionné par poudre avec magasin pour éléments de fixation

Country Status (10)

Country Link
US (1) US5220123A (fr)
EP (1) EP0522996B1 (fr)
JP (1) JPH05192877A (fr)
KR (1) KR100201176B1 (fr)
AT (1) ATE115457T1 (fr)
AU (1) AU651212B2 (fr)
CA (1) CA2073639C (fr)
DE (2) DE4122873A1 (fr)
DK (1) DK0522996T3 (fr)
FI (1) FI105663B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10136509A1 (de) * 2001-07-20 2003-01-30 Adolf Wuerth Gmbh & Co Kg Anordnung zum Zuführen von Bolzen zu einem Bolzenschubgerät

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DE4340570C2 (de) * 1993-11-29 2003-04-10 Hilti Ag Eintreibvorrichtung zum Setzen von Befestigungselementen in Aufnahmematerialien
DE4406556C1 (de) * 1994-03-01 1995-08-03 Herberg Gmbh & Co Kg Mit Bolzen bestücktes Magazin für ein pulverkraftbetriebenes Setzgerät
DE19517230A1 (de) * 1995-05-15 1996-11-21 Hilti Ag Pulverkraftbetriebenes Setzgerät mit Magazin für Befestigungselemente
DE19532411A1 (de) * 1995-09-01 1997-03-06 Hilti Ag Pulverkraftbetriebenes Setzgerät
US5722578A (en) * 1995-09-29 1998-03-03 Illinois Tool Works Inc. High velocity, combustion-powered, fastener-driving tool
DE19544105A1 (de) * 1995-11-27 1997-05-28 Hilti Ag Bolzensetzgerät mit Stoßdämpfer
DE19643198A1 (de) * 1996-10-19 1998-04-23 Adolf Wuerth Gmbh & Co Kg Bolzenschubgerät
DE19709566C2 (de) * 1997-03-08 2000-08-03 Berner Gmbh Bolzenmagazinstreifen
US6010513A (en) * 1997-11-26 2000-01-04 Bionx Implants Oy Device for installing a tissue fastener
US5988477A (en) * 1998-06-03 1999-11-23 Illinois Tools Works, Inc. Nosepiece shield for combustion powered tool
DE19831060A1 (de) * 1998-07-13 2000-01-20 Hilti Ag Setzgerät mit Nagelmagazin
EP0987086A3 (fr) * 1998-09-18 2000-12-20 Ramset Fasteners (Aust.) Pty. Ltd. Outils motorisés comportant un mécanisme d'alimentation du type à chargeur
US6059162A (en) * 1998-10-16 2000-05-09 Illinois Tool Works Inc. Exhaust baffle and spring assisted reset and dampener for powder actuated tool
US6343535B1 (en) * 1999-07-13 2002-02-05 Powers Fastening, Inc. Device for advancing charges in a powder-actuated tool, and improved tool including the same
DE19950349B4 (de) * 1999-10-19 2006-07-27 Hilti Ag Setzgerät für Befestigungselemente
US6568302B2 (en) 2001-08-10 2003-05-27 Illinois Tool Works Inc Telescoping support device for fastener driving tool
US6641021B2 (en) * 2002-03-25 2003-11-04 Illinois Toolworks Inc. Magazine rail system for fastener-driving tool
US6708821B2 (en) * 2002-08-21 2004-03-23 Illinois Tool Works Inc. Fastener collation strip and debris exhaust mechanism
US6834788B2 (en) 2002-09-18 2004-12-28 Illinois Tool Works Inc. Magazine assembly with stabilizing members
US7021511B2 (en) * 2002-09-18 2006-04-04 Illinois Tool Works Inc. Lock-out mechanism for powder actuated tool
FR2865427B1 (fr) * 2004-01-23 2006-04-28 Prospection & Inventions Appareil a tir indirect de scellement d'elements de fixation dans un materiau support
US7971768B2 (en) * 2004-05-04 2011-07-05 Illinois Tool Works Inc. Guidance system for fasteners
US7328826B2 (en) * 2005-03-28 2008-02-12 Illinois Tool Works Inc. Power nailer with driver blade blocking mechanism magazine
TW200927397A (en) * 2007-12-25 2009-07-01 Chung-Heng Lee Firing apparatus for powder-actuated nail gun
DE102009016947A1 (de) * 2009-04-08 2010-10-14 Fischerwerke Gmbh & Co. Kg Brennkraftgetriebenes Setzgerät
CN106078620B (zh) * 2016-07-25 2018-02-09 临海市微能铸机有限公司 射钉枪
KR102200654B1 (ko) * 2020-01-16 2021-01-08 한겸진 앵커못 타격기

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DE2314920C3 (de) * 1973-03-26 1978-08-17 Rapid Befestigungstechnik Gmbh + Co Kg, 4021 Metzkausen Bolzenzuführeinrichtung an einem Eintreibwerkzeug
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DE2432642A1 (de) * 1974-07-08 1976-01-29 Hilti Ag Verfahren und geraet zum setzen eines duebels
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10136509A1 (de) * 2001-07-20 2003-01-30 Adolf Wuerth Gmbh & Co Kg Anordnung zum Zuführen von Bolzen zu einem Bolzenschubgerät

Also Published As

Publication number Publication date
CA2073639C (fr) 1998-09-22
FI923119A (fi) 1993-01-12
FI923119A0 (fi) 1992-07-07
KR100201176B1 (ko) 1999-06-15
DE4122873A1 (de) 1993-01-14
KR930002041A (ko) 1993-02-22
FI105663B (fi) 2000-09-29
ATE115457T1 (de) 1994-12-15
AU651212B2 (en) 1994-07-14
US5220123A (en) 1993-06-15
EP0522996A1 (fr) 1993-01-13
DK0522996T3 (da) 1995-05-15
CA2073639A1 (fr) 1993-01-12
DE59200954D1 (de) 1995-01-26
AU1819492A (en) 1993-01-14
JPH05192877A (ja) 1993-08-03

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