EP1027961A1 - Powder-actuated fastener driving tool - Google Patents
Powder-actuated fastener driving tool Download PDFInfo
- Publication number
- EP1027961A1 EP1027961A1 EP00810049A EP00810049A EP1027961A1 EP 1027961 A1 EP1027961 A1 EP 1027961A1 EP 00810049 A EP00810049 A EP 00810049A EP 00810049 A EP00810049 A EP 00810049A EP 1027961 A1 EP1027961 A1 EP 1027961A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connecting channel
- section
- cartridge
- setting tool
- powder
- 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
Links
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims 1
- 239000003380 propellant Substances 0.000 description 8
- 239000011888 foil Substances 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Images
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
- B25C1/16—Cartridges specially adapted for impact tools; Cartridge and bolts units
- B25C1/163—Cartridges
-
- 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
- B25C1/16—Cartridges specially adapted for impact tools; Cartridge and bolts units
- B25C1/166—Pellets
Definitions
- the invention relates to a powder-operated setting tool according to the preamble of Claim 1.
- a guide cylinder of a setting tool which has an inner bore and a cartridge bearing.
- a Driving piston axially displaceable. Contrary to the setting direction, it adjoins the Inner bore on the cartridge bearing in which a cartridge with, for example powdered propellant charge can be used.
- a cylindrical connecting channel whose diameter is smaller than the diameter of the cartridge storage.
- the connecting channel has one the mouth facing the cartridge storage, which is in the direction of the cartridge storage expanded. The mouth is formed by an all-round phase.
- foil cartridges are not possible with this known setting tool, since the film cartridge extends into the connecting channel when the propellant charge is ignited expanded in the shape of a spherical cap and then bursts undefined. Get there Film residues in the inner bore of the guide cylinder and contaminate it, so that the setting tool malfunctions in a further consequence.
- the invention has for its object to a powder-powered setting tool create, with the propellant stored in foil cartridges without Malfunctions of the setting tool can be ignited easily and safely.
- the film cartridge is attached to one exactly defined point burst by tearing after being in the Foil cartridge a pressure necessary for the complete combustion of the propellant charge has built up.
- the second peripheral section acts against tearing opposite the film and ensures that the film section, which in the Connection channel protrudes, remains securely on the remaining part of the film and not in the Inner bore of the guide cylinder arrives.
- connection area between the torn or burst Foil section and the remaining part of the film is as large as possible preferably the second circumferential section at most over half the total circumference the mouth.
- the first The peripheral portion of the mouth is substantially U-shaped and the second Circumferential section formed straight.
- connection channel preferably the part of the mouth adjoining the mouth in the setting direction Connection channel on a cross-section deviating from a circular shape.
- the cartridge bearing 5 shown in FIGS. 1 and 2 closes against the Setting direction on an inner bore 2 of a guide cylinder 1.
- a driving piston 3 is arranged axially displaceably.
- the connecting channel 4 has a cartridge 9 facing the mouth 9, which consists of two Circumferential sections 10, 11 is composed.
- a first peripheral portion 10 is sharp-edged.
- a second circumferential section 11 has a radius provided, which is for example 0.5 to 4 mm.
- the first sharp-edged Circumferential section 10 and the adjoining wall of the Connection channel 4 are substantially U-shaped.
- the second, with one Radius provided circumferential section 11 and the adjoining wall of the connecting channel 4 are rectilinear.
- the first peripheral portion 10 corresponds, for example, as shown in the exemplary embodiment according to FIG. 2, twice the second peripheral section 11.
- the cartridge store 5 there is a film cartridge 12, which with a powder propellant 13 is filled.
- the propellant charge 13 is ignited by means of two Electrodes 7, 8 between which an arc forms when the electrodes 7, 8 with an electrical power source, not shown, are connected and Current flows through the electrodes 7, 8.
- the two electrodes 7, 8 are fixed to one Housing 6 of a setting tool, not shown, connected and pierce the Bottom of the film cartridge 12. This bottom, like the propellant charge 13 receiving area 15 of the film cartridge is formed from a thin-walled film.
- the one opposite the floor, in the area of the mouth 9 of the connecting channel 4 arranged part of the film cartridge 12 is along the first, sharp-edged Torn peripheral portion 10 and protrudes as a tongue-shaped film residue 14 into the second circumferential section 11, which is provided with a radius Connection channel 4.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Catching Or Destruction (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
Description
Die Erfindung betrifft ein pulverkraftbetriebenes Setzgerät gemäss dem Oberbegriff des
Patentanspruchs 1.The invention relates to a powder-operated setting tool according to the preamble of
Aus der DE-OS 14 78 837 ist ein Führungszylinder eines Setzgerätes bekannt, der über eine Innenbohrung und ein Kartuschenlager verfügt. In der Innenbohrung ist ein Treibkolben axial versetzbar angeordnet. Entgegen der Setzrichtung schliesst sich an die Innenbohrung das Kartuschenlager an, in dem eine Kartusche mit einer beispielsweise pulverförmigen Treibladung einsetzbar ist. Zwischen dem Kartuschenlager und der Innenbohrung erstreckt sich ein zylindrischer Verbindungskanal dessen Durchmesser kleiner ist als der Durchmesser des Kartuschenlagers. Der Verbindungskanal weist eine dem Kartuschenlager zugewandte Mündung auf, die sich in Richtung Kartuschenlager erweitert. Die Mündung wird von einer umlaufend ausgebildeten Phase gebildet.From DE-OS 14 78 837 a guide cylinder of a setting tool is known, which has an inner bore and a cartridge bearing. In the inner bore is a Driving piston axially displaceable. Contrary to the setting direction, it adjoins the Inner bore on the cartridge bearing in which a cartridge with, for example powdered propellant charge can be used. Between the cartridge store and the Inner bore extends a cylindrical connecting channel whose diameter is smaller than the diameter of the cartridge storage. The connecting channel has one the mouth facing the cartridge storage, which is in the direction of the cartridge storage expanded. The mouth is formed by an all-round phase.
Das Verwenden von Folienkartuschen ist bei diesem bekannten Setzgerät nicht möglich, da sich die Folienkartusche beim Zünden der Treibladung in den Verbindungskanal hinein kugelkalottenförmig aufweitet und anschliessend undefiniert platzt. Dabei gelangen Folienreste in die Innenbohrung des Führungszylinders und verschmutzen dieselbe, sodass in einer weiteren Folge Funktionsstörungen des Setzgerätes auftreten.The use of foil cartridges is not possible with this known setting tool, since the film cartridge extends into the connecting channel when the propellant charge is ignited expanded in the shape of a spherical cap and then bursts undefined. Get there Film residues in the inner bore of the guide cylinder and contaminate it, so that the setting tool malfunctions in a further consequence.
Der Erfindung liegt die Aufgabe zugrunde, ein pulverkraftbetriebenes Setzgerät zu schaffen, mit dem in Folienkartuschen bevorratete Treibladungen ohne Funktionsstörungen des Setzgerätes einfach und sicher zündbar sind.The invention has for its object to a powder-powered setting tool create, with the propellant stored in foil cartridges without Malfunctions of the setting tool can be ignited easily and safely.
Die Lösung dieser Aufgabe erfolgt durch ein pulverkraftbetriebenes Setzgerät, welches
die im kennzeichnenden Abschnitt des Patentanspruchs 1 angeführten Merkmale
aufweist.This problem is solved by a powder-operated setting tool, which
the features listed in the characterizing section of
Mit Hilfe des ersten scharfkantigen Umfangsabschnittes wird die Folienkartusche an einer genau definierten Stelle durch Einreissen zum Aufplatzen gebracht, nachdem sich in der Folienkartusche ein für das vollständige Verbrennen der Treibladung notwendiger Druck aufgebaut hat. Der erfindungsgemässe, zweite Umfangsabschnitt wirkt dem Einreissen der Folie entgegen und sorgt dafür, dass jener Folienabschnitt, welcher in den Verbindungskanal ragt, sicher an dem restlichen Teil der Folie verbleibt und nicht in die Innenbohrung des Führungszylinders gelangt.With the help of the first sharp-edged peripheral section, the film cartridge is attached to one exactly defined point burst by tearing after being in the Foil cartridge a pressure necessary for the complete combustion of the propellant charge has built up. The second peripheral section according to the invention acts against tearing opposite the film and ensures that the film section, which in the Connection channel protrudes, remains securely on the remaining part of the film and not in the Inner bore of the guide cylinder arrives.
Damit der von der gezündeten Kartusche erzeugte Treibladungsdruck ungehindert durch den Verbindungskanal hindurch in die Innenbohrung des Führungzylinders gelangen kann, und der Verbindungsbereich zwischen dem eingerissenenen bzw. aufgeplatzten Folienabschnitt sowie dem restlichen Teil der Folie so gross wie möglich ist, erstreckt sich vorzugsweise der zweite Umfangsabschnitt höchstens über den halben Gesamtumfang der Mündung.So that the propellant pressure generated by the ignited cartridge is unhindered by get through the connecting channel into the inner bore of the guide cylinder can, and the connection area between the torn or burst Foil section and the remaining part of the film is as large as possible preferably the second circumferential section at most over half the total circumference the mouth.
Um den in den Verbindungskanal ragenden Folienabschnitt in Form einer Zunge mit zwei im wesentlichen parallel zueinander verlaufenden Seitenrändern und einem halbkreisförmigen Endbereich schaffen zu können, ist zweckmässigerweise der erste Umfangsabschnitt der Mündung im wesentlichen U-förmig und der zweite Umfangsabschitt geradlinig ausgebildet.Around the film section projecting into the connecting channel in the form of a tongue with two essentially parallel side edges and one To be able to create a semicircular end region is expediently the first The peripheral portion of the mouth is substantially U-shaped and the second Circumferential section formed straight.
Zum Zwecke einer wirtschaftlichen Herstellung des Verbindungskanals weist vorzugsweise der sich in Setzrichtung an die Mündung anschliessende Teil des Verbindungskanals einen von einer kreisrunden Form abweichenden Querschnitt auf.For the purpose of economical production of the connecting channel preferably the part of the mouth adjoining the mouth in the setting direction Connection channel on a cross-section deviating from a circular shape.
Die Erfindung wird anhand einer/mehrerer Zeichnungen, die ein/mehrere Ausführungsbeispiele wiedergibt/wiedergeben, näher erläutert. Es zeigen:
- Fig. 1
- ein erfindungsgemässes Kartuschenlager mit einem sich daran anschliessenden Verbindungskanal;
- Fig. 2
- eine Draufsicht auf das Kartuschenlager und den Verbindungskanal gemäss Fig. 1.
- Fig. 1
- a cartridge bearing according to the invention with an adjoining connecting channel;
- Fig. 2
- a plan view of the cartridge bearing and the connecting channel according to FIG. 1.
Das in den Fig. 1 und 2 dargestellte Kartuschenlager 5 schliesst sich entgegen der
Setzrichtung an eine Innenbohrung 2 eines Führungszylinders 1 an. In der Innenbohrung
2 ist ein Treibkolben 3 axial verschiebbar angeordnet. Zwischen der Innenbohrung 2 und
dem Kartuschenlager 5 erstreckt sich ein Verbindungskanal 4, der einen von der
kreisrunden Form abweichenden Querschnitt aufweist. Der Verbindungskanal 4 weist
eine dem Kartuschenlager 5 zugewandte Mündung 9 auf, die sich aus zwei
Umfangsabschnitten 10, 11 zusammensetzt. Ein erster Umfangsabschnitt 10 ist
scharfkantig ausgebildet. Ein zweiter Umfangsabschnitt 11 ist mit einem Radius
versehen, der beispielsweise 0,5 bis 4 mm beträgt. Der erste scharfkantige
Umfangsabschnitt 10 und die sich daran anschliessende Wandung des
Verbindungskanals 4 sind im wesentlichen U-förmig ausgebildet. Der zweite, mit einem
Radius versehene Umfangsabschnitt 11 und die sich daran anschliessende Wandung
des Verbindungskanals 4 sind geradlinig ausgebildet. Der erste Umfangsabschnitt 10
entspricht beispielsweise, wie in dem Ausführungsbeispiel gemäss Fig. 2 dargestellt ist,
dem 2-fachen zweiten Umfangsabschnitt 11.The cartridge bearing 5 shown in FIGS. 1 and 2 closes against the
Setting direction on an
In dem Kartuschenlager 5 befindet sich eine Folienkartusche 12, die mit einer
pulverförmigen Treibladung 13 gefüllt ist. Gezündet wird die Treibladung 13 mittels zweier
Elektroden 7, 8 zwischen denen sich ein Lichtbogen bildet, wenn die Elektroden 7, 8 mit
einer nicht dargestellten elektrischen Stromquelle in Verbindung gebracht werden und
Strom durch die Elektroden 7, 8 fliesst. Die beiden Elektroden 7, 8 sind fest mit einem
Gehäuse 6 eines nicht näher dargestellten Setzgerätes verbunden und durchstossen den
Boden der Folienkartusche 12. Dieser Boden ist wie auch der die Treibladung 13
aufnehmende Bereich 15 der Folienkartusche aus einer dünnwandigen Folie gebildet.In the
Der dem Boden gegenüberliegende, im Bereich der Mündung 9 des Verbindungskanals 4
angeordnete Teil der Folienkartusche 12 ist entlang des ersten, scharfkantigen
Umfangsabschnittes 10 eingerissen und ragt als zungenförmig ausgebildeter Folienrest
14 über den mit einem Radius versehenen zweiten Umfangsabschnitt 11 in den
Verbindungskanal 4.The one opposite the floor, in the area of the
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19905216A DE19905216A1 (en) | 1999-02-09 | 1999-02-09 | Powder-powered setting tool |
DE19905216 | 1999-02-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1027961A1 true EP1027961A1 (en) | 2000-08-16 |
EP1027961B1 EP1027961B1 (en) | 2003-08-20 |
Family
ID=7896869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00810049A Expired - Lifetime EP1027961B1 (en) | 1999-02-09 | 2000-01-21 | Powder-actuated fastener driving tool |
Country Status (10)
Country | Link |
---|---|
US (1) | US6257476B1 (en) |
EP (1) | EP1027961B1 (en) |
JP (1) | JP2000225582A (en) |
CN (1) | CN1147382C (en) |
AU (1) | AU1012400A (en) |
CA (1) | CA2297430A1 (en) |
DE (2) | DE19905216A1 (en) |
PL (1) | PL338254A1 (en) |
TW (1) | TW448090B (en) |
ZA (1) | ZA200000499B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10259776B4 (en) * | 2002-12-19 | 2005-04-28 | Hilti Ag | Ignition device for film cartridges in a combustion-powered implement, in particular in a setting device for fasteners |
DE10259818A1 (en) * | 2002-12-19 | 2004-07-01 | Hilti Ag | Internal combustion-powered working device, in particular setting device for fastening elements |
EP1812208A2 (en) * | 2004-08-30 | 2007-08-01 | Black & Decker, Inc. | Combustion fastener |
JP5011888B2 (en) * | 2006-08-22 | 2012-08-29 | マックス株式会社 | Gas fired driving tool |
US20120000960A1 (en) * | 2010-02-12 | 2012-01-05 | Fernando Masas | Apparatus for installing explosively driven fasteners and fasteners for use therewith |
CN102619554A (en) * | 2012-02-23 | 2012-08-01 | 周荣刚 | Novel explosion-proof electric pneumatic impact device |
CN110873545A (en) * | 2018-09-02 | 2020-03-10 | 孝感定原电子科技有限公司 | Initiating explosive actuator |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1478837A1 (en) * | 1965-11-09 | 1969-03-13 | Bauer Carl Fa | Bolzensetzgeraet for driving bolts or the like. in components |
WO1996039281A1 (en) * | 1995-06-05 | 1996-12-12 | Sencorp | Resiliently expandable ring seal for combustion chamber of propellant tool |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3162123A (en) * | 1962-11-28 | 1964-12-22 | Olin Mathieson | Liquid propellant cartridge |
DE2026570A1 (en) * | 1970-05-30 | 1971-12-16 | Impex-Essen Vertrieb Von Werkzeugen Gmbh, 8800 Ansbach | Bolt driving device with push piston to be driven by powder gases |
US3851416A (en) * | 1973-01-03 | 1974-12-03 | Gunnebo Bruks Ab | Device for cartridge chamber in cartridge tool |
FR2252177A1 (en) * | 1973-11-22 | 1975-06-20 | Mathevon Bernard | Percussive unit for wall fastener firing pistol - axially within grip angled wrt breech travel |
FR2315362A2 (en) * | 1975-06-27 | 1977-01-21 | Spit Soc Prospect Inv Techn | AMMUNITION SEALING GUN WITHOUT CASE |
US4218005A (en) * | 1979-07-30 | 1980-08-19 | Olin Corporation | Baffled venting of gas from a powder actuated tool |
US4655380A (en) * | 1983-05-24 | 1987-04-07 | Pneutek, Inc. | Powder-actuated fastener-driving tool |
US5842623A (en) * | 1997-06-16 | 1998-12-01 | Olin Corporation | Gas primed powder actuated tool |
US6062455A (en) * | 1998-08-06 | 2000-05-16 | Anthony C. Giannuzzi | Cartridge strip magazine for powder-actuated fastener setting tool |
-
1999
- 1999-02-09 DE DE19905216A patent/DE19905216A1/en not_active Withdrawn
-
2000
- 2000-01-06 AU AU10124/00A patent/AU1012400A/en not_active Abandoned
- 2000-01-21 EP EP00810049A patent/EP1027961B1/en not_active Expired - Lifetime
- 2000-01-21 DE DE50003324T patent/DE50003324D1/en not_active Expired - Lifetime
- 2000-01-28 CN CNB00101188XA patent/CN1147382C/en not_active Expired - Fee Related
- 2000-01-28 CA CA002297430A patent/CA2297430A1/en not_active Abandoned
- 2000-02-03 TW TW089102004A patent/TW448090B/en not_active IP Right Cessation
- 2000-02-03 JP JP2000025870A patent/JP2000225582A/en active Pending
- 2000-02-03 ZA ZA200000499A patent/ZA200000499B/en unknown
- 2000-02-04 PL PL00338254A patent/PL338254A1/en unknown
- 2000-02-08 US US09/500,302 patent/US6257476B1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1478837A1 (en) * | 1965-11-09 | 1969-03-13 | Bauer Carl Fa | Bolzensetzgeraet for driving bolts or the like. in components |
WO1996039281A1 (en) * | 1995-06-05 | 1996-12-12 | Sencorp | Resiliently expandable ring seal for combustion chamber of propellant tool |
Also Published As
Publication number | Publication date |
---|---|
DE50003324D1 (en) | 2003-09-25 |
TW448090B (en) | 2001-08-01 |
DE19905216A1 (en) | 2000-08-10 |
CN1147382C (en) | 2004-04-28 |
ZA200000499B (en) | 2000-09-07 |
JP2000225582A (en) | 2000-08-15 |
CN1262984A (en) | 2000-08-16 |
CA2297430A1 (en) | 2000-08-09 |
PL338254A1 (en) | 2000-08-14 |
AU1012400A (en) | 2000-08-10 |
US6257476B1 (en) | 2001-07-10 |
EP1027961B1 (en) | 2003-08-20 |
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