EP0826464A1 - Kolbenrückstellelement für pulverkraftbetriebenes Setzgerät - Google Patents
Kolbenrückstellelement für pulverkraftbetriebenes Setzgerät Download PDFInfo
- Publication number
- EP0826464A1 EP0826464A1 EP97810579A EP97810579A EP0826464A1 EP 0826464 A1 EP0826464 A1 EP 0826464A1 EP 97810579 A EP97810579 A EP 97810579A EP 97810579 A EP97810579 A EP 97810579A EP 0826464 A1 EP0826464 A1 EP 0826464A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- molded part
- setting tool
- tool according
- piston
- guide
- 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
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
- B25C1/14—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge acting on an intermediate plunger or anvil
Definitions
- the invention relates to a setting tool according to the preamble of claim 1.
- DE-OS 1 939 801 describes a powder-operated setting tool for driving in known nail-shaped fasteners in an underground, the driving piston by means of an elastic sleeve after a driving-in process into its starting position is pushed back. Moving the driving piston back causes an elastic sleeve surrounding the shaft of the driving piston, which extends from a stop of the piston guide pointing against the setting direction up to one extends end direction of the head part of the driving piston.
- the large diameter difference between the outer diameter of the restoring element and the inside diameter of the piston guide is an indication that the Sleeve of this setting tool is formed from a material with high transverse expansion.
- the largest possible axial spring travel of the restoring element and the associated The greatest axial displacement of the driving piston depends on the size of the hollow cylindrical volume of the space between the restoring element and the inner wall of the piston guide.
- the sleeve known from DE-OS 1 939 801 can be due to its elastic Squeeze properties to a maximum of half the length of the original length.
- an enlargement is necessary of the hollow cylindrical volume is necessary.
- This volume can are influenced by an enlargement of the guide bore of the piston guide in the radial direction, i.e. an increase in the free space between the return element and the inner wall of the piston guide.
- this has the major disadvantage that the size of the setting tool increases very sharply and thus becomes one Unhandiness of the setting tool leads.
- rubber as a material for the elastic sleeve used then this relatively long sleeve has a high Dead weight on.
- the high weight of the sleeve has a negative impact on that Total weight of the setting tool and creates a top heaviness of the setting tool.
- the invention is based, to be actuated by means of high-tension gases the task To create setting tool that is economically producible, one that works reliably, one has a long service life piston guide for the driving piston and itself characterized by a compact design and good handling.
- the restoring element according to the invention can achieve a compression path which corresponds to up to 80% of the initial length of the molded part. This enables the manufacture of setting tools with a compact design.
- pressure is applied, the volume of the individual cells of the predominantly closed cell structure is compressed and then the material itself.
- the maximum compression depends on the bulk density of the molded part.
- the bulk density can be 350 kg / m 3 to 650 kg / m 3 and the volume of all cells or pores 50% to 63%.
- Forming element is expediently formed from a polyurethane elastomer.
- the cell structure of the molded part according to the invention is produced, for example by means of a foaming process.
- the individual cells or pores of this cell structure preferably have a diameter of at most 0.5 mm.
- the molded part advantageously has at least one circumferential groove.
- the Arrangement of a shaped groove causes a reduction in the cross section and thus one lower axial strength of the molded part in the area of the molded groove. As a consequence, that the molded part is first axially compressed in the area of a molded groove.
- the molded part can, for example, have a plurality of molded grooves that either overlap extend the entire length of the molded part or at least one of the end regions or the center are concentrated.
- the distance between the grooves from each other, as well as the depth of the form grooves and the extent of the form grooves in The longitudinal direction of the molded part can, for example, be constant or irregular.
- the form groove is preferably in a perpendicular to Longitudinal axis of the molded part is arranged plane and which is in a cross-section of the plane extending through the longitudinal axis of the molded part
- Form groove is essentially V-shaped.
- the end faces of the molded part are exposed to high mechanical loads. High ones act in particular on the end face facing the driving piston Temperatures.
- To ensure appropriate protection of the molded part can advantageously be a support disc on at least one end face of the molded part arranged.
- the molded part prefferably coaxial with the piston guide to be arranged by placing a support washer on both end faces of the molded part is arranged, the outer diameter of which is essentially the inner diameter of the Piston guide corresponds. In this case, too, there is a positive interlocking of molded part and support washers necessary.
- the support disk is expediently made of rubber.
- the outer diameter of the molded part is made smaller than the inside diameter of the piston guide.
- the outside diameter of the molded part corresponds in the initial length of the molded part, preferably 0.65 times to 0.98 times Inner diameter of the piston guide.
- the powder-powered setting tool shown in FIG. 1 has a housing 1, a integrally connected to the housing 1 handle 5 and the housing 1 and Handle 5 penetrating, strip-shaped cartridge magazine 2 with several Cartridges 3 on.
- an actuation switch 4 is arranged, the triggering a, not shown Ignition mechanism is used.
- the end region of the housing 1 on the setting direction surmounted by a pin guide 6, which together with one of the pin guide 6 subsequent piston guide 7 with respect to the housing 1 axially in a shown pressing is displaceable.
- the piston guide 7 shown in FIGS. 1 and 2 has a central, cylindrical Guide bore 20 which is parallel to the longitudinal extension of the piston guide 7 runs.
- a cartridge bearing 13 is in an opposite direction to the setting direction End region of the piston guide 7 is arranged and stands over a connecting channel 19 in direct connection with the guide bore 20.
- the driving piston 21, not shown, serves a head part 9 and a Shank 8, the substantially the inner diameter of the guide bore 20 corresponding outer diameter of the head part 9 of the drive piston 21 is larger than the diameter of the shaft 8.
- the guide bore 20 serves to guide the Head part 9 when axially displacing the driving piston 21.
- the guide bore 20 has a stop 17 in the form of an annular Surface facing away from the setting direction and the support of the Head part 9 of the driving piston 21 with the interposition of a restoring element in the form a molded part 11 is used.
- a vent hole 10 which is the venting of the setting direction Part of the guide bore 20 is used when the driving piston 21 during the setting process is accelerated in the setting direction.
- the shaft 8 of the driving piston 21 is in a central bore 23 of the piston guide 7 guided in the end area on the setting direction.
- This central bore 23 runs to Guide bore 20 of the piston guide and to a central through bore 22 the bolt guide 6 coaxial.
- the diameter of the through hole 22 corresponds to essentially the diameter of the central bore 23 of the piston guide 7.
- the central bore 23 extends essentially along an outside diameter reduced part of the piston guide 7 by an expanded part of the Bolt guide 6 is surrounded.
- the driving piston 21 is in its starting position.
- the relaxed one Initial length of the molded part 11 corresponds essentially to the distance between the stop 17 of the piston guide 21 and the end face 18 on the setting direction Head part 9 minus the height of both support disks 14, 15.
- the molded part 11 has a plurality of circumferentially shaped grooves arranged at the same distance from one another 12 on. The distance between the individual shaped grooves 12 is for example 8mm to 20mm.
- the perpendicular to the longitudinal extension of the molded part 11 The cross section of the shaped grooves 12 is essentially V-shaped. Opposite the inner wall 16 of the guide bore 20, the molded part 11 and the two supporting disks 14, 15 have a smaller outside diameter.
- FIG 3 shows the driving piston 21 in the working position.
- the shaft 8 protrudes of the driving piston 21, the end face of the pin guide 6 on the setting direction.
- the molded part 11 is compressed to 20% of its original length.
- the cells are compressed and the material is radially deformed in such a way that the Outer diameter of the compressed molded part 11 the inner diameter of the Guide bore 20 corresponds to the piston guide 7.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
Description
- Fig. 1
- ein erfindungsgemässes Setzgerät in vereinfachter Darstellung;
- Fig. 2
- die Kolbenführung mit sich in der Ausgangsstellung befindlichem Treibkolben des Setzgerätes gemäss Fig. 1; in geschnittener Darstellung;
- Fig. 3
- die Kolbenführung, mit sich in der Arbeitsstellung befindlichem Treibkolben des Setzgerätes gemäss Fig. 1, in geschnittener Darstellung.
Claims (9)
- Setzgerät, das mittels hochgespannter Gase betätigbar ist mit einer Kolbenführung (7), einem in der Kolbenführung (7) axial versetzbaren, einen Schaft (8) und einen Kopfteil (9) aufweisenden Treibkolben (21), sowie einem, den Schaft (8) umgebenden, zwischen einem entgegen der Setzrichtung weisenden Anschlag (17) der Kolbenführung (7) und der setzrichtungsseitigen Stimfläche (18) des Kopfteiles (9) angeordneten Rückstellelement, dadurch gekennzeichnet, dass das Rückstellelement von einem eine überwiegend geschlossene Zellstruktur aufweisenden Formteil (11) gebildet ist.
- Setzgerät nach Anspruch 1, dadurch gekennzeichnet, dass das Formteil (11) aus einem Polyuretan-Elastomer gebildet ist.
- Setzgerät nach Anpruch 1 oder 2, dadurch gekennzeichnet, dass der Durchmesser der einzelnen Zellen der Zellstruktur des Formteiles (11) höchstens 0,5 mm beträgt.
- Setzgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Formteil (11) wenigstens eine umlaufend ausgebildete Formrille (12) aufweist.
- Setzgerät nach Anspruch 4, dadurch gekennzeichnet, dass die Formrille in einer senkrecht zur Längsachse des Formteiles (11) verlaufenden Ebene angeordnet ist und dass der sich in einer, durch die Längsachse des Formteiles (11) verlaufenden Ebene erstreckende Querschnitt der Formrille (12) im wesentlichen V-förmig ausgebildet ist.
- Setzgerät nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass an wenigstens einer Stimseite des Formteiles (11) eine Stützscheibe (14, 15) angeordnet ist.
- Setzgerät nach Anspruch 6, dadurch gekennzeichnet, dass das Formteil (11) und die Stützscheibe (14, 15) formschlüssig ineinander greifen.
- Setzgerät nach Ansspruch 8 oder 9, dadurch gekennzeichnet, dass die Stützscheibe (14, 15) aus Gummi gebildet ist.
- Setzgerät nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Aussendurchmesser in der Ausgangslänge des Formteiles (11) dem 0,65-fachen bis 0,98-fachen Innendurchmesser der Kolbenführung (7) entspricht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19635312A DE19635312A1 (de) | 1996-09-02 | 1996-09-02 | Setzgerät |
DE19635312 | 1996-09-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0826464A1 true EP0826464A1 (de) | 1998-03-04 |
EP0826464B1 EP0826464B1 (de) | 2003-10-15 |
Family
ID=7804244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97810579A Expired - Lifetime EP0826464B1 (de) | 1996-09-02 | 1997-08-19 | Pulverkraftbetriebenes Setzgerät mit Kolbenrückstellelement |
Country Status (9)
Country | Link |
---|---|
US (1) | US5901894A (de) |
EP (1) | EP0826464B1 (de) |
JP (1) | JPH1080876A (de) |
KR (1) | KR100291231B1 (de) |
CN (1) | CN1067318C (de) |
AT (1) | ATE251972T1 (de) |
CA (1) | CA2213905C (de) |
DE (2) | DE19635312A1 (de) |
TW (1) | TW340084B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1056570B1 (de) * | 1998-01-19 | 2006-07-05 | Marek " Lagodzinski | Kraftbetriebenes werkzeug mit kolben mit automatischem zurückfahren des kolbens |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19638341A1 (de) * | 1996-09-19 | 1998-03-26 | Wuerth Adolf Gmbh & Co Kg | Bolzenschubgerät und Feder dafür |
DE19755730A1 (de) * | 1997-12-15 | 1999-06-17 | Hilti Ag | Bolzensetzgerät |
AUPP247798A0 (en) | 1998-03-18 | 1998-04-23 | Rudduck, Dickory | Fixing and release systems |
AUPQ861300A0 (en) * | 2000-07-06 | 2000-08-03 | Telezygology Pty Limited | Mulit-function tool |
US6705409B2 (en) | 2001-03-22 | 2004-03-16 | Chicago Pneumatic Tool Company | Reciprocating tool having a piston retaining system |
US7600301B2 (en) * | 2002-06-19 | 2009-10-13 | Telezygology, Inc. | Fixing and release systems and fastener networks |
TW542075U (en) * | 2002-11-18 | 2003-07-11 | Chen Shiou Ru | Damping apparatus for pneumatic tool |
US20060144605A1 (en) * | 2003-11-06 | 2006-07-06 | Hsiu-Ju Chen | Shock-absorbing structure for pneumatic tool |
DE10358576A1 (de) * | 2003-12-15 | 2005-07-28 | Hilti Ag | Brennkraftbetriebenes Setzgerät |
DE10358578A1 (de) * | 2003-12-15 | 2005-07-14 | Hilti Ag | Brennkraftbetriebenes Setzgerät |
US20070215370A1 (en) * | 2006-03-01 | 2007-09-20 | Basso Industry Corp. | Shock-Absorbing Structure for Pneumatic Tool |
DE102008010100A1 (de) * | 2008-02-20 | 2009-08-27 | Robert Bosch Gmbh | Handwerkzeugmaschine |
US10926389B2 (en) * | 2018-07-31 | 2021-02-23 | Chung-Heng Lee | Powder-actuated tool |
GB2581155A (en) * | 2019-02-05 | 2020-08-12 | Accles & Shelvoke Ltd | Device for use in the humane slaughter of animals |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3050732A (en) * | 1957-11-29 | 1962-08-28 | Termet Pierre | Fastener driving interlocking pistol or tool |
US3126630A (en) * | 1964-03-31 | T catlin | ||
US3249279A (en) * | 1963-09-04 | 1966-05-03 | Behrend Herbert | Bolt and charge operated tool for driving in a bolt |
US3301335A (en) * | 1964-04-20 | 1967-01-31 | Thomas E Snelling | Energy absorbing structure |
US3331546A (en) * | 1965-06-01 | 1967-07-18 | Olin Mathieson | Piston return and buffer system |
DE1939801A1 (de) * | 1968-08-05 | 1970-02-05 | Pierre Termet | Repetiergeraet mit einer Ausnutzung der Explosionskraft einer Treibladung |
DE1908735A1 (de) * | 1969-02-21 | 1970-08-27 | Tornado Gmbh | Geraet zum Eintreiben von Bolzen od.dgl. |
US3969989A (en) * | 1973-08-02 | 1976-07-20 | Karl M. Reich Maschinenfabrik Gmbh | Impact buffer for impact drive tools |
US4134527A (en) * | 1976-05-06 | 1979-01-16 | Societe De Prospection Et D'inventions Techniques Spit | Powder charge operated apparatus |
EP0274957A1 (de) * | 1986-12-23 | 1988-07-20 | Societe De Prospection Et D'inventions Techniques Spit | Setzgerät mit Treibkolben |
EP0595160A2 (de) * | 1992-10-24 | 1994-05-04 | Wahle, Michael, Prof. Dr.-Ing. | Stossdämpfer |
EP0732178A1 (de) * | 1995-03-17 | 1996-09-18 | Adolf Würth GmbH & Co. KG | Bolzensetzgerät |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2893279A (en) * | 1957-10-18 | 1959-07-07 | Remington Arms Co Inc | Cartridge-powered impact tool |
DE2632413A1 (de) * | 1976-07-19 | 1978-01-26 | Hilti Ag | Pulverkraftbetriebenes bolzensetzgeraet mit einer abfangvorrichtung fuer den treibkolben |
DE3924620A1 (de) * | 1989-07-26 | 1991-01-31 | Hilti Ag | Pulverkraftbetriebenes bolzensetzgeraet |
-
1996
- 1996-09-02 DE DE19635312A patent/DE19635312A1/de not_active Withdrawn
-
1997
- 1997-07-03 TW TW086109366A patent/TW340084B/zh active
- 1997-08-19 EP EP97810579A patent/EP0826464B1/de not_active Expired - Lifetime
- 1997-08-19 AT AT97810579T patent/ATE251972T1/de not_active IP Right Cessation
- 1997-08-19 DE DE59710855T patent/DE59710855D1/de not_active Expired - Lifetime
- 1997-08-26 CA CA002213905A patent/CA2213905C/en not_active Expired - Fee Related
- 1997-08-29 KR KR1019970043181A patent/KR100291231B1/ko not_active IP Right Cessation
- 1997-08-29 CN CN97117552A patent/CN1067318C/zh not_active Expired - Fee Related
- 1997-09-01 JP JP9235951A patent/JPH1080876A/ja active Pending
- 1997-09-02 US US08/922,979 patent/US5901894A/en not_active Expired - Lifetime
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126630A (en) * | 1964-03-31 | T catlin | ||
US3050732A (en) * | 1957-11-29 | 1962-08-28 | Termet Pierre | Fastener driving interlocking pistol or tool |
US3249279A (en) * | 1963-09-04 | 1966-05-03 | Behrend Herbert | Bolt and charge operated tool for driving in a bolt |
US3301335A (en) * | 1964-04-20 | 1967-01-31 | Thomas E Snelling | Energy absorbing structure |
US3331546A (en) * | 1965-06-01 | 1967-07-18 | Olin Mathieson | Piston return and buffer system |
DE1939801A1 (de) * | 1968-08-05 | 1970-02-05 | Pierre Termet | Repetiergeraet mit einer Ausnutzung der Explosionskraft einer Treibladung |
DE1908735A1 (de) * | 1969-02-21 | 1970-08-27 | Tornado Gmbh | Geraet zum Eintreiben von Bolzen od.dgl. |
US3969989A (en) * | 1973-08-02 | 1976-07-20 | Karl M. Reich Maschinenfabrik Gmbh | Impact buffer for impact drive tools |
US4134527A (en) * | 1976-05-06 | 1979-01-16 | Societe De Prospection Et D'inventions Techniques Spit | Powder charge operated apparatus |
EP0274957A1 (de) * | 1986-12-23 | 1988-07-20 | Societe De Prospection Et D'inventions Techniques Spit | Setzgerät mit Treibkolben |
EP0595160A2 (de) * | 1992-10-24 | 1994-05-04 | Wahle, Michael, Prof. Dr.-Ing. | Stossdämpfer |
EP0732178A1 (de) * | 1995-03-17 | 1996-09-18 | Adolf Würth GmbH & Co. KG | Bolzensetzgerät |
Non-Patent Citations (1)
Title |
---|
SAECHTLING: "INTERNATIONAL PLASTICS HANDBOOK", 26 July 1985, MACMILLAN PUBLISHING CO..,INC., NEW YORK, XP002047542, 15 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1056570B1 (de) * | 1998-01-19 | 2006-07-05 | Marek " Lagodzinski | Kraftbetriebenes werkzeug mit kolben mit automatischem zurückfahren des kolbens |
Also Published As
Publication number | Publication date |
---|---|
DE19635312A1 (de) | 1998-03-05 |
EP0826464B1 (de) | 2003-10-15 |
KR100291231B1 (ko) | 2001-06-01 |
DE59710855D1 (de) | 2003-11-20 |
CN1176164A (zh) | 1998-03-18 |
CA2213905C (en) | 2002-01-15 |
CN1067318C (zh) | 2001-06-20 |
ATE251972T1 (de) | 2003-11-15 |
CA2213905A1 (en) | 1998-03-02 |
KR19980024212A (ko) | 1998-07-06 |
JPH1080876A (ja) | 1998-03-31 |
US5901894A (en) | 1999-05-11 |
TW340084B (en) | 1998-09-11 |
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