EP0600202B1 - Steuerventileinrichtung - Google Patents

Steuerventileinrichtung Download PDF

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Publication number
EP0600202B1
EP0600202B1 EP93116835A EP93116835A EP0600202B1 EP 0600202 B1 EP0600202 B1 EP 0600202B1 EP 93116835 A EP93116835 A EP 93116835A EP 93116835 A EP93116835 A EP 93116835A EP 0600202 B1 EP0600202 B1 EP 0600202B1
Authority
EP
European Patent Office
Prior art keywords
trigger
sleeve
valve
valve spool
control
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
EP93116835A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0600202A1 (de
Inventor
Joachim Bauer
Klaus Albrecht
Rolf Krahmer
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.)
Joh Friedrich Behrens AG
Original Assignee
Joh Friedrich Behrens 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 Joh Friedrich Behrens AG filed Critical Joh Friedrich Behrens AG
Publication of EP0600202A1 publication Critical patent/EP0600202A1/de
Application granted granted Critical
Publication of EP0600202B1 publication Critical patent/EP0600202B1/de
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
    • B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
    • B25C1/041—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure with fixed main cylinder
    • B25C1/042—Main valve and main cylinder

Definitions

  • the invention relates to a control valve device according to the preamble of claim 1.
  • a control valve device of the above type is known from EP-B-0 326 639.
  • the second active surface of the auxiliary valve slide is connected to a bore directed towards the trigger, which is connected to the atmosphere when the trigger is not actuated.
  • a section of the trigger carries a sealing element which seals the bore when the trigger is actuated.
  • the sealing element is made of an elastomer and plug-shaped a conical tip at its end. It sits in the bore of an adjusting screw, which in turn is arranged in a threaded bore of the trigger.
  • a trigger valve designed as a tappet valve is triggered when the trigger is actuated by a first adjustment path. This causes single-shot operation. If the trigger lever is adjusted a total of a second adjustment path, the sealing element closes the hole and the device operates in automatic mode. It is disadvantageous that the trigger lever for automatic operation must be held in a position in which the conical tip of the sealing element seals the opening. This requires a certain operating force and this leads to a relatively cramped grip position. Device vibrations are transmitted relatively intensively to the operator's hand. It is also disadvantageous that the release lever has a crank in the area of the sealing element, so that it can be grasped relatively comfortably by a hand encompassing the housing only in a rear grip area.
  • the object of the invention is to improve the control valve device in such a way that it has more favorable handling properties.
  • the changeover valve is designed as a tappet valve, which allows a certain actuation thrust even after actuation.
  • the driving tool shown partly in section in FIGS. 1 to 4 has a housing 10 and a working cylinder 11 which receives a driving piston 12 to which a driving plunger 13 is connected. At the lower end of the working cylinder 11, a brake ring 14 is arranged.
  • the working cylinder 11 is surrounded by a piston return chamber 15 which is connected to the working cylinder 11 via first radial bores 16 and second radial bores 17.
  • the bores 16 on the return chamber 15 side are closed by an O-ring 18 which forms a check valve.
  • the housing 10 has a handle part 20 in which a reservoir 21 for compressed air is formed.
  • the reservoir 21 can be connected to a compressed air source, for example, via a compressed air hose.
  • a ventilation channel 22 is formed in the handle part 20, which is connected to the atmosphere.
  • a one-sided release lever 23 is mounted on the underside of the handle part 20. This has a pivot bearing 24 on the housing 20 in the vicinity of the working cylinder 11.
  • the one-sided release lever 23 is for bent free end down, but has a substantially flat contact surface 25th
  • a bore 30 in the grip part 20 is connected to a channel 31, which leads to the working space 32 of the cylinder 11. Above, the working stroke 32 is closed off by a cover plug 33.
  • the bore 30 connects the reservoir 21 to the channel 31 and extends in the housing 20 to an opening above the release lever 23.
  • a control valve module 40 is inserted into the bore 30.
  • This has a main valve slide 41 and an auxiliary valve slide 42.
  • the main valve spool 41 is designed as a stepped piston with an end-side active surface 43 facing the reservoir 21 and an oppositely directed larger active surface 45 facing a main control chamber 44.
  • the piston section of the main valve spool 41 having the smaller active surface 43 has a relatively voluminous sealing ring 46 with a rectangular cross-section.
  • the ring 46 cooperates with an upper valve seat on its upper end face, as a result of which the connection between the reservoir 21 and the channel 31 is interrupted.
  • the lower end face of the ring 46 acts with an inwardly projecting sealing edge 47 together a socket 48 which is sealingly received by the bore 30.
  • the bushing bore guides the piston section with the larger active surface 45 of the main valve slide 41 in a sliding and sealing manner.
  • a gap 49 is formed which, in the position of the main valve slide according to FIG. 1, connects the channel 31 to an interior part 50 of the socket.
  • the interior part 50 is arranged on the side of the larger piston section of the main valve slide 41 facing away from the main control chamber 44 and is continuously connected to the ventilation channel 22 via radial bores 51 and an annular collecting channel 52 around the control valve module.
  • working stroke space 32 is under atmospheric pressure.
  • the main valve slide 41 is completely penetrated by a central bore 53 which receives the upper end of a control sleeve 54 in an enlarged section. This has a radial flange 55, which is held sealingly on the outside.
  • the control sleeve 54 has a plurality of radial bores 56 which connect a central bore 57 of the control sleeve 54 to the main control chamber 44.
  • the main control chamber 44 is thus from the control sleeve 54, the bush 48 and the larger effective area 45 of the main valve spool 41 limited.
  • the bushing 48 and the flange 55 of the control sleeve 54 are held in a sealed manner in a stepped receptacle 58 of a carrier bushing 59.
  • the carrier bushing 59 is inserted into the bore 30 and held therein by means of an external thread 60. Bores 61, 62 of flange 55 and carrier bushing 59 communicating with one another open into the annular collecting groove 52 and connect the bore 57 of the control sleeve 54 to the atmosphere.
  • the bore 57 of the control sleeve 54 receives the upper cylindrical section of the auxiliary valve spool 42 while forming an annular gap.
  • This has two spaced-apart O-rings 63, 64 at the top.
  • the upper O-ring 63 is arranged in an annular groove 65 of the control sleeve 54, into which the radial bores 56 open.
  • a gap is formed between the O-ring 63 and the annular groove 65, which connects the radial bores 56 to the bores 57 and 53, so that the main control chamber 44 is connected to the reservoir 21.
  • the lower O-ring 64 lies between the radial bores 56 and 61 in a sealing manner against the bore 57 of the control sleeve 54, so that the path from the radial bores 56 via the bores 61, 62 and the ring collecting channel 52 to the ventilation channel 22 is blocked.
  • the flange 55 of the control sleeve 54 has a downwardly extending sleeve extension 66, in which the upper, cylindrical section of the auxiliary valve slide 42 is sealingly guided by an O-ring 67 carried by it.
  • the auxiliary valve slide 42 has a first and a second piston section 68, 69, which are sealingly guided in first and second bores 70, 71 of the carrier bush 59.
  • the first and second piston sections 68, 69 have piston active surfaces 72, 73, the second piston active surface being larger than the first.
  • the second piston active surface 73 faces the main valve slide 41 and the first piston active surface 72 is directed in the opposite direction.
  • the second bore 71 is connected via radial bores 74 to an annular channel 75 of the carrier bush 59.
  • the annular channel 75 is connected on the one hand via a channel 76, which contains a throttle 77, to the working space 32 and, on the other hand, via a channel 78 to a changeover valve 79. Throttle 77 and changeover valve 79 will be discussed below.
  • the first piston section 68 has a first active surface 72 facing away from the main valve slide 40 and is cup-shaped.
  • a third piston section 80 of the auxiliary valve slide 42 is arranged centrally in it and is also directed away from the main valve slide 41.
  • Of the third piston section 80 is sealingly guided in a release valve bushing 81, which engages between the latter and the first piston section 68 and is sealingly held in the carrier bushing via a radial flange 82.
  • the release valve bushing 81 with the radial flange 82, the first bore 70 and the first piston section 68 delimit a first auxiliary control space 83
  • a second auxiliary control space 84 is delimited by the second piston portion 69, the second bore 71 and the flange 55.
  • the bore 71 is connected to the atmosphere via a ventilation line 85.
  • a trigger plunger 90 is arranged in the trigger valve bushing 81, which has radial play with the trigger valve bushing everywhere.
  • the trigger plunger 90 has sealing surfaces 92, 93 on both sides of a constriction 91, which has a polygonal cross section.
  • the trigger valve bushing 81 has corresponding sealing surfaces 94, 95, O-rings being arranged between the mutually corresponding sealing surfaces.
  • the sealing surfaces 92, 93 of the trigger plunger 90 are spaced further apart than the sealing surfaces 94, 95 of the trigger valve bushing 81, so that, taking into account the intermediate O-rings, a there is slight axial mobility of the trigger plunger 90. In its position according to FIG.
  • Main valve slide 41, auxiliary valve slide 42, control sleeve 54 and the release valve 98 defined by release plunger 90 and release valve sleeve 81 are combined with the support sleeve 59 to form the control valve module 40, which can be completely inserted into or removed from the bore 30 by means of screws.
  • the changeover valve 79 is inserted into a secondary bore 100 and held therein on an adjusting thread 101 of a sleeve 102.
  • the changeover valve 79 has a tappet 103 arranged in the sleeve 102, an annular gap 104 being formed between the sleeve and the tappet.
  • the plunger 103 has a widened head 105, which in FIG. 1 bears against the inner end face of the adjusting sleeve 102.
  • a cavity 106 of the bore 100 remains above the head 105, which is connected to the channel 78 and into which the head 105 can be pushed.
  • the bore 100 is continuously connected to the annular gap 104 between the plunger 103 and the sleeve 102 via radial bores 107 of the adjusting sleeve 102.
  • the tappet 103 carries an O-ring 108, to which a conical sealing surface 109 of the sleeve 102 is assigned. 1, an outlet opening remains between the O-ring 108 and the flared sealing surface 109, which can be closed deeper into the bore 100 by pushing the plunger 103.
  • the opening position of the plunger 103 shown is set automatically when compressed air driving the plunger 103 to the outside is present in the bore 106. In the open position shown, however, the second auxiliary control chamber 84 is connected to the atmosphere via the channel 78, the bore 100, the radial bores 107, the annular gap 104 and the outlet opening.
  • the throttle 77 has a throttle needle 110 with a screw head 111, which is held in a longitudinally adjustable manner on a threaded section 112 in a throttle bushing 113.
  • the throttle needle 110 has a weakly conical throttle tip 114 which is adjustable in a cylindrical bore 115 of the throttle bushing 113.
  • Radial bores 116, 117 of the throttle bushing 113 are arranged on both sides of the cylindrical bore 115, which open into outer annular grooves 118, 119 of the throttle bushing 113, which are each connected to one of the two sections of the channel 76 containing the throttle 77.
  • the passage gap between the throttle tip 114 and the bore 115 can be varied by axially adjusting the needle 110 in the throttle bushing 113, as a result of which the flow rate between the annular gaps 118 and 119 can be influenced.
  • the described control valve device works as follows.
  • Fig. 1 shows the unactuated state again.
  • the trigger lever 23 can be held in the unactuated position by a spring device, not shown. It is thus spaced apart from the plungers 90, 103 by the release valve 98 and the changeover valve 79.
  • the cavity 96 is constantly connected to the reservoir 21, so that the trigger plunger 90 is flexible is held in the drawn position.
  • the auxiliary control chamber 83 is connected to the atmosphere, as already explained above.
  • the changeover valve 79 is also in the open position, so that the second auxiliary control chamber 84 is also connected to the atmosphere.
  • the auxiliary valve spool 42 is pressurized with compressed air on one end face within the bore 57 and on its other end face within the cavity 96 and is held in the position shown, since the former end surface is larger than the second mentioned.
  • the arrangement of the O-rings 63, 64 of the auxiliary valve slide 42 to the control sleeve 54 is such that the main control chamber 44 is connected to the reservoir 21.
  • the driving piston 12 thus remains in its upper end position under the influence of its seal to the cylinder 11.
  • the trigger lever 23 If the trigger lever 23 is pivoted according to FIG. 3 by a first adjustment path, the inside of it first abuts the trigger plunger 90 of the trigger valve 98 and pushes it deeper into the trigger valve bushing 81. Finally, the sealing surfaces 93, 95 reach mutual sealing and the seal between the sealing surfaces 92, 94 is broken. As a result, the connection of the auxiliary control chamber 83 to the atmosphere is released and its connection with the cavity 96 and the compressed air therein from the reservoir 21 is effected. In the first auxiliary control chamber 83, the compressed air acts on the first active surface 72 of the auxiliary valve spool 42 so that it is displaced in the direction of the main valve spool 41.
  • the second auxiliary control chamber 84 is also connected to the atmosphere via the non-actuated changeover valve 79, so that the second active surface 73 does not oppose the movement of the auxiliary valve slide 42 into the position shown.
  • the first effective surface 72 is dimensioned such that when compressed air is applied it overcomes the force in the opposite direction caused by different sized, pressurized end faces.
  • the ventilation bore 85 effects a pressure equalization of the stroke volume on the side of the second piston section 69 facing away from the second auxiliary control chamber 84 with each movement of the auxiliary valve slide 42.
  • the upper O-ring 63 seals the annular gap between the cylindrical section of the auxiliary valve slide and the control sleeve 54 towards the reservoir 21 and is the lower O-ring 64 in the FIGS Area of the annular groove 65 of the control sleeve 54 moved. Consequently, the main control chamber 44 is connected to the vent line 22 via the radial bores 56, annular groove 65 and the annular gap between the auxiliary valve slide 42 and the control sleeve 54 with the radial bores 61, 62 and the annular manifold 52. The compressed air from the reservoir 21 still acts on the small effective surface 43 of the main valve spool 41, so that it is pressed into the position shown.
  • Compressed air from the reservoir 21 passes through the bore 30 and the channel 31 into the working space 32 and presses the driving piston 12 downward.
  • compressed air flows via the channel 76 and the throttle 77 into the second auxiliary control chamber 84, where, however, due to the reversing valve 79 which is still open to the atmosphere, no pressure can build up which could drive the auxiliary valve slide 42 back into its initial position.
  • the release lever 23 is relieved, it moves back into its starting position according to FIG. 1, the release plunger 90 also being brought back into its open position by the compressed air in the cavity 96.
  • the first auxiliary control chamber 83 empties through the outlet opening of the release valve 98 and the pressure at the first active surface 72 of the auxiliary valve slide 42 drops to atmospheric pressure.
  • the trigger lever 23 according to FIG. 4 is to be pivoted towards the housing 10 at least into a second pivoting position.
  • the second pivot position is characterized in that the O-ring 108 of the plunger 103 bears sealingly against the bore of the adjusting sleeve 102 and closes the gap 104 between the plunger and the adjusting sleeve. From reaching the second travel range, the second Auxiliary control room 84 does not escape compressed air via channel 78 and changeover valve 79 and an increased air pressure builds up in the second auxiliary control room.
  • the same processes initially take place as they occur in single-shot operation by actuation by at least the first adjustment path until the trigger lever is released. It does not matter whether the release lever 23 is initially adjusted by the first adjustment path and after a first shot to the second adjustment path or directly to the second adjustment path. However, if the second adjustment path has been reached, an increased air pressure gradually builds up in the second auxiliary control chamber 84 after the main valve slide 41 has been moved into the open position via the channel 76 and the throttle 77. The increase in this air pressure depends on the throttle setting. It also loads the auxiliary valve slide 42 in the direction of the trigger plunger 90.
  • the second active surface 73 and the pressure increase are dimensioned such that this additional force counteracts the force from the pressure acting on the first active surface 72 and with the resulting force from the pressure acting on the two end faces
  • Auxiliary valve slide 42 moves to the trigger plunger 90.
  • the O-ring 64 is brought into the sealing position on the inner wall of the control sleeve 54 and the O-ring 63 is moved into the annular groove 65, so that the connection of the main control chamber 44 to the vent line 22 is blocked and the main control chamber is connected to the reservoir 21 becomes.
  • the main valve slide 41 being moved into the closed position, in which the connection between the reservoir 21 and the channel 31 is closed and the channel 31 is connected to the vent line 22.
  • the air arranged above it in the cylinder is able to escape from the ventilation line 22.
  • the pressure in the second auxiliary control chamber 84 is also pulled down via the channel 76 and the throttle 77, and the force pushing the auxiliary valve slide 42 toward the trigger plunger 90 is reduced.
  • the pressure in the second auxiliary control chamber 84 drops so much that the pressure acting on the first active surface 72 is able to push the auxiliary valve slide 42 back into its upper position contrary to the resultant pressure on the two end surfaces, in which the connection of the main control room 44 to the reservoir 21 is prevented and the main control room is connected to the vent line 22.
  • the main valve slide opens and a new working cycle of the piston 12 begins. The work cycles are repeated as long as the trigger lever 23 remains actuated by the second adjustment path.
  • the equipment of the release valve 98 and the changeover valve 79 with plungers 90 and 103 enables the release lever 23 to be pivoted further, which facilitates the handling of the driving tool.
  • the plungers 90, 103 are further pushed out of the bushing 81 or the screw sleeve 102 by the pressure in the cavities 96, 106 until they connect the first auxiliary control chamber 83 and the second auxiliary control chamber 84 to the atmosphere release.
  • the pressure at the first active surface 72 and the second active surface 73 drops to atmospheric pressure, so that the auxiliary valve slide 42 is acted upon by compressed air only on its two end surfaces.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Fluid-Driven Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Multiple-Way Valves (AREA)
EP93116835A 1992-12-02 1993-10-19 Steuerventileinrichtung Expired - Lifetime EP0600202B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9216386U 1992-12-02
DE9216386U DE9216386U1 (de) 1992-12-02 1992-12-02 Steuerventileinrichtung

Publications (2)

Publication Number Publication Date
EP0600202A1 EP0600202A1 (de) 1994-06-08
EP0600202B1 true EP0600202B1 (de) 1995-08-16

Family

ID=6886651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116835A Expired - Lifetime EP0600202B1 (de) 1992-12-02 1993-10-19 Steuerventileinrichtung

Country Status (6)

Country Link
US (1) US5370037A (enrdf_load_stackoverflow)
EP (1) EP0600202B1 (enrdf_load_stackoverflow)
JP (1) JP3505606B2 (enrdf_load_stackoverflow)
DE (2) DE9216386U1 (enrdf_load_stackoverflow)
ES (1) ES2078094T3 (enrdf_load_stackoverflow)
TW (1) TW249829B (enrdf_load_stackoverflow)

Families Citing this family (26)

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Publication number Priority date Publication date Assignee Title
IT1279670B1 (it) * 1995-11-02 1997-12-16 Fasco Spa Fissatrice ad aria compressa a valvola in testa funzionante a colpo singolo e a ripetizione.
US5653369A (en) * 1995-11-16 1997-08-05 Stanley-Bostitch, Inc. Fastener driving device with improved control valve assembly and trigger sensitivity adjustment
US5628444A (en) * 1995-11-16 1997-05-13 Stanley-Bostitch, Inc. Fastener driving device with main valve/frame valve arrangement
DE69703360T2 (de) * 1996-12-06 2001-05-23 Stanley Fastening Systems L.P., East Greenwich Eintreibgerät für befestigungsmittel mit verbessertem betätigungsmechanismus
US6012622A (en) * 1998-04-20 2000-01-11 Illinois Tool Works Inc. Fastener driving tool for trim applications
ITBO20030740A1 (it) * 2003-12-10 2005-06-11 Fasco Spa Macchina fissatrice pneumatica
DE202007006646U1 (de) * 2006-05-09 2007-08-09 SAMSON POWER TOOL CO., LTD., Ta Li City Schaltmechanismus für Auslöser von Druckluftwerkzeugen
US7932586B2 (en) 2006-12-18 2011-04-26 Mediatek Inc. Leadframe on heat sink (LOHS) semiconductor packages and fabrication methods thereof
US8221433B2 (en) * 2009-05-26 2012-07-17 Zimmer, Inc. Bone fixation tool
JP5716395B2 (ja) * 2010-12-28 2015-05-13 日立工機株式会社 打込機
CA2878713C (en) 2012-07-11 2020-09-22 Zimmer, Inc. Bone fixation tool
EP2767365B1 (de) * 2013-02-19 2016-12-28 Joh. Friedrich Behrens AG Druckluftnagler mit einem handbetätigbaren Auslöser und einem Aufsetzfühler
US10179017B2 (en) 2014-04-03 2019-01-15 Zimmer, Inc. Orthopedic tool for bone fixation
DE102015000041B3 (de) * 2015-01-09 2016-02-04 Prebena Wilfried Bornemann Gmbh & Co. Kg Druckluftbetriebene Austreibvorrichtung
US10395858B2 (en) * 2015-03-04 2019-08-27 Snap-On Incorporated Replaceable trigger components
TWI696527B (zh) * 2016-03-18 2020-06-21 鑽全實業股份有限公司 氣動工具的安全性擊發控制裝置
EP3257633B1 (de) * 2016-06-15 2018-10-17 Joh. Friedrich Behrens AG Druckluftnagler mit sicherheitssteuerkammer
EP3257632A1 (de) * 2016-06-15 2017-12-20 Joh. Friedrich Behrens AG Druckluftnagler mit einzel- und kontaktauslösung
US10966704B2 (en) 2016-11-09 2021-04-06 Biomet Sports Medicine, Llc Methods and systems for stitching soft tissue to bone
EP3473385A1 (de) * 2017-10-18 2019-04-24 Joh. Friedrich Behrens AG Druckluftnagler mit einem sicherheitsstellglied
EP3479963B1 (de) * 2017-11-01 2020-12-09 Joh. Friedrich Behrens AG Druckluftnagler mit sicherheitsventilanordnung
JP7114934B2 (ja) * 2018-03-01 2022-08-09 マックス株式会社 空気圧工具
JP7156497B2 (ja) * 2019-03-14 2022-10-19 工機ホールディングス株式会社 打込機
JP7435311B2 (ja) * 2020-06-30 2024-02-21 マックス株式会社 空気圧工具
CN112792788B (zh) * 2021-01-31 2024-07-02 广东明晖气动科技有限公司 气动钉枪
CN113134809B (zh) * 2021-04-16 2024-07-02 广东明晖气动科技有限公司 气动钉枪

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Publication number Priority date Publication date Assignee Title
US3255674A (en) * 1964-01-29 1966-06-14 Swingfast Inc Pneumatic fastener and like driving machine
DE1603710A1 (de) * 1966-03-11 1970-09-17 Behrens Friedrich Joh Druckluftbetaetigtes Eintreibgeraet zum Einschlagen von Befestigungsmitteln
GB1226837A (enrdf_load_stackoverflow) * 1967-07-13 1971-03-31
US3547003A (en) * 1968-06-17 1970-12-15 Fastener Corp Fastener driving tool
DE2104949A1 (de) * 1970-02-11 1971-08-26 Scala Raincomatic S.r.l., Bologna (Italien) Automatische mit Druckluft beaufschlagte Einschlagpistole für das Einschlagen von Bolzen, Nägeln, Heftklammern u.dgl. mit wahlweiser Einstellung der Ausstoßhäufigkeit
US3685396A (en) * 1970-06-15 1972-08-22 Fastener Corp Fastener driving tool
US4716813A (en) * 1985-05-06 1988-01-05 Stanley-Bostitch, Inc. Pneumatically operated stapler with improved actuating and clinching mechanism
DE8801114U1 (de) * 1988-01-30 1988-03-31 Joh. Friedrich Behrens AG, 2070 Ahrensburg Steuerventileinrichtung an einem mit Druckluft betriebenen Gerät zum Eintreiben von Befestigungsmitteln

Also Published As

Publication number Publication date
EP0600202A1 (de) 1994-06-08
JP3505606B2 (ja) 2004-03-08
JPH06206175A (ja) 1994-07-26
DE9216386U1 (de) 1993-02-11
DE59300488D1 (de) 1995-09-21
ES2078094T3 (es) 1995-12-01
US5370037A (en) 1994-12-06
TW249829B (enrdf_load_stackoverflow) 1995-06-21

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