EP1399297B1 - Druckmittelbetriebene austreibvorrichtung - Google Patents

Druckmittelbetriebene austreibvorrichtung Download PDF

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Publication number
EP1399297B1
EP1399297B1 EP02747401A EP02747401A EP1399297B1 EP 1399297 B1 EP1399297 B1 EP 1399297B1 EP 02747401 A EP02747401 A EP 02747401A EP 02747401 A EP02747401 A EP 02747401A EP 1399297 B1 EP1399297 B1 EP 1399297B1
Authority
EP
European Patent Office
Prior art keywords
driving
piston
pressure medium
cylinder
pressure
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
EP02747401A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1399297A1 (de
Inventor
Gerhard Kral
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.)
Prebena Wilfried Bornemann GmbH and Co KG
Original Assignee
Prebena Wilfried Bornemann GmbH and Co KG
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 Prebena Wilfried Bornemann GmbH and Co KG filed Critical Prebena Wilfried Bornemann GmbH and Co KG
Publication of EP1399297A1 publication Critical patent/EP1399297A1/de
Application granted granted Critical
Publication of EP1399297B1 publication Critical patent/EP1399297B1/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

Definitions

  • the present invention relates to a fluid-operated expulsion device according to the preamble of claim 1.
  • the US 3106136 A shows a pressure-medium driven expelling device for expelling objects from a reservoir by means of a pressure-medium-loaded driving piston, wherein the pressure medium loading serves both to carry out a feed movement and to perform a return movement of the driving piston.
  • an expulsion device in which a device body is provided with a pressure medium memory removably arranged thereon, which is triggered by a valve device for pressurizing a piston, which is connected to a percussion tappet.
  • the accumulator is formed in the known expulsion device as a CO 2 cartridge whose filling pressure acts on actuation of a triggering device on the piston connected to the percussion plunger and thereby causes a feed movement of the percussion plunger.
  • the object of the present invention is to make it possible to increase the expulsion frequency and the operating time in the case of a expulsion device which is provided with an exchangeable accumulator and thus can be operated independently of the mains.
  • the expulsion device has an interchangeable with a device body associated pressure fluid accumulator, and the device body has a from the pressure medium reservoir by means of a pressure reducing device separate pressure chamber for pressure medium loading of the driving piston having a reduced relative to the filling pressure of the pressure medium accumulator working pressure. Due to the interposed arrangement of the pressure reducing device, the filling pressure in the pressure fluid reservoir can be increased to a multiple of the working pressure, so that a significantly increased service life of the expelling device is achieved before a replacement of the pressure fluid reservoir necessary.
  • a release device for triggering the Druckstoffbeauchlagung the driving piston, which simultaneously serves to actuate a vent valve means for venting a driving piston receiving the driving cylinder, a synchronization between the pressure medium and the activation of the vent valve device is realized in a simple manner.
  • a particularly direct mechanical realization of the synchronization and thus also particularly short working cycles of the expulsion device become possible when the venting valve device is coupled to the triggering device via a plunger device.
  • the venting valve device is designed as a piston valve with a valve axis which intersects the driving cylinder axis.
  • very high switching cycle numbers of the valve device are made possible by the design of the valve device as a piston valve.
  • the drive cylinder axis intersecting arrangement of the valve device allows a particularly effective and thus fast venting of the drive cylinder on the cylinder bottom.
  • the drive piston of the drive cylinder simultaneously serves as a control piston for carrying out the pressure-medium-actuated return movement of the drive piston in the drive cylinder, due to the function-integrated effect of the drive piston, the constructive realization of a pressure-medium-actuated drive piston return with a very low cost of mechanical parts possible.
  • the drive cylinder is surrounded in the region of its expulsion by an annular chamber with an arranged at a distance from the end cross section of the displacement of the drive cylinder inflow and arranged in the region of the end cross-section, opening into the displacement Outflow device, wherein the distance between the inflow device and the outflow device corresponds at least to the axial extent of the drive piston.
  • a further increase in the effectiveness of the use of the pressure fluid reservoir provided pressure potential is possible when the driving cylinder has at its expulsion end a cylinder base with a ram passage for a drive piston connected to the drive piston, with a arranged in the ram passage radial sealing device.
  • a largely pressure medium-tight seal of the necessary relative movement of the drive plunger annular gap between the drive rod and the plunger bushing is possible, so that leakage through the annular gap can be largely prevented.
  • the sealing device is arranged in the cylinder bottom, any configuration of the sealing seat is possible independently of influencing themaschinerumbles.
  • the expulsion device for expelling objects, ie solids, or even fluid substances.
  • the reservoir is designed as a magazine device for receiving mechanical fastening means and the driving ram serves to impact a sporadically received in a arranged on the magazine device firing channel fastener
  • the expelling device can be used in a particularly advantageous manner, for example as a nail device.
  • the reservoir is designed as a liquid reservoir
  • the drive plunger is used to pressurize a quantity of liquid received in a metering device arranged on the liquid storage device.
  • This amount of liquid may be, for example, a liquid dye which is expelled in metered quantities, for example for the production of colored dots. It is also possible to meter amounts of adhesive, for example for the production of adhesive dots.
  • Fig. 1 1 shows a side view of an overall illustration of an expulsion device 10.
  • the expulsion device 10 comprises a device body 11 with a gripping part 12 and a driving piston / cylinder unit 13, wherein the gripping part 12 has a pressure medium reservoir 14 for receiving compressed gas and the driving piston / cylinder unit 13 a reservoir formed here as a magazine device 15 is connected.
  • the handle part 12 is detachably connected to the accumulator 14 at its end facing away from the driving piston / cylinder unit 13 via a coupling device 16, which may for example be designed as a screw thread.
  • a coupling device 16 which may for example be designed as a screw thread.
  • adjustable working pressure for the driving piston / cylinder unit 13 is provided in the handle part 12 a separate from the accumulator 14 via a pressure reducing device 17 pressure chamber 18.
  • a filling valve device 19 for acting on a Driving piston 20 of the driving piston / cylinder unit 13 with the working pressure upon actuation of the filling valve means 19 by a triggering device 21 is arranged.
  • the filling valve device 19 has a sealing element pretensioned in the valve opening direction by a valve spring 66, which is pressed against a valve opening 54 by a valve stem 24 acted upon by a closing spring 71 for sealing. How out Fig.
  • a trigger lever 22 of the triggering device 21 is mechanically coupled to a valve piston 27 of a venting valve device 28 via a push rod 25 extending transversely to a valve axis 23 of the filling valve device 19 and a tilting lever 26 mounted in the handle part 12.
  • vent valve means 28 for releasing or closing a vent opening 29 in one of the vent valve means 28 adjacent arranged first cylinder bottom 30 of a drive cylinder 31 of the drive piston / cylinder unit 13.
  • the vent valve device 28 includes this purpose a valve body 32 which is between the vent opening 29th in the cylinder bottom 30 and a housing vent 33 is arranged so that a valve axis 64 of the vent valve means 28 a grasperachse 65 of the drive cylinder 31 intersects.
  • the venting takes place via a valve bore 34 arranged in the venting path (FIG. Fig. 2 ) of the vent valve device 28, wherein the valve bore 34 simultaneously serves to receive the valve piston 27.
  • valve piston 27 radial here designed as an O-ring seal means 35 that the sealing means 35 by means of a corresponding axial movement in a valve piston 27 coaxial Valve bore 62 of the vent valve device 28 is moved in or out.
  • a valve pin 36 of the valve piston 27 another, here also designed as an O-ring radial sealing means 37 which forms an annular gap-shaped sealing chamber 38 in cooperation with the first sealing means 35, the fluid technically via a radial annular channel means 39 with the vent opening 29 of the drive cylinder 31 is connected.
  • the drive piston / cylinder unit 13 has the drive cylinder 31 inserted into a housing 40 and the drive piston 20 axially displaceable in the drive cylinder 31.
  • an annular chamber 42 is formed in the region of an expelling end 41 of the driving piston / cylinder unit 13, which is provided via a first annular channel device 43 provided as an inflow device and axially spaced from the annular channel device 43 via a second annular channel device designed as an outflow device 44 is connected to a displacement or lumen 45 of the drive cylinder 31.
  • the annular channel device 43 is provided on the outer wall of the driving cylinder 31 with an annular groove 69 in which an elastically biased O-ring seal 70 is arranged.
  • the axial distance of the annular channel means 43 and 44 is chosen so that it is at least slightly larger than the axial dimension of the driving piston 20th
  • the drive piston 20 is formed in the present case as a sleeve into which a drive rod 46 is screwed with a screw 47.
  • a second cylinder bottom 49 is arranged, which is provided with a ram passage 50, in which the drive rod 46 engages with a positioning of the drive piston 20 in the region of the expulsion end 41 with a sealing collar 51.
  • a radial sealing device 63 designed here as an O-ring is provided in the plunger bushing 50 3 and 4 shown axial positions of the drive piston sealingly abuts the drive rod 46.
  • the cylinder bottoms 30 and 49 are made in the present case of an elastomeric material.
  • a duty cycle of the expelling device 10 comprising an axial advancing movement of the driving piston 20 until it abuts against the cylinder base 49 disposed at the expulsion end 41 and a return movement of the driving piston 20 until it abuts against the exhaust-air-side cylinder bottom 30 located adjacent the vent opening 29 of the drive cylinder 31.
  • the trigger lever 22 is actuated so that the push rod 25 is moved against the rocker arm 26, which in turn acts on a plunger end 55 of the valve piston 27 of the vent valve means 28 and against the action of a return spring 56th ( Fig. 2 ) the valve piston 27 is advanced axially to the sealing closure of the vent opening 29.
  • the trigger 22 detects one on the trigger lever 22nd pivotally arranged driving pawl 52 an annular bead 53 of the valve stem 24 and arranged at the lower end of the pressure chamber 18 valve opening 54 (FIG. Fig.
  • the drive piston is accelerated axially together with the drive ram 46 arranged thereon up to the stop against the cylinder base 49 arranged at the drive end 41 (FIG. Fig. 4 ). Since the driver contact between the driving pawl 52 and the annular bead 53 on the valve tappet 24 of the filling valve device 19 is formed so that there is a rolling contact between the driving pawl 52 and the annular bead 53 when the trigger lever 22 is actuated, after reaching a defined lever travel of the trigger lever 22 detected by the driving pawl 52 annular bead is released again and closed the valve opening 54 of the pressure chamber 18 via the valve operated by the closing spring tappet 24 again.
  • the stop of the driving piston 20 against the cylinder bottom 49 can be omitted due to a too large material resistance when driving a arranged in the firing channel 59 steel pin 58 in a material, for example caused by a branch area in a board to be nailed.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Reciprocating Pumps (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Fluid-Pressure Circuits (AREA)
EP02747401A 2001-06-28 2002-06-17 Druckmittelbetriebene austreibvorrichtung Expired - Lifetime EP1399297B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20110754U 2001-06-28
DE20110754U DE20110754U1 (de) 2001-06-28 2001-06-28 Netzunabhängiges Eintreibgerät für Befestigungsmittel
PCT/EP2002/006657 WO2003002308A1 (de) 2001-06-28 2002-06-17 Druckmittelbetriebene austreibvorrichtung

Publications (2)

Publication Number Publication Date
EP1399297A1 EP1399297A1 (de) 2004-03-24
EP1399297B1 true EP1399297B1 (de) 2008-10-29

Family

ID=7958681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02747401A Expired - Lifetime EP1399297B1 (de) 2001-06-28 2002-06-17 Druckmittelbetriebene austreibvorrichtung

Country Status (10)

Country Link
US (1) US6845896B2 (zh)
EP (1) EP1399297B1 (zh)
JP (1) JP2004520959A (zh)
KR (1) KR100578517B1 (zh)
CN (1) CN1290671C (zh)
AT (1) ATE412493T1 (zh)
DE (2) DE20110754U1 (zh)
ES (1) ES2314072T3 (zh)
TW (1) TWI253970B (zh)
WO (1) WO2003002308A1 (zh)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6786379B2 (en) * 2002-01-04 2004-09-07 Ilinois Tool Works Inc. Fastener driving tool having pressurized power source
CN100445043C (zh) * 2002-01-04 2008-12-24 伊利诺斯器械工程公司 带压缩动力源的紧固件驱动工具
DE202005003422U1 (de) 2005-03-03 2005-05-19 Prebena Wilfried Bornemann Gmbh & Co. Kg Vorrichtung zur Anbringung an druckluftbetriebene Geräte
US7637406B2 (en) * 2005-05-08 2009-12-29 Shenzhen Yuanheng Electronmagnetic Tech. Co., Ltd. Nailing machine driven by pressurized gas in liquid state
US7845532B2 (en) * 2006-11-09 2010-12-07 Stanley Fastening Systems, L.P. Cordless fastener driving device
KR101038486B1 (ko) * 2008-09-03 2011-06-01 쌍용건설 주식회사 패커를 이용한 비굴착식 하수관로 보수 장치 및 방법
DE102008051349B3 (de) * 2008-10-15 2009-11-12 Vat Holding Ag Vakuumventil
US20110239854A1 (en) 2008-12-24 2011-10-06 Hamish William Hamilton Vaporisation system
US9615816B2 (en) * 2013-03-15 2017-04-11 Vidacare LLC Drivers and drive systems
CA2943806C (en) 2014-03-27 2022-05-31 Techtronic Power Tools Technology Limited Powered fastener driver and operating method thereof
US20170221085A1 (en) * 2016-02-01 2017-08-03 Mastercard International Incorporated Systems and methods for creating an options program using payment transactions performed within a geographic sector
CA2985043C (en) 2016-11-09 2023-03-14 Tti (Macao Commercial Offshore) Limited Cylinder assembly for gas spring fastener driver
US11110577B2 (en) 2017-11-16 2021-09-07 Milwaukee Electric Tool Corporation Pneumatic fastener driver
CN108723261B (zh) * 2018-07-10 2023-08-18 山东交通学院 双交叉扭丝网片联接机
DE102021101295A1 (de) 2021-01-21 2022-07-21 Hans Haug Universelle Antriebsvorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583496A (en) * 1969-02-19 1971-06-08 Behrens Friedrich Joh Compressed air-operated drive-in apparatus to drive-in fastening means such as nails, staples or the like
US3850079A (en) * 1970-07-30 1974-11-26 Behrens J Compressed air-operated drive-in apparatus
US3871566A (en) * 1972-07-25 1975-03-18 Behrens Friedrich Joh Fastener driver tools
US3815475A (en) * 1972-11-20 1974-06-11 Signode Corp Fastener driving tool with improved piston return
DE2946387C2 (de) * 1979-11-16 1986-04-10 Signode Corp., Glenview, Ill. Pneumatisches betätigbares Eintreibwerkzeug
DE3309226A1 (de) * 1983-03-15 1984-09-20 Hilti Ag, Schaan Druckluftnagler
DE3502977A1 (de) * 1985-01-30 1986-07-31 Robert Bosch Gmbh, 7000 Stuttgart Druckmittelbetriebenes schlaggeraet
GB2265106B (en) * 1992-03-18 1995-07-05 Max Co Ltd Air-pressure-operated impulsion mechanism

Also Published As

Publication number Publication date
JP2004520959A (ja) 2004-07-15
CN1290671C (zh) 2006-12-20
US6845896B2 (en) 2005-01-25
DE20110754U1 (de) 2001-10-18
TWI253970B (en) 2006-05-01
EP1399297A1 (de) 2004-03-24
KR100578517B1 (ko) 2006-05-12
ATE412493T1 (de) 2008-11-15
CN1464820A (zh) 2003-12-31
DE50212965D1 (de) 2008-12-11
WO2003002308A1 (de) 2003-01-09
KR20040014994A (ko) 2004-02-18
ES2314072T3 (es) 2009-03-16
US20030173393A1 (en) 2003-09-18

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