EP2650087A2 - Appareil d'enfoncement - Google Patents

Appareil d'enfoncement Download PDF

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Publication number
EP2650087A2
EP2650087A2 EP13162840.6A EP13162840A EP2650087A2 EP 2650087 A2 EP2650087 A2 EP 2650087A2 EP 13162840 A EP13162840 A EP 13162840A EP 2650087 A2 EP2650087 A2 EP 2650087A2
Authority
EP
European Patent Office
Prior art keywords
piston
driving
tacker according
exhaust port
driving energy
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.)
Withdrawn
Application number
EP13162840.6A
Other languages
German (de)
English (en)
Other versions
EP2650087A3 (fr
Inventor
Moritz Gauger
Tilo Dittrich
Simon Beauvais
Rolf Erhardt
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 EP2650087A2 publication Critical patent/EP2650087A2/fr
Publication of EP2650087A3 publication Critical patent/EP2650087A3/fr
Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to a tacker, in particular a hand-held tacker, according to the preamble of claim 1.
  • DE 40 10 517 A1 describes a gas powered tacker with a combustion chamber, a piston guided in a cylinder, and a manually adjustable exhaust port in the combustion chamber to reduce drive-in energy.
  • the exhaust gas opening is set to a partially or maximally opened position, part of the combustion gases escapes through the exhaust gas opening immediately after the beginning of a pressure buildup after ignition of a gas mixture.
  • a high velocity of the piston is desired. Apart from a high starting speed, it may then be desirable to provide a maximum or reduced driving energy depending on the required penetration depth (nail length, etc.) and / or material quality of the workpiece (wood, brick, cement, concrete, etc.).
  • the gas pressure profile when selecting a reduced driving energy differs from the maximum pressure profile in that it substantially corresponds to the maximum pressure profile in the first path section and drops later than the maximum pressure curve, ie in the further course of the piston movement.
  • the size of the first path portion of the piston can be selected according to requirements. Preferably, it may be at least 10%, more preferably at least 20% of the total piston travel.
  • the reduction of the gas pressure may be through one or more exhaust ports.
  • the measures provided according to the preferred embodiments can generally be applied to exactly one and / or several and / or all exhaust ports.
  • the at least one exhaust gas opening is arranged in the region of the cylinder.
  • the piston releases the exhaust opening only after the first path section.
  • the exhaust gas opening arranged in the region of the cylinder can be selectably changed between two states of the opening, for example open / closed. Such a selection can also be done, for example, by a manual mechanical adjustment.
  • the exhaust gas opening may also be arranged in the region of the combustion chamber. This may be the case, in particular, when a defined delayed release of the exhaust gas opening takes place.
  • exhaust gas openings can also be provided both in the region of the cylinder and in the region of the combustion chamber. There may also be a different type of control of such multiple exhaust ports.
  • the release of an exhaust gas opening in the sense of the invention can be triggered by a defined time delay and / or by a spatial position, in particular of the piston.
  • the exhaust gas outlet is formed controllable closable.
  • the selection of the drive-in energy can generally be connected to an electronic control unit of the device.
  • this makes it possible that a release of the at least one exhaust port to reduce the driving energy after a defined time delay after the ignition of the fuel-air mixture takes place.
  • This can be realized for example by an electrical switching valve.
  • the time delay is predetermined by the controller.
  • the time delay is calculated by the controller, for example based on a desired driving energy, wherein the time delay is particularly greater, the greater the desired driving energy, so that the less the drive-in energy is to be reduced, the longer the maximum pressure curve is maintained ,
  • an effective cross section of the at least one exhaust gas opening can be variably changed, in particular over a plurality of discrete stages or continuously.
  • This also includes embodiments in which, for example, there are a plurality of exhaust gas openings, each of which is individually closable.
  • an adjustment of the driving-in energy can take place by means of a mechanical actuating unit.
  • an adjustment of the driving energy can also be done by means of an electronic control unit.
  • a sensor element can determine an operating condition for the preferably automatic adjustment of the driving-in energy.
  • Such a sensor member may ideally detect the nature of the material of the workpiece. However, it can also be a sensor member which determines, for example, the type of charged nails of the tacker, for example with respect to a length of the nails or other condition.
  • an adjustment of the driving energy via a display unit, preferably an electronic display unit, controllable, whereby incorrect settings is prevented.
  • the line 3 connects a metering device 4 with the combustion chamber 2, wherein the metering device 4 in turn is connected to the fuel tank 5 arranged in or on the housing 1.
  • the fuel tank can be designed in particular as a replaceable cartridge.
  • the tacker additionally comprises an electronic control 6 with an electric accumulator 6a as an energy store.
  • a spark plug 7 is driven in the combustion chamber 2 by means of a line 7a.
  • the metering device 4 is actuated, provided that it has electrical valves or other electrically controlled components.
  • a magazine 8 for storing fasteners, such as nails, arranged.
  • a pressing member 9 can be pressed against a workpiece to release a triggering of the tacker.
  • a metering of the fuel by means of the metering device 4 can take place, for example, depending on the air pressure (altitude) or other criteria.
  • air pressure altitude
  • a possible influence on a driving-in energy to a certain extent can be carried out as required in addition or independently of the influencing described below.
  • a first exhaust gas opening 17 is provided in a front region, by means of which a driving-in energy of the piston 10 is selectably changeable.
  • a second exhaust port 18 is arranged in a rear region relative to the piston path. The second exhaust port 18 serves primarily to eject or purge the combustion gases after the drive has taken place.
  • the first exhaust gas opening 17 is arranged a little behind the combustion chamber 2, which is delimited by the piston in an initial position of the piston 10 (the present illustration is purely schematic and not to scale).
  • Such an opening may be manually selectable.
  • a simple setting of "on” (reduced drive-in energy) or "to” (maximum drive-in energy) may be present. It can also be an adjustable change of the Cross section act, for example by means of an adjustable valve in a design according to DE 40 10 517 A1 ,
  • Fig. 2 shows a second embodiment of the invention in which both exhaust ports 17, 18 are selectably closed by means of controllable actuators 19.
  • the first exhaust port 17 can thereby automated according to the manual case after Fig. 1 be operated.
  • an exact timing of the exhaust gas opening may also be present, for example an opening which is delayed with respect to the ignition time.
  • the exhaust port 17 may be arranged in principle in the region of the combustion chamber 2.
  • Fig. 3 shows a further embodiment in which only one controllable exhaust port 17 is present.
  • This is schematically provided with a rotatably mounted closure flap 21, which is held in a closed position via a hook-shaped latch 22.
  • the latch is controllably movable via an actuator, so that the flap 21 can be released as needed to reduce the driving energy.
  • the flap 21 may, for example, be spring loaded in the closing direction, so that it returns to the closed position at a sufficiently low gas pressure. Subsequently, it acts as a check valve, so that the cooling residual gases provide a negative pressure in the combustion chamber, by means of which the piston 10 is returned to the starting position. This is generally the preferred principle of piston return. Alternatively or additionally, however, a return spring can also be provided.
  • Fig. 4 to Fig. 6 show a further embodiment of the invention, according to the Fig. 3 is similar. Unlike the flap after Fig. 3 here is a continuously variable valve spool 23 above the exhaust port 17. By adjusting an effective cross section of the exhaust port is changed, so that the driving energy exactly is adjustable.
  • the slider 23 is controllably linearly displaceable via an actuator, not shown.
  • Fig. 4 to Fig. 6 show various positions of the valve spool 23, namely closed, semi-open and open.
  • Fig. 7 In the modification to Fig. 7 is in addition to the valve spool Fig. 4 to Fig. 6 a flap 24 above the exhaust port through which a check valve is formed. This allows a simple reset of the piston 10 as in the previous example, without a correspondingly fast provision of the valve spool 24 must be made.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP13162840.6A 2012-04-13 2013-04-09 Appareil d'enfoncement Withdrawn EP2650087A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012206108A DE102012206108A1 (de) 2012-04-13 2012-04-13 Eintreibgerät

Publications (2)

Publication Number Publication Date
EP2650087A2 true EP2650087A2 (fr) 2013-10-16
EP2650087A3 EP2650087A3 (fr) 2015-07-22

Family

ID=48050534

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13162840.6A Withdrawn EP2650087A3 (fr) 2012-04-13 2013-04-09 Appareil d'enfoncement

Country Status (5)

Country Link
US (1) US20130270319A1 (fr)
EP (1) EP2650087A3 (fr)
CN (1) CN103375275A (fr)
DE (1) DE102012206108A1 (fr)
TW (1) TW201404554A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3141347A1 (fr) * 2015-09-14 2017-03-15 HILTI Aktiengesellschaft Appareil d'enfoncement entraine par combustible dote d'une articulation de soupape

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010061973A1 (de) * 2010-11-25 2012-05-31 Hilti Aktiengesellschaft Eintreibgerät
TWI455801B (zh) * 2013-09-05 2014-10-11 Basso Ind Corp 瓦斯釘槍的擊發計數裝置
EP2886258A1 (fr) * 2013-12-18 2015-06-24 HILTI Aktiengesellschaft Appareil d'enfoncement
EP2886260A1 (fr) * 2013-12-19 2015-06-24 HILTI Aktiengesellschaft Appareil d'enfoncement
EP2923800A1 (fr) * 2014-03-28 2015-09-30 HILTI Aktiengesellschaft Cloueur à poudre
CN208289826U (zh) * 2015-02-06 2018-12-28 米沃奇电动工具公司 以气弹簧为动力的紧固件驱动器
CN113084757B (zh) * 2015-04-30 2025-01-10 工机控股株式会社 打入机
US10363651B2 (en) * 2015-09-28 2019-07-30 Caterpillar Inc. Hammer assembly
TWM526944U (zh) * 2016-03-18 2016-08-11 Chung-Yi Lee 可調整擊釘力量的火藥擊釘器
TWI781941B (zh) * 2016-07-29 2022-11-01 日商工機控股股份有限公司 釘打機
TWI751176B (zh) * 2016-08-31 2022-01-01 日商工機控股股份有限公司 打釘機、壓力調節器和打釘單元
CN108058137B (zh) 2016-11-09 2022-09-09 创科无线普通合伙 用于气弹簧紧固件驱动器的气缸组件
CA3030703C (fr) * 2018-01-19 2022-04-12 Max Co., Ltd. Outil d'entrainement
EP3524391B1 (fr) * 2018-01-19 2022-05-04 Max Co., Ltd. Outil d'enfoncement de type combustion à gaz
EP3524390B1 (fr) * 2018-01-19 2022-03-30 Max Co., Ltd. Outil d'enfoncement
US11213934B2 (en) 2018-07-18 2022-01-04 Milwaukee Electric Tool Corporation Impulse driver
WO2022067235A1 (fr) 2020-09-28 2022-03-31 Milwaukee Electric Tool Corporation Dispositif d'entraînement à impulsions
US12325112B2 (en) 2020-09-28 2025-06-10 Milwaukee Electric Tool Corporation Power tool with impulse assembly including a valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4010517A1 (de) 1990-04-02 1991-10-10 Hilti Ag Gasbetriebenes arbeitsgeraet

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US3964551A (en) * 1974-09-20 1976-06-22 Reed Tool Company Pneumatic impact drilling tool
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JP2537968Y2 (ja) * 1992-12-10 1997-06-04 株式会社空研 インパクトレンチにおけるレギュレータの構造
GB2313643A (en) * 1996-05-31 1997-12-03 Inst Gornogo Dela Sibirskogo O Apparatus for impact action
US5816342A (en) * 1997-01-27 1998-10-06 Columbia Gas Distribution Companies Small diameter impact boring tool
DE50109817D1 (de) * 2001-07-19 2006-06-22 Hilti Ag Bolzensetzgerät mit Setztiefenregelung
SE525316C2 (sv) * 2003-01-23 2005-02-01 Atlas Copco Tools Ab Pneumatiskt motordrivet verktyg med axiellt eller radiellt utblås
US7404449B2 (en) * 2003-05-12 2008-07-29 Bermingham Construction Limited Pile driving control apparatus and pile driving system
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JP2008018513A (ja) * 2006-07-14 2008-01-31 Makita Corp 燃焼式作業工具
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JP5429010B2 (ja) * 2010-04-02 2014-02-26 マックス株式会社 ガス燃焼式締結機
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CN202144062U (zh) * 2011-07-02 2012-02-15 温州市协力射钉紧固器材厂 一种内燃式射钉器
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Publication number Priority date Publication date Assignee Title
DE4010517A1 (de) 1990-04-02 1991-10-10 Hilti Ag Gasbetriebenes arbeitsgeraet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3141347A1 (fr) * 2015-09-14 2017-03-15 HILTI Aktiengesellschaft Appareil d'enfoncement entraine par combustible dote d'une articulation de soupape
WO2017045967A1 (fr) * 2015-09-14 2017-03-23 Hilti Aktiengesellschaft Cloueuse fonctionnant au moyen d'un gaz combustible et dotée d'un élément soupape

Also Published As

Publication number Publication date
EP2650087A3 (fr) 2015-07-22
US20130270319A1 (en) 2013-10-17
CN103375275A (zh) 2013-10-30
DE102012206108A1 (de) 2013-10-17
TW201404554A (zh) 2014-02-01

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