EP2070656A2 - Dispositif d'enfoncement manuel - Google Patents

Dispositif d'enfoncement manuel Download PDF

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Publication number
EP2070656A2
EP2070656A2 EP08105904A EP08105904A EP2070656A2 EP 2070656 A2 EP2070656 A2 EP 2070656A2 EP 08105904 A EP08105904 A EP 08105904A EP 08105904 A EP08105904 A EP 08105904A EP 2070656 A2 EP2070656 A2 EP 2070656A2
Authority
EP
European Patent Office
Prior art keywords
roller
drive
guide
transmission belt
tacker
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Withdrawn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
EP08105904A
Other languages
German (de)
English (en)
Other versions
EP2070656A3 (fr
Inventor
Ulrich Schiestl
Robert Spasov
Karl Franz
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 EP2070656A2 publication Critical patent/EP2070656A2/fr
Publication of EP2070656A3 publication Critical patent/EP2070656A3/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Withdrawn legal-status Critical Current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
    • B25C1/06—Hand-held nailing tools; Nail feeding devices operated by electric power

Definitions

  • the present invention relates to a hand-held tacker referred to in the preamble of claim 1.
  • Such hand-held tackers have a displaceably guided Eintreibstössel on the fasteners are driven into a ground.
  • a generic tacker is from the US 2007/0023472 A1 known, which has a by a drive spring acted upon to an outlet drive-in ram for driving a fastener.
  • a tensioning device for transferring the drive spring to a tensioned position comprises an electric motor and a belt-guided transmission belt. A rotary motion of the electric motor is transmitted to the drive spring via the driving ram and the transmission belt, which is thereby tensioned.
  • the object of the present invention is to improve the efficiency of a tacker of the aforementioned type.
  • the at least one roller is rotatably mounted on the bearing element via a roller bearing.
  • the at least one roller is rotatably mounted on the bearing element via a roller bearing.
  • At least one guide means for axially centrally guiding the Transsmissionsriemens provided on the roller, whereby a lateral displacement (ie, a displacement in the axial direction of the roller) and thus energy losses can be avoided by increased friction or uneven loading of the role.
  • the guide means are formed as arranged at both axial ends of the roller guide webs.
  • the guide means is designed as a radially encircling guide groove, in which engages a guide rib of the transmission belt.
  • the guide means is designed as a pompous circumferential contour of the roller.
  • FIGS. 1 to 4 illustrated tackle 10 has a housing 11 and disposed therein, generally designated 30 drive arrangement for a drive-in ram 13 which is guided in a guide 12 displaceable.
  • the drive-in ram 13 has a drive-in section 14 and a head section 15.
  • end of the guide 12 closes a coaxial with this extending bolt guide 17 to this.
  • a fastener magazine 61 is arranged in the fasteners 60 are stored.
  • the drive assembly 30 initially includes a drive spring element 31 which mediates via a total of 32 designated translation device on the head portion 15 of the drive tappet 13 engages.
  • the drive spring element 31 is designed here as a spiral spring.
  • the translation device 32 is in the embodiment according to the FIGS. 1 and 2 designed as a cable transmission.
  • the drive spring element 31 is mounted between a bearing element 36 fixed to the housing and a bearing element 35 designed as a spring output element.
  • On the ring-shaped bearing element 35 are on its side facing away from the drive spring element 31 side two opposing rollers 34 rotatably supported respectively via rolling bearings 40, as in particular from Fig. 3 is apparent.
  • the bearings 40 are z. B. formed as a ball bearing with balls as rolling elements 49.
  • a rope or belt-shaped transmission belt 33 which is fixed with its first and second free end 42, 43 on the support element 36, is guided over these rollers 34 around the bearing element 35.
  • Guiding means 46 formed as guide webs are respectively arranged at the axial ends of the rollers 34 and ensure that the transmission belt 33 is guided centrally on the rollers 34 (see in particular FIG Fig. 4 ). At the same time, the transmission belt 33 is guided around the free end of the head section 15 of the drive rod 13.
  • a generally designated 50 locking device having a pawl 51 which in a blocking position 54 (see Fig. 1 ) engages a locking surface 53 on a projection 58 of the drive-in ram 13 and holds it against the force of the drive spring element 31.
  • the pawl 51 is mounted on a servomotor 52 and about this in a Fig. 2 apparent release position 55 can be transferred, as will be described below.
  • the servomotor 52 is connected via an electrical first control line 56 to a control unit 23.
  • the tacker 10 further includes a handle 20 on which a trigger switch 19 is arranged to trigger a driving operation with the tacker 10.
  • a handle 20 on which a trigger switch 19 is arranged to trigger a driving operation with the tacker 10.
  • the handle 20 is also still a total designated 21 power supply arranged, via which the tacker 10 is supplied with electrical energy.
  • the power supply 21 includes at least one accumulator.
  • the power supply 21 is connected via electrical supply lines 24 both to the control unit 23 and to the trigger switch 19.
  • the control unit 23 is further connected via a switch line 57 to the trigger switch 19.
  • a switching means 29 is arranged, which is electrically connected via a switching means 28 to the control unit 23.
  • the switching means 29 sends an electrical signal to the control unit 23 as soon as the tacker 10 is pressed against a workpiece U, as shown Fig. 2 can be seen, thus ensuring that the tacker 10 can be triggered only when it has been properly pressed against a workpiece U.
  • This tensioning device 70 comprises a motor 71 via which a drive roller 72 can be driven.
  • the motor 71 is electrically connected to the control unit 23 via a second control line 74 and can be put into operation via this, z. B. when the driving ram 13 is in its lying in the driving direction 27 end position or when the tacker is lifted off the ground again.
  • the motor 71 has an output means 75, such as a driven wheel, which can be coupled to the drive roller 72.
  • the drive roller 72 is rotatably mounted on a longitudinally adjustable actuating arm 78 of a solenoid 76 designed as a solenoid.
  • the adjusting means 76 is connected via an actuating line 77 to the control unit 23. In operation, the drive roller 72 rotates in the direction of the arrow 73 indicated by dashed lines.
  • the control unit 23 first ensures that the drive-in ram 13 is in its off Fig. 1 apparent starting position 22 is located. If this is not the case, then the drive roller 72 is moved up by the adjusting means 76 to the output means 75, which has already been rotated via the motor 71, and is engaged therewith. At the same time, the drive roller 72 engages the drive-in ram 13 so that it is offset in the direction of the drive arrangement 30 via the drive roller 72 rotating in the direction of the arrow 73. In this case, the drive spring element 31 of the drive assembly 30 is tensioned.
  • the control unit 23 is first set in Setzrschaft via the switching means 29. If the trigger switch 19 is then actuated by an operator, then the blocking device 50 is displaced into its release position 55 via the control unit 23, wherein the pawl 51 is lifted off the blocking surface 53 on the drive ram 13 via the positioning motor 52.
  • the pawl 51 may be spring-loaded in the direction of the driving ram 13.
  • the drive-in ram 13 is then moved via the drive spring element 31 of the drive arrangement 30 in the drive-in direction 27, wherein a fastening element 60 is driven into the substrate U.
  • the expansion path (arrow 45) of the drive spring element 31 is translated via the translation device 32 such that the acceleration path (arrow 44) of the drive tappet 13 is longer than the expansion path (arrow 45) of the drive spring element 31.
  • the transmission ratio of the translation device 32 is in the embodiment 1: 2.
  • the tensioning device 70 is activated via the control unit 23 when the tacker 10 is lifted off the workpiece U again.
  • the switching means 29 provides a signal to the control unit 23.
  • About the tensioning device 70 of the driving ram 13 is driven in the manner already described against the drive spring element 31 of the drive assembly 30 and the drive spring member 31 while tensioned again until the pawl 51 again in its blocking position 54th can occur on the locking surface 53 on the drive tappet 13.
  • FIG. 5 illustrated tackling device differs essentially from the previously described, that instead of the two guide webs as guide means on the rollers 34 each have a guide groove 47a is provided as a guide means into which a arranged on the transmission belt 33 guide rib 47b engages the transmission belt 33 axially centered to lead to the rollers 34.
  • FIG. 6 illustrated tackle device differs essentially from the previously described, that in each case a pompous peripheral contour 48 is provided on the rollers 34 as a guide means over which the transmission belt 33 is guided axially centrally on the rollers 34.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP08105904A 2007-12-14 2008-12-01 Dispositif d'enfoncement manuel Withdrawn EP2070656A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007060425A DE102007060425A1 (de) 2007-12-14 2007-12-14 Handgeführtes Eintreibgerät

Publications (2)

Publication Number Publication Date
EP2070656A2 true EP2070656A2 (fr) 2009-06-17
EP2070656A3 EP2070656A3 (fr) 2010-06-23

Family

ID=40418383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08105904A Withdrawn EP2070656A3 (fr) 2007-12-14 2008-12-01 Dispositif d'enfoncement manuel

Country Status (5)

Country Link
US (1) US7870988B2 (fr)
EP (1) EP2070656A3 (fr)
JP (1) JP2009142983A (fr)
CN (1) CN101456177B (fr)
DE (1) DE102007060425A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010030098A1 (de) * 2010-06-15 2011-12-15 Hilti Aktiengesellschaft Eintreibvorrichtung
DE102010030057A1 (de) * 2010-06-15 2011-12-15 Hilti Aktiengesellschaft Elektrisch betätigbares Bolzensetzgerät
DE102011007703A1 (de) * 2011-04-19 2012-10-25 Hilti Aktiengesellschaft Eintreibgerät
DE102011089720A1 (de) * 2011-12-23 2013-06-27 Hilti Aktiengesellschaft Eintreibvorrichtung
US11229995B2 (en) 2012-05-31 2022-01-25 Black Decker Inc. Fastening tool nail stop
US9827658B2 (en) 2012-05-31 2017-11-28 Black & Decker Inc. Power tool having latched pusher assembly
US10434634B2 (en) 2013-10-09 2019-10-08 Black & Decker, Inc. Nailer driver blade stop
US12502756B2 (en) 2013-10-09 2025-12-23 Black & Decker Inc. High inertia driver system
US20170361443A1 (en) 2016-06-20 2017-12-21 Black & Decker Inc. Cylindrical Integrated Valve Assembly
WO2021133781A2 (fr) 2019-12-24 2021-07-01 Black & Decker Inc. Outil de fixation entraîné par volant

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070023472A1 (en) 2005-07-13 2007-02-01 Hilti Aktiengesellschaft Hand-held drive-in power tool

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1767485A (en) * 1930-06-24 Power hammer
US1845617A (en) * 1929-05-02 1932-02-16 Latham Machinery Co Stapling machine
US3305156A (en) * 1965-02-01 1967-02-21 Khan Joseph Anthony Fastener machines
US3589588A (en) * 1969-07-14 1971-06-29 George O Vasku Impact tool
US3847322A (en) * 1973-09-10 1974-11-12 H Smith Power driven hammer
US3924692A (en) * 1974-02-06 1975-12-09 Illinois Tool Works Fastener driving tool
US3982678A (en) * 1975-02-14 1976-09-28 Olson Jerome A Nail driving apparatus
US4103747A (en) * 1977-01-14 1978-08-01 Finney James L Buffer spring for an impact tool
US4215808A (en) * 1978-12-22 1980-08-05 Sollberger Roger W Portable electric fastener driving apparatus
US5069379A (en) * 1983-03-17 1991-12-03 Duo-Fast Corporation Fastener driving tool
US4724992A (en) * 1985-11-07 1988-02-16 Olympic Company, Ltd. Electric tacker
JPH0596611U (ja) * 1992-05-29 1993-12-27 凸版印刷株式会社 プーリ
JP3141111B2 (ja) * 1993-05-08 2001-03-05 石川島播磨重工業株式会社 ベルトプーリ
CN2310654Y (zh) * 1997-11-03 1999-03-17 汤科儿 无后座力电钉枪
JP2004169871A (ja) * 2002-11-22 2004-06-17 Gates Unitta Asia Co 伝動ベルト用プーリ
JP2005003067A (ja) * 2003-06-11 2005-01-06 Itsuo Kitahata 伝動装置
JP2005351425A (ja) * 2004-06-11 2005-12-22 Bando Chem Ind Ltd 歯付プーリ及びそれを備えたベルト式伝動装置
JP2006029436A (ja) * 2004-07-15 2006-02-02 Koyo Seiko Co Ltd 動力伝達装置
WO2006124498A2 (fr) * 2005-05-12 2006-11-23 Stanley Fastening Systems, L.P. Dispositif de commande d'un element de fixation
JP4664240B2 (ja) * 2006-06-12 2011-04-06 株式会社マキタ 打込み作業工具
DE102007000007A1 (de) * 2007-01-11 2008-08-21 Hilti Aktiengesellschaft Handgeführtes Eintreibgerät

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070023472A1 (en) 2005-07-13 2007-02-01 Hilti Aktiengesellschaft Hand-held drive-in power tool

Also Published As

Publication number Publication date
DE102007060425A1 (de) 2009-06-18
US20090152321A1 (en) 2009-06-18
CN101456177B (zh) 2012-08-08
JP2009142983A (ja) 2009-07-02
EP2070656A3 (fr) 2010-06-23
US7870988B2 (en) 2011-01-18
CN101456177A (zh) 2009-06-17

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