EP2604389A2 - Outil de fixation - Google Patents

Outil de fixation Download PDF

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Publication number
EP2604389A2
EP2604389A2 EP12190727.3A EP12190727A EP2604389A2 EP 2604389 A2 EP2604389 A2 EP 2604389A2 EP 12190727 A EP12190727 A EP 12190727A EP 2604389 A2 EP2604389 A2 EP 2604389A2
Authority
EP
European Patent Office
Prior art keywords
fibers
force
force deflector
protective layer
deflector
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Withdrawn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
EP12190727.3A
Other languages
German (de)
English (en)
Other versions
EP2604389A3 (fr
Inventor
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 EP2604389A2 publication Critical patent/EP2604389A2/fr
Publication of EP2604389A3 publication Critical patent/EP2604389A3/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Withdrawn legal-status Critical Current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
    • 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 application relates to a device for deflecting forces and a device for driving fasteners with a force deflection device.
  • Such force deflection devices are usually designed as bands, ropes or chains, which extend for the deflection of forces in a non-constant direction and are moved along their extension direction. Here, both internal and external friction occurs, so that the force deflection devices are exposed to wear.
  • a device for deflecting forces comprises a force deflector for deflecting the direction of a force acting on the force deflector, the force deflector having a protective layer.
  • the protective layer serves to increase the robustness and / or wear resistance of the force diverter and thus of the force deflection device.
  • the protective layer comprises a plastic.
  • the plastic preferably comprises PVC and / or an acrylic-based plastic.
  • the plastic preferably comprises in particular a synthetic elastomer, particularly preferably latex, in particular natural latex or synthetic latex, a thermoplastic elastomer, a polyurethane, neoprene, a vulcanized elastomer and / or a silicone, in particular a one-component or a multi-component silicone.
  • the protective layer comprises a lubricant. According to a further preferred embodiment, the protective layer covers a surface of the force deflector.
  • a thickness of the protective layer is between 0.2 mm and 0.5 mm. According to a likewise preferred embodiment, a thickness of the protective layer is between 0.1 mm and 0.2 mm. According to a further preferred embodiment, a thickness of the protective layer is between 0.01 mm and 0.1 mm.
  • the force deflector comprises a protective layer matrix interspersed with reinforcing fibers. More preferably, the reinforcing fibers comprise a strand.
  • the force deflector comprises a fabric or scrim of woven or jelly fibers, in particular plastic fibers.
  • the fabric or scrim comprises reinforcing fibers which differ from the woven or gelled fibers.
  • the reinforcing fibers comprise glass fibers, carbon fibers, polyamide fibers, in particular aramid fibers, metal fibers, in particular steel fibers, ceramic fibers, basalt fibers, boron fibers, polyethylene fibers, high-performance polyethylene fibers, polymer fibers, crystalline fibers, liquid crystalline fibers, polyester fibers, asbestos fibers and / or natural fibers, in particular hemp fibers.
  • the force deflector comprises a band, a rope or a chain.
  • the force deflection device is inserted into a device for driving a fastening element into a substrate, wherein the driving device has a mechanical energy storage for storing mechanical energy, a movable between a starting position and a setting energy transfer element for transmitting energy from the mechanical energy storage the fastener, and a power transmission device for transmitting a force from the energy storage device to the energy transfer element.
  • the power transmission device and in particular the force deflector for transmitting a force from the energy storage device to the energy transmission element is provided.
  • the force deflector is arranged to be movable relative to the mechanical energy store and / or relative to the energy transfer element.
  • the energy transmission element is suitable for transmitting energy from the mechanical energy store to the fastening element.
  • the device comprises an energy transmission device for transmitting energy from an energy source to the mechanical energy store.
  • the energy for a driving operation in the mechanical energy storage is temporarily stored to be delivered abruptly to the fastener.
  • the energy transmission device is preferably suitable for conveying the energy transmission element from the setting position into the starting position.
  • the energy source is a particular electrical energy storage, more preferably a battery or a rechargeable battery.
  • the device preferably has the energy source.
  • the energy transmission device comprises a power transmission device for transmitting a force from the energy store to the energy transmission element and / or for transmitting a force from the energy transmission device to the mechanical energy store.
  • the mechanical energy storage is intended to store potential energy.
  • the mechanical energy store comprises a spring, in particular a helical spring.
  • the power transmission device comprises a force deflector for deflecting the direction of a force transmitted by the power transmission device.
  • the force deflector is preferably arranged to be movable relative to the mechanical energy store and / or relative to the energy transfer element.
  • the power transmission device in particular the force deflector, in particular the belt is attached to the energy transmission device.
  • Fig. 1 shows a driving-in device 10 for driving a fastener, such as a nail or bolt, into a ground in a side view.
  • the driving-in device 10 has an energy transmission element (not shown) for transmitting energy to the fastening element and a housing 20, in which the energy transmission element and a likewise not shown drive device for conveying the energy transmission element are accommodated.
  • the driving-in device 10 furthermore has a handle 30, a magazine 40 and a bridge 50 connecting the handle 30 to the magazine 40.
  • the magazine is not removable. Attached to the bridge 50 are a scaffold hook 60 for suspending the driving-in device 10 on a scaffold or the like, and an electrical energy store designed as a battery 590.
  • a trigger 34 and designed as a hand switch 35 Grifflagler are arranged.
  • the driving-in device 10 has a guide channel 700 for guiding the fastening element and a pressing device 750 for detecting a distance of the driving-in device 10 from a substrate, not shown. An alignment of the driving device perpendicular to a substrate is supported by an alignment aid 45.
  • Fig. 2 shows the driving device 10 with the housing 20 open.
  • a drive device 70 for carrying a hidden in the drawing energy transfer element is added.
  • the drive device 70 comprises an electric motor, not shown, for converting electrical energy from the battery 590 into rotational energy, a transmission 400 comprising a torque transfer device for transmitting a torque of the electric motor to a trained as a spindle drive motion converter 300, a roller train 260 comprehensive power transmission device for transmitting a force from the motion converter to a mechanical energy accumulator designed as a spring 200 and for transmitting a force from the spring to the energy transmission element.
  • Fig. 3 shows the spindle drive 300 with a spindle 310 and a spindle nut 320 in a partial longitudinal section.
  • the spindle nut has an internal thread 328, which is in engagement with an external thread 312 of the spindle.
  • the spindle nut 320 in addition to an internal threaded sleeve 370 an outer clamping sleeve 375, wherein a between the threaded sleeve 370 and the clamping sleeve 375 circumferential gap forms a passage 322.
  • the tape 270 is passed through the passage 322 and fixed to a locking element 324 by the tape 270 engages around the locking element 324 and again fed back through the passage 322, where a tape end 275 is sewn to the tape 270.
  • the locking element as well as the bushing 322 circumferentially formed as a locking ring.
  • the band is preferably formed as a textile band and comprises a plurality of individual fibers.
  • the force deflector is formed as a rope, which preferably comprises a plurality of individual fibers.
  • the force deflector is designed as a chain of individual chain links.
  • the locking element 324 together with the formed belt loop 278 has a greater width than the bushing 322.
  • the locking element 324 with the belt loop 278 can not slip through the bushing 322 therethrough so that the tape 270 is attached to the spindle nut 320.
  • the tape 270 By attaching the tape 270 to the spindle nut 320 ensures that a clamping force of the mechanical energy storage, not shown, which is designed in particular as a spring, is deflected by the belt 270 and transmitted directly to the spindle nut 320.
  • the clamping force is transmitted from the spindle nut 320 via the spindle 310 and a tie rod 360 to a coupling device, not shown, which holds a likewise not shown, engaged piston.
  • the tie rod has a spindle mandrel 365, which on the one hand firmly connected to the spindle 310 and on the other hand is rotatably mounted in a spindle bearing 315.
  • Fig. 4 shows a designed as a pulley 260 power transmission device for transmitting a force to a spring 200 in an oblique view.
  • the spring 200 has a front spring element 210 with a front spring end 230 and a rear one Spring element 220 with a rear spring end 240.
  • the reel train 260 has a force deflector formed by a belt 270 and a front roller holder 281 with front rollers 291 and a rear roller holder 282 with rear rollers 292.
  • the roller holders 281, 282 are preferably made of a particular fiber-reinforced plastic.
  • the roller holders 281, 282 have guide rails 285 for guiding the roller holders 281, 282 in a housing, not shown, of the driving device, in particular in grooves of the housing.
  • the front spring end 230 of the front spring member 210 is received in the front roller holder 281 while the rear spring end 240 of the rear spring member 220 is received in the rear roller holder.
  • the spring elements 210, 220 are supported on support rings 250 on their mutually facing sides. Due to the symmetrical arrangement of the spring elements 210, 220, repulsive forces of the spring elements 210, 220 cancel, so that the ease of operation of the driving-in device is improved.
  • the band 270 engages the spindle nut 320 and a piston 100 and is placed over the rollers 291, 292 so that the pulley train 260 is formed.
  • the piston 100 is engaged in a coupling device, not shown.
  • the reel draw causes a translation of a relative speed of the spring ends 230, 240 to each other at a speed of the piston 100 by a factor of two.
  • two identical springs of the pulley thus causes a translation of the speed of each of the spring ends 230, 240 in a speed of the piston 100 by a factor of four.
  • a spindle drive 300 with a spindle wheel 440, a spindle 310 and a spindle nut arranged inside the rear spring element 220 is shown, wherein a driving element 330 fastened to the spindle nut can be seen.
  • Fig. 5 shows the pulley 260 in a tensioned state of the spring 200.
  • the spindle nut 320 is now at the coupling end of the spindle 310 and pulls the tape 270 into the rear spring element.
  • the roller holders 281, 282 are moved toward one another and the spring elements 210, 220 are tensioned.
  • the piston 100 is held by the coupling device 150 against the spring force of the spring elements 210, 220.
  • Fig. 6 shows a spring 200 in an oblique view.
  • the spring 200 is designed as a helical spring and made of steel.
  • One end of the spring 200 is received in a roller holder 280, the other end of the spring 200 is fixed to a support ring 250.
  • the roll holder 280 has rollers 290 which protrude from the roll holder 280 on the side of the roll holder 280 facing away from the spring 200.
  • the rollers are rotatably supported about mutually parallel axes and allow a belt, not shown, to be drawn into the interior of the spring 200.
  • Fig. 7 shows a longitudinal section of the driving-in device 10, after using the piston 100, a fastener to the front, that is, in the drawing to the left, was driven into a ground.
  • the piston is in its setting position.
  • the front spring element 210 and the rear spring element 220 are in the relaxed state, in which they still have some residual stress.
  • the front roller holder 281 is in its forwardmost position in operation and the rear roller holder 282 is in its rearmost position in operation.
  • the spindle nut 320 is located at the front end of the spindle 310. Due to the possibly relaxed to a residual stress spring elements 210, 220, the band 270 is substantially free of load.
  • the controller 500 causes a return operation in which the piston 100 is conveyed to its original position.
  • the motor rotates via the gear 400, the spindle 310 in a first rotational direction, so that the rotationally secured spindle nut 320 is moved to the rear.
  • the return rods engage in the vomholzapfen of the piston 100 and thus promote the piston 100 also to the rear.
  • the piston 100 takes along the tape 270, whereby the spring elements 210, 220 are not tensioned, since the spindle nut 320 also takes the tape 270 backwards and releases about the rear rollers 292 as much tape length as the piston between the front rollers 291 moves.
  • the tape 270 thus remains substantially free of load during the return operation.
  • Fig. 8 shows a longitudinal section of the driving-in device 10 after the return operation.
  • the piston 100 is in its starting position and is engaged with its coupling plug 110 in the coupling device 150.
  • the front spring element 210 and the rear spring element 220 are still in their respective relaxed state, the front roller holder 281 is in its foremost position and the rear roller holder 282 is in its rearmost position.
  • the spindle nut 320 is located at the rear end of the spindle 310. Due to the relaxed spring elements 210, 220, the band 270 is still substantially free of load.
  • the control device 500 causes a tensioning process in which the spring elements 210, 220 are tensioned.
  • the motor rotates via the gear 400, the spindle 310 in a direction opposite to the first direction of rotation second rotational direction, so that the rotationally secured spindle nut 320 is moved forward.
  • the coupling device 150 holds the coupling male part 110 of the piston 100 fixed, so that the length of the strip, which is drawn in by the spindle nut 320 between the rear rollers 292, can not be released from the piston.
  • the roller holders 281, 282 are therefore moved toward each other and the spring elements 210, 220 are tensioned.
  • Fig. 9 shows a longitudinal section of the driving device 10 after the clamping operation.
  • the piston 100 is still in its initial position and is engaged with its coupling plug 110 in the coupling device 150.
  • the front spring member 210 and the rear spring member 220 are cocked, the front roller holder 281 is in its rearmost position, and the rear roller holder 282 is in its foremost position.
  • the spindle nut 320 is located at the front end of the spindle 310.
  • the band 270 deflects the clamping force of the spring elements 210, 220 on the rollers 291, 292 and transmits the clamping force to the piston 100, which is held against the clamping force of the coupling device 150.
  • the drive-in device is now ready for a drive-in process. As soon as a user pulls the trigger 34, the coupling device 150 releases the piston 100, which then transfers the clamping energy of the spring elements 210, 220 to a fastening element and drives the fastening element into the ground.
  • the force deflector designed in particular as a band has a preferably elastic protective layer.
  • the protective layer optionally supports and / or cushions a tissue structure of the force deflector, reducing its internal friction during deformation and avoids under certain circumstances a buckling of individual fibers under pressure load of Kraftumlenkers.
  • the protective layer may avoid penetration of dust or similar particles into the tissue structure and thus protects the force deflector against environmental influences or accelerated aging.
  • individual fibers and / or fiber bundles are provided with the protective layer.
  • the entire force deflector is provided with the protective layer.
  • the lubricant preferably comprises an oil, a grease, a solid lubricant such as graphite or MoS 2 , Teflon, wax or the like.
  • the protective layer is applied to the force deflector by means of an injection molding process or introduced into the force deflector. It is possible to locally and selectively provide the force deflector with the protective layer, in particular made of plastic.
  • the protective layer is applied to the force deflector by means of a two-component cold-casting process or introduced into the force deflector.
  • the process temperature is preferably about 80 ° C. It is also possible to locally and selectively provide the force deflector with the protective layer, in particular of polyurethane.
  • the protective layer is applied to the force deflector by means of an extrusion process or introduced into the force deflector. It is possible to provide the force deflector continuously with the protective layer, in particular of plastic.
  • the protective layer is applied mechanically, in particular as a protective jacket, and / or thermally, in particular as a heat-shrinkable tube, to the force deflector or introduced into the force deflector. Under certain circumstances, the protective layer is applied to the force deflector while avoiding air inclusions.
  • the protective layer is applied by means of a cold dipping method, in particular in an aqueous solution, to the force deflector or introduced into the force deflector. It is possible to perform the process by machine or manually, each continuously or discontinuously.
  • the protective layer is applied by vulcanization, by a spray method, by laminating films in particular under the action of temperature, by gluing a film or by applying a particular elastic adhesive to the force deflector or introduced into the force deflector.
  • the invention has been described with reference to a force deflector for a device for driving a fastener into a substrate. It should be noted, however, that the force deflector according to the invention can also be used for other purposes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Connection Of Plates (AREA)
EP12190727.3A 2011-12-16 2012-10-31 Outil de fixation Withdrawn EP2604389A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011088778A DE102011088778A1 (de) 2011-12-16 2011-12-16 Eintreibvorrichtung

Publications (2)

Publication Number Publication Date
EP2604389A2 true EP2604389A2 (fr) 2013-06-19
EP2604389A3 EP2604389A3 (fr) 2014-04-30

Family

ID=47143633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12190727.3A Withdrawn EP2604389A3 (fr) 2011-12-16 2012-10-31 Outil de fixation

Country Status (7)

Country Link
US (1) US20130153621A1 (fr)
EP (1) EP2604389A3 (fr)
JP (1) JP2013136145A (fr)
CN (1) CN103158108A (fr)
CA (1) CA2796860A1 (fr)
DE (1) DE102011088778A1 (fr)
TW (1) TW201332721A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3670090A1 (fr) * 2018-12-18 2020-06-24 Hilti Aktiengesellschaft Dispositif, appareil d'entraînement et procédé
US10814465B2 (en) 2016-03-22 2020-10-27 Stanley Black & Decker, Inc. Safety device for tackers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109382796B (zh) * 2017-08-14 2024-06-25 北京大风时代科技有限责任公司 打钉设备
JP2022173701A (ja) * 2021-05-10 2022-11-22 マックス株式会社 打込工具
JP2022173699A (ja) * 2021-05-10 2022-11-22 マックス株式会社 打込工具

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Publication number Priority date Publication date Assignee Title
US1915660A (en) * 1932-01-26 1933-06-27 Int Latex Corp Driving belt and method for making same
JPS61140640A (ja) * 1984-12-12 1986-06-27 Toray Ind Inc 歯付ベルト
US20040144559A1 (en) * 2003-01-27 2004-07-29 Matthew Menze Flexible braided electrical cable bundle
DE602004013050T2 (de) * 2004-02-23 2009-07-09 Dayco Europe S.R.L. Zahnriemen
JP4861106B2 (ja) * 2006-09-21 2012-01-25 株式会社マキタ 電動打ち込み機
JP2008238290A (ja) * 2007-03-26 2008-10-09 Hitachi Koki Co Ltd 打込機
DE102008031803B4 (de) * 2008-06-27 2011-06-30 Carstensen, Uwe, 20459 Schutzanordnung einer Antriebskette sowie Verwendung dafür
DE102008033267A1 (de) * 2008-07-15 2010-01-21 Contitech Antriebssysteme Gmbh Ölbeständiger Antriebsriemen, insbesondere Zahnriemen
DE102010030118A1 (de) * 2010-06-15 2011-12-15 Hilti Aktiengesellschaft Eintreibvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10814465B2 (en) 2016-03-22 2020-10-27 Stanley Black & Decker, Inc. Safety device for tackers
US11633839B2 (en) 2016-03-22 2023-04-25 Stanley Black & Decker, Inc. Safety device for tackers
EP3670090A1 (fr) * 2018-12-18 2020-06-24 Hilti Aktiengesellschaft Dispositif, appareil d'entraînement et procédé
WO2020126367A1 (fr) * 2018-12-18 2020-06-25 Hilti Aktiengesellschaft Dispositif, appareil d'enfoncement et procédé
US11926029B2 (en) 2018-12-18 2024-03-12 Hilti Aktiengesellschaft Apparatus, driving-in device and method

Also Published As

Publication number Publication date
CA2796860A1 (fr) 2013-06-16
EP2604389A3 (fr) 2014-04-30
JP2013136145A (ja) 2013-07-11
CN103158108A (zh) 2013-06-19
TW201332721A (zh) 2013-08-16
DE102011088778A1 (de) 2013-06-20
US20130153621A1 (en) 2013-06-20

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