EP3323559A1 - Appareil de pose entraîné par volant d'inertie et son procédé de fonctionnement - Google Patents

Appareil de pose entraîné par volant d'inertie et son procédé de fonctionnement Download PDF

Info

Publication number
EP3323559A1
EP3323559A1 EP16199457.9A EP16199457A EP3323559A1 EP 3323559 A1 EP3323559 A1 EP 3323559A1 EP 16199457 A EP16199457 A EP 16199457A EP 3323559 A1 EP3323559 A1 EP 3323559A1
Authority
EP
European Patent Office
Prior art keywords
driving element
setting
coupling device
flywheel
opened
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Withdrawn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
EP16199457.9A
Other languages
German (de)
English (en)
Inventor
Dominik Schmidt
Raphael Thon
Tilo Dittrich
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
Priority to EP16199457.9A priority Critical patent/EP3323559A1/fr
Priority to PCT/EP2017/079031 priority patent/WO2018091402A1/fr
Priority to US16/461,568 priority patent/US20200061789A1/en
Priority to EP17797930.9A priority patent/EP3541577A1/fr
Publication of EP3323559A1 publication Critical patent/EP3323559A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • B25C1/008—Safety devices

Definitions

  • the invention relates to a flywheel-driven setting tool with a flywheel which is drivingly connected by a coupling device with a driving element to drive a fastener into a substrate during a setting process with the driving element, wherein the driving element is accelerated from a starting position in a setting direction.
  • the invention further relates to a method for operating such a setting device.
  • EP 2 716 409 A2 From the European publications EP 2 716 409 A2 .
  • EP 2 711 135 A2 and EP 2 433 752 A2 Various setting tools are known which generate a frictional connection between a piston and a flywheel during a setting process in order to transmit rotational energy of the flywheel to the piston.
  • the object of the invention is to enable a flywheel driven setting tool according to the preamble of claim 1 in a simple manner a uniform driving of fasteners into a substrate, in particular with the least possible user effort.
  • the object is in a flywheel-driven setting tool with a flywheel, which is drivingly connected by a coupling device with a driving element to drive a setting or fastener into a substrate during a setting process with the driving element, wherein the driving element of a Initial situation is accelerated in a setting direction, achieved in that the coupling device is associated with an actuator, by which the coupling device, for example, in a Kupplungsklemmung, can be opened.
  • the flywheel-driven setting tool is preferably a hand-held setting tool, which is also referred to as a setting tool.
  • the setting elements or fastening elements are, for example, nails or bolts which are driven into the ground with the aid of the setting device, which is also referred to as a setting tool.
  • the set energy is advantageously provided by an electric motor and transmitted via the flywheel to the driving element, which is also referred to as setting piston.
  • the flywheel is rotated by the electric motor.
  • the rotational energy of the flywheel is for a setting process on the driving element, in particular the setting piston, which is also abbreviated as piston, transmitted.
  • the driving element in particular of the piston
  • the fastener is driven into the ground.
  • the flywheel for example by means of a suitable coupling device, is initially connected in a frictional engagement with the drive-in element.
  • the driving element between the flywheel and a counter-roller can be arranged.
  • the coupling device After the driving element has driven a setting element or fastening element into the ground, the coupling device is opened to release the driving element of the flywheel. Then the driving element is returned to its initial position by a restoring device, for example a return spring device.
  • the coupling device may be self-energizing, for example as a helical-wheel clutch, in order to provide a high normal force on the driving element in the direction of the flywheel.
  • the return of the driving element by the return means usually works properly when the driving element is in a correct position or position after the setting process. An undesired faulty state of the driving element can lead to jamming of the coupling device, in particular in the case of clutch devices with self-boosting.
  • the coupling device is then wedged, so to speak, and the driving element does not return to its initial position.
  • the failure of the driving element which is also referred to as setting piston or piston, is also referred to as piston failure.
  • piston failure occurs in particular when driving setting elements or fasteners in a substrate made of wood. In wood applications occurs due to natural material inhomogeneities, for example in the form of knotholes, an increased piston failure rate or Kupplungsklemmungsrate what is undesirable.
  • the flywheel-driven setting tool with the actuator associated with the coupling device and / or the method for operating the flywheel-driven setting device advantageously makes it possible to automatically correct a malfunction of the driving element, in particular a piston malfunction or a coupling deadlock in the setting device. As a result, a uniform work with the least possible user effort can be ensured.
  • a preferred embodiment of the flywheel-driven setting tool is characterized in that the driving element is associated with a detection device with which a fault of the driving element is detected.
  • the detection of the defect of the driving element can be done in various ways. After the detection of the faulty state of the driving element, the jamming of the coupling device is eliminated by the actuator, in particular a self-locking of the coupling device is achieved.
  • a further preferred exemplary embodiment of the flywheel-driven setting device is characterized in that the detection device comprises a driving element limit switch, a sensor for detecting a movement, a path and / or a position of the driving element, a sensor for detecting a rotational angle and / or a rotational speed of the flywheel, and / or a sensor for detecting a state of the clutch device.
  • the drive-in limit switch detects or detects whether the drive-in element has arrived again in its starting position, in particular in its rearward position.
  • the path of the driving element and thus the position of the driving is detected and detected when the driving element after a certain period of time is not in its initial position, in particular its rear position or position arrived.
  • the sensor for detecting the angle of rotation and / or the speed of the flywheel can be detected or detected whether the flywheel has stopped.
  • a stalled flywheel indicates a fault of the driving element.
  • the sensor for detecting a state of the clutch device the operating state of the clutch can be detected or detected. If the driving element is not returned to its original position, the coupling device has generally jammed and is not in its starting position.
  • a preferred embodiment of the flywheel-driven setting tool is characterized in that the coupling device is coupled or combined with a pressing linkage in such a way that the coupling device is automatically opened when the setting device is deposited from the ground.
  • the coupling device is combined, for example, with a latch device.
  • the pawl device By means of the pawl device, an automatic release or opening of the coupling device can be effected in a simple manner with the pressing linkage when the setting device is set down from the ground.
  • the above object is alternatively or additionally achieved in that the coupling device is opened after the setting process, so that the driving element, for example by a restoring device, is returned to its original position.
  • the coupling device is automatically opened after the setting process, so that a user of the setting device must do nothing to eliminate an undesirable fault of the driving element.
  • a detection of a fault of the driving element can be omitted. For example, a reset is automatically carried out each time the setting device is set down from the ground, whereby the coupling device is completely released so that any self-locking that has occurred has been eliminated.
  • the forced or active opening of the coupling device is performed, for example, by a previously described actuator, which is associated with the coupling device.
  • a preferred embodiment of the method is characterized in that the coupling device is opened as soon as after a trigger operation or after actuation of a pressing switch a defined period of time has elapsed.
  • the coupling device is opened as soon as after a trigger operation or after actuation of a pressing switch a defined period of time has elapsed.
  • the previously described actuator is actuated, which cancels a jamming of the clutch device.
  • With the pressure switch is advantageously detected when the setting tool is pressed against the ground.
  • a further preferred embodiment of the method is characterized in that the coupling device is opened at a Kupplungsklemmung and / or at a fault of the driving element by a device-internal actuator.
  • the device-internal actuator comprises, for example, an actuator ram with which a jammed clutch device can be actively or forcibly opened or released.
  • the actuator ram cooperates, for example, with a wedge of the coupling device.
  • the wedge of the coupling device serves, for example, to press a counter-roller of the coupling device against the driving element in such a way that the driving element is in turn pressed against the flywheel in order, for example, to frictionally connect the flywheel to the driving element.
  • a further preferred embodiment of the method is characterized in that a movement, a path and / or a position of the driving element is / is monitored to detect a fault of the driving element.
  • the monitoring of the movement of the path and / or the position of the driving element is preferably carried out automatically with the aid of a previously described detection device. This provides the advantage that a user of the setting device can work undisturbed.
  • a further preferred embodiment of the method is characterized in that the coupling device is mechanically opened after a settling of the setting device from the ground.
  • the automatic opening of the coupling device is achieved, for example, by a pressing linkage that is coupled or combined with the coupling device.
  • the invention further relates to a coupling device, an actuator, a driving element, a detection device, a sensor, a driving-in limit switch and / or a pressing linkage for a previously described setting device.
  • the parts mentioned may be traded separately.
  • FIG. 1 and 2 is a flywheel driven setting tool 1 shown simplified with a housing 2.
  • the setting tool 1 is designed as a hand-operated setting tool with a handle 4 and a setting end 5.
  • the setting device or setting tool 1 is used for driving fasteners 24 in a (not shown) underground.
  • a desired number of fasteners 24 is stored in a magazine 6 at the setting end 5. From the magazine 6, the fastening elements 24, preferably automatically, provided individually in a bolt guide 8.
  • the energy required for driving in the fastening elements 24 is provided, for example, in the form of electrical energy in an accumulator 10 at the lower end of the handle 4.
  • the electrical energy stored in the accumulator 10 is converted into rotational energy by means of an electric motor (not shown), which is advantageously integrated in a flywheel 13.
  • the flywheel 13 is rotated about a flywheel rotation axis 15 in rotation, as indicated by an arrow 16 in the Figures 1 and 2 is indicated.
  • a clutch integrated in the setting device 1 which is embodied, for example, as a helical-wheel clutch, is closed such that the rotational energy stored in the flywheel 13 is used to trigger the setting process as translational energy to a driving-in element 20 is transmitted.
  • the driving element 20 represents a setting piston 22, which is shortened referred to as a piston.
  • the setting piston 22 and the driving element 20 is arranged between the flywheel 13 and a counter-roller 17.
  • the counter-roller 17 is rotatable about a counter-roller rotation axis 18, which is arranged parallel to the flywheel rotation axis 15.
  • the setting piston 22 has at its in the Figures 1 and 2 left end of a piston tip 23, with which the fastener 24 at the setting end 5 of the setting device 1 in the (not shown) underground can be driven.
  • the setting piston 22 and the driving element 20 is in the setting tool 1 by means of at least one piston guide 30 in the axial direction, ie in the Figures 1 and 2 to the left and to the right, moved back and forth.
  • the piston guide 30 comprises two guide rollers 31, 32.
  • the setting piston 22 with its piston tip 23 is moved toward the fastening element 24 with great acceleration by the piston guide 30.
  • the setting piston 22 by means of a return spring 34 back into his in the Figures 1 and 2 shown starting position moves.
  • the coupling device 44 in the setting tool 1 comprises a wedge 35, which is movable by a plunger 36 by the electromagnet 37 to the counter-roller 17 in FIG. 1 to press down against the driving element 20.
  • FIG. 1 the setting tool 1 is shown before a clutch release.
  • FIG. 1 shows the setting tool 1 immediately before a setting process.
  • the flywheel 13 was rotated, for example, by an integrated brushless electric motor and thus has an energy in the form of rotational energy, as indicated by the arrow 16 in FIG FIG. 1 is indicated.
  • the coupling device 44 is actuated via the electromagnet 37 so that the driving element is pressed by the counter-roller 17 down against the flywheel 13.
  • a frictional connection between the flywheel 13 and the driving-in element 20 is produced in a connecting region 40.
  • FIG. 3 is indicated by a cross 50 that the fastener 24, for example, due to an inhomogeneity in the ground, was not driven correctly into the ground. Due to the restoring device or restoring spring 34, a force indicated by an arrow 51 acts on the driving element 20.
  • the driving element 20 can, however, due to an undesired coupling clamping or coupling clamping, as can be seen in FIG. 3 sees, can not be reset correctly.
  • the coupling device 44 in FIG. 3 be opened by an actuator 55.
  • the actuator 55 comprises an actuator ram 56, which rests with a free end on a tip 55 of the wedge 35 of the coupling device 44 facing the actuator 55.
  • the coupling device 44 Upon movement of the Aktorst Schemeels 56 in FIG. 3 to the right, the coupling device 44 is actively or forcibly released by a corresponding movement of the wedge 35. After releasing the coupling device 44 (in FIG. 3 not shown), the driving element 20 and the setting piston 22 by the spring force of the return spring 34 in his in FIG. 1 shown starting position are reset. Then the setting device 1 is back in its defined initial state and is ready for a new settlement.
  • FIG. 4 is a similar setting tool 1 as in FIG. 3 shown.
  • a cross 60 is in FIG. 4 indicated that the fastener 24 is not or not correctly in the Subsoil was driven.
  • an arrow 61 is, as in FIG. 3 , A restoring force indicated, which is exerted by the return spring 34 on the driving element 20.
  • a fault of the driving element 20 is in FIG. 4 eliminated by a pressing rod 63 with a pressure bar 64, the jammed clutch device 44 automatically dissolves when discontinuing the setting device 1 from the ground.
  • FIG. 5 is a detail V out FIG. 4 shown enlarged.
  • a pawl 71 is provided at one in the FIGS. 5 and 6 right end of the pressing rod 64.
  • the pawl 71 represents a kind of barb, with which the pressing rod 64 engages in a corresponding recess 72 on the upper side of the wedge 35 of the coupling device 44.
  • the pawl 71 together with the guide body 74 and a compression spring 75 and a tension spring 76, a latch means 70.
  • the tension spring 76 By the tension spring 76, the in FIG. 5 right end of the pressing rod 64 held in contact with the guide body 74.
  • the compression spring 75 is in a movement of the pressing rod 74 in FIG. 5 to the right, as indicated by an arrow 77, compressed or compressed.
  • the pawl 71 hooks with the wedge 35 of the coupling device 44, as can be seen in FIG. 5 sees.
  • FIG. 6 is indicated by an arrow 78, that the previously compressed compression spring 75, a movement of the pressing rod 64 in FIG. 6 to the left as soon as the setting device with the pressing rod 63 is set off from the ground.
  • a further arrow 79 is indicated that in FIG. 6 moved to the left pressing rod 64 via the pawl 71, the wedge 35 to solve the coupling means 44 forcibly active or open.
  • the coupling device 44 is automatically opened.
  • the driving element always returns to its starting position or starting position and the setting tool is ready for the next setting cycle.
  • FIG. 7 is a similar setting tool 1 as in FIG. 3 shown with an actuator 55 which is associated with the coupling device 44.
  • an arrow 80 is indicated that the fastener 24 was not or not properly driven into the ground.
  • an arrow 81 a force is indicated, which is applied by the return spring 34 to the driving element 20.
  • the coupling device 44 is jammed, so that the driving element 20 has a fault or the setting piston 22 has a piston malfunction.
  • a device for piston malfunction detection is indicated with a controller.
  • the control of the detection device 90 is connected in terms of control with a limit switch 91 and with optional sensors 92 to 94.
  • the limit switch 91 detects or detects when the driving element 20 or the setting piston 22 is in its initial position or end position, as in FIG FIG. 1 is shown. With the sensor 92, a path of the driving-in element 20 can be detected during operation of the setting device 1.
  • a rotational speed or a rotational angle of the flywheel 13 can be detected.
  • a state, in particular a jamming, of the coupling device 44 can be detected or detected.
  • a symbol 95 is in FIG. 7 control moderately between the trigger 12 and the controller 90 is arranged.
  • the symbol 95 stands for a defined period of time ⁇ t.
  • the clutch device 44 can be actively or forcibly opened after the expiration of the time period or time interval .DELTA.t after a trigger operation or after activating / deactivating a contact pressure switch.
  • the opening of the coupling device 44 takes place, for example, by the actuator 55 with the actuator ram 56.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP16199457.9A 2016-11-18 2016-11-18 Appareil de pose entraîné par volant d'inertie et son procédé de fonctionnement Withdrawn EP3323559A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP16199457.9A EP3323559A1 (fr) 2016-11-18 2016-11-18 Appareil de pose entraîné par volant d'inertie et son procédé de fonctionnement
PCT/EP2017/079031 WO2018091402A1 (fr) 2016-11-18 2017-11-13 Pistolet de pose entraîné par volant d'inertie et procédé pour faire fonctionner un tel pistolet de pose
US16/461,568 US20200061789A1 (en) 2016-11-18 2017-11-13 Flywheel-driven setting tool and method for operating such a setting tool
EP17797930.9A EP3541577A1 (fr) 2016-11-18 2017-11-13 Pistolet de pose entraîné par volant d'inertie et procédé pour faire fonctionner un tel pistolet de pose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16199457.9A EP3323559A1 (fr) 2016-11-18 2016-11-18 Appareil de pose entraîné par volant d'inertie et son procédé de fonctionnement

Publications (1)

Publication Number Publication Date
EP3323559A1 true EP3323559A1 (fr) 2018-05-23

Family

ID=57348542

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16199457.9A Withdrawn EP3323559A1 (fr) 2016-11-18 2016-11-18 Appareil de pose entraîné par volant d'inertie et son procédé de fonctionnement
EP17797930.9A Withdrawn EP3541577A1 (fr) 2016-11-18 2017-11-13 Pistolet de pose entraîné par volant d'inertie et procédé pour faire fonctionner un tel pistolet de pose

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP17797930.9A Withdrawn EP3541577A1 (fr) 2016-11-18 2017-11-13 Pistolet de pose entraîné par volant d'inertie et procédé pour faire fonctionner un tel pistolet de pose

Country Status (3)

Country Link
US (1) US20200061789A1 (fr)
EP (2) EP3323559A1 (fr)
WO (1) WO2018091402A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021133781A3 (fr) * 2019-12-24 2021-10-21 Black & Decker Inc. Outil de fixation entraîné par volant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019081228A (ja) * 2017-10-31 2019-05-30 株式会社マキタ 打込み工具

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5069379A (en) * 1983-03-17 1991-12-03 Duo-Fast Corporation Fastener driving tool
US6971567B1 (en) * 2004-10-29 2005-12-06 Black & Decker Inc. Electronic control of a cordless fastening tool
EP2135710A1 (fr) * 2007-03-16 2009-12-23 Makita Corporation Outil d'entraînement
EP2433752A2 (fr) 2010-09-28 2012-03-28 Basso Industry Corp. Unité d'entraînement pour cloueuse électrique
EP2711135A2 (fr) 2012-09-20 2014-03-26 Black & Decker Inc. Cadre de levage magnétique
EP2716409A2 (fr) 2012-10-04 2014-04-09 Black & Decker Inc. Système d'activation doté d'un bras multi-angles et mécanisme de libération de blocage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5069379A (en) * 1983-03-17 1991-12-03 Duo-Fast Corporation Fastener driving tool
US6971567B1 (en) * 2004-10-29 2005-12-06 Black & Decker Inc. Electronic control of a cordless fastening tool
EP2135710A1 (fr) * 2007-03-16 2009-12-23 Makita Corporation Outil d'entraînement
EP2433752A2 (fr) 2010-09-28 2012-03-28 Basso Industry Corp. Unité d'entraînement pour cloueuse électrique
EP2711135A2 (fr) 2012-09-20 2014-03-26 Black & Decker Inc. Cadre de levage magnétique
EP2716409A2 (fr) 2012-10-04 2014-04-09 Black & Decker Inc. Système d'activation doté d'un bras multi-angles et mécanisme de libération de blocage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021133781A3 (fr) * 2019-12-24 2021-10-21 Black & Decker Inc. Outil de fixation entraîné par volant
EP4197700A1 (fr) * 2019-12-24 2023-06-21 Black & Decker Inc. Outil de fixation entraîné par volant d'inertie

Also Published As

Publication number Publication date
WO2018091402A1 (fr) 2018-05-24
EP3541577A1 (fr) 2019-09-25
US20200061789A1 (en) 2020-02-27

Similar Documents

Publication Publication Date Title
DE3021884C2 (fr)
DE69920282T2 (de) Verbinden von plattenförmigem material
DE69609537T2 (de) Schraubvorrichtung mit Kontaktarm-Verriegelungsmechanismus
EP2490856B1 (fr) Contrôle d'un processus d'assemblage à grande vitesse
DE102005000089A1 (de) Handgeführtes Eintreibgerät
EP2127816A2 (fr) Dispositif d'enfoncement manuel entraîné de manière électrique
WO2008138987A2 (fr) Procédé de fonctionnement d'un appareil de compression à main motorisé et appareil de compression à main
EP2140980A1 (fr) Dispositif d'enfoncement manuel
EP0338973A2 (fr) Elément de fixation avec rondelle de guidage
EP1944130A1 (fr) Dispositif d'enfoncement à main
EP3731997A1 (fr) Outil hydraulique pour un dispositif de traction et/ou de pressage
WO1999065629A1 (fr) Dispositif pour realiser un assemblage rive, et rivet correspondant
EP3541577A1 (fr) Pistolet de pose entraîné par volant d'inertie et procédé pour faire fonctionner un tel pistolet de pose
EP2985093B1 (fr) Appareil de pose de rivets aveugles et procédé de pose d'un rivet aveugle
DE102015007295B3 (de) Setzvorrichtung
DE102013208288A1 (de) Befestigungselementselektiver Anpressdetektor für ein Setzgerät zum Setzen des Befestigungselements
EP2888080B1 (fr) Outil à main
DE4405648A1 (de) Anordnung zur Prozeßüberwachung bei fluidisch betriebenen Eintreibegeräten
WO2014180774A1 (fr) Mécanisme de déclenchement permettant de poser un élément de fixation
DE2529873C3 (de) Kraftbetriebenes Eintreibwerkzeug für Befestigungsmittel
DE102013208300A1 (de) Hebelmechanismus zwischen Vorspanneinrichtung und Schwungrad zum Einwirken auf Stößel eines Setzgeräts
EP3697573B1 (fr) Clouseuse à air comprimé pourvue d'un actionneur de sécurité
EP2826598A1 (fr) Outil de presse avec dispositif limiteur d'une force de pressage mecanique
DE3504437C2 (fr)
EP2719482A1 (fr) Appareil de pose de rivets à pétales

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20181124