EP3666471A1 - Outil de fixation - Google Patents

Outil de fixation Download PDF

Info

Publication number
EP3666471A1
EP3666471A1 EP18211960.2A EP18211960A EP3666471A1 EP 3666471 A1 EP3666471 A1 EP 3666471A1 EP 18211960 A EP18211960 A EP 18211960A EP 3666471 A1 EP3666471 A1 EP 3666471A1
Authority
EP
European Patent Office
Prior art keywords
fastening tool
support structure
workpiece
tool according
housing
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Withdrawn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
EP18211960.2A
Other languages
German (de)
English (en)
Inventor
Thomas Foser
Stefan Ziegler
Patrick SCHREPFER
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 EP18211960.2A priority Critical patent/EP3666471A1/fr
Priority to TW108139265A priority patent/TW202022200A/zh
Priority to PCT/EP2019/082249 priority patent/WO2020120106A1/fr
Publication of EP3666471A1 publication Critical patent/EP3666471A1/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Withdrawn legal-status Critical Current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
    • B25C7/00—Accessories for nailing or stapling tools, e.g. supports

Definitions

  • a fastening tool for driving fastening elements in a driving direction into a workpiece, comprising a housing and a press-on element having a press-on face, wherein the press-on element is displaceable with respect to the housing against the driving direction when the fastening tool is pressed against the workpiece in the driving direction. Also described herein are associated parts and methods of use thereof.
  • One such application is joining two elements by driving a fastening element into one or both of the elements, thereby using a fastening tool as mentioned above.
  • the fastening tool is pressed against one of the elements, hereinafter referred to as a workpiece, then a driving mechanism is triggered which may drive a driving element onto the fastening element to drive the fastening element into the workpiece.
  • a driving mechanism is triggered which may drive a driving element onto the fastening element to drive the fastening element into the workpiece.
  • the workpiece may move back and thus require support from behind.
  • the fastening tool may provide such a support.
  • driving mechanisms are known to be used in fastening tools, comprising for example: combustion of explosive powder or fluid/gaseous combustibles, compressed air, spring drives, flywheels, electromagnetic drives, screwing, and combinations thereof. Any of those driving mechanisms are known to be used in portable hand-held fastening tools.
  • One constraint with workpiece support relates to dimensional size. If a fastening tool provides for support of the workpiece, it may be an object to accommodate workpieces of different sizes within the same tool. It should also be appreciated that there are applications when the workpieces have different cross-sectional area, different shape, or different grades of material.
  • a fastening tool provides for support of the workpiece, it may employ some support structure arranged in front of a tool nose. Such a support structure could reduce accessibility of an area of the tool nose and make handling the fastening tool more difficult. It should also be appreciated that there are applications when the tool nose needs to be removed from the remaining fastening tool, such as replacing the driving element or other maintenance or repair work.
  • a fastening tool for driving fastening elements in a driving direction into a workpiece comprising a housing and a press-on element having a press-on face, wherein the press-on element is displaceable with respect to the housing against the driving direction when the fastening tool is pressed against the workpiece in the driving direction, the fastening tool further comprising a support structure mounted to the housing and extending in the driving direction along the press-on element, wherein the support structure is displaceable with respect to the housing between a closed position, an open position and a release position, and wherein the support structure is removable from the housing from the release position.
  • the support structure protrudes in the driving direction behind the press-on face.
  • the support structure comprises a support element for clasping the workpiece.
  • the support element comprises a support face supporting the workpiece against the driving direction during driving a fastening element into the workpiece.
  • the support structure comprises a support protrusion for engaging the workpiece, or a depression in the workpiece, wherein the support face is arranged on the support protrusion.
  • the support structure is displaceable in the driving direction with respect to the press-on element.
  • the fastening tool comprises a control element for controlling movement of the support structure with respect to the housing.
  • the control element has a first position in which the control element locates the support structure in the closed position.
  • the control element has a second position in which the control element locates the support structure in the open position.
  • the control element has a release position in which the control element releases the support structure to be removed from the housing. Even more preferred, the release position is identical to the open position.
  • the control element comprises a lever hinged to the housing.
  • the fastening tool comprises a compulsory guide for moving the support structure between the closed position and the open position by movement of the control element.
  • the compulsory guide comprises a control arm and at least one guide element engaging the control arm such that movement of the control arm causes movement of the guide element and/or vice versa.
  • the control element comprises the control arm, and the support structure comprises the guide element.
  • the support structure comprises the control arm, and the guide element comprises the guide element.
  • the control element comprises a grip.
  • the fastening tool comprises a locking element which has a locking position and a clearance position, wherein the locking element prevents the control element from moving into the release position if the locking element is in the locking position, and wherein the locking element allows movement of the control element into the release position if the locking element is in the clearance position.
  • the locking element engages the stop element in the locking position, wherein the locking element passes by the stop element in the clearance position.
  • the locking element is arranged on the control element, and the stop element is arranged on the support structure.
  • the locking element is arranged on the support structure, and the stop element is arranged on the control element.
  • the engagement element comprises the stop element.
  • the locking element is manually movable between the locking position and the clearance position.
  • the fastening tool comprises a driver and a driving device for driving the driver onto a fastening element to drive the fastening element into the workpiece.
  • the press-on element is removable from the remaining fastening tool for replacing the driver or a component of the driving device.
  • the press-on element is displaceable up to a pressed-on position, wherein the press-on element releases a driving-in operation of the fastening tool if the press-on element is in the pressed-on position, and wherein the press-on element prevents a driving-in operation of the fastening tool if the press-on element is out of the pressed-on position.
  • the press-on element comprises a guide channel for guiding a fastening element when the fastening element is driven into the workpiece.
  • Figs. 1 , 2 , 3 , 4 , 5 , 6 and 7 show a fastening tool 1 for driving fastening elements 2 along a setting axis 14 in a driving direction 3 into a workpiece 4.
  • the driving elements 2 are formed as nails.
  • the driving elements are formed as e.g. bolts, pins, clips, cranks or screws.
  • the fastening tool 1 comprises a schematically shown driver 5 which is formed as e.g. a setting piston or screwdriver bit.
  • the fastening tool 1 comprises a housing 6 and, received in the housing 6, a schematically shown driving device 7 for driving the driver 5 onto a fastening element 2 to drive the fastening element 2 into the workpiece 4.
  • the driving device 7 comprises e.g. a gas- or powder-actuated combustion drive, an air-pressure drive, or a spring-, flywheel or electrodynamic driven electric drive having, in particular, an electric motor and an electric battery.
  • the fastening tool 1 comprises a press-on element 8 having a press-on face 11 and which is displaceable against the driving direction 3 with respect to the housing 6.
  • the press-on element 8 is displaceable up to a pressed-on position shown in Fig. 1 . If the press-on element 8 is in the pressed-on position, it releases a driving-in operation of the fastening tool 1. If the press-on element 8 is out of the pressed-on position, the press-on element 8 prevents a driving-in operation of the fastening tool 1.
  • the press-on element 8 comprises a guide channel 9 in which a fastening element 2 is guided when driven into the workpiece 4.
  • the fastening tool comprises a separate guide channel extending along the press-on element in the driving direction.
  • the workpiece 4 is formed as a coupler sleeve for coupling elongated elements such as tubes or rods, e.g. reinforcing bars for concrete.
  • the workpiece 4 and/or the elements to be connected and/or the fastening elements are made of a metal, such as iron, or alloy, such as steel.
  • the fastening elements 2 are driven tangentially into a gap between an inner face of the workpiece 4 and an outer face of the elongated elements, such that the elongated elements are tightly connected to the workpiece 4.
  • the fastening elements 2 are pre-mounted to the workpiece 4, e.g. inserted in prefabricated holes, such as bores.
  • the fastening elements are fed one-by-one or collated to the guide channel.
  • the fastening tool may comprise a magazine opening out into the guide channel.
  • the fastening tool 1 comprises a support structure 12 mounted to the housing 6 and protruding in the driving direction 3 behind the press-on face 11.
  • the support structure 12 comprises a support element 10 for clasping the workpiece 4.
  • the support element 10 comprises a support protrusion 13 for engaging one of two depressions 15 in the workpiece 4.
  • a support face 16 supporting the workpiece 4 against the driving direction 3 during driving a fastening element 2 into the workpiece 4 is arranged on the support protrusion 13. A safe pressing the fastening tool 1 against the workpiece 4 is thus ensured.
  • the support structure 12 is also displaceable in the driving direction 3 with respect to the press-on element 8.
  • the support structure 12 is displaceable in the driving direction 3 with respect to the housing 6 between a closed position, an open position and a release position.
  • the support structure comprises carriage 20, the housing 6 comprises a track 21 which is formed e.g. as a groove, and the carriage 20 slides in the driving direction 3 in the track 21.
  • a distance between the support face 16 and the press-on face 11 is small in order to hold the workpiece 4 between the support element 10 and the press-on element 8 and press the press-on element 8 onto the workpiece 4, as shown in Fig. 1 .
  • the open position of the support structure 12 Figs.
  • a distance between the support face 16 and the press-on face 11 is large ensuring capability of moving the workpiece 4 into and out of a space between the support element 10 and the press-on element 8.
  • the support structure 12 is displaced in the driving direction 3 from the closed position to the open position, and against the driving direction from the open position to the closed position. From the release position of the support structure 12 ( Figs. 6 and 7 ), which in the present embodiment is at the same position as the open position, the support structure 12 is displaced even further in the driving direction 3 in order to remove the support structure 12 from the housing 6.
  • the fastening tool 1 comprises a control element 17 for controlling movement of the support structure 12 with respect to the housing 6.
  • the control element 17 comprises two levers 18 hinged to the housing 6, and a grip 19.
  • the control element 17 has a first position ( Figs. 2 and 3 ) in which the control element 17 locates the support structure 12 in the closed position, a second position ( Figs. 4 and 5 ) in which the control element 17 locates the support structure 12 in the open position, and a release position ( Figs. 6 and 7 ) in which the control element 17 releases the support structure 12 to be removed from the housing 6.
  • the fastening tool comprises a compulsory guide 22.
  • the compulsory guide 22 comprises a control arm 23, e.g. comprised by the lever 18, and two guide elements 24, e.g. comprised by the support structure 12.
  • the guide elements 24 engage the control arm 23 such that movement of the control arm 23 causes movement of the guide elements 24.
  • the support structure comprises the control arm
  • the guide element comprises the guide element.
  • the fastening tool 1 further comprises a locking element 25 which has a locking position and a clearance position.
  • the locking element 25 comprises a latch 26 for latching in the locking position and/or the clearance position.
  • the locking element 25 engages a stop element which, in the present embodiment, is arranged on the support structure and e.g. comprised by one of the guide elements.
  • the locking element 25 thus prevents the control element 17 from moving into the release position if the locking element 25 is in the locking position.
  • the locking element is arranged on the support structure, and the stop element is arranged on the control element.
  • the clearance position Fig.
  • the locking element 25 may pass by the stop element, thus allowing movement of the control element 17 into the release position. If the locking element 25 is manually movable between the locking position and the clearance position, a user is able to remove, without the need of a tool, the support structure 12 and then the press-on element 8 from the remaining fastening tool 1, e.g. for replacing the driver 5 or a component of the driving device 7.
  • a user In order to drive a fastening element 2 into the workpiece 4, a user approaches the workpiece 4 with the fastening tool 1, wherein the support structure 12 is in its open position, such that the support element 10 clasps the workpiece 4 and the support protrusion is inserted into the depression 15 of the workpiece 4.
  • the user then pulls the grip 19 of the control element 17 against the driving direction such that the support structure 12 is moved against the driving direction 3 with respect to the housing 6, thus reducing a distance between the support face 16 and the press-on element 8 which then is put over a fastening element 2.
  • the press-on element 8 abuts the workpiece 4 and is moved against the driving direction 3 with respect to the housing 6.
  • the press-on element 8 When the press-on element 8 is in the pressed-on position, it releases a driving-in operation of the fastening tool 1.
  • the fastening tool 1 is now ready to drive the fastening element 2, which is now arranged within the guide channel 9, into the workpiece 4.
  • the user may push the control element 17 in the driving direction 3 back to its open position.
  • the locking element 25 is turned clock-wise in Fig. 5 to its clearance position.
  • the control element 17 is then pushed further forward in the driving direction 3 to its release position. Since the guide elements 24 do not engage the control arms 18 anymore, the support structure 12 can be further displaced in the driving direction 3 with respect to the housing 6 until it is completely removed from the housing 6.
  • it is attached on the housing 6 such that the carriage 20 slides rearward against the driving direction 3 in the track 21 until the control arms 18 abut on the guide elements 24 as shown in Fig. 6 .
  • the locking element 25 is turned to its locking position and the control element 17 is pulled back to its open position.
  • the fastening tool 1 is now ready to be pressed on a workpiece 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Automatic Assembly (AREA)
EP18211960.2A 2018-12-12 2018-12-12 Outil de fixation Withdrawn EP3666471A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18211960.2A EP3666471A1 (fr) 2018-12-12 2018-12-12 Outil de fixation
TW108139265A TW202022200A (zh) 2018-12-12 2019-10-30 緊固工具
PCT/EP2019/082249 WO2020120106A1 (fr) 2018-12-12 2019-11-22 Outil de fixation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18211960.2A EP3666471A1 (fr) 2018-12-12 2018-12-12 Outil de fixation

Publications (1)

Publication Number Publication Date
EP3666471A1 true EP3666471A1 (fr) 2020-06-17

Family

ID=64665033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18211960.2A Withdrawn EP3666471A1 (fr) 2018-12-12 2018-12-12 Outil de fixation

Country Status (3)

Country Link
EP (1) EP3666471A1 (fr)
TW (1) TW202022200A (fr)
WO (1) WO2020120106A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3831537A1 (fr) * 2019-12-04 2021-06-09 Hilti Aktiengesellschaft Outil de fixation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090095789A1 (en) * 2007-10-15 2009-04-16 Anatoly Gosis Moveable fastening tool holding bracket
EP2708338A2 (fr) * 2012-09-18 2014-03-19 Stanley Fastening Systems L.P. Appareil de sertissage de clou de palette et procédés
US20170297188A1 (en) * 2016-04-15 2017-10-19 Everwin Pneumatic Corp. Clamping device for a nail gun
WO2018048315A1 (fr) 2016-09-12 2018-03-15 Holmes Solutions Limited Partnership Dispositif de couplage, pièces associées et leur procédé d'utilisation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090095789A1 (en) * 2007-10-15 2009-04-16 Anatoly Gosis Moveable fastening tool holding bracket
EP2708338A2 (fr) * 2012-09-18 2014-03-19 Stanley Fastening Systems L.P. Appareil de sertissage de clou de palette et procédés
US20170297188A1 (en) * 2016-04-15 2017-10-19 Everwin Pneumatic Corp. Clamping device for a nail gun
WO2018048315A1 (fr) 2016-09-12 2018-03-15 Holmes Solutions Limited Partnership Dispositif de couplage, pièces associées et leur procédé d'utilisation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3831537A1 (fr) * 2019-12-04 2021-06-09 Hilti Aktiengesellschaft Outil de fixation
WO2021110475A1 (fr) * 2019-12-04 2021-06-10 Hilti Aktiengesellschaft Outil de fixation

Also Published As

Publication number Publication date
TW202022200A (zh) 2020-06-16
WO2020120106A1 (fr) 2020-06-18

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