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EP3656507A1 - Appareil d'insertion - Google Patents

Appareil d'insertion Download PDF

Info

Publication number
EP3656507A1
EP3656507A1 EP18208300.6A EP18208300A EP3656507A1 EP 3656507 A1 EP3656507 A1 EP 3656507A1 EP 18208300 A EP18208300 A EP 18208300A EP 3656507 A1 EP3656507 A1 EP 3656507A1
Authority
EP
European Patent Office
Prior art keywords
driving
face
housing
pressing
deflecting element
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Withdrawn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
EP18208300.6A
Other languages
German (de)
English (en)
Inventor
Joerg Stamm
Jann Schraner
Tomas Koula
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 EP18208300.6A priority Critical patent/EP3656507A1/fr
Publication of EP3656507A1 publication Critical patent/EP3656507A1/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Withdrawn legal-status Critical Current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
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • 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

  • the invention relates to a driving tool, in particular a hand-held driving tool.
  • Driving-in devices usually comprise a housing, a drive accommodated in the housing for driving a fastening element into a subsurface, and a pressure sensor that can be displaced relative to the housing in a driving-in direction for pressing against the subsurface.
  • a driving tool comprising a housing, a drive accommodated in the housing for driving a fastening element into a substrate, a pressure sensor which can be displaced relative to the housing in a driving direction for pressing against the substrate, and a deflecting element which in the Closes driving-in direction with an end projecting over the housing, which is inclined at an obtuse angle ⁇ relative to the driving-in direction.
  • the inclination of the end face relative to the driving-in direction allows the driving-in device to slide off on a part protruding from the ground or the device to be fastened, so that the risk of getting caught on it is reduced. Under certain circumstances it will protruding part pressed during a pressing of the driving tool to the ground so that the accessibility of the driving point is additionally improved by the driving tool.
  • the drive preferably comprises a piston which is moved towards the fastening element in order to drive the fastening element into the ground.
  • the piston in turn is accelerated, for example, by burning a solid, liquid or gaseous fuel, by means of compressed air, by a tensioned spring, by a flywheel or by means of electrodynamic forces.
  • the pressure sensor is preferably used to release a driving-in process only when the driving-in device is pressed against a surface.
  • An advantageous embodiment is characterized in that a projection of the end face on a drive-in plane oriented perpendicular to the driving direction extends at least from an inner radius r i to an outer radius r a , the end face in the entire area between the inner radius r i and the outer radius r a is inclined relative to the driving direction by an obtuse angle ⁇ greater than 125 °, preferably greater than 135 °, particularly preferably greater than 140 °.
  • the inner radius r i is advantageously less than 40 mm, preferably less than 30 mm, particularly preferably less than 25 mm.
  • the outer radius r a is also advantageously greater than 40 mm, preferably greater than 50 mm, particularly preferably greater than 60 mm.
  • An advantageous embodiment is characterized in that a projection of the end face extends on a drive-in axis oriented parallel to the driving direction at least from a front end s i to a rear end s a , the end face in the entire area between the front end s i and the rear end s a is inclined relative to the driving direction by an obtuse angle ⁇ greater than 125 °, preferably greater than 135 °, particularly preferably greater than 140 °. This makes it easier for the driving tool to slide off a surface or the device to be fastened.
  • the pressure sensor advantageously has a pressure end which is pressed onto the substrate, the front end, when the driving tool is pressed on, a distance s v projected onto the driving axis from the pressing end of less than 100 mm, preferably less than 80 mm, particularly preferably less than 70 mm, having.
  • the rear end In a pressed-on state of the driving tool, the rear end likewise advantageously has a distance s h, projected onto the driving axis, from the pressing end of greater than 100 mm, preferably greater than 120 mm, particularly preferably greater than 130 mm.
  • the deflector element is made of a harder material than the housing, at least on the end face.
  • the deflector element preferably consists entirely of the harder material.
  • the deflecting element likewise advantageously consists, at least on the end face, preferably completely, of a material which comprises a metal and / or an alloy, preferably steel.
  • the deflecting element is firmly connected to the housing.
  • the housing preferably comprises two housing parts, between which the deflecting element is arranged, particularly preferably clamped.
  • An alternative embodiment is characterized in that the deflecting element is firmly connected to the pressure sensor.
  • An advantageous embodiment is characterized by a magazine for fastening elements, the deflecting element projecting over the magazine in the driving direction.
  • An advantageous embodiment is characterized in that the end face extends in a direction rotating with respect to the driving direction over a rotation angle of at least 90 °, preferably at least 150 °, particularly preferably at least 180 °.
  • end face comprises a preferably flat end face.
  • the end face likewise advantageously comprises a preferably straight end edge.
  • a hand-held driving tool 15 is shown schematically.
  • the driving tool 15 has a housing 1 with a grip area 1a and a grip bridge 1b and a magazine 2 adjoining the grip bridge 1b for receiving nails (not shown) or other fasteners that can be driven in.
  • a drive for driving the fastening elements into an underground, not shown, is accommodated, the drive comprising a combustion chamber 3 and a piston 3a which is fixedly connected to a driving plunger 3b.
  • a fan 4 driven by an electric motor 4a is arranged in the combustion chamber 3 in order to improve the mixing of air and fuel and the exchange of exhaust gas and fresh air.
  • the fuel is stored in a tank 5 in a lower area of the housing 1.
  • the fuel is liquefied petroleum gas, for example propane or other suitable gases.
  • the tank 5 is therefore a pressure accumulator. It can be designed as a refillable, stationary and permanently arranged tank in the housing 1, as an exchangeable cartridge or the like.
  • the tank 5 is connected via a line section to a valve member 6, with the valve member 6 dosing the liquid gas for inflow into the combustion chamber 5.
  • the tank 5 for storing liquefied gas as fuel is accommodated in the handle bridge 1b, the valve member 6, from which an injection line 7 leads to the combustion chamber 3, adjoins the tank 5.
  • the injection line 7 opens into the combustion chamber 3 in the vicinity of a passive evaporation sheet 8.
  • an electrical energy store 9 in the form of an accumulator or a battery is provided in the handle bridge 1b.
  • the electrical energy store 9 supplies control electronics 10, via which the valve member 6 is electrically controlled on the one hand and, on the other hand, a spark plug 11 arranged in the combustion chamber 3 is supplied electrically for generating an ignition spark.
  • the control electronics 10 is also connected to an actuation switch 12 arranged on the grip area 1 a, so that an operator controls the process of fuel injection and one of the spark plugs 11 generated ignition sparks in the combustion chamber 3 can trigger to drive a fastener into the ground.
  • a pressing of the driving tool 15 against the ground is carried out by means of a Fig. 1 Pressure sensor, not shown, recognized by the control electronics, which thereby releases a defined amount of liquid gas from the tank 5 into the line 7 and injects it into the combustion chamber 3.
  • the liquid gas strikes the evaporation plate 8, whereby the fuel jet is divided and atomized.
  • combustion of the atomized and / or evaporated liquid gas is then triggered, so that strongly expanding fuel gases are produced which accelerate the piston 3a in a driving-in direction 13 onto the substrate.
  • the driving plunger 3b finally drives the fastening element into the ground. In the meantime, the fastening element is guided in a guide element 14.
  • the driving tool 20 comprises a housing 21 and a pressure sensor 22, which can be displaced relative to the housing 21 in a driving direction 23, for pressing against a substrate, not shown.
  • the pressure sensor 22 has a pressure end 40 for contacting the surface.
  • the pressure sensor 22 also serves as a guide element for fastening elements, not shown, which are successively fed from a magazine 24 to a drive-in channel 22b within the pressure sensor 22, in order to be driven by a drive, not shown, which is accommodated in the housing 21, along a drive-direction 23 Driving axis 38 to be driven into the ground.
  • the drive comprises, for example, a piston driven by internal combustion, compressed air, spring, flywheel or electrodynamically.
  • the pressure sensor 22 is connected to the drive, for example, by means of a linkage and / or sensor (not shown) in such a way that a driving-in process is only possible when the driving-in device 20 is pressed against a surface.
  • the driving tool 20 also has a deflecting element 30 which closes in the driving direction 23 with a first end face 31 and a second end face 32 and also has a guide element 39 for guiding the contact pressure sensor 22.
  • the first end face 31 and the second end face 32 protrude in the driving-in direction 23 via the housing 21 and the magazine 24.
  • the first end face 31 has a first end face 33 which is inclined to the driving-in direction 23 by an obtuse angle ⁇ 1 .
  • the Angle ⁇ 1 is approximately 140 ° in a first section 35 of the first end face 33, approximately 170 ° in a second section 36 and approximately 135 ° in a third section 37.
  • the second end face 32 has a second end face 34 which is inclined to the driving-in direction 23 by an obtuse angle ⁇ 2 .
  • the second end face 34 is inclined relative to the first end face 33 in an opposite direction and is preferably symmetrical with respect to the driving direction 23 to the first end face 33.
  • the first end face 31 and the second end face 32 extend overall in a direction rotating with respect to the driving-in direction 23 over a rotation angle of approximately 180 °.
  • a projection of the first end face 31 and the second end face 32 onto a drive-in plane oriented perpendicular to the drive-in direction extends on the one hand relative to the drive-in axis 38 from an inner radius r i of 7 mm to an outer radius r a of 65 mm and on the other hand from a front end 41 to a rear end 42.
  • the first end face 33 and the second end face 34 are each at an obtuse angle relative to the driving direction 23 ⁇ inclined by at least 135 °. This makes it easier for the driving tool to slide off a surface or the device to be fastened.
  • the front end 41 has a distance s v of 50 mm projected onto the driving axis 38 and the rear end has a distance s h of 150 mm from the pressing end projected onto the driving axis 38.
  • the deflector element 30 on the first end face 31 and / or on the second side 32 is made of a harder material than the housing 21.
  • the housing 21 is made of plastic and the deflector element 30 is made of steel.
  • the deflector element 30 is firmly connected to the housing 21.
  • the deflecting element is firmly connected to the pressure sensor.
  • the housing 21 comprises two housing parts 21a, 21b, between which the deflecting element 30 is arranged and in particular clamped.
  • the deflecting element 30 improves the sliding of the driving device 20 past parts which protrude from the ground or a device to be fastened. As a result, the driving tool 20 is pressed against the ground, particularly in confined spaces Space is easier. If the device to be fastened is, for example, a profiled sheet with protruding side walls, the side walls can under certain circumstances be spread apart by the deflecting elements, so that the driving tool can be easily pressed against the ground between the side walls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP18208300.6A 2018-11-26 2018-11-26 Appareil d'insertion Withdrawn EP3656507A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18208300.6A EP3656507A1 (fr) 2018-11-26 2018-11-26 Appareil d'insertion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18208300.6A EP3656507A1 (fr) 2018-11-26 2018-11-26 Appareil d'insertion

Publications (1)

Publication Number Publication Date
EP3656507A1 true EP3656507A1 (fr) 2020-05-27

Family

ID=64477013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18208300.6A Withdrawn EP3656507A1 (fr) 2018-11-26 2018-11-26 Appareil d'insertion

Country Status (1)

Country Link
EP (1) EP3656507A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6164510A (en) * 1998-06-03 2000-12-26 Illinois Tool Works Inc. Nosepiece shield for combustion powered tool
EP1486293A1 (fr) * 2003-06-02 2004-12-15 Societe De Prospection Et D'inventions Techniques Spit Appareil à chambre de combustion à fonctionnement à gaz
WO2008140085A1 (fr) * 2007-05-14 2008-11-20 Max Co., Ltd. Cloueur à commande mécanique
WO2009101891A1 (fr) * 2008-02-12 2009-08-20 Max Co., Ltd. Cloueuse
US20100308098A1 (en) * 2009-06-08 2010-12-09 Illinois Tool Works, Inc. Fastening tool with blind guide work contact tip

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6164510A (en) * 1998-06-03 2000-12-26 Illinois Tool Works Inc. Nosepiece shield for combustion powered tool
EP1486293A1 (fr) * 2003-06-02 2004-12-15 Societe De Prospection Et D'inventions Techniques Spit Appareil à chambre de combustion à fonctionnement à gaz
WO2008140085A1 (fr) * 2007-05-14 2008-11-20 Max Co., Ltd. Cloueur à commande mécanique
WO2009101891A1 (fr) * 2008-02-12 2009-08-20 Max Co., Ltd. Cloueuse
US20100308098A1 (en) * 2009-06-08 2010-12-09 Illinois Tool Works, Inc. Fastening tool with blind guide work contact tip

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