EP3670091A1 - Dispositif d'enfoncement - Google Patents

Dispositif d'enfoncement Download PDF

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Publication number
EP3670091A1
EP3670091A1 EP18213987.3A EP18213987A EP3670091A1 EP 3670091 A1 EP3670091 A1 EP 3670091A1 EP 18213987 A EP18213987 A EP 18213987A EP 3670091 A1 EP3670091 A1 EP 3670091A1
Authority
EP
European Patent Office
Prior art keywords
piston
transmission element
energy
energy transmission
cylindrical container
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Withdrawn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
EP18213987.3A
Other languages
German (de)
English (en)
Inventor
Emanuel Kurth
Alain Erni
Fabio Luongo
Michael Pulfer
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 EP18213987.3A priority Critical patent/EP3670091A1/fr
Priority to PCT/EP2019/083008 priority patent/WO2020126403A1/fr
Priority to ES19808836T priority patent/ES3019357T3/es
Priority to US17/416,436 priority patent/US12358109B2/en
Priority to EP19808836.1A priority patent/EP3898114B1/fr
Publication of EP3670091A1 publication Critical patent/EP3670091A1/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Withdrawn legal-status Critical Current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
    • B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
    • B25C1/047—Mechanical details
    • 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 driving a fastener into a subsurface.
  • a device for driving a fastening element into a substrate comprising a mechanical energy store for storing mechanical energy and one along a setting axis and in a driving direction between a starting position and a setting position movable energy transfer element for transferring energy from the mechanical energy store to the fastening element, wherein the energy transfer element has a rear end in the driving direction, the mechanical energy store having a first cylindrical container and a first piston, the first cylindrical container defines a first cylinder axis and the first piston is movably arranged in the first cylindrical container along the first cylinder axis, so that the first piston closes a partial volume of the first cylindrical container and a gas arranged in the closed partial volume of the first cylindrical container forms a first gas spring, wherein the device further comprises a power transmission device which transmits a spring force of the first gas spring to the rear end of the energy transmission element, and wherein the rear end of the E Energy transmission element is arranged in the driving direction behind the first piston when the energy transmission element is arranged in the starting
  • the device further comprises a roller train which has a first roller holder with a first roller and a belt running around the first roller, the first roller holder being mechanically connected to the first piston and a movement of the first piston transfers to the tape, and wherein the tape abuts the rear end of the energy transfer element.
  • the band dampens the impact accelerations of the energy transmission element and / or the device with respect to the gas springs and their seals, so that the service life of the device is increased.
  • An advantageous embodiment is characterized in that the rear end of the energy transmission element is arranged in the driving direction in front of the first piston when the energy transmission element is arranged in the setting position. This means that the energy transmission element, on its way from the starting position to the setting position, travels a greater distance in the driving-in direction than the first piston, whereby the space requirement of the device may be additionally reduced. Under certain circumstances, the lower speed of the first piston relieves its seals, which are therefore exposed to less wear.
  • the mechanical energy store has one or more further cylindrical containers and one or more further pistons, the further cylindrical containers each defining a further cylinder axis and the further pistons being movable along the respective further cylinder axis in the respective further cylindrical Containers are arranged so that the further pistons each close off a partial volume of the respective further cylindrical container and a gas arranged in the respective closed partial volume of the respective further cylindrical container forms a further gas spring, and the force transmission device applies a spring force of the further gas springs to the rear end transmits the energy transmission element.
  • the further cylinder axes preferably run parallel to the setting axis.
  • the first and all further cylinder axes are likewise preferably distributed uniformly around the setting axis.
  • the gas springs are pneumatically connected to one another. An associated pressure equalization between the gas springs also counteracts possible tilting moments.
  • the device has an energy transmission device for transmitting energy from an energy source to the mechanical energy store.
  • the device preferably has the energy source.
  • the energy source particularly preferably comprises an electric battery.
  • the energy transmission device comprises a motor and a movement converter for converting a rotary movement of the motor into a linear movement of the first piston with a rotary drive and a linear output, the movement converter preferably being arranged on the setting axis.
  • the motion converter preferably comprises a spindle drive driven by the motor with a threaded spindle and a spindle nut.
  • the motion converter comprises a drum, which is driven by the motor, on which a rope or band, preferably the band of the roller train, is wound.
  • the device comprises a coupling device for temporarily holding the energy transmission element in the starting position, the coupling device preferably being arranged on the setting axis.
  • the coupling device preferably has an open and a closed state, the coupling device temporarily holding the driving element in the starting position in the closed state of the coupling device.
  • Fig. 1 shows a driving device 10 for driving a fastening element, for example a nail or bolt, into a surface 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 drive device (also not shown) for conveying the energy transmission element are accommodated.
  • the driving-in device 10 also has a handle 30, a magazine 40 and a bridge 50 connecting the handle 30 to the magazine 40.
  • a scaffold hook 60 for suspending the driving device 10 on a scaffold or the like and an electrical energy store designed as an electrical accumulator 590 are fastened to the bridge 50.
  • a trigger 34 and a handle sensor designed as a manual switch 35 are arranged on the handle 30.
  • the driving-in device 10 has a guide channel 700 for guiding the fastening element and a pressing device 750 for recognizing a distance of the driving-in device 10 from a substrate (not shown). Alignment of the driving device perpendicular to a surface is supported by an alignment aid 45.
  • Fig. 2 shows the driving-in device 10 with the housing 20 open.
  • a drive device 70 for conveying an energy transmission element which is hidden in the drawing is accommodated in the housing 20.
  • the drive device 70 comprises an electric motor (not shown) for converting electrical energy from the rechargeable battery 590 into rotational energy, a torque transmission device comprising a transmission 400 for transmitting a torque of the electric motor to a motion converter designed as a spindle drive 300, and a force transmission device comprising a roller train 260 for transmitting a force from the motion converter to a mechanical energy store designed as a gas spring 200 and for transmitting a force from the gas spring 200 to the energy transmission element.
  • the drive 310 comprises a first cylindrical container 330, which defines a first cylinder axis, and a first piston 340, which is movable along the first cylinder axis is arranged in the first cylindrical container 330.
  • the first piston 340 closes off a partial volume of the first cylindrical container 330, so that a gas, for example air, arranged in the closed partial volume of the first cylindrical container 330 forms a first gas spring 350.
  • the drive 310 further comprises a further cylindrical container 360, which defines a further cylinder axis, and a further piston 370, which is arranged to be movable along the further cylinder axis in the further cylindrical container 360.
  • the further piston 370 closes off a partial volume of the further cylindrical container 360, so that a gas, for example air, arranged in the closed partial volume of the further cylindrical container 360 forms a further gas spring 350.
  • the drive 310 has a force transmission device designed as a preferably rigid linkage 390 which applies a spring force of the first gas spring 350 and the further gas spring 380 to the rear end 321 of the energy transmission element 320 transmits.
  • the energy transmission element 320 is accelerated along a setting axis 410 in a driving-in direction 420 and is moved toward a fastening element (not shown).
  • the first cylinder axis and the further cylinder axis advantageously run parallel to the setting axis 410.
  • the first cylinder axis and the further cylinder axis are arranged opposite one another with respect to the setting axis 410, that is to say distributed uniformly around the setting axis 410.
  • the energy transfer element 320 is located in FIG Fig. 3 in its starting position and in Fig. 4 in its set position, that is after a driving-in process. In both positions, the rear end 321 of the energy transmission element 320 is arranged in the driving direction 420 behind a front end face of the first piston 340 and a front end face of the further piston 370. In embodiments not shown, the rear end of the energy transmission element is arranged in the driving direction behind the complete first piston and / or behind the complete further piston.
  • the drive 510 comprises a first cylindrical container 530, which defines a first cylinder axis, and a first piston 540, which is movable along the first cylinder axis is arranged in the first cylindrical container 530.
  • the first piston 540 closes off a partial volume of the first cylindrical container 530, so that a gas, for example air, arranged in the closed partial volume of the first cylindrical container 530 forms a first gas spring 550.
  • the drive 510 further comprises a further cylindrical container 560, which defines a further cylinder axis, and a further piston 570, which is arranged to be movable along the further cylinder axis in the further cylindrical container 560.
  • the further piston 570 closes off a partial volume of the further cylindrical container 560, so that a gas, for example air, arranged in the closed partial volume of the further cylindrical container 560 forms a further gas spring 550.
  • the drive 510 has a roller train which has a first roller holder 630 with a first roller 640, a further roller holder 650 with a further roller 660 and a force transmission element 670 which is designed as a band and runs around the first roller 640 and around the second roller 660.
  • the first roller holder 630 is mechanically connected to the first piston 540, preferably fastened, and transmits a movement of the first piston 540 to the force transmission element 670.
  • the further roller holder 650 is mechanically connected to the further piston 570, preferably fastened, and transmits a movement of the further piston 570 to the force transmission element 670.
  • the force transmission element 670 in turn rests on the rear end 521 of the energy transmission element 520 and transmits a spring force of the first gas spring 550 and the second gas spring 580 to the energy transmission element 520.
  • the energy transmission element 520 is accelerated along a setting axis 610 in a driving direction 620 and is moved toward a fastening element (not shown).
  • the first cylinder axis and the further cylinder axis advantageously run parallel to the setting axis 610.
  • the first cylinder axis and the further cylinder axis are arranged opposite one another with respect to the setting axis 610, that is to say distributed uniformly around the setting axis 610.
  • the energy transfer element 520 is located in FIG Fig. 5 in its starting position and in Fig. 6 in its set position, that is after a driving-in process.
  • the rear end 521 of the energy transmission element 520 is arranged in the driving direction 620 behind a front end side of the first piston 540 and a front end side of the further piston 570.
  • the rear end of the energy transmission element is arranged in the driving direction behind the complete first piston and / or behind the complete further piston.
  • the force transmission element 670 is fixed at its ends to a housing 680 of the driving device, which is not shown any further.
  • a movement of the first piston 540 and the second piston 570 is transmitted to the energy transmission element 520 with a transmission factor two. Consequently, in the setting position, the rear end 521 of the energy transmission element 520 is arranged in the driving direction 620 in front of the front face of the first piston 540 and the front face of the further piston 570 and thus in front of the complete pistons 540, 570.
  • Fig. 7 shows a drive 710 designed as a mechanical energy store and an energy transmission element 720 designed as a setting piston, which moves along a setting axis 725.
  • the drive 710 comprises a first cylindrical container 731 with a first piston and three further cylindrical containers 732, 733, 734, each with one another piston.
  • the drive 710 has a roller train which comprises a single roller holder 760 with a first roller 761 and a second roller 762. All four pistons are connected to the roller holder 760 for power transmission, preferably attached to it. Furthermore, the roller train comprises a belt 770 which wraps around the first roller 761, a rear end (not shown) of the energy transmission element 720, the second roller 762 and two further rollers 763, 764, so that the belt 770 is designed as a circulating belt. As a result, movement of the pistons is transmitted to the energy transmission element 720 with a transmission factor of two.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP18213987.3A 2018-12-19 2018-12-19 Dispositif d'enfoncement Withdrawn EP3670091A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP18213987.3A EP3670091A1 (fr) 2018-12-19 2018-12-19 Dispositif d'enfoncement
PCT/EP2019/083008 WO2020126403A1 (fr) 2018-12-19 2019-11-29 Dispositif d'enfoncement
ES19808836T ES3019357T3 (en) 2018-12-19 2019-11-29 Driving device
US17/416,436 US12358109B2 (en) 2018-12-19 2019-11-29 Driving-in apparatus
EP19808836.1A EP3898114B1 (fr) 2018-12-19 2019-11-29 Dispositif d'enfoncement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18213987.3A EP3670091A1 (fr) 2018-12-19 2018-12-19 Dispositif d'enfoncement

Publications (1)

Publication Number Publication Date
EP3670091A1 true EP3670091A1 (fr) 2020-06-24

Family

ID=64746137

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18213987.3A Withdrawn EP3670091A1 (fr) 2018-12-19 2018-12-19 Dispositif d'enfoncement
EP19808836.1A Active EP3898114B1 (fr) 2018-12-19 2019-11-29 Dispositif d'enfoncement

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19808836.1A Active EP3898114B1 (fr) 2018-12-19 2019-11-29 Dispositif d'enfoncement

Country Status (4)

Country Link
US (1) US12358109B2 (fr)
EP (2) EP3670091A1 (fr)
ES (1) ES3019357T3 (fr)
WO (1) WO2020126403A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4296005A1 (fr) * 2022-06-09 2023-12-27 Basso Industry Corp. Ensemble d'engrenages de levage et pistolet à clous électrique le comprenant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4667160A1 (fr) 2024-06-19 2025-12-24 Hilti Aktiengesellschaft Outil avec ressorts à gaz et système de protection contre la poussière
EP4711088A1 (fr) 2024-09-17 2026-03-18 Hilti Aktiengesellschaft Dispositif et procédé d'entraînement d'un élément de fixation dans un sous-sol

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005000089A1 (de) * 2005-07-13 2007-01-25 Hilti Ag Handgeführtes Eintreibgerät
EP2489474A2 (fr) * 2011-02-18 2012-08-22 Max Co., Ltd. Outil de commande
TW201607703A (zh) * 2014-08-28 2016-03-01 日立工機股份有限公司 釘入機
EP3159113A1 (fr) * 2015-10-21 2017-04-26 HILTI Aktiengesellschaft Dispositif d'enfoncement manuel et procede de fonctionnement d'un tel dispositif d'enfoncement manuel
US20180207777A1 (en) * 2016-07-06 2018-07-26 Tti (Macao Commercial Offshore) Limited Powered fastener driver

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011089860A1 (de) * 2011-12-23 2013-06-27 Hilti Aktiengesellschaft Eintreibvorrichtung
EP2881222A1 (fr) * 2013-12-04 2015-06-10 HILTI Aktiengesellschaft Dispositif d'entraînement
US20190224825A1 (en) * 2018-01-24 2019-07-25 Tricord Solutions, Inc. Gas spring and impacting and driving apparatus with gas spring

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005000089A1 (de) * 2005-07-13 2007-01-25 Hilti Ag Handgeführtes Eintreibgerät
EP2489474A2 (fr) * 2011-02-18 2012-08-22 Max Co., Ltd. Outil de commande
TW201607703A (zh) * 2014-08-28 2016-03-01 日立工機股份有限公司 釘入機
EP3159113A1 (fr) * 2015-10-21 2017-04-26 HILTI Aktiengesellschaft Dispositif d'enfoncement manuel et procede de fonctionnement d'un tel dispositif d'enfoncement manuel
US20180207777A1 (en) * 2016-07-06 2018-07-26 Tti (Macao Commercial Offshore) Limited Powered fastener driver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4296005A1 (fr) * 2022-06-09 2023-12-27 Basso Industry Corp. Ensemble d'engrenages de levage et pistolet à clous électrique le comprenant

Also Published As

Publication number Publication date
US12358109B2 (en) 2025-07-15
WO2020126403A1 (fr) 2020-06-25
US20220072690A1 (en) 2022-03-10
EP3898114A1 (fr) 2021-10-27
EP3898114B1 (fr) 2025-04-09
EP3898114C0 (fr) 2025-04-09
ES3019357T3 (en) 2025-05-20

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