WO2019233848A1 - Appareil de pose - Google Patents

Appareil de pose Download PDF

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Publication number
WO2019233848A1
WO2019233848A1 PCT/EP2019/063945 EP2019063945W WO2019233848A1 WO 2019233848 A1 WO2019233848 A1 WO 2019233848A1 EP 2019063945 W EP2019063945 W EP 2019063945W WO 2019233848 A1 WO2019233848 A1 WO 2019233848A1
Authority
WO
WIPO (PCT)
Prior art keywords
setting
axis
piston plate
tool according
driving element
Prior art date
Application number
PCT/EP2019/063945
Other languages
German (de)
English (en)
Inventor
Tilo Dittrich
Norbert Heeb
Thomas Sperrfechter
Original Assignee
Hilti Aktiengesellschaft
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 Aktiengesellschaft filed Critical Hilti Aktiengesellschaft
Publication of WO2019233848A1 publication Critical patent/WO2019233848A1/fr

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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
    • B25C1/06—Hand-held nailing tools; Nail feeding devices operated by electric power

Definitions

  • the present invention relates to a setting device for driving fasteners into a substrate.
  • Such setting tools usually have a receptacle for a fastening element, from which a fastener received therein is conveyed along a setting axis into the ground.
  • a driving element is for this purpose driven by a drive along the setting axis to the fastener.
  • a setting device with a drive for a driving element is known.
  • the drive has an electrical capacitor and a coil.
  • the capacitor is discharged via the coil, whereby a Lorentz force acts on the driving element, so that the driving element is moved towards a nail.
  • the object of the present invention is to provide a setting device of the aforementioned type, in which a high efficiency and / or a good setting quality is ensured.
  • a setting tool for driving fasteners into a substrate comprising a receptacle, which is intended to receive a fastener, a driving element, which is intended to a recorded in the recording fastener along a setting axis in to convey the substrate, wherein the driving element has a piston plate with a front side facing the receptacle and a rear side facing away from the receptacle, a drive which is provided to drive the driving element along the setting axis on the fastening element, wherein the piston plate has a leading from the front to the backside passageway.
  • the passageway ensures a pressure equalization between the front and the back, whereby a back pressure upstream of the driving element and / or a suction pressure behind the driving element and a concomitant loss of energy are reduced.
  • the setting tool is preferably handheld used. Alternatively, the setting device can be used stationary or semi-stationary.
  • a capacitor in the sense of the invention is to be understood as meaning an electrical component which stores electrical charge and the energy associated therewith in an electric field.
  • a capacitor has two electrically conductive electrodes, between which the electric field builds up when the electrodes are electrically charged differently.
  • a fastener according to the invention for example, a nail, a pin, a clip, a clip, a bolt, in particular threaded bolt or the like to understand.
  • An advantageous embodiment is characterized in that the passage channel has a front opening in the front and a rear opening in the back, and wherein the passageway defines in a region of the rear orifice a flow axis for an air flow, which leaves the passageway through the rear orifice ,
  • the flow axis preferably runs parallel to the setting axis.
  • the flow axis is inclined relative to the setting axis.
  • the flow axis and the setting axis preferably have an intersection point.
  • the point of intersection is arranged in front of the piston plate.
  • the flow axis and the setting axis are skewed to each other.
  • An advantageous embodiment is characterized in that the passage channel from the front to the back is rectilinear and in particular is formed as a bore.
  • the setting device comprises a guide cylinder, in which the piston plate is guided.
  • the guide cylinder preferably has on its side facing the receptacle a front end section in which a brake element is arranged, the front side of the piston plate having a contact surface annularly surrounding the setting axis, which contacts the brake element when the piston plate is arranged in the front end section.
  • the front orifice is arranged radially with respect to the setting axis within the contact surface.
  • An advantageous embodiment is characterized in that the driving element comprises a piston rod, wherein in the direction of the setting axis the receptacle is arranged in front of the piston rod and the piston plate behind the piston rod.
  • the drive comprises an electrical capacitor, a squirrel cage arranged on the squirrel cage and an excitation coil, which is flowed through in a discharge of the capacitor with current and generates a magnetic field which accelerates the driving element to the fastener.
  • the squirrel-cage rotor is arranged on the rear side of the piston plate, wherein the rear opening is arranged with respect to the setting axis radially inside the squirrel cage rotor.
  • a capacitor in the sense of the invention is to be understood as meaning an electrical component which stores electrical charge and the energy associated therewith in an electric field.
  • a capacitor has two electrically conductive electrodes, between which the electric field builds up when the electrodes are electrically charged differently.
  • FIG. 5 shows a driving element in a guide cylinder in a longitudinal section
  • Fig. 12 shows a piston plate in a plan view
  • Fig. 13 a piston plate in a plan view.
  • a hand-held setting tool 10 for driving fasteners in a substrate, not shown.
  • the setting tool 10 has a receptacle 20 designed as a bolt guide, in which a fastening element 30 embodied as a nail is received in order to be driven into the underground along a setting axis A (in FIG. 1 to the left).
  • the setting device 10 For a supply of fastening elements to the receptacle, the setting device 10 comprises a magazine 40 in which the fastening elements are accommodated individually or in the form of a fastener element strip 50 and are transported gradually into the receptacle 20.
  • the magazine 40 has for this purpose an unspecified spring-loaded feed element.
  • the setting device 10 has a drive-in element 60, which comprises a piston plate 70 and a piston rod 80.
  • the driving-in element 60 is intended to transport the fastening element 30 out of the receptacle 20 along the setting axis A into the ground.
  • the driving element 60 is guided with its piston plate 70 in a guide cylinder 95 along the setting axis A.
  • the driving element 60 in turn is driven by a drive which comprises a squirrel cage 90 arranged on the piston plate 70, an excitation coil 100, a soft magnetic frame 105, a circuit 200 and a capacitor 300 with an internal resistance of 5 mOhm.
  • the short-circuit rotor 90 consists of a preferably annular, particularly preferably annular element with a low electrical resistance, for example copper, and is fastened on the side facing away from the receptacle 20 side of the piston plate 70 on the piston plate 70, for example, soldered, welded, glued, clamped or positively connected.
  • the piston plate itself is designed as a squirrel-cage rotor.
  • the circuit 200 is intended to cause a rapid electrical discharge of the previously charged capacitor 300 and to guide the discharge current flowing through it through the excitation coil 100, which is embedded in the frame 105.
  • the frame preferably has a saturation flux density of at least 1.0 T and / or an effective electrical conductivity of at most 10 6 S / m, so that a magnetic field generated by the exciter coil 100 amplifies from the frame 105 and suppresses eddy currents in the frame 105 become.
  • This developing and thus changing secondary current in turn generates a secondary magnetic field, which is opposite to the excitation magnetic field, whereby the squirrel cage rotor 90 experiences a repelling of the excitation coil 100 Lorentz force which drives the driving element 60 on the receptacle 20 and the fastener 30 received therein ,
  • the setting tool 10 further comprises a housing 110, in which the drive is received, a handle 120 with a designed as a trigger actuator 130, designed as a battery electric energy storage 140, a control unit 150, a trigger switch 160, a pressure switch 170, as an means for detecting a temperature of the excitation coil 100 and electrical connecting lines 141, 161, 171, 181, 201, 301, which are formed by the temperature sensor 180 and which contain the control unit 150 with the electrical energy store 140, the trigger switch 160, the contact pressure switch 170, the temperature sensor 180, the circuit 200 and the capacitor 300 connect.
  • the setting tool 10 is supplied instead of the electrical energy storage 140 or in addition to the electrical energy storage 140 by means of a power cable with electrical energy.
  • the control unit comprises electronic components, preferably interconnected on a circuit board to one or more control circuits, in particular one or more microprocessors.
  • an unspecified contact element actuates the contact pressure switch 170, which thereby transmits a contact signal to the control unit 150 by means of the connecting line 171.
  • the control unit 150 initiates a capacitor charging process in which electrical energy is conducted from the electrical energy storage 140 to the control unit 150 via the connection line 141 and from the control unit 150 to the condenser 300 via the connection lines 301 in order to charge the capacitor 300 ,
  • the control unit 150 comprises a switching converter (not designated in more detail) which converts the electric current from the electrical energy store 140 into a suitable charging current for the capacitor 300.
  • the setting tool 10 When the capacitor 300 is charged and the driving element 60 is in the position ready to set shown in Fig. 1, the setting tool 10 is in a ready to be set State. Characterized in that the charging of the capacitor 300 is effected only by the pressing of the setting device 10 to the ground, a setting process is only possible to increase the safety of bystanders when the setting tool 10 is pressed against the ground. In embodiments not shown, the control unit initiates the capacitor charging process already when the setting device is switched on or when the setting device is lifted off the ground or at the end of a preceding driving operation.
  • the actuating element 130 If the actuating element 130 is actuated when the setting tool 10 is ready for setting, for example by pulling with the index finger of the hand, which encompasses the handle 120, the actuating element 130 actuates the trigger switch 160, which thereby transmits a triggering signal to the control unit 150 via the connecting line 161. From this, the control unit 150 initiates a capacitor discharging operation in which electrical energy stored in the capacitor 300 is conducted from the capacitor 300 to the exciting coil 100 by means of the switching circuit 200 by discharging the capacitor 300.
  • the circuit 200 shown schematically in FIG. 1 for this purpose comprises two discharge lines 210, 220 which connect the capacitor 300 to the exciter coil 200 and of which at least one discharge line 210 is interrupted by a normally open discharge switch 230.
  • the circuit 200 forms an electrical resonant circuit with the exciter coil 100 and the capacitor 300. A swinging back and forth of this resonant circuit and / or a negative charging of the capacitor 300 may have a negative effect on an efficiency of the drive, but can be prevented by means of a freewheeling diode 240.
  • the discharge lines 210, 220 are electrically connected by means of one of the receptacle 20 facing the end face 360 of the capacitor 300 electrical contacts 370, 380 of the capacitor 300, each with an electrode 310, 320 of the capacitor 300, for example by soldering, welding, screwing, jamming or form-fitting.
  • the discharge switch 230 is preferably suitable for switching a discharge current with high current and is designed, for example, as a thyristor.
  • the discharge lines 210, 220 have a small distance from one another, so that a parasitic magnetic field induced by them is as small as possible.
  • the discharge lines 210, 220 are combined into a bus bar and held together by a suitable means, such as a holder or a clip.
  • the freewheeling diode is electrically parallel to the discharge switch connected. In further embodiments, not shown, no free-wheeling diode is provided in the circuit.
  • the control unit 150 closes the discharge switch 230 by means of the connection line 201, whereby a discharge current of the capacitor 300 flows through the exciter coil 100 with high current intensity.
  • the rapidly increasing discharge current induces a field magnetic field, which passes through the squirrel-cage rotor 90 and induces in its squirrel-cage rotor 90, in turn, an annular secondary electric current.
  • This secondary current that builds up in turn generates a secondary magnetic field which is opposite to the excitation magnetic field, whereby the squirrel cage rotor 90 experiences a Lorentz force repelling the exciting coil 100, which drives the driving element 60 onto the receptacle 20 and the fastening element 30 received therein.
  • the fastening element 30 is driven by the driving element 60 into the ground. Excess kinetic energy of the driving element 60 is absorbed by a braking element 85 made of a resilient and / or damping material, such as rubber, by the driving element 60 moves with the piston plate 70 against the brake member 85 and is braked by this to a standstill. Thereafter, the driving-in element 60 is returned to the setting position by an unspecified return device.
  • a braking element 85 made of a resilient and / or damping material, such as rubber
  • the capacitor 300 in particular its center of gravity, is arranged on the setting axis A behind the driving element 60, whereas the receptacle 20 is arranged in front of the driving element 60.
  • the capacitor 300 is thus arranged axially offset from the driving-in element 60 and radially overlapping with the driving-in element 60.
  • a short length of the discharge lines 210, 220 can be realized, as a result of which the resistances thereof can be reduced and thus an efficiency of the drive can be increased.
  • a small distance of a center of gravity of the setting device 10 to the setting axis A can be realized. As a result, tilting moments during a recoil of the setting device 10 during a driving operation are low.
  • the capacitor is arranged around the driving element around.
  • the electrodes 310, 320 are arranged on opposite sides on a carrier film 330 wound around a winding axis, for example by metallization of the carrier film 330, in particular vapor-deposited, the winding axis coinciding with the setting axis A.
  • the capacitor is arranged for example around the setting axis.
  • the carrier film 330 has a film thickness of between 2.5 ⁇ m and 4.8 ⁇ m for a charging voltage of the capacitor 300 of 1500 V, and a film thickness of, for example, 9.6 ⁇ m for a charging voltage of the capacitor 300 of 3000 V.
  • the carrier film is in turn composed of two or more individual films stacked on top of each other.
  • the electrodes 310, 320 have a sheet resistance of 50 ohms / n.
  • a surface of the capacitor 300 has the shape of a cylinder, in particular a circular cylinder whose cylinder axis coincides with the setting axis A.
  • a height of this cylinder in the direction of the winding axis is substantially as large as its diameter measured perpendicular to the winding axis.
  • a low internal resistance of the capacitor 300 is also achieved by a large cross-section of the electrodes 310, 320, in particular by a high layer thickness of the electrodes 310, 320, wherein the effects of the layer thickness on a self-healing effect and / or a lifetime of the capacitor 300 are to be considered.
  • the capacitor 300 is damped by means of a damping element 350 mounted on the other setting tool 10.
  • the damping element 350 damps movements of the capacitor 300 relative to the rest of the setting device 10 along the setting axis A.
  • the damping element 350 is arranged on the end face 360 of the capacitor 300 and completely covers the end face 360.
  • the electrical contacts 370, 380 protrude from the end face 360 and penetrate the damping element 350.
  • the damping element 350 has for this purpose in each case an exemption, through which the electrical contacts 370, 380 protrude.
  • the connecting lines 301 have to compensate for relative movements between the capacitor 300 and the other setting tool 10 each have a discharge and / or expansion loop, not shown.
  • a further damping element is arranged on the capacitor, for example on its end facing away from the receptacle end face.
  • the capacitor is then clamped between two damping elements, that is, the damping elements are applied to the capacitor with a bias voltage.
  • the connecting lines have a rigidity which decreases continuously as the distance from the capacitor increases.
  • a hand-held setting tool 410 for driving fasteners along a set axis Ai (in Fig. 2 to the left) in a subsoil, not shown fragmentary.
  • the setting device 410 has a driving element 460, which comprises a piston plate 470 and a piston rod 480.
  • the driving element 460 is guided with its piston plate 470 in a guide cylinder 495 along the setting axis Ai.
  • the driving element 460 in turn is driven by a drive which comprises a squirrel cage 470 disposed on the shorting rotor 490, an excitation coil 500, a soft magnetic frame 505, a circuit not shown and a capacitor, also not shown.
  • the setting device 410 further comprises a housing 510, in which the drive is accommodated. Further elements and the mode of operation of the setting device 410 essentially correspond to those of the setting device 10 shown in FIG. 1.
  • the guide cylinder 495 is circular-cylindrical and comprises a circular surface arranged circularly about the setting axis Ai, which has a plurality of non-closable openings 496 which are distributed along the setting axis Ai.
  • the openings 496 ensure ventilation of the guide cylinder 495 in front of and behind the driving element 460, whereby a back pressure upstream of the driving element 460 and a suction pressure downstream of the driving element 460 are reduced.
  • Between the openings 496 and the housing 510 is a gap in which the air can escape.
  • the housing further openings, which communicate with the openings of the guide cylinder by means of a gap, by means of a flow channel or directly.
  • the guide cylinder 495 has a front end portion 497 and a rear end portion 498. All of the openings 496 are located outside the rear end portion 498 so that a closed rear cavity 499 is formed in the rear end portion 498 when the driving element 460, in particular the piston plate 470, is located in the rear end portion 498.
  • the guide cylinder 495 further includes a rear check valve 520 which allows air flow into the rear cavity 499 and blocks air flow out of the rear cavity 499. As a result, the driving element 460 is braked in a backward movement, but not essential in a forward movement.
  • the guide cylinder has a front check valve that allows air flow into the front cavity and blocks air flow out of the front cavity.
  • the guide cylinder 495 is produced, for example, by means of a primary molding process, in particular an injection molding process.
  • the openings are punched in a flat plastic film and then rolled the plastic film for the production of the guide cylinder in a cylindrical shape, for example by hot rolling.
  • the openings are preferably punched by a later cylinder inside in the direction of a later cylinder outer side, so that no punched edges protrude into the guide cylinder.
  • the plastic material used is in particular PA with, for example, 30% carbon fibers and / or 15% PTFE.
  • a guide cylinder 600 of a setting device not shown in a longitudinal section is shown.
  • a lateral surface of the guide cylinder 600 has a plurality of openings 610, which are arranged both along a setting axis, not shown, as well as along a circumference about the setting axis.
  • the guide cylinder 600 has a front end portion 620 and a rear end portion 630. All of the openings 610 are located outside the rear end portion 630 so that a closed rear cavity is formed in the rear end portion 630 when a not shown driving element is in the rear end portion 630.
  • a driving element 640 is shown in a guide cylinder 650 of a setting device not shown in a longitudinal section.
  • the drive-in element 640 comprises a piston plate 641 and a piston rod 642.
  • An outer surface of the guide cylinder 650 has a multiplicity of openings 660, which are arranged both along a setting axis (not shown) and along a circumference about the setting axis.
  • the guide cylinder 650 has a front end portion 670 and a rear end portion 680.
  • a braking element 690 is arranged for the driving element 640. All openings 660 are arranged outside the front end section 670.
  • the openings 660 ensure a vent 665 of the guide cylinder 650 in front of the piston plate 641 and a ventilation behind the driving element 640, whereby a back pressure before the driving element 640 and a suction pressure behind the driving element 640 are reduced.
  • the brake member 690 is completely disposed in the front end portion 670, so that the piston plate 641 can dip into the front end section 670 before the driving element 640, in particular the piston plate 641, impinges on the brake element 690.
  • the brake element 690 is made of an elastic material, for example rubber, and brakes the movement of the driving element 640 as soon as the driving element 640, in particular the piston plate 641, strikes the brake element 690.
  • openings 700, 710 are shown by way of example in a guide cylinder (not further shown) of a setting device (also not shown).
  • the openings 700 (in FIG. 6, top) have a circular cross-sectional area and are arranged in several rows along a setting axis A 2 .
  • An extension of each of the openings 700 in the direction of the setting axis A 2 is therefore the same size as transverse to the setting axis A 2 .
  • the openings 710 are slit-shaped and are arranged in several rows along a setting axis A 3 .
  • a longitudinal direction of the respective slot is inclined with respect to the setting axis A 3 .
  • This angle of inclination is less than 45 °, for example 25 °, so that an extension of each of the openings 710 in the direction of the setting axis A 3 is greater than transverse to the setting axis.
  • a guide cylinder 800 of a setting device not shown in a longitudinal section is shown.
  • a lateral surface of the guide cylinder 800 has a plurality of openings 810, which are arranged in a row along a circumference about the setting axis.
  • the openings 810 ensure ventilation of the guide cylinder 800 in front of and / or behind the drive-in element.
  • the openings 810 are slot-shaped, wherein a longitudinal direction of the respective slot is aligned parallel to the setting axis.
  • the openings 810 extend from a front end portion 820 of the guide cylinder 800 to a rear end portion 830 of the guide cylinder 800.
  • the present guide cylinder has four openings 810 and four webs 840, which are arranged alternately in a circumferential row. In embodiments not shown more than four, three, two or only one opening are provided, which along the setting axis or the setting axis inclined in one, two or more circumferential rows are arranged. In order to ensure adequate guidance of the driving element, the individual openings should not extend over a circumferential angle of more than 180 °. In other embodiments, not shown, the openings are formed continuously, so that the webs are separated from each other and act as a single guide rods for the piston head.
  • the guide cylinder 800 shown in Fig. 7 is shown twice in a cross-sectional view.
  • the sectional plane of the left-hand view in FIG. 8 lies in the region of the front end section 820 or in the region of the rear end section 830, where no openings are arranged in each case.
  • the sectional plane of the right-hand view in FIG. 8 lies in the area of the openings 810 and webs 840.
  • a piston plate 870 of a drive-in not shown in a guide cylinder 850 of a setting device also not shown in a longitudinal section is shown schematically.
  • the driving-in element is intended to be moved along a setting axis A 4 in order to drive in a fastening element, not shown, into a base, which is likewise not shown (in FIG. 9, downwards).
  • the piston plate 870 has a front side 871 and a rear side 872 as well as two or more passage channels 880 leading from the front side 871 to the rear side 872.
  • the passageways 880 each extend rectilinearly from the front side 871 to the rear side 872 and are formed as bores.
  • Each passageway 880 opens into the front 871 with a front orifice 881 and into the back 872 with a rear orifice 882.
  • the passageway 880 defines an airflow flow axis S which communicates the passageway 880 through the rearward orifice 882 leaves.
  • the flow axis S is parallel to the setting axis A 4 .
  • the passageway 880 allows airflow from the forward orifice 881 to the rearward orifice 882 and vice versa and provides pressure equalization between the front 871 and the back 872. This provides a back pressure upstream of the piston plate 870 and / or a suction pressure behind the piston plate 870 and a concomitant loss of energy is reduced.
  • a driving element 910 is shown schematically in a guide cylinder 900 of a setting device not shown.
  • the driving element 910 comprises a piston plate 911 and a piston rod 912.
  • the guide cylinder 900 has a front end portion 920.
  • a braking element 930 is arranged for the driving element 910.
  • the Driving element 910 is intended to be moved along a setting axis A 5 in order to drive a fastening element, not shown, into a base, which is likewise not shown (downward in FIG. 10).
  • the piston plate 911 has a front side 921 and a rear side 922 as well as two or more passage channels 940 leading from the front side 921 to the rear side 922. Each passageway 940 opens into the front 921 with a front mouth 941 and into the back 922 with a rear mouth 942.
  • the driving element 910 is braked by the braking element 930.
  • 10 shows the driving element 910 at the time when the piston plate 911 impinges on the braking element 930.
  • the piston plate 91 1 has an attachment surface 915, which surrounds the setting axis A 5 in an annular manner and which contacts the brake element 930.
  • the piston plate 911 is located at the front end portion 920 at this time.
  • each passage channel 940 is arranged radially with respect to the setting axis A 5 within the contact surface 915, so that in the front end portion 920 radially outside the braking element 930 a closed front cavity 935 is formed, which of the driving element 910, in particular the piston plate 91st 1, is compressed and in the manner of a gas spring, the movement of the driving element 910 additionally brakes.
  • the brake element 930 is in particular made of an elastic material, for example rubber.
  • a piston plate 970 of a drive-in not shown further in a guide cylinder 950 of a setting device also not shown in a longitudinal section is shown schematically.
  • the driving-in element is intended to be moved along a setting axis A Q in order to drive a fastening element, not shown, into a base, which is likewise not shown (downward in FIG. 11).
  • the piston plate 970 has a front side 971 and a rear side 972 as well as two or more passage channels 980 leading from the front side 971 to the rear side 972.
  • Each passageway 980 opens into the front 971 with a front orifice 981 and into the rear 972 with a rear orifice 982.
  • the passageway 980 defines an air flow flow axis S 'which communicates the passageway 980 through the rearward one Mouth 982 leaves.
  • the flow axis S ' is inclined to the setting axis AQ, SO that the air flow is directed to a lateral surface of the guide cylinder 950.
  • An intersection point P of the flow axis S 'with the setting axis A Q is arranged in front of the piston plate 970.
  • FIG. 12 shows a top view of a piston plate 990 of a drive-in element (not further shown).
  • the piston plate 990 has a non-visible front side and a rear side 992 and four passage channels 995 leading from the front side to the rear side 992.
  • Each of the four passageways 995 opens with a front mouth 996 in the front and with a rear mouth 997 in the back 992.
  • each passageway 995 defines a not lying in the plane of Fig. 12 flow axis for air flow , which leaves the passageway 995 through the rear orifice 997.
  • the flow axis and a perpendicular to the plane extending set axis are skewed to each other. Due to the arrangement and orientation of the passage channels 995 shown in FIG.
  • FIG. 13 shows a top view of a piston plate 1090 of a drive-in element (not further shown).
  • the piston plate 1090 has a non-visible front and a back 1092 and four from the front to the back 1092 leading through channels 1095.
  • Each of the four passageways 1095 is formed by a recess on an outer edge 1099 of the piston plate 1090.
  • a skew orientation of the passageways 1095 as in the embodiment shown in Fig. 12, a rotating air flow around the setting axis is generated, whereby cooling of a guide cylinder, not shown, is improved.
  • the passageways formed by recesses are aligned parallel to each other and / or to a setting axis.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

Appareil de pose pour l'insertion d'éléments de fixation dans un support, comprenant un logement qui est conçu pour recevoir un élément de fixation, un élément d'insertion qui est conçu pour déplacer un élément de fixation reçu dans le logement le long d'un axe de pose dans le support, l'élément d'insertion comprenant une tête de piston et une tige de piston, un entraînement qui est conçu pour entraîner l'élément d'insertion vers l'élément de fixation le long de l'axe de pose, un cylindre de guidage dans lequel la tête de piston est guidée le long de l'axe de pose et des passages à travers lesquels l'air s'échappe du cylindre.
PCT/EP2019/063945 2018-06-06 2019-05-29 Appareil de pose WO2019233848A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18176195.8 2018-06-06
EP18176195.8A EP3578310A1 (fr) 2018-06-06 2018-06-06 Outil de fixation

Publications (1)

Publication Number Publication Date
WO2019233848A1 true WO2019233848A1 (fr) 2019-12-12

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PCT/EP2019/063945 WO2019233848A1 (fr) 2018-06-06 2019-05-29 Appareil de pose

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EP (1) EP3578310A1 (fr)
TW (1) TW202000394A (fr)
WO (1) WO2019233848A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023285307A1 (fr) 2021-07-10 2023-01-19 Rhefor Gbr Outil de pose

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2531700B1 (de) * 1975-07-16 1977-01-20 Karlheinz Dr Senckel Zweiphasen-asynchronmotor
US4573624A (en) * 1982-08-28 1986-03-04 Erwin Muller Gmbh & Co. Portable electric stapler
US6662990B1 (en) * 2003-01-03 2003-12-16 Modern Pioneer Ltd. Buffer apparatus of electrical nailing gun
US6830173B2 (en) 2000-08-25 2004-12-14 Senco Products, Inc. Impact device
DE102005000107A1 (de) * 2005-08-25 2007-03-01 Hilti Ag Pneumatisch betriebenes Setzgerät
WO2008117881A1 (fr) * 2007-03-26 2008-10-02 Hitachi Koki Co., Ltd. Outil de pose de fixations

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2531700B1 (de) * 1975-07-16 1977-01-20 Karlheinz Dr Senckel Zweiphasen-asynchronmotor
US4573624A (en) * 1982-08-28 1986-03-04 Erwin Muller Gmbh & Co. Portable electric stapler
US6830173B2 (en) 2000-08-25 2004-12-14 Senco Products, Inc. Impact device
US6662990B1 (en) * 2003-01-03 2003-12-16 Modern Pioneer Ltd. Buffer apparatus of electrical nailing gun
DE102005000107A1 (de) * 2005-08-25 2007-03-01 Hilti Ag Pneumatisch betriebenes Setzgerät
WO2008117881A1 (fr) * 2007-03-26 2008-10-02 Hitachi Koki Co., Ltd. Outil de pose de fixations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023285307A1 (fr) 2021-07-10 2023-01-19 Rhefor Gbr Outil de pose

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TW202000394A (zh) 2020-01-01
EP3578310A1 (fr) 2019-12-11

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