EP2886256A1 - Appareil de pose - Google Patents

Appareil de pose Download PDF

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Publication number
EP2886256A1
EP2886256A1 EP13197908.0A EP13197908A EP2886256A1 EP 2886256 A1 EP2886256 A1 EP 2886256A1 EP 13197908 A EP13197908 A EP 13197908A EP 2886256 A1 EP2886256 A1 EP 2886256A1
Authority
EP
European Patent Office
Prior art keywords
setting
piston
different
working space
cartridge
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Withdrawn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
EP13197908.0A
Other languages
German (de)
English (en)
Inventor
Matthias Blessing
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 EP13197908.0A priority Critical patent/EP2886256A1/fr
Priority to PCT/EP2014/076984 priority patent/WO2015091090A1/fr
Publication of EP2886256A1 publication Critical patent/EP2886256A1/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Withdrawn legal-status Critical Current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
    • B25C1/08—Hand-held nailing tools; Nail feeding devices operated by combustion pressure
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge
    • B25C1/16—Cartridges specially adapted for impact tools; Cartridge and bolts units
    • B25C1/163—Cartridges
    • 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
    • B25C1/10—Hand-held nailing tools; Nail feeding devices operated by combustion pressure generated by detonation of a cartridge

Definitions

  • the present invention relates to a system with a powder-operated setting device according to the preamble of claim 1 and a method for setting a setting element in a setting object according to the preamble of claim 12.
  • Setting elements eg. As nails or bolts are introduced with a setting tool in a setting object to use by means of the setting elements on the setting object z. B. to attach a fastener.
  • the setting elements can also additionally in the fastening part, for.
  • As a wooden slat are introduced as a further setting object to the fastening part to the other setting object, for.
  • Powdered power tools include a piston mounted on a piston guide.
  • the piston delimits together with the piston guide a working space and the working space is in fluid communication with a cartridge receptacle.
  • a cartridge with powder as fuel and an igniter is present in the cartridge holder.
  • a striking element of the igniter is ignited and thereby set the powder on fire.
  • Due to the combustion of the powder the pressure is greatly increased within the working space, thereby acting on a work limiting surface of the piston, the pressure of the gas within the working space.
  • the piston is standing with a Device, for example, a piston skirt, for introducing the setting element in mechanical operative connection, so that thereby the setting element can be introduced into the setting object.
  • the individual cartridges with the powder are arranged on a cartridge strip.
  • different cartridge strips are held with a different amount of powder within each one cartridge.
  • these are correspondingly optically differently marked, for example by colors or by corresponding number imprints.
  • the user or user of the powder-powered setting tool must therefore constantly hold different cartridge strips or cartridges for an adaptation of the setting energy.
  • the set energy that is required is often determined on site at the construction site only in setting experiments. For example, if the user is buying cartridges with an improper amount of powder within the cartridge, the user must return the mis-purchased cartridge and buy a cartridge or strip of cartridge with the right amount of powder commercially. This means a significant time delay for the user.
  • a great deal of effort is required to constantly keep the different cartridge strips available for the user to buy.
  • the DE 199 83 546 T1 shows a powder-powered setting tool.
  • An orifice plate divides the combustion chamber into an upper and a lower volume.
  • In the combustion chamber opens an adjustable volume chamber.
  • the size of the additional volume chamber can be varied by the adjustment of a movable plate and thereby the set energy can be controlled by the user.
  • the object of the present invention is to provide a system with a powder-powered setting tool and a method for setting a setting element in a setting object, in which the setting elements are introduced even with an identical amount of powder in the cartridges with a different setting energy in the setting object can.
  • the setting device comprising a piston guide, a piston, a cartridge receptacle for a cartridge with powder as fuel, a working space which is fluid-conductively connected to the cartridge receptacle, and the piston guide and a working boundary surface of the Piston is limited, a device, for. B.
  • a piston shaft for introducing a setting element in a setting object and the device is a set energy transferable due to the pressure of gas in the working space, so that the device is operable with combustion force
  • the system in addition to the setting tool at least one additional piston with a different geometry on the work boundary surface than at least one other piston comprises, so that in an arrangement of, in particular only one, the different pistons in the setting tool, the setting device has a different dead space volume at the working space to a different setting energy, especially in cartridges with an identical amount of powder to obtain.
  • Setting device pistons can be arranged with a different geometry at the work boundary surface.
  • a user of the setting tool for this purpose removes a piston from the setting tool, for example by releasing a piston lock and pulling out the piston, and then inserts another piston in the setting tool and optionally closes the piston lock.
  • the ignition of the powder increases the pressure of the gas within the working space, so that acts on the working boundary surface of the piston, the pressure of the gas and thereby acts on the piston a compressive force as setting energy for introducing the setting elements in the setting object.
  • the dead space volume is the volume of the working space before or at the ignition of the cartridge, in particular when the piston is at a stop with a minimum volume of the working space as the dead space volume.
  • the system with the powder-powered setting tool thus comprises, in addition to the setting device with a piston, additional additional pistons with the different geometry on the working boundary surface, so that can be introduced by placing the different pistons in the setting tool, the setting elements with a different setting energy in the setting object, also with an identical amount of powder in the cartridges.
  • the different setting energy can be provided by the setting device by means of a unitary cartridge and only the arrangement of different pistons within the setting device.
  • the pistons have recesses with a different volume at the work boundary surface.
  • the recesses increased the dead space volume and thus also the volume of the working space. If the piston is located at a stop on a connecting bore to the cartridge receptacle, the working space is minimal and the volume of the working space is formed, for example, by the volume of the recess and the volume of the connecting bore.
  • the volume of the recesses on two different pistons differs by at least 20%, 40%, 60%, 100% or 200% and / or the dead space volume of the setting device with the different pistons is at least 20%, 40%, 60%, 100% or 200% makes a difference. Due to the large difference in the volume of the recesses, this also makes it possible to provide large different setting forces for the same amount of powder in the cartridges.
  • the dead space volume is the minimum volume of the working space at a position of the piston with the minimum volume of the working space.
  • the recesses are formed on the piston as a central axial recesses or lateral radial recesses. Lateral recesses serve to increase the dead space volume and possibly a gradual opening of a Abblaskanals, so that the energy reduction per recessed volume unit is increased.
  • a discharge channel at a first end in the working space and a second end of the outflow opens into the environment and a cross-sectional area of the outflow is with a regulating element, in particular a Regulierstatt, changeable, so that no or different amounts of gas from the working space through the outflow channel can be derived as Abblasregultechnik for a different set energy.
  • a regulating element in particular a Regulierstatt, changeable
  • the set energy can be additionally controlled in addition to the different pistons.
  • fine control of the set energy is possible in addition to the coarse control of the set energy with the different pistons with the outflow channel. For fine control of the set energy thus no replacement of the piston of the setting device of the system is required in an advantageous manner.
  • the cartridge receptacle is designed as a conical bore and the cartridge receptacle is connected to a connecting bore with a piston receiving space on the piston guide.
  • the cartridge is arranged gas-tight on the conical bore and by means of a striking element, an igniter can be ignited within the cartridge to ignite the powder.
  • piston receiving space is connected to the piston guide of a separating element having a plurality of openings with a combustion chamber.
  • the separating element is designed as a perforated plate and / or the combustion chamber is formed by the connecting bore and preferably the cartridge receptacle.
  • the diameter of the opening is preferably smaller than the diameter of the grains of the powder within the cartridge or combustion residues of the powder, so that thereby no powder or combustion residues in the working space reaches the piston during ignition of the powder and thereby, for example, a sliding bearing between the piston and the piston guide is not affected by powder or combustion residues.
  • the setting tool of the system comprises a housing, e.g. As plastic and / or metal, for mechanical protection and as an outer covering of the other components of the setting tool.
  • the setting device of the system comprises a waste gas piston recirculation with an exhaust gas recirculation passage and a return piston.
  • the exhaust piston recirculation By means of the exhaust piston recirculation, the piston is returned to the setting object after the ignition of the powder and the turning of the setting element, so that thereby the working space is minimal and preferably the piston rests against a stop.
  • a system described in this patent application is executable with the system and / or the setting element is designed as a nail or a bolt and / or the setting device of the system comprises a magazine for supporting a plurality of setting elements and / or the setting device of the system comprises a control unit and / or the working space is bounded by the working boundary surface of the movable piston and with the piston, the setting energy is transferable to the device.
  • Inventive method for setting a setting element in a setting object in particular with a system described in this patent application, with the steps: setting the setting element in the setting object, z. B. a concrete ceiling in which a fuel is ignited in a cartridge, due to the burning process of the fuel in a working space, the temperature and pressure of the gas is increased in the working space and a set energy of the gas in the working space on a working boundary surface of a piston and this setting energy is transmitted to the setting element, so that due to this setting energy, the setting element is introduced into the setting object, the set energy is controlled and / or regulated, wherein the set energy is controlled and / or regulated by pistons having a different geometry at the working boundary surface in the setting device are arranged so that the setting device has a different dead space volume at the working space.
  • pistons with different recesses are arranged in the setting tool, so that different Dead space volumes of the working space differ by at least 20%, 40%, 60%, 100% or 200%.
  • the dead space volume is the minimum volume of the working space at a corresponding position of the piston with the minimum volume of the working space.
  • the gas is diverted through a bleed passage to reduce the set energy, in particular a controlled different amount of gas is diverted through the bleed passage to obtain a controlled different set energy.
  • a controlled different amount of gas is diverted through the bleed passage to obtain a controlled different set energy.
  • the coarse control of the set energy is effected by the arrangement of the different pistons with the different working boundary surface, so that, for example, during operation with the setting tool by operating a regulating different amounts of gas can be discharged through the discharge channel and thereby a different setting energy can be achieved.
  • the larger the amount of gas discharged through the discharge channel the lower the setting energy and vice versa.
  • a different cartridge is arranged on a cartridge receptacle after each setting of a respective setting element, in particular with a mechanism, the other cartridge, preferably arranged on a cartridge strip.
  • the setting of the setting element is carried out automatically by pressing a trigger and the mechanism is in operative connection with a control unit, so that after setting a setting element automatically another powder-filled cartridge is guided on the cartridge strip to the cartridge holder.
  • FIG. 1 An in Fig. 1 illustrated and with combustion force, namely powder power, operated setting device 1 is used, setting elements 19, for example, nails 20 or bolts, in a setting object 2, for example, a concrete ceiling or a wooden slat to bring or beat.
  • the setting device 1 comprises a housing 3 made of metal and / or plastic.
  • a plurality of nails 20 are stored within a magazine 21 and by means of an automatic feed mechanism (not shown) after hammering a nail 20 automatically another nail 20 to the left of a piston skirt 18 promoted as means 17 for introducing the setting element 19 become.
  • the trigger 22 stands by means of an electrical control line, not shown in Connection with a control unit 25.
  • the trigger 22 is arranged on a handle 23 and the handle 23 is formed by the housing 3.
  • a piston bearing part 10 is arranged made of metal.
  • the multi-part piston bearing part 10 delimits a cylindrical piston guide 5 for sliding bearing of a piston 6 on a radial outer side of the piston 6.
  • the piston 6 is mechanically firmly connected to a piston connecting rod 11 with a return piston 12 and on the return piston 12 is the piston shaft 18 as the device 17th attached to the introduction of the setting element 19.
  • the piston 6, the return piston 7, the piston connecting rod 11 and the piston shaft 18 are coaxial and concentric with each other.
  • a cartridge receptacle 38 is incorporated as a conical bore 39 and the cartridge receptacle 38 is connected by a connecting bore 40 with a piston receiving space 41 within the piston guide 5 as part of a working space 28 in fluid and gas-conducting connection.
  • the working space 28 is thus limited, inter alia, by the piston guide 5 and a working boundary surface 7 of the piston 6, so that the pressure of a gas within the piston receiving space 41 on the working boundary surface 7 applies a compressive force as shown in FIG Fig. 1 to the left and this compressive force causes the setting energy with which the setting elements 19 are introduced into the setting object 2.
  • a perforated plate 26 is arranged as a separating element 24 and the separating element 24 has openings 27.
  • a cartridge strip 16 a plurality of cartridges 15, for example, ten cartridges 15, arranged and in Fig. 2 only three of the ten cartridges 15 are shown.
  • the cartridge 15 forms a sleeve within the powder and an igniter is arranged.
  • a striking element 36 when the trigger 22 is activated by the control unit 25, a striking force is applied to a rear end of the cartridge 15, thereby igniting the detonator and, in the following, also the powder.
  • the openings 27 are smaller than the diameter of the grains of the powder within the cartridge or the Combustion residues of the powder, so that no powder and no combustion residues can enter the piston receiving space 41 on the piston guide 5 as part of the working space 28.
  • the connecting bore 40 between the perforated plate 26 and the cartridge 15 thus forms a combustion chamber 29 for the powder within the cartridge 15.
  • the combustion bore 40 also forms the working space 28 outside the piston guide 5 or outside of the piston receiving space 41, since the space of the connecting bore 40th as a combustion chamber 29 is also used to apply the pressure force on the working boundary surface 7 of the piston 6.
  • the piston 6 is located at the maximum right axial position as shown in FIG Fig. 1 that is, is a right axial end of the piston 6, that is, a work limiting surface 7 of a piston 6, on a right stop 37 of the piston bearing part 10, the volume of the working space 28 is minimal and thus the volume of the dead space.
  • the dead space volume is thus in particular the minimum volume of the working chamber 28 shortly before the ignition of the powder when the piston 6 rests on the stop 37.
  • the volume of the connecting bore 40 can not be changed, however. Only by changing the volume of the piston receiving space 41 with the different pistons 6, the dead space volume is changed as the minimum volume of the working space 28.
  • the in Fig. 1 represented piston 6 has an axial recess 8, so that the volume of the working space 28 and the dead space volume of the setting device 1 is additionally increased by the volume of the axial recess 8.
  • the pistons 6 are shown with different sized axial recesses 8. As a result of the arrangement of the different pistons 6 within the setting device 1, a different setting energy can be transmitted to the setting elements 19.
  • Fig. 3 is the piston 6th shown with a small volume of the recess 8, so that thereby the setting tool 1 has the maximum setting energy.
  • piston 6 has the largest volume at the axial recess 8, thereby characterized a large dead space volume of the setting device 1 is present and thereby the setting elements 19 are introduced with the minimum setting energy in the setting object 2.
  • the piston 6 has an axial recess 8 with a medium volume.
  • the setting tool 1 with only one piston 6 forms a system 4 together with the other different pistons 6.
  • axial recesses 8 have in Fig. 6 to 8 illustrated piston radial recesses 9.
  • the piston 6 of the in Fig. 1 shown right axial position or position on the piston guide 5 moves to the left until the return piston 12 rests against a further stop 37 at the left end of the piston guide 5.
  • the volume of the piston receiving space 41 is increased and thus the volume of the working space 28 is increased.
  • the piston bearing part 10 has a AbgaskolbenschGerman technologicalkanal 13, so that from an axial position of the piston 6, the gas from the working chamber 28 can flow through the exhaust gas recirculation passage 13.
  • the volume of the working chamber 28 increases as well.
  • the gas under pressure flows from the working space 28 into a return space 14 between the piston bearing part 10 and the return piston 12, and thereby can, inter alia, be dimensioned and dimensioned of the piston 6 and the exhaust gas piston return passage 13 after setting the setting element 19 of the piston 6 back into the in Fig. 1 shown axial position to be moved back.
  • the piston bearing part 10 also has a discharge channel 30.
  • a first end 31 of the outflow channel 30 opens into the working space 28 and a second end 32 of the outflow channel 30 opens into the environment.
  • a regulating element 33 designed as a regulating pin 34 has an external thread and by means of an internal thread on the piston bearing part 10 and an outside regulating wheel 35, the regulating pin 34 can be moved in the axial direction so that the discharge channel 30 can be opened or closed completely or partially.
  • the first end 31 of the outflow channel 30 is opened, thereby characterized in an at least partially open outflow channel 30 due to the position of the regulating pin 34 gas from the working space 28 can flow.
  • the regulating pin 34 By means of the regulating pin 34, a fine control of the setting energy can thus be additionally executed. The more gas is discharged from the working space 28 through the discharge channel 30 due to the available flow cross-sectional area of the discharge channel 30 on the regulating pin 34, the lower the setting energy of the setting device 1 and vice versa.
  • the pistons 6 have at the working boundary surface 7 recesses 8, 9 with a different volume.
  • the dead space volume of the setting device 1 can be substantially changed by the arrangement of the different pistons 6 in the setting tool 1 and thereby also the setting energy, since the larger the dead space volume of the setting device 1, the smaller the setting energy and vice versa.
  • the required different setting forces for different setting articles 2 can thus be provided with cartridge strips 16 with cartridges 15 with an identical amount of powder.
  • the user of the system 4 according to the invention thus requires only one unit cartridge 15 or unit cartridge strip 16 with an identical amount of powder in the cartridges 15 and thus no longer has to hold different cartridge strips 16. Only by the different pistons 6 can thus be significantly changed the set energy of the setting device 1.
  • the fine control of the setting energy by means of the regulating pin 34 on the setting tool. 1

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP13197908.0A 2013-12-18 2013-12-18 Appareil de pose Withdrawn EP2886256A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13197908.0A EP2886256A1 (fr) 2013-12-18 2013-12-18 Appareil de pose
PCT/EP2014/076984 WO2015091090A1 (fr) 2013-12-18 2014-12-09 Outil de scellement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13197908.0A EP2886256A1 (fr) 2013-12-18 2013-12-18 Appareil de pose

Publications (1)

Publication Number Publication Date
EP2886256A1 true EP2886256A1 (fr) 2015-06-24

Family

ID=49816866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13197908.0A Withdrawn EP2886256A1 (fr) 2013-12-18 2013-12-18 Appareil de pose

Country Status (2)

Country Link
EP (1) EP2886256A1 (fr)
WO (1) WO2015091090A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2037378A1 (de) * 1969-04-15 1971-02-11 Forester (Ireland) Ltd Dublin Nage! Pistole
EP0579575A1 (fr) * 1992-07-13 1994-01-19 HILTI Aktiengesellschaft Outil de scellement actionné par poudre
US5657919A (en) * 1991-09-03 1997-08-19 Masterset Inc. Modular fastener driving tool with noise reducing structure
DE19983546T1 (de) 1998-09-10 2001-08-02 Senco Products Brennkammerkonstruktion für Treibmittelladungen und Leistungseinstellmittel
EP1308246A1 (fr) * 2001-10-30 2003-05-07 Cetram Pty Limited Outil d'enfoncement d'éléments de fixation
DE10164202A1 (de) * 2001-12-27 2003-07-17 Hilti Ag Kolben für Setzgeräte
EP0972615B1 (fr) 1998-07-13 2003-10-22 HILTI Aktiengesellschaft Outil de scellement actionné par poudre

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2037378A1 (de) * 1969-04-15 1971-02-11 Forester (Ireland) Ltd Dublin Nage! Pistole
US5657919A (en) * 1991-09-03 1997-08-19 Masterset Inc. Modular fastener driving tool with noise reducing structure
EP0579575A1 (fr) * 1992-07-13 1994-01-19 HILTI Aktiengesellschaft Outil de scellement actionné par poudre
EP0972615B1 (fr) 1998-07-13 2003-10-22 HILTI Aktiengesellschaft Outil de scellement actionné par poudre
DE19983546T1 (de) 1998-09-10 2001-08-02 Senco Products Brennkammerkonstruktion für Treibmittelladungen und Leistungseinstellmittel
EP1308246A1 (fr) * 2001-10-30 2003-05-07 Cetram Pty Limited Outil d'enfoncement d'éléments de fixation
DE10164202A1 (de) * 2001-12-27 2003-07-17 Hilti Ag Kolben für Setzgeräte

Also Published As

Publication number Publication date
WO2015091090A1 (fr) 2015-06-25

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