EP3129190A1 - Verfahren zum betreiben eines handgeführten oder halbstationären setzgeräts - Google Patents
Verfahren zum betreiben eines handgeführten oder halbstationären setzgerätsInfo
- Publication number
- EP3129190A1 EP3129190A1 EP15741876.5A EP15741876A EP3129190A1 EP 3129190 A1 EP3129190 A1 EP 3129190A1 EP 15741876 A EP15741876 A EP 15741876A EP 3129190 A1 EP3129190 A1 EP 3129190A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- semi
- hand
- piston
- setting tool
- working piston
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 18
- 238000002485 combustion reaction Methods 0.000 claims abstract description 31
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 230000001133 acceleration Effects 0.000 claims description 12
- 239000002912 waste gas Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 22
- 239000000446 fuel Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
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
- B25C1/18—Details and accessories, e.g. splinter guards, spall minimisers
-
- 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
Definitions
- the invention relates to a method for operating a hand-held or semi-stationary setting tool for driving fasteners by means of a working piston in a substrate, with a Vorsharm adopted at an outlet end.
- the invention also relates to such a hand-held or semi-stationary setting tool.
- the object of the invention is to simplify the operation of a hand-held or semi-stationary setting tool for driving fasteners by means of a working piston in a substrate, with a pre-attachment at an outlet end.
- the object is in a method for operating a hand-held or semi-stationary setting tool for driving fasteners by means of a working piston in a substrate, with a Vorsatzz adopted at an outlet end, achieved in that in a setting process from a combustion chamber exiting exhaust gas is used to bias the attachment means against the ground.
- the working piston is accelerated over a defined distance, for example by gas expanding in the combustion chamber, in order to drive a fastening element into the ground.
- the exhaust gas still contained in the combustion chamber, which is subjected to a residual pressure, blown into the environment in conventional setting tools.
- the exhaust gas exiting the combustion chamber is used to bias the attachment against the ground.
- a preferred embodiment of the method is characterized in that the combustion chamber is connected to an additional space as soon as the working piston has traveled an acceleration path.
- the defined distance over which the power piston is accelerated to drive in a fastener is also referred to as the acceleration path.
- a hand-held or semi-stationary setting tool for driving fasteners by means of a working piston in a substrate, with a Vorsatzzes founded at an outlet end, wherein the setting device is operated according to a method described above
- the above object is alternatively or additionally achieved in that the additional space has an overflow, which is released from the working piston at the end of the acceleration path.
- the hand-held or semi-stationary setting tool is operated, for example, with fuel gas.
- the energy required to drive in the fastening elements is transmitted to the fastening elements via the working piston.
- only exiting the combustion chamber exhaust gas is used to bias the attachment device against the ground. This has the advantage that when covering the acceleration path, that is, when accelerating the working piston, no energy must be removed from the combustion chamber for the attachment device.
- a further preferred embodiment of the method is characterized in that the additional space is limited by a pressurizable surface with the front-end device is coupled. About the overflow opening the surface mentioned above is acted upon by the residual pressure of the exhaust gas still contained in the combustion chamber after the acceleration of the working piston.
- a further preferred embodiment of the method is characterized in that the pressurizable surface is formed on an auxiliary piston which is coupled to the attachment means.
- the auxiliary piston acting from the residual pressure of the exhaust gas on the surface pressure force can be transmitted in a simple manner to the front attachment.
- a further preferred embodiment of the method is characterized in that the additional piston is designed as an annular piston.
- the annular piston is preferably coaxial with the working piston, but independently of this, guided back and forth.
- a further preferred embodiment of the method is characterized in that the additional piston is coupled via an elastic intermediate element with the attachment means.
- the elastic intermediate element comprises, for example, a spring device, by means of which the profile of the force transmitted by the additional piston to the spring device can be adapted. As a result, it is possible, for example, to dose and / or delay the pretensioning force of the pretensioning device.
- a further preferred embodiment of the method is characterized in that the elastic intermediate element is designed and arranged so that a maximum biasing force is applied to the front-attachment device when a driving operation begins.
- the elastic intermediate element is designed and arranged so that a maximum biasing force is applied to the front-attachment device when a driving operation begins.
- a further preferred embodiment of the method is characterized in that the additional space is designed as an annular space.
- the annular space is preferably arranged radially outside a piston guide, in which the working piston is guided to and fro movable.
- the invention further relates to an attachment device for a previously described hand-held or semi-stationary setting tool.
- the attachment means with the additional piston and optionally with the elastic intermediate element is separately tradable.
- the setting tool according to the invention is preferably a setting tool for setting fastening elements, such as bolts. Therefore, such a setting device is also referred to as a bolt setting device.
- the setting device is operated, for example, with gas as fuel.
- the gas is provided, for example, in a gas can or gas cartridge, which is inserted into the setting tool.
- a setting device is shown simplified in longitudinal section.
- a setting device 1 is shown in a greatly simplified longitudinal section.
- the setting device 1 comprises an unspecified housing with a handle on which the setting tool 1 for driving a fastener 18 in a substrate 3 can be tacked.
- the fastening element 18 emerges from the setting tool 1 at a setting end or outlet end 5.
- the fasteners 18 used are preferably provided via a device-internal magazine, which is mounted in the vicinity of the outlet end or setting end 5 of the setting device 1. From the magazine, the fasteners 18, preferably individually, automatically removed and provided at the setting end 5.
- the energy required for driving the fastening elements 18 in the substrate 3 is provided, for example, in a fuel container in the interior of the setting device 1.
- the fuel in the fuel container is, for example, LPG. Therefore, the fuel container is also referred to as a gas can or gas cartridge.
- the fuel tank can be connected via an adjustable or controllable metering device with a combustion chamber 22, which is also referred to as a combustion chamber.
- the metering device is preferably designed as a metering valve.
- fuel, ie gas, from the fuel container is mixed with air to form a combustible mixture which is ignited by an ignition device in order to drive a fastening element 18, such as a bolt or a nail, into the substrate 3.
- the energy required for driving is transmitted to the fastening element 18 at the setting end 5 when a trigger or trigger of the setting device 1 is actuated via a working piston 8 from the ignited mixture in the combustion chamber.
- the working piston 8 comprises a base body 9, from which a plunger 10 starts.
- the setting device 1 further comprises a pre-attachment device 14, which is placed on the substrate 3 before the driving in of a fastening element 18.
- the attachment device 14 comprises a front plate 15, which is brought to the substrate 3 for conditioning.
- the front plate 15 may be integrally formed with a guide body for the fastener 18.
- the guide body can be designed for example as a guide sleeve, which is integrally connected to the attachment plate 15. Due to the ignited mixture in the combustion chamber 22 of the working piston 8 is accelerated. The distance covered during acceleration of the working piston 8 is also referred to as the acceleration path.
- the energy required to bias or press the header 14 against the ground 3 is provided by residual pressure applied exhaust gas, which after overcoming the Acceleration path of the working piston 8 is still contained in the combustion chamber 22.
- This exhaust gas contains a relatively high proportion of energy that can be used in whole or in part to press the attachment 14 against the ground 3.
- the combustion chamber 22 is bounded in the radial direction by a combustion chamber wall 24 that is substantially circular-cylinder-jacket-shaped. In the axial direction, the combustion chamber 22 is limited at its end remote from the working piston 8 by a combustion chamber cover 25.
- the combustion chamber wall 24 is connected in one piece via a diameter step 26 to a piston guide body 28.
- the piston guide body 28 also has the shape of a circular cylinder jacket, but has a smaller diameter than the combustion chamber wall 24.
- the piston guide body 28 forms at its bottom 3 facing the end of a stop 29, which is associated with the buffer means 30.
- the stop 29 with the buffer device 30 limits the movement of the working piston 8 in the direction of setting 5. In the opposite direction, the path of the working piston 8 is limited by a stop element 32 which is mounted in the region of the diameter step 26 on the piston guide body 28.
- the voltage applied to the stop member 32 working piston 48 is indicated by dashed lines with the base body 49 and the plunger 50 in the accompanying figure.
- the dashed representation of the working piston 48 corresponds to its rest position, for example, before the initiation of a driving operation.
- an additional wall 35 is arranged.
- the additional wall 35 has substantially the shape of a circular cylinder jacket, which is arranged coaxially with the piston guide body 28.
- the additional wall 35 bounded with the piston guide body 28 and the diameter step 26 designed as an annulus additional space 36th
- the additional space 36 can be connected via an overflow opening 38 with the combustion chamber 22.
- the connection between the additional space 36 and the combustion chamber 22 through the overflow opening 38 is controlled valve-like manner by the working piston 48 in a simple manner.
- the additional space 36 is further limited by a surface 40 which is formed on an additional piston 45.
- the additional piston 45 is designed as an annular piston and in the additional space 36 designed as an annular space can be moved back and forth.
- the term movable back and forth refers to a dash-dotted line indicated longitudinal axis 46 of the setting tool. 1
- the additional piston 45 is coupled via the elastic intermediate element 20 with the attachment device 14. During operation of the setting device 1, the additional piston 45 can be acted upon via the overflow opening 38 with the residual pressure from the combustion chamber 22, as soon as the working piston 8 has moved with its base body 9 in the direction of setting 5 at the overflow 38. In this case, the working piston 8 functions like a slide valve.
- the combustion takes place in the combustion chamber 22.
- the gas pressure occurring during the combustion accelerates the working piston 48.
- the working body 8 passes over the overflow opening 38 with the main body 9 and a part of the exhaust gas then acted upon with a residual pressure flows into the additional space 36.
- There the residual gas pressure accelerates the auxiliary piston 45.
- the acceleration of the additional piston 45 is transmitted via the elastic intermediate element 20 to the attachment plate 15 of the attachment device 14.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14163966.6A EP2929985A1 (de) | 2014-04-09 | 2014-04-09 | Verfahren zum Betreiben eines handgeführten oder halbstationären Setzgeräts und entsprechendes Setzgerät |
| PCT/EP2015/057020 WO2015155063A1 (de) | 2014-04-09 | 2015-03-31 | Verfahren zum betreiben eines handgeführten oder halbstationären setzgeräts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3129190A1 true EP3129190A1 (de) | 2017-02-15 |
| EP3129190B1 EP3129190B1 (de) | 2019-01-30 |
Family
ID=50442399
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14163966.6A Withdrawn EP2929985A1 (de) | 2014-04-09 | 2014-04-09 | Verfahren zum Betreiben eines handgeführten oder halbstationären Setzgeräts und entsprechendes Setzgerät |
| EP15741876.5A Not-in-force EP3129190B1 (de) | 2014-04-09 | 2015-03-31 | Verfahren zum betreiben eines handgeführten oder halbstationären setzgeräts und entsprechendes setzgerät |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14163966.6A Withdrawn EP2929985A1 (de) | 2014-04-09 | 2014-04-09 | Verfahren zum Betreiben eines handgeführten oder halbstationären Setzgeräts und entsprechendes Setzgerät |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20170106515A1 (de) |
| EP (2) | EP2929985A1 (de) |
| WO (1) | WO2015155063A1 (de) |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL85367C (de) * | 1952-10-25 | |||
| US3046557A (en) * | 1954-05-17 | 1962-07-31 | Omark Industries Inc | Explosively actuated tool |
| US3029434A (en) * | 1954-06-03 | 1962-04-17 | Olin Mathieson | Powder-actuated tools |
| US2957175A (en) * | 1955-08-29 | 1960-10-25 | Olin Mathieson | Receptor for positioning discs and the like at the muzzle of the barrel of explosively actuated tools |
| DE1603777B2 (de) * | 1966-08-25 | 1971-12-09 | Fischer, Artur, 7241 Tumlingen | Schubkolbenverlängerung für Brennkraftbolzensetzer |
| DE2221374C2 (de) * | 1972-05-02 | 1983-02-10 | Hilti AG, 9494 Schaan | Pulverkraftbetriebenes Setzgerät |
| DE2424774C3 (de) * | 1974-05-22 | 1982-03-11 | Poly Patent AG, Schaan | Zündvorrichtung, insbesondere für einen Brennkraftbolzensetzer |
| US4078710A (en) * | 1974-05-23 | 1978-03-14 | Poly Patent Aktiengesellschaft | Tools for driving nails and the like |
| DE2548014C2 (de) * | 1975-10-27 | 1984-01-12 | Hilti AG, 9494 Schaan | Pulverkraftbetriebenes Setzgerät mit Leistungsregulierung |
| DE2850273A1 (de) | 1978-11-20 | 1980-05-29 | Hilti Ag | Pulverkraftbetriebenes bolzensetzgeraet |
| US4286496A (en) * | 1979-10-12 | 1981-09-01 | Olin Corporation | Fastener guidance and retention tip member |
| US4684050A (en) * | 1985-10-07 | 1987-08-04 | Fernando Masas | Powder actuated fastening system and fastener assembly for use therewith |
| DE4422725A1 (de) * | 1994-06-29 | 1996-01-04 | Reich Maschf Gmbh Karl | Eintreibgerät für Befestigungsmittel |
| DE19755730A1 (de) * | 1997-12-15 | 1999-06-17 | Hilti Ag | Bolzensetzgerät |
| US6145723A (en) * | 1998-01-27 | 2000-11-14 | Illinois Tool Works Inc. | Workpiece-contacting probe for fastener-driving tool for fastening dimpled membranes to foundation walls via fasteners and polymeric plugs |
| FR2786420B1 (fr) * | 1998-11-30 | 2001-01-05 | Prospection & Inventions | Procede de pose d'une embase de fixation de piece et outil de fixation pour la mise en oeuvre du procede |
| DE10048311B4 (de) * | 2000-09-29 | 2012-03-01 | Hilti Aktiengesellschaft | Setzgerät |
| DE10253996A1 (de) * | 2002-11-19 | 2004-06-03 | Hilti Ag | Halteelement für Leitungsstränge, wie Rohrleitungen, Kabelstränge oder Kabelführungen |
| US7004704B1 (en) * | 2004-09-30 | 2006-02-28 | Illinois Tool Works Inc. | Flute positioner |
| DE102005000113B4 (de) * | 2005-09-13 | 2014-03-27 | Hilti Aktiengesellschaft | Setzgerät |
-
2014
- 2014-04-09 EP EP14163966.6A patent/EP2929985A1/de not_active Withdrawn
-
2015
- 2015-03-31 US US15/128,483 patent/US20170106515A1/en not_active Abandoned
- 2015-03-31 WO PCT/EP2015/057020 patent/WO2015155063A1/de not_active Ceased
- 2015-03-31 EP EP15741876.5A patent/EP3129190B1/de not_active Not-in-force
Also Published As
| Publication number | Publication date |
|---|---|
| US20170106515A1 (en) | 2017-04-20 |
| EP3129190B1 (de) | 2019-01-30 |
| EP2929985A1 (de) | 2015-10-14 |
| WO2015155063A1 (de) | 2015-10-15 |
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