EP2524772A2 - Appareil de fixation pour boulons et procédé de fonctionnement d'un tel appareil - Google Patents

Appareil de fixation pour boulons et procédé de fonctionnement d'un tel appareil Download PDF

Info

Publication number
EP2524772A2
EP2524772A2 EP12164519A EP12164519A EP2524772A2 EP 2524772 A2 EP2524772 A2 EP 2524772A2 EP 12164519 A EP12164519 A EP 12164519A EP 12164519 A EP12164519 A EP 12164519A EP 2524772 A2 EP2524772 A2 EP 2524772A2
Authority
EP
European Patent Office
Prior art keywords
counterforce
bolt
local maximum
trigger
force
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Withdrawn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
EP12164519A
Other languages
German (de)
English (en)
Other versions
EP2524772A3 (fr
Inventor
Ulrich Rosenbaum
Dierk Tille
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
Publication of EP2524772A2 publication Critical patent/EP2524772A2/fr
Publication of EP2524772A3 publication Critical patent/EP2524772A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • B25C1/008—Safety devices

Definitions

  • the invention relates to a bolt setting device for setting fasteners in a ground, with a trigger that is movable to trigger a setting operation by applying a force against a counter force.
  • the invention further relates to a method for operating such a bolt setting device.
  • the object of the invention is to improve the operation of a bolt gun according to the preamble of claim 1 on.
  • the object is achieved in a bolt setting device for setting fasteners in a substrate, with a trigger that is movable to trigger a setting operation by applying a force against a counter force, solved in that the trigger is assigned a counter-force generating device with a drag force path which has a local maximum.
  • the trigger is a trigger or trigger of the bolt gun.
  • the trigger is actuated, for example, a bolt is set.
  • the bolt gun is pressed against a substrate into which the bolt is to be placed.
  • the actual setting process is by the Pressing, ie pulling or pressing, triggers the trigger. Due to the local maximum in the counter-force path, a counter-force peak is provided, which reliably prevents an unintentional triggering of a setting process.
  • the setting quality can be increased by the counter-force path according to the invention.
  • a preferred embodiment of the bolt setting tool is characterized in that the counterforce increases linearly before and / or after the local maximum.
  • the counterforce increases when applying an actuating force to the trigger preferably from zero steadily to the local maximum. Thereafter, the counterforce preferably abruptly drops to a low value. From this low value, the counterforce then preferably increases again continuously linear.
  • a further preferred embodiment of the bolt-firing device is characterized in that the counterforce to the local maximum has a local minimum. The transition from the local maximum to the local minimum occurs abruptly or abruptly, preferably by a snap spring effect or crackpot effect.
  • a further preferred exemplary embodiment of the bolt setting tool is characterized in that the counterforce increases more steeply before the local maximum than after the local maximum or the local minimum.
  • the counterforce preferably increases significantly steeper before the local maximum than after the local maximum or after the local minimum.
  • a further preferred embodiment of the bolt-firing device is characterized in that the counterforce remains smaller after the local maximum up to a path end than at the local maximum. At the end of travel, the counterforce preferably has a final value that is less than half of the local maximum.
  • a further preferred embodiment of the bolt setting device is characterized in that the local maximum is arranged in front of at least one way mark, upon reaching a defined function of the bolt setting device is triggered.
  • the local maximum is preferably arranged in front of several way marks, upon reaching each of which a defined function of the bolt setting device is triggered.
  • the trigger is preferably further moved with a relatively large actuation force, which was needed to overcome the local counterforce maximum. This makes the trigger particularly advantageous fast moved to the end of the path, whereby all defined functions of the bolt gun safely triggered.
  • a further preferred exemplary embodiment of the bolt setting tool is characterized in that the local maximum is arranged in front of a route mark, upon the reaching of which a setting process is triggered. Due to the counter-force path according to the invention, a delayed escape of the bolt from the setting tool can be prevented.
  • a further preferred exemplary embodiment of the bolt-setting tool is characterized in that the counter-force generating device comprises a counterforce spring.
  • the counterforce spring is preferably similar or designed as a snap frog spring, as it is known as a toy.
  • a snap frog spring is formed for example from a strip of spring steel, which is shaped or shaped so that it suddenly abruptly jumps when applying a force, with a cracking noise occurs.
  • the counterforce spring is designed as a leaf spring with a curvature.
  • an abrupt change, in particular an abrupt, steady decrease, of the counterforce caused by the spring is achieved from a local counter force maximum to a local counterforce minimum when an actuating force is applied.
  • a further preferred embodiment of the bolt setting tool is characterized in that the counterforce spring has two bearing points and a force introduction point.
  • the force introduction point is preferably arranged substantially centrally between the two bearing points at the ends of the leaf spring.
  • An alternative embodiment of the bolt setting tool is characterized in that the counterforce spring has exactly one bearing point and a force introduction point.
  • the above object is alternatively or additionally achieved in that when applying a force on the trigger a counter-force peak must be overcome before a setting process is triggered.
  • the counter-force peak corresponds to the local maximum in the counter-force-path curve and is therefore also referred to as the counterforce maximum.
  • a user After overcoming the force peak, a user automatically pulls or pushes the trigger through to the end of travel. This ensures that all defined functions are triggered within a short time.
  • the bolt setting device 1 comprises a housing 2 with a cylinder 3 and a handle 4. On the handle 4, the bolt setting device 1 for driving a fastener can be tacked, which emerges from a bolt guide 6 at a bolt setting end 5.
  • a substrate energy For driving the fasteners into a substrate energy is required, which can be provided for example in a gas cartridge inside the bolt gun.
  • the gas cartridge can be connected via a metering valve with a combustion chamber in a combustion chamber sleeve 8.
  • a combustion chamber In the combustion chamber is gas from the gas cartridge mixed with air to form a combustible mixture which is ignited to provide the energy needed to drive the bolt into the ground.
  • the bolt setting device 1 Before a bolt setting operation, the bolt setting device 1 must be pressed against the ground in order to be put into a setting ready state.
  • a pressing rod 10 When pressing the bolt-firing device 1, a pressing rod 10 is moved against the biasing force of a compression spring 12 in the bolt setting device 1 in until the bolt-setting 5 abuts flush with the ground.
  • the trigger 15 cooperates with a switching device 18, which transmits, for example, a signal for setting a bolt to a controller, which in turn triggers the ignition of the ignitable mixture in the combustion chamber in the combustion chamber sleeve 8.
  • the trigger 15 can have both controlling and signaling functions.
  • the counter-force generating device 20 preferably comprises an opposing force spring, as in the FIGS. 5 to 7 is shown.
  • the counterforce spring preferably has a drag force path, as in FIG. 4 is shown.
  • a bracket 24 is hinged, which is guided in a specially trained storage 25 in a housing wall of the housing 2 in the handle 4 of the bolt setting device 1.
  • a specially trained storage 25 in a housing wall of the housing 2 in the handle 4 of the bolt setting device 1.
  • relaxed device state of the bracket 24 is located on the combustion chamber sleeve 8, whereby he blocked in combination with its storage 25, the actuation of the trigger 15.
  • the bracket 24 and thus the trigger 15 is released from the combustion chamber sleeve 8.
  • FIG. 3 it can be seen that when pulling the released trigger 15, the switching device 18 is actuated, so that a signal is generated.
  • the bracket 24 due to its bearing 25 performs a pivoting movement on a shoulder or in a concave geometry of the combustion chamber sleeve 8, so that it is blocked in the axial direction by the bracket 24.
  • the trigger 15 it is advantageous for the trigger 15 to travel as far as possible between the individual functions in a controlling and / or signaling manner. This ensures a desired sequence of functions. In addition, the influence of part tolerances is minimized. At a slow set frequency, the bolt gun is also insensitive to different user behavior.
  • a large actuation path can increase the impact of user behavior. It may happen, for example, that the bolt setting device 1 is already lifted off the ground again before the trigger 15 is fully pulled through. Due to the inertia of the bolt setting device remains after lifting off the ground briefly in the pressed state, so that the trigger 15 can be pulled. Then it can happen that a bolt emerges from the bolt setting tool late, which leads to a bad setting quality, since the bolt guide 6, which guides the bolt, is no longer connected to the ground.
  • the counter-force generating device 20 has a special counterforce-travel curve, which in FIG. 4 is represented by a characteristic curve 30 in a Cartesian coordinate diagram.
  • the Cartesian coordinate diagram comprises an x-axis 31 and a y-axis 32.
  • the counterforce generated by the counterforce generating device 20 is plotted in Newtons.
  • the associated path of the trigger 15 is plotted in millimeters.
  • the characteristic curve 30 of the counter-force generating device 20 initially rises from zero to a local maximum 34.
  • the local maximum corresponds to a counter-force peak, which gives the trigger 15 a clear pressure point behavior.
  • the counter-force generating device 20 according to the invention is designed so that the counterforce drops abruptly or abruptly to a local minimum 35 after the local maximum 34. After the local minimum 35, the characteristic 30 increases linearly, but with a significantly lower slope than before the local maximum 34.
  • Another advantage is that the user gets a clear tactile feedback about the fact that he has actuated the trigger 15. So he can better see when the bolt gun triggers. This is especially helpful when a very precise setting point is required. The user can, as long as he aims with the bolt setting end 5, leave a finger on the trigger 15, without fear that he overcomes the counterforce maximum with a relatively low contact force and triggers an unwanted setting.
  • the counterforce spring 40 is shown in different views.
  • the counterforce spring 40 is designed as a curved leaf spring, which is mounted at two bearing points 41, 42 at their ends in the handle of the bolt setting device. Due to the curved shape of the leaf spring 40 creates a cracking frog effect, the user on the first millimeter of the deflection of the leaf spring a force peak in the form of the local maximum 34 in FIG. 4 must overcome. After the local maximum 34, the opposing force exerted by the leaf spring 40 rapidly drops to the local minimum 35 and remains low for the remainder of the actuation path. By an arrow 45 is in FIG. 7 indicated that the force is applied by the trigger 15 approximately in the middle on the convex side of the curvature of the leaf spring 40.
  • FIG. 8 an embodiment of a bolt setting device 51 is shown in perspective with the housing open.
  • a handle 54 of the bolt setting device 51 is a counterforce spring 40, as shown in the FIGS. 5 to 7 is shown between a trigger 55, the trigger 15 in the FIGS. 1 to 3 corresponds, and a switching device 58 is clamped, the switching device 18 in the FIGS. 1 to 3 equivalent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP12164519.6A 2011-05-20 2012-04-18 Appareil de fixation pour boulons et procédé de fonctionnement d'un tel appareil Withdrawn EP2524772A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011076158A DE102011076158B4 (de) 2011-05-20 2011-05-20 Bolzengerät und Verfahren zum Betreiben eines Bolzensetzgeräts

Publications (2)

Publication Number Publication Date
EP2524772A2 true EP2524772A2 (fr) 2012-11-21
EP2524772A3 EP2524772A3 (fr) 2013-04-10

Family

ID=45977270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12164519.6A Withdrawn EP2524772A3 (fr) 2011-05-20 2012-04-18 Appareil de fixation pour boulons et procédé de fonctionnement d'un tel appareil

Country Status (8)

Country Link
US (1) US20120292365A1 (fr)
EP (1) EP2524772A3 (fr)
JP (1) JP2012240195A (fr)
CN (1) CN102785220A (fr)
AU (1) AU2012202799A1 (fr)
CA (1) CA2775850A1 (fr)
DE (1) DE102011076158B4 (fr)
TW (1) TW201304914A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6720634B2 (ja) * 2016-03-29 2020-07-08 マックス株式会社 手持ち工具

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005000032A1 (de) 2005-04-12 2006-10-19 Hilti Ag Brennkraftbetriebenes Setzgerät

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2324798A (en) * 1940-05-01 1943-07-20 Mu Switch Corp Switch
US2881292A (en) * 1957-11-29 1959-04-07 Pass & Seymour Inc Tool trigger switch
DE1923911B2 (de) * 1969-05-10 1971-08-05 Tornado Gmbh, 4032 Lintorf Brennkraftbolzensetzer der Schubkolbenbauart
US3676627A (en) * 1971-04-20 1972-07-11 Mc Graw Edison Co Switch mechanism with unitary biasing, contact, and detent spring
US4667119A (en) * 1984-07-30 1987-05-19 Holmes Zealy M Trigger switch
US5197646A (en) * 1992-03-09 1993-03-30 Illinois Tool Works Inc. Combustion-powered tool assembly
CZ2272U1 (cs) * 1993-06-11 1994-08-05 Josef Wihan Nýtovací nástroj
DE19954740B4 (de) * 1999-11-12 2005-10-20 Jung Gmbh Albrecht Schaltelement mit taktiler Rückmeldung für elektrische Schalter und Taster
DE10325922A1 (de) * 2003-06-07 2005-01-05 Hilti Ag Geräteschalter für elektrische Handwerkzeuge

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005000032A1 (de) 2005-04-12 2006-10-19 Hilti Ag Brennkraftbetriebenes Setzgerät

Also Published As

Publication number Publication date
US20120292365A1 (en) 2012-11-22
TW201304914A (zh) 2013-02-01
DE102011076158A1 (de) 2012-11-22
EP2524772A3 (fr) 2013-04-10
DE102011076158B4 (de) 2013-01-03
AU2012202799A1 (en) 2012-12-06
JP2012240195A (ja) 2012-12-10
CA2775850A1 (fr) 2012-11-20
CN102785220A (zh) 2012-11-21

Similar Documents

Publication Publication Date Title
EP2767365B1 (fr) Cloueur à air comprimé avec déclencheur manuel et capteur de contact
EP0326639B1 (fr) Commande de soupape pour outil d'enfoncement pneumatique
DE1703110C3 (de) Druckluftwerkzeug, insbesondere Druckluftnagler
EP3478452B1 (fr) Procédé servant à faire fonctionner un appareil portatif à fonctionnement hydraulique, ainsi qu'appareil portatif à fonctionnement hydraulique
EP1319475A2 (fr) Méthode pour operer un outil de sertissage hydraulique et outil de sertissage hydraulique
EP3446833A1 (fr) Cloueur à air comprimé pourvu de dispositif de soupape de sécurité
EP3666469B1 (fr) Cloueur pneumatique doté d'un dispositif de sécurité
EP3509797B1 (fr) Cloueuse pneumatique à mode automatique et comprenant un capteur de contact
DE2339162B1 (de) Rastvorrichtung für Druckluftnagler zum Abfangen und Halten des Schlagkolbens
EP3471921B1 (fr) Cloueur a air comprime comprenant un declenchement sequentiel et par contact
EP3703911A1 (fr) Cloueuse pneumatique à ensemble soupape de sécurité
EP1633418B1 (fr) Dispositif d'entrainement pour avancer un element de deplacement en avant
DE102011076158B4 (de) Bolzengerät und Verfahren zum Betreiben eines Bolzensetzgeräts
EP3141347A1 (fr) Appareil d'enfoncement entraine par combustible dote d'une articulation de soupape
EP3697573B1 (fr) Clouseuse à air comprimé pourvue d'un actionneur de sécurité
DE102012215126A1 (de) Handgeführtes Arbeitsgerät
EP0995515B1 (fr) Dispositif d'assemblage mécanique
DE2736461C2 (fr)
DE19804456C1 (de) Auslösegesichertes Eintreibgerät für Befestigungsmittel
DE1924290A1 (de) Spannabzug
CH662004A5 (de) Elektrischer kompressionsschalter.
EP3129189B1 (fr) Appareil de pose manuel et semi-fixe
EP2457699B1 (fr) Appareil d'enfoncement
DE1205173B (de) Pneumatischer Zeitschalter
CH339790A (de) Pneumatische Betätigungsvorrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: H01H 9/06 20060101ALI20130307BHEP

Ipc: B25F 5/00 20060101ALI20130307BHEP

Ipc: B25C 1/08 20060101AFI20130307BHEP

Ipc: H01H 13/36 20060101ALI20130307BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20131011