EP2566663B1 - Adjusting system for a tool - Google Patents

Adjusting system for a tool Download PDF

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Publication number
EP2566663B1
EP2566663B1 EP11715421.1A EP11715421A EP2566663B1 EP 2566663 B1 EP2566663 B1 EP 2566663B1 EP 11715421 A EP11715421 A EP 11715421A EP 2566663 B1 EP2566663 B1 EP 2566663B1
Authority
EP
European Patent Office
Prior art keywords
screw
housing
tool
adjustment
lever
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.)
Not-in-force
Application number
EP11715421.1A
Other languages
German (de)
French (fr)
Other versions
EP2566663A1 (en
Inventor
Hans-Joachim Pohl
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.)
Gedore Holding GmbH
Original Assignee
Gedore-Werkzeugfabrik & Co KG GmbH
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
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Publication of EP2566663A1 publication Critical patent/EP2566663A1/en
Application granted granted Critical
Publication of EP2566663B1 publication Critical patent/EP2566663B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1425—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by electrical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/141—Mechanical overload release couplings

Definitions

  • the invention relates to a tool, in particular screwing, with a handle, connected to the housing, opening or closing a screw working part and a clutch having an adjustment, the working part upon reaching an adjustable over the adjustment work value, such as a torque of Uncoupled screw connection from the housing and / or signals the achievement of adjustable over the adjustment work value.
  • an adjustable over the adjustment work value such as a torque of Uncoupled screw connection from the housing and / or signals the achievement of adjustable over the adjustment work value.
  • Such tools are known from the prior art and these are in particular so-called torque screwdriving tools, which have a handle and a working part, which working part usually consists of a rotatably mounted in a head square, which depends on the operation, namely the opening or closing of a screw can be blocked.
  • torque screwdriving tools which have a handle and a working part, which working part usually consists of a rotatably mounted in a head square, which depends on the operation, namely the opening or closing of a screw can be blocked.
  • such tools have a device that limits the tightening torque of the tool as a function of the permissible tightening torque of the screw. With this configuration, the tool can be adjusted to the allowable torque of the screw, so that too large a tightening torque is avoided.
  • Such procedures are known in the assembly of light-alloy wheels on motor vehicles.
  • Such a generic tool is from the FR 2 876 053 A3 known.
  • a problem of such tools is that the torques are adjustable and that the adjustment of such torques does not work permanently error-free, so that such tools must be calibrated from time to time and possibly adjusted.
  • the invention has the object , a generic tool in such a way that an accurate adjustment of the torque value or torque is maintained over a longer period of high security.
  • the tensioning system preferably consists of a threaded plate which passes through the adjusting screw and a clamping screw by means of which the threaded plate can be moved relative to the longitudinal axis of the adjusting screw.
  • adjusting screw and clamping screw are arranged slightly different from running parallel to each other, so that a clamping of the threaded plate between the adjusting screw and the clamping screw is possible.
  • a clamping screw Under slightly deviating from a parallel orientation is already to understand a deviation of a few degrees, for example, a maximum of five degrees, so that the clamping screw is arranged parallel and coaxial to the longitudinal axis of the threaded bore of the threaded plate, while the adjusting screw at a slight angle deviating from the Orientation of the clamping screw to the longitudinal axis of the threaded bore extends.
  • the tension of the threaded plate relative to the adjusting screw over a short voltage path is possible.
  • the angle In order to limit the forces in the clamping of the threaded plate relative to the adjusting screw in the region of the thread of the adjusting screw or the threaded hole in the threaded plate, the angle is limited to a few degrees.
  • the tool according to the invention is further developed in that the clamping system is arranged on a lever mounted in a housing and having a take-off system. About the clamping system, the bounce system is adjusted in terms of its adjusted torque.
  • the clamping system is accessible via an opening in the housing, so that the clamping system for a protected in the housing arranged and on the other hand accessible via the opening in a simple manner for setting.
  • the opening may preferably be provided with a cover, so that the cover closes the opening to protect the underlying clamping system.
  • the cover can be opened only after entering an authorization code, so that the clamping system only a limited group of people namely a group of people who has the authorization code is accessible.
  • clamping screw can be biased against the lever.
  • Fig. 1 shows a screwing tool 1 in the form of a torque-screwing tool with a handle 2, which has a substantially circular cross-section.
  • the handle 2 is made of plastic.
  • the screwing tool 1 has a working part 5 of conventional design.
  • the working part 5 consists of a substantially annular housing 3, in which a rotatable mushroom head 6 is inserted, whose rotatability relative to the housing 3 is fixed alternatively in both directions of rotation and which mushroom head 6 has a square in cross section drive 7, which is not shown in detail
  • Tool nuts can be connected, which have different key widths and which serve the connection with the screw not shown.
  • the drive 7 is adjustable in terms of its transmittable torque, for example by turning the handle 2.
  • the screwing tool 1 according to Fig. 1 moreover has a display device 8 which serves to display various work values.
  • a display device 8 which serves to display various work values.
  • display devices 8 transmitted by the screwing tool 1 on the screw tightening torques are displayed.
  • Fig. 2 shows a housing 3 of a screwing tool 1, as shown in FIG Fig. 1 is shown.
  • the Housing 3 in Fig. 2 is shown in sectioned side view and may be round in cross-section.
  • a lever 9 is mounted relative to the housing 3 about a rotational axis 10 pivotally. At its upper end, the lever 9 has a bearing 11 for a release system not shown in detail.
  • This triggering system serves to generate a audible and tactile signal when a pre-set torque is reached. In some cases, the power flow (torque) to the screw connection is temporarily reduced or interrupted.
  • This take-off system is to be calibrated from time to time so that the actual transmitted torques are set correctly.
  • the operating angle of the triggering system is adjusted via the adjusting screw 13.
  • the lever 9 pivots about the axis of rotation 10 when adjusting the adjusting screw 13 and thus influences the effective angle of the bounce system.
  • the screwing tool 1 For the calibration or adjustment of the torque values, the screwing tool 1 according to Fig. 2 in the area of the lever 9 an adjustment 12.
  • the adjustment 12 consists of an adjusting screw 13 and a clamping system 14, which in turn consists of a clamping screw 15 and a threaded plate 16.
  • the clamping screw 15 and the adjusting screw 13 extend parallel to each other or at a small angle antiparallel to each other and are arranged in the region of the lever 9 and accessible through an opening 17 in the housing 3.
  • the threaded plate 16 has two threaded holes, wherein the one threaded bore of the threaded plate 16 of the adjusting screw 13 and the second bore of the threaded plate 16 is penetrated by the clamping screw 15.
  • the threaded plate 16 serves to secure the adjusting screw 13, in which the threaded plate 16 is pivoted about the clamping screw 15 relative to the longitudinal axis of the adjusting screw 13 and thereby a relative movement of the adjusting screw 13 to the threaded plate 16 and thus to the lever 9 is blocked.
  • the clamping screw 15 passes through the lever 9 in the region of a bore 18th
  • the clamping screw 15 is rotated so that the threaded plate 16 is pivoted with her attacked by the clamping screw 15 end in the direction of the lever 9.
  • the threaded plate 16 braced relative to the adjusting screw 13 in the region of their threaded through by the adjusting screw 13 and fixes this adjusting screw 13 such that settling of the adjusting screw 13 are almost excluded relative to the lever 9.
  • the design of the clamping system 14 allows almost any repetition of the adjustment of the screwing tool 1 without the provided by the clamping system 14 backup of the applicable torque value loses effectiveness.
  • the opening 17 is closed with a cover whose removal is possible only after entering an authorization code.
  • clamping screw 15 may be fixed in position relative to the lever 9 in the bore 18, so that a pivoting of the threaded plate 16 with its attacked by the adjusting screw 13 end away from the lever 9 is possible.
  • the opening 17 is closed with a cover whose removal is possible only after entering an authorization code.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Description

Die Erfindung betrifft ein Werkzeug, insbesondere Schraubwerkzeug, mit einem Handgriff, einem mit dem Gehäuse verbundenen, einem Öffnen oder Schließen einer Schraubverbindung dienenden Arbeitsteil und einer eine Justierung aufweisenden Kupplung, die den Arbeitsteil bei Erreichen eines über die Justierung einstellbaren Arbeitswertes, beispielsweise eines Anzugsmomentes der Schraubverbindung vom Gehäuse entkuppelt und/oder das Erreichen des über die Justierung einstellbaren Arbeitswertes signalisiert.The invention relates to a tool, in particular screwing, with a handle, connected to the housing, opening or closing a screw working part and a clutch having an adjustment, the working part upon reaching an adjustable over the adjustment work value, such as a torque of Uncoupled screw connection from the housing and / or signals the achievement of adjustable over the adjustment work value.

Derartige Werkzeuge sind aus dem Stand der Technik bekannt und hierbei handelt es sich insbesondere um sogenannte Drehmoment-Schraubwerkzeuge, die einen Handgriff und einen Arbeitsteil aufweisen, welcher Arbeitsteil in der Regel aus einem drehbar in einem Kopf gelagerten Vierkant besteht, der in Abhängigkeit des Arbeitsvorgangs, nämlich des Öffnens oder Schließens einer Schraubverbindung sperrbar ist. Darüber hinaus weisen derartige Werkzeuge eine Einrichtung auf, die das Anzugsmoment des Werkzeugs in Abhängigkeit des zulässigen Anzugsmomentes der Schraubverbindung beschränken. Mit dieser Ausgestaltung kann das Werkzeug auf das zulässige Anzugsmoment der Schraubverbindung eingestellt werden, so dass ein zu großes Anzugsmoment vermieden wird. Beispielsweise sind derartige Vorgehensweisen bei der Montage von Leichtmetallrädern an Kraftfahrzeugen bekannt. Ein solches gattungsgemäßes Werkzeug ist aus der FR 2 876 053 A3 bekannt.Such tools are known from the prior art and these are in particular so-called torque screwdriving tools, which have a handle and a working part, which working part usually consists of a rotatably mounted in a head square, which depends on the operation, namely the opening or closing of a screw can be blocked. In addition, such tools have a device that limits the tightening torque of the tool as a function of the permissible tightening torque of the screw. With this configuration, the tool can be adjusted to the allowable torque of the screw, so that too large a tightening torque is avoided. For example, such procedures are known in the assembly of light-alloy wheels on motor vehicles. Such a generic tool is from the FR 2 876 053 A3 known.

Ein Problem derartiger Werkzeuge liegt darin, dass die Anzugsmomente justierbar sind und dass die Justierung derartiger Anzugsmomente nicht dauerhaft fehlerfrei arbeitet, so dass derartige Werkzeuge von Zeit zu Zeit kalibriert und gegebenenfalls justiert werden müssen.A problem of such tools is that the torques are adjustable and that the adjustment of such torques does not work permanently error-free, so that such tools must be calibrated from time to time and possibly adjusted.

Darüber hinaus liegt der Erfindung die Aufgabe zugrunde, ein gattungsgemäßes Werkzeug derart weiterzubilden, dass eine zutreffende Justierung des Drehmomentwertes beziehungsweise Anzugsmomentes über einen längeren Zeitraum mit hoher Sicherheit beibehalten wird.In addition, the invention has the object , a generic tool in such a way that an accurate adjustment of the torque value or torque is maintained over a longer period of high security.

Bei der Lösung der voranstehend dargestellten Aufgabenstellung kommt ein Werkzeug nach Anspruch 1 zum Einsatz.In the solution of the task presented above, a tool according to claim 1 is used.

Das Spannsystem besteht vorzugsweise aus einer von der Justierschraube durchgriffenen Gewindeplatte und einer Spannschraube, mittels der die Gewindeplatte relativ zur Längsachse der Justierschraube bewegbar ist.The tensioning system preferably consists of a threaded plate which passes through the adjusting screw and a clamping screw by means of which the threaded plate can be moved relative to the longitudinal axis of the adjusting screw.

Nach einem weiteren Merkmal der Erfindung ist vorgesehen, dass Justierschraube und Spannschraube geringfügig abweichend von einer parallelen Ausrichtung zueinander verlaufend angeordnet sind, so dass eine Verspannung der Gewindeplatte zwischen der Justierschraube und der Spannschraube möglich ist. Unter geringfügig von einer parallelen Ausrichtung abweichend ist bereits eine Abweichung von wenigen Winkelgraden zu verstehen, beispielsweise von maximal fünf Winkelgraden, so dass die Spannschraube parallel und koaxial zur Längsachse der Gewindebohrung der Gewindeplatte verlaufend angeordnet ist, während die Justierschraube unter einem geringen Winkel abweichend von der Ausrichtung der Spannschraube zur Längsachse der Gewindebohrung verläuft. Hierdurch wird die Verspannung der Gewindeplatte relativ zur Justierschraube über einen kurzen Spannungsweg möglich. Um die Kräfte bei der Verspannung der Gewindeplatte relativ zur Justierschraube im Bereich des Gewindes der Justierschraube beziehungsweise der Gewindebohrung in der Gewindeplatte zu begrenzen ist der Winkel auf wenige Winkelgrade beschränkt.According to a further feature of the invention it is provided that adjusting screw and clamping screw are arranged slightly different from running parallel to each other, so that a clamping of the threaded plate between the adjusting screw and the clamping screw is possible. Under slightly deviating from a parallel orientation is already to understand a deviation of a few degrees, for example, a maximum of five degrees, so that the clamping screw is arranged parallel and coaxial to the longitudinal axis of the threaded bore of the threaded plate, while the adjusting screw at a slight angle deviating from the Orientation of the clamping screw to the longitudinal axis of the threaded bore extends. As a result, the tension of the threaded plate relative to the adjusting screw over a short voltage path is possible. In order to limit the forces in the clamping of the threaded plate relative to the adjusting screw in the region of the thread of the adjusting screw or the threaded hole in the threaded plate, the angle is limited to a few degrees.

Das erfindungsgemäße Werkzeug wird dadurch weitergebildet, dass das Spannsystem an einem in einem Gehäuse gelagerten und ein Absprungsystem aufweisenden Hebel angeordnet ist. Über das Spannsystem wird das Absprungsystem hinsichtlich seines justierten Drehmoments eingestellt.The tool according to the invention is further developed in that the clamping system is arranged on a lever mounted in a housing and having a take-off system. About the clamping system, the bounce system is adjusted in terms of its adjusted torque.

Ferner ist nach einem weiteren Merkmal der Erfindung vorgesehen, dass das Spannsystem über eine Öffnung im Gehäuse zugänglich ist, so dass das Spannsystem zum einen geschützt im Gehäuse angeordnet und zum anderen aber über die Öffnung in einfacher Weise zur Einstellung zugänglich ist. Die Öffnung kann vorzugsweise mit einer Abdeckung versehen sein, so dass die Abdeckung die Öffnung zum Schutz des dahinterliegenden Spannsystems verschließt. Auch in diesem Fall kann es vorgesehen sein, dass die Abdeckung nur nach Eingabe eines Berechtigungscodes geöffnet werden kann, so dass das Spannsystem nur einem beschränkten Personenkreis nämlich einem solchen Personenkreis, der den Berechtigungscode hat zugänglich ist.It is further provided according to a further feature of the invention that the clamping system is accessible via an opening in the housing, so that the clamping system for a protected in the housing arranged and on the other hand accessible via the opening in a simple manner for setting. The opening may preferably be provided with a cover, so that the cover closes the opening to protect the underlying clamping system. Also in this case it can be provided that the cover can be opened only after entering an authorization code, so that the clamping system only a limited group of people namely a group of people who has the authorization code is accessible.

Schließlich ist nach einem weiteren Merkmal der Erfindung vorgesehen, dass die Spannschraube gegen den Hebel vorspannbar ist.Finally, it is provided according to a further feature of the invention that the clamping screw can be biased against the lever.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung der zugehörigen Zeichnung, in der bevorzugte Ausführungsformen der Erfindung dargestellt sind. In der Zeichnung zeigen:

Fig. 1
zeigt ein Schraubwerkzeug 1 in Form eines Drehmoment-Schraubwerkzeuges.
Fig. 2
einen Abschnitt eines Gehäuses des Schraubwerkzeuges gemäß Fig.1 in geschnitten dargestellter Seitenansicht.
Further features and advantages of the invention will become apparent from the following description of the accompanying drawings in which preferred embodiments of the invention are shown. In the drawing show:
Fig. 1
shows a screwing tool 1 in the form of a torque-screwing tool.
Fig. 2
a portion of a housing of the screwing according to Fig.1 in cut side view.

Fig. 1 zeigt ein Schraubwerkzeug 1 in Form eines Drehmoment-Schraubwerkzeuges mit einem Handgriff 2, der im Wesentlichen einen kreisförmigen Querschnitt aufweist. Der Handgriff 2 besteht aus Kunststoff. Fig. 1 shows a screwing tool 1 in the form of a torque-screwing tool with a handle 2, which has a substantially circular cross-section. The handle 2 is made of plastic.

An einem mit dem Handgriff 2 verbundenen Ende 4 weist das Schraubwerkzeug 1 einen Arbeitsteil 5 üblicher Ausgestaltung auf. Der Arbeitsteil 5 besteht aus einem im Wesentlichen ringförmigen Gehäuse 3, in welches ein drehbarer Pilzkopf 6 eingesetzt ist, dessen Drehbarkeit relativ zum Gehäuse 3 alternativ in beide Drehrichtungen festlegbar ist und welcher Pilzkopf 6 einen im Querschnitt quadratischen Antrieb 7 aufweist, der mit nicht näher dargestellten Werkzeugnüssen verbindbar ist, die unterschiedliche Schlüsselweiten aufweisen und die der Verbindung mit der nicht näher dargestellten Schraubverbindung dienen.At an end 4 connected to the handle 2, the screwing tool 1 has a working part 5 of conventional design. The working part 5 consists of a substantially annular housing 3, in which a rotatable mushroom head 6 is inserted, whose rotatability relative to the housing 3 is fixed alternatively in both directions of rotation and which mushroom head 6 has a square in cross section drive 7, which is not shown in detail Tool nuts can be connected, which have different key widths and which serve the connection with the screw not shown.

Der Antrieb 7 ist hinsichtlich seines übertragbaren Drehmoments beispielsweise durch Verdrehen des Handgriffs 2 einstellbar.The drive 7 is adjustable in terms of its transmittable torque, for example by turning the handle 2.

Die Technik eines derartigen Drehmoment-Schraubwerkzeugs ist hinlänglich bekannt und es wird diesbezüglich auf die DE 203 15 000 U1 verwiesen, die eine Ausführungsform eines derartigen Drehmoment-Schraubwerkzeugs offenbart.The technique of such a torque wrenching tool is well known and it is in this regard to the DE 203 15 000 U1 referenced, which discloses an embodiment of such a torque wrenching tool.

Das Schraubwerkzeug 1 gemäß Fig. 1 weist darüber hinaus eine Anzeigevorrichtung 8 auf, die der Anzeige verschiedener Arbeitswerte dient. In der Regel werden in derartigen Anzeigevorrichtungen 8 die vom Schraubwerkzeug 1 auf die Schraubverbindung übertragenen Anzugsmomente angezeigt.The screwing tool 1 according to Fig. 1 moreover has a display device 8 which serves to display various work values. In general, in such a display devices 8 transmitted by the screwing tool 1 on the screw tightening torques are displayed.

Fig. 2 zeigt ein Gehäuse 3 eines Schraubwerkzeugs 1, wie es in Fig. 1 dargestellt ist. Das Gehäuse 3 in Fig. 2 ist in geschnitten dargestellter Seitenansicht gezeigt und kann im Querschnitt rund ausgebildet sein. Fig. 2 shows a housing 3 of a screwing tool 1, as shown in FIG Fig. 1 is shown. The Housing 3 in Fig. 2 is shown in sectioned side view and may be round in cross-section.

In dem Gehäuse 3 ist ein Hebel 9 relativ zum Gehäuse 3 um eine Drehachse 10 verschwenkbar gelagert. An seinem oberen Ende weist der Hebel 9 eine Lagerung 11 für ein nicht näher dargestelltes Auslösesystem auf. Dieses Auslösesystem dient dazu, dass bei Erreichen eines voreingestellten Drehmomentes das Auslösesystem ein hör- und fühlbares Signal erzeugt. Teilweise wird hierbei auch der Kraftfluss (Drehmoment) zur Schraubverbindung kurzfristig vermindert oder unterbrochen.In the housing 3, a lever 9 is mounted relative to the housing 3 about a rotational axis 10 pivotally. At its upper end, the lever 9 has a bearing 11 for a release system not shown in detail. This triggering system serves to generate a audible and tactile signal when a pre-set torque is reached. In some cases, the power flow (torque) to the screw connection is temporarily reduced or interrupted.

Dieses Absprungsystem ist von Zeit zu Zeit zu kalibrieren, so dass die tatsächlich übertragenen Anzugsmomente zutreffend eingestellt sind. Man spricht hier auch von einer Justierung der Drehmomentwerte.This take-off system is to be calibrated from time to time so that the actual transmitted torques are set correctly. One speaks here also of an adjustment of the torque values.

Zur Kalibrierung wird der Wirkwinkel des Auslösesystems über die Justierschraube 13 eingestellt. Dabei schwenkt der Hebel 9 über die Drehachse 10 beim Verstellen der Justierschraube 13 und beeinflusst so den Wirkwinkel des Absprungsystems.For calibration, the operating angle of the triggering system is adjusted via the adjusting screw 13. The lever 9 pivots about the axis of rotation 10 when adjusting the adjusting screw 13 and thus influences the effective angle of the bounce system.

Für die Kalibrierung beziehungsweise Justierung der Drehmomentwerte weist das Schraubwerkzeug 1 gemäß Fig. 2 im Bereich des Hebels 9 eine Justierung 12 auf. Die Justierung 12 besteht aus einer Justierschraube 13 und einem Spannsystem 14, welches wiederum aus einer Spannschraube 15 und einer Gewindeplatte 16 besteht.For the calibration or adjustment of the torque values, the screwing tool 1 according to Fig. 2 in the area of the lever 9 an adjustment 12. The adjustment 12 consists of an adjusting screw 13 and a clamping system 14, which in turn consists of a clamping screw 15 and a threaded plate 16.

Die Spannschraube 15 und die Justierschraube 13 verlaufen parallel oder unter einem geringen Winkel antiparallel zueinander und sind im Bereich des Hebels 9 angeordnet und durch eine Öffnung 17 im Gehäuse 3 zugänglich.The clamping screw 15 and the adjusting screw 13 extend parallel to each other or at a small angle antiparallel to each other and are arranged in the region of the lever 9 and accessible through an opening 17 in the housing 3.

Die Gewindeplatte 16 weist zwei Gewindebohrungen auf, wobei die eine Gewindebohrung der Gewindeplatte 16 von der Justierschraube 13 und die zweite Bohrung der Gewindeplatte 16 von der Spannschraube 15 durchgriffen ist. Die Gewindeplatte 16 dient der Sicherung der Justierschraube 13, in dem die Gewindeplatte 16 über die Spannschraube 15 relativ zur Längsachse der Justierschraube 13 verschwenkt wird und hierdurch eine Relativbewegung der Justierschraube 13 zur Gewindeplatte 16 und damit zum Hebel 9 blockiert ist. Zu diesem Zweck durchgreift die Spannschraube 15 den Hebel 9 im Bereich einer Bohrung 18.The threaded plate 16 has two threaded holes, wherein the one threaded bore of the threaded plate 16 of the adjusting screw 13 and the second bore of the threaded plate 16 is penetrated by the clamping screw 15. The threaded plate 16 serves to secure the adjusting screw 13, in which the threaded plate 16 is pivoted about the clamping screw 15 relative to the longitudinal axis of the adjusting screw 13 and thereby a relative movement of the adjusting screw 13 to the threaded plate 16 and thus to the lever 9 is blocked. For this purpose, the clamping screw 15 passes through the lever 9 in the region of a bore 18th

Die Funktion des voranstehend genannten Spannsystems 14 ist wie folgt.The function of the aforementioned tensioning system 14 is as follows.

Nachdem der Hebel 9 für die Justierung des Drehmomentwertes über die Justierschraube 13 zutreffend eingestellt ist wird die Spannschraube 15 derart gedreht, dass die Gewindeplatte 16 mit ihrem von der Spannschraube 15 durchgriffenen Ende in Richtung auf den Hebel 9 verschwenkt wird. Hierdurch verspannt die Gewindeplatte 16 im Bereich ihrer von der Justierschraube 13 durchgriffenen Gewindebohrung relativ zur Justierschraube 13 und fixiert diese Justierschraube 13 derart, dass Setzerscheinungen der Justierschraube 13 relativ zum Hebel 9 nahezu ausgeschlossen sind. Die Ausgestaltung des Spannsystems 14 ermöglicht eine nahezu beliebige Wiederholung der Justierung des Schraubwerkzeugs 1 ohne dass die mittels des Spannsystems 14 vorgesehene Sicherung des zutreffenden Drehmomentwertes an Wirksamkeit verliert.After the lever 9 is adjusted correctly for the adjustment of the torque value via the adjusting screw 13, the clamping screw 15 is rotated so that the threaded plate 16 is pivoted with her attacked by the clamping screw 15 end in the direction of the lever 9. As a result, the threaded plate 16 braced relative to the adjusting screw 13 in the region of their threaded through by the adjusting screw 13 and fixes this adjusting screw 13 such that settling of the adjusting screw 13 are almost excluded relative to the lever 9. The design of the clamping system 14 allows almost any repetition of the adjustment of the screwing tool 1 without the provided by the clamping system 14 backup of the applicable torque value loses effectiveness.

Desweiteren kann vorgesehen sein, dass die Öffnung 17 mit einer Abdeckung verschlossen ist, deren Entfernung nur nach Eingabe eines Berechtigungscodes möglich ist.Furthermore, it can be provided that the opening 17 is closed with a cover whose removal is possible only after entering an authorization code.

Selbstverständlich sind weitere Änderungen dieses Spannsystems 14 möglich. Beispielsweise kann die Spannschraube 15 in ihrer Lage relativ zum Hebel 9 in der Bohrung 18 fixiert sein, so dass auch ein Verschwenken der Gewindeplatte 16 mit ihrem von der Justierschraube 13 durchgriffenen Ende weg vom Hebel 9 möglich ist. Desweiteren kann vorgesehen sein, dass die Öffnung 17 mit einer Abdeckung verschlossen ist, deren Entfernung nur nach Eingabe eines Berechtigungscodes möglich ist.Of course, further changes to this clamping system 14 are possible. For example, the clamping screw 15 may be fixed in position relative to the lever 9 in the bore 18, so that a pivoting of the threaded plate 16 with its attacked by the adjusting screw 13 end away from the lever 9 is possible. Furthermore, it can be provided that the opening 17 is closed with a cover whose removal is possible only after entering an authorization code.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
SchraubwerkzeugWrench
22
Handgriffhandle
33
Gehäusecasing
44
EndeThe End
55
Arbeitsteilworking part
66
Pilzkopfmushroom head
77
Antriebdrive
88th
Anzeigevorrichtungdisplay device
99
Hebellever
1010
Drehachseaxis of rotation
1111
Lagerungstorage
1212
Justierungadjustment
1313
Justierschraubeadjusting screw
1414
Spannsystemclamping system
1515
Spannschraubeclamping screw
1616
Gewindeplattethreaded plate
1717
Öffnungopening
1818
Bohrungdrilling

Claims (6)

  1. A tool, in particular a screwdriver (1), comprising a housing (3) and a handle (2), a working part (5) connected to the housing (3) and serving to open or close a screw connection and a coupling comprising an adjustment device (12), which coupling will decouple the working part (5) from the housing (3) if a labour value that can be set by means of the adjustment device (12), for example a tightening torque of the screw connection, is reached, and/or which coupling will signalize if the labour value adjustable by means of the adjustment device is obtained,
    characterized in
    that the adjustment device (12) comprises an adjustment screw (13) with a clamping system (14).
  2. A tool according to claim 1,
    characterized in
    that the clamping system (14) is composed of a threaded plate (16) traversed by the adjustment screw (13) and a clamp screw (15), by means of which the threaded plate (16) can be displaced with respect to the longitudinal axis of the adjustment screw (13).
  3. A tool according to claim 1,
    characterized in
    that the adjustment screw (13) and the clamp screw (15) are arranged in a slightly deviating parallel alignment with respect to each other or extend parallel to one another.
  4. A tool according to claim 1,
    characterized in
    that the clamping system (14) is accommodated in a housing (3) and is arranged on a lever (9) comprising a jump off system.
  5. A tool according to claim 4,
    characterized in
    that the clamping system (14) is accessible via an opening (17) in the housing (3).
  6. A tool according to claim 4,
    characterized in
    that the clamp screw (15) can be preloaded against the lever (9).
EP11715421.1A 2010-05-07 2011-04-12 Adjusting system for a tool Not-in-force EP2566663B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010019878 2010-05-07
PCT/EP2011/001811 WO2011137964A1 (en) 2010-05-07 2011-04-12 Adjusting system for a tool

Publications (2)

Publication Number Publication Date
EP2566663A1 EP2566663A1 (en) 2013-03-13
EP2566663B1 true EP2566663B1 (en) 2018-12-05

Family

ID=44074969

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11715420.3A Not-in-force EP2566662B1 (en) 2010-05-07 2011-04-12 Tool
EP11715421.1A Not-in-force EP2566663B1 (en) 2010-05-07 2011-04-12 Adjusting system for a tool

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP11715420.3A Not-in-force EP2566662B1 (en) 2010-05-07 2011-04-12 Tool

Country Status (4)

Country Link
US (2) US20130152745A1 (en)
EP (2) EP2566662B1 (en)
CN (2) CN102985226B (en)
WO (2) WO2011137964A1 (en)

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WO2014082266A1 (en) * 2012-11-29 2014-06-05 华为技术有限公司 Method and system for uplink mu-mimo
CN104400729A (en) * 2014-10-17 2015-03-11 年福东 Dual-purpose torque wrench
CN110181452B (en) * 2018-02-22 2020-10-23 王和 Crank pin screw disassembling tool

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Also Published As

Publication number Publication date
EP2566662B1 (en) 2018-11-21
CN102985226B (en) 2016-05-18
US20130152745A1 (en) 2013-06-20
EP2566662A1 (en) 2013-03-13
WO2011137964A1 (en) 2011-11-10
WO2011137963A1 (en) 2011-11-10
CN103003028A (en) 2013-03-27
EP2566663A1 (en) 2013-03-13
CN103003028B (en) 2016-08-03
US20130213195A1 (en) 2013-08-22
CN102985226A (en) 2013-03-20

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