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EP0431278A2 - Ratchet key - Google Patents

Ratchet key Download PDF

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Publication number
EP0431278A2
EP0431278A2 EP90119123A EP90119123A EP0431278A2 EP 0431278 A2 EP0431278 A2 EP 0431278A2 EP 90119123 A EP90119123 A EP 90119123A EP 90119123 A EP90119123 A EP 90119123A EP 0431278 A2 EP0431278 A2 EP 0431278A2
Authority
EP
European Patent Office
Prior art keywords
ratchet wheel
ratchet
wrench
socket wrench
polygonal
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Withdrawn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
EP90119123A
Other languages
German (de)
French (fr)
Other versions
EP0431278A3 (en
Inventor
Hermann J. Zerver
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.)
Hazet Werk Hermann Zerver GmbH and Co KG
Original Assignee
Hazet Werk Hermann Zerver GmbH and Co KG
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 Hazet Werk Hermann Zerver GmbH and Co KG filed Critical Hazet Werk Hermann Zerver GmbH and Co KG
Publication of EP0431278A2 publication Critical patent/EP0431278A2/en
Publication of EP0431278A3 publication Critical patent/EP0431278A3/en
Withdrawn legal-status Critical Current

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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
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
    • B25B13/463—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an externally toothed wheel
    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/06—Spanners; Wrenches with rigid jaws of socket type

Definitions

  • the invention relates to a ratchet wrench with a ratchet wheel rotatably mounted in the head end of the tool shank, which can be locked in one of the two directions of rotation by a spring-loaded locking piece and is provided with a central opening for the passage of a workpiece, on the key surfaces of which is connected to the ratchet wheel via coupling surfaces Socket wrench insert is attachable.
  • ratchet wrenches are known. Through the central opening in the ratchet wheel and in the actual tool connected to the ratchet wheel, the possibility is created to place the socket wrench insert with its contact surfaces, for example on the key surfaces of a nut, which is located on the lower part of a threaded rod, so that this threaded rod passes through the head end of the ratchet wrench protrudes.
  • the known ratchet wrench can thus also be used for loosening or tightening screw connections, for which it was previously necessary to use ring spanners or combination wrenches.
  • the ratchet wheel is provided with an extension protruding from the underside of the ratchet wrench head end, which is formed on the outside with coupling surfaces, for example in the form of a hexagon.
  • the respective socket wrench insert which is designed for this purpose with a coupling hexagon socket, is placed on these coupling surfaces. This results in a relatively large axial extension of the ratchet wheel and socket wrench insert and a reduction in the diameter of the central opening formed in the ratchet wheel and socket wrench insert.
  • the invention has for its object to improve the known ratchet wrench of the type described in order to reduce the space requirement and enlarge the free passage opening.
  • the solution to this problem by the invention is characterized in that the central opening of the ratchet wheel is designed as a polygonal recess for the immediate reception of a corresponding external polygon, which is arranged on the socket wrench inserts each having a through opening.
  • the respective socket wrench insert with its external polygon can be inserted directly into the polygonal recess of the ratchet wheel in this way.
  • the polygonal recess in the ratchet wheel and the outer polygon of the socket wrench inserts are designed as double hexagon. According to the invention, however, it is also possible to design the polygonal recess and the polygonal outer as an axial toothing.
  • a further development of the ratchet wrench according to the invention is characterized by a snap ring engaging in a groove within the polygonal connection for axially non-positive fixing of the respective socket wrench insert on the ratchet wheel.
  • the ratchet wrench known in its basic structure has a tool shank 1 which is provided with grips 2 at the rear end. It consists of a housing-like middle part 1a and two cover plates 1b, which cover the components arranged in the middle part 1a and at the same time are used for the storage of these components, provided that they are rotatably or rotatably mounted.
  • a ratchet wheel 3 is arranged in the head end of the middle part 1a and is provided with teeth on its outer circumference, engage in the teeth of a locking piece 4 which is loaded by a leaf spring 5. In this way, it is possible to lock the ratchet wheel 3 in one of the two directions of rotation, whereas it can be rotated in the other direction of rotation in each case by pushing back the locking piece 4. The switching of the respective free direction of rotation takes place by means of a slide 6, which controls the position of the locking piece 4 via the leaf spring 5.
  • the ratchet wheel 3 is provided with tubular extensions through which the ratchet wheel 3 is rotatably mounted in corresponding bearing recesses in the cover plates 1b. Furthermore, the ratchet wheel 3 is provided with a central opening which is designed as a polygonal recess 7. In the exemplary embodiment according to FIG. 1, this polygonal recess 7 is designed as a double hexagon.
  • the outer polygon 8 of the socket wrench insert 9 to be used in each case can be inserted directly into this polygonal recess 7.
  • this polygon 8 is designed as a double hexagon. As can be seen in FIGS. 2 and 3, this results in a large coupling surface between the ratchet wheel 3 and the socket wrench insert 9. It is also possible to provide the socket wrench insert 9 with a relatively large through opening 10.
  • key surfaces 11 are formed in a known manner, with which the socket 9 is placed on the key surfaces of the respective nut or screw.
  • the overall result is a particularly simple and space-saving design with sufficiently large bearing and coupling surfaces.
  • the Polygonal connection either a snap ring engaging in a groove or an O-ring cooperating with a cylindrical section can be arranged.

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

Abstract

The invention relates to a ratchet wrench having a ratchet wheel (3) which is rotatably mounted in the head end of the tool shank (1), can be arrested in either direction of rotation by a spring-loaded locking piece (4) and is provided with a central opening for the passage of a workpiece, on the wrench faces of which a socket (9) connected to the ratchet wheel (3) via coupling faces can be mounted. To obtain large coupling faces while retaining a low space requirement and the largest possible passage opening, the central opening of the ratchet wheel (3) is constructed as a polygonal aperture (7) for directly receiving a corresponding outer polygon (8) which is arranged on the sockets (9) in each case having one passage opening (10). <IMAGE>

Description

Die Erfindung betrifft einen Ratschenschlüssel mit einem im Kopfende des Werkzeugschaftes drehbar gelagerten Knarrad, das in jeweils einer der beiden Drehrichtungen durch ein federbelastetes Sperrstück arretierbar und mit einer zentralen Öffnung für den Durchtritt eines Werkstückes versehen ist, auf dessen Schlüsselflächen ein mit dem Knarrad über Kupplungsflächen verbundener Steckschlüsseleinsatz aufsteckbar ist.The invention relates to a ratchet wrench with a ratchet wheel rotatably mounted in the head end of the tool shank, which can be locked in one of the two directions of rotation by a spring-loaded locking piece and is provided with a central opening for the passage of a workpiece, on the key surfaces of which is connected to the ratchet wheel via coupling surfaces Socket wrench insert is attachable.

Derartige Ratschenschlüssel sind bekannt. Durch die zentrale Öffnung im Knarrad und in dem mit dem Knarrad verbundenen eigentlichen Werkzeug wird die Möglichkeit geschaffen, den Steckschlüsseleinsatz mit seinen Angriffsflächen beispielsweise auf die Schlüsselflächen einer Mutter aufzusetzen, die sich auf dem unteren Teil einer Gewindestange befindet, so daß diese Gewindestange durch das Kopfende des Ratschenschlüssels hindurchragt. Der bekannte Ratschenschlüssel kann somit auch zum Lösen oder Anziehen von Schraubverbindungen verwendet werden, für die es bisher erforderlich war, Ring- oder Maulschlüssel einzusetzen.Such ratchet wrenches are known. Through the central opening in the ratchet wheel and in the actual tool connected to the ratchet wheel, the possibility is created to place the socket wrench insert with its contact surfaces, for example on the key surfaces of a nut, which is located on the lower part of a threaded rod, so that this threaded rod passes through the head end of the ratchet wrench protrudes. The known ratchet wrench can thus also be used for loosening or tightening screw connections, for which it was previously necessary to use ring spanners or combination wrenches.

Bei der bekannten Konstruktion ist das Knarrad mit einer aus der Unterseite des Ratschenschlüsselkopfendes herausragenden Verlängerung versehen, die auf der Außenseite mit Kupplungsflächen, beispielsweise in Form eines Sechskantes ausgebildet ist. Auf diese Kupplungsflächen wird der jeweilige Steckschlüsseleinsatz aufgesetzt, der zu diesem Zweck mit einem Kupplungs-Innensechskant ausgeführt ist. Hierdurch ergibt sich eine relativ große axiale Erstreckung von Knarrad und Steckschlüsseleinsatz und eine Verringerung des Durchmessers der im Knarrad und Steckschlüsseleinsatz ausgebildeten zentralen Öffnung.In the known construction, the ratchet wheel is provided with an extension protruding from the underside of the ratchet wrench head end, which is formed on the outside with coupling surfaces, for example in the form of a hexagon. The respective socket wrench insert, which is designed for this purpose with a coupling hexagon socket, is placed on these coupling surfaces. This results in a relatively large axial extension of the ratchet wheel and socket wrench insert and a reduction in the diameter of the central opening formed in the ratchet wheel and socket wrench insert.

Der Erfindung liegt die Aufgabe zugrunde, den bekannten Ratschenschlüssel der eingangs beschriebenen Art zwecks Verringerung des Raumbedarfes und Vergrößerung der freien Durchgangsöffnung zu verbessern.The invention has for its object to improve the known ratchet wrench of the type described in order to reduce the space requirement and enlarge the free passage opening.

Die Lösung dieser Aufgabenstellung durch die Erfindung ist dadurch gekennzeichnet, daß die zentrale Öffnung des Knarrades als Mehrkantausnehmung zur unmittelbaren Aufnahme eines entsprechenden Außenmehrkants ausgebildet ist, der an den jeweils eine Durchgangsöffnung aufweisenden Steckschlüsseleinsätzen angeordnet ist.The solution to this problem by the invention is characterized in that the central opening of the ratchet wheel is designed as a polygonal recess for the immediate reception of a corresponding external polygon, which is arranged on the socket wrench inserts each having a through opening.

Bei der erfindungsgemäßen Ausbildung kann auf diese Weise der jeweilige Steckschlüsseleinsatz mit seinem Außenmehrkant unmittelbar in die Mehrkantausnehmung des Knarrades eingesetzt werden. Es entfällt eine axiale Verlängerung des Knarrades, und es ergeben sich größere Kupplungsflächen zwischen Knarrad und Steckschlüsseleinsatz. Durch den Wegfall einer derartigen Verlängerung ergibt sich weiterhin die Möglichkeit, die zentrale Durchtrittsöffnung bei ansonsten gleichen Abmessungen zu vergrößern.In the embodiment according to the invention, the respective socket wrench insert with its external polygon can be inserted directly into the polygonal recess of the ratchet wheel in this way. There is no axial extension of the ratchet wheel, and there are larger coupling surfaces between the ratchet wheel and socket wrench insert. By eliminating such an extension, there is still the possibility of enlarging the central passage opening with otherwise the same dimensions.

Bei einer bevorzugten Ausführungsform der Erfindung sind die Mehrkantausnehmung im Knarrad und der Außenmehrkant der Steckschlüsseleinsätze als Doppelsechskant ausgebildet. Erfindungsgemäß ist es jedoch auch möglich, die Mehrkantausnehmung und den Außenmehrkant als axiale Verzahnung auszuführen.In a preferred embodiment of the invention, the polygonal recess in the ratchet wheel and the outer polygon of the socket wrench inserts are designed as double hexagon. According to the invention, however, it is also possible to design the polygonal recess and the polygonal outer as an axial toothing.

Eine Weiterbildung des erfindungsgemäßen Ratschenschlüssels ist gekennzeichnet durch einen in eine Rille innerhalb der Mehrkantverbindung eingreifenden Sprengring zur axialen kraftschlüssigen Festlegung des jeweiligen Steckschlüsseleinsatzes am Knarrad. Alternativ wird mit der Erfindung vorgeschlagen, eine derartige kraftschlüssige Festlegung des jeweiligen Steckschlüsseleinsatzes am Knarrad durch einen mit einem zylindrischen Abschnitt zusammenwirkenden O-Ring zu bewirken, der ebenfalls innerhalb der Mehrkantverbindung angeordnet ist.A further development of the ratchet wrench according to the invention is characterized by a snap ring engaging in a groove within the polygonal connection for axially non-positive fixing of the respective socket wrench insert on the ratchet wheel. Alternatively, it is proposed with the invention to bring about such a force-fit fixing of the respective socket wrench insert on the ratchet wheel by means of an O-ring which interacts with a cylindrical section and is likewise arranged within the polygonal connection.

Auf der Zeichnung ist ein Ausführungsbeispiel des erfindungsgemäßen Ratschenschlüssels dargestellt, und zwar zeigen:

Fig. 1
eine Draufsicht auf einen derartigen Ratschenschlüssel, wobei im Kopfbereich der besseren Darstellung wegen die obere Deckplatte weggelassen wurde,
Fig. 2
einen Schnitt gemäß der Schnittlinie II - II in Fig.1 durch das mit einem Steckschlüsseleinsatz versehene Knarrad und
Fig. 3
eine Seitenansicht des in Fig.2 dargestellten Steckschlüsseleinsatzes.
An exemplary embodiment of the ratchet wrench according to the invention is shown in the drawing, namely:
Fig. 1
3 shows a plan view of such a ratchet wrench, the upper cover plate being omitted in the head region for the sake of better illustration,
Fig. 2
a section along the section line II - II in Figure 1 by the ratchet wheel provided with a socket wrench and
Fig. 3
a side view of the socket insert shown in Figure 2.

Der in seinem Grundaufbau bekannte Ratschenschlüssel hat einen Werkzeugschaft 1, der am hinteren Ende mit Griffschalen 2 versehen ist. Er besteht aus einem gehäuseartigen Mittelteil 1a und zwei Deckplatten 1b, welche die im Mittelteil 1a angeordneten Bauelemente abdecken und zugleich zur Lagerung dieser Bauelemente herangezogen werden, sofern diese dreh- bzw. verdrehbar gelagert sind.The ratchet wrench known in its basic structure has a tool shank 1 which is provided with grips 2 at the rear end. It consists of a housing-like middle part 1a and two cover plates 1b, which cover the components arranged in the middle part 1a and at the same time are used for the storage of these components, provided that they are rotatably or rotatably mounted.

Im Kopfende des Mittelteils 1a ist ein Knarrad 3 angeordnet, das auf seinem Außenumfang mit einer Verzahnung versehen ist, in die Zähne eines Sperrstückes 4 eingreifen, das durch eine Blattfeder 5 belastet ist. Auf diese Weise ist es möglich, das Knarrad 3 in einer der beiden Drehrichtungen zu arretieren, wogegen es in der jeweils anderen Drehrichtung jeweils unter Zurückdrücken des Sperrstückes 4 drehbar ist. Die Umschaltung der jeweils freien Drehrichtung geschieht mittels eines Schiebers 6, der über die Blattfeder 5 die Lage des Sperrstückes 4 steuert.A ratchet wheel 3 is arranged in the head end of the middle part 1a and is provided with teeth on its outer circumference, engage in the teeth of a locking piece 4 which is loaded by a leaf spring 5. In this way, it is possible to lock the ratchet wheel 3 in one of the two directions of rotation, whereas it can be rotated in the other direction of rotation in each case by pushing back the locking piece 4. The switching of the respective free direction of rotation takes place by means of a slide 6, which controls the position of the locking piece 4 via the leaf spring 5.

Wie Fig.2 erkennen läßt, ist das Knarrad 3 mit rohrförmigen Verlängerungen versehen, durch die das Knarrad 3 drehbar in entsprechenden Lagerausnehmungen der Deckplatten 1b gelagert ist. Weiterhin ist das Knarrad 3 mit einer zentralen Öffnung versehen, die als Mehrkantausnehmung 7 ausgeführt ist. Diese Mehrkantausnehmung 7 ist beim Ausführungsbeispiel nach Fig.1 als Doppelsechskant ausgebildet.As can be seen in FIG. 2, the ratchet wheel 3 is provided with tubular extensions through which the ratchet wheel 3 is rotatably mounted in corresponding bearing recesses in the cover plates 1b. Furthermore, the ratchet wheel 3 is provided with a central opening which is designed as a polygonal recess 7. In the exemplary embodiment according to FIG. 1, this polygonal recess 7 is designed as a double hexagon.

Unmittelbar in diese Mehrkantausnehmung 7 ist der Außenmehrkant 8 des jeweils zu verwendenden Steckschlüsseleinsatzes 9 einsteckbar. Beim Ausführungsbeispiel ist auch dieser Außenmehrkant 8 als Doppelsechskant ausgeführt. Wie die Figuren 2 und 3 erkennen lassen, ergibt sich hierdurch eine große Kupplungsfläche zwischen Knarrad 3 und Steckschlüsseleinsatz 9. Außerdem ist es möglich, den Steckschlüsseleinsatz 9 mit einer relativ großen Durchgangsöffnung 10 zu versehen. Am anderen Ende jedes Steckschlüsseleinsatzes 9 sind in bekannter Weise Schlüsselflächen 11 ausgebildet, mit denen der Steckschlüsseleinsatz 9 auf die Schlüsselflächen der jeweiligen Mutter bzw. Schraube aufgesetzt wird.The outer polygon 8 of the socket wrench insert 9 to be used in each case can be inserted directly into this polygonal recess 7. In the embodiment, this polygon 8 is designed as a double hexagon. As can be seen in FIGS. 2 and 3, this results in a large coupling surface between the ratchet wheel 3 and the socket wrench insert 9. It is also possible to provide the socket wrench insert 9 with a relatively large through opening 10. At the other end of each socket 9, key surfaces 11 are formed in a known manner, with which the socket 9 is placed on the key surfaces of the respective nut or screw.

Insgesamt ergibt sich eine besonders einfache und raumsparende Konstruktion mit ausreichend großen Lager- und Kupplungsflächen. Um die in das Knarrad 3 eingesetzten Steckschlüsseleinsätze 9 kraftschlüssig festzuhalten, kann im Bereich der Mehrkantverbindung entweder ein in eine Rille eingreifender Sprengring oder ein mit einem zylindrischen Abschnitt zusammenwirkender O-Ring angeordnet werden.The overall result is a particularly simple and space-saving design with sufficiently large bearing and coupling surfaces. In order to hold the socket wrench inserts 9 inserted into the ratchet wheel 3 non-positively, the Polygonal connection either a snap ring engaging in a groove or an O-ring cooperating with a cylindrical section can be arranged.

Bezugszeichenliste:Reference symbol list:

11
Werkzeugschaft Tool shank
1a1a
Mittelteil Middle section
1b1b
Deckplatte Cover plate
22nd
Griffschale Grip shell
33rd
Knarrad Ratchet wheel
44th
Sperrstück Locking piece
55
Blattfeder Leaf spring
66
Schieber Slider
77
Mehrkantausnehmung Polygonal recess
88th
Außenmehrkant Outside polygon
99
Steckschlüsseleinsatz Socket wrench insert
1010th
Durchgangsöffnung Through opening
1111
Schlüsselfläche Key surface

Claims (5)

Ratschenschlüssel mit einem im Kopfende des Werkzeugschaftes drehbar gelagerten Knarrad, das in jeweils einer der beiden Drehrichtungen durch ein federbelastetes Sperrstück arretierbar und mit einer zentralen Öffnung für den Durchtritt eines Werkstückes versehen ist, auf dessen Schlüsselflächen ein mit dem Knarrad über Kupplungsflächen verbundener Steckschlüsseleinsatz aufsteckbar ist,
dadurch gekennzeichnet,
daß die zentrale Öffnung des Knarrades (3) als Mehrkantausnehmung (7) zur unmittelbaren Aufnahme eines entsprechenden Außenmehrkants (8) ausgebildet ist, der an den jeweils eine Durchgangsöffnung (10) aufweisenden Steckschlüsseleinsätzen (9) angeordnet ist.Ratchet wrench with a ratchet wheel rotatably mounted in the head end of the tool shaft, which can be locked in each of the two directions of rotation by a spring-loaded locking piece and is provided with a central opening for the passage of a workpiece, on the key surfaces of which a socket wrench insert connected to the ratchet wheel via coupling surfaces can be plugged on,
characterized,
that the central opening of the ratchet wheel (3) is designed as a polygonal recess (7) for immediately receiving a corresponding outer polygon (8) which is arranged on the socket wrench inserts (9) each having a through opening (10). Ratschenschlüssel nach Anspruch 1, dadurch gekennzeichnet, daß die Mehrkantausnehmung (7) im Knarrad (3) und der Außenmehrkant (8) der Steckschlüsseleinsätze (9) als Doppelsechskant ausgebildet sind.Ratchet wrench according to claim 1, characterized in that the polygonal recess (7) in the ratchet wheel (3) and the outer polygon (8) of the socket wrench inserts (9) are designed as double hexagon. Ratschenschlüssel nach Anspruch 1, dadurch gekennzeichnet, daß die Mehrkantausnehmung (7) im Knarrad (3) und der Außenmehrkant (8) der Steckschlüsseleinsätze (9) als axiale Verzahnung ausgebildet sind.Ratchet wrench according to claim 1, characterized in that the polygonal recess (7) in the ratchet wheel (3) and the outer polygon (8) of the socket wrench inserts (9) are designed as axial teeth. Ratschenschlüssel nach mindestens einem der Ansprüche 1 bis 3, gekennzeichnet durch einen in eine Rille innerhalb der Mehrkantverbindung eingreifenden Sprengring zur axialen kraftschlüssigen Festlegung des jeweiligen Steckschlüsseleinsatzes (9) am Knarrad (3).Ratchet wrench according to at least one of claims 1 to 3, characterized by a snap ring engaging in a groove within the polygonal connection for axially non-positively fixing the respective socket wrench insert (9) on the ratchet wheel (3). Ratschenschlüssel nach mindestens einem der Ansprüche 1 bis 3, gekennzeichnet durch einen mit einem zylindrischen Ab schnitt zusammenwirkenden O-Ring innerhalb der Mehrkantverbindung zur axialen kraftschlüssigen Festlegung des jeweiligen Steckschlüsseleinsatzes (9) am Knarrad (3).Ratchet wrench according to at least one of claims 1 to 3, characterized by one with a cylindrical Ab Cut interacting O-ring within the polygonal connection for the axial non-positive fixing of the respective socket wrench insert (9) on the ratchet wheel (3).
EP19900119123 1989-12-08 1990-10-05 Ratchet key Withdrawn EP0431278A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3940646 1989-12-08
DE3940646 1989-12-08

Publications (2)

Publication Number Publication Date
EP0431278A2 true EP0431278A2 (en) 1991-06-12
EP0431278A3 EP0431278A3 (en) 1992-03-11

Family

ID=6395096

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900119123 Withdrawn EP0431278A3 (en) 1989-12-08 1990-10-05 Ratchet key

Country Status (1)

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EP (1) EP0431278A3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000059686A2 (en) * 1999-04-06 2000-10-12 Ofentavsek Tone Electrically insulated hand tool with a detent mechanism
EP3589452A4 (en) * 2017-02-28 2021-04-07 Milwaukee Electric Tool Corporation Powered ratchet wrench with reversing mechanism
US11413731B2 (en) 2019-06-12 2022-08-16 Milwaukee Electric Tool Corporation Powered ratchet wrench

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR366773A (en) * 1906-06-01 1906-10-11 Alphonse Motsch Advanced Nut Wrench
US1451498A (en) * 1921-08-10 1923-04-10 Gustav A Faitz Ratchet wrench
FR671630A (en) * 1928-04-26 1929-12-16 Outil Mathiaux Et Cie Soc D Ratchet
FR947495A (en) * 1947-06-03 1949-07-04 Ratchet wrench
DE808457C (en) * 1949-04-30 1951-07-16 Karl Heinz Schneider Wrench with ratchet
US2570779A (en) * 1949-10-26 1951-10-09 Lowell Wrench Company Reversible ratchet wrench
US2651230A (en) * 1951-12-28 1953-09-08 Waterval William Socket reducing means for box-type wrenches
DE7244598U (en) * 1972-12-06 1973-07-26 Greiner E Socket for a ratchet
DE2263986A1 (en) * 1972-12-29 1974-07-04 Ernst Greiner COMPACT SOCKET RATCHET COMBINATION
US4276791A (en) * 1979-06-01 1981-07-07 Thompson John W Distributor ratchet wrench
US4328720A (en) * 1980-03-17 1982-05-11 Shiel Walter P Socket wrench and set
US4546677A (en) * 1984-07-23 1985-10-15 Berkich Ronald S Slip-on screwdriver ratchet

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR366773A (en) * 1906-06-01 1906-10-11 Alphonse Motsch Advanced Nut Wrench
US1451498A (en) * 1921-08-10 1923-04-10 Gustav A Faitz Ratchet wrench
FR671630A (en) * 1928-04-26 1929-12-16 Outil Mathiaux Et Cie Soc D Ratchet
FR947495A (en) * 1947-06-03 1949-07-04 Ratchet wrench
DE808457C (en) * 1949-04-30 1951-07-16 Karl Heinz Schneider Wrench with ratchet
US2570779A (en) * 1949-10-26 1951-10-09 Lowell Wrench Company Reversible ratchet wrench
US2651230A (en) * 1951-12-28 1953-09-08 Waterval William Socket reducing means for box-type wrenches
DE7244598U (en) * 1972-12-06 1973-07-26 Greiner E Socket for a ratchet
DE2263986A1 (en) * 1972-12-29 1974-07-04 Ernst Greiner COMPACT SOCKET RATCHET COMBINATION
US4276791A (en) * 1979-06-01 1981-07-07 Thompson John W Distributor ratchet wrench
US4328720A (en) * 1980-03-17 1982-05-11 Shiel Walter P Socket wrench and set
US4546677A (en) * 1984-07-23 1985-10-15 Berkich Ronald S Slip-on screwdriver ratchet

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000059686A2 (en) * 1999-04-06 2000-10-12 Ofentavsek Tone Electrically insulated hand tool with a detent mechanism
WO2000059686A3 (en) * 1999-04-06 2001-03-01 Tone Ofentavsek Electrically insulated hand tool with a detent mechanism
EP3589452A4 (en) * 2017-02-28 2021-04-07 Milwaukee Electric Tool Corporation Powered ratchet wrench with reversing mechanism
US11691253B2 (en) 2017-02-28 2023-07-04 Milwaukee Electric Tool Corporation Powered ratchet wrench with reversing mechanism
US11413731B2 (en) 2019-06-12 2022-08-16 Milwaukee Electric Tool Corporation Powered ratchet wrench

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