DE700320C - Torque safety wrench - Google Patents

Torque safety wrench

Info

Publication number
DE700320C
DE700320C DE1938F0085513 DEF0085513D DE700320C DE 700320 C DE700320 C DE 700320C DE 1938F0085513 DE1938F0085513 DE 1938F0085513 DE F0085513 D DEF0085513 D DE F0085513D DE 700320 C DE700320 C DE 700320C
Authority
DE
Germany
Prior art keywords
key
wrench
handle
lever arm
torque
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.)
Expired
Application number
DE1938F0085513
Other languages
German (de)
Inventor
Max Forst
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE1938F0085513 priority Critical patent/DE700320C/en
Application granted granted Critical
Publication of DE700320C publication Critical patent/DE700320C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1427Arrangement 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

Description

Drehmoment-Sicherheitsschraubenschlüssel Die Erfindung bezieht sich auf einen Drehmoment-Sicherheitsschraubenschlüsselmit einem an dem einen Ende des Schlüsselstiels quer züi diesem angeordneten, die Schraubenmutter oder den Scliraubenkopf rund umfassenden Schlüsselmaul.Torque Safety Wrench The invention relates to on a torque wrench with one at one end of the The key handle is arranged across this, the screw nut or the screw head around comprehensive keyhole.

Es ist bereits bekannt, das offene Schlüsselmaul eines Schraubenschlüssels auf eine gewisse Länge in den Schlüsselstiel hineinzuschlitzen, um an dem Schlüsselniaul einen Hebelarrn zu bilden, damit das Maul bei zu großem Drehmoment über die Schraubenkanten rutschen kann. Bei einem Schlüssel mit offenem Alaul läßt sich zwar durch den in den Schlüsselstiel hineinragenden Schlitz ein Hebelarm bilden. Diese Maßnahme würde jedoch bei einem Schlüssel mit geschlossenem Maul keinen Hebelarm schaff en.The open wrench mouth of a wrench is already known Slit into the key handle to a certain length in order to be able to pull the key to form a lever arm so that the mouth over the screw edges if the torque is too high can slip. In the case of a key with an open alaul, the in the slot protruding into the key shaft form a lever arm. This measure would however, do not create a lever arm with a key with a closed mouth.

Die Bildung eines Hebelarmes bei einem Schlüssel mit geschlossenem Maul mittels eines Schlitzes und eine einfache und sichere Abstützung des Hebelarmes sind der Zweck der Erfindung, die darin besteht, daß das Maul des Schlüssels durch einen bis auf eine gewisse Länge in den Stiel des Schlüssels reichenden und am Rücken des Schlüsselstiels auslaufenden Ausschnitt offen geschlitzt und hierdurch an dem Schlüsselmaul ein im Rücken des Schlüsselstiels stehender Hebelarm gebildet ist, gegen den ein auf den Schlüsselstiel verstellbar aufgesetzter federnder Arm in Spannung steht.The formation of a lever arm in a key with a closed Mouth by means of a slot and a simple and safe support of the lever arm are the purpose of the invention, which is that the mouth of the key through one that reaches into the handle of the key to a certain length and on the back of the key stem, slotted open and thereby attached to the Key mouth a lever arm standing in the back of the key handle is formed, against which a resilient arm, which is adjustable on the key handle, is in tension stands.

Die verstellbare Anordnung des auf den Schlüsselstiel aufgesetzten federnden Armes ermöglicht ferner eine leichte Einstellung des gewünschten Drehmoments.The adjustable arrangement of the attached to the key handle resilient arm also allows easy setting of the desired torque.

Auf der Zeichnung ist der Erfindungsgegenstand in einem Ausführungsbeispiel veranschaulicht. Es zeigen Abb. i den Drehmoment-Sicherheitsschraubenschlüssel in Ansicht und Abb. 2 und 3 in Seitenansicht.The subject matter of the invention is illustrated in an exemplary embodiment in the drawing. Fig. I shows the torque safety wrench in a view and Figs. 2 and 3 show a side view.

Mit i ist das Maul und mit 2 der Stiel des Drehmoment-Sicherheitsschraubenschlüssels bezeichnet. Mit 3 ist der bis auf eine gewisse Länge in den Schlüsselstie12 reichende und am Rücken desselben auslaufende Ausschnitt bezeichnet, durch den das Schlüsselmaul i offen geschlitzt und an diesem im Rücken des SchlüsselStielS2 ein Hebelarm4 gebildet U ist. Auf den Schlüsselstie12 ist mit einem U-förmigen Führungsstück 5 ein federnder Arm6 verstellbar aufgesetzt. An dem offenen Ende des Führungsstückes 5 ist auf einem Bolzen7 eine gegen die Schmalkante des Schlüsselstiels ?- wirkende und mittels eines umlegbaren Armes 8 drehbare ausmittige Scheibeg aufgesetzt. Mittels der ausmittig wirkenden Scheibe 9 kann der federnde Arm 6 in Rasten i o der Rückenkante des SchlüsselstielS 2 an diesem so festgestellt werden, daß dcr Angriffspunkt des federnden Armes 6 an dem Hebelarm 4 des Schlüsselmaules i in einem kleineren oder größeren Abstande von diesem liegt. Hierdurch kann das gewünschte Drehmoment des Sicherheitsschraubenschlüssels leicht eingestellt werden.With i the mouth and with 2 the handle of the torque safety wrench is designated. The cutout extending up to a certain length into the key handle12 and terminating at the back of the key is designated by 3 , through which the keyhole i is slit open and a lever arm 4 is formed on this in the back of the key handleS2. Schlüsselstie12 on the U-shaped guide piece 5 is mounted a resilient ARM6 adjustable with a. ? Acting and rotatable by means of a fold-down arm 8 Scheibeg off-center placed - at the open end of the guide piece 5 is against the narrow edge of the key stem is at a Bolzen7. By means of the eccentrically acting disk 9 , the resilient arm 6 can be fixed in notches i o on the back edge of the key handle 2 so that the point of application of the resilient arm 6 on the lever arm 4 of the key mouth i is at a smaller or greater distance therefrom. This allows the desired torque of the safety wrench to be set easily.

Claims (1)

PATrtNTANSPRUCH Drehmoment-Sicherheitsschraubenschlussel mit einem an dem einen Ende des Schlüsselstiels quer zu diesem angeordneten, die Schraubenmutter oder den Schraubenkopf der anzuziehenden Schraube rund umfassenden Schlüsselmaul, dadurch gekennzeichnet, daß das Schlüsselmaul (i) durch einen bis auf eine gewisse Länge in den Schlüsselstiel (2) reichenden und am Rücken des Schlüsselstiels auslaufenden Ausschnitt (3) offen geschlitzt und hierdurch an dem Schlüsselmaul (i) ein im Rücken des Schlüsselstiels (2) stehender Hebelarm (4) gebildet ist, gegen den der auf den Schlüsselstiel (2) verstellbar auf-,gesetzte federnde Arm (6) in Spannung steht.PATTERN CLAIM Torque safety wrench with a wrench opening arranged at one end of the wrench handle transversely to the latter and encompassing the nut or the screw head of the screw to be tightened, characterized in that the wrench opening (i) is inserted into the wrench handle (2 ) extending and at the back of the key handle opening (3) openly slotted and thereby a lever arm (4) standing in the back of the key handle (2) is formed on the key handle (2) against which the adjustable on the key handle (2) is formed. , set resilient arm (6) is in tension.
DE1938F0085513 1938-08-20 1938-08-20 Torque safety wrench Expired DE700320C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1938F0085513 DE700320C (en) 1938-08-20 1938-08-20 Torque safety wrench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1938F0085513 DE700320C (en) 1938-08-20 1938-08-20 Torque safety wrench

Publications (1)

Publication Number Publication Date
DE700320C true DE700320C (en) 1940-12-18

Family

ID=7114503

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1938F0085513 Expired DE700320C (en) 1938-08-20 1938-08-20 Torque safety wrench

Country Status (1)

Country Link
DE (1) DE700320C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749786A (en) * 1951-10-26 1956-06-12 Forges Stephanoises Sa Des Predetermined torque release wrench
DE3139374A1 (en) * 1981-10-03 1983-04-14 Dr. Staiger, Mohilo + Co GmbH, 7060 Schorndorf Mechanical torque wrench (torque measurement outside the centre of application)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749786A (en) * 1951-10-26 1956-06-12 Forges Stephanoises Sa Des Predetermined torque release wrench
DE3139374A1 (en) * 1981-10-03 1983-04-14 Dr. Staiger, Mohilo + Co GmbH, 7060 Schorndorf Mechanical torque wrench (torque measurement outside the centre of application)

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