EP0128883A1 - Schlagschraubenschlüssel - Google Patents

Schlagschraubenschlüssel Download PDF

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Publication number
EP0128883A1
EP0128883A1 EP84850120A EP84850120A EP0128883A1 EP 0128883 A1 EP0128883 A1 EP 0128883A1 EP 84850120 A EP84850120 A EP 84850120A EP 84850120 A EP84850120 A EP 84850120A EP 0128883 A1 EP0128883 A1 EP 0128883A1
Authority
EP
European Patent Office
Prior art keywords
rod
organ
key arrangement
shaped organ
handle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84850120A
Other languages
English (en)
French (fr)
Other versions
EP0128883B1 (de
Inventor
Rolf Näslund
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 AT84850120T priority Critical patent/ATE44484T1/de
Publication of EP0128883A1 publication Critical patent/EP0128883A1/de
Application granted granted Critical
Publication of EP0128883B1 publication Critical patent/EP0128883B1/de
Expired 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
    • B25B19/00—Impact wrenches or screwdrivers

Definitions

  • the present invention relates to a key arrangement and in particular to a key arrangement of a kind which is intended to turn a component forming part of a screwed joint.
  • the key arrangement exhibits a sleeve, pin or similar capable of interacting with the component, a rod-shaped organ capable of interacting with the sleeve, a striking arm capable of rotating in conjunction with the organ and a handle designed for a hand holding the key arrangement.
  • the striking arm consists of a main part and a mass concentration formed at one end or preferably at both ends, and the main part is attached to the rod-shaped organ so that it is free to rotate in such a way that the striking arm can be turned between a number of stop positions so that, by coming to a halt in a particular stop position, it is able to transfer kinetic energy associated with the turning motion as shock torque to the rod-shaped organ and the component.
  • At Least one stop position is executed as a support arranged adjacent to the striking arm, securely connected to the rod-shaped organ and able to absorb impact forces from the striking arm.
  • the rod-shaped organ is also arranged on or adjacent to a centre Line of the handle.
  • Swedish Patent AppLication 8104104-8 is previously disclosed a key arrangement designed to turn a component forming part of a screwed joint, designated as an impact key, said key arrangement being intended to be capable of releasing and to a certain extent also of tightening the screwed joint, for which purpose it exhibits a main shaft, the end of which is provided with a means of contact such as washers or a flat steel plate attached by means of a strong bolted joint, or between which a so-caLLed striking arm is mounted on a central guide, and whose function derives from the striking arm being caused to move in the desired direction of force, when its kinetic energy will be absorbed by end stops, impact bushes or similar so that the torque will be transmitted in the form of short but intensive torque pulses via a transmission tube to the sleeve which is used to release or to tighten one part of the screwed joint.
  • a means of contact such as washers or a flat steel plate attached by means of a strong bolted joint, or between which a
  • PreviousLy disclosed designs have to an overwhelming extent been executed with fixed handles, and a major requirement exists, therefore, in the case of key arrangements of the aforementioned nature to create conditions such that the handle may be so arranged as to be capable of rotating in relation to the rod-shaped organ, said rod-shaped organ being executed for this purpose with a part about which the handle is so arranged as to be free to rotate.
  • the present invention relates to a key arrangement designed to turn a component forming part of a screwed joint and in particular to a key arrangement of a kind which is intended to exhibit a sleeve, pin or similar capable of interacting with the component, a rod-shaped organ capable of interacting with the sleeve, a striking arm capable of rotating in conjunction with the organ and a handle designed for a hand holding the key arrangement, said striking arm consisting'of a main part and a mass concentration formed at one end or preferably at both ends, with the main part being attached to the rod-shaped organ so that it is free to rotate in such a way that the striking arm can be turned between a number of stop positions so that, by coming to a halt in a particular stop position, it is able to transfer kinetic energy associated with the turning motion as shock torque to the rod-shaped organ and the component, with at Least one stop position being executed as a support arranged adjacent to the striking arm, securely connected to the rod-shaped organ and able to absorb impact forces from the striking
  • the present invention proposes that the handle and the rod-shaped organ be connected to each other by the expedient of one of them exhibiting a pin and the other exhibiting a recess corresponding to the pin, and by the part situated between the handle and the organ being so arranged as to serve as a bearing area for the striking arm during its turning motion.
  • the invention also proposes that the support may be executed in the form of Legs formed on a 'U'-shaped component, and that said component shall be capable of being attached to the rod-shaped organ in such a way that it is not free to rotate.
  • the support may also be executed in the form of a flat disc intended to absorb impact forces from one or more projecting parts formed on the striking arm.
  • the handle should preferably be so arranged that it is free to rotate in relation to the rod-shaped organ, and the rod-shaped organ should preferably be so executed as to exhibit a part about which the handle is so arranged as to be free to rotate.
  • the rod-shaped organ may also be so executed as to exhibit a tubular part into which a bar which is securely attached to the handle may be introduced.
  • the invention also proposes the possibility of causing the sleeve, pin or similar to be attached to the rod-shaped organ in such a way that it is capable of being removed from it.
  • the key arrangement consists of a small number of component parts which are able easily to interact with each other so that they may be caused to interact with each other in order to influence the component parts of the screwed joint, but where said components are capable, when not in use, of being combined together into a compact unit for storage.
  • Figure 1 thus shows a perspective view of a key arrangement 1 designed to turn a component forming part of a screwed joint.
  • the component part of the screwed joint is not shown in Figure 1, although said component part is intended to interact with a sleeve 2, a pin or a similar organ.
  • the key arrangement also exhibits a rod-shaped organ 3 capable of interacting with the sleeve 2, a striking arm 4 capable of rotating in conjunction with the organ 3 and a handle 5 designed for a hand holding the key arrangement 1 .
  • the striking arm 4 consists of a main part 4a together with mass concentrations 4b executed at one end, or preferably at both ends in accordance with the embodiment shown in Figure 1.
  • the main part 4a is attached by means of a hole 4c to the rod-shaped organ 3 in such a way as to be free to rotate so that the striking arm 4 can be turned between a number of stop positions so that, by coming to a halt in a particular stop position, it is able to transfer kinetic energy associated with the turning motion as shock torque to the rod-shaped organ 3 and to the component 2 .
  • At Least one stop position is executed as a support 6 arranged adjacent to the striking arm, securely connected to the rod-shaped organ 3 and able to absorb impact forces from the striking arm 4 .
  • the centre Line 3a of the rod-shaped organ 3 must also be arranged on or adjacent to a centre Line 5a of the handle.
  • the handle 5 and the rod-shaped organ 3 be connected together by the expedient of one of them exhibiting a pin 5b and the other exhibiting a recess 3b corresponding to the pin.
  • a part 6a formed between the handle 5 and the organ 3 shall also be so arranged as to serve as a bearing area for the striking arm 4 during its turning motion.
  • the present invention proposes that the support 6 be executed from Legs 6' formed on a 'U'-shaped component 6 .
  • the component 6 is attached to the rod-shaped organ 3 in such a way as to be free to rotate via a welded joint not shown in the Figure.
  • the handle 5 be so arranged that it is free to rotate in relation to the rod-shaped organ 3 and the striking arm 4 , thereby enabling the striking arm 4 and the organ 3 to rotate without corresponding rotation of the handle 5 .
  • the rod-shaped organ 3 may also be executed with a part 3' to which or about which the handle 5 is so arranged that it is free to rotate.
  • Figure 1 shows the rod-shaped organ 3 to have been executed with a tubular part 3' into which a bar 5b which is securely attached to the handle 5 may be introduced.
  • the sleeve 2 or, in the event of the sleeve 2 having been replaced by a pin or similar, the Latter may be attached in a previously disclosed manner to the rod-shaped organ in such a way that it is capable of being removed.
  • Figure 2 shows more usual dimensioning of the support 6 in relation to the width of the arm 4 , from which it will be appreciated that the distance between the Legs 6 1 should exceed the width of the arm 4 by a factor of between 1.5 and 4.0, although the most practical value is of the order of 3.0.
  • the present invention proposes that the Length of the rod-shaped unit 3 together with the sleeve 2 and the support 6 be so dimensioned as to be Less than the distance between the opposing surfaces of the mass concentrations 4b , and that the handle 5 and any bar 5b which may be attached to it be similarly dimensioned so as to be capable of being stored directly adjacent to the striking arm 4 between opposing end parts of the mass concentrations 4 b .
  • This will produce the advantage that the support 6 will Lie next to one of the mass concentrations 4b whilst the sleeve 2 will Lie next to the other mass concentration 4b .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Amplifiers (AREA)
  • Push-Button Switches (AREA)
  • Lock And Its Accessories (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP84850120A 1983-04-13 1984-04-12 Schlagschraubenschlüssel Expired EP0128883B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84850120T ATE44484T1 (de) 1983-04-13 1984-04-12 Schlagschraubenschluessel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8302037A SE8302037D0 (sv) 1983-04-13 1983-04-13 For vridning av en i ett skruvforband ingaende del avsedd nyckelanordning
SE8302037 1983-04-13

Publications (2)

Publication Number Publication Date
EP0128883A1 true EP0128883A1 (de) 1984-12-19
EP0128883B1 EP0128883B1 (de) 1989-07-12

Family

ID=20350773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84850120A Expired EP0128883B1 (de) 1983-04-13 1984-04-12 Schlagschraubenschlüssel

Country Status (7)

Country Link
EP (1) EP0128883B1 (de)
JP (1) JPS6039078A (de)
AT (1) ATE44484T1 (de)
AU (1) AU579315B2 (de)
DE (1) DE3478907D1 (de)
FI (1) FI841481A (de)
SE (1) SE8302037D0 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002291A1 (en) * 1985-10-08 1987-04-23 Andersson Sten Ake An impulse torque tool for a component of a bolted joint
GB2217245A (en) * 1988-04-12 1989-10-25 Chang Ching Chi Impact wrench
GB2298811A (en) * 1995-03-16 1996-09-18 John Kevan Walsh Wheel brace
JP2013173216A (ja) * 2012-02-23 2013-09-05 Nihon Career Ind Co Ltd 衝撃レンチ

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE457362C (de) * 1928-03-14 Blanche Depeaux Geb Belle Brustleier, insbesondere zum An- und Abziehen von Schraubenmuttern und -bolzen
DE861379C (de) * 1951-07-12 1952-12-29 Robert Marie Gilbert Geais Schraubensteckschluessel, bestehend aus Schaft und Handgriff
US2795158A (en) * 1956-01-17 1957-06-11 John L Croll Impact wrench
GB837892A (en) * 1955-07-25 1960-06-15 British Thomson Houston Co Ltd Improvements in devices for tightening and loosening screws, nuts and bolts
US3157074A (en) * 1962-06-27 1964-11-17 Lloyd M Durkee Hand operated impact wrench
DE1810293A1 (de) * 1968-11-22 1970-06-11 Bayer Ag N-Fluoracetylamino-methyl-harnstoffe und Verfahren zu ihrer Herstellung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE457362C (de) * 1928-03-14 Blanche Depeaux Geb Belle Brustleier, insbesondere zum An- und Abziehen von Schraubenmuttern und -bolzen
DE861379C (de) * 1951-07-12 1952-12-29 Robert Marie Gilbert Geais Schraubensteckschluessel, bestehend aus Schaft und Handgriff
GB837892A (en) * 1955-07-25 1960-06-15 British Thomson Houston Co Ltd Improvements in devices for tightening and loosening screws, nuts and bolts
US2795158A (en) * 1956-01-17 1957-06-11 John L Croll Impact wrench
US3157074A (en) * 1962-06-27 1964-11-17 Lloyd M Durkee Hand operated impact wrench
DE1810293A1 (de) * 1968-11-22 1970-06-11 Bayer Ag N-Fluoracetylamino-methyl-harnstoffe und Verfahren zu ihrer Herstellung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002291A1 (en) * 1985-10-08 1987-04-23 Andersson Sten Ake An impulse torque tool for a component of a bolted joint
GB2217245A (en) * 1988-04-12 1989-10-25 Chang Ching Chi Impact wrench
GB2298811A (en) * 1995-03-16 1996-09-18 John Kevan Walsh Wheel brace
GB2298811B (en) * 1995-03-16 1997-03-19 John Kevan Walsh Wheel brace
JP2013173216A (ja) * 2012-02-23 2013-09-05 Nihon Career Ind Co Ltd 衝撃レンチ

Also Published As

Publication number Publication date
FI841481A0 (fi) 1984-04-13
AU2703084A (en) 1985-01-03
SE8302037L (de) 1984-09-10
FI841481A (fi) 1984-10-14
JPS6039078A (ja) 1985-02-28
DE3478907D1 (en) 1989-08-17
AU579315B2 (en) 1988-11-24
SE8302037D0 (sv) 1983-04-13
ATE44484T1 (de) 1989-07-15
EP0128883B1 (de) 1989-07-12

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