EP0246072A1 - Douille auto-ajustante - Google Patents

Douille auto-ajustante Download PDF

Info

Publication number
EP0246072A1
EP0246072A1 EP87304220A EP87304220A EP0246072A1 EP 0246072 A1 EP0246072 A1 EP 0246072A1 EP 87304220 A EP87304220 A EP 87304220A EP 87304220 A EP87304220 A EP 87304220A EP 0246072 A1 EP0246072 A1 EP 0246072A1
Authority
EP
European Patent Office
Prior art keywords
socket
nut
sockets
rod
outer socket
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Withdrawn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
EP87304220A
Other languages
German (de)
English (en)
Inventor
John Hurst
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
Publication of EP0246072A1 publication Critical patent/EP0246072A1/fr
Withdrawn legal-status Critical Current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
    • B25B13/10—Spanners; Wrenches with adjustable jaws
    • B25B13/102—Spanners; Wrenches with adjustable jaws composed of a plurality of sockets slidable in each other

Definitions

  • This invention relates to a self-adjusting socket and to an adjustable socket spanner which in use entirely or substantially surrounds a nut or the head of a bolt or other threaded fixing member for the purpose of tightening or loosening the same.
  • Sockets and ring spanners are generally preferred by engineers because they engage a nut or bolt head at the greatest number of points in operation. Further, currently used ring spanners and sockets are not adjustable so that an engineer needs a lot of them if he is to feel properly equipped.
  • the aim of the present invention is to reduce the above difficulties and provide a self-adjusting socket or spanner which is more readily and cheaply assembled.
  • an adjustable socket device comprising: an outer socket, open at one end and closed at the other and shaped to engage a nut or the like; a plurality of inner sockets geometrically similar to and disposed within the outer socket, each inner socket being a sliding close fit within one of the outer socket and the outwardly adjacent inner socket; springs, having successively increasing spring forces, urging respective ones of said inner sockets longitudinally of said outer socket towards the open end; and a rod disposed within the outer socket and passing through said inner sockets and respective limiting means on said rod effective to limit movement of the inner sockets longitudinally of the outer socket beyond their position of use, the inner sockets being closed at their ends remote from the open end of the outer socket.
  • inner sockets there is a number of inner sockets, slidable within the outer socket and offering alternative sizes of socket to engage correspondingly sized nuts.
  • the rod passes through the sockets and has one or a plurality of radial enlargements, corresponding to the number of inner sockets, beyond which the sockets cannot pass in a direction outwardly of the outer socket.
  • Springs acting on the inner sockets at one end react at the otherend against the interior of other inner sockets or the interior of the outer socket. The spring forces are so designed that each socket is harder to move into the inner socket than the one next smallest in size.
  • the rod can be easily provided with the springs and the inner sockets and then located inside the outer socket, for instance by extending through the top thereof and engaging a nut. Further, the rod can be slidable relative to the outer socket which is particularly useful where large nuts are engaged to prevent interference between the end of the rod and the nut.
  • an adjustable arrangement is provided without the need for complex and costly retaining means and without the need to bend over retaining lips on the slidable inserts or inner sockets.
  • the invention also provides a spanner provided with at least one such device.
  • a spanner can include a handle extending from the or each socket device to be manually gripped for the purpose of turning the device.
  • the handle can be integrally fixed, normally perpendicular to the axis of the sockets, or it could be separate from the socket device to engage it in use.
  • the device can be one of several interchangeable socket devices provided in a set to engage nuts, each having projections or shaped parts which are to be engaged with a manually or mechanically operable tool, for the purpose of rotation.
  • Figures l, 2 and 3 are longitudinal sectional views of an embodiment of the invention in three alternative dispositions of use.
  • FIG. l, 2 and 3 Shown in Figures l, 2 and 3 is a device comprising an outer socket 30 which is closed at one end.
  • the interior of the socket is hexagonal so that it can engage a nut of that shape.
  • a recess is provided in the closed end of the socket at 43.
  • This can take a variety of forms but is preferably square in shape so as to be engaged by a square projection from a handle which is used on this and a number of other similar socket devices.
  • Three slidable inserts or inner sockets 3l, 32, 33 are located within the outer socket 30.
  • Extending through the outer socket 30 is a rod 34 which has a stepped formation and which extends through apertures in the slidable inserts 3l, 32, 33.
  • the smallest insert 3l is limited from movement beyond the end of the rod by a rim 35 and in succession the inserts 32 and 33 are limited in outward movement by steps 36 and 37.
  • the rod itself is supported within the socket by being threadedly engaged with a nut 38, located in a recess 39, which is shown to be of smaller size than the recess 43.
  • recess 39 could be a continuation of recess 43 with the same cross section.
  • the recess 39 has such a cross-sectional shape and size that the nut 38 is a close fit within it. The nut 38 is thereby prevented from rotating with the rod 34 when the rod 34 is screwed into or out of it during assembly or disassembly of the socket.
  • the end 35 of the rod may have a transverse slot enabling assembly and positioning with the use of a screwdriver with the nut 38 being held against rotation in the recess 39.
  • Springs 40, 4l and 42 act respectively on the inner end faces of the inserts 3l, 32, 33 and are between those end faces and next inward adjacent faces of other sockets or of the outer socket 30. These springs have successively increasing spring forces so that 40 is the most easily compressed and 42 the most difficult to compress. Shown slightly exaggerated is the way in which slidable inserts 3l, 32, 33 are stepped back from the orifice of the outer socket 30 as this is found to assist engagement. In use, if a nut to be turned fits within insert 3l the socket is used in the configuration shown in Figure l.
  • Figure 3 shows the position where all three inserts are moved out of the position of use as the nut if of a size to engage the interior of the outer socket 30.
  • the inserts having closed ends are considerably stronger than the sleeve type of insert previously proposed for multi-fitting sockets. Formation is relatively easy as there is no delicate formation of out-turned lips and the mechanism for preventing movement of the inserts outwardly of the outer socket is simple and easy to effect.
  • the socket is readily assembled, the slidable inserts and springs are threaded on the bolt 34 which is then screwed in as described using the nut 38.
  • the assembly has the advantage over previous constructions that it would be possible readily to supply alternative sets of inserts, for instance for imperial as opposed to metric sizes or vice versa which would have slightly thinner or thicker walls of inserts and allow a single main socket and a corresponding handle to be used for a still further number of sizes of nuts.
  • the different spring forces can be obtained by using the same spring material but having reduced spring diameters as between the springs 40, 4l and 42 which increases the force needed to compress them.
  • more than one spring or, longer springs in a semi-compressed state can be located for instance in place of the spring 42 to as to increase the compressive resistance in respect of the outermost of the slidable inserts.
  • the exterior of the outer socket 30 has a hexagonal shape of a standard size so that the exterior of the socket 30 may be engaged and rotated by a conventional ring, socket or open-ended spanner. This feature allows the socket to be used without the need for a specially adapted handle which is specific to the socket.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP87304220A 1986-05-13 1987-05-12 Douille auto-ajustante Withdrawn EP0246072A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8611683 1986-05-13
GB08611683A GB2190318A (en) 1986-05-13 1986-05-13 Self-adjusting multi-socket spanner

Publications (1)

Publication Number Publication Date
EP0246072A1 true EP0246072A1 (fr) 1987-11-19

Family

ID=10597815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87304220A Withdrawn EP0246072A1 (fr) 1986-05-13 1987-05-12 Douille auto-ajustante

Country Status (2)

Country Link
EP (1) EP0246072A1 (fr)
GB (1) GB2190318A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7062996B2 (en) 2004-10-22 2006-06-20 Johnson Robert L Automatically adjusting gripping device
JP2015212003A (ja) * 2014-05-07 2015-11-26 日産自動車株式会社 締付ソケット及びソケット切り替え方法
CN106976036A (zh) * 2016-01-15 2017-07-25 鑫爵实业股份有限公司 套筒
CN107855968A (zh) * 2017-12-21 2018-03-30 刘鑫 一种套筒及扳手

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5644959A (en) * 1996-05-22 1997-07-08 Media Group Universal socket wrench
AU1892397A (en) * 1997-04-17 1998-10-22 Jin-Chai Cho Socket adapted for turning bolts and nuts of different shapes and sizes
GB2390317A (en) * 2002-07-05 2004-01-07 Mark Playle Nestable socket set
DE102014006051A1 (de) * 2014-04-25 2015-10-29 Christian-Albrechts-Universität Zu Kiel Werkzeug mit einem zumindest zweistufigen, rotationssymetrischen, teleskopisch ein- oder ausfahrbaren, arretierbaren Kraftangriff für drehbare Verbindungselemente

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1618715A (en) * 1925-09-12 1927-02-22 George J C Lammers Multiple-socket wrench
GB458395A (en) * 1936-07-06 1936-12-18 Harold Walter Powell Improvements in or relating to box keys
CH329472A (de) * 1954-05-28 1958-04-30 Scheffler Hellmut Schraubenschlüssel mit selbsttätiger Anpassung der Schlüsselflächen an verschieden grosse Schraubenköpfe
US2938417A (en) * 1958-08-06 1960-05-31 Joseph G Haber Self adjusting socket reducing wrench
US3177910A (en) * 1962-10-04 1965-04-13 Silva Julio A Da Tool handle with retractable tool
FR2036766A1 (fr) * 1969-03-25 1970-12-31 Thirion Robert
DE1603962A1 (de) * 1966-06-29 1971-01-21 Egan Jun Michael M Universal-Steckschluessel
DE2101589A1 (de) * 1971-01-07 1972-09-21 Rackel, Klaus, 5910 Kreuztal; Mayinger, Fritz, 5249 Oettershagen Mehrfachsteckschlüssel
FR2176267A5 (fr) * 1972-03-17 1973-10-26 Lauterbach Ernst
EP0087243A2 (fr) * 1982-02-22 1983-08-31 Andrew Charles Simon Hurst Douille réglable
US4489628A (en) * 1982-08-05 1984-12-25 Nicastro Hector M Multisized fastener driving tool

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1618715A (en) * 1925-09-12 1927-02-22 George J C Lammers Multiple-socket wrench
GB458395A (en) * 1936-07-06 1936-12-18 Harold Walter Powell Improvements in or relating to box keys
CH329472A (de) * 1954-05-28 1958-04-30 Scheffler Hellmut Schraubenschlüssel mit selbsttätiger Anpassung der Schlüsselflächen an verschieden grosse Schraubenköpfe
US2938417A (en) * 1958-08-06 1960-05-31 Joseph G Haber Self adjusting socket reducing wrench
US3177910A (en) * 1962-10-04 1965-04-13 Silva Julio A Da Tool handle with retractable tool
DE1603962A1 (de) * 1966-06-29 1971-01-21 Egan Jun Michael M Universal-Steckschluessel
FR2036766A1 (fr) * 1969-03-25 1970-12-31 Thirion Robert
DE2101589A1 (de) * 1971-01-07 1972-09-21 Rackel, Klaus, 5910 Kreuztal; Mayinger, Fritz, 5249 Oettershagen Mehrfachsteckschlüssel
FR2176267A5 (fr) * 1972-03-17 1973-10-26 Lauterbach Ernst
EP0087243A2 (fr) * 1982-02-22 1983-08-31 Andrew Charles Simon Hurst Douille réglable
US4489628A (en) * 1982-08-05 1984-12-25 Nicastro Hector M Multisized fastener driving tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7062996B2 (en) 2004-10-22 2006-06-20 Johnson Robert L Automatically adjusting gripping device
JP2015212003A (ja) * 2014-05-07 2015-11-26 日産自動車株式会社 締付ソケット及びソケット切り替え方法
CN106976036A (zh) * 2016-01-15 2017-07-25 鑫爵实业股份有限公司 套筒
CN107855968A (zh) * 2017-12-21 2018-03-30 刘鑫 一种套筒及扳手

Also Published As

Publication number Publication date
GB2190318A (en) 1987-11-18
GB8611683D0 (en) 1986-06-18

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