EP0247263A1 - Dispositif pour changer rapidement des pièces d'insertion pour tournevis standard - Google Patents

Dispositif pour changer rapidement des pièces d'insertion pour tournevis standard Download PDF

Info

Publication number
EP0247263A1
EP0247263A1 EP86307852A EP86307852A EP0247263A1 EP 0247263 A1 EP0247263 A1 EP 0247263A1 EP 86307852 A EP86307852 A EP 86307852A EP 86307852 A EP86307852 A EP 86307852A EP 0247263 A1 EP0247263 A1 EP 0247263A1
Authority
EP
European Patent Office
Prior art keywords
tip end
screwdriver tip
screwdriver
handle
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Withdrawn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
EP86307852A
Other languages
German (de)
English (en)
Inventor
Jinn-Lih Chen
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 EP0247263A1 publication Critical patent/EP0247263A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F1/00—Combination or multi-purpose hand tools
    • B25F1/02—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements
    • B25F1/04—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements wherein the elements are brought into working positions by a pivoting or sliding movement
    • 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
    • B25B15/00—Screwdrivers
    • 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
    • B25B15/00—Screwdrivers
    • B25B15/02—Screwdrivers operated by rotating the handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/08—Handle constructions with provision for storing tool elements
    • B25G1/085—Handle constructions with provision for storing tool elements for screwdrivers, wrenches or spanners

Definitions

  • This invention relates to a device which can quickly replace a standard screwdriver tip end repeatedly.
  • screwdrivers Most of the currently used screwdrivers may be classified into following categories: A screwdriver, of which the handle and its tip end are fixedly connected together; another kind of screwdriver, which comprises a handle and a plurality of tip ends in different shapes and sizes to be mounted on or dismounted from the handle.
  • a screwdriver of which the handle and its tip end are fixedly connected together
  • another kind of screwdriver which comprises a handle and a plurality of tip ends in different shapes and sizes to be mounted on or dismounted from the handle.
  • the whole screwdriver has to be discarded upon the tip end being damaged; further; one screwdriver of that category can only be good for operation on one type of screw, and it is rather inconcenient to a user who is working on various types of screw heads, and therefore it is deemed the major drawback of that screwdriver.
  • the handle of the screwdriver is adaptable to a plurality of tip ends of differentishapes and sizes. Upon replacing a tip end; the user may pull out the tip end and insert another tip end of a right size in the handle. That pulling out and inserting in operations are considered being still not convenient to the user.
  • screwdriver which contains several screwdriver tip ends.
  • the tip ends can be replaced or changed quickly by means of pushing and pulling the handle stem.
  • the tail end of the screwdriver tip end is formed into a shape something like a barbed hook through special process so as to be engaged with a channel on the end of the handle stem as shown in Fig.1; as a result; the ordinary conventional screwdriver tip ends that were not processed specifically will be unable to adapt to the handle stem.
  • the barbed hook portion (A) on the tip end and the channel (B) on the end of the handle stem as shown in Fig. 1 are rather weak in structure, they are susceptible to breaking upon the handle being often twisted with force during normal operation.
  • This invention provides a device which can quickly replace a standard screwdriver tip end repeatedly; that device comprises a handle, a magnetic piece, a lower cap, a body portion; an upper cap; and a dodecagon socket.
  • the body portion mounted between the upper and lower caps can be rotated freely so as to facilitate the user to select a screwdriver tip end at any time desired.
  • a sleeve socket on the upper cap various types and sizes of screwdriver tip ends can be mounted therein; whereby the objects of simplicity and interchangeability of parts are achieved.
  • the prime object of the present invention is to provide a screwdriver device which is adaptable to various kinds screwdriver tip ends in terms of shapes and sizes so as to simplify the parts, and to easily and quickly replace the tip end desired.
  • a disassembled view of the present invention which comprises a handle 1; a magnetic piece 2; a lower cap 3, a body portion 4, an upper cap 5, and a dodecagon socket 6.
  • the body portion 4 may be made of a transparent material.
  • FIGs.5 and 6 there is shown the theory of how to push or change a screwdriver tip end quickly.
  • one screwdriver tip end 7 has been pushed out after the handle stem 11 being pushed forwards as shown with an arrow. Since the screwdriver tip end 7 is attracted with the magnetic piece 2 and fixed with the dodecagon socket 6; the tip end 7 will rotate upon the handle stem 11 being rotated; the dodecagon socket 6 that is used for connecting the handle stem 11 and the screwdriver tip end 7 will also be rotated together with the handle stem synchronously. Since the screwdriver tip ends 7 are all designed and made into a uniform specifications or standards; they can be replaced, in case of being damaged, any time by pulling out the damaged one and replacing with a new one; and this is a prime feature of the present invention.
  • Fig.6 there is shown, with an arrow, the handle stem 11 being pulled backwards and being stopped on the bottom of the body portion 4; then, the screwdriver tip end 7 will be stored back in one of the holes 41 of the body portion 4. The user may further rotate the body portion 4 to select a screwdriver tip end 7 desired, and then push it out as shown in Fig.5 for intended operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP86307852A 1986-05-28 1986-10-10 Dispositif pour changer rapidement des pièces d'insertion pour tournevis standard Withdrawn EP0247263A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8612947 1986-05-28
GB08612947A GB2190865A (en) 1986-05-28 1986-05-28 Interchangeable tip screwdriver

Publications (1)

Publication Number Publication Date
EP0247263A1 true EP0247263A1 (fr) 1987-12-02

Family

ID=10598552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86307852A Withdrawn EP0247263A1 (fr) 1986-05-28 1986-10-10 Dispositif pour changer rapidement des pièces d'insertion pour tournevis standard

Country Status (2)

Country Link
EP (1) EP0247263A1 (fr)
GB (1) GB2190865A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660229A1 (fr) * 1989-06-07 1991-10-04 Chiang Hung Hsi Outil a usages multiples.
WO1998032569A1 (fr) * 1997-01-22 1998-07-30 Witt, John, Michael Unite de tournevis pour inserts de tournevis
GB2372954A (en) * 2000-09-13 2002-09-11 Chen-Chi Chang Screwdriver Grip
CN109333429A (zh) * 2018-10-26 2019-02-15 北京首航艾启威节能技术股份有限公司 一种便携式加磁螺丝刀

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219539B (en) * 1988-06-10 1992-08-26 Archibald Mervin Mckenzie Multiple bit screwdriver
DE9411520U1 (de) * 1994-07-15 1995-11-16 wolfcraft GmbH, 56745 Weibern Bit-Schrauber
GB2383549A (en) * 2001-12-10 2003-07-02 Janco Design Ltd A tool for use with a plurality of interchangeable bits

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US532823A (en) * 1895-01-22 Multiple screw-driver
US2550775A (en) * 1949-07-13 1951-05-01 Wade Stevenson Magnetic screw driver
EP0152169A1 (fr) * 1984-02-08 1985-08-21 Tekna-Tool, Inc. Outil à fonction multiple

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US532823A (en) * 1895-01-22 Multiple screw-driver
US2550775A (en) * 1949-07-13 1951-05-01 Wade Stevenson Magnetic screw driver
EP0152169A1 (fr) * 1984-02-08 1985-08-21 Tekna-Tool, Inc. Outil à fonction multiple

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2660229A1 (fr) * 1989-06-07 1991-10-04 Chiang Hung Hsi Outil a usages multiples.
WO1998032569A1 (fr) * 1997-01-22 1998-07-30 Witt, John, Michael Unite de tournevis pour inserts de tournevis
GB2372954A (en) * 2000-09-13 2002-09-11 Chen-Chi Chang Screwdriver Grip
CN109333429A (zh) * 2018-10-26 2019-02-15 北京首航艾启威节能技术股份有限公司 一种便携式加磁螺丝刀

Also Published As

Publication number Publication date
GB2190865A (en) 1987-12-02
GB8612947D0 (en) 1986-07-02

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19880804