GB2019283A - Tool-fastener cooperation to retain fastener - Google Patents

Tool-fastener cooperation to retain fastener

Info

Publication number
GB2019283A
GB2019283A GB7843175A GB7911600A GB2019283A GB 2019283 A GB2019283 A GB 2019283A GB 7843175 A GB7843175 A GB 7843175A GB 7911600 A GB7911600 A GB 7911600A GB 2019283 A GB2019283 A GB 2019283A
Authority
GB
United Kingdom
Prior art keywords
fastener
tool
retain
cooperation
screwdriver
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
GB7843175A
Other versions
GB2019283B (en
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 GB2019283A publication Critical patent/GB2019283A/en
Application granted granted Critical
Publication of GB2019283B publication Critical patent/GB2019283B/en
Expired legal-status Critical Current

Links

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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • B25B23/105—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
    • B25B23/106—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit the driving bit being a blade
    • 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
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/007—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with blade of flat or substantially flat cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool

Abstract

A screwdriver or like implement is so engageable with the end of a screw 13 or other type of fastener to avoid inadvertent disengagement in the radial and axial directions. The screwdriver has a bar portion 31 perpendicular to the blade 21 to engage in a recess 25 below the top surface 12 of the screw 13. Further radial holding is provided by a spring finger 61 which presses on the side of the fastener lead. <IMAGE>
GB7843175A 1978-04-19 1979-04-03 Tool fastening cooperation to retain fastener Expired GB2019283B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89759178A 1978-04-19 1978-04-19

Publications (2)

Publication Number Publication Date
GB2019283A true GB2019283A (en) 1979-10-31
GB2019283B GB2019283B (en) 1982-07-28

Family

ID=25408102

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7843175A Expired GB2019283B (en) 1978-04-19 1979-04-03 Tool fastening cooperation to retain fastener

Country Status (5)

Country Link
JP (1) JPS54140296A (en)
DE (1) DE2852024C2 (en)
FR (1) FR2423306A1 (en)
GB (1) GB2019283B (en)
SE (1) SE7812181L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131114A (en) * 1982-11-25 1984-06-13 Chang Chung Hsing Screw and screwdriver

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3704086C2 (en) * 1987-02-10 1996-06-05 Luhr Hans Georg Prof Dr Dr Medical instrument with an elbow for screwing
DE3709824A1 (en) * 1987-03-25 1988-10-06 Heinl Thomas SURGICAL HAND TOOL
DE9202561U1 (en) * 1992-02-27 1992-04-16 Howmedica Gmbh, 2314 Schoenkirchen, De
DE19910676B4 (en) * 1999-03-11 2004-10-07 Nacam Deutschland Gmbh Screw system for loosening and fastening screws
CN105382751B (en) * 2015-12-04 2018-08-17 中国航空工业集团公司洛阳电光设备研究所 A kind of monodactyle formula spanner
CN112276843B (en) * 2019-09-28 2022-05-03 东莞劲佳精密部件有限公司 Improved screwdriver and improved screw

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1411242A (en) * 1920-12-11 1922-03-28 Guy W Faust Screw driver
US3095912A (en) * 1958-08-28 1963-07-02 Sullivan Melvin Screw driver for bending wire
US3695321A (en) * 1970-06-30 1972-10-03 Jacob W Garehime Jr Cavity head screw and driving tool therefor
SE362817B (en) * 1971-03-25 1973-12-27 T L Hill
JPS5043357A (en) * 1973-08-22 1975-04-19
GB1469920A (en) * 1976-06-24 1977-04-06 Matthews S Screwclip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131114A (en) * 1982-11-25 1984-06-13 Chang Chung Hsing Screw and screwdriver

Also Published As

Publication number Publication date
SE7812181L (en) 1979-10-20
FR2423306B3 (en) 1982-05-28
GB2019283B (en) 1982-07-28
DE2852024C2 (en) 1983-06-01
JPS54140296A (en) 1979-10-31
DE2852024A1 (en) 1979-10-31
FR2423306A1 (en) 1979-11-16

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19981102