GB828194A - Captive screw fasteners - Google Patents

Captive screw fasteners

Info

Publication number
GB828194A
GB828194A GB2683255A GB2683255A GB828194A GB 828194 A GB828194 A GB 828194A GB 2683255 A GB2683255 A GB 2683255A GB 2683255 A GB2683255 A GB 2683255A GB 828194 A GB828194 A GB 828194A
Authority
GB
United Kingdom
Prior art keywords
screw
housing
recess
spring
circlip
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
GB2683255A
Inventor
Mark Ambrose Read
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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
Priority to GB3241852A priority Critical patent/GB761655A/en
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB2683255A priority patent/GB828194A/en
Publication of GB828194A publication Critical patent/GB828194A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F16B5/0208—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread using panel fasteners, i.e. permanent attachments allowing for quick assembly
    • 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
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/32—Locking by means of a pawl or pawl-like tongue

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

828,194. Screw fasteners; anchor-bolts. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 20, 1956 [Sept. 20, 1955], No. 26832/55. Addition to 761,655. Classes 44 and 89(1) The fastener of the parent Specification is modified in that upon the screw being fully retracted, it is arrested to avoid i imparting to the housing an excessive thrust in an axial direction away from the structural unit by which it is carried. In the arrangement shown, a circlip 23 or the like is located in the housing 10 and is formed with an upturned end 24 which co-acts with ratchet teeth 22 provided on the 'end face of the screw head to prevent rotation of the screw beyond that necessary for full extraction of the screw thread from a threaded bush 4 associated with a structural unit 2. A spring 18 which biases a threaded washer 6 into engagement with the other unit 1 is turned inwardly through one of two slots 17 on the housing to form a detent 21 which engages a milled edge of the screw head to retain the screw against rotation by vibration. A spring-loaded plate 26 normally closes a recess 25, at the leading end of the screw and by which the screw is rotated by means of a tool A. In a modification, Figs. 3 and 4 (not shown), the ratchet teeth and circlip are replaced by a coil spring which is located in an extension of the housing. The screw head may be provided with a tool receiving recess in addition to or instead of the recess 25.
GB2683255A 1952-12-22 1955-09-20 Captive screw fasteners Expired GB828194A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3241852A GB761655A (en) 1952-12-22 1952-12-22 Captive screw fasteners for panels, aircraft cowlings, covers, doors and the like
GB2683255A GB828194A (en) 1955-09-20 1955-09-20 Captive screw fasteners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2683255A GB828194A (en) 1955-09-20 1955-09-20 Captive screw fasteners

Publications (1)

Publication Number Publication Date
GB828194A true GB828194A (en) 1960-02-17

Family

ID=10249976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2683255A Expired GB828194A (en) 1952-12-22 1955-09-20 Captive screw fasteners

Country Status (1)

Country Link
GB (1) GB828194A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124190A (en) * 1964-03-10 cornell
US3421564A (en) * 1966-03-07 1969-01-14 Robert Neuschotz Self-aligning threaded fastener stud
US3490509A (en) * 1967-11-14 1970-01-20 Electric Regulator Corp Captive nut assembly
US3683988A (en) * 1970-03-03 1972-08-15 Textron Inc Positive lock structural fastener
US4812097A (en) * 1984-07-18 1989-03-14 Moulton Anthony D Spring action fastener
US4863326A (en) * 1986-12-11 1989-09-05 Southco, Inc. Captive fastener
FR2630508A1 (en) * 1988-04-22 1989-10-27 Thomson Csf Device for making captive a screw for fixing a mechanical component to a support
US4934884A (en) * 1987-08-18 1990-06-19 Barry Controls Ltd. Connector element
US6406210B1 (en) * 1998-11-12 2002-06-18 Trw Inc. Captivated jackscrew design
EP3441625A1 (en) * 2017-08-08 2019-02-13 B&R Industrial Automation GmbH Mounting element with pressure limitation
EP4177091A4 (en) * 2021-09-17 2023-11-08 Contemporary Amperex Technology Co., Limited Quick swap lock assembly and locking apparatus using said assembly

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124190A (en) * 1964-03-10 cornell
US3421564A (en) * 1966-03-07 1969-01-14 Robert Neuschotz Self-aligning threaded fastener stud
US3490509A (en) * 1967-11-14 1970-01-20 Electric Regulator Corp Captive nut assembly
US3683988A (en) * 1970-03-03 1972-08-15 Textron Inc Positive lock structural fastener
US4812097A (en) * 1984-07-18 1989-03-14 Moulton Anthony D Spring action fastener
US4863326A (en) * 1986-12-11 1989-09-05 Southco, Inc. Captive fastener
US4934884A (en) * 1987-08-18 1990-06-19 Barry Controls Ltd. Connector element
FR2630508A1 (en) * 1988-04-22 1989-10-27 Thomson Csf Device for making captive a screw for fixing a mechanical component to a support
US6406210B1 (en) * 1998-11-12 2002-06-18 Trw Inc. Captivated jackscrew design
EP3441625A1 (en) * 2017-08-08 2019-02-13 B&R Industrial Automation GmbH Mounting element with pressure limitation
US11499576B2 (en) 2017-08-08 2022-11-15 B&R Industrial Automation GmbH Mounting element having pressure limitation
EP4177091A4 (en) * 2021-09-17 2023-11-08 Contemporary Amperex Technology Co., Limited Quick swap lock assembly and locking apparatus using said assembly
US12085117B2 (en) 2021-09-17 2024-09-10 Contemporary Amperex Technology Co., Limited Quick-change lock assembly and locking device using same

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