GB828194A - Captive screw fasteners - Google Patents
Captive screw fastenersInfo
- 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
Links
- 238000000605 extraction Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
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.
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)
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 |
-
1955
- 1955-09-20 GB GB2683255A patent/GB828194A/en not_active Expired
Cited By (13)
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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