GB1442185A - Positive lock self-retained fastener - Google Patents

Positive lock self-retained fastener

Info

Publication number
GB1442185A
GB1442185A GB4612073A GB4612073A GB1442185A GB 1442185 A GB1442185 A GB 1442185A GB 4612073 A GB4612073 A GB 4612073A GB 4612073 A GB4612073 A GB 4612073A GB 1442185 A GB1442185 A GB 1442185A
Authority
GB
United Kingdom
Prior art keywords
diameter
bolt
ring
less
shank
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
GB4612073A
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.)
SPS Technologies LLC
Original Assignee
Standard Pressed Steel Co
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 Standard Pressed Steel Co filed Critical Standard Pressed Steel Co
Publication of GB1442185A publication Critical patent/GB1442185A/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
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/002—Measures against loss of bolts, nuts or pins
    • 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
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details

Abstract

1442185 Safety bolt STANDARD PRESSED STEEL CO 3 Oct 1973 [10 Oct 1972] 46120/73 Heading F2H A safety bolt 10 has a spring ring 40 housed in an annular peripheral groove 30 near its leading end 24 to prevent withdrawal of the bolt from a workpiece without the use of a specific tool for compressing the ring radially inwardly, or loss of the bolt from the workpiece following slackening of a nut 44 due to vibration, &c. The threaded end portion 24 of the bolt has a diameter not greater than, and preferably less than the diameter B of the main shank portion 16. The ring 40 has a circular cross-section of diameter E and, in its free state, an outside diameter F greater than the shank 16 diameter B, and is radially compressible by a sleeve-like tool (not shown) to an outside diameter less than or equal to the shank diameter B. The bottom of the groove 30 comprises a cylindrical portion 32 of diameter C slightly less than (B-2E) and of length D slightly greater than E/2, and a frusto-conical portion 34 expanding from diameter C to a diameter G adjacent the end portion 24. The cone angle alpha is between 1 and 20 degrees, preferably 12 degrees. The depth of the shoulder 38 between the end 24 and the surface 34 is such that when a part of the ring 40 engages the shoulder and the surface 34, the distance of its geometric centre from the bolt axis 52 is less than H/2. The nut 44 is counterbored at 46 to clear the ring 40.
GB4612073A 1972-10-10 1973-10-03 Positive lock self-retained fastener Expired GB1442185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29633972A 1972-10-10 1972-10-10

Publications (1)

Publication Number Publication Date
GB1442185A true GB1442185A (en) 1976-07-07

Family

ID=23141622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4612073A Expired GB1442185A (en) 1972-10-10 1973-10-03 Positive lock self-retained fastener

Country Status (12)

Country Link
JP (1) JPS5337989B2 (en)
AU (1) AU474628B2 (en)
BE (1) BE805906A (en)
BR (1) BR7307833D0 (en)
CA (1) CA995111A (en)
DE (1) DE2349763A1 (en)
ES (1) ES419477A1 (en)
FR (1) FR2202552A5 (en)
GB (1) GB1442185A (en)
IN (1) IN142799B (en)
IT (1) IT994378B (en)
NL (1) NL7313805A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0174072A2 (en) * 1984-08-03 1986-03-12 Latchways Limited Releasable connector device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3341966A1 (en) * 1983-11-21 1985-05-30 Kraftwerk Union AG, 4330 Mülheim CORE REACTOR FUEL ELEMENT
US9120188B2 (en) * 2010-11-23 2015-09-01 Centre De Recherche Industrielle Du Quebec Apparatus and method for inserting a component through the surface of a workpiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0174072A2 (en) * 1984-08-03 1986-03-12 Latchways Limited Releasable connector device
EP0174072A3 (en) * 1984-08-03 1988-01-07 Latchways Limited Releasable connector device

Also Published As

Publication number Publication date
IN142799B (en) 1977-08-27
BR7307833D0 (en) 1974-06-27
JPS5337989B2 (en) 1978-10-12
AU6117573A (en) 1975-04-10
DE2349763A1 (en) 1974-04-18
ES419477A1 (en) 1976-04-01
BE805906A (en) 1974-02-01
NL7313805A (en) 1974-04-16
JPS4972549A (en) 1974-07-12
IT994378B (en) 1975-10-20
CA995111A (en) 1976-08-17
FR2202552A5 (en) 1974-05-03
AU474628B2 (en) 1976-07-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee