WO1997002435A1 - Dispositif dissuasif contre le vol - Google Patents

Dispositif dissuasif contre le vol Download PDF

Info

Publication number
WO1997002435A1
WO1997002435A1 PCT/NZ1996/000072 NZ9600072W WO9702435A1 WO 1997002435 A1 WO1997002435 A1 WO 1997002435A1 NZ 9600072 W NZ9600072 W NZ 9600072W WO 9702435 A1 WO9702435 A1 WO 9702435A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
security fastening
engagement surface
fastening
security
Prior art date
Application number
PCT/NZ1996/000072
Other languages
English (en)
Inventor
Thomas Arthur Hamblyn
Original Assignee
Thomas Arthur Hamblyn
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 Thomas Arthur Hamblyn filed Critical Thomas Arthur Hamblyn
Priority to NZ312226A priority Critical patent/NZ312226A/xx
Priority to AU63715/96A priority patent/AU6371596A/en
Publication of WO1997002435A1 publication Critical patent/WO1997002435A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/14—Attaching disc body to hub ; Wheel adapters
    • B60B3/16—Attaching disc body to hub ; Wheel adapters by bolts or the like
    • B60B3/165—Attaching disc body to hub ; Wheel adapters by bolts or the like with locking devices for the fixing means, e.g. screw or nut covers
    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/485—Spanners; Wrenches for special purposes for theft-proof screws, bolts or nuts
    • 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
    • F16B23/0061—Specially shaped nuts or heads of bolts or screws for rotations by a tool with grooves, notches or splines on the external peripheral surface designed for tools engaging in radial direction

Definitions

  • This invention relates to a security fastening.
  • An object of the present invention is thus to provide a security fastening functionable as an engine disabling device which can be simply installed in a engine to render it inoperative but readily removable when operation of the engine is required.
  • a security fastening is required so as to prevent the unauthorised removal of an article.
  • wheels of motor vehicles are often stolen and to deter a thief it is known to provide a lockable wheel nut with each wheel of a vehicle.
  • lockable wheel nuts do not provide significant deterrent as the locks can either be picked or sufficiently damaged by an impact force to the locking region to enable the nut to be removed.
  • the present invention consists of a security fastening comprising a first part having a threaded portion, a second part rotatably mounted with said first part, said first part having a tool engagement surface, said tool engagement surface and/or at least a portion of the second part being of such a construction that only a specially configured tool is locatable therewith such as to enable the tool to engage with the tool engagement surface and be used to apply a torque to said first part to remove same from its threaded engagement in or on an item.
  • the security fastening is able to be screwed into a spark plug hole of an engine but only with the use of a specially configured tool.
  • the security fastening can be screwed onto a threaded stud of a wheel and only be removable by the use of a specially configured tool.
  • the tool engagement surface is of a shape which cannot be gripped by conventional tools.
  • Figure 1 is an elevation view of one form of the invention
  • Figure 2 is a further elevation view but taken at 90° to that of Figure 1
  • Figure 3 is a top plan view
  • Figure 4 is an elevation view of a second form of the invention
  • Figure 5 is a top plan view of the second form of the invention shown in Figure 4
  • Figure 6 is a top plan view of the first part of the second form of the invention
  • Figure 7 is a cross-sectional elevation view of the second form of the invention
  • Figure 8 is an elevation view of a tool for engagement with the second form of the invention
  • Figure 9 is an end elevation view of the tool of Figure 8.
  • Figure 10 is a cross-sectional elevation taken on line A-A of Figure 8.
  • the security fastening of the invention (which is shown in Figures 1 to 3 of the drawings as an engine disabling device) is formed of two basic parts.
  • a first part 10 has a threaded shank 11 which extends from a body or tool engagement portion 12.
  • the shank 11 has an external thread lla such that it can be screwed into a threaded opening such as the spark plug opening of an engine.
  • a second part 14 is formed with a projection or stud 15 which extends within bore 17 of the first part 10 so as to be rotatable therein. Due to the presence of fixing means 18 stud 15 is prevented from any substantial axial movement relative to the first part 10.
  • the fixing means 18 can, as shown in Figures 1 to 3 for example, be a headed fastening screwed into a threaded opening (not shown) in the end of stud 15. Alternatively the end of stud 15 can extend beyond the terminal or distal end 16 of shank 11 and be swaged or otherwise deformed into an enlarged head which prevents axial movement of the second part 14 relative to the first part 10.
  • a projection or stud 15' of first part 10 has towards its distal end a peripheral groove 25 while a corresponding groove 26 is formed in the wall of the bore 17 of second part 14.
  • the grooves 25 and 26 align.
  • a circlip 27 can be fitted into groove 24 and compressed so that the stud 15' with circlip 27 can be inserted into bore 17.
  • the circlip expands into groove 26. Consequently the circlip
  • the or part of the peripheral surface of tool engagement portion 12 of the first part 10 forms a tool engagement surface 13.
  • This is configured so that it is not able to be engaged by a conventional tool such as a fixed jaw or adjustable spanner. Thus, such a tool cannot be used to apply a torque to the first part about its longitudinal axis.
  • the tool engagement surface 13 includes a pair of flats 21 forming a generally V shaped surface and a generally curved surface 22.
  • the peripheral surface of the second part 14 is likewise configured so that at least at its greatest cross sectional area it has corresponding flats 23 and curved surface 24.
  • the peripheral surface of the tool engagement surface 13 of body 12 is substantially polygonal in shape when the first part 10 is viewed in plan and is preferably a polygon having an odd number of sides, eg five, seven or nine.
  • each side is of a curved shape.
  • the apex between each side i ⁇ curved.
  • peripheral surface 28 of the second part 14 is of the same configuration but has a pair of spaced apart protrusions 30.
  • the same spaced apart protrusions could also project from the tool engagement surface 13 of the first part 10 though this is not necessary.
  • the device i ⁇ thus inserted and removed from the screw threaded spark plug hole by a special tool configured to be able to fit over the first 10 and second 14 parts and apply a screwing torque via engagement with tool engagement portion 12 of the first part 10.
  • the tool 31 for use with the second form of the invention consists of a socket having an open ended bore or cavity 32 which in cross section is shaped to conform with the peripheral shape of the tool engagement surfaces 13 and 28 of the first and second parts 10 and 14 when the cross sectional profiles of the two parts are aligned.
  • the bore 32 additionally includes two open ended grooves 33 which are located so that they engage over the protrusions 30.
  • the second part 14 is rotated relative to the first part 10 so that the cross sectional profiles are aligned whereupon the socket 31 is slid over engagement surface 28 of the second part 14 such that the protrusions slide along the grooves 33.
  • the tool engaging surface 13 of the first part 10 is preferably of as little width as possible such that it nestles within the confines of that part of the engine from which the spark plug opening extends, eg within the cooling fins.
  • tool engagement surfaces 12 for the first part 10 will be designed together with correspondingly ⁇ haped tool ⁇ .
  • Such tools will generally be of a socket type having an internal cross section corresponding to that of the tool engagement portion 12 of first part 10.
  • a seller would thus be provided with a supply of identical devices and a tool of a configuration corresponding to the configuration of engagement portion thereof. As a result only that seller would be able to install and remove devices of that particular configuration.
  • the spatial array (and number) of protrusions 30 can be varied. Also for a greater number of different configured devices the size (ie the diameter of a circle which circumscribe ⁇ the apices of the sides of surface ⁇ 12 and 28) can be varied. This would result in, say, two devices having protru ⁇ ion ⁇ located in identical positions but the tool able to operate one device would not be suitable for the other device as it would either not be able to fit over surface 28 or would fit over but not be able to grippingly engage to cause a torque to be applied to surface 12.
  • the security fastening of the present invention can be readily adapted to function as, say, a lock nut for the wheel of a motor vehicle.
  • the shank 11 of the first part 10 will have an internal threaded bore with the thread being suited to engage on the threaded stud of a wheel hub.
  • the security fastening could only be installed and removed by a special tool configured to fit with the security fitting.
  • This tool would be in the form of a ⁇ uitably configured ⁇ ocket having mean ⁇ for engagement with a torque applying lever, eg a bar of circular cross section able to engage in a pair of diametrically opposed openings 34 in the end of the socket remote from that which has the configured opening in which the security fastening can engage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

Cette invention concerne un dispositif dissuasif contre le vol qui se monte grâce à un filetage sur un élément fileté ou dans un orifice taraudé. Ce dispositif comprend une première pièce (10) présentant une partie filetée (11), ainsi qu'une seconde pièce (14) montée rotative sur la première pièce. La première pièce comporte une surface de contact (13) avec un outil. Cette surface de contact (13) avec un outil et/ou au moins une partie de la seconde pièce (14) sont conçues de manière à ce que seul un outil spécial puisse s'y loger pour entrer en contact avec la surface de contact (13), et exercer ainsi un couple sur la première pièce (10) par l'intermédiaire de ladite surface de contact avec l'outil, ceci afin de retirer cette fixation de son engagement par filetage dans ou sur un article. Ce dispositif peut servir à remplacer une bougie d'allumage dans une machine portable équipée d'un moteur à essence, ou encore à remplacer l'écrou/le boulon servant à fixer une roue sur un véhicule automobile.
PCT/NZ1996/000072 1995-07-06 1996-07-05 Dispositif dissuasif contre le vol WO1997002435A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NZ312226A NZ312226A (en) 1995-07-06 1996-07-05 Theft deterrent device
AU63715/96A AU6371596A (en) 1995-07-06 1996-07-05 Theft deterrent device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ27251895 1995-07-06
NZ272518 1995-07-06

Publications (1)

Publication Number Publication Date
WO1997002435A1 true WO1997002435A1 (fr) 1997-01-23

Family

ID=19925334

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ1996/000072 WO1997002435A1 (fr) 1995-07-06 1996-07-05 Dispositif dissuasif contre le vol

Country Status (2)

Country Link
AU (1) AU6371596A (fr)
WO (1) WO1997002435A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2835479A1 (fr) * 2002-02-06 2003-08-08 Michel Czurylo Dispositif anti siphonnage de carburant pour reservoir a goulotte a vis femelle
WO2016103495A1 (fr) * 2014-12-26 2016-06-30 ユニファス株式会社 Kit de serrage
US10280966B2 (en) 2016-02-16 2019-05-07 Mcgard Llc High security fastener with internal shroud buckled retainer
WO2022043653A1 (fr) * 2020-08-26 2022-03-03 Bryan Michael Risi Pièce de fixation

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2793967A (en) * 1968-04-24 1968-07-25 Tomito Francis Improvements in andr elating to locks
AU5352169A (en) * 1968-04-16 1970-10-22 Ellis (Colchester) Limited Locking device
AU2129870A (en) * 1970-10-20 1972-04-27 Rubert, Owen & Co. Limited Improvements in nuts and bolts
AU2594977A (en) * 1976-06-08 1978-12-14 Telcefo Security Products Ab Preventing unauthorised use engine driven vehicles
GB2006371A (en) * 1977-10-04 1979-05-02 Hart H Fastening means
EP0253496A1 (fr) * 1986-06-13 1988-01-20 Alan Elgar Herbert Ellis Ecrou ou boulon de roue de sécurité
AU6221990A (en) * 1990-02-24 1991-08-29 Kioritz Corporation Working machine safety device
DE4325150A1 (de) * 1993-07-27 1995-02-02 Armin Plaumann Befestigungselement in Form einer Schraube oder Mutter
AU7826994A (en) * 1993-10-01 1995-05-01 Sten Astrom A device for preventing unauthorized use of an engine
JPH0828542A (ja) * 1994-07-15 1996-02-02 Tsugiyoshi Osawa 自動車用ホイールの盗難防止装置

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5352169A (en) * 1968-04-16 1970-10-22 Ellis (Colchester) Limited Locking device
AU2793967A (en) * 1968-04-24 1968-07-25 Tomito Francis Improvements in andr elating to locks
AU2129870A (en) * 1970-10-20 1972-04-27 Rubert, Owen & Co. Limited Improvements in nuts and bolts
AU2594977A (en) * 1976-06-08 1978-12-14 Telcefo Security Products Ab Preventing unauthorised use engine driven vehicles
GB2006371A (en) * 1977-10-04 1979-05-02 Hart H Fastening means
EP0253496A1 (fr) * 1986-06-13 1988-01-20 Alan Elgar Herbert Ellis Ecrou ou boulon de roue de sécurité
AU6221990A (en) * 1990-02-24 1991-08-29 Kioritz Corporation Working machine safety device
DE4325150A1 (de) * 1993-07-27 1995-02-02 Armin Plaumann Befestigungselement in Form einer Schraube oder Mutter
AU7826994A (en) * 1993-10-01 1995-05-01 Sten Astrom A device for preventing unauthorized use of an engine
JPH0828542A (ja) * 1994-07-15 1996-02-02 Tsugiyoshi Osawa 自動車用ホイールの盗難防止装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN; & JP,A,08 028 542 (OSAWA) 02 February 1996. *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2835479A1 (fr) * 2002-02-06 2003-08-08 Michel Czurylo Dispositif anti siphonnage de carburant pour reservoir a goulotte a vis femelle
WO2016103495A1 (fr) * 2014-12-26 2016-06-30 ユニファス株式会社 Kit de serrage
US10280966B2 (en) 2016-02-16 2019-05-07 Mcgard Llc High security fastener with internal shroud buckled retainer
US10280965B2 (en) 2016-02-16 2019-05-07 Mcgard Llc High security fastener with buckled shroud retainer
US10443645B2 (en) 2016-02-16 2019-10-15 Mcgard Llc High security fastener with external shroud retainer
US10816028B2 (en) 2016-02-16 2020-10-27 Mcgard Llc Method of forming high security fastener with internal shroud buckled retainer
US10989245B2 (en) 2016-02-16 2021-04-27 Mcgard Llc High security fastener with buckled shroud retainer
US11339821B2 (en) 2016-02-16 2022-05-24 Mcgard Llc High security fastener with external shroud retainer
WO2022043653A1 (fr) * 2020-08-26 2022-03-03 Bryan Michael Risi Pièce de fixation

Also Published As

Publication number Publication date
AU6371596A (en) 1997-02-05

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