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WO1987000593A1 - Anti-theft bolt - Google Patents

Anti-theft bolt Download PDF

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Publication number
WO1987000593A1
WO1987000593A1 PCT/CH1986/000104 CH8600104W WO8700593A1 WO 1987000593 A1 WO1987000593 A1 WO 1987000593A1 CH 8600104 W CH8600104 W CH 8600104W WO 8700593 A1 WO8700593 A1 WO 8700593A1
Authority
WO
WIPO (PCT)
Prior art keywords
head
cylindrical
sleeve
theft bolt
bolt according
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.)
Ceased
Application number
PCT/CH1986/000104
Other languages
French (fr)
Inventor
Roger Maurer
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 WO1987000593A1 publication Critical patent/WO1987000593A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0069—Specially shaped nuts or heads of bolts or screws for rotations by a tool with holes to be engaged with corresponding pins on the tool or protruding pins to be engaged with corresponding holes on the tool
    • 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

Definitions

  • the present invention relates to an anti-theft bolt intended particularly, but not exclusively, for fixing vehicle wheels.
  • Means are already known for preventing theft of automobile wheels, these means preventing the unscrewing of the wheel fixing bolts by means of a conventional key.
  • the known systems have in common the use of an extension fixed to the hexagon head of the bolt.
  • the end of the extension is personalized, for example by holes arranged in a particular and unique manner for each holder, the latter having a corresponding nut provided with pins which can engage in the holes of the extension.
  • This extension forms a significant projection on the wheel and creates a ballourd.
  • the cost price of such a device is also relatively very high.
  • the present invention aims to achieve an anti-theft bolt without extension, that is to say the same length as conventional bolts and capable of being manufactured at low cost.
  • the anti-theft bolt according to the invention is characterized in that it comprises a non-standardized head on and around which is rotatably mounted and integral with the rotation of the head, a socket of internal shape combined with the irregular section of the head and of normalized regular polygonal external section.
  • the sleeve nut comes to be fixed directly on the bolt head, no bolt extension required. Once the bolt is screwed in, the nut sleeve is removed from the bolt and kept by the holder of the object fixed by the bolt.
  • the bolt can have a length identical to that of a conventional bolt.
  • FIG. 1 is a side view of it, the sleeve being seen in section along I-I of FIG. 2.
  • Figure 2 is an end view of the same bolt.
  • Figure 3 is a view similar to Figure 1, showing an alternative embodiment.
  • the bolt shown is intended to fix a motor vehicle or trailer wheel. Like conventional bolts of this type, it has a partially threaded cylindrical part 1 followed by a frustoconical part 2. In place of the usual hexagon head, this nut is provided with a cylindrical head 3 provided with three semi-grooves -cylindrical angularly distributed irregularly.
  • a socket h On and around this grooved cylindrical head 3 and mounted freely, that is to say with a slight clearance, a socket h whose inner wall is cylindrical and provided with three cylindrical pins 5, 6 and 7 housed and welded in semi-cylindrical grooves formed in the inner wall of the sleeve 4 and located opposite the grooves of the head 3, so that the pins 5, 6 and 7 are engaged in the grooves of the head 3, so that the head 3 and the socket 4 are closely connected in rotation.
  • the diameters of all splines and pins are, in the example shown, identical, but they could also vary from one pin to another.
  • the exterior of the socket 4 has the form of a standardized hexagon nut and therefore maneuverable by means of a conventional key.
  • the user threads the sleeve-nut 4 on the head 3 of the bolt, which is thus secured in rotation with the sleeve-nut 4.
  • the user can then screw the bolt by means of a wrench usual.
  • the user removes the nut sleeve 4, so that the remaining bolt cannot be unscrewed using a standard wrench. If the bolt is properly tightened, it is also almost impossible to unscrew it using pliers or a universal wrench.
  • a bolt with a smooth cylindrical head 3 is machined. Then temporarily fixed on the head 3 a nut sleeve provided with a wall smooth cylindrical interior. Three cylindrical holes are then drilled parallel to the axis of the bolt on the joint circumference of the head and the nut-nut. Three grooves are thus formed on the head 3 and three corresponding grooves in the nut sleeve 4. Then the nut sleeve is removed and a cylindrical pin is welded in each groove of the nut sleeve 4. Thus, by drilling three holes of randomly we obtain a nut-nut 4 perfectly adapted to the head 3 of the bolt.
  • the bolt is of course already achievable with only two pins.
  • Figure 3 shows an alternative embodiment in which the sleeve 4 is replaced by a sleeve 6 provided with a bottom 6a in which the pins 5, 6 and 7 are driven, instead of being welded in the grooves of the sleeve .
  • the manufacturing is done in the same way as for FIGS. 1 and 2, the grooves of the head 3 having however to be taken up to allow the free axial engagement of the pins in these grooves.
  • the pins 5, 6 and 7 could be replaced by bosses, cylindrical or not, engaging in grooves of corresponding shape of the head 3 of the bolt.
  • the object of the invention is achieved if the shape of the section of the bolt head and the shape of the inner section of the socket are irregular and identical.
  • the shape of these sections can be, for example, a closed curved line, an irregular polygon, an irregular toothing, a combination of these different shapes, etc.
  • the cylindrical head of the bolt and the socket could be provided with a diameter and a custom pitch, that is to say different for each holder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Plates (AREA)

Abstract

The bolt (1) is provided with a head (3) having an irregular cross-section on which is removably mounted with play a sleeve (4) having an irregular internal cross-section conjugated with the irregular cross-section of the head and having an external standardized regular polygonal cross-section. The head (3) is comprised for example of a fluted cylinder and the sleeve-nut (4) is internally provided with pins (5, 6, 7) welded in splines or driven into the bottom of the sleeve.

Description

Boulon antivol.Anti-theft bolt.

La présente invention a pour objet un boulon antivol destiné particulièrement, mais non exclusivement à la fixation de roues de véhicule.The present invention relates to an anti-theft bolt intended particularly, but not exclusively, for fixing vehicle wheels.

On connaît déjà des moyens pour prévenir le vol de roues d'automobile, ces moyens empêchant le dévissage des boulons de fixation de la roue au moyen d'une clef conventionnelle. Les systèmes connus ont en commun l'utilisation d'une rallonge fixée sur la tête six pans du boulon. L'extrémité de la rallonge est personnalisée, par exemple par des trous disposés d'une façon particulière et unique pour chaque détenteur, celui-ci possédant un écrou correspondant muni de goupilles pouvant s'engager dans les trous de la rallonge. Cette rallonge forme une saillie importante sur la roue et crée un ballourd. Le prix de revient d'un tel dispositif est en outre relativement très élevé.Means are already known for preventing theft of automobile wheels, these means preventing the unscrewing of the wheel fixing bolts by means of a conventional key. The known systems have in common the use of an extension fixed to the hexagon head of the bolt. The end of the extension is personalized, for example by holes arranged in a particular and unique manner for each holder, the latter having a corresponding nut provided with pins which can engage in the holes of the extension. This extension forms a significant projection on the wheel and creates a ballourd. The cost price of such a device is also relatively very high.

La présente invention a pour but de réaliser un boulon antivol sans rallonge, c'est-à-dire de même longueur que les boulons conventionnels et susceptible d'être fabriqué à bas prix.The present invention aims to achieve an anti-theft bolt without extension, that is to say the same length as conventional bolts and capable of being manufactured at low cost.

Le boulon antivol selon l'invention est caractérisé par le fait qu'il comprend une tête non normalisée sur et autour de laquelle est montée amoviblement et solidaire la rotation de la tête, une douille de forme intérieure conjuguée à la section irrégulière de la tète et de section extérieure polygonale régulière normalisée.The anti-theft bolt according to the invention is characterized in that it comprises a non-standardized head on and around which is rotatably mounted and integral with the rotation of the head, a socket of internal shape combined with the irregular section of the head and of normalized regular polygonal external section.

La douille-écrou venant se fixer directement sur la tête du boulon, aucune rallonge du boulon n'est nécessaire. Une fois le boulon vissé, la douille-écrou est enlevée du boulon et conservée par le détenteur de l'objet fixé par le boulon. Le boulon peut présenter une longueur identique à celle d'un boulon conventionnel.The sleeve nut comes to be fixed directly on the bolt head, no bolt extension required. Once the bolt is screwed in, the nut sleeve is removed from the bolt and kept by the holder of the object fixed by the bolt. The bolt can have a length identical to that of a conventional bolt.

Le dessin annexé représente, à titre d'exemple, une forme d'exécution du boulon selon l' invention.The accompanying drawing shows, by way of example, an embodiment of the bolt according to the invention.

La figure 1 en est une vue de côté, la douille étant vue en coupe selon I-I de la figure 2.FIG. 1 is a side view of it, the sleeve being seen in section along I-I of FIG. 2.

La figure 2 est une vue en bout du même boulon.Figure 2 is an end view of the same bolt.

La figure 3 est une vue analogue à la figure 1 , représentant une variante d'exécution.Figure 3 is a view similar to Figure 1, showing an alternative embodiment.

Le boulon représenté est destiné à fixer une roue de véhicule automobile ou de remorque. Comme les boulons conventionnels de ce type, il présente une partie cylindrique partiellement filetée 1 suivie d'une partie tronconique 2. En lieu et place de la tête six pans usuelle, cet écrou est muni d'une tète cylindrique 3 munie de trois cannelures semi-cylindriques réparties angulairement de façon irrégulière. Sur et autour de cette tète cylindrique cannelée 3 et montée librement, c'est-à-dire avec un léger jeu, une douille h dont la paroi intérieure est cylindrique et munie de trois goupilles cylindriques 5, 6 et 7 logées et soudées dans des cannelures semi-cylindriques ménagées dans la paroi intérieure de la douille 4 et situées en face des cannelures de la tête 3, de telle sorte que les goupilles 5, 6 et 7 sont engagées dans les cannelures de la tête 3 , de telle sorte que la tête 3 et la douille 4 sont étroitement solidaires en rotation. Les diamètres de toutes les cannelures et des goupilles sont, dans l'exemple représenté, identiques, mais ils pourraient également varier d'une goupille à l'autre.The bolt shown is intended to fix a motor vehicle or trailer wheel. Like conventional bolts of this type, it has a partially threaded cylindrical part 1 followed by a frustoconical part 2. In place of the usual hexagon head, this nut is provided with a cylindrical head 3 provided with three semi-grooves -cylindrical angularly distributed irregularly. On and around this grooved cylindrical head 3 and mounted freely, that is to say with a slight clearance, a socket h whose inner wall is cylindrical and provided with three cylindrical pins 5, 6 and 7 housed and welded in semi-cylindrical grooves formed in the inner wall of the sleeve 4 and located opposite the grooves of the head 3, so that the pins 5, 6 and 7 are engaged in the grooves of the head 3, so that the head 3 and the socket 4 are closely connected in rotation. The diameters of all splines and pins are, in the example shown, identical, but they could also vary from one pin to another.

L'extérieure de la douille 4 présente la forme d'un écrou six pans normalisé et par conséquent manoeuvrable au moyen d'une clef usuelle.The exterior of the socket 4 has the form of a standardized hexagon nut and therefore maneuverable by means of a conventional key.

La répartition des cannelures et des goupilles 5, 6 et 7 sur la circonférence diffère d'un boulon à l'autre, respectivement d'un jeu de boulons à l'autre, étant donné qu'elle pourra être la même pour tous les boulons appartenant au même détenteur.The distribution of grooves and pins 5, 6 and 7 on the circumference differs from one bolt to another, respectively from one set of bolts to the other, since it can be the same for all bolts belonging to the same holder.

Pour visser le boulon antivol, l'utilisateur enfile la douille-écrσu 4 sur la tête 3 du boulon, qui se trouve ainsi solidarisée en rotation avec la douille-écrou 4. L'utilisateur peut alors visser le boulon au moyen d'une clef usuelle. Une fois le boulon vissé, l'utilisateur retire la douille-écrou 4, de sorte que le boulon subsistant ne peut pas être dévissé au moyen d'une clef usuelle. Si le boulon est convenablement serré, il est en outre quasiment impossible de le dévisser au moyen d'une pince ou d'une clef universelle.To screw the anti-theft bolt, the user threads the sleeve-nut 4 on the head 3 of the bolt, which is thus secured in rotation with the sleeve-nut 4. The user can then screw the bolt by means of a wrench usual. Once the bolt has been screwed in, the user removes the nut sleeve 4, so that the remaining bolt cannot be unscrewed using a standard wrench. If the bolt is properly tightened, it is also almost impossible to unscrew it using pliers or a universal wrench.

La fabrication d'un tel boulon antivol personnalisé peut se faire de manière très simple.The manufacture of such a personalized anti-theft bolt can be done very simply.

On usine tout d'abord un boulon muni d'une tète 3 cylindrique lisse. On fixe ensuite provisoirement sur la tête 3 une douille-écrou munie d'une paroi intérieure cylindrique lisse. On perce ensuite trois trous cylindriques parallèles à l'axe du boulon sur la circonférence de joint de la tète et de la douille- écrou. On forme ainsi trois cannelures sur la tète 3 et trois cannelures correspondantes dans la douille-écrou 4. On retire ensuite la douille-écrou et on soude une goupille cylindrique dans chaque cannelure de la douille-écrou 4. Ainsi, en perçant trois trous de façon aléatoire on obtient une douille-écrou 4 parfaitement adaptée à la tète 3 du boulon.First of all, a bolt with a smooth cylindrical head 3 is machined. Then temporarily fixed on the head 3 a nut sleeve provided with a wall smooth cylindrical interior. Three cylindrical holes are then drilled parallel to the axis of the bolt on the joint circumference of the head and the nut-nut. Three grooves are thus formed on the head 3 and three corresponding grooves in the nut sleeve 4. Then the nut sleeve is removed and a cylindrical pin is welded in each groove of the nut sleeve 4. Thus, by drilling three holes of randomly we obtain a nut-nut 4 perfectly adapted to the head 3 of the bolt.

En faisant par exemple varier de 1 * la position angulaire des trous percés, c'est-à-dire des goupilles 6 et 7 relativement à la goupille 5, on obtient déjà plus de 12,0 000 combinaisons. Ce nombre peut être sans autre augmenté, sans exiger une précision plus grande, en augmentant le nombre de goupilles.By for example varying by 1 * the angular position of the drilled holes, that is to say pins 6 and 7 relative to pin 5, we already obtain more than 12,000 combinations. This number can be increased without further, without requiring greater precision, by increasing the number of pins.

Le boulon est bien entendu déjà réalisable avec deux goupilles seulement.The bolt is of course already achievable with only two pins.

La figure 3 représente une variante d'exécution dans laquelle la douille 4 est remplacée par une douille 6 munie d'un fond 6a dans lequel les goupilles 5, 6 et 7 sont chassées, au lieu d'être soudées dans les cannelures de la douille. La fabrication se fait de la même manière que pour les figures 1 et 2, les cannelures de la tête 3 devant toutefois être reprises pour permetre le libre engagement axial des goupilles dans ces cannelures.Figure 3 shows an alternative embodiment in which the sleeve 4 is replaced by a sleeve 6 provided with a bottom 6a in which the pins 5, 6 and 7 are driven, instead of being welded in the grooves of the sleeve . The manufacturing is done in the same way as for FIGS. 1 and 2, the grooves of the head 3 having however to be taken up to allow the free axial engagement of the pins in these grooves.

Les goupilles 5, 6 et 7 pourraient être remplacées par des bossages, cylindriques ou non s 'engageant dans des cannelures de forme correspondantes de la tête 3 du boulon .The pins 5, 6 and 7 could be replaced by bosses, cylindrical or not, engaging in grooves of corresponding shape of the head 3 of the bolt.

D'une manière générale le but visé par l'invention est atteint si la forme de la section de la tète du boulon et la forme de la section intérieure de la douille sont irrégulières et identiques. La forme de ces sections peut être, par exemple, une ligne courbe fermée, un polygone irrégulié, une denture irrégulière, une combinaison de ces différentes formes, etc. La tête cylindrique du boulon et la douille pourraient être munis de diamètre et de pas personnalisé, c'est-à-dire différent pour chaque détenteur. In general, the object of the invention is achieved if the shape of the section of the bolt head and the shape of the inner section of the socket are irregular and identical. The shape of these sections can be, for example, a closed curved line, an irregular polygon, an irregular toothing, a combination of these different shapes, etc. The cylindrical head of the bolt and the socket could be provided with a diameter and a custom pitch, that is to say different for each holder.

Claims

REVENDICATIONS. CLAIMS. 1. Boulon antivol, caractérisé par le fait qu'il comprend une tête (3) non normalisée sur et autour de laquelle est montée amoviblement et solidaire en rotation de la tête une douille (4) de forme intérieure conjuguée à celle de la tète et de forme extérieure polygonale régulière normalisée.1. Anti-theft bolt, characterized in that it comprises a head (3) not standardized on and around which is mounted removably and integral in rotation with the head with a socket (4) of internal shape combined with that of the head and of normalized regular polygonal external shape. 2. Boulon antivol selon la revendication 1, caractérisé par le fait que la tête (3) et la douille (4) sont de section irrégulière.2. Anti-theft bolt according to claim 1, characterized in that the head (3) and the socket (4) are of irregular section. 3. Boulon antivol selon la revendication 2, caractérisé par le fait que la tête (3) est constituée par un cylindre muni d'au moins deux cannelures et que la paroi intérieure de la douille (4) est également cylindrique et munie de bossages (5. 6, 7) en nombre égal au nombre de cannelures et disposés de telle sorte qu'ils s'engagent dans lesdites cannelures.3. Anti-theft bolt according to claim 2, characterized in that the head (3) is constituted by a cylinder provided with at least two grooves and that the inner wall of the sleeve (4) is also cylindrical and provided with bosses ( 5. 6, 7) in number equal to the number of grooves and arranged so that they engage in said grooves. 4. Boulon antivol selon la revendication 3, caractérisé par le fait que les bossages sont constitués par des goupilles cylindriques (5, 6, 7) solidaire de la douil¬ le (4) et logées dans des cannelures semi-cylindrique de la douille.4. Anti-theft bolt according to claim 3, characterized in that the bosses are constituted by cylindrical pins (5, 6, 7) secured to the douil¬ the (4) and housed in semi-cylindrical grooves of the sleeve. 5. Boulon antivol selon la revendication 2, caractérisé par le fait que les goupilles (5, 6, 7) sont soudées dans les cannelures semi-cylindriques de la paroi intérieure de la douille (4)5. Anti-theft bolt according to claim 2, characterized in that the pins (5, 6, 7) are welded in the semi-cylindrical grooves of the inner wall of the sleeve (4) 6. Boulon antivol selon la revendication 3, caractérisé par le fait que la douille (6) est munie d'un font (6a) et que les goupilles cylindriques (5, 6, 7) sont chas¬ sées dans le fond (6a) de l'a douille.6. Anti-theft bolt according to claim 3, characterized in that the sleeve (6) is provided with a font (6a) and that the cylindrical pins (5, 6, 7) are chas¬ ed in the bottom (6a) of the bushing. 7. Boulon antivol selon la revendication 2, caractérisé par le fait que les sections irrégulière on la forme d'un polygone irrégulier.7. Anti-theft bolt according to claim 2, characterized in that the irregular sections have the shape of an irregular polygon. 8. θoulon antivol selon la revendication 2, caractérisé par le fait que les sections irrégulières ont la forme d'une ligne courbe fermée.8. anti-theft bolt according to claim 2, characterized in that the irregular sections have the shape of a closed curved line. 9. Boulon antivol selon la revendication 2, caractérisé par le fait que la tète et la paroi intérieure de la douille sont constituées par des cylindres munis d'une denture irrégulière.9. Anti-theft bolt according to claim 2, characterized in that the head and the inner wall of the sleeve are constituted by cylinders provided with irregular toothing. 10. Boulon antivol selon la revendication 2, caractérisé par le fait que la tète est cylindrique et filetée et que la douille présente un taraudage correspondant pour venir se visser sur la tète.10. Anti-theft bolt according to claim 2, characterized in that the head is cylindrical and threaded and that the sleeve has a corresponding thread to come to be screwed on the head. 11. Procédé de fabrication d'un boulon antivol selon la revendication 3, caractérisé en ce qu'on usine un boulon à tète cylindrique lisse, qu'on fixe provisoirement sur cette tête une douille dont la paroi intérieure est cylindrique de même diamètre que la tête cylindrique et de forme extérieure polygonale régulière normalisée, qu'on perce au moins deux trous parallèles à l'axe sur la circonférence de joint de la tête et de la douille, qu'on retire la douille et qu'on fixe une goupille dans chaque cannelure intérieure de la douille obtenue par le perçage.11. A method of manufacturing an anti-theft bolt according to claim 3, characterized in that a bolt with a smooth cylindrical head is machined, that a socket is temporarily fixed on this head, the inner wall of which is cylindrical with the same diameter as the cylindrical head and of regular regular polygonal external shape, that at least two holes are drilled parallel to the axis on the joint circumference of the head and the socket, that the socket is removed and that a pin is fixed in each inner groove of the sleeve obtained by drilling. 12. Procédé selon la revendication 11, caractérisé en ce qu'on utilise une douille munie d'un fond (6a) et qu'on fixe les goupilles par chassage dans ce fond. 12. Method according to claim 11, characterized in what is used is a socket provided with a bottom (6a) and that the pins are fixed by driving into this bottom.
PCT/CH1986/000104 1985-07-25 1986-07-25 Anti-theft bolt Ceased WO1987000593A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH322885A CH664606A5 (en) 1985-07-25 1985-07-25 Theft device for fixing.
CH3228/85-8 1985-07-25

Publications (1)

Publication Number Publication Date
WO1987000593A1 true WO1987000593A1 (en) 1987-01-29

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ID=4251412

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1986/000104 Ceased WO1987000593A1 (en) 1985-07-25 1986-07-25 Anti-theft bolt

Country Status (3)

Country Link
EP (1) EP0231218A1 (en)
CH (1) CH664606A5 (en)
WO (1) WO1987000593A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5443965A (en) * 1990-04-06 1995-08-22 Genelabs Incorporated Hepatitis C virus epitopes
CN111075820A (en) * 2020-01-02 2020-04-28 北京雨嘉科技有限公司 anti-theft bolt

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2216658C2 (en) * 2001-06-04 2003-11-20 Открытое акционерное общество "Белебеевский завод "Автонормаль" Wheel bolt
US10836304B2 (en) 2015-11-20 2020-11-17 Ian Taberner Security mounting arrangement
US9651193B1 (en) 2015-11-20 2017-05-16 Ian Taberner Security mounting arrangement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027572A (en) * 1974-05-13 1977-06-07 Burge William G Theft-prevention screw fastenings
US4170918A (en) * 1977-10-28 1979-10-16 Burge William G Theft-prevention screw fastening
FR2493772A1 (en) * 1980-11-13 1982-05-14 Benzoni C Snc A Car anti-theft wheel-nut - has cylindrical head containing notches over which co-operating hexagonal key locates

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027572A (en) * 1974-05-13 1977-06-07 Burge William G Theft-prevention screw fastenings
US4170918A (en) * 1977-10-28 1979-10-16 Burge William G Theft-prevention screw fastening
FR2493772A1 (en) * 1980-11-13 1982-05-14 Benzoni C Snc A Car anti-theft wheel-nut - has cylindrical head containing notches over which co-operating hexagonal key locates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5443965A (en) * 1990-04-06 1995-08-22 Genelabs Incorporated Hepatitis C virus epitopes
CN111075820A (en) * 2020-01-02 2020-04-28 北京雨嘉科技有限公司 anti-theft bolt

Also Published As

Publication number Publication date
EP0231218A1 (en) 1987-08-12
CH664606A5 (en) 1988-03-15

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