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WO1998016751A1 - Dispositif de blocage pour element de vissage - Google Patents

Dispositif de blocage pour element de vissage Download PDF

Info

Publication number
WO1998016751A1
WO1998016751A1 PCT/DE1997/002283 DE9702283W WO9816751A1 WO 1998016751 A1 WO1998016751 A1 WO 1998016751A1 DE 9702283 W DE9702283 W DE 9702283W WO 9816751 A1 WO9816751 A1 WO 9816751A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw part
locking device
screw
key
disc
Prior art date
Application number
PCT/DE1997/002283
Other languages
German (de)
English (en)
Other versions
WO1998016751B1 (fr
Inventor
Peter Busse
Original Assignee
Peter Busse
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 Peter Busse filed Critical Peter Busse
Publication of WO1998016751A1 publication Critical patent/WO1998016751A1/fr
Publication of WO1998016751B1 publication Critical patent/WO1998016751B1/fr

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
    • 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

Definitions

  • the invention relates to a locking device for a screw part, which sits on (on) a threaded rod and is used to connect a second object to a first object, consisting of a key and a cap, the bottom of which is located between the screw part and one of the objects.
  • a first object consisting of a key and a cap, the bottom of which is located between the screw part and one of the objects.
  • the surfaces, in particular lateral surfaces of the screw parts of several first objects differ from one another, the part of the key which grips the screw parts is positively adapted to the screw part and the cap has such a small distance from it has the most radially outwardly projecting point of the screw part that the key can grip around the screw part.
  • the screw part is preferably a nut, and the cap can preferably be rotated freely in the tensioned state.
  • the first objects are parts of a bicycle (wheels, saddle and seat post) and the second object is the bicycle frame or, in connection with the saddle, the seat post.
  • the locking device mentioned serves as an anti-theft device: for example, certain screw parts of a particular bicycle, for example the screw parts on the wheel hubs, the screw part on the saddle and the screw part for clamping the seat post, have the same lateral surface shape.
  • the owner of this bike has a key with which he can turn all these screw parts. These are shapes on another bike other. In this way it is achieved that only the owner of a bicycle can turn the screw parts.
  • a device of this type has become known from DE 94 13 391 Ul. With this, it is theoretically possible to still loosen a screw part under certain, but practically hardly realizable, circumstances.
  • the invention has for its object to make unscrewing a screw part even more difficult or completely impossible.
  • This object is achieved in that there are locking means between the screw part and the contact surface facing it, which lock the screw part against loosening and can only be brought into its unlocking when it is placed on the screw part.
  • the anti-theft device according to the invention is also added to the anti-theft device of the known type. Together, they mean that even with the most sophisticated tools or with the most sophisticated handling, the screw parts cannot be unscrewed.
  • the locking means have a spring steel washer, which is non-rotatably connected to the one object in the tensioned state and has a plurality of latching lugs which, unloaded from the outside, can snap into indentations of the screw part and release the screw part by pressure from outside. If the screw part is gripped by the key assigned to it, then this pushes all locking lugs away from the screw part, and the screw part can be rotated. Should a thief use a screwdriver to push away a locking lug, the remaining locking lugs would lock the screw part.
  • a further development of the invention consists in that between an object and the spring steel washer there is a second washer, which is firmly connected to the object in the tensioned state and which has a central, non-circular shape base which engages through the cap and which, when tensioned, part rests, and that the first disc encompasses the base in a form-fitting and thus rotationally fixed manner.
  • a second washer which is firmly connected to the object in the tensioned state and which has a central, non-circular shape base which engages through the cap and which, when tensioned, part rests, and that the first disc encompasses the base in a form-fitting and thus rotationally fixed manner.
  • the second disk has a knurling opposite the object. In this way it is achieved that the second disc is absolutely firmly connected to the object in the tensioned state. Then it is useful if the base has a square shape. In particular, the base could be square.
  • the screw part tapers conically outwards, it cannot be gripped with pliers. This would slip when you grab it.
  • a plastic disc in particular a Teflon disc, be located between the spring steel disc and the bottom of the cap.
  • Teflon disc be located between the spring steel disc and the bottom of the cap.
  • the screw part can also be the head of a screw, in which case the threaded rod is the threaded shaft of the screw.
  • An application for this would be the attachment of parts of a rim brake to the struts of the driving frame. This attachment is done with screws. In the same way, these could be provided with the anti-theft device according to the invention.
  • FIG. 2 shows the embodiment of FIG. 1 in assembled form, 3 - 6 individual parts of the embodiment according to the invention
  • Fig. 7 shows a detail
  • Fig. 8 is a side view of a different type of screw part according to the invention.
  • the embodiment according to the invention consists of a screw part 1, a spring steel washer 2, a cap 3, a washer 4 with base 5 and a Teflon washer 6.
  • the screw part 1 is screwed onto a threaded rod 7. This sits e.g. on a wheel of a bicycle.
  • the bicycle fork is labeled 8.
  • the spring steel washer 2 has locking lugs 9 which can normally snap into recesses 10 of the screw part 1 (see FIG. 7) or, depending on the position of the parts, are snapped together.
  • Figure 3 shows a screw part 1 in perspective.
  • the indentations 10 are provided on its underside.
  • FIG. 4 shows the spring steel disk 2 with the detents 9.
  • FIG. 5 shows the pane 4 with the base 5.
  • FIG. 6 shows another embodiment of the spring steel disk 2 with the detents 9.
  • FIG. 7 shows a part of the screw part 1, specifically the area around the indentation 10. It can be seen that a locking lug 9 of the spring steel disk 2 is engaged in the indentation of the screw part 1.
  • a key (not shown) is placed over the screw part 1 and pressed so far in the direction of the bicycle fork 8 that the detents 9 release the indentations 10. Now the screw part 1 can be turned by turning the key. It would not be possible to turn the screw part 1 if, for example, only a locking lug 9 were pressed out of its indentation by means of a screwdriver, because then the screw part 1 would be held by the remaining locking lugs 9.
  • the circumference of the screw part 1 and thus the inner wall of the key is individually shaped, so that only the person who has the key assigned to it can unscrew the screw part 1.
  • FIG. 8 shows a side view of a further screw part 1 according to the invention. This consists of a cylindrical part 11, which is individually shaped, and a conical part 12.
  • the cap could also be blocked against twisting by one of the objects.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

L'invention concerne un dispositif de verrouillage pour élément de vissage (1) se trouvant sur une tige filetée (7) et servant à assembler un second objet (8) avec un premier objet. Ce dispositif comprend une clef et un capuchon (3) dont le fond se trouve entre l'élément de vissage (1) et un des objets (8), dont la paroi cylindrique entoure l'élément de vissage (1) et se termine dans la zone de la face d'about de l'élément de vissage (1). Les surfaces, notamment les surfaces extérieures des éléments de vissage (1) de plusieurs premiers objets diffèrent les unes des autres et la partie de la clef qui tient les éléments de vissage (1) est adaptée par liaison de forme à l'élément de vissage (1). Le capuchon (3) est à distance si réduite de l'endroit où l'élément de vissage fait le plus saillie vers l'extérieur dans le sens radial, que la clef peut entourer l'élément de vissage (1). L'invention se caractérise en ce qu'il est prévu entre l'élément de vissage (1) et la surface d'appui d'un des objets (8), qui lui fait face, des éléments d'arrêt (4, 5, 2, 9) qui bloquent l'élément de vissage (1) pour lui éviter de tourner et de se desserrer, et ne peuvent être débloqués que lorsque la clef est placée sur l'élément de vissage (1). Ce dispositif permet d'obtenir un système antivol particulièrement fiable.
PCT/DE1997/002283 1996-10-11 1997-09-29 Dispositif de blocage pour element de vissage WO1998016751A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19643583.8 1996-10-11
DE1996143583 DE19643583A1 (de) 1996-10-11 1996-10-11 Verriegelungsvorrichtung für eine Mutter

Publications (2)

Publication Number Publication Date
WO1998016751A1 true WO1998016751A1 (fr) 1998-04-23
WO1998016751B1 WO1998016751B1 (fr) 1998-06-18

Family

ID=7809455

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/002283 WO1998016751A1 (fr) 1996-10-11 1997-09-29 Dispositif de blocage pour element de vissage

Country Status (2)

Country Link
DE (1) DE19643583A1 (fr)
WO (1) WO1998016751A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103423282A (zh) * 2013-07-09 2013-12-04 中煤张家口煤矿机械有限责任公司 一种外六角头螺栓或螺母防松装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR451287A (fr) * 1912-12-03 1913-04-15 Elton Carrington Church Fixe-écrou
GB245121A (en) * 1924-12-20 1926-06-03 Abel Jean Bertrand Device with safety washer for making bolts and nuts unslackenable
US1646805A (en) * 1927-02-05 1927-10-25 Bell Alvah Lock nut
US4055208A (en) 1976-09-20 1977-10-25 Illinois Tool Works Inc. Locking fastener device
DE3935753C2 (fr) 1988-11-12 1993-03-04 Volkswagen Ag, 3180 Wolfsburg, De
DE9413391U1 (de) 1994-06-29 1995-01-05 Busse, Peter, 10999 Berlin Mutter mit Schlüssel für ein Fahrrad

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR451287A (fr) * 1912-12-03 1913-04-15 Elton Carrington Church Fixe-écrou
GB245121A (en) * 1924-12-20 1926-06-03 Abel Jean Bertrand Device with safety washer for making bolts and nuts unslackenable
US1646805A (en) * 1927-02-05 1927-10-25 Bell Alvah Lock nut
US4055208A (en) 1976-09-20 1977-10-25 Illinois Tool Works Inc. Locking fastener device
DE3935753C2 (fr) 1988-11-12 1993-03-04 Volkswagen Ag, 3180 Wolfsburg, De
DE9413391U1 (de) 1994-06-29 1995-01-05 Busse, Peter, 10999 Berlin Mutter mit Schlüssel für ein Fahrrad

Also Published As

Publication number Publication date
DE19643583A1 (de) 1998-04-23

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