FR2563797A1 - Anti-theft device for all motorbikes and motor scooters - Google Patents

Abstract

Anti-theft device for motorbike and motor scooter enabling the front wheel to be immobilized, by interposition of a piece of apparatus between the spokes, characterised in that the piece of apparatus is integral with the two tubes of the front fork of the vehicle.

Description

 The present invention relates to an anti-theft device oj.r t & teS Oto and ve-lossoteur.

 This anti-theft device completely immobilizes the I-oto or the moped by placing it between the wheel and the two tubes of the front fork, and therefore it blocks the rotation of the wheel.

 Once locked on the motorcycle or moped, it is impossible to move or remove this Lere anti-theft device by removing the front wheel.

it is very robust and from the way it is placed, it is impossible to destroy it.

There are several kinds of anti-theft devices for this type of vehicle, but they are not entirely effective because they can be removed using jacks, shears or pliers, but some are very bulky, so storage problems, and very often the bikers are obliged to put them around the neck and can be dangerous during an accident (for example chains or cables.)
The present invention in addition to other locks has the distinction of being of small standard, divided into two small parts once disassembled, it can slip into the biker's pocket while being very robust.

 The anti-theft device according to the invention mainly comprises two parts.

One with a ring that can be opened to insert a tube from the fork of a vehicle and closing when the assembly is put in place. The other part has a fork in the hollow of which the second tube of the vehicle fork is positioned.

 When the device is put in place, its two parts become integral and it is tied between the two tubes of the vehicle fork and passes through the spokes.

 By way of nonlimiting example, an exemplary embodiment according to the invention will be described below.

 This lock consists of three parts A, B, C shown in Figures 1, 2, 3.

 Figure 1 shows the detailed description of all the parts numbered from 1 to 19.

 Figure 2 shows the front view of the mounted lock.

 Figure 3 shows the top view of the mounted lock.

1) Room A is made up of 6 rooms
- The part 1 is of cylindrical fore on which is welded at one end a fork 2 which is applied to the tube of the front fork of the motorcycle.

 In the center of the piece 1, on each side are welded two squares of flat iron 3 forging chappe.

 In the center of the flat ier 3 is drilled a hole 4 which houses the lock.

 At the other end of the part 1 and on its supericure part is welded a small rod 5 forming a guide with a small lug 6.

2) The part B is made up of 2 parts: - The part 7 is of cylindrical shape in the center of which a hole 9 has been drilled for the passage of the screw 8 for the asserilage with the part C. At the end of the a hole at about 15 mm is machined a countersink 9 to accommodate the hollow head of the screw 8.8 on the top of the part 7 is drilled a hole 10 where the lug 6 is housed
Below the part 7 on the counterbore side 9 is welded a flat iron 11 of 10 × 20 mm over a length of approximately 50 mm forming a tenon and projecting by approximately c0 mm.

 This tenon 11 fits onto the cap 3 of the part A during the mounting of the anti-theft device on the motorcycle.

 At the end of the part ll is drilled a hole 12 which aligns with the hole 4 of the clevis 3 in which the lock is housed.

3) Piece C is made up of 4 pieces - Piece 13 is made up of a half bushing, one mortise of which has been machined at each end 14 in which two semicircles 15 are housed
On each side on the flat part of the half bearing 13 on the mortise side 14, a hole 16 is drilled into which a pin 17 is fitted which serves to articulate the two half-circles 15.

 On each side on the flat part of the half bearing 13 c8té mortise 14 is pierced a hole 16 in which is fitted a pin 17 which serves to articulate the two half-hoops 15.

 The two deibi circles 15 are movable around an axis 17, when they are completely open, in the center of the half-pad 13 they form two bevels 18 bevelled, and when they are applied against the tube of the fork of the motorcycle , they close and form a collar around the tube of the motorcycle fork.

In the center of the half bearing 13 is welded a threaded boss 19 where the screw 8 is screwed which allows the fixing of the parts B and C
To lock this anti-theft device, we assemble the part A with the part
BC.

For this we introduce the lug 6 in the hole 10 and autonatiuuer-ent the tenon 11 is housed in the yoke 3, the holes 12 and 4 being in alignment receive the pin lock.

This anti-theft device can be adapted to all brands of motorcycle or moped
depending on the diameter of the hole and the fork gap.

Claims (7)

 1) Arti-flight device for motorbike and moped allowing the immobilization of the front wheel, by interposition of a device between the r-yens, characterized by the fact that the device is integral with the soft tubes of the fork of the vehicle.  2) Device according to 1 characterized in that it consists of two parts which can also be separated or combined according to whether it is in the removed position or in service  3) Device according to 1 and 2 characterized in that part A corperte a fork inside which is housed the tube of the vehicle fork.  4) Device according to any one of the preceding claims, characterized in that the complementary part to the part A consists of two parts B and C per: ett.nt the adjustment of the length according to the spacing of the fork of the vehicle .  5) Device according to any one of the preceding claims, characterized in that part C comprises a jaw whose two freely movable elements around axes 17 close when the tube of the vehicle fork comes to bear.  6) Device according to any one of the preceding revcndications characterized in that the parts A and B are assembled by mortise tenon and are;: held in place by a lock threaded in holes 12 and 4  7) Device according to any one of the preceding claims, characterized in that the part A comprises a bar 5 provided with a lug 6 intended to be inserted into a hole 10; this device serves to align the two parts and to facilitate the introduction of the lock.