FR3078522A1 - FOR BIKES, ANTI-THEFT BY BRAKING AT LEAST ONE OF THE TWO WHEELS - Google Patents

Abstract

For bicycles, anti-theft braking of at least one of the two wheels. The antitheft according to the invention is particularly intended for bicycles, its action aims to curb and / or make noisy the movement of the bike. For this the invention is characterized in that it comprises: at least one braking means, for example: either a shoe (26) acting on the rim (2b) or the tire or the hub; either simply by using the bike's normal brake system (drum, disc, V.Brake ...). a means for actuating the braking means which can be active or passive and / or direct or indirect by the interposition of a connecting means. - Possibly anti-theft means of attachment to a support outside the cycle such as an anti-theft cable (5) for example. Thus, while retaining the advantages of the traditional anti-theft shoe, the anti-theft device according to the invention does not risk damaging the spokes and therefore the wheel.

Description

For bikes (cycles in general), anti-theft device by braking at least one of the two wheels.

Traditionally, hoof type locks are horseshoe-shaped frames attached to the bicycle frame. These "shoes" immobilize the rear wheel (in general and preferably) by passing a bar through the spokes of the wheel, it is simply the principle of the stick in the wheel ...?

The major drawback is the fact that the thief (or the owner of the bicycle if he is dizzy or distracted) by wanting to move the bicycle by pedaling or pushing it on foot, causes a violent shock on at least one radius, II s 'ensue that the shocked spoke is bent or worse broken or torn off, which veils the rim, making use very difficult, if not impossible, after unlocking said anti-theft device "Shoe"!

The lock according to the invention aims to vigorously brake the bicycle, in order to dissuade a possible thief who wishes to use it immediately

For this, the invention is mainly characterized by:

- at least one braking means such as for example: either a pad acting on the rim or the tire or the hub; or simply by using the normal brake system of the bicycle (drum, disc, V.Brake ...).

- a means of actuating the braking means which can be active or passive and direct or indirect by the interposition of a transmission means.

This means of actuating the braking means can be for example:

. Conventionally, a key cooperating with the barrel of a lock fixed on the support of the braking means.

. An electric control coupled to the on / off switch system of an electrically assisted bicycle (VAE).

. An electromagnetic control controlled by a smartphone.

- possibly an anti-theft means of attachment to a support external to the cycle, such as an anti-theft cable (5) for example.

This braking system is therefore an anti-theft device since the voluntary action of the user dissuades theft or temporary borrowing of his bicycle, making the bicycle difficult and / or noisy to roll since the wheel (preferably rear) is braked or even blocked.

According to a particular embodiment, the invention comprises mainly and in the order of the kinematic chain:

- A means of actuation by a key cooperating with a barrel integral with a cam mechanism (s) acting on the braking means directly, or indirectly by means of a connecting means. Said actuation means can be active (it is he who sleeps on pressure on the lefs) pstmfs) fret, or passive (by letting a spring push the brake pad)

- Possibly a connecting means between the actuating means and the brake lug (s) such as for example: cable (s), link (s), pulley (s), rod (s), horn (s) ), belt (s), chain (s) ...

- A braking means as for example: at least one fret shoe, preferably noisy when it is in friction. Said brake shoe and its support acting by sliding (like a piston), or by oscillation thanks to an articulated mechanism such as a lever arm provided with a pivot axis.

Optionally and advantageously, the anti-theft device by brake lug (s) according to fteverrtton will be coupled to an anti-theft device by cable or folding plate (mason meter type) or in a U-shape; so that the actuating means, the die in this case, acts at the same time to release the anti-theft brake shoe (s) which also constitute a parking brake, and the said anti-theft cable dit tells you freight is preferably made of a material 15 which will have the specificity of emitting a loud and unpleasant noise when it is in contact with the friction zone provided on the wheel and when said wheel is rotated.

The accompanying drawings illustrate the invention.

FIG. I represents a rear view of a bicycle fitted with fantivof according to the invention in its "indirect active" configuration, acting on the rim of the rear wheel.

Figure 2 shows a left side view of Figure 1.

FIG. 3 represents a top view of FIG. 1.

FIG. 4 represents a sectional view along B-B of FIG. 2.

Figure 5 shows a view of% rear right, the lock being devoid of its protective cover, and with its braking means (pads) retracted.

FIG. 6 represents a view similar to FIG. 5 but with the braking means actuated, therefore pulled out to pinch the rim.

Figures 7 shows a rear view of a bicycle fitted with the lock according to the invention in its "indirect passive" configuration, acting on the rim of the rear wheel.

FIG. 8 represents a view on the left side of FIG. 7.

FIG. 9 represents a view in set section A-A of FIG. 8.

Figure 10 shows an enlarged figure 7 of the anti-theft device alone, with the lines hidden in potfffflés.

FIG. 11 represents a view from the right rear%, the lock being devoid of its support cover, and with its braking means (pads) retracted.

Figure 12 shows a view similar to ter Figure 11 but with the key turned, which actuates the braking means, which is therefore found out to pinch the rim.

Figure 13 shows a view similar to Figure 12 but with the key removed from its lock, the unlocking lever being removed to improve visibility.

FIG. 14 represents a view similar to ter in FIG. 12 but with the lock (body and barrel) removed to improve visibility.

FIG. 15 represents a view of% bitter right, of a bicycle fitted with the lock according to the invention in its "direct active" configuration, acting on the rim of the rear wheel.

FIG. 16 represents a view of the anti-theft mechanism alone of the configuration of FIG. 15.

Figure 17 shows a view similar to Figure 16, the receiving piston being removed to improve visibility.

On the three embodiments shown, the elements having identical or similar functions will have identical numbers.

With reference to these drawings, according to a first preferred embodiment visible in views 1 to 6, a bicycle fitted with a rear wheel (2) and a traditional V-type brake (3) mounted on cleats (3a) , is equipped with the anti-theft device by braking (1) according to the invention.

In this first configuration, faction of the key (4) is active since it is the rotational force on the said key (4) which puts pressure on the pads (26) on the rim of the wheel (2), this indirectly by means of a link mechanism (21) pivoting on axes (22).

Said key (4) therefore actuates a barrel (7) housed in a lock body (6) fixed to the support plate (34) by screws (30). This barrel (7) rotates a drum (8) provided with tracks (8a) provided with cams (8b). Under the action of these cams (8b), fingers (9) integral with primary emitting pistons (10) cause these pistons (10) to translate into the bore of a support (16). On the right and on the left, a spring (11) of ad hoc length and calibration pushes the secondary emitter pistons (14) at first without really compressing. By turning, the key (4) therefore brought the shoe (26) into contact with the rim (2b), continuing to turn the key (4), the cyclist compresses the springs (11) which ensures a tightening and therefore braking on the rim (2b).

NB: Preferably, each track, the left and the right (8a), has two cams (8b) which define three zones:

- a first zone with a slope allowing a rapid approach of the skate towards the rim © (2b).

- a second zone with a gentler slope to easily allow the pressurization of the springs (11).

- A third zone without any slope, which immobitizes the fingers (9), without risk of movement back of the key (4).

To guarantee the return of each piston (14), a return screw (12) is screwed coaxially with the piston (14) and is free in translation when the spring compresses and abuts on a cup (13) integral with the piston (10 ) when the spring (11) is relaxed.

An axis (15) passes through the piston (14) to drive the link (21) provided with lights at each of its ends.

Under the action of the piston (14), pushed by the piston (10) via the spring (11), the link (21) pivots on its axis (22), driving at its other end a receiving piston (23) via a 15 axis (24).

Each piston (24) is preferably secured to a shoe holder (25) mounted eccentrically on the axis of the piston (24), which allows, thanks to a screw (27), to modify the height of the shoe (26) if necessary. rim look (2b).

Each piston (24) slides in the bore of a support (29) right and left monolithic support 20 (34) or fixed thereto by screws (30a).

For safety, the links (21) have a boss at their lower end which presses on a guillotine (28) having a return spring (33), the aim being to mask the imprint of the screws (30a) when the anti-theft function is active, the anti-theft device is thus impossible to remove. Two plugs (35) close the access holes for the screws (30a); holes which are made in the cover casing (31).

Screws / nuts (36) are provided to interface the connection between the cleats (3a) and the support plate (34).

Advantageously, the anti-theft device by braking (1) will include an anti-theft cable (5), the locking means of which is integral with the actuation means, in this case the key (4). For this, the drum (8) also has a housing with a slope which, by turning under the action of the key (4) pushes the pin (17). It is this pin (17), put under pressure by a spring (18), and which has a stopper (19) as its upper stop, which blocks the withdrawal of the end of the cable (5). A spring (32) allows the cone to be ejected, the free end of the anti-theft cable (5).

Still advantageously, the support plate (34) will have an open or closed profile by folding or molding (34b) which makes it possible to receive said cable / KX for proper storage.

According to a second preferred embodiment visible in views 7 to 14, the action of the key (4) is passive and indirect since the rotation of the said key (4) releases a pulley (38) which via cables (47 ) of transmission allows the action of the springs (11) which put under pressure the pads (26) on the rim (2b) of the wheel (2).

Again, said key (4) actuates a barrel (7) housed in a lock body (6) fixed by fitting into the cover (31) which therefore serves here as a support.

This barrel (7) in a monolithic or attached manner rotates a drum provided with a bore which receives a retractable first finger (39) which serves to block the pulley (38), and preferably a retractable second finger (17) also used to block any anti-theft cable (5).

Said finger (39) is put under pressure by a spring (40) which cooperates with a stop (41), identical solution for the finger (17).

A return spring (46) brings the barrel (7) back to neutral when the key (4) is released after having brought it back a little to decant it.

In this configuration, the action of activating the anti-theft device by brake (1) according to the invention is done by simply turning the key (4), and deactivation is obtained by turning a lever (37) secured to a pulley (38) whose axis of rotation is the screw (45); pulley (38) where the cable clamps (44) of the cables (47) are anchored, the other end of which carries a head which pulls on a piston (23) carrying the brake shoe (26). Said cables (47) are guided by gutters (52).

To allow all the activation and deactivation actions of the anti-theft device (1) with one hand, the pulley (38) is provided with a cam (38a) which also acts as a notch to hold the key (4) , and particularly visible in Figures 13 and 14.

In this case, here is the detail of the kinematics of the anti-theft device (1) according to the invention:

a) Turn the key (4) to release the pulley (38) which allows the brake shoe (26) to brake the wheel (2), in this direction of rotation of the key (4), the finger (39) climbs effortlessly on the cam ramp (38a)

b) Start to bring the key manually, to allow the finger (39) which is under the pressure of the spring (50) to retract slightly in order to pass the notch of the cam (38a), then release the key (4 ) so that it returns to neutral on its rotation stop under the action of the spring (46), the finger (39) henceforth preventing any action of return of the pistons (23) by the lever (37).

c) Once neutral, the key (4) can be removed, see figure 13. The lock is then fully active, the brake pads tightening the rim of the wheel (2) dissuade from rolling the bike, especially since the material used to make the said brake pads (26) generates a very unpleasant noise if the wheel (2) still accepts to turn under the thrust of the thief on the bike ...

d) To remove the anti-theft device (1), the owner of the bicycle introduces the key (4) into the barrel (7), turns the key until the finger (39) passes outside the pulley ( 38); situation similar to the sequence "a"; the key (4) is then held in this position, which allows the user to let go of the key!

e) With the same hand (or possibly the other) as that which turned the key, the cyclist can then actuate the lever (37) which by turning drives the pulley (38) which pulls on the cables (47) which causes the pistons (23) and therefore the pads (26) to be withdrawn, thereby liberating the bicycle from any anti-theft braking action. Concomitantly, by turning, the pulley (38) allows the key (4) to return to neutral under the action of the return spring (46).

Preferably, the pulley will have a return spring (43) in addition to the springs (11) of the pistons (23).

For safety, the invention provides that the lever (37) can be disengaged from the pulley (38) in the event that a thief seeks to force on said lever (37), for this a ball or a snowman (49) put under pressure. by a spring (not shown), are housed in the hub of said pulley (38) and cooperates in an ad hoc manner with a recess provided in the lever (37). By forcing the thief to drive the said lever (37) crazy, which protects the anti-theft mechanism (1) from any embezzlement ... By resetting the lever (37) on the pulley (38), the user can then by turning the key (4) deactivate the anti-theft device (1).

In this configuration, the fixing plate (34) is provided with lights (48) allowing a fixing on the same fixing points as your traditional anti-theft shoes.

Advantageously, the anti-theft device by braking (1) will include an anti-theft cable (5), the locking means of which is integral with the actuation means, in this case the key (4). For this, the barrel (7) has an additional finger (17) pressurized by a spring (18) which has an upper stop (51), it is this finger (17) which blocks the withdrawal of the end of the cable (5), to put the 1st cable (5) back into its housing, simply push on the said cable (5), the conical end of the cable (5) easily repels the finger (17) which then enters the cable groove (5).

A spring (32) pushes back the end of the anti-theft cable (5) when the key (4) is turned to activate the anti-theft device (1), which allows the end of the cable (5) to be extracted with just one hand. The other end is preferably fixed by a rivet (54) on said plate (34).

Still advantageously, the support cover (31) will have an open or closed profile by folding or by molding (31a) which makes it possible to receive said cable (5) for storing it properly. Said support cover (31) can be made of resistant plastic, it is clipped and possibly screwed onto the plate (34); which prevents access to the fixing screw (30a). Preferably, the key (4) remains in the barrel (7) when the bicycle is in a state of riding. For this a kind of nail (42) cooperates with a boss (38b) ad hoc of the pulley (38) and a specific notch of the key (4).

According to a third preferred embodiment visible in views 15 to 17, the action of the key (4) is active and direct since it is the force of rotation on said key (4) which puts the shoe under pressure. (26) on the rim (2b) of the braking means (26).

In this configuration, the bias is that only one brake shoe (26) is sufficient to brake the wheel (2), all the more since the material chosen for said shoe (26) would be particularly noisy and therefore dissuasive from forcing to make it roll. the bike.

In this case the invention is composed:

- a lock body (6), integral with a support (34c) in the shape of a stirrup. This support (34c) being fixed on the brake shoes (3a) by screws (30b) with head or anti-theft imprint. The use of screws / nuts (36) may be necessary.

- a barrel (7) integral monolithically or attached to a drum (8) carrying a track (8a) provided with cams (8b) in an identical manner to the first configuration described above.

- a finger (9) actuated by the track (8a) and which transmits its movement to a primary piston (10), coaxially, in this primary piston (10) is housed a secondary piston (23) which receives at its end exterior said pad (26). In order to ensure pressure of the pad (26) on the wheel (2), a spring (11) is interposed between the piston (10) and the piston (23). In order to allow the piston (23) to return, a screw (12) integral with the piston (10) slides in the piston (23) when the latter is inserted into the piston (10), and the head of this screw (12 ) abuts against the piston (23) when the latter emerges from the piston (10).

The more or less deep screwing of the screw (12) in the piston (10) makes it possible to adjust the play with the wheel (2) and / or the desired pressure on the rim (2b) of the wheel (2).

- a plug (53) obstructs the possible means of fixing the drum (8) carrying the track (8a) with the barrel (7).

This mode! particularly economical to produce can be dispensed possibly with an anti-theft cable (5), if necessary the support (34c) could receive this said anti-theft cable (5) as in the two previous configurations ...

The anti-theft device according to the invention is particularly intended for bicycles and cycles in general, its action aims at slowing down and possibly making noisy the movement of the bicycle. Thus, while retaining the advantages of the traditional shoe lock, the lock according to the invention does not risk damaging the spokes and therefore the wheel.

Claims (12)

1) For cycles, anti-theft by braking of at least one wheel, characterized in that it comprises: - At least one braking means such as for example: either a shoe (26) acting on the rim (2b) or the tire or the hub; or simply by using the normal brake system of the bicycle (drum, disc, V.Brake ...). - a means of actuating the braking means which can be active or passive and / or direct or indirect by the interposition of a connecting means. - possibly an anti-theft fixing means to a support external to the cycle such as an anti-theft cable (5) for example. 2) Anti-theft by braking (1) according to claim 1 characterized in that the braking means is a shoe (26) acting on the rim (2b) of a rear wheel (2), this shoe (26) is under the effect of an indirect active type of actuation means which includes: - A key (4) active since it is the rotational force on said key (4) which puts pressure on the pads (26) on the rim (2b) of the wheel (2), this indirectly by through a link mechanism (21) pivoting on pins (22). - A barrel (7) housed in a lock body (6) fixed to a support plate (34) by screws (30). - A drum (8) provided with tracks (8a) provided with cams (8b), each track, the left and the right (8a), has two cams which define three zones: . A first area with a slope allowing a quick approach from the skate to the rim (2b). . A second zone with a gentler slope to easily allow the pressurization of the springs (11). . A third zone without any slope, which immobilizes the fingers (9), without risk of movement back to the key (4). - Fingers (9) integral with primary emitting pistons (10) and which translate these pistons (10) in the bore of a support (16); on the right and on the left a spring (11) of ad hoc length and calibration pushes the secondary emitter pistons (14) at first without really compressing. - A return screw (12) which is screwed coaxially with the piston (14) and is free in translation when the spring is compressed and abuts on a cup (13) secured to the piston (10) when the spring (11) is relaxed . - An axis (15) which crosses the piston (14) to drive the link (21) provided with lights at each of its ends. - A link (21) which pivots on its axis (22), driving at its other end a receiving piston (23) via an axis (24); piston (23) where the shoe (26) is housed. - A support (29) right and left monolithic support (34) or fixed thereto by screws (30b), and in which slides the piston (23). 3) Anti-theft by braking (1) according to claim 1 or 2 characterized in that the braking means consists of at least one piston (23) which is integral with a shoe holder (25) mounted eccentric on the axis piston (24), which allows through a screw (27) to change if necessary the height of the shoe (26) opposite the rim (2b). 4) Anti-theft by braking (1) according to claim 1 or 2 characterized in that the actuating means comprise rods (21) which have a boss at their lower end which presses on a guillotine (28) having a return spring (33), in order to hide the imprint of the screws (30a) when the anti-theft function is active, the anti-theft device is thus removable, two plugs (35) close the access holes for the screws (30b); holes which are made in the cover casing (31). 5) Anti-theft by braking (1) according to claim 2 characterized in that the anti-theft fixing means to a support external to the cycle is an anti-theft cable (5), this anti-theft cable (5) has its locking means secured to the means d 'actuation in this case the key (4), for this, the drum (8) also has a housing with a slope which by rotating under the action of the key (4) pushes a pin (17); it is this pin (17) put under pressure by a spring (18) which has a stopper (19) as its upper stop which blocks the withdrawal of the free end of the cable (5). 6) Anti-theft by braking (1) according to claim 1 characterized in that the anti-theft fixing means to a support external to the cycle is an anti-theft cable (5) secured to a support plate (34) which has a profile (34b) open or closed, which allows to receive the cable (5) for proper storage. 7) Anti-theft by braking (1) according to claim 1 characterized in that the braking means is a shoe (26) acting on the rim (2) of the rear wheel, this shoe (26) is under the effect of an indirect passive type of actuation means which includes: - a key (4) which releases a pulley (38) which via transmission cables (47) allows the action of the springs (11) which pressurize the pads (26) on the rim (2b) of the wheel ( 2). - A barrel (7) which is housed in a lock body (6) fixed by fitting into a cover (31) which therefore serves here as a support. - an attached drum (8) is rotated by the barrel (7), this drum (8) is provided with a first retractable finger (39) which serves to block the pulley (38), and preferably a second retractable finger (17) which is used to block any anti-theft cable (5). - A spring (40) which cooperates with a stop (41) to push the finger (39), and identical solution for the finger (17). - a return spring (46) which brings the barrel (7) back to neutral when the key (4) is released after having brought it back a little to decant it. - A lever (37) integral with the pulley (38) where the cable clamps (44) of the cables (47) are anchored, the other end of which carries a head which pulls on a piston (23) carrying the brake shoe ( 26). - a pulley (38) which is provided with a cam (38b) which also acts as a notch to hold the key (4). 8) Anti-theft by braking (1) according to claim 7 characterized in that the lever (37) is integrally disengageable from the pulley (38) in case a thief seeks to force on the said lever (37), for this a ball or a snowman (49) put under pressure by a spring, is housed in the hub of said pulley (38) and cooperates ad hoc with a hollow arranged in the lever (37). 9) Anti-theft by braking (1) according to claim 7 characterized in that the support plate (34) is provided with lights (48) allowing a fixing on the same fixing points as the traditional anti-theft shoes. 10) Anti-theft by braking (1) according to claim 2 or 7 characterized in that the key (4) remains in the barrel (7) when the bicycle is in the state of circulation, for this a kind of nail (42) cooperates with an ad hoc boss (38b) of the pulley (38) and a specific notch of the key (4). 11) Anti-theft by braking (1) according to claim 1 characterized in that the braking means is a shoe (26) acting on the rim (2b) of the rear wheel (2), this shoe (26) is under the effect of a direct active type actuation means which comprises: - A key (4) active since it is the rotational force on said key (4) which puts pressure on the pad (26) on the rim of the wheel (2), this directly without the interposition of a means of transmission. - a lock body (6), integral with a support (34c) in the shape of a stirrup; this support (34c) being fixed on the brake shoes (3a) by screws (30b) with head or anti-theft imprint. - a barrel (7) integral monolithically or attached to a drum (8) carrying a track (8a) provided with cams (8b). - a finger (9) actuated by the track (8a) and which transmits its movement to a primary piston (10), coaxially in this primary piston (10) is housed a secondary piston (23) which receives at its outer end said skate (26). - a spring (11) is interposed between the piston (10) and the piston (23); in order to allow the piston (23) to return, a screw (12) integral with the piston (10) slides in the piston (23) when the latter is inserted into the piston (10), and the head of this screw ( 12) abuts against the piston (23) when the latter emerges from the piston (10). 12) Anti-theft by braking (1) according to claim 1 or 2 or 3 or 7 or 11 characterized in that the braking means, such as the brake shoe (26) for example, is made of a material which has the specificity of 'emit a loud and unpleasant noise when it is in contact with the friction zone provided on the wheel (2) and when said wheel is rotated.