DE19531315A1 - Pedal locking system for protection of bicycles against theft - Google Patents

Abstract

The system locks the pedals of a bicycle, in order to prevent it from being ridden away. The pedals may be detached from the pedal cranks and then locked to a lock bit on the lower part of the bicycle frame, so as to obstruct the rotation of the cranks. The bit may be built into the lower frame during mfr. or may be added afterwards in which case it may be fastened in place by a secure clamp. The clamp may be fitted with a screw with staggered half slits in its head, in order to prevent it from being undone with ordinary tools.

Description

(2.1)
This technical invention belongs to the field of preventing two-wheel theft, which is driven by pedals (bicycles).

(2.2)
The state of the art is that the prevention of bicycle thefts using all the conventional methods known to date (Holland lock, ring lock, etc.) for preventing these does not deter a potential thief.

(2.3)
The problem is solved according to the invention that, using a locking system, the pedals on the bicycle can be removed by a simple handle after they have been unlocked.

(2.4)
The underlying problem is the prevention of bicycle theft.

So far there is no really sufficient one in this area Protection to be optimally protected against theft.

The advantageous effect was inventively solved so that even a broken bike is useless for the thief as it comes with only one pedal is not ready to drive.

Unlike with conventional locks, which open when the Do not interfere with the function of the bicycle broken wheel with the bicycle pedal locking system absolutely unsuitable.

Even a bolt cutter or hacksaw would be useless for the thief.

In addition, this locking system offers no surface to attack Break open (stable and squeeze ring).

So the threshold disappears to steal a bike out of affect.  

A pedal that blocks a bicycle already shows one visually high level of deterrence.

(2.5)
One can imagine that this bicycle pedal closure system would be commercially usable for both the entire bicycle industry and for the accessories trade, since more than 60,000,000 bicycles are owned in Germany alone.

The type of bicycle pedal locking system alone would make one now saturated market of the bicycle industry good impulses bring, since it is also considered "chic", his bike too to back up.

(2.6)
The advantageous effect of the invention is described in the points given above.

(2.7) refers to (3).

Description of the locking process using the pedals

For comparison, a commercially available pedal is shown here on sheet 01 .

annotation

All the drawings described are shown on a 1: 1 scale.

Description of a developed prototype

Since it is known that there are few bicycle pedal manufacturers there, and there is a uniform production of pedals the locking system only between the nut and the thread integrated to make it compatible for the entire world market.

This is illustrated on sheet 01

As this is usually for the standard steel St 37 acts, the lock is integrated by simple welding.

This also ensures high stability to the occurring Intercept forces without twisting.

This is illustrated on sheet 02 in Fig. 02

At the same time, with this integrated lock in the pedals, the different pedal distances to the center of the bike balanced, since the right pedals are at a greater distance from the Center, due to the sprockets.

It is also apparent from this that this invention is the optimal place has on the left side of the wheel.  

In an exploded drawing on sheet 03 , both the connection to the pedal crank (Fig. 04 ) as well as the lock principle (Fig. 03 ) and the connection to the pedals (Fig. 02 ) are illustrated.

The lock principle was inventively solved in this case, based on a space-saving and stable combination lock.

If you now imagine the exploded view on sheet 03 as a unit, if the number combination is entered correctly, the beard with the thread (Fig. 03 ) remains as a fixed unit in the pedal crank (Fig. 04 ).

The entire pedal (sheet 02 ) can therefore only be installed in the pedal crank (sheet 03 / Fig. 04 ) when closed.

In order to prevent subsequent dismantling by 3., the nut (described on sheet 01 ) is protected by a squeeze ring after assembly so that a tool does not have a point of attack for dismantling.

If the owner now disassembles the pedals (lock the bike), this is now attached to the saddle tube, approx. 8 cm above the bottom bracket (sheet 04 / Fig. 05 ) on a robust clamp (Fig. 06 ) the same beard is in place as in the remaining pedal crank (Fig 04 / Fig. 03 ) and locked on the beard.

This is possible because the beards are all the same physical structure, only the number combinations differ.

In the bicycle pedal locking system described here of a retrofittable bike lock system been assumed.

Thus, with the subsequent installation of a robust one and stable clamp released.

In order to prevent subsequent dismantling even with the locked system, the clamp (Fig. 06 ) is tightened with a slotted screw (Fig. 07 ), in which the slot is half-chamfered in order to only tighten the screw but not loosen it enable.

The corresponding lock nut is welded to the clamp.

Weather influences caused by dust, dirt, wetness, etc., do not deter the operation of this system, because the Pedals using a hand protection bag in these conditions can be assembled.

Claims (8)

1. Bicycle pedal locking system for theft protection from Bicycles. 2. The invention is characterized in that all standard DIN and common bicycle pedals through a simple Locking system using the bicycle pedals without any problems can be completed. The main claim to grant a patent is based here on the removability of the individual pedals, which by a locking system released from the pedal crank of the bicycle can be used and then used to block the bike and thus make them unfit to drive; just by blocking the Pedal crank. This happens because the released pedals in the lower Frame area is used to lock the bike. The patent therefore claims a completely new kind Theft protection, which is a completely different and thus new way goes as previously known closure systems. A connection with conventional locking systems with the Bicycle pedal locking system offers optimal protection to prevent Theft to be protected. 3. The invention is characterized in that both Bicycles from the manufacturer can be permanently installed (i.e.: the Lock bit is already fixed from the outset integrated component on the bicycle frame), as well as Retrofit kit (clamp) for all bicycles can be installed. It should also be noted that a bicycle with useful parts completed, which are essential for cycling.