DE29823608U1 - Brake light on the bike - Google Patents

Description

Description

Brake light on the bicycle

Battery-powered tail lights for bicycles have been around for more than a few years. These can be switched on and off for any length of time by pressing or sliding the switch on the lamp itself. In addition, some rear lights in the higher price range also come with a holder that makes it easy to attach the lamp to the bicycle. However, this design does not provide cyclists with comprehensive protection in traffic. There is no warning signal to other road users that the brakes are intended. This is particularly evident when driving closely between cars on narrow streets or between other cyclists. Until now, only motorized vehicles have brake lights, but it has not been recognized that cyclists, who are exposed to even greater risks, should also be protected.

The invention specified in claim 1 is based on the problem of constructing a brake light that automatically lights up when the bicycle brakes and thus warns following road users to exercise increased caution.

This problem is solved with the features listed in claim 1: "...a newly (...) installed external pressure switch (closes) the circuit only during braking";

The invention enables cyclists to move more safely in traffic. Whenever braking - whether just braking or completely stopping - a red brake light lights up on the back of the bicycle, like on cars, for example. This gives cyclists increased protection against rear-end and evasive accidents, both in traffic with motorized vehicles and among similar vehicles.

An advantageous embodiment of the invention is specified in claim 5. The further development according to claim 5 enables the brake lamp to be removed and taken along if necessary and therefore offers protection against possible theft.

Embodiments of the invention are shown in the drawings and are described in more detail below.
Show it:

Figure I : Overview of a bicycle with fully installed brake light, individual parts

enlarged figure &Pgr; : the back of the lamp with the battery compartment open

Figure &Igr;&Pgr;: the brake light switch between handlebar and handbrake

-2- Figure L: Brake light with external switch on the bicycle

A battery-operated red tail light is attached to the rear end of the luggage carrier with the corresponding holder as a brake light. Two cables 1 run from the battery compartment along the bicycle frame to the external pressure switch, which is attached at the front between the handlebars and the handbrake (to the rear wheel) 3. When running the cable along, care must be taken that the cable is not too tight on the handlebar's axis of rotation. Otherwise, the cable attachment will break when steering. In order to be able to take the lamp with you if necessary, the short cable section 1 belonging to the lamp must first be disconnected from the plug 2 of the rest of the cable and then the lamp itself must be pushed off the holder on the luggage carrier.

Figure IL: View into the battery compartment of the lamp

The TÜV-tested rear light of the brand "Relite" by "busch&müller" requires 2 x 1.5 volt batteries to operate. These are inserted in reverse order, i.e. the positive pole of one battery is next to the negative pole of the other battery. Two cables are soldered to contact surfaces 1 and 2. These are led out to the external switch through a hole drilled on the left side of the battery compartment. When using the brake light system, make sure that the original (sliding) switch 3, which is attached to the lamp itself, is set to "OFF". Otherwise the light will shine continuously.

Figure III.: Switch between handlebar and handbrake

The switch 2, which is newly installed in the circuit and is available in electronics stores, closes the battery-lamp circuit as soon as the push button on the switch is lightly pressed when the handbrake 4 is applied. After the brake is released, the contact is released again.

To attach the switch: The switch 2 is mounted in the gap between the handlebar and the brake handle, directly at the pivot point 1. The small push button 3 points in the direction of travel, i.e. perpendicular to the handbrake 4. If this is now pulled a third (the distance between the brake handle and the handlebar) or more, the brake light at the rear lights up.

Claims (6)

1. Battery-operated rear light for bicycles, which can be switched on and off for any duration by pressing or sliding the switch fitted to the lamp itself and which also has a fastening device for the bicycle which enables the lamp to be easily attached to and removed from the bicycle, converted into a brake indicator, characterized in that an external pressure switch ( Fig. I, 3 ) newly incorporated in the lamp-battery circuit closes the circuit only when braking. 2. Device according to claim 1, characterized in that the two cable ends are soldered to the cathode or anode plate ( Fig. II, 1 or 2 ) of the battery housing. 3. Device according to claim 1 or 2, characterized in that the new pressure switch ( Fig. III, 2 ) is located at the front of the handbrake ( Fig. III, 1 ). 4. Device according to one of the preceding claims, characterized in that there are two pressure switches on each of the two hand brakes (front/rear brake), which are connected in parallel to the brake lamp via the cables. 5. Device according to one of the preceding claims, characterized in that the brake light ( Fig. I, 1 ) can be removed if necessary by separating the lamp with its short cable piece on the attached plug ( Fig. I, 2 ) from the rest of the permanently attached power cable with the switch ( Fig. I, 3 ). 6. Device according to one of the preceding claims, characterized in that a similar switch as the pressure switch used here ( Fig. III, 2 ) is mounted at a location other than between the handbrake and the handlebar ( Fig. III, 1 ).