DE10220308C1 - Bicycle emergency lighting uses electroluminescent cord or electroluminescent strip light sources vulcanized in surface of rubber bicycle tire - Google Patents

Abstract

The emergency lighting uses light sources (1,1.2) which are vulcanized within the surface (3) of a rubber bicycle tire, in the form of an electroluminescent cord or an electroluminescent foil strip, supplied with current via insulated bicycle spokes from a hub dynamo, or via coils (11) vulcanized within the tire sidewalls and cooperating permanent magnets (9).

Description

For years it has been observed that many young people and children, but also adults Do not use bicycles or bicycles that are only partially illuminated. Either the lighting is defective or the effort of the buzzing dynamo bothers you.

According to the Federal Statistical Office were due to missing or inadequate bicycle lighting

1999 929 injured and 19 fatalities 2000 987 injured and 12 fatalities

to complain.

In DE 200 15 506 U1 a lighting device for inline skates, roller skates, Kick scooters and bicycles revealed.

In this lighting device, light-emitting diodes and coils are embedded or poured. The magnets attached outside the impeller generate energy in the coils Electricity that lights up the light emitting diodes.

The invention specified in claim 1 is based on the problem of traffic accidents due to inadequate or lack of lighting and reduce the comfort level especially to deal with young people.

This problem is solved by the features listed in claim 1.

The advantage of this invention is a bicycle emergency light that cannot be switched off, that no cables are available that is not prone to interference and that in the dark from the front, from behind and visible on both sides.

In the bicycle tire, several light strips are vulcanized into the tread grooves, which rotate through of the wheel shine. These rotating light strips are visible up to 200 meters and immediately as Bicycle recognizable. With the increasing house and garden lighting, especially for Christmas time, the normal bicycle taillight literally goes under.

It is an emergency light, the meaning is "to be seen". It can't be the conventional one Replace bike lights, but maybe become a requirement.

This emergency light is primarily intended for young people who only like something new when it looks cool. These rotating light strips could meet these expectations.

An embodiment of the invention is shown in the drawings 1 and 2 and is in Described in more detail below.

Show it

Drawing 1
Image 1 front wheel with 12 light strips

Drawing 2
Image 2 tire top view with 3 different versions of the light strips
Image 3 wheel side view

Drawing 3
Fig. 4 wheel side view of generator coils
Fig. 5 Tire top view of generator coils
Fig. 6 Tire cut with permanent magnets

The light strips (1-1.2) shown in Figure 2 are made of electroluminescent cord or electroluminescent foil. The light strips are vulcanized into the profile grooves in the rubber surface ( 3 ) and can be adapted to the profile (2 ) (see Figure 2).

Transparent profile surface (similar to rubber like inline rollers) simplifies production. The electroluminescent light strips are a cold light source that is generated by a changing, electric field stimulates a phosphor layer to glow.

Technical specifications

Operating voltage range: 60-110 V ~
Current consumption of film 50 cm ²

× 0.2 mm: 13 mA
Current consumption cord 1 m × 2 mm: 6 mA
Working frequency range: 50 to 3000 Hz
Working temperature range: -50 to + 65 ° C
Burn time: 25,000 hours

The voltage is supplied by a 60 V grain dynamo or a 6 V grain dynamo with a downstream inverter via insulated spokes ( 8 ) to the rim ( 5 ). On the inner wall of the rim, contact strips transfer the tension to the tire via the contact points (7). The wiring ( 6 ) of the light strips is vulcanized into the tire casing (4). The front and rear wheel lighting is identical.

Another possibility of the voltage supply is shown in the drawing 3. In the tire sidewalls, coils (11 ) are vulcanized into the entire sidewall on both sides, which generate voltage through permanent magnets (9) arranged close to the tire outer wall. The coils ( 11 ) are only partially shown in Figures 4 and 5. Figure 6 shows the tire ( 12 ) as a section and the permanent magnets ( 9 ) arranged close to the tire sidewall on both sides. The holder ( 10 ) of a permanent magnet ( 9 ) is shown in Figure 4.

The relatively high working voltage of 60-80 V ~ at the minimum current of 20 mA is harmless, in addition, the light strips are in an isolated transparent rubber vulcanized into the hose. The tension is only present when the wheel turns, that is should not be touched because of the rotation.

List of reference symbols

1

Standard light strips

1.1

Light strips adapted to the profile

1.2

Light strips interrupted

2

profile

3rd

Rubber surface

4th

Tire casing

5

rim

6th

wiring

7th

Contact point

8th

spoke

9

Permanent magnet

10

Magnetic holder

11

Generator coils

12th

Cut tires

Claims (1)

1. Emergency lighting for a bicycle, with illuminants ( 1 , 1.1 , 1.2 ) which are vulcanized into the bicycle tire, characterized in that the illuminants ( 1 , 1.1 , 1.2 ) used are electroluminescent cords or electroluminescent film strips that are over isolated spokes ( 8 ) be fed with electricity generated by a hub dynamo.