The invention relates to an adjustable safety distance spacer for bicycles, comprising two guide tubes (1, 2), a spacer rod (5) which moves inside the aforementioned guide tubes and which passes through perforated plugs (9), a refracting rotor comprising four curved blades (7) and a circumferential protector (6) which is disposed at one of the ends of the spacer rod and which is solidly connected to said rod by means of a safety clevis (8), and two supports (3, 4) which are used to fix the guide tubes (1, 2) to the bicycle frame (10). In this way, the cyclist can adjust the size of a safety signal strip quickly, comfortably and safely using just one hand when he/she is being overtaken by another vehicle, thereby preventing the cyclist from being hit owing to the incompetency or carelessness of the driver of the overtaking vehicle.

An indication device capable of indicating its location, when used, by securely lighting or flashing a light emitter and securely stopping the wasteful consumption of power, when not in use, by automatically turning off the light emitter, comprising a case body which can be installed, when used, on a moving part using a pressure sensitive adhesive double coated tape or a mounting device, the light emitter which lights up or flashes by a current from the power supply installed on the case body, and an automatic switch which is installed between the light emitter and the power supply and turned on automatically when the device is used.

A lighting unit (1) for a bicycle detects the passage of magnet (4) mounted to a spoke (5) of a wheel. A light sensor (7) is provided for sensing ambient light. If the ambient light level is low, the lighting unit (1) automatically turns on a light if movement of the magnet (4) is detected (4). Additional light sources are turned on if the speed of the wheel is determined to be reducing.

A lighting unit (1) for a bicycle detects the passage of magnet (4) mounted to a spoke (5) of a wheel. A light sensor (7) is provided for sensing ambient light. If the ambient light level is low, the lighting unit (1) automatically turns on a light if movement of the magnet (4) is detected (4). Additional light sources are turned on if the speed of the wheel is determined to be reducing.

Es wird ein Schutzblech für Fahrräder aufgezeigt, das einen Körper (10) aufweist, der am Fahrradrahmen bzw. an einer Fahrradgabel so befestigbar ist, daß er in der an sich bekannten Weise in einem im wesentlichen konstanten Abstand zum Fahrradreifen über einen definierten Winkelbereich diesen umgebend fixiert ist. Zur Erhöhung einer Warn- und Signalwirkung wird vorgeschlagen, den Körper mit eingearbeiteten Signalflächen (11-13) auszustatten und aus einem Kunststoffmaterial zu fertigen, das einen fluoreszierenden (Tageslicht-) Farbstoff enthält und derart lichtdurchlässig oder lichtleitend ist, daß einfallendes Licht im Körper (10) weiterleitbar und mindestens teilweise an den Signalflächen (11-13) wieder abstrahlbar ist. Als Signalflächen können beispielsweise die Ränder oder Schmalseiten des Körpers dienen, welche im Gegensatz zu den glatten anderen Flächen (14,15) des Körpers rauh ausgebildet sind.

A decorative attachment for a wheel includes a circular rod-like frame having a diameter slightly less than the diameter of the wheel rim, and a decorated flexible material extending across and secured to the frame. The material has a central aperture to receive the hub and a multitude of small apertures throughout the material pro­viding a porosity of from about 30% to about 80% to enable transversely moving air to pass therethrough.

The disclosure relates to a rotary indicating device preferably in use, for example, for wheel covers for motor vehicles. The device includes a rotary base member having an indication region. The indication region indicates a desired image and comprises a plurality of reflection faces. The reflection faces are inclined in the same direction and also at the same angle with respect to a standard plane perpendicular to a rotary axis of the rotary base member. Thus, when the rotary base member rotates, the observer can visually recognize the image as a clear single image due to the after image phenomenon.

A reflective spoked wheel, for use for example on a bicycle, with spokes 4,5 which form two series respectively attached to the rim 1 on opposite sides of the central radial plane of the rim, and having reflective material on axially facing surfaces. To support the reflective material at least one elongate element 7, which is resistant to bending in the radial plane and follows the curvature of the rim, is attached to the wheel so as to lie near the rim between said two series of spokes. The element may be carried by supports 6 fixed to the rim 1.

Speichenrückstrahler mit einem Reflektorkörper, auf dessen einer Seite zwei Klipselemente (3, 4) zur, Befestigung dieses Reflektorkörpers an Speichen (5, 6) angebracht sind, wobei jedes dieser Klipselemente (3, 4) aus zwei an dem Reflektorkörper angeformten Schenkeln (7, 8) besteht und jeder dieser Schenkel Führungen und Rasten zur Aufnahme der Speichen aufweist. Diese Führungsflächen und Rasten sind auf der einander zugewandten Seite bogenförmig abgerundet, so daß der Rückstrahler auch bei Rädern Verwendung finden kann, deren Speichen verschiedene Winkel einschließen Jeweils einer dieser Schenkel ist mit einer federnden Abkröpfung (8e) versehen, so daß auch Speichen unterschiedlichen Durchmessers aufgenommen werden können.

An elongated reflector (7) in the form of a flexible tube with a light reflective surface, which in conformity with the circumference of a spoked wheel rim (3) is adapted to be passed between the spokes (5) and which comprises a coupling member (8) which is adapted to be inserted in at least one tube end and by means of which the two tube ends are detachably interconnectible. The tube (7) comprises a spring steel wire core (2) and the coupling member (8) comprises aids through which the reflector, via the ends thereof, is detachably connectible to the valve housing, while the length of the reflector in operative position is shorter than the inner circumference of the wheel rim (3).