Warning device for a bicycle

A warning device for generating an audible warning sound and adapted for incorporation in the end of a handle-bar of a bicycle, said handle-bar comprising a wall of generally circular cross-section defining a hollow central portion and having a handgrip around the outer surface of said wall of said handle-bar, said handgrip having an end which is generally co-extensive with the end of said wall, said warning device comprising a casing of insulating material having a tubular portion for fitting within said hollow central portion of said handle-bar, and a head portion comprising a compartment defined by a first flat radially-extending wall fixed to a first end of said tubular portion, an axially projecting peripheral flange, and a second wall spaced outwardly from said first wall and abutting said flange, said second wall having at least one sound passage therein, a leaf spring member extending longitudinally outside said tubular portion from a second end, opposite said first end, to said first end in an arc-like configuration for engagement with the inner surface of said wall of said handle-bar to retain said tubular portion within said hollow central portion with said first wall of said head portion abutting said end of said handgrip, a piezoelectric transducer mounted within said compartment, circuit means within said tubular portion connected with said piezoelectric transducer to form an oscillatory circuit, an electric cell within said tubular portion for supplying electric power, and switch means externally of said head portion including a pressure sensitive switch connected through said switch means to said cell and said circuit means, said switch having an open and a pressure-operated closed condition and in said closed condition providing electric power to said oscillatory circuit causing said transducer to generate an audible sound.

A warning device for generating an audible warning sound and adapted for incorporation in the handle-bars of a bicycle, said handle-bar comprising a handle-bar wall of generally circular cross-section defining a hollow central portion, said warning device comprising:

• a tubular portion for fitting within said hollow-central portion and having opposite first and second ends;
• a leaf spring member extending from said second end to said first end of said tubular portion and having an arc-like configuration for engaging the inner surface of said wall of said handle-bar for retaining said tubular portion within said hollow-central portion;
• a head portion fixed to said first end of said tubular portion for abutting the end of said handle-bar;
• a transducer mounted within said head portion;
• circuit means within said tubular portion connected with said transducer;
• means for supplying electric power to said circuit means for generating said transducer to generate an audible sound;
• and
• switch means extending from said head portion externally of said handle-bar and connected to said means for supplying electric power whereby operation of said switch means supplies electric power to said circuit means for generating said audible sound.

A warning device for a bicycle, comprising:

• a casing having a tubular portion sized for fitting within the end of a bicycle handle-bar and a head portion for abutting the end of said handle-bar,
• circuit means in said tubular portion,
• a transducer in said head portion and connected with said circuit means,
• means within said tubular portion for supplying power to said circuit means and having first and second terminals, said second terminal being connected to said circuit means,
• a spring member extending outside said tubular portion substantially the entire length thereof and having an arc-like configuration for engaging the inside of said bicycle handle-bar for retaining said casing in position, and
• a switch having an open and a closed condition mounted to said head portion and accessible externally, said switch having a first terminal connected through said spring member to said first terminal of said cell and a second terminal connected to said circuit means, said switch in said closed condition supplying electric power to said circuit means and said transducer for generating an audible sound.

A warning device for a bicycle, comprising:

• a casing having a tubular portion sized for fitting within the end of a bicycle handle-bar and a head portion for abutting the end of said handle-bar;
• means for securing said warning device to said handle-bar;
• drive circuit means in said tubular portion;
• means for supplying power to said drive circuit means;
• a transducer in said head portion connected with said drive circuit means:
• and
• switch means comprising a switch arm of flexible insulating material extending from said head portion and curving over the end of a handgrip portion of said handle-bar and including a substantially flat member of flexible insulating material at the end of said switch arm adjacent said handgrip portion, said flat member containing a pressure actuated switch, said pressure actuated switch being operable with pressure on said flat member between an open condition and a closed condition for energizing said drive circuit means to operate said transducer.