Abstract:
A warning device comprises a hollow tubular body in which a plurality of electrically-driven light emitting elements arm disposed in such a manner that the light emitting elements are controlled by an integrated circuit. In light of the radian of the pliable and light-transmitting tubular body, light emitted by the light emitting elements is so diffused as to brighten the tubular body on its entirety. The waxing device is thus made conspicuous by the tubular body.

Description:
FIELD OF THE INVENTION  
         [0001]    The present invention relates generally to a warning device, and more particularly to a warning device comprising a plurality of light-emitting elements, which are electrically driven and are arranged in combination in a hollow tubular body of a thermosetting plastic material. The hollow tubular body is soft, expandable, and pervious to light, the light-emitting elements are controlled by an integrated circuit, which is driven by a direct current dry battery. The radian of the tubular body enhances the diffusion of light emitted by the light-emitting elements, thereby resulting in improvement on the clarity of the warning device.  
         BACKGROUND OF THE INVENTION  
         [0002]    The U.S. Pat. No. 5,249,106 discloses a warning device, which comprises an acrylic rod for holding a light bulb. The acrylic rod is not a built-in component and is installed on a site where the warning device is located. This prior art warning device is therefore not cost-effective. In addition, the acrylic rod cannot be bent to conform to the shape and the size of the warning device. The use of the acrylic rod in the device is therefore limited.  
           [0003]    Another U.S. Pat. No. 5,879,076 discloses a warning device, which comprises a pliable solid body for holding a cluster of light bulbs. The solid body is not cost-effective and must be replaced in its entirety. In addition, the quality control of the solid body is costly.  
         SUMMARY OF THE INVENTION  
         [0004]    The primary objective of the present invention is to provide a warning device, which is cost-effective and is formed of a light-emitting diode (LED) bulb  30 , as shown in FIG. 1. The light-emitting diode bulb  30  emits light at an angle of α°. The LED bulb  30  is embedded in a hollow cylindrical body  20  of a plastic material such that the light emitted by the LED bulb  30  is diffused through the cylindrical body to form a light beam greater in light intensity and the illumination distance. As a result, the cylindrical body  20  has brightness, which is several times greater than that of the LED bulb  30 . The present invention can be easily made at a low cost In addition, the damaged or burnout LED bulb can be easily replaced.  
           [0005]    It is another objective of the present invention to provide a warning device comprising a plurality of light-emitting elements, which are electrically driven and are housed in a hollow tubular body of a thermoplastic material. The tubular body is soft, expandable, and pervious to light. The operation of the light-emitting elements is regulated by an integrated circuit driven by a direct current dry battery. In light of the radian of the tubular body, the light emitted is effectively diffused, thereby enabling the tubular body to become a light-emitting body which serves to make the waning device more conspicuous.  
           [0006]    It is still another objective of the present invention to provide a warning device comprising an electrically-driven light-emitting element which is housed in a soft, expandable and light-pervious tubular body of a thermoplastic material in such a manner that the light-emitting element is provided with a beam splitter to bring about a projection coaxial with the tubular body. The tubular body becomes in its entirety a light-emitting body.  
           [0007]    It is still another objective of the present invention to provide a warning device comprising an electrically driven light-emitting element, which is housed in a soft, expandable, and light-pervious tubular body of a thermoplastic material. The tubular body becomes in its entirety a light-emitting body by the light-focusing effect of a light-transmitting element.  
           [0008]    It is still another objective of the present invention to provide a warning device which is pliable and is externally provided with two retaining elements for retaining the warning device on human body, vehicle, animal, fixed structure, or object in need of warning effect. 
       
    
    
     BRIEF DESCRIPTION OF TIE DRAWINGS  
       [0009]    [0009]FIG. 1 shows a schematic view of a light beam of the LED bulb housed in the hollow cylindrical body of the present invention.  
         [0010]    [0010]FIG. 2 shows an exploded view of a first preferred embodiment of the present invention.  
         [0011]    [0011]FIG. 3 show a plan view of the first preferred embodiment of the present invention in combination.  
         [0012]    [0012]FIG. 4 show a perspective view of the first preferred embodiment of the present invention in combination.  
         [0013]    [0013]FIG. 5 show a plan view of a second preferred embodiment of the present invention in combination.  
         [0014]    [0014]FIG. 6 shows a plan view of a third preferred embodiment of the present invention in combination. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0015]    As shown in FIGS.  24 , the present invention comprises a warning device  10 , a light-transmitting element  20 , a plurality of light-emitting elements  30 , and an electric apparatus  40 .  
         [0016]    The warning device  10  is a hollow bag body having a bag opening  11 . a hook tape Velcro)  12 , and a pile tape (Velcro)  121  complementary to the hook tape  12  for easy fastening and unfastening the warning device  10 .  
         [0017]    The light-transmitting element  20  is of a hollow tubular construction and is made of a thermoplastic material. The light-transmitting element  20  has a high transmittance, The light-transmitting element  20  is soft and expandable. The light-transmitting element  20  is put into the warning device  10  via the bag opening  11  of the waning device  10 .  
         [0018]    The light-emitting elements  30  are light-emitting diode (LED) bulbs which arc serially arranged by a bonding wire  31  and arm disposed in the light-transmitting element  20 .  
         [0019]    The electric apparatus  40  is formed of a battery, a power source switch, and a drive circuit. The electric apparatus  40  is connected with the bonding wire  31 .  
         [0020]    The warning device  10  is fastened to an object by means of the hook tape  12  and the pile tape  121 .  
         [0021]    As shown in FIG. 5, a warning device of the present invention comprises a hollow bag body  10 , a light transmitting element  20 , a light-emitting element  30 , and a beam splitter  50 .  
         [0022]    The hollow bag body  10  has an opening  11 , a hook tape Velcro)  12  located at one end of the bag body  10 , and a pile tape (Velcro)  121  located at other end of the bag body  10  such that the pile tape  121  is complementary to the book tape  12  for fastening and unfastening the bag body  10 .  
         [0023]    The light-transmitting element  20  is made of a thermoplastic material having pliability and a high transmittance. The light-transmitting element  20  is put into the bag body  10  via the opening  11  of the bag body  10 .  
         [0024]    The light-emitting element  30  is a light-emitting diode (LE)) bulb, which is disposed in the light-transmitting element  20  such that the LED bulb  30  is serially connected with an electric apparatus  40  comprising a battery, a power source switch, and a drive circuit.  
         [0025]    The beam splitter  50  is an optical lens having a 50% light permeability and a 50% light reflectivity. The beam splitter  50  is disposed in the light-transmitting element  20  such that the bean spltter  50  is located at one end of the light-emitting element  30 . The light emitted by the light-emitting element  30  is projected in the direction corresponding to the axial direction of the light-transmitting element  20 , thereby enabling the light-transmitting element  20  to become a light-emitting body.  
         [0026]    As shown in FIG. 6, a warning device of the present invention comprises a hollow bag body  10 , a light transmitting element  20 , a light-emitting element  30 , and a light-permeating element  60 .  
         [0027]    The hollow bag body  10  has an opening  11 , a hook tape (Velcro)  12  located at one end of the bag body  10 , and a pile tape (Velcro)  121  located at other end of the bag body  10  such that the pile tape  121  is complementary to the hook tape  12  for fastening and unfastening the bag body  10 .  
         [0028]    The light-transmitting element  20  is made of a thermoplastic, material having pliability and a high transmittance. The light-transmitting element  20  is put into the bag body  10  via the opening  11  of the bag body  10 .  
         [0029]    The light-emitting element  30  is a LED bulb, which is disposed in the light-transmitting element  20  such that the LED bulb  30  is connected by a bonding wire  31  to an electric apparatus  40  comprising a battery, a power source switch, and a drive circuit.  
         [0030]    The light-permeating element  60  is convex or spherical and has a high light permeability and a light focusing reflectivity. The light-permeating element  60  is disposed in the light-transmitting element  20  such that the light-permeating element  60  is separated from the light-emitting element  30  by an appropriate distance.  
         [0031]    As the bag body  10  is fastened with an object by the hook tape  12  and the pile tape  121 , the light emitted by the light-emitting element  30  is projected by the light-permeating element  60  to enable the light-transmitting element  20  to become a light-emitting body.  
         [0032]    The light-emitting elements are disposed in a hollow tubular body of a thermoplastic material having pliability, a light permeability and a transmittance. The light emitted by the light-emitting elements is guided by the radian of the tubular body to diffuse, thereby enabling the tubular body to become a light-emitting body.  
         [0033]    The present invention is provided with a beam splitter, which is located at one end of the light-emitting element to bring about a projection coaxial with the tubular body.  
         [0034]    The present invention is provided with a light-permeating element of a convex or spherical construction to enable the light emitted by the light-emitting element to focus and project, thereby enabling the tubular body to become a light-emitting body.