Abstract:
A windshield wiper spoiler structure is constructed to include a windshield wiper spoiler, and a visual signal source fixedly located on the windshield wiper spoiler and electrically connected to the battery power circuit of the motor vehicle in which the windshield wiper spoiler structure is installed and adapted to produce a visual warning signal when turning on the windshield wiper spoiler.

Description:
BACKGROUND OF THE INVENTION  
         [0001]    1. Field of the Invention  
           [0002]    The present invention relates to a windshield wiper for motor vehicle and, more particularly to a windshield wiper spoiler structure, which produces a visual warning signal when turning on the windshield wiper spoiler.  
           [0003]    2. Description of the Related Art  
           [0004]    When driving a motor vehicle in a raining day or at dark, the driver may be unable to see the antecedent cars or the cars coming from the opposite lane. When driving a motor vehicle during raining or at dark, a traffic accident tends to occur. In order to prevent a traffic accident when driving a motor vehicle during raining or at dark, the driver usually will turn on the headlamps or flash the turn signal lamps. However, a motor vehicle driver may forget to turn on the headlamps or flash the turn signal lamps when driving a motor vehicle during raining or at dark. In this case, a traffic accident may occur easily.  
         SUMMARY OF THE INVENTION  
         [0005]    The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a windshield wiper spoiler structure, which automatically produces a visual warning signal to the driver of the car going in front or the car coming from the opposite lane when the windshield wiper spoiler turned on. According to one aspect of the present invention, the windshield wiper spoiler structure comprises windshield wiper spoiler, and a visual signal source fixedly located on the windshield wiper spoiler and electrically connected to the battery power circuit of the motor vehicle in which the windshield wiper spoiler structure is installed and adapted to produce a visual warning signal when the windshield wiper spoiler turned on. According to another aspect of the present invention, the visual signal source is comprised of a casing, a lighting circuit assembly mounted within the casing and electrically connected to the power supply of the motor vehicle. Therefore, when the windshield wiper spoiler turned on, the lighting circuit assembly is driven to produce a visual warning signal. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0006]    [0006]FIG. 1 is an exploded view of a windshield wiper spoiler structure according to the present invention.  
         [0007]    [0007]FIG. 2 is an elevational perspective view of the present invention.  
         [0008]    [0008]FIG. 3 is another elevational view of the present invention when viewed from another angle.  
         [0009]    [0009]FIG. 4 is a schematic sectional view of the present invention, showing the lighting circuit assembly started.  
         [0010]    [0010]FIG. 5 is an applied view of the present invention, showing the wiper blade complete moved over the windshield, the lighting circuit assembly turned on.  
         [0011]    [0011]FIG. 6 is a circuit block diagram of the lighting circuit assembly for the visual signal source of the windshield wiper spoiler structure according to the present invention. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0012]    Referring to FIGS.  1 ˜ 3 , a windshield wiper spoiler structure in accordance with the present invention is shown comprised of a windshield wiper spoiler  1 , a connector  2  provided at the windshield wiper spoiler  1 , and a visual signal source  3  installed in the windshield wiper spoiler  1 . When turned on power supply, the visual signal source  3  provides a visual warning signal (flashes or emits light) to the cars going in front or the cars coming from the opposite lane.  
         [0013]    The windshield wiper spoiler  1  is of the known art, having a watertight window  11 , and two mounting holes  12  and  12 ′ disposed at two sides of the watertight window  11 . Fastening members, for example, screws  13  and  13 ′ are installed in the mounting holes  12  and  12 ′ to fixedly secure the connector  2  and the visual signal source  3  to the inside of the windshield spoiler  1 .  
         [0014]    The connector  2  comprises a base  21 , a first mounting portion  22  extended from one end of the base  21  and fixedly fastened to the windshield wiper spoiler  1 , and a second mounting portion  23  extended from the other end of the base  21  for fastening to the wiper arm complete (not shown).  
         [0015]    The visual signal source  3  comprises a casing  31 , a lighting circuit assembly  32  mounted inside the casing  31 , and a cover  33  sealed to the casing  31  to hold the lighting circuit assembly  32  inside the casing  31 . The casing  31  comprises a lens  311  fitting the window  11  of the windshield wiper spoiler  1 , and two mounting flanges  312  and  312 ′ respectively extended from two opposite lateral sides thereof and respectively fastened to the mounting holes  12  and  12 ′ of the windshield wiper spoiler  1  by the screws  13  and  13 ′. The lighting circuit assembly  32  has lead-out wires  321  respectively connected to the positive and negative terminals of the power supply of the motor vehicle (not shown) in which the invention is installed. The lighting circuit assembly  32  can be controlled to flash or steady light subject to a predetermined control program.  
         [0016]    Referring to FIGS. 4 and 5, after installation of the wiper arm in the connector  2  and installation of the present invention in the corresponding windshield wiper motor assembly of the motor vehicle, the lead-out wires  321  of the visual signal source  3  are respectively connected to the positive and negative terminals of the power circuit of the motor vehicle. When turned on the windshield wiper spoiler  1  and the windshield wiper motor assembly of the motor vehicle to move the wiper arm, the blade  5  of the wiper blade complete  4  is moved with the wiper blade complete  4  and the windshield wiper spoiler  1  back and forth on the windshield  6  to remove rainwater from the windshield  6 , and at the same time the lighting circuit assembly  32  of the visual signal source  3  emits light  7  through the lens  311  and the window  11  to give a visual warning signal to the cars going in front or the cars coming from the opposite lane.  
         [0017]    Referring to FIG. 6, the light circuit assembly  32  comprises a voltage stabilizer unit  322 , a control unit  323 , and a display unit  324 . The voltage stabilizer unit  322  rectifies input power and provides a stabilized voltage to the control unit  323  and the display unit  324 . When the light circuit assembly  32  turned on, the control unit  323  controls the display mode of the display unit  324  subject to the program built therein. The display unit  324  can be formed of a set of light emitting diodes, lamp bulbs, or electroluminescent lamps.  
         [0018]    Further, a sealing strip may be sealed between the casing  31  and the cover  33  to keep the inside space of the casing  31  against rainwater. Alternatively, a bonding resin may be molded in the casing  31  over the light circuit assembly  32  to protect the light circuit assembly  32  against rainwater. Other suitable methods, such as the use of supersonic bonding to seal the casing  311  and the cover  33  together to keep the lighting circuit assembly  32  against rainwater can also be accepted.  
         [0019]    A prototype of windshield wiper spoiler structure has been constructed with the features of FIGS.  1 ˜ 6 . The windshield wiper spoiler structure functions smoothly to provide all of the features discussed earlier.  
         [0020]    Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.