Patent Publication Number: US-2007115680-A1

Title: Third back up light

Description:
BACKGROUND OF THE INVENTION  
      The present invention relates to a third back-up light, especially to a back-up indicating light disposed on corners or lateral area of the rear lamp set, and integrated with a tail light that acts synchronously with the original back-up light so as to increase safety and convenience for reversing.  
      Refer to  FIG. 1  &amp;  FIG. 2 , a rear lamp set  2  is disposed on right and left sides of the tail  11  of automobiles  1  respectively. The light source of the rear lamp set  2  can be light bulbs or LED(light-emitting diode) light and the design of the rear lamp set  2  is various. The rear lamp set  2  consists of a tail lamp (or a stop &amp; tail lamp)  21 , a rear turn signal lamp  22  and a back up lamp  23 . Although there are various designs of the car body, the rear lamp set  2  generally includes a tail lamp or stop &amp; tail lamp  21 , a rear turn signal lamp  22 , and a back-up lamp  23 . The rear lamp set  2  can be a single-part type (in  FIG. 1  ) or a two-part type, as shown in  FIG.2 . The rear lamp set  2  consists of two separated parts. The rear turn signal lamp  22  integrated with stop &amp; tail lamp  21  is disposed on right/left sides of a car tail, extending over the two corners  14  on the car tail to the lateral side  15 . Thus the tail lamp  21  can be seen from lateral side of vehicles. And the back up lamp  23  is arranged on right/left sides of a trunk lid  12 . Moreover, the rear lamp set  2  is composed by a transparent housing, an inner base, light source and wires. Furthermore, a conventional high mount stop lamp Set  6  disposed on a rear window  13  can also be included into the rear lamp set  2 . The high mount stop lamp set  6  is a one-piece part, arranged on or beneath the rear window  13  for assisting indication function of the stop &amp; tail lamp  21 .  
      The back up lamp  23  of the rear lamp set  2  is always disposed on middle part of the car tail  11  and is lightening for warning while the car is reversing. However, most of the light from the back up lamp  23  emits backwards so that the visible angle is quite narrow and the warning effect is insufficient. Vehicles or people see the light from the back up lamp  23  only when they are quite near the rear side of vehicles. Thus it is dangerous and inconvenient while reversing vehicles. For example, on parking area that the car tail faces a lane, drivers on the lane can&#39;t find that the car on the parking area is reversing in time due to narrow range of the back-up light. The two cars may collide and the car accident happens. Thus there is a need to improve warning effect for back-up light.  
     SUMMARY OF THE INVENTION  
      It is therefore a primary object of the present invention to provide a third back up light that is added on corners or lateral extension area of a rear lamp set structure of vehicles and works synchronously with original back up light so as to enhance insufficient warning effect of the original back up light of the rear lamp set and increase visible angle as well as warning area of the back up light. Thus the safety and convenience for reversing vehicles are improved.  
      It is another object of the present invention to provide a third back up light that is disposed directly on structure of the rear lamp set and the third back up light is assembled as well as integrated with the rear lamp set. Thus the assembling of the third back up light is finished at the same time with the assembling of the rear lamp set. The device is easy to be assembled and is attached with the rear lamp set to form a general specification for the rear lamp set.  
      It is a further object of the present invention to provide a third back up light that provides a back-up indicating light disposed on an accommodation slot between an inner base and a transparent cover of the rear lamp set, located on corners or lateral extension area thereof. The addition of the back-up indicating light won&#39;t affect original function of the rear lamp set.  
      It is a further object of the present invention to provide a third back up light that emits white light-the same with the light of original back-up light , light with other colors, or blinking light so as to enhance warning effect for reversing. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       FIG. 1  is a schematic drawing of a conventional single-part rear lamp set for vehicles;  
       FIG. 2  is a schematic drawing of a conventional two-part rear lamp set for vehicles;  
       FIG. 3  is a schematic drawing showing a single-part rear lamp set for vehicles in accordance with the present invention in usage;  
       FIG. 4  is a schematic drawing showing a two-part rear lamp set for vehicles in accordance with the present invention in usage;  
       FIG. 5  is a schematic drawing of an embodiment in accordance with the present invention;  
       FIG. 6  is a top view of the embodiment in  FIG. 5 ;  
       FIG. 7  is a schematic drawing showing that an embodiment of the present invention is applied to a high mount stop lamp set. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
      Refer from  FIG. 3  to  FIG. 6 , the present invention features on that a back-up indicating light  5  is disposed on corners or lateral extension area of a rear lamp set  4  structure. No matter the rear lamp set  4  is a single-part type shown in  FIG. 3  or a two-part type shown in  FIG. 4 , the back-up indicating light  5  is integrated with the part it disposed to form a structure.  
      Light source of the rear lamp set available now can be light bulbs or light-emitting diode (LED) lights. The present invention can be applied to the rear lamp set with light bulbs or LED lights. Take the rear lamp set  4  in  FIG. 5  &amp;  FIG. 6  as an example, the rear lamp set  4  consists of a transparent cover  41 , an inner base  42  and control wires  43 . The transparent cover  41  includes areas with various functions such as turn signal lamp area  41   a , or brake light area  41   b . The inner base  42  has lamp holders and light bulbs. Corresponding to various areas of the transparent cover  41 , inner space of the inner base  42  is divided into a plurality of accommodation slots  42   a ,  42   b  for convenience of assembling various areas. As shown in  FIG. 5  &amp;  FIG. 6 , the accommodation slot  42   a  corresponds to the turn signal lamp area  41   a  while another accommodation slot  42   b  corresponds to the brake light area  41   b . A partition plate  44  is located between the two accommodation slots  42   a ,  42   b . A concave mirror  42   c  is disposed on each of the accommodation slots  42   a ,  42   b  for reflecting and converging light so that light from each light source in different areas emits separately. The present invention features on that a back-up indicating light  5  acting as a third back-up light is added on corner area  45  or lateral extension area  46  of the rear lamp set  4 . Thus the warning effect of the back-up indicating light  5  is extended to the position of two corners on the car tail  14  or car sides  15  so that the back-up indicating light  5  can be seen from lager area of the rear side of the vehicles.  
      Refer to  FIG. 6 , an accommodation slot  51  with proper size is arranged between the transparent cover  41  and the inner base  42  for installment of a light source  52  providing light for back-up that can be a light bulb or a LED. Corresponding to the light source  52 , a back-up light area  53  is on the transparent cover  41  so as to make the light source  52  project white light outwards through the back-up light area  53 . The back-up indicating light  5  includes the accommodation slot  51 , the light source  52  and the back-up light area  53 . The disposition of the back-up indicating light  5  has no influence on indications of other areas such as turn signal lamp area  41   a , or brake light area  41   b  on the rear lamp set  4 . Moreover, the accommodation slot  51  is installed in similar way of the accommodation slots  42   a ,  42   b . Furthermore, wires  54  of the back-up indicating light  5  is connected with original control wires (not shown in figure) of the back-up light in the rear lamp set  4  so as to make the assembling of the back-up indicating light  5  finish at the same time with the assembling of the rear lamp set  4  and the back-up indicating light  5  works synchronously with the original back-up light.  
      In practice, the back-up indicating light  5  is disposed on the corners  45  or the lateral extension area  46  of the rear lamp set  4  and the position varies in accordance with the inner structure, design or type of the light source such as light bulb or led. Basically, the visible angle of the back-up indicating light  5  is enlarged into large area behind the vehicles once the back-up indicating light  5  is inside the corners  45  or the lateral extension area  46  so as to enhance the insufficient warning effect of the rear lamp set  4 . Moreover, the visible angle as well as waning area of the back-up light for vehicles is increased and the back-up indicating light  5  works as a third back-up light, just like the high mount stop lamp set.  
      Refer to  FIG. 3 ,  FIG. 4  &amp;  FIG. 7 , a high mount stop lamp set  7  basically includes parts such as a transparent cover  71 , an inner base and control wires (not shown in figure). The present invention having a back-up light  8  disposed on the high mount stop lamp set  7 . The back-up light  8  is preferably arranged on middle part of the transparent cover  71 . The disposition way of the back-up light  8  on the high mount stop lamp set  7  is similar to the arrangement of the back-up indicating light  5  on the rear lamp set  4 . The light source of the back-up light  8  and the high mount stop lamp set  7  can be light bulbs or LED. Moreover, a back-up area  81  is arranged on the transparent cover  71 , corresponding to the back-up light  8 , so that the light from the back-up light  8  is projected outwards just like white light of general back-up lights. Furthermore, wires of the back-up light  8  connect with control wires (not shown in figure) of original back-up lights of the rear lamp set  4  for synchronous action with the original back-up light. The above-mentioned high mount stop lamp set  7  with the back-up light  8  and the back-up area  81  is especially suitable for vehicles without trunk lid on tail part such as five door vehicles or caravans because the high mount stop lamp set  7  has functions of both back-up indication and warning effect.  
      The above-mentioned third back-up indicating light  5  or  8  can emit the same white light of the original back-up light, light with other colors, or blinking light for enhancing warning effect while reversing vehicles.  
      In accordance with the above design, the present invention has following effects:  
      [1]The back-up lights  5 ,  8  have larger visible angle and better warning effect so as to enhance warning effect of the original back-up light in the rear lamp set and work as a third back-up light, similar to the high mount stop lamp.  
      [2]The back-up lights  5 ,  8  are manufactured and assembled with the rear lamp set  4  or the high mount stop lamp set  7 . They works synchronously with original back-up light of the rear lamp set  4  without any influence on function of the rear lamp set  4 . Thus the manufacturing and assembling processes are simplified.  
      [3]Due to integrated manufacturing and easy assembling, the third back up lights  5 ,  8  is getting popular and the safety as well as convenience of reversing is improved.