Patent Publication Number: US-6336730-B1

Title: Luminous necktie

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     This invention relates to a luminous necktie, particularly to a luminous necktie wherein a large number of flashing light-emitting-diodes (LED) are installed in order to be exposed to a front part of the necktie, whereby the LEDs are positioned in harmony with designs formed in the front part of the necktie to give a sense of beauty to those who see the necktie and to increase discrimination of the designs at night. 
     2. Description of the Prior Art 
     In general, neckties are made to be worn hanging down the front of a shirt with a significant remainder of the length of the necktie visible after rounding and knotting of the necktie around the collar of the shirt. 
     Also, in the front parts of these neckties, various designs are printed to give a sense of beauty to those who see the neckties. However, at night, there is a problem in that the designs are difficult to see because discrimination of the designs decreases due to low light intensity. 
     That is, in the cases where somebody desires to attract peoples attention to the distinctive appearance of a necktie, such as religious ceremonies or events, there is a problem that, when the lighting is weak, the designs printed on a necktie cannot be seen in detail because discrimination of the designs decrease in the weak lighting. 
     SUMMARY OF THE INVENTION 
     This invention is established to solve the problems stated above. The object of the invention are to provide a luminous necktie which attracts peoples attention by increasing discrimination of the necktie at night and gives a sense of beauty to those who see it. 
     To accomplish the above objects, this invention provides a luminous necktie comprising a plurality of light-emitting-diodes installed in order to be exposed to the front part of the necktie; an oscillation circuit portion for flashing said light-emitting-diodes; and a switch giving trigger signals to the trigger signal input end of said oscillation circuit portion. 
    
    
     BRIEF DESCRIPTIONS OF THE DRAWINGS 
     FIG. 1 is a circuit view showing the construction of the luminous necktie according to the present invention. 
     FIG. 2 is a front view showing the state of the luminous necktie, according to the present invention, worn in a shirt. 
     FIG. 3 is a rear squint view showing the luminous necktie according to the present invention. 
     FIG. 4 is a sectional view showing the state of light-emitting-diodes installed in the luminous necktie according to the present invention. 
     FIG. 5 is a separated squint view showing an embodiment of the luminous necktie, according to the present invention, constituted in a separable type by using a case and a connector. 
     FIG. 6 is a rear view showing the installation place of the connector in case of the luminous necktie, according to the present invention, constituted in a separable type by using a case. 
     FIG. 7 is a front view showing the state that the connector of the luminous necktie according to the present invention and the cable drawn out from the case are joint to each other. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring now to the drawings, the embodiments according to this invention are described in detail. 
     As shown in FIG. 1 to FIG. 4, this invention comprises a large number of light-emitting-diodes (LED 1 , LED 2 , ˜, LEDn) installed such that the light-emitting-diodes (LED 1 , LED 2 , , LEDn) are exposed to the front part of a necktie  30 ; an oscillation circuit portion  40  for flashing said light-emitting-diodes (LED 1 , LED 2 , ˜, LEDn); and a switch (SW) giving trigger signals to the trigger signal input end (T) of said oscillation circuit  40 . signal input end (T) of said oscillation circuit  40 . 
     Said switch (SW) is set at the rear of the large width portion  34  of said necktie  30 . 
     As shown in FIG. 5 to FIG. 7, this invention comprises a battery receiving chamber  62  receiving a battery (BT); a wafer receiving chamber  64  receiving a printed circuit wafer  50 ; a case  60  having a forceps  69  which is inserted in the front portion of the shirt  70 ; a cable  66  installed at one side of the case  60 ; a plug  82  installed at the end of said cable  66  in order to be joined to the connector  80  (forming joined connector/plug  88 ) which is connected to the light-emitting-diodes (LED 1 , LED 2 , ˜, LEDn); and a cover  68  covering said battery receiving chamber  62  and said wafer receiving chamber  64 . 
     Said connector  80  can be installed at the rear of the necktie  30 , especially at the inserting portion  32  in which the small width portion of the necktie is inserted. 
     Said forceps  69  and said case  60 , as shown in FIG. 5, are bound by a hinge pin  90  and the forceps  69  is constituted to have always a biting force by a torsion spring  92 . 
     Also, handles  94  and  95  are formed at one side of the forceps  69  and the case  60  respectively in order to be convenient for use when taking by fingers of a user. And they can be inserted in the space of the portion in which the buttons  75  of the shirt  70  are positioned. 
     The leading pins of said light-emitting-diodes(LED 1 , LED 2 , ˜, LEDn) are bent in the opposite direction, placed inside the cloth of the necktie  30  as shown in FIG.  4  and fixed thereto by an adhesive and so forth. The light-emitting-diodes(LED 1 , LED 2 , ˜, LEDn) are formed in the holes  38  of the necktie  30  so as to be exposed to the front part of the necktie  30 . 
     On one hand, said light-emitting-diodes(LED 1 , LED 2 , ˜, LEDn) can be made in several colors to emit various color lights. 
     In drawings, signs R 11 , R 12 , R 1 n, which are not explained, are current limit resistances for limiting the current flowing to said light-emitting-diodes (LED 1 , LED 2 , ˜, LEDn) below rated current, R 1  is a pull-up resistance for impressing high electric potential to the trigger signal input end (T) of the oscillation circuit portion  40  when the joint point of said switch (SW) is open; VR is a variable resistance for varying the oscillation cycle of said oscillation circuit portion  40 ; and  100  is a printed circuit wafer. 
     Hereinafter, the effect of the present invention will be described in more detail referring to the attached drawings. 
     First of all, as shown in FIG. 1 to FIG. 4, when the joint point is closed by managing the switch (SW) installed at the rear of the large width portion  34  of the necktie  30 , a low electrical potential is impressed through the trigger signal input end (T) of the oscillation circuit portion  40 , at the same time, a pulse wave is outputed from a large number of the output ends comprised at the oscillation circuit portion  40 . 
     At this time, at the positive edge of the pulse wave outputted from the output end of the oscillation circuit portion  40 , a driving current flows, passing through current limit resistances (R 11 , R 12 , ˜, R 1 n) which are connected to the output end of the oscillation circuit portion  40 , to each of light-emitting-diodes (LED 1 , LED 2 , ˜, LEDn) are put out. As a result, the light-emitting-diodes (LED 1 , LED 2 , ˜, LEDn) flash periodically. 
     That is, the light emitted from the light-emitting-diodes (LED 1 , LED 2 , ˜, LEDn) are radiated outside from the holes formed in the necktie  30  so that people in the front of the necktie can see the diodes and emitted light. 
     During the above process, if the oscillation cycle of the pulse wave outputed from the oscillation circuit portion  40  is varied by using the variable resistance (VR), the flashing cycles of the light-emitting-diodes (LED 1 , LED 2 , ˜, LEDn) are varied. 
     On the other hand, as shown in FIG. 5 to FIG. 7, in the case where the connector  80  and plug  82  are attachable to or removable from each other, when plug  82  is separated from connector  80 , only the light-emitting-diodes (LED 1 , LED 2 , ˜, LEDn) and the lead wires remain so that the necktie  30  can be washed with water. 
     And, in case of taking the handles  94  and  95  positioned at the forceps  69  and the case  60 , the torsion spring  92  is twisted to open the space between the forceps  69  and the case  60 , at this time, the handle  94  is inserted in the space positioned at the shirt button, and then, by removing the force which is pushing the handles  94  and  95  with fingers, the elastic restoring force of the torsion spring  92  fixes the forceps  69  and the case  60  to the shirt  70 . 
     At this time, when the switch (SW) is closed after the joining of connector  80  and plug  82  (forming joined connector/plug  88 ), the pulse wave is outputted through the output end of oscillation circuit portion  40  to light-emitting-diodes (LED 1 , LED 2 , ˜, LEDn), and then these light-emitting-diodes (LED 1 , LED 2 , ˜, LEDn) flash. 
     Also, when a battery is needed to be exchanged, the battery exchange comprises the steps of opening the cover  68  bound to the case  60 ; removing the discharged battery (BT) in the battery receiving chamber  62 ; inserting again a new battery (BT); and closing the cover  68 . 
     As described above, the present invention comprises flashing light-emitting-diodes in a necktie to attract people&#39;s attention as well as to raise the discrimination, especially in the night. Also, the light-emitting-diodes are in harmony with designs formed in the surface of the necktie to give a sense of beauty to who sees the necktie.