Abstract:
A banknote receiving system used in a ticket vender or the like to verify and collect inserted banknote, in which a press device is provided at one side of the banknote passage, having a springy suspension arm and a nylon impression block at the free end of the springy suspension arm for pressing inserted banknote on a magnetic induction head for positive verification.

Description:
BACKGROUND OF THE INVENTION  
         [0001]    1. Field of the Invention  
           [0002]    The present invention relates to a banknote receiving system for use in a ticket vending machine, money exchange machine, or the like and, more particularly to such a banknote receiving system, which uses a press device with a springy suspension arm to positively secure inserted banknote to the magnetic induction head for verification without interfering the functioning of the magnetic induction head.  
           [0003]    2. Description of the Related Art  
           [0004]    A variety of ticket vending machines have been disclosed, and intensively used in parking lots, stations, public facilities for receiving banknote and vending tickets. A regular ticket vending machine comprises a banknote detector unit adapted to verify the authenticity of banknote inserted therein, and a banknote storage cabinet adapted to receive verified banknote transferred from the banknote receiving and verification unit. According to conventional designs, photoelectric transmitter and receiver modules are commonly used to detect the authenticity of inserted banknote. When banknote inserted through the banknote insertion slot to the transmission mechanism inside the system, the photoelectric transmitter emits light onto inserted banknote, and the photoelectric receiver receives reflected light from inserted banknote and outputs a corresponding induction current for verifying the authenticity of detected banknote. Further, the banknote receiving system has a pivoted metal press member adapted to hold inserted banknote for verification. The metal press member may affect the production of induction current of the photoelectric receiver.  
         SUMMARY OF THE INVENTION  
         [0005]    The present invention has been accomplished to provide a banknote receiving system, which eliminates the aforesaid drawbacks. It is the main object of the present invention to provide a banknote receiving system, which presses inserted banknote on the magnetic induction head for accurate verification. It is another object of the present invention to provide a banknote receiving system, which has a simple structure that achieves banknote verification accurately. According to one aspect of the present invention, the banknote receiving system comprises a housing, the housing having a banknote insertion slot, and a detector unit installed in the housing and adapted to verify the authenticity of banknote being inserted into the banknote insertion slot, wherein the detector unit comprises a first casing, and a second casing defining with the first casing a banknote passage for guiding inserted banknote from the banknote insertion slot to a banknote storage cabinet, the second casing comprising a magnetic induction head suspended at one side of the banknote passage and adapted to verify the authenticity of banknote passing through the banknote passage, the first casing comprising a press device adapted to press banknote passing through the banknote passage on the magnetic induction head, the press device comprising a mounting base, a springy suspension arm projected from the periphery of the mounting base and terminating in a free end, and an impression block located on one side of the free end and partially protruded over an outside wall of the first casing into the banknote passage and adapted to press banknote passing through the banknote passage on the magnetic induction head for verification. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0006]    [0006]FIG. 1 is an exploded view of a banknote receiving system according to the present invention.  
         [0007]    [0007]FIG. 2 is an elevational assembly view of the banknote receiving system according to the present invention.  
         [0008]    [0008]FIG. 3 is an exploded view of the first casing for the detection unit of the banknote receiving system according to the present invention.  
         [0009]    [0009]FIG. 4 is an elevational view of the press device for the detection unit of the banknote receiving system according to the present invention.  
         [0010]    [0010]FIG. 5 is a sectional side view of the detection unit for the banknote receiving system according to the present invention. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0011]    Referring to FIGS.  1 ˜ 4 , a banknote receiving system is shown comprised of a housing  1 , a banknote storage cabinet  2 , and a detector unit formed of a first casing  3  and a second casing  4 . The housing  1  has a face panel  11  defining a banknote insertion slot  111 , a bottom receiving chamber  10  adapted to receive the detector unit. The two vertical side panels  12  of the bottom receiving chamber  10  each have a rear retaining notch  121 . The first casing  3  and the second casing  4  defining a banknote passage for guiding a banknote from the banknote insertion slot  111  of the housing  1  toward the banknote storage cabinet  2 . The detector unit is connected to the banknote insertion slot  111 , and adapted to verify the authenticity of the inserted banknote for enabling the verified banknote to be delivered by the internal transmission mechanism of the housing  1  to the banknote storage cabinet  2 .  
         [0012]    The first casing  3  comprises a press device  32  provided on the inside, and two retaining members  31  bilaterally located on the rear side. When the first casing  3  inserted into the bottom receiving chamber  10  of the housing  1 , the retaining members  31  are respectively forced into engagement with the retaining notches  121  of the housing  1  to secure the first casing  3  firmly to the housing  1 .  
         [0013]    Referring to FIG. 5 and FIGS. 3 and 4 again, the press device  32  comprises a cylindrical base  321 , a locating hole  320  extended through the top and bottom ends of the base  321 , and a springy suspension arm  322  projected from the periphery of the base  321 . An impression block  33  is provided at one side of the free end  323  of the springy suspension arm  322 , and aimed at a magnetic induction head  41  of the second casing  4 . The impression block  33  has a smoothly arched surface portion  331  protruded over the surface of the first casing  3  and forced by the spring power of the springy suspension arm  322  to press the passing banknote on the magnetic induction head  41 . The other side of the free end  323  of the springy suspension arm  322  is provided with a stop rod  324  that limits the amount of vertical movement of the free end  323  of the springy suspension arm  322 , preventing breaking of the suspension arm  322  due to excessive amount of motion relative to the base  321 . The first casing  3  further comprises a mounting shaft  34  fitted into the locating hole  320  of the press device  32  to hold the press device  32  in place, and a receptacle  35  adapted to receive and guide vertical movement of the free end  323  of the springy suspension arm  322  and the impression block  33 .  
         [0014]    When a banknote inserted into the banknote insertion slot  111 , the smoothly arched surface portion  331  of the press block  33  presses the inserted banknote against the magnetic induction head  41 , enabling the magnetic induction head  41  to verify the authenticity of the inserted banknote. The press block  33  is made of nylon or any of a variety of light mass materials. Small push force from the inserted banknote causes the press block  33  to displace vertically.  
         [0015]    As indicated above, the banknote receiving system has advantages as follows:  
         [0016]    1. The springy suspension arm  322  imparts a spring force to the press block  33  to press the inserted banknote on the magnetic induction head  41  for verification positively.  
         [0017]    2. The structure of the press device  32  is simple, saving much manufacturing and installation cost of the banknote receiving system.  
         [0018]    3. Because the press block  33  is made of nylon, it does not interfere with the detection of the magnetic induction head  41 .  
         [0019]    A prototype of banknote receiving system has been constructed with the features of the annexed drawings of FIGS.  1 ˜ 5 . The banknote receiving system 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.