Abstract:
A transmission device for driving a name card to pass over a contact image sensor (CIS) comprises: a loading deck provided with a central recess and a correction slip attached to a bottom face at the front end thereof; a first gear set for driving the loading deck; a second gear set fixed oppositely on the same gear shaft of the first gear set for driving the loading deck; and a motor for driving the first gear set.

Description:
FIELD OF THE INVENTION  
       [0001]     This invention relates to a transmission device for name card scanner provided for driving a name card or the like to pass over a contact image sensor (CIS) for scanning and storing data thereof.  
       BACKGROUND OF THE INVENTION  
       [0002]     A conventional name card scanner shown in  FIG. 1  comprises a transmission mechanism and a contact image sensor (CIS)  16 . In the transmission mechanism, a motor  10  drives a gear set  12  then a roller  14  to draw a name card over the CIS  16  by taking advantage of a frictional force for the purpose of scanning the name card.  
         [0003]     Because of the considerable thickness of the roller  14 , the name card scanner is somewhat awkward and bulky in modeling, therefore, this invention is brewed to remove the roller to minimize the volume of the scanner accordingly so as to improve the portability thereof.  
       SUMMARY OF THE INVENTION  
       [0004]     The primary object of this invention is to provide a transmission device for name card scanner by removing a roller in a conventional scanner to minimize the thickness and volume thereof to improve its portability  
         [0005]     In order to realize abovesaid object, the transmission device for driving a name card to pass over a contact image sensor (CIS) comprises: a loading deck provided with a central recess and a correction slip attached to a bottom face at the front end thereof; a first gear set for driving the loading deck; a second gear set fixed oppositely on the same gear shaft of the first gear set for driving the loading deck; and a motor for driving the first gear set.  
         [0006]     For more detailed information regarding advantages or features of this invention, at least an example of preferred embodiment will be elucidated below with reference to the annexed drawings. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0007]     The related drawings in connection with the detailed description of this invention to be made later are described briefly as follows, in which:  
         [0008]      FIG. 1  shows a partial structure of a conventional name card scanner:  
         [0009]      FIG. 2A  is a schematic view of a first embodiment of this invention;  
         [0010]      FIG. 2B  is a lateral view of this invention shown in  FIG. 2A ;  
         [0011]      FIG. 3A  is a schematic view of a second embodiment of this invention;  
         [0012]      FIG. 3B  is a lateral view of this invention shown in  FIG. 3A ;  
         [0013]      FIG. 4  is a schematic view of a third embodiment of this invention;  
         [0014]      FIG. 5  is a schematic view of a fourth embodiment of this invention; and  
         [0015]      FIG. 6  is an exploded view of a fifth embodiment of this invention. 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0016]     As illustrated in an schematic view of a first embodiment of this invention shown in  FIG. 2A  and a lateral view thereof shown in  FIG. 2B , a recess  21  for loading a name card is formed in a loading deck  20  centrally and an adhesive plastic film (not shown) is laid on the recess  21  for eliminating image distortion in the event of a folded name card. The loading deck  20  is about 1 mm thick while the recess  21  is about 0.2 mm deep such that a name card is permitted to be attached as closely as possible to a contact image sensor (CIS)  22  having a view depth of 1 mm only Moreover, the width of the CIS  22  is exactly the same with that of the recess  21 , and a correction slip  23  is adhered to a bottom face of the front end of the loading deck  20 .  
         [0017]     A first gear set  25  and a paired second gear set  26  are set by a bracket (not shown), and a motor  24  is implemented to drive the first gear set  25 , then the second gear set  26 . The teeth  25   a ,  26   a  of the first and the second gear set  25 ,  26  are engaged with a plurality of slots  27  formed on both sides of the loading deck  20  respectively to thereby drive the loading deck  20  to pass over the CIS sensor  22  to have a name card scanned when the motor  24  drives the first and the second gear set  25 ,  26 .  
         [0018]     In an schematic view of a second embodiment of this invention shown in  FIG. 3A  and a lateral view thereof shown in  FIG. 3B , a recess  31  for loading a name card is formed in a loading deck  30  centrally and an adhesive plastic film (not shown) is laid on the recess  31  for eliminating image distortion in the case of a folded name card. The loading deck  30  is about 1 mm thick while the recess  31  is about 0.2 mm deep such that a name card is permitted to be attached as closely as possible to a contact image sensor (CIS)  32  having a view depth of 1 mm only. Moreover, the width of the CIS  32  is exactly the same with that of the recess  31 , and a correction slip  33  is adhered to a bottom face of the front end of the loading deck  30 .  
         [0019]     A first gear set  35  and a paired second gear set  36  are set by a bracket (not shown), and a motor  34  is implemented to drive the first gear set  35 , then the second gear set  36 . The teeth  35   a ,  36   a  of the first and the second gear set  35 ,  36  are engaged with a gear bar  37 ,  38  formed under two opposite lateral sides of the loading deck  30  respectively, which, the loading deck  30  is thereby driven to pass over the CIS sensor  32  to have a name card scanned when the motor  34  drives the first and the second gear set  35 ,  36 .  
         [0020]     In an schematic view of a third embodiment of this invention shown in  FIG. 4 , a recess  41  for loading a name card is formed in a loading deck  40  centrally and an adhesive plastic film (not shown) is laid on the recess  41  for eliminating image distortion in the event of a folded name card. The loading deck  40  is about 1 mm thick while the recess  41  is about 0.2 mm deep such that a name card is permitted to be attached as closely as possible to a contact image sensor (CIS)  42  having a view depth of 1 mm only. Moreover, the width of the CIS  42  is exactly the same with that of the recess  41 , and a correction slip  43  is adhered to a bottom face of the front end of the loading deck  40 .  
         [0021]     A first gear set  45  set by a bracket (not shown) is engaged by taking advantage of its teeth  45   a  with a plurality of slots  47  formed on one side of the loading deck  40 . When a motor  44  drives the first gear set  45 , the loading deck  40  is driven to pass over the CIS sensor  42  to have a name card scanned. A wheel  46  located on another side opposite to the slots  47  runs along a rail  48  opened downward for supporting the loading deck  40 .  
         [0022]     In an schematic view of a fourth embodiment of this invention shown in  FIG. 5 , a recess  51  for loading a name card is formed in a loading deck  50  centrally and an adhesive plastic film (not shown) is laid on the recess  51  for eliminating image distortion in the event of a folded name card. The loading deck  50  is about 1 mm thick while the recess  51  is about 0.2 mm deep such that a name card is permitted to be attached as closely as possible to a contact image sensor (CIS)  52  having a view depth of 1 mm only. Moreover, the width of the CIS  52  is exactly the same with that of the recess  51 , and a correction slip  53  is adhered to a bottom face of the front end of the loading deck  50 .  
         [0023]     A first gear set  55  set by a bracket (not shown) is engaged by taking advantage of its teeth  55   a  with a gear bar  57  formed below one side of the loading deck  50 . When a motor  54  drives the first gear set  55 , the loading deck  50  is driven to pass over the CIS sensor  52  to have a name card scanned. A wheel  56  located on another side opposite to the gear bar  57  runs along a rail  58  opened downward for supporting the loading deck  50 .  
         [0024]     In  FIG. 6 —an exploded view of a fifth embodiment of this invention—a recess  61  for loading a name card is formed in a loading deck  60  centrally and an adhesive plastic film (not shown) is laid on the recess  61  for eliminating image distortion in the event of a folded name card. The loading deck  60  is about 1 mm thick while the recess  61  is about 0.2 mm deep such that a name card is permitted to be attached as closely as possible to a contact image sensor (CIS)  62  having a view depth of 1 mm only. Moreover, the width of the CIS  62  is exactly the same with that of the recess  61 , and a correction slip  63  is adhered to a bottom face of the front end of the loading deck  60 .  
         [0025]     A first and a second bevel gear set  65 ,  66  are set by a bracket (not shown). A motor  64  is provided to drive the first and the second bevel gear set  65 ,  66  by taking advantage of a stud  69 . The teeth  65   a ,  66   a  of respective bevel gear sets  65 ,  66  are engaged with a bevel gear bar  67 ,  68  positioned under each side of the loading deck  60  so that the motor  64  drives the first and the second bevel gear set  65 ,  66  to have the loading deck  60  driven to pass over the CIS  62  and have a name card scanned.  
         [0026]     In the above described, at least one preferred embodiment has been described in detail with reference to the drawings annexed, and it is apparent that numerous variations or modifications may be made without departing from the true spirit and scope thereof, as set forth in the claims below.