Patent Publication Number: US-2010117382-A1

Title: Dual function door lock plate with built-in lock opening(s)

Description:
THE BACKGROUND OF THE INVENTION 
     Some theft can unlock door lock and opens door. Dual function door lock plate with built-in lock opening(s) can be fastened on door jamb and locked with a lock piece to prevent door from being opened outside. 
     THE BRIEF SUMMARY OF THE INVENTION 
     The functions of door lock plate which is fastened on door jamb is to guide door lock pin to slide smoothly into lock hole of door lock plate to close door. Dual function door lock plate with built-in lock opening(s) has additional function of locking door with a lock piece to prevent door from being opened from outside. 
    
    
     
       THE DETAILED DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of various dual function door lock plates with built-in lock opening(s) and lock pieces. 
         FIG. 2  is a perspective view of dual function door-lock plate with built-in lock openings which has been fastened onto door jamb. 
         FIG. 3  is a lateral view of dual function door lock plate with built-in lock openings which has been fastened onto door jamb and door is closed. 
         FIG. 4  is a lateral view of dual function door lock plate with built-in lock openings which has been fastened onto door jamb and is locked with lock piece after door is closed. 
         FIG. 5  is a lateral view of dual function door lock plate with built-in lock openings which has been fastened onto door jamb and is locked with lock piece after door is closed. 
         FIG. 6  is a lateral view of dual function door lock plate with built-in lock openings which has been fastened onto door jamb and is locked with lock pieces after door is closed. 
     
    
    
     THE DETAILED DESCRIPTION OF THE INVENTION 
     Referring now in detail to the drawings numeral  10  of  FIG. 1  is dual function door lock plate with a built-in open lock slot. Now dual function door lock plate with a built-in open lock slot  10  is simplified to be called as dual function door lock plate  10 . Numeral  11  of  FIG. 1  is built-in open lock slot of dual function door lock plate  10 . Numeral  12  of  FIG. 1  is lock hook. Numeral  13  of  FIG. 1  is lock pin hole of dual function door lock plate  10 . Numeral  14  of  FIG. 1  is screw hole of dual function door lock plate  10 . Numeral  15  of  FIG. 1  is dual function door lock plate with a built-in closed lock slot. Now dual function door lock plate with a built-in closed lock slot  15  is simplified to be called as dual function door lock plate  15 . Numeral  16  of  FIG. 1  is built-in closed lock slot of dual function door lock plate  15 . Numeral  17  of  FIG. 1  is lock pin hole of dual function door lock plate  15 . Numeral  18  of  FIG. 1  is screw hole of dual function door lock plate Numeral  19  of  FIGS. 1 ,  2 ,  3 ,  4  and  5  is dual function door lock plate with a built-in open lock slot and a built-in closed lock slot. Now dual function door lock plate with a built-in open lock slot and a built-in closed lock slot  19  is simplified to be called as dual function door lock plate  19 . Numeral  20  of  FIGS. 1 ,  2 ,  3 ,  4  and  5  is built-in open lock slot of dual function door lock plate  19 . Numeral  21  of  FIGS. 1 ,  2 ,  3 ,  4  and  5  is built-in closed lock slot of dual function doorplate  19 . Numeral  22  of  FIGS. 1 and 2  is lock pin hole of dual function door lock plate  19 . Numeral  23  of  FIG. 1  is screw hole of dual function door lock plate  19 . Numeral  24  of  FIG. 2  is door jamb. Numeral  25  of  FIG. 2  is external wall of door jamb  24 . Numeral of  FIGS. 3 ,  4 ,  5  and  6  is internal wall of door jamb  24  of  FIG. 2 . Numeral  27  of  FIG. 2  is screw which has been screwed through screw hole  23  of  FIG. 1  to fasten dual function door lock plate  19  of  FIG. 1  onto door jamb  24 . Numeral  28  of  FIGS. 3 ,  4 ,  5  and  6  is portion of door. Numeral  29  of  FIGS. 3 ,  4 ,  5  and  6  is door knob. Numeral  30  of  FIG. 4  is lock hook  12  of  FIG. 1  which has been inserted into built-in closed lock slot  21  of  FIGS. 1 ,  2 ,  3 ,  4  and  5  to prevent door  28  from being opened after door  28  is closed. Numeral  31  of  FIG. 5  is lock hook  12  of  FIG. 1  which has been inserted into built-in open lock slot  20  of  FIGS. 1 ,  2 ,  3 ,  4  and  5  to prevent door  28  from being opened after door is closed. Numeral  32  of  FIG. 1  is a dual function door lock plate with a built-in closed slot and a built-in hole. Now dual function door lock plate with built-in closed lock slot and a built-in hole  32  is simplified to be called as dual function door lock plate  32 . Numeral  33  of  FIGS. 1 and 6  is a close slot of dual function door lock plate  32 . Numeral  34  of  FIGS. 1 and 6  is hole of dual function door lock plate  32 . Numeral  35  of  FIG. 1  is door lock pin hole of dual function door lock plate  32 . Numeral  36  of  FIG. 1  is screw hole of dual function door lock plate  32 . Numeral  37  of  FIGS. 1 and 6  is lock rod. Lock rod  37  of  FIGS. 1 and 6  can be inserted into hole  34  of  FIGS. 1 and 6  to prevent door  28  from being opened as illustrated in  FIG. 6 . Numeral  38  of  FIGS. 1 and 6  is lock plate. Lock plate  38  of  FIGS. 1 and 6  can be inserted into built-in closed slot  33  of  FIGS. 1 and 6  to prevent door  28  from being opened as illustrated in  FIG. 6 . Numeral  39  of  FIG. 1  is dual function door lock plate with an oblique closed slot. Now dual function door lock plate with an oblique closed slot  39  is simplified to be called as dual function door lock plate  39 . Numeral  40  of  FIG. 1  is oblique closed lock slot of dual function door lock plate  39 . Numeral  41  of  FIG. 1  is door lock pin hole of dual function door lock plate Numeral  42  of  FIG. 1  is screw hole of dual function door lock plate  39 . Numeral  26  of  FIGS. 3 ,  4 ,  5  and  6  is internal wall of door jamb  24  of  FIG. 2 . The inner sides of open lock slot  11 , open lock slot  20 , closed lock slot  16 , closed lock slot  21 , closed lock slot  33 , hole  34  and oblique closed lock slot  40  of  FIGS. 1 ,  2 ,  3 ,  4 ,  5  and  6  are at the same plan of internal wall  26  of  FIGS. 3 ,  4  and  5  of door iamb  24  of  FIG. 2 .