Abstract:
A wheel lock includes a body, an attaching arm, a movable arm, and a working stick. One end of the attaching arm and the movable arm are disposed on the body. The other end of the attaching arm and the movable arm attach to a wheel. The working stick is slidably disposed on the body. When a user wants to lock the wheel the user simply pulls out the working stick. When a user wants to unlock the wheel the user pushes in the working stick. Therefore, when the user uses the present invention, the user does not need to remove the wheel lock from the steering wheel of the vehicle.

Description:
BACKGROUNG OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to a wheel lock and in particular to a wheel lock that does not be removed whenever the user wishes to lock or unlock a wheel. 
         [0003]    2. Description of Related Art 
         [0004]    Besides a door lock or an active lock of a car, most people will install more car locks for preventing their car from being stolen. In general, car locks are classified into several types, such as a gear lock or a steering wheel lock. A gear lock is small. However, the gear lock is installed on the gear. When a thief attempts to remove a gear lock, he or she will not be seen by others. Therefore, the chance of the vehicle not being stolen is not decreased significantly. Moreover, a gear lock needs to be installed in a car factory, and the body of the car will be pierced a hole. 
         [0005]    A steering wheel lock is attached on the wheel of the car. One end of the steering wheel lock attaches to the body of the car. Because the steering wheel lock is installed in the front of the car, a thief can clearly be seen by other people walking past the vehicle as they attempt to remove the steering wheel lock. However, the steering wheel lock is big and heavy. Furthermore, it must be installed and removed every time when the wheel needs to be locked or unlocked. Therefore, a steering wheel lock often remains unused by car owners who can&#39;t be bothered to it every time they leave their vehicle. 
       SUMMARY OF THE INVENTION 
       [0006]    It is an object of the present invention to provide a wheel lock that locks on the wheel. The wheel lock does not need to be taken off when the wheel is unlocked. When a user wants to lock the wheel the user just has to pull out the working stick. When a user wants to unlock the wheel the user just has to insert the working stick. Therefore, the use of the wheel lock is very convenient. 
         [0007]    The other object of the present invention is to provide a lock structure used for the wheel lock, or any other lock. 
         [0008]    To achieve the above object, the present invention provides a lock structure, comprising: a body having a curved track and a concave; a guiding lug having a shaft pivoted on one end of the concave, one surface of the guiding lug having a first guiding channel corresponding to the curving track, the opposite surface of the guiding lug having a second guiding channel; a movable arm having a post corresponding to the second guiding channel; and a back lock disposed on the body, the back lock having a bolt; wherein the bolt pushes the shaft to the other end of the concave, the guiding lug is attached on the curving track and the movable arm is attached. 
         [0009]    To achieve the above object, the present invention provides a wheel lock, comprising: a body having a hollow pipe; a working stick slidably disposed on the hollow pipe; an attaching arm disposed on the body; a front lock disposed on the body through the attaching arm for attaching the working stick; a movable arm slidably disposed on the body; a back lock disposed on the body for attaching the movable arm. 
     
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0010]    The present invention can be fully understood from the following detailed description and preferred embodiments with reference to the accompanying drawings, in which: 
           [0011]      FIG. 1  is an exploded view of the lock structure and the wheel lock according to the present invention; 
           [0012]      FIG. 2  is a exploded view of the a guiding lug according to the present invention; 
           [0013]      FIG. 3  is a perspective view of the lock structure and the wheel lock according to the present invention; 
           [0014]      FIG. 4  is a perspective view of the lock structure and the wheel lock according to the present invention; 
           [0015]      FIGS. 5A and 5B  are schematic diagrams of the lock structure according to the present invention; 
           [0016]      FIG. 6  is an assembled view of the wheel lock and the wheel, with the working stick not installed; 
           [0017]      FIG. 7  is an assembled view of the wheel lock and the wheel, in which the wheel is locked; and 
           [0018]      FIG. 8  is an assembled view of the wheel lock and the wheel, in which the wheel is unlocked. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0019]    The following detailed description is of the best presently contemplated modes of applying the invention. This description is not intended to be taken in a limiting sense, but is made merely for the purpose of illustrating general principles of embodiments of the invention. The scope of the invention is best defined by the appended claims. 
         [0020]    Please refer to  FIGS. 1 to 4 , a lock structure and a wheel lock of the present invention includes a body  1 , a guiding lug  2 , an attaching arm  3 , a movable arm  4 , and a working stick  5 . One side of the body  1  has a housing  11 . The housing  11  has a curving track  16  and an elliptic concave  15 . The concave  15  has a rectangle shape formed on a post protruding from the body  1 . The concave  15  has a first part  151  and a second part  152 . The curving track  16  has an arc-shaped track protruding from the body  1 . The position of the first part  151  of the concave  15  is the center of a circle of the curving track  16 . The opposite walls of the housing  11  have two grooves  14  respectively. The other side of the body  1  has a hollow pipe  17  passing through the housing  11 . The body  1  has a front lock room  12  in which a front lock  61  is disposed, and the body  1  has a back lock room  13  in which a back lock  62  is disposed. The position of the opening of the front lock room  12  faces the front of the body  1  is near to the hollow pipe  17 . A hole (not shown) is disposed on the front lock room  12  for a bolt (not shown) of the front lock  61  to pass through to enter the hollow pipe  17 . The opening of the back lock room  13  faces the back of the body  1 . The back lock room  13  has a hole  131  facing towards the concave  15 . The hole  131  is used for the bolt (refer to  FIG. 5A ) to pass through. The concave  15  is formed from a hollow post on the body  1 . 
         [0021]    The guiding lug  2  can be moved within the housing  11  of the body  1 . Please refer to  FIG. 2 , in which a shaft  23  is disposed on the guiding lug  2 . The shaft  23  protrudes from two opposite surfaces of the guiding lug  2 , respectively. The shaft  23  couples to the concave  15  of the body  1  and a concave  34  of the attaching arm  3  respectively. The guiding lug  2  has a first guiding channel  21  and a second guiding groove  22 . The first guiding channel  21  corresponds to the curving track  16 , and the second guiding channel  22  corresponds to a post  42  of the movable arm  4 . An elastic element  18  is disposed in the housing  11  of the body  1  near the concave  15 . The elastic element  18  is used to push the shaft  23  to the first part  151  of the concave  15 . 
         [0022]    Furthermore, the guiding lug  2  has a ball aperture  24  that a ball  25  fits in to. The ball  25  protrudes through the surface facing the body  1  of the guiding lug  2 . Therefore, the guiding lug  2  moves along the surface of the body  1  smoother. 
         [0023]    One end of the attaching arm  3  has a lock hole  32  that corresponds to the front lock room  12  for attaching the front lock  61 . The attaching arm  3  has a third guiding channel  33 . A curving claw  31  is formed on the other end of the attaching arm  3 . The concave  34  of the attaching arm  3  corresponds to the concave  15  of the body  1 . The movable arm  4  is disposed movably on the groove  14  of the body  1  and the third guiding channel  33 . A curving claw  41  is formed on one end of the movable arm  4 . The attaching arm  3  and the movable arm  4  can be curve-shaped. 
         [0024]    The working stick  5  has two round grooves  51 ,  52  on opposite ends thereof respectively. The working stick  5  is inserted into the hollow pipe  17 . The front lock  61  can attach the working stick  5  via at the round grooves  51 ,  52 . 
         [0025]    Please refer to  FIG. 4 , in which the body  1 , the attaching arm  3 , and the movable arm  4  are assembled. The working stick  5  is movably disposed inside the body  1 . Please also refer to  FIG. 6 . When the present invention is being used the curving claw  31  of the attaching arm  3  is attached to an inner side of a wheel Y. When the movable arm  4  is pulled out the curving claw  41  of the movable arm  4  is allowed to attach to the inner side of the wheel Y. Then the back lock  62  is locked. Therefore, the wheel lock of the present invention is attached onto the wheel Y When a user needs to take off the wheel lock of the present invention, the user need to unlock the back lock  62  and push the movable arm  4  toward the attaching arm  3 . The method of moving and attaching the movable arm  4  is described below. 
         [0026]    Please refer to  FIG. 5A , in which a diagram of the movable arm  4  being moved can be seen. The shaft  23  of the guiding lug  2  is disposed within the first part  151  of the concave  15 , and the shaft  23  of the guiding lug  2  is disposed on the center of the circle of the curving track  16 . Moreover, the moving path of the first guiding channel  21  of the guiding lug  2  is attached with the curving track  16 . Therefore, the guiding lug  2  can pivot with shaft  23 , and the first guiding channel  21  moves relative to the curving track  16 . When the movable arm  4  is moving, the post  42  within the second guiding channel  22  pushes the guiding lug  2  around. 
         [0027]    Please refer to  FIG. 5B , in which the movable arm  4  is locked. The bolt  63  of the front lock  62  protrudes from the front lock  62 , and the shaft  23  is pushed to the second part  152  of the concave  15 . Because the position of the shaft  23  is not the center of the circle of the curving track  16 , the moving path of the first guiding channel  21  is not along the curving track  16 . In the other words, the guiding lug  2  is attached on the curving track  16  and cannot be moved. Therefore, when the movable arm  4  is pushed, the post  42  is jammed within the second guiding channel  22  and the movable arm  4  cannot be moved anymore. 
         [0028]    Please refer to  FIG. 6 , which shows the wheel lock of the present invention attached on the wheel Y As can be seen, there are no structures extending out of the wheel. Therefore, a user does not need to take the wheel lock off when driving his or her car. When a user needs to secure the car against theft, the user just puts the working stick  5  into the hollow pipe  17  of the body  1 . And then, referring to  FIG. 7 , the user locks the front lock  61  to insert the bolt of the front lock  61  into the first round groove  51  to attach the working stick  5 . For another method please refer to  FIG. 8 . The user can lock the front lock  61  at the second round groove  52  of the working stick  5 . Therefore, the working stick  5  does not need to be taken off when the user drives. 
         [0029]    In conclusion, the present invention does not need to be taken off regardless of whether the present invention is being used or not. Therefore, that is more convenient for users to use. 
         [0030]    The invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.