Patent Publication Number: US-8978522-B2

Title: Wrench

Description:
RELATED APPLICATIONS 
     The application claims priority to Taiwan Application Serial Number 101113280, filed Apr. 13, 2012, which is herein incorporated by reference. 
     BACKGROUND 
     1. Technical Field 
     The present invention relates to a hand tool. More particularly, the present invention relates to a wrench with two drivers at two ends thereof. 
     2. Description of Related Art 
     A conventional wrench has two drivers at two ends thereof for driving different components. However, the conventional wrench has one type of teeth but located on the driver with different angles for cooperating with different locking positions and device. Although one drivers of the conventional wrench can drive one tooth-type component with only one angle, it exists difficult on adjusting the handling posture of a user when on different locking position or other devices. Furthermore, the wrench also cannot lock the components at different positions. 
     SUMMARY 
     According to one aspect of the present disclosure, a wrench includes a handle, a first driver, and a second driver. The first driver is integrally connected to an end of the handle, and an opening end of the first driver is horizontally connected with the handle. The second driver being hollow tube-shaped is integrally connected to the other end of the handle, and an opening end of the second driver is horizontally connected to the handle. The second driver has a plurality of first teeth and a plurality of second teeth, and the first teeth and the second teeth are located on an inner wail of the second driver. An angle α is formed between the first teeth and the opening end of the second driver, and an angle β is formed between the second teeth and the other opening end of the second driver, wherein the angle α and the angle β are both from 75 degrees to 105 degrees. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present disclosure can be more fully understood by reading the following detailed description of the embodiment, with reference made to the accompanying drawings as follows: 
         FIG. 1  is a three dimensional view of a wrench according to one embodiment of the present disclosure; 
         FIG. 2  is a front view of the wrench of  FIG. 1 ; 
         FIG. 3  is a side view of the wrench of  FIG. 1 ; and 
         FIG. 4  is a cross-section view of the second driver of the wrench of  FIG. 1 . 
     
    
    
     DETAILED DESCRIPTION 
       FIG. 1  is a three dimensional view of a wrench  100  according to one embodiment of the present disclosure. A wrench  100  includes a handle  110 , a first driver  120 , and a second driver  130 . The first driver  120  and the second driver  130  are integrally connected to two ends of the handle  110 . 
       FIG. 2  is a front view of the wrench  100  of  FIG. 1 . A plurality of embossments  111  are disposed at least one end of the handle  110  which is connected to the first driver  120  or the second driver  130 . In  FIG. 2 , the embossments  111  are disposed at two ends of the handle  110 , so that an anti-slip effect is obtained for performing a smoother operation. 
       FIG. 3  is a side view of the wrench  100  of  FIG. 1 . In  FIG. 3 , the first driver  120  includes two opening ends  121 ,  122 ; and the second driver  130  includes two opening end  131 ,  132 . The opening end  121  of the first driver  120  and the opening end  131  of the second driver  130  are horizontally connected with the handle  110 . Therefore, the wrench  100  can operate more closely to the surface of a device when being operated at the edge of the device. Thus, the first driver  120  and the second driver  130  can be engaged more tightly to a component of the device for increasing the smoothness of operation. 
     Furthermore, an angle φ formed between the opening end  122  of the first driver  120  and the handle  110  is from 0 degrees to 25 degrees. Compared to the horizontal connection between the opening end  121  and the handle  110 , the angle φ is helpful for operating on the device which has an un-uniform surface or more components, and is favorable for adjusting the posture of handling wrench, and thereby increasing the smoothness of user&#39;s operation. 
     An angle θ formed between the opening end  132  of the second driver  130  and the handle  110  is from 0 degrees to 25 degrees. As the foregoing statement, the purpose of the angle θ is to increase the smoothness of user&#39;s operation. 
       FIG. 4  is a cross-section view of the second driver  130  of the wrench  100  of  FIG. 1 . In  FIG. 4 , the second driver  130  is hollow tube-shaped and has a plurality of first teeth  133  and a plurality of second teeth  134  located on the inner wall thereof. An angle α is formed between the first teeth  133  and the opening end  131 , and an angle β is formed between the second teeth  134  and the opening end  132 . The angle α and the angle β are both from 75 degrees to 150 degrees. Therefore, the opening end with different incline angles can be varied with different positions of the device, and thereby increasing the smoothness of operation. 
     In the embodiment of  FIG. 4 , the angle α and the angle β are both 90 degrees. Therefore, the first teeth  133  or the second teeth  134  can be engaged with the device more tightly for increasing the stability of operation. 
     According to the above statement, the present disclosure has advantages as follows: 
     1. The angles are formed between the handle  110  and the first driver  120 , and between the handle  110  and the second driver  130 . Therefore, it is favorable for adjusting the posture of the users, and thereby producing a strength-saving effect during operation. 
     2. The angles are formed between the teeth  133 ,  134  and the opening end  131 ,  132 . Therefore, it is favorable for being applied to a driving component at different positions for increasing the application range. 
     3. Two ends of the handle  110  are horizontally connected to the opening end  121  of the first driver  120  and the opening end  131  of the second driver  130 , and thereby increasing the smoothness of operation. 
     4. The embossments  111  can be disposed on two ends of the handle  110 , and thereby obtaining the anti-slip effect for increasing the stability of operation. 
     It will be apparent to those skilled in the art that various modifications and variations can be made to the structure of the present invention without departing from the scope or spirit of the invention. In view of the foregoing, it is intended that the present invention cover modifications and variations of this invention provided they fall within the scope of the following claims.