Abstract:
A scissors assembly includes a main body, a jaw plate, and an angle adjusting base. Thus, the scissors assembly has a simplified construction and can be positioned efficiently. In addition, the scissors assembly can adjust the cutting angle easily and conveniently. Further, the scissors assembly is operated easily and conveniently.

Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention relates to a scissors assembly, and more particularly to a scissors assembly that can adjust the cutting angle easily and conveniently. 
   2. Description of the Related Art 
   A conventional scissors assembly in accordance with the prior art comprises a main body, a jaw plate, an angle adjusting base, a plurality of riveting members and a plurality of locking members. The main body includes a support arm and a cutting blade pivotally mounted on the support arm. The jaw plate is secured on the support arm of the main body. The angle adjusting base is pivotally mounted on the jaw plate, so as to adjust the relative angle between the angle adjusting base and the cutting blade of the main body. Thus, the conventional scissors assembly can be used to cut a sheet shaped material, such as a wooden plate, with a determined angle by adjusting the relative angle between the angle adjusting base and the cutting blade of the main body. 
   However, the conventional scissors assembly has a complicated structure, thereby causing inconvenience and increasing costs in fabrication. In addition, after adjustment of the angle adjusting base, the angle adjusting base partially covers the angle scale lines on the jaw plate, so that the user easily misunderstands the angle, thereby causing inconvenience in operation. Further, the angle adjusting base cannot be adjusted and positioned on the jaw plate easily and conveniently. 
   SUMMARY OF THE INVENTION 
   The present invention mitigates and/or obviates the disadvantage of the conventional scissors assembly. 
   The primary objective of the present invention is to provide a scissors assembly that can be positioned efficiently. 
   Another objective of the present invention is to provide a scissors assembly that has a simplified construction. 
   A further objective of the present invention is to provide a scissors assembly that can adjust the cutting angle easily and conveniently. 
   A further objective of the present invention is to provide a scissors assembly that is operated easily and conveniently. 
   In accordance with the present invention, there is provided a scissors assembly, comprising a main body, a jaw plate, and an angle adjusting base, wherein: 
   the main body includes a support arm and a cutting blade pivotally mounted on the support arm; 
   the jaw plate is secured on the support arm of the main body and has a periphery formed with a plurality of angle scale lines and a plurality of positioning holes each aligning with a respective one of the angle scale lines; and 
   the angle adjusting base is pivotally mounted on the jaw plate and has two sides each provided with an alignment plate aligning with either one of the angle scale lines, the alignment plate of each of the two sides of the angle adjusting base is formed with a screw bore for screwing a hollow adjusting screw containing an elastic member and a positioning ball, the positioning ball is positioned in either one of the positioning holes of the jaw plate. 
   Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is an exploded perspective view of a scissors assembly in accordance with the preferred embodiment of the present invention; 
       FIG. 2  is a partially exploded, perspective assembly view of the scissors assembly in accordance with the preferred embodiment of the present invention; 
       FIG. 3  is a perspective assembly view of the scissors assembly in accordance with the preferred embodiment of the present invention; 
       FIG. 4  is a cross-sectional view of the scissors assembly as shown in  FIG. 3 ; 
       FIG. 5  is a schematic top plan operational view of the scissors assembly taken as shown in  FIG. 3 ; 
       FIG. 6  is a perspective assembly view of the scissors assembly in accordance with another embodiment of the present invention; and 
       FIG. 7  is an exploded perspective assembly view of the scissors assembly in accordance with another embodiment of the present invention. 
   

   DETAILED DESCRIPTION OF THE INVENTION 
   Referring to the drawings and initially to  FIGS. 1–3 , a scissors assembly in accordance with the preferred embodiment of the present invention comprises a main body  10 , a jaw plate  20 , and an angle adjusting base  30 . 
   The main body  10  includes a support arm  11  and a cutting blade  12  pivotally mounted on the support arm  11 . 
   The jaw plate  20  is secured on the support arm  11  of the main body  10 . The jaw plate  20  is formed with an insertion recess  21  for insertion of one end of the main body  10 , so that the jaw plate  20  is mounted between the support arm  11  of the main body  10  and the cutting blade  12  of the main body  10 . The jaw plate  20  has a top face having a center formed with a recessed center line  22  aligning with the cutting blade  12  of the main body  10 , so that the cutting blade  12  of the main body  10  can be inserted into the center line  22  of the jaw plate  20  to cut the material conveniently. The top face of the jaw plate  20  has a plurality of angle scale lines each formed with an angle number  230 . The top face of the jaw plate  20  is formed with a plurality of positioning holes  24  each aligning with a respective one of the angle scale lines  23 . The distance between each of the positioning holes  24  and the respective angle scale line  23  is arranged such that after the angle adjusting base  30  is positioned, each of the angle scale lines  23  and the respective angle number  230  are exposed outward from the angle adjusting base  30 , thereby facilitating the user&#39;s identification. 
   The angle adjusting base  30  is pivotally mounted on the jaw plate  20 , so as to adjust the relative angle between the angle adjusting base  30  and the cutting blade  12  of the main body  10 . Preferably, the angle adjusting base  30  is pivotally mounted on the center of the jaw plate  20 . The angle adjusting base  30  has two sides each provided with an alignment plate  31  aligning with either one of the angle scale lines  23 . The alignment plates  31  of the two sides of the angle adjusting base  30  are in line with each other. The alignment plate  31  of each of the two sides of the angle adjusting base  30  is formed with a screw bore  32  for screwing a hollow adjusting screw  35  which is formed with a chamber  350  (see  FIG. 4 ) for receiving an elastic member  34  and a positioning ball  33 . 
   As shown in  FIG. 4 , the elastic member  34  is urged between the positioning ball  33  and a wall of the chamber  350  of the adjusting screw  35 , and the positioning ball  33  is positioned in either one of the positioning holes  24  of the jaw plate  20  by the urging action of the elastic member  34 . 
   The distance between the screw bore  32  and an outer edge of the alignment plate  31  of the angle adjusting base  30  is arranged such that after the positioning ball  33  is positioned in either one of the positioning holes  24  of the jaw plate  20 , each of the angle scale lines  23  and the respective angle number  230  are exposed outward from the outer edge of the alignment plate  31  of the angle adjusting base  30  as shown in  FIG. 5 , thereby facilitating the user&#39;s identification. 
   In practice, when the user needs to cut out the angle of a sheet shaped material, the adjusting screw  35  is slightly unscrewed from the screw bore  32  of the angle adjusting base  30 , so that the positioning ball  33  is unlocked from either one of the positioning holes  24  of the jaw plate  20 . Thus, the angle adjusting base  30  can be rotated on the jaw plate  20  freely, so that the angle adjusting base  30  can be moved to the required angle rapidly. Then, the adjusting screw  35  is screwed into the screw bore  32  of the angle adjusting base  30 , so that the positioning ball  33  is locked and positioned in either one of the positioning holes  24  of the jaw plate  20  by the urging action of the elastic member  34 , thereby positioning the angle adjusting base  30  on the jaw plate  20  rigidly and stably. 
   Accordingly, the angle adjusting base  30  can be rotated and positioned on the jaw plate  20  rapidly and conveniently, so that the relative angle between the angle adjusting base  30  and the cutting blade  12  of the main body  10  can be adjusted rapidly and conveniently. Thus, the operation is easy and convenient. In addition, the material is rested on the alignment plates  31  of the two sides of the angle adjusting base  30 ,so that the material can be cut accurately without incurring errors, thereby enhancing cutting precision. Further, after the positioning ball  33  is positioned in either one of the positioning holes  24  of the jaw plate  20 , each of the angle scale lines  23  and the respective angle number  230  are exposed outward from the outer edge of the alignment plate  31  of the angle adjusting base  30  as shown in  FIG. 5 , thereby facilitating the user&#39;s identification. Further, after the positioning ball  33  is positioned in either one of the positioning holes  24  of the jaw plate  20 , each of the angle scale lines  23  and the respective angle number  230  are exposed outward from the outer edge of the alignment plate  31  of the angle adjusting base  30  as shown in  FIG. 5 , thereby facilitating the user&#39;s identification. 
   Referring to  FIGS. 6 and 7 , the scissors assembly in accordance with another embodiment of the present invention is shown. Specifically, the alignment plate  31 A of each of the two sides of the angle adjusting base  30 A has a side plate formed with a screw bore  32 A for screwing a hollow adjusting screw  35 A which is formed with a chamber  350 A (see  FIG. 7 ) for receiving an elastic member  34 A and a positioning ball  33 A. The periphery of the jaw plate is formed with the plurality of positioning holes  24  each aligning with a respective one of the angle scale lines  23 , with the positioning ball  33 A being positionable in one of the positioning holes  24  of the jaw plate  20  by the urging action of the elastic member  34 A. 
   Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.