Patent Publication Number: US-6698642-B2

Title: Wire retainer casing

Description:
BACKGROUND OF THE INVENTION 
     (a) Field of the Invention 
     The present invention is related to a wire retainer casing, and more particularly, to a wire retainer that fit staplers of different specifications. 
     (b) Description of the Prior Art 
     As to the construction of regular wire (such as electric wire, information wire, etc), since the length and flexibility of the wire itself cannot be effectively pressed against or fixed on an attaching plane, therefore the “n”-shaped staple is generally used to fix the wire in position. With the consideration of the stapling speed for the development of staplers and the effective positioning of stables, the stapler generally has a “n”-shape roller guide corresponsive to the staple exit protruded from the bottom of the stapler, such that the wire can be fixed into position by using the opening at the center of the roller guide. 
     Since the diameter and shape of different wires are not the same, therefore the safety and stability of the stapler are taken into consideration, and the general staple can overcome the problem of different specifications. On the contrary, the stapler itself only has an opening of one size. Therefore if the diameter of the wire is smaller than the opening on the roller guide, the stapler will lose the positioning function; if the diameter of the wire is larger than the opening on the roller guide, the protruded post on both side of the roller guide cannot press against the construction plane causing the instable condition and inconvenience during the stapling operation. 
     In summation of the above description, we can understand that since the design of current stapler is not perfect, and unable to fit the wires of different specifications, it may impact the economic benefit. In addition, the frequent switching of staplers also affects the convenience of the operation, therefore it cannot really solve the problem, and further improvement is needed. 
     SUMMARY OF THE INVENTION 
     The present invention is related to a wire retainer casing, and more particularly, to a wire retainer that fit staplers of different specifications. 
     The primary purpose of the present invention is to provide a wire retainer casing for the stapler that can fit wires of different sizes and specifications. 
     The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts. 
    
    
     Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example. 
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a schematic diagram of the stapler according to the present invention, demonstrating the configuration of each component and their corresponsive relations. 
     FIG. 2A is a reference schematic diagram showing the front view of the present invention when it is in use. 
     FIG. 2B is a cross-sectional side view of FIG.  2 A. 
     FIG. 3A is another reference schematic diagram showing the front view of the present invention. 
     FIG. 3B is another cross-sectional side view of FIG.  3 A. 
     FIG. 4A is another reference schematic diagram showing the front view of the present invention. 
     FIG. 4B is a cross-sectional side view of FIG.  4 A. 
     FIG. 5 is a planar schematic diagram of each of the wire retainer of the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The following descriptions are of exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims. 
     To attain the foregoing purpose, the present invention can be implemented by the following technological means: the stapler comprising a groove bracket being disposed at the bottom edge between two side casings for accommodating the staples; a staple roller assembly being disposed on a groove bracket for pushing the staple forward; a staple plate being disposed at the front edge of the side casing for shooting the staple; characterized in that: an embedded groove, being disposed at the front edge of the side casing of the stapler, for switching the wire retainer, and a wire opening being disposed at the center of the bottom of the wire retainer, and the wire opening of the wire retainer fits the shape and specification according to the shape and specification of the wire, and the height from the inner top surface of the wire opening of the wire retainer to the top of different wire retainers is the same; thereby, the user can switch wire retainer of different specifications according to the actual needs, and the present invention can successfully press against the working surface in a stable condition and is applicable for the wire of different diameters and specifications without switching to different staplers. The present invention further improves the current existing stapler that can only fit one kind of wire and is very inconvenient in order to attain the purpose of improving the convenience. 
     The present invention relates to a wire retainer casing that can fit the wires of different sizes and specifications. In FIGS. 1,  2 A and  2 B, the stapler mainly comprises two corresponsive side casings  10 , wherein a groove bracket  11  disposed at the bottom of the side casing  10 ; a staple roller assembly  12  disposed on the groove bracket for pushing the stables forward, and a staple groove  13  disposed at the front edge of the side casing  10  and vertically to the groove bracket  11 ; a staple pate  14  disposed in the staple groove  13  for shooting a staple  15 . The structure and principle of movement of the foregoing stapler are the same as those in the prior art, and not the characteristics of the present invention, thus will not be described in details here. 
     The characteristics of the present invention will be described together with FIGS. 1,  2 A and  2 B. The stapler according to the present invention has a switching wire retainer  20  at the front edge of the side casing for holding wire  40  of different specifications by switching to different wire retainers. 
     The detailed structure of the present invention comprises a wire retainer  20  in the form of a plate, and such wire retainer  20 , has a wire retaining opening  21  at its bottom facing downward, and as shown in FIG. 5, the wire retaining opening  21  of the wire retainer  20  extends downward. In other words, the height from the inner top edge of the wire retaining opening of different specifications to the top of the wire retainer  20  is the same such that it can fit the wire  40  of different specifications. Further, a flange  22  is disposed on each side of the staple plate  14  corresponsive to the wire retainer  20 , and the two flanges  22  can be used to press against both of the sides for stapling and avoid the contact point at the central part of the staple  15  to enhance the smoothness of shooting the staple  15 . 
     Further, an embedded groove  30  for accommodating the wire retainer  20  is disposed at the front end of the staple groove  13  on both side of the casing  10  of the stapler, and a corresponsive retaining groove  35  is disposed at each of the upper and lower section of the embedded groove  30  of the casing  10 , and the two retaining grooves  35  has a latching bracket  25  being extended in curve into the wire retainer  20  in order to secure it into the embedded groove  30  of the casing  10  (screws can also be used to secure the wire retainer  20  from the front of the casing). Such arrangement constitutes a switchable, easy-to-use wire retainer for a stapler. 
     Referring to FIGS. 2A,  2 B,  3 A,  3 B,  4 A and  4 B for the actual usage of the present invention. When the user needs to staple a flat wire  40 , a wire retaining opening with flat shape should be used and the size should match with that of the wire retainer (as shown in FIGS.  2 A and  2 B), and the wire retainer  20  is inserted into the embedded groove  30  of the casing  10  on both sides such that the top of the wire retainer  20  presses against the top edge of the embedded groove  30 , and in the meantime, the latching bracket  25  tightly presses against the wire retainer  20  in order to attain the purpose of fixing the wire retainer  20  into position. The user can secure the staple  15  into position according to the positioning wire on the wire retainer  20  on the stapler. 
     If the wires  40 A,  40 B are of different diameters, the corresponding wire retainer  20 A,  20 B can be selected for use. The user just needs to detach the original wire retainer  20  and switch it with the wire retainers  20 A,  20 B by insert them into the embedded groove  30  of the stapler, and then wires  40 A,  40 B of different specifications can be clipped. There is no problem of position or securing the retainers at all, and the user only need to prepare a stapler for the use in different occasions. 
     It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above. 
     While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.