Abstract:
A riveting tool with a rivet rod expelling function is disclosed to include a tool body having a base and a grip extended from the base. The base has a rivet passage defined therein and an opening located on the peripheral wall thereof in communication with the passage and adjacent to the grip for quick discharge of each broken rivet rod during the riveting operation.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to riveting tools and more particularly to a riveting tool with a rivet rod expelling function. 
         [0003]    2. Description of the Related Art 
         [0004]    When operating a riveting tool, a rivet is inserted into the rivet inlet of the riveting tool, and then the internal riveting mechanism of the riveting tool is operated to pull apart the inserted rivet, forcing the rivet head to fasten workpieces. When the rivet rod is pulled apart from the rivet had, it is left inside the rivet inlet. At this time, the user must turn the riveting tool to bias the rivet hole downwards for enabling the broken rivet rod to fall or to be shaken out of the rivet inlet so that a next riveting operation can be performed. 
         [0005]    There is known another design of riveting tool, which has an internal center hole extending through the tool body. The broken rivet rod can be guided by the internal center hole out of the rear side of the tool body. However, an external force must be applied to the riveting tool to force the broken rivet rod to move toward the rear side of the tool body after each riveting operation. Further, this structure of riveting tool has the disadvantages of complicated structure and short working life. Further, when using this structure of riveting tool, the user may have to lift the rivet inlet and shake the tool body for causing the broken rivet rod to fall through the internal center hole to the outside of the tool body. 
         [0006]    As stated above, the conventional riveting tools use an inconvenient method to expel broken rivet rods, interrupting the riveting operation, prolonging the working time and increasing trouble during the use of the riveting tool. 
       SUMMARY OF THE INVENTION 
       [0007]    The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a riveting tool, which facilitates the user to expel each broken rivet rod during the riveting operation. 
         [0008]    To achieve this and other objects of the present invention, a riveting tool comprises a tool body having a base and a grip extended from the base. The base has a rivet passage defined therein and an opening located on the peripheral wall thereof in communication with the passage and adjacent to the grip for quick discharge of each broken rivet rod during the riveting operation. Based on this structural design, the user can expel each broken rivet rod conveniently during the riveting operation. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0009]      FIG. 1  is a schematic structural view of a first embodiment of the present invention, showing an opening located on the peripheral wall of the base of the riveting tool. 
           [0010]      FIG. 2  is a schematic plain view, partially in section, of the first embodiment of the present invention, showing a rivet inserted into the rivet inlet. 
           [0011]      FIG. 3  is a schematic plain view, partially in section, of the first embodiment of the present invention, showing the riveting mechanism pulled apart the rivet rod of the inserted rivet and moved the broken rivet rod into the passage. 
           [0012]      FIG. 4  is a schematic plain view, partially in section, of the first embodiment of the present invention, showing the broken rivet rod moved to the opening. 
           [0013]      FIG. 5  is a schematic structural view of a second embodiment of the present invention, showing a rivet rod collector pivotally connectable to the inside of the opening of the base. 
           [0014]      FIG. 6  is a schematic structural view of the second embodiment of the present invention, showing the rivet rod collector in the second position. 
           [0015]      FIG. 7  is a schematic structural view of a third embodiment of the present invention, showing a rivet rod collector transversely straightly insertable into the opening of the base. 
           [0016]      FIG. 8  is a schematic structural view of a fourth embodiment of the present invention, showing a cover plate movably mounted in the opening of the base. 
           [0017]      FIG. 9  is an elevational view, showing the rivet rod collector case provided with a stop plate according to the second embodiment of the present invention. 
           [0018]      FIG. 10  is a schematic structural view of a fifth embodiment of the present invention, showing a rivet rod collection bag attached to the opening of the base. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0019]    Referring to  FIGS. 1-4 , a riveting tool  10  with a rivet rod expelling function in accordance with a first embodiment of the present invention is shown comprising a tool body  20 . The tool body  20  comprises a base  11  and a grip  12  extended from the base  11 . The base  11  has a front side  13 , a rear side  14  and a peripheral wall  15  disposed between the front side  13  and the rear side  14 . The grip  12  is formed integrally with and extends obliquely from the peripheral wall  15 . The base  11  defines therein a passage  16 . The peripheral wall  15  of the base  11  has an opening  17  in communication with the passage  16 . The opening  17  is formed between the passage  16  and the grip  12  at one lateral side of the base  11  at a location near the grip  12 . 
         [0020]    The front side  13  of the base  11  has a rivet hole  18  in communication with the passage  16 . A riveting mechanism (not shown) is provided inside the base  11  between the rivet inlet  18  and the passage  16 . The riveting tool  10  further comprises an electrically connected driving device and battery set  21 . The driving device and battery set  21  drives the riveting mechanism to pull a rivet  91  in the rivet inlet  18 , causing the rivet rod  92  of the rivet  91  to be moved through the passage  16  into the opening  17 . 
         [0021]    When the riveting mechanism pulled apart the rivet rod  92  of the rivet  91 , the broken rivet rod  92  is moved into the opening  17 . At this time, the user can slightly bias the hand that holds the grip  12 , forcing the broken rivet rod  92  to fall out of the base  11  through the opening  17 . 
         [0022]    As stated above, the opening  17  is located on one lateral side of the tool body  20  adjacent to the grip  12 . Thus, the user can expel the broken rivet rod  92  out of the tool body  20  simply by biasing the grip  12  slightly sideways. When compared to prior art riveting tools, the riveting tool in accordance with the present invention has the advantages of ease of operation and simple structure. The riveting mechanism and other related components of the riveting tool in accordance with the present invention have relatively longer service life. 
         [0023]    By means of the aforesaid composition of the present invention, the riveting tool facilitates the user to expel the broken rivet rod. 
         [0024]      FIGS. 5 and 6  show a riveting tool with a rivet rod expelling function  30  in accordance with a second embodiment of the present invention. This second embodiment is substantially similar to the aforesaid first embodiment with the exception of an added rivet rod collector  31 . The rivet rod collector  31  is a hollow open shell having a rivet rod collecting open space  32  surrounded by the upright front wall, upright rear wall and two opposite upright lateral walls thereof, a through hole  33  located on one upright lateral wall in communication with the rivet rod collecting open space  32 , a coupling portion  35  located on the other upright lateral wall and a push rod  36  perpendicularly outwardly extended from the upright front wall thereof. The coupling portion  35  of the rivet rod collector  31  is pivotally coupled to an inner side of the opening  38  of the base  37  such that the rivet rod collector  31  can be biased between a first position and a second position. When in the first position, the rivet rod collector  31  is received inside the base  37  and the rivet rod collecting open space  32  is kept in communication with the passage  16  through the through hole  33 . When the rivet rod of the inserted rivet is pulled apart, the broken rivet rod will fall to the inside of the rivet rod collecting open space  32  of the rivet rod collector  31 . When the user pushes the push rod  36 , the rivet rod collector  31  is biased from the first position to the second position where the rivet rod collector  31  protrudes out of the peripheral wall  39  of the base  37 , i.e., the rivet rod collecting open space  32  is opened to let the collected rivet rod fall out of the riveting tool  30 . By means of the design of the rivet rod collector  31 , the user can conveniently expel broken rivet rods and can also use the rivet rod collector  31  to collect broken rivet rods. Thus, the user can pour out collected broken rivet rods after a continuous series of riveting and rivet rod expelling operations. Therefore, the invention facilitates the work. Further, as shown in  FIG. 9 , the rivet rod collector  31  can be made having a stop plate  34  extended from the upright front wall adjacent to the through hole  33 . When the rivet rod collector  31  is biased out of the base  37 , the stop plate  34  blocks the gap between the passage  16  and the opening  17  temporarily. If the rivet rod collector  31  is not accurately moved to the first position where the through hole  33  is not in fully communication with the passage  16 , the stop plate  37  stops the broken rivet rod in the passage  16 , maintaining normal functioning of the rivet rod expelling function. 
         [0025]      FIG. 7  shows a riveting tool with a rivet rod expelling function  40  in accordance with a third embodiment of the present invention. Similar to the aforesaid second embodiment, this third embodiment is equipped with a rivet rod collector  41 . The rivet rod collector  41  can be transversely straightly inserted into the opening  43  of the base  42  and then moved in and out of the base  42  like a drawer. 
         [0026]      FIG. 8  shows a riveting tool with a rivet rod expelling function  50  in accordance with a fourth embodiment of the present invention. According to this fourth embodiment, the base  51  is provided with a cover plate  52 . The cover plate  52  is movable relative to the base  51  to close or open the opening  54 . Thus, the riveting operation can be continuously performed and the broken rivet rods can be collected inside the opening  54  of the base  51  when the cover plate  52  is kept in the close position. When the user opens the cover plate  52  from the opening  54 , the collected broken rivet rods can be poured out of the riveting tool  50 . 
         [0027]      FIG. 10  shows a riveting tool with a rivet rod expelling function  60  in accordance with a fifth embodiment of the present invention. According to this fifth embodiment, a rivet rod collection bag  63  is directly attached to the opening  62  of the base  61  to collect a bit amount of broken rivet rods. This design achieves the same rivet rod expelling effect. 
         [0028]    Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.