Abstract:
The present invention relates to a loading device of a pneumatic nail gun that has two corresponding receptacles possessed on the connection device and the magazine base. Two grooves are implemented inside the receptacles and two pivots are implemented on both sides of the magazine with two flanges provided on the two pivots. Through the match of the pivots and the flanges with the receptacles and grooves, a user can rotate the magazine having it positioned slantwise so that the loading port of the magazine will be changed in position from firth on the handle to slantwise, then unlock the fixing ridge on the barrel to load nails into the magazine.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to a loading device, and more particularly to a loading device of a pneumatic nail gun that has its both sides pivotally positioned and axially eccentric to its central axis, through that the magazine loading port can be quickly turned out eccentrically and the objective of easy loading would be attained. 
         [0003]    2. Description of Related Art 
         [0004]    As per general acknowledgement to the structure of loading mechanism of magazine of a coiler nailer, a conventional coil nailer has its magazine fixed at the locations of handle and trigger that makes the operation of nails loading not easy. It is necessary to slant the nailer in a certain degree to load nails, therefore some designs of improvement on the mechanism of magazine of coil nailer have been raised in prior patent applications, which are: 
         [0005]    Examples of prior applications described as follows: 
         [0006]    An improvement on relevant mechanism of magazine of a coil nailer that has the magazine installed at a central shaft which is located in the center of a seat for coil nails, in which a hollow space is provided and a limit barricade is provided on top of the hollow space, two positioning groove are provided symmetrically on the central shaft positioning along the axial direction of the central shaft; the positioning groove includes an axially positioned groove and several transverse positioning grooves which are provided on the two sides of the axially positioned grooves in a manner of up-down staggered steps; other relevant improvement that were granted with patent and indeed have the magazine of the coil nailer improved yet still have shortcomings to be further improved as follows: 
         [0007]    1. Not easy to load in nails: in point of view of structure, the improved coil nailer depicted above has its magazine fixed in the front of the handle, it is necessary to slant the nailer in a certain degree to load nails into the magazine smoothly, which is so sophisticated to get nails loaded. 
         [0008]    2. Not easy to operate: is point of view of operation, the improved coil nailer has an overweight magazine cover such that it is not easy for a user to grip the handle firmly during the opening and closing of the magazine cover, to load nails in is not easy and smooth as well, which does not meet the requirement of practically and convenience in operation. 
         [0009]    The present invention has arisen to mitigate and/or obviate the disadvantages of the conventional coil nailer. 
       SUMMARY OF THE INVENTION 
       [0010]    The main objective of the present invention is to provide an improved loading device of a pneumatic nail gun, which is presumed to have nails being loaded quickly, more conveniently and safely, and the objectives of easy operation and safe locking are attained as well. 
         [0011]    To achieve the objective, the nail gun with the loading device in accordance with the present invention comprises two corresponding receptacles possessed on the connection device and the magazine base. Two grooves are implemented inside the receptacles and two pivots are implemented on both sides of the magazine with two flanges provided on the two pivots. Through the match of the pivots and the flanges with the receptacles and grooves, a user can rotate the magazine having it positioned slantwise so that the loading port of the magazine will be changed in position from firth on the handle to slantwise, then unlock the fixing ridge on the barrel to load nails into the magazine. 
         [0012]    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 
         [0013]      FIG. 1  is a side schematic view of a loading device of a pneumatic nail gun in accordance with the present invention; 
           [0014]      FIG. 2  is an exploded perspective view of a loading device of a pneumatic nail gun in accordance with the present invention; 
           [0015]      FIG. 3  is a perspective schematic view of the loading device of the present invention from another side; 
           [0016]      FIG. 4  is a perspective schematic view of the loading device of the present invention when the magazine is opened; 
           [0017]      FIG. 5  is a bottom schematic view of the loading device of the present invention; and 
           [0018]      FIG. 6  is a bottom schematic view of the loading device of the present invention when the magazine is opened. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0019]    Referring to the drawings and initially to  FIGS. 1-3 , a loading device in accordance with the present invention is coupled to a pneumatic nail gun  10  that includes a body  11 , a handle  12 , a trigger  13  and a nosepiece  20 . The pneumatic nail gun  10  is equipped with the body that is connected to the handle  12 , and the trigger  13  is installed on the body  11  near the handle  12 . The nosepiece  20  is coupled to the body. The nosepiece  20  is equipped with a cylinder of barrel  21 . A lid  210  is implemented on one side of the barrel  21 , and a lock hole  211  is implemented on one side of the lid  210  to lock the lid on the nosepiece  20  to complete the operation of nailing. 
         [0020]    The loading device in accordance with the present invention comprises a connection device  30  engaged to the nosepiece  20  with a bolt  22  and a nut  220 , a magazine  40  pivotally mounted to the connection device  30  and a magazine base  50  respectively connected to the handle  12  of the nail gun and pivotally mounted to the magazine  40 . 
         [0021]    The connection device  30  has a connection hole  31  laterally defined therein for connecting to the nosepiece  20  on one end and allowing the bolt  22  extending through the connection device  30 , and a first receptacle  32  defined in a shape of hollow cylinder on the other end. The receptacle  32  has at least one first groove  320  defined in an inner periphery thereof. In the preferred embodiment of the present invention, the first receptacle  32  has two first grooves  320  that diametrically correspond to each other. 
         [0022]    The magazine  40  is pivotally mounted to the first receptacle  32  of the connection device  30 . The magazine  40  has a nail canister  41  defined therein and including a disk and an arc plate vertically extending from a half circumference of the disk. The nail canister  41  has a first pivot  411  and a second pivot  413  respectively extending from two ends of the arc plate thereof. The first pivot  411  and the second pivot  413  symmetrically correspond to each other and each has at least one flange  412 ,  414  outwardly extending therefrom. The at least one flange  412  of the first pivot  411  is movably received in the at least one first groove  320  such that the rotating range of the magazine  40  is limited. In the preferred embodiment of the present invention, there are two flanges  413  diametrically extending from the first pivot  411 . A penetration  410  is provided on the center of the disk. A hollow positioning shaft  42  penetrates through the penetration  410  and is fixed on the nail canister  41  with a first screw  420  and a washer  421 , a spring  422  has two opposite ends respectively connected with the first screw  420  and a second screw  423 . The positioning shaft  42  is elastic and able to adjust the nail holding plate  43  up and down due to a length of nails in the magazine. The nail holding plate  43  is in shape of disk with extrusion in the center. A gasket  44  is positioned under the nail holding plate  43  and the positioning shaft  42 . The magazine  40  includes a magazine cover  45  pivotally connected to the nail canister  41  to defined a space for receiving nails and having a roller  450  with first fixing holes  451  defined therein. A hinge  46  is formed beside the second pivot  413  of the magazine  40 . The hinge  46  has second fixing holes  460  defined therein on two opposite ends. The hinge  46  and the roller  450  are fastened together by a pin  461  and a split ring  462 . A fixing ridge  452  is formed on the magazine cover  45  opposite the roller  450 . When the magazine is closed on the nail canister  41 , the fixing ridge  452  is positioned between the nosepiece  20  and the barrel  21 , the lid  210  will be locked on the nosepiece  20  helping the mechanism being closed firmly and locked in position. 
         [0023]    The magazine base  50  is shaped as an L, wherein one end of the L-shaped has a second receptacle  51  with at least one second groove  510  defined inside, and the other end has a fastening hole  52 . In the preferred embodiment of the present invention, there are two second grooves  510  defined in the inner periphery of the second receptacle  51  and diametrically corresponding to each other. The second receptacle  51  linearly corresponds to the first receptacle  32  in the connection device  30 . A threaded bolt  53  is gone through a washer  54  and engaged the magazine base  50  and the handle  12  with a nut  55 . The second pivot  413  is rotatably received in the second receptacle  51  and the at least one flange  414  is movably received in the at least one second groove  510  such that the rotating range of the magazine  40  is limited. 
         [0024]    With reference to  FIGS. 4 and 5 , the loading device in accordance with the present invention includes the connection device  30  adapted to be couple with the nosepiece  20  of the nail gun. The connection device  30  has the connecting hole  31  for connecting to the nosepiece  20  on one side, and the first receptacle  32  in a shape of hollow cylinder on the other side. The first receptacle  32  has the groove  320  inside. The first pivot  411  of the magazine  40  is pivoted to the first receptacle  32 , and the second pivot  413  of the magazine  40  is pivoted to the second receptacle  51  of the magazine base  50 . When the magazine cover  45  is closed on the nail canister  41 , the fixing ridge  452  is positioned right between the nosepiece  20  and the barrel  21 , the lid  210  will be locked on the nosepiece  20  helping the mechanism being closed firmly and locked in position, as shown in  FIG. 4 . Additionally, the magazine  40  would be turned by means of the pivots  411 ,  413  being pivoted to the receptacle  32 ,  51 , and constrained by the cooperation of flanges  412 ,  414  and the grooves  320 ,  510 , so that the magazine  40  would be slanted in position on one side of the handle  12 , unlock the fixing ridge  452  to load nails into the nail canister  41 . After loading, the magazine cover  45  is closed back on the nail canister  41 , the fixing ridge  452  is positioned right between the nosepiece  20  and the barrel  21 , the lid  210  will be locked on the nosepiece  20  helping the mechanism being closed firmly and locked in position. 
         [0025]    With implementation of the structure described above, the functions as follows would be derived: 
         [0026]    1. Easy to operate: with the pivots  411 ,  413  being pivoted to the receptacles  21   51 , and constrained by the cooperation of flanges  412 ,  414  and the grooves  320 ,  510 , so that the magazine  40  would be slanted in position on one side of the handle  12 . A user just needs to turn the magazine  40  outwardly, than the magazine cover  45  can be opened to load in nail. It is efficient and easy to operate. 
         [0027]    2. Accurate and firm loading: with the pivots  411 ,  413  being pivoted to the receptacles  32 ,  51 , and constrained by the cooperation of flanges  412 ,  414  and the grooves  320 ,  510 , so that the magazine  40  would be slant in position on one side of the handle  12 . The magazine cover  45  can be opened to load in nails firmly. After loading, closing the magazine cover  45  back to the magazine  40  and push the magazine  40  back to the handle  12 , and then the nailing can be operated firmly. 
         [0028]    Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.