Patent Publication Number: US-2019176311-A1

Title: Nailing device and adjustable nailing depth module thereof

Description:
FIELD OF THE INVENTION 
     The technical field of this disclosure relates to a nailing device, and more particularly to a nailing device and its adjustable nailing depth module. 
     BACKGROUND OF THE INVENTION 
     In general, a conventional nail gun has a safety lock installed at a muzzle of the nail gun, a safety plate linked with the safety lock, and an adjusting mechanism provided for moving the safety lock back and forth. When the position of the safety lock is adjusted by the adjusting mechanism, the safety lock abuts against a surface of a workpiece. After the safety lock is pressed and a trigger mechanism of the nail gun is pulled, the safety plate is linked to hit the trigger mechanism, so that a cylinder in the nail gun is actuated to strike a nail. The safety lock can be driven to move forward or backward by rotating the adjusting mechanism, so as to change the distance between the muzzle and the surface of the workpiece by the operation of the nail gun and achieve the effect of adjusting the nailing depth of the nail gun. 
     However, most of the adjusting mechanisms of the conventional nail gun are hidden between the muzzle and the safety lock by a cover, so that it is necessary to lift the cover to expose and rotate the adjusting mechanism. In addition, the components of the adjusting mechanism are too complicated and thus making the assembling process difficult and incurring high costs and inconvenient maintenance. Therefore, it is a main subject for the nail gun related industry to improve over the conventional nail gun by providing a convenient and simple-structured adjusting mechanism. 
     In view of the aforementioned drawbacks of the conventional nail gun, the discloser of this disclosure based on years of experience in the related industry to conduct extensive research and experiment, and finally developed an innovative nailing device and its adjustable nailing depth module to overcome the drawback of the prior art. 
     SUMMARY OF THE INVENTION 
     Therefore, it is a primary objective of this disclosure to overcome the drawbacks of the prior art by providing a nailing device and its adjustable nailing depth module, wherein a safety device will be blocked and limited by an adjusting shaft when the safety device abuts the adjusting shaft while the safety device is being restricted from moving close to the muzzle, so as to limit the distance between the safety device and the muzzle and achieve the effect of adjusting the nailing depth of the nailing device. 
     In an exemplary embodiment of this disclosure, this disclosure provides a nailing device comprising: a gun body including a muzzle and a trigger; a safety device installed on a side of the muzzle and capable of moving with respect to the muzzle, and an end of the safety device being near the trigger for driving the trigger, and the other end of the safety device having a contact and a transmission rod extending in a direction from the contact towards the gun body and parallel to the muzzle; and an adjustable nailing depth module further comprising: a fixed rod, together with the muzzle parallelly fixed to the gun body and extending to a length, and the fixed rod having an end section disposed at a position away from the gun body; and an adjusting shaft, coupled to the end section of the fixed rod by a screw structure, and configured to be opposite to the transmission rod; wherein the adjusting shaft is capable of moving close to or away from the transmission rod by using the screw structure, and the safety device is blocked by the transmission rod and the adjusting shaft to restrict the distance of pressing the safety device downwardly towards the muzzle. 
     In an exemplary embodiment of this disclosure, this disclosure provides an adjustable nailing depth module used in a gun body, and the gun body has a muzzle and a safety device capable of moving reciprocally with respect to the muzzle, and the adjustable nailing depth module comprises: a fixed rod with the muzzle parallelly fixed to the gun body and extended to a length, and the fixed rod having an end section disposed away from the gun body; and an adjusting shaft, coupled to the end section of the fixed rod by a screw structure, and configured to be corresponsive to the safety device; wherein, the adjusting shaft is capable of moving away from or close to the safety device by the screw structure, and the safety device is blocked by the adjusting shaft to restrict the distance of pressing the safety device downwardly towards the muzzle. 
     Wherein, the ball is accommodated in the ball pocket and embedded into the limit slot. When the adjusting shaft rotates with respect to the fixed rod, and the ball is configured to be corresponsive to the limit slot, the ball will roll into the limit slot and be embedded into the limit slot, so as to achieve the effect of positioning the adjusting shaft. 
     Wherein, the adjustable nailing depth module achieves the effect of adjusting the nailing depth of the nailing device by means of the simple components and their structural assembly of the safety device, fixed rod and adjusting shaft. In addition, the adjustable nailing depth module has the advantages of simple components, easy assembling, convenient operation, and low cost. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of a nailing device of this disclosure; 
         FIG. 2  is a perspective view of an adjustable nailing depth module of this disclosure; 
         FIG. 3  is an exploded view of an adjustable nailing depth module of this disclosure; 
         FIG. 4  is a schematic view of using an adjustable nailing depth module of this disclosure; 
         FIG. 5  is a schematic view showing a first using status of a nailing device in accordance with this disclosure; 
         FIG. 6  is a schematic view showing a second using status of a nailing device in accordance with this disclosure; and 
         FIG. 7  is a schematic view showing a third using status of a nailing device in accordance with this disclosure. 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The technical contents of this disclosure will become apparent with the detailed description of preferred embodiments accompanied with the illustration of related drawings as follows. It is noteworthy that same numerals are used for representing same respective elements in the drawings. 
     With reference to  FIGS. 1 to 7  for a nailing device and its adjustable nailing depth module in accordance with this disclosure, the nailing device  10  comprises a gun body  1 , a safety device  13  and an adjustable nailing depth module  2 ; and the adjustable nailing depth module  2  comprises a fixed rod  22  and an adjusting shaft  23 . 
     In  FIGS. 1, and 5 to 7 , the gun body  1  has a muzzle  11  and a trigger  12 , and the safety device  13  is installed on a side of the muzzle  11  and capable of moving reciprocally with respect to the muzzle  11 , and a restoring spring  14  is installed between the gun body  1  and the safety device  13 , and an end of the safety device  13  is installed at a position near the trigger  12  for driving the trigger  12 , and the other end of the safety device  13  has a contact  131  and a transmission rod  132  extended from the contact  131  in a direction towards the gun body  1  and substantially parallel to the muzzle  11 , and the safety device  13  has a front end  133 , and the contact  131  is fixed to front end  133 . 
     Wherein, the movement of the safety device  13  is described below. When a pressure is exerted onto the contact  131  of the safety device  13 , the restoring spring  14  will be compressed to move towards the muzzle  11 . When the pressure exerted onto the contact  131  is released, the restoring spring  14  will also be released, and thus the contact  131  will be moved in a direction away from the muzzle  11 . 
     In addition, the gun body  1  further has a nail gun magazine  15  coupled and communicated to the muzzle  11 , and the nail gun magazine  15  is provided for feeding nails to the muzzle  11 , and the trigger  12  is provided for a user to press, so that the trigger  12  and the components in the gun body  1  automatically drive the nail to be struck out from the muzzle  11 . 
     In  FIGS. 1 to 7 , the adjustable nailing depth module  2  comprises a fixed rod  22 , an adjusting shaft  23  and one or more balls  24 . The fixed rod  22  and the muzzle  11  are parallelly fixed to the gun body  1  and extended to a length, and the fixed rod  22  has an axial line d and one or more limit slots  221  formed in along the axial line d, and the fixed rod  22  has an end section  222  situation at a position away from the gun body  1  and a middle section  223 , and the limit slot  221  is formed in the middle section  223  and the fixed rod  22  has extended from a position between the gun body  1  and the middle section  223 . 
     In  FIGS. 1 to 7 , the adjusting shaft  23  is installed between the fixed rod  22  and the transmission rod  132 , and the adjusting shaft  23  and the end section  222  of the fixed rod  22  are coupled to each other by a screw structure  3 , and the adjusting shaft  23  is configured to be opposite to the transmission rod  132 , and the adjusting shaft  23  can be blocked by the blocking ring  224 , and the adjusting shaft  23  has one or more balls pocket  231  and a recessed ring groove  232 , and the ball pocket  231  penetrates from a bottom wall of the recessed ring groove  232  to an inner wall of the adjusting shaft  23 . 
     Wherein, the adjusting shaft  23  can restrict the distance of pressing the safety device  13  downwardly towards the muzzle  11  by moving the screw structure  3  away from or close to the transmission rod  132  when the safety device  13  are blocked and limited by the transmission rod  132  and the adjusting shaft  23 . 
     In  FIGS. 2 to 4 , the screw structure  3  includes an external thread  31  formed at the outside of the end section  222  of the fixed rod  22  and an internal thread  32  formed at the inside of the adjusting shaft  23 , and the external thread  31  and the internal thread  32  are screwed and coupled to each other. 
     In  FIGS. 2 to 4 , the ball  24  is accommodated in the ball pocket  231  and embedded into the limit slot  221 , so that the adjusting shaft  23  can be rotated with respect to the fixed rod  22 , and when the ball  24  is corresponsive to the limit slot  221 , the ball  24  will roll into the limit slot  221  and be embedded in with the limit slot  221  to achieve the effect of positioning the adjusting shaft  23 . 
     In  FIGS. 2 to 7 , the adjustable nailing depth module  2  further comprises a collar  25  sheathed on and received by the recessed ring groove  232 , and the ball  24  is clamped between the collar  25  and the fixed rod  22 , so that the ball  24  is limited securely in the ball pocket  231 . 
     With reference to  FIGS. 1 to 7  for the using status of the nailing device  10  and the adjustable nailing depth module  2  in accordance with this disclosure, the contact  131  at the front end  133  of the safety device  13  is provided for abutting a surface of a workpiece and pressed, and the trigger  12  is pressed, and the trigger  12  and internal components of the gun body  1  are linked to drive the nail to be stuck out from the muzzle  11 . After the adjusting shaft  23  is adjusted by the screw structure  3  to move away from or close to the transmission rod  132 , the contact  131  at the front end  133  of the safety device  13  will abut against a surface of a workpiece, and the safety device  13  will compress the restoring spring  14  and be moved towards the muzzle  11 . However, when the transmission rod  132  abuts against the adjusting shaft  23 , the transmission rod  132  will be blocked by the adjusting shaft  23  to restrict the safety device  13  from moving close to the muzzle  11 , so as to limit the distance of pressing the safety device  13  downwardly towards the muzzle  11 . In other words, the distance between the muzzle  11  and the surface of the workpiece is limited to achieve the effect of adjusting the nailing depth of the nailing device  10 . 
     With reference to  FIGS. 4 to 6  for details, the adjusting shaft  23  is not rotated nor extended to the outside with respect to the fixed rod  22 , so that when the contact  131  at the front end  133  of the safety device  13  abuts against a surface of a workpiece surface, the contact  131  at the front end  133  of the safety device  13  can be pressed all the way down to the maximum depth and towards the muzzle  11 . In other words, the shortest allowable distance from the safety device  13  to the muzzle  11  is achieved, so that the distance between the muzzle  11  and the surface of the workpiece surface is shortened to provide a larger nailing depth of the nailing device  10 . In  FIG. 7 , the adjusting shaft  23  is rotated and extended outwardly with respect to the fixed rod  22  so that when the contact  131  at the front end  133  of the safety device  13  abuts against a surface of a workpiece, the contact  131  at the front end  133  of the safety device  13  can be pressed downwardly to a shorter depth towards the muzzle  11 . In other words, the distance from the safety device  13  to the muzzle  11  is longer, and the distance between the muzzle  11  and the surface of the workpiece surface is larger to provide a smaller nailing depth of the nailing device  10 . 
     Therefore, the adjustable nailing depth module  2  can achieve the effect of adjusting the nailing depth of the nailing device  10  by the simple components and structural assembly of the safety device  13 , fixed rod  22  and adjusting shaft  23 , and the adjustable nailing depth module  2  of this disclosure has the advantages of simple components, easy assembling, convenient operation, and low cost. 
     In summation of the description above, the actuating device capable of controlling the opening and closing of a clamp in accordance with this disclosure is definitely capable of achieving the expected effect and overcoming the drawbacks of the prior art, and the disclosure complies with patent application, and thus is duly filed for patent application. While this disclosure has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of this disclosure set forth in the claims.