Patent Application
20120305624
1. Field of the Invention
The present invention relates to an adjusting-fixing assembly, and more particularly relates to an adjusting-fixing assembly for a staple gun that can hold an adjusting nut of the adjusting-fixing assembly securely when the staple gun is used and can provide a preferred quality of construction to the staple gun.
2. Description of Related Art
Conventional staple guns are used extensively with decorations, shoemaking and leatherwear and drives staples into objects and each conventional staple gun has an adjusting assembly mounted on a muzzle of the conventional staple gun to adjust the depth of a staple of the staple gun inserted into objects. The conventional adjusting assembly has a sliding frame, an adjusting nut and an abutting shaft. The sliding frame is movably connected to a side of the conventional staple gun, extends forward to the muzzle of the conventional staple gun and has a front end. The abutting nut is rotatably mounted on the front end of the sliding frame. The abutting shaft is U-shaped, is connected to the adjusting nut and the conventional staple gun ahead the muzzle and has two ends. One of the ends of the abutting shaft is mounted in and screwed with the adjusting nut and the other end of the abutting shaft is slidably connected to the conventional staple gun.
In use, before the conventional staple gun ejects staple into an object, a user can rotate the adjusting nut to enable the abutting shaft to move forward or backward relative to the muzzle of the conventional staple gun to adjust the depth of the staple of the staple gun inserted into objects or walls. When the conventional staple gun ejects a staple into an object, the abutting shaft abuts an external surface of the object to confirm the depth of the staple inserted into the object. However, the conventional staple gun will produce a vibration during the staple ejected into the object and the vibration will transmit to the adjusting nut via the abutting shaft to enable the adjusting nut to rotate relative to the abutting shaft and this will change the depth of the staple inserted into the object and cannot provide a preferred quality of construction to the staple gun.
To overcome the shortcomings, the present invention provides an adjusting-fixing assembly for a staple gun to mitigate or obviate the aforementioned problems.
The main objective of the present invention is to provide an adjusting-fixing assembly for a staple gun that can hold an adjusting nut of the adjusting-fixing assembly securely when the staple gun is used and can provide a preferred quality of construction to the staple gun.
The adjusting-fixing assembly for a staple gun having two opposite sides, a front end and a muzzle in accordance with the present invention has a sliding frame, an adjusting nut, a fixing arm and an abutting shaft. The sliding frame is movably connected to one of the opposite sides of the staple gun, extends forward to the muzzle and has a connecting board with two positioning recesses. The adjusting nut is rotatably mounted on the sliding frame and has a mounting end, a threaded end and an engaging segment. The engaging segment is formed on the adjusting nut between the threaded end and the connecting board and has multiple engaging faces. The fixing arm is rotatably connected to the sliding frame, engages with the adjusting nut and has a connecting rod, an engaging recess and a positioning element. The engaging recess is formed in an inner side of the fixing nut and engages with two adjacent engaging faces of the engaging segment. The abutting shaft is connected to the adjusting nut and is movably connected to the opposite sidewall of the staple gun that is opposite to the adjusting nut.
Other objectives, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
With reference to
The muzzle 51 is formed in the front end of the staple gun 50 to eject staples out of the staple gun 50.
The sliding frame 10 is movably connected to one of the opposite sides of the staple gun 50, extends forward to the muzzle 51 of the staple gun 50 and has a rear end, a front end and a connecting board 11. The rear end of the sliding frame 10 is movably connected to the staple gun 50. The front end of the sliding frame 10 extends forward to the muzzle 51 of the staple gun 50. The connecting board 11 is formed on and protrudes from the front end of the sliding frame 10 and has an arc sidewall and two positioning recesses 111. The positioning recesses 111 are formed on the arc sidewall of the connecting board 11 at an interval.
The adjusting nut 20 is rotatably mounted on the sliding frame 10 and has an external surface, a mounting end 21, a threaded end 22, an engaging segment 23 and a spring 24.
The mounting end 21 of the adjusting nut 20 may be a cylinder, is rotatably connected to the connecting board 11 of the sliding frame 10 and extends backward to the rear end of the sliding frame 10. Preferably, the adjusting nut 20 has a C-ring 25 mounted around the external surface of the adjusting nut 20 between the ends 21, 22 to hold the adjusting nut 20 rotatably on the connecting board 11 of the sliding frame 10. The threaded end 22 of the adjusting nut 20 is formed with the mounting end 21 of the adjusting nut 20 and extends forward to the muzzle 51 of the staple gun 50. Preferably, the adjusting nut 20 has an indent 26 formed around the external surface of the adjusting nut 20 at the threaded end 22 of the adjusting nut 20.
The engaging segment 23 is formed on the external surface of the adjusting nut 20 between the threaded end 22 of the adjusting nut 20 and the connecting board 11 of the sliding frame 10 and has an external surface and multiple engaging faces 231. The engaging faces 231 are continuously formed around the external surface of the engaging segment 23 to form a noncircular engaging segment 23. The spring 24 is mounted around the mounting end 21 of the adjusting nut 20 and abuts the external surface of the staple gun 50 to provide a returning force to the sliding frame 10.
The fixing arm 30 is rotatably connected to the sliding frame 10, engages with the adjusting nut 20 and has a bottom end, a top end, a rear side, a front side, an inner side, a connecting rod 31, an engaging recess 32, a positioning element 33 and a limiting block 34. The connecting rod 31 is formed on and protrudes from the rear side of the fixing arm 30 near the bottom end of the fixing arm 30 and is rotatably connected to the connecting board 11 below the engaging segment 23 of the adjusting nut 20 to enable the fixing arm 30 to rotate relative to the adjusting nut 20 and the sliding frame 10 and to the inner side of the fixing arm 30 to face the engaging segment 23 of the adjusting nut 20.
The engaging recess 32 is formed in the inner side of the fixing nut 30 and engages with two adjacent engaging faces 231 of the engaging segment 23. The positioning element 33 is formed on and protrudes from the rear side of the fixing arm 30 near the top end of the fixing arm 30 above the arc sidewall of the connecting board 11 and has a lower end and a positioning protrusion 331. The positioning protrusion 331 is formed on the lower end of the positioning element 33 and selectively engages with one of the positioning recesses 111 of the connecting board 11 to hold the fixing arm 30 with the sliding frame 10. The limiting block 34 is formed on and protrudes from the rear side of the fixing arm 30 opposite to the connecting rod 31 and selectively abuts the connecting board 11 of the sliding frame 10.
The abutting shaft 40 may be U-shaped, is connected to the adjusting nut 20 and is movably connected to the opposite sidewall of the staple gun that is opposite to the adjusting nut 20 and has two ends. One of the ends of the abutting shaft 40 is mounted in and screwed with the threaded end 22 of the adjusting nut 20 and the other end of the abutting shaft 40 is movably connected to the opposite sidewall of the staple gun that is opposite to the adjusting nut 20 and abuts the external surface of the staple gun 50.
With reference to
According to the above-mentioned operation, the engaging recess 32 of the fixing arm 30 will disengage with engaging faces 231 of the engaging segment 23. Then, the user can rotate the adjusting nut 20 rotating relative to the connecting board 11 of the sliding frame 10 by pushing the indent 26 on the external surface of the adjusting nut 20 to enable the abutting shaft 40 to move forward or backward relative to the muzzle 51 of the staple gun 50 and the depth of the staple inserted into objects can be set easily and conveniently by the adjusting-fixing assembly in accordance with the present invention.
After adjusting the depth of the staple inserted into objects, with reference to
Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
