JPH0413106Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electric impact tool that performs punching work by operating a hammer using a solenoid.

[Conventional technology]

The applicant's Utility Model Publication No. 56-54063 eliminates the need for a hammer and performs the punching operation by simply pressing, but the locking mechanism of the hammer body is released unless the grip cylinder is pushed down against the strong anti-compression striations. Because it is structured so that it does not move, it has the disadvantage that it gets tired when the work is repeated many times, reducing work efficiency.

Therefore, conventional electric punches (Japanese Patent Application Laid-open No.
No. 94957) was developed.

[The problem that the idea aims to solve]

The present invention is an improvement on such an electric punch, and provides a highly practical electric impact tool that is of a gun type and whose impact strength can be easily adjusted while working.

[Means to solve the problem]

The gist of the present invention will be explained with reference to the accompanying drawings.

A punch tip 2 is located inside the tip 1a of the main body 1 with a handle 9.
The punch rod 4 is provided in a slightly protruding state, and the punch rod 4 is provided so as to be slidable against the return spring 3.
A hammer 6 for striking the rear end is provided, the hammer 6 is slidably provided against the return spring 5, a solenoid 7 for operating the hammer 6 is provided in the main body 1, and a handle protrudes from the main body 1. 9 is provided with a switch 8 for operating the solenoid 7, and an adjusting screw rod 10 is provided for supporting and holding the hammer 6 to maintain a predetermined striking interval L between the hammer tip surface 6a and the punch rod rear end surface. A striking strength adjusting mechanism A that is screwed into a mounting hole 16 provided in the main body 1 in a more protruding state and rotates the adjusting screw 10 to move the adjusting screw 10 back and forth, thereby adjusting the predetermined striking interval L. The present invention relates to an electric impact tool characterized by being provided with.

[Effect]

When the switch 8 is turned on and the solenoid 7 is activated with the punch rod 4 in contact with the workpiece, the hammer 6 slides forward and the tip surface 6a of the hammer 6
Since the rear end 4a of the punch rod 4 is struck, the punch rod 4 is driven forward and performs punching.

When the switch 8 is turned off, the solenoid 7 is deactivated and the hammer 6 and punch rod 4 are returned to their original positions by the return springs 3 and 5.

When adjusting this punching strength, for example, when weakening the strength, the adjustment screw 10 is rotated and moved forward to advance the hammer 6, and the striking interval between the rear end 4a of the punching rod 4 and the tip surface 6a of the hammer 6 is adjusted. Narrow L.

〔Example〕

The main body 1 is cylindrical and has a gun-type configuration with a handle 9 hanging down at the bottom.

The impact strength adjustment mechanism A of this embodiment has its tip abutted against the rear end portion 14 of the hammer, its base end protruding toward the rear of the main body 1, and the adjusting screw 10 inserted into the screw hole 16 provided at the rear of the main body 1. Screw together this adjustment screw 10
Return the hammer 6 by rotating the protruding base end of the spring 5
It is configured to move back and forth by pressing against it, and the striking interval (stroke) between the rear end 4a of the punch rod 4 and the tip surface 6a of the hammer 6 can be adjusted to adjust the striking strength.

The tip portion 1a of the main body 1 is provided with a punch holding cylinder 11, into which a punch rod 4 is fitted as a return spring 3, and a support cylinder 12 is fitted to the rear of the punch rod 4, and this support cylinder A hammer receiving portion 13 is provided at the rear end portion 4a of the punch rod 4 protruding from the punch rod 12.

In the figure, 14 is a stopper part, and 15 is a cord.

[Effect of idea]

Since the present invention has a structure in which the hammer 6 is driven by the solenoid 7 as described above, this punching work can be done by simply operating the switch 8 provided on the handle 9 configured in a gun type. There is no need to push down the grip tube with strong force, and it is not difficult to support with your hands, making punching work easy. Furthermore, continuous punching work is also easy, making it an extremely practical electric impact tool. Become.

Furthermore, since the present invention is provided with the impact strength adjustment mechanism A, the electric impact tool is highly practical and can adjust the impact strength according to the strength of the material to be punched.

Moreover, in the present invention, this striking strength adjusting mechanism A is provided with an adjusting screw 10 that supports and holds the hammer 6 and holds the hammer tip surface 6a and the punch rod rear end surface at a predetermined striking distance L, and this adjusting screw 10 is connected to the main body 1. By screwing into the mounting hole 16 provided in the main body 1 in a more protruding state and rotating the adjusting screw 10, the adjusting screw 10 can be moved back and forth, and the predetermined striking interval L can be adjusted. It is an extremely practical electric impact tool that can be easily fine-tuned while working, has a compact overall design, and is suitable for mass production.

[Brief explanation of the drawing]

The figure is a front cross-sectional view of this machine. 1...Body, 1a...Tip, 2...Punch tip, 3...Return spring, 4...Punch rod, 6...
Hammer, 6a... Hammer tip surface, 7... Solenoid, 8... Switch, 9... Handle, 10...
Adjustment screw rod, 16...Mounting hole, A...Blow strength adjustment mechanism, L...Predetermined strike interval.

Claims (1)

[Scope of utility model registration request] A punch tip 2 is provided in the tip 1a of the main body 1 with a handle 9 in a slightly protruding state, and the punch rod 4
A hammer 6 is provided to be able to slide freely against the return spring 3, and a hammer 6 that strikes the rear end of the punch rod 4 in the center length direction in the main body 1 behind the punch rod 4, and the hammer 6 is moved against the return spring 3. 5 so as to be slidable against the
A solenoid 7 inside the main body 1 that operates the hammer 6
A solenoid 7 is attached to the handle 9 protruding from the main body 1.
A switch 8 for operating the hammer 6 is provided, and an adjusting screw 10 is provided for supporting and holding the hammer 6 to maintain a predetermined striking interval L between the hammer tip surface 6a and the rear end surface of the punch rod, and the adjusting screw 10 is set to protrude from the main body 1. A striking strength adjusting mechanism A is provided which is screwed into a mounting hole 16 provided in the main body 1 and which is capable of adjusting the predetermined striking interval L by rotating the adjusting screw 10 to move the adjusting screw 10 back and forth. An electric impact tool featuring: