JP2517050Y2 - Power hand tools - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power hand-held tool, and more particularly to a handle structure for holding and supporting the tool body by hand.

[0002]

2. Description of the Related Art Various power hand-held tools such as punchers
The motor and the operating part that operates the tool by receiving the rotational force of the motor are incorporated into the tool body to make it smaller and lighter, but it is possible to stably support the power handheld tool even with cutting torque and impact during work. In addition, there is a structure in which grasping handles are projected on both sides of the tool body, and when working, the grasping handles on both sides are grasped with both hands from the left and right to support the power handheld tool.

[0003]

[Problems to be Solved by the Invention] However, when the work environment is narrow or the work posture is forced, it is not possible to hold both grasping hands from the left and right sides to support the power handheld tool. Sometimes the grasping hand of the
If necessary, one grip handle must be removed from the tool body, and the tool body must be supported by only one grip handle. Depending on the work posture, the power handheld tool cannot be supported stably, which may cause an accident or There was a risk of erroneous processing.

The purpose of the present invention is to reduce the working environment,
An object of the present invention is to provide a power hand-held tool that can stably support the work by using both grasping hands even when an unreasonable work posture is required.

[0005]

As a means for solving the above problems, a power hand-held tool according to the present invention is a sub-grip having a main grip on one side and a male screw section on the other end sandwiching the tool body. In a power hand-held tool that is detachably installed by screw fitting, a long hole is formed through a stopper that positions one end of the workpiece and the workpiece to position the tool and the workpiece, and insert it into the same hole. The stopper is attached to the tool body by the tightening force of the screw so that the position of the stopper can be freely adjusted in the tool body within a range in which it can be moved through the elongated hole with respect to the screw fitted to the tool body, and the other end of the stopper is attached. Has a structure in which a female screw is formed so that the sub-grip is projected toward the main grip side and detachably attachable by screw fitting.

[0006]

[Operation] In a normal working environment, the main body and the sub-grip projecting on both sides of the tool body are supported by the left and right hands with both hands to support the tool body, and in that state, the start switch is operated to start the motor. Then, the work material is processed with a tool.
On the other hand, when the work environment is narrow, or when the work attached to the structure is subject to an unreasonable posture, the sub-grip should be attached as necessary so as not to disturb the work. It is detached from the tool body and attached to the stopper on the main grip side. In this state, the power handheld tool is supported from the front and back while gripping both grips from one side of the tool body with both hands to perform the required work. Further, when it is necessary to position the workpiece with respect to the tool, adjust the position of the stopper, hold both grips with both hands, and put the end of the workpiece against the stopper. Perform the required work.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A power handheld tool of this embodiment shown in FIG. 1 is a hydraulic puncher for shearing and punching a metal material, etc., in which a motor, a pump and a cylinder device (not shown) are built in the tool body 1. , As a whole, it is configured as a portable type that can be held by hand. In this hydraulic puncher, a piston rod 2 of a cylinder device that operates by pumping hydraulic oil from the motor-driven pump projects from a tool body 1, and a punching punch 3 of a required size can be attached to and detached from the projecting end. A chuck 4 is provided, and on the end surface of the arm portion 1A of the tool body 1 facing the chuck 4,
A punching die 5 into which the punch 3 is fitted can be mounted. On both sides (front and back direction in FIG. 1) of the arm portion 1A, a stopper 6 having, for example, a substantially U-shape is attached to a mounting seat 7 in the vicinity of the punching die 5 so that the position of the screw 7A can be adjusted via the long hole 6A. It is detachably stopped. The stopper 6 contacts the end surface of the work piece 8 to determine the relative position between the punch 3 and the work piece 8, and the arm portion according to the relationship between the end surface of the work piece 8 and its working position. The fixed position with respect to 1A is determined by the slide position of the long hole 6A.

On one side of the tool main body 1, a main grip 10 having a start switch 9 for the motor is projectingly fixed while supporting the tool main body by hand, and further on the other side of the tool main body 1. The sub-grip 11 is detachably provided on the above. The base end of the subgrip 11 has a male screw 11A.
A is fitted to a female screw formed on the boss portion of the tool body 1, and can be easily removed when it interferes with the work. On the other hand, the U-shaped bottom surface of the stopper 6 is formed with a female screw 6B to which the subgrip 11 can be detachably attached, and the subgrip 11 removed from the tool body 1 is attached to the female screw 6B as required. It can be installed.

Next, the operation of the hydraulic puncher of this embodiment will be described. First, the screw 7A is loosened and the stopper 6 is slid to adjust the position according to the processing position with respect to the end surface of the workpiece 8, and then the main grip 10 and the sub-grip 11 projecting from both sides of the tool body 1 are moved to the left and right. , Hold the tool body 1 with both hands, move the hydraulic puncher to a position where the stopper 6 contacts the end surface of the workpiece 8, and start the motor by operating the start switch 9 while maintaining this state. The pump is actuated to pump the hydraulic oil to the cylinder device, and the punch 3 for punching is gradually moved forward to punch the workpiece 8 and fit it into the die 5. In this state, the start switch 9 is turned off, or the high pressure inside the cylinder device is automatically detected, so that the operation of the pump is stopped, the pressure oil flows out from the cylinder device into the oil tank, and the punching punch 3 is initialized. Return to position. After that, the processing position by the hydraulic puncher is changed or the work piece 8 is replaced as necessary, and the same work is repeated.

On the other hand, the working environment is narrow and the subgrip 11
Is an obstacle, and the work material fixed to the structure is used as a work target, so that an unreasonable work posture is forced and both gripping handles 10 and 11 cannot be grasped from both sides of the tool body 1. Sometimes, the subgrip 11 is removed from the tool body 1 and the female screw 6B of the stopper 6 is removed.
It is attached and fixed to both gripping handles 10, 1 in this state.
Perform the required work while holding 1 from one side of the tool body with both hands.

The present invention is not limited to the above-described embodiments, and can be variously modified without departing from the gist thereof, and can be applied not only to hydraulic punchers but also to various power hand-held tools such as drills and grinders.

[0012]

The power hand-held tool of the present invention has a sub-grip detachably provided on the opposite side of the main grip to the tool main body to determine the relative position between the tool and the work material. Since it can be selectively attached to the provided stopper, when the work environment is narrow or the work posture is forced, the sub-grip is replaced with the stopper and the power hand-held tool of the tool body is replaced. It can be supported from the front and rear direction via one side, and various work can be performed stably and without fear of erroneous processing while supporting the power handheld tool with both hands in any working environment. Moreover, the mounting seat for changing the sub-grip to the main grip side is not formed directly on the tool body but is formed on the stopper.Therefore, in order to provide the mounting seat, a partial thick part is directly attached to the tool body. You don't have to form
Further, even if the screw or the like of the mounting seat is damaged, it is not necessary to replace the tool body and only the stopper can be replaced.

[Brief description of drawings]

FIG. 1 is a side view of a hydraulic puncher which is an embodiment of a power handheld tool according to the present invention.

FIG. 2 is a bottom view of the hydraulic puncher shown in FIG.

[Explanation of symbols]

 1 Tool Body 2 Piston Rod 3 Punch for Drilling 5 Die for Drilling 6 Stopper 6B Female Thread 8 Workpiece 9 Start Switch 10 Main Grip 11 Subgrip 11A Male Thread

Claims (1)

(57) [Scope of utility model registration request] 1. A power hand-held tool in which a main grip is provided on one side of the tool body and a sub-grip having a male thread portion at the tip end is detachably provided by screw fitting on the other side,
A long hole is formed through a stopper that positions the tool and the work piece by contacting one end with the work piece, and the stopper is inserted into the hole and screwed into the tool body through the long hole. The position of the stopper can be freely adjusted in the tool body within a movable range, the stopper is attached to the tool body by the tightening force of the screw, and the other end of the stopper can be detached by protruding the sub grip toward the main grip side. A power handheld tool that is formed by forming a female screw that can be attached by screw fitting.