JP2001170878A - Portable type rotary tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To largely improve workability in a portable type rotary tool by composing it in such a way that both hands can be set free in carrying it, and that a hand grip of it can be easily gripped in using it. SOLUTION: This portable impact wrench 1 is provided with a battery containing part 5 at a lower end part of a hand grip 3, and a pin 11 is embedded in a rear end lower corner part 9 of a motor housing 7. A shoulder strap 15 of which one end is installed on the pin 11, and of which the other end is installed on a fixed screw 13 at a lower end part of the hand grip 3 is provided. This shoulder strap 15 is adjusted so that the hand grip 3 is positioned to be roughly horizotally around the hip of a worker when this is put on the shoulder of the worker.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary tool such as an impact wrench, an impact driver, a screw driver, and a vibration drill.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 2, there is known a portable rotary tool 100 in which a shoulder strap 101 for freeing both hands during carrying is provided at an upper portion of a tool body 103. (US Patent Specification No. 3,76
0,886).

[0003]

However, in the conventional portable rotary tool 100, when an operator tries to use the tool from a state of being hung on the shoulder, the shoulder strap 101 is used.
Must be temporarily removed from the shoulder and the handgrip 105 must be grasped by hand, which causes a problem that workability is not good.

In view of the above, the present invention provides a portable rotary tool which allows both hands to be free when being carried and allows the user to easily hold the handgrip when using the tool. The purpose is to:

[0005]

SUMMARY OF THE INVENTION A portable rotary tool according to the present invention, which has been made to achieve the above object, is a portable rotary tool for performing operations such as screw tightening, bolt tightening or drilling. Has a T-shape with a motor housing at the top of the handgrip so as to extend in a direction intersecting with the handgrip, and at the bottom of the handgrip, has a battery storage for storing a rechargeable battery, A shoulder strap having one end attached to a lower portion of the handgrip and the other end attached to a portion of the motor housing extending rearward from the handgrip, and when the shoulder strap is hung on the shoulder, the handgrip is It is characterized in that it is configured to be substantially horizontal at the waist.

According to the portable rotary tool of the present invention, the shoulder strap is hung on the shoulder when moving,
Both hands can be free. In addition, when the shoulder strap is hung on the shoulder, the hand grip is substantially horizontal at the waist of the worker due to the weight balance of the motor housing and the battery housing. As a result, when attempting to use the rotating tool hung on the shoulder, the worker can hold the hand strap near the waist and grasp the hand grip with the shoulder strap hung on the shoulder. it can. Therefore, workability can be greatly improved in moving and using a tool.

In the portable rotary tool of the present invention, the tool body has a half-split housing structure, and one end of the shoulder strap is attached to a lower corner of a rear end of the motor housing. It is good to have the structure which embedded the pin for it. Here, the other end of the shoulder strap may be attached to a housing assembly screw provided at the rear of the lower end of the handgrip.

[0008] According to this portable rotary tool, by mounting the shoulder strap to the motor housing as described above, when the portable rotary tool is hung on the shoulder,
The tool hangs straight down with the rotating part down, and the hand grip is almost horizontal at the operator's waist. In addition, since the mounting portion of the shoulder strap to the motor housing does not become a projection and is provided at the lower corner, if the portable rotating tool is accidentally dropped on the floor, There is no damage to the mounting part.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a rechargeable portable impact wrench as an embodiment of the present invention will be described.
As shown in FIG. 1, the portable impact wrench 1 has a T-shaped pistol shape as a whole. The portable impact wrench 1 is of a rechargeable type, and includes a battery housing 5 at the lower end of the handgrip 3. Furthermore, this portable impact wrench 1
Has a structure in which a tool body has a half-split structure, and a pin 11 is embedded in a lower end lower corner portion 9 of the motor housing 7. One end is attached to the pin 11 and the other end is attached to the fixing screw 13 at the lower end of the hand grip 3.
5 is provided. The length of the shoulder strap 15 is adjusted so that the handgrip 3 is positioned near the operator's waist when the operator hangs on the shoulder. Further, since the tool body has a half-split structure and both ends of the shoulder strap 15 are attached to the pins 11 and the fixing screws 13 as described above, the assembly of the pins 11 is easy. And the shoulder strap 15 is located at the center of the tool body.

When the operator puts the shoulder strap 15 of the portable impact wrench 1 on his / her shoulder, the processing portion 17 is turned downward by the weight of the tool main body, and the hand grip 3 is almost horizontal at the waist of the operator. It is suspended so that it becomes. As a result, the worker can make both hands free by hanging the shoulder strap 15 on the shoulder when moving, and only to bring his hand to his waist when starting work. Thus, the hand grip 3 can be held as it is. Therefore, the worker
While holding the shoulder strap 15 on the shoulder, the user can grasp the handgrip 3 and immediately proceed to the next operation. In addition, the shoulder strap 15 is attached to a center position symmetrical with respect to the tool body. As a result, the weight balance is good, and the tool body does not tilt when the shoulder strap 15 is hung on the shoulder.

As described above, according to the portable impact wrench 1, the worker can move both hands free when moving, and when climbing to a high place, can use both hands. It is very convenient because it can be used. Then, when starting work, the shoulder strap 13
By holding the hand on the waist while holding the on the shoulder, the handgrip 3 can be naturally grasped, and a smooth transition can be made to the next operation. As a result, the usability of the portable impact wrench 1 is greatly improved.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and it is needless to say that various other forms can be adopted without departing from the gist of the present invention. It is.

For example, the invention is not limited to a portable impact wrench, but a portable driver drill, an impact driver,
The present invention can be directly applied to tools such as a screwdriver and a vibration drill. Furthermore, the attachment position of the shoulder strap 13 may be such that the hand grip 3 is positioned substantially horizontally at the waist of the worker when the shoulder strap 15 is hung on the shoulder. One end may be attached to the upper corner portion of the rear end of 7.

[0014]

As described above, according to the present invention, in a portable rotary tool, both hands can be made free when being carried, and the hand grip can be easily made when using the tool. , And workability can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a front view showing a portable impact wrench according to an embodiment in a partial cross section.

FIG. 2 is a front view of a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Portable impact wrench, 3 ... Hand grip, 5 ... Battery storage part, 7 ... Motor housing, 9 ... Rear end lower corner part, 11 ... Pin,
13: fixing screw, 15: shoulder strap, 1
7 Processing part.

Claims (2)

[Claims] 1. A portable rotary tool for performing operations such as screw tightening, bolt tightening or drilling, wherein a tool main body is provided with a motor housing above a hand grip so as to extend in a direction intersecting the hand grip. It has a T-shape, and a lower part of the hand grip is provided with a battery storage part for storing a rechargeable battery, and one end is attached to a lower part of the hand grip, and the other end is smaller than the hand grip of the motor housing. A portable rotating tool comprising: a shoulder strap attached to a portion extending rearward, wherein when the shoulder strap is hung on the shoulder, the hand grip is substantially horizontal at the waist of an operator. . 2. The portable rotary tool according to claim 1, wherein the tool body has a half-split housing structure, and one end of the shoulder strap is attached to a lower corner of a rear end of the motor housing. A portable rotary tool characterized by burying pins for use.