JPH09295285A - Power tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize the easy and rhythmical use of power tool by providing a tool supporter driving device, which can selectively rotate a tool supporter with a change lever. SOLUTION: A tool supporter driving device 9 is formed of a motor 12 to be driven by the current, which is supplied from a battery 4 through a switch, and a moving body provided with a bevel gear, which can switch the rotation of a driving shaft 13 of this motor 12 with the operation of a change lever 10 and which can be slid for movement. The driving device 9 is also provided with a rotating mechanism 15 for selectively rotating a tool supporter 5 through a changeover mechanism 14, which is formed of a bevel gear to be selectively engaged with the bevel gear of the moving body with the movement of the moving body. A drill bit 7 for lower hole is fitted to one tool supporter 5, and a drill bit 8 for main hole is fitted to the other tool supporter 5. In this condition, the change lever 10 is operated so that the drill bit 7 for lower hole can be used, and a switch is turned on. Similarly, the change lever 10 is operated so that the selection is switched for use of the drill bit 8 for main hole.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric tool used when a hole is drilled with a drill bit and a screw is rotated with a driver bit or the like.

[0002]

2. Description of the Related Art Conventionally, a power tool of this type is provided with a tool mounting portion to which a driver bit or a drill bit can be removably mounted by a chuck at the tip of a case body that can be held by hand.

[0003]

When performing a variety of work using a conventional electric tool, for example, when making a hole in steel frame, concrete, wood, etc., the main hole is formed after forming the pilot hole. There is a drawback in that the work of replacing the drill bit for the pilot hole and the drill bit for the finishing must be performed at the mounting portion. In addition, when mounting a screw on concrete or wood, since the screw is screwed in after forming the pilot hole, there is a drawback that the drill bit for the pilot hole and the driver bit must be replaced in the tool attachment part. there were.

The present invention has been made in view of the above-mentioned conventional drawbacks,
Easy and rhythmical use without the need to replace the drill bit or the driver bit with the tool mounting part to form the main hole after forming the pilot hole or screw in the screw after forming the pilot hole. It is intended to provide a power tool that can be used.

The above and other objects and novel characteristics of the present invention will become more fully apparent when the following description is read in view of the accompanying drawings. However, the drawings are for explanation only, and do not limit the technical scope of the present invention.

[0006]

In order to achieve the above object, the present invention provides a case body having at least two or more tool attachment portions which can be held by hand, and at least two or more case bodies. Tool supporting tool for detachably supporting a tool rotatably mounted on the tool mounting portion of the tool and a tool for selectively rotating the tool supporting tool integrally or removably mounted on the case body by a change lever An electric tool is constituted by the support tool driving device.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 5, reference numeral 1 denotes a grip portion 2 which can be held by a hand, and an upper end of the grip portion 2 has a tip portion which is substantially bifurcated. A case body composed of a Y-shaped support portion 3, and a storage battery 4 is detachably attached to a lower end portion of a grip portion 2 of the case body 1.

Numerals 5 and 5 denote tool holders rotatably attached to the tool attachment portions 6, 6 at the tip of the support portion 3 of the case body 1. The tool holders 5 and 5 are drill bits as tools. A commonly used chuck has been used, to which the 7 and the driver bit 8 can be detachably attached.

Reference numeral 9 denotes a tool support driving device attached to the case body 1 for selectively rotating the tool supporting devices 5, 5 by a change lever 10. The tool supporting device driving device 9 switches from the storage battery 4 to a switch. The motor 12 driven by the current supplied via 11 and the rotation of the drive shaft 13 of the motor 12 are rotated by the change lever 10
The movable body 14c provided with bevel gears 14a, 14b capable of switching as shown in FIGS. 4 and 5 by the operation of, and the bevel gears 14a, 14b are selectively moved by the movement of the movable body 14c. A rotating mechanism 15 for selectively rotating the tool supporting tools 5 and 5 via a switching mechanism 14 including bevel gears 14d and 14e meshing with each other.
It is composed of

The rotating mechanism 15 is provided with a clutch, a rotation direction changer, and a speed reducer (not shown) which have been generally used in the past.

When the electric tool 16 having the above structure is used, the drill bit 7 for the pilot hole is attached to one tool support 5 and the drill bit 7 for the main hole is attached to the other tool support 5.

In this state, the change lever 10 is operated so that the pilot bit 7 for the pilot hole can be used, the grip portion 2 is held, and the switch trigger 17 is turned on.
By pulling, the pilot bit 7 for the pilot hole rotates, and the pilot hole can be opened.

When the pilot hole is opened, the change lever 10 is operated to switch the drill bit 7 for the main hole so that it can be used, and the drill bit 7 for the main hole is rotated by pulling the switch trigger 17 as described above. Then, the main hole is formed by pushing through the lower hole.

Similarly, as shown in FIG. 1, a drill bit 7 for the main hole is attached to one tool support 5, a driver bit 8 is attached to the other tool support 5, and the tool bit 5 is attached to one tool support 5. A drill bit for holes is attached, a driver bit is attached to the other tool support 5, and one tool support 5
It is possible to use by attaching a large driver bit to and a small driver bit to the other tool support 5.

[0016]

Different Embodiments of the Invention Next, different embodiments of the present invention shown in FIGS. 6 to 18 will be described. In addition,
In the description of the different embodiments of the present invention, the same components as those of the first embodiment of the present invention are denoted by the same reference numerals, and duplicate description will be omitted.

The second embodiment of the present invention shown in FIGS. 6 and 7 is mainly different from the first embodiment of the present invention in that the tip portion projects in an inverted V shape, and the tool of the tip portion is formed. The case body 1A in which the support portions 3A in which the tool support tools 5 and 5 are attached to the attachment portions 6 and 6 are formed is used, and the electric tool 16A using the case body 1A formed in this way is also The same effects as those of the first embodiment of the present invention can be obtained.

The third embodiment of the present invention shown in FIGS. 8 and 9 is mainly different from the first embodiment of the present invention in that the tip portion projects in a substantially right angle direction, and the tool of the tip portion is used. In terms of using the case body 1B in which the support portions 3B in which the tool support tools 5 and 5 are attached to the attachment portions 6 and 6 are used,
Electric tool 16 using the case body 1B formed in this way
Even in the case of B, the same effect as that of the first embodiment of the present invention can be obtained.

The fourth embodiment of the present invention shown in FIGS. 10 and 11 is mainly different from the first embodiment of the present invention in that the motor 12 of the tool holder driving device 9A is operated by a commercial power source. The electric power tool 16C using such a tool support driving device 9A is attached to the case body 1C so that the cord 19 having the insertion 18 attached to the tip is attached to the case body 1C. The same effect as that of the embodiment can be obtained.

The fifth embodiment of the present invention shown in FIGS. 12 to 14 is mainly different from the first embodiment of the present invention in that the tip portion is projected in a three-pronged shape, Switching mechanism 1 in which tools 7, 7A, 8 are attached to tool attachment parts 6, 6, 6 via tool supports 5, 5, 5, respectively.
A power tool constructed in this manner in that the case body 1C that is the support portion 3C including 4A is used, and the attached tools 7, 7A, 8 can be selectively driven by switching the change levers 10, 10. Even with 16D, the same effect as that of the first embodiment of the present invention can be obtained.

The sixth embodiment of the present invention shown in FIGS. 15 to 18 is mainly different from the fifth embodiment of the present invention in that the drive portion 20 of the electric tool 16X such as a commercially available electric drill is different. Attached to the tool attachment parts 6, 6, 6 by switching the change levers 10, 10 using the connection case body 1D in which the three tool attachment parts 6, 6, 6 are formed at the tip end, which has the switching mechanism 14B that can be connected to Tool 7,
With this configuration in that 7A and 8A can be selectively driven, a commercially available electric tool 16X such as an electric drill can be used as a drive source and can be manufactured at low cost.

In each of the above-mentioned embodiments of the present invention, the tool support 5 is explained using a chuck, but the present invention is not limited to this, and fitting fixing, magnet fitting fixing, tightening fixing, etc. Any mechanism may be used as long as it can detachably fix a drill bit, a driver bit, or the like.

A power tool 16X such as a commercially available electric drill
A plurality of tool mounting portions may be formed on a connection case body that can be connected to the driving unit 20 of FIG.

[0024]

As apparent from the above description, the following effects can be obtained in the present invention.

(1) At least two that can be held by hand
A case body formed with at least two tool attachment parts, a tool support for detachably supporting tools rotatably attached to at least two tool attachment parts of the case body, and the case body. Since it is composed of a tool supporting device driving device for selectively rotating the tool supporting device integrally or detachably attached by a change lever, it is possible to form a pilot hole or a main hole. When the work is performed using the two bits subsequently to the above, the work of exchanging the bits is unnecessary, and the work can be performed rhythmically. Therefore, efficient work can be performed.

(2) According to the above (1), at least 2
The rotation of more than one tool support can be switched by operating the change lever. Therefore, the operation is easy, and the bits attached to the two tool supports can be pressed against the machining surfaces, respectively, and can be used easily.

(3) According to the above (1), the structure is simple and it can be easily manufactured.

(4) Claims 2 and 3 also have the above (1) to (3).
The same effect can be obtained.

[Brief description of drawings]

FIG. 1 is a plan view of a first embodiment of the present invention.

FIG. 2 is a front view of the first embodiment of the present invention.

FIG. 3 is a side view of the first embodiment of the present invention.

FIG. 4 is an explanatory diagram of a switching mechanism according to the first embodiment of this invention.

FIG. 5 is an operation explanatory diagram of the switching mechanism according to the first embodiment of this invention.

FIG. 6 is a plan view of the second embodiment of the present invention.

FIG. 7 is a side view of the second embodiment of the present invention.

FIG. 8 is a plan view of the third embodiment of the present invention.

FIG. 9 is a side view of the third embodiment of the present invention.

FIG. 10 is a plan view of the fourth embodiment of the present invention.

FIG. 11 is a side view of the fourth embodiment of the present invention.

FIG. 12 is a plan view of a fifth embodiment of the present invention.

FIG. 13 is a side view of the fifth embodiment of the present invention.

FIG. 14 is an explanatory diagram of a switching mechanism according to a fifth embodiment of this invention.

FIG. 15 is a plan view of the sixth embodiment of the present invention.

FIG. 16 is a side view of the sixth embodiment of the present invention.

FIG. 17 is an explanatory diagram of a switching mechanism according to a sixth embodiment of this invention.

FIG. 18 is an explanatory diagram of a detached state according to the sixth embodiment of this invention.

[Explanation of symbols]

 1, 1A, 1B, 1C: Case body, 2: Grip part, 3, 3A, 3B, 3C: Support part, 4: Storage battery, 5: Tool support tool, 6: Tool mounting part, 7: Drill bit as a tool , 8: driver bit as a tool, 9 and 9A: tool support driving device, 10: change lever, 11: switch, 12: motor, 13: drive shaft, 14: switching mechanism, 15: rotating mechanism, 16 and 16A , 16B, 16C: electric tool, 17: switch trigger, 18: insertion, 19: cord.

Claims (3)

[Claims] 1. A case body formed with at least two or more tool mounting portions that can be held by hand, and a tool rotatably mounted on at least two or more tool mounting portions of the case body. An electric tool comprising: a tool support that is movably supported; and a tool support driving device that is integrally or detachably attached to the case body and that selectively rotates the tool support by a change lever. 2. A case body in which a tool mounting portion is formed on a substantially Y-shaped tip portion that can be held by hand, and a tool rotatably mounted on the tool mounting portion of the case body is removable. An electric tool, comprising: a tool support that is supported by the tool holder; and a tool support driving device that selectively rotates the tool support attached to the case body by a change lever. 3. A case body having a tool mounting portion formed at each of the tip portions projecting at right angles which can be held by hand, and a tool rotatably mounted on the tool mounting portion of the case body can be attached and detached. A tool support that supports
An electric tool comprising: a tool support driving device that selectively rotates the tool support attached to the case body by a change lever.