JPH1034565A - Power tool with lighting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the irradiating direction of a lighting system optionally adjustable according to the length of a tip tool by fitting a lighting system to a grip part rotatably over an attitude of being housed on the bottom side of the grip part and a forward upward attitude of irradiating toward the tip of the tip tool from the bottom side of the grip part. SOLUTION: A power tool with lighting of pistol shape with a grip part 2 connected to the rear face lower part of a body part 1, a power unit 4 with a power source such as a charged type battery enclosed therein is removably mounted to the lower end of the grip part 2, and a lighting system 9 is fitted to the bottom side of a case 5 of the power unit 4. This lighting system 9 is formed by disposing a light source 11, a reflecting plate 12, and the like in a floodlight case 10 and putting a protective cover 8 thereon, and housed in a freely in-and-out state in a housing recessed part 13 formed on the bottom side of the case 5. The floodlight case 10 can be switched in its attitude over an attitude of being housed in the housing recessed part 13 through a hinge part 14 and an obliquely upward attitude of being taken out forward around a shaft 15 so as to illuminate the tip of a tip tool 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power tool such as an illuminated electric drill and an electric screwdriver.

[0002]

2. Description of the Related Art A power tool of this type has a pistol type having a main body having a front end tool such as a drill bit and a plus bit attached thereto and a grip portion continuously provided from a lower rear portion of the main body. And a lighting device that can illuminate a work place brightly in a dark place such as at night, in the ceiling, under the floor, or the like (for example, Japanese Utility Model Laid-Open No. 55-151409, JP-A-1-117882, JP-A-3-79279, etc.). This lighting device is attached to the main body of the power tool (for example,
No. 5-151409, Japanese Utility Model Laid-Open No. 1-117882), and one attached to the grip portion side (Japanese Utility Model Laid-Open No. 3-79279).
No.). When the lighting device is attached to the main unit, if the shape of the main unit or the tip tool is large, light rays are blocked by the main unit or the tip tool, and the illuminated area becomes dark. Vibration generated by the tool causes problems such as poor contact continuity of the light source and breaking of the ball due to shock. However, as shown in FIG. Tool 3
Irradiation is performed obliquely upward from the lower side to the tip of the lens, which is advantageous because such problems as darkness of the hand and broken ball can be solved.

[0003]

However, in the above-mentioned power tool in which the lighting device 9 is provided and fixed at a predetermined position of the grip portion 2, the optical axis of the lighting device 9 is always fixed in a fixed direction. Tip tool 3 to be replaced for front part 1
There is no problem when the lengths are all equal, but when the tip tool 3 is replaced with a different length, the tip position of the tip tool 3 deviates from the optical axis, and it may be difficult to obtain sufficient illumination.

[0004] During operation, when a screw or an embedded nut or the like is accidentally dropped under the floor, the position of the fall is checked using the lighting device 9. It was troublesome that the entire power tool had to be tilted downward.

SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem, and it is possible to arbitrarily change the direction of irradiation by an illuminating device according to the length of a tip tool. It is an object of the present invention to provide an illuminated electric tool capable of obtaining illumination according to the requirements. It is another object of the present invention to provide an illuminated electric tool which can easily confirm the falling position of a falling object during work using a lighting device by a simple operation.

[0006]

The illuminated electric tool according to the present invention includes a main body 1 having a tip tool 3 mounted on a front portion thereof, and a grip 2 continuously provided from a side of the main body 1. A light source 1 for irradiating the grip portion 2 toward the tip tool 3
1 is provided. In the power tool with illumination, according to the present invention, the posture in which the lighting device 9 is stored on the bottom side of the grip portion 2 with respect to the grip portion 2,
It is attached rotatably around the shaft 15 between a forward upward position in which it is emitted from the bottom side of the grip portion 2 and irradiates toward the tip of the tool bit 3, and between a retracted position and a forward upward position. It is characterized in that there is provided means for stopping and holding at an arbitrary rotation angle position.

[0007]

When the tip tool is changed from a short tool to a long tool, the lighting device is illuminated at a rotation angle position larger than the rotation angle position of the illuminating device that illuminates in a forward and upward posture in accordance with the tip of the short tool bit. By stopping and holding the device 9, illumination suitable for the tip of the long tool bit 3 becomes possible. Conversely,
When the tip tool 3 is changed from a long tool to a short tool, the lighting device 9 is turned to a rotation angle position smaller than the rotation angle position of the lighting device 9 that illuminates in a forward upward posture in accordance with the tip of the long tool bit 3. Is stopped and held, illumination suitable for the tip of the short tool bit 3 becomes possible.

When a screw or an embedded nut is accidentally dropped on the floor during work in a dark place, the position of the fall is checked using the lighting device 9 without tilting the entire power tool. By returning the device 9 to the bottom side of the grip portion 2, it is possible to immediately illuminate the direction directly below the grip portion 2 and visually recognize the drop location.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. This illuminated electric tool has a cylindrical main body 1 containing driving means (not shown) such as a motor.
It is formed in a pistol shape in which a grip portion 2 is continuously provided from the lower portion of the rear peripheral surface. A tool bit 3 such as a drill bit is detachably mounted on the front portion of the main body 1. Grip part 2
A power supply unit 4 containing a power supply such as a rechargeable battery or a dry battery is detachably attached to a lower end of the power supply unit. The power supply unit 4 includes a case 5 and a connecting portion 6 erected on an upper portion of the case 5. The connecting portion 6 has a connector 7 and is detachably attached to a lower end of the grip portion 2. The lighting device 9 is attached to the bottom side of the device 5.

The illuminating device 9 has a dish-shaped illuminating light case 10.
, A light source 11 such as an LED, and a reflector 1
2 and a protective cover 8 made of a glass plate, a transparent plastic plate or the like, and a storage recess 13 having a dish-shaped cross section on the bottom side of the case 5 of the power supply unit 4.
And the illumination lamp case 10 is stored in the storage recess 13 so as to be freely taken in and out. At this time, the lighting case 10 has a hinge portion 14, and the hinge portion 14
5, the lighting device 9 is connected to the storage recess 13.
The posture can be freely switched between a posture stored in the storage recess 13 and an obliquely upward posture in which the front end of the tool bit 3 is taken out forward around the shaft 15 from the storage recess 13.

The lighting case 10 has a knob 16 on the side opposite to the hinge 14, and the knob 16 is attached to the case 5.
The illumination device 9 is held in the storage recess 13 by being detachably engaged with the engagement recess 17 provided on the bottom side of the lighting device 9. Further, the lighting lamp case 10 fits the shaft 15 into the shaft hole 19 on the case 5 side, and stops the lighting device 9 at an arbitrary rotation angle position between the retracted posture and the front upward posture by this fitting force (frictional force). Be able to hold. As the stop holding means, for example, as shown in FIG. 2, a jagged uneven portion 20 is provided on the end surface of the hinge portion 14, and the uneven jagged portion 21 is provided on the case 5 side. Can be disengaged with the turning operation of the lighting device 9.

When the illuminating device 9 is taken out from the storage recess 13 forward around the shaft 15 and is inclined obliquely upward, the tip of the tool bit 3 is illuminated by turning on the light source 11. At this time, by changing the obliquely upward angle of the lighting device 9 according to the length of the tip tool 3, the tip of the tip tool 3 is illuminated in an appropriate light distribution state without lack of luminous intensity even if the tip tool 3 is long or short. can do. When the screw or the embedded nut is accidentally dropped under the floor during the operation, the lighting device 9 can be rotated in the direction of being stored in the storage recess 13 with the other hand while holding the grip portion 2 with one hand. By illuminating directly below, the drop position can be easily confirmed immediately.

In the above embodiment, the case 5 of the drive unit 4
The lighting device 9 is provided on the bottom side of the case 5, but is not limited to this. In addition, for example, as shown in FIG. May be rotatably provided around a common shaft 15. According to this, as shown in FIG.
Can be set separately, and the irradiation range to the tip of the tool bit 3 can be expanded.

[0014]

According to the present invention, the lighting device 9 is held by the grip portion 2.
The tip tool attached to the tip of the main body 1 can be stopped and held at an arbitrary rotation angle position between the attitude of being stored on the bottom side and the front upward attitude of irradiating toward the tip of the tip tool 3. It is advantageous that each tip can be illuminated in an appropriate light distribution state regardless of whether the length 3 is long or short. Further, the falling position of the falling object during the work can be easily confirmed by a simple operation using the lighting device 9, which is convenient for finding.

[Brief description of the drawings]

FIG. 1 is a side view of an entire power tool showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a part of the power tool shown in FIG.

FIG. 3 is a perspective view of a drive unit of a power tool according to another embodiment of the present invention as viewed from a bottom side.

FIG. 4 is a side view of the drive unit shown in FIG.

FIG. 5 is a perspective view of a conventional power tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body part 2 Handle part 3 Tip tool 9 Lighting device

Claims (1)

[Claims] 1. A main body 1 having a tip tool 3 mounted on a front part.
And a grip portion 2 continuously provided from the side of the main body portion 1, and an illuminated electric device provided with an illuminating device 9 having a light source 11 for irradiating the tip tool 3 on the grip portion 2 side. In the tool, the lighting device 9 is stored at the bottom of the grip portion 2 with respect to the grip portion 2, and the front upward posture is emitted from the bottom side of the grip portion 2 and irradiated toward the tip of the tool bit 3. And is rotatably mounted around the shaft 15
An illuminated electric tool, comprising: means for stopping and holding at an arbitrary rotation angle position between a storage position and a front upward position.