JP5007934B2 - Electric tool - Google Patents

Description

  The present invention relates to an electric tool with a light provided with a light irradiation device that illuminates a work target location.

  In order to facilitate work in a dark place, there is an electric tool including a light irradiation device that illuminates a work target location (see Patent Document 1). In addition to providing such a light irradiation device in a place as in Patent Document 1, in order to efficiently illuminate the vicinity of the tip of the tip tool, the light irradiation device is disposed on the outer peripheral portion of the drive unit case holding the output shaft in the electric tool. There is a case.

JP 2003-2111374 A

  In an electric tool with a light, when the light irradiation device is disposed on the outer peripheral surface of the drive unit case, the light irradiation device is disposed because the light irradiation device is disposed between the drive unit case and the switch trigger. In many cases, it is difficult to secure sufficient space. In addition, when a light irradiation device of a size that can sufficiently irradiate light is provided, the distance between the axis of the output shaft and the axis of the switch trigger in the advancing / retreating direction is increased, and the usability of the power tool body is deteriorated Disadvantages occur.

  The present invention has been invented in view of the above-mentioned conventional problems, and sufficient light irradiation is possible even when it is difficult to secure a space for arranging a light irradiation device having a size capable of sufficiently irradiating light. An object of the present invention is to provide an electric tool with a light that can secure a range and can also focus on a work target location.

In order to solve the above-described problems, the present invention provides a drive mechanism that drives a tip tool and a main body that houses a motor, a grip that is formed integrally with the main body, and an outer periphery of a drive case that covers the drive mechanism. In the electric tool having an illumination device that illuminates the work area by the tip tool, the main body portion and the grip portion are formed by a left and right split housing, and the illumination device includes a light source, the light source And a lens part formed integrally with the holder member, and the holder member is sandwiched and fixed by the split housing, and the lens part is formed by the tip tool. One feature is that it has a convex lens part that can focus on the work target part, and a concave lens part that is integrally formed with the convex lens part and that irradiates the periphery of the work target part. Having.

In the present invention, by providing the uneven shape of one irradiation lens that is a component of the light irradiation device, the light irradiation device is not affected by the size of the light irradiation device, and the irradiation function of two types of lights from one light source is achieved. Can be realized.

  The present invention will be described based on an embodiment shown in the accompanying drawings. In the electric tool shown in FIG. 1, a battery pack 3 is detachably attached to a lower end of a grip portion 2 integral with a body portion 1 incorporating a motor and a drive mechanism. The grip 2 has a trigger switch 4 and a rotation direction switching lever 5 at its upper end, and a chuck 7 for holding a driver bit 6 at the front end of the main body 1.

The main body 1 and the grip 2 are formed in left and right split housings 1a and 1b in such a manner that an output shaft protruding from the tip is connected to a drive unit case 9 that covers the driver drill drive mechanism.

  A light 10 for illuminating a work location is attached to the outer peripheral portion of the drive unit case 9 and at a position in front of the upper end of the grip unit 2, and houses the high-intensity light-emitting diode 11 and the high-intensity light-emitting diode 11 made of transparent resin. It is comprised by the diode holder 12 which provided the accommodation recessed part 12a and the lens part 12b. As is apparent from FIGS. 1 and 3, the diode holder 12 that is a component of the light 10 does not directly contact the drive unit case 9, and is formed by boundary frames 1 a 1 and 1 b 1 formed in the housings 1 a and 1 b. The space is partitioned, and the diode holder 12 is fixed between the drive unit case 9 and the trigger switch 4 by the housings 1a and 1b.

In addition, as shown in FIG. 4 , the light 10 faces obliquely upward, so that it can illuminate around the periphery of the driver bit 6 as a tip tool. It can be carried out.

  The light 10 is configured not to be interlocked with the operation of the trigger switch 4 but to be lit with a different switch.

As shown in FIGS. 5 and 6 , the lens portion 12b of the transparent resin diode holder 12 that accommodates the high-intensity light-emitting diode 11 therein has a lens portion 12c having a convex curvature and a lens having a concave curvature. The portion 12d is composed of two or more uneven shapes, and the direction of the light emitted by the high-intensity light emitting diode 11 is set to focus on the work target location by the shape of the convex curvature lens portion 12c. . Further, the shape of the concave curvature lens portion 12d makes it possible to irradiate a wide range of light directions without focusing on the work target location, and to obtain two light irradiation functions with a single light source.

As shown in FIG. 5, there is a convex curvature lens portion 12c in front of the high-intensity light emitting diode, and a radius smaller than the radius of the convex curvature lens portion 12c at the center of the front surface of the convex curvature lens portion 12c. A concave lens portion 12d having Therefore, as shown in FIG. 7 , two lights, ie , an irradiation range D for irradiating a relatively wide area by the convex curvature lens portion 12c and an irradiation range E for irradiating a relatively small range by the concave lens portion 12d, are used. Can be irradiated.

  Further, by changing the curvature of the convex curvature lens portion 12c and the concave curvature lens portion 12d, the light converging area is adjusted to the size of each product and set to satisfy the irradiation function unique to the product. It becomes possible. Therefore, even if the size of the light irradiation device is not sufficient, the necessary light irradiation amount can be realized by changing the curvature of the convex curvature lens portion 12c and the concave curvature lens portion 12d.

The front view of the electric tool with a light which has arranged the light irradiation apparatus of Example 1 The side view of the electric tool with a light which has arranged the light irradiation device of Example 1 Partial sectional view of FIG. Part A enlarged view of FIG. FIG. 4 is a detailed view of the diode holder as viewed in the direction of arrow B in FIG. Sectional view taken along line C-C in FIG. 5 The figure which shows the irradiation range D of the light of a convex curvature lens part, and the irradiation range E of the light of a concave curvature lens part at the time of high-intensity light emitting diode lighting

1 is a main body, 1a and 1b are split housings, 1a1 and 1b1 are border frames, 2 is a grip, 3 is a battery pack, 4 is a trigger switch, 5 is a rotation direction switching lever, 6 is a driver bit, 7 is a chuck, 9 is a drive unit case, 10 is a light, 11 is a high-intensity light emitting diode, 12 is a diode holder, 12a is a storage recess, 12b is a lens unit, 12c is a lens unit having a convex curvature, and 12d is a concave curvature. This is the lens part.

Claims (2)

  A drive mechanism for driving the tip tool and a main body for storing the motor;
A grip integrally formed with the main body,
In the electric tool having an illumination device that is provided on an outer peripheral portion of the driving unit case that covers the driving mechanism and that irradiates a work area by the tip tool
The main body part and the grip part are formed by a left and right split housing,
The lighting device includes a light source, a holder member that stores the light source, and a lens unit that is formed integrally with the holder member.
The holder member is sandwiched and fixed between the two split housings, and the lens portion is formed integrally with a convex lens portion capable of focusing on a work target location by the tip tool, and the convex lens portion. A power tool comprising a concave lens portion that irradiates the periphery of the work target portion. The electric power tool characterized in that the holder member has a light source holding part for holding a light source and a lead wire holding part for holding a lead wire.

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