JP4577192B2 - Electric tool - Google Patents

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Publication number
JP4577192B2
JP4577192B2 JP2005333285A JP2005333285A JP4577192B2 JP 4577192 B2 JP4577192 B2 JP 4577192B2 JP 2005333285 A JP2005333285 A JP 2005333285A JP 2005333285 A JP2005333285 A JP 2005333285A JP 4577192 B2 JP4577192 B2 JP 4577192B2
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illuminating
circuit board
illuminating body
electric tool
main body
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JP2007136606A (en
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秀規 清水
史明 沢野
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Panasonic Corp
Panasonic Electric Works Co Ltd
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Panasonic Corp
Matsushita Electric Works Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02Construction of casings, bodies or handles
    • B25F5/021Construction of casings, bodies or handles with guiding devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Power Tools In General (AREA)

Description

本発明は本体から突出したグリップの端部に電池収納部を形成した電動工具に関する。   The present invention relates to an electric tool in which a battery housing portion is formed at an end of a grip protruding from a main body.

従来から筒状の本体にモータを内装し、該本体の軸方向の一端部に前記モータにより駆動する出力部を設け、該本体から本体の軸方向に対して交差する方向に向けてグリップを突設し、グリップの軸方向における本体とは反対側の端部に電池を収納する電池収納部を形成した電動工具が利用されている。   Conventionally, a cylindrical main body is equipped with a motor, and an output portion driven by the motor is provided at one end in the axial direction of the main body, and a grip projects from the main body in a direction intersecting the axial direction of the main body. A power tool is used in which a battery storage portion for storing a battery is formed at the end of the grip in the axial direction opposite to the main body.

この種の電動工具には特許文献1に示すように本体の先端側を照らすランプやLED(発光ダイオード)からなる照明体を設けたものがあり、このものは夜間や暗所において出力部に取付けた工具や作業の対象となる対象物を照明体で照らしながら作業を行うことができる。ここで特許文献1では電池収納部に回動自在に取付けた照明装置に前記照明体を内装している。 As shown in Patent Document 1, this type of electric tool includes a lamp that illuminates the front end side of the main body and an illuminating body composed of an LED (light emitting diode), which is attached to the output unit at night or in a dark place. It is possible to perform work while illuminating a target tool or an object to be worked with an illuminating body. Here, in Patent Document 1, the illuminating body is housed in an illuminating device that is rotatably attached to the battery housing.

ところで一般的な電動工具の外殻は2つ割りしてなる分割体を組み合わして形成されるものであるが、上記特許文献1のように電動工具に照明体を内装した場合、外殻を形成するにあたって照明体や該照明体と回路基板を接続するリード線が分割体で挟み込まれたり、また分割体に当たったりし、照明体が破損したりリード線が断線する場合があり、照明体と回路基板の電動工具の外殻内に組み込むことが容易ではない。また電動工具内の所定の位置に回路基板を配設する工程と、電動工具内の所定の位置に照明体を配設する工程との2つの工程が必要となり、組み込み作業が面倒である。   By the way, the outer shell of a general power tool is formed by combining two divided bodies. However, when the lighting tool is built in the power tool as in Patent Document 1, the outer shell is When forming, the illuminating body and the lead wire connecting the illuminating body and the circuit board may be sandwiched or hit by the divided body, and the illuminating body may be damaged or the lead wire may be disconnected. And it is not easy to incorporate in the outer shell of the electric tool on the circuit board. In addition, two steps, a step of disposing a circuit board at a predetermined position in the electric power tool and a step of disposing an illuminating body at a predetermined position in the electric power tool, are necessary, and the assembling work is troublesome.

なお特許文献1では照明装置の外殻の一部を透光カバーで構成し、該透光カバーでLEDを覆うことでLEDを保護してLEDの破損を防止しているのだが、この透光カバーは照明装置の外殻に設けたものであり、該透光カバーでは外殻を形成する際にLEDを保護できない。
特開平10−34566号公報
In Patent Document 1, a part of the outer shell of the lighting device is configured with a light-transmitting cover, and the LED is covered with the light-transmitting cover to protect the LED and prevent breakage of the LED. The cover is provided on the outer shell of the lighting device, and the translucent cover cannot protect the LED when the outer shell is formed.
JP 10-34566 A

本発明は上記従来の問題点に鑑みて発明したものであって、従来の電動工具のように回路基板と照明体とを接続するリード線が断線する恐れがなく、尚且つ回路基板に実装した照明体が電動工具の外殻の組み立ての際に外殻に当たる等して破損することを防止でき、照明体と回路基板を容易に電動工具の外殻内に容易に組み込むことができる電動工具を提供することを課題とするものである。   The present invention has been invented in view of the above-mentioned conventional problems, and there is no fear that the lead wire connecting the circuit board and the illuminating body is disconnected as in the conventional electric power tool, and it is mounted on the circuit board. An electric tool that can prevent the lighting body from being damaged by hitting the outer shell during assembly of the outer shell of the electric power tool, and can easily incorporate the lighting body and the circuit board into the outer shell of the electric power tool. The issue is to provide.

上記課題を解決するために本発明に係電動工具は、軸方向を前後方向とする筒状の本体1にモータ5を内装し、該本体1の前端部に前記モータ5により駆動する出力部4を設け、該本体1から下側に向けてグリップ2を突設すると共にグリップ2の下端にグリップ2よりも前方に突出した前突出部22を有する電池収納部3を形成し、該電池収納部3に回路基板20を内装し、該回路基板20に前記前突出部22の上面部から本体1の出力部4側を照らす照明体21と該照明体21を覆う透光カバー23を設け、前記照明体21を電池収納部3の前端と本体1の前端とを結ぶ仮想線Aより後方に位置させることを特徴とするものである。 Power tool Ru engaged with the present invention in order to solve the above problems, an output unit for the motor 5 is furnished to the tubular body 1, the axial longitudinal direction, driven by the motor 5 to the front end of the body 1 4 is provided to form a battery housing portion 3 having protrusions 22 before protruding forward from the grip 2 to the lower end of the grip 2 while projecting grip 2 toward the lower side from the body 1, the battery housing The circuit board 20 is installed in the portion 3, and the circuit board 20 is provided with an illumination body 21 that illuminates the output section 4 side of the main body 1 from the upper surface portion of the front projecting portion 22, and a translucent cover 23 that covers the illumination body 21 . The illuminating body 21 is positioned behind an imaginary line A connecting the front end of the battery housing 3 and the front end of the main body 1 .

上記構成により、電池収納部3に内装した回路基板20にリード線を介することなく直接照明体21を設けることができるので、従来の電動工具のように回路基板20と照明体21とを接続するリード線が断線する恐れがなく、また回路基板20に実装した照明体21は回路基板20に設けた透光カバー23で覆われるので、電動工具の外殻の組み立ての際には透光カバー23により照明体21が電動工具の外殻に当たる等して破損することを防止できる。従って回路基板20と照明体21とを電動工具の外殻内に容易に組み込むことができる。また電動工具内に照明体21及び回路基板20を組み込む際には照明体21を実装した回路基板20を内装する工程を行うだけで良く組み込み作業が一層容易になる。また本体1やグリップ2から振動や衝撃が伝わり難い電池収納部3内に回路基板20を配設したので、振動等で照明体21や透光カバー23が回路基板20から外れたり、回路基板20が故障したりすることを防止できる。   With the above configuration, the illuminating body 21 can be directly provided on the circuit board 20 housed in the battery housing unit 3 without a lead wire, so that the circuit board 20 and the illuminating body 21 are connected like a conventional electric tool. There is no fear of disconnection of the lead wires, and the illuminating body 21 mounted on the circuit board 20 is covered with a light-transmitting cover 23 provided on the circuit board 20, so that the light-transmitting cover 23 is used when assembling the outer shell of the power tool. Therefore, it is possible to prevent the illuminator 21 from being damaged by hitting the outer shell of the electric tool. Therefore, the circuit board 20 and the illuminating body 21 can be easily incorporated into the outer shell of the electric power tool. Further, when the illuminating body 21 and the circuit board 20 are assembled in the electric tool, it is only necessary to perform a process of incorporating the circuit board 20 on which the illuminating body 21 is mounted, and the assembling work is further facilitated. Further, since the circuit board 20 is disposed in the battery housing portion 3 where vibration and impact are not easily transmitted from the main body 1 and the grip 2, the illuminating body 21 and the translucent cover 23 may be detached from the circuit board 20 due to vibration or the like. Can be prevented from malfunctioning.

また透光カバー23の外面における前記照明体21で本体1の出力部4側を照らす光が通過する部分を除く部位を弾性体で覆うことも好ましい。弾性体で照明体21から発する光を遮ることなく照明体21を一層保護できる。   Moreover, it is also preferable to cover a portion of the outer surface of the translucent cover 23 excluding a portion through which light that illuminates the output unit 4 side of the main body 1 passes with an elastic body. The illuminating body 21 can be further protected without blocking the light emitted from the illuminating body 21 with the elastic body.

また回路基板20の前端部に砲弾型のLEDからなる照明体21を照射方向を前斜め上方に向けて実装することが好ましい。
また照明体21及び透光カバー23を前記前突出部22の上面部の前端部から突出させることが好ましい。
また上記照明体21を回路基板20に実装したチップ型LEDとすることも好ましい。照明体21を容易且つ強固に回路基板20に取付けることができる。
Moreover, it is preferable to mount the illuminating body 21 made of a bullet-shaped LED on the front end portion of the circuit board 20 with the irradiation direction obliquely upward in the front direction.
The illuminating body 21 and the translucent cover 23 are preferably projected from the front end portion of the upper surface portion of the front projecting portion 22.
It is also preferable to use a chip-type LED in which the illuminating body 21 is mounted on the circuit board 20. The illuminating body 21 can be easily and firmly attached to the circuit board 20.

また上記照明体21に対向する位置に照明体21から照射された光を屈折及び又は反射して目的とする照射範囲を照らす手段を設けることも好ましい。照明体21から照射された光を出来る限り減光させることなく、確実に目的の照射範囲を照らすことができる。   It is also preferable to provide means for refracting and / or reflecting light emitted from the illuminating body 21 at a position facing the illuminating body 21 to illuminate a target irradiation range. The target irradiation range can be reliably illuminated without reducing the light emitted from the illuminator 21 as much as possible.

本発明では従来の電動工具のように回路基板と照明体とを接続するリード線が断線する恐れがなく、また回路基板に実装した照明体が電動工具の外殻の組み立ての際に外殻に当たる等して破損することを防止でき、照明体と回路基板を容易に電動工具の外殻内に容易に組み込むことができる。また電動工具内に照明体及び回路基板を組み込む際には照明体を実装した回路基板を内装する工程を行うだけで良く組み込み作業が一層容易になる。   In the present invention, there is no fear that the lead wire connecting the circuit board and the illuminating body will be disconnected as in the conventional electric power tool, and the illuminating body mounted on the circuit board hits the outer shell when assembling the outer shell of the electric power tool. Therefore, the lighting body and the circuit board can be easily assembled in the outer shell of the electric power tool. Moreover, when assembling the illuminating body and the circuit board into the electric tool, it is only necessary to perform a process of incorporating the circuit board on which the illuminating body is mounted, and the assembling work is further facilitated.

以下、本発明を添付図面に示す実施形態に基いて説明する。図1乃至図3に示す本実施形態の電動工具は手持式でインパクトドライバやインパクトレンチとして利用されるインパクト回転工具である。   Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. The electric tool of this embodiment shown in FIGS. 1 to 3 is an impact rotary tool that is hand-held and used as an impact driver or impact wrench.

電動工具は、筒状の本体1と、本体1の軸方向の中間部から本体1の軸方向に対して直交する方向に向けて突設したグリップ2と、グリップ2の軸方向における本体1側とは反対側の端部に形成した電池収納部3とで外殻を構成してあり、本体1とグリップ2と電池収納部3の後述の電池パック取付部18は2つ割りしてなる分割体を組み合わして形成される。   The electric tool includes a cylindrical main body 1, a grip 2 projecting from a middle portion of the main body 1 in the axial direction toward a direction orthogonal to the axial direction of the main body 1, and the main body 1 side in the axial direction of the grip 2. The battery housing part 3 formed at the end opposite to the outer shell constitutes an outer shell, and the main body 1, the grip 2, and the battery pack mounting part 18 to be described later of the battery housing part 3 are divided into two parts. It is formed by combining the bodies.

上記グリップ2の本体1側を上側、電池収納部3側を下側とすると、本体1は軸方向の中程をグリップ2の上端に一体に接続している。本体1の一端部には図示しないドライバービットやソケットなどの工具が着脱自在に装着される出力部4を設けている。以下本体1の軸方向を前後方向とし、該軸方向における出力部4側を前側とする。   When the main body 1 side of the grip 2 is the upper side and the battery housing part 3 side is the lower side, the main body 1 is integrally connected to the upper end of the grip 2 in the middle in the axial direction. An output portion 4 to which a tool such as a driver bit or a socket (not shown) is detachably attached is provided at one end portion of the main body 1. Hereinafter, the axial direction of the main body 1 is defined as the front-rear direction, and the output unit 4 side in the axial direction is defined as the front side.

出力部4は本体1の後部に内装したモータ5を駆動源として本体1の軸方向回りに回転駆動するものであり、モータ5の回転駆動力は本体1に内装した駆動伝達部6を介して出力部4に伝達される。   The output unit 4 is driven to rotate about the axial direction of the main body 1 using a motor 5 built in the rear part of the main body 1 as a drive source, and the rotational driving force of the motor 5 is transmitted via a drive transmission unit 6 built in the main body 1. It is transmitted to the output unit 4.

駆動伝達部6は後端側をモータ5に連結した減速部7と、減速部7の前端側に連結される打撃発生部8とで構成される。減速部7及び打撃発生部8を介してモータ5の回転駆動力が減速されてアンビルである出力部4にまで伝達されると共に、出力部4に所定荷重を超える荷重がかかる場合には打撃発生部8にて打撃運動が行われ、この打撃運動により出力部4に衝撃的な回転駆動力が伝達されるようになっている。   The drive transmission unit 6 includes a speed reduction unit 7 whose rear end is connected to the motor 5, and an impact generation unit 8 connected to the front end of the speed reduction unit 7. The rotational driving force of the motor 5 is decelerated and transmitted to the output unit 4 that is an anvil via the deceleration unit 7 and the impact generation unit 8, and when a load exceeding a predetermined load is applied to the output unit 4, an impact is generated. A striking motion is performed in the portion 8, and a shocking rotational driving force is transmitted to the output portion 4 by this striking motion.

減速部7は遊星減速機構からなり、本体1の内面に固着されたリングギア9と、リングギア9の中心部に回転自在に配されたサンギア10と、リングギア9の内面とサンギア10の外面とに噛合して配された複数個のプラネットギア11とにより構成される。プラネットギア11の公転運動が打撃発生部8の駆動軸12に伝達されるようになっている。   The speed reduction unit 7 includes a planetary speed reduction mechanism, and includes a ring gear 9 fixed to the inner surface of the main body 1, a sun gear 10 rotatably disposed at the center of the ring gear 9, an inner surface of the ring gear 9, and an outer surface of the sun gear 10. And a plurality of planet gears 11 arranged in mesh with each other. The revolving motion of the planet gear 11 is transmitted to the drive shaft 12 of the impact generating unit 8.

打撃発生部8はプラネットギア11により回転駆動される前記駆動軸12と、カム機構14を介して駆動軸12と一体に回転駆動されるように、且つ、スライド自在に連結されるハンマ13と、ハンマ13を出力部4側に付勢するスプリング15とを備えたものである。出力部4にかかる荷重が所定荷重以下である場合には、駆動軸12と一体に回転駆動されるハンマ13が、スプリング15に付勢されて出力部4と噛合し、出力部4を一体に回転駆動させるものである。ねじ締め等の作業中に出力部4にかかる荷重が所定荷重を超えた場合には、駆動軸12と一体に回転駆動されるハンマ13が、カム機構14を介してモータ5側にスライドし、その後にスプリング15の復元力により出力部4に対して衝撃的に噛合して、出力部4に対して回転方向の打撃を加えることとなる。上記一連の打撃動作を繰り返すことで出力部4に衝撃的な回転駆動力が伝達され、強力な締結トルクが生じるものである。   The impact generating unit 8 includes a drive shaft 12 that is rotationally driven by a planet gear 11, a hammer 13 that is rotatably driven integrally with the drive shaft 12 via a cam mechanism 14, and is slidably connected. A spring 15 for urging the hammer 13 toward the output unit 4 is provided. When the load applied to the output unit 4 is a predetermined load or less, the hammer 13 that is rotationally driven integrally with the drive shaft 12 is urged by the spring 15 to mesh with the output unit 4, and the output unit 4 is integrated. It is driven to rotate. When the load applied to the output unit 4 during a work such as screw tightening exceeds a predetermined load, the hammer 13 that is rotationally driven integrally with the drive shaft 12 slides to the motor 5 side via the cam mechanism 14, Thereafter, the output force is applied to the output portion 4 by the restoring force of the spring 15, and the output portion 4 is hit in the rotational direction. By repeating the above-described series of hitting operations, a shocking rotational driving force is transmitted to the output unit 4 and a strong fastening torque is generated.

グリップ2の上端部の前面には操作部としてのトリガー16を前後方向に移動自在に設けている。トリガー16を後方に引込操作することで、グリップ2の上端部に内装したトリガー16後方のスイッチ17を操作して、該スイッチ17に電気的に接続されたモータ5への通電を制御できるようにしている。   A trigger 16 as an operation unit is provided on the front surface of the upper end of the grip 2 so as to be movable in the front-rear direction. By operating the trigger 16 backward, the switch 17 behind the trigger 16 built in the upper end of the grip 2 can be operated to control the energization of the motor 5 electrically connected to the switch 17. ing.

また電池収納部3は電源となる図示しない電池を収納するもので、グリップ2の下端に一体に設けた電池パック取付部18と、電池パック取付部18の下面に着脱自在に取付けた電池パック19(図4参照)とからなる。なお図1〜3では電池パック19の図示を省略している。電池パック19に収納した電池は電池パック19を電池パック取付部18に取付けた状態で電池パック取付部18に内装した回路基板20に電気的に接続されるようになっており、該回路基板20にリード線34を介して接続されたモータ5や後述の照明体21に電力を供給できるようになっている。電池収納部3のグリップ2側から見た外形はグリップ2の外形よりも大きく、電池収納部3の外周部(即ち前後端部及び左右両端部)はグリップ2よりも外方に突出している。ここで電池収納部3のグリップ2の下端から前方に突出した部分である前突出部22の突出長さは該前突出部22の前端がグリップ2を握った手の拳の前面よりもさらに前方に位置する寸法としている。   The battery storage unit 3 stores a battery (not shown) serving as a power source. The battery pack mounting unit 18 is provided integrally with the lower end of the grip 2 and the battery pack 19 is detachably mounted on the lower surface of the battery pack mounting unit 18. (See FIG. 4). 1-3, illustration of the battery pack 19 is abbreviate | omitted. The battery stored in the battery pack 19 is electrically connected to a circuit board 20 provided in the battery pack mounting portion 18 in a state where the battery pack 19 is mounted on the battery pack mounting portion 18. Power can be supplied to the motor 5 and the illuminating body 21 described later. The outer shape of the battery housing part 3 viewed from the grip 2 side is larger than the outer shape of the grip 2, and the outer peripheral part (that is, the front and rear end parts and the left and right end parts) of the battery housing part 3 protrudes outward from the grip 2. Here, the protruding length of the front protruding portion 22, which is a portion protruding forward from the lower end of the grip 2 of the battery housing portion 3, is further forward than the front surface of the fist of the hand in which the front end of the front protruding portion 22 grips the grip 2. The dimensions are located at

上記電池収納部3に内装した回路基板20は電動工具に内装したモータ5等の内装部品を制御するための制御部を構成するものであり、電池収納部3の前部に水平に内装している。そしてこの回路基板20には本体1の出力部4側を照らす照明体21と該照明体21を覆う透光カバー23を設けている。   The circuit board 20 housed in the battery housing part 3 constitutes a control part for controlling the interior parts such as the motor 5 housed in the electric tool, and is installed horizontally in the front part of the battery housing part 3. Yes. The circuit board 20 is provided with an illuminating body 21 that illuminates the output unit 4 side of the main body 1 and a translucent cover 23 that covers the illuminating body 21.

図1及び図2では照明体21として砲弾型LEDを回路基板20に実装している。該砲弾型LEDは透明樹脂製で砲弾型のパッケージング24内に図示しない発光素子(LEDチップ)及び該発光素子に接続した2本のリードフレーム25の一部を封止したもので、パッケージング24の基端から導出した2本のリードフレーム25を回路基板20の上面の前端部に直接取付けて実装してある。   In FIG. 1 and FIG. 2, a bullet-type LED is mounted on the circuit board 20 as the illuminating body 21. The bullet-type LED is made of a transparent resin, in which a light-emitting element (LED chip) (not shown) and a part of two lead frames 25 connected to the light-emitting element are sealed in a bullet-type packaging 24. Two lead frames 25 led out from the base ends of 24 are mounted directly on the front end portion of the upper surface of the circuit board 20.

該砲弾型LEDからなる照明体21は図3のように出力部4の前方を照らすためにパッケージング24の先端を回路基板20の前端部から前斜め上方に向けている。つまり光軸を前側程上方に位置するように傾斜させている。照明体21のパッケージング24の先端部は電池収納部3を構成する電池パック取付部18の前端部の上面に形成した孔26から外部に突出して露出している。ここで図2に示すように照明体21のパッケージング24の前端は本体1の前端と電池収納部3の前端とを結ぶ仮想線A、又は本体1の出力部に取付けた工具の先端と電池収納部3の前端とを結ぶ仮想線よりも後方に位置している。   As shown in FIG. 3, the illuminating body 21 made of the bullet-type LED has the front end of the packaging 24 directed obliquely upward from the front end of the circuit board 20 in order to illuminate the front of the output unit 4. In other words, the optical axis is inclined so as to be positioned higher toward the front side. The front end of the packaging 24 of the illuminating body 21 is exposed to the outside through a hole 26 formed in the upper surface of the front end of the battery pack mounting portion 18 constituting the battery housing portion 3. Here, as shown in FIG. 2, the front end of the packaging 24 of the illuminating body 21 is a virtual line A connecting the front end of the main body 1 and the front end of the battery housing portion 3, or the tip of the tool attached to the output portion of the main body 1 and the battery. It is located behind the imaginary line connecting the front end of the storage part 3.

透光カバー23は下側が開口するカップ状で透光性を有する樹脂等からなる。透光カバー23も照明体21と略平行に傾斜しており、内部に照明体21が収まるように被せた状態で下側の端部を直接回路基板20の上面に取付けている。透光カバー23の上側の端部は前記孔26から外部に突出している。ここで照明体21を通した孔26はグリップ2を握った手の拳の前面よりも前方の位置に形成してあり、これによりグリップ2を握った手の拳が照明体21を収納した透光カバー23の孔26から突出した部分に接触し難くなっている。   The translucent cover 23 is made of a translucent resin or the like having a cup shape with an open bottom. The translucent cover 23 is also inclined substantially parallel to the illuminating body 21, and the lower end portion is directly attached to the upper surface of the circuit board 20 with the illuminating body 21 being covered so as to be accommodated therein. The upper end of the translucent cover 23 protrudes from the hole 26 to the outside. Here, the hole 26 through which the illuminating body 21 is passed is formed at a position in front of the front surface of the fist of the hand that grips the grip 2, so that the fist of the hand that grips the grip 2 stores the illuminating body 21. It is difficult to contact the portion protruding from the hole 26 of the light cover 23.

また電池収納部3の電池パック取付部18の上面と前端面とでなすコーナー部の外面にはゴムやスポンジなどからなる弾性カバー27(即ち本例ではこの弾性カバー27を弾性体としている)を取付けている。透光カバー23及び照明体21は孔26及び弾性カバー27の電池パック取付部18の上面を覆う部分を貫通して弾性カバー27の上面側に突出し、電池収納部3の外面における孔26の周縁部は弾性カバー27で覆われている。これにより透光カバー23の外面において照明体21で本体1の出力部4側を照らす光が通過する部分を除く部位が電池収納部3と弾性カバー27とで2重に覆われることとなる。   Further, an elastic cover 27 made of rubber, sponge or the like (that is, the elastic cover 27 is used as an elastic body in this example) is provided on the outer surface of the corner portion formed by the upper surface and the front end surface of the battery pack mounting portion 18 of the battery storage unit 3. It is installed. The translucent cover 23 and the illuminating body 21 penetrate the hole 26 and the portion of the elastic cover 27 that covers the upper surface of the battery pack mounting portion 18, protrude to the upper surface side of the elastic cover 27, and the peripheral edge of the hole 26 on the outer surface of the battery housing portion 3. The part is covered with an elastic cover 27. As a result, the battery housing portion 3 and the elastic cover 27 cover the portion of the outer surface of the translucent cover 23 excluding the portion through which light that illuminates the output portion 4 side of the main body 1 through the illuminating body 21 passes.

上記電動工具は例えば前記トリガー16や照明体21のON/OFFを切換えるスイッチ等を操作することで、照明体21に電力を供給して該照明体21で本体1の出力側を照らすことができるようになっており、これにより夜間や暗所においても電動工具を容易に使用できる。この場合、照明体21を構成する砲弾型LEDのパッケージング24の先端部は孔26から外部に突出しているので、照明体21から照射した光が電池収納部3で遮られることを防止でき、本体1の出力部4側を効率良く照らすことができる。なお本例ではパッケージング24及び照明体21を電池収納部3の外部に突出したが、突出させずに電池収納部3と略面一としても良いものとする。   The electric power tool can supply power to the illuminating body 21 and illuminate the output side of the main body 1 by operating the trigger 16 or a switch for switching on / off the illuminating body 21, for example. Thus, the electric tool can be easily used at night or in a dark place. In this case, since the tip of the packaging 24 of the bullet-type LED constituting the illuminating body 21 protrudes outside from the hole 26, the light irradiated from the illuminating body 21 can be prevented from being blocked by the battery housing portion 3, The output unit 4 side of the main body 1 can be efficiently illuminated. In this example, the packaging 24 and the illuminating body 21 are projected to the outside of the battery housing portion 3, but may be substantially flush with the battery housing portion 3 without projecting.

そして本発明では上記のように照明体21リード線を介することなく直接回路基板20に接続したので、二つ割等複数に分割してなる分割体を組み合わせて電動工具の外殻の中に内装品を組みこむ際には、従来のように回路基板20と照明体21とを接続するリード線が邪魔になったり該リード線が断線するといったことがない。また回路基板20に実装した照明体21は回路基板20に設けた透光カバー23により覆われるので、照明体21が電動工具の外殻の組み立ての際に外殻に当たる等して破損することを防止できる。特に本例では照明体21を電池収納部3の孔26に通して外部に突出してあって、組み立て時に照明体21が孔26の周縁に当たりやすくなっているため有効である。また電動工具内に照明体21及び回路基板20を組み込む際には照明体21を実装した回路基板20を内装する工程を行うだけで良く組み込み作業が一層容易になる。さらに透光カバー23は本体1に内装した後においても照明体21を保護できるので、別途照明体21を保護するカバーを設けることなく、電動工具が落下したり物に当たったりした時に照明体21が破損することを防止できる。また電池収納部3は本体1からグリップ2を介して離れた位置に配置されたものであり、またグリップ2は手で把持される部分であるので、電池収納部3には本体1やグリップ2からの振動や衝撃が伝わり難くなっているが、本発明ではこの振動等が伝わり難い電池収納部3に照明体21及び透光カバー23を取付けた回路基板20を配設したので、振動等で照明体21や透光カバー23が回路基板20から外れたり、回路基板20が故障したりすることを防止できる。 In the present invention, since the illuminating body 21 is directly connected to the circuit board 20 without using a lead wire as described above, the divided bodies divided into a plurality of parts, such as two parts, are combined into the outer shell of the electric tool. When assembling an interior product, the lead wire connecting the circuit board 20 and the illuminating body 21 does not get in the way or the lead wire is disconnected as in the prior art. Moreover, since the illuminating body 21 mounted on the circuit board 20 is covered with a light-transmitting cover 23 provided on the circuit board 20, the illuminating body 21 may be damaged by hitting the outer shell during assembly of the outer shell of the power tool. Can be prevented. In particular, this embodiment is effective because the illuminating body 21 protrudes outside through the hole 26 of the battery housing 3 and the illuminating body 21 easily hits the periphery of the hole 26 during assembly. Further, when the illuminating body 21 and the circuit board 20 are assembled in the electric tool, it is only necessary to perform a process of incorporating the circuit board 20 on which the illuminating body 21 is mounted. Furthermore, since the illuminating body 21 can be protected even after the translucent cover 23 is installed in the main body 1, the illuminating body 21 is provided when the electric tool falls or hits an object without providing a separate cover for protecting the illuminating body 21. Can be prevented from being damaged. In addition, since the battery storage unit 3 is disposed at a position away from the main body 1 via the grip 2 and the grip 2 is a part to be gripped by hand, the battery storage unit 3 includes the main body 1 and the grip 2. However, in the present invention, the circuit board 20 having the illuminating body 21 and the translucent cover 23 attached thereto is disposed in the battery housing portion 3 where the vibration or the like is difficult to be transmitted. It is possible to prevent the illuminating body 21 and the translucent cover 23 from being detached from the circuit board 20 or the circuit board 20 from failing.

また透光カバー23の外面において照明体21で本体1の出力部4側を照らす光が通過する部分を除く部位を弾性体(弾性カバー27)で覆っているので、弾性体で照明体21から発する光を遮ることなく照明体21を一層保護できる。   Moreover, since the site | part except the part through which the light which illuminates the output part 4 side of the main body 1 with the illuminating body 21 passes on the outer surface of the translucent cover 23 is covered with the elastic body (elastic cover 27), The illuminator 21 can be further protected without blocking the emitted light.

さらに照明体21及び透光カバー23が突出する電池パック取付部18の突出部の上面部は本体1に対向する位置、即ち他のものと接触し難い位置にあるため、この点でも電動工具が落下した際等に照明体21や照光カバーが破損することを防止している。   Furthermore, since the upper surface portion of the protruding portion of the battery pack mounting portion 18 from which the illuminating body 21 and the translucent cover 23 protrude is located at a position facing the main body 1, that is, at a position where it is difficult to come into contact with other objects. The lighting body 21 and the illumination cover are prevented from being damaged when dropped.

ところで上記照明体21を構成する砲弾型LEDは電動工具に振動や衝撃が生じた際に回路基板20に接続される2本のリードフレーム25からなる足が折れる可能性がある。そこで以下の実施形態に示すように上記照明体21をチップ型LEDで構成しても良い。なお本実施形態では上記実施形態と同一の構成については同一の番号を付与し、重複する説明は省略する。   By the way, the bullet-type LED constituting the illuminating body 21 may break a leg formed of two lead frames 25 connected to the circuit board 20 when vibration or impact occurs in the electric tool. Therefore, as shown in the following embodiment, the illuminating body 21 may be constituted by a chip-type LED. In the present embodiment, the same components as those in the above embodiment are given the same numbers, and redundant descriptions are omitted.

図4乃至図6に示すように本実施形態の照明体21はチップ型LEDで構成されている。チップ型LEDは透明樹脂製でチップ型のパッケージング24内に発光素子(LEDチップ)及び該発光素子と回路基板20とを接続するワイヤを封止したもので、回路基板20の前後方向の中間部の上面に隙間なく取付けている。   As shown in FIGS. 4 to 6, the illuminating body 21 of the present embodiment is composed of a chip-type LED. The chip-type LED is made of a transparent resin, in which a light-emitting element (LED chip) and a wire connecting the light-emitting element and the circuit board 20 are sealed in a chip-type packaging 24. It is attached to the upper surface of the part without gaps.

透光カバー23は下方に開口するカップ状で透光性を有する樹脂等からなり、内部に前記チップ型LEDからなる照明体21が収まるように被せた状態でその下端部を直接回路基板20の上面に取付けている。透光カバー23の上面部における照明体21に対向する部位には上方に向けて突となる半球状の集光レンズ部28を形成してあり、該集光レンズ部28で照明体21から上側に照射された光を集光して該集光した光を上方に向けて照射できるようになっている。   The translucent cover 23 is made of a resin having a translucent cup shape that opens downward, and the lower end of the translucent cover 23 is directly attached to the circuit board 20 with the illuminating body 21 made of the chip-type LED inside. It is mounted on the top surface. A hemispherical condensing lens portion 28 that protrudes upward is formed at a portion of the upper surface portion of the translucent cover 23 that faces the illuminating body 21, and the condensing lens portion 28 is located above the illuminating body 21. It is possible to collect the light applied to the light and irradiate the condensed light upward.

また電池収納部3の前突出部22の上面部におけるグリップ2側の端部(後端部)の照明体21に対向する位置には孔部29を設けてあり、該孔部29には透光性を有して電池収納部3の上面部の一部を構成する透明カバー30を嵌め込んで取付けている。本例の透明カバーは透明樹脂等で形成されたレンズからなり、該レンズからなる透明カバー30の後端部は照明体21及び透光カバー23の上方に間隔を介して位置している。また透明カバー30の下面は水平な集光面31となっており、また透明カバー30の後面は下側程後方に位置するように傾斜した反射面32となっている。さらに透明カバー30の上面は前側程下方に位置するように傾斜し且つ下側に凹となる凹曲面としてあり、該凹曲面で拡散面33を構成している。ここで図6のように電池収納部3の前突出部22の上面とグリップ2の前面とでなすコーナーは弧状に湾曲しており、該湾曲したコーナー面に前記拡散面33が略面一に連続するように透明カバー30は孔部29に取付けられている。   In addition, a hole 29 is provided at a position facing the illuminating body 21 at the end (rear end) on the grip 2 side on the upper surface of the front projecting portion 22 of the battery housing portion 3. A transparent cover 30 that has light properties and constitutes a part of the upper surface portion of the battery housing portion 3 is fitted and attached. The transparent cover of this example is made of a lens formed of a transparent resin or the like, and the rear end portion of the transparent cover 30 made of the lens is located above the illuminating body 21 and the translucent cover 23 with a gap. The lower surface of the transparent cover 30 is a horizontal condensing surface 31, and the rear surface of the transparent cover 30 is a reflecting surface 32 that is inclined so as to be located rearward as the lower side. Furthermore, the upper surface of the transparent cover 30 is a concave curved surface that is inclined so as to be positioned downward on the front side and concave on the lower side, and the concave curved surface constitutes the diffusion surface 33. Here, as shown in FIG. 6, the corner formed by the upper surface of the front projecting portion 22 of the battery housing 3 and the front surface of the grip 2 is curved in an arc shape, and the diffusion surface 33 is substantially flush with the curved corner surface. The transparent cover 30 is attached to the hole 29 so as to be continuous.

上記照明体21から上側に向けて光を照射すると、この光は透光カバー23の集光レンズ部28を通って集光された後、上方の透明カバー30の集光面31に達し、この透明カバー30の集光面31で集光された後、一部は反射面32で全反射して拡散面33に達し、またその他は直接拡散面33に達する。そしてこのように拡散面33に達した光は同面で拡散して本体1の出力部4側に照射されることとなる。即ち本例では前記透明カバー30や透光カバー23の集光レンズ部28を照明体21から照射された光を屈性及び又は反射して目的とする照射範囲を照らす手段としている。   When light is irradiated upward from the illuminating body 21, the light is collected through the condensing lens portion 28 of the translucent cover 23 and then reaches the condensing surface 31 of the upper transparent cover 30. After being collected by the light collecting surface 31 of the transparent cover 30, a part of the light is totally reflected by the reflecting surface 32 and reaches the diffusing surface 33, and the other reaches the diffusing surface 33 directly. The light reaching the diffusion surface 33 in this way is diffused on the same surface and irradiated on the output unit 4 side of the main body 1. That is, in this example, the condensing lens portion 28 of the transparent cover 30 or the translucent cover 23 serves as means for illuminating a target irradiation range by bending and / or reflecting the light irradiated from the illuminating body 21.

照明体21を砲弾型LEDとした場合2本のリードフレーム25が折れる恐れがあるが、本実施形態では照明体21を回路基板20に実装したチップ型LEDで構成したのでこのような問題が生じない。また照明体21の回路基板20への取付けは容易で自動で行えるので、砲弾型LEDのように手作業で照明体21を取付ける必要がなくコストを削減できる。   When the illuminating body 21 is a bullet-type LED, the two lead frames 25 may be broken. However, in this embodiment, the illuminating body 21 is composed of a chip-type LED mounted on the circuit board 20, so that such a problem occurs. Absent. In addition, since the illuminating body 21 can be easily and automatically attached to the circuit board 20, it is not necessary to manually attach the illuminating body 21 like a bullet-type LED, and the cost can be reduced.

また照明体21の全部及び透光カバー23の全部を電池収納部3内に配置し、照明体21を透光カバー23と透明カバー30で二重に覆っているので照明体21を一層保護できる。   In addition, since all of the illuminating body 21 and all of the translucent cover 23 are disposed in the battery housing 3 and the illuminating body 21 is doubly covered with the translucent cover 23 and the transparent cover 30, the illuminating body 21 can be further protected. .

さらに本実施形態では照明体21に対向する位置に照明体21から照射された光を屈折及び又は反射して目的とする照射範囲を照らす手段を設けたので、照射角度の大きいチップ型LEDからなる照明体21から上側に照射された光を出来る限り減光させることなく、確実に目的の照射範囲を照らすことができる。   Furthermore, in the present embodiment, means for refracting and / or reflecting the light irradiated from the illuminating body 21 to illuminate the target irradiation range is provided at a position facing the illuminating body 21, so that the chip LED having a large irradiation angle is formed. The target irradiation range can be reliably illuminated without dimming the light irradiated upward from the illuminating body 21 as much as possible.

なお本実施形態では透光カバー23の照明体21に対向する部分に集光レンズ部28を設けたが、該集光レンズ部28を設けず図7のように透光カバー23の上面部を平坦にしても良いものとする。   In this embodiment, the condensing lens portion 28 is provided in the portion of the translucent cover 23 that faces the illuminating body 21. However, the condensing lens portion 28 is not provided, and the upper surface portion of the translucent cover 23 is provided as shown in FIG. It may be flat.

また以上説明した実施形態では照明体21をLEDで構成したが、照明体21は電球等のその他の光源であっても良いものとする。   In the embodiment described above, the illuminating body 21 is composed of LEDs, but the illuminating body 21 may be another light source such as a light bulb.

本発明の実施の形態の一例を示す断面図である。It is sectional drawing which shows an example of embodiment of this invention. 同上の側面図である。It is a side view same as the above. 図1の要部拡大図である。It is a principal part enlarged view of FIG. 他の実施の形態の一例を示す断面図である。It is sectional drawing which shows an example of other embodiment. 同上の側面図である。It is a side view same as the above. 図4の要部拡大図である。It is a principal part enlarged view of FIG. さらに他の実施の形態の一例を示す要部拡大断面図である。Furthermore, it is a principal part expanded sectional view which shows an example of other embodiment.

符号の説明Explanation of symbols

1 本体
2 グリップ
3 電池収納部
4 出力部
5 モータ
20 回路基板
21 照明体
23 透光カバー
DESCRIPTION OF SYMBOLS 1 Main body 2 Grip 3 Battery storage part 4 Output part 5 Motor 20 Circuit board 21 Illumination body 23 Translucent cover

Claims (6)

軸方向を前後方向とする筒状の本体にモータを内装し、該本体の前端部に前記モータにより駆動する出力部を設け、該本体から下側に向けてグリップを突設すると共にグリップの下端にグリップよりも前方に突出した前突出部を有する電池収納部を形成し、該電池収納部に回路基板を内装し、該回路基板に前記前突出部の上面部から本体の出力部側を照らす照明体と該照明体を覆う透光カバーを設け、前記照明体を電池収納部の前端と本体の前端とを結ぶ仮想線より後方に位置させることを特徴とする電動工具。 And interior of the motor axially to the tubular body to the front-rear direction, the output unit is provided which is driven by the motor to the front end of the body, the lower end of the grip as well as projecting the grip toward the lower side from the body A battery housing portion having a front projecting portion projecting forward from the grip is formed , a circuit board is embedded in the battery housing portion, and the circuit board illuminates the output portion side of the main body from the upper surface portion of the front projecting portion. An electric tool comprising: an illuminating body and a translucent cover that covers the illuminating body; and the illuminating body is positioned behind an imaginary line that connects a front end of a battery housing and a front end of a main body . 透光カバーの外面における前記照明体で本体の出力部側を照らす光が通過する部分を除く部位を弾性体で覆って成ることを特徴とする請求項1に記載の電動工具。   The electric tool according to claim 1, wherein a portion of the outer surface of the translucent cover excluding a portion through which light illuminating the output portion side of the main body passes is covered with an elastic body. 回路基板の前端部に砲弾型のLEDからなる照明体を照射方向を前斜め上方に向けて実装することを特徴とする請求項1又は請求項2に記載の電動工具。The electric tool according to claim 1 or 2, wherein an illuminating body made of a bullet-shaped LED is mounted on a front end portion of the circuit board with an irradiation direction directed obliquely upward in the front direction. 照明体及び透光カバーを前記前突出部の上面部の前端部から突出させることを特徴とする請求項1〜3のいずれかに記載の電動工具。The electric tool according to any one of claims 1 to 3, wherein the illuminating body and the translucent cover are protruded from a front end portion of an upper surface portion of the front protruding portion. 上記照明体を回路基板に実装したチップ型LEDとしたことを特徴とする請求項1又は請求項2に記載の電動工具。The power tool according to claim 1 or 2, wherein the illumination body is a chip type LED mounted on a circuit board. 上記照明体に対向する位置に照明体から照射された光を屈折及び又は反射して目的とする照射範囲を照らす手段を設けて成ることを特徴とする請求項1、請求項2、又は請求項5に記載の電動工具。A means for illuminating a target irradiation range by refracting and / or reflecting light emitted from the illuminating body at a position facing the illuminating body is provided. 5. The electric tool according to 5.
JP2005333285A 2005-11-17 2005-11-17 Electric tool Active JP4577192B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4894665B2 (en) * 2007-07-26 2012-03-14 パナソニック電工株式会社 Portable electric tool
JP5053791B2 (en) * 2007-10-15 2012-10-17 株式会社マキタ Impact tool

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0379279U (en) * 1989-12-06 1991-08-13
JPH1034566A (en) * 1996-07-24 1998-02-10 Kyushu Hitachi Maxell Ltd Power tool with lighting
JPH1044064A (en) * 1996-07-27 1998-02-17 Kyushu Hitachi Maxell Ltd Motor tool with illumination
JP2002307330A (en) * 2001-04-16 2002-10-23 Makita Corp Lighting for electric power tool
JP2003222540A (en) * 2002-01-31 2003-08-08 Nippon Seiki Co Ltd Lighting system
JP2003245875A (en) * 2002-02-25 2003-09-02 Makita Corp Battery-operated electric tool
JP2005169533A (en) * 2003-12-09 2005-06-30 Matsushita Electric Works Ltd Rotating tool

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0379279U (en) * 1989-12-06 1991-08-13
JPH1034566A (en) * 1996-07-24 1998-02-10 Kyushu Hitachi Maxell Ltd Power tool with lighting
JPH1044064A (en) * 1996-07-27 1998-02-17 Kyushu Hitachi Maxell Ltd Motor tool with illumination
JP2002307330A (en) * 2001-04-16 2002-10-23 Makita Corp Lighting for electric power tool
JP2003222540A (en) * 2002-01-31 2003-08-08 Nippon Seiki Co Ltd Lighting system
JP2003245875A (en) * 2002-02-25 2003-09-02 Makita Corp Battery-operated electric tool
JP2005169533A (en) * 2003-12-09 2005-06-30 Matsushita Electric Works Ltd Rotating tool

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