JP2006000971A - Portable power tool - Google Patents

Portable power tool Download PDF

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Publication number
JP2006000971A
JP2006000971A JP2004179918A JP2004179918A JP2006000971A JP 2006000971 A JP2006000971 A JP 2006000971A JP 2004179918 A JP2004179918 A JP 2004179918A JP 2004179918 A JP2004179918 A JP 2004179918A JP 2006000971 A JP2006000971 A JP 2006000971A
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light
led
buffer member
circuit board
printed circuit
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JP2004179918A
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JP4111173B2 (en
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Hideki Shimizu
秀規 清水
Toshiharu Ohashi
敏治 大橋
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION 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
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B25F5/021—Construction 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)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a miniaturized and weight-reduced portable power tool while protecting a printed circuit board and LEDs from impact from an outer enclosure part and to make an LED display easy to see by preventing a leakage of light to an adjacent light transmitting part. <P>SOLUTION: The portable power tool 6 is provided with: a drive part 2 for transmitting the rotation of a motor 1; a switch part 4 for instructing the rotation of the motor 1; a housing 5 for covering the motor 1, the drive part 2 and the switch part 4 respectively; and a display setting part 9 for displaying the state and setting of the power tool 6 by the LEDs on the printed circuit board 10. The outer enclosure part 5a for covering the display setting part 9 is provided with light transmitting parts 11 through which light is transmitted. An insulating buffer member 13 is interposed in a space S provided between the printed circuit board 10 and the outer enclosure part 5a, and the buffer member 13 is provided with opening parts 15 for allowing light from each LED 14 to reach only the light transmitting part 11 of the outer enclosure part 5a facing this LED 14. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、可搬式電動工具に関し、詳しくはボルト、ナット、或いは木ネジ締め等の締めつけ作業、及び金工、木工、モルタル、コンクリート等の穴あけ作業、金工、木工等の切断作業に使用する手持ち式の電動工具において、ＬＥＤ表示を行なう表示設定部を設ける技術に関するものである。   The present invention relates to a portable power tool, and more specifically, a hand-held type used for tightening work such as bolts, nuts or wood screws, drilling work for metalwork, woodworking, mortar, concrete, etc., cutting work for metalworking, woodworking, etc. This electric tool relates to a technique for providing a display setting unit for performing LED display.

従来、モータの回転数や、回転制御を行なう際の、作業完了状態の表示や、締め付け力の設定や、充電式であれば、電池の残容量等の表示は、プリント基板上に実装されたＬＥＤ（発光ダイオード）からの光を外郭部の光透過部に透過させるようにしている。ＬＥＤは振動やＯＮ／ＯＦＦ点灯の繰り返しに強いことから、可搬式電動工具の分野にも広く使用されている（例えば、特許文献１参照）。   Conventionally, the display of the work completion status, the setting of the tightening force, and the remaining battery capacity, etc., if rechargeable, were mounted on the printed circuit board when performing the rotation control of the motor. The light from the LED (light emitting diode) is transmitted through the outer light transmitting portion. LEDs are widely used in the field of portable power tools because they are resistant to vibration and repeated ON / OFF lighting (see, for example, Patent Document 1).

しかし、ＬＥＤ１４同士が互いに近接している場合は、隣の光透過部１１へ光が漏れてしまい、表示が見え難くなる。その対策として、図７に示すように、外郭部５ａの光透過部１１周囲より壁状のリブ１６´をプリント基板１０近傍まで突出させる方法、もしくは、図８に示すディスクリートのＬＥＤ１４であれば、外郭部５ａの光透過部１１周囲より壁状のリブ１６´´をＬＥＤ１４を覆う位置まで突出させる方法等がある。なお図中の２１は表皮フィルムである。   However, when the LEDs 14 are close to each other, light leaks to the adjacent light transmission part 11 and the display becomes difficult to see. As a countermeasure, as shown in FIG. 7, a method of projecting the wall-shaped rib 16 ′ from the periphery of the light transmitting portion 11 of the outer portion 5 a to the vicinity of the printed circuit board 10, or the discrete LED 14 shown in FIG. There is a method in which a wall-like rib 16 ″ protrudes from the periphery of the light transmitting portion 11 of the outer portion 5 a to a position covering the LED 14. In the figure, 21 is a skin film.

ところが、転倒や落下等により外郭部５ａに衝撃がかかった場合は、外郭部５ａが変形してプリント基板１０もしくはＬＥＤ１４を破壊する恐れがある。このため従来では外郭部５ａの強度、プリント基板１０の強度、ＬＥＤ１４の接着強度をそれぞれ高める必要があり、小型軽量化が困難となっていた。
特開２００３−２７５９７４号公報 However, when an impact is applied to the outer portion 5a due to a fall, a drop, or the like, the outer portion 5a may be deformed to destroy the printed circuit board 10 or the LED 14. For this reason, conventionally, it is necessary to increase the strength of the outer portion 5a, the strength of the printed circuit board 10, and the bonding strength of the LEDs 14, and it has been difficult to reduce the size and weight.
JP 2003-275974 A

本発明は上記の従来の問題点に鑑みて発明したものであって、外郭部からの衝撃を緩衝部材で吸収することでプリント基板及びＬＥＤを保護でき、これにより小型軽量化が容易となり、しかも緩衝部材によって隣の光透過部へ光が漏れる現象を防止でき、表示設定部のＬＥＤ表示を見やすくした可搬式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-described conventional problems, and can absorb the shock from the outer portion with a buffer member to protect the printed circuit board and the LED, thereby facilitating the reduction in size and weight. It is an object of the present invention to provide a portable electric tool that can prevent a phenomenon in which light leaks to an adjacent light transmitting portion by a buffer member and makes an LED display of a display setting portion easy to see.

前記課題を解決するために本発明にあっては、モータ１の回転を伝達する駆動部２と、モータ１の回転を指示するスイッチ部４と、上記モータ１、駆動部２、スイッチ部４をそれぞれ覆うハウジング５と、電動工具６の状態や設定をプリント基板１０上のＬＥＤ１４にて表示する表示設定部９とを具備した可搬式電動工具であって、上記表示設定部９を覆う外郭部５ａに光が透過する光透過部１１が設けられ、プリント基板１０と外郭部５ａの間に設けたスペースＳに絶縁性の緩衝部材１３を介在させると共にこの緩衝部材１３にＬＥＤ１４からの光を該ＬＥＤ１４と対向する外郭部５ａの光透過部１１のみに届くようにするための開口部１５を設けたことを特徴としている。   In order to solve the above problems, in the present invention, the drive unit 2 for transmitting the rotation of the motor 1, the switch unit 4 for instructing the rotation of the motor 1, the motor 1, the drive unit 2, and the switch unit 4 are provided. A portable electric tool including a housing 5 that covers each of them, and a display setting unit 9 that displays the state and settings of the electric tool 6 with the LEDs 14 on the printed circuit board 10, and an outer portion 5 a that covers the display setting unit 9. A light transmitting portion 11 through which light is transmitted is provided, and an insulating buffer member 13 is interposed in a space S provided between the printed board 10 and the outer portion 5a, and light from the LED 14 is passed through the buffer member 13 to the LED 14 And an opening 15 for reaching only the light transmitting portion 11 of the outer shell portion 5a facing the outer shell 5a.

このような構成とすることで、外郭部５ａからの衝撃を緩衝部材１３が吸収し、プリント基板１０及びＬＥＤ１４を保護できるので、従来のようにプリント基板１０もしくはＬＥＤ１４の破壊を防止するために外郭部５ａの強度、プリント基板１０の強度、ＬＥＤ１４の接着強度をそれぞれ高める必要がなくなり、小型軽量化が容易となる。また緩衝部材１３の開口部１５はＬＥＤ１４の光が隣接する光透過部１１に届かないようにして、隣の光透過部１１へ光が漏れる現象（ＬＥＤ表示の横映り）を防ぐことができるので、ＬＥＤ表示が見やすくなる。   With this configuration, the shock absorbing member 13 can absorb the shock from the outer portion 5a and protect the printed circuit board 10 and the LED 14, so that the outer surface can be prevented in order to prevent the printed circuit board 10 or the LED 14 from being destroyed as in the conventional case. There is no need to increase the strength of the portion 5a, the strength of the printed circuit board 10, and the adhesive strength of the LED 14, and it is easy to reduce the size and weight. In addition, the opening 15 of the buffer member 13 prevents the light from the LED 14 from reaching the adjacent light transmitting portion 11 and prevents light from leaking to the adjacent light transmitting portion 11 (showing the LED display). LED display becomes easy to see.

また、上記外郭部５ａの光透過部１１周囲より壁状のリブ１６が突設されると共に、緩衝部材１３の開口部１５の大きさを外郭部５ａの光透過部１１の開口領域以下とするのが好ましく、この場合、壁状のリブ１６によって、転倒や落下に対する外郭部５ａの耐久性を確保できると共にＬＥＤ表示の横映りを効果的に防止できるようになる。   Further, wall-shaped ribs 16 project from the periphery of the light transmission part 11 of the outer shell part 5a, and the size of the opening 15 of the buffer member 13 is set to be equal to or smaller than the opening region of the light transmission part 11 of the outer shell part 5a. In this case, the wall-shaped ribs 16 can ensure the durability of the outer portion 5a against falling or dropping, and can effectively prevent the reflection of the LED display.

また、上記外郭部５ａと緩衝部材１３との間に隙間Ｇを設けるのが好ましく、この場合、外郭部５ａと緩衝部材１３の間のスペースＳが隙間Ｇの分だけさらに大きくなるので、外郭部５ａが変形した場合にプリント基板１０もしくはＬＥＤ１４が破損するのを確実に防止できるようになる。   Further, it is preferable to provide a gap G between the outer shell part 5a and the buffer member 13, and in this case, the space S between the outer shell part 5a and the buffer member 13 is further increased by the gap G. When the 5a is deformed, the printed circuit board 10 or the LED 14 can be reliably prevented from being damaged.

本発明に係る可搬式電動工具にあっては、外郭部からの衝撃を緩衝部材が吸収し、プリント基板及びＬＥＤを保護でき、小型軽量化が容易になると共に、緩衝部材によって隣の光透過部へ光が漏れる現象（ＬＥＤ表示の横映り）を防止でき、ＬＥＤ表示を見やすくした表示設定部が得られるものである。   In the portable power tool according to the present invention, the shock absorbing member absorbs the impact from the outer portion, the printed circuit board and the LED can be protected, and it is easy to reduce the size and weight. Thus, a phenomenon in which light leaks (a side effect of LED display) can be prevented, and a display setting unit that makes it easy to see the LED display can be obtained.

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。   Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

図２は本発明の可搬式電動工具６（以下「電動工具６」と略称する。）の概略図、図３は斜視図、図４は要部拡大図を示す。   FIG. 2 is a schematic view of a portable power tool 6 (hereinafter simply referred to as “power tool 6”) of the present invention, FIG. 3 is a perspective view, and FIG.

この電動工具６は、インパクト工具、電動ドリルドライバー等であり、モータ１と、モータ１の回転を減速伝達する駆動部２と、駆動部２の回転出力を出力する出力軸３と、モータ１の回転を指示するスイッチ部４と、モータ１の回転信号を出力する回転センサ１７と、回転センサ１７からの信号及びスイッチ部４によりモータ１の回転を制御する制御回路１８と、電動工具６の状態や設定をプリント基板１０上のＬＥＤ１４にて表示するための表示設定部９とを備えている。   The electric tool 6 is an impact tool, an electric drill driver, or the like. The motor 1, the drive unit 2 that transmits the rotation of the motor 1 at a reduced speed, the output shaft 3 that outputs the rotation output of the drive unit 2, and the motor 1 Switch unit 4 for instructing rotation, rotation sensor 17 for outputting a rotation signal of the motor 1, control circuit 18 for controlling rotation of the motor 1 by the signal from the rotation sensor 17 and the switch unit 4, and the state of the electric tool 6 And a display setting unit 9 for displaying the setting on the LED 14 on the printed circuit board 10.

ハウジング５は、手で把持するグリップ部７にスイッチ部４のトリガー４ａが設けられ、グリップ部７の上端部に、モータ１、駆動部２、出力軸３の一部が内装されたシリンダー部８が設けられ、グリップ部７の下端部に電池パック装着部１９が着脱自在に取り付けられている。図中の２０は電池パック装着部１９の着脱操作ボタンである。   The housing 5 is provided with a trigger portion 4a of the switch portion 4 in a grip portion 7 to be gripped by hand, and a cylinder portion 8 in which a motor 1, a drive portion 2, and a part of an output shaft 3 are partially built in an upper end portion of the grip portion 7. The battery pack mounting portion 19 is detachably attached to the lower end portion of the grip portion 7. Reference numeral 20 in the figure denotes an attaching / detaching operation button of the battery pack mounting portion 19.

本例では、表示設定部９及び制御回路１８は、電池パック装着部１９に近いハウジング５の前方突出部５ｂに配置されているが、例えばモータ１後方のハウジング５側に配置してもよいものである。また電動工具６のモードを切り換える操作部１２（図３）を表示設定部９の領域内に設けているが、表示設定部９とは別の位置に設けてもよいものである。   In this example, the display setting unit 9 and the control circuit 18 are disposed on the front protruding portion 5b of the housing 5 close to the battery pack mounting portion 19, but may be disposed on the housing 5 side behind the motor 1, for example. It is. Moreover, although the operation part 12 (FIG. 3) which switches the mode of the electric tool 6 is provided in the area | region of the display setting part 9, you may provide in the position different from the display setting part 9. FIG.

上記制御回路１８は、モータ１の最大回転数を制御するためのマイクロコンピュータで構成されており、制御回路１８内のプリント基板１０上にＬＥＤ１４が実装されている。なお図１中のＤはＬＥＤ１４の照射範囲を示している。   The control circuit 18 is composed of a microcomputer for controlling the maximum rotation speed of the motor 1, and the LED 14 is mounted on the printed circuit board 10 in the control circuit 18. In addition, D in FIG. 1 has shown the irradiation range of LED14.

上記表示設定部９を覆う外郭部５ａ（表示パネル）は、図１に示すように、光が透過する光透過部１１を備えている。本例では外郭部５ａはハウジング５の一部を構成している。この外郭部５ａは遮光性材料からなり、ＬＥＤ１４と対向する部位が開口しており、この開口が光透過部１１となっている。   As shown in FIG. 1, the outer portion 5a (display panel) that covers the display setting unit 9 includes a light transmission unit 11 through which light passes. In this example, the outer portion 5 a constitutes a part of the housing 5. The outer portion 5 a is made of a light-shielding material, and a portion facing the LED 14 is opened. This opening is the light transmitting portion 11.

ここで、本発明においては、上記外郭部５ａはプリント基板１０から所定のスペースＳをあけて配置され、このスペースＳ内に絶縁性の緩衝部材１３が介在されている。絶縁性の緩衝部材１３は例えばシリコンゴムからなり、振動，衝撃等からプリント基板１０及びＬＥＤ１４を保護する働きをする。この緩衝部材１３にはＬＥＤ１４からの光を該ＬＥＤ１４と対向する外郭部５ａの光透過部１１のみに届くようにするための開口部１５が設けられている。この開口部１５はＬＥＤ１４からの光が隣接する光透過部１１には届かないような大きさを有している。つまり、プリント基板１０上のＬＥＤ１４からの光をプリント基板１０の垂直方向に光を遮ることのないように緩衝部材１３の開口部１５が配置されており、更にその垂直方向には、表示設定部９の外郭部５ａの光透過部１１が配置されており、これによりＬＥＤ１４の光が光透過部１１を介して外へ届くようになっている。さらに、制御回路１８へのゴミ等の混入を防ぐために、外郭部５ａの光透過部１１には透明もしくは半透明の表皮フィルム２１、もしくはラベルが貼着してある。   Here, in the present invention, the outer portion 5 a is disposed with a predetermined space S from the printed board 10, and an insulating buffer member 13 is interposed in the space S. The insulating buffer member 13 is made of, for example, silicon rubber and functions to protect the printed circuit board 10 and the LED 14 from vibration, impact, and the like. The buffer member 13 is provided with an opening 15 for allowing the light from the LED 14 to reach only the light transmitting portion 11 of the outer portion 5 a facing the LED 14. The opening 15 has such a size that the light from the LED 14 does not reach the adjacent light transmitting portion 11. That is, the opening 15 of the buffer member 13 is arranged so as not to block the light from the LED 14 on the printed circuit board 10 in the vertical direction of the printed circuit board 10, and further, in the vertical direction, the display setting unit 9, the light transmission part 11 of the outer shell part 5a is arranged so that the light of the LED 14 can reach outside through the light transmission part 11. Further, in order to prevent dust and the like from entering the control circuit 18, a transparent or translucent skin film 21 or a label is attached to the light transmitting portion 11 of the outer portion 5a.

ここで、上記外郭部５ａとプリント基板１０間のスペースＳは、表示部の外郭部５ａが落下や振動等により変形する恐れのある量以上、つまり変形量相当の幅とされる。本例では、外郭部５ａと緩衝部材１３との間に隙間Ｇが生じるように、緩衝部材１３の厚みが設定されている。なお、スペースＳの幅は緩衝部材１３の厚み以上であればよく、外郭部５ａと緩衝部材１３との間の隙間Ｇは必ずしも設ける必要はない。   Here, the space S between the outer portion 5a and the printed circuit board 10 is equal to or larger than the amount that the outer portion 5a of the display unit may be deformed due to dropping or vibration, that is, a width corresponding to the deformation amount. In this example, the thickness of the buffer member 13 is set so that a gap G is generated between the outer shell 5 a and the buffer member 13. Note that the width of the space S may be equal to or greater than the thickness of the buffer member 13, and the gap G between the outer portion 5 a and the buffer member 13 is not necessarily provided.

しかして、プリント基板１０と外郭部５ａの間に設けたスペースＳに絶縁性の緩衝部材１３を介在させたので、外郭部５ａからの衝撃を緩衝部材１３が吸収し、プリント基板１０及びＬＥＤ１４を保護できる。従って、従来のようにプリント基板１０もしくはＬＥＤ１４の破壊を防止するために外郭部５ａの強度、プリント基板１０の強度、ＬＥＤ１４の接着強度をそれぞれ高める必要がなくなり、小型軽量化が容易となる。また緩衝部材１３に設けた開口部１５を介してＬＥＤ１４からの光をこれと対向する外郭部５ａの光透過部１１のみに届くようにしたので、緩衝部材１３の開口部１５によってＬＥＤ１４の光が遮られることがなく、またＬＥＤ１４の光が隣接する光透過部１１に届かないように開口部１５の大きさを設定することで、隣の光透過部１１へ光が漏れる現象（ＬＥＤ表示の横映り）を防ぐことができ、表示を見えやすくすることができる。   Thus, since the insulating buffer member 13 is interposed in the space S provided between the printed board 10 and the outer portion 5a, the shock absorbing member 13 absorbs the shock from the outer portion 5a, and the printed board 10 and the LED 14 are removed. Can protect. Accordingly, it is not necessary to increase the strength of the outer portion 5a, the strength of the printed circuit board 10, and the bonding strength of the LEDs 14 in order to prevent destruction of the printed circuit board 10 or the LED 14 as in the prior art, and the size and weight can be easily reduced. Further, since the light from the LED 14 reaches only the light transmitting portion 11 of the outer shell portion 5a opposed to the light through the opening 15 provided in the buffer member 13, the light of the LED 14 is transmitted by the opening 15 of the buffer member 13. By setting the size of the opening 15 so that the light of the LED 14 does not reach the adjacent light transmitting portion 11 and is not blocked, the phenomenon of light leaking to the adjacent light transmitting portion 11 (the side of the LED display) The display can be made easier to see.

なお、前記実施形態では、外郭部５ａの光透過部１１を図１に示すような単なる開口（孔）で形成したが、これに限らず、図５に示すように、光透過部１１周囲から壁状のリブ１６を突設するようにしてもよい。図中のＤはＬＥＤ１４の照射範囲を示している。この壁状のリブ１６によって、転倒や落下に対する外郭部５ａの耐久性を確保できるようになる。また本例では、図１の場合と同様、ＬＥＤ１４の光の照射範囲が、隣接するＬＥＤ１４の垂直方向にある外郭部５ａの光透過部１１へ届かないように、緩衝部材１３を配置すると共に、緩衝部材１３の開口部１５の大きさを外郭部５ａの光透過部１１の開口領域以下としている。これにより、ＬＥＤ表示の横映りを効果的に防止でき、表示を一層見えやすくすることができる。さらに本例では、壁状のリブ１６の下端部と緩衝部材１３との間に隙間Ｇを設けている。これにより、外郭部５ａと緩衝部材１３の間のスペースＳは緩衝部材１３の厚みよりも隙間Ｇ分だけ大きくなり、衝撃によって図６の矢印Ａで示す方向に外郭部５ａが変形した場合でも、壁状のリブ１６がプリント基板１０やＬＥＤ１４に接触することがなく、プリント基板１０もしくはＬＥＤ１４が破損するのを確実に防止できるようになる。   In the above embodiment, the light transmitting portion 11 of the outer portion 5a is formed with a simple opening (hole) as shown in FIG. 1, but not limited to this, as shown in FIG. You may make it project the wall-shaped rib 16. FIG. D in the figure indicates the irradiation range of the LED 14. The wall-like rib 16 makes it possible to ensure the durability of the outer portion 5a against falling or dropping. Further, in this example, as in the case of FIG. 1, the buffer member 13 is disposed so that the light irradiation range of the LED 14 does not reach the light transmitting portion 11 of the outer portion 5 a in the vertical direction of the adjacent LED 14. The size of the opening 15 of the buffer member 13 is set to be equal to or smaller than the opening area of the light transmitting portion 11 of the outer portion 5a. Thereby, the side effect of the LED display can be effectively prevented, and the display can be more easily seen. Further, in this example, a gap G is provided between the lower end portion of the wall-shaped rib 16 and the buffer member 13. Thereby, the space S between the outer shell part 5a and the buffer member 13 becomes larger by the gap G than the thickness of the buffer member 13, and even when the outer shell part 5a is deformed in the direction indicated by the arrow A in FIG. The wall-like ribs 16 do not come into contact with the printed circuit board 10 or the LEDs 14, and the printed circuit board 10 or the LEDs 14 can be reliably prevented from being damaged.

本発明に係る可搬式の電動工具６は、ＬＥＤ表示を行なう表示設定部９を備えたものに広く適用されるものである。   The portable electric tool 6 according to the present invention is widely applied to those equipped with a display setting unit 9 that performs LED display.

本発明の一実施形態の表示設定部を説明する断面図である。It is sectional drawing explaining the display setting part of one Embodiment of this invention. 同上の表示設定部を備えた可搬式電動工具の概略側面図である。It is a schematic side view of the portable electric tool provided with the display setting part same as the above. 同上の可搬式電動工具の斜視図である。It is a perspective view of the portable electric tool same as the above. 同上の可搬式電動工具の下半部の断面図である。It is sectional drawing of the lower half part of the portable electric tool same as the above. 他の実施形態の断面図である。It is sectional drawing of other embodiment. 同上の外郭部が変形した場合の説明図である。It is explanatory drawing when the outline part same as the above changes. 従来例の表示設定部の説明図である。It is explanatory drawing of the display setting part of a prior art example. 他の従来例の表示設定部の説明図である。It is explanatory drawing of the display setting part of another prior art example.

符号の説明Explanation of symbols

１ モータ
２ 駆動部
４ スイッチ部
５ ハウジング
５ａ 外郭部
６ 電動工具
９ 表示設定部
１０ プリント基板
１１ 光透過部
１３ 緩衝部材
１４ ＬＥＤ
１５ 開口部
１６ リブ
Ｓ スペース
Ｇ 隙間 DESCRIPTION OF SYMBOLS 1 Motor 2 Drive part 4 Switch part 5 Housing 5a Outer part 6 Electric tool 9 Display setting part 10 Printed circuit board 11 Light transmission part 13 Buffer member 14 LED
15 Opening 16 Rib S Space G Gap

Claims (3)

モータの回転を伝達する駆動部と、モータの回転を指示するスイッチ部と、上記モータ、駆動部、スイッチ部をそれぞれ覆うハウジングと、電動工具の状態や設定をプリント基板上のＬＥＤにて表示する表示設定部とを具備した可搬式電動工具であって、上記表示設定部を覆う外郭部に光が透過する光透過部が設けられ、プリント基板と外郭部の間に設けたスペースに絶縁性の緩衝部材を介在させると共にこの緩衝部材にＬＥＤからの光を該ＬＥＤと対向する外郭部の光透過部のみに届くようにするための開口部を設けたことを特徴とする可搬式電動工具。   A drive unit that transmits the rotation of the motor, a switch unit that instructs the rotation of the motor, a housing that covers each of the motor, the drive unit, and the switch unit, and the state and settings of the power tool are displayed by LEDs on the printed circuit board. A portable electric tool comprising a display setting unit, wherein a light transmitting part through which light is transmitted is provided in an outer part covering the display setting part, and an insulating property is provided in a space provided between the printed circuit board and the outer part. A portable electric tool characterized in that a buffer member is interposed and an opening is provided in the buffer member so that light from the LED reaches only the light transmitting portion of the outer portion facing the LED. 上記外郭部の光透過部周囲より壁状のリブが突設されると共に、緩衝部材の開口部の大きさを外郭部の光透過部の開口領域以下としたことを特徴とする請求項１記載の可搬式電動工具。   The wall-shaped rib protrudes from the periphery of the light transmission part of the outer shell part, and the size of the opening of the buffer member is set to be equal to or smaller than the opening region of the light transmission part of the outer shell part. Portable electric tool. 上記外郭部と緩衝部材との間に隙間を設けたことを特徴とする請求項１又は請求項２記載の可搬式電動工具。

The portable electric tool according to claim 1, wherein a gap is provided between the outer shell portion and the buffer member.

JP2004179918A 2004-06-17 2004-06-17 Portable electric tool Expired - Lifetime JP4111173B2 (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007283447A (en) * 2006-04-18 2007-11-01 Makita Corp Power tool
JP2008036753A (en) * 2006-08-04 2008-02-21 Makita Corp Power tool and protector therefor
JP2008279564A (en) * 2007-05-11 2008-11-20 Hitachi Koki Co Ltd Electric tool
JP2011000654A (en) * 2009-06-16 2011-01-06 Hitachi Koki Co Ltd Power tool
JP2011005555A (en) * 2009-06-23 2011-01-13 Hitachi Koki Co Ltd Power tool
US7882900B2 (en) 2007-08-29 2011-02-08 Positec Power Tools (Suzhou) Co., Ltd Power tool with signal generator
JP2011161580A (en) * 2010-02-11 2011-08-25 Hitachi Koki Co Ltd Impact tool
JP2013013970A (en) * 2011-07-04 2013-01-24 Makita Corp Sealing structure of operation panel in electric power tool
JP2015023866A (en) * 2014-09-03 2015-02-05 日立工機株式会社 Electric working machine
JP2017104969A (en) * 2015-11-26 2017-06-15 株式会社マキタ Electric power tool
JP2018202536A (en) * 2017-06-02 2018-12-27 マックス株式会社 tool
US10478950B2 (en) 2015-11-26 2019-11-19 Makita Corporation Power tool
GB2617929A (en) * 2020-08-26 2023-10-25 Snap On Incorporated PCB with integrated switches

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007283447A (en) * 2006-04-18 2007-11-01 Makita Corp Power tool
JP2008036753A (en) * 2006-08-04 2008-02-21 Makita Corp Power tool and protector therefor
JP2008279564A (en) * 2007-05-11 2008-11-20 Hitachi Koki Co Ltd Electric tool
US7882900B2 (en) 2007-08-29 2011-02-08 Positec Power Tools (Suzhou) Co., Ltd Power tool with signal generator
US7882899B2 (en) 2007-08-29 2011-02-08 Positec Power Tools (Suzhou) Co., Ltd Power tool having control system for changing rotational speed of output shaft
JP2011000654A (en) * 2009-06-16 2011-01-06 Hitachi Koki Co Ltd Power tool
JP2011005555A (en) * 2009-06-23 2011-01-13 Hitachi Koki Co Ltd Power tool
JP2011161580A (en) * 2010-02-11 2011-08-25 Hitachi Koki Co Ltd Impact tool
JP2013013970A (en) * 2011-07-04 2013-01-24 Makita Corp Sealing structure of operation panel in electric power tool
JP2015023866A (en) * 2014-09-03 2015-02-05 日立工機株式会社 Electric working machine
JP2017104969A (en) * 2015-11-26 2017-06-15 株式会社マキタ Electric power tool
US10478950B2 (en) 2015-11-26 2019-11-19 Makita Corporation Power tool
US10906163B2 (en) 2015-11-26 2021-02-02 Makita Corporation Power tool
JP2018202536A (en) * 2017-06-02 2018-12-27 マックス株式会社 tool
GB2617929A (en) * 2020-08-26 2023-10-25 Snap On Incorporated PCB with integrated switches

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