WO2014006438A1 - Slide switch for electric tool - Google Patents

Slide switch for electric tool Download PDF

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Publication number
WO2014006438A1
WO2014006438A1 PCT/IB2012/001483 IB2012001483W WO2014006438A1 WO 2014006438 A1 WO2014006438 A1 WO 2014006438A1 IB 2012001483 W IB2012001483 W IB 2012001483W WO 2014006438 A1 WO2014006438 A1 WO 2014006438A1
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WO
WIPO (PCT)
Prior art keywords
slide
positioning unit
positioning
inclined surface
recess
Prior art date
Application number
PCT/IB2012/001483
Other languages
French (fr)
Japanese (ja)
Other versions
WO2014006438A8 (en
Inventor
雅理 村松
Original Assignee
パナソニック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Priority to EP12880607.2A priority Critical patent/EP2759380B1/en
Priority to CN201280045529.4A priority patent/CN103826804B/en
Publication of WO2014006438A1 publication Critical patent/WO2014006438A1/en
Publication of WO2014006438A8 publication Critical patent/WO2014006438A8/en

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Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H01H15/06—Movable parts; Contacts mounted thereon
    • H01H15/10—Operating parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/50—Driving mechanisms, i.e. for transmitting driving force to the contacts with indexing or locating means, e.g. indexing by ball and spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/52—Driving mechanisms, i.e. for transmitting driving force to the contacts with means to ensure stopping at intermediate operative positions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner

Definitions

  • the present invention relates to a slide switch for an electric tool.
  • FIG. 1 An example of a positioning mechanism in the slide switch for this application is shown in FIG.
  • the slide portion 3 disposed between the pair of rails 2 is provided with elastic arm portions 32a and 32b, and a protrusion 31 is provided on each outer end surface of each arm portion 32a and 32b.
  • reference numeral 33 denotes a spring that urges each protrusion 31 toward the rail 2 by bringing the spring pieces 33a and 33b at both ends thereof into contact with the arm portions 32a and 32b.
  • the convex part 22 and the recessed part 23 are alternately formed in the surface at the side of the slide part 3 of each rail 2 along the longitudinal direction (slide direction of the slide part 3) of the rail 2, and the slide part 3 is formed.
  • the protrusion 31 moves from the concave portion 23 of the rail 2 over the convex portion 22 to the adjacent concave portion 23.
  • the protrusion 31 is positioned by being positioned in the recess 23.
  • the shape of each recess 23 in the rail 2 is the same. That is, as shown in FIG. 5, the concave portion 23 has a bottom surface 26 and inclined surfaces 24 and 25 from the bottom surface 26 toward the convex portion 22, but the plurality of concave portions 23 are all in the same shape. It was. JP 07-335073 A
  • the protrusion 31 does not stop at the adjacent recess 23, and as shown in FIG. May have moved up to the convex portion 22 or moved to the adjacent concave portion 23.
  • the present invention includes a pair of rails and a slide portion that slides between the rails, the rail having a positioning region that positions the slide portion in a slide direction,
  • the slicing portion is a slide switch for an electric tool that has a protrusion that is urged toward the rail side and is in contact with the positioning region, and the positioning region includes a plurality of rows formed in a row on the slide portion side of the rail.
  • the inclination angle of the riser inclined surface of a positioning unit is characterized in that less than the inclination angle of the riser inclined surface of the positioning unit adjacent in the direction of the front end of the positioning unit.
  • the slide operation that moves the projection from the concave portion constituting the positioning unit two units before the positioning unit at the final position to the concave portion constituting the positioning unit one unit before from the positioning unit at the final position is What can be done with less force than the slide operation that moves the protrusion from the recess that forms the positioning unit one unit before the positioning unit at the final position to the recess that forms the positioning unit at the final position It is.
  • the switching can be performed step by step in order.
  • FIG. 3 shows operations in an example of an embodiment of the present invention, and (a) to (e) are partially enlarged views. It is a perspective view same as the above. It is a perspective view of the electric tool provided with the slide switch same as the above. It is the elements on larger scale which show the operation
  • the slide switch 1 for an electric tool in the present embodiment includes a pair of rails 2 and a slide portion 3 that slides between the rails 2.
  • the rail 2 has a positioning region for positioning the slide portion 3 in the sliding direction, and the slide portion 3 has a protrusion 31 that is biased toward the rail 2 and contacts the positioning region.
  • the positioning region includes a plurality of recesses 23 formed in a line on the slide portion side of the rail 2, and has at least three positioning units formed around one recess 23.
  • the positioning unit includes an ascending inclined surface positioned at the tip in the sliding direction with respect to one recess 23 and a descending inclined surface positioned at the rear end in the sliding direction. Then, the inclination angle ⁇ of the ascending inclined surface 27 of the positioning unit two or more units before the positioning unit at the final position of the tip end in the sliding direction is the ascending inclined surface 25 of the positioning unit adjacent in the leading end direction of the positioning unit. Is smaller than the inclination angle ⁇ .
  • FIG. 2 shows the entire slide switch 1.
  • the slide switch 1 includes a pair of rails 2 and a slide portion 3 that slides between the rails 2. Each rail 2 guides the movement of the slide part 3 and reciprocates in one direction, and positions the slide 2 with respect to the slide.
  • the two rails 2 are not shown (for example, a housing of an electric tool). Are connected to each other. Both rails 2 arranged in parallel and parallel have a positioning region for positioning the slide part 3 in the slide direction.
  • the positioning region is formed on the rails 2 so that four convex portions 22 projecting in directions facing each other (on the slide portion 3 side) are continuous in the slide direction of the slide portion 3.
  • the recessed part 23 is formed between the adjacent convex parts 22, respectively. That is, the positioning region is formed in a row so that the plurality of concave portions 23 are continuous in the sliding direction of the slide portion 3. For this purpose, there are a total of three recesses 23 in the illustrated example.
  • the slide portion 3 has a pair of arm portions 32a and 32b substantially parallel to the slide direction (longitudinal direction of the rail 2), and on the outer surface facing the rail 2 at the tips of the arm portions 32a and 32b.
  • a protrusion 31 is provided for each.
  • the projection 31 is fitted in the recess 23 of the rail 2 so that the slide portion 3 is positioned in the slide direction.
  • reference numeral 33 denotes a spring, and the spring pieces 33a and 33b at both ends are brought into contact with the arm portions 32a and 32b, respectively, and the arm portions 32a and 32b are respectively urged toward the rail 2 side.
  • the protrusion 31 is fitted into the recess 23 in a state where it is biased by the elasticity of the arm portions 32 a and 32 b and the elasticity of the spring 33.
  • the positioning region has at least three positioning units, and one positioning unit is formed around one recess 23. Referring to the position where the slide portion 3 is located in FIG. 1A, one concave portion 23 constituting the positioning unit is connected to the convex portion 22 at both side walls which are inclined surfaces, and the slide portion 3 is slid.
  • the ascending inclined surface and the descending inclined surface are referred to in correspondence with the sliding direction, and the positioning unit described above includes the tip side wall (ascending inclined surface) in the direction of sliding from the recess 23, and The rear end side wall (downward inclined surface) in the direction of sliding from the recess 23 is included. Further, in one direction in which the slide part 3 is slid, referring to the place where the slide part 3 is located in FIG.
  • one positioning unit is configured including the descending inclined surface 24 and the rising inclined surface 25, Referring to the position where the slide portion 3 is located in FIG. 1 (e), one positioning unit is configured including the descending inclined surface 28 and the rising inclined surface 25. That is, one positioning unit includes an ascending inclined surface positioned at the tip in the sliding direction with respect to one concave portion 23 and a descending inclined surface positioned at the rear end in the sliding direction.
  • the inclination angle ⁇ of the ascending inclined surface 27 of the positioning unit two or more units before the positioning unit at the final position of the tip end in the sliding direction is set to the ascending inclined surface 25 of the positioning unit adjacent in the leading end direction of the positioning unit. Is smaller than the inclination angle ⁇ .
  • the recesses 23 that are located at both ends in the longitudinal direction of the rail 2 and that have the other recesses 23 only on one side are inclined surfaces 27 (or the other recesses 23 adjacent to each other via the protrusions 22).
  • the inclination angle is different between the inclined surface 28) and the other inclined surface 25 (or inclined surface 24).
  • the recessed part 23 in which the other recessed part 23 exists in both sides, ie, the recessed part 23 located in the center, the inclined surfaces 24 and 25 of the both side walls have the same inclination angle.
  • the inclination angle ⁇ of the inclined surface 27 that is connected to the central concave portion 23 via the convex portion 22 is determined from the inclination angle ⁇ of the other inclined surfaces 24 and 25. It is small.
  • reference numeral 26 denotes the bottom surface of the recess 23 as described above, but the recess 23 may not have the bottom surface 26.
  • the protrusion 31 moves along the inclined surface 27 having a gentle inclination angle ⁇ .
  • the protrusion 31 retreats against the spring bias, gets over the convex portion 22 and then fits into the central concave portion 23.
  • the force required at this time is about 70% of the force when the inclination angle ⁇ is 30 ° and the inclination angle ⁇ is 45 °, compared to the case where the inclination angle ⁇ is moved along the inclined surfaces 24 and 25. It's okay.
  • the inclined surface 25 (or further) It moves along the inclined surface 24) and does not ride on the next convex portion 22, and is positioned and held in the central concave portion 23.
  • the protrusion 31 fitted in the recess 23 located at the center is moved to the recesses 23 positioned at both ends in the longitudinal direction of the rail 2, the inclination angle ⁇ of the inclined surfaces 24 and 25 is large, but the slide portion 3 Since the slide stroke is regulated separately, the protrusion 31 is held in the recessed portions 23 at both ends.
  • the rail 2 has a positioning area for positioning the slide portion 3 in the slide direction.
  • the positioning region of the rail 2 shown in FIG. 4 has six positioning units and is provided with first to sixth recesses 23a to 23f.
  • the ascending slope of the positioning unit located two units before the positioning unit (sixth concave portion 23f) at the final position of the slide portion 3 in the sliding direction (from left to right in FIG. 4).
  • the inclination angle of the surface is ⁇ 4, and the inclination angle of the rising inclined surface of the positioning unit (fifth concave portion 23e) adjacent in the distal direction of the positioning unit (fourth concave portion 23d) is ⁇ .
  • the inclination angle ⁇ 4 ⁇ the inclination angle ⁇ .
  • the inclination angle of the rising inclined surface of the positioning unit (third concave portion 23c) that is three units before the positioning unit (sixth concave portion 23f) at the final position of the tip of the sliding portion 3 in the sliding direction is ⁇ 3.
  • the inclination angle of the rising inclined surface of the positioning unit (fourth concave portion 23d) adjacent in the tip direction of the unit (third concave portion 23c) is ⁇ 4.
  • the inclination angle ⁇ 3 ⁇ the inclination angle ⁇ 4.
  • the inclination angle of the rising inclined surface of the positioning unit (second concave portion 23b) that is four units before the positioning unit (sixth concave portion 23f) at the final position of the tip of the sliding portion 3 in the sliding direction is ⁇ 2, and the positioning unit is positioned.
  • the inclination angle of the rising inclined surface of the positioning unit (third recess 23c) adjacent in the tip direction of the unit (second recess 23b) is ⁇ 3.
  • the inclination angle ⁇ 2 ⁇ the inclination angle ⁇ 3.
  • the inclination angle of the rising inclined surface of the positioning unit (first concave portion 23a) that is five units before the positioning unit (sixth concave portion 23f) at the final position of the slide portion 3 in the sliding direction is ⁇ 1
  • the inclination angle of the rising inclined surface of the positioning unit (second recess 23b) adjacent in the distal direction of the positioning unit (first recess 23a) is ⁇ 2.
  • the inclination angle ⁇ 1 ⁇ the inclination angle ⁇ 2.
  • the inclination angles of the rising inclined surfaces of the first recess 23a to the fifth recess 23e are ⁇ 1, ⁇ 2, ⁇ 3, ⁇ 4, and ⁇ , respectively, and there is a relationship of ⁇ 1 ⁇ 2 ⁇ 3 ⁇ 4 ⁇ .
  • ⁇ 1 is 30 °
  • ⁇ 2 is 35 °
  • ⁇ 3 is 40 °
  • ⁇ 4 is 45 °
  • ⁇ is 50 °
  • the force when moving the slide portion 3 from the first recess 23a to the second recess 23b is This is smaller than when moving from the second recess 23b to the third recess 23c.
  • the force when moving the slide portion 3 from the second recess 23b to the third recess 23c is smaller than when moving the slide portion 3 from the third recess 23c to the fourth recess 23d.
  • the force when moving the slide part 3 from the third recess 23c to the fourth recess 23d is smaller than when moving the slide part 3 from the fourth recess 23d to the fifth recess 23e.
  • the rising inclination of the positioning unit (third recess 23c) that is two units before the positioning unit (first recess 23a) at the final position of the tip of the slide portion 3 in the slide reverse direction (from right to left in FIG. 4).
  • the inclination angle of the surface is ⁇ 4
  • the inclination angle of the rising inclination surface of the positioning unit (second recess 23b) adjacent in the distal direction of the positioning unit (third recess 23c) is ⁇ .
  • the inclination angle ⁇ 4 ⁇ the inclination angle ⁇ .
  • the description of the reverse direction of the slide is similar to the description of the slide direction, and is omitted.
  • FIG. 3 shows an electric tool provided with the slide switch 1, and the slide switch 1 arranged on the upper surface portion of the electric tool is used as a changeover switch for changing a reduction ratio in the electric tool.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Slide Switches (AREA)
  • Portable Power Tools In General (AREA)
  • Machine Tool Units (AREA)

Abstract

A slide switch for an electric tool is provided with a pair of rails (2) and a slide part (3) for sliding sandwiched between said rails, and said rails (2) are provided with a positioning region for determining the position in the sliding direction of the slide part. The positioning region, comprising a plurality of concave parts (23) formed in a line on the slide part side, has at least three positioning units formed so as to be centred around one of the concave parts (23). The angle of inclination (α) of an ascending inclined face (27) of the positioning unit which is two units or more in front of the positioning unit which is in the final position at the tip end in the sliding direction is smaller than the angle of inclination (β) of an ascending inclined face (25) of the positioning unit adjacent to said positioning unit in the tip end direction.

Description

電動工具用スライドスイッチSlide switch for electric tools
　本発明は、電動工具用スライドスイッチに関するものである。 The present invention relates to a slide switch for an electric tool.
　変速機構を内蔵する電動工具において、その変速状態の切り替え用としてスライドスイッチを用いたものがある。この用途のスライドスイッチにおける位置決め機構の一例を図２に示す。一対のレール２間に配したスライド部３には弾性を有するアーム部３２ａ，３２ｂを設けて、各アーム部３２ａ，３２ｂの各先端外面に夫々突起３１を設けている。図中３３はその両端部のばね片３３ａ，３３ｂを上記アーム部３２ａ，３２ｂに接触させて各突起３１をレール２側に付勢しているばねである。
　そして、各レール２のスライド部３側の面には、レール２の長手方向（スライド部３のスライド方向）に沿って凸部２２と凹部２３とを交互に形成しており、スライド部３をスライドさせる時、突起３１はレール２の凹部２３から凸部２２を乗り越えて隣の凹部２３に移動する。突起３１が凹部２３内に位置することで位置決めされる。
　ここにおいて、従来はレール２における各凹部２３の形状を同じ形状としていた。すなわち、図５に示すように、凹部２３は底面２６と、底面２６から凸部２２に向かう傾斜面２４，２５とを有しているが、複数設けられた各凹部２３は全て同じ形状となっていた。
特開平０７−３３５０７３号公報 Some electric tools incorporating a speed change mechanism use a slide switch for switching the speed change state. An example of a positioning mechanism in the slide switch for this application is shown in FIG. The slide portion 3 disposed between the pair of rails 2 is provided with elastic arm portions 32a and 32b, and a protrusion 31 is provided on each outer end surface of each arm portion 32a and 32b. In the figure, reference numeral 33 denotes a spring that urges each protrusion 31 toward the rail 2 by bringing the spring pieces 33a and 33b at both ends thereof into contact with the arm portions 32a and 32b.
And the convex part 22 and the recessed part 23 are alternately formed in the surface at the side of the slide part 3 of each rail 2 along the longitudinal direction (slide direction of the slide part 3) of the rail 2, and the slide part 3 is formed. When sliding, the protrusion 31 moves from the concave portion 23 of the rail 2 over the convex portion 22 to the adjacent concave portion 23. The protrusion 31 is positioned by being positioned in the recess 23.
Here, conventionally, the shape of each recess 23 in the rail 2 is the same. That is, as shown in FIG. 5, the concave portion 23 has a bottom surface 26 and inclined surfaces 24 and 25 from the bottom surface 26 toward the convex portion 22, but the plurality of concave portions 23 are all in the same shape. It was.
JP 07-335073 A
　この場合、凹部２３が３個以上並んで３段以上の切り替えができるものにおいては、スライド操作を加えた時のスライド部３の動きに不具合が生じることがあった。以下、具体的に説明する。
　凹部２３から隣り合う凹部２３に突起３１を移動させるには、凸部２２を乗り越えさせなくてはならず、この時、傾斜面２４，２５の傾斜角に応じた力が必要となる。今、図５（ａ）においてスライド部３を白抜き矢印方向にスライドさせる時、傾斜面２５のためにアーム部３２ａの弾性及びばね片３３ａの弾性に抗して突起３１を後退させる力が必要であり、このための力を加えなくてはならないが、えてして加える力が大きすぎる場合があり、この時には突起３１が隣の凹部２３で止まらずに、図５（ｂ）に示すようにさらに次の凸部２２に乗りあげたり、さらに隣の凹部２３にまで移動してしまうことがあった。 In this case, in the case where three or more recesses 23 are arranged and can be switched in three or more stages, there may be a problem in the movement of the slide part 3 when a slide operation is applied. This will be specifically described below.
In order to move the protrusion 31 from the recess 23 to the adjacent recess 23, the protrusion 22 must be moved over, and at this time, a force corresponding to the inclination angle of the inclined surfaces 24 and 25 is required. Now, when the slide part 3 is slid in the direction of the white arrow in FIG. 5A, a force for retracting the protrusion 31 against the elasticity of the arm part 32a and the elasticity of the spring piece 33a is required for the inclined surface 25. However, there is a case where the force to be applied is too large. In this case, the protrusion 31 does not stop at the adjacent recess 23, and as shown in FIG. May have moved up to the convex portion 22 or moved to the adjacent concave portion 23.
　本発明は上記問題に鑑みてなされたもので、その課題は、順序良く一段階ずつ切替えることができる電動工具用のスライドスイッチを提供することである。
　上記課題を解決するために、本発明は、一対のレールと、前記レールに挟まれてスライドするスライド部とを備え、前記レールは前記スライド部をスライド方向において位置決めする位置決め領域を有し、前記スライ部は前記レール側に付勢されて前記位置決め領域と接する突起を有している電動工具用スライドスイッチであって、前記位置決め領域は前記レールの前記スライド部側に一列に形成された複数の凹部を含んでなり、１つの凹部を中心に形成された位置決定単位を少なくとも３単位有し、前記位置決め単位は、前記１つの凹部を基準に前記スライド方向の先端に位置する昇り傾斜面と、前記スライド方向の後端に位置する降り傾斜面を含んで構成され、前記スライド方向の先端の最終位置にある位置決め単位から２単位以上手前にある位置決め単位の昇り傾斜面の傾斜角度は、該位置決め単位の先端方向に隣り合う位置決め単位の昇り傾斜面の傾斜角度よりも小さいことに特徴を有している。
　最終位置にある位置決め単位から２単位手前にある位置決め単位を構成する凹部から、最終位置にある位置決め単位から１単位手前にある位置決め単位を構成する凹部に突起を移動させることになるスライド操作は、最終位置にある位置決め単位から１単位手前にある位置決め単位を構成する凹部から、最終位置にある位置決め単位を構成する凹部に突起を移動させることになるスライド操作よりも小さい力で行えるようにしたものである。
This invention is made | formed in view of the said problem, The subject is providing the slide switch for electric tools which can be switched in order one step at a time.
In order to solve the above-described problem, the present invention includes a pair of rails and a slide portion that slides between the rails, the rail having a positioning region that positions the slide portion in a slide direction, The slicing portion is a slide switch for an electric tool that has a protrusion that is urged toward the rail side and is in contact with the positioning region, and the positioning region includes a plurality of rows formed in a row on the slide portion side of the rail. A positioning unit formed at the center of one recess, the positioning unit including an ascending inclined surface positioned at a tip in the sliding direction with respect to the one recess; 2 units or more from the positioning unit at the final position of the tip in the slide direction, including a descending inclined surface located at the rear end in the slide direction The inclination angle of the riser inclined surface of a positioning unit is characterized in that less than the inclination angle of the riser inclined surface of the positioning unit adjacent in the direction of the front end of the positioning unit.
The slide operation that moves the projection from the concave portion constituting the positioning unit two units before the positioning unit at the final position to the concave portion constituting the positioning unit one unit before from the positioning unit at the final position is What can be done with less force than the slide operation that moves the protrusion from the recess that forms the positioning unit one unit before the positioning unit at the final position to the recess that forms the positioning unit at the final position It is.
発明の効果The invention's effect
　本発明においては、スライド部を移動させるための力を少々加えすぎても、行き過ぎてしまうという事態を招くおそれが少なくて、順序良く一段ずつ切り替えることができる。 In the present invention, even if a little force for moving the slide portion is applied, there is little possibility of causing a situation where the slide portion goes too far, and the switching can be performed step by step in order.
　本発明の目的及び特徴は以下のような添付図面と好ましい実施例の説明により明確になる。
本発明の実施形態の一例における動作を示すもので、（ａ）~（ｅ）は夫々部分拡大図である。 同上の斜視図である。 同上のスライドスイッチを備えた電動工具の斜視図である。 本発明の実施形態の変形例における動作を示す部分拡大図である。 従来例の部分拡大図である。 The objects and features of the present invention will become apparent from the following drawings and description of preferred embodiments.
FIG. 3 shows operations in an example of an embodiment of the present invention, and (a) to (e) are partially enlarged views. It is a perspective view same as the above. It is a perspective view of the electric tool provided with the slide switch same as the above. It is the elements on larger scale which show the operation | movement in the modification of embodiment of this invention. It is the elements on larger scale of the prior art example.
　図１から図３に基づいて本願発明の実施形態について説明する。図面全体において同一又は類似する部分については同一参照符号を付して説明を省略する。
　本実施形態における電動工具用スライドスイッチ１は、一対のレール２と、前記レール２に挟まれてスライドするスライド部３とを備える。前記レール２は前記スライド部３をスライド方向において位置決めする位置決め領域を有し、前記スライド部３は前記レール２側に付勢されて前記位置決め領域と接する突起３１を有している。前記位置決め領域は、前記レール２の前記スライド部側に一列に形成された複数の凹部２３を含んでなり、１つの凹部２３を中心に形成された位置決定単位を少なくとも３単位有する。また、前記位置決め単位は、１つの凹部２３を基準に前記スライド方向の先端に位置する昇り傾斜面と、前記スライド方向の後端に位置する降り傾斜面を含んで構成される。そして、前記スライド方向の先端の最終位置にある位置決め単位から２単位以上手前にある位置決め単位の昇り傾斜面２７の傾斜角度αが、該位置決め単位の先端方向に隣り合う位置決め単位の昇り傾斜面２５の傾斜角度βよりも小さい。
　図２にスライドスイッチ１の全体を示す。このスライドスイッチ１は、一対のレール２と、レール２に挟まれてスライドするスライド部３とを有する。
　各レール２は、スライド部３の動きをガイドして一方向に往復移動させるとともに、スライド部３のスライドに関して位置決めを行うもので、両レール２は図示していない部材（たとえば電動工具のハウジング）によって相互に連結されている。
　平行並列に配された両レール２は、スライド部３をスライド方向において位置決めする位置決め領域を有する。位置決め領域はそれぞれのレール２上に互いに対向する方向（スライド部３側）に突出する４つの凸部２２を上記スライド部３のスライド方向に連続するように形成されている。そして、隣合う凸部２２間には夫々凹部２３が形成されている。つまり、位置決め領域は複数の凹部２３がスライド部３のスライド方向に連続するように一列に形成されている。このために図示例では総計３個の凹部２３がある。
　スライド部３は、そのスライド方向（レール２の長手方向）に略並行する一対のアーム部３２ａ，３２ｂを有しており、各アーム部３２ａ，３２ｂの先端で且つレール２と対向する外面には夫々突起３１が設けられている。この突起３１が上記レール２の凹部２３に嵌ることでスライド部３のスライド方向における位置決めがなされる。図中３３はばねであり、両端部のばね片３３ａ，３３ｂを夫々アーム部３２ａ，３２ｂに接触して各アーム部３２ａ，３２ｂをレール２側に夫々付勢する。このために上記突起３１はアーム部３２ａ，３２ｂの弾性とばね３３の弾性による付勢を受けた状態で凹部２３に嵌り込む。
　位置決め領域は少なくとも３単位の位置決め単位を有し、１単位の位置決め単位は１つの凹部２３を中心に形成される。図１（ａ）でスライド部３が位置する所を参照すると、位置決め単位を構成する１つの凹部２３は、傾斜面となっている両側壁で凸部２２につながっており、スライド部３をスライドさせる方向において、凸部２２から前記凹部２３の底面２６に向かって降る降り傾斜面２４と、凹部２３の底面２６から前記凸部２２とスライド方向に隣り合う凸部２２まで昇る昇り傾斜面２７を含んでなる。
　ここで、昇り傾斜面と降り傾斜面というのはスライドさせる方向に対応して称されるものであって、上述の位置決め単位は、凹部２３からスライドさせる方向の先端側壁（昇り傾斜面）と、凹部２３からスライドさせる方向の後端側壁（降り傾斜面）を含んで構成される。
　また、スライド部３をスライドさせる一方向において、図１（ｃ）でスライド部３が位置する所を参照すると、降り傾斜面２４と、昇り傾斜面２５を含んで１つの位置決め単位を構成し、図１（ｅ）でスライド部３が位置する所を参照すると、降り傾斜面２８と、昇り傾斜面２５を含んで１つの位置決め単位を構成する。
　つまり、１つの位置決め単位は、１つの凹部２３を基準にスライド方向の先端に位置する昇り傾斜面と、スライド方向の後端に位置する降り傾斜面を含んで構成される。
　そしてここではスライド方向の先端の最終位置にある位置決め単位から２単位以上手前にある位置決め単位の昇り傾斜面２７の傾斜角度αを、該位置決め単位の先端方向に隣り合う位置決め単位の昇り傾斜面２５の傾斜角度βよりも小さくしている。
　言い換えるならば、レール２の長手方向両端に位置して片側にのみ他の凹部２３が存在している凹部２３は、凸部２２を介して他の凹部２３が隣接する側の傾斜面２７（或いは傾斜面２８）と、他方の傾斜面２５（或いは傾斜面２４）とでその傾斜角が異なっている。そして、両隣に他の凹部２３が存在している凹部２３、すなわち中央に位置している凹部２３は、その両側壁の傾斜面２４，２５が同じ傾斜角度となっている。そしてこれら傾斜面２４，２５，２７，２８のうち、中央の凹部２３に夫々凸部２２を介してつながっている傾斜面２７の傾斜角度αを、他の傾斜面２４，２５の傾斜角度βより小さくしている。図中２６は上述のように凹部２３における底面を示しているが、凹部２３はこの底面２６がないものであってもよい。
　今、図１（ａ）に示すように、レール２の端部にある凹部２３に突起３１が嵌り込んでいる状態から、スライド部３を図中白抜き矢印で示す方向にスライドさせることで、突起３１を中央の凹部２３にまで移動させる場合、突起３１は傾斜角度αが緩い傾斜面２７に沿って移動する。この時、突起３１は前記ばね付勢に抗して後退し、凸部２２を乗り越えた後、中央の凹部２３に嵌り込む。この時に必要な力は、傾斜角度αを３０°、傾斜角度βを４５°とすると、傾斜角度βである傾斜面２４，２５に沿って移動させる場合に比して、約７０％程度の力でよい。
　このために、傾斜面２７に沿って移動させる際の力が少々強くても、突起３１が傾斜面２７から凸部２２を乗り越えて隣の凹部２３に嵌り込んだ後、更に傾斜面２５（あるいは傾斜面２４）に沿って移動して更に次の凸部２２に乗り上げるようなことはなく、中央の凹部２３において位置決め保持される。
　中央に位置する凹部２３に嵌り込んでいる突起３１を、レール２の長手方向両端に位置する凹部２３に移動させる場合は、傾斜面２４，２５の傾斜角度βが大であるが、スライド部３そのもののスライドストロークが別に規制されているために、両端の凹部２３に突起３１が嵌り込んだ状態で保持される。
　次に、図４を参照して、本実施形態の変形例について説明する。本実施形態の変形例では図１に示す実施形態に比べて凹部の数のみが異なるので、その他の部分については説明を省略する。
　レール２は、スライド部３をスライド方向において位置決めする位置決め領域を有する。図４に示すレール２の位置決め領域には６単位の位置決め単位を有し、第１ないし第６凹部２３ａ~２３ｆが設けられている。
　ここで、スライド部３のスライド方向の先端（図４では左から右方向）の最終位置にある位置決め単位（第６凹部２３ｆ）から２単位手前にある位置決め単位（第４凹部２３ｄ）の昇り傾斜面の傾斜角度はα４であり、位置決め単位（第４凹部２３ｄ）の先端方向に隣り合う位置決め単位（第５凹部２３ｅ）の昇り傾斜面の傾斜角度はβである。この時、傾斜角度α４＜傾斜角度βである。
　また、スライド部３のスライド方向の先端の最終位置にある位置決め単位（第６凹部２３ｆ）から３単位手前にある位置決め単位（第３凹部２３ｃ）の昇り傾斜面の傾斜角度はα３であり、位置決め単位（第３凹部２３ｃ）の先端方向に隣り合う位置決め単位（第４凹部２３ｄ）の昇り傾斜面の傾斜角度はα４である。この時、傾斜角度α３＜傾斜角度α４である。
　また、スライド部３のスライド方向の先端の最終位置にある位置決め単位（第６凹部２３ｆ）から４単位手前にある位置決め単位（第２凹部２３ｂ）の昇り傾斜面の傾斜角度はα２であり、位置決め単位（第２凹部２３ｂ）の先端方向に隣り合う位置決め単位（第３凹部２３ｃ）の昇り傾斜面の傾斜角度はα３である。この時、傾斜角度α２＜傾斜角度α３である。
　続いて、スライド部３のスライド方向の先端の最終位置にある位置決め単位（第６凹部２３ｆ）から５単位手前にある位置決め単位（第１凹部２３ａ）の昇り傾斜面の傾斜角度はα１であり、位置決め単位（第１凹部２３ａ）の先端方向に隣り合う位置決め単位（第２凹部２３ｂ）の昇り傾斜面の傾斜角度はα２である。この時、傾斜角度α１＜傾斜角度α２である。
　つまり、第１凹部２３ａないし第５凹部２３ｅの昇り傾斜面の傾斜角度はそれぞれα１、α２、α３、α４、βであって、α１＜α２＜α３＜α４＜βの関係がある。例えば、α１を３０°、α２を３５°、α３を４０°、α４を４５°、βを５０°にすると、スライド部３を第１凹部２３ａから第２凹部２３ｂに移動させる時の力は、第２凹部２３ｂから第３凹部２３ｃに移動させる時に比べて小さい。また、スライド部３を第２凹部２３ｂから第３凹部２３ｃに移動させる時の力は、第３凹部２３ｃから第４凹部２３ｄに移動させる時に比べて小さい。同じく、スライド部３を第３凹部２３ｃから第４凹部２３ｄに移動させる時の力は、第４凹部２３ｄから第５凹部２３ｅに移動させる時に比べて小さい。このために、スライド部３のスライドさせる際に、スライド部３を移動させるための力を少々加えすぎても、行き過ぎてしまうという事態を招くおそれが少なくて、順序良く一段ずつ切り替えることができる。
　また、スライド部３のスライド逆方向の先端（図４では右から左方向）の最終位置にある位置決め単位（第１凹部２３ａ）から２単位手前にある位置決め単位（第３凹部２３ｃ）の昇り傾斜面の傾斜角度はα４であり、位置決め単位（第３凹部２３ｃ）の先端方向に隣り合う位置決め単位（第２凹部２３ｂ）の昇り傾斜面の傾斜角度はβである。この時、傾斜角度α４＜傾斜角度βである。以下、スライド逆方向の説明は、スライド方向の説明と類似しているので省略する。
　また、レール２の両端に位置する凹部２３は、他の凹部２３が隣接していない側の側壁を傾斜面ではなく直角壁としているものであってもよい。
　図３は上記スライドスイッチ１を備えた電動工具を示しており、電動工具の上面部分に配されたスライドスイッチ１は、電動工具における減速比の切り替えについての切り替えスイッチとして用いられている。
　以上、本発明の好ましい実施形態が説明されているが、本発明はこれらの特定の実施形態に限られるものではなく、請求範囲の範疇から離脱しない多様な変更及び変形が可能であり、それも本発明の範疇内に属する。 An embodiment of the present invention will be described with reference to FIGS. The same or similar parts throughout the drawings are denoted by the same reference numerals, and the description thereof is omitted.
The slide switch 1 for an electric tool in the present embodiment includes a pair of rails 2 and a slide portion 3 that slides between the rails 2. The rail 2 has a positioning region for positioning the slide portion 3 in the sliding direction, and the slide portion 3 has a protrusion 31 that is biased toward the rail 2 and contacts the positioning region. The positioning region includes a plurality of recesses 23 formed in a line on the slide portion side of the rail 2, and has at least three positioning units formed around one recess 23. The positioning unit includes an ascending inclined surface positioned at the tip in the sliding direction with respect to one recess 23 and a descending inclined surface positioned at the rear end in the sliding direction. Then, the inclination angle α of the ascending inclined surface 27 of the positioning unit two or more units before the positioning unit at the final position of the tip end in the sliding direction is the ascending inclined surface 25 of the positioning unit adjacent in the leading end direction of the positioning unit. Is smaller than the inclination angle β.
FIG. 2 shows the entire slide switch 1. The slide switch 1 includes a pair of rails 2 and a slide portion 3 that slides between the rails 2.
Each rail 2 guides the movement of the slide part 3 and reciprocates in one direction, and positions the slide 2 with respect to the slide. The two rails 2 are not shown (for example, a housing of an electric tool). Are connected to each other.
Both rails 2 arranged in parallel and parallel have a positioning region for positioning the slide part 3 in the slide direction. The positioning region is formed on the rails 2 so that four convex portions 22 projecting in directions facing each other (on the slide portion 3 side) are continuous in the slide direction of the slide portion 3. And the recessed part 23 is formed between the adjacent convex parts 22, respectively. That is, the positioning region is formed in a row so that the plurality of concave portions 23 are continuous in the sliding direction of the slide portion 3. For this purpose, there are a total of three recesses 23 in the illustrated example.
The slide portion 3 has a pair of arm portions 32a and 32b substantially parallel to the slide direction (longitudinal direction of the rail 2), and on the outer surface facing the rail 2 at the tips of the arm portions 32a and 32b. A protrusion 31 is provided for each. The projection 31 is fitted in the recess 23 of the rail 2 so that the slide portion 3 is positioned in the slide direction. In the figure, reference numeral 33 denotes a spring, and the spring pieces 33a and 33b at both ends are brought into contact with the arm portions 32a and 32b, respectively, and the arm portions 32a and 32b are respectively urged toward the rail 2 side. For this purpose, the protrusion 31 is fitted into the recess 23 in a state where it is biased by the elasticity of the arm portions 32 a and 32 b and the elasticity of the spring 33.
The positioning region has at least three positioning units, and one positioning unit is formed around one recess 23. Referring to the position where the slide portion 3 is located in FIG. 1A, one concave portion 23 constituting the positioning unit is connected to the convex portion 22 at both side walls which are inclined surfaces, and the slide portion 3 is slid. In this direction, a descending inclined surface 24 descending from the convex portion 22 toward the bottom surface 26 of the concave portion 23 and an ascending inclined surface 27 rising from the bottom surface 26 of the concave portion 23 to the convex portion 22 adjacent to the convex portion 22 in the sliding direction. Comprising.
Here, the ascending inclined surface and the descending inclined surface are referred to in correspondence with the sliding direction, and the positioning unit described above includes the tip side wall (ascending inclined surface) in the direction of sliding from the recess 23, and The rear end side wall (downward inclined surface) in the direction of sliding from the recess 23 is included.
Further, in one direction in which the slide part 3 is slid, referring to the place where the slide part 3 is located in FIG. 1C, one positioning unit is configured including the descending inclined surface 24 and the rising inclined surface 25, Referring to the position where the slide portion 3 is located in FIG. 1 (e), one positioning unit is configured including the descending inclined surface 28 and the rising inclined surface 25.
That is, one positioning unit includes an ascending inclined surface positioned at the tip in the sliding direction with respect to one concave portion 23 and a descending inclined surface positioned at the rear end in the sliding direction.
Here, the inclination angle α of the ascending inclined surface 27 of the positioning unit two or more units before the positioning unit at the final position of the tip end in the sliding direction is set to the ascending inclined surface 25 of the positioning unit adjacent in the leading end direction of the positioning unit. Is smaller than the inclination angle β.
In other words, the recesses 23 that are located at both ends in the longitudinal direction of the rail 2 and that have the other recesses 23 only on one side are inclined surfaces 27 (or the other recesses 23 adjacent to each other via the protrusions 22). The inclination angle is different between the inclined surface 28) and the other inclined surface 25 (or inclined surface 24). And the recessed part 23 in which the other recessed part 23 exists in both sides, ie, the recessed part 23 located in the center, the inclined surfaces 24 and 25 of the both side walls have the same inclination angle. Of these inclined surfaces 24, 25, 27, and 28, the inclination angle α of the inclined surface 27 that is connected to the central concave portion 23 via the convex portion 22 is determined from the inclination angle β of the other inclined surfaces 24 and 25. It is small. In the drawing, reference numeral 26 denotes the bottom surface of the recess 23 as described above, but the recess 23 may not have the bottom surface 26.
Now, as shown in FIG. 1 (a), from the state where the protrusion 31 is fitted in the recess 23 at the end of the rail 2, the slide part 3 is slid in the direction indicated by the white arrow in the figure. When the protrusion 31 is moved to the central recess 23, the protrusion 31 moves along the inclined surface 27 having a gentle inclination angle α. At this time, the protrusion 31 retreats against the spring bias, gets over the convex portion 22 and then fits into the central concave portion 23. The force required at this time is about 70% of the force when the inclination angle α is 30 ° and the inclination angle β is 45 °, compared to the case where the inclination angle β is moved along the inclined surfaces 24 and 25. It's okay.
For this reason, even if the force at the time of moving along the inclined surface 27 is a little strong, after the protrusion 31 gets over the convex portion 22 from the inclined surface 27 and fits into the adjacent concave portion 23, the inclined surface 25 (or further) It moves along the inclined surface 24) and does not ride on the next convex portion 22, and is positioned and held in the central concave portion 23.
When the protrusion 31 fitted in the recess 23 located at the center is moved to the recesses 23 positioned at both ends in the longitudinal direction of the rail 2, the inclination angle β of the inclined surfaces 24 and 25 is large, but the slide portion 3 Since the slide stroke is regulated separately, the protrusion 31 is held in the recessed portions 23 at both ends.
Next, a modification of the present embodiment will be described with reference to FIG. Since the modification of this embodiment differs from the embodiment shown in FIG. 1 only in the number of recesses, the description of other parts is omitted.
The rail 2 has a positioning area for positioning the slide portion 3 in the slide direction. The positioning region of the rail 2 shown in FIG. 4 has six positioning units and is provided with first to sixth recesses 23a to 23f.
Here, the ascending slope of the positioning unit (fourth concave portion 23d) located two units before the positioning unit (sixth concave portion 23f) at the final position of the slide portion 3 in the sliding direction (from left to right in FIG. 4). The inclination angle of the surface is α4, and the inclination angle of the rising inclined surface of the positioning unit (fifth concave portion 23e) adjacent in the distal direction of the positioning unit (fourth concave portion 23d) is β. At this time, the inclination angle α4 <the inclination angle β.
Further, the inclination angle of the rising inclined surface of the positioning unit (third concave portion 23c) that is three units before the positioning unit (sixth concave portion 23f) at the final position of the tip of the sliding portion 3 in the sliding direction is α3. The inclination angle of the rising inclined surface of the positioning unit (fourth concave portion 23d) adjacent in the tip direction of the unit (third concave portion 23c) is α4. At this time, the inclination angle α3 <the inclination angle α4.
Further, the inclination angle of the rising inclined surface of the positioning unit (second concave portion 23b) that is four units before the positioning unit (sixth concave portion 23f) at the final position of the tip of the sliding portion 3 in the sliding direction is α2, and the positioning unit is positioned. The inclination angle of the rising inclined surface of the positioning unit (third recess 23c) adjacent in the tip direction of the unit (second recess 23b) is α3. At this time, the inclination angle α2 <the inclination angle α3.
Subsequently, the inclination angle of the rising inclined surface of the positioning unit (first concave portion 23a) that is five units before the positioning unit (sixth concave portion 23f) at the final position of the slide portion 3 in the sliding direction is α1, The inclination angle of the rising inclined surface of the positioning unit (second recess 23b) adjacent in the distal direction of the positioning unit (first recess 23a) is α2. At this time, the inclination angle α1 <the inclination angle α2.
That is, the inclination angles of the rising inclined surfaces of the first recess 23a to the fifth recess 23e are α1, α2, α3, α4, and β, respectively, and there is a relationship of α1 <α2 <α3 <α4 <β. For example, when α1 is 30 °, α2 is 35 °, α3 is 40 °, α4 is 45 °, and β is 50 °, the force when moving the slide portion 3 from the first recess 23a to the second recess 23b is This is smaller than when moving from the second recess 23b to the third recess 23c. The force when moving the slide portion 3 from the second recess 23b to the third recess 23c is smaller than when moving the slide portion 3 from the third recess 23c to the fourth recess 23d. Similarly, the force when moving the slide part 3 from the third recess 23c to the fourth recess 23d is smaller than when moving the slide part 3 from the fourth recess 23d to the fifth recess 23e. For this reason, when the slide part 3 is slid, even if a force for moving the slide part 3 is applied a little, there is little possibility of causing a situation that the slide part 3 goes too far, and switching can be performed step by step in order.
Further, the rising inclination of the positioning unit (third recess 23c) that is two units before the positioning unit (first recess 23a) at the final position of the tip of the slide portion 3 in the slide reverse direction (from right to left in FIG. 4). The inclination angle of the surface is α4, and the inclination angle of the rising inclination surface of the positioning unit (second recess 23b) adjacent in the distal direction of the positioning unit (third recess 23c) is β. At this time, the inclination angle α4 <the inclination angle β. Hereinafter, the description of the reverse direction of the slide is similar to the description of the slide direction, and is omitted.
Moreover, the recessed part 23 located in the both ends of the rail 2 may use the side wall of the side where the other recessed part 23 is not adjacent as a right-angle wall instead of an inclined surface.
FIG. 3 shows an electric tool provided with the slide switch 1, and the slide switch 1 arranged on the upper surface portion of the electric tool is used as a changeover switch for changing a reduction ratio in the electric tool.
The preferred embodiments of the present invention have been described above, but the present invention is not limited to these specific embodiments, and various modifications and variations that do not depart from the scope of the claims are possible. It belongs to the category of the present invention.

Claims (1)

  1. 　一対のレールと、前記レールに挟まれてスライドするスライド部とを備え、
    　前記レールは前記スライド部をスライド方向において位置決めする位置決め領域を有し、
    　前記スライド部は前記レール側に付勢されて前記位置決め領域と接する突起を有している電動工具用スライドスイッチであって、
    　前記位置決め領域は前記レールの前記スライド部側に一列に形成された複数の凹部を含んでなり、１つの凹部を中心に形成された位置決定単位を少なくとも３単位有し、
    　前記位置決め単位は、前記１つの凹部を基準に前記スライド方向の先端に位置する昇り傾斜面と、前記スライド方向の後端に位置する降り傾斜面を含んで構成され、
    　前記スライド方向の先端の最終位置にある位置決め単位から２単位以上手前にある位置決め単位の昇り傾斜面の傾斜角度は、該位置決め単位の先端方向に隣り合う位置決め単位の昇り傾斜面の傾斜角度よりも小さいことを特徴とする電動工具用スライドスイッチ。     A pair of rails, and a slide portion that slides between the rails,
    The rail has a positioning region for positioning the slide portion in the slide direction,
    The slide part is a slide switch for an electric tool having a protrusion that is urged toward the rail and is in contact with the positioning region,
    The positioning region includes a plurality of concave portions formed in a row on the slide portion side of the rail, and has at least three positioning units formed around one concave portion,
    The positioning unit includes an ascending inclined surface positioned at the tip in the sliding direction with respect to the one recess, and a descending inclined surface positioned at the rear end in the sliding direction,
    The inclination angle of the ascending inclined surface of the positioning unit that is at least two units before the positioning unit at the final position of the tip end in the sliding direction is greater than the inclination angle of the ascending inclined surface of the positioning unit adjacent to the leading end direction of the positioning unit. A slide switch for electric tools characterized by being small.
PCT/IB2012/001483 2011-09-20 2012-08-02 Slide switch for electric tool WO2014006438A1 (en)

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EP12880607.2A EP2759380B1 (en) 2011-09-20 2012-08-02 Slide switch for electric tool
CN201280045529.4A CN103826804B (en) 2011-09-20 2012-08-02 Electric tool slide switch

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JP2011-204995 2011-09-20
JP2011204995A JP5821032B2 (en) 2011-09-20 2011-09-20 Slide switch for electric tools

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CN110731540A (en) * 2019-10-24 2020-01-31 深圳市惟雾科技有限公司 Electronic cigarette
US11407098B2 (en) * 2019-11-26 2022-08-09 Stmicroelectronics S.R.L. Smart push button device utilizing MEMS sensors
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WO2014006438A8 (en) 2014-03-13

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