EP2759380B1 - Schiebeschalter für elektrowerkzeug - Google Patents

Schiebeschalter für elektrowerkzeug Download PDF

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Publication number
EP2759380B1
EP2759380B1 EP12880607.2A EP12880607A EP2759380B1 EP 2759380 B1 EP2759380 B1 EP 2759380B1 EP 12880607 A EP12880607 A EP 12880607A EP 2759380 B1 EP2759380 B1 EP 2759380B1
Authority
EP
European Patent Office
Prior art keywords
positioning
recess
slider
sliding direction
positioning unit
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP12880607.2A
Other languages
English (en)
French (fr)
Other versions
EP2759380A4 (de
EP2759380A1 (de
Inventor
Masari MURAMATSU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
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 Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of EP2759380A1 publication Critical patent/EP2759380A1/de
Publication of EP2759380A4 publication Critical patent/EP2759380A4/de
Application granted granted Critical
Publication of EP2759380B1 publication Critical patent/EP2759380B1/de
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Anticipated expiration legal-status Critical

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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 power tool.
  • FIG. 2 An electric power tool that employs a slide switch for switching the speed level of the electric power tool.
  • a positioning mechanism of the slide switch used for this purpose is illustrated in Fig. 2 .
  • Elastic arm portions 32a and 32b are provided to a slider 3 disposed between a pair of rails 2.
  • Projections 31 are provided on the outer surfaces of the tip ends of the arm portions 32a and 32b.
  • reference symbol 33 designates a spring for bringing spring pieces 33a and 33b formed in the opposite end portions thereof into contact with the arm portions 32a and 32b and biasing the respective projections 31 toward the rails 2.
  • each of the projections 31 moves from one recess 23 to the next recess 23 by climbing over the protrusion 22.
  • the slider 3 is positioned in place as the projections 31 are located within the recesses 23.
  • each of the recesses 23 of the rails 2 are identical in shape with one another.
  • each of the recesses 23 includes a bottom surface 26 and slant surfaces 24 and 25 extending from the bottom surface 26 toward the corresponding protrusions 22.
  • the recesses 23 provided in plural numbers are identical in shape with one another.
  • Patent Document 1 Japanese Patent Application Publication No. H07-335073
  • the projection 31 In order for the projection 31 to move from one recess 23 to the neighboring recess 23, the projection 31 has to climb over the protrusion 22. At this time, it is necessary to apply a force which depends on the inclination angle of the slant surfaces 24 and 25.
  • the slider 3 When the slider 3 is slid in a direction indicated by an arrow in Fig. 5A , due to the presence of the slant surface 25, it is necessary to apply a force for moving the projection 31 against the elasticity of the arm portion 32a and the elasticity of the spring piece 33a.
  • the force thus applied becomes too large. In this case, the projection 31 may not stop in the neighboring recess 23 to climb over the next protrusion 22 or may move to the next neighboring recess 23.
  • Patent Document 2 United States Patent Application Publication No. 5 824 977 A
  • Patent Document 2 discloses a slide switch which includes a moving contact contained within a slider that moves between a plurality of desired stationary contacts.
  • Patent Document 3 German Patent Application No. 10 2006 035 386 A1 .
  • Patent Document 3 discloses a slide switch for a power tool having multiple gears.
  • the present invention provides a slide switch for an electric power tool capable of being sequentially switched step by step.
  • a slide switch for an electric power tool according to claim 1.
  • the sliding operation for moving the projection from the recess of the positioning unit, which is located two units before the final positioning unit, to the recess of the positioning unit, which is located one unit before the final positioning unit, can be performed by a smaller force than the sliding operation for moving the projection from the recess of the positioning unit, which is located one unit before the final positioning unit, to the recess of the final positioning unit.
  • the slide switch can be sequentially switched step by step.
  • a slide switch 1 for an electric power tool in accordance with the present embodiment includes a pair of rails 2 and a slider 3 sliding between the rails 2.
  • Each of the rails 2 includes a positioning region for positioning the slider 3 in a sliding direction.
  • the slider 3 includes projections 31, each of which is biased toward each of the rails 2 to make contact with the positioning region.
  • the positioning region includes a plurality of recesses 23 arranged side by side on the surface of each of the rails 2 facing the slider 3.
  • a section around each one of the recesses 23 defines a positioning unit, and the positioning region includes at least three positioning units.
  • an ascending slant surface is positioned at the front end in the sliding direction and a descending slant surface is positioned at the rear end in the sliding direction.
  • Each of the positioning units includes the ascending slant surface and the descending slant surface.
  • the inclination angle ⁇ of the ascending slant surface 27 of a positioning unit which is located two or more units before the final positioning unit positioned at the front end position in the sliding direction, is smaller than the inclination angle ⁇ of the ascending slant surface 25 of a neighboring positioning unit which adjoins the corresponding positioning unit at its front side in the sliding direction.
  • Fig. 2 shows the overall configuration of the slide switch 1.
  • the slide switch 1 includes the pair of rails 2 and the slider 3 sliding between the rails 2.
  • Each of the rails 2 guides the movement of the slider 3 to allow the slider 3 to be reciprocated in the direction along the rails 2 while determining the positioning of the slider 3 in the sliding direction.
  • the two rails 2 are connected to each other by a member (not shown) (e.g., by a housing of the electric power tool).
  • Each of the rails 2 disposed parallel to each other includes a positioning region for positioning the slider 3 in the sliding direction.
  • the positioning region four protrusions 22 protruding toward the slider 3 are formed in each of the rails 2 along the sliding direction of the slider 3.
  • Recesses 23 are formed between the neighboring protrusions 22. That is to say, in the positioning region, a plurality of recesses 23 facing toward the slider 3 is formed side by side along the sliding direction of the slider 3. Thus, in the illustrated example, there are three recesses 23 in total.
  • the slider 3 includes a pair of arm portions 32a and 32b extending substantially parallel to each other along the sliding direction of the slider 3 (along the longitudinal direction of the rails 2).
  • Each of the arm portions 32a and 32b includes a projection 31 provided at the outer surface of the tip end thereof facing the corresponding rail 2.
  • the positioning of the slider 3 in the sliding direction is performed by fitting the projection 31 to one of the recesses 23 of the rails 2.
  • reference symbol 33 designates a spring for bringing spring pieces 33a and 33b formed in the opposite end portions thereof into contact with the arm portions 32a and 32b and biasing the respective arm portions 32a and 32b toward the rails 2. For that reason, the projections 31 are fitted to the recesses 23 in a state that they are biased by the elasticity of the arm portions 32a and 32b and the elasticity of the spring 33.
  • a section around each one of the recesses 23 defines a positioning unit and the positioning region includes at least three positioning units.
  • the recess 23 of the positioning unit includes a descending slant surface 24 descending from the end protrusion 22 to a bottom surface 26 of the recess 23 along the sliding direction of the slider 3 and an ascending slant surface 27 ascending from the bottom surface 26 of the recess 23 to the neighboring protrusion 22 next to the end protrusion 22 in the sliding direction.
  • the aforementioned positioning unit includes a front end wall (ascending slant surface) and a rear end wall (descending slant surface) of the recess 23 in the sliding direction.
  • the positioning unit includes a descending slant surface 24 and an ascending slant surface 25.
  • the positioning unit includes a descending slant surface 28 and an ascending slant surface 25.
  • one positioning unit includes an ascending slant surface and a descending slant surface positioned at the front end and the rear end in one recess 23 in the sliding direction, respectively.
  • the inclination angle ⁇ of the ascending slant surface 27 of the positioning unit which is located two or more units before the final positioning unit located at the front end position in the sliding direction is set smaller than the inclination angle ⁇ of the ascending slant surface 25 of the neighboring positioning unit which adjoins the corresponding positioning unit at its front side in the sliding direction.
  • one slant surface 27 (or the slant surface 28) adjoining another recess 23 through the protrusion 22 differs in inclination angle from the other slant surface 25 (or the slant surface 24).
  • the slant surfaces 24 and 25 of the opposite side walls thereof have the same inclination angle.
  • the inclination angle ⁇ of the slant surface 27 (the slant surface 28) joined to the central recess 23 through the protrusion 22 is set smaller than the inclination angle ⁇ of other slant surfaces 24 and 25.
  • reference symbol 26 designates the bottom surface of the recess 23 as mentioned above. However, the recess 23 may not have the bottom surface 26.
  • the projection 31 is moved to the central recess 23 by sliding the slider 3 in a direction indicated by an arrow from the state in which the projection 31 is fitted to the recess 23 located at one end of the corresponding rail 2 as shown in Fig. 1A , the projection 31 moves along the slant surface 27 whose inclination angle ⁇ is gentle. At this time, the projection 31 climbs over the protrusion while moving inwardly against the biasing force of the spring. Thereafter, the projection 31 is fitted to the central recess 23.
  • the force required at this time may be about 70% of the force required in moving the projection 31 along the slant surfaces 24 and 25 having the inclination angle ⁇ .
  • the projection 31 is positioned and held in the central recess 23.
  • the projection 31 fitted to the central recess 23 is moved to one of the recesses 23 positioned at the longitudinal opposite ends of the corresponding rail 2, the projection 31 can be fitted to one of the opposite end recesses 23 although the inclination angle ⁇ of the slant surfaces 24 and 25 is large. This is because the slide stroke of the slider 3 is separately restricted.
  • the modified example of the present embodiment differs from the embodiment shown in Fig. 1 only in terms of the number of recesses. Therefore, description on the parts other than the recesses will be omitted.
  • Each of the rails 2 includes a positioning region for positioning the slider 3 in the sliding direction.
  • the positioning region of each of the rails 2 shown in Fig. 4 includes six positioning units.
  • First to six recesses 23a to 23f are provided in each of the rails 2.
  • the inclination angle of the ascending slant surface of the fourth positioning unit (the fourth recess 23d), which is located two units before the sixth positioning unit (the sixth recess 23f) located at the front end position in the sliding direction of the slider 3 (the left-to-right direction in Fig. 4 ), is ⁇ 4.
  • the inclination angle of the ascending slant surface of the fifth positioning unit (the fifth recess 23e), which adjoins the fourth positioning unit (the fourth recess 23d) at the front side of the fourth positioning unit in the sliding direction, is ⁇ .
  • the inclination angle ⁇ 4 is smaller than the inclination angle ⁇ .
  • the inclination angle of the ascending slant surface of the third positioning unit (the third recess 23c), which is located three units before the sixth positioning unit (the sixth recess 23f) located at the front end position in the sliding direction, is ⁇ 3.
  • the inclination angle of the ascending slant surface of the fourth positioning unit (the fourth recess 23d), which adjoins the third positioning unit (the third recess 23c) at the front side of the third positioning unit in the sliding direction, is ⁇ 4.
  • the inclination angle ⁇ 3 is smaller than the inclination angle ⁇ 4.
  • the inclination angle of the ascending slant surface of the second positioning unit (the second recess 23b), which is located four units before the sixth positioning unit (the sixth recess 23f) located at the front end position in the sliding direction, is ⁇ 2.
  • the inclination angle of the ascending slant surface of the third positioning unit (the third recess 23c), which adjoins the second positioning unit (the second recess 23b) at the front side of the second positioning unit in the sliding direction, is ⁇ 3.
  • the inclination angle ⁇ 2 is smaller than the inclination angle ⁇ 3.
  • the inclination angle of the ascending slant surface of the first positioning unit (the first recess 23a), which is located five units before the sixth positioning unit (the sixth recess 23f) located at the front end position in the sliding direction, is ⁇ 1.
  • the inclination angle of the ascending slant surface of the second positioning unit (the second recess 23b), which adjoins the first positioning unit (the first recess 23a) at the front side of the first positioning unit in the sliding direction, is ⁇ 2.
  • the inclination angle ⁇ 1 is smaller than the inclination angle ⁇ 2.
  • the inclination angles of the ascending slant surfaces of the first to fifth recesses 23a to 23e are ⁇ 1, ⁇ 2, ⁇ 3, ⁇ 4 and ⁇ , respectively, and have a relationship of ⁇ 1 ⁇ 2 ⁇ 3 ⁇ 4 ⁇ . Accordingly, if the inclination angles ⁇ 1, ⁇ 2, ⁇ 3, ⁇ 4 and ⁇ are assumed to be 30°, 35°, 40°, 45° and 50°, respectively, the force required in moving the slider 3 from the first recess 23a to the second recess 23b is smaller than the force required in moving the slider 3 from the second recess 23b to the third recess 23c.
  • the force required in moving the slider 3 from the second recess 23b to the third recess 23c is smaller than the force required in moving the slider 3 from the third recess 23c to the fourth recess 23d.
  • the force required in moving the slider 3 from the third recess 23c to the fourth recess 23d is smaller than the force required in moving the slider 3 from the fourth recess 23d to the fifth recess 23e.
  • the inclination angle of the ascending slant surface of the third positioning unit (the third recess 23c), which is located two units before the first positioning unit (the first recess 23a) located at the front end position in the reverse sliding direction of the slider 3 (the right-to-left direction in Fig. 4 ), is ⁇ 4.
  • the inclination angle of the ascending slant surface of the second positioning unit (the second recess 23b), which adjoins the third positioning unit (the third recess 23c) at the front side of the third positioning unit in the reverse sliding direction, is ⁇ .
  • the inclination angle ⁇ 4 is smaller than the inclination angle ⁇ .
  • the operation in the reverse sliding direction is similar to the operation in the forward sliding direction. Therefore, description on the operation in the reverse sliding direction will be omitted.
  • the side wall not adjoining another recess 23 may not be formed into a slant surface but may be formed into a right-angled wall.
  • Fig. 3 shows an electric power tool provided with the aforementioned slide switch 1.
  • the slide switch 1 disposed on the upper surface of the electric power tool is used as a switch for switching speed reduction ratios in the electric power 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)

Claims (1)

  1. Ein Schiebeschalter (1) für ein Elektrowerkzeug, der Folgendes umfasst:
    ein Paar Schienen (2);
    einen Schieber (3), der dazu konfiguriert ist, zwischen den Schienen (2) zu gleiten, um eine Umschaltung eines Drehzahlminderungsverhältnisses durchzuführen,
    wobei jede der Schienen (2) einen Positionierungsbereich enthält, um den Schieber (3) in einer Gleitrichtung zu positionieren;
    wobei der Schieber (3) ein Paar Armabschnitte (32a, 32b) beinhaltet, die sich im Wesentlichen zueinander entlang der Gleitrichtung parallel erstrecken, und wobei jeder der Armabschnitte (32a, 32b) einen Vorsprung (31) aufweist, der in Richtung einer entsprechenden Schiene (2) vorgespannt ist, um mit dem Positionierungsbereich Kontakt herzustellen;
    wobei der Positionierungsbereich eine Vielzahl an Vertiefungen (23) beinhaltet, die auf einer Oberfläche der entsprechenden Schiene (2) nebeneinander angeordnet sind, die dem Schieber (3) zugewandt ist;
    wobei ein Abschnitt um jeden der Vertiefungen (23) eine Positionierungseinheit definiert, und wobei der Positionierungsbereich mindestens drei Positionierungseinheiten enthält;
    dadurch gekennzeichnet, dass
    in jeder der Vertiefungen (23) die Positionierungseinheit eine aufsteigende Neigungsfläche (27 oder 25) beinhaltet, die in Gleitrichtung an einem vorderen Ende positioniert ist, und eine absteigende Neigungsfläche (24 oder 28) beinhaltet, die in Gleitrichtung an einem hinteren Ende positioniert ist; und
    wobei ein Neigungswinkel der aufsteigenden Neigungsfläche (27) von einer der Positionierungseinheiten, die zwei oder mehr Einheiten vor der letzten der Positionierungseinheiten liegt, die in Gleitrichtung an der vorderen Endposition liegen, kleiner ist als ein Neigungswinkel der aufsteigenden Neigungsfläche (25) von einer anderen der Positionierungseinheiten, die an die Positionierungseinheit anschließt, die zwei oder mehr Einheiten vor der letzten der Positionierungseinheiten liegt, in Gleitrichtung an der vorderen Seite.
EP12880607.2A 2011-09-20 2012-08-02 Schiebeschalter für elektrowerkzeug Active EP2759380B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011204995A JP5821032B2 (ja) 2011-09-20 2011-09-20 電動工具用スライドスイッチ
PCT/IB2012/001483 WO2014006438A1 (ja) 2011-09-20 2012-08-02 電動工具用スライドスイッチ

Publications (3)

Publication Number Publication Date
EP2759380A1 EP2759380A1 (de) 2014-07-30
EP2759380A4 EP2759380A4 (de) 2016-04-06
EP2759380B1 true EP2759380B1 (de) 2017-10-04

Family

ID=48473296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12880607.2A Active EP2759380B1 (de) 2011-09-20 2012-08-02 Schiebeschalter für elektrowerkzeug

Country Status (4)

Country Link
EP (1) EP2759380B1 (de)
JP (1) JP5821032B2 (de)
CN (1) CN103826804B (de)
WO (1) WO2014006438A1 (de)

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
DE102016213160A1 (de) * 2015-07-31 2017-02-02 Robert Bosch Gmbh Handwerkzeugmaschine
DE102018126627A1 (de) * 2018-10-25 2020-04-30 Valeo Schalter Und Sensoren Gmbh Schiebeschalter für ein Kraftfahrzeug
CN110731540A (zh) * 2019-10-24 2020-01-31 深圳市惟雾科技有限公司 电子烟
US11407098B2 (en) * 2019-11-26 2022-08-09 Stmicroelectronics S.R.L. Smart push button device utilizing MEMS sensors
IT202000009937A1 (it) 2020-05-05 2021-11-05 St Microelectronics Srl Metodo di controllo di un apparecchio elettronico eseguito tramite il calcolo di un angolo di apertura, relativo apparecchio elettronico e prodotto software
CN113608576B (zh) 2020-05-05 2024-06-25 意法半导体股份有限公司 电子装置控制方法、其电子装置和软件产品

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JPH05217464A (ja) * 1992-02-04 1993-08-27 Shinmei Denki Kk プッシュ機構付きスライドスイッチ
JPH07335073A (ja) 1994-06-09 1995-12-22 Matsushita Electric Ind Co Ltd スライドスイッチ
JPH09245569A (ja) * 1996-03-04 1997-09-19 T-Antee:Kk スライドスイッチ
US5824977A (en) * 1995-09-04 1998-10-20 Kabushiki Kaisha T An T Slide switch
US6759608B2 (en) * 2002-08-02 2004-07-06 Defond Manufacturing Limited Electrical switch
JP2004164936A (ja) * 2002-11-11 2004-06-10 Alps Electric Co Ltd スライドスイッチ
DE20305224U1 (de) * 2003-03-31 2003-06-05 Hilti Ag Handwerkzeug mit Funktionsstufenanzeige
DE102006035386A1 (de) * 2006-10-31 2008-05-08 Hilti Ag Elektrowerkzeug mit mehrstufigem Getriebe
US8251158B2 (en) * 2008-11-08 2012-08-28 Black & Decker Inc. Multi-speed power tool transmission with alternative ring gear configuration
JP2011113931A (ja) * 2009-11-30 2011-06-09 Yazaki Corp スライドスイッチ

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
JP5821032B2 (ja) 2015-11-24
CN103826804B (zh) 2016-06-29
CN103826804A (zh) 2014-05-28
JP2013066944A (ja) 2013-04-18
EP2759380A4 (de) 2016-04-06
WO2014006438A8 (ja) 2014-03-13
WO2014006438A1 (ja) 2014-01-09
EP2759380A1 (de) 2014-07-30

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