EP1223593A2 - Schalter - Google Patents

Schalter Download PDF

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Publication number
EP1223593A2
EP1223593A2 EP02000806A EP02000806A EP1223593A2 EP 1223593 A2 EP1223593 A2 EP 1223593A2 EP 02000806 A EP02000806 A EP 02000806A EP 02000806 A EP02000806 A EP 02000806A EP 1223593 A2 EP1223593 A2 EP 1223593A2
Authority
EP
European Patent Office
Prior art keywords
contact
arm
housing
bottom face
accommodating section
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.)
Withdrawn
Application number
EP02000806A
Other languages
English (en)
French (fr)
Other versions
EP1223593A3 (de
Inventor
Toshihiro Alps Electric Co. Ltd Tanaka
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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of EP1223593A2 publication Critical patent/EP1223593A2/de
Publication of EP1223593A3 publication Critical patent/EP1223593A3/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/245—Spring wire contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/28—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/16—Driving mechanisms

Definitions

  • the present invention relates to a switch device for use as a detection switch to be used in driving a mechanism, such as an electronic device, and more particularly to the structure of a contact using a coil spring, plate spring or the like.
  • Known structures of a detection switch include what uses a coil spring or a plate spring in the contact.
  • a coil spring is used in the movable contact and an arm is extended from this coil spring to be use as the movable contact and the coil spring is also used as the springing member to cause a manipulating lever to return to its original position.
  • the wound coil of the coil spring is fixed to the housing or the like and connected to a common contact arranged on the inner bottom face.
  • the arm extended from the coil has a bend, and this bend and the free end of the arm are formed as the movable contact.
  • a clip-shaped switching contact consisting of a plate spring, rising upright from the inner bottom face of the housing, so that the suppression of the arm by the manipulating lever moves the movable contact to be connected to the switching contact.
  • the locus of the movement of movable contact takes on an arc shape having its fulcrum at the point where the arm extends from the coil, and ranges of action (sliding ranges) arise in the contact of the manipulating lever and the connecting portion to the switching contact.
  • An object of the present invention is to solve the problems noted above and provide a detection switch structure permitting a reduction in height of a switch body while securing adequate springing performance characteristics of a switching contact formed of a clip-shaped plate spring and enabling the operation to be stabilized by causing a manipulating lever and a movable contact consisting of a coil spring to turn around the same center.
  • a switch device provided with a housing having an accommodating section; a common contact and a switching contact arranged along with each other on an inner bottom face of the accommodating section; a movable contact consisting of a coil spring, having a first arm in contact with the common contact all the time and a second arm capable of coming into and going out of contact with the switching contact; a manipulating lever having an operating section and rotatably holding the second arm of the movable contact; and a cover covering a top of the housing, wherein the switching contact has a contact bent in a clip shape with which the second arm is to be in sliding contact, wherein this contact is formed in parallel to the inner bottom face of the accommodating section, and wherein the contact is provided with a guide, projecting above the contact, for guiding the sliding contact of the second arm.
  • the clip-shaped contact is arranged in parallel to the inner bottom face of the accommodating section by, after being formed upright by cutting and bending one planar metallic plate, bending it at 90 degrees over the metallic plate.
  • a groove permitting the second arm to turn is formed in a metallic plate matching the contact of the switching contact, and this groove is protruded downward from the inner bottom face of the accommodating section and exposed on a bottom face side of the housing.
  • the common contact is provided with a bend to come into contact with the first arm, and this bend is protruded downward from the inner bottom face of the accommodating section and exposed on the bottom face side of the housing.
  • a top face of the cover is provided with a push-through hole through which the operating section of the manipulating lever projects, and on one side of this push-through hole a dust-shielding vertical wall is formed by notching part of the top plate and bending it inward.
  • the manipulating lever and the movable contact are arranged in the housing in such a manner that a position of an axial center of a rotation shaft by which the manipulating lever is rotatably borne becomes the same rotational center as a position of an axial center of the coil of the movable contact consisting of a coil spring.
  • FIG. 1 shows an exploded perspective view of a detection switch
  • Fig. 2 a sectional profile of a state in which a manipulating lever is not yet operated
  • Fig. 3 a sectional profile of a state in which the manipulating lever is operated to bring a movable contact into contact with a switching contact
  • Fig. 4 a sectional profile of a state in which the manipulating lever is pressed in to connect the movable contact to the switching contact
  • Fig. 5 a sectional profile of a state in which the movable contact is in contact with a common contact.
  • a housing 1 is formed of an insulator, such as synthetic resin, in a box shape with an accommodating section 1a inside. At the center of the inner bottom face of the accommodating section 1a of this housing 1 are provided a common contact 2 and a switching contact 3 along with each other, each consisting of an electroconductive metallic plate and formed by insert molding or otherwise.
  • the common contact 2 has a base 2a punched out of a metallic plate into a substantially planar shape by pressing or otherwise; and a bend 2b slightly bent downward, provided at one end of this base 2a and in contact with a first arm 4b of a movable contact 4 to be described afterwards, while at the other end of the base 2a is formed a connection terminal 2c guided outward from the housing 1 and connected to the circuit pattern or the like of a circuit board of an electronic device (not shown) .
  • the bend 2b being in a state of projecting downward from the inner bottom face of the accommodating section 1a, is embedded in the housing 1, and the bottom side of this bend 2b is exposed on the bottom side of the housing 1.
  • the switching contact 3 has a base 3a similarly punched out of a metallic plate into a substantially planar shape by pressing or otherwise; a clip-shaped contact 3b formed over the top face of this base 3a, bent in parallel to the inner bottom face of the accommodating section 1a and being in contact with a second arm 4c of the movable contact 4 to be described afterwards.
  • a connection terminal 3c guided outward from the housing 1 and connected to the circuit pattern or the like of a circuit board of an electronic device (not shown).
  • the clip-shaped contact 3b is arranged to be in parallel to the inner bottom face of the accommodating section 1a by, after being formed upright by cutting and bending a single planar metallic plate, bending at 90 degrees over the base 3a.
  • the arrangement of the clip-shaped contact 3b in parallel to the inner bottom face of the accommodating section 1a (laterally) makes it possible to reduce the height of the housing 1 and accordingly the overall size of the device without sacrificing the springing performance characteristics of the contact 3b, including the contact pressure and fatigue strength.
  • the contact 3b is provided with a guide 3d projecting over the contact 3b to guide the sliding contact of the second arm 4c of the movable contact 4 to be described afterwards. Formation of this guide 3d ensures the arrangement of the second arm 4c of the movable contact 4 in slidable contact with the contact 3b even where the contact 3b is disposed in parallel to the inner bottom face of the accommodating section 1a (laterally).
  • a groove 3e to permit rotation of the second arm 4c of the movable contact 4 to be described afterwards.
  • This groove 3e in a state in which it projects downward from the inner bottom face of the accommodating section 1a, is embedded in the housing 1, and the under side of this groove 3e is exposed on the bottom face side of the housing 1.
  • the bend 2b of the common contact 2, which is to be in contact with the first arm 4b of the movable contact 4 to be described afterwards and the groove 3e of the switching contact 3, which is to permit rotation of the second arm 4c of the movable contact 4 to be described afterwards, are embedded in the housing 1, both projecting downward from the inner bottom face of the accommodating section 1a.
  • the under sides of these bend 2b and groove 3e are formed exposed on the bottom face side of the housing 1, it is possible to reduce the height of the housing 1 while securing a sufficient shiftable quantity for an operating section 5b of a manipulating lever 5 to be described afterwards.
  • shaft grooves 1d in which the rotation shafts 5c of the manipulating lever 5 to be described afterwards are rotatably borne are formed, and the configuration is such that the position of the axial center of the rotation shafts 5c of the manipulating lever 5 borne by these shaft grooves 1d becomes the same rotational center as the axial center of the coil 4a of the movable contact 4, positioned by the central projection 1b and the guide walls 1c and 1c.
  • housing 1 On the mutually opposite outer sides of the housing 1 are formed a pair each of engaging projections 1e and 1e, and pairs of notches 6c and 6c formed into side plates 6b of a cover 6 to be described afterwards are engaged with these engaging projections 1e and le.
  • the movable contact 4 is formed by winding an electroconductive metallic wire into a coil, and this movable contact 4 is provided with a coil 4a, and the first arm 4b and the second arm 4c extending substantially in parallel from the two ends of the coil 4a.
  • the positioning of the movable contact 4 by being accommodated by the central projection 1b and the guide walls 1c and 1c of the accommodating section 1a serves to keep the first arm 4b in contact with the bend 2b of the common contact 2 all the time and the second arm 4c opposite the contact 3b of the switching contact 3 to be capable of coming into and going out of contact with each other.
  • the manipulating lever 5, formed of an insulator such as synthetic resin, has a substantially planar base 5a, the operating section 5b formed projecting from one end of this base 5a, and a pair of rotation shafts 5c and 5c formed on two sides of the other end of this operating section 5b.
  • These rotation shafts 5c and 5c are borne by the shaft grooves 1d and 1d formed in the accommodating section 1a of the housing 1 and rotatably hold on the under face of the base 5a the second arm 4c of the movable contact 4, so that the second arm 4c come into or go away from the contact 3b of the switching contact 3 with the turning of the manipulating lever 5.
  • the operating section 5b of the manipulating lever 5 may be formed in a flat (planar) shape as shown in Fig. 1 and pressed in so that a member of the set to use the switch enter into the inside of the switch, and in this case the manipulating lever 5 will have no projection, making it possible to reduce the thickness of the switch body.
  • the cover 6, formed by punching and bending a metallic plate, consists of a top plate 6a covering the accommodating section 1a of the housing 1 and a pair of side plates 6b and 6b hung along the two sides of this top plate 6a.
  • the top plate 6a is provided with a push-through hole 6c through which the operating section 5b of the manipulating lever 5 is inserted and projects, and on one side of this push-through hole 6c is provided, as shown in Fig. 1 and Fig. 5, an inward bent dust-shielding vertical wall 6d formed by notching part of the top plate 6a.
  • This vertical wall 6d is formed in a position where the contact 3b of the switching contact 3 arranged in the accommodating section 1a of the housing 1 would otherwise communicate with the outside through the push-through hole 6c, and prevents dust and the like from invading the contact 3b.
  • the side plates 6b are formed a pair of notches 6e and 6e, and the engagement of these notches 6e and 6e with the engaging projections 1e and 1e formed on outer sides of the housing 1 enables the cover 6 to be fitted to the top face of the housing 1.
  • Fig. 2 illustrates a state in which the manipulating lever 5 is not yet operated.
  • the manipulating lever 5 is projected out of the top plate 6a of the cover 6 by the energizing force of the second arm 4c of the movable contact 4.
  • the first arm 4b of the movable contact 4 is in contact with the bend 2b of the common contact 2 all the time in this state, wherein the second arm 4c of the movable contact 4 is detached from the contact 3b of the switching contact 3 and the switch is in a turned-off state.
  • the manipulating lever 5 When the manipulating lever 5 is suppressed from this state by a drive mechanism or the like (not shown), the manipulating lever 5 turns around the rotation shaft 5c clockwise in the diagram as shown in Fig. 3, and as the second arm 4c of the movable contact 4 comes into contact with the guide 3d of the switching contact 3, the switch is turned on.
  • the manipulating lever 5 As the manipulating lever 5 is further suppressed from this state by a drive mechanism or the like, the manipulating lever 5 is turned further clockwise as shown in Fig. 4, and as the second arm 4c of the movable contact 4, guided by the guide 3d, comes into contact with the contact 3b, the common contact 2 and the switching contact 3 are connected to each other via the first arm 4b of the movable contact 4 and the second arm 4c, the switch is turned on without fail.
  • the bend 2b of the common contact 2 coming into contact with the first arm 4b of the movable contact 4 and the groove 3e of the switching contact 3 for permitting the second arm 4c of the movable contact 4 to turn are embedded in the housing 1 in a state wherein both of them protrude downward from the inner bottom face of the accommodating section 1a of the housing 1.
  • the under sides of these bend 2b and the groove 3e are formed exposed on the bottom face side of the housing 1, the height of the housing 1 can be reduced without sacrificing the shiftable quantity of the operating section 5b of the manipulating lever 5, making it possible to reduce the overall size of the switch.
  • the manipulating lever 5 When the suppression by the drive mechanism (not shown) is released from the state illustrated in Fig. 4, the manipulating lever 5 is turned counterclockwise in the diagram by the energizing force of the movable contact 4 consisting of a coil spring and returns to its initial position shown in Fig. 2. This brings the second arm 4c and the contact 3b of the switching contact 3 out of contact with each other to turn off the switch.
  • the switch device is provided with a housing having an accommodating section; a common contact and a switching contact arranged along with each other on the inner bottom face of the accommodating section; a movable contact consisting of a coil spring, having a first arm in contact with the common contact all the time and a second arm capable of coming into and going out of contact with the switching contact; a manipulating lever having an operating section and rotatably holding the second arm of the movable contact; and a cover covering the top of the housing, wherein the switching contact has a contact bent in a clip shape with which the second arm is to be in sliding contact, this contact is formed in parallel to the inner bottom face of the accommodating section, and the contact is provided with a guide, projecting above the contact, for guiding the sliding contact of the second arm. Accordingly, it is made possible to reduce the product size and, even where the contact is disposed in parallel to the inner bottom face of the accommodating section (laterally), to ensure the arrangement of the second arm of the movable contact in s
  • the clip-shaped contact is arranged in parallel to the inner bottom face of the accommodating section by, after being formed upright by cutting and bending one planar metallic plate, bending it at 90 degrees over the metallic plate, it is made possible to reduce the height of the housing and accordingly the overall size of the device without sacrificing the springing performance characteristics of the contact, including the contact pressure and fatigue strength.
  • the height of the housing can be reduced without sacrificing the shiftable quantity of the operating section of the manipulating lever, making it possible to reduce the overall size of the switch.
  • the common contact is provided with a bend to come into contact with the first arm, and this bend is protruded downward from the inner bottom face of the accommodating section and exposed on the bottom face side of the housing, the height of the housing can be reduced without sacrificing the shiftable quantity of the operating section of the manipulating lever, making it possible to reduce the overall size of the switch.
  • the top face of the cover is provided with a push-through hole through which the operating section of the manipulating lever projects, and on one side of this push-through hole a dust-shielding vertical wall is formed by notching part of the top plate and bending it inward, the contact of the switching contact arranged in the accommodating section of the housing is prevented from communicating with the outside through the push-through hole, and dust or the like is prevented from invading the contact.
  • the manipulating lever and the movable contact are arranged in the housing in such a manner that the position of the axial center of the rotation shaft by which the manipulating lever is rotatably borne becomes the same rotational center as the position of the axial center of the coil of the movable contact consisting of a coil spring, it is possible to avoid sliding friction of the contacts between the manipulating lever and the second arm of the movable contact, and accordingly the operating ease and the reliability of contacts are enhanced.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)
  • Contacts (AREA)
EP02000806A 2001-01-15 2002-01-14 Schalter Withdrawn EP1223593A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001006286 2001-01-15
JP2001006286A JP3923732B2 (ja) 2001-01-15 2001-01-15 スイッチ装置

Publications (2)

Publication Number Publication Date
EP1223593A2 true EP1223593A2 (de) 2002-07-17
EP1223593A3 EP1223593A3 (de) 2004-03-17

Family

ID=18874192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02000806A Withdrawn EP1223593A3 (de) 2001-01-15 2002-01-14 Schalter

Country Status (5)

Country Link
EP (1) EP1223593A3 (de)
JP (1) JP3923732B2 (de)
KR (1) KR100462031B1 (de)
CN (1) CN1193391C (de)
TW (1) TW514940B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1471548A2 (de) * 2003-04-22 2004-10-27 Trafimet S.P.A. Betätigungsschalter für Elektrowerkzeug
ES2224867A1 (es) * 2002-08-14 2005-03-01 Braun Gmbh Pulsador.
CN102426962A (zh) * 2011-11-28 2012-04-25 余正明 一种插卡检测开关
ES2584952A1 (es) * 2016-06-02 2016-09-30 Simon, S.A.U. Interruptor eléctrico
ES2585212A1 (es) * 2016-06-02 2016-10-04 Simon, S.A.U. Interruptor eléctrico
EP3312861A1 (de) * 2016-10-24 2018-04-25 C&K Components SAS Elektrischer drucktastenschnappschalter mit mitteln zur erkennung der position der drucktaste und/oder des antriebselements

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005122127A (ja) * 2003-09-26 2005-05-12 Kyocera Mita Corp 液体現像用電子写真感光体
CN101086660B (zh) * 2006-06-09 2010-05-12 鸿富锦精密工业（深圳）有限公司 开闭检测装置及使用该开闭检测装置的控制系统
JP4692410B2 (ja) 2006-06-27 2011-06-01 オムロン株式会社 スイッチ
TWI385694B (zh) 2007-11-07 2013-02-11 Htc Corp 可攜式電子裝置
TWI398753B (zh) 2007-12-06 2013-06-11 Htc Corp 手持電子裝置
JP5088264B2 (ja) * 2008-08-05 2012-12-05 オムロン株式会社 スイッチ

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540536A1 (de) * 1995-10-31 1997-05-07 Eaton Controls Gmbh Elektrischer Kontaktschalter
US5912445A (en) * 1996-11-08 1999-06-15 Matsushita Electric Works, Ltd. Miniature pushbutton switch with coil spring contact

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW345673B (en) * 1996-07-08 1998-11-21 Alps Electric Co Ltd Switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540536A1 (de) * 1995-10-31 1997-05-07 Eaton Controls Gmbh Elektrischer Kontaktschalter
US5912445A (en) * 1996-11-08 1999-06-15 Matsushita Electric Works, Ltd. Miniature pushbutton switch with coil spring contact

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2224867A1 (es) * 2002-08-14 2005-03-01 Braun Gmbh Pulsador.
EP1471548A2 (de) * 2003-04-22 2004-10-27 Trafimet S.P.A. Betätigungsschalter für Elektrowerkzeug
EP1471548A3 (de) * 2003-04-22 2006-05-03 Trafimet S.P.A. Betätigungsschalter für Elektrowerkzeug
CN102426962A (zh) * 2011-11-28 2012-04-25 余正明 一种插卡检测开关
CN102426962B (zh) * 2011-11-28 2014-02-26 余正明 一种插卡检测开关
ES2584952A1 (es) * 2016-06-02 2016-09-30 Simon, S.A.U. Interruptor eléctrico
ES2585212A1 (es) * 2016-06-02 2016-10-04 Simon, S.A.U. Interruptor eléctrico
EP3312861A1 (de) * 2016-10-24 2018-04-25 C&K Components SAS Elektrischer drucktastenschnappschalter mit mitteln zur erkennung der position der drucktaste und/oder des antriebselements
US10707031B2 (en) 2016-10-24 2020-07-07 C&K Components S.A.S. Electrical pushbutton snap switch with means for identifying the position of the pushbutton and/or of the driving member

Also Published As

Publication number Publication date
TW514940B (en) 2002-12-21
KR20020061492A (ko) 2002-07-24
KR100462031B1 (ko) 2004-12-16
JP2002216589A (ja) 2002-08-02
CN1366319A (zh) 2002-08-28
EP1223593A3 (de) 2004-03-17
JP3923732B2 (ja) 2007-06-06
CN1193391C (zh) 2005-03-16

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