EP0778595B1 - Sicherheitsschalter mit Schlüssel - Google Patents

Sicherheitsschalter mit Schlüssel Download PDF

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Publication number
EP0778595B1
EP0778595B1 EP96402610A EP96402610A EP0778595B1 EP 0778595 B1 EP0778595 B1 EP 0778595B1 EP 96402610 A EP96402610 A EP 96402610A EP 96402610 A EP96402610 A EP 96402610A EP 0778595 B1 EP0778595 B1 EP 0778595B1
Authority
EP
European Patent Office
Prior art keywords
roller
control
unlocking
key
rollers
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.)
Expired - Lifetime
Application number
EP96402610A
Other languages
English (en)
French (fr)
Other versions
EP0778595A1 (de
Inventor
Hugues Da Dalt
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP0778595A1 publication Critical patent/EP0778595A1/de
Application granted granted Critical
Publication of EP0778595B1 publication Critical patent/EP0778595B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H13/04—Cases; Covers
    • H01H13/08—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H01H27/002—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings wherein one single insertion movement of a key comprises an unlocking stroke and a switch actuating stroke, e.g. security switch for safety guards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H01H27/002—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings wherein one single insertion movement of a key comprises an unlocking stroke and a switch actuating stroke, e.g. security switch for safety guards
    • H01H2027/005—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings wherein one single insertion movement of a key comprises an unlocking stroke and a switch actuating stroke, e.g. security switch for safety guards the key receiving part having multiple openings to allow keys from different directions to operate the switch

Definitions

  • the present invention relates to an electric key safety switch comprising a housing surmounted by a control head and housing organs of electrical contact, the control head comprising a control roller likely to act on the contact members, as well as an unlocking part associated with the control roller to unlock it, the unlocking part and the control roller being controlled by the key when it is inserted into the head.
  • Safety switches of this type are well known (see par example documents DE-33 02631 and EP-507 842).
  • the roller is likely to rotate around an axis to control the contact members via a pusher and the control head has at least one slot for the key in a general direction perpendicular to the axis of rotation of the roller.
  • the object of the invention is therefore to give the switch a high degree inviolability and reliability, by means of a mechanism authorizing the introduction of the control key in a direction orthogonal to the axis of the roller control or in two directions orthogonal to each other and to the axis of rotation of the pebble.
  • a control roller lock is housed in the head and is acted upon elastically to engage in a notch of the control roller and the part release is applicable by means of a cam surface against the latch for the release notch when inserting the key. It should be noted that blocking the control roller in safety or rest position is due to the lock and that the release of the control roller is effected by the action of the release piece on the lock, so indirectly.
  • the release piece is a rotary roller adjacent to the roller control, coaxial with it and having on its periphery at least one notch for receiving the key, the shapes of the notches on the control roller and of the release roller and the control key being such that the key operates in start of introduction of the release roller before the control roller.
  • the notch of the release roller then extends for example over a greater angle than the roller ordered.
  • two release rollers can be provided arranged symmetrically with respect to a central control roller, the latter being connected to the pusher by means of a link hinged to the central roller of and push button.
  • two rollers are provided. release arranged symmetrically with respect to a central control roller, the latter being connected by a pin connection and control groove to the butt of a slide with a tail constituting the pusher, the guide of the slide being made at the same time by its tail in an orifice of the control head or of the housing and by cooperation of a guide groove of its stock with the shaft or the axis of rotation of the control roller.
  • the control roller can advantageously be consisting of two rollers, each paired on the outside with a roller release and coupled together on the inside by the axis of the link or slide.
  • the stock in an embodiment with two twin control rollers, can be placed in a central position and, in an embodiment with a single central roller, control, the stock can be a fork having arms provided with grooves and guide grooves, these arms laterally enveloping the release rollers.
  • the safety switch illustrated in FIG. 1 comprises on the one hand a box 10 elongated in a direction Z and comprising a block of electrical contacts 11 and secondly a control head 12 of square shape, fixed on the housing 10 of so that the user can choose four different positions offset by pivoting 90 ° around an axis Z1 of direction Z.
  • the head 12 is assembled to the housing by any known means allowing pivoting to the desired position and maintaining in this position.
  • the control head 12 has in one of its lateral faces 13 a slot 14 and in its upper face 15 opposite the block 11 an identical slot 16; the slots 14 and 16 are dimensioned to allow passage through one or more the other of a flat control key 17 movable respectively according to a direction Y or Z depending on the movement of a support of this key (not represented).
  • the key 17 is for example rigidly or oscillatingly linked to a door envelope for electrical or machine equipment to ensure correlation between closing this door and authorizing the operation of the equipment or the machine given by the contact block.
  • the control key 17 has a shape particular to ash the safety switch as far as possible.
  • She has a known transverse control strip 18, perpendicular to its direction of movement, to cooperate with a roller control 20 rotatably mounted in the head 12 by means of a shaft 21 of axis X perpendicular to the Y and Z directions and resting in bearings of the head.
  • the key further comprises two lateral ears 19a, 19b situated level with the bar 18 and slightly advanced therefrom to cooperate with two rollers 30a, 30b for indirect release of the control roller.
  • the release rollers 30 are thin and are housed in the control head on each side of the control roller 20, while being mounted on the same rotation shaft 21 of axis X.
  • the rollers 20, 30 have a general shape particular and similar, forming part of the same circular outline, but presenting however differences. They cooperate with a pair of respective locks 40a, 40b, mounted sliding in direction Z in housings 40c provided in the cylindrical bottom wall of the control head 12, on either side of an orifice 41 provided for the passage of a link 42 articulated on the one hand on an axis 22 of the roller control 20, on the other hand on an axis 43 of a pusher 44 guided in the part cylindrical lower part of the orifice 41 and provided for actuating the contact block 11.
  • the axis 22 is housed in a central recess 23 of the roller 20 sufficient to allow the functional travel of the link (see Figure 3). It should also be noted that the rod 42 is oriented at rest in a direction close to the axis Z1.
  • the control roller 20 has on its periphery two notches 24, 25 of identical shape.
  • the notch 24 includes a front edge 24a on which applies the front of the bar 18 of the key 17 pushed into the slot 14 according to the direction Y and a rear edge 24b to which the rear of the bar 18 is applied when you remove the key.
  • a locking notch 26 is provided on the periphery of the roller; the shape of the notch allows the latches 40a, 40b to engage therein under the effect of their return springs 45.
  • Another notch 27 is provided on the periphery of the roller for the application of a pin portion 46a of a return spring 46 common to the rollers.
  • a stopper can be located on the periphery of the roller to stop it against a shoulder A7 of the control head and thus confirm the locking position.
  • the release rollers 30 each comprise two notches 31, 32, identical in shape.
  • the notch 31 has a front edge 31a located at rest at level of the front edge 24a of the notch 24 of the roller 20; on this front 31a can apply an ear 19 of the key 17.
  • the notch 31 also has a rear edge 31b located at rest below the rear front 24b of the notch 24 (see Figure 2).
  • Has a notch 33 of each roller 30 is associated with a cam surface 33a which cooperates with a lock 40 so that it retracts as soon as the roller 30 rotates in the opposite direction timetable ( Figures 2 to 4); a notch 34 is located on the periphery of the rollers 30 at the level of the notch 27 of the roller 20, but extending over a smaller sector, to accommodate the part in pin 46a of spring 46.
  • the switch safety includes two control rollers 20a, 20b, and two release rollers 30a, 30b coupled externally to these.
  • the roller profiles are similar to those of the previous embodiment.
  • the connection of the control rollers 20a, 20b with the pusher is constituted by a slide 50 provided with a tail 51 which forms the pusher itself and a stick 52 having a light 53 in which penetrates a control shaft 54 coupling the two control rollers 20.
  • the light 53 can have any suitable shape; here it has a 53z groove L shape vertical, that is to say oriented in the direction Z, and with horizontal groove 53y, that is to say oriented in direction Y.
  • control groove 53y In the control groove 53y is engaged a control axis 54 coupling the rollers 20a, 20b so that the movement of the axis generated by the movement of the key 17 causes the displacement of the slide 50; in the guide groove 53z is engaged the shaft 21 on which the four rollers 20, 30, this forcing the slide 50 to move in translation in direction Z.
  • the shaft 21 is mounted in wall bearings 21a of the head control, these walls being sized to take up significant efforts exerted on the tree.
  • the return spring 46 of the rollers also recalls the slide 50 in high rest position. In either of the embodiments described, it is possible to also provide a specific return spring for the slide. Although two return springs 45 are associated with locks 40, it is also possible to provide for two locks a common return spring. Alternatively, the release rollers may have a slightly different diameter from that of the roller (s) ordered.
  • a return spring 56 is associated with each release roller 30; to facilitate understanding, the or the control rollers have not been shown.
  • Spring 56 is a spring of torsion mounted in a thin piece of support 60 itself nested or embedded over part of its thickness in a suitable opening 61 of the roller release to be integral in rotation; room 60 can of course be otherwise assembled with the release roller.
  • Exhibit 60 includes a body 62 profiled so as to fit into the profile of the notches 31, 32 of the roller 30 so as not to interfere with the operation of the key; the body 62 has housings 63.64 for the respective branches 57, 58 of the torsion spring 56; branch 57 applies against a fixed stop 59 of the control head 12.
  • the slide 50 houses, in a recess 51a of its tail 51 which forms the pusher associated with the contact block, the latches 40 and their return spring 45, the latches being guided by suitable conformations of the recess; the slide 50 presents in its part upper a fork-shaped stick 52 whose arms 52a, 52b envelop laterally the rollers 30.
  • Each arm comprises a vertical groove 53z of guide and a control groove 53f oriented along an axis F inclined with respect to to direction Y.
  • control head is illustrated in the rest position in FIG. 8, the control key 17, linked to the envelope or machine door, then being released of the switch and the contact block then being urged by the pusher 51.
  • the control key 17 is inserted into the slot 14 (or into the slot 16 depending on the assembly previously chosen).
  • the ears 19 of the key start by applying to the front edge 31a of the notches 31 and to cause the release rollers 30 to rotate clockwise against the force spring 46; the strip 18 is not yet applied against the front edge 24a of the notches 24 of the control rollers 20; the cam surfaces 33a of the notches 33 push the latches 40 back by compressing their return springs 45, then the strip 18 is applied against the fronts 24a (see FIG. 9) and the rollers 20 then unlocked also start to turn clockwise.
  • Key 17 continues to move forward and rotate all of the rollers 20.30 in concert; the rotation of control rollers 20 causes the rotation of the control shaft 54 which causes the lifting of the slide 50 guided by its push-tail 51 in the bore 41 and by the groove 53z against the shaft 21.
  • the pusher 51 is released from the control part 11a from the contact block 11 and releases the latter, the contacts of which switch for allow the implementation of the controlled system (see Figure 10).

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Claims (11)

  1. Schlüssel-Sicherheitsschalter, bestehend aus einem Gehäuse, auf welchem sich ein Steuerkopf befindet, welches elektrische Kontaktelemente enthält; Der Steuerkopf umfasst:
    eine Steuerscheibe (20) die imstande ist, um eine Achse (X) zu drehen, um über eine Taste des Kontaktelements zu steuern,
    mindestens einen Verbindungsschlitz (14, 16) für einen Steuerschlüssel (17), der in den Kopf (12) eingesteckt oder von diesem herausgezogen zu werden kann, dies in einer allgemeinen senkrechten Richtung zur Drehachse, um mit einer Kerbe (24, 25) zusammenzuwirken, die auf dem äußeren Umfang der Scheibe vorgesehen ist und diese zum Drehen bringt,
    ein, mit der Steuerscheibe verbundenes Entriegelungsteil, um seine Entriegelung durch Anwendung des Schlüssels gegen das besagte Teil auszulösen,
    dadurch gekennzeichnet, dass:
    eine Sperre (40) der Steuerscheibe (20) die im Kopf (12) so eingelagert ist, dass sie sich senkrecht zur Drehachse (X) der Scheibe (20) bewegt und elastisch beansprucht wird, um in einer Kerbe (26) der Scheibe einzurasten,
    das Entriegelungsteil (30), das mittels einer Nockenfläche (33) gegen die Sperre (40) angesetzt werden kann, um sie bei Einstecken des Schlüssels von der Kerbe freizulegen
  2. Schalter nach Patentanspruch 1, dadurch gekennzeichnet, dass das Entriegelungsteil eine Drehscheibe (30) ist, angrenzend an die Steuerscheibe (20), koaxial zu dieser und die auf ihrem äußeren Umfang mindestens eine Kerbe (31, 32) zur Schlüsselaufnahme enthält, wobei die Formen der Kerben (24, 25) der Steuerscheibe (31, 32) und der Entriegelungsscheibe und des Steuerschlüssels (17) so sind, dass der Schlüssel beim Einstecken zuerst die Entriegelungsscheibe, vor der Steuerscheibe betätigt.
  3. Schalter nach Patentanspruch 2, dadurch gekennzeichnet, dass die Kerbe (31, 32) der Entriegelungsscheibe (30) sich über einen größeren Winkel öffnet als die Steuerscheibe (20)
  4. Schalter nach Patentanspruch 1, dadurch gekennzeichnet, dass zwei Entriegelungsscheiben (30a, 30b) vorgesehen sind, die symmetrisch im Verhältnis zu einer zentralen Steuerscheibe (20) angeordnet sind, wobei diese über einen Schwingarm (42) mit der Taste (44) verbunden ist, die gelenkig an der zentralen Steuerscheibe und an der Taste angebracht ist.
  5. Schalter nach Patentanspruch 1, dadurch gekennzeichnet, dass zwei Entriegelungsscheiben (30a, 30b) vorgesehen sind, die symmetrisch im Verhältnis zu einer zentralen Steuerscheibe (20) angeordnet sind, wobei diese über eine Achsverbindung (54) und Steuerrillen (53y, 53f) mit dem Kreuzkopf (52) eines Schiebers (50) verbunden ist, der mit einem Endstück (51) ausgestattet ist, welcher eine Taste bildet.
  6. Schalter nach Patentanspruch 5, dadurch gekennzeichnet, dass der Schieber (50) einerseits über sein Endstück (51) in einer zylindrischen Öffnung (41) des Steuerkopfs oder des Gehäuses geführt wird, andererseits durch eine Führungsrille (53z) seines Kreuzkopfes (52) gegen die Drehwelle (41) der Steuerscheibe (20)
  7. Schalter nach Patentanspruch 4 oder 5, dadurch gekennzeichnet, dass die zentrale Steuerscheibe (20) aus zwei Scheiben (20a, 20b) besteht, jede mit einer Entriegelungsscheibe (30a, 30b) gepaart.
  8. Schalter nach Patentanspruch 5 oder 6, dadurch gekennzeichnet, dass das Endstück (51) des Schiebers (50) die Sperre(n) (40) und deren Rückzugfeder(n) (45) lagert.
  9. Schalter nach Patentanspruch 5 oder 6, dadurch gekennzeichnet, dass der Kreuzkopf (52) des Schiebers (50) Arme aufweist (52a, 52b), die die Entriegelungsscheiben (30) seitlich umhüllen.
  10. Schalter nach Patentanspruch 5, dadurch gekennzeichnet, dass jede Entriegelungsscheibe (30) in der Drehung mit einem Trägerteil (60) einer individuellen Rückzugfeder (56) verbunden ist.
  11. Schalter nach Patentanspruch 5, dadurch gekennzeichnet, dass die Steuerrille (53f) nach einer geneigten Achse (F) ausgerichtet ist.
EP96402610A 1995-12-05 1996-12-03 Sicherheitsschalter mit Schlüssel Expired - Lifetime EP0778595B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9514949A FR2741993B1 (fr) 1995-12-05 1995-12-05 Interrupteur electrique de securite a cle
FR9514949 1995-12-05

Publications (2)

Publication Number Publication Date
EP0778595A1 EP0778595A1 (de) 1997-06-11
EP0778595B1 true EP0778595B1 (de) 2001-08-16

Family

ID=9485585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96402610A Expired - Lifetime EP0778595B1 (de) 1995-12-05 1996-12-03 Sicherheitsschalter mit Schlüssel

Country Status (8)

Country Link
US (1) US5898143A (de)
EP (1) EP0778595B1 (de)
JP (1) JP3880668B2 (de)
KR (1) KR100262416B1 (de)
CN (1) CN1095180C (de)
DE (1) DE69614488T2 (de)
ES (1) ES2160219T3 (de)
FR (1) FR2741993B1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19649717A1 (de) * 1996-11-30 1998-06-04 Euchner Gmbh & Co Sicherheitsschalter
ITVI980017A1 (it) * 1998-02-02 1999-08-02 Pizzato Elettrica Srl Interruttore elettrico di sicurezza
DE29803028U1 (de) * 1998-02-20 1998-04-09 Hans Bernstein Spezialfabrik für Schaltkontakte GmbH & Co, 32457 Porta Westfalica Sicherheitsschalter
JP4508434B2 (ja) * 2001-01-29 2010-07-21 Ｉｄｅｃ株式会社 安全スイッチ
DE10106228A1 (de) * 2001-02-10 2002-09-19 Euchner Gmbh & Co Sicherheitsschalter mit Entriegelungsscheibe
TW502864U (en) * 2001-09-07 2002-09-11 High Tech Comp Corp Power switch device which is easy to turn on and difficult to turn off
DE10308450A1 (de) * 2003-02-24 2004-09-16 E.G.O. Elektro-Gerätebau GmbH Drehschalter mit Schaltwelle für ein Elektrogerät
GB0405543D0 (en) * 2004-03-10 2004-04-21 Eja Ltd Switch mechanism
JP4396478B2 (ja) * 2004-10-21 2010-01-13 オムロン株式会社 キースイッチ
CN104347302B (zh) * 2013-07-30 2016-12-07 上海雷尼威尔测量技术有限公司 安全控制装置
CN104347303B (zh) * 2013-07-30 2016-08-10 上海球栅测量系统有限公司 安全控制装置
DE102015002863A1 (de) * 2015-03-06 2016-09-08 E. Dold & Söhne KG Sicherheitsschalteranordnung
CN110337704B (zh) * 2017-02-24 2021-04-13 Idec株式会社 安全开关
CN111668042B (zh) * 2020-06-19 2023-01-03 三实电器(漳州)有限公司 一种带强制动作机构组合开关模块的使用方法
CN112018681B (zh) * 2020-09-01 2021-09-28 盐城市华悦汽车部件有限公司 一种便于电动汽车供电线束的固定装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3302631C2 (de) * 1983-01-27 1985-02-07 Hans & Jos. Kronenberg Gmbh, 5060 Bergisch Gladbach Sicherheitsschalter mit Fehlschließsicherung
US4658102A (en) * 1984-09-08 1987-04-14 K. A. Schmersal Gmbh & Co. Electric switch
FR2579010B1 (fr) * 1985-03-18 1987-04-10 Telemecanique Electrique Interrupteur electrique de securite
US4963706A (en) * 1989-01-12 1990-10-16 Eja Engineering Company Limited Safety switch assemblies
DE3943375C2 (de) 1989-12-30 1997-08-21 Kloeckner Moeller Gmbh Schalter mit Antriebskopf
KR100271225B1 (ko) * 1992-08-31 2000-11-01 후나키 토시유키 안전스위치장치
DE4303367C1 (de) * 1993-02-05 1994-02-24 Schmersal K A Gmbh & Co Sicherheitsschalter
DE4338910C1 (de) * 1993-11-15 1995-02-16 Bernstein Hans Spezialfabrik Sicherheitsschalter
DE4408024C5 (de) * 1994-03-10 2007-09-06 Euchner Gmbh + Co. Kg Sicherheitsschalter
DE4436579C2 (de) * 1994-10-13 1997-05-22 Bernstein Hans Spezialfabrik Sicherheitsschalter

Also Published As

Publication number Publication date
KR100262416B1 (ko) 2000-08-01
DE69614488T2 (de) 2001-11-29
US5898143A (en) 1999-04-27
KR970051584A (ko) 1997-07-29
EP0778595A1 (de) 1997-06-11
CN1095180C (zh) 2002-11-27
FR2741993A1 (fr) 1997-06-06
JPH09180587A (ja) 1997-07-11
ES2160219T3 (es) 2001-11-01
JP3880668B2 (ja) 2007-02-14
CN1165387A (zh) 1997-11-19
FR2741993B1 (fr) 1998-01-16
DE69614488D1 (de) 2001-09-20

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