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EP0232765A2 - Commutateur électrique, en particulier pour véhicules automobiles - Google Patents

Commutateur électrique, en particulier pour véhicules automobiles Download PDF

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Publication number
EP0232765A2
EP0232765A2 EP87100861A EP87100861A EP0232765A2 EP 0232765 A2 EP0232765 A2 EP 0232765A2 EP 87100861 A EP87100861 A EP 87100861A EP 87100861 A EP87100861 A EP 87100861A EP 0232765 A2 EP0232765 A2 EP 0232765A2
Authority
EP
European Patent Office
Prior art keywords
switching
leaf spring
spring
electrical switch
switch according
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.)
Granted
Application number
EP87100861A
Other languages
German (de)
English (en)
Other versions
EP0232765B1 (fr
EP0232765A3 (en
Inventor
Jakob Bötz
Georg Hofmann
Hubert Spazierer
Adam Weber
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.)
SWF Auto Electric GmbH
Original Assignee
SWF Auto Electric GmbH
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 SWF Auto Electric GmbH filed Critical SWF Auto Electric GmbH
Publication of EP0232765A2 publication Critical patent/EP0232765A2/fr
Publication of EP0232765A3 publication Critical patent/EP0232765A3/de
Application granted granted Critical
Publication of EP0232765B1 publication Critical patent/EP0232765B1/fr
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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force
    • H01H13/60—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force with contact-driving member moved alternately in opposite directions
    • 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
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
    • 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
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • H01H2003/466—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle using a living hinge to connect the levers

Definitions

  • the invention relates to an electrical switch, in particular for motor vehicles, according to the features of the preamble of claim 1.
  • switches with a snap-action switching system are increasingly being installed because these switches have advantages in terms of switching capacity and service life.
  • a switch with a snap switch system which is designed as a toggle switch.
  • the snap spring is supported on one side in a fixed cutting edge bearing.
  • the snap spring is clamped in a pivotable switching element, this switching element being designed directly as an actuating element in this embodiment.
  • the switching movement is thus initiated at one end in the snap spring, the deflection being predetermined to a certain extent due to the fixed clamping of the snap spring in the switching element.
  • the snap spring will bend in an S-shape during the switching process, which is advantageous because then when the switching process is initiated, the contact pressure is first increased. This has a favorable effect on the service life and the switching capacity of the switch.
  • a push button switch with a snap switch system is known for example from DE-PS 30 39 419.
  • the linear movement of the actuating element designed as a pushbutton is transmitted to the movable contact tongue via a switching star with a switching cam.
  • the switching force is therefore not introduced directly into one end of the snap spring.
  • the switching forces for switching the snap-action switching system differ because the cam body acts on the contact tongue with the lever arms of different lengths. This uneven shift feeling is often criticized by customers.
  • the present invention is therefore based on the object of creating a push-button switch with a snap-action switching system in the most cost-effective manner, in which the same switching forces are required for switching in both switching directions.
  • the invention is based on the consideration that the fixed clamping of the snap spring in a pivotable switching element should be maintained due to the initial increase in contact pressure when switching.
  • the switching element is designed separately from the actuating element as a rocker switch, which can be alternately switched from one to the other end position by a switching plunger fixed to the actuating element.
  • the two end positions of the rocker switch are determined by the bias of the snap spring in the two switching positions. If the pivot point of the rocker switch lies on the central plane between these two stops, there is a symmetrical arrangement such that the switching force that must be exerted via the actuating plunger is the same in both switching directions.
  • the snap spring is supported on both sides on the same part, preferably on a correspondingly shaped fixed contact.
  • this shift plunger has a section rigidly fixed to the actuating element and an elastically deflectable section which engages in these engagement notches.
  • the switching plunger can be formed in one piece from plastic, the sections being connected to one another by a tapered area in the manner of a film hinge joint. In such an embodiment, the tip of the switching plunger slides along the engagement notch and the rocker switch is only moved when the tip of the switching plunger strikes the notch.
  • this problem is solved in that the switching plunger is pivotally mounted on the actuating element, the switching position of the rocker switch determining the rest position of the switching plunger via an elastic intermediate member. In such an embodiment, the switching plunger is always aligned precisely in the end region of the notch, so that sliding along the notch is eliminated. As a result, the idle stroke is smaller in this embodiment and the actuating force increases to a certain extent linearly.
  • a separate tension spring can serve as an elastic intermediate member.
  • a spring-elastic web protrudes in one piece from the rocker switch, which acts on the switching plunger beyond the pivot point and switches it into the respective position.
  • the snap spring is switched from one end position to the other end position as smoothly as possible. This cannot be guaranteed with the known support of the snap spring end in a cutting edge bearing.
  • An embodiment is therefore preferred in which the snap spring projects with at least one attachment into an opening, preferably at a fixed contact, the height of this opening allowing the snap spring attachment to move freely.
  • the free end face of the snap spring is supported linearly on the fixed contact in the two switching positions of the snap spring on the side of the attachment, so that increased friction when switching is not to be expected.
  • the contact tongue could be formed separately from the snap spring, which is certainly advantageous for switches with a high current load. If the switch only has to switch low currents, an embodiment is preferred for reasons of cost in which the contact tongue is formed in one piece with the snap spring.
  • the snap spring bends in an S-shape during the switching process. There are therefore areas that are subject to relatively high stress. In the interest of a long life of this snap spring, it is therefore proposed to design the snap spring so that it has a larger cross section in these areas of greater stress than, for example, in the support points or the clamping point on the swivel part.
  • the contact tongue can be designed in such a way that it tapers from the section which merges into the snap spring to the region which carries the contact.
  • the designs according to claims 15 and 16 relate to different arrangements of the arc in the leaf spring with respect to the switching element, from which the leaf spring can be acted upon outside of its center lying between its two ends. If a large swivel angle of the switching element should be necessary in order to snap the leaf spring, it is expedient to provide the bow according to claim 15 in the vicinity of the switching element. If, on the other hand, a small swivel angle of the switching element is sufficient, an arrangement of the arc between the center of the leaf spring and the end of the leaf spring which is further away from the switching element has proven to be expedient.
  • the leaf spring has an arc that goes up to one side and to the other side.
  • a complete symmetry is obtained if, due to an embodiment according to claim 18, the two arches, viewed in the longitudinal direction of the leaf spring, are in the same place.
  • the one bearing point of the leaf spring is a combination of one is at a bearing located in the longitudinal direction of the leaf spring and one located at a fixed in the longitudinal direction of the leaf spring and arranged laterally of the resilient abutment and that the leaf spring abuts the fixed bearing at a certain deflection of the resilient bearing.
  • Such a bearing point can still be regarded as stationary in the sense of claim 1, since at most a movement takes place in the longitudinal direction of the leaf spring.
  • the sheets can deflect according to claim 19 only to a limited extent or, according to claim 20, one end of the leaf spring abuts the fixed bearing point at a certain deflection of the resilient bearing point, it is ensured that a minimum force must be overcome when switching.
  • 10 denotes the base plate of the switch on which the snap switch system is built.
  • This switch includes a plurality of contacts 11, 12, 13 and 14 as well as a pretensioned snap spring 15 with an integral movable contact tongue 16 with a contact bead 17 which interacts with the angled stops on the fixed contacts 12 and 13.
  • the snap spring 15 is supported on one side at a fixed bearing, namely the fixed contact 11, which will be explained in detail later. On the opposite side, this snap spring 15 is clamped in a switching element 18 which is pivotally mounted on the base plate 10.
  • This switching element 18 is designed as a rocker switch and has a W-shaped contour on its end face with two engagement notches 19, 19a for a switching plunger 20 which is fixed to an actuating element 21 designed as a pushbutton.
  • This pushbutton 21 is guided in a linearly displaceable manner in the housing denoted by 22, guide webs 23 sliding in corresponding guide receptacles 24 of an intermediate plate 25.
  • the switching element 18 is designed separately from the actuating element 21 as a rocker switch.
  • This rocker switch can alternately be switched from one end position to the other by actuating the pushbutton 21, the switching plunger 20 engaging in the engagement notch 19 when actuated for the first time and then after the pushbutton springs back, which is indicated by a compression spring (not shown) is accomplished, is aligned in the direction of the other engagement notch 19a, so that during the next switching operation this switching plunger 20 then engages in the engagement notch 19a and switches the switching element 18 back into the position shown.
  • the end positions of this rocker switch 18 are determined by the deflection of the snap spring 15. To switch this spring via the push button 21 you will need exactly the same switching forces if you arrange the axis of rotation of this rocker switch 18 on the central plane M between the two stops, formed by the bent ends of the fixed contacts 12, 13.
  • the snap spring 15 has two projections 30, 31 which protrude into corresponding openings 32, 33 on the fixed contact 11.
  • the height H of these openings 32, 33 is selected such that the free mobility of these projections 30, 31 is ensured in these openings 32, 33.
  • the snap spring 15 should therefore not be bent in the transition zone to these shoulders 30, 31, which would be the case if the height H of these openings 32, 33 corresponded approximately to the thickness of the snap spring 15. Due to this special design of the support of the snap spring 15 at the fixed bearing point, frictionless mobility of the snap spring 15 is achieved, which in the area between the lugs 30, 31 is only in linear contact with this fixed contact 11, as is indicated in FIG. 3 for L. .
  • the contact web 11 has two angled arms 35, 35 ⁇ aligned parallel to one another, which are arranged on opposite sides of the snap spring. These arms 35, 35 ⁇ have bearing mounts for the rocker switch 18. In this way, the exact distance D between the two support points of the snap spring 15 is ensured, which is very important for proper switching behavior.
  • the snap spring 15 is fixed in position in the rocker switch 18, because this snap spring 15 is preferably inserted into an injection mold and then the rocker switch 18 is injection molded.
  • Fig. 5 the principle of this snap switch is shown on an enlarged scale. It can be seen that the snap spring 15 is pretensioned between its support points and is therefore slightly curved. The contact bead 17 on the contact tongue 16 is in one switching position on the fixed contact 13. If the switching rocker 18 is now pivoted clockwise by the switching plunger 20, the snap spring bends according to the bending line BL. The snap spring 15 assumes an essentially S-shaped position. It is important that the end region of the snap spring supported on the fixed contact 11 has a greater curvature when the switchover process is initiated, as is indicated by the broken line.
  • the contact tongue 16 is integrally formed on this end region of the snap spring 15, the contact bead 17 is first pressed against the associated fixed contact 13 with a greater force when the switching process is initiated. During the switching process, an increase in contact pressure occurs first, which is very important for the switching behavior.
  • the switching plunger 20 namely has two sections 20a and 20b, which are delimited from one another by a tapered region 20c in the manner of a film hinge.
  • the section 20a is rigidly fixed in the pushbutton 21, while the section 20b can be deflected elastically so that it can slide along in the engagement notches 19 or 19a until it bears against the stops 41, 41a. From the illustration in FIG. 5 it can be seen that when the pushbutton and thus the switching plunger 20 are actuated, an idle stroke is first run through without any significant switching force. Then the tip of the switching plunger 20 strikes the engagement notch 19.
  • the tip of the switching plunger 20 Upon further actuation of the switching plunger, the tip of the switching plunger 20 runs along the end face of this notch, the section 20b being deflected. This requires a slightly higher shifting force. Only when the tip of the switching plunger 20 abuts the stop 41 in the end region of the notch, is the switching rocker switched and the high switching force now has to be applied. All in all, it should be noted that in this version, there is no constant increase in the actuating force that can be measured, but rather jumps occur that are criticized by some customers.
  • the switching plunger 20 is namely pivotally mounted on the push button 21.
  • An elastic intermediate member 50 in the form of a tension spring is on the one hand on this switching plunger 20 and on the other hand on the Shift rocker 18 hooked in. It can be seen from FIG. 6 that the position of the rocker switch 18 determines the rest position of this switching plunger 20 via this elastic intermediate member 50, which is consequently essentially aligned such that it is aligned directly in the end region of the engagement notch 19.
  • the tip of the switching plunger then does not slide along the bevel of the engagement notch 19, but is introduced directly into its end region. After overcoming the idle stroke, the actuating force increases rapidly without a noticeable jump. This measure significantly improves the shift feeling.
  • this elastic intermediate member is designed as an additional part in the form of a tension spring.
  • a switch is shown in which a resilient web 60, which is integrally formed on the rocker switch 18 and acts on the switching plunger 20 beyond the pivot point DP, serves as an elastic intermediate member. To this end, the end of this web 60 projects between two drivers 61, 62 at the end of the switching plunger 20 and thus determines the rest position of the switching plunger as a function of the switching position of the switching rocker 18.
  • Fig. 8 it can be seen that the switching plunger 20 is pivotally mounted in a keyhole-like locking receptacle 63 on the push button 21.
  • the structure of the snap switch system in the embodiments according to FIGS. 6, 7 and 8 essentially corresponds to the principle according to FIG. 5, so that further explanations are unnecessary.
  • the snap spring is subjected to very high loads, certain areas being exposed to greater loads.
  • the shape of the snap spring is therefore preferably chosen so that it can withstand these different loads even after a large number of switching operations without the mass of the snap spring being increased inadmissibly.
  • Fig. 9 it can be seen that the snap spring 15 is stamped in one piece with the contact tongue 16 in such a way from a circuit board that two longer legs 70, 71 are connected to each other at the ends via webs 72, 73 are.
  • the web 72 lies against the stationary bearing point, that is to say against the fixed contact 11, while the opposite web 73 is clamped into the rocker switch 18.
  • the contact tongue 16 extends from the web 72 near the stationary bearing point and extends parallel to the longer legs 70, 71. It is now essential that the longer legs 70, 71 have a greater width in their central region than in the transition zone to the connecting webs 72 and 73, because greater loads occur in this central region during the S-shaped deflection.
  • the contact spring tongue 16 has a substantially triangular contour with the base on the connecting web 72 and the tip in the area of the contact bead 17. In this way, the mass of this contact tongue is chosen so small with sufficient load-bearing capacity that there is no fear of the switch bouncing.
  • one end of the leaf spring 15 is in turn clamped in a rocker switch 18. This is pivotally mounted in a switch housing and, as already described above, can be changed over using a plunger.
  • the other end 101 of the leaf spring 15 is supported in a notch 102 of the fixed contact 11. It is therefore also pivotally mounted.
  • the leaf spring 15 is formed in a certain section into two arches 103 and 104 which protrude from the plane of the leaf spring 15 in opposite directions.
  • both arches 103 and 104 are located at the same location, but, as is clearly evident from FIGS. 12 and 13, are arranged next to one another.
  • the leaf spring 15 is divided in a certain section by a central slot 105 running in its longitudinal direction. Because of this slot 105, the arch 103 can now stand up on one side and the arch 104 on the other side of the leaf spring.
  • a corrugation 106 is introduced which points into the interior of the respective arch and faces the corrugation on the other flank of the same arch. In this way, the path by which the arches 103 and 104 can deflect in the longitudinal direction of the leaf spring 15 is limited.
  • a contact tongue 16 is formed laterally on the leaf spring 15. This contact tongue extends from the area of the connection to the leaf spring 15 near its end 101 in the direction of the rocker switch 18. Also in the embodiment according to FIG. 10, a leaf spring 15 with a contact tongue 16 according to FIG. 12 can in principle be used. However, as can be seen from FIG. 13, the contact bead 17 can also be located directly on the leaf spring.
  • the two arcs 103 and 104 are located between the switching element 18 and the center of the leaf spring 15, in the embodiment according to FIG. 11, on the other hand, between the end 101 and the center of the leaf spring. Since the lateral arrangement of the arches 103 and 104 has the result that in the rest positions the lowest or the highest point of the leaf spring 15 is not exactly in the middle, but is laterally offset in the direction of the arches 103 and 104 to follow from the different arrangement of the arches 103 and 104 in the embodiments according to FIGS. 10 and 11 with the same stops for the leaf spring 15 different switching angles of the switching rocker 18.
  • the switching angle in the embodiment according to FIG. 10 is larger than in the embodiment according to FIG. 11 If you want to have a particularly short-stroke push button switch, an embodiment according to FIG. 11 is particularly advantageous.
  • a leaf spring 15 is in turn clamped with its one end 100 in a rocker switch 18, while with its other end 101 in a notch 102 of a contact plate 11 supports.
  • the notch 102 is composed of a central section 107 and two lateral sections 108.
  • the middle section 107 is located on a resilient tab 109 cut out of the contact plate 11 and projecting in the direction of the rocker switch 18 via the contact plate 11.
  • the two lateral sections 108 of the notch 102 are introduced into fixed regions of the contact plate 11 in the longitudinal direction of the leaf spring 15.
  • the bearing point 102 for the end 101 of the leaf spring 15 is thus a combination of a bearing point that is resilient in the longitudinal direction of the spring 15 and fixed in the longitudinal direction of the spring 15.
  • the spring 15 normally lies only in the section 107 of the notch 102.
  • the distance between the sections 108 of the notch 102 and the fulcrum of the rocker switch 18 is less than the length of the leaf spring 15, so that the end 101 of the leaf spring 15 abuts against the fixed sections 108 of the notch 102 if the spring tab 109 is too soft for any reason thus a minimum Umschatlkraft is guaranteed.
  • the section 107 of the notch 102 can be less deep than the sections 108.
  • the flap 109 can be deflected beyond the central plane of the contact plate 11.
  • a protrusion of the tab 109 beyond the plane of the contact plate 11 is also possible by a section projecting on the width of the section 107 of the notch 102 at the end 101 of the leaf spring 15.

Landscapes

  • Push-Button Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Switches With Compound Operations (AREA)
  • Tumbler Switches (AREA)
EP87100861A 1986-02-14 1987-01-22 Commutateur électrique, en particulier pour véhicules automobiles Expired - Lifetime EP0232765B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE8604034U DE8604034U1 (de) 1986-02-14 1986-02-14 Schalter, insbesondere für Kraftfahrzeuge
DE3604765A DE3604765C1 (de) 1986-02-14 1986-02-14 Elektrischer Schalter,insbesondere fuer Kraftfahrzeuge
DE3604765 1986-02-14
DE3642677 1986-12-13
DE3642677A DE3642677C2 (de) 1986-02-14 1986-12-13 Elektrischer Schalter

Publications (3)

Publication Number Publication Date
EP0232765A2 true EP0232765A2 (fr) 1987-08-19
EP0232765A3 EP0232765A3 (en) 1989-05-10
EP0232765B1 EP0232765B1 (fr) 1992-04-08

Family

ID=27194018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100861A Expired - Lifetime EP0232765B1 (fr) 1986-02-14 1987-01-22 Commutateur électrique, en particulier pour véhicules automobiles

Country Status (4)

Country Link
US (1) US4751352A (fr)
EP (1) EP0232765B1 (fr)
DE (3) DE3604765C1 (fr)
ES (1) ES2031836T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301413A1 (fr) * 1987-07-25 1989-02-01 SWF Auto-Electric GmbH Interrupteur électrique notamment pour véhicules automobiles
EP0307364A2 (fr) * 1987-09-09 1989-03-15 Cesare Gallone Interrupteur actionné mécaniquement
EP0321392A1 (fr) * 1987-12-17 1989-06-21 Saia Ag Interrupteur à bascule
EP0599342A1 (fr) * 1992-11-27 1994-06-01 TRW FAHRZEUGELEKTRIK GmbH & CO. KG Dispositif de commutation électrique
EP0626706A1 (fr) * 1993-05-27 1994-11-30 Delta Schoeller Limited Interrupteur électrique
WO1996027202A1 (fr) * 1995-03-02 1996-09-06 Legrand Österreich Gmbh Interrupteur electrique d'installation
WO2003041100A2 (fr) * 2001-11-02 2003-05-15 Marquardt Gmbh Commutateur electrique

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DE3604765C1 (de) * 1986-02-14 1987-10-29 Swf Auto Electric Gmbh Elektrischer Schalter,insbesondere fuer Kraftfahrzeuge
DE3829108C2 (de) * 1988-08-27 1996-07-18 Teves Gmbh Alfred Elektrischer Schalter, insbesondere für Kraftfahrzeuge
DE4436979A1 (de) * 1994-10-15 1996-04-18 Teves Gmbh Alfred Mikroschalter als Schnappschalter mit Keilprofil am in dem Schalter schwenkbar gelagerten Kontakthebel
DE4439008C2 (de) * 1994-11-02 1999-05-27 Eaton Controls Gmbh Elektrischer Tastschalter
US5596180A (en) * 1995-04-03 1997-01-21 Itt Automotive, Inc. Ignition switch with electrically conductive leaf spring members and rotary cam operator
US6069332A (en) * 1995-04-03 2000-05-30 Itt Automotive, Inc. Apparatus for retaining and aligning an electrical switch housing in a cast housing member
US5955711A (en) * 1998-03-31 1999-09-21 Itt Manufacturing Enterprises, Inc. Ignition switch with segmented rotary actuation for constrained packaging environment
DE19960207B4 (de) * 1999-12-14 2005-10-27 Valeo Schalter Und Sensoren Gmbh Schaltelement für elektrischen Schalter
TW454934U (en) * 2000-04-07 2001-09-11 Darfon Electronics Corp Keystroke switch apparatus
DE102016101017A1 (de) * 2016-01-21 2017-07-27 Johnson Electric Germany GmbH & Co. KG Elektrischer Wippenschalter
RU2658330C1 (ru) * 2017-05-19 2018-06-20 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Включатель

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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE288166C (fr) * 1914-04-02
DE817319C (de) * 1949-04-17 1951-10-18 Siemens Schuckertwerke A G Elektrischer Schalter mit einer zwischen zwei Widerlagern im durchgebogenen Zustan eingespannten Blattfeder als Schaltorgan
FR1405197A (fr) * 1963-08-29 1965-07-02 Smith & Sons Ltd S Commutateur à excentrage et à action brusque
GB1223647A (en) * 1968-05-04 1971-03-03 Marquardt J & J Snap-action electric switch
DE2416969A1 (de) * 1974-04-08 1975-10-23 Kautt & Bux Kg Druckknopfschalter
DE3209286A1 (de) * 1981-03-31 1982-11-04 Deutsche Itt Industries Gmbh, 7800 Freiburg Schnappschalter

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301413A1 (fr) * 1987-07-25 1989-02-01 SWF Auto-Electric GmbH Interrupteur électrique notamment pour véhicules automobiles
US4916269A (en) * 1987-07-25 1990-04-10 Swf Auto-Electric Gmbh Push-button rocker electric switch
EP0307364A2 (fr) * 1987-09-09 1989-03-15 Cesare Gallone Interrupteur actionné mécaniquement
EP0307364A3 (en) * 1987-09-09 1990-09-05 Cesare Gallone Mechanically operated switch
EP0321392A1 (fr) * 1987-12-17 1989-06-21 Saia Ag Interrupteur à bascule
CH675174A5 (fr) * 1987-12-17 1990-08-31 Saia Ag
EP0599342A1 (fr) * 1992-11-27 1994-06-01 TRW FAHRZEUGELEKTRIK GmbH & CO. KG Dispositif de commutation électrique
EP0626706A1 (fr) * 1993-05-27 1994-11-30 Delta Schoeller Limited Interrupteur électrique
WO1996027202A1 (fr) * 1995-03-02 1996-09-06 Legrand Österreich Gmbh Interrupteur electrique d'installation
WO2003041100A2 (fr) * 2001-11-02 2003-05-15 Marquardt Gmbh Commutateur electrique
WO2003041100A3 (fr) * 2001-11-02 2004-04-29 Marquardt Gmbh Commutateur electrique
US6965087B2 (en) 2001-11-02 2005-11-15 Marquardt Gmbh Electric switch

Also Published As

Publication number Publication date
DE3642677C2 (de) 1998-06-04
DE3604765C1 (de) 1987-10-29
DE3642677A1 (de) 1988-06-23
DE8604034U1 (de) 1988-07-28
EP0232765B1 (fr) 1992-04-08
ES2031836T3 (es) 1993-01-01
US4751352A (en) 1988-06-14
EP0232765A3 (en) 1989-05-10

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