DE1908799B2 - ELECTRICAL SWITCH, IN PARTICULAR STARTING AND IGNITION SWITCHES FOR VEHICLES - Google Patents

Description

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The object of the invention is to provide an electrical measure of the invention ₅ in the open position of the connector

Switch, in particular a starter and ignition switch, views of the switch in FIG

ter to provide, which are an F g.3 ™ ^d ^ ⁴ _{contacts gesch} iossen at low Large

Reliable contact is permitted and where a control unit W * £ * £££ Z £ I ₅ switches in connec-

Parallel displacement of the movable opposite the 5 ^Fl ^^ _p ^^ ^W _s ^e ^ _{ls 4erungsvorrichtung.}

* fixed contacts with the switch closed vemne- dungJjj ^ r ^ GSS de? ma Fig1 2 has a

^ This task is solved with the single base plate! - ™ ^ SÄS ^ ÄÄ switch mentioned above according to the invention thereby, menl on. The Rait ^ f ^ s ° Srs consists of a that the actuating member as a cam disc with stixn- xo ^ he ^ ^b eweghche Te of the best Schmers

lateral actuation cam is formed and that W ^^^^^^ en'nSt ^ gesteUten ignition

the Kontaktzimgen of the movable contacts to the one rnden ^^^ jf _ockenscIie i _b e S,

Contact closing pressure applying leaf springs smd. key is old, una device

It is achieved by the fact that the contact tongues

the moving contacts verhältmsmäßig iang be _l5 gen with denbewe ^ cozy ^ o ^ ⁿ Kontakte7

can, although it is a small switch W ^ SSSe ^ -SStoTiShe for the right

acts, since the length of the contact tongues is not exactly additional by smd of feathering 8

the radius of the switch is limited *. This ^creates contact pressure J ™ S ™> otme

can a sufficient closing pressure by the own Dnrcfcfc f ^ f ^ ff ^ ^ _the operation of the

springing of the contact tongue ^ are caused, so _{ao c #>} gfJ [^ ^ L VeXnen der shaft 4. The beeine separate, den

the contacts were in the open state, with an e: n corresponding to that in M & * 8 | provided to be ^^^^^^^ S ^ t ^ XZ ^^ T £ »* L ! 0 actuated

Konianie are vcumcutn.

Appropriate further developments of the object 30

of claim 1 are m the claims! to 5 ent- jjieDstarusicncruugavun ^ u ^^^ e,.

keep. can be made in any way. The theft

The invention is seen with reference to the drawing in the safety device from the upper part

schematically illustrated embodiments of the in F i g. 5 device shown,

explained below. In the drawing show 35 In the lower part the actual switch with its

F i g. 1 and 2 show two views of a switch GEEN parts described above.

1 sheet of drawings

Claims (4)

which is non-rotatably connected to the rotatable actuating member and cooperates with a control surface which softens when the actuating member is rotated 1. Electrical switch for closing one, depending on the rotary position, lifts the moving contact or several circuits, in particular starting 5 or lowers On the moving contact is a and ignition switch for automobiles, provided with a snap link, which is used for quick Base plate made of insulating material, which ensures that the contact closes firmly with this too carries clocks, and with a rotatable actuating switch there is friction between the moving member, by which rotatably mounted borrowed and the associated fixed contact, so that Contact tongues on which the fixed contacts are also exposed to the risk of wear and tear Moving contacts arranged hung an arc. are, in the direction parallel to the axis of rotation of the beta. The same disadvantage exists with a different actuator Known to be deflectable against a spring force switch, in which the movable consind, characterized in that the clocks in a disc against a spring pressure ver actuator are slidably mounted as a cam disk (5) with face 15. The disc is with the beta side B ^ 'actuation cam is formed and control member rotatably, but slidably connected that the Koncaktzungen the movable contacts and is closed with the help of control cams (7) the contact closing pressure applying sheet of circuits in which the movable key springs (8) are. clocks are on assigned fixed contacts, 2. Switch according to claim 1, characterized marked 20 or moved to open the circuits. It is also noted that on the leaf springs (8) pins (6) in this known switch rub the movable ones, which with the front-side actuating cams contacts the fixed contacts as long as the dzr cam disk (5) is closed to move the movable switch. Chen contacts (7) on the leaf springs (8) together. Furthermore, a switch is known in which on one work. 35 arm a spring-loaded ball against a 3. Switch according to claim 1. characterized slotted disc is pressed, the slotted draws that the actuator has a shaft (4) parts as moving contacts and of which has, the ball, which is mounted in one piece with the cam disk (5), is connected against the fixed contacts is. can be pressed. With this switch they are 4. Switch according to one of claims 1 to 3, 3 ° formed by the slotted disc contact tongues in characterized in that it has a thief's dimensions on the slotted disc steal security device is provided. the. Because the slotted disc will be attached and centered must, the effective length of the contact blades is much smaller than the knife of the slot 35 washer. Since the known switch is is a large switch, this arises no major disadvantage. Especially with a small switch such as an ignition switch such a construction lead to the fact that the The invention relates to an electrical 40 elastic contact tongues are too short to be one Switch to close one or more current - good separation of the contacts or a good closing circuit, in particular, starter and ignition switches could produce pressure. With the well-known Motor vehicles, with a base plate made of insulating material, the closing pressure is exerted by the pressure feterial, which carries fixed contacts, and with a rotating bath the actuating ball is applied Actuator through which non-rotatably mounted 45 gear from one contact tongue to the other through de-contact tongues, at which the fixed contacts are tied to the edges, which is undesirable ordered movable contacts are arranged, can result in bending of the contact tongue. Since the Direction parallel to the axis of rotation of the actuator des can be deflected against a spring force. Contact tongues when closing the contact With conventional ignition switches, the fixed cone-shaped elements are seated, so there is only a low contact pressure clocks on an insulating base plate, and the movable possible, which again the risk of the emergence of Borrowed contacts are considered resilient to the insulating material arc or a good contact base plate Pressed contact disk formed, would be prevented. together with the rotatable actuator also a ring switch is known in which the of the switch is rotated and depending on the rotational position 55 contact tongues are essentially parallel to the rotating mechanism or several circuits opens or closes. axis of the actuator are arranged and of On the contact plate there are contact projections - a contact roller depending on the rotary position of the actuator, which, depending on the position of rotation, are either pressed together on the insulation link. Here too lierteil or on the surface of the fixed contacts, the closing pressure is against the natural springing of the on the insulating material plate and are therefore applied by the pressure rollers when actuating. the switch on the insulating plate. Since this switch is also a this results in rapid wear of the large isolating switch, in which the axial arrangement of the materials themselves and the permanent contacts. In addition, contact tongues do not become a substantial axial When a circuit is opened, an arc can extend the switch gate. For sufficient which also damage the contact blades on a small switch clocks and the insulating material leads. but this would have to have an unnecessarily long length, A switch is also known in which the contact blades, if axially extending, are reasonably immovable Contact is designed as a contact tongue, should be accommodated.