DE1780105B2 - DIRECTION SWITCH FOR MOTOR VEHICLES - Google Patents

Description

60

The invention relates to a travel direction switch, which is switched back by a driver rotatable with the steering column and is arranged in a housing which is non-rotatably attached to the steering column tube, which also contains a rotating body which can be pivoted from a rest position by an angle into two working positions is, in which the indicator lights on opposite ^ ^^ ^ _{foaftfahizeug} it light up, and the one stop device £ «t4dfe ^ the rotary body in each of the work control ^ ff ^ alL

At a F ^^^ sc ^ ter chese. To halt a sprung P
Switch m one
the reverse rotation of the
tion of the steering process ^
a force on the rotating body
than the power of the SFf ¹⁶ ^
body in its rest position ^ kbewg?

it can happen under certain circumstances that

the switch is swiveled via seme R ^ afJ ^ "J ^ -? ^" whose work control. This undesirable process occurs especially when the steering wheel is turned back with a Geschymdigkeil, and is still falsified by the fact ^that a considerable force has to be exerted on the rotating body in order to overcome the lock

The invention has the object of this Disadvantage of the known turn signal switch to be

sided.

According to the invention, this task is a Travel direction switch of the type mentioned at the beginning solved in that the stop device em stop member which is slidably disposed in the housing and owns a part that goes with your rotating body in each of his division of labor in receipt, stands that the stop member is pressed by a spring device in a direction that the brings said part into engagement with the rotating body, and that the switch has an unlocking device for the stop member, which rehearses during the return movement is movable to the rotating body so that the stop member is moved against the action of the resilient Emrichtung and the rotating body from a can bring his ArbeitssteUungen back to its rest position by the driver.

In the case of the travel direction switch proposed according to the invention, the lock that the triple body holds in one of its working positions, solved by the movement of the driver and not through the force exerted by the driver was overcome. On the rotating body is therefore only exerted the torque necessary to return it to its rest position. Through this and the inventive construction of the lock is largely avoided that the rotating body beyond its rest position in the other work production is moved. Another advantage of the invention is that the total angular movement the rotating body can be reduced between two working positions. Besides, the Switching operation can be felt sharply and precisely and not only faintly perceptible as with many conventional ones Travel direction switches.

An embodiment of the invention is described with reference to the drawing, in which shows

F i g. 1 is an exploded perspective view of the travel direction switch;

2 shows a plan view of the travel direction switch according to FIG. 1, and

F i g. 3 is a view in the direction of arrow A of FIG. 2.

In the drawing, a direction switch is shown, which consists of a housing 11 which

Plastic is molded and at lla on the ndeii steering column tube of the motor vehicle, in which the steering column rotates In of the housing 11, an injection-molded bearing block 14 is arranged with the help of two sleeves 12 Since the journal 12 consists of one piece and rfem housing 11 with With the help of the screws 13, a rotating body 15 made of plastic is arranged on the housing 11 and the bearing block 14 S, pivotable about an axis which generally runs to the steering column , the between two stops 17 α, 17 ft on the bearing block S kt ^ ie the stops 17 α and 17 b limit the angular movement by which the rotating body

Ä Ä äs body 15 corresponds to the end lying over the slot -8gg, the plate 27 has a recess and is derail forked, that me vvau the recess encompasses the rotating body 15; ° "

the plate 27 with the rotary body 15 ^ ⁰⁸ F '"L also to the rotating body 15 gjeitbar bu relatively ~ u the sides of the Entspernmgsplatte 27 Sindl me \ ~ t with from one piece with the plate testehenaen ^ beat 29, 30, which extend after * ^ n

stretch and parallel to the housing 11 are angeuiu. . _{ph s} .

In the housing 11 a spring 32 aiMι rnu phorbronze with the help of a rivet 33 jn ^^ front end of the plate 27 is attached. De ^N "J ~ .V

> ₅ in the center ^ r spring 32 set vmf ^ legs 34 and 35 of spring 32 stretching sic

At the end opposite the steering column, the housing 11 is provided with a recess 20 which. if it were longer, the pivot axis ^ rotary body 15 would intersect. Slidable in the fa mg 20 a locking member 19 is arranged, which, housed in grooves on the bottom of the recess 20 Mnd, tm pivot axis of the rotary body 15 pressed towards Za on which the pivot axis of the rotary body is a pair of compression springs 20 a 15 "Snüberlicgenden end of the Locking member 19 provided with Sm upright extension 21 The extension 21 generally has a triangular cut with a rounded tip. The rotating body 15 has two conical projections 22, 23 which form a groove 24 between them, into which the extension 21 engages ornately when the switch is in its neutral position

• \ "s one piece with the rotating body 15 s.nd on the opposite sides of the rotating body two. gb, ₁₂ ene. molded elastic arms 25, 26, which f ,; "" Mean for the greatest TeO of their length to extend towards the column of the motor vehicle, the free ends are bent back so that Ten, 25 b. 26 b will be formed, which extend to the rotating body 15 out. The outer sides of the _free ends of the arms 25, 26 form cam surfaces ²⁵ Sef ^ Rehkör _P er 15, st opposite the G ^ eU from a rest position in which the projection 21 of the locking member 19 engages in the groove 24 into two opposite ones Directions - a first and a second working position - pivotable, in the contacts, aie are described below of the display lights on the left and right side of the motor vehicle are closed. . λ u _P ·, «

The rotating body 15 is held in one of its working positions by stopping the projection “16 against the respective stop 17” or 17 6 and by contacting the projection 21 against the side of the respective projection 22 or 23 of the groove 24. The locking member 19 is hereby displaced radially against the action of the spring 20 α , so that the respective projection 22 or 23 can slide over the shoulder 21. Between the rotating body 15 and the housing 11 an unlocking plate 27 ^ for the Soerrelied 19 (Fig.l) is slidably arranged, which on the

Slot 28 is provided, which the groove 24 in the lying end a connection m a see Stromquel e two fixed! C ^ Kon 37, which are through the heads of two nts J, are in the vicinity of the free ß

* ₅ legs 34, 35 "" fP ^^ XÄSS 36. 37 also extend through 11 and are electrically connected to the output lines for the lmken or

Direction ^{indicator lights at} S ^ ™ / _down 27, st at their front, end jnrt ™ ^{e Y n} J _rest _

Sighted BJ ^ J ^ fJ ^ J You Bolzen27 ,. position of the rotating body, is "" towards _{J £ j}

27 6 to the ^^ Ά ^ Χ ^ α den entder spring 32 J ^^^ f ^ th. To turn ^ Si.mpanzcigeleuchtcn of the _rotary body 15 in erverschwenkt se.ne, xvobei the plate 27 ^verc 15 bwegt The

s ^le

winks, xvobei d

, Rotating body 15 moves. Which together ™ ^l ^ m rotating body ^^

W.nkel ^ movement of WaUc 27 bnng ^

34 of the Fed «32» J AnI ^ ^ Jn _{R {chtmgs} .

through the ^arts ; ^e ™ "°" | _{ite of the} motor vehicle _{signs are} lit on the inside of _the p ^

^ f ^^^ SeAt the contact 37 ird ^ η ^d "8 ¹ ^ Jf ⁶ ^ _{n the} rotary body 15 in plant ^ ^ racht ^ if ^^ _{ .

»El 34 35 si nt, ^^ in _{addition the} resilient one

50 ^^^^^ 34, support 35.

^ ^S ^ ^k ^ o _{ehäuse n} mounted on the fixed of _the motor vehicle

^^^^ βΟ driver near the (mcht tog ^ ^^ _{Di Be}

n of the driver is through the punch

n of Mη η _indicates .

g ^ eL steering to the left g · _{18 Missed} e _g tight sets

^^; ^ Vseine first operating position be-60 to _{t n} Uhrzeigersmn _strength illuminate the

way in which the f _are switched on

_{is with} the rotary body 15 _{to-When Dre} hkörper in his

l ^^ Sc \ Lg is moved, proposes the pre-65 entefitesteJ ^lun g £ " _{a ω} , while the jump 10 slides past uc ⁶ ₂₃ . the

£ Ä ?? d _aS Spewed 19 _g c-

and

gene presses the rotating body 15, serves to hold the rotating body in its first working position.

The movement of the rotating body 15 into its first working position brings the arm 25 into a position in which its cam surface 25 α enters the path of movement of the driver. When the motor vehicle is steering to the left, the steering column is rotated counterclockwise, and the driver first engages the inside of the cam surface 25 α . A further movement of the steering column causes the arm 25 to be bent outward so that the driver slides past the cam surface 25 a without resetting the switch. When the turn of the motor vehicle has now been carried out, the steering column is turned back clockwise; the driver now engages the outside of the cam surface 25 a , and since the rotating body is still held in its first working position by the projection 21, the arm 25 is bent inward. When the arm 25 is bent inward, its part 25 b engages the stop 29 of the plate 27, so that when the steering column is moved further, the further deflection of the arm 25, the plate 27 relative to the rotating body 15 in the direction of the projection 21 can slide, the plate 27 being guided by the projection 15 α on the underside of the rotating body 15. Since the plate 27 has been rotated with the rotating body 15 when the rotating body has been moved into its first working position, the slot 28 in the plate 27 is not in fruit with the extension 21, so that the end of the plate adjacent to the slot 28 27 engages the shoulder 21 when the plate slides relative to the rotating body 15. As a result, when the steering column is rotated clockwise, the plate 27 pushes the locking member 19 and thus the projection 21 away from the steering column against the action of the springs, so that the projection 21 lifts off the projection 23. Since now the rotating body 15 is no longer held by the locking member 19 in its first working position, it is opened by the combined action of the driver

ίο the cam surface 25 α and the spring action of the arm 25 pivoted clockwise and brought into its rest position. When the rotating body 15 reaches a position in which the slot 28 of the plate 27 is again in alignment with the extension 21, the spring pushes the locking member 19 in the direction of the steering column, so that the extension 21 on the side of the slot 28 in the Plate 27 and the side of the groove 24 engages in the rotating body 15 and the counterpressure of the inclined surface of the projection 21 on the inclined

ao gene sides of the groove 24 and the slot 28 centralizes the rotating body in its rest position in which it is held by the projection 21, which engages in the groove 24.

The mode of operation of the switch with a right

s5 steering corresponds to that for the Left pivot and therefore does not need to be described in more detail. Thereby occur with the right hand drive of course, the arm 26 and the projection 22 in action.

When the switch is held in its working position by the driver, while the driver executes a return movement, the plate 27 is still moved in the manner described and the Switch not damaged.

1 sheet of drawings

Claims (4)

Patent claims · Patent claims. 1. Travel direction switch, which is switched back by a driver Sbaren with the steering column and is arranged in a housing that is non-rotatably attached to the steering column ear, which also contains a rotating body which can be pivoted from a rest position by an angle into two working positions, in which the indicator lights aufleuch on opposite sides of the motor vehicle ^ and a locking device embeds, which holds the rotational body in each of the ArblitssteUungen, characterized in that the blocking * ₅ einrichtui a locking member (19) which is slidable in the housing (U ) is arranged and has a part (21) which is in engagement with the rotating body (15) in each of its working positions so that the locking member (19) is pressed in one direction by a resilient device (20 a), which brings said part (21) into engagement with the rotating body (15), and that the switch is provided with an unlocking device (27) for the locking member (19), which is movable relative to the rotating body (15) during the restoring movement of the driver so that the locking member (19) is moved against the action of the resilient device (20 a) and brings the rotating body back from one of its working positions from the driver leaves. 2. travel direction switch according to claim 1, characterized in that the rotating body (15) has two elastic arms (25, 26) which penetrate the path of movement of the driver. when the rotating body is moved into one of its working legs, and that the respective arm (25, 26) can be deflected by the driver during the return movement and the movement of the The driver transfers to the unlocking device (27) so that the locking member (19) unlocks will 3. Direction switch according to claim 1 or 2, characterized in that the unlocking device (27) can be pivoted together with the rotating body (15) during its movement. 4. Direction switch according to one of claims 1 to 3, characterized in that two movable contacts (34, 35) in the form of resilient conductors (32) are fastened in the housing, of which when the rotating body (15) is rotated from its rest position into one of the working positions each one with the corresponding contact of two solid cortices (36, 37) in contact comes.