DE2111358C3 - Switches, in particular steering column switches, for iahrtricYrtungsameige m motor vehicles - Google Patents

Description

the latching elements are resiliently supported and the interlocking is carried out by de- Offenlegungsschrift 1505 641 One of the limit stops for intermediate 60 positions via pawls on the switching element and on the fixed switching positions carries, in particular steering column switch part. An intermediate switch position is ter for indicating the direction of travel in motor vehicles. achieved by the fact that the operatively connected

In the case of steering column switches of this type, the converging adjustment slopes of the pawls are increased set working rest position canceled automatically, stop before reaching the working positions if show the 65 after a cornering of the motor vehicle. This way there will be an increase in Turn the steering column back into the straight-ahead driving position - actuating force required to exceed these stops will. This automatic resetting of the switch that identifies the intermediate switch positions is omitted if the twisting of the draws.

In a proposed steering column switch is "'ehen that the switching curve for the as received XS? Locking ball formed locking element of the switching part connected to the shift lever between

" ^ÄBt · ^{the di}

Bolts are formed and that locking lugs un

Schaltki-RVen to one another ^from S ^eslimmt ^ T '^ ". The abutting against the boundary limit stops Ras nose only one in Bere ^" * _ner-Nazi ^ w

Äästelement the triggering of the shift lever mil contact-making switching element so strongly accelerate can that this scarf.link over the position out in the other switching direction and briefly the lamps of the other ffrzeugseite can control. This increase in force, according to the regulations, is due to the further deflection S RaVtelementes due to the latching stop of the intermediate switch position. The danger of Schakens de * lamps on the other side of the vehicle S with this steering column switch still, 'aby be-Xnsli ° t that already in the middle position cards other intermediate position of the Sitting process for the lamps of the other driving

ΐϊΤΕ3Λ

only

and a

a locking bolt

Feather needed.

In a further embodiment of the ^ rtgung * provided

see that the switching curves in the area between intermediate switching positions P «^« Wj ^ b «. ^S YY *

that the for the attack

hit provided snap-in snap

Parallel displacement of the ™ **

than the other locking lug and that
.. dius of curvature of the first-mentioned ^Ra * ^TNase _

ner and the ^ »™ ^^^ ί« ^ d "r their locking lug larger than ^{the K} ""P ™? f""switching curves in the Mttlast
dta «

for 3 more steering column switches ^ Driving direction display has been proposed at such a rollover from an intermediate switching position is avoided in the other intermediate switching position. This steering column switch has a switching part with two locking elements and a stationary one Switch part with two switching cams associated with these locking elements, on which the Support latching elements resiliently and of which the STS? Limiting stop for the intermediate switch positions wearing. The ones with the limitations

S ^ TZJZ ^Urdle fc g on-

of
the

beUp.elsngr
F1 g. 1 one

zen _{top view of} the locking lugs of the RastF1 g. 2 a urauisicni

^"Ze g _{schnUtenen Raslbol.} idling

.3 one

35 _d locking bolts along j aures u

HH InT g _f 1, _{switching curves}

^ Seeing switch part with indicated locking positions des, astbo.zens

St F i, 5 ^ - "hi" -un * den SchaHertei, lengthways

shows, a steering column switch is also known in which the contact piece is on via two locking elements two separate switching curves of the fixed bracket part is supported. The two switching curves overlap so that again e.ne superposition of the force-displacement characteristics of both locking systems with the Disadvantages occurs which are already related with the steering column switch according to the German Offenlegungsschrift 1,505,586 have been discussed

It is the object of the invention to verbese ^ a steering column switch of the type mentioned above, that the expense of parts of the locking device

is reduced, whereby the intermediate switching positions are independent. the activation of the work detents can be defined. Above all, it should be possible to include the advantages of separate switching ^{curves for the between B} _C h _e ns _C stop positions and for the work rest positions. t
Recording ^^ on. m
.drawn from ^ wire
nen that the R »
(Fig. 2), dall

_R J _{Mzcn torsional} J _{Fi can be recognized} -

on top of each other lie £ ^ _{'12 wilters protruding as} the (Fig. 2), dall d «! Kas _{Rastn & sen} curves

Ras nose ¹¹ "^ _h 7 have the _{radius of curvature} n. Mnuntend.» ^ ™ Nahrungsmittel «Μ or switch yoke 30 The fesu .n ^.. Ss _different

'"& _ha , the curving locking tracks 20 and nen * ™ hilft \ _{Μη the Ras} tnasen II, 12 slide,

^{M. w} " ^e _ft ° ^e ? ·" J., "^^ 12 the locking lane 20, namely ^ 1 of the r ^ast _R ^as _{st lane 2S assigned} . The of the locking lug ^ i e _{Berdch between ά}

shifted in parallel. The ν ^ _{Hj) fe yon Be} .

and 23 of the locking track 20 _{go over} to the outside, respectively. fbhn 25 shows in the area of the intermediate

switching positions each have a transition point 26 or 27. As shown in FIG. 4, the radius of curvature of the rounding of the locking lug 12 is smaller and the radius of curvature of the rounding of the locking lug 11 is greater than the radius of curvature of the switching tracks 20, 25 in the central locking position area. The locking lugs 11, 12 and the switching tracks 20, 25 are coordinated so that the locking lug 12 can only be seen in the area between the intermediate switching position 21 and the working position 22 and between the intermediate switching position 23 and the working position 24 with the corresponding parts of the locking track 20 and the latching nose 11 is only in engagement with the corresponding part of the latching track 25 in the area between the intermediate switching positions 21, 23.
In the middle locking position, the locking lug 12 does not rest on the associated locking path 20, while the locking lug 11 slides on the locking path 25 associated with it. The locking lug 12 touches, ihve locking track 20 only at the limit stop 21 or 23. This position of the locking lug 12 is indicated at the point 12 '. In this position, the locking lug Ul has not yet overcome the transition point 26 at the point IV , so that the steering stick switch lever, not shown, automatically returns to the central locking position after it is released. It is avoided that the switching part with Schalthebcl, Schaltgjied and locking bolt 10 inadvertently jumps from one intermediate switching position into the other intermediate switching position. The position of the latching lug 12 in the working latching position depression 24 is shown at the point 12 ″. The latching lug 11 is lifted off the associated latching track 25 at the point 11 ′.

1 sheet of drawings

Claims (3)

Steering column when changing direction of the motor vehicle- patent claims: ges!) Ur is low. This is mostly the case when there is an oversight when driving on straight roads. 1. Switch with a gear by means of a shift lever or a placement in a different lane from a central locking position is shown in each case via an intermediate 5. The travel direction indicator is switched off automatically after switching position with self-release in two completed changes of travel direction. This leads to uncertainties in the switching part kehr, which has two locking elements, since the other road users are irritated by the permanent false display associated with these locking elements,
fixed switching curves, on which the io. In order to eliminate this disadvantage, locking elements are already resiliently supported, and of which steering column switches are known, as from the German the one limit stops for the intermediate Offeniegungsschrifttn 1505 586 and 1505 641 to switch positions, in particular steering column which have two self-releasing intermediate switches for indicating the direction of travel in driving switch positions, each of which is between one, characterized in that 15 working position and the central position, the two locking elements as locking lugs (11, 12) In these intermediate switching positions, a bolt ( 10) are designed and that the switching functions of the adjacent working noses and switching cams are already carried out in such a way that they are locked to one another. The intermediate switching position is not correct, so that the latching lug (12) that hits the limiters is only automatically left after releasing the switching lever strikes (21, 23) and the switching lever then takes up the central latching position again in the area between an intermediate latching position. The switch can be set to the switching position and the adjacent working detent, therefore, optionally in a self-releasing intermediate position with part (21, 22; 23, 24) of the train switching position or in a corresponding switching curve (20) and the other detent position. Change of direction at nanase (11) only in the area between the intermediate »5 almost unchanged straight ahead switching positions are then engaged with part (26, 27) of the switching curve (25) belonging to the train via the self-releasing intermediate switching positions. displayed. 2. Switch according to claim 1, characterized in the steering column switch according to the German shows that the switching curves (20, 25) in the laid-open specification 1 505 586 is very swiveling Between the intermediate switching positions, the switch piece can be connected via two switch pins parallel to the springs are shifted that the stop the switching curves of the fixed switch part from the days of limitation. The switching cams designed as webs Latching lug (12) corresponding to the parallel displacement has a latching receptacle into which the switching piston the switching curve protrudes further than the indications of the contact piece can engage. The pacified Latch (11) and that of the curvature locking position are thereby pivoted dius of the rounding of the first-mentioned locking lug of the contact piece in both directions of rotation (12) smaller and the radius of curvature of the run ranges, with increasing adjustment angle tion of the other locking lug (11) larger than that of the webs are more and more deflected. this The radius of curvature of the switching curves in the middle means an increase in the area required for adjustment is, these roundings 40 such force. The contact piece is now pointing to the end have the same center of curvature. additional stops, which against resilient fingers 3. Switch according to claim 1 or 2, characterized ger abut and so marked on the way to work rest, that the angular locking pin (10) position an additional increase in the adjustment force conditional in a suitably trained recording. This increase in force at the wasteful Switching part is guided against rotation. 45 marking of the switching piece identifies the intermediate gearshift. By superimposing the force-displacement characteristics of the shift bolt on the shift curve and the stop on the resilient finger results in a resulting force-displacement characteristic 50 which the intermediate switching positions are not always clearly recognizable due to the tolerances of the components The invention relates to a switch with a device, since before the intermediate switching position is reached by means of a switching lever from a central detent position, an increase in the adjusting force is already to be observed in each case via an intermediate switching position with self-drawing. Since the adjustment angle between the triggering in zv / ei neighboring work latching positions 55 different switching positions is also small, adjustable and two latching elements having no sufficient switching security can be achieved with this be-switching part and with two steering column switches associated with these latching elements,
orderly, fixed switching curves, on which the steering column switch according to the German