DE2011955A1 - Windshield wipers with rope sling antneb - Google Patents

Description

-: nezicafnbrik fur car accessories Gustav Hau Gnbll .., 712 rivet

All 757

PAT / J / Vo / Wi 11.3.1970

Windshield wipers with rope loop drive

The rfindune relates to a windshield wiper with a pulley drive, in which the Wisoher shaft carries a pulley that is driven by a push rod controlled by the drive motor and a cable that loops the pulley at least once and is fixed to it without slipping and its ends are attached to the push rod.

In a windshield wiper of this type, guiding the thrust rail on the pulley often causes great difficulties. For this reason, provides a known arrangement before, the ^e dniJ ehubstunge has two broad Luschen, between which the pulley is guided and so that the rope is mounted face down in the center of the plates comprising the lower part of the sheave. In this configuration, the rope is difficult to access and can therefore not be easily replaced. In addition, the end of the push rod is coupled to the drive via the cable loop only in a self-supporting manner, so that the cable must take over all of the holding and bearing forces. This is particularly critical when the wiper of the barbeque wiper spreads soot over a large angle. The ends of the rope are then attached to the push rod at a correspondingly large distance. However, this means that the Aufh.ftn'-c of the push rod on the rope becomes even more unstable.

The object of the invention is to improve a windshield wiper with a rope loop drive so that even with a large wiper angle of the wiper arm and thus a large adjustment path; the push rod the end of the push rod is clearly, guided and _t <related, without directly loading the rope and making it difficult to replace the rope. *

109840/0798

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The windshield wiper with Swilsehlingen drive, in which the front shaft carries a pulley that is driven by a thrust controlled by the drive motor and a rope that loops the pulley at least once and is fixed in this slip-free and its ends are attached to the push rod is. According to the invention, characterized in that the sheave carries lateral guide shafts which take and guide the end of the stroke and doO the push rod probe in the area of the rope loop drive has a central recess in which the ends of the rope are covered and fastened. In this embodiment, the end of the push rod is clearly guided in the receptacle of the sheave and rain. In addition to covering the ends of the rope, the safety bags for changing the rope are easily accessible. This wirh after a .v'eilerhiltlun "further improved by the rope ends in Dall Horoieh of the Be l & cfteibe remote edges of the recess are secured in the push rod end.

It can be achieved in a uniform cable pull without a tunnels by the fact that the roller sheaves facing the sheave are formed in the area of the recess as part of an ellipse, the focal points of which meet the points of definition of the filling areas . In this way it is achieved that the rope ends extending from the unwinding point between the sheave and the unwinding edge of the push rod always assume the same shape because the style sheave has a rough cross-section.

pie fastening and rope ends is, according to one embodiment, eo executed that the fndcn of the rope designed as loops are attached to fastening. ^ unirsbolzen in the recess of the End of the push rod are engaged. This type of attachment makes it easier changing the icile is crucial.

Pie side F ^; According to a further embodiment, the outer sheets of the pulley can be placed on the pulley

109840/07 * 8

. , BATH

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are limited in the rotation of the pulley engages the push rod end. Dieee B reh.be we · « The setting of the seizure is based on the desired angle Wtacherwelle matched. The pulley and the side ones Leaders are primarily familiar with tin pieces and plastic be made. In addition, a noise reduction is achieved, since no metal parts roll or roll on each other slide against each other.

So that day thrust tungciiendc in Sero I des Seilschliugeuautrlebes is not weakened too much, does without deterioration of the guidance between the pulley and push rod or aggravation exchanging the rope between the two attachment points for the ends of the rope and between the two side wounds the recess a connecting web disordered.

the invention is based on a village depicted in the drawings Exporters example uhhor explained. Cs Kolgen:

Fig. 1 Ib longitudinal section "inen Sollecialiiigeaaiittrieb a" End of a push rod «and

Fig. 2 is a view of the drive.

IUe push rod 10 is in the known manner via the drive * motor and a crank in an arrow belt move back and forth. The ScUschiinganantrleb now has the task of this "straight-line tax movement in" Prebbtw "giin" for the Wieoherwella 30 to convert.

The wise shaft 30 is with a pulley S9 irerbunilon, which carries one part of the circumference of the infill plates 2k and 25. This wedge pulley 29 forms a receptacle and guide for the push rod end 10 in this area a corresponding Ausnehsninc: the pulley 29 uncrechiebbnr set

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Ια Be ro i cli des Sei Ischl ingemintriebee, the Schubetaiigeneude 10 has a central recess Jl, which is delimited by 15 Scitenvünde. These sides 15 form what are known as rolling edges 16 on the side of the push rod facing the pulley 29 and bear against the circumference of the pulley 29. 1Ie rope ends are guided into the recess 11 and attached to the edge facing away from the sheave 29. These fastening files are easily accessible and easily detachable. The ends of the rope 17 are designed as loops 18 and 20 with the help of pin necks 11 and 21. These loops J8 and 20 are hung on fastening bolts 12 and 13 which are arranged in the recess 11. The I-an ^ e of the recess 11 and the distance between the fastening bolts 12 and 13 are at the required travel of the push rod 10

The web lh connects the two crosswinds .15 of the recess 11 in Peroich between the defection points 12 and 13. The fastening points of the rope ends, however, remain light

As can be seen in particular from the cross section according to FIG. 1, the rope 17 has no tensioning elements such as springs or the like. This design of the rope sling drive is made possible by dnf! the Abrol lkantftn 16 of the Schubetonrenendcs form part of a Ellipeonbflhn, whose foci with the Defefttif "0: ^T tpiuikton 12 and 13 suBammenfitllen. This ensures that the free ends of the wedge in every step of the rope have a constant effect.

The pulley 29 with the guide plates "* and 25 is preferably made in one piece using plastic. Farcit lets see a noiseless rewegungsublnuf. of the rope line drive reach.

Such a rope loop drive can also be used at both ends a push rod can be provided if via a fan shaft two push tones can be controlled.

109840/0798

BAD GlNA

Claims (1)

- 5 - Λ 11 757 RAT / J / Vo / Vt 11th 3rd! W. Γ η t e i) t a η s ρ r ·; ο h ο ι, I. Windshield wiper with rope loop ^{drive, in which the V. r} i-V_yscliurwelle tr.'igt a rope pulley, which is driven by a push rod controlled by the drive motor and a rope that loops around the pulley at least once and is attached to it without slipping and its hands are on the push rod are attached, characterized in that the pulley (29) carries lateral guide holes (24, 25) which receive and guide the push rod end (io), and that the push rod end (io) la Horoich of the Seilschlingcnantriebes has a central recess (11) , in which the ends of the rope (1?) are covered and fastened. 2. Windshield wiper according to claim 1, characterized in that that the ends of the rope in the area of the pulley (29) turned away Edges of the recess (Ii) are attached in the push rod end (10). 3. Windshield wiper according to claim 1 and 2, characterized in that that the rolling edges (16) of the push rod end (l <>) facing the pulley (29) in the l'.ereicb of the recess (il) formed as part of a nilipse, whose Itrenii points with the attachment points (12, 13) of the rope ends coincide. . H. Windshield wiper still claim 3, characterized in that the ends of the rope (1?) All loops (18, 2o) are formed, which are hung on IlefeetignnEsbolzen (12, .13) in the recess (11) of the push rod end (IQ) - ■ 109840/0798,; t κ ι *. - O - Λ 11 757 5. Windshield wiper according to Claim 3, characterized in that that the Abrollkantcn (16) roll on the circumference of the pulley (29) with a round ijuorschnitt. 6. A screen wiper according to claim 1, characterized in that the lateral guide plates (24, 25) dor pulley (29) are limited to the Umfunpsbereich that comes in .Drehbewegung of the sheave with the .Schubstangenende (lo) in Hingriff. 7. Windshield wiper m: ch claims 1 to 6, characterized in that the recess (11) of the push rod (lo) between the two fastening points (12, 13) for the cable ends has a connecting web (i ^f i) between the two side winds (15 ) the recess (11) carries. 8. windshield wiper still claim i to 7, characterized in that dnO the pulley (29) with the lateral guide plates (24, 25) made in one piece from plastic 1st. 109840/0798 BAD