DE2251453A1 - WIPER WIPER WITH A HOOK-SHAPED WIPER ARM AND A FLAT TURNING AXLE FOR THE WIPER BLADE MOUNT - Google Patents

Description

PATENT LAWYERS SKOLN 61

MAXTON SFv. ■ MAXTON jr. pferdmengesstr. eo

DIPLOMA. ENGINEERS October 6, 1972

Applicant: Societe Anonyme pour! 'Equipement Electrique

des Vehicules S. E. V. Marchai, F-92 Issy-Les-Moulineaux

Designation: Windshield wiper with a hook-shaped wiper arm and a flattened axis of rotation for the. Holder of the wiper blade

Our reference: 559 pg 723

The invention relates to a windshield wiper with a hook-shaped Wiper arm and a flattened axis of rotation for holding the wax blade.

Windshield wipers are known in particular for motor vehicles that have a holder for a wiper blade, which is articulated in its middle part at the end of a wiper arm, which is connected to a back and moving motion is driven. It is also known that it is necessary to ensure a good cleaning the windshield of motor vehicles, the holder of the wiper blades and to be able to replace the wiper blades connected to it as soon as the rubber wiper blades show signs of wear or have damage. At the moment there are a large number of different Types of articulation between the wiper arm and the wiper blade holder on the market that require a Vehicle is equipped with a wiper arm of a certain type, a spare part when changing the holder of the Wisühblattes

309818/0760

Telephone: (03 21J 33 02 38. Telegram: Inventator Cologne. Place of fulfillment and teas for both parts is Cologne Oeutaoh Bank AQ Cologne (BL2 37O 7OO SO) Account No. 123Ο1Θ1. PoeteoheoMUontO Cologne (BLZ 37Ο1ΟΟ BO) KtO no. 1Ö22B1 »13

225H53

_ 2 -

to choose whose linkage to the one originally attached to the vehicle Wiper arm is adapted if the wiper arm does not have to be replaced within the life of the vehicle.

In PR-PS 1 079 609 a linkage between the wiper arm and Wiper blade holder described, after which the wiper arm is a hook-shaped has bent end part for the articulation, wherein the bent hook part has a recess which a connection by a lock engaging in the notch between the wiper arm on the one hand and an interposed bracket on the other hand allowed, which is arranged on an axis of rotation of the holder.

In the additional certificate no. 69-02439 in France there is a linkage Described between the wiper arm and the wiper blade holder, according to which the legs of the U-profile of the holder for the wiper blade are widened in the area in which the pivot axis is located, the web of the profile being broken through in this area is, and wherein the pivot axis is attached directly between the two legs of the bracket and two parallel and flat surfaces perpendicular to the center line of the bracket having, wherein the axis of a flat is provided for engagement with a recess carried by the end part of the wiper arm: '.

As can be seen from the above, a wiping noise can be seen according to PR-PS 1 079 609 not directly with a holder for a wiper blade according to the additional certificate in France 69-02439

309818/0760

get connected. From an economic point of view, this deficiency results in considerable disadvantages, since a user of the type want to change the wiper blade holder, must also replace the associated wiper arm at the same time as the replacement holder. The present invention aims to obviate this drawback by providing an intermediate bracket that allows the adjustment a holder according to the preceding description on a wiper arm according to PR-PS 1 079.609 allowed.

The invention relates to a new industrial product, which is a windshield wiper, in particular for motor vehicles which is characterized by firstly a wiper arm, the end of which is bent back in the shape of a hook, the bent over Hook part optionally has a recess near its end; secondly, a holder for the wiper blade with a U-shaped cross-sectional profile, wherein the web of the U-profile is perforated in the area of its articulation, the U-legs preferably also being preferred are widened in the area of the articulation, with an axis of rotation with opposite flattening between the U-legs is attached in such a way that said flattening stand at right angles to the center line of the bracket, and thirdly an intermediate bracket, one leg of which may be has a projection which can engage in a possibly present recess at the end of the wiper arm and its other leg has a reinforcement that is more significant towards the end of the leg than towards the back of the bracket, the bracket in the Inside of the hook part at the end of the wiper arm is inserted so that

309818/0760

the bent part of the bracket is on the inside of the bent Hook part is supported, the flattened axis of rotation is seated in the back of the bracket, the legs of the bracket being their largest Distance, which is essentially equal to the diameter of the axis of rotation, in the back of the bracket and its smallest distance, which is in is essentially equal to the distance between the flats of the axis of rotation, at the mouth opening of the bracket.

In a first modification of the embodiment, the intermediate The bracket is not firmly connected to the wiper on the inside of the hook part in that it is arranged: In this pail if the hook part at the end of the wiper arm has a recess in the vicinity of its end and the bracket forms one of the wiper arm detachable part and has a projection on one of the legs of the bracket, which into the recess in the hook part at the end of the wiper arm engages.

In a second modification of the embodiment, the intermediate Bracket firmly connected to the wiper arm, for example by welding, after it is in its intended position in the hook part is inserted at the end of the wiper arm; in this case it is not necessary that the wiper arm has a recess in the vicinity of the Has the end of the hook part, and since the wiper arm has no recess possesses, the intermediate bracket has no projection on one of his thighs; however, it can also be used when the connection of the wrist arm with the intermediate bracket takes place in a non-releasable manner, a recess in the end part of the wiper arm and a projection on the intermediate

switched bracket are provided so that the projection in the Engages recess.

In a preferred embodiment, the holder for the wiper blade has an intermediate part made of plastic in the area of its articulation, which on the inside the legs of the holder covered in the area of the articulation; said intermediate part made of plastic can be fixed with respect to the holder by means of the axis of rotation that both the bracket and the side panels of the Intermediate part pierces; The bracket is preferably made from a flat metal part that is approximately the width of the wiper arm has, wherein the metal part to form a reinforcement in the front part of the mouth opening of the bracket on the inside the bracket is bent back; the protrusion on the bracket can be replaced by a depressed hump on each of the thighs of the Bracket to be attached, which does not have the reinforcement.

E3 it should be noted that the use of the bracket, the part of the The above-described device allows a wiper arm of a known type to be adapted to a bracket of a known type, wherein the holder is not originally intended for the wiper arm must be as described in PR-PS 1 079 609. To the three parts of the device according to the first modification of the embodiment assemble, nan first inserts the bracket into the Hook part at the end of the V / iocharma and push it in until it clicks into place no-38 Voruprungo into the recess in the bent back Hook part in front; because you bring the holder deodorant wiper blade in

J038 18/0780 bad or, g, nal

the position that its holder is essentially perpendicular to each other Wischann stands and pushes the hook-shaped end part of the wiper arm into the recess in the web of the U-profile of the bracket; then move the flattened axle backwards by moving in the opposite direction into the space between the two legs the bracket previously attached to the wiper arm; the retreating movement continues until the axis is in the rear of the Bracket is located; then the bracket is 90 ° opposite the

To pivot the wiper arm, so that a lock is created between the wiper arm bracket unit and the bracket, as the diameter the axis of rotation is greater than the clear width between the legs of the bracket, although this width is the implementation has allowed, since it is essentially equal to the distance between the flats of the axis of rotation. For the second variation of the Embodiment one proceeds in the same way, however, the latching of the projection in the recess is not necessary and can be replaced by welding.

BATH ORIGINAL

309818/0760

t, C- \ J J * \ i% J

For a better understanding of the subject matter of the invention, an exemplary embodiment is shown below with reference to the drawing, which does not limit the invention in any way. Show it

Pig. 1 shows the various parts for articulating the wiper blade on the wiper arm of a windshield wiper according to the invention £ ■■ - ■■ in exploded view,

Pig. 2 shows a section along the central plane of the device through the area of the articulation of the windshield wiper in Pig. 1, with all parts arranged in their working position.

In Pig. 1 is the end of a wiper arm 1 at point 2 to one Hook bent, the bent-back end ligament near his Has a recess 4 at the end.

The holder of the wiper blade, which is connected to the arm 1. is denoted by 5 as a whole. The bracket has a U-shaped profile, the web 6 of which has a recess in the storage area. In this area are the legs 7a, 7b of the profile in the form of brackets widened. These have two Holes 8a and 8b for receiving an axis of rotation 9. The axis of rotation 9 has two opposite flats 1C ^ 10b, wherein the flattened areas are perpendicular to the center plane of the holder 5. Between the legs 7a, 7b of the holder 5, namely in the area of the articulation in which the web 6 of the U-profile the bracket is missing, an intermediate part made of plastic is

309818/076 0.

BAD ORlGINAL.

-Οποί, daa ami two side surfaces are formed on the inner surfaces the legs 7a, 7b rest in the area of the articulation, the two side surfaces being connected to one another by two end bridges 11a, 11b are connected. The axis of rotation 9 passes through the two surfaces of the intermediate part 11 in the area of holes 12. The holder holds a wiper blade 18.

Between the Wiooharra 1 and the axis of rotation 9 of the bracket 5 is a bracket is arranged, which is denoted by 13 al π whole. Of the Bracket 13 is formed by a flat metal part that the Width of the wiper armo 1 benitzt, the flat metal part twice is bent, firstly by a reinforcement 14 in your area to form, which lies between the legs, and secondly to produce a rear part of the bracket 13. At 16 he is Leg denotes the bracket that does not have the reinforcement 14. In the vicinity of the end of the leg 16, a hump 17 is pressed through, which forms an outwardly projecting projection. In the area of the reinforcement 14 is. the clear width between the legs of the bracket 13 is essentially equal to the distance of the flats 1Q ^ 10b of the axis of rotation 9. In the area of the rear part 15 of the bracket, d. H. in its curvature, the inner width is equal to the diameter of the axis of rotation 9 and the curvature of the inner arc of the rear part 15 has a radius equal to that of the axis of rotation 9.

In order to assemble the various parts of the windshield wiper described below, the bracket is inserted into the hooks 1a-2-3 aa

309818/0760

BATH ORIGINAL

The end of the wiper arm 1 is pushed in until the boss 17 is in the recess 4 summarizes, whereby the bracket 13 is locked with respect to the wiper arm 1. Then the wiper arm 1 'is between the legs 7a, 7b of the holder 5 is inserted where the web 6 is broken is, with the center line of the bracket approximately perpendicular to the Center line of the end of the wiper arm 1 is employed. By pulling backwards in the opposite direction to the previous one Movement is then the axis of rotation 9 hooked into the interior of the bracket 13, the hooking is possible because the distance of the flats 10a, 10b approximately equal to the distance between the reinforcement 14. and the leg 16 of the bracket 13 is. As soon the axis of rotation 9 is in the back of the bracket 13, the holder must be rotated 90 °, whereby a lock the axis inside the bracket results in the fact that the diameter of the axis 9 against »greater than the width between the Reinforcement 14 and the leg 16 is. Consequently, the bracket 13 is laterally between the widened legs of the bracket and held in the longitudinal direction by hooking against the wiper arm «

In this way, the connection of the bracket 13 to the wiper arm 1 is in the first line and the connection of the axis of rotation is in the second line 9 created with the bracket 13. It can be seen that a connection between the wiper arm 1 and the holder 5 is thus established.

As can easily be seen, the device according to the invention is particularly advantageous from an economic point of view by it allows »to the originally attached to the vehicles

309818/0760

BATH ORIGINAL

- ίο -

ten wiper arm brackets to attach the wiper blades, for example as replacement parts or as a bracket originally intended for a different type of windscreen wiper. It should be emphasized that the cost price of such an adjustment is particularly low, since the only additional part is the bracket 13 which can be made from a flat strip of metal by bending.

Of course, the embodiment described above does not constitute one Restriction, it allows any desirable modifications without thereby departing from the scope of the invention.

Expectations

BATH ORIGINAL

309818/0760

Claims (7)

Expectations 1. ) Windshield wipers, especially for motor vehicles, characterized by firstly a Wischarro, the end of which is bent back into a hook shape is, the bent hook part possibly having a recess near its end, Secondly, a holder of the wiper blade with a U-shaped cross-sectional profile, the web of the U-profile being perforated in the area of its articulation, furthermore the U-legs are preferably widened in the area of the articulation, with an axis of rotation with opposite agreements between the U- Tension is attached in such a way that said flats are perpendicular to the center line of the bracket and thirdly an intermediate bracket, one leg of which may have a projection that can engage in a possibly present recess at the end of the wiper arm, and its other leg a gain has to go further * e = fe to the end of the leg as projecting toward the Eückteil of the bracket, wherein the bracket vird inserted into the interior of the hook portion at the end of the wiper arm such that the bent part of the bracket on the inside of the bent hook part is supported, the flattened axis of rotation sits in the back of the bracket, the legs de s bracket have their greatest distance, which is essentially equal to the diameter of the axis of rotation, in the rear part of the bracket and their smallest distance, which is substantially equal to the distance between the flats of the axis of rotation * at the M & ulöffmmg of the bracket. 309818/0760 bad original " ^: · ^; '- ■ 22Sf457 - Υά - 2. Windshield wipers according to, napruch 1, characterized by g e k e η η, that the Ilakentcil at the end of Wiochari Has recess near its end, and that de · - Biigol forms a detachable part from the Wischarra and on one of its vision col carries a projection which into the recess in the hook part engages at the end of the wiper arm. ■ T ■■ ■ ■ 3. Windshield wiper according to claim 1, characterized in that the intermediate bracket with the Wiper arm is firmly connected, for. B. by welding after it is inserted into the hook part at the end of the Uischarms. 4. Windshield wiper according to claim 1, 2 or 3 »characterized in that the holder of the wiper blade in the area of their articulation, an intermediate part made of plastic carries the inner sides of the legs of the bracket in the area of the Anlenkxing covers. b. Window wiper according to Claim 1, characterized in that the intermediate part for the holder is attached to the servant by the axis of rotation which simultaneously passes through the holder and through the side walls of the intermediate part. 6.Scheibenwischer according to one of /j.-nprüche 1-5, characterized GEK c η η ζ eic Ii et η that dor bracket from a flat metallic!] Prepared in1 woaeiii in the width Wi loan dec sahurinn possesses wol -ii dan metal tri], ui.i nn the Mulüffmuig deß -int ¹ YM'iiUirkung to form; ai the inside of the bracket 309818/0760 BATH ORIGINAL is bent back. 7. Windshield wiper according to one of claims 1-6, characterized in that g e that the arranged on the bracket projection is made by a pushed-through hump, the sits on the leg of the bracket that does not have the reinforcement. BATH ORIGINAL 309613/0760 Blank page