DE7318743U - WIPER BLADE FOR MOTOR VEHICLES - Google Patents

Description

jAndrejewski, Honk · AG «sthuysen patent attorney ·

Diplofn-PtiyiHMr Dr. Waltor Andrefewski PJplom-lgnleur Dr.-lng. Manfred Henk

aktAi 41 5

4300 teen, May 17, 1973

Utility model registration Jacques BUILDS

213 Boulevard du Souverain

1160 Brussels, Belgium

Paul JOURMEE Chateau de Re illy

βθ Reilly (par Cbfcumont-en-Vexin)

France Wiper blades for automobiles.

The innovation relates to windshield wiper blades for motor vehicles, consisting of a rubber lip attached to an elongated supporting element and a coupling element for the windshield wiper arm attached to the supporting element such that it can be pivoted.

Apart from constant developments in the special profiling of the rubber lip and the design of its supporting element the professional world deals in particular with the special

• · · ι

Andre | ew * ki, Honk & Gesthuysen, patent attorneys, 4300 EtMnI, Theoterpbta 3

Training of the Kunpiungsorganes “which is made of metal or plastic or partly of metal and partly of plastic in various forms. In the case of the coupling organs consisting entirely of metal, two-part coupling organs have been known for many years, which consist of a hollow part articulated in the middle of the support element for the rubber lip and a leaf spring attached at one end. When the wiper arm is removed, the wiper arm is actuated accordingly. In another version, which has also been in use for many years, the load-bearing part of the coupling element for the Wiööhörorai is made of plastic , while, as with the coupling element, which is made entirely of metal, there is again a metal leaf spring to fix the front end of the wiper arm is provided. Finally, one-piece coupling elements are also known, which consist of a relatively elastic plastic and over which the hook-shaped free end of the wiper arm is pushed while the elastic coupling element is simultaneously compressed, in order to then return to its original position that clamped the wiper arm.

The innovation has set itself the task of a windshield wiper blade for motor vehicles of the type mentioned Train coupling member in such a way that it is convenient and inexpensive in large quantities despite a two-part training produced and can be assembled just as quickly and conveniently and attached to the support member for the rubber lip.

711 * 74330

Andrejewski, Henke & Gesthuysen, patent attorneys, 4300 Essen 1, Thecrteiplatz 3

GsksnnssiCiinet is a
of the type mentioned at the beginning essentially in that the coupling element consists of a hollow part open at the bottom made of relatively hard plastic and a tongue part made of relatively elastic plastic arranged in the open wall of the carbon part, the two parts being pivoted on a common axis in the support element ** » j are arranged and the tongue part forms a socket for the end of the wiper arm pushed into the cavity of the hollow part.

In contrast to the usual conception in training a coupling element, according to which the hook-shaped bent free end of the wiper arm was hooked from the outside over the coupling element and fixed there * Formation of the coupling element of this hook-shaped free end of the wiper arm simply into the cavity of the hollow part inserted and held in this Aushöhlvng by the tongue part forming a stop or an abutment.

Further special features and features of the innovation emerge from the following description of some preferred exemplary embodiments based on the accompanying drawing; show it:

Figure 1 shows a longitudinal section through an embodiment of a coupling member in an innovation according to the invention Wiper blade;

Figures 2 and 3 sections through Figure 1 along the lines II-II besnr · III, FIG. 3 showing the section in an enlarged Scale shows;

Andrejewslci, Honice & Gesthuysen, patent attorneys, 4300 Essen 1, Theaterplatz 3,

· I

FIG. 4 shows the side view of the hollow part of the coupling element;

FIG. 5 is a plan view of this hollow part;

FIGS. 6 and 7 are sections through FIG. 5 along the lines VI-VI respectively VII-VII;

Figure 8 is a side view of the tongue fairy part of the coupling member;

FIG. 9 is a plan view of this tongue part;

FIGS. 10 and 11, sections through FIG. 9 along the lines X-X and FIG. XI-XI;

FIG. 12 shows a representation corresponding to FIG. 1 briefly

before uncoupling the wiper blade from

Wiper arm;

FIG. 13 shows a representation corresponding to FIG. 1 further embodiment;

FIGS. 14 and 15 are sections through FIG. 13 along the lines XIV-XIV resp. XV-XV;

FIG. 16 shows a side view of the hollow part of this variant; FIG. 17 shows a plan view of this hollow part;

Andrejewski, Honke & Gesthuysen, patent attorneys, 4300 Eisen 1, Theateiplcrtz 3

Figures 18 and 19 sections through Pig. 17 along the lines XVIII-XVIII resp. XIX-XIX;

FIG. 20 is a rare view of the tongue part of this variant;

FIG. 21 is a plan view of this tongue part;

Figure 22 and? .J sections through Figure 21 along the lines XXII-XXII resp. XXIII-XXIII; and

FIG. 24 shows a representation of this variant corresponding to FIG. 1J shortly before the decoupling of the wiper blade from the wiper arm.

A windshield wiper blade according to the invention consists essentially of the following main parts in the two exemplary embodiments shown in the figures: the coupling element I _9, the middle bridge part 2 of the support element for the rubber lip, the pivot axis 3 connecting this middle bridge part with the coupling element, the wiper arm 4 * the hollow part 5 and the tongue part 6 of this coupling member.

In the first embodiment shown in FIGS the hollow part 5 consists of a relatively hard one Plastic from the actual clutch housing 7 with the bottom open, essentially U-shaped cross-section, which has a shoulder 8 with shoulder surfaces 9 and 10 at the rear end

w t »

Andrejewsld, Honke & Gesthuysen, patent attorneys, 4300 Essen l _r Theaterpkttz 3

has on each side and a transverse bore 11. At the lower edge of this projection 8, a transverse groove 12 is formed following the hollowing out of the hollow part. The tongue part 6, which is made of relatively elastic plastic, consists of the actual tongue 13, which near its own end has a nose 14 forming the stop for the free end of the wiper arm 4 and at the rear end has two parallel lugs 15 and 16 which are slightly further apart than the extension 8 running in the center line of the hollow part is wide. Both approaches have coaxial transverse bores 17 and 18 which, when the hollow part is assembled with the tongue part, are aligned with the transverse bore 11 of the hollow part so that the pivot axis 3 can be pushed through both parts. At the connection of the actual tongue 13 with the rear projections IZ and 16, a transverse rib 19 is formed, which can be pressed into the transverse groove 12 of the hollow part 5 with little friction. On both sides of the verfaindungsbereh.es between the actual tongue 13 and the approaches 15 and 16 of the tongue file 6 are also small triangular noses 20 and respectively. 21 formed. When the two parts 5 and 6 of the coupling element are put together, these two lugs lie against the rear wall of the cavity in the hollow part 5 and, as a result, together with the transverse rib 19 of the tongue part engaging in the transverse groove 12 of the hollow part, ensure that the transverse bores 17 are absolutely coaxial. H and 18. In this position egg parts of the coupling element, the distance of the nose 14 of the tongue part 6 from the rear edge of the cavity of the hollow part 5 is equal to or slightly greater than the length of the bent free end of the Wisoherarmes 4, so that

Andrejewski, Honke & Gesfhuysen, patent attorneys, 4300 Essen 1, Theaterptatz 3

this, when it is pushed into the cavity of the hollow part, is properly held by this nose in the cavity and any accidental separation of the wiper blade from the wiper arm is made practically impossible will. To separate these two parts respectively. to uncouple the wiper blade from the wiper arm, as well as this is the case with the coupling elements made of metal, the tongue part is pressed down a little so that the nose 14 releases the end of the wiper arm 4.

The turn shown in FIGS IJ> to 24 second execution \ example has the aforementioned main parts 1 BEZW to sixth to 7 · The difference compared to the embodiment described above consists essentially in the shape of the two parts 5 and 6. The relatively hard synthetic material. Fabric existing hollow part 5 has here at the rear end < two parallel lugs 22 and 2J with coaxial cross beams 24 and 23. The tongue part 6, however, has a single one; extending in its centreline rearward extension 26 with j a transverse bore 27. Again, the actual tongue ■> 13 has a nose or abutment 14 and over its entire width at the junction with the rear lug 26 a triangular cross-rib 28 .b ^ in When the two parts 5 and 6 are put together, the projection 26 of the tongue part 6 pushes between the two parallel projections 22 and 23 of the hollow part 5, so that the transverse bores 24, 27 and 25 are coaxial with one another and the pivot axis 3 can be pushed through. The triangular transverse rib 28 again lies against the rear edge of the cavity in the hollow part 5 and favors it

73

Andrejewslei, Honice & Gesthuysen, patent attorneys, 4300 Essen 1, Theaterpkrti 3

thus the alignment of the two parts 5 and 6 to one another. the The mode of operation of this exemplary embodiment is otherwise the same as in the exemplary embodiment according to FIGS. 1 to 12th

Of course, the shape and dimensions of the two parts is dependent of the coupling organ of the shape and dimensions of the free end of the entered wiper arm from · If a relatively well in the above description of preferred embodiments \ for the hollow part of a relatively hard or rigid plastic and the blade part elastic plastic than ^! If the preferred material to be used has been named, you can of course leave both parts out of any other

manufacture suitable natural or artificial material, j

as far as the same advantages result from these materials

can be enough, as with the above-described execution!

examples. ;

Protection claim :: Üehe:

Claims (8)

>> ι ilia Andrejewski, Honks & Gesfhuysen, patent attorneys, 4300 Essen T, Theaterplcitz 3 claims for protection: 1) Windshield wiper blade for motor vehicles, consisting of a rubber lip attached to an elongated support element! and a swivel-mounted »coupling element: for the wiper arm, characterized in that the coupling member consists of an open at the bottom Hollow part (5) made of relatively hard plastic and one in the open wall of the hollow part arranged tongue part (6) consists of relatively elastic plastic, both parts being pivotable on a common axis (3) in the support member (2) are arranged and the tongue part (6) has a stop (14) fttr the pushed into the counting of the hollow part end of the Wiper arm (4) forms. 2) wiper blade naoh claim 1, characterized in that the Aushöhlurg of the hollow part (5) of the coupling member (5 * 6) is designed according to the shape and dimensions of the end of the wiper arm (4) to be pushed in 3) wiper blade according to claim 1 or 2, characterized in that the hollow part (5) of the coupling member (5 * 6) Relatively hard plastic at least one rear approach (8 and 22, 2JJ) with a transverse hole (11 and 24, 25) for the pivot axis (3) and the relatively elastic plastic tongue part ($) of the coupling member also has at least one rear extension (15 »16 and 26) with a Andrejewslci, Honice & Gesthuysen, patent attorneys, 4300 Essen 1, Tneaterplafz 3 for the cross hole of the hollow part coaxially running cross hole (17, 18 and 27) for the simultaneous storage of both parts on the pivot axis. 4) windshield wiper blade according to claim 3, characterized in that that the hollow part (5) at the rear end has a single extension (16) running in the center line with a transverse bore (11) and the tongue part (6) at the rear end two corresponding parallel lugs (15, 16) with corresponding Has cross bores (17 * 18). 5) Windshield wiper blade according to claim 3, characterized in that the hollow part (5) at the rear end has two parallel \ side lugs (22, 23) with coaxial transverse bores (24, 25) and the tongue part (6) at the rear end has a corresponding | has denden, running in the center line single projection (26) with a transverse bore (27) corresponding to the transverse bores of the cavity part. ^] 6) wiper blade according to one of claims 1-5, characterized! characterized in that the tongue part (6) has a transverse rib (14) on its upper side facing the cavity I of the hollow part (5) with a triangular cross-section at such a distance from the rear edge of the cavity of the hollow part has that the inserted wiper arm (4) with its free end through the transverse rib can be fixed as a stop. , ThtKiUftjpkitz 3 t • ■ · · · · · S. Andrejewski, Honke & Gesthuysen, patent attorneys, 4300 Esstfn'l I. - 11 - 7) wiper blade according to one of claims 1-6, characterized in that the two parts (5 * 6) of the Coupling member a transverse recess (12) respectively. have a corresponding elevation (19, 20, 21 or 28) and thereby mutual fixation can be achieved. 8) wiper blade according to one of claims 1-7 »characterized in that the receptacle for the end of the wiper arm (4) forming the hollow part (5) of the coupling element made of a reinforced polyamide and the free end of the wiper arm fixing tongue part (6) of the coupling element z-B in this hollow part. consists of an acetal resin. Patent attorney.