DEF0017814MA - - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

Registration date: June 28, 1955. Advertised on December 20, 1956

GERMAN PATENT OFFICE

CLASS 63c GROUP INTERNAT. CLASS B 62d

F 17814II / 63 c

wiper blade

The invention relates to a windshield wiper and, more particularly, to the design of the wiper blade. - .; ■;

In order to better adapt the wiper blade to curved windows, it has already been proposed that to train the wiper so that the actual rubber body of the wiper blade from a Sleeve is worn, which consists of one or more flexible sections with one or alternate several rigid sections.

It is also known, the back strip of a windshield wiper blade with a flexible, preferably to provide embedded back strips made of metal.

Even if the known constructions of the kind described have a more even distribution of the pressure exerted on the wiper blade, they either do not work completely free of noise or the attachment of the connecting bridges to the wiper blade is imperfect or complicated.

The invention relates to an improvement of such windshield wipers, their wiper blades has an inlaid back strip made of flexible metal. According to the invention, that is The wiper blade is designed in such a way that the flexible back, which has a flat cross-section

609 737/223

Claims (1)

F17814II / 63c strip to achieve rigid sections at these points formed into a curved cross-sectional profile is. In this way it is achieved that within the wiper blade -. Stiff and flexible ^i; Alternate 5 ■ '■■ sections ^ with one another. , .., ·. At those points on the wiper blade where '' the stiff sections of the back strip are one or more connecting bridges are attached. The wiper blade according to the invention works completely silently and has an extremely simple structure and consequently an easy manufacturing option. By eliminating the metal sleeve mentioned at the beginning, the use of rustproof material is reduced to a minimum. Further, metallic Vdrsprünge be eliminated, which can damage the windshield: ',' ■ \ for example, an embodiment of the wiper blade of the invention is shown in the drawings, which is provided with a single connection bridge. ; ^ ;;. Sl ¹ Ii ² JiLzSO Fig. Ι shows a side view of the complete wiper blade, Fig. Ι a a section at the end of the same, .... ,, ,, .-. Fig. 2 is a rear view of the wiper blade; ■ '· * ^: Fig. 3 shows a side view of the wiper without * "'" Bridge · and ^ * ■ - · ■ - ■> ·. 4 is a rear view of the wiper, 5 and 6 show a plan view and a side view of the back strips embedded in the wiper, the sections of this strip being indicated in accordance with points a, b, c, d, e, f, g, h and i , "FigV'7 "ühd 8 sections" of the strip through the rigid and the flexible section and FIGS. 9 and 10 a side and back view of the detail of the wiper at the attachment points of the bridge. As shown in Figures _A 1 and _; 1 a..visibly, consists., The wiper rod from '' denl '"properKcne'ri" wiper ", sheet ι and the bridge 2, on which the removable, bare fastening device 3 for attachment to the not shown in the drawing Wiper-,. Arm is attached. Inside the wiper blade; along its upper, Ran des ... i '., -; fist- a-St-tire ./] - ,,, (See Fig. ι a, 5, 6, 7, 8) embedded, which is preferably made of metal. This strip has alternating stiff and flexible sections .. The stiffness of sections 5, 6, 7, 8 and 9 is obtained by curving the strip in the relevant sections, while the flexible sections 10, 11, 12 and 13 consist of flat parts thereof Strip / ^: consist.,; The bridge "2 'has .ge ^J. Suitable ends 14 and 15 to grip the upper edge i' of the rubber wiper" 1 at two points in stiff end sections of the same. The wiper 1 has in turn, on its upper edge 1 ', two essentially triangular protruding bulges 16, 17 which come to lie behind the ends of the bridge 2 so that they; stops against which the bridge is supported when it is mounted The triangular shape of the stops 16, 17 enables the wiper to be pushed into the ends 14, 15 of the bridge, while it usually prevents the wiper from being pushed out of the bridge Provided 1 ", the DSSR with the ends 14, 15 come into contact bridge to maintain a certain smooth movement of the wiper with respect to the bridge. I. '' Wiper blade ¹ -rriit 'a flexible, preferably made of metal, embedded' back strip, characterized in that the flexible back strip, which has a flat cross-section, is shaped into a curved cross-sectional profile in order to achieve rigid sections at these points.
v / O -: 2V Wiscfieifölatt * 'iiich ^ Claim 1, characterized in that the sheet has two or more projections of substantially triangular shape on its upper edge, which. pushing the wiper in one direction., ;;. in "which the ;; leaf. umfelsencfen ends of the Allow binding bridge for the wiper arm, "but form stops in the other direction, the, that. Pushing out the bridge from the - wiper blade "next to" prevent attachment. 3. Wiper blade according to claim 2, characterized in that .: ,,, .. indicates that the ■ '■' Wiper flanks in the ends of the bridges on, .. _r .Q / be-ren ... Ranxl _T des..Wischertblaittes projections are provided. Considered publications:
German Patent No. 835 410;
French patents No. 1 050 709, ι 039 421. 1 sheet of drawings 609 737/223 12. 56