GB2211078A - Wiper blade assembly - Google Patents
Wiper blade assembly Download PDFInfo
- Publication number
- GB2211078A GB2211078A GB8829361A GB8829361A GB2211078A GB 2211078 A GB2211078 A GB 2211078A GB 8829361 A GB8829361 A GB 8829361A GB 8829361 A GB8829361 A GB 8829361A GB 2211078 A GB2211078 A GB 2211078A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wiper blade
- strip element
- blade strip
- wiper
- windscreen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 210000000078 claw Anatomy 0.000 claims description 21
- 230000014759 maintenance of location Effects 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S1/3801—Wiper blades characterised by a blade support harness consisting of several articulated elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S2001/3827—Wiper blades characterised by the squeegee or blade rubber or wiping element
- B60S2001/3841—Squeegee modifications to prevent longitudinally sliding of squeegee in support structure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
- Transmission Devices (AREA)
- Cleaning In General (AREA)
Description
2 2 110 7 U Wiper blade for windscreen wiper installations The invention
relates to a wiper blade for windscreen wiper installations for motor vehicles, having a wiper blade strip element which is attached by its rear part to a supporting yoke arrangement, longitudinal grooves being provided in the rear part, in which grooves associated retention claws engage, and which, for securing a wiper blade element, have transverse webs as stops for the retention claws.
In a known wiper blade of this kind (German Utility Model 1,904,395), a wiper blade strip element is attached by its rear part ot a supporting yoke. The supporting yoke is designed as a multi-part supporting yoke construction which has retention claws which engage in longitudinal grooves in the rear part of the wiper blade strip element. A transverse web having a saw-toothed profile is provided at one end to secure the wiper blade strip element against undesired longitudinal displacement.
A holding claw of the supporting yoke construction engages in the transverse web. The wiper blade strip element is thus secured by the transverse web against longitudinal displacement in both directions. In the case of translation-controlled windscreen wiper installations commonly used today, the wiper blade strip element also executes a movement in the direction of its longitudinal axis. Where the known wiper blades are used, this can lead to deformations of the wiper blade strip element.
The deformations of the wiper blade strip element lead to a deterioration in the wiping quality.- German Offenlegungsschrift 3,339,414 describes a wiper blade which has a plurality of transverse webs which are distributed in its longitudinal grooves over the length of wiper blade and which are intended, by virtue of their abutment surface, to increase the possible holding force of the supporting yoke in one longitudinal direction of the wiper blade strip element. At the same time, in the case of a longitudinal displacement of the wiper blade 2 against the transverse webs, such as that which is produced by the friction of the wiper blade elements on the vehicle windscreen, this embodiment of a wiper blade likewise has the effect that the partial sections of the wiper blade strip element experiences a thrust which is blocked on one side by the transverse webs, for which reason the said partial sections warp and lift off partially from the screen.
The invention seeks to develop a wiper blade of the type stated at the outset in such a way that deformations of the wiper blade strip element are virtually eliminated.
According to the present invention there is provided a wiper blade for windscreen wiper installations for motor vehicles, having a wiper blade strip element which is attached by its rear part to a supporting yoke arrangement, longitudinal grooves being provided in the rear part, in which grooves associated retention claws engage, and which, for securing a wiper blade element, have transverse webs as stops for the retention claws, wherein only one transverse web is in each case provided in the region of the ends of the wiper blade strip element, the stop surfaces of which webs face one another and the spacing of which is somewhat greater than the spacing of the retention claws associated with the stop surfaces.
In the case of a preferred embodiment of the wiper blade according to the invention, a wiper blade strip element is provided which is attached by its rear part to a multi-part supporting yoke arrangement. On the supporting yoke arrangement there are retention claws which engage in longitudinal grooves in the rear part of the wiper blade strip element. The wiper blade strip element is fixed relative to the supporting yoke arrangement by transverse webs which are provided in the region of the ends of the wiper blade strip element. The lc transverse webs have stop surfaces, which are located opposite one another and the spacing of which is somewhat ic greater than the spacing of the associated retention 3 claws. By this embodiment of the wiper blade according to.1Che invention it is ensured that the wiper blade strip element is always pulled during the translation controlled wiping movement. Deformations having their origin in a thrust movement of the wiper blade strip element can thus no longer occur. Since the spacing of the stop surfaces is somewhat greater than the spacing of the associated retention claws, varying radii of curvature of the windscreen can be compensated. A further advantage of the wiper blade according to the invention is the symmetrical design, which facilitates the fitting of the wiper blade.
A preferred embodiment of the invention will now be described by way of example and is illustrated in the drawing in which:- Fig. 1 shows a view of a wiper blade according to the invention, Fig. 2a shows the enlargCd representation of the detail A of Fig. 1, Fig. 2b shows the section along the line II-II in Fig. 2a, Fig. 3a shows an enlarged representation of the detail B in Fig. 1 and Fig. 3b shows the section along the line III-III in Fig. 3a.
To clean the large-area, rectangular windscreen which is found today on many motor cars, so-called onearmed windscreen wipers are increasingly being used. To increase the wiping area, a translational movement is superposed on the rotary movement of the windscreen wiper. The wiper blade strip element thus exedutes a movement in the direction of its longitudinal axis.
The wiper blade, represented in Fig. 1, of the windscreen wiper installation has a wiper blade strip element 3 which is attached to a supporting yoke arrangement 8. The supporting yoke arrangement 8 is arranged on a windscreen wiper arm, which is not illustrated in the drawing. The supporting yoke arrangement 8 comprises a plurality of parts, retention 4 claws 6 being provided on the part-yokes 8',8". The retention claws 6 engage in longitudinal grooves 7 which are arranged on the rear part 3' of the wiper blade strip element 3, parallel to the wiping edge W.
Transverse webs 4,5 are provided on the ends 1,2 of the wiper blade strip element 3 for the purpose of fixing the wiper blade strip element 3 relative to the supporting yoke arrangement 8. The transverse webs 4,5 are situated within the longitudinal grooves 7 and are designed as part of the wiper blade strip element 3. The longitudinal displacement of the wiper blade strip element 3 is prevented in both directions by the retention claws 61,C, against which in each case one stop surface 4',5' of the transverse webs 4,5 rests. It is thus ensured that, during the translation movement, the wiper blade strip element 3 is only drawn under tension across the windscreen. Deformations which occur in known blades as a result of a push movement tending to compress the wiper blade strip element are thus prevented.
Figs. 2a and 3a represent enlargements of the details A and B according to Fig. 1, by means of which the design of the wiper blade in the region of the ends 1 and 2 can be described. According to Fig. 2a, the retention claw 6' rests against the stop surface 4' of the transverse web 4. The retention claw 6' thus prevents a longitudinal displacement of the wiper blade strip element 3 in one direction. Fig. 2b represents the section along the line II-II in Fig. 2a. The wiper blade strip element 3 is constructed symmetrically to its longitudinal axis. The retention claws 61 engage in longitudinal grooves 7 which are provided on both sides of the wiper blade strip element 3.
Fig. 3 represents the arrangement of the wiper blade strip element 3 in the region of end 2. In this position, in which the wiper blade strip element 3 according to Fig. 2 is fixed by the transverse web 4, a tolerance space 9 is provided between the retention claw C and the stop surface 5' of the transverse web 5. Varying radii of curvature of the windscreen can thereby by compensated. The fastening of the wiper blade strip element 3 is designed in the same manner as in the region of end 1.
If, during the translation movement, there is a reversal in the direction of the wiper blade, the stop surface 5' and the retention claw C assume the task of fixing the wiper blade strip 3.
When the wiper blade according to the invention is used in a translation controlled windscreen wiper installation, no deformations of the wiper blade strip element caused by longitudinal compression occur. Uniform wiping quality is thereby achieved in all regions of the windscreens. The avoidance of deformations of the wiper blade strip element 3 furthermore leads to an increase in the service life, since, as a result of the deformations, the wiping edge 3" in particular is subjected to increased loads. A further advantage of the wiper blade according to the invention is the symmetrical configuration. Faulty fitting into the yoke system can thereby be avoided.
6
Claims (2)
1. A wiper blade for windscreen wiper installations for motor vehicles, having a wiper blade strip element which is attached by its rear part to a supporting yoke arrangement, longitudinal grooves being provided in the rear part, in which grooves associated retention claws engage, and which, for securing a wiper blade element, have transverse webs as stops for the retention claws, wherein only one transverse web is in each case provided in the region of the ends of the wiper blade strip element, the stop surfaces of which webs face one another and the spacing of which is somewhat greater than the spacing of the retention claws associated with the stop surfaces.
2. A wiper blade for windscreen wiper installations for motor vehicles, substantially as described herein, with reference to and as illustrated in, the accompanying drawings.
Published 1989 atThePatentOffice, State House, 66171 High Holbum,Londc-, WC1R4TP. Further copies maybe obtainedfrom The Patent Ofrice. Wee Branch. St Mary Cray, Orpington, Kent BR5 3RD. Printed by Multiplex techniques ltd, St Mary Cray, Kent, Con. 1/87
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873742928 DE3742928A1 (en) | 1987-12-18 | 1987-12-18 | WIPER BLADE FOR WINDOW WIPER SYSTEMS |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8829361D0 GB8829361D0 (en) | 1989-02-01 |
| GB2211078A true GB2211078A (en) | 1989-06-28 |
| GB2211078B GB2211078B (en) | 1991-06-19 |
Family
ID=6342901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8829361A Expired - Fee Related GB2211078B (en) | 1987-12-18 | 1988-12-16 | Wiper blade for windscreen wiper installations |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH01197152A (en) |
| DE (1) | DE3742928A1 (en) |
| FR (1) | FR2624813B1 (en) |
| GB (1) | GB2211078B (en) |
| IT (1) | IT1224312B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2658141A1 (en) * | 1990-02-15 | 1991-08-16 | Peugeot | VERY FLEXIBLE WINDOW WIPER BLADE, ESPECIALLY FOR HIGHLY WINDOWS OF MOTOR VEHICLE. |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9005839U1 (en) * | 1990-05-19 | 1991-09-19 | Wolters, Hans, 3044 Neuenkirchen | Double windscreen wipers |
| JP4815327B2 (en) * | 2006-11-06 | 2011-11-16 | 株式会社ミツバ | Wiper blade |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1184660B (en) * | 1957-05-20 | 1964-12-31 | William Edward O Shei | Windshield wipers, especially for curved windshields |
| US2983945A (en) * | 1958-03-12 | 1961-05-16 | Anderson Co | Wiper blade assembly |
| DE1904395U (en) * | 1964-05-21 | 1964-11-12 | Bosch Gmbh Robert | Wiper blade for windscreen wipers, especially for motor vehicles. |
| DE1655984A1 (en) * | 1968-03-06 | 1971-09-30 | Bosch Gmbh Robert | Wiper blade for vehicle windscreens |
| DE3339414A1 (en) * | 1983-10-29 | 1985-05-09 | SWF Auto-Electric GmbH, 7120 Bietigheim-Bissingen | Wiper blade for vehicle windows |
-
1987
- 1987-12-18 DE DE19873742928 patent/DE3742928A1/en active Granted
-
1988
- 1988-12-06 JP JP63307086A patent/JPH01197152A/en active Granted
- 1988-12-16 FR FR888816635A patent/FR2624813B1/en not_active Expired - Fee Related
- 1988-12-16 GB GB8829361A patent/GB2211078B/en not_active Expired - Fee Related
- 1988-12-16 IT IT48676/88A patent/IT1224312B/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2658141A1 (en) * | 1990-02-15 | 1991-08-16 | Peugeot | VERY FLEXIBLE WINDOW WIPER BLADE, ESPECIALLY FOR HIGHLY WINDOWS OF MOTOR VEHICLE. |
| EP0442234A1 (en) * | 1990-02-15 | 1991-08-21 | Automobiles Peugeot | Window wiper blade with great flexibility, in particular for extremely curved windows of an automobile vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0479862B2 (en) | 1992-12-17 |
| FR2624813B1 (en) | 1990-10-26 |
| IT8848676A0 (en) | 1988-12-16 |
| JPH01197152A (en) | 1989-08-08 |
| DE3742928C2 (en) | 1989-10-05 |
| GB2211078B (en) | 1991-06-19 |
| FR2624813A1 (en) | 1989-06-23 |
| IT1224312B (en) | 1990-10-04 |
| DE3742928A1 (en) | 1989-07-06 |
| GB8829361D0 (en) | 1989-02-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19941216 |