FR2486477A1 - Low friction coupling for windscreen wiper blade - has plastic moulded insert between wiper arm and blade pivot - Google Patents
Low friction coupling for windscreen wiper blade - has plastic moulded insert between wiper arm and blade pivot Download PDFInfo
- Publication number
- FR2486477A1 FR2486477A1 FR8109870A FR8109870A FR2486477A1 FR 2486477 A1 FR2486477 A1 FR 2486477A1 FR 8109870 A FR8109870 A FR 8109870A FR 8109870 A FR8109870 A FR 8109870A FR 2486477 A1 FR2486477 A1 FR 2486477A1
- Authority
- FR
- France
- Prior art keywords
- wiper arm
- wiping
- wiper
- wiping device
- blade
- 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.)
- Pending
Links
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
- B60S1/40—Connections between blades and arms
- B60S1/4006—Connections between blades and arms for arms provided with a hook-shaped end
- B60S1/4009—Connections between blades and arms for arms provided with a hook-shaped end comprising a detachable intermediate element mounted on the hook-shaped end
- B60S1/4016—Connections between blades and arms for arms provided with a hook-shaped end comprising a detachable intermediate element mounted on the hook-shaped end the element being provided with retention means co-operating with the hook-shaped end of the arm
- B60S1/4019—Connections between blades and arms for arms provided with a hook-shaped end comprising a detachable intermediate element mounted on the hook-shaped end the element being provided with retention means co-operating with the hook-shaped end of the arm the retention means being protrusions or holes
-
- 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
- B60S1/40—Connections between blades and arms
- B60S1/4006—Connections between blades and arms for arms provided with a hook-shaped end
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
- Transmission Devices (AREA)
Abstract
Description
Etat de la technique
L'invention concerne un dispositif d'essuyage pour glaces de véhicules automobiles. On connaît déjà un dispositif d'essuyage dans lequel l'élément de liaison constitué par un ressort à brallches comporte des parois recouvrant les surfaces du bras d'essuie-glace tournées vers la direction d'essuyage. Pour des raisons techniques de fabrication, les tolérances sont alors déterminées de façon telle que le bras d'essuie-glace est toujours placé avec un certain jeu entre ces parois. Il s'est avéré depuis que ce jeu latéral nuit à la qualité de l'essuyage.State of the art
The invention relates to a wiper device for motor vehicle windows. A wiping device is already known in which the connecting element constituted by a spring with pins has walls covering the surfaces of the wiper arm facing the wiping direction. For technical manufacturing reasons, the tolerances are then determined in such a way that the wiper arm is always placed with a certain clearance between these walls. It has since been shown that this lateral play affects the quality of the wiping.
Avantages de l'invention
Le dispositif d'essuyage conforme à l'invention présente par contre l'avantage que, grâce à des moyens élastiques ce jeu latéral est compensé, ce qui a une influence avorable sur la qualité de l'essuyage. Il y a lieu de considérer comme un autre avantage que les tolérances de fabrication peuvent etre augmentées, car les moyens élastiques permettent de compenser des dépassements.Advantages of the invention
The wiping device according to the invention on the other hand has the advantage that, thanks to elastic means, this lateral play is compensated, which has an avorable influence on the quality of the wiping. It should be considered as another advantage that the manufacturing tolerances can be increased, because the elastic means make it possible to compensate for overshoots.
Grâce à d'autres caractéristiques de l'invention d'autres formes avantageuses et des améliorations du dispositif d'essuyage peuvent être envisagées. Thanks to other characteristics of the invention, other advantageous forms and improvements to the wiping device can be envisaged.
Dessins
Un exemple de réalisation de l'invention est représenté sur les dessins et expliqué plus en détail dans la description qui va suivre.Drawings
An exemplary embodiment of the invention is shown in the drawings and explained in more detail in the description which follows.
- la figure 1 est une coupe longitudinale partielle d'une partie du support de lame d'essuyage du dispositif d'essuyage conforme à l'invention le long de la ligne I-I de la figure 2 et
- la figure 2 est une vue de dessus du support de lame d'essuyage selon la figure 1.FIG. 1 is a partial longitudinal section of a part of the wiper blade support of the wiping device according to the invention along line II of FIG. 2 and
- Figure 2 is a top view of the wiper blade support according to Figure 1.
Description de l'exemple de réalisation
Le dispositif d'essuyage représenté partiellement sur les figures 1 et 2 comporte un bras d'essuie-glace 10 indiqué en traits-points, sur l'extrémité libre duquel est fixée par articulation, une partie 12 d'un support de lame d'essuyage associée à une lame d'essuyage. Le bras d'essuie-glace 10 est en forme de crochet à son extrémité libre. Cela signifie que le bras d'essuie-glace 10 se prolonge par l'intermédiaire d'une courbure 14 en une branche 16 s'étendant de façon essentielle ment parallèle à une partie, constituant une seconde branche 18, du bras d'essuie-glace 10.La partie 12 du support de lame d'es- suyage comporte deux joues 20 et 22 placées à une certaine dis- tance l'une de l'autre et parallèlement l'une à l'autre, et sur lesquelles sont fixées les extrémités d1un axe d'articula- tion 24. Sur cet axe d'articulation 24 est articulé un ressort d'enclenchement 26.Ce ressort d'enclenchement 26 constitue un élément de liaison pour raccorder le crochet 16, 14, 18 du bras d'essuie-glace, Si bien que la lame d'essuyage est reliée par articulation avec le bras d'essuie-glace 10. Le ressort d'enolen- chement 26 comporte une section transversale essentiellement en forme d'épingle à cheveux (figure 1) il comporte ainsi, tout comme l'extrémité libre du bras d'essuie-glace, deux branches clastiques 282 30, s'étendant de façon essentiellement para le l'une à l'autre et qui sont reliées entre elles par un moyeu 32.Description of the exemplary embodiment
The wiping device partially shown in FIGS. 1 and 2 comprises a wiper arm 10 indicated by dotted lines, on the free end of which is fixed by articulation, a part 12 of a blade support wiping associated with a wiping blade. The wiper arm 10 is hook-shaped at its free end. This means that the wiper arm 10 is extended by means of a curvature 14 into a branch 16 extending essentially parallel to a part, constituting a second branch 18, of the wiper arm. glass 10. The part 12 of the wiper blade support has two cheeks 20 and 22 placed at a certain distance from one another and parallel to each other, and on which are fixed the ends of an articulation axis 24. On this articulation axis 24 is articulated an engagement spring 26.This engagement spring 26 constitutes a connecting element for connecting the hook 16, 14, 18 of the arm d 'wiper, So that the wiper blade is connected by articulation with the wiper arm 10. The winding spring 26 has a cross section essentially in the form of a hairpin (Figure 1 ) it thus comprises, like the free end of the wiper arm, two clastic branches 282 30, extending so one essentially para one to the other and which are connected together by a hub 32.
La paroi de ce moyeu a été enlevée dans une zone partielle 34.The wall of this hub has been removed in a partial area 34.
Comme le ressort d'enclenchement 26 est fabriqué en un matériau élastique, de préférence une matière plastique, le moyeu 32 du ressort élastique 26 peut entre enclenché sur l'axe d'articule tion 24 de façon imperdable. Comme on peut le voir en outre sur la figure 1, les faces opposées l'une à l'autre 36p 38 des branches élastiques 28, 30, coopèrent avec les faces en regard l'une de l'autre 40 et 42, des branches 16 et 18 du bras d'essuie- glace, lorsque la lame d'essuyage est raccordée au bras d'essuie glace 10.Les branches élastiques 28, 30 sont alors précontrain- tes. Sur les branches élastiques 28 et 30 du ressort d'enclen- chement 26, et sur la paroi du moyeu, sont rapportées, à une certaine distance l'une de l'autre, des parois latérales 44 et 46. Comme le montre la figure 2, ces parois latérales 44 et 46 servent de parois intermédiaires empêchant un contact des joues 20, 22 et des faces 50 tournées vers la direction d'essuyage (flèche double 48) du bras d'essaie glace 10. As the interlocking spring 26 is made of an elastic material, preferably a plastic material, the hub 32 of the elastic spring 26 can be engaged on the articulation axis 24 in a captive manner. As can also be seen in FIG. 1, the faces opposite one another 36p 38 of the elastic branches 28, 30, cooperate with the opposite faces of one another 40 and 42, branches 16 and 18 of the wiper arm, when the wiper blade is connected to the wiper arm 10. The elastic branches 28, 30 are then prestressed. On the elastic arms 28 and 30 of the engagement spring 26, and on the wall of the hub, side walls 44 and 46 are attached, at a certain distance from one another. As shown in the figure 2, these side walls 44 and 46 serve as intermediate walls preventing contact of the cheeks 20, 22 and the faces 50 facing the wiping direction (double arrow 48) of the ice-testing arm 10.
Pour des raisons techniques de fabrication, la cote 52 entre les faces latérales tournées l'une vers l'autre des parois latérales 44 et 46, est toujours plus grande que la largeur 54 du bras d'essuie-glace 10. si bien que le bras d'essuie-glace 10 ou bien le crochet de raccordement 16, 14, 18 du bras d'essuie-glace 10, est placé avec un certain jeu latéral entre les parois latérales 44 du ressort d'enclenchement 260
Pour supprimer ce jeu latéral, sont disposées sur les faces tournées l'une vers l'autre des parois latérales 44 et 462 des saillies 56 venues d'une seule pièce avec ces parois et qui s'étendent respectivement vers l'autre paroi latérale 46 , 44.Ces saillies 56 peuvent par exemple, comme cela est représenté , être disposées sur les parois latérales de la branche élastique 28 et/ou sur les parois latérales de la branche élastique 300 Ces saillies 56 sont de préférence venues d'une seule pièce avec les parois latérales 44 et 46. Elles sont donc, tout comme l'ensemble du ressort d'enclenchement 26, constituées d'un matériau élastique. Les hauteurs des saillies 56 sont déterminées de façon telle que la distance 58 d'une saillie de l'une des parois latérales à une saillie de l'autre paroi latérale, est toujours plus petite que la largeur 54 du bras d'essuieglace 10. Ces saillies 56 constituent des moyens élastiques pour compenser le jeu entre le bras d'esmaie-glace 10 et les parois latérales 44, 46 du ressort d'enclenchement 26.For technical manufacturing reasons, the dimension 52 between the side faces facing one another of the side walls 44 and 46 is always greater than the width 54 of the wiper arm 10. so that the wiper arm 10 or else the connection hook 16, 14, 18 of the wiper arm 10, is placed with a certain lateral clearance between the side walls 44 of the engagement spring 260
To remove this lateral play, are arranged on the faces facing one another the side walls 44 and 462 of the projections 56 come in one piece with these walls and which extend respectively to the other side wall 46 , 44. These projections 56 can for example, as shown, be arranged on the side walls of the elastic branch 28 and / or on the side walls of the elastic branch 300 These projections 56 preferably came in one piece with the side walls 44 and 46. They are therefore, like the whole of the interlocking spring 26, made of an elastic material. The heights of the projections 56 are determined so that the distance 58 from a projection of one of the side walls to a projection of the other side wall is always smaller than the width 54 of the wiper arm 10. These protrusions 56 constitute elastic means for compensating for the play between the screen arm 10 and the side walls 44, 46 of the engagement spring 26.
Les moyens élastiques peuvent par exemple, dans le cas d'un ressort d'enclenchement en métal, entre constitués par des pattes ou des bossages emboutis et/ou découpés vers l'intérieur. The elastic means may for example, in the case of a metal engagement spring, between constituted by legs or bosses stamped and / or cut inward.
L'idée de base de l'invention est d'équiper le dispositif d'essuyage pour glaces de véhicules automobiles, avec des moyens élastiques qui suppriment le jeu latéral du crochet de bras d'essuie-glace entre les parois latérales du ressort d'enclenchement. The basic idea of the invention is to equip the wiper device for motor vehicle windows, with elastic means which eliminate the lateral play of the wiper arm hook between the side walls of the spring. engagement.
Claims (7)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803025734 DE3025734A1 (en) | 1980-07-08 | 1980-07-08 | WIPING DEVICE FOR WINDOWS OF MOTOR VEHICLES |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2486477A1 true FR2486477A1 (en) | 1982-01-15 |
Family
ID=6106613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8109870A Pending FR2486477A1 (en) | 1980-07-08 | 1981-05-18 | Low friction coupling for windscreen wiper blade - has plastic moulded insert between wiper arm and blade pivot |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3025734A1 (en) |
FR (1) | FR2486477A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0356079A2 (en) * | 1988-08-22 | 1990-02-28 | Nippon Wiperblade Co., Ltd. | Connecting member in windshield wiper |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3222761A1 (en) * | 1982-06-18 | 1983-12-22 | SWF-Spezialfabrik für Autozubehör Gustav Rau GmbH, 7120 Bietigheim-Bissingen | Connecting piece for a wiper arm and a wiper blade of windscreen wiper systems in vehicles, in particular motor vehicles |
FR2639300B1 (en) * | 1988-11-22 | 1991-07-19 | Journee Paul Sa | WINDSCREEN WIPER BLADE |
DE19941499B4 (en) | 1999-08-31 | 2018-08-16 | Robert Bosch Gmbh | Connector for connecting a wiper blade to a wiper arm |
US6640380B2 (en) * | 2001-10-05 | 2003-11-04 | Pylon Manufacturing Corporation | Wiper blade connector |
FR3049247B1 (en) | 2016-03-25 | 2018-04-06 | Valeo Systemes D'essuyage | ADAPTER FOR CONNECTING THE FREE END OF A WIPER ARM, AND ASSEMBLY COMPRISING AN ADAPTER AND A WIPER ARM |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1572772A (en) * | 1968-07-02 | 1969-06-27 | ||
US4120069A (en) * | 1977-04-20 | 1978-10-17 | Parker-Hannifin Corporation | Adapter for coupling windshield wiper blade holder with hooked wiper arm |
DE2829437A1 (en) * | 1978-07-05 | 1980-01-24 | Rau Swf Autozubehoer | Rattle free clip for windscreen wiper for heavy vehicles - has sprung cheeks with profiled edges which increase grip effect |
-
1980
- 1980-07-08 DE DE19803025734 patent/DE3025734A1/en not_active Withdrawn
-
1981
- 1981-05-18 FR FR8109870A patent/FR2486477A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1572772A (en) * | 1968-07-02 | 1969-06-27 | ||
US4120069A (en) * | 1977-04-20 | 1978-10-17 | Parker-Hannifin Corporation | Adapter for coupling windshield wiper blade holder with hooked wiper arm |
DE2829437A1 (en) * | 1978-07-05 | 1980-01-24 | Rau Swf Autozubehoer | Rattle free clip for windscreen wiper for heavy vehicles - has sprung cheeks with profiled edges which increase grip effect |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0356079A2 (en) * | 1988-08-22 | 1990-02-28 | Nippon Wiperblade Co., Ltd. | Connecting member in windshield wiper |
EP0356079A3 (en) * | 1988-08-22 | 1990-08-29 | Nippon Wiperblade Co., Ltd. | Connecting member in windshield wiper |
Also Published As
Publication number | Publication date |
---|---|
DE3025734A1 (en) | 1982-02-04 |
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