FR2822119A3 - Connector for windscreen wiper blade holder and arm comprises bridge with two side-pieces, fastening slot, flexible and structural tongues - Google Patents

Abstract

The connector (2) consists of a bridge with two side-pieces (22) located on either side of a cross-member (21), having a fastening slot (23), an inner flexible tongue and a fixed structural tongue (25) with a locating hole (251). The structural tongue is located above the flexible tongue, defining a cavity to receive the flat end of a wiper arm with a projection to engage with the locating hole. The connector also has an inner projecting block and chicane tongue (221) on the inner surface of each side piece at one end to receive a wiper arm with a hooked end.

Description

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WIPER BLADE CONNECTION AND ASSEMBLY
WIPER
The present invention relates to a wiper blade connector, and more particularly to a connector which connects the end of the oscillating bar of the wiper blade drive element to the support of the squeegee. wiper, as well as a wiper assembly having such a connector. The connector has great flexibility of adaptation to the shapes of the oscillating bars to which it connects. The oscillating bar may have a flat or curved hook end, with a stud or capable of receiving a stud.

 When driving on rainy days, if the windshield wipers did not scrape the raindrops off the windshield, drivers could not make out anything.

balai d'essuie-glace c par l'intermédiaire d'un raccord b , de sorte que le support du balai d'essuie-glace peut osciller en un mouvement de va-etvient pour racler les gouttes de pluie sur le pare-brise. Le support du balai d'essuie-glace présente un axe de connexion c1 et une fente de fixation b1 est aménagée dans le raccord, de sorte que le raccord peut être fixé dans le support de balai d'essuie-glace par l'intermédiaire de la fente de fixation se fixant sur l'axe de connexion. Une fente d'insertion b2 est également aménagée dans une extrémité du raccord b , avec une languette élastique b3 disposée sous la fente b2 et une cavité de positionnement b4 disposée au dessus de la fente b2 . L'extrémité de la barre oscillante est plate et comporte une protubérance au moyen de

laquelle la barre oscillante peut être insérée dans la fente d'insertion b2 du raccord b3 . La protubérance a est poussée vers le haut dans la cavité de positionnement b4 au-dessus de la fente d'insertion b2 par la languette élastique b3 . De cette façon, le raccord est fixé dans l'extrémité de la barre oscillante. La barre oscillante est ainsi reliée au support de balai d'essuie-glace par l'intermédiaire du raccord b . Figures 9 and 10 show a conventional way of the prior art to drive a wiper blade. The end of a swinging bar a, moved by a drive structure, is fixed in a support

wiper blade c by means of a connection b, so that the wiper blade support can oscillate back and forth to scrape the raindrops from the windshield. The wiper blade holder has a connection pin c1 and a fixing slot b1 is provided in the fitting, so that the fitting can be fixed in the wiper blade holder by means of the fixing slot fixing on the connection axis. An insertion slot b2 is also provided in one end of the connector b, with an elastic tongue b3 disposed under the slot b2 and a positioning cavity b4 disposed above the slot b2. The end of the oscillating bar is flat and has a protuberance by means of

which the oscillating bar can be inserted into the insertion slot b2 of the fitting b3. The protrusion a is pushed upwards in the positioning cavity b4 above the insertion slot b2 by the elastic tongue b3. In this way, the fitting is fixed in the end of the swinging bar. The oscillating bar is thus connected to the wiper blade support by means of connection b.

 As also shown in Figures 11 and 12 showing another embodiment of the prior art, a pliers in

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forme de U d est aménagée dans le raccord et une fente de fixation est également prévue dans la zone de courbure de la pince en forme de U d . La pince peut être fixée dans l'axe de connexion cd du support c par l'intermédiaire de la fente de fixation d . L'extrémité de la barre oscillante a forme un crochet a2 , et ladite barre a est fixée à la pince en forme de U d par ledit crochet a2 , de manière à relier la barre a au support de l'essuie-glace c .

U-shaped is arranged in the fitting and a fixing slot is also provided in the area of curvature of the U-shaped clamp. The clamp can be fixed in the connection axis cd of the support c through the fixing slot d. The end of the oscillating bar has a hook a2, and said bar a is fixed to the U-shaped clamp d by said hook a2, so as to connect the bar a to the support of the wiper c.

 As shown in Figures 13 and 14 showing another alternative embodiment of the prior art, the connector b is a U-shaped connector e having two fixing slots e1 and e2, and a stud f passes through the brush holder c wiper through holes c2. A fixing slot c2 of the connector is fixed on the stud while the other slot e1 of fixing the connector c is fixed in a connection axis c1 of the support c of the wiper blade. Thus, the U-shaped connection e can be fixed in the support c of the wiper blade and the external part of the stud f can be fixed in a fixing hole a3 arranged at the end of the oscillating bar a. Thus, the swinging bar can be fixed to the wiper blade holder via the U-shaped fitting.

Swing bars of the prior art have different ends depending on the type of vehicle. When the wiper blade is worn and needs to be changed, different fittings, such as the fitting in Figures 9 and 10, the U-shaped clamp in Figures 11 and 12 or the U-shaped fitting in Figures 13 and 14 , must be chosen to fit the swing bar to be fixed to the wiper blade holder. So many manufacturers have to make different types of fittings. This is a drawback for production and the production cost is high. Service personnel also experience significant discomfort in finding the correct fitting when necessary.

An objective of the present invention is to provide a connector which has great flexibility of adaptation to the shapes of the oscillating bars to which it is connected. The oscillating bar can have a flat or curved hook end, or it can receive a stud.

 Considering the drawbacks mentioned above, the device of the present invention is designed so that the end of the oscillating bar of the wiper blade drive element of

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 vehicle can be fixed in the wiper blade holder via a fitting.

 For this, the invention provides a connector for a wiper blade oscillating bar, one end of said oscillating bar being able to be fixed to a wiper blade holder by means of said connector, comprising: - two lateral faces arranged on each side of an arcuate transverse part; - a fixing slot arranged under the transverse part for fixing the connection to the wiper blade support; - an elastic tongue arranged on one side of the transverse part and between the two lateral faces; - a structural tongue comprising a positioning hole and disposed between the two lateral faces and above the elastic tongue, so as to form a cavity between the elastic tongue and the structural tongue to receive an oscillating bar with a flat end comprising a fixing protrusion capable of cooperating with said positioning hole; - a projecting block erected towards the inside of the connector from each side face of the arched transverse part and a baffle tab arranged in the front interior side of each side face, the space between the two projecting blocks and the arcuate transverse part forming an internal fixing slot and the space outside the projecting blocks forming an external fixing slot for receiving a hook-shaped oscillating bar; and - an arc insertion slot disposed under the arcuate transverse part to receive a stud for fixing the swinging bar, the connector and the wiper support.

 Thanks to the structure mentioned above, the connector of the present invention adapts to different types of bars to be fixed in the wiper blade support, and it therefore has great flexibility of use.

 The invention also relates to a wiper assembly comprising such a connection, an oscillating bar and a wiper support.

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montée dans le raccord de l'invention, - la figure 4 est une vue en coupe d'une barre oscillante à extrémité en crochet montée sur une partie extérieure du raccord de l'invention, - la figure 5 est une vue variante du montage de la figure 4, - la figure 6 est une vue de dessus de la barre oscillante des figures 4 et 5 -la figure 7 est une vue en coupe d'une barre oscillante

montée à l'aide d'un goujon sur le raccord de l'invention, - la figure 8 est une vue en perspective éclatée représentant la barre oscillante et le raccord de la figure 7, ainsi que le support de balai d'essui-glace, -la figure 9 est une vue en perspective éclatée d'un mode de réalisation de l'art antérieur déjà étudié, - la figure 10 est une vue en coupe de la figure 9, - la figure 11 est une vue en perspective éclatée d'un autre mode de réalisation de l'art antérieur déjà étudié et comprenant une barre oscillante à extrémité en forme de crochet, - la figure 12 est une vue en coupe de la figure 11, - la figure 13 est une vue en perspective éclatée d'un autre mode de réalisation de l'art antérieur comprenant une barre oscillante montée à l'aide d'un goujon sur un raccord classique, et - la figure 14 est une vue en coupe de la figure 13. Other characteristics, details and advantages of the invention will emerge on reading the description which follows, given by way of example with reference to the appended drawings in which: - Figure 1 is an exploded perspective view showing a conforming connection to the invention as well as a wiper blade support, - Figure 2 is a sectional view of the connector of Figure 1, - Figure 3 is a sectional view of a flat oscillating bar

mounted in the connector of the invention, - Figure 4 is a sectional view of a swivel bar with hook end mounted on an outer part of the connector of the invention, - Figure 5 is a variant view of the mounting of Figure 4, - Figure 6 is a top view of the swing bar of Figures 4 and 5 - Figure 7 is a sectional view of a swing bar

mounted using a stud on the connector of the invention, - Figure 8 is an exploded perspective view showing the oscillating bar and the connector of Figure 7, as well as the wiper blade support , - Figure 9 is an exploded perspective view of an embodiment of the prior art already studied, - Figure 10 is a sectional view of Figure 9, - Figure 11 is an exploded perspective view of 'another embodiment of the prior art already studied and comprising an oscillating bar with hook-shaped end, - Figure 12 is a sectional view of Figure 11, - Figure 13 is an exploded perspective view of another embodiment of the prior art comprising an oscillating bar mounted by means of a stud on a conventional connector, and - FIG. 14 is a sectional view of FIG. 13.

 We first refer to Figures 1 and 2. A conventional wiper blade holder 3 is shown. It has a transverse connection axis 31 for fixing a connector 2 according to the invention, as well as two opposite coaxial holes 32.

 The connector 2 has a side face 22 arranged on each side of an arcuate transverse part 21 and a fixing slot 23

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 fitted under the transverse part 21. The connector 2 can be fixed in the connection axis 31 of the support 3 by means of said fixing slot 23. An elastic tongue 24 is disposed between the two lateral faces 22, and has a structural tongue 25 is also arranged between the two lateral faces 22, above the elastic tongue 24. A positioning hole 251 is provided through the structural tongue 25.

entre les deux blocs en saillie 27 et la partie transversale en arc 21 forme une fente de fixation intérieure 28a et l'espace entre les deux blocs en saillie 27 et le bord extérieur des faces latérales 22 forme une fente extérieure 28b. The space between the elastic tongue 24 and the structural tongue 25 forms an insertion cavity 26. In addition, an arc insertion slot 29 is arranged below the arc transverse part 21 of the connector, parallel to the fixing slot 23. A projecting block 27 rises towards the inside of the fitting from each of the two lateral faces 22 and a baffle tab 221 is arranged on the inner face of the front part of each lateral face 22, close of each projecting block 27. Space

between the two projecting blocks 27 and the arcuate transverse part 21 forms an internal fixing slot 28a and the space between the two projecting blocks 27 and the outer edge of the lateral faces 22 forms an external slot 28b.

fixée dans le raccord 2, comme le montre la figure 3. Par ailleurs, le raccord 2 est fixé au support 3 de balai d'essui-glace par l'intermédiaire de la fente de fixation 23 du raccord 2 qui coopère avec l'axe transversal de connexion 31 du support 3 de telle sorte que la barre oscillante 1, le raccord 2 et le support 3 balai d'essui-glace forment un ensemble après montage. As can be seen in Figure 3, an oscillating bar 1, provided with a protrusion 11 on a flat end 1a, is inserted into the insertion cavity 26. The protrusion 11 of the flat end 1 has the oscillating bar 1 is positioned in the positioning hole 251 of the structural tongue 25. In this way, the flat end 1a of the oscillating bar is

fixed in the connector 2, as shown in FIG. 3. Furthermore, the connector 2 is fixed to the support 3 of the wiper blade by means of the fixing slot 23 of the connector 2 which cooperates with the axis transverse connection 31 of the support 3 so that the oscillating bar 1, the connector 2 and the support 3 wiper blade form an assembly after assembly.

transversale en arc 21 du raccord 2. L'extrémité 1b en forme de crochet 12 de la barre oscillante 1 peut être fixée dans la fente intérieure 28a ou la fente extérieure 28b du raccord, comme le montrent les figures 4 et 5. La languette à chicane 221 est disposée, après montage, contre l'extérieur de l'extrémité en forme de crochet 12, comme le montre la figure 6. Bien entendu, le raccord 2 est fixé au support 3 de balai d'essui-glace par l'intermédiaire de la fente de

fixation 23 du raccord 2 qui coopère avec l'axe transversal de connexion 31 du support 3 de telle sorte que la barre oscillante 1, le raccord 2 et le support In FIGS. 4,5 and 6, the oscillating bar 1 has an end 1b in the form of a hook 12 which is mounted around the part

transverse in arc 21 of the connector 2. The hook-shaped end 1b 12 of the oscillating bar 1 can be fixed in the internal slot 28a or the external slot 28b of the connector, as shown in FIGS. 4 and 5. The tongue at baffle 221 is arranged, after assembly, against the outside of the hook-shaped end 12, as shown in FIG. 6. Of course, the connector 2 is fixed to the support 3 of the wiper blade by the middle of the slot

attachment 23 of the connector 2 which cooperates with the transverse connection axis 31 of the support 3 so that the oscillating bar 1, the connector 2 and the support

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 3 wiper blades form a set after assembly.

d'essui-glace forment un ensemble après montage. As shown in FIG. 7, a stud 4 is mounted in a fixing orifice 13 of the end 1c of the swivel bar 1. This stud, once the swivel bar / fitting / wiper blade assembly is complete mounted, passes through the orifices 32 of the support 3 for the wiper blade and is mounted in the arc insertion slot 29 of the connector 2. In this embodiment, the end 1c of the oscillating bar 1 is partly mounted on either side of the connector 2. Of course, the connector 2 is also fixed to the support 3 of the wiper blade by means of the fixing slot 23 of the connector 2 which cooperates with the transverse axis of connection 31 of support 3 so that the oscillating bar 1, connection 2 and support 3 brush

wipers form a set after assembly.

A stud 4 can also be directly fixed in the end 1d of the oscillating bar 1, as seen in FIG. 8.

Thanks to the structure thus described of the connector 2, the latter having a cavity 26, a positioning hole 251 passing through a structural tongue 25, an internal fixing slot 28a and an external fixing slot 28b, as well as a insertion in arc 29, it can be adapted to a flat oscillating bar, an oscillating bar having a hooked end or even an oscillating bar having a stud positioned in a fixing hole 13.

 Therefore, this type of connector can be used to connect swing bars of different types, so that it has great flexibility of use.

 For manufacturers, the invention can help reduce inventory and production costs, so that it improves market competitiveness. On the other hand, it is very convenient that maintenance personnel have only one type of fitting suitable for many different swing bars.

 It should be understood, however, that these examples are given solely by way of illustration of the subject of the invention of which they do not in any way constitute an imitation.

Claims (3)

 1. Connection (2) for swing bar (1) of wiper blade, one end (1a; 1b; 1c; 1d) of said swing bar (1) can be fixed to a support (3) of wiper blade -glass through said connector (2), characterized in that it comprises: - two lateral faces (22) arranged on each side of an arcuate transverse part (21); - A fixing slot (23) arranged under the transverse part for fixing the connector (2) to the support (3) of the wiper blade; - an elastic tongue (24) disposed on one side of the transverse part (21) and between the two lateral faces (22); - a structural tongue (25) comprising a positioning hole (251) and disposed between the two lateral faces (22) and above the elastic tongue (24) so as to form a cavity (26) between the elastic tongue (24) and the structural tongue (25) for receiving an oscillating bar (1) with a flat end (1a) comprising a protuberance (11) for fixing capable of cooperating with said positioning hole (251); - a projecting block (27) erected towards the inside of the connector from each lateral face (22) of the arcuate transverse part (21) and a

 baffle tab (221) disposed in the front interior side of each side face (22), the space between the two projecting blocks (27) and the arched transverse part (21) forming an interior fixing slot (28a) and the space outside the protruding blocks (27) forming an external fixing slot (28b) for receiving a swinging bar with hook-shaped end (12); and - an arc insertion slot (29) disposed under the arcuate transverse part (21) to receive a stud (4) for fixing the oscillating bar, the connector and the wiper support.  2. A wiper assembly comprising an oscillating bar (1), a support (3) for a wiper and a connector (2) according to claim 1.  3. A wiper assembly according to claim 2, characterized in that: - the stud (4) is directly fixed to the end (1d) of the oscillating bar (1) and passes through holes (32) arranged in the support (3) <Desc / Clms Page number 8>  wiper, and - the arc insertion slot (29) of the fitting (2) is fixed on the stud (14), the oscillating bar (1) provided with the stud (14) can thus be fixed in the fitting (2) and on the wiper support.