FR3024109A1 - WIPER DEVICE - Google Patents

Abstract

Wiper device (40) having a fixing member, having a mounting unit (41) on a fastener having a first engaging member (42), and a wiper blade (2), a wiper blade side attachment (43) having a second engagement member (44). The first engagement member (42) and the second engagement member (44) are engaged relative to one another by a movement substantially perpendicular to the longitudinal extension direction (8).

Description

FIELD OF THE INVENTION The present invention relates to a vehicle wiper device, in particular a motor vehicle, and to a method of mounting such a wiper device on a fastener element. of a vehicle. State of the art Typically, wiper devices have a wiper arm or lever carrying a wiper blade with a wiper lip to move on a window / cover. breeze from a vehicle. The wiper arm is driven alternately between a first movement reversal position and a second movement reversing position. For this, the arm is connected to a wiper motor via a drive shaft. To improve the wiper devices, it is necessary to take into account a large number of marginal conditions among which the manufacturing costs, the material costs but also the properties of the wiper device, in particular its operation under various conditions. conditions as well as reliability under such conditions. Moreover, in vehicle windshield wipers, account must be taken of the increasing pressure on costs and the fact that vehicles are used under a variety of climatic conditions and in particular because they are exposed to extreme temperatures, permanently or prolonged or at high temperature variations.

In these conditions, it is desirable to improve the wiper devices, in particular to take account of the cost. OBJECT OF THE INVENTION The object of the present invention is to develop a windscreen wiper device which makes it possible to reduce or remedy one or more of the above disadvantages. DESCRIPTION AND ADVANTAGES OF THE INVENTION For this purpose, the subject of the invention is a windscreen wiper device of a vehicle comprising a fastening element, having: a mounting unit for mounting on a fastening element, mounting unit having a first engaging member, and a wiper blade having: an elongate at least partially flexible upper portion, an at least partially flexible elongated bottom portion, a plurality of connecting members for connecting the upper portion 5 and the lower part, these connecting elements being spaced apart in the direction of longitudinal extension of the wiper blade and the connecting elements allowing relative movement of the upper part and the lower part, one by relative to the other, with a movement component in the direction of longitudinal extension of the ice-wiper blade, the connecting elements having substantially a thickness of 0.4 mm or less, and a wiper blade side attachment having a second engaging member, the first engaging member and the second engaging member being engaged with respect to the other by a movement essentially perpendicular to the direction of longitudinal extension. In other words, the subject of the invention is a vehicle windscreen wiper device comprising a fastening element. The windscreen wiper device includes a mounting unit for mounting on a fastener. The mounting unit includes a first engagement member. The windscreen wiper device comprises a windscreen wiper blade formed of an elongated at least partially flexible upper part and an elongated lower part which is also partially flexible, these two parts being connected by a plurality of distributed connecting elements. in the direction of longitudinal extension of the wiper blade being spaced from each other. Connecting members permit movement of the upper and lower portions relative to one another with a movement component in the longitudinal extension direction of the wiper blade. The windscreen wiper blade has a wiper blade side attachment member with a second engaging member, the first engaging member and the second engaging member engaging each other by a movement substantially perpendicular to the direction of longitudinal extension.

According to another development, the subject of the invention is a method of mounting a windscreen wiper device. The method involves using a windshield wiper device as described above. The method also includes introducing the first engaging member 5 and the second engaging member into each other by movement in a direction substantially perpendicular to the direction of longitudinal extension of the wiper blade. Thus, the wiper device according to the invention in its described forms and the method of mounting such an wiper device result in a wiper device which mounts and dismounts. simply and is economical in both manufacturing and maintenance. The wiper blade of the windshield wiper device, which is preferably of the Fyn-Ray type, is mounted by a single movement (a click) on the mounting unit. The same is true of dismantling. Thus particularly in the case of damage or if the wiper blade is worn, it is easy to replace it. It can also be removed for passage in a washing tunnel and then back up just as easily. The wiper device can thus be manufactured simply and economically.

According to one of the developments of the invention, the wiper device comprises a mounting unit intended to be mounted on a fastening element of the vehicle; the mounting unit comprises a first engagement member. The windscreen wiper device comprises a windscreen wiper blade with a windscreen wiper blade attachment piece and the attachment piece has a second catch element; the first engagement member and the second engagement member are connected to each other by a steering movement substantially perpendicular to the direction of longitudinal extension. Thus, by one movement, the wiper blade can be attached to the mounting unit. The ice-soap device is simple and economical. According to characteristic developments, the first engagement member and the second engagement member formally and / or forcefully bond. The wiper blade and the mounting unit can be connected to each other as easily as possible, and so can the opening of the connection. For example, in some embodiments, the mounting unit may comprise an actuating device for effecting the connection by force and / or form and / or releasing it. According to the embodiments of the invention, the first grip member and the second grip member correspond with a dovetail shape. This allows a connection to be made very simply by the shape which blocks the movement of the wiper blade in its direction of longitudinal extension or which maintains a relative position with respect to the mounting unit.

According to the typical embodiments, the mounting unit includes a mounting member and the second engaging member of the wiper blade attachment piece, after insertion, is located between the first engaging member and the mounting element. For example, by a movement of the first engagement member relative to the mounting member in a direction which is substantially perpendicular to the direction of longitudinal extension of the wiper blade and which is substantially perpendicular to the the direction of movement by which the first engaging element and the second engaging element are engaged with each other, the force and / or shape connection is made between the first gripping element and the second element and / or between the second engagement member and the mounting member. In particular, the second engagement member is located between the mounting member and the first engagement member so that by pushing or pressing the first engagement member against the second engagement member, the latter is pushed against the the mounting member thus making a connection by force. In some embodiments, the mounting unit further includes a connecting member connecting the first engagement member and the mounting member. There will thus be a transmission of forces between the first engagement member and the mounting member, for example to hold the second engagement member between the first engagement member and the mounting member by force connection. . According to the characteristic embodiments, the connecting element is U-shaped. For example, one branch of the U-shaped connecting element engages in the first engaging element and / or another branch. the U-shaped connecting element can be introduced into the mounting element. The first engagement member and the mounting member may respectively include a recess or recess for insertion into the respective branch. Thus, in particular, the wiper device mounting member will be simple and inexpensive to manufacture. In some embodiments, the first engagement member is cylindrical and the second engagement member is substantially half-shell shaped. This allows a simple way of introducing the first plug element into the second plug element or the second plug element into the first plug element, in particular making it possible to form a connection between the first and the second element. of taking. According to the characteristic embodiments, a branch of the U-shaped link member is spaced from the axis of the cylinder of the first engaging member to engage therewith. This makes it possible to have an eccentric mechanism used for example to establish a connection by force and / or by the shape. In some embodiments, by rotating the first gripping member about the axis of the cylinder, the bonding is effected by force and / or form between the first gripping member and the second gripping member. and / or between the second engagement member and the mounting member. In particular, if the mounting unit includes the eccentric mechanism described above, by rotating the first gripping member about the axis of the cylinder, bonding is effected by force and / or shape. Drawings The present invention will be described in more detail below with the aid of exemplary windscreen wiper devices shown in the accompanying drawings, in which: Figure 1A is a schematic diagram of one embodiment of the invention. of a wiper device according to the invention, in the unassembled state, FIG. 1B is a schematic representation of the windscreen wiper device of FIG. 1A according to one embodiment, for the state FIG. 2 is a perspective view of the windscreen wiper device of FIGS. 1A and 1B according to the invention. In the unassembled state, FIG. 3A is a diagrammatic representation of a wiper device. FIG. 3B is a diagrammatic view of the windscreen wiper device of FIG. 3A according to the invention, in the assembled state, for the non-fixed state, FIG. FIG. 4 is a schematic representation of a mounting unit of the wiper device According to the embodiments of the invention, FIG. 5A is a schematic representation of another embodiment of a wiper device according to the invention, in the form of a wiper arm. As shown in FIG. 5B is a schematic representation of the windscreen wiper arm with the integrated wiper blade of FIG. 5A in its position. 6 is a schematic perspective view of a wiper arm of a windscreen wiper device according to embodiments of the invention, and FIG. very schematically a flow chart explaining the embodiments of the method of mounting a wiper device according to the presentations of the invention. DESCRIPTION OF EMBODIMENTS OF THE INVENTION FIGS. 1A and 1B schematically show a wiper device 40 according to the invention. Figure 1B shows the wiper device 40 in the unsolicited state and Figure 1B shows the wiper device 40 of Figure 1A, in the set state. According to the forms of the invention, the windscreen wiper device 40 has a Fin-Ray structure, a wiper blade 2 with a windscreen wiper blade attachment piece 43 and a mounting unit According to the embodiments of the invention, the windscreen wiper device 40 comprises a wiper blade 2 having an elongate upper portion 10 and an elongate lower portion 12, both portions being at least partially flexible. Several connecting elements 18 connect the upper part 10 and the lower part 12. The connecting elements 18 are spaced apart in the direction of longitudinal extension 8 of the wiper device 40. The connecting elements 18 are designed to allow relative movement of the upper part 10 and the lower part 12, relative to each other, with a movement component in the longitudinal extension direction 8 of the wiper device According to the embodiments of the invention, the windscreen wiper device 40 comprises a mounting unit 41. Typically, the mounting unit 41 is mounted on a fastening element of a vehicle, for example the axis of the wiper drive. The mounting unit 41 includes the first engaging member 42. The wiper device 40 comprises the wiper arm 2 with the windscreen wiper blade attachment piece 43. This attachment piece 43 The first gripping element 42 and the second gripping element 44 are inserted into each other by a movement substantially perpendicular to the direction of longitudinal extension 8 of the broom. Thus, by a single movement, the windscreen wiper blade 2 is attached to the mounting unit 41. In addition, the windscreen wiper device 40 is simply and inexpensively manufactured. . In the typical embodiments, the first engaging member 42 and the second engaging member 44 formally and / or forcefully bond. The wiper blade 2 and the mounting unit 41 can thus be connected in a simple manner and in particular removably. For example, the mounting unit 41, in some embodiments, includes an actuator for making and / or releasing the connection by force and / or shape. According to the embodiments of the invention which can be combined with other embodiments, the connection by force means that the forces are transmitted (force-bonded, friction-linked). In particular, such connections use thrusts, pressures and / or friction forces. The assembly of the bonds results from the action of such forces. According to embodiments of the invention which can be combined with other embodiments, the connection by the form 3024109 8 means that it is the nesting of at least two elements (connection by the form). In particular, the elements can be connected by mechanical links with and without continuous transmission of forces. According to the embodiments of the invention, the first engaging member 42 and the second engaging member 44 are substantially dovetail-shaped as shown in Figures 1A and 1B. This makes it possible in a simple manner to form a connection which avoids in particular the movement of the wiper blade 2 in the direction of its longitudinal extension 8 and keeps it in its position 10 with respect to the mounting unit 41. Fig. 2 is a perspective view of the ice-resistive device of Figs. 1A, 1B according to the embodiments of the invention, in the unassembled state. Figure 2 shows an arrow 45 corresponding to the movement of the first engaging member 42 and the second engaging member 44 perpendicular to the longitudinal extension direction 8 of the wiper blade 2 for nesting a element in the other. Thus, a single movement secures the wiper blade 2 to the mounting unit 41. The wiper device 40 is simple and economical. Figure 3A is a schematic representation of a wiper device 50 according to an embodiment of the invention, in the unassembled state; Figure 3B is a schematic representation of the wiper device of Figure 3A according to the invention, in the assembled state. Figure 4 shows a schematic representation of a mounting unit 60 of the wiper device of the embodiments of the invention. In typical embodiments, the mounting unit 60 includes a mounting member 63. The mounting member 63 may be provided for example in or on a shaft area, for example on the shaft of a housing. vehicle wiper drive. The mounting member 63 is adapted so that the second engaging member 52 of the wiper blade side attachment member 51 is located after insertion between the first engaging member 61 and the mounting member 63. This situation is for example presented in FIGS. 3A and 3B. By way of example, by the movement of the first engagement member 61 relative to the mounting member 63 in a direction which is substantially perpendicular to the direction of longitudinal extension of the wiper blade 2 and / or which is substantially perpendicular to the direction of assembly movement of the first engagement member 61 and the second engagement member 52, the connection is made or developed by force and / or shape of the first engagement member 61 and the second engaging member 52 and / or between the second engaging member 52 and the mounting member 63. In particular, the second engaging member 52 is between the mounting member 63 and the first engaging member 61 if although by pushing or pressing the first engaging member 61 against the second engaging member 52, pressing or pressing the latter against the mounting member 63 to thereby make a connection by force and / or by the form .

According to the typical embodiments of the invention, the mounting unit 60 includes an eccentric mechanism for establishing and / or releasing a connection by force and / or shape. According to some embodiments, the mounting unit 60 further includes a connecting member 62 for connecting the first engagement member 61 and the mounting member 63. This allows, for example, to transmit a force between the first element of the assembly. socket 61 and the mounting member 63 for example to hold the second engagement member 52 between the first engagement member 61 and the mounting member 63. In typical embodiments, the connecting member 62 has a U-shape (see in particular Figure 4). The U-shaped link member 62 may also be called a U-shaped pin. By way of example, a branch of the U-shaped connecting element 62 is introduced into the first engagement element 61 and / or another branch of the U-shaped connecting element 62 is introduced. in the mounting member 63. The first engaging member 61 and the mounting member 63 have recesses, holes, grooves, or recesses suitable for receiving the respective leg. Thus, in particular, the screen member 61 of the wiper device 50 is simple and inexpensive to manufacture. In some embodiments, the first engagement member 61 is cylindrical and has a first radius (Figure 4); the second engaging member 52 is substantially in the form of a shell or a half-shell with a second radius. The first ray and the second ray can in principle be practically identical. This allows a simple way of introducing the first engaging element 61 into the second engaging element 52 or the second engaging element 52 into the first engaging element 61; this notably makes it possible to form a connection between the first engagement element 61 and the second engagement element 52. Characteristic embodiments as shown in FIG. 4 comprise a cylinder axis 67 at a distance from the branch of FIG. The axis passes into the first engagement element 61. Thus, according to typical embodiments, an eccentric mechanism is obtained which is used, for example, to make a connection via the strength and / or form. In some embodiments, by rotating the first engaging member 61 about the cylinder axis 67, the force and / or shape connection is made between the first engaging member 61 and the second engaging member 61. 52 and / or between the second engagement member 52 and the mounting member 63. In particular, if the mounting unit 60 comprises the eccentric mechanism described above, by the rotation of the first engagement member 61 around the axis 67 of the cylinder, for example, the connection is made by the shape and / or the force. By way of example, the mounting unit 60 may comprise in some embodiments an actuating device 64 for making and / or releasing the connection by force and / or shape.

In the example of FIGS. 3A and 3B, the actuating device 64 of the mounting unit 60 is in the form of a lever. The lever rotates the first engagement member 61 about the cylinder axis 67 to establish or release the linkage by force and / or shape between the first engagement member 61 and the second engagement member 52. and / or between the second engagement member 52 and the mounting member 3024109 11 63. In particular, the actuating device 64 controls the eccentric mechanism of the mounting unit 60 (eccentric with lever). According to the embodiment of FIGS. 3A and 3B, the fastening is carried out by a shell shape using an eccentric lever carried by the shaft. This makes it possible to compensate for the settlement of the structure in that the structural zone (the wiper blade) is rotated and then, again, for example using the eccentric lever, it is in tension. As possible attachment of the eccentric lever, a U-shaped spindle (connecting element) engaged in a drilling of the shaft area (mounting element) can be used. Thus, the embodiments described herein provide a wiper device that mounts and dismounts in a simple manner. Correspondingly, in the case of damage, it can simply be replaced or before passing through a washing tunnel, removed in a simple manner and then reinstalled just as easily. The wiper device according to the embodiments described herein is simple, economical and is manufactured with few materials. A windshield wiper operating on Fin-Ray principle 20 consists of two parts. A head zone (head unit) on the drive shaft and a flexible structural zone (wiper blade) correspond to this principle with the following advantages: the mass of the part to be replaced in case of Maintenance intervention is less than the solution using an integrated head, which represents a resource saving and a cost advantage. In addition, economical manufacturing is possible thanks to the form without undercut of the structural zone (injection or drawer or extruded profile as extruded structure zone). According to the embodiments, there is an extruded connection (engagement) in the head region, for example with a dovetail shape. Exemplary embodiments of wiper system will be described below which the wiper device described is advantageously applied. In principle, however, the fastening device described for other windshield wiper devices can also be used.

FIGS. 5a and 5b schematically show a wiper blade 2 in the basic position (FIG. 5A) and in position against the window 4 (FIG. 5B) corresponding to embodiments of the windscreen wiper device. according to the invention. The wiper blade 2 5 wipes the window 4 of a vehicle, for example a motor vehicle. Usually, the wiper blade 2 is carried by a wiper arm driven by a motor to wipe the window. For this, the wiper blade 2 has a fastener by which it is attached to the wiper arm. The wiper blade 2 is in its basic position shown in FIG. 5A in which it is raised at least partially from the window pane 4. The wiper blade 2 has a longitudinal extension 8 and an elongate upper portion 10 and a lower portion 12 also elongated. The longitudinal extension of the upper part 10 and the lower part 12 correspond essentially to the longitudinal extension 8 of the wiper blade 2. Both the upper part 10 and the lower part 12 are flexible beams or can be made as flexible beams which are nevertheless presented in one piece in Figures 5A and 5B. This allows a particularly stable construction. But it is also possible that only a fraction of the upper part 10 and / or the lower part 12 is flexible. In addition, it is possible alternatively to make the upper part 10 in several segments. According to some embodiments which can be combined with other embodiments, for the upper part 10 and / or the lower part 12, a material having a modulus of elasticity in a range of 0.005 kN / mm 2 is used. and 0.5 kN / mm 2, especially between 0.01 kN / mm 2 and 0.1 kN / mm 2. This gives the upper part 10 and the lower part 12 a certain flexibility. With the surface of the section of the upper part, considered as appropriate, and the lower part, this gives optimum flexibility. The upper part 10 and the lower part 12 face each other. One end of the upper part 10 is connected to the outer connection position 34 at one end of the lower part 12 by a fixed connection. For the rest, the upper part 10 and the lower part 12 are separated from each other.

The upper part 10 and the lower part 12 are connected by connecting elements 18. In particular, in the basic position of the wiper blade 2, these connecting elements are oriented substantially in the transverse direction to the wiper blade 20. longitudinal extension direction 8 of the wiper blade 2. The connecting elements 18 are fixed by rotation joints to the inner longitudinal sides facing each other of the upper portion 10 and the lower portion 12. rotation 20 are made in the form of film-hinges. This solution is especially advantageous if the upper part 10 and the lower part 12 and / or the connecting elements 18 are made of plastic material or are coated with a suitable plastic material. According to the characteristic embodiments described herein which may be combined with other embodiments, the rotation joint is selected from the group consisting of: hinge, film-hinge, decrease in the thickness of the material to generate a lower rigidity along a torsion axis, articulation with an axis of rotation, means for connecting the upper part to the connecting element or for connecting the lower part to the connecting element and which allows the sliding of the lower part relative to the upper part in the direction of longitudinal extension. Embodiments in which the hinge is a hinge film thus constitute a very simple embodiment for Fin-Ray wiper blade joints. The windscreen wiper blade 2 may be made of a single attachment piece on the ice-brush side 20, finished at the mold outlet. According to characteristic embodiments, the wiper device and in particular the wiper blade are made of one or more materials of the group comprising: TPE (thermoplastic elastomer), for example TPE-S, TPE-O, TPE-U, TPE-A, TPE-V and TPE-E. The hinge films have a high extensibility, which results, for example, from the material selected from the group PP, PE, POM and PA. Alternatively, the film-hinges can be made of one or more materials of the group comprising TPE (thermoplastic elastomer) for example TPE-S, TPE-O, TPE-U, TPE-A, TPE-V and TPE-E.

The connecting elements 18 are spaced from each other in the direction of longitudinal extension of the wiper blade 2. The gaps between each time two connecting elements 18 are identical. But these differences can also be chosen differently. The differences are advantageously less than 50 mm, especially less than 30 mm. This results in a particularly high flexibility of the windscreen wiper device, particularly its lower part, and a good adaptation to the curvature and curvature variations of the window to be wiped.

The connecting elements 18 are connected to the lower part 12, in particular in the basic position of the wiper blade 2 so that the longitudinal axes make an angle 26 with respect to the lower part 12; angle between 65 ° and 115 ° and in particular between 75 ° and 105 °. In a particularly advantageous manner, the angles are between 80 ° and 100 °. This ensures a particularly good and advantageous transmission of a force exerted on the lower part towards the upper part. In addition, in this way, there is a very stable wiper device. The same applies to the fastenings of the connecting elements 18 on the upper part 10.

Deviations between the upper part 10 and the lower part 12 are defined primarily by the length of the connecting elements 18. The length of the connecting elements 18 increases from the external connection position to substantially where begins the attachment part 20 wiper blade side. Thus, the upper part 10 and the lower part 12 have, in side view on the wiper blade 2 according to FIG. 5A, a wedge shape. The connecting elements 18 are rigid in flexion. FIG. 5B is a schematic representation of the wiper blade 2 of FIG. 5A in position applied against the window pane 4.

Since the window 4 has a certain curvature, when the windscreen wiper 2 is applied against the window 4, contact pressure forces acting on the lower part 12 are applied. Like the upper part 10 and the lower part 12 are flexible beams and that the connecting elements 18 are rotatably connected to the upper part 10 and the lower part 12, these two parts 10, 12 can slide one with respect to the other . Under the effect of the thrust exerted from below on the lower part 12, the wiper blade 2 flexes in the direction from which the thrust comes and applies precisely against the curvature of the window pane 4.

Due to the structure of the described embodiments, in the case of a force acting on the lower part (force exerted by the pane 4), the lower part 12 flexes in the direction from which the force comes. This deformation results from the connection between the upper part 10 and the lower part 12 at the connection positions 14 and / or 16, 10 to the shape, and the rotation joints to the connection between the connecting elements 18 and the part upper or lower portion 12. In the representation according to Figure 5B, between the wiper blade 2 and the window 4, there remains a small distance which is provided in this figure for the purpose of explaining the window 4 and the windscreen wiper 2 when in fact the wiper blade 2 is directly applied against the window 4 and this gap does not exist. In addition and typically, the lower side of the lower part 12, not rotated, towards the upper part 10 has a wiping lip used to wipe the window 4. For reasons of visibility, this lip 20 suyage has not been shown in Figures 5A, 5B. The wiper device according to the embodiments described above uses the effect of the caudal fins of certain fish which, in response to a lateral thrust, do not escape in the direction of the thrust but on the other hand take a curved shape in the opposite direction, i.e. in the direction from which the thrust comes. This principle is called the principle of radiated fins or Fin-Ray principle. Thus, the wiper device according to the embodiments described here has the advantage of better adaptation to the window of a vehicle. In the case of a conventional wiper blade whose upper part is generally rigid, that is to say non-flexible, this effect is not encountered. FIGS. 5A and 5B further show a mounting unit 30 in which the windscreen wiper blade 2 is connected. The mounting unit 30 is connected to a windscreen wiper motor 32 which drives the windscreen wiper unit 32. assembly 30 for wiping the window 4. The mounting unit 30 may be constructed in accordance with the embodiments of the present invention and the wiper blade 2 may comprise the wiper blade side fastener part. according to the embodiments of the above publication. In addition, the wiper motor 32 is connected to a fastener to the vehicle. The wiper blade 2 has a wedge shape, one end of the upper portion 10 is connected to the outer connection position 34 at one end of the lower portion 12 by a solid connection. The other end of the upper portion 10 and that of the lower portion 12 are attached to a wiper blade side fastener. Figure 5A shows the wiper blade 2 in its position against the window so that the lower portion 12 is still substantially straight. According to other embodiments which can be combined with other embodiments, in the non-solicited state, the lower part has a convex shape, i.e. a convex shape which, therefore, from the middle zone, moves away from the upper part. This windscreen wiper device according to the present embodiments can, in contact with a window pane, typically have the convex shape of the lower part, and then take a concave shape for the lower part which fits the window pane. . Figure 6 is a schematic perspective view of the wiper blade 2 of a wiper device according to the embodiments of the invention. According to FIG. 6, the windscreen wiper blade 2 comprises, at the outer connection positions, one or more ends of the upper part 10 and the lower part 12, which are elongated, are connected, an outer width WE. According to characteristic embodiments, the outer width WE is at least 15 mm, in particular at least 20 mm and in particular at least 25 mm. According to other embodiments of the invention that can be combined with other embodiments, the width of the wiper blade 2 increases from the outer link positions towards the mounting unit 30. or the attachment by which the wiper blade is connected to the wiper arm. In Figure 3024109 17 6, by way of example, an internal width WM has been indicated. According to characteristic embodiments, the internal width WM is at least 20 mm, in particular at least 25 mm and in particular at least 30 mm.

The connecting elements 18 comprise, in particular, outside beyond its pivot joint 20, a thickness greater than or equal to 0.4 mm and in particular this thickness is less than 3 mm and preferably it is between 0, 6 mm and 2 mm and ideally it is between 1 mm and 1.7 mm and is for example equal to 1.5 mm. The connecting element 18 is a substantially rigid piece in bending and folding. This means that this element is designed to allow the movement of the upper part 10 and the lower part 12, relative to each other, with a movement component in the direction of longitudinal extension 8 of the Wiper blade 2. The connecting elements are connected to the upper part 10 in the respective high connection position and to the lower part 12 to the respective lower connection position. For example, the connecting positions each have a rotational articulation 20. When the upper part 10 and the lower part 12 move relative to each other, this does not change the distance between the top link position and the low link position of the same connecting element, that is to say that the distance remains constant to deviations, for example of ± 1 mm and in particular ± 0.3 mm.

In the direction of longitudinal extension 8 of the wiper blade 2, the distance between the upper part 10 and the lower part 12 decreases from the head piece at least in the longitudinal extension areas of the wiper blade 2. 2 or in a main portion of the longitudinal extension of the wiper blade 2. From the leading end, the height of the wiper blade 2 has a conical shape in some corners or decreases in the direction of longitudinal extension. For example, according to the embodiments, for a set of connecting members 18, the length of the connecting members 18 near the wiper blade head is larger than on the opposite side of the wiper blade. Wiper 2 in the longitudinal extension direction 8. To illustrate the embodiments of the wiper device mounting method 70, FIG. 7 very schematically shows a flowchart. According to the method 70, a wiper device according to the embodiments described above is used (step 71). The method comprises introducing (step 72) the first gripping member or the second gripping member successively by a movement substantially perpendicular to the direction of longitudinal extension of the windscreen wiper blade 2. Thus, by the shapes described here the wiper device and its mounting method, we arrive at a wiper device that mounts and dismounts in a simple manner. The wiper device may, in the event of damage, simply be replaced or before passing through a washing tunnel, may then be re-installed. In addition, the wiper device according to the embodiments of the invention is simple, economical and uses few materials.

20 3024109 19 NOMENCLATURE 2 Wiper blade 4 Glass / windshield 5 8 Longitudinal extension direction 10 Upper part 12 Lower part 18 Connection element 20 Rotation joint 10 40 Wiper device 41 Assembly unit 42 First grip element 43 Wiper blade attachment piece 44 Second grip element 15 45 Arrow 50 Wiper device 51 Wiper blade attachment piece 52 Second grip element 60 mounting 20 61 First engaging element 63 Mounting element 64 Actuating device 67 Cylinder axis 25

Claims (5)

CLAIMS 1 °) Wiper device (40, 50) of a vehicle having a fastener, having: a mounting unit (41, 60) for mounting on a fastener, the mounting unit ( 41, 60) having a first engaging member (42, 61), and a wiper blade (2) having: an elongated upper portion (10) at least partially flexible, an elongated lower portion (12) at least partially flexible, several connecting elements (18) for connecting the upper part (10) and the lower part (12), these connecting elements being spaced apart in the direction of longitudinal extension (8) of the wiper blade -glace (2) and the connecting elements (18) allowing a relative movement of the upper part (10) and the lower part (12), with respect to one another, with a movement component in the direction of longitudinal extension (8) of the wiper blade (2), the connecting elements (18) having a thickness of not less than 0.4 mm, and a wiper blade-side attachment (43, 51) having a second engagement member (44, 52), the first engagement member (42, 61) ) and the second engagement element (44, 52) being engaged relative to each other by a movement substantially perpendicular to the longitudinal extension direction (8). 2) Wiper device (40, 50) according to claim 1, characterized in that the first engagement element (42, 61) and the second engagement element (44, 52) form a connection in the form and / or by force. 3) Wiper device (50) according to claim 2, characterized in that the mounting unit 3024109 21 comprises an actuating device (64) for making and / or releasing the connection by the form and / or by force. Windscreen wiper device (40) according to claim 1, characterized in that the first engagement element (42) and the second engagement element (44) are essentially dovetail-shaped parts. . The wiper device (50) of claim 1, characterized in that the mounting unit (60) further comprises a mounting member (63) and the second engaging member (52) of the windscreen wiper blade attachment (53) is positioned after insertion between the first gripping member (61) and the mounting member (63). The wiper device (50) according to claim 5, characterized in that by a movement of the first engagement member (61) with respect to the mounting member (63) in a direction which is substantially perpendicular to the longitudinal extension (8) of the wiper blade (2) and / or which is substantially perpendicular to the direction of engagement movement of the first engagement member (61) and the second engagement member (52), a force and / or shape connection is made between the first engagement member (61) and the second engagement member (52) and / or between the second engagement member (52) and the mounting member (63). The windscreen wiper device (50) according to claim 5 or 6, characterized in that the mounting unit (60) further comprises a connecting element (62) through which the first engaging element (62) 61) and the mounting element (63) are connected to each other. Windscreen wiper device (50) according to Claim 7, characterized in that the connecting element (62) is U-shaped. 3024109 22 9 °) Wiper device (50) according to claim 8, characterized by a branch of the U-shaped connecting element (62) which is introduced into the first engaging element (61) and / or another branch of the connecting element (62). ) U-shaped is introduced into the mounting element (63). Windscreen wiper device (50) according to claim 5, characterized in that the first gripping element (61) is cylindrical in shape and the second gripping element (52) is essentially half-shaped in shape. shell. Windscreen wiper device (50) according to claim 10, characterized in that a branch of the U-shaped connecting element (62) is spaced apart from the axis of the cylinder of the first element. socket (61) to be inserted therein. 12 °) wiper device (50) according to claim 10, characterized in that by a rotation of the first engagement element (61) around the axis of the cylinder, the connection is made by force and / or in the form between the first engagement member (61) and the second engagement member (52) and / or between the second engagement member (52) and the mounting member (63). 13) A method (70) for mounting a windshield wiper device comprising the steps of: (71) using a wiper (40, 50) device according to one of claims 1 to 12 Inserting the first engaging element (42, 61) and thus the second engaging element (44, 52) successively by a movement which is substantially perpendicular to the direction of longitudinal extension (8) of the windscreen wiper blade (2). 35