Motor vehicle wiper system

Abstract

The present invention relates to a windshield wiper system (100) for a motor vehicle, the windshield wiper system comprising a drive arm (1, 1') and a wiper (3) interconnected by a connecting device, the connecting device comprising a connector (4, 4') fixed to the wiper (3) and a connecting shaft (43, 43a, 43b, 19), the drive arm (1, 1') comprising a first end (10) and a second end (11) opposite to the first end (10) along the longitudinal direction (X) of the drive arm (1, 1'), the drive arm being connected to a drive device (2) via the first end, the connecting device comprising receiving spaces (16a, 16b, 44a', 44b') for receiving the connecting shaft (43, 43a, 43b, 19), the connector... The receiving space (16a, 16b, 44a', 44b') includes an inlet (160a, 160b, 440a', 440b') and a locking area (162a, 162b, 442a', 442b'), through which the connecting shaft (43, 43a, 43b, 19) is received in the receiving space (16a, 16b, 44a', 44b'), and the locking area is used to lock the connecting shaft (43, 43a, 43b, 19). The locking area is characterized in that the locking area (162a, 162b, 442a', 442b') is located between the inlet (160a, 160b, 440a', 440b') of the receiving space and the second end (11) of the drive arm (1, 1').

Description

Technical Field

[0001] This invention relates to the field of wiping and / or cleaning the surface of mounted glass in motor vehicles, and more particularly to windshield wiper systems for such applications. Background Technology

[0002] Windshield wiper systems for motor vehicles are designed to remove liquids and dust by wiping, which may interfere with a driver's view of their surroundings. These wiper systems typically include at least one drive arm and at least one wiper blade, the drive arm performing an angular reciprocating motion across the surface of the mounted glass to be wiped / cleaned, the wiper blade comprising a wiper rubber blade or rubber blade made of an elastic material. The wiper blade and drive arm are connected by a connecting assembly, which in particular includes a connector securely fastened to the wiper blade. For some configurations, an adapter connects the connector to the drive arm. More specifically, the invention relates to wiper systems in which the connector is configured to engage directly in the end portion of the drive arm, thereby allowing the wiper blade of the wiper system to be detachably secured to the drive arm while ensuring that, driven by the movement of the wiper blade and the arm, the rubber blade rubs against the surface of the mounted glass to be wiped / cleaned and removes water and a certain amount of dirt from the driver's view.

[0003] In such a wiper system, replacing the wiper when the rubber blades supported by the wiper are excessively worn is accomplished by disengaging the connector attached to the wiper from the drive arm. To do this, the drive arm is typically moved away from the surface of the glass it is intended to wipe / clean in a direction generally perpendicular to that surface, with the wiper pressed against it. Some drive arms are configured with a stable disengagement position, allowing easy access to the connector: this is especially true, for example, when the drive arm of the wiper system is intended to press against the windshield at the front of the vehicle. In this case, the user's hands are available to attach the connector associated with the wiper to the drive arm and to perform the reverse operation of disengaging the connector from the drive arm. Furthermore, in such a configuration, the travel range of the drive arm relative to the vehicle's glass surface allows the user to have a good view of the connection area between the connector and the drive arm.

[0004] Other drive arms lack a stable disengagement point: this is especially true when the wiper system is designed to wipe / clean the rear window of a motor vehicle. In this case, the connector and wiper must be assembled to and detached from the drive arm within a very small space and with reduced or even no visibility of the connector and its engagement point with the drive arm. Furthermore, in such a configuration, the user has only one hand available to attach the connector to the wiper to the drive arm or perform the reverse operation, as the other hand must keep the drive arm off the vehicle's surface to provide access to the connection area between the connector and the drive arm.

[0005] The object of this invention is to provide a simple and inexpensive solution to ensure easy assembly of a connector fixed to a windshield wiper with the drive arm of a motor vehicle's wiper system, regardless of the accessibility and visibility of the connection area between the connector and the drive arm. The solution proposed in this invention also aims to ensure that such a component maintains appropriate holding force over time. In particular, such a component needs to be able to withstand stresses applied to the drive arm and wiper, such as when a motor vehicle passes over an automatic washer system, which in some cases could cause the connector and wiper to detach from the drive arm. Summary of the Invention

[0006] To achieve its purpose, according to a first aspect, the subject of the invention is a windshield wiper system for a motor vehicle, the windshield wiper system comprising a drive arm and a wiper interconnected by a connecting device, the connecting device comprising a connector fixed to the wiper and a connecting shaft, the drive arm comprising a first end and a second end opposite to the first end along the longitudinal direction of the drive arm, the drive arm being attached to a drive device via the first end, the connecting device comprising a receiving housing for receiving the connecting shaft, the receiving housing comprising an inlet and a locking area, the connecting shaft being received in the receiving housing via the inlet, the locking area being used to lock the connecting shaft, characterized in that the locking area is located between the inlet of the receiving housing and the second end of the drive arm.

[0007] Advantageously, the components constituting the wiper system according to the invention, namely, in particular the drive arm, connector, and connecting shaft, are produced by injection molding plastic material in a mold.

[0008] Here, the longitudinal direction of the drive arm is its main extension direction. By extension, in the following text, this direction will be referred to as the longitudinal direction of the wiper system and the elements constituting the wiper system according to the invention. Perpendicular to this longitudinal direction is defined the vertical direction of the wiper system and the elements constituting the wiper system, which in the wiper system according to the invention corresponds to the stacking direction of the drive arm and the wiper. Referring to these directions and orientations, the terms "lower" and "bottom" in the following text refer to the portion of the wiper system closest to the wiper in the vertical direction of the wiper system, while the terms "upper" and "top" in the following text refer to the portion of the wiper system furthest from the wiper in the aforementioned vertical direction.

[0009] In a vehicle equipped with a wiper system according to the invention, the vertical direction of the wiper system is substantially perpendicular to the surface of the glass against which the wiper rests, and the term "bottom" or "lower" refers to the portion of the wiper system that contacts the surface of the glass in the aforementioned vertical direction. Referring to the aforementioned longitudinal and vertical directions, the transverse direction of the wiper system according to the invention and the elements constituting the wiper system is defined as a direction perpendicular to both the aforementioned longitudinal and vertical directions. The longitudinal, vertical, and transverse directions of the wiper system also indicate, and hereinafter refer to, the longitudinal, vertical, and transverse directions of the components of the wiper system, particularly the drive arm and its connector. It should be noted that the longitudinal, vertical, and transverse directions of the wiper system according to the invention are independent of the orientation of the system in space or on the motor vehicle.

[0010] In addition to the directions and orientations defined above, the first longitudinal end of the drive arm (through which the arm is attached to the drive unit) will arbitrarily be referred to hereinafter as the rear end of the drive arm, and the opposite end of the drive arm in the longitudinal direction of the wiper system according to the invention will be referred to as the front end of the drive arm. In the wiper system according to the invention, the drive arm is connected at its rear end to the drive unit, which is configured to perform angular reciprocating motion in a plane substantially parallel to the plane defined by the longitudinal and lateral directions of the wiper system. Driven by the angular reciprocating motion of the drive arm via a connector, the rubber wiper blade cleans the surface of the vehicle-mounted glass against which the wiper system rests.

[0011] In the wiper system according to the invention, the connecting shaft extends primarily in a direction generally parallel to the aforementioned lateral direction of the wiper system. Furthermore, according to the invention, a locking region for locking the connecting shaft in its receiving space is positioned in the longitudinal direction of the wiper system according to the invention between the entrance of the receiving space and the aforementioned front end of the drive arm, through which the connecting shaft is received in its receiving space. Thus, in the wiper system according to the invention, the operation of locking the connecting shaft in its receiving space involves at least one relative translational movement of the connecting shaft and the receiving space relative to each other in the longitudinal direction of the wiper system.

[0012] According to a first embodiment of the invention, the connecting shaft is supported by a connector, and the receiving space is arranged in a receiving wall located within the accommodating volume of the drive arm. According to this first embodiment, the connector is thus received within the accommodating volume of the drive arm to connect the drive arm to the wiper of the wiper system according to the invention. The accommodating volume is defined at least by the upper wall and two lateral flanks of the drive arm.

[0013] Specifically, and referring to the directions and orientations defined above, according to this first embodiment of the invention, the accommodating volume of the drive arm (in which the connector is received) is defined by the upper wall of the drive arm, two sidewalls of the drive arm extending substantially perpendicularly to the upper wall from its two longitudinal edges, and the lower edges of these sidewalls. It must therefore be understood that the sidewalls of the drive arm are attached to its upper wall via their longitudinal upper edges. In other words, the accommodating volume forms a substantially inverted U-shape in cross-section in a plane defined by the vertical and lateral directions of the wiper system, with its horizontal branches formed by the upper wall of the drive arm and its vertical branches formed by its sidewalls. The accommodating volume of the drive arm is therefore open at its lower portion to receive the connector of the wiper system.

[0014] According to this first embodiment of the invention, the connecting shaft, for example a generally cylindrical shape having a circular cross-section, extends in a direction generally parallel to the lateral direction of the connector and the wiper system. More specifically, the connecting shaft extends from the upper post of the connector, generally parallel to the vertical-longitudinal plane of the wiper system and the connector. Advantageously, the connecting shaft extends laterally from the aforementioned upper post in a direction along the lateral direction of the wiper system according to the invention toward the nearest side of the drive arm.

[0015] The drive arm wall, hereinafter also referred to as the receiving wall, in which the receiving space is disposed, is a generally flat wall and generally parallel to the aforementioned side surface of the drive arm. Referring to the direction defined above, the receiving wall thus extends generally parallel to the vertical-longitudinal plane of the wiper system and the drive arm according to the invention. More specifically, the receiving wall is disposed within the aforementioned accommodating volume of the drive arm. Even more specifically, within this accommodating volume, the receiving wall extends from the upper wall of the drive arm and is positioned at a distance from its side surface along the lateral direction of the drive arm. In one example, the aforementioned receiving wall and side surface are connected by one or more reinforcements perpendicular to both elements.

[0016] In one example, the receiving wall includes a lower edge extending substantially within a plane defined by the lower edge of the side of the drive arm. It must be understood here that the lower edge of the receiving wall is formed by its thickness and, with reference to the orientation and direction defined above, extends generally parallel to the lateral-longitudinal plane of the wiper system and drive arm according to the invention.

[0017] Here, the receiving space forms a cut in the receiving wall that leads to the rear edge of the receiving wall, that is, to the edge of the wall closest to the first end or rear end of the drive arm in the longitudinal direction of the drive arm, referring to the direction and orientation defined above. It must be understood here that the rear edge of the receiving wall is formed by its thickness and, referring to the direction and orientation defined above, extends approximately parallel to the transverse-vertical plane of the drive arm.

[0018] According to the invention, the receiving space forms an entrance through an opening in the rear edge of the receiving wall, through which the connecting shaft enters the receiving space. This opening is located, in the vertical direction of the drive arm, at a distance from both the lower edge of the receiving wall (as defined above) and the upper wall of the drive arm. In other words, the receiving space for the connecting shaft extends into the rear edge of the receiving wall and is located between the lower edge of the wall and the upper wall of the drive arm in the vertical direction of the drive arm.

[0019] The connecting shaft is locked in a locking area within the aforementioned receiving space, the locking area extending longitudinally along the drive arm from the entrance of the receiving space. In one example, the locking area comprises a first portion and a second portion, hereinafter also referred to as an end portion, in the aforementioned longitudinal direction. In such an example, the first portion of the locking area forms a generally longitudinal window in the receiving wall, and a dimension of this window, measured in the vertical direction of the drive arm, is slightly smaller than the diameter of the connecting shaft. Furthermore, in such an example, the second portion of the locking area has a shape and size that are substantially complementary to the shape and size of the connecting shaft. According to the invention, the second portion of the locking area is located between the entrance of the receiving space and the second end or front end of the drive arm as defined above in the longitudinal direction of the drive arm and wiper system.

[0020] According to the first embodiment described above, the connector is inserted into the receiving volume of the drive arm by engaging the connecting shaft in the entrance of the receiving space, and then performing a translational movement of the connecting shaft in the receiving space along the longitudinal direction of the wiper system toward the end portion of the locking area, i.e., toward the front end of the drive arm. The connector is then fixed in place in the receiving space by snapping the connecting shaft into the end portion of the locking area. It should be noted that the configuration of the receiving space and the properties of the plastic material used to manufacture the drive arm mean that during the translational movement of the connecting shaft in the first part of the locking area, the lower part of the receiving wall (contained in the vertical direction of the wiper system between the receiving space and the lower edge of the receiving wall) deforms under the elasticity of the plastic material used to make the drive arm, facilitating the passage and sliding of the connecting shaft.

[0021] According to this embodiment, the corresponding configuration of the receiving space and its locking area also means that the connector is assembled and locked into the accommodating volume defined above by a relative translational movement of the connector relative to the drive arm generally along the longitudinal direction of the wiper system, such relative translational movement having a tendency to bring the connector closer to the aforementioned front end of the drive arm.

[0022] The complementary features of the present invention according to the first embodiment, wherein these features are considered individually or in combination:

[0023] The drive arm includes two receiving walls, one on each side of the longitudinal midplane of the drive arm, each receiving wall including a receiving space for receiving the connecting shaft. In this case, the connecting shaft advantageously extends from two generally parallel upper posts of the connector, which are symmetrically arranged with respect to the longitudinal midplane of the connector. Here, the longitudinal midplane should be understood with reference to the orientation and direction defined above as referring to the vertical-longitudinal plane passing through the middle of the connector in the transverse direction defined above. In such an example, the connecting shaft extends laterally toward the side of the drive arm in the transverse direction of the wiper system on each side of the aforementioned two upper posts of the connector. More specifically, in that case, the connecting shaft consists of two portions extending laterally toward the side of the drive arm from the aforementioned upper posts. In various variations, the connecting shaft is integral or comprises two portions of the same size, which are aligned in the transverse direction of the wiper system and form the aforementioned portions. Advantageously, according to such an example, one dimension of the connecting shaft in the transverse direction of the wiper system is slightly smaller than the transverse dimension of the drive arm, which is measured between those surfaces on its side that lie within the accommodating volume defined above. This allows the longitudinal fixation energy obtained through the configuration of the locking zone to be supplemented by the lateral fixation between the sides of the drive arms when the connector is in place in the aforementioned accommodating volume.

[0024] The drive arm includes a guide member comprising a main wall inclined toward the entrance of the receiving space. The guide member extends longitudinally to the rear of the receiving wall as previously defined. The guide member includes a main wall substantially parallel to the receiving wall, extending to its rear. The main wall points in the direction in which the connecting shaft is inserted into the receiving space. Referring to the direction defined above, the lower edge of the main wall (formed by the thickness of the wall) inclined toward the entrance of the receiving space. In other words, the dimension of the main wall of the guide member, measured along the vertical direction of the drive arm, decreases from the rear end to the front end of the main wall. More specifically, the dimension of the main wall of the guide member, measured along the vertical direction of the drive arm, starting from the upper wall of the drive arm, at the front end of the main wall of the guide member, is less than the distance measured along the vertical direction of the drive arm between the upper wall of the drive arm and the lower edge of the entrance of the receiving space receiving the connecting shaft. It should be remembered that, referring to the direction and orientation defined above, the front end of the main wall of the guide member is the end closest to the second or front end of the drive arm in the longitudinal direction of the drive arm. Similarly, the rear end of the main wall of the guide member is the end closest to the first or rear end of the drive arm in the longitudinal direction of the drive arm. This means that the inclined edge of the main wall of the guide member provides longitudinal guidance for the connecting shaft, allowing it to face the entrance of the receiving space. In configurations where the drive arm does not have a stable disengagement position and the cooperating area between the connector and the drive arm will not be directly visible when assembling the connector (i.e., the wiper to which the connector is fixed) with the drive arm, this longitudinal guidance offers a significant advantage in ease of assembly.

[0025] The guide member includes a support wall for supporting the connecting shaft. More specifically, the guide member includes a transverse wall that extends substantially perpendicularly to the front end of the main wall and is supported on the side of the drive arm closest to the main wall in the transverse direction of the drive arm.

[0026] Advantageously, a dimension of the transverse wall of the guide member, measured in the vertical direction of the drive arm, is approximately equal to the dimension of the main wall of the guide member at its front end, measured in the vertical direction of the drive arm. The configuration of the guide member and the receiving space means that the transverse wall completes the aforementioned longitudinal guidance provided by the inclined edge of the main wall of the guide member by forming a support surface on which the connecting shaft can be supported. This contact particularly ensures the correct positioning of the connecting shaft relative to the entrance of the receiving space, allowing the connecting shaft to engage within the receiving space.

[0027] The drive arm includes a low wall for fixing the connector in place. Referring to the orientation and orientation defined above, the low wall extends in a generally vertical-longitudinal plane of the drive arm and is positioned approximately midway along its lateral direction. The low wall is configured to insert between the aforementioned upper posts of the connector. In this way, the low wall fixes the connector laterally within the accommodating volume of the drive arm, thereby limiting the lateral swaying movement of the wiper relative to the drive arm.

[0028] According to a second embodiment of the invention, the connecting shaft extends between two sides of the drive arm, and a receiving space for receiving the connecting shaft is arranged in the connector.

[0029] In the first variation, the connecting shaft extends laterally from the sides of the drive arms and is supported on each of them. Alternatively, the connecting shaft is arranged from the side walls of the drive arms, which are generally parallel to their sides and arranged within the accommodating volume defined above.

[0030] According to the second embodiment of the present invention, a receiving space is arranged in the upper post of the connector. Referring to the orientation and orientation defined above, the entrance to this receiving space leads to the upper edge of the relevant upper post, that is, in the wiper system according to the present invention, to the edge of the upper post of the connector closest to the upper wall of the drive arm.

[0031] In the wiper system according to the invention, the receiving space here extends from its inlet toward the bottom and front of the wiper system, that is, with reference to the directions and orientations defined above, it extends on the one hand toward the opening of the accommodating volume of the drive arm (in which the connector is received) in the vertical direction of the wiper system, and on the other hand toward its front, i.e. toward the aforementioned second end or front end of the drive arm, in the longitudinal direction of the wiper system.

[0032] Similar to the first embodiment described above, the locking region for locking the connecting shaft includes: a second portion or end portion whose shape and size are substantially complementary to the shape and size of the connecting shaft; and a first portion extending in the longitudinal direction defined above between the entrance of the receiving space and the second portion of the locking region. Similar to the first embodiment described above, the engagement and fixation of the connecting shaft in the receiving space is achieved, on the one hand, by the relative translational movement of the connector relative to the drive arm supporting the connecting shaft, and on the other hand, by snapping the connecting shaft fastened in the second portion of the locking region.

[0033] The above means that, in the wiper system according to the second embodiment of the present invention, the first part of the locking area of ​​the receiving space is inclined towards the lower part of the drive arm in the vertical direction of the drive arm and towards its front end in the longitudinal direction of the drive arm.

[0034] According to the second embodiment of the present invention, the receiving space for receiving the connecting shaft includes at least one guide wall for guiding the connecting shaft into the receiving space. More specifically, and referring to the above, the guide wall includes the lower edge of a first portion of the locking area, that is, the edge closest to the wiper to which the connector is fixed in the vertical direction of the wiper system. This means that the lower edge is inclined along the direction in which the connecting shaft is inserted into the receiving space.

[0035] In the second embodiment of the invention just described, the connector is installed in the accommodating volume of the drive arm and fixed in place, as described below. First, the connector is engaged in the lower opening of the accommodating volume of the drive arm, such that the second portion of the locking area of ​​the receiving space is located on the front end side in the longitudinal direction of the drive arm.

[0036] The connector is then moved relative to the drive arm in a longitudinal translational motion toward either the first or rear end of the drive arm until the connecting shaft, supported by the drive arm, engages in the entrance of the receiving space arranged in the connector. This relative translational motion continues until the connecting shaft is snapped into the second portion of the locking area of ​​the receiving space in the longitudinal direction. In these engagement and relative translational movements, the connector is guided relative to the connecting shaft first by the upper edge of the connector's upper post (into which the receiving space opens), and then by the aforementioned lower edge of the first portion of the locking area. Thus, the upper edge of the connector's upper post (into which the receiving space opens) and the lower edge of the first portion of the locking area together form a guide member that guides the connecting shaft relative to the receiving space when these two elements are assembled and / or disassembled.

[0037] Regardless of the configuration chosen, the fastening of the connecting shaft into the second part of the locking area causes the connector to remain longitudinally and vertically fixed relative to the drive arm, while allowing the connecting shaft to rotate freely relative to the drive arm about an axis parallel to the lateral direction of the wiper system. This rotation, in the wiper system according to the invention, allows the wiper to move relative to the drive arm.

[0038] Furthermore, regardless of the configuration chosen, this invention allows for easy fitting of the wiper system connector into the housing volume of the wiper system's drive arm without requiring visibility of the connection area between the two components. Therefore, this invention is particularly advantageous and, consequently, can be extended, according to the second aspect, to wiper systems covering drive arms that do not have a stable disengagement position. It should be remembered that in such wiper systems, the user has only one hand available to attach the connector to the wiper to the drive arm or perform the reverse operation, as the other hand must keep the drive arm away from the vehicle's glass surface to provide access to the connection area between the connector and the drive arm.

[0039] More specifically, the invention is particularly advantageously applied to wiper systems in which the travel of the drive arm is perpendicular to the surface of the mounted glass against which the wiper system rests. For example, the maximum angular travel of the drive arm of the wiper system according to the invention relative to the surface of the vehicle's mounted glass is less than about 10°, especially when the wiper system is intended to be associated with the rear surface of the vehicle's mounted glass.

[0040] Finally, according to a third aspect, the invention extends to a method for removing a windshield wiper from a drive arm in a wiper system as described above, the method comprising the step of: performing a relative translational movement of a connecting shaft relative to a receiving space along a guide member of the wiper system. Advantageously, this translational movement is performed in a plane including the longitudinal direction of the drive arm.

[0041] According to the first embodiment of the present invention, the relative translational movement of the connecting shaft relative to the receiving space has the effect of removing the connector from the first end or rear end of the drive arm, through which the arm is connected to the drive device. According to the second embodiment of the present invention, the relative translational movement of the connecting shaft relative to the receiving space has the effect of moving the connector closer to the first end or rear end of the drive arm, through which the arm is connected to the drive device. Attached Figure Description

[0042] Other features, details, and advantages of the invention will become clearer with the aid of the following description and accompanying drawings, in which:

[0043] [ Figure 1 [Illustrated perspective view of a windshield wiper system according to the present invention]

[0044] [ Figure 2 [Illustrated perspective view of a connector for a windshield wiper system according to a first embodiment of the present invention]

[0045] [ Figure 3 [Illustrated perspective view of the drive arm of the wiper system according to the first embodiment of the present invention]

[0046] [ Figure 4 This schematically illustrates the following based on Figure 2 and Figure 3 The first embodiment of the present invention shows the assembly of the connector and the drive arm.

[0047] [ Figure 5 [Illustrated perspective view of the drive arm of a wiper system according to a second embodiment of the present invention]

[0048] [ Figure 6 [Illustrated perspective view of a connector for a windshield wiper system according to a second embodiment of the present invention]

[0049] [ Figure 7 This schematically illustrates the following based on Figure 5 and Figure 6 The second embodiment of the present invention is shown, showing the assembly of the connector and the drive arm.

[0050] First, it should be noted that although the invention is illustrated in detail in the accompanying drawings for the purpose of implementing the invention, the drawings may be used to better define the invention if necessary. It should also be noted that in all the drawings, similar and / or elements performing the same function are indicated by the same reference numerals. Detailed Implementation

[0051] refer to Figure 1 A windshield wiper system 100 intended for use in a motor vehicle includes, in particular, a drive arm 1 configured to perform angular reciprocating motion on an unequally depicted surface of the vehicle's glass. The drive arm 1 has an elongated shape in its main extending direction, which is also referred to hereinafter as the longitudinal direction (X) of the drive arm 1 and the windshield wiper system 100. At one end 10 in its longitudinal direction (and hereinafter arbitrarily referred to as the first end or rear end 10), the drive arm 1 is connected to a drive unit 2 configured to impart the aforementioned angular reciprocating motion to it. The drive unit 2 includes, for example, a motor.

[0052] At its opposite end 11 in the longitudinal direction (X) (and arbitrarily referred to below as the second end or front end 11), the drive arm 1 is connected by a connecting device 200 (in Figure 1 (Not detailed herein) Connected to wiper 3. Wiper 3 specifically features a rubber blade 30, which in Figure 1 The image is schematically shown and is made of a flexible material. When the drive arm 1 is driven to move back and forth at an angle on the surface of the vehicle's glass, it in turn drives the wiper 3 and its rubber blade 30. Under the action of this movement, the rubber blade rubs against the surface of the glass and removes any dust and dirt that may interfere with the driver's view of the surrounding environment.

[0053] The connecting device 200 particularly includes a connector 4, which in Figure 1 The wiper is not visible to the windshield wiper 3 and is connected to the drive arm 1 in a way that allows the windshield wiper 3 to rotate relative to the drive arm 1 about a transverse axis (Y) perpendicular to the aforementioned longitudinal direction (X).

[0054] The lateral axis (Y) around which the wiper 3 can rotate relative to the drive arm 1 also represents the lateral direction (Y) of the wiper system 100. Referring to the longitudinal direction (X) and the aforementioned lateral direction (Y), a vertical direction of the wiper system 100 is also defined, which represents the stacking direction of the wiper 3 and the drive arm 1 in the wiper system 100. The vertical direction of the wiper system 100 is represented by the direction of the axis (Z), and the reference frame (X, Y, Z) forms a regular trihedron. For this trihedral system, the term "top" or "upper" will be represented by the positive direction of the axis (Z), and the term "bottom" or "lower" will be represented by the negative direction of the same axis (Z). More specifically, in the wiper system 100 according to the invention, the term "top" or "upper" will hereinafter refer to the element located on the drive arm 1 side in the aforementioned vertical direction (Z), and the term "bottom" or "lower" will hereinafter refer to the element located on the rubber blade 30 side in the vertical direction (Z). It should be noted that the directions defined in this way are independent of the orientation and orientation of the vehicle equipped with these components. In other words, the longitudinal direction (X), lateral direction (Y), and vertical direction (Z) can have any orientation relative to the longitudinal direction, lateral direction T, and vertical direction V of the motor vehicle equipped with the wiper system according to the invention. The longitudinal direction (X), lateral direction (Y), and vertical direction (Z) of the wiper system 100 also refer to, and in the following text indifferently, the longitudinal direction, lateral direction, and vertical direction of the components of the wiper system 100, particularly the drive arm 1 and the connector 4.

[0055] Figure 2 A perspective view schematically illustrates a representation similar to the first embodiment of the present invention. Figure 1 Connector 4 of the wiper system 100 shown.

[0056] Referring to the figure, connector 4 includes a base 40 and two upper posts 41a, 41b, which extend from the base 40 along the vertical direction (Z) of the connector and toward the top of the connector with reference to the directions and orientations defined above. The base 40 of connector 4 includes an upper wall 400 extending generally in a transverse-longitudinal plane, and two side walls 401a, 401b extending generally perpendicularly from the upper wall 400 along the aforementioned vertical direction (Z) and toward the bottom with reference to the directions and orientations defined above. The upper wall 400 and the side walls 401a, 401b together define a channel 402 configured to receive the aforementioned windshield wiper 3. Figure 2 Not shown in the diagram. Referring to the direction and orientation defined above, channel 402 therefore opens at its lower part to receive wiper 3.

[0057] The upper posts 41a and 41b of connector 4 are generally flat and parallel to each other, extending generally parallel to the vertical-longitudinal plane defined by the aforementioned directions (X, Z). More specifically, according to Figure 2In a more specific example, the upper posts 41a and 41b extend approximately symmetrically on each side of a vertical-longitudinal midplane 450, which passes through the middle of the upper wall 400 of the base 40 of the connector 4 in the transverse direction (Y). A longitudinal slot 42 is defined between the lateral posts 41a and 41b, which extends parallel to the aforementioned vertical-longitudinal midplane 450.

[0058] At approximately the midpoint of the longitudinal direction (X), the upper posts 41a and 41b of connector 4 each include generally cylindrical portions 43a and 43b, whose axes are generally parallel to the transverse direction (Y) of connector 4. Each portion 43a and 43b extends laterally from the upper posts 41a and 41b in a direction opposite to the aforementioned transverse slot 42. Figure 2 Only part 43a is visible in the middle.

[0059] According to one example, parts 43a and 43b are identical and their axes are aligned. Alternatively, parts 43a and 43b can be joined within the transverse slot 42 to form a single transverse axis.

[0060] Figure 3 A perspective view schematically illustrates a representation similar to the first embodiment of the present invention. Figure 1 The drive arm 1 of the windshield wiper system 100 is shown. Therefore, as... Figure 3 The drive arm 1 shown is configured to receive a device similar to, for example, Figure 2 Connector 4 is shown. Figure 3 More specifically, the second end 11 or front end of this drive arm 1 is shown. More specifically, Figure 3 The front end 11 of the drive arm 1 is shown, viewed from its lower side, i.e., from the side of the drive arm 1 to which the wiper 3 is attached to the wiper system 100, referring to the direction and orientation defined above.

[0061] refer to Figure 3 The drive arm 1 includes a generally longitudinally and laterally extending upper wall 12, from which two generally longitudinally and vertically extending sides 13a, 13b extend, generally perpendicular to the upper wall 12. The upper wall 12 and the sides 13a, 13b together define a receiving volume 150, which is specifically configured to receive, as described above, and in… Figure 2 The connector 4 is shown in the diagram. More specifically, the accommodating volume 150 includes an opening 151, which is specifically configured to allow the connector 4 to be inserted into the accommodating volume 150. Referring to the orientation and orientation defined above, the opening 151 is arranged in the lower part of the accommodating volume 150, that is, the portion of the volume intended to be closest to the wiper 3 in the wiper system 100 in the vertical direction (Z) as defined above. Figure 3In a more specific example, the opening 151 is defined by the lower edge 120 of the upper wall 12 of the drive arm 1 and the lower edges 130a and 130b of the sides 13a and 13b, respectively.

[0062] According to the present invention, the drive arm 1 includes a receiving wall 14 disposed within a accommodating volume 150, the receiving wall extending substantially parallel to the sides 13a, 13b from the upper wall 12 of the drive arm 1, and at a certain distance from the sides in the transverse direction (Y) of the drive arm 1. Figure 3 In the more specific example shown, the drive arm 1 includes two sidewalls 14a and 14b, which are parallel to each other and symmetrically arranged on each side of the vertical-longitudinal midplane 155 of the drive arm 1, which is defined by the directions (X, Z) defined above and passes through the midpoint of the upper wall 12 in the transverse direction (Y). Figure 3 As shown, each receiving wall 14a, 14b is attached to the corresponding side 13a, 13b of the drive arm 1 by at least one rib 140a, 140b substantially perpendicular to the respective receiving wall 14a, 14b. More specifically, the ribs 140a, 140b extend between the receiving wall 14a, 14b and the side 13a, 13b of the drive arm 1 closest to that wall in the lateral direction (Y).

[0063] Each receiving wall 14a, 14b has cutouts 16a, 16b, forming receiving spaces to receive portions 43a, 43b of the aforementioned connector 4. Therefore, it must be understood that, according to... Figure 2 and Figure 3 In a more specific example shown, each part 43a, 43b of connector 4 forms a connecting shaft that connects connector 4 to drive arm 1.

[0064] Receiving spaces 16a, 16b include entrances 160a, 160b, through which the receiving spaces connect to the rear vertical edges 141a, 141b of the receiving walls 14a, 14b. The rear vertical edges 141a, 141b must be understood here as the edges of the relevant walls furthest from the front end 11 of the drive arm 1 in the longitudinal direction (X). More specifically, and as... Figure 3 As shown, the entrances 160a and 160b of the receiving spaces 16a and 16b are arranged in the vertical direction (Z) of the drive arm 1 at a certain distance from the lower edges 142a and 142b of the receiving walls 14a and 14b and the upper wall 12. Advantageously, the lower edges 142a and 142b of the receiving walls 14a and 14b and the lower edges 130a and 130b of the sides 13a and 13b are substantially coplanar. Advantageously, a dimension measured along the vertical direction (Z) of the entrances 160a and 160b is approximately equal to the diameter of the portions 43a and 43b forming the connecting shaft.

[0065] Starting from the entrances 160a and 160b, the receiving spaces 16a and 16b extend along the longitudinal direction (X) of the drive arm 1 toward the front end 11 of the arm.

[0066] More specifically, the receiving spaces 16a, 16b include first portions 161a, 161b and second portions 162a, 162b, or end portions, that begin at their inlets 160a, 160b and operate sequentially toward the front end 11 of the drive arm 1, and are generally aligned in the longitudinal direction (X). The first portion 161b and the second portion 162b of the receiving space 16b are in... Figure 3 It is not visible in the middle.

[0067] According to the present invention, a dimension measured along the vertical direction (Z) of the first portions 161a, 161b is slightly smaller than the diameter of portions 43a, 43b of the connector 4. Furthermore, the shape and dimensions of the aforementioned end portions 162a, 162b provided by the present invention are substantially complementary to the shape and dimensions of portions 43a, 43b of the connector 4. The first portions 161a, 161b and the second portions 162a, 162b together form a locking area for locking the connector 4 to the drive arm 1.

[0068] According to the present invention, the drive arm 1 further includes a guide member disposed within the accommodating volume 150. Figure 2 and Figure 3 In a more specific example shown below, the drive arm 1 includes two guide members 17a and 17b, one on each side of the vertical-longitudinal midplane 155 defined above.

[0069] Referring to the orientation and naming conventions defined above, each guide member 17a, 17b extends in the longitudinal direction (X) of the drive arm 1 to the rear of the receiving wall 14a, 14b. In other words, each receiving wall 14a, 14b is located in the longitudinal direction (X) of the drive arm 1 and the wiper system 100 between the front end 11 of the drive arm 1 and the corresponding guide member 17a, 17b.

[0070] Each guide member 17a, 17b extends in the longitudinal direction (X) of the drive arm 1 into the continuation of the receiving walls 14a, 14b, and includes main walls 170a, 170b that are substantially parallel to their sides 13a, 13b closest in the transverse direction (Y). More specifically, the main walls 170a, 170b of the guide members 17a, 17b are substantially aligned with the corresponding receiving walls 14a, 14b in the longitudinal direction (X) of the drive arm 1.

[0071] According to the invention, a dimension measured in the vertical direction (Z) of the drive arm 1 at the front end of the main walls 170a, 170b is smaller than the dimension measured in the vertical direction (Z) of the drive arm 1 at the rear end of the main walls 170a, 170b. In other words, the main walls 170a, 170b of the guide members 17a, 17b are inclined in the longitudinal direction (X) of the drive arm 1 towards the receiving walls 14a, 14b, with the guide members 17a, 17b extending in the longitudinal direction in a continuation of the receiving wall. It should be remembered that, referring to the directions and orientations defined above, the front end of the main walls 170a, 170b in the longitudinal direction (X) of the drive arm 1 is the end of the wall closest to the front end 11 of the drive arm 1 as defined above. Similarly, the rear end of the main walls 170a, 170b in the longitudinal direction (X) of the drive arm 1 is the end of the wall furthest from the front end 11 of the drive arm 1.

[0072] The guide members 17a and 17b also include support walls 171a and 171b that are generally perpendicular to the main walls 170a and 170b of the guide members 17a and 17b. More specifically, the support walls 171a and 171b extend at the front ends of the main walls 170a and 170b between the main walls and the sides 13a and 13b of the drive arm 1 that are closest to each other in the transverse direction (Y). Figure 3 As shown, the support walls 171a and 171b are generally perpendicular to the main walls 170a and 170b and the side walls 13a and 13b, and the support walls extend between the main walls and the side walls.

[0073] according to Figure 2 and Figure 3 In a more specific example, the drive arm 1 also includes a generally vertical-longitudinal low wall 18 that extends approximately midway in the transverse (Y) direction of the drive arm 1. In other words, the low wall 18 extends approximately within the vertical-longitudinal midplane 155 defined above. The low wall 18 extends from the upper wall 12 of the drive arm. Furthermore, in the longitudinal direction, the low wall 18 extends approximately between the rear ends of the main walls 170a, 170b of the guide members 17a, 17b and the front ends of the receiving walls 14a, 14b. Advantageously, one dimension of the low wall 18, measured in the transverse (Y) direction of the drive arm 1, is slightly smaller than... Figure 2 The dimensions of the slot 42 of the connector 4 shown are measured in the transverse direction (Y) of the connector 4 and the wiper system 100, such that in the wiper system 100, the lower wall 18 of the drive arm 1 can be received in the longitudinal slot 42 of the connector 4, between the posts 41a and 41b thereon.

[0074] Figure 4 It shows something similar to the description above and as follows Figure 2 The connector 4 shown is similar to that described above and as follows Figure 3The assembly of the drive arm 1 is shown. Referring to the orientation and naming conventions defined above, this figure shows more specifically the front end 11 of the drive arm 1, viewed from below along the vertical direction (Z) of the drive arm 1 and the wiper system 100, that is, viewed from the side of the drive arm 1 whose aforementioned accommodating volume 150 opens to receive the connector 4. Figure 4 Connector 4 is also shown, positioned where it is assembled with drive arm 1, more specifically with its front end 11. In other words, Figure 4 The drive arm 1 and connector 4 are shown in their relative positions in the wiper system 100 according to the invention, where they are attached to each other.

[0075] Figure 4 The connector 4 and its base 40, its posts 41a and 41b, and its portions 43a and 43b forming the connecting shaft are shown again. Figure 4 Only portion 43b is visible in the figure. The figure also again shows the slot 402 defined above, configured to receive the wiper 3 of the wiper system 100, which includes the drive arm 1 and connector 4. The wiper 3 to which connector 4 is attached is not in… Figure 4 Described in the text.

[0076] Figure 4 The front end 11 of the drive arm 1, the accommodating volume 150 as defined above, its opening 151, and especially the receiving walls 14a, 14b, the receiving spaces 16a, 16b, the guide members 17a, 17b and the lower wall 18 are also shown again, as described above.

[0077] First, the upper parts of the upper posts 41a and 41b are inserted into the opening 151 of the accommodating volume 150 of the drive arm 1 along the vertical direction (Z) of the wiper system 100, and then the connector 4, which is fixed to the wiper 3, is attached to the drive arm 1, with portions 43a and 43b arranged in the upper parts. The direction in which the upper parts of the upper posts 41a and 41b of the connector 4 are inserted into the accommodating volume 150 of the drive arm 1 is as follows: Figure 4 As indicated by arrow F1 in the diagram. More specifically, this insertion is performed such that portions 43a and 43b of connector 4 abut against the thickness of the main walls 170a and 170b of the corresponding guide members 17a and 17b, i.e., against the lower edge of the main walls 170a and 170b.

[0078] via connector 4 relative to drive arm 1 along Figure 4The relative translational movement in the general longitudinal direction indicated by arrow F2, that is, the movement tending to move the connector 4 closer to the end portion of the front end 11 of the drive arm 1, continues the attachment of the connector 4 to the drive arm 1. During this movement, portions 43a and 43b of the connector 4 are guided by the inclination of the main walls 170a and 170b of the corresponding guide members 17a and 17b, and by the aforementioned support walls 171a and 171b. The aforementioned configuration and dimensions of the drive arm 1 mean that as the relative translational movement of the connector 4 relative to the drive arm 1 continues in the direction indicated by arrow F2, portions 43a and 43b respectively engage in the entrances 160a and 160b of the receiving spaces 16a and 16b.

[0079] Then, by continuing to translate the connector 4 relative to the drive arm 1 in the direction indicated by arrow F2, the connector 4 is fixed relative to the drive arm 1. During this movement, portions 43a and 43b are first guided along the first portions 161a and 161b of the receiving spaces 16a and 16b, and then locked into the end portions 162a and 162b of the receiving spaces 16a and 16b by a snap-fit. In this position, the connector 4 is fixed relative to the drive arm 1 in the longitudinal (X) and vertical (Z) directions of the arm and the wiper system 100. Relative rotational movement of the connector 4 relative to the drive arm 1 about the axis of portions 43a and 43b is still possible, thus allowing the wiper 3 fixed to the connector 4 to remain pressed against the complex-shaped embedded glass surface of the motor vehicle.

[0080] Additionally, it should be noted that the corresponding configurations of the connector 4 and the front end 11 of the drive arm 1 mean that, during the aforementioned translational movement, the lower wall 18 of the drive arm 1 is inserted between the upper posts 41a and 41b of the connector 4, thereby reducing the risk of the wiper 3 fixed to the connector 4 swaying laterally relative to the drive arm 1.

[0081] This invention therefore allows for the simple assembly and locking of the connector 4 to the front end 11 of the drive arm 1. It should be remembered that when the wiper system 100 is installed on a motor vehicle, during wiper 3 replacement, the drive arm 1 is moved away from the mounting glass surface in a direction substantially perpendicular to it, i.e., as described above, in a direction substantially parallel to the vertical direction (Z) of the wiper system 100. This means that, referring to the directions and orientations defined above, the connector 4 is inserted into the receiving volume 150 from below the drive arm 1.

[0082] From this perspective, it should be noted that, in particular, the inclination of the main walls 170a, 170b of the guide members 17a, 17b and the presence of the support walls 171a, 171b allow portions 43a, 43b of the connector 4 (forming the connecting shaft) to be guided as far as the receiving spaces 16a, 16b of the drive arm 1. In configurations where the travel of the drive arm 1 relative to the vehicle's glass surface is very small—that is, where the user has only reduced visibility or even no visibility at all of the aforementioned accommodating volume 150 and the elements constituting it—this guidance allows and facilitates the assembly and locking of the connector 4 relative to the drive arm 1. This guidance also facilitates the attachment and detachment of the connector 4 relative to the drive arm 1 in the aforementioned configurations, where the user must use only one hand to perform these operations while the other hand must keep the drive arm 1 away from the vehicle's glass surface. This makes the invention particularly attractive when applied non-exclusively to wiper systems intended for mounting on vehicle rear windows.

[0083] Figure 5 and Figure 6 The drive arm 1' and connector 4' of a second embodiment of the wiper system 100 according to the present invention are shown respectively. In this second embodiment, the connecting shaft is supported by the drive arm 1', and a receiving space configured to receive the connecting shaft is arranged in the connector 4'.

[0084] Figure 5 A drive arm 1' according to a second embodiment of the present invention is shown.

[0085] With Figure 3 In a similar manner to the drive arm 1 shown, the drive arm 1' includes an upper wall 12 and two side walls 13a, 13b, which together define the internal volume 150' of the drive arm 1'. The internal volume is generally U-shaped, with its lower branch formed by the upper wall 12 of the drive arm 1'.

[0086] according to Figure 5 In a more specific example, the drive arm 1' includes two walls, 15a' and 15b', arranged within the aforementioned internal volume 150', hereinafter also referred to as connecting walls 15a' and 15b', which are generally parallel to each other and parallel to the aforementioned sides 13a and 13b. More specifically, each connecting wall 15a' and 15b' extends in the lateral direction (Y) of the drive arm 1' at a distance from its closest side 13a and 13b in the aforementioned lateral direction (Y). According to one example, each connecting wall 15a' and 15b' is connected to its closest lateral side 13a and 13b by one or more reinforcements, which are generally perpendicular to the two elements.

[0087] according to Figure 5In a more specific example, the connecting shaft 19 extends in the lateral direction (Y) of the drive arm 1' between the connecting walls 15a' and 15b'. This means that the connecting shaft 19 is substantially perpendicular to the connecting walls 15a' and 15b'. According to an alternative example, the connecting shaft 19 may extend between the sides 13a and 13b.

[0088] Figure 6 More specifically, a connector 4' according to the second embodiment described above is shown, which is configured to connect with a connector similar to... Figure 5 The drive arm 1' shown cooperates with... Figure 2 Similar to the connector 4 shown in the first embodiment of the present invention, the connector 4' also has a base 40 formed by the aforementioned upper wall 400 and two side walls 401a, 401b, which together define a slot 402 configured to receive a windshield wiper 3 of the wiper system 100. Figure 6 Not shown in the image.

[0089] Furthermore, and referring to the directions and orientations defined above, there are two upper pillars 41a' and 41b' extending vertically from the upper wall 400 to the top, which are generally parallel to each other and parallel to the vertical-longitudinal plane of the wiper system 100. More specifically, according to Figure 6 In a more specific example, the upper posts 41a' and 41b' extend approximately symmetrically on each side of the vertical-longitudinal midplane 450', which passes through the upper wall 400 at the midpoint in the transverse (Y) direction of the connector 4'. A longitudinal slot 42', approximately parallel to the vertical-longitudinal midplane 450', is defined between the upper posts 41a' and 41b'.

[0090] according to Figure 6 In a more specific example, each upper post 41a', 41b' includes a cutout 44a', 44b' that forms a housing to receive the aforementioned connecting shaft 19 supported by the drive arm 1'. More specifically, referring to the directions and orientations defined above, each cutout 44a', 44b' extends from the upper edges 410a', 410b' of the upper posts 41a', 41b' along a combination of the longitudinal direction (X) and the vertical direction (Z) of the connector 4'. In other words, each cutout 44a', 44b' is inclined in the corresponding upper post 41a', 41b' toward the upper wall 400 of the base 40, forming a non-zero angle 460 with the vertical direction (Z) of the connector 4'.

[0091] Each cutout 44a', 44b' leads to the upper edges 410a', 410b' to form inlets 440a', 440b' corresponding to the receiving shells 44a', 44b'. Furthermore, as... Figure 6As shown, each cut 44a', 44b' includes an end portion 442a', 442b' at the end opposite to its inlet 440a', 440b' along its main extension direction, the shape and size of which are substantially complementary to the shape and size of the aforementioned connecting shaft 19. According to Figure 5 and Figure 6 In a more specific example shown, the end portions 442a' and 442b' of each receiving space 44a' and 44b' constitute a snap-locking area for the connecting shaft 19 supported by the aforementioned drive arm 1'.

[0092] Between the inlets 440a', 440b' and the end portions 442a', 442b', each cut 44a', 44b' includes an intermediate portion 441a', 441b' whose shape and size are defined to allow the aforementioned connecting shaft 19 supported by the drive arm 1' to slide.

[0093] Figure 7 It showed something like Figure 6 The connector 4' shown is similar to Figure 5 The drive arm 1' shown is assembled in the wiper system 100 according to the invention. Referring to the orientation and orientation defined above, in... Figure 7 The connector 4' and drive arm 1' are shown in the image, viewed from below.

[0094] By engaging the connecting shaft 19 in the inlets 440a' and 440b' of the receiving spaces 44a' and 44b', and then sliding the connector 4' relative to the drive arm 1' in a direction inclined toward the locking areas 442a' and 442b' of the receiving spaces 44a' and 44b' that bring the connecting shaft 19 into the connector 4', the connection is fixed to... Figure 7 The connector 4' on the wiper 3 (not shown) is attached to the drive arm 1'.

[0095] More specifically, connector 4' is first engaged from the front end 11 of drive arm 1' into the accommodating volume 150' of drive arm 1' in a direction substantially parallel to the longitudinal direction (X) of drive arm 1'. The engagement direction of connector 4' and drive arm 1' is determined by... Figure 7 Arrow F3 indicates this. More specifically, connector 4' is engaged with drive arm 1' in such a way that locking areas 442a', 442b' are located between the aforementioned inlets 440a', 440b' and the front end portion of the front end 11 of drive arm 1'.

[0096] It must be understood that when the wiper system according to the invention is installed on a motor vehicle, with a small travel of the drive arm 1', the upper edges 410a', 410b' of the upper pillars 41a', 41b' slide against the connecting shaft 19, thereby guiding the connecting shaft to the inlets 440a', 440b' as far as the receiving spaces 44a', 44b'. This allows for easier assembly of the connector 4' with the drive arm 1'. During the relative sliding of the connector 4' relative to the drive arm 1', this guidance continues by causing the connecting shaft 19 to be between the inclined edges 4410a', 4410b', 4411a', 4411b' of the first portions 441a', 441b' of the receiving spaces 44a', 44b', until the connecting shaft 19 is snapped locked in the locking areas 442a', 442b'.

[0097] In other words, according to Figure 5 and Figure 6 In a more specific embodiment of the invention shown in the figure, the upper edges 410a', 410b' of the upper posts 41a', 41b' of the connector 4' and the inclined edges 4410a', 4410b', 4411a', 4411b' of the first portion of the receiving spaces 44a', 44b' form a guide member 45' that guides the connecting shaft 19 supported by the drive arm 1' relative to the connector 4'.

[0098] Therefore, as described just according to two different embodiments, the present invention provides a simple solution for replacing the wiper 3 of the wiper system 100, especially when the user has reduced or even zero visibility and low accessibility to the area where the connectors 4, 4' are attached to the drive arms 1, 1'.

[0099] However, the invention is not limited to the devices and configurations described and shown, but is also applicable to all equivalent devices or configurations, and any combination of such devices.

Claims

1. A windshield wiper system (100) for a motor vehicle, comprising a drive arm (1, 1') and a wiper (3) interconnected by a connecting device, the connecting device comprising a connector (4, 4') fixed to the wiper (3) and a connecting shaft (43, 43a, 43b, 19), the drive arm (1, 1') comprising a first end (10) and a second end (11) opposite to the first end (10) along a longitudinal direction (X) of the drive arm (1, 1'), the drive arm being attached to a drive device (2) via the first end, the connecting shaft (43, 43a, 43b) being supported by the connector (4), and receiving spaces (16a, 16b) for receiving the connecting shaft being arranged in receiving walls (14, 14a, 14b) located in a receiving volume (150) of the drive arm (1). The drive arm (1) includes two receiving walls (14a, 14b) symmetrically arranged on each side of a longitudinal midplane (155) of the drive arm (1). Each receiving wall (14a, 14b) includes receiving spaces (16a, 16b) for receiving the connecting shaft (43, 43a, 43b). The receiving spaces (16a, 16b, 44a', 44b') include inlets (160a, 160b, 440a', 440b') and locking areas (162a, 162b, 442a', 442b'). The connecting shaft (43, 43a, 43b, 19) is received in the receiving spaces (16a, 16b, 44a', 44b') through the inlets. The locking areas are used to lock the connecting shaft (43, 43a, 43b, 19). The locking area (162a, 162b, 442a', 442b') is located between the entrance (160a, 160b, 440a', 440b') of the receiving space and the second end (11) of the drive arm (1, 1'), the drive arm (1) including guide members (17a, 17b) including a main wall (170a, 170b) inclined toward the entrance (160a, 160b) of the receiving space (16a, 16b) that receives the connecting shaft.

2. The wiper system (100) according to claim 1, characterized in that, The guide members (17a, 17b) include support walls (171a, 171b) against which the connecting shaft is supported.

3. The wiper system (100) according to claim 1, characterized in that, The drive arm (1) includes a low wall (18) for fixing the connector in place.

4. The wiper system (100) according to any one of claims 1-3, characterized in that, The drive arm (1, 1') does not have a stable disengagement position.

5. A method for removing a wiper (3) from a drive arm (1, 1') in a wiper system (100) according to any one of the preceding claims, the method comprising the steps of: The connecting shafts (43, 43a, 43b, 19) are moved relative to the receiving space (16a, 16b, 44a', 44b') along the guide members (17, 45') of the wiper system (100).

Images