FR3142159A1 - Front structure of motor vehicle with windshield wiper support - Google Patents

Abstract

The invention proposes a structure (12) of a motor vehicle, said structure at least partially delimiting a passenger compartment (14), a front compartment (16) in front of the passenger compartment; the front compartment having a side area (36) extending longitudinally; the structure comprising a suspension bracket (38), a wiper bracket (40) with a central body (42) attached to the suspension bracket. The side area comprises a transverse bearing surface (46), the wiper support comprising a fixing blade (50) which extends vertically from the central body; said fixing blade being fixed to the transverse support surface of the lateral zone. Figure to be published with the abstract: Figure 3

Description

Front structure of motor vehicle with windshield wiper support

The invention relates to the dynamic rigidity of a motor vehicle structure. The invention proposes a motor vehicle structure with a window wiper support. The invention also relates to a motor vehicle.

In order to maintain visibility through the windshield in the event of precipitation, a motor vehicle includes a windshield wiper system. This system includes a motor driving windshield wiper blades. This dedicated engine is fixed to the body of the motor vehicle using a specific support; usually called a windshield wiper bracket. The windshield wiper support is connected to and forms an integral part of the structure of the motor vehicle.

A motor vehicle structure commonly includes fixing areas for the front axle suspensions. In particular, the structure has suspension cups. These suspension cups form reinforced support zones for the springs and damping devices which communicate road shocks to the entire structure. To the extent that these suspension cups support the motor vehicle, they tend to come closer to each other in a curve; phenomenon which is countered by the integration of an anti-reconciliation bar.

Such a strut bar; also called spill bar; extends horizontally and transversely. Its ends are fixed to the suspension cups; always in order to benefit from a reinforced attachment point. Thus, the phenomena of torsion of the structure are limited.

The dynamic behavior of the motor vehicle is optimized since the chassis becomes firmer; which contributes to driving pleasure in curves. As a corollary, this brings a gain in terms of perceived quality.

Document US9446797B2 discloses an automobile front structure aimed at improving the rigidity of the vehicle body by preventing upward movement of the suspension chapel. It consists of an anti-spill bar connecting the two suspension cups. It also includes a pair of right and left link brackets that connect the suspension brackets to the awning. However, the rigidity of such a structure remains limited; especially in curves.

The invention aims to respond to at least one of the problems or disadvantages encountered in the prior art. In particular, the invention aims to increase the rigidity of a motor vehicle structure. The invention also aims to optimize the dynamic rigidity and the number of elements of a motor vehicle structure.

According to a first aspect, the invention proposes a motor vehicle structure, said structure at least partially delimiting a passenger compartment, a front compartment in front of the passenger compartment; the front compartment having a lateral zone extending longitudinally; the structure comprising a suspension bracket, a wiper bracket with a central body attached to the suspension bracket; remarkable in that the lateral zone comprises a transverse support surface, the windshield wiper support comprising a fixing blade which extends vertically from the central body; said fixing blade being fixed to the transverse support surface of the lateral zone.

The invention equips the windshield wiper support with a vertical fixing blade bearing against the transverse support surface. Thus, the invention increases the support surface for the suspension support. Thus, the invention extends the force distribution zone, which reduces deformation of the structure.

It will be understood that the invention proposes a structure of a motor vehicle; the structure comprising: a front spar, a suspension bracket, a wiper bracket with a central body attached to the suspension bracket; remarkable in that the front spar has a vertical internal face, the windshield wiper support comprising a fixing blade bordering the central body; said fixing blade being fixed to the vertical internal face.

Preferably, the lateral zone comprises a front foot, the fixing blade being fixed to said front foot.

Preferably, the side zone includes a front passenger compartment reinforcement; the fixing blade being fixed to said passenger compartment front reinforcement.

Preferably, the lateral zone comprises a front wing reinforcement lining forming a cavity open laterally towards the inside, the fixing blade being fixed in said cavity.

Preferably, the reinforcing lining comprises an internal edge covering the windshield wiper support.

Preferably, the windshield wiper support comprises at least one stiffening groove extending from the suspension support to the fixing blade.

Preferably, the at least one stiffening groove is inclined relative to a longitudinal direction of the motor vehicle at an angle of between 30° and 60°.

Preferably, the structure comprises a strut bar which extends transversely and which is fixed to the suspension support and to the windshield wiper support.

Preferably, the strut bar extends transversely from the windshield wiper support.

Preferably the fixing blade is longitudinally and/or transversely at a distance from the anti-reconciliation bar.

Preferably, the fixing blade extends longitudinally over at least half of the central body,

Preferably, the fixing blade extends longitudinally over the entire central body.

Preferably, the structure comprises a transverse wall between the front compartment and the passenger compartment, the windshield wiper support further comprises a rear fixing flange extending vertically and fixed to the transverse wall, the central body comprising a separation between the fixing blade and the rear fixing flange.

Preferably, the transverse support surface is a vertical fixing surface.

Preferably, the fixing blade is a fixing flange.

Preferably, the fixing blade extends vertically and longitudinally.

Preferably, the transverse support surface extends vertically and longitudinally.

Preferably, the suspension support is a suspension fixing support.

Preferably, the structure comprises fixing means connecting the suspension support, the strut bar and the windshield wiper support.

According to another aspect, the invention proposes a motor vehicle structure, said structure at least partially delimiting a front compartment which has a lateral zone extending longitudinally; the structure including a strut bar, a wiper bracket with a central body attached to the strut bar; remarkable in that the lateral zone comprises a transverse support surface, the windshield wiper support comprising a fixing blade which extends vertically from the central body; said fixing blade being fixed to the transverse support surface of the lateral zone

According to another aspect, the invention proposes a motor vehicle structure, said structure at least partially delimiting a passenger compartment and a front compartment, in front of the passenger compartment; the structure comprising a suspension bracket, a wiper bracket with a central body attached to the suspension bracket; the front compartment comprising a side element transversely delimiting the front compartment; remarkable in that the side element comprises a fixing surface, the windshield wiper support comprising a fixing blade which extends inclined relative to the central body; said fixing blade being fixed to the fixing surface of the lateral element.

Preferably, the side element extends longitudinally along the front compartment.

According to another aspect, the invention proposes a motor vehicle comprising a structure, remarkable in that the structure conforms to the invention; preferably the motor vehicle comprises a windshield wiper motor fixed to the windshield wiper support.

The invention will be well understood and other aspects and advantages will appear clearly on reading the description which follows, given with reference to the appended figures and listed below.

There is a side view of a motor vehicle according to the invention.

There is a top view of a half of a motor vehicle structure according to the invention.

There is an enlargement of a structure on a motor vehicle windshield wiper support according to the invention.

In the following description, the term “include” is synonymous with “include” and is not restrictive in that it authorizes the presence of other elements in the structure or motor vehicle to which it relates. It is understood that the term “understand” includes the terms “consist of”. The terms “external” and “internal” will respectively designate what is oriented towards the exterior of the vehicle and towards the interior of the vehicle.

In this description, the term “longitudinal”, the term “longitudinal”, the term “transverse”, and the term “transversely” are used according to the reference of the vehicle. The term “longitudinal” corresponds to the main direction of movement of the vehicle. The term “transverse” corresponds to a direction perpendicular to the main direction of movement of the vehicle. The term “front” refers to the main direction of movement of the vehicle. The term “rear” refers to the opposite of the front of the vehicle.

The X axis represents the longitudinal direction, the Y axis represents the transverse direction, and the Z axis represents the vertical direction. These three axes define a trihedron whose orientation is preserved throughout the figures.

In this description, the value ranges include the limits which delimit them.

In this description, the technical characteristics are defined in the mounting configuration of the structure, respectively of the vehicle, unless the contrary is explicitly mentioned.

Through the description, the different figures use the same reference signs to designate identical or similar entities.

There represents a motor vehicle 10 according to the invention. The motor vehicle 10 comprises energy storage means and at least one motor (not shown) adapted to drive said motor vehicle 10.

The motor vehicle 10 comprises a structure 12. The structure 12 forms the body of the vehicle. The structure 12 can be a main structure in the sense that it extends substantially over the entire length and width of the motor vehicle 10. It can include bodywork portions. The organs are mounted on the structure. The engine, axles, suspension systems, steering system are mounted on it.

The structure 12 comprises an assembly of stamped sheets fixed to each other, for example by welding. Alternatively, the structure is an assembly of tubes connected to each other, for example so as to form a trellis.

The structure 12 at least partially delimits several compartments of the motor vehicle 10, including the passenger compartment 14 intended to accommodate passengers (not shown), a rear compartment and a front compartment 16. The front compartment 16 is arranged in front of the passenger compartment 14. The front compartment 16 is commonly an engine compartment or a cargo compartment. The front compartment 16 houses a powertrain, electric or thermal. The rear compartment is commonly a cargo compartment, or alternatively an engine compartment.

The structure 12 comprises several structuring bodies. These bodies can be hollow bodies. The structure 12 has at least one front pillar 18, also called pillar “A”. Each front pillar 18 is in front of the passenger compartment 14. The front pillars 18 delimit the windshield and support the roof of the motor vehicle 10.

The structure 12 also has at least one spar 20; in this case two spars 20. The spars 20 form the base of the motor vehicle 10. They extend longitudinally between the front axle and the rear axle. The spars 20 may be central spars, extending between the axles of the motor vehicle. The beams 20 can be lateral beams in the sense that they are transversely on the sides of the structure 12.

The structure 12 comprises a front leg 22. Each front leg 22 is in front of the passenger compartment 14. Each front leg 22 forms a front side door fixing support 24. More precisely, each front side door 24 is connected by hinges (not shown) to the associated front foot 22. Each front pillar 22 forms hinge fixing pillar. Each front pillar 22 can be extended thanks to a spar 20 in the lower part. In the upper part, each front pillar 22 can be extended by one of the front pillars 18. Each front leg 22 forms a hollow body. It can be formed, laterally, of an internal element and an external element (not shown). The internal element and the external element can each comprise a sheet metal stamped in the transverse direction of the motor vehicle 10.

The structure 12 also has at least one front reinforcement 26 of the passenger compartment 14; in this case two front reinforcements 26 of passenger compartment 14. Each front reinforcement 26 forms a structural reinforcement 12 which protects the passenger compartment 14. In the event of a side collision, the front reinforcement 26 provides physical protection.

On each side, a front wing 28 covers the front reinforcement 26 of the passenger compartment 14 and at least part of the front pillar 22. The front wing 28 delimits the associated wheel arch and partially forms the body of the motor vehicle 10. front wing 28 extends over the entire length of the front compartment 16.

There exposes a right front part of a structure 12 of a motor vehicle 10. The motor vehicle may correspond to that presented in relation to the . The exterior bodywork is not shown for the sake of clarity; as is the optional powertrain.

The structure 12 comprises a reinforcing lining 30. The reinforcing lining 30 is capable of supporting and stiffening the front wing (visible in ). Its surface corresponds to that of the front wing in order to maintain it over its entire extent. Their contours coincide. The reinforcing lining 30 extends longitudinally along the front compartment 16. It delimits the front compartment 16 transversely. The reinforcing lining 30 is fixed in front of the front pillar 22. It is covered by the front reinforcement 26 of the passenger compartment 14 The reinforcing lining 30 extends in front of the front reinforcement 26.

The structure 12 comprises a transverse wall 32 between the front compartment 16 and the passenger compartment 14. The transverse wall 32 is also called the front apron. The transverse wall 32 extends vertically. It may include several elements including a lower apron, an upper apron and an upper crosspiece 34. The upper crosspiece 34 can be at the lower base of the windshield. It can form the front edge of the dashboard.

The front compartment 16 has a lateral zone 36 extending longitudinally. The side zone 36 may be an assembly zone. It can border the front compartment 16.

The structure 16 comprises a suspension support 38. The suspension support 38 is capable of resting on a suspension system (not shown). The suspension support 38 generally forms a concave cup with a hollow facing downwards. The suspension support 38 has a central orifice 39 for mounting a device damping oscillations of a suspension arm. The suspension support 38 has fixing holes around the central hole 39 in order to connect a helical spring of the suspension system. The suspension support 38 is thicker than the reinforcement liner 30.

The structure 16 includes a wiper support 40. The wiper support 40 comprises a central body 42 fixed to the suspension support 40. The wiper support 40 can be a support for fixing a windshield wiper system (not shown), or even a mounting plate. The windshield wiper system comprises a windshield wiper motor 44. The windshield wiper motor 44 is capable of driving a windshield wiper blade (not shown) against the windshield in order to scrape it. the surface.

The reinforcing liner 30 includes an internal edge 48 covering the wiper support 40. The internal edge 48 is a transversely internal edge. It can form a ledge. The internal edge 48 is an upper edge.

The lateral zone 36 comprises a transverse support surface 46, which is configured to exert support therein in the transverse direction. The transverse support surface 46 faces the interior of the front compartment 16. The transverse support surface 46 is generally perpendicular to the transverse direction. The transverse support surface 46 forms a mounting surface.

The wiper support 40 includes a fixing blade 50 which extends vertically from the central body 42. The fixing blade 50 extends longitudinally. It matches the transverse support surface 46. It runs along the internal edge 48; and overlaps the front foot 22, which allows transmission of forces. The fixing blade 50 is fixed to the transverse support surface 46 of the lateral zone 36, and is transverse support there. The spar 20 extends in the extension of the front leg 22. The windshield wiper support 40 is transversely at the level of the spar 20.

Since the windshield wiper support 40 is fixed to the suspension support 38, the fixing blade 50 contributes to distributing the forces coming from the suspension support 38 throughout the structure 12. This limits deformation of the assembly of structure 12. Thus, in circulation, the latter tends to deform less. The vehicle is more precise because its chassis is firmer. There is a gain in driving pleasure. Thus, the windshield wiper support 40 forms a mechanical link between the front leg 22 and the suspension support 38. From then on the latter abuts against a main part of the structure 12 since the front leg 22 forms a main body , guaranteeing the rigidity of the structure 12.

The side zone 36 includes a front leg 22. The fixing blade 50 is fixed to the front leg 22, for example by welding or by gluing. The reinforcing lining 30 is optionally inserted between the front leg 22 and the fixing blade 50. The fixing blade 50 can be fixed to the front leg 22 through the reinforcing lining 30 using triple thickness welding points. Alternatively, the reinforcing lining comprises a perforated area in which the fixing blade 50 is directly fixed to the front foot 22.

The lateral zone 36 includes a front reinforcement 26 of the passenger compartment 14. The fixing blade 50 of the windshield wiper support 40 is fixed to said front reinforcement 26, for example by welding or by gluing. The reinforcing lining 30 is optionally inserted between the front reinforcement 26 and the fixing blade 50. The fixing blade 50 can be fixed to the front leg 22 through the reinforcing lining 30 using triple thickness welding points. Alternatively, the reinforcing lining comprises a perforated zone in which the fixing blade 50 is directly fixed to the front foot 22. The connection of the fixing blade 50 to the front reinforcement 26 makes it possible to rest on a rigid structural body. Thus, the windshield wiper support 40 makes it possible to connect the suspension support 38 to an intrinsically rigid structural element.

The windshield wiper support 40 comprises at least one stiffening groove 52 extending from the suspension support 38 to the fixing blade 50. Each stiffening groove 52 can be formed on the central body 42. In this case, the windshield wiper support 40 comprises two stiffening grooves 52 which form an upper channel on the upper face, and a lower channel on the lower face of the central body 42. The stiffening grooves 52 are parallel.

At least one or each stiffening groove 52 is inclined relative to a longitudinal direction 54 of the motor vehicle by an angle 56 of between 30° and 60°. Angle 56 is optionally between 40° and 50°. Angle 56 is an acute angle. This range for the angle 56 makes it possible to stiffen the windshield wiper support 40 and to promote the transmission of forces from the suspension support 38 to the rear. Therefore the mechanical stresses transmitted by the suspension support 38 are distributed over an extended area; which limits the deformation of the structure 12 as a whole. Thus, when driving, the latter tends to twist less. Structure 12 provides more precision in curves thanks to its firmness.

The structure 12 includes an anti-reconciliation bar 58. The anti-reconciliation bar 58 extends transversely and horizontally. It crosses the front compartment 16. It runs along a transverse wall 32. The strut bar 58 is fixed to the suspension support 38 and to the windshield wiper support 40. The strut bar 58 can be fixed directly to the support of 'wiper 40; or indirectly via the suspension support 38.

The strut bar 58 extends transversely from the windshield wiper support 40. The fixing blade 50 is transversely spaced from the strut bar 58. The strut bar 58 is transversely opposite to the fixing blade 50. The central body 42 then forms an end piece between the anti-approaching bar 58 and the transverse support surface 46 to distribute the transverse forces. Optionally, the fixing blade 50 is longitudinally at a distance from the strut bar 58.

There is an isometric view of a structure 12 of a motor vehicle. The motor vehicle may correspond to that presented in relation to one of Figures 1 to 2. The front pillar 18 extends the front leg 22 vertically and rearwardly.

The front compartment 16 is delimited transversely by a lateral zone 36 extending longitudinally. The structure 12 is provided with a suspension support 38 and a windshield wiper support 40 both adjoining the reinforcing lining 30. The windshield wiper support 40 is behind the suspension support 38.

The lateral zone 36 comprises a transverse support surface 46. The transverse support surface 46 is transversely facing the wiper support 40, the suspension support 38 and the strut bar 58. The surface of transverse support 46 forms a vertical internal face. The reinforcing lining 30; or generally the lateral zone 36; forms a front spar.

The windshield wiper support 40 comprises a fixing blade 50 which extends vertically from the central body 42. The fixing blade 50 is linked to and in contact with the transverse support surface 46 of the lateral zone 36. external lateral surface of the fixing blade 50 is complementary to the transverse support surface 46. The fixing blade 50 extends longitudinally over at least half of the central body 42, preferably over the entire length of the central body 42. configuration of the fixing blade 50 reinforces the windshield wiper support 40 and therefore the structure 12. It increases the rigidity in the face of vibrations with a frequency between 50 Hz and 200 Hz. This vibration behavior improves the dynamic behavior of the motor vehicle .

The lateral zone 36 comprises a front leg 22. The windshield wiper support 40, in particular the fixing blade 50, is fixed to said front leg 22, and transversely resting on the upper apron 32, towards the front leg 22. The fixing blade 50 is fixed to the front reinforcement of the passenger compartment 14 through the reinforcing lining 30.

The side zone 36 includes a reinforcing lining 30 which forms a cavity 60. The cavity 60 is a side cavity open laterally towards the inside. The cavity 60 extends longitudinally along the suspension support 38 and the wiper support 40 which include side edges in the cavity 60. The fixing blade 50 is housed in the cavity 60; and fixed in said cavity 60. The cavity 60 is delimited by the internal edge 48 of the reinforcing lining 30. The internal edge 48 forms a generally horizontal rim, which covers the wiper support 40 and the suspension support 38 This arrangement improves compactness. Furthermore, the internal edge 48 stiffens the reinforcing lining 30; which is generally vertical.

The suspension bracket 38 is a suspension mounting bracket. The structure 12 comprises the strut bar 58 which extends transversely crossing the front compartment 16. The strut bar 58 is fixed to the suspension support 38. It can be transversely abutting against the suspension support 38 which presents a higher boss for this purpose. It can be longitudinally abutting against the windshield wiper support 40. These abutment assemblies promote the transmission of forces from the anti-reconciliation bar 58 towards the lateral zone 36. The anti-reconciliation bar 58 has a “shaped” profile. U” in order to optimize its rigidity. The fixing blade 50 is longitudinally and/or transversely at a distance from the anti-reconciliation bar 58.

The structure 12 is compartmentalized by the transverse wall 32 delimiting between the front compartment 16 and the passenger compartment 14. The windshield wiper support 40 further comprises a rear fixing flange 62. The rear fixing flange 62 extends transversally and vertically. It fits the transverse wall 32; for example the upper apron. The transverse wall 32 is fixed to the transverse wall 32; and is longitudinally supported against the transverse wall 32. This arrangement provides another path for distributing the forces towards the front leg 22. This increases the rigidity of the structure 12.

The central body 42 includes a separation 64 between the fixing blade 50 and the rear fixing flange 62. The fixing flange is generally perpendicular to the central body 42. The separation 64 facilitates the production of the windshield wiper support 40, thus than its fixation.

The windshield wiper support 40 has a central body 42 fixed to the suspension support 38. The stiffening grooves 52 pass through the central body 42. They have “U” profiles open towards the top or bottom. At least one stiffening groove 52 extends from the anti-approximation bar 58 to the fixing blade 50. The fixing blade 50 forms a fixing angle in elevation relative to the central body 42. The central body 42 is an element corrugated by its stiffening grooves 52 and delimited by the fixing blade 50 and the rear fixing flange 62.

The fixing blade 50 is a fixing flange. The fixing blade 50 extends vertically and longitudinally. The transverse support surface 46 extends vertically and longitudinally. The transverse support surface 46 is a vertical fixing surface.

The structure 12 comprises fixing means connecting the suspension support 38, the strut bar 58 and the windshield wiper support 40. These fixing means include a welding point or a fixing axis; like a vertical screw. The suspension support 38, the strut bar 58 and the windshield wiper support 40 form a stack in front of the windshield wiper support 40.

The structure is generally symmetrical. In particular, the structure includes two suspension supports connected by the strut bar in order to transmit forces from one side to the other. The structure may include two windshield wiper supports which are generally symmetrical; they may differ depending on a different arrangement of their fixing means.

Claims (10)

Structure (12) of a motor vehicle, said structure (12) at least partially delimiting a passenger compartment (14), a front compartment (16) in front of the passenger compartment (14); the front compartment (16) having a side zone (36) extending longitudinally; the structure (12) comprising a suspension bracket (38), a wiper bracket (40) with a central body (42) attached to the suspension bracket (38); characterized in that the lateral zone (36) comprises a transverse bearing surface (46), the windshield wiper support (40) comprising a fixing blade (50) which extends vertically from the central body ( 42); said fixing blade (50) being fixed to the transverse bearing surface (46) of the lateral zone (36). Structure (12) according to claim 1, characterized in that the lateral zone (36) comprises a front leg (22), the fixing blade (50) being fixed to said front leg (22). Structure (12) according to one of claims 1 to 2, characterized in that the lateral zone (36) comprises a front reinforcement (26) of the passenger compartment (14); the fixing blade (50) being fixed to said front reinforcement (26) of the passenger compartment (14). Structure (12) according to one of claims 1 to 3, characterized in that the lateral zone (36) comprises a reinforcing lining (30) of the front wing (28) forming a cavity (60) open laterally towards the interior, the fixing blade (50) being fixed in said cavity (60); preferably, the reinforcing lining (30) comprises an internal edge (48) covering the windshield wiper support (40). Structure (12) according to one of claims 1 to 4, characterized in that the windshield wiper support (40) comprises at least one stiffening groove (52) extending from the suspension support (38) to the fixing blade (50); preferably the at least one stiffening groove (52) is inclined relative to a longitudinal direction (54) of the motor vehicle by an angle (56) of between 30° and 60°. Structure (12) according to one of claims 1 to 5, characterized in that the structure (12) comprises a strut bar (58) which extends transversely and which is fixed to the suspension support (38) and to the windshield wiper support (40). Structure (12) according to claim 6, characterized in that the anti-approach bar (58) extends transversely from the windshield wiper support (40); preferably the fixing blade (50) is longitudinally and/or transversely at a distance from the anti-reconciliation bar (58). Structure (12) according to one of claims 1 to 7, characterized in that the fixing blade (50) extends longitudinally over at least half of the central body (42), preferably over the entire central body (42) . Structure (12) according to one of claims 1 to 8, characterized in that the structure (12) comprises a transverse wall (32) between the front compartment (16) and the passenger compartment (14), the wiper support -glass (40) further comprises a rear fixing flange (62) extending vertically and fixed to the transverse wall (32), the central body (42) comprising a separation (64) between the fixing blade (50) and the rear mounting flange (62). Motor vehicle (10) comprising a structure (12), characterized in that the structure (12) conforms to one of claims 1 to 9; preferably the motor vehicle (10) comprises a windshield wiper motor (44) fixed to the windshield wiper support (40).