Motor vehicle seat mounting bracket that can be used in different versions of the vehicle series

Abstract

The invention relates to a motor vehicle seat mounting bracket (10), comprising: a fastening portion (12) intended to be fixed to a structural element (3) of a motor vehicle; a supporting portion (14), comprising two inclined walls (141, 142) with an L-shaped cross section, the first wall (141) having a first through opening (151) of a first shape, the second wall (142) having a second through opening (152) of a second shape and optionally a third through opening (153) of a third shape.

Description

Technical Field

[0001] The subject of the invention is a motor vehicle seat mounting bracket which can be used in different versions of a vehicle series. Background Art

[0002] Depending on the version, a motor vehicle can be equipped (particularly in the second row) with different seats, which can be fastened to the underframe structure in different ways. In practice, some seats are fastened by screw fastening, while others are fastened by engagement (or insertion into a slot), sometimes with indexing. It is therefore necessary to provide a mounting bracket specific to each seat fastening method.

[0003] Therefore, there is a need for a mounting bracket that is compatible with different fastening types. Summary of the invention

[0004] For this purpose, a first subject of the invention relates to a motor vehicle seat mounting bracket comprising:

[0005] a fastening portion intended to be fixed to a structural element of a motor vehicle, in particular an underbody structure or a part of the underbody structure;

[0006] - A support portion comprising two inclined walls with an L-shaped cross section, the first wall having a first through opening of a first shape, the second wall having a second through opening of a second shape and optionally a third through opening of a third shape.

[0007] Thus, by appropriately selecting the first, second and third shapes of the first, second and third openings, respectively, the mounting bracket can receive different fastening / indexing elements therein through these openings. Thus, it will be appreciated that a single mounting bracket is capable of receiving and fastening seats having different fastening elements.

[0008] The optional third opening may advantageously be located on the largest of the first and second walls.

[0009] Thus, advantageously, different shapes can be selected for the first shape, the second shape and the third shape of the first opening, the second opening and the optional third opening, respectively.Thus, each shape of the opening can be tailored to fit a specific fastening / indexing element.

[0010] Advantageously, the stent according to the invention may thus exhibit, alone or in combination:

[0011] - a first opening having a first parallelepiped shape;

[0012] - a second opening having a circular second shape;

[0013] - an optional third opening having a third parallelepiped shape.

[0014] Advantageously, the support portion may have a third wall and a fourth wall, each wall being connected to one side of the first wall and the second wall so as to form with the first wall and the second wall four faces defining a volume, the volume optionally being in the shape of a parallelepiped. This makes it possible to structurally reinforce the mounting bracket of the invention.

[0015] Advantageously, the fastening portion can have a plurality of fastening walls, a portion of which extends parallel or substantially parallel to the first wall, and another portion of which extends parallel or substantially parallel to the second wall, these fastening walls being intended to be pressed against the wall of the structural element of the motor vehicle. In particular, these fastening walls can be fixed to the third wall and the fourth wall of the supporting portion, other fastening walls being able to extend in a continuous manner with the first wall and the second wall.

[0016] Advantageously, the mounting bracket can be produced as a single piece. For example, the mounting bracket can be a cast or preferably stamped metal part.

[0017] The invention also relates to a motor vehicle underframe structure intended to receive a seat, to which at least two mounting brackets according to the invention, in particular two identical mounting brackets, are fastened. These mounting brackets can be fastened to the underframe structure by welding (when the mounting brackets and the underframe structure are made of metal), by screwing, by riveting or by a combination of these means.

[0018] Advantageously, for each mounting bracket, the first wall may extend horizontally or substantially horizontally, and the second wall may extend vertically or substantially vertically and perpendicularly or substantially perpendicularly to the longitudinal direction of the underframe structure, the first wall forming an upper wall of the mounting bracket. In particular, the first wall and the second wall may extend facing a wall of the underframe structure.

[0019] The invention also relates to a motor vehicle having an underbody structure according to the invention.

[0020] Finally, the invention relates to a family of motor vehicles of at least two types comprising an underframe structure according to the invention, each type of vehicle being equipped with a specific seat, the seating part of which is provided with at least two fastening elements, the fastening elements for the seat specific to one type of vehicle being different from the fastening elements for the seat specific to the other type of vehicle, each fastening element for fastening the seat of one type of vehicle co-operating with at least one opening in the same mounting bracket.

[0021] Thus, the same mounting bracket can be used to receive different fastening elements for both types of vehicles.

[0022] In particular, for the vehicle series according to the invention:

[0023] - a fastening element for a seat dedicated to one type of vehicle may have an engagement finger which is vertically inserted through a first opening in a horizontally or substantially horizontally positioned first wall of the mounting bracket, this engagement finger engaging with said first opening in order to fasten the seat;

[0024] - Another fastening element for a seat dedicated to another type of vehicle can have a tab that abuts against the first and second walls of the mounting bracket, this tab having an opening aligned with a second opening in the vertically or substantially vertically positioned second wall for the passage of a screw or the like, and the other fastening element can optionally have an indexing tab that is vertically inserted through a first opening in the horizontally or substantially horizontally positioned first wall of the mounting bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The invention will now be described with reference to the attached non-limiting drawings, in which:

[0026] [ Figure 1 ] Figure 1 A motor vehicle underframe structure is depicted which is equipped with two mounting brackets according to one embodiment of the invention.

[0027] [ Figure 2 ] Figure 2 Depicted is an enlarged view of a mounting bracket secured to a vehicle body underframe structure.

[0028] [ Figure 3 ] Figure 3 A first type of seat is depicted which is equipped with two fastening elements.

[0029] [ Figure 4 ] Figure 4 Describes the use Figure 3 An enlarged view of the fastening elements of the first type of seat.

[0030] [ Figure 5 ] Figure 5 A second type of seat is depicted which is equipped with two fastening elements.

[0031] [ Figure 6 ] Figure 6 Describes the use Figure 5 An enlarged view of the fastening elements of the second type of seat. DETAILED DESCRIPTION

[0032] In this specification, the terms "front", "rear", "upper" and "lower" refer to the front-to-rear direction of the vehicle when the mounting bracket, the underframe structure and the seat are mounted on the vehicle. The X-axis, Y-axis and Z-axis correspond to the longitudinal axis (from front to rear), the transverse axis and the vertical axis of the vehicle, respectively, the vehicle being located on the ground. Therefore, the vertical direction corresponds to the direction of gravity.

[0033] Substantially horizontal, longitudinal or vertical means a direction / plane which forms an angle of at most ±20°, or even at most 10° or at most 5° with the horizontal, longitudinal or vertical direction / plane.

[0034] Substantially parallel, perpendicular or at a right angle means a direction / angle that deviates from a parallel, perpendicular or at a right angle by at most ±20°, or even at most 10° or at most 5°.

[0035] Figure 1 A vehicle underbody structure 1 is depicted, which forms part of a vehicle series. Here, this underbody structure 1 has a rear floor 2 and transverse vertical walls 3, which are also referred to as seat support frames. This seat support frame 3 constitutes a structural element of the vehicle in the sense of the invention, as does the underbody structure.

[0036] The underframe structure 1 is equipped with two mounting brackets 10 for fastening seats, in this case, seats of the second row. These mounting brackets 10 are identical.

[0037] Reference Figure 2 , the mounting bracket 10 comprises:

[0038] - a fastening portion 12 fixed to the seat support frame 3;

[0039] A support portion 14 formed by two inclined walls 141 , 142 of L-shaped section, the first wall 141 having a first through opening 151 of a first shape, the second wall 142 having a second through opening 152 of a second shape and a third through opening 153 of a third shape.

[0040] Here, "the shape of an opening" means both the shape and the size of this opening. Thus, openings of different shapes may differ in their size as well as their shape.

[0041] Here, the first shape, the second shape and the third shape of the first opening, the second opening and the third opening 151 - 153 are respectively different in order to receive different fastening / indexing elements.

[0042] In the example, the first opening 151 and the third opening 153 have a parallelepiped shape. Here, the first opening 151 is rectangular, similar to a slot, while the third opening 153 is square in shape. The second opening 152 is circular in shape. Of course, the invention is not limited to any one particular shape of opening, and the shape of the opening can be selected according to the shape and size of the fastening / indexing element that the opening is intended to receive.

[0043] In the example depicted, the support portion 14 has a third wall 143 and a fourth wall 144, each of which is connected to one side of the first wall 141 and the second wall 142 so as to form with the first wall and the second wall four faces defining a volume, which in this case is of parallelepiped shape and is open on two of its faces.

[0044] The fastening portion 12 for its part has a plurality of fastening walls 121, 122, 123, 124, 125, a portion of which (the walls 123, 124) extend parallel or substantially parallel to the first wall 141, and another portion of which (the walls 121, 122, 125) extend parallel or substantially parallel to the second wall 142. Figure 2 As depicted in , these fastening walls press against walls 31, 32, 33 of a structural element of the motor vehicle, the seat support frame 3. These seat support frame walls 31-33 are connected in pairs and approximately perpendicular to each other so as to form a ledge 32 on which the mounting bracket 10 can rest vertically.

[0045] Here, the depicted mounting bracket 10 is secured to the vehicle underframe structure as follows:

[0046] - its first wall 141 extends horizontally or substantially horizontally;

[0047] - its second wall 142 extends vertically or substantially vertically and perpendicularly or substantially perpendicularly to the longitudinal direction of the underframe structure (corresponding to the longitudinal direction of the vehicle);

[0048] The first wall 141 forms the upper wall of the mounting bracket 10 .

[0049] Furthermore, the mounting bracket 10 rests vertically on the ledge of the structural element 3 (in this case, on its horizontal wall 32 ), and:

[0050] - the fastening walls 121 and 122 are pressed against and fixed to the vertical wall 31 of the structural element 3 ;

[0051] - the fastening walls 123 and 124 are pressed against and fixed to the horizontal wall 32; and

[0052] The fastening wall 125 , which here extends substantially in a continuous manner with the second wall 142 of the mounting bracket, bears against and is fixed to the vertical wall 33 .

[0053] The structural element 3 thus encloses the volume defined by the walls 141 - 144 of the mounting bracket, thereby increasing its stability.

[0054] The mounting bracket 10 may be fixed to the seat supporting frame 3 by welding, screwing, or riveting.

[0055] Thus, a single mounting bracket 10 can be used to secure different seats, as described below with reference to Figures 3 to 6 described.

[0056] Figure 3 A second row of seats 20 is depicted, in this case a bench seat with a seat part 22 and a backrest 24. The seat part 22 is equipped with two fastening elements 26 that are fastened to the vehicle underframe structure. These fastening elements 26 are identical and Figure 4 One of the fastening elements is depicted in FIG. For the seat type depicted, this fastening element 26 is provided through Figure 2 The depicted mounting bracket is in the form of a first opening 151 in the first wall 141 of the mounting bracket into which the engagement finger 27 is vertically inserted. Figure 2 141, wherein the first wall 141 of the mounting bracket is positioned horizontally or approximately horizontally in an upper position. In order to fasten the seat, the engagement finger 27 is shaped so as to engage with it when inserted into the first opening 151. For this purpose, in the example, the fastening element has inclined walls 28, the ends of which press against the bottom side of the first wall 141, the finger 27 being inside the volume defined by the walls 141-144.

[0057] Figure 5 Another second row of seats 200 is depicted, here similar to a bench seat, but with Figure 3 This seat 200 also has a seat part 222 and a backrest 224. The seat part 222 is equipped with two fastening elements 226 for fastening to the vehicle body underframe structure. These fastening elements 226 are identical and Figure 6 For the type of seat depicted, this fastening element 226 takes the form of a tab that presses against the first wall 141 and the second wall 142 of the mounting bracket 10, which is in the Figure 2 Thus, the fastening element 226 adopts a curved shape with a generally horizontal portion 227 and a generally vertical portion 228. This tab 226 also has an opening 229 aligned with the second opening 152 in the second wall 142 for the passage of a screw 230 or the like. In the example, the fastening element 226 also has an indexing tab 231 vertically inserted through the first opening 151 in the first wall 141 of the mounting bracket.

[0058] Of course, the invention is not limited to the fastening elements 26 and 226 described above by way of example. These elements may exhibit different shapes capable of cooperating with the mounting bracket according to the invention.

[0059] The third opening 153 described with reference to the figures can receive an indexing element for yet another type of fastening element (not depicted) or can even receive a fastening element. This third opening can be absent.

[0060] The seats 20 and 200 described above may be dedicated to two different types of vehicles in the same vehicle series. Therefore, it will be understood that the same mounting bracket according to the present invention can be used for different types of vehicles within the same series. These different types of vehicles may or may not use the same vehicle underframe structure.

[0061] The invention has been described with reference to a second row of seats of the bench seat type. However, the mounting bracket according to the invention can be used to fasten any type of seat, regardless of which row it is intended for. Thus, the mounting bracket can be positioned at any point on the underframe structure, and not only on the seat support frame 3 depicted in the drawings, but in particular at any point on the underframe structure that exhibits the required stability.

Claims

1. A vehicle underframe structure (1) intended to receive a motor vehicle seat, to which at least two mounting brackets (10) for the motor vehicle seats are fastened, each mounting bracket comprising: - a fastening portion (12) intended to be fixed to a structural element (3) of a motor vehicle; - a support portion (14) comprising two inclined walls (141, 142) having an L-shaped cross section, a first wall (141) of the two inclined walls having a first through opening (151) of a first shape, and a second wall (142) of the two inclined walls having a second through opening (152) of a second shape, The vehicle body underframe structure (1) comprises: - a first fastening element (26) for a first seat (20) dedicated to one type of vehicle, the first fastening element (26) having an engagement finger (27) which is vertically inserted through a first through-opening (151) in the first horizontally or substantially horizontally positioned wall (141) of the mounting bracket, the engagement finger (27) engaging with the first through-opening (151) in order to fasten the first seat; and / or - A second fastening element (226) for a second seat (200) dedicated to another type of vehicle, the second fastening element (226) having a tab which abuts against the first wall (141) and the second wall (142) of the mounting bracket and having an opening (229) aligned with a second through-opening (152) in the second wall positioned vertically or substantially vertically for the passage of a screw (230).

2. The vehicle underframe structure (1) according to claim 1, characterized in that: The second wall (142) also has a third through opening (153) of a third shape.

3. The vehicle underframe structure (1) according to claim 1, characterized in that: The first shape of the first through opening (151) is different from the second shape of the second through opening (152).

4. The vehicle underframe structure (1) according to claim 2, characterized in that: The third shape of the third through-opening (153) is different from the first shape of the first through-opening and the second shape of the second through-opening.

5. The vehicle underframe structure (1) according to any one of claims 1 to 4, characterized in that: The mounting bracket includes at least one of the following features: - the first through opening (151) has a first parallelepiped shape; The second through-opening (152) has a second circular shape.

6. The vehicle underframe structure (1) according to claim 2, characterized in that: The third through opening (153) has a third parallelepiped shape.

7. The vehicle underframe structure (1) according to any one of claims 1 to 4, characterized in that: The support portion (14) has a third wall (143) and a fourth wall (144), each of which is connected to one side of the first wall (141) and the second wall (142) so as to form four surfaces defining a volume with the first wall and the second wall.

8. The vehicle underframe structure (1) according to claim 7, characterized in that: This volume has the shape of a parallelepiped.

9. The vehicle underframe structure (1) according to any one of claims 1 to 4, characterized in that: The fastening portion (12) has a plurality of fastening walls (121-125), a portion (123, 124) of which extends parallel or substantially parallel to the first wall (141), and another portion (121, 122, 125) of which extends parallel or substantially parallel to the second wall (142), the fastening walls being intended to be pressed against a wall (31-33) of a structural element of the motor vehicle.

10. The vehicle underframe structure (1) according to any one of claims 1 to 4, characterized in that: Two identical mounting brackets are fastened to the underframe structure.

11. The vehicle underframe structure (1) according to claim 10, characterized in that: For each mounting bracket (10), the first wall (141) forms an upper wall of the mounting bracket.

12. A motor vehicle having a vehicle underframe structure (1) as claimed in any one of claims 1 to 11.

13. A series of at least two types of motor vehicles, comprising a vehicle underframe structure (1) as claimed in any one of claims 1 to 11, each type of vehicle being equipped with a specific seat (20, 200), the seating part (22, 222) of which is provided with at least two fastening elements (26, 226), a first fastening element (26) for a first seat (20) dedicated to one type of vehicle being different from a second fastening element (226) for a second seat (200) dedicated to another type of vehicle, each fastening element (26, 226) for fastening a seat of one type of vehicle cooperating with at least one opening in the same mounting bracket (10).

14. A series according to claim 13, characterized in that: The second fastening element has an indexing tab (231) which is vertically inserted through the first through-opening (151).

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