WO2018055855A1 - Structure de montage de siège - Google Patents

Structure de montage de siège Download PDF

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Publication number
WO2018055855A1
WO2018055855A1 PCT/JP2017/022458 JP2017022458W WO2018055855A1 WO 2018055855 A1 WO2018055855 A1 WO 2018055855A1 JP 2017022458 W JP2017022458 W JP 2017022458W WO 2018055855 A1 WO2018055855 A1 WO 2018055855A1
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WO
WIPO (PCT)
Prior art keywords
cross member
seat
bracket
mounting structure
vehicle
Prior art date
Application number
PCT/JP2017/022458
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English (en)
Japanese (ja)
Inventor
貴之 相馬
Original Assignee
本田技研工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to CN201780057545.8A priority Critical patent/CN109789898B/zh
Publication of WO2018055855A1 publication Critical patent/WO2018055855A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units

Definitions

  • the present invention relates to a seat mounting structure that increases the seat support rigidity of a vehicle floor to improve the ride comfort of an occupant.
  • a vehicle floor seat mounting structure of the kind described above for example, there is a vehicle body lower structure described in Patent Document 1.
  • a cross member extending in the vehicle width direction is provided between the tunnel portion at the top of the floor panel and the side sill to which the center pillar is coupled.
  • the load from the side sill is supported by the frame member at the lower part of the floor panel via the outer side in the vehicle width direction of the high-strength cross member.
  • a passenger seat is supported at both ends of the cross member via a seat mounting bracket (also referred to as a bracket).
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a seat mounting structure capable of enhancing the seat support rigidity of the vehicle floor and improving the ride comfort of the occupant.
  • the present invention provides a floor panel disposed between a tunnel portion and a side sill, a cross member extending in the vehicle width direction along the floor panel, and the cross member.
  • a first bracket for seat attachment provided at an end portion of the tunnel portion side, and a second bracket for seat attachment provided at an end portion of the cross member on the side sill side, and the floor panel includes: Projecting downward from the tunnel portion and the side sill, the height of both end portions of the cross member is formed higher than the height of the central portion of the cross member, and the both end portions are coupled to the first and second brackets. It is characterized by being.
  • the present invention it is possible to obtain a seat mounting structure that increases the seat support rigidity of the vehicle floor and improves the ride comfort of the occupant.
  • FIG. 1 is a perspective view showing a vehicle floor seat mounting structure according to an embodiment of the present invention. It is a perspective view which shows the seat attachment structure of the vehicle left side of this embodiment.
  • FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. It is a perspective view which shows the attachment structure of the tunnel part side sheet
  • FIG. 3 It is a perspective view of a bracket when the side sill side seat mounting bracket is cut in the vehicle front-rear direction at the center position of the seat rail mounting nut. It is a perspective view which shows the structure of a seat rail fixing
  • Embodiments of the present invention will be described in detail with reference to FIGS.
  • front and rear indicates the vehicle longitudinal direction
  • outside and center indicate the vehicle width outward direction
  • vehicle width center direction indicates the vertical vertical direction.
  • the seat mounting structure for the floor of the vehicle 10 includes a tunnel portion 12 that extends in the vehicle longitudinal direction on the floor panel 11 at the center position in the vehicle width direction, and a longitudinal direction at lower positions on both sides of the vehicle. Front and rear cross members 14 and 15 extending in the vehicle width direction are provided in parallel with the side sill 13 extending in the direction of the vehicle. Further, in the seat mounting structure, a tunnel portion side seat mounting bracket (also referred to as a bracket) 16 and a side sill side seat mounting bracket (also referred to as a bracket) 17 are disposed at both ends of the rear cross member 15. The occupant seat 1 is supported.
  • seat mounting bracket 16 comprises the 1st bracket of a claim.
  • the side sill side seat mounting bracket 16 constitutes the second bracket described in the claims.
  • the tunnel portion 12 has a convex cross-sectional shape, and has a shape in which left and right inclined side surfaces 12a and an upper surface 12b between the side surfaces 12a are integrated.
  • an elongated plate-like floor frame 18 extending in the vehicle front-rear direction is disposed at an intermediate position between the tunnel portion 12 and the side sill 13.
  • the floor frame 18 is disposed so as to cross under the front cross member 14 (for example, orthogonal) and cross over the rear cross member 15 (for example, orthogonal).
  • FIG. 3 is a cross-sectional view taken along line AA along the cross member 15 at the rear of FIG.
  • the floor panel 11 is located on the vehicle lower side than the tunnel portion 12 and the side sill 13 between the lower end of the side surface 12 a of the tunnel portion 12 and the inner lower member 13 a extending horizontally of the side sill 13. It is arranged in a shape that protrudes in a gentle curve.
  • an inner upper member 13 b is disposed upright.
  • the cross member 15 extends on the floor panel 11 in the vehicle width direction along the floor panel 11, and both extended end portions 15 a and 15 b are joined to brackets 16 and 17 on both sides. .
  • the heights H1 and H2 of both end portions 15a and 15b of the cross member 15 are higher than the height H3 of the central portion 15c, so that the coupling area to the brackets 16 and 17 on both sides can be increased. Yes.
  • the brackets 16 and 17 on both sides have the same shape, and the front flange FFb, the front surface Fb, the top surface, as shown in FIG. 4A showing the tunnel side seat mounting bracket 16 and FIG. 5A showing the side sill side seat mounting bracket 17.
  • Ub, rear surface Bb (FIG. 6), and rear flange BFb (FIG. 6) are integrally formed to form a cross-sectional hat shape (FIG. 6).
  • Both end portions 15a and 15b of the rear cross member 15 have the same shape, and FIG. 4B shows the end portion 15a on the tunnel portion 12 side, and FIG. 5B shows the end portion 15b on the side sill 13 side.
  • the cross-sectional hat shape (FIG. 6) which integrally provided the flange FFk, the front surface Fk, the upper surface Uk, the rear surface Bk (FIG. 6), and the rear flange BFk is comprised.
  • the brackets 16 and 17 on both sides of the shape and the both end portions 15a and 15b of the cross member 15 are connected to the end portions 15a of the cross member 15 inside the bracket 16 (or 17).
  • (Or 15b) is housed, and the front flanges (FFb, FFk), the front surfaces (Fb, Fk), the rear surfaces (Bb, Bk), and the rear flanges (BFb, BFk) are overlapped and joined. .
  • the front surface Fk and the rear surface Bk of the one end portion 15a of the cross member 15 that is higher than the central portion 15c are coupled to the front surface Fb and the rear surface Bb of one bracket 16
  • the front surface Fk and the rear surface Bk of the other end 15b of the other bracket 17 are coupled to the front surface Fb and the rear surface Bb of the other bracket 17.
  • step 11 ⁇ / b> D (see FIG. 3) that is recessed downward on the floor panel 11 below the position where the bracket 16 is disposed, Since the front and rear surfaces of the end 15a of the cross member 15 and the bracket 16 are coupled to each other at the position, they can be coupled to each other over a wide area.
  • the step 11D is provided to form a positioning hole in the floor panel 11.
  • the bracket 16 on the tunnel portion 12 side protrudes from the upper surface Ub and is connected to the side surface 12a of the tunnel portion 12, and the bracket 16 on the side of the tunnel portion 12 is protruded from the front surface Fb and connected to the side surface 12b.
  • a side flange SFf and a rear side flange SFk protruding from the rear surface Bb and coupled to the side surface 12b are provided.
  • the bracket 17 on the side sill 13 side protrudes from the upper surface Ub and is coupled to the side sill 13, and the front side flange SFf is projected from the front surface Fb and coupled to the side sill 13.
  • a rear side flange SFk protruding from the rear surface Bb and coupled to the side sill 13.
  • the brackets 16 and 17 on both sides are provided with the front flange FFb, the front surface Fb, the upper surface Ub, the rear surface Bb, and the rear flange BFb shown in FIGS. 4A and 5B, as well as the front surface Fb, the upper surface Ub, and the rear surface Bb.
  • Side surfaces Sb that are connected to and extend are formed.
  • the side surface Sb extends gently in the longitudinal direction of the cross member 15, and a side flange SFb is provided on the tip side.
  • the side flange SFb of the tunnel portion side seat mounting bracket 16 is coupled to the upper surface position of the cross member 15 that is separated from the end surface 15t of the cross member 15 by a predetermined length D1 outward in the vehicle width direction. By joining in such a distant position, the joining strength of the bracket 16 to the cross member 15 increases.
  • the side flange SFb of the side sill side seat mounting bracket 17 may also be configured.
  • FIG. 7 is a perspective view of the bracket 17 when the bracket 17 on the side sill 13 side is cut in the vehicle front-rear direction at the center position of a seat rail mounting nut (also referred to as a nut) 19f.
  • the bracket 17 (or 16) includes a seat rail fixing portion 19 shown in FIG.
  • the seat rail fixing portion 19 includes a plane portion 19b having a through hole 19a formed at the approximate center, a base portion 19e formed integrally with a load transmitting portion 19c and a positioning claw portion 19d, and a seat rail mounting nut. (Also referred to as a nut) 19f.
  • the load transmitting portion 19c is a portion that is bent and extends to the rear side (or front side) with a predetermined width from one end of the flat portion 19b.
  • the positioning claw portion 19d is a portion that is bent at a predetermined width from the other end portion of the flat portion 19b and extends in the side sill 13 side direction.
  • the seat rail fixing portion 19 is coupled to the inside of the bracket 17 as shown in FIG. Specifically, the flat surface portion 19b of the seat rail fixing portion 19 is coupled to the back surface of the upper surface Ub of the bracket 17, the load transmitting portion 19c is coupled to the rear surface of the bracket 17, and the positioning claw portion 19d is disposed on the side sill 13 side of the bracket 17. It extends and is arranged. Further, a nut 19f in which a nut hole is fitted in the through hole 19a of the flat portion 19b is fixed to the flat portion 19b. Further, as shown in FIG. 8, a tip 19d1 cut into a semicircular shape (concave) is formed at the tip of the positioning claw 19d, and the tip 19d1 penetrates the bracket 17 shown in FIG. It fits in the positioning hole 17c and is fixed with a screw (not shown). As shown in FIGS. 4A and 4B, the seat rail fixing portion 19 is similarly fixed to the inner side in the bracket 16 on the tunnel portion 12 side.
  • the through holes of the seat rail 1 a are the seat mounting holes h 1 and the through holes of the brackets 16 and 17.
  • the seat rail 1a is attached by being fitted to the nut 19f via 19a, the bolt 1B being screwed to the nut 19f.
  • the upper surface Ub on the side sill 13 side (vehicle side surface side) with respect to the seat rail fixing portion 19 that is the mounting portion (seat mounting portion) of the seat rail 1a is The inclined surface 17d is inclined downward toward the bottom.
  • the cross-sectional shape of the bracket 17 in the vehicle width direction is gradually increased in the direction from the side sill 13 toward the tunnel portion 12 until the cross-sectional area of the inclined surface 17d reaches the seat mounting portion. It has an expanding shape.
  • the rear cross member 15 has a concave upper surface at the center as indicated by reference numeral 15d in FIG.
  • a cross frame (for example, orthogonal shape) floor frame 18 is disposed (see FIG. 2) and coupled to the recessed portion 15d.
  • FIG. 10 is a cross-sectional view of the vicinity of the center member 15c of the cross member 15 and the floor frame 18 shown in FIG.
  • the above-described recessed portion 15 d of the cross member 15 includes a first recess 15 e in which a floor frame 18 that intersects the cross member 15 (for example, an orthogonal shape) is disposed, and a longitudinal direction of the floor frame 18.
  • a second recess 15f that accommodates a reinforcing bead 18a that is formed by being bent downward in a convex shape.
  • a rear cross member 15 having brackets 16 and 17 disposed on both sides is provided, but a cross member (referred to as a front cross member) having a larger cross-sectional shape than the rear cross member 15 is provided in front of this. 14.
  • the front cross member 14 is disposed in a crossing manner (for example, orthogonal) with the floor frame 18 along the floor panel 11, in other words, in parallel with the rear cross member 15, and both sides of the tunnel portion 12 and Bonded to the side sill 13.
  • the front cross member 14 includes seat rail fixing portions 14a and 14b provided with through holes for fixing the seat rail 1a (see FIG. 3) on both sides.
  • the seat mounting structure includes a floor panel 11 disposed between the tunnel portion 12 and the side sill 13, and a cross member extending in the vehicle width direction along the floor panel 11. 15 (see FIG. 2). Further, a first bracket for mounting a seat (tunnel portion side seat mounting bracket) 16 provided at an end portion of the cross member 15 on the tunnel portion 12 side, and a seat mounting portion provided on an end portion of the cross member 15 on the side sill 13 side.
  • the second bracket (side sill side seat mounting bracket) 17 is provided.
  • the floor panel 11 projects downward from the tunnel portion 12 and the side sill 13, and the cross member 15 has heights H1 and H2 of both end portions 15a and 15b higher than a height H3 of the central portion 15c of the cross member 15.
  • the both end portions 15a and 15b are coupled to the first and second brackets 16 and 17, respectively.
  • the heights H1 and H2 of both end portions 15a and 15b coupled to the first and second brackets 16 and 17 are higher than the height H3 of the central portion 15c.
  • the coupling rigidity can be increased. Therefore, even if the cross member 15 is disposed along the floor panel 11 projecting downward from the tunnel portion 12 and the side sill 13, the coupling rigidity to the first and second brackets 16 and 17 is increased. Even when a predetermined load or more is applied downward from the seat 1, the connecting portion of the cross member 15 with the first and second brackets 16 and 17 is not bent. For this reason, the seat support rigidity is increased and the ride comfort of the occupant on the seat 1 can be improved. Moreover, since the floor panel 11 protrudes below the tunnel portion 12 and the side sill 13, the air resistance when the vehicle 10 is traveling can be lowered.
  • both end portions 15a and 15b of the cross member 15 and brackets 16 and 17 on both sides are the front flanges FFk and FFb on the front side of the vehicle, the front surfaces Fk and Fb, and the upper surface of the vehicle.
  • This is a cross-sectional hat shape integrally including the upper surfaces Uk and Ub on the side, the rear surfaces Bk and Bb on the vehicle rear surface side, and the rear flanges BFk and BFb.
  • the front surface Fk and the rear surface Bk of both end portions 15a and 15b of the cross member 15 that are higher than the central portion 15c of the cross member 15 are coupled to the front surface Fb and the rear surface Bb of the brackets 16 and 17 on both sides.
  • the end 15a of the cross member 15 and the bracket 16 can be coupled in a wide area. As a result, the coupling rigidity can be increased.
  • both ends 15a and 15b can be combined at a high position with coupling rigidity, even if the floor panel 11 has a step 11D, the portion of the cross member 15 that crosses the step 11D can be formed in a smooth shape. Moreover, even if it is the floor panel 11 with the level
  • the end 15a of the cross member 15 and the bracket 16 are coupled with high coupling rigidity, even if a load exceeding a predetermined value is applied from the seat 1 to the lower side, the load is smoothly applied from the brackets 16 and 17 to the cross member 15. It can be transmitted and passenger comfort can be improved.
  • the brackets 16 and 17 (see FIGS. 4 and 5) on both sides have a front flange FFb, a front surface Fb, a rear surface Bb, and a rear flange BFb, and both end portions of the cross member 15.
  • the side flange SFb which is joined to the front surfaces Fb, the upper surface Ub, and the rear surface Bb of the brackets 16 and 17, and is connected to the front surfaces Fb of the brackets 16 and 17, is provided in advance in the longitudinal direction from the end surface 15t of the cross member 15 in advance. It was set as the structure couple
  • the side flange SFb of the side surface Sb of the brackets 16 and 17 in which the front flange FFb, the front surface Fb, the rear surface Bb, and the rear flange BFb are joined to both ends 15a and 15b of the cross member 15 Are joined to a position separated by a length D1 in the longitudinal direction.
  • the joining strength of the brackets 16 and 17 to the cross member 15 is increased, so that the strength and rigidity can be increased and the seat rail 1a can be supported.
  • the cross member 15 itself can be made thin to reduce the strength and rigidity, thereby reducing the weight.
  • the load can be smoothly transmitted from the brackets 16 and 17 to the cross member 15 to improve the ride comfort of the occupant. it can.
  • the brackets 16 and 17 on both sides are bent from the end portion of the base portion 19e having a nut 19f for attaching the seat rail 1a fixed to the upper surface and the front side or the rear surface of the brackets 16 and 17 It was set as the structure provided with the seat rail fixing
  • the seat rail fixing portion 19 shown in FIG. 8 has a distal end portion 19d1 which is bent and extended from an end portion at a position different from the end portion where the load transmitting portion 19c of the base portion 19e is bent, and is cut out in a concave shape.
  • a positioning claw portion 19d arranged at the position of a positioning hole 17c formed on the upper surface of the first or second bracket 16, 17 is further provided (see FIG. 7).
  • the seat rail fixing portion 19 when the seat rail fixing portion 19 is welded to the first and second brackets 16 and 17, the jig pin is attached to the distal end portion of the positioning claw portion 19d from the positioning hole 17c on the upper surface Ub of the brackets 16 and 17. Since it can be inserted and positioned, the seat rail fixing portion 19 having the load transmitting portion 19c can be accurately aligned and coupled to two different surfaces of the upper surface Ub and the front surface Fb or the rear surface Bb of the brackets 16 and 17.
  • the side sill side seat mounting bracket 17 has an upper surface Ub on the vehicle side surface lower than the seat rail 1 a mounting portion on which the seat rail fixing portion 19 is disposed, and is directed downward toward the vehicle side surface. It was set as the structure provided with the inclined surface 17d inclined to the side.
  • the cross-sectional shape of the bracket 17 in the vehicle width direction is the direction from the side sill 13 toward the tunnel portion 12
  • the cross-sectional area gradually increases until the cross-sectional area reaches the mounting portion of the seat rail 1 a. It becomes a shape that expands.
  • the cross-sectional area of the inclined surface 17d gradually increases and the cross-section coefficient increases, so that the force capable of dispersing the load at the time of a side collision increases.
  • a seat belt retracting pretensioner (pretensioner) 21 can be disposed on the upper surface Ub.
  • the pretensioner 21 can be arranged on the upper surface corresponding to the concave portion of the cross section, that is, the concave surface, the arrangement space can be reduced.
  • the pretensioner 21 is a mechanism equipped for the purpose of improving the protection performance of the occupant by removing the slack of the belt (webbing) of the seat belt at the time of the collision of the vehicle, so that the occupant is securely fixed to the seat before moving forward. It is.
  • a center pillar 23 is erected in the vicinity of the center of the side sill 13 in the vehicle longitudinal direction.
  • the cross member 15 is provided with a recessed portion 15d having a floor frame 18 intersecting with the cross member 15 on the upper surface, and the floor frame 18 is disposed in the recessed portion 15d. It was set as the structure.
  • the floor frame 18 is disposed and coupled to the recessed portion 15d of the cross member 15 in a cross shape, so that the raising member is disposed in the recessed area defined by the cross member 15 and the floor frame 18.
  • the floor of the passenger compartment can be formed flat. Further, since the cross member 15 in the vehicle width direction and the floor frame 18 in the front-rear direction are continuously joined in an intersecting manner, the support rigidity of the seat 1 can be increased and the front and side impact loads can be supported.
  • the recessed portion 15 d of the cross member 15 is convex along the longitudinal direction of the floor frame 18 and the first recess 15 e in which the floor frame 18 intersecting with the cross member 15 is disposed.
  • a second recess 15f that accommodates the reinforcing bead 18a formed by being bent into a shape, and the floor frame 18 is disposed in the first recess 15e with the reinforcing bead 18a accommodated in the second recess 15f. It was set as the composition.
  • the reinforcing bead 18a is formed on the floor frame 18, the reinforcing bead 18a is accommodated in the second recess 15f of the cross member 15, and the first recess 15e is crossed with the cross member 15. Since the floor frame 18 is disposed, the floor portion of the passenger compartment can be formed flat by disposing the raising member in the recessed area defined by the cross member 15 and the floor frame 18. Further, since the reinforcing frame 18a can be formed on the floor frame 18 at the intersection between the floor frame 18 and the cross member 15, the thickness of the floor frame 18 is reduced in order to form a flat floor portion of the passenger compartment. Even so, the strength and rigidity can be maintained.
  • a front cross member 14 is provided in front of the cross member 15 in parallel with the cross member 15 and has a larger cross-sectional shape than the cross member 15.
  • the front cross member 15 includes seat rail fixing portions 14a and 14b that fix the seat rail 1a on both sides.
  • the front cross member 14 having a cross-sectional shape larger than that of the cross member 15 is provided in front of the cross member 15 in the vehicle, the side collision performance is improved. Further, the rear cross member 15 can be reduced in weight because the cross-sectional shape can be reduced. For this reason, the front and rear cross members 14, 15 can be combined to achieve both weight reduction and improved side impact performance.
  • the present invention is not limited to this, and can be appropriately changed without departing from the gist of the present invention.

Abstract

L'objet de la présente invention est d'améliorer le confort de conduite d'un occupant en augmentant la rigidité de support de siège du plancher de véhicule. La structure de montage de siège comprend : un panneau de plancher (11) disposé entre une partie tunnel (12) et un seuil latéral (13) ; un élément transversal (15) s'étendant le long du panneau de plancher (11) dans la direction de la largeur du véhicule. La structure de montage de siège comprend en outre : un support de montage de siège côté partie tunnel (16) au niveau d'une partie d'extrémité de l'élément transversal (15) du côté de la partie tunnel (12) ; un support de montage de siège côté seuil latéral (17) au niveau d'une partie d'extrémité de l'élément transversal (15) du côté du seuil latéral (13). Le panneau de plancher (11) fait saillie vers le bas par rapport à la partie tunnel (12) et au seuil latéral (13). Les hauteurs des deux parties d'extrémité (15a, 15b) de l'élément transversal (15) sont établies de manière à être supérieures à celles d'une partie centrale (15c) de l'élément transversal (15). Les parties d'extrémité (15a, 15b) sont respectivement couplées aux premier et second supports (16, 17).
PCT/JP2017/022458 2016-09-21 2017-06-19 Structure de montage de siège WO2018055855A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201780057545.8A CN109789898B (zh) 2016-09-21 2017-06-19 座椅安装构造

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JP2016-183907 2016-09-21
JP2016183907 2016-09-21

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WO2018055855A1 true WO2018055855A1 (fr) 2018-03-29

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EP3581472A1 (fr) * 2018-06-15 2019-12-18 Mazda Motor Corporation Structure inférieure de carrosserie de véhicule et procédé de production d'une structure inférieure de carrosserie de véhicule
CN111216604A (zh) * 2018-11-27 2020-06-02 马自达汽车株式会社 车辆用座椅构造
CN111661171A (zh) * 2019-03-06 2020-09-15 马自达汽车株式会社 车辆的下部车身结构
US10967760B2 (en) 2019-04-04 2021-04-06 Volvo Car Corporation Lightweight c-ring crossmember and bracket assembly for a vehicle

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FR3138633A1 (fr) 2022-08-03 2024-02-09 Psa Automobiles Sa DISPOSITIF DE MONTAGE D’Un SIÈGE sur un plancher DE vÉhicule automobile

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CN111661171A (zh) * 2019-03-06 2020-09-15 马自达汽车株式会社 车辆的下部车身结构
EP3708468A1 (fr) * 2019-03-06 2020-09-16 Mazda Motor Corporation Structure inférieure de carrosserie de véhicule
CN111661171B (zh) * 2019-03-06 2023-03-10 马自达汽车株式会社 车辆的下部车身结构
US10967760B2 (en) 2019-04-04 2021-04-06 Volvo Car Corporation Lightweight c-ring crossmember and bracket assembly for a vehicle

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