WO2018212066A1 - Partie supérieure de montant pour automobile - Google Patents

Partie supérieure de montant pour automobile Download PDF

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Publication number
WO2018212066A1
WO2018212066A1 PCT/JP2018/018127 JP2018018127W WO2018212066A1 WO 2018212066 A1 WO2018212066 A1 WO 2018212066A1 JP 2018018127 W JP2018018127 W JP 2018018127W WO 2018212066 A1 WO2018212066 A1 WO 2018212066A1
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WO
WIPO (PCT)
Prior art keywords
pillar
upper portion
flange
vehicle
pillar upper
Prior art date
Application number
PCT/JP2018/018127
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English (en)
Japanese (ja)
Inventor
理生 鈴森
Original Assignee
豊田鉄工株式会社
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 豊田鉄工株式会社 filed Critical 豊田鉄工株式会社
Publication of WO2018212066A1 publication Critical patent/WO2018212066A1/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
    • B62D25/04—Door pillars ; windshield pillars

Definitions

  • the present invention relates to an automobile pillar. More specifically, the present invention relates to a structure of an upper part of a pillar that can ensure strength and rigidity while reducing the blind spot outside the vehicle as viewed from the driver's seat.
  • the pillars in the car body may interfere with the driver's visual inspection of passers-by.
  • a region outside the vehicle that is hidden behind the body such as a pillar and is not directly visible from the left or right eye is called a blind spot (see FIG. 5).
  • the blind spot is generated not only by the front pillar but also by the center pillar and the rear pillar, and these can be an obstacle when it is desired to visually confirm a pedestrian or another vehicle on the side or rear.
  • Japanese Patent Application Laid-Open No. 2008-006836 describes a front pillar of a small truck having a narrow width when viewed by a driver while maintaining rigidity.
  • Japanese Unexamined Patent Publication No. 2016-159786 describes a vehicle front pillar that improves the driver's field of view and has sufficient bending strength.
  • Japanese Patent Application Laid-Open No. 2000-351387 discloses a vehicle body structure that can improve the rigidity of the front side surface of the vehicle body against an impact load from the front or side of the vehicle body.
  • the pillar's cross-sectional area is also reduced, and the pillar's rigidity is reduced.
  • the strength and rigidity of the pillar are increased by using a high-strength material or filling a foam material, the cost increases. Therefore, it is desired to secure the strength and rigidity of the pillar while reducing the blind spot outside the vehicle as viewed from the driver's seat.
  • One aspect of the present invention is an upper part of a pillar of an automobile, and includes a structural member having a closed cross section in which a plurality of constituent members are combined via joints extending in the longitudinal direction, and the joints of the structural members are provided on the outside of the vehicle.
  • An outer covering member that covers the surface is disposed.
  • each of the plurality of constituent members has an outer flange that protrudes outward from the vehicle, and the outer flanges are joined together to form the joint portion. It enters the inside of the covering member.
  • the plurality of constituent members are two members, each having an inner flange that protrudes inward of the vehicle on the diagonal side of the structural member with respect to the outer flange, and the inner flanges are joined together. Yes.
  • the surface formed by the outer flange and the surface formed by the inner flange form an angle of 25 to 40 degrees with respect to the vertical surface.
  • the surface formed by the outer flange and the inner flange of each component is substantially parallel.
  • the surfaces formed by the outer flange and the inner flange of each component are displaced from each other.
  • each of the two components has a hat-shaped cross section.
  • the width can be reduced without reducing the cross-sectional area of the upper part of the pillar. Is good.
  • FIG. 2 is a cross-sectional view taken along line BB in FIG. 1 of the front pillar as one embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the conventional front pillar taken along line BB in FIG.
  • FIG. 3 is a cross-sectional view taken along line AA of FIG. 1 of the front pillar of the embodiment of FIG. 2 for explaining a blind spot when the driver looks outside the vehicle.
  • FIG. 4 is a cross-sectional view taken along line AA of FIG. 1 of the conventional front pillar of FIG. 3 for explaining a blind spot when the driver looks outside the vehicle.
  • the present invention is generally directed to a pillar that constitutes a body frame of an automobile and supports a roof.
  • the pillar is preferably a front pillar (A pillar) on the front side of the front door, but may be a center pillar (B pillar) or a rear pillar (C pillar).
  • FIG. 1 shows a front pillar 10 on the right side of a right-hand drive vehicle as one embodiment.
  • the front pillar 10 is divided into a pillar upper portion 12 between the windshield 50 (front glass) and the front door glass (see FIG. 2), and a pillar lower portion 14 continuous downward therefrom.
  • the pillar lower portion 14 extends in a substantially vertical direction, but the extending direction of the pillar upper portion 12 forms various angles with respect to the vertical direction according to the vehicle type in accordance with the inclination angle of the windshield 50.
  • a horizontal direction crossing the pillar upper portion 12 is defined as an X axis
  • a direction perpendicular to the longitudinal direction in a vertical plane including the longitudinal direction of the pillar upper portion 12 is defined as a Z axis.
  • the X axis is substantially in the width direction of the automobile.
  • a plane orthogonal to the pillar upper portion 12 (a plane including the cross section shown in FIGS. 2 and 3) is an XZ plane.
  • the pillar upper portion 12 includes a cylindrical metal structural member 20 having a closed cross section at the center.
  • the structural member 20 is configured by joining several longitudinal constituent members 22 and 24 having a predetermined thickness. Any of the constituent members 22 and 24 plays a role different from that of the conventional hinge reinforcement member (for example, the hinge reinforcement member 128 of FIG. 3) in the front pillar 10, but may be called hinge reinforcement depending on circumstances.
  • An outer covering member 30 is disposed outside the structural member 20 so as to cover a joint portion extending in the longitudinal direction. Since the central structural member 20 is mainly responsible for the rigidity and strength of the pillar, the outer covering member 30 can be made thinner than the structural member 20.
  • the pillar upper portion 12 is connected to the pillar lower portion 14 and the roof side portion (not shown) via the outer covering member 30.
  • the structural member 20 is preferably composed of two structural members 22 and 24.
  • the two components 22, 24 each have a grooved or hat-shaped cross section with a flange. With such a configuration, a closed cross-sectional structure can be easily formed.
  • the structural member 20 can be composed of three or more structural members.
  • the two component members 22 and 24 have outer flanges 22a and 24a that protrude toward the outside of the vehicle, respectively, and the outer flanges 22a and 24a are welded to form the above-described joint portion.
  • the outer covering member 30 has a shape having an inner portion 30a such as a groove-shaped cross section or a hat-shaped cross section, and the outer flanges 22a and 24a to which the constituent members 22 and 24 are joined enter the inner 30a of the outer covering member 30.
  • the outer covering member 30 can be fixed to the outer wall surfaces 22d and 24d of the constituent members 22 and 24 at both edges.
  • the two component members 22 and 24 have inner flanges 22b and 24b respectively protruding toward the inside of the vehicle, and the inner flanges 22b and 24b are also welded. Accordingly, the inner flanges 22b and 24b are arranged on the diagonal side of the structural member 20 with respect to the outer flanges 22a and 24a.
  • the inner flanges 22b and 24b also do not interfere with external visual recognition, and contribute to improving the bending rigidity of the pillar upper portion 12. Further, the inner flanges 22b and 24b and the outer flanges 22a and 24a can freely obtain necessary rigidity and strength by adjusting the protruding width.
  • FIG. 3 shows a cross section of an upper portion of a conventional pillar as disclosed in Japanese Patent Laid-Open No. 2016-159786.
  • the flanges of the outer member 130, the inner member 126, and the hinge reinforcement member 128 forming the upper part of the pillar are directed toward the windshield 150 and the front door glass 152, that is, toward the left and right as viewed from the direction of the driver's seat. It was sticking out.
  • the configuration of the embodiment of the present invention as shown in FIG. 2 can narrow the width of the flange of the structural member 20 without reducing the cross-sectional area of the pillar upper portion 12, and the visibility outside the vehicle is good.
  • the inventor conducted strength analysis on the upper part of each pillar of the configuration of the example and the conventional configuration.
  • the structural member 20 composed of the two structural members 22 and 24 of FIG. 2 is analyzed, and for the conventional structure, the closed cross-sectional structure 120 composed of the inner member 126 and the hinge reinforcement member 128 of FIG.
  • the cross-sectional shape of each member shown in FIGS. 2 and 3 was actually used. Further, since the area of the closed cross section has a correlation with the strength, the area was made equal between the example and the prior art to make the conditions equal.
  • the bending rigidity of the upper portion of the pillar can be improved by about 4 times compared to the conventional case by adopting the cross-sectional shape of the pillar upper portion 12 of the embodiment.
  • the bending rigidity around the Z-axis of the pillar upper portion 12 is important, for example, for securing the occupant's living space when the automobile rolls over.
  • Arrows M Z in FIG. 1 is bent around the Z-axis, an arrow M X denotes the bending about the X axis.
  • the surfaces formed by the outer flanges 22a and 24a and the inner flanges 22b and 24b are at an angle of 25 to 40 degrees with respect to the vertical plane including the length direction of the pillar upper portion 12. Good.
  • the angles ⁇ and ⁇ formed by the mating surfaces of the outer flanges 22a and 24a and the mating surfaces of the inner flanges 22b and 24b with respect to the Z axis are 40 degrees.
  • the inventor further analyzed the strength of the upper portion 12 of the pillar by changing the angle of the flange surface variously while maintaining the cross-sectional shape shown in FIG.
  • the angle of the flange may be the same or changed between the left and right front pillars.
  • the preferable angle range can be applied to a rear pillar that is often inclined like the front pillar 10.
  • the component members 22 and 24 of the structural member 20 included in the pillar upper portion 12 and the outer covering member 30 can be usually manufactured by performing appropriate press molding from a steel plate.
  • the flanges of the plurality of constituent members 22 and 24 constituting the structural member 20 may be joined by any method as long as a welding method considered appropriate by those skilled in the art.
  • the flange edge is preferably continuously welded by plasma welding or laser welding.
  • any welding method may be used as long as it can be applied from the outer side of the structural member 20 having a closed cross section.
  • the width of the pillar upper portion 12 can be freely changed for each vehicle type. Specifically, as shown in FIG. 4, in order to reduce the blind spot S as it moves away from the pillar, the width of the pillar upper portion 12 when viewed from the driver's seat is set to at least the width of the human eyes E. It needs to be narrower than the interval (which is considered to be roughly constant).
  • the width of the pillar upper portion 12 is preferably set so that at least one eye E can see one point outside the vehicle at a certain distance from the driver (each part of the pedestrian or another vehicle).
  • the width of the pillar upper portion 112 is widened to obtain a required strength, and the blind spot S tends to increase as the distance increases.
  • a garnish 40 can be attached to the pillar upper portion 12 as an interior material inside the structural member 20. Since the garnish 40 is usually opaque, it is preferable to prevent further blind spots along the bottom surfaces 22c and 24c of the components 22 and 24 having a hat-shaped cross section as much as possible. As an example, the garnish 40 may have a narrow U-shaped cross section as shown in FIG. Further, a windshield 50 is fixed to the pillar upper portion 12 along the constituent member 22 on the front side of the structural member 20. A resin cover 42 can be attached to the pillar upper portion 12 as an exterior material further outside the outer covering member 30. The side edge of the windshield 50 is covered with the resin cover 42.
  • a weather strip 44 for preventing rainwater from entering along the rear component 24 of the structural member 20 is attached to the pillar upper portion 12.
  • the front door glass 52 or the sash is sealed by the weather strip 44. It contacts the pillar upper part 12 in the state.
  • the airbag 60 can be accommodated or the wire harness 70 can be routed.
  • the inner flanges 22b and 24b are shifted laterally with respect to the outer flanges 22a and 24a (for example, closer to the front structural member 22 as shown in FIG. 2), so that the garnish 40 is not increased without increasing the width of the pillar upper portion 12. It is also possible to secure a sufficient storage space for the airbag 60 inside.
  • the airbag 60 and the wire harness 70 may be fix to this extension part by extending inner flange 22b, 24b of one or both component members more than the width
  • the inner flange 22 b of the front component 22 is extended beyond the inner flange 24 b of the rear component 24. 2 and 3, the chain lines indicating the weather strips 44 and 144, the airbags 60 and 160, and the wire harnesses 70 and 170 describe only rough positions, and do not represent actual shapes.
  • the pillar upper portion 12 may include a reinforcing member for enhancing rigidity and strength as necessary in the whole or a part of the longitudinal direction.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

La présente invention concerne une partie supérieure de montant (12) destinée à une automobile et pourvue d'un élément de structure (20) qui présente une section transversale fermée et dans lequel une pluralité d'éléments constitutifs (22, 24) sont assemblés par l'intermédiaire d'un joint s'étendant dans une direction longitudinale. Un élément de revêtement externe (30) destiné à recouvrir le joint de l'élément de structure est disposé sur le côté externe de la partie supérieure de montant (12), qui fait face à l'extérieur de l'automobile. Dans un mode de réalisation, la pluralité d'éléments constitutifs ont chacun une bride externe (22a, 24a) faisant saillie vers l'extérieur de l'automobile. Les brides externes sont jointes l'une à l'autre pour former le joint. La bride externe de chacun des éléments constitutifs s'étend vers l'intérieur (30a) de l'élément de revêtement externe.
PCT/JP2018/018127 2017-05-19 2018-05-10 Partie supérieure de montant pour automobile WO2018212066A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017099600A JP6661572B2 (ja) 2017-05-19 2017-05-19 自動車のピラー上部
JP2017-099600 2017-05-19

Publications (1)

Publication Number Publication Date
WO2018212066A1 true WO2018212066A1 (fr) 2018-11-22

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PCT/JP2018/018127 WO2018212066A1 (fr) 2017-05-19 2018-05-10 Partie supérieure de montant pour automobile

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JP (1) JP6661572B2 (fr)
WO (1) WO2018212066A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950874U (ja) * 1982-09-28 1984-04-04 本田技研工業株式会社 車両のフロントピラ−構造
JP2006182092A (ja) * 2004-12-27 2006-07-13 Honda Motor Co Ltd 車両のフロントピラー構造
JP2008006836A (ja) * 2006-06-27 2008-01-17 Hino Motors Ltd 車両の前部構造
JP2011245928A (ja) * 2010-05-25 2011-12-08 Toyota Motor Corp 車両のフロントピラー構造

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950874U (ja) * 1982-09-28 1984-04-04 本田技研工業株式会社 車両のフロントピラ−構造
JP2006182092A (ja) * 2004-12-27 2006-07-13 Honda Motor Co Ltd 車両のフロントピラー構造
JP2008006836A (ja) * 2006-06-27 2008-01-17 Hino Motors Ltd 車両の前部構造
JP2011245928A (ja) * 2010-05-25 2011-12-08 Toyota Motor Corp 車両のフロントピラー構造

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Publication number Publication date
JP2018192974A (ja) 2018-12-06
JP6661572B2 (ja) 2020-03-11

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