WO2017022705A1 - Poutrelle de porte, structure de fixation de poutrelle de porte, et procédé de fabrication de poutrelle de porte - Google Patents

Poutrelle de porte, structure de fixation de poutrelle de porte, et procédé de fabrication de poutrelle de porte Download PDF

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Publication number
WO2017022705A1
WO2017022705A1 PCT/JP2016/072485 JP2016072485W WO2017022705A1 WO 2017022705 A1 WO2017022705 A1 WO 2017022705A1 JP 2016072485 W JP2016072485 W JP 2016072485W WO 2017022705 A1 WO2017022705 A1 WO 2017022705A1
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WO
WIPO (PCT)
Prior art keywords
door beam
flange
outer flange
webs
door
Prior art date
Application number
PCT/JP2016/072485
Other languages
English (en)
Japanese (ja)
Inventor
真吾 下赤
成一 橋本
恒武 津吉
Original Assignee
株式会社神戸製鋼所
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
Priority claimed from JP2016088540A external-priority patent/JP6157682B2/ja
Application filed by 株式会社神戸製鋼所 filed Critical 株式会社神戸製鋼所
Priority to CN201680044727.7A priority Critical patent/CN107921848B/zh
Priority to US15/750,639 priority patent/US10486511B2/en
Publication of WO2017022705A1 publication Critical patent/WO2017022705A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads

Definitions

  • Patent Document 1 the end of a door beam made of an aluminum alloy extruded profile is crushed, a pair of webs are buckled outward, a bolt hole is formed in the center in the width direction of the crushed portion, and the inner panel It is described that a bolt is attached to the mounting portion.
  • the crushing process is performed from the outer flange side toward the inner flange side.
  • Patent Document 2 when the end portion of the door beam made of an aluminum alloy extruded profile is crushed, the pair of webs are previously set on the outer side or the outer side so that the pair of webs are symmetrically buckled outwardly or inwardly. It is described to bend or bend inside, or to form a recess on the inside or outside of the web. In the example shown in FIG. 5 of Patent Document 2, the crushing process is performed from the outer flange side and the inner flange side toward the center of both flanges.
  • Patent Document 4 describes that in addition to an outer flange and an inner flange, the end portion of a door beam made of an aluminum alloy profile (extruded profile) having an intermediate flange between both flanges is subjected to crushing. The crushing process is performed from the outer flange side toward the inner flange side (see FIG. 3).
  • the inner flange of the plastic working part is located closer to the outer flange side than the original position by crushing, so even a door beam having a larger height W in the vehicle width direction than the conventional one, Easy to store in the limited storage space inside the door. Further, since the height W of the door beam in the vehicle width direction can be increased, the absorbed energy at the time of collision can be increased.
  • the top view which shows the attachment structure when installing the door beam which carried out the crushing process toward the outer flange side from the inner flange side at the edge part in the storage space in the door of a vehicle (between an outer panel and an inner panel). Conventional door beam mounting structure with no crushing at the end.
  • the top view which shows the attachment structure of the conventional door beam which gave the crushing process to the edge part.
  • the door beam according to the present invention is made of an aluminum alloy extruded shape, and FIGS. 1A and 2A show examples of the cross-sectional shape and the planar shape of the aluminum alloy extruded shape before crushing (as extruded).
  • This door beam 1 (aluminum alloy extruded profile) is composed of an outer flange 2 having a uniform thickness, an inner flange 3, and a pair of webs 4 and 5 that connect both flanges 2 and 3, and has a substantially symmetrical shape. is doing.
  • the angle formed by the outer flange 2 (tangent 6) and the webs 4 and 5 at the inner corner of the portion where the outer flange 2 and the webs 4 and 5 are connected is defined as ⁇ 1. Further, the angle formed by the outer flange 2 (tangent 6) and the webs 4 and 5 at the outer corner of the same location is defined as ⁇ 2. These angles ⁇ 1 and ⁇ 2 have a relationship of ⁇ 1> ⁇ 2.
  • One or both ends of the door beam 1 are crushed in the height direction of the webs 4 and 5.
  • the end of the door beam is crushed by, for example, sandwiching the upper and lower molds 7 and 8 each having a flat pressure surface
  • the outer flange 2 is pressurized at the beginning of the crushing process, and the curvature starts to decrease.
  • the angles ⁇ 1 and ⁇ 2 do not change much. For this reason, the force which pushes the webs 4 and 5 outward acts on the door beam 1, and the webs 4 and 5 buckle outward (bending deformation).
  • the outer flange 2 after the crushing process has a lower curvature than the initial curvature K (before the crushing process) or is flattened.
  • the crushing process is performed in the height direction (vehicle body width direction) of the webs 4 and 5 from the inner flange 3 side toward the outer flange 2 side.
  • the height (the dimension in the height direction of the webs 4, 5) of the portion where the crushing process has been performed (the dimension in the height direction of the webs 4, 5) is smaller than the height of the door beam 1 in the part other than the plastic processing part 9.
  • the inner flange 3 moves toward the outer flange 2 side by the same distance as the crushing amount (crushing height) H by the crushing process, and the original position ( It is located at a position closer to the outer flange 2 than the position in the height direction of the webs 4 and 5 before crushing.
  • the outer flange 2 has a curvature lower than the initial curvature K (before crushing) or is flattened in the plastic working portion 9, but does not substantially move in the height direction and is positioned at the original position. (The original height is maintained. In other words, the position in the height direction of the webs 4 and 5 does not change before and after crushing).
  • FIGS. 2B to 2D of Patent Document 2 can be given.
  • the inner side surfaces of both webs are formed perpendicular to both flanges, and the outer side surfaces project in the middle in the height direction, where the webs are thickened in the width direction.
  • the outer surfaces of both webs are formed perpendicular to both flanges, the inner surface is retracted toward the center in the height direction, and the web is made thinner toward the center.
  • FIG. 2 (d) the inner and outer surfaces of both webs are perpendicular to both flanges, but a cut-out recess is formed on the inner surface at the center in the height direction, which is thin.
  • FIG. 4A and 4B show still another door beam according to the present invention.
  • This door beam is made of an aluminum alloy extruded shape
  • FIG. 4A shows a planar shape and a cross-sectional shape of the aluminum alloy extruded shape before crushing (as extruded).
  • the door beam 11 (aluminum alloy extruded profile) is composed of a flat outer flange 2, an inner flange 3, and a pair of webs 4 and 5 that connect the flanges 2 and 3 with a uniform thickness. It has a symmetrical shape.
  • the crushing process is performed in the height direction of the door beam 11 (aluminum alloy extruded profile) from the inner flange 3 side toward the outer flange 2 side.
  • the webs 4 and 5 are buckled outward (bending deformation).
  • the inner flange 3 moves toward the outer flange 2 side by the same distance as the crushing amount (crushing height) H by the crushing process, It is located at a position closer to the outer flange 2 side than the position.
  • the outer flange 2 does not substantially move in the height direction in the plastic working portion 9 and is located at the original position (maintaining the original height).
  • FIG. 5 shows a door beam according to the present invention installed in a door of a vehicle.
  • 12 is an outer panel
  • 13 is an inner panel
  • 21 is a door beam fixed to the inner panel 13.
  • the door beam 21 is crushed at both ends from the inner flange 3 side toward the outer flange 2 side.
  • the inner flange 3 of the door beam 21 moves to the outer flange 2 side by the same distance as the amount of crushing (crushing height) in the crushing portion (plastic processing portion), and the outer flange 3 is moved from the original position to the outer flange 2 side. It is located near the flange 2 side.
  • the door beam 21 shown in FIG. 5 is crushed at both ends so that the height in the vehicle width direction is small, and even if the space of the mounting portion in the door is small, there is no problem in mounting to the inner panel 13. Moreover, although the center part (other than both ends) is large in the vehicle width direction, since it protrudes only inside the vehicle width direction, it can be accommodated in the space 15 on the inner panel 13 side without hindrance. Thus, the door beam 21 can be installed in a limited space in the door even if the height W in the vehicle width direction is large. As a result, the energy absorption amount of the door beam 21 can be increased. On the other hand, if the energy absorption amount is the same, the weight can be reduced as compared with the conventional door beam (see FIGS. 6A and 6B).
  • the door beam 21 shown in FIG. 5 is a bracketless door beam, but the present invention can also be applied to a door beam with a bracket (a type that is fixed to the inner panel via a bracket).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne une poutrelle de porte (1) comprenant : une bride extérieure (2) et une bride intérieure (3); et une pièce usinée en matière plastique (9), comprenant un élément extrudé en alliage d'aluminium doté d'une paire de bandes (4, 5) reliant la bride extérieure (2) et la bride intérieure (3), la pièce usinée en matière plastique (9) étant écrasée dans le sens de la hauteur des bandes (4, 5) au niveau de l'extrémité dans la direction longitudinale. Dans la pièce usinée en matière plastique (9), les bandes (4, 5) sont enchâssées sur le côté extérieur. De même, dans la pièce usinée en matière plastique (9), la bride extérieure (2) demeure dans sa position d'origine sans se déplacer sensiblement, mais la bride intérieure (3) se déplace d'une distance qui est la même que l'ampleur d'écrasement H résultant du processus d'écrasement, jusqu'à une position plus près du côté de la bride extérieure (3) que sa position d'origine.
PCT/JP2016/072485 2015-08-06 2016-08-01 Poutrelle de porte, structure de fixation de poutrelle de porte, et procédé de fabrication de poutrelle de porte WO2017022705A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680044727.7A CN107921848B (zh) 2015-08-06 2016-08-01 车门防撞梁、车门防撞梁的安装结构以及车门防撞梁的制造方法
US15/750,639 US10486511B2 (en) 2015-08-06 2016-08-01 Door beam, door beam attachment structure, and method for manufacturing door beam

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2015156464 2015-08-06
JP2015-156464 2015-08-06
JP2016088540A JP6157682B2 (ja) 2015-08-06 2016-04-26 ドアビーム及びドアビームの取付構造
JP2016-088540 2016-04-26

Publications (1)

Publication Number Publication Date
WO2017022705A1 true WO2017022705A1 (fr) 2017-02-09

Family

ID=57943183

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/072485 WO2017022705A1 (fr) 2015-08-06 2016-08-01 Poutrelle de porte, structure de fixation de poutrelle de porte, et procédé de fabrication de poutrelle de porte

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WO (1) WO2017022705A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001294042A (ja) * 2000-04-14 2001-10-23 Kyoei Kogyo Kk 自動車ドア用サイドインパクトバー
JP2003118367A (ja) * 2001-10-18 2003-04-23 Kobe Steel Ltd ドアビーム用アルミニウム合金押出材
EP1792670A1 (fr) * 2005-12-05 2007-06-06 Wagon Automotive GmbH Procédé de fabrication d'un profil métallique allongé et profil métallique allongé pour un élément de la carrosserie d'un véhicule

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001294042A (ja) * 2000-04-14 2001-10-23 Kyoei Kogyo Kk 自動車ドア用サイドインパクトバー
JP2003118367A (ja) * 2001-10-18 2003-04-23 Kobe Steel Ltd ドアビーム用アルミニウム合金押出材
EP1792670A1 (fr) * 2005-12-05 2007-06-06 Wagon Automotive GmbH Procédé de fabrication d'un profil métallique allongé et profil métallique allongé pour un élément de la carrosserie d'un véhicule

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