WO2017138039A1 - 車両用緩衝部材 - Google Patents
車両用緩衝部材 Download PDFInfo
- Publication number
- WO2017138039A1 WO2017138039A1 PCT/JP2016/000701 JP2016000701W WO2017138039A1 WO 2017138039 A1 WO2017138039 A1 WO 2017138039A1 JP 2016000701 W JP2016000701 W JP 2016000701W WO 2017138039 A1 WO2017138039 A1 WO 2017138039A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vertical wall
- vehicle
- groove
- ribs
- substrate portion
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
-
- 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
- B60R21/04—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
- B60R2013/0287—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners integrating other functions or accessories
-
- 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
- B60R21/04—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
- B60R2021/0414—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings using energy absorbing ribs
-
- 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
- B60R21/04—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
- B60R2021/0442—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings associated with the roof panel
Definitions
- the present invention relates to a shock absorbing member for a vehicle.
- a buffer member (vehicle) is provided in the space between the vehicle body panel and the trim material.
- a structure in which a buffer member is disposed is known.
- Patent Document 1 discloses a structure that absorbs collision energy when a buffer member is crushed and deformed between a vehicle body panel and a trim material.
- the buffer member is configured by standing a plurality of ribs on a substrate having a flat plate shape so as to be orthogonal to each other.
- Patent Document 2 discloses a structure in which a plurality of reinforcing ribs are projected in a predetermined range on the back side of the body of the vehicle body panel.
- the plurality of reinforcing ribs are arranged so as to intersect with each other to form a plurality of honeycomb shapes.
- the height of the buffer member (the length in the standing direction of the rib) is also set small. For this reason, the rigidity of a buffer member becomes high and it becomes difficult to generate
- the rib vertical wall located on the peripheral edge on the substrate overlaps with the rib located on the inner side of the vertical wall. There is an inconvenience that the remaining crushing occurs. As a result, there is an inconvenience that the absorption efficiency of the input energy is lowered.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a vehicular cushioning member that is excellent in absorption efficiency of input energy.
- the present invention provides a shock absorber for a vehicle, which is disposed on the back surface of a trim member that covers a vehicle body panel and absorbs input energy by being crushed and deformed by receiving an input load.
- a shock absorber for a vehicle which is disposed on the back surface of a trim member that covers a vehicle body panel and absorbs input energy by being crushed and deformed by receiving an input load.
- -Like substrate part vertical wall connected in a flange shape at the edge of the substrate part, and standing in parallel with the substrate part, each extending in a direction intersecting the vertical wall and connected to the vertical wall
- a plurality of ribs, and a weakened portion that is set between a pair of adjacent ribs and the strength of the vertical wall is locally weakened.
- the weakened portion includes a groove provided in the vertical wall, and a substrate portion. And a slit portion perforated.
- the groove portion includes a first groove portion continuous in the thickness direction of the vertical wall at the upper end portion of the vertical wall, a second groove portion communicating with the first groove portion and continuous in the height direction of the vertical wall. It is preferable that the slit portion is provided in contact with the vertical wall and has an opening shape that is horizontally long along the extending direction of the vertical wall.
- the substrate portion has a substantially rectangular shape that is horizontally long in the vehicle left-right direction, the vertical wall is provided over the entire periphery of the edge of the substrate portion, and the vertical walls are formed at the four corners of the substrate portion. Correspondingly, it is preferable that the vertical wall is partially cut away.
- the groove portion is set on the vertical wall, when a load is applied, the vertical wall is cracked by being induced by the fragile groove portion.
- the substrate portion is provided with a slit portion and the base end portion of the vertical wall is not continuous with the substrate portion, cracks are easily generated along the height direction of the vertical wall, and cracks are generated. It becomes easy. Thereby, crushing of a vertical wall is performed orderly and input energy can be absorbed effectively.
- FIG. 1 is a plan view schematically showing a roof trim in an example in which the buffer pad according to the present embodiment is applied to a roof portion.
- FIG. 2 is a cross-sectional view schematically showing a main part of the roof portion.
- FIG. 5 is a cross-sectional view taken along line AA of the buffer pad shown in FIG. 6 is an enlarged perspective view showing an end portion of the buffer pad shown in FIG.
- FIG. 1 is a plan view schematically showing a roof trim 4 in an example in which the buffer pad 10 according to the present embodiment is applied to the roof portion 1
- FIG. 2 is a schematic view of the main part of the roof portion 1.
- FIG. 3 is a perspective view schematically showing the buffer pad 10.
- the roof portion 1 includes a roof panel 2 as a vehicle body panel, and a roof trim 4 is mounted on the inner surface side of the roof panel 2 so as to be close to the roof panel 2.
- the roof trim 4 is composed of, for example, a laminated body including a foam sheet having an appropriate thickness, a reinforcing sheet laminated on both side surfaces thereof to ensure rigidity, and a skin material serving as a design surface exposed in the vehicle interior. ing.
- the roof trim 4 has moderate cushioning properties, heat insulation properties, and sound absorption properties due to the laminated structure.
- a shock absorbing pad 10 having a high impact absorbing performance is disposed at a required position of the roof trim 4, for example, a position on the front side of the accommodating portion 4a that accommodates a sun visor (not shown).
- the buffer pad 10 absorbs the input energy by receiving the input load F input to the roof trim 4 and crushing and deforming.
- the absorption characteristic of the input energy by the buffer pad 10 is uniquely determined by the deformation stroke and the deformation reaction force in the height direction of the buffer pad 10 (the vertical direction of vertical walls 12 and ribs 15 described later).
- the buffer pad 10 includes a substrate portion 11, vertical walls 12, and ribs 15, and is integrally formed by molding using an appropriate synthetic resin material (thermoplastic resin or the like).
- the substrate unit 11 is a flat base material, and in the present embodiment, has a substantially rectangular shape that is horizontally long in the vehicle left-right direction as compared to the vehicle front-rear direction.
- substrate part 11 can add an appropriate deformation
- the board part 11 is good also considering the shape along a vehicle left-right direction as circular arc shape.
- the vertical wall 12 is a member (rib) that is connected to the edge of the substrate portion 11 in a flange shape.
- the vertical wall 12 is provided over the entire periphery of the edge portion of the substrate portion 11, and a pair of first vertical walls 13 extending in the vehicle left-right direction and a pair of first vertical walls extending in the vehicle front-rear direction. It consists of two vertical walls 14. Since the buffer pad 10 is mounted in a narrow space between the roof panel 2 and the roof trim 4, the height of the vertical wall 12 is set in a range of approximately 4 mm to 7 mm.
- the rib 15 is erected in a range surrounded by the vertical wall 12 in the substrate portion 11.
- the ribs 15 include a rib (hereinafter referred to as “first rib” if necessary) 16 extending in the left-right direction of the vehicle and a plurality of ribs (hereinafter referred to as “second ribs” if necessary) extending in the vehicle front-rear direction.
- the ribs 16 and 17 are arranged in a lattice pattern. In the example shown in the present embodiment, the first rib 16 and the plurality of second ribs 17 intersect in an orthogonal state.
- the heights of the ribs 16 and 17 are set corresponding to the height of the vertical wall 12.
- the height of the vertical wall 12 and the rib 15 is the same in the vehicle left-right direction.
- appropriate modifications can be made according to the shape of the space.
- the vertical wall 12 and the rib 15 may have a shape in which the height gradually increases in the vehicle left-right direction.
- the buffer pad 10 having such a configuration includes three weak portions 20, 30, and 40 in which the strength of the vertical wall 12 or the rib 15 is locally weakened.
- FIG. 4 is an enlarged perspective view showing a main part of the buffer pad 10 shown in FIG. 3
- FIG. 5 is an AA sectional view of the buffer pad 10 shown in FIG.
- the 1st weak part 20 is set between a pair of adjacent 2nd ribs 17 so that the intensity
- the first fragile portions 20 are respectively provided between the adjacent second ribs 17, and each of the first fragile portions 20 includes a groove portion 21 and a slit portion 22.
- the groove portion 21 is provided in the first vertical wall 13, and the position thereof corresponds to the intermediate position between the pair of adjacent second ribs 17.
- the groove portion 21 communicates with the first groove portion 21a that is continuous in the thickness direction of the first vertical wall 13 at the tip portion 13a of the first vertical wall 13 and the height of the first vertical wall 13.
- the second groove portion 21b is linearly continuous in the direction.
- the individual groove portions 21a and 21b are set, for example, in a V shape, but may have other groove shapes.
- the second groove portion 21 b is set inside the first vertical wall 13. However, the second groove portion 21b may be set outside the first vertical wall 13.
- the slit portion 22 is perforated in the substrate portion 11, and the position thereof corresponds to the intermediate position between the pair of adjacent second ribs 17. Specifically, the slit portion 22 is provided in contact with the first vertical wall 13 and has an opening shape that is horizontally long along the extending direction of the first vertical wall 13. Due to the presence of the slit portion 22, the base end portion side of the first vertical wall 13 is present in a state separated from the substrate portion 11.
- FIG. 6 is an enlarged perspective view showing an end portion of the buffer pad 10 shown in FIG.
- the second fragile portion 30 is set to a corner portion of the vertical wall 12, that is, a continuous portion where the first vertical wall 13 and the second vertical wall 14 are connected so that the strength of the vertical wall 12 is weakened.
- the second fragile portion 30 is formed by cutting out a continuous portion (corner portion) between the first vertical wall 13 and the second vertical wall 14 and is set corresponding to the four corners of the substrate portion 11. Has been.
- the 3rd weak part 40 is set to the intersection of the grid
- inclined portions 16 a and 17 a that are inclined downward toward the intersections are set in the portions connected to the intersections in the ribs 16 and 17.
- the height h1 of the ribs 16 and 17 corresponding to the intersection is set lower than the height h2 of the ribs 16 and 17 in the general part.
- the plate thickness t1 of the ribs 16 and 17 corresponding to the intersection is set to be thinner than the plate thickness t2 of the ribs 16 and 17 of the general portion.
- the buffer pad 10 having such a configuration is disposed in a space between the roof panel 2 and the roof trim 4 with the longitudinal direction thereof aligned with the vehicle left-right direction. .
- the buffer pad 10 is attached to the roof trim 4 in a state where the substrate portion 11 is in contact with the back surface of the roof trim 4.
- the buffer pad 10 is arrange
- a method of attaching the buffer pad 10 to the roof trim 4 for example, a method of adhering to the roof trim 4 via a hot melt adhesive can be used. Further, from the viewpoint of preventing the generation of noise due to the buffer pad 10 coming into contact with the roof panel 2, a sheet such as a nonwoven fabric may be disposed at an appropriate location so as to cover the front end side of the vertical wall 12.
- the substrate portion 11 of the buffer pad 10 disposed on the back surface side of the roof trim 4 is formed. Receive the input load F. Thereby, when the buffer pad 10 moves to the roof panel 2 side, the leading ends of the vertical walls 12 and the ribs 15 abut against the roof panel 2, and a load F is applied to the vertical walls 12 and the ribs 15 along the height direction of the buffer pad 10. input.
- the 1st weak part 20 is each provided between the 2nd ribs 17 which adjoin and parallel. For this reason, when a crack occurs in one location of the first weakened portion 20 and the first vertical wall 13 is crushed at that location, this diffuses to the other first weakened portion 20 via the first vertical wall 13, Cracking of the first vertical wall 13 is promoted. Thereby, since crushing is performed in the 1st vertical wall 13 whole, input energy can be absorbed effectively.
- the crushing state of the buffer pad 10 can be controlled. Therefore, since it can suppress that the 1st vertical wall 13 and the rib 15 overlap at the time of crushing deformation
- the second weakened portion 30 is set in the buffer pad 10 by cutting out the corner portion of the vertical wall 12. Therefore, crushing deformation of the vertical wall 12 in the vicinity of the corner portion is facilitated, and crushing proceeds in all of the vertical wall 12. Thereby, input energy can be absorbed effectively.
- the third weakened portion 40 is set in the buffer pad 10 by setting the height h1 of the intersection of the ribs 16 and 17 to be lower than the height h2 of the general portion. For this reason, it becomes easy to generate
- the buffer pad 10 of the present embodiment has the first weakened portion 20 that is set between the pair of adjacent second ribs 17 and the strength of the first vertical wall 13 is locally weakened.
- the first fragile portion 20 includes a groove portion 21 provided in the first vertical wall 13 and a slit portion 22 drilled in the substrate portion 11.
- the first vertical wall 13 is cracked according to the fragile groove portion 21.
- the substrate portion 11 is provided with a slit portion 22, and the base end portion of the first vertical wall 13 is separated from the substrate portion 11.
- production of a crack becomes easy.
- the first vertical wall 13 is crushed in an orderly manner, and the input energy can be effectively absorbed.
- the groove portion 21 (the first groove portion 21a and the second groove portion 21b) and the slit portion 22 constituting the first fragile portion 20 are in a continuous state (a state where they are in contact with each other), the first vertical wall One end of the 13 groove portions 21 is not in contact with the substrate portion 11. Thereby, since the peripheral edge part of the groove part 21 of the 1st vertical wall 13 will be in a free state also with respect to the board
- the groove portion 21 is composed of a first groove portion 21a that is continuous in the thickness direction and a second groove portion 21b that is linearly continuous in the height direction.
- the 1st weak part 20 is set to the 1st vertical wall 13, you may set this with respect to the 1st rib 16 located between the adjacent 2nd ribs 17. FIG. .
- the first fragile portion 20 may be set on the second vertical wall 14. However, if the number of setting points of the first fragile portion 20 is increased, the rigidity of the entire cushioning pad 10 is reduced and the deformation reaction force of the cushioning pad 10 is also lowered. Therefore, the first fragile portion 20 according to a desired reaction force. Is preferably set.
- the third fragile portion 40 may be set at the connection point between the vertical wall 12 and the rib 15.
- the vehicle cushioning member is applied to the roof portion of the vehicle, but can be widely applied to the space between the vehicle body panel and the trim material.
- a vehicle structure including a vehicle cushioning member functions as part of the present invention.
Abstract
Description
2 ルーフパネル
4 ルートリム
10 緩衝パッド
11 基板部
12 縦壁
13 第1縦壁
14 第2縦壁
15 リブ
16 第1リブ
17 第2リブ
20 第1脆弱部
21 溝部
21a 第1溝部
21b 第2溝部
22 スリット部
30 第2脆弱部
40 第3脆弱部
Claims (3)
- 車体パネルを覆って装着されるトリム材の裏面に配置され、入力荷重を受けて圧潰変形することにより入力エネルギーを吸収する車両用緩衝部材において、
平板状の基板部と、
前記基板部の縁部にフランジ状に連設される縦壁と、
前記基板部に並列的に立設され、それぞれが前記縦壁と交差する方向に延在して前記縦壁に接続する複数のリブと、
隣り合う一対のリブの間に設定され、前記縦壁の強度が局所的に弱くなる脆弱部と、を有し、
前記脆弱部は、
前記縦壁に設けられた溝部と、
前記基板部に穿孔されたスリット部と、で構成されることを特徴とする車両用緩衝部材。 - 前記溝部は、
前記縦壁の上端部において当該縦壁の厚み方向に連続する第1溝部と、
前記第1溝部と連通し、前記縦壁の高さ方向に連続する第2溝部とで構成され、
前記スリット部は、
前記縦壁に接して設けられ、当該縦壁の延在方向に沿って横長となる開口形状を備える
ことを特徴とする請求項1に記載された車両用緩衝部材。 - 前記基板部は、車両左右方向に横長となる略矩形形状を有し、
前記縦壁は、前記基板部の縁部全周にわたって設けられており、
前記縦壁は、前記基板部の四隅に対応して、当該縦壁が部分的に切り欠かれていることを特徴とする請求項1に記載された車両用緩衝部材。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/762,161 US10479308B2 (en) | 2016-02-10 | 2016-02-10 | Damping member for vehicle |
PCT/JP2016/000701 WO2017138039A1 (ja) | 2016-02-10 | 2016-02-10 | 車両用緩衝部材 |
JP2017566235A JP6419364B2 (ja) | 2016-02-10 | 2016-02-10 | 車両用緩衝部材 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2016/000701 WO2017138039A1 (ja) | 2016-02-10 | 2016-02-10 | 車両用緩衝部材 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017138039A1 true WO2017138039A1 (ja) | 2017-08-17 |
Family
ID=59563789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/000701 WO2017138039A1 (ja) | 2016-02-10 | 2016-02-10 | 車両用緩衝部材 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10479308B2 (ja) |
JP (1) | JP6419364B2 (ja) |
WO (1) | WO2017138039A1 (ja) |
Citations (6)
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JPH0731432U (ja) * | 1993-12-02 | 1995-06-13 | 河西工業株式会社 | 自動車用内装部品 |
JPH0811542A (ja) * | 1994-07-01 | 1996-01-16 | Kasai Kogyo Co Ltd | 自動車用トリム |
JPH08132874A (ja) * | 1994-11-14 | 1996-05-28 | Inoac Corp | 車両用内装部材 |
JPH1170886A (ja) * | 1997-07-01 | 1999-03-16 | Ootsuka:Kk | 衝撃エネルギー吸収材及びその吸収構造 |
JP2002331896A (ja) * | 2001-05-07 | 2002-11-19 | Kasai Kogyo Co Ltd | 車両側部のエネルギ吸収装置 |
JP2009241692A (ja) * | 2008-03-31 | 2009-10-22 | Toyota Motor Corp | エアバッグ装置の車両搭載構造 |
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US5094775A (en) | 1989-03-22 | 1992-03-10 | Arco Chemical Technology, Inc. | Zeolite modified water-blown polyurethane foams |
US5934730A (en) | 1994-07-01 | 1999-08-10 | Nissan Motor Co., Ltd | Energy absorbing door panel |
JP2841165B2 (ja) * | 1994-08-30 | 1998-12-24 | 株式会社イノアックコーポレーション | 車両用内装部材 |
JP3186563B2 (ja) * | 1996-01-31 | 2001-07-11 | トヨタ自動車株式会社 | 衝撃エネルギー吸収部材 |
JP2004217107A (ja) | 2003-01-16 | 2004-08-05 | Kojima Press Co Ltd | 車両用衝撃吸収構造体 |
JP5125704B2 (ja) * | 2008-04-08 | 2013-01-23 | トヨタ紡織株式会社 | 側突用樹脂衝撃吸収体 |
US8029041B2 (en) * | 2008-04-12 | 2011-10-04 | Ford Global Technologies, Llc | Door trim-integrated pelvic impact energy-absorbing construction for vehicle |
US8152218B2 (en) * | 2008-05-13 | 2012-04-10 | Ford Global Technologies, Llc | Integral pelvic impact energy-absorbing pre-crush protective construction for vehicle door |
US8454053B2 (en) * | 2010-02-25 | 2013-06-04 | Ford Global Technologies, Llc | Energy absorbing structure for vehicle knee bolster cover |
IT1401982B1 (it) * | 2010-09-28 | 2013-08-28 | Tres Srl | Elemento ad assorbimento d'urto polimerico per un veicolo e struttura paraurti. |
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JP6119112B2 (ja) | 2012-05-16 | 2017-04-26 | トヨタ車体株式会社 | 車両用樹脂部品及びその射出成形方法 |
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-
2016
- 2016-02-10 WO PCT/JP2016/000701 patent/WO2017138039A1/ja active Application Filing
- 2016-02-10 JP JP2017566235A patent/JP6419364B2/ja not_active Expired - Fee Related
- 2016-02-10 US US15/762,161 patent/US10479308B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0731432U (ja) * | 1993-12-02 | 1995-06-13 | 河西工業株式会社 | 自動車用内装部品 |
JPH0811542A (ja) * | 1994-07-01 | 1996-01-16 | Kasai Kogyo Co Ltd | 自動車用トリム |
JPH08132874A (ja) * | 1994-11-14 | 1996-05-28 | Inoac Corp | 車両用内装部材 |
JPH1170886A (ja) * | 1997-07-01 | 1999-03-16 | Ootsuka:Kk | 衝撃エネルギー吸収材及びその吸収構造 |
JP2002331896A (ja) * | 2001-05-07 | 2002-11-19 | Kasai Kogyo Co Ltd | 車両側部のエネルギ吸収装置 |
JP2009241692A (ja) * | 2008-03-31 | 2009-10-22 | Toyota Motor Corp | エアバッグ装置の車両搭載構造 |
Also Published As
Publication number | Publication date |
---|---|
US20180272980A1 (en) | 2018-09-27 |
US10479308B2 (en) | 2019-11-19 |
JP6419364B2 (ja) | 2018-11-07 |
JPWO2017138039A1 (ja) | 2018-07-12 |
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