WO2011121919A1 - 自動車のフロントピラーとサイドシルとの結合部構造 - Google Patents
自動車のフロントピラーとサイドシルとの結合部構造 Download PDFInfo
- Publication number
- WO2011121919A1 WO2011121919A1 PCT/JP2011/001551 JP2011001551W WO2011121919A1 WO 2011121919 A1 WO2011121919 A1 WO 2011121919A1 JP 2011001551 W JP2011001551 W JP 2011001551W WO 2011121919 A1 WO2011121919 A1 WO 2011121919A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- front pillar
- side sill
- automobile
- extension
- reinforcement
- Prior art date
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Classifications
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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
- B62D25/02—Side panels
- B62D25/025—Side sills thereof
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
Definitions
- the present invention relates to a structure for connecting a front pillar and a side sill of an automobile, which is formed by connecting a lower end portion of a front pillar extending in the vertical direction of an automobile and a front end portion of a side sill extending in the longitudinal direction of the automobile.
- a structure for connecting a front pillar and a side sill of an automobile which is formed by connecting a lower end portion of a front pillar extending in the vertical direction of an automobile and a front end portion of a side sill extending in the longitudinal direction of the automobile.
- a structure of a connecting portion between a front pillar and a side sill of an automobile includes a lower end portion of a front pillar formed in a closed cross-sectional shape by superimposing a front pillar outer and a front pillar inner extending in the vertical direction of the automobile.
- the front end portions of the side sill extending in the front-rear direction of the automobile and also having a closed cross-sectional shape are coupled to each other.
- the front pillar outer has been particularly configured using a steel plate having a high material strength.
- the lower end portion of the front pillar has a folding structure in which a large curve is drawn from the vertical direction of the vehicle body to the rear of the vehicle body and bent to the rear side of the vehicle body in order to be coupled to the side sill.
- the front pillar in order to make the configuration as simple as possible for improving productivity, the front pillar, in order from the upper direction of the automobile, an upper portion, and a center portion joined to the lower end of the upper portion,
- the lower terminal structure of the lower part should be made as short as possible (See Patent Document 1 and Patent Document 2).
- the front pillar is divided into the upper part, the center part, and the lower part, and the increase in the number of molding dies and the decrease in vehicle body productivity due to the increase in joints due to spot welding between the parts. Therefore, there is a possibility that the torsional rigidity of the vehicle body may deteriorate at the joint portion with the side sill, in addition to the fact that the lower terminal structure of the lower portion is made short.
- the twisting phenomenon of the vehicle body is a phenomenon in which the vehicle body rotates relatively in the front-rear direction about the longitudinal axis of the vehicle. In order to reduce the twisting phenomenon of the vehicle body, It is necessary to increase the rigidity.
- the front pillar is divided into three parts and the lower terminal structure of the lower part of the front pillar is configured in a short shape as in the conventional technique described above. For this reason, the torsional rigidity of the vehicle body between the lower portion and the side sill is reduced.
- the vehicle When the torsional rigidity of the vehicle body is reduced, for example, when the vehicle is turned by steering the steering wheel, the vehicle does not turn as the driver intended and the reaction is delayed, causing rolling or the like. May not be determined, and steering stability may be lacking. As the driving stability of such an automobile becomes higher, the higher it is, the higher it is required.
- the bending phenomenon in the joint portion of the front pillar with the side sill particularly the distortion phenomenon in the sill inner and sill outer X-axis surface coupling flanges is greatly related to the X axis and Z axis.
- the “X-axis surface” refers to a surface facing in the X-axis direction, which is the left-right axis of the vehicle body).
- this rigidity is related to the torsional moment that occurs at the boundary between the front pillar and the side sill.
- the configuration shown in FIGS. 8 and 9 is employed.
- the front pillar a extending in the vertical direction of the automobile is formed into a closed cross-sectional shape by first superimposing a front pillar outer b formed in a cross-sectional hat shape and a front pillar inner c having a large number of flat plate portions.
- the side sill is formed in a closed cross-sectional shape by polymerizing the side sill outer d and the side sill inner e so that the lower end portion thereof is bent in the rearward direction of the automobile and extends in the front-rear direction of the automobile.
- the construction is such that it is coupled to the front end of f.
- the conventional structure of the connecting portion between the front pillar and the side sill has a front pillar outer b for increasing the vehicle body strength against an input mainly caused by a tire (not shown) interfering with the front pillar a during a frontal collision.
- the reinforcement g is disposed so that the rear end side of the vehicle is inclined downward, and spot welding is performed on the front pillar outer b and the front pillar inner c, respectively. It has a combined structure.
- the reinforce g is mainly intended to suppress the deformation of the cross section of the front pillar a and efficiently transmit the collision load to the side sill f with respect to the input in the longitudinal direction of the vehicle during a frontal collision. It is still insufficient to increase the rigidity against the torsional moment of the joint between the pillar a and the side sill f.
- the lower end portion of the front pillar inner c is connected to the side sill outer d which forms the side sill f having a closed cross-sectional shape together with the side sill inner e along the longitudinal direction of the automobile.
- the lower end of the front pillar inner e is opened at the lower end opening.
- a plurality of i are formed corresponding to the coupling portion h.
- the front pillar inner c in the conventional front pillar-side sill joint structure is coupled to the side sill outer d of the side sill f at the lower end of the front pillar inner c by a single row of joints h in the vehicle longitudinal direction. Therefore, it has been experimentally found that the rigidity of the joint portion between the front pillar a and the side sill f, particularly around the Y axis, is not so large.
- an object of the present invention is to provide a combined structure of a front pillar and a side sill of an automobile that improves the driving stability of the automobile and at the same time realizes high productivity.
- the coupling structure of the front pillar and the side sill of the automobile according to the present invention extends in the vertical direction of the automobile, and is formed in a closed cross-sectional shape by overlapping the front pillar outer and the front pillar inner with each other.
- a front pillar and side sill of an automobile configured by coupling a front sill of a side sill extending in the front-rear direction of the automobile, and a front cross section of the front pillar,
- a reinforcement is disposed so as to extend in the direction and coupled to the front pillar, and a rear end side of the automobile of the reinforcement is extended to the side sill side to form a reinforcement portion of the reinforcement. It is characterized by comprising a reinforcement extension portion connected to the side sill side.
- the reinforcement disposed so as to extend in the longitudinal direction of the vehicle within the closed cross-sectional shape of the front pillar is coupled to the front pillar, and the rear end side of the vehicle is extended to the side sill side. Even if the front pillar outer, which forms the front pillar with the front pillar inner, is cut short by connecting the extension of the formed reinforcement to the side sill side, the torsional rigidity around the front pillar depends on the rigidity of the reinforcement.
- the torsional rigidity around the X-axis and Z-axis of the vehicle body can be increased to improve the handling stability of the automobile, and at the same time, the structure of the front pillar can be made into a single structure without being divided into three parts as in the prior art. High productivity can be realized.
- the present invention can be configured to couple the reinforcement to the front pillar outer side.
- the lower end portion of the front pillar outer can be cut short without impairing the driving stability of the vehicle, and a highly productive structure for connecting the front pillar and the side sill of the vehicle can be provided.
- the weight of the front pillar outer made of a material having high material strength can be reduced by reducing the thickness.
- a front pillar inner extension is formed by extending a lower end of the front pillar inner to the side sill side, and the lower end of the front pillar inner is
- the front sill inner extension may be coupled to the side sill inner while being coupled to the side sill inner of the side sill.
- the lower end portion of the front pillar inner is coupled to the side sill inner of the side sill, and the front pillar inner extension is coupled to the side sill inner, thereby increasing the coupling rigidity between the front pillar inner and the side sill inner. It is possible to increase the rigidity especially around the Y axis of the vehicle body at the joint of the front pillar inner with the side sill inner, and the front pillar inner uses a material that is not as strong as the front pillar outer. In addition, since it has a simple shape that is substantially flat, even if a front pillar inner extension is provided, the difficulty of formability does not increase.
- a connecting portion with a side sill inner at a lower end portion of the front pillar inner and a connecting portion with the side sill inner at a front pillar inner extension portion are arranged in a staggered manner. It is also possible to have a configuration as described above.
- the front pillar inner and the side sill are arranged.
- the joint rigidity with the inner can be increased, and the rigidity around the Y axis of the vehicle body can be increased especially at the joint portion of the front pillar inner with the side sill inner, and the front pillar inner is much less than the front pillar outer. Since a high-strength material is not used and a simple shape with a relatively large number of flat portions is exhibited, even if a front pillar inner extension is provided, the difficulty of formability does not increase.
- a side sill inner portion is formed by extending a side sill inner constituting the side sill toward the front pillar inner side, and the side sill inner is formed into the front pillar inner.
- the side sill extension may be coupled to the front pillar inner.
- the present invention provides a coupling between the side sill inner and the front pillar inner because the lower end of the front pillar inner is coupled to the side sill inner of the side sill and the side sill extension is coupled to the front pillar inner.
- the rigidity can be increased, and the rigidity around the Y axis of the vehicle body can be increased particularly at the joint portion of the side sill inner with the front pillar inner.
- a connecting portion with a side sill inner at a lower end portion of the front pillar inner and a connecting portion with the front pillar inner at a side sill inner extension portion are arranged in a staggered manner. It is also possible to do.
- the present invention is such that the spot hitting points of the connecting portion with the lower end portion of the front pillar inner in the side sill inner and the connecting portion with the front pillar inner in the side sill extension portion are arranged in a staggered manner.
- the coupling rigidity between the side sill inner and the front pillar inner can be increased, and the rigidity particularly around the Y axis of the vehicle body can be increased at the coupling portion of the front pillar inner with the side sill inner.
- the reinforcement disposed so as to extend in the longitudinal direction of the vehicle within the closed cross-sectional shape of the front pillar is coupled to the front pillar, and the rear end side of the vehicle extends to the side sill side. Even if the front pillar outer that forms the front pillar with the front pillar inner is cut short by connecting the extension part of the formed reinforcement to the side sill side, the rigidity around the front pillar depends on the rigidity of the reinforcement.
- the torsional rigidity around the X-axis and Z-axis of the vehicle body is increased to improve the driving stability of the automobile, and at the same time, the structure of the front pillar is not divided into three parts as in the prior art, and is made into a single structure. And high productivity can be realized.
- FIG. 6 is a perspective view of the vicinity of a coupling portion between the front pillar and the side sill in which a modification of the embodiment of the coupling portion structure of the front inner panel and the side sill inner in FIG. 1 is drawn.
- FIG. 6 is an enlarged side view of a coupling portion between a front pillar inner and a side sill inner in FIG. 5.
- FIG. 10 is a perspective view of the vicinity of the front pillar and side sill coupling portion in which another modification of the embodiment of the coupling portion structure of the front inner panel and side sill inner in FIG. 1 is depicted. It is the perspective view which drawn a part of front pillar and side sill in the prior art from the front pillar outer side.
- FIG. 9 is a side view in which a front pillar inner and a side sill inner of the side sill constituting the front pillar are removed and drawn at a joint portion between the front pillar and the side sill in FIG. 8. It is the perspective view which drawn a part of front pillar and side sill in the prior art from the front pillar inner side. It is the side view drawn from the front pillar inner side in the coupling
- a front pillar 1 is a front pillar that extends in the vertical direction of an automobile and is formed into a cross-sectional hat shape using a material such as a steel plate having high material strength.
- the pillar outer 2 and the front pillar inner 3 formed of a material such as a steel plate having a relatively low material strength so as to have a relatively large number of flat plate portions are joined to each other at an end flange to form a closed cross-sectional shape. Formed and configured.
- the front pillar 1 has a center portion 1a at the center, and an upper end portion 1b and a lower end portion 1c having bent portions 1b-1 and 1c-1 extending to the rear of the automobile.
- Both the front pillar inner 3 and the front pillar inner 3 have a single structure formed by, for example, press molding.
- the front pillar 1 has the lower end 1c opened downward, the opening is overlapped with the upward opening 4a-1 of the front end 4a of the side sill 4, and the lower end 1c is the side sill 4
- the front end portion 4a is coupled by spot welding or the like.
- the side sill 4 is formed in a closed cross-sectional shape by joining the side sill outer 5 facing the outside of the vehicle having a hat-shaped cross section and the side sill inner 6 facing the inside of the vehicle by spot welding or the like. It is composed by doing.
- a plate having a substantially “Z” cross section is formed at the joint 7 with the side sill 4 in the closed cross section formed by the front pillar outer 2 and the front pillar inner 3.
- a shaped reinforcement 8 is provided.
- the reinforcement 8 is disposed in a closed cross-sectional shape constituted by the front pillar outer 2 and the front pillar inner 3 so that the rear end side of the vehicle is inclined downward, and is spot welded to the front pillar outer 2 by spot welding or the like.
- the extension portion 8a is integrally formed by extending the rear end side of the vehicle to the side sill 4 side.
- the reinforcement extension 8a is coupled to both the X-axis surface coupling flanges of the side sill outer 5 and the side sill inner 6 constituting the side sill 4 and the side sill outer 5 itself by spot welding or the like.
- the reinforcement 8 disposed so as to extend in the longitudinal direction of the automobile within the closed cross section of the front pillar 1 is coupled to the front pillar outer 2 of the front pillar 1.
- a front pillar that constitutes the front pillar 1 together with the front pillar inner 3 is formed by connecting a reinforcement portion 8a formed by extending the rear end side of the vehicle to the side sill 4 side to the side sill outer 5 side of the side sill 4.
- the rigidity of the reinforcement 8 increases the torsional rigidity around the X axis and the Z axis of the vehicle body among the torsional rigidity around the front pillar 1.
- the stability can be improved, and at the same time, the structure of the front pillar 1 is divided into three parts as before. Into a single structure and without, it has become possible to mold once and the number of the mold in one, it is possible to realize a high productivity.
- the lower end portion of the front pillar inner 3 is extended to the side sill 4 side to form the front pillar inner extension portion 3a.
- the pillar inner extension 3a is coupled to the side sill inner 6 by spot welding or the like.
- the front pillar inner extension 3a has two connecting points 3a-1 to the side sill inner 6 that are separated from each other in a straight line along the longitudinal direction of the vehicle.
- the coupling points 3a-1 are arranged in a staggered manner with respect to two coupling points 3a-2 spaced from each other to the side sill inner 6 at the lower end of the front pillar inner 3.
- a through opening 3b is formed at the lower end of the front pillar inner 3 so that the side sill outer 5 and the side sill inner 6 can be directly coupled by spot welding or the like.
- the coupling point 3a-2 with the side sill inner 6 at the lower end portion of the front pillar inner 3 and the coupling point 3a-1 with the side sill inner 6 at the front pillar inner extension 3a are provided.
- the staggered arrangement of the front pillar inner 3 and the side sill inner 6 can increase the rigidity of the coupling between the front pillar inner 3 and the side sill inner 6.
- the rigidity around the shaft can be increased, and the front pillar inner 3 has a simple shape that does not use a material having a higher strength than the front pillar outer and has a large number of flat portions. Therefore, even if the front pillar inner extension 3a is provided, the difficulty of formability is reduced. Kunara no.
- FIG. 7 instead of forming the front pillar inner extension 3a at the lower end of the front pillar inner 3, the upper end of the side sill inner is replaced with the front pillar.
- a side sill extension 6 a may be formed by extending the inner sill 3, and the side sill extension 6 a may be coupled to the front pillar inner 3.
- the lower end portion of the front pillar inner 3 is coupled to the side sill inner 6 and the side sill extension is coupled to the front pillar inner 3, so that the side sill inner 6 and the front pillar inner 3 And the rigidity around the Y axis of the vehicle body can be increased at the joint portion of the side sill inner 6 with the front pillar inner 3.
- the connecting points with the side sill inner 6 at the lower end of the front pillar inner 3 and the connecting points with the front pillar inner 3 at the side sill inner extension are also arranged in a staggered manner.
- the coupling rigidity between the side sill inner 6 and the front pillar inner 3 can be increased, and in particular, the rigidity around the Y axis of the vehicle body at the coupling portion of the front pillar inner 3 with the side sill inner 6 can be increased.
- the reinforcement disposed so as to extend in the longitudinal direction of the automobile within the closed cross-sectional shape of the front pillar is coupled to the front pillar, and the rear end side of the automobile is connected to the side sill side. Even if the front pillar outer that forms the front pillar together with the front pillar inner is cut short by connecting the extension portion of the reinforcement formed on the side sill side to the side sill side, the front pillar will The torsional rigidity around the X-axis and Z-axis of the vehicle body is increased to improve the steering stability of the vehicle, and at the same time, the structure of the front pillar is not divided into three parts as in the prior art.
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
2 フロントピラーアウタ
3 フロントピラーインナ
3a フロントパネルインナ延長部
3a-1、3a-2 結合点
4 サイドシル
5 サイドシルアウタ
6 サイドシルインナ
7 結合部
8 レインフォース
8a レインフォース延長部
Claims (6)
- 自動車の上下方向に延設され、フロントピラーアウタおよびフロントピラーインナを互いに重合することによって閉断面形状に形成されたフロントピラーの下端部と、自動車の前後方向に延設されるサイドシルの前端部とを結合して構成する自動車のフロントピラーとサイドシルとの結合部構造であって、
前記フロントピラーの閉断面形状内に、自動車の前後方向に延在するように、レインフォースを配設して、該レインフォースを前記フロントピラーに結合すると共に、前記レインフォースの自動車後端側を前記サイドシル側に延在させてレインフォース延長部を形成して、該レインフォース延長部を前記サイドシル側に結合することによって構成した自動車のフロントピラーとサイドシルとの結合部構造。 - 前記レインフォースが前記フロントピラーアウタ側に結合した請求項1に記載の自動車のフロントピラーとサイドシルとの結合部構造。
- 前記フロントピラーインナの下端部を、前記サイドシル側に延長させることによって、フロントピラーインナ延長部を形成し、前記フロントピラーインナの下端部を前記サイドシルのサイドシルインナに結合すると共に、前記フロントピラーインナ延長部を前記サイドシルインナに結合した請求項1又は2に記載の自動車のフロントピラーとサイドシルとの結合部構造。
- 前記フロントピラーインナの下端部におけるサイドシルインナとの結合部とフロントピラーインナ延長部における前記サイドシルインナとの結合部とが、互いに千鳥状に配置されている請求項3に記載の自動車のフロントピラーとサイドシルとの結合部構造。
- 前記サイドシルを構成するサイドシルインナを、前記フロントピラーインナ側に延長させることによって、サイドシル延長部を形成して、前記サイドシルインナを前記フロントピラーインナに結合すると共に、前記サイドシル延長部を前記フロントピラーインナに結合して構成した請求項1又は2に記載の自動車のフロントピラーとサイドシルとの結合部構造。
- 前記フロントピラーインナの下端部におけるサイドシルインナとの結合部とサイドシルインナ延長部における前記フロントピラーインナとの結合部とが、互いに千鳥状に配置されている請求項3に記載の自動車のフロントピラーとサイドシルとの結合部構造。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN201180017593.7A CN102858622B (zh) | 2010-03-30 | 2011-03-16 | 汽车的前支柱与侧梁的结合部构造 |
GB1219158.1A GB2492515B (en) | 2010-03-30 | 2011-03-16 | Coupling structure between front pillar and side sill of automobile |
US13/631,074 US8439429B2 (en) | 2010-03-30 | 2012-09-28 | Coupling structure between front pillar and side sill of automobile |
Applications Claiming Priority (2)
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JP2010-079797 | 2010-03-30 | ||
JP2010079797A JP5562701B2 (ja) | 2010-03-30 | 2010-03-30 | 自動車のフロントピラーとサイドシルとの結合部構造 |
Related Child Applications (1)
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US13/631,074 Continuation US8439429B2 (en) | 2010-03-30 | 2012-09-28 | Coupling structure between front pillar and side sill of automobile |
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WO2011121919A1 true WO2011121919A1 (ja) | 2011-10-06 |
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US (1) | US8439429B2 (ja) |
JP (1) | JP5562701B2 (ja) |
CN (1) | CN102858622B (ja) |
GB (1) | GB2492515B (ja) |
WO (1) | WO2011121919A1 (ja) |
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US9090291B1 (en) * | 2014-04-01 | 2015-07-28 | Toyota Motor Engineering & Manufacturing North America, Inc. | Front pillar assemblies with front pillar lower reinforcement members having lower wrap reinforcement structures |
US9487239B2 (en) * | 2014-10-10 | 2016-11-08 | Toyota Motor Engineering & Manufacturing North America, Inc. | Vehicle structures and methods of assembling the same |
US9776664B2 (en) | 2015-03-18 | 2017-10-03 | Honda Motor Co., Ltd. | Impact transmission structure |
US9751568B2 (en) | 2015-12-07 | 2017-09-05 | Honda Motor Co., Ltd. | Body frame structure for a vehicle |
JP6211107B2 (ja) * | 2016-01-14 | 2017-10-11 | 本田技研工業株式会社 | 車体下部構造 |
JP6759262B2 (ja) | 2018-03-06 | 2020-09-23 | 株式会社豊田自動織機 | サイドシル構造 |
CN115180024B (zh) * | 2022-08-15 | 2023-12-05 | 浙江吉利控股集团有限公司 | 一种c柱接头结构及车身结构 |
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Also Published As
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JP5562701B2 (ja) | 2014-07-30 |
US8439429B2 (en) | 2013-05-14 |
CN102858622B (zh) | 2015-12-16 |
GB2492515A (en) | 2013-01-02 |
GB2492515B (en) | 2017-05-03 |
JP2011207455A (ja) | 2011-10-20 |
US20130020836A1 (en) | 2013-01-24 |
GB201219158D0 (en) | 2012-12-12 |
CN102858622A (zh) | 2013-01-02 |
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