JP2013203264A - Roof bow - Google Patents

Roof bow Download PDF

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Publication number
JP2013203264A
JP2013203264A JP2012075001A JP2012075001A JP2013203264A JP 2013203264 A JP2013203264 A JP 2013203264A JP 2012075001 A JP2012075001 A JP 2012075001A JP 2012075001 A JP2012075001 A JP 2012075001A JP 2013203264 A JP2013203264 A JP 2013203264A
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roof
roof bow
sealer
vehicle body
quenching
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JP2012075001A
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Kenji Shinoda
建志 篠田
Yoshinobu Matsumura
吉修 松村
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Mitsubishi Motors Corp
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Mitsubishi Motors Corp
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Priority to JP2012075001A priority Critical patent/JP2013203264A/en
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Abstract

PROBLEM TO BE SOLVED: To provide a roof bow capable of exhibiting high strength and capable of securing bonding strength of a sealer.SOLUTION: A roof section of a vehicle body includes a roof panel and a roof bow 32. The roof bow 32 has a sealer application portion 62 provided in a location facing the roof panel. Step portions 52, 53, 58 and 59 elongated in the width direction of the vehicle body are formed near the sealer application portion 62. The roof bow 32 has a quenched portion 90 and an unquenched portion 91. The quenched portion 90 is formed in a region which includes step portions 52, 53, 58 and 59, except the sealer application portion 62, and elongated in the width direction of the vehicle body 10. The unquenched portion 91 is formed in a region including the sealer application portion 62.

Description

本発明は、車体のルーフ部に設けるルーフボウに関する。   The present invention relates to a roof bow provided in a roof portion of a vehicle body.

自動車の車体上部構造をなすルーフ部は、ルーフパネルと、ルーフボウなどを備えている。ルーフボウは、ルーフパネルの下面に沿って配置され、車体の幅方向に延びている。例えば特許文献１，２に開示されているように、ルーフパネルとルーフボウとの間にシーラーが設けられ、このシーラーによって、ルーフパネルとルーフボウとが互いに接着されている。規定量のシーラーがルーフボウのシーラー塗布部に供給されるため、ルーフボウからルーフパネルまでの距離（クリアランス）が許容値を越えると、シーラー塗布部に供給されたシーラーのルーフパネルに対する接着強度が不足することがある。このためルーフボウのシーラー塗布部からルーフパネルまでの距離を許容範囲におさめる必要がある。   The roof part which forms the upper body structure of an automobile includes a roof panel and a roof bow. The roof bow is disposed along the lower surface of the roof panel and extends in the width direction of the vehicle body. For example, as disclosed in Patent Documents 1 and 2, a sealer is provided between the roof panel and the roof bow, and the roof panel and the roof bow are bonded to each other by the sealer. Since the specified amount of sealer is supplied to the sealer application part of the roof bow, if the distance (clearance) from the roofbow to the roof panel exceeds the allowable value, the adhesive strength of the sealer supplied to the sealer application part to the roof panel is insufficient. Sometimes. For this reason, it is necessary to keep the distance from the sealer application part of the roof bow to the roof panel within an allowable range.

一方、車体の側面方向から衝突荷重（側突荷重）の入力がある場合に、衝突荷重の一部がセンタピラーを介してルーフボウに入力することが想定される。ルーフボウの強度を焼入れによって高めることができれば、従来より高い衝突性能を有することができる。   On the other hand, when a collision load (side collision load) is input from the side surface direction of the vehicle body, it is assumed that a part of the collision load is input to the roof bow via the center pillar. If the strength of the roof bow can be increased by quenching, it can have higher collision performance than before.

特開平９−１３２１６５号公報JP-A-9-132165 特開２００８−１８９０６６号公報JP 2008-189066 A

ルーフボウに焼入れを行なうと、焼入れの熱によってシーラー塗布部が変形し、シーラー塗布部からルーフパネルまでの距離が許容範囲を越える可能性がある。その場合、シーラーの接着強度が低くなることが懸念される。   When the roof bow is quenched, the sealer application part may be deformed by the heat of quenching, and the distance from the sealer application part to the roof panel may exceed the allowable range. In that case, there is a concern that the adhesive strength of the sealer is lowered.

従って本発明が解決しようとする課題は、強度が高くかつシーラー塗布部に設けたシーラーの接着強度を確保できるルーフボウを提供することにある。   Therefore, the problem to be solved by the present invention is to provide a roof bow which has high strength and can secure the adhesive strength of the sealer provided in the sealer application part.

本発明のルーフボウは、シーラー塗布部と、このシーラー塗布部の近傍に形成され車体の幅方向に延びる段差部と、前記シーラー塗布部以外で前記段差部を含む領域に形成され前記段差部に沿って前記車体の幅方向に延びる焼入れ部と、前記シーラー塗布部を含む領域に形成された非焼入れ部とを具備している。   The roof bow of the present invention is formed in a region including the step portion except for the sealer application portion, a step portion formed in the vicinity of the sealer application portion and extending in the width direction of the vehicle body, and along the step portion. A quenching portion extending in the width direction of the vehicle body, and a non-quenching portion formed in a region including the sealer application portion.

本発明の１つの実施形態では、前記シーラー塗布部に車体の幅方向に延びる凹部が形成され、該凹部を除く領域に前記焼入れ部が形成されかつ前記凹部に前記非焼入れ部が形成されている。   In one embodiment of the present invention, a recess extending in the width direction of the vehicle body is formed in the sealer application portion, the quenching portion is formed in a region excluding the recess, and the non-quenching portion is formed in the recess. .

ルーフボウの１つの実施形態は、上側部材と、該上側部材の下側に接合された下側部材とを有し、前記上側部材と前記下側部材との間に閉断面が形成されている。他の実施形態のルーフボウは、フランジを有する略ハット形断面（開断面）の１枚の部材からなり、前記フランジに前記シーラー塗布部を有していてもよい。また１つの実施形態のルーフボウは、前記車体の左右一対のセンタピラー間に配置され、前記段差部と前記焼入れ部とが前記車体の幅方向に連続している。   One embodiment of the roof bow has an upper member and a lower member joined to the lower side of the upper member, and a closed cross section is formed between the upper member and the lower member. The roof bow of another embodiment may be formed of a single member having a substantially hat-shaped cross section (open cross section) having a flange, and the sealer coating portion may be provided on the flange. Moreover, the roof bow of one embodiment is disposed between a pair of left and right center pillars of the vehicle body, and the stepped portion and the quenching portion are continuous in the width direction of the vehicle body.

本発明によれば、ルーフボウに形成された段差部を含む焼入れ部によってルーフボウの強度を高めることができる。このルーフボウは、シーラー塗布部を含む領域を非焼入れ部としているため、焼入れ部の熱歪みによってシーラー塗布部が変形することを抑制でき、シーラー塗布部からルーフパネルまでの距離を許容範囲におさめることが可能となり、シーラーの接着強度が確保される。   According to the present invention, the strength of the roof bow can be increased by the quenching portion including the stepped portion formed on the roof bow. Since this roof bow has a non-quenched part in the area including the sealer application part, it can suppress deformation of the sealer application part due to thermal distortion of the quenching part, and keep the distance from the sealer application part to the roof panel within an allowable range. It is possible to secure the adhesive strength of the sealer.

車体の一部を示す斜視図。The perspective view which shows a part of vehicle body. 第１の実施形態に係るルーフボウの斜視図。The perspective view of the roof bow which concerns on 1st Embodiment. 図２中のＦ３−Ｆ３線に沿うルーフボウの断面とレーザ焼入れ装置を示す図。The figure which shows the cross section of the roof bow in alignment with the F3-F3 line | wire in FIG. 2, and a laser hardening apparatus. 図２に示されたルーフボウと、ルーフパネルおよびシーラーを示す断面図。Sectional drawing which shows the roof bow shown in FIG. 2, a roof panel, and a sealer. 図２に示されたルーフボウの一部で焼入れ部をハッチングで示した斜視図。The perspective view which showed the hardening part by hatching in a part of roof bow shown by FIG. 第２の実施形態に係るルーフボウの一部で焼入れ部をハッチングで示した斜視図。The perspective view which showed the hardening part by hatching in a part of roof bow which concerns on 2nd Embodiment. 第３の実施形態に係るルーフボウと、ルーフパネルおよびシーラーを示す断面図。Sectional drawing which shows the roof bow which concerns on 3rd Embodiment, a roof panel, and a sealer. 第４の実施形態に係るルーフボウと、ルーフパネルおよびシーラーを示す断面図。Sectional drawing which shows the roof bow which concerns on 4th Embodiment, a roof panel, and a sealer. 第５の実施形態に係るルーフボウの断面図。Sectional drawing of the roof bow which concerns on 5th Embodiment. 図９に示されたルーフボウと、ルーフパネルおよびシーラーを示す断面図。Sectional drawing which shows the roof bow | bowl shown in FIG. 9, a roof panel, and a sealer.

以下に本発明の第１の実施形態に係るルーフボウを備えた車体のルーフ部について、図１から図５を参照して説明する。
図１は、自動車の車体１０の一部を示している。この車体１０は、車体１０の下部に設けられた左右一対のサイドシル１１，１２と、車体１０の上部に設けられたサイドルーフレール１３，１４と、フロントピラー１５，１６と、センタピラー１７，１８と、リヤピラー１９，２０と、車体上部構造をなすルーフ部２５などを含んでいる。サイドシル１１，１２とサイドルーフレール１３，１４は、それぞれ車体１０の前後方向に延びている。図１において、矢印Ｘは車体１０の前後方向、矢印Ｙは車体１０の幅方向を示している。 Hereinafter, a roof portion of a vehicle body provided with a roof bow according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 5.
FIG. 1 shows a part of a vehicle body 10 of an automobile. The vehicle body 10 includes a pair of left and right side sills 11 and 12 provided at the lower part of the vehicle body 10, side roof rails 13 and 14 provided at the upper part of the vehicle body 10, front pillars 15 and 16, and center pillars 17 and 18. The rear pillars 19 and 20 and the roof portion 25 forming the vehicle body upper structure are included. The side sills 11 and 12 and the side roof rails 13 and 14 extend in the front-rear direction of the vehicle body 10, respectively. In FIG. 1, an arrow X indicates the longitudinal direction of the vehicle body 10, and an arrow Y indicates the width direction of the vehicle body 10.

ルーフ部２５は、ルーフパネル３０と、複数のルーフボウ３１，３２，３３，３４とを含んでいる。ルーフボウ３１，３２，３３，３４は、それぞれルーフパネル３０の下面に沿って配置され、車体１０の幅方向に延びている。左右一対のセンタピラー１７，１８間に設けられたルーフボウ（センタールーフボウ）３２の一例は閉断面を有している。   The roof portion 25 includes a roof panel 30 and a plurality of roof bows 31, 32, 33, and 34. Roof bows 31, 32, 33, 34 are arranged along the lower surface of roof panel 30 and extend in the width direction of vehicle body 10. An example of a roof bow (center roof bow) 32 provided between the pair of left and right center pillars 17 and 18 has a closed cross section.

以下にセンタピラー１７，１８間に設けられたルーフボウ３２を代表して説明する。
図２はルーフボウ３２の斜視図、図３はルーフボウ３２の断面図である。図３に示すように、本実施形態のルーフボウ３２は、車体上側に配置される上側部材４０と、車体下側に配置される下側部材４１とからなる。上側部材４０と下側部材４１とは、いずれも焼入れの熱処理によって焼入れ組織（例えばマルテンサイト）を得ることが可能な鋼板からなる。 Hereinafter, the roof bow 32 provided between the center pillars 17 and 18 will be described as a representative.
2 is a perspective view of the roof bow 32, and FIG. 3 is a cross-sectional view of the roof bow 32. As shown in FIG. 3, the roof bow 32 of the present embodiment includes an upper member 40 disposed on the upper side of the vehicle body and a lower member 41 disposed on the lower side of the vehicle body. The upper member 40 and the lower member 41 are each made of a steel plate capable of obtaining a quenched structure (for example, martensite) by a heat treatment of quenching.

上側部材４０は、前後一対のフランジ５０，５１と、フランジ５０，５１の端から立上がる形状の段差部５２，５３と、段差部５２，５３の上端から稜線部５４，５５を介して連なる凸面部５６，５７と、凸面部５６，５７から下がる形状の段差部５８，５９と、段差部５８，５９間に形成された中央面部６０とを含んでいる。この上側部材４０は、略ハット形断面をなしている。   The upper member 40 includes a pair of front and rear flanges 50 and 51, stepped portions 52 and 53 that rise from the ends of the flanges 50 and 51, and convex surfaces that are continuous from the upper ends of the stepped portions 52 and 53 through ridge portions 54 and 55. Parts 56, 57, stepped parts 58, 59 having a shape descending from the convex parts 56, 57, and a central surface part 60 formed between the stepped parts 58, 59. The upper member 40 has a substantially hat-shaped cross section.

凸面部５６，５７は、中央面部６０に対して段差部５８，５９の高さ分だけ上に凸の形状をなしている。凸面部５６，５７には、それぞれ下方に窪んだ形状の凹部６１を含むシーラー塗布部６２が形成されている。シーラー塗布部６２はルーフパネル３０の下面と対向する部位に形成され、ルーフボウ３２の長手方向に沿って車体１０の幅方向に延びている。図２に示すように本実施形態のシーラー塗布部６２は、車体１０の幅方向（矢印Ｙで示す方向）に互いに間隔を存して複数個所に形成されている。   The convex surface portions 56 and 57 are convex upward with respect to the central surface portion 60 by the height of the step portions 58 and 59. On the convex surface portions 56 and 57, a sealer application portion 62 including a concave portion 61 having a shape recessed downward is formed. The sealer application part 62 is formed at a portion facing the lower surface of the roof panel 30 and extends in the width direction of the vehicle body 10 along the longitudinal direction of the roof bow 32. As shown in FIG. 2, the sealer application part 62 of the present embodiment is formed at a plurality of locations at intervals in the width direction of the vehicle body 10 (direction indicated by the arrow Y).

下側部材４１は、前後一対のフランジ７０，７１と、フランジ７０，７１に連なる縦壁７２，７３と、縦壁７２，７３間に形成された下面部７４とを含んでいる。すなわちこの下側部材４１は、略ハット形断面をなしている。上側部材４０と下側部材４１とは、上側のフランジ５０，５１と下側のフランジ７０，７１とを互いにスポット溶接等の結合手段によって接合することにより、閉断面７７をなしている。閉断面７７の形状は車体１０の幅方向に変化するため、図３に示す形状に限らない。   The lower member 41 includes a pair of front and rear flanges 70, 71, vertical walls 72, 73 connected to the flanges 70, 71, and a lower surface portion 74 formed between the vertical walls 72, 73. That is, the lower member 41 has a substantially hat-shaped cross section. The upper member 40 and the lower member 41 form a closed section 77 by joining the upper flanges 50 and 51 and the lower flanges 70 and 71 to each other by coupling means such as spot welding. Since the shape of the closed section 77 changes in the width direction of the vehicle body 10, it is not limited to the shape shown in FIG.

図４に示されるように、ルーフボウ３２のシーラー塗布部６２にシーラー８０が配置される。凹部６１は、シーラー塗布部６２に所定量のシーラー８０を供給する際の位置決めあるいは目印として使用することができる。シーラー８０は例えば樹脂系接着剤からなり、このシーラー８０によってルーフパネル３０の下面とルーフボウ３２とが互いに接着されている。ルーフボウ３２の車体幅方向の両端は、サイドルーフレール１３，１４（図１に示す）に溶接等によって結合されている。   As shown in FIG. 4, a sealer 80 is disposed in the sealer application part 62 of the roof bow 32. The recess 61 can be used as a positioning or mark when supplying a predetermined amount of the sealer 80 to the sealer application part 62. The sealer 80 is made of, for example, a resin adhesive, and the lower surface of the roof panel 30 and the roof bow 32 are bonded to each other by the sealer 80. Both ends of the roof bow 32 in the vehicle body width direction are coupled to the side roof rails 13 and 14 (shown in FIG. 1) by welding or the like.

ルーフボウ３２の強度を高めるために、少なくとも上側部材４０には、図５にハッチングで模式的に示すように、シーラー塗布部６２以外で段差部５２，５３，５８，５９と稜線部５４，５５とを含む領域に、焼入れ部９０が形成されている。フランジ５０，５１とシーラー塗布部６２とを含む領域は、非焼入れ部９１となっている。本実施形態の非焼入れ部９１は、凹部６１の内側と凹部６１の周縁とを含む領域（図３に矢印Ｗ１で示す領域）に形成されている。   In order to increase the strength of the roof bow 32, at least the upper member 40 includes step portions 52, 53, 58, 59 and ridge portions 54, 55 other than the sealer application portion 62, as schematically shown by hatching in FIG. A quenching portion 90 is formed in a region including. A region including the flanges 50 and 51 and the sealer application portion 62 is a non-quenched portion 91. The non-quenched portion 91 of the present embodiment is formed in a region including the inner side of the recess 61 and the periphery of the recess 61 (a region indicated by an arrow W1 in FIG. 3).

図３にレーザ焼入れ装置１００の一例を模式的に示す。レーザ焼入れ装置１００によってルーフボウ３２にレーザビーム１０１を照射しつつ高速でスキャンすることにより、レーザビーム１０１が照射された箇所が焼入温度（例えばγ鉄が生じるオーステナイト化温度）まで急速加熱される。そして急速加熱された箇所の熱が周囲の低温部によって急速に奪われることにより、焼入れ組織（例えばマルテンサイト）が生じる温度勾配で急冷される。こうして前記焼入れ部９０が形成される。   FIG. 3 schematically shows an example of the laser hardening apparatus 100. By scanning at a high speed while irradiating the laser beam 101 to the roof bow 32 by the laser quenching apparatus 100, the portion irradiated with the laser beam 101 is rapidly heated to the quenching temperature (for example, the austenitizing temperature at which γ iron is generated). And the heat | fever of the rapidly heated location is rapidly deprived by the surrounding low temperature part, and it quenches rapidly with the temperature gradient which a hardened structure | tissue (for example, martensite) produces. Thus, the quenching portion 90 is formed.

本実施形態のルーフボウ３２は、シーラー塗布部６２の近傍に形成された段差部５２，５３，５８，５９と稜線部５４，５５とを有し、これら段差部５２，５３，５８，５９と稜線部５４，５５とを含む領域でシーラー塗布部６２を除く領域に、焼入れ部９０が形成されている。そしてこの焼入れ部９０は、段差部５２，５３，５８，５９と稜線部５４，５５に沿って車体１０の幅方向に連続して延びている。このため、焼入れ部９０による硬度アップの効果により、センタピラー１７，１８を介してルーフボウ３２に入力する側突荷重に対しルーフボウ３２の強度を高めることができ、例えば座屈を生じにくくすることができる。   The roof bow 32 of this embodiment has step portions 52, 53, 58, 59 and ridge portions 54, 55 formed in the vicinity of the sealer application portion 62, and these step portions 52, 53, 58, 59 and ridge lines. A quenching portion 90 is formed in a region including the portions 54 and 55 and excluding the sealer application portion 62. The quenching portion 90 continuously extends in the width direction of the vehicle body 10 along the step portions 52, 53, 58, 59 and the ridge portions 54, 55. For this reason, due to the effect of increasing the hardness by the quenching portion 90, the strength of the roof bow 32 can be increased with respect to the side impact load input to the roof bow 32 via the center pillars 17 and 18, and for example, buckling is less likely to occur. it can.

前記焼入れ部９０は、段差部５２，５３，５８，５９と稜線部５４，５５を含む領域に形成されている。シーラー塗布部６２が含まれる領域は非焼入れ部９１となっており、しかも非焼入れ部９１に凹部６１が形成されていることなどにより、シーラー塗布部６２が熱歪みの影響を受けることを抑制できる。このためルーフパネル３０からシーラー塗布部６２までの距離Ｇ（図４に示すクリアランス）が焼入れの熱によって大きくばらつくことを回避でき、シーラー８０の接着強度を確保できるものである。なお焼入れ部９０はシーラー塗布部６２を除く領域の一部に形成されていてもよい。また焼入れ部９０を上側部材４０と下側部材４１との双方に形成してもよい。   The quenching portion 90 is formed in a region including the step portions 52, 53, 58, 59 and the ridge line portions 54, 55. The region including the sealer application part 62 is a non-quenched part 91, and the concave part 61 is formed in the non-quenched part 91, so that the sealer application part 62 can be prevented from being affected by thermal distortion. . For this reason, it can be avoided that the distance G (clearance shown in FIG. 4) from the roof panel 30 to the sealer application part 62 greatly varies due to the heat of quenching, and the adhesive strength of the sealer 80 can be secured. In addition, the quenching part 90 may be formed in a part of area | region except the sealer application part 62. FIG. Further, the quenching portion 90 may be formed on both the upper member 40 and the lower member 41.

図６は第２の実施形態に係るルーフボウ３２Ａの焼入れ部９０をハッチングで示している。このルーフボウ３２Ａの焼入れ部９０は、フランジ５０，５１とシーラー塗布部６２と中央面部６０を除く領域に形成されている。それ以外の構成について、このルーフボウ３２Ａは第１の実施形態のルーフボウ３２と共通であるため、両者に共通の箇所に共通の符号を付して説明を省略する。   FIG. 6 shows the hardened portion 90 of the roof bow 32A according to the second embodiment by hatching. The quenching part 90 of the roof bow 32 </ b> A is formed in an area excluding the flanges 50 and 51, the sealer application part 62, and the central surface part 60. Since the roof bow 32A is the same as the roof bow 32 of the first embodiment, the same reference numerals are assigned to the common parts of the two, and the description thereof is omitted.

図７は第３の実施形態に係るルーフボウ３２Ｂを示している。このルーフボウ３２Ｂのシーラー塗布部６２には第１の実施形態の凹部６１が形成されておらず、凸面部５６，５７が平坦な形状となっている。それ以外は第１の実施形態のルーフボウ３２と共通であるため、互いに共通の箇所に共通の符号を付して説明を省略する。   FIG. 7 shows a roof bow 32B according to the third embodiment. The sealer application portion 62 of the roof bow 32B is not formed with the concave portion 61 of the first embodiment, and the convex surface portions 56 and 57 are flat. Since the rest is common to the roof bow 32 of the first embodiment, the same reference numerals are given to common portions, and the description is omitted.

図８は第４の実施形態に係るルーフボウ３２Ｃを示している。このルーフボウ３２Ｃは、中央面部６０と実質的に同じ高さに形成されたシーラー塗布部６２にシーラー８０が塗布されている。それ以外は第１の実施形態のルーフボウ３２と共通であるため、互いに共通の箇所に共通の符号を付して説明を省略する。   FIG. 8 shows a roof bow 32C according to the fourth embodiment. In this roof bow 32C, a sealer 80 is applied to a sealer application part 62 formed at substantially the same height as the central surface part 60. Since the rest is common to the roof bow 32 of the first embodiment, the same reference numerals are given to common portions, and the description is omitted.

図９と図１０は第５の実施形態に係るルーフボウ３３を示している。この実施形態は、図１に示す車体１０のルーフ部２５において、ピラーの無い箇所に配置されるルーフボウ３３であり、鋼製の１枚の部材１１０がプレスによって略ハット形断面（開断面）に成形されている。そしてこのルーフボウ３３の前後一対のフランジ部１１１，１１２にそれぞれ凹部６１を有するシーラー塗布部６２が設けられている。   9 and 10 show a roof bow 33 according to the fifth embodiment. This embodiment is a roof bow 33 arranged at a location without pillars in the roof portion 25 of the vehicle body 10 shown in FIG. 1, and a single steel member 110 is made into a substantially hat-shaped cross section (open cross section) by pressing. Molded. A pair of front and rear flange portions 111 and 112 of the roof bow 33 is provided with a sealer application portion 62 having a recess 61.

このルーフボウ３３の場合も、シーラー塗布部６２以外で段差部（縦壁）１２０，１２１を含む領域（図９に矢印Ｗ２で示す）に焼入れ部９０が形成され、シーラー塗布部６２を含む領域（図９に寸法線Ｗ３で示す）が非焼入れ部９１となっている。このため、ルーフパネル３０（図１０に示す）からシーラー塗布部６２までの距離Ｇが熱歪みによって許容範囲を越えることを抑制できる。しかも焼入れ部９０が段差部（縦壁）１２０，１２１を含む領域に形成されているため、ルーフボウ３３が熱歪みによって変形することを抑制できるものである。   Also in the case of this roof bow 33, a quenching portion 90 is formed in a region (indicated by an arrow W <b> 2 in FIG. 9) including stepped portions (vertical walls) 120, 121 other than the sealer coating portion 62, A non-quenched portion 91 is indicated by a dimension line W3 in FIG. For this reason, it can suppress that the distance G from the roof panel 30 (shown in FIG. 10) to the sealer application part 62 exceeds an allowable range due to thermal distortion. Moreover, since the quenching portion 90 is formed in a region including the step portions (vertical walls) 120 and 121, the roof bow 33 can be prevented from being deformed by thermal distortion.

このように本発明の実施形態は、センタピラー１７，１８間のルーフボウ（センタールーフボウ）３２をはじめとして、他のルーフボウ３１，３３，３４にも適用することができる。焼入れ部９０は、レーザ焼入れ装置以外の焼入れ手段（例えば高周波焼入れやシーム溶接機を用いた焼入れ等）によって形成されてもよい。またルーフボウやルーフパネルの形状や配置あるいは焼入れ部および非焼入れ部の配置や形状等の具体的な態様についても種々に変更して実施できることは言うまでもない。   Thus, the embodiment of the present invention can be applied not only to the roof bow (center roof bow) 32 between the center pillars 17 and 18, but also to other roof bows 31, 33 and 34. The quenching part 90 may be formed by quenching means other than the laser quenching apparatus (for example, induction quenching or quenching using a seam welder). Needless to say, the shape and arrangement of the roof bow and the roof panel or the arrangement and shape of the quenching part and the non-quenching part can be variously changed.

１０…車体、１３，１４…サイドルーフレール、１７，１８…センタピラー、２５…ルーフ部、３０…ルーフパネル、３１，３２，３２Ａ，３２Ｂ，３２Ｃ，３３，３４…ルーフボウ、４０…上側部材、４１…下側部材、５２，５３…段差部、５８，５９…段差部、６１…凹部、６２…シーラー塗布部、８０…シーラー、９０…焼入れ部、９１…非焼入れ部、１２０，１２１…段差部。   DESCRIPTION OF SYMBOLS 10 ... Vehicle body, 13, 14 ... Side roof rail, 17, 18 ... Center pillar, 25 ... Roof part, 30 ... Roof panel, 31, 32, 32A, 32B, 32C, 33, 34 ... Roof bow, 40 ... Upper member, 41 ... Lower member, 52, 53 ... Stepped portion, 58, 59 ... Stepped portion, 61 ... Recessed portion, 62 ... Sealer application portion, 80 ... Sealer, 90 ... Quenched portion, 91 ... Non-quenched portion, 120, 121 ... Stepped portion .

Claims (5)

車体のルーフパネルの下面に沿って配置されるルーフボウであって、
前記ルーフパネルと対向する部位に設けられ、前記ルーフパネルとの間にシーラーが配置されるシーラー塗布部と、
前記シーラー塗布部の近傍に形成され、前記車体の幅方向に延びる段差部と、
前記シーラー塗布部以外で前記段差部を含む領域に形成され、前記段差部に沿って前記車体の幅方向に延びる焼入れ部と、
前記シーラー塗布部を含む領域に形成された非焼入れ部と、
を具備したことを特徴とするルーフボウ。 A roof bow disposed along the lower surface of the roof panel of the vehicle body,
A sealer application portion provided in a portion facing the roof panel, and a sealer disposed between the roof panel and the sealer;
A step portion formed in the vicinity of the sealer application portion and extending in the width direction of the vehicle body,
A quenching part that is formed in a region including the step part other than the sealer application part and extends in the width direction of the vehicle body along the step part,
A non-quenched part formed in a region including the sealer application part,
A roof bow characterized by comprising: 前記シーラー塗布部に前記車体の幅方向に延びる凹部が形成され、該凹部を除く領域に前記焼入れ部が形成されかつ前記凹部に前記非焼入れ部が形成されたことを特徴とする請求項１に記載のルーフボウ。   The concave part extending in the width direction of the vehicle body is formed in the sealer application part, the quenching part is formed in a region excluding the concave part, and the non-quenching part is formed in the concave part. The roof bow described. 上側部材と、該上側部材の下側に接合された下側部材とを有し、前記上側部材と前記下側部材との間に閉断面が形成されたことを特徴とする請求項１または２に記載のルーフボウ。   3. The apparatus according to claim 1, further comprising an upper member and a lower member joined to a lower side of the upper member, wherein a closed cross section is formed between the upper member and the lower member. The roof bow described in 1. フランジを有する開断面の１枚の部材からなり、前記フランジに前記シーラー塗布部を有したことを特徴とする請求項１または２に記載のルーフボウ。   3. The roof bow according to claim 1, wherein the roof bow is formed of a single member having an open cross section having a flange, and the sealer application portion is provided on the flange. 前記車体の左右一対のセンタピラー間に配置され、前記段差部と前記焼入れ部とが前記車体の幅方向に連続していることを特徴とする請求項１から４のいずれか１項に記載のルーフボウ。   5. The apparatus according to claim 1, wherein the stepped portion and the quenching portion are arranged in a width direction of the vehicle body and are arranged between a pair of left and right center pillars of the vehicle body. Roof bow.
JP2012075001A 2012-03-28 2012-03-28 Roof bow Pending JP2013203264A (en)

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CN110386194A (en) * 2018-04-16 2019-10-29 铃木株式会社 The construction of vehicle top beam
CN110386194B (en) * 2018-04-16 2021-11-26 铃木株式会社 Structure of roof beam for vehicle
JP2021084489A (en) * 2019-11-26 2021-06-03 スズキ株式会社 Vehicle body structure
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KR20210070046A (en) * 2019-12-04 2021-06-14 주식회사 세원정공 Roof rail structure
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