JP3366085B2 - Manufacturing method for automotive floor - Google Patents

Manufacturing method for automotive floor

Info

Publication number
JP3366085B2
JP3366085B2 JP29362493A JP29362493A JP3366085B2 JP 3366085 B2 JP3366085 B2 JP 3366085B2 JP 29362493 A JP29362493 A JP 29362493A JP 29362493 A JP29362493 A JP 29362493A JP 3366085 B2 JP3366085 B2 JP 3366085B2
Authority
JP
Japan
Prior art keywords
section
open
closed
cross
floor
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
JP29362493A
Other languages
Japanese (ja)
Other versions
JPH07144661A (en
Inventor
傑 吉田
正和 佐藤
栄治 杉尾
泰 田代
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Showa Denko KK
Original Assignee
Honda Motor Co Ltd
Showa Denko KK
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 Honda Motor Co Ltd, Showa Denko KK filed Critical Honda Motor Co Ltd
Priority to JP29362493A priority Critical patent/JP3366085B2/en
Publication of JPH07144661A publication Critical patent/JPH07144661A/en
Application granted granted Critical
Publication of JP3366085B2 publication Critical patent/JP3366085B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B21C23/142—Making profiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Body Structure For Vehicles (AREA)
  • Extrusion Of Metal (AREA)

Description

【発明の詳細な説明】 【０００１】 【産業上の利用分野】本発明は，自動車用フロアの製造
方法に関する。 【０００２】 【従来の技術】従来，自動車用フロアは，プレス成形さ
れた薄板鋼板を溶接により接合して構成されるのが一般
的である。 【０００３】 【発明が解決しようとする課題】ところが，上記従来の
ような薄板鋼板の溶接接合によるものでは，接合作業が
煩雑である。そこで，特公昭５９−３７６９２号公報で
開示されるように，屈曲状態で押出し成形された部材に
開き加工を施して幅広の部材を得るようにした技術を利
用すると，溶接接合作業が不要であり，自動車用フロア
を容易に得ることができるようになる。ところが，屈曲
状態にある押出し材にあっては，開き加工を施す必要
上，その屈曲部は開断面構造とならざるを得ず，開き加
工を施して幅広のフロアを構成したときに開断面部がそ
のまま残っていると，その部分の剛性が低くなってしま
う。 【０００４】本発明は，かかる事情に鑑みてなされたも
のであり，押出し材を用いて容易に製造可能とするとと
もに充分な剛性が得られるようにした自動車用フロアの
製造方法を提供することを目的とする。 【０００５】 【課題を解決するための手段】上記目的を達成するため
に，請求項１記載の発明は，押出し方向と直交する断面
を閉断面として前記押出し方向に延びる複数の閉断面
部，ならびにそれらの閉断面部間を結んで屈曲した開断
面部を有する押出し材を押出し成形する工程と，該押出
し材の屈曲した開断面部に開き加工を施して幅広のフロ
ア構成材を得る工程と，前記開き加工で開かれた各開断
面部の両側の閉断面部にそれぞれ在って前記押出し方向
に延びる係合溝に，その各開断面部の開放部を塞ぐブラ
ケットに形成した係止爪をそれぞれ係合させて，該ブラ
ケットを前記フロア構成材に結合することで，該各開断
面部がその長手方向の少なくとも一部の領域で該ブラケ
ットにより開放部を塞がれて閉断面形状となるようにし
た工程とを順次経過させて自動車用フロアを製造するこ
とを特徴とする。 【０００６】 【実施例】以下，図面により本発明の一実施例について
説明する。 【０００７】図１ないし図３は本発明の一実施例を示す
ものであり，図１は自動車用フロアの一側分解斜視図，
図２は自動車用フロアの分解状態での一側横断面図，図
３は押出し材の横断面図である。 【０００８】先ず図１および図２において，自動車用フ
ロアは，アルミニウム合金等により幅広に形成されるフ
ロア構成材１と，該フロア構成材１に結合されるシート
取付け用のブラケット２1 ，２2 ，２3 ，２4 と，フロ
ア構成材１に結合される配線固定用のブラケット３とで
構成される。 【０００９】フロア構成材１は，自動車の前後方向に沿
う中心線を含む鉛直面Ｃに関して左，右対称に形成され
るものであり，自動車の幅方向に沿う中心部に位置する
第１閉断面部４と，第１閉断面部４の両側にそれぞれ連
設される一対の第１開断面部５と，両第１開断面部５の
外側端にそれぞれ連設される一対の第２閉断面部６と，
両第２閉断面部６の外側端にそれぞれ連設される一対の
第２開断面部７と，両第２開断面部７の外側端にそれぞ
れ連設される一対の第３閉断面部８とを備える。 【００１０】第１，第２および第３閉断面部４，６，８
は，自動車の前後方向に直交する断面を閉断面とした複
数の閉断面形状部分４1 〜４7 ，６1 〜６4 ，８1 〜８
3 が連設されて成る横断面形状を有して自動車の前後方
向に延びるものであり，第１閉断面部４は自動車の幅方
向に沿う中心部を高位置とした山形に形成され，第２閉
断面部６は自動車の幅方向に沿ってほぼ水平な平板状に
形成され，第３閉断面部８は自動車の前後方向に直交す
る断面が略Ｌ字状となるように形成される。 【００１１】第１開断面部５は，上方を開放して自動車
の前後方向に延びる溝を第１および第２閉断面部４，６
間に形成するようにして第１および第２閉断面部４，６
間を結ぶものであり，また第２閉断面部７は，上方を開
放して自動車の前後方向に延びる溝を第２および第３閉
断面部６，８間に形成するようにして第２および第３閉
断面部６，８間を結ぶものである。 【００１２】４つのブラケット２1 ，２2 ，２3 ，２4
は，図示しないシートを取付けるために用いられるもの
であるが，それらのブラケット２1 〜２4 のうち２つの
ブラケット２1 ，２2 は，同一形状のものであり，第２
開断面部７の上端開放部の一部を塞ぐようにして第２開
断面部７の両側に位置する第２および第３閉断面部６，
８に結合される。すなわち第２および第３閉断面部６，
８には，それらの閉断面部６，８間に第２開断面部７に
よって形成される溝の底部両側に位置するようにして，
自動車の前後方向に沿って延びる係合溝１０，１０がそ
れぞれ設けられており，両ブラケット２1 ，２2 は，第
２および第３閉断面部６，８間の上記溝に上方から嵌合
せしめられる。而して両ブラケット２1 ，２2 の両側に
は係合爪９，９がそれぞれ設けられており，それらの係
合爪９，９が係合溝１０，１０に弾発係合せしめられる
ことにより，両ブラケット２1 ，２2 がフロア構成材１
に結合されることになる。しかも両ブラケット２1 ，２
2 を，自動車の前後方向を押出方向として押出し成形す
ることにより係合爪９，９の形成は容易となる。 【００１３】残余のブラケット２3 ，２4 は，同一形状
のものであり，第１閉断面部４の閉断面形状部分４3 ，
４6 間にわたって結合される。すなわち第１閉断面部４
において，閉断面形状部分４3 ，４4 の連設部ならびに
閉断面形状部分４5 ，４6 の連設部には，自動車の前後
方向に沿って延びる係合溝１１，１１が設けられてお
り，両ブラケット２3 ，２4 の両側には係合溝１１，１
１に弾発係合する係合爪１２，１２がそれぞれ設けられ
る。しかも両ブラケット２3 ，２4 を，自動車の前後方
向を押出方向として押出し成形することにより係合爪１
２，１２の形成は容易となる。 【００１４】ブラケット３は，配線固定用のものであ
り，第１開断面部５の上端開放部をその全長にわたって
塞ぐようにして第１開断面部５の両側に位置する第１お
よび第２閉断面部４，６に結合される。すなわち第１お
よび第２閉断面部４，６には，それらの閉断面部４，６
間に第１開断面部５によって形成される溝の底部両側に
位置するようにして自動車の前後方向に沿って延びる係
合溝１３，１３がそれぞれ設けられており，ブラケット
３は，第１および第２閉断面部４，６間の上記溝に上方
から嵌合せしめられる。而してブラケット３の両側には
係合爪１４，１４がそれぞれ設けられており，それらの
係合爪１４，１４が係合溝１３，１３に弾発係合せしめ
られることにより，ブラケット３がフロア構成材１に結
合されることになる。しかもブラケット３を，自動車の
前後方向を押出方向として押出し成形することにより係
合爪１４，１４の形成は容易となる。 【００１５】このような自動車用フロアは，図３で示す
押出し材１′を押出し成形する工程と，該押出し材１′
に開き加工を施して図１および図２で示す幅広のフロア
構成材１を得る工程と，該フロア構成材１にブラケット
２1 〜２4 ，３を結合させる工程とを順次経過すること
により製造される。 【００１６】押出材１′は，第１閉断面部４とその両側
に位置する一対の第２閉断面部６との間が屈曲形状の開
断面部５′を介してそれぞれ連設されるとともに一対の
第２閉断面部６および一対の第３閉断面部８間が屈曲形
状の開断面部７′を介してそれぞれ連設されて成る左，
右対称の形状を有し，図３の紙面に直交する方向を押出
し方向として押出し成形されるものであり，第１，第２
および第３閉断面部４，６，８は，該押出し方向と直交
する断面が閉断面となるように形成されておしだしし方
向に延びるものであり，またそれらの閉断面部４，６，
８間の開断面部５′，７′は屈曲状態に在る。 【００１７】このような押出し材１′を得た後には，開
断面部５′，７′に開き加工を施すことにより，図１お
よび図２で示すように，幅広となったフロア構成材１が
得られる。そこで，該フロア構成材１の対応部分にブラ
ケット２1 〜２4 ，３の結合作業を行なうことにより自
動車用フロアが得られる。 【００１８】次にこの実施例の作用について説明する
と，自動車用フロアは，第１，第２およびよび第３閉断
面部４，６，８と，第１および第２閉断面部４，６間を
結ぶ第１開断面部５と，第２および第３閉断面部６，８
間を結ぶ第２開断面部７とを有するフロア構成材１に，
ブラケット２1 〜２4 ，３が結合されて成るものであ
り，従来のような溶接接合作業が不要である。しかも第
２開断面部７の上端開放部がその長手方向に間隔をあけ
た２個所でブラケット２1 ，２2 により塞がれて閉断面
形状となることにより剛性を向上することができ，さら
に第１開断面部５の上端開放部がその長手方向全長にわ
たってブラケット３により塞がれて閉断面形状となるこ
とにより剛性をさらに向上することができ，自動車用フ
ロア全体としての縦方向の剛性およびねじれ剛性を向上
することができ，振動，騒音の低減を図ることも可能と
なる。 【００１９】またフロア構成材１は，屈曲形状に在る開
断面部５′，７′を有する押出し材１′に開き加工を施
して得られるものであり，開断面部５′，７′が屈曲状
態に在ることにより，押出し材１′の押出し方向に直交
する断面形状をコンパクトにして押出し加工装置の小型
化を図り，押出し材１′を容易に得ることができるよう
になる。 【００２０】以上，本発明の実施例を詳述したが，本発
明は上記実施例に限定されるものではなく，特許請求の
範囲に記載された本発明を逸脱することなく種々の設計
変更を行なうことが可能である。 【００２１】 【発明の効果】以上のように請求項１記載の発明に従う
自動車用フロアの製造方法は，押出し方向と直交する断
面を閉断面として前記押出し方向に延びる複数の閉断面
部，ならびにそれらの閉断面部間を結んで屈曲した開断
面部を有する押出し材を押出し成形する工程と，該押出
し材の屈曲した開断面部に開き加工を施して幅広のフロ
ア構成材を得る工程と，前記開き加工で開かれた各開断
面部の両側の閉断面部にそれぞれ在って前記押出し方向
に延びる係合溝に，その各開断面部の開放部を塞ぐブラ
ケットに形成した係止爪をそれぞれ係合させて，該ブラ
ケットを前記フロア構成材に結合することで，該各開断
面部がその長手方向の少なくとも一部の領域で該ブラケ
ットにより開放部を塞がれて閉断面形状となるようにし
た工程とを順次経過させて自動車用フロアを製造するの
で，フロア構成材が幅広であっても，押出し材の，押出
し方向に直交する断面形状を極力コンパクトにして，押
出し 加工装置の小型化を図ると共に押出し材の押出加工
を容易とすることができる。しかもその押出加工後は，
押出し材の開断面部を開き加工することで，幅広のフロ
ア構成材を無理なく且つ溶接接合作業を不要として形成
することができ，また該開き加工された各開断面部が，
その長手方向の少なくとも一部の領域でブラケットによ
り開放部を塞がれて閉断面形状となるため，その開断面
部の剛性，強度を効果的に高めることができ，従って，
その開断面部に前記開き加工に因る歪が残留していて
も，上記ブラケットによって該歪に曲げ応力が極力加わ
らないようにして該開断面部の破断を効果的に防止で
き，全体として充分な剛性，強度の自動車用フロアを得
ることができる。 【００２２】また上記ブラケットをフロア構成材に結合
するために，開き加工で開かれた各開断面部の両側の閉
断面部およびブラケットにそれぞれ形成される係合溝お
よび係止爪を相互に係合させるので，該ブラケットのフ
ロア構成材への結合強度を簡単な構造で十分に確保でき
るばかりか、係合溝を押出し材の押出加工と同時成形で
きて加工能率アップや加工精度の向上に寄与することが
できる。 DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION The present invention relates to a method for manufacturing of automotive floor. [0002] Conventionally, floors for automobiles are generally constructed by joining thin steel plates formed by press forming by welding. [0003] However, in the above-mentioned conventional method of welding thin steel plates by welding, the joining operation is complicated. Therefore, as disclosed in Japanese Patent Publication No. 59-37692, if a technique is used in which a member extruded in a bent state is opened to obtain a wide member, welding and joining work is unnecessary. Thus, a floor for an automobile can be easily obtained. However, in the case of the extruded material in a bent state, it is necessary to perform the opening process, and the bent portion must have an open cross-section structure. If it remains as it is, the rigidity of that part will be low. [0004] The present invention has been made in view of such circumstances, the automobile floor method <br/> manufacture sufficient rigidity is to be obtained with a readily manufactured using an extrusion material The purpose is to provide. [0005] In order to achieve the above object, according to the first aspect of the present invention, a plurality of closed cross sections extending in the extrusion direction with a cross section orthogonal to the extrusion direction being a closed cross section, and Extruding an extruded material having an open cross-section bent by connecting the closed cross-sections, and opening the bent open cross-section of the extruded material to obtain a wide floor component; The extrusion direction is located on each of the closed cross sections on both sides of each open cross section opened by the opening process.
The engagement groove extending in a locking claw formed on the bra <br/> packet for closing the open portion of the respective opening cross section by engaged respectively, the bra
By connecting a bracket to the floor component,
The bracket has a surface portion in at least a part of its longitudinal direction.
So that the opening is closed by the
And manufacturing the floor for an automobile by sequentially passing through the steps described above. An embodiment of the present invention will be described below with reference to the drawings. 1 to 3 show an embodiment of the present invention. FIG. 1 is an exploded perspective view of one side of an automobile floor.
FIG. 2 is a side cross-sectional view of the automobile floor in an exploded state, and FIG. 3 is a cross-sectional view of an extruded material. 1 and 2, a floor for an automobile has a floor component 1 made of an aluminum alloy or the like and a wide width, and brackets 2 1 and 2 2 attached to the floor component 1 for seat attachment. , 2 3 , 2 4, and a wiring fixing bracket 3 coupled to the floor component 1. The floor component 1 is formed symmetrically left and right with respect to a vertical plane C including a center line along the front-rear direction of the vehicle, and has a first closed section located at the center along the width direction of the vehicle. Part 4, a pair of first open section sections 5 provided on both sides of the first closed section section 4, respectively, and a pair of second closed section sections provided on the outer ends of both first open section sections 5, respectively Part 6,
A pair of second open sections 7 connected to the outer ends of both second closed sections 6 and a pair of third closed sections 8 connected to the outer ends of both second open sections 7 respectively. And The first, second and third closed section portions 4, 6, 8
A plurality of closed section portion and closed cross section of the cross section perpendicular to the longitudinal direction of the automobile 41 to 7, 61 through 4, 8 1-8
3 has a cross-sectional shape formed in a row and extends in the front-rear direction of the vehicle. The first closed cross-section 4 is formed in a mountain shape with a central portion along the width direction of the vehicle at a high position. The second closed cross-section 6 is formed in a substantially horizontal plate shape along the width direction of the vehicle, and the third closed cross-section 8 is formed such that a cross section orthogonal to the front-rear direction of the vehicle has a substantially L shape. The first open section 5 is provided with grooves extending upward and downward and extending in the front-rear direction of the vehicle.
The first and second closed cross-sections 4, 6 are formed between them.
The second closed section 7 is opened upward and a groove extending in the front-rear direction of the vehicle is formed between the second and third closed sections 6 and 8. It connects the third closed section portions 6 and 8. The four brackets 2 1 , 2 2 , 2 3 , 2 4
Is what is used for attaching the unillustrated sheet, two brackets 2 1, 2 2 of those brackets 21 to 24 are of the same shape, the second
The second and third closed sections 6, 6 located on both sides of the second open section 7 so as to close a part of the upper end open section of the open section 7
8. That is, the second and third closed section portions 6,
8 are located on both sides of the bottom of the groove formed by the second open section 7 between the closed sections 6 and 8,
Engaging grooves 10, 10 extending along the longitudinal direction of the automobile are provided respectively, both brackets 2 1, 2 2, fitted from above into the groove between the second and third closed-section portion 6,8 I'm sullen. Thus to both brackets 2 1, the 2 2 on both sides is provided engaging pawl 9, 9, respectively, that their engaging claw 9,9 is made to the engagement grooves 10, 10 resiliently engaging As a result, both brackets 2 1 and 2 2 become floor component 1
Will be combined. Moreover, both brackets 2 1 , 2
By extruding 2 with the front-rear direction of the automobile being the extrusion direction, the formation of the engagement claws 9, 9 becomes easy. [0013] the remainder of the bracket 2 3, 2 4 are of the same shape, closed section portion 4 3 of the first closed cross-section portion 4,
4 is coupled across between 6. That is, the first closed section 4
In, the closed cross section portion 4 3, 4 4 connecting portions and closed section portion 4 5, 4 6 connecting portion of, and engagement grooves 11, 11 is provided extending along the longitudinal direction of the automobile cage, on both sides of the two brackets 2 3, 2 4 engaging groove 11, 1
1 are provided with engaging claws 12, 12 which resiliently engage. In addition, the engagement claws 1 are formed by extruding the brackets 2 3 and 2 4 with the front-rear direction of the vehicle being the extrusion direction.
Formation of 2 and 12 becomes easy. The bracket 3 is used for fixing the wiring, and the first and second closing portions located on both sides of the first open section 5 are arranged so as to cover the open upper end of the first open section 5 over the entire length thereof. It is connected to the cross sections 4,6. That is, the first and second closed sections 4 and 6 have the closed sections 4 and 6 respectively.
Engagement grooves 13, 13 are provided between the first and second open sections 5 so as to be located on both sides of the bottom of the groove and extend in the front-rear direction of the vehicle. The groove between the second closed cross-sections 4 and 6 is fitted from above. Engaging claws 14, 14 are provided on both sides of the bracket 3, respectively. The engaging claws 14, 14 are resiliently engaged with the engaging grooves 13, 13, whereby the bracket 3 is moved. It will be joined to the floor component 1. Moreover, the engagement claws 14 are easily formed by extruding the bracket 3 with the front-rear direction of the vehicle being the extrusion direction. The floor for such an automobile is formed by extruding an extruded material 1 'shown in FIG.
Production and obtaining the floor structure material 1 wide by sequentially passed and a step of bonding the bracket 21 to 24, 3 to the floor structure material 1 shown in FIGS. 1 and 2 giving the process opens Is done. In the extruded material 1 ', the first closed section 4 and a pair of second closed sections 6 located on both sides thereof are connected to each other via a bent open section 5'. A pair of second closed cross-sections 6 and a pair of third closed cross-sections 8 are connected to each other via a bent open cross-section 7 '.
It has a right-symmetrical shape, and is formed by extrusion using a direction perpendicular to the paper surface of FIG. 3 as an extrusion direction.
And the third closed cross-sections 4, 6, 8 are formed so that the cross section orthogonal to the extrusion direction is a closed cross-section, and extend in the piercing direction.
The open sections 5 ', 7' between the eight are in a bent state. After obtaining such an extruded material 1 ', the open section portions 5' and 7 'are subjected to an opening process so as to make the floor component material 1 wider as shown in FIGS. Is obtained. Therefore, automobile floor is obtained by performing a binding work of the floor structure material 1 to the corresponding parts bracket 2 1 to 2 4, 3. Next, the operation of this embodiment will be described. The floor for an automobile is composed of first, second and third closed sections 4, 6, 8 and first and second closed sections 4, 6. a first opening cross section 5 connecting the second and third closed-section portion 6,8
A floor component 1 having a second open section 7 connecting the
Bracket 21 to 24, 3 are those, which are coupled, welding operations, such as in the prior art is not required. Moreover it is the upper end opening portion of the second opening cross section 7 improves rigidity by becoming blocked by the bracket 2 1, 2 2 and closed section at two locations spaced in the longitudinal direction, further The upper end opening of the first open section 5 is closed by the bracket 3 over the entire length in the longitudinal direction to form a closed section, so that the rigidity can be further improved. The torsional rigidity can be improved, and vibration and noise can be reduced. The floor component 1 is obtained by subjecting an extruded material 1 'having open sections 5', 7 'in a bent shape to open processing, and the open sections 5', 7 'are formed. By being in the bent state, the cross-sectional shape orthogonal to the extrusion direction of the extruded material 1 'can be made compact to reduce the size of the extruding device, and the extruded material 1' can be easily obtained. Although the embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the appended claims. It is possible to do. As described above, the method for manufacturing an automobile floor according to the first aspect of the present invention comprises a plurality of closed cross-section portions extending in the extrusion direction with a cross section orthogonal to the extrusion direction being a closed cross section. Extruding an extruded material having an open cross-section bent by connecting the closed cross-sections of the extruded material; opening the bent open cross-section of the extruded material to obtain a wide floor component; The extrusion direction is located on each of the closed cross sections on both sides of each open cross section opened by the opening process.
The engagement groove extending in a locking claw formed on the bra <br/> packet for closing the open portion of the respective opening cross section by engaged respectively, the bra
By connecting a bracket to the floor component,
The bracket has a surface portion in at least a part of its longitudinal direction.
So that the opening is closed by the
And since a step by sequentially passed to produce the floor automotive even floor construction material is wide, the extruded material, extrusion
The cross section perpendicular to the pressing direction should be as compact as possible
The extrusion of the extruded material with miniaturized out machining apparatus can be facilitated. And after the extrusion process,
By opening and processing the open section of the extruded material, a wide floor component can be formed without difficulty and without welding joint work .
At least part of the length of the bracket
The open section is closed to form a closed section.
Can effectively increase the rigidity and strength of the part,
The strain due to the opening process remains in the open section
In addition, bending stress is applied to the strain as much as possible by the bracket.
So that breakage of the open section can be effectively prevented.
Thus, it is possible to obtain an automobile floor having sufficient rigidity and strength as a whole . Further, the bracket is connected to a floor component.
To close each side of each open section that was opened by the opening process.
Engagement grooves and
And the hooks engage each other, so that the bracket
Sufficient bonding strength to the lower component can be secured with a simple structure
In addition, the engaging groove is formed simultaneously with the extrusion of the extruded material.
Can contribute to improving machining efficiency and machining accuracy
it can.

【図面の簡単な説明】 【図１】自動車用フロアの一側分解斜視図である。 【図２】自動車用フロアの分解状態での一側横断面図で
ある。 【図３】押出し材の横断面図である。 【符号の説明】 １・・・フロア構成材 １′・・・押出し材 ２1 ，２2 ，３・・・ブラケット ４，６，８・・・閉断面部 ５，５′，７，７′・・・開断面部BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of one side of an automobile floor. FIG. 2 is a side cross-sectional view of the automobile floor in a disassembled state. FIG. 3 is a cross-sectional view of an extruded material. [Description of Signs] 1 ... Floor component 1 '... Extruded material 2 1 , 2 2 , 3 ... Brackets 4, 6, 8 ... Closed section 5, 5', 7, 7 ' ... Open section

フロントページの続き (72)発明者 杉尾 栄治 大阪府堺市海山町６丁224番地 昭和ア ルミニウム株式会社内 (72)発明者 田代 泰 大阪府堺市海山町６丁224番地 昭和ア ルミニウム株式会社内 (56)参考文献 特開 平５−262264（ＪＰ，Ａ) 特開 昭58−192616（ＪＰ，Ａ) 実開 平２−33183（ＪＰ，Ｕ) 実開 昭57−142681（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B62D 25/20 B21C 23/14 B62D 65/00 Continued on the front page (72) Inventor Eiji Sugio 6,224, Kaiyamacho, Sakai City, Osaka Prefecture (72) Inventor Yasushi Yasushi 6,224, Kaiyamacho, Sakai City, Osaka Prefecture Showa Aluminum Co., Ltd. (56) References JP-A-5-262264 (JP, A) JP-A-58-192616 (JP, A) JP-A-2-33183 (JP, U) JP-A-57-142681 (JP, U) 58) Surveyed field (Int. Cl. 7 , DB name) B62D 25/20 B21C 23/14 B62D 65/00

Claims (1)

(57)【特許請求の範囲】 【請求項１】 押出し方向と直交する断面を閉断面とし
て前記押出し方向に延びる複数の閉断面部（４，６，
８），ならびにそれらの閉断面部（４，６，８）間を結
んで屈曲した開断面部（５′，７′）を有する押出し材
（１′）を押出し成形する工程と， 該押出し材（１′）の屈曲した開断面部（５′，７′）
に開き加工を施して幅広のフロア構成材（１）を得る工
程と， 前記開き加工で開かれた各開断面部（５，７）の両側の
閉断面部（４，６；６，８）にそれぞれ在って前記押出
し方向に延びる係合溝（１０，１０；１３，１３）に，
その各開断面部（５，７）の開放部を塞ぐブラケット
（３；２1 ，２2）に形成した係止爪（９，９；１４，
１４）をそれぞれ係合させて，該ブラケット（３；
２ 1 ，２ 2 ）を前記フロア構成材（１）に結合すること
で，該各開断面部（５，７）がその長手方向の少なくと
も一部の領域で該ブラケット（３；２ 1 ，２ 2 ）により
開放部を塞がれて閉断面形状となるようにした工程とを
順次経過させて自動車用フロアを製造することを特徴と
する，自動車用フロアの製造方法。(57) Patent Claims: 1. A closed-section portion (4, 6 extending in the extrusion direction of the cross section perpendicular to the push-out direction closed section,
8) and a step of extruding an extruded material (1 ') having an open cross-section (5', 7 ') bent by connecting between the closed cross-sections (4, 6, 8); (1 ') bent open section (5', 7 ')
Obtaining a wide floor component (1) by subjecting the open section to open processing, and closing sections (4, 6; 6, 8) on both sides of each open section (5, 7) opened by the opening process. Each in the extrusion
Into the engagement grooves (10, 10; 13, 13) extending in the
Locking claw formed on; (2 1, 2 2 3) (9,9; its bracket for closing the open portion of the open cross section (5,7) 14,
14) is engaged with each of the brackets (3;
2 1 , 2 2 ) to the floor component (1)
In, respective open cross section (5,7) is the bracket at least <br/> also of a part of the longitudinal direction; the (3 2 1, 2 2)
It blocked the opening sequentially to elapse to the process set to be closed sectional shape, characterized in that to produce a floor for automobile, floor production method for a motor vehicle.
JP29362493A 1993-11-24 1993-11-24 Manufacturing method for automotive floor Expired - Fee Related JP3366085B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29362493A JP3366085B2 (en) 1993-11-24 1993-11-24 Manufacturing method for automotive floor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29362493A JP3366085B2 (en) 1993-11-24 1993-11-24 Manufacturing method for automotive floor

Publications (2)

Publication Number Publication Date
JPH07144661A JPH07144661A (en) 1995-06-06
JP3366085B2 true JP3366085B2 (en) 2003-01-14

Family

ID=17797125

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29362493A Expired - Fee Related JP3366085B2 (en) 1993-11-24 1993-11-24 Manufacturing method for automotive floor

Country Status (1)

Country Link
JP (1) JP3366085B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100372718B1 (en) * 2000-12-06 2003-02-15 기아자동차주식회사 Floor panel having reinforcement structure for a car
JP4855236B2 (en) * 2006-12-19 2012-01-18 本田技研工業株式会社 Body floor structure
DE102016101159A1 (en) * 2016-01-22 2017-07-27 Benteler Automobiltechnik Gmbh Method for producing a motor vehicle component from an extruded light metal profile

Also Published As

Publication number Publication date
JPH07144661A (en) 1995-06-06

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