JP3836769B2 - Vehicle seat device - Google Patents

Vehicle seat device Download PDF

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Publication number
JP3836769B2
JP3836769B2 JP2002254022A JP2002254022A JP3836769B2 JP 3836769 B2 JP3836769 B2 JP 3836769B2 JP 2002254022 A JP2002254022 A JP 2002254022A JP 2002254022 A JP2002254022 A JP 2002254022A JP 3836769 B2 JP3836769 B2 JP 3836769B2
Authority
JP
Japan
Prior art keywords
rail
nut member
vehicle seat
upper rail
seat device
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 - Lifetime
Application number
JP2002254022A
Other languages
Japanese (ja)
Other versions
JP2004090765A (en
Inventor
幸史 山田
隆己 寺田
英樹 小林
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.)
Toyota Motor Corp
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
Toyota Motor Corp
Aisin Corp
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 Aisin Seiki Co Ltd, Toyota Motor Corp, Aisin Corp filed Critical Aisin Seiki Co Ltd
Priority to JP2002254022A priority Critical patent/JP3836769B2/en
Publication of JP2004090765A publication Critical patent/JP2004090765A/en
Application granted granted Critical
Publication of JP3836769B2 publication Critical patent/JP3836769B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明は、レールの前後端に溶接されたナット部材を有する車両用シート装置に関する。
【0002】
【従来の技術】
車両用のシートは、フロアに固定されたロアレールに対し、前後方向に摺動自在に配されたアッパレールの前後端部のフランジ部にボルト止めされるか、或いはフロアに固定されたレールにボルト止めされる。
車両の前後方向に延在するアッパレールの前後端部のフランジ部に、完成されたシートを搭載し、ボルト止めするには、スペースの関係からシートの前後の斜め上方よりインパクトレンチにてボルトを締め付けるのが一般的である。
【0003】
このように限られたスペースを利用してのシートのアッパレールへの固定のため、特開平11−1189号公報は、アッパレールの前後端部にフランジ部を設けることを提案する。その例を図4に示す。アッパレール1は、2枚のプレートを断面略逆T字状に成形しかつ車両の前後方向に延在する形状を有す。ロアレール2は、断面略U字状をなす本体部と、アッパレール1のシュー部3を受けるガイド部4とを有す。ロアレール2はフロア5にボルト止めされる。
【0004】
アッパレール1の向かい合う縦壁部6,6は、その前後端部を一方に曲げ成形した曲げ部7,7を有し、両曲げ部を重ね合わせてフランジ部8としている。フランジ部8の中央部にボルトを受けるネジ孔9を設ける。
シート(図示なし)をアッパレール1に固定させるには、シートのブラケットをフランジ部8に合わせ、ボルトをネジ孔9に螺合させる手段を用いる。
【0005】
これとは別に、特開平11−99855号公報は、アッパレール1の縦壁部6,6の頂部を水平に折り曲げてフランジ部8とし、水平なフランジ部にネジ孔9を穿けることを提案する。
【0006】
【発明が解決しようとする課題】
前述した従来例では、フランジ部に穿設したネジ孔が、アッパレールの中心を通る縦壁部からオフセットした位置に存在する。
このため、シートに外力が作用したとき、この外力によりフランジ部及び縦壁部に曲げや捩れが生じ、フランジ部の変形を招きシートの姿勢を変化させることになりかねない。
【0007】
それ故に、本発明は、前述した従来技術の不具合を解消させることを解決すべき課題とする。
【0008】
【課題を解決するための手段】
本発明は、前述した課題を解決するために、基本的には、レールの縦壁部の中心と一致するようナット部材のネジ孔の中心を配し、該ナット部材をレールの端面部の段部に溶接する技術的手段を採用する。好ましくは、レール部材はアッパレール即ちスライドレールである。
【0009】
このような基本的手段の採用は、シートに外力が作用し、この外力がナット部材に伝達されても、ナット部材のネジ孔中心が縦壁部の中心に一致していることから、この外力は縦壁部の座屈荷重として受け、ナット部材に曲げや捩れが生じない。よって、シートの強度を高く維持できる。
【0010】
本発明によれば、車両用シートをレールにボルト止めする車両用シート装置において、レールの向かい合う対の縦壁部の端面に形成された段部と、該段部に着座しかつレールに溶接されるナット部材とを有し、ナット部材のネジ孔中心がレールの縦壁部間の中心に向けられている車両用シート装置が提供される。
【0011】
好ましくは、レールがフロアに固定されたロアレールに対し摺動自在なアッパレールであり、ナット部材がアッパレールの前後端面に配される。
【0012】
さらに好ましくは、ナット部材がアッパレールの両外側面をはさむ対のフィン部を有する。ナット部材を水平面に対して傾斜して配することもでき、又、アッパレールの頂壁部の一部をナット部材の上面に延出させることもできる。
【0013】
【発明の実施の形態】
図1に示すように、スライドレール即ちアッパレール10はスチール板をプレス成形したもので、向かい合う縦壁部11,11と、縦壁部11,11の下部に一体に設けた断面略U字状の摺動部12,12を有し、摺動部12,12はシュー又はベアリングを保持し、ロアレールのガイド部に嵌合される(図4参照)。アッパレール10の縦壁部11,11の前後端部に段部13,13を形成する。この段部13,13にナット部材14を着座させ、ナット部材14をアッパレール10に溶接する。
【0014】
ナット部材14は、ネジ孔15を有する方形の本体部16と、本体部16の両側から縦壁部11,11の外側面に沿うように延在する対の離間したフィン部17,17とからなる。ネジ孔15は本体部16の中央部に形成される。
ナット部材14は、本体部16の下面と後面とが段部13,13に着座し、フィン部17,17が縦壁部11,11の両外側面をはさむようにしてアッパレール10の前後端面部に取り付ける。次いで、ナット部材14をアッパレール10に溶接させる。
【0015】
ナット部材14のネジ孔15の中心は、対の縦壁部11,11の中心に一致し、縦壁部11,11の間隔がボルトのネジ部を受けるに充分な大きさであれば、本体部16のネジ孔15からシートを取り付けるボルトのネジ部が延出してもよい。もし、この間隔が小さければ、本体部16をボルトのネジ部を受けるに充分な大きさとする。
シートに作用する外力は、縦壁部11,11間の中心に向けられかつ段部13,13で受けるため、ナット部材14のアッパレール10に対する曲げや捩れが無く、強度上きわめて有利である。
【0016】
図1に示す例では、段部13,13をアッパレール10の長手方向にフロアに対して水平な面とこの面に直角な面とで形成したが、水平な面を図2に示すように傾けてテーパ面としてもよい。この例では、ナット部材14がアッパレール10に対して傾いた形で溶接され、ボルトの斜め上方からのナット部材14への螺合を可能にする。
【0017】
図3に示す例は、ナット部材14の本体部16の上面にアッパレール10の頂壁部の一部18を延出させているものである。この例では、本体部16を上下ではさむ形となり、ナット部材14とアッパレール10との溶接面をより多く確保できる。
【0018】
図2と図3の例においても、ナット部材14のネジ孔15の中心は、アッパレール10の縦壁部11,11間の中心に向けられ、シートを介して外力が作用しても、ナット部材14やアッパレールに曲げや捩れが生じない。又、ナット部材14は多くの面を介してアッパレール10に接しているので、局部的応力の発生は無い。
【図面の簡単な説明】
【図1】図1は、本発明の例の部分斜視図である。
【図2】図2は、ナット部材を斜めにアッパレールに取り付けた例を示す正面図である。
【図3】図3は、アッパレールの頂壁部の一部をナット部材の上面に延出させた例を示す部分斜視図である。
【図4】図4は、従来例を示す側面図である。
【符号の説明】
10 アッパレール
11 縦壁部
13 段部
14 ナット部材
15 ネジ孔
16 本体部
17 フィン部
18 頂壁部の一部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle seat device having nut members welded to front and rear ends of a rail.
[0002]
[Prior art]
Vehicle seats are bolted to the flanges at the front and rear ends of the upper rail that is slidable in the front-rear direction relative to the lower rail fixed to the floor, or bolted to the rail fixed to the floor. Is done.
To mount the finished seat on the front and rear flanges of the upper rail that extends in the longitudinal direction of the vehicle and to fasten it with bolts, tighten the bolt with an impact wrench from diagonally above and behind the seat due to space constraints. It is common.
[0003]
In order to fix the seat to the upper rail using such a limited space, Japanese Patent Laid-Open No. 11-1189 proposes to provide flange portions at the front and rear ends of the upper rail. An example is shown in FIG. The upper rail 1 has a shape in which two plates are formed in a substantially inverted T-shaped cross section and extend in the front-rear direction of the vehicle. The lower rail 2 has a main body portion having a substantially U-shaped cross section and a guide portion 4 that receives the shoe portion 3 of the upper rail 1. The lower rail 2 is bolted to the floor 5.
[0004]
The opposing vertical wall portions 6 and 6 of the upper rail 1 have bending portions 7 and 7 formed by bending the front and rear end portions thereof in one direction, and both bending portions are overlapped to form a flange portion 8. A screw hole 9 for receiving a bolt is provided at the center of the flange portion 8.
In order to fix the seat (not shown) to the upper rail 1, means for aligning the bracket of the seat with the flange portion 8 and screwing the bolt into the screw hole 9 is used.
[0005]
Apart from this, Japanese Patent Laid-Open No. 11-99855 proposes that the top portions of the vertical wall portions 6 and 6 of the upper rail 1 are bent horizontally to form flange portions 8 and screw holes 9 can be formed in the horizontal flange portions. .
[0006]
[Problems to be solved by the invention]
In the conventional example described above, the screw hole drilled in the flange portion exists at a position offset from the vertical wall portion passing through the center of the upper rail.
For this reason, when an external force is applied to the seat, the external force causes bending and twisting of the flange portion and the vertical wall portion, which may cause deformation of the flange portion and change the posture of the seat.
[0007]
Therefore, this invention makes it the subject which should be solved to eliminate the malfunction of the prior art mentioned above.
[0008]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention basically arranges the center of the screw hole of the nut member so as to coincide with the center of the vertical wall portion of the rail, and the nut member is arranged at the step of the end surface portion of the rail. Adopt technical means of welding to the part. Preferably, the rail member is an upper rail or a slide rail.
[0009]
The adoption of such a basic means is that even if an external force acts on the seat and this external force is transmitted to the nut member, the screw hole center of the nut member coincides with the center of the vertical wall portion. Is received as a buckling load of the vertical wall, and the nut member is not bent or twisted. Therefore, the strength of the sheet can be maintained high.
[0010]
According to the present invention, in the vehicle seat device that bolts the vehicle seat to the rail, the step formed on the end surface of the pair of vertical wall portions facing each other of the rail, the seat sitting on the step and welded to the rail There is provided a vehicle seat device in which a screw hole center of the nut member is directed to a center between the vertical wall portions of the rail.
[0011]
Preferably, the rail is an upper rail that is slidable with respect to the lower rail fixed to the floor, and the nut members are disposed on the front and rear end surfaces of the upper rail.
[0012]
More preferably, the nut member has a pair of fin portions that sandwich both outer side surfaces of the upper rail. The nut member can be arranged to be inclined with respect to the horizontal plane, and a part of the top wall portion of the upper rail can be extended to the upper surface of the nut member.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, a slide rail or upper rail 10 is formed by press-molding a steel plate, and has a substantially U-shaped cross section provided integrally with opposite vertical wall portions 11 and 11 and lower portions of the vertical wall portions 11 and 11. The sliding parts 12 and 12 hold a shoe or a bearing and are fitted to the guide part of the lower rail (see FIG. 4). Step portions 13 and 13 are formed at front and rear end portions of the vertical wall portions 11 and 11 of the upper rail 10. A nut member 14 is seated on the step portions 13 and 13, and the nut member 14 is welded to the upper rail 10.
[0014]
The nut member 14 includes a rectangular main body portion 16 having a screw hole 15 and a pair of spaced apart fin portions 17 and 17 extending from both sides of the main body portion 16 along the outer surface of the vertical wall portions 11 and 11. Become. The screw hole 15 is formed at the center of the main body 16.
The nut member 14 is seated on the front and rear end surfaces of the upper rail 10 so that the lower surface and the rear surface of the main body portion 16 are seated on the step portions 13 and 13, and the fin portions 17 and 17 sandwich the outer side surfaces of the vertical wall portions 11 and 11. Install. Next, the nut member 14 is welded to the upper rail 10.
[0015]
If the center of the screw hole 15 of the nut member 14 coincides with the center of the pair of vertical wall portions 11 and 11 and the interval between the vertical wall portions 11 and 11 is large enough to receive the screw portion of the bolt, the main body The screw portion of the bolt for attaching the sheet may extend from the screw hole 15 of the portion 16. If this interval is small, the main body 16 is made large enough to receive the threaded portion of the bolt.
Since the external force acting on the seat is directed to the center between the vertical wall portions 11 and 11 and is received by the step portions 13 and 13, the nut member 14 is not bent or twisted with respect to the upper rail 10 and is extremely advantageous in terms of strength.
[0016]
In the example shown in FIG. 1, the stepped portions 13 and 13 are formed by a plane that is horizontal to the floor in the longitudinal direction of the upper rail 10 and a plane that is perpendicular to the plane. However, the horizontal plane is inclined as shown in FIG. 2. It is good also as a taper surface. In this example, the nut member 14 is welded so as to be inclined with respect to the upper rail 10, so that the nut member 14 can be screwed into the nut member 14 from obliquely above.
[0017]
In the example shown in FIG. 3, a part 18 of the top wall portion of the upper rail 10 is extended on the upper surface of the main body portion 16 of the nut member 14. In this example, the main body portion 16 is sandwiched between the upper and lower portions, and a larger number of welding surfaces between the nut member 14 and the upper rail 10 can be secured.
[0018]
2 and 3 also, the center of the screw hole 15 of the nut member 14 is directed to the center between the vertical wall portions 11 and 11 of the upper rail 10, and even if an external force acts through the seat, the nut member 14 and the upper rail are not bent or twisted. Further, since the nut member 14 is in contact with the upper rail 10 through many surfaces, no local stress is generated.
[Brief description of the drawings]
FIG. 1 is a partial perspective view of an example of the present invention.
FIG. 2 is a front view showing an example in which a nut member is obliquely attached to an upper rail.
FIG. 3 is a partial perspective view showing an example in which a part of the top wall portion of the upper rail is extended to the upper surface of the nut member.
FIG. 4 is a side view showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Upper rail 11 Vertical wall part 13 Step part 14 Nut member 15 Screw hole 16 Main part 17 Fin part 18 A part of top wall part

Claims (5)

車両用シートをレールにボルト止めする車両用シート装置において、レールの向かい合う対の縦壁部の端面に形成された段部と、該段部に着座しかつレールに溶接されるナット部材とを有し、ナット部材のネジ孔中心がレールの縦壁部間の中心に向けられている車両用シート装置。A vehicle seat device for bolting a vehicle seat to a rail has a step formed on end faces of a pair of vertical wall portions facing each other of the rail, and a nut member seated on the step and welded to the rail. A vehicle seat device in which the screw hole center of the nut member is directed to the center between the vertical wall portions of the rail. レールがフロアに固定されたロアレールに対し摺動自在なアッパレールであり、ナット部材がアッパレールの前後端面に配される請求項1記載の車両用シート装置。The vehicle seat device according to claim 1, wherein the rail is an upper rail that is slidable with respect to the lower rail fixed to the floor, and the nut members are disposed on the front and rear end surfaces of the upper rail. ナット部材がアッパレールの両外側面をはさむ対のフィン部を有する請求項2記載の車両用シート装置。The vehicle seat device according to claim 2, wherein the nut member has a pair of fin portions that sandwich both outer side surfaces of the upper rail. ナット部材が水平面に対して傾斜して配されている請求項3記載の車両用シート装置。The vehicle seat device according to claim 3, wherein the nut member is inclined with respect to a horizontal plane. アッパレールの頂壁部の一部がナット部材の上面に延出する請求項1記載の車両用シート装置。The vehicle seat device according to claim 1, wherein a part of the top wall portion of the upper rail extends to the upper surface of the nut member.
JP2002254022A 2002-08-30 2002-08-30 Vehicle seat device Expired - Lifetime JP3836769B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002254022A JP3836769B2 (en) 2002-08-30 2002-08-30 Vehicle seat device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002254022A JP3836769B2 (en) 2002-08-30 2002-08-30 Vehicle seat device

Publications (2)

Publication Number Publication Date
JP2004090765A JP2004090765A (en) 2004-03-25
JP3836769B2 true JP3836769B2 (en) 2006-10-25

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ID=32059869

Family Applications (1)

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JP2002254022A Expired - Lifetime JP3836769B2 (en) 2002-08-30 2002-08-30 Vehicle seat device

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8245994B2 (en) 2009-01-29 2012-08-21 Aisin Seiki Kabushiki Kaisha Seat apparatus for vehicle
JP6127729B2 (en) 2013-05-30 2017-05-17 アイシン精機株式会社 Vehicle seat slide device
JP6225656B2 (en) 2013-11-14 2017-11-08 アイシン精機株式会社 Vehicle seat slide device
JP6920890B2 (en) * 2017-06-05 2021-08-18 トヨタ車体精工株式会社 Seat slide device

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