JPH0334126Y2 - - Google Patents
Info
- Publication number
- JPH0334126Y2 JPH0334126Y2 JP1985074094U JP7409485U JPH0334126Y2 JP H0334126 Y2 JPH0334126 Y2 JP H0334126Y2 JP 1985074094 U JP1985074094 U JP 1985074094U JP 7409485 U JP7409485 U JP 7409485U JP H0334126 Y2 JPH0334126 Y2 JP H0334126Y2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- end openings
- bent
- welding
- end portion
- 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
Links
- 238000005452 bending Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、自動車用シートのシートバツクフレ
ームの改良に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement of a seat back frame for an automobile seat.
（従来技術）
従来、第３図及び第４図ａに示すように、自動
車用シートのシートバツクフレーム１は、一本の
中空材をほぼ四辺形状に折り曲げて、突き合わせ
状態で相対する両端口部１ａ，１ｂの接合外周を
肉もり溶接して製造していたが、溶接肉もりが高
くでたり、フレーム１内に溶接スラグが入つて異
音を発生したりするという問題があつた。(Prior Art) Conventionally, as shown in FIGS. 3 and 4a, a seat back frame 1 for an automobile seat is made by bending a single hollow member into a substantially quadrilateral shape, and openings at both ends facing each other in abutting state. The frame was manufactured by welding the joint outer circumference of 1a and 1b, but there were problems in that the welding thickness was high and that welding slag got into the frame 1, causing abnormal noise.
そこで、第４図ｂに示すように、フレーム１の
一方の端口部１ａを、他方の端口部１ｂに対し
て、内接または外接するように接合するものが提
案されているが（実開昭58−62952号公報参照）、
端口部の絞り加工が厄介で組付作業性も悪いとい
う問題がある。 Therefore, as shown in FIG. 4b, it has been proposed that one end 1a of the frame 1 is joined to the other end 1b so as to be inscribed or circumscribed. 58-62952),
There is a problem in that the drawing process of the end portion is troublesome and the assembly workability is also poor.
また、第４図ｃ及び第４図ｄに示すように、フ
レーム１の両端口部１ａ，１ｂ間に、結合部材２
を設けたものが提案されているが（実開昭58−
61057号参照）、部品点数が増加し組付作業性も悪
いという問題があつた。 Further, as shown in FIGS. 4c and 4d, a connecting member 2 is provided between both end openings 1a and 1b of the frame 1.
It has been proposed to provide a
61057), the number of parts increased and the assembly workability was poor.
（考案の目的）
本考案は上記従来の問題を解消するためになさ
れたもので、加工が容易で組付作業性も良い結合
構造を採用したシートバツクフレームを提供する
ことを目的とするものである。(Purpose of the invention) The present invention was made to solve the above-mentioned conventional problems, and its purpose is to provide a seatback frame that adopts a joint structure that is easy to process and has good assembly workability. be.
（考案の構成）
このため本考案は、シートバツクフレームの両
端口部の一方もしくは双方の全周が半径方向内方
に折り曲げられていて、相対する両端口部の接合
外周を溶接して構成したものである。(Structure of the invention) For this reason, the present invention is constructed by bending the entire circumference of one or both of the end openings of the seatback frame inward in the radial direction, and welding the joint outer periphery of the opposing end openings. It is something.
（考案の効果）
本考案によれば、少なくとも一方の端部全周が
内方に折り曲げられた端口部を突き合わせて、そ
の接合外周を溶接するようにしたものであるか
ら、折り曲げ部分により溶接スラグがフレーム内
に侵入する恐れが少なく、また、折り曲げ部分の
Ｒ肩により溶接肉もりも低くてよく、さらに、、
折り曲げ部分があるので、溶接時の溶け落ちも生
じなくなる。このように、溶接が確実に行なえる
からアーク溶接でも足りる。(Effects of the invention) According to the invention, the end openings of which at least one of the ends is bent inward are brought together and the outer periphery of the joint is welded. There is less risk of intrusion into the frame, and the weld thickness is low due to the R shoulder of the bent part.Furthermore,
Since there is a bent part, there will be no burn-through during welding. In this way, arc welding is sufficient because welding can be performed reliably.
また、フレームの端口部を浅く折り曲げるだけ
であるから加工も容易であり、部品点数が増加す
ることもなく、さらに端口部の接合面が広いから
突き合わせ作業も容易であり、かつ、端口部が折
り曲げられているので鋭いエツジがなく組付作業
も安全である。 In addition, processing is easy because the end portion of the frame is simply bent shallowly, and the number of parts does not increase.Furthermore, the joint surface of the end portion is wide, making it easy to butt together, and the end portion can be bent. Since there are no sharp edges, assembly work is safe.
（実施例）
以下、本考案の実施例を添付図面について詳細
に説明する。(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
第１図ａに示すように、シートバツクフレーム
１の両端口部１ａ，１ｂの内、一方の端口部１ｂ
の全周を半径方向内方に浅く折り曲げないしは絞
つて折り曲げ部１b′に形成する。 As shown in FIG. 1a, one of the two end openings 1a and 1b of the seat back frame 1
The entire circumference is shallowly bent or squeezed radially inward to form a bent portion 1b'.
上記端口部１ｂに折り曲げ部１b′を形成するに
は、第２図ａに示すように、治具３の半球状凹部
３ａに、フレーム１の端口部１ｂを対向させ、つ
いで第２図ｂに示すように、端口部１ｂを凹部３
ａに押し付けるように圧力をかけると、端口部１
ｂが凹部３ａの曲面に沿つて内方に折り曲げられ
（絞り込まれ）てゆき、折り曲げ部１b′が容易に
形成される。 To form the bent portion 1b' in the end portion 1b, as shown in FIG. 2a, the end portion 1b of the frame 1 is opposed to the hemispherical recess 3a of the jig 3, and then as shown in FIG. As shown, the end portion 1b is inserted into the recess 3.
When pressure is applied to a, the end opening 1
b is bent inward (narrowed down) along the curved surface of the recess 3a, and a bent portion 1b' is easily formed.
そして、両端口部１ａ，１ｂを突き合わせた状
態で接合外周を溶接する。 Then, the joint outer periphery is welded with both end openings 1a and 1b abutted against each other.
この場合、折り曲げ部分のＲ肩に肉もりができ
るので溶接肉もりが低くてよく、ほぼ外周径内に
おさまる。 In this case, since the R shoulder of the bent portion is thickened, the welding thickness may be low and is approximately within the outer circumferential diameter.
また、端口部１ｂの接合面が広いので突き合わ
せ作業が容易であり、折り曲げ部分のＲ肩に溶接
すればよいので溶接作業も容易に行なえ、組付作
業性が良好である。 In addition, since the joint surface of the end portion 1b is wide, the butting work is easy, and since it is only necessary to weld to the R shoulder of the bent portion, the welding work can be easily performed, and the assembly workability is good.
上記実施例は、一方の端口部１ｂに折り曲げ部
１b′を形成したものであつたが、第１図ｂに示す
ように、双方の端口部１ａ，１ｂに折り曲げ部１
a′，１b′を形成してもよい。 In the above embodiment, the bent portion 1b' was formed at one end portion 1b, but as shown in FIG.
a', 1b' may also be formed.
この場合には、さらに溶接が確実で組付作業性
も一段と向上するようになる。 In this case, welding is more reliable and assembly workability is further improved.
第１図ａ及び第１図ｂは本考案に係るシートバ
ツクフレームの接合構造をそれぞれ示す第３図の
Ａ−Ａに相当する断面図、第２図ａ及び第２図ｂ
は折り曲げ部を形成する要領を示す断面図、第３
図はシートバツクフレームの斜視図、第４図ａ〜
第４図ｄは従来のシートバツクフレームの接合構
造をそれぞれ示す第３図のＡ−Ａに相当する断面
図である。
１……シートバツクフレーム、１ａ，１ｂ……
端口部、１a′，１b′……折り曲げ部。
Figures 1a and 1b are sectional views corresponding to A-A in Figure 3, respectively showing the joint structure of the seatback frame according to the present invention, and Figures 2a and 2b.
3 is a cross-sectional view showing how to form the bent portion.
The figure is a perspective view of the seat back frame, Figure 4a~
FIG. 4d is a sectional view corresponding to the line A-A in FIG. 3, showing the joint structure of a conventional seat back frame. 1... Seat back frame, 1a, 1b...
End portion, 1a', 1b'...bent portion.
Claims (1)
対する両端口部を結合してなるシートバツクフレ
ームにおいて、 上記両端口部の一方もしくは双方の全周が半径
方向内方に折り曲げられていて、相対する両端口
部の接合外周が相互に溶接されていることを特徴
とする自動車用シートのシートバツクフレーム。[Claims for Utility Model Registration] In a seat bag frame formed by bending a hollow member into a substantially quadrilateral shape and joining opposing end openings, the entire circumference of one or both of the end openings is radial. A seat back frame for an automobile seat, characterized in that it is bent inward and the joining outer peripheries of opposing end openings are welded to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985074094U JPH0334126Y2 (en) | 1985-05-17 | 1985-05-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985074094U JPH0334126Y2 (en) | 1985-05-17 | 1985-05-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61190249U JPS61190249U (en) | 1986-11-27 |
| JPH0334126Y2 true JPH0334126Y2 (en) | 1991-07-19 |
Family
ID=30614071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985074094U Expired JPH0334126Y2 (en) | 1985-05-17 | 1985-05-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0334126Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007260722A (en) * | 2006-03-28 | 2007-10-11 | Press Kogyo Co Ltd | Welded structure of cylindrical member |
-
1985
- 1985-05-17 JP JP1985074094U patent/JPH0334126Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61190249U (en) | 1986-11-27 |
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