JPS6420996U

JPS6420996U -

Info

Publication number: JPS6420996U
Application number: JP11706087U
Authority: JP
Priority date: 1987-07-30
Filing date: 1987-07-30
Publication date: 1989-02-01

Description

[Brief explanation of the drawing]

第１図は本考案に係る裏当てリングの一例を示
す平面図、第２図は第１図のＡ―Ａ線矢視縦断側
面図、第３図は従来の裏当てリングの一例を示す
縦断側面図、第４図は従来の他の裏当てリングの
一例を示す縦断側面図である。１：上杭、２：下杭、３：金属リング、３′：
リング胴体、４：舌片、５：止め金具、６：スリ
ツト、７：開先、８：本考案裏当てリング、９：
ルート間隙、１０：テーパー。 Fig. 1 is a plan view showing an example of a backing ring according to the present invention, Fig. 2 is a longitudinal cross-sectional side view taken along the line A--A in Fig. 1, and Fig. 3 is a longitudinal cross-sectional view showing an example of a conventional backing ring. FIG. 4 is a longitudinal sectional side view showing an example of another conventional backing ring. 1: Upper stake, 2: Lower stake, 3: Metal ring, 3':
Ring body, 4: tongue piece, 5: stopper, 6: slit, 7: groove, 8: backing ring of the present invention, 9:
Root gap, 10: Tapered.

補正昭６２．１２．２３実用新案登録請求の範囲を次のように補正する
。Amendment December 23, 1986 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】鋼管製の下杭２と上杭１とを突き合せ溶接する
際に、胴体３′下部を下杭２の溶接端内部に嵌入
し、胴体３′上部を上杭１の溶接端内部に嵌入し
て開先７底部に当接する円筒形の金属リング３に
、胴体３′中央部の同一外径線上に一定間隔で胴
体から外方へ水平に突出するルート間隙９保持用
の複数の突部４…と、胴体３′を上端から下端へ
斜めに横断するスリツト６と、胴体３′の内面部
に上記スリツト６を跨ぐように当着してスリツト
の開きを固定する止め金具５とを設け、かつリン
グ胴体３′の上部先端を先細りテーパー１０状に
形成したことを特徴とする鋼管杭の突き合せ溶接
用裏当リング。図面の簡単な説明を次のように補正する。明細書第１０頁３行目「４：舌片」とあるを「
４：突部」に補正します。[Claim for Utility Model Registration] When butt welding the lower pile 2 and the upper pile 1 made of steel pipes, the lower part of the body 3' is inserted into the welded end of the lower pile 2, and the upper part of the body 3' is attached to the upper pile. A cylindrical metal ring 3 that fits inside the welded end of the weld 1 and abuts the bottom of the groove 7 is provided with root gaps 9 that project horizontally outward from the body at regular intervals on the same outer diameter line at the center of the body 3'. A plurality of holding protrusions 4..., a slit 6 that diagonally crosses the body 3' from the upper end to the lower end, and abuts against the inner surface of the body 3' so as to straddle the slit 6 to fix the opening of the slit. A backing ring for butt welding of steel pipe piles, characterized in that the ring body 3' is provided with a stopper 5, and the upper end of the ring body 3' is formed into a tapered shape 10. The brief description of the drawing has been amended as follows. Page 10 of the specification, line 3, “4: Tongue piece” is replaced with “
4: Correct to "protrusion".

Claims

[Scope of utility model registration request]

When butt welding the lower pile 2 and the upper pile 1 made of steel pipes, the lower part of the body 3' is inserted into the welded end of the lower pile 2, and the upper part of the body 3' is inserted into the welded end of the upper pile 1. A plurality of tongue pieces 4 for maintaining the root gap 9 are attached to a cylindrical metal ring 3 that abuts the bottom of the groove 7, and project horizontally outward from the body 3' at regular intervals on the same outer diameter line at the center of the body 3'. ..., a slit 6 that diagonally crosses the body 3' from the upper end to the lower end, and a stopper 5 that abuts on the inner surface of the body 3' so as to straddle the slit 6 to fix the opening of the slit, A backing ring for butt welding of steel pipe piles, characterized in that the upper end of the ring body 3' is formed into a tapered 10 shape.