JPH0425904U - - Google Patents
Info
- Publication number
- JPH0425904U JPH0425904U JP6609990U JP6609990U JPH0425904U JP H0425904 U JPH0425904 U JP H0425904U JP 6609990 U JP6609990 U JP 6609990U JP 6609990 U JP6609990 U JP 6609990U JP H0425904 U JPH0425904 U JP H0425904U
- Authority
- JP
- Japan
- Prior art keywords
- expansion board
- shape
- edge
- outer shape
- slit
- 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.)
- Pending
Links
- 230000008602 contraction Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000007796 conventional method Methods 0.000 description 1
Description
第１図は本考案の一実施例を示した一部切欠正
面図、第２図は第１図の切断線Ａ−Ａに沿う断面
図、第３図は第１図の一部を示した拡大正面図、
第４図は従来の技術の一例を示した一部切欠正面
図、第５図は第４図の平面図である。
１……ボイラケーシング、２……スリツト、２
ａ……ストツプホール、３……エキスパンシヨン
ボード、３ａ……先端部の縁部、３ｂ……中間部
の縁部。
Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2 is a sectional view taken along cutting line A-A in Fig. 1, and Fig. 3 is a part of Fig. 1. Enlarged front view,
FIG. 4 is a partially cutaway front view showing an example of the conventional technique, and FIG. 5 is a plan view of FIG. 4. 1...Boiler casing, 2...Slit, 2
a... Stop hole, 3... Expansion board, 3a... Edge of tip, 3b... Edge of middle part.
Claims (1)
イラケーシングに設けられた熱伸縮吸収用のスリ
ツトの周囲を気密的にカバーして前記ボイラケー
シングに周縁部を溶接しているエキスパンシヨン
ボードにおいて、該エキスパンシヨンボードの先
端部の縁部の外形が、中間部の縁部の外形よりも
大きくなつていることを特徴とする、エキスパン
シヨンボード端部の形状。 ２ エキスパンシヨンボードの先端部の外形が、
スリツトの端部のストツプホールの中心を中心に
した円弧になつている請求項１記載のエキスパン
シヨンボード端部の形状。[Claims for Utility Model Registration] 1. A method for airtightly covering the periphery of a slit for absorbing thermal expansion and contraction provided in a boiler casing that airtightly covers an opening in a boiler furnace wall so as to cover the peripheral edge of the boiler casing. An expansion board end portion of an expansion board to be welded, characterized in that the outer shape of the edge of the leading end of the expansion board is larger than the outer shape of the edge of the intermediate portion. shape. 2 The outer shape of the tip of the expansion board is
2. The shape of the end of the expansion board according to claim 1, wherein the shape of the end of the expansion board is an arc centered on the center of the stop hole at the end of the slit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6609990U JPH0425904U (en) | 1990-06-25 | 1990-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6609990U JPH0425904U (en) | 1990-06-25 | 1990-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0425904U true JPH0425904U (en) | 1992-03-02 |
Family
ID=31598527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6609990U Pending JPH0425904U (en) | 1990-06-25 | 1990-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425904U (en) |
-
1990
- 1990-06-25 JP JP6609990U patent/JPH0425904U/ja active Pending