JPS61206798U - - Google Patents
Info
- Publication number
- JPS61206798U JPS61206798U JP7445486U JP7445486U JPS61206798U JP S61206798 U JPS61206798 U JP S61206798U JP 7445486 U JP7445486 U JP 7445486U JP 7445486 U JP7445486 U JP 7445486U JP S61206798 U JPS61206798 U JP S61206798U
- Authority
- JP
- Japan
- Prior art keywords
- locking
- driving rod
- rectangular plate
- bolt
- tube
- 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
- 238000009412 basement excavation Methods 0.000 claims 2
- 239000011435 rock Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Description
第１図はボルト支承体の斜視図、第２図は一部
を切欠けた正面図、第３図は一実施例を示す説明
図である。
ａ……支保用ボルト杆、ｂ……孔係止体、１…
…打込体、７……係止筒、９……係止凹部。
FIG. 1 is a perspective view of the bolt support, FIG. 2 is a partially cutaway front view, and FIG. 3 is an explanatory diagram showing one embodiment. a... Supporting bolt rod, b... Hole locking body, 1...
... Driving body, 7... Locking cylinder, 9... Locking recess.
Claims (1)
設し、この打込杆１の所望位置の外周に係止筒７
を設けた掘削用支保ボルトにおいて、長方形板と
この長方形板下縁に地山係止片８を一定間隔毎に
突出連設した打抜部材の長方形板を両端縁を少し
離して筒状に巻いて弾性を有する係止筒７を形成
し、この係止筒７の連設された地山係止片８を斜
め下方に向けて放射状に起こして孔係止体ｂを形
成し、この孔係止体ｂの係止筒７を打込杆１の外
周に形成した係止凹部９に嵌合係止して孔係止体
ｂを打込杆１に取り付けたことを特徴とする掘削
用支保ボルト。 A driving rod 1 is extended and connected to the tip of the supporting bolt rod a, and a locking tube 7 is attached to the outer periphery of the driving rod 1 at a desired position.
In the support bolt for excavation, a rectangular plate and a rectangular plate of a punched member having rock locking pieces 8 protruding from the lower edge of the rectangular plate at regular intervals are rolled into a cylinder shape with both ends slightly separated. to form a locking tube 7 having elasticity, and raise the connected rock locking pieces 8 of the locking tube 7 radially diagonally downward to form a hole locking body b. An excavation support characterized in that the hole locking body b is attached to the driving rod 1 by fitting and locking the locking cylinder 7 of the stopper b into a locking recess 9 formed on the outer periphery of the driving rod 1. bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7445486U JPS61206798U (en) | 1986-05-17 | 1986-05-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7445486U JPS61206798U (en) | 1986-05-17 | 1986-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61206798U true JPS61206798U (en) | 1986-12-27 |
Family
ID=30614768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7445486U Pending JPS61206798U (en) | 1986-05-17 | 1986-05-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61206798U (en) |
-
1986
- 1986-05-17 JP JP7445486U patent/JPS61206798U/ja active Pending