JPS5947163B2 - Lock bolt with expansion anchor - Google Patents
Lock bolt with expansion anchorInfo
- Publication number
- JPS5947163B2 JPS5947163B2 JP11868972A JP11868972A JPS5947163B2 JP S5947163 B2 JPS5947163 B2 JP S5947163B2 JP 11868972 A JP11868972 A JP 11868972A JP 11868972 A JP11868972 A JP 11868972A JP S5947163 B2 JPS5947163 B2 JP S5947163B2
- Authority
- JP
- Japan
- Prior art keywords
- tapered
- blade
- cylinder
- tip
- anchor
- 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
Landscapes
- Dowels (AREA)
- Rock Bolts (AREA)
Description
【発明の詳細な説明】
ロックボルトは従来、締付は軸先端にテーパー筒を押し
込んで、締付力によってテーパー筒を傘状羽根体に圧入
して羽根体の羽根を開傘して孔の周囲の土壌に羽根を喰
い込ましてアンカーとして使用していた。[Detailed Description of the Invention] Conventionally, lock bolts were tightened by pushing a tapered tube into the tip of the shaft, and using the tightening force, the tapered tube was press-fitted into an umbrella-shaped blade body, and the blades of the blade body were opened to open the hole. The feathers were dug into the surrounding soil and used as anchors.
本発明のものは、上記のようなロックボルトの締付力に
よるテーパー筒の羽根体円筒への圧入による開傘アンカ
ーに加えて更に別個の円筒部が分離散開する羽根体をテ
ーパー筒の圧入によって分離散開して、岩盤に羽根を喰
い込ませ、両者のロックボルトの緊締力に加えて更に一
層強力な締付力を増加させるようにしたものである。In addition to the opening anchor that is formed by press-fitting the tapered cylinder into the blade body cylinder using the tightening force of the lock bolt as described above, the blade body in which a separate cylindrical part is separated and spread is formed by press-fitting the tapered cylinder. The bolts are separated and spread out, and the blades bite into the rock, increasing the tightening force even stronger in addition to the tightening force of both rock bolts.
即ち、テーパー筒と傘状羽根体だけで締付けを行うと、
岩盤が軟岩のときは羽根体の羽根の拡がシによる羽根と
岩盤の摩擦によってアンカー作用を行うが、この締付け
は軟岩の強度の状態によっては締付によるアンカー作用
が充分でないことが多い。In other words, if tightening is performed using only the tapered tube and the umbrella-shaped blade,
When the bedrock is soft rock, an anchoring action is performed by the friction between the blade and the bedrock due to the expansion of the blades of the blade body, but this tightening is often insufficient depending on the strength of the soft rock.
従って、このようなロックボルトに加えて別個の分離散
開可能な羽根体をテーパー筒で分離散開すると、最前部
の分離散開可能な羽根体は締付けで開傘状になった後、
羽根体本体が破れ、羽根部分のみならず本体の円筒部分
も分離破壊するので羽根部分も円筒部もそれぞれ岩盤へ
拡く喰い込むことになシ強力な締付は力を有することと
なシ、最後部の羽根は開傘状態となり、締付けも対抗状
となｈ１先部のアンカー効果と後部のアンカー効果とア
ンカー効果が相乗して一層強力となる。Therefore, in addition to such a lock bolt, if a separate deployable blade body is separated and deployed using a tapered tube, the frontmost deployable blade body becomes an umbrella shape by tightening, and then
The main body of the blade will be torn, and not only the blade part but also the cylindrical part of the main body will be separated and destroyed, so both the blade part and the cylindrical part will spread and dig into the bedrock.Strong tightening will have force, The blades at the rear end are in an open state, and the tightening is also in opposition, and the anchor effect at the tip of h1, the anchor effect at the rear, and the anchor effect combine to become even stronger.
本発明を図示の実施例によって説明すると、締付軸９の
先端に先太状８のテーパー筒７を取付け、続いて後端に
開口状６のテーパー杆５を取り付けた分離羽根２・・・
を先部で、割溝３付状にバネ板４゜４・・・で連結した
分離散開羽根円筒１を嵌入するとともに、同締付軸９の
締付部にストッパー１０を軸止１１し、その後端に羽根
１３，１３・・・を溝１４．１４で並設したシェル１２
を軸挿するとともに、その羽根１３，１３・・・を開傘
するように先細状１６を有するテーパー筒１５を軸に嵌
挿したアンカ一部分とを併設した散開アンカー付ロック
ボルトに係る。The present invention will be described with reference to the illustrated embodiment. A separating blade 2 has a tapered cylinder 7 with a thick tip 8 attached to the tip of a tightening shaft 9, and a tapered rod 5 with an opening 6 attached to the rear end...
At the tip, insert a separate diverging blade cylinder 1 connected with a split groove 3 by a spring plate 4, 4, etc., and a stopper 10 is fixed 11 to the tightening part of the tightening shaft 9, Shell 12 with blades 13, 13... arranged in parallel with grooves 14, 14 at its rear end
This relates to a rock bolt with a spread anchor, which is inserted into the shaft and is also provided with an anchor portion in which a tapered cylinder 15 having a tapered shape 16 is fitted into the shaft so that the blades 13, 13, . . . are opened.
他の分離散開羽根円筒の実施例として２１は羽根体２・
・・を両者間に溝３をおいて、シェル状に構成されるよ
うにバネ板４を羽根体２と相隣る羽根体２との前端面に
溶接した部分、１７は押し管を示す。As another embodiment of the separated spread blade cylinder, 21 indicates the blade body 2.
. . is a portion where the spring plate 4 is welded to the front end surface of the blade body 2 and the adjacent blade body 2 so as to form a shell shape with a groove 3 between them, and 17 indicates a push tube.
本発明は上記のような構成であるから、本ロックボルト
な軟岩の穿孔内に入れたのち、テーパー筒１５の後方に
押し管１７を当て締付は装置（図示しない）によって締
付けると、テーパー筒１５の先端が傘形シェル１２内に
押し込まれ、傘形シェル１２はストッパー１０に当るま
で押し込まれストッパー１０に当ったのち、テーパー筒
１５が傘形シェル１２内に嵌入されテーパー筒１５の先
細状１６によって傘形シェル１２の羽根１３は開き、羽
根１３は穿孔軟岩壁に喰い込む。Since the present invention has the above-described configuration, after inserting the present rock bolt into a hole in soft rock, the push tube 17 is placed behind the tapered tube 15 and tightened by a device (not shown), and the taper tube is tightened by a device (not shown). 15 is pushed into the umbrella-shaped shell 12, and the umbrella-shaped shell 12 is pushed until it hits the stopper 10, and after hitting the stopper 10, the tapered tube 15 is fitted into the umbrella-shaped shell 12, and the tapered tube 15 becomes tapered. 16 opens the blades 13 of the umbrella shell 12, which bite into the perforated soft rock wall.
更に別個の分離散開羽根円筒１も締付けによって軸９が
分離散開羽根円筒１にテーパー筒７の先太状８を圧嵌入
させ、散開羽根円筒１は開口６のテーパー杆５によって
開傘され穿孔壁に逆戻乃止め状に停止され、上記テーパ
ー筒７の圧嵌入とともに散開羽根円筒１は円筒部又は円
筒部の取付バネ板４が破断されて円筒１の羽根２は開傘
するとともに円筒部が散開して、テーパー節７の外周に
展開散開して、円筒１の羽根２、円筒部が穿孔壁に緊締
着されることとなる。Further, the separate diverging blade cylinder 1 is also tightened so that the shaft 9 press-fits the tapered tip 8 of the tapered cylinder 7 into the separate spreading blade cylinder 1, and the spreading blade cylinder 1 is opened by the taper rod 5 of the opening 6 and the perforated wall is opened. When the tapered cylinder 7 is press-fitted, the cylindrical part or the mounting spring plate 4 of the cylindrical part is broken, and the blades 2 of the cylinder 1 are opened and the cylindrical part is stopped. The blades 2 of the cylinder 1 and the cylindrical part are tightly fastened to the perforation wall by being spread out and spread around the outer periphery of the tapered joint 7.
本発明は上記のように穿孔内にロックボルトを嵌入して
締付けるものであるが、開傘羽根状にアンカーされるア
ンカ一部分と、分離散開羽根部分をシェル内部にテーパ
ー筒を嵌入させて押拡げて分離散開してアンカーするア
ンカ一部分によってロックボルトの締付けのだめの基礎
が確定する。In the present invention, the lock bolt is inserted into the hole and tightened as described above, but the part of the anchor that is anchored in the shape of an opening blade and the part of the separated opening blade are pushed and expanded by inserting a tapered tube inside the shell. The foundation for tightening the rock bolt is determined by the anchor portions that are separated and anchored.
しかも、分離散開羽根部分の羽根が分離散開して、穿孔
壁に喰い込むことは岩盤が軟らかいときには喰い込みが
強力となり一層すぐれたアンカー効果を得られる特徴を
有するものである。Moreover, when the rock is soft, the blades of the separated spreading blade part are separated and bite into the perforation wall, and when the rock is soft, the cutting is strong and a better anchoring effect can be obtained.
図面は本発明の実施例を示すもので、第１図は本発明散
開アンカー付ロックボルトの分解、側面図を示すもので
、各部はＡ−Ａ線、Ｂ−Ｂ線によって連結されている。
第２図は散開羽根円筒の斜面図である。
１・・・分離散開羽根円筒、２・・・羽根体、３・・・
割溝、４・・・バネ板、５・・・テーパー杆、６・・・
開口状、７・・・テーパー筒、９・・・締付軸、１２・
・・シェル、１３・・・羽根、１５・・・テーパー筒。The drawings show an embodiment of the present invention, and FIG. 1 shows an exploded side view of a rock bolt with a spreading anchor of the present invention, in which each part is connected by lines AA and BB. FIG. 2 is a perspective view of the spread blade cylinder. 1... Separated spread blade cylinder, 2... Blade body, 3...
Split groove, 4...spring plate, 5...taper rod, 6...
Opening shape, 7... Tapered cylinder, 9... Tightening shaft, 12.
...Shell, 13...Blade, 15...Tapered tube.
Claims (1)
根体の後端に開口状のテーパー杆を取シ付けた複数の羽
根体をその先部でバネ板などによシ連結して形成した散
開羽根円筒をその先部とテーパー筒の後端とを対向させ
て締付軸に嵌入させて分離散開アンカーを構成するとと
もに、締付軸の後方に、固定ストッパーに停止される複
数の羽根体円筒の後端にテーパー筒の先端を対向嵌入さ
せて散開開傘アンカーを構成することを特徴とする散開
アンカー付ロックボルト。1. A plurality of blade bodies each having an open tapered rod attached to the rear end of the blade body are connected to a tapered cylinder fixed to a tightening shaft in a tapered shape with a thick tip, and the tip of the blade body is connected by a spring plate or the like. A separate spreader anchor is constructed by inserting the spreader blade cylinder formed by the above into the tightening shaft with its tip and the rear end of the tapered cylinder facing each other. A lock bolt with a spread-out anchor, characterized in that a tip of a tapered tube is fitted into the rear end of a blade body cylinder to form a spread-out umbrella anchor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11868972A JPS5947163B2 (en) | 1972-11-27 | 1972-11-27 | Lock bolt with expansion anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11868972A JPS5947163B2 (en) | 1972-11-27 | 1972-11-27 | Lock bolt with expansion anchor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4975964A JPS4975964A (en) | 1974-07-22 |
| JPS5947163B2 true JPS5947163B2 (en) | 1984-11-17 |
Family
ID=14742733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11868972A Expired JPS5947163B2 (en) | 1972-11-27 | 1972-11-27 | Lock bolt with expansion anchor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5947163B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5174673U (en) * | 1974-12-10 | 1976-06-11 | ||
| JPH0786365B2 (en) * | 1987-12-18 | 1995-09-20 | 株式会社ミヤナガ | Manufacturing method of sleeve |
| US4919579A (en) * | 1987-08-24 | 1990-04-24 | Kabushiki Kaisha Miyanaga | Anchor construction and method of manufacture |
| WO1989006322A1 (en) * | 1988-01-08 | 1989-07-13 | Kabushikikaisha Miyanaga | Expanding sleeve of anchor bolt and method of manufacturing same |
| JP6614380B1 (en) | 2019-03-20 | 2019-12-04 | 信越半導体株式会社 | Single crystal production equipment |
-
1972
- 1972-11-27 JP JP11868972A patent/JPS5947163B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4975964A (en) | 1974-07-22 |
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