JP5134649B2 - 掘削軸の振れ止めの落下防止装置 - Google Patents
掘削軸の振れ止めの落下防止装置 Download PDFInfo
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- JP5134649B2 JP5134649B2 JP2010135917A JP2010135917A JP5134649B2 JP 5134649 B2 JP5134649 B2 JP 5134649B2 JP 2010135917 A JP2010135917 A JP 2010135917A JP 2010135917 A JP2010135917 A JP 2010135917A JP 5134649 B2 JP5134649 B2 JP 5134649B2
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- steady rest
- wire
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- 230000002265 prevention Effects 0.000 title claims description 26
- 238000009412 basement excavation Methods 0.000 title claims description 25
- 239000000463 material Substances 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
2 リーダ
3 掘削軸
4 ワイヤ
5 振れ止め
6 ガイド部
7 ガイドレール
8 落下防止装置
9 支持片
10 横軸
11 作動バー
12 ばね材
13 ワイヤ取付け部
14 回動阻止部
Claims (1)
- 回転装置を上下移動自在に取付けたリーダと、回転装置に取付けられて回転駆動する掘削軸と、ワイヤにより吊下げられて上記掘削軸の周囲を囲んで掘削軸の横振れを規制するための筒状の振れ止めと、振れ止めに設けたガイド部と、ガイド部が上下移動自在に嵌め込まれるリーダに設けたガイドレールと、ワイヤが切断又は弛んだ際に振れ止めの落下を防止する落下防止装置とを備え、
上記落下防止装置が、リーダに設けた支持片と、振れ止めに横軸で回動自在に取付けた作動バーと、横軸を中心に作動バー下部がリーダに近づく方向に回動するようにばね力を付与するばね材と、作動バーの上端部に設けた上記振れ止めを吊下げる上記ワイヤを取付けるためのワイヤ取付け部と、ばね材のばね力で作動バーが回動した際に作動バーが斜めに傾斜した状態でそれ以上の回動を阻止する回動阻止部を備え、
振れ止めをワイヤで吊下げた際にばね材のばね力に抗して振れ止めが起立姿勢となることで、作動バーが支持片に当たることなく振れ止めが上下移動可能に構成され、
ワイヤが切断又は弛んだ際に、ばね材のばね力で作動バーが回動して回動阻止部で回動が阻止されて傾斜姿勢が保持された状態で、該傾斜姿勢に保持された作動バーの下端が支持片上に当接して振れ止めの落下を防止することを特徴とする掘削軸の振れ止めの落下防止装置。
Priority Applications (1)
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JP2010135917A JP5134649B2 (ja) | 2010-06-15 | 2010-06-15 | 掘削軸の振れ止めの落下防止装置 |
Applications Claiming Priority (1)
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JP2010135917A JP5134649B2 (ja) | 2010-06-15 | 2010-06-15 | 掘削軸の振れ止めの落下防止装置 |
Publications (2)
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JP2012001920A JP2012001920A (ja) | 2012-01-05 |
JP5134649B2 true JP5134649B2 (ja) | 2013-01-30 |
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Application Number | Title | Priority Date | Filing Date |
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JP2010135917A Active JP5134649B2 (ja) | 2010-06-15 | 2010-06-15 | 掘削軸の振れ止めの落下防止装置 |
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JP (1) | JP5134649B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6157883B2 (ja) * | 2013-03-12 | 2017-07-05 | 日本車輌製造株式会社 | 杭打機 |
KR101560212B1 (ko) | 2013-06-25 | 2015-10-14 | 신의페트라 주식회사 | 파일드라이버용 모듈형 강화 리더 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0540107Y2 (ja) * | 1987-12-04 | 1993-10-12 | ||
JPH0630294U (ja) * | 1992-09-22 | 1994-04-19 | 鉱研工業株式会社 | スクリューオーガ振れ止め装置 |
JP2001003361A (ja) * | 1999-06-25 | 2001-01-09 | R S Japan Reader:Kk | 杭打機 |
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