JP2001248153A - Columnar body - Google Patents
Columnar bodyInfo
- Publication number
- JP2001248153A JP2001248153A JP2000056781A JP2000056781A JP2001248153A JP 2001248153 A JP2001248153 A JP 2001248153A JP 2000056781 A JP2000056781 A JP 2000056781A JP 2000056781 A JP2000056781 A JP 2000056781A JP 2001248153 A JP2001248153 A JP 2001248153A
- Authority
- JP
- Japan
- Prior art keywords
- columnar body
- groove
- key
- shaft
- columnar
- 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.)
- Granted
Links
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば、支持杭、
地滑り抑止杭、土留め柱列杭、構造体の柱等に使われる
柱状体に関し、詳しくは、一方の柱状体に筒部を設ける
と共に、他方の柱状体端部に軸部を設けて、柱状体軸芯
方向で隣り合う柱状体の前記筒部と前記軸部とを嵌合自
在に構成し、前記筒部の筒部内周面部に、周方向に沿う
内向き溝部を形成すると共に、前記軸部の軸部外周面部
に、周方向に沿う外向き溝部を、その軸部外周面部に嵌
合した前記筒部内周面部の前記内向き溝部に対向するよ
うに形成し、前記内向き溝部と前記外向き溝部とに跨っ
てキー部材を嵌め込んで、互いに嵌合した隣り合う柱状
体の前記筒部と前記軸部とを抜け止め状態で接続自在に
構成してあるキー連結部を備えた柱状体に関する。TECHNICAL FIELD The present invention relates to a support pile,
For pillars used for landslide prevention piles, earth retaining column row piles, pillars of structures, etc., in detail, a cylinder is provided on one pillar and a shaft is provided at the end of the other pillar, The cylindrical portion and the shaft portion of the columnar body adjacent to each other in the body axis direction are configured to be freely fittable, and an inward groove portion along a circumferential direction is formed on an inner peripheral surface portion of the cylindrical portion of the cylindrical portion. An outer groove along the circumferential direction is formed on the outer peripheral surface of the shaft of the portion so as to face the inward groove of the cylindrical inner peripheral surface fitted to the outer peripheral surface of the shaft. A column having a key connecting portion which is configured so that the key member is fitted over the outward groove portion so that the cylindrical portion and the shaft portion of the adjacent columnar members fitted to each other can be freely connected in a state of being prevented from falling off. About the body.
【０００２】[0002]
【従来の技術】従来、この種の柱状体としては、図８に
示すように、互いに嵌合した柱状体Ａ１，Ａ２に対して
縦断面上で作用する軸方向力の作用線Ｓ上よりも柱状体
Ａ１，Ａ２の径方向内側にキー連結部Ｒが配置形成され
たものがあった。2. Description of the Related Art Conventionally, as shown in FIG. 8, a columnar body of this type has a larger axial force acting on a columnar body A1 and A2 fitted on each other than a line S acting on a longitudinal section. In some cases, a key connecting portion R is arranged and formed radially inside the columnar bodies A1 and A2.
【０００３】[0003]
【発明が解決しようとする課題】上述した従来の柱状体
によれば、キー連結部Ｒを、互いに嵌合した柱状体Ａ
１，Ａ２に対する縦断面上で作用する引き抜き力の作用
線Ｓ上よりも柱状体の半径方向内側に配置形成されてあ
るため、例えば、柱状体Ａ１，Ａ２に引き抜き力が作用
したときには、図６（ロ）の作用説明図に示すように、
キー連結部Ｒに対して引き抜き力がズレた位置で作用す
るため、キー１８に回転モーメントが作用して外れ易く
なり、筒部端部１ＴではＢ方向に曲げモーメントが働い
て筒部端部１Ｔが外側に変形し易くなると共に、軸部端
部２ＴではＡ方向に曲げモーメントが働いて軸部端部２
Ｔが内側に変形し易くなる。このとき、引き抜き力が強
く作用して上記両モーメントが大きく働いた場合には、
内向き溝部６と外向き溝部１２とに跨って嵌め込んであ
るキー部材Ｋの係合が外れて、筒部１と軸部２との接続
が解除される虞があった。According to the above-mentioned conventional columnar member, the key connecting portion R is connected to the columnar member A fitted to each other.
1 and A2 are arranged radially inward of the columnar body with respect to the line of action S of the pullout force acting on the longitudinal section, and for example, when the pullout force acts on the columnar bodies A1 and A2, FIG. As shown in FIG.
Since the pulling force acts on the key connecting portion R at a displaced position, a rotational moment acts on the key 18 so that the key 18 is easily disengaged, and a bending moment acts on the cylinder end 1T in the direction B to cause the cylinder end 1T. Is easily deformed outward, and a bending moment acts on the shaft end 2T in the direction A, so that the shaft end 2T is deformed.
T is easily deformed inward. At this time, when the pulling force acts strongly and both of the above moments act greatly,
There is a possibility that the key member K fitted over the inward groove portion 6 and the outward groove portion 12 is disengaged, and the connection between the cylindrical portion 1 and the shaft portion 2 is released.
【０００４】従って、本発明の目的は、上記問題点を解
消し、柱状体に引き抜き力が強く作用したとしても、筒
部端部及び軸部端部が変形するのを防止して、内向き溝
部と外向き溝部とに跨って嵌め込んであるキー部材の係
合が外れるのを防止し、筒部と軸部との接続が解除され
る虞のない柱状体を提供するところにある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems and to prevent the end of the cylindrical portion and the end of the shaft from being deformed even if a strong pulling force acts on the columnar body. An object of the present invention is to provide a columnar body that prevents a key member fitted over a groove and an outward groove from being disengaged, and that does not have a possibility of disconnecting a connection between a cylinder and a shaft.
【０００５】[0005]
【課題を解決するための手段】〔構成〕請求項１の発明
の特徴構成は図１，４〜６（イ）に例示するごとく、一
方の柱状体に筒部１を設けると共に、他方の柱状体端部
に軸部２を設けて、柱状体軸芯Ｘ方向で隣り合う柱状体
Ａ１，Ａ２の前記筒部１と前記軸部２とを嵌合自在に構
成し、前記筒部１の筒部内周面部４に、周方向に沿う内
向き溝部６を形成すると共に、前記軸部２の軸部外周面
部１０に、周方向に沿う外向き溝部１２を、その軸部外
周面部１０に嵌合した前記筒部内周面部４の前記内向き
溝部６に対向するように形成し、前記内向き溝部６と前
記外向き溝部１２とに跨ってキー部材Ｋを嵌め込んで、
互いに嵌合した隣り合う柱状体Ａ１，Ａ２の前記筒部１
と前記軸部２とを抜け止め状態で接続自在に構成してあ
るキー連結部Ｒを備えた柱状体であって、互いに嵌合し
た隣り合う柱状体Ａ１，Ａ２に対して縦断面上で柱状体
壁部に作用する軸方向力の作用線Ｓ上に、前記キー連結
部Ｒを配置形成してあるところにある。[Structure] As shown in FIGS. 1, 4 to 6 (a), a feature of the first aspect of the present invention is to provide a cylindrical portion 1 on one column and a columnar portion on the other. A shaft portion 2 is provided at a body end portion, and the cylindrical portion 1 and the shaft portion 2 of the columnar bodies A1 and A2 adjacent to each other in the column axis X direction are configured to be freely fittable. An inward groove 6 along the circumferential direction is formed in the inner circumferential surface portion 4, and an outward groove 12 along the circumferential direction is fitted to the outer circumferential surface portion 10 of the shaft portion of the shaft portion 2 to the outer circumferential surface portion 10 of the shaft portion. The key member K is formed so as to face the inward groove portion 6 of the cylindrical inner peripheral surface portion 4, and is fitted over the inward groove portion 6 and the outward groove portion 12.
The cylindrical portions 1 of adjacent columnar bodies A1 and A2 fitted to each other.
And a key connecting portion R which is configured to be freely connectable to the shaft portion 2 in a retaining state, and is formed in a vertical cross section with respect to the adjacent columnar members A1 and A2 fitted to each other. The key connecting portion R is arranged and formed on the line of action S of the axial force acting on the body wall.
【０００６】尚、上述のように、図面との対照を便利に
するために符号を記したが、該記入により本発明は添付
図面の構成に限定されるものではない。[0006] As described above, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the accompanying drawings.
【０００７】〔作用及び効果〕請求項１の発明により、
互いに嵌合した隣り合う柱状体に対して縦断面上で柱状
体壁部に作用する軸方向力の作用線上に、前記キー連結
部を配置形成してあるから、柱状体に引き抜き力が作用
したとしても、筒部端部及び軸部端部が変形するのを防
止することができるようになった。つまり、本件だと、
例えば、柱状体に引き抜き力が作用したときには、図６
（イ）の作用説明図に示すように、キー連結部Ｒに対し
て引き抜き力が真っ直ぐに作用し、従来例のごとく、筒
部端部１Ｔが外側へ変形するモーメントや、軸部端部２
Ｔが内側へ変形するモーメントが働き難くなるから、内
向き溝部６と外向き溝部１２とに跨って嵌め込んである
キー部材Ｋの係合が外れるといった心配がない。その結
果、引き抜き力が強く作用したとしても、筒部と軸部と
の接続が解除される虞のない柱状体を提供することがで
きるようになった。[Operation and Effect] According to the first aspect of the present invention,
Since the key connecting portion is arranged and formed on the line of action of the axial force acting on the columnar body wall in the longitudinal section with respect to the adjacent columnar bodies fitted with each other, a pulling force acts on the columnar body. Also, it is possible to prevent the end of the cylindrical portion and the end of the shaft from being deformed. In other words, in this case,
For example, when a pull-out force acts on the columnar body, FIG.
As shown in the operation explanatory diagram of (a), the pulling force acts straight on the key connecting portion R, and as in the conventional example, the moment when the cylindrical end 1T is deformed outward and the shaft end 2T.
Since the moment that T is deformed inward hardly acts, there is no fear that the key member K fitted over the inward groove 6 and the outward groove 12 is disengaged. As a result, it is possible to provide a columnar body that is not likely to be disconnected from the cylindrical portion and the shaft portion even if a strong pulling force acts.
【０００８】[0008]
【発明の実施の形態】以下、本発明の実施の形態につい
て柱状体の一例である鋼管製の支持杭について図面を参
照して説明する。尚、図面において従来例と同一の符号
で表示した部分は、同一又は相当の部分を示している。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings, with reference to the drawings. In the drawings, portions denoted by the same reference numerals as those of the conventional example indicate the same or corresponding portions.
【０００９】図1 、４に示すように、Ａ１は上支持杭、
Ａ２は下支持杭である。上支持杭Ａ１には、下支持杭Ａ
２と結合される下端に雌形の筒部１が溶接３により下方
に突出して設けられ、また、下支持杭Ａ２には、上支持
杭Ａ１と結合される上端に、上記筒部１に貫入、嵌合す
る軸部２が溶接３により上方に突出して設けられてい
る。As shown in FIGS. 1 and 4, A1 is an upper support pile,
A2 is a lower support pile. The upper support pile A1 has a lower support pile A
A female cylinder 1 is provided at the lower end connected to the upper support pile A1 at the lower end connected to the upper support pile A1 so as to penetrate into the cylindrical part 1 at the lower end connected to the upper support pile A1. The fitting shaft portion 2 is provided so as to protrude upward by welding 3.
【００１０】前記筒部１は、内径が上支持杭Ａ１、下支
持杭Ａ２の管厚中心径と略同径とした筒状をなしてお
り、その内面は後述する軸部２が嵌合する筒部内周面部
４に形成されているとともに、その筒部内周面部４にお
ける筒部１の基端側に形成の段部１Ｄには、周溝５が設
けられている。そして、前記筒部内周面部４には、上下
に間隔をおいて断面方向に複数の内向き溝部６が周設さ
れている。また、筒部１の下端には、周方向に間隔をお
いて複数の切欠部７が設けられている。The tubular portion 1 has a tubular shape whose inner diameter is substantially the same as the center diameter of the pipe thickness of the upper support pile A1 and the lower support pile A2, and the inner surface thereof is fitted with a shaft portion 2 described later. A circumferential groove 5 is provided in a step portion 1D formed on the inner peripheral surface portion 4 of the cylindrical portion and formed on the proximal end side of the cylindrical portion 1 in the inner peripheral surface portion 4 of the cylindrical portion. A plurality of inward grooves 6 are formed in the inner peripheral surface 4 of the cylindrical portion at intervals in the vertical direction in the cross-sectional direction. A plurality of notches 7 are provided at the lower end of the cylindrical portion 1 at intervals in the circumferential direction.
【００１１】前記軸部２は、外径が上支持杭Ａ１、下支
持杭Ａ２の外径と同径な部分と前記外径よりも径方向外
方に膨出させた部分とで形成された基軸部８に続き、外
周が上支持杭Ａ１、下支持杭Ａ２の管厚中心径と略同径
とした前記筒部１の筒部内周面部４と係接する軸部外周
面部１０に形成した嵌挿部９により形成され、軸部先端
部２Ｓには筒部１の周溝５と嵌合する突条１１が設けら
れている。そして、嵌挿部９外周の軸部外周面部１０に
は、筒部１の内向き溝部６と対応する位置に外向き溝部
１２が周設されている。また、基軸部８の上部には、筒
部１の筒部先端部１Ｓと接合する接合凹部１３が周設さ
れているとともに、その周方向に間隔をおいて、筒部１
の切欠部７と対応する位置に、切欠部７と同じ厚さで上
下に所要の深さを有する切欠凹部１４が設けられ、各切
欠凹部１４の奥壁部には複数のネジ孔１５が設けられて
いる。The shaft portion 2 is formed of a portion having an outer diameter equal to the outer diameter of the upper support pile A1 and the lower support pile A2, and a portion bulging radially outward from the outer diameter. Following the base shaft portion 8, fitting formed on a shaft portion outer circumferential surface portion 10 that engages with the cylindrical inner circumferential surface portion 4 of the cylindrical portion 1 whose outer periphery has substantially the same diameter as the tube thickness center diameter of the upper support pile A 1 and the lower support pile A 2. A projection 11 formed by the insertion portion 9 and fitted to the peripheral groove 5 of the cylindrical portion 1 is provided at the shaft end 2S. An outward groove 12 is provided in a position corresponding to the inward groove 6 of the cylindrical portion 1 around the shaft outer peripheral surface 10 around the outer periphery of the fitting portion 9. At the upper part of the base shaft portion 8, a joining concave portion 13 is formed to be joined to the tip portion 1 </ b> S of the tubular portion 1 of the tubular portion 1.
A notch recess 14 having the same thickness as the notch 7 and having a required depth up and down is provided at a position corresponding to the notch 7, and a plurality of screw holes 15 are provided in the back wall of each notch 14. Have been.
【００１２】そして、図１，２，４に示すように、上記
の各内向き溝部６には、筒部１の外周より、周方向に間
隔をおいて複数設けられたネジ孔１６が連通されている
とともに、その内向き溝部６内には、ネジ孔１６に螺合
させた、セットボルト１７の操作によって、内向き溝部
６内から、嵌挿部９の外向き溝部１２内と内向き溝溝６
内に跨る位置まで移動可能な円弧キー１８（キー部材Ｋ
の一例）が収容されている。この円弧キー１８を移動さ
せる構造は、例えば図５に示すように、セットボルト１
７により行う。セットボルト１７は、その基端部にネジ
孔１６と螺合する右ネジの頭部１７ａを有し、先端部に
円弧キー１８に設けた左ネジ（逆ネジ）と螺合する尾部
１７ｂを有しており、セットボルト１７を正（右）回転
させてネジ込めば円弧キー１８が前進し、逆（左）回転
させれば円弧キー１８が後退するようになっている。な
お、円弧キー１８を移動させる構造はこれに限定される
ものではない。As shown in FIGS. 1, 2, and 4, a plurality of screw holes 16 provided at intervals in the circumferential direction from the outer periphery of the cylindrical portion 1 communicate with the inward groove portions 6 described above. The inward groove 6 is screwed into the screw hole 16 and is set in the outward groove 12 and the inward groove from the inward groove 6 by the operation of the set bolt 17. Groove 6
Key 18 (key member K that can be moved to a position
Is stored. The structure for moving the arc key 18 is, for example, as shown in FIG.
7 is performed. The set bolt 17 has a right-hand screw head 17a screwed into the screw hole 16 at the base end thereof, and a tail 17b screwed into a left-hand screw (reverse screw) provided on the arc key 18 at the front end. When the set bolt 17 is turned forward (right) and screwed in, the arc key 18 moves forward, and when the set bolt 17 is turned counterclockwise (left), the arc key 18 moves backward. The structure for moving the arc key 18 is not limited to this.
【００１３】また、支持杭を埋設する際に、中堀工法、
ソイルセメント合成杭工法、回転埋設杭工法等の支持杭
を回転圧入により沈設する工法や沈設にあたって支持杭
に回転を与えるその他の工法においては、図１，３，４
に示すように、上支持杭Ａ１の筒部１と下支持杭Ａ２の
軸部２との相対回転を防止するための回転抑止キー２０
を設ける。前記回転抑止キー２０は、図７に示すよう
に、筒部１の切欠部７と軸部２の切欠凹部１４とにわた
って嵌合する形状に形成するとともに、切欠凹部１４に
設けられたネジ孔１５と対応する位置にボルト挿通孔２
１を設ける。When burying the support pile, the Nakabori method,
Figures 1, 3 and 4 show the construction method of sinking support piles by rotary press-fitting, such as the soil cement composite pile method and the rotary buried pile method, and other methods of rotating the support piles when submerging.
As shown in FIG. 5, a rotation inhibiting key 20 for preventing relative rotation between the cylindrical portion 1 of the upper support pile A1 and the shaft portion 2 of the lower support pile A2.
Is provided. As shown in FIG. 7, the rotation suppressing key 20 is formed into a shape that fits over the notch 7 of the cylindrical portion 1 and the notch recess 14 of the shaft 2, and a screw hole 15 provided in the notch recess 14. Bolt insertion hole 2 at the position corresponding to
1 is provided.
【００１４】上支持杭Ａ１と下支持杭Ａ２とを縦継ぎす
るには、上支持杭Ａ１をクレーンで吊り上げ、下支持杭
Ａ２の直上に運んで吊り降ろし、筒部１の中に軸部２を
挿入して行けば、筒部１の周溝５と軸部２の軸部先端部
２Ｓの突溝１１とが接合すると共に、筒部１の筒部先端
部１Ｓと接合凹部１３とが接合し、上支持杭Ａ１と下支
持杭Ａ２とが嵌合されることになる。そして、上支持杭
Ａ１の回転調整により、筒部1 の切欠部７を軸部２の切
欠凹部１４に合致させる。In order to vertically connect the upper support pile A1 and the lower support pile A2, the upper support pile A1 is lifted by a crane, transported just above the lower support pile A2, lowered, and the shaft 2 is inserted into the cylindrical portion 1. Is inserted, the circumferential groove 5 of the cylindrical portion 1 and the protruding groove 11 of the shaft portion distal end 2S of the shaft portion 2 are joined, and the cylindrical portion distal end 1S of the tube portion 1 and the joining recess 13 are joined. Then, the upper support pile A1 and the lower support pile A2 are fitted. Then, the notch 7 of the cylindrical portion 1 is matched with the notch recess 14 of the shaft portion 2 by adjusting the rotation of the upper support pile A1.
【００１５】その後は、切欠部７と切欠凹部１４にわた
って回転抑止キー２０を嵌め込み、取付ボルト２２をネ
ジ孔１５にネジ込んで固定する。それにより上下両支持
杭Ａ１、Ａ２は相対回転不能に結合されることになる。
続いて、セットボルト１７を螺進させて、内向き溝部６
に収まっている円弧キー１８を外向き溝部１２に向けて
押し入れてやる。それによって、円弧キー１８は図５の
鎖線で示すように両溝部６，１２に跨って係合すること
になり、両柱状体Ａ１、Ａ２は円弧キー１８を介して軸
芯Ｘ方向への抜き差しが不能に結合されることになる。Thereafter, the rotation inhibiting key 20 is fitted over the notch 7 and the notch recess 14, and the mounting bolt 22 is screwed into the screw hole 15 and fixed. As a result, the upper and lower support piles A1 and A2 are connected to each other so that they cannot rotate relative to each other.
Subsequently, the set bolt 17 is screwed into the inward groove portion 6.
Of the arc key 18 housed in the outer groove 12 is pushed in. As a result, the arc key 18 is engaged across the two groove portions 6 and 12 as shown by the chain line in FIG. 5, and the two columnar bodies A1 and A2 are inserted and removed in the axis X direction through the arc key 18. Will be impossiblely combined.
【００１６】この円弧キー１８を介しての結合では、引
き抜き力は内向き溝部６にある両溝側壁のうち、軸芯Ｘ
方向における筒部先端側の溝側壁から円弧キー１８を介
した剪断力として外向き溝部１２の軸芯Ｘ方向における
軸部先端側の溝側壁に伝達される。また、圧縮力は内向
き溝部６にある両溝側壁のうち、軸芯Ｘ方向における筒
部基端側の溝側壁から円弧キー１８を介した剪断力とし
て外向き溝部１２の軸芯Ｘ方向における軸部基端側の溝
側壁に伝達される。このとき、図１に示すように、内向
き溝部６と外向き溝部１２とに跨って円弧キー１８を嵌
め込んだキー連結部Ｒが、互いに嵌合した隣り合う支持
杭Ａ１，Ａ２に対して縦断面上で作用する軸方向力の作
用線Ｓ上に配置形成されているため、支持杭Ａ１，Ａ２
に引き抜き力が作用したときには、図６（イ）の作用説
明図に示すごとく、キー連結部Ｒに対して引き抜き力が
真っ直ぐに作用し、図８、及び図６（ロ）に示す作用説
明図に示す従来例のごとく、筒部端部１Ｔが外側へ変形
するモーメントや、軸部端部２Ｔが内側へ変形するモー
メントが働き難くなるから、内向き溝部６と外向き溝部
１２とに跨って嵌め込んである円弧キー１８にも回転モ
ーメントが発生しないので、係合が外れるといった心配
がなくなる。尚、軸方向力が作用する方向を、便宜上作
用線Ｓと記載したが、互いに嵌合した隣り合う支持杭Ａ
１，Ａ２に対する縦断面上において線状に見えるだけで
あって、柱状体の横断面上において、柱状体の肉厚内の
略中央に、ある程度の巾を有した支持杭の形状に沿った
連なりとして存在するものである。In the connection via the arc key 18, the pulling force is applied to the shaft center X of the two groove side walls in the inward groove 6.
The shear force is transmitted from the groove side wall on the tip end side of the cylindrical portion in the direction through the arc key 18 to the groove side wall on the tip end side of the shaft portion in the axis X direction of the outward groove portion 12. In addition, the compressive force is generated as shearing force via the arc key 18 from the groove side wall on the base end side of the cylindrical portion in the axis X direction of the two groove side walls in the inward groove portion 6 in the axis X direction of the outward groove portion 12. It is transmitted to the groove side wall on the shaft base end side. At this time, as shown in FIG. 1, the key connecting portion R in which the arc key 18 is fitted over the inward groove portion 6 and the outward groove portion 12 is connected to the adjacent support piles A1, A2 fitted to each other. Since they are arranged and formed on the line of action S of the axial force acting on the vertical section, the support piles A1, A2
When a pull-out force acts on the key connecting portion R, as shown in FIG. 6A, the pull-out force acts straight on the key connecting portion R, and the operation is shown in FIGS. 8 and 6B. As in the conventional example shown in FIG. 1, since the moment that the cylindrical end 1T deforms outward and the moment that the shaft end 2T deforms inward hardly acts, it is straddled between the inward groove 6 and the outward groove 12. Since no rotational moment is generated in the fitted arc key 18, there is no fear that the engagement is released. The direction in which the axial force acts is described as a line of action S for convenience.
1, a line that only looks linear on the longitudinal section with respect to A2, and runs along the shape of the support pile having a certain width at the approximate center within the thickness of the column on the cross section of the column. It exists as.
【００１７】〔別実施形態〕以下に他の実施形態を説明
する。 〈１〉キー部材Ｋは先の実施形態で説明した円弧キー１
８に限るものではなく、例えば、Ｃ形状の弾性リングキ
ーを、内向き溝部もしくは外向き溝部内に収容してお
き、筒部と軸部との嵌合操作に伴って、内向き溝部と外
向き溝部に跨る状態に嵌入する構成のものにおいても本
発明は適用可能である。 〈２〉キー部材の数、及び、そのキー部材に対応する内
向き溝部と外向き溝部の数は先の実施形態で説明した夫
々２つづつ設けた構成のものに限るものではなく、１つ
以上であればその数は任意である。 〈３〉上記実施形態では柱状体を回転圧入により沈設す
る工法や、沈設にあたって柱状体に回転を与えるその他
の工法において、上下両柱状体の相対回転を抑止する回
転抑止キーを設けた例について説明したが、本発明は上
記実施形態に限定されるものではなく、地中に形成した
縦穴に落とし込む地滑り抑止杭や、建て込みに使用する
構造体の柱等のように回転抑止キーを設ける必要のない
ものにも適用できる。つまり、キー部材で連結した柱状
体において、引き抜き力が作用するものに対して本発明
は適用可能であり、その他の構成は任意である。[Other Embodiments] Other embodiments will be described below. <1> The key member K is the arc key 1 described in the above embodiment.
For example, a C-shaped elastic ring key is housed in the inward groove or the outward groove, and the inward groove and the outer groove are connected with the fitting operation between the cylinder and the shaft. The present invention is also applicable to a configuration that fits in a state of straddling the direction groove. <2> The number of key members, and the numbers of inward groove portions and outward groove portions corresponding to the key members are not limited to those of the configuration provided two by two as described in the above embodiment, but one. If so, the number is arbitrary. <3> In the above embodiment, an example in which a rotation inhibiting key for suppressing relative rotation of the upper and lower columns is provided in the method of sinking the columns by rotary press-fitting or in other methods of rotating the columns at the time of sinking. However, the present invention is not limited to the above embodiment, and it is necessary to provide a rotation prevention key such as a landslide prevention pile dropped into a vertical hole formed in the ground or a pillar of a structure used for building. It can be applied to things that do not exist. That is, the present invention can be applied to a columnar body connected by a key member to which a pull-out force acts, and other configurations are arbitrary.
【図１】本発明の第1 実施例を示す半部截断側面図FIG. 1 is a half cutaway side view showing a first embodiment of the present invention.
【図２】図1 イ−イ線の半部平断面図FIG. 1 is a half plan sectional view taken along line II of FIG.
【図３】図１ロ−ロ線の半部平断面図FIG. 3 is a half sectional plan view of the roll line of FIG. 1;
【図４】上柱状体と下柱状体の端部を離して示した半部
側断面図FIG. 4 is a half sectional side view showing an upper column and a lower column separated from each other;
【図５】円弧キーによる係合部分の拡大側断面図FIG. 5 is an enlarged side sectional view of an engagement portion using an arc key.
【図６】キー連結部における作用説明図FIG. 6 is an explanatory diagram of an operation in a key connecting portion.
【図７】回転抑止キーによる係合部分を示す斜視図FIG. 7 is a perspective view showing an engagement portion by a rotation suppression key.
【図８】従来例を示す半部截断側面図FIG. 8 is a half cutaway side view showing a conventional example.
１ 筒部 ２ 軸部 ４ 筒部内周面部 ６ 内向き溝部 １０ 軸部外周面部 １２ 外向き溝部 Ｒ キー連結部 Ｋ キー部材 Ｘ 軸芯 Ａ１ 上柱状体 Ａ２ 下柱状体 DESCRIPTION OF SYMBOLS 1 Cylindrical part 2 Shaft part 4 Cylindrical part inner peripheral surface part 6 Inward groove part 10 Shaft part outer peripheral surface part 12 Outward groove part R key connection part K key member X axis core A1 Upper column A2 Lower column
フロントページの続き (72)発明者 西海 健二 千葉県富津市新富20―１ 新日本製鐵株式 会社内 (72)発明者 大槻 貢 千葉県市川市塩浜１−６ 株式会社クボタ 市川工場内 (72)発明者 相和 明男 千葉県市川市塩浜１−６ 株式会社クボタ 市川工場内 (72)発明者 青木 功 東京都港区赤坂６丁目13番７号 株式会社 テノックス内 (72)発明者 堀切 節 東京都港区赤坂６丁目13番７号 株式会社 テノックス内 Ｆターム(参考） 2D041 AA02 DB02 DB12 DB13 EA03 FA14 Continued on the front page (72) Inventor Kenji Nishikai 20-1 Shintomi, Futtsu-shi, Chiba Nippon Steel Corporation (72) Inventor Mitsugu Otsuki 1-6, Shiohama, Ichikawa-shi, Chiba Kubota Ichikawa Plant (72) Inventor Akio Aiwa 1-6 Shiohama, Ichikawa-shi, Chiba Pref. Kubota Ichikawa Plant (72) Inventor Isao Aoki 6-13-7 Akasaka, Minato-ku, Tokyo Tenox Inc. (72) Inventor Horikiri Setsu Tokyo 6-13-7 Akasaka, Minato-ku F-term in Tenox Co., Ltd. (Reference) 2D041 AA02 DB02 DB12 DB12 DB13 EA03 FA14
Claims (1)
方の柱状体端部に軸部を設けて、柱状体軸芯方向で隣り
合う柱状体の前記筒部と前記軸部とを嵌合自在に構成
し、前記筒部の筒部内周面部に、周方向に沿う内向き溝
部を形成すると共に、前記軸部の軸部外周面部に、周方
向に沿う外向き溝部を、その軸部外周面部に嵌合した前
記筒部内周面部の前記内向き溝部に対向するように形成
し、前記内向き溝部と前記外向き溝部とに跨ってキー部
材を嵌め込んで、互いに嵌合した隣り合う柱状体の前記
筒部と前記軸部とを抜け止め状態で接続自在に構成して
あるキー連結部を備えた柱状体であって、互いに嵌合し
た隣り合う柱状体に対して縦断面上で柱状体壁部に作用
する軸方向力の作用線上に、前記キー連結部を配置形成
してある柱状体。A cylindrical portion is provided on one of the columnar bodies, and a shaft portion is provided on an end of the other columnar body, and the cylindrical portion of the columnar body adjacent to the columnar body in the axial direction of the columnar body is fitted with the shaft portion. The cylindrical portion of the cylindrical portion is formed to have an inward groove along the circumferential direction, and the outer circumferential surface of the shaft portion has an outward groove along the circumferential direction. It is formed so as to face the inward groove portion of the inner peripheral surface portion of the cylindrical portion fitted to the outer peripheral surface portion, and a key member is fitted over the inward groove portion and the outward groove portion, and the adjacent key members are fitted to each other. A column having a key connecting portion that is configured so that the cylindrical portion and the shaft portion of the column can be connected in a detachable manner in a longitudinal direction with respect to the adjacent column fitted with each other. A columnar body in which the key connecting portion is arranged and formed on a line of action of an axial force acting on a columnar body wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000056781A JP3679964B2 (en) | 2000-03-02 | 2000-03-02 | Columnar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000056781A JP3679964B2 (en) | 2000-03-02 | 2000-03-02 | Columnar |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004252122A Division JP4632723B2 (en) | 2004-08-31 | 2004-08-31 | Columnar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001248153A true JP2001248153A (en) | 2001-09-14 |
| JP3679964B2 JP3679964B2 (en) | 2005-08-03 |
Family
ID=18577669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000056781A Expired - Lifetime JP3679964B2 (en) | 2000-03-02 | 2000-03-02 | Columnar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3679964B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009035930A (en) * | 2007-08-01 | 2009-02-19 | Kubota Corp | Column set and method of using the same |
| JP2009035931A (en) * | 2007-08-01 | 2009-02-19 | Kubota Corp | Connection construction method for column, column set, and key member |
| JP2010242399A (en) * | 2009-04-07 | 2010-10-28 | Nippon Steel Corp | Connecting structure for steel pipe and steel pipe structure |
| JP2012046952A (en) * | 2010-08-26 | 2012-03-08 | Kubota Corp | Method for separating coupled columnar body, and columnar body |
| JP2014214454A (en) * | 2013-04-24 | 2014-11-17 | 国立大学法人三重大学 | Ground anchor re-tensioning tool and method for releasing fixed state of wedge piece by using the ground anchor re-tensioning tool |
| JP2016023520A (en) * | 2014-07-24 | 2016-02-08 | 新日鐵住金株式会社 | Rotation deterring structure for pile joint |
| JP2017044008A (en) * | 2015-08-28 | 2017-03-02 | 新日鐵住金株式会社 | Rotation suppression structure of steel pipe pile joint |
| JP2017172329A (en) * | 2017-07-10 | 2017-09-28 | 株式会社クボタ | Steel pipe connection structure |
| JP2018003431A (en) * | 2016-07-01 | 2018-01-11 | Ｊｆｅスチール株式会社 | Screw joint having inverse rotation prevention mechanism |
| JP2018123506A (en) * | 2017-01-31 | 2018-08-09 | Ｊｆｅスチール株式会社 | Screw joint with mechanism to prevent inverse rotation |
-
2000
- 2000-03-02 JP JP2000056781A patent/JP3679964B2/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009035930A (en) * | 2007-08-01 | 2009-02-19 | Kubota Corp | Column set and method of using the same |
| JP2009035931A (en) * | 2007-08-01 | 2009-02-19 | Kubota Corp | Connection construction method for column, column set, and key member |
| JP2010242399A (en) * | 2009-04-07 | 2010-10-28 | Nippon Steel Corp | Connecting structure for steel pipe and steel pipe structure |
| JP2012046952A (en) * | 2010-08-26 | 2012-03-08 | Kubota Corp | Method for separating coupled columnar body, and columnar body |
| JP2014214454A (en) * | 2013-04-24 | 2014-11-17 | 国立大学法人三重大学 | Ground anchor re-tensioning tool and method for releasing fixed state of wedge piece by using the ground anchor re-tensioning tool |
| JP2016023520A (en) * | 2014-07-24 | 2016-02-08 | 新日鐵住金株式会社 | Rotation deterring structure for pile joint |
| JP2017044008A (en) * | 2015-08-28 | 2017-03-02 | 新日鐵住金株式会社 | Rotation suppression structure of steel pipe pile joint |
| JP2018003431A (en) * | 2016-07-01 | 2018-01-11 | Ｊｆｅスチール株式会社 | Screw joint having inverse rotation prevention mechanism |
| JP2018123506A (en) * | 2017-01-31 | 2018-08-09 | Ｊｆｅスチール株式会社 | Screw joint with mechanism to prevent inverse rotation |
| JP2017172329A (en) * | 2017-07-10 | 2017-09-28 | 株式会社クボタ | Steel pipe connection structure |
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| Publication number | Publication date |
|---|---|
| JP3679964B2 (en) | 2005-08-03 |
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