JPH0587110A - Connector - Google Patents
ConnectorInfo
- Publication number
- JPH0587110A JPH0587110A JP3249259A JP24925991A JPH0587110A JP H0587110 A JPH0587110 A JP H0587110A JP 3249259 A JP3249259 A JP 3249259A JP 24925991 A JP24925991 A JP 24925991A JP H0587110 A JPH0587110 A JP H0587110A
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- nut
- sleeve
- wedge
- force
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Connection Of Plates (AREA)
- Dowels (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鋼構造物等における形
鋼部材の継手部で、接合する形鋼部材どうし或いはそれ
らの側面に当てた添え板と形鋼部材（接合対象とする形
鋼部材及び添え板を合わせて接合対象部材と称する）を
連結接合するのに使用する接合具に関し、詳しくは、一
端に楔状頭部を備えたボルトと、このボルトに螺合する
ナットと、前記ボルトに外嵌して一端側を前記ナットに
支持させた状態でのそのナットの螺進に伴う前記楔状頭
部の進入により拡径可能な拡開部を有するスリーブとか
らなり、例えば鋼管どうしを継ぐ場合のように裏側に手
が入らないような継手部において表側からの操作で前記
接合対象部材どうしを連結することができる接合具に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint portion of shaped steel members in a steel structure or the like, and a joining plate and shaped steel members which are to be joined to each other or side surfaces of the shaped steel members (shaped steel to be joined). A joining tool used for joining and joining members and attachment plates together (referred to as joining target members), more specifically, a bolt having a wedge-shaped head at one end, a nut screwed to the bolt, and the bolt. A sleeve having an expanding portion that can be expanded in diameter by the wedge-shaped head entering as the nut is screwed in a state in which one end side is supported by the nut and is fitted to the nut. The present invention relates to a joining tool that can join members to be joined together by an operation from the front side in a joint part where hands cannot be put on the back side as in the case.
【０００２】[0002]
【従来の技術】この種の接合具を用いた形鋼部材継手部
での接合対象部材の締め付け手順は、重ねた接合対象部
材のボルト穴に、ボルトの楔状頭部が挿入方向前端にな
る向きにした接合具を、楔状頭部が接合対象部材を貫通
してボルト穴を抜ける深さまで挿入した後、ナットを締
め付けることで行う。即ち、上述のように接合具を挿入
した後、ボルトの共回りを防止しつつナットを締め込む
と、ボルトは挿入方向とは逆方向の手前側に動き、それ
に連れてボルトの楔状頭部がスリーブの挿入方向前端に
設けた拡開可能な拡開部に当接してスリーブも手前側に
移動する。スリーブの挿入方向後端部が座金を介して前
記ナットに当接すると、そのナットに支持されることで
動きを拘束され、その後のナットの締め付けによるボル
ト楔状頭部の進入に伴ってスリーブの拡開部が拡径す
る。拡径されたスリーブの拡開部は前記接合対象部材の
ボルト穴周端部に当接し、その後のナットの締め付けに
よって作用するボルトの締め付け力は拡開部を介して接
合対象部材に伝えられることとなる。このように、接合
対象部材は、ボルト穴の一端に座金を介して当接するナ
ットと、他端にスリーブ拡開部を介して当接するボルト
の楔状頭部とによる締め付けで生じる圧縮力を受け、接
合対象部材間に生じる摩擦抵抗で応力伝達が可能な状態
に接合される。2. Description of the Related Art A procedure for tightening a member to be joined at a joint of a shaped steel member using a joining tool of this type is such that a wedge-shaped head portion of a bolt becomes a front end in an insertion direction in a bolt hole of a member to be joined. After the wedge-shaped head is inserted to such a depth that the wedge-shaped head penetrates the joining target member and passes through the bolt hole, the nut is tightened. That is, after inserting the connector as described above, tightening the nut while preventing co-rotation of the bolt causes the bolt to move toward the front side in the direction opposite to the insertion direction, and the wedge-shaped head portion of the bolt accordingly. The sleeve also moves to the front side by coming into contact with the expanding portion that can be expanded provided at the front end of the sleeve in the insertion direction. When the rear end of the sleeve in the insertion direction comes into contact with the nut via the washer, the movement of the sleeve is restrained by being supported by the nut, and the sleeve expands as the bolt wedge-shaped head enters after the nut is tightened. The diameter of the opening increases. The expanded portion of the expanded diameter sleeve contacts the peripheral edge of the bolt hole of the joining target member, and the tightening force of the bolt acting by tightening the nut thereafter is transmitted to the joining target member through the expanding portion. Becomes As described above, the joining target member receives a compressive force generated by tightening the nut that abuts on one end of the bolt hole through the washer and the wedge-shaped head portion of the bolt that abuts on the other end through the sleeve expanding portion, It is joined in a state in which stress can be transmitted by the frictional resistance generated between the members to be joined.
【０００３】しかし、このとき、前記スリーブは、一端
ではナットに、他端ではボルトの楔状頭部に当接してい
ることで、接合対象部材と同様に締め付けに伴って圧縮
力を受けるから、その分前記接合対象部材に作用する有
効な締め付け力が減じていることになる。従って、スリ
ーブは、その拡開部の拡開を終えて締め付け力がボルト
から直接接合対象部材に伝わる状態になった後は、締め
付け力をできるだけ負担しないことが好ましい。However, at this time, since the sleeve is in contact with the nut at one end and the wedge-shaped head portion of the bolt at the other end, the sleeve receives a compressive force as it is tightened as with the members to be joined. Therefore, the effective tightening force acting on the joining target members is reduced. Therefore, it is preferable that the sleeve does not bear the tightening force as much as possible after the expansion of the expanded portion is finished and the tightening force is directly transmitted from the bolt to the joining target member.
【０００４】そこで、本出願人は、先にスリーブの前記
ナット側となる端部に凹周溝による薄肉部を設け、スリ
ーブの拡開部が拡開した後の締め付け力によってその薄
肉部を座屈させて、スリーブによる締付力の負担量を少
なくするように構成したものを提案した。（例えば特公
昭４６−２１１２８号公報参照）Therefore, the present applicant first provided a thin portion by a concave circumferential groove at the end portion of the sleeve on the nut side, and seated the thin portion by the tightening force after the expansion portion of the sleeve expanded. It was proposed that the sleeve should be bent to reduce the burden of tightening force by the sleeve. (See, for example, Japanese Patent Publication No. 46-21128)
【０００５】[0005]
【発明が解決しようとする課題】しかし、上述の接合具
を用いた場合であっても、前記スリーブの拡開部が拡開
した後の締め付け力によってスリーブは座屈により変形
し、軸方向の応力は激減するものの、締め付け力に対す
る応力が依然として残存している欠点がある。即ち、接
合対象部材の接合用の初張力となる力は、未だ締め付け
力の全てではないことになる。However, even when the above-mentioned connector is used, the sleeve is deformed by buckling due to the tightening force after the expanding portion of the sleeve is expanded, and the sleeve is deformed in the axial direction. Although the stress is drastically reduced, there is a drawback that the stress against the tightening force still remains. That is, the force serving as the initial tension for joining the members to be joined is not yet the entire tightening force.
【０００６】本発明の目的は、上述した欠点を解消し、
接合具による締め付け力の全てを接合対象部材の接合に
有効に作用させることのできる接合具を提供することに
ある。The object of the present invention is to overcome the above-mentioned drawbacks,
It is an object of the present invention to provide a joining tool capable of effectively exerting all of the fastening force of the joining tool on the joining of the joining target members.
【０００７】[0007]
【課題を解決するための手段】この目的を達成するため
に、本発明の接合具の第１の特徴構成は、一端に、楔状
頭部を備えたボルトに螺合するナットに、前記ボルトに
外嵌して一端側を前記ナットに支持させた状態でのその
ナットの螺進に伴う前記楔状頭部の侵入により拡径可能
な拡開部を有するスリーブを支持させるための支持具を
設け、その支持具の少なくとも一部に、前記楔状頭部を
介しての前記拡開部拡径用の軸方向力よりも大なる圧縮
力を受けて破壊することによって支持力を失う破壊部を
設けてあるところにある。In order to achieve this object, the first characteristic structure of the connector of the present invention is a nut which is screwed to a bolt having a wedge-shaped head at one end, and the bolt is attached to the bolt. Provided is a support tool for supporting a sleeve having an expanding portion that can be expanded in diameter by the wedge-shaped head invading as the nut is screwed in a state where one end side is externally fitted and supported by the nut, At least a part of the supporting member is provided with a breaking portion that loses the supporting force by breaking by receiving a compressive force larger than the axial force for expanding the expanding portion through the wedge-shaped head. There is a place.
【０００８】又、第２の特徴構成は、前記破壊部がセラ
ミックスであるところにある。The second characteristic constitution is that the breaking portion is made of ceramics.
【０００９】そして、第３の特徴構成は、前記支持具を
前記ボルトに外嵌状態で互いに嵌合可能な大筒と小筒
と、それらの両筒をほぼ同芯状に配置した状態で、それ
らの軸芯方向で互いに反対側の端部どうしを連結する前
記破壊部とで形成してあるところにある。In a third characteristic construction, a large cylinder and a small cylinder, which are capable of fitting the supporting member to the bolt in an externally fitted state, and both cylinders are arranged substantially concentrically. It is formed by the breaking portion that connects the ends on the opposite sides in the axial direction.
【００１０】[0010]
【作用】つまり、本発明の第１の特徴構成によれば、ま
ず、スリーブをナットに支持させるための支持具を設け
てあるので、その支持具によってスリーブの一端をナッ
トとの間で支持して、スリーブのナット側への移動に対
して、その動きを拘束し、スリーブの他端における拡開
部の拡径を可能とするものである。さらに、前記支持具
の少なくとも一部に、楔状頭部を介しての拡開部拡径用
の軸方向力より大なる圧縮力を受けて破壊することによ
って支持力を失う破壊部を設けてあるので、ナットの螺
進に伴うボルトの楔状頭部のナット側への進入によっ
て、スリーブ拡開部が拡径した後の締め付けによって発
生するそれまでより大きな圧縮力によって、支持具の破
壊部が破壊し、ナットに対するスリーブの支持を行わな
くなって、ナットの締め付け力を接合対象部材相互の接
合に効果的に作用させることが出来るようになる。That is, according to the first characterizing feature of the present invention, first, since the support tool for supporting the sleeve on the nut is provided, one end of the sleeve is supported between the nut and the nut by the support tool. The movement of the sleeve is restrained against the movement of the sleeve toward the nut side, and the diameter of the expanded portion at the other end of the sleeve can be expanded. Further, at least a part of the support is provided with a breaking portion that loses the supporting force by breaking by receiving a compressive force larger than the axial force for expanding the diameter of the expanding portion via the wedge-shaped head. Therefore, due to the wedge-shaped head of the bolt entering the nut side as the nut is threaded, the broken part of the support is destroyed by the greater compression force generated by the tightening after the diameter expansion of the sleeve expansion part. However, since the sleeve is not supported by the nut, the tightening force of the nut can be effectively applied to the joining of the joining target members.
【００１１】また、本発明の第２の特徴構成によれば、
前記破壊部がセラミックスで形成してあるから、脆性が
高いというセラミックスの材質上の利点を生かすことが
でき、支持具が、スリーブ拡開時の軸方向力より大なる
圧縮力を受けた場合、破壊部が脆性破壊し、スリーブと
ナット間での応力伝播をしなくなり、上述の場合と同様
に、ナットの締め付け力を効果的に接合対象部材相互の
接合に作用させることが出来るようになる。According to the second characteristic configuration of the present invention,
Since the breaking portion is formed of ceramics, the advantage of the material of ceramics that the brittleness is high can be utilized, and when the supporting tool receives a compressive force larger than the axial force at the time of expanding the sleeve, The breaking portion is brittlely broken, and the stress is not propagated between the sleeve and the nut. As in the case described above, the tightening force of the nut can be effectively applied to the joining of the members to be joined.
【００１２】第３の特徴構成によれば、前記支持具を、
前記ボルトに外嵌状態で互いに嵌合可能な大筒と小筒
と、それらの両筒をほぼ同心状に配置した状態で、それ
らの軸心方向で互いに反対側の端部どうしを連結する破
壊部とを設けてあるから、軸方向の力が作用すると、構
造上その力は、両筒を連結する破壊部に集中して破壊し
易くなり、拡径時の軸方向力より大なる圧縮力を受ける
と破壊部は、せん断破壊し、小筒と大筒は互いに嵌合す
る状態になり、スリーブとナット間での応力伝播をしな
くなって、ナットの締め付け力を効果的に接合対象部材
の締め付けに作用させることが、出来るようになる。According to a third characteristic configuration, the support is
A large cylinder and a small cylinder that can be fitted to each other while being fitted onto the bolt, and a breaking portion that connects ends opposite to each other in the axial direction with the two cylinders arranged substantially concentrically. Therefore, when a force is applied in the axial direction, the force is structurally concentrated in the breakage part that connects both cylinders, making it easier to break, and a compressive force larger than the axial force when expanding the diameter is provided. Upon receiving it, the breaking part shears and breaks, the small cylinder and the large cylinder are in a state of fitting with each other, the stress does not propagate between the sleeve and the nut, and the tightening force of the nut is effectively used for tightening the members to be joined. It becomes possible to act.
【００１３】[0013]
【発明の効果】よって、接合具による締め付け力を接合
対象部材の締め付けに有効に生かした接合ができるよう
になって、鋼構造物での接合部に対する安全性を増加さ
せることができるようになった。As described above, the tightening force of the joining tool can be effectively utilized for tightening the members to be joined, so that the safety of the joined portion in the steel structure can be increased. It was
【００１４】[0014]
【実施例】以下に本発明の実施例を図面に基づいて説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１５】図３に本発明の接合具を用いた形鋼部材の
継手部１での接合状況を示してある。この使用例は角型
鋼管２の柱での継手部１を表してあり、接合の対象とな
る上下に位置する角型鋼管２ａ，２ｂと、その継手部１
で上下各角型鋼管２ａ，２ｂの内面・外面で各々を挟み
込んで摩擦接合するための添え板３ａ，３ｂと、前記角
型鋼管２と前記添え板３ａ，３ｂを合わせた状態で各々
を貫通するように設けられた複数のボルト穴４に、接合
具の一例である高力ボルト５を挿入して接合してある。
当発明の高力ボルト５はここに表す継手部１のように継
手部１の内側６に手を入れて高力ボルト５の締め付けが
できない場合であっても外側７からの高力ボルト５の操
作だけで締め付けができるよう構成してある。FIG. 3 shows a joining state of the joint portion 1 of the shaped steel member using the joining tool of the present invention. This example of use shows the joint portion 1 at the pillar of the square steel pipe 2, and the square steel pipes 2a and 2b positioned at the top and bottom to be joined and the joint portion 1 thereof.
With the above, the attachment plates 3a and 3b for sandwiching the inner and outer surfaces of the respective upper and lower rectangular steel pipes 2a and 2b for frictional joining, and the rectangular steel pipe 2 and the additional plates 3a and 3b are penetrated through each other. The high-strength bolts 5, which are an example of a joining tool, are inserted into and joined to the plurality of bolt holes 4 provided so as to be joined together.
The high-strength bolt 5 according to the present invention can prevent the high-strength bolt 5 from the outer side 7 even if the high-strength bolt 5 cannot be tightened by putting a hand inside the joint portion 1 like the joint portion 1 shown here. It is structured so that it can be tightened only by operation.
【００１６】接合部８の詳細を図１に示す。図１Ａは当
発明の高力ボルト５を組んだ状態で接合の対象となる前
記角型鋼管２の一面をなす平面部とその平面部を内外か
ら挟む一対の添え板３ａ，３ｂで構成する接合対象部材
９（以下接合対象部材という）に設けられたボルト穴４
に継手部１外側７から１０の挿入方向で挿入した状況を
示してある。一対の前記添え板３ａ，３ｂの内、接合部
８内側６の添え板３ｂに設けられたボルト穴４には後述
するスリーブ拡開部１２が拡径の後馴染みやすくするた
めにボルト穴４の端部を大径に広げた座ぐり部１３を設
けてある。Details of the joint portion 8 are shown in FIG. FIG. 1A is a joint formed by a flat portion forming one surface of the square steel pipe 2 to be joined in a state where the high-strength bolt 5 of the present invention is assembled and a pair of attachment plates 3a and 3b sandwiching the flat portion from inside and outside. Bolt hole 4 provided in target member 9 (hereinafter referred to as joining target member)
Shows the situation in which the joint portion 1 is inserted in the insertion direction from the outside 7 to 10. Among the pair of attachment plates 3a and 3b, the bolt expansion hole 12 provided in the attachment plate 3b on the inner side 6 of the joint portion 8 has a sleeve expansion portion 12 which will be described later in order to facilitate fitting after expansion. A counterbore portion 13 having an enlarged end portion is provided.
【００１７】高力ボルト５は、一端に楔状頭部１４ａを
備えたボルト本体１４と前記ボルト本体１４に楔状頭部
１４ａとは逆の他端で螺合するナット１５と、ボルト本
体１４に楔状頭部１４ａから前記ナット１５が螺合する
位置までの間に外嵌するスリーブ１１・スリーブ支持具
１６・座金１７によって構成してある。The high-strength bolt 5 includes a bolt body 14 having a wedge-shaped head portion 14a at one end, a nut 15 screwed into the bolt body 14 at the other end opposite to the wedge-shaped head portion 14a, and a wedge-shaped portion on the bolt body 14. It is composed of a sleeve 11, a sleeve support 16 and a washer 17 which are externally fitted between the head 14a and a position where the nut 15 is screwed.
【００１８】ボルト本体１４は円柱状で上述のようにボ
ルト穴４への挿入方向１０での前端となる一端側に端部
に近いほど大径に加工した楔状頭部１４ａを備え前記挿
入方向１０での後端となる他端側には前記ナット１５が
螺合できるネジ部１４ｂとそのネジ部の径より小径の掛
合部１４ｃを設けてある。The bolt body 14 has a cylindrical shape, and has a wedge-shaped head portion 14a having a larger diameter toward the end, which is the front end in the insertion direction 10 into the bolt hole 4 as described above. On the other end side, which is the rear end of, the threaded portion 14b with which the nut 15 can be screwed and the engaging portion 14c having a diameter smaller than the diameter of the threaded portion are provided.
【００１９】又、前記スリーブ１１は、一般的にシース
と称されるものも含んだ総称であって、筒状に形成して
あり、前記ボルト本体１４に外嵌した状態で楔状頭部１
４ａ側の端部側が楔状頭部１４ａの軸方向に傾斜した楔
状面１４ａａに当接して軸方向に押圧されることで拡径
するようにその端部側に拡開部１２を設けてある。この
拡開部１２は前記スリーブ１１の端部から軸方向にスリ
ット状の切込みを複数箇所で間隔をもって設けることで
周部が複数に分割され拡開できる構造としてある。The sleeve 11 is a general term including a sheath, which is generally called a sheath, and is formed in a tubular shape, and the wedge-shaped head 1 is fitted onto the bolt body 14 in an externally fitted state.
An expanding portion 12 is provided on the end side of the wedge-shaped head portion 14a so that the end portion side on the 4a side abuts the wedge-shaped surface 14aa inclined in the axial direction of the wedge-shaped head portion 14a and is expanded by being pressed in the axial direction. The expanding portion 12 has a structure in which a slit-like notch is provided in the axial direction from the end portion of the sleeve 11 at a plurality of positions at intervals so that the peripheral portion can be divided into a plurality of portions and expanded.
【００２０】又、前記スリーブ１１を前記ナット１５及
び前記ナット１５に接して力を伝達する座金１７との間
にあって支持する支持具を１６として表してある。この
支持具１６は、その支持力を前記スリーブ１１の拡開部
１２の拡径時に作用する軸方向力程度とし、その軸方向
力をこえると破壊する破壊部１９を、全体をセラミック
スで形成することで設けてある。又、ボルト穴４内面と
ボルト本体１４外面との間隙１８での径方向幅の概ね半
分程度の肉厚をもつ円筒形でボルト本体１４周面にほぼ
接するように形成してある。Further, a support tool 16 for supporting the sleeve 11 between the nut 15 and a washer 17 which is in contact with the nut 15 and transmits a force is shown as 16. The supporting member 16 has a supporting force that is approximately the axial force that acts when the expanding portion 12 of the sleeve 11 is expanded in diameter, and the breaking portion 19 that breaks when the axial force is exceeded is formed entirely of ceramics. It is provided by that. Further, it is formed into a cylindrical shape having a wall thickness of about half of the radial width in the gap 18 between the inner surface of the bolt hole 4 and the outer surface of the bolt body 14 so as to be substantially in contact with the peripheral surface of the bolt body 14.
【００２１】次に図１Ｂによって当発明の高力ボルト５
での締め付け状況を説明する。まずボルト本体１４に前
記スリーブ１１及びスリーブ支持具１６と座金１７の順
でそれらを外嵌させ、ネジ部１４ｂにナット１５を螺合
して高力ボルト５を組んで、楔状頭部１４ａを挿入方向
１０前端にして、前記接合対象部材９に設けたボルト穴
４に楔状頭部１４ａが抜ける深さまで挿入する。次にボ
ルト本体１４の掛合部１４ｃにスパナを掛合させボルト
本体１４を保持しつつナット１５に別のスパナを掛合さ
せて締めて螺進させる。ナット１５の螺進に伴ってボル
ト本体１４は手前に引き戻され楔状頭部１４ａの楔状面
１４ａａに前記スリーブ１１の拡開部１２が当接し前記
スリーブ１１もボルト本体１４ともども手前に引き戻さ
れる。Next, referring to FIG. 1B, the high-strength bolt 5 of the present invention will be described.
I will explain the tightening situation in. First, the sleeve 11, the sleeve support 16 and the washer 17 are externally fitted to the bolt main body 14 in this order, the nut 15 is screwed into the screw portion 14b to assemble the high-strength bolt 5, and the wedge-shaped head portion 14a is inserted. The front end in the direction 10 is inserted into the bolt hole 4 provided in the joining target member 9 to a depth at which the wedge-shaped head portion 14a comes off. Next, a spanner is engaged with the engaging portion 14c of the bolt body 14, and while the bolt body 14 is held, another spanner is engaged with the nut 15 and tightened and screwed. As the nut 15 is screwed, the bolt main body 14 is pulled back toward the front, and the expanded portion 12 of the sleeve 11 is brought into contact with the wedge-shaped surface 14aa of the wedge-shaped head portion 14a so that the sleeve 11 and the bolt main body 14 are pulled back toward the front.
【００２２】ナット１５の螺進が更に進めば、前記スリ
ーブ１１はスリーブ支持具１６に当接し、更にスリーブ
支持具１６は座金１７に当接することでそれらは軸方向
の動きを拘束され、その後のナット１５螺進によるボル
ト楔状頭部１４ａのボルト穴４への進入によって楔状面
１４ａａでスリーブ１１の拡開部１２端部は滑りつつ拡
径する。この状態で前記スリーブ支持具１６は、作用す
る軸方向圧縮力（以下拡開時圧縮力という）によって破
壊しない強度を有しているので破壊せず、更にナット１
５の螺進を続け楔状頭部１４ａを進入させると、前記ス
リーブ１１の拡開部１２は最大限拡径し、添え板３ｂの
前記座ぐり部１３とボルト１４の楔状面１４ａａに挟ま
れてボルト楔状頭部１４ａの進入を抑止すると共に、そ
の後のナット１５螺進に伴ってボルト本体１４に発生す
る引張軸力を前記接合対象部材９に締め付け力として伝
える。但し、この時点ではボルトの締め付け力は前記ス
リーブ１１及びスリーブ支持具１６・座金１７にも作用
しており、その力が前記拡開時圧縮力を越えるとスリー
ブ支持具１６の破壊部１９は圧縮破壊を起こし粉砕化し
前記間隙１８の中で連続性がなくなり、スリーブ１１と
座金１７との間で力を伝達しなくなる。As the nut 15 further advances, the sleeve 11 contacts the sleeve support 16 and the sleeve support 16 contacts the washer 17 so that they are restrained from moving in the axial direction. When the bolt wedge-shaped head portion 14a is advanced into the bolt hole 4 by screwing the nut 15, the end of the expanded portion 12 of the sleeve 11 is expanded while sliding on the wedge-shaped surface 14aa. In this state, the sleeve support 16 has a strength not to be broken by the acting axial compressive force (hereinafter, referred to as a compressive force at the time of expansion), and therefore is not broken, and the nut 1
When the wedge-shaped head portion 14a is advanced by continuing the screwing of No. 5, the expanded portion 12 of the sleeve 11 is expanded to the maximum diameter and is sandwiched between the counterbore portion 13 of the attachment plate 3b and the wedge-shaped surface 14aa of the bolt 14. The bolt wedge-shaped head portion 14a is prevented from entering, and the tensile axial force generated in the bolt body 14 as the nut 15 is subsequently threaded is transmitted to the joining target member 9 as a tightening force. However, at this point, the tightening force of the bolt is also acting on the sleeve 11, the sleeve support 16 and the washer 17, and when the force exceeds the compressing force at the time of expansion, the breaking portion 19 of the sleeve support 16 is compressed. It breaks and pulverizes, and there is no continuity in the gap 18, so that no force is transmitted between the sleeve 11 and the washer 17.
【００２３】この様にスリーブ支持具１６が破壊するこ
とでボルトの締め付け力の全てを前記接合対象部材９は
その一端では座金１７を介してナット１５から、多端で
はスリーブ拡開部１２を介してボルト楔状頭部１４ａか
ら受けて最大の接合力が得られる。By breaking the sleeve support 16 in this manner, all of the tightening force of the bolt is supplied from the nut 15 through the washer 17 at one end of the joining target member 9 and through the sleeve expanding portion 12 at the multi-end. The maximum bonding force is obtained by receiving from the bolt wedge-shaped head 14a.
【００２４】〔別実施例〕先の実施例においては、スリ
ーブ１１の支持具１６について、その全体が破壊部１９
となるようにセラミックスによって一体成形したものを
説明したが、この例に限定するものではない。例えば、
支持具１６の一部に破壊部１９を設けたものであっても
よく、さらに、その破壊部１９をセラミックス以外の脆
性材料で形成したものであってもよい。また、形状に関
しては、単一の円筒に限るものではなく、例えば図４に
示すように、ボルト穴４内でボルト本体１４に外嵌可能
な大筒１６ａと小筒１６ｂを、夫々１つ、若しくは複数
個組合わせて形成したものであってもよく、その場合
は、大筒１６ａ・小筒１６ｂの一部又は前部を破壊部１
９として形成するか、若しくは、各筒を連結する部分を
破壊部１９として形成したものであってもよい。また、
破壊部１９は、支持具１６内に複数箇所設けてあっても
よい。要するに、支持具１６に加わる軸方向力が前記拡
開時圧縮力を超えれば、破壊して応力の伝達をしなくな
るものであればよい。[Other Embodiments] In the previous embodiment, the supporting member 16 of the sleeve 11 has a broken portion 19 as a whole.
Although the one-piece molded product of ceramics has been described, the present invention is not limited to this example. For example,
The supporting member 16 may be provided with the breaking portion 19 in a part thereof, and the breaking portion 19 may be formed of a brittle material other than ceramics. Further, the shape is not limited to a single cylinder, and, for example, as shown in FIG. 4, one large cylinder 16a and one small cylinder 16b that can be externally fitted to the bolt body 14 in the bolt hole 4, or It may be formed by combining a plurality of them. In that case, a part or a front portion of the large cylinder 16a and the small cylinder 16b is formed in the destruction portion 1.
It may be formed as 9, or the portion connecting the cylinders may be formed as the breaking portion 19. Also,
The breaking portion 19 may be provided in a plurality of places in the support 16. In short, if the axial force applied to the support 16 exceeds the compressive force at the time of expansion, it may be broken and the stress cannot be transmitted.
【００２５】尚、特許請求の範囲の項に図面との対照を
便利にするために符号を記すが、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。It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.
【図１】接合具の作用図FIG. 1 Action diagram of the connector
【図２】接合具の詳細図[Fig. 2] Detailed view of the joining tool
【図３】接合具の取付け状況図[Fig. 3] Attachment status diagram of connector
【図４】接合具の別実施例を示す図FIG. 4 is a view showing another embodiment of the connector.
１１ スリーブ １２ 拡開部 １４ ボルト １４ａ 楔状頭部 １５ ナット １６ 支持具 １９ 破壊部 11 Sleeve 12 Expanding Part 14 Bolt 14a Wedge Head 15 Nut 16 Supporting Tool 19 Breaking Part
Claims (3)
ト（１４）と、このボルト（１４）に螺合するナット
（１５）と、前記ボルト（１４）に外嵌して一端側を前
記ナット（１５）に支持させた状態でのそのナット（１
５）の螺進に伴う前記楔状頭部（１４ａ）の進入により
拡径可能な拡開部（１２）を有するスリーブ（１１）と
からなる接合具であって、前記スリーブ（１１）を前記
ナット（１５）に支持させるための支持具（１６）を設
け、その支持具（１６）の少なくとも一部に、前記楔状
頭部（１４ａ）を介しての前記拡開部（１２）拡径用の
軸方向力よりも大なる圧縮力を受けて破壊することによ
って支持力を失う破壊部（１９）を設けてある接合具。1. A bolt (14) having a wedge-shaped head portion (14a) at one end, a nut (15) screwed to the bolt (14), and an externally fitted one end side of the bolt (14). The nut (1) supported by the nut (15)
5) A connector comprising a sleeve (11) having an expanding portion (12) capable of expanding its diameter by the wedge-shaped head (14a) entering the screw (5) by screwing the sleeve (11) into the nut. A support tool (16) for supporting it on (15) is provided, and at least a part of the support tool (16) is used for expanding the diameter of the expansion portion (12) through the wedge-shaped head (14a). A connector provided with a breaking portion (19) which loses its supporting force by breaking when receiving a compressive force larger than the axial force.
る請求項１に記載の接合具。2. The connector according to claim 1, wherein the breaking portion (19) is made of ceramics.
４）に外嵌状態で互いに嵌合可能な大筒と小筒と、それ
らの両筒をほぼ同心状に配置した状態で、それらの軸心
方向で互いに反対側の端部どうしを連結する前記破壊部
（１９）とで形成してある請求項１に記載の接合具。3. The support (16) is attached to the bolt (1).
4) A large cylinder and a small cylinder which can be fitted to each other in an externally fitted state, and a state in which both cylinders are arranged substantially concentrically, and the end portions which are opposite to each other in the axial direction are connected to each other. The connector according to claim 1, which is formed with the portion (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3249259A JPH0587110A (en) | 1991-09-27 | 1991-09-27 | Connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3249259A JPH0587110A (en) | 1991-09-27 | 1991-09-27 | Connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0587110A true JPH0587110A (en) | 1993-04-06 |
Family
ID=17190305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3249259A Pending JPH0587110A (en) | 1991-09-27 | 1991-09-27 | Connector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0587110A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000060245A1 (en) * | 1999-04-06 | 2000-10-12 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Expansion anchor |
| JP2007532834A (en) * | 2004-04-08 | 2007-11-15 | ソシエテ ドゥ プロスペクティオン エ ディンベンティオン テクニク スピ | Method of fixing a guardrail with a guardrail bolt, a guardrail bolt, and a tool for fixing the guardrail bolt |
| KR100897721B1 (en) * | 2008-10-10 | 2009-05-15 | 김윤수 | Anchor bolt for panel and setting up method thereof |
| WO2016014018A1 (en) * | 2014-07-21 | 2016-01-28 | Universal Hinge Corporation | Pull-up bolt assembly |
-
1991
- 1991-09-27 JP JP3249259A patent/JPH0587110A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000060245A1 (en) * | 1999-04-06 | 2000-10-12 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Expansion anchor |
| JP2007532834A (en) * | 2004-04-08 | 2007-11-15 | ソシエテ ドゥ プロスペクティオン エ ディンベンティオン テクニク スピ | Method of fixing a guardrail with a guardrail bolt, a guardrail bolt, and a tool for fixing the guardrail bolt |
| JP2013047457A (en) * | 2004-04-08 | 2013-03-07 | Prospection & Inventions Techniques Spit:Soc | Guard rail bolt |
| KR100897721B1 (en) * | 2008-10-10 | 2009-05-15 | 김윤수 | Anchor bolt for panel and setting up method thereof |
| WO2016014018A1 (en) * | 2014-07-21 | 2016-01-28 | Universal Hinge Corporation | Pull-up bolt assembly |
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