JPH09220713A - Joining structure of insert bush, insert bush used therefor and insert bush fixing jig - Google Patents
Joining structure of insert bush, insert bush used therefor and insert bush fixing jigInfo
- Publication number
- JPH09220713A JPH09220713A JP5400096A JP5400096A JPH09220713A JP H09220713 A JPH09220713 A JP H09220713A JP 5400096 A JP5400096 A JP 5400096A JP 5400096 A JP5400096 A JP 5400096A JP H09220713 A JPH09220713 A JP H09220713A
- Authority
- JP
- Japan
- Prior art keywords
- insert bush
- insert
- bush
- mold
- mounting portion
- 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
- Sewage (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はＵ字溝等のコンクリ
ート製品内に埋設されるインサートブッシュをコンクリ
ート製品の型枠内側面に固定するインサートブッシュの
結合構造並びにこれに用いるインサートブッシュ及びイ
ンサートブッシュ固定具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insert bush connecting structure for fixing an insert bush embedded in a concrete product such as a U-shaped groove to the inner surface of a concrete product frame, and an insert bush and insert bush fixing used therefor. It is about ingredients.
【０００２】[0002]
【従来の技術】従来、Ｕ字溝等のコンクリート製品に
は、吊下げ用のワイヤーロープを掛止する吊下げ金具を
挿着支持するために、該吊下げ金具の固定位置に略円筒
形のインサートブッシュをその開口部がコンクリート製
品の側壁面に露出する様に予め埋設しており、コンクリ
ート製品の運搬、現場での敷設時にはインサートブッシ
ュの開口部より挿着した吊下げ金具にワイヤーロープを
掛止してクレーン車等によりコンクリート製品を吊下げ
移動して作業を行っていた。2. Description of the Related Art Conventionally, a concrete product such as a U-shaped groove has a substantially cylindrical shape at a fixing position of a hanging metal fitting for supporting a hanging metal fitting for hanging a hanging wire rope. The insert bush is buried in advance so that its opening is exposed on the side wall surface of the concrete product.When transporting concrete products or laying on the site, wire ropes are hung on the hanging bracket inserted from the opening of the insert bush. The work was stopped and the concrete product was suspended and moved by a crane truck or the like.
【０００３】そして、コンクリート製品内へのインサー
トブッシュの埋設にあたっては、コンクリート製品の製
造時に、型枠に設けた透孔にボルトを型枠外面側より貫
通すると共に、ボルトにインサートブッシュを螺合して
型枠内側面に密着固定し、その後型枠内にコンクリート
を打設し、コンクリートの養生固化後、ボルトをインサ
ートブッシュより螺退して型枠を取り外すことにより、
コンクリート製品の側壁面に開口部端面を露出する様に
インサートブッシュを埋設していた。When embedding the insert bush in the concrete product, the bolt is inserted into the through hole provided in the form from the outer surface of the form at the time of manufacturing the concrete product, and the insert bush is screwed into the bolt. By closely fixing it to the inner surface of the formwork, then placing concrete in the formwork, and after curing and solidifying the concrete, screw the bolt back from the insert bush and remove the formwork.
An insert bush was buried in the side wall surface of the concrete product so that the end face of the opening was exposed.
【０００４】しかしながら、上記の方法ではボルトでイ
ンサートブッシュを型枠に固定しているため、その締結
作業が面倒であると共に、型枠内側面にインサートブッ
シュの開口部端面が密着していないと、インサートブッ
シュ内部にコンクリートが流入する欠点を有し、又脱型
時にはボルトをインサートブッシュより螺退させた後、
型枠を外していたため、その作業が甚だ面倒であった。[0004] However, in the above method, since the insert bush is fixed to the mold with bolts, the fastening operation is troublesome, and if the end face of the opening of the insert bush does not adhere to the inner surface of the mold, There is a drawback that concrete flows into the insert bush, and after removing the bolt from the insert bush when removing the mold,
Since the mold was removed, the work was extremely troublesome.
【０００５】[0005]
【発明が解決しようとする課題】本発明は型枠内側面の
所望位置にインサートブッシュを簡単に密着固定でき、
脱型時の型枠の取り外しを簡単に行える様にしたインサ
ートブッシュの結合構造並びにこれに用いるインサート
ブッシュ及びインサートブッシュ固定具に関するもので
ある。SUMMARY OF THE INVENTION According to the present invention, an insert bush can be easily and closely fixed to a desired position on the inner surface of a mold,
The present invention relates to an insert bush coupling structure that enables easy removal of a mold frame at the time of demolding, and an insert bush and an insert bush fixture used therefor.
【０００６】[0006]
【課題を解決するための手段】本発明は上記従来技術に
基づく、インサートブッシュの型枠への固定及び脱型の
作業性の課題に鑑み、型枠内側面の所定位置に略半球形
状の基体外周に１リード分のねじ山部を設けたインサー
トブッシュ装着部を突設し、該インサートブッシュ装着
部より軟質材料からなるインサートブッシュの開口部内
周に、前記インサートブッシュ装着部に合致する受口部
を設け、前記インサートブッシュ装着部に対しインサー
トブッシュを一回転することにより、インサートブッシ
ュを型枠内側面に簡単にして強固に密着固定でき、又脱
型時における型枠を外す動作のみで、型枠を外す力によ
り、インサートブッシュ装着部を型枠ごとインサートブ
ッシュより強制的に離脱させられる様にして、上記欠点
を解決せんとしたものである。SUMMARY OF THE INVENTION The present invention is based on the above-mentioned prior art, and in view of the workability of fixing the insert bush to the mold and removing the mold, a substantially hemispherical base body at a predetermined position on the inner surface of the mold. An insert bush mounting portion provided with a thread portion for one lead is provided on the outer periphery so as to project from the insert bush mounting portion, and a receiving portion matching the insert bush mounting portion is provided on the inner circumference of the opening of the insert bush made of a soft material. By rotating the insert bush once with respect to the insert bush mounting part, the insert bush can be easily and firmly fixed to the inner surface of the mold, and the mold can be removed by simply removing the mold during demolding. With the force to remove the frame, the insert bush mounting part can be forcibly disengaged from the insert bush together with the form frame, and the above drawbacks have not been solved. Than it is.
【０００７】[0007]
【発明の実施の形態】以下本発明の実施の形態を図面に
基づいて説明すると、１はＵ字溝等のコンクリート製品
Ｗの外側に対応する型枠であり、該型枠１はコンクリー
ト製品Ｗの内側に対応する略凹状の型枠1aに対し開閉自
在に設けてなり、該型枠１の所定位置に所定径の透孔２
を設けている。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is a formwork corresponding to the outside of a concrete product W such as a U-shaped groove, and the formwork 1 is a concrete product W. Is formed to be openable and closable with respect to a substantially concave mold frame 1a corresponding to the inner side of the mold, and a through hole 2 having a predetermined diameter is provided at a predetermined position of the mold frame 1.
Is provided.
【０００８】尚、型枠１は上記構成の様に型枠1aに対し
開閉自在に設けたものに限定されることなく、コンクリ
ート製品Ｗ内のインサートブッシュ３の埋設位置に対応
する部位に透孔２を設けたものであれば良い。The form 1 is not limited to the form 1a which is openable and closable with respect to the form 1a as described above, and a through hole is formed in a portion of the concrete product W corresponding to the embedding position of the insert bush 3. Anything provided with 2 may be used.
【０００９】４は金属製等のインサートブッシュ３より
硬質材料からなるインサートブッシュ固定具であり、該
インサートブッシュ固定具４は前記透孔２より大径に形
成した略半球形状の基体外周に、略１リード分のねじ山
部５を形成したインサートブッシュ装着部６を設けると
共に、該インサートブッシュ装着部６の底面部７の中心
に、透孔２を挿通可能な径を有する螺子棒８を突設し、
該螺子棒８を型枠１の内側面Ｉの透孔２より挿通して螺
子棒８に２個のナット９、9aを螺合して、型枠１の内側
面Ｉにインサートブッシュ装着部６を突出する様に成し
ている。Reference numeral 4 denotes an insert bush fixture made of a harder material than the insert bush 3 made of metal or the like. The insert bush fixture 4 has a substantially hemispherical base body formed to have a diameter larger than that of the through hole 2 and has a substantially hemispherical shape. An insert bush mounting portion 6 having a thread portion 5 for one lead is provided, and a screw rod 8 having a diameter capable of inserting the through hole 2 is provided at the center of a bottom surface portion 7 of the insert bush mounting portion 6. Then
The screw rod 8 is inserted through the through hole 2 on the inner surface I of the mold 1 and two nuts 9 and 9a are screwed into the screw rod 8 to insert the insert bush mounting portion 6 on the inner surface I of the mold 1. It is designed to project.
【００１０】又、インサートブッシュ固定具４の中心軸
線上には、空気孔10を貫通形成している。An air hole 10 is formed through the center axis of the insert bush fixture 4.
【００１１】又、インサートブッシュ固定具４は丸頭ボ
ルトの頭部に１リード分のねじ山部５を螺刻すると共
に、その中心軸線上に空気孔10を貫通形成したものであ
っても良い。Further, the insert bush fixing tool 4 may be one in which a thread portion 5 for one lead is threaded on the head of a round head bolt and an air hole 10 is formed so as to penetrate on the central axis thereof. .
【００１２】ねじ山部５を１リード分、即ちインサート
ブッシュ装着部６を一回転したときのねじ山部５上の１
点が軸方向に移動した距離としたのは、１回転でインサ
ートブッシュ３をインサートブッシュ装着部６に螺着で
き、しかもねじ山部５のねじ山条数を略１山分とするこ
とで、脱型時の型枠１の開放側への回動操作により、コ
ンクリート製品Ｗ内に埋設されたインサートブッシュ３
よりインサートブッシュ装着部６の引き抜きを可能とす
るためである。One lead on the thread portion 5, that is, one on the thread portion 5 when the insert bush mounting portion 6 is rotated once.
The point is defined as the distance moved in the axial direction because the insert bush 3 can be screwed into the insert bush mounting portion 6 in one rotation, and the number of screw threads of the screw thread portion 5 is approximately one thread. The insert bush 3 embedded in the concrete product W by the rotating operation of the mold 1 to the open side at the time of demolding
This is because the insert bush mounting portion 6 can be pulled out more.
【００１３】又、ねじ山部５の山頂は上記の引き抜き動
作をスムーズに行える様に、平坦に形成して、受口部18
に形成した雌ねじに引っ掛かりを少なくしている。Further, the crests of the screw thread portions 5 are formed flat so that the above-mentioned pulling operation can be carried out smoothly, and the receiving portion 18 is formed.
The internal thread formed on the is less caught.
【００１４】尚、本実施例において、型枠１へのインサ
ートブッシュ固定具４の着脱手段は２個のナット９、9a
を用いた２重ナットによるものを示したが、かかる方式
に限定されることなく、止めナット9aの代わりに蝶ナッ
トで対応したり、又単に１個のナットや蝶ナットで締め
付けたり、又螺子棒８とナット９の夫々に連通する貫通
孔を設け、該貫通孔に割りピンを挿入しても良い。In this embodiment, the means for attaching / detaching the insert bush fixture 4 to / from the mold 1 is two nuts 9 and 9a.
Although a double nut using the above is shown, the present invention is not limited to such a method, and a wing nut may be used instead of the lock nut 9a, or a single nut or wing nut may be used for tightening, or a screw may be used. A through hole may be provided so as to communicate with each of the rod 8 and the nut 9, and a split pin may be inserted into the through hole.
【００１５】インサートブッシュ３は合成樹脂製からな
り、略円筒状の胴部11の一端に開口部12を設けると共
に、他端を閉塞して閉塞端部13となしている。The insert bush 3 is made of synthetic resin, and has an opening 12 provided at one end of a substantially cylindrical body 11, and the other end is closed to form a closed end 13.
【００１６】14は前記閉塞端部13の外周方向へ拡径状に
突出形成したフランジであり、該フランジ14の周縁部に
は円環状のリム15を開口部12側へ突出する様に一体的に
形成している。Reference numeral 14 denotes a flange formed so as to radially expand in the outer peripheral direction of the closed end portion 13, and an annular rim 15 is integrally formed on the peripheral portion of the flange 14 so as to project toward the opening 12 side. Is formed.
【００１７】16は胴部11外周において、所定間隔置きに
して且つ軸線方向に複数突出形成したリブであり、該リ
ブ16は閉塞端部13へ至るに従い徐々に高く傾斜した略三
角板状に形成しており、リブ16の最高部位16a とリム15
間には間隙17を設けている。A plurality of ribs 16 are formed on the outer periphery of the body 11 at predetermined intervals and are formed to project in the axial direction. The ribs 16 are formed in a substantially triangular plate shape which is gradually inclined higher toward the closed end 13. And the highest part 16a of the rib 16 and the rim 15
A gap 17 is provided between them.
【００１８】又、インサートブッシュ３の内方におい
て、開口部12内周にはインサートブッシュ装着部６に合
致した受口部18を形成し、該受口部18に連続してこれよ
り小径に形成した吊下げ金具螺着用の雌ねじ部19を閉塞
端部13に至るまで刻設している。Further, inside the insert bush 3, a receiving portion 18 is formed on the inner periphery of the opening 12 in conformity with the insert bush mounting portion 6, and is formed continuously with the receiving portion 18 and has a smaller diameter than this. A female thread portion 19 for screwing the hanging metal fitting is engraved up to the closed end portion 13.
【００１９】尚、上記において、雌ねじ部19を受口部18
に連続して設けたものを示したが、図５に示す様に受口
部18より若干の間隔を設けて雌ねじ部19を設けても良
い。In the above, the female screw portion 19 and the receiving portion 18
However, as shown in FIG. 5, the female screw portion 19 may be provided at a slight distance from the receiving portion 18.
【００２０】又、インサートブッシュ３は上記の構成の
ものに限定されず、要するにインサートブッシュ３の胴
部11外周にフランジ、抜止め突起、抜止め突条等の抜止
め手段を設けたものであれば良い。Further, the insert bush 3 is not limited to the one having the above-mentioned construction, and in short, it may be any one provided with a retaining means such as a flange, a retaining projection, a retaining ridge or the like on the outer periphery of the body portion 11 of the insert bush 3. Good.
【００２１】そして、型枠１の内側面Ｉに突出したイン
サートブッシュ固定具４のインサートブッシュ装着部６
にインサートブッシュ３の受口部18を螺着することによ
り、型枠１の内側面Ｉにインサートブッシュ３を密着固
定する様になしている。Then, the insert bush mounting portion 6 of the insert bush fixing tool 4 projecting on the inner surface I of the mold 1
The socket 18 of the insert bushing 3 is screwed onto the insert bushing 3 so that the insert bushing 3 is closely fixed to the inner side surface I of the mold 1.
【００２２】次に本発明に係るインサートブッシュの結
合構造の作用について説明すると、型枠１の内側面Ｉ側
からインサートブッシュ固定具４の螺子棒８を透孔２に
挿通し、型枠１の外側面Ｏより突出する螺子棒８にナッ
ト９、9aを螺着して、型枠１の内側面Ｉにインサートブ
ッシュ固定具４のインサートブッシュ装着部６を突出固
定し、該インサートブッシュ装着部６にインサートブッ
シュ３の受口部18を螺着する。Next, the operation of the insert bush connecting structure according to the present invention will be described. The screw rod 8 of the insert bush fixing tool 4 is inserted into the through hole 2 from the inner surface I side of the mold 1 to form the mold 1. Nuts 9 and 9a are screwed onto a screw rod 8 projecting from the outer side surface O, and the insert bush mounting portion 6 of the insert bush fixing tool 4 is projectingly fixed to the inner side surface I of the mold 1, and the insert bush mounting portion 6 The socket portion 18 of the insert bush 3 is screwed onto.
【００２３】インサートブッシュ３の螺着に際しては、
インサートブッシュ装着部６に対しインサートブッシュ
を一回転させることにより、型枠１の内側面Ｉにインサ
ートブッシュ３の開口部12端面を密着させられ、インサ
ートブッシュ３を型枠１に対し強固な密着固定状態と成
す。When screwing the insert bush 3,
By rotating the insert bush once with respect to the insert bush mounting portion 6, the end face of the opening 12 of the insert bush 3 is brought into close contact with the inner side surface I of the form 1, and the insert bush 3 is firmly and closely fixed to the form 1. Make a state.
【００２４】又、インサートブッシュ固定具４は型枠１
に溶接固定したものでなく、ナット９、9aで固定してい
るため、インサートブッシュ１の大きさに対応したイン
サートブッシュ装着部６を有するインサートブッシュ固
定具４を交換することが出来る。Further, the insert bush fixture 4 is a mold 1
Since it is fixed by the nuts 9 and 9a instead of being fixed by welding, the insert bush fixture 4 having the insert bush mounting portion 6 corresponding to the size of the insert bush 1 can be replaced.
【００２５】そして、型枠１を固定側の型枠1aに対して
閉じ、型枠１、1a内にコンクリートを打設し、コンクリ
ートの養生固化後、コンクリート製品Ｗを脱型する。Then, the mold 1 is closed with respect to the fixed mold 1a, concrete is poured into the molds 1 and 1a, and after the concrete is cured and solidified, the concrete product W is demolded.
【００２６】尚、インサートブッシュ３の内方はインサ
ートブッシュ固定具４の空気孔10により外方連通してお
り、該空気孔10によりコンクリートの蒸気養成時にイン
サートブッシュ３内の空気が膨張してインサートブッシ
ュ３が変形し、それによるコンクリートとの密着性の低
下を招来することのない様に外部への空気抜きを図って
いる。The inside of the insert bush 3 is communicated with the outside by the air hole 10 of the insert bush fixing tool 4, and the air in the insert bush 3 is expanded by the air hole 10 when concrete is steam-trained. Air is vented to the outside so that the bush 3 is not deformed and the adhesion to concrete is deteriorated thereby.
【００２７】脱型時には型枠１を回動するのであるが、
この時インサートブッシュ固定具４は型枠１に固定され
ているため、型枠１の開放側への回動操作によりインサ
ートブッシュ装着部６はこれと結合状態にあるインサー
トブッシュ３の受口部18より型枠１と共に強制的に離脱
される。When the mold is removed, the mold 1 is rotated.
At this time, since the insert bush fixing tool 4 is fixed to the mold 1, the insert bush mounting portion 6 is engaged with the receiving portion 18 of the insert bush 3 which is in a coupled state by rotating the mold 1 toward the open side. It is forcibly removed together with the formwork 1.
【００２８】以上の脱型作業により、インサートブッシ
ュ３はその開口部12端面をコンクリート製品Ｗの側壁W1
に露出する。As a result of the above demolding work, the insert bush 3 has the end face of the opening 12 at the side wall W1 of the concrete product W.
Exposure to
【００２９】そして、コンクリート製品Ｗの吊下げ時に
おいては、インサートブッシュ３の雌ねじ部19に吊下げ
金具 (図示せず) のシャフトを螺着し、該シャフトに回
動自在に装着したシャッフルにワイヤーロープを掛止し
て、該ワイヤーロープをクレーンにてフックし、コンク
リート製品Ｗを吊下げ移動可能とする。When suspending the concrete product W, a shaft of a suspending metal fitting (not shown) is screwed to the female screw portion 19 of the insert bush 3 and a wire is attached to the shuffle rotatably mounted on the shaft. The rope is hooked and the wire rope is hooked by a crane so that the concrete product W can be hung and moved.
【００３０】かかる吊下げ状態において、リブ16はイン
サートブッシュ３の周囲に閉塞端部13へ至るに従い徐々
に高く傾斜して突設してなるため、回動方向及び引っ張
り方向の掛止作用を有し、フランジ14はリム15を開口部
12側に突出した断面略鉤状であるため、引っ張り方向の
掛止作用を有し、これらインサートブッシュ３の各部の
抜止め機能により、コンクリート製品Ｗの吊下げ時にお
いて、インサートブッシュ３の周囲に生ずる応力を分散
でき、よってインサートブッシュ３の埋設位置近辺にひ
び割れ、欠け等の損傷がなく、コンクリート製品Ｗの強
度の安定を図ることができると共に、吊下げ移動中のコ
ンクリート製品Ｗからインサートブッシュ３が抜け出す
ことを防止して安全な作業を行える。In such a suspended state, the rib 16 is provided so as to gradually incline around the insert bush 3 as it reaches the closed end portion 13, and therefore has a hooking action in the rotating direction and the pulling direction. And the flange 14 opens the rim 15
It has a hooking action in the pulling direction because it has a substantially hook-shaped cross section that protrudes to the 12 side, and due to the retaining function of each part of these insert bushes 3, when the concrete product W is hung, the surroundings of the insert bushes 3 The generated stress can be dispersed, so that there is no damage such as cracking or chipping in the vicinity of the burying position of the insert bush 3 and the strength of the concrete product W can be stabilized. Can be prevented from coming out and safe work can be performed.
【００３１】[0031]
【発明の効果】要するに本発明は、型枠１内側面Ｉの所
定位置に略半球形状の基体外周に１リード分のねじ山部
５を設けたインサートブッシュ装着部６を突設し、該イ
ンサートブッシュ装着部６より軟質材料からなるインサ
ートブッシュ３の開口部12内周に、前記インサートブッ
シュ装着部６に合致する受口部18を設け、前記インサー
トブッシュ装着部６にインサートブッシュ３を螺着した
ので、型枠１の内側面Ｉ側に突出するインサートブッシ
ュ装着部６にインサートブッシュ３を装着するに際し、
インサートブッシュ装着部６のねじ山部５を１リード分
となすことによって、１回転でインサートブッシュ３を
インサートブッシュ装着部６に簡単に螺着でき、型枠１
とインサートブッシュ３とをコンクリート製品Ｗの打設
時に生じる衝撃にも充分耐えられる強固な密着固定状態
と成すことが出来、よってコンクリートのインサートブ
ッシュ３内への侵入を防止できると共に、コンクリート
製品Ｗの側壁W1内の所定位置にインサートブッシュ３が
ズレることなく埋設できる。In summary, according to the present invention, the insert bush mounting portion 6 provided with the thread portion 5 for one lead on the outer periphery of the substantially hemispherical base is provided at a predetermined position on the inner surface I of the mold 1, and the insert bush mounting portion 6 is provided. A receiving portion 18 matching the insert bush mounting portion 6 is provided on the inner periphery of the opening 12 of the insert bush 3 made of a softer material than the bush mounting portion 6, and the insert bush 3 is screwed to the insert bush mounting portion 6. Therefore, when mounting the insert bush 3 on the insert bush mounting portion 6 protruding to the inner surface I side of the form 1,
By forming the thread portion 5 of the insert bush mounting portion 6 for one lead, the insert bush 3 can be easily screwed into the insert bush mounting portion 6 by one rotation, and the form 1
The insert bush 3 and the insert bush 3 can be firmly adhered and fixed enough to withstand the impact generated when the concrete product W is placed. Therefore, the concrete can be prevented from entering the insert bush 3 and the concrete product W The insert bush 3 can be embedded at a predetermined position in the side wall W1 without displacement.
【００３２】又、インサートブッシュ装着部６のねじ山
部５は１リード分で、ねじ山条数が略１山分であると共
に、インサートブッシュ装着部６はインサートブッシュ
３より硬質であるため、脱型時の型枠１の開放側への回
動力にてインサートブッシュ３の受口部18より型枠１ご
とインサートブッシュ装着部６を簡単に離脱することが
出来、その脱型作業を簡単にして、且つ効率良く行え
る。Since the thread portion 5 of the insert bush mounting portion 6 has one lead and the number of thread threads is approximately one thread, and the insert bush mounting portion 6 is harder than the insert bush 3, The insert bush mounting portion 6 together with the mold 1 can be easily removed from the receiving portion 18 of the insert bush 3 by the turning force to the open side of the mold 1 at the time of mold, which simplifies the demolding work. And can be done efficiently.
【００３３】又、インサートブッシュ３を装着固定した
インサートブッシュ装着部６はその基体を略半球形状に
形成してなるため、例えばインサートブッシュ装着部の
形状が円柱形のものでは、これが断面矩形状のため、脱
型時における型枠１の開放側への回動操作は、インサー
トブッシュ装着部の角部がインサートブッシュ３の受口
部18に引っ掛かり、型枠１を開放側へ回動させることが
できず、型枠１、1aのヒンジ部分を取り外す必要がある
が、本発明に係るインサートブッシュ装着部６は半球形
状で断面略円弧形状のため、型枠１の開放側への回動操
作において、受口部18の周面にインサートブッシュ装着
部６が引っ掛からずにスムーズに受口部18より離脱する
ことが出来る。Further, since the insert bush mounting portion 6 to which the insert bush 3 is mounted and fixed has its base body formed in a substantially hemispherical shape, for example, when the insert bush mounting portion has a cylindrical shape, this has a rectangular cross section. Therefore, when the mold 1 is rotated to the open side at the time of demolding, the corner portion of the insert bush mounting portion is caught in the receiving portion 18 of the insert bush 3, and the mold 1 can be rotated to the open side. Since it is not possible to remove the hinge portions of the molds 1 and 1a, the insert bush mounting portion 6 according to the present invention has a hemispherical shape and a substantially arcuate cross section, and therefore, when the mold 1 is rotated to the open side. The insert bush mounting portion 6 can be smoothly detached from the receiving portion 18 without being caught by the peripheral surface of the receiving portion 18.
【００３４】又、インサートブッシュ装着部６にはイン
サートブッシュ３内方と型枠１外方に連通する空気孔10
を設けたので、該空気孔10は型枠１、1a内のコンクリー
ト打設後のコンクリートの蒸気養成時にインサートブッ
シュ３内の空気が膨張してインサートブッシュ３が変形
し、それによるコンクリートとの密着性の低下を招来す
ることのない様に外部への空気抜きを図ることが出来、
インサートブッシュ３を所望する位置に変形、破損等の
支障なく、コンクリート製品Ｗと一体化させることが出
来る。Further, the insert bush mounting portion 6 has an air hole 10 communicating with the inside of the insert bush 3 and the outside of the mold 1.
Since the air holes 10 are provided, the air in the insert bush 3 expands and the insert bush 3 is deformed when the concrete in the formwork 1 and 1a is steam-trained after the concrete is poured, and the air tightness 10 adheres to the concrete. The air can be vented to the outside so that it does not cause deterioration in
The insert bush 3 can be integrated with the concrete product W at a desired position without any trouble such as deformation or damage.
【００３５】又、インサートブッシュ３内方には受口部
18より奥に、これより小径な吊下げ金具螺着用の雌ねじ
部19を設けたので、脱型時の型枠１の開放側への回動操
作によるインサートブッシュ装着部６の引き抜きで、受
口部18のねじ山が潰れても、吊下げ金具用の雌ねじ部19
は受口部18より小径にして、且つ受口部18より奥に形成
されているため、インサートブッシュ３に吊下げ金具を
装着するにあたって何らの支障はない等その実用的効果
甚だ大なるものである。Further, a receiving portion is provided inside the insert bush 3.
Since a female thread portion 19 for screwing a hanging metal fitting having a smaller diameter than this is provided in the back of 18, the insert bush mounting portion 6 is pulled out by turning the mold frame 1 to the open side at the time of demolding to receive the socket. Even if the thread of part 18 is crushed, female thread part 19 for hanging metal fittings
Has a smaller diameter than the receiving part 18 and is formed deeper than the receiving part 18, so that there is no hindrance when attaching the hanging metal fitting to the insert bush 3, and its practical effect is great. is there.
【図１】本発明に係るインサートブッシュの結合構造を
示す断面図である。FIG. 1 is a sectional view showing a coupling structure of an insert bush according to the present invention.
【図２】コンクリート製品の脱型操作を示す断面図であ
る。FIG. 2 is a sectional view showing a demolding operation of a concrete product.
【図３】図２の要部拡大図である。FIG. 3 is an enlarged view of a main part of FIG. 2;
【図４】インサートブッシュの斜視図である。FIG. 4 is a perspective view of an insert bush.
【図５】他の実施例を示す断面図である。FIG. 5 is a sectional view showing another embodiment.
１ 型枠 ３ インサートブッシュ ５ ねじ山部 ６ インサートブッシュ装着部 10 空気孔 12 開口部 18 受口部 19 雌ねじ部 Ｉ 内側面 1 Formwork 3 Insert Bushing 5 Thread Part 6 Insert Bushing Mounting Part 10 Air Hole 12 Opening Part 18 Receptacle Part 19 Female Thread Part I Inner Side
Claims (6)
体外周に１リード分のねじ山部を設けたインサートブッ
シュ装着部を突設し、該インサートブッシュ装着部より
軟質材料からなるインサートブッシュの開口部内周に、
前記インサートブッシュ装着部に合致する受口部を設
け、前記インサートブッシュ装着部にインサートブッシ
ュを螺着したことを特徴とするインサートブッシュの結
合構造。1. An insert bush mounting portion provided with a thread portion for one lead on the outer periphery of a substantially hemispherical base at a predetermined position on the inner surface of a mold, and an insert made of a softer material than the insert bush mounting portion. On the inner circumference of the opening of the bush,
An insert bush coupling structure, characterized in that a receiving portion that matches the insert bush mounting portion is provided, and the insert bush is screwed to the insert bush mounting portion.
トブッシュ内方と型枠外方に連通する空気孔を設けたこ
とを特徴とする請求項１のインサートブッシュの結合構
造。2. The connecting structure of the insert bush according to claim 1, wherein the insert bush mounting portion is provided with an air hole communicating with the inside of the insert bush and the outside of the mold.
奥に、これより小径な吊下げ金具螺着用の雌ねじ部を設
けたことを特徴とする請求項１又は２のインサートブッ
シュの結合構造。3. The connecting structure of the insert bush according to claim 1, wherein an internal thread portion for screwing a hanging metal fitting having a diameter smaller than that is provided inside the insert bush at a position deeper than the receiving portion.
山部を形成してなるインサートブッシュ装着部を設け、
該インサートブッシュ装着部を型枠内側面に突出する様
に型枠への着脱手段を設けたことを特徴とするインサー
トブッシュ固定具。4. An insert bush mounting portion formed by forming a thread portion for one lead on the outer periphery of a substantially hemispherical base,
An insert bush fixing tool, characterized in that a means for attaching to and detaching from the mold is provided so that the insert bush mounting portion projects to the inner surface of the mold.
態において、型枠の内外側面側に連通する空気孔を設け
たことを特徴とする請求項４のインサートブッシュ固定
具。5. The insert bush fixing tool according to claim 4, wherein an air hole communicating with the inner and outer side surfaces of the mold is provided in the mold fixing state of the insert bush fixing tool.
けた略円筒状のインサートブッシュにおいて、該インサ
ートブッシュの開口部内周に請求項４又は５のインサー
トブッシュ装着部に略合致形成した受口部を設けたこと
を特徴とするインサートブッシュ。6. A substantially cylindrical insert bush made of synthetic resin and provided with retaining means on the outer periphery thereof, wherein the inner periphery of the opening of the insert bush is formed to substantially match the insert bush mounting portion of claim 4. An insert bush characterized by having a mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8054000A JP3067997B2 (en) | 1996-02-16 | 1996-02-16 | Insert bushing coupling structure, insert bushing used therefor, and insert bushing fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8054000A JP3067997B2 (en) | 1996-02-16 | 1996-02-16 | Insert bushing coupling structure, insert bushing used therefor, and insert bushing fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09220713A true JPH09220713A (en) | 1997-08-26 |
| JP3067997B2 JP3067997B2 (en) | 2000-07-24 |
Family
ID=12958343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8054000A Expired - Lifetime JP3067997B2 (en) | 1996-02-16 | 1996-02-16 | Insert bushing coupling structure, insert bushing used therefor, and insert bushing fixture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3067997B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10315216A (en) * | 1997-05-22 | 1998-12-02 | Maeda Seisakusho:Kk | Concrete product form structure |
| JP2000027433A (en) * | 1998-07-06 | 2000-01-25 | Toko Sangyo Kk | Insert bush coupling structure, insert bush, and insert bush fixture |
| AU781708B2 (en) * | 1999-12-24 | 2005-06-09 | Retail & Commercial Properties Pty. Ltd. | Connecting ferrule |
| JP2009125967A (en) * | 2007-11-20 | 2009-06-11 | Tadashi Fujisawa | Insert with female screw for concrete product |
-
1996
- 1996-02-16 JP JP8054000A patent/JP3067997B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10315216A (en) * | 1997-05-22 | 1998-12-02 | Maeda Seisakusho:Kk | Concrete product form structure |
| JP2000027433A (en) * | 1998-07-06 | 2000-01-25 | Toko Sangyo Kk | Insert bush coupling structure, insert bush, and insert bush fixture |
| AU781708B2 (en) * | 1999-12-24 | 2005-06-09 | Retail & Commercial Properties Pty. Ltd. | Connecting ferrule |
| JP2009125967A (en) * | 2007-11-20 | 2009-06-11 | Tadashi Fujisawa | Insert with female screw for concrete product |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3067997B2 (en) | 2000-07-24 |
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