JP2548406Y2 - Insert bush - Google Patents
Insert bushInfo
- Publication number
- JP2548406Y2 JP2548406Y2 JP1993031982U JP3198293U JP2548406Y2 JP 2548406 Y2 JP2548406 Y2 JP 2548406Y2 JP 1993031982 U JP1993031982 U JP 1993031982U JP 3198293 U JP3198293 U JP 3198293U JP 2548406 Y2 JP2548406 Y2 JP 2548406Y2
- Authority
- JP
- Japan
- Prior art keywords
- bush
- concrete product
- protruding
- insert
- concrete
- 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 - Lifetime
Links
Landscapes
- Sewage (AREA)
- Load-Engaging Elements For Cranes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案はＵ字溝等のコンクリート
製品に吊下げ金具を螺着するためにコンクリート製品内
に予め埋設するインサートブッシュに関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insert bush which is buried in a concrete product such as a U-shaped groove or the like in order to screw a hanging bracket to the concrete product.
【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
固定支持するために、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側壁の外側面に
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 insert at a fixing position of a hanging metal fitting for fixing and supporting a hanging metal fitting for hanging a hanging wire rope. The bush is buried in advance so that its opening is exposed on the outer surface of the side wall, and when transporting concrete products or laying it on site, a wire rope is hung on a hanging bracket inserted from the opening of the insert bush. Work was carried out by suspending and moving concrete products with a crane.
【０００３】しかしながら、インサートブッシュはその
形状を単に円筒形となしているだけのため、コンクリー
ト製品の吊下げの際、コンクリート製品内におけるイン
サートブッシュの周囲付近に過大な応力が集中すると、
その応力を分散できずコンクリート製品はひび割れ、欠
け等の損傷を生じ、インサートブッシュが抜け出て事故
となる危険性を有していた。[0003] However, since the insert bush is merely formed in a cylindrical shape, when excessive stress is concentrated near the periphery of the insert bush in the concrete product during suspension of the concrete product,
The stress could not be dispersed, and the concrete product was damaged, such as cracking and chipping, and there was a risk that the insert bush would come off and cause an accident.
【０００４】[0004]
【考案が解決しようとする課題】本考案はＵ字溝等のコ
ンクリート製品の吊下げ時において、インサートブッシ
ュに生ずる応力を分散してコンクリート製品からの抜止
めを図り、安全に吊下げ作業できる様にしたインサート
ブッシュを提供せんとするものである。[Problem to be Solved by the Invention] The present invention disperses the stress generated in the insert bush when suspending a concrete product such as a U-shaped groove to prevent the insert bush from coming off from the concrete product, thereby enabling safe suspension work. The purpose of the present invention is to provide an insert bush having a reduced thickness.
【０００５】[0005]
【課題を解決するための手段】本考案は上記従来技術に
基づく、コンクリート製品の吊下げ時にインサートブッ
シュに生ずる応力を分散する課題に鑑み、ブッシュ本体
を有底筒状に形成し、該ブッシュ本体外周には所定間隔
置きにして且つ軸線方向に複数のリブを突出形成し、ブ
ッシュ本体の閉塞端部にはリムを開口部側へ突出したフ
ランジを外周方向に突出形成すると共に、複数の突棒を
軸線方向に突設し、該突棒の各長さはブッシュ本体の長
さを合わせてコンクリート製品の埋設位置の肉厚と同一
に設定したインサートブッシュを提供することにより、
抜止め機能を有するブッシュ本体の各部のリブ、フラン
ジ、突棒によってブッシュ本体に生ずる応力を分散する
様にして、上記欠点を解決せんとしたものである。DISCLOSURE OF THE INVENTION The present invention has been made in consideration of the problem of dispersing a stress generated in an insert bush when a concrete product is suspended, based on the prior art, and the bush body is formed in a bottomed cylindrical shape. A plurality of ribs are formed on the outer periphery at predetermined intervals and project in the axial direction, and a flange having a rim protruding toward the opening is formed on the closed end of the bush body in the outer circumferential direction. By protruding in the axial direction, the length of each protruding bar is adjusted to match the length of the bush body to provide an insert bush that is set to be the same as the thickness of the embedding position of the concrete product,
The above-mentioned drawbacks have been solved by dispersing the stress generated in the bush main body by the ribs, flanges, and protruding bars of each part of the bush main body having a retaining function.
【０００６】[0006]
【実施例】以下本考案の一実施例を図面に基づいて説明
すると、１は合成樹脂製にて有底筒状に形成したブッシ
ュ本体であり、該ブッシュ本体１は胴部２を略円筒状に
形成すると共に、該胴部２の一端にこれより連続して徐
々に先細りとなる筒状のテーパー部３を形成し、又胴部
２の他端は閉鎖して閉塞端部４となしている。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a bush main body formed of a synthetic resin and having a bottomed cylindrical shape. And a cylindrical tapered portion 3 that gradually tapers continuously from one end of the body 2, and the other end of the body 2 is closed to form a closed end 4. I have.
【０００７】又、ブッシュ本体１の内方はその開口部５
から胴部２へ至るまでのテーパー部３の内周を同一径に
形成して受口部６となし、該受口部６に連続する胴部２
の内方は縮径して閉塞端部４に至るまで雌螺子部７を刻
設している。The inside of the bush body 1 has an opening 5
The inner circumference of the tapered portion 3 from the upper portion to the body portion 2 is formed to have the same diameter as the receiving portion 6, and the body portion 2 continuous with the receiving portion 6 is formed.
The female screw portion 7 is engraved on the inner side of the inside to reach the closed end portion 4 by reducing the diameter.
【０００８】８は胴部２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
８は閉塞端部４へ至るに従い徐々に高く傾斜してテーパ
ー状に形成している。A plurality of ribs 8 are formed at predetermined intervals on the outer periphery of the body 2 and are formed so as to protrude in the axial direction. I have.
【０００９】９は閉塞端部４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９の周縁部には開
口部５側へ円環状のリム10を一体的に突出形成してい
る。Reference numeral 9 denotes a flange formed so as to protrude outward in the outer peripheral direction of the closed end portion 4. An annular rim 10 is integrally formed at the peripheral edge of the flange 9 toward the opening 5. I have.
【００１０】１１は閉塞端部４から後方へ向かい軸線方
向に複数突設した突棒であり、該突棒１１は夫々同一長
さに形成してなり、突棒１１の長さは胴部２及びテーパ
ー部３からなるブッシュ本体１の長さを合わせてコンク
リート製品Ｗの埋設位置の肉厚と同一となる様に設定し
ており、コンクリート製品Ｗの埋設位置に応じて突棒１
１の長さは適宜選択される。Reference numeral 11 denotes a plurality of protruding rods projecting rearward from the closed end 4 in the axial direction. The protruding rods 11 are formed to have the same length. and it has set so as to be equal to the thickness of the buried position of the concrete products W combined length of the bushing body 1 made of the tapered portion 3, piercing rod 1 in accordance with the embedding position of the concrete products W
The length of 1 is appropriately selected.
【００１１】又、突棒11は閉塞端部４の中心を重心とす
る正三角形の頂点に対応した位置に突設したものを示し
たが、その本数及び突設位置はこれに限定されない。Further, the protruding rods 11 are shown as protruding at positions corresponding to the vertices of an equilateral triangle having the center of the closed end 4 as the center of gravity, but the number and the protruding positions are not limited thereto.
【００１２】12はコンクリート製品Ｗの型枠であり、該
型枠12は固定側の型枠12a に対し開閉自在に設けてな
り、該型枠12の所定位置には合成樹脂製からなる固定具
13を設けている。Reference numeral 12 denotes a mold for the concrete product W. The mold 12 is provided to be freely openable and closable with respect to the fixed-side mold 12a, and a fixing tool made of synthetic resin is provided at a predetermined position of the mold 12.
13 are provided.
【００１３】前記固定具13はブッシュ本体１の受口部６
より若干大径に設定した略半球形状の係合部14を形成す
ると共に、該係合部14の平坦部15の中心に螺子棒16を突
設し、該螺子棒16を型枠12の所定位置に設けた透孔17に
貫通して螺子棒16にナット18を螺合している。The fixture 13 is provided at the receiving portion 6 of the bush body 1.
A substantially hemispherical engaging portion 14 having a slightly larger diameter is formed, and a screw rod 16 is protruded from the center of a flat portion 15 of the engaging portion 14 so that the screw rod 16 A nut 18 is screwed into the screw rod 16 through a through hole 17 provided at the position.
【００１４】次に本考案に係るインサートブッシュの作
用について説明すると、先ず、ブッシュ本体１をコンク
リート製品Ｗ内に埋設するには型枠12内側面に突設した
固定具13の係合部14をブッシュ本体１の受口部６内に嵌
挿して型枠12内側面にブッシュ本体１の開口部５端面を
密着させる。Next, the operation of the insert bush according to the present invention will be described. First, in order to embed the bush main body 1 in the concrete product W, the engaging portion 14 of the fixture 13 projecting from the inner side surface of the mold 12 is used. The end face of the opening 5 of the bush main body 1 is brought into close contact with the inner surface of the mold frame 12 by being inserted into the socket 6 of the bush main body 1.
【００１５】かかる係合部14の嵌挿過程を説明すると、
係合部14は受口部６より若干大径に設定してなるが、そ
の材質特性にて弾性縮径する様に受口部６に嵌挿され、
該受口部６内では係合部14の弾性力により受口部６周面
を押圧し、ブッシュ本体１は係合部14に対し弾性的に嵌
挿固定される。The process of inserting the engaging portion 14 will be described.
Although the engaging portion 14 is set to have a slightly larger diameter than the receiving portion 6, the engaging portion 14 is inserted into the receiving portion 6 so as to elastically reduce its diameter due to its material characteristics.
In the receiving portion 6, the peripheral surface of the receiving portion 6 is pressed by the elastic force of the engaging portion 14, and the bush main body 1 is elastically fitted and fixed to the engaging portion 14.
【００１６】次に、型枠１２を固定側の型枠１２ａに対
して閉じると、ブッシュ本体１と突棒１１を合わせた全
長がコンクリート製品Ｗの埋設位置の肉厚と同一なた
め、突棒１１の先端が型枠１２ａに当接し、かかる状態
にて型枠１２、１２ａ内に、コンクリートを打設し、養
生固化後、型枠１２ａを回動して受口部６より係合部１
４を離脱することにより、ブッシュ本体１の開口部５端
面はコンクリート製品Ｗの側壁Ｗ１に面一に露出し、ブ
ッシュ本体１はコンクリート製品Ｗ内の所定位置に埋設
される。Next, when the mold frame 12 is closed with respect to the fixed mold frame 12a, the total length of the bush body 1 and the projecting bar 11 is the same as the thickness of the concrete product W at the embedding position. 11 is in contact with the formwork 12a and is in such a state.
Concrete is poured into the formwork 12 and 12a at
After the solidification, the mold 12a is rotated and the engagement portion 1 is
By detaching the bush 4, the end face of the opening 5 of the bush body 1 is exposed flush with the side wall W1 of the concrete product W, and the bush body 1 is buried at a predetermined position in the concrete product W.
【００１７】そして、コンクリート製品Ｗの吊下げ時に
おいては、ブッシュ本体１の雌螺子部７に吊下げ金具の
(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。At the time of suspending the concrete product W, a suspending metal fitting is attached to the female screw portion 7 of the bush body 1.
(Not shown), a wire rope is hung on a shuffle rotatably mounted on the shaft,
The wire rope is hooked by a crane, and the concrete product W can be suspended and moved.
【００１８】[0018]
【考案の効果】要するに本考案は、ブッシュ本体１を有
底筒状に形成し、該ブッシュ本体１外周に所定間隔置き
にして、且つ軸線方向に複数のリブ８を突出形成し、ブ
ッシュ本体１の閉塞端部４にリム１０を開口部５側へ突
出したフランジ９を外周方向に突出形成したインサート
ブッシュにおいて、前記閉塞端部４適所に複数の突棒１
１を軸線方向に突設したので、型枠１２、１２ａ内への
コンクリート打設時において、コンクリートに混在する
粗骨材等が突棒１１間に介在しても、コンクリートが突
棒１１間をすり抜け、各突棒１１とコンクリートが一体
化し、有効な抜止め機能を具有できるのであり、例え
ば、実開平３−８９７８１号公報に記載の様に、底面蓋
をブッシュ本体より離脱しても、ブッシュ本体自体に抜
止め機能を具有せねばならないために、略三角形状の突
片を底面蓋自体に設けずに、底面蓋の外周に設けねばな
らないことによる欠点、即ち、型枠内へのコンクリート
打設時において、コンクリートに混在する粗骨材等が突
片間に介在して、コンクリートが突片間に介入できない
ため、突片で囲まれた部分に空隙を生じ、コンクリート
との一体化と、有効な抜止め機能を果たすことが出来
ず、又突片間に生ずる空隙より、コンクリート製品自体
に亀裂、欠損を生じ、強度低下を招来する欠点を完全に
解消している。 又、リブ８は、テーパー状にブッシュ本
体１の周囲に突出しているため、回動方向及び引っ張り
方向の掛止作用を有し、フランジ９は、リム１０を開口
部５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、突棒１１は、閉塞端部４より後方へ
突出しているため、夫々回動方向の掛止作用を有し、こ
れらブッシュ本体１の各部夫々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、ブッシュ本体１
の周囲に生ずる応力を分散でき、よってブッシュ本体１
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からブッシュ本体
１が抜け出すことを防止して安全な作業を行える。 [Effect of the invention] In summary the present invention forms a bushing body 1 in a bottomed tubular shape, and every predetermined interval in the bush main body 1 outer circumference, a plurality of ribs 8 projecting form in the axial direction and, bushing body 1 Insert having a flange 9 protruding in the outer circumferential direction at the closed end 4 of the rim 10 protruding toward the opening 5 side
In the bush, a plurality of protruding rods 1
1 protrudes in the axial direction, so that the
Mixed with concrete when casting concrete
Even if coarse aggregate or the like is interposed between
Sliding through the rods 11, each rod 11 and concrete are integrated
And have an effective retaining function.
For example, as described in Japanese Utility Model Laid-Open Publication No. 3-89781, the bottom cover
Is pulled out of the bush body itself
Since it must have a stop function, a substantially triangular projection
The piece must be provided on the outer periphery of the bottom lid, not on the bottom lid itself.
Drawback, namely concrete in the formwork
At the time of casting, coarse aggregates mixed with concrete
Concrete cannot intervene between projecting pieces because of interposition
Therefore, a gap is created in the area surrounded by
And effective stop function.
The concrete product itself
Cracks and breaks in the steel, which completely reduces the
Has been resolved. Also, the rib 8 is a bushing
Because it protrudes around the body 1, the direction of rotation and pulling
The flange 9 opens the rim 10
Since it has a generally hook-shaped cross section that protrudes toward the part 5, the pulling direction
And the protruding rod 11 is moved backward from the closed end 4.
Since they protrude, each has a locking action in the rotation direction,
By the retaining function of each part of the bush body 1,
When suspending the concrete product W, the bush body 1
Of the bush body 1 can be dispersed.
There is no damage such as cracks, chips, etc.
It is possible to stabilize the strength of cleat product W
At first, the bush body
1 can be prevented from slipping out and safe work can be performed.
【００１９】又、突棒１１の各長さはブッシュ本体１の
長さを合わせてコンクリート製品Ｗの埋設位置の肉厚と
同一に設定したので、ブッシュ本体１のコンクリート製
品Ｗ内への埋設操作は、型枠１２に設けた固定具１３の
係合部１４に対しブッシュ本体１を弾性的に嵌挿固定
し、型枠１２内側面にブッシュ本体１の開口部５端面を
密着させ、固定側の型枠１２ａに対し型枠１２を回動し
て閉じるため、突棒１１の先端は型枠１２ａに当接する
ことになり、その結果ブッシュ本体１は、型枠１２、１
２ａ間にて押圧保持されるため、その埋設位置での固定
状態を確実堅固に保持できる。 The length of the protruding rod 11 is
Adjust the length and the wall thickness of the concrete product W
As the same setting, the bush body 1 made of concrete
The burying operation in the article W is performed by using the fixture 13 provided on the formwork 12.
The bush main body 1 is elastically fitted and fixed to the engaging portion 14.
Then, the end face of the opening 5 of the bush body 1 is
The mold 12 is rotated with respect to the fixed-side mold 12a.
The tip of the protruding rod 11 contacts the formwork 12a
As a result, the bush body 1 is
Since it is pressed and held between 2a, it is fixed at its buried position
The state can be securely held.
【００２０】又、ブッシュ本体１を弾性的に嵌挿固定し
た固定具13の係合部14は球面状に形成してなるため、例
えば係合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12の開放側への回動操作
は、係合部の角部がブッシュ本体１の受口部６に引っ掛
かり、型枠12を開放側へ回動させることができず、型枠
12、12a のヒンジ部分を取り外す必要があるが、上記固
定具13の係合部14は球面状で断面円弧形状のため、型枠
12の開放側への回動操作において、受口部６の周面に係
合部14が引っ掛からずにスムーズに受口部６より離脱す
ることができ、その脱型作業を簡単にできる等その実用
的効果甚だ大なるものである。Further, since the engaging portion 14 of the fixing member 13 into which the bush body 1 is elastically fitted and fixed is formed in a spherical shape, for example, if the engaging portion has a columnar shape, it has a rectangular cross section. Due to the shape, the turning operation of the mold frame 12 to the open side at the time of releasing the mold is performed in such a manner that the corner portion of the engaging portion is hooked on the receiving portion 6 of the bush body 1 and the mold frame 12 is turned to the open side. Can not form
Although it is necessary to remove the hinge portions 12 and 12a, since the engaging portion 14 of the fixing device 13 is spherical and has a circular cross section,
In the operation of rotating the opening 12 to the open side, the engaging portion 14 can be smoothly detached from the receiving portion 6 without being caught on the peripheral surface of the receiving portion 6, and the removal work can be simplified. The practical effect is enormous.
【図１】本考案に係るインサートブッシュの正面図であ
る。FIG. 1 is a front view of an insert bush according to the present invention.
【図２】図１の平面図である。FIG. 2 is a plan view of FIG.
【図３】図１の左側面図である。FIG. 3 is a left side view of FIG.
【図４】図１の右側面図である。FIG. 4 is a right side view of FIG. 1;
【図５】図２のＡーＡ断面図である。FIG. 5 is a sectional view taken along the line AA of FIG. 2;
【図６】本考案に係るインサートブッシュの埋設状態を
示す断面図である。FIG. 6 is a cross-sectional view showing an embedded state of the insert bush according to the present invention.
【図７】コンクリート製品の脱型操作を示す断面図であ
る。FIG. 7 is a cross-sectional view showing a demolding operation of a concrete product.
【図８】図７の要部拡大図である。FIG. 8 is an enlarged view of a main part of FIG. 7;
１ ブッシュ本体 ４ 閉塞端部 ５ 開口部 ８ リブ ９ フランジ 10 リム 11 突棒 Ｗ コンクリート製品 Reference Signs List 1 bush body 4 closed end 5 opening 8 rib 9 flange 10 rim 11 boss W concrete product
Claims (1)
ッシュ本体外周に所定間隔置きにして且つ軸線方向に複
数のリブを突出形成し、ブッシュ本体の閉塞端部にリム
を開口部側へ突出したフランジを外周方向に突出形成し
たインサートブッシュにおいて、前記閉塞端部適所に複
数の突棒を軸線方向に突設し、該突棒の各長さはブッシ
ュ本体の長さを合わせてコンクリート製品の埋設位置の
肉厚と同一に設定したことを特徴とするインサートブッ
シュ。1. A forming the bushing body to the bottomed tubular, the bush main body outer circumference a plurality of ribs projecting form and in the axial direction by every predetermined interval, opening side rim in the closed end of the bushing body the protruding flange protrudes formed in the outer circumferential direction to
In the insert bush, a plurality of protruding rods are protruded in the closed end portion at appropriate positions in the axial direction, and the lengths of the protruding rods are adjusted according to the length of the bush body to determine the embedding position of the concrete product. An insert bush characterized by having the same thickness as the wall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993031982U JP2548406Y2 (en) | 1993-05-21 | 1993-05-21 | Insert bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993031982U JP2548406Y2 (en) | 1993-05-21 | 1993-05-21 | Insert bush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0685483U JPH0685483U (en) | 1994-12-06 |
| JP2548406Y2 true JP2548406Y2 (en) | 1997-09-24 |
Family
ID=12346149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993031982U Expired - Lifetime JP2548406Y2 (en) | 1993-05-21 | 1993-05-21 | Insert bush |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2548406Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59109446A (en) * | 1982-12-16 | 1984-06-25 | Tsuneo Nanbu | Sharp stopping apparatus for car |
| JP3089781U (en) * | 2002-05-08 | 2002-11-08 | 船井電機株式会社 | Printing device |
-
1993
- 1993-05-21 JP JP1993031982U patent/JP2548406Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0685483U (en) | 1994-12-06 |
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