JP2000061920A - Retaining device for insert to be embedded into concrete molding - Google Patents
Retaining device for insert to be embedded into concrete moldingInfo
- Publication number
- JP2000061920A JP2000061920A JP10229073A JP22907398A JP2000061920A JP 2000061920 A JP2000061920 A JP 2000061920A JP 10229073 A JP10229073 A JP 10229073A JP 22907398 A JP22907398 A JP 22907398A JP 2000061920 A JP2000061920 A JP 2000061920A
- Authority
- JP
- Japan
- Prior art keywords
- insert
- side member
- mold
- cylindrical
- nut
- 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
- Joining Of Building Structures In Genera (AREA)
- Moulds, Cores, Or Mandrels (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、コンクリート成形
品への埋入用インサート保持装置に関する。TECHNICAL FIELD The present invention relates to an insert holding device for embedding in a concrete molded product.
【0002】[0002]
【従来の技術】コンクリート成形品にボルト取付け用雌
ねじ付きインサートを、その成形時に埋入するために、
インサートを型枠に保持させるインサートの保持装置は
従来より知られているが、なかでも脱型時に保持具をコ
ンクリート成形品に埋入せられたインサートからいちい
ち取り外す作業を不要にしたものとして、つぎのような
インサートの保持装置が提案されている。すなわち、こ
の保持装置はインサートの雌ねじに合致する雄ねじを有
する棒状保持部と、棒状保持部に延長状に形成せられか
つ雄ねじを有する棒状取付け部とよりなるインサート保
持具と、所定箇所にあけられかつ棒状取付け部の雄ねじ
がねじ込まれる型枠のねじ孔とを備えており、インサー
ト保持具の保持部と取付け部の境には、脱型時に加わる
力によって破断するように設けられた薄肉部が形成せら
れており、取付け部から保持部にまたがってねじ回し係
合孔があけられているものである。2. Description of the Related Art In order to embed a female threaded insert for mounting bolts in a concrete molded product at the time of molding,
The insert holding device for holding the insert in the mold has been known in the past, but among them, it is not necessary to remove the holder from the insert embedded in the concrete molded product at the time of demolding. A holding device for such an insert has been proposed. That is, this holding device is provided with an insert holder including a rod-shaped holding portion having a male screw matching the female screw of the insert, and an rod-shaped mounting portion having an external screw formed on the rod-shaped holding portion in an extended shape, and opened at a predetermined position. And a screw hole of the form into which the male screw of the rod-shaped mounting portion is screwed, and a thin-walled portion provided at the boundary between the holding portion and the mounting portion of the insert holder so as to be broken by the force applied during demolding. It is formed, and a screwdriver engaging hole is opened from the mounting portion to the holding portion.
【0003】[0003]
【発明が解決しようとする課題】従来の上記インサート
保持装置では、成形品に埋入されるインサートの数が多
くなると、脱型しようとしてもインサート保持具の薄肉
部で破断せず、脱型が不可能となるという問題がある。In the conventional insert holding device described above, when the number of inserts embedded in the molded product is large, even if an attempt is made to release the mold, the thin portion of the insert holder is not broken and the mold is released. There is a problem that it becomes impossible.
【0004】本発明の目的は、脱型時に加わる力によっ
てインサート保持具が破断可能な場合は破断により脱型
し、さらに破断し得ない場合にも型枠に一部を残したま
ま型枠からインサート保持具を抜き取ることにより脱型
を可能とするコンクリート成形品への埋入用インサート
保持装置を提供するにある。The object of the present invention is to remove the insert holder from the mold when the insert holder can be broken by the force applied when the mold is removed, and even when the insert holder cannot be further broken, the insert holder is left partly in the mold to leave the mold. (EN) It is an object to provide an insert holding device for embedding in a concrete molded product, which enables demolding by pulling out the insert holding tool.
【0005】[0005]
【課題を解決するための手段】請求項1の発明によるコ
ンクリート成形品への埋入用インサート保持装置は、イ
ンサート側部材および型枠側部材の2部材よりなるイン
サート保持具と、型枠の所定箇所にあけられた貫通孔の
外側周縁部に固着せられたナットとを備えており、イン
サート保持具のインサート側部材は、インサートのボル
ト取付け用雌ねじにねじ込まれる雄ねじおよび少なくと
も一対のねじ回し用係合部を有する筒状保持部と、筒状
保持部の基端に設けられているフランジと、フランジを
介して筒状保持部の反対側に突出しかつ外周面長さ方向
にのびた係合凹条を有する筒状突出部とよりなり、筒状
突出部の基端は脱型時に加わる力により破断するよう
に、筒状突出部の他の部分より薄肉となされており、イ
ンサート保持具の型枠側部材は、型枠のナットにねじ込
まれる雄ねじおよび内周面長さ方向にのびた係合凸条を
有しかつインサート側部材の筒状突出部の外周面と内周
面が合致する筒状取付け部よりなるものである。According to a first aspect of the present invention, there is provided an insert holding device for embedding in a concrete molded product, which is an insert holding tool including two members, an insert side member and a form side member, and a predetermined form. The insert-side member of the insert holder is a male screw screwed into the female screw for mounting bolts of the insert, and at least a pair of screwdrivers. A tubular holding portion having a mating portion, a flange provided at the base end of the tubular holding portion, and an engaging groove extending in the longitudinal direction of the outer peripheral surface and protruding to the opposite side of the tubular holding portion through the flange. And a base end of the tubular projection is made thinner than the other parts of the tubular projection so that the base end of the tubular projection is broken by the force applied at the time of demolding. The side member has a male screw to be screwed into the nut of the formwork and an engaging ridge extending in the lengthwise direction of the inner peripheral surface, and has a cylindrical mounting in which the outer peripheral surface and the inner peripheral surface of the cylindrical protruding portion of the insert side member match. It consists of parts.
【0006】請求項2の発明は、請求項1の発明による
コンクリート成形品への埋入用インサート保持装置にお
いて、型枠側部材の筒状取付け部の基端面内周側に、少
なくとも一対の切込みが設けられるとともに、筒状取付
け部の先端面に、少なくとも一対の嵌入突起が前記切込
みと対応するように設けられているものである。According to a second aspect of the present invention, in the insert holding device for embedding in a concrete molded article according to the first aspect of the invention, at least a pair of notches are formed on the inner peripheral side of the base end surface of the tubular mounting portion of the mold side member. And at least a pair of fitting projections are provided on the tip end surface of the cylindrical mounting portion so as to correspond to the cuts.
【0007】請求項3の発明は、請求項1の発明による
コンクリート成形品への埋入用インサート保持装置にお
いて、型枠のナットが、型枠の貫通孔の長さの一部には
め入れられた雌ねじ延長部を有するものである。According to a third aspect of the present invention, in the insert holding device for embedding in a concrete molded article according to the first aspect of the invention, the nut of the mold is fitted in a part of the length of the through hole of the mold. It has an internal thread extension.
【0008】[0008]
【発明の実施の形態】本発明の実施の形態を、以下図面
を参照して説明する。図7に鎖線で示すコンクリート成
形品への埋入用インサート保持具(H) は、合成樹脂製で
あって、インサート側部材(1) および型枠側部材(2) の
2部材よりなる。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. An insert holder (H) for embedding in a concrete molded product shown by a chain line in FIG. 7 is made of a synthetic resin and is composed of two members, an insert side member (1) and a form side member (2).
【0009】図8〜図14に示す型枠(3) の所定箇所に
あけられた貫通孔(4) の外側周縁部に溶接せられたナッ
ト(5) は、型枠(3) の貫通孔(4) の長さの一部にはめ入
れられた雌ねじ延長部(5a)を有する。The nut (5) welded to the outer peripheral edge of the through hole (4) formed at a predetermined position of the form (3) shown in FIGS. 8 to 14 is a through hole of the form (3). It has an internal thread extension (5a) fitted in a part of the length of (4).
【0010】インサート側部材(1) は、図1〜図3に示
されているように、インサート(6)のボルト取付け用雌
ねじ(7) (図7参照)にねじ込まれる雄ねじ(8) および
横断面V形凸条で内周面長さ方向にのびた一対のねじ回
し用係合部(9) を有する筒状保持部(10)と、筒状保持部
(10)の基端に設けられているフランジ(11)と、フランジ
(11)を介して筒状保持部(10)の反対側に突出しかつ外周
面長さ方向にのびた横断面V形の一対の係合凹条(12)を
有する筒状突出部(13)とよりなる。筒状突出部(13)の係
合凹条(12)は、筒状保持部(10)におけるねじ回し用係合
部(9) の延長線上に存在する。筒状突出部(13)の外径
は、筒状保持部(12)の内径にほぼ等しく、筒状突出部(1
3)の肉厚は、筒状保持部(10)の肉厚よりも薄い。そし
て、筒状保持部(10)と筒状突出部(13)の境界を介して前
者の一端内周面から後者の一端内周面にむけて先細とな
ったテーパ部(14)が形成せられている。筒状突出部(13)
の基端(13a) は、脱型時に加わる力により破断するよう
に、テーパ部(14)の存在で筒状突出部(13)の他の部分よ
り薄肉となされている(図1参照)。筒状突出部(13)の
先端には、外周面が横断面円弧状の抜止め膨出部(15)が
設けられている。また、フランジ(11)は、コンクリート
ののろがコンクリート打設時に雄ねじ(8) と雌ねじ(7)
のねじ合わせ部分に入り込むのを防ぎ、かつスプリング
・ワッシャと同様の作用をさせるために、雄ねじ(8) に
向かって浅い椀形に形成せられている。As shown in FIGS. 1 to 3, the insert side member (1) includes a male screw (8) screwed into a female screw (7) (see FIG. 7) for mounting a bolt of the insert (6) and a transverse screw. A cylindrical holding part (10) having a pair of screwdriver engaging parts (9) extending in the lengthwise direction of the inner peripheral surface of a V-shaped convex strip, and a cylindrical holding part.
Flange (11) provided at the base end of (10)
A tubular projection (13) having a pair of engaging recesses (12) having a V-shaped cross section and projecting to the opposite side of the tubular holding part (10) via the (11) and extending in the outer peripheral surface length direction; Consists of. The engagement groove (12) of the tubular protrusion (13) is present on an extension line of the screwdriver engagement portion (9) of the tubular holding portion (10). The outer diameter of the cylindrical protruding portion (13) is approximately equal to the inner diameter of the cylindrical holding portion (12), and the cylindrical protruding portion (1
The wall thickness of 3) is smaller than the wall thickness of the cylindrical holding portion (10). Then, a tapered portion (14) tapering from the inner peripheral surface of the former one end to the inner peripheral surface of the latter one is formed through the boundary between the cylindrical holding portion (10) and the cylindrical protruding portion (13). Has been. Cylindrical protrusion (13)
The base end (13a) of this is made thinner than the other parts of the cylindrical protrusion (13) due to the presence of the tapered portion (14) so as to be broken by the force applied at the time of demolding (see FIG. 1). At the tip of the cylindrical protruding portion (13), a retaining bulge portion (15) whose outer peripheral surface is arcuate in cross section is provided. Also, the flange (11) has a male thread (8) and a female thread (7) when the concrete lathe is poured into the concrete.
It has a shallow bowl shape towards the male thread (8) to prevent it from entering the threaded portion of the and to act like a spring washer.
【0011】インサート保持具(H) の型枠側部材(2)
は、図4〜図6に示されているように、型枠(3) のナッ
ト(5) にねじ込まれる雄ねじ(16)および内周面長さ方向
にのびた横断面V形の一対の係合凸条(17)を有しかつイ
ンサート側部材(1) の筒状突出部(13)と内周面が合致す
る筒状取付け部(18)よりなる。なお、型枠側部材(2)
は、型枠(3) に取り付けられた状態で、図示のようにナ
ット(5) 内に収まる大きさとすることが望ましい。型枠
(3) から型枠側部材(2) が突出する大きさであると、何
かがこれに当たって破損するおそれがあるからである。
筒状取付け部(18)の係合凸条(17)は、筒状突出部(13)の
係合凹条(12)に合致する。筒状取付け部(18)の先端内周
面には、インサート側部材(1) における筒状突出部(13)
の抜止め膨出部(15)が引掛かる段部(19)が形成せられて
いる。抜止め膨出部(15)の外径は、インサート保持具
(H) が若干弾性を有する合成樹脂製であることにより、
筒状取付け部(18)を通過して段部(19)に達しうるように
筒状取付け部(18)の内径より僅かに大きい程度となされ
ている。また、筒状取付け部(18)の基端面内周側に、一
対の切込み(20)が設けられるとともに、筒状取付け部(1
8)の先端面に、一対の嵌入突起(21)が前記切込み(20)と
対応するように設けられている。Form-side member (2) of the insert holder (H)
As shown in FIGS. 4 to 6, a male screw (16) screwed into the nut (5) of the form (3) and a pair of engagements having a V-shaped cross section extending in the lengthwise direction of the inner peripheral surface. It is composed of a tubular mounting portion (18) having a ridge (17) and having an inner peripheral surface matching the tubular protruding portion (13) of the insert side member (1). The mold side member (2)
It is desirable to have a size that fits inside the nut (5) as shown in the figure when it is attached to the formwork (3). Formwork
This is because if the mold side member (2) has a size that protrudes from (3), something may hit it and be damaged.
The engagement ridge (17) of the tubular mounting portion (18) matches the engagement ridge (12) of the tubular protrusion (13). On the inner peripheral surface of the tip of the cylindrical mounting part (18), the cylindrical protruding part (13) of the insert side member (1)
A step portion (19) is formed on which the retaining bulge portion (15) is hooked. The outer diameter of the retaining bulge (15) is
Since (H) is made of a synthetic resin with some elasticity,
The inner diameter of the tubular mounting portion (18) is slightly larger than the inner diameter of the tubular mounting portion (18) so that the stepped portion (19) can be reached by passing through the tubular mounting portion (18). A pair of notches (20) are provided on the inner peripheral side of the base end surface of the tubular mounting portion (18), and the tubular mounting portion (1
A pair of fitting protrusions (21) are provided on the front end surface of 8) so as to correspond to the notches (20).
【0012】型枠(3) が垂直の場合におけるインサート
保持具(H) の使用の仕方を説明する。まず、インサート
側部材(1) の筒状突出部(13)を型枠側部材(2) の筒状取
付け部(18)にはめ入れることにより、両部材(1)(2)を合
体させる。つぎに、型枠側部材(2) を手で持ってインサ
ート側部材(1) の雄ねじ(8) をインサート(6) の雌ねじ
(7) にねじ込んでから、インサート(6) を持って型枠側
部材(2) の雄ねじ(16)を型枠(3) の内側からその貫通孔
(4) を通して雌ねじ延長部(5a)を有するナット(5) にね
じ込むことにより、インサート(6) を型枠(3) に保持す
る(図8参照)。A method of using the insert holder (H) when the formwork (3) is vertical will be described. First, both members (1) and (2) are united by fitting the cylindrical protruding portion (13) of the insert side member (1) into the cylindrical mounting portion (18) of the formwork side member (2). Next, hold the formwork side member (2) by hand and insert the male screw (8) of the insert side member (1) into the female screw of the insert (6).
After screwing it into (7), hold the insert (6) and insert the male screw (16) of the mold side member (2) from the inside of the mold (3) into its through hole.
The insert (6) is held in the form (3) by screwing it into the nut (5) having the internal thread extension (5a) through (4) (see Figure 8).
【0013】この場合、ナット(5) が雌ねじ延長部(5a)
のない通常のものであると、型枠(3) の厚さ分型枠側部
材(2) の雄ねじ(16)が遊ぶことになるため、インサート
(6)自体の重量により、型枠(3) におけるインサート(6)
の保持が不安定となるが、上記にように、型枠(3) の
ナット(5) が、型枠(5) の貫通孔(4) の長さの一部には
め入れられた雌ねじ延長部(5a)を有するから、不安定に
なることがない。他方、雌ねじ延長部が貫通孔(4) の全
長にわたるものであるとすると、コンクリートの落下な
どによる衝撃を受けた場合、インサート側部材(1) にお
ける筒状突出部(13)の基端(13a) 薄肉部での不慮の破断
のおそれがあるが、貫通孔(4) の長さの残りの一部には
雌ねじ延長部(5a)が存在せず、この部分には空間がある
ため、このような心配もない。通常、鉄板製型枠(3) の
厚さは4.5mm程度、雌ねじ延長部(5a)の長さは2〜
2.5mm程度である。In this case, the nut (5) has a female screw extension (5a).
If it is a normal type without insert, the male screw (16) of the form side member (2) will play because of the thickness of the form (3), so the insert
(6) Insert (6) in formwork (3) due to its own weight
However, as described above, the nut (5) of the formwork (3) is inserted into a part of the length of the through hole (4) of the formwork (5) and the female screw extension is inserted. Since it has the part (5a), it does not become unstable. On the other hand, assuming that the female screw extension extends over the entire length of the through hole (4), when the impact from dropping of concrete is received, the base end (13a) of the cylindrical protrusion (13) of the insert side member (1) is ) Although there is a risk of accidental breakage in the thin portion, there is no internal thread extension (5a) in the remaining part of the length of the through hole (4), and there is space in this part, so this There is no such concern. Normally, the thickness of the iron plate formwork (3) is about 4.5 mm, and the length of the female screw extension (5a) is 2 to 5.
It is about 2.5 mm.
【0014】インサート(6) を型枠(3) に保持してから
コンクリート(C) を打設して硬化後に脱型するのである
が、脱型時に加わる力によって、筒状突出部(13)の基端
(13a) の薄肉部が破断する場合は、この破断により脱型
が可能となる(図9参照)。破断によりインサート(6)
に残った筒状保持部(10)は、コンクリート成形品にボル
トが取付けられるまで、インサート(6) の雌ねじ(7) の
保護用としてそのままおいておかれる。そして、ボルト
取付け時、+または−のねじ回しの先を筒状保持部(10)
にはめ入れ、これを一対のねじ回し用係合部(9) に係合
させ、雄ねじ(8) をねじ戻すことにより、筒状保持部(1
0)をインサート(6) から取り除く。型枠(3) のナット
(5) 内に残った型枠側部材(2) とインサート側部材(1)
の筒状突出部(13)は、つぎのようにして型枠(3) から取
り除かれる。すなわち、別の型枠側部材(2A)の一対の嵌
入突起(21)を残存型枠側部材(2) の一対の切込み(20)に
はめ入れ、残存型枠側部材(2) が型枠(3) の外側に抜け
るようにねじ回していく。すると、筒状突出部(13)は、
係合凹部(12)と係合凸部(17)との係合により、残存型枠
側部材(2) もろとも型枠(3) より取り除かれる。The insert (6) is held on the mold (3) and then the concrete (C) is poured into the mold (3) to be demolded after hardening. However, due to the force applied at the time of demolding, the cylindrical protrusion (13) The base of
When the thin portion of (13a) breaks, this break allows demolding (see FIG. 9). Insert by breaking (6)
The tubular holding part (10) remaining in the above is left as it is for protecting the female screw (7) of the insert (6) until the bolt is attached to the concrete molded product. Then, when installing the bolt, the tip of the + or-screwdriver should be the cylindrical holding part (10).
The cylindrical holding part (1) by fitting it into the pair of screwdriver engaging parts (9) and unscrewing the male screw (8).
Remove 0) from insert (6). Formwork (3) nut
(5) Form-side member (2) and insert-side member (1) remaining inside
The cylindrical protrusion (13) of (3) is removed from the form (3) as follows. That is, a pair of fitting protrusions (21) of another mold side member (2A) are fitted into a pair of notches (20) of the remaining mold side member (2), and the remaining mold side member (2) is Screw it to the outside of (3). Then, the cylindrical protrusion (13) is
Due to the engagement between the engaging concave portion (12) and the engaging convex portion (17), both the remaining mold side member (2) and the remaining mold side member (2) are removed from the mold (3).
【0015】脱型のさいに加わる力によって、インサー
ト側部材(1) の筒状突出部(13)の基端(13a) の薄肉部が
破断し得ない場合には、型枠(3) をコンクリート(C) か
ら筒状突出部(13)の軸方向に引き離す。すると、筒状突
出部(13)は型枠側部材(2) から抜けるので、難なく脱型
することができる(図10参照)。インサート側部材
(1) はこれを手で持って雄ねじ(8) をねじ戻すことによ
りインサート(6) から取り除く。型枠側部材(2) は、筒
状取付け部(18)に+または−のねじ回しの先を入れて一
対の係合凸部(17)に係合させ、雄ねじ(16)をさらにねじ
回すことにより型枠(3) からその外側へ取り除いてもよ
いし、別の型枠側部材(2) を用いて上記と同じ要領で取
り除いてもよい。When the thin portion at the base end (13a) of the cylindrical protruding portion (13) of the insert side member (1) cannot be broken by the force applied during demolding, the form (3) is removed. Pull it away from the concrete (C) in the axial direction of the cylindrical protrusion (13). Then, the cylindrical protruding portion (13) comes out of the mold side member (2), so that it is possible to easily remove the mold (see FIG. 10). Insert side member
(1) Remove it from the insert (6) by holding it by hand and unscrewing the male screw (8). In the mold side member (2), insert a + or − screwdriver tip into the tubular mounting portion (18) to engage the pair of engaging convex portions (17), and further screw the male screw (16). By doing so, it may be removed from the formwork (3) to the outside thereof, or may be removed using another formwork side member (2) in the same manner as above.
【0016】さらに、型枠(3) が水平の場合におけるイ
ンサート保持具(H) の使用の仕方を説明する。まず、型
枠側部材(2) の雄ねじ(16)を型枠(3) のナット(5) にね
じ込んで型枠側部材(2) を型枠(3) に垂直に取付ける
(図11参照)。つぎに、インサート(6) のボルト取付
け用雌ねじ(7) にインサート側部材(1) の雄ねじ(8) を
ねじ込むことにより、インサート(6) とインサート側部
材(1) を合体させる。最後に、インサート側部材(1) の
筒状突出部(13)を型枠(3) に取付けられた型枠側部材
(2) にはめ入れることにより、インサート(6) を型枠
(3) に保持し、コンクリート(C) を打設する(図12お
よび図13参照)。Further, how to use the insert holder (H) when the formwork (3) is horizontal will be described. First, screw the male screw (16) of the form side member (2) into the nut (5) of the form (3) to attach the form side member (2) vertically to the form (3) (see Fig. 11). . Next, the insert (6) and the insert side member (1) are united by screwing the male screw (8) of the insert side member (1) into the bolt mounting female screw (7) of the insert (6). Finally, the mold side member in which the cylindrical protruding part (13) of the insert side member (1) is attached to the form frame (3)
Insert (6) into formwork by fitting it into (2)
Hold it in (3) and cast concrete (C) (see FIGS. 12 and 13).
【0017】脱型にさいし、脱型時に加わる力によっ
て、筒状突出部(13)の基端(13a) が破断し得る場合は、
この破断により脱型が可能であるし、そうでない場合
は、コンクリート成形品を真上に吊上げることによりこ
れを型枠(3) から引き離し、インサート側部材(1) の筒
状突出部(13)を型枠側部材(2) から抜いて脱型してもよ
い。その他については、型枠(3) が垂直の場合と同様で
ある。When the base end (13a) of the cylindrical protrusion (13) can be broken by the force applied during the mold release,
It is possible to remove the mold by this rupture, and if it is not, lift the concrete molded product directly above to separate it from the formwork (3) and insert it into the cylindrical projection (13) of the insert side member (1). ) May be removed from the mold side member (2) to remove the mold. Others are the same as in the case where the formwork (3) is vertical.
【0018】上記において、一対のねじ回し用係合部
(9) は、凸条形態であるが、−のねじ回しを用いるよう
な場合は、これの先端部両側がはまり込む凹条形態にし
てもよい。その数も一対に限らず3ないし4でもよく、
要するにねじ回しといずれかの部分で係合可能になって
おればよい。また、凹条係合部(12)および凸条係合部(1
7)の場合も、ともにその横断面形状はV形に限らない
し、その数も一対でなく、1つまたは3つ以上でもよ
い。要するに、凹条係合部(12)と凸条係合部(17)の係合
により、インサート側部材(1) の筒状保持部(10)と型枠
側部材(2) とが一緒に回るようになっておればよい。切
込み(20)および嵌入突起(21)の数も一対に限らず、3以
上でもよく、要するに、ナット(5) 内の残存型枠側部材
(2) を別の型枠側部材(2A)により回せればよい。In the above, a pair of screwdriver engaging portions
Although (9) has a convex strip shape, when a minus screwdriver is used, it may be a concave strip shape in which both sides of the tip end portion thereof are fitted. The number is not limited to a pair, and may be 3 or 4,
In short, it suffices if it can be engaged with the screwdriver at any part. In addition, the concave line engaging portion (12) and the convex line engaging portion (1
Also in the case of 7), the cross-sectional shape is not limited to the V shape, and the number thereof may not be a pair but may be one or three or more. In short, the engagement between the groove-shaped engaging portion (12) and the ridge-shaped engaging portion (17) causes the cylindrical holding portion (10) of the insert-side member (1) and the form-side member (2) to work together. It should be able to rotate. The number of notches (20) and fitting protrusions (21) is not limited to one, but may be three or more. In short, the remaining mold side member in the nut (5)
(2) may be rotated by another form member (2A).
【0019】[0019]
【発明の効果】請求項1の発明のコンクリート成形品へ
の埋入用インサート保持装置によれば、脱型時に加わる
力によって、インサート保持具が破断可能な場合は破断
により、脱型することができるし、成形品に埋入される
インサートの数が多くて保持具が破断し得ない場合にも
型枠に一部を残したまま型枠からインサート保持具を抜
き取ることにより、簡単に脱型することができるので便
利である。According to the insert holding device for embedding in a concrete molded product of the first aspect of the present invention, when the insert holder can be broken by the force applied at the time of demolding, it can be demolded by breaking. Even if there are many inserts embedded in the molded product and the holder cannot be broken, it is possible to easily remove the mold by removing the insert holder from the mold while leaving a part in the mold. It is convenient because it can be done.
【0020】請求項2の発明のコンクリート成形品への
埋入用インサート保持装置によれば、型枠側部材の筒状
取付け部の基端面内周側に、少なくとも一対の切込みが
設けられるとともに、筒状取付け部の先端面に、少なく
とも一対の嵌入突起が前記切込みと対応するように設け
られているから、ナット内の残存型枠側部材の切込みに
別の型枠側部材の嵌入突起をはめ入れて回すことによ
り、残存型枠側部材を型枠から容易に取り除くことがで
きる。According to the insert holding device for embedding in a concrete molded product of the invention of claim 2, at least a pair of notches are provided on the inner peripheral side of the base end surface of the cylindrical mounting portion of the mold side member, Since at least a pair of fitting protrusions are provided on the tip end surface of the cylindrical mounting portion so as to correspond to the cuts, the fitting protrusions of another mold side member are fitted to the cuts of the remaining mold side member in the nut. By inserting and turning, the remaining mold side member can be easily removed from the mold.
【0021】請求項3の発明のコンクリート成形品への
埋入用インサート保持装置によれば、型枠のナットが、
型枠の貫通孔の長さの一部にはめ入れられた雌ねじ延長
部を有するから、雌ねじ延長部の存在しない場合に較べ
てインサートの型枠における保持がインサート自体の重
量により不安定になることがなく、他方貫通孔の長さの
残りの一部には雌ねじ延長部が存在せず、この部分には
空間があるため、コンクリート落下などによる衝撃によ
り、インサート側部材の筒状突出部の基端薄肉部での不
慮の破断の生ずるおそれがない。According to the insert holding device for embedding in a concrete molded article of the third aspect of the invention, the nut of the mold is
Since the insert has an internal thread extension part that is fitted into part of the length of the through hole of the form, the weight of the insert itself makes the retention of the insert more unstable than when the internal thread extension does not exist. On the other hand, there is no internal thread extension in the remaining part of the length of the through hole, and there is a space in this part. There is no risk of accidental breakage at the thin end.
【図1】一部を切り欠いたインサート保持具におけるイ
ンサート側部材の側面図である。FIG. 1 is a side view of an insert side member in an insert holder with a part cut away.
【図2】同インサート側部材の正面図である。FIG. 2 is a front view of the insert-side member.
【図3】同インサート側部材の背面図である。FIG. 3 is a rear view of the same insert-side member.
【図4】一部を切り欠いたインサート保持具における型
枠側部材の側面図である。FIG. 4 is a side view of the mold side member in the insert holder with a part cut away.
【図5】同型枠側部材の正面図である。FIG. 5 is a front view of the mold side member.
【図6】同型枠側部材の背面図である。FIG. 6 is a rear view of the same mold side member.
【図7】インサートとその保持具を合体した状態を示す
側面図である。FIG. 7 is a side view showing a state in which the insert and its holder are combined.
【図8】インサートを垂直の型枠に保持した状態を示す
一部を切り欠いた側面図である。FIG. 8 is a partially cutaway side view showing a state in which the insert is held in a vertical mold.
【図9】脱型のさいに加わる力でインサート側部材の筒
状突出部の基端が破断することにより、脱型する状態を
示す一部を切り欠いた側面図である。FIG. 9 is a side view in which a part of the insert-side member is cut away so that the base end of the cylindrical protruding portion of the insert-side member is broken by a force applied during demolding.
【図10】型枠をコンクリートよりインサート側部材の
筒状突出部の軸方向に引き離し、筒状突出部を型枠側部
材から抜くことにより、脱型する状態を示す一部を切り
欠いた側面図である。FIG. 10 is a side view in which a part of the mold is removed from the concrete in the axial direction of the tubular projecting portion of the insert side member, and the tubular projecting portion is pulled out from the mold side member, showing a state of demolding. It is a figure.
【図11】インサート保持具における型枠側部材をその
雄ねじにより水平の型枠のナットに取付ける直前の状態
を示す断面図である。FIG. 11 is a cross-sectional view showing a state immediately before the mold side member of the insert holder is attached to the nut of the horizontal mold by its male screw.
【図12】インサートを水平の型枠に保持する直前の状
態を示す一部を切り欠いた側面図である。FIG. 12 is a partially cutaway side view showing a state immediately before holding the insert in a horizontal form.
【図13】インサートを水平の型枠に保持してコンクリ
トーを打設した状態を示す一部を切り欠いた側面図であ
る。FIG. 13 is a partially cutaway side view showing a state in which the insert is held in a horizontal mold and a concret is placed therein.
【図14】水平の型枠のナット内に残存した型枠側部材
を別の型枠側部材を用いて型枠から取り除く途上の状態
を示す垂直断面図である。FIG. 14 is a vertical cross-sectional view showing a state in which the form-side member remaining in the nut of the horizontal form is being removed from the form using another form-side member.
(1) :インサート側部材 (2) :型枠側部材 (3) :型枠 (4) :貫通孔 (5) :ナット (5a):雌ねじ延長部 (6) :インサート (7) :インサートのボルト取付け用雌ねじ (8) :インサート側部材の雄ねじ (9) :ねじ回し用係合部 (10):筒状保持部 (11):フランジ (12):係合凹条 (13):筒状突出部 (13a) :筒状突出部の基端 (16):型枠側部材の雄ねじ (17):係合凸条 (18):筒状取付け部 (20):切込み (21):嵌入突起 (H) :インサート保持具 (1): Insert side member (2): Formwork side member (3): Formwork (4): Through hole (5): Nut (5a): Female thread extension (6): Insert (7): Female thread for bolt mounting of insert (8): Male thread of insert side member (9): Engagement part for screwdriver (10): Cylindrical holding part (11): Flange (12): Engagement groove (13): Cylindrical protrusion (13a): Base end of cylindrical protrusion (16): Male thread on the formwork side member (17): Engagement ridge (18): Cylindrical mounting part (20): Notch (21): Fitting protrusion (H): Insert holder
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成11年7月1日(1999.7.1)[Submission date] July 1, 1999 (1999.7.1)
【手続補正1】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【書類名】 明細書[Document name] Statement
【発明の名称】 コンクリート成形品への埋入用インサ
ート保持装置Title: Insert holding device for embedding in a concrete molded product
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【0001】[0001]
【発明の属する技術分野】本発明は、コンクリート成形
品への埋入用インサート保持装置に関する。TECHNICAL FIELD The present invention relates to an insert holding device for embedding in a concrete molded product.
【0002】[0002]
【従来の技術】コンクリート成形品にボルト取付け用雌
ねじ付きインサートを、その成形時に埋入するために、
インサートを型枠に保持させるインサートの保持装置は
従来より知られているが、なかでも脱型時に保持具をコ
ンクリート成形品に埋入せられたインサートからいちい
ち取り外す作業を不要にしたものとして、つぎのような
インサートの保持装置が提案されている。すなわち、こ
の保持装置はインサートの雌ねじに合致する雄ねじを有
する棒状保持部と、棒状保持部に延長状に形成せられか
つ雄ねじを有する棒状取付け部とよりなるインサート保
持具と、所定箇所にあけられかつ棒状取付け部の雄ねじ
がねじ込まれる型枠のねじ孔とを備えており、インサー
ト保持具の保持部と取付け部の境には、脱型時に加わる
力によって破断するように設けられた薄肉部が形成せら
れており、取付け部から保持部にまたがってねじ回し係
合孔があけられているものである。2. Description of the Related Art In order to embed a female threaded insert for mounting bolts in a concrete molded product at the time of molding,
The insert holding device for holding the insert in the mold has been known in the past, but among them, it is not necessary to remove the holder from the insert embedded in the concrete molded product at the time of demolding. A holding device for such an insert has been proposed. That is, this holding device is provided with an insert holder including a rod-shaped holding portion having a male screw matching the female screw of the insert, and an rod-shaped mounting portion having an external screw formed on the rod-shaped holding portion in an extended shape, and opened at a predetermined position. And a screw hole of the form into which the male screw of the rod-shaped mounting portion is screwed, and a thin-walled portion provided at the boundary between the holding portion and the mounting portion of the insert holder so as to be broken by the force applied during demolding. It is formed, and a screwdriver engaging hole is opened from the mounting portion to the holding portion.
【0003】[0003]
【発明が解決しようとする課題】従来の上記インサート
保持装置では、成形品に埋入されるインサートの数が多
くなると、脱型しようとしてもインサート保持具の薄肉
部で破断せず、脱型が不可能となるという問題がある。In the conventional insert holding device described above, when the number of inserts embedded in the molded product is large, even if an attempt is made to release the mold, the thin portion of the insert holder is not broken and the mold is released. There is a problem that it becomes impossible.
【0004】本発明の目的は、脱型時に加わる力によっ
てインサート保持具が破断可能な場合は破断により脱型
し、さらに破断し得ない場合にも型枠に一部を残したま
ま型枠からインサート保持具を抜き取ることにより脱型
を可能とするコンクリート成形品への埋入用インサート
保持装置を提供するにある。The object of the present invention is to remove the insert holder from the mold when the insert holder can be broken by the force applied when the mold is removed, and even when the insert holder cannot be further broken, the insert holder is left partly in the mold to leave the mold. (EN) It is an object to provide an insert holding device for embedding in a concrete molded product, which enables demolding by pulling out the insert holding tool.
【0005】[0005]
【課題を解決するための手段】請求項1の発明によるコ
ンクリート成形品への埋入用インサート保持装置は、イ
ンサート側部材および型枠側部材の2部材よりなるイン
サート保持具と、型枠の所定箇所にあけられた貫通孔の
外側周縁部に固着せられたナットとを備えており、イン
サート保持具のインサート側部材は、インサートのボル
ト取付け用雌ねじにねじ込まれる雄ねじおよび少なくと
も一対のねじ回し用係合部を有する筒状保持部と、筒状
保持部の基端に設けられているフランジと、フランジを
介して筒状保持部の反対側に突出しかつ外周面長さ方向
にのびた係合凹条を有する筒状突出部とよりなり、筒状
突出部の基端は脱型時に加わる力により破断するよう
に、筒状突出部の他の部分より薄肉となされており、イ
ンサート保持具の型枠側部材は、型枠のナットにねじ込
まれる雄ねじおよび内周面長さ方向にのびた係合凸条を
有しかつインサート側部材の筒状突出部の外周面と内周
面が合致する筒状取付け部よりなり、脱型のさいに加わ
る力によって、インサート側部材の筒状突出部の基端の
薄肉部が破断し得ない場合には、型枠をコンクリートか
ら筒状突出部の軸方向に引き離すことにより、筒状突出
部が型枠側部材から抜けるようになされているものであ
る。According to a first aspect of the present invention, there is provided an insert holding device for embedding in a concrete molded product, which is an insert holding tool including two members, an insert side member and a form side member, and a predetermined form. The insert-side member of the insert holder is a male screw screwed into the female screw for mounting bolts of the insert, and at least a pair of screwdrivers. A tubular holding portion having a mating portion, a flange provided at the base end of the tubular holding portion, and an engaging groove extending in the longitudinal direction of the outer peripheral surface and protruding to the opposite side of the tubular holding portion through the flange. And a base end of the tubular projection is made thinner than the other parts of the tubular projection so that the base end of the tubular projection is broken by the force applied at the time of demolding. The side member has a male screw to be screwed into the nut of the formwork and an engaging ridge extending in the lengthwise direction of the inner peripheral surface, and has a cylindrical mounting in which the outer peripheral surface and the inner peripheral surface of the cylindrical protruding portion of the insert side member match. Ri name than parts, Kuwawa to Sai of removal from the mold
Force of the insert-side member
If the thin section cannot be broken, place the formwork in concrete.
The cylindrical protrusion is pulled apart in the axial direction.
The part is designed to be removed from the mold side member .
【0006】請求項2の発明は、請求項1の発明による
コンクリート成形品への埋入用インサート保持装置にお
いて、型枠側部材の筒状取付け部の基端面内周側に、少
なくとも一対の切込みが設けられるとともに、筒状取付
け部の先端面に、少なくとも一対の嵌入突起が前記切込
みと対応するように設けられているものである。According to a second aspect of the present invention, in the insert holding device for embedding in a concrete molded article according to the first aspect of the invention, at least a pair of notches are formed on the inner peripheral side of the base end surface of the tubular mounting portion of the mold side member. And at least a pair of fitting projections are provided on the tip end surface of the cylindrical mounting portion so as to correspond to the cuts.
【0007】請求項3の発明は、請求項1の発明による
コンクリート成形品への埋入用インサート保持装置にお
いて、型枠のナットが、型枠の貫通孔の長さの一部には
め入れられた雌ねじ延長部を有するものである。According to a third aspect of the present invention, in the insert holding device for embedding in a concrete molded article according to the first aspect of the invention, the nut of the mold is fitted in a part of the length of the through hole of the mold. It has an internal thread extension.
【0008】[0008]
【発明の実施の形態】本発明の実施の形態を、以下図面
を参照して説明する。図7に鎖線で示すコンクリート成
形品への埋入用インサート保持具(H) は、合成樹脂製で
あって、インサート側部材(1) および型枠側部材(2) の
2部材よりなる。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. An insert holder (H) for embedding in a concrete molded product shown by a chain line in FIG. 7 is made of a synthetic resin and is composed of two members, an insert side member (1) and a form side member (2).
【0009】図8〜図14に示す型枠(3) の所定箇所に
あけられた貫通孔(4) の外側周縁部に溶接せられたナッ
ト(5) は、型枠(3) の貫通孔(4) の長さの一部にはめ入
れられた雌ねじ延長部(5a)を有する。The nut (5) welded to the outer peripheral edge of the through hole (4) formed at a predetermined position of the form (3) shown in FIGS. 8 to 14 is a through hole of the form (3). It has an internal thread extension (5a) fitted in a part of the length of (4).
【0010】インサート側部材(1) は、図1〜図3に示
されているように、インサート(6)のボルト取付け用雌
ねじ(7) (図7参照)にねじ込まれる雄ねじ(8) および
横断面V形凸条で内周面長さ方向にのびた一対のねじ回
し用係合部(9) を有する筒状保持部(10)と、筒状保持部
(10)の基端に設けられているフランジ(11)と、フランジ
(11)を介して筒状保持部(10)の反対側に突出しかつ外周
面長さ方向にのびた横断面V形の一対の係合凹条(12)を
有する筒状突出部(13)とよりなる。筒状突出部(13)の係
合凹条(12)は、筒状保持部(10)におけるねじ回し用係合
部(9) の延長線上に存在する。筒状突出部(13)の外径
は、筒状保持部(12)の内径にほぼ等しく、筒状突出部(1
3)の肉厚は、筒状保持部(10)の肉厚よりも薄い。そし
て、筒状保持部(10)と筒状突出部(13)の境界を介して前
者の一端内周面から後者の一端内周面にむけて先細とな
ったテーパ部(14)が形成せられている。筒状突出部(13)
の基端(13a) は、脱型時に加わる力により破断するよう
に、テーパ部(14)の存在で筒状突出部(13)の他の部分よ
り薄肉となされている(図1参照)。筒状突出部(13)の
先端には、外周面が横断面円弧状の抜止め膨出部(15)が
設けられている。また、フランジ(11)は、コンクリート
ののろがコンクリート打設時に雄ねじ(8) と雌ねじ(7)
のねじ合わせ部分に入り込むのを防ぎ、かつスプリング
・ワッシャと同様の作用をさせるために、雄ねじ(8) に
向かって浅い椀形に形成せられている。As shown in FIGS. 1 to 3, the insert side member (1) includes a male screw (8) screwed into a female screw (7) (see FIG. 7) for mounting a bolt of the insert (6) and a transverse screw. A cylindrical holding part (10) having a pair of screwdriver engaging parts (9) extending in the lengthwise direction of the inner peripheral surface of a V-shaped convex strip, and a cylindrical holding part.
Flange (11) provided at the base end of (10)
A tubular projection (13) having a pair of engaging recesses (12) having a V-shaped cross section and projecting to the opposite side of the tubular holding part (10) via the (11) and extending in the outer peripheral surface length direction; Consists of. The engagement groove (12) of the tubular protrusion (13) is present on an extension line of the screwdriver engagement portion (9) of the tubular holding portion (10). The outer diameter of the cylindrical protruding portion (13) is approximately equal to the inner diameter of the cylindrical holding portion (12), and the cylindrical protruding portion (1
The wall thickness of 3) is smaller than the wall thickness of the cylindrical holding portion (10). Then, a tapered portion (14) tapering from the inner peripheral surface of the former one end to the inner peripheral surface of the latter one is formed through the boundary between the cylindrical holding portion (10) and the cylindrical protruding portion (13). Has been. Cylindrical protrusion (13)
The base end (13a) of this is made thinner than the other parts of the cylindrical protrusion (13) due to the presence of the tapered portion (14) so as to be broken by the force applied at the time of demolding (see FIG. 1). At the tip of the cylindrical protruding portion (13), a retaining bulge portion (15) whose outer peripheral surface is arcuate in cross section is provided. Also, the flange (11) has a male thread (8) and a female thread (7) when the concrete lathe is poured into the concrete.
It has a shallow bowl shape towards the male thread (8) to prevent it from entering the threaded portion of the and to act like a spring washer.
【0011】インサート保持具(H) の型枠側部材(2)
は、図4〜図6に示されているように、型枠(3) のナッ
ト(5) にねじ込まれる雄ねじ(16)および内周面長さ方向
にのびた横断面V形の一対の係合凸条(17)を有しかつイ
ンサート側部材(1) の筒状突出部(13)と内周面が合致す
る筒状取付け部(18)よりなる。なお、型枠側部材(2)
は、型枠(3) に取り付けられた状態で、図示のようにナ
ット(5) 内に収まる大きさとすることが望ましい。型枠
(3) から型枠側部材(2) が突出する大きさであると、何
かがこれに当たって破損するおそれがあるからである。
筒状取付け部(18)の係合凸条(17)は、筒状突出部(13)の
係合凹条(12)に合致する。筒状取付け部(18)の先端内周
面には、インサート側部材(1) における筒状突出部(13)
の抜止め膨出部(15)が引掛かる段部(19)が形成せられて
いる。抜止め膨出部(15)の外径は、インサート保持具
(H) が若干弾性を有する合成樹脂製であることにより、
筒状取付け部(18)を通過して段部(19)に達しうるように
筒状取付け部(18)の内径より僅かに大きい程度となされ
ている。そして、脱型のさいに加わる力によって、イン
サート側部材(1) の筒状突出部(13)の基端(13a) の薄肉
部が破断し得ない場合には、型枠(3) をコンクリート
(C) から筒状突出部(13)の軸方向に引き離すことによ
り、筒状突出部(13)は型枠側部材(2) から抜けるように
なされている。 Form-side member (2) of the insert holder (H)
As shown in FIGS. 4 to 6, a male screw (16) screwed into the nut (5) of the form (3) and a pair of engagements having a V-shaped cross section extending in the lengthwise direction of the inner peripheral surface. It is composed of a tubular mounting portion (18) having a ridge (17) and having an inner peripheral surface matching the tubular protruding portion (13) of the insert side member (1). The mold side member (2)
It is desirable to have a size that fits inside the nut (5) as shown in the figure when it is attached to the formwork (3). Formwork
This is because if the mold side member (2) has a size that protrudes from (3), something may hit it and be damaged.
The engagement ridge (17) of the tubular mounting portion (18) matches the engagement ridge (12) of the tubular protrusion (13). On the inner peripheral surface of the tip of the cylindrical mounting part (18), the cylindrical protruding part (13) of the insert side member (1)
A step portion (19) is formed on which the retaining bulge portion (15) is hooked. The outer diameter of the retaining bulge (15) is
Since (H) is made of a synthetic resin with some elasticity,
The inner diameter of the tubular mounting portion (18) is slightly larger than the inner diameter of the tubular mounting portion (18) so that the stepped portion (19) can be reached by passing through the tubular mounting portion (18). Then, the force applied during demolding
Thin wall at the base end (13a) of the cylindrical protrusion (13) of the sat member (1)
If the parts cannot be broken, place the formwork (3) in concrete.
By pulling it away from (C) in the axial direction of the cylindrical protrusion (13).
The cylindrical protrusion (13) so that it can be removed from the mold side member (2).
Has been done.
【0012】また、筒状取付け部(18)の基端面内周側
に、一対の切込み(20)が設けられるとともに、筒状取付
け部(18)の先端面に、一対の嵌入突起(21)が前記切込み
(20)と対応するように設けられている。[0012] Also, the base end surface inner circumferential side of the cylindrical mounting portion (18), a pair of notches (20) are provided, on the front end surface of the cylindrical mounting portion (18), a pair of fitting protrusions (21 ) Is the notch
It is provided to correspond to (20).
【0013】型枠(3) が垂直の場合におけるインサート
保持具(H) の使用の仕方を説明する。まず、インサート
側部材(1) の筒状突出部(13)を型枠側部材(2) の筒状取
付け部(18)にはめ入れることにより、両部材(1)(2)を合
体させる(図7参照)。つぎに、型枠側部材(2) を手で
持ってインサート側部材(1) の雄ねじ(8) をインサート
(6) の雌ねじ(7) にねじ込んでから、インサート(6) を
持って型枠側部材(2)の雄ねじ(16)を型枠(3) の内側か
らその貫通孔(4) を通して雌ねじ延長部(5a)を有するナ
ット(5) にねじ込むことにより、インサート(6) を型枠
(3) に保持する(図8参照)。A method of using the insert holder (H) when the formwork (3) is vertical will be described. First, both members (1) and (2) are united by fitting the cylindrical protruding portion (13) of the insert side member (1) into the cylindrical mounting portion (18) of the mold side member (2) ( (See FIG. 7) . Next, hold the mold side member (2) by hand and insert the male screw (8) of the insert side member (1).
After screwing into the female screw (7) of (6), hold the insert (6) and extend the male screw (16) of the mold side member (2) from the inside of the mold (3) through its through hole (4). Insert the insert (6) into the formwork by screwing it into the nut (5) with the part (5a).
Hold at (3) (see Figure 8).
【0014】この場合、ナット(5) が雌ねじ延長部(5a)
のない通常のものであると、型枠(3) の厚さ分型枠側部
材(2) の雄ねじ(16)が遊ぶことになるため、インサート
(6)自体の重量により、型枠(3) におけるインサート(6)
の保持が不安定となるが、上記にように、型枠(3) の
ナット(5) が、型枠(5) の貫通孔(4) の長さの一部には
め入れられた雌ねじ延長部(5a)を有するから、不安定に
なることがない。他方、雌ねじ延長部が貫通孔(4) の全
長にわたるものであるとすると、コンクリートの落下な
どによる衝撃を受けた場合、インサート側部材(1) にお
ける筒状突出部(13)の基端(13a) 薄肉部での不慮の破断
のおそれがあるが、貫通孔(4) の長さの残りの一部には
雌ねじ延長部(5a)が存在せず、この部分には空間がある
ため、このような心配もない。通常、鉄板製型枠(3) の
厚さは4.5mm程度、雌ねじ延長部(5a)の長さは2〜
2.5mm程度である。In this case, the nut (5) is attached to the female screw extension (5a).
If it is a normal type without insert, the male screw (16) of the form side member (2) will play because of the thickness of the form (3), so the insert
(6) Insert (6) in formwork (3) due to its own weight
However, as described above, the nut (5) of the formwork (3) is inserted into a part of the length of the through hole (4) of the formwork (5) and the female screw extension is inserted. Since it has the part (5a), it does not become unstable. On the other hand, assuming that the female screw extension extends over the entire length of the through hole (4), when the impact from dropping of concrete is received, the base end (13a) of the cylindrical protrusion (13) of the insert side member (1) is ) Although there is a risk of accidental breakage in the thin portion, there is no internal thread extension (5a) in the remaining part of the length of the through hole (4), and there is space in this part, so this There is no such concern. Normally, the thickness of the iron plate formwork (3) is about 4.5 mm, and the length of the female screw extension (5a) is 2 to 5.
It is about 2.5 mm.
【0015】インサート(6) を型枠(3) に保持してから
コンクリート(C) を打設して硬化後に脱型するのである
が、脱型時に加わる力によって、筒状突出部(13)の基端
(13a) の薄肉部が破断する場合は、この破断により脱型
が可能となる(図9参照)。破断によりインサート(6)
に残った筒状保持部(10)は、コンクリート成形品にボル
トが取付けられるまで、インサート(6) の雌ねじ(7) の
保護用としてそのままおいておかれる。そして、ボルト
取付け時、+または−のねじ回しの先を筒状保持部(10)
にはめ入れ、これを一対のねじ回し用係合部(9) に係合
させ、雄ねじ(8) をねじ戻すことにより、筒状保持部(1
0)をインサート(6) から取り除く。型枠(3) のナット
(5) 内に残った型枠側部材(2) とインサート側部材(1)
の筒状突出部(13)は、つぎのようにして型枠(3) から取
り除かれる。すなわち、別の型枠側部材(2A)の一対の嵌
入突起(21)を残存型枠側部材(2) の一対の切込み(20)に
はめ入れ、残存型枠側部材(2) が型枠(3) の外側に抜け
るようにねじ回していく。すると、筒状突出部(13)は、
係合凹部(12)と係合凸部(17)との係合により、残存型枠
側部材(2) もろとも型枠(3) より取り除かれる。The insert (6) is held on the mold (3) and then the concrete (C) is placed and hardened to be removed from the mold. However, due to the force applied during the mold removal, the cylindrical protrusion (13) The base of
When the thin portion of (13a) breaks, this break allows demolding (see FIG. 9). Insert by breaking (6)
The tubular holding part (10) remaining in the above is left as it is for protecting the female screw (7) of the insert (6) until the bolt is attached to the concrete molded product. Then, when installing the bolt, the tip of the + or-screwdriver should be the cylindrical holding part (10).
The cylindrical holding part (1) by fitting it into the pair of screwdriver engaging parts (9) and unscrewing the male screw (8).
Remove 0) from insert (6). Formwork (3) nut
(5) Form-side member (2) and insert-side member (1) remaining inside
The cylindrical protrusion (13) of (3) is removed from the form (3) as follows. That is, a pair of fitting protrusions (21) of another mold side member (2A) are fitted into a pair of notches (20) of the remaining mold side member (2), and the remaining mold side member (2) is Screw it to the outside of (3). Then, the cylindrical protrusion (13) is
Due to the engagement between the engaging concave portion (12) and the engaging convex portion (17), both the remaining mold side member (2) and the remaining mold side member (2) are removed from the mold (3).
【0016】脱型のさいに加わる力によって、インサー
ト側部材(1) の筒状突出部(13)の基端(13a) の薄肉部が
破断し得ない場合には、型枠(3) をコンクリート(C) か
ら筒状突出部(13)の軸方向に引き離すことにより、筒状
突出部(13)は型枠側部材(2)から抜けるようになされて
いるので、難なく脱型することができる(図10参
照)。インサート側部材(1) はこれを手で持って雄ねじ
(8) をねじ戻すことによりインサート(6) から取り除
く。型枠側部材(2) は、筒状取付け部(18)に+または−
のねじ回しの先を入れて一対の係合凸部(17)に係合さ
せ、雄ねじ(16)をさらにねじ回すことにより型枠(3) か
らその外側へ取り除いてもよいし、別の型枠側部材(2)
を用いて上記と同じ要領で取り除いてもよい。If the thin portion at the base end (13a) of the cylindrical protrusion (13) of the insert side member (1) cannot be broken by the force applied during the demolding, the form (3) is removed. By pulling it away from the concrete (C) in the axial direction of the tubular projecting part (13) , the tubular projecting part (13) can be removed from the mold side member (2).
Because there can be without difficulty demolded (see FIG. 10). The insert side member (1) must be held by hand
Remove (8) from insert (6) by unscrewing. Formwork side member (2) is + or-on the cylindrical mounting part (18).
It may be removed from the mold (3) to the outside by inserting the tip of the screwdriver of (1) into engagement with the pair of engaging projections (17) and further screwing the male screw (16), or another mold. Frame side member (2)
May be removed in the same manner as above.
【0017】さらに、型枠(3) が水平の場合におけるイ
ンサート保持具(H) の使用の仕方を説明する。まず、型
枠側部材(2) の雄ねじ(16)を型枠(3) のナット(5) にね
じ込んで型枠側部材(2) を型枠(3) に垂直に取付ける
(図11参照)。つぎに、インサート(6) のボルト取付
け用雌ねじ(7) にインサート側部材(1) の雄ねじ(8) を
ねじ込むことにより、インサート(6) とインサート側部
材(1) を合体させる。最後に、インサート側部材(1) の
筒状突出部(13)を型枠(3) に取付けられた型枠側部材
(2) にはめ入れることにより、インサート(6) を型枠
(3) に保持し、コンクリート(C) を打設する(図12お
よび図13参照)。Further, how to use the insert holder (H) when the formwork (3) is horizontal will be described. First, screw the male screw (16) of the form side member (2) into the nut (5) of the form (3) to attach the form side member (2) vertically to the form (3) (see Fig. 11). . Next, the insert (6) and the insert side member (1) are united by screwing the male screw (8) of the insert side member (1) into the bolt mounting female screw (7) of the insert (6). Finally, the mold side member in which the cylindrical protruding part (13) of the insert side member (1) is attached to the form frame (3)
Insert (6) into formwork by fitting it into (2)
Hold it in (3) and cast concrete (C) (see FIGS. 12 and 13).
【0018】脱型にさいし、脱型時に加わる力によっ
て、筒状突出部(13)の基端(13a) が破断し得る場合は、
この破断により脱型が可能であるし、そうでない場合
は、コンクリート成形品を真上に吊上げることによりこ
れを型枠(3) から引き離し、換言すれば、相対的に、型
枠(3) をコンクリート(C) から筒状突出部(13)の軸方向
に引き離すことにより、インサート側部材(1) の筒状突
出部(13)を型枠側部材(2)から抜いて脱型してもよい。
その他については、型枠(3) が垂直の場合と同様であ
る。When the base end (13a) of the cylindrical protrusion (13) can be broken by the force applied during the mold release,
It is possible to remove the mold by this breaking, or if it is not, lift the concrete molded product directly above to separate it from the formwork (3), in other words, relatively,
Axes frame (3) from concrete (C) to tubular protrusion (13)
Alternatively, the cylindrical protrusion (13) of the insert-side member (1) may be removed from the mold-side member (2) by pulling it away.
Others are the same as in the case where the formwork (3) is vertical.
【0019】上記において、一対のねじ回し用係合部
(9) は、凸条形態であるが、−のねじ回しを用いるよう
な場合は、これの先端部両側がはまり込む凹条形態にし
てもよい。その数も一対に限らず3ないし4でもよく、
要するにねじ回しといずれかの部分で係合可能になって
おればよい。また、凹条係合部(12)および凸条係合部(1
7)の場合も、ともにその横断面形状はV形に限らない
し、その数も一対でなく、1つまたは3つ以上でもよ
い。要するに、凹条係合部(12)と凸条係合部(17)の係合
により、インサート側部材(1) の筒状保持部(10)と型枠
側部材(2) とが一緒に回るようになっておればよい。切
込み(20)および嵌入突起(21)の数も一対に限らず、3以
上でもよく、要するに、ナット(5) 内の残存型枠側部材
(2) を別の型枠側部材(2A)により回せればよい。In the above, a pair of screwdriver engaging portions
Although (9) has a convex strip shape, when a minus screwdriver is used, it may be a concave strip shape in which both sides of the tip end portion thereof are fitted. The number is not limited to a pair, and may be 3 or 4,
In short, it suffices if it can be engaged with the screwdriver at any part. In addition, the concave line engaging portion (12) and the convex line engaging portion (1
Also in the case of 7), the cross-sectional shape is not limited to the V shape, and the number thereof may not be a pair but may be one or three or more. In short, the engagement between the groove-shaped engaging portion (12) and the ridge-shaped engaging portion (17) causes the cylindrical holding portion (10) of the insert-side member (1) and the form-side member (2) to work together. It should be able to rotate. The number of notches (20) and fitting protrusions (21) is not limited to one, but may be three or more. In short, the remaining mold side member in the nut (5)
(2) may be rotated by another form member (2A).
【0020】[0020]
【発明の効果】請求項1の発明のコンクリート成形品へ
の埋入用インサート保持装置によれば、脱型時に加わる
力によって、インサート保持具が破断可能な場合は破断
により、脱型することができるし、成形品に埋入される
インサートの数が多くて保持具が破断し得ない場合にも
型枠に一部を残したまま型枠からインサート保持具を抜
き取ることにより、簡単に脱型することができるので便
利である。According to the insert holding device for embedding in a concrete molded product of the first aspect of the present invention, when the insert holder can be broken by the force applied at the time of demolding, it can be demolded by breaking. Even if there are many inserts embedded in the molded product and the holder cannot be broken, it is possible to easily remove the mold by removing the insert holder from the mold while leaving a part in the mold. It is convenient because it can be done.
【0021】請求項2の発明のコンクリート成形品への
埋入用インサート保持装置によれば、型枠側部材の筒状
取付け部の基端面内周側に、少なくとも一対の切込みが
設けられるとともに、筒状取付け部の先端面に、少なく
とも一対の嵌入突起が前記切込みと対応するように設け
られているから、ナット内の残存型枠側部材の切込みに
別の型枠側部材の嵌入突起をはめ入れて回すことによ
り、残存型枠側部材を型枠から容易に取り除くことがで
きる。According to the insert holding device for embedding in a concrete molded product of the invention of claim 2, at least a pair of notches are provided on the inner peripheral side of the base end surface of the tubular mounting portion of the mold side member, Since at least a pair of fitting protrusions are provided on the tip end surface of the cylindrical mounting portion so as to correspond to the cuts, the fitting protrusions of another mold side member are fitted to the cuts of the remaining mold side member in the nut. By inserting and turning, the remaining mold side member can be easily removed from the mold.
【0022】請求項3の発明のコンクリート成形品への
埋入用インサート保持装置によれば、型枠のナットが、
型枠の貫通孔の長さの一部にはめ入れられた雌ねじ延長
部を有するから、雌ねじ延長部の存在しない場合に較べ
てインサートの型枠における保持がインサート自体の重
量により不安定になることがなく、他方貫通孔の長さの
残りの一部には雌ねじ延長部が存在せず、この部分には
空間があるため、コンクリート落下などによる衝撃によ
り、インサート側部材の筒状突出部の基端薄肉部での不
慮の破断の生ずるおそれがない。According to the insert holding device for embedding in a concrete molded article of the third aspect of the invention, the nut of the form is
Since the insert has an internal thread extension part that is fitted into part of the length of the through hole of the form, the weight of the insert itself makes the retention of the insert more unstable than when the internal thread extension does not exist. On the other hand, there is no internal thread extension in the remaining part of the length of the through hole, and there is a space in this part. There is no risk of accidental breakage at the thin end.
【図面の簡単な説明】[Brief description of drawings]
【図1】一部を切り欠いたインサート保持具におけるイ
ンサート側部材の側面図である。FIG. 1 is a side view of an insert side member in an insert holder with a part cut away.
【図2】同インサート側部材の正面図である。FIG. 2 is a front view of the insert-side member.
【図3】同インサート側部材の背面図である。FIG. 3 is a rear view of the same insert-side member.
【図4】一部を切り欠いたインサート保持具における型
枠側部材の側面図である。FIG. 4 is a side view of the mold side member in the insert holder with a part cut away.
【図5】同型枠側部材の正面図である。FIG. 5 is a front view of the mold side member.
【図6】同型枠側部材の背面図である。FIG. 6 is a rear view of the same mold side member.
【図7】インサートとその保持具を合体した状態を示す
側面図である。FIG. 7 is a side view showing a state in which the insert and its holder are combined.
【図8】インサートを垂直の型枠に保持した状態を示す
一部を切り欠いた側面図である。FIG. 8 is a partially cutaway side view showing a state in which the insert is held in a vertical mold.
【図9】脱型のさいに加わる力でインサート側部材の筒
状突出部の基端が破断することにより、脱型する状態を
示す一部を切り欠いた側面図である。FIG. 9 is a side view in which a part of the insert-side member is cut away so that the base end of the cylindrical protruding portion of the insert-side member is broken by a force applied during demolding.
【図10】型枠をコンクリートよりインサート側部材の
筒状突出部の軸方向に引き離し、筒状突出部を型枠側部
材から抜くことにより、脱型する状態を示す一部を切り
欠いた側面図である。FIG. 10 is a side view in which a part of the mold is removed from the concrete in the axial direction of the tubular projecting portion of the insert side member, and the tubular projecting portion is pulled out from the mold side member, showing a state of demolding. It is a figure.
【図11】インサート保持具における型枠側部材をその
雄ねじにより水平の型枠のナットに取付ける直前の状態
を示す断面図である。FIG. 11 is a cross-sectional view showing a state immediately before the mold side member of the insert holder is attached to the nut of the horizontal mold by its male screw.
【図12】インサートを水平の型枠に保持する直前の状
態を示す一部を切り欠いた側面図である。FIG. 12 is a partially cutaway side view showing a state immediately before holding the insert in a horizontal form.
【図13】インサートを水平の型枠に保持してコンクリ
トーを打設した状態を示す一部を切り欠いた側面図であ
る。FIG. 13 is a partially cutaway side view showing a state in which the insert is held in a horizontal mold and a concret is placed therein.
【図14】水平の型枠のナット内に残存した型枠側部材
を別の型枠側部材を用いて型枠から取り除く途上の状態
を示す垂直断面図である。FIG. 14 is a vertical cross-sectional view showing a state in which the form-side member remaining in the nut of the horizontal form is being removed from the form using another form-side member.
【符号の説明】 (1) :インサート側部材 (2) :型枠側部材 (3) :型枠 (4) :貫通孔 (5) :ナット (5a):雌ねじ延長部 (6) :インサート (7) :インサートのボルト取付け用雌ねじ (8) :インサート側部材の雄ねじ (9) :ねじ回し用係合部 (10):筒状保持部 (11):フランジ (12):係合凹条 (13):筒状突出部 (13a) :筒状突出部の基端 (16):型枠側部材の雄ねじ (17):係合凸条 (18):筒状取付け部 (20):切込み (21):嵌入突起 (H) :インサート保持具[Explanation of symbols] (1): Insert side member (2): Formwork side member (3): Formwork (4): Through hole (5): Nut (5a): Female thread extension (6): Insert (7): Female thread for bolt mounting of insert (8): Male thread of insert side member (9): Engagement part for screwdriver (10): Cylindrical holding part (11): Flange (12): Engagement groove (13): Cylindrical protrusion (13a): Base end of cylindrical protrusion (16): Male thread on the formwork side member (17): Engagement ridge (18): Cylindrical mounting part (20): Notch (21): Fitting protrusion (H): Insert holder
Claims (3)
部材よりなるインサート保持具と、型枠の所定箇所にあ
けられた貫通孔の外側周縁部に固着せられたナットとを
備えており、インサート保持具のインサート側部材は、
インサートのボルト取付け用雌ねじにねじ込まれる雄ね
じおよび少なくとも一対のねじ回し用係合部を有する筒
状保持部と、筒状保持部の基端に設けられているフラン
ジと、フランジを介して筒状保持部の反対側に突出しか
つ外周面長さ方向にのびた係合凹条を有する筒状突出部
とよりなり、筒状突出部の基端は脱型時に加わる力によ
り破断するように、筒状突出部の他の部分より薄肉とな
されており、インサート保持具の型枠側部材は、型枠の
ナットにねじ込まれる雄ねじおよび内周面長さ方向にの
びた係合凸条を有しかつインサート側部材の筒状突出部
の外周面と内周面が合致する筒状取付け部よりなるコン
クリート成形品への埋入用インサート保持装置。1. An insert side member and a mold side member 2
An insert holder made of a member, and a nut fixed to the outer peripheral edge portion of the through hole opened at a predetermined position of the mold are provided, and the insert-side member of the insert holder is
A cylindrical holding portion having a male screw that is screwed into the bolt mounting female screw of the insert and at least a pair of screwing engagement portions, a flange provided at the base end of the cylindrical holding portion, and a cylindrical holding through the flange And a cylindrical protrusion having an engaging groove extending in the lengthwise direction of the outer peripheral surface, and the base end of the cylindrical protrusion is ruptured by a force applied during demolding. The insert-side member has a mold-side member that is thinner than the other parts of the insert, and has a male screw screwed into the nut of the mold and an engaging ridge extending in the inner peripheral surface length direction. Insert holding device for embedding in a concrete molded product, which comprises a cylindrical mounting portion in which the outer peripheral surface and the inner peripheral surface of the cylindrical projecting portion of the above are matched.
側に、少なくとも一対の切込みが設けられるとともに、
筒状取付け部の先端面に、少なくとも一対の嵌入突起が
前記切込みと対応するように設けられている請求項1記
載のコンクリート成形品への埋入用インサート保持装
置。2. At least a pair of cuts are provided on the inner peripheral side of the base end surface of the tubular mounting portion of the mold side member, and
The insert holding device for embedding in a concrete molded article according to claim 1, wherein at least a pair of fitting protrusions are provided on a front end surface of the tubular mounting portion so as to correspond to the cuts.
一部にはめ入れられた雌ねじ延長部を有する請求項1記
載のコンクリート成形品への埋入用インサート保持装
置。3. The insert holding device for embedding in a concrete molded article according to claim 1, wherein the nut of the formwork has an internal thread extension part fitted in a part of the length of the through hole of the formwork.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10229073A JP3122790B2 (en) | 1998-08-13 | 1998-08-13 | Insert holding device for embedding in concrete moldings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10229073A JP3122790B2 (en) | 1998-08-13 | 1998-08-13 | Insert holding device for embedding in concrete moldings |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000061920A true JP2000061920A (en) | 2000-02-29 |
JP3122790B2 JP3122790B2 (en) | 2001-01-09 |
Family
ID=16886325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10229073A Expired - Fee Related JP3122790B2 (en) | 1998-08-13 | 1998-08-13 | Insert holding device for embedding in concrete moldings |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3122790B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110948652A (en) * | 2018-09-26 | 2020-04-03 | 湖北荣协电力器材有限公司 | Pier head steel bar type perforated template |
-
1998
- 1998-08-13 JP JP10229073A patent/JP3122790B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110948652A (en) * | 2018-09-26 | 2020-04-03 | 湖北荣协电力器材有限公司 | Pier head steel bar type perforated template |
Also Published As
Publication number | Publication date |
---|---|
JP3122790B2 (en) | 2001-01-09 |
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