JP5060148B2 - Screw shaft fixing structure - Google Patents

Screw shaft fixing structure Download PDF

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JP5060148B2
JP5060148B2 JP2007095959A JP2007095959A JP5060148B2 JP 5060148 B2 JP5060148 B2 JP 5060148B2 JP 2007095959 A JP2007095959 A JP 2007095959A JP 2007095959 A JP2007095959 A JP 2007095959A JP 5060148 B2 JP5060148 B2 JP 5060148B2
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screw shaft
cut
screw hole
screw
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JP2008255577A (en
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伸二 有馬
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株式会社国元商会
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Description

本発明は、螺軸を併用する各種建築金物などに活用できる螺軸固定構造、即ち、本体のネジ孔に螺嵌結合された螺軸の弛み止め機能を備えた螺軸固定構造に関するものである。   The present invention relates to a screw shaft fixing structure that can be used for various building hardware that uses a screw shaft in combination, that is, a screw shaft fixing structure having a function of preventing loosening of a screw shaft that is screwed into a screw hole of a main body. .

本体のネジ孔に螺嵌結合された螺軸の弛み止め機能を備えた螺軸固定構造としては、特許文献１に記載されるように、前記本体からネジ孔の軸心延長線の片側に位置するように連設された操作片と、この操作片内に切り起こし形成された係止用舌片とを備え、前記操作片は、先端が前記ネジ孔から遠ざかる方向に突出するように切り起こされ、前記係止用舌片は、前記操作片とは逆向きで且つ先端の巾より基部の巾が広くなる形状に切り起こされ、前記操作片の先端に前記ネジ孔の軸心方向に操作力を加えたとき、前記係止用舌片の巾広基部の両側で前記操作片が屈曲して、前記操作片の先端から係止用舌片の先端までの部分が一体に傾動し、係止用舌片の先端が前記螺軸のネジ溝に食い込むように構成された、螺軸固定構造が知られている。
特開２００４−１９０４５９号公報 As described in Patent Document 1, as a screw shaft fixing structure having a function of preventing loosening of a screw shaft that is screwed and coupled to a screw hole of a main body, the screw shaft is positioned on one side of an axial extension line of the screw hole. And a locking tongue piece formed by cutting and raising in the operation piece, and the operation piece is cut and raised so that the tip protrudes in a direction away from the screw hole. The locking tongue piece is cut and raised in a shape opposite to the operation piece and having a base width wider than the width of the tip, and is operated in the axial direction of the screw hole at the tip of the operation piece. When a force is applied, the operation piece bends on both sides of the wide base portion of the locking tongue piece, and the portion from the distal end of the operation piece to the distal end of the locking tongue piece integrally tilts, There is known a screw shaft fixing structure in which a tip of a stop tongue piece is configured to bite into a screw groove of the screw shaft.
Japanese Patent Laid-Open No. 2004-190459

上記のような従来の螺軸固定構造では、螺軸の横側方に位置する巾広基部からネジ孔側へ斜めに傾斜している係止用舌片が前記巾広基部を支点に先端が螺軸に接近する方向に揺動することにより、当該係止用舌片の先端が螺軸のネジ溝に食い込む構成であるため、当該螺軸のネジ溝に対する係止用舌片の先端の食い込み方向が、当該螺軸の軸心に対し直角方向ではなく斜め方向になる。従って、係止用舌片の先端の食い込みが弱く、強力な弛み止め効果を期待することができなかった。   In the conventional screw shaft fixing structure as described above, the locking tongue that is inclined obliquely from the wide base portion located on the lateral side of the screw shaft toward the screw hole side has the distal end with the wide base portion as a fulcrum. Since the tip of the locking tongue piece bites into the screw groove of the screw shaft by swinging in a direction approaching the screw shaft, the tip of the locking tongue piece bites into the screw groove of the screw shaft. The direction is not a direction perpendicular to the axis of the screw shaft but an oblique direction. Therefore, the biting of the tip of the locking tongue piece is weak, and a strong anti-loosening effect cannot be expected.

本発明は上記のような従来の問題点を解消し得る螺軸固定構造を提供することを目的とするものであって、請求項１に記載の螺軸固定構造は、後述する実施形態の参照符号を付して示すと、本体２のネジ孔７に螺嵌結合される螺軸（螺軸部２２ａ）の固定構造であって、前記本体２のネジ孔７の外側で当該ネジ孔７の一側方から他側方に向かって当該ネジ孔７の軸心延長線を横断する操作片８が設けられ、この操作片８は一端部８ａのみが前記本体２に固定された片持ち状のもので、当該操作片８には、前記ネジ孔７に螺嵌される前記螺軸（螺軸部２２ａ）が貫通する貫通孔部１２と、この貫通孔部１２から離れた位置から前記本体（折り返し端部５）表面側に突出すると共に先端ほど前記ネジ孔７に近づくように傾斜する切り起こし舌片９，１０とが設けられ、この切り起こし舌片９，１０には前記本体（折り返し端部５）表面に隣接する先端部９ａ，１０ａが設けられ、前記操作片８を本体（折り返し端部５）表面側に打ち叩いて当該本体表面に接近するように変形させたとき、前記切り起こし舌片９，１０が、その先端部９ａ，１０ａが本体（折り返し端部５）表面と圧接することにより操作片８側に接近するように変形し、この変形に伴って当該切り起こし舌片９，１０の先端部９ａ，１０ａが本体（折り返し端部５）表面上をネジ孔７側へ摺接移動し、その先端（尖端１３）を前記ネジ孔７に螺嵌された螺軸（螺軸部２２ａ）のネジ溝に食い込ませることができるように構成されている。   An object of the present invention is to provide a screw shaft fixing structure capable of solving the conventional problems as described above, and the screw shaft fixing structure according to claim 1 is referred to an embodiment described later. When indicated by a reference numeral, it is a fixing structure of a screw shaft (screw shaft portion 22 a) that is screwed into the screw hole 7 of the main body 2, and the screw hole 7 is formed outside the screw hole 7 of the main body 2. An operation piece 8 that crosses the axial extension line of the screw hole 7 from one side to the other side is provided, and this operation piece 8 has a cantilever shape in which only one end 8 a is fixed to the main body 2. Therefore, the operation piece 8 includes a through-hole portion 12 through which the screw shaft (screw shaft portion 22a) screwed into the screw hole 7 passes, and the main body (from the position away from the through-hole portion 12). Folded end portion 5) A cut-and-raised tongue piece 9 that protrudes to the surface side and inclines so that the tip approaches the screw hole 7 10 and the cut and raised tongue pieces 9 and 10 are provided with front end portions 9a and 10a adjacent to the surface of the main body (folded end portion 5), and the operation piece 8 is attached to the surface of the main body (folded end portion 5). When it is deformed so as to come close to the surface of the main body by hitting it to the side, the cut-and-raised tongue pieces 9, 10 have their tip portions 9a, 10a pressed against the surface of the main body (folded end portion 5), thereby operating pieces. The tip part 9a, 10a of the cut-and-raised tongue piece 9, 10 is slidably moved on the surface of the main body (folded end part 5) to the screw hole 7 side in accordance with the deformation. The tip (pointed tip 13) is configured to be able to bite into the screw groove of the screw shaft (screw shaft portion 22a) screwed into the screw hole 7.

上記構成の本発明を実施するについて、切り起こし舌片９，１０の先端部は、本体表面（折り返し端部５）に対し斜めに対面するように構成しても良いが、請求項２に記載のように、前記切り起こし舌片９，１０の先端部９ａ，１０ａは、前記本体（折り返し端部５）表面とほぼ平行な向きに折曲させておくことができる。又、前記切り起こし舌片９，１０は、操作片８の貫通孔部１２に対し前記一端部８ａのある側に設けられた短い切り起こし舌片９と遊端部８ｂのある側に設けられた長い切り起こし舌片１０の内、少なくとも一方、好ましくは前記長い切り起こし舌片１０を設けることが望ましいが、請求項３に記載のように、前記短い切り起こし舌片９と長い切り起こし舌片１０の両方を設けることができる。更に、請求項４に記載のように、切り起こし舌片９，１０の先端部９ａ，１０ａには、前記ネジ孔７の軸心に対し左右対称の一対の尖端１３を形成しておくことができる。   In carrying out the present invention having the above-described configuration, the tip end portions of the cut and raised tongue pieces 9 and 10 may be configured to face each other obliquely with respect to the main body surface (the folded end portion 5). As described above, the tip end portions 9a and 10a of the cut and raised tongue pieces 9 and 10 can be bent in a direction substantially parallel to the surface of the main body (the folded end portion 5). The cut-and-raised tongue pieces 9 and 10 are provided on the side where the short cut-and-raised tongue piece 9 and the free end portion 8b are provided on the side having the one end 8a with respect to the through-hole portion 12 of the operation piece 8. It is desirable to provide at least one of the long cut-and-raised tongue pieces 10, preferably the long cut-and-raised tongue piece 10, but the short cut-and-raised tongue piece 9 and the long cut and raised tongue piece as described in claim 3. Both pieces 10 can be provided. Further, as described in claim 4, a pair of pointed ends 13 that are symmetrical with respect to the axial center of the screw hole 7 may be formed on the tip portions 9 a and 10 a of the cut and raised tongue pieces 9 and 10. it can.

又、請求項５に記載のように、前記操作片８には、その左右両側辺から折曲連設された補強用側壁部８ｃを設けることができる。又、前記操作片８は如何なる方法で本体２に取り付けても良いし、可能な場合は本体２からの切り起こしにより本体２と一体に構成することもできるが、請求項６に記載のように、前記操作片８には、その一端部８ａ側に、前記ネジ孔７の軸心と平行な本体側板部６ａの外側に当接状態で固着される取付け用板部１１を折曲連設しておくことができる。このとき、前記本体２のネジ孔７が、本体２の左右両側板部６ａ，６ｂ間に挟持されたナット１５で構成されている場合は、請求項７に記載のように、前記操作片８の取付け用板部１１には、本体側板部６ａに設けられた貫通孔２５ａ〜２５ｃから本体２内側に入り込んで前記ナット１５に圧接するナット位置決め兼用の取付け用舌片２４ａ〜２４ｃにより本体２に取り付けることができる。   Further, as described in claim 5, the operation piece 8 can be provided with a reinforcing side wall portion 8c that is continuously bent from both the left and right sides. Further, the operation piece 8 may be attached to the main body 2 by any method, and if possible, the operation piece 8 may be formed integrally with the main body 2 by being raised from the main body 2. The operation piece 8 is provided with a bent plate 11 on one end 8a side thereof, which is fixed in contact with the outer side of the main body side plate 6a parallel to the axis of the screw hole 7. I can keep it. At this time, when the screw hole 7 of the main body 2 is constituted by the nut 15 sandwiched between the left and right side plate portions 6 a and 6 b of the main body 2, the operation piece 8 as described in claim 7. The mounting plate part 11 is attached to the main body 2 by mounting tongue pieces 24a to 24c which are also used for positioning the nuts and enter the inside of the main body 2 through the through holes 25a to 25c provided in the main body side plate part 6a. Can be attached.

上記請求項１に記載の構成の本発明に係る螺軸固定構造によれば、操作片を本体表面側に打ち叩いて当該本体表面に接近するように変形させたとき、前記切り起こし舌片が、その先端部が本体表面と圧接することにより操作片側に接近するように変形し、この変形に伴って当該切り起こし舌片の先端部が本体表面をネジ孔側へ摺接移動し、その先端が前記ネジ孔に螺嵌された螺軸のネジ溝に食い込むのであるから、当該螺軸のネジ溝に対する切り起こし舌片先端の食い込み方向が、当該螺軸の軸心に対し直交する向きとなり、螺軸の軸心に対し真横から切り起こし舌片の先端を食い込ませることができる。しかも、操作片に対する打ち叩き方向は、螺軸の軸心方向であって、螺軸のネジ溝に対する切り起こし舌片先端部の食い込み方向に打ち叩くのではないから、切り起こし舌片先端が反動で螺軸のネジ溝から離脱することがなく、強力に切り起こし舌片先端を螺軸のネジ溝に食い込ませ且つその状態を確実に保持させることができる。即ち、本体ネジ孔に対する螺軸の強力な弛み止め効果が期待できる。   According to the screw shaft fixing structure according to the present invention having the configuration described in claim 1, when the operation piece is struck to the main body surface side and deformed so as to approach the main body surface, the cut and raised tongue piece is The tip of the tongue is deformed so as to approach the operation piece by being pressed against the surface of the main body, and the tip of the tongue piece is slidably moved on the surface of the main body to the screw hole side along with this deformation. Bite into the screw groove of the screw shaft screwed into the screw hole, the biting direction of the cut and raised tongue piece with respect to the screw groove of the screw shaft is perpendicular to the axis of the screw shaft, The tip of the tongue piece can be bitten by cutting and raising from the side of the axis of the screw shaft. Moreover, the tapping direction with respect to the operation piece is the axial direction of the screw shaft, and not the tapping direction of the cut and raised tongue piece with respect to the screw groove of the screw shaft. Thus, it is possible to firmly cut and raise the tip of the tongue piece into the screw groove of the screw shaft and securely hold the state without detaching from the screw groove of the screw shaft. That is, a strong loosening prevention effect of the screw shaft with respect to the main body screw hole can be expected.

尚、請求項２に記載の構成によれば、操作片を打ち叩いたときの切り起こし舌片先端部の本体表面上でのネジ孔方向への摺接移動が円滑に行われ、操作が容易になる。又、請求項３に記載の構成によれば、螺軸を両側から挟み込むように左右一対の切り起こし舌片の先端を螺軸のネジ溝に食い込ませることができ、請求項４に記載の構成によれば、切り起こし舌片先端の左右対称の一対の尖端で螺軸を自動調心的に抱きかかえるように食い込ませることができるので、これら請求項３や４に記載の構成によれば、切り起こし舌片先端の食い込み効果を高め、螺軸の弛み止め効果を一層高めることができる。   In addition, according to the structure of Claim 2, when the operation piece is struck, the sliding movement in the screw hole direction on the main body surface of the cut-and-raised tongue piece is smoothly performed, and the operation is easy. become. According to the configuration described in claim 3, the ends of the pair of left and right cut and raised tongue pieces can be bitten into the screw groove of the screw shaft so as to sandwich the screw shaft from both sides. According to the configuration described in claims 3 and 4, the screw shaft can be bitten so as to be held in a self-aligning manner by a pair of symmetrically sharpened tips at the tip of the cut and raised tongue piece. The effect of cutting and raising the tip of the tongue piece can be enhanced, and the effect of preventing the screw shaft from loosening can be further enhanced.

又、請求項５に記載の構成によれば、変形させる切り起こし舌片を備えると共にそれ自体本体表面側へ接近させるように変形させなければならない操作片を、これら変形動作が円滑確実に行わせることができる、比較的板厚の薄い板材から構成しても、操作片そのものは補強用側壁部で補強して、打ち叩き操作時の操作力を確実に切り起こし舌片に伝達し、所期の作用を確実に行わせることができる。   Further, according to the structure of the fifth aspect, the operation piece that has the cut-and-raised tongue piece to be deformed and must be deformed so as to be brought close to the surface of the main body itself can be smoothly and reliably performed. Even if it is made of a relatively thin plate material, the operation piece itself is reinforced by the reinforcing side wall portion, and the operation force during the tapping operation is reliably cut up and transmitted to the tongue piece. It is possible to reliably perform the operation.

更に、請求項６に記載の構成によれば、本体表面が十分な面積を持たない場合でも、操作片に十分な広さの取付け面を確保し、溶接止め、ボルトナット止め、リベット止めなど、任意の取付け方法を採用して簡単容易に操作片を本体に組付けることができる。この場合、請求項７に記載の構成によれば、操作片を本体に組付けるための手段（取付け用舌片）により、ネジ孔を構成するナットを本体に取り付けることができ、コストダウンを図ることができる。   Furthermore, according to the configuration of claim 6, even when the surface of the main body does not have a sufficient area, a sufficiently wide mounting surface is secured on the operation piece, welding stop, bolt nut stop, rivet stop, etc. Any mounting method can be adopted to easily and easily assemble the operation piece to the main body. In this case, according to the structure of Claim 7, the nut which comprises a screw hole can be attached to a main body by the means (attachment tongue piece) for assembling an operation piece to a main body, and it aims at a cost reduction. be able to.

以下に本発明による螺軸固定構造を土留め壁用コンクリート型枠連結具に応用した場合の好適実施形態を添付図に基づいて説明すると、図１〜図３に於いて、１は土留め壁用コンクリート型枠連結具であって、本体２と、この本体２の一端に設けられた土留め壁への連結部３と、本体２の他端に設けられたセパレーター連結部４とから成る。   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment in which a screw shaft fixing structure according to the present invention is applied to a concrete formwork connector for a retaining wall will be described with reference to the accompanying drawings. In FIGS. This is a concrete formwork connector for use, and comprises a main body 2, a connecting portion 3 to a retaining wall provided at one end of the main body 2, and a separator connecting portion 4 provided at the other end of the main body 2.

前記本体２は、セパレーター連結部４側で折り返したコ字形帯状板から成り、セパレーター連結部４は、本体２の折り返し端部５に設けられたネジ孔７と、折り返し端部５に連設した操作片８と、この操作片８に形成された一対の切り起こし舌片９，１０とから構成されている。   The main body 2 is formed of a U-shaped belt-like plate folded back on the separator connecting portion 4 side. The separator connecting portion 4 is connected to the screw hole 7 provided in the folded end portion 5 of the main body 2 and the folded end portion 5. The operation piece 8 includes a pair of cut and raised tongue pieces 9 and 10 formed on the operation piece 8.

前記操作片８は、その一端部８ａから折曲連設された取付け板部１１において、本体２の両側板６ａ，６ｂの一方の外側面に当接状態で溶接など適当な手段で固着されたもので、その一端部８ａから遊端部８ｂに至るほど本体２の折り返し端部５から離れるように傾斜すると共に、左右両側辺には、外向きに折曲連設された補強用側壁部８ｃが形成されている。そして操作片８には、矩形の貫通孔部１２が設けられている。この貫通孔部１２は、ネジ孔７の軸心方向からみたときに、当該貫通孔部１２内にネジ孔７の全体が含まれるような大きさであるが、当該貫通孔部１２内の操作片一端部８ａがある側に偏ってネジ孔７が位置するように形成されている。   The operation piece 8 is fixed to the outer surface of one of the side plates 6a and 6b of the main body 2 by an appropriate means such as welding in a mounting plate portion 11 that is bent from one end portion 8a. The reinforcing side wall 8c is inclined so as to move away from the folded end 5 of the main body 2 from the one end 8a to the free end 8b, and is bent outwardly on the left and right sides. Is formed. The operation piece 8 is provided with a rectangular through-hole portion 12. The through hole 12 is sized so that the entire screw hole 7 is included in the through hole 12 when viewed from the axial direction of the screw hole 7. The screw hole 7 is formed so as to be biased toward the side where the one end 8a is located.

而して一対の切り起こし舌片９，１０は、操作片８における前記矩形の貫通孔部１２を形成するものであって、操作片にＨ形の切り込みを入れ、その操作片８の長さ方向に隣接する２つの矩形舌片部を本体２の折り返し端部５側に押し出すことにより、矩形の貫通孔部１２と一対の切り起こし舌片９，１０とが形成されている。このとき、操作片８の一端部８ａに近い側の切り起こし舌片９は、この切り起こし舌片９の基部となる貫通孔部１２の内側辺がネジ孔７及び本体２の折り返し端部５に近いために短く、反対の操作片８の遊端部８ｂに近い側の切り起こし舌片１０は、この切り起こし舌片１０の基部となる貫通孔部１２の外側辺がネジ孔７及び本体２の折り返し端部５から遠いために長くなっており、各切り起こし舌片９，１０は、その基部（貫通孔部１１の内側辺及び外側辺）からネジ孔７の開口端に向かって傾斜して延出し、その先端部９ａ，１０ａは、本体２の折り返し端部５と平行になる向きに折曲されると共に当該本体２の折り返し端部５に隣接している。そしてこれら切り起こし舌片９，１０の先端部９ａ，１０ａには、図３に示すように、それぞれネジ孔７の軸心に対し対称に一対の尖端１３が突設されている。   Thus, the pair of cut-and-raised tongue pieces 9 and 10 form the rectangular through-hole portion 12 in the operation piece 8, and an H-shaped cut is made in the operation piece. By pushing two rectangular tongue pieces adjacent in the direction to the folded end 5 side of the main body 2, a rectangular through-hole portion 12 and a pair of cut and raised tongue pieces 9 and 10 are formed. At this time, the cut-and-raised tongue piece 9 on the side close to the one end portion 8 a of the operation piece 8 has the inner side of the through-hole portion 12 serving as the base of the cut-and-raised tongue piece 9 at the screw hole 7 and the folded end portion 5 of the main body 2. The cut-and-raised tongue piece 10 on the side close to the free end portion 8b of the opposite operation piece 8 has a screw hole 7 and a main body on the outer side of the through-hole portion 12 serving as the base of the cut-and-raised tongue piece 10. 2 is long because it is far from the folded end portion 5, and each of the raised tongue pieces 9, 10 is inclined from the base portion (the inner side and the outer side of the through-hole portion 11) toward the opening end of the screw hole 7. The leading end portions 9 a and 10 a are bent in a direction parallel to the folded end portion 5 of the main body 2 and are adjacent to the folded end portion 5 of the main body 2. As shown in FIG. 3, a pair of pointed tips 13 project from the tip portions 9 a and 10 a of the cut and raised tongue pieces 9 and 10 symmetrically with respect to the axis of the screw hole 7.

前記ネジ孔７は、本体２の折り返し端部５に形成された貫通孔１４と、当該本体２の折り返し端部５の内側に固定されたナット１５とで構成されている。前記ナット１５は、溶接で本体２の内側に固着することができるが、先に示した特許文献１に記載されるようなカシメ方法で本体２に固着しても良い。   The screw hole 7 includes a through hole 14 formed in the folded end portion 5 of the main body 2 and a nut 15 fixed inside the folded end portion 5 of the main body 2. The nut 15 can be fixed to the inside of the main body 2 by welding, but may be fixed to the main body 2 by a caulking method as described in Patent Document 1 described above.

前記本体２の土留め壁への連結部３は、各種のものが考えられるが、この実施形態では、前記本体２の左右両側板部６ａ，６ｂの遊端部間に挟持固定されて当該本体２から突出する螺軸部１６で構成している。   Various connecting portions 3 to the earth retaining wall of the main body 2 are conceivable. In this embodiment, the main body 2 is sandwiched and fixed between the free end portions of the left and right side plate portions 6a and 6b. The screw shaft portion 16 protrudes from 2.

図４に示すように、従来周知の通り土留め壁１７は、適当間隔おきに立設された矢板支持用Ｈ形鋼１８間に所要枚数の矢板１９を落とし込んで、上下に隣接する矢板１９によって土留めのための壁を構成したものであり、上記構成の連結具１を使用するために、矢板支持用Ｈ形鋼１８のコンクリート壁築造側（山側とは反対側）のフランジ部１８ａの外側面適当箇所に、連結具１の螺軸部１６を螺合し得るネジ孔を備えた部材、具体的には、ナット２０を内側に固着した部材２１が溶接により固着される。そして連結具１の前記螺軸部１６を部材２１のナット２０（ネジ孔）に螺合締結し、所要長さに調整されたセパレーター２２の一端螺軸部２２ａを、図３Ｂに示すように、連結具１のセパレーター連結部４におけるネジ孔７（ナット１１のネジ孔）に螺合する。このとき螺軸部２２ａは操作片８の矩形の貫通孔部１２内及び一対の切り起こし舌片９，１０の対向先端部９ａ，１０ａ間を通過するだけで、これらとは干渉しない。   As shown in FIG. 4, as is conventionally known, the retaining wall 17 is formed by dropping a required number of sheet piles 19 between sheet pile supporting H-sections 18 erected at appropriate intervals, and the sheet piles 19 adjacent to each other vertically. A wall for earth retaining is formed, and in order to use the connector 1 having the above-described structure, the flange wall 18a on the concrete wall construction side (the opposite side to the mountain side) of the H-shaped steel 18 for supporting sheet piles is used. A member provided with a screw hole capable of screwing the screw shaft portion 16 of the connector 1 at an appropriate side surface, specifically, a member 21 having a nut 20 fixed inside is fixed by welding. Then, the screw shaft portion 16 of the connector 1 is screwed and fastened to the nut 20 (screw hole) of the member 21, and the one-end screw shaft portion 22a of the separator 22 adjusted to a required length is shown in FIG. Screwed into the screw hole 7 (screw hole of the nut 11) in the separator connecting portion 4 of the connector 1. At this time, the screw shaft portion 22a only passes through the rectangular through-hole portion 12 of the operation piece 8 and between the opposed tip portions 9a, 10a of the pair of raised tongue pieces 9, 10, and does not interfere with these.

セパレーター２２の一端螺軸部２２ａを連結具１のネジ孔７に所要深さまで螺合させたならば、図３Ｃに示すように、操作片８の遊端部８ｂをセパレーター２２の螺進方向（ネジ孔７の軸心方向）にハンマーその他の適当な工具又は資材で打ち叩いて操作力Ｆを加える。この結果、操作片８がその一端部８ａを支点に本体２の折り返し端部５側に接近するように曲げられて変形することになるが、このとき一対の切り起こし舌片９，１０は、変形する操作片８と本体２の折り返し端部５との間で挟まれ、その操作片８側の基部を支点に当該操作片８に接近する側へ曲げられて変形する。このとき各切り起こし舌片９，１０の先端部９ａ，１０ａは、本体２の折り返し端部５の表面上を摺接しながらネジ孔７側へ移動することになり、当該ネジ孔７に螺合しているセパレーター２２の螺軸部２２ａのネジ溝に食い込む結果となる。   If the one end screw shaft portion 22a of the separator 22 is screwed to the screw hole 7 of the connector 1 to the required depth, the free end portion 8b of the operation piece 8 is moved in the screwing direction of the separator 22 (see FIG. 3C). The operation force F is applied by striking it with a hammer or other appropriate tool or material in the axial direction of the screw hole 7). As a result, the operation piece 8 is bent and deformed with its one end portion 8a as a fulcrum so as to approach the folded end portion 5 side of the main body 2. At this time, the pair of cut and raised tongue pieces 9 and 10 are It is sandwiched between the operating piece 8 to be deformed and the folded end portion 5 of the main body 2, and is bent and deformed toward the side approaching the operating piece 8 with the base on the operating piece 8 side as a fulcrum. At this time, the leading end portions 9a and 10a of the cut and raised tongue pieces 9 and 10 move to the screw hole 7 side while sliding on the surface of the folded end portion 5 of the main body 2, and are screwed into the screw holes 7. As a result, the threaded portion of the threaded shaft portion 22a of the separator 22 is bitten.

セパレーター２２の他端に対するコンクリート型枠２３の結合は、従来周知の通り、例えばセパレーター２２の他端部に結合された型枠受け用コーン２４や、型枠２３の外側でセパレーター２２（前記コーン２４から突出する螺軸部）に連結される型枠締結金具２５等を使用して行われる。   The concrete mold 23 is coupled to the other end of the separator 22 as is well known in the art, for example, a mold receiving cone 24 coupled to the other end of the separator 22 or the separator 22 (the cone 24 on the outside of the mold 23). This is performed using a mold fastening bracket 25 or the like that is coupled to a threaded shaft portion projecting from the mold.

図５〜図７は、操作片８の取付け方法の他の例を示している。この例では、操作片８の一端部８ａから折曲連設した取付け用板部１１の左右両側辺と先端辺とからそれぞれ取付け用舌片２４ａ〜２４ｃを切り起こしにより一体形成すると共にこれら各舌片２４ａ〜２４ｃを本体２の側板部６ａ側に折曲し、本体２の側板部６ａには、前記３つの取付け用舌片２４ａ〜２４ｃがそれぞれ貫通する貫通孔２５ａ〜２５ｃを設けておき、本体２の折り返し端部５に内側に、本体２の左右両側板部６ａ，６ｂで平行両側辺が挟まれて回転止めされる状態にナット１５を嵌合させ、前記各貫通孔２５ａ〜２５ｃに各取付け用舌片２４ａ〜２４ｃを挿通させるように取付け用板部１１を本体側板部６ａに当接させたとき、３つの取付け用舌片２４ａ〜２４ｃの内の並列する２つの取付け用舌片２４ａ，２４ｂがハの字形に変形してナット１５の一対の斜辺を挟み込むように構成している。この結果、ナット１５は取付け用舌片２４ａ，２４ｂとの摩擦力で位置決めされると共に、操作片８が３つの取付け用舌片２４ａ〜２４ｃと各貫通孔２５ａ〜２５ｃとの係合により本体２に取り付けられる。   5-7 has shown the other example of the attachment method of the operation piece 8. FIG. In this example, the attachment tongue pieces 24a to 24c are integrally formed by cutting and raising from the left and right sides and the tip side of the attachment plate portion 11 that is bent from the one end portion 8a of the operation piece 8, and the tongues are integrally formed. The pieces 24a to 24c are bent toward the side plate portion 6a of the main body 2, and the side plate portion 6a of the main body 2 is provided with through holes 25a to 25c through which the three attachment tongue pieces 24a to 24c pass, respectively. The nut 15 is fitted inside the folded end portion 5 of the main body 2 so that the parallel both sides are sandwiched between the left and right side plate portions 6a and 6b of the main body 2 and are prevented from rotating. When the mounting plate 11 is brought into contact with the main body side plate 6a so that the mounting tongues 24a to 24c are inserted, the two mounting tongues juxtaposed among the three mounting tongues 24a to 24c. 24a and 24b are C-shaped Deformed by the are configured to sandwich the pair of oblique side of the nut 15. As a result, the nut 15 is positioned by the frictional force with the mounting tongue pieces 24a and 24b, and the operation piece 8 is engaged with the three mounting tongue pieces 24a to 24c and the through holes 25a to 25c, thereby causing the main body 2 to move. Attached to.

尚、図では３つの取付け用舌片２４ａ〜２４ｃの内、１つの取付け用舌片２４ｃがナット１５から離れて位置しているが、この取付け用舌片２４ｃと本体２の折り返し端部５との間でナット５が挟み付けられるように構成して、ナット１５の取付け強度を高めることもできる。勿論、各取付け用舌片２４ａ〜２４ｃをナット１５から離して配置し、これら取付け用舌片２４ａ〜２４ｃを操作片８の取付け手段としてのみ利用することもできる。この場合は、ナット１５は溶接など、他の適当な方法で本体２に固定される。勿論、ネジ孔７を構成するのにナット１５を使用したが、本体２の板厚が厚いときは、単にネジ孔を加工するだけで良いし、バーリング加工で形成した貫通孔の内側にネジ溝加工してネジ孔を構成することもできる。   In the figure, of the three attachment tongues 24a to 24c, one attachment tongue 24c is located away from the nut 15. However, the attachment tongue 24c and the folded end 5 of the main body 2 are provided. It is also possible to increase the mounting strength of the nut 15 by sandwiching the nut 5 therebetween. Of course, it is also possible to arrange the mounting tongue pieces 24 a to 24 c apart from the nut 15, and use these mounting tongue pieces 24 a to 24 c only as means for mounting the operation piece 8. In this case, the nut 15 is fixed to the main body 2 by other appropriate methods such as welding. Of course, the nut 15 is used to form the screw hole 7, but when the plate thickness of the main body 2 is thick, it is only necessary to process the screw hole, and the screw groove is formed inside the through hole formed by burring. A screw hole can also be formed by processing.

土留め壁用コンクリート型枠連結具１の土留め壁への連結部３としては、先に示した特許文献１に記載されるように、各種構造のものが採用できる。勿論、本発明の螺軸固定構造は、上記のような土留め壁用コンクリート型枠連結具１にのみ利用できるものではなく、螺軸が螺嵌結合されて使用される各種建築金物などの弛み止め対策として活用できるものである。   As the connection part 3 to the retaining wall of the concrete formwork coupler 1 for the retaining wall, those having various structures can be adopted as described in Patent Document 1 described above. Of course, the screw shaft fixing structure of the present invention is not only applicable to the concrete formwork coupler 1 for a retaining wall as described above, and loosening of various construction hardware used by screwing and joining the screw shaft. It can be used as a stop measure.

本発明の一実施形態を示す側面図である。It is a side view which shows one Embodiment of this invention. Ａ図はその要部の平面図、Ｂ図は同要部の底面図である。Fig. A is a plan view of the main part, and Fig. B is a bottom view of the main part. Ａ図は同要部の拡大正面図、Ｂ図は螺軸を螺嵌した状態での同要部の拡大縦断側面図、Ｃ図は操作片を操作した螺軸固定状態での同要部の拡大縦断側面図である。Fig. A is an enlarged front view of the main part, Fig. B is an enlarged vertical side view of the main part in a state where the screw shaft is screwed, and Fig. C is a view of the main part in a state where the screw shaft is fixed by operating the operation piece. It is an enlarged vertical side view. 図１に示す土留め壁用コンクリート型枠連結具を利用して構成した土留め壁の要部の縦断側面図である。It is a vertical side view of the principal part of the earth retaining wall comprised using the concrete formwork connector for earth retaining walls shown in FIG. 別の実施形態を示す要部の側面図である。It is a side view of the principal part which shows another embodiment. 図５の平面図である。FIG. 6 is a plan view of FIG. 5. 図５の要部の縦断正面図である。It is a vertical front view of the principal part of FIG.

符号の説明Explanation of symbols

１ 土留め壁用コンクリート型枠連結具
２ 本体
３ 土留め壁への連結部
４ セパレーター連結部
５ 本体の折り返し端部
６ａ，６ｂ 本体の左右両側板部
７ ネジ孔
８ 操作片
８ａ 操作片一端部
８ｂ 操作片遊端部
８ｃ 操作片の補強用側壁部
９，１０ 切り起こし舌片
９ａ，１０ａ 切り起こし舌片の先端部
１１ 取付け板部
１２ 矩形の貫通孔部
１３ 尖端
２４ａ〜２４ｃ 取付け用舌片
２５ａ〜２５ｃ 貫通孔 DESCRIPTION OF SYMBOLS 1 Concrete formwork connector for earth retaining wall 2 Main body 3 Connection part to earth retaining wall 4 Separator connection part 5 Folding end part 6a, 6b of main body Left and right both side plate part 7 Screw hole 8 Operation piece 8a One end of operation piece 8b Operation piece free end portion 8c Reinforcing side wall portions 9 and 10 of the operation piece Cut and raised tongue pieces 9a and 10a Tip portion 11 of the cut and raised tongue piece Mounting plate portion 12 Rectangular through hole portion 13 Pointed tips 24a to 24c Mounting tongue pieces 25a-25c through hole

Claims (7)

本体のネジ孔に螺嵌結合される螺軸の固定構造であって、前記本体のネジ孔の外側で当該ネジ孔の一側方から他側方に向かって当該ネジ孔の軸心延長線を横断する操作片が設けられ、この操作片は一端部のみが前記本体に固定された片持ち状のもので、当該操作片には、前記ネジ孔に螺嵌される前記螺軸が貫通する貫通孔部と、この貫通孔部から離れた位置から前記本体表面側に突出すると共に先端ほど前記ネジ孔に近づくように傾斜する切り起こし舌片が設けられ、この切り起こし舌片には前記本体表面に隣接する先端部が設けられ、前記操作片を本体表面側に打ち叩いて当該本体表面に接近するように変形させたとき、前記切り起こし舌片が、その先端部が本体表面と圧接することにより操作片側に接近するように変形し、この変形に伴って当該切り起こし舌片の先端部が本体表面上をネジ孔側へ摺接移動し、その先端を前記ネジ孔に螺嵌された螺軸のネジ溝に食い込ませることができるように構成された、螺軸固定構造。   A screw shaft fixing structure that is screwed and coupled to a screw hole of a main body, and an axial extension line of the screw hole is formed on the outer side of the screw hole of the main body from one side of the screw hole to the other side. A transverse operation piece is provided, and this operation piece has a cantilever shape in which only one end is fixed to the main body, and the operation piece is penetrated by the screw shaft screwed into the screw hole. A hole portion and a cut-and-raised tongue piece projecting from the position away from the through-hole portion to the main body surface side and inclined so as to approach the screw hole toward the tip are provided. And when the operation piece is struck toward the surface of the main body and deformed so as to approach the surface of the main body, the cut and raised tongue piece is in pressure contact with the surface of the main body. To move closer to the operation piece side. The tip portion of the cut and raised tongue piece is slidably moved to the screw hole side on the surface of the main body, and the tip end can be inserted into the screw groove of the screw shaft screwed into the screw hole. , Screw shaft fixing structure. 前記切り起こし舌片の先端部は、前記本体表面とほぼ平行な向きに折曲されている、請求項１に記載の螺軸固定構造。   The screw shaft fixing structure according to claim 1, wherein a tip end portion of the cut and raised tongue piece is bent in a direction substantially parallel to the surface of the main body. 前記切り起こし舌片は、操作片の貫通孔部に対し前記一端部のある側に設けられた短い切り起こし舌片と遊端部のある側に設けられた長い切り起こし舌片の一対から成る、請求項１又は２に記載の螺軸固定構造。   The cut-and-raised tongue piece includes a pair of a short cut-and-raised tongue piece provided on the side having the one end and a long cut-and-raised tongue piece provided on the side having the free end with respect to the through-hole portion of the operation piece. The screw shaft fixing structure according to claim 1 or 2. 前記切り起こし舌片の先端部には、前記ネジ孔の軸心に対し左右対称の一対の尖端が形成されている、請求項１〜３の何れか１項に記載の螺軸固定構造。   The screw shaft fixing structure according to any one of claims 1 to 3, wherein a pair of pointed ends symmetrical with respect to an axis of the screw hole is formed at a tip portion of the cut and raised tongue piece. 前記操作片は、その左右両側辺から折曲連設された補強用側壁部を備えている、請求項１〜４の何れか１項に記載の螺軸固定構造。   The screw shaft fixing structure according to any one of claims 1 to 4, wherein the operation piece includes a reinforcing side wall portion that is bent from both the left and right sides. 前記操作片は、その一端部側に、前記ネジ孔の軸心と平行な本体側板部の外側に当接状態で固着される取付け用板部が折曲連設されている、前記請求項１〜５の何れか１項に記載の螺軸固定構造。 The operating piece is provided at its one end, the mounting plate portion which is fixed in abutment on the outside of the axis parallel to the main body side plate portion of the screw hole is bent continuously provided, claim 1 threaded shaft fixing structure according to any one of to 5. 前記本体のネジ孔は、本体の左右両側板部間に挟持されたナットで構成され、前記操作片の取付け用板部には、本体側板部に設けられた貫通孔から本体内側に入り込んで前記ナットに圧接するナット位置決め兼用の取付け用舌片により本体に取り付けられている、前記請求項６に記載の螺軸固定構造。   The screw hole of the main body is configured by a nut sandwiched between the left and right side plate portions of the main body, and the mounting plate portion of the operation piece enters the main body through a through hole provided in the main body side plate portion. The screw shaft fixing structure according to claim 6, wherein the screw shaft fixing structure is attached to the main body by a mounting tongue piece that also serves as a nut positioning member that presses against the nut.
JP2007095959A 2007-04-02 2007-04-02 Screw shaft fixing structure Active JP5060148B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109236327A (en) * 2018-10-25 2019-01-18 中国建筑第八工程局有限公司 Attached wall deck with slideway

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07102764A (en) * 1993-10-05 1995-04-18 Kure Kogyo Kk Detent metal material for long-sized screw
JP2588473B2 (en) * 1994-02-18 1997-03-05 株式会社城東アンカー Wall tether
JP3416789B2 (en) * 1995-05-11 2003-06-16 クレ工業株式会社 Adjustment bracket with detent for separator for formwork
JP4285712B2 (en) * 1999-03-09 2009-06-24 岡部株式会社 Separator mounting bracket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109236327A (en) * 2018-10-25 2019-01-18 中国建筑第八工程局有限公司 Attached wall deck with slideway

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