JPH0527689Y2 - - Google Patents
Info
- Publication number
- JPH0527689Y2 JPH0527689Y2 JP1988044431U JP4443188U JPH0527689Y2 JP H0527689 Y2 JPH0527689 Y2 JP H0527689Y2 JP 1988044431 U JP1988044431 U JP 1988044431U JP 4443188 U JP4443188 U JP 4443188U JP H0527689 Y2 JPH0527689 Y2 JP H0527689Y2
- Authority
- JP
- Japan
- Prior art keywords
- screw
- grommet
- claw
- hole
- insert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000000078 claw Anatomy 0.000 claims description 68
- 238000003780 insertion Methods 0.000 claims description 24
- 230000037431 insertion Effects 0.000 claims description 24
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 8
- 239000007779 soft material Substances 0.000 description 11
- 238000010079 rubber tapping Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/06—Releasable fastening devices with snap-action
- F16B21/07—Releasable fastening devices with snap-action in which the socket has a resilient part
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Insertion Pins And Rivets (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、パネル同士を連結する場合などに用
いられるスクリユーグロメツトに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a screw grommet used for connecting panels together.
パネル同士を連結するための連結部材として、
フランジ体にスクリユー挿通孔を穿設すると共
に、この挿通孔の下端外周縁部に互に所定間隔離
間して対向する2個の脚体を一体に突設してなる
プラスチツク製のスクリユーグロメツトが知られ
ている(実開昭49−55907号公報)。このスクリユ
ーグロメツトを使用するに当たつては、第1パネ
ルの取付用四角孔に上記両脚体を内方にたわませ
ながら挿入し、挿入後これら両脚体に対する外方
からの押圧力の解除で両脚体を元の状態に弾性復
帰させることにより、上記第1パネルをこれら両
脚体の基端側で支持してフランジ体の下面に当接
させ、この状態でスクリユーの軸部を第2パネル
の取付孔及びフランジ体の挿通孔に順次通して上
記両脚体間に挿入し、スクリユーを回転させるこ
とにより、スクリユー軸部の外周に形成されたね
じ部で上記両脚体内面に該ねじ部に相応したねじ
部を螺設しつつスクリユー軸部をこれら両脚体間
に進出させ、これにより下部がそれぞれ外側方に
広げられた両脚体で上記第1パネルを押圧してこ
れを連結具に固定し、上記両パネルを互に連結す
るものであるが、このグロメツトはセルフタツピ
ング方式であるため、取付孔が円形であるとスク
リユーと共回りしてしまい、従つて円形取付孔に
対しては適用できないという欠点がある。
As a connecting member for connecting panels,
A screw grommet made of plastic, which has a screw insertion hole bored in the flange body, and two legs protruding from the outer periphery of the lower end of the insertion hole, facing each other at a predetermined distance. is known (Utility Model Application Publication No. 49-55907). When using this screw grommet, insert the above-mentioned legs into the square mounting holes of the first panel while bending them inward. By elastically returning both leg bodies to their original states upon release, the first panel is supported at the proximal end sides of both leg bodies and brought into contact with the lower surface of the flange body, and in this state, the shaft portion of the screw is moved to the second By sequentially passing the screw through the mounting hole of the panel and the insertion hole of the flange body and inserting it between the legs, the screw formed on the outer periphery of the screw shaft can be inserted into the inner surface of the legs. The screw shaft portion is advanced between the two legs while the corresponding threaded portion is screwed, and thereby the first panel is pressed by the two legs whose lower portions are spread outward, thereby fixing it to the connector. This grommet connects both panels together, but since this grommet is a self-tapping type, if the mounting hole is circular, it will rotate with the screw, so it cannot be applied to circular mounting holes. The drawback is that it cannot be done.
これに対し、円形の取付孔に適用し得るスクリ
ユーグロメツトとして、第13図に示す如き構成
のものが知られている(特開昭61−192908号公
報)。このスクリユーグロメツトは、フランジ体
aにボルト挿通孔bを穿設し、かつこの挿通孔b
の下端外周縁部に互に所定間隔離間して対向する
一対の脚体c,cを一体に突設すると共に、これ
ら脚体c,cの下端内縁部に内周壁にねじ山dが
螺設された円筒状ナツト体eを薄肉部f,fを介
して一体に連結したものである。 On the other hand, as a screw grommet that can be applied to a circular mounting hole, a structure as shown in FIG. 13 is known (Japanese Unexamined Patent Publication No. 192908/1983). This screw grommet has a bolt insertion hole b formed in the flange body a, and a bolt insertion hole b formed in the flange body a.
A pair of legs c, c facing each other with a predetermined spacing are integrally provided on the outer peripheral edge of the lower end, and a thread d is screwed into the inner peripheral wall at the inner edge of the lower end of these legs c, c. The cylindrical nut bodies e are integrally connected through thin wall portions f, f.
このスクリユーグロメツトを使用するに当たつ
ては、第14図に示すように第1パネルgの取付
用円形孔hに上記ナツト体e及び両脚体c,cを
挿入し、フランジ体aの下面を第1パネルgに当
接させると共に、脚体c,cの係合突部i,iに
よつてグロメツトを第1パネルgに仮止めした
後、この状態でスクリユーjの軸部を第2パネル
kの取付孔l及びフランジ体aの挿通孔bに順次
通してナツト体eに螺合し、スクリユーjを回転
させる。すると、スクリユーjが進行してその頭
部が第2パネルkに当接した後、ナツト部eが脚
部c,c方向に引き上げられて薄肉部f,fが破
断し、更にナツト部eが脚部c,cの下部を外側
方に押し広げながら両脚部c,c間を進行し、こ
れにより外側方に拡げられた両脚体が上記第1パ
ネルgを押圧してこれをスクリユーグロメツトに
固定し、上記両パネルg,kが互に連結されるも
のである。この場合、両脚体c,cが押し広げら
れる際に両脚体c,cの外側面が第1パネルgの
取付孔h周壁部を押圧するが、この押圧力はナツ
ト体eが両脚体c,c間を進行するに従つて強く
なり、それ故この押圧力によつてグロメツトがス
クリユーと共回りすることが防止される。 To use this screw grommet, insert the nut body e and both leg bodies c and c into the circular mounting hole h of the first panel g, as shown in FIG. After bringing the lower surface into contact with the first panel g and temporarily fixing the grommet to the first panel g by the engaging protrusions i, i of the legs c, c, in this state, the shaft of the screw j is moved to the first panel g. 2. Sequentially pass through the mounting hole l of panel k and the insertion hole b of flange body a, screw onto nut body e, and rotate screw j. Then, after the screw j advances and its head abuts the second panel k, the nut part e is pulled up in the direction of the legs c and c, the thin parts f and f are broken, and the nut part e is It moves between the legs c and c while pushing the lower parts of the legs c and c outward, and as a result, the legs spread outward press the first panel g and screw it into the screw grommet. , and both panels g and k are connected to each other. In this case, when the legs c, c are pushed apart, the outer surfaces of the legs c, c press the peripheral wall of the mounting hole h of the first panel g, but this pressing force is caused by the nut body e pushing the legs c, The pressure becomes stronger as the grommet progresses through C, so this pressing force prevents the grommet from rotating together with the screw.
しかしながら、上述した特開昭61−192908号公
報記載のスクリユーグロメツトは、両脚体c,c
の先端にナツト体eを連結した構成であるため、
グロメツトの軸長が長くなると共に、スクリユー
jとしても比較的長尺のものを使用しなければな
らず、また両パネルg,k連結後にスクリユーj
の軸部が第1パネルgの裏側に長く突出するた
め、第1パネルgの裏側に十分なスペースがある
場合でなければ使用できないという欠点がある。
また、ナツト体eをスクリユーjで引き上げて両
脚体c,cを押し広げるものであるため、スクリ
ユーjの回転のための作業時間が長くなり、作業
効率が悪いという問題点もある。 However, the screw grommet described in Japanese Patent Application Laid-open No. 61-192908 mentioned above has both leg bodies c and c.
Since it has a structure in which a nut body e is connected to the tip of the
As the axial length of the grommet becomes longer, a relatively long screw j must be used, and after connecting both panels g and k, the screw j
Since the shaft portion of the first panel g protrudes for a long time on the back side of the first panel g, there is a drawback that it cannot be used unless there is sufficient space on the back side of the first panel g.
Furthermore, since the nut body e is pulled up by the screw j and the leg bodies c and c are spread apart, there is a problem that the working time for rotating the screw j becomes long and the working efficiency is poor.
これに対し、本出願人は、軸長が短く、従つて
比較的短軸のスクリユーを用いることができ、そ
れ故被取付パネル(第1パネル)の裏側に広いス
ペースがない場合でも使用することが可能である
と共に、スクリユー回転のための作業時間を短縮
して作業効率を向上させることができ、しかも被
取付パネルの取付孔が円形であつてもスクリユー
と共回りすることのないスクリユーグロメツトと
して、第15〜17図に示す如き構成のものを提
案した。即ち、このスクリユーグロメツトは、フ
ランジ体a′にスクリユー挿通孔b′を穿設すると共
に、該挿通孔b′の下端外周縁部に互に所定間隔離
間して複数(本例では2個)の脚体c′,c′を突設
し、これら脚体c′,c′を被取付物の取付孔に挿入
して該被取付物を上記フランジ体a′の下面に当接
し、スクリユーの軸部を上記スクリユー挿通孔
b′を通して上記両脚体c′,c′間に進入させ、この
スクリユーを回転させて、スクリユーの軸部の外
周に形成されたねじ部が上記両脚体c′,c′内面に
該ねじ部に相応したねじ部を螺設しつつスクリユ
ー軸部をこれら両脚体c′,c′間に進出させること
により、下部がそれぞれ外側方に広げられた両脚
体c′,c′で上記被取付物を押圧して被取付物を固
定するようにしたスクリユーグロメツトにおい
て、上記両脚体c′,c′にそれぞれ逆U字状のスリ
ツト孔m,mを穿設して該スリツト孔m,m内方
に上端が自由端とされ、スクリユーが螺入される
爪部n,nを形成すると共に、上記両爪部n,n
の外側面長さ方向中間部を外側方に膨出させて該
爪部の外側面上部をそれぞれ下方に向かうに従い
漸次外側方に突出するテーパ面o,oとしたもの
である。なお、pはフランジ体a′の下部に配設さ
れているリング状の軟質材である。 On the other hand, the applicant has found that a screw with a short shaft length can be used, and therefore can be used even when there is not a large space on the back side of the panel to which it is attached (first panel). It is possible to improve work efficiency by shortening the work time required to rotate the screw, and it also does not rotate with the screw even if the mounting hole of the mounted panel is circular. As a method, we proposed a configuration as shown in FIGS. 15 to 17. That is, this screw grommet has a screw insertion hole b' formed in the flange body a', and a plurality of screw grommets (in this example, two ) are provided with protruding legs c' and c', and these legs c' and c' are inserted into the mounting holes of the object to be mounted, and the object is brought into contact with the lower surface of the flange body a', and the screw Insert the shaft into the screw insertion hole above.
b' and enter between the two legs c' and c', and rotate this screw so that the threaded part formed on the outer periphery of the shaft part of the screw is attached to the inner surface of the two legs c' and c'. By threading the corresponding threaded portion and advancing the screw shaft portion between the legs c′, c′, the object to be attached can be mounted with the legs c′, c′ whose lower portions are respectively expanded outward. In a screw grommet that fixes an object by pressing, inverted U-shaped slit holes m and m are formed in both legs c' and c', respectively, and the inside of the slit holes m and m are The upper end of the upper end is a free end, forming claw portions n, n into which the screw is screwed, and both of the above-mentioned claw portions n, n.
The longitudinal intermediate portion of the outer surface of the claw portion is bulged outwardly, and the upper portion of the outer surface of the claw portion is formed into tapered surfaces o and o that gradually protrude outward as they move downward. Note that p is a ring-shaped soft material disposed at the lower part of the flange body a'.
上記スクリユーグロメツトは、脚体c′,c′に上
端が自由端とされ、かつ外側面中間部が外側方に
膨出し、外側面上部に下方に向かうに従い漸次外
側方に突出するテーパ面o,oを有する爪部n,
nを設けたことにより、第18図に示すように両
脚体c′,c′間にスクリユーj′を螺入したときに螺
入初期には爪部n,nの上部が外側方に広がり、
上記テーパ面o,oが被取付物g′の取付孔h′周壁
部をフランジ体a′に向けて押圧し(矢印X,X参
照)、この押圧力によつてフランジ体a′下面が被
取付物に押し付けられ、従つて上記テーパ面o,
o及びフランジ体a′下面によつて取付孔h′周壁部
が強く挟持されるため、そのすべり抵抗によつて
取付孔h′が円形であつてもスクリユーと共回りす
ることがない。また、第19図に示すように螺入
が進行して脚体c,c全体の下部が外側方に広が
ると(矢印Y,Y参照)、テーパ面o,oが取付
孔h′周壁部をより強く押圧し(矢印Z,Z参照)、
被取付物g′にフランジ体a′下面がより強く押し付
けられるため、共回りを防止する力がより増大す
るものである。 The above-mentioned screw grommet has legs c' and c' whose upper ends are free ends, whose outer surface middle part bulges outward, and whose upper outer surface has a tapered surface that gradually projects outward as it goes downward. o, claw part n having o,
By providing the screw j', as shown in Fig. 18, when the screw j' is screwed in between the legs c' and c', the upper parts of the claw parts n and n spread outward at the initial stage of screwing.
The tapered surfaces o and o press the peripheral wall of the mounting hole h' of the object g' toward the flange body a' (see arrows X and X), and this pressing force covers the lower surface of the flange body a'. is pressed against the attachment, so the tapered surface o,
Since the circumferential wall of the mounting hole h' is strongly held between the lower surface of the flange body a' and the flange body a', the sliding resistance prevents the mounting hole h' from rotating with the screw even if the mounting hole h' is circular. Further, as shown in Fig. 19, as the screwing progresses and the entire lower part of the legs c and c expands outward (see arrows Y and Y), the tapered surfaces o and o touch the peripheral wall of the mounting hole h'. Press harder (see arrows Z and Z),
Since the lower surface of the flange body a' is more strongly pressed against the object to be attached g', the force for preventing co-rotation is further increased.
しかしながら、上述した第15〜17図のスク
リユーグロメツトは、両爪体n,n間にスクリユ
ーj′を挿入したときの両爪体n,nの外側方への
広がり量が調節できないため、以下に述べるよう
な欠点を有するものであつた。即ち、このスクリ
ユーグロメツトにおいては、スクリユーj′のねじ
込み開始と共に爪部n,nが広がり、被取付物
g′の取付孔h′周壁部に食い込んでいくが、このと
き被取付物g′の厚みによつて爪部n,nの食い込
みに対する被取付物の抵抗力が異なり、被取付物
が薄くなると抵抗が小さくなつてよく食い込むの
に対し、厚くなると抵抗が大きくなつて食い込み
が小さくなる。従つて、同一のスクリユーグロメ
ツトを用いて種々厚さの被取付物g′に取付物k′を
連結しようとした場合、被取付物g′の厚さによつ
て爪体n,nの広がり量が異なり、広がりがスク
リユーj′に対して大きくなりすぎるとスクリユー
jの軸部外周に形成されたねじ部が爪n,n内面
を彫刻する量が少なくなり、このためねじのかか
りが浅くなつて結合強度、スクリユーのねじ込み
の最後におけるタツピング破壊トルクが低くなる
という問題がある。この場合、作業時におけるエ
アドライバー等の工具によるスクリユーj′の締め
付け時にその工具の締め付け力が強いと、破壊ト
ルクが低いために爪部n,n内面に形成されたね
じ山がつぶれ、スクリユーj′が空回りし、取り付
けの目的が果たせなくなることがある。 However, in the screw grommets shown in FIGS. 15 to 17 described above, the amount of outward spread of the claws n and n when the screw j' is inserted between the claws n and n cannot be adjusted. It had the following drawbacks. That is, in this screw grommet, when the screw j' starts to be screwed in, the claws n and n widen, and the attached object
g' bites into the peripheral wall of the mounting hole h', but at this time, the resistance force of the object to the biting of the claws n, n varies depending on the thickness of the object g', and as the object becomes thinner, The smaller the resistance, the more it digs in, whereas the thicker it is, the bigger the resistance, and the smaller the bite. Therefore, when trying to connect the attachment k' to objects g' of various thicknesses using the same screw grommet, the thickness of the claws n and n depends on the thickness of the object g'. The amount of spread is different, and if the spread is too large for screw j', the thread formed on the outer periphery of the shaft of screw j will be less able to engrave the inner surface of the claws n, n, resulting in shallower threading. As a result, there is a problem that the joint strength and the tapping breaking torque at the end of screwing the screw are low. In this case, if the tightening force of the tool is strong when tightening the screw j' with a tool such as an air screwdriver during work, the threads formed on the inner surfaces of the claws n and n will be crushed due to the low breaking torque, and the screw j'' may become idle and the purpose of the installation may not be achieved.
本考案は、上記事情に鑑みなされたもので、上
記第15〜17図に示した如きタイプのスクリユ
ーグロメツトにおいて、爪部の外側方への広がり
量を一定量に規制してスクリユー進入路の周壁部
の寸法を一定にすることができ、従つて種々の厚
さの被取付物に使用した場合でもセルフタツピン
グ時におけるグロメツトのねじ山形成深さを一定
に保ち、スクリユーとグロメツトとの結合強度、
スクリユーのねじ込みの最後におけるタツピング
破壊トルク等を常時一定量以上確保することが可
能なスクリユーグロメツトを提供することを目的
とする。 The present invention was developed in view of the above circumstances, and in the screw grommet of the type shown in FIGS. The dimensions of the peripheral wall of the grommet can be kept constant, so even when used for objects of various thicknesses, the thread forming depth of the grommet can be kept constant during self-tapping, and the connection between the screw and the grommet can be kept constant. bond strength,
It is an object of the present invention to provide a screw grommet capable of always securing a certain amount or more of tapping breaking torque at the end of screwing in the screw.
即ち、本考案は上記目的を達成するため、フラ
ンジ体にスクリユー挿通孔を穿設すると共に、こ
のフランジ体の下端に被取付物の取付孔に挿入さ
れる挿入体を連設し、この挿入体に上記スクリユ
ー挿通孔と連通してスクリユーの軸部が進入する
スクリユー進入路を形成し、かつ挿入体の上記ス
クリユー進入路周壁部に複数の窓部を穿設し、こ
れら窓部の底壁から上方に向けて上端部を自由端
とした爪部を穿設すると共に、上記各爪部の外側
面長さ方向中間部を外側方に膨出させて該爪部の
外側面上部にそれぞれ下方に向かうに従い漸次外
側方に突出するテーパ面を形成してなり、上記挿
入体を被取付物の取付孔に挿入して該被取付物を
上記フランジ体の下面に当接し、スクリユーの軸
部を上記スクリユー挿通孔を通して上記スクリユ
ー進入路に進入させ、このスクリユーを回転させ
て、スクリユーの軸部の外周に形成されたねじ部
が上記挿入体の各爪部内面に該ねじ部に相応した
ねじ部を螺設しつつスクリユー軸部を各爪部間に
進出させることにより、それぞれ外側方に広げら
れた各爪部の上記テーパ面で被取付物を押圧して
被取付物を固定するようにしたスクリユーグロメ
ツトであつて、上記フランジ体に上記各爪部の上
方に存して上記窓部と連通する透孔を形成すると
共に、各爪部の上端部を上記透孔内に該爪部の外
側面と透孔の外側周壁部とが所定間隔離間した状
態で延出させてなることを特徴とするスクリユー
グロメツトを提供する。
That is, in order to achieve the above object, the present invention provides a flange body with a screw insertion hole, and also connects the lower end of the flange body with an insert body to be inserted into the attachment hole of the object to be attached. A screw entrance path is formed in the screw insertion hole in communication with the screw insertion hole into which the screw shaft enters, and a plurality of windows are bored in the peripheral wall of the screw entrance path of the insert body, and a plurality of windows are formed from the bottom wall of these window portions. A claw portion is formed upward with the upper end being a free end, and a longitudinally intermediate portion of the outer surface of each claw portion is bulged outwardly so that the upper portion of the outer surface of the claw portion is provided with a downwardly extending portion. The insert body is formed with a tapered surface that gradually protrudes outward as the insert body is inserted into the mounting hole of the object to be mounted, and the object to be mounted is brought into contact with the lower surface of the flange body. The screw enters the screw entry path through the screw insertion hole, and the screw is rotated so that the threaded portion formed on the outer periphery of the shaft portion of the screw forms a threaded portion corresponding to the threaded portion on the inner surface of each claw portion of the insert body. The screw shaft part is advanced between each claw part while screwing, so that the tapered surface of each claw part expanded outwardly presses the object to be attached and fixes the object. The flange body is provided with a through hole that exists above each of the claws and communicates with the window, and the upper end of each of the claws is inserted into the through hole. To provide a screw grommet characterized in that an outer surface and an outer circumferential wall of a through hole are extended with a predetermined distance between them.
本考案のスクリユーグロメツトは、上述した構
成としたことにより、第15〜17図に示したグ
ロメツトと同様の作用効果を奏すると共に、フラ
ンジ体に各爪部の上方に存して透孔を形成し、各
爪部の上端部を上記透孔内に該爪部の外側面と透
孔の外側周壁部とが所定間隔離間した状態で延出
させたことにより、セルフタツピング時に爪部が
外側方に一定量広がつた時点で爪部の上端部外側
面が透孔の外側周壁部に当り、爪部の上端部がそ
れ以上外側方に広がることが防止される。従つ
て、本考案によれば爪部の広がりを一定量に規制
し、グロメツトのねじ山形成量を一定に保持して
スクリユーとグロメツトとの結合強度、破壊トル
クを所定量確保し得るものである。
The screw grommet of the present invention has the above-mentioned structure, and has the same effect as the grommet shown in FIGS. The upper end of each claw extends into the through hole with a predetermined distance between the outer surface of the claw and the outer circumferential wall of the hole. At the point when the claw has spread outward by a certain amount, the outer surface of the upper end of the claw comes into contact with the outer circumferential wall of the through hole, and the upper end of the claw is prevented from spreading outward any further. Therefore, according to the present invention, it is possible to control the spread of the claw portion to a certain amount, maintain the thread formation amount of the grommet constant, and secure a predetermined amount of bonding strength and breaking torque between the screw and the grommet. .
以下、実施例を示し、本考案を具体的に説明す
るが、本考案は下記実施例に限定されるものでは
ない。 EXAMPLES Hereinafter, the present invention will be specifically explained with reference to examples, but the present invention is not limited to the following examples.
第1図乃至第5図は本考案の一実施例を示すも
ので、このスクリユーグロメツトは可撓性を有す
るプラスチツクよりなるものである。
1 to 5 show an embodiment of the present invention, in which the screw grommet is made of flexible plastic.
図中1は中央部に円形のスクリユー挿通孔2を
有する円盤状のフランジ体で、上記スクリユー挿
通孔2の両側方にはこの挿通孔2と連通して一対
の四角透孔3,3がそれぞれ互に対向状態で穿設
されている。このフランジ体1は下面中央部に略
円形リング状突部4を有し、これにより上記突部
4外方に円形リング状の軟質材配設溝部5が形成
されていると共に、フランジ体1外周部の上記軟
質材配設溝部5に相応する部分には4個の軟質材
注入小孔6,6,6,6が互に等間隔離間して穿
設され、上記溝部5内には軟質材から円形リング
体7が第6図に示すようにその一部を上記注入小
孔6,6,6,6に溢流させた状態で二色成形に
より設けられている。 In the figure, 1 is a disc-shaped flange body having a circular screw insertion hole 2 in the center, and a pair of square through holes 3, 3 are provided on both sides of the screw insertion hole 2 in communication with the insertion hole 2, respectively. They are drilled facing each other. The flange body 1 has a substantially circular ring-shaped protrusion 4 at the center of the lower surface, and a circular ring-shaped soft material groove 5 is formed on the outside of the protrusion 4. Four soft material injection holes 6, 6, 6, 6 are bored at equal intervals from each other in a portion corresponding to the soft material disposing groove 5 of the part, and the soft material is placed in the groove 5. As shown in FIG. 6, a circular ring body 7 is provided by two-color molding with a portion thereof overflowing into the injection holes 6, 6, 6, 6.
また、上記フランジ体1の挿通孔2の下端外周
縁部には上記透孔3,3の下方に存して互に所定
間隔離間して対向する2個の断面略半円形の脚体
8,8(挿入体)がその先端側を基端側よりも互
に離間させた状態でそれぞれ穿設されている。 Further, at the outer peripheral edge of the lower end of the insertion hole 2 of the flange body 1, two legs 8 having a substantially semicircular cross section are provided below the through holes 3, 3 and facing each other at a predetermined distance. 8 (insert bodies) are drilled with their distal ends spaced further apart from each other than their proximal ends.
ここで、上記両脚体8,8にはそれぞれ上記透
孔3,3と互に連通する四角窓部9,9が長さ方
向にそつて突設されていると共に、これら四角窓
部9,9の下壁部から上方に向けてそれぞれ上端
が自由端とされ、かつこの上端部がフランジ体1
の透孔3,3内にまで延出する四角爪部10,1
0が互に対向状態で穿設されている。上記爪部1
0,10の外側面長さ方向中間部は外側方に向け
て山型に膨出されていると共に、外側面幅方向中
間部には長さ方向に沿つて四角溝部11,11が
形成され、これにより爪部10,10の外側面両
端部に三角山型突板12,12及び12,12が
それぞれ形成されていると共に、これら突板1
2,12及び12,12の長さ方向中間部はそれ
ぞれ係合突部13,13及び13,13とされ、
突板12,12及び12,12の上記係合突部1
3,13及び13,13より上方には下端に向か
うに従い漸次外側方に突出する上側テーパ面1
4,14及び14,14、下方には上端に向かう
に従い漸次外側方に突出する下側テーパ面15,
15及び15,15が設けられている。また、爪
部10,10の上端部はやや薄肉の延出部10
a,10aとされ、この延出部10a,10aが
その外側面10b,10bをフランジ体1の透孔
3,3の外側周壁部3a,3aと所定間隔離間さ
せた状態で透孔3,3内に配置されている。な
お、上記爪部10,10の内面には、軸方向に沿
つてスクリユー軸部挿入用丸溝16,16がそれ
ぞれ互に対向状態で形成されている。また、脚体
8,8の基部(爪部10,10が形成されていな
い部分)8a,8aの長さ方向中間部も外側方に
向けて山型にやや膨出され、これにより上記基部
8a,8aに両側係合突部17,17及び17,
17が形成されている。 Here, rectangular window portions 9, 9 are provided in the leg bodies 8, 8, respectively, projecting along the length direction and communicating with the through holes 3, 3, and these rectangular window portions 9, 9 are provided. The upper ends of the flange body 1 are free ends upward from the lower wall of the flange body 1.
Square claw portions 10, 1 extending into the through holes 3, 3 of
0's are drilled opposite each other. Said claw part 1
The longitudinally intermediate portions of the outer surfaces of Nos. 0 and 10 are bulged outward in a mountain shape, and square groove portions 11 and 11 are formed along the lengthwise direction in the outer widthwise intermediate portions of the outer surfaces. As a result, triangular mountain-shaped projecting plates 12, 12 and 12, 12 are formed at both ends of the outer surfaces of the claw parts 10, 10, respectively, and these projecting plates 1
The longitudinal intermediate portions of 2, 12 and 12, 12 are respectively engagement protrusions 13, 13 and 13, 13,
The above-mentioned engagement projections 1 of the projecting plates 12, 12 and 12, 12
3, 13 and above 13, 13, there is an upper tapered surface 1 that gradually protrudes outward toward the lower end.
4, 14 and 14, 14, and a lower tapered surface 15 that gradually protrudes outward toward the upper end.
15 and 15,15 are provided. Further, the upper end portions of the claw portions 10, 10 are slightly thin-walled extending portions 10.
a, 10a, and the extending portions 10a, 10a are connected to the through holes 3, 3 with their outer surfaces 10b, 10b separated by a predetermined distance from the outer circumferential walls 3a, 3a of the through holes 3, 3 of the flange body 1. located within. Incidentally, on the inner surfaces of the claw parts 10, 10, round grooves 16, 16 for inserting the screw shaft parts are formed along the axial direction, facing each other. Further, the longitudinally intermediate portions of the bases 8a, 8a (portions where the claws 10, 10 are not formed) are also slightly bulged outward in a mountain shape, thereby forming the bases 8a, 8a. , 8a has both side engaging protrusions 17, 17 and 17,
17 is formed.
更に、本実施例のグロメツトの両脚体8,8を
被取付物の円形取付孔に挿入する場合、後述する
第8図に示すように爪部10,10及び基部8
a,8aがそれぞれ内方に撓むものであるが、円
形取付孔の径をA、グロメツトの常態時及び挿入
時における両爪部10,10外縁部間の距離をB
及びB′、グロメツトの常態時及び挿入時におけ
る両基部8a,8aの最外縁部間の距離をC及び
C′とすると(第2,8図参照)、本実施例におい
ては上記各寸法がB>C,B>A,B′≧A,
B′≧C′となるように設定されている。この場合、
常態における両爪部10,10の最外縁部間の距
離Bは取付孔の径Aよりかなり大きく、取付孔を
通過し得る最大巾に形成されている。 Furthermore, when inserting the legs 8, 8 of the grommet of this embodiment into the circular mounting hole of the object to be mounted, the claws 10, 10 and the base 8 are inserted as shown in FIG.
a and 8a are bent inward, the diameter of the circular mounting hole is A, and the distance between the outer edges of both claws 10 and 10 when the grommet is in its normal state and when inserted is B.
and B', the distance between the outermost edges of both bases 8a and 8a when the grommet is in its normal state and when inserted, is C and
C' (see Figures 2 and 8), in this example, the above dimensions are B>C, B>A, B'≧A,
It is set so that B′≧C′. in this case,
The distance B between the outermost edges of the claws 10, 10 in a normal state is considerably larger than the diameter A of the attachment hole, and is formed to have the maximum width that can pass through the attachment hole.
上記スクリユーグロメツトを使用する場合、ま
ず第7図に示すように第1パネル18の取付孔1
9に両脚体8,8を挿入し、第1パネル18にグ
ロメツトを取り付ける。この場合、取付孔19に
脚体8,8を挿入すると、第8図に示すように両
爪部10,10が脚体8,8の進行に伴つて取付
孔19周壁部の押圧力で内方に撓み、次いで両基
部8a,8aが上記押圧力で両爪部10,10と
共に内方に撓むと共に、挿入後に押圧力が解除さ
れることによつて両脚体8,8が元の状態に弾性
復帰し、第7図に示すように第1パネル18が両
脚体8,8の基端側で支持され、フランジ体1の
リング体7が第1パネル18に当接されて仮止め
されるものであるが、この状態においては爪部1
0,10の上側テーパ面14,14の上端部が取
付孔19周壁部に接触し、グロメツトが第1パネ
ル18に確実に係止される。 When using the screw grommet described above, first, as shown in FIG.
Insert the legs 8, 8 into the holes 9, and attach grommets to the first panel 18. In this case, when the legs 8, 8 are inserted into the mounting hole 19, as shown in FIG. Then both base parts 8a, 8a bend inward together with both claw parts 10, 10 due to the above-mentioned pressing force, and the pressing force is released after insertion, so that both leg bodies 8, 8 return to their original state. As shown in FIG. 7, the first panel 18 is supported on the proximal end side of both legs 8, 8, and the ring body 7 of the flange body 1 is brought into contact with the first panel 18 and temporarily fixed. However, in this state, the claw portion 1
The upper ends of the upper tapered surfaces 14, 14 of 0 and 10 come into contact with the peripheral wall of the mounting hole 19, and the grommet is securely locked to the first panel 18.
次に、第2パネル20をその取付孔21をフラ
ンジ体1のスクリユー挿通孔2に合わせた状態で
配置し、第9図に示すようにスクリユー22の軸
部22aを上記取付孔21及び挿通孔2に順次通
し、両爪部10,10の丸溝16,16間(スク
リユー進入路)に進入させ、スクリユー22を回
転させる。これにより、スクリユー軸部22aの
外周に形成されたねじ部22bが上記丸溝16,
16内面を螺旋状に彫刻し、上記ねじ部22bに
対応したねじ部が丸溝16,16内面に螺設さ
れ、かかるスクリユー軸部22bの丸溝16,1
6間への進出につれて両脚体8,8の下部が外側
方に開き、これら脚部で第1パネル18を押圧す
ることにより第10図に示すように該第1パネル
18がグロメツトに固定され、これによつて上記
第1及び第2パネル18,20が互に連結される
ものである。 Next, the second panel 20 is arranged with its mounting hole 21 aligned with the screw insertion hole 2 of the flange body 1, and as shown in FIG. 2 and enter between the round grooves 16, 16 (screw entry path) of both claws 10, 10, and rotate the screw 22. As a result, the threaded portion 22b formed on the outer periphery of the screw shaft portion 22a is connected to the round groove 16,
The inner surface of the screw shaft portion 22b is carved in a spiral shape, and a threaded portion corresponding to the threaded portion 22b is threaded onto the inner surface of the circular groove 16, 16.
6, the lower parts of the legs 8, 8 open outward, and by pressing the first panel 18 with these legs, the first panel 18 is fixed to the grommet as shown in FIG. This connects the first and second panels 18, 20 to each other.
従つて、上記グロメツトにおいては、フランジ
体1下面に軟質材からなるリング体7を設けると
共に、両脚体8,8に上端が自由端とされ、かつ
外側面上部にテーパ面14,14及び14,14
を有する爪部10,10を形成したことにより、
スクリユー22の螺入初期には第9図に示すよう
に爪部10,10上端部が外側方に開いて取付孔
19周壁部を押圧し(矢印X,X参照)、この押
圧力によつて第1パネル18がリング体7に押し
付けられると共に、上側テーパ面14,14が第
1パネル18に食い込み、従つて上記リング体7
のすべり抵抗と上側テーパ面14,14及び1
4,14の第1パネル18への食い込みによつて
グロメツトがスクリユーと共回りすることが防止
される。また、スクリユーの進行に伴つて第10
図に示すように脚体8,8の下部が外側方に広が
り(矢印Y,Y参照)、その結果テコの原理によ
つて上側テーパ面14,14及び14,14は第
1パネル18を強く押圧し(矢印Z,Z参照)、
その結果リング体7が第1パネル18により強く
押し付けられてすべり抵抗が増大するため、より
強く共回りが防止される。また、上記食い込みに
よつてグロメツトが第1パネル18に強固に固定
されるものである。 Therefore, in the above-mentioned grommet, the ring body 7 made of a soft material is provided on the lower surface of the flange body 1, the upper ends of both leg bodies 8, 8 are free ends, and tapered surfaces 14, 14, and 14 are provided on the upper outer surface. 14
By forming the claw parts 10, 10 having
At the initial stage of screwing in the screw 22, the upper ends of the claws 10, 10 open outward and press the peripheral wall of the mounting hole 19 (see arrows As the first panel 18 is pressed against the ring body 7, the upper tapered surfaces 14, 14 bite into the first panel 18, so that the ring body 7
Slip resistance and upper tapered surface 14, 14 and 1
4 and 14 into the first panel 18 prevents the grommet from co-rotating with the screw. Also, as the screw progresses, the 10th
As shown in the figure, the lower portions of the legs 8, 8 expand outward (see arrows Y, Y), and as a result, the upper tapered surfaces 14, 14 and 14, 14 forcefully press the first panel 18 due to the lever principle. Press (see arrows Z, Z),
As a result, the ring body 7 is strongly pressed against the first panel 18 and the sliding resistance increases, so that co-rotation is more strongly prevented. Further, the grommet is firmly fixed to the first panel 18 by the biting.
この場合、本実施例のグロメツトにおいては、
フランジ体1に四角透孔3,3を形成し、かつこ
れら透孔3,3内に爪部10,10の上端部を延
出させると共に、これら延出部10a,10aの
外側面10b,10bと透孔3,3の外側周壁部
3a,3aとを所定間隔離間させたことにより、
第7図に示すようにセルフタツピング時に爪部1
0,10の上部が一定量外側方に広がつた時点で
上記延出部10a,10aの外側面10b,10
bが透孔3,3の外側周壁部3a,3aに当り、
それ以上爪部10,10の上部が外側方に広がる
ことが防止される。従つて、第1パネル18の厚
さに関係なく爪部10,10の広がりは一定量に
規制され、スクリユー進入路の寸法が一定とな
り、これによつてスクリユー22による爪部1
0,10の内面へのねじ山形成深さ及び爪部1
0,10の第1パネル18への食い込み量が一定
となるため、スクリユー22とグロメツトとの結
合強度、スクリユー22のねじ込み最後における
タツピング破壊トルクを第1パネル18の厚さに
かかわらず常に一定量以上確保できる。また、爪
部10,10の広がりは延出部10a,10aの
外側面10b,10bと透孔3,3の外側周壁部
3a,3aとの間隔の長さによつて自由に調整で
きるため所望量のスクリユー22とグロメツトと
の結合強度及びタツピング破壊トルクを得ること
ができる。更に、爪部10,10外面に四角溝部
11,11を形成したことにより、この溝部1
1,11が肉盗みの役割を果たし、ヒケを防止し
ている。すなわち、ヒケとは成形品全体の中で特
に肉厚の部分があると樹脂が冷えて固まる時間が
肉薄部より遅れることによる樹脂の収縮減少であ
るが、本実施例においては爪部10,10に溝部
11を形成したことにより、爪部10,10全体
が肉厚になるのを防ぎ、ヒケを防止して、爪部1
0,10の幅方向中間部の厚さを一定にしてい
る。また、爪部10,10に溝部11,11を形
成し、その両側に突板12,12を設け、この突
板12,12を第1パネル18に食い込ませるよ
うにしたことにより、パネルへの食い込み力を調
整し、板厚による食い込み量の変動幅を小さくし
ているものである。 In this case, in the grommet of this example,
Square through holes 3, 3 are formed in the flange body 1, and upper ends of the claw portions 10, 10 are extended into these through holes 3, 3, and outer surfaces 10b, 10b of these extending portions 10a, 10a are formed. By separating the outer circumferential walls 3a, 3a of the through holes 3, 3 by a predetermined distance,
As shown in Fig. 7, when self-tapping, the claw part 1
0, 10, the outer surfaces 10b, 10 of the extending portions 10a, 10a expand outward by a certain amount.
b hits the outer peripheral wall portions 3a, 3a of the through holes 3, 3,
The upper portions of the claw portions 10, 10 are prevented from expanding outward any further. Therefore, regardless of the thickness of the first panel 18, the spread of the claws 10, 10 is regulated to a certain amount, and the dimensions of the screw entry path are constant, so that the screw 22 can prevent the claws 1 from spreading.
Thread forming depth on the inner surface of 0,10 and claw part 1
Since the amount of biting into the first panel 18 of 0 and 10 is constant, the bonding strength between the screw 22 and the grommet and the tapping breaking torque at the end of screwing the screw 22 are always constant regardless of the thickness of the first panel 18. More than that can be secured. Further, the spread of the claw portions 10, 10 can be freely adjusted as desired by adjusting the length of the interval between the outer surfaces 10b, 10b of the extension portions 10a, 10a and the outer circumferential walls 3a, 3a of the through holes 3, 3. It is possible to obtain a certain amount of bond strength and tapping breaking torque between the screw 22 and the grommet. Furthermore, by forming square grooves 11, 11 on the outer surfaces of the claws 10, 10, this groove 1
Nos. 1 and 11 play the role of meat stealers and prevent sink marks. In other words, a sink mark is a decrease in shrinkage of the resin due to the time for the resin to cool and harden later than in the thin parts when there is a particularly thick part in the entire molded product. By forming the groove part 11 in the claw part 1, it is possible to prevent the claw parts 10, 10 from becoming thick as a whole and prevent sink marks.
The thickness of the middle part in the width direction of 0 and 10 is kept constant. In addition, grooves 11, 11 are formed in the claws 10, 10, veneers 12, 12 are provided on both sides of the grooves 12, 12, and the veneers 12, 12 are made to bite into the first panel 18, thereby reducing the force of biting into the panel. is adjusted to reduce the range of variation in the amount of penetration due to plate thickness.
なお、上記実施例においては、フランジ体下面
に軟質材を配設したことによつてすべり抵抗が増
大し、共回りをより効果的に防止し得たものであ
るが、フランジ体下面に軟質材を設けないものも
もちろん本発明に包含される。この場合、軟質材
の種類に限定はないが、ナイロン系エラストマー
等のすべり抵抗の大きいものが好適に使用され
る。また、軟質材の配設手段も限定されないが、
軟質材からなるリング体をフランジ体下部に配設
したり、二色成型によつて軟質材をフランジ体下
部に設ける方法等が好適に採用される。 In the above example, the sliding resistance was increased by placing a soft material on the lower surface of the flange body, and co-rotation could be more effectively prevented. Of course, the present invention also includes a structure in which the above is not provided. In this case, the type of soft material is not limited, but a material with high slip resistance such as a nylon elastomer is preferably used. Furthermore, the means for arranging the soft material is not limited, but
Preferred methods include arranging a ring body made of a soft material under the flange body, or providing a soft material under the flange body by two-color molding.
なお、上記実施例では脚体を2個形成したが、
3個以上形成してもよく、その他の構成について
も本考案の要旨を逸脱しない範囲で種々変更して
差支えない。 In addition, in the above example, two legs were formed, but
Three or more may be formed, and other configurations may be modified in various ways without departing from the gist of the present invention.
更に、本考案のスクリユーグロメツトは、第1
1図或いは第12図に示した如き角穴用の構成と
することもできる。すなわち、第11図のスクリ
ユーグロメツトは、スクリユー挿通孔及び透孔
3′,3′を有する角板状フランジ体1′の下端に
角穴挿入用の脚体8′,8′を連設すると共に、こ
れら脚体8′,8′に第1〜5図と同様の爪部1
0′,10′を設けたものであり、これら爪部1
0′,10′の作用効果は上記と同様である。ま
た、第12図のスクリユーグロメツトは、第11
図と同様のフランジ体1′の下端に有底角筒状の
角穴用挿入体23を連設すると共に、この挿入体
23の互に対向する2つの側壁部に上記と同様の
爪部10′,10′を設け、爪部10′,10′を設
けていない2つの側壁部の外面に三角山型の係合
突起24,24を形成したものであり、これら爪
部10′,10′の作用効果も上記と同様である。
また、係合突起24,24は、爪部10′,1
0′が形成されている窓部9′,9′の存在によつ
て挿入体23,23の上部23a,23aが内方
に撓むので、簡単な構造の仮止め用突起として有
効であり、複雑な仮止め構造を不要とすることが
できる。更に、スクリユーによるセルフタツピン
グによつて挿入体23,23の上部23a,23
aが外方に膨出するので、係合突起24,24が
パネルに強く押し付けられ、グロメツトとパネル
とが強固に連結される。 Furthermore, the screw grommet of the present invention has a first
It is also possible to adopt a configuration for a square hole as shown in FIG. 1 or FIG. 12. That is, in the screw grommet shown in FIG. 11, legs 8', 8' for insertion into square holes are connected to the lower end of a square plate-shaped flange body 1' having screw insertion holes and through holes 3', 3'. At the same time, claw portions 1 similar to those shown in FIGS. 1 to 5 are provided on these legs 8', 8'.
0', 10' are provided, and these claw parts 1
The effects of 0' and 10' are the same as above. Also, the screw grommet in Fig. 12 is
A rectangular hole insert 23 in the form of a rectangular tube with a bottom is provided in series at the lower end of the flange body 1' similar to the one shown in the figure, and claw portions 10 similar to those described above are provided on two mutually opposing side walls of the insert 23. ', 10' are provided, and triangular mountain-shaped engagement protrusions 24, 24 are formed on the outer surfaces of the two side wall parts where the claw parts 10', 10' are not provided, and these claw parts 10', 10' The action and effect of is also the same as above.
Further, the engaging protrusions 24, 24 are connected to the claw portions 10', 1
Since the upper portions 23a, 23a of the inserts 23, 23 are bent inward due to the presence of the windows 9', 9' in which the openings 9' are formed, they are effective as temporary fixing protrusions with a simple structure. A complicated temporary fixing structure can be made unnecessary. Further, the upper parts 23a, 23 of the inserts 23, 23 are removed by self-tapping with the screw.
Since a bulges outward, the engaging protrusions 24, 24 are strongly pressed against the panel, and the grommet and the panel are firmly connected.
以上説明したように、本考案のスクリユーグロ
メツトは上述した構成としたことにより、爪部の
外側方への広がり量を一定量に規制し、セルフタ
ツピング時におけるグロメツトへのねじ山形成深
さを一定量以上確保できるので、被取付物の厚さ
にかかわらず常に一定量以上のスクリユーとグロ
メツトとの連結強度、破壊トルクを確保できるた
め同一のグロメツトを種々厚さの被取付物に広く
使用することができ、非常に便利なものである。
As explained above, the screw grommet of the present invention has the above-described structure, thereby regulating the amount of outward spread of the claw portion to a certain amount, and reducing the depth of thread formation on the grommet during self-tapping. Since it is possible to ensure a certain amount or more of the screw and grommet connection strength and breaking torque regardless of the thickness of the object to be attached, the same grommet can be used widely on objects of various thicknesses. It can be used and is very convenient.
また、本考案のスクリユーグロメツトはスクリ
ユーと共回りすることが確実に防止されるので、
円形の取付孔に対しても良好に適用される。この
場合、本考案のグロメツトは短軸であり、比較的
短いスクリユーを使用し得るので、被取付パネル
の裏側に広いスペースがない場合でも使用し得、
かつスクリユー回転のための作業時間も短縮し、
作業効率を向上させることができるものである。 In addition, since the screw grommet of the present invention is reliably prevented from rotating together with the screw,
Also suitable for circular mounting holes. In this case, the grommet of the present invention has a short axis and a relatively short screw can be used, so it can be used even when there is not a large space behind the panel to which it is attached.
In addition, the work time for screw rotation is shortened,
This can improve work efficiency.
第1図乃至第6図は本考案の一実施例を示すも
ので、第1図は正面図、第2図は側面図、第3図
は平面図、第4図は底面図、第5図は第3図V−
V線に沿つた断面図、第6図は第3図−線に
沿つた一部省略断面図、第7図は同例のスクリユ
ーグロメツトをパネルの取付孔に仮止めした状態
を示す断面図、第8図は同グロメツトの脚体を取
付孔に挿入する状態を示す説明図、第9図は同グ
ロメツトを用いてパネル相互を連結するときのス
クリユー螺入初期の状態を示す断面図、第10図
は同グロメツトを用いてパネル相互を連結した状
態を示す断面図、第11図及び第12図はそれぞ
れ本考案の他の実施例を示す斜視図、第13図は
従来の丸穴用スクリユーグロメツトを示す断面
図、第14図は同グロメツトを用いてパネル相互
を連結した状態を示す断面図、第15図乃至第1
7図は丸穴用スクリユーグロメツトの一例を示す
もので、第15図は正面図、第16図は側面図、
第17図は縦断面図、第18図は同グロメツトを
用いてパネル相互を連結するときのスクリユー螺
入初期の状態を示す断面図、第19図は同グロメ
ツトを用いてパネル相互を連結した状態を示す断
面図である。
1……フランジ体、2……スクリユー挿通孔、
3……四角透孔、3a……外側周壁部、8……脚
体(挿入体)、9……四角窓部、10……爪部、
10a……延出部、10b……外側面、14……
上側テーパ面、18……第1パネル、19……取
付孔、20……第2パネル、21……取付孔、2
2……スクリユー、23……挿入体。
Figures 1 to 6 show an embodiment of the present invention, with Figure 1 being a front view, Figure 2 being a side view, Figure 3 being a plan view, Figure 4 being a bottom view, and Figure 5 being a bottom view. is Figure 3 V-
6 is a partially omitted sectional view taken along line V in FIG. 3, and FIG. 7 is a sectional view showing the screw grommet of the same example temporarily fixed in the mounting hole of the panel. 8 is an explanatory view showing the state in which the legs of the grommet are inserted into the mounting holes, and FIG. 9 is a sectional view showing the initial state of screwing in when connecting panels using the same grommet. Fig. 10 is a sectional view showing a state in which the panels are connected to each other using the same grommet, Figs. 11 and 12 are perspective views showing other embodiments of the present invention, and Fig. 13 is a conventional grommet for round holes. 14 is a sectional view showing a screw grommet, and FIG. 14 is a sectional view showing a state in which panels are connected to each other using the same grommet.
Figure 7 shows an example of a screw grommet for a round hole, Figure 15 is a front view, Figure 16 is a side view,
Fig. 17 is a longitudinal sectional view, Fig. 18 is a sectional view showing the initial state of screwing in when the same grommet is used to connect panels together, and Fig. 19 is a state in which the panels are connected to each other using the same grommet. FIG. 1...Flange body, 2...Screw insertion hole,
3... Square through hole, 3a... Outer peripheral wall part, 8... Leg body (insert body), 9... Square window part, 10... Claw part,
10a...extending portion, 10b...outer surface, 14...
Upper tapered surface, 18...First panel, 19...Mounting hole, 20...Second panel, 21...Mounting hole, 2
2...screw, 23...insert body.
Claims (1)
に、このフランジ体の下端に被取付物の取付孔に
挿入される挿入体を連設し、この挿入体に上記ス
クリユー挿通孔と連通してスクリユーの軸部が進
入するスクリユー進入路を形成し、かつ挿入体の
上記スクリユー進入路周壁部に複数の窓部を穿設
し、これら窓部の底壁から上方に向けて上端部を
自由端とした爪部を突設すると共に、上記各爪部
の外側面長さ方向中間部を外側方に膨出させて該
爪部の外側面上部にそれぞれ下方に向かうに従い
漸次外側方に突出するテーパ面を形成してなり、
上記挿入体を被取付物の取付孔に挿入して該被取
付物を上記フランジ体の下面に当接し、スクリユ
ーの軸部を上記スクリユー挿通孔を通して上記ス
クリユー進入路に進入させ、このスクリユーを回
転させて、スクリユーの軸部の外周に形成された
ねじ部が上記挿入体の各爪部内面に該ねじ部に相
応したねじ部を螺設しつつスクリユー軸部を各爪
部間に進出させることにより、それぞれ外側方に
広げられた各爪部の上記テーパ面で被取付物を押
圧して被取付物を固定するようにしたスクリユー
グロメツトであつて、上記フランジ体に上記各爪
部の上方に存して上記窓部と連通する透孔を形成
すると共に、各爪部の上端部を上記透孔内に該爪
部の外側面と透孔の外側周壁部とが所定間隔離間
した状態で延出させてなることを特徴とするスク
リユーグロメツト。 A screw insertion hole is bored in the flange body, and an insert body that is inserted into the mounting hole of the object to be attached is connected to the lower end of the flange body, and the insert body communicates with the screw insertion hole to insert the shaft of the screw. A screw entrance path into which the screw enters is formed, and a plurality of windows are bored in the peripheral wall of the screw entrance path of the insert body, and the upper end is a free end extending upward from the bottom wall of these windows. and a longitudinally intermediate portion of the outer surface of each of the claw portions is bulged outward to form a tapered surface that gradually protrudes outward as it goes downward on the upper outer surface of each of the claw portions. Then,
Insert the insert into the mounting hole of the object to be mounted, bring the object into contact with the lower surface of the flange, enter the shaft of the screw into the screw entrance path through the screw insertion hole, and rotate the screw. Then, the threaded portion formed on the outer periphery of the shaft portion of the screw threads a threaded portion corresponding to the threaded portion on the inner surface of each claw portion of the insert body, and the screw shaft portion is advanced between the respective claw portions. This is a screw grommet that fixes the object by pressing the object to be attached with the tapered surface of each of the claws expanded outward, wherein each of the claws is attached to the flange body. A through hole is formed in the upper part and communicates with the window part, and the upper end of each claw part is placed in the through hole with a predetermined distance between the outer surface of the claw part and the outer circumferential wall of the through hole. A screw grommet characterized by extending.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988044431U JPH0527689Y2 (en) | 1988-04-01 | 1988-04-01 | |
KR2019880014983U KR920007083Y1 (en) | 1988-04-01 | 1988-09-09 | Fixing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988044431U JPH0527689Y2 (en) | 1988-04-01 | 1988-04-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01148112U JPH01148112U (en) | 1989-10-13 |
JPH0527689Y2 true JPH0527689Y2 (en) | 1993-07-15 |
Family
ID=31270789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988044431U Expired - Lifetime JPH0527689Y2 (en) | 1988-04-01 | 1988-04-01 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPH0527689Y2 (en) |
KR (1) | KR920007083Y1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2551286Y2 (en) * | 1990-10-23 | 1997-10-22 | 株式会社東郷製作所 | Grommet |
-
1988
- 1988-04-01 JP JP1988044431U patent/JPH0527689Y2/ja not_active Expired - Lifetime
- 1988-09-09 KR KR2019880014983U patent/KR920007083Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR920007083Y1 (en) | 1992-10-02 |
JPH01148112U (en) | 1989-10-13 |
KR890021219U (en) | 1989-11-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5224805A (en) | Anchoring plug | |
US4430033A (en) | Sheet metal insert for foam plastic | |
US20060120822A1 (en) | Self-drilling hollow wall anchor | |
JPH0435612Y2 (en) | ||
CA2043912A1 (en) | Self-drilling fastener for plasterboard wall | |
US4943195A (en) | Expansible anchoring plug assembly | |
JP2960339B2 (en) | Screw fixing aid | |
CA1073252A (en) | Fasteners | |
CA1062517A (en) | Expansion plug | |
JPH0527689Y2 (en) | ||
US5688090A (en) | Screw assembly | |
US4636122A (en) | Joining and mounting device | |
CA2296684C (en) | Screw tipped anchor assembly | |
JPS603377Y2 (en) | expansion anchor | |
JPS5854813Y2 (en) | Harness fixing device | |
GB2576956A (en) | Dowel fasteners | |
JPH0334492Y2 (en) | ||
JPS587849Y2 (en) | Insulation fastener | |
JPH0125765Y2 (en) | ||
JPH0420088B2 (en) | ||
GB2044876A (en) | Fastening means | |
US11680598B2 (en) | Fixing device | |
GB2111157A (en) | Improvements to screws | |
JPH0714649Y2 (en) | Screw fastening structure | |
KR200266066Y1 (en) | a foundation bolt |