JP2003113825A - Elastic fastening tool - Google Patents
Elastic fastening toolInfo
- Publication number
- JP2003113825A JP2003113825A JP2001308981A JP2001308981A JP2003113825A JP 2003113825 A JP2003113825 A JP 2003113825A JP 2001308981 A JP2001308981 A JP 2001308981A JP 2001308981 A JP2001308981 A JP 2001308981A JP 2003113825 A JP2003113825 A JP 2003113825A
- Authority
- JP
- Japan
- Prior art keywords
- tubular portion
- flange
- elastomer
- female screw
- fastener
- 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.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 38
- 239000000806 elastomer Substances 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 18
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004952 Polyamide Substances 0.000 claims abstract description 4
- 229920002647 polyamide Polymers 0.000 claims abstract description 4
- 229920000728 polyester Polymers 0.000 claims abstract description 4
- 229920005668 polycarbonate resin Polymers 0.000 claims abstract description 3
- 239000004431 polycarbonate resin Substances 0.000 claims abstract description 3
- 239000004417 polycarbonate Substances 0.000 claims description 11
- 239000013013 elastic material Substances 0.000 claims description 9
- 229920000515 polycarbonate Polymers 0.000 claims description 8
- 230000004927 fusion Effects 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 229920000178 Acrylic resin Polymers 0.000 claims description 3
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920006311 Urethane elastomer Polymers 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 238000000465 moulding Methods 0.000 abstract description 12
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 229920001084 poly(chloroprene) Polymers 0.000 description 12
- 239000002184 metal Substances 0.000 description 9
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 7
- 238000013016 damping Methods 0.000 description 4
- 229920006351 engineering plastic Polymers 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010008 shearing 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
- F16B29/00—Screwed connection with deformation of nut or auxiliary member while fastening
-
- 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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/061—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve of the buckling type
-
- 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
- F16B33/00—Features common to bolt and nut
- F16B33/006—Non-metallic fasteners using screw-thread
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2001/00—Articles provided with screw threads
- B29L2001/005—Nuts
-
- 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
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
- F16B5/0241—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread with the possibility for the connection to absorb deformation, e.g. thermal or vibrational
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、パネル等の取付部材に
一方向から締結することのできるブラインドナットとし
て使用できる弾性締結具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elastic fastener which can be used as a blind nut which can be fastened to a mounting member such as a panel from one direction.
【０００２】[0002]
【従来の技術】中空の管状部と、その管状部の一端側に
形成された雌ねじ部と、管状部の端部に形成されたフラ
ンジから成り、取付部材の穴に管状部を挿入した状態で
管状部を座屈変形してその座屈変形部分とフランジとに
より取付部材に締結するように構成した金属製のブライ
ンドナットはよく知られている（例えば、実開昭５９−
１４６６０７号公報）。ブラインドナットは、作業が一
方向から行えるので、裏側へ手の届かない、例えば、パ
ネル等の被取付部材に締結するのに便利である。被取付
部材に締結されたブラインドナットには、ボルトを螺入
することができ、頭付きボルトを雌ねじ部に螺入するこ
とによって、装飾部材等の部材を被取付部材に取付ける
ことができる。金属製ブラインドナットではない、ブラ
インドナット式弾性締結具が、特開平１１−２２３２０
７号公報に開示されている。この弾性締結具は、中空の
管状部と、管状部の一端の側に設けられた雌ねじ部と、
管状部の他端の側に形成されたフランジとから成り、管
状部とフランジが弾性材で成り、管状部とフランジがク
ロロプレンゴム等の弾性材で形成されているので、金属
製のブラインドナットと比較すると耐振動性、水密性の
点で良好な特性を有する。2. Description of the Related Art A hollow tubular portion, an internal thread portion formed at one end of the tubular portion, and a flange formed at the end portion of the tubular portion. The tubular portion is inserted into a hole of a mounting member. A metal blind nut configured to buckle and deform a tubular portion and to fasten the buckling deformed portion and a flange to a mounting member is well known (for example, Japanese Utility Model Laid-Open No. 59-59).
146607). Since the blind nut can be worked from one direction, it is convenient to fasten it to a member to be attached, such as a panel, which cannot be reached on the back side. A bolt can be screwed into the blind nut fastened to the mounted member, and a member such as a decorative member can be mounted on the mounted member by screwing the headed bolt into the female screw portion. A blind nut type elastic fastener, which is not a metal blind nut, is disclosed in JP-A-11-22320.
No. 7 publication. This elastic fastener has a hollow tubular portion, a female screw portion provided on one end side of the tubular portion,
It consists of a flange formed on the other end side of the tubular part, the tubular part and the flange are made of an elastic material, and the tubular part and the flange are made of an elastic material such as chloroprene rubber. By comparison, it has good properties in terms of vibration resistance and watertightness.
【０００３】[0003]
【発明が解決しようとする課題】特開平１１−２２３２
０７号公報の弾性締結具は、管状部とフランジがクロロ
プレンゴムで成るが、雌ねじ部が金属製ナットによって
形成されているため、軽量化の点で改良の余地があり、
金属とゴムとの混在により、リサイクルには不向きであ
る。雌ねじ部を管状部に固着するのには、金属とゴムで
あるため、接着剤を用いる必要がある。管状部とフラン
ジがクロロプレンゴムであるため、成形時間が長く、ま
た、耐オゾン性が低い。[Patent Document 1] Japanese Patent Laid-Open No. 11-2322
Although the tubular fastener and the flange are made of chloroprene rubber in the elastic fastener of JP-A-07, there is room for improvement in terms of weight reduction because the female screw portion is formed of a metal nut.
Not suitable for recycling due to the mixture of metal and rubber. In order to fix the female screw portion to the tubular portion, it is necessary to use an adhesive because it is metal and rubber. Since the tubular portion and the flange are made of chloroprene rubber, the molding time is long and the ozone resistance is low.
【０００４】従って、本発明は、軽量化を図ることがで
き、接着剤を不要にし、成形時間を短縮でき、耐オゾン
性を向上し、耐振動性を向上する弾性締結具を提供する
ことにある。Therefore, the present invention provides an elastic fastener which can be reduced in weight, eliminates the need for an adhesive, shortens the molding time, improves ozone resistance, and improves vibration resistance. is there.
【０００５】[0005]
【課題を解決するための手段】かかる目的を達成するた
め、本発明は、中空の管状部と、該管状部の一端の側に
設けられた雌ねじ部と、前記管状部の他端の側に形成さ
れたフランジとから成り、前記管状部と前記フランジが
弾性材で成る弾性締結具であって、前記管状部と前記フ
ランジとは、スチレン系エラストマー、ポリアミド系エ
ラストマー、ポリエステル系エラストマー、ウレタン系
エラストマー、及びオレフィン系エラストマーから選択
されるエラストマー材料で一体成形され、前記雌ねじ部
は、ポリカーボネート樹脂、スチレン系樹脂、アクリル
系樹脂、ポリエステル系樹脂、ナイロン系樹脂、変性Ｐ
ＰＥ樹脂、及びポリカーボネート系のポリマーアロイ
（ポリブレンド）から選択された硬質樹脂材料によって
ナット形状に成形され、前記雌ねじ部は、前記管状部の
穴の中に一体的に固着されていることを特徴とする弾性
締結具を提供する。管状部とフランジが、特定のエラス
トマー材料で形成され、雌ねじ部が特定の硬質樹脂材料
（高強度のエンジニアリングプラスチック）で形成され
ており、金属製ナットを使用しないため、軽量化が達成
でき（従来の弾性締結具に比べて、１／２以下の重
量）、雌ねじ部を管状部に接合するのに熱融着を使用で
きるので接着剤が不要になり、管状部とフランジの成形
時間はクロロプレンゴムの成形に比較して大きく短縮で
き（従来の弾性締結具の１／３以下の時間）、また、耐
オゾン性も向上し、更に、耐振動性においても向上する
ことも分かった。In order to achieve such an object, the present invention provides a hollow tubular portion, a female thread portion provided on one end side of the tubular portion, and another female thread portion on the other end side of the tubular portion. An elastic fastener comprising a formed flange, wherein the tubular portion and the flange are made of an elastic material, wherein the tubular portion and the flange are a styrene elastomer, a polyamide elastomer, a polyester elastomer, and a urethane elastomer. , And an elastomer material selected from olefin elastomers, and the female thread portion is formed of polycarbonate resin, styrene resin, acrylic resin, polyester resin, nylon resin, modified P
A hard resin material selected from PE resin and a polycarbonate-based polymer alloy (polyblend) is molded into a nut shape, and the female screw portion is integrally fixed in the hole of the tubular portion. An elastic fastener is provided. The tubular part and the flange are made of a specific elastomer material, the female thread part is made of a specific hard resin material (high-strength engineering plastic), and since no metal nut is used, weight reduction (conventional) can be achieved. (Weight less than 1/2 of the elastic fasteners), and because heat fusion can be used to join the female threaded portion to the tubular portion, no adhesive is required, and the molding time for the tubular portion and the flange is chloroprene rubber. It was also found that it can be greatly shortened compared with the molding of (No. 1 time of the conventional elastic fastener), ozone resistance is also improved, and further vibration resistance is also improved.
【０００６】上記弾性締結具において、フランジ及び管
状部は、ＪＩＳ−Ａ硬度が、４０〜９０度のエラストマ
ー材料で成るのが好ましい。また、フランジ及び管状部
は射出成形によって一体成形され、別に、雌ねじ部も射
出成形により一体成形され、雌ねじ部は、管状部に熱融
着によって接合される。In the elastic fastener described above, the flange and the tubular portion are preferably made of an elastomer material having JIS-A hardness of 40 to 90 degrees. Further, the flange and the tubular portion are integrally molded by injection molding, the female screw portion is also integrally molded by injection molding, and the female screw portion is joined to the tubular portion by heat fusion.
【０００７】[0007]
【発明の実施の形態】以下、本発明の実施例について、
図面を参照しながら説明する。図１〜図４には本発明に
係るブラインドナット式の弾性締結具１が示され、図５
及び図６には弾性締結具１の雌ねじ部２が示されてい
る。図７は、弾性締結具１を、車体パネル等の被取付部
材３に、頭付きボルト５の螺入によって弾性締結具を変
形させて固着するとともに、ブラケットや取付パネル等
の取付部材６を締結具１にボルト５によって固着した様
子を示している。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.
A description will be given with reference to the drawings. 1 to 4 show a blind nut type elastic fastener 1 according to the present invention.
And FIG. 6 shows the female screw portion 2 of the elastic fastener 1. FIG. 7 shows that the elastic fastener 1 is deformed and fixed to a mounted member 3 such as a vehicle body panel by screwing a headed bolt 5, and a mounting member 6 such as a bracket or a mounting panel is fastened. It shows a state of being fixed to the tool 1 by the bolt 5.
【０００８】図１〜図４において、弾性締結具１は、中
空の円筒の管状部７と、管状部７の一端（下端）の側に
設けられた雌ねじ部２と、管状部の他端（上端）の側に
形成された円形のフランジ９とから成る。管状部７及び
フランジ９の形状は円形に限るものではなく、角形状で
あってもよい。管状部７とフランジ９は弾性材で一体成
形されており、締結具１全体を弾性にしている。管状部
７とフランジ９とを形成する弾性材料は、スチレン系エ
ラストマー、ポリアミド系エラストマー、ポリエステル
系エラストマー、ウレタン系エラストマー、オレフィン
系エラストマーから選択されるエラストマー材料であ
る。管状部７とフランジ９は、これらのエラストマー材
料から選択されたエラストマー材料によって一体成形さ
れる。管状部７とフランジ９は、例えば、射出成形によ
って成形される。1 to 4, an elastic fastener 1 comprises a hollow cylindrical tubular portion 7, an internal thread portion 2 provided on one end (lower end) side of the tubular portion 7, and the other end of the tubular portion ( And a circular flange 9 formed on the upper end side. The shapes of the tubular portion 7 and the flange 9 are not limited to circular shapes, and may be angular shapes. The tubular portion 7 and the flange 9 are integrally formed of an elastic material to make the entire fastener 1 elastic. The elastic material forming the tubular portion 7 and the flange 9 is an elastomer material selected from styrene elastomer, polyamide elastomer, polyester elastomer, urethane elastomer, and olefin elastomer. The tubular portion 7 and the flange 9 are integrally molded with an elastomer material selected from these elastomer materials. The tubular portion 7 and the flange 9 are molded by injection molding, for example.
【０００９】管状部７の長さは、被取付部材３へ固着す
るのに適するように任意にできる。ボルト５が雌ねじ部
２をフランジ９の側に引上げることによって管状部７の
一部が拡膨させられ、その拡膨部分とフランジ９とが被
取付部材３を挟持して、締結具１が被取付部材３へ固着
される。フランジ９及び管状部７は、ＪＩＳ−Ａ硬度が
４０〜９０度のエラストマー材料で形成されるのが好ま
しい。このエラストマー成形は、クロロプレンゴムの場
合の成形よりも成形時間が大幅に短縮できる。クロロプ
レンゴムの場合、軟化時間が非常に長く、そのため成形
時間がかかってしまうのに対して、本発明に用いるエラ
ストマーの場合、時間短縮できる。実際に、１／３以下
に短縮できた。また、クロロプレンゴムに比べて、エラ
ストマー材料で成る管状部７及びフランジ９は、耐オゾ
ン性が高い。実験では、本発明の締結具とクロロプレン
ゴム製の従来の締結具とを、被取付部材への締結状態
で、９６時間に渡って、温度４０±２℃に保ち、５０±
５ｐｐｈｍの濃度のオゾンを与えたところ、エラストマ
ー製の本発明の締結具には亀裂は一切現れなかったのに
対して、従来のクロロプレンゴム製（ＨｓＡ７０：ショ
ア硬さＡ＝７０）の締結具には、拡膨部分の根元部分に
亀裂が発生した。また、後述のように、耐振動性におい
ても、クロロプレンゴム製の締結具よりも優れている。The length of the tubular portion 7 can be arbitrarily selected so as to be fixed to the member 3 to be attached. A part of the tubular portion 7 is expanded by the bolt 5 pulling up the internal thread portion 2 to the side of the flange 9, and the expanded portion and the flange 9 sandwich the mounted member 3, and the fastener 1 is It is fixed to the attached member 3. The flange 9 and the tubular portion 7 are preferably made of an elastomer material having a JIS-A hardness of 40 to 90 degrees. This elastomer molding can significantly shorten the molding time as compared with molding with chloroprene rubber. In the case of chloroprene rubber, the softening time is very long and therefore the molding time is long, whereas in the case of the elastomer used in the present invention, the time can be shortened. Actually, it could be shortened to 1/3 or less. In addition, the tubular portion 7 and the flange 9 made of an elastomer material have higher ozone resistance than chloroprene rubber. In the experiment, the fastener of the present invention and the conventional fastener made of chloroprene rubber were kept at a temperature of 40 ± 2 ° C. for 96 hours in a state of being fastened to a member to be attached, and a temperature of 50 ± 2 ° C.
When ozone having a concentration of 5 pphm was applied, no cracks appeared in the fastener of the present invention made of elastomer, whereas in the fastener made of conventional chloroprene rubber (HsA70: Shore hardness A = 70). Cracked at the base of the expanded part. Further, as will be described later, it is also superior in vibration resistance to the fastener made of chloroprene rubber.
【００１０】雌ねじ部２は、管状部７及びフランジ９と
は別体に作られる。雌ねじ部２は、図３及び図４に示す
ように、管状部７の穴１０の中に埋め込まれている。図
４〜図６に示すように、雌ねじ部２は、横断面の外形が
真円でない形状（図示の例では、ほぼ六角）に形成され
て、管状部７に対して回転しない形状に形成されてい
る。内側には雌ねじ１１が切られており、ナット形状に
形成されている。雌ねじ部２は、管状部７を拡膨するよ
うに回転するボルト５のトルクに耐える強度を有する、
高い強度のエンジニアリングプラスチック材料で形成さ
れる。そのため、雌ねじ部２は、ポリカーボネート（Ｐ
Ｃ）樹脂、スチレン系樹脂、アクリル系樹脂、ポリエス
テル系樹脂、ナイロン系樹脂、変性ＰＰＥ樹脂及びポリ
カーボネート系のポリマーアロイ（ポリブレンド）から
選択された硬質樹脂材料によって一体成形される。ポリ
カーボネート系のポリマーアロイ（ポリブレンド）は、
ＰＣ／ＡＢＳ（ポリカーボネート／アクリルニトリルブ
タジエンスチレン）、ＰＣ／ＰＥＴ（ポリカーボネート
／ポリエチレンテレフタレート）、ＰＣ／ＰＢＴ（ポリ
カーボネート／ポリブチレンテレフタレート）から成
る。雌ねじ部２の成形には、例えば、射出成形を用いる
ことができる。The female screw portion 2 is formed separately from the tubular portion 7 and the flange 9. The female screw portion 2 is embedded in the hole 10 of the tubular portion 7, as shown in FIGS. 3 and 4. As shown in FIGS. 4 to 6, the female screw portion 2 is formed in a shape whose cross section has a non-circular outer shape (in the example shown, substantially hexagonal) and which is formed so as not to rotate with respect to the tubular portion 7. ing. A female screw 11 is cut inside and formed in a nut shape. The female screw portion 2 has strength enough to withstand the torque of the bolt 5 that rotates so as to expand the tubular portion 7.
Made of high strength engineering plastic material. Therefore, the female screw portion 2 is made of polycarbonate (P
C) It is integrally molded with a hard resin material selected from a resin, a styrene resin, an acrylic resin, a polyester resin, a nylon resin, a modified PPE resin and a polycarbonate polymer alloy (polyblend). Polycarbonate polymer alloy (polyblend) is
PC / ABS (polycarbonate / acrylonitrile butadiene styrene), PC / PET (polycarbonate / polyethylene terephthalate), PC / PBT (polycarbonate / polybutylene terephthalate). For molding the female screw portion 2, for example, injection molding can be used.
【００１１】フランジ９及び管状部７が一体成形され
て、雌ねじ部２が一体成形された後、あるいは、雌ねじ
部２が一体成形されて、フランジ９及び管状部７が一体
成形された後、雌ねじ部２は、管状部７の穴１０（図３
及び４）に、熱融着によって接合される。管状部７は、
上記の特定のエラストマー材料で成り、雌ねじ部２は、
上記の硬質樹脂材料（エンジニアリングプラスチック）
で成るため、雌ねじ部２は管状部７の内壁面に融着し易
く、加熱によって容易に融着し、その接合の強度も高く
維持される。従って、雌ねじ部２を管状部７に接合する
ための接着剤は一切不要になる。融着後の雌ねじ部２と
管状部７及びフランジ９とは、一体化してそのままブラ
インドナット式弾性締結具１として使用できる。本発明
のブラインドナット式弾性締結具１は、雌ねじ部２が特
定の硬質樹脂材料で形成されて金属製ナットを不要にし
ているので、締結具１の全体は顕著に軽量化される。実
際、１／２以下に軽量化することができた。After the flange 9 and the tubular portion 7 are integrally molded and the female screw portion 2 is integrally molded, or after the female screw portion 2 is integrally molded and the flange 9 and the tubular portion 7 are integrally molded, a female screw is formed. The part 2 has a hole 10 (see FIG. 3) in the tubular part 7.
And 4) by heat fusion. The tubular portion 7 is
It is made of the above specific elastomer material, and the internal thread portion 2 is
Hard resin material (engineering plastic)
Therefore, the female screw portion 2 is easily fused to the inner wall surface of the tubular portion 7 and easily fused by heating, and the strength of the joint is maintained high. Therefore, no adhesive is needed to join the female screw portion 2 to the tubular portion 7. The female screw portion 2, the tubular portion 7 and the flange 9 after fusion can be integrated and used as it is as the blind nut type elastic fastener 1. In the blind nut type elastic fastener 1 of the present invention, since the female screw portion 2 is formed of a specific hard resin material and a metal nut is not required, the entire fastener 1 is significantly reduced in weight. In fact, the weight could be reduced to less than 1/2.
【００１２】図７は、弾性締結具１を用いて、被取付部
材３に取付部材６を取付けた様子を示している。弾性締
結具１は、再利用可能なブラインドナットして使用され
る。先ず、被取付部材３の取付穴１３に、管状部７がフ
ランジ９が被取付部材に接面するまで挿入される。次
に、ブラケット等の取付部材６の取付穴１４にねじ軸部
１５挿入された頭付きボルト５が、締結具１の管状部７
の穴に挿入される。ボルト５のねじ軸部１５の先端が雌
ねじ部２のねじ部に達すると、ボルト５は軸芯回りに回
転させられて雌ねじ部２に螺入される。このボルト５の
回転によってボルト５は雌ねじ部２を進み、ボルト５の
頭部１７が取付部材６をフランジ９に強く押付けるよう
になる。更に、強力に、ボルト５を回転させると、ボル
ト５のねじ軸部１５が、螺合している雌ねじ部２を頭部
１７の側に引き寄せるように作用する。管状部７はエラ
ストマー材料すなわち弾性材で成るので、ボルト５の強
力な雌ねじ部２への引込み力が、管状部７に作用して、
雌ねじ部２と被取付部材３との間の管状部７の部分を符
号１８のように拡膨させる。FIG. 7 shows a state in which the mounting member 6 is mounted on the mounted member 3 using the elastic fastener 1. The elastic fastener 1 is used as a reusable blind nut. First, the tubular portion 7 is inserted into the mounting hole 13 of the mounted member 3 until the flange 9 comes into contact with the mounted member. Next, the headed bolt 5 inserted into the screw shaft portion 15 in the mounting hole 14 of the mounting member 6 such as a bracket is attached to the tubular portion 7 of the fastener 1.
Inserted in the hole. When the tip of the screw shaft portion 15 of the bolt 5 reaches the screw portion of the female screw portion 2, the bolt 5 is rotated around the shaft center and screwed into the female screw portion 2. By the rotation of the bolt 5, the bolt 5 advances along the female screw portion 2, and the head 17 of the bolt 5 strongly presses the mounting member 6 against the flange 9. Further, when the bolt 5 is strongly rotated, the screw shaft portion 15 of the bolt 5 acts so as to draw the female screw portion 2 that is screwed together toward the head portion 17 side. Since the tubular portion 7 is made of an elastomer material, that is, an elastic material, a strong pulling force of the bolt 5 to the internal thread portion 2 acts on the tubular portion 7,
A portion of the tubular portion 7 between the female screw portion 2 and the attached member 3 is expanded as indicated by reference numeral 18.
【００１３】この拡膨部分１８は、被取付部材３のフラ
ンジ９と反対側の縁部に強く当接する。従って、締結具
１は、拡膨部分１８とフランジ９によって被取付部材を
挟持する状態で、被取付部材３に固着される。他方、取
付部材６はボルト５の頭部１７とフランジ９の間に固く
挟持されている。これによって、取付部材６は被取付部
材３に取付けられる。取付部材６と被取付部材３の間に
は、エラストマー材料すなわち弾性材のフランジ９及び
管状部７があり、取付部材６に接触しているボルト５
は、雌ねじ部２に螺合しているが、被取付部材３との間
には弾性材の管状部７が介在しているので、被取付部材
３と取付部材６との間には、弾性材（エラストマー材
料）が介在し、高い防振効果を与え、振動やノイズの伝
達を防止するだけでなく、エラストマー材料で振動やノ
イズを吸収する効果もある。また、被取付部材３の取付
穴１３はエラストマー材料である管状部７の拡膨部分１
８によって密封されるので、液体や気体に対する高い密
封性が得られる。ボルト５を逆転させて締結具１から抜
き出せば、弾性締結具１は元の形状に復帰するので、再
利用もできる。更に、締結具１の耐用年数の経過後や不
良品の処分においても、雌ねじ部２が金属製ではないの
で、雌ねじ部を管状部及びフランジから分離することな
く、そのまま締結具を溶融するなどのリサイクルもでき
る。なお、被取付部材３が相当に厚い材料であり、管状
部７が被取付部材の取付穴の途中まで挿入できない場合
でも、ボルト５の強い螺入によって管状部７を取付穴の
中で拡膨させれば、その部分が取付穴に強力に密接して
固着することができ、これによっても取付部材６等の取
付けを行うことができる。The expanded portion 18 strongly abuts on the edge of the member 3 to be mounted, which is opposite to the flange 9. Therefore, the fastener 1 is fixed to the mounted member 3 in a state where the mounted member is sandwiched between the expanded portion 18 and the flange 9. On the other hand, the mounting member 6 is firmly sandwiched between the head 17 of the bolt 5 and the flange 9. As a result, the mounting member 6 is mounted on the mounted member 3. Between the mounting member 6 and the mounted member 3, there is a flange 9 and a tubular portion 7 made of an elastomer material, that is, an elastic material, and the bolt 5 that is in contact with the mounting member 6
Is threadedly engaged with the female screw portion 2, but since the tubular portion 7 made of an elastic material is interposed between the attached member 3 and the attached member 3, the elastic member is attached between the attached member 3 and the attaching member 6. The material (elastomer material) intervenes to give a high vibration-proof effect and not only prevent the transmission of vibration and noise, but also have the effect of absorbing the vibration and noise by the elastomer material. Further, the mounting hole 13 of the mounted member 3 is formed by the expanded portion 1 of the tubular portion 7 made of an elastomer material.
Since it is hermetically sealed by 8, high hermeticity against liquids and gases can be obtained. When the bolt 5 is reversed and pulled out from the fastener 1, the elastic fastener 1 returns to its original shape and can be reused. Further, even after the end of the useful life of the fastener 1 or when disposing of a defective product, the female screw portion 2 is not made of metal, so that the fastener is directly melted without separating the female screw portion from the tubular portion and the flange. It can also be recycled. Even if the member 3 to be mounted is a considerably thick material and the tubular portion 7 cannot be inserted into the mounting hole of the member to be mounted, the tubular portion 7 is expanded in the mounting hole by the strong screwing of the bolt 5. By doing so, that portion can be firmly and closely fixed to the mounting hole, and the mounting member 6 and the like can also be mounted by this.
【００１４】図８は、本発明による弾性締結具１と、従
来のクロロプレンゴム及び金属製雌ねじ部を用いた弾性
締結具との防振特性を示すグラフである。グラフ中の点
線は従来の弾性締結具の特性であり、実線は本発明の弾
性締結具の特性である。試験条件は、各締結具に加わる
振動方向が剪断方向（軸方向に直交する方向）で、入力
加速度が１Ｇで一定であり、１０Ｈｚ〜２０００Ｈｚの
周波数範囲において、周波数を１０分間で上昇するよう
にした。各締結具の質量を３３０ｇとし、４本止めし
た。FIG. 8 is a graph showing the vibration-damping characteristics of the elastic fastener 1 according to the present invention and a conventional elastic fastener using a chloroprene rubber and a metallic female screw portion. The dotted line in the graph is the characteristic of the conventional elastic fastener, and the solid line is the characteristic of the elastic fastener of the present invention. The test conditions were that the vibration direction applied to each fastener was the shear direction (direction orthogonal to the axial direction), the input acceleration was constant at 1 G, and the frequency was increased in 10 minutes in the frequency range of 10 Hz to 2000 Hz. did. The weight of each fastener was 330 g, and four fasteners were stopped.
【００１５】図８のグラフにおいて、従来のクロロプレ
ン製締結具は、出力加速度が変動しており、剪断方向に
おける防振性が安定していないことが分かる。特に、従
来のクロロプレン製締結具は、９００Ｈｚ付近において
大きく変動して、最大共振点が発生し、この点では防振
の効果が薄れている。これに対して、本発明の締結具
は、全体的に低い出力加速度であり、安定して良好な防
振特性を示している。従来の締結具のような、突出した
出力も現れていない。従って、本発明の締結具は高い防
振性を有することが分かる。なお、圧縮方向の場合の試
験ではほぼ同じ結果であった。In the graph of FIG. 8, it can be seen that the conventional chloroprene fastener has a variable output acceleration and is not stable in vibration isolation in the shearing direction. Particularly, in the conventional chloroprene fastener, the maximum resonance point is generated due to a large fluctuation in the vicinity of 900 Hz, and the vibration damping effect is weakened at this point. On the other hand, the fastener of the present invention has a low output acceleration as a whole and exhibits stable and good vibration damping characteristics. There is also no noticeable output, as with conventional fasteners. Therefore, it can be seen that the fastener of the present invention has high vibration isolation. The test in the compression direction showed almost the same result.
【００１６】[0016]
【発明の効果】本発明によれば、管状部とフランジが、
特定のエラストマー材料で形成され、雌ねじ部が特定の
硬質樹脂材料（高強度のエンジニアリングプラスチッ
ク）で形成されて、金属製ナットを使用しないため、従
来の弾性締結具に比べて、１／２以下の重量に軽量化で
き、また、雌ねじ部を管状部に接合するのに熱融着を使
用できるので接着剤が不要になり、更に、管状部とフラ
ンジの成形時間は、従来のクロロプレンゴム製の弾性締
結具の成形に比較して、１／３以下と大きく短縮でき
た。その上、オゾンによる亀裂の発生を抑えることがで
きて耐オゾン性も向上し、更に、耐振動性においても向
上した。According to the present invention, the tubular portion and the flange are
It is made of a specific elastomer material, the internal thread is made of a specific hard resin material (high-strength engineering plastic), and no metal nut is used. The weight can be reduced, and since heat fusion can be used to join the female screw part to the tubular part, no adhesive is required.In addition, the molding time of the tubular part and the flange is the same as that of conventional chloroprene rubber. Compared with molding of fasteners, it was greatly reduced to 1/3 or less. In addition, the generation of cracks due to ozone can be suppressed, ozone resistance is improved, and vibration resistance is also improved.
【図１】 本発明に係る弾性締結具の平面図である。FIG. 1 is a plan view of an elastic fastener according to the present invention.
【図２】 図１の弾性締結具の正面図である。2 is a front view of the elastic fastener of FIG. 1. FIG.
【図３】 図２の弾性締結具のＡ−Ａ線断面図である。3 is a cross-sectional view taken along the line AA of the elastic fastener of FIG.
【図４】 図２の弾性締結具のＢ−Ｂ線断面図である。4 is a cross-sectional view of the elastic fastener of FIG. 2 taken along the line BB.
【図５】 雌ねじ部の平面図である。FIG. 5 is a plan view of an internal thread portion.
【図６】 図５の雌ねじ部のＣ−Ｃ線断面図である。6 is a cross-sectional view taken along the line CC of the internal thread portion of FIG.
【図７】 本発明の弾性締結具の使用状態を示す断面図
である。FIG. 7 is a cross-sectional view showing a usage state of the elastic fastener of the present invention.
【図８】 本発明の弾性締結具と従来の弾性締結具の防
振特性を示すグラフである。FIG. 8 is a graph showing vibration damping characteristics of the elastic fastener of the present invention and the conventional elastic fastener.
１ 本発明の弾性締結具 ２ 雌ねじ部 ３ 被取付部材 ５ 頭付きボルト ６ 取付部材 ７ 管状部 ９ フランジ １０ 管状部の穴 １１ 雌ねじ １３ 被取付部材の取付穴 １４ 取付部材の取付穴 １５ ボルトのねじ軸部 １７ ボルトの頭部 1 Elastic fastener of the present invention 2 Female thread 3 Attached member 5 headed bolt 6 mounting members 7 Tubular part 9 flange 10 Hole in tubular part 11 female screw 13 Mounting holes for mounted members 14 Mounting member mounting holes 15 bolt screw shaft 17 bolt head
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ２９Ｋ 105:20 Ｂ２９Ｋ 105:20 Ｆターム(参考） 3J025 AA07 BA10 CA01 DA04 EA05 EA07 4F206 AA45 AD05 AD12 AG24 AH06 JA07 JB12 Front page continuation (51) Int.Cl. 7 Identification code FI theme code (reference) B29K 105: 20 B29K 105: 20 F term (reference) 3J025 AA07 BA10 CA01 DA04 EA05 EA07 4F206 AA45 AD05 AD12 AG24 AH06 JA07 JB12
Claims (3)
設けられた雌ねじ部と、前記管状部の他端の側に形成さ
れたフランジとから成り、前記管状部と前記フランジが
弾性材で成る弾性締結具において、 前記管状部と前記フランジとは、スチレン系エラストマ
ー、ポリアミド系エラストマー、ポリエステル系エラス
トマー、ウレタン系エラストマー、及びオレフィン系エ
ラストマーから選択されるエラストマー材料で一体成形
され、前記雌ねじ部は、ポリカーボネート樹脂、スチレ
ン系樹脂、アクリル系樹脂、ポリエステル系樹脂、ナイ
ロン系樹脂、変性ＰＰＥ樹脂、及びポリカーボネート系
のポリマーアロイから選択された硬質樹脂材料によって
ナット形状に成形され、前記雌ねじ部は、前記管状部の
穴の中に一体的に固着されていることを特徴とする弾性
締結具。1. A hollow tubular portion, an internal thread portion provided on one end side of the tubular portion, and a flange formed on the other end side of the tubular portion, wherein the tubular portion and the flange are In an elastic fastener made of an elastic material, the tubular portion and the flange are integrally molded with an elastomer material selected from a styrene elastomer, a polyamide elastomer, a polyester elastomer, a urethane elastomer, and an olefin elastomer, and The female thread portion is molded into a nut shape with a hard resin material selected from polycarbonate resin, styrene resin, acrylic resin, polyester resin, nylon resin, modified PPE resin, and polycarbonate polymer alloy. Is integrally fixed in the hole of the tubular part. Elastic fastener which is characterized.
フランジ及び管状部は、ＪＩＳ−Ａ硬度が４０〜９０度
の上記エラストマー材料で成ることを特徴とする締結
具。2. The fastener according to claim 1, wherein the flange and the tubular portion are made of the elastomer material having a JIS-A hardness of 40 to 90 degrees.
前記フランジ及び管状部は、射出成形によって一体成形
され、前記雌ねじ部は射出成形により一体成形され、該
雌ねじ部は、前記管状部に熱融着によって接合されてい
ることを特徴とする弾性締結具。3. The fastener according to claim 1 or 2, wherein
The flange and the tubular portion are integrally molded by injection molding, the female screw portion is integrally molded by injection molding, and the female screw portion is joined to the tubular portion by heat fusion. .
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001308981A JP2003113825A (en) | 2001-10-04 | 2001-10-04 | Elastic fastening tool |
| PCT/US2002/030736 WO2003029666A1 (en) | 2001-10-04 | 2002-09-27 | Elastic fastener |
| EP02800374A EP1440243A1 (en) | 2001-10-04 | 2002-09-27 | Elastic fastener |
| US10/812,383 US7059815B2 (en) | 2001-10-04 | 2004-03-29 | Elastic fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001308981A JP2003113825A (en) | 2001-10-04 | 2001-10-04 | Elastic fastening tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003113825A true JP2003113825A (en) | 2003-04-18 |
Family
ID=19128208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001308981A Pending JP2003113825A (en) | 2001-10-04 | 2001-10-04 | Elastic fastening tool |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1440243A1 (en) |
| JP (1) | JP2003113825A (en) |
| WO (1) | WO2003029666A1 (en) |
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| JP2019526752A (en) * | 2016-06-30 | 2019-09-19 | ボルホフ・フェルビンダンクシュテヒニーク・ゲゼルシャフト・ミット・ベシュレンクテン・ハフツング | Fastener with damping function |
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| DE10361481B4 (en) * | 2003-07-22 | 2006-08-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Modular interface to dampen mechanical vibrations, between structures in automotive and aerospace applications and the like, has a base with a tension support to take a loading link between them together with energy conversion actuators |
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| US5636953A (en) * | 1996-06-11 | 1997-06-10 | Trw Inc. | Roof rail attachment assembly |
| JP2001165133A (en) * | 1999-12-08 | 2001-06-19 | Aoyama Seisakusho Co Ltd | Grommet |
| DE20022001U1 (en) * | 2000-12-27 | 2001-03-22 | Reichard, Michael, 53227 Bonn | Multi-part dowel |
-
2001
- 2001-10-04 JP JP2001308981A patent/JP2003113825A/en active Pending
-
2002
- 2002-09-27 WO PCT/US2002/030736 patent/WO2003029666A1/en not_active Application Discontinuation
- 2002-09-27 EP EP02800374A patent/EP1440243A1/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101284428B1 (en) | 2006-12-05 | 2013-07-09 | 두산인프라코어 주식회사 | Insert for plastic pannel of heavy machine |
| JP2008144479A (en) * | 2006-12-11 | 2008-06-26 | Kumagai Gumi Co Ltd | Vibration damping member for damping vibration of baluster, baluster with the same, and balustrade unit with the same |
| KR101171795B1 (en) | 2011-06-15 | 2012-08-13 | 현대자동차주식회사 | Assembly apparatus of speaker for vehicle |
| US9140279B2 (en) | 2012-09-25 | 2015-09-22 | The Young Engineers, Inc. | Magnetic mount |
| US9732778B2 (en) | 2012-09-25 | 2017-08-15 | The Young Engineers, Inc. | Magnetic panel insert mount |
| JP2016217393A (en) * | 2015-05-18 | 2016-12-22 | 株式会社ＮｅｊｉＬａｗ | Fastening device |
| JP2019526752A (en) * | 2016-06-30 | 2019-09-19 | ボルホフ・フェルビンダンクシュテヒニーク・ゲゼルシャフト・ミット・ベシュレンクテン・ハフツング | Fastener with damping function |
| US11248645B2 (en) | 2016-06-30 | 2022-02-15 | Böllhoff Verbindungstechnik GmbH | Fastener having a damping function |
| JP7518059B2 (en) | 2021-12-28 | 2024-07-17 | フタバ産業株式会社 | Plastic parts with insert nuts |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1440243A1 (en) | 2004-07-28 |
| WO2003029666A1 (en) | 2003-04-10 |
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