WO1992006308A1 - Clip made of synthetic resin - Google Patents

Clip made of synthetic resin Download PDF

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Publication number
WO1992006308A1
WO1992006308A1 PCT/JP1991/001340 JP9101340W WO9206308A1 WO 1992006308 A1 WO1992006308 A1 WO 1992006308A1 JP 9101340 W JP9101340 W JP 9101340W WO 9206308 A1 WO9206308 A1 WO 9206308A1
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WO
WIPO (PCT)
Prior art keywords
clip
resin
synthetic resin
primary
thermoplastic polyester
Prior art date
Application number
PCT/JP1991/001340
Other languages
French (fr)
Japanese (ja)
Inventor
Masakazu Nakai
Original Assignee
Polyplastics Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Polyplastics Co., Ltd. filed Critical Polyplastics Co., Ltd.
Publication of WO1992006308A1 publication Critical patent/WO1992006308A1/en

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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
    • F16B21/08—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part
    • F16B21/086—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part the shank of the stud, pin or spigot having elevations, ribs, fins or prongs intended for deformation or tilting predominantly in a direction perpendicular to the direction of insertion
    • 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
    • F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
    • F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
    • F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship

Definitions

  • the present invention relates to a clip made of synthetic resin for attaching and locking an article or a part or the like to an opponent material using elastic repulsion in an automobile or the like, [Prior Art]
  • a clip that use elastic repulsion to attach and lock goods or parts to mating materials.
  • a clip is made of a hard material as it is made of a synthetic resin as well as a metal, it can be used repeatedly, for example, when the mating member to be locked is soft. May cause damage to the mating material, such as causing damage to the mating material when mating or locking, or separating the paint if the mating material surface is painted. , Not preferred. Therefore, in order to avoid this problem, a soft material such as a rubber product is interposed between the clip and the mating material, but the structure becomes complicated. In some cases, a soft soft resin is used as the clip material.
  • the present inventors have intensively studied a combination of two types of primary and secondary resin materials when a clip is formed as a composite molded product by a dual molding method or the like. To complete the present invention o
  • a clip base is formed using a resin material mainly composed of a thermoplastic polyester as a primary material, and a soft molding is formed as a secondary molding material on a surface or a fitting portion of the surface. It is a synthetic resin clip that is integrally molded by double molding or two-color molding using a resin material mainly composed of thermoplastic polyester elastomer.
  • a clip base having elastic repulsion is formed by primary molding using a resin material mainly composed of thermoplastic polyester as a primary material.
  • a synthetic resin clip formed by using a resin material mainly composed of a soft thermoplastic polyester elastomer to form a flexible portion by a double molding method or the like. It is unique in that it is integrally compounded by using a combination of specific primary and secondary resin materials, and has an appropriate elasticity as a clip, and furthermore, its locking, fitting, and detaching Even if it is repeated, the mating material is not damaged, and due to its composite integration, the secondary material of the clip itself has sufficient fusion strength even if the shape of the adhesive or anchor is not considered. Deterioration, cracking, and surface roughening even under operating environments where there is no separation at the interface, and in contact with gasoline, oils, and plastics That make it possible to provide clips without A.
  • the resin material used as the primary material may be any resin material mainly composed of thermoplastic polyester.
  • polyalkylene terephthalate represented by polybutylene terephthalate (polyalkylene group having 2 to 4 carbon atoms), and these are the main components.
  • the copolymer may be a known copolymer, or may be a mixture of a small amount of another thermoplastic resin as an auxiliary.
  • Such a primary resin material needs to be fused with the secondary material in the secondary molding, so if the primary resin material has a remarkably high melting point, the resin temperature of the secondary material in the secondary molding needs to be higher.
  • Thermal decomposition It is preferable to select the following materials with a melting point of 230 because they are easy to produce and may cause problems in molding due to abnormal decrease in viscosity. Particularly preferred is 220 or less.
  • a preferable primary material is polybutylene terephthalate or a copolymer or a mixture containing the same as a main component.
  • the type of the copolymer component is not particularly limited, and a known copolymer component is used, but the amount of the copolymer component is generally preferably 40% or less from the viewpoint of the elastic modulus.
  • an inorganic filler is used to reinforce its mechanical properties, from the viewpoint of heat resistance (thermal deformation temperature), dimensional accuracy, etc., and especially when it is necessary to increase the elastic modulus of the final molded product. You may mix.
  • the inorganic filler include fibrous reinforcing agents such as glass fiber and carbon fiber, glass flakes, glass powder, glass beads, my strength, calcium carbonate, and other granular or plate-like fillers.
  • the present invention is not limited to this, and any known inorganic filler can be selectively used to impart the desired physical properties. Two or more inorganic fillers may be used in combination.
  • the clip of the present invention generally utilizes elastic repulsion, and since such elasticity is determined by the bending elastic modulus of the primary molded product, selection of the material composition of the primary molded product is not important. It should be done from the viewpoint of the desired elasticity of the clip, the type of thermoplastic polyester resin used as the primary molding material, the type and amount of the copolymerization component, and other auxiliary heat Depending on the type and amount of the plastic resin, the type and amount of the inorganic filler, etc. It can be adjusted according to the purpose, but in general, it is desirable that the flexural modulus is 100000 kg Zcnf or more in terms of the function as a clip.
  • the resin material for forming the flexible surface portion or the fitting portion of the composite molded article as the clip of the present invention is mainly composed of a thermoplastic polyester elastomer.
  • a material having a flexural modulus of 7000 kgZcrf or less is preferred for imparting properties. More preferably, it is less than 5000kg Zcrf.
  • the polyester elastomer as a main component constituting such a secondary material may be any random or block copolymer polyester having a soft segment such as a polyoxyalkylene glycol ester as a constitutional unit. Often any commercial product or preparation can be used.
  • a typical example is a polyoxyethylene glycol or a phthalic acid ester of polyoxybutylene glycol used as a soft segment, and a polybutylene phthalate or ethylene phthalate as another constituent unit. It is a ester copolymer.
  • thermoplastic resin may be supplemented.
  • the degree of flexibility of the surface of the clip depends on the soft segments in the polyester elastomers that make up the secondary material, such as the polyoxyalkylene glycol ester segments. It is adjusted to the desired value by appropriately selecting the amount of the polymer, the molecular weight of the segment, other copolymerization components or other auxiliary resin.
  • the clip of the present invention is formed by double molding on a surface molded product which is primarily molded using the primary material described above, and for a surface portion or a fitting sliding portion requiring flexibility. Molding and fusing so as to cover with a secondary material by a method or the like.
  • the resin temperature of the secondary material in the secondary molding must be at least higher than the melting point of the primary material, preferably from the melting point of the primary material. 10 to 70: A high resin temperature is desirable for strengthening the fusion.
  • the synthetic resin clip of the present invention is a composite molded by a double molding method or the like by selectively using the specific two types of polyester resin materials as described above.
  • the clip has appropriate elastic repulsion as a whole
  • the surface or the mating engagement part on the surface maintains flexibility and does not damage the corresponding partner material
  • FIG. 11 is a diagram showing the shape of a primary molded product as an example of the clip of the present invention, (a) is a plan view, (b) is a cross-sectional view taken along line X-X of (a), c) is a bottom view and FIG. 12 is a diagram showing an example of the composite molding clip of the present invention (composite molding by secondary molding using FIG. 11 as a base), (a) is a plan view, and (a) is a plan view. (b) is a sectional view taken along line X-X of (a), and (c) is a bottom view.
  • a clip base having the shape shown in Fig. 11 is injection-molded using the primary resin material shown in Table 1, and then the secondary resin material shown in Table 1 is used. As shown in Fig. 12, a part of the surface was composite-molded by the double molding method to create a clip.
  • the clips were left in gasoline at 60 for a certain period of time to observe and evaluate the surface degradation (cracking, surface roughening tendency, secondary material separation tendency, etc.).
  • the primary and secondary materials used for the composite molded product are as follows.
  • A-1 Polybutylene terephthalate resin (melting point 225, flexural modulus
  • A-2 Polybutylene terephthalate copolymer resin containing a small amount of polybutylene isophthalate (melting point 205: flexural modulus 26000 kg Xcnf)
  • A-3 Polybutylene terephthalate copolymer (melting point: 185, flexural modulus: 15000 kgXcnf)
  • A-4 Polycarbonate (melting point about 240 "C, flexural modulus 23000 kgZcni)
  • A-5 Polyacetal resin (melting point 177, flexural modulus 27,000 kg crf) Note 1) Secondary material

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

A clip made of synthetic resin through such processes that: a primary resin material constituted mainly of thermoplastic polyester is used for forming a clip base; a secondary resin material constituted mainly of soft thermoplastic polyester elastomer is integrally composite-molded with the surface of said clip base or to insertion part on said surface through double molding or two-color molding so as to form a composite product having a resilient repulsive force.

Description

明 細 書  Specification
合成樹脂製ク リ ップ  Synthetic resin clip
〔産業上の利用分野〕  [Industrial applications]
本発明は、 自動車等において物品又は部品等を、 弾性反発力を利 用して相手材に装着、 係止するための合成樹脂製ク リ ップに関する, 〔従来の技術〕  The present invention relates to a clip made of synthetic resin for attaching and locking an article or a part or the like to an opponent material using elastic repulsion in an automobile or the like, [Prior Art]
自動車その他の機器、 器具等において、 弾性反発力を利用して物 品又は部品等を相手材に装着、 係止するようなク リ ップの用途が多 く存在する。 しかし斯かるク リ ップは、 金属製のものはもちろん、 合成樹脂製のものでも硬質の材料をそのまま用いたのでは、 繰り返 し使用することによって、 例えば係止する相手材が軟質の場合は、 その嵌合、 係止の際に相手材に傷を生じさせたり、 又、 相手材表面 が塗装されている場合には塗料を剝離させてしまう等、 相手材を損 傷させることがあり、 好ま しく ない。 そこでこの問題を回避するた め、 ク リ ツプと相手材の間にゴム製品等の軟質材料を介在させるこ とが行われているが、 構造上煩雑となる。 又、 ク リ ップ材として柔 軟な軟質榭脂を使用する場合もあるが、 斯かる軟質樹脂材料は一般 に弾性率が低いため、 ク リ ップとしての係止力が弱い等の問題があ これらの問題点を解決するため、 硬質榭脂材料を一次材料とする 成形品の表面又は表面の係止嵌合部に、 軟質樹脂材料を二重成形又 は二色成形 （以後これらを総称して二重成形等という） により複合 成形することにより、 上記問題点の解決されたク リ ップを作成する 試みもなされており、 例えばポ リカーボネー トを一次成形し、 その 表面嵌合部にポリアミ ドエラス トマ一を二重成形法により複合化し たク リ ップ、 或いはポリァセタ ール樹脂を一次成形し、 その表面嵌 合部をゥレタ ン系エラス トマ一にて二重成形法等により複合化した ク リ ップ等がみられるが、 斯かる複合成形品においても、 一般に繰 り返し使用により、 一次、 二次成形材料の接合面が剝離し易く、 外 観も悪く、 又、 その材料によっては、 ガソ リ ン、 オイル類、 ヮック ス類が付着するような環境下での使用の際に、 それらの付着により 経時的に表面上にクラ ックが発生し表面が浸食される等の問題があ o In automobiles and other equipment and appliances, there are many uses for clips that use elastic repulsion to attach and lock goods or parts to mating materials. However, if such a clip is made of a hard material as it is made of a synthetic resin as well as a metal, it can be used repeatedly, for example, when the mating member to be locked is soft. May cause damage to the mating material, such as causing damage to the mating material when mating or locking, or separating the paint if the mating material surface is painted. , Not preferred. Therefore, in order to avoid this problem, a soft material such as a rubber product is interposed between the clip and the mating material, but the structure becomes complicated. In some cases, a soft soft resin is used as the clip material. However, since such a soft resin material generally has a low elastic modulus, there are problems such as a weak locking force as the clip. In order to solve these problems, double molding or two-color molding of a soft resin material is applied to the surface of a molded product using a hard resin material as the primary material or to the engagement fitting part on the surface. Create a clip that solves the above problems by performing composite molding by collectively using double molding etc. Attempts have also been made, for example, primary molding of polycarbonate, and then, on its surface fitting part, a primary molding of a clip or a composite resin made of a composite of polyamide elastomer by a double molding method. Clips, etc., in which the surface fitting portion is composited with a polyurethane elastomer by a double molding method or the like are seen, but even in such composite molded products, primary and secondary moldings are generally used by repeated use. The joining surface of the secondary molding material is easy to separate and the appearance is poor.Depending on the material, gasoline, oils, and plastics may adhere to each other when used in an environment where they adhere. Causes cracks on the surface over time and erodes the surface.
〔発明の開示〕  [Disclosure of the Invention]
本発明者らは斯かる問題点を解決すベく、 二重成形法等による複 合成形品としてク リ ップを作成する場合の一次、 二次の 2種の樹脂 材料の組み合わせについて鋭意研究を重ね、 本発明を完成するに到 つ o  In order to solve such a problem, the present inventors have intensively studied a combination of two types of primary and secondary resin materials when a clip is formed as a composite molded product by a dual molding method or the like. To complete the present invention o
即ち、 本発明は、 一次材料として熱可塑性ポ リ エステルを主とす る榭脂材料を用いてク リ ップ基体を成形し、 その表面又は表面の嵌 合部に、 二次成形材料として軟質熱可塑性ポリエステルエラス トマ 一を主とする榭脂材料を用いて二重成形又は二色成形法により一体 的に複合成形した合成樹脂製ク リ ップである。  That is, in the present invention, a clip base is formed using a resin material mainly composed of a thermoplastic polyester as a primary material, and a soft molding is formed as a secondary molding material on a surface or a fitting portion of the surface. It is a synthetic resin clip that is integrally molded by double molding or two-color molding using a resin material mainly composed of thermoplastic polyester elastomer.
本発明は、 一次材料として熱可塑性ポリエステルを主とする樹脂 材料を用いて一次成形して弾性反発力を有するク リ ップの基体を形 成し、 次にこの表面又は係止時に摺動嵌合する部分に、 二次材料と して軟質の熱可塑性ポリエステルエラス トマ ーを主とする樹脂材料 を用いて二重成形法等により柔軟な部分を形成するよう複合化した の合成樹脂製ク リ ップであって、 かかる 2種の特定の一次、 二次榭 脂材料を組合せ使用して一体的に複合化した点に特徵を有し、 ク リ ップとして適当な弾性力を持ち、 しかもその係止、 嵌合、 脱着の繰 り返しによっても相手材を傷つけることなく、 又、 その複合一体化 によりク リ ップ自体の二次材料が接着剤やアンカ 一形状を考慮しな くても充分な融着強度を有し界面で剝離を生じることがなく、 更に ガソ リ ン、 オイル類、 ヮックス類と接触するような使用環境下にお いても、 劣化してク ラ ックが発生したり表面粗化するようなことの ないク リ ップを提供することを可能としたものである。 According to the present invention, a clip base having elastic repulsion is formed by primary molding using a resin material mainly composed of thermoplastic polyester as a primary material. Where they meet, A synthetic resin clip formed by using a resin material mainly composed of a soft thermoplastic polyester elastomer to form a flexible portion by a double molding method or the like. It is unique in that it is integrally compounded by using a combination of specific primary and secondary resin materials, and has an appropriate elasticity as a clip, and furthermore, its locking, fitting, and detaching Even if it is repeated, the mating material is not damaged, and due to its composite integration, the secondary material of the clip itself has sufficient fusion strength even if the shape of the adhesive or anchor is not considered. Deterioration, cracking, and surface roughening even under operating environments where there is no separation at the interface, and in contact with gasoline, oils, and plastics That make it possible to provide clips without A.
以下、 本発明の特徴をなす一次材料及び二次材料について説明す る o  Hereinafter, the primary and secondary materials that characterize the present invention will be described.o
一次材料として使用する樹脂材料としては熱可塑性ポリエステル を主体とする榭脂材料であれば何れにてもよい。  The resin material used as the primary material may be any resin material mainly composed of thermoplastic polyester.
具体的には、 ポ リブチ レンテ レフタレー ト、 ポ リ エチ レンテレフ タ レー トで代表されるポ リ アルキ レンテ レフタ レ一 ト （アルキ レン 基の炭素数 2 〜 4 ) であり、 これらを主成分とする公知の共重合体、 或いは補助的に他の熱可塑性樹脂を少量配合したものであってもよ い。  Specifically, it is polyalkylene terephthalate (polyalkylene terephthalate) represented by polybutylene terephthalate (polyalkylene group having 2 to 4 carbon atoms), and these are the main components. The copolymer may be a known copolymer, or may be a mixture of a small amount of another thermoplastic resin as an auxiliary.
かかる一次榭脂材料は二次成形において二次材料によって融着す る必要があるため、 著しく高融点のものは二次成形における二次材 料の樹脂温度をそれ^上に高くする必要が生じるため熱分解を生じ 易く、 又異常な粘度低下を生じて成形上問題が生ずる場合もあるの で、 融点が 230で以下の材料を選定することが好ましい。 特に好ま しく は 220で以下である。 Such a primary resin material needs to be fused with the secondary material in the secondary molding, so if the primary resin material has a remarkably high melting point, the resin temperature of the secondary material in the secondary molding needs to be higher. Thermal decomposition It is preferable to select the following materials with a melting point of 230 because they are easy to produce and may cause problems in molding due to abnormal decrease in viscosity. Particularly preferred is 220 or less.
かかる観点から一次材料として好ましいものはポリブチレンテレ フタレー ト又はこれを主成分とする共重合体又は混合体である。 共 重合成分の種類は特に限定するものではなく公知の共重合成分が用 いられるが、 その導入量は弾性率の見地から一般には 40%以下であ ることが望ましい。  From these viewpoints, a preferable primary material is polybutylene terephthalate or a copolymer or a mixture containing the same as a main component. The type of the copolymer component is not particularly limited, and a known copolymer component is used, but the amount of the copolymer component is generally preferably 40% or less from the viewpoint of the elastic modulus.
又、 一次材料としてはその機械的物性を補強し、 耐熱性 （熱変形 温度） 、 寸法精度等の見地から、 又特に最終成形品の弾性率を増大 させる必要のある場合は無機充塡剤を配合してもよい。 無機充塡剤 としてはガラス繊維、 炭素繊維の如き繊維状強化剤、 ガラスフレー ク、 ガラス粉、 ガラスビーズ、 マイ力、 炭酸カルシウム、 その他の 粒状又は板状の充塡剤が挙げられるが、 これに限定したものではな く、 公知の何れの無機充塡剤もその目的とする物性を付与するため 選択使用することが出来る。 無機充塡剤は二種以上を併用してもよ い。  In addition, as a primary material, an inorganic filler is used to reinforce its mechanical properties, from the viewpoint of heat resistance (thermal deformation temperature), dimensional accuracy, etc., and especially when it is necessary to increase the elastic modulus of the final molded product. You may mix. Examples of the inorganic filler include fibrous reinforcing agents such as glass fiber and carbon fiber, glass flakes, glass powder, glass beads, my strength, calcium carbonate, and other granular or plate-like fillers. The present invention is not limited to this, and any known inorganic filler can be selectively used to impart the desired physical properties. Two or more inorganic fillers may be used in combination.
本来、 本発明のク リ ップは、 一般に弾性反発力を利用するもので あり、 斯かる弾性は一次成形品の曲げ弾性率によって規定されるの で、 一次成形品の材料の構成の選択は目的とするク リ ップの弾性率 の見地から行うべきであり、 一次成形材料として使用する熱可塑性 ポ リ エステル樹脂の種類、 共重合成分の種類と量、 他の補助的に併 用する熱可塑性樹脂の種類と量、 無機充填剤の種類と量等によって 目的に応じ調節することが可能であるが、 一般にク リ ップとしての 機能上、 曲げ弾性率が lOOOOkg Zcnf以上であることが望ま しい。 次に本発明のク リ ップと しての複合成形品の柔軟な表面部又は嵌 合部を形成するための榭脂材料は熱可塑性ポリエステルエ ラス トマ —を主体とするものであり、 柔軟性を付与する目的から、 一般的に は曲げ弾性率が 7000kgZcrf以下のものが好ま しい。 更に好ま しく は 5000kg Zcrf以下のものである。 Originally, the clip of the present invention generally utilizes elastic repulsion, and since such elasticity is determined by the bending elastic modulus of the primary molded product, selection of the material composition of the primary molded product is not important. It should be done from the viewpoint of the desired elasticity of the clip, the type of thermoplastic polyester resin used as the primary molding material, the type and amount of the copolymerization component, and other auxiliary heat Depending on the type and amount of the plastic resin, the type and amount of the inorganic filler, etc. It can be adjusted according to the purpose, but in general, it is desirable that the flexural modulus is 100000 kg Zcnf or more in terms of the function as a clip. Next, the resin material for forming the flexible surface portion or the fitting portion of the composite molded article as the clip of the present invention is mainly composed of a thermoplastic polyester elastomer. In general, a material having a flexural modulus of 7000 kgZcrf or less is preferred for imparting properties. More preferably, it is less than 5000kg Zcrf.
かかる二次材料を構成する主成分のポリエステルエラス トマ一は ポ リ オキシアルキ レング リ コ ールエステルの如きソフ ト セグメ ン ト を構成単位とするラ ンダム又はプロ ック共重合ポリエステルであれ ば何れにてもよく任意の市販品又は調製品を使用することが出来る。 代表的なものはポリオキシエチ レングリコ一ル又はポリオキシブ チ レングリ コ ールのフタル酸エステルをソ フ ト セグメ ン トとし、 ブ チ レンテ レフタ レー 卜又はエチ レンテ レフタ レ一 トを他の構成単位 とするポ リ エステル共重合体である。  The polyester elastomer as a main component constituting such a secondary material may be any random or block copolymer polyester having a soft segment such as a polyoxyalkylene glycol ester as a constitutional unit. Often any commercial product or preparation can be used. A typical example is a polyoxyethylene glycol or a phthalic acid ester of polyoxybutylene glycol used as a soft segment, and a polybutylene phthalate or ethylene phthalate as another constituent unit. It is a ester copolymer.
又、 少量の他の熱可塑性榭脂が補助的に配合されたものであって もよい。 ク リ ップの表面部の柔軟性の程度はかかる二次材料を構成 するポ リ エステルエ ラ ス ト マ一中のソ フ ト セグメ ン ト、 例えばポ リ ォキ シアルキ レングリ コ ールエステルセグメ ン トの会有量、 そのセ グメ ン トの分子量、 その他の共重合成分又は他の補助的添加榭脂等 を適宜選択することによって目的とする値に調整される。  Further, a small amount of other thermoplastic resin may be supplemented. The degree of flexibility of the surface of the clip depends on the soft segments in the polyester elastomers that make up the secondary material, such as the polyoxyalkylene glycol ester segments. It is adjusted to the desired value by appropriately selecting the amount of the polymer, the molecular weight of the segment, other copolymerization components or other auxiliary resin.
本発明のク リ ップは前記の一次材料を用いて一次成形した基体成 形品上に、 柔軟性を要する表面部又は嵌合摺動部を対象に二重成形 法等により二次材料にて被覆するよう成形し融着するもので、 二次 成形における二次材料の樹脂温度は少なく とも一次材料の融点以上 とする必要があり、 好ましく は一次材料の融点より 10〜70 :高い樹 脂温度とすることが融着を強固にする上で望ましい。 The clip of the present invention is formed by double molding on a surface molded product which is primarily molded using the primary material described above, and for a surface portion or a fitting sliding portion requiring flexibility. Molding and fusing so as to cover with a secondary material by a method or the like.The resin temperature of the secondary material in the secondary molding must be at least higher than the melting point of the primary material, preferably from the melting point of the primary material. 10 to 70: A high resin temperature is desirable for strengthening the fusion.
本発明の合成樹脂製ク リ ップは前述の如き特定の 2種のポリエス テル系樹脂材料を選択使用して二重成形法等により複合成形したも ので、  The synthetic resin clip of the present invention is a composite molded by a double molding method or the like by selectively using the specific two types of polyester resin materials as described above.
ひ)ク リ ップ全体として適当な弾性反発力を有し、  H) The clip has appropriate elastic repulsion as a whole,
(2)しかも表面又は表面の嵌合係止部は柔軟性を保ち、 対応する相 手材を損傷するようなことがなく、  (2) Moreover, the surface or the mating engagement part on the surface maintains flexibility and does not damage the corresponding partner material,
(3)—次成形基体と表面柔軟部分とが強固に融着して、 剝離し難く (3) —The next molded substrate and the surface soft part are firmly fused and hardly separated.
(4)機械的物性、 耐熱性、 耐化学薬品性にも優れ、 特にガソ リ ン、 オイル類、 ヮックス類等の共存付着に対しても劣化抵抗を有し、(4) Excellent mechanical properties, heat resistance, and chemical resistance.
(5)しかも軽量であって、 (5) It is lightweight,
自動車、 その他の機器、 器具等における繰り返し脱着が行われるよ うなク リ ップとして好適である。 It is suitable as a clip that can be repeatedly attached and detached in automobiles, other equipment, appliances and the like.
〔図面の簡単な説明〕  [Brief description of drawings]
図一 1 は本発明のク リ ップの一例としての一次成形品の形状を示 す図であり、 （a)は平面図、 （b)は (a)の X— X線断面図、 （c)は底面図で 図一 2は本発明の複合成形ク リ ップ （図一 1を基体として二次成 形により複合成形） の一例を示す図であり、 （a)は平面図、 （b)は (a)の X— X線断面図、 （c)は底面図である。 1 ： 一次成形部 FIG. 11 is a diagram showing the shape of a primary molded product as an example of the clip of the present invention, (a) is a plan view, (b) is a cross-sectional view taken along line X-X of (a), c) is a bottom view and FIG. 12 is a diagram showing an example of the composite molding clip of the present invention (composite molding by secondary molding using FIG. 11 as a base), (a) is a plan view, and (a) is a plan view. (b) is a sectional view taken along line X-X of (a), and (c) is a bottom view. 1: Primary molding part
2 ： 二次成形部  2: Secondary molding part
〔実施例〕  〔Example〕
以下実施例により本発明を更に具体的に説明するが、 本発明はこ れらに限定されるものではない。  Hereinafter, the present invention will be described more specifically with reference to Examples, but the present invention is not limited thereto.
実施例 1〜 5、 比較例 1〜 3 Examples 1 to 5, Comparative Examples 1 to 3
—次成形品として、 図一 1 に示す形状のク リ ップ基体を表 1 に示 す一次榭脂材料を用いて射出成形し、 次いでこれに表 1 に示す二次 樹脂材料を用いてその表面一部を図一 2に示す如く、 二重成形法に より複合成形してク リ ップを作成した。  —As the next molded product, a clip base having the shape shown in Fig. 11 is injection-molded using the primary resin material shown in Table 1, and then the secondary resin material shown in Table 1 is used. As shown in Fig. 12, a part of the surface was composite-molded by the double molding method to create a clip.
このク リ ップについて、 相手材として塗装を施した嵌合孔を有す る鉄板を用い、 係止脱着を一定回数繰り返し、 相手材の塗装の損傷、 ク リ ップ自体の損傷 （二次材料の剝離等） を調べた。  For this clip, using a painted iron plate with a mating hole as the mating material, locking and detaching are repeated a certain number of times, and damage to the painting of the mating material and damage to the clip itself (secondary And the like).
又、 ク リ ップを 60でのガソ リ ン中に一定時間放置して表面の劣化 (クラ ックの発生、 表面の粗化傾向、 二次材料の剝離傾向等） を観 察し評価した。  In addition, the clips were left in gasoline at 60 for a certain period of time to observe and evaluate the surface degradation (cracking, surface roughening tendency, secondary material separation tendency, etc.).
結果を合わせて表 1 に示す。 The results are shown in Table 1.
最終成形品 （ク リ ツプ） の特性 一次材料 -次材料 一次成形 Characteristics of final molded product (clip) Primary material -Next material Primary molding
注一 1 ) 注一 2 ) 樹脂温度 繰り返し脱着 ス ト ガソ リ ン浸 ( V. ) 外観 濱テス ト ク リ ップ 相手材  Note 1) Note 1) 2) Resin temperature Repeated desorption Desorption of gasoline (V.) Appearance Hama test clip Counterpart material
1 B- 1 良好 変化なし 変化なし 変化なし 1 B- 1 Good No change No change No change
2 Α-2 B-1 250 2 Α-2 B-1 250
施 3 Α-3 B-1 240 Al 3 Α-3 B-1 240
4 Α- 1  4 Α- 1
例 An example
5 Α - 3 B-2 240  5 Α-3 B-2 240
1 A- 1のみ ίこて一回成形 250 塗料に摺  1 A- 1 only
比 動痕 Ratio mark
較 2 Α - 4 B-3 260 変色顕著 二次材 変化なし 膨潤傾向 剝離傾向 Comparison 2 Α-4 B-3 260 Discoloration remarkable Secondary material No change Swelling tendency Separation tendency
例 An example
3 A - 5 B-4 240 変色顕著 //  3 A-5 B-4 240 Discoloration prominent //
光沢不良 Poor gloss
尚、 複合成形品に使用した一次材料、 二次材料は以下の通りであ る。 The primary and secondary materials used for the composite molded product are as follows.
注一 1 ) 一次材料  Note 1) Primary material
A-1 ： ポ リ ブチレンテレフタ レー ト榭脂 （融点 225 で、 曲げ弾性率  A-1: Polybutylene terephthalate resin (melting point 225, flexural modulus
26000 kg/cnf)  26000 kg / cnf)
A - 2 ： ポ リ ブチレ ンイ ソフタ レー トを少量含有するポ リ ブチレ ンテ レフタ レー ト共重合榭脂 （融点 205 ：、 曲げ弾性率 26000 kg Xcnf)  A-2: Polybutylene terephthalate copolymer resin containing a small amount of polybutylene isophthalate (melting point 205: flexural modulus 26000 kg Xcnf)
A- 3 ： ポ リ ブチレンテレフタ レー ト共重合体 （融点 185 、 曲げ弾 性率 15000 kgXcnf)  A-3: Polybutylene terephthalate copolymer (melting point: 185, flexural modulus: 15000 kgXcnf)
A - 4 ： ポリカーボネー ト （融点約 240 "C、 曲げ弾性率 23000 kgZcni) A-5 ： ポリアセタ一ル榭脂 （融点 177 で、 曲げ弾性率 27000 kg crf) 注一 2 ) 二次材料 A-4: Polycarbonate (melting point about 240 "C, flexural modulus 23000 kgZcni) A-5: Polyacetal resin (melting point 177, flexural modulus 27,000 kg crf) Note 1) Secondary material
B-1 ： ポ リ エステルエラス トマ一 （融点 182 で、 曲げ弾性率 720 kg  B-1: Polyester elastomer (melting point 182, flexural modulus 720 kg
Zcnf)  Zcnf)
B-2 ： ポ リ エステルエラス トマ一 （融点 198 で、 曲げ弾性率 1100kg Xcnf)  B-2: Polyester elastomer (melting point 198, flexural modulus 1100kg Xcnf)
B-3 ： ポ リ ア ミ ドエラス トマ一 （融点 170 、 曲げ弾性率 3500kgZ cnf)  B-3: Polymidoelastomer (melting point 170, flexural modulus 3500kgZ cnf)
B-4 ： ポリ ウ レタ ンエラス トマ一 （融点 160 で、 曲げ弾性率 1000kg  B-4: Polyurethane elastomer (melting point 160, flexural modulus 1000 kg

Claims

請求の範囲  The scope of the claims
一次材料として熱可塑性ポリエステルを主とする樹脂材料を用 いてク リ ップ基体を成形し、 その表面又は表面の嵌合部に、 二次 成形材料として钦質熱可塑性ポ リ エステルエラス ト マ一を主とす る樹脂材料を用いて二重成形又は二色成形法により一体的に複合 成形した合成樹脂製ク リ ップ。  A clip base is formed using a resin material mainly composed of thermoplastic polyester as a primary material, and a high-quality thermoplastic polyester elastomer is formed on a surface or a fitting portion of the surface as a secondary molding material. A synthetic resin clip that is integrally molded using a resin material mainly composed of a double- or two-color molding method.
一次材料を構成する熱可塑性ポリエステルを主とする榭脂材料 が、 曲げ弾性率 10000 kgZcrf以上である請求項 1記載の合成樹脂 製ク リ ツプ。  2. The synthetic resin clip according to claim 1, wherein the resin material mainly composed of thermoplastic polyester constituting the primary material has a flexural modulus of 10,000 kgZcrf or more.
—次材料を構成する熱可塑性ポリエステルを主とする樹脂材料 が、 融点 230 以下である請求項 1記載の合成樹脂製ク リ ップ。 —次材料を構成する熱可塑性ポリエステルがポリアルキレンテ レフタレー ト （アルキ レン基の炭素数 2〜4 ) 又はこれを主体と する共重合体又は混合体である請求項 1記載の合成樹脂製ク リ ッ プ。  — The synthetic resin clip according to claim 1, wherein the resin material mainly composed of thermoplastic polyester constituting the following material has a melting point of 230 or less. -The synthetic resin cristal according to claim 1, wherein the thermoplastic polyester constituting the following material is polyalkylene terephthalate (alkylene group having 2 to 4 carbon atoms) or a copolymer or a mixture mainly containing the same. Up.
二次成形に用いるポリエステルエラス トマ一を主とする樹脂材 料が、 曲げ弾性率 7000kg Zcnf以下である請求項 1記載の合成樹脂 製ク リ ツプ。  2. The synthetic resin clip according to claim 1, wherein the resin material mainly composed of a polyester elastomer used for the secondary molding has a flexural modulus of not more than 7000 kg Zcnf.
PCT/JP1991/001340 1990-10-04 1991-10-03 Clip made of synthetic resin WO1992006308A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2268073A JP2659273B2 (en) 1990-10-04 1990-10-04 Synthetic resin clip
JP2/268073 1990-10-04

Publications (1)

Publication Number Publication Date
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CA (1) CA2070404A1 (en)
WO (1) WO1992006308A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995018701A1 (en) * 1994-01-11 1995-07-13 Facom Tool handle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10318268A (en) * 1997-03-18 1998-12-02 Nippon Seiko Kk Seal for rolling bearing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6132809U (en) * 1984-07-31 1986-02-27 豊田合成株式会社 Synthetic resin clip
JPH0231603Y2 (en) * 1986-02-12 1990-08-27

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0425528Y2 (en) * 1988-08-02 1992-06-18

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6132809U (en) * 1984-07-31 1986-02-27 豊田合成株式会社 Synthetic resin clip
JPH0231603Y2 (en) * 1986-02-12 1990-08-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995018701A1 (en) * 1994-01-11 1995-07-13 Facom Tool handle
FR2714863A1 (en) * 1994-01-11 1995-07-13 Facom Tool handle.

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JP2659273B2 (en) 1997-09-30
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