JP2659273B2 - Synthetic resin clip - Google Patents
Synthetic resin clipInfo
- Publication number
- JP2659273B2 JP2659273B2 JP2268073A JP26807390A JP2659273B2 JP 2659273 B2 JP2659273 B2 JP 2659273B2 JP 2268073 A JP2268073 A JP 2268073A JP 26807390 A JP26807390 A JP 26807390A JP 2659273 B2 JP2659273 B2 JP 2659273B2
- Authority
- JP
- Japan
- Prior art keywords
- clip
- resin
- synthetic resin
- molding
- primary
- 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 - Fee Related
Links
- 229920003002 synthetic resin Polymers 0.000 title claims description 12
- 239000000057 synthetic resin Substances 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims description 65
- 238000000465 moulding Methods 0.000 claims description 29
- 229920005989 resin Polymers 0.000 claims description 29
- 239000011347 resin Substances 0.000 claims description 29
- 229920000728 polyester Polymers 0.000 claims description 16
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- 229920001971 elastomer Polymers 0.000 claims description 11
- 239000000806 elastomer Substances 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 229920001169 thermoplastic Polymers 0.000 claims description 8
- 239000004416 thermosoftening plastic Substances 0.000 claims description 8
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 4
- 239000012778 molding material Substances 0.000 claims description 4
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 claims description 4
- 229920001283 Polyalkylene terephthalate Polymers 0.000 claims description 2
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 claims 1
- -1 polybutylene terephthalate Polymers 0.000 description 12
- 230000013011 mating Effects 0.000 description 10
- 239000002131 composite material Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 229920001707 polybutylene terephthalate Polymers 0.000 description 5
- 238000007334 copolymerization reaction Methods 0.000 description 4
- 239000003502 gasoline Substances 0.000 description 4
- 239000011256 inorganic filler Substances 0.000 description 4
- 229910003475 inorganic filler Inorganic materials 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000001993 wax Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229930182556 Polyacetal Natural products 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- WSQZNZLOZXSBHA-UHFFFAOYSA-N 3,8-dioxabicyclo[8.2.2]tetradeca-1(12),10,13-triene-2,9-dione Chemical compound O=C1OCCCCOC(=O)C2=CC=C1C=C2 WSQZNZLOZXSBHA-UHFFFAOYSA-N 0.000 description 1
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229920006230 thermoplastic polyester resin Polymers 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
- F16B21/08—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
Landscapes
- 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)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 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。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin clip for attaching and locking an article or a part to an opponent using an elastic repulsion force in an automobile or the like.
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剥離させて
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、クリップと相手材
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
軟な軟質樹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る。2. Description of the Related Art In automobiles and other devices and appliances, there are many uses of clips for attaching and locking articles or parts to a counterpart material using elastic repulsion. However, such a clip is not only made of metal, but also made of a hard material made of synthetic resin as it is, by repeatedly using it, for example, when the mating member to be locked is soft,
At the time of the fitting and locking, it may cause damage to the mating material,
If the surface of the mating material is painted, the mating material may be damaged, such as peeling off the paint, which is not preferable. Therefore, in order to avoid this problem, a soft material such as a rubber product is interposed between the clip and the mating member, but the structure is complicated. In some cases, a flexible soft resin is used as the clip material. However, such a soft resin material generally has a low elastic modulus, and thus has a problem such as a weak locking force as a clip.
これらの問題点を解決するため、硬質樹脂材料を一次
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ーを二重成形法によ
り複合化したクリップ、或いはポリアセタール樹脂を一
次成形し、その表面嵌合部をウレタン系エラストマーに
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剥離し易く、外
観も悪く、又、その材料によっては、ガソリン、オイル
類、ワ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る。In order to solve these problems, a soft resin material is double-molded or two-color molded (hereinafter collectively referred to as "two-color molding") on the surface of a molded article made of a hard resin material as a primary material or on a locking fitting portion on the surface. Composite molding).
Attempts have been made to create a clip in which the above-mentioned problems have been solved, for example, a primary molding of polycarbonate, and a clip obtained by compounding a polyamide elastomer by a double molding method on its surface fitting portion, or a primary molding of a polyacetal resin. In some cases, a clip or the like in which the surface fitting portion is composited with a urethane-based elastomer by a double molding method or the like is seen. Even in such a composite molded product, the bonding surface of the primary and secondary molding materials is generally used by repeated use. Is easy to peel off and its appearance is bad.Depending on the material, when used in an environment where gasoline, oils and waxes adhere, cracks may occur on the surface over time due to the adhesion. There is a problem that the surface is eroded.
本発明者らは斯かる問題点を解決すべく、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った。In order to solve such a problem, the present inventors have intensively studied a combination of two types of resin materials, primary and secondary, when producing a clip as a composite molded product by a double molding method or the like, and Was completed.
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軟質
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, the present invention forms a clip base using a resin material mainly composed of thermoplastic polyester as a primary material,
It is a synthetic resin clip that is integrally molded by double molding or two-color molding using a resin material mainly composed of a soft thermoplastic polyester elastomer as a secondary molding material on the surface or a fitting portion of the surface. .
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、二次樹脂材料を組合せ使用して一体的に複合化した
点に特徴を有し、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ー形状を考慮しな
くても充分な融着強度を有し界面で剥離を生じることが
なく、更にガソリン、オイル類、ワ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。The present invention forms a base of a clip having elastic repulsion by primary molding using a resin material mainly composed of thermoplastic polyester as a primary material, and then on this surface or a portion which is slidably fitted at the time of locking. A synthetic resin clip formed by using a resin material mainly composed of a soft thermoplastic polyester elastomer as a secondary material to form a flexible portion by a double molding method or the like; It has the characteristic that it is integrally compounded by using a combination of primary and secondary resin materials, and has an appropriate elastic force as a clip,
In addition, the mating material is not damaged by repeated locking, fitting, and detachment, and the combined integration makes it possible for the secondary material of the clip itself to have sufficient fusion strength without considering the adhesive or anchor shape. A clip that does not peel off at the interface and that does not deteriorate, cracks, or roughen the surface even in use environments where it comes into contact with gasoline, oils, waxes It is possible to provide.
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。Hereinafter, the primary material and the secondary material that characterize the present invention will be described.
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樹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
タレート（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 a polyalkylene terephthalate (alkylene group having 2 to 4 carbon atoms) represented by polybutylene terephthalate or polyethylene terephthalate, and is a known copolymer containing these as a main component, or other heat It may be one containing a small amount of a plastic resin.
かかる一次樹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以上に高くす
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℃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℃以下である。Since such a primary resin material needs to be fused by the secondary material in the secondary molding, a material having a remarkably high melting point requires a higher resin temperature in the secondary molding in the secondary molding, so that thermal decomposition is required. It is easy to cause, and sometimes there is a problem in molding due to abnormal decrease in viscosity.
It is preferable to select a material having a temperature of 230 ° C or lower. Particularly preferably, it is 220 ° C. or lower.
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, preferred as the primary material is polybutylene terephthalate or a copolymer or a mixture containing the same as a main component. The type of the copolymerization component is not particularly limited, and a known copolymerization component is used. The amount of the copolymerization 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填
剤を配合してもよい。無機充填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、マイカ、炭酸カルシウム、その他の
粒状又は板状の充填剤が挙げられるが、これに限定した
ものではなく、公知の何れの無機充填剤もその目的とす
る物性を付与するため選択使用することが出来る。無機
充填剤は二種以上を併用してもよい。In addition, as a primary material, an inorganic filler is blended 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, in order to reinforce its mechanical properties. May be. Glass fiber as inorganic filler,
Fibrous reinforcing agents such as carbon fiber, glass flakes, glass powder, glass beads, mica, calcium carbonate, and other particulate or plate-like fillers, but are not limited thereto, and any known inorganic materials Fillers can also 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10000kg/cm
2以上であることが望ましい。Originally, the clip of the present invention generally utilizes elastic repulsion, and such elasticity is defined by the bending elastic modulus of the primary molded product. The type of thermoplastic polyester resin used as the primary molding material, the type and amount of the copolymer component, the type and amount of other auxiliary thermoplastic resin used, and the inorganic filler Can be adjusted according to the purpose depending on the type and amount of the material, but in general, the bending elastic modulus is 10,000 kg / cm
It is desirable that it be 2 or more.
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樹脂材料は熱可塑性ポ
リエステルエラストマー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7000kg
/cm2以下のものが好ましい。更に好ましくは5000kg/cm2
以下のものである。Next, the resin material for forming the flexible surface portion or the fitting portion of the composite molded product as the clip of the present invention is mainly composed of a thermoplastic polyester elastomer, and for the purpose of imparting flexibility, a general material is used. Has a flexural modulus of 7000 kg
/ cm 2 or less is preferred. More preferably 5000 kg / cm 2
These are:
かかる二次材料を構成する主成分のポリエステルエラ
ストマー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ブ
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。The polyester elastomer of the main component constituting such a secondary material may be any random or block copolymer polyester having a soft segment such as polyoxyalkylene glycol ester as a constitutional unit, and any commercial product or preparation may be used. You can do it.
代表的なものはポリオキシエチレングリコール又はポ
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ト又はエチレ
ンテレフタレートを他の構成単位とするポリエステル共
重合体である。A typical example is a polyester copolymer in which a phthalic acid ester of polyoxyethylene glycol or polyoxybutylene glycol is used as a soft segment, and butylene terephthalate or ethylene terephthalate is used as another structural unit.
又、少量の他の熱可塑性樹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ー中
のソフトセグメント、例えばポリオキシアルキレングリ
コールエステルセグメントの含有量、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樹脂等
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 portion of the clip depends on the content of the soft segment in the polyester elastomer constituting such a secondary material, for example, the content of the polyoxyalkylene glycol ester segment, the molecular weight of the segment, other copolymerization components or other auxiliary components. It is adjusted to a target value by appropriately selecting the additive resin and the like.
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 may be formed by coating a base material molded primarily using the primary material with a secondary material by a double molding method or the like for a surface portion or a fitting sliding portion requiring flexibility. In the secondary molding, the resin temperature of the secondary material must be at least the melting point of the primary material, and preferably the resin temperature is 10 to 70 ° C. higher than the melting point of the primary material. It is desirable to strengthen the clothes.
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
より複合成形したもので、 （１）クリップ全体として適当な弾性反発力を有し、 （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、 （３）一次成形基体と表面柔軟部分とが強固に融着し
て、剥離し難く （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、ワックス類等の共存付着に対し
ても劣化抵抗を有し、 （５）しかも軽量であって、 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。The synthetic resin clip of the present invention is a composite molded by a double molding method or the like using the above-mentioned specific two kinds of polyester-based resin materials. (1) The clip has an appropriate elastic repulsion force as a whole. (2) Moreover, the surface or the fitting / locking portion of the surface keeps flexibility and does not damage the corresponding mating material. (3) The primary molded base and the surface flexible portion are firmly fused to each other. (4) It has excellent mechanical properties, heat resistance and chemical resistance, and especially has resistance to deterioration against coexistence of gasoline, oils, waxes, etc., and (5) It is lightweight and is suitable as a clip that can be repeatedly attached and detached in automobiles, other devices, appliances, and the like.
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.
The present invention is not limited to these.
実施例１〜５、比較例１〜３ 一次成形品として、図−１に示す形状のクリップ基体
を表１に示す一次樹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−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。Examples 1 to 5 and Comparative Examples 1 to 3 As a primary molded product, a clip base having a shape shown in FIG. 1 was injection-molded using a primary resin material shown in Table 1, and then a secondary resin shown in Table 1 was formed. As shown in FIG. 2, a clip was formed by composite molding of a part of the surface of the material by a double molding method as shown in FIG.
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
料の剥離等）を調べた。For this clip, using a painted iron plate with a mating hole as the mating material, locking and detaching were repeated a certain number of times, and damage to the coating of the mating material and damage to the clip itself (peeling of secondary material, etc.) were examined. .
又、クリップを60℃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
料の剥離傾向等）を観察し評価した。The clips were left in gasoline at 60 ° C. for a certain period of time to observe and evaluate surface deterioration (cracks, surface roughening tendency, secondary material peeling tendency, etc.).
結果を合わせて表１に示す。 The results are shown in Table 1.
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−１）一次材料 Ａ−1:ポリブチレンテレフタレート樹脂（融点225℃、
曲げ弾性率26000kg/cm2） 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樹脂（融点205℃、曲げ
弾性率26000kg/cm2） 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15000kg/cm2） Ａ−4:ポリカーボネート（融点約240℃、曲げ弾性率230
00kg/cm2） Ａ−5:ポリアセタール樹脂（融点177℃、曲げ弾性率270
00kg/cm2） 注−２）二次材料 Ｂ−1:ポリエステルエラストマー（融点182℃、曲げ弾
性率720kg/cm2） Ｂ−2:ポリエステルエラストマー（融点198℃、曲げ弾
性率1100kg/cm2） Ｂ−3:ポリアミドエラストマー（融点170℃、曲げ弾性
率3500kg/cm2） Ｂ−4:ポリウレタンエラストマー（融点160℃、曲げ弾
性率1000kg/cm2）Note-1) Primary material A-1: Polybutylene terephthalate resin (melting point 225 ° C,
Flexural modulus 26000 kg / cm 2 ) A-2: Polybutylene terephthalate copolymer resin containing a small amount of polybutylene isophthalate (melting point 205 ° C., flexural modulus 26000 kg / cm 2 ) A-3: Polybutylene terephthalate copolymer ( 185
° C, flexural modulus 15000 kg / cm 2 ) A-4: Polycarbonate (melting point about 240 ° C, flexural modulus 230)
00kg / cm 2) A-5 : polyacetal resin (melting point 177 ° C., flexural modulus 270
00 kg / cm 2 ) Note-2) Secondary material B-1: Polyester elastomer (melting point 182 ° C, flexural modulus 720 kg / cm 2 ) B-2: Polyester elastomer (melting point 198 ° C, flexural modulus 1100 kg / cm 2 ) B-3: Polyamide elastomer (melting point 170 ° C, flexural modulus 3500 kg / cm 2 ) B-4: Polyurethane elastomer (melting point 160 ° C, flexural modulus 1000 kg / cm 2 )
図−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）は底面図である。 図−２は本発明の複合成形クリップ（図−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 2:二次成形部FIG. 1 is a view showing the shape of a primary molded product as an example of the clip of the present invention, where (a) is a plan view and (b) is (a).
(C) is a bottom view. FIG. 2 is a view showing an example of the composite molding clip of the present invention (composite molding by secondary molding using FIG. 1 as a base),
(A) is a plan view, (b) is a sectional view taken along line XX of (a),
(C) is a bottom view. 1: Primary molding part 2: Secondary molding part
Claims (6)
とする樹脂材料を用いてクリップ基体を射出成形し、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ー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射出成形して一体
的に複合成形した合成樹脂製クリップ。1. A clip base is injection-molded using a resin material mainly composed of thermoplastic polyester as a primary material, and a soft thermoplastic polyester elastomer is mainly used as a secondary molding material on its surface or a fitting portion of the surface. A synthetic resin clip integrally molded by injection molding using a resin material to be formed by a double molding or two-color molding method.
を主とする樹脂材料が、曲げ弾性率10000kg/cm2以上で
ある請求項１記載の合成樹脂製クリップ。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 kg / cm 2 or more.
を主とする樹脂材料が、融点230℃以下である請求項１
又は２記載の合成樹脂製クリップ。3. The resin material mainly composed of thermoplastic polyester constituting the primary material has a melting point of 230 ° C. or less.
Or the synthetic resin clip according to 2.
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１〜３の何れか１項記載の合成樹脂製クリッ
プ。4. The thermoplastic polyester constituting the primary material is a polyalkylene terephthalate (alkylene group having 2 to 4 carbon atoms) or a copolymer or a mixture containing the same as a main component. A clip made of a synthetic resin according to the item.
ーを主とする樹脂材料が、曲げ弾性率7000kg/cm2以下で
ある請求項１〜４の何れか１項記載の合成樹脂製クリッ
プ。5. 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 elasticity of 7000 kg / cm 2 or less.
ーを主とする樹脂材料が、ポリオキシアルキレングリコ
ールをソフトセグメントをする軟質熱可塑性ポリエステ
ル共重合体エラストマーである請求項１〜５の何れか１
項記載の合成樹脂製クリップ。6. The resin material mainly comprising a polyester elastomer used for the secondary molding is a soft thermoplastic polyester copolymer elastomer having a soft segment of polyoxyalkylene glycol.
A clip made of a synthetic resin according to the item.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2268073A JP2659273B2 (en) | 1990-10-04 | 1990-10-04 | Synthetic resin clip |
| PCT/JP1991/001340 WO1992006308A1 (en) | 1990-10-04 | 1991-10-03 | Clip made of synthetic resin |
| CA 2070404 CA2070404A1 (en) | 1990-10-04 | 1991-10-03 | Synthetic resin clip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2268073A JP2659273B2 (en) | 1990-10-04 | 1990-10-04 | Synthetic resin clip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04145208A JPH04145208A (en) | 1992-05-19 |
| JP2659273B2 true JP2659273B2 (en) | 1997-09-30 |
Family
ID=17453509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2268073A Expired - Fee Related JP2659273B2 (en) | 1990-10-04 | 1990-10-04 | Synthetic resin clip |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2659273B2 (en) |
| CA (1) | CA2070404A1 (en) |
| WO (1) | WO1992006308A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2714863B1 (en) * | 1994-01-11 | 1996-03-29 | Facom | Tool handle. |
| JPH10318268A (en) * | 1997-03-18 | 1998-12-02 | Nippon Seiko Kk | Seal for rolling bearing |
Family Cites Families (3)
| 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 | ||
| JPH0425528Y2 (en) * | 1988-08-02 | 1992-06-18 |
-
1990
- 1990-10-04 JP JP2268073A patent/JP2659273B2/en not_active Expired - Fee Related
-
1991
- 1991-10-03 CA CA 2070404 patent/CA2070404A1/en not_active Abandoned
- 1991-10-03 WO PCT/JP1991/001340 patent/WO1992006308A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04145208A (en) | 1992-05-19 |
| CA2070404A1 (en) | 1992-04-05 |
| WO1992006308A1 (en) | 1992-04-16 |
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