JP2011080515A - Fastener - Google Patents

Fastener Download PDF

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Publication number
JP2011080515A
JP2011080515A JP2009232280A JP2009232280A JP2011080515A JP 2011080515 A JP2011080515 A JP 2011080515A JP 2009232280 A JP2009232280 A JP 2009232280A JP 2009232280 A JP2009232280 A JP 2009232280A JP 2011080515 A JP2011080515 A JP 2011080515A
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JP
Japan
Prior art keywords
fastener
bush
elastic locking
panel
elastic
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
Application number
JP2009232280A
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Japanese (ja)
Inventor
Yoichi Hirano
陽一 平野
Hiroyuki Yoshii
博行 吉井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nifco Inc
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Nifco Inc
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 Nifco Inc filed Critical Nifco Inc
Priority to JP2009232280A priority Critical patent/JP2011080515A/en
Priority to CN201080045086XA priority patent/CN102549276A/en
Priority to PCT/JP2010/067485 priority patent/WO2011043352A1/en
Publication of JP2011080515A publication Critical patent/JP2011080515A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/06Releasable fastening devices with snap-action
    • F16B21/08Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part
    • F16B21/082Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part the stud, pin or spigot having two resilient parts on its opposite ends in order to connect two elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00Sealing arrangements
    • B60J10/30Sealing arrangements characterised by the fastening means
    • B60J10/36Sealing arrangements characterised by the fastening means using separately inserted fastening means, e.g. using clips, beads or strips

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the lowering of a drawing force of a fastener in reuse by causing a bush to function independently from an elastic locking portion, in the fastener for attaching a different component to a panel. <P>SOLUTION: The fastener 10 includes an insert pin 30. The insert pin 30 includes a head 50 and a leg 60 as an integrated unit. The leg 60 is composed of a strut 70 suspended from the head 50 and the elastic locking portion 80 extending from a lower portion of the strut 70 toward the head 50. The fastener 10 further includes the bush 40 formed of an elastic material having elasticity which is located at least between the outer circumference of the strut 70 of the insert pin 30 and the elastic locking portion 80. The elastic material is a thermoplastic elastomer. The insert pin 30 and the bush 40 are integrally molded. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は、パネルに他の部品を取り付けるための留め具に関し、ブッシュを弾性係止部から独立させて機能させることで、留め具の再利用時の抜去力の低下を減少させることができるようにしたものである。   The present invention relates to a fastener for attaching other components to a panel, and by making the bush function independently from the elastic locking portion, it is possible to reduce a decrease in extraction force when the fastener is reused. It is a thing.

従来、この種の留め具としては、両係止脚片の裏側に、パネルに対する係止脚片の係着力を増強するためのリブがそれぞれ設けられたものが知られている(例えば特許文献1の段落番号「0012」、図1及び図5〜8参照、以下「前者」という。)。
上記した従来のリブは、係止脚片の内側面に、その一端が連結され、そこから内側へ斜めに立ち上がって屈曲部を形成した後、支柱に沿って真っ直ぐ上方へ延び、鍔部の下面に連結されている(例えば特許文献1の段落番号「0012」参照)。
Conventionally, as this type of fastener, there has been known one in which ribs are provided on the back side of both locking leg pieces to increase the engaging force of the locking leg pieces to the panel (for example, Patent Document 1). Paragraph number “0012”, FIG. 1 and FIGS. 5 to 8, hereinafter referred to as “the former”).
The above-mentioned conventional rib is connected to the inner side surface of the locking leg piece, and one end is connected to the inner side of the locking leg piece, and rises diagonally inward to form a bent portion. (See, for example, paragraph number “0012” of Patent Document 1).

また、従来、脚部の外周に、軟質樹脂製のブッシュをはめたものが知られている(例えば特許文献2の2頁右欄18〜25行及び第1〜4図、特許文献3の2頁右欄32〜39行及び第1〜4図参照、以下「後者」という。)   Conventionally, a soft resin bush is fitted on the outer periphery of the leg (for example, Patent Document 2, page 2, right column, lines 18 to 25 and FIGS. 1 to 4, Patent Document 3-2). (Refer to page right column, lines 32 to 39 and FIGS.

特許第3607826号公報Japanese Patent No. 3607826 実公平04-32490号公報No. 04-32490 実公平05-15607号公報No. 05-15607

しかし、上記した従来の前者(特許文献1)のリブは、鍔部の下面や係止脚片の内側面への連結部分に大きな負荷が掛かり、クリープ変形が起こり易く、再利用した場合に、抜去力が低下し易いという問題点があった。
また、上記した従来の後者(特許文献2及び特許文献3)の軟質樹脂製のブッシュは、脚部の外周にはめているため、弾性部(特許文献2)や拡開部(特許文献3)の弾性復元力を補助する機能を持たないという問題点があった。
However, the above-described conventional rib (Patent Document 1) has a large load on the connecting portion to the lower surface of the collar portion and the inner surface of the locking leg piece, and creep deformation is likely to occur. There was a problem that the removal force was likely to decrease.
In addition, since the above-described conventional soft resin bushing of the latter (Patent Document 2 and Patent Document 3) is fitted on the outer periphery of the leg portion, the elastic portion (Patent Document 2) and the expanded portion (Patent Document 3). There is a problem that it does not have a function of assisting the elastic restoring force.

そこで、各請求項にそれぞれ記載された各発明は、上記した従来の技術の有する問題点に鑑みてなされたものであり、その目的とするところは、次の点にある。
(請求項1)
請求項1に記載の発明は、次の点を目的とする。
すなわち、請求項1に記載の発明は、支柱の外周部と弾性係止部との間に弾性材料からなるブッシュを設けることで、弾性係止部の弾性復元力を補助し、抜去力を向上することができるようにしたものである。
Accordingly, each invention described in each claim has been made in view of the problems of the conventional techniques described above, and the object thereof is as follows.
(Claim 1)
The object of the present invention is as follows.
That is, according to the first aspect of the invention, by providing a bush made of an elastic material between the outer peripheral portion of the support column and the elastic locking portion, the elastic restoring force of the elastic locking portion is assisted and the removal force is improved. It is something that can be done.

これに加えて、請求項1に記載の発明によれば、ブッシュを弾性係止部から独立させて機能させることで、留め具の再利用時の抜去力の低下を減少させることができる。
(請求項2)
請求項2に記載の発明は、上記した請求項1に記載の発明の目的に加え、次の点を目的とする。
In addition, according to the first aspect of the present invention, the lowering of the extraction force when the fastener is reused can be reduced by causing the bush to function independently of the elastic locking portion.
(Claim 2)
The second aspect of the invention has the following object in addition to the object of the first aspect of the invention.

すなわち、請求項2に記載の発明は、熱可塑性エラストマーによる弾性効果を得ることができるようにしたものである。
(請求項3)
請求項3に記載の発明は、上記した請求項2に記載の発明の目的に加え、次の点を目的とする。
In other words, the invention according to claim 2 is to make it possible to obtain an elastic effect by the thermoplastic elastomer.
(Claim 3)
The invention described in claim 3 has the following object in addition to the object of the invention described in claim 2 described above.

すなわち、請求項3に記載の発明は、挿入ピンとブッシュとを一体成形することのより、製造工程を短縮させることができるようにしたものである。
(請求項4)
請求項4に記載の発明は、上記した請求項1〜3のいずれか1項に記載の発明の目的に加え、次の点を目的とする。
In other words, the invention according to claim 3 can shorten the manufacturing process by integrally forming the insertion pin and the bush.
(Claim 4)
The invention according to claim 4 has the following object in addition to the object of the invention according to any one of claims 1 to 3.

すなわち、請求項4に記載の発明は、筒形部及びフランジ部を備えたブッシュにより、パネルの取付孔の水密性を向上させることができるにしたものである。   In other words, the invention according to claim 4 is to improve the water tightness of the mounting hole of the panel by the bush having the cylindrical portion and the flange portion.

各請求項にそれぞれ記載された各発明は、上記した各目的を達成するためになされたものであり、各発明の特徴点を図面に示した発明の実施の形態を用いて、以下に説明する。
なお、カッコ内の符号は、発明の実施の形態において用いた符号を示し、本発明の技術的範囲を限定するものではない。
また、図面番号も、発明の実施の形態において用いた図番を示し、本発明の技術的範囲を限定するものではない。
(請求項1)
請求項1に記載の発明は、次の点を特徴とする。
Each invention described in each claim has been made to achieve each of the above-mentioned objects, and features of each invention will be described below using embodiments of the invention shown in the drawings. .
In addition, the code | symbol in parenthesis shows the code | symbol used in embodiment of invention, and does not limit the technical scope of this invention.
Also, the drawing numbers indicate the drawing numbers used in the embodiments of the invention and do not limit the technical scope of the present invention.
(Claim 1)
The invention described in claim 1 is characterized by the following points.

第1に、留め具(10)には、例えば図1〜5に示すように、次の構成を備える。
(1)挿入ピン(30)
第2に、挿入ピン(30)には、例えば図1〜5に示すように、次の構成を一体に備える。
(2)頭部(50)
(3)脚部(60)
第3に、脚部(60)は、例えば図1〜4に示すように、次の構成からなる。
First, the fastener (10) has the following configuration as shown in FIGS.
(1) Insertion pin (30)
Secondly, the insertion pin (30) is integrally provided with the following configuration as shown in FIGS.
(2) Head (50)
(3) Leg (60)
Thirdly, the leg portion (60) has the following configuration as shown in FIGS.

(4)支柱(70)
支柱(70)は、頭部(50)から垂下するものである。
(5)弾性係止部(80)
弾性係止部(80)は、支柱(70)の下部から頭部(50)方向に延びるものである。
第4に、留め具(10)には、例えば図1〜5に示すように、次の構成を備える。
(4) Prop (70)
The column (70) hangs down from the head (50).
(5) Elastic locking part (80)
The elastic locking part (80) extends in the head (50) direction from the lower part of the support post (70).
Fourthly, the fastener (10) has the following configuration as shown in FIGS.

(6)ブッシュ(40)
ブッシュ(40)は、挿入ピン(30)の支柱(70)の外周部と、弾性係止部(80)との間に少なくとも位置し、弾性を有する弾性材料からなるものである。
(請求項2)
請求項2に記載の発明は、上記した請求項1に記載の発明の特徴点に加え、次の点を特徴とする。
(6) Bush (40)
The bush (40) is located at least between the outer peripheral portion of the column (70) of the insertion pin (30) and the elastic locking portion (80), and is made of an elastic material having elasticity.
(Claim 2)
The invention described in claim 2 is characterized by the following points in addition to the characteristics of the invention described in claim 1 described above.

すなわち、弾性材料は、熱可塑性エラストマーである。
(請求項3)
請求項3に記載の発明は、上記した請求項2に記載の発明の特徴点に加え、次の点を特徴とする。
すなわち、挿入ピン(30)とブッシュ(40)とは、例えば図6に示すように、一体成形されている。
(請求項4)
請求項4に記載の発明は、上記した請求項1〜3のいずれか1項に記載の発明の特徴点に加え、次の点を特徴とする。
That is, the elastic material is a thermoplastic elastomer.
(Claim 3)
The invention described in claim 3 has the following features in addition to the features of the invention described in claim 2 described above.
That is, the insertion pin (30) and the bush (40) are integrally formed, for example, as shown in FIG.
(Claim 4)
The invention described in claim 4 is characterized by the following points in addition to the features of the invention described in any one of claims 1-3.

すなわち、ブッシュ(40)には、例えば図1〜5に示すように、次の構成を一体に備える。
(1)筒形部(41)
筒形部(41)は、挿入ピン(30)の支柱(70)にかん合するものである。
(2)フランジ部(42)
フランジ部(42)は、筒形部(41)の上端部から半径方向外向きに張り出し、パネル(20)に開設した取付孔(21)の内径より径の大きなものである。
That is, the bush (40) is integrally provided with the following configuration as shown in FIGS.
(1) Cylindrical part (41)
The cylindrical portion (41) engages with the support post (70) of the insertion pin (30).
(2) Flange part (42)
The flange portion (42) protrudes radially outward from the upper end portion of the cylindrical portion (41) and has a diameter larger than the inner diameter of the mounting hole (21) provided in the panel (20).

本発明は、以上のように構成されているので、以下に記載されるような効果を奏する。
(請求項1)
請求項1に記載の発明によれば、次のような効果を奏する。
すなわち、請求項1に記載の発明によれば、支柱の外周部と弾性係止部との間に弾性材料からなるブッシュを設けることで、弾性係止部の弾性復元力を補助し、抜去力を向上することができる。
Since this invention is comprised as mentioned above, there exists an effect as described below.
(Claim 1)
According to invention of Claim 1, there exist the following effects.
That is, according to the invention described in claim 1, by providing a bush made of an elastic material between the outer peripheral portion of the support column and the elastic locking portion, the elastic restoring force of the elastic locking portion is assisted, and the removal force Can be improved.

これに加えて、請求項1に記載の発明によれば、ブッシュを弾性係止部から独立させて機能させることで、留め具の再利用時の抜去力の低下を減少させることができる。
(請求項2)
請求項2に記載の発明によれば、上記した請求項1に記載の発明の効果に加え、次のような効果を奏する。
In addition, according to the first aspect of the present invention, the lowering of the extraction force when the fastener is reused can be reduced by causing the bush to function independently of the elastic locking portion.
(Claim 2)
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the following effect is obtained.

すなわち、請求項2に記載の発明によれば、熱可塑性エラストマーによる弾性効果を得ることができる。
(請求項3)
請求項3に記載の発明によれば、上記した請求項2に記載の発明の効果に加え、次のような効果を奏する。
That is, according to the second aspect of the invention, the elastic effect of the thermoplastic elastomer can be obtained.
(Claim 3)
According to invention of Claim 3, in addition to the effect of invention of Claim 2, there exist the following effects.

すなわち、請求項3に記載の発明によれば、挿入ピンとブッシュとを一体成形することのより、製造工程を短縮させることができる。
(請求項4)
請求項4に記載の発明によれば、上記した請求項1〜3のいずれか1項に記載の発明の効果に加え、次のような効果を奏する。
That is, according to the third aspect of the invention, the manufacturing process can be shortened by integrally forming the insertion pin and the bush.
(Claim 4)
According to the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1-3, the following effect is provided.

すなわち、請求項4に記載の発明によれば、筒形部及びフランジ部を備えたブッシュにより、パネルの取付孔の水密性を向上させることができる。   That is, according to the invention described in claim 4, the water tightness of the mounting hole of the panel can be improved by the bush having the cylindrical portion and the flange portion.

留め具をパネルに取り付けた状態の断面図である。It is sectional drawing of the state which attached the fastener to the panel. 留め具の斜視図である。It is a perspective view of a fastener. 留め具の一半を断面にした側面図である。It is the side view which made the half of a fastener the cross section. 留め具の一半を断面にした他の側面図である。It is the other side view which made the half of the fastener the cross section. 留め具の平面図である。It is a top view of a fastener. 金型の断面図である。It is sectional drawing of a metal mold | die. 板厚の比較的に薄いパネルに留め具を取り付けた状態の断面図である。It is sectional drawing of the state which attached the fastener to the panel with comparatively thin plate | board thickness. (a)〜(c)は、留め具の取付手順を説明するための説明図である。(A)-(c) is explanatory drawing for demonstrating the attachment procedure of a fastener.

図中、10は、留め具を示し、この留め具10を使用し、自動車のドア回りやトランクルームの開口縁等のパネル20に、ウエザーストリップ等の他の部品を取り付けるために使用される。
なお、パネル20として、自動車のドア回りやトランクルームの開口縁を例示したが、ドア回りやトランクルームの開口縁に限定されないばかりか、自動車用にも限定されない。
In the figure, reference numeral 10 denotes a fastener, and this fastener 10 is used to attach other parts such as a weather strip to a panel 20 such as around a door of an automobile or an opening edge of a trunk room.
Although the panel 20 is illustrated around the door of the automobile and the opening edge of the trunk room, the panel 20 is not limited to the door edge and the opening edge of the trunk room, but is not limited to the automobile.

パネル20には、図1に示すように、当該パネル20の表裏面に貫通した円形の取付孔21を設けている。なお、取付孔21の形状として、円形を例示したが、これに限定されない。
また、パネル20には、図1及び図7に示すように、複数種類有り、例えば板厚の厚いパネル20と、板厚の比較的薄いパネル20aとがある。なお、パネル20,20aの板厚は、2種類に限定されず、3種類以上存在しても良い。
As shown in FIG. 1, the panel 20 is provided with circular mounting holes 21 penetrating the front and back surfaces of the panel 20. In addition, although circular was illustrated as a shape of the attachment hole 21, it is not limited to this.
As shown in FIGS. 1 and 7, there are a plurality of types of panels 20, for example, a panel 20 having a large plate thickness and a panel 20a having a relatively thin plate thickness. The plate thickness of the panels 20 and 20a is not limited to two types, and may be three or more types.

留め具10は、図1〜5に示すように、大別すると、次の各部を備える。
なお、次の(1)及び(2)については、後述する。
(1)挿入ピン30
(2)ブッシュ40
なお、留め具10の各部は、上記した(1)及び(2)に限定されない。
(挿入ピン30)
挿入ピン30は、図1に示すように、パネル20の取付孔21に挿入することで固定され、パネル20の表面から突出する部分に、ウエザーストリップ(図示せず)を取り付けるものである。そして、挿入ピン30は、例えばPOM(ポリオキシメチレン)等の適度な弾性と剛性とを有する比較的な硬質な熱可塑性樹脂で一体的に成形されている。
As shown in FIGS. 1 to 5, the fastener 10 is roughly divided into the following parts.
The following (1) and (2) will be described later.
(1) Insertion pin 30
(2) Bush 40
In addition, each part of the fastener 10 is not limited to the above (1) and (2).
(Insert pin 30)
As shown in FIG. 1, the insertion pin 30 is fixed by being inserted into the mounting hole 21 of the panel 20, and a weather strip (not shown) is attached to a portion protruding from the surface of the panel 20. The insertion pin 30 is integrally formed of a comparatively hard thermoplastic resin having appropriate elasticity and rigidity such as POM (polyoxymethylene).

具体的には、挿入ピン30には、図1〜5に示すように、大別すると、次の各部を備える。
なお、次の(1)及び(2)については、後述する。
(1)頭部50
(2)脚部60
なお、挿入ピン30の各部は、上記した(1)及び(2)に限定されない。
(ブッシュ40)
ブッシュ40は、図1〜5に示すように、挿入ピン30の後述する支柱70の外周部と、同じく後述する弾性係止部80との間に少なくとも位置し、弾性を有する弾性材料からなるものである。弾性材料としては、弾性に富み、挿入ピン30と比較して軟質な、例えばエラストマー等の熱可塑性樹脂が使用されている。ブッシュ40は、後述するが、挿入ピン30に二次成形される。
Specifically, as shown in FIGS. 1 to 5, the insertion pin 30 includes the following parts when roughly classified.
The following (1) and (2) will be described later.
(1) Head 50
(2) Leg 60
In addition, each part of the insertion pin 30 is not limited to above-mentioned (1) and (2).
(Bush 40)
As shown in FIGS. 1 to 5, the bush 40 is located at least between an outer peripheral portion of a post 70 (to be described later) of the insertion pin 30 and an elastic locking portion 80 (to be described later) and is made of an elastic material having elasticity. It is. As the elastic material, thermoplastic resin such as elastomer, which is rich in elasticity and softer than the insertion pin 30, is used. As will be described later, the bush 40 is secondarily formed on the insertion pin 30.

具体的には、ブッシュ40には、図1〜5に示すように、次の各部を備える。
(1)筒形部41
筒形部41は、図1及び図4に示すように、挿入ピン30の後述する支柱70にかん合するものである。
筒形部41の下端部からは、図1〜4に示すように、複数個、例えば4個の脚43,44が90度間隔で延びている。
Specifically, the bush 40 includes the following parts as shown in FIGS.
(1) Cylindrical part 41
As shown in FIGS. 1 and 4, the cylindrical portion 41 engages with a post 70 described later of the insertion pin 30.
As shown in FIGS. 1 to 4, a plurality of, for example, four legs 43 and 44 extend from the lower end of the cylindrical portion 41 at intervals of 90 degrees.

4個の脚43,44のうち、互いに背向する一対の第1脚43は、図1及び図2に示すように、後述する支柱70の外周部と、同じく後述する弾性係止部80との間に位置する。
4個の脚43,44のうち、残る互いに背向する一対の第2脚43は、図2〜4に示すように、第1脚43と90度位相が異なり、第1脚43より長く延びている。
なお、脚43,44を、4個形成したが、これに限定されず、環状に1個形成したり、或いは2個、3個、5個以上形成しても良い。
Of the four legs 43, 44, the pair of first legs 43 facing away from each other includes, as shown in FIGS. 1 and 2, an outer peripheral portion of a post 70 described later and an elastic locking portion 80 also described later. Located between.
Of the four legs 43, 44, the remaining pair of second legs 43 facing away from each other is 90 degrees out of phase with the first leg 43 and extends longer than the first leg 43, as shown in FIGS. ing.
In addition, although the four legs 43 and 44 were formed, it is not limited to this, You may form one in cyclic | annular form, or you may form two, three, five or more.

(2)フランジ部42
フランジ部42は、図1〜5に示すように、筒形部41の上端部から半径方向外向きに環状に張り出し、パネル20に開設した取付孔21の内径より径の大きなものである。
具体的には、フランジ部42の外周縁部は、図2〜4に示すように、斜め下向きに傘形に延び、肉厚を比較的薄く設定し、たわみ易くしている。
(2) Flange part 42
As shown in FIGS. 1 to 5, the flange portion 42 projects in an annular shape outward from the upper end of the tubular portion 41 in the radial direction and has a diameter larger than the inner diameter of the mounting hole 21 provided in the panel 20.
Specifically, as shown in FIGS. 2 to 4, the outer peripheral edge portion of the flange portion 42 extends in an umbrella shape obliquely downward, has a relatively thin wall thickness, and is easily bent.

フランジ部42は、図1及び図7に示すように、板厚の異なる2種類のパネル20,20aの表面に弾性的に密着する。このため、フランジ部42は、シール効果に加え、パネル20,20aの板厚の変化を許容できる。
(頭部50)
頭部50は、図1に示すように、脚部60をパネル20の取付孔21に挿入して固定した状態で、パネル20の表面から上方に向かって突出し、ウエザーストリップ(図示せず)を取り付けるものである。
As shown in FIGS. 1 and 7, the flange portion 42 elastically adheres to the surfaces of the two types of panels 20 and 20 a having different plate thicknesses. For this reason, the flange portion 42 can allow a change in the plate thickness of the panels 20 and 20a in addition to the sealing effect.
(Head 50)
As shown in FIG. 1, the head 50 protrudes upward from the surface of the panel 20 in a state where the leg portion 60 is inserted and fixed in the mounting hole 21 of the panel 20, and a weather strip (not shown) is attached. Attached.

具体的には、頭部50には、図2〜5に示すように、次の各部を備える。
(1)中軸部51
中軸部51は、図2〜4に示すように、円柱形に短く延びている。
(2)張出部52
張出部52は、図3〜5に示すように、中軸部51の下端部から環状に張り出し、ブッシュ40のフランジ部42の上面と接合する。
Specifically, the head 50 includes the following units as shown in FIGS.
(1) Middle shaft part 51
As shown in FIGS. 2 to 4, the middle shaft portion 51 extends in a short column shape.
(2) Overhang 52
As shown in FIGS. 3 to 5, the projecting portion 52 projects annularly from the lower end portion of the middle shaft portion 51 and is joined to the upper surface of the flange portion 42 of the bush 40.

(3)刺入部53
刺入部53は、図2〜5に示すように、中軸部51の下端部からT字形に延び、図5に示すように、上面から見た状態において、両端部が先細状に細くなった略菱形に形成されている。刺入部53は、図示しないが、ウエザーストリップ中に刺し入れられ、埋設状に固定される。
(脚部60)
脚部60は、図1に示すように、パネル20の取付孔21に挿入されることで、パネル20に対して固定されるものである。
(3) Insertion part 53
As shown in FIGS. 2 to 5, the insertion portion 53 extends in a T shape from the lower end portion of the middle shaft portion 51. As shown in FIG. 5, both end portions are tapered in a state viewed from the upper surface. It is formed in a roughly diamond shape. Although not shown, the insertion portion 53 is inserted in a weather strip and fixed in an embedded state.
(Leg 60)
As shown in FIG. 1, the leg portion 60 is fixed to the panel 20 by being inserted into the mounting hole 21 of the panel 20.

具体的には、脚部60には、図1〜4に示すように、次の各部を備える。
(1)支柱70
支柱70は、図1〜4に示すように、頭部50から四角柱形に垂下するものである。
なお、支柱70を、四角柱形に形成したが、これに限らず、例えば円柱形に形成しても良い。
Specifically, as shown in FIGS. 1-4, the leg part 60 is provided with following each part.
(1) Prop 70
As shown in FIGS. 1 to 4, the column 70 hangs down from the head 50 into a quadrangular prism shape.
In addition, although the support | pillar 70 was formed in the square pillar shape, you may form not only in this but in a cylindrical shape, for example.

(2)弾性係止部80
弾性係止部80は、図1〜4に示すように、支柱70の下部から頭部50方向に延びるものである。
具体的には、弾性係止部80は、図2及び図4に示すように、ブッシュ40のフランジ部42の下面に向かって支柱70の下部から略V字形に延びている。また、弾性係止部80は、複数個、例えば一対形成され、刺入部53の突出方向に対して90度位相を異ならせている。一対の弾性係止部80の最大外径は、パネル20の取付孔21の内径より大きく設定されている。
(2) Elastic locking part 80
The elastic latching | locking part 80 is extended in the head 50 direction from the lower part of the support | pillar 70, as shown in FIGS.
Specifically, as shown in FIGS. 2 and 4, the elastic locking portion 80 extends in a substantially V shape from the lower portion of the support column 70 toward the lower surface of the flange portion 42 of the bush 40. In addition, a plurality of, for example, a pair of elastic locking portions 80 are formed, and are 90 degrees out of phase with respect to the protruding direction of the insertion portion 53. The maximum outer diameter of the pair of elastic locking portions 80 is set larger than the inner diameter of the mounting hole 21 of the panel 20.

なお、弾性係止部80を、一対形成したが、これに限定されず、3個以上形成しても良い。
一方、弾性係止部80と支柱70の外周部との間には、図2及び図4に示すように、空間部90が形成され、当該空間部90内に、ブッシュ40の第1脚43が位置する。
また、弾性係止部80には、図2〜4に示すように、次の各部を備える。
Although a pair of elastic locking portions 80 are formed, the present invention is not limited to this, and three or more elastic locking portions 80 may be formed.
On the other hand, as shown in FIGS. 2 and 4, a space portion 90 is formed between the elastic locking portion 80 and the outer peripheral portion of the column 70, and the first leg 43 of the bush 40 is formed in the space portion 90. Is located.
Moreover, the elastic latching | locking part 80 is provided with following each part, as shown to FIGS.

(1)くびれ部81
くびれ部81は、図2及び図4に示すように、弾性係止部80の基端部に位置し、上方から下方に向かって凹状にくびれている。くびれ部81は、弾性係止部80をたわみ易くするものであり、ヒンジとして機能する。
(2)先端凸部82
先端凸部82は、図2及び図4に示すように、弾性係止部80の先端部から凸状に延びている。先端凸部82は、図7に示すように、板厚の比較的薄いパネル20aの取付孔21の内縁部に弾性的に当接することで、ブッシュ40のフランジ部42の下面との間で、パネル20aを表裏面からはさみ持つ。先端凸部82は、後述する先端傾斜部83とともに、パネル20,20aの板厚に対する許容性を持たせるためのものである。
(1) Constriction part 81
As shown in FIGS. 2 and 4, the constricted portion 81 is located at the base end portion of the elastic locking portion 80 and is constricted in a concave shape from the upper side to the lower side. The constricted part 81 makes the elastic locking part 80 bend easily, and functions as a hinge.
(2) Tip convex part 82
As shown in FIGS. 2 and 4, the tip convex portion 82 extends in a convex shape from the tip portion of the elastic locking portion 80. As shown in FIG. 7, the tip protrusion 82 is elastically abutted against the inner edge of the mounting hole 21 of the panel 20a having a relatively thin plate thickness, so that the lower end of the flange portion 42 of the bush 40 is The panel 20a is held between the front and back surfaces. The tip convex portion 82 is for giving tolerance to the plate thickness of the panels 20 and 20a together with the tip inclined portion 83 described later.

(3)先端傾斜部83
先端傾斜部83は、図2及び図4に示すように、弾性係止部80の先端部の外面に形成され、先端凸部82に向かって弾性係止部80の肉厚が徐々に減少するように斜めに傾斜している。先端傾斜部83は、図1に示すように、板厚の比較的厚いパネル20の取付孔21の内縁部に弾性的に当接することで、ブッシュ40のフランジ部42の下面との間で、パネル20を表裏面からはさみ持つ。
(成型方法)
つぎに、図6に示す金型100を用いて、留め具10の成型方法について説明する。
(3) Tip inclined part 83
2 and 4, the tip inclined portion 83 is formed on the outer surface of the tip end portion of the elastic locking portion 80, and the thickness of the elastic locking portion 80 gradually decreases toward the tip convex portion 82. So that it is tilted diagonally. As shown in FIG. 1, the tip inclined portion 83 is elastically abutted against the inner edge portion of the mounting hole 21 of the panel 20 having a relatively large plate thickness, so that the lower surface of the flange portion 42 of the bush 40 is Hold panel 20 from the front and back.
(Molding method)
Next, a method of molding the fastener 10 will be described using the mold 100 shown in FIG.

金型100は、図6に示すように、大別すると、固定側金型110と、可動側金型120とから構成されている。また、図6中、130は、パーティングラインを示し、140はコマ割りラインを示すものである。
まず、固定側金型110と可動側金型120と閉じ、例えばPOM(ポリオキシメチレン)等の比較的に硬質な熱可塑性樹脂を用いて、挿入ピン30を一次成形する。
As shown in FIG. 6, the mold 100 is roughly composed of a fixed mold 110 and a movable mold 120. In FIG. 6, 130 indicates a parting line, and 140 indicates a frame dividing line.
First, the fixed mold 110 and the movable mold 120 are closed, and the insertion pin 30 is primarily molded using a relatively hard thermoplastic resin such as POM (polyoxymethylene).

ついで、エラストマー等の比較的に軟質な熱可塑性樹脂を用いて、ブッシュ40を二次成形して、留め具10とする。
(取付方法)
つぎに、上記した構成を備える留め具10を使用したウエザーストリップ(図示せず)の取付方法について説明する。
Next, the bush 40 is secondarily molded using a relatively soft thermoplastic resin such as an elastomer to form the fastener 10.
(Mounting method)
Next, a method for attaching a weather strip (not shown) using the fastener 10 having the above-described configuration will be described.

まず、図示しないが、挿入ピン30の刺入部53を、ウエザーストリップ中に刺し入れ、埋設状に固定する。
つぎに、挿入ピン30の脚部60を、図8(a)に示すように、パネル20の取付孔21に合わせて挿入する。
脚部60を挿入すると、その一対の弾性係止部80の外側面が、図8(a)に示すように、取付孔21の内縁部に当接する。
First, although not shown, the insertion portion 53 of the insertion pin 30 is inserted into the weather strip and fixed in an embedded state.
Next, the leg portion 60 of the insertion pin 30 is inserted in accordance with the mounting hole 21 of the panel 20 as shown in FIG.
When the leg portion 60 is inserted, the outer side surfaces of the pair of elastic locking portions 80 come into contact with the inner edge portion of the mounting hole 21 as shown in FIG.

ここで、脚部60を強く挿入すると、図8(b)に示すように、一対の弾性係止部80の外側面が取付孔21の内縁部に押されて、互いに接近する方向にたわみ込む。このため、脚部60の外径が縮径し、一対の弾性係止部80が取付孔21を通過する。
このとき、一対の弾性係止部80の内側面が、図8(b)に示すように、ブッシュ40の第1脚43に当接する。第1脚43は、弾性係止部80の内側面に押されて変形して肉厚が薄くなり、復元力を蓄積する。
Here, when the leg portion 60 is strongly inserted, as shown in FIG. 8B, the outer side surfaces of the pair of elastic locking portions 80 are pushed by the inner edge portions of the mounting holes 21 and bend in a direction approaching each other. . Therefore, the outer diameter of the leg portion 60 is reduced, and the pair of elastic locking portions 80 passes through the mounting hole 21.
At this time, the inner side surfaces of the pair of elastic locking portions 80 come into contact with the first legs 43 of the bush 40 as shown in FIG. The first leg 43 is pushed and deformed by the inner surface of the elastic locking portion 80, and the thickness is reduced, and the restoring force is accumulated.

弾性係止部80が取付孔21を通り抜けると、図8(c)に示すように、樹脂の弾性復元力によりパネル20の裏側で復元し、先端傾斜部83が取付孔21の内縁部に弾性的に当接することで、ブッシュ40のフランジ部42の下面との間で、パネル20を表裏面からはさみ持つ。
このため、図示しないが、ウエザーストリップは、留め具10を介してパネル20に固定される。
When the elastic locking portion 80 passes through the mounting hole 21, as shown in FIG. 8 (c), it is restored on the back side of the panel 20 by the elastic restoring force of the resin, and the tip inclined portion 83 is elastically formed on the inner edge portion of the mounting hole 21. The panel 20 is sandwiched between the front and back surfaces between the lower surface of the flange portion 42 of the bush 40 by the abutment.
For this reason, although not shown, the weather strip is fixed to the panel 20 via the fastener 10.

一方、弾性係止部80が復元する際に、弾縮されていた第1脚43が、樹脂の弾性復元力により肉厚が厚くなることで、弾性係止部80の内側面を弾性的に押圧する。
このため、POM(ポリオキシメチレン)等の比較的に硬質な樹脂の復元力に加えて、エラストマー等の比較的に軟質な樹脂の復元力が作用する。
したがって、ブッシュ40の弾性効果により、留め具10を再利用した際、すなわち2回目以降のクリープによる劣化の影響を減少でき、保持力を高い値に維持することができる。
On the other hand, when the elastic locking portion 80 is restored, the elastically elastic first leg 43 is thickened by the elastic restoring force of the resin so that the inner surface of the elastic locking portion 80 is elastically elastic. Press.
For this reason, in addition to the restoring force of a relatively hard resin such as POM (polyoxymethylene), the restoring force of a relatively soft resin such as an elastomer acts.
Therefore, due to the elastic effect of the bush 40, the influence of deterioration due to the second and subsequent creeps can be reduced when the fastener 10 is reused, and the holding force can be maintained at a high value.

一方、図7に示すように、板厚の比較的薄いパネル20aの場合には、取付孔21の内縁部に先端凸部82が弾性的に当接することで、ブッシュ40のフランジ部42の下面との間で、パネル20aを表裏面からはさみ持つ。   On the other hand, as shown in FIG. 7, in the case of the panel 20a having a relatively thin plate thickness, the lower end of the flange portion 42 of the bush 40 is formed by elastically contacting the tip convex portion 82 with the inner edge portion of the mounting hole 21. Between the front and back surfaces of the panel 20a.

10 留め具
20,20a パネル 21 取付孔
30 挿入ピン 40 ブッシュ
41 筒形部 42 フランジ部
43 第1脚 44 第2脚
50 頭部
51 中軸部 52 張出部
53 刺入部
60 脚部 70 支柱
80 弾性係止部
81 くびれ部 82 先端凸部
83 先端傾斜部
90 空間部 100 金型
110 固定側金型 120 可動側金型
130 パーティングライン 140 コマ割りライン
10 Fastener
20,20a Panel 21 mounting hole
30 Insertion pin 40 Bush
41 Tubular part 42 Flange part
43 1st leg 44 2nd leg
50 heads
51 Middle shaft 52 Overhang
53 Insertion
60 legs 70 props
80 Elastic locking part
81 Constricted part 82 Tip convex part
83 Tip slope
90 Space 100 Mold
110 Fixed mold 120 Moving mold
130 Parting line 140 Frame dividing line

Claims (4)

頭部と、
前記頭部から垂下する支柱、及び前記支柱の下部から頭部方向に延びる弾性係止部からなる脚部とを一体に有す挿入ピンを備える留め具であって、
前記留め具には、
前記挿入ピンの前記支柱の外周部と、前記弾性係止部との間に少なくとも位置し、弾性を有する弾性材料からなるブッシュを備えていることを特徴とする留め具。
The head,
A fastener provided with an insertion pin integrally having a column that hangs down from the head, and a leg that consists of an elastic locking part that extends in the head direction from the lower part of the column,
The fastener includes
A fastener comprising a bush made of an elastic material that is located at least between an outer peripheral portion of the support column of the insertion pin and the elastic locking portion.
請求項1に記載の留め具であって、
前記弾性材料は、
熱可塑性エラストマーであることを特徴とする留め具。
The fastener according to claim 1,
The elastic material is
A fastener characterized by being a thermoplastic elastomer.
請求項2に記載の留め具であって、
前記挿入ピンと前記ブッシュとは一体成形されていることを特徴とする留め具。
The fastener according to claim 2,
The fastener, wherein the insertion pin and the bush are integrally formed.
請求項1〜3のいずれか1項に記載の留め具であって、
前記ブッシュには、
前記挿入ピンの前記支柱にかん合する筒形部と、
前記筒形部の上端部から半径方向外向きに張り出し、パネルに開設した取付孔の内径より径の大きなフランジ部とを一体に備えていることを特徴とする留め具。
The fastener according to any one of claims 1 to 3,
In the bush,
A cylindrical portion that mates with the support post of the insertion pin;
A fastener that integrally projects with a flange portion that protrudes radially outward from the upper end portion of the cylindrical portion and has a diameter larger than the inner diameter of the mounting hole provided in the panel.
JP2009232280A 2009-10-06 2009-10-06 Fastener Pending JP2011080515A (en)

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JP2009232280A JP2011080515A (en) 2009-10-06 2009-10-06 Fastener
CN201080045086XA CN102549276A (en) 2009-10-06 2010-10-05 Retainer
PCT/JP2010/067485 WO2011043352A1 (en) 2009-10-06 2010-10-05 Retainer

Applications Claiming Priority (1)

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