JP5154459B2 - Cushion clip - Google Patents

Cushion clip Download PDF

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JP5154459B2
JP5154459B2 JP2009008607A JP2009008607A JP5154459B2 JP 5154459 B2 JP5154459 B2 JP 5154459B2 JP 2009008607 A JP2009008607 A JP 2009008607A JP 2009008607 A JP2009008607 A JP 2009008607A JP 5154459 B2 JP5154459 B2 JP 5154459B2
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portion
cushion
side wall
compression
clip
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JP2010164171A (en
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準弥 鵜飼
晴久 神谷
利夫 岩原
玲子 山本
篤史 小林
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大和化成工業株式会社
トヨタ自動車株式会社
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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
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/36Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • 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
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/36Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F16F1/3732Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having an annular or the like shape, e.g. grommet-type resilient mountings
    • 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
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/36Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/42Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing
    • F16F1/422Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing the stressing resulting in flexion of the spring
    • F16F1/426Radial flexion of ring-type springs
    • 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
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/0472Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by comprising a damping device
    • F16F9/0481Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by comprising a damping device provided in an opening to the exterior atmosphere
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/45Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith

Description

この発明はクッションクリップに関する。 The present invention relates to a cushion clip. 具体的には固定部材と可動部材のいずれかに形成された取付孔に対して係止され、固定部材と可動部材の間に位置して、固定部材に可動部材が接近する際の衝撃を吸収するクッションクリップに関する。 Specifically locked for any which is formed in the mounting hole of the fixed member and the movable member, positioned between the fixed member and the movable member, absorbs the impact when the movable member to approach the fixed member cushion clip to be about.

この種のクッションクリップには、衝撃を吸収するクッション部と固定部材または可動部材に形成された取付孔に係止させるための係止部とが一体化された構成とされているものがある。 This kind of cushion clips, are those with the locking portion for locked to the mounting hole formed in the fixed member or the movable member and the cushion section for absorbing the impact is the integrated configuration. そして、この構成のクッションクリップでは、クッション部が軟質樹脂材により中空の略円筒形状に形成されており、固定部材に可動部材が接近すると、固定部材と可動部材の間でクッションクリップのクッション部が弾性変形により押し縮められて、衝撃を吸収する。 Then, the cushion clip of this configuration, the cushion portion is formed in a substantially cylindrical hollow of a soft resin material, the movable member to the fixing member approaches, the cushion portion of the cushion clip between the fixed member and the movable member and contracted pressing by the elastic deformation to absorb the impact.

先行技術として、特開2006−153083号公報(特許文献1)には、クッション部が中空とされクッション部の底部に凸部が形成されたクッションクリップが記載されている。 As prior art, Japanese 2006-153083 (Patent Document 1), a cushion clip having a convex portion formed in the bottom of the cushion portion is the cushion portion and the hollow is described. また、特開2007−225093号公報(特許文献2)には、クッション部の側壁が蛇腹状とされクッション部の底部に突起が形成されたクッションクリップが記載されている。 Further, Japanese Patent 2007-225093 (Patent Document 2), the side wall of the cushion portion is described cushion clip projections are formed on the bottom of the bellows and is cushion portion.

図7に特許文献1に記載されたクッションクリップとほぼ同一の構成のクッションクリップ101の一部断面による正面図を示す。 It shows a front view according to substantially a portion cross section of a cushion clip 101 having the same configuration as the cushion clip described in Patent Document 1 in FIG. クッションクリップ101は、衝撃を吸収するクッション部110と、クッション部110を固定部材に取付けるための係止部120とを備えており、クッション部110は弾性を有する軟質材で形成され、係止部120は所定の剛性を有する硬質材で形成されている。 Cushion clip 101 includes a cushion 110 to absorb the impact, and a locking portion 120 for mounting the cushion unit 110 to the fixing member, the cushion unit 110 is formed of a soft material having elasticity, the locking portion 120 is formed of a hard material having a predetermined rigidity. そして、クッション部110の側壁部112の外形は略円錐状とされており、クッション部110の内部には空洞部140が形成されており、空洞部140の側壁180はほぼ垂直とされている。 Then, the outer shape of the side wall portion 112 of the cushion portion 110 is a substantially conical shape, the interior of the cushion portion 110 are hollow portion 140 is formed, the side wall 180 of the cavity 140 is substantially perpendicular. そして、空洞部140には先端側に向けて開口する略円形の開口部160が設けられており、空洞部140の基底部には、先端側に向けて突出する凸部190が設けられている。 Then, the hollow portion 140 is provided with a substantially circular opening 160 which opens toward the distal end side, the base of the cavity 140, protrusion 190 is provided projecting toward the distal end side .

ところで、特許文献1に記載されたクッションクリップ101は、自動車部品であるグラブボックスの蓋を閉じる時の衝撃を吸収するためのものである。 Meanwhile, cushion clip 101 described in Patent Document 1 is for absorbing the impact when closing the lid of the glove box is an automobile part. そして、グラブボックスに用いられるクッションクリップは次の役割を担っている。 Then, a cushion clip used in the glove box has the following roles.
(1)走行時の車の揺れによりグラブドアが振動することを防ぐ。 (1) preventing the glove door is vibrated by car shaking during running.
(2)手や肘などでグラブドアを強く押した場合にもドアとボックスが直接当たることを防ぎ、異音の発生やグラブドアおよびグラブボックスの傷つきを防止する。 (2) even if you press strongly the glove box door with your hand or elbow prevents hitting door and the box directly, to prevent the damage of the abnormal noise and the glove box door and glove box.
(3)グラブドアの建付けのばらつきやロック機構によるガタツキを吸収して、グラブドアの開閉ができる。 (3) absorbs the backlash due to construction with the variations and the locking mechanism of the glove box door can open and close the glove door.
(4)グラブドアを開いた時にクッションクリップが見えても大きさ、形が不快でない。 (4) the glove box door a cushion clip size may appear is when you open, the form is not unpleasant.

そこで、上述の各役割を果たすために、グラブボックスに用いられるクッションクリップは次の特性を有することが必要となる。 Therefore, since each role described above, a cushion clip used in the glove box is necessary to have the following characteristics.
(1)グラブドアを閉じた状態では振動に耐えうる十分な反力がある。 (1) in the closed state of the glove door has sufficient reaction force to withstand the vibrations.
(2)大荷重の入力時には大きな反力を出す。 (2) issues a large reaction force at the time of input of a large load.
(3)どの建付けでも必要な反力が得られるよう、圧縮量の変化による反力の変化が少ない。 (3) How the necessary reaction force in construction with is obtained, the less change in the reaction force due to a change in the amount of compression.
(4)小型であり、かつ、いびつでない。 (4) a small, and not distorted.
そして、この特性を満たせない場合は、グラブドアが振動して異音が発生する、あるいはグラブドアが閉まらない等の問題が発生する。 When not meet this characteristic, glove box door is abnormal noise and vibration, or glove door problem occurs such that not close.

そこで、この種のクッションクリップには、反力荷重と圧縮量の関係について、次の特性を有することが求められる。 Therefore, the cushion clip of this type, the relationship between reaction force loads and the amount of compression is required to have the following characteristics.
(1)圧縮初期は、早期に必要な反力が得られるよう、圧縮量当たりの反力の増加が大きいこと。 (1) Compression early, so that the reaction force required for early as possible, that the increase of the reaction force per compression amount is large.
(2)必要な反力が得られた後の圧縮中期は、圧縮量当たりの反力の増加量を抑えられること。 (2) compression metaphase after the reaction force is obtained necessary, can be suppressed the increase of the reaction force per amount of compression.
(3)大きな圧縮幅がとれた後の圧縮後期は、圧縮量当たりの反力増加量を大きくすること。 (3) compressing late after large compression width is taken is to increase the reaction force increase amount per amount of compression.
図8に、上述した反力荷重と圧縮量の関係を、理想荷重線として示す。 8, the amount of compression of the relationship between reaction force loads as described above, shown as an ideal load line. 図8のb点における反力荷重は最低反力荷重を示しており、車両の揺れによりグラブドアが振動して異音が発生するのを押さえることができる大きさを有する。 Reaction force loads at point b in FIG. 8 shows the minimum reaction force loads, has a magnitude by vibration glove door by swinging of the vehicle can be suppressed from abnormal noise. そして、図8のe点における反力荷重は最高反力荷重を示しており、グラブドアのロックが解除できなくなり、開かなくなる大きさを有する。 Then, the reaction force load in point e in FIG. 8 shows the maximum reaction force loads, can no longer be unlocked in the glove box door, having a size no longer open. 最高反力荷重を越えてクッションクリップの反力が大きくなると、グラブドアを開かないようにロックしているピンの摩擦が増えて、大きな力でグラブドアのドアノブを引っ張らないとグラブドアが開かなくなる。 When the reaction force of the cushion clip is increased beyond the maximum reaction force load, increasing the friction of the pin that is locked so as not to open the glove box door, glove box door is not opened and do not pull on the doorknob of the glove box door with a large force.
このb点の最低反力荷重とe点の最高反力荷重の間が使用したい荷重の範囲であり、この間の圧縮量が大きいほど、ドアの建て付けのばらつきに対する対応幅が広くなる。 During this maximum reaction force load of minimum reaction force loads and point e point b is in the range of the load to be used, the greater this period of the compression amount, the corresponding width increases with respect to built with variations in the door. なお、以下の説明では、最低反力荷重と最高反力荷重の間の圧縮量をクッションクリップのストロークと呼ぶ。 In the following description, the amount of compression between the lowest reaction force loads and the maximum reaction force load is referred to as a stroke of the cushion clip.

特開2006−153083号公報 JP 2006-153083 JP 特開2007−225093号公報 JP 2007-225093 JP

ところで、特許文献1に記載のクッションクリップ101は、側壁部112および凸部190の圧縮により反力を得る仕組みであるため、反力は圧縮量の増加に伴いその積分値として増加する。 Meanwhile, cushion clip 101 described in Patent Document 1, since a mechanism for obtaining a reaction force by the compression of the side wall portions 112 and the protrusions 190, the reaction force increases as the integrated value with the increase of the compression amount. そのため、圧縮量当たりの反力の増加が多く、圧縮中期の圧縮量は理想荷重線の半分程度であって、ドアの建て付けのばらつきに対する対応幅が狭いという問題がある。 Therefore, many increase of the reaction force per compression amount, the amount of compression of the compression medium-term is a about half the ideal load line, the corresponding width to built with variations in the door there is a problem that narrow. そして、圧縮中期を越えてさらに圧縮しようとすると、クッション部の側壁が底部の凸部に干渉して反力荷重が高くなり、圧縮が困難となる。 Then, an attempt to further compressed beyond the compression metaphase, the side wall of the cushion unit is increased reaction force load interferes with the protrusion of the bottom portion, the compression becomes difficult. また、特許文献2に記載のクッションクリップも荷重線の圧縮中期の圧縮量が理想荷重線の半分程度であり、圧縮中期における圧縮でクッション部の側壁の蛇腹同士が当たって粘着音が発生し、さらに圧縮量を大きくすると側壁が底部の支柱に干渉して圧縮荷重が高くなり、圧縮が困難となる。 Further, the amount of compression of the compression medium-term cushion clips load lines described in Patent Document 2 is about half the ideal load line, the pressure-sensitive sound hit the bellows between the side wall of the cushion portion is generated in the compression in the compression metaphase, further side walls when the amount of compression is greatly interfere with the strut of the bottom compression load becomes higher, the compression becomes difficult.

そこで、ストロークを確保するために、従来技術のクッションクリップの円筒状の側壁の長さを伸ばしてクッション部を縦長形状とすると、圧縮の途中でクッション部のバランスが崩れて、クッション部が途中でへの字に折れ曲がってしまう。 Therefore, in order to ensure a stroke, when stretched the length of the cylindrical side wall of the cushion clip of the prior art and elongated shape cushion portion, collapses the balance of the cushion unit is in the middle of compression, the cushion unit is in the middle It would bent to shape to. そのため、最後まで縦方向に圧縮できず必要な反発力が得られないため、衝撃を吸収することができない。 Therefore, because the last no longitudinal necessary repulsive force can not be compressed to obtain up, it is impossible to absorb the impact.
そして、クッション部のバランスが崩れないようにするためには、クッション部の長さと共にクッション部の底部の直径も大きくしてクッションクリップ全体を大型化しなければならず、クッションクリップの搭載スペースを広く取ることが必要となる。 Then, in order to balance the cushion portion does not collapse has to increase the size of the entire cushion clips larger diameter of the bottom portion of the cushion unit with the length of the cushion portion, a wide mounting space for a cushion clip it is necessary to take. しかし、クッションクリップの搭載スペースを広く取ることは設計の制約で困難な場合もある。 However, taking a wide mounting space of the cushion clip is sometimes difficult in the design constraints. また、クッションクリップを大型化すると見栄えも良くない。 Also, not good-looking to increase the size of the cushion clip.

そこで、本発明が解決しようとする課題は、クッションクリップの大型化によらず、ストロークが長く、かつ、途中で折れ曲がることなく必要な反発力が得られるクッションクリップを提供することにある。 Therefore, an object of the present invention is to provide, regardless of the size of the cushion clip, stroke is long, and is to provide a cushion clip repulsive force can be obtained need not be bent in the middle.

上記課題を解決するため、本発明にかかるクッションクリップは次の手段をとる。 To solve the above problems, a cushion clip according to the present invention takes the following means.
本発明は 、固定部材と可動部材のいずれかに形成された取付孔に対して係止され、固定部材と可動部材の間に位置して、固定部材に可動部材が接近する際の衝撃を吸収するクッションクリップであって、 This onset Ming is locked for any which is formed in the mounting hole of the fixed member and the movable member, positioned between the fixed member and the movable member, the impact when the movable member to approach the fixed member a cushion clip to absorb,
衝撃を吸収するクッション部と前記取付孔に係止させるための係止部とが一体化された構成とされており、 Impact are configured to a locking portion for the cushion portion engaged with the mounting holes are integrated to absorb,
前記クッション部は底部と側壁部とを備えた中空形状とされ、該側壁部の内側壁および外側壁は底部側から先端に向かって縮径する円錐形状とされ、該側壁部の外側壁は高さ方向に直線状とされており、 The cushion portion is a hollow shape with a bottom and a side wall portion, the inner and outer walls of the side wall portion is a conical shape whose diameter decreases toward the front end from the bottom side, the outer wall of the side wall height It is straight in the direction,
前記側壁部の先端には、内側壁が径方向内側に張り出し中央に円形の開口孔が設けられた頂上部が形成されており、 Wherein the distal end of the side wall portion, which is the top part a circular opening hole is provided is formed in the center projecting inner walls radially inwardly,
前記側壁部の肉厚は底部側から先端に向かって薄くなり、 The thickness of the sidewall portion becomes thinner toward the tip from the bottom side,
前記頂上部の下端の径方向の肉厚が前記側壁部の上部の径方向の肉厚よりも厚くされることで、クッション部にかかる荷重に対して該側壁部の上部が最も撓みやすくされており、荷重が増加すると、該側壁部は屈曲変形し、その屈曲部位が該側壁部の先端から底部へと移動するように構成されている By radial thickness of the lower end of the top portion is thicker than the thickness of the upper portion of the radial direction of the side wall portion, it is most readily deflection upper portion of the side wall portion against a load applied to the cushion unit , when the load is increased, the side wall portion is bent and deformed, the bent portion is configured to move to the bottom from the front end of the side wall portion.

の発明によれば、初期の圧縮の段階では円錐状とされた側壁部の外側壁は圧縮方向に直線状であるため突っ張り、圧縮初期の荷重が立ち上がる。 According to inventions of this, the outer wall of the side wall portion that is conical at the stage of initial compression strut for a straight in the compression direction, the load of the compression initial rises. そして、クッション部の側壁部が外側に張り出して円筒状に変形する。 Then, the side wall portions of the cushion portion is deformed into a cylindrical shape projecting outwardly. さらに荷重が増加すると、円筒状に張り出していた側壁部が内側に丸められるように曲がりながら圧縮され、反力荷重が僅かに増加して圧縮量が増大する。 Further when the load is increased, the side wall portion which has been projecting cylindrically is compressed to curve to be rounded inwardly, the reaction force load is the amount of compression increases slightly increases. そして、クッション部の側壁部がクッション部の底部に当たるまでは曲げにより圧縮が進むため、圧縮抵抗が急激に増大することはないので、ストロークが長い。 Then, since the side wall portion of the cushion portion is compressed by the bending proceeds until it touches the bottom of the cushion portion, the compression resistance is not increased rapidly, long stroke.
よって、クッションクリップの大型化によらず、ストロークが長く、かつ、途中で折れ曲がることなく必要な反発力を得られるクッションクリップを提供することができる。 Therefore, regardless of the size of the cushion clip, stroke is long, and can provide a cushion clip obtained the required repulsion without bent in the middle.

また、の発明によれば、側壁部は上方ほど薄く曲がりやすい構成のため、側壁部の屈曲部位は側壁部の上方から下方に移動して、側壁部の曲げによりクッション部の圧縮が進む。 Further, according to the inventions of this, the side wall portion because the thin pliable structure as above, the bent portion of the side wall is moved from the upper side wall portion downward, the cushion portion compression proceeds by bending of the side wall portions . よって、クッションクリップの大型化によらず、ストロークが長く、かつ、途中で折れ曲がることなく必要な反発力を得られるクッションクリップを提供することができる。 Therefore, regardless of the size of the cushion clip, stroke is long, and can provide a cushion clip obtained the required repulsion without bent in the middle.

上述の本発明によれば、次の効果が得られる。 According to the onset Ming above, the following effects can be obtained. すなわち、本発明によれば、側壁部の屈曲部位は側壁部の上方から下方に移動し、側壁部の曲げによりクッション部の圧縮が進む。 That is, according to the present invention, the bent portion of the side wall is moved from the upper side wall portion downward, the cushion portion compression proceeds by bending of the side wall portion. よって、クッションクリップの大型化によらず、ストロークが長く、かつ、途中で折れ曲がることなく必要な反発力を得られるクッションクリップを提供することができる。 Therefore, regardless of the size of the cushion clip, stroke is long, and can provide a cushion clip obtained the required repulsion without bent in the middle.

一実施例におけるクッションクリップの外観斜視図である。 It is an external perspective view of the cushion clip according to one embodiment. 一実施例におけるクッションクリップの縦断面図である。 It is a longitudinal sectional view of the cushion clip according to one embodiment. 一実施例におけるクッションクリップの圧縮初期における変形状態を示す縦断面図である。 It is a longitudinal sectional view showing a deformed state in the compression initial cushioning clip according to one embodiment. 一実施例におけるクッションクリップの圧縮中期の初期段階における変形状態を示す縦断面図である。 It is a longitudinal sectional view showing a deformed state in the initial stage of the compression mid cushion clip according to one embodiment. 一実施例におけるクッションクリップの圧縮中期における変形状態を示す縦断面図である。 It is a longitudinal sectional view showing a deformed state in the compression metaphase of the cushion clip according to one embodiment. 一実施例におけるクッションクリップの圧縮中期の最終段階における変形状態を示す縦断面図である。 It is a longitudinal sectional view showing a deformed state in the final stage of compression mid cushion clip according to one embodiment. 従来技術によるクッションクリップの一部断面による正面図である。 It is a front view according to some section of the cushion clip according to the prior art. ストローク量の大きいクッションクリップの理想荷重線を示す図である。 Is a diagram illustrating an ideal load line of high cushion clip stroke.

以下、本発明を実施するための形態について実施例にしたがって説明する。 It will be described below with reference to examples for embodiments of the present invention.
図1に本発明の一実施例におけるクッションクリップ10の外観斜視図を示す。 It shows a perspective view of the cushion clip 10 in one embodiment of the present invention in FIG. クッションクリップ10は、自動車のグラブボックスのボックス本体50(図3参照)に形成された取付孔52(図3参照)に係止されて、グラブボックスのボックス本体50とドア54(図3参照)の間に位置して、ドア54を閉めた時の衝撃を吸収するクッションクリップである。 Cushion clip 10, the box body 50 of the automobile glove compartment is engaged with the mounting hole 52 formed in (see FIG. 3) (see FIG. 3), the glove compartment box body 50 and the door 54 (see FIG. 3) located between a cushion clip to absorb the impact when closing the door 54. そして、衝撃を吸収するクッション部20と取付孔52に係止させる係止部40が一体化された構成とされている。 The locking portion 40 engaged to the cushion portion 20 and the mounting holes 52 to absorb the impact is the integrated configuration. ボックス本体50が本発明の固定部材に相当し、ドア54が本発明の可動部材に相当する。 Box body 50 corresponds to a fixing member of the present invention, the door 54 correspond to the movable member of the present invention.

図2にクッションクリップ10の縦断面図を示す。 It shows a longitudinal sectional view of the cushion clip 10 in Figure 2. クッションクリップ10のクッション部20は底部24と側壁部22とを備えた中空形状とされ、側壁部22の内側壁28および外側壁26は底部側から先端に向かって直線的に縮径する円錐形状とされている。 Cushion portion 20 of the cushion clip 10 is a hollow shape with a bottom 24 and the side wall portion 22, the conical inner wall 28 and outer wall 26 of the side wall portion 22 is linearly reduced in diameter toward the front end from the bottom side shape there is a. そして、側壁部22の肉厚は底部側から先端に向かって薄くなる構成とされており、側壁部22の先端には、内側壁28が径方向内側に張り出し中央に円形の開口孔25が設けられた頂上部30が形成されており、開口孔25の下方には中空部32が形成されている。 Then, the thickness of the side wall portion 22 is configured to become thinner toward the distal end from the bottom side, the tip end of the side wall portion 22, a circular opening hole 25 is provided in the central projecting inner wall 28 radially inwardly was top portion 30 is formed, the hollow portion 32 is formed below the openings 25.
そして、頂上部30は内側壁28が径方向内側に張り出した構成のため、頂上部30の下端の径方向の肉厚は、頂上部30の下方に続く側壁部22の上部の肉厚よりも厚い構成とされている。 Since the top portion 30 of the structure inner wall 28 protruding radially inward, radial thickness of the lower end of the top portion 30, than the thickness of the upper portion of the side wall portion 22 following the lower portion of the top portion 30 there is a thick configuration.
そして、図1及び図2に示すとおり、側壁部22には、底部24に近い箇所において内外に通じるエア抜き孔23が形成されている。 Then, as shown in FIGS. 1 and 2, the side wall portion 22, air vent holes 23 communicating with the inside and outside it is formed at a portion close to the bottom 24. なお、エア抜き孔23は、クッション部20の変形特性に影響を与えない構成とされている。 The air vent hole 23 is configured so as not to affect the deformation characteristics of the cushion unit 20.

クッションクリップ10の係止部40は、図2に示すように、クッション部20の底部24に埋め込まれた円板形状の基部42と、下方に突出しボックス本体50(図3参照)の取付孔52(図3参照)に挿入される係止脚44とを備えている。 Engaging portion of the cushion clip 10 40, as shown in FIG. 2, the mounting holes 52 of the base 42 of the disc-shaped embedded in the bottom 24 of the cushion portion 20, the box body 50 protruding downward (see FIG. 3) and a locking leg 44 which is inserted (see FIG. 3).
そして、クッション部20はエラストマで形成され、係止部40はポリプロピレンで形成されて、クッション部20と係止部40が2色成形により一体化された構成とされている。 Then, the cushion portion 20 is formed with an elastomer, the locking portion 40 is formed of polypropylene, the cushion portion 20 and the locking portion 40 is integrated with the configuration by two-color molding.

図3〜図6にボックス本体50に取付けられたクッションクリップ10の変形状態を表す縦断面図を示す。 It shows a longitudinal sectional view showing a deformed state of the cushion clip 10 attached to the box body 50 in FIGS. 3 to 6.
図3はドア54がクッション部20に当たり、クッション部20の圧縮を開始した直後の圧縮初期の段階で、図8のa点とb点の間に対応する変形状態を示している。 3 hits the door 54 cushion unit 20, the compression initial stage immediately after the start of the compression of the cushion portion 20, it shows a deformed state corresponding to between point a and point b in FIG. 8. この段階では側壁部22の外側壁26が圧縮方向に直線状から円弧状に変形して突っ張り、圧縮量にほぼ比例した状態で反力荷重が立ち上がる。 Brace outer wall 26 of the side wall portion 22 at this stage is deformed in an arc shape from the straight direction of compression, the reaction force load rises in a state that is substantially proportional to the amount of compression.

図4は、圧縮初期の段階が終わり、クッション部20の側壁部22が円筒状に変形した状態を示している。 4, compression initial stage ends and the side wall portion 22 of the cushion portion 20 indicates the deformed state into a cylindrical shape. 図8のb点とc点の間に対応する変形状態である。 A deformed state corresponding to between point b and point c in FIG. 8. クッションクリップ10のクッション部20の側壁部22は、外側壁26及び内側壁28が上方に向かって縮径する円錐形状であり、側壁部22の肉厚が底部から先端に向かって薄くなる構成とされている。 The side wall portion 22 of the cushion portion 20 of the cushion clip 10 is a conical outer wall 26 and inner wall 28 is reduced in diameter upward, the configuration the thickness of the side wall portion 22 becomes thin toward the tip from the bottom It is. そして、クッション部20の頂上部30の下端の径方向の肉厚は、頂上部30の下方に続く側壁部22の上部の肉厚よりも厚い。 The radial thickness of the lower end of the top portion 30 of the cushion portion 20 is thicker than the thickness of the upper portion of the side wall portion 22 following the lower portion of the top portion 30. そのため、クッション部20は側壁部22の上部が最も撓みやすい構成とされている。 Therefore, the cushion unit 20 is most easily bent configuration the upper portion of the side wall portion 22. そこで、側壁部22の突っ張りにより圧縮初期の荷重が立ち上がった後、圧縮中期の初期の段階ではクッション部20の頂上部30のすぐ下の側壁部22が高さ方向の断面で見て円弧状に撓み、クッション部20の頂上部30が押し下げられて内側に丸められるように変形する。 Accordingly, after the rise of the load of compression initial by bracing of the side wall portion 22, at an early stage of the compression mid arcuately seen immediately sidewall portion 22 the height direction of the cross section below the top portion 30 of the cushion portion 20 bending, the top portion 30 of the cushion portion 20 is pressed down deformed to rounded inward. そして、さらに下方の側壁部22は壁面が圧縮方向に直線状であって下方に向かって肉厚となる構成のため、圧縮方向に撓むことなく突っ張り、側壁部22が外側に張り出す。 The further side wall portion 22 of the lower because the structure wall is thick downward be linear in the compression direction, struts without flexing in the compression direction, the side wall portion 22 protrudes outward. そのため、クッション部20の側壁部22が円筒状に変形する。 Therefore, the side wall portion 22 of the cushion portion 20 is deformed into a cylindrical shape.

図5にドア54が閉められ、図示しないロック機構が働いてドア54がボックス本体50にロックされた状態におけるクッション部20の変形状態を示す。 Door 54 is closed in FIG. 5 shows the deformation of the cushion portion 20 of the door 54 at work lock mechanism (not shown) is locked to the box body 50. 圧縮中期で、図8のc点とd点の間に対応する変形状態である。 In compression metaphase, it is a deformed state corresponding to between points c and d in FIG. 8.
図4に示した状態からさらに荷重が増加すると、円筒状に突っ張っていた側壁部22が内側に丸められるように曲がりながら変形する。 Further the load is increased from the state shown in FIG. 4, the side wall portion 22 which has been taut in a cylindrical shape is deformed while bending to be rounded inwardly. ここで、クッション部20の側壁部22は上方ほど薄いため曲がりやすい。 Here, the side wall portion 22 of the cushion portion 20 easy to bend because thinner upward. そして、側壁部22は下方ほど肉厚で径も大きくなるため、曲げに対する抗力は側壁部22の下方ほど大きくなる。 Then, the side wall portion 22 since the diameter also increases in thickness as the lower, drag increases as the lower side wall portion 22 against bending. そこで、側壁部22が曲がり始めると、側壁部22の屈曲部位は上方から下方へと移動し、反力荷重が僅かに増加しながら圧縮量が増大する。 Therefore, starting bending the side wall portion 22, the bent portion of the side wall portion 22 is moved downward from above, the amount of compression is increased while the reaction force load is increased slightly. ここで、クッションクリップ10ではクッション部20の内側の中空部32には突起等の障害物がないので、側壁部22がクッション部20の底部24に当たるまでは曲げ特性により変形し、反力荷重が急激に増大することはない。 Here, since there is no obstacle such as projections on the inside of the hollow portion 32 of the cushion clip 10 in the cushion portion 20, deformed by bending characteristics to the sidewall portion 22 hits the bottom 24 of the cushion portion 20, a reaction force load It does not increase rapidly. そして、反力荷重が僅かに増加する状態でクッション部20の圧縮が進み、側壁部22が底部24に当たる前に、図5に示した状態でドア54のロックが終了する。 The compression of the cushion portion 20 in a state where the reaction force load increases slightly advances, before the side wall part 22 hits the bottom 24, the lock of the door 54 in the state shown ends in FIG.

ドア54がロックされた状態で、ドア54がさらに押されると、図6に示すようにクッション部20の頂上部30がクッション部20の底部24に当たった状態となる。 In a state where the door 54 is locked, the door 54 is further pushed, a state where the top portion 30 of the cushion portion 20 hits the bottom 24 of the cushion portion 20, as shown in FIG. 図6は圧縮中期の最終段階の変形状態を示しており、図8のe点に対応する変形状態である。 6 shows a deformation state of the final stage of the compression medium term, a deformed state corresponding to point e in FIG. 8. 図6の状態からさらに圧縮しようとすると、曲げ特性による変形から圧縮特性による変形に変化するため、反力荷重が急激に大きくなる。 Further to be compressed from the state of FIG. 6, for varying the deformation by the compression characteristics of deformation by bending properties, the reaction force load rapidly increases.

上述の一実施例によれば、クッション部が圧縮初期は突っ張り、圧縮中期は曲げ特性で屈曲部位が上方から下方へ移動する構成のため、クッションクリップの大型化によらず、ストロークが長く、かつ、途中で折れ曲がることなく必要な反発力を得られるクッションクリップを提供することができる。 According to the foregoing embodiment, the initial cushion portion is compressed strut, due to the configuration of the bending portion in a compressed mid bending properties moves from top to bottom, regardless of the size of the cushion clip, stroke is long, and , it is possible to provide a cushion clip obtained the required repulsion without bent in the middle.

上述の一実施例では、クッション部20の側壁部22の肉厚が底部側から先端に向かって薄くなる構成としたが、側壁部22の肉厚を高さ方向で一定とすることもできる。 In the foregoing embodiment, the thickness of the side wall portion 22 of the cushion portion 20 has been become thinner configuration toward the tip from the bottom side, it can also be a constant wall thickness of the side wall portion 22 in the height direction. 側壁部22の肉厚を一定としても、側壁部は上方に向けて縮径しているので、上方ほど側壁部22の断面積が小さく曲がりやすい特性を有するため、圧縮中期では曲げ特性で屈曲部位が上方から下方へと移動するので、クッションクリップの大型化によらず、ストロークが長く、かつ、途中で折れ曲がることなく必要な反発力を得られるクッションクリップを提供することができる。 Even constant thickness of the side wall portion 22, the side wall is reduced in diameter upward, to have a sectional area smaller bend sensitive characteristics of the upper about the side wall portion 22, bent portion bending characteristics in compression metaphase since but moves from the top downward, regardless of the size of the cushion clip, stroke is long, and can provide a cushion clip obtained the required repulsion without bent in the middle.

そして、上述の一実施例によれば、クッション部はエラストマにより形成されているため軟質で、衝撃を吸収して弾性変形するのに適しており、係止部はポリプロピレンで形成されているため剛性が高く、取付孔への係止が安定する。 Then, according to the foregoing embodiment, a soft since the cushioning portion is formed of elastomer, and absorb shock are suitable for elastic deformation, since the engaging portion is formed of polypropylene rigid high, engagement of the mounting hole is stabilized. そして、クッション部と係止部は2色成形により一体化されているので、クッション部と係止部の結合が強固であって一体化の構造が安定しており、取り扱いが容易である。 Since the cushion portion and the locking portion are integrated by two-color molding, the structure of the integrated bond is a firm cushion portion and the locking portion is stable and easy to handle.

上述の一実施例では、クッション部をエラストマで形成し、係止部をポリプロピレンで形成し、2色成形によりクッション部と係止部を一体化しているが、本発明に係るクッションクリップの材質及びクッション部と係止部の一体化方法はこれに限定されない。 In the foregoing embodiment, the cushion portion is formed of elastomer, the locking portion is formed of polypropylene, although integrated cushion portion and the locking portion by two-color molding, the material and the cushion clip according to the present invention integrated method of the cushion portion and the locking portion is not limited to this.
クッション部をゴムや軟質の樹脂材で形成し、係止部を硬質の樹脂材、例えばポリアセタールで形成して、多色成形あるいはインサート成形によりクッション部と係止部を一体化しても良い。 The cushion portion is formed of a resin material rubber or soft resin material hard an engagement portion, for example, it is formed by a polyacetal, a multicolor molding or insert molding may be integrated cushion portion and the locking portion.

また、クッション部と係止部をゴムまたはエラストマ等の軟質の樹脂材により一色成形によって形成しても良い。 It may also be a cushion portion and the locking portion formed by color forming by a resin material of a soft, such as rubber or elastomer. 一色成形とすれば、製造工程が単純化され、金型等のコストの低減を図ることができる。 If color molding, the manufacturing process is simplified, it is possible to reduce the cost of the mold or the like.
その他、本発明に係るクッションクリップはその発明の思想の範囲で、各種の形態で実施できるものである。 Other cushion clip according to the present invention in the range of spirit of the invention are those which can be implemented in various forms.

10 クッションクリップ20 クッション部22 側壁部23 エア抜き孔24 底部25 開口孔26 外側壁28 内側壁30 頂上部32 中空部40 係止部42 基部44 係止脚50 ボックス本体(固定部材) 10 cushion clip 20 cushion portion 22 side wall 23 air vent holes 24 bottom 25 openings 26 outside wall 28 inner wall 30 a top portion 32 hollow portion 40 engaging portion 42 base 44 locking leg 50 box body (fixing member)
52 取付孔54 ドア(可動部材) 52 mounting hole 54 door (movable member)

Claims (1)

  1. 固定部材と可動部材のいずれかに形成された取付孔に対して係止され、固定部材と可動部材の間に位置して、固定部材に可動部材が接近する際の衝撃を吸収するクッションクリップであって、 Locked relative to the fixed member and one which is formed in the mounting hole of the movable member, positioned between the fixed member and the movable member, with a cushion clip to absorb the impact when the movable member to approach the fixed member there,
    衝撃を吸収するクッション部と前記取付孔に係止させるための係止部とが一体化された構成とされており、 Impact are configured to a locking portion for the cushion portion engaged with the mounting holes are integrated to absorb,
    前記クッション部は底部と側壁部とを備えた中空形状とされ、該側壁部の内側壁および外側壁は底部側から先端に向かって縮径する円錐形状とされ、該側壁部の外側壁は高さ方向に直線状とされており、 The cushion portion is a hollow shape with a bottom and a side wall portion, the inner and outer walls of the side wall portion is a conical shape whose diameter decreases toward the front end from the bottom side, the outer wall of the side wall height It is straight in the direction,
    前記側壁部の先端には、内側壁が径方向内側に張り出し中央に円形の開口孔が設けられた頂上部が形成されており、 Wherein the distal end of the side wall portion, which is the top part a circular opening hole is provided is formed in the center projecting inner walls radially inwardly,
    前記側壁部の肉厚は底部側から先端に向かって薄くなり、 The thickness of the sidewall portion becomes thinner toward the tip from the bottom side,
    前記頂上部の下端の径方向の肉厚が前記側壁部の上部の径方向の肉厚よりも厚くされることで、クッション部にかかる荷重に対して該側壁部の上部が最も撓みやすくされており、荷重が増加すると、該側壁部は屈曲変形し、その屈曲部位が該側壁部の先端から底部へと移動するように構成されているクッションクリップ。 By radial thickness of the lower end of the top portion is thicker than the thickness of the upper portion of the radial direction of the side wall portion, it is most readily deflection upper portion of the side wall portion against a load applied to the cushion unit , when the load is increased, the side wall portion is bent and deformed, a cushion clip the bent portion is configured to move from the tip of the side wall portion to the bottom.
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