JPH0130254Y2 - - Google Patents
Info
- Publication number
- JPH0130254Y2 JPH0130254Y2 JP1981038209U JP3820981U JPH0130254Y2 JP H0130254 Y2 JPH0130254 Y2 JP H0130254Y2 JP 1981038209 U JP1981038209 U JP 1981038209U JP 3820981 U JP3820981 U JP 3820981U JP H0130254 Y2 JPH0130254 Y2 JP H0130254Y2
- Authority
- JP
- Japan
- Prior art keywords
- washer
- stud bolt
- resin
- hood
- mounting hole
- 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
Links
- 239000011347 resin Substances 0.000 claims description 25
- 229920005989 resin Polymers 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Body Structure For Vehicles (AREA)
- Connection Of Plates (AREA)
- Vibration Prevention Devices (AREA)
- Superstructure Of Vehicle (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
【考案の詳細な説明】
本考案は樹脂製部品、例えば自動車のフードル
ーバ等の取付け構造の改良に関するものである。[Detailed Description of the Invention] The present invention relates to an improvement in the mounting structure of resin parts, such as automobile hood louvers.
従来、自動車に取付けられる樹脂製のフードル
ーバの車体への取付けは、第1図に示すように、
該フードルーバ1の下面にスタツドボルト2を埋
込み、該ボルトをフードパネル3に挿通し、ナツ
ト4を螺合して取付けるものや、又、第2図に示
すように該フードルーバ1の下面に脚部5を突設
し、該脚部にセルフスレツドナツト6を嵌合さ
せ、該脚部にねじを切りながら締付けて取付ける
ようにしたものや、あるいは、第3図に示すよう
に該フードルーバ1の下面に円筒状の脚部7を設
けタツピングビス8により取付けるようにしたも
のが存したが第1図に示すものにおいては、ナツ
トの締付けによる軸力がスタツドボルトに直に負
荷されるので、必然的に植込部の寸法Lが大きく
なり、そのため取付部表面にヒケが発生しやす
く、かつ、強固に締付けるため左右の動きが困難
で、特に大物部品等では該樹脂製部品と被取付部
材との熱膨張の誤差により、鋼板性の被取付部材
より剛性の低い該樹脂製部品にソリ、もしくは捩
れが発生する等の問題がある。すなわち、鋼板
(鉄)の線膨張係数は約1×10-5であり、樹脂の
それは(約5〜10)×10-5であり、仮りに500mmの
長さのものであつて、50℃の温度の上昇があつた
とすると、その伸び量は鉄で約0.25mm、樹脂で約
1.25〜2.5mmとなり、その差1〜2.25mmが樹脂製部
品側にソリ、もしくは捩れを発生させる。又、第
2図に示すものにおいては、使用可能な締付許容
トルクが小さいためエアーツール等の作業性の良
い作業ができない、数多い脱着作業が不可能であ
る等の問題があり、又、第3図に示すものにおい
ては、締付許容トルクが小さい、脚部に肉厚を要
するため、取付部表面にヒケが発生しやすい、取
付パネルの絞り加工が深くなる等の問題があつ
た。 Conventionally, the resin hood louvers that are attached to automobiles are attached to the vehicle body as shown in Figure 1.
A stud bolt 2 is embedded in the lower surface of the hood louver 1, the bolt is inserted into the hood panel 3, and a nut 4 is screwed together to attach it.Alternatively, as shown in FIG. A hood louver with a protruding leg 5, a self-threading nut 6 fitted into the leg, and tightened while cutting a thread in the leg, or a hood louver as shown in FIG. There was a model in which a cylindrical leg part 7 was provided on the lower surface of the bolt 1 and was attached with a tapping screw 8, but in the model shown in Fig. 1, the axial force due to tightening the nut is applied directly to the stud bolt. Inevitably, the size L of the implanted part becomes large, which tends to cause sink marks on the surface of the mounting part, and it is difficult to move from side to side because it is tightly tightened, especially in the case of large parts etc. The resin part and the member to be mounted are difficult to move. Due to errors in thermal expansion, there are problems such as warping or twisting of the resin parts, which have lower rigidity than the steel plate-like member to which they are attached. In other words, the linear expansion coefficient of a steel plate (iron) is approximately 1 × 10 -5 , and that of resin is (approximately 5 to 10) × 10 -5 , and if it is 500 mm long and heated at 50°C. If the temperature rises, the amount of elongation will be approximately 0.25 mm for iron and approximately 0.25 mm for resin.
The difference is 1.25 to 2.5 mm, and a difference of 1 to 2.25 mm causes warping or twisting on the resin part side. In addition, in the case shown in Fig. 2, the usable allowable tightening torque is small, so there are problems such as not being able to perform work with good workability such as air tools, and making it impossible to perform many attachment and detachment operations. In the case shown in Fig. 3, there were problems such as the allowable tightening torque was small, the legs required a thick wall, sink marks were likely to occur on the surface of the mounting part, and the drawing process of the mounting panel became deep.
本考案は上記従来の諸問題を解消するためにな
されたものであつて、構造簡単にして取付けが容
易で、しかも取付部表面にヒケが発生したり、あ
るいは該樹脂製部品にソリが発生することのない
樹脂製部品の取付け構造を提供することを目的と
するものである。 The present invention was made to solve the above-mentioned conventional problems, and it has a simple structure and is easy to install, and it also prevents sink marks from occurring on the mounting surface or warping from the resin parts. The object of the present invention is to provide a structure for attaching resin parts without any problems.
以下、本考案を図示せる実施例に随つて説明す
る。 The present invention will be described below with reference to illustrative embodiments.
Aは被取付部材の一例を示すフードパネル、a
は該フードパネルAに穿設された取付開口部11
に取付けられる樹脂製部品であるフードルーバで
あつて、上記取付開口部11の周縁の近傍には適
宜間隔を存して複数個の取付用孔12が穿設され
ており、又、上記フードルーバa裏面の上記取付
用孔12に対応する部分には、該取付用孔12に
自由に挿通するボス部13が一体に形成され、該
ボス部13にはねじ部14aの直径より大径のつ
ば部14bを有するスタツドボルト14が嵌挿さ
れ、そのつば部14bが該ボス部13の先端面に
当接するようになされている。15は上記スタツ
ドボルト14に螺合するナツト、16は段部16
aを有するキヤツプ状をなす鋼製のワツシヤであ
つて、該ワツシヤ16には弾性を有するラバーワ
ツシヤ17が嵌込まれている。尚、該ラバーワツ
シヤ17の高さは、締結時における上記ワツシヤ
16の段部16aとフードパネルAの裏面との間
隙Hよりやや大きくなされ、締結時において、上
記ワツシヤ16の段部16aとフードパネルAの
裏面との間に圧縮挟持されるようになされてい
る。19は上記フードルーバーaの裏面側のボス
部13の周囲近傍に形成された突起である。 A is a hood panel showing an example of a member to be attached; a
is the mounting opening 11 bored in the hood panel A.
The hood louver is a resin part that is attached to the hood louver, and a plurality of mounting holes 12 are bored at appropriate intervals near the periphery of the mounting opening 11. A boss part 13 that is freely inserted into the mounting hole 12 is integrally formed in the part corresponding to the mounting hole 12 on the back side of a, and the boss part 13 has a collar with a diameter larger than the diameter of the threaded part 14a. A stud bolt 14 having a portion 14b is inserted so that its collar portion 14b comes into contact with the distal end surface of the boss portion 13. 15 is a nut screwed onto the stud bolt 14, and 16 is a stepped portion 16.
The washer 16 is made of steel and has a cap shape, and a rubber washer 17 having elasticity is fitted into the washer 16. The height of the rubber washer 17 is made slightly larger than the gap H between the stepped portion 16a of the washer 16 and the back surface of the hood panel A when the washer 16 is fastened. It is compressed and held between the back surface of the Reference numeral 19 denotes a protrusion formed near the periphery of the boss portion 13 on the back side of the hood louver a.
今、フードルーバaをフードパネルAに取付け
るには、先ずラバーワツシヤ17を嵌込んだワツ
シヤ16をスタツドボルト14のねじ部14aに
遊嵌させ、次にナツト15を螺合させ締付けてい
くとワツシヤ16の底部がスタツドボルト14の
つば部14bに圧着し、該つば部14bとナツト
15との間に介装挟持されると共に、突起19は
フードパネルAの表面に当接する。この時点で取
付けが完了する。この時ラバーワツシヤ17はフ
ードパネルAとワツシヤ16により圧縮挟持され
ているため、フードルーバaのボス部13には、
該ラバーワツシヤ17の圧縮による反力分とナツ
ト15の締付けトルクのみが負荷され、ナツトの
締付けによる高い軸力は上記スタツドボルト14
のつば部14bの当接面に生ずる。 Now, in order to attach the hood louver a to the hood panel A, first loosely fit the washer 16 with the rubber washer 17 fitted into the threaded portion 14a of the stud bolt 14, then screw the nut 15 on and tighten it. The bottom of the stud bolt 14 is pressed against the collar 14b of the stud bolt 14, and is interposed and held between the collar 14b and the nut 15, and the protrusion 19 abuts against the surface of the hood panel A. Installation is complete at this point. At this time, since the rubber washer 17 is compressed and held between the hood panel A and the washer 16, the boss portion 13 of the hood louver a has a
Only the reaction force due to the compression of the rubber washer 17 and the tightening torque of the nut 15 are loaded, and the high axial force due to tightening the nut is applied to the stud bolt 14.
This occurs on the contact surface of the collar portion 14b.
尚、上記実施例ではフードルーバaの取付けに
段付きのキヤツプ状をなす鋼製のワツシヤ16を
使用したが、該ワツシヤ16に限ることなく、第
8図に示すように平板状のワツシヤ18でもよ
い。又、上記実施例ではフードルーバaの取付け
について説明したがこれに限ることなく他の樹脂
製品の鋼板等への取付けにも応用することができ
る。 In the above embodiment, a stepped cap-shaped steel washer 16 was used to attach the hood louver a, but the washer 16 is not limited to this, and a flat washer 18 as shown in FIG. 8 may also be used. good. Further, although the above embodiment describes the attachment of the hood louver a, the present invention is not limited to this and can be applied to attachment of other resin products to steel plates or the like.
以上述べたように本考案によれば、樹脂製部品
の、被取付部材の取付用孔に対応する部分の裏面
側に、該取付用孔に挿通するボス部を穿設し、か
つ、該ボス部の周囲近傍に、被取付部材に取付け
たとき、該被取付部材に当接する突起を形成し、
上記ボス部に、少なくともねじ部の直径より大径
のつば部を有するスタツドボルトを嵌挿すると共
に、上記被取付部材と鋼製のワツシヤとの間に弾
性を有するラバーワツシヤを介装挟持し、かつ、
上記ワツシヤの中央部を上記スタツドボルトに螺
締したナツトとスタツドボルトのつば部との間に
介装挟持した構造とし、ナツトの締付けによる高
い軸力をスタツドボルトのつば部で受けるように
し、樹脂製部品のボス部には、ラバーワツシヤの
圧縮による反力分と締付けトルクのみが負荷され
るようにして、該樹脂製部品のボス部に掛る力を
小さくするようにしたので、該ボス部の構造を簡
素化することができる。したがつて、該ボス部の
肉厚寸法Lも小さくすることができるので、樹脂
製部品の表面のヒケも生じにくい。 As described above, according to the present invention, a boss portion that is inserted into the mounting hole is bored on the back side of the portion of the resin component that corresponds to the mounting hole of the member to be mounted, and the boss portion is inserted into the mounting hole. forming a protrusion near the periphery of the part that comes into contact with the attached member when attached to the attached member;
A stud bolt having a collar portion having a diameter larger than the diameter of the threaded portion is inserted into the boss portion, and an elastic rubber washer is interposed and sandwiched between the attached member and the steel washer, and ,
The center part of the washer is sandwiched between the nut screwed onto the stud bolt and the collar of the stud bolt, so that the collar of the stud bolt receives the high axial force caused by tightening the nut. Only the reaction force due to the compression of the rubber washer and the tightening torque are applied to the boss part of the resin part, thereby reducing the force applied to the boss part of the resin part. can be simplified. Therefore, since the wall thickness L of the boss portion can also be reduced, sink marks on the surface of the resin component are less likely to occur.
又、ナツトの締付けは、鋼製のワツシヤがスタ
ツドボルトのつば部に圧着したときに終了するよ
うになされているので、ナツトの締付けトルクに
バラツキが生じることなく均一に保つことができ
る。 Further, since the nut tightening is completed when the steel washer is crimped onto the collar of the stud bolt, the nut tightening torque can be maintained uniformly without variations.
又、本考案によれば、樹脂製部品には被取付部
材の取付用孔に対応する部分に、該取付用孔に挿
通するボス部を突設したので、樹脂製部品を被取
付部材からの突出量を少なくすることができる。 Further, according to the present invention, the resin part is provided with a protruding boss portion that is inserted into the mounting hole in the part corresponding to the mounting hole of the mounted member, so that the resin part cannot be removed from the mounted member. The amount of protrusion can be reduced.
さらに、本考案によれば、樹脂製部品の裏面側
に突起を形成し、該樹脂製部品を被取付部材に取
付けるとき、上記突起のみが被取付部材の表面に
当接するようにしたので、該樹脂製部品と被取付
部材との接触面積は小さく、しかも、樹脂製部品
はラバーワツシヤの圧縮反力で固定されているの
で、突起と被取付部材とが接触しているP点に加
わる荷重も小さい。したがつて、樹脂製部品と被
取付部材とが互いに滑りやすく熱膨張、吸水によ
る寸法伸縮等が生じてもその動きが可能であるた
め、該樹脂製部品にソリや捩れ等が生じることが
ない。 Further, according to the present invention, a protrusion is formed on the back side of the resin part, and when the resin part is attached to the member to be attached, only the protrusion comes into contact with the surface of the member to be attached. The contact area between the resin part and the mounted member is small, and since the resin part is fixed by the compression reaction force of the rubber washer, the load applied to point P, where the protrusion and the mounted member are in contact, is also small. . Therefore, the resin part and the attached member are easy to slide against each other and can move even if dimensional expansion/contraction due to thermal expansion or water absorption occurs, so the resin part does not warp or twist. .
又、被取付部材として塗装を施した鋼板を用い
た場合には、取付の際、鋼板と鋼製のワツシヤと
の間にラバーワツシヤが介装挟持され、塗装され
ている鋼板の裏面を傷つけることがないので、該
塗装面を保護することができ、錆が発生すること
がなく、しかも、車体等が振動してもラバーワツ
シヤの圧縮反力で押えているためガタつくことが
ない等の効果を有するものである。 Additionally, when a painted steel plate is used as the member to be mounted, a rubber washer is interposed between the steel plate and the steel washer during installation, which may damage the back side of the painted steel plate. Since there is no rubber washer, the painted surface can be protected, rust will not occur, and even if the vehicle body etc. vibrates, it is held down by the compression reaction force of the rubber washer, so it has the effect of not rattling. It is something.
第1図乃至第3図は従来のフードルーバの取付
け構造を示す部分側断面図、第4図はフードルー
バの取付け位置を示すフードパネルの斜視図、第
5図は本考案によるフードルーバの取付け状態を
示す部分拡大側断面図、第6図はスタツドボルト
の拡大斜視図、第7図は特殊ナツトの拡大斜視
図、第8図は本考案の他の実施例を示す部分側断
面図である。
Aはフードパネル、aはフードルーバ、13は
ボス部、14はスタツドボルト、14bはつば
部、15はナツト、16,18はワツシヤ、17
はラバーワツシヤ。
Figures 1 to 3 are partial side sectional views showing the conventional hood louver mounting structure, Figure 4 is a perspective view of the hood panel showing the mounting position of the hood louver, and Figure 5 is the installation of the hood louver according to the present invention. FIG. 6 is an enlarged perspective view of the stud bolt, FIG. 7 is an enlarged perspective view of the special nut, and FIG. 8 is a partial side sectional view showing another embodiment of the present invention. . A is a hood panel, a is a hood louver, 13 is a boss part, 14 is a stud bolt, 14b is a collar part, 15 is a nut, 16 and 18 are washers, 17
is rubber washer.
Claims (1)
る部分の裏面側に、該取付用孔に挿通するボス部
が突設され、かつ、該ボス部の周囲近傍に、被取
付部材に取付けたとき、該被取付部材に当接する
突起が形成され、上記ボス部に、少なくともねじ
部の直径より大径のつば部を有するスタツドボル
トが嵌挿されていると共に、上記被取付部材と鋼
製のワツシヤとの間に弾性を有するラバーワツシ
ヤが介装挟持され、かつ、上記ワツシヤの中央部
は上記スタツドボルトに螺締されたナツトとスタ
ツドボルトのつば部との間に介装挟持されている
ことを特徴とする樹脂製部品の取付構造。 A boss part that is inserted into the mounting hole is provided on the back side of the part of the resin part that corresponds to the mounting hole of the mounted member, and a boss part that is inserted into the mounting hole is provided near the periphery of the boss part to be mounted on the mounted member. A stud bolt having a flange portion having a diameter larger than the diameter of the threaded portion is inserted into the boss portion, and a stud bolt that comes into contact with the attached member is formed when the stud bolt is made of steel. An elastic rubber washer is interposed and sandwiched between the washer and the washer, and the center portion of the washer is interposed and sandwiched between a nut screwed to the stud bolt and the collar of the stud bolt. A mounting structure for resin parts featuring:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1981038209U JPH0130254Y2 (en) | 1981-03-20 | 1981-03-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1981038209U JPH0130254Y2 (en) | 1981-03-20 | 1981-03-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57151125U JPS57151125U (en) | 1982-09-22 |
JPH0130254Y2 true JPH0130254Y2 (en) | 1989-09-14 |
Family
ID=29835372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1981038209U Expired JPH0130254Y2 (en) | 1981-03-20 | 1981-03-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0130254Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4748806A (en) * | 1985-07-03 | 1988-06-07 | United Technologies Corporation | Attachment means |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54115049U (en) * | 1978-01-31 | 1979-08-13 |
-
1981
- 1981-03-20 JP JP1981038209U patent/JPH0130254Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS57151125U (en) | 1982-09-22 |
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