JP3127071U - FPC integrated gasket - Google Patents

FPC integrated gasket Download PDF

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JP3127071U
JP3127071U JP2006007314U JP2006007314U JP3127071U JP 3127071 U JP3127071 U JP 3127071U JP 2006007314 U JP2006007314 U JP 2006007314U JP 2006007314 U JP2006007314 U JP 2006007314U JP 3127071 U JP3127071 U JP 3127071U
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fpc
gasket
hole
sectional area
integrated gasket
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林　隆浩
蔵野　慶宏
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Nok Corp
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Abstract

【課題】筐体に開設された貫通孔に嵌合させてシールしているグロメット状のＦＰＣ一体ガスケットが、貫通孔から脱落することを防止する。
【解決手段】筐体２に開設された貫通孔３をシールするものであって、フレキシブル配線基板（ＦＰＣ）３０と一体でグロメット状に成形されたＦＰＣ一体ガスケット１において、貫通孔３の径方向断面積より大きい断面積面５２を有し、先端面５４に向かって漸次内径側に傾斜するテーパ面５３を有する突起５０をガスケット１０の先端部１３に配設した。
【選択図】図１A grommet-like FPC-integrated gasket that is fitted and sealed in a through-hole formed in a housing is prevented from falling off the through-hole.
In an FPC-integrated gasket 1 that seals a through-hole 3 formed in a housing 2 and is formed in a grommet shape integrally with a flexible wiring board (FPC) 30, a radial direction of the through-hole 3 is provided. A protrusion 50 having a cross-sectional area 52 larger than the cross-sectional area and having a tapered surface 53 that is gradually inclined toward the inner diameter side toward the front end surface 54 is disposed on the front end portion 13 of the gasket 10.
[Selection] Figure 1

Description

本考案は、携帯電話、ムービー、ＰＤＡ及びノートパソコン等の小型通信機器に使用されるフレキシブル配線基板（ＦＰＣ）と一体でグロメット状に成形されたＦＰＣ一体ガスケットに関する。   The present invention relates to an FPC-integrated gasket integrally formed with a flexible wiring board (FPC) used in a small communication device such as a mobile phone, a movie, a PDA, and a notebook personal computer in a grommet shape.

携帯電話、ムービー、ＰＤＡ及びノートパソコン等の小型通信機器にはユーザー層の拡大と共に近年様々な差別化が行われ、小型化、対衝撃性、防水性等の仕様を謳った製品開発が行われている。そのため配線形状が複雑になり積層フィルムや多層フィルム化等による対応が行われ、それに伴いシールに対する要求もこれまで以上に困難なものとなってきている。   Smaller communication devices such as mobile phones, movies, PDAs and notebook PCs have been differentiated in recent years as the user base has expanded, and products have been developed with specifications for miniaturization, impact resistance, waterproofness, etc. ing. For this reason, the wiring shape becomes complicated, and countermeasures such as the formation of a laminated film or a multilayer film are performed, and accordingly, the requirement for a seal has become more difficult than ever.

これに対応すべくシール構造においては、下記特許文献に示すように、シールを積層フィルムや多層フィルム化されたフレキシブル配線基板（ＦＰＣ）と一体成形する一体成形構造の方向で検討が進められている。一体成形構造の場合、図５に示すようにガスケット１０１をグロメット状に成形し、ＦＰＣ１０２をガスケット１０１の内部を挿通させるように埋設させることにより一体化を行う。このＦＰＣ一体ガスケット１００は、図６に示すように、筐体１０３に開設されている貫通孔１０４に一体ガスケット１００を嵌合させてシールするものであるが、図７に示すように、衝撃等を受けた場合、貫通孔１０４に嵌合しているＦＰＣ一体ガスケット１００が矢印Ｘ方向に脱落する虞があり、防水性の点で懸念されていた。   In order to cope with this, as shown in the following patent document, the seal structure is being studied in the direction of an integrally formed structure in which the seal is integrally formed with a laminated film or a flexible wiring board (FPC) formed into a multilayer film. . In the case of an integrally molded structure, as shown in FIG. 5, the gasket 101 is formed into a grommet shape, and the FPC 102 is embedded so as to be inserted through the gasket 101. As shown in FIG. 6, this FPC integrated gasket 100 is one in which the integrated gasket 100 is fitted into a through-hole 104 provided in the housing 103 and sealed. As shown in FIG. The FPC integrated gasket 100 fitted in the through-hole 104 may drop in the direction of the arrow X, and there has been a concern in terms of waterproofness.

特開２００４−２１４９２７公報JP 2004-214927 A

本考案は、上記問題点を解決するためになされたものであって、その目的とするところは、筐体に開設された貫通孔に嵌合させてシールしているグロメット状のＦＰＣ一体ガスケットが、貫通孔から脱落することのないようにすることである。   The present invention has been made to solve the above-mentioned problems, and the object of the present invention is to provide a grommet-like FPC integrated gasket that is fitted into a through-hole formed in a housing and sealed. In other words, it should be ensured that it does not fall out of the through hole.

上記目的を達成するため、本考案の請求項１に係るＦＰＣ一体ガスケットは、部材に開設された貫通孔をシールするものであって、フレキシブル配線基板（ＦＰＣ）と一体でグロメット状に成形されたＦＰＣ一体ガスケットにおいて、前記貫通孔の径方向断面積より大きい断面積面を有し、先端面に向かって漸次内径側に傾斜するテーパ面を有する突起がガスケットの先端部に配設されていることを特徴とするＦＰＣ一体ガスケット。   In order to achieve the above object, an FPC-integrated gasket according to claim 1 of the present invention seals a through-hole formed in a member, and is formed into a grommet shape integrally with a flexible wiring board (FPC). In the FPC-integrated gasket, a protrusion having a cross-sectional area larger than the radial cross-sectional area of the through hole and having a tapered surface gradually inclined toward the inner diameter side toward the front end surface is disposed at the front end portion of the gasket. FPC integrated gasket characterized by

また、本考案の請求項２に係るＦＰＣ一体ガスケットは、請求項1に記載のＦＰＣ一体ガスケットにおいて、前記突起は、前記断面積面が底面に形成され、軸方向断面形状が台形であることを特徴とするものである。   The FPC-integrated gasket according to claim 2 of the present invention is the FPC-integrated gasket according to claim 1, wherein the projection has a cross-sectional area formed on a bottom surface and an axial cross-sectional shape is a trapezoid. It is a feature.

本考案は、以下の効果を奏する。   The present invention has the following effects.

上記構成を備えた本考案に記載のＦＰＣ一体ガスケットは、少なくとも一部に前記貫通孔の径方向断面積より大きい断面積面を有する突起がガスケット先端部に配設されているので、貫通孔に嵌合させたときに突起が貫通孔の周縁部と係合し、挿通した方向に衝撃等により押し戻され嵌合が外れるのを防止することができ、もって防水性を確保することができる。   In the FPC-integrated gasket according to the present invention having the above-described configuration, the protrusion having a cross-sectional area larger than the radial cross-sectional area of the through-hole is disposed at the tip of the gasket at least partially. When fitted, the protrusion engages with the peripheral edge of the through-hole, and can be prevented from being pushed back by impact or the like in the inserted direction, thereby preventing waterproofing.

しかも配設されている突起は、先端面に向かって漸次内径側に傾斜するテーパ面を有しているので、前記貫通孔の径方向断面積より大きい断面積面を有していても、ＦＰＣ一体ガスケットを貫通孔に突起を先頭に嵌合させるときに、テーパ面に沿って容易に行うことができる。   In addition, since the protrusions that are disposed have a tapered surface that gradually inclines toward the inner diameter side toward the tip surface, the FPC may have a cross-sectional area larger than the radial cross-sectional area of the through hole. When the integral gasket is fitted into the through hole at the head, the process can be easily performed along the tapered surface.

以下に図面を参照して、この考案の好適な実施の形態を例示して説明する。ただし、この考案の範囲は、特に限定的記載がないかぎりは、この実施の形態に記載されている内容に限定する趣旨のものではない。なお、本考案における径方向とは、ＦＰＣの長手方向に対して直角に切断した方向をいい、軸方向とは、ＦＰＣの長手方向をいう。   DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments of the invention will be described with reference to the drawings. However, the scope of the present invention is not intended to be limited to the contents described in this embodiment unless otherwise specified. In addition, the radial direction in this invention means the direction cut | disconnected at right angles with respect to the longitudinal direction of FPC, and an axial direction means the longitudinal direction of FPC.

実施形態１：
図１は、本考案の実施形態1に係るＦＰＣ一体ガスケットの（１）は正面図、（２）は側面図、（３）は底面図であり、図２は、図１のＦＰＣ一体ガスケットの斜視図であり、図３は、図１のＦＰＣ一体ガスケットを筐体に開設された貫通孔に嵌合させた状態を示す（１）は正面から見た説明図、（２）は側面から見た説明図である。 Embodiment 1:
1 is a front view, (2) is a side view, (3) is a bottom view, and FIG. 2 is a view of the FPC integrated gasket of FIG. FIG. 3 is a perspective view, and FIG. 3 shows a state in which the FPC-integrated gasket of FIG. 1 is fitted in a through-hole formed in the housing. (1) is an explanatory view seen from the front, and (2) is seen from the side. FIG.

本実施形態に係るＦＰＣ一体ガスケット１は、貫通孔３に嵌合させてシールするものであり、ガスケット１０と、フレキシブル配線基板（ＦＰＣ）３０と、突起５０とを備えている。   The FPC-integrated gasket 1 according to the present embodiment is to be fitted into a through hole 3 and sealed, and includes a gasket 10, a flexible wiring board (FPC) 30, and a protrusion 50.

貫通孔３は、筐体２を軸方向に貫通するように開設されていて、軸方向中央に段差４を有し、大径開口部５と小径開口部６とからなる。   The through-hole 3 is opened so as to penetrate the housing 2 in the axial direction, has a step 4 at the center in the axial direction, and includes a large-diameter opening 5 and a small-diameter opening 6.

ガスケット１０は、ゴム状弾性体で形成されており、内部にＦＰＣ３０が挿通するように埋設されている。ガスケット１０は、貫通孔３に嵌合されてシールできるようにグロメット状に成形されていて、貫通孔３の段差４と係合する台座部１１が基部側Ｂに形設されていると共に、軸方向中央に貫通孔３の小径開口部６側の周壁と密接してシールするガスケットリップ１２が形設されている。   The gasket 10 is formed of a rubber-like elastic body, and is embedded so that the FPC 30 is inserted therethrough. The gasket 10 is formed in a grommet shape so as to be fitted and sealed in the through hole 3, and a base portion 11 that engages with the step 4 of the through hole 3 is formed on the base side B, and the shaft 10 A gasket lip 12 is formed at the center in the direction to seal tightly with the peripheral wall of the through hole 3 on the small diameter opening 6 side.

更に、ガスケット１０の先端部１３には、突起５０がガスケット１０と一体成形により配設されている。突起５０は、基部側Ｂの底面５１が貫通孔３の小径開口部６の径方向断面積より大きい断面積面５２であり、その断面積面５２から先端面５４に向かう側面５５は、漸次内径側に傾斜するテーパ面５３で形成されている。すなわち、突起５０は、断面積面５２が底面５１であって、軸方法断面形状が台形であるように成形されている。したがって、先端面５４の面積は、貫通孔３の小径開口部６の径方向断面積より小さくなっている。   Further, a protrusion 50 is disposed on the tip portion 13 of the gasket 10 by integral molding with the gasket 10. The protrusion 50 is a cross-sectional area 52 in which the bottom surface 51 on the base side B is larger than the radial cross-sectional area of the small-diameter opening 6 of the through-hole 3, and the side surface 55 from the cross-sectional area 52 toward the tip surface 54 It is formed with a tapered surface 53 inclined to the side. In other words, the protrusion 50 is formed such that the cross-sectional area 52 is the bottom 51 and the axial cross-sectional shape is a trapezoid. Therefore, the area of the tip surface 54 is smaller than the radial cross-sectional area of the small diameter opening 6 of the through hole 3.

この様に構成されたＦＰＣ一体ガスケット１は、突起５０を先頭にして筐体２に開設された貫通孔３に大径開口部５側から挿通される。この場合に、ガスケット１０に形設されている台座部１１が貫通孔３に形成されている段差４と係合すると共に、突起５０が貫通孔３の小径開口部６の周縁部７と係合するので、ＦＰＣ一体ガスケット１が衝撃等により大径開口部５側に押し戻され、嵌合が外れるのを防止することが可能となる。   The FPC-integrated gasket 1 configured in this manner is inserted from the large-diameter opening 5 side into the through hole 3 formed in the housing 2 with the protrusion 50 as the head. In this case, the pedestal portion 11 formed in the gasket 10 engages with the step 4 formed in the through hole 3, and the protrusion 50 engages with the peripheral portion 7 of the small diameter opening 6 of the through hole 3. Therefore, it is possible to prevent the FPC-integrated gasket 1 from being pushed back to the large-diameter opening 5 side due to an impact or the like and disengagement.

更に、断面積面５２から先端面５４に向かう側面５５は、漸次内径側に傾斜するテーパ面５３で形成されているので、突起５０が配設されている方からＦＰＣ一体ガスケット１を挿通し貫通孔３に嵌合させようとするとき、断面積面５２が小径開口部６の径方向断面積より大きくても突起５０を貫通孔３に挿通させることが可能となる。   Further, since the side surface 55 from the cross-sectional area 52 toward the front end surface 54 is formed by a tapered surface 53 that gradually inclines toward the inner diameter side, the FPC integrated gasket 1 is inserted and penetrated from the side where the protrusion 50 is disposed. When trying to fit into the hole 3, the protrusion 50 can be inserted into the through-hole 3 even if the cross-sectional area 52 is larger than the radial cross-sectional area of the small-diameter opening 6.

実施形態２：
図４は、本考案の実施形態２に係るＦＰＣ一体ガスケットを示しており、（１）が正面図、（２）が側面図である。実施形態２のＦＰＣ一体ガスケット１は、実施形態１のＦＰＣ一体ガスケット１に対して突起５０の形状を変更したものである。なお、図４において、図１乃至３に示す構成と同様な構成については、同一の符号を付している。 Embodiment 2:
FIG. 4: has shown the FPC integrated gasket which concerns on Embodiment 2 of this invention, (1) is a front view, (2) is a side view. The FPC integrated gasket 1 of the second embodiment is obtained by changing the shape of the protrusion 50 with respect to the FPC integrated gasket 1 of the first embodiment. In FIG. 4, the same components as those shown in FIGS. 1 to 3 are denoted by the same reference numerals.

図４に示す突起は、断面積面５２が軸方向の中央に形成されており、その断面積面５２から先端面５４に向かう側面５５は、漸次内径側に傾斜するテーパ面５３で形成されていると共に、その断面積面５２から底面５１に向かう側面５５も、漸次内径側に傾斜するテーパ面５３で形成されている   4, the cross-sectional area 52 is formed at the center in the axial direction, and the side surface 55 from the cross-sectional area 52 toward the front end surface 54 is formed by a tapered surface 53 that is gradually inclined toward the inner diameter side. In addition, the side surface 55 from the cross-sectional area surface 52 toward the bottom surface 51 is also formed with a tapered surface 53 that is gradually inclined toward the inner diameter side.

したがって、本実施形態２の場合であっても、実施形態１の場合と同様に、断面積面５２の部位で小径開口部６の周縁部７と係合するので、貫通孔３に嵌合しているＦＰＣ一体ガスケット１が外れるのを防止することが可能となる。   Therefore, even in the case of the second embodiment, as in the case of the first embodiment, it engages with the peripheral edge portion 7 of the small-diameter opening 6 at the site of the cross-sectional area 52, so It is possible to prevent the FPC integrated gasket 1 from being detached.

本考案に係る実施形態１のＦＰＣ一体ガスケットの（１）正面図 （２）側面図（３）底面図(1) Front view (2) Side view (3) Bottom view of FPC-integrated gasket according to Embodiment 1 of the present invention 図１におけるＦＰＣ一体ガスケットの斜視図1 is a perspective view of the FPC integrated gasket in FIG. 図１におけるＦＰＣ一体ガスケットの装着状態の説明図Explanatory drawing of the mounting state of the FPC integrated gasket in FIG. 本考案に係る実施形態２のＦＰＣ一体ガスケットの（１）正面図 （２）側面図(1) Front view (2) Side view of FPC-integrated gasket of Embodiment 2 according to the present invention 従来例のＦＰＣ一体ガスケットの（１）正面図（２）側面図 （３）底面図(1) Front view (2) Side view (3) Bottom view of conventional FPC integrated gasket 従来例のＦＰＣ一体ガスケットの装着状態の説明図Explanatory drawing of mounting state of conventional FPC integrated gasket 従来例における貫通孔に装着したＦＰＣ一体ガスケットの不具合 状態を示す説明図Explanatory drawing which shows the malfunction state of the FPC integral gasket attached to the through hole in the conventional example

符号の説明Explanation of symbols

１ ＦＰＣ一体ガスケット
２ 筐体（部材）
３ 貫通孔
４ 段差
５，６ 開口部
７ 周縁部
１０ ガスケット
１１ 台座部
１２ ガスケットリップ
１３ ガスケット先端部
３０ ＦＰＣ（フレキシブル配線基板）
５０ 突起
５１ 底面
５２ 断面積面
５３ テーパ面
５４ 先端面
５５ 側面
Ｂ 基部側
Ｔ 先端側 1 FPC-integrated gasket 2 Housing (member)
DESCRIPTION OF SYMBOLS 3 Through-hole 4 Level | step difference 5,6 Opening part 7 Peripheral part 10 Gasket 11 Base part 12 Gasket lip 13 Gasket front-end | tip part 30 FPC (flexible wiring board)
50 Projection 51 Bottom 52 Cross-sectional area 53 Tapered surface 54 Tip surface 55 Side B Base side T Tip side

Claims (2)

部材に開設された貫通孔をシールするものであって、フレキシブル配線基板（ＦＰＣ）と一体でグロメット状に成形されたＦＰＣ一体ガスケットにおいて、
前記貫通孔の径方向断面積より大きい断面積面を有し、先端面に向かって漸次内径側に傾斜するテーパ面を有する突起がガスケットの先端部に配設されていることを特徴とするＦＰＣ一体ガスケット。 In the FPC-integrated gasket that seals the through-hole formed in the member and is formed in a grommet shape integrally with the flexible wiring board (FPC),
A FPC having a cross-sectional area larger than a radial cross-sectional area of the through-hole and having a tapered surface gradually inclined toward the inner diameter side toward the front end surface is disposed at the front end portion of the gasket. Integrated gasket. 請求項１に記載のＦＰＣ一体ガスケットにおいて、
前記突起は、前記断面積面が底面に形成され、軸方向断面形状が台形であることを特徴とするＦＰＣ一体ガスケット。 The FPC-integrated gasket according to claim 1,
The FPC-integrated gasket according to claim 1, wherein the protrusion has a cross-sectional area formed on a bottom surface and an axial cross-sectional shape is a trapezoid.
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JP2010062284A (en) * 2008-09-03 2010-03-18 Sumitomo Electric Ind Ltd Sealing structure and electronic apparatus
JP2011080981A (en) * 2009-09-11 2011-04-21 Nok Corp Structure for mounting pressure sensor
US8581118B2 (en) 2008-09-03 2013-11-12 Sumitomo Electric Industries, Ltd. Seal structure, method of forming seal structure, wire body, and electronic apparatus
US8912454B2 (en) 2010-07-15 2014-12-16 Nippon Mektron, Ltd. Seal structure
CN106255369A (en) * 2016-09-09 2016-12-21 广东欧珀移动通信有限公司 Method of manufacturing circuit board, mobile terminal, casing assembly and manufacture method thereof
EP3293951A1 (en) * 2016-09-09 2018-03-14 Guangdong Oppo Mobile Telecommunications Corp., Ltd Mobile terminal, housing assembly, and method for manufacturing the same
WO2020026577A1 (en) * 2018-07-30 2020-02-06 日本メクトロン株式会社 Flexible wiring board and battery module

Cited By (10)

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