JP5536170B2 - Waterproof case - Google Patents

Waterproof case Download PDF

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JP5536170B2
JP5536170B2 JP2012228226A JP2012228226A JP5536170B2 JP 5536170 B2 JP5536170 B2 JP 5536170B2 JP 2012228226 A JP2012228226 A JP 2012228226A JP 2012228226 A JP2012228226 A JP 2012228226A JP 5536170 B2 JP5536170 B2 JP 5536170B2
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box body
edge
attached
waterproof case
lid
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JP2013034377A (en
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良夫 松井
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Yazaki Corp
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Description

本発明は、移動体としての自動車などに搭載される防水ケースに関する。   The present invention relates to a waterproof case mounted on an automobile as a moving body.

移動体としての自動車には、一般に、ヘッドランプ及びテールランプなどのランプ類、スタータモータ及びエアコンディショナ用のモータ等のモータ類、などの多種多様な電子機器が搭載されている。   In general, automobiles as moving bodies are equipped with a wide variety of electronic devices such as lamps such as head lamps and tail lamps, and motors such as motors for starter motors and air conditioners.

前述した多種多様な電子機器に電力を供給するために、前記自動車は、ワイヤハーネスを配索している。ワイヤハーネスは、複数の電線と、該電線の端末に取り付けられたコネクタと、を備えている。電線は、勿論、導電性の芯線と該芯線を被覆した被覆部とを備えた所謂被覆電線である。コネクタは、導電性の板金などで構成されて前記芯線と接続した端子金具と、該端子金具を収容したコネクタハウジングとを備えている。ワイヤハーネスは、コネクタが電源や各種の電子機器に接続されて、前述した自動車に配索される。   In order to supply power to the various electronic devices described above, the automobile has a wire harness. The wire harness includes a plurality of electric wires and a connector attached to an end of the electric wires. The electric wire is, of course, a so-called covered electric wire provided with a conductive core wire and a covering portion covering the core wire. The connector includes a terminal fitting made of conductive sheet metal or the like and connected to the core wire, and a connector housing containing the terminal fitting. The wire harness is routed to the automobile described above, with a connector connected to a power source and various electronic devices.

前述したワイヤハーネスのコネクタは、勿論、防水性が要求される。このため、例えば、前述したコネクタを防水ケース内に収容して、該コネクタ内に水などの液体が浸入することを防止することがある。この種の防水ケースは、開口部が設けられた箱本体と、該箱本体に着脱自在でかつ箱本体に取り付けられると開口部を塞ぐ蓋体と、前記開口部の外縁と略等しい形状の環状に形成されかつ箱本体と蓋体とのうち一方に取り付けられてこれらの間を水密に保つシール部材を備えている。   Of course, the wire harness connector described above is required to be waterproof. For this reason, for example, the connector described above may be accommodated in a waterproof case to prevent liquid such as water from entering the connector. This type of waterproof case includes a box body provided with an opening, a lid that is detachably attached to the box body and closes the opening when attached to the box body, and an annular shape that is substantially equal to the outer edge of the opening. And a seal member which is attached to one of the box body and the lid and keeps watertight between them.

箱本体には、囲むことで前述した開口部を形成する周板が複数設けられている。周板には、開口部寄りの縁から該開口部から離れる方向に周板の一部を切り欠いた切欠きが設けられている。また、箱本体には、内側に前述したワイヤハーネスの電線を通すカバー部材としてのグロメットが取り付けられる。グロメットは、箱本体に取り付けられると、前述した切欠きを塞ぐとともに、箱本体との間を水密に保つ。シール部材は、勿論、ゴムなどの弾性材料で構成されており、前述した周板の縁やグロメットの縁などに当接して、弾性変形することで箱本体と蓋体との間を水密に保つ。   The box body is provided with a plurality of peripheral plates that form the openings described above by surrounding the box body. The peripheral plate is provided with a cutout in which a part of the peripheral plate is cut away from the edge near the opening in a direction away from the opening. Moreover, the grommet as a cover member which lets the electric wire of the wire harness mentioned above pass inside is attached to a box main body. When the grommet is attached to the box body, the grommet closes the above-described notch and keeps the space between the box body watertight. Of course, the seal member is made of an elastic material such as rubber, and abuts against the edge of the peripheral plate or the edge of the grommet described above and elastically deforms to keep the box body and the lid body watertight. .

前述した防水ケースは、グロメット内に電線が通されたワイヤハーネスのコネクタを箱本体に収容して、グロメットを箱本体に取り付けた後、シール部材が固定された蓋体を箱本体に取り付けることで、内側にコネクタを収容する。こうして、防水ケースは、コネクタに水などの液体が付着することを防止する。   The above-described waterproof case is obtained by housing the wire harness connector in which the electric wire is passed through the grommet in the box body, attaching the grommet to the box body, and then attaching the lid body to which the seal member is fixed to the box body. The connector is accommodated inside. Thus, the waterproof case prevents liquid such as water from adhering to the connector.

しかしながら、前述した防水ケースは、箱本体に切欠きが設けられて、該切欠きを塞ぐグロメットが取り付けられているので、箱本体の周板とグロメットとの間にすきまが生じてしまう。このため、シール部材が、周板との間とグロメットとの間を水密に保っても、周板とグロメットとの間の隙間、特に前述した開口部付近に生じる隙間を通して、防水ケースは、内側に水などの液体が浸入してしまうことがあった。   However, the above-described waterproof case is provided with a notch in the box body and a grommet that closes the notch is attached, so that a gap is generated between the peripheral plate of the box body and the grommet. For this reason, even if the sealing member keeps the space between the peripheral plate and the grommet watertight, the waterproof case is formed on the inner side through the gap between the peripheral plate and the grommet, particularly the gap generated in the vicinity of the opening. In some cases, liquids such as water could get in.

したがって、本発明の目的は、箱本体と該箱本体に取り付けられるカバー部材との間の隙間を通して水などの液体が浸入することを防止できる防水ケースを提供することにある。   Accordingly, an object of the present invention is to provide a waterproof case capable of preventing liquid such as water from entering through a gap between a box body and a cover member attached to the box body.

前記課題を解決し目的を達成するために、請求項１に記載の本発明の防水ケースは、複数の周板に囲まれて形成された開口部が設けられた箱本体と、前記箱本体に取り付けられるとともに、該箱本体に取り付けられると前記開口部を塞ぐ蓋体と、環状に形成され、かつ前記箱本体と前記蓋体とのうち一方に取り付けられるとともに、前記周板の縁と当接して、前記箱本体と前記蓋体との間を水密に保つシール部材と、を備えた防水ケースにおいて、前記複数の周板のうち少なくとも一つには、前記開口部寄りの縁から該開口部から離れる方向に前記周板を切り欠いた切欠き部が形成され、前記箱本体に取り付けられるとともに、該箱本体に取り付けられると、切欠き部を塞ぐカバー部材を更に備え、前記シール部材の前記切欠き部が設けられた周板の縁及び前記カバー部材の縁と当接する当接部分は、他の部分よりも厚みが厚く形成されていることを特徴としている。   In order to solve the above problems and achieve the object, the waterproof case of the present invention according to claim 1 includes a box body provided with openings formed by being surrounded by a plurality of peripheral plates, and the box body. And a lid that closes the opening when attached to the box body, and is attached to one of the box body and the lid, and abuts against an edge of the peripheral plate. A sealing member that keeps water tight between the box body and the lid body, and at least one of the plurality of peripheral plates has an opening portion from an edge near the opening portion. A notch formed by notching the peripheral plate in a direction away from the box, and is attached to the box body, and further provided with a cover member that closes the notch when attached to the box body, the seal member A notch is provided. Edge and edge abutting contact portion of the cover member in the circumferential plate is characterized in that it is formed thick in thickness than other portions.

請求項２に記載の本発明の防水ケースは、請求項１に記載された発明において、前記当接部分は、前記他の部分と厚みが等しい本体部と、該本体部に重ねられて前記他の部分よりも前記周板側に突出した突出部と、を備えていることを特徴としている。   A waterproof case according to a second aspect of the present invention is the waterproof case according to the first aspect, wherein the contact portion includes a main body portion having the same thickness as the other portion, and is overlapped with the main body portion. And a projecting portion projecting to the peripheral plate side from the portion.

以上説明したように請求項１，２に記載の本発明は、箱本体と蓋体とが互いに取り付けられると、当接部分の弾性変形量が他の部分よりも大きくなるので、該当接部分の一部が箱本体とカバー部材との間の隙間に侵入する。このため、シール部材は、開口部寄りの箱本体とカバー部材との間の隙間を塞ぐこととなって、該隙間を通して水などの液体が浸入することを防止できる。   As described above, according to the first and second aspects of the present invention, when the box body and the lid are attached to each other, the amount of elastic deformation of the contact portion is larger than that of the other portions. A part enters the gap between the box body and the cover member. For this reason, the seal member closes the gap between the box body near the opening and the cover member, and can prevent liquid such as water from entering through the gap.

本発明の第１の実施形態に係る防水ケースを分解して示す斜視図である。It is a perspective view which decomposes | disassembles and shows the waterproof case which concerns on the 1st Embodiment of this invention. 図１に示された防水ケースの蓋体とシール部材を示す斜視図である。It is a perspective view which shows the cover body and sealing member of a waterproof case which were shown by FIG. 図１に示された防水ケースのシール部材を示す斜視図である。It is a perspective view which shows the sealing member of the waterproof case shown by FIG. 図１中のＩＶ−ＩＶ線に沿う断面図である。It is sectional drawing which follows the IV-IV line in FIG. 図１に示された防水ケースの要部の断面図である。It is sectional drawing of the principal part of the waterproof case shown by FIG. 参考例のシール部材を示す斜視図である。It is a perspective view which shows the sealing member of a reference example. 本発明の第２の実施形態に係る防水ケースの蓋体とシール部材を示す斜視図である。It is a perspective view which shows the cover body and sealing member of a waterproof case which concern on the 2nd Embodiment of this invention. 図７に示された防水ケースのシール部材を示す斜視図である。It is a perspective view which shows the sealing member of the waterproof case shown by FIG. 図７中のＩＸ−ＩＸ線に沿う断面図である。It is sectional drawing which follows the IX-IX line in FIG. 図７に示された防水ケースの要部の断面図である。It is sectional drawing of the principal part of the waterproof case shown by FIG.

以下、本発明の第１の実施形態にかかる防水ケースを、図１乃至図５に基づいて説明する。   Hereinafter, a waterproof case according to a first embodiment of the present invention will be described with reference to FIGS.

本実施形態にかかる図１に示す防水ケース１は、移動体としての自動車に搭載されて、該自動車に配索されたワイヤハーネスのコネクタを収容する。ワイヤハーネスは、複数の電線と、該電線の端末に取り付けられたコネクタと、を備えている。電線は、導電性の芯線と、該芯線を被覆した絶縁性の被覆部とを備えている。コネクタは、導電性の板金で構成されて電線の芯線と接続した端子金具と、該端子金具を収容した絶縁性のコネクタハウジングとを備えている。前述したワイヤハーネスは、コネクタが自動車に搭載される各種の電子機器に接続して、該電子機器に所望の電力や信号を供給する。また、ワイヤハーネスの一部のコネクタは、防水ケース１内に収容されて、水などの液体が付着することが防止される。   A waterproof case 1 shown in FIG. 1 according to the present embodiment is mounted on an automobile as a moving body and accommodates a connector of a wire harness routed in the automobile. The wire harness includes a plurality of electric wires and a connector attached to an end of the electric wires. The electric wire includes a conductive core wire and an insulating covering portion that covers the core wire. The connector includes a terminal fitting made of conductive sheet metal and connected to the core of the electric wire, and an insulating connector housing that houses the terminal fitting. In the above-described wire harness, the connector is connected to various electronic devices mounted on the automobile, and supplies desired electric power and signals to the electronic device. In addition, some connectors of the wire harness are accommodated in the waterproof case 1 to prevent liquids such as water from adhering thereto.

防水ケース１は、図１に示すように、箱本体２と、蓋体３と、カバー部材としてのグロメット４と、シール部材（図２に示す）５とを備えている。   As shown in FIG. 1, the waterproof case 1 includes a box body 2, a lid 3, a grommet 4 as a cover member, and a seal member (shown in FIG. 2) 5.

箱本体２は、絶縁性の合成樹脂で構成されており、底板６と、該底板６の外縁から立設した複数の周板７と、フランジ８とを備えて、有底筒状に形成されている。フランジ８は、周板７の外表面から凸に形成されており、箱本体２の全周に設けられている。また、箱本体２には、複数の周板７で囲まれて形成された開口部９が設けられている。勿論、開口部９は、箱本体２の内外を連通している。   The box body 2 is made of an insulating synthetic resin, and includes a bottom plate 6, a plurality of peripheral plates 7 erected from the outer edge of the bottom plate 6, and a flange 8, and is formed in a bottomed cylindrical shape. ing. The flange 8 is formed so as to protrude from the outer surface of the peripheral plate 7, and is provided on the entire circumference of the box body 2. The box body 2 is provided with an opening 9 formed by being surrounded by a plurality of peripheral plates 7. Of course, the opening 9 communicates the inside and outside of the box body 2.

また、周板７の底板６から離れた側の縁７ａには、該縁７ａから凸のリップ１０が形成されている。さらに、箱本体２の一つの周板７には、切欠き部１１が設けられている。切欠き部１１は、図示例では、二つ設けられている。切欠き部１１は、周板７を切り欠いているとともに、周板７の底板６から離れた側の縁７ａから底板６に近づく方向即ち開口部９から離れる方向に延在している。   A convex lip 10 is formed on the edge 7a of the peripheral plate 7 away from the bottom plate 6 from the edge 7a. Furthermore, a notch 11 is provided in one peripheral plate 7 of the box body 2. Two notches 11 are provided in the illustrated example. The notch 11 cuts the peripheral plate 7 and extends in a direction approaching the bottom plate 6 from an edge 7 a on the side of the peripheral plate 7 away from the bottom plate 6, that is, a direction away from the opening 9.

さらに、周板７の内面側には、箱本体２内にナットが埋設されている。ナットは、箱本体２の隅部に配置されている。   Further, a nut is embedded in the box body 2 on the inner surface side of the peripheral plate 7. The nut is disposed at a corner of the box body 2.

蓋体３は、絶縁性の合成樹脂で構成されており、平板状の天井板１２と、該天井板１２の外縁から立設した複数の周板１３とを備えている。天井板１２には、ボルト通し孔１４が貫通している。ボルト通し孔１４は、箱本体２に対して開口部９を塞ぐ位置に蓋体３が位置付けられると、前述した周板１３の内側に設けられたナットと相対する。   The lid 3 is made of an insulating synthetic resin, and includes a flat ceiling plate 12 and a plurality of peripheral plates 13 erected from the outer edge of the ceiling plate 12. Bolt through holes 14 pass through the ceiling plate 12. When the lid body 3 is positioned at a position where the opening 9 is closed with respect to the box body 2, the bolt through hole 14 is opposed to the nut provided inside the peripheral plate 13 described above.

周板１３の内側には、図２に示すように、蓋体３の全周に亘って、シール部材収容溝１５が設けられている。シール部材収容溝１５は、箱本体２に対して開口部９を塞ぐ位置に蓋体３が位置付けられると、前述した周板７及びグロメット４の後述の板部１７に設けられたリップ１０，２０と相対する。蓋体３は、ボルト通し孔１４内を通ったボルト１６が前述したナットにねじ込まれることで、開口部９を塞ぐ格好で箱本体２に取り付けられる。なお、箱本体２と蓋体３とが互いに取り付けられた状態で、底板６と天井板１２とが互いに相対する方向は、箱本体２と蓋体３とが互いに重なる方向Ｋ（図１中に矢印で示す）をなしている。このため、箱本体２と蓋体３とが互いに重なる方向Ｋは、底板６と天井板１２との双方に対して直交している。   Inside the peripheral plate 13, as shown in FIG. 2, a seal member accommodation groove 15 is provided over the entire circumference of the lid body 3. When the lid 3 is positioned at a position that closes the opening 9 with respect to the box body 2, the seal member accommodation groove 15 is provided with lips 10 and 20 provided on the plate 7 and the plate 17 described later of the grommet 4 described above. Relative to The lid 3 is attached to the box body 2 so as to close the opening 9 by screwing the bolt 16 that has passed through the bolt through hole 14 into the nut described above. In the state in which the box body 2 and the lid 3 are attached to each other, the direction in which the bottom plate 6 and the ceiling plate 12 face each other is the direction K in which the box body 2 and the lid 3 overlap each other (in FIG. 1). (Indicated by an arrow). For this reason, the direction K in which the box body 2 and the lid 3 overlap each other is orthogonal to both the bottom plate 6 and the ceiling plate 12.

グロメット４は、板部１７と、チューブ部１８とを一体に備えている。板部１７は、平板状に形成されており、その平面形状が、切欠き部１１の平面形状と略同形状に形成されている。板部１７には、貫通孔（図５に示す）１９が設けられている。チューブ部１８は、筒状に形成されて、板部１７の貫通孔１９の外側に位置する部分に連なっている。   The grommet 4 is integrally provided with a plate portion 17 and a tube portion 18. The plate portion 17 is formed in a flat plate shape, and the planar shape thereof is substantially the same as the planar shape of the notch portion 11. The plate portion 17 is provided with a through hole (shown in FIG. 5) 19. The tube portion 18 is formed in a cylindrical shape and continues to a portion located outside the through hole 19 of the plate portion 17.

グロメット４は、チューブ部１８と貫通孔１９の内側にワイヤハーネスの電線を通すとともに、板部１７が切欠き部１１を塞いだ格好で、箱本体２に取り付けられる。また、箱本体２に取り付けられると、周板７の縁７ａと略面一になるグロメット４の板部１７の縁１７ａには、該縁１７ａから凸のリップ２０が設けられている。   The grommet 4 is attached to the box body 2 in such a manner that the electric wire of the wire harness passes through the inside of the tube portion 18 and the through hole 19 and the plate portion 17 closes the notch portion 11. Further, when attached to the box body 2, a lip 20 that protrudes from the edge 17 a is provided on the edge 17 a of the plate portion 17 of the grommet 4 that is substantially flush with the edge 7 a of the peripheral plate 7.

シール部材５は、クロロプレン系やＥＰＤＭ系の発泡ゴムで構成されている。シール部材５は、図３に示すように、四つの柱状部２１を備えて、環状に形成されている。柱状部２１は、勿論、柱状に形成されている。柱状部２１は、端部同士が連なっている。シール部材５は、図２及び図４に示すように、前述したシール部材収容溝１５内に収容されて、蓋体３に取り付けられる。   The seal member 5 is made of chloroprene-based or EPDM-based foamed rubber. As shown in FIG. 3, the seal member 5 includes four columnar portions 21 and is formed in an annular shape. Of course, the columnar part 21 is formed in a columnar shape. The end portions of the columnar portion 21 are continuous. As shown in FIGS. 2 and 4, the seal member 5 is accommodated in the seal member accommodation groove 15 and attached to the lid 3.

蓋体３に取り付けられると、シール部材５は、周板７の縁７ａ及びグロメット４の板部１７の縁１７ａと当接して、該縁７ａ，１７ａに設けられたリップ１０，２０から押圧されて、弾性変形して、箱本体２と蓋体３との間を水密に保つ。シール部材５の切欠き部１１が設けられた周板７の縁７ａ及びグロメット４の板部１７の縁１７ａと当接する一つの柱状部２１（以下、符号２１ａで示す）には、当接部分としての当接部２２が設けられている。   When attached to the lid 3, the seal member 5 comes into contact with the edge 7 a of the peripheral plate 7 and the edge 17 a of the plate portion 17 of the grommet 4 and is pressed from the lips 10 and 20 provided on the edges 7 a and 17 a. Thus, it is elastically deformed to keep the space between the box body 2 and the lid 3 watertight. One columnar portion 21 (hereinafter denoted by reference numeral 21a) that contacts the edge 7a of the peripheral plate 7 provided with the notch 11 of the seal member 5 and the edge 17a of the plate portion 17 of the grommet 4 has an abutting portion. A contact portion 22 is provided.

当接部２２は、勿論、切欠き部１１が設けられた周板７の縁７ａ及びグロメット４の板部１７の縁１７ａと当接する。当接部２２の厚みＴは、シール部材５の該当接部２２以外の他の部分の厚みｔよりも厚く形成されている。なお、厚みＴ，ｔとは、蓋体３と箱本体２とが互いに重なる方向の寸法である。また、当接部２２の幅Ｈは、シール部材５の他の部分の幅ｈと等しく形成されている。なお、幅Ｈ，ｈとは、蓋体３と箱本体２とが互いに重なる方向に対して直交する方向の寸法である。   Of course, the contact part 22 contacts the edge 7a of the peripheral plate 7 provided with the notch part 11 and the edge 17a of the plate part 17 of the grommet 4. A thickness T of the contact portion 22 is formed to be thicker than a thickness t of other portions of the seal member 5 other than the corresponding contact portion 22. The thicknesses T and t are dimensions in the direction in which the lid 3 and the box body 2 overlap each other. Further, the width H of the contact portion 22 is formed to be equal to the width h of other portions of the seal member 5. The widths H and h are dimensions in a direction perpendicular to the direction in which the lid 3 and the box body 2 overlap each other.

当接部２２は、図３及び図４に示すように、本体部２３と、突出部としての突出部材２４とを備えている。本体部２３は、シール部材５の該当接部２２以外の他の部分と厚みと幅が等しく形成されているとともに、該他の部分と一体に形成されている。突出部材２４は、本体部２３の箱本体２側の表面に重ねられている。このため、突出部材２４は、本体部２３よりも箱本体２側に突出している。突出部材２４は、シール部材５の該当接部２２以外の他の部分と幅が等しく形成されている。当接部２２は、本体部２３よりも突出部材２４が柔らかい材料で形成されている。前述した構成のシール部材５は、本体部２３と他の部分とを一体に形成した後、該本体部２３に突出部材２４が取り付けられて、組み立てられる。   As shown in FIGS. 3 and 4, the contact portion 22 includes a main body portion 23 and a protruding member 24 as a protruding portion. The main body portion 23 is formed to have the same thickness and width as the other portions other than the corresponding contact portion 22 of the seal member 5 and is formed integrally with the other portions. The protruding member 24 is overlaid on the surface of the main body 23 on the box body 2 side. For this reason, the protruding member 24 protrudes to the box body 2 side from the main body portion 23. The protruding member 24 is formed to have the same width as the other portions of the seal member 5 other than the corresponding contact portion 22. In the contact portion 22, the protruding member 24 is formed of a softer material than the main body portion 23. The sealing member 5 having the above-described configuration is assembled by integrally forming the main body portion 23 and other portions, and then attaching the protruding member 24 to the main body portion 23.

前述した構成の防水ケース１は、グロメット４内にワイヤハーネスの電線を通した後、該グロメット４を箱本体２に取り付けて、該箱本体２内にワイヤハーネスのコネクタを収容する。そして、蓋体３を箱本体２に取り付けて、前述した構成の防水ケース１は、組み立てられる。すると、防水ケース１は、図５などに示すように、シール部材５がリップ１０，２０などから押圧されて弾性変形して、蓋体３と箱本体２との間を水密に保って、箱本体２に水などの液体が浸入することを防止する。   In the waterproof case 1 having the above-described configuration, after the wire harness wire is passed through the grommet 4, the grommet 4 is attached to the box body 2, and the connector of the wire harness is accommodated in the box body 2. And the cover 3 is attached to the box main body 2, and the waterproof case 1 of the structure mentioned above is assembled. Then, as shown in FIG. 5 and the like, the waterproof case 1 is elastically deformed by the seal member 5 being pressed from the lips 10 and 20 and the like, so that the space between the lid 3 and the box body 2 is kept watertight. This prevents liquid such as water from entering the main body 2.

本実施形態によれば、シール部材５の当接部２２が他の部分よりも厚みＴが厚く形成されているので、箱本体２と蓋体３とが互いに取り付けられると、当接部２２が他の部分よりも大きく弾性変形する。このため、当接部２２の一部が箱本体２とグロメット４の板部１７との間の隙間に侵入するとともに、グロメット４のリップ２０などを覆う。このため、シール部材５は、開口部９寄り（の近傍）の箱本体２とグロメット４の板部１７との間の隙間を塞ぐこととなって、該隙間を通して水などの液体が箱本体２内に浸入することを防止できる。   According to this embodiment, since the contact portion 22 of the seal member 5 is formed to have a thickness T greater than that of the other portions, when the box body 2 and the lid 3 are attached to each other, the contact portion 22 is It is elastically deformed more than other parts. For this reason, a part of the contact portion 22 enters the gap between the box body 2 and the plate portion 17 of the grommet 4 and covers the lip 20 of the grommet 4 and the like. For this reason, the seal member 5 closes the gap between the box body 2 near (in the vicinity of) the opening 9 and the plate portion 17 of the grommet 4, and liquid such as water passes through the gap. Intrusion can be prevented.

突出部材２４が本体部２３よりも柔らかい材料で構成されているので、当接部２２が箱本体２と蓋体３との間で弾性変形する際に、突出部材２４が本体部２３よりも弾性変形する。このため、箱本体２とグロメット４の板部１７との間の隙間寄りの突出部材２４がより弾性変形することで、当該隙間を突出部材２４が確実に塞ぐこととなる。したがって、箱本体２とグロメット４の板部１７との間の隙間を通して水などの液体が浸入することを防止できる。   Since the protruding member 24 is made of a material softer than the main body 23, the protruding member 24 is more elastic than the main body 23 when the contact portion 22 is elastically deformed between the box main body 2 and the lid 3. Deform. For this reason, the protruding member 24 near the gap between the box body 2 and the plate portion 17 of the grommet 4 is more elastically deformed, so that the protruding member 24 reliably closes the gap. Therefore, liquid such as water can be prevented from entering through the gap between the box body 2 and the plate portion 17 of the grommet 4.

また、図６は、本発明ではないが、参考となる参考例のシール部材を示す斜視図である。図６に示す参考例のシール部材５は、当接部２２の幅Ｈが他の部分よりも広い。なお、図６において、前述した実施形態と同一部分には、同一符号を付して説明を省略する。この図６に示された場合において、シール部材５の当接部２２が他の部分よりも幅Ｈが広く形成されているので、箱本体２と蓋体３とが互いに取り付けられると、当接部２２が他の部分よりも大きく弾性変形する。このため、当接部２２の一部が箱本体２とグロメット４の板部１７との間の隙間に侵入するとともに、グロメット４のリップ２０などを覆う。このため、シール部材５は、開口部９寄り（の近傍）の箱本体２とグロメット４の板部１７との間の隙間を塞ぐこととなって、該隙間を通して水などの液体が箱本体２内に浸入することを防止できる。   FIG. 6 is a perspective view showing a sealing member of a reference example which is not the present invention but serves as a reference. In the sealing member 5 of the reference example shown in FIG. 6, the width H of the contact portion 22 is wider than the other portions. In FIG. 6, the same parts as those in the above-described embodiment are denoted by the same reference numerals and description thereof is omitted. In the case shown in FIG. 6, the contact portion 22 of the seal member 5 is formed to have a width H wider than the other portions. Therefore, when the box body 2 and the lid 3 are attached to each other, the contact portion 22 The part 22 is elastically deformed more greatly than the other parts. For this reason, a part of the contact portion 22 enters the gap between the box body 2 and the plate portion 17 of the grommet 4 and covers the lip 20 of the grommet 4 and the like. For this reason, the seal member 5 closes the gap between the box body 2 near (in the vicinity of) the opening 9 and the plate portion 17 of the grommet 4, and liquid such as water passes through the gap. Intrusion can be prevented.

また、本発明では、図７ないし図１０に示された第２の実施形態にかかる防水ケース１のように、当接部２２の幅Ｈと厚みＴの双方を、他の部分の幅ｈと厚みｔの双方よりも大きくしても良い。なお、本実施形態において、前述した実施形態などと同一部分には、同一符号を付して説明を省略する。   Moreover, in this invention, like the waterproof case 1 concerning 2nd Embodiment shown by FIG. 7 thru | or FIG. 10, both width H and thickness T of the contact part 22 are made into width h of another part. It may be larger than both thicknesses t. In the present embodiment, the same parts as those in the above-described embodiments are denoted by the same reference numerals, and description thereof is omitted.

本実施形態において、当接部２２は、図７ないし図９に示すように、前述した本体部２３と、突出部材２４とを備えている。本実施形態において、本体部２３は、他の部分と厚みと幅が等しく形成されている。突出部材２４は、その幅Ｈが本体部２３の幅よりも広く形成されており、該本体部２３の周板７の縁７ａ寄りに重ねられて、該本体部２３に取り付けられている。さらに、突出部材２４は、本体部２３の外縁部寄りもシール部材５の外側に突出した格好で当該本体部２３に取り付けられている。   In this embodiment, the contact part 22 is provided with the main-body part 23 and the protrusion member 24 which were mentioned above, as shown in FIG. 7 thru | or FIG. In the present embodiment, the main body portion 23 is formed to have the same thickness and width as other portions. The protruding member 24 has a width H that is wider than the width of the main body 23, and is attached to the main body 23 so as to overlap the edge 7 a of the peripheral plate 7 of the main body 23. Further, the protruding member 24 is attached to the main body portion 23 in such a manner that the vicinity of the outer edge portion of the main body portion 23 protrudes to the outside of the seal member 5.

このため、突出部材２４は、本体部２３から箱本体２の周板７側に突出しているとともに、前記重なる方向Ｋに対して直交する方向Ｃ（図７乃至図９中に矢印で示す）に沿って、箱本体２及び蓋体３の外側に向かって突出している。即ち、本実施形態では、突出部材２４は、特許請求の範囲に記載された突出部と第２突出部との双方をなしている。   For this reason, the protruding member 24 protrudes from the main body portion 23 toward the peripheral plate 7 of the box main body 2 and in a direction C (indicated by an arrow in FIGS. 7 to 9) orthogonal to the overlapping direction K. Along the outer side of the box body 2 and the lid body 3, it protrudes. That is, in the present embodiment, the projecting member 24 forms both the projecting portion and the second projecting portion described in the claims.

また、突出部材２４には、図７ないし図９に示すように、当接面２４ａが形成されている。当接面２４ａは、突出部材２４の内縁部でかつ周板７寄りに縁部に、該突出部材２４の全長に亘って形成されている。当接面２４ａは、前述した重なる方向Ｋと、該重なる方向Ｋに対して直交する方向Ｃとの双方に対して傾斜しているとともに、その傾きが突出部材２４の全長に亘って一定に形成されている。当接面２４ａは、前述した重なる方向Ｋに対して直交する方向Ｃに沿って、箱本体２及び蓋体３の外側に向かうにしたがって徐々に箱本体２の周板７の縁７ａに近づく方向に傾斜している。また、当接面２４ａは、前述した重なる方向Ｋに沿って、グロメット４のリップ２０の外縁部と相対する位置に配置されている。即ち、当接面２４ａは、箱本体２と蓋体３とが互いに取り付けられると、周板７の縁７ａとグロメット４のリップ２０との双方と当接する。また、本実施形態においても、突出部材２４は、本体部２３を構成する材料よりも柔らかい材料で形成されている。   Further, as shown in FIGS. 7 to 9, the projecting member 24 is formed with a contact surface 24a. The contact surface 24 a is formed over the entire length of the protruding member 24 at the inner edge of the protruding member 24 and at the edge near the peripheral plate 7. The contact surface 24 a is inclined with respect to both the overlapping direction K and the direction C perpendicular to the overlapping direction K, and the inclination is formed constant over the entire length of the protruding member 24. Has been. The contact surface 24a gradually approaches the edge 7a of the peripheral plate 7 of the box body 2 along the direction C perpendicular to the overlapping direction K described above toward the outside of the box body 2 and the lid 3. It is inclined to. Further, the contact surface 24a is arranged at a position facing the outer edge portion of the lip 20 of the grommet 4 along the overlapping direction K described above. That is, the contact surface 24a contacts both the edge 7a of the peripheral plate 7 and the lip 20 of the grommet 4 when the box body 2 and the lid 3 are attached to each other. Also in this embodiment, the protruding member 24 is formed of a material softer than the material constituting the main body portion 23.

本実施形態においても、前述した構成の防水ケース１は、グロメット４内にワイヤハーネスの電線を通した後、該グロメット４を箱本体２に取り付けて、該箱本体２内にワイヤハーネスのコネクタを収容する。そして、柱状部２１及び本体部２３をシール部材収容溝１５内に挿入してシール部材５を蓋体３に取り付けた後、蓋体３を箱本体２に取り付けて、前述した構成の防水ケース１は、組み立てられる。すると、防水ケース１は、図１０などに示すように、シール部材５が周板７の縁７ａに設けられたリップ１０及びグロメット４のリップ２０などから押圧されて弾性変形する。特に、シール部材５の突出部材２４が、周板７の縁７ａのリップ２０と該リップ２０よりも外側の部分に亘って、箱本体２に広範囲に当接する。そして、シール部材５は、蓋体３と箱本体２との間を水密に保って、箱本体２に水などの液体が浸入することを防止する。   Also in the present embodiment, the waterproof case 1 having the above-described configuration is configured such that after the wire harness wire is passed through the grommet 4, the grommet 4 is attached to the box body 2, and the connector of the wire harness is installed in the box body 2. Accommodate. And after inserting the columnar part 21 and the main-body part 23 in the sealing member accommodation groove | channel 15 and attaching the sealing member 5 to the cover body 3, the cover body 3 is attached to the box main body 2, and the waterproof case 1 of the structure mentioned above. Is assembled. Then, as shown in FIG. 10 and the like, the waterproof case 1 is elastically deformed by the seal member 5 being pressed from the lip 10 provided on the edge 7a of the peripheral plate 7, the lip 20 of the grommet 4, and the like. In particular, the protruding member 24 of the seal member 5 abuts the box body 2 over a wide range across the lip 20 of the edge 7 a of the peripheral plate 7 and a portion outside the lip 20. And the sealing member 5 keeps between the cover 3 and the box main body 2 watertight, and prevents liquids, such as water, permeating into the box main body 2.

本実施形態によれば、シール部材５の当接部２２の全長に亘って、箱本体２と蓋体３とが重なる方向Ｋと当該重なる方向Ｋに対して直交する方向Ｃとの双方に対して傾斜した当接面２４ａが設けられているので、該当接部２２と周板７の縁７ａ及びグロメット４との接触面積が、シール部材５の他の部分よりも大きくなる。したがって、シール部材５は、開口部９寄り（の近傍）の箱本体２とグロメット４との間の隙間を塞ぐこととなって、該隙間を通して水などの液体が浸入することを防止できる。   According to the present embodiment, over the entire length of the contact portion 22 of the seal member 5, both the direction K in which the box body 2 and the lid 3 overlap and the direction C orthogonal to the overlapping direction K. Since the inclined contact surface 24 a is provided, the contact area between the corresponding contact portion 22 and the edge 7 a of the peripheral plate 7 and the grommet 4 is larger than the other portions of the seal member 5. Therefore, the seal member 5 closes the gap between the box body 2 and the grommet 4 near (in the vicinity of) the opening 9, and can prevent liquid such as water from entering through the gap.

シール部材５の当接部２２の全長に亘って設けられた当接面２４ａが、外側に向かうにしたがって周板７の縁７ａに徐々に近づく方向に傾斜しているので、当接部２２と周板７の縁７ａとの当接箇所が箱本体２の内側に向かうにしたがって徐々に上方に位置することとなる。したがって、シール部材５と周板７の縁７ａとの間から箱本体２内に水などの液体が浸入しにくくなる。   Since the contact surface 24a provided over the entire length of the contact portion 22 of the seal member 5 is inclined in a direction gradually approaching the edge 7a of the peripheral plate 7 toward the outside, the contact portion 22 and The contact portion with the edge 7 a of the peripheral plate 7 is gradually positioned upward as it goes toward the inside of the box body 2. Accordingly, it becomes difficult for liquid such as water to enter the box body 2 from between the seal member 5 and the edge 7a of the peripheral plate 7.

当接部２２が、本体部２３と、本体部２３から周板７に向かって突出した突出部と該突出部から外側に突出した第２突出部との双方をなす突出部材２４を備えているので、この突出部材２４の大部分が、周板７の縁７ａ及びグロメット４のリップ２０よりも箱本体２の外側に位置付けられる。したがって、シール部材５と周板７の縁７ａとの間から箱本体２内に水などの液体がより浸入しにくくなる。   The contact portion 22 includes a main body portion 23 and a projecting member 24 that forms both a projecting portion projecting from the main body portion 23 toward the peripheral plate 7 and a second projecting portion projecting outward from the projecting portion. Therefore, most of the protruding member 24 is positioned outside the box body 2 with respect to the edge 7a of the peripheral plate 7 and the lip 20 of the grommet 4. Therefore, liquid such as water is less likely to enter the box body 2 from between the seal member 5 and the edge 7a of the peripheral plate 7.

また、本発明では、当接部２２の本体部２３と突出部材２４とを一体に形成しても良く即ちシール部材５の一つの部品としても良く、当接部２２の本体部２３と突出部材２４とを同じ材料で形成しても良い。さらに、本発明では、当接面２４ａを第２の実施形態の逆向きに傾斜させてもよく、第２突出部即ち突出部材２４を突出部即ち本体部２３から第２の実施形態の逆向きに突出させても良い。   Further, in the present invention, the main body portion 23 and the protruding member 24 of the contact portion 22 may be integrally formed, that is, may be a single part of the seal member 5. 24 may be formed of the same material. Furthermore, in the present invention, the contact surface 24a may be inclined in the reverse direction of the second embodiment, and the second projecting portion, that is, the projecting member 24 is moved from the projecting portion, that is, the main body portion 23 in the reverse direction of the second embodiment. You may make it project.

また、前述した実施形態では、防水ケース１は、コネクタを収容している。しかしながら、本発明では、防水ケース１は、リレーボックスやヒューズボックスなどの所謂電気接続箱を収容しても良く、ＥＣＵなどの各種の電子機器を収容しても良い。さらに、本発明では、グロメット４に限らず、カバー部材としての種々の物品を用いても良い。   In the embodiment described above, the waterproof case 1 houses a connector. However, in the present invention, the waterproof case 1 may accommodate a so-called electrical junction box such as a relay box or a fuse box, or may accommodate various electronic devices such as an ECU. Furthermore, in this invention, you may use not only the grommet 4 but the various articles | goods as a cover member.

また、本発明では、シール部材５を箱本体２に取り付けても良い。要するに、本発明では、シール部材５を箱本体２と蓋体３とのうち一方に取り付ければ良い。   In the present invention, the seal member 5 may be attached to the box body 2. In short, in the present invention, the seal member 5 may be attached to one of the box body 2 and the lid 3.

なお、前述した実施形態は本発明の代表的な形態を示したに過ぎず、本発明は、実施形態に限定されるものではない。即ち、本発明の骨子を逸脱しない範囲で種々変形して実施することができる。   In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

１ 防水ケース
２ 箱本体
３ 蓋体
４ グロメット（カバー部材）
５ シール部材
７ 周板
７ａ 縁
９ 開口部
１１ 切欠き部
２２ 当接部（当接部分）
２３ 本体部
２４ 突出部材（突出部、第２突出部）
２４ａ 当接面
Ｔ 当接部の厚み
ｔ 他の部分の厚み
Ｈ 当接部の幅
ｈ 他の部分の幅
Ｋ 重なる方向
Ｃ 直交する方向 1 Waterproof Case 2 Box Body 3 Lid 4 Grommet (Cover Member)
5 Seal member 7 Peripheral plate 7a Edge 9 Opening portion 11 Notch portion 22 Contact portion (contact portion)
23 Main body 24 Projecting member (projecting part, second projecting part)
24a Contact surface T Contact portion thickness t Other portion thickness H Contact portion width h Other portion width K Overlapping direction C Orthogonal direction

Claims (2)

複数の周板に囲まれて形成された開口部が設けられた箱本体と、
前記箱本体に取り付けられるとともに、該箱本体に取り付けられると前記開口部を塞ぐ蓋体と、
環状に形成され、かつ前記箱本体と前記蓋体とのうち一方に取り付けられるとともに、前記周板の縁と当接して、前記箱本体と前記蓋体との間を水密に保つシール部材と、を備えた防水ケースにおいて、
前記複数の周板のうち少なくとも一つには、前記開口部寄りの縁から該開口部から離れる方向に前記周板を切り欠いた切欠き部が形成され、
前記箱本体に取り付けられるとともに、該箱本体に取り付けられると、切欠き部を塞ぐカバー部材を更に備え、
前記シール部材の前記切欠き部が設けられた周板の縁及び前記カバー部材の縁と当接する当接部分は、他の部分よりも厚みが厚く形成されている
ことを特徴とする防水ケース。 A box body provided with an opening formed surrounded by a plurality of peripheral plates;
A lid that is attached to the box body and closes the opening when attached to the box body;
A seal member that is formed in an annular shape and is attached to one of the box body and the lid body, abuts against an edge of the peripheral plate, and keeps the space between the box body and the lid body watertight; In a waterproof case with
At least one of the plurality of peripheral plates is formed with a notch formed by notching the peripheral plate in a direction away from the opening from an edge near the opening,
Attached to the box body, and further provided with a cover member that closes the notch when attached to the box body,
The waterproof case, wherein the edge of the peripheral plate provided with the cutout portion of the seal member and the contact portion that contacts the edge of the cover member are formed thicker than other portions. 前記当接部分は、前記他の部分と厚みが等しい本体部と、該本体部に重ねられて前記他の部分よりも前記周板側に突出した突出部と、を備えている
ことを特徴とする請求項１に記載の防水ケース。 The contact portion includes a main body portion having a thickness equal to that of the other portion, and a protruding portion that is superimposed on the main body portion and protrudes toward the peripheral plate side with respect to the other portion. The waterproof case according to claim 1.
JP2012228226A 2006-03-06 2012-10-15 Waterproof case Active JP5536170B2 (en)

Priority Applications (1)

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JP2012228226A JP5536170B2 (en) 2006-03-06 2012-10-15 Waterproof case

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Application Number Priority Date Filing Date Title
JP2006059816 2006-03-06
JP2006059816 2006-03-06
JP2012228226A JP5536170B2 (en) 2006-03-06 2012-10-15 Waterproof case

Related Parent Applications (1)

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Publication number Priority date Publication date Assignee Title
GB2554911A (en) * 2016-10-13 2018-04-18 Trw Ltd ECU housing and cover for use therein

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* Cited by examiner, † Cited by third party
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JPH11261254A (en) * 1998-03-13 1999-09-24 Japan Aviation Electronics Ind Ltd Fitting structure for printed board
JP3963801B2 (en) * 2002-08-05 2007-08-22 矢崎総業株式会社 Seal structure of grommet for electrical junction box

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