JP4930850B2 - Waterproof structure and housing of electronic equipment - Google Patents

Waterproof structure and housing of electronic equipment Download PDF

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JP4930850B2
JP4930850B2 JP2007260884A JP2007260884A JP4930850B2 JP 4930850 B2 JP4930850 B2 JP 4930850B2 JP 2007260884 A JP2007260884 A JP 2007260884A JP 2007260884 A JP2007260884 A JP 2007260884A JP 4930850 B2 JP4930850 B2 JP 4930850B2
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case
protrusion
elastic protrusion
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elastic
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JP2009094136A (en
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康彦 川崎
成高 鈴木
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NEC Casio Mobile Communications Ltd
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Description

本発明は、防水構造及び電子機器の筐体に関し、特に２つのケースの突き合わせ部分の防水構造及びそれを利用した電子機器の筐体に関する。   The present invention relates to a waterproof structure and a casing of an electronic device, and more particularly to a waterproof structure of a butt portion of two cases and an electronic device casing using the waterproof structure.

近年、携帯電話機に代表されるような電子機器が広く普及している。電子機器の小型化が求められ、併せて、電子機器の防水対策も進められている。電子機器の防水対策として、パッキンが用いられている（例えば、特許文献１参照）。即ち、溝が電子機器筐体の一方のケースの縁に沿ってそのケースの全周にわたって形成され、その溝にパッキンが嵌め込まれ、リブが他方のケースの縁に沿ってそのケースの全周にわたって形成され、両方のケースが突き合わせられることによって、リブがパッキンに圧接されている。
特開平８−２００８２号公報 In recent years, electronic devices such as mobile phones have become widespread. There is a demand for miniaturization of electronic devices, and at the same time, measures for waterproofing electronic devices are being promoted. As a waterproof measure for electronic devices, packing is used (for example, see Patent Document 1). That is, a groove is formed over the entire circumference of the case along the edge of one case of the electronic device housing, a packing is fitted into the groove, and a rib is formed over the entire circumference of the case along the edge of the other case. The rib is pressed against the packing by being formed and abutting both cases.
JP-A-8-20082

ところで、パッキンを埋め込むための溝がケースの周縁部に凹設されているから、溝の分だけケースの幅を広くしなければならず、電子機器筐体の小型化が図れない。また、ケースが加工しにくいガラス材等からなるものである場合、そのケースには溝を形成しにくい。
一方、ケースに溝を形成せずに、パッキンがリブによって圧縮されると、パッキンの位置がずれてしまい、防水性を実現できない虞がある。パッキンを溝に埋め込まずにパッキンの位置ずれを防止するために、パッキンに対する圧縮力を低減すると、防水性が低減してしまう。
そこで、本発明の課題は、ケースに溝を形成せずとも高い防水性を確保することである。 By the way, since the groove for embedding packing is recessed in the peripheral part of the case, the width of the case must be increased by the amount of the groove, and the electronic device casing cannot be downsized. Further, when the case is made of a glass material that is difficult to process, it is difficult to form a groove in the case.
On the other hand, if the packing is compressed by the rib without forming a groove in the case, the position of the packing may be shifted, and waterproofing may not be realized. If the compressive force on the packing is reduced in order to prevent the displacement of the packing without embedding the packing in the groove, the waterproof property is reduced.
Then, the subject of this invention is ensuring high waterproofness, without forming a groove | channel in a case.

請求項１に係る発明によれば、
第１のケースと、
前記第１のケースに突き合わせられた第２のケースと、
前記第１のケースの突合わせ面に凸設されるとともに、その突合わせ面に対して傾斜した斜面を有する剛性突起と、
前記斜面に凸設され、前記剛性突起に沿うよう設けられ、前記第２のケースの突合わせ面に圧接された弾性突起と、を備え、
前記弾性突起は、前記斜面に密着して配置される底面から前記第２のケースの突合わせ面に圧接された先端部に向かって先細りに設けられていることを特徴とする電子機器の筐体が提供される。
According to the invention of claim 1 ,
The first case,
A second case butted against the first case;
A rigid protrusion having a slope inclined with respect to the abutting surface, which is provided on the abutting surface of the first case;
An elastic protrusion that is provided on the inclined surface, is provided along the rigid protrusion, and is pressed against the butting surface of the second case,
The casing of the electronic device, wherein the elastic protrusion is provided so as to taper from a bottom surface arranged in close contact with the inclined surface toward a tip portion pressed against the butting surface of the second case. Is provided.

請求項２に係る発明によれば、
前記第２のケースの突合わせ面に凸設され、前記弾性突起に沿うよう設けられた第２の剛性突起を更に備えることを特徴とする請求項１に記載の電子機器の筐体が提供される。
According to the invention of claim 2 ,
2. The electronic device casing according to claim 1 , further comprising a second rigid protrusion that is provided on the butting surface of the second case and is provided along the elastic protrusion. The

請求項３に係る発明によれば、
一対の部材の突合わせ部分の防水構造において、
一方の部材の突合わせ面に凸設されるとともに、その突合わせ面に対して傾斜した斜面を有する剛性突起と、
前記斜面に凸設され、前記剛性突起に沿うよう設けられ、他方の部材の突合わせ面に圧接された弾性突起と、を備え、
前記弾性突起は、前記斜面に密着して配置される底面から前記他方の部材の突合わせ面に圧接された先端部に向かって先細りに設けられていることを特徴とする防水構造が提供される。
According to the invention of claim 3 ,
In the waterproof structure of the butted portion of the pair of members,
A rigid protrusion having a slope inclined with respect to the abutting surface, which is convexly provided on the abutting surface of one member;
An elastic protrusion that is provided on the slope, is provided along the rigid protrusion, and is pressed against the butting surface of the other member;
A waterproof structure is provided in which the elastic protrusion is provided so as to taper from a bottom surface arranged in close contact with the inclined surface toward a tip portion pressed against the butting surface of the other member. .

請求項４に係る発明によれば、
前記他方の部材の突合わせ面に凸設され、前記弾性突起に沿うよう設けられた第２の剛性突起を更に備えることを特徴とする請求項３に記載の防水構造が提供される。
According to the invention of claim 4 ,
4. The waterproof structure according to claim 3 , further comprising a second rigid protrusion that is provided on the butting surface of the other member and is provided along the elastic protrusion.

本発明によれば、凸設された弾性突起がその弾性突起に沿うように設けられた剛性突起に受けられ、その弾性突起の大変形が抑えられる。そのため、突合わせ面に溝を設けずとも、防水性を確保することができる。更には、弾性突起に対する圧縮力が小さくとも、防水性を確保することができる。   According to the present invention, the protruding elastic protrusion is received by the rigid protrusion provided along the elastic protrusion, and large deformation of the elastic protrusion is suppressed. Therefore, waterproofness can be ensured without providing a groove on the abutting surface. Furthermore, waterproofness can be ensured even if the compressive force on the elastic protrusion is small.

以下に、本発明を実施するための好ましい形態について図面を用いて説明する。但し、以下に述べる実施形態には、本発明を実施するために技術的に好ましい種々の限定が付されているが、発明の範囲を以下の実施形態及び図示例に限定するものではない。   Hereinafter, preferred embodiments for carrying out the present invention will be described with reference to the drawings. However, although various technically preferable limitations for implementing the present invention are given to the embodiments described below, the scope of the invention is not limited to the following embodiments and illustrated examples.

〔第１の実施の形態〕
図１は、電子機器の筐体１を示した分解斜視図である。
第１のケース１０が第２のケース２０に突き合わせられ、第１のケース１０と第２のケース２０の四つ角において第１のケース１０と第２のケース２０がネジ２によって締め付けられている。第１のケース１０と第２のケース２０の結合は爪によるものでもよいし、リベットによるものでもよいし、接着剤によるものでもよい。 [First Embodiment]
FIG. 1 is an exploded perspective view showing a housing 1 of an electronic device.
The first case 10 is abutted against the second case 20, and the first case 10 and the second case 20 are fastened by screws 2 at the four corners of the first case 10 and the second case 20. The connection between the first case 10 and the second case 20 may be a nail, a rivet, or an adhesive.

第２のケース２０は、プラスチック製、ガラス製、金属製又はセラミック製であるが、その材質は特に限定するものではない。第２のケース２０の両面のうち第１のケース１０との突合わせ面２１には収納凹部２２（図６に図示）が形成されており、その収納凹部２２に回路基板が収容されている。第２のケース２０の突合わせ面２１と第１のケース１０の突合わせ面１１が突き合わせられることで、収納凹部２２が第１のケース１０によって覆われる。   The second case 20 is made of plastic, glass, metal, or ceramic, but the material is not particularly limited. A housing recess 22 (shown in FIG. 6) is formed on the abutting surface 21 of the second case 20 with the first case 10, and a circuit board is housed in the housing recess 22. The housing recess 22 is covered with the first case 10 by the butting surface 21 of the second case 20 and the butting surface 11 of the first case 10 being butted.

第１のケース１０は、プラスチック製、ガラス製、金属製又はセラミック製であるが、その材質は特に限定するものではない。なお、第１のケース１０の両面のうち第２のケース２０との突合わせ面１１にも回路基板収納用の収納凹部が形成され、第１のケース１０の収納凹部と第２のケース２０の収納凹部２２が重なるようにして、第１のケース１０と第２のケース２０が突き合わせられてもよい。   The first case 10 is made of plastic, glass, metal, or ceramic, but the material is not particularly limited. A storage recess for storing the circuit board is also formed on the abutting surface 11 of the first case 10 with the second case 20, and the storage recess of the first case 10 and the second case 20 The first case 10 and the second case 20 may be abutted so that the storage recesses 22 overlap.

第１のケース１０と第２のケース２０の突合わせ部分の防水構造について具体的に説明する。第１のケース１０の突合わせ面１１であってその周縁部には、弾性突起３０が凸設されている。弾性突起３０は、突合わせ面１１の周縁部の全周にわたって形成されている。弾性突起３０はゴム材料からなるものであり、２色成型法、インサート成型法、その他の成型法によって弾性突起３０が形成される。そのため、弾性突起３０が突合わせ面１１に密着している。   The waterproof structure of the abutting portion between the first case 10 and the second case 20 will be specifically described. Elastic protrusions 30 are provided on the peripheral surface of the butting surface 11 of the first case 10. The elastic protrusion 30 is formed over the entire periphery of the peripheral portion of the abutting surface 11. The elastic protrusion 30 is made of a rubber material, and the elastic protrusion 30 is formed by a two-color molding method, an insert molding method, or other molding methods. Therefore, the elastic protrusion 30 is in close contact with the abutting surface 11.

図２は、図１のII−IIに沿った切断面の矢視端面図である。図２に示すように、弾性突起３０は三角形状を成している。具体的には、弾性突起３０の径方向内側の面３１は突合わせ面１１に対してほぼ垂直な面となっており、径方向外側の面３２は突合わせ面１１に対して傾斜し、弾性突起３０の先端部３３が面３１と面３２によって挟まれる稜線部であり、その先端部３３が丸められている。   FIG. 2 is an arrow end view of the cut surface along II-II in FIG. 1. As shown in FIG. 2, the elastic protrusion 30 has a triangular shape. Specifically, the radially inner surface 31 of the elastic protrusion 30 is a surface substantially perpendicular to the abutting surface 11, and the radially outer surface 32 is inclined with respect to the abutting surface 11, and is elastic. The tip portion 33 of the protrusion 30 is a ridge line portion sandwiched between the surfaces 31 and 32, and the tip portion 33 is rounded.

弾性突起３０の断面形状は三角形状に限るものではなく、例えば、図３〜図５に示すようにしてもよい。図３の場合は、弾性突起３０Ａの径方向内側の面３１Ａと外側の面３２Ａがほぼ平行であり、その弾性突起３０Ａの先端部３３Ａが丸められている。図４の場合は、弾性突起３０Ｂの断面形状が台形型であり、弾性突起３０Ｂの先端部の面３３Ｂが底面３４Ｂに平行であり、径方向内側の面３１Ｂが突合わせ面１１に対してほぼ垂直であり、径方向外側の面３２Ｂが突合わせ面１１に対して傾斜している。図５の場合は、弾性突起３０Ｃの断面形状が２つ山状であり、弾性突起３０Ｃが径方向内側の稜線部３４Ｃと径方向外側の稜線部３５Ｃとを有する。   The cross-sectional shape of the elastic protrusion 30 is not limited to a triangular shape, and for example, it may be as shown in FIGS. In the case of FIG. 3, the radially inner surface 31A and the outer surface 32A of the elastic protrusion 30A are substantially parallel, and the tip 33A of the elastic protrusion 30A is rounded. In the case of FIG. 4, the cross-sectional shape of the elastic protrusion 30 </ b> B is trapezoidal, the surface 33 </ b> B at the tip of the elastic protrusion 30 </ b> B is parallel to the bottom surface 34 </ b> B, and the radially inner surface 31 </ b> B The vertical and radially outer surface 32B is inclined with respect to the abutting surface 11. In the case of FIG. 5, the elastic protrusion 30 </ b> C has two cross-sectional shapes, and the elastic protrusion 30 </ b> C has a radially inner ridge line portion 34 </ b> C and a radially outer ridge line portion 35 </ b> C.

図６は、第１のケース１０と第２のケース２０を突き合わせた状態を示した端面図である。図６に示すように、第２のケース２０の突合わせ面２１であってその周縁部には、剛性突起４０が凸設されている。剛性突起４０と第２のケース２０は一体形成されたものである。剛性突起４０は突合わせ面２１の周縁部の全周にわたって形成されている。収納凹部２２が剛性突起４０の径方向内側に形成されている。   FIG. 6 is an end view showing a state in which the first case 10 and the second case 20 are brought into contact with each other. As shown in FIG. 6, a rigid protrusion 40 is projected from the peripheral portion of the abutting surface 21 of the second case 20. The rigid protrusion 40 and the second case 20 are integrally formed. The rigid protrusion 40 is formed over the entire circumference of the peripheral edge of the abutting surface 21. The housing recess 22 is formed on the radially inner side of the rigid protrusion 40.

第１のケース１０と第２のケース２０を突き合わせた状態では、弾性突起３０の径方向内側に剛性突起４０が位置し、弾性突起３０が剛性突起４０に沿って、弾性突起３０と剛性突起４０が互いに近接している。突合わせ面１１を基準とした弾性突起３０の突出高さは、突合わせ面２１を基準とした剛性突起４０の突出高さよりも高い。なお、剛性突起４０が弾性突起３０の径方向外側に位置してもよい。   In a state where the first case 10 and the second case 20 are in contact with each other, the rigid protrusion 40 is located on the radially inner side of the elastic protrusion 30, and the elastic protrusion 30 is along the rigid protrusion 40, and the elastic protrusion 30 and the rigid protrusion 40. Are close to each other. The protruding height of the elastic protrusion 30 with respect to the butting surface 11 is higher than the protruding height of the rigid protrusion 40 with respect to the butting surface 21. Note that the rigid protrusion 40 may be positioned on the radially outer side of the elastic protrusion 30.

第１のケース１０と第２のケース２０が突き合わせられると、弾性突起３０が第２のケース２０の突合わせ面２１に当接し、更に図１に示すように第１のケース１０と第２のケース２０がネジ２によって締結されると、弾性突起３０が圧縮される。   When the first case 10 and the second case 20 are abutted, the elastic protrusion 30 comes into contact with the abutting surface 21 of the second case 20, and as shown in FIG. 1, the first case 10 and the second case 20 When the case 20 is fastened with the screw 2, the elastic protrusion 30 is compressed.

以上のように、本実施形態によれば、第１のケース１０の突合わせ面１１に弾性突起３０が凸設され、弾性突起３０が弾性変形し得るから、その弾性突起３０が第２のケース２０の突合わせ面２１に圧接することで、その部分で防水性を得られる。更に、弾性突起３０が成型されることで、弾性突起３０が突合わせ面１１に密着しているから、弾性突起３０が溝に埋め込まれていなくても、弾性突起３０の位置ずれが発生しない。   As described above, according to the present embodiment, the elastic protrusion 30 is protruded on the abutting surface 11 of the first case 10, and the elastic protrusion 30 can be elastically deformed. Therefore, the elastic protrusion 30 is the second case. By being in pressure contact with the 20 butting surfaces 21, waterproofing can be obtained at that portion. Furthermore, since the elastic protrusion 30 is molded and the elastic protrusion 30 is in close contact with the abutting surface 11, even if the elastic protrusion 30 is not embedded in the groove, the elastic protrusion 30 is not displaced.

そして、突合わせ面２１に溝を形成せずとも、防水性を確保することができるため、収納凹部２２の縁から突合わせ面２１の縁までの幅を溝の壁片側ぶんだけ狭くすることができる。そのため、筐体１の全体としての幅も狭くすることができ、コンパクトな筐体１を提供することができる。   And since waterproofness can be ensured without forming a groove | channel in the butt | matching surface 21, the width | variety from the edge of the storage recessed part 22 to the edge of the butt | matching surface 21 can be narrowed only by the wall one side of a groove | channel. it can. For this reason, the overall width of the housing 1 can be reduced, and the compact housing 1 can be provided.

また、弾性突起３０に沿って剛性突起４０が設けられているので、弾性突起３０が変形しても剛性突起４０に受けられ、弾性突起３０が内側に折れ曲がるように変形しない。つまり、筐体１の防水性が高くなっており、特に、筐体１が水中に沈んだ場合でも、耐水性がある。特に、第１のケース１０と第２のケース２０によって弾性突起３０が圧縮される荷重が小さくとも、防水性・耐水性の低減を最小限に抑えることができる。そして、防水性・耐水性を保ち、弾性突起３０に対する圧縮力を小さくしながら、突合わせ面２１からの弾性突起３０の剥離を抑えることができる。   Moreover, since the rigid protrusion 40 is provided along the elastic protrusion 30, even if the elastic protrusion 30 is deformed, it is received by the rigid protrusion 40, and the elastic protrusion 30 is not deformed so as to be bent inward. That is, the waterproof property of the housing 1 is high, and in particular, even when the housing 1 is submerged in water, it has water resistance. In particular, even if the load by which the elastic protrusion 30 is compressed by the first case 10 and the second case 20 is small, the reduction in waterproofness and water resistance can be minimized. And it can suppress peeling of the elastic protrusion 30 from the butt | matching surface 21, maintaining waterproofness and water resistance, and making the compressive force with respect to the elastic protrusion 30 small.

それに対して、図７に示す比較例のように、剛性突起４０が無いと、水圧によって弾性突起３０が内側に折れ曲がるように変形してしまい、特に弾性突起３０に対する圧縮力が小さくなる程、その現象は顕著に現れる。そのため、剛性突起４０がある方が無い場合よりも防水性が高い。   On the other hand, as in the comparative example shown in FIG. 7, if there is no rigid protrusion 40, the elastic protrusion 30 is deformed so as to be bent inward by water pressure. The phenomenon appears prominently. Therefore, the waterproof property is higher than the case where there is no one having the rigid protrusion 40.

また、本実施形態によれば、剛性突起４０は第２のケース２０に形成されており、弾性突起３０は成型法によって第１のケース１０に形成されたものであるから、第１のケース１０がガラス等のように加工しにくい材質であっても、防水性・耐水性を得ることができる。   According to the present embodiment, the rigid protrusion 40 is formed on the second case 20 and the elastic protrusion 30 is formed on the first case 10 by a molding method. Even if the material is difficult to process such as glass, waterproof and water resistance can be obtained.

なお、剛性突起４０が弾性突起３０の径方向外側に位置している場合には、筐体１の外側の圧力が内側の圧力よりも低くなるようなときに、防水性の向上を図ることができる。   In addition, when the rigid protrusion 40 is located on the radially outer side of the elastic protrusion 30, the waterproofness can be improved when the pressure on the outside of the housing 1 is lower than the pressure on the inside. it can.

本発明は上記実施形態に限定されるものではなく、上記実施形態に対して種々の設計変更を行ってもよい。
例えば、図８に示すように、剛性突起４０Ｄの表面４１Ｄを滑らかにしてもよい。つまり、剛性突起４０Ｄの表面４１Ｄが曲線状をなして突合わせ面２１に滑らかに連なっている。このような形状をなした剛性突起４０Ｄを図２〜図５の弾性突起３０Ａ〜３０Ｃの何れかに組み合わせて用いてもよい。剛性突起４０Ｄの表面４１Ｄが滑らかな曲線状をなしているので、塵埃が入隅に堆積するということが起こらず、剛性突起４０Ｄと弾性突起３０Ｄの密接性が保たれ、防水性を確保することができる。また、第１のケース１０と第２のケース２０を突き合わせて筐体１を組み立てる時には、剛性突起４０Ｄが滑らかであるために、剛性突起４０Ｄと弾性突起３０Ｄの位置合わせを行いやすく、防水不良を確実に防止することができる。なお、図８においては、弾性突起３０Ｄの径方向外側の面３２Ｄは突合わせ面１１に対してほぼ垂直な面となっており、径方向内側の面３１Ｄは突合わせ面１１に対して傾斜している。このような断面形状の弾性突起３０Ｄを図３に示された形状の剛性突起４０と組み合わせて用いてもよい。 The present invention is not limited to the above embodiment, and various design changes may be made to the above embodiment.
For example, as shown in FIG. 8, the surface 41D of the rigid protrusion 40D may be smoothed. That is, the surface 41D of the rigid protrusion 40D has a curved shape and is smoothly connected to the abutting surface 21. The rigid protrusion 40D having such a shape may be used in combination with any of the elastic protrusions 30A to 30C of FIGS. Since the surface 41D of the rigid protrusion 40D has a smooth curved shape, dust does not accumulate in the corners, and the tightness of the rigid protrusion 40D and the elastic protrusion 30D is maintained, thereby ensuring waterproofness. Can do. Further, when the housing 1 is assembled by abutting the first case 10 and the second case 20, the rigid protrusion 40D is smooth, so that the alignment of the rigid protrusion 40D and the elastic protrusion 30D can be easily performed, resulting in poor waterproofing. It can be surely prevented. In FIG. 8, the radially outer surface 32 </ b> D of the elastic protrusion 30 </ b> D is substantially perpendicular to the abutting surface 11, and the radially inner surface 31 </ b> D is inclined with respect to the abutting surface 11. ing. The elastic protrusion 30D having such a cross-sectional shape may be used in combination with the rigid protrusion 40 having the shape shown in FIG.

〔第２の実施の形態〕
図９に示すように、第２実施形態では、第１実施形態と同様に、第１のケース１０が第２のケース２０に突き合わせられ、第１のケース１０と第２のケース２０がネジ、爪、リベット又は接着剤によって結合されている。 [Second Embodiment]
As shown in FIG. 9, in the second embodiment, as in the first embodiment, the first case 10 is abutted against the second case 20, and the first case 10 and the second case 20 are screws. Connected by nails, rivets or glue.

第１のケース１０の突合わせ面１１であってその周縁部には、剛性突起５０Ｅが凸設されている。剛性突起５０Ｅは、突合わせ面１１の周縁部の全周にわたって形成されている。剛性突起５０Ｅと第１のケース１０は一体形成されたものである。この剛性突起５０Ｅの断面形状は矩形状又は正方形状である。   Rigid protrusions 50 </ b> E are protruded from the peripheral portion of the abutting surface 11 of the first case 10. The rigid protrusion 50 </ b> E is formed over the entire periphery of the peripheral portion of the abutting surface 11. The rigid protrusion 50E and the first case 10 are integrally formed. The cross-sectional shape of the rigid protrusion 50E is rectangular or square.

第１のケース１０の突合わせ面１１であってその周縁部には、ゴム製の弾性突起３０Ｅが凸設されている。弾性突起３０Ｅは、突合わせ面１１の周縁部の全周にわたって形成されている。弾性突起３０Ｅの断面形状は五角形状である。つまり、径方向内側の面３１Ｅと外側の面３２Ｅが平行であり、上面３３Ｅと底面３４Ｅが平行であり、上面３３Ｅと内側の面３１Ｅの間の面３５Ｅが斜面であり、弾性突起３０Ｅが底面３４Ｅ側から上面３３Ｅ側に向かって先細りに設けられている。   A rubber elastic protrusion 30 </ b> E is protruded from the peripheral surface of the butting surface 11 of the first case 10. The elastic protrusion 30 </ b> E is formed over the entire periphery of the peripheral portion of the abutting surface 11. The cross-sectional shape of the elastic protrusion 30E is a pentagonal shape. That is, the radially inner surface 31E and the outer surface 32E are parallel, the upper surface 33E and the bottom surface 34E are parallel, the surface 35E between the upper surface 33E and the inner surface 31E is an inclined surface, and the elastic protrusion 30E is the bottom surface. It is tapered from the 34E side toward the upper surface 33E side.

弾性突起３０Ｅの突出高さは剛性突起５０Ｅの突出高さよりも高い。弾性突起３０Ｅが剛性突起５０Ｅの径方向外側に位置し、弾性突起３０Ｅが剛性突起５０Ｅに沿っている。そして、弾性突起３０Ｅの径方向内側の面３１Ｅと剛性突起５０Ｅの径方向外側の面５２Ｅが密着している。なお、弾性突起３０Ｅが剛性突起５０Ｅの径方向内側に位置し、弾性突起３０Ｅの径方向外側の面３２Ｅと剛性突起５０Ｅの径方向内側の面５１Ｅが密着してもよい。   The protruding height of the elastic protrusion 30E is higher than the protruding height of the rigid protrusion 50E. The elastic protrusion 30E is located on the radially outer side of the rigid protrusion 50E, and the elastic protrusion 30E is along the rigid protrusion 50E. The radially inner surface 31E of the elastic protrusion 30E and the radially outer surface 52E of the rigid protrusion 50E are in close contact with each other. The elastic protrusion 30E may be positioned on the radially inner side of the rigid protrusion 50E, and the radially outer surface 32E of the elastic protrusion 30E and the radially inner surface 51E of the rigid protrusion 50E may be in close contact with each other.

第１のケース１０と第２のケース２０が突き合わせられ、弾性突起３０Ｅが第２のケース２０の突合わせ面２１に圧接されている。   The first case 10 and the second case 20 are abutted, and the elastic protrusion 30 </ b> E is in pressure contact with the abutting surface 21 of the second case 20.

以上のように、本実施形態によれば、弾性突起３０Ｅに沿って剛性突起５０Ｅが設けられているので、水圧等によっても弾性突起３０Ｅが大変形せず、防水性・耐水性が高くなっている。また、第２のケース２０の突合わせ面２１に溝や突起を設けずとも済み、第２のケース２０がガラス等のように加工しにくい材質であっても、防水性・耐水性を得ることができる。また、弾性突起３０Ｅが先細りに設けられているので、弾性突起３０Ｅが更に圧縮されたときでも、弾性突起３０Ｅの逃げが確保される。   As described above, according to the present embodiment, since the rigid protrusion 50E is provided along the elastic protrusion 30E, the elastic protrusion 30E is not greatly deformed by water pressure or the like, and the waterproofness and water resistance are improved. Yes. Further, it is not necessary to provide grooves or protrusions on the abutting surface 21 of the second case 20, and even if the second case 20 is made of a material that is difficult to process, such as glass, it is possible to obtain waterproofness and water resistance. Can do. Further, since the elastic protrusion 30E is provided in a tapered shape, the escape of the elastic protrusion 30E is ensured even when the elastic protrusion 30E is further compressed.

なお、図９においては、突合わせ面２１に突起が形成されていないが、図１０に示すように、第１実施形態の場合と同様に、第２のケース２０の突合わせ面２１に剛性突起４０Ｅが凸設され、その剛性突起４０Ｅが弾性突起３０Ｅに沿っていてもよい。この剛性突起４０Ｅの断面形状は矩形状であるが、剛性突起４０Ｅの断面形状が第１実施形態における剛性突起４０又は剛性突起４０Ｄの断面形状と同一であってもよい。図１０では、剛性突起４０Ｅが、弾性突起３０Ｅの径方向内側に位置しているが、弾性突起３０Ｅの径方向外側に位置してもよい。剛性突起４０Ｅと剛性突起５０Ｅのうち一方が弾性突起３０Ｅの径方向内側に位置し、他方が弾性突起３０Ｅの径方向内側に位置していれば、筐体の外側の圧力が内側の圧力よりも高い場合でも低い場合でも、防水性の向上を図ることができる。   In FIG. 9, no protrusion is formed on the abutting surface 21, but as shown in FIG. 10, as in the case of the first embodiment, a rigid protrusion is formed on the abutting surface 21 of the second case 20. 40E may be protruded, and the rigid protrusion 40E may be along the elastic protrusion 30E. The cross-sectional shape of the rigid protrusion 40E is rectangular, but the cross-sectional shape of the rigid protrusion 40E may be the same as the cross-sectional shape of the rigid protrusion 40 or the rigid protrusion 40D in the first embodiment. In FIG. 10, the rigid protrusion 40E is located on the radially inner side of the elastic protrusion 30E, but may be located on the radially outer side of the elastic protrusion 30E. If one of the rigid protrusion 40E and the rigid protrusion 50E is located on the radially inner side of the elastic protrusion 30E and the other is located on the radially inner side of the elastic protrusion 30E, the pressure on the outside of the housing is higher than the pressure on the inside. Whether it is high or low, waterproofness can be improved.

〔第３の実施の形態〕
図１１に示すように、第３実施形態では、第１実施形態と同様に、第１のケース１０が第２のケース２０に突き合わせられ、第１のケース１０と第２のケース２０がネジ、爪、リベット又は接着剤によって結合されている。 [Third Embodiment]
As shown in FIG. 11, in the third embodiment, as in the first embodiment, the first case 10 is abutted against the second case 20, and the first case 10 and the second case 20 are screws. Connected by nails, rivets or glue.

第１のケース１０の突合わせ面１１であってその周縁部には、剛性突起５０Ｆが凸設されている。剛性突起５０Ｆは、突合わせ面１１の周縁部の全周にわたって形成されている。剛性突起５０Ｆと第１のケース１０は一体形成されたものである。この剛性突起５０Ｆの断面形状は台形状である。つまり、剛性突起５０Ｆの径方向内側の面５１Ｆが第１のケース１０の突合わせ面１１に対して垂直であり、径方向外側の面５２Ｆが突合わせ面１１に対して傾斜し、上面５３Ｆが突合わせ面１１と平行である。   Rigid protrusions 50F are provided on the butt surface 11 of the first case 10 at the peripheral edge thereof. The rigid protrusion 50 </ b> F is formed over the entire circumference of the peripheral edge of the abutting surface 11. The rigid protrusion 50F and the first case 10 are integrally formed. The cross-sectional shape of the rigid protrusion 50F is trapezoidal. That is, the radially inner surface 51F of the rigid protrusion 50F is perpendicular to the abutting surface 11 of the first case 10, the radially outer surface 52F is inclined with respect to the abutting surface 11, and the upper surface 53F is It is parallel to the butting surface 11.

図１２に示すように、剛性突起５０Ｆの径方向外側の面５２Ｆには、弾性突起３０Ｆが凸設されている。弾性突起３０Ｆは突合わせ面１１の周縁部の全周にわたって形成されており、弾性突起３０Ｆが剛性突起５０Ｆに沿っている。弾性突起３０Ｆの断面形状は四角形状である。弾性突起３０Ｆの底面３４Ｆが剛性突起５０Ｆの径方向外側の面５２Ｆに密着した面であり、弾性突起３０Ｆの径方向外側の面３２Ｆが第１のケース１０の突合わせ面１１に対して垂直であり、弾性突起３０Ｆの上面３３Ｆが突合わせ面１１に平行であり、弾性突起３０Ｆの径方向内側の面３１Ｆが剛性突起５０Ｆの上面５３Ｆ及び突合わせ面１１に対して傾斜している。そして、弾性突起３０Ｆは底面３４Ｆ側から上面３３Ｆ側に向かって先細りに設けられている。   As shown in FIG. 12, an elastic protrusion 30F is provided on the radially outer surface 52F of the rigid protrusion 50F. The elastic protrusion 30F is formed over the entire circumference of the peripheral portion of the abutting surface 11, and the elastic protrusion 30F is along the rigid protrusion 50F. The cross-sectional shape of the elastic protrusion 30F is a square shape. The bottom surface 34F of the elastic protrusion 30F is a surface in close contact with the radially outer surface 52F of the rigid protrusion 50F, and the radially outer surface 32F of the elastic protrusion 30F is perpendicular to the butting surface 11 of the first case 10. The upper surface 33F of the elastic protrusion 30F is parallel to the abutting surface 11, and the radially inner surface 31F of the elastic protrusion 30F is inclined with respect to the upper surface 53F of the rigid protrusion 50F and the abutting surface 11. The elastic protrusion 30F is tapered from the bottom surface 34F side to the top surface 33F side.

図１１に示すように、第１のケース１０と第２のケース２０が突き合わせられ、弾性突起３０Ｆが第２のケース２０の突合わせ面２１に圧接されている。   As shown in FIG. 11, the first case 10 and the second case 20 are abutted, and the elastic protrusion 30 </ b> F is in pressure contact with the abutting surface 21 of the second case 20.

本実施形態によれば、剛性突起５０Ｆの傾斜した面５２Ｆに弾性突起３０Ｆが設けられているので、水圧等によっても弾性突起３０Ｆが大変形せず、防水性・耐水性が高くなっている。また、第２のケース２０の突合わせ面２１に溝や突起を設けずとも済み、第２のケース２０がガラス等のように加工しにくい材質であっても、防水性・耐水性を得ることができる。また、弾性突起３０Ｆが先細りに設けられているので、弾性突起３０Ｆが更に圧縮されたときでも、弾性突起３０Ｆの逃げが確保される。   According to the present embodiment, since the elastic protrusion 30F is provided on the inclined surface 52F of the rigid protrusion 50F, the elastic protrusion 30F is not greatly deformed by water pressure or the like, and the waterproofness and water resistance are high. Further, it is not necessary to provide grooves or protrusions on the abutting surface 21 of the second case 20, and even if the second case 20 is made of a material that is difficult to process, such as glass, it is possible to obtain waterproofness and water resistance. Can do. Further, since the elastic protrusion 30F is provided to be tapered, even when the elastic protrusion 30F is further compressed, the escape of the elastic protrusion 30F is ensured.

なお、弾性突起３０Ｆの断面形状は四角形状に限るものではなく、例えば、図１３〜図１６に示すようにしてもよい。図１３〜図１６に示された弾性突起３０Ｇ〜３０Ｋは何れも断面三角形状をなしている。図１３の場合には、弾性突起３０Ｇの径方向外側の面３２Ｇが第１のケース１０の突合わせ面１１に対して垂直であり、径方向内側の面３１Ｇが剛性突起５０Ｆの上面５３Ｆに対して傾斜し、底面３４Ｇが剛性突起５０Ｆの径方向外側の面５２Ｆに密着し、弾性突起３０Ｇは底面３４Ｇ側から先端部３３Ｇに向かって先細りに設けられ、先端部３３Ｇが丸められている。図１４の場合には、弾性突起３０Ｈの径方向外側の面３２Ｈが第１のケース１０の突合わせ面１１に対して垂直であり、径方向内側の面３１Ｈが剛性突起５０Ｆの上面５３Ｆに対して傾斜し、底面３４Ｈが剛性突起５０Ｆの径方向外側の面５２Ｆに密着し、弾性突起３０Ｈは底面３４Ｈ側から先端部３３Ｇに向かって先細りに設けられ、先端部３３Ｈが鋭角をなしている。図１５の場合には、弾性突起３０Ｊの径方向外側の面３２Ｊが凹面とされ、径方向内側の面３１Ｊが剛性突起５０Ｆの上面５３Ｆに対して傾斜し、底面３４Ｊが剛性突起５０Ｆの径方向外側の面５２Ｆに密着し、弾性突起３０Ｊは底面３４Ｊ側から先端部３３Ｊに向かって先細りに設けられ、先端部３３Ｊが丸められている。図１６の場合には、弾性突起３０Ｋの径方向外側の面３２Ｋが凸面とされ、径方向内側の面３１Ｋが剛性突起５０Ｆの上面５３Ｆに対して傾斜し、底面３４Ｋが剛性突起５０Ｆの径方向外側の面５２Ｆに密着し、弾性突起３０Ｋは底面３４Ｋ側から先端部３３Ｋに向かって先細りに設けられ、先端部３３Ｋが丸められている。   In addition, the cross-sectional shape of the elastic protrusion 30F is not limited to a quadrangular shape, and may be as shown in FIGS. Each of the elastic protrusions 30G to 30K shown in FIGS. 13 to 16 has a triangular cross section. In the case of FIG. 13, the radially outer surface 32G of the elastic protrusion 30G is perpendicular to the abutting surface 11 of the first case 10, and the radially inner surface 31G is relative to the upper surface 53F of the rigid protrusion 50F. The bottom surface 34G is in close contact with the radially outer surface 52F of the rigid protrusion 50F, the elastic protrusion 30G is provided so as to taper from the bottom surface 34G toward the distal end portion 33G, and the distal end portion 33G is rounded. In the case of FIG. 14, the radially outer surface 32H of the elastic protrusion 30H is perpendicular to the abutting surface 11 of the first case 10, and the radially inner surface 31H is relative to the upper surface 53F of the rigid protrusion 50F. The bottom surface 34H is in close contact with the radially outer surface 52F of the rigid protrusion 50F, the elastic protrusion 30H is tapered from the bottom surface 34H side toward the distal end portion 33G, and the distal end portion 33H forms an acute angle. In the case of FIG. 15, the radially outer surface 32J of the elastic protrusion 30J is a concave surface, the radially inner surface 31J is inclined with respect to the upper surface 53F of the rigid protrusion 50F, and the bottom surface 34J is the radial direction of the rigid protrusion 50F. The elastic protrusion 30J is provided so as to taper from the bottom surface 34J toward the tip portion 33J, and the tip portion 33J is rounded. In the case of FIG. 16, the radially outer surface 32K of the elastic protrusion 30K is a convex surface, the radially inner surface 31K is inclined with respect to the upper surface 53F of the rigid protrusion 50F, and the bottom surface 34K is the radial direction of the rigid protrusion 50F. The elastic protrusion 30K is provided in close contact with the outer surface 52F, and is tapered from the bottom surface 34K toward the tip portion 33K, and the tip portion 33K is rounded.

図１１においては、突合わせ面２１に突起が形成されていないが、図１７に示すように、第１実施形態の場合と同様に、第２のケース２０の突合わせ面２１に剛性突起４０Ｆが凸設され、その剛性突起４０Ｆが弾性突起３０Ｆに沿っていてもよい。この剛性突起４０Ｆの断面形状は矩形状であるが、剛性突起４０Ｆの断面形状が第１実施形態における剛性突起４０又は剛性突起４０Ｄの断面形状と同一であってもよい。図１７では、剛性突起４０Ｆが、弾性突起３０Ｆの径方向内側に位置しているが、弾性突起３０Ｆの径方向外側に位置してもよい。剛性突起４０Ｆと剛性突起５０Ｆのうち一方が弾性突起３０Ｆの径方向内側に位置し、他方が弾性突起３０Ｆの径方向内側に位置してもよい。   In FIG. 11, no protrusion is formed on the abutting surface 21, but as shown in FIG. 17, as in the case of the first embodiment, the rigid protrusion 40 </ b> F is formed on the abutting surface 21 of the second case 20. It is provided with a protrusion, and the rigid protrusion 40F may be along the elastic protrusion 30F. The cross-sectional shape of the rigid protrusion 40F is rectangular, but the cross-sectional shape of the rigid protrusion 40F may be the same as the cross-sectional shape of the rigid protrusion 40 or the rigid protrusion 40D in the first embodiment. In FIG. 17, the rigid protrusion 40F is positioned on the radially inner side of the elastic protrusion 30F, but may be positioned on the radially outer side of the elastic protrusion 30F. One of the rigid protrusion 40F and the rigid protrusion 50F may be located on the radially inner side of the elastic protrusion 30F, and the other may be located on the radially inner side of the elastic protrusion 30F.

図１は、本発明の第１実施形態における電子機器の筐体を示した分解斜視図である。FIG. 1 is an exploded perspective view showing a housing of an electronic device according to the first embodiment of the present invention. 図２は、図１のII−II線に沿った切断面の矢視端面図である。FIG. 2 is an arrow end view of the cut surface along the line II-II in FIG. 1. 図３は、変形例において図２に対応する面の端面図である。FIG. 3 is an end view of a surface corresponding to FIG. 2 in the modified example. 図４は、変形例において図２に対応する面の端面図である。FIG. 4 is an end view of a surface corresponding to FIG. 2 in the modified example. 図５は、変形例において図２に対応する面の端面図である。FIG. 5 is an end view of a surface corresponding to FIG. 2 in the modified example. 図６は、図２に示された面において第２のケースを第１のケースに突き合わせた状態を示した端面図である。FIG. 6 is an end view showing a state in which the second case is abutted against the first case on the surface shown in FIG. 図７は、比較例を示した端面図である。FIG. 7 is an end view showing a comparative example. 図８は、変形例において図６に対応する面を示した端面図である。FIG. 8 is an end view showing a surface corresponding to FIG. 6 in the modification. 図９は、本発明の第２実施形態における電子機器の筐体の縁部分の切断面を示した端面図である。FIG. 9 is an end view showing a cut surface of the edge portion of the housing of the electronic device according to the second embodiment of the present invention. 図１０は、変形例において図９に対応する面の端面図である。FIG. 10 is an end view of a surface corresponding to FIG. 9 in the modified example. 図１１は、本発明の第３実施形態における電子機器の筐体の縁部分の切断面を示した端面図である。FIG. 11 is an end view showing a cut surface of the edge portion of the housing of the electronic device according to the third embodiment of the present invention. 図１２は、図１１に示された面において第２のケースを取り外した状態を示した端面図である。FIG. 12 is an end view showing a state in which the second case is removed from the surface shown in FIG. 図１３は、変形例において図１２に対応する面の端面図である。FIG. 13 is an end view of a surface corresponding to FIG. 12 in the modified example. 図１４は、変形例において図１２に対応する面の端面図である。FIG. 14 is an end view of a surface corresponding to FIG. 12 in the modified example. 図１５は、変形例において図１２に対応する面の端面図である。FIG. 15 is an end view of a surface corresponding to FIG. 12 in the modified example. 図１６は、変形例において図１２に対応する面の端面図である。FIG. 16 is an end view of a surface corresponding to FIG. 12 in the modified example. 図１７は、変形例において図１１に対応する面の端面図である。FIG. 17 is an end view of a surface corresponding to FIG. 11 in the modified example.

符号の説明Explanation of symbols

１ 筐体
１０ 第１のケース
１１ 突合わせ面
２０ 第２のケース
２１ 突合わせ面
３０、３０Ａ〜３０Ｈ、３０Ｊ〜３０Ｋ 弾性突起
４０、４０Ｄ、４０Ｅ、４０Ｆ 剛性突起
５０、５０Ｅ、５０Ｆ 剛性突起 DESCRIPTION OF SYMBOLS 1 Housing | casing 10 1st case 11 Butting surface 20 2nd case 21 Butting surface 30, 30A-30H, 30J-30K Elastic protrusion 40, 40D, 40E, 40F Rigid protrusion 50, 50E, 50F Rigid protrusion

Claims (4)

第１のケースと、
前記第１のケースに突き合わせられた第２のケースと、
前記第１のケースの突合わせ面に凸設されるとともに、その突合わせ面に対して傾斜した斜面を有する剛性突起と、
前記斜面に凸設され、前記剛性突起に沿うよう設けられ、前記第２のケースの突合わせ面に圧接された弾性突起と、を備え、
前記弾性突起は、前記斜面に密着して配置される底面から前記第２のケースの突合わせ面に圧接された先端部に向かって先細りに設けられていることを特徴とする電子機器の筐体。 The first case,
A second case butted against the first case;
A rigid protrusion having a slope inclined with respect to the abutting surface, which is provided on the abutting surface of the first case;
An elastic protrusion that is provided on the inclined surface, is provided along the rigid protrusion, and is pressed against the butting surface of the second case,
The casing of the electronic device, wherein the elastic protrusion is provided so as to taper from a bottom surface arranged in close contact with the inclined surface toward a tip portion pressed against the butting surface of the second case. . 前記第２のケースの突合わせ面に凸設され、前記弾性突起に沿うよう設けられた第２の剛性突起を更に備えることを特徴とする請求項１に記載の電子機器の筐体。 2. The electronic device casing according to claim 1 , further comprising a second rigid protrusion that is provided on the butting surface of the second case so as to extend along the elastic protrusion. 一対の部材の突合わせ部分の防水構造において、
一方の部材の突合わせ面に凸設されるとともに、その突合わせ面に対して傾斜した斜面を有する剛性突起と、
前記斜面に凸設され、前記剛性突起に沿うよう設けられ、他方の部材の突合わせ面に圧接された弾性突起と、を備え、
前記弾性突起は、前記斜面に密着して配置される底面から前記他方の部材の突合わせ面に圧接された先端部に向かって先細りに設けられていることを特徴とする防水構造。 In the waterproof structure of the butted portion of the pair of members,
A rigid protrusion having a slope inclined with respect to the abutting surface, which is convexly provided on the abutting surface of one member;
An elastic protrusion that is provided on the slope, is provided along the rigid protrusion, and is pressed against the butting surface of the other member;
The waterproof structure is characterized in that the elastic protrusion is provided so as to taper from a bottom surface arranged in close contact with the inclined surface toward a tip portion pressed against the butting surface of the other member. 前記他方の部材の突合わせ面に凸設され、前記弾性突起に沿うよう設けられた第２の剛性突起を更に備えることを特徴とする請求項３に記載の防水構造。 4. The waterproof structure according to claim 3 , further comprising a second rigid protrusion that is provided so as to protrude from the abutting surface of the other member and that extends along the elastic protrusion.
JP2007260884A 2007-10-04 2007-10-04 Waterproof structure and housing of electronic equipment Expired - Fee Related JP4930850B2 (en)

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JP5277143B2 (en) * 2009-11-25 2013-08-28 東芝テック株式会社 Electronics
JP2011175097A (en) * 2010-02-24 2011-09-08 Olympus Corp Waterproof equipment
KR101590688B1 (en) * 2011-06-10 2016-02-01 후지쯔 가부시끼가이샤 Portable electronic device, and waterproof cover
US20140206420A1 (en) * 2011-08-22 2014-07-24 Nec Casio Mobile Communications, Ltd. Waterproof structure and waterproofing method for mobile terminal device
JP5700450B2 (en) * 2011-10-12 2015-04-15 信越ポリマー株式会社 Waterproof structure of casing and electronic device including the same
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JP2014107340A (en) * 2012-11-26 2014-06-09 Toyota Motor Corp Waterproof seal structure for case
JP7521206B2 (en) 2019-03-20 2024-07-24 株式会社リコー Dustproof member, imaging module, and imaging device

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