JP5907541B2 - Seal structure and electronic device including the seal structure - Google Patents

Seal structure and electronic device including the seal structure Download PDF

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JP5907541B2
JP5907541B2 JP2014117025A JP2014117025A JP5907541B2 JP 5907541 B2 JP5907541 B2 JP 5907541B2 JP 2014117025 A JP2014117025 A JP 2014117025A JP 2014117025 A JP2014117025 A JP 2014117025A JP 5907541 B2 JP5907541 B2 JP 5907541B2
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recess
housing
seal member
seal
vertical direction
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JP2015230063A (en
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浩巳 畠山
浩巳 畠山
佐々木　孝
孝 佐々木
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Tanita Corp
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本発明は、シール構造及び該シール構造を備える電子機器に関する。   The present invention relates to a seal structure and an electronic apparatus including the seal structure.

従来、防水構造を有する電子機器では、防水構造とするために互いに嵌合することで筐体を構成する部材同士の間や筐体と蓋部材との間に、Ｏリングなどのパッキンが設けられている。   2. Description of the Related Art Conventionally, in an electronic device having a waterproof structure, packing such as an O-ring is provided between members constituting a casing or between a casing and a lid member by fitting with each other to form a waterproof structure. ing.

例えば、特許文献１には、携帯無線機の防水構造が開示されている、この防水構造では、その頂点が中心から外側にずれた位置に配置されるよう形成された三角形状のパッキンを電池パックに設けている。このようなパッキンを設けることで、電池パックを無線機本体に取り付ける際に、無線機本体に対して同一方向に倒れるようにパッキンを潰すことができ、安定した防水特性を得ることができる。   For example, Patent Document 1 discloses a waterproof structure for a portable wireless device. In this waterproof structure, a battery pack includes a triangular packing formed such that its apex is shifted to the outside from the center. Provided. By providing such a packing, when attaching the battery pack to the radio device main body, the packing can be crushed so as to fall in the same direction with respect to the radio device main body, and a stable waterproof characteristic can be obtained.

特開２０１１−１１４３６５JP2011-114365A

しかしながら、特許文献１のような構造では、三角形状をなすパッキンが同一方向に倒れるように潰されることで、無線機本体の面に対して面接触となる。そして、パッキンのようなシール部材が接触面積の大きい状態でシール性を確保していると、無線機本体の面のような接触対象となる部材の面の平面度が低下することで密着度も低下し、シール性を確保することが難しい。具体的には、面接触とすることでシール性を確保している装置が、長期間に渡って高温高湿の環境下に曝されると、無線機本体のようなパッキンを押し付けられる側の材料に変形が生じて平面度が低下し、無線機本体に対して均一な面圧となるようにパッキンを押し潰すことができないおそれがある。その結果、パッキンのようなシール部材と相手部材との間の密着度が低下し、シール性が低下する恐れがある。   However, in a structure like patent document 1, it will be in surface contact with the surface of a radio | wireless machine main body by being crushed so that the packing which makes triangular shape may fall down in the same direction. And if a sealing member such as packing secures sealing performance in a state where the contact area is large, the flatness of the surface of the member to be contacted such as the surface of the wireless device main body is reduced, so that the degree of adhesion is also reduced. It is difficult to secure the sealing performance. Specifically, when a device that ensures sealing performance by surface contact is exposed to a high-temperature and high-humidity environment for a long period of time, the side on which the packing such as the radio main body is pressed can be applied. There is a possibility that the material may be deformed and the flatness is lowered, and the packing cannot be crushed so as to have a uniform surface pressure with respect to the wireless device main body. As a result, the degree of adhesion between the sealing member such as packing and the mating member is lowered, and the sealing performance may be lowered.

本発明は、上記課題を解決するためになされたものであって、安定したシール性を確保することが可能なシール構造及び該シール構造を備えた電子機器を提供するものである。   The present invention has been made in order to solve the above-described problems, and provides a seal structure capable of ensuring stable sealing performance and an electronic apparatus including the seal structure.

上記課題を解決するために、本発明は以下の手段を提案している。
本発明の第一の態様におけるシール構造は、第一部材と第二部材とを互いに組み付けて形成される筐体において、前記第一部材と前記第二部材との間を液密に閉塞するシール構造であって、前記第一部材と前記第二部材との間に配置され、弾性変形可能なシール部材を備え、前記シール部材は、前記第一部材または前記第二部材の少なくとも一方に形成される凹部に、頂点が接触するよう突出する突起部を有し、前記第一部材は、凸部が形成される第一面を有し、前記第二部材は、前記第一面と対向し、前記凹部が形成される第二面を有し、前記シール部材は、前記凸部を覆うガイド部を有し、前記突起部は、前記凸部及び前記凹部に向かってそれぞれ突出する。 In order to solve the above problems, the present invention proposes the following means.
A seal structure according to a first aspect of the present invention is a seal that liquid-tightly seals between the first member and the second member in a housing formed by assembling the first member and the second member together. It is a structure, It is arrange | positioned between said 1st member and said 2nd member, and is provided with the elastically deformable seal member, and said seal member is formed in at least one of said 1st member or said 2nd member The first member has a first surface on which a convex portion is formed, the second member is opposed to the first surface, It has the 2nd surface in which the above-mentioned crevice is formed, the above-mentioned seal member has a guide part which covers the above-mentioned convex part, and the above-mentioned projection part projects towards the above-mentioned convex part and the above-mentioned crevice, respectively.

このような構成によれば、第一部材と第二部材とが組み付けられた際に、突起部の頂点が凹部に接触して押し潰されることで、シール部材を第一部材や第二部材に対して局所的に密着させることができる。即ち、突起部の頂点から第一面や第二面よりも凹んだ凹部に対して押し潰して点接触させることができる。そして、突起部を頂点で点接触させて押し潰すことで、第一部材や第二部材に対してシール部材が接触する面積を小さくして、局所的に面圧を高めることができる。その結果、第一部材や第二部材が変形するなどして位置がずれた場合であっても、シール部材の突起部と凹部との密着度を確保することができる。これにより、第一部材や第二部材が変形し、第一面と第二面との間の隙間の大きさに変化が生じても、安定したシール性を確保することができる。   According to such a configuration, when the first member and the second member are assembled, the apex of the projecting portion comes into contact with the concave portion and is crushed so that the sealing member becomes the first member or the second member. On the other hand, it can be locally adhered. That is, it is possible to make a point contact by crushing from the apex of the protrusion to the recess recessed from the first surface or the second surface. Then, by making the protrusions point-contact at the apex and crushing, the area where the seal member contacts the first member and the second member can be reduced, and the surface pressure can be locally increased. As a result, even when the first member or the second member is deformed or the like is displaced, the degree of adhesion between the protruding portion and the recessed portion of the seal member can be ensured. Thereby, even if a 1st member and a 2nd member deform | transform and a change arises in the magnitude | size of the clearance gap between a 1st surface and a 2nd surface, the stable sealing performance can be ensured.

また、上記シール構造では、前記第一部材は、前記凹部の外で前記組み付け方向に沿って延びる案内面を有し、前記シール部材は、前記案内面に沿って配置されるガイド部を有していてもよい。 Further, in the above seal structure, the first member has a guide surface extending along the direction of assembly the outside of the recess, the sealing member may have a guide portion that is disposed along the guide surface It may be.

このような構成によれば、突起部を覆うようにガイド部が形成されることで、凸部に対してシール部材の位置を容易に定めることができる。そのため、突起部を凸部に対して高い精度で点接触させることができる。即ち、シール部材がずれたり傾いたりしてしまうことを防止して、凸部に対して突起部の姿勢を維持して接触させることができる。また、凹部に対する突起部の位置も定めることができ、凹部に対して高い精度で突起部を点接触させることができる。したがって、第一面と第二面とが対向する対向方向の両側でシール部材の突起部をそれぞれ高い精度で点接触させることができる。したがって、第一面と第二面との間の隙間の大きさに変化が生じても、より安定したシール性を確保することができる。   According to such a structure, a guide part is formed so that a projection part may be covered, and the position of a sealing member can be easily defined with respect to a convex part. Therefore, the protrusion can be brought into point contact with the convex portion with high accuracy. That is, it is possible to prevent the seal member from being displaced or tilted, and to contact the convex portion while maintaining the posture of the protruding portion. In addition, the position of the protrusion relative to the recess can be determined, and the protrusion can be brought into point contact with the recess with high accuracy. Therefore, the protruding portions of the seal member can be brought into point contact with high accuracy on both sides in the facing direction where the first surface and the second surface face each other. Therefore, even if a change occurs in the size of the gap between the first surface and the second surface, more stable sealing performance can be ensured.

また、上記シール構造では、第一部材と第二部材とを互いに組み付けて形成される筐体において、前記第一部材と前記第二部材との間を液密に閉塞するシール構造であって、前記第一部材と前記第二部材との間に配置され、弾性変形可能なシール部材を備え、前記第一部材および前記第二部材の少なくとも一方は、前記組み付け方向に向けられた凹部を有し、前記第一部材は、前記凹部の外で前記組み付け方向に沿って延びる案内面を有し、前記シール部材は、前記案内面に沿って配置されるガイド部と、前記凹部に頂点が接触するように突出する突起部とを有し、前記第一部材は、前記案内面を有する規制凹部が形成され、前記規制凹部から前記組み付け方向と交差する方向にずれた位置に第一面を有し、前記第二部材は、前記第一面と対向し、前記凹部が形成される第二面を有し、前記ガイド部は、前記規制凹部に挿入され、前記突起部は、前記第一面に形成される前記凹部及び前記第二面に形成される前記凹部向かってそれぞれ突出していてもよい。
Further, in the above sealing structure, in a housing formed by assembling the first member and the second member, the sealing structure that liquid-tightly closes the space between the first member and the second member, An elastically deformable seal member is provided between the first member and the second member, and at least one of the first member and the second member has a recess directed in the assembly direction. The first member has a guide surface extending along the assembling direction outside the recess, and the seal member has a guide portion arranged along the guide surface and a vertex in contact with the recess. And the first member has a first surface at a position shifted from the restriction recess in a direction intersecting the assembly direction. The second member is paired with the first surface. And the guide portion is inserted into the restricting recess, and the protrusion is formed on the recess and the second surface formed on the first surface. Each may protrude toward the recess.

このような構成によれば、第一部材と第二部材とが組み付けられた際に、突起部の頂点が第一面に形成された凹部や第二面に形成された凹部に接触して押し潰されることで、シール部材を第一部材や第二部材に局所的に密着させることができる。特に、第一面や第二面から突出しているのではなく、窪んで形成される凹部に突起部の頂点を接触させることで、第一面や第二面によってシール部材自体を安定して支持した状態で、局所的に面圧を高めることができる。したがって、第一部材や第二部材が変形するなどして位置がずれた場合であっても、局所的に面圧が高い状態を維持でき、第一部材や第二部材に対するシール部材の密着度をより高い精度で確保することができる。   According to such a configuration, when the first member and the second member are assembled, the apex of the protruding portion contacts and pushes the concave portion formed on the first surface or the concave portion formed on the second surface. By being crushed, the seal member can be brought into close contact with the first member or the second member locally. In particular, the seal member itself is stably supported by the first surface and the second surface by contacting the apex of the protrusion with the concave portion formed in a recess rather than protruding from the first surface or the second surface. In this state, the surface pressure can be locally increased. Therefore, even when the first member or the second member is deformed and the position is shifted, the state where the surface pressure is locally high can be maintained, and the degree of adhesion of the seal member to the first member or the second member Can be ensured with higher accuracy.

また、上記シール構造では、前記シール部材は、前記第一面及び前記第二面に当接するよう形成されるシール部材本体と、前記第一部材と前記第二部材とが組み付けられた際に、前記第一部材の外周部の端面と前記第二部材の外周部の端面とを覆うように形成される傘部を有してもよい。 In the seal structure, when the seal member is assembled with the seal member main body formed so as to contact the first surface and the second surface, and the first member and the second member, You may have the umbrella part formed so that the end surface of the outer peripheral part of said 1st member and the end surface of the outer peripheral part of said 2nd member may be covered.

このような構成によれば、第一部材に対して第二部材が組み付けられた際に、突起部が挿入部から対向方向と直交する方向に突出して、凹部に向かって接触して押し潰されることで、シール部材を凹部に対して局所的に密着させることができる。したがって、凹部内に挿入された挿入部の移動を規制することができる。また、凹部に対して突起部を介してシール部材を密着させることができ、凹部と挿入部との間の空間を液密に閉塞することができる。これにより、シール部材が第一部材から脱落すること防止しつつ、第一部材と第二部材との間の空間に対して、安定したシール性を確保することができる。   According to such a configuration, when the second member is assembled to the first member, the protruding portion protrudes from the insertion portion in a direction orthogonal to the facing direction, and contacts and is crushed toward the concave portion. Thereby, a sealing member can be stuck closely to a crevice. Therefore, the movement of the insertion portion inserted into the recess can be restricted. In addition, the sealing member can be brought into close contact with the concave portion via the protrusion, and the space between the concave portion and the insertion portion can be liquid-tightly closed. Thereby, the stable sealing performance can be ensured with respect to the space between the first member and the second member while preventing the seal member from falling off the first member.

また、本発明の第二の態様における電子機器は、前記シール構造を備える。   Moreover, the electronic device in the 2nd aspect of this invention is equipped with the said seal structure.

このような構成によれば、電子機器の内部に水等の液体が進入してしまうことを高い精度で防止することができる。そのため、信頼性の高い電子機器を提供することができる。   According to such a structure, it can prevent with high precision that liquids, such as water, approach into the inside of an electronic device. Therefore, a highly reliable electronic device can be provided.

本発明によれば、シール部材の突起部の頂点が第一部材または第二部材に形成される凹部に接触することで、安定したシール性を確保することができる。   According to the present invention, a stable sealing property can be ensured by the apex of the protrusion of the seal member coming into contact with the recess formed in the first member or the second member.

本発明の各実施形態における秤の斜視図である。It is a perspective view of the balance in each embodiment of the present invention. 本発明の図１における秤のＩＩ−ＩＩ断面図である。It is II-II sectional drawing of the balance in FIG. 1 of this invention. 本発明の第一実施形態におけるシール構造を説明する要部断面図であって、同図（ａ）は嵌合前のシール構造を示す図２のＡ部の要部断面図であり、同図（ｂ）は嵌合後のシール構造を示す図２のＡ部の要部断面図である。It is principal part sectional drawing explaining the seal structure in 1st embodiment of this invention, Comprising: The figure (a) is principal part sectional drawing of the A section of FIG. 2 which shows the seal structure before a fitting, (B) is principal part sectional drawing of the A section of FIG. 2 which shows the seal structure after a fitting. 本発明の第二実施形態におけるシール構造を説明する要部断面図であって、同図（ａ）は嵌合前のシール構造を示す図２のＡ部に対応する要部断面図であり、同図（ｂ）は嵌合後のシール構造を示す図２のＡ部に対応する要部断面図である。It is principal part sectional drawing explaining the seal structure in 2nd embodiment of this invention, Comprising: The same figure (a) is principal part sectional drawing corresponding to the A section of FIG. 2 which shows the seal structure before fitting, FIG. 4B is a cross-sectional view of the main part corresponding to the part A of FIG. 2 showing the seal structure after fitting. 本発明の第三実施形態における秤の底面視図である。It is a bottom view of the balance in 3rd embodiment of this invention. 本発明の図５における秤のＶＩ−ＶＩ断面図である。It is VI-VI sectional drawing of the balance in FIG. 5 of this invention. 本発明の第三実施形態におけるシール構造を説明する要部断面図であって、同図（ａ）は嵌合前のシール構造を示す図６のＢ部の要部断面図であり、同図（ｂ）は嵌合後のシール構造を示す図６のＢ部の要部断面図である。It is principal part sectional drawing explaining the seal structure in 3rd embodiment of this invention, Comprising: The same figure (a) is principal part sectional drawing of the B section of FIG. 6 which shows the seal structure before a fitting, (B) is principal part sectional drawing of the B section of FIG. 6 which shows the seal structure after a fitting.

《第一実施形態》
以下、本発明に係る第一実施形態について図１から図３を参照して説明する。
本発明の実施形態に係るシール構造７を備えた電子機器について説明する。
図１に示すように、本実施形態の電子機器は被測定物の重量を測定するデジタル式の秤（電子機器）１である。本実施形態の秤１は、被測定物を載置する計量皿２と、計量皿２に作用する力を測定する秤本体３とを備える。本実施形態では、秤１は、水平面上に載置され、鉛直方向の上方に計量皿２が配置されるよう設置されている。
以下、秤１の構成を説明する場合、特に断らない限りは、秤１が水平面上に載置された状態での位置関係に基づいて説明する。 << first embodiment >>
Hereinafter, a first embodiment according to the present invention will be described with reference to FIGS. 1 to 3.
An electronic apparatus including the seal structure 7 according to the embodiment of the present invention will be described.
As shown in FIG. 1, the electronic apparatus of this embodiment is a digital scale (electronic apparatus) 1 that measures the weight of an object to be measured. The scale 1 of the present embodiment includes a weighing pan 2 on which an object to be measured is placed, and a balance body 3 that measures a force acting on the weighing pan 2. In this embodiment, the scale 1 is placed on a horizontal plane, and is installed so that the weighing pan 2 is disposed above the vertical direction.
Hereinafter, when the configuration of the balance 1 is described, the description will be based on the positional relationship in a state where the balance 1 is placed on a horizontal plane unless otherwise specified.

計量皿２は、図２に示すように、被測定物を載置する上皿２１と、上皿２１が載置される計量皿本体２２と、計量皿本体２２を秤本体３に接続する計量皿固定部２３とを有する。   As shown in FIG. 2, the weighing pan 2 has an upper plate 21 on which an object to be measured is placed, a weighing pan main body 22 on which the upper plate 21 is placed, and a weighing unit that connects the weighing pan main body 22 to the scale main body 3. A dish fixing portion 23.

上皿２１は、矩形箱状をなしており、開口を計量皿本体２２に向けて計量皿本体２２を覆うように配置される。
計量皿本体２２は、計量皿固定部２３の中心部に螺合された不図示の固定ねじにより、計量皿固定部２３と一体に固定されている。
計量皿固定部２３は、秤本体３の内部に接続されおり、後述する秤本体３の内部の計量皿支持体６１に対して上皿２１に載せられた被測定物の荷重を伝達する。 The upper plate 21 has a rectangular box shape, and is arranged so as to cover the weighing plate body 22 with the opening directed toward the weighing plate body 22.
The weighing pan main body 22 is fixed integrally with the weighing pan fixing portion 23 by a fixing screw (not shown) screwed into the central portion of the weighing pan fixing portion 23.
The weighing pan fixing unit 23 is connected to the inside of the scale body 3 and transmits the load of the object to be measured placed on the upper plate 21 to a weighing dish support 61 inside the scale body 3 described later.

秤本体３は、第一筐体（第一部材）４と、第一筐体４に対して組み付けられる第二筐体５（第二部材）と、第一筐体４及び第二筐体５を互いに組み付けて形成される箱状体の筐体の内部に配置される重量センサであるロードセル６と、第一筐体４と第二筐体５と間を液密に閉塞するシール構造７と、を備える。ここで、本実施形態では、図２のおける紙面上下方向を鉛直方向、紙面左右方向を水平方向とする。また、第一筐体４及び第二筐体５を互いに組み付けて形成される筐体の内部側を内側とし、外部側を外側とする。   The scale body 3 includes a first housing (first member) 4, a second housing 5 (second member) assembled to the first housing 4, the first housing 4 and the second housing 5. A load cell 6 that is a weight sensor disposed inside a box-shaped housing formed by assembling the two, and a seal structure 7 that tightly seals between the first housing 4 and the second housing 5. . Here, in the present embodiment, the vertical direction on the paper surface in FIG. 2 is the vertical direction, and the horizontal direction on the paper surface is the horizontal direction. Moreover, let the inner side of the housing | casing formed by mutually assembling the 1st housing | casing 4 and the 2nd housing | casing 5 be an inner side, and let the outer side be an outer side.

第一筐体４は、本実施形態における第一部材であり、鉛直方向の下方（図２紙面下側）に開口する略箱状の部材である。第一筐体４は、秤本体３の上半の外装を形成している。具体的には、第一筐体４は、計量皿２の下方において計量皿２と対向する平面視矩形状の天面部４１と、天面部４１の外縁の一辺から外側に向かって斜め下方に延びる前面部４２と、天面部４１及び前面部４２の外縁から鉛直方向の下方に延びる第一外周部４３とを備える。   The 1st housing | casing 4 is a 1st member in this embodiment, and is a substantially box-shaped member opened to the downward (vertical side of FIG. 2 paper) of a perpendicular direction. The first housing 4 forms an outer half of the upper half of the scale body 3. Specifically, the first housing 4 extends downward in a diagonally downward direction from one side of the outer edge of the top surface 41 and a rectangular top surface 41 facing the weighing pan 2 below the weighing pan 2. The front part 42 and the 1st outer peripheral part 43 extended in the perpendicular direction downward from the outer edge of the top | upper surface part 41 and the front part 42 are provided.

天面部４１には、矩形板状に形成される。天面部４１は、後述する計量皿支持体６１を外部に挿通させるため、板厚方向の外部に貫通された貫通孔が設けられている。
前面部４２は、矩形板状をなす天面部４１の一辺から、鉛直方向の下方かつ筐体の外側に向かって傾斜して一体的に形成される。前面部４２には、計量結果を表示する表示部４２ａや操作ボタン４２ｂが配置されている。 The top surface portion 41 is formed in a rectangular plate shape. The top surface portion 41 is provided with a through-hole penetrating to the outside in the thickness direction in order to allow a weighing pan support 61 described later to be inserted outside.
The front surface portion 42 is integrally formed by being inclined from one side of the top surface portion 41 having a rectangular plate shape downward in the vertical direction and toward the outside of the housing. A display unit 42a and operation buttons 42b for displaying measurement results are arranged on the front unit 42.

第一外周部４３は、天面部４１及び前面部４２の外縁から全周にわたって鉛直方向の下方に向かって形成される。本実施形態の第一外周部４３は、外側を向く面が天面部４１及び前面部４２の外縁から鉛直方向の上方かつ筐体の外側を向くように傾斜して形成される傾斜壁部４３ａと、傾斜壁部４３ａの端部から鉛直方向の下方に向かって断面矩形状に延びる第一外周壁部４３ｂとを有する。   The first outer peripheral portion 43 is formed downward from the outer edges of the top surface portion 41 and the front surface portion 42 in the vertical direction over the entire circumference. The first outer peripheral portion 43 of the present embodiment includes an inclined wall portion 43a formed so as to be inclined so that a surface facing outward is directed vertically upward from the outer edges of the top surface portion 41 and the front surface portion 42 and toward the outside of the housing. And a first outer peripheral wall 43b extending in a rectangular cross section from the end of the inclined wall 43a downward in the vertical direction.

第二筐体５は、本実施形態における第二部材であり、鉛直方向の上方（図２紙面上側）に開口する略箱状の部材である。第二筐体５は、秤本体３の下半の外装を形成している。第二筐体５は、第一筐体４と組み合わされることで、秤本体３の外装である内部が中空の筐体を形成する。本実施形態の第二筐体５は、第一筐体４の天面部４１に対向する平面視略矩形状の底面部５１と、底面部５１の外縁の各辺から鉛直方向の上方に延びる第二外周部５２と、を備える。   The 2nd housing | casing 5 is a 2nd member in this embodiment, and is a substantially box-shaped member opened to the upper direction (FIG. 2 upper surface of a paper surface) of a perpendicular direction. The second housing 5 forms an outer package of the lower half of the scale body 3. The second housing 5 is combined with the first housing 4 to form a hollow housing that is the exterior of the scale body 3. The second housing 5 of the present embodiment includes a bottom surface portion 51 having a substantially rectangular shape in plan view facing the top surface portion 41 of the first housing 4, and a first portion extending upward in the vertical direction from each side of the outer edge of the bottom surface portion 51. Two outer peripheral portions 52.

底面部５１は、矩形板状に形成されている。底面部５１は、秤本体３を鉛直方向の下方から支えるために、例えば、ゴム足などからなる脚部５１ａが四隅に固定されている。
第二外周部５２は、底面部５１の外縁から全周にわたって鉛直方向の上方に向かって形成される。本実施形態の第二外周部５２は、底面部５１の外縁から断面矩形状をなして鉛直方向の上方に向かって延びる第二外周壁部５２ｂを有する。第二外周壁部５２ｂは、第一筐体４と第二筐体５とが組み合わされた際に、第一外周壁部４３ｂよりも水平方向の内側に配置されるよう形成される。 The bottom surface portion 51 is formed in a rectangular plate shape. In order to support the balance body 3 from below in the vertical direction, for example, leg portions 51a made of rubber feet or the like are fixed to the bottom surface 51 at four corners.
The second outer peripheral portion 52 is formed upward in the vertical direction from the outer edge of the bottom surface portion 51 over the entire periphery. The second outer peripheral portion 52 of the present embodiment has a second outer peripheral wall portion 52b that has a rectangular cross section from the outer edge of the bottom surface portion 51 and extends upward in the vertical direction. When the first casing 4 and the second casing 5 are combined, the second outer peripheral wall portion 52b is formed to be disposed on the inner side in the horizontal direction than the first outer peripheral wall portion 43b.

第一筐体４及び第二筐体５の材質は、特に限定されないが、本実施形態では、いずれも合成樹脂の成形品を採用している。   Although the material of the 1st housing | casing 4 and the 2nd housing | casing 5 is not specifically limited, In this embodiment, all employ | adopt the synthetic resin molded product.

ロードセル６は、上皿２１に載置された被測定物の荷重を伝達するため、天面部４１上の計量皿固定部２３の下面に固定された計量皿支持体６１が固定されている。
計量皿支持体６１は、秤本体３の内側から貫通孔に挿通され、天面部４１の上方に突出されている。 In the load cell 6, a weighing pan support 61 fixed to the lower surface of the weighing pan fixing portion 23 on the top surface portion 41 is fixed to transmit the load of the object to be measured placed on the upper plate 21.
The weighing pan support 61 is inserted into the through hole from the inside of the scale body 3 and protrudes above the top surface portion 41.

シール構造７は、第一外周部４３と第二外周部５２との間に弾性変形可能なシール部材７３を設けることで、第一筐体４と第二筐体５との間を液密に閉塞する。本実施形態のシール構造７は、第一筐体４の第一外周壁部４３ｂが第二筐体５の第二外周壁部５２ｂに対して水平方向の外側に重なるように組み付けられる構造に用いられる。具体的には、本実施形態のシール構造７は、図３（ａ）及び（ｂ）に示すように、第一外周部４３に形成されてシール部材７３が取り付けられる第一取付部７１と、第二外周部５２に形成されて第一取付部７１とともにシール部材７３を挟み込む第二取付部７２と、第一外周部４３と第二外周部５２との間に配置されるシール部材７３と、を備える。   The seal structure 7 provides a liquid-tight seal between the first casing 4 and the second casing 5 by providing an elastically deformable seal member 73 between the first outer peripheral portion 43 and the second outer peripheral portion 52. Block. The seal structure 7 of the present embodiment is used for a structure in which the first outer peripheral wall portion 43b of the first housing 4 is assembled so as to overlap the second outer peripheral wall portion 52b of the second housing 5 in the horizontal direction. It is done. Specifically, as shown in FIGS. 3A and 3B, the seal structure 7 of the present embodiment includes a first attachment portion 71 that is formed on the first outer peripheral portion 43 and to which the seal member 73 is attached. A second mounting portion 72 formed on the second outer peripheral portion 52 and sandwiching the seal member 73 together with the first mounting portion 71; a seal member 73 disposed between the first outer peripheral portion 43 and the second outer peripheral portion 52; Is provided.

第一取付部７１は、第一外周部４３の内側に全周にわたって形成されている。本実施形態の第一取付部７１は、傾斜壁部４３ａの内側を向く面から突出して第一面７１１ａが形成される第一取付部本体７１１と、第一面７１１ａから突出する凸部７１２とを有する。   The first attachment portion 71 is formed over the entire circumference inside the first outer peripheral portion 43. The first attachment portion 71 of the present embodiment includes a first attachment portion main body 711 that protrudes from the surface facing the inner side of the inclined wall portion 43a to form a first surface 711a, and a convex portion 712 that protrudes from the first surface 711a. Have

第一取付部本体７１１は、傾斜壁部４３ａの全周にわたって水平方向の内側に向かって突出して形成されている。第一取付部本体７１１は、鉛直方向の下方を向く水平面である第一面７１１ａが形成されるように、傾斜壁部４３ａの内側から突出している。   The first attachment portion main body 711 is formed to protrude inward in the horizontal direction over the entire circumference of the inclined wall portion 43a. The first attachment portion main body 711 protrudes from the inside of the inclined wall portion 43a so that a first surface 711a that is a horizontal surface facing downward in the vertical direction is formed.

凸部７１２は、第一面７１１ａから鉛直方向の下方に向かって、鉛直方向に長い断面矩形状をなして突出する。凸部７１２は、第一外周壁部４３ｂから水平方向の内側に離間して形成されている。即ち、凸部７１２は、全周にわたって断面矩形状のリブとして第一外周壁部４３ｂから離れて形成されている。   The convex portion 712 protrudes from the first surface 711a downward in the vertical direction so as to form a rectangular section that is long in the vertical direction. The convex portion 712 is formed to be separated from the first outer peripheral wall portion 43b inward in the horizontal direction. That is, the convex portion 712 is formed away from the first outer peripheral wall portion 43b as a rib having a rectangular cross section over the entire circumference.

第二取付部７２は、第二外周部５２の外側に全周にわたって形成されている。本実施形態の第二取付部７２は、第二外周壁部５２ｂの端部に形成されている。第二取付部７２は、外側に向かって第二外周壁部５２ｂの端部から突出して第二面７２１ａが形成される第二取付部本体７２１と、第二面７２１ａから窪む凹部７２２と、第二面７２１ａから突出する内側凸部７２３とを有する。   The second attachment portion 72 is formed on the entire outer periphery of the second outer peripheral portion 52. The second attachment portion 72 of the present embodiment is formed at the end of the second outer peripheral wall portion 52b. The second attachment portion 72 protrudes outward from the end portion of the second outer peripheral wall portion 52b, a second attachment portion main body 721 formed with a second surface 721a, a concave portion 722 recessed from the second surface 721a, And an inner convex portion 723 projecting from the second surface 721a.

第二取付部本体７２１は、第二外周壁部５２ｂの鉛直方向の上方の端部から断面矩形状をなして水平方向の外側に向かって突出する。第二取付部本体７２１は、鉛直方向の上方を向く水平面である第二面７２１ａが形成される。即ち、第二取付部本体７２１では、鉛直方向が第一面７１１ａと第二面７２１ａとが対向する対向方向となるよう形成されている。   The second attachment portion main body 721 protrudes outward in the horizontal direction from the upper end portion of the second outer peripheral wall portion 52b in the vertical direction to form a rectangular cross section. The second mounting portion main body 721 is formed with a second surface 721a that is a horizontal surface facing upward in the vertical direction. In other words, the second mounting portion main body 721 is formed so that the vertical direction is the facing direction in which the first surface 711a and the second surface 721a face each other.

凹部７２２は、断面矩形状をなして第二面７２１ａから鉛直方向の下方に向かって凹んで形成されている。本実施形態の凹部７２２は、水平方向における中心位置が凸部７１２と同じ位置となるように形成されている。   The recess 722 has a rectangular cross section and is recessed from the second surface 721a downward in the vertical direction. The concave portion 722 of the present embodiment is formed so that the center position in the horizontal direction is the same position as the convex portion 712.

内側凸部７２３は、第二面７２１ａから鉛直方向に長い断面矩形状をなして鉛直方向の上方に向かって突出する。内側凸部７２３は、第二筐体５が第一筐体４に組み付けられた際に、第一取付部７１の凸部７１２に対して水平方向の内側に離間して配置されるよう形成されている。   The inner convex portion 723 has a rectangular cross section which is long in the vertical direction from the second surface 721a and protrudes upward in the vertical direction. The inner convex portion 723 is formed so as to be spaced apart from the convex portion 712 of the first attachment portion 71 in the horizontal direction when the second housing 5 is assembled to the first housing 4. ing.

シール部材７３は、弾性変形可能な部材で構成されている。シール部材７３は、第一取付部７１と第二取付部７２との間に全周にわたって配置されるよう環状に形成されている。具体的には、本実施形態のシール部材７３は、食品を扱う部材等に使用されるゴム材であるシリコンゴムによって形成される。本実施形態のシール部材７３は、第二筐体５が第一筐体４に組み付けられた際に、第二面７２１ａに当接するよう形成されるシール部材本体７３１と、シール部材本体７３１から鉛直方向の上方及び下方に突出する突起部７３２と、突起部７３２を挟んでシール部材本体７３１から鉛直方向の上方に向かって突出するガイド部７３３とを有する。   The seal member 73 is configured by an elastically deformable member. The seal member 73 is formed in an annular shape so as to be disposed over the entire circumference between the first attachment portion 71 and the second attachment portion 72. Specifically, the seal member 73 of the present embodiment is formed of silicon rubber, which is a rubber material used for members that handle food. The seal member 73 of this embodiment includes a seal member main body 731 formed so as to abut on the second surface 721a when the second housing 5 is assembled to the first housing 4, and a vertical direction from the seal member main body 731. A protrusion 732 that protrudes upward and downward in the direction, and a guide portion 733 that protrudes upward in the vertical direction from the seal member main body 731 across the protrusion 732.

シール部材本体７３１は、第一面７１１ａと第二面７２１ａとが対向する方向と直交する方向に延びて形成されている。本実施形態のシール部材本体７３１は、水平方向に延びた断面矩形状に形成される。シール部材本体７３１は、第二筐体５が第一筐体４に組み付けられた際に、鉛直方向の下方の面が第二面７２１ａに当接するよう形成されている。   The seal member main body 731 is formed to extend in a direction orthogonal to the direction in which the first surface 711a and the second surface 721a face each other. The seal member body 731 of this embodiment is formed in a rectangular cross section extending in the horizontal direction. The seal member main body 731 is formed so that the lower surface in the vertical direction comes into contact with the second surface 721a when the second housing 5 is assembled to the first housing 4.

突起部７３２は、シール部材本体７３１の鉛直方向の上方及び下方を向く面からそれぞれ突出する。突起部７３２は、断面形状において水平方向の内側を向く面と外側を向く面とが互いに傾斜して交差するような交差稜線をなしている。即ち、突起部７３２は、先端に向かうにしたがって縮径して頂点を形成している。突起部７３２は、先端である頂点が凸部７１２や凹部７２２に接触する位置に形成される。具体的には、本実施形態の突起部７３２は、シール部材本体７３１の鉛直方向の上方を向く面から断面三角形状をなして突出する上面突起部７３２ａと、シール部材本体７３１の鉛直方向の下方を向く面から断面三角形状をなして突出する下面突起部７３２ｂとを有する。   The protrusions 732 protrude from the surfaces of the seal member main body 731 facing upward and downward in the vertical direction. The projecting portion 732 forms an intersecting ridge line such that the surface facing inward in the horizontal direction and the surface facing outward in the cross-sectional shape intersect with each other while being inclined. That is, the protruding portion 732 has a diameter reduced toward the tip to form a vertex. The protrusion 732 is formed at a position where the apex as the tip contacts the convex part 712 or the concave part 722. Specifically, the protrusion 732 according to the present embodiment includes an upper surface protrusion 732 a that protrudes in a triangular shape from a surface facing upward in the vertical direction of the seal member main body 731, and a lower vertical direction of the seal member main body 731. And a lower surface protrusion 732b protruding in a triangular shape from the surface facing the surface.

上面突起部７３２ａは、第二筐体５が第一筐体４に組み付けられた際に、断面三角形状の頂点が凸部７１２の鉛直方向の下方を向く面の水平方向の中心位置と接触するよう形成される。
下面突起部７３２ｂは、第二筐体５が第一筐体４に組み付けられた際に、断面三角形状の頂点が凹部７２２の鉛直方向の上方を向く面の水平方向の中心位置と接触するよう形成される。
即ち、本実施形態の上面突起部７３２ａと下面突起部７３２ｂとは、頂点を通過してシール部材本体７３１の鉛直方向の上方や下方を向く面と垂直な仮想中心線が一致するよう形成されている。 When the second housing 5 is assembled to the first housing 4, the upper surface protrusion 732 a comes into contact with the horizontal center position of the surface in which the apex of the triangular cross section faces downward in the vertical direction of the convex portion 712. Formed.
When the second housing 5 is assembled to the first housing 4, the lower surface protruding portion 732 b comes into contact with the horizontal center position of the surface of the concave portion 722 with the apex of the concave portion 722 facing upward in the vertical direction. It is formed.
That is, the upper surface protrusion 732a and the lower surface protrusion 732b of the present embodiment are formed so that the virtual center line perpendicular to the surface of the seal member main body 731 that faces upward or downward in the vertical direction is aligned. Yes.

ガイド部７３３は、第二筐体５が第一筐体４に組み付けられた際に、凸部７１２を挟み込むように形成される。本実施形態のガイド部７３３は、シール部材本体７３１の水平方向の両端から鉛直方向の上方に向かってそれぞれ突出する。本実施形態のガイド部７３３は、シール部材本体７３１の水平方向の外側の端部に形成される外側ガイド部７３３ａと、シール部本体の水平方向の内側の端部に形成される内側ガイド部７３３ｂとを有する。   The guide portion 733 is formed so as to sandwich the convex portion 712 when the second housing 5 is assembled to the first housing 4. The guide portions 733 of the present embodiment protrude from the both ends in the horizontal direction of the seal member main body 731 upward in the vertical direction. The guide portion 733 of the present embodiment includes an outer guide portion 733a formed at the outer end portion in the horizontal direction of the seal member main body 731 and an inner guide portion 733b formed at the inner end portion in the horizontal direction of the seal portion main body. And have.

外側ガイド部７３３ａは、上面突起部７３２ａの水平方向の外側の端部から断面矩形状をなして鉛直方向の上方に向かって突出する。外側ガイド部７３３ａは、第二筐体５が第一筐体４に組み付けられた際に、第一外周壁部４３ｂと凸部７１２との間に配置されるよう形成されている。
内側ガイド部７３３ｂは、上面突起部７３２ａの水平方向の内側の端部から断面矩形状をなして鉛直方向の上方に向かって突出する。内側ガイド部７３３ｂは、第二筐体５が第一筐体４に組み付けられた際に、凸部７１２と内側凸部７２３の間に配置されるよう形成される。 The outer guide portion 733a protrudes upward in the vertical direction with a rectangular cross-section from the horizontal outer end of the upper surface protrusion 732a. The outer guide portion 733 a is formed so as to be disposed between the first outer peripheral wall portion 43 b and the convex portion 712 when the second housing 5 is assembled to the first housing 4.
The inner guide portion 733b protrudes upward in the vertical direction from the horizontal inner end of the upper surface protrusion 732a in a rectangular cross section. The inner guide portion 733 b is formed so as to be disposed between the convex portion 712 and the inner convex portion 723 when the second housing 5 is assembled to the first housing 4.

次に、上記第一実施形態のシール構造７の作用について説明する。
第一実施形態のシール構造７によれば、図３（ａ）に示すように、第一筐体４に形成される第一取付部７１と第二筐体５に形成される第二取付部７２との間にシール部材７３が配置された状態で、第一筐体４と第二筐体５とが組み付けられる。具体的には、第一外周壁部４３ｂの凸部７１２に対して、外側ガイド部７３３ａと内側ガイド部７３３ｂとによって挟み込むようにシール部材７３を挿入する。そして、第一筐体４をシール部材７３とともに、第二筐体５に対して鉛直方向の上方から被せるように組み付ける。第一筐体４と第二筐体５とが組み付けられると、図３（ｂ）に示すように、シール部材７３の外側ガイド部７３３ａが第一外周壁部４３ｂと凸部７１２との間に挿入されつつ、内側ガイド部７３３ｂが凸部７１２と内側凸部７２３との間に配置される。その後、第一外周壁部４３ｂが第二外周壁部５２ｂの端部に形成された第二取付部７２を水平方向の外側から覆う位置まで移動することで、第一筐体４と第二筐体５とが完全に組み付けられる。第一筐体４と第二筐体５とが完全に組み付けられると、上面突起部７３２ａの頂点が凸部７１２の下方を向く面の水平方向の中心位置に接触しつつ、下面突起部７３２ｂの頂点が凹部７２２の上面を向く面の水平方向の中心位置に接触した状態で、上面突起部７３２ａ及び下面突起部７３２ｂが鉛直方向に押し潰される。そして、シール部材７３は、シール部材本体７３１の鉛直方向の下方を向く面が第二面７２１ａに接する位置に配置される。その結果、第一筐体４と第二筐体５との間がシール部材７３によって隙間なく閉塞されている。 Next, the operation of the seal structure 7 of the first embodiment will be described.
According to the seal structure 7 of the first embodiment, as shown in FIG. 3A, the first mounting portion 71 formed on the first housing 4 and the second mounting portion formed on the second housing 5. The first housing 4 and the second housing 5 are assembled in a state where the sealing member 73 is disposed between the first housing 4 and the second housing 5. Specifically, the seal member 73 is inserted into the convex portion 712 of the first outer peripheral wall portion 43b so as to be sandwiched between the outer guide portion 733a and the inner guide portion 733b. Then, the first casing 4 is assembled together with the seal member 73 so as to cover the second casing 5 from above in the vertical direction. When the first housing 4 and the second housing 5 are assembled, the outer guide portion 733a of the seal member 73 is located between the first outer peripheral wall portion 43b and the convex portion 712, as shown in FIG. While being inserted, the inner guide portion 733 b is disposed between the convex portion 712 and the inner convex portion 723. Thereafter, the first outer peripheral wall portion 43b moves to a position covering the second mounting portion 72 formed at the end of the second outer peripheral wall portion 52b from the outside in the horizontal direction, so that the first casing 4 and the second casing are moved. The body 5 is completely assembled. When the first housing 4 and the second housing 5 are completely assembled, the apex of the upper surface protrusion 732a is in contact with the horizontal center position of the surface facing the lower side of the convex portion 712, while the lower surface protrusion 732b With the apex in contact with the center position in the horizontal direction of the surface facing the upper surface of the recess 722, the upper surface protrusion 732a and the lower surface protrusion 732b are crushed in the vertical direction. And the sealing member 73 is arrange | positioned in the position where the surface which faces the downward direction of the perpendicular direction of the sealing member main body 731 touches the 2nd surface 721a. As a result, the space between the first housing 4 and the second housing 5 is closed without a gap by the seal member 73.

上記のようなシール構造７によれば、第一筐体４と第二筐体５とが組み付けられた際に、下面突起部７３２ｂの頂点が凹部７２２の鉛直方向の上方を向く面に接触して押し潰されることで、シール部材７３を第二筐体５に対して局所的に密着させることができる。即ち、シール部材本体７３１の鉛直方向の下方を向く面が第二面７２１ａに対して押しつけられて面接触するだけではなく、第二面７２１ａよりも凹んだ凹部７２２に対して下面突起部７３２ｂの頂点から押し潰すことで点接触させることができる。例えば、凹部７２２が形成されていない場合、換言すると、下面突起部７３２ｂの頂点が第二面７２１ａに向かって接触するように形成されている場合、下面突起部７３２ｂが押し潰される前にシール部材本体７３１が傾くことで端部などが第二面７２１ａと接触してしまい、下面突起部７３２ｂの頂点のみで点接触できないおそれがある。ところが、本第一実施形態の凹部７２２が形成されている場合には、下面突起部７３２ｂの頂点が第二面７２１ａよりも窪んで形成される凹部７２２内の鉛直方向の上方を向く面と接触することで、下面突起部７３２ｂの頂点が第二面７２１ａに直接接触する場合に比べて、高い精度で第二筐体５に形成された第二取付部７２に対して点接触させることができる。そして、下面突起部７３２ｂを頂点で点接触させて押し潰すことで、第二筐体５に形成された第二取付部７２に対してシール部材７３が接触する面積を小さくして、局所的に面圧を高めることができる。その結果、高温高湿のような環境下に秤１が曝されて第一筐体４や第二筐体５が変形するなどして位置がずれた場合であっても、シール部材７３の下面突起部７３２ｂと凹部７２２との密着度を確保することができる。これにより、第一筐体４や第二筐体５が変形し、第一面７１１ａと第二面７２１ａとの間の隙間の大きさに変化が生じても、安定したシール性を確保することができる。   According to the seal structure 7 as described above, when the first housing 4 and the second housing 5 are assembled, the apex of the lower surface protrusion 732b contacts the surface of the recess 722 facing upward in the vertical direction. By being crushed, the seal member 73 can be brought into close contact with the second housing 5 locally. That is, the surface of the seal member main body 731 that faces downward in the vertical direction is not only pressed against the second surface 721a and brought into surface contact, but also the lower surface protrusion 732b of the recess 722 that is recessed from the second surface 721a. Point contact can be achieved by crushing from the apex. For example, when the recess 722 is not formed, in other words, when the apex of the lower surface protrusion 732b is formed so as to contact the second surface 721a, the seal member is formed before the lower surface protrusion 732b is crushed. If the main body 731 is inclined, the end portion or the like comes into contact with the second surface 721a, and there is a possibility that point contact cannot be made only with the apex of the lower surface protrusion 732b. However, when the concave portion 722 of the first embodiment is formed, the top surface of the lower surface protrusion 732b contacts the surface facing upward in the vertical direction in the concave portion 722 formed to be recessed from the second surface 721a. By doing so, it is possible to make point contact with the second mounting portion 72 formed on the second housing 5 with higher accuracy than when the apex of the lower surface protrusion 732b directly contacts the second surface 721a. . Then, the area where the seal member 73 comes into contact with the second mounting portion 72 formed on the second housing 5 is reduced by bringing the lower surface protruding portion 732b into point contact at the apex and crushing, and locally. The surface pressure can be increased. As a result, even if the scale 1 is exposed to an environment such as high temperature and high humidity and the first housing 4 or the second housing 5 is deformed, the bottom surface of the seal member 73 is not aligned. The degree of adhesion between the protrusion 732b and the recess 722 can be ensured. Thereby, even if the 1st housing | casing 4 and the 2nd housing | casing 5 deform | transform and the magnitude | size of the clearance gap between the 1st surface 711a and the 2nd surface 721a arises, the stable sealing performance is ensured. Can do.

また、突起部７３２を挟み込んで覆うように外側ガイド部７３３ａ及び内側ガイド部７３３ｂが形成されることで、凸部７１２に対してシール部材７３の位置を容易に定めることができる。そのため、上面突起部７３２ａを凸部７１２の鉛直方向の下方を向く面に対して高い精度で点接触させることができる。即ち、シール部材７３がずれたり傾いたりしてしまうことを防止して、凸部７１２の鉛直方向の下方を向く面に対して上面突起部７３２ａの姿勢を維持して垂直に接触させることができる。また、上面突起部７３２ａと水平方向の中心位置が同じ位置に形成されている下面突起部７３２ｂの位置も定めることができ、凹部７２２の鉛直方向の上方を向く面に対して高い精度で下面突起部７３２ｂを点接触させることができる。したがって、第一面７１１ａと第二面７２１ａとが対向する対向方向である鉛直方向の上方と下方の両側でシール部材７３の突起部７３２をそれぞれ高い精度で点接触させることができる。したがって、第一面７１１ａと第二面７２１ａとの間の隙間の大きさに変化が生じても、より安定したシール性を確保することができる。   Further, the outer guide portion 733a and the inner guide portion 733b are formed so as to sandwich and cover the protruding portion 732, whereby the position of the seal member 73 can be easily determined with respect to the convex portion 712. Therefore, the upper surface protrusion 732a can be brought into point contact with high accuracy with respect to the surface of the convex portion 712 facing downward in the vertical direction. That is, the seal member 73 can be prevented from being displaced or inclined, and the upper surface protrusion 732a can be kept in vertical contact with the surface of the protrusion 712 that faces downward in the vertical direction. . Further, the position of the lower surface protrusion 732b, which is formed at the same horizontal center position as the upper surface protrusion 732a, can also be determined, and the lower surface protrusion can be made with high accuracy with respect to the surface of the recess 722 facing upward in the vertical direction. The part 732b can be brought into point contact. Therefore, the protrusions 732 of the seal member 73 can be brought into point contact with high accuracy on both the upper side and the lower side in the vertical direction, which is the opposing direction in which the first surface 711a and the second surface 721a face each other. Therefore, even if a change occurs in the size of the gap between the first surface 711a and the second surface 721a, more stable sealing performance can be ensured.

また、凸部７１２と凹部７２２の水平方向の中心位置を揃えることで、水平方向の同じ位置で突起部７３２が接触するため、第一取付部７１や第二取付部７２に対して、上面突起部７３２ａや下面突起部７３２ｂを強く押しつけることができる。即ち、第一面７１１ａの凸部７１２及び第二面７２１ａの凹部７２２に生じる面圧をより高めることができる。したがって、シール部材７３の下面突起部７３２ｂと凹部７２２との密着度を高い精度で確保することができる。これにより、第一面７１１ａと第二面７２１ａとの間の隙間の大きさに変化が生じても、より一層安定したシール性を確保することができる。   Further, by aligning the horizontal center positions of the convex portion 712 and the concave portion 722, the projection portion 732 comes into contact with the same position in the horizontal direction, so that the upper surface projection with respect to the first attachment portion 71 and the second attachment portion 72. The portion 732a and the lower surface protrusion 732b can be pressed strongly. That is, the surface pressure generated in the convex portion 712 of the first surface 711a and the concave portion 722 of the second surface 721a can be further increased. Accordingly, it is possible to ensure the degree of adhesion between the lower surface protrusion 732b of the seal member 73 and the recess 722 with high accuracy. Thereby, even if a change occurs in the size of the gap between the first surface 711a and the second surface 721a, a more stable sealing performance can be ensured.

また、シール部材７３がシリコンゴムで構成されていることで、エラストマー等の他のゴム材などの弾性部材を用いるよりも硬度等を変更し易くなり、シール部材７３を容易に形成できる。   Further, since the seal member 73 is made of silicon rubber, it is easier to change the hardness and the like than using an elastic member such as another rubber material such as an elastomer, and the seal member 73 can be easily formed.

また、このようなシール構造７を用いることで、秤１の秤本体３の内部に水等の液体が進入してしまうことを高い精度で防止することができる。そのため、信頼性の高い秤１等の電子機器を提供することができる。   In addition, by using such a seal structure 7, it is possible to prevent liquid such as water from entering the balance body 3 of the balance 1 with high accuracy. Therefore, a highly reliable electronic device such as the scale 1 can be provided.

《第二実施形態》
次に、図４（ａ）及び（ｂ）を参照して第二実施形態のシール構造８について説明する。
第二実施形態においては第一実施形態と同様の構成要素には同一の符号を付して詳細な説明を省略する。この第二実施形態のシール構造８は、第一面８１１ａ及び第二面８２１ａの両方に凹部が形成される点について第一実施形態と相違する。 << Second Embodiment >>
Next, the seal structure 8 according to the second embodiment will be described with reference to FIGS. 4 (a) and 4 (b).
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. The seal structure 8 of the second embodiment is different from the first embodiment in that a recess is formed on both the first surface 811a and the second surface 821a.

第二実施形態のシール構造８は、第一実施形態と同様に、第一外周部４３１と第二外周部５２１との間に、弾性変形可能な第二シール部材８３を設けることで、第一筐体４と第二筐体５との間を液密に閉塞する。第二実施形態のシール構造８は、第一外周壁部４３１ｂの鉛直方向の下方を向く端面と、第二外周壁部５２１ｂの鉛直方向の上方を向く端面との間に設けられる。第二実施形態の第一外周壁部４３１ｂと第二外周壁部５２１ｂとは、第一実施形態において第一筐体４と第二筐体５とが組み合わされた際に第二外周壁部５２ｂが第一外周壁部４３ｂよりも水平方向の内側に配置されていた場合と異なり、水平方向に重ならずに頂面同士が鉛直方向に向き合うように組み付けられる。第二実施形態のシール構造８は、図４（ａ）及び（ｂ）に示すように、第一外周部４３１に形成されて第二シール部材８３が取り付けられる第一取付部８１と、第二外周部５２１に形成されて第一取付部８１とともに第二シール部材８３を挟み込む第二取付部８２と、第一外周部４３１と第二外周部５２１との間に配置される第二シール部材８３と、を備える。   As in the first embodiment, the seal structure 8 of the second embodiment is provided with a second seal member 83 that can be elastically deformed between the first outer peripheral portion 431 and the second outer peripheral portion 521, thereby The space between the casing 4 and the second casing 5 is liquid-tightly closed. The seal structure 8 of the second embodiment is provided between an end surface of the first outer peripheral wall portion 431b facing downward in the vertical direction and an end surface of the second outer peripheral wall portion 521b facing upward in the vertical direction. The first outer peripheral wall portion 431b and the second outer peripheral wall portion 521b of the second embodiment are the second outer peripheral wall portion 52b when the first housing 4 and the second housing 5 are combined in the first embodiment. Unlike the case where is disposed in the horizontal direction from the first outer peripheral wall portion 43b, the top surfaces are assembled so as to face each other in the vertical direction without overlapping in the horizontal direction. As shown in FIGS. 4A and 4B, the seal structure 8 according to the second embodiment includes a first mounting portion 81 formed on the first outer peripheral portion 431 and to which the second seal member 83 is attached, A second mounting portion 82 formed on the outer peripheral portion 521 and sandwiching the second seal member 83 together with the first mounting portion 81, and a second seal member 83 disposed between the first outer peripheral portion 431 and the second outer peripheral portion 521. And comprising.

第二実施形態の第一取付部８１は、第一実施形態と同様に、第一外周部４３１の内側に全周にわたって形成されている。第二実施形態の第一取付部８１は、第一外周壁部４３１ｂの端部から内側に向かって突出して形成されている。第二実施形態の第一取付部８１は、第一面８１１ａが形成される第一取付部本体８１１と、第一面８１１ａから窪む上方凹部８１２と、第二シール部材８３の外側への移動を規制する規制凹部８１３と、第二シール部材８３の内側への移動を規制する規制凸部８１４とを有する。   The 1st attaching part 81 of 2nd embodiment is formed over the perimeter inside the 1st outer peripheral part 431 similarly to 1st embodiment. The first mounting portion 81 of the second embodiment is formed to protrude inward from the end portion of the first outer peripheral wall portion 431b. The first mounting portion 81 of the second embodiment includes a first mounting portion main body 811 in which the first surface 811a is formed, an upper recessed portion 812 that is recessed from the first surface 811a, and movement to the outside of the second seal member 83. And a restriction convex part 814 for restricting the inward movement of the second seal member 83.

第一取付部本体８１１は、第一外周壁部４３１ｂの鉛直方向の下方側の端部から、全周にわたって水平方向の内側に向かって突出して形成されている。第一取付部本体８１１は、鉛直方向の下方を向く水平面である第一面８１１ａが形成されるように、第一外周壁部４３１ｂの内側から突出している。   The first attachment portion main body 811 is formed so as to protrude from the end portion on the lower side in the vertical direction of the first outer peripheral wall portion 431b toward the inner side in the horizontal direction over the entire circumference. The first attachment portion main body 811 protrudes from the inside of the first outer peripheral wall portion 431b so as to form a first surface 811a that is a horizontal surface facing downward in the vertical direction.

上方凹部８１２は、断面台形状をなして第一面８１１ａから鉛直方向の上方に向かって凹んで形成されている。即ち、上方凹部８１２には、鉛直方向の上方に向かって次第に縮径するような傾斜面が形成されている。   The upper recess 812 has a trapezoidal cross section and is recessed from the first surface 811a in the vertical direction. In other words, the upper recess 812 is formed with an inclined surface that gradually decreases in diameter toward the upper side in the vertical direction.

規制凹部８１３は、上方凹部８１２よりも水平方向の内側に離間した位置で、第一面８１１ａから鉛直方向の上方に向かって凹んで形成されている。規制凹部８１３は、上方凹部８１２よりも鉛直方向に長い断面矩形状をなして凹んでいる。   The restriction recess 813 is formed to be recessed from the first surface 811a upward in the vertical direction at a position spaced inward in the horizontal direction from the upper recess 812. The restriction recess 813 is recessed with a rectangular section that is longer in the vertical direction than the upper recess 812.

規制凸部８１４は、規制凹部８１３の水平方向の内側に隣接した位置に形成されている。規制凸部８１４は、規制凹部８１３の底面である鉛直方向の下方を向く面から、鉛直方向の下方に向かって突出して形成されている。規制凸部８１４は、断面矩形状をなして第一面８１１ａよりも鉛直方向の下方に突出している。   The restriction convex portion 814 is formed at a position adjacent to the inside of the restriction concave portion 813 in the horizontal direction. The restriction convex portion 814 is formed so as to protrude downward in the vertical direction from a surface facing the lower side in the vertical direction, which is the bottom surface of the restriction concave portion 813. The restricting convex portion 814 has a rectangular cross section and protrudes downward in the vertical direction from the first surface 811a.

第二実施形態の第二取付部８２は、第一実施形態とは異なり、第二外周部５２１の内側に全周にわたって形成されている。第二実施形態の第二取付部８２は、第二外周壁部５２１ｂの端部から内側に向かって突出して形成されている。第二実施形態の第二取付部８２は、第二面８２１ａが形成される第二取付部本体８２１と、第二面８２１ａから窪む下方凹部８２２を有する。   Unlike the first embodiment, the second mounting portion 82 of the second embodiment is formed over the entire circumference inside the second outer peripheral portion 521. The second attachment portion 82 of the second embodiment is formed to protrude inward from the end portion of the second outer peripheral wall portion 521b. The second attachment portion 82 of the second embodiment has a second attachment portion main body 821 in which the second surface 821a is formed, and a lower recess 822 that is recessed from the second surface 821a.

第二取付部本体８２１は、第二外周壁部５２１ｂの鉛直方向の上方側の端部から、全周にわたって水平方向の内側に向かって突出して形成されている。第二取付部本体８２１は、鉛直方向の上方を向く水平面である第二面８２１ａが形成されるように、第二外周壁部５２１ｂの内側から突出している。第二取付部本体８２１の第二面８２１ａは、第一面８１１ａと鉛直方向に対向するよう形成されている。   The second attachment portion main body 821 is formed so as to protrude inward in the horizontal direction over the entire circumference from the end portion on the upper side in the vertical direction of the second outer peripheral wall portion 521b. The second attachment portion main body 821 protrudes from the inside of the second outer peripheral wall portion 521b so as to form a second surface 821a that is a horizontal surface facing upward in the vertical direction. The second surface 821a of the second attachment portion main body 821 is formed to face the first surface 811a in the vertical direction.

下方凹部８２２は、断面台形状をなして第二面８２１ａから鉛直方向の下方に向かって凹んで形成されている。即ち、下方凹部８２２には、鉛直方向の下方に向かって次第に縮径するような傾斜面が形成されている。本実施形態の下方凹部８２２は、水平方向における中心位置が上方凹部８１２と同じ位置となるように形成されている。   The lower recess 822 has a trapezoidal cross section and is recessed from the second surface 821a downward in the vertical direction. That is, the lower concave portion 822 is formed with an inclined surface that gradually decreases in diameter toward the lower side in the vertical direction. The lower recess 822 of the present embodiment is formed so that the center position in the horizontal direction is the same position as the upper recess 812.

第二シール部材８３は、第一実施形態と同様に、弾性変形可能な部材で構成されている。第二シール部材８３は、第一取付部８１と第二取付部８２との間に全周にわたって配置されるよう環状に形成されている。具体的には、本実施形態の第二シール部材８３は、食品を扱う部材等に使用されるゴム材であるシリコンゴムによって構成される。本実施形態の第二シール部材８３は、第二筐体５と第一筐体４とが組み付けられた際に、第一面８１１ａ及び第二面８２１ａに当接するよう形成される第二シール部材本体８３１と、第二突起部８３２と、第二シール部材本体８３１の一方の端部から鉛直方向の上方に向かって突出する第二ガイド部８３３と、第二シール部材本体８３１の他方の端部に形成される傘部８３４とを有する。   The 2nd seal member 83 is comprised by the member which can be elastically deformed similarly to 1st embodiment. The second seal member 83 is formed in an annular shape so as to be disposed over the entire circumference between the first attachment portion 81 and the second attachment portion 82. Specifically, the second seal member 83 of the present embodiment is made of silicon rubber, which is a rubber material used for members that handle food. The second seal member 83 of the present embodiment is formed so as to contact the first surface 811a and the second surface 821a when the second housing 5 and the first housing 4 are assembled. A main body 831, a second protrusion 832, a second guide part 833 projecting upward in the vertical direction from one end of the second seal member main body 831, and the other end of the second seal member main body 831 And an umbrella portion 834 formed on the surface.

第二シール部材本体８３１は、第一面８１１ａと第二面８２１ａとが対向する方向と直交する方向に延びて形成されている。本実施形態の第二シール部材本体８３１は、断面形状が水平方向に延びた断面矩形状に形成される。第二シール部材本体８３１は、第二筐体５と第一筐体４とが組み付けられた際に、鉛直方向の上方の面が第一面８１１ａに当接し、下方の面が第二面８２１ａに当接するよう形成されている。   The second seal member main body 831 is formed to extend in a direction orthogonal to the direction in which the first surface 811a and the second surface 821a face each other. The second seal member main body 831 of the present embodiment is formed in a rectangular cross section whose cross sectional shape extends in the horizontal direction. When the second casing 5 and the first casing 4 are assembled, the second seal member main body 831 has the upper surface in the vertical direction abutting against the first surface 811a and the lower surface being the second surface 821a. It is formed so as to be in contact with.

第二突起部８３２は、第二シール部材本体８３１の鉛直方向の上方及び下方を向く面からそれぞれ突出する。第二突起部８３２は、頂点が上方凹部８１２及び下方凹部８２２に接触する位置に形成される。本実施形態の第二突起部８３２は、第一実施形態の突起部７３２と同形状に形成されている。具体的には、本実施形態の第二突起部８３２は、第二シール部材本体８３１の鉛直方向の上方を向く面から断面三角形状をなして突出する第二上面突起部８３２ａと、第二シール部材本体８３１の鉛直方向の下方を向く面から断面三角形状をなして突出する第二下面突起部８３２ｂとを有する。本実施形態の第二上面突起部８３２ａは、第二シール部材本体８３１から突出する水平方向の位置が、第二下面突起部８３２ｂと同じ位置に形成されている。したがって、第二下面突起部８３２ｂは、第二上面突起部８３２ａの頂点を通過して第二シール部材本体８３１の鉛直方向の上方を向く面と垂直な仮想中心線ＶＣ上に、第二下面突起部８３２ｂの頂点が配置されるように形成されている。   The second protrusions 832 protrude from the surfaces of the second seal member main body 831 facing upward and downward in the vertical direction, respectively. The second protrusion 832 is formed at a position where the apex contacts the upper recess 812 and the lower recess 822. The second protrusion 832 of this embodiment is formed in the same shape as the protrusion 732 of the first embodiment. Specifically, the second protrusion 832 of the present embodiment includes a second upper surface protrusion 832a that protrudes in a triangular shape from the surface of the second seal member main body 831 that faces upward in the vertical direction, and a second seal. It has the 2nd lower surface protrusion part 832b which makes a cross-sectional triangle shape from the surface which faces the downward direction of the perpendicular direction of the member main body 831. The second upper surface protrusion 832a of the present embodiment is formed such that the horizontal position protruding from the second seal member body 831 is the same position as the second lower surface protrusion 832b. Therefore, the second lower surface protrusion portion 832b passes the apex of the second upper surface protrusion portion 832a and is on the virtual center line VC perpendicular to the surface of the second seal member main body 831 facing upward in the vertical direction. The apex of the portion 832b is formed so as to be arranged.

第二ガイド部８３３は、第一筐体４と第二筐体５とが組み付けられた際に、規制凹部８１３に挿入可能な形状となるように第二シール部材本体８３１から突出する。本実施形態の第二ガイド部８３３は、第二シール部材本体８３１の水平方向の内側の端部から断面矩形状をなして鉛直方向の上方に向かって突出する。即ち、本実施形態の第二ガイド部８３３は、第一実施形態の内側ガイド部７３３ｂと同様の形状に形成される。   The second guide portion 833 protrudes from the second seal member main body 831 so that it can be inserted into the restriction recess 813 when the first housing 4 and the second housing 5 are assembled. The second guide portion 833 of the present embodiment has a rectangular cross section and protrudes upward in the vertical direction from the end portion on the inner side in the horizontal direction of the second seal member main body 831. That is, the second guide portion 833 of the present embodiment is formed in the same shape as the inner guide portion 733b of the first embodiment.

傘部８３４は、第二シール部材本体８３１の水平方向の外側の端部から鉛直方向の両側に向かってそれぞれ突出する。傘部８３４は、第一筐体４と第二筐体５と組み付けられた際に、第一外周部４３１の端面と第二外周部５２１の端面とを覆うように形成される。本実施形態の傘部８３４は、矢尻のような形状をしている。具体的には、本実施形態の傘部８３４は、第二シール部材８３が第一取付部８１と第二取付部８２との間に配置された状態で、第二シール部材本体８３１の水平方向外側の端部から、鉛直方向の上下方向に向かって弓形に弧を描きながら突出して形成されている。   The umbrella part 834 protrudes from the horizontal outer end of the second seal member main body 831 toward both sides in the vertical direction. The umbrella portion 834 is formed so as to cover the end surface of the first outer peripheral portion 431 and the end surface of the second outer peripheral portion 521 when assembled with the first housing 4 and the second housing 5. The umbrella part 834 of this embodiment has a shape like an arrowhead. Specifically, the umbrella portion 834 of the present embodiment is configured such that the second seal member 83 is disposed between the first attachment portion 81 and the second attachment portion 82 in the horizontal direction of the second seal member main body 831. It protrudes from the outer end while drawing an arc in the vertical direction in the vertical direction.

次に、上記第二実施形態のシール構造８の作用について説明する。
第二実施形態のシール構造８によれば、図４（ａ）に示すように、第一筐体４に形成される第一取付部８１と第二筐体５に形成される第二取付部８２との間に第二シール部材８３が配置された状態で、第一筐体４と第二筐体５とが組み付けられる。具体的には、第一取付部８１の規制凹部８１３に対して、第二シール部材８３の第二ガイド部８３３が挿入される。そして、第一筐体４を第二シール部材８３とともに、第二筐体５に対して鉛直方向の上方から被せるように組み付ける。第一筐体４と第二筐体５とが組み付けられると、図４（ｂ）に示すように、第二ガイド部８３３が規制凸部８１４の水平方向の外側に隣接した状態となる。この状態では、第二上面突起部８３２ａの頂点が上方凹部８１２の下方を向く面の水平方向の中心位置に接触しつつ、第二下面突起部８３２ｂの頂点が下方凹部８２２の上面を向く面の水平方向の中心位置に接触して、第二上面突起部８３２ａ及び第二下面突起部８３２ｂが鉛直方向に押し潰される。さらに、第一外周部４３１と第二外周部５２１とによって鉛直方向に第二シール部材本体８３１が挟み込まれることで、傘部８３４の先端が第一外周部４３１及び第二外周部５２１上に乗り上げる。これにより、第二シール部材８３は、傘部８３４が筐体の外部にはみ出した状態で、第二シール部材本体８３１の鉛直方向の上方を向く面が第一面８１１ａと接し、下方を向く面が第二面８２１ａに接する位置に配置される。その結果、第一筐体４と第二筐体５との間が第二シール部材８３によって隙間なく密閉される。また、傘部８３４によって、第一外周部４３１と第二外周部５２１との端部が隠される。 Next, the operation of the seal structure 8 of the second embodiment will be described.
According to the seal structure 8 of the second embodiment, as shown in FIG. 4A, the first mounting portion 81 formed on the first housing 4 and the second mounting portion formed on the second housing 5. The first casing 4 and the second casing 5 are assembled in a state where the second seal member 83 is disposed between the first casing 4 and the second casing 5. Specifically, the second guide portion 833 of the second seal member 83 is inserted into the restriction recess 813 of the first attachment portion 81. Then, the first casing 4 is assembled together with the second seal member 83 so as to cover the second casing 5 from above in the vertical direction. When the first housing 4 and the second housing 5 are assembled, as shown in FIG. 4B, the second guide portion 833 is adjacent to the outside in the horizontal direction of the restricting convex portion 814. In this state, the vertex of the second upper surface protrusion 832a is in contact with the horizontal center position of the surface facing downward of the upper recess 812, while the vertex of the second lower surface protrusion 832b faces the upper surface of the lower recess 822. The second upper surface protrusion 832a and the second lower surface protrusion 832b are crushed in the vertical direction in contact with the center position in the horizontal direction. Further, the second seal member main body 831 is sandwiched in the vertical direction by the first outer peripheral portion 431 and the second outer peripheral portion 521, so that the tip of the umbrella portion 834 rides on the first outer peripheral portion 431 and the second outer peripheral portion 521. . Accordingly, the second seal member 83 is a surface in which the upper surface in the vertical direction of the second seal member main body 831 is in contact with the first surface 811a and the lower surface in the state where the umbrella portion 834 protrudes outside the housing. Is disposed at a position in contact with the second surface 821a. As a result, the space between the first housing 4 and the second housing 5 is sealed by the second seal member 83 without a gap. Further, the umbrella portion 834 hides the end portions of the first outer peripheral portion 431 and the second outer peripheral portion 521.

上記のようなシール構造８によれば、第一筐体４と第二筐体５とが組み付けられた際に、第二下面突起部８３２ｂの頂点が下方凹部８２２の鉛直方向の上方を向く面に接触し、第二上面突起部８３２ａの頂点が上方凹部８１２の鉛直方向の下方を向く面に接触して押し潰されることで、第二シール部材８３を第一筐体４や第二筐体５に局所的に密着させることができる。特に、第一面８１１ａや第二面８２１ａから突出しているのではなく、窪んで形成される上方凹部８１２や下方凹部８２２に第二上面突起部８３２ａや第二下面突起部８３２ｂの頂点を接触して押し潰すことで、第一面８１１ａや第二面８２１ａによって第二シール部材本体８３１を安定して支持した状態で、局所的に面圧を高めることができる。したがって、第一筐体４や第二筐体５が変形するなどして位置がずれた場合であっても、局所的に面圧が高い状態を維持でき、第一筐体４や第二筐体５に対する第二シール部材８３の密着度を、より高い精度で確保することができる。これにより、第一筐体４や第二筐体５が変形し、第一面８１１ａと第二面８２１ａとの間の隙間の大きさに変化が生じても、より安定したシール性を確保することができる。   According to the seal structure 8 as described above, when the first housing 4 and the second housing 5 are assembled, the surface of the second lower surface protruding portion 832b that faces upward in the vertical direction of the lower recessed portion 822. , And the top of the second upper surface protrusion 832a contacts the surface of the upper recess 812 facing downward in the vertical direction and is crushed so that the second seal member 83 is moved to the first housing 4 or the second housing. 5 can be locally adhered. In particular, it does not protrude from the first surface 811a or the second surface 821a, but the top of the second upper surface protruding portion 832a or the second lower surface protruding portion 832b is brought into contact with the upper recessed portion 812 or the lower recessed portion 822 formed to be recessed. By crushing, the surface pressure can be locally increased in a state where the second seal member body 831 is stably supported by the first surface 811a and the second surface 821a. Therefore, even when the first housing 4 or the second housing 5 is displaced due to deformation or the like, a state where the surface pressure is locally high can be maintained, and the first housing 4 or the second housing 5 can be maintained. The degree of adhesion of the second seal member 83 to the body 5 can be ensured with higher accuracy. Thereby, even if the first housing 4 and the second housing 5 are deformed and the size of the gap between the first surface 811a and the second surface 821a changes, a more stable sealing performance is ensured. be able to.

また、上方凹部８１２及び下方凹部８２２に傾斜面が形成されていることで、第二上面突起部８３２ａや第二下面突起部８３２ｂの頂点を上方凹部８１２の鉛直方向の下方を向く面や下方凹部８２２の鉛直方向の上方を向く面に、より確実に案内することができる。そのため、第二上面突起部８３２ａや第二下面突起部８３２ｂが傾いて押し潰されることを防止して、より高い精度で点接触させることができる。   In addition, since the upper concave portion 812 and the lower concave portion 822 are formed with inclined surfaces, the apex of the second upper surface protruding portion 832a and the second lower surface protruding portion 832b is the surface or lower concave portion facing the lower side of the upper concave portion 812 in the vertical direction. It is possible to more reliably guide the surface of 822 facing upward in the vertical direction. Therefore, it is possible to prevent the second upper surface protrusion 832a and the second lower surface protrusion 832b from being inclined and crushed and to make point contact with higher accuracy.

《第三実施形態》
次に、図５から図７を参照して第三実施形態のシール構造９について説明する。
第三実施形態においては第一実施形態及び第二実施形態と同様の構成要素には同一の符号を付して詳細な説明を省略する。この第三実施形態のシール構造９は、突起部について第一実施形態や第二実施形態と相違する。 << Third embodiment >>
Next, the seal structure 9 according to the third embodiment will be described with reference to FIGS.
In 3rd embodiment, the same code | symbol is attached | subjected to the component similar to 1st embodiment and 2nd embodiment, and detailed description is abbreviate | omitted. The seal structure 9 of the third embodiment is different from the first embodiment and the second embodiment with respect to the protrusions.

第三実施形態のシール構造９は、秤１を駆動するバッテリーを収容するためのバッテリー室５３を閉塞するバッテリー室カバー５４に用いられる。   The seal structure 9 of the third embodiment is used for a battery chamber cover 54 that closes a battery chamber 53 for housing a battery that drives the scale 1.

バッテリー室５３は、図６に示すように、秤１の底面部５１から裏面視略矩形状の開口として窪んで形成される。バッテリー室５３は、この開口をバッテリー室カバー５４によって開閉可能に覆われている。本実施形態のバッテリー室５３は、バッテリー室カバー５４を着脱可能に収容するカバー装着穴部５３１と、カバー装着穴部５３１の内部側であってバッテリーを収容するバッテリー収容穴部５３２とを備える。
なお、バッテリーは、例えば、電池などの交換可能な電源であり、本実施形態では、一例として、単三型の乾電池または充電池が用いられる。 As shown in FIG. 6, the battery chamber 53 is formed to be recessed from the bottom surface portion 51 of the scale 1 as an opening having a substantially rectangular shape in back view. The battery chamber 53 is covered with a battery chamber cover 54 so that the opening can be opened and closed. The battery chamber 53 of the present embodiment includes a cover mounting hole portion 531 that detachably stores the battery chamber cover 54 and a battery storage hole portion 532 that is inside the cover mounting hole portion 531 and stores the battery.
The battery is, for example, a replaceable power source such as a battery. In this embodiment, an AA dry battery or a rechargeable battery is used as an example.

カバー装着穴部５３１は、底面部５１から鉛直方向の上方に向かって窪んで形成される。カバー装着穴部５３１は、バッテリー室カバー５４の平面視の外形よりもわずかに大きな略矩形状の開口を有する。カバー装着穴部５３１は、鉛直方向の上方である穴底にバッテリー室カバー５４が当接可能な平坦面からなる蓋受け面５３１ａを有している。カバー装着穴部５３１の深さは、バッテリー室カバー５４の厚さと略等しい深さになっている。   The cover mounting hole portion 531 is formed to be recessed from the bottom surface portion 51 upward in the vertical direction. The cover mounting hole 531 has a substantially rectangular opening that is slightly larger than the outer shape of the battery chamber cover 54 in plan view. The cover mounting hole 531 has a lid receiving surface 531a that is a flat surface with which the battery chamber cover 54 can come into contact with the bottom of the hole that is above in the vertical direction. The cover mounting hole 531 has a depth substantially equal to the thickness of the battery chamber cover 54.

バッテリー収容穴部５３２は、カバー装着穴部５３１の穴底部の内部側であって、平面視においてカバー装着穴部５３１の外形よりも内側の領域に形成される。即ち、バッテリー収容穴部５３２は、カバー装着穴部５３１の蓋受け面５３１ａから鉛直方向の上方に窪んで形成されている。バッテリー収容穴部５３２は、水平にバッテリーを収容可能な大きさに形成されている。   The battery housing hole 532 is formed on the inner side of the bottom of the cover mounting hole 531 and inside the outer shape of the cover mounting hole 531 in plan view. That is, the battery housing hole 532 is formed to be recessed upward in the vertical direction from the cover receiving surface 531 a of the cover mounting hole 531. The battery accommodating hole 532 is formed in a size that can accommodate the battery horizontally.

以下、バッテリー室カバー５４の構成を説明する場合、特に断らない限りは、バッテリー室カバー５４によってバッテリー室５３を閉じた状態での位置関係に基づいて説明する。
バッテリー室カバー５４は、内蓋部５４１と、外蓋部５４２と、内蓋部５４１と外蓋部５４２との間の空間を閉止するシール構造９とを備える。即ち、第三実施形態では、内蓋部５４１を第一部材とし、外蓋部５４２を第二部材とする。 Hereinafter, the configuration of the battery chamber cover 54 will be described based on the positional relationship in a state where the battery chamber 53 is closed by the battery chamber cover 54 unless otherwise specified.
The battery chamber cover 54 includes an inner lid portion 541, an outer lid portion 542, and a seal structure 9 that closes a space between the inner lid portion 541 and the outer lid portion 542. That is, in the third embodiment, the inner lid portion 541 is a first member, and the outer lid portion 542 is a second member.

内蓋部５４１（第一部材）は、カバー装着穴部５３１の外側である鉛直方向の下方に向かう開口が形成された箱状部材である。内蓋部５４１は、バッテリー室カバー５４を装着した際に、バッテリー収容穴部５３２を閉塞する。具体的には、内蓋部５４１は、カバー装着穴部５３１の内側に蓋受け面５３１ａと接するように挿入されることで、バッテリー収容穴部５３２を閉塞する。内蓋部５４１には、バッテリー収容穴部５３２を閉塞した状態で、バッテリー収容穴部５３２内に連通する連通孔５４１ａが形成されている。   The inner lid portion 541 (first member) is a box-like member in which an opening directed downward in the vertical direction, which is outside the cover mounting hole portion 531, is formed. The inner lid 541 closes the battery housing hole 532 when the battery chamber cover 54 is attached. Specifically, the inner lid portion 541 is inserted inside the cover mounting hole portion 531 so as to be in contact with the lid receiving surface 531a, thereby closing the battery housing hole portion 532. The inner lid 541 is formed with a communication hole 541a that communicates with the battery housing hole 532 in a state where the battery housing hole 532 is closed.

外蓋部５４２（第二部材）は、内蓋部５４１の開口に収まるように配置される。外蓋部５４２は、バッテリー室カバー５４を装着した際に、底面部５１と同一平面となるように配置される。本実施形態の外蓋部５４２は、第二筐体５の底面部５１とともに秤本体３の外表面を構成する板状部材である。   The outer lid part 542 (second member) is disposed so as to fit in the opening of the inner lid part 541. The outer lid portion 542 is disposed so as to be flush with the bottom surface portion 51 when the battery chamber cover 54 is attached. The outer lid portion 542 of the present embodiment is a plate-like member that constitutes the outer surface of the scale body 3 together with the bottom surface portion 51 of the second housing 5.

第三実施形態のシール構造９は、内蓋部５４１に形成される内蓋取付部９１に、弾性変形可能な第三突起部９３３を有する第三シール部材９３を外蓋部５４２により挟み込むことにより、内蓋部５４１と第三シール部材９３との間を液密に閉塞する。具体的には、第三実施形態のシール構造９は、外蓋部５４２側から内蓋部５４１の連通孔５４１ａに向かって水が入り込まないようにシールしている。第三実施形態のシール構造９は、図７（ａ）及び（ｂ）に示すように、内蓋部５４１に形成されて第三シール部材９３が取り付けられる内蓋取付部９１と、外蓋部５４２に形成されて内蓋取付部９１とともに第三シール部材９３を挟み込む外蓋取付部９２と、内蓋部５４１と外蓋部５４２との間に配置される第三シール部材９３と、を備える。   In the seal structure 9 of the third embodiment, a third seal member 93 having a third projection 933 that can be elastically deformed is sandwiched between outer cover parts 542 in an inner cover attachment part 91 formed on the inner cover part 541. The space between the inner lid portion 541 and the third seal member 93 is liquid-tightly closed. Specifically, the seal structure 9 of the third embodiment is sealed so that water does not enter from the outer lid portion 542 side toward the communication hole 541a of the inner lid portion 541. As shown in FIGS. 7A and 7B, the seal structure 9 according to the third embodiment includes an inner lid attachment portion 91 formed on the inner lid portion 541 to which the third seal member 93 is attached, and an outer lid portion. An outer lid mounting portion 92 formed between the inner lid mounting portion 91 and the inner lid mounting portion 91, and a third seal member 93 disposed between the inner lid portion 541 and the outer lid portion 542. .

内蓋取付部９１は、内蓋部５４１の開口内の底部である鉛直方向の下方を向く内面に形成されている。内蓋取付部９１は、内蓋部５４１の外縁の壁部に沿って全周にわたって形成されている。本実施形態の内蓋取付部９１は、内蓋部５４１の鉛直方向の下方を向く内面から突出して形成される内蓋取付部本体９１１と、内蓋取付部本体９１１の鉛直方向の下方を向く頂面から窪む内蓋凹部９１２とを有する。   The inner lid attaching portion 91 is formed on the inner surface facing downward in the vertical direction, which is the bottom portion in the opening of the inner lid portion 541. The inner lid attaching portion 91 is formed over the entire circumference along the outer edge wall portion of the inner lid portion 541. The inner lid attaching portion 91 of the present embodiment faces an inner lid attaching portion main body 911 formed by projecting from an inner surface facing downward in the vertical direction of the inner lid portion 541, and a downward direction in the vertical direction of the inner lid attaching portion main body 911. And an inner lid recess 912 that is recessed from the top surface.

内蓋取付部本体９１１は、内蓋部５４１の内面から鉛直方向に長い断面矩形状をなして突出している。内蓋取付部本体９１１では、鉛直方向の下方を向く頂面である水平面を第一面９１１ａとする。
内蓋凹部９１２は、内蓋取付部本体９１１の第一面９１１ａから鉛直方向の上方に窪んで形成されている。内蓋凹部９１２は、第一面９１１ａから断面形状が鉛直方向に延びる矩形状となるように凹んでいる。 The inner lid attachment portion main body 911 protrudes from the inner surface of the inner lid portion 541 in a rectangular shape that is long in the vertical direction. In the inner lid attachment portion main body 911, a horizontal surface that is a top surface facing downward in the vertical direction is defined as a first surface 911a.
The inner lid recess 912 is formed so as to be recessed upward in the vertical direction from the first surface 911 a of the inner lid mounting portion main body 911. The inner lid recess 912 is recessed so that the cross-sectional shape is a rectangular shape extending in the vertical direction from the first surface 911a.

外蓋取付部９２は、外蓋部５４２の鉛直方向の上方を向く面に形成されている。外蓋取付部９２は、外蓋部５４２の外縁に沿って全周にわたって形成されている。本実施形態の外蓋取付部９２は、外蓋部５４２の鉛直方向の上方を向く面から突出して形成される外蓋取付部本体９２１を有する。   The outer lid mounting portion 92 is formed on the surface of the outer lid portion 542 that faces upward in the vertical direction. The outer lid mounting portion 92 is formed over the entire circumference along the outer edge of the outer lid portion 542. The outer lid attachment portion 92 of the present embodiment has an outer lid attachment portion main body 921 that is formed to protrude from the surface of the outer lid portion 542 that faces upward in the vertical direction.

外蓋取付部本体９２１は、外蓋部５４２の鉛直方向の上方を向く面の外縁に水平方向に長い断面矩形状をなして突出している。外蓋取付部本体９２１では、鉛直方向の上方を向く頂面である水平面を第二面９２１ａとする。   The outer lid attaching portion main body 921 protrudes in the horizontal direction and has a long cross-sectional rectangular shape on the outer edge of the surface of the outer lid portion 542 facing upward in the vertical direction. In the outer lid attachment portion main body 921, a horizontal surface that is a top surface facing upward in the vertical direction is defined as a second surface 921a.

第三シール部材９３は、第一実施形態や第二実施形態と同様に、弾性変形可能な部材で構成されている。第三シール部材９３は、内蓋取付部９１と外蓋取付部９２との間に挟まれて配置されている。本実施形態の第三シール部材９３は、食品を扱う部材等に使用されるゴム材であるシリコンゴムによって構成される。本実施形態の第三シール部材９３は、内蓋部５４１と外蓋部５４２とが組み付けられた際に、第一面９１１ａ及び第二面９２１ａに当接するよう形成される第三シール部材本体９３１と、第三シール部材本体９３１から鉛直方向の上方に延びる挿入部９３２と、挿入部９３２から水平方向に突出する第三突起部９３３と、を有する。   The 3rd seal member 93 is comprised by the member which can be elastically deformed similarly to 1st embodiment and 2nd embodiment. The third seal member 93 is disposed between the inner lid attachment portion 91 and the outer lid attachment portion 92. The third seal member 93 of the present embodiment is made of silicon rubber, which is a rubber material used for members that handle food. The third seal member 93 according to the present embodiment is formed so as to come into contact with the first surface 911a and the second surface 921a when the inner lid portion 541 and the outer lid portion 542 are assembled. And an insertion portion 932 extending upward in the vertical direction from the third seal member main body 931, and a third projection portion 933 protruding in the horizontal direction from the insertion portion 932.

第三シール部材本体９３１は、第一面９１１ａと第二面９２１ａとが対向する方向と直交する方向に延びて、膜状をなして形成されている。第三シール部材本体９３１は、内蓋部５４１と外蓋部５４２とが組み付けられた際に、その外周部分が、鉛直方向の上方の面が第一面９１１ａに当接し、下方の面が第二面９２１ａに当接するよう形成されている。   The third seal member main body 931 extends in a direction orthogonal to the direction in which the first surface 911a and the second surface 921a face each other, and is formed in a film shape. When the inner lid portion 541 and the outer lid portion 542 are assembled, the third seal member main body 931 has an outer peripheral portion whose upper surface in the vertical direction contacts the first surface 911a and whose lower surface is the first surface. It is formed so as to contact the two surfaces 921a.

挿入部９３２は、内蓋凹部９１２に挿入可能な形状となるよう第三シール部材本体９３１から突出する。本実施形態の挿入部９３２は、第三シール部材本体９３１の外周部分から鉛直方向の上方に向かって、鉛直方向に長い断面矩形状をなして突出する。   The insertion portion 932 protrudes from the third seal member main body 931 so as to have a shape that can be inserted into the inner lid recess 912. The insertion portion 932 of the present embodiment protrudes from the outer peripheral portion of the third seal member main body 931 in a vertical cross section that is long in the vertical direction.

第三突起部９３３は、挿入部９３２から第一面９１１ａと第二面９２１ａとが対向する対向方向と直交する方向に向かって突出している。具体的には、本実施形態の第三突起部９３３は、挿入部９３２の水平方向を向く側面から、対向方向である鉛直方向と直交する水平方向に向かって突出している。第三突起部９３３は、挿入部９３２の向かい合う側面から、内蓋凹部９１２の水平方向を向く内側面に頂点が向かうように断面三角形状をなしてそれぞれ突出している。   The third projecting portion 933 protrudes from the insertion portion 932 in a direction orthogonal to the facing direction in which the first surface 911a and the second surface 921a face each other. Specifically, the third protrusion 933 of the present embodiment protrudes from the side surface of the insertion portion 932 facing the horizontal direction in the horizontal direction orthogonal to the vertical direction that is the opposing direction. The third protrusions 933 protrude from the side surfaces of the insertion portion 932 facing each other in a triangular shape so that the apex is directed to the inner surface of the inner lid recess 912 facing the horizontal direction.

次に、上記第三実施形態のシール構造９の作用について説明する。
第三実施形態のシール構造９によれば、図７（ａ）に示すように、内蓋部５４１に形成される内蓋取付部９１と外蓋部５４２に形成される外蓋取付部９２との間に第三シール部材９３が配置された状態で、内蓋部５４１と外蓋部５４２とが組み付けられる。具体的には、内蓋取付部９１の内蓋凹部９１２に対して、鉛直方向の下方から第三シール部材９３の挿入部９３２を挿入して取り付ける。そして、第三突起部９３３の頂点が内蓋凹部９１２の水平方向を向く内側面に接触して押し潰されながら、内蓋凹部９１２の奥まで挿入部９３２が挿入される。その後、第三シール部材９３が取り付けられた内蓋部５４１に対して、外蓋部５４２を鉛直方向の下方から取り付けることで組み付ける。 Next, the operation of the seal structure 9 of the third embodiment will be described.
According to the seal structure 9 of the third embodiment, as shown in FIG. 7A, an inner lid attaching portion 91 formed on the inner lid portion 541 and an outer lid attaching portion 92 formed on the outer lid portion 542, The inner lid portion 541 and the outer lid portion 542 are assembled in a state where the third seal member 93 is disposed therebetween. Specifically, the insertion portion 932 of the third seal member 93 is inserted and attached to the inner lid recess 912 of the inner lid attachment portion 91 from below in the vertical direction. Then, the insertion portion 932 is inserted to the back of the inner lid recess 912 while the apex of the third protrusion 933 contacts and squeezes the inner surface of the inner lid recess 912 that faces in the horizontal direction. Thereafter, the outer lid portion 542 is attached to the inner lid portion 541 to which the third seal member 93 is attached from below in the vertical direction.

内蓋部５４１と外蓋部５４２とが組み付けられてバッテリー室カバー５４が形成されると、図６に示すように、第三シール部材９３の膜状をなす第三シール部材本体９３１が内蓋部５４１と外蓋部５４２との間に配置される。そして、第三シール部材本体９３１の外周部分が、内蓋取付部９１と外蓋取付部９２とに挟まれて隙間なく密閉されている。これにより、第三シール部材本体９３１よりも内蓋部５４１側に密閉された空間が形成されている。   When the inner lid portion 541 and the outer lid portion 542 are assembled to form the battery chamber cover 54, as shown in FIG. 6, the third seal member main body 931 that forms a film shape of the third seal member 93 is used as the inner lid. It is arranged between the part 541 and the outer lid part 542. And the outer peripheral part of the 3rd seal member main body 931 is pinched | interposed into the inner cover attaching part 91 and the outer cover attaching part 92, and is sealed without gap. Thereby, a sealed space is formed on the inner lid portion 541 side with respect to the third seal member main body 931.

この状態で、例えば、秤１の内部の容積が膨張するよう変化した場合には、バッテリー収容穴部５３２を介して連通孔５４１ａから、第三シール部材本体９３１よりも内蓋部５４１側の密閉された空間に空気が入り込む。そして、膜状をなす第三シール部材本体９３１が延びることで、第三シール部材本体９３１よりも内蓋部５４１側の密閉された空間の容積の変化を吸収している。これにより、秤１では、秤１の内部の容積が変化した場合に、秤１の内部の圧力の変化が抑えられている。   In this state, for example, when the internal volume of the balance 1 changes so as to expand, the airtight seal closer to the inner lid portion 541 than the third seal member main body 931 is formed from the communication hole 541a via the battery housing hole portion 532. Air enters the created space. The third seal member main body 931 having a film shape extends to absorb the change in the volume of the sealed space closer to the inner lid portion 541 than the third seal member main body 931. Thereby, in the balance 1, when the volume inside the balance 1 changes, the change of the pressure inside the balance 1 is suppressed.

上記のようなシール構造９によれば、内蓋部５４１に対して外蓋部５４２が組み付けられた際に、第三突起部９３３が挿入部９３２から水平方向に突出して、内蓋凹部９１２の水平方向を向く内側面に向かって接触して押し潰されることで、第三シール部材９３を内蓋凹部９１２に対して局所的に密着させることができる。したがって、内蓋凹部９１２内に挿入された挿入部９３２の鉛直方向の移動を規制することができる。また、内蓋凹部９１２に対して第三突起部９３３の頂点から押し潰すことで点接触させることで、第三シール部材９３を密着させることができ、内蓋凹部９１２の内側面と挿入部９３２の側面との間の空間を液密に閉塞することができる。これにより、第三シール部材９３が内蓋部５４１から脱落すること防止しつつ、内蓋部５４１と第三シール部材９３との間の空間に対して、安定したシール性を確保することができる。   According to the seal structure 9 as described above, when the outer lid portion 542 is assembled to the inner lid portion 541, the third projection portion 933 protrudes in the horizontal direction from the insertion portion 932, and the inner lid concave portion 912. The third seal member 93 can be locally brought into close contact with the inner lid recess 912 by being pressed and crushed toward the inner side surface facing the horizontal direction. Therefore, the vertical movement of the insertion portion 932 inserted into the inner lid recess 912 can be restricted. Also, the third seal member 93 can be brought into close contact with the inner lid recess 912 by crushing from the apex of the third protrusion 933 to the inner lid recess 912, and the inner surface of the inner lid recess 912 and the insertion portion 932 can be brought into close contact with each other. The space between the side surfaces of the two can be liquid-tightly closed. Accordingly, it is possible to ensure a stable sealing property for the space between the inner lid portion 541 and the third seal member 93 while preventing the third seal member 93 from falling off the inner lid portion 541. .

以上、本発明の実施形態について図面を参照して詳述したが、各実施形態における各構成及びそれらの組み合わせ等は一例であり、本発明の趣旨から逸脱しない範囲内で、構成の付加、省略、置換、およびその他の変更が可能である。また、本発明は実施形態によって限定されることはなく、特許請求の範囲によってのみ限定される。   Although the embodiments of the present invention have been described in detail with reference to the drawings, the configurations and combinations of the embodiments in the embodiments are examples, and the addition and omission of configurations are within the scope not departing from the gist of the present invention. , Substitutions, and other changes are possible. Further, the present invention is not limited by the embodiments, and is limited only by the scope of the claims.

電子機器は、本実施形態のデジタル式の秤１に限定されるものではなく、第一筐体４と第二筐体５とのように第一部材と第二部材との二つの部材が組み合わされた筐体を用いる電子機器であればよい。例えば、デジタル式の体重計や温度計等の防水構造が必要とされる電子機器に用いられればよい。   The electronic device is not limited to the digital scale 1 of the present embodiment, and the two members of the first member and the second member such as the first housing 4 and the second housing 5 are combined. Any electronic device may be used as long as the housing is used. For example, it may be used for an electronic device that requires a waterproof structure such as a digital weight scale and a thermometer.

なお、凹部は、第一実施形態から第三実施形態のような形状に限定されるものでなく、第一面７１１ａ、８１１ａ、９１１ａや第二面７２１ａ、８２１ａ、９２１ａから凹んで形成されていればよい。例えば、第二実施形態の上方凹部８１２や下方凹部８２２は、傾斜面が第二上面突起部８３２ａや第二下面突起部８３２ｂの形状に対応して、第二上面突起部８３２ａや第二下面突起部８３２ｂの面と平行に対向するよう形成されていてもよい。このような形状とすることで、第二上面突起部８３２ａや第二下面突起部８３２ｂの頂点が上方凹部８１２の鉛直方向の下方を向く面や下方凹部８２２の鉛直方向の上方を向く面に対して、第二上面突起部８３２ａや第二下面突起部８３２ｂの頂点を、より高い精度で案内することができる。   The concave portion is not limited to the shape as in the first embodiment to the third embodiment, and may be formed to be recessed from the first surface 711a, 811a, 911a or the second surface 721a, 821a, 921a. That's fine. For example, the upper concave portion 812 and the lower concave portion 822 of the second embodiment have inclined surfaces corresponding to the shapes of the second upper surface protruding portion 832a and the second lower surface protruding portion 832b, and the second upper surface protruding portion 832a and the second lower surface protrusion. It may be formed to face the surface of the portion 832b in parallel. With such a shape, the top surface of the second upper surface protrusion portion 832a and the second lower surface protrusion portion 832b faces the surface of the upper recessed portion 812 facing downward in the vertical direction and the surface of the lower recessed portion 822 facing upward in the vertical direction. Thus, the vertices of the second upper surface protrusion 832a and the second lower surface protrusion 832b can be guided with higher accuracy.

また、シール部材７３は、本実施形態のようにシリコンゴムであることに限定されるものではなく、弾性変形可能な材料であればよい、例えば、エラストマー等のゴム材であってもよい。   Further, the seal member 73 is not limited to silicon rubber as in the present embodiment, and may be any elastically deformable material, for example, a rubber material such as an elastomer.

１…秤 ２…計量皿 ２１…上皿 ２２…計量皿本体 ２３…計量皿固定部 ３…秤本体 ４…第一筐体 ４１…天面部 ４２…前面部 ４２ａ…表示部 ４２ｂ…操作ボタン ４３、４３１…第一外周部 ４３ａ…傾斜壁部 ４３ｂ、４３１ｂ…第一外周壁部 ５…第二筐体 ５１…底面部 ５１ａ…脚部 ５２、５２１…第二外周部 ５２ｂ、５２１ｂ…第二外周壁部 ６…ロードセル ６１…計量皿支持体 ７、８、９…シール構造 ７１、８１…第一取付部 ７１１、８１１…第一取付部本体 ７１１ａ、８１１ａ、９１１ａ…第一面 ７１２…凸部 ７２、８２…第二取付部 ７２１、８２１…第二取付部本体 ７２１ａ、８２１ａ…第二面 ７２２…凹部 ７２３…内側凸部 ７３…シール部材 ７３１…シール部材本体 ７３２…突起部 ７３２ａ…上面突起部 ７３２ｂ…下面突起部 ７３３…ガイド部 ７３３ａ…外側ガイド部 ７３３ｂ…内側ガイド部 ８１２…上方凹部 ８１３…規制凹部 ８１４…規制凸部 ８２２…下方凹部 ８３…第二シール部材 ８３１…第二シール部材本体 ８３２…第二突起部 ８３２ａ…第二上面突起部 ８３２ｂ…第二下面突起部 ８３３…第二ガイド部 ８３４…傘部 ５３…バッテリー室 ５３１…カバー装着穴部 ５３１ａ…蓋受け面 ５３２…バッテリー収容穴部 ５４…バッテリー室カバー ５４１…内蓋部 ５４２…外蓋部 ９１…内蓋取付部 ９１１…内蓋取付部本体 ９１２…内蓋凹部 ９２…外蓋取付部 ９２１…外蓋取付部本体 ９３…第三シール部材 ９３１…第三シール部材本体 ９３２…挿入部 ９３３…第三突起部 DESCRIPTION OF SYMBOLS 1 ... Scale 2 ... Weighing pan 21 ... Upper pan 22 ... Weighing pan main body 23 ... Weighing pan fixing | fixed part 3 ... Balance main body 4 ... 1st housing | casing 41 ... Top surface part 42 ... Front part 42a ... Display part 42b ... Operation button 43, 431 ... First outer peripheral portion 43a ... Inclined wall portion 43b, 431b ... First outer peripheral wall portion 5 ... Second housing 51 ... Bottom portion 51a ... Leg portion 52,521 ... Second outer peripheral portion 52b, 521b ... Second outer peripheral wall Part 6 ... Load cell 61 ... Weighing pan support 7, 8, 9 ... Seal structure 71, 81 ... First attachment part 711, 811 ... First attachment part body 711a, 811a, 911a ... First surface 712 ... Convex part 72, 82 ... Second mounting portion 721, 821 ... Second mounting portion main body 721a, 821a ... Second surface 722 ... Concave portion 723 ... Inner convex portion 73 ... Seal member 731 ... Seal member main body 732 ... Projection portion 732a ... Surface projection portion 732b ... Bottom projection portion 733 ... Guide portion 733a ... Outer guide portion 733b ... Inner guide portion 812 ... Upper recess portion 813 ... Restriction recess portion 814 ... Restriction projection portion 822 ... Lower recess portion 83 ... Second seal member 831 ... Second seal Member main body 832 ... 2nd projection part 832a ... 2nd upper surface projection part 832b ... 2nd lower surface projection part 833 ... 2nd guide part 834 ... Umbrella part 53 ... Battery chamber 531 ... Cover attachment hole 531a ... Lid receiving surface 532 ... Battery Accommodating hole 54 ... Battery chamber cover 541 ... Inner lid part 542 ... Outer lid part 91 ... Inner lid attaching part 911 ... Inner lid attaching part main body 912 ... Inner lid recessed part 92 ... Outer lid attaching part 921 ... Outer lid attaching part main body 93 ... Third seal member 931 ... Third seal member body 932 ... Insertion portion 933 ... Third protrusion

Claims (5)

第一部材と第二部材とを互いに組み付けて形成される筐体において、前記第一部材と前記第二部材との間を液密に閉塞するシール構造であって、
前記第一部材と前記第二部材との間に配置され、弾性変形可能なシール部材を備え、
前記シール部材は、前記第一部材または前記第二部材の少なくとも一方に形成される凹部に、頂点が接触するよう突出する突起部を有し、
前記第一部材は、凸部が形成される第一面を有し、
前記第二部材は、前記第一面と対向し、前記凹部が形成される第二面を有し、
前記シール部材は、前記凸部を覆うガイド部を有し、
前記突起部は、前記凸部及び前記凹部に向かってそれぞれ突出するシール構造。 In a housing formed by assembling the first member and the second member, a seal structure that liquid-tightly seals between the first member and the second member,
It is arranged between the first member and the second member, and comprises an elastically deformable seal member,
The seal member has a protrusion that protrudes so that the apex contacts the recess formed in at least one of the first member or the second member;
The first member has a first surface on which a convex portion is formed,
The second member has a second surface opposite to the first surface and formed with the recess.
The seal member has a guide portion that covers the convex portion,
The protruding portion has a sealing structure that protrudes toward the convex portion and the concave portion, respectively . 前記第一部材は、前記凹部の外で前記組み付け方向に沿って延びる案内面を有し、The first member has a guide surface extending along the assembly direction outside the recess,
前記シール部材は、前記案内面に沿って配置されるガイド部を有する請求項１に記載のシール構造。The seal structure according to claim 1, wherein the seal member has a guide portion disposed along the guide surface. 第一部材と第二部材とを互いに組み付けて形成される筐体において、前記第一部材と前記第二部材との間を液密に閉塞するシール構造であって、
前記第一部材と前記第二部材との間に配置され、弾性変形可能なシール部材を備え、
前記第一部材および前記第二部材の少なくとも一方は、前記組み付け方向に向けられた凹部を有し、
前記第一部材は、前記凹部の外で前記組み付け方向に沿って延びる案内面を有し、
前記シール部材は、前記案内面に沿って配置されるガイド部と、前記凹部に頂点が接触するように突出する突起部とを有し、
前記第一部材は、前記案内面を有する規制凹部が形成され、前記規制凹部から前記組み付け方向と交差する方向にずれた位置に第一面を有し、
前記第二部材は、前記第一面と対向し、前記凹部が形成される第二面を有し、
前記ガイド部は、前記規制凹部に挿入され、
前記突起部は、前記第一面に形成される前記凹部及び前記第二面に形成される前記凹部向かってそれぞれ突出するシール構造。 In a housing formed by assembling the first member and the second member, a seal structure that liquid-tightly seals between the first member and the second member,
It is arranged between the first member and the second member, and comprises an elastically deformable seal member,
At least one of the first member and the second member has a recess directed in the assembly direction,
The first member has a guide surface extending along the assembly direction outside the recess,
The seal member has a guide part arranged along the guide surface, and a protrusion part that protrudes so that a vertex contacts the concave part,
The first member is formed with a restriction recess having the guide surface, and has a first surface at a position shifted from the restriction recess in a direction intersecting the assembly direction.
The second member has a second surface opposite to the first surface and formed with the recess.
The guide portion is inserted into the restriction recess,
The protrusion is a seal structure that protrudes toward the recess formed on the first surface and the recess formed on the second surface. 前記シール部材は、
前記第一面及び前記第二面に当接するよう形成されるシール部材本体と、
前記第一部材と前記第二部材とが組み付けられた際に、前記第一部材の外周部の端面と前記第二部材の外周部の端面とを覆うように形成される傘部と、
を有する請求項３に記載のシール構造。 The sealing member is
A seal member body formed so as to contact the first surface and the second surface;
When the first member and the second member are assembled, an umbrella portion formed so as to cover the end surface of the outer peripheral portion of the first member and the end surface of the outer peripheral portion of the second member;
The seal structure according to claim 3 . 請求項１から請求項４のいずれか一項に記載のシール構造を備える電子機器。   An electronic device comprising the seal structure according to any one of claims 1 to 4.
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