JP6182352B2 - Plastic molded product - Google Patents

Plastic molded product Download PDF

Info

Publication number
JP6182352B2
JP6182352B2 JP2013095876A JP2013095876A JP6182352B2 JP 6182352 B2 JP6182352 B2 JP 6182352B2 JP 2013095876 A JP2013095876 A JP 2013095876A JP 2013095876 A JP2013095876 A JP 2013095876A JP 6182352 B2 JP6182352 B2 JP 6182352B2
Authority
JP
Japan
Prior art keywords
electromagnetic wave
wave shielding
molded product
shielding sheet
rib
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2013095876A
Other languages
Japanese (ja)
Other versions
JP2014216627A (en
Inventor
智志 榎田
智志 榎田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikyo Nishikawa Corp
Original Assignee
Daikyo Nishikawa Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daikyo Nishikawa Corp filed Critical Daikyo Nishikawa Corp
Priority to JP2013095876A priority Critical patent/JP6182352B2/en
Publication of JP2014216627A publication Critical patent/JP2014216627A/en
Application granted granted Critical
Publication of JP6182352B2 publication Critical patent/JP6182352B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

本発明は、電磁波遮蔽性を持った樹脂成形品に関するものである。   The present invention relates to a resin molded product having electromagnetic wave shielding properties.

従来より、例えば電気自動車やハイブリッド自動車には、走行用モーターに電力を供給するための走行用バッテリーが設けられている。この走行用バッテリーを収容するケースとしては、金属製のものもあるが、軽量化の観点から樹脂製のものが使用されることがある（例えば、特許文献１参照）。   Conventionally, for example, an electric vehicle or a hybrid vehicle is provided with a traveling battery for supplying electric power to the traveling motor. As a case for storing the battery for traveling, there is a metal case, but a resin case may be used from the viewpoint of weight reduction (for example, see Patent Document 1).

バッテリーケースを樹脂製とした場合には、充放電時にバッテリー付近から発生する電磁波が外部に漏れないように遮蔽する必要がある。このことに対して、特許文献１ではケース本体と蓋の内側に複数枚の電磁波遮蔽シートを貼り付けるようにしている。電磁波遮蔽シートの繋ぎ部分の処理は、端部同士を突き合わせたり、端部同士を厚み方向に重ねたりしている。   When the battery case is made of resin, it is necessary to shield the electromagnetic wave generated from the vicinity of the battery during charging / discharging so as not to leak outside. In contrast, in Patent Document 1, a plurality of electromagnetic shielding sheets are attached to the inside of the case body and the lid. The process of the connection part of an electromagnetic wave shielding sheet has faced each other or overlapped the edges in the thickness direction.

特開２０１２−１８６１２５号公報JP 2012-186125 A

ところで、特許文献１のバッテリーケースのような樹脂成形品においては、重量物を収容するとともに、車両走行時の振動等が発生するので、十分な強度の確保が必要である。このことに対し、特許文献１では、高密度ポリエチレンやポリカーボネート等の耐衝撃性樹脂を用いて成形しているが、これらを用いたとしても、強度を高めるためには肉厚を厚くしなければならず、軽量化の妨げになる。   By the way, in the resin molded product such as the battery case of Patent Document 1, it is necessary to secure a sufficient strength because it accommodates heavy objects and generates vibrations when the vehicle travels. In contrast, in Patent Document 1, molding is performed using an impact-resistant resin such as high-density polyethylene or polycarbonate, but even if these are used, the thickness must be increased in order to increase the strength. It becomes an obstacle to weight reduction.

そこで、樹脂成形品にリブ状の突出部を形成して全体的に薄肉化を図って軽量にしながら、十分な強度を確保することが考えられる。しかしながら、特許文献１では、電磁波遮蔽シートの端部同士を突き合わせたり、端部同士を重ねたりすることによって電磁波遮蔽シートの繋ぎ部分の処理を行っているので、突出部が形成された場合に、その突出部に対して電磁波遮蔽シートをどのようにして貼り付けるかが問題となる。   Therefore, it is conceivable to ensure sufficient strength while forming rib-like protrusions on the resin molded product to reduce the overall thickness and weight. However, in Patent Document 1, since the end portions of the electromagnetic wave shielding sheet are abutted with each other, or the joining portions of the electromagnetic wave shielding sheets are processed by overlapping the end portions, when the protruding portion is formed, The problem is how to attach the electromagnetic wave shielding sheet to the protruding portion.

本発明は、かかる点に鑑みてなされたものであり、その目的とするところは、リブ状の突出部を形成した樹脂成形品に複数枚の電磁波遮蔽シートを配設して電磁波の遮蔽性を持たせる場合に、これら電磁波遮蔽シートを電磁波の漏れがないように配設することにある。   The present invention has been made in view of such points, and the object of the present invention is to provide electromagnetic shielding properties by arranging a plurality of electromagnetic shielding sheets on a resin molded product having rib-shaped protrusions. In the case of holding them, the electromagnetic wave shielding sheets are arranged so as not to leak electromagnetic waves.

上記目的を達成するために、本発明では、電磁波遮蔽シートを成形品本体の板状部に沿うように配設し、この電磁波遮蔽シートの端部は、板状部から突出する突出部の側面に沿うように配設した。   In order to achieve the above object, in the present invention, an electromagnetic wave shielding sheet is disposed along the plate-like portion of the molded product body, and the end portion of the electromagnetic wave shielding sheet is a side surface of the protruding portion protruding from the plate-like portion. It arranged so that.

第１の発明は、樹脂材を成形してなるとともに、板状部と、該板状部から突出する突出部とが設けられた射出成形品からなる成形品本体と、
上記成形品本体に配設される複数枚の電磁波遮蔽シートとを備えた樹脂成形品において、
上記電磁波遮蔽シートは上記板状部に沿って配設されるとともに上記成形品本体にインサート成形されており、該電磁波遮蔽シートの端部は、上記突出部の突出方向に沿うように配設され、
上記成形品本体の上記突出部内部には、上記成形品本体の成形時に上記電磁波遮蔽シートを所定位置で保持するための保持部材が埋め込まれていることを特徴とする。 According to a first aspect of the present invention, there is provided a molded product body made of an injection-molded product provided with a plate-shaped portion and a protruding portion protruding from the plate-shaped portion, and formed by molding a resin material.
In a resin molded product comprising a plurality of electromagnetic wave shielding sheets disposed in the molded product body,
The electromagnetic shielding sheet is insert-molded in Rutotomoni the molding body is arranged along the plate-like portion, the end portion of the electromagnetic shielding sheet is disposed along the projecting direction of the projecting portion ,
A holding member for holding the electromagnetic wave shielding sheet at a predetermined position when the molded product body is molded is embedded in the protruding portion of the molded product body .

この構成によれば、突出部の形成により成形品本体が補強されるので、樹脂成形品が軽量、かつ、高強度なものとなる。そして、電磁波遮蔽シートが成形品本体の板状部に沿うように配設されているので、成形品本体の板状部からの電磁波の漏れが防止される。また、電磁波遮蔽シートの端部が突出部に沿っているので、板状部に対して立ち上がるように配設されることになる。電磁波遮蔽シートの立ち上がっている部分に電磁波が当たることで突出部からの電磁波の漏れが防止される。   According to this configuration, since the molded product main body is reinforced by the formation of the protruding portion, the resin molded product is lightweight and has high strength. And since the electromagnetic wave shielding sheet is arrange | positioned so that the plate-shaped part of a molded article main body may be followed, the leakage of the electromagnetic waves from the plate-shaped part of a molded article main body is prevented. Moreover, since the edge part of an electromagnetic wave shielding sheet is along a protrusion part, it will be arrange | positioned so that it may stand up with respect to a plate-shaped part. The electromagnetic wave is prevented from leaking from the protruding portion by the electromagnetic wave hitting the rising part of the electromagnetic wave shielding sheet.

また、電磁波遮蔽シートを成形品本体に接着する作業を別途行わなくても、電磁波遮蔽シートを成形品本体の成形時に同時に一体化することが可能になる。 Further , the electromagnetic wave shielding sheet can be integrated at the same time when the molded product body is molded, without separately performing an operation of bonding the electromagnetic wave shielding sheet to the molded product body.

また、成形品本体の成形時に、金型内における突出部を成形する部位に電磁波遮蔽シートを配置した状態で、保持部材によって電磁波遮蔽シートが所定位置に保持される。これにより、樹脂材の流動による電磁波遮蔽シートの位置ずれが抑制されるので、電磁波遮蔽シートの端部を突出部に沿うように確実に配設することが可能になる。 Moreover , at the time of shaping | molding of a molded article main body, an electromagnetic wave shielding sheet is hold | maintained in a predetermined position by the holding member in the state which has arrange | positioned the electromagnetic wave shielding sheet in the site | part which shape | molds the protrusion part in a metal mold | die. Thereby, since the position shift of the electromagnetic wave shielding sheet due to the flow of the resin material is suppressed, it is possible to reliably arrange the end portion of the electromagnetic wave shielding sheet along the protruding portion.

第２の発明は、第１の発明において、上記成形品本体は、コーナー部を有する箱体であり、上記電磁波遮蔽シートは、上記コーナー部にも配設されており、上記成形品本体には、上記コーナー部に対応する部位に、上記電磁波遮蔽シートの余長分を吸収するための余長吸収部が設けられていることを特徴とする。 According to a second invention, in the first invention, the molded product main body is a box having a corner portion, and the electromagnetic wave shielding sheet is also disposed in the corner portion. The surplus length absorbing portion for absorbing the surplus length of the electromagnetic wave shielding sheet is provided at a portion corresponding to the corner portion.

この構成によれば、電磁波遮蔽シートを立体形状にあらかじめ成形していなくても、平坦な電磁波遮蔽シートを成形品本体のコーナー部に沿うように変形させることでコーナー部に配設することが可能になる。このときにできた電磁波遮蔽シートの余長分が成形品本体の余長吸収部によって吸収される。   According to this configuration, even if the electromagnetic wave shielding sheet is not molded into a three-dimensional shape in advance, the flat electromagnetic wave shielding sheet can be disposed at the corner portion by being deformed along the corner portion of the molded product body. become. The extra length of the electromagnetic shielding sheet formed at this time is absorbed by the extra length absorbing portion of the molded product body.

第１の発明によれば、電磁波遮蔽シートを成形品本体の板状部に沿って配設し、電磁波遮蔽シートの端部を成形品本体の突出部に沿うよう配設したので、樹脂成形品に複数枚の電磁波遮蔽シートを配設して電磁波の遮蔽性を持たせる場合に、電磁波が漏れないようにすることができる。   According to the first invention, the electromagnetic wave shielding sheet is disposed along the plate-like portion of the molded product body, and the end portion of the electromagnetic wave shielding sheet is disposed along the protruding portion of the molded product body. In the case where a plurality of electromagnetic wave shielding sheets are provided to provide electromagnetic wave shielding properties, the electromagnetic wave can be prevented from leaking.

また、電磁波遮蔽シートを成形品本体にインサート成形したので、電磁波遮蔽シートの接着作業を不要にしながら、電磁波遮蔽シートを成形品本体と一体化することができる。 Moreover , since the electromagnetic wave shielding sheet is insert-molded into the molded product body, the electromagnetic wave shielding sheet can be integrated with the molded product body while eliminating the need for bonding the electromagnetic wave shielding sheet.

また、成形品本体の成形時に電磁波遮蔽シートを所定位置で保持するための保持部材を突出部内部に埋め込むようにしたので、電磁波遮蔽シートの端部を突出部に沿うように確実に配設することができ、電磁波の漏れを防止できる。 In addition , since the holding member for holding the electromagnetic wave shielding sheet at a predetermined position is embedded in the protruding portion when the molded product body is molded, the end portion of the electromagnetic wave shielding sheet is surely disposed along the protruding portion. And leakage of electromagnetic waves can be prevented.

第２の発明によれば、平坦な電磁波遮蔽シートを成形品本体のコーナー部に沿うように変形させてコーナー部に配設する場合に、電磁波遮蔽シートの余長分が成形品本体の余長吸収部によって吸収されるので、あらかじめ立体形状に成形された高コストの電磁波遮蔽シートを用意することなく、平坦で安価な電磁波遮蔽シートを用いることができ、低コスト化を図ることができる。 According to the second invention, when the flat electromagnetic shielding sheet is deformed along the corner portion of the molded product body and disposed at the corner portion, the extra length of the electromagnetic shielding sheet is the extra length of the molded product body. Since it is absorbed by the absorbing portion, a flat and inexpensive electromagnetic wave shielding sheet can be used without preparing a high-cost electromagnetic wave shielding sheet previously formed into a three-dimensional shape, and the cost can be reduced.

参考例１に係る樹脂成形品で構成されたバッテリーケースの側面図である。It is a side view of the battery case comprised with the resin molded product which concerns on the reference example 1. FIG. バッテリーケースの平面図である。It is a top view of a battery case. 樹脂成形品の斜視図である。It is a perspective view of a resin molded product. 図２におけるIV−IV線断面図である。It is the IV-IV sectional view taken on the line in FIG. 樹脂成形品を成形する金型に電磁波遮蔽シートをセットした状態を示す断面図である。It is sectional drawing which shows the state which set the electromagnetic wave shielding sheet to the metal mold | die which shape | molds a resin molded product. 金型を型閉じ状態にした状態の図５相当図である。FIG. 6 is a view corresponding to FIG. 5 in a state in which the mold is closed. 溶融樹脂をキャビティに射出した状態の図５相当図である。FIG. 6 is a view corresponding to FIG. 5 in a state where molten resin is injected into the cavity. 実施形態に係る図４相当図である。FIG. 5 is a view corresponding to FIG. 4 according to the embodiment . 実施形態に係る図５相当図である。FIG. 6 is a view corresponding to FIG. 5 according to the embodiment . （ａ）は保持部材の斜視図であり、（ｂ）は保持部材の平面図である。(A) is a perspective view of a holding member, (b) is a top view of a holding member. （ａ）は参考例２に係る図４相当図でインサート成形品の断面図であり、（ｂ）は該インサート成形品に電磁波遮蔽シートを貼り付けた状態を示す断面図である。(A) is sectional drawing of an insert molded product in FIG. 4 equivalent figure which concerns on the reference example 2, (b) is sectional drawing which shows the state which affixed the electromagnetic wave shielding sheet on this insert molded product. 参考例３に係る図４相当図である。FIG. 5 is a view corresponding to FIG. 4 according to Reference Example 3. 参考例４に係る図３相当図である。FIG. 6 is a view corresponding to FIG. 3 according to Reference Example 4. 参考例５に係る樹脂成形品を開放側から見た斜視図である。It is the perspective view which looked at the resin molded product which concerns on the reference example 5 from the open side. 参考例６に係る図３相当図である。FIG. 9 is a view corresponding to FIG. 3 according to Reference Example 6. 参考例７に係る図６相当図である。FIG. 7 is a view corresponding to FIG. 6 according to Reference Example 7. 参考例８に係る図４相当図である。FIG. 9 is a diagram corresponding to FIG. 4 according to Reference Example 8. 実施形態の変形例に係る図６相当図である。FIG. 7 is a diagram corresponding to FIG. 6 according to a modified example of the embodiment. 実施形態の変形例の保持部材の斜視図である。It is a perspective view of the holding member of the modification of an embodiment.

以下、本発明の実施形態を図面に基づいて詳細に説明する。尚、以下の好ましい実施形態の説明は、本質的に例示に過ぎず、本発明、その適用物或いはその用途を制限することを意図するものではない。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

図１は、参考例１に係る樹脂成形品１で構成されたバッテリーケースＡの側面図であり、図２はバッテリーケースＡの平面図である。バッテリーケースＡは、例えば電気自動車やハイブリッド自動車等に搭載される走行用バッテリー（図示せず）を収容する大型のものである。自動車の種類としては、例えば乗用車やトラック等である。 FIG. 1 is a side view of a battery case A composed of a resin molded product 1 according to Reference Example 1 , and FIG. 2 is a plan view of the battery case A. The battery case A is a large case that accommodates a traveling battery (not shown) mounted on, for example, an electric vehicle or a hybrid vehicle. Examples of the type of automobile include a passenger car and a truck.

バッテリーケースＡは、２つの樹脂成形品１，１を上下に組み合わせて構成される。下側の樹脂成形品１は、全体として上方に開放する凹状に形成され、この内部に走行用バッテリーが収容される。上側の樹脂成形品１は、全体として下方に開放する凹状に形成され、下側の樹脂成形品１の開放部分を上方から覆うように構成されている。上側及び下側の樹脂成形品１，１は、略同じ構造及び形状であるため、以下、上側の樹脂成形品１について説明する。   The battery case A is configured by combining two resin molded products 1 and 1 vertically. The lower resin molded product 1 is formed in a concave shape that opens upward as a whole, and a traveling battery is accommodated therein. The upper resin molded product 1 is formed in a concave shape that opens downward as a whole, and is configured to cover an open portion of the lower resin molded product 1 from above. Since the upper and lower resin molded products 1 and 1 have substantially the same structure and shape, the upper resin molded product 1 will be described below.

図３にも示すように、樹脂成形品１は、樹脂材を矩形箱状に射出成形してなる成形品本体１０と、成形品本体１０に配設される第１〜第７電磁波遮蔽シートＳ１〜Ｓ７（図４にも示す）とを備えている。成形品本体１０は、４つのコーナー部１０ａを有する矩形箱体であり、バッテリーケースＡの上壁部となる板状部１１と、板状部１１の周縁部から下方へ延びる周壁部１２と、第１〜第３リブ２１〜２３（突出部）と、複数のコーナーリブ２４，２５，２６とで構成されている。成形品本体１０を構成する樹脂材は、特に限定されるものではなく、各種樹脂材を使用することができる。   As shown in FIG. 3, the resin molded product 1 includes a molded product body 10 formed by injection molding a resin material in a rectangular box shape, and first to seventh electromagnetic wave shielding sheets S <b> 1 disposed in the molded product body 10. To S7 (also shown in FIG. 4). The molded product body 10 is a rectangular box having four corner portions 10a, a plate-like portion 11 serving as an upper wall portion of the battery case A, a peripheral wall portion 12 extending downward from the peripheral edge portion of the plate-like portion 11, and The first to third ribs 21 to 23 (protruding portions) and a plurality of corner ribs 24, 25, and 26 are configured. The resin material which comprises the molded article main body 10 is not specifically limited, Various resin materials can be used.

板状部１１は、矩形状であり、略平坦に形成されている。周壁部１２は、下側へ行くほど樹脂成形品１の外方に位置するように傾斜している。周壁部１２の下縁部には、樹脂成形品１の外方に延出して該周壁部１２の全周に亘って延びるフランジ１２ａが形成されている。   The plate-like portion 11 has a rectangular shape and is formed substantially flat. The peripheral wall part 12 inclines so that it may be located in the outer side of the resin molded product 1 so that it goes below. A flange 12 a is formed on the lower edge portion of the peripheral wall portion 12 so as to extend outward from the resin molded product 1 and extend over the entire periphery of the peripheral wall portion 12.

第１リブ２１は、図１や図２に示すように、成形品本体１０の長手方向（左右方向）中央部よりも右側寄りに位置している。第２リブ２２は、成形品本体１０の長手方向中央部に位置している。第３リブ２３は、成形品本体１０の長手方向中央部よりも左側寄りに位置している。   As shown in FIG. 1 and FIG. 2, the first rib 21 is located on the right side of the central part in the longitudinal direction (left-right direction) of the molded product body 10. The second rib 22 is located at the center in the longitudinal direction of the molded product body 10. The third rib 23 is located closer to the left than the longitudinal center of the molded product body 10.

第１リブ２１は、周壁部１２の両外側面からそれぞれ成形品本体１０の外方へ突出して該周壁部１２の上下方向に延びる一対の第１側部リブ２１ａ、２１ａと、板状部１１の外面から成形品本体１０の外方（上方）へ突出して成形品本体１０の長手方向と直交する方向に延びる第１上面リブ２１ｂとで構成されている。第１側部リブ２１ａの下端は、フランジ１２ａに連なっている。また、第１上面リブ２１ｂの両端部は、第１側部リブ２１ａ、２１ａの上端部に連なっている。従って、第１リブ２１は、周壁部１２の一方の外側面から板状部１１の外面、周壁部１２の他方の外側面に亘って連続した１つのリブとなっている。   The first ribs 21 protrude from the outer side surfaces of the peripheral wall portion 12 to the outside of the molded product body 10 and extend in the vertical direction of the peripheral wall portion 12, and the plate-like portion 11. The first upper surface rib 21b extends outward (upward) from the outer surface of the molded product body 10 and extends in a direction orthogonal to the longitudinal direction of the molded product body 10. The lower end of the first side rib 21a is continuous with the flange 12a. Further, both end portions of the first upper surface rib 21b are connected to upper end portions of the first side ribs 21a and 21a. Accordingly, the first rib 21 is a single rib that extends from one outer surface of the peripheral wall portion 12 to the outer surface of the plate-like portion 11 and the other outer surface of the peripheral wall portion 12.

第２リブ２２及び第３リブ２３は第１リブ２１と同じ形状であり、第２リブ２２は第２側部リブ２２ａ、２２ａと第２上面リブ２２ｂとで構成され、また、第３リブ２３は第３側部リブ２３ａ、２３ａと第３上面リブ２３ｂとで構成されている。第１〜第３リブ２１〜２３は、板状部１１及び周壁部１２を成形する際に同時に一体成形されたものである。   The second rib 22 and the third rib 23 have the same shape as the first rib 21, and the second rib 22 includes second side ribs 22 a and 22 a and a second upper surface rib 22 b, and the third rib 23 Consists of third side ribs 23a, 23a and a third upper surface rib 23b. The first to third ribs 21 to 23 are integrally formed at the same time when the plate-like portion 11 and the peripheral wall portion 12 are formed.

第１〜第３リブ２１〜２３を形成することで、成形品本体１０の板状部１１や周壁部１２の肉厚を厚くしなくても成形品本体１０の強度を向上できるので、軽量、かつ、高剛性な成形品本体１０を得ることができる。特に、第１〜第３リブ２１〜２３の第１〜第３側部リブ２１ａ〜２３ａがフランジ１２ａに連なっていることで、フランジ１２ａの剛性も高めることが可能になっている。さらに、第１〜第３リブ２１〜２３は、成形品本体１０の板状部１１と周壁部１２とに一体化しているので、板状部１１と周壁部１２とが第１〜第３リブ２１〜２３により連結されることになり、成形品本体１０の剛性をより一層高めることができる。   By forming the first to third ribs 21 to 23, the strength of the molded product body 10 can be improved without increasing the thickness of the plate-like portion 11 and the peripheral wall portion 12 of the molded product body 10. And the highly rigid molded product main body 10 can be obtained. In particular, since the first to third side ribs 21a to 23a of the first to third ribs 21 to 23 are connected to the flange 12a, the rigidity of the flange 12a can be increased. Furthermore, since the 1st-3rd ribs 21-23 are integrated in the plate-shaped part 11 and the surrounding wall part 12 of the molded article main body 10, the plate-shaped part 11 and the surrounding wall part 12 are the 1st-3rd rib. It will be connected by 21-23, and the rigidity of the molded article main body 10 can be improved further.

３つのコーナーリブ２４，２５，２６は１組とされ、成形品本体１０の４つのコーナー部１０ａにそれぞれ設けられている。各コーナーリブ２４は、各コーナー部１０ａ近傍において成形品本体１０の側面から成形品本体１０の外方へ突出して上下方向に延びている。各コーナーリブ２５は、各コーナー部１０ａから対角線の延長方向に突出して上下方向に延びている。各コーナーリブ２６は、各コーナー部１０ａ近傍において成形品本体１０の端面から成形品本体１０の外方へ突出して上下方向に延びている。つまり、コーナーリブ２４，２５，２６は、成形品本体１０のコーナー部１０ａにおいて放射状に突出している。   The three corner ribs 24, 25, and 26 are made into one set, and are respectively provided at the four corner portions 10 a of the molded product body 10. Each corner rib 24 protrudes from the side surface of the molded product body 10 to the outside of the molded product body 10 in the vicinity of each corner portion 10a and extends in the vertical direction. Each corner rib 25 protrudes from each corner portion 10a in the diagonal direction and extends in the vertical direction. Each corner rib 26 protrudes from the end surface of the molded product body 10 to the outside of the molded product body 10 in the vicinity of each corner portion 10a and extends in the vertical direction. That is, the corner ribs 24, 25, 26 protrude radially at the corner portion 10 a of the molded product body 10.

コーナーリブ２４，２５，２６の下端部は、フランジ１２ａに連なっている。また、コーナーリブ２４，２５，２６の上端部は、周壁部１２の上端部に位置している。また、コーナーリブ２４，２５，２６は、上側へ行くほど成形品本体１０からの突出量が少なくなっている。上記コーナーリブ２４，２５，２６を設けることにより、成形品本体１０のコーナー部１０ａ近傍の強度がより一層向上している。   The lower ends of the corner ribs 24, 25, 26 are connected to the flange 12a. Further, the upper end portions of the corner ribs 24, 25, 26 are located at the upper end portion of the peripheral wall portion 12. Further, the corner ribs 24, 25, and 26 have a smaller amount of protrusion from the molded product body 10 as they go upward. By providing the corner ribs 24, 25, 26, the strength in the vicinity of the corner portion 10 a of the molded product body 10 is further improved.

尚、この参考例１では、各コーナー部１０ａに３つのコーナーリブ２４，２５，２６を設けているが、これに限らず、図示しないが、コーナーリブ２４，２５，２６のうち、任意の１つ又は２つを設けてもよいし、各コーナー部１０ａに４つ以上のコーナーリブを設けてもよい。 In the reference example 1 , three corner ribs 24, 25, and 26 are provided in each corner portion 10a. However, the present invention is not limited to this, and although not shown, any one of the corner ribs 24, 25, and 26 is selected. One or two may be provided, and four or more corner ribs may be provided in each corner portion 10a.

第１〜第７電磁波遮蔽シートＳ１〜Ｓ７は、従来から電磁波遮蔽用として使用されているものを用いることができるので、詳細な説明は省略するが、例えばアルミニウム薄膜を薄い樹脂材で挟んだシートを使用することができる。第１〜第７電磁波遮蔽シートＳ１〜Ｓ７を構成する樹脂は、成形品本体１０の樹脂と同質のものが好ましい。例えば、ポリプロピレン樹脂やポリアミド樹脂を用いることができる。また、第１〜第７電磁波遮蔽シートＳ１〜Ｓ７としては、フィルム状のものを用いることもできる。第１〜第７電磁波遮蔽シートＳ１〜Ｓ７がメッシュ状のものや繊維状のものであってもよい。また、それらを組み合わせてもよい。   As the first to seventh electromagnetic wave shielding sheets S1 to S7, those conventionally used for electromagnetic wave shielding can be used, and detailed description thereof is omitted. For example, a sheet in which an aluminum thin film is sandwiched between thin resin materials Can be used. The resin constituting the first to seventh electromagnetic wave shielding sheets S <b> 1 to S <b> 7 is preferably the same as the resin of the molded product body 10. For example, a polypropylene resin or a polyamide resin can be used. Moreover, as a 1st-7th electromagnetic wave shielding sheet S1-S7, a film-form thing can also be used. The first to seventh electromagnetic wave shielding sheets S1 to S7 may be mesh or fibrous. Moreover, you may combine them.

第１〜第７電磁波遮蔽シートＳ１〜Ｓ７は、例えば幅が０．５ｍ程度の長尺帯状の電磁波遮蔽シートを裁断して得られたものであり、従って、平坦な形状となっている。また、第１〜第７電磁波遮蔽シートＳ１〜Ｓ７は、成形品本体１０の成形時に、その金型のキャビティ内で保持された状態で成形品本体１０と同時に成形されるもの、即ち、インサート成形されるものである。   The first to seventh electromagnetic wave shielding sheets S1 to S7 are obtained, for example, by cutting an elongated electromagnetic wave shielding sheet having a width of about 0.5 m, and thus have a flat shape. Further, the first to seventh electromagnetic wave shielding sheets S1 to S7 are formed simultaneously with the molded product body 10 while being held in the mold cavity when the molded product body 10 is molded, that is, insert molding. It is what is done.

図１や図２に示すように、第１〜第４電磁波遮蔽シートＳ１〜Ｓ４は、成形品本体１０の外面において右側から左側に順に配設される。第１電磁波遮蔽シートＳ１は、成形品本体１０のフランジ１２ａの上面の右側から周壁部１２の外面、板状部１１の外面、第１リブ２１に亘って配設されている。図４に示すように、第１電磁波遮蔽シートＳ１の左端部は、第１リブ２１の突出方向に沿って右側面に配設されており、その先端部は第１リブ２１の右側面において第１リブ２１の高さ方向中間部に位置している。   As shown in FIGS. 1 and 2, the first to fourth electromagnetic wave shielding sheets S <b> 1 to S <b> 4 are disposed in order from the right side to the left side on the outer surface of the molded product body 10. The first electromagnetic wave shielding sheet S <b> 1 is disposed from the right side of the upper surface of the flange 12 a of the molded product body 10 to the outer surface of the peripheral wall portion 12, the outer surface of the plate-like portion 11, and the first rib 21. As shown in FIG. 4, the left end portion of the first electromagnetic wave shielding sheet S <b> 1 is disposed on the right side surface along the protruding direction of the first rib 21, and the tip portion thereof is the first side surface on the right side surface of the first rib 21. 1 rib 21 is located in the middle in the height direction.

第１電磁波遮蔽シートＳ１は、平坦であるため、成形品本体１０のコーナー部１０ａに沿わせて曲げていくと、コーナー部１０ａに対応する部分に余長分が生じ、これがシワとなる。第１電磁波遮蔽シートＳ１におけるコーナー部１０ａ近傍に生じた余長分は、コーナーリブ２４，２５，２６の成形時に、コーナーリブ２４，２５，２６に沿うように配設されて吸収される。つまり、コーナーリブ２４，２５，２６は、第１電磁波遮蔽シートＳ１の余長分を吸収するための余長吸収部である。コーナーリブ２４，２５，２６の突出高さ及び厚みは、第１電磁波遮蔽シートＳ１の余長分の長さに対応するように設定すればよい。   Since the first electromagnetic wave shielding sheet S1 is flat, if the first electromagnetic wave shielding sheet S1 is bent along the corner portion 10a of the molded product body 10, an extra length is generated in a portion corresponding to the corner portion 10a, which is wrinkled. The extra length generated in the vicinity of the corner portion 10a in the first electromagnetic wave shielding sheet S1 is disposed and absorbed along the corner ribs 24, 25, 26 when the corner ribs 24, 25, 26 are formed. That is, the corner ribs 24, 25, and 26 are surplus length absorbing portions for absorbing the surplus length of the first electromagnetic wave shielding sheet S1. What is necessary is just to set the protrusion height and thickness of the corner ribs 24, 25, 26 so as to correspond to the length of the extra length of the first electromagnetic wave shielding sheet S1.

また、第２電磁波遮蔽シートＳ２は、成形品本体１０の第１リブ２１の左側面から板状部１１の外面、第２リブ２２の右側面に亘って配設されている。第２電磁波遮蔽シートＳ２の右端部は、第１リブ２１の突出方向に沿って左側面に配設されており、その先端部は第１リブ２１の左側面において第１リブ２１の高さ方向中間部に位置している。第２電磁波遮蔽シートＳ２の左端部は、図示しないが、第２リブ２２の右側面に沿うように配設されており、先端部は第２リブ２２の右側面において第２リブ２２の高さ方向中間部に位置している。   Further, the second electromagnetic wave shielding sheet S <b> 2 is disposed from the left side surface of the first rib 21 of the molded product body 10 to the outer surface of the plate-like portion 11 and the right side surface of the second rib 22. The right end portion of the second electromagnetic wave shielding sheet S <b> 2 is disposed on the left side surface along the protruding direction of the first rib 21, and the front end portion is the height direction of the first rib 21 on the left side surface of the first rib 21. Located in the middle. Although not shown, the left end portion of the second electromagnetic wave shielding sheet S <b> 2 is disposed along the right side surface of the second rib 22, and the tip portion is the height of the second rib 22 on the right side surface of the second rib 22. Located in the middle of the direction.

また、第３電磁波遮蔽シートＳ３は、成形品本体１０の第２リブ２２の左側面から板状部１１の外面、第３リブ２３の右側面に亘って配設されている。第３電磁波遮蔽シートＳ３の右端部は、第２リブ２２の左側面に沿うように配設されており、その先端部は第２リブ２２の左側面において第２リブ２２の高さ方向中間部に位置している。第３電磁波遮蔽シートＳ３の左端部は、図示しないが、第３リブ２３の右側面に沿うように配設されており、先端部は第３リブ２３の右側面において第３リブ２３の高さ方向中間部に位置している。   The third electromagnetic wave shielding sheet S <b> 3 is disposed from the left side surface of the second rib 22 of the molded product body 10 to the outer surface of the plate-like portion 11 and the right side surface of the third rib 23. The right end portion of the third electromagnetic wave shielding sheet S3 is disposed along the left side surface of the second rib 22, and the front end portion thereof is the middle portion in the height direction of the second rib 22 on the left side surface of the second rib 22. Is located. Although not shown, the left end portion of the third electromagnetic wave shielding sheet S <b> 3 is disposed along the right side surface of the third rib 23, and the tip portion is the height of the third rib 23 on the right side surface of the third rib 23. Located in the middle of the direction.

また、第４電磁波遮蔽シートＳ４は、成形品本体１０の第３リブ２３の左側面から板状部１１の外面、フランジ１２ａの上面の左側に亘って配設されている。第４電磁波遮蔽シートＳ４の右端部は、第３リブ２３の左側面に沿うように配設されており、その先端部は第３リブ２３の左側面において第３リブ２３の高さ方向中間部に位置している。第４電磁波遮蔽シートＳ４もコーナー部１０ａに沿うように曲げるので余分ができる。第４電磁波遮蔽シートＳ４におけるコーナー部１０ａ近傍に生じた余長分も、コーナーリブ２４，２５，２６の成形時に、コーナーリブ２４，２５，２６によって吸収される。   The fourth electromagnetic wave shielding sheet S4 is disposed from the left side surface of the third rib 23 of the molded product body 10 to the outer surface of the plate-like portion 11 and the left side of the upper surface of the flange 12a. The right end portion of the fourth electromagnetic wave shielding sheet S4 is disposed along the left side surface of the third rib 23, and the front end portion thereof is the middle portion in the height direction of the third rib 23 on the left side surface of the third rib 23. Is located. Since the fourth electromagnetic wave shielding sheet S4 is also bent along the corner portion 10a, an extra portion can be made. The extra length generated in the vicinity of the corner portion 10a in the fourth electromagnetic wave shielding sheet S4 is also absorbed by the corner ribs 24, 25, 26 when the corner ribs 24, 25, 26 are formed.

この参考例１では、樹脂成形品１が大型で、１枚の電磁波遮蔽シートで成形品本体１０の全体を覆うことができないので、長尺帯状のシート材を裁断した第１〜第４電磁波遮蔽シートＳ１〜Ｓ４によって成形品本体１０の略全体を覆うようにしている。このようにする場合には、第１〜第４電磁波遮蔽シートＳ１〜Ｓ４のつなぎ目部分ができることになるが、このつなぎ目部分に第１〜第３リブ２１〜２３を形成している。 In Reference Example 1 , since the resin molded product 1 is large and cannot cover the entire molded product main body 10 with a single electromagnetic wave shielding sheet, the first to fourth electromagnetic wave shields obtained by cutting a long strip-shaped sheet material. The sheet S1 to S4 are configured to cover substantially the entire molded product body 10. When doing in this way, although the joint part of 1st-4th electromagnetic wave shielding sheet S1-S4 will be made, the 1st-3rd ribs 21-23 are formed in this joint part.

この参考例１では、第１〜第４電磁波遮蔽シートＳ１〜Ｓ４のつなぎ目部分に対応するように第１〜第３リブ２１〜２３を設けている。電磁波遮蔽シートが３枚の場合にはリブは２つでよく、また、電磁波遮蔽シートが２枚の場合にはリブは１つでよい。つまり、リブの数は、電磁波遮蔽シートの数から１を引いた数であればよい。 In the reference example 1 , the first to third ribs 21 to 23 are provided so as to correspond to the joint portions of the first to fourth electromagnetic wave shielding sheets S1 to S4. When there are three electromagnetic shielding sheets, the number of ribs may be two, and when there are two electromagnetic shielding sheets, only one rib may be required. That is, the number of ribs may be a number obtained by subtracting 1 from the number of electromagnetic wave shielding sheets.

図４に示すように、第５電磁波遮蔽シートＳ５は、第１リブ２１を、第１電磁波遮蔽シートＳ１の左端部及び第２電磁波遮蔽シートＳ２の右端部と共に覆うように配設される。すなわち、第５電磁波遮蔽シートＳ５は、第１リブ２１の基端部近傍から右側面に沿って第１リブ２１の先端部まで延びた後、第１リブ２１の左側面に沿って基端部近傍まで延びている。これにより、第１リブ２１の基端部近傍を含めた全体が第５電磁波遮蔽シートＳ５によって覆われることになる。また、第５電磁波遮蔽シートＳ５は、第１電磁波遮蔽シートＳ１の左端部及び第２電磁波遮蔽シートＳ２の右端部に対し厚み方向に重なるので、第１電磁波遮蔽シートＳ１、第２電磁波遮蔽シートＳ２及び第５電磁波遮蔽シートＳ５の間に隙間が形成されることはない。   As shown in FIG. 4, the fifth electromagnetic wave shielding sheet S5 is disposed so as to cover the first rib 21 together with the left end portion of the first electromagnetic wave shielding sheet S1 and the right end portion of the second electromagnetic wave shielding sheet S2. That is, the fifth electromagnetic wave shielding sheet S5 extends from the vicinity of the proximal end portion of the first rib 21 to the distal end portion of the first rib 21 along the right side surface, and then the proximal end portion along the left side surface of the first rib 21. It extends to the vicinity. Thereby, the whole including the vicinity of the base end portion of the first rib 21 is covered with the fifth electromagnetic wave shielding sheet S5. Further, the fifth electromagnetic wave shielding sheet S5 overlaps in the thickness direction with respect to the left end portion of the first electromagnetic wave shielding sheet S1 and the right end portion of the second electromagnetic wave shielding sheet S2, so that the first electromagnetic wave shielding sheet S1 and the second electromagnetic wave shielding sheet S2 And a clearance gap is not formed between 5th electromagnetic wave shielding sheet S5.

第６電磁波遮蔽シートＳ６及び第７電磁波遮蔽シートＳ７は、第５電磁波遮蔽シートＳ５と同様に、第２リブ２２及び第３リブ２３をそれぞれ覆うように配設されている。   Similar to the fifth electromagnetic wave shielding sheet S5, the sixth electromagnetic wave shielding sheet S6 and the seventh electromagnetic wave shielding sheet S7 are disposed so as to cover the second rib 22 and the third rib 23, respectively.

次に、上記のように構成された樹脂成形品１を製造する要領ついて説明する。まず、図５に示すような上側金型１００と下側金型１０１とを備えた成形装置を用意する。この成形装置は射出成形装置であり、上側金型１００と下側金型１０１とが接離するようになっている。上側金型１００には、溶融樹脂をキャビティＲ（図６に示す）に射出するためのゲート１００ｂが設けられている。   Next, a procedure for manufacturing the resin molded product 1 configured as described above will be described. First, a molding apparatus including an upper mold 100 and a lower mold 101 as shown in FIG. 5 is prepared. This molding apparatus is an injection molding apparatus, and the upper mold 100 and the lower mold 101 are in contact with each other. The upper mold 100 is provided with a gate 100b for injecting molten resin into the cavity R (shown in FIG. 6).

上側金型１００の成形面１００ａは、樹脂成形品１の板状部１１及び周壁部１２の内面と、フランジ１２ａの下面とを成形するものである。下側金型１０１の成形面１０１ａは、樹脂成型品１の板状部１１及び周壁部１２の外面と、フランジ１２ａの上面と、第１〜第３リブ２１〜２３と、コーナーリブ２４，２５，２６とを成形するものである。下側金型１０１の成形面１０１ａには、第１〜第３リブ２１〜２３を成形するための凹部１０１ｂが、第１〜第３リブ２１〜２３の位置に対応して形成されている。図５では第１リブ２１成形用の凹部のみ示している。   The molding surface 100a of the upper mold 100 is for molding the inner surfaces of the plate-like portion 11 and the peripheral wall portion 12 of the resin molded product 1 and the lower surface of the flange 12a. The molding surface 101a of the lower mold 101 includes the outer surfaces of the plate-like portion 11 and the peripheral wall portion 12, the upper surface of the flange 12a, the first to third ribs 21 to 23, and the corner ribs 24 and 25. , 26 are formed. On the molding surface 101 a of the lower mold 101, recesses 101 b for molding the first to third ribs 21 to 23 are formed corresponding to the positions of the first to third ribs 21 to 23. FIG. 5 shows only the concave portion for forming the first rib 21.

まず、上側金型１００と下側金型１０１とを型開き状態にした後、下側金型１０１に第１〜第７電磁波遮蔽シートＳ１〜Ｓ７をセットする。このとき、第５〜第７電磁波遮蔽シートＳ５〜Ｓ７を、第１〜第４電磁波遮蔽シートＳ１〜Ｓ４よりも先にセットする。図５に基づいて第５電磁波遮蔽シートＳ５のセット要領について説明すると、第５電磁波遮蔽シートＳ５を凹部１０１ｂに押し込み、凹部１０１ｂの内面に沿うように形を整える。この凹部１０１ｂに押し込まれた第５電磁波遮蔽シートＳ５の端部は、凹部１０１ｂから出て成形面１０１ａの平坦面（板状部１１を成形する面）に沿うように位置する。第６電磁波遮蔽シートＳ６及び第７電磁波遮蔽シートＳ７も同様にセットする。   First, after the upper mold 100 and the lower mold 101 are opened, the first to seventh electromagnetic wave shielding sheets S <b> 1 to S <b> 7 are set in the lower mold 101. At this time, the fifth to seventh electromagnetic wave shielding sheets S5 to S7 are set before the first to fourth electromagnetic wave shielding sheets S1 to S4. The procedure for setting the fifth electromagnetic wave shielding sheet S5 will be described with reference to FIG. 5. The fifth electromagnetic wave shielding sheet S5 is pushed into the concave portion 101b, and the shape is adjusted along the inner surface of the concave portion 101b. The end portion of the fifth electromagnetic wave shielding sheet S5 pushed into the concave portion 101b is positioned so as to extend from the concave portion 101b along the flat surface of the molding surface 101a (the surface on which the plate-like portion 11 is molded). The sixth electromagnetic wave shielding sheet S6 and the seventh electromagnetic wave shielding sheet S7 are similarly set.

その後、第１〜第４電磁波遮蔽シートＳ１〜Ｓ４をセットする。第１電磁波遮蔽シートＳ１の端部を下側金型１０１の凹部１０１ｂに押し込み、第５電磁波遮蔽シートＳ５に重ねる。また、第２電磁波遮蔽シートＳ２の端部を下側金型１０１の凹部１０１ｂに押し込み、第５電磁波遮蔽シートＳ５に重ねる。第２〜第４電磁波遮蔽シートＳ２〜Ｓ４も同様にセットする。   Thereafter, the first to fourth electromagnetic wave shielding sheets S1 to S4 are set. The end portion of the first electromagnetic wave shielding sheet S1 is pushed into the concave portion 101b of the lower mold 101 and overlapped with the fifth electromagnetic wave shielding sheet S5. Further, the end portion of the second electromagnetic wave shielding sheet S2 is pushed into the concave portion 101b of the lower mold 101 and overlapped with the fifth electromagnetic wave shielding sheet S5. The second to fourth electromagnetic wave shielding sheets S2 to S4 are set in the same manner.

次いで、図６に示すように、上側金型１００と下側金型１０１とを型締めする。これにより、上側金型１００の成形面１００ａと下側金型１０１の成形面１０１ａ、１０１ｂとの間に成形品本体１０を成形するためのキャビティＲが形成される。   Next, as shown in FIG. 6, the upper mold 100 and the lower mold 101 are clamped. Thereby, a cavity R for molding the molded product main body 10 is formed between the molding surface 100 a of the upper mold 100 and the molding surfaces 101 a and 101 b of the lower mold 101.

しかる後、図７に示すように、キャビティＲに溶融樹脂を射出する。溶融樹脂は第１〜第７電磁波遮蔽シートＳ１〜Ｓ７がセットされた成形面１０１ａ、１０１ｂとは反対側の成形面１００ａ側から射出されるので第１〜第７電磁波遮蔽シートＳ１〜Ｓ７が移動することはなく、第１〜第７電磁波遮蔽シートＳ１〜Ｓ７は射出された溶融樹脂によって下側金型１０１の成形面１０１ａ、１０１ｂに押し付けられる。溶融樹脂が第１〜第７電磁波遮蔽シートＳ１〜Ｓ７に接触した際、第１〜第７電磁波遮蔽シートＳ１〜Ｓ７の樹脂材層が加熱されて成形面１０１ａ、１０１ｂに沿うように成形される。溶融樹脂は、上側金型１００の成形面１００ａと下側金型１０１の成形面１０１ａ、１０１ｂとによって成形されて固化し、これと同時に第１〜第７電磁波遮蔽シートＳ１〜Ｓ７と一体化して第１〜第７電磁波遮蔽シートＳ１〜Ｓ７が成形品本体１０に貼り付けられた樹脂成形品１が得られる。   Thereafter, the molten resin is injected into the cavity R as shown in FIG. Since the molten resin is injected from the molding surface 100a side opposite to the molding surfaces 101a and 101b on which the first to seventh electromagnetic wave shielding sheets S1 to S7 are set, the first to seventh electromagnetic wave shielding sheets S1 to S7 move. The first to seventh electromagnetic wave shielding sheets S1 to S7 are pressed against the molding surfaces 101a and 101b of the lower mold 101 by the injected molten resin. When the molten resin comes into contact with the first to seventh electromagnetic wave shielding sheets S1 to S7, the resin material layers of the first to seventh electromagnetic wave shielding sheets S1 to S7 are heated and molded along the molding surfaces 101a and 101b. . The molten resin is molded and solidified by the molding surface 100a of the upper mold 100 and the molding surfaces 101a and 101b of the lower mold 101, and at the same time, is integrated with the first to seventh electromagnetic wave shielding sheets S1 to S7. The resin molded product 1 in which the first to seventh electromagnetic wave shielding sheets S1 to S7 are attached to the molded product body 10 is obtained.

上記樹脂成形品１においては、成形品本体１０に第１〜第３リブ２１〜２３を形成したので、成形品本体１０を補強することができる。これにより、樹脂成形品１が軽量、かつ、高強度なものとなる。   In the resin molded product 1, since the first to third ribs 21 to 23 are formed on the molded product body 10, the molded product body 10 can be reinforced. Thereby, the resin molded product 1 becomes lightweight and has high strength.

そして、第１〜第４電磁波遮蔽シートＳ１〜Ｓ４が成形品本体１０の板状部１１及び周壁部１２に沿って配設されているので、板状部１１及び周壁部１２からの電磁波の漏れが防止される。さらに、第１〜第４電磁波遮蔽シートＳ１〜Ｓ４の端部が第１〜第３リブ２１〜２３の側面に沿うように配設されているので、板状部１１に対して立ち上がるようになる。第１〜第４電磁波遮蔽シートＳ１〜Ｓ４の立ち上がっている部分に電磁波が当たることで第１〜第３リブ２１〜２３からの電磁波の漏れが防止される。   And since the 1st-4th electromagnetic wave shielding sheet S1-S4 is arrange | positioned along the plate-shaped part 11 and the surrounding wall part 12 of the molded article main body 10, the leakage of the electromagnetic waves from the plate-shaped part 11 and the surrounding wall part 12 Is prevented. Furthermore, since the end portions of the first to fourth electromagnetic wave shielding sheets S <b> 1 to S <b> 4 are arranged along the side surfaces of the first to third ribs 21 to 23, the end portions rise from the plate-like portion 11. . Leakage of electromagnetic waves from the first to third ribs 21 to 23 is prevented by the electromagnetic waves hitting the rising portions of the first to fourth electromagnetic wave shielding sheets S1 to S4.

以上説明したように、この参考例１に係る樹脂成形品１によれば、第１〜第３リブ２１〜２３を有する板状部１１を第１〜第４電磁波遮蔽シートＳ１〜Ｓ４で覆うことによって電磁波の遮蔽性を持たせる場合に、電磁波が漏れないようにすることができる。 As described above, according to the resin molded product 1 according to the reference example 1 , the plate-like portion 11 having the first to third ribs 21 to 23 is covered with the first to fourth electromagnetic wave shielding sheets S1 to S4. Therefore, when electromagnetic wave shielding is provided, electromagnetic waves can be prevented from leaking.

この参考例１では、特に第１〜第３リブ２１〜２３を第５〜第７電磁波遮蔽シートＳ５〜Ｓ７で隙間無く覆うようにしているので、第１〜第３リブ２１〜２３からの電磁波の漏れが確実に防止される。 In this reference example 1 , since the first to third ribs 21 to 23 are covered with the fifth to seventh electromagnetic wave shielding sheets S5 to S7 without any gaps, the electromagnetic waves from the first to third ribs 21 to 23 are particularly covered. Leakage is reliably prevented.

また、第１〜第７電磁波遮蔽シートＳ１〜Ｓ７を成形品本体１０にインサート成形したので、第１〜第７電磁波遮蔽シートＳ１〜Ｓ７の接着作業を不要にしながら、第１〜第７電磁波遮蔽シートＳ１〜Ｓ７を成形品本体１０と一体化することができる。   In addition, since the first to seventh electromagnetic wave shielding sheets S1 to S7 are insert-molded into the molded product body 10, the first to seventh electromagnetic wave shielding sheets are eliminated while making the bonding work of the first to seventh electromagnetic wave shielding sheets S1 to S7 unnecessary. The sheets S1 to S7 can be integrated with the molded product body 10.

また、平坦な第１、第４電磁波遮蔽シートＳ１、Ｓ４を成形品本体１０のコーナー部１０ａに沿うように変形させてコーナー部１０ａに配設する場合に、第１、第４電磁波遮蔽シートＳ１、Ｓ４の余分が成形品本体１０のコーナーリブ２４，２５，２６に収容されるので、あらかじめ立体形状に成形された高コストな電磁波遮蔽シートを用意することなく、平坦で安価な電磁波遮蔽シートを用いることができ、低コスト化を図ることができる。   Further, when the flat first and fourth electromagnetic wave shielding sheets S1 and S4 are deformed to be arranged along the corner portion 10a of the molded product body 10 and disposed in the corner portion 10a, the first and fourth electromagnetic wave shielding sheets S1. Since the excess of S4 is accommodated in the corner ribs 24, 25, and 26 of the molded product body 10, a flat and inexpensive electromagnetic wave shielding sheet can be obtained without preparing an expensive electromagnetic wave shielding sheet molded in a three-dimensional shape in advance. It can be used, and cost reduction can be achieved.

また、図８に示す実施形態のように、成形品本体１０の第１〜第３リブ２１〜２３の内部には、成形品本体１０の成形時に第１〜第７電磁波遮蔽シートＳ１〜Ｓ７を所定位置で保持するための保持部材６０を埋め込むようにしてもよい。この保持部材６０は、図９に示すように、上側金型１００と下側金型１０１とを型開きした状態で、下側金型１０１の凹部１０１ｂに第１電磁波遮蔽シートＳ１、第２電磁波遮蔽シートＳ２及び第５電磁波遮蔽シートＳ５をセットした後、その凹部１０１ｂに挿入する。保持部材６０は、図１０に示すように、波型に成形された樹脂製の弾性板材で構成することができる。保持部材６０を成形品本体１０と同じ合成樹脂で形成することによって保持部材６０と成形品本体１０とを密着させることができるので、保持部材６０を設けたことよる強度低下を防止できる。 Further, as in the embodiment shown in FIG. 8, the first to seventh electromagnetic wave shielding sheets S <b> 1 to S <b> 7 are formed inside the first to third ribs 21 to 23 of the molded product body 10 when the molded product body 10 is molded. A holding member 60 for holding in a predetermined position may be embedded. As shown in FIG. 9, the holding member 60 has the first electromagnetic wave shielding sheet S <b> 1 and the second electromagnetic wave in the recess 101 b of the lower mold 101 with the upper mold 100 and the lower mold 101 being opened. After setting the shielding sheet S2 and the fifth electromagnetic shielding sheet S5, the shielding sheet S2 is inserted into the recess 101b. As shown in FIG. 10, the holding member 60 can be formed of a resin elastic plate material formed into a corrugated shape. Since the holding member 60 is formed of the same synthetic resin as that of the molded product body 10, the holding member 60 and the molded product body 10 can be brought into close contact with each other, so that strength reduction due to the provision of the holding member 60 can be prevented.

この保持部材６０の波型が連続する方向が凹部１０１ｂの延びる方向（リブの長手方向）となるように、保持部材６０を凹部１０１ｂに挿入すると、保持部材６０の弾性力によって第１電磁波遮蔽シートＳ１、第２電磁波遮蔽シートＳ２及び第５電磁波遮蔽シートＳ５を凹部１０１ｂの内面に押し付けることができる。これにより、第１電磁波遮蔽シートＳ１、第２電磁波遮蔽シートＳ２及び第５電磁波遮蔽シートＳ５が所定位置に保持されるので、溶融樹脂の流動によって移動することはない。また、保持部材６０における凹部１０１ｂの底部に相当する部分（第１〜第３リブ２１〜２３の先端部に相当する部分）には、樹脂通路となる複数の切欠部６０ａが形成されている。この切欠部６０ａ内を溶融樹脂が流れることで成形性が良好になる。図１０に仮想線で示すように、切欠部６０ａの代わりに、貫通孔やスリットを設けてもよい。また、図１０に仮想線で示すように、保持部材６０の切欠部６０ａと反対側に切欠部を設けてもよい。   When the holding member 60 is inserted into the recess 101b so that the direction in which the corrugation of the holding member 60 continues is the direction in which the recess 101b extends (longitudinal direction of the ribs), the first electromagnetic wave shielding sheet is caused by the elastic force of the holding member 60. S1, the second electromagnetic wave shielding sheet S2, and the fifth electromagnetic wave shielding sheet S5 can be pressed against the inner surface of the recess 101b. Thereby, since 1st electromagnetic wave shielding sheet S1, 2nd electromagnetic wave shielding sheet S2, and 5th electromagnetic wave shielding sheet S5 are hold | maintained in a predetermined position, they do not move by the flow of molten resin. Further, a plurality of notches 60a serving as resin passages are formed in a portion corresponding to the bottom of the recess 101b in the holding member 60 (a portion corresponding to the tip of the first to third ribs 21 to 23). The moldability is improved by the molten resin flowing through the notch 60a. As indicated by phantom lines in FIG. 10, a through hole or a slit may be provided instead of the notch 60a. Further, as indicated by a virtual line in FIG. 10, a notch portion may be provided on the opposite side of the holding member 60 from the notch portion 60 a.

この実施形態では、成形品本体１０の成形時に第１〜第７電磁波遮蔽シートＳ１〜Ｓ７を所定位置で保持するための保持部材６０を第１〜第３リブ２１〜２３の内部に埋め込むようにしたので、第１〜第７電磁波遮蔽シートＳ１〜Ｓ７を第１〜第３リブ２１〜２３の側面に沿うように確実に配設することができ、電磁波の漏れを防止できる。 In this embodiment , the holding member 60 for holding the first to seventh electromagnetic wave shielding sheets S <b> 1 to S <b> 7 in a predetermined position when the molded product body 10 is molded is embedded in the first to third ribs 21 to 23. Therefore, the first to seventh electromagnetic wave shielding sheets S1 to S7 can be reliably disposed along the side surfaces of the first to third ribs 21 to 23, and leakage of electromagnetic waves can be prevented.

また、図１１に示す参考例２のように、第５電磁波遮蔽シートＳ５を凹部１０１ｂに挿入しないで、第１電磁波遮蔽シートＳ１の左端部及び第２電磁波遮蔽シートＳ２の右端部が第１リブ２１の側面に沿って配設されるように凹部１０１ｂに挿入してインサート成形し、そのインサート成形品を脱型した後（図１１の（ａ）に示す）、第５電磁波遮蔽シートＳ５を、第１電磁波遮蔽シートＳ１及び第２電磁波遮蔽シートＳ２に熱溶着や、接着剤による接合によって貼り付けるようにしてもよい（図１１の（ｂ）に示す）。成形品本体１０の剛性を高めるために高いリブが形成された場合、金型内で第５電磁波遮蔽シートＳ５をセットすることが難しくなるのに加えて、シール性が低下する恐れがあるが、第５電磁波遮蔽シートＳ５をインサート成形後の成形品に後貼りすることにより、第１〜第３リブ２１〜２３の高さが高い場合に対応するように第５電磁波遮蔽シートＳ５を確実に重ねることができるので、電磁波のシールド性が向上する。また、作業が容易になり、電磁波遮蔽シートのラップ代を少なくすることができる。 Further, as in Reference Example 2 shown in FIG. 11, without inserting the fifth electromagnetic wave shielding sheet S5 into the recess 101b, the left end portion of the first electromagnetic wave shielding sheet S1 and the right end portion of the second electromagnetic wave shielding sheet S2 are the first ribs. After being inserted into the recess 101b so as to be disposed along the side surface of 21 and insert-molded, and the insert-molded product is demolded (shown in FIG. 11A), the fifth electromagnetic wave shielding sheet S5 is You may make it affix on the 1st electromagnetic wave shielding sheet S1 and the 2nd electromagnetic wave shielding sheet S2 by heat welding or the joining by an adhesive agent (shown in (b) of FIG. 11). When a high rib is formed to increase the rigidity of the molded product body 10, in addition to the difficulty of setting the fifth electromagnetic wave shielding sheet S5 in the mold, the sealing performance may be reduced. By pasting the fifth electromagnetic wave shielding sheet S5 on the molded article after the insert molding, the fifth electromagnetic wave shielding sheet S5 is surely stacked so as to correspond to the case where the height of the first to third ribs 21 to 23 is high. Therefore, the shielding property of electromagnetic waves is improved. Moreover, work becomes easy and the lapping cost of the electromagnetic wave shielding sheet can be reduced.

また、図１２に示す参考例３のように、第５電磁波遮蔽シートＳ５を省略し、第１電磁波遮蔽シートＳ１を第２電磁波遮蔽シートＳ２側まで延ばすようにすることもできる。この参考例３では、電磁波遮蔽シートの数を少なくしながら、第１〜第３リブ２１〜２３からの電磁波の漏れを確実に防止することができる。 Further, as in Reference Example 3 shown in FIG. 12, the fifth electromagnetic wave shielding sheet S5 can be omitted, and the first electromagnetic wave shielding sheet S1 can be extended to the second electromagnetic wave shielding sheet S2 side. In Reference Example 3 , it is possible to reliably prevent leakage of electromagnetic waves from the first to third ribs 21 to 23 while reducing the number of electromagnetic wave shielding sheets.

また、図１３に示す参考例４のように、コーナーリブ２４，２５，２６を省略してもよい。この場合、成形品本体１０のコーナー部１０ａに配設される第１電磁波遮蔽シートＳ１及び第４電磁波遮蔽シートＳ４をコーナー部１０ａの形状に対応するように三次元形状にあらかじめ成形しておく。 Further, as in Reference Example 4 shown in FIG. 13, the corner ribs 24, 25, and 26 may be omitted. In this case, the first electromagnetic wave shielding sheet S1 and the fourth electromagnetic wave shielding sheet S4 disposed in the corner portion 10a of the molded product body 10 are previously formed into a three-dimensional shape so as to correspond to the shape of the corner portion 10a.

また、図１４に示す参考例５のように、成形品本体１０の内面に内側第１リブ３１及び内側第２リブ３２（突出部）を設けてもよい。つまり、図４の第１リブ２１が成形品本体１０の内側へ突出するように表裏が逆になった状態である。内側第１リブ３１は、周壁部１２の両内側面からそれぞれ成形品本体１０の内方へ突出して該周壁部１２の上下方向に延びる一対の第１側部リブ３１ａ、３１ａと、板状部１１の内面から成形品本体１０の内方へ突出して成形品本体１０の長手方向と直交する方向に延びる第１底面リブ３１ｂとで構成されている。第１底面リブ３１ｂの両端部は、第１側部リブ３１ａ、３１ａの端部に連なっている。 Moreover, you may provide the inner side 1st rib 31 and the inner side 2nd rib 32 (protrusion part) in the inner surface of the molded article main body 10 like the reference example 5 shown in FIG. That is , the front and back are reversed so that the first rib 21 in FIG. 4 protrudes to the inside of the molded product body 10. The inner first rib 31 protrudes inward of the molded product body 10 from both inner side surfaces of the peripheral wall portion 12 and extends in the vertical direction of the peripheral wall portion 12, and a plate-like portion 11 is formed of a first bottom rib 31b that protrudes inward of the molded product main body 10 and extends in a direction orthogonal to the longitudinal direction of the molded product main body 10. Both end portions of the first bottom rib 31b are connected to end portions of the first side ribs 31a and 31a.

内側第２リブ３２は、周壁部１２の両内側面からそれぞれ成形品本体１０の内方へ突出して該周壁部１２の上下方向に延びる一対の第２側部リブ３２ａ、３２ａと、板状部１１の内面から成形品本体１０の内方へ突出して成形品本体１０の長手方向と直交する方向に延びる第２底面リブ３２ｂとで構成されている。第２底面リブ３２ｂの両端部は、第２側部リブ３２ａ、３２ａの端部に連なっている。   The inner second rib 32 protrudes inward of the molded product body 10 from both inner side surfaces of the peripheral wall portion 12 and extends in the vertical direction of the peripheral wall portion 12, and a plate-like portion. 11 and the second bottom rib 32b extending inward of the molded product body 10 and extending in a direction perpendicular to the longitudinal direction of the molded product body 10. Both end portions of the second bottom rib 32b are connected to end portions of the second side ribs 32a and 32a.

この参考例５では、第１〜第３電磁波遮蔽シートＳ１〜Ｓ３が成形品本体１０の内面に配設されている。第１〜第３電磁波遮蔽シートＳ１〜Ｓ３の端部は、上記した参考例１と同様に、内側第１リブ３１及び内側第２リブ３２の側面に沿うように配設されている。 In Reference Example 5, the first to third electromagnetic wave shielding sheets S <b> 1 to S <b> 3 are disposed on the inner surface of the molded product body 10. The end portions of the first to third electromagnetic wave shielding sheets S <b> 1 to S <b> 3 are arranged along the side surfaces of the inner first rib 31 and the inner second rib 32, as in the first reference example .

また、参考例５の内側第１突出部３１及び内側第２突出部３２を、図１５に示す参考例６のように、成形品本体１０の内側へ膨出する膨出部（中空リブ状の突出部）で構成してもよい。内側第１突出部３１及び内側第２突出部３２を膨出部とすることで、成形品本体１０の外面における内側第１突出部３１に対応する部位には、溝３１ｃが形成され、成形品本体１０の外面における内側第２突出部３２に対応する部位には、溝３２ｃが形成されることになる。この参考例６では、第１〜第３電磁波遮蔽シートＳ１〜Ｓ３が成形品本体１０の外面に配設されている。第１〜第３電磁波遮蔽シートＳ１〜Ｓ３の端部は、溝３１ｃ及び溝３２ｃに挿入するようにする。これにより、第１〜第３電磁波遮蔽シートＳ１〜Ｓ３の端部は、内側第１突出部３１及び内側第２突出部３２の突出方向に沿うように配設されることになる。 Further, the inner first projecting portion 31 and the inner second projecting portion 32 of Reference Example 5 are bulged out (in the form of hollow ribs) as shown in Reference Example 6 shown in FIG. You may comprise by a protrusion part. By using the inner first projecting portion 31 and the inner second projecting portion 32 as the bulging portion, a groove 31c is formed in a portion corresponding to the inner first projecting portion 31 on the outer surface of the molded product body 10, and the molded product is formed. A groove 32 c is formed in a portion corresponding to the inner second protrusion 32 on the outer surface of the main body 10. In Reference Example 6, the first to third electromagnetic wave shielding sheets S <b> 1 to S <b> 3 are disposed on the outer surface of the molded product body 10. The end portions of the first to third electromagnetic wave shielding sheets S1 to S3 are inserted into the groove 31c and the groove 32c. Thereby, the edge part of 1st-3rd electromagnetic wave shielding sheet S1-S3 will be arrange | positioned along the protrusion direction of the inner side 1st protrusion part 31 and the inner side 2nd protrusion part 32. FIG.

また、第１〜第３電磁波遮蔽シートＳ１〜Ｓ３が成形品本体１０の内面に配設されていてもよい。   Further, the first to third electromagnetic wave shielding sheets S <b> 1 to S <b> 3 may be disposed on the inner surface of the molded product body 10.

また、内側に設けた内側第１突出部３１及び内側第２突出部３２を、外側に膨出する膨出部（中空リブ状の突出部）としてもよい。   Further, the inner first protrusion 31 and the inner second protrusion 32 provided on the inner side may be bulged portions (hollow rib-shaped protrusions) that bulge outward.

また、膨出部が、成形品本体１０の外側又は内側のどちらに設けられた場合であっても、第１〜第３電磁波遮蔽シートＳ１〜Ｓ３を成形品本体１０の外面側や内面側にどちら側にでも配設することができる。膨出部が、成形品本体１０の外側に設けられた場合は、成形品本体１０の内部空間を有効に用いることができる。   In addition, the first to third electromagnetic wave shielding sheets S <b> 1 to S <b> 3 are arranged on the outer surface side or the inner surface side of the molded product body 10, regardless of whether the bulging portion is provided on the outer side or the inner side of the molded product body 10. It can be arranged on either side. When the bulging portion is provided outside the molded product body 10, the internal space of the molded product body 10 can be used effectively.

また、図１６に示す参考例７のように、膨出部を成形品本体１０の内側へ突出するように設ける場合には、下側金型１０１に膨出部を成形するための凸部１０１ｃを形成する。そして、第１電磁波遮蔽シートＳ１を先に下側金型１０１に配置し、その後、第５電磁波遮蔽シートＳ５を配置した後、第２電磁波遮蔽シートＳ２を配置する。これにより、矢印Ｘ方向から樹脂が流れた際に、第１電磁波遮蔽シートＳ１、第２電磁波遮蔽シートＳ２及び第５電磁波遮蔽シートＳ５がめくれることはない。 Further, as in Reference Example 7 shown in FIG. 16, when the bulging portion is provided so as to protrude to the inside of the molded product body 10, a convex portion 101 c for molding the bulging portion in the lower mold 101. Form. And after arrange | positioning the 1st electromagnetic wave shielding sheet S1 to the lower metal mold | die 101 first, and arrange | positioning the 5th electromagnetic wave shielding sheet S5 after that, the 2nd electromagnetic wave shielding sheet S2 is arrange | positioned. Thereby, when resin flows from the arrow X direction, the 1st electromagnetic wave shielding sheet S1, the 2nd electromagnetic wave shielding sheet S2, and the 5th electromagnetic wave shielding sheet S5 are not turned up.

また、図１７に示す参考例８のように、成形品本体１０から膨出する膨出部で第１突出部２１を構成する場合に、第１電磁波遮蔽シートＳ１、第２電磁波遮蔽シートＳ２及び第５電磁波遮蔽シートＳ５をインサート成形することなく、成形品本体１０の成形後に手作業で貼り付けるようにしてもよい。この場合、第１電磁波遮蔽シートＳ１及び第２電磁波遮蔽シートＳ２を先に貼り、その後、第５電磁波遮蔽シートＳ５を貼り付ける。第５電磁波遮蔽シートＳ５は、第１電磁波遮蔽シートＳ１及び第２電磁波遮蔽シートＳ２に対して接着又は溶着することができる。 Moreover, when the 1st protrusion part 21 is comprised by the bulging part which bulges from the molded article main body 10 like the reference example 8 shown in FIG. 17, 1st electromagnetic wave shielding sheet S1, 2nd electromagnetic wave shielding sheet S2, and The fifth electromagnetic wave shielding sheet S5 may be manually pasted after the molded product body 10 is molded without insert molding. In this case, the first electromagnetic wave shielding sheet S1 and the second electromagnetic wave shielding sheet S2 are pasted first, and then the fifth electromagnetic wave shielding sheet S5 is pasted. The fifth electromagnetic shielding sheet S5 can be adhered or welded to the first electromagnetic shielding sheet S1 and the second electromagnetic shielding sheet S2.

また、図１８に示す実施形態の変形例のように、膨出部を成形品本体１０の内側へ突出するように設ける場合には、下側金型１０１に膨出部を成形するための凸部１０１ｃを形成し、この凸部１０１ｃに沿うように第１電磁波遮蔽シートＳ１、第２電磁波遮蔽シートＳ２及び第５電磁波遮蔽シートＳ５を配置し、その後、保持部材７０によって第５電磁波遮蔽シートＳ５を保持するようにしてもよい。保持部材７０は、上記保持部材６０と同様な材料からなる板材を湾曲成形したものであり、図１９に示すように複数の貫通孔７１を有している。これら貫通孔７１は溶融樹脂を流通させるためのものである。よって、保持部材７０を使用していても剛性が低下することはない。また、保持部材７０は、第５電磁波遮蔽シートＳ５を挟持するための一対の挟持部７２，７２を有している。挟持部７２，７２により第５電磁波遮蔽シートＳ５を挟持することで、第１電磁波遮蔽シートＳ１及び第２電磁波遮蔽シートＳ２も凸部１０１ｃに保持することができるので、矢印Ｘ方向から樹脂が流れた際に、第１電磁波遮蔽シートＳ１、第２電磁波遮蔽シートＳ２及び第５電磁波遮蔽シートＳ５がめくれることはない。 Further, as in the modification of the embodiment shown in FIG. 18, when the bulging portion is provided so as to protrude to the inside of the molded product main body 10, the convex for forming the bulging portion on the lower mold 101 is provided. The first electromagnetic wave shielding sheet S1, the second electromagnetic wave shielding sheet S2, and the fifth electromagnetic wave shielding sheet S5 are disposed along the convex portion 101c, and then the fifth electromagnetic wave shielding sheet S5 is formed by the holding member 70. May be held. The holding member 70 is formed by bending a plate material made of the same material as that of the holding member 60, and has a plurality of through holes 71 as shown in FIG. These through holes 71 are for circulating the molten resin. Therefore, even if the holding member 70 is used, the rigidity does not decrease. Moreover, the holding member 70 has a pair of clamping parts 72 and 72 for clamping the fifth electromagnetic wave shielding sheet S5. Since the first electromagnetic wave shielding sheet S1 and the second electromagnetic wave shielding sheet S2 can be held on the convex portion 101c by sandwiching the fifth electromagnetic wave shielding sheet S5 by the sandwiching portions 72, 72, the resin flows from the arrow X direction. In this case, the first electromagnetic wave shielding sheet S1, the second electromagnetic wave shielding sheet S2, and the fifth electromagnetic wave shielding sheet S5 are not turned up.

また、上記実施形態では、樹脂成形品１がバッテリーケースＡの構成部材である場合について説明したが、本発明に係る樹脂成形品１は、バッテリーケースＡ以外にも、電磁波の遮蔽が必要な部位に用いることができる。   Moreover, although the said embodiment demonstrated the case where the resin molded product 1 was a structural member of the battery case A, the resin molded product 1 which concerns on this invention is a site | part which needs shielding of electromagnetic waves besides the battery case A Can be used.

上述の実施形態はあらゆる点で単なる例示に過ぎず、限定的に解釈してはならない。さらに、特許請求の範囲の均等範囲に属する変形や変更は、全て本発明の範囲内のものである。   The above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

以上説明したように、本発明に係る樹脂成形品は、例えば、バッテリーケースとして用いることができる。   As described above, the resin molded product according to the present invention can be used as, for example, a battery case.

１ 樹脂成形品
１０ 成形品本体
１０ａ コーナー部
１１ 板状部
１２ 周壁部
２１〜２３ 第１〜第３リブ（突出部）
２４〜２６ コーナーリブ（余長吸収部）
６０、７０ 保持部材
Ｓ１〜Ｓ７ 第１〜第７電磁波遮蔽シート DESCRIPTION OF SYMBOLS 1 Resin molded product 10 Molded product main body 10a Corner part 11 Plate-shaped part 12 Perimeter wall parts 21-23 The 1st-3rd rib (protrusion part)
24-26 Corner rib (extra length absorption part)
60, 70 Holding members S1 to S7 First to seventh electromagnetic wave shielding sheets

Claims (2)

樹脂材を成形してなるとともに、板状部（１１）と、該板状部（１１）から突出する突出部（２１、２２、２３）とが設けられた射出成形品からなる成形品本体（１０）と、
上記成形品本体（１０）に配設される複数枚の電磁波遮蔽シート（Ｓ１〜Ｓ４）とを備えた樹脂成形品（１）において、
上記電磁波遮蔽シート（Ｓ１〜Ｓ４）は上記板状部（１１）に沿って配設されるとともに上記成形品本体（１０）にインサート成形されており、該電磁波遮蔽シート（Ｓ１〜Ｓ４）の端部は、上記突出部（２１、２２、２３）の突出方向に沿うように配設され、
上記成形品本体（１０）の上記突出部（２１、２２、２３）内部には、上記成形品本体（１０）の成形時に上記電磁波遮蔽シート（Ｓ１〜Ｓ７）を所定位置で保持するための保持部材（６０、７０）が埋め込まれていることを特徴とする樹脂成形品（１）。 A molded product body (11) formed of a resin material and made of an injection molded product provided with a plate-like portion (11) and protruding portions (21, 22, 23) protruding from the plate-like portion (11). 10) and
In the resin molded product (1) provided with a plurality of electromagnetic wave shielding sheets (S1 to S4) disposed in the molded product body (10),
The electromagnetic shielding sheet (S1 to S4) are insert molded Rutotomoni the molding body (10) disposed along the plate-like portion (11), an end of the electromagnetic shielding sheet (S1 to S4) The portion is arranged along the protruding direction of the protruding portion (21, 22, 23) ,
A holding for holding the electromagnetic wave shielding sheets (S1 to S7) in a predetermined position when the molded product main body (10) is molded, inside the protrusions (21, 22, 23) of the molded product main body (10). The resin molded product (1), wherein the members (60, 70) are embedded . 請求項１に記載の樹脂成形品（１）において、
上記成形品本体（１０）は、コーナー部（１０ａ）を有する箱体であり、
上記電磁波遮蔽シート（Ｓ１、Ｓ４）は、上記コーナー部（１０ａ）にも配設されており、
上記成形品本体（１０）には、上記コーナー部（１０ａ）に対応する部位に、上記電磁波遮蔽シート（Ｓ１、Ｓ４）の余長分を吸収するための余長吸収部（２４、２５、２６）が設けられていることを特徴とする樹脂成形品（１）。 In the resin molded product (1) according to claim 1,
The molded product body (10) is a box having a corner (10a),
The electromagnetic wave shielding sheets (S1, S4) are also disposed in the corner portion (10a),
In the molded product main body (10), surplus length absorbing portions (24, 25, 26) for absorbing the surplus length of the electromagnetic wave shielding sheets (S1, S4) in a portion corresponding to the corner portion (10a). ) Is provided . (1).
JP2013095876A 2013-04-30 2013-04-30 Plastic molded product Active JP6182352B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013095876A JP6182352B2 (en) 2013-04-30 2013-04-30 Plastic molded product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013095876A JP6182352B2 (en) 2013-04-30 2013-04-30 Plastic molded product

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2017014250A Division JP6346678B2 (en) 2017-01-30 2017-01-30 Plastic molded product

Publications (2)

Publication Number Publication Date
JP2014216627A JP2014216627A (en) 2014-11-17
JP6182352B2 true JP6182352B2 (en) 2017-08-16

Family

ID=51942068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013095876A Active JP6182352B2 (en) 2013-04-30 2013-04-30 Plastic molded product

Country Status (1)

Country Link
JP (1) JP6182352B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6105378B2 (en) * 2013-04-30 2017-03-29 ダイキョーニシカワ株式会社 Plastic molded product
JP6346678B2 (en) * 2017-01-30 2018-06-20 ダイキョーニシカワ株式会社 Plastic molded product

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0462119A (en) * 1990-06-26 1992-02-27 Furukawa Electric Co Ltd:The Preparation of resin molding with electrically conductive layer
JP2000254939A (en) * 1999-03-08 2000-09-19 Dainippon Printing Co Ltd Resin molded article and apparatus for producing the same
JP2001230586A (en) * 2000-02-18 2001-08-24 Takakazu Miyazaki Electromagnetic wave shielding case and its manufacturing method

Also Published As

Publication number Publication date
JP2014216627A (en) 2014-11-17

Similar Documents

Publication Publication Date Title
JP6346678B2 (en) Plastic molded product
JP2014518175A (en) Outer module with outer panel for module-structured casing component, module-structured casing component itself, and method of manufacturing outer module
US20190375164A1 (en) Bonded body
JP6381450B2 (en) Mounting structure for internal parts of automobile fuel tank
JP6182352B2 (en) Plastic molded product
KR20150072178A (en) Back beam for vehicle
CN103043107B (en) A kind of automobile particularly car
US20110089713A1 (en) Vehicle interior part
JP6105378B2 (en) Plastic molded product
WO2015016157A1 (en) Method for producing foam-molded member, and impact-absorbing member
JP6282334B2 (en) Plastic molded product
JP2015058715A (en) Fuel tank for vehicle
JP2015103365A (en) Battery container
KR100977830B1 (en) A trim molding for motor
US11179896B2 (en) Bonded body
JP2005315385A (en) Heat insulation panel
JP5633924B2 (en) Interior parts for vehicles and manufacturing method thereof
JP5880926B2 (en) Method for manufacturing vehicle interior material
JP2011198472A (en) Battery pack
JP2015106440A (en) Battery container
JP7406810B2 (en) Hollow structure and method for manufacturing hollow structure
JP2015103483A (en) Battery container
JP5495437B2 (en) Multilayer foam substrate and method for producing the same
JP2015106540A (en) Battery container
JP2013180794A (en) Packaging bag

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20160218

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20161130

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170110

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170130

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20170711

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20170724

R150 Certificate of patent or registration of utility model

Ref document number: 6182352

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250