JP6904041B2 - Resin molded products and door modules - Google Patents

Resin molded products and door modules Download PDF

Info

Publication number
JP6904041B2
JP6904041B2 JP2017086194A JP2017086194A JP6904041B2 JP 6904041 B2 JP6904041 B2 JP 6904041B2 JP 2017086194 A JP2017086194 A JP 2017086194A JP 2017086194 A JP2017086194 A JP 2017086194A JP 6904041 B2 JP6904041 B2 JP 6904041B2
Authority
JP
Japan
Prior art keywords
thin
resin molded
mounting
solid
walled
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
JP2017086194A
Other languages
Japanese (ja)
Other versions
JP2018183911A (en
Inventor
英史 片山
英史 片山
松下　和弘
和弘 松下
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.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
Aisin 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 Aisin Seiki Co Ltd, Aisin Corp filed Critical Aisin Seiki Co Ltd
Priority to JP2017086194A priority Critical patent/JP6904041B2/en
Publication of JP2018183911A publication Critical patent/JP2018183911A/en
Application granted granted Critical
Publication of JP6904041B2 publication Critical patent/JP6904041B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Description

本発明は、樹脂成形品及びドアモジュールに関する。 The present invention relates to resin molded products and door modules.

射出成形型の樹脂材料を充填したキャビティの一部の容積を増大させることにより形成された多数の空隙を有する発泡部と、容積を増大させないキャビティから形成されたソリッド部とを備えた樹脂成形品が知られている（例えば、特許文献１参照）。 A resin molded product having a foamed portion having a large number of voids formed by increasing the volume of a part of a cavity filled with an injection-molded resin material and a solid portion formed from a cavity that does not increase the volume. Is known (see, for example, Patent Document 1).

特許第４７９０３２８号公報Japanese Patent No. 4790328

図１４は、キャビティの一部の容積を増大させる射出成形型の一例を示している。射出成形型１００は、固定型となる第１金型１１０、第１金型１１０に対向配置された可動型となる第２金型１２０、及び第１金型１１０に隣接するとともに第１金型１１０に対向配置された可動型となる押さえブロック１３０を有する。射出成形型１００では、第２金型１２０及び押さえブロック１３０が第１金型１１０に対して下方に移動することにより第１金型１１０と第２金型１２０との間のキャビティが増大する。その結果、第１金型１１０と第２金型１２０との間のキャビティに対応する部分に樹脂成形品２００の発泡部２１０が形成される。これにより、ソリッド部２２０と発泡部２１０との境界部分２３０において樹脂成形品２００の厚さが急激に変化する階段状の段差が形成される。このため、ソリッド部２２０及び発泡部２１０の少なくとも一方に力が加えられたとき、境界部分２３０に応力が集中してしまう。 FIG. 14 shows an example of an injection molding mold that increases the volume of a part of the cavity. The injection molding die 100 is adjacent to the first mold 110 which is a fixed mold, the second mold 120 which is a movable mold arranged opposite to the first mold 110, and the first mold 110 and is the first mold. It has a movable holding block 130 which is arranged to face the 110. In the injection molding die 100, the cavity between the first mold 110 and the second mold 120 is increased by moving the second mold 120 and the pressing block 130 downward with respect to the first mold 110. As a result, the foamed portion 210 of the resin molded product 200 is formed in the portion corresponding to the cavity between the first mold 110 and the second mold 120. As a result, a step-like step in which the thickness of the resin molded product 200 suddenly changes is formed at the boundary portion 230 between the solid portion 220 and the foamed portion 210. Therefore, when a force is applied to at least one of the solid portion 220 and the foamed portion 210, the stress is concentrated on the boundary portion 230.

この問題を解決するため、図１５に示すように、発泡部２１０の厚さＴＲ１と、ソリッド部２２０の厚さＴＲ２とを等しくして段差をなくすように樹脂成形品２００を形成することが考えられる。しかし、ソリッド部２２０の厚さＴＲ２が厚くなった分、ソリッド部２２０の冷却時間が長くなり、冷却時間の間に発泡剤が反応し続け、発泡部２１０における空隙の体積が増加してしまう場合がある。その結果、樹脂成形品２００の許容応力が低下するおそれがある。 In order to solve this problem, as shown in FIG. 15, it is conceivable to form the resin molded product 200 so that the thickness TR1 of the foamed portion 210 and the thickness TR2 of the solid portion 220 are equalized to eliminate the step. Be done. However, when the thickness TR2 of the solid portion 220 becomes thicker, the cooling time of the solid portion 220 becomes longer, the foaming agent continues to react during the cooling time, and the volume of the voids in the foamed portion 210 increases. There is. As a result, the allowable stress of the resin molded product 200 may decrease.

本発明の目的は、ソリッド部と発泡部との境界部分に応力集中が生じること、及び許容応力の低下の両方を抑制できる樹脂成形品及びドアモジュールを提供することにある。 An object of the present invention is to provide a resin molded product and a door module capable of suppressing both stress concentration occurring at a boundary portion between a solid portion and a foamed portion and a decrease in allowable stress.

上記課題を解決する樹脂成形品は、本体部と、前記本体部と一体に設けられ、駆動部品を取付可能な取付部と、を有するパネル状の樹脂成形品であって、前記樹脂成形品は、多数の空隙を有する発泡部と、多数の空隙を有していないソリッド部とから形成され、前記取付部と、前記本体部における前記取付部の周囲の所定領域とは、前記ソリッド部から形成され、前記本体部において前記所定領域と隣り合う部分は、前記発泡部から形成され、前記ソリッド部において前記発泡部との境界部分は、前記発泡部の厚さと等しい厚肉部で形成され、前記ソリッド部において前記厚肉部よりも前記発泡部から離れた部分は、前記発泡部の厚さよりも薄い薄肉部を有し、前記薄肉部は、前記ソリッド部の厚さ方向における一方側の面から見て、前記所定領域において前記取付部の周囲に沿って間隔を空けて複数形成されているとともに、前記ソリッド部の厚さ方向における他方側の面から見て、前記所定領域において前記取付部の周囲に沿って間隔を空けて複数形成されており、前記ソリッド部の前記他方側に形成された前記薄肉部と、前記ソリッド部の前記一方側に形成された前記薄肉部とは、前記取付部の周囲に沿って交互に形成されている。 The resin molded product that solves the above problems is a panel-shaped resin molded product having a main body portion and a mounting portion that is integrally provided with the main body portion and to which a drive component can be attached. , A foamed portion having a large number of voids and a solid portion not having a large number of voids are formed, and the mounting portion and a predetermined region around the mounting portion in the main body portion are formed from the solid portion. The portion adjacent to the predetermined region in the main body portion is formed from the foamed portion, and the boundary portion with the foamed portion in the solid portion is formed by a thick portion equal to the thickness of the foamed portion. portion away from the foam portion than the thick portion in the solid portion is to have a thin walled portion than the thickness of the foam portion, the thin portion from a surface of one side in the thickness direction of the solid portion As seen, a plurality of the mounting portions are formed at intervals along the periphery of the mounting portion in the predetermined region, and the mounting portion is formed in the predetermined region when viewed from the other side surface in the thickness direction of the solid portion. A plurality of thin-walled portions are formed at intervals along the periphery, and the thin-walled portion formed on the other side of the solid portion and the thin-walled portion formed on the one side of the solid portion are the mounting portions. It is formed alternately along the circumference of .

この構成によれば、ソリッド部における発泡部との境界部分に発泡部の厚さと等しい厚肉部が形成されるため、樹脂成形品の厚さが急激に変化する階段状の段差が境界部分に形成されることが抑制される。このため、樹脂成形品に力が加えられたときに境界部分に応力集中が生じることを抑制できる。加えて、ソリッド部が薄肉部を有するため、ソリッド部の体積が減少し、ソリッド部の冷却時間が短縮される。したがって、冷却時間の間に発泡剤の反応が進み、発泡部における空隙の体積が増加することが抑制されるため、樹脂成形品の許容応力の低下を抑制できる。 According to this configuration, a thick portion equal to the thickness of the foamed portion is formed at the boundary portion of the solid portion with the foamed portion, so that a stepped step in which the thickness of the resin molded product changes abruptly is formed at the boundary portion. The formation is suppressed. Therefore, it is possible to prevent stress concentration from occurring at the boundary portion when a force is applied to the resin molded product. In addition, since the solid portion has a thin-walled portion, the volume of the solid portion is reduced and the cooling time of the solid portion is shortened. Therefore, the reaction of the foaming agent proceeds during the cooling time, and the increase in the volume of the voids in the foamed portion is suppressed, so that the decrease in the allowable stress of the resin molded product can be suppressed.

この構成によれば、例えば本体部における所定領域の全体が薄肉部で形成された場合と比較して、所定領域の強度の低下を抑制できる。
この構成によれば、ソリッド部の厚さ方向の断面視において、所定領域が略矩形状に形成される。このため、例えば所定領域の全体が薄肉部で形成された場合と比較して、所定領域の剛性を高めることができる。
上記樹脂成形品において、前記薄肉部は、前記ソリッド部の厚さ方向における一方側の面から他方側の面に向けて凹む凹部により形成され、前記凹部は、前記一方側の面から前記他方側の面に向かうにつれて傾斜する傾斜面を有することが好ましい。 According to this configuration, it is possible to suppress a decrease in the strength of the predetermined region as compared with the case where the entire predetermined region in the main body portion is formed of a thin wall portion, for example.
According to this configuration, a predetermined region is formed in a substantially rectangular shape in a cross-sectional view of the solid portion in the thickness direction. Therefore, for example, the rigidity of the predetermined region can be increased as compared with the case where the entire predetermined region is formed of a thin portion.
In the resin molded product, the thin-walled portion is formed by recesses recessed from one side surface to the other side surface in the thickness direction of the solid portion, and the recessed portion is formed from the one side surface to the other side. It is preferable to have an inclined surface that inclines toward the surface of.

この構成によれば、薄肉部の傾斜面によってソリッド部における薄肉部と薄肉部以外の部分との間での急激な厚さの変化を抑制できる。したがって、薄肉部と薄肉部以外の部分との間での応力集中を抑制できる。 According to this configuration, the inclined surface of the thin-walled portion can suppress a sudden change in thickness between the thin-walled portion and the portion other than the thin-walled portion in the solid portion. Therefore, stress concentration between the thin-walled portion and the portion other than the thin-walled portion can be suppressed.

上記樹脂成形品において、前記薄肉部は、前記ソリッド部の前記一方側の面と前記傾斜面とを繋ぐ曲面を有することが好ましい。
この構成によれば、曲面によってソリッド部における薄肉部と薄肉部以外の部分との間での急激な厚さの変化を一層抑制できる。したがって、薄肉部と薄肉部以外の部分との間での応力集中を一層抑制できる。 In the resin molded product, the thin-walled portion preferably has a curved surface connecting the one-sided surface of the solid portion and the inclined surface.
According to this configuration, the curved surface can further suppress a sudden change in thickness between the thin portion and the portion other than the thin portion in the solid portion. Therefore, the stress concentration between the thin-walled portion and the portion other than the thin-walled portion can be further suppressed.

上記課題を解決するドアモジュールは、上記樹脂成形品と、前記樹脂成形品に取り付けられた前記駆動部品と、を備える。 The door module that solves the above problems includes the resin molded product and the driving component attached to the resin molded product.

この構成によれば、上記樹脂成形品が得られる効果と同様に、ソリッド部と発泡部との境界部分に応力集中が生じること、及び許容応力の低下の両方を抑制できる。 According to this configuration, it is possible to suppress both the stress concentration at the boundary portion between the solid portion and the foamed portion and the decrease in the allowable stress, as in the effect of obtaining the resin molded product.

上記樹脂成形品及びドアモジュールによれば、ソリッド部と発泡部との境界部分に応力集中が生じること、及び許容応力の低下の両方を抑制できる。 According to the resin molded product and the door module, it is possible to suppress both the stress concentration occurring at the boundary portion between the solid portion and the foamed portion and the decrease in the allowable stress.

実施形態のドアモジュールを搭載したスライドドアの模式図。The schematic diagram of the sliding door which mounted the door module of an embodiment. ドアモジュールの斜視図。Perspective view of the door module. （ａ）樹脂成形品の正面図、（ｂ）樹脂成形品の背面図。(A) Front view of the resin molded product, (b) Back view of the resin molded product. 図３（ａ）の樹脂成形品の第１取付部及びその周辺を拡大した拡大図。An enlarged view of the first mounting portion and its periphery of the resin molded product of FIG. 3 (a). 図３（ｂ）の樹脂成形品の第１取付部及びその周辺を拡大した拡大図。An enlarged view of the first mounting portion of the resin molded product of FIG. 3 (b) and its periphery. 図４の６−６線で切った断面図。FIG. 4 is a cross-sectional view taken along the line 6-6 of FIG. 図４の７−７線で切った断面図。FIG. 4 is a cross-sectional view taken along the line 7-7 of FIG. 図４の８−８線で切った断面図。FIG. 4 is a cross-sectional view taken along the line 8-8 of FIG. 樹脂成形品を成形する成形型の模式断面図。Schematic cross-sectional view of a molding die for molding a resin molded product. 樹脂成形品を成形する成形型の模式断面図。Schematic cross-sectional view of a molding die for molding a resin molded product. 変形例の樹脂成形品の第１取付部及びその周辺を拡大した正面図。An enlarged front view of the first mounting portion and its periphery of the resin molded product of the modified example. 図１１の樹脂成形品における１２−１２線で切った断面図。FIG. 11 is a cross-sectional view taken along line 12-12 of the resin molded product of FIG. 別の変形例の樹脂成形品における薄肉部が形成されたソリッド部と発泡部との境界部分及びその周辺を拡大した断面図。An enlarged cross-sectional view of the boundary portion between the solid portion and the foamed portion in which the thin-walled portion is formed and the periphery thereof in the resin molded product of another modified example. 従来の成形型により成形された樹脂成形品における発泡部とソリッド部との境界部分及びその周辺を拡大した断面図。FIG. 5 is an enlarged cross-sectional view of a boundary portion between a foamed portion and a solid portion and a periphery thereof in a resin molded product molded by a conventional molding mold. 別の従来の樹脂成形品における発泡部とソリッド部との境界部分及びその周辺を拡大した断面図。An enlarged cross-sectional view of the boundary portion between the foamed portion and the solid portion and the periphery thereof in another conventional resin molded product.

以下、樹脂成形品及びドアモジュールを備える車両ドアを具体化した一実施形態を図面に従って説明する。
図１に示すように、車両ドア１は、車両本体７に設けられたアッパーガイドレール７ａ、ロアガイドレール７ｂ、及びセンターガイドレール７ｃを介して車両本体７に摺動可能に取り付けられている。車両ドア１は、車両前後方向に移動することにより車両のボディ側に設けられた開口部（図示略）を開閉するスライドドアとして構成されている。より詳細には、車両ドア１は、車両前方側（同図中、左側）に移動することにより、ボディの開口部を閉塞する閉状態となり、車両後方側（同図中、右側）に移動することにより、その開口部を介して乗員が乗降可能な開状態になる。 Hereinafter, an embodiment in which a vehicle door including a resin molded product and a door module is embodied will be described with reference to the drawings.
As shown in FIG. 1, the vehicle door 1 is slidably attached to the vehicle body 7 via the upper guide rail 7a, the lower guide rail 7b, and the center guide rail 7c provided on the vehicle body 7. The vehicle door 1 is configured as a sliding door that opens and closes an opening (not shown) provided on the body side of the vehicle by moving in the front-rear direction of the vehicle. More specifically, the vehicle door 1 moves to the front side of the vehicle (left side in the figure) to close the opening of the body and moves to the rear side of the vehicle (right side in the figure). As a result, the occupant can get on and off through the opening.

車両ドア１は、アウターパネル２と、アウターパネル２の内側（車内側）に取り付けられるインナーパネル３と、インナーパネル３において車内側から取り付けられるドアモジュール１０と、アウターパネル２及びインナーパネル３の間に設けられた窓ガラス４とを備える。インナーパネル３の内側（車内側）には、内装パネルが取り付けられる。また車両ドア１には、車両ドア１を全閉位置で拘束するための全閉ロック（リアロック）５と、車両ドア１を全開位置で拘束するための全開ロック６とが設けられている。 The vehicle door 1 is located between the outer panel 2, the inner panel 3 attached to the inside of the outer panel 2 (inside the vehicle), the door module 10 attached from the inside of the vehicle on the inner panel 3, and the outer panel 2 and the inner panel 3. The window glass 4 provided in the above is provided. An interior panel is attached to the inside of the inner panel 3 (inside the vehicle). Further, the vehicle door 1 is provided with a fully closed lock (rear lock) 5 for restraining the vehicle door 1 in the fully closed position and a fully open lock 6 for restraining the vehicle door 1 in the fully open position.

図２に示すように、ドアモジュール１０は、パネル状の樹脂成形品２０と、車両ドア１（図１参照）を移動させるドア移動装置４０と、窓ガラス４（図１参照）を昇降させる窓ガラス昇降装置５０と、全閉ロック５及び全開ロック６（ともに図１参照）を操作するドア開閉装置６０とを備える。ドア移動装置４０、窓ガラス昇降装置５０、及びドア開閉装置６０は、樹脂成形品２０に取り付けられている。 As shown in FIG. 2, the door module 10 includes a panel-shaped resin molded product 20, a door moving device 40 for moving the vehicle door 1 (see FIG. 1), and a window for raising and lowering the window glass 4 (see FIG. 1). A glass elevating device 50 and a door opening / closing device 60 for operating a fully closed lock 5 and a fully open lock 6 (both see FIG. 1) are provided. The door moving device 40, the window glass raising / lowering device 50, and the door opening / closing device 60 are attached to the resin molded product 20.

ドア移動装置４０は、車両ドア１を牽引するケーブル４１，４２と、ケーブル４１，４２を巻いたり繰り出したりする駆動ユニット４３とを備えた既知の構造を有する。駆動ユニット４３の一例は、ケーブル４１，４２を巻くドラム４４と、ケーブル４１，４２の一方をドラム４４に案内するガイドプーリ４５と、ドラム４４を回転させるドア移動用モータ４６とを備える既知の構造を有する。 The door moving device 40 has a known structure including cables 41 and 42 for pulling the vehicle door 1 and a drive unit 43 for winding and unwinding the cables 41 and 42. An example of the drive unit 43 is a known structure including a drum 44 around which the cables 41 and 42 are wound, a guide pulley 45 for guiding one of the cables 41 and 42 to the drum 44, and a door moving motor 46 for rotating the drum 44. Has.

窓ガラス昇降装置５０は、窓ガラス４を牽引するケーブル５１，５２と、ケーブル５１，５２を巻くドラム５３と、ドラム５３と協働してケーブル５１，５２を張るプーリ５４と、ドラム５３を回転させる窓ガラス昇降用モータ５５と、窓ガラス４の下端に取り付けられるキャリア５６とを備える既知の構造を有する。 The window glass elevating device 50 rotates the cables 51 and 52 that pull the window glass 4, the drum 53 that winds the cables 51 and 52, the pulley 54 that stretches the cables 51 and 52 in cooperation with the drum 53, and the drum 53. It has a known structure including a window glass elevating motor 55 for raising and lowering the window glass, and a carrier 56 attached to the lower end of the window glass 4.

ドア開閉装置６０は、インナーハンドル６１と、各種の操作に基づいて全閉ロック５及び全開ロック６を動作させるリモートコントロール装置６２と、車両ドア１の全閉状態のロック及びロック解除を切り替える電動ロック装置６３とを備える。リモートコントロール装置６２は、複数のレバーにより構成されている。複数のレバーのうちの第１レバーは動力伝達ケーブル６４を介して全閉ロック５に接続され、第２レバーは動力伝達ケーブル６４を介して全開ロック６に接続されている。各種の操作は、例えばインナーハンドル６１の操作及びアウターハンドル（図示略）の操作を含む。電動ロック装置６３は、電動ロック装置６３を操作するスイッチ（図示略）からのロック操作に基づいて駆動する。 The door opening / closing device 60 includes an inner handle 61, a remote control device 62 that operates the fully closed lock 5 and the fully open lock 6 based on various operations, and an electric lock that switches between locking and unlocking the fully closed state of the vehicle door 1. A device 63 is provided. The remote control device 62 is composed of a plurality of levers. The first lever of the plurality of levers is connected to the fully closed lock 5 via the power transmission cable 64, and the second lever is connected to the fully open lock 6 via the power transmission cable 64. The various operations include, for example, the operation of the inner handle 61 and the operation of the outer handle (not shown). The electric lock device 63 is driven based on a lock operation from a switch (not shown) that operates the electric lock device 63.

図３に示すように、樹脂成形品２０は、本体部２１と、駆動部品の一例であるドア移動装置４０を取付可能な第１取付部２２と、窓ガラス昇降装置５０を取付可能な第２取付部２３と、ドア開閉装置６０を取付可能な第３取付部２４とを有する。樹脂成形品２０の材料は、例えば発泡剤が添加されたポリプロピレン（ＰＰ）が用いられる。樹脂成形品２０は、例えばコアバック射出発泡成形により形成される。各取付部２２〜２４は、本体部２１と一体に設けられている。樹脂成形品２０は、ボルト（図示略）によってインナーパネル３（図１参照）に取り付けられるための複数の取付孔２５を有する。 As shown in FIG. 3, the resin molded product 20 has a main body portion 21, a first attachment portion 22 to which a door moving device 40 which is an example of a driving component can be attached, and a second attachment portion 22 to which a window glass elevating device 50 can be attached. It has a mounting portion 23 and a third mounting portion 24 to which the door opening / closing device 60 can be mounted. As the material of the resin molded product 20, for example, polypropylene (PP) to which a foaming agent is added is used. The resin molded product 20 is formed by, for example, core back injection foam molding. Each of the mounting portions 22 to 24 is provided integrally with the main body portion 21. The resin molded product 20 has a plurality of mounting holes 25 for being mounted on the inner panel 3 (see FIG. 1) by bolts (not shown).

第１取付部２２は、樹脂成形品２０の車両後方側且つ下方側に設けられている。第１取付部２２は、ドア移動装置４０の駆動ユニット４３を収容する収容部２２Ａを有する。収容部２２Ａは、本体部２１から樹脂成形品２０の外側（車外側）に向けて凹んでいる。収容部２２Ａは、駆動ユニット４３を取り付けるための複数の取付孔２２Ｂと、ケーブル４１，４２を挿入する挿入孔２２Ｃとを有する。図３では、収容部２２Ａは、３つの取付孔２２Ｂ及び１つの挿入孔２２Ｃを有する。図２に示すように、ボルトＢが取付孔２２Ｂ（図３参照）にねじ込まれることにより、駆動ユニット４３が収容部２２Ａに取り付けられる。挿入孔２２Ｃは、収容部２２Ａにおける上方側且つ車両後方側の部分に形成されている。図４に示すように、３つの取付孔２２Ｂのうちの第１取付孔２２Ｘは第１取付部２２の後方に設けられ、第２取付孔２２Ｙは第１取付部２２の上方側に設けられ、第３取付孔２２Ｚは第１取付部２２と第２取付部２３との間に設けられている。第１取付孔２２Ｘ及び第２取付孔２２Ｙの周囲には、取付孔２２Ｂを取り囲む第１リブ２７Ａと、第１リブ２７Ａから放射状に延びる複数の第２リブ２７Ｂとが設けられている。第３取付孔２２Ｚの周囲には、第１リブ２７Ａが設けられている。 The first mounting portion 22 is provided on the rear side and the lower side of the vehicle of the resin molded product 20. The first mounting portion 22 has a housing portion 22A for accommodating the drive unit 43 of the door moving device 40. The accommodating portion 22A is recessed from the main body portion 21 toward the outside (outside of the vehicle) of the resin molded product 20. The accommodating portion 22A has a plurality of mounting holes 22B for mounting the drive unit 43, and insertion holes 22C for inserting the cables 41 and 42. In FIG. 3, the accommodating portion 22A has three mounting holes 22B and one insertion hole 22C. As shown in FIG. 2, the drive unit 43 is attached to the accommodating portion 22A by screwing the bolt B into the attachment hole 22B (see FIG. 3). The insertion hole 22C is formed in a portion of the accommodating portion 22A on the upper side and the rear side of the vehicle. As shown in FIG. 4, the first mounting hole 22X of the three mounting holes 22B is provided behind the first mounting portion 22, and the second mounting hole 22Y is provided above the first mounting portion 22. The third mounting hole 22Z is provided between the first mounting portion 22 and the second mounting portion 23. Around the first mounting hole 22X and the second mounting hole 22Y, a first rib 27A surrounding the mounting hole 22B and a plurality of second ribs 27B radiating from the first rib 27A are provided. A first rib 27A is provided around the third mounting hole 22Z.

図５に示すように、複数の取付孔２５のうちの第１取付部２２の上方側の取付孔２５Ｘには、取付孔２５Ｘの周囲のうちの車両前方側、上方側、及び車両後方側を取り囲む第１リブ２８Ａと、第１リブ２８Ａから取付孔２５Ｘに向けて放射状に延びる複数の第２リブ２８Ｂとが設けられている。 As shown in FIG. 5, the mounting holes 25X on the upper side of the first mounting portion 22 of the plurality of mounting holes 25 include the vehicle front side, the upper side, and the vehicle rear side of the periphery of the mounting holes 25X. A surrounding first rib 28A and a plurality of second ribs 28B extending radially from the first rib 28A toward the mounting hole 25X are provided.

図４及び図５に示すように、第２取付部２３は、第１取付部２２に隣り合い、且つ第１取付部２２よりも車両前方側に設けられている。第２取付部２３は、ドラム５３（図２参照）を収容する収容部２３Ａと、窓ガラス昇降用モータ５５（図２参照）を取り付けるための複数の取付孔２３Ｂとを有する。複数の取付孔２３Ｂは、収容部２３Ａの周囲に位置している。図５では、第２取付部２３は、３つの取付孔２３Ｂを有する。 As shown in FIGS. 4 and 5, the second mounting portion 23 is provided adjacent to the first mounting portion 22 and on the front side of the vehicle with respect to the first mounting portion 22. The second mounting portion 23 has a housing portion 23A for accommodating the drum 53 (see FIG. 2) and a plurality of mounting holes 23B for mounting the window glass elevating motor 55 (see FIG. 2). The plurality of mounting holes 23B are located around the accommodating portion 23A. In FIG. 5, the second mounting portion 23 has three mounting holes 23B.

図５に示すように、樹脂成形品２０において第１取付部２２及び第２取付部２３の間には、リブ２６が樹脂成形品２０と一体に形成されている。リブ２６は、第１取付部２２と第２取付部２３との間の部分に沿って延び、且つ第２取付部２３の下方部分２３Ｘまで延びている。下方部分２３Ｘのリブ２６は、第２取付部２３から下方に向けて延びる複数のリブ２６Ａを有する。 As shown in FIG. 5, in the resin molded product 20, a rib 26 is integrally formed with the resin molded product 20 between the first mounting portion 22 and the second mounting portion 23. The rib 26 extends along a portion between the first mounting portion 22 and the second mounting portion 23 and extends to the lower portion 23X of the second mounting portion 23. The rib 26 of the lower portion 23X has a plurality of ribs 26A extending downward from the second mounting portion 23.

図３に示すように、第３取付部２４は、樹脂成形品２０の車両前方側且つ上方側の部分に設けられている。第３取付部２４は、インナーハンドル６１を取り付けるための取付孔２４Ａと、リモートコントロール装置６２を取り付けるための複数の取付孔２４Ｂと、電動ロック装置６３を取り付けるための取付孔２４Ｃとを有する。 As shown in FIG. 3, the third mounting portion 24 is provided on the vehicle front side and the upper side portion of the resin molded product 20. The third mounting portion 24 has a mounting hole 24A for mounting the inner handle 61, a plurality of mounting holes 24B for mounting the remote control device 62, and a mounting hole 24C for mounting the electric lock device 63.

図４に示すように、樹脂成形品２０は、多数の空隙を有する発泡部３０と、多数の空隙を有していないソリッド部３１とから形成されている。本体部２１における所定領域Ｒ（図中の網掛けを付した領域）と、第１取付部２２及び第２取付部２３とは、ソリッド部３１から形成されている。本体部２１における所定領域Ｒと隣り合う部分は、発泡部３０から形成されている。本実施形態では、本体部２１において第１取付部２２、第２取付部２３、及び第１取付部２２の周囲の所定領域Ｒ以外の部分は、発泡部３０から形成されている。図４から分かるとおり、所定領域Ｒは、第２取付部２３の下方部分２３Ｘを含む。本実施形態の所定領域Ｒは、本体部２１において、ドア移動装置４０から第１取付部２２に力が加えられたときに第１取付部２２の周囲において力が加わる領域であり、発泡部３０よりもソリッド部３１で形成されることが好ましい領域である。第１取付部２２の周囲において第２取付部２３と隣り合う部分は、ソリッド部３１となるため、所定領域Ｒから除外されている。 As shown in FIG. 4, the resin molded product 20 is formed of a foamed portion 30 having a large number of voids and a solid portion 31 having no large number of voids. The predetermined region R (the shaded area in the drawing) in the main body portion 21, and the first mounting portion 22 and the second mounting portion 23 are formed of the solid portion 31. The portion of the main body 21 adjacent to the predetermined region R is formed from the foamed portion 30. In the present embodiment, the portion other than the predetermined region R around the first mounting portion 22, the second mounting portion 23, and the first mounting portion 22 in the main body portion 21 is formed from the foamed portion 30. As can be seen from FIG. 4, the predetermined region R includes the lower portion 23X of the second mounting portion 23. The predetermined region R of the present embodiment is a region in the main body 21 where a force is applied around the first mounting portion 22 when a force is applied from the door moving device 40 to the first mounting portion 22, and the foamed portion 30. It is a region preferably formed by the solid portion 31 rather than the solid portion 31. The portion adjacent to the second mounting portion 23 around the first mounting portion 22 is a solid portion 31, and is therefore excluded from the predetermined region R.

図４に示すように、複数の薄肉部３２は、ソリッド部３１の厚さ方向における一方側の面３１Ｘ（外面）から見て、所定領域Ｒにおいて第１取付部２２の周囲に沿って間隔を空けて形成されている。図５に示すように、複数の薄肉部３２は、ソリッド部３１の厚さ方向における他方側の面３１Ｙ（内面）から見て、所定領域Ｒにおいて第１取付部２２の周囲に沿って間隔を空けて形成されている。より詳細には、収容部２３Ａの上方側の部分、収容部２３Ａの下方領域における下方側の部分、車両前方側の部分、及び車両後方側の部分には、ソリッド部３１の一方側の薄肉部３２及びソリッド部３１の他方側の薄肉部３２の両方が形成されている。第１取付孔２２Ｘ及び第２取付孔２２Ｙの周囲のうちの隣り合う第２リブ２７Ｂの間に薄肉部３２が形成されている。取付孔２５Ｘと第１取付部２２との間の所定領域Ｒには、取付孔２５Ｘから下方に延びる薄肉部３２が形成されている。 As shown in FIG. 4, the plurality of thin-walled portions 32 are spaced along the periphery of the first mounting portion 22 in a predetermined region R when viewed from one side surface 31X (outer surface) of the solid portion 31 in the thickness direction. It is formed open. As shown in FIG. 5, the plurality of thin-walled portions 32 are spaced along the periphery of the first mounting portion 22 in a predetermined region R when viewed from the other side surface 31Y (inner surface) of the solid portion 31 in the thickness direction. It is formed open. More specifically, the upper portion of the accommodating portion 23A, the lower portion in the lower region of the accommodating portion 23A, the portion on the front side of the vehicle, and the portion on the rear side of the vehicle include a thin portion on one side of the solid portion 31. Both the 32 and the thin portion 32 on the other side of the solid portion 31 are formed. A thin portion 32 is formed between the adjacent second ribs 27B around the first mounting hole 22X and the second mounting hole 22Y. A thin portion 32 extending downward from the mounting hole 25X is formed in a predetermined region R between the mounting hole 25X and the first mounting portion 22.

図５に示すように、収容部２３Ａの挿入孔２２Ｃが形成される部分の車両後方側の部分には、ソリッド部３１の他方側の薄肉部３２のみが形成されている。挿入孔２２Ｃが形成される部分の車両後方側の部分の薄肉部３２は、車両後方側に向けて延びている。一方、樹脂成形品２０において、第１取付部２２と第２取付部２３との間の部分には、薄肉部３２が形成されていない。 As shown in FIG. 5, only the thin portion 32 on the other side of the solid portion 31 is formed in the portion on the rear side of the vehicle where the insertion hole 22C of the accommodating portion 23A is formed. The thin-walled portion 32 of the portion on the rear side of the vehicle in which the insertion hole 22C is formed extends toward the rear side of the vehicle. On the other hand, in the resin molded product 20, the thin-walled portion 32 is not formed in the portion between the first mounting portion 22 and the second mounting portion 23.

第２取付部２３の下方部分２３Ｘには、ソリッド部３１の一方側の薄肉部３２及びソリッド部３１の他方側の薄肉部３２の両方が形成されている。複数の薄肉部３２は、第２取付部２３から下方側に向けて延びている。複数の薄肉部３２の長手方向の長さは、車両前方側に向かうにつれて長くなる。図５に示す複数の薄肉部３２は、リブ２６Ａの間に形成され、図４に示す複数の薄肉部３２のうちの一部は、リブ２６Ａと同じ位置に形成されている。 Both the thin-walled portion 32 on one side of the solid portion 31 and the thin-walled portion 32 on the other side of the solid portion 31 are formed in the lower portion 23X of the second mounting portion 23. The plurality of thin-walled portions 32 extend downward from the second mounting portion 23. The length of the plurality of thin-walled portions 32 in the longitudinal direction becomes longer toward the front side of the vehicle. The plurality of thin-walled portions 32 shown in FIG. 5 are formed between the ribs 26A, and a part of the plurality of thin-walled portions 32 shown in FIG. 4 is formed at the same position as the ribs 26A.

図６に示すように、所定領域Ｒの外縁は、発泡部３０とソリッド部３１との境界部分３３を形成している。薄肉部３２は、ソリッド部３１の一方側の面３１Ｘ（外面）から他方側（内側）に向けて凹む凹部により形成されている。図７に示すように、薄肉部３２は、ソリッド部３１の他方側の面３１Ｙ（内面）から一方側（外側）に向けて凹む凹部により形成されている。図８に示すように、ソリッド部３１の一方側に形成された薄肉部３２と、ソリッド部３１の他方側に形成された薄肉部３２とは、第１取付部２２の周囲に沿って交互に形成されている。 As shown in FIG. 6, the outer edge of the predetermined region R forms a boundary portion 33 between the foamed portion 30 and the solid portion 31. The thin-walled portion 32 is formed by recesses recessed from one side surface 31X (outer surface) of the solid portion 31 toward the other side (inner surface). As shown in FIG. 7, the thin-walled portion 32 is formed by recesses recessed from the other side surface 31Y (inner surface) of the solid portion 31 toward one side (outside). As shown in FIG. 8, the thin-walled portion 32 formed on one side of the solid portion 31 and the thin-walled portion 32 formed on the other side of the solid portion 31 alternate along the periphery of the first mounting portion 22. It is formed.

図６及び図７に示すように、ソリッド部３１において境界部分３３は、厚肉部３４で形成されている。本実施形態では、厚肉部３４は、ソリッド部３１において境界部分３３を含む所定領域Ｒの発泡部３０側の部分を形成している。薄肉部３２は、ソリッド部３１において境界部分３３（厚肉部３４）よりも発泡部３０から離れた部分に形成されている。薄肉部３２の厚さＴ１は、発泡部３０の厚さＴ２及び厚肉部３４の厚さＴ３よりも薄い。厚肉部３４の厚さＴ３は、発泡部３０の厚さＴ２と等しい。厚肉部３４の厚さＴ３が発泡部３０の厚さＴ２と等しいとは、厚肉部３４の厚さＴ３が発泡部３０における境界部分３３の厚さＴ２と等しいことを示す。ここで、「等しい」とは、製造誤差等による厚さＴ３と厚さＴ２との差異を含む。 As shown in FIGS. 6 and 7, in the solid portion 31, the boundary portion 33 is formed by the thick portion 34. In the present embodiment, the thick portion 34 forms a portion of the solid portion 31 on the foamed portion 30 side of the predetermined region R including the boundary portion 33. The thin-walled portion 32 is formed in the solid portion 31 at a portion distant from the foamed portion 30 than the boundary portion 33 (thick-walled portion 34). The thickness T1 of the thin portion 32 is thinner than the thickness T2 of the foamed portion 30 and the thickness T3 of the thick portion 34. The thickness T3 of the thick portion 34 is equal to the thickness T2 of the foamed portion 30. The fact that the thickness T3 of the thick portion 34 is equal to the thickness T2 of the foamed portion 30 indicates that the thickness T3 of the thick portion 34 is equal to the thickness T2 of the boundary portion 33 in the foamed portion 30. Here, "equal" includes the difference between the thickness T3 and the thickness T2 due to a manufacturing error or the like.

図６に示すように、薄肉部３２は、傾斜面３２Ａ、底面３２Ｂ、曲面３２Ｃ，３２Ｄを有する。傾斜面３２Ａは、ソリッド部３１の厚さ方向の一方側の面３１Ｘから他方側の面３１Ｙに向かうにつれて傾斜している。底面３２Ｂは、薄肉部３２の底部を構成している。図６に示す底面３２Ｂは、一方側の面３１Ｘと平行する平面を含む。曲面３２Ｃは傾斜面３２Ａの一端とソリッド部３１の一方側の面３１Ｘとを繋ぎ、曲面３２Ｄは傾斜面３２Ａの他端と底面３２Ｂとを繋いでいる。図７に示す薄肉部３２の形状は、図６に示す薄肉部３２の形状と異なる。図７に示す薄肉部３２は、傾斜面３２Ａ、底面３２Ｂ、曲面３２Ｃを有する。図７に示す薄肉部３２の底面３２Ｂは、ソリッド部３１の一方側に向けて凹む凹形状を有する。図７の薄肉部３２の曲面３２Ｃは、傾斜面３２Ａの一端とソリッド部３１の他方側の面３１Ｙとを繋いでいる。 As shown in FIG. 6, the thin-walled portion 32 has an inclined surface 32A, a bottom surface 32B, and curved surfaces 32C and 32D. The inclined surface 32A is inclined from one surface 31X in the thickness direction of the solid portion 31 toward the other surface 31Y. The bottom surface 32B constitutes the bottom portion of the thin wall portion 32. The bottom surface 32B shown in FIG. 6 includes a plane parallel to the surface 31X on one side. The curved surface 32C connects one end of the inclined surface 32A and the surface 31X on one side of the solid portion 31, and the curved surface 32D connects the other end of the inclined surface 32A and the bottom surface 32B. The shape of the thin-walled portion 32 shown in FIG. 7 is different from the shape of the thin-walled portion 32 shown in FIG. The thin-walled portion 32 shown in FIG. 7 has an inclined surface 32A, a bottom surface 32B, and a curved surface 32C. The bottom surface 32B of the thin-walled portion 32 shown in FIG. 7 has a concave shape that is recessed toward one side of the solid portion 31. The curved surface 32C of the thin portion 32 in FIG. 7 connects one end of the inclined surface 32A and the surface 31Y on the other side of the solid portion 31.

次に、樹脂成形品２０の製造方法について説明する。
図９に示すように、コアバック射出発泡成形を行うための成形型７０を用意する。成形型７０は、固定型としての第１金型７１と、第１金型７１に対向配置された可動型としての第２金型７２と、第１金型７１と隣接するとともに第２金型７２に対向配置された可動型としての押さえブロック７３とを備える。第１金型７１は、第１取付部２２、第２取付部２３、及び所定領域Ｒ（図４及び図５参照）以外の部分に対応する箇所を形成するための型である。押さえブロック７３は、第１取付部２２、第２取付部２３、及び所定領域Ｒに対応する箇所を形成するための型である。第１金型７１と押さえブロック７３との合わせ面（接触面）は、所定領域Ｒの外縁、即ち発泡部３０とソリッド部３１との境界部分３３に対応する。押さえブロック７３には、薄肉部３２を形成するための凸部７３Ａが設けられている。第２金型７２は、樹脂成形品２０の全体を形成するための型である。第２金型７２において所定領域Ｒに対応する箇所には、薄肉部３２を形成するための凸部（図示略）が設けられている。 Next, a method for manufacturing the resin molded product 20 will be described.
As shown in FIG. 9, a molding die 70 for performing core back injection foam molding is prepared. The molding die 70 includes a first mold 71 as a fixed mold, a second mold 72 as a movable mold arranged to face the first mold 71, and a second mold adjacent to the first mold 71 and a second mold. A movable pressing block 73 arranged to face the 72 is provided. The first mold 71 is a mold for forming a portion corresponding to a portion other than the first mounting portion 22, the second mounting portion 23, and the predetermined area R (see FIGS. 4 and 5). The holding block 73 is a mold for forming a portion corresponding to the first mounting portion 22, the second mounting portion 23, and the predetermined region R. The mating surface (contact surface) between the first mold 71 and the pressing block 73 corresponds to the outer edge of the predetermined region R, that is, the boundary portion 33 between the foamed portion 30 and the solid portion 31. The pressing block 73 is provided with a convex portion 73A for forming the thin portion 32. The second mold 72 is a mold for forming the entire resin molded product 20. In the second mold 72, a convex portion (not shown) for forming the thin-walled portion 32 is provided at a portion corresponding to the predetermined region R.

図９に示すように、成形型７０を型閉じした状態でキャビティ７４内に射出機（図示略）から例えば発泡材が添加されたポリプロピレン（ＰＰ）が充填される。ポリプロピレンは、成形型７０により圧縮された状態になるようにキャビティ７４内に充填される。その後、キャビティ７４内でポリプロピレンが固化する過程で、図１０に示すように、第１金型７１と第２金型７２との間のキャビティ容積が増大する方向に第２金型７２が下方に移動する。つまり、第２金型７２が第１金型７１から下方に向けて僅かに離れて、押さえブロック７３を除く部分に対応するキャビティ容積、即ち第１取付部２２、第２取付部２３、及び所定領域Ｒ（図４及び図５参照）以外の部分に対応するキャビティ容積が増大する。ポリプロピレンは、第１取付部２２、第２取付部２３、及び所定領域Ｒ以外の部分に対応するキャビティ容積の増大により圧縮から解放されて弾性的に復元し膨張する。これにより、多数の空隙を有する発泡部３０が形成される。 As shown in FIG. 9, in a state where the molding die 70 is closed, the cavity 74 is filled with polypropylene (PP) to which, for example, a foaming material is added from an injection machine (not shown). Polypropylene is filled in the cavity 74 so as to be in a compressed state by the molding die 70. After that, in the process of solidifying polypropylene in the cavity 74, as shown in FIG. 10, the second mold 72 moves downward in the direction in which the cavity volume between the first mold 71 and the second mold 72 increases. Moving. That is, the second mold 72 is slightly separated from the first mold 71 downward, and the cavity volume corresponding to the portion excluding the pressing block 73, that is, the first mounting portion 22, the second mounting portion 23, and the predetermined The cavity volume corresponding to the portion other than the region R (see FIGS. 4 and 5) increases. Polypropylene is released from compression by increasing the cavity volume corresponding to the first mounting portion 22, the second mounting portion 23, and the portion other than the predetermined region R, and elastically restores and expands. As a result, the foamed portion 30 having a large number of voids is formed.

一方、押さえブロック７３は、第２金型７２の下方への移動にともない第２金型７２と同様に下方に移動するため、ソリッド部３１に対応するキャビティ容積が増大しない。このため、ポリプロピレンは、弾性復元が抑制されることにより膨張しないため、多数の空隙を有していないソリッド部３１が形成される。また、押さえブロック７３の凸部７３Ａ及び第２金型７２の凸部（図示略）により、所定領域Ｒにおける複数の薄肉部３２が樹脂成形品２０の成形と同時に形成される。 On the other hand, since the pressing block 73 moves downward in the same manner as the second mold 72 as the second mold 72 moves downward, the cavity volume corresponding to the solid portion 31 does not increase. Therefore, polypropylene does not expand due to the suppression of elastic restoration, so that a solid portion 31 having no large number of voids is formed. Further, the convex portion 73A of the pressing block 73 and the convex portion (not shown) of the second mold 72 form a plurality of thin-walled portions 32 in the predetermined region R at the same time as molding the resin molded product 20.

以上記述したように、本実施形態によれば、以下のような効果を得ることができる。
（１）樹脂成形品２０は、ソリッド部３１における境界部分３３の厚肉部３４の厚さＴ３が発泡部３０の厚さＴ２と等しい。これにより、樹脂成形品２０の厚さが急激に変化する階段状の段差が境界部分３３に形成されることが抑制される。このため、樹脂成形品２０に力が加えられたときに境界部分３３に応力集中が生じることを抑制できる。加えて、ソリッド部３１が薄肉部３２を有するため、ソリッド部３１の体積が減少し、樹脂成形品２０の成形時におけるソリッド部３１の冷却時間が短縮される。したがって、冷却時間の間に発泡剤の反応が進み、発泡部３０の多数の空隙が過度に大きくなることが抑制されるため、樹脂成形品２０の許容応力の低下を抑制できる。 As described above, according to the present embodiment, the following effects can be obtained.
(1) In the resin molded product 20, the thickness T3 of the thick portion 34 of the boundary portion 33 in the solid portion 31 is equal to the thickness T2 of the foamed portion 30. As a result, it is possible to prevent the boundary portion 33 from being formed with a stepped step in which the thickness of the resin molded product 20 changes rapidly. Therefore, it is possible to prevent stress concentration from occurring at the boundary portion 33 when a force is applied to the resin molded product 20. In addition, since the solid portion 31 has the thin-walled portion 32, the volume of the solid portion 31 is reduced, and the cooling time of the solid portion 31 at the time of molding the resin molded product 20 is shortened. Therefore, the reaction of the foaming agent proceeds during the cooling time, and it is suppressed that a large number of voids in the foamed portion 30 become excessively large, so that a decrease in the allowable stress of the resin molded product 20 can be suppressed.

（２）窓ガラス４よりも重い車両ドア１を移動させるドア移動装置４０のドア移動用モータ４６の出力は、窓ガラス昇降装置５０の窓ガラス昇降用モータ５５の出力よりも高い。このため、ドア移動用モータ４６の駆動にともない駆動ユニット４３を介して第１取付部２２に伝達される力は、窓ガラス昇降用モータ５５の駆動にともない第２取付部２３に伝達される力よりも大きい。さらに、例えば車両ドア１の挟み込みを検知したときのドア移動用モータ４６の急速な停止にともない車両ドア１の移動が停止する。このとき、ドア移動用モータ４６には過負荷が加えられる。この過負荷は、駆動ユニット４３を介して第１取付部２２に伝達される。このような実情において、本実施形態では、薄肉部３２が第１取付部２２の周囲の所定領域Ｒに形成される。これにより、第１取付部２２に力が加えられたとしても所定領域Ｒの境界部分３３には応力集中が生じることを抑制できる。 (2) The output of the door moving motor 46 of the door moving device 40 for moving the vehicle door 1 heavier than the window glass 4 is higher than the output of the window glass raising / lowering motor 55 of the window glass raising / lowering device 50. Therefore, the force transmitted to the first mounting portion 22 via the drive unit 43 when the door moving motor 46 is driven is the force transmitted to the second mounting portion 23 when the window glass elevating motor 55 is driven. Greater than. Further, for example, the movement of the vehicle door 1 is stopped due to the rapid stop of the door moving motor 46 when the pinching of the vehicle door 1 is detected. At this time, an overload is applied to the door moving motor 46. This overload is transmitted to the first mounting portion 22 via the drive unit 43. In such a situation, in the present embodiment, the thin-walled portion 32 is formed in a predetermined region R around the first mounting portion 22. As a result, even if a force is applied to the first mounting portion 22, stress concentration can be suppressed from occurring at the boundary portion 33 of the predetermined region R.

（３）薄肉部３２は、傾斜面３２Ａを有するため、厚肉部３４から薄肉部３２に亘るソリッド部３１の厚さの急激な変化、薄肉部３２からソリッド部３１における薄肉部３２よりも第１取付部２２側の部分に亘るソリッド部３１の厚さの急激な変化を抑制できる。したがって、薄肉部３２と薄肉部３２以外の部分との間の応力集中を抑制できる。 (3) Since the thin-walled portion 32 has an inclined surface 32A, a sudden change in the thickness of the solid portion 31 from the thick-walled portion 34 to the thin-walled portion 32, and a thicker portion than the thin-walled portion 32 in the thin-walled portion 32 to the solid portion 31. It is possible to suppress a sudden change in the thickness of the solid portion 31 over the portion on the side of the mounting portion 22. Therefore, the stress concentration between the thin-walled portion 32 and the portion other than the thin-walled portion 32 can be suppressed.

（４）薄肉部３２は、ソリッド部３１の一方側の面３１Ｘ（他方側の面３１Ｙ）と傾斜面３２Ａとを繋ぐ曲面３２Ｃを有するため、厚肉部３４から薄肉部３２に亘るソリッド部３１の厚さの急激な変化、薄肉部３２からソリッド部３１における薄肉部３２よりも第１取付部２２側の部分に亘るソリッド部３１の厚さの急激な変化を一層抑制できる。したがって、薄肉部３２と薄肉部３２以外の部分との間の応力集中を一層抑制できる。 (4) Since the thin-walled portion 32 has a curved surface 32C connecting one side surface 31X (the other side surface 31Y) of the solid portion 31 and the inclined surface 32A, the solid portion 31 extending from the thick-walled portion 34 to the thin-walled portion 32. It is possible to further suppress a sudden change in the thickness of the solid portion 31 and a sudden change in the thickness of the solid portion 31 from the thin portion 32 to the portion of the solid portion 31 closer to the first mounting portion 22 than the thin portion 32. Therefore, the stress concentration between the thin-walled portion 32 and the portion other than the thin-walled portion 32 can be further suppressed.

（５）薄肉部３２は、所定領域Ｒにおいて間隔を空けて複数形成されている。このため、所定領域Ｒの全体が薄肉部で形成された場合と比較して、所定領域Ｒの強度の低下を抑制できる。 (5) A plurality of thin-walled portions 32 are formed at intervals in a predetermined region R. Therefore, it is possible to suppress a decrease in the strength of the predetermined region R as compared with the case where the entire predetermined region R is formed of a thin portion.

（６）ソリッド部３１の一方側の薄肉部３２とソリッド部３１の他方側の薄肉部３２とが所定領域Ｒの長手方向に沿って交互に形成される。即ち、ソリッド部３１の厚さ方向の断面視において、所定領域Ｒが略矩形状に形成される。このため、所定領域Ｒの全体が薄肉部で形成された場合と比較して、所定領域Ｒの剛性が高められる。 (6) The thin-walled portion 32 on one side of the solid portion 31 and the thin-walled portion 32 on the other side of the solid portion 31 are alternately formed along the longitudinal direction of the predetermined region R. That is, in the cross-sectional view of the solid portion 31 in the thickness direction, the predetermined region R is formed in a substantially rectangular shape. Therefore, the rigidity of the predetermined region R is increased as compared with the case where the entire predetermined region R is formed of the thin portion.

（７）樹脂成形品２０にドア移動装置４０及び窓ガラス昇降装置５０が取り付けられている。したがって、ドア移動装置４０及び窓ガラス昇降装置５０が個別の樹脂成形品に取り付けられる構成と比較して、車両ドア１の生産効率が向上する。加えて、ドア開閉装置６０が樹脂成形品２０に取り付けられている。これにより、車両ドア１の生産効率がさらに向上する。 (7) A door moving device 40 and a window glass elevating device 50 are attached to the resin molded product 20. Therefore, the production efficiency of the vehicle door 1 is improved as compared with the configuration in which the door moving device 40 and the window glass elevating device 50 are attached to individual resin molded products. In addition, the door opening / closing device 60 is attached to the resin molded product 20. As a result, the production efficiency of the vehicle door 1 is further improved.

上記実施形態に関する説明は、本発明に従う樹脂成形品及びドアモジュールが取り得る形態の例示であり、その形態を制限することを意図していない。本発明に従う樹脂成形品及びドアモジュールは、上記実施形態以外に例えば以下に示される変形例、及び相互に矛盾しない少なくとも２つの変形例が組み合せられた形態を取り得る。 The description of the above embodiment is an example of possible forms of the resin molded article and the door module according to the present invention, and is not intended to limit the form. The resin molded product and the door module according to the present invention may take a form in which, for example, the following modifications and at least two modifications that do not contradict each other are combined in addition to the above embodiment.

・上記実施形態において、薄肉部３２は、ソリッド部３１の一方側のみ、又はソリッド部３１の他方側のみに形成されてもよい。ソリッド部３１の一方側の薄肉部３２のピッチ、又はソリッド部３１の他方側の薄肉部３２のピッチは任意に変更可能である。一例では、ソリッド部３１の一方側の薄肉部３２のピッチ、又はソリッド部３１の他方側の薄肉部３２のピッチを上記実施形態の２倍に設定してもよい。 -In the above embodiment, the thin-walled portion 32 may be formed only on one side of the solid portion 31 or only on the other side of the solid portion 31. The pitch of the thin-walled portion 32 on one side of the solid portion 31 or the pitch of the thin-walled portion 32 on the other side of the solid portion 31 can be arbitrarily changed. In one example, the pitch of the thin-walled portion 32 on one side of the solid portion 31 or the pitch of the thin-walled portion 32 on the other side of the solid portion 31 may be set to twice that of the above embodiment.

・上記実施形態において、ソリッド部３１の一方側の薄肉部３２と、ソリッド部３１の他方側の薄肉部３２とは、交互に形成されなくてもよい。例えば、ソリッド部３１の一方側の複数の薄肉部３２が形成され、その複数の薄肉部３２の隣にソリッド部３１の他方側の複数の薄肉部３２が形成されてもよい。 In the above embodiment, the thin-walled portion 32 on one side of the solid portion 31 and the thin-walled portion 32 on the other side of the solid portion 31 do not have to be formed alternately. For example, a plurality of thin-walled portions 32 on one side of the solid portion 31 may be formed, and a plurality of thin-walled portions 32 on the other side of the solid portion 31 may be formed next to the plurality of thin-walled portions 32.

・上記実施形態において、薄肉部３２の構造は任意に変更可能である。一例では、複数の薄肉部３２が第１取付部２２の周囲に沿って形成される構造に代えて、図１１及び図１２に示すように、第１取付部２２の周囲に沿って延びる長帯状の薄肉部３２であってもよい。なお、図１１に示される長帯状の薄肉部３２以外の所定領域Ｒの薄肉部３２についても同様に長帯状の薄肉部３２に変更可能である。 -In the above embodiment, the structure of the thin wall portion 32 can be arbitrarily changed. In one example, instead of a structure in which a plurality of thin-walled portions 32 are formed along the circumference of the first mounting portion 22, as shown in FIGS. 11 and 12, a long strip extending along the circumference of the first mounting portion 22. The thin-walled portion 32 of the above may be used. The thin portion 32 of the predetermined region R other than the long strip-shaped thin portion 32 shown in FIG. 11 can also be changed to the long strip-shaped thin portion 32 in the same manner.

・上記実施形態において、薄肉部３２の凹部の形状は任意に変更可能である。一例では、図１３に示すように、薄肉部３２は、境界部分３３からソリッド部３１の他方側に傾斜する傾斜面３２Ｅを有する。発泡部３０の一方側の面３０Ｘと傾斜面３２Ｅとの成す傾斜角度は、上記実施形態のソリッド部３１の一方側の面３１Ｘと傾斜面３２Ａとの成す傾斜角度よりも小さい。この構成によっても、上記実施形態の（１）の効果と同様の効果が得られる。なお、この場合、ソリッド部３１における境界部分３３が厚肉部３４となる。 -In the above embodiment, the shape of the concave portion of the thin wall portion 32 can be arbitrarily changed. In one example, as shown in FIG. 13, the thin wall portion 32 has an inclined surface 32E that is inclined from the boundary portion 33 to the other side of the solid portion 31. The inclination angle formed by the one-sided surface 30X of the foamed portion 30 and the inclined surface 32E is smaller than the inclination angle formed by the one-sided surface 31X of the solid portion 31 and the inclined surface 32A of the above embodiment. Even with this configuration, the same effect as the effect of (1) of the above embodiment can be obtained. In this case, the boundary portion 33 in the solid portion 31 becomes the thick portion 34.

・上記実施形態において、樹脂成形品２０における第２取付部２３の位置は任意に変更可能である。一例では、第２取付部２３は、第１取付部２２の上方に隣り合うように形成される。この場合、窓ガラス昇降装置５０がドア移動装置４０の上方に隣り合うように配置される。 -In the above embodiment, the position of the second mounting portion 23 in the resin molded product 20 can be arbitrarily changed. In one example, the second mounting portion 23 is formed so as to be adjacent to the upper side of the first mounting portion 22. In this case, the window glass elevating device 50 is arranged so as to be adjacent to the upper side of the door moving device 40.

・上記実施形態において、本体部２１における第２取付部２３の周囲の所定領域及び第３取付部２４の周囲の所定領域の少なくとも一方が上記実施形態の所定領域Ｒのようなソリッド部３１で形成された領域であってもよい。第２取付部２３の周囲の所定領域は、本体部２１において、窓ガラス昇降装置５０から第２取付部２３に力が加えられたときに第２取付部２３の周囲において力が加わる領域である。第３取付部２４の周囲の所定領域は、本体部２１においてドア開閉装置６０（インナーハンドル６１）から第３取付部２４に力が加えられたときに第３取付部２４の周囲において力が加わる領域である。 In the above embodiment, at least one of a predetermined region around the second mounting portion 23 and a predetermined region around the third mounting portion 24 in the main body portion 21 is formed by a solid portion 31 such as the predetermined region R of the above embodiment. It may be a region that has been created. The predetermined area around the second mounting portion 23 is a region in which the force is applied around the second mounting portion 23 when the force is applied from the window glass elevating device 50 to the second mounting portion 23 in the main body portion 21. .. In the predetermined area around the third mounting portion 24, when a force is applied from the door opening / closing device 60 (inner handle 61) to the third mounting portion 24 in the main body portion 21, a force is applied around the third mounting portion 24. The area.

・上記実施形態において、本体部２１における第２取付部２３の周囲の所定領域及び第３取付部２４の周囲の所定領域の少なくとも一方に複数の薄肉部３２が形成されてもよい。即ち、樹脂成形品２０における第１取付部２２の周囲の所定領域Ｒ、第２取付部２３の周囲の所定領域、及び第３取付部２４の周囲の所定領域の少なくとも一方に複数の薄肉部３２が形成されてもよい。要するに、薄肉部３２は、樹脂成形品２０において駆動部品からの力が加えられる取付部の周囲の所定領域に形成されていればよい。 In the above embodiment, a plurality of thin-walled portions 32 may be formed in at least one of a predetermined region around the second mounting portion 23 and a predetermined region around the third mounting portion 24 in the main body portion 21. That is, a plurality of thin-walled portions 32 in at least one of the predetermined region R around the first mounting portion 22, the predetermined region around the second mounting portion 23, and the predetermined region around the third mounting portion 24 in the resin molded product 20. May be formed. In short, the thin-walled portion 32 may be formed in a predetermined region around the mounting portion to which the force from the driving component is applied in the resin molded product 20.

・上記実施形態において、ソリッド部３１において厚さＴ１で形成される薄肉部３２の範囲は任意に変更可能である。第１例では、所定領域Ｒにおける厚肉部３４以外の部分を薄肉部３２の厚さＴ１で形成される。この場合、所定領域Ｒにおける厚肉部３４以外の部分が薄肉部に相当する。第２例では、ソリッド部３１における第１取付部２２と、所定領域Ｒにおける厚肉部３４以外の部分とを薄肉部３２の厚さＴ１で形成してもよい。この場合、第１取付部２２と、所定領域Ｒにおける厚肉部３４以外の部分とが薄肉部に相当する。要するに、ソリッド部３１において境界部分３３よりも発泡部３０から離れた部分の少なくとも一部が薄肉部を有するように形成されていればよい。 In the above embodiment, the range of the thin portion 32 formed by the thickness T1 in the solid portion 31 can be arbitrarily changed. In the first example, a portion other than the thick portion 34 in the predetermined region R is formed by the thickness T1 of the thin portion 32. In this case, the portion of the predetermined region R other than the thick portion 34 corresponds to the thin portion. In the second example, the first mounting portion 22 in the solid portion 31 and the portion other than the thick portion 34 in the predetermined region R may be formed by the thickness T1 of the thin portion 32. In this case, the first mounting portion 22 and the portion other than the thick portion 34 in the predetermined region R correspond to the thin portion. In short, it suffices that at least a part of the solid portion 31 that is farther from the foamed portion 30 than the boundary portion 33 is formed to have a thin-walled portion.

・上記実施形態において、樹脂成形品２０には、ドア移動装置４０、窓ガラス昇降装置５０、及びドア開閉装置６０とは別の装置が取り付けられてもよい。例えば、樹脂成形品２０には、ドア移動用モータ４６、窓ガラス昇降用モータ５５、及び電動ロック装置６３の少なくとも１つに電力を供給する給電装置、及び音響用のスピーカユニットの少なくとも一方が取り付けられてもよい。 -In the above embodiment, the resin molded product 20 may be equipped with a device other than the door moving device 40, the window glass raising / lowering device 50, and the door opening / closing device 60. For example, at least one of a door moving motor 46, a window glass elevating motor 55, a power supply device that supplies electric power to at least one of the electric lock device 63, and a speaker unit for sound is attached to the resin molded product 20. May be done.

１…車両ドア、１０…ドアモジュール、２０…樹脂成形品、２１…本体部、２２…第１取付部（取付部）、２３…第２取付部（取付部）、３０…発泡部、３１…ソリッド部、３１Ｘ…一方側の面、３１Ｙ…他方側の面、３２…薄肉部、３２Ａ…傾斜面、３２Ｃ…曲面、３２Ｅ…傾斜面、３３…境界部分、３４…厚肉部、４０…ドア移動装置（駆動部品）、Ｒ…所定領域、Ｔ１…薄肉部の厚さ、Ｔ２…発泡部の厚さ、Ｔ３…厚肉部の厚さ。
1 ... Vehicle door, 10 ... Door module, 20 ... Resin molded product, 21 ... Main body, 22 ... First mounting part (mounting part), 23 ... Second mounting part (mounting part), 30 ... Foaming part, 31 ... Solid part, 31X ... one side surface, 31Y ... other side surface, 32 ... thin wall part, 32A ... inclined surface, 32C ... curved surface, 32E ... inclined surface, 33 ... boundary part, 34 ... thick part, 40 ... door Moving device (driving component), R ... predetermined area, T1 ... thickness of thin-walled portion, T2 ... thickness of foamed portion, T3 ... thickness of thick-walled portion.

Claims (4)

本体部と、前記本体部と一体に設けられ、駆動部品を取付可能な取付部と、を有するパネル状の樹脂成形品であって、
前記樹脂成形品は、多数の空隙を有する発泡部と、多数の空隙を有していないソリッド部とから形成され、
前記取付部と、前記本体部における前記取付部の周囲の所定領域とは、前記ソリッド部から形成され、
前記本体部において前記所定領域と隣り合う部分は、前記発泡部から形成され、
前記ソリッド部において前記発泡部との境界部分は、前記発泡部の厚さと等しい厚肉部で形成され、
前記ソリッド部において前記厚肉部よりも前記発泡部から離れた部分は、前記発泡部の厚さよりも薄い薄肉部を有し、
前記薄肉部は、前記ソリッド部の厚さ方向における一方側の面から見て、前記所定領域において前記取付部の周囲に沿って間隔を空けて複数形成されているとともに、前記ソリッド部の厚さ方向における他方側の面から見て、前記所定領域において前記取付部の周囲に沿って間隔を空けて複数形成されており、
前記ソリッド部の前記他方側に形成された前記薄肉部と、前記ソリッド部の前記一方側に形成された前記薄肉部とは、前記取付部の周囲に沿って交互に形成されている
樹脂成形品。 A panel-shaped resin molded product having a main body portion and a mounting portion provided integrally with the main body portion and to which a drive component can be attached.
The resin molded product is formed of a foamed portion having a large number of voids and a solid portion having no large number of voids.
The mounting portion and a predetermined region around the mounting portion in the main body portion are formed from the solid portion.
The portion of the main body adjacent to the predetermined region is formed from the foamed portion.
In the solid portion, the boundary portion with the foamed portion is formed of a thick portion equal to the thickness of the foamed portion.
It said portion away from said foam portion than the thick portion in the solid portion is to have a thin walled portion than the thickness of the foam part,
A plurality of the thin-walled portions are formed at intervals along the periphery of the mounting portion in the predetermined region when viewed from one side surface in the thickness direction of the solid portion, and the thickness of the solid portion is formed. When viewed from the other side surface in the direction, a plurality of the mounting portions are formed at intervals along the periphery of the mounting portion in the predetermined region.
The thin-walled portion formed on the other side of the solid portion and the thin-walled portion formed on the one side of the solid portion are resin molded products alternately formed along the periphery of the mounting portion. .. 前記薄肉部は、前記ソリッド部の厚さ方向における一方側の面から他方側の面に向けて凹む凹部により形成され、
前記凹部は、前記一方側の面から前記他方側の面に向かうにつれて傾斜する傾斜面を有する
請求項１に記載の樹脂成形品。 The thin-walled portion is formed by recesses recessed from one side surface to the other side surface in the thickness direction of the solid portion.
The resin molded product according to claim 1, wherein the recess has an inclined surface that inclines toward the other side surface from the one side surface. 前記薄肉部は、前記ソリッド部の前記一方側の面と前記傾斜面とを繋ぐ曲面を有する
請求項２に記載の樹脂成形品。 The resin molded product according to claim 2, wherein the thin-walled portion has a curved surface connecting the one-sided surface of the solid portion and the inclined surface. 請求項１〜３のいずれか一項に記載の樹脂成形品と、
前記樹脂成形品に取り付けられた前記駆動部品と、
を備える、ドアモジュール。 The resin molded product according to any one of claims 1 to 3 and
The driving component attached to the resin molded product and
The door module.
JP2017086194A 2017-04-25 2017-04-25 Resin molded products and door modules Active JP6904041B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017086194A JP6904041B2 (en) 2017-04-25 2017-04-25 Resin molded products and door modules

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017086194A JP6904041B2 (en) 2017-04-25 2017-04-25 Resin molded products and door modules

Publications (2)

Publication Number Publication Date
JP2018183911A JP2018183911A (en) 2018-11-22
JP6904041B2 true JP6904041B2 (en) 2021-07-14

Family

ID=64356826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017086194A Active JP6904041B2 (en) 2017-04-25 2017-04-25 Resin molded products and door modules

Country Status (1)

Country Link
JP (1) JP6904041B2 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0819425A (en) * 1994-07-06 1996-01-23 Shin Etsu Polymer Co Ltd Handle of brush
JP4482443B2 (en) * 2004-12-27 2010-06-16 ダイキョーニシカワ株式会社 Plastic molded product
JP4790328B2 (en) * 2005-06-21 2011-10-12 ダイキョーニシカワ株式会社 Resin molded body
JP4773191B2 (en) * 2005-12-12 2011-09-14 ダイキョーニシカワ株式会社 Resin molded body and molding method thereof
JP4836570B2 (en) * 2005-12-26 2011-12-14 ダイキョーニシカワ株式会社 Resin panel and automobile door
JP2007223282A (en) * 2006-02-27 2007-09-06 Daikyo Nishikawa Kk Resin molding, and its molding method
JP5246711B2 (en) * 2009-06-25 2013-07-24 株式会社イノアックコーポレーション Spacer, manufacturing method thereof, and mold for molding spacer

Also Published As

Publication number Publication date
JP2018183911A (en) 2018-11-22

Similar Documents

Publication Publication Date Title
US20100263291A1 (en) Power Sliding Window Assembly With Caps
EP3754273B1 (en) Refrigerator and drawer assembly thereof
JP6094436B2 (en) Automotive glass run
JP2010179818A5 (en)
CN108909415B (en) Door assembly with carrier and intrusion prevention member
JP6904041B2 (en) Resin molded products and door modules
JP2008149739A (en) Glass run
JP4790332B2 (en) Resin molded body
JP2017041955A (en) Electric wire guide device and electric wire guide module for slide door
JP6721162B2 (en) Service hole cover and manufacturing method thereof
JP4289150B2 (en) Opening trim weather strip manufacturing method and opening trim weather strip mold apparatus
JP6364301B2 (en) Method for producing pillar garnish
CN109203403B (en) Injection molding machine
JP2017100605A (en) Reinforcing structure of vehicle backdoor inner component and manufacturing method thereof
JP4773191B2 (en) Resin molded body and molding method thereof
JP4999471B2 (en) Resin molded panel
US20090242559A1 (en) Skin for member with skin, member with skin and process for manufacturing the same
JP2007190888A (en) Resin molding
JP6148195B2 (en) Vehicle door trim
JP4201127B2 (en) Pocket structure in interior trim
JP4037279B2 (en) INJECTION MOLDING METHOD AND MOLDING MOLD THEREOF
KR102410880B1 (en) Door trim, method for manufacturing door trim and door for vehicle
US20220134973A1 (en) Door wiring module and method of manufacturing door wiring module
JPH08171Y2 (en) Car door
JP2009119755A (en) Skin molded article, method for molding skin molded article, and method for molding foamed molded member with skin

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20200310

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20210212

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20210302

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210409

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: 20210525

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20210607

R151 Written notification of patent or utility model registration

Ref document number: 6904041

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151