JPH0366176B2 - - Google Patents
Info
- Publication number
- JPH0366176B2 JPH0366176B2 JP59053127A JP5312784A JPH0366176B2 JP H0366176 B2 JPH0366176 B2 JP H0366176B2 JP 59053127 A JP59053127 A JP 59053127A JP 5312784 A JP5312784 A JP 5312784A JP H0366176 B2 JPH0366176 B2 JP H0366176B2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing metal
- resin
- metal fitting
- elastic body
- porous elastic
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/042—Reinforcement elements
- B60J5/0422—Elongated type elements, e.g. beams, cables, belts or wires
- B60J5/0438—Elongated type elements, e.g. beams, cables, belts or wires characterised by the type of elongated elements
- B60J5/0443—Beams
- B60J5/0444—Beams characterised by a special cross section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/54—Compensating volume change, e.g. retraction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/70—Completely encapsulating inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/042—Reinforcement elements
- B60J5/0422—Elongated type elements, e.g. beams, cables, belts or wires
- B60J5/0438—Elongated type elements, e.g. beams, cables, belts or wires characterised by the type of elongated elements
- B60J5/0443—Beams
- B60J5/0447—Beams formed of several elements arranged in parallel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/001—Profiled members, e.g. beams, sections
- B29L2031/003—Profiled members, e.g. beams, sections having a profiled transverse cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
＜発明の分野＞
この発明は、自動車用内装材の補強構造に関
し、特に内装材のプレス成形時における樹脂収縮
に伴う変形や補強金具の端部の突出を防止するも
のに関する。[Detailed Description of the Invention] <Field of the Invention> The present invention relates to a reinforcing structure for automobile interior materials, and in particular to one that prevents deformation due to resin shrinkage and protrusion of the ends of reinforcing metal fittings during press molding of interior materials. Regarding.
＜従来技術とその問題点＞
自動車用リアパーセルにように、荷重方向に対
して充分な効力を持たせることが必要な内装材で
は、その裏面に幅方向に沿つて１ないし複数の補
強金具が一体化されている。<Prior art and its problems> In interior materials that need to have sufficient strength in the direction of load, such as rear parcels for automobiles, one or more reinforcing metal fittings are installed on the back side along the width direction. It is integrated.
また、リアパーセルの本体部分がポリプロピレ
ン複合樹脂等のような合成樹脂により構成されて
いる場合には、一体化方法として、補強金具の下
部にボード材と同材質の樹脂材を配置し、コール
ドプレス成形により加圧することによつて、この
樹脂材と本体部分とを一体に接合し、補強金具の
外周囲を包囲する。これによつて、リアパーセル
を開けた場合に裏面に補強金具が露出しているこ
とによる見栄えに低下を解消するようにしてい
る。 In addition, if the main body part of the rear parcel is made of synthetic resin such as polypropylene composite resin, one method of integration is to place a resin material of the same material as the board material at the bottom of the reinforcing metal fittings, and cold press it. By applying pressure through molding, the resin material and the main body portion are integrally joined to surround the outer periphery of the reinforcing metal fitting. This eliminates the deterioration in appearance caused by the reinforcing metal fittings being exposed on the back surface when the rear parcel is opened.
しかしながら、この構造では、前記プレス成形
時における樹脂収縮によつてリアパーセルの本体
部分が歪んだり、あるいは補強金具の長手方向両
端縁部が樹脂材を突き破つて突出することがあ
り、歩留り低下の要因となつていた。 However, with this structure, the main body of the rear parcel may be distorted due to resin contraction during press molding, or the longitudinal ends of the reinforcing metal may protrude through the resin material, resulting in a decrease in yield. It was a contributing factor.
＜発明の目的＞
この発明は、以上のような内装材におけるプレ
ス成形時、あるいは成形後における歪みの発生、
あるいは補強金具の突出を防止し、歩留り向上を
図ることを目的とする。<Purpose of the invention> The present invention aims to solve the above-mentioned problems such as the occurrence of distortion during press molding or after molding in interior materials.
Alternatively, the purpose is to prevent protrusion of reinforcing metal fittings and improve yield.
＜発明の構成と効果＞
前記目的を達成するために、この発明は、少な
くとも補強金具の長手方向両端縁部と本体樹脂と
の間に多孔質の弾性体を介在させたことを特徴と
する。<Configuration and Effects of the Invention> In order to achieve the above object, the present invention is characterized in that a porous elastic body is interposed between at least both end edges in the longitudinal direction of the reinforcing metal fitting and the main body resin.
以上の構成によれば、プレス成形時点、あるい
はプレス成形後にリアパーセル本体樹脂が収縮し
た場合に、その収縮変形量に対応して多孔質弾性
体が収縮変形して樹脂の変形に基づく内部応力を
吸収緩和し、成形体の外形状に歪みが発生した
り、補強金具の端縁部が樹脂を破つて突出するこ
とを防止できる。このため、製品外観を損うこと
がなく、しかも製品歩留りを向上することができ
る。 According to the above configuration, when the rear parcel main body resin contracts during press molding or after press molding, the porous elastic body shrinks and deforms in accordance with the amount of shrinkage deformation, thereby reducing internal stress due to the deformation of the resin. It absorbs and relaxes, and can prevent the outer shape of the molded body from becoming distorted and the edge of the reinforcing metal fitting from breaking through the resin and protruding. Therefore, the appearance of the product is not impaired, and the product yield can be improved.
＜実施例の説明＞
第１図において符号１は補強金具を示し、補強
金具１は断面略台形の中空剛体から構成され、そ
の周縁部の一部は平坦に潰された板状部１ａとな
つている。<Description of Examples> In Fig. 1, reference numeral 1 indicates a reinforcing metal fitting, and the reinforcing metal fitting 1 is composed of a hollow rigid body having a substantially trapezoidal cross section, and a part of its peripheral edge becomes a flattened plate-like portion 1a. ing.
第２図イに示すように、補強金具１の周縁部全
周上には、板状部１ａを覆うように発泡材からな
る多孔質弾性体２が被覆され、多孔質弾性体２が
被覆された補強金具１は、第２図ロに示すよう
に、上型３ａと下型３ｂとの間でプレス成形され
る。すなわち、まず下型３ｂの凹所内に半溶融状
態の第１の樹脂材４ａを敷設し、その上に第２図
イの状態の補強金具１を位置決め載置してから、
補強金具１の上面に対してリアパーセル本体を構
成する半溶融状態の第２の樹脂材４ｂ，上型３ａ
を順次積み重ねていき、プレス成形を行なう。こ
のとき、多孔質弾性体２の反発弾性により樹脂材
４ａ，４ｂは各型３ａ，３ｂ内壁に押し付けられ
るため、各型３ａ，３ｂの内壁の形状に沿つて忠
実に成形される。第２図ハは、冷却後に離型され
た完成品を示し、多孔質弾性体２は、樹脂材４
ａ，４ｂの冷却に伴う収縮を妨げることなく、樹
脂材の収縮時に発生する内部応力によつて収縮変
形する。すなわち、多孔質弾性体２内の空隙は、
収縮力により減縮あるいは潰され、その体積が減
少する。なお、多孔質弾性体２は、樹脂材４ａ，
４ｂの収縮によつて圧縮された分だけ収縮するこ
とのみであるから、収縮率の相違に基づいて樹脂
材４ａ，４ｂと多孔質弾性体２との境界面に間隙
が発生する等の虞れはない。補強金具１の周縁部
の板状部１ａにおいては、多孔質弾性体２のクツ
シヨン作用により、板状部１ａがその先端で樹脂
を突き破ることが防止される。 As shown in FIG. 2A, a porous elastic body 2 made of a foam material is coated on the entire circumference of the reinforcing metal fitting 1 so as to cover the plate-like portion 1a. The reinforced metal fitting 1 is press-molded between an upper mold 3a and a lower mold 3b, as shown in FIG. 2B. That is, first, the first resin material 4a in a semi-molten state is laid in the recess of the lower mold 3b, and the reinforcing metal fitting 1 in the state shown in FIG. 2A is positioned and placed thereon.
The second resin material 4b in a semi-molten state and the upper mold 3a forming the rear parcel body are placed on the upper surface of the reinforcing metal fitting 1.
are stacked one after another and press-formed. At this time, the resin materials 4a, 4b are pressed against the inner walls of the respective molds 3a, 3b due to the rebound resilience of the porous elastic body 2, so that they are faithfully molded along the shape of the inner walls of the respective molds 3a, 3b. FIG. 2C shows a finished product that has been released from the mold after cooling, and the porous elastic body 2 is made of resin material 4.
The resin material shrinks and deforms due to the internal stress generated when the resin material contracts, without hindering the shrinkage of parts a and 4b as they cool. That is, the voids within the porous elastic body 2 are
It shrinks or collapses due to contraction force, and its volume decreases. Note that the porous elastic body 2 is made of resin materials 4a,
Since it only contracts by the amount compressed by the contraction of 4b, there is a risk that a gap may occur at the interface between the resin materials 4a, 4b and the porous elastic body 2 due to the difference in shrinkage rate. There isn't. In the plate-shaped portion 1a at the peripheral edge of the reinforcing metal fitting 1, the cushioning action of the porous elastic body 2 prevents the plate-shaped portion 1a from breaking through the resin at its tip.
また、樹脂材が収縮しても、それに対応して多
孔質弾性体２の収縮が行なわれるため、成形品の
平面度を保持することができる。 Further, even if the resin material contracts, the porous elastic body 2 contracts accordingly, so that the flatness of the molded product can be maintained.
第１図は補強金具の構成説明図、第２図イ，
ロ，ハは本発明の一実施例であり、第２図イは多
孔質弾性体を補強金具に被覆した状態の説明図、
第２図ロはプレス成形時の説明図、第２図ハは離
型後の完成品の構成説明図である。
１……補強金具、１ａ……板状部、２……多孔
質弾性体、３ａ，３ｂ……多孔質弾性体、４ａ，
４ｂ……樹脂材。
Figure 1 is an explanatory diagram of the structure of the reinforcing metal fittings, Figure 2 A,
B and C are one embodiment of the present invention, and FIG.
FIG. 2(b) is an explanatory diagram during press molding, and FIG. 2(c) is an explanatory diagram of the structure of the finished product after mold release. DESCRIPTION OF SYMBOLS 1... Reinforcement fitting, 1a... Plate-shaped part, 2... Porous elastic body, 3a, 3b... Porous elastic body, 4a,
4b...Resin material.
Claims (1)
被覆包囲した状態で一体にプレス成形された自動
車用内装材であつて、少なくとも前記補強金具の
長手方向両端縁部と前記合成樹脂材との間に多孔
質弾性体が介在されていることを特徴とする自動
車用内装材の補強構造。1. An interior material for an automobile that is integrally press-molded with the entire outer circumferential surface of a reinforcing metal fitting covered and surrounded by a synthetic resin material, wherein at least both longitudinal edges of the reinforcing metal fitting and the synthetic resin material A reinforcing structure for an automobile interior material, characterized in that a porous elastic body is interposed therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5312784A JPS60197444A (en) | 1984-03-19 | 1984-03-19 | Reinforcing structure of car interior member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5312784A JPS60197444A (en) | 1984-03-19 | 1984-03-19 | Reinforcing structure of car interior member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60197444A JPS60197444A (en) | 1985-10-05 |
| JPH0366176B2 true JPH0366176B2 (en) | 1991-10-16 |
Family
ID=12934139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5312784A Granted JPS60197444A (en) | 1984-03-19 | 1984-03-19 | Reinforcing structure of car interior member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60197444A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934953A (en) * | 1982-08-23 | 1984-02-25 | Nissan Motor Co Ltd | Trimming component for automobile and manufacture thereof |
-
1984
- 1984-03-19 JP JP5312784A patent/JPS60197444A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60197444A (en) | 1985-10-05 |
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