JP2002086493A - Resin molded object and method for molding the same - Google Patents
Resin molded object and method for molding the sameInfo
- Publication number
- JP2002086493A JP2002086493A JP2000284190A JP2000284190A JP2002086493A JP 2002086493 A JP2002086493 A JP 2002086493A JP 2000284190 A JP2000284190 A JP 2000284190A JP 2000284190 A JP2000284190 A JP 2000284190A JP 2002086493 A JP2002086493 A JP 2002086493A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing portion
- resin
- fiber
- resin molded
- main body
- 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.)
- Granted
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【技術分野】本発明は，本体部と補強部とが一体的に構
成された樹脂成形体及びその成形方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin molded article in which a main body and a reinforcing part are integrally formed, and a molding method therefor.
【０００２】[0002]
【従来技術】従来より，図１６に示すごとく，本体部９
１とその表面に一体的に成形された補強部９２とを有す
る樹脂成形体９がある。上記補強部９２は，上記本体部
９１において曲げ強度や引張り強度等の強度を必要とす
る方向に沿って，長尺状に形成されている。これによ
り，上記樹脂成形体９の強度を向上させている。2. Description of the Related Art Conventionally, as shown in FIG.
There is a resin molded body 9 having a reinforcing member 1 and a reinforcing portion 92 integrally formed on the surface thereof. The reinforcing portion 92 is formed in a long shape along a direction requiring strength such as bending strength and tensile strength in the main body portion 91. Thereby, the strength of the resin molded body 9 is improved.
【０００３】しかし，かかる形状的な補強のみでは，大
きな荷重には耐えることが困難である。そこで，上記樹
脂成形体９を繊維含有樹脂２により構成することが考え
られる。上記樹脂成形体９を成形するに当っては，上記
本体部９１用のキャビティと補強部９２用のキャビティ
が一体的に形成された金型を用いる。そして，例えば図
１６に示す本体部９１の端部の一点Ｇに相当する位置に
設けられた上記金型のゲートから，キャビティ内に上記
繊維含有樹脂２を射出する。[0003] However, it is difficult to withstand a large load only by such a shape reinforcement. Therefore, it is conceivable that the resin molded body 9 is made of the fiber-containing resin 2. In molding the resin molded body 9, a mold in which a cavity for the main body portion 91 and a cavity for the reinforcing portion 92 are integrally formed is used. Then, the fiber-containing resin 2 is injected into the cavity from, for example, a gate of the mold provided at a position corresponding to one point G of the end of the main body 91 shown in FIG.
【０００４】[0004]
【解決しようとする課題】しかしながら，上記樹脂成形
体９には，以下の問題がある。即ち，上記のごとく，繊
維含有樹脂２を射出しても，該繊維含有樹脂２に含まれ
る繊維２１は，図１６に示すごとく配向が揃わない。そ
れ故，上記補強部９２は，長手方向に対する強度が特に
向上せず，充分な強度が得られないおそれがある。その
結果，上記樹脂成形体９の強度が充分に得られないとい
う問題がある。However, the resin molded article 9 has the following problems. That is, as described above, even if the fiber-containing resin 2 is injected, the orientation of the fibers 21 included in the fiber-containing resin 2 is not uniform as shown in FIG. Therefore, the strength of the reinforcing portion 92 in the longitudinal direction is not particularly improved, and sufficient strength may not be obtained. As a result, there is a problem that the strength of the resin molded body 9 cannot be sufficiently obtained.
【０００５】また，上記補強部を，本体部とは異なる高
強度の材料で成形することにより，樹脂成形体の強度を
向上させることが考えられる。しかし，上記樹脂成形体
の成形方法は，いわゆる２色成形方法となり，材料費，
工数の点で不利である。[0005] Further, it is conceivable to improve the strength of the resin molded body by molding the reinforcing portion with a material having a high strength different from that of the main body. However, the molding method of the above resin molded body is a so-called two-color molding method, and the material cost,
It is disadvantageous in terms of man-hours.
【０００６】本発明は，かかる従来の問題点に鑑みてな
されたもので，所望の方向に関する強度が大きく，製造
容易で安価な樹脂成形体及びその成形方法を提供しよう
とするものである。The present invention has been made in view of such conventional problems, and an object of the present invention is to provide an inexpensive resin molded body which has high strength in a desired direction, is easy to manufacture, and is inexpensive.
【０００７】[0007]
【課題の解決手段】請求項１に記載の発明は，本体部と
長尺状の補強部とからなると共に，両者は同じ繊維含有
樹脂により一体的に構成されている樹脂成形体を射出成
形する方法であって，上記本体部と上記補強部とは，い
ずれか一方を先に成形し，次いで他方を成形すると共に
両者を融着させ，かつ，上記補強部の成形に当っては，
上記補強部の長手方向に沿って上記繊維含有樹脂が流れ
るよう，上記繊維含有樹脂を射出することを特徴とする
樹脂成形体の成形方法にある。According to a first aspect of the present invention, a resin molded body which is composed of a main body and a long reinforcing portion and is integrally formed of the same fiber-containing resin is injection-molded. In the method, one of the main body and the reinforcing portion is formed first, then the other is formed and the two are fused together, and in forming the reinforcing portion,
A method of molding a resin molded body, comprising injecting the fiber-containing resin so that the fiber-containing resin flows along the longitudinal direction of the reinforcing portion.
【０００８】本発明において最も注目すべきことは，上
記本体部と長尺状の上記補強部を同じ繊維含有樹脂によ
り構成すること，上記本体部と上記補強部のいずれか一
方を先に成形し，次いで他方を成形すること，及び，上
記補強部は，長手方向に沿って繊維含有樹脂が流れるよ
う，該繊維含有樹脂を射出して成形することである。It is most remarkable in the present invention that the main body and the elongated reinforcing portion are made of the same fiber-containing resin, and one of the main body and the reinforcing portion is molded first. Then, the other is molded, and the reinforcing portion is formed by injecting the fiber-containing resin so that the resin flows along the longitudinal direction.
【０００９】上記繊維含有樹脂としては，例えば，ガラ
ス繊維，炭素繊維等を含有したポリプロピレン樹脂やポ
リアミド樹脂がある。また，上記繊維含有樹脂に含まれ
る繊維は，長繊維であっても短繊維であってもよいが，
長繊維であることが，補強部の強度の観点から，より好
ましい。また，上記繊維含有樹脂は，繊維含有量が１０
〜５０重量％であることが好ましい。これにより，確実
に補強部の強度を向上させることができる。Examples of the fiber-containing resin include a polypropylene resin and a polyamide resin containing glass fiber, carbon fiber and the like. The fibers contained in the fiber-containing resin may be long fibers or short fibers.
Long fibers are more preferable from the viewpoint of the strength of the reinforcing portion. The fiber-containing resin has a fiber content of 10%.
Preferably, it is about 50% by weight. Thereby, the strength of the reinforcing portion can be reliably improved.
【００１０】上記樹脂成形体の成形方法においては，例
えば移動型を有する金型を用いる。そして，上記本体部
を先に成形する場合には，まず上記金型において，本体
部の成形用の第１キャビティを形成しておき，そこへ上
記繊維含有樹脂を射出する。次いで，上記金型における
移動型を移動させることにより，補強部の成形用の第２
キャビティを形成し，そこへ新たに繊維含有樹脂を射出
する。In the method of molding a resin molded body, for example, a mold having a movable mold is used. When the main body is molded first, a first cavity for molding the main body is formed in the mold, and the fiber-containing resin is injected into the first cavity. Next, by moving the movable mold in the mold, a second mold for forming the reinforcing portion is formed.
A cavity is formed, and a fiber-containing resin is newly injected into the cavity.
【００１１】次に，本発明の作用効果につき説明する。
上記樹脂成形体の成形方法においては，上記本体部と長
尺状の上記補強部を同じ繊維含有樹脂により構成する。
そのため，上記樹脂成形体を安価かつ容易に製造するこ
とができる。Next, the operation and effect of the present invention will be described.
In the method of molding a resin molded body, the main body and the elongated reinforcing portion are made of the same fiber-containing resin.
Therefore, the resin molded body can be easily manufactured at low cost.
【００１２】また，上記樹脂成形体を成形するに当って
は，上記本体部と上記補強部のいずれか一方を先に成形
し，次いで他方を成形する。そのため，長尺状の補強部
を成形する際には，上記繊維含有樹脂が，金型における
上記本体部を成形するための第１キャビティに流入する
ことはなく，上記補強部を成形するための長尺状の第２
キャビティにおいて流動する。それ故，上記繊維含有樹
脂の流動方向を制御しやすくなる。In molding the resin molded body, one of the main body and the reinforcing portion is molded first, and then the other is molded. Therefore, when forming the long reinforcing portion, the fiber-containing resin does not flow into the first cavity for forming the main body portion in the mold, and the resin for forming the reinforcing portion does not flow. Elongated second
Flow in the cavity. Therefore, it becomes easy to control the flow direction of the fiber-containing resin.
【００１３】そして，上記繊維含有樹脂を射出する際に
は，補強部の長手方向に沿って繊維含有樹脂が流れるよ
うにする。そのため，繊維含有樹脂に含まれる繊維の多
くが，上記補強部の長手方向に配向する。特に，上記補
強部の表層に近い部分において，上記繊維の配向が揃
う。それ故，上記補強部は，長手方向に関して，曲げ強
度や引張り強度等の強度を大きくすることができる。そ
の結果，上記樹脂成形体の所望する方向に関する強度を
向上させることができる。When injecting the fiber-containing resin, the fiber-containing resin is caused to flow along the longitudinal direction of the reinforcing portion. Therefore, many of the fibers contained in the fiber-containing resin are oriented in the longitudinal direction of the reinforcing portion. In particular, the orientation of the fibers is uniform in a portion of the reinforcing portion near the surface layer. Therefore, the reinforcing portion can increase strength such as bending strength and tensile strength in the longitudinal direction. As a result, the strength of the resin molded body in a desired direction can be improved.
【００１４】以上のごとく，本発明によれば，所望の方
向に関する強度が大きく，製造容易で安価な樹脂成形体
の成形方法を提供することができる。As described above, according to the present invention, it is possible to provide an easy-to-manufacture and inexpensive molding method for a resin molded product having high strength in a desired direction.
【００１５】次に，請求項２に記載の発明のように，上
記補強部の成形に当っては，該補強部の長手方向の端部
に相当する部分から上記繊維含有樹脂を射出することが
好ましい。上記補強部の長手方向の端部に相当する部分
とは，金型を用いて上記樹脂成形体を成形する場合，そ
の金型のキャビティにおいて，上記補強部の長手方向の
端部が位置する部分をいう。Next, in forming the reinforcing portion, the fiber-containing resin is injected from a portion corresponding to an end in the longitudinal direction of the reinforcing portion. preferable. The portion corresponding to the longitudinal end of the reinforcing portion is the portion where the longitudinal end of the reinforcing portion is located in the cavity of the mold when the resin molded body is molded using a mold. Say.
【００１６】これにより，一層容易かつ確実に，上記補
強部を構成する繊維含有樹脂の繊維の配向を，上記補強
部の長手方向に沿わせることができる。それ故，一層容
易かつ確実に上記補強部の長手方向の強度を大きくし，
ひいては上記樹脂成形体の所望の方向に関する強度を大
きくすることができる。Thus, the orientation of the fibers of the fiber-containing resin constituting the reinforcing portion can be more easily and reliably aligned along the longitudinal direction of the reinforcing portion. Therefore, it is possible to more easily and surely increase the longitudinal strength of the reinforcing portion,
As a result, the strength of the resin molded body in a desired direction can be increased.
【００１７】次に，請求項３に記載の発明のように，上
記補強部は，上記本体部よりも先に成形することが好ま
しい。これにより，上記本体部と上記補強部との接合を
一層強固にすることができる。Next, it is preferable that the reinforcing portion is formed earlier than the main body portion. Thereby, the joining between the main body and the reinforcing portion can be further strengthened.
【００１８】その理由は次の通りである。上記成形方法
によれば，上記補強部がある程度固化した後に，本体部
の成型用の繊維含有樹脂を射出することとなる。ここ
で，上記補強部は，通常，本体部よりも体積が小さい。
そのため，ある程度固化した補強部に，本体部の成形用
の高温の繊維含有樹脂が接触したとき，接触部分付近に
おける単位体積当りに受熱する熱量が大きく，上記補強
部は再溶融しやすい。また，補強部の角部にも高温の繊
維含有樹脂が接触するが，該角部は特に単位体積あたり
の受熱量が大きく再溶融しやすい。それ故，本体部と補
強部とが一層確実に融着し，両者は強固に接合する。The reason is as follows. According to the molding method, after the reinforcing portion is solidified to some extent, the fiber-containing resin for molding the main body is injected. Here, the reinforcing portion usually has a smaller volume than the main body.
For this reason, when a high-temperature fiber-containing resin for molding of the main body comes into contact with the solidified reinforcing portion to a certain extent, a large amount of heat is received per unit volume in the vicinity of the contact portion, and the reinforcing portion is easily re-melted. The high-temperature fiber-containing resin also comes into contact with the corners of the reinforcing portion, but the corners are particularly large in the amount of heat received per unit volume and are easily melted. Therefore, the main body portion and the reinforcing portion are more reliably fused and the two are firmly joined.
【００１９】請求項４に記載の発明のように，本体部と
長尺状の補強部とからなると共に，両者は同じ繊維含有
樹脂により一体的に構成されている樹脂成形体であっ
て，上記補強部は，繊維含有樹脂に含まれた繊維が上記
補強部の長手方向に沿って配向した配向層を有すること
を特徴とする樹脂成形体がある。According to a fourth aspect of the present invention, there is provided a resin molded body comprising a main body portion and an elongated reinforcing portion, both of which are integrally formed of the same fiber-containing resin. There is a resin molded body characterized in that the reinforcing portion has an orientation layer in which fibers contained in the fiber-containing resin are oriented along the longitudinal direction of the reinforcing portion.
【００２０】次に，本発明の樹脂成形体の作用効果につ
き説明する。上記補強部は，上記のごとく，長尺状の補
強部の長手方向に沿って，繊維が配向した配向層を有す
る。そのため，上記補強部は，長手方向に関して，曲げ
強度や引張り強度等の強度が大きい。その結果，上記樹
脂成形体の所望する方向に関する強度を向上させること
ができる。また，上記樹脂成形体は，上記本体部と上記
補強部とを同じ繊維含有樹脂によって構成しているた
め，容易かつ安価に製造することができる。Next, the function and effect of the resin molded article of the present invention will be described. As described above, the reinforcing portion has the alignment layer in which the fibers are oriented along the longitudinal direction of the long reinforcing portion. For this reason, the reinforcing portion has high strength such as bending strength and tensile strength in the longitudinal direction. As a result, the strength of the resin molded body in a desired direction can be improved. Further, the resin molded body can be easily and inexpensively manufactured because the main body portion and the reinforcing portion are made of the same fiber-containing resin.
【００２１】以上のごとく，本発明によれば，所望の方
向に関する強度が大きく，製造容易で安価な樹脂成形体
を提供することができる。As described above, according to the present invention, it is possible to provide an inexpensive resin molded product which has high strength in a desired direction, is easy to manufacture, and is inexpensive.
【００２２】次に，請求項５に記載の発明のように，上
記配向層は，上記補強部の表面から０．５ｍｍの厚みの
範囲に形成されていることが好ましい。これにより，確
実に，所望の方向に関する強度が大きい樹脂成形体を得
ることができる。Next, it is preferable that the orientation layer is formed in a thickness range of 0.5 mm from the surface of the reinforcing portion. Thereby, a resin molded body having a large strength in a desired direction can be reliably obtained.
【００２３】次に，請求項６に記載の発明のように，上
記配向層の上記繊維は，上記補強部の長手方向の軸線に
対する傾斜角度が４５°以下のものが，５０％以上を占
めていることが好ましい。これにより，所望の方向に関
する強度が一層大きい樹脂成形体を得ることができる。
上記傾斜角度４５°以下の繊維が５０％未満の場合に
は，補強部の強度が不充分となるおそれがある。Next, as in the invention according to claim 6, the fibers of the orientation layer having an inclination angle of 45 ° or less with respect to the longitudinal axis of the reinforcing portion account for 50% or more. Is preferred. This makes it possible to obtain a resin molded body having higher strength in a desired direction.
If the number of fibers having an inclination angle of 45 ° or less is less than 50%, the strength of the reinforcing portion may be insufficient.
【００２４】[0024]
【発明の実施の形態】実施形態例１ 本発明の実施形態例にかかる樹脂成形体及びその成形方
法につき，図１〜図６を用いて説明する。本例の樹脂成
形体１は，図１に示すごとく，平板状の本体部１１と長
尺状の補強部１２とからなると共に，両者は同じ繊維含
有樹脂２により一体的に構成されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 A resin molded product and a molding method according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the resin molded body 1 of this example includes a flat main body 11 and a long reinforcing part 12, and both are integrally formed of the same fiber-containing resin 2.
【００２５】上記補強部１２は，図２（Ａ），（Ｂ）に
示すごとく，繊維含有樹脂２に含まれた繊維２１が上記
補強部１２の長手方向に沿って配向した配向層１２１を
有する。また，上記配向層１２１は，図２（Ａ），
（Ｂ）に示すごとく，上記補強部１２の表面１２２から
の厚みｄが０．５ｍｍの範囲に形成されている。As shown in FIGS. 2A and 2B, the reinforcing portion 12 has an alignment layer 121 in which the fibers 21 contained in the fiber-containing resin 2 are oriented along the longitudinal direction of the reinforcing portion 12. . Further, the alignment layer 121 is formed as shown in FIG.
As shown in (B), the thickness d from the surface 122 of the reinforcing portion 12 is formed in a range of 0.5 mm.
【００２６】また，図３に示すごとく，上記配向層１２
１の上記繊維２１は，上記補強部１２の長手方向の軸線
Ｘ−Ｘに対する傾斜角度θが４５°以下のものが，約５
０％を占めている。図３に示す一点鎖線Ｘ0−Ｘ0は，上
記軸線Ｘ−Ｘと平行な線である。また，図４に示すごと
く，上記本体部１１と補強部１２とは，その界面におい
て融着している。Further, as shown in FIG.
The fiber 21 having an inclination angle θ of 45 ° or less with respect to the longitudinal axis XX of the reinforcing portion 12 is approximately 5 °.
It accounts for 0%. An alternate long and short dash line X 0 -X 0 shown in FIG. 3 is a line parallel to the axis XX. Further, as shown in FIG. 4, the main body 11 and the reinforcing portion 12 are fused at the interface.
【００２７】上記繊維含有樹脂２は，ガラス繊維を含有
したポリプロピレン樹脂である。即ち，上記繊維２１は
ガラス繊維である。また，上記繊維含有樹脂２は，繊維
含有量が約４０重量％である。The fiber-containing resin 2 is a polypropylene resin containing glass fibers. That is, the fibers 21 are glass fibers. The fiber-containing resin 2 has a fiber content of about 40% by weight.
【００２８】次に，上記樹脂成形体１の成形方法につ
き，図５，図６を用いて説明する。上記樹脂成形体１
は，図５に示すごとく，上記本体部１１を先に成形し，
次いで上記補強部１２を成形すると共に両者を融着させ
る。上記補強部１２の成形に当っては，上記補強部１２
の長手方向に沿って上記繊維含有樹脂２が流れるよう，
該繊維含有樹脂２を射出する。その手段としては，図１
に示す上記補強部１２の長手方向の端部１２９に相当す
る部分から，上記繊維含有樹脂２を射出する。Next, a method for molding the resin molded body 1 will be described with reference to FIGS. The above resin molded body 1
As shown in FIG. 5, the main body 11 is molded first,
Next, the reinforcing portion 12 is formed and both are fused. In forming the reinforcing portion 12, the reinforcing portion 12 is formed.
So that the fiber-containing resin 2 flows along the longitudinal direction of
The fiber-containing resin 2 is injected. The means is as follows:
The fiber-containing resin 2 is injected from a portion corresponding to the longitudinal end 129 of the reinforcing portion 12 shown in FIG.
【００２９】即ち，図６に示すごとく，上記樹脂成形体
１を成形するための金型３における，上記補強部の端部
１２９に対応する位置に設けた第２ゲート３７から繊維
含有樹脂２を射出する。なお，上記繊維含有樹脂２は，
上記補強部１２の上部１２８に相当する部分から射出し
てもよい。この場合にも，上記繊維含有樹脂２が上記補
強部１２の長手方向に沿って流れるよう上記繊維含有樹
脂２を射出する。That is, as shown in FIG. 6, the fiber-containing resin 2 is discharged from the second gate 37 provided at a position corresponding to the end 129 of the reinforcing portion in the mold 3 for molding the resin molded body 1. Inject. The fiber-containing resin 2 is
The injection may be performed from a portion corresponding to the upper portion 128 of the reinforcing portion 12. Also in this case, the fiber-containing resin 2 is injected so that the fiber-containing resin 2 flows along the longitudinal direction of the reinforcing portion 12.
【００３０】上記樹脂成形体１の成形方法においては，
図５，図６に示すごとく，移動型３１を有する金型３を
用いる。即ち，該金型３は，下型３２と上型３３とを有
し，該上型３３は，上下にスライド移動可能な上記移動
型３１を有する。そして，上記移動型３１を最下端に下
した状態で，上記下型３２と上型３３とを組合せること
により，図５（Ａ）に示すごとく，上記本体部１１を形
成するための第１キャビティ３４が形成される。また，
この状態から，上記移動型３１を上方へスライド移動さ
せることにより，図５（Ｃ），図６に示すごとく，上記
補強部１２を成形するための第２キャビティ３５が形成
される。In the method for molding the resin molded body 1,
As shown in FIGS. 5 and 6, a mold 3 having a movable mold 31 is used. That is, the mold 3 has a lower mold 32 and an upper mold 33, and the upper mold 33 has the movable mold 31 that can slide up and down. Then, by combining the lower die 32 and the upper die 33 with the movable die 31 lowered to the lowermost end, as shown in FIG. A cavity 34 is formed. Also,
By sliding the movable die 31 upward from this state, as shown in FIGS. 5C and 6, a second cavity 35 for molding the reinforcing portion 12 is formed.
【００３１】また，図６に示すごとく，上記下型３２と
上型３３との間には，外部から上記第１キャビティ３４
の長手方向の端部３４１に通じる第１ゲート３６と，該
第１ゲート３６と略反対側であって，上記第２キャビテ
ィ３５の長手方向の端部３５１に通じる第２ゲート３７
が形成されている。As shown in FIG. 6, the first cavity 34 is externally provided between the lower mold 32 and the upper mold 33.
A first gate 36 communicating with a longitudinal end 341 of the second cavity 35, and a second gate 37 substantially opposite to the first gate 36 and communicating with a longitudinal end 351 of the second cavity 35.
Are formed.
【００３２】上記樹脂成形体１を成形するに当っては，
まず，図５（Ａ）に示すごとく，第１キャビティ３４を
形成しておき，そこへ上記繊維含有樹脂２を上記第１ゲ
ート３６から射出する。これにより，図５（Ｂ）に示す
ごとく，第１キャビティ３４において，上記本体部１１
が成形される。In molding the resin molded body 1,
First, as shown in FIG. 5A, a first cavity 34 is formed, and the fiber-containing resin 2 is injected into the first cavity 34 from the first gate 36. As a result, as shown in FIG.
Is molded.
【００３３】次いで，上記第１キャビティ３４への繊維
含有樹脂２の射出完了の数秒後に，図５（Ｃ）に示すご
とく，上記移動型３１を上方へスライド移動させる。こ
れにより第２キャビティ３５を形成し，そこへ新たに繊
維含有樹脂２を射出する。このとき，上記繊維含有樹脂
２は，図６に示すごとく，上記第２キャビティ３５の長
手方向に沿って流れ，該第２キャビティ３５を満たす。
これにより，図５（Ｄ）に示すごとく，第２キャビティ
３５において，上記補強部１２が形成される。Next, several seconds after the completion of the injection of the fiber-containing resin 2 into the first cavity 34, the movable mold 31 is slid upward as shown in FIG. 5C. Thus, the second cavity 35 is formed, into which the fiber-containing resin 2 is newly injected. At this time, the fiber-containing resin 2 flows along the longitudinal direction of the second cavity 35 and fills the second cavity 35 as shown in FIG.
Thereby, as shown in FIG. 5D, the reinforcing portion 12 is formed in the second cavity 35.
【００３４】また，このとき，先に成形され，一旦温度
が下がってある程度固化した本体部１１に，第２キャビ
ティ３５に射出された高温の繊維含有樹脂２が接触する
ことにより，接触部分付近が若干溶融する。そして，そ
の溶融部分が，その後，上記第２キャビティ３５に射出
された繊維含有樹脂２と共に冷却され固化することによ
り，図４に示すごとく両者は融着する。以上により，図
１に示すような上記樹脂成形体１が一体的に得られる。At this time, the high-temperature fiber-containing resin 2 injected into the second cavity 35 comes into contact with the main body 11 which has been molded first and once cooled down to some extent, so that the vicinity of the contact portion is reduced. Melts slightly. Then, the molten portion is cooled and solidified together with the fiber-containing resin 2 injected into the second cavity 35, so that the two are fused as shown in FIG. Thus, the resin molded body 1 as shown in FIG. 1 is integrally obtained.
【００３５】次に，本例の作用効果につき説明する。上
記樹脂成形体１の成形方法においては，上記本体部１１
と長尺状の上記補強部１２を同じ繊維含有樹脂２により
構成する。そのため，上記樹脂成形体１を安価かつ容易
に製造することができる。Next, the operation and effect of this embodiment will be described. In the method for molding the resin molded body 1, the main body 11
And the long reinforcing portion 12 is made of the same fiber-containing resin 2. Therefore, the resin molded body 1 can be easily manufactured at low cost.
【００３６】また，上記樹脂成形体１を成形するに当っ
ては，上記本体部１１を先に成形し，次いで上記補強部
１２を成形する。そのため，長尺状の補強部１２を成形
する際には，上記繊維含有樹脂２が，第１キャビティ３
４に流入することはなく，長尺状の第２キャビティ３５
において流動する。それ故，上記繊維含有樹脂２の流動
方向を制御しやすくなる。In molding the resin molded body 1, the main body 11 is molded first, and then the reinforcing portion 12 is molded. Therefore, when forming the elongated reinforcing portion 12, the fiber-containing resin 2 is used for the first cavity 3.
4 and does not flow into the long second cavity 35.
Flows at Therefore, the flow direction of the fiber-containing resin 2 can be easily controlled.
【００３７】そして，上記繊維含有樹脂２を射出する際
には，図６に示すごとく，補強部１２の長手方向に沿っ
て繊維含有樹脂２が流れるようにする。そのため，図
１，図２（Ｂ）に示すごとく，繊維含有樹脂２に含まれ
る繊維２１の多くが，上記補強部１２の長手方向に配向
する。特に，図２（Ａ），（Ｂ）に示すごとく，上記補
強部１２の表層に近い部分，即ち上記配向層１２１にお
いて，上記繊維２１の配向が揃う。When injecting the fiber-containing resin 2, the fiber-containing resin 2 is caused to flow along the longitudinal direction of the reinforcing portion 12, as shown in FIG. Therefore, as shown in FIGS. 1 and 2 (B), most of the fibers 21 contained in the fiber-containing resin 2 are oriented in the longitudinal direction of the reinforcing portion 12. In particular, as shown in FIGS. 2A and 2B, the orientation of the fibers 21 is uniform in a portion near the surface layer of the reinforcing portion 12, that is, in the orientation layer 121.
【００３８】即ち，上記補強部１２は，長尺状の長手方
向に沿って繊維２１が配向した配向層１２１を有する
（図２（Ａ），（Ｂ））。そのため，上記補強部１２
は，長手方向に関して，曲げ強度や引張り強度等の強度
が大きい。その結果，上記樹脂成形体１の所望する方向
に関する強度を向上させることができる。また，上記配
向層１２１は，図２（Ａ），（Ｂ）に示すごとく，上記
補強部１２の表面１２２からの厚みｄが約０．５ｍｍの
範囲に形成されているため，確実に，所望の方向に関す
る強度が大きい樹脂成形体１を得ることができる。That is, the reinforcing portion 12 has an orientation layer 121 in which the fibers 21 are oriented along a long longitudinal direction (FIGS. 2A and 2B). Therefore, the reinforcing portion 12
Has a large strength such as bending strength and tensile strength in the longitudinal direction. As a result, the strength of the resin molded body 1 in a desired direction can be improved. Further, as shown in FIGS. 2A and 2B, the alignment layer 121 has a thickness d from the surface 122 of the reinforcing portion 12 within a range of about 0.5 mm. Resin molded body 1 having a large strength in the direction of.
【００３９】上記配向層１２１の上記繊維２１は，上記
補強部１２の長手方向の軸線Ｘ−Ｘに対する傾斜角度が
４５°以下のものが，約５０％を占めている。そのた
め，上記補強部１２の長手方向の強度は一層大きく，所
望の方向に関する強度が一層大きい樹脂成形体１を得る
ことができる。About 50% of the fibers 21 of the alignment layer 121 have an inclination angle of 45 ° or less with respect to the longitudinal axis XX of the reinforcing portion 12. Therefore, the strength of the reinforcing portion 12 in the longitudinal direction is greater, and the resin molded body 1 having a greater strength in a desired direction can be obtained.
【００４０】以上のごとく，本発明によれば，所望の方
向に関する強度が大きく，製造容易で安価な樹脂成形体
及びその成形方法を提供することができる。As described above, according to the present invention, it is possible to provide an inexpensive resin molded body which has high strength in a desired direction, is easy to manufacture, and is inexpensive.
【００４１】実施形態例２ 本例は，図７，図８に示すごとく，補強部１２の断面形
状を逆Ｔ字状とすると共に，該補強部１２を本体部１１
よりも先に成形した樹脂成形体１０及びその成形方法の
例である。上記補強部１２は，図７に示すごとく，長手
方向と垂直な面による断面の形状が逆Ｔ字状である。Embodiment 2 In this embodiment, as shown in FIGS. 7 and 8, the cross-sectional shape of the reinforcing portion 12 is inverted T-shaped, and the reinforcing portion 12 is
It is an example of a resin molded body 10 molded earlier than the above and a molding method thereof. As shown in FIG. 7, the reinforcing section 12 has an inverted T-shape in a cross section taken along a plane perpendicular to the longitudinal direction.
【００４２】上記樹脂成形体１０の成形に当っては，図
８に示す金型３０を用いる。該金型３０は，下型３２と
上型３３とを有し，上記下型３２は，上下にスライド移
動可能な移動型３１を有する。上記樹脂成形体１０を成
形するに当っては，まず，図８（Ａ）に示すごとく，移
動型３１を上端に配置した状態で，下型３２と上型３３
とを組合せる。これにより，上記補強部１２を成形する
ための第２キャビティ３５が形成される。In molding the resin molded body 10, a mold 30 shown in FIG. 8 is used. The mold 30 has a lower mold 32 and an upper mold 33, and the lower mold 32 has a movable mold 31 that can slide up and down. In molding the resin molded body 10, first, as shown in FIG. 8A, the lower mold 32 and the upper mold 33 are placed with the movable mold 31 disposed at the upper end.
And. Thereby, a second cavity 35 for forming the reinforcing portion 12 is formed.
【００４３】そして，該第２キャビティ３５に上記繊維
含有樹脂２を射出する（図８（Ｂ））。第２キャビティ
３５への繊維含有樹脂２の射出完了の数秒後に，上記移
動型３１を下方へスライド移動させる。これにより，図
８（Ｃ）に示すごとく，上記本体部１１を成形するため
の第１キャビティ３４が形成される。Then, the fiber-containing resin 2 is injected into the second cavity 35 (FIG. 8B). A few seconds after the injection of the fiber-containing resin 2 into the second cavity 35 is completed, the movable mold 31 is slid downward. Thereby, as shown in FIG. 8C, a first cavity 34 for molding the main body 11 is formed.
【００４４】次いで，この第１キャビティ３４に，新た
に繊維含有樹脂２を射出する。これにより，図８（Ｄ）
に示すごとく，上記本体部１１が成形されると共に，該
本体部１１は，既に成形されている補強部１２とその接
触面において融着する。これにより，図７に示す樹脂成
形体１０が一体的に成形される。その他は，実施形態例
１と同様である。Next, the fiber-containing resin 2 is newly injected into the first cavity 34. As a result, FIG.
As shown in the figure, the main body 11 is molded, and the main body 11 is fused to the reinforcing part 12 already formed at the contact surface. Thereby, the resin molded body 10 shown in FIG. 7 is integrally molded. Other configurations are the same as those of the first embodiment.
【００４５】次に，本例の作用効果につき説明する。本
例の樹脂成形体１０は，上述のごとく，補強部１２の断
面形状が逆Ｔ字状である。そして，その底面部１２４が
本体部１１と融着する。それ故，上記補強部１２と本体
部１１との界面の面積が大きいため，両者は一層強固に
接合する。Next, the operation and effect of this embodiment will be described. As described above, in the resin molded body 10 of this example, the cross-sectional shape of the reinforcing portion 12 is an inverted T-shape. Then, the bottom surface portion 124 is fused with the main body portion 11. Therefore, since the area of the interface between the reinforcing portion 12 and the main body 11 is large, the two are more strongly joined.
【００４６】また，上記補強部１２を先に成形し，次い
で上記本体部１１を成形するため，上記本体部１１と上
記補強部１２との接合を一層強固にすることができる。
その理由は次の通りである。上記成形方法によれば，上
記補強部１１がある程度固化した後に，本体部１１の成
型用の繊維含有樹脂２を射出する。ここで，上記補強部
１２は本体部１１よりも体積が小さい。Since the reinforcing portion 12 is formed first and then the main body 11 is formed, the joining between the main body 11 and the reinforcing portion 12 can be further strengthened.
The reason is as follows. According to the molding method, after the reinforcing portion 11 has been solidified to some extent, the fiber-containing resin 2 for molding the main body 11 is injected. Here, the reinforcing portion 12 has a smaller volume than the main body portion 11.
【００４７】そのため，ある程度固化した補強部１２
に，本体部１１の成形用の高温の繊維含有樹脂２が接触
したとき，接触部分付近における単位体積当りに受熱す
る熱量が大きく，上記補強部１２は再溶融しやすい。ま
た，補強部１２の角部１２３にも高温の繊維含有樹脂２
が接触するが，該角部１２３は特に単位体積あたりの受
熱量が大きく再溶融しやすい。それ故，本体部１１と補
強部１２とが一層確実に融着し，両者は強固に接合す
る。その他，実施形態例１と同様の作用効果を有する。Therefore, the reinforcing portion 12 which has been solidified to some extent
Then, when the high-temperature fiber-containing resin 2 for molding of the main body 11 comes into contact, the amount of heat received per unit volume in the vicinity of the contact portion is large, and the reinforcing portion 12 is easily remelted. Also, the high temperature fiber-containing resin 2
However, the corner 123 receives a large amount of heat per unit volume, and is likely to be re-melted. Therefore, the main body portion 11 and the reinforcing portion 12 are more reliably fused and the two are firmly joined. In addition, the third embodiment has the same functions and effects as the first embodiment.
【００４８】実施形態例３ 本例は，図９〜図１２に示すごとく，補強部１２の形
状，及び補強部１２と本体部１１との接合界面の形状
を，種々に変化させた樹脂成形体１ａ〜１ｋの例であ
る。以下に，それぞれの形状の特徴と，実施形態例１の
樹脂成形体と比較した利点を紹介する。Embodiment 3 As shown in FIGS. 9 to 12, this embodiment is a resin molded product in which the shape of the reinforcing portion 12 and the shape of the joint interface between the reinforcing portion 12 and the main body 11 are variously changed. It is an example of 1a-1k. In the following, features of each shape and advantages compared with the resin molded body of the first embodiment will be introduced.
【００４９】図９（Ａ）に示す樹脂成形体１ａは，補強
部１２の下端部に凸部１２ａを設け，該凸部１２ａを本
体部１１に食い込ませた形状としている。これにより，
上記本体部１１と補強部１２との接合強度が一層向上す
る。The resin molded body 1 a shown in FIG. 9A has a shape in which a convex portion 12 a is provided at the lower end of the reinforcing portion 12, and the convex portion 12 a is cut into the main body 11. This gives
The joint strength between the main body 11 and the reinforcing portion 12 is further improved.
【００５０】図９（Ｂ）に示す樹脂成形体１ｂは，補強
部１２の形状は実施形態例１と同様であるが，その下端
部を本体部１１に食い込ませた形状である。この樹脂成
形体１ｂも，上述した樹脂製形体１ａと同様に，上記本
体部１１と補強部１２との接合強度が大きい。The resin molded body 1b shown in FIG. 9B has the same shape of the reinforcing portion 12 as that of the first embodiment, but has a shape in which the lower end portion is cut into the main body portion 11. This resin molded body 1b also has a large bonding strength between the main body 11 and the reinforcing part 12, similarly to the resin molded body 1a described above.
【００５１】図９（Ｃ）に示す樹脂成形体１ｃは，補強
部１２の形状を略正四角柱状とし，その下端部を本体部
１１に食い込ませた形状である。この場合には，上記と
同様，上記本体部１１と補強部１２との接合強度が向上
するとともに，樹脂成形体１ｃの小型化，薄型化を図る
こともできる。The resin molded body 1c shown in FIG. 9 (C) has a shape in which the reinforcing portion 12 has a substantially square prism shape and the lower end portion is cut into the main body portion 11. In this case, similarly to the above, the joining strength between the main body 11 and the reinforcing portion 12 is improved, and the size and thickness of the resin molded body 1c can be reduced.
【００５２】図１０（Ｄ）に示す樹脂成形体１ｄは，長
尺平板状の補強部１２を平板状の本体部１１に平行に重
ねて接合した形状である。これにより，補強部１２と本
体部１１との接合面積を大きくし接合強度を大きくする
ことができると共に，樹脂成形体１ｄの小型化，薄型化
を図ることができる。The resin molded body 1d shown in FIG. 10D has a shape in which a long flat plate-shaped reinforcing portion 12 is overlapped and joined to the flat plate-shaped main portion 11 in parallel. Thereby, the joining area between the reinforcing portion 12 and the main body portion 11 can be increased to increase the joining strength, and the size and thickness of the resin molded body 1d can be reduced.
【００５３】図１０（Ｅ）に示す樹脂成形体１ｅは，上
記樹脂成形体１ｄと同様の補強部１２を，同様の向き
で，本体部１１に食い込ませて接合した形状である。こ
れにより，上記樹脂成形体１ｄと同様の作用効果を得る
上に，更に本体部１１と補強部１２との接合強度が大き
くなる。The resin molded body 1e shown in FIG. 10 (E) has a shape in which a reinforcing portion 12 similar to the above-mentioned resin molded body 1d is cut into the main body 11 in the same direction and joined. Accordingly, the same effect as that of the resin molded body 1d is obtained, and the bonding strength between the main body 11 and the reinforcing portion 12 is further increased.
【００５４】図１０（Ｆ）に示す樹脂成形体１ｆは，上
記樹脂成形体１ｄと同様の補強部１２を，同様の向き
で，本体部１１に更に深く食い込ませ，本体部１１の上
面と補強部１２の上面とが同一平面となるようにした例
である。これにより，更に本体部１１と補強部１２との
接合強度が大きくなるとともに，補強部１２が目立たな
くなり，外観性にも優れている。また，樹脂成形体１ｄ
の更なる小型化，薄型化を図ることができる。In the resin molded body 1f shown in FIG. 10 (F), the reinforcing portion 12 similar to the above-mentioned resin molded body 1d is bitten deeper into the main body 11 in the same direction, and the upper surface of the main body 11 is reinforced. This is an example in which the upper surface of the portion 12 is flush with the upper surface. Thereby, the joining strength between the main body 11 and the reinforcing portion 12 is further increased, and the reinforcing portion 12 becomes less conspicuous and has excellent appearance. In addition, the resin molding 1d
Can be further reduced in size and thickness.
【００５５】図１１（Ｇ）に示す樹脂成形体１ｇは，補
強部１２を断面円弧状とし，その，左右下端部１２ｇを
本体部１１に食い込ませた形状である。これにより，補
強部１２の強度が向上して，樹脂成形体１ｇの強度を向
上させることができる。また，本体部１１と補強部１２
との接合強度も大きくなる。The resin molded body 1g shown in FIG. 11 (G) has a shape in which the reinforcing portion 12 has an arc-shaped cross section, and the lower left and right ends 12g are cut into the main body 11. Thereby, the strength of the reinforcing portion 12 is improved, and the strength of the resin molded body 1g can be improved. In addition, the main body 11 and the reinforcement 12
Also, the bonding strength with the substrate increases.
【００５６】図１１（Ｈ）に示す樹脂成形体１ｈは，上
記樹脂成形体１ｄの形状の補強部１２の下端部にギザギ
ザ状部１２ｈを形成した例である。そして，該ギザギザ
状部１２ｈを本体部１１に食い込ませている。また，上
記本体部１１における上記補強部１２と反対側の面に
も，上記ギザギザ状部１２ｈに合わせた形状のギザギザ
状部１１ｈを設けている。これにより，一層，上記本体
部１１と補強部１２との接合強度を大きくすることがで
きる。The resin molded product 1h shown in FIG. 11H is an example in which a jagged portion 12h is formed at the lower end of the reinforcing portion 12 having the shape of the resin molded product 1d. The jagged portion 12h is cut into the main body 11. Also, on the surface of the main body 11 opposite to the reinforcing portion 12, a serrated portion 11h having a shape conforming to the serrated portion 12h is provided. Thereby, the joint strength between the main body 11 and the reinforcing portion 12 can be further increased.
【００５７】図１２（Ｉ）に示す樹脂成形体１ｉは，実
施形態例２と同様の形状の補強部１２を，その底面部１
２４を本体部１１に食い込ませた例である。これによ
り，実施形態例２と同様の作用効果に加え，更に上記本
体部１１と補強部１２との接合強度が大きくなる。A resin molded body 1i shown in FIG. 12 (I) has a reinforcing portion 12 having the same shape as that of the second embodiment and a bottom portion 1 thereof.
This is an example in which 24 is cut into the main body 11. Accordingly, in addition to the same operation and effect as the second embodiment, the joining strength between the main body 11 and the reinforcing portion 12 is further increased.
【００５８】図１２（Ｊ）に示す樹脂成形体１ｊは，補
強部１２の断面形状をコ字状とした例である。これによ
り，上記補強部１２の長手方向の強度が向上し，樹脂成
形体１ｊの強度が向上する。The resin molding 1j shown in FIG. 12 (J) is an example in which the cross-sectional shape of the reinforcing portion 12 is U-shaped. Thereby, the strength of the reinforcing portion 12 in the longitudinal direction is improved, and the strength of the resin molded body 1j is improved.
【００５９】図１２（Ｋ）に示す樹脂成形体１ｋは，上
記樹脂成形体１ｊと同様の形状の補強部１２を，本体部
１１に食い込ませた例である。これにより，上記樹脂成
形体１ｊの有する作用効果に加え，本体部１１と補強部
１２との接合強度が向上する。A resin molding 1k shown in FIG. 12 (K) is an example in which a reinforcing portion 12 having the same shape as that of the resin molding 1j is cut into the main body 11. Thereby, in addition to the functions and effects of the resin molded body 1j, the joining strength between the main body 11 and the reinforcing portion 12 is improved.
【００６０】以上のごとく紹介した樹脂成形体１ａ〜１
ｋについての他の構成は，実施形態例１と同様である。
また，成形方法については，樹脂成形体１ａ〜１ｈは，
実施形態例１に示した成形方法であっても，実施形態例
２に示す成形方法であってもよい。ただし，樹脂成形体
１ｉ〜１ｋは，実施形態例２に示す方法で成形する。ま
た，各樹脂成形体１ａ〜１ｋは，上記に紹介した作用効
果以外については，実施形態例１又は２と同様の作用効
果を有する。The resin moldings 1a to 1 introduced as described above
Other configurations of k are the same as those of the first embodiment.
Regarding the molding method, the resin moldings 1a to 1h
The molding method described in the first embodiment or the molding method described in the second embodiment may be used. However, the resin molded bodies 1i to 1k are molded by the method described in the second embodiment. Each of the resin molded bodies 1a to 1k has the same operation and effect as those of the first or second embodiment except for the operation and effect introduced above.
【００６１】実施形態例４ 本例は，図１３に示すごとく，自動車のフロントエンド
モジュールキャリア４に，長尺状の補強部１２を形成し
た例である。フロンエンドモジュールキャリア４は，ラ
ジエータやコンデンサ等の車両前端部品を組付けて，自
動車のフロント部のボディパネルに配設するものであ
る。Fourth Embodiment As shown in FIG. 13, this embodiment is an example in which a long reinforcing portion 12 is formed on a front end module carrier 4 of an automobile. The front end module carrier 4 is for mounting vehicle front end parts such as a radiator and a condenser, and disposed on a body panel at a front portion of an automobile.
【００６２】図１３に示すごとく，上記補強部１２は，
上記フロントエンドモジュールキャリア４の上方側に位
置し水平方向に延びる上方側梁部材４１の上面に，該上
方側梁部材４１と一体的に配設されている。即ち，該上
方側梁部材４１が，本発明における本体部１１であり，
上記上方側梁部材４１と上記補強部１２とにより本発明
の樹脂成形体１を構成している。また，上記補強部１２
の配設方向は，上記上方側梁部材４１において負荷のか
かり易い方向である左右方向に沿った方向である。その
他は，実施形態例１と同様である。As shown in FIG. 13, the reinforcing portion 12
The upper beam member 41 is disposed integrally with the upper beam member 41 located above the front end module carrier 4 and extending in the horizontal direction. That is, the upper beam member 41 is the main body 11 in the present invention,
The upper side beam member 41 and the reinforcing portion 12 constitute the resin molded body 1 of the present invention. In addition, the reinforcing portion 12
Is a direction along the left-right direction which is a direction in which a load is easily applied to the upper beam member 41. Other configurations are the same as those of the first embodiment.
【００６３】この場合には，負荷のかかり易い左右方向
に関して上記上方側梁部材４１の強度が向上する。その
結果，強度の大きいフロントエンドモジュールキャリア
４を得ることができる。その他，実施形態例１と同様の
作用効果を有する。In this case, the strength of the upper beam member 41 in the left-right direction where a load is easily applied is improved. As a result, a front-end module carrier 4 having high strength can be obtained. In addition, the third embodiment has the same functions and effects as the first embodiment.
【００６４】実施形態例５ 本例は，図１４（Ａ），（Ｂ）に示すごとく，樹脂製容
器５の開口部５１の全周に，補強部１１を設けた例であ
る。この場合には，上記樹脂製容器５における上記補強
部１２以外の部分が，本発明の本体部１１であり，上記
補強部１２を含めた上記樹脂製容器５が，本発明の樹脂
成形体１である。その他は，実施形態例１と同様であ
る。Fifth Embodiment As shown in FIGS. 14A and 14B, this embodiment is an example in which a reinforcing portion 11 is provided on the entire periphery of an opening 51 of a resin container 5. In this case, the portion other than the reinforcing portion 12 in the resin container 5 is the main body 11 of the present invention, and the resin container 5 including the reinforcing portion 12 is the resin molded body 1 of the present invention. It is. Other configurations are the same as those of the first embodiment.
【００６５】本例によれば，上記樹脂製容器５の開口部
５１の強度を向上させることができ，ひいては，強度の
大きい樹脂製容器５を得ることができる。その他，実施
形態例１と同様の作用効果を有する。According to the present embodiment, the strength of the opening 51 of the resin container 5 can be improved, and the resin container 5 having high strength can be obtained. In addition, the third embodiment has the same functions and effects as the first embodiment.
【００６６】実施形態例６ 本例は，図１５に示すごとく，本発明の樹脂成形体の強
度を評価した例である。即ち，まず，本発明の樹脂成形
体として，実施形態例３で示した樹脂成形体１ｆ（図１
０（Ｆ））を成形した。一方，比較例として，従来より
ある平板状の樹脂成形体を成形した。本発明の樹脂成形
体と比較例の樹脂成形体との外形は，略同じである。Embodiment 6 As shown in FIG. 15, this embodiment is an example in which the strength of the resin molded article of the present invention was evaluated. That is, first, as the resin molded article of the present invention, the resin molded article 1f (FIG.
0 (F)). On the other hand, as a comparative example, a conventional flat resin molded body was molded. The outer shapes of the resin molded article of the present invention and the resin molded article of the comparative example are substantially the same.
【００６７】次いで，本発明の樹脂成形体を，補強部が
形成されている方向に関して，曲げ弾性率を測定した。
比較例の樹脂成形体についても，同様の測定を行った。
測定結果を図１５に示す。Next, the flexural modulus of the resin molded article of the present invention was measured in the direction in which the reinforcing portion was formed.
The same measurement was performed for the resin molded body of the comparative example.
FIG. 15 shows the measurement results.
【００６８】同図より分かるように，比較例は，曲げ弾
性率が６０００ＭＰａであったのに対し，本発明の樹脂
成形体の曲げ弾性率は７６００ＭＰａであった。即ち，
上記補強部を設けることにより，樹脂成形体の曲げ弾性
率が，約１．３倍に向上したことが分かる。As can be seen from the figure, the flexural modulus of the comparative example was 6000 MPa, whereas the flexural modulus of the resin molded article of the present invention was 7600 MPa. That is,
It can be seen that the provision of the reinforcing portion improved the bending elastic modulus of the resin molded body to about 1.3 times.
【００６９】本例の結果より，本発明の樹脂成形体は，
所望の方向，即ち補強部を設ける方向に関する強度が大
きいことが分かる。From the results of this example, the resin molded article of the present invention was
It can be seen that the strength in the desired direction, that is, the direction in which the reinforcing portion is provided, is large.
【図１】実施形態例１における，樹脂成形体の斜視図。FIG. 1 is a perspective view of a resin molded body according to a first embodiment.
【図２】実施形態例１における，（Ａ）補強部の断面
図，（Ｂ）（Ａ）のＡ−Ａ線矢視断面図。FIGS. 2A and 2B are cross-sectional views of a reinforcing portion and a cross-sectional view taken along line AA of FIGS.
【図３】実施形態例１における，補強部の配向層の繊維
の配向状態を表す説明図。FIG. 3 is an explanatory diagram showing an orientation state of fibers in an orientation layer of a reinforcing portion in the first embodiment.
【図４】実施形態例１における，本体部と補強部との界
面の説明図。FIG. 4 is an explanatory diagram of an interface between a main body and a reinforcing part according to the first embodiment.
【図５】実施形態例１における，樹脂成形体の成形方法
の説明図。FIG. 5 is an explanatory diagram of a molding method for a resin molded body according to the first embodiment.
【図６】実施形態例１における，金型の第２キャビティ
の長手方向に沿った縦断面説明図。FIG. 6 is an explanatory longitudinal sectional view along a longitudinal direction of a second cavity of a mold according to the first embodiment.
【図７】実施形態例２における，樹脂成形体の説明図。FIG. 7 is an explanatory view of a resin molded body according to a second embodiment.
【図８】実施形態例２における，樹脂成形体の成形方法
の説明図。FIG. 8 is an explanatory diagram of a molding method for a resin molded body according to the second embodiment.
【図９】実施形態例３における，補強部の形状及び補強
部と本体部の接合界面の形状のバリエーションの説明
図。FIG. 9 is an explanatory diagram of variations in the shape of the reinforcing portion and the shape of the joint interface between the reinforcing portion and the main body in the third embodiment.
【図１０】実施形態例３における，補強部の形状及び補
強部と本体部の接合界面の形状のバリエーションの説明
図。FIG. 10 is an explanatory diagram of variations in the shape of the reinforcing portion and the shape of the joint interface between the reinforcing portion and the main body in the third embodiment.
【図１１】実施形態例３における，補強部の形状及び補
強部と本体部の接合界面の形状のバリエーションの説明
図。FIG. 11 is a diagram illustrating variations in the shape of the reinforcing portion and the shape of the joint interface between the reinforcing portion and the main body in the third embodiment.
【図１２】実施形態例３における，補強部の形状及び補
強部と本体部の接合界面の形状のバリエーションの説明
図。FIG. 12 is an explanatory diagram of variations in the shape of the reinforcing portion and the shape of the joint interface between the reinforcing portion and the main body in the third embodiment.
【図１３】実施形態例４における，補強部を設けたフロ
ントエンドモジュールキャリアの斜視図。FIG. 13 is a perspective view of a front end module carrier provided with a reinforcing portion according to a fourth embodiment.
【図１４】実施形態例５における，補強部を設けた樹脂
製容器の斜視図。FIG. 14 is a perspective view of a resin container provided with a reinforcing portion according to the fifth embodiment.
【図１５】実施形態例６における，樹脂成形体の曲げ弾
性率の測定結果を表す線図。FIG. 15 is a diagram illustrating a measurement result of a bending elastic modulus of a resin molded body according to the sixth embodiment.
【図１６】従来例における，樹脂成形体の斜視図。FIG. 16 is a perspective view of a resin molded body in a conventional example.
１，１０，１ａ〜１ｋ．．．樹脂成形体， １１．．．本体部， １２．．．補強部， １２１．．．配向層， ２．．．繊維含有樹脂， ２１．．．繊維， ３，３０．．．金型， ３１．．．移動型， ３２．．．下型， ３３．．．上型， ３４．．．第１キャビティ， ３５．．．第２キャビティ， 1,10,1a to 1k. . . 10. resin molded body, . . Body part, 12. . . Reinforcing part, 121. . . 1. alignment layer; . . Fiber-containing resin, 21. . . Fiber, 3,30. . . Mold, 31. . . Mobile, 32. . . Lower mold, 33. . . Upper mold, 34. . . First cavity, 35. . . The second cavity,
───────────────────────────────────────────────────── フロントページの続き (72)発明者 笹野 教久 愛知県刈谷市昭和町１丁目１番地 株式会 社デンソー内 Ｆターム(参考） 4F202 AA11 AB25 AD16 AG28 CA11 CB01 CB27 CC10 CK19 CK43 CK52 4F206 AA11 AB25 AD16 AG28 JA07 JB25 JL02 JM04 JN12 JN25 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Norihisa Sasano 1-1-1 Showa-cho, Kariya-shi, Aichi F-term in DENSO Corporation (reference) 4F202 AA11 AB25 AD16 AG28 CA11 CB01 CB27 CC10 CK19 CK43 CK52 4F206 AA11 AB25 AD16 AG28 JA07 JB25 JL02 JM04 JN12 JN25
Claims (6)
に，両者は同じ繊維含有樹脂により一体的に構成されて
いる樹脂成形体を射出成形する方法であって，上記本体
部と上記補強部とは，いずれか一方を先に成形し，次い
で他方を成形すると共に両者を融着させ，かつ，上記補
強部の成形に当っては，上記補強部の長手方向に沿って
上記繊維含有樹脂が流れるよう，上記繊維含有樹脂を射
出することを特徴とする樹脂成形体の成形方法。1. A method for injection-molding a resin molded body comprising a main body portion and an elongated reinforcing portion, both of which are integrally formed of the same fiber-containing resin, wherein the main body portion and the elongated reinforcing portion are provided. The reinforcing part is formed by forming one of the parts first, then forming the other, and fusing them together. In forming the reinforcing part, the fiber-containing part is formed along the longitudinal direction of the reinforcing part. A method of molding a resin molded body, comprising injecting the fiber-containing resin so that the resin flows.
当っては，該補強部の長手方向の端部に相当する部分か
ら上記繊維含有樹脂を射出することを特徴とする樹脂成
形体の成形方法。2. The resin molded product according to claim 1, wherein the fiber-containing resin is injected from a portion corresponding to a longitudinal end of the reinforcing portion when forming the reinforcing portion. Molding method.
は，上記本体部よりも先に成形することを特徴とする樹
脂成形体の成形方法。3. The method according to claim 1, wherein the reinforcing portion is formed earlier than the main body.
に，両者は同じ繊維含有樹脂により一体的に構成されて
いる樹脂成形体であって，上記補強部は，繊維含有樹脂
に含まれた繊維が上記補強部の長手方向に沿って配向し
た配向層を有することを特徴とする樹脂成形体。4. A resin molding comprising a main body portion and a long reinforcing portion, both of which are integrally formed of the same fiber-containing resin, wherein the reinforcing portion is included in the fiber-containing resin. A molded article having an oriented layer in which the fibers are oriented along the longitudinal direction of the reinforcing portion.
補強部の表面から０．５ｍｍの厚みの範囲に形成されて
いることを特徴とする樹脂成形体。5. The resin molded product according to claim 4, wherein the alignment layer is formed within a range of 0.5 mm from the surface of the reinforcing portion.
上記繊維は，上記補強部の長手方向の軸線に対する傾斜
角度が４５°以下のものが，５０％以上を占めているこ
とを特徴とする樹脂成形体。6. The fiber according to claim 4, wherein the fibers of the orientation layer have an inclination angle of 45 ° or less with respect to the longitudinal axis of the reinforcing portion occupying 50% or more. Molded resin.
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| JP2000284190A JP4316125B2 (en) | 2000-09-19 | 2000-09-19 | Resin molded body and molding method thereof |
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| JP2000284190A JP4316125B2 (en) | 2000-09-19 | 2000-09-19 | Resin molded body and molding method thereof |
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| Publication Number | Publication Date |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011037146A1 (en) * | 2009-09-25 | 2011-03-31 | 東海ゴム工業株式会社 | Resin molding method and resin molding |
| EP3486064A1 (en) * | 2017-11-17 | 2019-05-22 | Kunststoff-Fröhlich GmbH | Injection moulding device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011037146A1 (en) * | 2009-09-25 | 2011-03-31 | 東海ゴム工業株式会社 | Resin molding method and resin molding |
| CN102395453A (en) * | 2009-09-25 | 2012-03-28 | 东海橡胶工业株式会社 | Resin molding method and resin molding |
| JPWO2011037146A1 (en) * | 2009-09-25 | 2013-02-21 | 東海ゴム工業株式会社 | Resin molding method and resin molded product |
| EP3486064A1 (en) * | 2017-11-17 | 2019-05-22 | Kunststoff-Fröhlich GmbH | Injection moulding device and method |
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