JP3044248B2 - Method for manufacturing synthetic resin member and method for manufacturing snowboard - Google Patents
Method for manufacturing synthetic resin member and method for manufacturing snowboardInfo
- Publication number
- JP3044248B2 JP3044248B2 JP9117939A JP11793997A JP3044248B2 JP 3044248 B2 JP3044248 B2 JP 3044248B2 JP 9117939 A JP9117939 A JP 9117939A JP 11793997 A JP11793997 A JP 11793997A JP 3044248 B2 JP3044248 B2 JP 3044248B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- cross
- section
- foamed synthetic
- passage
- 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 - Fee Related
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Bathtub Accessories (AREA)
- Laminated Bodies (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、合成樹脂製部材
の製造方法、特に、発泡合成樹脂からなる合成樹脂製部
材の製造方法に関するものである。更に、スノコの製造
方法、特に、発泡合成樹脂からなる板材を用いたスノコ
の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a synthetic resin member, and more particularly to a method for manufacturing a synthetic resin member made of a foamed synthetic resin. Furthermore, the present invention relates to a method for manufacturing a snowboard, and more particularly to a method for manufacturing a snowboard using a plate material made of a foamed synthetic resin.
【０００２】[0002]
【従来の技術】図８は、従来のスノコ用の板材(9) の斜
視図である。スノコ用の板材として、従来から木製のも
のが使用されていたが、最近では、発泡合成樹脂製の板
材(9) が採用されている。この板材(9) では、発泡しな
い合成樹脂製のものに比べて比重が小さくなることか
ら、スノコが軽量化される利点がある。尚、板材(9)
は、押出し成形等によって、製作される。2. Description of the Related Art FIG. 8 is a perspective view of a conventional board material (9) for a mushroom. Wooden boards have conventionally been used as a board material for a saw, but recently, a board material (9) made of a foamed synthetic resin has been adopted. This plate member (9) has an advantage that the weight is reduced because the specific gravity is smaller than that of synthetic resin that does not foam. In addition, plate material (9)
Is manufactured by extrusion molding or the like.
【０００３】[0003]
【発明が解決しようとする課題】ところが、この板材
(9) は、発泡合成樹脂製であるから、この板材(9) の表
面層は、前記成形時に金型に接触して平滑化されるもの
の、気泡孔が露出して多数の細かな凹部を有するものと
なり易い。従って、この板材(9) を用いたスノコでは、
その使用によって板材(9) の表面に付着したホコリ等の
汚れが前記凹部に入り込み易く、洗浄しても、前記汚れ
が落ちにくいという問題があった。However, this plate material
Since (9) is made of a foamed synthetic resin, the surface layer of the plate (9) is smoothed in contact with the mold at the time of the molding, but a large number of fine concave portions are exposed due to the exposure of the cell holes. It is easy to have. Therefore, in the snowboard using this plate material (9),
Due to its use, there is a problem that dirt such as dust attached to the surface of the plate material (9) easily enters the concave portion, and the dirt is hard to remove even when washed.
【０００４】本発明は、汚れが落ち易い合成樹脂製部材
乃至スノコの製造方法を提供することを目的とする。[0004] It is an object of the present invention to provide a method of manufacturing a synthetic resin member or a mushroom that easily removes dirt.
【０００５】[0005]
【課題を解決するための手段】請求項１の発明の課題解
決手段は、『熱可塑性の合成樹脂から合成樹脂製部材を
製造する合成樹脂製部材の製造方法であって、可塑化さ
れた発泡合成樹脂と非発泡合成樹脂とを金型から所定方
向に押し出すことによって、同一断面にて前記所定方向
に延びる前記発泡合成樹脂製の基材と、前記基材の断面
の外縁の一部に対して前記所定方向に亙って固着された
前記非発泡合成樹脂製の被覆材と、からなる押出し成形
体を成形する成形工程と、前記押出し成形体を、前記所
定方向にて所定長さずつに順次切断することによって、
前記基材及び前記被覆材からなる複数の切断成形体とす
る切断工程と、前記切断成形体の各々に於ける前記所定
方向の前記被覆材の端縁部と前記基材の端縁部とを溶着
させる溶着工程と、を具備し、前記成形工程は、前記金
型として、発泡合成樹脂を通過させる水平な第１通路
と、非発泡合成樹脂を通過させる水平に対して傾斜した
第２通路と、これら第１通路及び第２通路の下流端に接
続されて前記発泡合成樹脂と前記非発泡合成樹脂とを合
流状態にて通過させる水平な第３通路とを具備し、前記
第１通路の上流端は、円形断面に形成されて下流端にて
基材の断面より僅かに大きい矩形断面となるように前記
上流端から下流側に向って徐々に断面形状が変化する構
成とし、前記第２通路の上流端は、円形断面に形成され
て下流端にて被覆材の断面より僅かに大きい下向き開放
のコ字状断面となるように前記上流端から下流側に向っ
て徐々に断面形状が変化する構成とし、前記第３通路の
上流端は、板材の全断面より僅かに大きい矩形断面に形
成されて下流端にて板材の全断面と略一致する矩形断面
となるように前記上流端から下流側に向って徐々に断面
形状が変化する構成とするものを用い、更に前記発泡合
成樹脂は前記金型に押し込まれる直前に所定の発泡状態
とする』ことを特徴とする。このものでは、前記成形工
程によって、可塑化された発泡合成樹脂と非発泡合成樹
脂とが金型から所定方向に押し出され、これによって、
前記所定方向に延びる前記発泡合成樹脂製の基材と、前
記基材の断面の外縁の一部に対して前記所定方向に亙っ
て固着された前記非発泡合成樹脂製の被覆材と、からな
る押出し成形体が成形される。そして、前記切断工程に
よって、前記押出し成形体は、前記所定方向にて所定長
さずつに順次切断されて、複数の切断成形体となる。前
記切断成形体の各々は、前記所定方向に延びる同一断面
の基材と、その断面の外縁の一部に対して前記所定方向
に亙って固着された被覆材と、から構成されたものとな
る。更に、前記溶着工程によって、前記切断成形体の各
々に於ける前記所定方向の前記被覆材の端縁部と前記基
材の端縁部とが溶着される。従って、得られた合成樹脂
製部材の前記発泡合成樹脂製の基材の少なくとも一部に
対して、前記非発泡合成樹脂製の被覆材が固着されてい
るから、前記少なくとも一部では、ホコリ等の汚れは、
前記被覆材に付着する。Means for Solving the Problems An object of the present invention is to provide a method of manufacturing a synthetic resin member from a thermoplastic synthetic resin, wherein the method comprises the steps of: By extruding a synthetic resin and a non-foamed synthetic resin from a mold in a predetermined direction, the foamed synthetic resin base material extending in the predetermined direction in the same cross section, and a part of the outer edge of the cross section of the base material Forming an extruded body made of the non-foamed synthetic resin covering material fixed in the predetermined direction by a predetermined length in the predetermined direction. By cutting sequentially,
A cutting step of forming a plurality of cut molded bodies composed of the base material and the coating material, and an edge of the coating material and an edge of the base material in the predetermined direction in each of the cut molded bodies. A welding step of welding, wherein the molding step includes, as the mold, a horizontal first passage through which the foamed synthetic resin passes, and a second passage inclined with respect to the horizontal through which the non-foamed synthetic resin passes. A horizontal third passage connected to the downstream ends of the first passage and the second passage for allowing the foamed synthetic resin and the non-foamed synthetic resin to pass in a merged state, and an upstream of the first passage. The end is formed in a circular cross-section, and the cross-sectional shape gradually changes from the upstream end toward the downstream so as to have a rectangular cross-section slightly larger than the cross-section of the substrate at the downstream end. The upstream end is formed in a circular cross section and the coating material is The cross-sectional shape gradually changes from the upstream end to the downstream so as to have a downwardly open U-shaped cross section slightly larger than the cross section, and the upstream end of the third passage is slightly smaller than the entire cross section of the plate material. A cross-sectional shape that gradually changes from the upstream end toward the downstream side so as to form a rectangular cross section that is substantially larger than the entire cross section of the plate material at the downstream end, The foamed synthetic resin is brought into a predetermined foamed state immediately before being pushed into the mold ”. In this, by the molding step, the plasticized foamed synthetic resin and the non-foamed synthetic resin are extruded from the mold in a predetermined direction.
A base made of the foamed synthetic resin extending in the predetermined direction; and a covering material made of the non-foamed synthetic resin fixed in a part of an outer edge of a cross section of the base in the predetermined direction. An extruded product is formed. Then, by the cutting step, the extruded molded body is sequentially cut by a predetermined length in the predetermined direction to form a plurality of cut molded bodies. Each of the cut molded bodies is composed of a base material having the same cross-section extending in the predetermined direction, and a coating material fixed to a part of an outer edge of the cross-section in the predetermined direction. Become. Further, in the welding step, the edge of the coating material and the edge of the base material in the predetermined direction in each of the cut molded bodies are welded. Therefore, the non-foamed synthetic resin covering material is fixed to at least a part of the foamed synthetic resin base material of the obtained synthetic resin member. The dirt is
Attaches to the coating.
【０００６】請求項２の発明の課題解決手段は、『熱可
塑性の合成樹脂からスノコを製造するスノコの製造方法
であって、可塑化された発泡合成樹脂と非発泡合成樹脂
とを金型から所定方向に押し出すことによって、同一の
矩形断面にて前記所定方向に延びる平板状に形成された
前記発泡合成樹脂製の基材と、前記基材の表面及びその
幅方向の両端に続く側面の各々に対して前記所定方向に
亙って固着された前記非発泡合成樹脂製の被覆材と、か
らなる押出し成形体を成形する成形工程と、前記押出し
成形体を、前記所定方向にて所定長さずつに順次切断す
ることによって、前記基材及び前記被覆材からなる複数
の板材とする切断工程と、前記板材の各々に於ける前記
所定方向の前記被覆材の端縁部と前記基材の端縁部とを
溶着させる溶着工程と、前記板材の各々が略平行に並置
された状態にて前記板材の各々が相互に連結されるよう
に、前記板材の裏面に対して脚桟を接着する接着工程
と、を具備し、前記成形工程は、前記金型として、発泡
合成樹脂を通過させる水平な第１通路と、非発泡合成樹
脂を通過させる水平に対して傾斜した第２通路と、これ
ら第１通路及び第２通路の下流端に接続されて前記発泡
合成樹脂と前記非発泡合成樹脂とを合流状態にて通過さ
せる水平な第３通路とを具備し、前記第１通路の上流端
は、円形断面に形成されて下流端にて基材の断面より僅
かに大きい矩形断面となるように前記上流端から下流側
に向って徐々に断面形状が変化する構成とし、前記第２
通路の上流端は、円形断面に形成されて下流端にて被覆
材の断面より僅かに大きい下向き開放のコ字状断面とな
るように前記上流端から下流側に向って徐々に断面形状
が変化する構成とし、前記第３通路の上流端は、板材の
全断面より僅かに大きい矩形断面に形成されて下流端に
て板材の全断面と略一致する矩形断面となるように前記
上流端から下流側に向って徐々に断面形状が変化する構
成とするものを用い、更に前記発泡合成樹脂は前記金型
に押し込まれる直前に所定の発泡状態とする』ことを特
徴とするものである。前記成形工程によって、可塑化さ
れた発泡合成樹脂と非発泡合成樹脂とが金型から所定方
向に押し出され、これによって、前記所定方向に延びる
平板状に形成された前記発泡合成樹脂製の基材と、前記
基材の表面及びその幅方向の両端に続く側面の各々に対
して前記所定方向に亙って固着された前記非発泡合成樹
脂製の被覆材と、からなる押出し成形体が成形される。
そして、前記切断工程によって、前記押出し成形体は、
前記所定方向にて所定長さずつに順次切断されて複数の
板材となる。前記板材の各々は、同一の矩形断面にて前
記所定方向に延びる平板状に形成された前記発泡合成樹
脂製の基材と、その表面及び側面の各々に対して前記所
定方向に亙って固着された前記非発泡合成樹脂製の被覆
材と、から構成されたものとなる。更に、溶着工程によ
って、前記板材の各々に於ける前記所定方向の前記被覆
材の端縁部と前記基材の端縁部とが溶着される。この
後、接着工程によって、前記板材の各々が略平行に並置
された状態にて前記板材の各々が相互に連結されるよう
に、前記板材の裏面に対して脚桟が接着される。この接
着によって、前記板材の各々と前記脚桟とからなるスノ
コが製作されたものとなる。従って、得られたスノコの
前記発泡合成樹脂製の基材の少なくとも一部に対して、
前記非発泡合成樹脂製の被覆材が固着されているから、
前記少なくとも一部では、ホコリ等の汚れは、前記被覆
材に付着する。A second object of the present invention is to provide a method for manufacturing a mushroom from a thermoplastic synthetic resin, wherein a plasticized foamed synthetic resin and a non-foamed synthetic resin are molded from a mold. By extruding in a predetermined direction, the base made of a foamed synthetic resin formed in a flat plate shape extending in the predetermined direction with the same rectangular cross-section, and the surface of the base and each of the side surfaces following both ends in the width direction thereof Forming an extruded body made of the non-foamed synthetic resin covering material fixed in the predetermined direction with respect to the predetermined direction; A cutting step of cutting the base material and the coating material into a plurality of plate materials by sequentially cutting the base material and the coating material; and an edge portion of the coating material and an end of the base material in each of the plate materials in the predetermined direction. Welding work to weld the edge And a bonding step of bonding a leg beam to a back surface of the plate material so that each of the plate materials is interconnected in a state where each of the plate materials is juxtaposed in parallel. The molding step includes, as the mold, a horizontal first passage for passing the foamed synthetic resin, a second passage inclined with respect to the horizontal for passing the non-foamed synthetic resin, and a downstream of the first passage and the second passage. A horizontal third passage connected to an end and allowing the foamed synthetic resin and the non-foamed synthetic resin to pass in a merged state, wherein an upstream end of the first passage is formed in a circular cross section and a downstream end In the configuration, the sectional shape gradually changes from the upstream end toward the downstream side so as to have a rectangular cross section slightly larger than the cross section of the base material.
The upstream end of the passage is formed in a circular cross-section, and the cross-sectional shape gradually changes from the upstream end to the downstream so that the downstream end has a downwardly open U-shaped cross section slightly larger than the cross-section of the coating material. The upstream end of the third passage is formed to have a rectangular cross section slightly larger than the entire cross section of the plate, and the downstream end is downstream from the upstream end so as to have a rectangular cross section substantially matching the entire cross section of the plate at the downstream end. The cross-sectional shape gradually changes toward the side, and the foamed synthetic resin is brought into a predetermined foaming state immediately before being pushed into the mold. " By the molding step, the plasticized foamed synthetic resin and the non-foamed synthetic resin are extruded in a predetermined direction from a mold, whereby the base material made of the foamed synthetic resin formed in a flat plate shape extending in the predetermined direction. And an extruded body made of the non-foamed synthetic resin fixed to the surface of the base material and each of the side surfaces following both ends in the width direction thereof in the predetermined direction. You.
And by the cutting step, the extruded body is
A plurality of plate members are sequentially cut at a predetermined length in the predetermined direction. Each of the plate members is fixed to the base material made of the synthetic resin foam formed in a flat plate shape having the same rectangular cross section and extending in the predetermined direction, and to each of its surface and side surfaces in the predetermined direction. And a covering material made of the non-foamed synthetic resin. Further, by the welding step, the edge of the coating material in the predetermined direction and the edge of the base material in each of the plate materials are welded. Thereafter, a leg bar is adhered to the back surface of the plate material by a bonding process such that the plate materials are connected to each other in a state where the plate materials are juxtaposed and arranged substantially in parallel. By this bonding, a mushroom made of each of the plate members and the leg bar is manufactured. Therefore, for at least a part of the foamed synthetic resin base material of the obtained snowboard,
Since the non-foam synthetic resin coating material is fixed,
At least in part, dirt such as dust adheres to the covering material.
【０００７】[0007]
【０００８】[0008]
【０００９】[0009]
【００１０】[0010]
【００１１】[0011]
【００１２】[0012]
【００１３】[0013]
【００１４】[0014]
【発明の効果】以上説明したように、本発明の製造方法
により得られた合成樹脂製部材及びスノコは、発泡合成
樹脂製の基材の少なくとも一部では、ホコリ等の汚れ
は、上記被覆材に付着し、前記基材の表面層の気泡孔か
らなる細かな凹部に入り込まない。又、前記被覆材が上
記非発泡合成樹脂製であるから、前記被覆材の表面層
は、前記凹部を有しない平滑表面層となる。従って、前
記被覆材がなく前記凹部に汚れが入り込む従来のものに
比べて、前記汚れが落ち易くなる。As described above, the synthetic resin member and the mushroom obtained by the production method of the present invention are characterized in that at least a part of the base made of the foamed synthetic resin removes the dirt such as dust from the coating material. And does not enter into fine recesses formed by air bubbles in the surface layer of the base material. Further, since the covering material is made of the non-foamed synthetic resin, the surface layer of the covering material is a smooth surface layer having no concave portion. Therefore, the dirt can be easily removed as compared with the conventional one in which the dirt enters the recess without the covering material.
【００１５】特に平板状に形成された前記基材の表面及
び側面の各々に対して前記所定方向に亙って前記被覆材
が固着されているから、前記基材の表面及び側面の各々
では、ホコリ等の汚れは、前記被覆材に付着する。そし
て、前記被覆材が非発泡合成樹脂製であり、その表面層
が平滑表面層となるから、前記被覆材のない従来のもの
に比べて、前記汚れが落ち易い。In particular, since the coating material is fixed to each of the surface and the side surface of the base material formed in a flat plate shape in the predetermined direction, the surface and the side surface of the base material are Dirt such as dust adheres to the coating material. Since the coating material is made of a non-foamed synthetic resin and its surface layer becomes a smooth surface layer, the dirt is easily removed as compared with a conventional material without the coating material.
【００１６】[0016]
【００１７】[0017]
【００１８】[0018]
【００１９】[0019]
【００２０】[0020]
【００２１】[0021]
【００２２】[0022]
【００２３】[0023]
【００２４】[0024]
【発明の実施の形態】以下、本願発明の実施の形態を、
図面に基づいて説明する。図１は、本願発明の実施の形
態に於けるスノコ(100) の斜視図であり、図２は、図１
の板材(1) の長手方向の端部の溶着処理前の斜視図であ
る。又、図３は、図２の板材(1) を成形する成形装置(1
000)の側面図であり、図４は、図３の成形装置(1000)の
一部の平面図であり、図５は、図４の成形装置(1000)の
ＶーＶ断面図であり、図６は、図４の成形装置(1000)の
ＶＩーＶＩ断面図である。更に、図７は、図２の板材
(1) の溶着処理前後のＶＩＩーＶＩＩ断面図である。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the drawings. FIG. 1 is a perspective view of a snowboard (100) according to an embodiment of the present invention, and FIG.
FIG. 3 is a perspective view of a longitudinal end of a plate material (1) before a welding process. FIG. 3 shows a forming apparatus (1) for forming the plate (1) of FIG.
000), FIG. 4 is a plan view of a part of the molding apparatus (1000) of FIG. 3, and FIG. 5 is a VV sectional view of the molding apparatus (1000) of FIG. FIG. 6 is a VI-VI sectional view of the molding apparatus (1000) of FIG. Further, FIG. 7 shows the plate material of FIG.
FIG. 7 is a sectional view taken along the line VII-VII before and after the welding process of (1).
【００２５】図１に示すように、スノコ(100) は、複数
の板材(1)(1)と、これら板材(1)(1)に対して一体化され
る一対の脚桟(2)(2)と、からなる。 ［板材(1) について］板材(1) は、図１及び図２に示す
ように、平面視にて矩形で且つ一定肉厚の平板状に形成
された発泡合成樹脂製の基材(11)と、この基材(11)の表
面(110) 及びその幅方向の両端に続く側面(111)(111)の
各々に対して長手方向に亙って固着される非発泡合成樹
脂製の被覆材(12)と、からなる。As shown in FIG. 1, the snowboard (100) is composed of a plurality of plate members (1) (1) and a pair of leg bars (2) (1) integrated with the plate members (1) (1). 2) [Regarding the Plate Material (1)] As shown in FIGS. 1 and 2, the plate material (1) is made of a foamed synthetic resin base material (11) formed in a flat plate shape having a rectangular shape and a constant thickness in plan view. And a covering material made of a non-foamed synthetic resin fixed to the surface (110) of the substrate (11) and the side surfaces (111) and (111) following both ends in the width direction thereof in the longitudinal direction. (12).
【００２６】基材(11)には、その厚さ方向に於ける側面
(111)(111)の各々の中程から凹んだ矩形断面の一対の溝
部(11a)(11a)が形成されている。これら溝部(11a)(11a)
の各々は、前記長手方向に亙って延びている。被覆材(1
2)には、前記した溝部(11a)(11a)の各々に対して密に嵌
入される矩形断面の一対の凸部(12a)(12a)が備えられて
いる。これら凸部(12a)(12a)の各々は、前記長手方向に
亙って延びている。The base material (11) has a side surface in the thickness direction.
Each of (111) and (111) has a pair of grooves (11a) (11a) having a rectangular cross section that is recessed from the middle. These grooves (11a) (11a)
Each extend in the longitudinal direction. Coating material (1
2) is provided with a pair of convex portions (12a) (12a) having a rectangular cross section that are fitted tightly into the respective grooves (11a) (11a). Each of these protrusions (12a) (12a) extends in the longitudinal direction.
【００２７】［板材(1) の成形について］板材(1) 用の
成形装置(1000)は、図３及び図４に示すように、押出し
成形用の金型(3) と、金型(3) に対して可塑化状態の発
泡合成樹脂(101) を加圧状態で供給するシリンダーを有
する第１供給装置(3a)と、金型(3) に対して可塑化状態
の非発泡合成樹脂非発泡合成樹脂(102) を加圧状態で供
給するシリンダーを有する第２供給装置(3b)と、金型
(3) から水平方向に押し出された押出し成形体(1a)を押
出し方向に搬送するコンベアからなる搬送装置(4) と、
この搬送装置(4) の搬送経路にて押出し成形体(1a)を冷
却する冷却装置（図示せず）と、搬送装置(4)の搬送経
路の途中で前記冷却後の押出し成形体(1a)を所定長さづ
つに切断するカッター(5) と、を具備する構成である。[Formation of Plate Material (1)] As shown in FIGS. 3 and 4, a molding device (1000) for the plate material (1) includes a die (3) for extrusion molding and a die (3). ), A first supply device (3a) having a cylinder for supplying a plasticized foamed synthetic resin (101) in a pressurized state, and a non-foamed synthetic resin in a plasticized state to a mold (3). A second supply device (3b) having a cylinder for supplying the foamed synthetic resin (102) in a pressurized state, and a mold
(3) a conveying device (4) consisting of a conveyor that conveys the extruded body (1a) extruded horizontally from the extruding direction,
A cooling device (not shown) for cooling the extruded product (1a) in the transport path of the transport device (4), and the cooled extruded product (1a) in the transport route of the transport device (4); And a cutter (5) that cuts the pieces at predetermined lengths.
【００２８】第１供給装置(3a)及び第２供給装置(3b)
は、公知の構成である。そして、発泡合成樹脂(101) と
しては、ポリスチレン樹脂に発泡材を混合したものが採
用されており、この発泡合成樹脂(101) が第１供給装置
(3a)から金型(3a)に押し込まれる直前に所定の発泡状態
（例えば、発泡倍率：３．３倍）となるように、第１供
給装置(3a)での加熱温度等が設定されている。又、非発
泡合成樹脂(102) としては、ブタジエン・スチレン樹脂
が採用されている。First supply device (3a) and second supply device (3b)
Is a known configuration. As the foam synthetic resin (101), a mixture of a polystyrene resin and a foam material is adopted, and this foam synthetic resin (101) is supplied to the first supply device.
The heating temperature and the like in the first supply device (3a) are set so that a predetermined foaming state (for example, a foaming ratio: 3.3 times) is obtained immediately before being pushed from the mold (3a) into the mold (3a). I have. Butadiene / styrene resin is used as the non-foamed synthetic resin (102).
【００２９】金型(3) は、図５及び図６に示すように、
第１供給装置(3a)から供給された発泡合成樹脂(101) を
通過させる水平な第１通路(31)と、第２供給装置(3b)か
ら供給された非発泡合成樹脂(102) を通過させる水平に
対して傾斜した第２通路(32)と、これら第１通路(31)及
び第２通路(32)の下流端に接続されて発泡合成樹脂(10
1) と非発泡合成樹脂(102) とを合流状態にて通過させ
る水平な第３通路(33)と、を具備する構成である。The mold (3) is, as shown in FIGS.
A horizontal first passage (31) through which the foamed synthetic resin (101) supplied from the first supply device (3a) passes, and a non-foamed synthetic resin (102) supplied from the second supply device (3b) A second passage (32) inclined with respect to the horizontal to be made, and connected to the downstream ends of the first passage (31) and the second passage (32) to form a foamed synthetic resin (10
1) and a third horizontal passage (33) for passing the non-foamed synthetic resin (102) in a merged state.
【００３０】第１通路(31)の上流端は、円形断面に形成
されており、この第１通路(31)の下流端にて基材(11)の
断面より僅かに大きい矩形断面となるように、前記上流
端から下流側に向って、徐々に断面形状が変化する構成
となっている。又、第２通路(32)の上流端は、第１通路
(31)と同様、円形断面に形成されており、この第２通路
(32)の下流端にて被覆材(12)の断面より僅かに大きい下
向き開放のコ字状断面となるように、前記上流端から下
流側に向って、徐々に断面形状が変化する構成となって
いる。The upstream end of the first passage (31) is formed in a circular cross section, and has a rectangular cross section slightly larger than the cross section of the substrate (11) at the downstream end of the first passage (31). In addition, the sectional shape gradually changes from the upstream end to the downstream side. Further, the upstream end of the second passage (32) is the first passage.
Like (31), the second passage is formed in a circular cross section.
At the downstream end of (32), the cross-sectional shape gradually changes from the upstream end to the downstream so as to have a downwardly open U-shaped cross section slightly larger than the cross section of the coating material (12). Has become.
【００３１】そして、第３通路(33)の上流端は、板材
(1) の全断面より僅かに大きい矩形断面に形成されてお
り、この第３通路(33)の下流端にて板材(1) の全断面と
略一致する矩形断面となるように、前記上流端から下流
側に向って、徐々に断面形状が変化する構成となってい
る。従って、この金型(3) から押し出された発泡合成樹
脂(101) は、上記した矩形断面の基材(11)に成形され、
非発泡合成樹脂(102) は、基材(11)の表面(110) 及び側
面(111)(111)の各々を被覆する被覆材(12)に成形された
ものとなる。つまり、発泡合成樹脂(101) と非発泡合成
樹脂(102) とが基材(11)及び被覆材(12)からなる押出し
成形体(1a)に成形されたものとなる。この工程が既述特
許請求の範囲に記載の「成形工程」に相当する。The upstream end of the third passage (33) is a plate material.
(1) is formed in a rectangular cross section slightly larger than the entire cross section of the third passage (33), so that the downstream end of the third passage (33) has a rectangular cross section substantially coincident with the entire cross section of the plate material (1). The cross-sectional shape gradually changes from the end toward the downstream side. Therefore, the foamed synthetic resin (101) extruded from the mold (3) is formed into the above-described base material (11) having a rectangular cross section,
The non-foamed synthetic resin (102) is formed into a coating material (12) that covers each of the surface (110) and the side surfaces (111) and (111) of the substrate (11). That is, the foamed synthetic resin (101) and the non-foamed synthetic resin (102) are formed into an extruded body (1a) composed of the base material (11) and the covering material (12). This step corresponds to the “forming step” described in the claims.
【００３２】そして、図３及び図４に示すように、金型
(3) からの押出し成形体(1a)の押出しに伴って、押出し
成形体(1a)は、上記した搬送装置(4) によって、押出し
成形体(1a)の押出し方向に搬送される。そして、押出し
成形体(1a)は、前記搬送の途中で、上記冷却装置によっ
て冷却されて硬化し、この硬化後に、上記したカッター
(5) によって、所定長さづつに切断される。この切断に
よって、押出し成形体(1a)が複数の板材(1)(1)となる。
この工程が既述特許請求の範囲に記載の「切断工程」に
相当する。尚、搬送装置(4) 及びカッター(5) として
は、公知の構成のものが採用されている。Then, as shown in FIG. 3 and FIG.
With the extrusion of the extruded product (1a) from (3), the extruded product (1a) is conveyed by the above-mentioned conveying device (4) in the extrusion direction of the extruded product (1a). The extruded body (1a) is cooled and hardened by the cooling device during the transportation, and after the hardening, the cutter
According to (5), it is cut into predetermined lengths. By this cutting, the extruded body (1a) becomes a plurality of plate members (1) (1).
This step corresponds to the “cutting step” described in the claims. It should be noted that the transporting device (4) and the cutter (5) have a known configuration.
【００３３】この後、成形装置(1000)とは別の溶着装置
（図示せず）によって、板材(1) の長手方向の被覆材(1
2)の端縁部(1200)と基材(11)の端縁部(1100)とが溶着さ
れる。尚、前記溶着装置としては、公知の構成のものが
採用されている。この溶着処理の前では、端縁部(1200)
は、図７ーａに示すように、その内側の部分に対して真
っ直ぐに延びている。そして、溶着処理によって、端縁
部(1200)に於ける表面(110) との対応部は、図７ーｂに
示すように、その端縁(1201)に向って、基材(11)の裏面
(112) 側に漸次近づくように傾斜した状態となる。又、
端縁部(1200)に於ける側面(111)(111)の各々との対応部
は、端縁(1201)に向って、相互に近づくように傾斜した
状態となる。この工程が既述特許請求の範囲に記載の
「溶着工程」に相当する。Thereafter, the coating material (1) in the longitudinal direction of the plate (1) is formed by a welding device (not shown) separate from the forming device (1000).
The edge (1200) of (2) and the edge (1100) of the substrate (11) are welded. In addition, as the welding device, one having a known configuration is employed. Before this welding process, the edge (1200)
Extends straight with respect to its inner part, as shown in FIG. 7-a. Then, by the welding process, the corresponding portion of the edge (1200) with the surface (110) is directed toward the edge (1201) as shown in FIG. Back
(112) side is gradually inclined. or,
The corresponding portion of the edge (1200) with each of the side surfaces (111) and (111) is inclined toward the edge (1201) so as to approach each other. This step corresponds to the “welding step” described in the claims.
【００３４】［スノコ(100) の組立について］前記した
溶着処理後の複数の板材(1)(1)に対して、矩形断面の棒
状に形成された一対の脚桟(2)(2)の各々が取付けられ
る。この取付に際しては、脚桟(2)(2)の各々は、相互に
平行となるように置かれる。そして、これら脚桟(2)(2)
に対して板材(1)(1)の各々が平面視にて直角姿勢となる
ように、且つ、板材(1)(1)の各々が相互に所定間隔で平
行に並ぶように、脚桟(2)(2)に対して板材(1)(1)の各々
が載置される。[Assembly of the snowboard (100)] A pair of leg bars (2) (2) formed in a rod shape with a rectangular cross section is attached to the plurality of plate materials (1) (1) after the welding process. Each is mounted. At the time of this attachment, each of the leg bars 2 is placed so as to be parallel to each other. And these legs (2) (2)
In order that each of the plate members (1) and (1) is in a right angle posture in plan view, and that each of the plate members (1) and (1) are arranged parallel to each other at a predetermined interval, 2) Each of the plate members (1) and (1) is placed on (2).
【００３５】又、板材(1)(1)の各々の裏面(112) に於け
る脚桟(2)(2)の各々との接触部、又は、脚桟(2)(2)の各
々の上面に於ける板材(1)(1)の各々との接触部には、予
め、接着剤が塗布されている。そして、板材(1)(1)の各
々が脚桟(2)(2)に対して載置された状態で接着剤が硬化
することによって、板材(1)(1)の各々と脚桟(2)(2)の各
々とが接着されたものとなる。これにより、スノコ(10
0) の組立が完了する。Further, a contact portion of each of the leg members (2) and (2) on the back surface (112) of each of the plate members (1) and (1), or each of the leg members (2) and (2) An adhesive is previously applied to a contact portion of the upper surface with each of the plate members (1) and (1). Then, the adhesive is cured in a state where each of the plate members (1) and (1) is placed on the leg bars (2) and (2), so that each of the plate members (1) and (1) and the leg bars ( 2) Each of (2) is bonded. With this, the snowboard (10
Assembly of (0) is completed.
【００３６】尚、脚桟(2)(2)の各々は、押出し成形で製
作されるものでもよく、この場合、発泡合成樹脂製でも
非発泡合成樹脂製でもよい。又、脚桟(2)(2)の各々は、
木製でもよい。このものでは、以下のような効果を奏す
る。 ．発泡合成樹脂(101) 製の基材(11)の表面(110) 及び
側面(111)(111)の各々に対して、板材(1) の長手方向に
亙って被覆材(12)が固着されているから、ホコリ等の汚
れは、表面(110) 及び側面(111)(111)の各々に付着せ
ず、被覆材(12)に付着する。これによって、表面(110)
及び側面(111)(111)の各々に露出する基材(11)の気泡孔
からなる細かな多数の凹部に対して、前記汚れが入り込
まない。そして、被覆材(12)が非発泡合成樹脂(102) 製
であり、その表面層が平滑表面層となっている。従っ
て、被覆材(12)がなく前記凹部に汚れが入り込む従来の
ものに比べて、前記汚れが落ち易くなっている。Each of the leg bars 2 may be manufactured by extrusion molding. In this case, the legs 2 and 2 may be made of a foamed synthetic resin or a non-foamed synthetic resin. Also, each of the legs (2) and (2)
It may be wooden. This has the following effects. . The coating material (12) is fixed to the surface (110) and the side surfaces (111) and (111) of the base material (11) made of the foamed synthetic resin (101) along the longitudinal direction of the plate material (1). Therefore, dirt such as dust does not adhere to the surface (110) and the side surfaces (111) and (111), but adheres to the coating material (12). This allows the surface (110)
In addition, the dirt does not enter into a large number of fine concave portions formed of cell holes of the base material (11) exposed on each of the side surfaces (111) and (111). The covering material (12) is made of a non-foamed synthetic resin (102), and its surface layer is a smooth surface layer. Therefore, the dirt can be easily removed as compared with the conventional one in which dirt enters the recess without the covering material (12).
【００３７】尚、被覆材(12)を有する本案品と、基材(1
1)と発泡倍率が略同一で且つ被覆材(12)のない従来品
と、に関して、汚染回復率を求めた結果、従来品では、
汚染回復率が１５〜１７％であったのに対して、本案品
では、汚染回復率が８４〜８７％であった。 ．上記押出し成形による端縁部(1200)と端縁部(1100)
の固着に加えて、上記溶着処理によって、被覆材(12)の
端縁部(1200)と基材(11)の端縁部(1100)とが溶着される
から、端縁部(1200)(1100)相互の固着強度が向上し、端
縁部(1200)が端縁部(1100)から剥れにくくなっている。The product having the coating material (12) and the base material (1
With respect to 1) and the conventional product having substantially the same expansion ratio and without the covering material (12), as a result of obtaining the contamination recovery rate,
The contamination recovery rate was 15 to 17%, whereas the contamination recovery rate was 84 to 87% in the product of the present invention. . Edge part (1200) and edge part (1100) by extrusion molding
In addition to the adhesion, the welding process causes the edge (1200) of the covering material (12) and the edge (1100) of the base material (11) to be welded, so that the edge (1200) ( 1100) The mutual fixing strength is improved, and the edge (1200) is less likely to peel off from the edge (1100).
【００３８】又、端縁部(1200)に於ける表面(110) との
対応部は、その端縁(1201)に向って基材(11)の裏面(11
2) 側に漸次近づくように傾斜し、端縁部(1200)に於け
る側面(111)(111)との対応部の各々は、その端縁(1201)
に向って相互に漸次近づくように傾斜しているから、前
記溶着処理される前のような前記対応部の各々がその内
側に対して真っ直ぐに延びるものに比べて、前記対応部
に対して物が引っ掛かりにくい。従って、この点でも、
端縁部(1200)が端縁部(1100)から剥れにくくなってい
る。The corresponding portion of the edge (1200) with the front surface (110) corresponds to the rear surface (11) of the substrate (11) toward the edge (1201).
2) It is inclined so as to gradually approach the side, and each of the corresponding portions with the side surfaces (111) and (111) at the edge portion (1200) is the edge (1201)
Are inclined so as to gradually approach each other, so that each of the corresponding portions as before the welding process is straightened toward the inside thereof, Is hard to be caught. Therefore, also in this regard,
The edge (1200) is less likely to peel off from the edge (1100).
【００３９】．基材(11)の側面(111)(111)の各々の溝
部(11a) に対して被覆材(12)の凸部(12a) が密に嵌入さ
れているから、溝部(11a) 及び凸部(12a) がないものに
比べて、この板材(1) の幅方向の両端部での基材(11)と
被覆材(12)の固着強度が向上し、前記両端部にて被覆材
(12)が基材(11)から剥れにくくなっている。 ．基材(11)の裏面(112) には、被覆材(12)が被覆され
ないから、裏面(112)と脚桟(2)(2)の各々とを接着する
為の接着剤が裏面(112) に露出する気泡孔からなる細か
な多数の凹部に入り込む。従って、裏面(112) をも被覆
材(12)により被覆させたものに比べて、前記接着剤によ
る板材(1)(1)の各々と脚桟(2)(2)の各々との接着強度が
向上している。 ［他の実施の形態］ ．上記の実施の形態では、「基材」を平板状とした
が、この形状の他、例えば、球状や立方体状としてもよ
い。又、「被覆材」は、「基材」の一部を被覆するもの
でも、全部を被覆するものでもよい。[0039] Since the protrusions (12a) of the coating material (12) are closely fitted into the respective grooves (11a) of the side surfaces (111) and (111) of the base material (11), the grooves (11a) and the protrusions are formed. Compared to the case without (12a), the bonding strength between the base material (11) and the coating material (12) at both ends in the width direction of the plate (1) is improved, and the coating material at the both ends is improved.
(12) is hardly peeled off from the substrate (11). . Since the coating material (12) is not coated on the back surface (112) of the base material (11), an adhesive for bonding the back surface (112) and each of the leg bars (2) and (2) is provided on the back surface (112). ) Enters a large number of small concave portions composed of air bubbles exposed to the surface. Therefore, compared with the case where the back surface (112) is also covered with the covering material (12), the adhesive strength between each of the plate materials (1) and (1) and each of the leg bars (2) and (2) by the adhesive is higher. Is improving. [Other embodiments]. In the above embodiment, the “substrate” has a flat plate shape, but may have a spherical shape or a cubic shape other than this shape. The “coating material” may cover a part of the “substrate” or may cover the whole.
【００４０】．上記の実施の形態では、基材と被覆材
とを同時に押出し成形するものとしたが、これを、予め
成形された基材に対して、シート状に成形された被覆材
をラミネートするものとしてもよい。又、成形された基
材に対して、コーティングにより被覆材を固着させるも
のでもよい。更に、基材は、押出し成形の他の成形方法
により成形されるものでもよい。[0040] In the above-described embodiment, the base material and the coating material are extruded at the same time. However, it is also possible to laminate the sheet-shaped coating material to the pre-formed base material. Good. Further, a coating material may be fixed to the formed base material by coating. Further, the substrate may be formed by another method of extrusion molding.
【図１】本願発明の実施の形態に於けるスノコ(100) の
斜視図FIG. 1 is a perspective view of a snowboard (100) according to an embodiment of the present invention.
【図２】図１の板材(1) の長手方向の端部の溶着処理前
の斜視図FIG. 2 is a perspective view of a longitudinal end of the plate (1) in FIG. 1 before a welding process.
【図３】図２の板材(1) を成形する成形装置(1000)の側
面図FIG. 3 is a side view of a forming apparatus (1000) for forming the plate (1) of FIG. 2;
【図４】図３の成形装置(1000)の一部の平面図4 is a plan view of a part of the molding apparatus (1000) of FIG.
【図５】図４の成形装置(1000)のＶーＶ断面図FIG. 5 is a sectional view taken along line VV of the molding apparatus (1000) in FIG.
【図６】図４の成形装置(1000)のＶＩーＶＩ断面図6 is a sectional view taken along the line VI-VI of the molding device (1000) in FIG.
【図７】図２の板材(1) の溶着処理前後のＶＩＩーＶＩ
Ｉ断面図7 is VII-VI before and after welding processing of the plate material (1) of FIG. 2;
I cross section
【図８】従来のスノコ用の板材(9) の斜視図FIG. 8 is a perspective view of a conventional board material (9) for a mushroom.
(1) ・・・板材 (2) ・・・脚桟 (11)・・・基材 (12)・・・被覆材 (1) ・ ・ ・ Plate material (2) ・ ・ ・ Leg crosspiece (11) ・ ・ ・ Base material (12) ・ ・ ・ Coating material
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｂ２９Ｌ 31:00 (56)参考文献 実開 昭62−33386（ＪＰ，Ｕ) 実開 昭59−131824（ＪＰ，Ｕ) 実開 昭63−152487（ＪＰ，Ｕ) 実開 昭63−194683（ＪＰ，Ｕ) 実開 平１−77545（ＪＰ，Ｕ) 実開 昭58−85548（ＪＰ，Ｕ) 実開 昭61−126876（ＪＰ，Ｕ) 実開 昭58−98891（ＪＰ，Ｕ) 実開 昭58−65990（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B32B 1/00 - 35/00 B29C 47/00 - 47/96 B29C 65/02 - 65/46 A47K 3/00 ────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. 7 Identification code FIB29L 31:00 (56) References Fully open 1987-33386 (JP, U) Fully open 1984-131824 (JP, U) Opened 63-152487 (JP, U) Opened 63-194683 (JP, U) Opened 1-77545 (JP, U) Opened 58-85548 (JP, U) Opened 61-126876 (JP, U) JP, U) Japanese Utility Model Showa 58-98891 (JP, U) Japanese Utility Model Showa 58-65990 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) B32B 1/00-35/00 B29C 47/00-47/96 B29C 65/02-65/46 A47K 3/00
Claims (2)
を製造する合成樹脂製部材の製造方法であって、 可塑化された発泡合成樹脂と非発泡合成樹脂とを金型か
ら所定方向に押し出すことによって、同一断面にて前記
所定方向に延びる前記発泡合成樹脂製の基材と、前記基
材の断面の外縁の一部に対して前記所定方向に亙って固
着された前記非発泡合成樹脂製の被覆材と、からなる押
出し成形体を成形する成形工程と、 前記押出し成形体を、前記所定方向にて所定長さずつに
順次切断することによって、前記基材及び前記被覆材か
らなる複数の切断成形体とする切断工程と、 前記切断成形体の各々に於ける前記所定方向の前記被覆
材の端縁部と前記基材の端縁部とを溶着させる溶着工程
と、を具備し、 前記成形工程は、前記金型として、発泡合成樹脂を通過
させる水平な第１通路と、非発泡合成樹脂を通過させる
水平に対して傾斜した第２通路と、これら第１通路及び
第２通路の下流端に接続されて前記発泡合成樹脂と前記
非発泡合成樹脂とを合流状態にて通過させる水平な第３
通路とを具備し、前記第１通路の上流端は、円形断面に
形成されて下流端にて基材の断面より僅かに大きい矩形
断面となるように前記上流端から下流側に向って徐々に
断面形状が変化する構成とし、前記第２通路の上流端
は、円形断面に形成されて下流端にて被覆材の断面より
僅かに大きい下向き開放のコ字状断面となるように前記
上流端から下流側に向って徐々に断面形状が変化する構
成とし、前記第３通路の上流端は、板材の全断面より僅
かに大きい矩形断面に形成されて下流端にて板材の全断
面と略一致する矩形断面となるように前記上流端から下
流側に向って徐々に断面形状が変化する構成とするもの
を用い、 更に前記発泡合成樹脂は前記金型に押し込まれる直前に
所定の発泡状態とする合成樹脂製部材の製造方法。1. A method for producing a synthetic resin member from a thermoplastic synthetic resin, wherein a plasticized foamed synthetic resin and a non-foamed synthetic resin are extruded from a mold in a predetermined direction. Thereby, the foamed synthetic resin base material extending in the predetermined direction in the same cross section, and the non-foamed synthetic resin fixed to a part of the outer edge of the cross section of the base material in the predetermined direction. And a forming step of forming an extruded body composed of: a plurality of extruded bodies formed by sequentially cutting the extruded body at predetermined lengths in the predetermined direction, thereby forming a plurality of base materials and the coating material. And a welding step of welding the edge of the coating material and the edge of the base material in the predetermined direction in each of the cut molded bodies, The molding step includes forming the mold as A first horizontal passage through which the synthetic resin passes, a second passage inclined with respect to the horizontal through which the non-foamed synthetic resin passes, and the foamed synthetic resin connected to the downstream ends of the first and second passages. A horizontal third through which the non-foamed synthetic resin passes in a merged state
A passage, and the upstream end of the first passage is formed in a circular cross section, and gradually from the upstream end toward the downstream side so as to have a rectangular cross section slightly larger than the cross section of the base material at the downstream end. The cross-sectional shape is changed, and the upstream end of the second passage is formed in a circular cross-section, and has a downward open U-shaped cross-section slightly larger than the cross-section of the coating material at the downstream end. The cross-sectional shape gradually changes toward the downstream side, and the upstream end of the third passage is formed in a rectangular cross section slightly larger than the entire cross section of the plate, and substantially coincides with the entire cross section of the plate at the downstream end. A structure in which the cross-sectional shape gradually changes from the upstream end to the downstream side so as to have a rectangular cross-section is used, and the foamed synthetic resin is brought into a predetermined foamed state immediately before being pushed into the mold. A method for manufacturing a resin member.
るスノコの製造方法であって、 可塑化された発泡合成樹脂と非発泡合成樹脂とを金型か
ら所定方向に押し出すことによって、同一の矩形断面に
て前記所定方向に延びる平板状に形成された前記発泡合
成樹脂製の基材と、前記基材の表面及びその幅方向の両
端に続く側面の各々に対して前記所定方向に亙って固着
された前記非発泡合成樹脂製の被覆材と、からなる押出
し成形体を成形する成形工程と、 前記押出し成形体を、前記所定方向にて所定長さずつに
順次切断することによって、前記基材及び前記被覆材か
らなる複数の板材とする切断工程と、 前記板材の各々に於ける前記所定方向の前記被覆材の端
縁部と前記基材の端縁部とを溶着させる溶着工程と、 前記板材の各々が略平行に並置された状態にて前記板材
の各々が相互に連結されるように、前記板材の裏面に対
して脚桟を接着する接着工程と、を具備し、 前記成形工程は、前記金型として、発泡合成樹脂を通過
させる水平な第１通路と、非発泡合成樹脂を通過させる
水平に対して傾斜した第２通路と、これら第１通路及び
第２通路の下流端に接続されて前記発泡合成樹脂と前記
非発泡合成樹脂とを合流状態にて通過させる水平な第３
通路とを具備し、前記第１通路の上流端は、円形断面に
形成されて下流端にて基材の断面より僅かに大きい矩形
断面となるように前記上流端から下流側に向って徐々に
断面形状が変化する構成とし、前記第２通路の上流端
は、円形断面に形成されて下流端にて被覆材の断面より
僅かに大きい下向き開放のコ字状断面となるように前記
上流端から下流側に向って徐々に断面形状が変化する構
成とし、前記第３通路の上流端は、板材の全断面より僅
かに大きい矩形断面に形成されて下流端にて板材の全断
面と略一致する矩形断面となるように前記上流端から下
流側に向って徐々に断面形状が変化する構成とするもの
を用い、 更に前記発泡合成樹脂は前記金型に押し込まれる直前に
所定の発泡状態とするスノコの製造方法。2. A method of manufacturing a snowboard from a thermoplastic synthetic resin, comprising extruding a plasticized foamed synthetic resin and a non-foamed synthetic resin from a mold in a predetermined direction, thereby forming the same rectangular shape. The base made of the foamed synthetic resin formed in a flat plate shape extending in the predetermined direction in a cross section, and the side surface following both ends in the width direction of the surface of the base material and the side surfaces extending in the predetermined direction. A forming step of forming an extruded body comprising the fixed non-foamed synthetic resin coating material; and sequentially cutting the extruded body at predetermined lengths in the predetermined direction to obtain the base material. A cutting step of forming a plurality of plate members made of a material and the coating material, and a welding step of welding an edge portion of the coating material and an edge portion of the base material in the predetermined direction in each of the plate materials, Each of the plate members is substantially parallel A bonding step of bonding a leg bar to the back surface of the plate material so that each of the plate materials is connected to each other in the placed state. A first horizontal passage through which the synthetic resin passes, a second passage inclined with respect to the horizontal through which the non-foamed synthetic resin passes, and the foamed synthetic resin connected to the downstream ends of the first and second passages. A horizontal third through which the non-foamed synthetic resin passes in a merged state
A passage, and the upstream end of the first passage is formed in a circular cross section, and gradually from the upstream end toward the downstream side so as to have a rectangular cross section slightly larger than the cross section of the base material at the downstream end. The cross-sectional shape is changed, and the upstream end of the second passage is formed in a circular cross-section, and has a downward open U-shaped cross-section slightly larger than the cross-section of the coating material at the downstream end. The cross-sectional shape gradually changes toward the downstream side, and the upstream end of the third passage is formed in a rectangular cross section slightly larger than the entire cross section of the plate, and substantially coincides with the entire cross section of the plate at the downstream end. The one having a configuration in which the cross-sectional shape gradually changes from the upstream end to the downstream side so as to have a rectangular cross-section is used, and the foamed synthetic resin is brought into a predetermined foamed state immediately before being pushed into the mold. Manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9117939A JP3044248B2 (en) | 1997-05-08 | 1997-05-08 | Method for manufacturing synthetic resin member and method for manufacturing snowboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9117939A JP3044248B2 (en) | 1997-05-08 | 1997-05-08 | Method for manufacturing synthetic resin member and method for manufacturing snowboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10305508A JPH10305508A (en) | 1998-11-17 |
| JP3044248B2 true JP3044248B2 (en) | 2000-05-22 |
Family
ID=14723970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9117939A Expired - Fee Related JP3044248B2 (en) | 1997-05-08 | 1997-05-08 | Method for manufacturing synthetic resin member and method for manufacturing snowboard |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3044248B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021002417A1 (en) * | 2019-07-02 | 2021-01-07 | 株式会社村田製作所 | Composite molded body and method for producing same, battery pack, electric tool, and electric vehicle |
-
1997
- 1997-05-08 JP JP9117939A patent/JP3044248B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10305508A (en) | 1998-11-17 |
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