JP2831328B2 - Method of manufacturing fender for bicycle or motorcycle - Google Patents
Method of manufacturing fender for bicycle or motorcycleInfo
- Publication number
- JP2831328B2 JP2831328B2 JP8133506A JP13350696A JP2831328B2 JP 2831328 B2 JP2831328 B2 JP 2831328B2 JP 8133506 A JP8133506 A JP 8133506A JP 13350696 A JP13350696 A JP 13350696A JP 2831328 B2 JP2831328 B2 JP 2831328B2
- Authority
- JP
- Japan
- Prior art keywords
- plastic material
- fender
- color
- sub
- main
- 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)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、プラスチック材
料によって自転車または自動二輪車用のフェンダー（泥
除け）を製造する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 fender for a bicycle or a motorcycle using a plastic material.
【０００２】[0002]
【従来の技術】従来の自転車用フェンダーは、プラスチ
ック材料の射出成形または金属板の曲げ加工によってフ
ェンダー主体を製造している。図１に示すように、プラ
スチック材料からなるフェンダー主体１は、単色のみの
射出成形品が多く、この成形品１ａの表面にこれと異な
った色の着色帯１ｂ，１ｃを貼り付けた縦縞模様のもの
もあるが、これは外見をきれいに見せるために付加され
ているだけである。金属板からなるフェンダー主体は、
図２のフローチャートに示すように、金属板材料をフェ
ンダーの輪郭形状に切断し、切断縁部を削って平坦化
し、表面処理を施して、横断面円弧状などに曲げ加工
し、表面に塗装して縞模様を形成したり、着色帯を貼り
付けたりしている。また、図３に示すように、前記フェ
ンダー主体１に、電灯２２を設置したものがあり、小型
発電機２４をフェンダー主体１に近いこれの上，下支持
桿２３ａ，２３ｂに据え付けてある。前記小型発電機２
４には、自転車の車輪２１の金属縁２１ａに接する摩擦
輪２４ａを連結してある。そして、車輪２１が回転する
と金属縁２１ａとの摩擦によって摩擦輪２４ａが回転し
て小型発電機２４に電力が発生し、この電力を電線２５
を介して電灯２２の電球に供給し、電球を点灯させてい
る。2. Description of the Related Art A conventional bicycle fender is manufactured mainly by fendering by injection molding of a plastic material or bending of a metal plate. As shown in FIG. 1, the fender main body 1 made of a plastic material often has an injection molded product of only a single color, and a vertical stripe pattern in which colored bands 1b and 1c of different colors are attached to the surface of the molded product 1a. Some are, but they are only added to make the appearance look better. Fenders mainly made of metal plate,
As shown in the flowchart of FIG. 2, the metal plate material is cut into a fender contour shape, the cut edges are cut and flattened, surface treatment is performed, the cross section is bent into an arc shape, and the surface is painted. To form a striped pattern or to attach a colored band. As shown in FIG. 3, there is a fender main body 1 in which an electric lamp 22 is installed, and a small generator 24 is mounted on upper and lower support rods 23a and 23b near the fender main body 1. The small generator 2
4 is connected to a friction wheel 24a which is in contact with the metal edge 21a of the bicycle wheel 21. When the wheel 21 rotates, the friction wheel 24a rotates due to friction with the metal edge 21a, and electric power is generated in the small generator 24.
Is supplied to the light bulb of the electric light 22 via the light source to turn on the light bulb.
【０００３】[0003]
【発明が解決しようとする課題】前述した従来のフェン
ダーの製造方法では、フェンダー主体の表面に、着色帯
を貼り付けたり塗装を施したりして、模様を形成してい
るので、作業が面倒で長時間を要し、また着色帯の貼り
付けや塗装では、使用期間がある程度経過すると、剥が
れ落ちやすいという問題点があった。この発明は、前述
した問題点を解決して、表面に色彩が豊かな模様などが
長期間にわたって剥離せず、また多種多様の製品が容易
にできる、自転車または自動二輪車用フェンダーの製造
方法を提供することを目的としている。そして、小型発
電機によって走行中に電灯を点灯させるものでは、これ
らを接続する電線がフェンダー主体外に露出して外見を
悪くし、また電線と小型発電機とを接続する電線がフェ
ンダー主体外に露出し、これに固着してないので、外見
がよくない上に電線が小型発電機から外れ、電気回路の
短絡を惹き起こして電球の発光機能を損なうことを防止
できるようにした自転車または自動二輪車用フェンダー
の製造方法を提供することを目的としている。In the above-mentioned conventional method of manufacturing a fender, a pattern is formed by attaching a colored band or applying a coating to the surface of the fender main body, so that the operation is troublesome. There is a problem that it takes a long time, and it is easy to peel off after a certain period of use in the application and painting of the colored band. The present invention solves the above-mentioned problems, and provides a method for manufacturing a fender for a bicycle or a motorcycle, in which a richly colored pattern or the like does not peel off over a long period of time and a variety of products can be easily manufactured. It is intended to be. And, in the case of turning on the light during traveling by the small generator, the electric wire connecting these is exposed outside the fender main body and makes it look bad, and the electric wire connecting the electric wire and the small generator is outside the fender main body. Bicycles or motorcycles that are not exposed and do not adhere to them, so they do not look good and also prevent the electric wires from coming off the small generator and causing a short circuit in the electric circuit and impairing the light-emitting function of the bulb. It is intended to provide a method of manufacturing a fender for a vehicle.
【０００４】請求項１の発明は、押出成形機によって、
プラスチック材料を加熱、溶融させ、成形用型の押出通
路の基端部に設けた材料入口から前記押出通路を経て押
出通路の先端から前記プラスチック材料を板部材に成形
して押し出す第１工程と、前記板部材を真空成形機の真
空吸引によって所望の横断面形状に曲げ加工し、搬送機
によって曲げ加工した板部材を切断機に送り出し、所望
の長さと所望の両側縁形状に切断して、フェンダー主体
を得る第２工程とを具えた、自転車または自動二輪車用
フェンダーの製造方法において、第１工程では、成形用
型に、これの上面から斜め先端側に延び成形用型の押出
通路に開口する導電体供給通路を形成し、前記成形用型
の上方に設置したリールに巻回してある帯状の導電体を
引き出し、前記供給通路に通して前記押出通路内の加
熱、溶融したプラスチック材料に前記導電体を埋め込ん
で、プラスチック材料と導電体とを一体的に押出通路の
先端から押し出し、プラスチック材料を板部材に成形
し、第２工程では、切断機によって曲げ加工した板部材
とこれに埋め込んだ導電体とを１動作で切断し、フェン
ダー主体を得ることを特徴とする、自転車または自動二
輪車用フェンダーの製造方法としている。[0004] The invention of claim 1 is based on an extruder.
A first step of heating and melting the plastic material, molding and extruding the plastic material into a plate member from the tip of the extrusion passage through the extrusion passage from a material inlet provided at the base end of the extrusion passage of the molding die, The plate member is bent into a desired cross-sectional shape by vacuum suction of a vacuum forming machine, the bent plate member is sent out to a cutting machine by a carrier, and cut into a desired length and a desired side edge shape, and the fender is cut. In a method for manufacturing a fender for a bicycle or a motorcycle, comprising a second step of obtaining a main body, in the first step, the molding die extends obliquely from the upper surface thereof to the tip end side and opens into the extrusion passage of the molding die. A conductor supply passage is formed, and a strip-shaped conductor wound around a reel installed above the molding die is pulled out, and is heated and melted in the extrusion passage through the supply passage. The conductor is embedded in a plastic material, the plastic material and the conductor are integrally extruded from the end of the extrusion passage, and the plastic material is formed into a plate member. In the second step, the plate member is bent by a cutting machine. And a conductor embedded in the fender is cut in one operation to obtain a fender main body, thereby providing a method for manufacturing a fender for a bicycle or a motorcycle.
【０００５】請求項２の発明は、主押出成形機および副
押出成形機によって主色プラスチック材料およびこの材
料と色が異なる副色プラスチック材料をそれぞれ加熱、
溶融させ、主押出成形機によって前記主色プラスチック
材料を成形用型の押出通路の基端部に設けた主材料入口
から前記押出通路に押し出し、副押出成形機によって、
前記副色プラスチック材料を押出通路の中間部に開口す
る副色材料入口から前記主色プラスチック材料上に押し
出して結合させ、押出通路の先端から色分け分布した板
部材に成形して押し出す第１工程と、前記第２工程とを
有したことを特徴とする、請求項１に記載した自転車ま
たは自動二輪車用フェンダーの製造方法としている。According to a second aspect of the present invention, a main color plastic material and a sub-color plastic material having a different color from the material are heated by a main extruder and a sub-extruder, respectively.
Fused and extruded the main color plastic material from the main material inlet provided at the base end of the extrusion passage of the molding die into the extrusion passage by the main extrusion molding machine, and by the sub-extrusion molding machine,
A first step of extruding the sub-color plastic material onto the main color plastic material from a sub-color material inlet opening at an intermediate portion of the extrusion passage, bonding the main color plastic material to a color-distributed plate member from the tip of the extrusion passage, and extruding the same. And the second step. The method for manufacturing a fender for a bicycle or a motorcycle according to claim 1, further comprising:
【０００６】請求項３の発明は、複数台の副押出成形機
によって主色プラスチック材料と色が異なりかつ互いに
色が異なる副色プラスチック材料を加熱、溶融させ、前
記副色プラスチック材料を成形用型の押出通路の中間部
に開口する副色材料入口から主色プラスチック材料上に
押し出し、規則的または不規則的な模様に分布させて主
色プラスチック材料と結合させ、前記押出通路の先端か
ら板部材に成形して押し出す第１工程と、前記第２工程
とを有することを特徴とする、請求項２に記載の自転車
または自動二輪車用フェンダーの製造方法としている。According to a third aspect of the present invention, a plurality of sub-extrusion molding machines heat and melt a sub-color plastic material having a different color from the main color plastic material and different colors from each other, thereby forming the sub-color plastic material into a molding die. Extruded onto the main color plastic material from the sub-color material inlet opening at the middle of the extrusion passage, and distributed in a regular or irregular pattern and combined with the main color plastic material, and a plate member from the tip of the extrusion passage. 3. A method for manufacturing a fender for a bicycle or a motorcycle according to claim 2, comprising a first step of molding and extruding the fender and the second step.
【０００７】請求項４の発明は、第２工程後に、フェン
ダー主体の長手方向の２箇所に所望の間隔で導電体を貫
く貫通孔を厚さ方向に形成し、これらの貫通孔に鳩目状
のリベットを嵌挿してかしめ付け固定し、前記リベット
に端子板をねじによって締め付け、導電体と端子板とを
リベットを介してそれぞれ通電させる第３工程を付加し
たことを特徴とする、請求項１に記載の自転車または自
動二輪車用フェンダーの製造方法としている。According to a fourth aspect of the present invention, after the second step, through-holes penetrating the conductor at desired intervals are formed at two places in the longitudinal direction of the fender main body in the thickness direction, and eyelets are formed in these through-holes. The method according to claim 1, further comprising a third step of inserting and inserting a rivet, caulking and fixing, fastening a terminal plate to the rivet with a screw, and energizing the conductor and the terminal plate via the rivet. The manufacturing method of the described fender for a bicycle or a motorcycle.
【０００８】請求項５の発明は、第２工程後に、フェン
ダー主体の長手方向の２箇所に所望の間隔で導電体を貫
く貫通孔を厚さ方向に形成し、これらの貫通孔に鳩目状
のリベットを嵌挿してかしめ付け固定し、前記リベット
に端子板をねじによって締め付け、導電体と端子板とを
リベットを介してそれぞれ通電させる第３工程を付加し
たことを特徴とする、請求項２又は請求項３に記載の自
転車または自動二輪車用フェンダーの製造方法としてい
る。According to a fifth aspect of the present invention, after the second step, through-holes penetrating the conductor at desired intervals are formed at two places in the longitudinal direction of the fender main body in the thickness direction, and eyelets are formed in these through-holes. A third step in which a rivet is inserted and caulked and fixed, a terminal plate is fastened to the rivet with a screw, and a current is supplied to the conductor and the terminal plate through the rivet, respectively. A method for manufacturing a fender for a bicycle or a motorcycle according to claim 3.
【０００９】[0009]
【発明の実施の形態】この発明の第１実施形態に係る自
転車用フェンダーの製造方法につき、図４〜図８の各図
を参照して説明する。図４のフローチャートに示すよう
に、主色プラスチック材料と、この材料と色が異なる副
色プラスチック材料とを、主押出成形機と副押出成形機
とにより、それぞれ適切な温度に加熱して溶融させ、こ
れらを主押出成形機と副押出成形機とから後述するよう
に成形用型内に押し出す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for manufacturing a bicycle fender according to a first embodiment of the present invention will be described with reference to FIGS. As shown in the flow chart of FIG. 4, the main color plastic material and the sub-color plastic material having a different color from this material are heated to appropriate temperatures and melted by the main extruder and the sub-extruder, respectively. These are extruded from a main extruder and a sub-extruder into a molding die as described later.
【００１０】図５に示すように、成形用型３は、上型３
１と下型３２とからなり、これらを閉じた状態で長手方
向（左右方向）に貫通する押出通路３３が形成してあ
る。押出通路３３は、基端部に主色材料入口３３ａを形
成し、主色材料入口３３ａの先端側は横断面積を漸減さ
せて、ネック部３３ｂに接続してあり、このネック部３
３ｂから押出通路３３の先端側に延びる中間部３３ｃに
上型３１の上面および押出通路３３に上，下端が開口す
る小径の副色材料入口３３ｄを形成し、ネック部３３ｂ
の先端側にはこれより横断面積が若干大きく扁平な長方
形状横断面の先端部３３ｅを接続してある。[0010] As shown in FIG.
1 and a lower die 32, and an extruding passage 33 that penetrates in a longitudinal direction (left-right direction) in a closed state is formed. The extruding passage 33 has a main color material inlet 33a formed at a base end thereof, and a distal end side of the main color material inlet 33a is connected to a neck 33b with a gradually decreasing cross-sectional area.
A small-diameter sub-color material inlet 33d having an upper surface and a lower end open in the upper surface of the upper die 31 and the upper and lower ends of the extrusion passage 33 is formed in the intermediate portion 33c extending from the end 3b toward the tip end of the extrusion passage 33, and the neck portion 33b is formed.
Is connected to a front end portion 33e having a flat rectangular cross section with a slightly larger cross-sectional area than the front end portion.
【００１１】前記副色材料入口３３ｄは、２本を押出通
路３３の幅方向中央から等しい距離に配置してあり、ま
た、上型３１には、主色材料入口３３ａのネック部３３
ｂ近くに、ネック部３３ｂを限定するように１または複
数のストッパ板３３ｆを装着してある。そして、成形用
型３に設けたストッパ板３３ｆを開いて、加熱、溶融し
た主色プラスチック材料を主押出成形機によって成形用
型３の主色材料入口３３ａから押出通路３３に押し出
し、加熱、溶融した副色プラスチック材料を、副押出成
形機から押し出して２等分し、２本の副色材料入口３３
ｄから押出通路３３にスムーズに案内して押し出し、主
色プラスチック材料上に重ね、主色，副色プラスチック
材料を一体に結合させて押出通路３３の先端から押し出
し板部材に成形することで、第１工程を終わる（図４参
照）。The sub-color material inlets 33d are arranged at equal distances from the center in the width direction of the extrusion passage 33. The upper die 31 has a neck portion 33 of the main color material inlet 33a.
One or a plurality of stopper plates 33f are attached near b to limit the neck 33b. Then, the stopper plate 33f provided in the molding die 3 is opened, and the heated and melted main color plastic material is extruded from the main color material inlet 33a of the molding die 3 into the extrusion passage 33 by the main extruder, and heated and melted. The sub-colored plastic material extruded from the sub-extrusion molding machine is divided into two equal parts, and two sub-colored material inlets 33 are provided.
d, smoothly guide and extrude into the extrusion passage 33, overlap the main color plastic material, combine the main color and sub color plastic materials integrally, and form the extruded plate member from the tip of the extrusion passage 33 into the extruded plate member. One process is completed (see FIG. 4).
【００１２】押出通路３３から連続して押し出した板部
材４は、図６に示すように、主色プラスチック材料４１
の上部の一部を副色プラスチック材料４２，４３によっ
て分割した扁平な横断面長方形状に成形し、前記板部材
４表面に縦縞模様の色彩分布になっている。前記板部材
４は、押出通路３３から押し出された後も温かいままで
あり、この状態で真空成形機に搬送し、真空成形機によ
る真空引きで、図７に示すように、真空成形機の型によ
って円弧に近い横断面形状に曲げ加工する。この時点
で、板部材４は熱を放出して冷えており、横断面形状が
フェンダー主体の形状に成形してある。The plate member 4 continuously extruded from the extrusion passage 33 is, as shown in FIG.
Is molded into a flat rectangular cross section divided by sub-color plastic materials 42 and 43, and the surface of the plate member 4 has a color distribution of vertical stripes. The plate member 4 is still warm after being extruded from the extrusion passage 33. In this state, the plate member 4 is conveyed to a vacuum forming machine and evacuated by the vacuum forming machine, as shown in FIG. To bend into a cross-sectional shape close to an arc. At this point, the plate member 4 has cooled by emitting heat, and has a fender-shaped cross-sectional shape.
【００１３】その後、板部材４をベルトコンベアなどの
搬送機に支持して切断機に搬送し、切断機によって所要
長さに切断し、かつ両側縁４６，４７の外側が尖って平
坦な形状に切断する。なお、長さおよび両側縁の切断
は、同じ型によって一度に完了させ、図８に示すよう
に、フェンダー主体５に成形し、自転車の組立条件に従
って適切な位置に貫通孔５１をあけることで、第２工程
を終わる。なお、前記孔あけ工程は省略してもよい。Thereafter, the plate member 4 is supported on a conveyor such as a belt conveyor and conveyed to a cutting machine, cut by a cutting machine to a required length, and the outer sides of both side edges 46 and 47 are sharpened into a flat shape. Disconnect. In addition, the cutting of the length and both side edges is completed at a time by the same mold, and as shown in FIG. 8, the fender main body 5 is formed, and a through hole 51 is opened at an appropriate position according to the assembly conditions of the bicycle. The second step ends. Note that the hole making step may be omitted.
【００１４】また、１台の押出成形機によって、プラス
チック材料を加熱、溶融させ、成形用型の押出通路の基
端部に設けた材料入口から押出通路を経て、これの先端
から前記プラスチック材料を板部材に成形して押し出す
第１工程を行った後、前記板部材を前述した第２工程に
よって成形、切断してフェンダー主体を得るようにする
ことができ、この場合に、主押出成形機のみを作動さ
せ、副押出成形機は作動させず、成形用型の副色材料入
口を閉じて加熱、溶融させたプラスチック材料を成形用
型の主材料入口のみから押出通路に押し出すようにして
もよい。Further, the plastic material is heated and melted by one extruder, the plastic material is passed through an extrusion passage from a material inlet provided at a base end portion of the extrusion passage of the molding die, and the plastic material is discharged from a tip end thereof. After performing the first step of forming and extruding the plate member, the plate member can be formed and cut by the above-described second step to obtain a fender main body. In this case, only the main extruder is used. , The sub-extrusion molding machine is not operated, the sub-color material inlet of the molding die is closed, and the heated and melted plastic material may be extruded into the extrusion passage only from the main material entrance of the molding die. .
【００１５】また、第１工程において、１台の主押出成
形機と、２台の副押出成形機とを用い、これらにより主
色プラスチック材料と色が異なりかつ互いに色が異なる
副色プラスチック材料を成形に適切な温度にそれぞれ加
熱し、各副押出成形機によって、各副色プラスチック材
料を成形用型の各副色材料入口から主色プラスチック材
料上にそれぞれ押し出して分布させる以外、前述した第
１実施形態と同様な第１工程によって、板部材の表面に
互いに色が異なった縦縞模様の色彩分布ができる。[0015] In the first step, one main extruder and two sub-extruders are used, whereby the sub-color plastic materials having different colors from the main color plastic material and different colors from each other are used. The above-described first method is adopted except that each sub-color plastic material is extruded and distributed on the main color plastic material from each sub-color material inlet of the molding die by heating each to an appropriate temperature for molding and each sub-extrusion molding machine. By the first step similar to the embodiment, the color distribution of the vertical stripes having different colors from each other can be formed on the surface of the plate member.
【００１６】図９は第１実施形態の自転車用フェンダー
の製造方法の変形例による副色プラスチック材料の押出
部を示す。この変形例では、前，後２台の副押出成形機
６１，６２に設けた垂直な外筒６１ａ，６２ａの下端部
６１ｂ，６２ｂを小径にし、これらの下端部６１ｂ，６
２ｂを開閉する仕切板６１ｃ，６２ｃをそれぞれ設け、
仕切板６１ｃ，６２ｃの外端部を前記下端部６１ｂ，６
２ｂの前，後に設けたシリンダー機構６１ｄ，６２ｄの
ピストン軸６１ｅ，６２ｅの先端部にそれぞれ連結し、
前記下端部６１ｂ，６２ｂの下端開口に連結筒６３の上
端部を連結してある。FIG. 9 shows an extruded portion of a sub-color plastic material according to a modification of the method for manufacturing a bicycle fender of the first embodiment. In this modification, the lower end portions 61b, 62b of the vertical outer cylinders 61a, 62a provided in the front and rear two sub-extrusion molding machines 61, 62 are reduced in diameter, and these lower end portions 61b, 6
Partition plates 61c and 62c for opening and closing 2b are provided, respectively.
The outer ends of the partition plates 61c, 62c are connected to the lower ends 61b, 6c.
2b are connected to the front ends of piston shafts 61e, 62e of cylinder mechanisms 61d, 62d provided before and after 2b, respectively.
The upper ends of the connecting tubes 63 are connected to the lower ends of the lower ends 61b and 62b.
【００１７】連結筒６３は、下部６３ａの前後方向寸法
を漸減させて、下端扁平部６３ｂに連なり、上壁６３ｃ
に上端を固着した分離板６３ｄによって連結筒６３内を
下端扁平部６３ｂ近くまで前後に仕切ってある。下端扁
平部６３ｂは、成形用型３の上型３１に形成した副色材
料入口３３ｄに接続し、下端扁平部６３ｂおよび副色材
料入口３３ｄの水平断面形状を、成形用型３に設けた押
出通路３３の中間部３３ｃの幅に等しい横長長方形状に
してある。なお、この変形例の主，副押出成形機および
成形用型３の前述した以外の構成は、第１実施形態のも
のと同様である。The connecting cylinder 63 is connected to the lower end flat portion 63b by gradually reducing the front-rear dimension of the lower portion 63a, and is connected to the upper wall 63c.
The inside of the connecting cylinder 63 is partitioned back and forth to the vicinity of the lower end flat portion 63b by a separating plate 63d having an upper end fixed thereto. The lower end flat portion 63b is connected to the sub-color material inlet 33d formed in the upper die 31 of the molding die 3, and the horizontal cross-sectional shape of the lower end flat portion 63b and the sub-color material entrance 33d is formed in the molding die 3 by extrusion. The passage 33 has a horizontally long rectangular shape equal to the width of the intermediate portion 33c. The main and sub-extrusion molding machines and the molding die 3 of this modification are the same as those of the first embodiment except for the above-described configuration.
【００１８】そして、成形用型３に設けたストッパ板３
３ｆを開いて、加熱、溶融した主色プラスチック材料を
主押出成形機によって成形用型３の主色材料入口３３ａ
から押出通路３３に押し出し、前，後副押出成形機６
１，６２で、互いに色が異なりかつ主色プラスチック材
料とも色が異なる副色プラスチック材料を加熱、溶融さ
せ、時間制御器による指令でシリンダー機構６１ｄ，６
２ｄの一方を開動作させることで、閉じていた仕切板６
１ｃ，６２ｃの一方を開き、副押出成形機の一方から副
色プラスチック材料の一方を、連結筒６２および副色材
料入口３３ｄに通して押し出し、主色プラスチック材料
上に重ね、主色プラスチック材料と副色プラスチック材
料の一方とを一体に結合させる。The stopper plate 3 provided on the molding die 3
3f, the heated and melted main color plastic material is injected by the main extruder into the main color material inlet 33a of the molding die 3.
From the front and rear sub-extrusion molding machines 6
In steps 1 and 62, the sub-color plastic materials having different colors from each other and different from the main color plastic material are heated and melted, and the cylinder mechanisms 61d and 6 are commanded by the time controller.
By opening one of 2d, the closed partition plate 6 is closed.
1c and 62c are opened, and one of the sub-color plastic materials is extruded from one of the sub-extrusion molding machines through the connecting cylinder 62 and the sub-color material inlet 33d, and is overlaid on the main color plastic material. One of the sub-colored plastic materials is joined together.
【００１９】所定時間経過した後、前記時間制御器の指
令によってシリンダー機構６１ｄ，６２ｄの一方を閉動
作させ、仕切板６１ｃ，６２ｃの両方が閉じた状態と
し、副色プラスチック材料の押し出しを休止させて、主
色プラスチック材料の押し出しを続ける。After a lapse of a predetermined time, one of the cylinder mechanisms 61d and 62d is closed according to a command from the time controller, so that both the partition plates 61c and 62c are closed, and the extrusion of the sub-color plastic material is stopped. And continue to extrude the main color plastic material.
【００２０】所定時間経過した後、時間制御器の指令に
よってシリンダー機構６１ｄ，６２ｄの他方を開動作さ
せることで、仕切板６１ｃ，６２ｃの他方を開き、副押
出成形機の他方から副色プラスチック材料の他方を、主
色プラスチック材料上に重ね、これらの材料を一体に結
合させ、所定時間経過した後、時間制御器によってシリ
ンダー機構６１ｄ，６２ｄの他方を閉動作させ、仕切板
６１ｃ，６２ｃの両方を閉じ、副色プラスチック材料の
押し出しを休止させる。After a lapse of a predetermined time, the other of the partition plates 61c and 62c is opened by opening the other of the cylinder mechanisms 61d and 62d in response to a command from the time controller, and the other of the sub-extrusion molding machine is used to open the sub-color plastic material. The other of the cylinder mechanisms 61d and 62d is overlaid on the main color plastic material, and these materials are integrally joined. After a predetermined time has elapsed, the other of the cylinder mechanisms 61d and 62d is closed by the time controller, and both the partition plates 61c and 62c are closed. Is closed and the extrusion of the secondary color plastic material is stopped.
【００２１】以後、前述した動作を繰り返し、副色プラ
スチック材料の一方と他方とを、所定時間の押し出し休
止時間を介して交互に主色プラスチック材料上に結合さ
せて、押出通路３３の先端から押し出すことで、第１工
程を終わる。その後、前述した第１実施形態と同様な第
２工程を行うことで、図１０に示すように、板部材の表
面に互いに異なった色の横縞模様５ａ，５ｂがあるフェ
ンダー主体５を得る。Thereafter, the above-described operation is repeated, and one side and the other side of the sub-color plastic material are alternately connected to the main color plastic material through a predetermined pause time for extrusion, and are extruded from the tip of the extrusion passage 33. Thus, the first step is completed. Thereafter, by performing the second step similar to that of the above-described first embodiment, as shown in FIG. 10, the fender main body 5 having the horizontal stripes 5a and 5b of different colors on the surface of the plate member is obtained.
【００２２】なお、前述の変形例では、フェンダー主体
５の両端部は、仕切板６１ｃ，６２ｃの両方が閉じた時
間を長くすることで、副色プラスチック材料からの押し
出し休止時間を長くして、横縞模様をなくしたが、時間
制御器によって副色プラスチック材料を押し出す時間を
適宜変更することで、横縞の幅や間隔を規則的、不規則
的に適宜変更できる。In the above-described modified example, both ends of the fender main body 5 extend the time during which both the partition plates 61c and 62c are closed, thereby increasing the pause time for extruding from the sub-color plastic material. Although the horizontal stripe pattern is eliminated, the width and the interval of the horizontal stripe can be changed regularly and irregularly by appropriately changing the time for extruding the sub-color plastic material by the time controller.
【００２３】従って、第１実施形態およびその変形例に
よるフェンダーの製造方法は、副色プラスチックの材料
入口の数、形状、位置や、副色プラスチック材料の押し
出し、休止時間の変更によって、黒白などの単調な色彩
分布や複数の色の縦縞、横縞を規則的、不規則的に設け
ることができ、また異なった色を混合させることもで
き、多種、多様の色彩分布にすることが容易にでき、色
彩豊かな模様を施したフェンダー主体が得られ、しか
も、主色プラスチックにある程度の厚さで副色プラスチ
ックが埋め込まれて一体に結合しているので、長期間使
用しても副色プラスチックが剥がれ落ちる恐れがない。Therefore, the method of manufacturing the fender according to the first embodiment and its modified example is based on the change of the number, shape and position of the material inlets of the sub-color plastic, the extrusion of the sub-color plastic material, and the change of the pause time. Monotone color distribution and vertical and horizontal stripes of multiple colors can be provided regularly and irregularly, and different colors can be mixed, it can be easily made into various and various color distributions, A fender main body with a colorful pattern can be obtained, and the sub-color plastic is embedded in the main color plastic with a certain thickness and bonded together, so that the sub-color plastic peels off even after long-term use There is no fear of falling.
【００２４】この発明の第２実施形態に係る自転車用フ
ェンダーの製造方法につき、図１１〜１３の各図を参照
して説明する。図１１のフローチャートに示すように、
プラスチック材料を押出成形機によって、適切な温度に
加熱して溶融させる。図１２に示すように、成形用型３
は、上型３１に基端側外周面から斜め先端側に延び、押
出通路３３の中間部３３ｃと先端部３３ｃとが接続する
部分近くに開口する導電体供給通路３４を形成し、副色
材料入口を形成しないこと以外、図５に示し前述した第
１実施形態の製造方法に用いる成形用型と実質的に同構
成にしてある。なお、図１２中の図５と同符号は対応す
る部分を示している。A method of manufacturing a bicycle fender according to a second embodiment of the present invention will be described with reference to FIGS. As shown in the flowchart of FIG.
The plastic material is heated to an appropriate temperature and melted by an extruder. As shown in FIG.
Is formed in the upper die 31 to extend obliquely from the outer peripheral surface on the base end side to the distal end side, and to form a conductor supply passage 34 which is open near a portion where the intermediate portion 33c and the distal end portion 33c of the extrusion passage 33 are connected. Except that the inlet is not formed, it has substantially the same configuration as the molding die used in the manufacturing method of the first embodiment shown in FIG. 5 and described above. Note that the same reference numerals as those in FIG. 5 in FIG. 12 indicate corresponding parts.
【００２５】成形用型３の上方基端部近くには、リール
７１を配置し、リール７１を適宜の手段で軸回りに回転
可能に適当な部材で支持し、リール７１には帯状の導電
体７２を繰り出し可能に巻回してあり、手作業などによ
って導電体７２の先端部を引き出し、成形用型３に設け
た前記供給通路３４に挿通させ、押出通路３３の先端側
に湾曲させて押出通路３３の先端から若干突出させ、こ
の突出部を保持する。In the vicinity of the upper base end of the molding die 3, a reel 71 is disposed, and the reel 71 is supported by an appropriate member so as to be rotatable around an axis by an appropriate means. The leading end of the conductor 72 is pulled out by hand or the like, inserted into the supply passage 34 provided in the molding die 3, and bent toward the leading end of the extrusion passage 33 to push out the extrusion passage. 33 is slightly protruded from the front end, and this protruding portion is held.
【００２６】この状態で、押出成形機を動作させて、加
熱、溶融したプラスチック材料４４を成形用型３の基端
部に設けた材料入口３３ａから押出通路３３内に押し出
して充填させ、プラスチック材料４４に押出通路３３の
先端部３３ｅに位置する導電体７２を埋め込み、導電体
７２の突出部の保持を解除することで、プラスチック材
料４４の押し出し力によって帯状の導電体７２をリール
７１から繰り出しつつプラスチック材料４４と一体的に
送り出し、導電体７２をプラスチック材料４４に埋め込
んで一体に結合させ、押出通路３３の先端から板部材４
に成形して押し出し、第１工程を終わる（図１１参
照）。In this state, the extruder is operated to extrude the heated and molten plastic material 44 from the material inlet 33a provided at the base end of the molding die 3 into the extrusion passage 33 to be filled therein. By burying the conductor 72 located at the distal end 33 e of the extrusion passage 33 in the 44 and releasing the protrusion of the conductor 72, the strip-shaped conductor 72 is fed out of the reel 71 by the pushing force of the plastic material 44. The conductor 72 is sent out integrally with the plastic material 44, and the conductor 72 is embedded in the plastic material 44 to be integrally connected.
Then, the first step is completed (see FIG. 11).
【００２７】なお、帯状の導電体７２は、板部材４の厚
さ方向（上下方向）および左右方向に傾斜しないように
するため、成形用型３の前方に導電体７２の先端部を予
め突出させて位置決めし、この状態で、成形用型３の押
出通路３３に加熱、溶融させたプラスチック材料４４を
押し出し、また、プラスチック材料４４の押し出し力の
みでは導電体７２を繰り出せない場合には、適宜の送出
機構をリール７１と成形用型３の上型３１との間に設
け、送出機構によって導電体７２を送り出すようにす
る。さらに、導電体７２は、板部材４の幅方向中央から
一側寄りに埋め込むことが好ましい。In order to prevent the strip-shaped conductor 72 from inclining in the thickness direction (up-down direction) and left-right direction of the plate member 4, the leading end of the conductor 72 is projected in front of the molding die 3 in advance. In this state, the heated and molten plastic material 44 is extruded into the extrusion passage 33 of the molding die 3, and if the conductor 72 cannot be fed out only by the pushing force of the plastic material 44, the Is provided between the reel 71 and the upper mold 31 of the molding die 3, and the conductor 72 is sent out by the sending mechanism. Further, it is preferable that the conductor 72 is embedded near one side from the center in the width direction of the plate member 4.
【００２８】押出通路３３から押し出した板部材４は、
前記第１実施形態の第２工程と同様に、温かいままで真
空成形機に搬送し、これによる真空引きで、円弧に近い
フェンダー主体の横断面形状に成形し、その後、搬送機
によって切断機に搬送し、図１３に示すように、切断機
によって、曲げ加工した板部材４とこれに埋め込んだ導
電体７２を１動作によって切断しかつ板部材４の両側縁
４６，４７を外側が尖った平坦な形状に切断する。The plate member 4 extruded from the extrusion passage 33 is
Similarly to the second step of the first embodiment, the wafer is conveyed to a vacuum forming machine until it is still warm, and is evacuated to form a fender-based cross-sectional shape close to an arc. As shown in FIG. 13, the bent plate member 4 and the conductor 72 embedded in the bent plate member 4 are cut by one operation by a cutting machine, and both side edges 46 and 47 of the plate member 4 are flattened on the outside as shown in FIG. Cut into different shapes.
【００２９】さらに、図１３，図１４，図１５に示すよ
うに、切断した板部材４一側部の長さ方向の２箇所に所
望の間隔で導電体７２を貫いた貫通孔５２ａ，５２ｂ
を、また貫通孔５２ｂの板部材４幅方向中央位置に接続
孔５３を、さらにこれの板部材４長さ方向に若干離れた
位置に取付孔５４を、それぞれ板部材４の厚さ方向に貫
通させて穿ち、第２工程を終わる（図１１参照）。Further, as shown in FIGS. 13, 14 and 15, through holes 52a and 52b penetrating the conductor 72 at desired intervals at two locations along the length of one side of the cut plate member 4.
And a connection hole 53 at the center of the through-hole 52b in the width direction of the plate member 4, and a mounting hole 54 at a position slightly apart in the length direction of the plate member 4 in the thickness direction of the plate member 4. The second step is completed (see FIG. 11).
【００３０】図１４，図１６，図１７に示すように、前
記貫通孔５２ａ，５２ｂには鳩目状のリベット５５ａ，
５５ｂをそれぞれ嵌挿し、これらの先端突出部をフェン
ダー主体５にかしめ付け固定し、端子板５６ａ，５６ｂ
をねじ５７ａ，５７ｂによってリベット５５ａ，５５ｂ
に締め付け、導電体７２にリベット５５ａ，５５ｂを介
して端子板５６ａ，５６ｂをそれぞれ接続し、接続孔５
３には接続板５８を嵌めた鳩目状のリベット５３を嵌挿
してフェンダー主体５にかしめ付け固定し、リベット５
５ｃにねじ５７ｃを螺合させることで、第３工程を終わ
る。As shown in FIGS. 14, 16 and 17, the eyelets 52a and 52b have eyelet-shaped rivets 55a and 55b, respectively.
55b, each of which has a protruding end portion caulked and fixed to the fender main body 5, and the terminal plates 56a, 56b
Are rivets 55a, 55b by screws 57a, 57b.
And the terminal plates 56a and 56b are connected to the conductor 72 via rivets 55a and 55b, respectively.
The eyelet 3 is fitted with an eyelet-shaped rivet 53 fitted with a connection plate 58 and caulked and fixed to the fender main body 5.
The third step is completed by screwing the screw 57c into 5c.
【００３１】次に、第３実施形態の製造方法で製造した
フェンダーの使用につき、図１６，図１７を参照して説
明する。図３に示し前述した従来の自転車と同様に、車
輪２１の軸部に適宜の手段で固定して放射状に延びる金
属製の上，下支持桿２３ａ，２３ｂに、フェンダー主体
５をそれぞれ固定し、上支持桿２３ａに小型発電機２４
を据え付ける。Next, the use of the fender manufactured by the manufacturing method of the third embodiment will be described with reference to FIGS. Like the conventional bicycle shown in FIG. 3 and described above, the fender main body 5 is fixed to metal upper and lower support rods 23a and 23b which are fixed to the shaft of the wheel 21 by appropriate means and extend radially, respectively. A small generator 24 is mounted on the upper support rod 23a.
Is installed.
【００３２】図１６に示すように、小型発電機２４に接
続した第１の電線２５ａの先端部を上方の端子板５６ａ
に接続し、下方の端子板５６ｂに接続した第２の電線２
５ｂを、尾灯などの電灯２２を構成する電球２６の口金
２６ａに接続し、下支持桿２３ｂのフェンダー主体５表
面に支持した部分に接続板２７を接続する。As shown in FIG. 16, the distal end of the first electric wire 25a connected to the small generator 24 is connected to the upper terminal plate 56a.
And the second electric wire 2 connected to the lower terminal plate 56b.
5b is connected to a base 26a of a light bulb 26 constituting the electric light 22 such as a tail light, and a connection plate 27 is connected to a portion of the lower support rod 23b supported on the surface of the fender main body 5.
【００３３】透光性プラスチックの成形品からなるカバ
ー２８内に支え板２８ａを一体に形成し、支え板２８ａ
に設けた嵌合孔２８ｂに電球２６の口金２６ａ部または
ガラス球２６ｂの口金２６ａに近い部分を嵌合保持さ
せ、カバー２８をフェンダー主体５の表面に着脱可能に
支持させ、口金２６ａの下端中央部にこれと絶縁して設
けた端子２６ｃを取付孔５３にかしめ付けたリベット５
５ｃに螺合したねじ５７ｃの頭部に当接させる。A support plate 28a is integrally formed in a cover 28 made of a light-transmitting plastic molded product.
The base 26a of the bulb 26 or a portion of the glass bulb 26b close to the base 26a is fitted and held in the fitting hole 28b provided in the base member 26, the cover 28 is detachably supported on the surface of the fender main body 5, and the center of the lower end of the base 26a. A rivet 5 in which a terminal 26c provided insulated from the rivet 5 is crimped to a mounting hole 53.
5c is brought into contact with the head of the screw 57c.
【００３４】前記構成にしたことで、小型発電機２４で
発生した電力が、第１の電線２５ａ、端子板５６ａ、リ
ベット５５ａ、導電体７２、リベット５５ｂ、端子板５
６ｂ、第２の電線２５ｂ、電球２６の口金２６ａ、電球
２６内に設けたフィラメント２６ｄ、端子２６ｃ、ねじ
５７ｃ、リベット５５ｃ、接続板５８、下支持桿２３
ｂ、車軸、上支持桿２３ａおよび第３の電線２５ｃを経
て小型発電機２４に戻って流れる回路を構成する。With the above configuration, the electric power generated by the small generator 24 is supplied to the first electric wire 25a, the terminal plate 56a, the rivet 55a, the conductor 72, the rivet 55b, the terminal plate 5
6b, the second electric wire 25b, the base 26a of the bulb 26, the filament 26d provided in the bulb 26, the terminal 26c, the screw 57c, the rivet 55c, the connection plate 58, the lower support rod 23
b, a circuit that flows back to the small generator 24 via the axle, the upper support rod 23a, and the third electric wire 25c is configured.
【００３５】従って、自転車の走行中に、小型発電機２
４の摩擦輪２４ａの回転によって得た小型発電機２４の
電力を、前記回路によって電球２６のフィラメント２６
ｄに供給して電球２６を点灯させることができる。な
お、取付孔５４は下支持桿２３ｂとフェンダー主体５と
をビス、ナットなどによって固定するために用い、また
導電体７２の両端、上方のリベット５５ａ、端子板５６
ａ、ねじ５７ａなどは絶縁性塗料などで覆うことが好ま
しい。そして、第１実施形態に示すように、フェンダー
主体は、主押出成形機および副押出成形機を用いて、主
色プラスチック材料および副色プラスチック材料を加
熱、溶融させて成形用型に押し出し、表面に色彩豊かな
縦縞模様などを設けるようにしてもよい。Therefore, while the bicycle is running, the small generator 2
The electric power of the small generator 24 obtained by the rotation of the friction wheel 24a of No. 4
d to turn on the light bulb 26. The mounting holes 54 are used to fix the lower support rod 23b and the fender main body 5 with screws, nuts, or the like, and are provided at both ends of the conductor 72, the upper rivet 55a, and the terminal plate 56.
a, the screws 57a and the like are preferably covered with an insulating paint or the like. Then, as shown in the first embodiment, the main fender uses a main extruder and a sub-extruder to heat and melt the main color plastic material and the sub color plastic material, extrude them into a molding die, May be provided with a colorful vertical stripe pattern or the like.
【００３６】前述したように第２実施形態の製造方法に
よって得たフェンダー主体は、板部材の長さ方向に治っ
て帯状の導電体を埋設したことで、電線を短かくして外
見をよくすることができ、また電線が変位して短絡する
ことも防止できる。As described above, the main body of the fender obtained by the manufacturing method of the second embodiment can be shortened in the length direction of the plate member and buried in the strip-shaped conductor, so that the electric wire can be shortened and the appearance can be improved. It is also possible to prevent the electric wire from being displaced and short-circuited.
【００３７】前記実施形態では、自転車用フェンダーの
製造方法について述べたが、この発明は、フェンダー主
体の横断面形状および寸法などを変更することで、自動
二輪車用フェンダーの製造方法にも適用できる。また、
この発明は、前記実施形態に限定されるものではなく、
請求項１〜５の範囲で、適宜修正、変更できる。In the above embodiment, the method for manufacturing a bicycle fender has been described. However, the present invention can be applied to a method for manufacturing a motorcycle fender by changing the cross-sectional shape and dimensions of the fender. Also,
The present invention is not limited to the above embodiment,
Modifications and changes can be made as appropriate within the scope of claims 1 to 5.
【００３８】[0038]
【発明の効果】以上説明したように、請求項１の発明に
係る自転車または自動二輪車用フェンダーの製造方法
は、押出成形機によって、加熱、溶融させたプラスチッ
ク材料を、成形用型の押出通路に通し、板部材に成形し
て連続的に押し出し、押し出した板部材が温かい状態で
真空成形機の真空吸引によって所望の横断面形状に曲げ
加工することで、これらの加工が短時間で容易にでき、
その後、搬送機によって曲げ加工した板部材を切断機に
送り出し、板部材を冷えた状態で所望の長さおよび両側
縁形状に切断することで、フェンダー主体を安価に量産
できる。As described above, according to the method for manufacturing a fender for a bicycle or a motorcycle according to the first aspect of the present invention, a plastic material heated and melted by an extruder is introduced into an extrusion passage of a molding die. By passing through, forming into a plate member and extruding continuously, the extruded plate member is bent into a desired cross-sectional shape by vacuum suction of a vacuum forming machine in a warm state, so that these processes can be easily performed in a short time. ,
Thereafter, the plate member that has been bent by the transporter is sent to a cutting machine, and the plate member is cut into a desired length and both side edges in a cooled state, so that the fender main body can be mass-produced at low cost.
【００３９】そして、プラスチック材料の射出成形品に
比べ、横断面形状や長さの変更が容易であり、前輪用，
後輪用のフェンダーの製造ができる上に、後述する請求
項２の発明のようにフェンダー主体の表面に色が異なる
縞模様などを設けたり、請求項３の発明のように、帯状
の電動体を埋め込むなど、多種、多様のフェンダーを得
ることが成形用型の交換などによって容易にできる。The cross-sectional shape and the length can be easily changed as compared with the injection molded product made of a plastic material.
A fender for a rear wheel can be manufactured, and a stripe pattern having a different color is provided on the surface of the fender main body as in the invention of claim 2 described later, or a belt-shaped electric body as in the invention of claim 3 Various types of fenders can be easily obtained by exchanging molding dies.
【００４０】請求項２の発明に係る自動車または自動二
輪車用フェンダーの製造方法は、主，副押出成形機によ
って、互いに色が異なる主色，副色プラスチック材料を
それぞれ加熱、溶融させ、主押出成形機によって主色プ
ラスチック材料を成形用型の押出通路の基端部に設けた
主材料入口から前記押出通路に押し出し、副押出成形機
によって副色プラスチック材料を押出通路の中間部に開
口する副色材料入口から主色プラスチック材料上に押し
出して結合させ、押出通路の先端から押し出すことで、
主色，副色プラスチック材料によって、表面に色が異な
る縞模様などに色分け分布させた板部材を得る。According to a second aspect of the present invention, there is provided a method of manufacturing a fender for an automobile or a motorcycle, wherein main and sub-color plastic materials having different colors are heated and melted by a main and sub-extrusion molding machine, respectively. The main color plastic material is extruded from the main material inlet provided at the base end of the extrusion passage of the molding die into the extrusion passage by a machine, and the sub-color plastic material is opened at the middle part of the extrusion passage by the sub-extrusion molding machine. By extruding and joining the main color plastic material from the material inlet and extruding from the end of the extrusion passage,
A plate member is obtained in which a color is distributed in a stripe pattern having different colors on the surface depending on the primary color and the secondary color plastic material.
【００４１】その後、請求項１の発明と同様に、前記板
部材を曲げ加工して切断することで、色彩が豊かな美し
いフェンダー主体を得ることができ、このフェンダー主
体は、主色プラスチックに、ある程度の厚さで副色プラ
スチックが埋め込まれて一体に結合しているので、長期
間使用しても副色プラスチックが剥れ落ちる恐れがな
い。Thereafter, similarly to the first aspect of the present invention, by bending and cutting the plate member, a beautiful fender main body with a rich color can be obtained. Since the sub-color plastic is embedded and integrally bonded with a certain thickness, there is no possibility that the sub-color plastic will peel off even if used for a long time.
【００４２】請求項３の発明は、請求項２の自転車また
は自動二輪車用フェンダーの製造方法において、複数台
の副押出成形機によって主色プラスチック材料と色が異
なり、かつ互いに色が異なる副色プラスチック材料を加
熱、溶融させ、前記副色プラスチック材料を成形用型の
押出通路の中間部に開口する副色材料入口から、主色プ
ラスチック材料上に押し出し、規則的または不規則的な
模様に分布させて主色プラスチック材料に結合させ、押
出通路の先端から板部材に成形して押し出すようにした
ので、３色以上の縞模様などがあり、より色彩が豊かで
美しいフェンダー主体を得ることができる。According to a third aspect of the present invention, there is provided the method of manufacturing a fender for a bicycle or a motorcycle according to the second aspect, wherein a plurality of sub-extrusion molding machines have different colors from the main color plastic material and have different colors from each other. The material is heated and melted, and the sub-color plastic material is extruded onto the main color plastic material from a sub-color material inlet opening in the middle of the extrusion passage of the molding die, and distributed in a regular or irregular pattern. The main fender is formed into a plate member from the end of the extrusion passage and extruded from the tip of the extruding passage, so that there are striped patterns of three or more colors, so that a fender main body with richer colors and beautifulness can be obtained.
【００４３】請求項４の発明は、請求項１〜３の自転車
または自動二輪車用フェンダーの製造方法において、成
形用型に、これの上面から斜め先端側に延び成形用型の
押出通路に開口する導電体供給通路を形成し、前記成形
用型の上方に設置したリールに巻回してある帯状の導電
体を引き出して前記供給通路に通し、前記押出通路内の
加熱、溶融したプラスチック材料に前記導電体を埋め込
んで、プラスチック材料と導電体とを一体的に押出通路
の先端から押し出し、プラスチック材料を板部材に成形
し、その後、切断機によって曲げ加工した板部材とこれ
に埋め込んだ導電体とを１動作で切断してフェンダー主
体を得るようにしたので、フェンダーに設ける電球への
給電に、フェンダー主体に埋め込んだ導電体を用いるこ
とができ、電線のフェンダー外への露出を少なくして外
見をよくし、また電線がフェンダーなどから外れて電気
回路が短絡することを防止できる。According to a fourth aspect of the present invention, there is provided the method for manufacturing a fender for a bicycle or a motorcycle according to any one of the first to third aspects, wherein the molding die extends obliquely from the upper surface thereof to the extruding passage of the molding die. A conductor supply passage is formed, and a strip-shaped conductor wound around a reel installed above the molding die is pulled out and passed through the supply passage. The body is embedded, the plastic material and the conductor are integrally extruded from the tip of the extrusion passage, the plastic material is formed into a plate member, and then the plate member bent by a cutting machine and the conductor embedded in the plate member are formed. Since the main body of the fender is obtained by cutting in one operation, an electric conductor embedded in the main body of the fender can be used for power supply to the electric bulb provided in the fender. To improve the appearance by reducing exposure to outside gender, also possible to prevent the wire from shorting electrical circuits off the like fenders.
【００４４】とくに、請求項５の発明のように、請求項
４の製造方法によって得たフェンダー主体の長手方向の
２箇所に所望の間隔で導電体を貫く貫通孔を厚さ方向に
形成し、これらの貫通孔に鳩目状のリベットを嵌挿して
かしめ付け固定し、前記リベットに端子板をねじによっ
て締め付け、導電体と端子板とをリベットを介してそれ
ぞれ通電させることで、フェンダー主体の支持桿に据え
付けた小型発電機の電力を、前記支持桿に沿わせてこれ
に装着した電線を一方の端子板に接続し、他方の端子板
を電線を介して電球の適所に接続することで、電球の点
灯を安定して行うことができて好ましい。In particular, as in the fifth aspect of the present invention, through-holes penetrating through the conductor at desired intervals are formed at two places in the longitudinal direction of the fender main body obtained by the manufacturing method of the fourth aspect in the thickness direction, Eyelet-shaped rivets are inserted into these through holes, caulked and fixed, the terminal plate is screwed to the rivet, and the conductor and the terminal plate are respectively energized through the rivet, so that the support rod mainly composed of a fender is provided. By connecting the electric power of the small generator installed on the support rod along the support rod, connecting the electric wire attached to the terminal to one terminal plate, and connecting the other terminal plate to the appropriate place of the electric bulb via the electric wire, Can be stably performed, which is preferable.
【図１】従来の自転車または自動二輪車用フェンダーを
示した分解斜視図。FIG. 1 is an exploded perspective view showing a conventional bicycle or motorcycle fender.
【図２】従来の自転車または自動二輪車用フェンダーの
製造工程のフローチャート。FIG. 2 is a flowchart of a conventional manufacturing process of a fender for a bicycle or a motorcycle.
【図３】図１に示したフェンダーの使用状態の斜視図。FIG. 3 is a perspective view of the use state of the fender shown in FIG. 1;
【図４】この発明の第１実施形態に係る自転車または自
動二輪車用フェンダーの製造工程を示したフローチャー
ト。FIG. 4 is a flowchart showing a manufacturing process of the bicycle or motorcycle fender according to the first embodiment of the present invention.
【図５】この発明の第１実施形態に係るフェンダーの製
造に使用する成形用型を示した縦断面図。FIG. 5 is a longitudinal sectional view showing a molding die used for manufacturing the fender according to the first embodiment of the present invention.
【図６】図５に示した成形用型から押し出した板部材の
横断面図。FIG. 6 is a cross-sectional view of a plate member extruded from the molding die shown in FIG.
【図７】図６に示した板部材によって製造した製品の横
断面図。FIG. 7 is a cross-sectional view of a product manufactured by using the plate member shown in FIG. 6;
【図８】図７に示した製品の斜視図。8 is a perspective view of the product shown in FIG.
【図９】この発明の第１実施形態に係るフェンダーの製
造に使用する副押出成形機の変形例を成形用型と共に示
した断面図。FIG. 9 is a sectional view showing a modified example of the sub-extrusion molding machine used for manufacturing the fender according to the first embodiment of the present invention, together with a molding die.
【図１０】この発明の第１実施形態に係るフェンダーの
製造方法の変形例によって製造した製品の斜視図。FIG. 10 is a perspective view of a product manufactured by a modified example of the method for manufacturing a fender according to the first embodiment of the present invention.
【図１１】この発明の第２実施形態に係る自転車または
自動二輪車用フェンダーの製造工程を示したフローチャ
ード。FIG. 11 is a flowchart showing a manufacturing process of a fender for a bicycle or a motorcycle according to a second embodiment of the present invention.
【図１２】この発明の第２実施形態に係るフェンダーの
製造に使用する成形用型を導電体と共に示した横断面
図。FIG. 12 is a cross-sectional view showing a molding die used for manufacturing a fender according to a second embodiment of the present invention together with a conductor.
【図１３】この発明の第２実施形態に係るフェンダーの
製造方法の第２工程で得たフェンダー主体の横断面図。FIG. 13 is a cross-sectional view of the main part of the fender obtained in the second step of the method for manufacturing a fender according to the second embodiment of the present invention.
【図１４】この発明の第２実施形態に係るフェンダーの
製造方法の第３工程説明図。FIG. 14 is an explanatory view of a third step in the method for manufacturing a fender according to the second embodiment of the present invention.
【図１５】図１４のＡ部の拡大図。FIG. 15 is an enlarged view of a part A in FIG. 14;
【図１６】この発明の第２実施形態に係るフェンダーの
製造方法によって製造した製品の使用状態の横断面図。FIG. 16 is a cross-sectional view of a use state of a product manufactured by the method for manufacturing a fender according to the second embodiment of the present invention.
【図１７】図１６に示した製品の使用状態の部分側面
図。FIG. 17 is a partial side view of the use state of the product shown in FIG. 16;
２１ 自転車の車輪 ２２ 電灯 ２３ａ 上支持桿 ２３ｂ 下支持桿 ２４ 小型発電機 ２６ 電球 ３ 成形用型 ３１ 上型 ３２ 下型 ３３ 押出通路 ３３ａ 材料入口 ３３ｄ 材料入口 ３４ 導電体供給通路 ４ 板部材 ４１ 主色プラスチック材料 ４２ 副色プラスチック材料 ４３ 副色プラスチック材料 ５ フェンダー主体 ５２ａ 貫通孔 ５２ｂ 貫通孔 ５５ａ リベット ５５ｂ リベット ５６ａ 端子板 ５６ｂ 端子板 ５７ａ ねじ ５７ｂ ねじ ７１ リール ７２ 導電板 DESCRIPTION OF SYMBOLS 21 Bicycle wheel 22 Electric light 23a Upper support rod 23b Lower support rod 24 Small generator 26 Light bulb 3 Molding mold 31 Upper mold 32 Lower mold 33 Extrusion passage 33a Material inlet 33d Material inlet 34 Conductor supply passage 4 Plate member 41 Main color Plastic material 42 Secondary color plastic material 43 Secondary color plastic material 5 Fender main body 52a Through hole 52b Through hole 55a Rivet 55b Rivet 56a Terminal plate 56b Terminal plate 57a Screw 57b Screw 71 Reel 72 Conductive plate
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B29C 47/00 - 47/96 B29C 51/00 - 51/46 B29C 69/00 - 69/02 B29D 31/00 B62J 15/00──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 6 , DB name) B29C 47/00-47/96 B29C 51/00-51/46 B29C 69/00-69/02 B29D 31 / 00 B62J 15/00
Claims (5)
を加熱、溶融させ、成形用型の押出通路の基端部に設け
た材料入口から前記押出通路を経て押出通路の先端から
前記プラスチック材料を板部材に成形して押し出す第１
工程と、 前記板部材を真空成形機の真空吸引によって所望の横断
面形状に曲げ加工し、搬送機によって曲げ加工した板部
材を切断機に送り出し、所望の長さと所望の両側縁形状
に切断して、フェンダー主体を得る第２工程とを具え
た、自転車または自動二輪車用フェンダーの製造方法に
おいて、 第１工程では、成形用型に、これの上面から斜め先端側
に延び成形用型の押出通路に開口する導電体供給通路を
形成し、前記成形用型の上方に設置したリールに巻回し
てある帯状の導電体を引き出し、前記供給通路に通して
前記押出通路内の加熱、溶融したプラスチック材料に前
記導電体を埋め込んで、プラスチック材料と導電体とを
一体的に押出通路の先端から押し出し、プラスチック材
料を板部材に成形し、第２工程では、切断機によって曲
げ加工した板部材とこれに埋め込んだ導電体とを１動作
で切断し、フェンダー主体を得ることを特徴とする、自
転車または自動二輪車用フェンダーの製造方法。1. A plastic material is heated and melted by an extruder, and the plastic material is passed through the extruding passage from a material inlet provided at the base end of the extruding passage of a molding die, and then the plastic material is transferred from the tip of the extruding passage to a plate member. The first to extrude and extrude
And bending the plate member into a desired cross-sectional shape by vacuum suction of a vacuum forming machine, sending out the bent plate member by a carrier to a cutting machine, and cutting the plate member into a desired length and a desired side edge shape. And a second step of obtaining a main body of the fender, the method comprising the steps of: forming a fender for a bicycle or a motorcycle in a first step; A conductive material supply passage is formed that opens to the outside, a strip-shaped conductor wound around a reel installed above the molding die is drawn out, and the heated and molten plastic material in the extrusion passage is passed through the supply passage. The plastic material and the conductor are extruded integrally from the tip of the extrusion passage, and the plastic material is formed into a plate member. In the second step, the plastic material is bent by a cutting machine. Processed plate member and the conductive body and embedded in this cut with 1 operation, characterized in that to obtain a fender main bicycle or method of manufacturing a motorcycle fender.
て主色プラスチック材料およびこの材料と色が異なる副
色プラスチック材料をそれぞれ加熱、溶融させ、主押出
成形機によって前記主色プラスチック材料を成形用型の
押出通路の基端部に設けた主材料入口から前記押出通路
に押し出し、副押出成形機によって、前記副色プラスチ
ック材料を押出通路の中間部に開口する副色材料入口か
ら前記主色プラスチック材料上に押し出して結合させ、
押出通路の先端から色分け分布した板部材に成形して押
し出す第１工程と、前記第２工程とを有したことを特徴
とする、請求項１に記載した自転車または自動二輪車用
フェンダーの製造方法。2. A main extruder and a sub-extruder heat and melt a main color plastic material and a sub-color plastic material having a different color from each other, and the main extruder forms the main color plastic material. The main color inlet is extruded from the main material inlet provided at the base end of the extrusion passage of the mold into the extrusion passage, and the sub-color plastic material is opened from the sub-color material inlet opening at the middle part of the extrusion passage by the sub-extrusion molding machine. Extruded and bonded onto the material,
The method for manufacturing a fender for a bicycle or a motorcycle according to claim 1, further comprising: a first step of forming and extruding a color-distributed plate member from the tip of the extrusion passage and the second step.
スチック材料と色が異なりかつ互いに色が異なる副色プ
ラスチック材料を加熱、溶融させ、前記副色プラスチッ
ク材料を成形用型の押出通路の中間部に開口する副色材
料入口から主色プラスチック材料上に押し出し、規則的
または不規則的な模様に分布させて主色プラスチック材
料と結合させ、前記押出通路の先端から板部材に成形し
て押し出す第１工程と、前記第２工程とを有することを
特徴とする、請求項２に記載の自転車または自動二輪車
用フェンダーの製造方法。3. A plurality of sub-extrusion molding machines heat and melt a sub-color plastic material having a color different from that of the main color plastic material and having a different color from each other, and the sub-color plastic material is interposed in an extrusion passage of a molding die. Extruded onto the main color plastic material from the sub color material inlet opening in the part, distributed in a regular or irregular pattern and combined with the main color plastic material, molded and extruded from the tip of the extrusion passage into a plate member The method for manufacturing a fender for a bicycle or a motorcycle according to claim 2, comprising a first step and the second step.
向の２箇所に所望の間隔で導電体を貫く貫通孔を厚さ方
向に形成し、これらの貫通孔に鳩目状のリベットを嵌挿
してかしめ付け固定し、前記リベットに端子板をねじに
よって締め付け、導電体と端子板とをリベットを介して
それぞれ通電させる第３工程を付加したことを特徴とす
る、請求項１に記載の自転車または自動二輪車用フェン
ダーの製造方法。4. After the second step, through holes are formed in the thickness direction at two desired positions in the longitudinal direction of the fender main body at a desired interval, and eyelets-shaped rivets are inserted into these through holes. The bicycle or the automatic vehicle according to claim 1, further comprising a third step of caulking and fixing, fastening a terminal plate to the rivet with a screw, and energizing the conductor and the terminal plate via the rivet. A method for manufacturing a fender for a motorcycle.
向の２箇所に所望の間隔で導電体を貫く貫通孔を厚さ方
向に形成し、これらの貫通孔に鳩目状のリベットを嵌挿
してかしめ付け固定し、前記リベットに端子板をねじに
よって締め付け、導電体と端子板とをリベットを介して
それぞれ通電させる第３工程を付加したことを特徴とす
る、請求項２又は請求項３に記載の自転車または自動二
輪車用フェンダーの製造方法。5. After the second step, through-holes penetrating through the conductor are formed in the thickness direction at desired intervals at two places in the longitudinal direction of the fender main body, and eyelet-shaped rivets are inserted into these through-holes. 4. The method according to claim 2, further comprising a third step of caulking and fixing, fastening a terminal plate to the rivet with a screw, and energizing the conductor and the terminal plate via the rivet. Of manufacturing fenders for bicycles or motorcycles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8133506A JP2831328B2 (en) | 1996-05-28 | 1996-05-28 | Method of manufacturing fender for bicycle or motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8133506A JP2831328B2 (en) | 1996-05-28 | 1996-05-28 | Method of manufacturing fender for bicycle or motorcycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09314632A JPH09314632A (en) | 1997-12-09 |
| JP2831328B2 true JP2831328B2 (en) | 1998-12-02 |
Family
ID=15106374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8133506A Expired - Fee Related JP2831328B2 (en) | 1996-05-28 | 1996-05-28 | Method of manufacturing fender for bicycle or motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2831328B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019064498A1 (en) * | 2017-09-29 | 2019-04-04 | 本田技研工業株式会社 | Fender structure and saddle-riding type vehicle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6030269A (en) * | 1983-07-29 | 1985-02-15 | Nec Corp | Facsimile equipment |
| JPS6228408U (en) * | 1985-07-31 | 1987-02-20 | ||
| JPS6241459A (en) * | 1985-08-16 | 1987-02-23 | Nissan Motor Co Ltd | Speed shift shock reducing device for automatic speed change gear |
-
1996
- 1996-05-28 JP JP8133506A patent/JP2831328B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09314632A (en) | 1997-12-09 |
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|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980818 |
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