JPH05146861A - Production of wheel for vehicle - Google Patents
Production of wheel for vehicleInfo
- Publication number
- JPH05146861A JPH05146861A JP3337793A JP33779391A JPH05146861A JP H05146861 A JPH05146861 A JP H05146861A JP 3337793 A JP3337793 A JP 3337793A JP 33779391 A JP33779391 A JP 33779391A JP H05146861 A JPH05146861 A JP H05146861A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- mold
- pouring
- cavity
- rim
- 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.)
- Withdrawn
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は車両用ホイールの製造方
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 vehicle wheel manufacturing method.
【０００２】[0002]
【従来の技術】円筒状リムと、該円筒状リムの一方向に
偏位して筒方向の片面に配置される円板状ディスク部か
ら成る車両用ホイールを金型で鋳造する車両用ホイール
の製造方法の一例として図５に示されるような金型を用
いるものが知られている。図中、１００は金型、１０１
は上型、１０２は下型、１０３はキャビティー、１０４
は注湯口、１０５は湯道を示し、前記キャビティー１０
３のうち１０３ａはホイールのリムに対応する部分、１
０３ｂは円板状ディスクに対応する部分を示す。このよ
うな金型１００を用いて車両用ホイールを鋳造するに
は、前記湯道１０５に溶湯を注湯し、この溶湯を注湯口
１０４からキャビティー１０３内に入れ、この溶湯を凝
固させることで行う。ところで溶湯が凝固する際に製品
に引け巣等が生じないように従来より金型１００のリム
１０３ａ円周に沿って複数の押湯部１０６ａ…及び円板
状ディスク１０３ｂの中央にあるホイール取付部に押湯
１０６ｂを夫々設けることが行われている。2. Description of the Related Art A vehicle wheel formed of a cylindrical rim and a disk-shaped disc portion, which is displaced in one direction of the cylindrical rim and is arranged on one side in the cylindrical direction, is cast with a mold. As an example of a manufacturing method, a method using a mold as shown in FIG. 5 is known. In the figure, 100 is a mold, 101
Is an upper mold, 102 is a lower mold, 103 is a cavity, 104
Is a pouring port, 105 is a runner, and the cavity 10
103a of 3 is a portion corresponding to the rim of the wheel, 1
Reference numeral 03b indicates a portion corresponding to the disk. In order to cast a vehicle wheel using such a mold 100, a molten metal is poured into the runner 105, the molten metal is put into the cavity 103 from the pouring port 104, and the molten metal is solidified. To do. By the way, in order to prevent shrinkage cavities or the like in the product when the molten metal solidifies, a plurality of feeders 106a ... And a wheel mounting portion at the center of the disc-shaped disc 103b are arranged along the circumference of the rim 103a of the mold 100. Each of the feeders 106b is provided.
【０００３】[0003]
【発明が解決しようとする課題】しかしながらこのよう
な製造方法では、金型１００のリム１０３ａ円周に沿っ
て複数の押湯部１０６…を設けるので、即ち、円筒状の
リム１０３ａ全周に亙って押湯部１０６…を設けるの
で、押湯の量が多くなり、これに伴い溶湯の凝固する時
間が長くなって車両用ホイールの製造時間が長くなると
いう不具合があった。However, in such a manufacturing method, a plurality of feeders 106 are provided along the circumference of the rim 103a of the mold 100, that is, over the entire circumference of the cylindrical rim 103a. Therefore, since the feeder section 106 is provided, the amount of feeder increases, and accordingly, the time for the molten metal to solidify increases and the manufacturing time of the vehicle wheel also increases.
【０００４】[0004]
【課題を解決するための手段】前記課題を解決するため
本発明は、円筒状リムと、該円筒状リムの筒方向の中心
線と略直交し、円筒状リムの筒方向の一方側に偏位して
結合される円板状ディスク部とから成る車両用ホイール
を一体的に重力鋳造する車両用ホイールの製造方法に於
いて、前記円板状ディスク部が円筒状リムの下方にあ
り、且つ円筒状リムが垂直方向から傾斜した状態で、前
記円筒状リムの円板状ディスク部の結合部近傍に設けた
注湯口から注湯して車両用ホイールを重力鋳造するよう
にしたことを特徴とする。In order to solve the above problems, the present invention is directed to a cylindrical rim and a cylinder rim that is substantially orthogonal to the center line of the cylindrical rim in the cylinder direction and is biased to one side of the cylinder rim in the cylinder direction. In a method for manufacturing a vehicle wheel integrally gravity-casting a vehicle wheel composed of a disc-shaped disc portion that is coupled in a position, the disc-shaped disc portion is below a cylindrical rim, and In a state where the cylindrical rim is inclined from the vertical direction, the vehicle wheel is gravity cast by pouring from a pouring port provided in the vicinity of the coupling portion of the disc-shaped disc portion of the cylindrical rim. To do.
【０００５】[0005]
【作用】円板状リムが垂直から傾斜した状態で前記円筒
状リムの円板状ディスク部の結合部近傍に設けた注湯口
から注湯するので、溶湯は注湯口からディスク部を経由
して順次リムに充填され、下方のリムから上方、即ち、
押湯部側へ向かって凝固していき、最後に押湯部側で凝
固する。よって押湯部を必要最小限のものとし、その補
給溶湯の量を少なくし、凝固時間を短縮することができ
る。[Function] Since the disc-shaped rim is inclined from the vertical, the pouring is performed from the pouring port provided in the vicinity of the coupling portion of the disc-shaped disc portion of the cylindrical rim. The rims are sequentially filled, and from the lower rim to the upper, that is,
It solidifies toward the feeder part, and finally it solidifies on the feeder part side. Therefore, the feeder unit can be minimized, the amount of the supplementary molten metal can be reduced, and the solidification time can be shortened.
【０００６】[0006]
【実施例】以下に本発明の好適一実施例を添付図面に基
づいて説明する。図１は車両用ホイール鋳造用の金型の
側面図を示し、図中、１は金型、２は下型、３は上型、
４は横型を示し、この金型１は支点５を中心に回転自在
に構成されており、通常の状態では想像線に示すように
水平であるが、実線で示すように垂直の状態まで回転可
能になっている。前記下型２、上型３、横型４の間には
車両用ホイールを形成するためのキャビティー７が形成
され、図中、７ａはキャビティー７のうち車両用ホイー
ルのリムに対応する円筒状の部分、７ｂは車両用ホイー
ルの円板状ディスクに対応する板状の部分を示す。前記
横型４には注湯口９、押湯部１０を夫々一つずつ形成
し、注湯口９はリム部７ａのディスク部７ｂ近傍に設
け、押湯部１０は注湯口９よりもリム部７ａの開放側に
配置する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view of a vehicle wheel casting mold, in which 1 is a mold, 2 is a lower mold, 3 is an upper mold,
Reference numeral 4 denotes a horizontal mold, and the mold 1 is configured to be rotatable around a fulcrum 5, and in a normal state is horizontal as shown by an imaginary line, but can be rotated up to a vertical state as shown by a solid line. It has become. A cavity 7 for forming a vehicle wheel is formed between the lower mold 2, the upper mold 3, and the horizontal mold 4. In the figure, 7a is a cylindrical shape corresponding to the rim of the vehicle wheel. 7b indicates a plate-shaped portion corresponding to the disk-shaped disc of the vehicle wheel. The horizontal mold 4 is provided with one pouring port 9 and one pouring unit 10, and the pouring port 9 is provided in the vicinity of the disc section 7b of the rim section 7a. Place on the open side.
【０００７】以上のような金型を用いて車両用ホイール
を鋳造するには次のようにして行う。先ず、金型１を水
平の状態即ち、図１の想像線の状態にしておき、金型１
を図１のＡ方向に回転させながら溶湯を注湯口９からキ
ャビティー７内に注湯していく。注湯口９からキャビテ
ィー７内に流入した溶湯は図２のイ、ロ、ハ、ニ、ホに
示すように傾いたキャビティー７の底の方から順次溜ま
っていき、凝固し始める。そして最後に押湯部１０の近
傍に溶湯が充填され、注湯口９からの注湯が終わり、押
湯部１０近傍の溶湯が凝固する。Casting a vehicle wheel using the above-mentioned mold is performed as follows. First, the mold 1 is placed in a horizontal state, that is, the state of the imaginary line in FIG.
While rotating in the direction of A in FIG. 1, the molten metal is poured into the cavity 7 from the pouring port 9. The molten metal that has flowed into the cavity 7 from the pouring port 9 sequentially accumulates from the bottom of the inclined cavity 7 as shown in FIGS. 2A, 2B, 2C, 2D, and 3E, and begins to solidify. Finally, the molten metal is filled in the vicinity of the feeder 10 to finish pouring from the pouring port 9, and the molten metal in the vicinity of the feeder 10 is solidified.
【０００８】以上に於いて、本実施例によれば、最後に
溶湯が押湯部１０近傍で凝固するので、押湯部１０の量
を少なくすることができ、型内流入溶湯量も少なくなる
ので、型温の上昇も抑えられ、溶湯の凝固時間を短縮す
ることが可能になる。又、注湯口９からキャビティー７
内に流入した溶湯はキャビティー７の底の方から順次溜
まっていくので、金型１内の空気と溶湯とのスムースな
置換が可能になる。従って図５で示した円板状ディスク
１０３ｂの中央にあるホイール取付部の押湯１０６ｂを
廃止することができる。又この際、キャビティー７の底
の方に流れる溶湯はこれよりも上の溶湯よりも流路が長
く、温度低下が大きいために溶湯の指向性凝固が可能に
なる。In the above, according to this embodiment, since the molten metal is finally solidified in the vicinity of the feeder portion 10, the amount of the feeder portion 10 can be reduced and the amount of molten metal flowing into the mold is also reduced. Therefore, the rise of the mold temperature can be suppressed, and the solidification time of the molten metal can be shortened. Also, from the pouring port 9 to the cavity 7
Since the molten metal that has flowed into the chamber is accumulated from the bottom of the cavity 7 in sequence, the air in the mold 1 and the molten metal can be smoothly replaced. Therefore, it is possible to eliminate the riser 106b of the wheel mounting portion in the center of the disk 103b shown in FIG. Further, at this time, since the molten metal flowing toward the bottom of the cavity 7 has a longer flow path than the molten metal above this and the temperature drop is large, directional solidification of the molten metal is possible.
【０００９】図３は別実施例を示し、この実施例では、
最初に金型１を水平から下方へ２０度傾け、金型１を回
転させながら溶湯を注湯し、最終的には金型１を垂直の
状態になるようにした。このような方法によればホイー
ルの形状が複雑な場合の溶湯の充填をスムースに行うこ
とができる。図４は更なる別実施例を示し、この実施例
では金型１を水平に対して３０度から７５度の範囲で傾
斜させて固定し、静かに溶湯を注湯する。この実施例で
は金型の角度が４５度から７０度の範囲で行ったものが
もっとも良好な製品が得られた。FIG. 3 shows another embodiment. In this embodiment,
First, the mold 1 was tilted downward from the horizontal by 20 degrees, the molten metal was poured while rotating the mold 1, and finally the mold 1 was set in a vertical state. According to such a method, it is possible to smoothly fill the molten metal when the shape of the wheel is complicated. FIG. 4 shows still another embodiment. In this embodiment, the mold 1 is tilted and fixed with respect to the horizontal in the range of 30 to 75 degrees, and the molten metal is gently poured. In this example, the best product was obtained when the mold angle was in the range of 45 to 70 degrees.
【００１０】[0010]
【発明の効果】以上述べたように本発明によれば、円板
状リムが垂直から傾斜した状態で前記円筒状リムの円板
状ディスク部の結合部近傍に設けた注湯口から注湯する
ので、溶湯は注湯口からディスク部を経由して順次リム
に充填され、下方のリムから上方、即ち、押湯部側へ向
かって凝固していき、最後に押湯部側で凝固する。よっ
て押湯部を必要最小限のものとし、その補給溶湯の量を
少なくし、凝固時間を短縮することができる。As described above, according to the present invention, pouring is performed from the pouring port provided in the vicinity of the coupling portion of the disc-shaped disc portion of the cylindrical rim with the disc-shaped rim inclined from the vertical. Therefore, the molten metal is sequentially filled from the pouring port to the rim through the disc portion, solidifies from the lower rim toward the upper part, that is, toward the feeder part, and finally at the feeder part side. Therefore, the feeder unit can be minimized, the amount of the supplementary molten metal can be reduced, and the solidification time can be shortened.
【図１】金型の側面図1] Side view of mold
【図２】溶湯の注入状態を示す金型の側面図FIG. 2 is a side view of a mold showing a molten metal injection state.
【図３】別実施例にかかる金型の側面図FIG. 3 is a side view of a mold according to another embodiment.
【図４】更なる別実施例にかかる金型の側面図FIG. 4 is a side view of a mold according to still another embodiment.
【図５】従来に於ける金型の側面図FIG. 5: Side view of a conventional mold
１…金型、７…車両用ホイール、７ａ…円筒状リム、７
ｂ円板状ディスク部、９…注湯口、１０…押湯部。DESCRIPTION OF SYMBOLS 1 ... Mold, 7 ... Vehicle wheel, 7a ... Cylindrical rim, 7
b disk-shaped disc portion, 9 ... pouring port, 10 ... feeder portion.
Claims (1)
中心線と略直交し、円筒状リムの筒方向の一方側に偏位
して結合される円板状ディスク部とから成る車両用ホイ
ールを一体的に重力鋳造する車両用ホイールの製造方法
に於いて、前記円板状ディスク部が円筒状リムの下方に
あり、且つ円筒状リムが垂直方向から傾斜した状態で、
前記円筒状リムの円板状ディスク部との結合部近傍に設
けた注湯口から注湯して車両用ホイールを重力鋳造する
ようにしたことを特徴とする車両用ホイールの製造方
法。1. A cylindrical rim, and a disc-shaped disc portion that is substantially orthogonal to a center line of the cylindrical rim in the cylinder direction and is offset and coupled to one side of the cylindrical rim in the cylinder direction. In a method of manufacturing a vehicle wheel in which a vehicle wheel is integrally gravity-cast, the disc-shaped disc portion is below a cylindrical rim, and the cylindrical rim is inclined from a vertical direction,
A method for manufacturing a vehicle wheel, characterized in that the vehicle wheel is gravity-cast by pouring from a pouring port provided in the vicinity of a coupling portion of the cylindrical rim with the disc-shaped disc portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3337793A JPH05146861A (en) | 1991-11-27 | 1991-11-27 | Production of wheel for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3337793A JPH05146861A (en) | 1991-11-27 | 1991-11-27 | Production of wheel for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05146861A true JPH05146861A (en) | 1993-06-15 |
Family
ID=18312022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3337793A Withdrawn JPH05146861A (en) | 1991-11-27 | 1991-11-27 | Production of wheel for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05146861A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5704413A (en) * | 1993-11-30 | 1998-01-06 | Honda Giken Kogyo Kabushiki Kaisha | Rotary-mold gravity casting process |
| US9427803B2 (en) | 2004-09-01 | 2016-08-30 | Commonwealth Scientific And Industrial Research Organisation | Alloy casting apparatus |
-
1991
- 1991-11-27 JP JP3337793A patent/JPH05146861A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5704413A (en) * | 1993-11-30 | 1998-01-06 | Honda Giken Kogyo Kabushiki Kaisha | Rotary-mold gravity casting process |
| US9427803B2 (en) | 2004-09-01 | 2016-08-30 | Commonwealth Scientific And Industrial Research Organisation | Alloy casting apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990204 |