JPH07118988B2 - Wheel manufacturing equipment - Google Patents
Wheel manufacturing equipmentInfo
- Publication number
- JPH07118988B2 JPH07118988B2 JP1061221A JP6122189A JPH07118988B2 JP H07118988 B2 JPH07118988 B2 JP H07118988B2 JP 1061221 A JP1061221 A JP 1061221A JP 6122189 A JP6122189 A JP 6122189A JP H07118988 B2 JPH07118988 B2 JP H07118988B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- tire
- rubber
- wheel
- 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.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000000465 moulding Methods 0.000 claims description 35
- 238000001816 cooling Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000005304 joining Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Tyre Moulding (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は、リムにゴムタイヤを一体成形した車輪を製
造する装置に関するものである。TECHNICAL FIELD The present invention relates to an apparatus for manufacturing a wheel in which a rubber tire is integrally molded on a rim.
（従来技術とその問題点） 従来、特開昭63−260408号公報に示すようなリムの周り
にタイヤを一体成形した車輪の製造方法が開示されてい
るか、該従来技術のものは、タイヤ片を成形するときに
金型の温度を約120℃〜170℃に加熱するものであるため
に、リムに接着させるタイヤの内面も加硫してしまい、
次工程でリムにタイヤ片を一体成形するときリムにタイ
ヤ片を適確に接着させることができないものであった。
従って、この従来例にて製造された車輪は、使用してい
るとリムとタイヤとがずれてきて本来の走行性能を発揮
できず、最悪の場合では、タイヤ部が破損するという問
題点があった。(Prior art and its problems) Conventionally, there is disclosed a method for manufacturing a wheel in which a tire is integrally molded around a rim as disclosed in JP-A-63-260408. Since the temperature of the mold is heated to about 120 ° C to 170 ° C when molding, the inner surface of the tire to be adhered to the rim is also vulcanized,
When the tire piece was integrally molded with the rim in the next step, the tire piece could not be properly adhered to the rim.
Therefore, the wheel manufactured in this conventional example has a problem that the rim and the tire deviate from each other when used and the original running performance cannot be exhibited, and in the worst case, the tire portion is damaged. It was
（問題点を解決する手段） この発明は、前記の問題点を解消するために、プレス成
形装置１に取り付けた外型11・12と移動自在な中子型20
とを備え、該外型11・12と中子型20とでそれらの間に挟
んだタイヤ片130・130を成形し、該成形されたタイヤ片
130・130の間にリム107を挟んでタイヤ片130・130を接
合して一体に成形加硫するする車輪製造装置であって、
前記外型11・12を生ゴムが短時間で加硫する温度に加熱
する加熱手段を設けるとともに、前記中子型20を生ゴム
が短時間では殆ど加硫しない温度に調節する調温手段を
設け、該調温手段に加熱手段と冷却手段とを装備したこ
とを特徴とする車輪の製造装置としたものである。(Means for Solving Problems) In order to solve the above-mentioned problems, the present invention relates to outer molds 11 and 12 attached to the press molding apparatus 1 and a movable core mold 20.
And molding a tire piece 130, 130 sandwiched between the outer mold 11 and 12 and the core mold 20, and the molded tire piece.
A wheel manufacturing apparatus for sandwiching a rim 107 between 130 and 130 to join tire pieces 130 and 130 and integrally molding and vulcanizing,
A heating means for heating the outer molds 11 and 12 to a temperature at which the raw rubber is vulcanized in a short time is provided, and a temperature adjusting means for adjusting the core mold 20 to a temperature at which the raw rubber is hardly vulcanized in a short time is provided. The wheel manufacturing apparatus is characterized in that the temperature adjusting means is equipped with a heating means and a cooling means.
（発明の作用および効果） この発明の車輪を製造装置によると、タイヤ片130・130
のリム107に接着する面123′・123′は生ゴムを短時間
では殆ど加硫しない温度に調節された中子型20にて成形
されるので、次工程でリム107にタイヤ片130・130を一
体成形するときに、タイヤ片130・130はリム107に適確
に接着する。また、外型11・12は生ゴムを短時間で加硫
する温度に加熱されているので、タイヤ片130・130を成
形する工程でタイヤ外面の表面は既に加硫が進んでお
り、次工程のタイヤ片130・130を一体成形するときの加
硫時間が短くなり、車輪の製造効率が良く安価な車輪を
得ることができる。(Operation and Effect of the Invention) According to the wheel manufacturing apparatus of the present invention, the tire piece 130
The surfaces 123 ′ and 123 ′ that are adhered to the rim 107 are molded by the core mold 20 adjusted to a temperature at which the raw rubber is hardly vulcanized in a short time, so the tire pieces 130 and 130 are attached to the rim 107 in the next step. When integrally molded, the tire pieces 130 and 130 are properly adhered to the rim 107. Further, since the outer molds 11 and 12 are heated to a temperature at which the raw rubber is vulcanized in a short time, the surface of the tire outer surface has already been vulcanized in the step of molding the tire pieces 130 and 130, and the next step The vulcanization time when integrally molding the tire pieces 130 and 130 is shortened, and the wheel manufacturing efficiency is high and an inexpensive wheel can be obtained.
また、中子型20を生ゴムが短時間では殆ど加硫しない温
度に調節する調温手段に加熱手段と冷却手段とを装備し
たので、中子型20の温度調節が迅速に行なえてタイヤ成
形の能率が向上し、製造コストの低減が図れる。Further, since the temperature control means for adjusting the core mold 20 to a temperature at which the raw rubber is hardly vulcanized in a short time is equipped with the heating means and the cooling means, the temperature of the core mold 20 can be quickly adjusted for tire molding. The efficiency is improved and the manufacturing cost can be reduced.
（実施例） この発明の一実施例である車輪の製造装置を図面に基づ
き詳細に説明する。(Embodiment) A wheel manufacturing apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.
先ず、車輪をプレス成形する油圧式プレス成形装置１に
ついて説明する。２は床面に設けられた台座３と上部フ
レーム４との四隅に円柱フレーム５…を固設して構成さ
れた機枠である。６は四隅に貫通孔７…を有する上下動
枠体であって、上記円柱フレーム５…が該貫通孔７…を
貫通した状態で装着されている。８は上下動枠体６を円
柱フレーム５…に沿って上下動させる油圧装置であっ
て、その油圧ピストン９の上部が上下動枠体６の下面に
固設されている。10・10は上下動枠体６の上面に固設さ
れた左右レールであって、車輪成形用の下型11がイーロ
方向に移動できるようにその上に載置されている。12は
車輪成形用の上型であって、上部フレーム４の下面にボ
ルトにて固設されている。First, the hydraulic press-molding apparatus 1 for press-molding a wheel will be described. Reference numeral 2 is a machine frame configured by fixedly mounting cylindrical frames 5 ... At four corners of a pedestal 3 and an upper frame 4 provided on the floor surface. Reference numeral 6 denotes an up-and-down moving frame body having through holes 7 at its four corners, and the columnar frames 5 are mounted in such a state that they penetrate the through holes 7. Reference numeral 8 denotes a hydraulic device for moving the vertical moving frame 6 up and down along the columnar frame 5, ..., The upper part of the hydraulic piston 9 thereof is fixed to the lower surface of the vertical moving frame 6. Reference numerals 10 and 10 denote left and right rails fixed to the upper surface of the vertically movable frame body 6, on which a lower die 11 for wheel molding is mounted so as to be movable in the ERO direction. An upper die 12 for wheel molding is fixed to the lower surface of the upper frame 4 with bolts.
13a・13bは温度が140〜200℃で圧力が12kg/cm2の水蒸気
を下型11と上型12の内部に供給する屈曲自在のパイプで
あって、下型11と上型12とはその温度が生ゴムを短時間
で加硫する温度140〜200℃に保たれている。13a and 13b are bendable pipes for supplying water vapor having a temperature of 140 to 200 ° C. and a pressure of 12 kg / cm 2 into the lower mold 11 and the upper mold 12, and the lower mold 11 and the upper mold 12 are The temperature is maintained at 140-200 ℃, which is the temperature for vulcanizing raw rubber in a short time.
14は左右レール10・10の下側の床面に設置された調温庫
であって、内部に温度センサーの検出にて作動する電熱
ヒーター15と冷却装置16とが設けられており、内部の温
度は常に70℃〜110℃に保たれている。17・17は調温庫1
4内部と外部とに渡って設けられた左右レールであっ
て、その上部には把持部18を有する移動台19がレールに
沿って移動できるように載置されている。そして、作業
者が移動台19の上面に中子型20を載置した状態で、把持
部18を持って移動台19を左右レール17・17に沿って移動
させ、調温庫14の入口21より調温庫14内に移動台19と共
に中子型20を収納できるようになっている。22は上下方
向に抜き挿しすることにより調温庫14の入口を開閉する
蓋体（戸）である。然して、調温庫14は、中子型20をそ
の内部に収納し、電熱ヒーター15と冷却装置16との働き
により、生ゴムが成形可能で短時間では加硫しない温度
70℃〜110℃に中子型20を温度調節するように構成され
ている。14 is a temperature control cabinet installed on the floor below the left and right rails 10 ・ 10, and an electric heater 15 and a cooling device 16 that operate by the detection of a temperature sensor are provided inside the interior. The temperature is always kept at 70 ℃ -110 ℃. 17 ・ 17 is temperature control box 1
4 The left and right rails are provided both inside and outside, and a moving table 19 having a grip portion 18 is mounted on the upper part of the left and right rails so as to be movable along the rails. Then, with the operator placing the core mold 20 on the upper surface of the moving table 19, the operator moves the moving table 19 along the left and right rails 17 and 17 by holding the grip portion 18, and the entrance 21 of the temperature control box 14 The core mold 20 can be housed together with the moving table 19 in the temperature control box 14. Reference numeral 22 is a lid (door) that opens and closes the inlet of the temperature control cabinet 14 by inserting and removing in the vertical direction. However, in the temperature control chamber 14, the core mold 20 is housed inside, and by the action of the electric heater 15 and the cooling device 16, the raw rubber can be molded and the temperature at which it does not vulcanize in a short time.
It is configured to control the temperature of the core mold 20 at 70 ° C to 110 ° C.
23は屈曲自在のパイプ24の先端に装着されたノズルであ
って、その先端より温度が140〜200℃で圧力が12kg/cm2
の水蒸気を噴出できるように構成している。尚、パイプ
24の基部にはバルブ24′が設けられており、ノズル23の
先端より水蒸気を噴出する状態と水蒸気を遮断してパイ
プ24内を大気に開放する状態とに切り替えられるように
構成している。Reference numeral 23 is a nozzle attached to the tip of a bendable pipe 24, and the temperature is 140 to 200 ° C and the pressure is 12 kg / cm 2 from the tip.
It is configured to be able to eject the steam of. The pipe
A valve 24 'is provided at the base of 24 to switch between a state in which water vapor is ejected from the tip of the nozzle 23 and a state in which the water vapor is blocked and the pipe 24 is opened to the atmosphere.
ここで、下型11につき詳しく説明する。Here, the lower mold 11 will be described in detail.
下型11は、台部11aと型部11bとをボルト11c…にて固定
して構成されている。The lower die 11 is configured by fixing a base portion 11a and a die portion 11b with bolts 11c ...
25は型部11bの上面に彫り込まれた型であって、後述の
車輪100のタイヤ胴部101を成形する部分26とラグ102を
成形する部分27…とスポーク被覆部103…を成形する部
分28等のゴムタイヤの外形が彫られており、その表面は
ざらざらした粗雑面に形成されている。Reference numeral 25 denotes a mold carved on the upper surface of the mold portion 11b, and a portion 26 for molding a tire body 101 of a wheel 100, a portion 27 for molding a lug 102, and a portion 28 for molding a spoke covering portion 103, which will be described later. The outer shape of the rubber tire is carved, and the surface thereof is formed into a rough surface.
29は後述の車輪100のボス104の孔部105を貫通する支持
ピンであり、台部11aの上面中央部に固設されている。3
0は後述の車輪100のスポーク106を支持するスポーク支
持部であり、型部11bの上面に３カ所設けられている。
然して、支持ピン29と３カ所のスポーク支持部30…に
て、車輪100のリム107が型部25の所定位置に位置決めで
きるように構成している。尚、スポーク支持部30の中央
部には、上下に移動自在の移動支持体30aが設けられて
おり、バネ30bにて上動方向に付勢されている。Reference numeral 29 is a support pin that penetrates a hole portion 105 of a boss 104 of the wheel 100, which will be described later, and is fixed to the center of the upper surface of the base portion 11a. 3
Reference numeral 0 denotes a spoke support portion that supports a spoke 106 of a wheel 100, which will be described later, and is provided at three places on the upper surface of the mold portion 11b.
However, the rim 107 of the wheel 100 can be positioned at a predetermined position of the mold portion 25 by the support pin 29 and the three spoke support portions 30 ... A movable support 30a that is vertically movable is provided at the center of the spoke support 30, and is urged in the upward direction by a spring 30b.
31…は型部11bのラグ102を成形する部分27の底に穿設さ
れた吸引部としての貫通孔である。32は台部11aの上面
と側面とに渡って穿設された貫通孔であり、その側面側
部分にはパイプ33が設けられている。34・34はシールで
あって、上記貫通孔31…と32との孔口を挾んで台部11a
の上面に彫られた円溝に設けられている。然して、パイ
プ33を真空ポンプに連結して、シール34・34間を真空状
態とし、型25に生ゴムを載せてプレス成形するときに貫
通孔31…を負圧としラグ102を成形する部分27の底隅部
までゴムがいきわたるようになっている。35は型25の外
周部に設けられた穴であって、型25に生ゴムを載せてプ
レス成形するときに型外周隅部までゴムがいきわたるよ
うに設けられている。Denoted at 31 are through-holes as suction portions formed in the bottom of the portion 27 of the mold portion 11b for molding the lug 102. Reference numeral 32 is a through hole formed on the upper surface and the side surface of the base 11a, and the pipe 33 is provided on the side surface side portion thereof. 34, 34 is a seal, and the base 11a is sandwiched between the through holes 31 ... and 32.
It is provided in the circular groove carved on the upper surface of. However, the pipe 33 is connected to a vacuum pump, a vacuum state is created between the seals 34, 34, and when the raw rubber is placed on the mold 25 and press-molded, the through holes 31 ... The rubber is spread all the way to the bottom corner. Reference numeral 35 denotes a hole provided in the outer peripheral portion of the mold 25, which is provided so that the rubber reaches the outer peripheral corners of the mold when the raw rubber is placed on the mold 25 and press-molded.
50…は型25の底面に設けられた細いピンであって、型25
に生ゴムを載せてたとき生ゴムにつき刺さり生ゴムがず
れるのを防止する。50 ... is a thin pin provided on the bottom surface of the mold 25.
When the raw rubber is placed on, the raw rubber is prevented from sticking and slipping.
36は台部11aの内部に設けられた孔であって、前記温度
が140〜200℃で圧力が12kg/cm2の水蒸気を供給する屈曲
自在のパイプ13aがその孔入口36aに連結されており、孔
36内にその水蒸気が導入され、孔出口36bより屈曲自在
のパイプ13a′を通って排出され、下型11はその温度が
生ゴムを加硫する140〜200℃に保たれている。Reference numeral 36 denotes a hole provided inside the base 11a, and a bendable pipe 13a for supplying water vapor having a temperature of 140 to 200 ° C. and a pressure of 12 kg / cm 2 is connected to the hole inlet 36a. , Hole
The water vapor is introduced into the pipe 36 and is discharged from the hole outlet 36b through the bendable pipe 13a ', and the temperature of the lower mold 11 is maintained at 140 to 200 ° C for vulcanizing the raw rubber.
37a…は下型11の四隅に設けられた穴であり、後述の上
型12に設けられた位置あわせ嵌合ピン38…が嵌入するよ
うに設けられている。37bは下型11に設けられた貫通孔
であり、後述の中子型20に設けられた位置あわせ嵌合ピ
ン43…が嵌入するように設けられている。Numerals 37a are holes provided at the four corners of the lower mold 11, and are provided so that the positioning fitting pins 38, which are provided in the upper mold 12, which will be described later, can be fitted therein. 37b is a through hole provided in the lower die 11, and is provided so that the positioning fitting pins 43 ... Provided in the core die 20 described later can be fitted therein.
39は前記先端より温度が140〜200℃で圧力が12kg/cm2の
水蒸気を噴出するノズル23をセットする台であり、その
上面にはノズル23の筒部23aを嵌入する縦溝39aとノズル
23の鍔部23bを嵌入す横溝39bとノズル23の噴出管23cを
嵌入する縦溝39cが設けられている。40は型部11b上面に
設けられたノズル23の噴出管23cを嵌め込む溝である。Reference numeral 39 denotes a table on which a nozzle 23 for ejecting water vapor having a temperature of 140 to 200 ° C. and a pressure of 12 kg / cm 2 from the tip is set, and a vertical groove 39a and a nozzle for inserting a tubular portion 23a of the nozzle 23 on the upper surface thereof.
A lateral groove 39b into which the collar portion 23b of 23 is fitted and a vertical groove 39c into which the ejection pipe 23c of the nozzle 23 is fitted are provided. Reference numeral 40 is a groove for fitting the ejection pipe 23c of the nozzle 23 provided on the upper surface of the mold 11b.
次に、上型12につき詳しく説明する。Next, the upper mold 12 will be described in detail.
上型12は、台部12aと型部12bとをボルト12c…にて固定
して構成されている。The upper die 12 is configured by fixing the base portion 12a and the die portion 12b with bolts 12c.
25′は型部12bの下面に彫り込まれた型であって、後述
の車輪100のタイヤ胴部101を成形する部分26′とラグ10
2を成形する部分27′とスポック被覆部103を成形する部
分28′等が彫られており、その表面はざらざらした粗雑
面に形成されている。Reference numeral 25 'denotes a mold carved on the lower surface of the mold portion 12b, which includes a portion 26' for molding a tire body portion 101 of a wheel 100, which will be described later, and a lug 10.
A portion 27 'for molding 2 and a portion 28' for molding the spock covering portion 103 are carved, and the surface thereof is formed into a rough surface.
41は前記支持ピン29の先端が嵌入する穴であり、台部12
aの下面中央部に設けられている。41 is a hole into which the tip of the support pin 29 is fitted, and the base 12
It is provided in the center of the lower surface of a.
31′…は型部12bのラグ102を成形する部分27′の底に穿
設された吸引部としての貫通孔である。32′は台部12a
の上面と側面とに渡って穿設された貫通孔であり、その
側面側部分にはパイプ33′が設けられている。34′・3
4′はシールであって、上記貫通孔31′…と32′との孔
口を挾んで台部12aの下面に彫られた円溝に設けられて
いる。然して、パイプ33′を真空ポンプに連結して、シ
ール34′・34′間の真空状態とし、型25′に生ゴムを入
れてプレス成形するときに貫通孔31′…を負圧としラグ
102を成形する部分27′の底隅部までゴムがいきわたる
ようになっている。Designated by 31 '... are through-holes as suction portions formed in the bottom of a portion 27' of the mold portion 12b for molding the lug 102. 32 'is the base 12a
Is a through hole formed in the upper surface and the side surface of the, and a pipe 33 'is provided in the side surface side portion. 34 ′ ・ 3
Reference numeral 4'denotes a seal, which is provided in a circular groove engraved on the lower surface of the base 12a with the openings of the through holes 31 '... and 32' interposed therebetween. However, the pipe 33 'is connected to a vacuum pump so that a vacuum is created between the seals 34' and 34 ', and when the raw rubber is put into the mold 25' for press molding, the through hole 31 '...
The rubber extends to the bottom corner of the portion 27 'where 102 is molded.
35′は型41の外周部に設けられた穴であって、型25′に
生ゴムを入れてプレス成形するときに型外周隅部までゴ
ムがいきわたるように設けられている。Reference numeral 35 'is a hole provided in the outer peripheral portion of the mold 41, and is provided so that the rubber reaches the outer peripheral corners of the mold when the raw rubber is put into the mold 25' and press-molded.
36′は台部12aの内部に設けられた孔であって、前記温
度が140〜200℃で圧力が12kg/cm2の水蒸気を供給する屈
曲自在のパイプ13bがその孔入口36a′に連結されてお
り、孔36′内にその水蒸気が導入され、孔出口36b′よ
り屈曲自在のパイプ13b′を通って排出され、上型12は
その温度が生ゴムを加硫する140〜200℃に保たれてい
る。Reference numeral 36 'denotes a hole provided inside the base portion 12a, and a bendable pipe 13b for supplying water vapor having a temperature of 140 to 200 ° C and a pressure of 12 kg / cm 2 is connected to the hole inlet 36a'. The steam is introduced into the hole 36 'and discharged from the hole outlet 36b' through the bendable pipe 13b ', and the temperature of the upper mold 12 is kept at 140 to 200 ° C for vulcanizing the raw rubber. ing.
38…は上型12の四隅に設けられた嵌合ピンであり、後述
の中子型20の四隅に設けられた貫通孔42…を貫通し、前
記下型11の穴37aに嵌入するように設けられている。Denoted at 38 are fitting pins provided at the four corners of the upper die 12, so as to pass through through holes 42 provided at the four corners of the core die 20 described later and fit into the holes 37a of the lower die 11. It is provided.
39′はノズル23をセットする台39に対向して設けられた
押さえ台である。ノズル23は、プレス成形時に台39と押
さえ台39′とにより保持され、その噴出管23c先端は型2
5と25′とにより形成される空間部に突出して位置す
る。Reference numeral 39 'is a pressing base provided opposite to the base 39 on which the nozzle 23 is set. The nozzle 23 is held by a table 39 and a pressing table 39 'during press molding, and the tip of the ejection pipe 23c has a mold 2
It is located so as to project in the space formed by 5 and 25 '.
30′は前記下型11のスポーク支持部30と共同してスポー
ク106を支持するスポーク支持部であり、型部12bの下面
に３カ所設けられている。尚、スポーク支持部30′の中
央部には、上下に移動自在の移動支持体30a′が設けら
れており、バネ30b′にて下動方向に付勢されている。Reference numeral 30 'denotes a spoke support portion that supports the spoke 106 in cooperation with the spoke support portion 30 of the lower die 11, and is provided at three places on the lower surface of the die portion 12b. A movable support 30a 'that is vertically movable is provided at the center of the spoke support 30', and is urged downward by a spring 30b '.
次に、中子型20について説明すると、その上面及び下面
には、後述の車輪100のタイヤ胴部101の中空部108を成
形する部分45と、下型11と上型12のラグ102を成形する
部分27・27′にプレス成形するときゴムが底隅部までい
きわたるようにゴムを該27・27′内に押す突起部46…
（該突起部46…にて押されてできるラグ102…内部の空
洞部108′…は、前記中空部108と連通して形成され
る。）と、車輪100のリム107が入る空洞部123を成形す
る部分47（部分47の突出量をL1とすると、空洞部124の
半径もL1となるが、該空洞部123の半径L1はリム107の半
径L2よりも小さくなるように設定されている。）と、車
輪100のスポーク106が入る空洞部を成形する部分48…
と、下型11と上型12とで形成される２つの半割状のタイ
ヤ片130・130の外周部と内周部が接合する接合代E1・E2
を成形する環状溝部分60・61とよりなる型44・44が彫ら
れている。そして、型44・44の表面は、シリコン焼付け
処理（または、フッ素コーティング処理）がされてお
り、成形後のゴムが容易に離れるようになっている。Next, the core mold 20 will be described. On its upper and lower surfaces, a part 45 for molding the hollow part 108 of the tire body 101 of the wheel 100, which will be described later, and a lug 102 for the lower mold 11 and the upper mold 12 are molded. The protrusions 46 that push the rubber into the 27.27 'so that the rubber spreads to the bottom corners when press-molding the portion 27.27'.
(The cavity 108 ′ inside the lug 102, which is formed by being pushed by the protrusion 46, is formed so as to communicate with the cavity 108.) and the cavity 123 into which the rim 107 of the wheel 100 is inserted. If the amount of protrusion of the molded parts 47 (parts 47 and L 1, but also the radius of the cavity 124 becomes L 1, the radius L 1 of the cavity portion 123 is set to be smaller than the radius L 2 of the rim 107 And a portion 48 forming a cavity for receiving the spokes 106 of the wheel 100.
And a joining margin E 1 · E 2 at which the outer peripheral portion and the inner peripheral portion of the two half-divided tire pieces 130, 130 formed by the lower mold 11 and the upper mold 12 are joined.
Molds 44 and 44 composed of annular groove portions 60 and 61 for molding are carved. The surfaces of the molds 44, 44 are subjected to a silicon baking treatment (or a fluorine coating treatment) so that the rubber after molding can be easily separated.
51…は型44の上面に設けられた細いピンであって、型44
に生ゴムを載せてたとき生ゴムにつき刺さり生ゴムがず
れるのを防止する。51 ... is a thin pin provided on the upper surface of the mold 44.
When the raw rubber is placed on, the raw rubber is prevented from sticking and slipping.
42…は上型12の嵌合ピン38…が貫通する貫通孔、43…は
下型11に設けられた貫通孔37b…に嵌入する位置あわせ
用の嵌合ピンである。49・49は中子型20を下型11から外
して吊り上げるときにリフト装置のワイヤ等を掛ける左
右吊持部である。42 are through holes through which the fitting pins 38 of the upper mold 12 pass, and 43 are positioning pins fitted into the through holes 37b provided in the lower mold 11. Reference numerals 49, 49 are left and right suspension parts for hanging wires of the lift device when the core mold 20 is removed from the lower mold 11 and lifted.
次に、上記生ゴムを短時間で加硫する温度140〜200℃に
加熱された下型11・上型12と生ゴムが成形可能で短時間
では加硫しない温度70〜110℃に調温された中子型20を
有する油圧式プレス成形装置１を用いて、車輪100を成
形する方法について説明する。Next, the lower mold 11 and the upper mold 12 heated to a temperature of 140 to 200 ° C for vulcanizing the raw rubber in a short time and the raw rubber can be molded, and the temperature was adjusted to 70 to 110 ° C at which the raw rubber was not vulcanized in a short time. A method of molding the wheel 100 using the hydraulic press molding apparatus 1 having the core mold 20 will be described.
先ず、車輪に車輪を装着するための鉄製円管状のボス10
4と鉄パイプよりなる円環状リム107とを３本の鉄パイプ
よりなるスポーク106…とを溶接連結した車輪本体110を
用意する。尚、ボス104とスポーク106…とは補強鉄板10
9にて補強連結されている。First, an iron circular tubular boss 10 for mounting the wheel on the wheel.
A wheel body 110 is prepared by welding and connecting 4 and an annular rim 107 made of an iron pipe to the spokes 106 made of three iron pipes. The boss 104 and the spokes 106 are the reinforcing iron plate 10
It is reinforced and connected at 9.
そして、ゴムを装着する接着剤Ａと鉄とを接着する接着
剤Ｂを上記車輪本体110全体に塗布し、乾燥後、ゴムを
接着する接着剤Ａをスポーク106のゴムが被覆される部
分と円環状リム107とに塗布する。次に、円環状リム107
外周にゴムを溶剤にて溶かした液を塗布し、その上に帯
状の接着性の良い天然生ゴムＣを接着し、更にその上に
ゴムを溶剤にて溶かした液を塗布する。Then, the adhesive A for attaching the rubber and the adhesive B for adhering the iron are applied to the entire wheel body 110, and after drying, the adhesive A for adhering the rubber and the portion of the spoke 106 covered with the rubber are circled. Apply to the annular rim 107. Next, the annular rim 107
A liquid in which rubber is dissolved in a solvent is applied to the outer periphery, a band-shaped natural raw rubber C having good adhesiveness is adhered thereon, and a liquid in which rubber is dissolved in a solvent is applied thereon.
次に、下型11を上型12と対向する位置から左右レール10
・10上をロ方向に移動させて左右レール10・10の先端部
に位置させる。そして、前以て帯状の生ゴムに車輪100
のラグ102・102間のピッチに合わせて切り目を入れた帯
状生ゴムＤを成形可能で短時間では加硫しない温度70〜
110℃に予熱したものを、下型11の型25に載せる。その
とき、切り目がラグ102を成形する部分27・27の真中に
位置するようにして生ゴムが該27…に丁度位置するよう
にしてピン50にて帯状生ゴムＤを係止する。Next, move the lower mold 11 from the position facing the upper mold 12 to the right and left rails 10
・ Move 10 in the direction of B and position it on the tip of left and right rails 10 ・ 10. Then, in front of the belt-shaped raw rubber, the wheel 100
It is possible to mold the band-shaped raw rubber D with notches according to the pitch between the lugs 102, 102, and it will not vulcanize in a short time.
The one preheated to 110 ° C is placed on the mold 25 of the lower mold 11. At that time, the band-shaped raw rubber D is locked by the pin 50 so that the raw rubber is positioned exactly on the 27 ...
そして、調温庫14から中子型20を取出して、その嵌合ピ
ン43…が下型11に設けられた貫通孔37b…に嵌入するよ
うにして下型11の上に重ねる。Then, the core mold 20 is taken out from the temperature control chamber 14, and the fitting pins 43 ... Are laid on the lower mold 11 so as to be fitted into the through holes 37b provided in the lower mold 11.
そして、中子型20の上面の型44上にも帯状生ゴムＤを載
せる。そのとき、下型11に帯状生ゴムＤを載せたのと同
様に、切り目がラグ102を成形する突起部46・46の真中
に位置するようにして生ゴムが該突起部46…に丁度位置
するようにしてピン51にて帯状生ゴムＤを係止する。そ
して、中子型20が重ねられた下型11を左右レール10・10
上をイ方向に移動させて上型12と対向する位置にし、上
型12の位置あわせ嵌合ピン38…が中子型20の貫通孔42…
を貫通し下型11の穴37aに嵌入するようにして、上型12
と中子型20と下型11とが密着するまで油圧装置８を作動
させて上下動枠体６を上動させる。そのときの各型間の
プレス圧は100〜120kg/cm2ぐらいで、約２分程成形す
る。すると、帯状生ゴムＤは各型25・25′・44・44にて
プレス成形されて、車輪100のタイヤ胴部101,ラグ102
…，スポーク被覆部103…，及びリム107が入る空洞部12
3が成形される。そのとき、ラグ102…部分は、中子型20
に形成された突起46…の押圧と下型11と上型12のラグ10
2を成形する部分27…27′…の底に穿設された貫通孔31
…より真空ポンプにて吸引することとにより、下型11と
上型12のラグ102を成形する部分27…・27′…の底隅部
までゴムが十分にいきわたり、きれいに成型される。そ
して、油圧装置８にて上下動枠体６を下動させて上型12
と中子型20とを離した後、中子型20が重ねられたまま下
型11を左右レール10・10上をロ方向に移動させて左右レ
ール10・10先端部にまで引き出す。そして、リフト装置
にて中子型20を下型12から離し、中子型20は再び調温庫
14に収納する。この時、中子型20の型44・44の表面がシ
リコン焼付け処理（または、フッ素コーティング処理）
された成形後のゴムが容易に離れるようになっているこ
とと下型11・上型12の型25・25′の表面が粗雑面に処理
されてゴムが離れにくくなっていることとにより、成形
された半割状のタイヤ片130・130は、各々下型11と上型
12とに残る。Then, the band-shaped raw rubber D is also placed on the mold 44 on the upper surface of the core mold 20. At that time, similarly to the case where the strip-shaped raw rubber D is placed on the lower mold 11, the cut rubber is positioned in the middle of the projections 46 forming the lug 102 so that the raw rubber is located exactly on the projections 46. Then, the band-shaped raw rubber D is locked by the pin 51. Then, the lower mold 11 on which the core mold 20 is stacked is attached to the left and right rails 10 and 10.
The upper part is moved in the direction a to a position facing the upper mold 12, and the positioning fitting pins 38 of the upper mold 12 are connected to the through holes 42 of the core mold 20.
Through the hole 37a of the lower mold 11 so that the upper mold 12
The hydraulic device 8 is operated to move the vertical moving frame 6 upward until the core mold 20 and the lower mold 11 come into close contact with each other. The pressing pressure between the molds at that time is 100 to 120 kg / cm 2 , and the molding is performed for about 2 minutes. Then, the band-shaped raw rubber D is press-molded by each mold 25, 25 ', 44, 44, and the tire body 101 of the wheel 100 and the lug 102 are formed.
..., the spoke covering portion 103, and the cavity portion 12 into which the rim 107 is inserted.
3 is molded. At that time, the lug 102 ... is the core type 20
Of the projections 46 formed on the lower mold 11 and the lug 10 of the upper mold 12
A through hole 31 formed in the bottom of the part 27 ... 27 '...
... By sucking with a vacuum pump, the rubber is sufficiently spread to the bottom corners of the parts 27, ..., 27 'of the lower mold 11 and the upper mold 12 where the lugs 102 are molded, and the rubber is molded neatly. Then, the upper and lower molds 12 are moved by lowering the vertical moving frame body 6 by the hydraulic device 8.
After separating the core mold 20 and the core mold 20, the lower mold 11 is moved on the left and right rails 10 and 10 in the direction of B while the core mold 20 is overlapped, and pulled out to the tip of the left and right rails 10 and 10. Then, the core die 20 is separated from the lower die 12 by the lift device, and the core die 20 is again in the temperature control chamber.
Store in 14. At this time, the surfaces of the molds 44 and 44 of the core mold 20 are silicon-baked (or fluorine-coated)
Due to the fact that the rubber after molding is easily separated and the surfaces of the molds 25 and 25 'of the lower mold 11 and the upper mold 12 are roughened to make it difficult for the rubber to separate. Molded half tire pieces 130, 130 are respectively the lower mold 11 and the upper mold.
12 and remain.
このようにして第14図のように半割状のタイヤ片130・1
30が成形されるのであるが、下型11と上型12との接合面
から各半割状のタイヤ片130・130の接合代E1・E2が突出
している（中子型20の環状溝部分60・61にて形成された
部分）。そして、該接合代E1・E2は中子型20にて成形さ
れているので未だ加硫されていないので、次工程で半割
状のタイヤ片130・130を一体に接合して加硫するとき一
体になり、２つの半割状のタイヤ片130・130は強固に接
着して成形される。また、この接合代E1の形状はタイヤ
の外周側はその突出量d2が小さくタイヤ内部側はその突
出量d1が大きい傾斜状に形成されている。それは、２つ
の半割状のタイヤ片130・130を一体に接合するとき、下
型11と上型12に接して加硫が進んでいる外面に影響を与
える外周側は接着に必要なだけの少ない突出量として、
接合時に加硫が進んでいる外面表面部に押圧力をあまり
与えないようにして表面部に皺や筋目等が入らないよう
にしてあると共に、下型11と上型12に接していない未加
硫の内部側に突出量を大きくして接合時に余分のゴムが
中空部108に盛り上がり盛上がり部111を形成し充分な接
着力が得られるようになっている。In this way, the tire pieces 130.
30 is molded, but the joint margins E 1 and E 2 of the tire pieces 130 and 130 in each half-projection project from the joint surface between the lower mold 11 and the upper mold 12 (the ring shape of the core mold 20). (The portion formed by the groove portions 60 and 61). Since the joining margins E 1 and E 2 are not yet vulcanized because they are molded in the core mold 20, the half-split tire pieces 130 and 130 are integrally joined and vulcanized in the next step. The two tire pieces 130, 130 in the form of two halves are firmly bonded and molded. The shape of the bonding margins E 1 is the outer circumferential side of the tire inner side reduce its projecting amount d 2 of the tire are formed on the projection amount d 1 is larger inclined. That is, when joining two half-divided tire pieces 130 and 130 together, the outer peripheral side that is in contact with the lower mold 11 and the upper mold 12 and affects vulcanization is necessary for bonding. As a small amount of protrusion,
The surface of the outer surface where vulcanization is progressing at the time of joining is not so much pressed so that wrinkles and creases do not enter the surface, and it is not in contact with the lower mold 11 and the upper mold 12. The amount of protrusion is increased on the inner side of the vulcanization, and excess rubber rises in the hollow portion 108 to form a raised portion 111 at the time of joining, so that sufficient adhesive force can be obtained.
次に、前記円環状リム107外周に帯状の生ゴムＣを接着
した車輪本体110のボス104の孔部105を下型11の支持ピ
ン29に挿通してスポーク支持部30…にスポーク106を支
持させて、車輪本体110のリム107が下型11の半割状のタ
イヤ片130・130のリム107が入る空洞部123に位置するよ
うにする。Next, the hole 105 of the boss 104 of the wheel body 110 having the band-shaped raw rubber C adhered to the outer periphery of the annular rim 107 is inserted into the support pin 29 of the lower mold 11 so that the spoke 106 is supported by the spoke support 30. Thus, the rim 107 of the wheel body 110 is positioned in the cavity 123 into which the rim 107 of the tire piece 130/130 of the lower mold half 11 is inserted.
そして、下型11を再び左右レール10・10上をイ方向に移
動させて上型12と対向する位置にし、ノズル23の噴出管
23cの先端が半割状のタイヤ片130・130の中空部108に位
置するように下型11の台39にノズル23を設置し、上型12
の位置あわせ嵌合ピン38…が下型11の穴37aに嵌入する
ようにして、上型12と下型11とが密着するまで油圧装置
８を作動させて上下動枠体６を上動させる。そのときの
両型11・12間のプレス圧は、ノズル23の先端より噴出さ
れる水蒸気の圧力12kg/cm2よりも大きければ良いが、本
実施例では100〜120kg/cm2ぐらいに設定している。Then, the lower die 11 is moved again on the left and right rails 10 and 10 in the direction a so as to face the upper die 12, and the ejection pipe of the nozzle 23 is ejected.
The nozzle 23 is installed on the base 39 of the lower mold 11 so that the tip of the 23c is located in the hollow portion 108 of the tire piece 130/130 having a half-divided shape.
So that the positioning fitting pins 38 ... Are fitted into the holes 37a of the lower mold 11, and the hydraulic device 8 is operated until the upper mold 12 and the lower mold 11 come into close contact with each other to move the vertical moving frame body 6 upward. . The press pressure between the two molds 11 and 12 at that time may be larger than the pressure of the steam ejected from the tip of the nozzle 23 of 12 kg / cm 2, but in this embodiment, it is set to about 100 to 120 kg / cm 2. ing.
そして、パイプ24のバルブ24′を操作してノズル23の先
端より温度が140〜200℃で圧力が12kg/cm2の水蒸気を噴
出させる。Then, the valve 24 'of the pipe 24 is operated to eject water vapor having a temperature of 140 to 200 ° C and a pressure of 12 kg / cm 2 from the tip of the nozzle 23.
すると、タイヤは下型11と上型12の熱（温度140〜200
℃）にて外面から加硫されると共に、ノズル23より噴出
される140〜200℃の水蒸気にて内部からも加硫され、５
〜10分にてタイヤ全体が加硫される。Then, the tire is heated by the lower mold 11 and the upper mold 12 (temperature 140 ~ 200
℃) from the outside and vulcanized from the inside with 140 to 200 ℃ steam ejected from the nozzle 23.
The entire tire is vulcanized in ~ 10 minutes.
このとき、リム107が入るタイヤ片130・130の空洞部123
・123の表面123′・123′は、中子型20にて成形されて
いるからまだ殆ど加硫されていないので、リム107に適
確に接着する。更には、リム107が入るタイヤ片130・13
0の空洞部123の半径L1はリム107の半径L2よりも小さく
形成されているので、プレス時にリム107にてゴムが押
圧され、リム107とタイヤ片130・130との接着が的確に
行なわれる。また、リム107にて押圧された余分なゴム
の一部が中空部108側に盛り上がり、リム107に接着して
ある帯状生ゴムＣと密着するので、中空部108内に高圧
の水蒸気をいれても、該水蒸気がゴムとリム107との間
に入り込むことを防止する。従って、リム107とタイヤ
片130・130との接着は非常に強固なものとなる。At this time, the cavity 123 of the tire piece 130/130 into which the rim 107 is inserted.
Since the surfaces 123 ′ and 123 ′ of 123 have not been vulcanized yet because they are molded by the core mold 20, they are properly bonded to the rim 107. Furthermore, the tire pieces 130 and 13 in which the rim 107 enters
Since the radius L 1 of the hollow portion 123 of 0 is formed smaller than the radius L 2 of the rim 107, the rubber is pressed by the rim 107 during pressing, and the adhesion between the rim 107 and the tire pieces 130/130 is accurately performed. Done. Further, since a part of the excess rubber pressed by the rim 107 rises toward the hollow portion 108 side and adheres to the strip-shaped raw rubber C adhered to the rim 107, even if high-pressure steam is put into the hollow portion 108. Prevents the water vapor from entering between the rubber and the rim 107. Therefore, the adhesion between the rim 107 and the tire pieces 130, 130 becomes extremely strong.
また、タイヤ片130・130のゴム内部に入り込んでいた空
気（ゴムを圧延するときにゴム内部に空気が入り込
む。）や熱にてゴム内部に発生したガス等が加硫時に加
える温度にて膨張するのを、中空部108内にいれた水蒸
気の高圧で抑制するので、安定した均一のゴム組織が得
られ良質のタイヤが成形される。そして、中空部108内
にいれた水蒸気の高圧にて、上記リム107にて押圧され
て中空部108内に盛り上がったゴムやリム107に接着して
いた帯状生ゴムＣをリム107に押圧し、リム107とタイヤ
片130・130とは更に強固に接着される。In addition, the air that has entered the inside of the rubber of the tire pieces 130/130 (air enters the inside of the rubber when rolling the rubber) and the gas generated inside the rubber due to heat expands at the temperature applied during vulcanization. Since this is suppressed by the high pressure of the steam introduced into the hollow portion 108, a stable and uniform rubber structure can be obtained, and a good quality tire can be molded. Then, by the high pressure of the steam introduced into the hollow portion 108, the rubber which is pressed by the rim 107 and rises in the hollow portion 108 or the band-shaped raw rubber C adhered to the rim 107 is pressed against the rim 107, 107 and the tire pieces 130, 130 are further firmly bonded together.
このようにして、ノズル23より140〜200℃の水蒸気を噴
出させて５〜10分加硫させた後、バルブ24′を操作して
水蒸気の噴出を停止すると共に中空部108内の水蒸気を
大気中に開放する状態にして約１分間そのままとし、中
空部108内部を大気圧にしてから、油圧装置８にて上下
動枠体６を下動させて上型12と下型11とを離しノズル23
を取外した後、下型11を左右レール10・10上をロ方向に
移動させて左右レール10・10先端部にまで引き出し、車
輪100を下型11より取り出す。In this way, after steam of 140 to 200 ° C. is jetted from the nozzle 23 and vulcanized for 5 to 10 minutes, the valve 24 ′ is operated to stop the jet of steam and the steam in the hollow portion 108 is discharged to the atmosphere. The inside of the hollow portion 108 is left at the atmospheric pressure for about 1 minute, and the inside of the hollow portion 108 is brought to atmospheric pressure. Then, the vertical moving frame body 6 is moved downward by the hydraulic device 8 to separate the upper die 12 and the lower die 11 from each other, and the nozzle twenty three
After removing the lower mold 11, move the lower mold 11 on the left and right rails 10 and 10 in the direction of B to pull it out to the tip of the left and right rails 10 and 10 and take out the wheel 100 from the lower mold 11.
そして、ノズル23の噴出管23Cにてタイヤ外周部に形成
された孔112を、該孔112の直径よりも大きい直径の円柱
状のゴム113を圧入接着して塞ぎ、下型11と上型12のラ
グ102を成形する部分27・27′の底に穿設された貫通孔3
1…・31′…内に成形時に余分なゴムがはまってできた
ラグ102より側方に突出する円柱状ゴム部114…は、その
根本部より切断して取り除く。また、下型11と上型12に
設けられた穴35…内に成形時に余分なゴムがはまってで
きたラグ102より側方に突出する円柱状ゴム部115…は、
その突出量が小さいのでそのままでも良いが、車輪とし
て性能に悪影響を及ぼす場合にはその根本部より切断し
て取り除く。Then, the hole 112 formed in the outer peripheral portion of the tire by the ejection pipe 23C of the nozzle 23 is closed by press-fitting and adhering a cylindrical rubber 113 having a diameter larger than the diameter of the hole 112, and the lower mold 11 and the upper mold 12 Through hole 3 formed in the bottom of the portion 27, 27 'where the lug 102 of
The columnar rubber portions 114, which protrude laterally from the lug 102 formed by the extra rubber fitted into 1 ... 31 '... during cutting, are cut and removed from their root portions. Further, the cylindrical rubber portions 115, which project laterally from the lug 102 formed by the extra rubber fitted into the holes 35 provided in the lower mold 11 and the upper mold 12 at the time of molding,
Since the amount of protrusion is small, it may be left as it is, but if it adversely affects the performance of the wheel, cut it from the root part and remove it.
このようにして、第17図から第19図に示すような車輪10
0がつくられるのであるが、そのタイヤ胴部101内部に中
空部108が形成されているので、走行車体に装着した場
合、クッションが良く走行性能が良い。また、タイヤ胴
部101に釘などが刺さって多少の孔があいても、中空部1
08内はもともと大気圧であるから支障がなく、従来の高
圧空気入れ車輪のように走行不能になることなく、その
まま走行を続行できる。これは、上記の如く製造された
車輪100のタイヤ胴部101及びラグ102の形状が、内部に
中空部108があってもソリッドタイヤと略々同じように
走行車体を支えるようになっているからである。更に詳
しく述べると、タイヤ胴部101のリム107に接着する部分
（中空部108の下側部分）120の厚みｔが，中空部108の
上側部分121の厚みｔ′よりも厚く形成されており、路
面から受ける走行車体の荷重の反力にて該肉厚の薄い中
空部108の上側部分121が変形して車輪100の良好なクッ
ション性を発揮するが、必要以上の撓みは肉厚の厚いタ
イヤ胴部101のリム107に接着する部分（中空部108の下
側部分）120にて阻止される。従って、車輪100のタイヤ
は、良好なるクッション性を発揮しつつ、内部に中空部
108があるにも拘らずソリッドタイヤと略々同様に走行
車体を支えることができる。In this way, the wheel 10 as shown in FIGS.
Although 0 is produced, since the hollow portion 108 is formed inside the tire body portion 101, cushioning is good and traveling performance is good when mounted on a traveling vehicle body. In addition, even if a nail or the like penetrates the tire body 101 to form some holes, the hollow portion 1
Since the inside of the 08 is originally atmospheric pressure, there is no problem, and it is possible to continue traveling as it is without being unable to run like the conventional high pressure inflator wheels. This is because the shapes of the tire body portion 101 and the lug 102 of the wheel 100 manufactured as described above support the traveling vehicle body in substantially the same manner as a solid tire even if there is a hollow portion 108 inside. Is. More specifically, the thickness t of the portion (the lower side portion of the hollow portion 108) 120 that is bonded to the rim 107 of the tire body 101 is formed to be thicker than the thickness t ′ of the upper portion 121 of the hollow portion 108. The upper portion 121 of the thin hollow portion 108 is deformed by the reaction force of the load of the traveling vehicle body that is received from the road surface to exhibit good cushioning properties of the wheel 100, but the unnecessary deflection is a thick tire. It is blocked at a portion (lower side portion of hollow portion 108) 120 of the body portion 101 that is bonded to the rim 107. Therefore, the tire of the wheel 100 has a hollow portion inside while exhibiting good cushioning properties.
Despite having 108, it can support the vehicle body almost like a solid tire.
そして、ラグ102の基部内部に中空部108と連通する空洞
部108′を設けたものであるから、ラグ102に加わる応力
は該空洞部108′の存在によりラグ102基部全体の撓みに
より吸収され、また、中空部108に該空洞部108′が連通
していることにより中空部108にて吸収されるので、ラ
グの基部に亀裂が生じ破損することが少なく、該空洞部
108′と中空部108との存在により、クッション性が良く
なり車輪としての走行性能が良い。Since the hollow portion 108 'communicating with the hollow portion 108 is provided inside the base portion of the lug 102, the stress applied to the lug 102 is absorbed by the bending of the entire base portion of the lug 102 due to the presence of the hollow portion 108', Further, since the hollow portion 108 'communicates with the hollow portion 108 and is absorbed by the hollow portion 108, the base portion of the lug is less likely to be cracked and damaged.
Due to the existence of 108 'and the hollow portion 108, the cushioning property is improved and the running performance as a wheel is improved.
最後に、車輪100のボス104とスポーク106…と補強鉄板1
09とを、ゴムと同色の黒色の塗料にて着色し、タイヤの
側面に形成された環状溝122…のうちの一側面（走行車
体に装着するときに外側に位置する側面）のみに黄色か
白色等の塗料を塗布すれば、商品価値が上がると共に、
車輪100の回転方向がラグ102の形状にて特定されている
場合（農業機械用のラグ付き車輪は、殆ど全て車体装着
時の回転方向が決められている。）、走行車体に装着す
るときに外側に位置する側面のみに環状の目立つ色の塗
料が塗布されているので車体への装着方向を間違えるこ
とを防止できる。Finally, the boss 104, the spoke 106, and the reinforcing steel plate 1 of the wheel 100.
09 and 9 are colored with a black paint that is the same color as rubber, and only one side of the annular groove 122 formed on the side of the tire (side located outside when mounted on the running vehicle body) is yellow. Applying white paint etc. will increase the commercial value,
When the rotation direction of the wheel 100 is specified by the shape of the lug 102 (almost all the wheels with lugs for agricultural machines have the rotation direction when mounted on the vehicle body), when mounted on the traveling vehicle body. Since the ring-shaped paint of a conspicuous color is applied only to the side surface located on the outer side, it is possible to prevent the mounting direction to the vehicle body from being mistaken.
尚、上記実施例においては、中子型20を調温庫14内に入
れて、中子型20を生ゴムが成形可能で短時間では加硫し
ない温度70℃〜110℃に調節するようにしたが、中子型2
0の自体の内部に電熱ヒーターと冷却装置とを設けると
共に、中子型20表面に温度センサーを設けて、該温度セ
ンサーの検出により電熱ヒーターと冷却装置を制御し、
中子型20を70℃〜110℃に調節するようにしても良い。In the above example, the core mold 20 was placed in the temperature control chamber 14, and the core mold 20 was adjusted to a temperature of 70 ° C to 110 ° C at which raw rubber could be molded and not vulcanized in a short time. But core type 2
While providing an electric heater and a cooling device inside 0 itself, a temperature sensor is provided on the surface of the core mold 20, and the electric heater and the cooling device are controlled by the detection of the temperature sensor,
The core mold 20 may be adjusted to 70 ° C to 110 ° C.
図は、この発明の一実施例を示したもので、第１図は油
圧式プレス成形装置の側面図、第２図は下型11の平面
図、第３図は第２図のS1−S1断面図、第４図は第２図の
S2−S2断面図、第５図は第２図のＦ矢視図、第６図は上
型12の底面図、第７図は第６図のS3−S3断面図、第８図
は第６図のS4−S4断面図、第９図は中型20の平面図、第
10図は第９図のS5−S5断面図、第11図は第９図のS6−S6
断面図、第12図は第９図のS7−S7断面図、第13図は第９
図のS8−S8断面図、第14図は成形時の作用説明断面図、
第15図は帯状生ゴムＤの斜視図、第16図は生ゴムＣを接
着した車輪本体110の側面図、第17図は成形された車輪1
00の一部断面側面図、第18図は第17図の平面図、第19図
は第17図のS9−S9断面図である。 図中記号、１は油圧式プレス成形装置、11は下型、12は
上型、20は中子型、23はノズル、31・31′は貫通孔（吸
引部）、46は突起部、100は車輪、101はタイヤ胴部、10
2はラグ、103はスポーク被覆部、104はボス、106はスポ
ーク、107はリム、108は中空部、123は空洞部、123′は
空洞部123の表面、130はタイヤ片を示す。FIG. 1 shows an embodiment of the present invention. FIG. 1 is a side view of a hydraulic press molding apparatus, FIG. 2 is a plan view of a lower mold 11, and FIG. 3 is S 1-of FIG. S 1 cross section, Fig. 4 of Fig. 2
S 2 -S 2 sectional view, Fig. 5 F arrow view of FIG. 2, FIG. 6 is a bottom view of the upper mold 12, FIG. 7 is S 3 -S 3 cross-sectional view of FIG. 6, 8 Fig. 6 is a sectional view taken along the line S 4 -S 4 of Fig. 6, and Fig. 9 is a plan view of the middle die 20,
FIG. 10 is a sectional view taken along line S 5 -S 5 of FIG. 9, and FIG. 11 is taken along line S 6 -S 6 of FIG.
A sectional view, FIG. 12 is a sectional view taken along line S 7 -S 7 of FIG. 9, and FIG. 13 is a sectional view of FIG.
S 8 -S 8 cross-sectional view of FIG, Fig. 14 acts explanatory cross-sectional view at the time of molding,
FIG. 15 is a perspective view of the strip-shaped raw rubber D, FIG. 16 is a side view of the wheel body 110 to which the raw rubber C is adhered, and FIG. 17 is a molded wheel 1
00 is a partial sectional side view, FIG. 18 is a plan view of FIG. 17, and FIG. 19 is a sectional view taken along line S 9 -S 9 of FIG. Reference numeral 1 in the figure, 1 is a hydraulic press molding device, 11 is a lower mold, 12 is an upper mold, 20 is a core mold, 23 is a nozzle, 31 and 31 'are through holes (suction part), 46 is a protrusion, 100 Is a wheel, 101 is a tire body, 10
2 is a lug, 103 is a spoke covering portion, 104 is a boss, 106 is a spoke, 107 is a rim, 108 is a hollow portion, 123 is a hollow portion, 123 'is a surface of the hollow portion 123, and 130 is a tire piece.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｋ 105:22 105:24 Ｂ２９Ｌ 30:00 (72)発明者 小田 悟 広島県福山市松浜町３丁目１番63号 福山 ゴム工業株式会社内 審査官 川端 康之 (56)参考文献 特開 平２−192916（ＪＰ，Ａ)─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location B29K 105: 22 105: 24 B29L 30:00 (72) Inventor Satoru Oda 3-chome, Matsuhama-cho, Fukuyama-shi, Hiroshima No. 1-63 Fukuyama Rubber Industry Co., Ltd. Examiner Yasuyuki Kawabata (56) References JP-A-2-192916 (JP, A)
Claims (1)
と移動自在な中子型20とを備え、該外型11・12と中子型
20とでそれらの間に挟んだタイヤ片130・130を成形し、
該成形されたタイヤ片130・130の間にリム107を挟んで
タイヤ片130・130を接合して一体に成形加硫するする車
輪製造装置であって、前記外型11・12を生ゴムが短時間
で加硫する温度に加熱する加熱手段を設けるととも、前
記中子型20を生ゴムが短時間では殆ど加硫しない温度に
調節する調温手段を設け、該調温手段に加熱手段と冷却
手段とを装備したことを特徴とする車輪の製造装置。1. Outer molds 11 and 12 attached to the press molding apparatus 1.
And a movable core mold 20, and the outer molds 11 and 12 and the core mold.
Mold the tire pieces 130 and 130 sandwiched between them with 20 and
A wheel manufacturing apparatus for sandwiching a rim 107 between the molded tire pieces 130, 130 to join the tire pieces 130, 130 and integrally molding and vulcanizing, wherein the outer molds 11, 12 are made of short raw rubber. A heating means for heating to a temperature for vulcanization in time is provided, and a temperature adjusting means for adjusting the core mold 20 to a temperature at which the raw rubber is hardly vulcanized in a short time is provided, and the temperature adjusting means and the cooling means are provided. An apparatus for manufacturing a wheel, characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1061221A JPH07118988B2 (en) | 1989-03-13 | 1989-03-13 | Wheel manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1061221A JPH07118988B2 (en) | 1989-03-13 | 1989-03-13 | Wheel manufacturing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02238908A JPH02238908A (en) | 1990-09-21 |
| JPH07118988B2 true JPH07118988B2 (en) | 1995-12-20 |
Family
ID=13164932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1061221A Expired - Fee Related JPH07118988B2 (en) | 1989-03-13 | 1989-03-13 | Wheel manufacturing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07118988B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2811001B2 (en) * | 1989-01-20 | 1998-10-15 | 福山ゴム工業株式会社 | Manufacturing method of hollow wheel |
-
1989
- 1989-03-13 JP JP1061221A patent/JPH07118988B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02238908A (en) | 1990-09-21 |
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