JPH0144487B2 - - Google Patents
Info
- Publication number
- JPH0144487B2 JPH0144487B2 JP56057689A JP5768981A JPH0144487B2 JP H0144487 B2 JPH0144487 B2 JP H0144487B2 JP 56057689 A JP56057689 A JP 56057689A JP 5768981 A JP5768981 A JP 5768981A JP H0144487 B2 JPH0144487 B2 JP H0144487B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- bladder
- gas
- passage
- gas venting
- 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
Links
- 238000013022 venting Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000007872 degassing Methods 0.000 claims description 6
- 230000009956 central mechanism Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 28
- 210000002445 nipple Anatomy 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- -1 steam Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0662—Accessories, details or auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、タイヤ加硫機におけるガス抜き装置
の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in degassing devices in tire vulcanizers.
従来、ブラダーと、該ブラダーを支持する上部
リングと下部リングと、センターポストとを備え
た中心機構を有するタイヤ加硫機、特に第１図に
示す如く、下部リング１と、該下部リング１を貫
通するセンターポスト２に取付けた上部リング３
とでブラダー４を支持して成る加硫機では、ピス
トングランド５に設けた給管６、排管７からブラ
ダー４を介して金型内のタイヤ８の内部に温水、
スチーム、ガス、冷却水等の流体を順次に給排し
てタイヤ８を加硫成型するものであるが、給、排
管６，７を中心機構の芯部分であるピストングラ
ンド５に設けているために、温水又は冷却水の充
満時に、タイヤ８の内方上部に残つたガス（例え
ばエアー、窒素ガス、スチームガス）により温水
の供給が遅れたり、残溜ガスの部分が冷却不足と
なり、加硫ムラを生じ易いという問題があつた。 Conventionally, a tire vulcanizer has a central mechanism including a bladder, an upper ring and a lower ring supporting the bladder, and a center post, and in particular, as shown in FIG. Upper ring 3 attached to penetrating center post 2
In the vulcanizer, which supports the bladder 4 with
The tire 8 is vulcanized and molded by sequentially supplying and discharging fluids such as steam, gas, and cooling water, and the supply and discharge pipes 6 and 7 are provided in the piston gland 5, which is the core part of the central mechanism. Therefore, when hot water or cooling water is filled, the supply of hot water may be delayed due to gas (e.g., air, nitrogen gas, steam gas) remaining in the inner upper part of the tire 8, or the remaining gas may be insufficiently cooled, resulting in There was a problem that sulfur unevenness was likely to occur.
本発明は、上記従来の問題点に鑑みてなされた
もので、上部リングにガス抜き通路を設けてガス
抜きを迅速かつ充分にし、加熱、冷却を均一化し
て加硫不足を事前に防止し得る一方、本出願人の
他の出願に係るブラダー内にセツテイングするフ
ロート方式のガス抜き装置などに比し、殆んどの
部品をブラダー外でセツテイングしてセツテイン
グ作業を容易化し得るようにしたタイヤ加硫機に
おけるガス抜き装置を提供するものである。 The present invention has been made in view of the above-mentioned conventional problems, and it is possible to provide a gas venting passage in the upper ring to ensure quick and sufficient gas venting, and to make heating and cooling uniform, thereby preventing insufficient vulcanization in advance. On the other hand, compared to the float-type degassing device that is set inside the bladder related to other applications of the present applicant, most of the parts are set outside the bladder, making the setting work easier. The present invention provides a degassing device for a machine.
以下、本発明の実施例を添附図面について詳細
に説明する。 Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
第２図に示すように、センターポスト２にクリ
ツプ９で取付けた上部リング３には、ブラダー８
をブラダー押え１０で挾持する一方、該上部リン
グ３の外周下面には、外周方向に入口１９を向け
て特殊バルブ１１を螺着すると共に、該特殊バル
ブ１１に対応して、上方から上記ブラダー押え１
０を貫通するニツプル１２を上部リング３に螺着
して、特殊バルブ１１とニツプル１２とでガス抜
き通路１３を形成する。尚、特殊バルブは用いな
くてもよい。 As shown in FIG. 2, the upper ring 3 attached to the center post 2 with a clip 9 has a bladder 8.
A special valve 11 is screwed onto the lower surface of the outer periphery of the upper ring 3 with the inlet 19 facing toward the outer periphery. 1
A nipple 12 passing through 0 is screwed onto the upper ring 3, and the special valve 11 and nipple 12 form a gas vent passage 13. Note that there is no need to use a special valve.
上記センターポスト２の上端部には、フツソゴ
ムやテフロン系ゴム製等のパツキン１４を底面に
有する、ステンレスや黄銅製等の弁座シート１５
を螺着すると共に、該弁座シート１５の通路１６
に接続したセンターポスト２側部のニツプル１７
と、上部リング３のニツプル１２とを導管２７で
連結する。 At the upper end of the center post 2, a valve seat 15 made of stainless steel or brass has a packing 14 made of soft rubber or Teflon rubber on the bottom surface.
and the passage 16 of the valve seat 15.
Nipple 17 on the side of center post 2 connected to
and the nipple 12 of the upper ring 3 are connected by a conduit 27.
上記特殊バルブ１１は、第３図に詳細に示すよ
うに、逆Ｌ字状の通路１８を有し、下部通路１８
ａの入口１９には可撓性のガス抜きホース２０を
接続し得るようにする一方、上部通路１８ｂに
は、該通路１８ｂにガス抜き隙間を隔ててバルブ
ポペツト２１を嵌合すると共に、通路１８ａと通
路１８ｂを連通する連通孔２２を設け、上部通路
１８ｂの出口に螺着したスリーブねじ２５と上記
バルブポペツト２１との間にコイルばね２６を縮
装して、常時バルブポペツト２１を閉止位置に保
持している。該スリーブねじ２５の螺合位置によ
りコイルばね２６の付勢力を調節して、バルブポ
ペツト２１の開閉力を設定する。 As shown in detail in FIG. 3, the special valve 11 has an inverted L-shaped passage 18, and a lower passage 18.
A flexible gas venting hose 20 can be connected to the inlet 19 of the upper passage 18b, and a valve poppet 21 is fitted into the upper passage 18b with a gas venting gap in between. A communication hole 22 is provided to communicate the passage 18b, and a coil spring 26 is compressed between the valve poppet 21 and a sleeve screw 25 screwed onto the outlet of the upper passage 18b, so that the valve poppet 21 is always held in the closed position. There is. The opening and closing force of the valve poppet 21 is set by adjusting the biasing force of the coil spring 26 depending on the screwing position of the sleeve screw 25.
上記コイルばね２６のばね力fsは、ブラダー８
内の圧力PIに打ち勝つてバルブポペツト２１によ
り連通孔２２を閉塞する一方、後述のエゼクター
３８による吸引力PVに負けて連通孔２２を開放
するようにするため、上部通路１８ｂの内径Ｂと
連通孔２２の内径Ａとの関係をできるだけ大きく
する。 The spring force f s of the coil spring 26 is the same as that of the bladder 8
In order to overcome the internal pressure P I and close the communication hole 22 with the valve poppet 21, while opening the communication hole 22 against the suction force PV of the ejector 38, which will be described later, the inner diameter B of the upper passage 18b and the communication hole are The relationship with the inner diameter A of 22 is made as large as possible.
即ち、
fs＞πA2／４PI
fs＋πB2／４PV＜πA2／４PI
の関係である。Ｂ／Ａを大にするほど真空度が小さ
くなり、必要最小限の真空度でPIとPVをアンバ
ランスにしてバルブスピンドルを浮かせてガスが
吸収されることになる。 That is, the relationship is f s > πA 2 /4PI f s +πB 2 /4P V <πA 2 /4P I. As B/A increases, the degree of vacuum decreases, and with the minimum necessary degree of vacuum, P I and P V are unbalanced, the valve spindle floats, and gas is absorbed.
再び第２図〜第４図に戻つて、上型２８をプラ
テン５０等を介して案内し、シリンダで上下動さ
れる公知のトツプリンク２９には、振れ止めのガ
イド３０で下端側を規制した配管３１を昇降可能
に支持して設け、該配管３１の下端部には上記セ
ンターポスト２の弁座シート１５に当接可能な弁
体３２を固定する一方、該弁体３２のツバ部３３
には、上記ガイド３０のツバ板３６に固定したル
ーズボルト３４，３４が挿通して昇降方向に案内
すると共に、上記ツバ部３３と上記ガイド３０と
の間にコイルばね３５を縮装している。 Returning again to FIGS. 2 to 4, the upper mold 28 is guided through a platen 50, etc., and the lower end of the known top link 29, which is moved up and down by a cylinder, is regulated by a steady rest guide 30. A piping 31 is supported so as to be movable up and down, and a valve body 32 that can come into contact with the valve seat 15 of the center post 2 is fixed to the lower end of the piping 31.
Loose bolts 34, 34 fixed to the collar plate 36 of the guide 30 are inserted through the guide 30 to guide it in the vertical direction, and a coil spring 35 is compressed between the collar 33 and the guide 30. .
該コイルばね３５は、常時は配管３１とともに
弁体３２を下方に付勢した状態で弁体３２を下降
位置でルーズボルト３４，３４に当て止めると共
に、トツプリンク２９の下降時に、弁体３２が弁
座シート１５に当接したとき上方に逃げつつ弁座
シート１５に圧接するようになる。 The coil spring 35 normally urges the valve body 32 downward together with the piping 31 and holds the valve body 32 against the loose bolts 34, 34 in the lowered position, and when the top link 29 is lowered, the valve body 32 is pressed downward. When it comes into contact with the valve seat 15, it escapes upward and comes into pressure contact with the valve seat 15.
上記配管３１の上端部は第４図に示すようにト
ツプリンク２９の開口部４１を通して吸引機構４
２に連結されており、吸引機構４２は、切替弁３
７を介して高圧水（３〜21Kg／cm2）を供給するエ
ゼクター３８に、切換弁３９を介して接続する。
水エジエクターに加えて真空ポンプを用いること
ができる。特殊バルブ１１を用いるときはこの水
エジエクター又は真空ポンプラインを配管系に用
いることが特に必要である。 The upper end of the pipe 31 is inserted into the suction mechanism 4 through the opening 41 of the top link 29 as shown in FIG.
2, and the suction mechanism 42 is connected to the switching valve 3.
It is connected via a switching valve 39 to an ejector 38 which supplies high pressure water (3 to 21 Kg/cm 2 ) via a switch 7.
A vacuum pump can be used in addition to a water ejector. When using special valves 11, it is especially necessary to use this water ejector or vacuum pump line in the piping system.
上記のようにタイヤ加硫機におけるガス抜き装
置を構成すれば、ブラダー８の組立時に特殊バル
ブ１１と必要によりガス抜きホース２０をセツテ
イングする一方、センターポストにブラダー組立
体を装着した時にブラダー８外で、ニツプル１
２，１７、導管２７、弁座シート１５、弁体３
２、配管３１等をセツテイングできるので、セツ
テイング作業が容易である。 If the gas venting device in the tire vulcanizer is configured as described above, the special valve 11 and the gas venting hose 20 can be set when the bladder 8 is assembled, and the bladder 8 can be removed when the bladder assembly is attached to the center post. So, nipple 1
2, 17, conduit 27, valve seat 15, valve body 3
2. Since the piping 31 etc. can be set, the setting work is easy.
そして、シリンダによりトツプリンク２９を下
降させると、上型２８とともに配管３１、弁体３
２等も下降し、上型２７は下型（図示せず。）と
合致すると共に、弁体３２はセンターポスト２の
弁座シート１５に当接し、コイルばね３５の附勢
力に抗して上方に逃げつつ（即ち、加硫機の締付
力がセンターポスト側に伝達されないようになつ
ている）弁座シート１５に圧接して気密に連結さ
れて、ジヨイントを完成する。つまり、加硫機が
開のときは弁座シートと弁体３２はジヨイントせ
ず、閉のときに両者はジヨイントする。尚、弁座
シートや弁体は高温高圧に耐える構造とする。 Then, when the top link 29 is lowered by the cylinder, the upper die 28, the piping 31, and the valve body 3
The second class also descends, and the upper mold 27 meets the lower mold (not shown), and the valve body 32 contacts the valve seat 15 of the center post 2 and moves upward against the biasing force of the coil spring 35. The valve seat 15 is pressed against the valve seat 15 and connected airtightly (in other words, the tightening force of the vulcanizer is not transmitted to the center post side), thereby completing the joint. That is, when the vulcanizer is open, the valve seat and the valve body 32 are not jointed, but when the vulcanizer is closed, they are jointed. The valve seat and valve body shall be constructed to withstand high temperature and pressure.
つぎに、ブラダー８内のガス抜き工程時（即ち
ガス工程より冷却水工程へ切換時）、切替弁３７，
３９を開にしてエゼクター３８に高圧水を供給す
ると、エゼクター３８の吸引力により、ガス抜き
ホース２０→特殊バルブ１１→ニツプル１２→導
管２７→ニツプル１７→弁座シート１５→弁体３
２→配管３１→切替弁３９を介してガスが迅速か
つ充分に抜かれるようになり、タイヤの加熱、冷
却が均一化して加硫不足が事前に防止できる。 Next, during the degassing process in the bladder 8 (that is, when switching from the gas process to the cooling water process), the switching valve 37,
39 is opened and high pressure water is supplied to the ejector 38, the suction force of the ejector 38 causes the gas venting hose 20 → special valve 11 → nipple 12 → conduit 27 → nipple 17 → valve seat 15 → valve body 3
Gas can be quickly and sufficiently discharged via 2→piping 31→switching valve 39, heating and cooling of the tire can be made uniform, and insufficient vulcanization can be prevented in advance.
上記特殊バルブ１１は、スチームやガスなどの
加硫媒体がブラダー内でシヤツトアウトされるの
で、ブラダー外部の配管からスチームやガスが漏
れでる恐れはなくなる。 Since the special valve 11 shuts out the vulcanizing medium such as steam or gas inside the bladder, there is no possibility that steam or gas will leak out from the piping outside the bladder.
なお、切替弁３９の切替制御を行なえば、特に
特殊バルブ１１を設ける必要はない。即ち特殊バ
ルブを用いないときは、切替弁３９でスチームや
ガスが閉止されることになる。 Note that if the switching control of the switching valve 39 is performed, there is no need to provide the special valve 11. That is, when the special valve is not used, the switching valve 39 closes off steam and gas.
以上の説明からも明らかなように、本発明は、
上部リングのガス抜き通路とセンターポストの弁
座シートの通路とを導管で連結し、トツプリンク
で案内される配管に、弁座シートに付勢力で当接
可能な弁体を設けたものであるから、配管の吸引
機構によりガス抜き通路からブラダー内のガスを
迅速かつ充分に排出することができるのみなら
ず、ガス抜きのためのブラダーセツテイングを主
にブラダー外部で行えるものであるから、セツテ
イング作業が非常に容易になる。 As is clear from the above explanation, the present invention
The gas vent passage in the upper ring and the passage in the valve seat seat of the center post are connected by a conduit, and the piping guided by the top link is provided with a valve body that can come into contact with the valve seat seat with a biasing force. Therefore, the suction mechanism in the piping not only allows the gas in the bladder to be quickly and sufficiently discharged from the gas vent passage, but also allows the bladder setting for gas venting to be performed mainly outside the bladder. Work becomes much easier.
さらに、ガス抜き通路に特殊バルブを使用する
と、ブラダー外部配管にスチームやガスが常時通
ることがないから漏れのおそれがなく、又、配置
条件もそれだけマイルドでよいことになる。 Furthermore, if a special valve is used in the gas vent passage, steam or gas will not always pass through the bladder external piping, so there is no risk of leakage, and the arrangement conditions can be made that much milder.
第１図は従来のタイヤ加硫機のガス抜き装置の
断面図、第２図は本発明に係るタイヤ加硫機のガ
ス抜き装置の断面図、第３図は特殊バルブの断面
図、第４図は吸引機構の側面図である。
２……センターポスト、３……上部リング、８
……ブラダー、１１……特殊バルブ、１３……ガ
ス抜き通路、１５……弁座シート、２０……ガス
抜きホース、２１……バルブスピンドル、２６…
…コイルばね、２７……導管、２９……トツプリ
ンク、３１……配管、３２……弁体、３４……ル
ーズボルト、３５……コイルばね、３７，３９…
…切替弁、３８……エゼクター、４２……吸引機
構。
FIG. 1 is a sectional view of a conventional tire vulcanizer gas venting device, FIG. 2 is a sectional view of a tire vulcanizer gas venting device according to the present invention, FIG. 3 is a sectional view of a special valve, and FIG. The figure is a side view of the suction mechanism. 2... Center post, 3... Upper ring, 8
...Blader, 11...Special valve, 13...Gas venting passage, 15...Valve seat, 20...Gas venting hose, 21...Valve spindle, 26...
... Coil spring, 27 ... Conduit, 29 ... Top link, 31 ... Piping, 32 ... Valve body, 34 ... Loose bolt, 35 ... Coil spring, 37, 39 ...
...Switching valve, 38...Ejector, 42...Suction mechanism.
Claims (1)
グと下部リングと、センターポストとを備えた中
心機構を有するタイヤ加硫機において、 上記上部リングに少なくとも１個のガス抜き通
路を設けると共に、上記センターポストの上端部
に弁座シートを取付けて、該弁座シートの通路と
上記ガス抜き通路とを導管で連結する一方、上型
を昇降可能に案内するトツプリンクに配管を附設
し、該配管の一端部を吸引機構と連結すると共
に、該配管の他端部に上記弁座シートに付勢力で
当接可能な弁体を取付けて、上型の下降時、上記
弁体を弁座シートに当接させ、上記吸引機構によ
り上記ガス抜き通路からブラダー内のガスを排出
制御するようにしたことを特徴とするタイヤの加
硫機におけるガス抜き装置。 ２ 上記上部リングのガス抜き通路の入口に、常
時はブラダー内の圧力に打ち勝つて閉止すると共
に、上記吸引機構による吸引時は吸引力に負けて
開放する特殊バルブを設けたことを特徴とする特
許請求の範囲第１項記載のタイヤの加硫機におけ
るガス抜き装置。 ３ 上記ガス抜き通路の入口又は特殊バルブの入
口に、可撓性のガス抜きホースが取付けられてい
ることを特徴とする特許請求の範囲第１項、第２
項のいずれかに記載のタイヤ加硫機におけるガス
抜き装置。[Claims] 1. A tire vulcanizer having a central mechanism including a bladder, an upper ring and a lower ring supporting the bladder, and a center post, wherein the upper ring has at least one gas venting passage. At the same time, a valve seat seat is attached to the upper end of the center post, and a conduit connects the passage of the valve seat seat and the gas vent passage, while piping is attached to the top link that guides the upper mold so that it can rise and fall. One end of the piping is connected to a suction mechanism, and a valve element that can come into contact with the valve seat with a biasing force is attached to the other end of the piping, so that when the upper die is lowered, the valve element is A gas venting device for a tire vulcanizer, characterized in that the device is brought into contact with a valve seat and the suction mechanism controls the discharge of gas in the bladder from the gas venting passage. 2. A patent characterized in that a special valve is provided at the entrance of the gas venting passage of the upper ring, which normally closes by overcoming the pressure inside the bladder, and which opens by defeating the suction force when suction is performed by the suction mechanism. A degassing device for a tire vulcanizer according to claim 1. 3. Claims 1 and 2, characterized in that a flexible gas venting hose is attached to the inlet of the gas venting passage or the inlet of the special valve.
A degassing device in a tire vulcanizer according to any one of paragraphs.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56057689A JPS57170735A (en) | 1981-04-16 | 1981-04-16 | Degassing device in tire vulcanizer |
| KR8201635A KR860001330B1 (en) | 1981-04-16 | 1982-04-14 | Apparatus for ejecting gases of vulcanizing machine |
| GB08210925A GB2103991B (en) | 1981-04-16 | 1982-04-15 | Degassing arrangement for vulcanizing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56057689A JPS57170735A (en) | 1981-04-16 | 1981-04-16 | Degassing device in tire vulcanizer |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12236782A Division JPS5824665A (en) | 1982-07-14 | 1982-07-14 | Special valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57170735A JPS57170735A (en) | 1982-10-21 |
| JPH0144487B2 true JPH0144487B2 (en) | 1989-09-28 |
Family
ID=13062907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56057689A Granted JPS57170735A (en) | 1981-04-16 | 1981-04-16 | Degassing device in tire vulcanizer |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS57170735A (en) |
| KR (1) | KR860001330B1 (en) |
| GB (1) | GB2103991B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ289591B6 (en) * | 2000-06-06 | 2002-02-13 | ©Koda Ts A.S. | Vulcanizing press chamber |
| US6733702B2 (en) * | 2001-04-19 | 2004-05-11 | The Goodyear Tire & Rubber Company | Tire mold and a method of rapidly depressurizing the mold |
-
1981
- 1981-04-16 JP JP56057689A patent/JPS57170735A/en active Granted
-
1982
- 1982-04-14 KR KR8201635A patent/KR860001330B1/en active
- 1982-04-15 GB GB08210925A patent/GB2103991B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| KR860001330B1 (en) | 1986-09-15 |
| GB2103991B (en) | 1985-07-24 |
| JPS57170735A (en) | 1982-10-21 |
| KR830009926A (en) | 1983-12-24 |
| GB2103991A (en) | 1983-03-02 |
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