JPH0364298B2 - - Google Patents
Info
- Publication number
- JPH0364298B2 JPH0364298B2 JP59262937A JP26293784A JPH0364298B2 JP H0364298 B2 JPH0364298 B2 JP H0364298B2 JP 59262937 A JP59262937 A JP 59262937A JP 26293784 A JP26293784 A JP 26293784A JP H0364298 B2 JPH0364298 B2 JP H0364298B2
- Authority
- JP
- Japan
- Prior art keywords
- bag
- main body
- mold
- bag main
- pressure
- 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 - Lifetime
Links
Landscapes
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は、たとえばスキー板をプレス成形す
る場合に用いる加圧バツグの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method of manufacturing a pressure bag used, for example, in press-molding skis.
スキー板は、通常数枚の帯状板を重ね合せた多
層構造体であるが、このスキー板を成形する場合
には前記帯状板間に接着剤を介在し、この多層構
造体の上下方向から加圧力を与えて加熱し一体に
構成している。しかしながら、スキー板は一端部
に湾曲部が設けられているため、この湾曲に合せ
た形状を有するスキー成形型を用いても帯状板の
肉厚のバラツキ等により全体に亙つて均一に加圧
力を与えることは困難である。そこで、従来は第
９図および第１０図に示すような加圧バツグを用
い、第１１図に示すプレス型によつて加圧成型し
ている。すなわち、１は加圧バツグで、これはゴ
ムチユーブ２とその外表面に設けたジヤケツト筒
３とから構成されている。そして、この加圧バツ
グ１は全体として偏平状をなしており、この両端
部はプレート４，４によつて封止されていて、内
部に空気室５が形成されている。さらに、この加
圧バツグ１の長手方向中間部には空気室５内に空
気を供給するノズル６が設けられているととも
に、加圧バツグ１の上面には複数個の取付けボル
ト７…が設けられている。
A ski is usually a multilayer structure made of several strips stacked one on top of the other, but when forming these skis, an adhesive is interposed between the strips and the multilayer structure is applied from above and below. It is constructed in one piece by applying pressure and heating. However, since skis have a curved part at one end, even if a ski mold with a shape that matches this curvature is used, it is difficult to apply pressure uniformly over the entire body due to variations in the thickness of the strip. Giving is difficult. Therefore, conventionally, a pressure bag as shown in FIGS. 9 and 10 is used, and pressure molding is carried out using a press mold shown in FIG. 11. That is, 1 is a pressurized bag, which is composed of a rubber tube 2 and a jacket tube 3 provided on its outer surface. This pressurizing bag 1 has a flat shape as a whole, and both ends thereof are sealed by plates 4, 4, and an air chamber 5 is formed inside. Further, a nozzle 6 for supplying air into the air chamber 5 is provided in the longitudinally intermediate portion of the pressurized bag 1, and a plurality of mounting bolts 7 are provided on the upper surface of the pressurized bag 1. ing.
一方、前記プレス型８は、固定型９と可動型１
０とからなり、この両型９，１０の長手方向一端
部には湾曲部９ａ，１０ａが設けられている。そ
して、この可動型１０の下面には前記加圧バツグ
１が取付けボルト７…によつて取付けられてい
る。したがつて、加圧バツグ１の一端部は前記可
動型１０の湾曲部１０ａに沿つて曲げられてい
る。また、１１は被成型物としてのスキー板であ
り、数枚の帯状体とこれらの間に介在した接着剤
からなる。そして、このスキー板１１はあらがじ
めその一端部に湾曲部１１ａが形成されている。 On the other hand, the press mold 8 includes a fixed mold 9 and a movable mold 1.
0, and curved portions 9a, 10a are provided at one longitudinal end of both dies 9, 10. The pressure bag 1 is attached to the lower surface of the movable mold 10 with attachment bolts 7. Therefore, one end of the pressure bag 1 is bent along the curved portion 10a of the movable mold 10. Further, 11 is a ski board as a molded object, which is made up of several strips and an adhesive interposed between them. The ski 11 has a curved portion 11a formed at one end thereof.
しかして、前記スキー板１１をプレス型８によ
つて加圧成型する場合には、このスキー板１１の
上下両面にヒータ１２，１２を付けて前記固定型
９上に置く。そして、ヒータ１２，１２に通電し
てスキー板１１を加熱しながら前記可動型１０を
下降してスキー板１１をプレス成形する。このと
き、可動型１０の下面には加圧バツグ１が装着さ
れているため、可動型１０の下圧力がスキー板１
１の全体に均一に加わるようになつている。 When the ski 11 is press-molded using the press mold 8, the ski 11 is placed on the fixed mold 9 with heaters 12, 12 attached to both the upper and lower sides. Then, the movable mold 10 is lowered to press-form the ski 11 while heating the ski 11 by energizing the heaters 12, 12. At this time, since the pressure bag 1 is attached to the lower surface of the movable mold 10, the lower pressure of the movable mold 10 is applied to the ski
It is arranged so that it is applied uniformly to the whole of 1.
しかしながら、前記加圧バツグ１は偏平状に構
成されているため、この加圧バツグ１を可動型１
０の湾曲部１０ａに沿つて湾曲すると、加圧バツ
グ１の固定型９に接する周長と可動型１０に接す
る周長に差がないため第１２図に示すように湾曲
部１０ａの部分に潰れ１ａが生じ、この潰れ１ａ
よつて空気室５が遮断されるという不都合が生じ
る。したがつて、加圧バツグ１の潰れ１ａ部分に
対向するスキー板１１の一部が他の部分より弱い
加圧力となり、スキー板で最も大切な湾曲部に充
分な接着力が得られないという欠点がある。ま
た、加圧バツグ１はその潰れ１ａの部分から損傷
されやすく、耐久性がないという欠点がある。 However, since the pressure bag 1 is configured in a flat shape, the pressure bag 1 is attached to the movable mold 1.
When it is bent along the curved part 10a of the pressure bag 1, there is no difference between the circumferential length of the pressurizing bag 1 in contact with the fixed die 9 and the circumferential length in contact with the movable die 10, so that it is crushed at the curved part 10a as shown in FIG. 1a occurs, and this collapse 1a
This causes the inconvenience that the air chamber 5 is blocked. Therefore, the part of the ski 11 facing the collapsed part 1a of the pressure bag 1 receives a weaker pressure than other parts, and the disadvantage is that sufficient adhesion cannot be obtained at the most important curved part of the ski. There is. Further, the pressurized bag 1 is easily damaged at its collapsed portion 1a, and has the disadvantage of lack of durability.
この発明は、前記事情に着目してなされたもの
で、その目的とするところは、被成型物がスキー
板のように湾曲部を有するものであつても、均一
に加圧力を与えることができる湾曲部を有する加
圧バツグを容易に製造することができる加圧バツ
グの製造方法を提供することにある。
This invention was made in view of the above-mentioned circumstances, and its purpose is to be able to apply pressure uniformly even if the object to be molded has a curved part, such as a ski. It is an object of the present invention to provide a method for manufacturing a pressurized bag that can easily manufacture a pressurized bag having a curved portion.
この発明は、前記目的を達成するために、エラ
ストマーチユーブを繊維からなるジヤケツト筒に
引込みバツグ主体を形成しその両端部を封止する
とともに、このバツグ主体を、湾曲部を有するプ
リフオーム型の上型と下型との間に介在しこのバ
ツグ主体内を加圧しながら加熱して冷却し、湾曲
部を有する加圧バツグを製造することにある。
In order to achieve the above object, the present invention involves drawing an elastomeric tube into a jacket tube made of fibers to form a bag main body, sealing both ends of the bag main body, and converting the bag main body into a preform-type upper mold having a curved portion. The main body of the bag is heated and cooled while pressurizing the inside of the bag, which is interposed between the bag body and the lower die, to produce a pressurized bag having a curved portion.
以下、この発明の一実施例を図面に基づいて説
明する。
Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図は加圧バツグの製造方法を示すもので、
２１は加硫ゴムチユーブである。ここの加硫ゴム
チユーブ２１の外表面に末加硫ゴムを貼り合せる
が、この貼り合せ工程は、末加硫ゴムシート上に
前記加硫ゴムチユーブ２１を置き、この加硫ゴム
チユーブ２１を末加硫ゴムシートによつて包み、
その後ハンドローラによつて圧着する。このよう
にして加硫ゴムチユーブに末加硫ゴムシートを貼
り合せたのち、ジヤケツト筒２２内にこれを引込
む。このジヤケツト筒２２は、ナイロンなどの合
成繊維によつて形成されており、ゴムチユーブ２
１とジヤケツト筒２２との二重構造のバツグ主体
２３が形成される。 Figure 1 shows the method for manufacturing pressurized bags.
21 is a vulcanized rubber tube. The vulcanized rubber tube 21 is bonded to the outer surface of the vulcanized rubber tube 21. In this bonding process, the vulcanized rubber tube 21 is placed on a vulcanized rubber sheet, and the vulcanized rubber tube 21 is attached to the vulcanized rubber sheet. wrapped in a sheet,
After that, it is crimped using a hand roller. After the unvulcanized rubber sheet is bonded to the vulcanized rubber tube in this manner, it is drawn into the jacket tube 22. This jacket tube 22 is made of synthetic fiber such as nylon, and the rubber tube 22 is made of synthetic fiber such as nylon.
1 and a jacket tube 22 form a bag main body 23 having a double structure.
つぎに、バツグ主体２３の長手方向両端部に封
止治具２４，２４を取付け、この封知止治具２
４，２４によつてバツグ主体２３を封止するとと
もに、一方の封止治具２４に蒸気供給ノズル２５
を装着する。このように、両端部が封止治具２
４，２４によつて封止されたバツグ主体２３をプ
リフオーム加硫型２６にセツトしてバツグ主体２
３加硫する。このプリフオーム加硫型２６は、第
２図および第３図に示すように、下型２７と上型
２８およびこれら両型２７，２８を一定の間隔に
保持する間隔板２９とから構成されている。そし
て、この下型２７は平板状をなす下型主体３０の
一端部に立上り部３１が設けられ、この立上り部
３１には前記下型主体３０の上面３０ａと連続す
る円弧状の湾曲部３２が形成されている。また、
前記上型２８も平板状をなす上型主体３３の一端
部に立上り部３４が設けられ、この立上り部３４
には前記上型主体３３の下面３３ａと連続する円
弧状の湾曲部３５が形成されている。そして、下
型２７と上型２８との上面３０ａと下面３３ａと
は対向しているとともに、湾曲部３２と３５とが
対向している。さらに、この下型２７と上型２８
はクランプ機構３６によつて上下方向からクラン
プされるようになつているが、下型２７と上型２
８との間の長手方向に沿う両側縁は開口してい
る。 Next, sealing jigs 24 are attached to both ends of the bag main body 23 in the longitudinal direction.
4, 24 to seal the bag main body 23, and one sealing jig 24 is equipped with a steam supply nozzle 25.
Attach. In this way, both ends are attached to the sealing jig 2.
The bag main body 23 sealed by 4 and 24 is set in the preform vulcanization mold 26, and the bag main body 2
3. Vulcanize. As shown in FIGS. 2 and 3, this preform vulcanization mold 26 is composed of a lower mold 27, an upper mold 28, and a spacing plate 29 that holds both molds 27 and 28 at a constant distance. . This lower mold 27 is provided with a rising portion 31 at one end of a flat plate-shaped lower mold main body 30, and this rising portion 31 has an arc-shaped curved portion 32 that is continuous with the upper surface 30a of the lower mold main body 30. It is formed. Also,
The upper die 28 is also provided with a rising portion 34 at one end of the upper die main body 33 which is in the form of a flat plate.
An arc-shaped curved portion 35 that is continuous with the lower surface 33a of the upper mold main body 33 is formed in the upper mold main body 33. The upper surface 30a and the lower surface 33a of the lower mold 27 and the upper mold 28 are opposed to each other, and the curved parts 32 and 35 are opposed to each other. Furthermore, this lower mold 27 and upper mold 28
is designed to be clamped from above and below by a clamp mechanism 36, but the lower die 27 and the upper die 2
Both edges along the longitudinal direction between 8 and 8 are open.
このように構成されたプリフオーム加硫型２６
を使用して前記バツグ主体２３を加硫する場合に
は、まず上型２８を取外して下型２７の上面３０
ａにバツグ主体２３を置く。そして、このバツグ
主体２３の一端部を湾曲部３２に沿わせる。つぎ
に、このバツグ主体２３の上面に上型２８を置
き、バツグ主体２３を下型２７と上型２８との間
で挟持する。このとき、下型２７と上型２８との
間隔は間隔板２９…によつて一定に保持されるた
め、前記クランプ機構３６によつて上下方向から
クランプしてもバツグ主体２３に対する加圧力は
全体に亙つて均一となり、バツグ主体２３の耳部
２３ａ，２３ａのみがフリーとなる。この状態
で、前記蒸気供給ノズル２５からバツグ主体２３
内に空気を供給してプリフオーム加硫型２６内で
空気圧力によつて馴染ませる。つぎに、バツグ主
体２３内の圧力を低下させないように前記蒸気供
給ノズル２５から蒸気を供給して空気と置換させ
る。このように、バツグ主体２３内に蒸気を供給
すると、バツグ主体２３はその圧力によつて膨張
するため、上面および下面が前記下型２７および
上型２８に密着した状態で加硫される。したがつ
て、下型２７および上型２８の湾曲部３２，３５
間に位置する前記バツグ主体２３の下面側におい
ては伸ばされて大きくなつたジヤケツトの織り目
に末加硫ゴムが入り込み、その状態で加硫接着さ
れるとともに、上面側においては余分になつたジ
ヤケツトが熱収縮により縮む。したがつて、バツ
グ主体２３の一端部にプリフオーム加硫型２６の
形状に沿つた湾曲部２３ｂが成型される。このよ
うにして一定時間加硫したのち、バツグ主体２３
内の圧力を低下させないで、前記蒸気供給ノズル
２５から冷却水を供給してバツグ主体２３を冷却
する。したがつて、湾曲部を有するバツグ主体２
３が得られる。 Preform vulcanization mold 26 configured in this way
When curing the bag main body 23 using a
Place the bug body 23 on a. Then, one end of the bag main body 23 is placed along the curved portion 32. Next, an upper mold 28 is placed on the upper surface of the bag main body 23, and the bag main body 23 is held between the lower mold 27 and the upper mold 28. At this time, the distance between the lower mold 27 and the upper mold 28 is maintained constant by the spacing plates 29, so even if the clamp mechanism 36 clamps from above and below, the entire pressing force against the bag main body 23 is It becomes uniform throughout, and only the ears 23a, 23a of the bag main body 23 become free. In this state, from the steam supply nozzle 25 to the bag main body 23
Air is supplied into the preform vulcanization mold 26 and the preform is blended by air pressure. Next, steam is supplied from the steam supply nozzle 25 to replace air so as not to reduce the pressure inside the bag main body 23. In this way, when steam is supplied into the bag main body 23, the bag main body 23 expands due to the pressure, so that the bag main body 23 is vulcanized with its upper and lower surfaces in close contact with the lower mold 27 and the upper mold 28. Therefore, the curved portions 32 and 35 of the lower mold 27 and the upper mold 28
On the lower surface side of the bag main body 23 located in between, the unvulcanized rubber enters the texture of the stretched and enlarged jacket, and is vulcanized and bonded in that state, while on the upper surface side, the excess jacket is removed. Shrinks due to heat shrinkage. Therefore, a curved portion 23b that follows the shape of the preform vulcanization mold 26 is formed at one end of the bag main body 23. After vulcanizing in this way for a certain period of time, the main body of the bug 23
Cooling water is supplied from the steam supply nozzle 25 to cool the bag main body 23 without reducing the internal pressure. Therefore, the bug main body 2 having a curved part
3 is obtained.
つぎに、前記バツグ主体２３をプリフオーム加
硫型２６から取外し、そのバツグ主体２３から封
止治具２４，２４を取外す。そして、第４図から
第８図に示すように、前記バツグ主体２３の上面
の所定位置に取付け孔３７…を明け、一個の空気
供給ノズル３８と複数個の取付けボルト３９…を
取付ける。さらに、バツグ主体２３の両端部の内
面を溶剤で拭き、離型剤を除去したのち糊シート
４０を介在する。さらに、バツグ主体２３の両端
部の上下面に糊シート４０，４０を介してプレー
ト４１，４１を接合する。そして、これら、プレ
ート４１，４１をボルトナツトなどの固定具４２
によつて連結し、バツグ主体２３の両端部を封止
する。 Next, the bag main body 23 is removed from the preform vulcanization mold 26, and the sealing jigs 24, 24 are removed from the bag main body 23. As shown in FIGS. 4 to 8, mounting holes 37 are formed at predetermined positions on the upper surface of the bag main body 23, and one air supply nozzle 38 and a plurality of mounting bolts 39 are mounted. Further, the inner surfaces of both ends of the bag main body 23 are wiped with a solvent to remove the mold release agent, and then a glue sheet 40 is interposed. Further, plates 41, 41 are joined to the upper and lower surfaces of both ends of the bag main body 23 via glue sheets 40, 40. Then, these plates 41, 41 are fixed with fixing tools 42 such as bolts and nuts.
and seal both ends of the bag main body 23.
したがつて、バツグ主体２３の両端部が封止さ
れ、一端部に湾曲部を有した加圧バツグが構成さ
れ、この加圧バツグは前述したプレス型の可動型
１０に取付けることにより、スキー板の成型に供
することができる。 Therefore, both ends of the bag main body 23 are sealed, forming a pressurized bag having a curved portion at one end, and this pressurized bag can be attached to the above-mentioned press-type movable mold 10 to press the ski. It can be used for molding.
以上説明したように、この発明によれば、エラ
ストマーチユーブを繊維からなるジヤケツト筒に
引込みバツグ主体を形成しその両端部を封止する
とともに、このバツグ主体を、湾曲部を有するプ
リフオーム型の上型と下型との間に介在しこのバ
ツグ主体を加圧しながら加熱して冷却し、湾曲部
を有する加圧バツグを製造することにより、被成
型物がスキー板のように湾曲部を有するものであ
つても、全体に亙つて均一に加圧成形することが
できる加圧バツグを製造することができるという
効果を奏する。
As explained above, according to the present invention, an elastomeric tube is drawn into a jacket tube made of fibers to form a bag main body and both ends of the bag body are sealed, and the bag main body is formed into a preform upper mold having a curved portion. By heating and cooling the main body of the bag, which is interposed between the mold and the lower mold, while pressurizing it, and producing a pressurized bag with a curved part, the molded object can be molded with a curved part like a ski. Even if there is a problem, it is possible to produce a pressure bag that can be pressure-molded uniformly over the entire area.
第１図から第８図はこの発明の一実施例を示す
もので、第１図ａ〜ｄは製造方法の説明図、第２
図はプリフオーム加硫型の側面図、第３図は同じ
く平面図、第４図は成型された加圧バツグの側面
図、第５図は加圧バツグの平面図、第６図は第５
図の−線に沿う断面図、第７図は第５図の
−線に沿う断面図、第８図は第５図の−線
に沿う断面図、第９図は従来の加圧バツグの側面
図、第１０図は同じく平面図、第１１図はプレス
型の分解した側面図、第１２図は従来の加圧バツ
グの潰れた状態を示す側面図である。
２１……エラストマーチユーブ、２２……ジヤ
ケツト筒、２３……バツグ主体、２６……プリフ
オーム型。
1 to 8 show one embodiment of the present invention, and FIGS. 1a to d are explanatory diagrams of the manufacturing method, and FIGS.
The figure is a side view of the preform vulcanization mold, FIG. 3 is a plan view, FIG. 4 is a side view of the molded pressure bag, FIG.
7 is a sectional view taken along the - line in FIG. 5, FIG. 8 is a sectional view taken along the - line in FIG. 5, and FIG. 9 is a side view of a conventional pressure bag. FIG. 10 is a plan view, FIG. 11 is an exploded side view of the press mold, and FIG. 12 is a side view of a conventional press bag in a collapsed state. 21... Elastomer tube, 22... Jacket tube, 23... Bag main body, 26... Preform type.
Claims (1)
維からなるジヤケツト筒に入れ、その両端部を封
止してバツグ主体を形成し、このバツグ主体を、
湾曲部を有するプリフオーム型の上型と下型との
間に介在し、このバツグ主体内を加圧しながら加
熱し前記接着性を有するチユーブ状エラストマー
をジヤケツト筒の織り目に入り込ませ、湾曲部を
有する加圧バツグを成形することを特徴とする加
圧バツグの製造方法。1 A tubular elastomer with adhesive properties is placed in a jacket made of fibers, both ends of which are sealed to form a bag main body, and this bag main body is
The tube-like elastomer, which is interposed between the upper mold and the lower mold of the preform mold having a curved portion, is heated while pressurizing the inside of the bag main body, and has the adhesive property and enters the weave of the jacket tube, and has the curved portion. A method for manufacturing a pressurized bag, characterized by molding the pressurized bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59262937A JPS61141549A (en) | 1984-12-14 | 1984-12-14 | Manufacture of pressing bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59262937A JPS61141549A (en) | 1984-12-14 | 1984-12-14 | Manufacture of pressing bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61141549A JPS61141549A (en) | 1986-06-28 |
| JPH0364298B2 true JPH0364298B2 (en) | 1991-10-04 |
Family
ID=17382642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59262937A Granted JPS61141549A (en) | 1984-12-14 | 1984-12-14 | Manufacture of pressing bag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61141549A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT522552B1 (en) | 2019-04-15 | 2023-10-15 | Typs Gmbh | Mold set for a ski press |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5242575A (en) * | 1975-10-02 | 1977-04-02 | Sakura Rubber | Method of making fire hydrant hose with reflecting tape |
| JPS5351280A (en) * | 1976-10-21 | 1978-05-10 | Tokai Rubber Ind Ltd | Method of forming thin outer rubber layer on outer surface of armed blade hose |
-
1984
- 1984-12-14 JP JP59262937A patent/JPS61141549A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61141549A (en) | 1986-06-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |