JPH0615206B2 - Mouth forming mold - Google Patents
Mouth forming moldInfo
- Publication number
- JPH0615206B2 JPH0615206B2 JP60133688A JP13368885A JPH0615206B2 JP H0615206 B2 JPH0615206 B2 JP H0615206B2 JP 60133688 A JP60133688 A JP 60133688A JP 13368885 A JP13368885 A JP 13368885A JP H0615206 B2 JPH0615206 B2 JP H0615206B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- peripheral surface
- flange
- diameter
- outer peripheral
- 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
Classifications
-
- 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
- B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
- B29C57/02—Belling or enlarging, e.g. combined with forming a groove
- B29C57/04—Belling or enlarging, e.g. combined with forming a groove using mechanical means
-
- 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
- B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
- B29C57/02—Belling or enlarging, e.g. combined with forming a groove
- B29C57/08—Belling or enlarging, e.g. combined with forming a groove using pressure difference
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2024/00—Articles with hollow walls
- B29L2024/006—Articles with hollow walls multi-channelled
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、管壁内に管軸方向に連通した通孔を多数有す
る合成樹脂管（以下、単に「ホール管」という）の端部
に拡径受口を成形する受口成形金型に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an end portion of a synthetic resin pipe (hereinafter, simply referred to as “hole pipe”) having a large number of through holes communicating in the pipe axial direction in a pipe wall. The present invention relates to a mouthpiece molding die for molding a diameter-enlarged mouthpiece.
（従来の技術とその課題） 従来から地中埋設用の下水配管として、合成樹脂管の管
壁内に通孔を連通させたホール管が使用されている。(Prior Art and Its Problems) Conventionally, as a sewer pipe for underground burial, a hole pipe in which a through hole is made to communicate with a pipe wall of a synthetic resin pipe has been used.
ところで、このホール管の端部には拡径受口を成形する
場合、管壁内に通孔を有しない通常の合成樹脂管と同様
にして受口を成形すると、第５図に要部断面図で示した
如く、受口外周面に凹凸ができたことがあった。この凹
凸は、ホール管Ｐ２の端部に内型を圧入して径方向に拡
開したとき、通孔ａが存在する部分の外壁が径方向に引
き伸ばされて凹むとによって発生するものであって、受
口外周面に凹凸が縞状となって現われると非常に外観が
悪くなり、商品価値を著しく低下させるという問題があ
った。By the way, when forming an expanded diameter receiving port at the end of this hole pipe, if the receiving port is formed in the same manner as a normal synthetic resin pipe that does not have a through hole in the pipe wall, the cross section of the main part is shown in FIG. As shown in the figure, irregularities were sometimes formed on the outer peripheral surface of the receptacle. This unevenness is generated when the inner mold is press-fitted into the end portion of the hole pipe P2 and is expanded in the radial direction, the outer wall of the portion where the through hole a is present is radially expanded and recessed. However, if unevenness appears in a striped pattern on the outer peripheral surface of the receiving port, the appearance is extremely deteriorated, and there is a problem that the commercial value is significantly reduced.
本発明はかかる課題を解決したものであって、受口外周
面に凹凸が発生せず、外観が優れた拡径受口をホール管
の端部に成形することができる受口成形金型を提供する
ものである。The present invention is to solve the above-mentioned problems, in which unevenness does not occur on the outer peripheral surface of the receiving opening, and a receiving opening molding die capable of molding a diameter-enhancing receiving opening having an excellent appearance at the end of the hole pipe. It is provided.
（課題を解決するための手段） 本発明の受口成形金型は、加熱軟化した管端部に圧入し
て拡径受口を成形するための拡大部を備えた内型と、拡
径した受口外周面を所定の空間部をもって気密にに包囲
する外型とからなっている。そして、前記外型は拡径受
口の外径よりも大きい内径を有する筒体の一端部に受口
後端部近傍の管外周面に密接するフランジと、その他端
部に受口先端部の管外周面に密接するフランジとを有
し、また前記筒体に真空ポンプと接続したホースを接合
した構成からなり、管端部に拡径受口を成形したのち受
口外周面を外型で気密に包囲し、該外型内を減圧して受
口の管壁内に存在している通孔の外壁を外周側に膨出さ
せるようになしたことを特徴とする。(Means for Solving the Problem) The mouthpiece molding die of the present invention has an inner mold having an enlarged portion for press-fitting into a heat-softened pipe end portion to form a diameter-enlarged mouthpiece, and an enlarged diameter. The outer die is configured to hermetically surround the outer peripheral surface of the receptacle with a predetermined space. The outer mold has a flange that is in close contact with the outer peripheral surface of the pipe in the vicinity of the rear end of the receiving end at one end of the tubular body having an inner diameter that is larger than the outer diameter of the receiving end, and the tip of the receiving end at the other end. It has a flange that is in close contact with the outer peripheral surface of the pipe, and is composed of a hose connected to a vacuum pump connected to the cylindrical body. It is characterized in that it is airtightly enclosed, the inside of the outer mold is decompressed, and the outer wall of the through hole existing in the tube wall of the receiving port bulges toward the outer peripheral side.
（作 用） 上記の構成からなるので、ホール管の端部を拡径して受
口を成形した後、受口外周面を外型で気密に包囲して該
外型内を減圧すると、通孔が存在している部分の外壁が
外周側に膨み、受口外周面が平滑な円弧面となる。(Operation) Since it has the above-mentioned configuration, after the end portion of the hole pipe is expanded in diameter to form the receiving port, the outer peripheral surface of the receiving port is airtightly enclosed by the outer mold, and the pressure inside the outer mold is reduced. The outer wall of the portion where the holes are present bulges toward the outer peripheral side, and the outer peripheral surface of the receiving port becomes a smooth arc surface.
（実施例 １） 第１図は本発明の一実施例を示す受口成形金型の縦断面
図、第２図は第１図のII−II線断面図であって、図中符
号Ａは内型、Ｂは外型である。(Embodiment 1) FIG. 1 is a longitudinal sectional view of a mouthpiece molding die showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. Inner mold, B is outer mold.
Ｐ２は塩化ビニル樹脂等からなるホール管であって、該
ホール管Ｐ２の管壁内には管軸方向に連通した多数の通
孔ａが設けられている。P2 is a hole pipe made of vinyl chloride resin or the like, and a large number of through holes a communicating in the pipe axis direction are provided in the wall of the hole pipe P2.
内型Ａは拡大部１とコア部材２とからなり、拡大部１に
はコア部材２が出没自在に内蔵されている。また、コア
部材２は第２図に示した如く第１分割コア２１と、第２
分割コア２２とからなり、これら分割コア２１，２２は
交互に配設されてテーパ部材３の傾斜面と蟻溝嵌合して
いる。The inner mold A includes an enlarged portion 1 and a core member 2, and a core member 2 is built in the enlarged portion 1 so as to be retractable. The core member 2 includes a first split core 21 and a second split core 21 as shown in FIG.
The divided cores 22 and 22 are arranged alternately and are fitted in the dovetail groove with the inclined surface of the taper member 3.
また、前記拡大部１の先端にはホール管Ｐ２の内径とほ
ぼ等しい外径を有する案内部が設けられており、この拡
大部１の後方に配設された油圧シリンダー（図示せず）
ににはロッド３１を介してテーパ部材３が接続してい
る。Further, a guide portion having an outer diameter substantially equal to the inner diameter of the hole pipe P2 is provided at the tip of the enlarged portion 1, and a hydraulic cylinder (not shown) arranged behind the enlarged portion 1
The taper member 3 is connected to this via a rod 31.
従って、油圧シリンダーを作動させるとテーパ部材３が
管軸方向に移動し、該テーパ部材３の傾斜面と蟻溝嵌合
した分割コア２１，２２が径方向に拡大・縮小して拡大
部１の外周面から出没するようになっている。Therefore, when the hydraulic cylinder is actuated, the taper member 3 moves in the pipe axis direction, and the split cores 21 and 22 fitted in the inclined surface of the taper member 3 in the dovetail groove are expanded and contracted in the radial direction to expand and contract the expanded portion 1. It appears to appear and disappear from the outer peripheral surface.
一方、外型Ｂは前記内型Ａによって成形される拡径受口
の外径より大きい内径を有する筒体５の端部内周面にフ
ランジ５１，５２を突設した構成からなり、前記筒体５
には真空ポンプ（図示せず）と接続したホース５３が接
合している。On the other hand, the outer mold B is formed by projecting flanges 51 and 52 on the inner peripheral surface of the end portion of the cylindrical body 5 having an inner diameter larger than the outer diameter of the enlarged diameter receiving opening formed by the inner mold A. 5
A hose 53 connected to a vacuum pump (not shown) is joined to the.
この外型Ｂは径方向に対して複数個に分割できるように
なっており、筒体５およびフランジ５１，５２のそれぞ
れの分割面にはゴム等のシール部材が装着されている。
また、前記フランジ５１，５２の内周円弧面にもゴム等
のシール部材が装着されており、第１図に示した如く外
型Ｂを型閉めした状態では、フランジ５１の内周円弧面
が受口後端部近傍の管外周面に密接すると共に、フラン
ジ５２の内周円弧面が受口先端部の管外周面に密接し、
外型Ｂと受口外周面との間に気密に包囲された空間部が
形成されるようになっている。The outer mold B can be divided into a plurality of pieces in the radial direction, and a seal member such as rubber is attached to each divided surface of the cylindrical body 5 and the flanges 51 and 52.
Further, a sealing member such as rubber is also mounted on the inner peripheral arc surfaces of the flanges 51 and 52, and when the outer mold B is closed as shown in FIG. While closely contacting the outer peripheral surface of the pipe in the vicinity of the rear end of the receiving port, the inner peripheral arc surface of the flange 52 closely contacts the outer peripheral surface of the pipe at the front end of the receiving port,
An airtightly enclosed space is formed between the outer mold B and the outer peripheral surface of the receptacle.
尚、外型Ｂは筒体５及びフランジ５１，５２の全体をゴ
ム等の弾性体で形成してもよい。In the outer mold B, the tubular body 5 and the flanges 51 and 52 may be entirely formed of an elastic body such as rubber.
本実施例の成形金型は上記の構成からなるものであっ
て、この金型を用いてホール管Ｐ２の端部にゴム輪型受
口を成形する工程を説明する。The molding die of this embodiment has the above-mentioned structure, and a step of molding the rubber ring die receiving port at the end portion of the hole pipe P2 using this die will be described.
まず、ホール管Ｐ２の一端部を加熱ヒータ等を用いて加
熱軟化する。次いで、第１図の上半図に示した如く管端
部に内型Ａを圧入して拡大部１で拡径受口を形成する。
そこで、テーパ部材３を図中の内側に移動させると、同
図の下半図に示した如く拡大部１の外周面からコア部材
２が突出してゴム輪装着用溝が成形される。First, one end of the hole tube P2 is heated and softened by using a heater or the like. Then, as shown in the upper half of FIG. 1, the inner mold A is press-fitted into the pipe end portion to form the enlarged diameter receiving port in the enlarged portion 1.
Therefore, when the taper member 3 is moved inward in the drawing, the core member 2 projects from the outer peripheral surface of the enlarged portion 1 to form a rubber wheel mounting groove as shown in the lower half of the drawing.
尚、この成形工程において、予のコア部材２を拡大部１
の外周面から突出させておいてから、この内型Ａをホー
ル管Ｐ２の端部に圧入して受口の成形と同時にゴム輪装
着用溝を膨出成形してもよい。In this molding step, the preliminary core member 2 is attached to the enlarged portion 1
It is also possible to project the inner mold A into the end portion of the hole pipe P2 after projecting it from the outer peripheral surface, and to bulge the rubber wheel mounting groove at the same time as molding the receptacle.
このようにしてホール管Ｐ２の端部に拡径受口を成形し
た後、受口外周面を外型Ｂで気密に包囲し、真空ポンプ
を作動させて外型Ｂと受口外周面との間の空間部を減圧
する。すると、受口外周面と通孔ａ内との圧力差によっ
て受口を成形したときに凹んだ外壁が外周方向に膨み、
受口外周面が凹凸のない平滑な円弧面となる。In this way, after forming the expanded receiving port at the end portion of the hole pipe P2, the outer peripheral surface of the receiving port is airtightly surrounded by the outer mold B, and the vacuum pump is operated to operate the outer mold B and the outer peripheral surface of the receiving port. The space between them is depressurized. Then, due to the pressure difference between the outer peripheral surface of the receiving opening and the inside of the through hole a, the outer wall which is recessed when the receiving opening is formed swells in the outer peripheral direction,
The outer peripheral surface of the receiving port becomes a smooth circular arc surface without unevenness.
（実施例 ２） 第３図はホール管Ｐ２の端部に接着型受口を成形する場
合に使用する本発明の他の実施例を示す成形金型の縦断
面図であって、内型Ａは拡大部１のみからなり、外型Ｂ
は前記実施例１の構成に若干の変更を加えて筒体５とフ
ランジ５２とを別体構造としたものである。(Embodiment 2) FIG. 3 is a vertical cross-sectional view of a molding die showing another embodiment of the present invention which is used when an adhesive type receptacle is formed at the end of the hole pipe P2. Is only the expansion part 1
Is a structure in which the tubular body 5 and the flange 52 are separated from each other by slightly modifying the configuration of the first embodiment.
即ち、フランジ５２は押型５２２の片面にゴム弾性体５
２１を装着した構成からななり、油圧シリンダー（図示
せず）と接続したロッド５２３を押型５２２に接続して
フランジ５２を前進させたとき、弾性体５２１を筒体５
の端部に密接させるようにしたものである。That is, the flange 52 has the rubber elastic body 5 on one side of the pressing die 522.
When the rod 523 connected to the hydraulic cylinder (not shown) is connected to the pressing die 522 and the flange 52 is advanced, the elastic body 521 is moved to the cylindrical body 5.
It is designed to be in close contact with the end of.
一方、筒体５とフランジ５１は一体構造で、径方向に分
割できるようになっている。そして、フランジ５１の内
周円弧面には受口後端部近傍の管外周面と密接するシー
ル部材５１１が装着されている。On the other hand, the tubular body 5 and the flange 51 have an integrated structure and can be divided in the radial direction. A seal member 511 is attached to the inner peripheral arc surface of the flange 51 so as to come into close contact with the outer peripheral surface of the pipe in the vicinity of the rear end of the receiving opening.
本実施例の場合、加熱軟化したホール管Ｐ２の端部に内
型Ａを圧入して拡大部１で拡径受口を成形した後、受口
外周面を外型Ｂで気密に包囲して該外型Ｂと受口外周面
との間の空間部を減圧すると、前記実施例と同様に受口
外周面が凹凸のない平滑な円弧面となる。In the case of the present embodiment, the inner die A is press-fitted into the end portion of the hole pipe P2 that has been softened by heating to form a diameter-enlarged receptacle in the enlarged portion 1 and then the outer peripheral surface of the receptacle is airtightly surrounded by the outer die B. When the space between the outer mold B and the outer peripheral surface of the receiving opening is decompressed, the outer peripheral surface of the receiving opening becomes a smooth circular arc surface having no unevenness, as in the above-described embodiment.
（実施例 ３） 第４図は更に発明の他の実施例を示す受口成形金型の縦
断面図であって、内型Ａは前記実施例１と同様な構成か
らなり、外型Ｂに若干の変更を加えたものである。(Embodiment 3) FIG. 4 is a vertical cross-sectional view of a mouthpiece molding die showing still another embodiment of the invention, in which the inner die A has the same structure as that of the first embodiment, and the outer die B is It is a minor change.
即ち、本実施例の外型Ｂは、筒体５の一端部に設けたフ
ランジ５１に複数枚のゴム弾性体を重ね合わせたもので
あって、該ゴム弾性体を受口後端部近傍の管外周面に密
接させて気密を保持できるようにしたものである。他方
のフランジ５２は前記実施例２と同様な構成からなって
いる。That is, the outer mold B of the present embodiment is one in which a plurality of rubber elastic bodies are superposed on the flange 51 provided at one end of the tubular body 5, and the rubber elastic bodies are provided in the vicinity of the rear end portion of the receiving port. It is made to be in close contact with the outer peripheral surface of the pipe so that airtightness can be maintained. The other flange 52 has the same structure as that of the second embodiment.
本実施例の場合、加熱軟化したホール管Ｐ２の端部に内
型Ａを圧入してゴム輪装着用溝を有する拡径受口を成形
した後、この受口外周面と外型Ｂで気密に包囲して該外
型Ｂと受口外周面との間の空間部を減圧すると、前記実
施例と同様に受口外周面が凹凸のない平滑な円弧面とな
る。In the case of the present embodiment, the inner die A is press-fitted into the end portion of the hole pipe P2 that has been softened by heating to form a diameter-enlarged receptacle having a groove for mounting a rubber ring, and then the outer peripheral surface of the receptacle and the outer die B are hermetically sealed. When the space between the outer mold B and the outer peripheral surface of the receiving port is depressurized by surrounding the outer peripheral surface of the die, the outer peripheral surface of the receiving port becomes a smooth circular arc surface having no unevenness, as in the above embodiment.
（発明の効果） 以上詳述した如く、本発明の受口成形金型は、ホール管
の端部に拡径受口を成形したのち受口外周面を外型で気
密に包囲し、該外型内を減圧して通孔が存在している部
分の外壁を外周側に膨らませるので、受口外周面に凹凸
がなく、平滑な円弧面を有する受口を成形することがで
きる。(Effects of the Invention) As described above in detail, in the mouthpiece molding die of the present invention, the outer diameter surface of the mouthpiece is airtightly enclosed by the outer peripheral surface of the hole tube after the enlarged diameter mouthpiece is formed. Since the outer wall of the portion where the through hole is present is expanded to the outer peripheral side by depressurizing the inside of the mold, it is possible to form a receptacle having a smooth arc surface without irregularities on the outer peripheral surface of the receptacle.
第１図は本発明の一実施例を示す受口成形金型の縦断面
図、第２図は第１図のII−II線断面図、第３図は本発明
の他の実施例を示す受口成形金型の縦断面図、第４図は
更に本発明の他の実施例を示す受口成形金型の縦断面
図、図５は従来の成形金型を用いてホール管の端部に成
形した受口の要部断面図である。 Ａ……内型、Ｂ……外型、Ｐ２……ホール管、 ａ……通孔、１……拡大部、２……コア部材、３……テ
ーパ部材、５……筒体、５１，５２……フランジFIG. 1 is a vertical sectional view of a mouthpiece molding die showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. 3 shows another embodiment of the present invention. FIG. 4 is a vertical cross-sectional view of a mouthpiece molding die, FIG. 4 is a vertical cross-sectional view of a mouthpiece molding die showing another embodiment of the present invention, and FIG. 5 is an end portion of a hole pipe using a conventional molding die. It is a principal part sectional drawing of the receiving opening shape | molded. A ... inner type, B ... outer type, P2 ... hole tube, a ... through hole, 1 ... enlarged portion, 2 ... core member, 3 ... taper member, 5 ... cylindrical body, 51, 52 ...... flange
Claims (5)
する合成樹脂管の端部に拡径受口を成形する受口成形金
型であって、加熱軟化した管端部に圧入して拡径受口を
成形するための拡大部（１）を備えた内型（Ａ）と、拡
径した受口外周面を所定の空間部をもって気密に包囲す
る外型（Ｂ）とからなり、外型（Ｂ）は拡径受口の外径
よりも大きい内径を有する筒体（５）の一端部に受口後
端部近傍の管外周面に密接するフランジ（５１）と、他
端部に受口先端部の管外周面に密接するフランジ（５
２）とを有し、また前記筒体（５）に真空ポンプと接続
したホース（５３）を接合した構成からなり、管端部に
内型（Ａ）を圧入して拡径受口を成形したのち受口外周
面を外型（Ｂ）で気密に包囲し、該外型（Ｂ）内を減圧
して受口の管壁内に存在している通孔の外壁を外周側に
膨出させるようになしたことを特徴とする受口成形金
型。1. A mouthpiece molding die for molding a diameter-increasing mouthpiece at the end of a synthetic resin pipe having a large number of through-holes communicating with each other in the pipe axis direction in the pipe wall. An inner die (A) having an enlarged portion (1) for press-fitting to form a diameter-enlarged receiving opening, and an outer die (B) which airtightly encloses the diameter-enlarged receiving opening outer peripheral surface with a predetermined space portion. The outer mold (B) includes a flange (51) that is in close contact with the outer peripheral surface of the pipe near the rear end of the receiving port, at one end of the tubular body (5) having an inner diameter larger than the outer diameter of the expanding port. At the other end, a flange (5
2) and a structure in which a hose (53) connected to a vacuum pump is joined to the cylindrical body (5), and an inner die (A) is press-fitted into the end of the pipe to form a diameter-expanding receptacle. After that, the outer peripheral surface of the receiving port is airtightly surrounded by the outer mold (B), the pressure inside the outer mold (B) is reduced, and the outer wall of the through hole existing in the pipe wall of the receiving port bulges to the outer peripheral side. A mouthpiece molding die characterized in that
ランジ（５１）、（５２）をゴム等の弾性体で形成し、
該外型（Ｂ）を径方向に複数個に分割可能としたことを
特徴とする請求項１記載の受口成形金型。2. A cylindrical body (5) and flanges (51), (52) constituting the outer mold (B) are formed of an elastic body such as rubber,
The mouthpiece molding die according to claim 1, wherein the outer die (B) can be divided into a plurality of pieces in the radial direction.
一体的に接合すると共に、これらを径方向に分割可能に
構成し、また筒体（５）の他端部にフランジ（５２）を
接離可能に配設したことを特徴とする請求項１記載の受
口成形金型。3. A flange (51) is integrally joined to one end of the tubular body (5) and is configured to be radially separable, and a flange (51) is attached to the other end of the tubular body (5). 52) The mouthpiece molding die according to claim 1, wherein 52) is arranged so that it can be brought into contact with and separated from the mold.
設け、また筒体（５）の他端部にフランジ（５２）を接
離可能に配設したことを特徴とする請求項１記載の受口
成形金型。4. A flange (51) is provided at one end of the tubular body (5), and a flange (52) is provided at the other end of the tubular body (5) so that it can be contacted and separated. Item 1. The mouthpiece molding die according to Item 1.
出没してゴム輪装着用溝を膨出成形するコア部材（２）
を内蔵していることを特徴とする請求項１、２、３また
は４記載の受口成形金型。5. A core member (2) in which an inner mold (A) projects from a peripheral surface of an enlarged portion (1) to bulge and form a rubber ring mounting groove.
5. The mouthpiece molding die according to claim 1, wherein the die is built in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60133688A JPH0615206B2 (en) | 1985-06-19 | 1985-06-19 | Mouth forming mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60133688A JPH0615206B2 (en) | 1985-06-19 | 1985-06-19 | Mouth forming mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61291122A JPS61291122A (en) | 1986-12-20 |
| JPH0615206B2 true JPH0615206B2 (en) | 1994-03-02 |
Family
ID=15110552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60133688A Expired - Fee Related JPH0615206B2 (en) | 1985-06-19 | 1985-06-19 | Mouth forming mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0615206B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0232976B2 (en) * | 1981-05-29 | 1990-07-24 | Sekisui Chemical Co Ltd | PURASUCHITSUKUKANNOKANTANKAKOHOHO |
-
1985
- 1985-06-19 JP JP60133688A patent/JPH0615206B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61291122A (en) | 1986-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |