JPS6317014A - Method for molding main body for master cylinder - Google Patents

Method for molding main body for master cylinder

Info

Publication number
JPS6317014A
JPS6317014A JP16152286A JP16152286A JPS6317014A JP S6317014 A JPS6317014 A JP S6317014A JP 16152286 A JP16152286 A JP 16152286A JP 16152286 A JP16152286 A JP 16152286A JP S6317014 A JPS6317014 A JP S6317014A
Authority
JP
Japan
Prior art keywords
main body
reservoir
mold
cylinder
reservoir main
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.)
Granted
Application number
JP16152286A
Other languages
Japanese (ja)
Other versions
JPH0549012B2 (en
Inventor
Ichiro Ishiwatari
一郎 石渡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nabco Ltd
Original Assignee
Nabco Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nabco Ltd filed Critical Nabco Ltd
Priority to JP16152286A priority Critical patent/JPS6317014A/en
Publication of JPS6317014A publication Critical patent/JPS6317014A/en
Publication of JPH0549012B2 publication Critical patent/JPH0549012B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Transmission Of Braking Force In Braking Systems (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To effectively prevent a reservoir main body from deforming or breaking by a method wherein stepped parts are formed in and out the reservoir main body so as to apply injection pressure, which is applied from the remaining space side, to a mold through said stepped parts. CONSTITUTION:A molded item consisting of a reservoir main body 16 is set at the predetermined position of a mold at the molding of a cylinder main body 12 so as to be integrated with the body 12 through the molding of the cylinder main body 12. The volume of the interior hollow portion of the reservoir main body 16 is made large and a stepped part 60 is formed on the inner periphery side near the lower part 16b, the diameter of which is a little smaller than that of the upper part 16c, of the reservoir main body. Because the stepped part 60 is almost normal to the axis shaftline of the reservoir main body, a mold effectively stops the injection pressure applied from a basic part 22 side to the lower part 16b of the reservoir main body 16 during injection. On the other hand, recesses 64, each of which runs peripherally, are provided on the outer peripheral portion near the upper end face of an outer peripheral wall 22c and, as the result, stepped parts 66, which are normal to the axis shaftline of the reservoir main body 16, are provided. Consequently, the injection pressure applied from the outer peripheral wall 22c side of the basic part 22 is effectively transmitted to and steeped by the mold.

Description

【発明の詳細な説明】 (産業上の利用分野) この発明は、車両等のブレーキあるいはクラッチ装置に
用いられるマスタシリンダに利用可能な技術に関し、特
に、合成樹脂材料から成るマスタシリンダ用本体の成形
性を向上する上で有効な技術に関するものである。
Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a technology that can be used for master cylinders used in brake or clutch devices for vehicles, etc., and in particular, to a method for molding a main body for a master cylinder made of a synthetic resin material. It concerns techniques that are effective in improving sexual performance.

(従来の技術) マスタシリンダ用本体を合成樹脂材料で成形することに
よって、マスタシリンダの軽量化を図ることは良く知ら
れている。
(Prior Art) It is well known that the weight of the master cylinder can be reduced by molding the main body of the master cylinder from a synthetic resin material.

マスタシリンダ用本体は、作動液を貯えるリザーバの部
分と、ピストンが挿入され液圧室を構成するシリンダの
部分とを有する。リザーバの部分には透明性が要求され
、また、シリンダの部分には大きな機械強度が要求され
る。したがって、両部会を互いに異なる材料、たとえば
、リザーバ本体を単なるナイロン樹脂、シリンダ本体を
補強材入りのナイロン樹脂で各々成形する方法が採られ
る。
The master cylinder main body has a reservoir portion that stores hydraulic fluid, and a cylinder portion into which a piston is inserted and forms a hydraulic chamber. Transparency is required for the reservoir part, and great mechanical strength is required for the cylinder part. Therefore, a method is adopted in which the two sections are made of different materials, for example, the reservoir body is made of simple nylon resin, and the cylinder body is made of nylon resin containing a reinforcing material.

こうした方法の具体的な実施手段の一つとして、シリン
ダ孔を有するシリンダ本体と内部空所を有するリザーバ
本体とを一体化した形状に対応する空間を金型により形
成し、この空間に予め成形した合成樹脂材料製リザーバ
本体を挿入しておき、残余空間に溶融合成樹脂材料を加
圧射出して成形するようにした技術がある1以上につい
ては、たとえば、特開昭58−156446号の公報に
記載されている。
As one specific implementation means of such a method, a space corresponding to the integrated shape of a cylinder body having a cylinder hole and a reservoir body having an internal cavity is formed using a mold, and a molded body is pre-molded in this space. Regarding one or more techniques in which a reservoir body made of a synthetic resin material is inserted and a molten synthetic resin material is pressurized and injected into the remaining space, for example, Japanese Patent Application Laid-Open No. 58-156446 describes Are listed.

(発明が解決しようとする問題点) 既述した従来の技術のように、リザーバの部分を予め成
形しておき、シリンダの部分を成形する際にそれをシリ
ンダ側と一体化する方法によれば、両部会を逆の順序で
成形する場合に比べて、成形品のハンドリングが容易で
あり、しかもまた、後の段階でシリンダ本体に無理な力
を与えないという利点がある。
(Problems to be Solved by the Invention) According to the method of molding the reservoir part in advance and integrating it with the cylinder side when molding the cylinder part, as in the prior art described above, Compared to the case where the two parts are molded in the reverse order, the molded product is easier to handle, and there is also the advantage that no excessive force is applied to the cylinder body at a later stage.

しかし、本発明者の検討によると、金型内に配置したリ
ザーバ本体が、その端部に残余空間側から大きな射出圧
を受けることから、リザーバ本体が金型内の隙間分度形
したり、一部破損したりするおそれがあることが判明し
た。特に、補強材としてのガラス繊維を多量に混入した
ものでは、射出圧力をより高くする必要があり、前記の
問題はより一層顕著となる。
However, according to the study of the present inventor, since the reservoir body placed in the mold receives large injection pressure from the residual space side at its end, the reservoir body may be shaped by the gap in the mold, It was found that some parts may be damaged. In particular, when a large amount of glass fiber is mixed as a reinforcing material, it is necessary to increase the injection pressure, and the above problem becomes even more pronounced.

この発明は、予め成形したリザーバ本体の変形および破
損を簡単な手法により確実に防止することを目的とする
An object of the present invention is to reliably prevent deformation and damage of a pre-formed reservoir body using a simple method.

(問題点を解決するための手段) ここでは、前記残余空間側に位置する、前記リザーバ本
体の内外に段部を形成しておき、残余空間側から作用す
る射出圧力を、それらの段部を介して金型に作用させる
ようにしている。
(Means for solving the problem) Here, stepped portions are formed inside and outside of the reservoir body located on the residual space side, and the injection pressure acting from the residual space side is applied to the stepped portions. It is made to act on the mold through the

(作用) 溶融した合成樹脂材料、たとえば、補強材入りのナイロ
ン樹脂が金型のキャビティ内に射出し充填されると、そ
の射出圧力は、金型内に配置したリザーバ本体の端部に
も作用する。しかし、リザーバ本体には、射出圧力が作
用する端部に近い部分の内外に段部があり、それらの段
部が金型によって支持されているため、前記作用する射
出圧力は段部を介して金型に受けられ、リザーバ本体の
開口側にはその影響はほとんど及ばない、したがって、
高温かつ高圧で成形しても、キャップ取り付けのための
ねじ部が変形したり1.あるいは、リザーバ本体が破損
したりするような開運は生じない。
(Function) When molten synthetic resin material, for example nylon resin containing reinforcing material, is injected and filled into the cavity of a mold, the injection pressure also acts on the end of the reservoir body placed inside the mold. do. However, the reservoir body has stepped portions on the inside and outside of the portion near the end where injection pressure acts, and these stepped portions are supported by the mold, so the injection pressure that acts is applied via the stepped portions. It is affected by the mold and has almost no effect on the opening side of the reservoir body, therefore,
Even if molded at high temperature and high pressure, the threaded part for attaching the cap may be deformed or 1. Or, there will be no chance of damage to the reservoir body.

(実施例) 第1図はこの発明が適用されたマスタシリンダの全体構
成を示す断面図、第2図は第1図の■−■線に沿った断
面図である。
(Embodiment) FIG. 1 is a cross-sectional view showing the overall structure of a master cylinder to which the present invention is applied, and FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG.

マスタシリンダ10は、円筒形のシリンダ本体12を主
体とした部分と1作動液を貯えるリザーバ14の部分と
から成る。リザーバ14の構成要素であるリザーバ本体
16は、透明性を重視する観点からタイプ6のナイロン
の射出成形品であり、また、シリンダ本体12は、充分
な機械強度を得るため、同じナイロンにガラス繊維およ
び必要に応じて黒色の着色材を混入した材料による射出
成形品である。
The master cylinder 10 consists of a main part including a cylindrical cylinder body 12 and a reservoir 14 for storing one working fluid. The reservoir body 16, which is a component of the reservoir 14, is made of type 6 nylon injection molded from the viewpoint of transparency, and the cylinder body 12 is made of the same nylon with glass fibers in order to obtain sufficient mechanical strength. And, if necessary, it is an injection molded product made of a material mixed with a black colorant.

リザーバ14は密封形であり、作動液の収容空間を区画
するリザーバ本体16、およびリザーバ本体16の上部
開口部にねじ込み固定されたキャップ18のほか、外周
のビード部20aがリザーバ本体16の上端面16aと
キャップ18の段差面18aとの間に支持されたゴム製
のダイヤフラム20を備えている。こうしたりザーバ1
4の各構成要素のうち、リザーバ本体16の成形品はシ
リンダ本体12の成形時に金型の所定箇所に設置され、
シリンダ本体12の成形に伴なってそれと一体化される
。そのため、シリンダ本体12の中央外周部分には、リ
ザーバ本体16とほぼ同径の一環状の基礎部22が設け
られている。環状の基礎部22は、シリンダ本体12に
結合する下部22aが一重壁構造、上部22bが二重壁
構造である。
The reservoir 14 is of a sealed type, and includes a reservoir body 16 that defines a storage space for the hydraulic fluid, a cap 18 that is screwed and fixed to the upper opening of the reservoir body 16, and a bead portion 20a on the outer periphery that is formed on the upper end surface of the reservoir body 16. A rubber diaphragm 20 is supported between the cap 16a and the stepped surface 18a of the cap 18. This kind of server 1
Among the components of 4, the molded product of the reservoir body 16 is installed at a predetermined location of the mold when molding the cylinder body 12,
It is integrated with the cylinder body 12 as it is molded. Therefore, an annular base portion 22 having approximately the same diameter as the reservoir body 16 is provided at the central outer peripheral portion of the cylinder body 12 . The annular base portion 22 has a lower portion 22a connected to the cylinder body 12 having a single wall structure, and an upper portion 22b having a double wall structure.

リザーバ本体16は、外周壁22Cと内周壁22dとの
間の環状溝22e内にその下部16bが結合されている
。結合部の凹凸は結合を強固にしている。
A lower portion 16b of the reservoir body 16 is coupled within an annular groove 22e between an outer circumferential wall 22C and an inner circumferential wall 22d. The unevenness of the joint makes the joint strong.

次に、シリンダ本体12は、口が閉じたボトム12aの
側から口が開いたヘッド12bの側まで延びる円筒形で
ある。その内周には、軸線方向に沿ったシリンダ孔12
Cがある。シリンダ孔12Cには、ピストン24が摺動
自在に挿入され、ボトム12a側に液圧室26を形成し
ている。液圧室26は、一方では図示しないポートを通
してクラッチオペレーティングシリンダに連絡され、ま
た他方では、ピストン24の部分に設けた第1通路28
および第2通路30、ならびにシリンダ本体12の基礎
部22の内側に設けた通孔32を通してリザーバ14側
に連絡している。第2通路30はピストン24を径方向
に貫くスリット状の長孔であり、第1通路28および通
孔32がこの長孔を間にして互いに連絡している。そこ
で、ピストン24の外周には、この長孔の前後にリップ
型のシールリング34.36が各々装着されている。
Next, the cylinder body 12 has a cylindrical shape extending from the bottom 12a side with a closed mouth to the head 12b side with an open mouth. On its inner periphery, there is a cylinder hole 12 along the axial direction.
There is C. A piston 24 is slidably inserted into the cylinder hole 12C, forming a hydraulic chamber 26 on the bottom 12a side. The hydraulic chamber 26 is connected on the one hand to the clutch operating cylinder through a port not shown and on the other hand to a first passage 28 provided in the part of the piston 24.
It communicates with the reservoir 14 through a second passage 30 and a through hole 32 provided inside the base portion 22 of the cylinder body 12 . The second passage 30 is a slit-shaped elongated hole that radially penetrates the piston 24, and the first passage 28 and the through hole 32 communicate with each other through this elongated hole. Therefore, lip-type seal rings 34 and 36 are installed on the outer periphery of the piston 24 at the front and rear of this elongated hole, respectively.

ピストン24には、液圧室26側にリターンスプリング
38の力が加わり、また、その反対側にブツシュロッド
40を通してペダルからの踏力が加わる。踏力が加わら
ない非作動時、ピストン24はリターンスプリング38
の付勢力によって第1図における右側に押され、シリン
ダ本体12の開口部に設けたストッパリング42によっ
て図の状態に保持される。一方、ペダルの踏込みによっ
てブツシュロッド40が図の左側に押し込まれる作動時
、ピストン24はブツシュロッド40の動きに追随して
左側に移動して液圧室26の圧力を増すことになる。こ
うした作動、非作動時にリザーバ14の側と液圧室26
との連絡を開閉するのが、ピストン24の一端に配置し
た弁装置44である。弁装置44は、液圧室26に面す
るピストン24の一端に嵌合した略コツプ状のケーシン
グ46と、ケーシング46の内部に配置されピストン2
4の一端面24 aを弁座として着座可能な弁体48と
、弁体48とケーシング46との間に張設され弁体48
を一端面24 aに向けて付勢する弁ばね50とから主
に構成されている。弁体48は、ロッド部分48 aと
その先端に支持されたゴムリング481)とから成り、
ロッド部分48aがピストン24の一端のガイド孔24
bに移動可能にはまっている。ロッド部分48 aの内
部にT字型の通孔が設けられているが、その通孔が前記
第1通路28を構成している。弁装置44における弁体
48は、弁ばね50によって図の右側に付勢されるが、
図に示す非作動時、弁体48のロッド部分48aの後部
はピン部材52によって後退位置が規制され1図のよう
な開弁状態にある。
The force of the return spring 38 is applied to the piston 24 on the hydraulic pressure chamber 26 side, and the pedal force from the pedal is applied to the opposite side through the bushing rod 40. When the piston 24 is not activated and no pedal force is applied, the return spring 38
It is pushed to the right side in FIG. 1 by the urging force of , and is held in the state shown in the figure by a stopper ring 42 provided at the opening of the cylinder body 12. On the other hand, when the bushing rod 40 is pushed to the left in the figure by depressing the pedal, the piston 24 follows the movement of the bushing rod 40 and moves to the left to increase the pressure in the hydraulic chamber 26. During such operation and non-operation, the side of the reservoir 14 and the hydraulic chamber 26
A valve device 44 located at one end of the piston 24 opens and closes communication with the piston 24 . The valve device 44 includes a substantially pot-shaped casing 46 fitted to one end of the piston 24 facing the hydraulic pressure chamber 26, and a casing 46 disposed inside the casing 46 and connected to the piston 24.
A valve body 48 that can be seated on one end surface 24 a of 4 as a valve seat, and a valve body 48 stretched between the valve body 48 and the casing 46
It mainly consists of a valve spring 50 that biases the valve toward the one end surface 24a. The valve body 48 consists of a rod portion 48a and a rubber ring 481 supported at its tip,
The rod portion 48a is connected to the guide hole 24 at one end of the piston 24.
It is movably attached to b. A T-shaped through hole is provided inside the rod portion 48a, and this through hole constitutes the first passage 28. The valve body 48 in the valve device 44 is biased toward the right side in the figure by the valve spring 50.
When not in operation as shown in the figure, the rear part of the rod portion 48a of the valve body 48 is regulated from a backward position by the pin member 52, and is in the open state as shown in Figure 1.

なお、シリンダ本体12の外周の厚い外向きフランジ5
4は、車体への取り付は用であり、このフランジ54は
複数のリブ56および比較的薄い外筒58を介してシリ
ンダ本体12に連結されている。そのため、厚い外向き
フランジ54が成形時に収縮変形したとしても、その影
響はシリンダ本体12にまで大きく及ぶことはない。
Note that the thick outward flange 5 on the outer periphery of the cylinder body 12
The flange 4 is connected to the cylinder body 12 via a plurality of ribs 56 and a relatively thin outer cylinder 58. Therefore, even if the thick outward flange 54 shrinks and deforms during molding, the effect will not extend to the cylinder body 12 to a large extent.

さて、以上述べたようなマスタシリンダ10を製造する
場合、前にも説明したように、まず、リザーバ本体16
を予め成形した後、それを金型内に配置し、残余空間に
溶融材料を射出する。リザーバ本体16は、内部空所の
容積を大とし、しかも、下部16bに近い内周側に段部
60を形成するため、上部16cの径が下部16bより
も少し大きく設定されている。段部60はリザーバ本体
16の軸線に略直交している。そのため、射出時に基礎
部22側からリザーバ本体16の下部16bに加わる射
出圧力を、その段部60を介して金型に有効に受けさせ
ることができる。一方、内側の段部60に対応して外周
側にも段部62が形成されるが、その段部62には基礎
部22の外周壁22cの上端面が接合する。したがって
、射出時。
Now, when manufacturing the master cylinder 10 as described above, first, as explained above, the reservoir body 16 is manufactured.
After pre-forming, it is placed in a mold and molten material is injected into the remaining space. The reservoir main body 16 has a large internal space, and in order to form a stepped portion 60 on the inner peripheral side near the lower part 16b, the diameter of the upper part 16c is set to be slightly larger than that of the lower part 16b. The stepped portion 60 is substantially perpendicular to the axis of the reservoir body 16. Therefore, the injection pressure applied to the lower part 16b of the reservoir body 16 from the base part 22 side during injection can be effectively applied to the mold via the stepped part 60. On the other hand, a step portion 62 is formed on the outer peripheral side corresponding to the inner step portion 60, and the upper end surface of the outer peripheral wall 22c of the base portion 22 is joined to the step portion 62. Therefore, upon ejection.

外周壁22cを介してリザーバ本体16の上部16cに
対して射出圧力が加わる。このように加わる射出圧力は
リザーバ本体16にせん断力として作用するため、リザ
ーバ本体16に変形あるいは破損が生じやすい。しかし
、ここでは、外周壁22cの上端面に近いリザーバ本体
16の外周部分に、周方向に沿ったくぼみ64を設け、
それに伴なって段部66が設けられている。この段部6
6も内周側の段部60と同様にリザーバ本体16の軸線
に略直交しており、基礎部22の外周壁22c側から加
わる射出圧力を有効に金型に伝達し受けさせることがで
きる。なお、くぼみ64の途中の複数箇所に、補強のた
めにリブ68が設けられている。また、くぼみ64は、
作動液の下限レベルを示す目盛りとしても用いられる。
Injection pressure is applied to the upper part 16c of the reservoir body 16 via the outer peripheral wall 22c. Since the injection pressure applied in this manner acts on the reservoir body 16 as a shearing force, the reservoir body 16 is likely to be deformed or damaged. However, here, a recess 64 along the circumferential direction is provided in the outer peripheral portion of the reservoir body 16 near the upper end surface of the outer peripheral wall 22c,
Along with this, a stepped portion 66 is provided. This step 6
6 is also substantially perpendicular to the axis of the reservoir body 16 like the step portion 60 on the inner peripheral side, and can effectively transmit and receive the injection pressure applied from the outer peripheral wall 22c side of the base portion 22 to the mold. Note that ribs 68 are provided at multiple locations in the middle of the depression 64 for reinforcement. Moreover, the depression 64 is
It is also used as a scale to indicate the lower limit level of hydraulic fluid.

図示した例では、外周側の段部66をくぼみ64を形成
することによって得ているが、凸部を形成することによ
って得るようにすることもできる。その点、基礎部22
側を一重壁構造、リザーバ本体16の下部側を二重壁構
造にすることもできる。なお、リザーバ本体16の内外
に設ける段部60,66については、できるだけ基礎部
22に近いところに、しかもまた、内外の各段部を軸線
方向に見て同一高さのところに配置するようにするのが
好ましい。
In the illustrated example, the stepped portion 66 on the outer circumferential side is obtained by forming the recess 64, but it can also be obtained by forming a convex portion. On that point, the foundation part 22
It is also possible to have a single wall structure on the side and a double wall structure on the lower side of the reservoir body 16. Note that the stepped portions 60 and 66 provided on the inside and outside of the reservoir body 16 are arranged as close to the base portion 22 as possible, and also at the same height when viewed in the axial direction. It is preferable to do so.

(発明の効果) この発明では、リザーバ本体16の内外に段部60.6
6を設け、シリンダ本体12の射出成形時に作用する射
出圧力を、それらの段部60,66を介して金型に作用
させるようにしているため、予め成形したリザーバ本体
16の変形あるいは破損を有効に防止することができる
(Effects of the Invention) In this invention, the stepped portions 60.6 are provided inside and outside the reservoir body 16.
6 is provided, and the injection pressure that is applied during injection molding of the cylinder body 12 is applied to the mold through the step portions 60 and 66, so that deformation or damage of the pre-molded reservoir body 16 can be effectively prevented. can be prevented.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はこの発明を適用したマスタシリンダの一実施例
を示す全体的な断面図、第2図は第1図の■−■線に沿
った断面図である。 12・・・シリンダ本体、16・・・リザーバ本体、6
0.66・・・段部。
FIG. 1 is an overall cross-sectional view showing an embodiment of a master cylinder to which the present invention is applied, and FIG. 2 is a cross-sectional view taken along the line ■--■ in FIG. 12... Cylinder body, 16... Reservoir body, 6
0.66...Step part.

Claims (1)

【特許請求の範囲】[Claims] 1、シリンダ孔を有するシリンダ本体と内部空所を有す
るリザーバ本体とを一体化した形状に対応する空間を金
型により形成し、この空間に予め成形した合成樹脂材料
製リザーバ本体を挿入しておき、残余空間に溶融合成樹
脂材料を加圧射出して成形するようにしたマスタシリン
ダ用本体の成形方法において、前記残余空間側に位置す
る、前記リザーバ本体の内外に段部を形成しておき、残
余空間側から作用する射出圧力を、それらの段部を介し
て金型に作用させるようにしたマスタシリンダ用本体の
成形方法。
1. A space corresponding to the integrated shape of a cylinder body having a cylinder hole and a reservoir body having an internal cavity is formed using a mold, and a pre-molded reservoir body made of a synthetic resin material is inserted into this space. , a method for molding a master cylinder main body in which a molten synthetic resin material is molded by pressurized injection into a residual space, wherein stepped portions are formed inside and outside of the reservoir body located on the residual space side; A method for molding a main cylinder for a master cylinder in which injection pressure applied from the residual space side is applied to the mold through the stepped portions.
JP16152286A 1986-07-09 1986-07-09 Method for molding main body for master cylinder Granted JPS6317014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16152286A JPS6317014A (en) 1986-07-09 1986-07-09 Method for molding main body for master cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16152286A JPS6317014A (en) 1986-07-09 1986-07-09 Method for molding main body for master cylinder

Publications (2)

Publication Number Publication Date
JPS6317014A true JPS6317014A (en) 1988-01-25
JPH0549012B2 JPH0549012B2 (en) 1993-07-23

Family

ID=15736681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16152286A Granted JPS6317014A (en) 1986-07-09 1986-07-09 Method for molding main body for master cylinder

Country Status (1)

Country Link
JP (1) JPS6317014A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52105966A (en) * 1976-03-02 1977-09-06 Yoshino Kogyosho Co Ltd Method of forming externally coated bottle
JPS52107052A (en) * 1976-03-05 1977-09-08 Yoshino Kogyosho Co Ltd Method of forming externally coated bottle
JPS54107666U (en) * 1978-01-13 1979-07-28

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52105966A (en) * 1976-03-02 1977-09-06 Yoshino Kogyosho Co Ltd Method of forming externally coated bottle
JPS52107052A (en) * 1976-03-05 1977-09-08 Yoshino Kogyosho Co Ltd Method of forming externally coated bottle
JPS54107666U (en) * 1978-01-13 1979-07-28

Also Published As

Publication number Publication date
JPH0549012B2 (en) 1993-07-23

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