JPH0392679A - Manufacture of pressure vessel - Google Patents
Manufacture of pressure vesselInfo
- Publication number
- JPH0392679A JPH0392679A JP1230241A JP23024189A JPH0392679A JP H0392679 A JPH0392679 A JP H0392679A JP 1230241 A JP1230241 A JP 1230241A JP 23024189 A JP23024189 A JP 23024189A JP H0392679 A JPH0392679 A JP H0392679A
- Authority
- JP
- Japan
- Prior art keywords
- cap
- outer case
- open end
- peripheral surface
- pressure vessel
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 230000002093 peripheral effect Effects 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 2
- 230000009191 jumping Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 13
- 239000003921 oil Substances 0.000 description 8
- 239000010720 hydraulic oil Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はアキュムレータ等のガス分離型圧力容器の製造
方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of manufacturing a gas separation type pressure vessel such as an accumulator.
（従来の技術）
従来、車両等で使用する圧力容器としては、例えば第６
図に示すように、アウターケース５１内にピストン５２
を摺動自在に嵌装してアウクーケース５王内を油室Ｓ１
と気体室Ｓ２に画威し、油室Ｓ１には作動油を充填し、
気体室Ｓ２には高圧ヂッソガスを封入し、またアウター
ケース５１の開口端部５３内周面にキャップ５４を嵌装
してシールリング５５にてアウターケース５１内周面と
の間をシールし、更にアウターケース５１の開口端部５
３外周面にエンドキャップ５６を螺着したものがある。(Prior art) Conventionally, pressure vessels used in vehicles, etc.
As shown in the figure, a piston 52 is installed inside the outer case 51.
Slideably fit the Auc case 5 inside the oil chamber S1.
The gas chamber S2 is filled with hydraulic oil, and the oil chamber S1 is filled with hydraulic oil.
The gas chamber S2 is filled with high-pressure diso gas, a cap 54 is fitted on the inner circumferential surface of the open end 53 of the outer case 51, and a seal ring 55 seals between the inner circumferential surface of the outer case 51 and the inner circumferential surface of the outer case 51. Opening end 5 of outer case 51
3. There is one with an end cap 56 screwed onto the outer peripheral surface.
（発明が解決しようとする課題）
しかしながら、上述した圧力容器のようにキャップの他
にエンドキャップをアウターケースの開口端部に螺着す
るのでは、部品点数多くなり、外径寸法が大きくなり、
更にエンドキャップの緩み防止措置が必要になり、しか
もキャップ及びエンドキャップが外れた場合にピストン
が気体室のガス圧によってアウターケースから飛出すお
それがある。(Problems to be Solved by the Invention) However, when an end cap is screwed onto the open end of the outer case in addition to the cap as in the above-mentioned pressure vessel, the number of parts increases and the outer diameter becomes large.
Furthermore, it is necessary to take measures to prevent the end cap from loosening, and furthermore, if the cap and end cap come off, there is a risk that the piston will fly out of the outer case due to the gas pressure in the gas chamber.
（課題を解決するための手段）
上記課題を解決するため本発明は、アウターケースの開
口端部内径はビス｝・ン外径より小さく形威した。また
、アウターケースの開口端部内周面及びキャップ外周面
にそれぞれ三角溝を条設し、キャップをアウターケース
の開口端部に嵌め合わせた後、アウターケースの開口端
部な内方に紋ってキャップの三角溝とアウターケースの
開口端部の三角溝とを食い込ませて製造する。(Means for Solving the Problems) In order to solve the above problems, in the present invention, the inner diameter of the opening end of the outer case is smaller than the outer diameter of the screw. In addition, triangular grooves are provided on the inner peripheral surface of the opening end of the outer case and on the outer peripheral surface of the cap, and after the cap is fitted to the opening end of the outer case, a triangular groove is formed on the inner peripheral surface of the opening end of the outer case. It is manufactured by biting the triangular groove of the cap into the triangular groove of the open end of the outer case.
（作 用）
キャップをアウターケースの開口端部に嵌め合わせた後
、アウターケースの開口端部を内方に絞ってキャップの
三角溝とアウターケースの開口端部の三角溝とを食い込
ませて製造するので、エンドキャップが不要になって部
品点数が少なくなり、外径寸法も小さくなる。(Function) After fitting the cap to the open end of the outer case, the open end of the outer case is squeezed inward to make the triangular groove of the cap bite into the triangular groove of the open end of the outer case. This eliminates the need for an end cap, reduces the number of parts, and reduces the outer diameter.
（実施例） 以下に本発明の実施例を添付図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the accompanying drawings.
第１図は本発明にかかる圧力容器の断面図、第２図は同
圧力容器の製造工程を示す断面図である。FIG. 1 is a sectional view of a pressure vessel according to the present invention, and FIG. 2 is a sectional view showing the manufacturing process of the same pressure vessel.
圧力容器１は、底部にガス封入用通孔２ａ（図示しない
プラグにて封止する）を形威したアウタ一ケース２内に
ピストン３を摺動自在に嵌装して油室Ｓ１及び気体室Ｓ
２を画威し、油室Ｓ１には作動油を充填し、気体室Ｓ２
にはヂッソガスを封入し、またピストン３の外周面には
アウターケース２内周面との間をシールするシールリン
グ４を嵌装している。The pressure vessel 1 has a piston 3 slidably fitted into an outer case 2 having a gas filling hole 2a (sealed with a plug, not shown) at the bottom to form an oil chamber S1 and a gas chamber. S
2, the oil chamber S1 is filled with hydraulic oil, and the gas chamber S2 is filled with hydraulic oil.
is filled with diso gas, and a seal ring 4 is fitted on the outer peripheral surface of the piston 3 to seal between it and the inner peripheral surface of the outer case 2.
アウターケース２の開口端部５内周面にはキャップ６を
固着し、このキャップ６の外周面にはアウターケース２
内周面との間をシールするシールリング７を嵌装し、ま
たキャップ６には油室Ｓ１に連通する通孔８を形威して
いる。A cap 6 is fixed to the inner peripheral surface of the open end 5 of the outer case 2, and the outer case 2 is fixed to the outer peripheral surface of the cap 6.
A seal ring 7 is fitted to seal between the inner peripheral surface and the cap 6, and a through hole 8 communicating with the oil chamber S1 is formed in the cap 6.
この圧力容器工を製造するには、第２図（Ａ）に示すよ
うに、アウターケース２の開口端部５を外側に膨らませ
て形威するとともに、この開口端部５内周面に複数の例
えば６０゜の三角溝１ｌを条殺し、また同図（Ｂ）に示
すようにキャップ６の外周面にも開口端部５内周面の三
角溝１１に対応して複数の例えば６０゜の三角溝１２を
条設しておき、同図（Ｂ）に示ずようにアウターケース
２の開口端部５外径よりも内径が小さいダイスｌ３内に
ピストン３を収納したアウターケース２を保持し、一方
ブツシエロツドｌ４にてキャップ６を保持した後、ダイ
ス１３を矢印方向に移動してキャップ６を７ウターケー
ス２の開口端部５内に嵌め合わせた後同図（Ｃ）に示す
ように更にダイス１３を矢印方向に移動してアウターケ
ース２の開口端部５を内方に絞ってキャップ６の三角溝
１２と７ウターケース２の開口端部５の三角溝１１とを
食い込ませることによって、アウターケース２の開口端
部５にキャップ６を固定する。In order to manufacture this pressure vessel construction, as shown in FIG. For example, a 60° triangular groove 1l is formed, and as shown in FIG. A groove 12 is provided, and the outer case 2 is held in which the piston 3 is housed in a die l3 having an inner diameter smaller than the outer diameter of the open end 5 of the outer case 2, as shown in FIG. On the other hand, after holding the cap 6 with the bushing rod 14, move the die 13 in the direction of the arrow to fit the cap 6 into the open end 5 of the outer case 2. by moving the opening end 5 of the outer case 2 in the direction of the arrow and squeezing the triangular groove 12 of the cap 6 into the triangular groove 11 of the opening end 5 of the outer case 2. A cap 6 is fixed to the open end 5 of.
それによって、キャップ６はアウターケース２の開口端
部５内周面に確実に固着され、このキャップ６の脱落を
防止するためにエンドキャップが不要になる。Thereby, the cap 6 is securely fixed to the inner peripheral surface of the open end 5 of the outer case 2, and an end cap is not required to prevent the cap 6 from falling off.
第３図は別実施例にかかる圧力容器の断面図、第４図は
同圧力容器の製造工程を示す断面図、第５図は同圧力容
器のキャップが外れた状態を示す断面図である。FIG. 3 is a sectional view of a pressure vessel according to another embodiment, FIG. 4 is a sectional view showing the manufacturing process of the pressure vessel, and FIG. 5 is a sectional view of the same pressure vessel with the cap removed.
圧力容器２１は、底部にガス封入用通孔２２ａ（ブラグ
３５にて封止ずる）を形威したアウター５
ケース２２内にピストン２３を摺動自在に嵌装して油室
Ｓ１及び気体室Ｓ２を画威し、油室Ｓ１には作動油を充
填し、気体室Ｓ２にはチッソガスを封入し、またピスト
ン２３の外周面にはアウターケース２内周面との間をシ
ールするシールリング２４を嵌装している。The pressure vessel 21 includes an outer 5 having a gas filling hole 22a (sealed with a plug 35) at the bottom, a piston 23 slidably fitted into the case 22, and an oil chamber S1 and a gas chamber S2. The oil chamber S1 is filled with hydraulic oil, the gas chamber S2 is filled with nitrogen gas, and a seal ring 24 is provided on the outer circumferential surface of the piston 23 to seal between it and the inner circumferential surface of the outer case 2. It is fitted.
アウターケース２２の開口端部２５内周面にはキャップ
２Ｇを固着し、このキャップ２Ｇの外周面にはアウター
ケース２２内周面との間をシールするシールリング２７
を嵌装し、またアウターケース２２の開口端部２５内径
はピストン２３外径よりも小さく形成し、更にまたキャ
ップ２６には油室Ｓｌに連通する通孔２８を形威してい
る。A cap 2G is fixed to the inner peripheral surface of the open end 25 of the outer case 22, and a seal ring 27 is provided on the outer peripheral surface of the cap 2G to seal between the inner peripheral surface of the outer case 22 and the inner peripheral surface of the outer case 22.
The inner diameter of the open end 25 of the outer case 22 is smaller than the outer diameter of the piston 23, and the cap 26 has a through hole 28 communicating with the oil chamber Sl.
この圧力容器２１を製造するには、第４図（Ａ）に示す
ように、アウターケース２２の開口端部２５内周面に複
数の例えば６０゜の三角溝３１を条設し、また同図ＣＢ
）に示すようにキャップ２６の外周面にも開口端部２５
内周面の三角溝３１に対応して複数の例えば６０゜の三
角溝３２を条設しておき、同図（Ｂ）に示すようにダイ
３３内に６
ピスＩ・ン２３を収納したアウターケース２２を保持し
た後、キャップ２６をアウターケース２２の開口端部２
５内に嵌め込み、同図（Ｃ）に示すようにキャップ２Ｇ
の後方からアウターケース２２の開口端部２５外径より
も内径が小さいプッシュロツド３４を矢印方向に移動し
てアウターケース２２の開口端部２５を内方に絞ってキ
ャップ２Ｇの三角ｔｌ４ ３ ２とアウターケース２２
の開口端部２５の三角溝３１とを食い込ませ、更にプッ
シュロツド３４を矢印方向に移動してアウターケース２
２の開口端部２５を内方に絞ってピストン２３の外径よ
りアウターケース２２の開口端部２５を小さくして、ア
ウターケース２２の開口端部２５にキャップ２Ｇを固定
する。In order to manufacture this pressure vessel 21, as shown in FIG. 4(A), a plurality of triangular grooves 31 of, for example, 60° are provided on the inner circumferential surface of the open end 25 of the outer case 22. C.B.
), the outer peripheral surface of the cap 26 also has an open end 25.
A plurality of, for example, 60° triangular grooves 32 are provided corresponding to the triangular grooves 31 on the inner circumferential surface, and as shown in FIG. After holding the case 22, the cap 26 is attached to the open end 2 of the outer case 22.
5, and as shown in the same figure (C), attach the cap 2G.
The push rod 34, which has an inner diameter smaller than the outer diameter of the open end 25 of the outer case 22, is moved in the direction of the arrow from the rear of the outer case 22 to squeeze the open end 25 of the outer case 22 inward to connect the triangular tl432 of the cap 2G and the outer case 22
the triangular groove 31 of the open end 25 of the outer case 2, and further move the push rod 34 in the direction of the arrow to
The cap 2G is fixed to the open end 25 of the outer case 22 by narrowing the open end 25 of the outer case 22 inward to make the open end 25 of the outer case 22 smaller than the outer diameter of the piston 23.
それによって、キャップ２６はアウターケース２２の開
口端部２５円周面に確実に固着され、このキャップ２６
の脱落を防止するためにエンドキャップが不要になる。Thereby, the cap 26 is securely fixed to the circumferential surface of the open end 25 of the outer case 22, and the cap 26
There is no need for an end cap to prevent it from falling off.
しかも、仮に第５図に示すようにキャップ２６がアウタ
ーケース２２から外けたような場合でも、アウターケー
ス２２の開口端部２５の内径がピス１・ン２３の外径よ
り小さいので、ピストン２３がアウターケース２２から
飛出ずようなことがない。Furthermore, even if the cap 26 is removed from the outer case 22 as shown in FIG. There is no chance of it falling out of the outer case 22.
尚、実施例にあっては三角溝３１を示したが、これ以外
の溝例えば角溝や波形溝としてもよい。Although the triangular groove 31 is shown in the embodiment, other grooves such as square grooves or wave-shaped grooves may be used.
（発明の効果）
以上説明したように本発明によれば、アウターケースの
開口端部内径はビス｝・ン外径より小さく形成したので
、キャップが外れたような場合でもビスｌ・ンが７ウタ
ーケースから飛出すことはない。(Effects of the Invention) As explained above, according to the present invention, the inner diameter of the opening end of the outer case is formed smaller than the outer diameter of the screws, so even if the cap comes off, the screws will be 7. It will not fly out of the outer case.
また、キャップをアウターケースの開口端部に嵌め合わ
せた後、アウターケースの開口端部を内方に絞ってキャ
ップの溝とアウターケースの開口端部の溝とを食い込ま
せて製造するので、エンドキャップが不要になって部品
点数が少なくなり、外径寸法も小さくなる。In addition, after fitting the cap to the open end of the outer case, the open end of the outer case is squeezed inward to fit the groove of the cap and the groove of the open end of the outer case. A cap is no longer required, the number of parts is reduced, and the outer diameter is also reduced.
第１図は本発明にかかる圧力容器の断面図、第２図は同
圧力容器の製造工程を示す断面図、第３図は本発明にか
かる圧力容器の断面図、第４図ば同圧力容器の製造工程
を示す断面図、第５図は同圧力容器のキャップが外れた
状態を示す断面図、第６図は従来の圧力容器の断面図で
ある。
尚、図面中、１．２１は圧力容器、２，２２はアウター
ケース、３．２３はピストン、５８２５はアウターケー
スの開口端部、６，２６はキャップである。
特 許 出 願 人 株式会社 昭和製作所代 理
人 弁理士 下 田 容 一 郎同
弁理士 大 橋 邦 彦
同 弁理士 小 山 有
９
−６３７−FIG. 1 is a sectional view of a pressure vessel according to the present invention, FIG. 2 is a sectional view showing the manufacturing process of the pressure vessel, FIG. 3 is a sectional view of the pressure vessel according to the present invention, and FIG. 5 is a sectional view showing the same pressure vessel with the cap removed, and FIG. 6 is a sectional view of a conventional pressure vessel. In the drawings, 1.21 is a pressure vessel, 2 and 22 are outer cases, 3.23 is a piston, 5825 is an open end of the outer case, and 6 and 26 are caps. Patent applicant: Showa Seisakusho Co., Ltd.
People Patent Attorney Yoichi Shimoda
Patent Attorney Kunihiko Ohashi Patent Attorney Yu9 Koyama -637-
Claims (1)
圧力容器において、前記アウターケースの開口端部内周
面及び前記キャップ外周面にそれぞれ溝を条設し、前記
キャップを前記アウターケースの開口端部に嵌め合わせ
た後、前記アウターケースの開口端部を内方に絞つて前
記キャップの溝と前記アウターケースの開口端部の溝と
を食い込ませることを特徴とする圧力容器の製造方法。(1) In a pressure vessel in which a cap is attached to the open end of the outer case, grooves are provided on the inner circumferential surface of the open end of the outer case and on the outer circumferential surface of the cap, and the cap is attached to the open end of the outer case. 1. A method of manufacturing a pressure vessel, which comprises: after fitting the outer case, the open end of the outer case is squeezed inward so that the groove of the cap and the groove of the open end of the outer case bite into each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1230241A JPH0392679A (en) | 1989-09-05 | 1989-09-05 | Manufacture of pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1230241A JPH0392679A (en) | 1989-09-05 | 1989-09-05 | Manufacture of pressure vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0392679A true JPH0392679A (en) | 1991-04-17 |
Family
ID=16904740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1230241A Pending JPH0392679A (en) | 1989-09-05 | 1989-09-05 | Manufacture of pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0392679A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004067968A1 (en) * | 2003-02-01 | 2004-08-12 | Hydac Technology Gmbh | Method for the production of piston-type accumulators |
| JP2007225042A (en) * | 2006-02-24 | 2007-09-06 | Nobuyuki Sugimura | Piston type accumulator |
-
1989
- 1989-09-05 JP JP1230241A patent/JPH0392679A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004067968A1 (en) * | 2003-02-01 | 2004-08-12 | Hydac Technology Gmbh | Method for the production of piston-type accumulators |
| EP1808605A1 (en) | 2003-02-01 | 2007-07-18 | HYDAC Technology GmbH | Method for manufacturing piston-type accumulators |
| US8387253B2 (en) * | 2003-02-01 | 2013-03-05 | Hydac Technology Gmbh | Method for the production of piston-type accumulators |
| JP2007225042A (en) * | 2006-02-24 | 2007-09-06 | Nobuyuki Sugimura | Piston type accumulator |
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