公开(公告)号：JPH01258912A

公开(公告)日：1989-10-16

申请号：JP8655488

申请日：1988-04-08

Applicant: NOK CORP

Inventor： KURITA YOSHIYUKI ,  SAITO TAKASHI

IPC: B29C33/02 ,  B29C43/18 ,  B29C43/20 ,  B29K21/00 ,  B29L9/00 ,  B32B3/24 ,  B32B7/02 ,  F16J3/02

Abstract: PURPOSE:To easily manufacture a durable bladder having the resistance to permeation of gases by a structure wherein a metal foil having a specified shape is imbedded within a rubber bladder main body. CONSTITUTION:A first bladder semi-molded form is produced by compression- molding stock rubber 4. Next, a second bladder semi-molded form is produced by compression-molding another stock rubber 4 under the state that a metal foil 2 having slits 2a running radially from its center is placed onto said another stock rubber 4. Finally, a bladder 1 is obtained by compressing the first bladder semi-molded form 5 put on the metal foil 2 of the second bladder semi-molded form 6 as a whole. The permeation of gases and deformation of the obtained bladder 1 is surely prevented from occurring and the durability of the bladder 1 is improved remarkably.

公开(公告)号：JP2007100853A

公开(公告)日：2007-04-19

申请号：JP2005291981

申请日：2005-10-05

Applicant: Nok Corp ,  Nok株式会社

Inventor： KURITA YOSHIYUKI

IPC: F15B1/08

Abstract: PROBLEM TO BE SOLVED: To provide an accumulator assembling method for improving the strength of a welded portion between a shell 11 and an oil port 12. SOLUTION: The accumulator assembling method comprises a step of shaping the shell 11 by applying drawing work to a cylindrical portion of a bottomed metal cylinder body 110. Herein, a drawn end 115a is latched to a flange portion 121 of the oil port 12 and a cylindrical protruded edge formed at the drawn end 115a is externally fitted to the oil port 12, and then the front end of the cylindrical protruded edge 112 is welded to the oil port 12. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 解决方案：提供一种用于提高壳体11和油口12之间的焊接部分的强度的蓄压器组装方法。解决方案：蓄能器组装方法包括以下步骤：将壳体11成形为 在有底金属筒体110的圆筒部上进行拉拔加工。这里，拉出端部115a卡止到油口12的凸缘部121，并且在拉拔端部115a形成的圆筒状突出部外侧嵌合于油 端口12，然后圆柱形突出边缘112的前端焊接到油口12.版权所有（C）2007，JPO＆INPIT

公开(公告)号：JPH0861510A

公开(公告)日：1996-03-08

申请号：JP21068394

申请日：1994-08-12

Applicant: NOK CORP

Inventor： KURITA YOSHIYUKI

IPC: F16J15/24

Abstract: PURPOSE: To prevent a sealing member from gas leakage resulting from gas permeation and enhance the sealing performance by forming a gas shield layer inside a ring-shaped elastomer to be interposed between two opposing members, and embedding or pinching this gas shield layer in such a condition as across the gas leaking direction. CONSTITUTION: A piston type accumulator is structured so that a sealing member 10 is compressedly interposed between the bottom of a groove 4a formed at the periphery of a piston 4 and the inside surface of a cylindrical shell 1. Thus sealing is generated for a gas chamber 2 in which gas G is encapsulated. The sealing member 10 is accomplished by embedding a gas shield layer 12 formed in a flexible film continuing in the circumferential direction from a metal foil or synthetic resin to shut off the gas permeating inside a ring-shaped elastomer 11 having a circular section across the axis 0 in the non-mounted condition. The synthetic resin film constituting the gas shield layer 12 is formed from polyvinyl alcohol, ethylene vinyl alcohol, etc.

公开(公告)号：JPH0483902A

公开(公告)日：1992-03-17

申请号：JP19667990

申请日：1990-07-25

Applicant: NOK CORP

Inventor： KURITA YOSHIYUKI

IPC: F15B1/08 ,  F15B1/10

Abstract: PURPOSE:To prevent abrasion caused by oscillation, deformation, and contact of the foremost end part of bellows member by arranging at least one guide member in a gas chamber, and engaging an engaging means arranged at the foremost end part of the bellows member with the guide member so as to use it as a guide for the bellows member. CONSTITUTION:Guide members 16 are erected on both sides of an end face member 11B at the side of a gas chamber 12A of a compressor 11, and a through hole 15a of the guide member 16 is formed on a cap 15 which seals one end of a bellows member 14 of which the other end is fixed to the end face member 11B so as to use it as guides for the bellows member 14. Accordingly, oscillation at the top end of the bellows member 14 is prevented, and contact with the inner wall of the compressor 11 is prevented so as to suppress deformation which generates at a local part.

公开(公告)号：JPH03140601A

公开(公告)日：1991-06-14

申请号：JP27793789

申请日：1989-10-25

Applicant: NOK CORP

Inventor： KURITA YOSHIYUKI ,  SAITO TAKASHI

IPC: F15B1/08

Abstract: PURPOSE:To prevent the occurrence of peeling off of an adhering part of an elastic material layer and an accident of the falling down of its peripheral edge by providing a holding member in an arrangedly provided groove formed on an outer periphery of the peripheral edge of the elastic material layer to hold the elastic material layer against a shell inner periphery even in the case of its corresponding to change in hydraulic pressure. CONSTITUTION:An accumulator bladder 10 has a holding member 14 provided on an outer peripheral of the peripheral edge of the elastic material layer 11. The elastic material layer 11 is attached to a shell 21 through a fixing member 22, and when the layer 11 moves in the direction shown by an arrow A or B according to a difference between gas pressure in a gas chamber 21A and hydraulic pressure in a liquid chamber 21B, the fixing member 22 can prevent the outer periphery of the peripheral edge of the layer 11 from moving from its fixed position. The occurrence of peeling off of an adhering part can therefore by prevented between the layer 11 and a gas shielding layer 12 or inside a gas shielding layer 12, and moreover the falling down of the outer periphery of the peripheral edge of the layer 11 from its fixed position can be prevented by the fixing member 22.

公开(公告)号：JP2010121637A

公开(公告)日：2010-06-03

申请号：JP2008292949

申请日：2008-11-17

Applicant: Advics Co Ltd ,  Nok Corp ,  Nok株式会社 ,  株式会社アドヴィックス

Inventor： MIYAKE KUNIAKI ,  OTA TAKASHI ,  TERADA KEI ,  ARIKAWA TATSUHIRO ,  KURITA YOSHIYUKI ,  MIZUTANI EIJI ,  HOSOI NORIYUKI ,  OGURA TOMOO

IPC: F15B1/08

CPC classification number: F15B1/103 ,  F15B2201/205 ,  F15B2201/3153

Abstract: PROBLEM TO BE SOLVED: To provide a metal bellows accumulator having improved durability and safety by releasing liquid from a liquid chamber to prevent the deformation of the metal bellows and damage thereto when the pressure of the liquid chamber is increased for fire, or the like in a zero-down condition that the metal bellows is shrunk.
SOLUTION: In the metal bellows accumulator, the seal means includes a seal member made of an elastic material in which a reinforcing ring made of a metal material is embedded, and a holder for holding the seal member on the side of the cap in an axially movable manner. When the seal member is burnt down, a communication means is provided to communicate the liquid chamber side with the introduction hole side.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种金属波纹管蓄能器，其具有改善的耐久性和安全性，通过从液体室释放液体以防止金属波纹管变形并在液体室的压力升高时对其造成损坏，或 在零下降条件下金属波纹管收缩。 解决方案：在金属波纹管储能器中，密封装置包括由弹性材料制成的密封构件，其中嵌入由金属材料制成的加强环，以及用于将密封构件保持在盖的侧面上的保持器 以可轴向移动的方式。 当密封构件被烧毁时，提供连通装置以将液体室侧与引入孔侧连通。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2007162834A

公开(公告)日：2007-06-28

申请号：JP2005360203

申请日：2005-12-14

Applicant: Nok Corp ,  Nok株式会社

Inventor： TSUCHIMOTO NORIAKI ,  KURITA YOSHIYUKI

IPC: F15B1/08

CPC classification number: F15B1/103 ,  F15B1/10 ,  F15B1/125 ,  F15B2201/205 ,  F15B2201/3151 ,  F15B2201/3153 ,  F15B2201/3156

Abstract: PROBLEM TO BE SOLVED: To provide an accumulator which prevents early wear damage of a bladder so as to maintain good buffering capability. SOLUTION: In the accumulator of the invention, a low friction material is arranged at a portion of an inner peripheral surface of a shell 1 which an outer peripheral surface of the bladder comes into contact with contact, thereby preventing the wear of the bladder. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种防止膀胱早期磨损的蓄能器，以保持良好的缓冲能力。 解决方案：在本发明的蓄能器中，在外壳1的内周面的一部分布置有低摩擦材料，外壳的外周面与触头接触，从而防止了 膀胱。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006077908A

公开(公告)日：2006-03-23

申请号：JP2004263548

申请日：2004-09-10

Applicant: Nok Corp ,  Nok株式会社

Inventor： KURITA YOSHIYUKI

IPC: F15B1/24

Abstract: PROBLEM TO BE SOLVED: To provide the piston type accumulator 1 that can obtain a comparatively big impact absorption effect and control this impact absorption effect. SOLUTION: A gas room 7 is formed by inserting a piston 6 into a cylinder 2 and the throttle mechanism 15 to exhibit the damper action in the gas room 7 are equipped with the piston type accumulator 1 that seals the gas to exhibit the gas spring action in the gas room 7, and furthermore the adjust mechanism 21 to change the orifice characteristic of the throttle mechanism 15. It makes to possible to operate the adjust mechanism 21 from the outside of the cylinder 2. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供能够获得较大的冲击吸收效果并控制该冲击吸收效果的活塞式蓄能器1。 解决方案：气体室7通过将活塞6插入气缸2而形成，并且节气门机构15在气室7中呈现减震作用，配备有活塞式蓄能器1，活塞式蓄能器1密封气体， 气体弹簧作用在气室7中，此外，调节机构21改变节流机构15的孔口特性。使得可以从气缸2的外部操作调节机构21.版权所有（ C）2006，JPO＆NCIPI

公开(公告)号：JPH0868401A

公开(公告)日：1996-03-12

申请号：JP13086694

申请日：1994-05-23

Applicant: NOK CORP

Inventor： KURITA YOSHIYUKI ,  SAITO TAKAFUMI ,  YOSHIDA MINORU

IPC: F16L55/04 ,  B29C37/02 ,  F15B1/08 ,  F16J3/02

Abstract: PURPOSE: To provide a manufacture of a bladder for an accumulator by which the bladder can be manufactured in such a manner that the end surface of the end part of a gas shielding layer can reach the end surface of the end part of an elastic material layer, and also manufactured under a condition without causing any pucker on the gas shielding layer. CONSTITUTION: A forming material and a gas shielding layer 12 are arranged in the forming part of a forming die having a burr forming part on the end part of the forming part, and a bladder is formed under such a condition that the end part 12a of the gas shielding layer 12 is arranged at least in the burr forming part, then a burr part 11d formed by the burr forming part is cut off from the bladder.