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公开(公告)号：US10851804B2
公开(公告)日：2020-12-01
申请号：US15753916
申请日：2016-07-19
Applicant: ADVICS CO., LTD. , NHK SPRING CO., LTD.
Inventor： Hideki Yamamoto , Hiroshi Mizukami
IPC: F15B1/10 , F15B1/08 , F16L55/053
Abstract: An accumulator according to an embodiment includes, for example, a base member; a cover member welded to the base member, the cover member and the base member defining a pressure chamber therebetween; a stretchable partition member that partitions the pressure chamber into an inner chamber and an outer chamber; and a labyrinth structure provided in at least one of a first part of the base member and a second part of the cover member. The first part is located closer to the outer chamber than a welded part between the base member and the cover member. The second part is located closer to the outer chamber than the welded part, facing the first part.
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公开(公告)号：US20150240839A1
公开(公告)日：2015-08-27
申请号：US14627230
申请日：2015-02-20
Applicant: NHK SPRING CO., LTD.
Inventor： Hiroshi Mizukami
IPC: F15B1/10 , B60T17/06 , F16L55/053
CPC classification number: F15B1/103 , B60T17/06 , F15B1/083 , F16L55/053
Abstract: An accumulator includes a bellows housed to freely expand and contract in a shell, a port part having a pressure fluid inflow port formed therein, and a self-sealing member arranged on a tip portion of the bellows to face the port part, in which when a pressure in the fluid chamber is lower than a predetermined pressure relative to an air chamber, the self-sealing member is allowed to abut onto a seal area of the port part to block the pressure fluid inflow port. The self-sealing member includes a resilient member arranged on a surface of a base material part, and an overhanging portion formed on the resilient member and allowed to abut onto the seal area for sealing. The port part includes a seal face having the seal area formed thereon, and a projecting portion arranged on a region other than the seal area on the seal face.
Abstract translation: 蓄能器包括容纳在壳体中自由膨胀和收缩的波纹管，其中形成有压力流体流入端口的端口部分和布置在波纹管的尖端部分上以面对端口部分的自密封部件， 流体室中的压力相对于空气室低于预定压力，允许自密封构件抵接在端口部分的密封区域上以阻挡压力流体流入口。 自密封构件包括布置在基材部分的表面上的弹性构件和形成在弹性构件上并允许抵靠在密封区域上用于密封的突出部分。 端口部分包括其上形成有密封区域的密封面和布置在密封面上的密封区域以外的区域上的突出部分。
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公开(公告)号：US11786960B2
公开(公告)日：2023-10-17
申请号：US17439583
申请日：2020-03-12
Applicant: NHK SPRING Co., Ltd.
Inventor： Hiroshi Mizukami , Masato Inaba , Masato Sugawara , Michiya Masuda
CPC classification number: B21K1/06 , B60G21/026
Abstract: A method for manufacturing a stabilizer, the stabilizer including a main body bar that is elastically deformable, and a pair of connecting plates that are separately connected to a pair of left and right suspension devices, the method including a forging step of forming the connecting plate by forging both end portions of a material tube, in which in the forging step, both end portions of the material tube are crushed in a radial direction to be formed into the connecting plate in a state where a sealing metal plate heated to a temperature equal to or higher than a melting point is disposed inside both end portions of the material tube heated to a temperature lower than the melting point.
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公开(公告)号：US11174880B2
公开(公告)日：2021-11-16
申请号：US16492708
申请日：2018-01-25
Applicant: NHK SPRING CO., LTD.
Inventor： Hiroshi Mizukami , Ippei Iwai , Mieko Yanagida
IPC: F16L55/04 , F15B1/10 , F16L55/053
Abstract: An accumulator includes a pressure vessel and a partition portion separating an interior space of the pressure vessel into a liquid chamber and a gas chamber so that a volume ratio between the liquid chamber and the gas chamber in the pressure vessel is variable. The pressure vessel includes a first section including a thread portion for fastening the accumulator to a support member and a second section joined to the first section and formed by a single piece including a tool engagement portion capable of engaging with a tool for rotating the accumulator. The first section and the second section are fitted together by mating portions coaxial with the thread portion and the tool engagement portion.
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Patent Agency Ranking
公开(公告)号：US09388830B2
公开(公告)日：2016-07-12
申请号：US14627230
申请日：2015-02-20
Applicant: NHK SPRING CO., LTD.
Inventor： Hiroshi Mizukami
IPC: F16L55/04 , F15B1/10 , F16L55/053 , B60T17/06 , F15B1/08
CPC classification number: F15B1/103 , B60T17/06 , F15B1/083 , F16L55/053
Abstract: An accumulator includes a bellows housed to freely expand and contract in a shell, a port part having a pressure fluid inflow port formed therein, and a self-sealing member arranged on a tip portion of the bellows to face the port part, in which when a pressure in the fluid chamber is lower than a predetermined pressure relative to an air chamber, the self-sealing member is allowed to abut onto a seal area of the port part to block the pressure fluid inflow port. The self-sealing member includes a resilient member arranged on a surface of a base material part, and an overhanging portion formed on the resilient member and allowed to abut onto the seal area for sealing. The port part includes a seal face having the seal area formed thereon, and a projecting portion arranged on a region other than the seal area on the seal face.
Abstract translation: 蓄能器包括容纳在壳体中自由膨胀和收缩的波纹管，其中形成有压力流体流入端口的端口部分和布置在波纹管的尖端部分上以面对端口部分的自密封部件， 流体室中的压力相对于空气室低于预定压力，允许自密封构件抵接在端口部分的密封区域上以阻挡压力流体流入口。 自密封构件包括布置在基材部分的表面上的弹性构件和形成在弹性构件上并允许抵靠在密封区域上用于密封的突出部分。 端口部分包括其上形成有密封区域的密封面和布置在密封面上的密封区域以外的区域上的突出部分。
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公开(公告)号：US12018704B2
公开(公告)日：2024-06-25
申请号：US16982250
申请日：2019-03-27
Applicant: NHK SPRING CO., LTD.
Inventor： Hiroshi Mizukami , Naohito Nakano , Mieko Yanagida
CPC classification number: F15B1/04 , B21D22/20 , B21D51/24 , B23K26/21 , F15B1/103 , F15B1/106 , B21D35/006 , B21D51/16 , F15B2201/3153 , F15B2201/405 , F15B2201/4056 , F15B2201/605
Abstract: A shell member 10 constituting an accumulator 100 including a cover member 30, a shell member 10 having a cylindrical portion 11, an opening portion 13 formed at one end of the cylindrical portion 11 and welded to the cover member 30, and a closed portion 12 formed at another end of the cylindrical portion 11, and an accumulation part 70 accommodated in the shell member 10. The cylindrical portion 11 includes an upper end portion 11a, and a protruding portion 11c having the opening portion 13. The protruding portion 11c is thicker than the upper end portion 11a.
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公开(公告)号：US10759250B2
公开(公告)日：2020-09-01
申请号：US15994359
申请日：2018-05-31
Applicant: NHK SPRING CO., LTD.
Inventor： Jun Umeno , Yukihiro Seki , Toru Itihara , Hiroshi Mizukami
IPC: B60G21/055 , F16F1/373
Abstract: A stabilizer device includes a stabilizer extending in a width direction of a vehicle, and a bush unit. The bush unit includes a bracket formed of metal, and a rubber bush. The rubber bush is formed of a plurality of bush pieces, and is fixed to the stabilizer by an adhesion layer. The adhesion layer is constituted of an adhesion member including an adhesive applied to inner surfaces of the bush pieces. A bonding display portion formed of a part of the adhesion member is provided at a corner on an end face of the bush piece.
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公开(公告)号：US09689405B1
公开(公告)日：2017-06-27
申请号：US15172414
申请日：2016-06-03
Applicant: NHK SPRING CO., LTD.
Inventor： Hiroshi Mizukami
CPC classification number: F15B1/103 , F15B1/083 , F15B2201/205 , F15B2201/3153 , F15B2201/40
Abstract: A hydraulic accumulator includes a shell, a bellows, and a self-seal stay disposed at a hydraulic-fluid inlet and including a cylindrical body portion open to a hydraulic chamber and a lid-shaped head portion defining a through hole. The self-seal stay includes a first weakened portion for deforming the body portion when a pressure of the gas chamber is more than a given threshold. The first weakened portion includes a first recessed portion formed in a circumferential direction of the body portion. The first recessed portion includes a bottom surface of a plane surface or a circular arc shaped curved surface which is convex toward outside of the body portion from inside thereof. At least one of both end portions of the bottom surface in the circumferential direction is joined with an outer circumferential surface of the body portion.
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公开(公告)号：US11255351B2
公开(公告)日：2022-02-22
申请号：US16492719
申请日：2018-01-25
Applicant: NHK SPRING CO., LTD.
Inventor： Hiroshi Mizukami , Mieko Yanagida , Ippei Iwai
IPC: F16L55/04 , F15B1/10 , F15B1/24 , F16L55/053
Abstract: An accumulator includes a pressure vessel including a first section and a second section joined to each other via a joint portion and a partition portion separating an interior space of the pressure vessel into a liquid chamber and a gas chamber so that a volume ratio between the liquid chamber and the gas chamber in the pressure vessel is variable. The first section includes a thread portion for fastening the accumulator to a support member. The second section includes an abutting portion disposed opposite to the thread portion across the joint portion in an axial direction of the thread portion and configured to abut on the support member when the accumulator is fastened to the support member.
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