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1. 发明授权

EP3029360B1 METAL BELLOWS 有权
公开(公告)号：EP3029360B1
公开(公告)日：2018-09-19
申请号：EP14832773.7
申请日：2014-05-21
申请人： Eagle Industry Co., Ltd.
发明人： ARIKAWA Tatsuhiro
IPC分类号： F16J3/04 , F15B1/10
CPC分类号： F15B1/103 , F15B2201/40 , F16J3/047
摘要： Provided is a metal bellows that prevents a metal bellows from breaking due to a temperature change or a contact between adjacent slope portions, and to shorten the length of the metal bellows in an expansion-contraction direction at maximal contraction. A metal bellows (110) for an accumulator (100) into which a hydraulic fluid is drawn in, the metal bellows (110) having a bellows-shape in which ridge fold portions (110a) and valley fold portions (110b) are formed repeatedly with slope portions (110c) in between, wherein two of the slope portions (110c) that are adjacent to each other via a common ridge fold portion (110a) have: first slope portions (110c1) each of which extends from the common ridge fold portion (110a) such that a distance therebetween becomes greater as the first slope portions (110c1) extend toward adjacent valley fold portions (110b) or such that the distance therebetween remains constant; and second slope portions (110c2) each of which extends from each of the first slope portions (110c1) extending from the common ridge fold portion (110a) such that a distance therebetween becomes much greater than the first slope portions (110c1) as the second slope portions (110c2) extend toward the adjacent valley fold portions (110b), wherein the first slope portion (110c1) and the second slope portion (110c2) are such that cross sections thereof are connected at an inflection point (P).

2. 发明公开

EP3578829A1 ACCUMULATOR 有权
公开(公告)号：EP3578829A1
公开(公告)日：2019-12-11
申请号：EP18748451.4
申请日：2018-01-26
申请人： Eagle Industry Co., Ltd.
发明人： ARIKAWA Tatsuhiro
IPC分类号： F15B1/14
摘要： The present invention is to provide an accumulator in which pressure in a housing can be released when a temperature becomes high due to fire, etc.
The accumulator 1 includes a housing 2 having a sealing face 25 and a fluid inlet/outlet passage 24; and a bellows 3 fixed at one end to the housing 2 such that an inner space of the housing 2 is hermetically partitioned by the bellows 3 into an interior and an exterior of the bellows 3. The bellows 3 includes a bellows main body 31 capable of expanding and contracting and a bellows cap 32 provided with a sealing member 36 covered with an elastic body 36 that is opposed to and capable of being closely attached to the sealing face 25 of the housing 2. The fluid inlet/outlet passage 24 of the housing 3 is closed upon a close attachment of the elastic body 35 to the sealing face 25. The accumulator 1 further includes a spacer 34 placed between the housing 2 and the bellows cap 32 so as to surround the sealing member 36. The spacer 34 has a communication passage 37 providing communication between an inside and an outside of the spacer 34.

3. 发明公开

EP3366930A1 ACCUMULATOR 审中-公开
公开(公告)号：EP3366930A1
公开(公告)日：2018-08-29
申请号：EP16857364.0
申请日：2016-10-14
申请人： Eagle Industry Co., Ltd.
发明人： ARIKAWA Tatsuhiro
IPC分类号： F15B1/10 , F15B1/14
CPC分类号： F15B1/103 , F15B1/10 , F15B1/14 , F15B2201/205 , F15B2201/3153 , F15B2201/3157
摘要： There is provided an accumulator capable of suppressing collision of a metal bellows with a pressure vessel. A partition unit 300 includes: a tubular metal bellows 310 , one end of which is side fixed to a pressure vessel 200 and which expands and contracts according to pressure in a fluid chamber and pressure in a gas chamber; and a bellows cap 320 which is fixed to another end side of the metal bellows 310, the partition unit 300 further including: a seal member 330 which is provided between the bellows cap 320 and a port 221 and seals a working fluid on the side of the fluid chamber via the metal bellows 310 when the metal bellows 310 contracts; and a sliding unit 350 which is fixed to the bellows cap 320 and slides in an expansion/contraction direction of the metal bellows 310 relative to a stay 400.

4. 发明公开

EP3457004A1 SEALING STRUCTURE 审中-公开
公开(公告)号：EP3457004A1
公开(公告)日：2019-03-20
申请号：EP17796131.5
申请日：2017-05-09
申请人： Eagle Industry Co., Ltd.
发明人： ARIKAWA Tatsuhiro
IPC分类号： F16J15/18 , F15B15/14 , F16C33/74 , F16F9/32 , F16F9/36
摘要： This invention provides a seal structure which enables a reduction in the number of components and an improvement of the stability in sliding of the seal portion or the backup ring portion. In order to achieve the object, a sealing structure seals two members which move relative to each other, in which a seal portion or a backup ring portion placed between the two members and a bearing portion similarly placed between the two members are formed into an integral structure. The seal portion or the backup ring portion is integrally provided to one end portion in the axial direction or both end portions in the axial direction of the bearing portion having a cylindrical shape. The seal structure is used as a piston seal or a rod seal in hydraulic and pneumatic devices in which a piston is inserted into a shell or a cylinder tube.

5. 发明公开

EP3279481A1 ACCUMULATOR 有权
标题翻译：累加器
公开(公告)号：EP3279481A1
公开(公告)日：2018-02-07
申请号：EP16772714.8
申请日：2016-03-28
申请人： Eagle Industry Co., Ltd.
发明人： ARIKAWA Tatsuhiro , YAMASHITA Matsuyoshi , SATO Koji
IPC分类号： F15B1/14
CPC分类号： F15B1/14 , F15B1/103 , F15B2201/205 , F15B2201/3153 , F15B2201/3158 , F16F9/096
摘要： An accumulator is provided, which is aimed at stabilization in mounting state of a damping member while diminishing the impact on a metal bellows. In an accumulator (100), a damping member (190) formed slidably at the inner circumferential surface of a pressure vessel (110) and suppressing the oscillation of a metal bellows (130) while keeping a gap between the metal bellows (130) and the inner circumferential surface of the pressure vessel (110) is mounted at at least one site of a plurality of annular valley parts of the metal bellows(130) including a plurality of annular crest parts and the plurality of annular valley parts alternately formed therein. In the damping member (190), a radially inward tip is fitted with the valley part, and a radially outward tip is longer than the crest part of the metal bellows radially and outwardly.
摘要翻译：提供一种蓄能器，其目的是在减小对金属波纹管的冲击的同时稳定减振构件的安装状态。在储液器（100）中，在压力容器（110）的内周面滑动自如地形成缓冲部件（190），抑制金属波纹管（130）的振动，同时保持金属波纹管（130）与压力容器110的内圆周表面安装在金属波纹管130的多个环形波谷部分中的至少一个位置处，该金属波纹管130包括交替形成在其中的多个环形波峰部分和多个环形波谷部分。在阻尼部件（190）中，径向内侧的前端与谷部嵌合，径向外侧的前端比金属波纹管的顶部径向外侧长。

6. 发明公开

EP3029337A1 ACCUMULATOR 有权
标题翻译：累加器
公开(公告)号：EP3029337A1
公开(公告)日：2016-06-08
申请号：EP14831976.7
申请日：2014-05-26
申请人： Eagle Industry Co., Ltd.
发明人： ARIKAWA Tatsuhiro
IPC分类号： F15B1/08 , F16B5/08
CPC分类号： F16L55/24 , F15B1/08 , F15B2201/415 , F16B5/08
摘要： Provided is an accumulator that prevents foreign matters from entering a space S between a housing and a gas plug that is fitted to a concave portion of the housing. An accumulator (100) includes: a housing (110) having an injection opening (112b) into which pressure gas is injected; and a gas plug (150) occluding the injection opening (112b), and seals the pressure gas in the housing (110) by the gas plug (150) that is welded to the housing (110) with a welding portion (151) of the gas plug (150) being melted, wherein the housing (110) includes: a concave portion to which the gas plug (150) occluding the injection opening (112b) is fitted, and to which the gas plug (150) is welded with the welding portion (151) being melted on its bottom surface (110a); and an inclined surface (110c) that extends from an edge portion of the concave portion toward an outside of the housing (110) such that a distance from a center of the injection opening (112b) increases, and the gas plug (150) includes a flange (152) which makes contact with the inclined surface (110c) in a state of being fitted and welded to the concave portion.
摘要翻译：本发明提供一种蓄积器，其防止异物进入壳体与安装于壳体的凹部的气塞之间的空间S. 一种蓄液器（100）包括：具有注入开口（112b）的壳体（110），注入压力气体; 和堵塞注入开口（112b）的气体塞（150），并且通过用焊接部（151）焊接到壳体（110）的气体塞（150）来密封壳体（110）中的压力气体（150）熔化，其中壳体（110）包括：凹入部分，堵塞喷射开口（112b）的气塞（150）装配到该凹入部分，并且气塞（150）与其焊接焊接部分（151）在其底表面（110a）上熔化; 以及从所述凹部的边缘部朝向所述壳体（110）的外部延伸的倾斜面（110c），使得与所述喷射开口（112b）的中心之间的距离增加，并且所述气体塞（150）包括在嵌入并焊接到凹部的状态下与倾斜表面（110c）接触的凸缘（152）。

7. 发明公开

EP3591265A1 BELLOW 有权
公开(公告)号：EP3591265A1
公开(公告)日：2020-01-08
申请号：EP18761547.1
申请日：2018-02-26
申请人： Eagle Industry Co., Ltd.
发明人： ARIKAWA Tatsuhiro
IPC分类号： F16J3/04 , F16J15/52
摘要： A bellows excellent in durability is provided.
In a bellows 10 in an accordion shape where crest parts 10A with U-shaped cross sections and trough parts 10B with U-shaped cross sections are repeatedly formed via slope parts 20, 30, the both slope parts 20, 30 leading to the crest part 10A comprises first portions α, second portions β, third portions γ, and fourth portions δ which are continuously connected, in description order, to one another from the crest part 10A toward the adjacent trough parts 10B, 10B, and in a free length state of the bellows 10, a separation distance between the second portions β of the both slope parts 20, 30 is longer than separation distances between the first portions α and between the third portions γ (h2>h1, h3).

8. 发明公开

EP3578828A1 ACCUMULATOR 有权
公开(公告)号：EP3578828A1
公开(公告)日：2019-12-11
申请号：EP18748030.6
申请日：2018-01-24
申请人： Eagle Industry Co., Ltd.
发明人： ARIKAWA Tatsuhiro
IPC分类号： F15B1/14
摘要： The present invention is to provide an accumulator whose life is long without specifically processing a sealing member.
An accumulator 1 comprising a housing 2 having a sealing face 25 and a fluid inlet/outlet passage 24, a bellows 3 fixed at least one end to the housing 2 such that an inner space of the housing 2 such that an inner space of the housing 2 is hermetically partitioned by the bellows 3 into an interior and an exterior of the bellows 3, the bellows 3 including a bellows main body 31 capable of expanding and contracting and a bellows cap including an annular seal holder, and a sealing member 35 formed by covering a disc-shaped substrate 36 with an elastic body 37 that is opposed to and capable of being closely attached to the sealing face 25 of the housing 2, the sealing member is 35 held by a holding portion 34c of the annular seal holder 34 on an inner diameter side of the annular seal holder 34, the fluid inlet/outlet passage 24 of the housing 2 being closed upon a close attachment of the elastic body 37 to the sealing face25.
Through holes 38, 38,... passing through in a radial direction are provided in the seal holder 34, and communication passages 39, 39,... extending in the radial direction so as to partially form a space A1 providing communication between the through holes 38, 38,... and the fluid inlet/outlet passage 24 are provided in the seal holder 34 or the sealing face 25.

9. 发明公开

EP3404271A1 ACCUMULATOR 有权
公开(公告)号：EP3404271A1
公开(公告)日：2018-11-21
申请号：EP16885084.0
申请日：2016-12-13
申请人： Eagle Industry Co., Ltd.
发明人： ARIKAWA Tatsuhiro
IPC分类号： F15B1/10
CPC分类号： F15B1/103 , F15B1/10 , F15B2201/20
摘要： To provide an accumulator having a buffering action for protecting a sealing part from a stay, in which a bellows cap can be promptly separated from the stay at the time of a pressure boost in a pressure pipe.
In a pressure container (2), a tubular bellows (6), a bellows cap (10) divisionally defining a liquid chamber (M) and a gas chamber (G) in cooperation with the bellows, and a through hole (33) are provided, and a stay (30) partitioning the liquid chamber (M) into a closed liquid chamber (Mc) on a side of the bellows (6) and an open liquid chamber (Mo) on a side of the liquid pressure port is provided, the bellows cap (10) includes an elastic abutment part (23) provided with an annular sealing part (25) positioned around the through hole (33) to face the through hole, and a buffering part (26) positioned on a radially inner side of the sealing part (25), and communication passages (27A) always communicating with the through hole (33) are formed in the buffering part of the elastic abutment part (23).

10. 发明公开

EP3118463A1 ACCUMULATOR 有权
标题翻译：累加器
公开(公告)号：EP3118463A1
公开(公告)日：2017-01-18
申请号：EP15762387.7
申请日：2015-03-11
申请人： Eagle Industry Co., Ltd.
发明人： ARIKAWA Tatsuhiro
IPC分类号： F15B1/08
CPC分类号： F15B1/103 , F15B1/021 , F15B20/007 , F15B2201/3153 , F15B2201/41
摘要： The present invention reduces the number of components in a mechanism for absorbing pressure fluctuations during liquid expansion, simplifies assembly, and reduces component costs. In order to do so, this accumulator has a seal holder provided in a bellows cap, and a plate-shaped seal held by the seal holder. The seal holder is provided with an inward-facing flange-shaped outer-circumferential-side engaging part, while the seal is provided with an outward-projection-shaped inner-circumferential-side engaging part which comprises a rubber elastic, engages the outer-circumferential-side engaging part, and is provided on the outer circumference of the seal body. When a liquid expands inside a liquid chamber while the liquid chamber is closed, the outer-circumferential-side engaging part elastically deforms the inner-circumferential-side engaging part, the seal remains seated on the seating surface as a result of the difference between the pressure-receiving surface areas on both surfaces thereof, and the bellows cap moves to a position at which the liquid pressure and the gas pressure are balanced.
摘要翻译：本发明减少了用于吸收液体膨胀期间的压力波动的机构中的部件的数量，简化了组装，并且降低了部件成本。为此，该蓄能器具有设置在波纹管帽中的密封保持器和由密封保持器保持的板形密封件。密封保持器设置有朝内的凸缘形状的外周侧接合部分，而密封件设置有包括橡胶弹性体的向外突出形状的内周侧接合部分，周向上的接合部分，并且设置在密封体的外周上。当液体室在液体室关闭的同时在液体室内膨胀时，外周侧卡合部使内周侧卡合部弹性变形，因此，密封件保持落座于座面上在其两个表面上的压力接收表面区域，并且波纹管帽移动到液压和气压平衡的位置。

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