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公开(公告)号:US12098059B2
公开(公告)日:2024-09-24
申请号:US17051960
申请日:2018-12-03
Applicant: Mitsubishi Electric Corporation
Inventor: Eiichi Saito , Takahide Hirai , Seiji Watanabe , Daisuke Nakazawa , Daiki Fukui , Tomohiro Asamura , Yusuke Chikada
IPC: B66B7/06 , B66B1/28 , B66B1/34 , B66B5/02 , B66B5/12 , B66B7/10 , B66B7/12 , F16F13/00 , F16F15/00 , F16F15/03 , F16F15/04 , F16F15/02
CPC classification number: B66B7/06 , B66B1/28 , B66B1/3476 , B66B5/022 , B66B5/125 , B66B7/10 , B66B7/1215 , F16F13/007 , F16F15/002 , F16F15/03 , F16F15/035 , F16F15/04 , F16F15/022 , F16F2222/06 , F16F2228/007 , F16F2228/063 , F16F2230/0023 , F16F2230/0029 , F16F2230/18
Abstract: An object of the present invention is to provide a sway amount estimation system that can suppress a reduction in user convenience that would occur if the operation method is switched more than necessary. A sway amount estimation system (300) includes a sensing unit (78), a judgment unit (80), and an estimation unit (79). The estimation unit (79) calculates an estimated value of the amount of sway of an elevator rope due to vibration caused by building sway based on the sway sensed by the sensing unit (78) and an estimation model incorporating the effect of the displacement amplification of the displacement amplifier (7). The judgment unit (80) judges if the estimated value calculated by the estimation unit (79) is greater than a threshold for switching the operation method for the elevator apparatus (11).
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公开(公告)号:US12049385B2
公开(公告)日:2024-07-30
申请号:US17051799
申请日:2018-12-03
Applicant: Mitsubishi Electric Corporation
Inventor: Eiichi Saito , Takahide Hirai , Seiji Watanabe , Daisuke Nakazawa , Daiki Fukui , Tomohiro Asamura , Yusuke Chikada
IPC: B66B7/06 , B66B1/28 , B66B1/34 , B66B5/02 , B66B5/12 , B66B7/10 , B66B7/12 , F16F13/00 , F16F15/00 , F16F15/02 , F16F15/03 , F16F15/04
CPC classification number: B66B7/06 , B66B1/28 , B66B1/3476 , B66B5/022 , B66B5/125 , B66B7/10 , B66B7/1215 , F16F13/007 , F16F15/002 , F16F15/03 , F16F15/035 , F16F15/04 , F16F15/022 , F16F2222/06 , F16F2228/007 , F16F2228/063 , F16F2230/0023 , F16F2230/0029 , F16F2230/18
Abstract: An object of the invention is to provide a vibration damping system that can avoid the occurrence of resonance of an elevator rope regardless of the vibration frequency of a vibration source. A vibration damping system (200) includes a displacement amplifier (7), a calculation unit (66), and a displacement amplification control unit (67). The displacement amplifier (7) is arranged along a given position in the longitudinal direction of the elevator rope. The displacement amplifier (7) amplifies a displacement due to vibration of the elevator rope based on a variable amplification factor. The calculation unit (66) calculates the natural frequency of the elevator rope. The displacement amplification control unit (67) controls the displacement amplification of the displacement amplifier (7) based on the natural frequency calculated by the calculation unit (66) and a preset vibration frequency.
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公开(公告)号:US12018733B2
公开(公告)日:2024-06-25
申请号:US17412654
申请日:2021-08-26
Applicant: VIASAT, Inc.
Inventor: Steven Shrinkle , Kenneth Larson , Christopher Haas
IPC: F16F9/30 , F16F15/04 , G10K11/168 , H03H9/05
CPC classification number: F16F9/306 , F16F15/04 , G10K11/168 , H03H9/0504 , B32B2307/56
Abstract: Methods, systems, and devices are described for isolating a crystal oscillator assembly from shock and/or vibration inputs. A system may include one or more vibration isolators coupled between the crystal oscillator assembly and the base structure, and each of the vibration isolators may include a spring material layer and a damping material layer. The spring material layer may provide a spring force between the crystal oscillator assembly and the base structure. The damping material layer may be adhered to at least one side of the spring material layer, and may provide a damping force between the crystal oscillator assembly and the base structure. Some vibration isolators may further include a constraint layer adhered to the damping material layer, such that the damping material layer is coupled between the constraint layer and the spring material layer.
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公开(公告)号:US20240167533A1
公开(公告)日:2024-05-23
申请号:US18551488
申请日:2022-03-25
Applicant: Autostore Technology AS
Inventor: Trond Austrheim , Martin Fitje , Børge Bekken
CPC classification number: F16F15/04 , A47B96/14 , B65G1/0464 , F16F2230/0041
Abstract: A bracing arrangement is for a framework structure of an automated storage and retrieval system. The framework structure includes a rail system arranged at an upper level of the framework structure. The rail system includes a first set of parallel rails arranged in a horizontal plane and extending in a first direction, and a second set of parallel rails arranged in the horizontal plane and extending in a second direction which is orthogonal to the first direction, which first and second sets of rails form a grid pattern in the horizontal plane including a plurality of adjacent grid cells. Each grid cell includes a grid opening defined by a pair of neighboring rails of the first set of rails and a pair of neighboring rails of the second set of rails. The framework structure provides a plurality of storage columns. Each column is arranged to store a respective stack of storage containers where the storage columns are located beneath the rail system and each storage column is located vertically below a grid opening. The rail system is arranged to guide a plurality of automated vehicles that operate on the rail system. The bracing arrangement includes an elongated, rigid bracing member, and a damping mechanism. The elongated, rigid bracing member is coupled at one end to the framework structure, at or near an upper level of the framework structure and at an opposite end to a grounding point. The damping mechanism is connected to an end of the bracing member. The damping mechanism is arranged to respond to forces from lateral movement in the upper level of the framework structure transferred to the damper mechanism via the elongated bracing member. The damping mechanism further includes a releasable locking mechanism which isolates the damping mechanism until a threshold force exerted on the locking mechanism via the bracing member is exceeded, such that after the threshold value is exceeded the releasable locking mechanism is tripped allowing the damper to dissipate kinetic energy from lateral movement of the upper level of the framework structure.
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公开(公告)号:US11963451B2
公开(公告)日:2024-04-16
申请号:US16972213
申请日:2019-06-06
Applicant: PYTHEAS TECHNOLOGY
Inventor: Gilles Grosso , Frédéric Mosca
CPC classification number: H10N30/30 , F16F15/007 , F16F15/04 , H02N2/181 , H10N30/04
Abstract: A system for passive damping of mechanical vibrations generated by a vibrating structure supported by a support, including a transducer interposed between the vibrating structure and the support to transform mechanical energy of vibrations into electrical energy. The transducer includes a flextensional structure having a first axis perpendicular to a second axis, a stack of piezoelectric elements adapted to produce electrical energy when stressed, the stack stressed in compression by the flextensional structure along the first axis so that deformation of the structure modifies the compressive stress applied to the stack, two peripheral fasteners are secured to the flextensional structure, each fastener disposed along the second axis, a first fastener for securing the flextensional structure to the vibrating structure, a second fastener for securing the flextensional structure to the support, at least one fastener integrates an elastic suspension, a shunt connected to the piezoelectric stack to dissipate electrical energy.
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公开(公告)号:US20240110611A1
公开(公告)日:2024-04-04
申请号:US18477007
申请日:2023-09-28
Applicant: NITTO KOHKI CO., LTD.
Inventor: Masahiro Satoh
IPC: F16F15/04
CPC classification number: F16F15/04
Abstract: A vibration isolation structure includes a mounting structure part secured to a pump, an elastic vibration isolation member attached to the mounting structure part, and an upper securing member secured to the mounting structure part to hold the elastic vibration isolation member. The upper securing member has first and second body portions opposed to each other across a tabular mounting portion of the mounting structure part in a thickness direction thereof. A connecting portion connects together the first and second body portions, and a locking projection extends from the first body portion. The upper securing member is secured to the mounting structure part by engagement of the locking projection with a locking surface of the mounting structure part. The upper securing member holds the elastic vibration isolation member to the tabular mounting portion by engaging the elastic vibration isolation member at a side closer to a side surface.
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公开(公告)号:US20240019703A1
公开(公告)日:2024-01-18
申请号:US17890001
申请日:2022-08-17
Applicant: Meta Platforms Technologies, LLC
Inventor: Richard FARRELL , Michiel Koen CALLENS , Yu SHI
CPC classification number: G02B27/0176 , G02B27/0172 , G02B6/0093 , F16F15/04 , G03F7/0005 , G02B2027/0178 , G02B2027/0169 , G02B2027/0161
Abstract: An optical assembly to be used in a head-mounted display (HMD) device or similar may include a first optical component and a second optical component, where the first optical component and the second optical component are layered in the optical assembly. The optical assembly may also include a waveguide positioned between the first optical component and the second optical component. One or more shock absorbers may be positioned on surfaces of the first optical component and the second optical component facing the waveguide. The shock absorbers may be a support that touches a surface of the waveguide or a stand-off that extends toward the waveguide with a gap. The shock absorbers may also include a pillar, a cone, an inverted cone, an inverted pillar, a spring, a double helix, a three-dimensional mesh, a strap, a bumper, a sphere, or a high aspect ratio 3D mesh tower.
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公开(公告)号:US20240002201A1
公开(公告)日:2024-01-04
申请号:US18470033
申请日:2023-09-19
Applicant: BYD COMPANY LIMITED
Inventor: Dongliang XIAO , Longwen LU
CPC classification number: B66F9/0759 , F16F15/04
Abstract: A shock absorption pedal with adjustable resistance includes: a fixed guide rail, fixedly connected to a vehicle body; a sliding frame, arranged in a groove of the fixed guide rail, and movable vertically along the fixed guide rail; and a support plate, fixedly connected to the sliding frame. A displacement regulating mechanism is arranged on the fixed guide rail. One end of the displacement regulating mechanism is arranged outside the groove of the fixed guide rail, and another end of the displacement regulating mechanism is connected to one end of a shock absorption spring. Another end of the shock absorption spring is fixedly connected to the sliding frame. A position of the sliding frame is regulable by the displacement regulating mechanism, to adjust a length of the shock absorption spring.
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公开(公告)号:US11739810B2
公开(公告)日:2023-08-29
申请号:US17973572
申请日:2022-10-26
Applicant: Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology , Wenzhou University
Inventor: Bideng Liu , Yongli Yang , Yubin Wu , Ruixiang Song , Qiong Wu
CPC classification number: F16F15/04 , E01D19/00 , F16F7/00 , F16F2228/063
Abstract: The present invention discloses a bidirectional collapse-proof damper with a macroscopic NPR structure and a bridge structure having the same, comprising a sleeve and a sliding rod; by adding a structure of a reducing part and a limiting body, a sliding gap exists between both ends of the limiting body and both inner ends of the reducing part; the rod body is connected with the inner side wall of the sleeve through an elastic element; the limiting body and the rod body can realize bidirectional slip in the sleeve, which have multi-level seismic performance.
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公开(公告)号:US20230258222A1
公开(公告)日:2023-08-17
申请号:US17672637
申请日:2022-02-15
Applicant: Raytheon Company
Inventor: Zaffir A. Chaundhry , Ulf Jonsson , Jake B. Range
CPC classification number: F16B1/0014 , F16F15/04
Abstract: A multi-axis payload isolation device for isolating a payload from outside motions. The multi-axis payload isolation device includes a payload mount base, a housing, and a flexure. The payload mount base is configured to support a payload. The housing includes an interior cavity for receiving and supporting the payload mount base. The flexure includes a plurality of radial supports and a common hub. The plurality of radial supports attach the payload mount base to the housing and are made of a superelastic shape-memory alloy. The common hub is configured to connect each of the plurality of radial supports to the payload mount base.
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