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公开(公告)号：US20220103055A1
公开(公告)日：2022-03-31
申请号：US17487184
申请日：2021-09-28
摘要： A vibration actuator includes a fixing body including a base part, and a magnetic suction force generation part provided at a core on which a coil is wound; a movable body including a connecting part, and a suction part suctioned by the magnetic suction force generation part through energization to the coil; and a plurality of elastic support parts. The suction part is disposed in a vicinity of a magnetic pole of the core of the magnetic suction force generation part with an air gap between the suction part and the magnetic pole in a vibration direction, and the suction part is disposed at a center portion in the vibration direction of the movable body supported by the plurality of elastic support parts.
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公开(公告)号：US20210149491A1
公开(公告)日：2021-05-20
申请号：US17098386
申请日：2020-11-15
摘要： Provided is a vibration actuator that gives vibration to a vibration presenting unit that presents vibration depending on a pressing operation, the vibration actuator comprising: a fixing part; a movable part fixed to the vibration presenting unit; an elastic support part connected to the fixing part and the movable part, and movably supports the movable part with respect to the fixing part; and a support-part side fixing part fixed to the elastic support part in the movable part; wherein a strain body that is strained in accordance with the pressing operation on the vibration presenting unit and a strain detection unit configured to detect strain of the strain body are provided between the support-part side fixing part and a presenting-unit side fixing part fixed to the vibration presenting unit, and the movable part is configured to vibrate by electromagnetic driving in accordance with the strain of the strain body.
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公开(公告)号：US20230067284A1
公开(公告)日：2023-03-02
申请号：US18053392
申请日：2022-11-08
申请人： Yuki TAKAHASHI , Tomoya ISHITANI
发明人： Yuki TAKAHASHI , Tomoya ISHITANI
摘要： Provided is a vibration actuator that includes: a coil; a core around which the coil is wound, the core including both ends projecting from the coil; a yoke formed of a magnetic material and disposed opposite to the both ends of the core at a position adjacent to the both ends of the core with a gap provided between the yoke and the both ends of the core in a direction orthogonal to a winding axis of the coil; and an elastic part fixed between the core and the yoke and configured for elastic support to enable a movement between the core and the yoke in a direction opposite to at least one of the both ends of the core.
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公开(公告)号：US20220111418A1
公开(公告)日：2022-04-14
申请号：US17298054
申请日：2019-11-26
摘要： Provided is a control device capable of reducing cost and thickness by using an electromagnetic actuator, and capable of efficiently generating a thrust suitable for a haptic feeling feedback to an operator who touches and operates thereto. The control device controls the electromagnetic actuator that drives an operation device supported to be elastically vibrated in one direction of a vibrating direction thereof; includes a current pulse supply unit configured to supply a plurality of drive current pulses to a coil of the electromagnetic actuator as a drive current for driving the operation device in response to a touch operation of the operation device; and an interval between peaks for each of the drive current pulses is in a range of ½ times to 1 times a vibration period of an elastic vibration.
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公开(公告)号：US20220103054A1
公开(公告)日：2022-03-31
申请号：US17487130
申请日：2021-09-28
摘要： A vibration actuator includes: a fixing body including a base part and a magnetic suction force generation part including a core on which a coil is wound; a movable body including a presentation part connecting part connectable to a vibration presentation part, and a suction part composed of a magnetic material; and a first elastic support part and a second elastic support part, the first elastic support part and the second elastic support part being configured to elastically support the movable body. A suction force of the magnetic suction force generation part is generated by energization to the coil, and a vibration along the base extending direction is applied to the vibration presentation part through the movable body.
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公开(公告)号：US20200001326A1
公开(公告)日：2020-01-02
申请号：US16481198
申请日：2018-01-25
摘要： A vibration apparatus, which is provided with vibration actuators with which a moving body elastically supported on a fixed body can be vibrated linearly with respect to the fixed body at a resonance frequency, has a mounting case in which multiple vibration actuators are mounted. The multiple vibration actuators oscillate at roughly the same resonance frequency, and in a manner such that the respective oscillation axis lines along the oscillation directions of the moving bodies are parallel to each other and that the center of gravity of the mounting case is interposed between the oscillation axis lines, the vibration actuators are disposed in orientations according to which the actuators excite oscillations in mutually opposite directions on the respective oscillation axis lines.
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公开(公告)号：US20220247292A1
公开(公告)日：2022-08-04
申请号：US17584434
申请日：2022-01-26
申请人： Yuki TAKAHASHI , Tomoya ISHITANI , Junichi HASHINO , Soichi SATO
发明人： Yuki TAKAHASHI , Tomoya ISHITANI , Junichi HASHINO , Soichi SATO
摘要： Provided is a vibration actuator including: a movable part that gives vibration to a vibration presenting part that receives a pressing operation; a vibration generating part that generates the vibration of the movable part in accordance with the pressing operation; a base part; and an elastic support part. The movable part includes: a load detecting part provided between a presentation-part side fixing part and a support-part side fixing part and detecting, as a load, strain due to the pressing operation; and a movement regulating part provided on a side of the presentation-part side fixing part rather than the load detecting part. The movement regulating part regulates movement of the movable part by engaging with an engaged part of the base part via a buffer member when the movable part moves in a direction separating from the base part.
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公开(公告)号：US20190386552A1
公开(公告)日：2019-12-19
申请号：US16471684
申请日：2017-12-19
摘要： In the movable body one of a magnet and a core that has a magnetic pole surface disposed so as to face a magnetic pole surface of the magnet via an air gap and around which a coil is wound is provided on each of both sides across the shaft of the support shaft part in the movable body, and in the fixing body the other is provided facing the magnet or core disposed on both sides of the shaft of the support shaft part in the movable body. The movable body is elastically supported by magnetic attractive force generated between the magnetic pole surfaces at each of both sides across the shaft and vibrates back and forth in the direction of the shaft of the support shaft part with respect to the fixing body by the coil interacting with the magnet.
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公开(公告)号：US20220415142A1
公开(公告)日：2022-12-29
申请号：US17780135
申请日：2020-11-27
IPC分类号： G08B6/00
摘要： This bodily vibration generation device can be mounted to a bodily sensation presentation apparatus and generates, with a simple configuration, suitable vibration corresponding to a sound so that a user bodily senses the vibration. This device has: an electromagnetic actuator that causes, by an inputted drive signal, a movable body being supported so as to be elastically vibratable with respect to a fixed body, to vibrate by driving same in one direction of the vibration directions thereof; an AC signal input unit for inputting an AC signal; and a rectification unit that performs half-wave rectification of the AC signal and outputs the AC signal to the electromagnetic actuator as the drive signal.
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公开(公告)号：US20210111654A1
公开(公告)日：2021-04-15
申请号：US17065518
申请日：2020-10-08
申请人： Tomoya ISHITANI , Yuki TAKAHASHI
发明人： Tomoya ISHITANI , Yuki TAKAHASHI
IPC分类号： H02P25/032
摘要： Provided is a control device for controlling an electromagnetic actuator that vibrates an operation device by driving the operation device supported by an elastic support part so as to be elastically vibrated in one direction in a vibrating direction thereof, the control device comprising: a current pulse supply unit configured to supply a driving current pulse to a coil of the electromagnetic actuator as a driving current for driving the operation device in accordance with a touch operation of the operation device, wherein the current pulse supply unit supplies the drive current pulse capable of starting the elastic vibration as a main driving current pulse, and then supplies the drive current pulse capable of adjusting attenuation period of the elastic vibration as a sub-driving current pulse.
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