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公开(公告)号：US20190184424A1
公开(公告)日：2019-06-20
申请号：US16322123
申请日：2017-08-03
Applicant: NIDEC SANKYO CORPORATION
Inventor： Tadashi TAKEDA , Hiroshi KITAHARA , Masao TSUCHIHASHI
Abstract: A vibration generating device that can make a relatively heavy vibration member produce sufficient vibration. A vibration generating device has: a vibration member; multiple actuators that are connected to the vibration member; and a stationary element that supports the vibration member via the multiple actuators. Each of the multiple actuators comprises: a supporting body to which the vibration member is fixed; a movable element; a first elastic member that is connected to the supporting body and the movable element; and a magnetic drive circuit (a first magnetic drive circuit and a second magnetic drive circuit) that makes the movable element move linearly back and forth relative to the supporting body. The multiple actuators are supported by the stationary element via a second elastic member. The first elastic member and the second elastic member comprise a gelatinous silicone gel or the like.
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公开(公告)号：US20190182601A1
公开(公告)日：2019-06-13
申请号：US16323851
申请日：2017-08-03
Applicant: NIDEC SANKYO CORPORATION
Inventor： Tadashi TAKEDA , Hiroshi KITAHARA , Masao TSUCHIHASHI
Abstract: A linear actuator may include a movable element having a plurality of permanent magnets stacked in a direction of an axis line; a stationary element comprising a plurality of coils surrounding a circumferential section of the permanent magnets, the plurality of coils being placed along the axis line; and viscous elastic members inserted between the movable element and the stationary element. The plurality of permanent magnets are arranged such that, among adjacent permanent magnets of the plurality of permanent magnets, sides of the adjacent permanent magnets facing each other have a same polarity. The viscous elastic members are provided at a plurality of locations being separate in the direction of the axis line, in a space sandwiched in a radial direction by the movable element and the stationary element.
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公开(公告)号：US20190070635A1
公开(公告)日：2019-03-07
申请号：US15767143
申请日：2017-01-24
Applicant: NIDEC SANKYO CORPORATION
Inventor： Tadashi TAKEDA , Hiroshi KITAHARA , Masao TSUCHIHASHI
Abstract: This application provides an actuator capable of causing vibrations in multiple directions to a movable body. For instance, an actuator has a supporting body, a movable body, and a connecting body connected to the movable body and the supporting body. Between the supporting body and the movable body, a first coil and a second coil are stacked in two stages in the first direction, and a first magnet and a second magnet are placed on both ends of each of the first coil and the second coil stacked in two stages in the first direction in a first magnetic drive circuit. The first magnetic drive circuit is provided at two positions separated in the second direction. Between the first magnetic drive circuits separated in the second direction, a stopper mechanism is formed to restrict the movable range of the movable body in the direction perpendicular to the first direction.
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公开(公告)号：US20180294690A1
公开(公告)日：2018-10-11
申请号：US15570875
申请日：2016-09-12
Applicant: NIDEC SANKYO CORPORATION
Inventor： Tadashi TAKEDA , Hiroshi KITAHARA , Masao TSUCHIHASHI
Abstract: A linear actuator may include a stationary element a movable element a magnetic drive mechanism structured to linearly drive the movable element in a driving direction relative to the stationary element and a gel damper member provided between the stationary element and the movable element. The gel damper member may be held between a first part in the stationary element that faces in a direction perpendicular to the driving direction and a second part in the movable element that faces the first part in a direction perpendicular to the driving direction.
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公开(公告)号：US20170310203A1
公开(公告)日：2017-10-26
申请号：US15507480
申请日：2015-12-18
Applicant: NIDEC SANKYO CORPORATION
Inventor： Tadashi TAKEDA , Takeshi SUE , Masao TSUCHIHASHI , Hiroshi KITAHARA
CPC classification number: H02K33/16 , B06B1/045 , G03F7/70758 , H02K2201/18
Abstract: An actuator may include a supporting body; a movable body; a connecting body connected to the movable body and the supporting body and having elasticity or viscoelasticity; a first magnetic driving circuit including first magnets and a first coil held by the supporting body and movable body, the first coil being opposed to the first magnets in a first direction, and the first magnetic driving circuit generating driving the movable body in a second direction which perpendicularly intersects with the first direction; and a second magnetic driving circuit including second magnets and a second coil held by the supporting body or the movable body, the second coil being opposed to the second magnets in the first direction, and the second magnetic driving circuit driving the movable body in a third direction which perpendicularly intersects with the first direction and crosses the second direction.
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Patent Agency Ranking
公开(公告)号：US20220179230A1
公开(公告)日：2022-06-09
申请号：US17530459
申请日：2021-11-19
Applicant: NIDEC SANKYO CORPORATION
Inventor： Takeshi SUE , Tadashi TAKEDA , Shinji MINAMISAWA
Abstract: An optical unit with a shake correction function includes a movable module and a fixed body. The movable module has a lens and is supported by the fixed body to be capable of moving in a direction orthogonal to an optical axis of the lens. The fixed body surrounds the movable module from an outer periphery side. The movable module includes a first substrate and a second substrate, with a thickness direction of either substrate being consistent with the direction along the optical axis. An image sensor is disposed on the first substrate. The second substrate is electrically connected to the first substrate to overlap the first substrate on an image side, and is smaller in shape than the first substrate when viewed along the optical axis of the lens. A flexible printed circuit board is led out from an outer circumferential surface of the second substrate.
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公开(公告)号：US20210104943A1
公开(公告)日：2021-04-08
申请号：US16499312
申请日：2018-03-23
Applicant: NIDEC SANKYO CORPORATION
Inventor： Hiroshi KITAHARA , Tadashi TAKEDA , Masao TSUCHIHASHI
Abstract: Each of holders which holds a coil or a magnet used in a magnetic drive circuit, in a stacked manner in a first direction without causing rattling in an actuator (1), a first coil holder (65) of a first magnetic drive circuit (6), a second coil holder (75) of a second magnetic drive circuit (7), and a third coil holder (85) of a third magnetic drive circuit (8) are arranged in a stacked manner in a Z direction, and the first coil holder, the second coil holder, and the third coil holder are fastened in the Z direction by a restraining member (90). Thus, the first coil holder, the second coil holder, and the third coil holder can be arranged in a stacked manner in the Z direction without causing rattling. The restraining member is constituted by a first member (91) and a second member (92) having the same configuration, including size and shape.
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公开(公告)号：US20200161955A1
公开(公告)日：2020-05-21
申请号：US16627338
申请日：2018-06-11
Applicant: NIDEC SANKYO CORPORATION
Inventor： Hiroshi KITAHARA , Tadashi TAKEDA , Masao TSUCHIHASHI
Abstract: In the actuator, the viscoelastic members are arranged at positions at which the support body and the movable body face each other in the first direction, and the magnetic drive circuit drives the movable body in the second direction which crosses the first direction. The viscoelastic members connect the movable body and the support body together while having the thickness direction thereof in the first direction and extending in the second direction. Therefore, resonance caused when the movable body is vibrated can be restricted. Reproducibility of vibration acceleration corresponding to the input signals can be improved by utilizing the spring elements of the viscoelastic members in the shearing direction, thus enabling the actuator to vibrate with delicate nuances. Further, the viscoelastic members can be prevented from being pressed in the thickness direction and greatly deformed, therefore, preventing the gap between the movable body and the support body from greatly varying.
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公开(公告)号：US20200161954A1
公开(公告)日：2020-05-21
申请号：US16627336
申请日：2018-06-11
Applicant: NIDEC SANKYO CORPORATION
Inventor： Masao TSUCHIHASHI , Tadashi TAKEDA , Hiroshi KITAHARA
Abstract: In a magnetic drive circuit of an actuator, a first yoke and a second yoke are disposed on both sides in a first direction across a coil, and a first magnet and a second magnet are fixed to the first yoke and the second yoke. The first yoke includes a first connecting plate part and a second connecting plate part that extend toward the second yoke. Thus, welding of the first connecting plate part and the second yoke and the second connecting plate part and the second yoke can be efficiently performed on a different side in the first direction (a side where the second yoke is located).
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公开(公告)号：US20200161038A1
公开(公告)日：2020-05-21
申请号：US16627342
申请日：2018-06-11
Applicant: NIDEC SANKYO CORPORATION
Inventor： Masao TSUCHIHASHI , Tadashi TAKEDA , Hiroshi KITAHARA
Abstract: In the actuator, the first end plate part of the first cover member in the support body is layered on one side in the first direction of the holder and faces the first yoke of the movable body from one side in the first direction. The second end plate part of the second cover member in the support body is layered on the other side in the first direction of the holder and faces the movable body from the other side in the first direction. Thus, the first viscoelastic member interposed between the movable body and the first end plate part in the first direction properly contacts with the movable body and the first end plate part. The second viscoelastic member interposed between the movable body and the second end plate part in the first direction properly contacts with the movable body and the second end plate part.
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