Drive device
    1.
    发明授权

    公开(公告)号:US11754156B2

    公开(公告)日:2023-09-12

    申请号:US17287806

    申请日:2019-10-23

    Inventor: Hiroyuki Inagaki

    CPC classification number: F16H25/2021 F16H25/24 E05F15/622

    Abstract: A drive device comprises a housing, a drive portion, a spindle member to rotate by driving of the drive portion, a nut member screwed with the spindle member); a moving member coupled to the nut member, and a rotation regulating portion which suppresses rotation of the nut member to move the nut member) in an axis X direction of the spindle member, wherein the moving member has a fragile portion to be broken by a predetermined force being weaker than a force required to break the nut member, and the fragile portion is configured that a fracture portion with which the nut member is pressable by the moving member toward the drive portion is formable when the fragile portion is broken.

    Extensible/contractible driving device and openable body opening/closing device

    公开(公告)号:US10227811B2

    公开(公告)日:2019-03-12

    申请号:US15529654

    申请日:2015-12-01

    Abstract: This extensible/contractible driving device includes a rotatable driving member configured to be rotated by drive force of a driving unit; a drive force-transmitting member connected to a leading end of the internal cylinder, configured to be driven by the rotatable driving member so as to move along a rotary shaft direction of the rotatable driving member; and an elastic member disposed in the periphery of the drive force-transmitting member, connected to the leading end of the internal cylinder, and configured to apply biasing force in the rotary shaft direction to the drive force-transmitting member. The rotatable driving member, the drive force-transmitting member, and the elastic member include an intervening member (24) stored in an inner space between external and internal cylinders, disposed in the periphery of the internal cylinder, and intervening between the internal cylinder and the external cylinder. The intervening member (24) includes a plurality of component parts (31a, 31b) having a length in a longitudinal direction of the external cylinder. One of the component parts (31a) is displaced relatively with respect to the other component part (31b) so that the intervening member (24) is opened widely outward. Accordingly, it is possible to suppress a problem of slidability caused by distortion in shape of the intervening member (24) and a problem of interference among the composing members.

    Device for opening and closing opening/closing body

    公开(公告)号:US10407967B2

    公开(公告)日:2019-09-10

    申请号:US15310928

    申请日:2015-05-14

    Abstract: An operable and closable body-opening and closing apparatus includes: a rotary drive member configured to be rotationally driven by a driving force of a drive section; a driving-force transmission member configured to be driven by the rotary drive member and thereby move in a rotation axis direction of the rotary drive member; a biasing member disposed on an outer periphery of the driving-force transmission member and configured to give a biasing force to the driving-force transmission member in the rotation axis direction; and a guide member disposed on an outer periphery of the biasing member and configured to guide the driving-force transmission member. The guide member includes a guide portion configured to guide the driving-force transmission member in the rotation axis direction while restricting rotation of the driving-force transmission member, and the driving-force transmission member includes a guided portion configured to be guided by the guide portion.

    Extensible/contractible driving device and opening/closing mechanism

    公开(公告)号:US11203892B2

    公开(公告)日:2021-12-21

    申请号:US15524430

    申请日:2015-11-19

    Abstract: An extensible or contractible driving device that reduces failure caused by water intrusion. A motor (13) is provided in an outer cylinder (7). An inner cylinder (9) is provided on an inner side of the outer cylinder (7), a tip of the inner cylinder has a closing structure, and the inner cylinder relatively moves in an axial direction with respect to the outer cylinder (7). A screw (11) is rotationally driven by a driving force of the motor (13). A guide nut (15) is driven by the screw (11) and moved in a rotation axis direction of the screw (11). A coil spring (17) is disposed on an outer periphery of the screw (11), comes into contact with a tip of the inner cylinder (9), and applies force to the guide nut (15). The screw (11), the guide nut, and the coil spring (17) are housed in an inner space (25) formed by the outer cylinder (7) and the inner cylinder (9). A fluid intake/outlet port (29) is provided at the tip of the inner cylinder (9).

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