Patents Assigned to Mitsui Kinzoku Act Corporation
  • Patent number: 12091889
    Abstract: A motor-vehicle door latch device includes an engagement mechanism including a latch and a ratchet, a base plate fixed to a body housing the engagement mechanism, a casing fixed to the base plate such that a first side surface faces a side surface on a vehicle-exterior side of the base plate, a releasing mechanism including a releasing lever, a locking/unlocking mechanism enabling the ratchet to disengage from the latch and vice versa, an electric mechanism including a locking/unlocking motor and a releasing motor, and a closure mechanism rotating the latch from a half-latched position to a fully-latched position, wherein all members forming the releasing mechanism, the locking/unlocking mechanism, and the electric mechanism are arranged on a second side surface opposite the first side surface of the casing, and all members forming the closure mechanism are arranged between the first side surface of the casing and the base plate.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: September 17, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Naoki Hanaki, Shuntaro Kimura
  • Publication number: 20240305167
    Abstract: The electric actuator comprises an electric brushless motor having a rotor and a stator, and the control board has a plurality of electric components and controls operation of the brushless motor. The control board comprises a main board and a small board that has a smaller planar shape than the main board and that is connected to the main board via a connecting member. The small board has one or more electric components, faces the rotor, and is arranged at a position closer to the rotor than is the main board in the rotation axis direction of the rotor.
    Type: Application
    Filed: February 1, 2024
    Publication date: September 12, 2024
    Applicant: MITSUI KINZOKU ACT CORPORATION
    Inventors: Hiroshi SATO, Shinichiro KITA
  • Patent number: 12084896
    Abstract: A vehicular door lock device includes: a housing; an electrical component that is arranged on the housing; a terminal that is electrically connected to the electrical component and made of a conductive thin plate including a connecting portion configured to connect adjacent conductive portions; and an electrical circuit related to the electrical component, the electrical circuit being formed by dividing the conductive portions from each other by shearing off the connecting portion, wherein the housing includes engagement grooves that are opened at right angles with respect to mounting portions on which the conductive portions of the terminal are mounted, the terminal includes the conductive portions and pins that are arranged at end portions of the conductive portions, bent at right angles, and configured to engage with the engagement grooves, and the pins are formed by folded portions that are obtained by folding end portions of the terminal at 180 degrees.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: September 10, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventor: Takao Taga
  • Patent number: 12071792
    Abstract: A door latch device includes: a first position switch and a second position switch, each including a first contact hole, a second contact hole, and a common contact hole; a common pin configured to be electrically conducted to the common contact hole of the first position switch and the first contact hole of the second position switch by being inserted therein; a first signal pin configured to be electrically conducted to the first contact hole of the first position switch by being inserted therein; and a second signal pin configured to be electrically conducted to the common contact of the second position switch by being inserted therein, wherein the first position switch and the second position switch are configured to perform a switch operation at a same timing of an operation of a predetermined operation detection target.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: August 27, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Osamu Kawanobe, Shintaro Okawa, Yasuyuki Watanabe
  • Patent number: 12060735
    Abstract: A vehicle door operation device includes an inside handle, a full open unlocking lever for transmitting a closing operation of the inside handle to a full open door latch device, and a full closure unlocking lever for transmitting an opening operation of the inside handle to a full closure door latch device. The inside handle has first and projecting portions, and when the inside handle rotates in a first direction by the closing operation, the first projecting portion is brought into abutment with the full open unlocking lever to enable the full open unlocking lever to operate, whereas when the inside handle rotates in a second direction by the opening operation, the second projecting portion is brought into abutment with the full closure unlocking lever to enable the full closure unlocking lever to operate.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: August 13, 2024
    Assignee: Mitsui Kinzoku Act Corporation
    Inventor: Shigenori Hiramoto
  • Patent number: 12044042
    Abstract: A door opening device for an access door includes an upper lock device, a lower lock device, and a handle device, the lower lock device has a first bias member for biasing a lower opening lever in an opposite direction to an unlocking direction, the handle device has a handle into which an unlocking operation is inputted, a first lever to which an upper cable and a lower cable are connected, a second lever which rotates in a first direction in response to an unlocking operation and transmits this rotation to the first lever, and a second bias member for restoring the second lever to an initial position, and the second lever has a play stroke defined between a point in time when the second lever starts to rotate from the initial position to a point in time when the second lever transmits the rotation to the first lever.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: July 23, 2024
    Assignee: Mitsui Kinzoku Act Corporation
    Inventors: Yosuke Matsuda, Tatsuya Takayama, Takao Taga
  • Patent number: 12037818
    Abstract: A door latch device includes: electric components; a machine mechanism; a circuit board; a case; a first cover forming a first housing space in which a motor and the machine mechanism are housed; a second cover forming a second housing space in which the circuit board is housed; and an external waterproof seal disposed between the case and the second cover and waterproofs the second housing space. Further, the case includes: a recessed part forming a part of the second housing space; a surrounding wall surrounding the recessed part; and a seal groove formed along an outer circumference of the surrounding wall and in which the external waterproof seal is disposed, the second housing space is formed by covering the recessed part by the second cover, and an entire circumference between the recessed part and the second cover is waterproofed by the external waterproof seal.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: July 16, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Shintaro Okawa, Yasuyuki Watanabe
  • Patent number: 12031359
    Abstract: An operation relay device for a motor-vehicle door latch includes a base fixed to a door panel of a door, an operation handle pivotably supported to the base, and a link lever transmitting an opening operation by the operation handle to a door latch. The base includes a plurality of fixing parts, and the operation handle is pivotably supported at a position deviating from a center in a front-rear direction on the base, so that a center of gravity of the operation relay device is in a side of the deviating position. The fixing parts except a specific fixing part are respectively fixed to the door panel by a bolt. The specific fixing part is a temporary fixing piece that is integrally formed on the upper portion of the base to be capable of engaging with an engaging hole formed on the door panel.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: July 9, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Yosuke Matsuda, Tatsuya Takayama
  • Patent number: 12023998
    Abstract: An automatic door opening and closing system is provided with: an image capture unit that captures an image of a road surface around the vehicle, including around a door; a door lock unit that locks the door into a closed state; a drive unit that opens/closes the door; an operation unit to which a door opening operation is input; a notification unit that notifies an occupant who has operated the operation unit of information; and a control device. When a door opening operation is input to the operation unit, the control device detects an obstacle present on the road surface around the door using a captured image acquired by the imaging unit. In response to detecting the obstacle, the control device performs at least one of notification of the obstacle detection by the notification unit and invalidation of the door opening operation input to the operation unit.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: July 2, 2024
    Assignee: Mitsui Kinzoku Act Corporation
    Inventor: Mikio Ichinose
  • Patent number: 11976502
    Abstract: A striker on a lower part of a doorway of a vehicle body includes: first and second engagement parts on a metal base and fixed to the vehicle body to be apart from each other to respectively engage with a door latch device on a lower part of a door capable of closing the doorway and a dislocation prevention part adjacent the door latch device; a pair of front and rear engagement pieces on a vehicle interior side of the base respectively opposite the first and second engagement parts; a reinforcing piece between the first and second engagement pieces; and an elastic body fixed to the base by the first and second engagement pieces and the reinforcing piece. The elastic body has a convex portion that abuts against an inner panel of the door when the door is closed. The convex portion is supported by the reinforcing piece.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: May 7, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Yosuke Matsuda, Tatsuya Takayama
  • Patent number: 11965367
    Abstract: A motor-vehicle door latch device includes: a main body; a latch that engages with a striker on a vehicle body side when a door is closed, and is capable of moving from an open position to a fully-latched position; a ratchet provided with a pawl that blocks the latch from rotating to an opening direction by respectively engaging with a half-latched engagement portion and a fully-latched engagement portion of the latch; and a third latch lever that engages with a third engagement portion provided on the latch when the latch is in a third latch position between a half-latched position and the open position of the latch so that the third latch lever is capable of blocking the latch from rotating in the opening direction from the third latch position.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: April 23, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Shintaro Okawa, Takuya Kakumae
  • Publication number: 20240102334
    Abstract: The size of a driving portion for a sliding door is reduced. Drive mechanism drives sliding door that can move along rail provided in a lower part of a vehicle. Drive mechanism comprises: door opening and closing cables each having first end that is fixed to sliding door; and driving portion to which a. second end of door opening cable and a second end of door closing cable are fixed, wherein driving portion drives door opening cable and door closing cable. Driving portion includes: door opening drum to which the second end of door opening cable is fixed and onto which door opening cable is wound; and door closing drum to which the second end of door closing cable is fixed and onto which door closing cable is wound. Door opening drmn and door closing drum are arranged along rail between a front end and a rear end of rail.
    Type: Application
    Filed: November 2, 2020
    Publication date: March 28, 2024
    Applicant: MITSUI KINZOKU ACT CORPORATION
    Inventors: Kazuyuki Sasaki, Shinichiro Kita
  • Patent number: 11939797
    Abstract: A door lock device includes: a latch; a ratchet; an outer lever; an open link; a first elastic member; an inertia lever; a second elastic member; a fitting hole provided to an acting piece protruding from the inertia lever; and a protrusion provided to the open link, wherein when an inertial force equal to or greater than a set value is exerted in a direction from an interior to an exterior, the inertia lever rotate against a biasing force of the second elastic member, the acting piece press the protrusion, the open link swing against a biasing force of the first elastic member by the protrusion being pressed by the acting piece, and the protrusion becomes fitted inside the fitting hole which achieves an inertia engagement configuration in which the inertia lever is kept at the blocking position and the open link is kept at the inertia engaging position.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: March 26, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventor: Takao Taga
  • Patent number: 11939798
    Abstract: An opening and closing device for a vehicle sliding door, including: a latch; a ratchet; a power closer; a closing lever configured to rotate the latch in a closing direction from a half latched position to a fully latched position, by being rotated by motor power of the power closer; a cancel lever configured to shift between: a coupling position where rotation of the closing lever is transmitted to the latch; and a cancel position where rotation of the closing lever is not transmitted to the latch; and a first lever and a second lever configured to move the cancel lever from the coupling position to the cancel position by operation of an operating handle of a sliding door, wherein the cancel lever includes a non-flat reinforced contacting part to which the first lever and the second lever are independently configured to brought into contact.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: March 26, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Shuntaro Kimura, Naoki Hanaki
  • Patent number: 11920385
    Abstract: The present invention is a sensor assembly that is used in a door lock device provided with a latch, a ratchet, a drive unit that drives the ratchet and releases the engagement of the ratchet and the latch, and a case that accommodates the drive unit, the sensor assembly being provided with a sensor that detects the action of the ratchet when the engagement of the ratchet and the latch is released, wherein the sensor assembly is provided with: a connector that holds connection conductors electrically connected to the sensor, and is attached to the case; a sensor base that holds the sensor; a plurality of electric wires that connect the plurality of connection conductors and a plurality of terminal portions of the sensor; and a waterproofing material that comprises a photo-curing resin for covering, along with the sensor base, connecting portions of the terminal portions and the electric wires.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: March 5, 2024
    Assignee: Mitsui Kinzoku Act Corporation
    Inventors: Fuyuki Nakatsuka, Shuntaro Kimura, Nao Mizumoto
  • Patent number: 11898381
    Abstract: A waterproof structure of a door latch device, in which one end part of a cable is connected to an input lever including one end part projecting toward outside of a case, includes a cover including: a cover main body having a box shape with a cover opening, the cover main body being configured to house the one end part of the input lever and the one end part of the cable via the cover opening when the cover main body abuts on the case; and a cover supporting body extending from the cover main body. The cover is attached to the case via the cover supporting body in a state in which the cover main body is movable between a closed position at which the cover main body abuts on the case and an opened position at which the cover main body is separated from the case.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: February 13, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Yosuke Kitamura, Tatsuya Takayama
  • Patent number: 11898383
    Abstract: A hood lock device has a base plate having a striker groove, a primary latch configured to fasten a hood in a totally closed state, and a secondary latch, the secondary latch has a latch main body of steel and a handle of resin, and the latch main body has a forcing meshing portion configured to come into engagement with a striker passing across a half opening position and moving to a totally closing position and to be pressed in a latching direction opposite to an unlatching direction by the striker in a case that a hook portion configured to lock the striker recedes from the striker groove and a mounting portion provided adjacent to the forcing meshing portion and on which the handle is mounted.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: February 13, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventor: Kumiko Sato
  • Patent number: 11901661
    Abstract: A vehicle door lock device includes: a housing; electrical components including internal pins; and a terminal electrically connected to the internal and including coupling portions coupling conductive portions. Further, electric circuits of the electrical components are formed when the conductive portions are disconnected by cutting off the coupling portions, the housing includes: positioning protruding portions that protrudes at a right angle with respect to installation portions; and fitting grooves that are opened in a direction parallel to a protruding direction of the positioning protruding portions, and the terminal includes: the conductive portions; positioning holes into which the positioning protruding portions are inserted; connector pins bent at a right angle, and are fitted into the fitting grooves; and electrical component pins bent at a right angle, and are configured to be electrically connected to the electrical components when inserted into the internal pins of the electrical components.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: February 13, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Shuntaro Kimura, Takao Taga
  • Patent number: 11891842
    Abstract: An actuation transmission mechanism comprising a transmitting member that is pivotably supported to pivot in at least one driving direction from a predetermined initial position to be capable of transmitting its pivoting motion to a transmitted member that is pivotably supported in the vicinity of the transmitting member to pivot in at least one driven direction from a predetermined driven initial position, wherein the transmitting member has a formation such that when the transmitting member pivots from the initial position in the one driving direction, the transmitting member abuts against the transmitted member to make the transmitted member pivot in the one driven direction from the driven initial position to a predetermined detection position, and thereafter, though the transmitting member subsequently pivots in the one driving direction further, the transmitting member does not make the transmitted member pivot overly to a large extent in the one driven direction from the detection position.
    Type: Grant
    Filed: October 13, 2021
    Date of Patent: February 6, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Yuji Yoda, Ryo Miyanaga
  • Patent number: 11891841
    Abstract: An opening and closing device of a vehicle sliding door includes: a fully closed latch mechanism; a fully opened latch mechanism; a power releaser; a power closer; a canceler; a lock mechanism; and a relay control mechanism that includes an inner handle. The lock mechanism, the power releaser, and the canceler are disposed in the fully closed latch mechanism. The relay control mechanism includes a handle lever configured to, when a door opening operation is performed on the inner handle, rotate in a first direction to unlatch the fully closed latch mechanism and activate the cancel mechanism, and when a door closing operation is performed on the inner handle, rotate in a second direction to unlatch the fully opened latch mechanism. The inner handle is pivotally supported by the handle case of the relay control mechanism so as to be rotatable in two directions.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: February 6, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Shigenori Hiramoto, Naoki Hanaki