Patents Assigned to Kubota Corporation
  • Patent number: 11966249
    Abstract: A vehicle pedal structure includes an accelerator pedal swingable about a swing shaft inclined with respect to a width direction in a top view of a traveling vehicle, and a mechanical link to convert swinging of the accelerator pedal into sliding in a front-rear direction. The link includes a first link structure and a second link structure that include first and second swings and first and second rods. Each of a first end and a second end of the second rod is restricted from sliding along an entering-exiting direction. In the link structures, in the top view, a second angle of a second swing shaft with respect to the width direction is smaller than a first angle of a first swing shaft with respect to the width direction.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: April 23, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Shinsuke Ishii, Naoko Takahashi
  • Patent number: 11963474
    Abstract: A spreader device includes a container to contain spread substance, a first spreader portion having a first rotor to spray the spread substance contained in the container, a second spreader portion having a second rotor to spray the spread substance contained in the container, a first driver source to drive the first rotor, a first shaft to transmit a driving force outputted from the first driver source, a second shaft to transmit a driving force outputted from a second driver source different from the first driver source, and a selection transmitter portion to selectively transmit the driving force form the first shaft and the driving force from the second shaft to the first rotor or the second rotor.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: April 23, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Sumio Yagyu, Takao Nakagawa, Masaru Kawane, Piet Jan Van Der Marel
  • Patent number: 11965495
    Abstract: A working vehicle includes: a vehicle body provided with a traveling device; a hydraulic pump including a swashplate configured to change an output of the hydraulic pump according to a swashplate angle; a traveling motor including an output shaft having a rotation speed variable according to the output of the hydraulic pump and capable of transmitting power of the output shaft to the traveling device; an angle detector configured to detect the swashplate angle that is an angle of the swashplate; and a swashplate control unit configured to control the swashplate angle on the basis of control information relating to control of the swashplate angle and an actual swashplate angle that is the swashplate angle detected by the angle detector.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: April 23, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Tsuyoshi Gono, Naoya Nihei, Yuji Hirase, Susumu Takeoka, Keiji Takahashi
  • Patent number: 11965742
    Abstract: A work support system includes a positioning device to measure a position of a working object based on a signal of a positioning satellite, a notifier to issue notification of the working object based on whether the position of the working object measured by the positioning device is in an area, and an area changer to change a size of the area based on a number of the positioning satellite included in the signal received by the positioning device.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: April 23, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Ryosuke Kinugawa, Keisuke Miura
  • Patent number: 11964639
    Abstract: A traveling vehicle includes a mechanical brake link mechanism to transmit operation of a brake pedal to a brake device housed in a case and to control brakes of right and left rear wheels. The brake link mechanism includes a pair of brake rods extending in a front-back direction at sides of the case. A guard assembly includes a pair of guards extending in the front-back direction below the pair of brake rods. The pair of brake rods overlaps the pair of guards in a vertical direction. In a side view of the traveling vehicle, the pair of brake rods includes a higher portion positioned above a lower surface of the case to be distanced by a predetermined interval or more and positioned above the lower surface of the case, and a lower portion positioned below the higher portion. The pair of guards overlaps at least all of the lower portions in the vertical direction.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: April 23, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Takateru Nakagawa, Akira Hiwatashi, Satoshi Oizumi
  • Publication number: 20240125087
    Abstract: A working machine includes a machine body, a cabin which is provided on the machine body and in which an operator's seat where an operator sits is provided, a hood provided behind the cabin, and a condenser for an air conditioner to adjust a temperature inside the cabin, wherein the condenser is provided above the hood such that the condenser faces a lower portion of a rear surface of a rear panel of the cabin.
    Type: Application
    Filed: December 18, 2023
    Publication date: April 18, 2024
    Applicant: KUBOTA CORPORATION
    Inventor: Ryohei MASUDA
  • Publication number: 20240125095
    Abstract: A hose clamp structure includes a vertical plate having an opening, a groove portion provided at a back side of the vertical plate on one side of the opening, the groove portion being open toward the opening, a receiver portion provided at the back side of the vertical plate on the other side of the opening, a first clamping member to be inserted in the groove portion, an elastic second clamping member configured such that the second clamping member is placed in the receiver portion through the opening to contact the receiver portion and such that hose(s) passing through the opening is held between the first clamping member and the second clamping member, and a pressing member to be attached to the vertical plate to press the second clamping member from the front side to elastically deform the second clamping member to press the first clamping member.
    Type: Application
    Filed: December 12, 2023
    Publication date: April 18, 2024
    Applicant: KUBOTA CORPORATION
    Inventor: Kazuyuki HATTA
  • Patent number: 11957074
    Abstract: A work vehicle including a vehicle body, a pair of left and right driving wheels that movably support the vehicle body, a pair of motors capable of rotatably driving the left and right driving wheels respectively, a pair of maneuvering levers pivotally supported to the vehicle body to be pivotable about a horizontal axis extending in a vehicle body transverse direction and capable of adjusting rotational speeds of the left and right driving wheels respectively, and a pair of solid dynamic vibration absorbing portions supported to respective free end portions of the maneuvering levers and capable of suppressing vibrations of the maneuvering levers, wherein each solid dynamic vibration absorbing portion of the pair of solid dynamic vibration absorbing portions includes a weight within an elastic body, wherein the weight and the elastic body have equal longitudinal lengths.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: April 16, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Yuto Fujii, Justin McCallister, Hideki Aoki
  • Patent number: 11958553
    Abstract: A working vehicle includes a steering device to steer a vehicle body, a working device connected to the vehicle body, an automatic steering controller to perform automatic steering of the steering device based on a difference between a scheduled traveling line and a position of the vehicle body, and a parameter changer to change a control parameter of the automatic steering depending on the working device connected to the vehicle body.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: April 16, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Shunsuke Miyashita, Yasuaki Morioka, Kunihiko Nishino, Kumiko Kobayashi, Misako Kawai
  • Publication number: 20240116359
    Abstract: Some embodiments may include a working machine including a transportation system and one or more implements to perform one or more work tasks, the working machine further including: at least one selectively-locatable electric accessory, which comprises at least part of the transportation system or at least part of a powered implement of the one or more implements, the at least one selectively-locatable electric accessory defining a first mechanical frame connection; a frame assembly including two or more power points at two or more different locations on the frame assembly, respectively; wherein each power point defines a second mechanical frame connection to mate with the first mechanical frame connection, and wherein the at least one selectively-locatable electric accessory is operable in any of the two or more power points. Other embodiments may be disclosed and/or claimed.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 11, 2024
    Applicant: Kubota Corporation
    Inventors: Joshua M. Gattis, Gerald Johnson
  • Publication number: 20240117879
    Abstract: A working machine includes: a first fluid passage fluidly connecting a traveling operation device to an actuation valve; a first traveling fluid passage; a second traveling fluid passage; a third traveling fluid passage; a fourth traveling fluid passage; a second fluid passage fluidly connecting the first fluid passage to the first traveling fluid passage; and a third fluid passage fluidly connecting the first fluid passage to the third traveling fluid passage. Each of the first, second, third, and fourth traveling fluid passages is configured so that operation fluid to be applied to a first, second, third, and fourth pressure-receiving portions flows through the first, second, third, and fourth traveling fluid passages, respectively, when a traveling operation member is operated.
    Type: Application
    Filed: December 5, 2023
    Publication date: April 11, 2024
    Applicant: KUBOTA CORPORATION
    Inventors: Daiki ABE, Kohei KURACHI, Yudai KOGA, Yuya KONISHI, Yuya TANABE
  • Patent number: 11950536
    Abstract: A control lever of a working machine having a main operating frequency includes, a tube having a mass and a length extending from a first end to a second end. The tube defines a lumen extending from the second open end towards the first end of the tube. The control lever includes a rod having a predetermined mass and a length extending from a first end to a second end. The rod is fixed to the tube and is disposed in the lumen at a predetermined position with respect to the second end of the tube. In embodiments, the mass of the rod is determined based at least on the mass of the tube and the main operating frequency of the working machine, and the control lever has a natural frequency that is less than the main operating frequency of the working machine.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: April 9, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Tasuku Teraoka, Yuto Fujii
  • Patent number: 11950525
    Abstract: A protective member includes an attachment portion that is attached to a tractor including a mid PTO shaft and a protective frame that is supported by the attachment portion and positioned not to overlap with the mid PTO shaft in a front view to protect the mid PTO shaft, and the protective frame is positioned not to overlap with the mid PTO shaft in a side view.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: April 9, 2024
    Assignee: KUBOTA CORPORATION
    Inventor: Koji Masumoto
  • Patent number: 11951827
    Abstract: The work vehicle includes a vehicle body provided with a travel device; a prime mover provided in the vehicle body; a transmission device capable of speed-changing a driving force from the prime mover and transmitting the driving force to the travel device; a transmission case housing the transmission device and being filled with lubricating oil; and a controller capable of switching between a warm-up operation mode in which a gear of the transmission device is rotated in a state in which transmission of power from the transmission device to the travel device is blocked and a travel operation mode in which the gear is rotated in a state in which the power is transmitted from the transmission device to the travel device.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: April 9, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Tsuyoshi Gono, Naoya Nihei, Keiji Takahashi, Susumu Takeoka, Shusaku Yamaguchi, Yoichi Sugihara
  • Patent number: 11951876
    Abstract: A multipurpose work vehicle according to one or more embodiments of the present invention includes a driver's seat at the center of a vehicle body in the left-right direction of the vehicle body; and an occupant's seat to the left or right of the driver's seat in the left-right direction of the vehicle body, wherein the occupant's seat is offset rearwardly relative to the driver's seat.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: April 9, 2024
    Assignee: Kubota Corporation
    Inventors: Kensuke Okabe, Kohta Nakao, Yusuke Endo
  • Patent number: 11953035
    Abstract: A working machine includes a prime mover, a hydraulic pump driven by power of the prime mover, a cooler including a cooling fan rotated by either the power of the prime mover or hydraulic fluid delivered from the hydraulic pump, and a controller configured or programmed to perform a reduction control for reducing a target fan rotation speed that is a target rotation speed of the cooling fan in response to reduction of an actual prime mover rotation speed that is an actual rotation speed of the prime mover, and to perform, after the reduction control, a restoration control for restoring the target fan rotation speed. The controller is configured or programmed to make a difference between a reduction rate of the target fan rotation speed in the reduction control and an increase rate of the target fan rotation speed in the restoration control.
    Type: Grant
    Filed: July 12, 2023
    Date of Patent: April 9, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Daiki Abe, Ryota Hamamoto, Hiroaki Nakagawa
  • Patent number: 11951939
    Abstract: An anti-theft system for a working machine, includes: a start-operation tool to issue an order to start a prime mover; an information obtaining device to obtain first information and second information; and a controller device having: a certification storage to store certification information; a start processor to obtain the order issued by the start-operation tool and to start the prime mover when the first information obtained by the information obtaining device is related to the certification information; and a registration processor to perform a registration process for registering the second information as the certification information. The registration processor allows the registration process before starting of the prime mover, and stops allowing the registration process after the starting of the prime mover.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: April 9, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Ryo Ikeda, Keisuke Egashira, Ryota Ando
  • Patent number: D1023071
    Type: Grant
    Filed: April 4, 2023
    Date of Patent: April 16, 2024
    Assignee: Kubota Corporation
    Inventors: Yutaka Araki, Hiroyuki Sakai, Fuminori Sato
  • Patent number: D1023074
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: April 16, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Taiki Furuki, Ryo Masuda, Yuya Kusaka, Ryohei Sumiyoshi, Junichi Murakami, Takahiro Kubo
  • Patent number: D1023830
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: April 23, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Tomonori Kaneko, Wataru Sasaki