Patents Assigned to Iseki & Co., Ltd.
  • Patent number: 11459040
    Abstract: Provided is a work vehicle having an improved obstacle detection accuracy. The work vehicle includes: a bonnet provided on a front portion of a travelling vehicle body; an obstacle sensor that detects an obstacle on a front side; and a sensor attaching stay configured to extend toward a front side of the bonnet and to allow the obstacle sensor to be attached thereto.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: October 4, 2022
    Assignee: ISEKI & CO., LTD.
    Inventors: Hiroshi Kamoda, Itsuki Doi, Yutaka Kajino, Akihiro Machida, Seiji Tanaka, Shiro Ito
  • Patent number: 11427134
    Abstract: A working vehicle may be provided that detects obstacles around a self-traveling tractor in a wide range, with reduced erroneous detection. A tractor may include a vehicle body including a front wheel and a rear wheel; a rear wheel fender covering the front and top of the rear wheel; a rear stay in a shape that extends along the rear wheel fender, a rear first obstacle sensor provided at the front of the rear stay; and a rear second obstacle sensor provided at the rear of the rear stay.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: August 30, 2022
    Assignee: ISEKI & CO., LTD.
    Inventors: Hiroshi Kamoda, Itsuki Doi, Yutaka Kajino, Akihiro Machida, Seiji Tanaka, Shiro Ito, Hisasada Fujiie
  • Patent number: 11407304
    Abstract: A work vehicle in which hoses and the like are easy to handle and adequate routing of these hoses is possible. The work vehicle includes a traveling body which includes: traveling devices; and a connecting section which is configured to connect a working machine to the traveling body. The traveling body includes: a pair of left and right body frames which extends longitudinally; an engine which is mounted on the body frames and works as a driving source of the traveling devices and the working machine; a base plate which is provided on the body frames; a cooler which is provided on the base plate; and hoses which are connected to the cooler and routed, the base plate has a hose insertion hole into which the hoses are inserted, and the hoses pass through the hose insertion hole, extend below the base plate, and are routed toward the engine.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: August 9, 2022
    Assignee: ISEKI & CO., LTD.
    Inventors: Yoshihisa Tsuzuki, Ryota Nagano
  • Patent number: 11370298
    Abstract: A work vehicle includes front and rear wheels, a transmission case and a power transmission device. The power transmission device is housed in the transmission case and is configured to transmit driving power from an engine to driving wheels. The power transmission device has a front wheel driving shaft and a four-wheel drive clutch. The front wheel driving shaft is arranged in a lower inside portion of the transmission case and is configured to transmit the driving power to the front wheels. The four-wheel drive clutch is arranged above the front wheel driving shaft, and is configured to switch between a two-wheel drive state in which the driving power is transmitted to the rear wheels, and a four-wheel drive state in which the driving power is transmitted to both the front wheels and the rear wheels via the front wheel driving shaft.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: June 28, 2022
    Assignee: Iseki & Co., LTD.
    Inventor: Hidekazu Tsuji
  • Patent number: 11370289
    Abstract: Provided is a work vehicle in which components such as a headlamp are less likely to be affected by heat. The work vehicle includes a running vehicle body which includes running devices and to which a work machine can be replaceably connected; an engine mounted on the running vehicle body and serving as a drive source for the running devices and the work machine; a bonnet covering the engine; a headlamp attached to a front portion of the bonnet; a muffler arranged below the headlamp in an internal space of the bonnet; and a heat shield member arranged between the headlamp and the muffler.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: June 28, 2022
    Assignee: ISEKI & CO., LTD.
    Inventor: Yasuhiro Hisaoka
  • Patent number: 11156282
    Abstract: Provided is a work vehicle having a compact braking device. The work vehicle includes a drive shaft part to which power generated by a power source is transmitted and which transmits the power to drive wheels via a differential device, and a drive shaft braking mechanism which generates a braking force on the drive shaft part when a brake pedal is depressed.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: October 26, 2021
    Assignee: ISEKI & CO., LTD.
    Inventor: Yasuhiro Hisaoka
  • Publication number: 20210291638
    Abstract: A work vehicle in which hoses and the like are easy to handle and adequate routing of these hoses is possible. The work vehicle includes a traveling body which includes: traveling devices; and a connecting section which is configured to connect a working machine to the traveling body. The traveling body includes: a pair of left and right body frames which extends longitudinally; an engine which is mounted on the body frames and works as a driving source of the traveling devices and the working machine; a base plate which is provided on the body frames; a cooler which is provided on the base plate; and hoses which are connected to the cooler and routed, the base plate has a hose insertion hole into which the hoses are inserted, and the hoses pass through the hose insertion hole, extend below the base plate, and are routed toward the engine.
    Type: Application
    Filed: March 16, 2021
    Publication date: September 23, 2021
    Applicant: ISEKI & CO., LTD.
    Inventors: Yoshihisa TSUZUKI, Ryota NAGANO
  • Publication number: 20210251138
    Abstract: A work vehicle includes a running vehicle body, a floor forming a bottom portion of an operation part of the running vehicle body, a fuel tank arranged below the floor, a lawn mower suspended from a lower part of the running vehicle body, a front suspension arm for suspending a front portion of the lawn mower, and a rear suspension arm for suspending a rear portion of the lawn mower. The rear suspension arm is arranged to avoid the fuel tank.
    Type: Application
    Filed: October 21, 2020
    Publication date: August 19, 2021
    Applicant: ISEKI & CO., LTD.
    Inventors: Narutoshi ISHIOKA, Hirotaka TODA
  • Publication number: 20210197663
    Abstract: A tractor according includes a running vehicle body, a floor provided on the running vehicle body and serving as a floor surface of an operation part in which a driver is located, a floor bracket configured to support the floor, a fuel tank provided below the floor, and a pedal configured to move the running vehicle body forward or backward and having pivot shafts provided on the floor bracket between the floor and the fuel tank.
    Type: Application
    Filed: October 14, 2020
    Publication date: July 1, 2021
    Applicant: ISEKI & CO., LTD.
    Inventor: Eiji TOMIOKA
  • Publication number: 20210144915
    Abstract: A work vehicle includes a mower connected to an abdomen of a running machine body via lifting links, a lifting interlocking link mechanism provided below the machine body for moving the mower up/down, and a link stopper connected to an adjustment dial and acting on the lifting interlocking link mechanism to change a cutting height of the mower. The adjustment dial is arranged on a seat support panel that supports an operator seat, and the link stopper, connected to the adjustment dial by a wire, is arranged below the machine body. A lifting lever for raising/lowering the mower is provided on one side of the left and right sides of the machine body, and a parking lever is arranged on the seat support panel on the other side. The adjustment dial is arranged between the parking lever and fenders covering rear wheels.
    Type: Application
    Filed: October 8, 2020
    Publication date: May 20, 2021
    Applicant: ISEKI & CO., LTD.
    Inventor: Yoshihisa TSUDUKI
  • Publication number: 20210061082
    Abstract: Provided is a work vehicle in which components such as a headlamp are less likely to be affected by heat. The work vehicle includes a running vehicle body which includes running devices and to which a work machine can be replaceably connected; an engine mounted on the running vehicle body and serving as a drive source for the running devices and the work machine; a bonnet covering the engine; a headlamp attached to a front portion of the bonnet; a muffler arranged below the headlamp in an internal space of the bonnet; and a heat shield member arranged between the headlamp and the muffler.
    Type: Application
    Filed: July 30, 2020
    Publication date: March 4, 2021
    Applicant: ISEKI & Co., LTD.
    Inventor: Yasuhiro HISAOKA
  • Patent number: 10753407
    Abstract: A work vehicle includes a hydraulic main speed change clutch and a Hi-Lo clutch provided to a power transmission device for transmitting power to drive wheels, and a speed change control device configured to control vehicle speed in multi-stage manner by a combination of the main speed change clutch and the hydraulic Hi-Lo clutch. In shift-up operation for changing the speed from a low speed stage range to a high speed stage range in which a high speed clutch is used, before completion of speed change, the high speed clutch pressure is kept at a first pressure (Pa) higher than the low speed clutch pressure while the pressure of the main speed change clutch, which is a speed change source, is kept, so that the power is transmitted by a combination of the high speed clutch and the main speed change clutch, which is a speed change source.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: August 25, 2020
    Assignee: ISEKI & CO., LTD
    Inventors: Koki Ono, Tomoyuki Ishida, Yutaka Kajino, Yuji Yoshizawa, Tatsuzo Murakami
  • Patent number: 10564642
    Abstract: A work vehicle may be provided such that in autonomous traveling, contact with obstacles is avoided, and work is efficiently and safely performed. A work vehicle may include: a positioning device 174 measuring the vehicle body's own position; an obstacle recognition means recognizing an obstacle P, E, U; and a control unit having the vehicle autonomously travel on a planned travel path R1 preliminarily set; wherein the control unit includes obstacle position information D4 preliminarily stored; while traveling on the planned travel path R1, when an obstacle P, E is recognized by the obstacle recognition means, at a position stored in the obstacle position information D4, avoidance driving is performed to avoid contact with the obstacle P, E; and when the position of an obstacle U recognized by the obstacle recognition means is different from the stored obstacle position information D4, the traveling is stopped.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: February 18, 2020
    Assignee: Iseki & Co., LTD
    Inventor: Koki Ono
  • Patent number: 10407873
    Abstract: A work vehicle according to an embodiment includes: (i) a travelling vehicle body that includes a power source to a work part and a travel part; (ii) a communication unit that is able to transmit and receive signals to and from a portable communication terminal; and (iii) a control unit that is able to control the travel part on the basis of a signal transmitted from the portable communication terminal and received by the communication unit. A plurality of communication systems is provided between the communication unit and the portable communication terminal. The communication systems include a first communication system that is able to transmit a first signal from a portable communication terminal, and a second communication system that has a smaller communication area than that of the first communication system and is able to receive a second signal indicating that the portable communication terminal exists in a predetermined area.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: September 10, 2019
    Assignee: ISEKI & CO., LTD.
    Inventor: Koki Ono
  • Patent number: 10377365
    Abstract: According to one embodiment, a work vehicle includes: a traveling vehicle body; an engine supported by the traveling vehicle body; a power transmission device which transmits power of the engine to a wheel, and has a clutch member which is supported to be movable between a transmission position and a block position; a braking device which brakes the wheel; a brake control unit which allows the clutch member to move to the block position and the braking device to operate in a case where the traveling vehicle body is braked; a brake determination unit which determine whether the traveling vehicle body is braked in a case where the braking device is operated; and an engine control unit which stops the engine in a case where the traveling vehicle body is not braked on the basis of a determination result of the brake determination unit.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: August 13, 2019
    Assignee: ISEKI & CO., LTD.
    Inventor: Koki Ono
  • Patent number: 10363927
    Abstract: A speed change control apparatus for a work vehicle includes a hydraulic continuously variable speed transmission that performs speed change on power input from an engine by changing a trunnion shaft angle based on a depressing amount of a speed change pedal and outputs the power, a pedal position detector that detects a pedal position responsive to the depressing amount of the speed change pedal, and a control unit that controls a number of revolutions of the engine and the trunnion shaft angle of the hydraulic continuously variable speed transmission based on a detection value of the pedal position detector. The control unit performs control so that the trunnion shaft angle is maximized at a second pedal position set to a position shallower than a first pedal position at which the number of revolutions of the engine is maximized by a depressing operation of the speed change pedal.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: July 30, 2019
    Assignee: ISEKI & CO., LTD.
    Inventors: Koki Ono, Hiroshi Kamoda
  • Patent number: 10293682
    Abstract: A working vehicle according to an embodiment includes an exhaust pipeline and a cover. The exhaust pipeline includes an exhaust gas purification device provided to stand on one of left and right sides of a running vehicle body. The cover is provided to cover at least a peripheral surface of the exhaust gas purification device of the exhaust pipeline and has an opening in a bottom thereof. The cover has a plurality of vent holes with a diameter less than that of the opening that are formed above the opening.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: May 21, 2019
    Assignee: ISEKI & CO., LTD.
    Inventor: Ryota Nagano
  • Publication number: 20190143813
    Abstract: According to one embodiment, a work vehicle includes: a traveling vehicle body; an engine supported by the traveling vehicle body; a power transmission device which transmits power of the engine to a wheel, and has a clutch member which is supported to be movable between a transmission position and a block position; a braking device which brakes the wheel; a brake control unit which allows the clutch member to move to the block position and the braking device to operate in a case where the traveling vehicle body is braked; a brake determination unit which determine whether the traveling vehicle body is braked in a case where the braking device is operated; and an engine control unit which stops the engine in a case where the traveling vehicle body is not braked on the basis of a determination result of the brake determination unit.
    Type: Application
    Filed: November 13, 2017
    Publication date: May 16, 2019
    Applicant: ISEKI & CO., LTD.
    Inventor: Koki ONO
  • Patent number: D902263
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: November 17, 2020
    Assignee: Iseki & Co., Ltd.
    Inventors: Hiroshi Kamoda, Shiro Ito, Itsuki Doi, Akira Okimoto, Yutaka Kajino, Seiji Tanaka, Hisasada Fujiie, Akihiro Machida
  • Patent number: D902264
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: November 17, 2020
    Assignee: Iseki & Co., Ltd.
    Inventors: Hiroshi Kamoda, Shiro Ito, Itsuki Doi, Akira Okimoto, Yutaka Kajino, Seiji Tanaka, Hisasada Fujiie, Akihiro Machida