1251 patents
Page 11 of 63
Utility
Gas valve and flow rate control method for propane gas
27 Jun 23
A ring base member of a disc seat ring is fixed to a valve disc using a bolt.
Yasutarou Yoshida, Masataka Taniguchi, Kouhei Mori
Filed: 19 Feb 21
Utility
Fuel tank of work vehicle and work vehicle
30 May 23
Provided is a fuel tank of a work vehicle in which fuel can be easily sucked into an engine.
Takaya Hayashi
Filed: 4 Mar 20
Utility
Multipurpose vehicle
30 May 23
A multipurpose vehicle includes a stepless speed changer which is provided at one of lateral sides of a vehicle body with respect to an engine and a traveling transmission, an engine output shaft projected from the engine toward the stepless speed changer along a lateral direction of the vehicle body, a speed changer input shaft projected from the stepless speed changer toward the engine along the lateral direction of the vehicle body, and a first gear transmission mechanism provided between and across the engine output shaft and the speed changer input shaft and transmitting power of the engine output shaft to the speed changer input shaft.
Toshifumi Yasuda, Takashi Kuramoto, Kensuke Okabe, Hiroshi Takagi
Filed: 16 Nov 20
Utility
Tractor
25 May 23
A tractor includes: a vehicle body; an engine bonnet forming an engine compartment; an engine; a first exhaust-gas cleaning device that purifies an exhaust gas and is above the engine such that its long side is substantially parallel to a vehicle-body lateral width direction; a second exhaust-gas cleaning device that purifies the exhaust gas and is behind the engine such that its long side is substantially parallel to the lateral width direction; a vehicle body frame; and a supporting tool that is supported by the vehicle body frame, supports the first and second exhaust-gas cleaning devices, and includes a support column that extends upward from the vehicle body frame along a front portion of the second exhaust-gas cleaning device, and a support arm that extends forward from an upper portion of the support column along a lower portion of the first exhaust-gas cleaning device.
Satoshi Nagata, Ryuichi Inoue
Filed: 28 Oct 22
Utility
Tractor
25 May 23
A tractor includes: a vehicle body; an engine bonnet that forms an engine compartment; a first exhaust-gas cleaning device disposed above the engine in the engine compartment and purifies exhaust gas from the engine; and a second exhaust-gas cleaning device disposed behind the engine and purifies the exhaust gas from the engine, the engine compartment including: a back engine compartment portion in which the second exhaust-gas cleaning device is disposed, and a front engine compartment portion disposed further toward a vehicle-body front side than the back engine compartment portion, the engine bonnet including: a back bonnet that covers the back engine compartment portion, and a front bonnet that is configured as a separate body from the back bonnet and covers the front engine compartment portion, and the front bonnet being swingably supported to open and close.
Satoshi Nagata, Ryuichi Inoue
Filed: 28 Oct 22
Utility
Hydraulic System for Working Machine
25 May 23
A hydraulic system for a working machine includes hydraulic actuators actuated with hydraulic fluid delivered from a hydraulic pump, control valves each of which is shiftable among shift positions to control a flowrate of hydraulic fluid flowing to the corresponding hydraulic actuator, a detection fluid passage, an interlocking control valve, and a pressure detection unit.
Yuji FUKUDA
Filed: 20 Jan 23
Utility
Work machine and control method for work machine
23 May 23
A work machine includes a first oil passage connecting a first hydraulic pump and a first chamber of a bucket cylinder, a fourth oil passage connecting an arm control valve and a fourth chamber of an arm cylinder, a bypass oil passage connecting the fourth oil passage and the first oil passage, and a switching mechanism configured to control connection/disconnection of the fourth oil passage to/from the first oil passage via the bypass oil passage.
Daiki Abe, Ryota Hamamoto, Jun Tomita
Filed: 30 Nov 22
Utility
Work Vehicle and Controller for Work Vehicle
18 May 23
A work vehicle includes a vehicle body, running gear to cause the vehicle body to travel, a height adjuster to change a height of a center of gravity of the vehicle body, and a controller configured or programmed to, in accordance with at least one of a turning radius and an angular velocity of the vehicle body during a turn, control the height adjuster to maintain or lower the height of the center of gravity.
Shinya YAMADA
Filed: 15 Nov 22
Utility
Method of Producing a Titanium-niobium Composite Oxide
18 May 23
A production method of a titanium-niobium composite oxide uses, as a source material, niobium oxide including a mixture of a plurality of crystal forms including a first Nb2O5 structure and at least either of a second Nb2O5 structure and a third Nb2O5 structure.
Kenji HIGASHI
Filed: 12 May 21
Utility
Wheel center cap assembly
16 May 23
A wheel center cap ASSY (assembly) for a work vehicle includes a center cap attached to a hub of a wheel coupled to an axle and having a center axis, an adaptor including a cap attachment portion to which the center cap is attached and a plurality of flange portions disposed on the outer side of and along a circumferential direction of the center cap, and a coupling member for coupling the flange portions to the hub.
Min Sung Kim, Akira Minoura, Kendall Peterman
Filed: 7 Aug 19
Utility
Positioning detection device and working machine having positioning detection device
16 May 23
A positioning detection device includes a first obtaining circuit to obtain a satellite signal, a second obtaining circuit to obtain a detection signal of an inertial device, a third obtaining circuit to obtain a traveling state of the vehicle body including straight-traveling and turning of the vehicle body, a first calculator to calculate first positioning information in a satellite navigation system to which the satellite signal is applied, a second calculator to calculate second positioning information in an inertial navigation system to which the detection signal is applied, a third calculator to calculate third positioning information in a hybrid navigation system to which the first positioning information and the second positioning information are applied, and an output circuit to output the third positioning information upon obtaining the straight-traveling and to output the first positioning information and/or the second positioning information upon obtaining the turning.
Kenichi Iwami, Akisato Hori, Akira Chabata, Naohiro Ishikawa
Filed: 30 Nov 20
Utility
Watertightness Testing Device and Watertightness Testing Method
11 May 23
A watertightness testing device (1) for performing a watertightness test of a joined section between joined pipes (2 and 3), the watertightness testing device (1) including a testing device body (21) and a moving operation rod (22) for moving the testing device body (21) in the pipes in a pipe axial direction (B) from outside an end section of the pipes, wherein the moving operation rod (22) is provided in the testing device body (21) and extends along the pipe axial direction (B), main supporting members (61 and 62) for supporting the moving operation rod (22) are provided on the moving operation rod (22) outside the pipe (2), and the main supporting members (61 and 62) have a rotatable main rolling member (75) in a lower end section, the main supporting members (61 and 62) are switchable between a supporting posture (K) in which the main supporting members (61 and 62) support the moving operation rod (22) outside of the pipes and a folded posture in which the main supporting members (61 and 62) are folded inside the pipes, and the main supporting members (61 and 62) are urged from the folded posture toward the supporting posture (K).
Yuito KOMARU, Masataka SHIMOMURA, Daichi HIGASA, Kohei IKEDA
Filed: 15 Mar 21
Design
Gland for pipe joints
9 May 23
Ryunosuke Tanaka, Keita Oda
Filed: 30 Apr 21
Utility
Method for treating organic wastewater, and device for treating organic wastewater
9 May 23
An organic wastewater treatment device includes a biological treatment tank having a plurality of biological treatment units connected in series, where each biological treatment unit includes a pair of an anoxic tank disposed on an upstream side and an aerobic tank disposed on a downstream side along a flow of the organic wastewater, where a membrane separation device is immersed in activated sludge in the aerobic tank, a sludge return path from the aerobic tank on the most downstream side to the anoxic tank on the most upstream side, and an anaerobic tank for anaerobically treating the organic wastewater, which is then divided and supplied to the anoxic tank of each biological treatment unit.
Soichiro Yatsugi, Shinya Nagae, Hitoshi Yanase, Yuko Tsuzuki
Filed: 26 Feb 21
Utility
Front guard and working machine
9 May 23
A working machine includes a machine body an operator seat mounted on the machine body, a front working device swingable upward and downward, the front working device being provided forward of the operator seat and on one side in a machine-width direction eccentric with respect to a central portion of the operator seat, and a front guard provided forward of the operator seat.
Kazuyuki Hatta, Taiki Fujimoto, Akira Komukai, Yoshinori Torii
Filed: 14 Sep 21
Utility
Hydraulic system of work machine and work machine
9 May 23
A hydraulic system of a work machine includes a first hydraulic device to operate in a first operation mode while pressure of hydraulic oil supplied from a hydraulic pump via a first oil passage is equal to or higher than a first pressure threshold.
Yuji Fukuda, Kazuyoshi Arii, Ryohei Sumiyoshi
Filed: 17 Dec 20
Utility
Watertightness Testing Method and Assembling Device
4 May 23
A watertightness testing method for testing watertightness of a joined section (4) where one end section of a second pipe (3) is joined to a first pipe (2), the watertightness testing method including: inserting a testing device body (21) into the first pipe (2); attaching an assembling device (80) to another end section of the second pipe (3); attaching a pulling device (82a) to the assembling device (80) and connecting the pulling device (82a) to a strap-shaped member (112a) having been wound in advance around an outer circumference of the first pipe (2); operating the pulling device (82a) and pulling the strap-shaped member (112a) in a separating direction of the second pipe (3) to have a reaction force generated in the second pipe (3) cause the second pipe (3) to be pulled in a joining direction (G), the one end section of the second pipe (3) to be inserted into the first pipe (2), and the second pipe (3) to be joined to the first pipe (2); and operating a moving operation rod (22) provided in the testing device body (21) from outside of the other end section of the second pipe (3) in a state where the second pipe (3) is being pulled in the joining direction (G) to move the testing device body (21) to the joined section (4).
Yuito KOMARU, Shozo KISHI, Masataka SHIMOMURA, Daichi HIGASA, Kohei IKEDA
Filed: 15 Mar 21
Utility
Tractor
27 Apr 23
A tractor includes: a vehicle body; an engine bonnet that forms an engine compartment; an engine disposed in the engine compartment; a first exhaust-gas cleaning device that is disposed in the engine compartment and purifies exhaust gas discharged by the engine; and a second exhaust-gas cleaning device that is disposed in the engine compartment and purifies the exhaust gas, the first exhaust-gas cleaning device being disposed above the engine such that a long side of the first exhaust-gas cleaning device is substantially parallel to a vehicle-body lateral width direction, the second exhaust-gas cleaning device being disposed behind the engine such that a long side of the second exhaust-gas cleaning device is substantially parallel to the vehicle-body lateral width orientation, and a maximum vertical length of the first exhaust-gas cleaning device is shorter than a maximum longitudinal length of the first exhaust-gas cleaning device.
Yoshiyuki Tamaki, Kyota Inoue, Ryuichi Inoue, Masaru Shinya, Satoshi Nagata
Filed: 28 Oct 22
Utility
Work Tool Mounting Mechanism
27 Apr 23
A working tool mounting mechanism for a tractor, includes: an extensible cylinder that is disposed on a tip of a boom of a front loader of the tractor, and comprises a cylinder body and a rod slidable with respect to the cylinder body; engaging parts that are respectively disposed on the cylinder body and the rod, and are each movable between an engagement position and a release position with extension and contraction of the extensible cylinder, the engaging parts each engaging with a working tool detachably attached to the boom at the engagement position, and not engaging with the working tool at the release position; a cover that covers the extensible cylinder from one direction; and a frame that is fixed to the cover and restricts at least one of: movement of the cylinder body and the rod in an extensible direction exceeding a predetermined position with the extension and contraction of the extensible cylinder, and rotation of the extensible cylinder around an axial direction.
Shin Torii, Koshiro Hirakawa
Filed: 28 Oct 22
Utility
Working machine
25 Apr 23
A working machine includes a machine body having a front-rear direction and a right-left direction perpendicular to the front-rear direction and having a rear part in the front-rear direction, a right side, and a left side opposite to the right side in the right-left direction.
Keigo Honda, Hiroaki Nakagawa, Daisuke Sakurai, Hiroshi Fujiwara
Filed: 2 Feb 22