1251 patents
Page 13 of 63
Utility
Power transmission device
28 Mar 23
A power transmission device includes a first shaft provided to be rotatable around a first rotational axis of the hydraulic pump driven by the engine.
Daisuke Inaba, Ryota Kobayashi, Shunsuke Odashima
Filed: 1 Mar 22
Utility
Pipe Joint
23 Mar 23
In a pipe joint, a spigot is inserted into a socket; a lock ring is accommodated in a lock ring-accommodating groove formed in the inner circumference of the socket; and an engaging part formed in the outer circumference of the spigot, wherein the engaging part engages with the lock ring from a back side of the socket in a separation direction A of the spigot, thereby preventing the spigot from separating from the socket.
Shozo KISHI, Keita ODA, Ryunosuke TANAKA
Filed: 5 Oct 20
Utility
Joint and Work Vehicle
23 Mar 23
A joint includes: a first coupling section configured to be coupled to an end of a first pipe; and a second coupling section configured to be coupled to an end of a second pipe.
Yusuke Endo, Yumi Kushimoto, Yuki Monde
Filed: 3 Jun 22
Utility
Hydraulic System for Working Machine
23 Mar 23
In a hydraulic system for a working machine, a controller is configured or programmed to increase an output-port pressure of one activation valve for one hydraulic device and an output-port pressure of another activation valve for another hydraulic device to a normal pressure higher than a preloading pressure from a state where the output-port pressure of the one activation valve is equal to the preloading pressure and the output-port pressure of the other activation valve is lower than the preloading pressure, by causing the output-port pressure of the one activation valve to be lower than the preloading pressure and increasing the output-port pressure of the other activation valve to the normal pressure.
Yuji FUKUDA, Ryota HAMAMOTO, Jun TOMITA, Yuya KONISHI
Filed: 15 Jun 22
Utility
ROPS Frame for Work Vehicle, and Work Vehicle
23 Mar 23
A ROPS frame for a work vehicle includes: a first pipe having an end; a second pipe having an end facing the end of the first pipe; a plate-shaped first joint coupled to the end of the first pipe and oriented orthogonally to a longitudinal direction of the pipes; a plate-shaped second joint coupled to the end of the second pipe and oriented orthogonally to the longitudinal direction of the pipes, the second joint being placed on the first joint; and a bolt extending through the first and second joints and fastening the first and second joints to each other.
Kohta Nakao, Yuki Monde
Filed: 13 Jun 22
Utility
Power Supply Device for Electric Work Vehicle
23 Mar 23
A power supply device for an electric work vehicle, including: a battery by which an electric work vehicle is drivable; a first connection unit for an internal inverter configured to convert DC power from the battery into AC power, and output the AC power to an internal electric device installed in the electric work vehicle; a second connection unit for an external inverter configured to convert DC power from the battery into AC power, and output the AC power to an external electric device; and a battery control unit connected to the first connection unit and the second connection unit, and configured to control charging of, and power supply from, the battery, wherein the battery control unit is configured to communicate with the external inverter side via the second connection unit to perform authentication regarding whether or not power supply to the external inverter is permitted.
Takumi Yamamoto, Tomohiko Hisakuni, Masahiro Yamada, Hirokazu Ito
Filed: 15 Jun 22
Utility
Work Vehicle
23 Mar 23
A work vehicle capable of traveling on a public road and in a working field includes: a public road traveling determination unit configured to generate vehicle body position information regarding a position at which the vehicle body is located, determine based on the vehicle body position information whether or not the vehicle body is traveling on the public road, and output a determination result; and a vehicle speed limiter configured to limit a vehicle speed in accordance with the determination result.
Tomohiko Hisakuni, Masahiro Yamada, Hirokazu Ito
Filed: 15 Jun 22
Utility
Hybrid power transmission mechanism
21 Mar 23
A hybrid power transmission mechanism includes an engine; a motor/generator having a rotor and a stator; a driven machine; a planetary gear mechanism having a sun gear, an internal gear drivingly connected to the rotor, a planetary gear, and a planetary carrier shaft including first and second extension shaft parts extending from the planetary gear in opposite directions; a first clutch switchable between a state of allowing transmission of power between the first shaft and the internal gear and a state of not allowing transmission of power therebetween; and a second clutch switchable between a state of allowing rotation of the sun gear and a state of not allowing rotation thereof.
Sumio Yagyu
Filed: 7 Jun 22
Utility
Hydraulic system for working machine
21 Mar 23
A hydraulic system for a working machine includes hydraulic actuators actuated with hydraulic fluid delivered from a hydraulic pump, and control valves each of which is shiftable among shift positions to control a flowrate of hydraulic fluid flowing to the corresponding hydraulic actuator.
Yuji Fukuda
Filed: 28 Sep 21
Utility
Tractor
21 Mar 23
In a tractor, a radiator is arranged on one front-rear side relative to an engine.
Hiroki Nagai, Sachiko Tsujimori, Tomohisa Yamamoto, Taisuke Hashimoto, Kunihiro Yoneguchi
Filed: 14 Oct 20
Utility
Agricultural Robot
16 Mar 23
An agricultural robot includes a traveling body, a working unit on the traveling body to do work relating to a crop, an optical sensor on the traveling body, and a crop estimator to perform estimation of the crop based on sensor data obtained by the optical sensor.
Shunsuke EDO, Takuya TAMAI, Jumpei MIYAMOTO, Tomoyoshi SAKANO
Filed: 21 Nov 22
Utility
Working Machine
9 Mar 23
A working machine includes a machine body, an operator's seat mounted on the machine body, an exterior cover positioned on a side of the operator's seat, and a handrail positioned with the exterior cover on the same side of the operator's seat and attached to the machine body.
Daisuke YOSHIDA, Yoshinori TORII, Daisuke DOMEN
Filed: 14 Nov 22
Utility
Hydraulic System for Working Machine
9 Mar 23
A hydraulic system for a working machine includes a hydraulic pump to output a hydraulic fluid, an operation device operable to supply a pilot fluid in accordance with an amount by which the operation device is operated, a hydraulic actuator to be operated by the hydraulic fluid, a pilot fluid passage connected to the operation device, a first control valve connected to the pilot fluid passage and to be operated by the pilot fluid to control a flow of the hydraulic fluid, a second control valve to be operated by the pilot fluid to control a flow of the hydraulic fluid, a proportional valve to change a pressure of the pilot fluid to operate the second control valve, a pressure detector provided in the pilot fluid passage to detect a pressure in the pilot fluid passage, and a controller to control the proportional valve based on the pressure.
Kohei NAGAO, Yuji FUKUDA
Filed: 10 Jun 22
Utility
Work Vehicle
9 Mar 23
A diff-lock operation shaft 50 is supported by a case 11 in such a manner as to be rotatable around an axis P1 of the diff-lock operation shaft 50 and operates a diff-lock section 48 to a lock position A2 by being rotated, and a first coil spring 51 is wound around the outer surface of the diff-lock operation shaft 50 concentrically with the diff-lock operation shaft 50, and is linked at one end portion 51b to the diff-lock operation shaft 50 and at another end portion 51a to linking members 55 and 56.
Toshifumi Yasuda, Akihiro Takami
Filed: 16 May 22
Design
Tractor
7 Mar 23
Chihiro Kimura
Filed: 22 Dec 21
Design
Front cover portion of operation tower of work vehicle
7 Mar 23
Wataru Sasaki, Yasuhiro Fujii
Filed: 26 Apr 21
Design
Engine hood for working machine
7 Mar 23
Chihiro Kimura
Filed: 22 Dec 21
Utility
Work vehicle
7 Mar 23
In a work vehicle, a pivot axis of an operating lever and a rotary axis of a potentiometer are located on a same axis.
Masahiro Yamada, Hirokazu Ito, Tomohiko Hisakuni
Filed: 20 Oct 20
Utility
Routing-member Guide Structure and Working Machine
2 Mar 23
A routing-member guide structure includes a movable member pivotably supported by a fixed-side member; a first routing member routed on or along the movable member; and a guide member to guide the first routing member.
Akihiro ICHIHARA, Kenzo KUSAMA, Junichi FUJIWARA
Filed: 9 Nov 22
Utility
Work Vehicle
2 Mar 23
A work vehicle includes: a body; a travel device supporting the body; a travel driver configured to drive the travel device; a brake configured to lock and unlock the travel device; a deactivation operation tool manually movable to a first position, at which the brake is operable to be activated and deactivated, and a second position, at which the brake is kept deactivated; a position detector configured to detect that the deactivation operation tool is at the second position; and a notifier configured to provide, based on a result of the detection by the position detector, a notification that the deactivation operation tool is at the second position.
Yasuhiro Manji, Masahiro Yamada, Hirokazu Ito
Filed: 14 Jun 22