1251 patents
Page 2 of 63
Utility
Work Machine
28 Dec 23
A work machine includes an engine, a hydraulic pump, a work apparatus driver to receive a pressurized fluid, a hydraulic circuit connecting the hydraulic pump with the work apparatus driver, a control valve in the hydraulic circuit, a relief valve connected to a first portion upstream of the control valve, a drain path connected to a second portion upstream of the first portion, an on-off valve to open and close the drain path, and a controller to control the on-off valve based on a state of the engine.
Naoya OKAMOTO
Filed: 26 May 23
Utility
Swiveling Work Machine and Method for Detecting Orientation of Swiveling Work Machine
28 Dec 23
A swiveling work machine includes: a swivel base rotatable about a swivel axis extending in an up-down direction; a working device provided on the swivel base; a position detector provided on the swivel base to detect a position; and a calculator to calculate an orientation of the swivel base based on a detected position which is the position detected by the position detector, in which the calculator is configured or programmed to calculate an axis position which is a position of the swivel axis based on a plurality of the detected positions obtained during rotation of the swivel base about the swivel axis, and calculate the orientation of the swivel base, based on the axis position and the detected position.
Junichi YUASA
Filed: 12 Jun 23
Utility
Work Vehicle
28 Dec 23
A work vehicle includes: a body 1; a plurality of travel wheels 2 at front and back portions of the body 1 on each of left and right sides; a plurality of holder mechanisms A held by the body 1 and holding the respective travel wheels 2 in such a manner as to be capable of moving the travel wheels 2 independently of one another relative to the body 1; and a plurality of crawler travel devices E attachable to and detachable from the respective holder mechanisms A.
Minoru Hiraoka, Tomoyoshi Sakano, Junichi Ishikawa
Filed: 1 Dec 21
Utility
Work Vehicle
28 Dec 23
A work vehicle including: a transmission configured to receive motive power input from a motive power source, and shift and output the input motive power to a travel device; a transmission case housing the transmission; and a gear pair disposed in the transmission, in a bottom section of an internal space of the transmission case, and including (i) a first power transmission gear configured to rotate about a first rotation axis, and (ii) a second power transmission gear configured to mesh with the first power transmission gear and rotate about a second rotation axis that is parallel with the first rotation axis.
Tomonari TSUCHIDA, Tomoyuki TANAKA, Takahiro MATSUO, Hiroyuki AIKAWA, Kazuhiro WADA
Filed: 21 Apr 23
Utility
Support System for Working Vehicle
21 Dec 23
A support system for a working vehicle includes a working vehicle including a vehicle body to travel selectively under manual steering or automatic steering, a controller, and a communicator, the controller is configured or programmed to define a planned travel line for and control the automatic steering based on a reference line, the communicator receiving a replacement line for replacing the reference line, and a server to transmit the replacement line to the communicator.
Yuki KUBOTA, Yoshiaki HIRUTA, Tsuyoshi GONO, Ryosuke KINUGAWA
Filed: 23 May 23
Utility
Work Vehicle
21 Dec 23
Atsushi JINNAI, Ryoma IWASE, Yusuke NABANA, Rikuto ARAKI, Makoto KUBOTA
Filed: 25 May 23
Design
Riding-type mower
19 Dec 23
Ryo Masuda, Wataru Sasaki, Yuya Kusaka
Filed: 31 May 22
Utility
Working machine
19 Dec 23
A working machine includes a controller configured to determine a first deceleration threshold corresponding to each of a first traveling pressure, a second traveling pressure, a third traveling pressure, and a fourth traveling pressure, to perform automatic deceleration to reduce rotation speeds of a left traveling motor and a right traveling motor, and to judge whether to perform the automatic deceleration based on the determined first deceleration threshold, the first traveling pressure, the second traveling pressure, the third traveling pressure, and the fourth traveling pressure.
Yuji Fukuda, Kohei Nagao, Ryota Hamamoto, Hiroaki Nakagawa, Jun Tomita
Filed: 29 Jul 21
Utility
Hydraulic system for working machine
19 Dec 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
Complex titanate compound, method of preparing same, and friction material
19 Dec 23
This composite titanium oxide compound is a composite titanium oxide compound wherein primary particles of an alkali metal titanate compound and primary particles of an alkaline earth metal titanate compound are joined to form secondary particles.
Kenji Higashi, Masafumi Yasuda
Filed: 27 Nov 18
Utility
Transmission Unit and Power System
14 Dec 23
A clutch unit (20) includes a coupling element (23) configured to, in a power transmission enabled manner, couple an output shaft (13) of an engine (10) and an input shaft (16) of a hydraulic pump (15) driven by driving force of the engine (10), and a motor generator (18) configured to generate driving force separately from the engine (10), in which the coupling element (23) includes a driving-side coupling portion (23a) configured to be coupled to a first coupling portion (11a) that is provided in the output shaft (13), and a driven-side coupling portion (23b) configured to be coupled to a second coupling portion (15a) that is provided in the input shaft (16) and that is configured to be coupled to the first coupling portion (11a).
Jirou ARAKAWA, Koichi FUNAKI
Filed: 3 Dec 21
Utility
Pipe Joint, Gland, and Method for Joining Pipes
14 Dec 23
A pipe joint is provided in which a seal member insertion space 14 is formed between a first tapered surface 8 of a socket 5 and an outer circumference of a spigot 3, a seal member 15 is inserted into the seal member insertion space 14, and a gland 17 that presses the seal member 15 into the seal member insertion space 14 is externally fitted to the spigot 3.
Ryunosuke TANAKA, Keita ODA, Shozo KISHI
Filed: 29 Oct 21
Utility
Transmission Unit and Power System
14 Dec 23
A clutch unit (20) includes a coupling element (23) configured to, in a power transmission enabled manner, couple an output shaft (13) of an engine (10) and an input shaft (16) of a hydraulic pump (15) driven by driving force of the engine (10), and a motor generator (18) configured to generate driving force separately from the engine (10), in which the motor generator (18) is disposed to avoid the coupling element (23) as viewed from an axial direction of the output shaft (13).
Jirou ARAKAWA, Koichi FUNAKI
Filed: 3 Dec 21
Design
Rear frame for a riding-type mower
12 Dec 23
Ryo Masuda, Yuya Kusaka
Filed: 31 May 22
Design
Front step for a riding-type mower
12 Dec 23
Ryo Masuda
Filed: 31 May 22
Utility
Working machine coupler device and working machine coupling method
12 Dec 23
A working machine coupler device includes a top linkage, a lower linkage, a detachable frame including a second upper coupler to be coupled to a first upper coupler, and a second lower coupler to be coupled to a first lower coupler, and a top linkage controller.
Kenichi Aoyama
Filed: 23 Dec 20
Utility
Work vehicle
12 Dec 23
A work vehicle includes a hood swingable in an up-down direction between an open position, in which the hood is positioned expose an engine room, and a closed position, in which the hood is positioned to close the engine room, and at least one damper to urge the hood toward a side of the open position.
Yasuo Yamamoto, Tadashi Nakamura
Filed: 6 Dec 21
Utility
Hydraulic system for working machine
12 Dec 23
A hydraulic system for a working vehicle includes a first hydraulic pump to deliver pilot fluid to a control valve for a hydraulic actuator whose highest load pressure acts on a first fluid passage, and a second hydraulic pump to deliver hydraulic fluid whose pressure acts on a second fluid passage.
Yuji Fukuda, Kazuyoshi Arii, Toshihiko Takemura
Filed: 16 Jun 22
Utility
Management System
7 Dec 23
A management system includes a working vehicle and a server.
Katsuhiko WATANABE, Tsuyoshi GONO, Atsushi MIMA, Ryuzo FUJITA, Ryosuke KINUGAWA
Filed: 26 May 23
Utility
Work Vehicle
7 Dec 23
A work vehicle includes: a front wheel; a rear travel device; a travel body supported by the front wheel and the rear travel device; a driving section provided in the travel body and having an occupant floor section; a travel power transmission device configured to transmit power to the rear travel device; at least one electric motor coupled to the travel power transmission device; a first inverter connected to the at least one electric motor; and a second inverter connected to the at least one electric motor.
Yuji HIRASE, Sumio YAGYU, Kazuto OKAZAKI, Tsunehiro II
Filed: 31 Mar 23