686 patents
Page 16 of 35
Utility
Working Vehicle
31 Mar 22
A working vehicle includes a prime mover provided on a vehicle body, a first indicator light provided on the vehicle body, a second indicator light provided on a working device connected to the vehicle body, and an integrated controller including a first controller portion to control the prime mover, and a second controller portion to control the first indicator light and the second indicator light.
Yuya YAMAMOTO
Filed: 9 Dec 21
Utility
Working Machine
24 Mar 22
A working machine includes: a support bracket provided on a machine body and including a boom pivotal support portion and a cylinder pivotal support portion; a boom pivotally supported by the boom pivotal support portion; a boom cylinder pivotally supported at the cylinder pivotal support portion and the boom, and causing the boom to swing upward and downward; a hydraulic hose extended through the support bracket from the rear of the support bracket to the front of the support bracket and connected to the boom cylinder; a first clamp to retain the hydraulic hose on the support bracket; and a second clamp to retain the hydraulic hose on the boom cylinder.
Kazuaki SHOBU, Hiroshi HORII, Hitoshi IWAMURA, Shoichi KAWANO, Shohei DOI
Filed: 30 Nov 21
Utility
Vehicle Speed Control System
24 Mar 22
A vehicle speed control system that controls a vehicle speed of an agricultural vehicle that performs work using a work device while traveling using a traveling device, the agricultural vehicle performs work travel a plurality of times with non-work travel interposed therebetween, the vehicle speed control system including: a control unit configured to perform work travel control in which a vehicle speed is set according to a load on a motive power source that drives the traveling device and the work device; and a storage unit in which a vehicle speed that is set during the work travel is stored as an optimum vehicle speed, the control unit performs initial work travel control in which a vehicle speed at a time when the work travel is started after the non-work travel is set using the optimum vehicle speed that is stored during the work travel performed before the non-work travel.
Takashi Nakabayashi, Tomohiko Sano, Osamu Yoshida, Shotaro Kawahata, Masayuki Horiuchi
Filed: 23 Dec 19
Utility
Hydraulic System for Working Machine
24 Mar 22
A hydraulic system includes a hydraulic pump, a first hydraulic actuator, a second hydraulic actuator, a first control valve to control the first hydraulic actuator, a second control valve to control the second hydraulic actuator, a pressure increasing portion to increasing a pressure of the operation fluid, a first discharge fluid tube connected to any one of the first control valve and the second control valve and connected to the pressure increasing portion, a second discharge fluid tube connected to the first discharge fluid tube and configured to discharge the operation fluid, a float switching valve having an allowance position, a prevention position, and a float position, the allowance position blocking the second discharge fluid tube and allowing the operation fluid to flow to the pressure increasing portion, the prevention position unblocking the second discharge fluid tube and preventing the operation fluid from flowing to the pressure increasing portion.
Yuji FUKUDA, Keigo HONDA
Filed: 1 Dec 21
Utility
Working Machine
24 Mar 22
A working machine includes a machine body, an engine on the machine body, a motor/generator to perform an assisting action in which the motor/generator functions as a motor to assist the engine in driving and an electricity generating action in which the motor/generator functions as a generator to generate electricity using power from the engine, a battery to store electricity generated by the motor/generator, an operation actuator to perform an operation of the machine body, a starting action determiner to determine, upon operation of the operation actuator, whether the operation corresponds to a starting action for the machine body, a first setter to set, if the starting action determiner determines that the operation of the operation actuator corresponds to the starting action, a torque of the motor/generator for the assisting action or the electricity generating action to a first torque, and a second setter to set, if the starting action determiner determines that the operation of the operation actuator does not correspond to the starting action, the torque for the assisting action or the electricity generating action to a second torque differing from the first torque set by the first setter.
Daiki TAMBA, Yukifumi YAMANAKA
Filed: 6 Dec 21
Utility
Working Machine
24 Mar 22
A working machine includes a machine body, an engine on the machine body, a motor/generator to perform an assisting action in which the motor/generator functions as a motor to assist the engine in driving and an electricity generating action in which the motor/generator functions as a generator to generate electricity using power from the engine, a working device to function using power from the engine and the motor/generator, a work operation actuator for operation of the working device, an action controller to cause the assisting action to be performed when a rotation speed of the engine is equal to or less than a first rotation speed and cause the electricity generating action to be performed when the rotation speed of the engine is equal to or greater than a second rotation speed greater than the first rotation speed, and a speed controller to change the first rotation speed or the second rotation speed according to an operation amount of the work operation actuator.
Daiki TAMBA, Yukifumi YAMANAKA
Filed: 7 Dec 21
Utility
Coupling Device
17 Mar 22
A coupling device includes: a first connector that connects to a work vehicle; a second connector that connects to a work device; an actuator that changes a connecting position of at least one of the first connector and the second connector; and a control device that controls the actuator.
Kohei Okura, Shinnosuke Ishikawa, Noriyuki Koshida
Filed: 1 Sep 21
Utility
Work Machine
17 Mar 22
A work machine includes: a work vehicle; a work device coupled to the work vehicle; a control device that executes at least one of: a first control to control the work device based on a first command from the work vehicle; and a second control to control the work vehicle based on a second command from the work device; and a switching device that switches the control device between the first control and the second control.
Kohei Okura, Shinnosuke Ishikawa, Noriyuki Koshida
Filed: 3 Sep 21
Utility
Agriculture Assistance System
17 Mar 22
An agriculture assistance system includes a data setting unit configured or programmed to associate agricultural data at a predetermined position in an agricultural field to a plurality of areas set in the agricultural field, and to set the associated agricultural data as data corresponding to the respective areas, an area setting unit configured or programmed to set the areas in the agricultural field, and a map display unit configured or programmed to display the data corresponding to the respective areas.
Shuji TAKEDA, Yoshiharu YOSHIMOTO, Masayuki YAO, Tomohiro NISHIKAWA, Kazuya HIRAZAWA
Filed: 22 Nov 21
Utility
Electric Work Vehicle
17 Mar 22
An electric work vehicle includes: a carrier 32 in which a battery can be stored and a support portion 40 is provided; a carrier storage portion provided in a vehicle body and capable of holding the carrier 32; a guide portion 21, 22 that is capable of supporting, via the support portion 40, the carrier 32 operated so as to be lifted from the ground, in a state in which the carrier is lifted from the ground, and guiding the carrier 32 toward the carrier storage portion; and a positioning portion 42 configured to, when the carrier 32 placed on the ground is operated so as to be lifted and the support portion 40 has reached a position at which the support portion 40 can be supported by the guide portion 21, 22, stop the operation of lifting the carrier 32.
Masahiro Yamada, Hirokazu Ito, Makoto Odagiri
Filed: 4 Jun 21
Utility
Working Machine
17 Mar 22
In a working machine, a stroke of an arm cylinder caused when a distance of a tip portion of an arm from a machine body is equal to a predetermined limit distance is defined as a stroke Y1, a stroke of a boom cylinder caused when the stroke of the arm cylinder is equal to the stroke Y1 and a height of the tip portion of the arm is equal to a height of a boom pivot shaft is defined as a stroke X1, and when the stroke of the boom cylinder is between X1 and a stroke end thereof in a direction to swing the boom upward, the controller restricts the stroke of the arm cylinder to swing the arm in a dumping direction to prevent the arm from swinging further in the dumping direction from a position where the stroke of the arm cylinder is equal to Y1.
Hiroshi Horii
Filed: 26 Nov 21
Utility
Work Vehicle
24 Feb 22
A link mechanism is provided between a first member and a second member to effect a bending/stretching motion in operative association with a telescopic expanding/contracting motion of the first member and the second member.
Manabu TOGO, Jinto NO
Filed: 19 Aug 21
Utility
Movement Assisting Tool
24 Feb 22
A movement assisting tool (23) includes an attachment portion (24) that can be attached to and removed from a main body portion (11) of a battery unit (4), leg portions (25) that are coupled to the attachment portion (24) and extend from the attachment portion (24), and moving wheels (26) that are supported by extension portions of the leg portions (25).
Kazutomo Miyaguchi, Hirokazu Ito
Filed: 4 Jun 21
Utility
Working Machine
17 Feb 22
A working machine includes a controller configured or programmed to perform an automatic deceleration for automatically decelerating a left traveling motor and a right traveling motor rotated at a second speed by shifting from the second speed to the first speed, and to determine a deceleration threshold that is used for judging whether the automatic deceleration has to be performed or not.
Kohei NAGAO, Yuji FUKUDA, Ryota HAMAMOTO, Hiroaki NAKAGAWA
Filed: 28 Jun 21
Utility
Working Machine
17 Feb 22
A working machine includes a controller to perform automatic deceleration to automatically reduce a first rotation speed of a left traveling motor to output a power to a left traveling device on a left portion of a machine body and a second rotation speed of a right traveling motor to output a power to a right traveling device on a right portion of the machine body by shifting a speed stage of each of the left and right traveling motors from a second speed to a first speed that is lower than the second speed.
Yuji FUKUDA, Kohei NAGAO
Filed: 29 Jul 21
Utility
Working Machine
17 Feb 22
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
Working Machine
17 Feb 22
A working machine includes a first pressure detector configured to detect a first pilot pressure that is a pressure of operation fluid passed through a first traveling fluid line, a second pressure detector configured to detect a second pilot pressure that is a pressure of operation fluid passed through a second traveling fluid line, a third pressure detector configured to detect a third pilot pressure that is a pressure of operation fluid passed through a third traveling fluid line, a fourth pressure detector configured to detect a fourth pilot pressure that is a pressure of operation fluid passed through a fourth traveling fluid line, and a controller configured or programed to judge in which of the left-front, right-front, left-rear and right-rear operation areas an operational position of the traveling operation member exists.
Kohei NAGAO, Yuji FUKUDA, Hiroaki NAKAGAWA, Ryota HAMAMOTO, Tomoyuki NOGUCHI
Filed: 6 Aug 21
Utility
Working Machine
17 Feb 22
A working machine includes a fan motor driven with hydraulic fluid, the fan motor including a first port and a second port, a bypass fluid passage connecting the first port of the fan motor and the second port to each other, a flow rate control valve provided on the bypass fluid passage to control a flow rate of the hydraulic fluid flowing in the bypass fluid passage, a drain passage configured to drain the hydraulic fluid upstream of the flow rate control valve, and an unloading valve shiftable between a full-closing position to close the drain passage and a full-opening position to open the drain passage.
Yuji FUKUDA, Daiki ABE, Ryota HAMAMOTO, Kazuki UEDA, Kohei KURACHI, Yuya KONISHI, Masaki INAOKA, Yasushi OTAGAKI, Yuya TANABE
Filed: 6 Aug 21
Utility
Working Machine
17 Feb 22
A working machine includes a prime mover, a traveling pump configured to deliver hydraulic fluid at a flow rate corresponding to an angle of the swashplate, a traveling motor configured to be rotated by the hydraulic fluid delivered from the traveling pump so as to have a rotation speed shiftable between a first speed and a second speed higher than the first speed, a traveling change-over valve shiftable between a first state to set the rotation speed of the traveling motor to the first speed and a second state to set the rotation speed of the traveling motor to the second speed, an operation device, an operation valve configured to change the angle of the swashplate of the traveling pump according to operation of the operation device, an actuation valve provided upstream or downstream of the operation valve and fluidly connected to the operation valve, and a controller configured or programmed to output a control signal to control the actuation valve in such a way that, when the traveling change-over valve is shifted from the second state to the first state, a value of the control signal is reduced from a set value to a mitigation value less than the set value and then restores to the set value.
Yuji FUKUDA, Ryota HAMAMOTO, Jun TOMITA, Yuya KONISHI, Kazuki UEDA
Filed: 9 Aug 21
Utility
Working Machine
17 Feb 22
A working machine includes a prime mover, a traveling device, a traveling motor configured to output power to the traveling device, a speed shifting valve configured to shift an output speed of the traveling motor between a first speed and a second speed faster than the first speed, an actuation valve configured to change a hydraulic pressure applied to the speed shifting valve, a first fluid passage fluidly connected to the speed shifting valve so that hydraulic fluid having the hydraulic pressure to be applied to the speed shifting valve flows through the first fluid passage, a drain fluid passage fluidly connected to the first fluid passage, a brake shiftable between a braking state to brake the traveling motor and a braking releasing state to release the braking, and a controller configured or programmed to control the actuation valve and the brake, and being capable of activate a warm-up mode.
Yuji FUKUDA, Kohei NAGAO, Hiroaki NAKAGAWA, Ryota HAMAMOTO, Kazuki UEDA, Yudai KOGA, Kohei KURACHI
Filed: 5 Aug 21