Komatsu Corporation

Toru Shiina

Hirotaka Takahashi

Toshiya Shintani

Iwao Kurokawa

Yoshitaka Niigaki

Yosuke Imai

Masanori Ikari

Atsushi Shirao

Masashi Osanai

Kazunori Kamei

Yukio Takami

Takuya Mori

A control section selectively executes one of a first control and a second control when the accelerator opening degree is less than a first opening degree and a switching operation is performed by a forward and reverse switching operation lever. The control section controls a motor capacity control section so as to maintain the capacity of a hydraulic motor before and after the switching operation in the first control. The control section controls the motor capacity control section such that the capacity of the hydraulic motor is a minimum value which is set in advance at each speed level in the second control. The control section executes the first control when the temperature of the hydraulic oil is equal to or less than a first temperature and executes the second control when the temperature of the hydraulic oil is higher than the first temperature.

Wheel loader

A wheel loader includes a vehicle cover defining an engine compartment, an engine arranged inside the engine compartment, an air cleaner, a cover member, and a shielding member. The vehicle cover includes a top plate having an opening section. The air cleaner includes an air cleaner body and an intake tube. The air cleaner body is arranged inside the engine compartment to clean air supplied to the engine. The intake tube has an intake port facing upward. The intake tube protrudes upward from the top plate via the opening section. The cover member has an inlet port to take in air. The cover member is installed on the top plate and covers a surrounding area and a top of the intake tube. The shielding member has a first inclined surface inclined downward toward a first direction. The shielding member is arranged above the intake port in the cover member.

In a work vehicle, a controller controls the displacement of a hydraulic motor by electronically controlling a motor displacement control part. When an inching operation member is being operated, the controller performs inching control for setting the minimum displacement of the hydraulic motor to a greater value in correspondence with a lower pilot pressure detected by a pilot pressure detector.

Industrial vehicle

In a work vehicle, a cutoff-pressure-setting part sets cutoff pressure at a predetermined first pressure value when vehicle speed is greater than a predetermined first speed threshold, and at a second pressure value greater than the first pressure value when vehicle speed is equal to or less than a second speed threshold less than the first speed threshold. When the vehicle is moving forward and the forward/backward switch lever is in forward motion position, or when the vehicle is moving backward and the forward/backward switch lever is in backward motion position, the second speed threshold is set to a predetermined first value. When the vehicle is moving forward and the forward/backward switch lever is in backward motion position or when the vehicle is moving backward and the forward/backward switch lever is in forward motion position, the second speed threshold is set to a second value lower than the first value.

Work vehicle

In the work vehicle, a controller is configured to control a motor displacement control part via feedback control so that the driving hydraulic pressure detected by a driving hydraulic pressure detector approaches a predetermined target driving hydraulic pressure. The controller is configured to perform low temperature motor displacement limitation control, which reduces the maximum displacement of a hydraulic motor, when the temperature of the hydraulic fluid detected by the fluid temperature detector is lower than a predetermined temperature.

An angle formed on a side of a bucket by a first line segment that connects a first pivot region of a bell crank relative to a boom and a second pivot region of the bell crank relative of a connecting link and a second line segment that connects the first pivot region and third a pivot region of the bell crank relative to a tilt cylinder is no more than 206.5&#xb0;. An angle formed by the second line segment and a line segment that connects the third pivot region and fourth a pivot region of the tilt cylinder relative to a structural body is, in a fork-attached state, no more than 72.3&#xb0;. When a pivot region of the fork relative to the boom is substantially 1.5 m from the ground, a lower end of the bell crank is located higher than a lower end of the fork.

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Komatsu, Japan

Toru Shiina