Kobelco Construction Machinery Co., Ltd.

Kobe Steel, Ltd.

Kabushiki Kaisha Kobe Seiko Sho

Masashi Kawabata

Koji Yamashita

Yasumasa Kimura

Masatsugu Hamasaki

Yoshimune Mori

Shoji Yoichi

Ryo Uchiyama

Kazuhiro Ueda

Shuichi Ono

Kyoko Masuda

Eri Watanabe

Takahiro Shinozaki

Kiyotsuna Kuchiki

Masaya Nishizawa

Tomonori Nakashita

Masashi Irie

The vibration of a cab deck as well as the mass of a deck supporting member is suppressed. A slewing frame of an upper slewing body includes a front plate connected to a second side plate. A cab deck is disposed on a front side of an engine deck with a gap between the cab deck and the engine deck. A deck supporting member is connected to the second side plate and the cab deck. When viewed along an up-and-down direction, a connection portion of the front plate to be connected to the second side plate is opposed to, in the lateral direction via the second side plate, a connection portion of the deck supporting member to be connected to the second side plate.

Upper slewing body

A drive device for a construction machine, which includes a speed reducer and a brake mechanism, wherein the speed reducer has a casing in which lubricating oil and the brake mechanism are provided, and wherein the brake mechanism includes: a ring-shaped brake piston; and a brake plate configured to generate a braking force by a pressing force of the brake piston, and wherein the brake piston has: a plurality of oil pockets provided in the brake piston at respective positions along a circumferential direction of the brake piston, each of the oil pockets formed as a space capable of storing lubricating oil; oil inlets allowing lubricating oil rising during operation of the drive device to be introduced into the oil pockets respectively; and oil outlets allowing lubricating oil stored in the respective oil pockets to be discharged.

Drive device for construction machine

A drive device for a construction machine includes a speed reduction unit reducing speed of rotational force output from a motor, the speed reduction unit has a gear mechanism provided in a casing and reducing the speed of the rotational force output from the motor, and an oil receiver arranged above the gear mechanism in the casing, the oil receiver forms a main storage space for storing the lubricant oil, and is arranged in the casing such that an oil passage for guiding a rising lubricant oil to the main storage space is formed between an outer surface of the oil receiver and an inner wall surface of the casing, the oil receiver is provided with an oil drain opening, the oil drain opening designed to gradually discharge the lubricant oil stored in the main storage space toward the gear mechanism through the oil drain opening.

A hydraulic tubing support that reduces noise transmitted to an operator due to pulsation of hydraulic oil in a junction tube. The hydraulic tubing support structure includes a pair of left and right remote control valves for generating pilot pressures for the plurality of hydraulic actuators in response to an input operation performed on each operating lever, pump-side tubes and tank-side tubes respectively extending from the respective remote control valves, a junction tube for allowing communication of the tubes guided to below a floor plate through a through hole and communication of the tubes guided to below the floor plate through a through hole, and a middle reinforcement beam extending in a right-and-left direction and fixed to the lower surface of the floor plate. The junction tube is fixed to the middle reinforcement beam in a non-contact state with the floor plate.

Hydraulic tubing support structure and operating machine provided therewith

Growing community of inventors

Kobe, Japan

Masashi Kawabata