Kobe Steel, Ltd.

Kobelco Construction Machinery Co., Ltd.

Kabushiki Kaisha Kobe Seiko Sho

Hiroshi Hashimoto

Koji Inoue

Takashi Hiekata

Kenichi Inoue

Akio Sugimoto

Takayasu Fujiura

Naoya Fujiwara

Naoki Kikuchi

Toshiaki Shimoda

Tetsuya Ogawa

Hiroyuki Mitani

Hiroaki Kawai

Toshiro Yamashita

Kyoji Zaitsu

Hirofumi Hojo

Eiichiro Yoshikawa

Akira Nakazumi

Tsutomu Morimoto

Yoshiro Nishimoto

Shintaroh Sasai

Shumpei Hayashi

Osamu Ozaki

Shogo Nakatsukasa

Tetsuya Takahashi

Takashi Tokuyama

Hiroyoshi Matsui

Yoshiaki Kitamura

Toru Takahashi

Ryo Shimada

Ryo Toda

Masahiko Toyoshima

Masahiro Nishisaka

Nagoya Fujiwara

Tomohiro Taira

Fujiwara Naoya

A welding power source is configured to supply a welding current to a wire as a consumable electrode. The welding power source includes a controller configured to change the welding current based on a position of a distal end of the wire a distance from which to a surface of a base metal varies periodically, in a case where the distal end of the wire is fed toward the base metal with periodical switching between a forward feeding period and a reverse feeding period.

Welding power source, welding system, welding power source control method, and program

A force sense imparting operation device that imparts a force sense in accordance with a load acting on an actuation device. The device includes an operation member, a displacement detector, a load detector, a force sense generator that imparts a force sense to an operator who operates the operation member, a current controller that performs an actual control and a preliminary control, the actual control increasing the force sense imparted by the force sense generator by increasing an excitation current in response to an increase in the load, the preliminary control supplying the excitation current to an excitation coil prior to the actual control, the excitation current supplied by the preliminary control being set to a preliminary current value lower than the excitation current supplied to the excitation coil under the actual control, and a current supplying portion that supplies the excitation current to the excitation coil.

Force sense imparting operation device

A construction machine includes a boom, an operator cab, a distance sensor, a displacement detection unit, a storage unit, and a position information acquisition unit. The distance sensor has a predetermined field of view and acquires distance image data indicating a distance distribution of an environment around the operator cab. The storage unit stores initial position information of the boom. The displacement detection unit compares comparative position information of the boom, the comparative position information being acquired from the distance image data by the position information acquisition unit, with initial position information of the boom stored in the storage unit to detect a displacement of the distance sensor with respect to the operator cab when the boom is brought into an initial posture again after initial setting.

Construction machine

An output-torque estimation unit obtains a value of a current input to a motor, from a power converter, and calculates an estimated output torque value which is an estimated value of output torque of the motor, from the obtained value of the current. A load estimation unit estimates a load value of a hanging cargo based on the estimated output torque value which is calculated by the output-torque estimation unit, a speed reduction ratio of a speed reducer, an effective radius of a winch drum, and the winding number which is set by the number setting unit.

Load detector, and winding apparatus for crane comprising said detector

There is provided a construction machine that can detect a positional displacement of a detection unit, the machine including a body, a plurality of distance sensors, a position information acquisition unit, and a positional displacement detection unit. The distance sensors are disposed so that detection areas of the distance sensors partially overlap. When a predetermined target is placed in an overlapping detection area, the positional displacement detection unit compares position information of the target that is acquired from distance image data of one distance sensor by the position information acquisition unit to position information of the target that is acquired from distance image data of the other distance sensor by the position information acquisition unit to detect a positional displacement of at least one of the one distance sensor and the other distance sensor with respect to the body.

The present invention is to provide a launcher for an underwater vehicle by which thrust force of a mover arranged movably in a water conducting tube can efficiently be obtained. The mover forms a plurality of magnetic circuits in which magnetic flux generated by a plurality of permanent magnets flows, and the plurality of magnetic circuits includes a first magnetic circuit in which the magnetic flux flows through one of a pair of circumferential magnets, a second magnetic circuit in which the magnetic flux flows through one of a pair of axial magnets, the second magnetic circuit being formed in parallel to the first magnetic circuit, and a third magnetic circuit in which the magnetic flux flows through a radial magnet, the third magnetic circuit being formed in parallel to the first magnetic circuit and the second magnetic circuit, respectively.

Launcher for underwater vehicle

A core member () of the disclosed reactor (Da) comprises a magnetic wire material and is arranged outside a plurality of coils (). As the core member () in the reactor (Da) having this structure is a wire material and is arranged outside the plurality of coils (), the core member () can be formed by the winding of the wire material, simplifying manufacturing.

Reactor

A busbar of the present invention increases yield per metal material in comparison to plate-shaped bus bars, enables provision of protrusions on a member located inside relative to a conductor, and enables formation of the busbar in a bent shape. The busbar of the present invention is provided with a busbar insulator (), a busbar conductor (), a busbar insulator (), a busbar conductor (), and a busbar insulator () formed outside of a busbar center conductor (). These conductors and insulators are arranged alternately from the inner side towards the outer side in a radial direction (R) that intersects at right angles with the axial direction (A) of the bus bar. The busbar conductors () are provided with openings () along the whole length in the axial direction (A) thereof.

Bus bar, method of manufacturing the same, and bus bar and connector

Provided is a reactor that enables high inductance to be generated with stability in a wide current range, while minimizing noise, processing cost, and eddy-current loss. The reactor (D) has the ratio (t/W) of the width (W) to the thickness (t) of a conductive member that composes an air-core coil configured to be 1 or less, and preferably, 1/10 or less. Furthermore, the reactor also has the absolute value of a value ((L&#x2212;L)/L) that has had: the difference (L&#x2212;L) between; the space interval (L) between an inner wall face of a first core member () and an inner wall face of a second core member (), at the innermost circumference position of the air-core coil (); and the space (L) between the inner wall face of the first core member () and the inner wall face of the second core member (), at the outermost circumference position of the air-core coil (); divided by an average value (L); configured to be 1/50 or less. The ratio (R/W) of the radius (R), from the axis-center (O) of the air-core coil () to the outer circumference of the air-core coil (), to the width (W) of the air-core coil () (conductive member), is 2=R/W=4.

A projected end of a bus bar (), including projection portions (A,B,C,D,E,F), and a recessed connector (), including a cylindrical portion (A), a recess portion (B), a cylindrical portion (C), a recess portion (D), a cylindrical portion (E), and a recess portion (F), are engaged with each other, thereby enabling the bus bar () and the connector () to electrically connect with each other. That is, only inserting the bus bar () into the connector () makes an electrical connection possible, so it is not necessary, for example, to fasten the terminal with a screw. Therefore, this facilitates the connection between the bus bar () and the connector ().

Bus bar and connector

Speakerphone

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Kobe, Japan

Hiroshi Hashimoto