Hitachi, Ltd.

Hitachi Taga Engineering, Ltd.

Hiroshi Kato

Takashi Shiraishi

Takashi Hashimoto

Tomoaki Sakata

Keisuke Yamaoka

Shizuo Yamazaki

Tsutomu Kuse

Mikio Rachi

Hiroshi Hasegawa

Mitsuru Saeki

Tsutomu Hasegawa

Takashi Matsunobu

Hidetoshi Inaba

Youichi Kawakami

Hiroshi Soutome

A downwind type wind turbine having a transformer stored in a support post or in a nacelle includes the nacelle which supports a rotor and stores therein a generator, a support post which supports the nacelle and a main transformer disposed between the generator and an electric power system and the main transformer is stored in the nacelle or in the support post.

Downwind type wind turbine having transformer therein and operating method thereof

An automatic assembling system for assembling a product constituted by a plurality of parts, includes a group cell having a plurality of assembling cells and inspecting cells, pallets loaded with the same type of parts or products, at least one buffer for holding a plurality of pallets, and at least one pallet hand-over mechanism for transferring pallets between the buffer and each cell. At least one of the buffers is provided in common for a plurality of cells, and at least one of the pallet hand-over mechanisms is provided to the common buffer.

Automatic assembling system

In a case of a document preparation using a reduced picture, since a position indicated by a pointing device is displayed always on an enlarged display window, the scrolling operation of the window for carrying out an enlarged display is reduced. When a part of a document displayed reduced on a 'window 1' is indicated by a pointing device, at an indicated position a cursor of the 'window 1' is made to move automatically. A cursor of a 'window 2' is made to move by working together of the movement of the cursor of the 'window 1'. At that time, in a case in which the cursor position is not displayed on the 'window 2', the cursor display position in the 'window' is scrolled automatically. Since the cursor display position in the 'window' is scrolled automatically, it is unnecessary to perform the scrolling operation of the 'window 2'. In a case of a document preparation using a reduced picture, the scrolling operation of the 'window 2' for carrying out an enlarged display is reduced.

Differently magnified interlocked windows with automatic scrolling

The turn-of-nut tightening method that is improved by determining the starting point only through measurements of the angle and time relationship to determine the linear portion of the tightening curve, which is extended to the previous free running speed point where the corresponding angle is determined as the starting angle, to which is added a fixed turning amount to control the end of the tightening. As a specific embodiment, the turning angle is chosen as the variable and measured with specific time intervals. Using fixed time intervals, time is removed as a variable. Therefore, with a simple and economical angle measuring device, such as a shaft encoder, tightening is accurately controlled.

Rotational angle control of screw tightening

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Hadano, Japan

Hiroshi Kato