Hokkaido Railway Company

Hitachi Nico Transmission, Co., Ltd.

Toho Sheet Frame Co., Ltd.

Hirohiko Kakinuma

Iwao Sato

Hideki Nakamura

Tomonori Kamaka

Yoji Shimokawa

Susumu Inagaki

Tomoaki Kito

Hiroyuki Ihara

Tadashi Inaba

Ryo Karasawa

Takahiro Ono

A multi-layered window structure of the present invention includes: a first window pane made of glass; a second window pane made of polycarbonate, being smaller in both height and width than the first window pane, and formed to a thickness of 5 mm to 30 mm; a hollow annular spacer disposed so as to extend along edges of the first window pane and the second window pane, and having holes in a side wall facing an air layer between the first window pane and the second window pane; and a primary sealer being an elastic body, with a thickness of 0.5 mm or more and a width of 6 mm or more, that extends along the edges of the first window pane and the second window pane, and is disposed between the first window pane and the spacer, and between the second window pane and the spacer.

Multi-layered window structure

Provided is a track car drive system, which is assisted by a generator motor so that it may attain a gear array for equalizing the number of speed range and the gear ratios at the individual gears as a transmission for the forward speed and the backward speed and which can be combined with the generator motor. A transmission () for receiving the output of an engine () at an input shaft () is constituted by combining a forward range () and a backward range () with two intermediate shafts (and) having different speed ranges (to) between themselves and an output shaft (). By shifting/fastening a first clutch () or a second clutch () selectively, the rotation of either the forward range () or the backward range () is transmitted to either of the intermediate shafts (and). When one of the speed ranges (to) is selected, the same gear number and gear ratio are taken no matter whether the track car might run forward or backward. The assist force by the generator motor () is applied from a differential mechanism () through the two intermediate shafts (and) to the output shaft ().

Track car drive system, and track car using the system

Growing community of inventors

Sapporo, Japan

Hirohiko Kakinuma