Caterpillar Sarl

Shin Caterpillar Mitsubishi Ltd.

Takahiro Iwamoto

Takeshi Tsuneyoshi

Kentaro Nakayama

Takeshi Nakamura

Toshiyuki Matsumoto

Akito Nakai

Hiroyasu Nishikawa

Takuya Yamamoto

Ryo Iguchi

Dharmesh Kumar

Koichi Andatsu

To improve the precision of position of a fastener hole and a seating face for mounting a counterweight, a counterweight supporting member is comprised of a support plate erected and fixed at the rear end of a revolving frame and a supporting member attached to the support plate. A cylindrical bolt fastening boss is provided on the supporting member in a manner of rotational position adjustable to the supporting plate and in which a fastener hole is formed at an eccentric position.

Counterweight supporting structure for construction machine

The present invention aims to improve the strength of the portion of the swing frame for attaching the swing motor apparatus while reducing cost. A bottom plate of a swing frame is divided into a center bottom plate segment to which the swing motor apparatus mounting portion is attached, a front bottom plate segment that is positioned to the front side of the center bottom plate segment and to which the center joint mounting portion is attached, and a rear bottom plate segment positioned to the rear side of the center bottom plate segment, wherein: the center, front, and rear bottom plate segments and are formed integrally by welding; and the plate thickness of the center bottom plate segment is thicker than the plate thickness of the front bottom plate segment and the rear bottom plate segment.

Shovel-type construction machine

To improve the precision of position of a fastener hole and a seating face for mounting a counterweight, a counterweight supporting member is comprised of a support plate erected and fixed at the rear end of a revolving frame and a supporting member attached to the support plate. The supporting member is comprised of a base member that is locked and secured to a through hole opened on the support plate in a back and forth adjustable manner and has a counterweight fixing surface and a bolt fastening member in which a fastener hole for receiving a fastener bolt is formed.

This invention relates to a cab support structure for construction machine. The cab support structure has a rear beam and a front beam, which support front and rear part of cab, and a center beam located and welded between inner and outer frames of the machine. A stopper located at the corner of center beam side of the junction of rear beam and outer frame is formed box shape. The stopper has an L-shaped plate welded to the rear beam and the outer frame, and a doubling L-shaped plate welded to the L-shaped plate, rear beam, and outer frame.

Cab support structure of construction machine

A piping structure of a working machine, which prevents damage to the hoses that are so arranged as can be flexibly bent on the working machine. The piping structure of a working machine comprises a guide cylinder in which is slidably inserted an intermediate portion of hose to define the bending position of the hose.

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Tokyo, Japan

Takahiro Iwamoto