Kubota Corporation

Yoshitaka Matsubara

Yasuo Nakata

Junta Kuwae

Toshihiko Takemura

Ryohei Sumiyoshi

Hiroyuki Anami

Yoshihiro Ueda

Toyoaki Yasuda

Masanori Fujino

Naoya Muramoto

Kenji Mitsui

Takeshi Ikumura

Yuuki Takano

Yusuke Kawai

Youhei Kawano

Shizuo Shimoie

Kenzo Koga

Keiichi Hara

Yoshio Tomiyama

Teruo Kunizawa

Kenji Ikeda

Tadashi Kusunoki

Yoshihiro Kato

Tomoaki Miyake

Fumiki Sato

Takanori Matsumoto

Takao Watanabe

A loader work machine is disclosed in which a base portion of each of right/left arms () is received by an arm support portion () of a first lift link () and pivotally supported by a first arm shaft (), and a hydraulic pipe arrangement () connected to a hydraulic actuator () extend through an support frame () from inside to outside of its inner wall (), and toward an arm (). The base portion of the arm () is supported to the arm support portion () at a position adjacent a link outer wall () in a transverse direction so that a hose accommodation space () is formed between a link inner wall () and an internal side face of the base portion of the arm (). The hydraulic pipe arrangement () runs frontward of the first arm shaft () and a first link shaft (), and is disposed in the hose accommodation space ().

Loader work machine

Positional relationship among the first link support shaft (), the second link support shaft (), the first arm support shaft () and the second arm support shaft () is set such that an upper portion of the first lift link () comes into substantial agreement with a rear end of the machine body (), when the upper free end of the first lift link () is pivoted maximally rearward in the course of transition of the arm () from a lowermost state realized lifting down the arm () to an uppermost state realized by lifting up the arm ().

A hood for a loader work machine is provided at the rear end of the frame body and downwardly of the transverse connecting member between the pair of right/left support frame members. The transverse connecting member includes a front wall plate and an upper wall plate projecting rearward from an upper end of the front wall plate. The upper wall plate of the transverse connecting member is disposed more downwardly than the vertical center of the cabin. A rear portion of the upper wall plate is inclined downwardly rearward. A hood upper wall is provided for covering a rear upper side between the pair of right/left support frame members. A front end portion of the hood upper wall is connected to the rear portion of the upper wall plate of the transverse connecting member. The hood upper wall is inclined downwardly rearward in correspondence with the rear portion of the upper wall plate.

Backhoe

Cabin for work machine

Hood and protector portion of a backhoe

A backhoe ( ) includes an upper structure ( ) supported by a traveling device ( ) to be rotatable about a vertical swivel axis (X). The upper structure ( ) carries an excavator ( ) and a cab ( ) and has a rear edge ( A) formed arcuate about the swivel axis (X) in plan view. The cab ( ) defines an opening ( ) with a door ( ) attached through hinges ( ). The door ( ) is pivotable about a vertical open/close axis (Y) of hinges ( ). The hinges ( ) are arranged on a rear edge opening ( ). Each hinge ( ) includes a pair of hinges ( A and B) which are bent to place the axis (Y) forwardly of the rear end of door ( ). Consequently, when the door ( ) is set to a fully open position, the free end of door ( ) is displaced to a position forwardly of the rear edge ( A) of upper structure ( ).

Wheel loader

A control device capable of selectively controlling either one of two controlled members with the use of one control means. The control device incorporates a link and a lock member. The pivot structure of an arm between the link and the control means is improved, thereby to provide a smooth swing of the link.

Control device

Crawler travelling apparatus in which a crawler having crawler links is windingly laid over the driving wheel and the take-up wheel, guide wheels are disposed at the frame for guiding the lower travel portion of the crawler, and the lateral outer portions of the guide wheels are covered by an earth and sand protection cover. Further disposed at the frame is an auxiliary cover so as to form an earth and sand discharging opening together with the first-mentioned cover.

Crawler travelling apparatus

A driver's seat mounting structure for a tractor which carries work implements at the front and the back, and operation units associated with the respective work implements, which units are disposed at different vertical planes, one in front of the driver's seat and the other behind it. The seat is movable between forward facing and rearward facing positions. The seat mounting structure comprises a mounting member to carry the seat for rotation about a vertical axis and for locking it in position. The seat mounting member is attached to the tractor body by a parallelogram link mechanism which is oscillatable and lockable on axes extending transversely of the tractor body. By using this parallelogram link mechanism, the position of the driver's seat is changed in a convenient manner.

Driver's seat mounting structure for a tractor

Growing community of inventors

Osaka, Japan

Yoshitaka Matsubara