Abstract: A crusher for crushing cooked wood chips or the like finely. A raw material to be crushed such as the cooked wood chips is delivered into a housing and clamped between stationary blades attached to a stationary plate housed in the upper end of the housing and rotary blades attached to a rotary plate rotating in the housing, so that it is finely crushed by the stationary blades and the rotary blades by making use of the planer principle. The crushed products are carried in the air flow, which is generated around a guide vane disc, which rotates in a through hole formed in a substantially central portion of the stationary plate, and forcibly delivered from an exit in the housing side wall front portion inclined forward, to the outside of the housing.

Abstract: An operator cab 53, which is mounted rotatable on the vehicle body 51 of a hydraulic mini-shovel 50, comprises a cab box 1, a door 2, upper and lower link members 3 and 4, a slide member 6, a closed door stopper 12 and an opened door stopper 11. The cab box 1 has an internal cab room 1a and an entrance 15, which leads into the cab room 1a. The door 2 closes and opens the entrance 15 when it is moved forward and rearward, respectively. The upper and lower link members 3 and 4 have fixed ends 3a and 4a, each of which is connected pivotally to the cab box 1, and moving ends 3b and 4b, each of which is connected pivotally to the front end of the door 2. The slide member 6 comprises a bumper 6a, which is provided at the rear end of the door 2, and a rocker 6b, which is connected pivotally to the bumper 6a so as to swing freely and slides along a slide rail 5, which is provided externally on the cab box 1.

Abstract: An operator cab 53, which is mounted rotatable on the vehicle body 51 of a hydraulic mini-shovel 50, comprises a cab box 1, a door 2, upper and lower link members 3 and 4, and a slide rail 5. The cab box 1 has an internal cab room 1a and an entrance 15, which leads into the cab room 1a. The door 2 closes and opens the entrance 15 when it is moved forward and rearward, respectively. The upper and lower link members 3 and 4 have fixed ends 3a and 4a, each of which is connected pivotally to the cab box 1, and moving ends 3b and 4b, each of which is connected pivotally to the front end of the door 2. The slide member 6 is connected pivotally to the rear end of the door 2 and slides along a slide rail 5, which is provided externally on the cab box 1.

Abstract: An operator cab 53, which is mounted rotatable on the vehicle body 51 of a hydraulic mini-shovel 50, comprises a cab box 1, a door 2, upper and lower link members 3 and 4, a slide member 6, a closed door lock 7, an opened door lock 9 and a handle 13. The cab box 1 has an internal cab room 1a and an entrance 15, which leads into the cab room 1a. The door 2 closes and opens the entrance 15 when it is moved forward and rearward, respectively. The upper and lower link members 3 and 4 have fixed ends 3a and 4a, each of which is connected pivotally to the cab box 1, and moving ends 3b and 4b, each of which is connected pivotally to the front end of the door 2. The slide member 6 is connected pivotally to the rear end of the door 2 so as to swing freely and slides along a slide rail 5, which is provided externally on the cab box 1. The closed door lock 7, which is provided at the front end of the door 2, engages with a closed door striker 8, which is provided on the cab box 1, when the door 2 is closed.

Abstract: The arm lowering motion restricting device 40 comprises an arm restricting member 41 which can be freely swung upward and downward, one end portion of which is pivotably connected to the arm 21, and which extends so as to cover the upper surface of the raising and lowering cylinder 23, a locking pin 50 which is detachably passed through the lower end portion of the arm restricting member 41, and a torsion coil spring 60 which is attached to the upper portion of the tip end of the arm restricting member 41. When the raising and lowering cylinder 23 is extended so that the tip end portion of the arm restricting member 41 contacts the end surface 23b1 of the cylinder tube 23b on the cylinder rod side, the retraction of the raising and lowering cylinder 23 is restricted.

Abstract: The crawler belt 20 is structured of a plurality of inner shoes 21; a plurality of outer shoes 30 arranged to oppose each of the inner shoes; an endless ring-shaped rubber belt member 26 retained between the inner shoes and outer shoes respectively opposing each other; and an endless ring-shaped steel wire 27 embedded in the belt member extending in the longitudinal direction. The inner shoes 21 are arranged side by side along the inner periphery of the belt member, the outer shoes are arranged side by side along the outer periphery of the belt member, and concave portions are arranged in the longitudinal direction between the inner shoes and formed openly toward the inner periphery for receiving the sprocket teeth. Thereby, it is possible to reduce the travel noise while maintaining the advantages of the strength, durability and repairability of steel crawler belts.