Abstract: A work machine comprising a main body and a cab riser. The cab riser includes a cab and a frame comprising a first plate to contact a second plate provided on the main body in a first position which the cab is uprightly positioned on the work machine. The first and the second plate are coupled together to sandwich a key plate in the first position, the key plate being disposed in a space created by a first recess on a lower surface of the first plate and a second recess on an upper surface of the second plate, the second recess being aligned with the first recess vertically in the first position, and the key plate includes a first contact surface as a slope surface and a top surface being adjacent to the slope surface in the cross sectional view of the key plate.

Abstract: A work machine comprising a main body and a cab riser. The cab riser includes a cab and a frame comprising a first plate to contact a second plate provided on the main body in a first position which the cab is uprightly positioned on the work machine. The first and the second plate are coupled together to sandwich a key plate in the first position, the key plate being disposed in a space created by a first recess on a lower surface of the first plate and a second recess on an upper surface of the second plate, the second recess being aligned with the first recess vertically in the first position, and the key plate includes a first contact surface as a slope surface and a top surface being adjacent to the slope surface in the cross sectional view of the key plate.

Abstract: A work machine comprises a main body, a cab riser, and a shaft. The cab riser includes a cab and a frame, the cab being uprightly positioned on the work machine in a first position, and being tilted forward in a second position, and the frame comprising a first plate to contact a second plate provided on the main body in the first position. The cab riser is rotatable about the shaft in clockwise and counterclockwise directions to and from the first position and the second position. The first plate and the second plate can be clamped together by a clamping assembly in the first position, the clamping assembly including one or more clamps to clamp the first plate and the second plate, and the clamping assembly is mounted on the main body.

Abstract: A front linkage for a construction machine which can uniquely calculate the rotation angle of the work tool relative to the arm and which can prevent the angle detection device from being damaged by contact with the soil during digging. The front linkage has an arm, a first link pivotally connected at one end to the front end side of the arm, and at the other end to one end of a second link, and a work tool which is pivotally connected to the other end of the second link and which is pivotally connected to the arm in a further front end side than the one end portion of the first link. The first link is positioned outward along the outer width of the side wall of the arm. An angle detecting device for detecting the rotation angle of the first link relative to the arm may comprise a magnet disposed on an inner surface of the first link and a magnetic detector disposed on the side wall outer surface of the arm.

Abstract: A front linkage for a construction machine which can uniquely calculate the rotation angle of the work tool relative to the arm and which can prevent the angle detection device from being damaged by contact with the soil during digging. The front linkage has an arm, a first link pivotally connected at one end to the front end side of the arm, and at the other end to one end of a second link, and a work tool which is pivotally connected to the other end of the second link and which is pivotally connected to the arm in a further front end side than the one end portion of the first link. The first link is positioned outward along the outer width of the side wall of the arm. An angle detecting device for detecting the rotation angle of the first link relative to the arm may comprise a magnet disposed on an inner surface of the first link and a magnetic detector disposed on the side wall outer surface of the arm.

Abstract: Fixture including a band and a holding member enables a long-size object to be held on a mounting member regardless of the holding member thickness. With the locking member on one side of the mounting member, one end of the band extends through a slot in the mounting member and through a first through-slot of the holding member, a contact surface of the holding member abuting the mounting member. The band extends around the long-size object held on a holding member holding surface, and through a second through-slot to a surface away from the holding surface and the abutting surface.

Abstract: Fixture including a band and a holding member enables a long-size object to be held on a mounting member regardless of the holding member thickness. With the locking member on one side of the mounting member, one end of the band extends through a slot in the mounting member and through a first through-slot of the holding member, a contact surface of the holding member abuting the mounting member. The band extends around the long-size object held on a holding member holding surface, and through a second through-slot to a surface away from the holding surface and the abutting surface.

Abstract: A catwalk has outer and inner tilt up portions at most outer end from swing center. The outer tilt up portion is installed around first axis near the side, and has outer walkway above the axis and outer from the side, and is installed to rotate between horizontal and upper positions. The inner tilt up portion is installed around second axis above the first axis, and has inner walkway on the same plain with outer walkway, and is installed to rotate between horizontal and upper positions with the push up movement of the outer tilt up portion.

Abstract: A catwalk for a machine is disclosed. The machine may have an upper slewing body. The catwalk may be a passage extending from a front end to a rear end. The catwalk may be installed along a side surface of the upper slewing body. The catwalk may have a fixed portion. The fixed portion may extend from adjacent the front end to adjacent a central location disposed between the front end and the rear end. The catwalk may also have a movable portion. The movable portion may extend from adjacent the central location to adjacent the rear end. The movable portion may be pivotable about an axis positioned generally parallel to the upper slewing body.