Abstract: A floor mat arranged in a working machine includes a floor portion, a wall portion arranged on a circumferential portion of the floor portion, and an opening portion arranged on a part of a connecting portion of the wall portion, the connecting portion connecting to the floor portion. The floor mat includes a mat main body arranged on the floor portion, a covering portion configured to cover the opening portion, and an connecting portion configured to connect the covering portion flexibly to a circumferential portion of the mat main body.

Abstract: A belt tension adjustment device includes a driving pulley attached to a power transmission shaft, a driven pulley arranged in a driven device, a tension pulley, a loop belt arranged between the driving pulley, the driven pulley, and the tension pulley, and configured to transmit a rotational driving force of the power transmission shaft to the driven device, and a tension adjustment mechanism to adjust tension of the loop belt. The tension adjustment mechanism includes a support shaft rotatably supported, a rotational operation mechanism to rotate the support shaft about an axis of the support shaft, and a rotating member coupling the support shaft and the tension pulley, configured to change a relative position of the tension pulley with respect to the driving pulley and the driven pulley in accordance with rotating of the support shaft.

Abstract: A floor mat arranged in a working machine includes a floor portion, a wall portion arranged on a circumferential portion of the floor portion, and an opening portion arranged on a part of a connecting portion of the wall portion, the connecting portion connecting to the floor portion. The floor mat includes a mat main body arranged on the floor portion, a covering portion configured to cover the opening portion, and an connecting portion configured to connect the covering portion flexibly to a circumferential portion of the mat main body.

Abstract: A belt tension adjustment device includes a driving pulley attached to a power transmission shaft, a driven pulley arranged in a driven device, a tension pulley, a loop belt arranged between the driving pulley, the driven pulley, and the tension pulley, and configured to transmit a rotational driving force of the power transmission shaft to the driven device, and a tension adjustment mechanism to adjust tension of the loop belt. The tension adjustment mechanism includes a support shaft rotatably supported, a rotational operation mechanism to rotate the support shaft about an axis of the support shaft, and a rotating member coupling the support shaft and the tension pulley, configured to change a relative position of the tension pulley with respect to the driving pulley and the driven pulley in accordance with rotating of the support shaft.

Abstract: A floor mat arranged in a working machine includes a floor portion, a wall portion arranged on a circumferential portion of the floor portion, and an opening portion arranged on a part of a connecting portion of the wall portion, the connecting portion connecting to the floor portion. The floor mat includes a mat main body arranged on the floor portion, a covering portion configured to cover the opening portion, and an connecting portion configured to connect the covering portion flexibly to a circumferential portion of the mat main body.

Abstract: A cabin is mounted on a device frame, and hydraulic equipment is placed on a pedestal of the device frame. In this configuration, an attachment body of a front lower part of the cabin is disposed and attached onto an installation part on a front part of the pedestal; providing a front cover between the front part of the pedestal and the front lower part of the cabin for covering forward and outward of the hydraulic equipment; and providing a front plate on the front lower part of the cabin for supporting a lower edge of a front glass. A vertically intermediate portion of an inner surface of the front plate is fixed to the attachment body, and a lower part of the front plate is placed on an upper side of the cover to thereby cover forward and upward of the installation part of the pedestal.

Abstract: A cabin is mounted on a device frame, and hydraulic equipment is placed on a pedestal of the device frame. In this configuration, an attachment body of a front lower part of the cabin is disposed and attached onto an installation part on a front part of the pedestal; providing a front cover between the front part of the pedestal and the front lower part of the cabin for covering forward and outward of the hydraulic equipment; and providing a front plate on the front lower part of the cabin for supporting a lower edge of a front glass. A vertically intermediate portion of an inner surface of the front plate is fixed to the attachment body, and a lower part of the front plate is placed on an upper side of the cover to thereby cover forward and upward of the installation part of the pedestal.

Abstract: A swivel frame for a swivel work machine includes a swivel base plate supported on a traveling machine body to be pivotable about a swivel axis and mounting an engine at a rear portion thereof, a support bracket provided at a front end of the swivel base plate for supporting an excavator, a partition wall provided on the swivel base plate for partitioning space forwardly of the engine in the fore/aft direction, and a pair of right and left vertical ribs provided on the swivel base plate for interconnecting the support bracket and the partition wall. The swivel base plate is divided into a rear plate portion on the rear side thereof and a front plate portion on the front side thereof, the rear plate portion being formed of a plate thinner than the front plate portion. The rear plate portion and the front plate portion are fixedly connected to each other in such in a manner that upper surfaces thereof are flush each other. A rear portion of the front plate portion projects more rearward than the partition wall.

Abstract: A swivel frame for a swivel work machine includes a swivel base plate supported on a traveling machine body to be pivotable about a swivel axis and mounting an engine at a rear portion thereof, a support bracket provided at a front end of the swivel base plate for supporting an excavator, a partition wall provided on the swivel base plate for partitioning space forwardly of the engine in the fore/aft direction, and a pair of right and left vertical ribs provided on the swivel base plate for interconnecting the support bracket and the partition wall. The swivel base plate is divided into a rear plate portion on the rear side thereof and a front plate portion on the front side thereof, the rear plate portion being formed of a plate thinner than the front plate portion. The rear plate portion and the front plate portion are fixedly connected to each other in such in a manner that upper surfaces thereof are flush each other. A rear portion of the front plate portion projects more rearward than the partition wall.

Abstract: Shoes having wear indicators are mounted on inner circumferential sides of side link plates of link frame bodies. The link frame bodies are interconnected longitudinally to form a cable protection and guide device. During operation, the device folds back upon itself such that the shoes of some of the link frame bodies slidingly engage the shoes of other link frame bodies. The indicator may be a groove, may employ a two color resin, may be a metal plate and may be positioned and sized to provide caution and limit indications as desired.

Abstract: Shoes having wear indicators are mounted on inner circumferential sides of side link plates of link frame bodies. The link frame bodies are interconnected longitudinally to form a cable protection and guide device. During operation, the device folds back upon itself such that the shoes of some of the link frame bodies slidingly engage the shoes of other link frame bodies. The indicator may be a groove, may employ a two color resin, may be a metal plate and may be positioned and sized to provide caution and limit indications as desired.