A construction machine 1 includes: a cab 6 that includes a first frame body 15 forming an opening portion 16; a door 17 that includes a second frame body 18 attached to the first frame body 15 via hinges 19; an open state holding locking mechanism 22 that holds the door 17 in an open state; and an open state holding locking release lever 28 that releases the open state holding of the door 17 achieved by the open state holding locking mechanism 22, the first frame body 15 including a first insertion hole formed in a first side end wall 15a to which the hinges 19 are attached and a first room 31, a second frame body 18 including a second insertion hole 32 formed in a second side end wall 18a to which the hinges 19 are attached and a second room 33, the wire harness 34 being arranged from the first room 31 to the second room 33 via the first insertion hole 30 and the second insertion hole 32, the first insertion hole 30 and the second insertion hole 32 being provided on a side further upward than the open state holding locking release lever 28.

The present disclosure relates to a loader, including: a frame, including a chassis, and a bearing portion mounted above the chassis; a cab, mounted on the chassis and located in front of the bearing portion; a movable arm, including a front end located in front of the cab, and a rear end located at a rear part of the frame; a rear connecting rod, including a first end hinged with the bearing portion, and a second end hinged with the movable arm; a front connecting rod, including a first end hinged with the bearing portion, and a second end hinged withe movable arm; and a hydraulic cylinder, including a first end hinged with the bearing portion, and a second end hinged with the movable arm, so as to drive the front end of the movable arm to switch between a lower position and a upper position. The bearing portion is located below a rear window of the cab or at a side part of the rear window. By applying the technical solution of the present disclosure, the bearing portion is positioned below the rear window of the cab or located at the side part of the rear window, so that the problem of poor rear view of a skid steer loader in the related art is solved.

An internal support structure for fuel cells within a work machine having a rear end frame with an exterior frame wall in which the fuel cells are stored is disclosed. The internal support structure may include a radiator support housing, a first pedestal and a second pedestal mounted to and extending upward from the bottom wall. The radiator support housing may be disposed proximate a radiator opening of the exterior frame wall, and the pedestals may be disposed forward of the radiator support housing. A first rail may be mounted to the radiator support housing and the first pedestal, and a second rail may be mounted to the radiator support housing and the second pedestal. The internal support structure and the exterior frame wall may define fuel cell cavities for the fuel cell, and a component cavity from components of the electrical power system of the work machine.

A storage assembly for switches couplable to batteries of an electric machine to energize the batteries. The storage assembly includes a container defining a cavity to store the switches, a lid movable between a closed state and an open state with respect to the container to respectively close and open the cavity, and a lock out tag out (LOTO) device. The container is configured to be grasped between a pair of arms of a handrail that swings with respect to a walkway platform of a power compartment of the electric machine. The LOTO device is interchangeable with the switches to selectively be received in the cavity in place of the switches when the switches are coupled to the batteries, and be coupled to the batteries in place of the switches to lock out and keep the batteries from energizing when the switches are received in the cavity.

In a hydraulic shovel including a crawler-type lower travelingbody and a storage box provided at the front side of the right side of an upper rotating body, the upper face of the crawler has a stable space that can be used as a scaffold for a worker or as a temporary storage space such as a supply tank. The storage box has, at the front side of the right side, a notch that is obliquely cut from the upper side of the inner end in the left-and-right direction of the crawler to the rear side of the left and right outer sides. The notch has, at the lower side thereof, the upper face of the crawler that provides a space S usable as a scaffold for a worker or as a temporary storage space.

A working machine includes a machine body, a traveling device travelably supporting the machine body, a hydraulic driving device to hydraulically drive the traveling device, a floor frame supported on the machine body via a mounting member, a pedal operable to brake the traveling device, the inching valve to change a flow rate of hydraulic fluid supplied to the hydraulic driving device according to operation of the pedal, and a cable operably connecting the pedal to the inching valve. The pedal and the inching valve are attached to the floor frame.

A ladder motor pump system comprises a hydraulic fluid tank that holds hydraulic fluid, a hydraulic pump that draws and pressurizes the hydraulic fluid from the hydraulic fluid tank, a one-way electric motor that drives the hydraulic pump, a hydraulic ladder actuator that actuates a ladder in first and second patterns, a hydraulic fluid circuit that routes the hydraulic fluid from the hydraulic ladder actuator to the hydraulic fluid tank, and a regulator that routes the pressurized hydraulic fluid from an outlet of the hydraulic pump to the hydraulic fluid tank when a pressure of the pressurized hydraulic fluid exceeds a preselected threshold pressure, mixing the pressurized hydraulic fluid with the unpressurized hydraulic fluid in the hydraulic fluid tank and reducing temperature of the pressurized hydraulic fluid. The electric motor and the pump include bosses providing increased ground connections to the electrical ground, thereby reducing electrical resistance and heat generated.

An electric loader is provided with a plurality of independently driven wheels. For example, a four-wheeled electric loader includes four independently operated wheels, each directly coupled to a dedicated electric motor. A fifth independent electrical motor powers the lift arm and/or any attachments coupled to an auxiliary hydraulic. A central forced-air system supplies pressurized air to each independent electric motor to cool the electric motor during operation. In some embodiments, the auxiliary electric motor powers the fan and/or air conditioner of the central forced-air system. A lever and/or electric brake may be applied to an axle of the electric motors. In some embodiments, a rotating or pivotable battery panel locks a plurality of battery cells to provide a central source of power, counter-weight the loader arm, and rotate away to provide the operator access to an internal cavity of the cab.

A storage assembly for switches couplable to batteries of an electric machine to energize the batteries. The storage assembly includes a container defining a cavity to store the switches, a lid movable between a closed state and an open state with respect to the container to respectively close and open the cavity, and a lock out tag out (LOTO) device. The container is configured to be grasped between a pair of arms of a handrail that swings with respect to a walkway platform of a power compartment of the electric machine. The LOTO device is interchangeable with the switches to selectively be received in the cavity in place of the switches when the switches are coupled to the batteries, and be coupled to the batteries in place of the switches to lock out and keep the batteries from energizing when the switches are received in the cavity.

Two oil coolers (30, 32) are disposed so as to face each other in a front half of the inside of a heat exchanger chamber (26) defined in an upper revolving body (5), one oil cooler (31) is disposed in a rear half, and a space (E) formed between the oil coolers is used as work and passage spaces. Outside air as cooling air is allowed to pass through the respective oil coolers (30 to 32) by cooling fans (35), and cooling air that has passed through each of the two oil coolers (30, 32) disposed so as to face each other is made to mutually collide, and is discharged to the outside through a side outlet (38) of a front wall (26a) and a first upper outlet (39) of a ceiling (26e) of the heat exchanger chamber (26). Cooling air that has passed through the other one oil cooler (31) is made to collide with a left side wall (26c), and is discharged to the outside through a second upper outlet (40) of the ceiling (26e).