Abstract: A display device for a construction machine has a display switching means, output control means, operation detecting means, and display prohibiting means. The display switching means switches information displayed on a monitor placed in an operation cabin, where the switching is made to prevent display of unnecessary information on the monitor while the construction machine is performing work. The output control means selects display information recorded in information recording means and outputs the selected information to the monitor. The operation detecting means detects whether or not the construction machine is in a working state. When the operation detecting means detects that the construction machine is in the working state, display switching operation of the monitor is performed by the display switching means, and the display prohibiting means prohibits the display of specific information.

Abstract: A display device for a construction machine has a display switching means, output control means, operation detecting means, and display prohibiting means. The display switching means switches information displayed on a monitor placed in an operation cabin, where the switching is made to prevent display of unnecessary information on the monitor while the construction machine is performing work. The output control means selects display information recorded in information recording means and outputs the selected information to the monitor. The operation detecting means detects whether or not the construction machine is in a working state. When the operation detecting means detects that the construction machine is in the working state, display switching operation of the monitor is performed by the display switching means, and the display prohibiting means prohibits the display of specific information.

Abstract: A cabin (10) of construction machinery disposed on an upper structure (2) having a front working machine installed thereon, comprising a first side structural body (11) having an openable door (20) provided thereon, a second side structural body (10) disposed at a position adjacent to the front working machine (7), a front part (13) provided between both side structural bodies (11) and (12) and having a front window (23) generally on the entire surface thereof, a roof part (15), and a rear surface part (14), wherein a lateral rail (26) is provided at the upper position of the front window (23) and a reinforcing member (30) for reinforcing the lateral rail (23) is installed across the first and secon side structural bodies (11) and (12).

Abstract: Front mount bases (14, 15) which are located at four corner portions under a cab (11) are constituted by base plates (14A, 15A) and fitting joint projections (14B, 15B), and rear mount bases (16, 17) are constituted by base plates (16A, 17A) and fitting joint projections (16B, 17B). On the other hand, front pillars (22, 23) to be erected on the front mount bases (14, 15) are provided with notched portions (22B, 23B) for fitting engagement with the fitting joint projections (14B, 15B), respectively. Rear pillars (24, 25) to be erected on the rear mount bases (16, 17) are provided with notched portions (24A, 25A) for fitting engagement with the fitting joint projections (16B, 17B). Accordingly, a weld can be formed along and between marginal edge portions around the fitting joint projections (14B, 15B, 16B, 17B) and notched portion (22B, 23B, 24A, 25A) in such a way as to increase the welding distance and to increase the strength of the welded joint portions.

Abstract: A cab for construction machines includes left and right rear pillars constituted by steel pipes of a diversified shape, with inclined intermediate pillar portions between upright lower pillar portions and upper pillar portions whereby positions of the lower and upper pillar portions are shifted in the forward and rearward directions, respectively. Lower portions of the rear pillars are receded in the forward direction to provide a recessed space, while upper portions of the rear pillars are projected out in the rearward direction to provide a rear expansion space. Accordingly, for the purpose of downsizing the upper structure (2), front portions of equipment, including an engine, can be accommodated in the recessed space and the rear expansion space contributes to broaden a space within the cab.

Abstract: Front mount bases (14, 15) which are located at four corner portions under a cab (11) are constituted by base plates (14A, 15A) and fitting joint projections (14B, 15B), and rear mount bases (16, 17) are constituted by base plates (16A, 17A) and fitting joint projections (16B, 17B). On the other hand, front pillars (22, 23) to be erected on the front mount bases (14, 15) are provided with notched portions (22B, 23B) for fitting engagement with the fitting joint projections (14B, 15B), respectively. Rear pillars (24, 25) to be erected on the rear mount bases (16, 17) are provided with notched portions (24A, 25A) for fitting engagement with the fitting joint projections (16B, 17B). Accordingly, a weld can be formed along and between marginal edge portions around the fitting joint projections (14B, 15B, 16B, 17B) and notched portion (22B, 23B, 24A, 25A) in such a way as to increase the welding distance and to increase the strength of the welded joint portions.

Abstract: Left and right rear pillars (34, 35) are constituted by steel pipes of a diversified shape, with inclined intermediate pillar portions (34B, 35B) between upright lower pillar portions (34A, 35A) and upper pillar portions (34C, 35C) to have positions of the lower and upper pillar portions shifted in the forward and rearward directions, respectively. Lower portions of the rear pillars (34, 35) are receded in the forward direction to provide a recessed space (59), while upper portions of the rear pillars (34, 35) are projected out in the rearward direction to provide a rear expansion space (60). Accordingly, for the purpose of downsizing the upper structure (2), front portions of equipments including an engine (6) can be accommodated in the recessed space (59). On the other hand, the rear expansion space (60) contributes to broaden a dwelling room within the cab (21) and to improve its amenity.

Abstract: A cab 10 is provided on an upper rotary body 2 of a construction machine along with a front working mechanism 7. The cab 10 provides an operating room within an enclosure which mainly consists a first side frame structure 11 containing a door to be opened and closed by an operator, a second side frame structure 12 located on the side of the front working mechanism 7, a front section 13 provided between front ends of the first and second side frame structures 11 and 12 and substantially entirely occupied by a front window 23, a roof section 15 and a rear section 14. In addition to a cross beam member 26 which is bridged between upper front corner portions of the first and second side frame structures 11 and 12, a reinforcing the cross beam member 26 is bridged alongside the cross beam member 26 for reinforcing same.

Abstract: A cab for a construction machine includes an operator's seat within a cab box. Consoles are provided on the left and right sides of the operator's seat, respectively, and a switch box is provided on an outer side of an operating lever of the right console. Provided on the switch box are a control dial for variably controlling rotational speed of an engine, a working mode selector switch, and a vehicle drive mode selector switch. An operator who is seated on the operator's seat can manipulate the switches on the switch box by stretching a right arm toward the operating lever and by blind touch.

Abstract: An operator's cab in a construction machine in which hollow pillar portions are formed each with an outer panel and an inner panel bonded to each other and the hollow pillar portions constitute an operator's cab frame, includes at least one reinforcement member constituted of thin plate that is bonded to the outer panel and/or the inner panel to divide an internal space of each of the hollow pillar portions.

Abstract: An operator's cab in a construction machine in which hollow pillar portions are formed each with an outer panel and an inner panel bonded to each other and the hollow pillar portions constitute an operator's cab frame, includes at least one reinforcement member constituted of thin plate that is bonded to the outer panel and/or the inner panel to divide an internal space of each of the hollow pillar portions.

Abstract: An operator's cab in a construction machine in which hollow pillar portions are formed each with an outer panel and an inner panel bonded to each other and the hollow pillar portions constitute an operator's cab frame, includes at least one reinforcement member constituted of thin plate that is bonded to the outer panel and/or the inner panel to divide an internal space of each of the hollow pillar portions.

Abstract: An operator's cab in a construction machine, which has pillars standing at a left side surface and a right side surface, includes a frame reinforcement member that extends between the pillars and meets at a near right angle to the pillars so as to create a resistance against a bending load applied to the pillars.

Abstract: For a vertical slide type front window of an operator's cab of construction machines, a windshield wiper assembly is mounted on a panel alongside the front window. Mounted on the part of the front window is a pin-latch unit for fixing the front window in a fully closed position. When a slide pin of the pin-latch unit is applied to lock the front window, this is detected by a detection means of a windshield control to render the wiper operative.

Abstract: An air conditioner duct being suitable for connection with an air conditioner arranged in a cab. The air conditioner duct is provided with an air outlet member, which includes an air release portion for releasing air into the cab and plural fins for guiding air to the air release portion. The air outlet member comprises a turnable air outlet member shaped to enclose a duct portion, to which the turnable air outlet member is connected, and is turnable relative to the duct portion.