Abstract: A monitoring system includes a sensor, a monitoring camera, a power control apparatus, a master device that is connected to a fixed telephone network so as to perform calls to other fixed telephones, and a mobile phone terminal that is connected to other mobile phones via a mobile phone network. When an abnormality is detected, the sensor, the monitoring camera, or the power control apparatus transmits an abnormality detection signal to the master device. When the abnormality detection signal is received, the master device converts at least a part of the abnormality detection signal so as to generate notification information, and transmits the notification information to the mobile phone terminal. The mobile phone terminal displays a warning screen based on the notification information on the display unit.

Abstract: A work machine includes a machine body, the machine body includes a bottom plate having an air outlet, and an exhaust air duct, the air outlet includes a major opening portion and a wide portion that is disposed with the major opening portion side by side in a left and right direction, the wide portion including a portion located immediately under an engine and having a greater width in a front and rear direction than a width of the major opening portion in the front and rear direction, the exhaust air duct includes a duct base portion including a lower opening that communicates with the air outlet, and an extension portion having an upper opening that is provided at an upper end thereof, and the duct base portion includes a wide-portion covering portion that covers the wide portion at a position immediately under the engine.

Abstract: A boom foot pin is attached to a pair of vertical plates so as to be able to be pulled out along an axial direction of the boom foot pin. A housing box has a box main body with a housing space inside and an opening/closing lid configured to allow an opening region of the box main body to be opened and closed. The box main body is disposed on the right of the right vertical plate in a state where the boom foot pin is placed opposite the housing space with reference to the opening region in a side view in which the upper slewing body is viewed along an axial direction and the box main body is shaped to open the boom foot pin in the axial direction. The opening/closing lid is rotated to a position where the opening region is closed to lie at a position where the opening/closing lid overlaps the boom foot pin in the side view, and is rotated to a position where the opening region is opened to lie at a position where the boom foot pin is opened in the axial direction.

Abstract: A boom foot pin is attached to a pair of vertical plates so as to be able to be pulled out along an axial direction of the boom foot pin. A housing box has a box main body with a housing space inside and an opening/closing lid configured to allow an opening region of the box main body to be opened and closed. The box main body is disposed on the right of the right vertical plate in a state where the boom foot pin is placed opposite the housing space with reference to the opening region in a side view in which the upper slewing body is viewed along an axial direction and the box main body is shaped to open the boom foot pin in the axial direction. The opening/closing lid is rotated to a position where the opening region is closed to lie at a position where the opening/closing lid overlaps the boom foot pin in the side view, and is rotated to a position where the opening region is opened to lie at a position where the boom foot pin is opened in the axial direction.

Abstract: A work machine includes a machine body, the machine body includes a bottom plate having an air outlet, and an exhaust air duct, the air outlet includes a major opening portion and a wide portion that is disposed with the major opening portion side by side in a left and right direction, the wide portion including a portion located immediately under an engine and having a greater width in a front and rear direction than a width of the major opening portion in the front and rear direction, the exhaust air duct includes a duct base portion including a lower opening that communicates with the air outlet, and an extension portion having an upper opening that is provided at an upper end thereof, and the duct base portion includes a wide-portion covering portion that covers the wide portion at a position immediately under the engine.

Abstract: Provided is a construction machine including a guard panel with an air suction port and capable of ensuring a required intake opening area with suppressed disadvantages of the air suction port. The construction machine includes an engine, a cooling fan, and a heat exchanger which are accommodated in a device accommodation space in an upper slewing body, and a guard panel covering the device accommodation space. The guard panel includes a first panel with an opening edge defining an opening and a second panel that opens and closes the opening and has a peripheral portion to be supported by the opening edge with the opening closed. Respective parts of the peripheral portion and the opening edge are shifted from each other in an inward-outward direction to form an air suction port bringing the device accommodation space into communication with outside, between the second panel and the first panel.

Abstract: Provided is a construction machine including a guard panel with an air suction port and capable of ensuring a required intake opening area with suppressed disadvantages of the air suction port. The construction machine includes an engine, a cooling fan, and a heat exchanger which are accommodated in a device accommodation space in an upper slewing body, and a guard panel covering the device accommodation space. The guard panel includes a first panel with an opening edge defining an opening and a second panel that opens and closes the opening and has a peripheral portion to be supported by the opening edge with the opening closed. Respective parts of the peripheral portion and the opening edge are shifted from each other in an inward-outward direction to form an air suction port bringing the device accommodation space into communication with outside, between the second panel and the first panel.

Abstract: Provided is a construction machine which comprises an upper slewing body including: a frame bottom plate formed with an downward opening; an undercover detachably attached to the frame bottom plate to close up the opening; and a connection member for connecting the undercover to the frame bottom plate. The undercover includes a cover-forming member made of a single plate fabricated to have a base portion extending along a lower surface of the frame bottom plate and a bulging portion bulging upwardly from the base portion to be inserted into the opening. The base portion has a contact area in an outer edge region thereof to make contact with the lower surface of the frame bottom plate from the lower side thereof. The connection member connects the bulging portion to a region of the frame bottom plate, the region located above the lower surface of the frame bottom plate.

Abstract: Provided is a construction machine which comprises an upper slewing body including: a frame bottom plate formed with an downward opening; an undercover detachably attached to the frame bottom plate to close up the opening; and a connection member for connecting the undercover to the frame bottom plate. The undercover includes a cover-forming member made of a single plate fabricated to have a base portion extending along a lower surface of the frame bottom plate and a bulging portion bulging upwardly from the base portion to be inserted into the opening. The base portion has a contact area in an outer edge region thereof to make contact with the lower surface of the frame bottom plate from the lower side thereof. The connection member connects the bulging portion to a region of the frame bottom plate, the region located above the lower surface of the frame bottom plate.