Abstract: In a hydraulic excavator, in a rear part of an upper rotating body mounted on a lower traveling body is disposed an engine room, and in a front surface of a partition wall for partitioning the front surface side of the engine room from the exterior is provided a step serving as a foothold for opening and closing a bonnet and performing maintenance work. On the lower side of the step, a duct for exhausting the air within the engine room to the exterior is formed in a state that the step serves as an upper surface wall of the duct.

Abstract: On the premise that a partition wall for defining an engine room is provided on the left side of a rear portion of an upper frame the partition wall constituting an upper rotating body and that an engine and a cooler are disposed in the engine room, a front support frame which supports a front portion of the cooler is connected to a rear surface of the partition wall in a state of surface abutment against the rear surface, whereby the support frame also serves as a support pillar for the partition wall, the partition wall also serves as a stay for the prevention of transverse vibration of the support frame, and the use of a sealing member for filling up a gap between the partition wall and the support frame can be omitted.

Abstract: On the front surface side of a cooler, a filter mounting portion provided with a filter abutment surface with which a filter is brought into abutment from the front side of the filter mounting portion is provided. The front end side of the filter pushed in from a maintenance port is pressed onto an elastic body formed of a plate spring and provided in the filter mounting portion. Thereby, by a pressing force F1 serving as a component force of a restoring force F of the elastic body, the filter is pressed onto the filter abutment surface, and by a position fixing force F2, the filter is pushed rearwards so as to ensure an engagement state of an engaging claw and an engaging hole.

Abstract: A thermosetting resin composition capable of providing a molding, such as a resin sheet, that excels in not only dielectric characteristics but also dimensional stability at high temperature and even after exposure to high temperature thermal history, exhibits little dimensional change by the thermal history, namely, exhibiting low linear expansion coefficient. There are further provided a resin sheet and resin sheet for insulated substrate produced from the thermosetting resin composition. In particular, there is provided a thermosetting resin composition comprising an epoxy resin of 100 to 2000 epoxy equivalent, an epoxy resin hardening agent consisting of a phenolated compound, and a layered silicate, and are further provided a resin sheet comprised of the thermosetting resin composition and a resin sheet for insulated substrate comprised of the resin sheet.

Abstract: An upper surface part of an engine guard forming an engine room is formed by a bonnet for opening and closing a maintenance port and a fixed hood. On the lower surface side of the bonnet is disposed a movable duct in a state that when the bonnet is opened the movable duct is moved integrally with the bonnet so as to open the maintenance port. On the lower surface side of the fixed hood, is disposed a fixed duct in a state that when the bonnet is closed one end of the fixed duct is connected to one end of the movable duct in the air flow direction. An exhaust duct is formed by both the movable duct and the fixed duct.

Abstract: A resin composition, substrate material, sheet, laminated board, resin-bearing copper foil, copper-clad laminate, TAB tape, printed board, prepreg and adhesive sheet are provided which exhibit improved mechanical properties, dimensional stability, heat resistance and flame retardance, particularly high-temperature physical properties. The resin composition containing 100 parts by weight of a thermosetting resin and 0.1-65 parts by weight of a layered silicate inorganic compound, the resin composition having a mean linear expansion coefficient (?2) of up to 17×10?3 [° C.?1 ] over the temperature range from a temperature 10° C. higher than a glass transition temperature of the resin composition to a temperature 50° C. higher than the glass transition temperature of the resin composition.

Abstract: Disclosed is a thermosetting resin composition which enables to obtain a molded article that is excellent in mechanical properties, dimensional stability and heat resistance and is further capable of maintaining the shape of the article molded before curing even after the resin composition is cured. The thermosetting resin composition contains 100 parts by weight of a thermosetting resin and 1-100 parts by weight of an inorganic compound dispersed in the thermosetting resin, and the dispersion particle diameter of the inorganic compound is not more than 2 ?m. Not less than 75% of the shape of an article molded before curing is maintained after the resin composition is cured. Also disclosed are a material for substrates and a film for substrates respectively composed by using such a thermosetting resin composition.

Abstract: Disclosed is a thermoplastic cresin composition which enables to obtain a molded article that is capable of maintaining the molded shape even when the article is heated after molding and is excellent in dimensional stability and heat resistence. The thermoplastic resin composition contains 100 parts by weight of a thermoplastic resin and 0.1-100 parts by weight of an inorganic compound dispersed in the thermoplastic resin. Not less than 75% of the molded shape of an article can be maintained even after the article is heated to a temperature not less than the glass transition temperature or melting point of the thermoplastic resin. Also disclosed are a material and a film for substrates composed by using such a thermoplastic resin composition.

Abstract: It is an object of the invention to provide a material for -insulating substrate, a printed board, a laminate, copper foil with resin, a copper-clad laminate, a polyimide film, a film for TAB and a prepreg, which are excellent in physical properties, dimensional stability, heat resistance, flame retardancy etc. and exhibit an excellent flame retardant effect particularly by a shape retention effect at the time of combustion The invention provides a material for insulating substrate, comprising 100 parts by weight of a thermoplastic resin or a mixture of a thermoplastic resin and a thermosetting resin and 0.1 to 100 parts by weight of a layered silicate.

Abstract: It is an object of the invention to provide a material for insulating substrate, a printed board, a laminate, copper foil with resin, a copper-clad laminate, a polyimide film, a film for TAB and a prepreg, which are excellent in physical properties, dimensional stability, heat resistance, flame retardancy etc. and exhibit an excellent flame retardant effect particularly by a shape retention effect at the time of combustion The invention provides a material for insulating substrate, comprising 100 parts by weight of a thermoplastic resin or a mixture of a thermoplastic resin and a thermosetting resin and 0.1 to 100 parts by weight of a layered silicate.

Abstract: A thermosetting resin composition capable of providing a molding, such as a resin sheet, that excels in not only dielectric characteristics but also dimensional stability at high temperature and even after exposure to high temperature thermal history, exhibits little dimensional change by the thermal history, namely, exhibiting low linear expansion coefficient. There are further provided a resin sheet and resin sheet for insulated substrate produced from the thermosetting resin composition. In particular, there is provided a thermosetting resin composition comprising an epoxy resin of 100 to 2000 epoxy equivalent, an epoxy resin hardening agent consisting of a phenolated compound, and a layered silicate, and are further provided a resin sheet comprised of the thermosetting resin composition and a resin sheet for insulated substrate comprised of the resin sheet.

Abstract: On the front surface side of a cooler, a filter mounting portion provided with a filter abutment surface with which a filter is brought into abutment from the front side of the filter mounting portion is provided. The front end side of the filter pushed in from a maintenance port is pressed onto an elastic body formed of a plate spring and provided in the filter mounting portion. Thereby, by a pressing force F1 serving as a component force of a restoring force F of the elastic body, the filter is pressed onto the filter abutment surface, and by a position fixing force F2, the filter is pushed rearwards so as to ensure an engagement state of an engaging claw and an engaging hole.

Abstract: An upper surface part of an engine guard forming an engine room is formed by a bonnet for opening and closing a maintenance port and a fixed hood. On the lower surface side of the bonnet is disposed a movable duct in a state that when the bonnet is opened the movable duct is moved integrally with the bonnet so as to open the maintenance port. On the lower surface side of the fixed hood, is disposed a fixed duct in a state that when the bonnet is closed one end of the fixed duct is connected to one end of the movable duct in the air flow direction. An exhaust duct is formed by both the movable duct and the fixed duct.

Abstract: In a hydraulic excavator, in a rear part of an upper rotating body mounted on a lower traveling body is disposed an engine room, and in a front surface of a partition wall for partitioning the front surface side of the engine room from the exterior is provided a step serving as a foothold for opening and closing a bonnet and performing maintenance work. On the lower side of the step, a duct for exhausting the air within the engine room to the exterior is formed in a state that the step serves as an upper surface wall of the duct.

Abstract: A guard member for covering devices which is provided in an upper rotating body is provided with left and right maintenance holes for maintenance of the devices from two positions on the left side and the right side, and left and right maintenance panels for rotating taking the rear side as a support point so as to open and close the maintenance holes. In this case, panel main bodies of the both panels are formed vertically symmetrically with the same shape and the same size as each other corresponding to the maintenance holes. The both panels are attached to the guard member in a vertically reversed state to each other and in a state that the hinge members are located on the rear side.

Abstract: On the premise that a partition wall for defining an engine room is provided on the left side of a rear portion of an upper frame the partition wall constituting an upper rotating body and that an engine and a cooler are disposed in the engine room, a front support frame which supports a front portion of the cooler is connected to a rear surface of the partition wall in a state of surface abutment against the rear surface, whereby the support frame also serves as a support pillar for the partition wall, the partition wall also serves as a stay for the prevention of transverse vibration of the support frame, and the use of a sealing member for filling up a gap between the partition wall and the support frame can be omitted.

Abstract: Disclosed is a thermosetting resin composition which enables to obtain a molded article that is excellent in mechanical properties, dimensional stability and heat resistance and is further capable of maintaining the shape of the article molded before curing even after the resin composition is cured. The thermosetting resin composition contains 100 parts by weight of a thermosetting resin and 1-100 parts by weight of an inorganic compound dispersed in the thermosetting resin, and the dispersion particle diameter of the inorganic compound is not more than 2 ?m. Not less than 75% of the shape of an article molded before curing is maintained after the resin composition is cured. Also disclosed are a material for substrates and a film for substrates respectively composed by using such a thermosetting resin composition.