Abstract: A cleaning tool that includes a cleaning element. The cleaning element includes two insert holes which receive two holding elements and extend in a first direction, a first sheet and a second sheet which are formed of nonwoven fabric, a first inner bonding part and a first outer bonding part by which the first and second sheets overlaid one on the other are bonded together and which define the first insert hole, a second inner bonding part and a second outer bonding part by which the first and second sheets overlaid one on the other are bonded together and which define the second insert hole, an intermediate region which is formed between the first inner bonding part and the second inner bonding part, and a fiber element formed by a plurality of fibers which extend in a second direction transverse to the first direction and are bonded to the first sheet in the intermediate region.

Abstract: To provide an apparatus for reclaiming foundry sand and a method for reclaiming foundry sand that can effectively remove binders and so on that attach to returned foundry sand that has been used. Foundry sand that has been used is supplied from a chute for feeding sand 14A to a rotor 16. The rotor 16 is rotated by a driver 20 so that frictional force is generated on the sand in the rotor 16. Then, the sand in the rotor 16 is dropped into the container for washing with water 30 that is located below the rotor 16. In the container for washing with water 30, an agitator 34 is rotated by the driver 20 so that the sand in the container for washing with water 30 is agitated and washed with water.

Abstract: A cleaning sheet and a cleaning tool which have improved usability. The cleaning sheet is attachable to a cleaning-sheet mounting member. The cleaning sheet has a center section made up of a cleaning surface and at least one end section disposed at one or more sides with respect to the center section in a predetermined direction. The end section has a first portion having a first elongation percentage and a second portion having a second elongation percentage which is higher than that of the first portion. The second portion is disposed in said direction between the first portion and the center section and is constructed so as to be supported by the cleaning-sheet mounting member at the boundary between the first and second portions. The cleaning tool is provided with the cleaning sheet.

Abstract: A cleaning sheet that is attachable to a cleaning sheet-attaching component and is characterized in having a central part configuring a cleaning surface and at least one end provided on at least one side of the central part in a prescribed direction. The at least one end has a first part with a first elongation percentage and a second part with a higher elongation percentage than the first part. The second part is provided between the first part and the central part in the prescribed direction, and the sheet is configured so as to be detachably held on the cleaning sheet-attaching component at the boundary between the first part and the second part. Also configured is a cleaning implement provided with said cleaning sheet.

Abstract: With respect to a cleaning tool having a sheetlike cleaning member for mopping a surface to be cleaned, it is intended to provide a technology effective for enhancing of cleaning effect. There is provided cleaning tool (10) comprising cleaning sheet (100) for mopping a surface to be cleaned and injection nozzle (252) for jetting a cleaning liquid toward the surface to be cleaned at its region under the cleaning sheet (100).

Abstract: Cleaning sheets and cleaning tools that provide a wide cleaning area in a wetted state. A representative cleaning sheet includes a hydrophilic inner layer sheet and hydrophobic outer layer sheets. The inner layer sheet is disposed between the outer layer sheets and impregnated with cleaning solution. Fusion bonded layers are formed on inner sides (sides facing the inner layer sheet) of the outer layer sheets.

Abstract: By mixing, stirring and kneading, with water glass (11) as a binder, sand (7), a surfactant (9), and water (10), foamed sand (S) is generated. The foamed sand (S) is packed in a cavity of a metallic mold and solidified to form a sand mold. By using the sand mold, aluminum is cast. By using water glass that is an inorganic binder, during casting, harmful gas and odor are not generated. Further, when a molar ratio n of water glass (Na20 nSiO2 mH2O) is adjusted in the range of 0.65 to 1.30, a quantity of water (H2O) generated by heating water glass with a high temperature melt during casting can be suppressed. Thereby, hydrogen gas (H2) according to a reaction between water (H2O) and aluminum (Al) can be suppressed from being generated and casting quality can be improved.

Abstract: In a wet sheet, hydrophobic outer layer sheets are disposed on both sides of the hydrophilic inner layer sheet impregnated with cleaning solution. Each of intermediate layer sheets is folded over so as to form a space having an opening. End portions of the inner layer sheet are inserted into the spaces of the intermediate layer sheets. The inner layer sheet can come in contact with the outer layer sheet via a space between the intermediate layer sheets. With such a construction, sufficiently high frictional force acts between the inner layer sheet and the outer layer sheet.

Abstract: A cleaning sheet that is attachable to a cleaning sheet-attaching component and is characterized in having a central part configuring a cleaning surface and at least one end provided on at least one side of the central part in a prescribed direction. The at least one end has a first part with a first elongation percentage and a second part with a higher elongation percentage than the first part. The second part is provided between the first part and the central part in the prescribed direction, and the sheet is configured so as to be detachably held on the cleaning sheet-attaching component at the boundary between the first part and the second part. Also configured is a cleaning implement provided with said cleaning sheet.

Abstract: A cleaning tool that includes a cleaning element. The cleaning element includes two insert holes which receive two holding elements and extend in a first direction, a first sheet and a second sheet which are formed of nonwoven fabric, a first inner bonding part and a first outer bonding part by which the first and second sheets overlaid one on the other are bonded together and which define the first insert hole, a second inner bonding part and a second outer bonding part by which the first and second sheets overlaid one on the other are bonded together and which define the second insert hole, an intermediate region which is formed between the first inner bonding part and the second inner bonding part, and a fiber element formed by a plurality of fibers which extend in a second direction transverse to the first direction and are bonded to the first sheet in the intermediate region.

Abstract: A cleaning sheet and a cleaning tool which have improved usability. The cleaning sheet is attachable to a cleaning-sheet mounting member. The cleaning sheet has a center section made up of a cleaning surface and at least one end section disposed at one or more sides with respect to the center section in a predetermined direction. The end section has a first portion having a first elongation percentage and a second portion having a second elongation percentage which is higher than that of the first portion. The second portion is disposed in said direction between the first portion and the center section and is constructed so as to be supported by the cleaning-sheet mounting member at the boundary between the first and second portions. The cleaning tool is provided with the cleaning sheet.

Abstract: Cleaning sheets and cleaning tools that provide a wide cleaning area in a wetted state. A representative cleaning sheet includes a hydrophilic inner layer sheet and hydrophobic outer layer sheets. The inner layer sheet is disposed between the outer layer sheets and impregnated with cleaning solution. Fusion bonded layers are formed on inner sides (sides facing the inner layer sheet) of the outer layer sheets.

Abstract: It is an object of the invention to provide a hand-held mop in which a grip connected to a mounting part for mounting and supporting a mop body is prevented from being detached from the mounting part during cleaning operation. A hand-held mop 1 includes a mop body 2, a mounting part 10, and a grip 20. The mop body 2 has a pair of mop body portions 2a, and the mounting part 10 has a pair of mounting pieces 11 which are inserted into mounting spaces of the mop body portions 2a, and an insert 15. The grip 20 has a holding side 22 which defines an insert space 22a into which the insert 15 of the mounting part 10 is inserted. Further, a side opening 23 is formed in the holding side 22 of the grip 20, and a side projection 19 is formed on the insert 15 of the mounting part 10 and engaged in the side opening 23.

Abstract: With time intervals and transmission times of packets of real time streams, transmission end times thereof are calculated. The transmission order of packets of the real time streams is decided in the order of the earlier transmission end times thereof. Transmission end times of packets of a non-real time stream are compared with the scheduling times of packets of the plurality of real time streams. When the transmission end times of packets of the non-real time stream are earlier than any one of the scheduling times of packets of the plurality of real time streams, the packets of the non-real time streams are transmitted.

Abstract: Disclosed is a pipe handle including first and second pipes which are engaged together with a male coupling of the second pipe fitted into a female coupling of the first pipe. The first pipe has a larger inside diameter in the female coupling than in a main body adjacent to the female coupling. The second pipe has a continuous outer surface without any step between the male coupling and a main body adjacent to the male coupling. The main body of the first pipe and the main body of the second pipe has an equal or almost equal outside diameter.

Abstract: A cleaning implement includes a cleaning head having on a bottom a cleaning operation surface, a holding portion arranged on the side opposite the cleaning head, a pipe for coupling the cleaning head and the holding portion, and a valve opening and closing device provided to the pipe so as to be able to hold a first container for receiving a first fluid or a second container for receiving a second fluid. The holding portion includes a lever coupled to the valve opening and closing device so as to open and close a first valve of the first container or a second valve of the second container. A spout of a second ejection nozzle for ejecting the second fluid containing an allergen inactivator is located, for example, at a height of about 30 cm or more from the floor.

Abstract: A cleaning implement includes a cleaning head having on the bottom a cleaning operation surface and a valve opening and closing device that is connected to the cleaning head and can hold a first container for receiving a first fluid or a second container for receiving a second fluid. The cleaning implement further includes a first circulation path through which the first fluid is ejectable from the cleaning head and a second circulation path through which the second fluid is ejectable by interrupting the first circulation path.

Abstract: A cleaning implement includes a cleaning head having a cleaning operation surface on a bottom, a holding portion arranged on the side opposite the cleaning head, a pipe for coupling the cleaning head and the holding portion, and a valve opening and closing device provided to the pipe so as to be able to hold a first container for receiving a first fluid or a second container for receiving a second fluid. The holding portion includes a lever coupled to the valve opening and closing device so as to open and close a first valve of the first container or a second valve of the second container. A first ejection nozzle can eject the first fluid forward of the cleaning head, and a second ejection nozzle can eject the second fluid rearward of the cleaning head.

Abstract: Disclosed is a cleaning device with a squirter for squirting liquid forward of a cleaning head. The cleaning head has a nozzle head with a nozzle. A liquid receiving part is provided to extend from beneath an orifice of the nozzle toward a front face of the cleaning head. Liquid dripping from the orifice of the nozzle can be led down an inclined top face of the liquid receiving part to the outside of the cleaning head, preventing the cleaning head from being soiled with a detergent, a wax or the like.

Abstract: With respect to a cleaning tool having a sheetlike cleaning member for mopping a surface to be cleaned, it is intended to provide a technology effective for enhancing of cleaning effect. There is provided cleaning tool (10) comprising cleaning sheet (100) for mopping a surface to be cleaned and injection nozzle (252) for jetting a cleaning liquid toward the surface to be cleaned at its region under the cleaning sheet (100).