Abstract: A muffling chamber is located between a first main body wall and a second main body wall with respect to a height direction. An outflow pipe includes: a first opening that connects an outflow passage with a muffling chamber in the vicinity of a first main body wall; and a second opening that connects the outflow passage with the muffling chamber in the vicinity of a second main body wall. The liquid staying on the first main body wall of a first muffler flows into the outflow passage through the first opening. The liquid staying on a second main body wall of a second muffler flows into the outflow passage through a second opening. Therefore, the symmetry of the first muffler and the second muffler is compatible with anti-corrosion.

Abstract: A muffling chamber (5) is located between a first main body wall (42A) and a second main body wall (42B) with respect to a height direction (AE). An outflow pipe (8) has: a first opening (8A) that connects an outflow passage (8R) with a muffling chamber (5) in the vicinity of a first main body wall (42A); and a second opening (8C) that connects the outflow passage (8R) with the muffling chamber (5) in the vicinity of a second main body wall (42B). The liquid staying on the first main body wall (42A) of a first muffler (4A) flows into the outflow passage (8R) through the first opening (8A). The liquid staying on a second main body wall (42B) of a second muffler (4B) flows into the outflow passage (8R) through a second opening (8C). Therefore, the symmetry of the first muffler (4A) and the second muffler (4B) is compatible with anti-corrosion.

Abstract: There is provided a pump unit including a plurality of hydraulic pump bodies disposed in parallel to each other, a plurality of pump shafts respectively supporting the plurality of hydraulic pump bodies in a relatively non-rotatable manner and a pump housing accommodating the plurality of pump bodies and supporting the plurality of pump shafts in a rotatable manner around respective axis lines, wherein each of the plurality of pump shafts has at least one end extending outward from the pump housing so as to form an input end.

Abstract: There is provided a PTO transmission structure including a PTO driving shaft operatively connected to a driving source, a PTO driven shaft arranged in a downstream side in a transmission direction of the PTO driving shaft, a PTO clutch unit for selectively performing power transmission/power interruption from the PTO driving shaft to the PTO driven shaft, and a transmission case for supporting the PTO driving shaft and the PTO driven shaft and for accommodating the PTO clutch unit. The transmission case has a case main body which includes a first wall having a first hole for supporting the PTO driving shaft, and a second wall having a second hole for supporting the PTO driven shaft, the second wall being spaced apart from the first wall so as to define a first accommodating space to position the PTO clutch unit between the first wall and the second wall.

Abstract: There is provided a pump system including; a base unit which has an input portion operatively connected to a driving source on a first end face and has a plurality of output portions capable of outputting a power transmitted from the input portion on a second end face at the opposite side of the first end face, the first end face capable of being directly or indirectly mounted on a support member; a pump unit which has a plurality of pump shafts driven by each of the plurality of output portions, a plurality of hydraulic pump bodies driven by each of the plurality of pump shafts, and a pump case surrounding the plurality of hydraulic pump bodies, the pump case being detachably connected to the second end face of the base unit; and a PTO unit which has a PTO shaft driven by the power transmitted from the input portion and is accommodated in the base unit.

Abstract: There is provided a pump unit including a plurality of hydraulic pump bodies disposed in parallel to each other, a plurality of pump shafts respectively supporting the plurality of hydraulic pump bodies in a relatively non-rotatable manner and a pump housing accommodating the plurality of pump bodies and supporting the plurality of pump shafts in a rotatable manner around respective axis lines, wherein each of the plurality of pump shafts has at least one end extending outward from the pump housing so as to form an input end.

Abstract: There is provided a pump unit including a housing, a first and a second pump shafts, a first and a second hydraulic pump main bodies, a first and a second trunnion type movable swash pates, and a first and a second transmission gears. The housing has an inlet port for introducing oil from the outside into its pump accommodating chamber, an oil passage for communicating between the pump accommodating chamber and its gear accommodating chamber, and a discharge port for taking out oil from the gear accommodating chamber to the outside. The pump accommodating chamber includes a supporting wall that supports each base end of the swash plates so that each operational end of the swash plates is directed to the opposite directions to each other. The inlet port and the oil passage are respectively provided at one side and the other side of the pump accommodating chamber with the supporting wall as a reference.

Abstract: There is provided a pump unit including a housing, a first and a second pump shafts, a first and a second hydraulic pump main bodies, a first and a second trunnion type movable swash pates, and a first and a second transmission gears. The housing has an inlet port for introducing oil from the outside into its pump accommodating chamber, an oil passage for communicating between the pump accommodating chamber and its gear accommodating chamber, and a discharge port for taking out oil from the gear accommodating chamber to the outside. The pump accommodating chamber includes a supporting wall that supports each base end of the swash plates so that each operational end of the swash plates is directed to the opposite directions to each other. The inlet port and the oil passage are respectively provided at one side and the other side of the pump accommodating chamber with the supporting wall as a reference.

Abstract: There is provided a pump system including; a base unit which has an input portion operatively connected to a driving source on a first end face and has a plurality of output portions capable of outputting a power transmitted from the input portion on a second end face at the opposite side of the first end face, the first end face capable of being directly or indirectly mounted on a support member; a pump unit which has a plurality of pump shafts driven by each of the plurality of output portions, a plurality of hydraulic pump bodies driven by each of the plurality of pump shafts, and a pump case surrounding the plurality of hydraulic pump bodies, the pump case being detachably connected to the second end face of the base unit; and a PTO unit which has a PTO shaft driven by the power transmitted from the input portion and is accommodated in the base unit.

Abstract: There is provided a PTO transmission structure including a PTO driving shaft operatively connected to a driving source, a PTO driven shaft arranged in a downstream side in a transmission direction of the PTO driving shaft, a PTO clutch unit for selectively performing power transmission/power interruption from the PTO driving shaft to the PTO driven shaft, and a transmission case for supporting the PTO driving shaft and the PTO driven shaft and for accommodating the PTO clutch unit. The transmission case has a case main body which includes a first wall having a first hole for supporting the PTO driving shaft, and a second wall having a second hole for supporting the PTO driven shaft, the second wall being spaced apart from the first wall so as to define a first accommodating space to position the PTO clutch unit between the first wall and the second wall.

Abstract: A joint structure for coupling adjacent precast concrete pavement slabs which is excellent in execution process for pavement, particularly is capable of ensuring the sliding of a reinforcing bar. A first horizontal hole for accommodating a reinforcing bar thereinto is provided at an end surface of the first precast concrete pavement slab. A second horizontal hole for inserting a distal end of the reinforcing bar is provided at an end surface of a second precast concrete pavement slab. Both horizontal holes have the same diameters, opposite in position to each other. A guide passage is defined through the second precast concrete pavement slab for its upper surface to communicate with its inner end surface. A hauling member is connected to a distal end of the reinforcing bar so that it may be inserted into the guide passage.