An oil path (9) as a lubricating oil collecting and guiding device is provided with a long gutter-shaped main unit (9A), a press-in pin part (21) pushed into a press-in hole (22) formed on an open side end face (4a) of a transmission case (4), and an insertion pin part (24) inserted into an insertion hole (25) formed on a bottom part side of the transmission case (4). By this, the operation of installation on the bottom part side of the transmission case (4) during installation of the oil path (9) on the transmission case (4) includes only inserting the insertion pin part (24) into the insertion hole (25) of the transmission case (25), the operator therefore no longer needs to insert a hand deeply inside the transmission case (4) for the operation, and the operability of installation of the oil path (9) on the transmission case is improved.