Attachment structure for attaching plurality of lane rope floats to rope, lane rope float set, and lane rope float

A lane rope float attached to a rope for dividing a water surface of a pool into lanes, the lane rope float comprising:

• a central attachment portion configured to allow the rope to be inserted into a center of the float,
• an outer wall portion configured for stopping waves transmitted from the water surface of the pool at an outer side wall surface and forming an opening capable of guiding the waves transmitted from the water surface of the pool into a space in the float;
• a plurality of blades configured for connecting the outer wall portion to the central attachment portion, the plurality of blades extending in a direction in which the rope extends so as to divide the space in the float into a plurality of spaces;
• and
• a connecting portion configured for connecting the plurality of blades to each other and comprising a water vent configured for discharging the waves guided into the space in the float via the opening,
• wherein in a case that a volume of an individual space partitioned at least by a pair of adjacent blades, the outer wall portion adjacent to the blades, and the connecting portion adjacent to the blades is defined as A1, and an area of the water vent associated with the individual space is defined as B1, a ratio of A1 and B1 is set to an allowable value which is not less than 1000:15 of a lower limit and not more than 1000:5 of an upper limit.

A lane rope float attached to a rope for dividing a water surface of a pool into lanes, the lane rope float comprising:

• a central attachment portion configured to allow the rope to be inserted into a center of the float,
• an outer wall portion configured for stopping waves transmitted from the water surface of the pool at an outer side wall surface and forming an opening capable of guiding the waves transmitted from the water surface of the pool into a space in the float;
• a plurality of blades configured for connecting the outer wall portion to the central attachment portion and extending in a direction in which the rope extends so as to divide the space in the float into a plurality of spaces;
• and
• a connecting portion configured for connecting the plurality of blades to each other, the connecting portion comprising a water vent configured for discharging the waves introduced into the space in the float via the opening, and a guide portion configured for guiding the waves into the space in the float via the opening.