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

Abstract

The present invention provides an attaching structure of a lane rope float, and a lane rope float set for a swimmer to easily swim and also to easily swim after the turn. The attachment structure of the present invention is configured for attaching a plurality of lane rope floats to a rope, the lane rope floats are attached to the rope by a tubular portion and are connectable to the outer wall of the pool to partition each lane, and the lane rope floats are made of a synthetic resin material, and the gaps between at least a part of the lane rope floats at the rope side connected to the outer wall of the pool is wider than the gaps between at least a part of the lane rope floats arranged in a vicinity of the center of the pool.

1 . An attachment structure configured for attaching a plurality of lane rope floats to a rope,
 wherein the lane rope floats are attached to the rope via a tubular portion and connectable to an outer wall of a pool to partition each lane, and the lane rope floats are made of a synthetic resin material, and   wherein a transmission rate of at least a part of the lane rope floats at a rope side connected to an outer wall of the pool is 3% to 7%.   
     
     
         2 . The attachment structure according to  claim 1 ,
 wherein gaps between at least a part of the lane rope floats at a rope side connected to the outer wall of the pool are wider than gaps between at least a part of the lane rope floats arranged in a vicinity of a center of the pool.   
     
     
         3 . The attachment structure according to  claim 1 , wherein the attachment structure comprises spacers arranged between the landed rope floats. 
     
     
         4 . The attachment structure according to  claim 3 , wherein the attachment structure comprises the spacers arranged between the landed rope floats, such that gaps between at least a part of the lane rope floats at a rope side connected to the outer wall of the pool are wider than gaps between at least a part of the lane rope floats arranged in a vicinity of a center of the pool. 
     
     
         5 . The attachment structure according to  claim 1 , wherein widths of at least a part of the lane rope floats arranged in the vicinity of a center of the pool are wider than widths of at least a part of the lane rope floats at a rope side connected to the outer wall of the pool. 
     
     
         6 . The attachment structure according to  claim 1 ,
 wherein a transmission rate of at least a part of the lane rope floats at a rope side connected to an outer wall of the pool is 2% to 30% and is higher than a transmission rate of at least a part of the lane rope floats arranged in a vicinity of a center of the pool.   
     
     
         7 . 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 A 1 , and an area of the water vent associated with the individual space is defined as B 1 , a ratio of A 1  and B 1  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.   
     
     
         8 . The lane rope float according to  claim 7 , wherein in a case that the volume of the individual space partitioned at least by the pair of adjacent blades, the outer wall portion adjacent to the blades, and the connecting portion adjacent to the blades is defined as A 1 , and an area of the opening associated with the individual space is defined as C 1 , and a ratio of A 1  to C 1  is set to an allowable value which is not less than 1000:25 of a lower limit and not more than 1000:15 of an upper limit. 
     
     
         9 . The lane rope float according to  claim 7 , wherein the connecting portion further comprises a guide portion configured for guiding the waves introduced into the space in the float via the opening. 
     
     
         10 . The lane rope float according to  claim 9 , wherein the guide portion comprises a projecting portion projecting in the direction in which the rope extends. 
     
     
         11 . The lane rope float according to  claim 10 , wherein the guide portion comprises a tapered surface at a part of the guide portion, and the tapered surface is configured for guiding the waves in the space to the water vent. 
     
     
         12 . The lane rope float according to  claim 7 , wherein the lane rope float is attached to the rope by a following way:
 at the connection portion connecting the outer wall portion and the blades, in a situation when the blades are placed on a water surface, an wave preventing portion is arranged on one side of a portion which is cut in a direction perpendicular to the water surface and is in the direction in which the rope extends, and an ride-over portion is arranged at an opposite side, such that the wave preventing portion is located on a water surface side of the pool and the ride-over portion is located in the pool water.   
     
     
         13 . The lane rope float according to  claim 7 , wherein the connecting portion further comprises a guide portion configured for guiding the waves into the space in the float via the opening. 
     
     
         14 . The lane rope float according to  claim 7 , wherein the lane rope float is attached to the rope by following way:
 at a connection portion which connects the outer wall portion and the blades, in a situation in which the blades are placed on the water surface, an wave preventing portion is arranged on one side of a portion which is cut in a direction perpendicular to the water surface and is in the direction in which the rope extends, and an ride-over portion is arranged on an opposite side, such that the wave preventing portion is located on a water surface side and the ride-over portion is located in the pool water.   
     
     
         15 . 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.