To provide a turning buoy for motorboat racing capable of suppressing excessive filling of air into a hollow float unit without measuring air pressure.SOLUTION: A turning buoy A for motorboat racing installed in a prescribed position on water surface in a motorboat race course with a hollow conical unit 1 above composed of elastic material and a hollow float unit 4 below integrally assembled and having air sealed in at least the hollow float unit 4 includes a long member 8 provided inside the hollow float unit 4 and having both end units in a lengthwise direction coupled to the hollow float unit 4. The hollow float unit 4 has the long member 8 pulled in the lengthwise direction due to expansion of the hollow float unit 4 when excessive air is filled inside and an indention 9 depressed inside to be visible from outside is formed in at least one position of the two positions coupled to both end units in the lengthwise direction of the long member 8.SELECTED DRAWING: Figure 1

    【課題】空気圧を計測することなく中空フロート部に空気を入れ過ぎることを抑制できる競艇用ターンブイを提供する。【解決手段】競艇場における水面上の所定位置に設置され、弾性材料からなる上側の中空円錐部1及び下側の中空フロート部4が一体的に組み付けられて少なくとも中空フロート部4内に空気が密封された競艇用ターンブイAであって、中空フロート部4内に設けられ、長さ方向両端部が中空フロート部4に結合された、長尺部材8を備える。中空フロート部4は、内部に空気を入れ過ぎると、中空フロート部4の膨張により長尺部材8が長さ方向に引っ張られ、長尺部材8の長さ方向両端部に結合された2箇所のうち少なくとも1箇所に、外部から視認できるように内側に窪んだ凹部9が形成される。【選択図】図1


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    Title :

    TURNING BUOY FOR MOTORBOAT RACING


    Additional title:

    競艇用ターンブイ


    Contributors:

    Publication date :

    2024-06-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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