PROBLEM TO BE SOLVED: To provide a two-stage shaft sleeve for screw for boat and a screw for boat mounted with the same.SOLUTION: A two-stage shaft sleeve 40 of a screw for boat has a first transmission member 50 and a second transmission member 60. The first transmission member has a storage groove 52 and two projections 54 arranged with an interval in-between. The two projections are arranged so as to extend from a wall surface of the storage groove to a constant distance at a rear part. The second transmission member has a tube axis 70 and a vibration absorber 80. The tube axis has a first transmission portion 71 and a second transmission portion 72. The first transmission portion of the tube axis is inserted into the storage groove of the first transmission member, and has the projection outside. The projection outside of the first transmission portion is positioned between the two projections inside of the first transmission member, and is engaged with the one projection. The vibration absorber covers the outer peripheral surface of the second transmission portion of the tube axis.SELECTED DRAWING: Figure 3
【課題】ボート用スクリューの二段式シャフトスリーブおよびそれを着用したボート用スクリューを提供する。【解決手段】ボート用スクリューの二段式シャフトスリーブ40は第一伝動部材50および第二伝動部材60を備える。第一伝動部材は格納溝52と、内部に間隔を置いて配置された二つの凸状部54とを有する。二つの凸状部は格納溝の壁面から奥の一定距離まで伸びるように配置される。第二伝動部材は管軸70および振動吸収体80を有する。管軸は第一伝動部位71および第二伝動部位72を有する。管軸の第一伝動部位は第一伝動部材の格納溝に差し込まれ、外側に凸状部を有する。第一伝動部位の外側の凸状部は第一伝動部材の内部の二つの凸状部の間に位置付けられ、そのうちの一つの凸状部と噛み合う。振動吸収体は管軸の第二伝動部位の外周面を覆う。【選択図】図3
TWO-STAGE SHAFT SLEEVE FOR SCREW FOR BOAT AND SCREW FOR BOAT MOUNTED WITH THE SAME
ボート用スクリューの二段式シャフトスリーブおよびそれを着用したボート用スクリュー
2017-08-03
Patent
Electronic Resource
Japanese
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