PROBLEM TO BE SOLVED: To provide a joint mechanism which can transfer rotation force of high load between two rotation members arranged rotatably around shaft lines arranged in skew position relationship and to provide medical equipment provided with the joint mechanism.SOLUTION: A joint mechanism includes two spur gears 9, 10, a support member 11 which supports the two spur gears 9, 10 rotatably around two joint shafts A, B arranged in skew position relationship leaving a space from each other and a rotation force transfer mechanism 12 which transfers rotation force between the spur gears 9, 10. Therein, the rotation force transfer mechanism 12 includes a transfer member 13 made of a rigid body supported movably only in the direction parallel to an intersection line between planes C, D respectively crossing orthogonally to the two joint shafts A, B, and a cam mechanism 14 or a link mechanism which are respectively arranged between the transfer member 13 and the two spur gears 9, 10 and converts rotational movement of the spur gears 9, 10 into linear movement of the transfer member 13.COPYRIGHT: (C)2015,JPO&INPIT【課題】ねじれの位置関係に配置される軸線回りに回転可能に配置される2つの回転部材間において高負荷の回転力を伝達することができる関節機構およびこれを備える医療機器を提供する。【解決手段】2つの平歯車9,10と、2つの該平歯車9,10を、相互に間隔をあけてねじれの位置関係に配置される2つの関節軸A,B回りに回転可能に支持する支持部材11と、前記平歯車9,10間において回転力を伝達する回転力伝達機構12とを備え、該回転力伝達機構12が、2つの前記関節軸A,Bにそれぞれ直交する平面C,Dどうしの交差線に平行な方向のみに移動可能に支持される剛体からなる伝達部材13と、該伝達部材13と2つの前記平歯車9,10との間にそれぞれ配置され、前記平歯車9,10の回転運動を前記伝達部材13の直線運動に変換するカム機構14またはリンク機構とを備える関節機構を提供する。【選択図】図2
