Marine vessel steering device and marine vessel

Abstract

A marine vessel steering device includes a hub to rotate with a helm shaft and to which a steering wheel is attached, and a stopper attached to a pedestal that does not rotate around an axis of the helm shaft and faces the hub. The hub includes a protrusion that is integral with the hub, and the stopper includes a regulator that is integral with the stopper. When the helm shaft rotates around the axis, a rotation angle of the steering wheel is limited because the protrusion of the hub abuts against the regulator of the stopper.

What is claimed is: 
     
         1 . A marine vessel steering device comprising:
 a hub to rotate with a helm shaft and to which a steering wheel is attached; and   a stopper attached to a pedestal that does not rotate around an axis of the helm shaft and faces the hub; wherein   the hub includes a protrusion integral with the hub;   the stopper includes a regulator integral with the stopper; and   when the helm shaft rotates around the axis, a rotation angle of the steering wheel is limited due to the protrusion of the hub abutting against the regulator of the stopper.   
     
     
         2 . The marine vessel steering device according to  claim 1 , wherein
 at least a portion of the stopper has a cylindrical or substantially cylindrical shape, and the regulator protrudes toward a central axis of the stopper; and   the protrusion of the hub extends into a portion of the stopper excluding the regulator.   
     
     
         3 . The marine vessel steering device according to  claim 2 , wherein the protrusion of the hub protrudes toward a bow side of a marine vessel, and the regulator of the stopper protrudes toward a stern side of the marine vessel. 
     
     
         4 . The marine vessel steering device according to  claim 1 , wherein the stopper defines a guide for wiring from the steering wheel. 
     
     
         5 . A marine vessel steering device comprising:
 a first component to rotate with a helm shaft; and   a second component that does not rotate around an axis of the helm shaft; wherein   the first component includes a protrusion integral with the first component;   the second component includes a regulator integral with the second component; and   when the helm shaft rotates around the axis, a rotation angle of the helm shaft is limited due to the protrusion of the first component abutting against the regulator of the second component.   
     
     
         6 . The marine vessel steering apparatus according to  claim 5 , wherein the second component is attached to a pedestal that does not rotate around the axis of the helm shaft. 
     
     
         7 . A marine vessel comprising:
 a marine vessel steering device including:
 a hub to rotate with a helm shaft and to which a steering wheel is attached; and 
 a stopper attached to a pedestal that does not rotate around an axis of the helm shaft and faces the hub; wherein 
   the hub includes a protrusion integral with the hub;   the stopper includes a regulator integral with the stopper; and   when the helm shaft rotates around the axis, a rotation angle of the steering wheel is limited due to the protrusion of the hub abutting against the regulator of the stopper.