An output device comprising: a housing; a first guide hole disposed in the housing; a second guide hole disposed in the housing so as to cross a base-side portion of the first guide hole; a first rod for output inserted into the first guide hole so as to be movable in an axial direction of the first rod; a second rod for driving inserted into the second guide hole so as to be movable in an axial direction of the second rod; a driving means connected to the second rod and configured to move the second rod in the axial direction of the second rod; an accommodation groove disposed in one of two members which are the base-side portion of the first rod and the second rod, the accommodation groove extending in the axial direction of the second rod; an insertion portion provided to the other of the two members so as to be inserted into the accommodation groove; and a guide member provided in the base-side portion of the first rod; characterised by a cam groove provided in the second rod so as to directly or indirectly make an engagement with the guide member, the cam groove having a horizontal groove portion and a driving groove portion inclined rightward and downward, the housing including a lower housing, which is a main body portion, and a cylindrical plug portion protruding upward unitarily with an upper portion of the lower housing, and a collet fitted to a lower half portion of the peripheral wall of the plug portion, having a slit extending in the vertical direction, and configured to be radially contractible and to be radially expandable by virtue of its resilience, the collet being biased upward by advance springs. a housing; a first guide hole disposed in the housing; a second guide hole disposed in the housing so as to cross a base-side portion of the first guide hole; a first rod for output inserted into the first guide hole so as to be movable in an axial direction of the first rod; a second rod for driving inserted into the second guide hole so as to be movable in an axial direction of the second rod; a driving means connected to the second rod and configured to move the second rod in the axial direction of the second rod; an accommodation groove disposed in one of two members which are the base-side portion of the first rod and the second rod, the accommodation groove extending in the axial direction of the second rod; an insertion portion provided to the other of the two members so as to be inserted into the accommodation groove; and a guide member provided in the base-side portion of the first rod; characterised by a cam groove provided in the second rod so as to directly or indirectly make an engagement with the guide member, the cam groove having a horizontal groove portion and a driving groove portion inclined rightward and downward, the housing including a lower housing, which is a main body portion, and a cylindrical plug portion protruding upward unitarily with an upper portion of the lower housing, and a collet fitted to a lower half portion of the peripheral wall of the plug portion, having a slit extending in the vertical direction, and configured to be radially contractible and to be radially expandable by virtue of its resilience, the collet being biased upward by advance springs.