Patent ID: 8414078
Filing Date: 2013-04-09
Classification: B60N

Abstract:
1. A head rest apparatus for automobiles comprising: a metal stay of approximately reverse U-shaped and having a pair of leg portions extending approximately in parallel with each other and separated with a distance therebetween and a horizontal rod connecting the pair of leg portions, a metal plate wound around the horizontal rod of the metal stay to generate a predetermined friction resistance thereon and frictionally rotatable relative to the horizontal rod, the metal plate including a securing portion secured to the horizontal rod and a flat plate portion projecting from the securing portion towards the extending direction of the leg portions, and a core member made of resin and surrounding at least the horizontal rod of the metal stay, the metal plate and a portion of the pair of leg portions, the core member being formed by integrating separately formed first divided body and second divided body and being provided with a space inside thereof for allowing a movement of the pair of leg portions, the first divided body having; wherein: an inclining orientation of the second tapered guide surface intersects with an axis connecting the pair of the tapered guide surfaces, the flat plate portion is supported by the rib from the rear side surface of the securing portion of the metal plate, by the support portion from the rear side surface of the flat plate portion, and by the lower surfaces of the pair of pawl portions and the lower surface of the second pawl portion from the front side surface of the flat plate portion, thereby a movement of the flat plate portion is restricted in a thickness direction of the flat plate portion, a movement of the flat plate portion in a second direction connecting the pair of holding pawls is restricted by the root portions of the pair of holding pawls, and a movement of the flat plate portion in a direction perpendicular to the second direction is restricted by the second root portion of the second holding pawl.