Patent ID: 7717868

Claim:
A chair-type massaging apparatus comprising: a leg rest including a support portion configured to support a lower leg of a user; and an expandable portion which is protrusible forward from the support portion to press the lower leg of the user and is retractable; wherein the leg rest is configured such that the support portion and the expandable portion form a substantially flat surface with the expandable portion retracted; wherein the support portion has two support surfaces arranged rightward and leftward and configured to allow right and left lower legs of the user to be respectively supported thereon, mounting surfaces that are respectively located outside the support surfaces in a rightward direction and a leftward direction and are substantially parallel to the support surfaces, and a support protrusion mounted between the two support surfaces to protrude forward further than the support surfaces and configured to support inner regions of calves of legs of the user; wherein the expandable portion includes a massaging portion configured to press the lower leg of the user; wherein the massaging portion includes: a rear air bag that is mounted to one of the mounting surfaces and is configured to expand and contract by inflowing and outflowing air; a receiver plate that is positioned forward of the rear air bag and is pivotally mounted to a region of the support portion between one of the support surfaces and a mounting position of the rear air bag by a pivot extending substantially vertically; and a front air bag which is positioned forward of the receiver plate in such a manner that one end thereof, which is expandable in a bellows-like manner, is distant from the pivot in a plane parallel to a surface of the receiver plate and an opposite end thereof, which is unexpandable, is closer to the pivot in the plane parallel to the surface of the receiver plate, the front air bag being configured to expand in a fan-shaped form from a substantially flat state by inflowing air thereto; wherein the massaging portion is configured in such a manner that with the rear air bag and the front air bag contracted, the massaging portion and the one of the support surfaces form a substantially flat surface, while, with the rear air bag and the front air bag in an expanded state, the front air bag is configured to press an outer region of a shin of the lower leg of the user substantially backward, and wherein the rightward direction, the leftward direction, forward, and backward are directions from a perspective of the user seated in the chair-type massaging apparatus.