Patent ID: 7556566

Claim:
A portable putting practice device, comprising: a hexahedral box having left and right surfaces, upper and lower surfaces, and front and rear surfaces; a rotary rod passing through the box in such a way that respective ends of the rotary rod are rotatably supported by the left and right surfaces of the box; a handle extending from one end of the rotary rod in such a way as to protrude out of the box, and functioning to rotate the rotary rod; a mat secured at a first end thereof to the rotary rod, a second end of the mat being a free end which is pulled out through an opening formed in the front surface of the box; and a flexible guide wall foldably provided on each of side ends of the mat in a longitudinal direction thereof, wherein, when the mat is wound around the rotary rod and is stored in the box in a roll form, the foldable guide wall is unfolded outwards relative to the side end of the mat, so that the guide wall is integrally wound together with the mat while the guide wall is on the same level as the mat, and, after the mat is unwound from the rotary rod and is pulled out of the box, the foldable guide wall is folded inwards relative to the side end of the mat in such a way as to protrude upwards from an upper surface of the mat, thus serving as a fence for preventing a putting practice ball from escaping from the mat.