Patent ID: 7727043
Filing Date: 2010-06-01
Classification: A63H

Abstract:
1. A curling mechanism comprising a first member; a first segment rotatably connected to the first member at a first pivot axis; a second segment rotatably connected to the first segment at a second pivot axis, the second pivot axis being disposed distally relative to the first pivot axis; and a first cross member rotatably attached to the first member at a first cross member first attachment point, and also rotatably attached to the second segment at a first cross member second attachment point, the first cross member having a first cross member longitudinal axis defined by said two attachment points; wherein said first cross member longitudinal axis is skew to a line between the first and second pivot axes; and wherein rotational movement of the first segment relative to the first member causes the first cross member to exert a rotational force on the second segment relative to the first segment, thereby causing the second segment to rotate relative to the first segment.