| 摘要 |
The invention relates to a piece of furniture (1) comprising a body supported by legs (3, 4, 5, 6) intended to rest on the floor, as well as to a retractable rolling system comprising rolling elements suitable for adopting: a first position, referred to as the rolling position, bearing the load of the furniture and enabling said furniture to be rolled across the floor; and a second position (Pt), referred to as the working position, wherein the rolling elements are retracted above the surfaces of the legs resting on the floor. According to the invention, the legs (3, 4, 5, 6) are tubular. The invention is characterized in that the rolling elements are ball-transfer systems, each of which is capable of moving from said working position, wherein each ball-transfer system is retracted inside a tubular leg, towards the first rolling position wherein the ball of said ball-transfer system projects below the supporting surface of the leg through the bottom opening thereof. The ball-transfer systems may be replaced by omnidirectional wheels. |
