| 摘要 |
<p>A massage tool has two parallel rollers mounted for free rotation in a manually operated housing, which is connected to a suitable vacuum source to create a vacuum in the space above the rollers. The two active rollers are mounted at a fixed distance between axes, the rollers being supported between two parallel walls at the lower or distal part of the housing. The walls define a chamber which is substantially the same height as the diameter of the rollers. The latter form a tangent substantially at a roof of the chamber, but there is a small clearance-a few hundredths of a millimeter-to permit rotation. The rollers project slightly beyond the lower or distal ends of the walls. The vacuum conduit is flared out somewhat at the roof of the chamber to spread evenly over the area between the rollers.</p> |
