| 摘要 |
A support device has a rod-like support member and a base for maintaining the support member in upright position. A guide device extends along the length of the support member, which has a free top end at its farthest distance from the base. Each of a plurality of body members has an axial bore formed therethrough whereby each of the body members is removably slidably mounted on the support member. Each of the body members has a directing device for cooperating with the guide device in a manner whereby each of the body members rotates about the axis of the support member in a first direction of rotation when it slides on the support member toward the base and in a second opposite direction of rotation, when it slides on the support member away from the base thereby providing variable spiral motion of the body members. A top member has an axial bore formed therein whereby the top member is removably slidably mounted on the support member. The top member has a directing device for cooperating with the guide device at the top end of the support member in a manner whereby the top member rotates about the axis of the support member in the first direction of rotation when it slides on the support member toward the base and in the second direction of rotation when it slides on the support member away from the base thereby providing variable spiral motion of the top member.
|
