Abstract: A container includes a container body, a cap member, a disk member and an evacuating unit. The cap member is mounted on a top open end of the container body and is rotatable about a vertical axis. The disk member is provided beneath and inside the cap member to sealingly close the top open end. The disk member has a downward hollow mounting portion in fluid communication with the top open end. The evacuating unit is operable by the cap member for evacuating air from the container body, and is coupled with the disk member. The evacuating unit has a piston mounted on the downward hollow mounting portion. The piston is movable upward and downward in the downward hollow mounting portion via rotation of the cap member so as to suck out air from the container body.

Abstract: A swinging mechanism for a toy includes a speed-reduction gear assembly driven by a motor, a linkage, a pair of swing blade units, and an eccentric unit. The speed-reduction gear assembly has a drive gear and a driven gear. The linkage has an actuating link and a carrier link. The carrier link has a turning axis between two opposite ends thereof. The actuating link has an end fixed to the carrier link adjacent to the turning axis. Each of the swing blade units has at least an inner blade and an outer blade hinged to one another. The inner blades of the swing blade units have inner ends connected pivotally and respectively to the two opposite ends of the carrier link. The outer blades of the swing blade units are juxtaposed side by side and have outer ends connected pivotally to one another. The inner and outer blades of the swing blade units have adjoining ends between the inner and outer ends, and hinge pins which interconnect the adjoining ends, respectively.

Abstract: A robot toy includes a movable arm which is constituted of alternatingly interconnected three first members and three second members. The first member has a first rotating unit for moving the adjacent second member about its longitudinal axis, and the second member has a second rotating unit for rotating the first member about an axis perpendicular to the longitudinal axis. The transmission system for transmitting the output motion of a motor to the arm includes a plurality of transmission cords which are made of metal wires twisted together for the transmission along long transmission lines.