Abstract: A bag-closing device is disclosed which is capable of using general-purpose bags and which keeps the loss of capacity to the necessary minimum, and a shredder is provided which, even when shredded pieces of trash are stored in a bag, does not cause scattering of the shredded pieces of trash when closing the bag. The bag-closing device comprises one pair of horizontally facing winding shafts having tip parts for detachably holding a bag, which is open so as to allow objects to be put inside, at two facing opening edge parts from the outside of the bag, whereby the entire opening edge of the bag containing objects put therein is formed into a single horizontal roll-like shape by driving the one pair of winding shafts to rotate.

Abstract: An articulating mechanism for use in a single- or multiple-fluid-path painting robot is presented. The articulation design is particularly suitable as a wrist-joint and is free from the problems of dead space and single-fluid-path limitations found in conventional wrist-joint designs. The mechanism is based on coupling two cylindrical casings coaxially so that arm casing, wrist casing and the flange ends are coaxially joint about a shaft axis. The end sections of each components are sealed while leaving a fluid space of a given spacing between the outer and inner casings. The casings provide a fluid passage space extending in the direction of the casings and is provided with fluid delivery holes for the delivery of paint and other fluid medium. The designs include a blocking member so that cleaning of the robotic device, and quick maintenance or color changes can be carried out during production operation.