Abstract: A mobile body according to the disclosure has an omni wheel in which a pair of wheels is arranged parallel to each other so that phases of the wheels are shifted from each other. Each of the wheels having a plurality of rollers in a circumferential direction. The rigidity of a center portion of each of the rollers in an axis direction is higher than rigidity of an end portion of the roller in the axis direction.

Abstract: A method of manufacturing a driving drum includes: molding a first cylindrical member including first large- and small-diameter parts, a diameter of an outer circumferential surface of the first small-diameter part being smaller than that of the first large-diameter part; molding a second cylindrical member having second large- and small-diameter parts, a diameter of an inner circumferential surface of the second large-diameter part corresponding to the diameter of the outer circumferential surface of the first small-diameter part, a diameter of an inner circumferential surface of the second small-diameter part corresponding to that of the first small-diameter part, and the diameter of the inner circumferential surface of the second small-diameter part being smaller than that of the second large-diameter part; and forming a first cam groove between the first and second small-diameter parts and forming a second cam groove between the first and second large-diameter parts.

Abstract: A first cylindrical member including protrusions on an end face is formed in an axial direction, the end face having projections and recesses in the axial direction so as to correspond to cam profiles of first and second cam grooves, a second cylindrical member having an end face having projections and recesses so as to correspond to the projections and the recesses of the first cylindrical member is formed, and at a position where the projections and the recesses of the first cylindrical member correspond to the projections and the recesses of the second cylindrical member, the protrusions of the first cylindrical member are joined to the end face of the second cylindrical member, to thereby form the first cam groove on an inner side of the protrusions in the circumferential direction and form the second cam groove on an outer side of the protrusions in the circumferential direction.

Abstract: A method of manufacturing a driving drum includes: molding a first cylindrical member including first large- and small-diameter parts, a diameter of an outer circumferential surface of the first small-diameter part being smaller than that of the first large-diameter part; molding a second cylindrical member having second large- and small-diameter parts, a diameter of an inner circumferential surface of the second large-diameter part corresponding to the diameter of the outer circumferential surface of the first small-diameter part, a diameter of an inner circumferential surface of the second small-diameter part corresponding to that of the first small-diameter part, and the diameter of the inner circumferential surface of the second small-diameter part being smaller than that of the second large-diameter part; and forming a first cam groove between the first and second small-diameter parts and forming a second cam groove between the first and second large-diameter parts.

Abstract: A feces sampling container includes: a lid (2) that includes a feces sampling rod (2b) and a cap (2a), a circular protrusion (2f); a container body (3); and an inside plug (4) that includes a removal part (4b), and a circular protrusion (4g), the inside plug (4) being fitted to the inside of the container body (3), a flange (3c), an overhang (4d) being formed on the outer circumferential surface of the inside plug (4) at a predetermined position along the circumferential direction so that the overhang (4d) is situated on the flange (3c), a removal mechanism (2e, 4f), and a cam mechanism (2h, 4h) that positions the removal mechanism being formed over the circular protrusion (2f) formed on the inner circumferential surface of the cap (2a) and the circular protrusion (4g) formed on the outer circumferential surface of the inside plug (4).

Abstract: A feces sampling container includes: a lid (2) that includes a feces sampling rod (2b) and a cap (2a), a circular protrusion (2f); a container body (3); and an inside plug (4) that includes a removal part (4b), and a circular protrusion (4g), the inside plug (4) being fitted to the inside of the container body (3), a flange (3c), an overhang (4d) being formed on the outer circumferential surface of the inside plug (4) at a predetermined position along the circumferential direction so that the overhang (4d) is situated on the flange (3c), a removal mechanism (2e, 4f), and a cam mechanism (2h, 4h) that positions the removal mechanism being formed over the circular protrusion (2f) formed on the inner circumferential surface of the cap (2a) and the circular protrusion (4g) formed on the outer circumferential surface of the inside plug (4).

Abstract: In effecting the stretching by using a stretch rod in a method of producing a biaxially stretched polyester bottle, the air is blown into the preform at such a flow rate that the preform does not come in contact with the stretch rod but the end thereof and does not come in contact with the surfaces of the mold, either. There can be produced a biaxially stretched polyester bottle having an average thickness of about 0.05 to about 0.2 mm or having a further decreased thickness using a resin in decreased amounts and having a decreased weight without developing burst or whitening caused by over-stretching, without forming ring-like thick portion yet maintaining a good yield and efficiency.

Abstract: In effecting the stretching by using a stretch rod in a method of producing a biaxially stretched polyester bottle, the air is blown into the preform at such a flow rate that the preform does not come in contact with the stretch rod but the end thereof and does not come in contact with the surfaces of the mold, either. There can be produced a biaxially stretched polyester bottle having an average thickness of about 0.05 to about 0.2 mm or having a further decreased thickness using a resin in decreased amounts and having a decreased weight without developing burst or whitening caused by over-stretching, without forming ring-like thick portion yet maintaining a good yield and efficiency.

Abstract: In effecting the stretching by using a stretch rod in a method of producing a biaxially stretched polyester bottle, the air is blown into the preform at such a flow rate that the preform does not come in contact with the stretch rod but the end thereof and does not come in contact with the surfaces of the mold, either. There can be produced a biaxially stretched polyester bottle having an average thickness of about 0.05 to about 0.2 mm or having a further decreased thickness using a resin in decreased amounts and having a decreased weight without developing burst or whitening caused by over-stretching, without forming ring-like thick portion yet maintaining a good yield and efficiency.