A composite material structure manufacturing jig (10) is used when manufacturing a composite material structure by adhering prepreg to a framework structure including a frame component that includes a channel extending along a longitudinal direction of the frame component. The composite material structure manufacturing jig (10) is inserted in the channel of the frame component and used therein. The jig (10) includes a tubular body (11) formed of an elastic material containing a reinforcement fiber, the body (11) including a trapezoidal transverse section that is a cross section orthogonal to a longitudinal direction of the body (11), the trapezoidal transverse section including an upper base and a lower base longer than the upper base. An inner surface of the body (11) is coated with an inner peripheral film (16) serving as a gas barrier layer.

A material of thermoplastic fusible inner mold is provided, including: a high crystalline polymeric material and a lubricant material, the high crystalline polymeric material mixed with the lubricant material. An inner mold is further provided, made of the material of thermoplastic fusible inner mold described above. A method for manufacturing hollow part is further provided, including the following steps of: providing the inner mold; covering the inner mold with a part material; heating the inner mold which is covered with the part material to form the part material; and heating the inner mold covered with the part material which is formed at a predetermined temperature to melt the inner mold out of the part material which is formed to form the hollow part.

A material of thermoplastic fusible inner mold is provided, including: a high crystalline polymeric material and a lubricant material, the high crystalline polymeric material mixed with the lubricant material. An inner mold is further provided, made of the material of thermoplastic fusible inner mold described above. A method for manufacturing hollow part is further provided, including the following steps of: providing the inner mold; covering the inner mold with a part material; heating the inner mold which is covered with the part material to form the part material; and heating the inner mold covered with the part material which is formed at a predetermined temperature to melt the inner mold out of the part material which is formed to form the hollow part.

A hybrid mandrel for forming a composite part may comprise a core and a sleeve located around the core. The core may include a rigid material. The sleeve may comprise an elastomeric material. The part may be formed by locating the hybrid mandrel in an injection mold, depositing a molten resin around the hybrid mandrel, curing the molten resin; and removing the hybrid mandrel.

A balloon wrapping apparatus for folding a balloon at a distal portion of an elongated shaft includes: a pleating section that forms the balloon with pleats; a folding section that folds the pleats formed in the balloon, along a circumferential direction; and a support base that supports the shaft and can be moved toward and away from the pleating section. The pleating section includes an insertion hole through which the balloon can be inserted, and a back surface hole provided in a back surface on the side opposite to the side on which the insertion hole is provided. The pleating section includes an assisting shaft which can be inserted into the back surface hole from the rear surface side, and an interlock portion interlocking the assisting shaft with the support base. The assisting shaft is formed with a cavity portion.

A balloon wrapping apparatus for folding a balloon at a distal portion of an elongated shaft includes: a pleating section that forms the balloon with pleats; a folding section that folds the pleats formed in the balloon, along a circumferential direction; and a support base that supports the shaft and can be moved toward and away from the pleating section. The pleating section includes an insertion hole through which the balloon can be inserted, and a back surface hole provided in a back surface on the side opposite to the side on which the insertion hole is provided. The pleating section includes an assisting shaft which can be inserted into the back surface hole from the rear surface side, and an interlock portion interlocking the assisting shaft with the support base. The assisting shaft is formed with a cavity portion.

A balloon wrapping apparatus and a balloon wrapping method are disclosed by which a balloon can be wrapped appropriately. The balloon wrapping apparatus for wrapping a balloon of a balloon catheter provided with the balloon at a distal portion of an elongated shaft includes: a pleating section that forms the balloon with wing shapes projecting in radial directions; a folding section that includes a plurality of blades aligned in a circumferential direction, and that folds the wing shapes formed in the balloon along the circumferential direction by moving rotationally the blades; and a rotational support portion that supports a portion of the shaft which portion is on a proximal side of the balloon, and that rotates the shaft in a direction opposite to a rotary movement direction of the blades in a state in which the balloon is positioned in relation to the folding section.

A balloon wrapping apparatus and a balloon wrapping method are disclosed by which a balloon can be wrapped appropriately. The balloon wrapping apparatus for wrapping a balloon of a balloon catheter provided with the balloon at a distal portion of an elongated shaft includes: a pleating section that forms the balloon with wing shapes projecting in radial directions; a folding section that includes a plurality of blades aligned in a circumferential direction, and that folds the wing shapes formed in the balloon along the circumferential direction by moving rotationally the blades; and a rotational support portion that supports a portion of the shaft which portion is on a proximal side of the balloon, and that rotates the shaft in a direction opposite to a rotary movement direction of the blades in a state in which the balloon is positioned in relation to the folding section.

The present invention relates to an injection moulding system for forming an oven liner, particularly of the type that is used with microwave ovens. Oven liners are of particular benefit when used inside microwave ovens. They improve hygiene as where food spills or spurts onto the oven liner rather than an interior of the microwave oven. An injection moulding system for forming an oven liner includes: a first mould tool which defines a cavity of length (L), width (W) and height (H), the first mould tool has a substantially rectangular end face with dimensions corresponding to the width (W) and height (H) of the cavity and has a hot feed located at a centroid of its end face; and a wedge collapsing tool is received in the cavity so as to contact and engage with an external periphery of the first mould tool at selected locations in order to define a volume into which hot material feed is injected, wherein the wedge collapsing tool comprises a first part and a second part in slidable contact one with another, and the width (W2) of the second part exceeds the width (W1) of the first part of the wedge collapsing tool by at least 0.1 mm so that a split line is formed on at least one side of an interior surface of the oven liner.

The present disclosure encompasses three-dimensional articles comprising flexible-composite materials and methods of manufacturing said three-dimensional articles. More particularly, the present system relates to methods for manufacturing seamless three-dimensional-shaped articles usable for such finished products as airbags/inflatable structures, bags, shoes, and similar three-dimensional products. A preferred manufacturing process combines composite molding methods with specific precursor materials to form fiber-reinforced continuous shaped articles that are flexible and collapsible.