Present disclosure provide a tread for a tire having a plurality of grooves formed in the tread, a plurality of contact elements delimited by a plurality of grooves and having circumferential surfaces, transverse surfaces and a contact surface intended to come into contact with ground during rolling, the contact element having a height H, and at least one connecting member connecting the transverse surface of the contact element to the transverse surface of the circumferentially adjacent contact element, a distance h between one of the connecting members and the contact face is at most equal to 30% of the height H, and a material of the connecting member is different from a material of the contact element, and a Young modulus of the material of the connecting member is higher than a Young modulus of the material of the contact element.

Golf ball methods and molds for quickly and efficiently eliminating air/gas from within a mold while better centering a subassembly in the mold during golf ball manufacture and the improved golf balls resulting therefrom.

An apparatus for embedding objects in castings made in batch includes a base comprising a plurality of cavities for molding, each cavity corresponding to an item to be molded; a framework comprising a plurality of gripping mechanisms for suspending objects from the framework into the cavities for embedding the objects within the molded items, each gripping mechanism being configured to release a respective object upon actuation; and, a lifting mechanism transitionable for effecting actuation of the plurality of gripping mechanisms such that objects suspended by the gripping mechanisms are released. A method of casting includes partially filling a plurality of cavities with a liquid; suspending objects from a framework; simultaneously partially sinking the objects into the liquid in the cavities; releasing the objects from the framework after at least partially hardening of the liquid; and fully immersing the objects with the liquid.

An apparatus and a method for manufacturing a reactor capable of both absorbing a dimensional variation of a core and preventing deformation due to a resin pressure during molding are provided. An apparatus for manufacturing a reactor is provided with a core. The apparatus includes a mold including a cavity for housing the core. The mold includes a plurality of pins protruding into the cavity. When the core is disposed in the cavity, at least one of the plurality of pins is not fixed, and each of the pins functions as a positioning pin. When a molded article is molded, the pin is fixed, and each pin functions as a core support pin for supporting the core against a resin pressure during molding.

An apparatus and a method for manufacturing a reactor capable of preventing a core from being cracked due to a resin pressure during molding are provided. An apparatus for manufacturing a reactor provided with a core includes a mold with a cavity for housing the core. The mold includes a core support pin brought into contact with the core and configured to support the core against a resin pressure during molding. Resin flow paths during molding includes an inner flow path passing through inside the core and an outer flow path passing through outside the core. The core support pin is disposed at a position where a width of the inner flow path is greater than a width of the outer flow path.

A disclosed manufacturing method includes a step for draping a fiber reinforcement, into a plurality of superposed layers, a step for providing resin in the fiber reinforcement, and a step for polymerizing the resin. The method includes, prior to the draping step, a step for making cutouts with a predetermined shape in the fiber reinforcement, and during the draping step, the layers of fiber reinforcement are superposed by putting the cutouts facing each other, the whole of the cutouts of the superposed layers forming a housing at least for an insert.

The invention relates to molding of a roller in which a roller body is provided integrally on the outer periphery of an axial core member, and the objective of the invention is to prevent the generation of a thin burr, and damage to the die. In order to achieve this objective, a die is provided with a first split die and a second split die which can butt against one another or separate from one another at mutually-opposing parting surfaces. A roller body molding surface, a cavity being defined between the axial core member and the roller body molding surface when the mold is clamped; and recessed portions which are located at both end portions of the supporting portions and extend along the parting surfaces, and which are not in contact with the outer peripheral surface of the axial core member when the mold is clamped.

The present invention is intended to provide a manufacturing method of an insert molded article that makes it possible to manufacture efficiently the insert molded article including a metallic insert, an inside member made of a synthetic resin and covering a portion of the insert, and an outside member made of a synthetic resin different from the material of the inside member and covering a portion of the inside member using general molding machines, not a dedicated two-color molding machine.

General molding machines are used to manufacture the insert molded article formed by injection molding of a resin part in twice. An insert core 7 is used in common in primary molding using a primary molding die C1 and in a secondary molding using a secondary molding die. A round shaft 7C of the insert core 7 is fitted into an internal hole 2C of an insert 2 to form a coupled body 10 in which the insert 2 and the insert core 7 are coupled together. The coupled body 10 is used in common at the primary molding step and the secondary molding step.

A method includes disposing fibrous material with a first mandrel, a second mandrel and a first mold section, the first mandrel including a first base, the second mandrel including a second base, and the first mold section including a support surface; arranging the first base on the support surface; arranging the second base on the support surface adjacent a first side of the first base, the arranging including moving the second base along a first trajectory that is substantially coincident with a corner between the first side of the first base and the support surface; arranging a second mold section with the first mold section to provide a mold, where the first mandrel and the second mandrel are between the first and the second mold sections; injecting resin into the mold to engage the fibrous material; and curing the resin to form a composite component.

Three-dimensional decorative articles are produced from blanks of heat-shrinkable plastic sheet material, using a mold base having an outer surface with a recess over which a blank is placed, and a convex mold insert that moves into the recess by gravity as the blank softens and cooperates with the interior wall of the recess to shape the sheet material into a three-dimensional decorative article. A guide peg extends outward from the bottom of the recess past the outer surface of the mold base and extends through a hole formed in the blank, and through a guide hole in the mold insert to support the mold insert before heating and to guide the mold insert as it moves into the recess of the mold base.