摘要:
A helmet (100) including a cap-like multilayered sub-portion or multilayered structure (10) is described, said helmet including at least one layer of thermoformable foam material (14, 18) and one anti-penetration layer (16) coupled to said thermoformable foam layer so as to define at least partly the cap-like multilayered sub-portion or multilayered structure. The helmet (100) further includes at least one layer with energy absorption function (22), wherein the layer with energy absorption function (22) is arranged on, facing or coupled to, an intrados side of the first cap-like multilayered sub-portion or multilayered structure (10). A process for manufacturing this helmet (100) is also described.
摘要:
A bespoke protective sports helmet to be worn by a player engaged in a sporting activity is provided. The bespoke helmet includes i) systems and methods for acquiring, storing and processing a player's unique data, namely the player's anatomical features, where that player is to wear a protective sports helmet, (ii) for systems and methods of using the player's unique data to manufacture a protective sports helmet with a custom formed internal padding assembly that substantially corresponds to the player's unique data, and (iii) a protective sports helmet designed using the acquired and processed unique player's data and including the custom formed internal padding assembly that provides improved fit and comfort for the player. The system and method allows for the design and manufacture of a bespoke protective sports helmet that is purposely designed and manufactured to match the player's anatomical specifications.
摘要:
A method of manufacturing a body (1) made of composite material such as a shell of a helmet. Said body (1) constitutes a multilayer structure where each layer (2, 3, 4) is formed by superposed strata comprising portions of fabrics preimpregnated with thermoplastic resin in which at least some of said layers (2, 3, 4) are formed by woven or non-woven LFRTP-type preimpregnated fabrics. The outer layer (2) is formed by strata of portions of "veil" type or "felt" type fabrics, with non-woven and non-oriented fibers of lengths comprised between 5 and 20 mm. In the method, the multilayer structure arranged in a mold is subjected to the action exerted by a bag (15) that is inflated due to pressure occupying the cavity of the mold.
摘要:
A strap (100) includes an elongate flexible member (102) and at least one clip (104). The elongate flexible member is formed of first and second materials, the first material having a melting point corresponding to a melting point of a material at least partially forming the clip.
摘要:
A helmet with large vent openings includes a vent shield to prevent the penetration of foreign objects and a vent airflow regulator positioned over the vent shield so as to regulate the amount of airflow allowed within the interior of the helmet. The vent shield is attached to the foam liner during the in-mold process, while the vent airflow regulator is positioned behind the vent shield after the in-mold process in a post-applied manner. A foam insert is positioned behind the vent airflow regulator and also has vent openings.
摘要:
An energy absorbing liner system and method of making it, preferably by thermoforming. A helmet has an energy absorbing inner system positioned inside the shell. The liner has thermoformed interconnected energy absorbing modules that non-destructively rebound after one or more impacts. At least some of the modules in the layer have a basal portion with upper and lower sections when viewed in relation to the wearer's head. The upper section has one or more energy absorbing units. At least some of the units are provided with a wall with a domed cap that faces the outer shell. The units at least partially cushion the blow by absorbing energy imparted by an object that impacts the outer shell. The lower comfort section has a tiered arrangement of layers. The layers are relatively compliant and thus provide a comfortable yet firm fit of the helmet upon the wearer.
摘要:
Disclosed is an inner shell for safety helmets, which is massproduced and has a structure capable of efficiently absorbing and dispersing an impact, and a method of producing the same, which ensures the reduced material costs and the improved workability and productivity. The inner shell (10) includes a liner member (12) having openings at upper and lower parts thereof, and an impact absorbing member (14) surrounding a circumference of the liner member (12). The method includes injection-molding a molten plastic resin into a predetermined shape of liner member (12), putting the molded liner member (12) in a metal mold, forming the impact absorbing member (14) using a foamed resin, including Styrofoam, a polyethylene foam, and a urethane foam, in the metal mold after the metal mold is hermetically sealed, separating the inner shell (10) from the metal mold, and finishing the inner shell (10).
摘要:
An improved lightweight, shock-resistant and tension-proof safety helmet manufactured at a low cost is provided. The safety helmet includes a shell, which is manufactured by molding a liner using a thermoplastic resin, covering the outside of the liner with a reinforced fiber sheet, preparing a mold, disposing the liner upside down on a concave molding side of the mold, injecting a thermosetting resin between the liner and the molding side, hardening the thermosetting resin, and detaching the hardened thermosetting resin from the mold; and a cushion pad attached to the inside of the liner. The safety helmet may include a guide surface referred to as a wind flap in order to guide external air into the safety helmet.
摘要:
A press (10, 100) for molding expanded thermoplastic polymers, comprising at least one portion (11, 12, 111, 112) comprising a fixed plane (14, 48, 114, 148) with a first chamber (42, 74, 142, 174) and a movable plane (16, 50, 116, 150) with a chamber (46, 78, 146, 178), the fixed plane (14, 48, 114, 148) and the movable plane (16, 50, 116, 150) comprising at least one male mold part (22a, 22b, 58a, 58b, 122a, 122b, 158a, 158b) and at least one female mold part (24a, 24b, 56a, 56b, 124a, 124b, 156a, 156b), which form at least one cavity upon closure; the fixed plane (14, 48, 148) of the at least one portion (11, 12, 112) comprises, in a second chamber (44, 76, 176) obtained inside the first chamber (42, 74, 174), a duct (38, 70, 170) for dispensing steam inside the second chamber (44, 76, 176), adapted to superheat the at least one male mold part (22a, 22b, 158a) and/or the at least one female mold part (56a, 56b, 156b), and a duct (36, 68, 168) for dispensing water inside the second chamber (44, 76, 176), adapted to cool the at least one male mold part (22a, 22b, 158a) and/or the at least one female mold part (56a, 56b, 156b), and a condensation discharge duct (40, 72, 172).