초록 ▼

A thin-profile multi-compartmented inflatable liner for use as an energy-absorbing device inside a protective headgear or other protective equipment. The multiple air compartments with integral intercommunicating air channels are formed of flexible plastic sheets which are dielectrically heat bonded

A thin-profile multi-compartmented inflatable liner for use as an energy-absorbing device inside a protective headgear or other protective equipment. The multiple air compartments with integral intercommunicating air channels are formed of flexible plastic sheets which are dielectrically heat bonded together. The air compartments have within, resilient foam plastic co-acting bafflements with integral protrusions which interact with the intercommunicating air channels to thereby control the rate of air flow between the air compartments in response to an impact compression of the air compartments. The unique construction provides a thin-profile, light weight, high-energy absorbing liner with strength, durability and reliability to a high degree.

대표청구항 ▼

A liner for use in a protective helmet and other protective equipment, comprising: (a) a first flexible plastic sheet; (b) a second flexible plastic sheet fixedly attached to the first plastic sheet, the first and second attached sheets forming at least two spaced apart pre-formed air compartments w

A liner for use in a protective helmet and other protective equipment, comprising: (a) a first flexible plastic sheet; (b) a second flexible plastic sheet fixedly attached to the first plastic sheet, the first and second attached sheets forming at least two spaced apart pre-formed air compartments with an integral pre-formed intercommunicating air channel therebetween; (c) at least one resilient bafflement positioned within the air compartments and in contact with at least one of the plastic sheets, the bafflement having formed thereon sidewall edges with protrusions sized to engage open ends of the corresponding intercommunicating air channel; the two air compartments and the resilient bafflement continually co-acting to control a variable rate of flow between the compartments in direct response to varying forces of impact to the air compartment, the variable rate of flow being regulated by the movement of the resilient bafflement against the open ends of the intercommunicating air channel responsive to the impact forces; and (d) means, for inflating the two air compartments to a similar desired pressure, through the intercommunicating channel associated with one of the flexible sheets.