Safety helmet capable of absorbing multi-direction impact

Abstract

A safety helmet includes a shell, a flexible frame attached to the shell from inside, and a slide-facilitating member attached to the flexible frame from inside. In virtue of the slide-facilitating member, the shell when receiving incoming impact can slide with respect to a head of a user wearing it, so that the safety helmet can absorb and convert energy of the incoming impact force into other forms of energy, thereby enhancing protection to the user's head.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is a continuation of U.S. patent application Ser. No. 16 / 023,832, filed Jun. 29, 2018, and this application claims priority of Application No. 107120239 filed in Taiwan on Jun. 12, 2018 under 35 U.S.C. § 119; which are incorporated by reference herein in their entirety.BACKGROUND OF THE INVENTION1. Technical Field[0002]The present invention relates to safety helmets, and more particularly to a safety helmet that absorbs impact from multiple directions.2. Description of Related Art[0003]Most existing safety helmets are formed by a rigid casing and a buffer layer filled under the rigidity casing. When impact acts on such a known safety helmet, the rigidity casing first bears a part of the impact energy, and the buffer layer later absorbs a part of the energy. The remaining energy has to be borne by the user's head and cervical vertebra. For safety helmets, incoming impact can be divided into three types, namely radial impact...

AI Technical Summary

Benefits of technology

The helmet effectively absorbs and converts impact forces, providing improved protection against diagonal impacts by distributing and dissipating energy, thereby reducing the risk of severe head and cervical injuries.

Problems solved by technology

Radial impact can cause linear acceleration of a user's head that may lead to skull fracture and / or traumatic brain injury.

Tangential impact can cause angular acceleration of a user's head that may bring about shear-based injury to brain and / or cervical vertebra.

When being subject to diagonal impact, a human head can have linear acceleration and slew acceleration at the same time, making it more vulnerable to grievous injury, such as cerebral concussion, traumatic brain injury (TBI), subdural hematoma (SDH) and diffuse axonal injury (DAI).

Nevertheless, since these tests are usually designed for radial impact, the existing safety helmets may be good at absorbing radial impact, but are likely to fail to protect their user from impact acting in different directions (especially diagonal impact).

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