Composite material body for impact absorption and articles comprising the body
AssigneesTopkey Corporation, Xiamen Keentech Composite Technology Co., Ltd.
InventorsChih-Ming Chuang, Wan-Ting Chung, Yen-Ta Lu
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Abstract
A composite material body (10) includes a first material layer (20) and a second material layer (30) overlapping the first material layer (20). The first material layer (20) and the second material layer (30) are wound to form a flexible and circular rod. Impact absorption is effectively improved and impact resisting strength is enhanced because energy-absorber or damping material or its composition is attached into the composite material body (10). Technical characteristics, effects and objects of this invention are achieved thereby.
Claims4
A composite material body (10) comprising:
- a first material layer (20);
- and
- a second material layer (30) connected to the first material layer (20);
- wherein the first material layer (20) and the second material layer (30) are connected and then wound to make the second material layer (30) to be situated outside the first material layer (20) so as to form a flexible and circular rod whose diameter is between 0.3 mm and 5.0 mm,
- wherein before the first material layer (20) and the second material layer (30) are wound, the first material layer (20) is joined to an edge of the second material layer (30), and
- wherein a proportion of a whole area of the first material layer (20) to that of a sum of the first material layer (20) and the second material layer (30) is between 1:1 and 1:5.
Dependencies are inferred from the claim text.