Safety helmet with rotary impact buffering function
OwnerCheng-Huei Kuinventor
Life of this patent
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Abstract
A safety helmet with a rotary impact buffering function comprises a shell and an elastic liner arranged in the shell, wherein a gap is formed between the shell and the elastic liner, and a rotary impact buffering device enabling the shell to rotate relative to the elastic liner is arranged between the shell and the elastic liner. When the safety helmet is impacted by external force, the shell has the tendency to rotate relative to the elastic liner under the effect of component force applied to the shell in the tangential direction; however, through tangential deformation of the rotary impact buffering device, the shell can rotate relative to the elastic liner by a certain angle on the premise of keeping the elastic liner unmoved, and thus the impact to users from external force is greatly reduced.
Claims9
A safety helmet with a rotary impact buffering function, comprising:
- a shell, comprising an elastic liner arranged in the shell, wherein a gap is formed between the shell and the elastic liner;
- and
- a rotary impact buffering device, enabling the shell to rotate relative to the elastic liner and arranged between the shell and the elastic liner,
- wherein the rotary impact buffering device comprises a plurality of buffering components;
- each buffering component comprises:
- a plastic nail holder, wherein the plastic nail holder is inlaid in an inner side of the shell and provided with an outer step hole with a small-diameter end located at an inner end of the plastic nail holder;
- a columnar elastic washer, wherein the elastic washer is provided with an inner step hole with a small-diameter end located at an outer end of the elastic washer, and an outer end face of the elastic washer is tightly attached to an inner end face of the plastic nail holder;
- and
- a plastic nail, wherein the elastic washer and the plastic nail holder are connected through the plastic nail, and each plastic nail comprises:
- a platen, located in a large-diameter section of the corresponding inner step hole;
- a nail rod, penetrates through a small-diameter section of the corresponding inner step hole and a small-diameter section of the corresponding outer step hole,
- wherein one end of the nail rod is connected with the platen, a diameter of the small-diameter section of the corresponding inner step hole is matched in size with an outer diameter of the nail rod, a diameter of the corresponding small-diameter section of the outer step hole is greater than the outer diameter of the nail rod;
- and
- an anti-disengaging buckle head, located in a large-diameter section of the outer step hole and connected with other end of the nail rod, wherein an inner end face of the elastic washer is connected with the elastic liner.
Dependencies are inferred from the claim text.