Vehicle safety headrest

Abstract

The invention discloses an active safety pillow device for an automobile, which comprises a height adjusting mechanism and a safety mechanism, wherein the height adjusting mechanism is provided with a horizontal supporting rod, and a vertical supporting rod and a vertical height adjusting rod which are fixed with the horizontal supporting rod, and a revolving mechanism of the height adjusting mechanism is arranged on the horizontal supporting rod and can rotate relative to the height adjusting mechanism; the safety mechanism is arranged on the revolving mechanism, can rotate along with the revolving mechanism, and is provided with a framework and a ratchet mechanism arranged in the framework; and the ratchet mechanism comprises a pawl supported on the framework and a ratchet wheel which is fixed with the revolving mechanism, and pawl teeth on the pawl and ratchets on the ratchet wheel can be engaged or disengaged mutually. The device can effectively protect head and neck when a car accident occurs, and adjust a pillow to a position where a passenger feels comfortable according to requirements of a human body. Through the revolving mechanism and the framework safety mechanism, the pillow can ensure that the pillow closely contacts the head and neck of the passenger and generates the follow-up supporting force on the head and neck when the automobile is crushed so as to protect the head and neck from damage.

Description

technical field [0001] The invention relates to a device for vehicle passengers, in particular to a headrest device suitable for a vehicle seat. Background technique [0002] As we all know, it is very easy to cause head-neck injuries to drivers and passengers in car collision accidents. Due to the strong bending and pulling of the neck, the head collides back and forth, resulting in cervical spine injuries and concussions. If the passenger's head isn't twisted violently from the torso, even if the car gets hit hard, the passenger's neck won't be injured. Thus, neck injuries caused by severe misalignment between the head and torso are the leading cause of most head-neck injuries. [0003] Neck sprains are the most frequent auto insurance claims in the United States. In 1997, 66% of bodily injury claims and 59% of protection claims—the two most important types of insurance claims—reported minor neck injuries; 42% of bodily injury claimants and 36% of protection claims Neck...

AI Technical Summary

Problems solved by technology

In addition, the height of the device of CN101121386A cannot be adjusted, and it already has congenital defects, and the operation path is too long, involving many parts, and the response speed and reliability are insufficient; the structure of the four-bar linkage mechanism of GN101318480A is too complicated. Using a similar structure is an old technology, and the safety and reliability of the use are poor. European, American and Japanese automobile companies have not adopted this structure.

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