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    • 53. 发明授权
    • Helmet with two-way radio communication faculty
    • 用双向无线电通信教师的头盔
    • US4833726A
    • 1989-05-23
    • US20954
    • 1987-03-02
    • Katsuro ShinodaToshiyuki KawaguchiHiroyuki KatsukawaNaoki Tanaka
    • Katsuro ShinodaToshiyuki KawaguchiHiroyuki KatsukawaNaoki Tanaka
    • A42B3/30H01Q1/27
    • A42B3/30H01Q1/276H04B2001/3866
    • A helmet with two-way radio communication faculty including a cap-like outer shell made of hard and electrically insulating plastic material, a cap-like shock absorbing member arranged within the outer shell, an ear-pad member secured to one side edge of the outer shell, a transmitter unit arranged in a top recess formed in an outer surface of the shock absorbing member at its top portion, a receiver unit arranged on an inner surface of the ear-pad member, a battery unit arranged in a side recess formed in the outer surface of the shock absorbing member at its side which is opposite to a side on which the ear-pad member is secured to the outer shell, a transmitting dipole antenna made of a metal foil secured on an inner surface of the outer shell at its one side with the aid of an electrically insulating adhesive tape, and a receiving dipole antenna made of a metal foil secured on the inner surface of the outer shell at its other side with the aid of an electrically insulating adhesive tape.
    • 一种具有双向无线电通信系统的头盔,包括由硬且电绝缘的塑料材料制成的帽状外壳,布置在外壳内的帽状缓冲构件,固定到所述外壳的一个侧边缘的耳垫构件 外壳,布置在形成在其顶部的冲击吸收构件的外表面的顶部凹部中的发射器单元,布置在耳垫构件的内表面上的接收器单元,布置在形成的侧凹部中的电池单元 在冲击吸收构件的与耳垫构件固定到外壳的一侧相对的一侧的外表面中,由固定在外壳的内表面上的金属箔制成的透射偶极天线 在其一侧借助于电绝缘胶带和由金属箔制成的接收偶极天线,其通过电绝缘粘合剂固定在外壳的内表面上 胶带。