发明名称 Street crossing signal device for blind persons
摘要 A street crossing signal device for blind pedestrians. The device indicates the directions of pedestrian crosswalks at an intersection, so that the blind person can orient himself in a desired direction for crossing the street at one of the crosswalks, and provides a signal to that person when that crosswalk is safe for pedestrian crossing. The device comprises a pair of rigid hand rails secured to a post at the corner of the intersection, each hand rail having at least a portion thereof oriented in the direction of a corresponding crosswalk. The device further comprises a vibrator means which is secured within each hand rail. The vibrator means when actuated causes its associated hand rail to vibrate. Also provided is means to mechanically isolate each hand rail from the post so that vibrations from the hand rails are not transmitted to the post. Electric circuit means associated with traffic control lights at the crossing are also provided, so that when the lights at the crosswalk are in a designation inviting pedestrian crossing, the vibration means for the particular hand rail having a portion oriented in the direction of that crosswalk is actuated.
申请公布号 US4590474(A) 申请公布日期 1986.05.20
申请号 US19830476490 申请日期 1983.03.18
申请人 PATTERSON, DAVID G.;PATTERSON, ALBERT W. 发明人 PATTERSON, DAVID G.;PATTERSON, ALBERT W.
分类号 G08G1/005;G09B21/00;(IPC1-7):G08G1/095 主分类号 G08G1/005
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