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WHEELCHAIR FOOT SENSOR ALARM
专利权人:
Steven Goldmeier
发明人:
Steven Goldmeier
申请号:
US16676191
公开号:
US20200138338A1
申请日:
2019.11.06
申请国别(地区):
US
年份:
2020
代理人:
摘要:
A foot sensor alarm for wheelchairs, detects if a wheelchair occupant's foot has fallen off of a wheelchair footrest. The sensor and alarm make a wheelchair occupant or care giver aware that a foot has fallen off of one or more of the footrests. Sensors may include contact closure sensors, with snap-action switches or magnetically actuated reed switches can be used. Battery-operated window alarms with piezoelectric sound emitters send out vibratory or audio sounds as alarms. An occupancy sensor seat pad is used to power up the alarm system. A flashing light emitting diode can be wired in parallel with each sound emitter to provide a visual alarm as well.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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