Invention Grant
US08191922B2 Drop-bed trailer 有权
拖车拖车

Drop-bed trailer
Abstract:
An improved drop-bed trailer provides a trailer without ramps that lowers to the ground, enabling one person to load/offload motorcycles, etc. A trailer frame with independently pivotal elongated members on each side of the frame, a wheel on each elongated member. A rubber spring or steel coil spring suspension system on the end of each elongated member. A winch and cable pulley system connected to each end of the elongated members via cable connector fitting through the two snap-in bushings. Cable retrieval upon the winch causes the elongated members to be drawn parallel to the frame in raised locked position. A cable tension device keeps the primary cable uniformly coiled upon the winch while providing slack to the secondary cable for complete compression of the suspension system. A safety restrictor device is mounted to the trailer frame to limit the pivotal movement of the elongated members in the event of a cable mechanism failure.
Public/Granted literature
Information query
IPC分类:
B 作业;运输
B62 无轨陆用车辆
B62D 机动车;挂车(农用机械或机具的转向机构或在所要求轨道上的引导装置入A01B69/00;车轮,脚轮,车轴,提高车轮的附着力入B60B;车用轮胎,轮胎充气或轮胎的更换入B60C;拖有挂车的牵引车或类似车辆之间的连接入B60D;轨道和道路两用车辆,两栖或可转换的车辆入B60F;悬架装置的配置入B60G;加热、冷却、通风或其他空气处理设备入B60H;车窗,挡风玻璃,非固定车顶,门或类似装置,车辆不用时的护套入B60J;动力装置的布置,辅助驱动装置,传动装置,控制机构,仪表或仪表板入B60K;电动车辆的电力装备或动力装置入B60L;电动车辆的电源线入B60M;其他类目不包含的乘客用设备入B60N;适用于货运或装载特殊货物或物体的入B60P;用于一般车辆信号或照明装置的布置,其安装或支承或者其电路入B60Q;其他类目不包含的车辆,车辆配件或车辆部件入B60R;其他类目不包含的保养,清洗,修理,支承,举升或调试入B60S;制动器布置,制动控制系统或其部件入B60T;气垫车入B60V;摩托车及其所用附件入B62J,B62K;车辆试验入G01M)
B62D33/00 载货车的上部结构(其中承载构件是活动的入B60P;衬垫入B60R13/00)
B62D33/077 .以上部结构与车架的连接为特征的
B62D33/10 ..包括上部结构在车架上的悬挂装置
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