专利名称：TRAILER COUPLER LOCKING DEVICE发明人：Guoji Yuan申请号：US14530742申请日：20141101
公开号：US20150123379A1公开日：20150507
专利附图：
摘要：A locking device for obstructing towing of a trailer has a lock base and a lockbracket. The lock base has an upright ball-shaped member and two legs each with anaperture. The lock bracket has two arms. When the locking device is in a locked condition,both arms are engaged in their corresponding apertures. When the locking device is in an
unlocked condition, one arm of the lock bracket remains attached to its correspondingaperture, and the other arm is removed from the other aperture to release the coupler.Grooves on one of the arms allow a locking means to engage with the lock bracket atdifferent height. In another aspect of the invention, the ball member is detachable andcan be replaced by different sized ball member so that the same locking device can beused on trailer couplers with different socket sizes.
申请人：Guoji Yuan
地址：Foshan CN
国籍：CN
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