Patent ID: 8276922

Claim:
A child trailer, comprising a body, a joint and a coupler, the body including a plurality of wheels at a bottom thereof, the joint being located in front of the body, wherein: the coupler includes a coupling dock, a pair of adjustment arms and a pair of strap holders; the coupling dock being connected to a front end of the joint and including two slide beams at two sides of a front end of the coupling dock; each adjustment arm including a sleeve coupled to one of the two slide beams, an adjustment bar and a pivotal member, the sleeve including an anchor portion extended from one end, the anchor portion including a passage, the adjustment bar including a tube and a latch member held in the tube, the tube running through the passage; the pivotal member being coupled to a front end of the tube and including a round stem and an axle that are extended from one side of the pivotal member; each strap holder including a holder and a fastening member, the holder including one side coupled to a strap with tooth traces and another side comprises an engagement device which includes an engaging portion corresponding to the tooth traces of the strap, the fastening member being located on the holder and including a latch trough to hold an elastic reed and a buffer aperture, the axle of the pivotal member being hinged to the latch trough.