Abstract: A headrest for simple-structured seat is provided. The headrest includes at least one pair of bar receivers and at least one pillow. Each of the bar receivers includes two wing portions and defines an insertion hole between the wing portions. The wing portions are provided with a plurality of fixing holes via which screws may be threaded into a rear side of a back of the seat so as to connect the bar receivers to the back of the seat. The pillow includes at least one pair of elastic bars downward projected therefrom for inserting into the insertion holes defined by the bar receivers on the back of the seat. The elastic bars automatically extend outward to tightly press against inner walls of the insertion holes and thereby firmly hold the pillow of the headrest to the back of the seat. The headrest may be easily installed on a seat for all kinds of vehicles.

Abstract: A fast-dismountable covering panel for mounting on a chassis of an electric cart is provided. The covering panel includes a front round opening and a rearward opened elongate opening opposite to the round opening. The elongate opening is adapted to engage with a handlebar stem upward extended from a front end of the chassis. A very narrow slit is provided along a centerline of the covering panel to extend between the round opening and the elongate opening, allowing the covering panel to be elastically stretched apart at the elongate opening along the slit for the handlebar stem to move forward along the slit into the round opening and causing the covering panel to cover and be screwed to a top of the chassis. A gasket is removably engaged with the slit to seal the same. Footrest panel, mat fixing strips and mat may be detachably connected to the covering panel and the covering panel may be mounted onto the chassis after the latter has been fully assembled and passed quality inspection.