Abstract: A golf cart folding frame assembly includes a folding frame bar mounting structure and a telescopic drag bar mounting structure. The folding frame bar mounting structure includes a first connecting frame mounted on the rear end of a frame bar and having inner and outer locating notches on two opposite, arched side walls thereof, a second connecting frame mounted on the front end of a frame member and having two sliding slots on two opposite side walls thereof, a locating device having two locating rods inserted into the sliding slots and controlled by a spring supported control knob to alterantively engage into the inner or outer locating notches so as to lock the fold frame bar mounting structure in the operative or collapsed position.

Abstract: A telescopic and folding frame assembly includes a folding frame bar mounting structure ana a telescopic drag bar mounting structure. The folding frame bar mounting structure includes a frame member having a spaced golf bag cradle for carrying a golf bag with clubs and a bracket to hold a pair of ground supporting wheels by two side beams and a pair of links, and an elongated frame bar having a front end coupled to a drag bar by the telescopic drag bar mounting structure, a rear end coupled with a locking plate hinged to the frame member adjacent to a front connecting rod thereof, wherein a locking plate is pivotably mounted on the elongated frame bar and retained by a spring and stopped by a stop plate to lock the front connecting rod of the frame member to the elongated frame bar in the operative position, each link pivotably interconnects either side wall on the connecting plate and either side beam at a mid portion thereof.

Abstract: A telescopic and folding frame assembly includes a folding frame bar mounting structure and a telescopic drag bar mounting structure. The folding frame bar mounting structure includes a frame member having two spaced golf bag cradles for carrying a golf bag with clubs and a bracket to hold a pair of ground supporting wheels by two side beams and a pair of links, and an elongated frame bar having a front end coupled to a drag bar by the telescopic drag bar mounting structure, a middle part coupled with a scoreboard and a rear end coupled with a locking plate hinged to the frame member adjacent to a front connecting rod thereof, wherein a locking plate is pivotably mounted on the elongated frame bar and retained by a spring and stopped by a stop plate to lock the front connecting rod of the frame member to the elongated frame bar in the operative position; each link pivotably interconnects either side wall on the connecting plate and either side beam at a mid portion thereof.

Abstract: A saddle mounting structure comprising a connector for connecting a saddle to a golf cart's main frame, two symmetrical locating blocks for connecting said connector to the pillar of the saddle by a screw and a lock nut, two fastening plates for connecting the connector to the golf cart's main frame by a second screw. The connector has raised strips radially made on the outer wall surface alternatively engaged in a plurality of radial grooves on one symmetrical locating block for adjusting the angular position of the saddle relative to the golf cart's main frame.

Abstract: A golf cart wheel axle assembly having a holder plate connected to the frame of a golf cart to hold a wheel axle by a lock screw, wherein the wheel axle has a tapered rod and a rectangular block longitudinally aligned and respectively inserted into a taper hole and a rectangular hole on the holder plate; the lock screw is screwed through the tapered hole into a bolt hole on the tapered rod, having a split circular projection engaged into an annular groove inside the tapered hole.

Abstract: A golf bag mounting structure comprising a loop-like top panel detachably secured to a golf cart's main frame by a connector, a cap-like bottom panel having a side frame detachably secured to the golf cart's main frame, and an intermediate panel detachably connected between the top and bottom panels and incorporated therewith forming into a golf bag. The intermediate panel is made from a rectangular sheet of flexible material having two opposite end edges connected together by a zip fastener and two opposite side edges respectively connected to the top and bottom panels by two zip fasteners.

Abstract: A golf cart wheel frame mounting structure comprising a wheel frame holder secured to a golf cart's main frame by a mounting plate, a pressure plate and a lock screw; a shaft fastened in the wheel frame holder at the bottom to hold a pair of left-hand wheel frames and a pair of right-hand wheel frames permitting the left-hand and right-hand wheel frames to be pivoted thereto; two wheel holders pivotably secured to the left-hand and right-hand wheel frames at the bottom for holding two wheels; and a foldable frame having two opposite ends pivotably secured to one of said left-hand wheel frames and one of the right-hand wheel frames. Through the foldable frame, the wheel frames are closed together. By rotating the shaft through 90.degree. angle, the wheel frames, the foldable frame, the wheel holders and the wheels are collapsed and closely attached to the golf cart's main frame.

Abstract: A golf cart score board and handlebar angular position adjusting structure, comprising a screw rod fastened with a lock nut to secure a handlebar and a score board to a connecting rod which is fixedly fastened in a golf cart's main frame. The handlebar and the score board have each a toothed portion engaged with the toothed portion at either side of the connecting rod with a helical spring each set therebetween. Therefore, the handlebar and the score board can be adjusted to a desired angle relative to the connecting rod and the golf cart's main frame by loosening the lock nut from the screw rod and then fastening it tight.