Auxiliary wheel holder for golf carts

• US 6,059,300 A
• Filed: 07/29/1998
• Issued: 05/09/2000
• Est. Priority Date: 07/29/1998
• Status: Expired due to Fees

• Current Assignee: David Wu
• Original Assignee: David Wu
• Inventors: Wu, David
• Primary Examiner(s): Mai, Lanna
• Assistant Examiner(s): Ilan, Ruth
• Application Number:
  US09/124,506
• Time in Patent Office: 650 Days
• Field of Search: 280/47.2, 280/DIG. 6, 280/47.26, 280/767, 248/229.1, 248/229.12, 248/229.14, 248/228.3, 248/228.5, 248/231.41, 248/231.21, 248/316.2, 248/316.4, 248/70, 248/292.12, 248/298.1, 403/DIG. 9, 403/3, 403/4, 403/373, 301/111, 301/114
• US Class Current: 280/47.2
• CPC Class Codes: B62B 1/002 convertible from a one-axled vehicle to a two-axled vehicle
• CPC Class Codes: B62B 1/08 having auxiliary wheels used during loading or unloading
• CPC Class Codes: B62B 2202/404 Golf articles, e.g. golfbags
• CPC Class Codes: Y10S 280/06 Wheeled golf club carriers

Abstract

An auxiliary wheel holder includes a base frame secured to the main rod member of a golf cart at the bottom to hold a wheel axle and a pair of auxiliary wheels at two opposite ends of the wheel axle, enabling the golf cart to be moved on the ground when the golf cart is extended out, a locating plate fastened to two upright screw rods of the base frame by lock nuts and closely attached to the main rod member of the golf cart at the top to secure the base frame to the main rod member of the golf cart, and two beveled packing blocks respectively mounted on the upright screw rods of the base frame and engaged between the base frame and the bottom side wall of the main rod member of the golf cart to fix base frame in position.

Claims

1. An auxiliary wheel holder fastened to the main rod member of a golf cart to hold a wheel axle and a pair of auxiliary wheels at two opposite ends of said wheel axle, enabling the golf cart to be moved on the ground when the golf cart is extended out, the auxiliary wheel holder comprising:

a base frame coupled to the main rod member of the golf cart at a bottom side, said base frame comprising an elongated top coupling groove at a top side wall thereof, two elongated top flanges respectively raised from the top side wall at two opposite sides of said elongated top coupling groove, two positioning means provided within said elongated top coupling groove at two opposite sides between said elongated top flanges, said positioning means each comprised of a plurality of transverse teeth arranged in parallel between said elongated top flanges, and two upright screw rods respectively raised from said positioning means;

two packing blocks respectively mounted on said upright screw rods and retained between said base frame and the periphery of the main rod member of the golf cart, said packing blocks each comprising a block body having a beveled top side wall stopped against the periphery of the main rod member of the golf cart, a transverse coupling flange raised from a flat bottom side wall of said block body on the middle and engaged into the top coupling groove of said base frame, a plurality of transverse teeth integral with said transverse coupling flange and meshed with the transverse teeth of the positioning means of said base frame, and a transversely extended elongated slot pierced through said transverse coupling flange and said block body on the middle for receiving the upright screw rods of said base frame;

a locating plate fastened to the upright screw rods of said base frame and attached to the main rod member of the golf cart at a top side to secure said base frame and said packing blocks to the main rod member of the golf cart, said locating plate comprising two countersunk holes, which receive the upright screw rods of said base frame respectively, and a flat, elongated positioning block transversely raised from a bottom side wall thereof on the middle and stopped against the periphery of the main rod member of the golf cart, the elongated positioning block of said locating plate having a locating groove extended on the middle to both ends thereof, the locating groove of the elongated positioning block of said locating plate having a smoothly arched cross section; and

two lock nuts respectively threaded onto the upright screw rods of said base frame and mounted in the countersunk holes on said locating plate at a top side to secure said base frame to the main rod member of the golf cart.

2. The auxiliary wheel holder of claim 1 wherein said packing blocks each have a plurality of anti-skid positioning grooves longitudinally arranged in parallel at the beveled top said wall of the respective block body.