# US 2010/0163318 A1 · Golf bag cart > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0163318 A1 - Document ID: US20100163318A1 - Status: Published application - Kind: A1 - Application number: 12/346,541 - Filed: 2008-12-30 - Published: 2010-07-01 - Earliest claimed: 2008-12-30 - Assignees: Macauto Industrial Co., Ltd. - Inventors: Paul Lin - Web page: https://patentgrep.com/patent/US20100163318A1 ## CPC - B62B 3/12: characterised by three-wheeled construction - B62B 3/001: {Steering devices} - B62B 5/0033: {Electric motors} - B60L 2200/30: Trolleys - B62B 5/0053: {Arrangements of batteries} - B62B 2202/404: Golf articles, e.g. golfbags - B62B: HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES (characterised by animal propulsion B62C; propulsion of sledges by driver or engine B62M) - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES ## Abstract A golf bag cart includes a cart unit adapted for placing a golf bag thereon, a rear wheel unit connected to the cart unit, an electrically operable power front wheel unit coupled to the cart unit and disposed forwardly of the rear wheel unit, and an electric drive unit. The power front wheel unit is electrically operable to cooperate with the rear wheel unit for moving the cart unit on a ground surface. The power front wheel unit is coupled rotatably to the cart unit so as to be rotatable relative to the cart unit about a normal axis that is normal to the ground surface, thereby permitting change in direction of movement of the cart unit on the ground surface. The electric drive unit is disposed on the cart unit and is coupled to the power front wheel unit for driving rotation of the power front wheel unit about the normal axis. ## Claims ### Claim 1 A golf bag cart comprising: a cart unit adapted for placing a golf bag thereon; a rear wheel unit connected to said cart unit; an electrically operable power front wheel unit coupled to said cart unit and disposed forwardly of said rear wheel unit, said power front wheel unit being electrically operable to cooperate with said rear wheel unit for moving said cart unit on a ground surface, said power front wheel unit being coupled rotatably to said cart unit so as to be rotatable relative to said cart unit about a normal axis that is normal to the ground surface, thereby permitting change in direction of movement of said cart unit on the ground surface; and an electric drive unit disposed on said cart unit and coupled to said power front wheel unit for driving rotation of said power front wheel unit about the normal axis. ### Claim 2 (depends on 1) The golf bag cart as claimed in claim 1, further comprising a power supply unit provided on said cart unit and electrically coupled to said power front wheel unit and said electric drive unit. ### Claim 3 (depends on 2) The golf bag cart as claimed in claim 2, wherein said cart unit includes a cart frame, and a wheel support mounted on said cart frame and having said power front wheel unit coupled rotatably thereto, said wheel support including a base mounted on said cart frame, and at least one first mounting portion provided on said base, said power supply unit including a power supply body, and at least one second mounting portion disposed on said power supply body for engaging releasably said at least one first mounting portion. ### Claim 4 (depends on 3) The golf bag cart as claimed in claim 3, wherein said wheel support includes two of said first mounting portions, said power supply unit including two of said second mounting portions, each of said first mounting portions being formed with a notch, each of said second mounting portions being formed as a protrusion that engages said notch in a respective one of said first mounting portions. ### Claim 5 (depends on 3) The golf bag cart as claimed in claim 3, wherein said wheel support further includes a pair of spaced-apart first conductive parts provided on said base, and said power supply unit further includes a pair of spaced-apart second conductive parts that are provided on said power supply body for establishing electrical connection with a corresponding one of said first conductive parts. ### Claim 6 (depends on 5) The golf bag cart as claimed in claim 5, wherein each of said first conductive parts is a female part, and each of said second conductive parts is a male part that extends into the corresponding one of said first conductive parts. ### Claim 7 (depends on 1) The golf bag cart as claimed in claim 1, wherein: said power front wheel unit includes a driven gear rotatably retained on said cart unit and rotatable about the normal axis; and said electric drive unit includes a motor with a drive component, a driving gear that meshes with said drive component, and a coupling gear that projects from one side of said driving gear at a position offset from a gear axis of said driving gear and that meshes with said driven gear.