Clutch applied between transmission shaft and wheel of an electric cart

A clutch to be placed between a transmission shaft and a wheel of an electric cart for an easy engagement and disengagement therebetween, comprising:

• (a) a bushing having the shape of a hollow cylinder adapted to be mounted on the transmission shaft, and bushing engaging means for rotationally engaging said bushing with the transmission shaft, said bushing having a first predetermined number of bushing slots on its outer end;
• (b) a hub also having the shape of a hollow cylinder rotatable mounted on said bushing and substantially flush therewith, said hub having a ring-shaped flange with a second predetermined number of through holes for securely mounting a wheel thereto, said hub also having said first predetermined number of hub slots on its outer end which are in respectively radially aligned positions with said bushing slots;
• (c) a collar also having the shape of a hollow cylinder for rotationally engaging said bushing with said hub at their respective outer ends, said collar having said first predetermined number of collar protrusions at its inner end, each of said collar protrusions being dimensioned and positioned so as to closely fit into a respective pair of said bushing and hub slots when said bushing and hub slots are radially aligned, said collar having a cascading inner surface to form a collar shoulder near its inner end;
• and
• (d) a stud for inserting through said collar and securing to the transmission shaft via a screw means, said stud having a stud head wider than said shoulder of said collar shoulder so as to allow a spring to be placed between said stud head and said collar shoulder, whereby said collar is adapted to be slidably affixed to the transmission shaft by a cooperative action among said stud, said screw means, said shoulder and said spring to effectuate an easy engagement/disengagement of said collar protrusions with respect to said bushing and hub slots, and thus an engagement/disengagement between the transmission shaft and said wheel.