US 2003/0197344 A1 · Mini scooter

Abstract

A mini scooter includes a wheel member, a wheel support member, a steering rod, a steering rod support, a wheel cover plate, and a pedal. The wheel member includes a wheel with a transmission ring in the center, and a unidirectional rotary bearing, a pivot shaft of which serves as a wheel axle. Two ends of the wheel axle are respectively provided with cover plates. The cover plates are connected to the transmission ring. The wheel support member includes a wheel support with a top portion having a through hole and having an inverted U-shaped cross section. Securing bolts extend through through holes in the wheel support and engage with nuts. Two ends of the bearing pivot shaft are provided with axle bearings. Two sides of the wheel support respectively form circular holes for receiving the axle bearings. The wheel cover plate is disposed on and secured to the securing bolts in the through holes in the wheel support. The wheel cover plate has a top portion provided with front and rear stop blocks. A rear end of the wheel cover plate is connected to the pedal. The steering rod support includes a steering rod upper support and two steering rod side supports connected to two ends of the wheel axle and disposed on outer sides of the wheel support. Two steering rod side supports are respectively connected to the steering rod upper support. The steering rod is secured on a top portion of the steering rod upper support at a middle position such that when the steering rod swings forward and rearward, the swinging angles are limited within a range defined by the front and rear stop blocks.

Drawings

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Drawings

Claims11

Dependent claims

A mini scooter comprising:

a wheel member, a wheel support member, a steering rod, a steering rod support, a wheel cover plate, and a pedal, wherein:
the wheel member includes a wheel with a transmission ring in the center, a unidirectional rotary bearing, a pivot shaft of said unidirectional rotary bearing serving as a wheel axle, two ends of said wheel axle being respectively provided with cover plates, said cover plates being further connected to said transmission ring;
said wheel support member including a wheel support with a top portion having a through hole and having an inverted U-shaped cross section, securing bolts extending through holes in said wheel support and engaging with nuts, two ends of said bearing pivot shaft being provided with axle bearings, two sides of said wheel support respectively forming circular holes for receiving said axle bearings;
said wheel cover plate being disposed on and secured to said securing bolts in said through holes in said wheel support, said wheel cover plate having a top portion provided with front and rear stop blocks, a rear end of said wheel cover plate being connected to said pedal;
said steering rod support including a steering rod upper support and two steering rod side supports connected to two ends of said wheel axle and disposed on outer sides of said wheel support, two steering rod side supports being respectively connected to said steering rod upper support;
said steering rod being secured on a top portion of said steering rod upper support at a middle position such that when said steering rod swings forward and rearward, the swinging angles are limited within a range defined by said front and rear stop blocks.

3 more elements

Dependencies are inferred from the claim text.

Description3,603 words

Summary189 words

#(a) Field of the Invention:

#The present invention relates to a mini scooter.

#(b) Description of the Prior Art:

Brief description of the drawings37 figures

#The foregoing and other features and advantages of the present invention will be more clearly understood from the following detailed description and the accompanying drawings, in which,

#FIG. 1 is a schematic perspective view of the present invention;

#FIG. 2 is an exploded view of major components of a unidirectional rotary bearing body of the present invention;

Detailed description2,702 words

#With reference to the drawings, the mini scooter according to the invention includes a wheel member A, a wheel support member B, a steering rod 25, a steering rod support C, a wheel cover plate 21, and a pedal 22.

#As shown in FIGS. 1 to 8, the wheel member A includes a wheel 3 having a transmission ring 5 in the center thereof, a wheel axle 4 which is also a pivot shaft of a unidirectional rotary bearing, two cover plates fitted at both ends of the wheel axle 4 respectively. The cover plates 2 are coupled to the transmission ring 5 via securing bolts 1.

#As shown in FIGS. 9 and 10, the wheel support member B includes a wheel support 12 having a through hole in its top portion and an inverted U-shaped cross section, a securing bolt 13 extending through the through hole in the wheel support 12, a balls 11 disposed between the through hole in the wheel support 12 and the securing bolt 13, a ball cover plate 10 sleeved on the securing bolt 13 and disposed above the wheel support 12, a nut 9 threadedly engaging the securing bolt 13 for coupling the wheel support 12, the balls 1 1 and the ball cover plate 10. As shown in FIGS. 11, 12 and 13, the bearing pivot shaft, i.e., the wheel axle 4, has two ends respectively provided with axle bearings 14. Two lateral bottom portions of the wheel support 12 are respectively provided with curved recesses. Two securing plates 15 with curved recesses are secured respectively to the lateral bottom portions via securing bolts 16. The curved recesses at the two lateral sides of the wheel support and the curved recesses on the securing plates together form circular holes for receiving the axle bearings 14, respectively.

Mini scooter

Life of this patent

Mini scooter

Life of this patent

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims11

Description3,603 words

Drawings

Description3,603 words

Classification5 codes