Title:
DOUBLE-WHEEL SKATEBOARD WITH DRIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/057363
Kind Code:
A1
Abstract:
A double-wheel skateboard with a driving device includes a board body (3), a front wheel (4) and a rear wheel (2) with rim. The front wheel (4) is fixed on the board body (3), and the relative position of the rear wheel (2) and the board body (3) is kept unchanged through a rear wheel positioning device (18). The rear wheel positioning device (18) comprises a frame fixed on a mounted board (9) as well as an upper locating plate (7) and a lower locating plate (8). Four pulleys (5) of two groups are symmetrically distributed on the upper locating plate (7), and six pulleys (5) of three groups are symmetrically distributed on the lower locating plate (8). Outer sides of the pulleys (5) can just limit the left edge and the right edge of a circular rim of the rear wheel (2), and a circle of driving teeth (15) is arranged in the middle of the rim of the rear wheel (2) circularly. A rack (12) driven by a pedal drives a pinion in a gear set A (13) with a ratchet wheel, a bull wheel in the gear set A (13) drives a pinion in a gear set B (14), and a bull wheel in the gear set B (14) drives the gear in the middle of the rim of the rear wheel (2) to make the rear wheel (2) to rotate forward.
Inventors:
JIN QINONG (CN)
JIN JIAN (CN)
JIN JIAN (CN)
Application Number:
PCT/CN2009/001267
Publication Date:
May 27, 2010
Filing Date:
November 16, 2009
Export Citation:
Assignee:
SHANGHAI HI TECH ROBOT CO LTD (CN)
JIN QINONG (CN)
JIN JIAN (CN)
JIN QINONG (CN)
JIN JIAN (CN)
International Classes:
A63C17/00; A63C17/12; B62M1/00
Foreign References:
| CN101406742A | 2009-04-15 | |||
| CN2546321Y | 2003-04-23 | |||
| CN1970122A | 2007-05-30 | |||
| CN2305233Y | 1999-01-27 | |||
| US6079727A | 2000-06-27 | |||
| JPH08164234A | 1996-06-25 |
Attorney, Agent or Firm:
SHANGHAI XIN TIAN PATENT AGENT CO., LTD. (No.59 Nan Chang Road, Shanghai 0, CN)
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