Title:
SKATEBOARD
Document Type and Number:
WIPO Patent Application WO/2010/018921
Kind Code:
A2
Abstract:
The present invention relates to a skateboard having two separate propeller shafts, i.e. first and second propeller shafts, inside a hollow cover interposed between a front board and a rear board to enable a dynamic expand-contract motion in a linear direction by the cam operation. In one embodiment of the present invention, a skateboard comprises front and rear boards locked to each other with a distance therebetween, and casters installed on the bottom faces of the boards, respectively, wherein a hollow cover is insertedly installed in assembling holes of the housing formed on the bottom faces of the front and rear boards and includes therein a first propeller shaft insertedly fastened within the assembling hole in the front board and a second propeller shaft insertedly fastened within the assembling hole in the rear board, with the first and second propeller shafts being connected by a joint of an interactive cam shape. Accordingly, the first and second propeller shafts can expand and contract dynamically in a linear direction during the rolling motion of the front and rear boards.
Inventors:
YOON EEM SIK (KR)
Application Number:
PCT/KR2009/002975
Publication Date:
February 18, 2010
Filing Date:
June 04, 2009
Export Citation:
Assignee:
YOON EEM SIK (KR)
International Classes:
A63C17/01
Foreign References:
KR200400315Y1 | 2005-11-04 | |||
KR20060028948A | 2006-04-04 | |||
KR100711650B1 | 2007-04-27 |
Attorney, Agent or Firm:
YOON YANG KIM SHIN & YU (KR)
특허법인 화우 (KR)
특허법인 화우 (KR)
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