Title:
SMALL-SIZED BICYCLE
Document Type and Number:
WIPO Patent Application WO/2017/043792
Kind Code:
A1
Abstract:
The present invention relates to a small-sized bicycle and, more particularly, to a highly functional small-sized bicycle which can be conveniently carried and transported by having a front wheel and a rear wheel which are small-sized wheels; which performs accelerated rotation, when pedals are stepped on, by means of power transfer of a transmission; and which can effectively deal with irregular obstructions on the road by having the front wheel, in which a plurality of wheels form a group, be installed on the front side thereof. The aforesaid features of the present invention can be achieved by a small-sized bicycle in which: a first frame (20) perpendicularly mounted in front of a horizontal support frame (10) has branch pipes (21) which are formed on the lower portion thereof and branch to both sides; a bracket (41) having radial blades is mounted between the branch pipes (21) and are installed to be rotatable by a shaft (41a); a plurality of wheels are mounted in the respective blades of the bracket (41) and form a group, thereby forming a front wheel (40); a front sprocket (61) is mounted in the center of the support frame (10) so as to be rotated by pedals (61a); a rear sprocket (62) fixed to a drive shaft (71a) of a transmission (70) mounted behind the support frame (10) is connected to the front sprocket (61) by a chain (63) such that power is transferred; a rear wheel (50) is mounted on a driven shaft (73a) of the transmission (70) so as to perform accelerated rotation; a saddle (31) is fixed to the top of a second frame (30) which is vertically mounted behind the support frame (10); and a handle frame (22) is fixed to the top of the first frame (20).
Inventors:
CHO BYUNGKWAN (KR)
CHO BYUNGKWAN (KR)
CHO BYUNGKWAN (KR)
Application Number:
PCT/KR2016/009530
Publication Date:
March 16, 2017
Filing Date:
August 26, 2016
Export Citation:
Assignee:
CHO BYUNGKWAN (KR)
International Classes:
B62K3/00; B60B11/00; B62M9/02; B62M11/06; F16H55/30
Foreign References:
| JP2008290586A | 2008-12-04 | |||
| KR200406949Y1 | 2006-01-23 | |||
| KR200263890Y1 | 2002-02-19 | |||
| KR20080000102U | 2008-01-24 | |||
| KR101379916B1 | 2014-04-14 |
Attorney, Agent or Firm:
PARK, Jongbae (KR)
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