Title:
INTERLOCKING DEVICE FOR A HEAD UNIT OF A TRICYCLE
Document Type and Number:
WIPO Patent Application WO/2011/096751
Kind Code:
A3
Abstract:
The present invention relates to an interlocking device for a head unit of a tricycle. The technical solution to be provided by the present invention is allowing a front unit of a tricycle to have a two-wheel interlocking structure, thus improving stability, reducing the area of the entire tricycle and the space used by the tricycle, enabling the tricycle to turn a corner in a convenient and non-sliding manner, simplifying the structure and reducing costs. For this purpose, the interlocking device for a head unit of a tricycle comprises: a first wheel (10); a second wheel (20) spaced apart from the first wheel (10); a first suspension unit (30) the lower end of which has a side portion pin-coupled to the first wheel (10) to support the first wheel (10) such that the first wheel (10) is rotatable, and which buffers shock transmitted from the first wheel (10); a second suspension unit (40) which has lower end with a side portion pin-coupled to the second wheel (20) to support the second wheel (20) such that the second wheel (20) is rotatable, and which buffers shock transmitted from the second wheel (20); a chassis (50) having a top on which a handle stem is protruded; a center suspension link (60) which is formed into an H-shaped plate, and which has a center and both ends with respective pin holes; a second suspension link (70) which has two links arranged in parallel with each other, wherein both ends of the links are pin-coupled, and one of the pins which interconnect ends of the links has a protrusion coupled to the top of the center of the center suspension link (60); a third suspension link (80) which has two links arranged in parallel with each other, wherein both ends of the links are pin-coupled, and one of the pins which interconnect ends of the links has a protrusion coupled to the bottom of the center of the center suspension link (60); a first suspension support (90) which is pin-coupled to one end of the center suspension link (60) and pin-coupled to one end of the second suspension link (70); and a second suspension support (100) which is pin-coupled to the other end of the center suspension link (60) and pin-coupled to one end of the third suspension link (80).
Inventors:
KIM DOO JEONG (KR)
Application Number:
PCT/KR2011/000756
Publication Date:
November 10, 2011
Filing Date:
February 02, 2011
Export Citation:
Assignee:
KIM DOO JEONG (KR)
International Classes:
B62K5/04; B62K5/05; B62K5/08; B62K21/14; B62K25/08; B62K5/00
Foreign References:
| US4740004A | 1988-04-26 | |||
| JPH0640204A | 1994-02-15 | |||
| KR20030047109A | 2003-06-18 | |||
| JPH037093B2 | 1991-01-31 | |||
| JP2008132933A | 2008-06-12 | |||
| JP2008168893A | 2008-07-24 |
Attorney, Agent or Firm:
KIM, Seong Dae (159-6 donkyo-Don, mapo-Ku Seoul 121-816, KR)
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Claims: