Title:
SHOCK ABSORBING CYLINDER DEVICE AND CULTIVATOR PROVIDED WITH PLURALITY OF SAME
Document Type and Number:
WIPO Patent Application WO/2021/100961
Kind Code:
A1
Abstract:
Disclosed is a shock absorbing cylinder device of a cultivator, wherein both ends of the shock absorbing cylinder device are connected to a main frame connected to a plowing part and a tractor. The disclosed shock absorbing cylinder device comprises: a piston part of which one end is hinge-coupled to the plowing part; and a cylinder part which is filled on the inside with oil and into which a portion of the piston part is slidably inserted. The inside of the cylinder part includes a first section having a first inner diameter and a second section having an inner diameter greater than the first inner diameter. The piston part is provided with a piston head having an outer diameter smaller than the first inner diameter.
Inventors:
PARK KI HYUK (KR)
Application Number:
PCT/KR2019/017426
Publication Date:
May 27, 2021
Filing Date:
December 11, 2019
Export Citation:
Assignee:
PARK KI HYUK (KR)
International Classes:
A01B3/24; A01B15/14; A01B15/20; F16F9/19; F16F9/32
Foreign References:
| KR20190064385A | 2019-06-10 | |||
| KR100520112B1 | 2005-10-11 | |||
| KR101117769B1 | 2012-03-21 | |||
| US20180054955A1 | 2018-03-01 | |||
| US20120292059A1 | 2012-11-22 |
Attorney, Agent or Firm:
WON, Eun Sup (KR)
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