Title:
FRAME STRUCTURE FOR AN UMBRELLA-TYPE AUTOMATIC TENT
Document Type and Number:
WIPO Patent Application WO/2011/081312
Kind Code:
A2
Abstract:
The present invention relates to a frame structure for adjusting the tension of an umbrella-type automatic tent. The frame structure comprises a hollow center cylinder, a plurality of main poles, a support pole, and a slidable cylinder, wherein the frame structure further comprises: a screw shaft rotatably installed in the slidable cylinder to adjust the tension of a tent fabric; a nut that is movable according to the rotation of the screw shaft installed in the slidable cylinder; a support enabling the screw shaft to enter an upper part of the center cylinder, but preventing a lower end of the screw shaft from leaving the upper part of the center cylinder; and an elastic member installed between the nut and the support to apply a lifting force to the slidable cylinder.
Inventors:
JANG, Jung-suk (Jugong APT, #57 30/5 Hwigyeong-dong Dongdaemun-gu, Seoul 130-090, 130-090, KR)
Application Number:
KR2010/008691
Publication Date:
July 07, 2011
Filing Date:
December 07, 2010
Export Citation:
Assignee:
JANG, Jung-suk (Jugong APT, #57 30/5 Hwigyeong-dong Dongdaemun-gu, Seoul 130-090, 130-090, KR)
International Classes:
E04H15/28; E04H15/44
Attorney, Agent or Firm:
KIM, Seok-yun (RM.202 Hwain B/D, #824-29 Yoksam-dong Kangnam-gu, Seoul 135-080, 135-080, KR)