Title:
SUNSHADE APPARATUS AUTOMATICALLY STRETCHING AND SHRINKING BY USING POSITIVE AND NEGATIVE AIR PRESSURE
Document Type and Number:
WIPO Patent Application WO/2015/158192
Kind Code:
A1
Abstract:
A sunshade apparatus automatically stretching and shrinking by using positive and negative air pressure comprises a sunshade cover (100), an air source (200) located in a middle position of the sunshade cover (100) and a chassis (300) supporting the air source (200). The sunshade cover (100) comprises sunshade cloth (101) and multiple soft tubes (102) integrally connected to the sunshade cloth (101) and allowing airflows to pass. The air source (200) comprises a power supply (201), an electrically controlled valve unit, a one-way valve (203), an electrically powered pump (204), a sealed air tank (205) and multiple air guide pipes. The electrically powered pump (204) inflates the tubes (102), thereby driving the sunshade cloth (101) to open, and implementing a stretching operation. The electrically powered pump (204) deflates the tubes (102), making the tubes to shrink towards the air source (200) in the middle position until all tubes are folded in the chassis (300). The entire sunshade apparatus is simple and refined in an inflation structure, low in costs, and convenient and reliable to use.
Inventors:
WANG SUYUAN (CN)
Application Number:
PCT/CN2015/074597
Publication Date:
October 22, 2015
Filing Date:
March 19, 2015
Export Citation:
Assignee:
WANG SUYUAN (CN)
International Classes:
B60J11/04; A45B19/02
Domestic Patent References:
| WO2007099384A1 | 2007-09-07 |
Foreign References:
| CN103963619A | 2014-08-06 | |||
| CN203793097U | 2014-08-27 | |||
| CN101237789A | 2008-08-06 | |||
| JP2013014309A | 2013-01-24 | |||
| CN201816440U | 2011-05-04 |
Attorney, Agent or Firm:
SBZL IP LAW OFFICE (CN)
北京商专永信知识产权代理事务所（普通合伙） (CN)
北京商专永信知识产权代理事务所（普通合伙） (CN)
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