Title:
FOLDABLE LADDER
Document Type and Number:
WIPO Patent Application WO/2022/268222
Kind Code:
A1
Abstract:
A folding ladder comprises two ladder frames rotatably connected by two oppositely arranged frame hinge assemblies（14） at the top; the ladder frames each include two parallel ladder legs（10）; the frame hinge assembly（14） is provided with a balancing member（5）, one end of the balancing member（5） is hinged with one frame hinge assembly（14）, and the other end is connected with another frame hinge assembly（14） in a locking manner; each step（3） comprises hinged left and right step sections, the tops of the two ends of each step are formed with snap-fit notches（9）, so that the steps（3） do not collide with the legs（10） during the rotation process, the steps（3） are in contact with the legs（10） in both the unfolded and folded states, which makes the overall structure compact and has better shockproof effect, which is convenient for the transportation of the whole folding ladder.
Inventors:
PAN XIAOFEI (CN)
Application Number:
PCT/CN2022/101341
Publication Date:
December 29, 2022
Filing Date:
June 24, 2022
Export Citation:
Assignee:
ZHEJIANG KING CHANCE CO LTD (CN)
International Classes:
E06C1/18; B25H3/06; E06C7/10; E06C7/14; E06C7/50
Domestic Patent References:
| WO2016132350A1 | 2016-08-25 |
Foreign References:
| CN113585951A | 2021-11-02 | |||
| CN203547511U | 2014-04-16 | |||
| CN103040265A | 2013-04-17 | |||
| CN201398698Y | 2010-02-10 | |||
| CN205866997U | 2017-01-11 | |||
| CN206625773U | 2017-11-10 |
Attorney, Agent or Firm:
ZHEJIANG KG INTELLECTUAL PROPERTY LAW FIRM (CN)
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