Title:
LADDER
Document Type and Number:
WIPO Patent Application WO/2020/015543
Kind Code:
A1
Abstract:
Provided is a ladder, comprising a ladder frame (2) and a composite pedal (1), wherein the composite pedal (1) is mounted on the ladder frame (2) by using a connecting piece (3), and the composite pedal (1) comprises a plastic step (11) and a metal piece (12), wherein the metal piece (12) is embedded in the plastic step (11); the metal piece (12) is arranged at the outer edge of the plastic step (11), and the metal piece (12) extends in an open loop or a closed loop along the outer edge of the plastic step (11), and the metal piece (12) has at least one bend. The ladder combines the performance advantages of plastics and metals with low cost and high load capacity.
Inventors:
ZHU CHENHUI (CN)
ZHANG YONGJIAN (CN)
ZHANG YONGJIAN (CN)
Application Number:
PCT/CN2019/094846
Publication Date:
January 23, 2020
Filing Date:
July 05, 2019
Export Citation:
Assignee:
JIANGSU ZHOU JIJIE LNTELLIGENT TECH CO LTD (CN)
International Classes:
E06C7/08
Foreign References:
| CN208996619U | 2019-06-18 | |||
| CN201056976Y | 2008-05-07 | |||
| CN201056976Y | 2008-05-07 | |||
| CN201043373Y | 2008-04-02 | |||
| CN201103340Y | 2008-08-20 | |||
| US20020153202A1 | 2002-10-24 | |||
| JP2005060951A | 2005-03-10 | |||
| CN207110949U | 2018-03-16 | |||
| CN102623930A | 2012-08-01 | |||
| CN101684720A | 2010-03-31 |
Attorney, Agent or Firm:
BEIJING ZHILIN HENGYUAN INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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