Title:
BOOM AND WORKING EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2021/179546
Kind Code:
A1
Abstract:
A boom (100) and working equipment. The working equipment comprises a chassis and a boom system arranged on the chassis, the boom system comprises a plurality of booms (100), and two adjacent booms (100) are hinged to each other. The boom (100) has a frame structure; the boom (100) comprises a bottom plate (110), a bottom plate (120), a first side plate (130), and a second side plate (140); bending portions are formed on both sides of each of the top plate (110) and the bottom plate (120); at least part of each bending portion is separately attached to and assembled with an end portion of the corresponding first side plate (130) or second side plate (140), so as to define the frame structure. The boom (100) is formed by assembly, and thus is suitable for mass production and has a low replacement cost.
Inventors:
XIE SHIHUI (CN)
GUO XI (CN)
LI JIANGBO (CN)
GUO XI (CN)
LI JIANGBO (CN)
Application Number:
PCT/CN2020/112051
Publication Date:
September 16, 2021
Filing Date:
August 28, 2020
Export Citation:
Assignee:
SANY AUTOMOBILE MFG CO LTD (CN)
International Classes:
E04G21/02; E04G21/04
Foreign References:
| CN101666162A | 2010-03-10 | |||
| CN103410326A | 2013-11-27 | |||
| CN207554069U | 2018-06-29 | |||
| CN207554068U | 2018-06-29 | |||
| CN111173287A | 2020-05-19 | |||
| CN111335638A | 2020-06-26 | |||
| CN202645013U | 2013-01-02 | |||
| CN204001765U | 2014-12-10 | |||
| CN102535857A | 2012-07-04 | |||
| EP3224430B1 | 2018-09-12 | |||
| DE102013225228A1 | 2015-06-11 | |||
| CN202010162108A | 2020-03-10 |
Other References:
See also references of EP 4119743A4
Attorney, Agent or Firm:
YOULINK INTELLECTUAL PROPERTY LAW FIRM (CN)
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