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Patent Searching and Data


Title:
TROLLEY
Document Type and Number:
WIPO Patent Application WO/2020/248800
Kind Code:
A1
Abstract:
A trolley, having a deployed state and a collapsed state, and comprising two side frames arranged in parallel and multiple support members connected between the two side frames (1). Each side frame comprises a vertical synchronization rod (13) and a front foot assembly (11) and a rear foot assembly (12) distributed on two sides of the vertical synchronization rods. The front foot assembly (11) comprises a front foot rod (111) and an upper front oscillating rod (112) and a lower front oscillating rod (113) hinge-connected between the vertical synchronization rod (13) and the front foot rod (111). A front caster (114) is hinge-connected to the bottom of the front foot rod (111). The rear foot assembly (12) comprises a rear foot rod (121) and an upper rear oscillating rod (122) and a lower rear oscillating rod (123) hinge-connected between the vertical synchronization rod (13) and the rear foot rod (121). A rear caster (1240) is hinge-connected to the bottom of the rear foot rod (121). In the collapsed state, both the front foot assembly (11) and the rear foot assembly (12) move towards the vertical synchronization rod (13). In the deployed state, the front foot assembly (11) and the rear foot assembly (12) extend outwards. A support member can be directly provided between the two lower oscillating rods, and can retract as the side frame collapses. The invention eliminates the need to separately provide a collapsible support member, thereby simplifying the structure of the trolley.

Inventors:
ZHAO GUOSONG (CN)
Application Number:
CN2020/091834
Publication Date:
December 17, 2020
Filing Date:
May 22, 2020
Export Citation:
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Assignee:
CH BABY CO LTD (CN)
International Classes:
B62B3/02; B62B5/00; B62B5/04; B62B7/06; B62B9/10; B62B9/14
Foreign References:
CN110356448A2019-10-22
US20030025301A12003-02-06
US20030025301A12003-02-06
CN206307075U2017-07-07
CN207202585U2018-04-10
CN109153398A2019-01-04
CN105781225A2016-07-20
CN208007010U2018-10-26
CN208868091U2019-05-17
JP2018114855A2018-07-26
US20150035258A12015-02-05
Attorney, Agent or Firm:
HEXIN INTELLECTUAL PROPERTY FIRM (CN)
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