Title:
RING KNIFE
Document Type and Number:
WIPO Patent Application WO/2022/048688
Kind Code:
A1
Abstract:
A ring knife, comprising a ring (100), a telescopic knife (200), a toggle switch (300), and a reset mechanism (400). The telescopic knife (200) comprises a housing (210) and a blade (220) arranged in the housing (210). The housing (210) is fixedly mounted on the ring (100). An opening (211) is formed on the housing (210). The blade (220) is slidably mounted in the housing (210). The toggle switch (300) is slidably mounted on the housing (210) for pushing the blade (220) to extend out of the opening (211) under an external force. The reset mechanism (400) is arranged inside the housing (210) and is used for driving the blade (220) to automatically retract into the housing (210) when the external force on the toggle switch (300) disappears. When not in use, the present ring knife may be worn on a finger to prevent loss, and the blade of the ring knife may automatically retract into the housing when not in use, so as to prevent the blade from being exposed and harming the human body when not in use.
Inventors:
YUE WING SING (CN)
LAI KWONG CHING (CN)
LAI KWONG CHING (CN)
Application Number:
PCT/CN2021/121031
Publication Date:
March 10, 2022
Filing Date:
September 27, 2021
Export Citation:
Assignee:
YUE WING SING (CN)
LAI KWONG CHING (CN)
LAI KWONG CHING (CN)
International Classes:
B26B27/00; A44C9/02
Foreign References:
| CN212825522U | 2021-03-30 | |||
| CN203697051U | 2014-07-09 | |||
| TWM294405U | 2006-07-21 | |||
| CN107019298A | 2017-08-08 | |||
| CN207428590U | 2018-06-01 | |||
| CN208176210U | 2018-12-04 | |||
| GB2426946A | 2006-12-13 | |||
| US5070563A | 1991-12-10 | |||
| US20160286910A1 | 2016-10-06 |
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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