Title:
TORSION SPRING STRUCTURE FOR DOUBLE-SHAFT SINGLE KNIFE-INTEGRATED SCISSORS
Document Type and Number:
WIPO Patent Application WO/2019/114292
Kind Code:
A1
Abstract:
A torsion spring structure for double-shaft single knife-integrated scissors, comprising: a shearing piece B (4). One shaft hole on the shearing piece B (4) and a first shaft hole on a shearing piece A (12) are aligned and are rotatably connected to a first rotating shaft; another shaft hole on the shearing piece B (4) and a shaft hole on a scissor handle (3) are aligned and are rotatably connected to a rotating shaft; a second shaft hole on the shearing piece A (12) and a shaft hole on an inner piece (11) are aligned and are rotatably connected to a second rotating shaft; a torsion spring is provided between the shearing piece A (12) and the shearing piece B (4); a protrusion (8) at an end portion of the shearing piece A (12) abuts against a limiting block (13). According to the torsion spring structure for double-shaft single knife-integrated scissors, a metal rod on the bottom bone of the scissors is elastically deformed to fix the shearing pieces, and a torsion spring is provided between the shearing pieces to form a shear elastic force of the scissors; thus, use is facilitated by means of such an opening and closing structure.
Inventors:
SUN FENG (CN)
LING JINLAI (CN)
LING JINLAI (CN)
Application Number:
PCT/CN2018/099185
Publication Date:
June 20, 2019
Filing Date:
August 07, 2018
Export Citation:
Assignee:
SUN FENG (CN)
International Classes:
B26B13/00
Foreign References:
| US20060185175A1 | 2006-08-24 | |||
| JP2007175203A | 2007-07-12 | |||
| CN203831431U | 2014-09-17 | |||
| CN202781214U | 2013-03-13 | |||
| CN204948860U | 2016-01-13 |
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