US 12,257,730 B2
Blade-replaceable cutting tool
Yueming Li, Hangzhou (CN)
Assigned to HANGZHOU GREAT STAR INDUSTRIAL CO., LTD., Hangzhou (CN)
Filed by HANGZHOU GREAT STAR INDUSTRIAL CO., LTD., Hangzhou (CN)
Filed on Jun. 27, 2022, as Appl. No. 17/849,970.
Application 17/358,942 is a division of application No. 16/344,916, granted, now 11,045,962, issued on Jun. 29, 2021, previously published as PCT/CN2017/096468, filed on Aug. 8, 2017.
Application 17/849,970 is a continuation in part of application No. 17/358,942, filed on Jun. 25, 2021, granted, now 12,017,374.
Claims priority of application No. 201621447525.0 (CN), filed on Dec. 27, 2016.
Prior Publication US 2022/0324124 A1, Oct. 13, 2022
Int. Cl. B26B 5/00 (2006.01); B23D 21/10 (2006.01); B25B 7/12 (2006.01); B25B 7/14 (2006.01); B26D 3/16 (2006.01); B23D 21/06 (2006.01)
CPC B26B 5/00 (2013.01) [B23D 21/10 (2013.01); B25B 7/12 (2013.01); B25B 7/14 (2013.01); B26D 3/16 (2013.01); B23D 21/06 (2013.01); B26D 3/169 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A blade-replaceable cutting tool, comprising:
a first handheld portion;
a second handheld portion rotatably connected to the first handheld portion;
a cutting structure rotatably connected to the first handheld portion,
wherein the cutting structure comprises:
a blade mounting plate rotatably mounted to the first handheld portion; and
a blade detachably mounted to the blade mounting plate; and
a locking mechanism comprising a toggle component and an elastic component, wherein the elastic component is connected to the blade mounting plate and the toggle component respectively, and the toggle component is movably connected to the blade mounting plate, and the locking mechanism is configured that: the toggle component locks the blade on the blade mounting plate when the toggle component is in contact with the blade under an action of an elastic force of the elastic component, and the toggle component unlocks the blade when the toggle component overcomes the elastic force under an action of an external force and move to separate from the blade, so that the blade can be detached from the blade mounting plate;
wherein the toggle component is a toggle sheet, the toggle sheet comprising a toggle portion, a latch portion and a bayonet portion, wherein the toggle portion is exposed to outside of the cutting structure from an edge of the cutting structure; the latch portion is configured to be snapped into a fixing bayonet of the blade, a fixing latch of the blade is configure to be snapped into the bayonet portion; the toggle sheet is configured that the toggle sheet locks the blade when the latch portion is snapped into the fixing bayonet of the blade and the fixing latch of the blade is configure to be snapped into the bayonet portion, and the toggle sheet is rotated relative to the cutting structure under the external force, so that the latch portion is separated from the fixing bayonet of the blade and the bayonet portion is separated from the fixing latch of the blade, thereby unlocking the blade.