US 11,794,367 B2
Cold knife holder capable of pushing and pulling operation
Yu-Yang Tseng, Taichung (TW); and Heng-Yi Hsu, Tainan (TW)
Filed by Yu-Yang Tseng, Taichung (TW); and Heng-Yi Hsu, Tainan (TW)
Filed on Mar. 23, 2021, as Appl. No. 17/209,764.
Prior Publication US 2022/0305682 A1, Sep. 29, 2022
Int. Cl. B26B 27/00 (2006.01); B26B 5/00 (2006.01); B26B 3/00 (2006.01); B26B 1/08 (2006.01); B26B 1/10 (2006.01); B25B 27/00 (2006.01)
CPC B26B 27/00 (2013.01) [B26B 1/08 (2013.01); B26B 1/10 (2013.01); B26B 3/00 (2013.01); B26B 5/00 (2013.01); B25B 27/0035 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A cold knife holder comprising:
a columnar main body having a first end and a second end opposite to each other, said columnar main body having a chamber and a slot, the chamber extending from the first end into said columnar main body, the slot extending from the second end into said columnar main body, said columnar main body having an abutting surface formed therein, the chamber being located between the first end and the abutting surface, said columnar main body having a perforation on one side, the perforation communicating with the chamber, the slot adapted to receive a blade therein;
a handle having a sleeve and an elongated connecting rod and a grip rod, wherein one end of the elongated connecting rod is connected to one side of the sleeve, another end of the elongated connecting rod being connected to the grip rod, the grip rod adapted to be gripped by a user, the sleeve being pivotally sleeved to the first end of said columnar main body, the sleeve having a pipe wall, wherein one side of the pipe wall facing said columnar main body has a first hole and a second hole, the first hole and the second hole being opposite to each other on the sleeve, said handle being rotatable against the first end of said columnar main body, the first hole and the second hole communicating with the perforation;
a detent member movably arranged in the chamber, said detent member being reciprocable between a first position and a second position in said columnar main body;
a first spring positioned in the chamber, said first spring having opposite ends urging against the abutting surface and said detent member respectively, and
a first steel ball pivotally embedded in the perforation, said first steel ball urging against said detent member such that said detent member drives said first steel ball so as to be received in the first hole or the second hole so as to position said handle after the rotation.