US 12,128,521 B2
Apparatus for forming a hairline finish
Jae Sang Hwang, Seoul (KR); and Wan Seob Song, Seoul (KR)
Assigned to Jae Sang Hwang, Seoul (KR)
Filed by Jae Sang Hwang, Seoul (KR)
Filed on Aug. 28, 2020, as Appl. No. 17/006,696.
Claims priority of application No. 10-2019-0078943 (KR), filed on Jul. 1, 2019.
Prior Publication US 2021/0146496 A1, May 20, 2021
Int. Cl. B24B 23/00 (2006.01); B24B 23/02 (2006.01)
CPC B24B 23/005 (2013.01) [B24B 23/022 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An apparatus for providing a surface finish on a target material comprising:
a longitudinal body including a rotating shaft attached to a lateral portion of a first proximal portion of the longitudinal body, wherein a second distal portion of the longitudinal body forms a handle;
an abrasive member configured for providing the surface finish on the target material;
a first bracket for fixing the abrasive member to the rotating shaft;
a guide unit attached to the lateral portion or an end portion of the first proximal portion of the longitudinal body, comprising:
a guide bar having a first end and a second end, wherein the first end of the guide bar is attached to the to the lateral portion of the first proximal portion of the longitudinal body at a further distance from the second distal portion of the longitudinal body than the rotating shaft, wherein the second end of the guide bar extends parallel to a longitudinal direction of the rotation shaft and perpendicular to a longitudinal direction of the longitudinal body, and wherein the second end of the guide bar disposed farthest from the longitudinal body is disposed closer to the longitudinal body than the abrasive member;
a bent portion at the second end of the guide bar, wherein the bent portion is disposed in a perpendicular direction to the rotating shaft and extends away from the abrasive member, wherein the abrasive member is not overlapped with the guide unit in the perpendicular direction through the bent portion or in the longitudinal direction through the guide bar;
the longitudinal body further comprising a ring shaped mounting portion encircling the rotating shaft at the lateral portion of the first proximal portion of the longitudinal body;
the apparatus further comprising a second bracket that includes:
a ring shaped fixing part directly attached to an anterior portion of the ring shaped mounting portion of the body; and
an inserting portion directly attached to the fixing part and including an inserting hole securing the first end of the guide bar to the mounting portion.