US 11,852,183 B2
Press-fit nut for assembly, press-fit nut-bolt assembly, and method of constructing steel-concrete composite structure using same
Dong Joon Kim, Goyang-si (KR); Koo Yun Park, Seoul (KR); Joo Ho Jin, Paju-si (KR); and Hee Sun Seo, Goyang-si (KR)
Appl. No. 17/290,738
Filed by GAURIAN CO., LTD., Goyang-si (KR)
PCT Filed Sep. 17, 2020, PCT No. PCT/KR2020/012570
§ 371(c)(1), (2) Date Apr. 30, 2021,
PCT Pub. No. WO2021/054744, PCT Pub. Date Mar. 25, 2021.
Claims priority of application No. 10-2019-0113932 (KR), filed on Sep. 17, 2019; and application No. 10-2019-0113933 (KR), filed on Sep. 17, 2019.
Prior Publication US 2022/0003259 A1, Jan. 6, 2022
Int. Cl. F16B 37/04 (2006.01); E04B 1/24 (2006.01); E04B 1/41 (2006.01); F16B 5/02 (2006.01); F16B 35/04 (2006.01)
CPC F16B 37/04 (2013.01) [E04B 1/2403 (2013.01); E04B 1/41 (2013.01); F16B 5/0208 (2013.01); F16B 35/04 (2013.01); E04B 2001/2418 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A press-fit nut-bolt assembly having a press-fit nut, a stud bolt, a counter nut, and a washer, wherein the press-fit nut comprises:
a head part formed in a normal nut shape; and
a press-fit part formed to extend from one of both sides of the head part and having an outer diameter of the head part reduced as it extends, and is inserted by press-fitting into a base material M which requires fastening,
wherein the head part and the press-fit part have a hollow with ridges continuously formed therein,
wherein the stud bolt includes:
a body part penetrating the press-fit nut so as to be coupled with the press-fit nut; and
a pin tail formed to extend from the end of the body part and coupled with a mechanism for rotating the body part,
wherein the body part includes a first ridge part and a second ridge part which are formed on an outer surface of the body part along the length direction of the body part and formed to be spaced apart from each other,
wherein the counter nut is disposed on the opposite side of the press-fit nut with the base material therebetween which the stud bolt penetrates so that the stud bolt penetrates the counter nut so as to be coupled with the counter nut,
wherein the washer is disposed between the base material and the counter nut, and the stud bolt penetrate its center,
wherein the pin tail is formed at an end of the second ridge part which is one of both ends of the body part, so that the press-fit nut is coupled with the first ridge part and the counter nut is coupled to the second ridge part, and the first ridge part and the second ridge part are opposite to each other in directions of their ridges, and
wherein the pin tail has a pin groove formed at an end thereof, and an assembly pin corresponding to a shape of the pin groove is coupled with the pin groove, so that the press-fit nut and the counter nut are fastened in a direction approaching each other by rotating a connector.