US 12,410,839 B2
Connection structure of oil hose for transmission
Jae Won Sim, Yangsan-si (KR); Jae Hyeok Choi, Yangsan-si (KR); Guk Hyun Kim, Yangsan-si (KR); Young Jun Kim, Yangsan-si (KR); Jun Young Bae, Yangsan-si (KR); and Ho Yeon Lee, Yangsan-si (KR)
Assigned to HS R & A CO., LTD., Gyeongsangnam-Do (KR)
Filed by HS R & A Co., Ltd., Yangsan-si (KR)
Filed on Dec. 13, 2023, as Appl. No. 18/538,770.
Claims priority of application No. 10-2023-0165127 (KR), filed on Nov. 24, 2023.
Prior Publication US 2025/0172178 A1, May 29, 2025
Int. Cl. F16L 33/01 (2006.01); F16D 48/02 (2006.01); F16L 33/207 (2006.01)
CPC F16D 48/02 (2013.01) [F16L 33/01 (2013.01); F16L 33/2076 (2013.01); F16D 2048/0224 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A connection structure of a hose for transmission oil comprising:
a multilayer hose comprising:
a first rubber layer formed by a first pipe;
a braided layer formed on an outer surface of the first rubber layer and formed by braiding aramid fibers; and
a second rubber layer located on the outer surface of the first rubber layer;
a first connector comprising:
a body inserted into an inside of the first rubber layer;
a second pipe connected with the first pipe;
a stopper protruding from the body; and
an inclined portion formed at an end of the body and forming an uphill slope of approximately 11° to 17° to one side of the body toward the stopper; and
a second connector comprising:
a cover portion covering the multilayer hose; and
a plurality of pressurized portions formed concave with respect to an outer peripheral surface of the cover portion and in contact with the multilayer hose;
wherein the first connector comprises irregularities formed by repeating convex portions and concave portions on an outer peripheral surface of the body; and
at least one of the plurality of pressurized portions of the second connector is formed in a position corresponding to one of the concave portions of the first connector; and
wherein an end of the inclined portion protrudes in a radial direction more than the convex portions from the outer peripheral surface of the body.