US 11,873,673 B2
Single-axis hinge
Kazuaki Kashiwaguma, Tokyo (JP); Shuu Shimizu, Tokyo (JP); and Naoya Iwata, Tokyo (JP)
Assigned to SUGATSUNE KOGYO CO., LTD., Tokyo (JP)
Appl. No. 17/753,166
Filed by SUGATSUNE KOGYO CO., LTD., Tokyo (JP)
PCT Filed Jul. 29, 2020, PCT No. PCT/JP2020/028995
§ 371(c)(1), (2) Date Feb. 22, 2022,
PCT Pub. No. WO2021/039254, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 2019-158940 (JP), filed on Aug. 30, 2019.
Prior Publication US 2022/0298841 A1, Sep. 22, 2022
Int. Cl. E05F 3/20 (2006.01)
CPC E05F 3/20 (2013.01) [E05Y 2900/20 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A single-axis hinge comprising:
a first member attached to a main body;
a second member which is attached to a door and can rotate with respect to the first member around a shaft facing a vertical direction;
a catch mechanism having a spring and giving rotational force in a closing direction to the door in the vicinity of a closed position; and
a damper mechanism having a linear damper and damping rotation of the door when the door is closed,
wherein the catch mechanism and the damper mechanism are disposed on either one of the first member and the second member,
an other of the first member and the second member has a cylindrical portion through which the shaft is inserted,
a cylinder portion and a concave portion are formed on an outer surface of the cylindrical portion,
a protrusion for operating a slider of the damper mechanism is further formed on an outer surface of the cylindrical portion,
wherein a curved concave portion complementary to a cylinder portion of the outer surface of the cylindrical portion is formed on the slider of the damper mechanism, and wherein a slider of the catch mechanism is biased onto the outer surface of the cylindrical portion by the spring.