Device for coupling high-speed railroad cars and method for removing device

A device for coupling high-speed railroad cars comprising:

• a coupler;
• a shock absorber held in a shock absorber frame;
• and
• a coupling joint which joins the coupler and the shock absorber held in the shock absorber frame by a coupling pin, wherein
• the shock absorber frame has a front-end wall partially cut in an inverted cone shape so as to have a front inner surface with a semi-circular concave inner surface to which a cylindrical inner surface extends,
• the coupling joint has a structure such that a circumferential surface of a short cylinder into which is inserted a rear portion of the coupler which is inserted from the opening of the shock absorber frame forms a rounded convex surface which engages with the semi-circular concave surface of the shock absorber frame, and an insertion hole is provided in a direction perpendicular to the axis of the short cylinder, and
• in the shock absorber frame, there is provided a removal hole for the coupling pin which is disposed at a position to rotate at a predetermined angle in a circumferential direction in the assembled state, and at a position coaxial with the coupling pin in the assembled state in which the coupling pin is inserted into an insertion hole of the coupling joint into which is inserted the rear portion of the coupler which is inserted from the opening.