Patent ID: 11912316
Assignee: CRRC QIQIHAR ROLLING STOCK CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 5:
6. A coupler body comprising
an upper traction platform,
a lower traction platform,
an upper impact platform,
a lower impact platform,
a pin hole and
a lock chamber,
wherein a section T of a traction surface of the upper traction platform and a section U of a traction surface of the lower traction platform are obtained by sectioning the coupler body along any vertical plane passing through an axis of the pin hole; and
a perpendicular distance between a point on the section T farthest from the lower traction platform and the axis of the pin hole is defined as k0, and a perpendicular distance between a point on the section U farthest from the upper traction platform and the axis of the pin hole is defined as m0, and n0=1k0−m01, and 10 mm≤n0≤25 mm.