An article transport vehicle configured to travel along a first rail and a second rail parallel to each other and transport an article, includes: a first wheel configured to roll on a first travel surface, which is a travel surface of the first rail; and a second wheel configured to roll on a second travel surface, which is a travel surface of the second rail. The first wheel has a first-wheel body that includes a first outer circumferential face and is made of synthetic resin. The second wheel has a second-wheel body that includes a second outer circumferential face and is made of synthetic resin. The first outer circumferential face has a plurality of first recessed grooves extending in a circumferential direction of the first wheel. The second outer circumferential face has a plurality of second recessed grooves extending in a circumferential direction of the second wheel.

An article transport vehicle configured to travel along a first rail and a second rail parallel to each other and transport an article, includes: a first wheel configured to roll on a first travel surface, which is a travel surface of the first rail; and a second wheel configured to roll on a second travel surface, which is a travel surface of the second rail. The first wheel has a first-wheel body that includes a first outer circumferential face and is made of synthetic resin. The second wheel has a second-wheel body that includes a second outer circumferential face and is made of synthetic resin. The first outer circumferential face has a plurality of first recessed grooves extending in a circumferential direction of the first wheel. The second outer circumferential face has a plurality of second recessed grooves extending in a circumferential direction of the second wheel.

A railway vehicle and a head car cowcatcher thereof are provided. The head car cowcatcher includes a flow guiding plate; a front-end frame mounted at a front end of an inner side surface of the flow guiding plate; and longitudinal sills mounted at two sides of the inner side surface of the flow guiding plate. Two ends of the front-end frame are respectively connected to the longitudinal sills located at the two sides. The rigidity of a connecting art of the longitudinal sills and the front-end frame is smaller than the rigidities of any parts of the longitudinal sills and the front-end frame. When obstructions are cleared or a train collision occurs, the connecting part of the front-end frame and each of the longitudinal sills would be largely deformed if the impact force the cowcatcher bears is beyond the maximum load the cowcatcher can bear.

A railway vehicle and a head car cowcatcher thereof are provided. The head car cowcatcher includes a flow guiding plate; a front-end frame mounted at a front end of an inner side surface of the flow guiding plate; and longitudinal sills mounted at two sides of the inner side surface of the flow guiding plate. Two ends of the front-end frame are respectively connected to the longitudinal sills located at the two sides. The rigidity of a connecting art of the longitudinal sills and the front-end frame is smaller than the rigidities of any parts of the longitudinal sills and the front-end frame. When obstructions are cleared or a train collision occurs, the connecting part of the front-end frame and each of the longitudinal sills would be largely deformed if the impact force the cowcatcher bears is beyond the maximum load the cowcatcher can bear.