A weather strip (1) includes extruded parts (2,3) and a molded part (4). In the molded part which corresponds to an upper corner part, a slit is formed in a base portion thereof for ease of the removal of a core mold. The slit is provided with a first slit...

The core mold in the molding device (51) for forming the molded member (4) of the weather strip (1) is provided with a center core (61) having a center core body (63), and a side core (62) having a pair of side core bodies (66L, 66R). The base bottom porti...