Back cover and method of assembling back cover

摘要

A back cover (16) is attached to a cover mounting portion (5) of a lamp body (2) defining a lamp chamber (4) of a vehicle lamp (1). The back cover (16) is provided with a cover main body (19) to which a connection terminal (20) is partially embedded and a metallic case member (18) to which a circuit board (29, 30) is mounted. A seal groove (27) is formed on one of the cover main body (19) the case member (18). An elongated seal projection (18b) formed on the other of the cover main body (19) the case member (18). The elongated seal projection (18b) is fitted in the seal groove (27) and bonded to the seal groove (27), so that the elongated seal projection (18b) is fixed to the seal groove (27).