Throttle body with insert-molded member

摘要

In a throttle body (1), a cylindrical body member (3) is made of resin, and a core (6) is made of a material different from the body member (3) and insert molded in the body member (3). A notch (10a, 10c) is provided on an outer surface of the body in a peripheral direction, in a proximity of the core (6). The body member (3) is readily split at the notch (10a, 10c) when external force is applied to the body member (3) during a dismantling. Therefore, the core (6) is readily removed from the body member (3). Alternatively, the body member (3) can be constructed of a first body (31) having a hook (31b) and a second body (32) having a hook-receiving portion (32b). Both the first and second bodies (31, 32) are connected to each other through the hook (31b) and the hook-receiving portion (32b), and the core (6) is held between both the first and second bodies (31, 32). Thus, the core (6) is readily removed from the bodies (31, 32) by unhooking the hook (31b).