Switch and insert molding method

A switch, comprising:

• a housing having a longitudinal shape;
• a first fixed-contact member;
• a second fixed-contact member;
• and
• a movable contact member, wherein
• the housing includes a casing,
• the first fixed-contact member includes:
• a first external-connection terminal configured to be exposed from one end in a longitudinal direction of the housing;
• and
• a central fixed contact configured to be exposed from a central portion of a bottom of the casing,
• the first fixed-contact member is configured to extend from the first external-connection terminal to the central fixed contact in the longitudinal direction,
• the second fixed-contact member includes:
• a second external-connection terminal configured to be exposed from another end in the longitudinal direction of the housing;
• and
• a plurality of peripheral fixed contacts configured to be exposed from a peripheral portion of the bottom of the casing,
• the second fixed-contact member is configured to extend from the second external-connection terminal to the plurality of peripheral fixed contacts in the longitudinal direction,
• the movable contact member is capable of being brought into contact with and detached from the central fixed contact by inversion incurred by pressing,
• the first fixed-contact member includes extended supports projecting from sides of the central fixed contact in a transverse direction of the housing, and
• back surfaces of the extended supports are configured to serve as receivers for receiving resin ejected from gates upon insert molding of the housing.