Switch with guide and sloped faces

A switch, comprising:

• a housing comprising an operation surface with an operation hole and an internal compartment communicating with outside through the operation hole;
• a movable member accommodated in the compartment and extending in a movement direction intersecting with the operation surface from the compartment to outside the housing through the operation hole, the movable member comprising an operation part located at an end of the movable member outside the housing, the movable member being reciprocable in the movement direction relative to the housing;
• a sealant fitted with the movable member, the sealant sealing a gap between the movable member and the housing inside the compartment;
• and
• a guide configured to guide the movable member in the movement direction, wherein
• the operation part comprises at least three slopes or a cone extending linearly from the operation surface toward a distal end of the movable member outside the housing, sloping toward a central axis extending in the movement direction of the movable member away from the operation surface, and sloping in directions intersecting with one another at the central axis, as viewed in the movement direction, and
• the sealant is fitted along an entire periphery of the movable member about the central axis at a position located below, in the movement direction, a portion of the moveable member that contacts the housing around an inner periphery of the operation hole and seals an entire periphery of the movable member with an upper opening of the sealant.