Waterproof switch device
A waterproof switch device includes: a switch member including a body portion and a movable portion; an operated portion that is a shaft member having a distal end exposed from an opening provided in an exterior member of an electronic apparatus and a proximal end connected to the movable portion, the operated portion including a flange portion extending in a radial direction; a waterproof cover made of elastomer material; and a retaining member including an opening portion through which a part of the operated portion closer to the distal end than the flange portion can pass but the flange portion cannot pass, the retaining member being disposed farther inward from the exterior member than the waterproof cover.
1. A waterproof switch device provided in an electronic apparatus, the waterproof switch device comprising:
a switch member including a body portion and a movable portion configured to move relative to the body portion, the body portion being fixed to an inner side of an exterior member of the electronic apparatus, and the switch member being configured to exert electrical action according to movement of the movable portion;
an operated portion that is a shaft member having a distal end exposed from an opening provided in the exterior member and a proximal end connected to the movable portion, the operated portion including a flange portion extending in a radial direction between the distal end and the proximal end;
a waterproof cover made of elastomer material, the waterproof cover including a first watertight portion in which a through hole is formed, the first watertight portion being in tight contact with an outer circumferential surface of a part of the operated portion between the distal end and the flange portion, a second watertight portion that is in tight contact with an internal surface of the exterior member in a manner of surrounding the opening or in tight contact with a whole inner circumferential surface of the opening in a circumferential direction, and a film-like portion provided between the first watertight portion and the second watertight portion; and
a retaining member formed as a member separated from the exterior member, and including an opening portion through which a part of the operated portion closer to the distal end than the flange portion can pass but the flange portion cannot pass, the retaining member having an entire shape formed in a hat shape with a brim, the hat shape having a distal end portion where the opening portion is formed as a top portion, the retaining member being disposed farther inward from the exterior member than the waterproof cover.
2. The waterproof switch device according to claim 1 , wherein
an outer circumferential portion of the retaining member extending from the opening portion is supported in a sandwiched manner between the body portion of the switch member and the second watertight portion of the waterproof cover.
3. The waterproof switch device according to claim 1 , wherein a space is defined between the operated portion and the retaining member such that the switch member can perform a tilt movement with respect to the exterior member of the electronic apparatus.
4. The waterproof switch device according to claim 1 , wherein a space is defined between the operated portion and the retaining member such that the switch member can perform a tilt movement in at least eight directions from a neutral position with respect to the exterior member of the electronic apparatus.