Push switch
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorKunio Doro
Life of this patent
Estimating the term…
Abstract
A push switch includes: a case including a recess; a fixed contact member including a fixed contact disposed in the recess; a movable contact member including a movable contact disposed in the recess; a protective sheet disposed in a first direction from the recess and covering the recess; and a rib disposed on the protective sheet. The protective sheet includes: a pressing portion; a fixed portion fixed to the case; and an intermediate portion located between the pressing portion and the fixed portion as viewed in the first direction. As the pressing portion of the protective sheet is pressed along the first direction, the movable contact member deforms by force received from the protective sheet. The movable contact touches the fixed contact as a result of the deformation of the movable contact member.
Claims20
A push switch, comprising:
- a case configured to include a recess;
- a fixed contact member configured to include a fixed contact disposed in the recess;
- a movable contact member configured to include a movable contact disposed in the recess;
- a protective sheet disposed in a first direction from the recess and configured to cover the recess;
- and
- a rib disposed on the protective sheet, wherein
- the protective sheet includes:
- a pressing portion;
- a fixed portion fixed to the case;
- and
- an intermediate portion located between the pressing portion and the fixed portion as viewed in the first direction,
- as the pressing portion of the protective sheet is pressed along the first direction, the movable contact member deforms by force received from the protective sheet, and
- the movable contact touches the fixed contact as a result of the deformation of the movable contact member,
- wherein:
- the rib is one of a plurality of ribs, and
- the plurality of ribs include a first rib set including two ribs arranged adjacent to each other with spacing therebetween on a first virtual circle centered on the pressing portion as viewed in the first direction, and
- wherein the spacing between the two ribs of the first rib set along a circumferential direction of the first virtual circle is less than or equal to a maximum length of the pressing portion as viewed in the first direction.
A push switch, comprising:
- a case configured to include a recess;
- a fixed contact member configured to include a fixed contact disposed in the recess;
- a movable contact member configured to include a movable contact disposed in the recess;
- a protective sheet disposed in a first direction from the recess and configured to cover the recess;
- and
- a rib disposed on the protective sheet,
- wherein the protective sheet includes:
- a pressing portion;
- a fixed portion fixed to the case;
- and
- an intermediate portion located between the pressing portion and the fixed portion as viewed in the first direction,
- as the pressing portion of the protective sheet is pressed along the first direction, the movable contact member deforms by force received from the protective sheet, and
- the movable contact touches the fixed contact as a result of the deformation of the movable contact member,
- wherein:
- the rib is one of a plurality of ribs, and
- the plurality of ribs include a second rib set including two ribs arranged with spacing therebetween in an outward direction from the pressing portion as viewed in the first direction, and
- wherein:
- one of the two ribs of the second rib set extends along a first virtual circle centered on the pressing portion as viewed in the first direction, and
- the other of the two ribs of the second rib set extends along a second virtual circle concentric with the first virtual circle and having a diameter greater than a diameter of the first virtual circle.
A push switch, comprising:
- a case configured to include a recess;
- a fixed contact member configured to include a fixed contact disposed in the recess;
- a movable contact member configured to include a movable contact disposed in the recess;
- a protective sheet disposed in a first direction from the recess and configured to cover the recess;
- and
- a rib disposed on the protective sheet,
- wherein the protective sheet includes:
- a pressing portion;
- a fixed portion fixed to the case;
- and
- an intermediate portion located between the pressing portion and the fixed portion as viewed in the first direction,
- as the pressing portion of the protective sheet is pressed along the first direction, the movable contact member deforms by force received from the protective sheet, and
- the movable contact touches the fixed contact as a result of the deformation of the movable contact member,
- wherein:
- the rib is one of a plurality of ribs, and
- the plurality of ribs include a second rib set including two ribs arranged with spacing therebetween in an outward direction from the pressing portion as viewed in the first direction,
- wherein the two ribs of the second rib set have different lengths as viewed in the first direction.
Dependencies are inferred from the claim text.