Patent ID: 9082564
Filing Date: 2015-07-14
Classification: H01H

Abstract:
1. A key switch structure in which a key top is pushed-down and makes contact with a conductor, and the key top is returned to an original position by a restoring member, the key switch structure comprising: a plurality of supporting members that support the key top so as to be movable vertically; wherein the length of at least one side of each of the plurality of supporting members is less than or equal to a placement diameter of the restoring member; wherein the key switch structure further comprises a first restricting portion that restricts positional offset, in a predetermined direction, of at least one supporting member among the plurality of supporting members, and a second restricting portion that restricts positional offset, in the predetermined direction, of the key top with respect to the at least one supporting member; wherein the key switch structure further comprises a third restricting portion that restricts positional offset, in a direction that is different than the predetermined direction, of a supporting member other than the at least one supporting member among the plurality of supporting members, and a fourth restricting portion that restricts positional offset, in the direction that is different than the predetermined direction, of the key top with respect to the supporting member other than the at least one supporting member; wherein the first and second restricting portions also restrict positional offsets of the at least one supporting member and the key top, respectively, in a direction opposite to the predetermined direction; wherein the third and fourth restricting portions also restrict positional offsets of the other one of the supporting members and the key top, respectively, in a direction opposite to the direction that is different than the predetermined direction; and wherein the first restricting portion is configured by positions of distal end portions of rotating pins of one of the supporting members being restricted by deep walls of groove portions in a holder, and the second restricting portion is configured by positions of sliding/holding portions provided at the key top being restricted by distal end portions of sliding pins of the one of the supporting members.