Patent ID: 7109428
Filing Date: 2006-09-19
Classification: H01H

Abstract:
1. A rocking operation type electric component comprising: an operation knob that has a bottomed case-shaped configuration and is rockably held; a signal generating unit that includes a movable element pressed and driven by the operation knob and generates a different electric signal in response to a position change of the movable element; and a case on which a mounting frame for pivotally supporting the operation knob is protrusively provided formed and in which the signal generating unit is received, wherein a pair of rotation shafts which face each other are protrusively formed on inner wall portions of the operation knob, respectively, through-holes are respectively formed in a pair of wall portions of the mounting frame which face each other, and the rotation shafts are fitted into the through-holes from the outside of the mounting frame to be rotatably supported by the mounting frames, wherein two mounting frames, which are located in parallel with surfaces having the through-holes adjacent each other, and a partition wall, which is located between the two mounting frames, are protrusively formed on the case, and at an opened end of the operation knob, a side wall facing the partition wall has a tapered portion that a front end portion gradually decreases in its thickness and a gap between the partition wall and the front end portion of the side wall of the operation knob gradually decreases.