JP2013073711A5 - - Google Patents

Description

In order to achieve the above object, the present invention radiates an electric field arranged inside a rotating part having a fixing part, a rotating part rotating with respect to the fixing part, and a metal fitting arranged on the outer periphery of the fixing part. An operation unit having an induction electrode made of a conductive metal provided on the outside in a non-contact manner with respect to the electrostatic electrode, and when an electric field is radiated from the electrostatic electrode, Constitutes a rotary operation switch from which is emitted .

According to the present invention, a rotating portion having a fixed portion, a rotating portion that rotates relative to the fixed portion, and a metal fitting that is disposed on the outer periphery of the fixed portion, an electrostatic electrode that radiates an electric field disposed inside the rotating portion, and a static And an operation unit having an induction electrode made of conductive metal provided on the outside in a non-contact manner with respect to the electric electrode. When an electric field is radiated from the electrostatic electrode, the electric field is radiated between the induction electrode and the metal fitting. To provide a highly recognizable rotary operation switch and a proximity detection device using the same because an operation switch is configured and a switch that is turned off when an operator brings a finger or the like close to an operation body performs illumination. I can do it.

Claims (6)

A rotary encoder having a fixed portion, a rotating portion that rotates relative to the fixed portion, and a metal fitting disposed on an outer periphery of the fixed portion;
And an operation unit having a conductive metal induction electrodes provided outside the arranged electric field inside the non-contact with respect to the electrostatic electrode and the electrostatic electrode to emit the rotating part, from the electrostatic electrode A rotary operation switch that emits an electric field between the induction electrode and the metal fitting when an electric field is radiated . The operation unit has an operation body made of insulating resin,
The rotary operation switch according to claim 1, wherein the induction electrode is a conductive metal cover, and at least a part of the operation body is interposed between the electrostatic electrode and the conductive metal cover. The rotary operation switch according to claim 2, wherein the conductive metal cover is configured to include a side surface provided around and an upper surface portion connecting the side surface at an upper end side. 2. The rotation according to claim 1, wherein the electrostatic electrode includes a ring portion formed by circling and a terminal portion extending from the ring portion, and the ring portion and the terminal portion are configured by bending a single metal wire. Operation switch. A rotation operation switch according to claim 1, a light emitting element, a light guide disposed to face the light emitting element, a control circuit electrically connected to the electrostatic electrode, the metal fitting, and the light emitting element. And a proximity detection device that switches the light emitting element from a light-off state to a light-on state when an electric capacity between the electrostatic electrode and the metal fitting becomes smaller than a predetermined value. The light guide includes an incident surface orthogonal to the optical axis direction of the light emitting element provided at a position facing the light emitting element, and 30 degrees to 60 degrees in the optical axis direction and inward of the incident surface. The proximity detector according to claim 5, further comprising a slope having an inclination.