Operation input apparatus and operation input detection apparatus

摘要

An operation input apparatus configured to receive a force from an operator, including: a board 10 including a placement surface on which coils 21˜24 are placed, the coils being arranged in a circumferential direction of a circle formed by connecting points apart from a reference point by the same distance; a key 30 that is provided in a side where the force is input with respect to the board 10; and a return spring 51˜54 elastically supporting the key 30, wherein the key 30 includes an opposed surface opposed to the placement surface and an operation surface configured to receive an application of the force, and causes an inductance of at least one of the coils 21˜24 to change with an approach of the opposed surface to the placement surface due to the application of the force on the operation surface.

主权项

1. An operation input apparatus configured to receive a force from an operator, the operation input apparatus comprising:
a base part including a placement surface on which plural inductors are placed, the inductors being arranged in a circumferential direction of a circle formed by connecting points apart from a reference point by the same distance; a displacement member that is provided in a side where the force is input with respect to the base part, the displacement member including an opposed surface opposed to the placement surface and an operation surface configured to receive an application of the force, and the displacement member being configured to cause an inductance of at least one of the inductors to vary with an approach of the opposed surface to the placement surface due to the application of the force on the operation surface; a support member configured to support the displacement member such that an interval between the opposed surface and the placement surface elastically changes; and an output part configured to output an output signal generated by variations of the inductance, wherein the displacement member includes an inductance increase member configured to increase an absolute value of inductance of at least one of the plural inductors, wherein the inductance increase member is provided on the opposed surface such that the inductance increase member is opposed to each of the plural inductors, and wherein the plural inductors are coils, and the inductance increase member is a core for the coils.