OPERATION DEVICE

摘要

An operation device includes an operation plate, an electrode, a determination portion, an output portion, a dial, a dummy electrode, a for-dummy determination portion, and a disablement portion. The operation plate includes an operation surface that is contact-operated by an operators fingertip. The determination portion determines whether the contact-operation is performed based on an amount of capacitance change between the fingertip and the electrode. The output portion outputs a predetermined command signal on the condition that the contact-operation is determined to be performed. When it is determined by the dummy electrode and the for-dummy determination portion that an operator's hand is placed at a position where a dial is operable, the disablement portion prohibits an output of the command signal or disables the outputted command signal.

主权项

1. An operation device comprising:
an operation plate having an operation surface; a first electrode that is disposed at a position facing the operation surface; a first determination portion that determines whether a hand of an operator touches the operation surface based on an amount of capacitance change between the hand of the operator and the first electrode; an output portion that outputs a predetermined command signal when the first determination portion determines that the hand of the operator touches the operation surface; a manual operation portion that is disposed on the operation plate and operated by the operator mechanically and manually; a detection portion that detects that the hand of the operator is placed at a manually operable position where the manual operation portion is manually operable; and a disablement portion that prohibits the output of the predetermined command signal from the output portion or disables the outputted predetermined command signal when the detection portion detects that the operator's hand is placed at the manually operable position, wherein the detection portion includes: a second electrode that is disposed at a position facing the manually operable position; and a second determination portion that determines whether the hand of the operator is placed at the manually operable position based on an amount of capacitance change between the hand of the operator and the second electrode, and the second electrode and the first electrode are supported by a same insulating sheet.