Patent ID: 9041512
Filing Date: 2015-05-26
Classification: G05B,G05G,G07C,G08C,H04B

Abstract:
1. An electronic key comprising: upper and lower casings that are fitted to each other so as to seal the inside of the casings; an inner casing that is covered by the upper and lower casings, that does not comprise a bendable structure, and that has a battery mounted on a lower surface side of the inner casing, the battery being used to drive an electronic circuit configured to communicate with the outside of the electronic key; a waterproof rubber that covers an upper surface side of the inner casing; an upper casing projection that projects from an inner wall surface of the upper casing; and a waterproof-rubber outer-wall recess portion that is recessed from an outer wall surface of the waterproof rubber and that houses the upper casing projection, wherein a projection length of the upper casing projection from the inner wall surface of the upper casing is less than a recess length of the waterproof-rubber outer-wall recess portion from the outer wall surface of the waterproof rubber; the inner wall surface of the upper casing is in contact with the outer wall surface of the waterproof rubber; and a gap is formed between a first portion of the upper casing projection which is most projecting in a lateral direction and a second portion of the waterproof-rubber outer-wall recess portion which is faced to the first portion in the lateral direction, wherein the lateral direction is defined as a horizontal direction from an inner wall surface of the upper casing toward an inside of the upper casing when the upper casing and the lower casing are respectively arranged on an upper side and a lower side in a vertical direction.