Patent ID: 8253409
Filing Date: 2012-08-28
Classification: F16H,G01D

Abstract:
1. A range detection device attached to a control device that changes a gear position of an automatic transmission by a switching portion and configured to detect which range is selected in the gear position, the range detection device comprising: a movable member including a magnetic generating portion, the movable member being capable of moving with the switching portion; a supporting member including a plate portion having a surface that is opposed to the magnetic generating portion of the movable member, and a recess formed in a surface of the plate portion which is opposite from the movable member, the supporting member supporting the movable member such that the movable member is capable of moving parallel with the plate portion; a substrate placed in the recess substantially parallel with the plate portion and having a first hole that communicates between a surface of the substrate adjacent to the plate portion and an opposite surface of the substrate from the plate portion; a magnetic detection element installed to the surface of the substrate adjacent to the plate portion so as to correspond to a position of the first hole, the magnetic detection element being capable of detecting magnetism of the magnetic generating portion; and a sealing member filled in the recess and covering the substrate and the magnetic detection element.