| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a dynamo speed meter for railway vehicle having a structure capable of effectively preventing a lubrication oil from leaking to the outside over a long period of time.SOLUTION: The dynamo speed meter for railway vehicle includes a power generation part 2 inserted and arranged inside a gear box so as to face a tooth 12a of a gear 12 through a window hole 13 formed on the gear box 11, and inductively generates power accompanied with a rotation of the gear in the power generation part. The dynamo speed meter includes a lid body 3 fixed on an outer surface of the gear box so as to close the window hole. The power generation part is fixed on an inner surface of the lid body via a resin layer 4, and is connected to a terminal block 5 provided outside of the gear box through a through-hole 31 opened in the lid body by a lead wire extending through the resin layer from the power generation part. A bush 7 made of an elastic member formed with a hole 71 into which a lead wire is inserted with an interference is pressed in the through-hole. The bush has a flange part 72 which is brought into contact with the outer surface of a through-hole formation part of the lid body, and is coated with an adhesive agent 8a on a contact surface with the through-hole of the bush, and is coated with an adhesive agent 8b so as to cover the flange part.</p> |
