INDICATOR WITH LOAD EQUIPPED WITH POWER SUPPLY DEVICE, LIGHT EMITTING NEEDLE AND POWER SUPPLY DEVICE OF THE SAME INDICATOR

摘要

PURPOSE:To successively supply the power supplied to one indicator to other indicator by simple constitution by bringing a pair of contact pieces for supplying power for driving a ring-shaped conductor and the load provided to the indicator to the electrical continuity state with said conductor. CONSTITUTION:Two ring-shaped conductors 3, 4 and a pair of contact pieces 5, 6 are brought to an electrical continuity state. When power is supplied from a drive circuit, a ring-shaped fixed conductor 13 is brought to a continuity state from a lead wire 19a and further brought to the continuity state with the contact piece 6 by the contacts 6a, 6b sliding on said fixed conductor and subsequently electrically connected to one lead-out electrode 10b of load 10 and, at the same time, a ring-shaped fixed conductor 14 is brought to the continuity state with the contact piece 5 by the contacts 5a, 5b sliding on said fixed conductor 14 from a lead wire 19b and subsequently brought to the continuity state with the other lead-out electrode 10a of the load 10 to supply power to the load 10 of a hr hand 1. Subsequently, power is supplied to the load of a min hand 21 from the contact piece 6 through the ring shaped conductor 4 and a contact piece 25. By this method, power can be successively supplied to many indicators positioned in a superposed state at the same axial position.