US 3,964,428 AGranted

Indicating device having a plurality of overturnable flaps

AssigneeCopal Company Limited

InventorKiyoyuki Arai

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Abstract

Indicating device comprising a plurality of overturnable indicating flaps bearing information on both sides thereof and rotatably mounted along the periphery of a rotating drum for indicating necessary information successively by one of the sides of the respective flap after the successive indication has been effected by the other side of the respective flap as the drum rotates, a guide plate having a guide hole for engaging with side edges of the respective flaps so as to guide the flaps with the same oriented in the tangential direction to the circumference of the drum as the drum rotates, a recess being formed in the circular guide hole for permitting the respective flaps to be overturned in the recess as the same is brought into the recess, and an actuating lever capable of engaging the respective flaps when brought into the recess so as to overturn the flaps within the recess. The actuating lever is supported rotatably in the indicating device and urged by a spring against the periphery of the drum so as to insure the positive engagement of the actuating lever with the respective flaps.

Indicating device comprising a plurality of overturnable indicating flaps rotatably mounted by their longitudinal central shafts along the periphery of a rotating drum, said flaps having indicating surfaces at their both sides, respectively, a guide plate located adjacent to one end of said drum and having a circular guide hole concentrically positioned with respect to the axis of said drum so as to engage at its inner periphery with side edges of the respective flaps which are parallel to the axis of said drum thereby guiding said flaps with the flaps being kept oriented in the tangential direction to the circumference of said drum as said drum rotates, said circular guide hole being formed at a portion thereof with a recess extending outwardly of the inner periphery of said circular guide hole so as to permit the respective flaps to be overturned about their longitudinal central shafts within said recess when the flaps are brought in succession to said recess as said drum rotates, an actuating lever pivotally supported by one end thereof upon a stationary portion of said indicating device and positioned adjacent to said one end of said drum so as to be swung in a plane parallel to said one end of said drum with the free end terminating within said recess, said actuating lever being formed with a lateral projection at its free end adapted to engage with the periphery of said one end of said drum within said recess as well as with the respective flaps when brought into said recess, and a spring connected between a stationary portion of said indicating device and said actuating lever so as to urge said lateral projection against the periphery of said one end of said drum in sliding contact therewith, thereby permitting said lateral projection to abut against the respective flaps in succession as said drum rotates so that the respective flap is positively overturned in said recess for exposing the indicating surface thereof which had been faced toward the interior of said drum.

Abstract

Claims6