JPS61143264U - - Google Patents

Description

[Brief explanation of the drawing]

Figures 1 to 6 are diagrams showing an embodiment of the present invention, and Figures 1 to 3 are diagrams showing a schematic configuration and different operating states, with Figure a being a front view and Figure B being a cross-sectional view. Figure 4 is a partially enlarged view, Figure a is a front view, Figure b is a rear view, Figure c is a side view, Figure d is a partially exploded perspective view, Figure 5 is an end view of the magnetic tape, Figure 6 is a control system diagram. 1...Automatic reading device, 2...Pickup device, 3...Side plate, 4...Reading head, MT...Magnetic tape, 3a...Code mark.

Claims (1)

[Scope of utility model registration request] In an automatic code reading device for a circular article, in which n (positive integer) codes covering an angle range of α° are attached to the end face of the circular article, the circular article is fixed so that its center axis remains stably stationary. a circular article storage chamber that accommodates and supports the circular article; a code reading head that supports the code reading head at one end and is elastically biased so that the code reading head approaches the end surface of the circular article accommodated in the storage chamber; a support body which is attached to the code reading head; a roller element provided on the support body for maintaining a constant distance between the code reading head and the end of the circular article accommodated in the storage chamber; A rotation device that rotates the support body so as to rotationally move it around the central axis of the circular article, and a rotational movement angle range of (360°/n+α°) for the code reading head, and then reverse to return to the initial position. and a control circuit for controlling the rotating device as described above.