Rotating switchable dial

Abstract

This device consists of a front panel, a middle panel, a back panel, and left and right locking plates. It is intended for use by attaching it to the glass at a store entrance, allowing for easy time display adjustment from inside the room. The middle panel and back panel are fastened together by a metal fitting in the center of the front panel, and the middle and back panels are rotated when used as a triple-layered unit. The left and right metal fittings fasten the front panel to the locking plate. Two circular holes in the front panel display a portion of the text printed on the middle panel. The middle panel consists of two circles, one large and one small, which can be rotated independently to easily change the display to any time in 5-minute increments. The tips of the locking plate fit into the wedge-shaped notches in the middle and back panels, ensuring accurate positioning and preventing accidental rotation. The tip of the locking plate points to the time displayed on the front panel. Reference Figure 1 shows the printing on the front side of the middle panel. As shown in the figure, it is composed of two circular panels, with a donut-shaped outer panel printed with a 24-hour clock. The inner disc is printed with a minute display in 5-minute increments. The inner disc is glued to the back panel and rotates in conjunction with the back panel. Reference Figure 2 shows the back view without the back panel. The 24-hour notation is printed in the notch on the outer intermediate panel. By releasing the locking plates as shown in the figure, each intermediate panel can be rotated freely. The locking plate in the upper left of Reference Figure 2 has a spacer of the same thickness as the intermediate panel sandwiched into the metal fittings to adjust the height so that the back panel can be locked. To rotate the intermediate panel, rotate the locking plate outward to release the lock, as shown in Reference Figure 2. By changing the labeling as shown in Reference Figure 3, it can be used for a variety of purposes.

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