| 摘要 |
A rotatable display box 1 comprises a signage body, a means to mount the signage body to a fixed structure 16 in a manner to allow the signage body to be rotatable about an axis of rotation 6 and relative to the fixed structure 16, a means carried by the signage body for rotation about the axis of rotation 6 and a means interactive with the means carried by the signage body. The signage body includes at least two regions at or from each of which a signage substrate is or can be presented, which are disposed for viewing of the signage substrate from a location outwardly away from the axis of rotation. The interactive means is held stationary relative to any rotation of the signage body about the axis of rotation. One of the means carried by the signage body and the means interactive is a cam 13 and the other is a cam follower 14. The cam 13 presents a cam surface 19 to displace the cam follower 14 parallel to the axis of rotation 6, with the cam surface 19 including a number of cam surface depressions corresponding to the number of regions at or from which signage is or can be presented. The cam surface 19 depressions are located at intervals about the axis of rotation 6 corresponding to rotational locations of the signage box 1 to which the rotation is to be biased to, where the biasing to the locations is encouraged by the biasing of the cam follower 14 towards the cam surface of the cam.
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