Patent ID: 8714036

Claim:
A dummy for testing whether inside dimensions of receiving spaces defined in an enclosure for receiving electrical elements are qualified or not, the dummy comprising: a rectangular frame to be inserted into each of the receiving spaces, the frame comprising a bottom wall and a plurality of wheels rotatably installed to opposite sides of the bottom wall, the frame having a width and a height respectively equal to a minimum desirable value of an inside width and inside height of one of the receiving spaces; and a handle attached to a front end of the frame, to be manipulated to insert the frame into the receiving spaces; wherein the opposite sides of the bottom wall forms a plurality of installing portions, the wheels are respectively rotatably installed to the corresponding installing portions, and a bottom of each wheel protrude out of a bottom of the bottom wall; wherein each installing portion comprises a hole defined in the bottom wall and extending through the opposite sides of the bottom wall, a plurality of screws respectively extends through the wheels and the corresponding holes of the frame, to engage in a plurality of nuts, thereby rotatably mounting the wheels to the bottom wall of the frame; and wherein each wheel comprises a rolling portion and a extension portion extending from a side of the rolling portion, a through hole is axially defined in the wheel through the rolling portion and the extension portion, the through hole comprises a first hole defined in the rolling portion and a second hole defined in the extension portion and less than the first hole in diameter, each screw comprises a head received in the first hole.