(57) A motor overload preventing apparatus for a vacuum cleaner includes a damper body
and an resilient member. The damper body has an opening/closing portion formed on
one end, to selectively block a tapered aperture of a body frame of the vacuum cleaner,
and the opening/closing portion is tapered to correspond in shape with the aperture.
The resilient member resiliently biases the opening/closing portion toward a direction
of closing the aperture. The damper body is movably disposed to rotate so as to selectively
open and close the aperture, and to this end, it is preferred that the damper body
is connected by a hinge to the body frame. Satisfactory sealing can be ensured even
when there is surface contact between the opening/closing portion and the aperture
without requiring additional material, such as a rubber. Additionally, the number
of components can be reduced, and with the omission of flexible material, such as
rubber, the manufacturing costs can be reduced.
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