Vacuum cleaner

Abstract

The vacuum cleaner includes a vacuum cleaner body ( 20 ) having a dust collector ( 60 ) and an electric blower ( 33 ) for producing an intake negative pressure in the dust collector, a filter ( 100 ) for separating dust absorbed in the dust collector with air by the negative pressure, and a dust dumping member ( 304 ) for dumping the dust attached to the filter by vibrating the filter. Moreover, the vacuum cleaner includes a handle ( 200 ) mounted on the vacuum cleaner body for carrying the vacuum cleaner body, the handle being movable in a vertical direction between a storing position and a using position; a storage spring ( 323 ) for energizing the handle to the storing position; and a power transmission unit ( 300 A) for driving the dust dumping member by linking with the vertical movement of the handle.

1 . A vacuum cleaner for collecting dust, comprising:
 a vacuum cleaner body ( 20 ) including a dust collector ( 60 ) and an electric blower ( 33 ) for producing an intake negative pressure in the dust collector;   a filter ( 100 ) for separating dust absorbed in the dust collector with air by the negative pressure;   a dust dumping member ( 304 ) for dumping the dust attached to the filter by vibrating the filter;   a handle ( 200 ) mounted on the vacuum cleaner body for carrying the vacuum cleaner body, the handle being movable in a vertical direction between a storing position on a surface of the vacuum cleaner body at which the handle is stored and a using position to which the handle is lifted upward;   a storage spring ( 323 ) for energizing the handle to the storing position; and   a power transmission unit ( 300 A) for driving the dust dumping member by linking with the vertical motion of the handle.   
   
   
       2 . A vacuum cleaner as recited in  claim 1 , wherein the dust dumping member reciprocates by linking with the vertical motion of the handle. 
   
   
       3 . A vacuum cleaner as recited in  claim 2 , wherein:
 the dust dumping member and the filter produce a first load therebetween when the handle is moved upward by a manual operation;   the dust dumping member and the filter produce a second load therebetween when the handle is moved down to the storing position by the storage spring; and   the second load is determined to be smaller than the first load.   
   
   
       4 . A vacuum cleaner as recited in  claim 3 , wherein:
 the filter is a pleat filter in which a multiplicity of folds having crests and troughs extending in the vertical direction are arranged in the horizontal direction; and   the dust dumping member is provided to be able to reciprocate in the direction in which the folds are arranged, by linking with the vertical motion of the handle; and   further comprising:   a first guide ( 305   a ) provided in the dust dumping member for going one way by linking with the motion of the handle when the handle is moved upward by a manual operation and for sequentially striking the folds; and   a second guide ( 305   b ) provided in the dust dumping member for returning by linking with the motion of the handle when the handle is moved downward by the storage spring and for sequentially striking the folds weaker than the first guide.   
   
   
       5 . A vacuum cleaner as recited in  claim 3 , wherein:
 the filter is a pleat filter in which a multiplicity of folds having crests and troughs extending in the vertical direction are arranged in the horizontal direction;   the dust dumping member is provided to be able to reciprocate in the direction in which the folds are arranged, by linking with the vertical motion of the handle; and   the dust dumping member is provided to return by linking with the handle when the handle is moved downward by the storage spring, and to be rotatable in the direction opposite to the returning direction.