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 (300A) for driving the dust dumping member by linking with the vertical movement of the handle.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects, and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings.

FIG. 1 is a perspective view of a vacuum cleaner in accordance with the present invention.

FIG. 2 is an illustrative view of an open body of the vacuum cleaner shown in FIG. 1.

FIG. 3 is a partial sectional view of the vacuum cleaner shown in FIG. 1.

FIG. 4 is a perspective view of a dust collecting container shown in FIGS. 1 and 2.

FIG. 5 is a perspective view of the dust collecting container seen from its back upward and obliquely shown in FIG. 4.

FIG. 6 is a sectional view of an upper circular wind pass for the dust collecting container of FIG. 4.

FIG. 7 is a perspective view of an essential portion of a dust removing unit, seen from the dust collecting container, mounted on a front wall of FIG. 2.

FIG. 8 A is a perspective view of an essential portion of a dust removing unit, seen from an electric blower, mounted on a front wall of FIG. 2.

FIG. 8 B is an illustrative view of a link removing unit of FIG. 8 A.

FIG. 9 is an illustrative view of operation of the dust removing unit of FIG. 7.

FIG. 10 is an illustrative view of operation of the dust removing unit of FIG. 8.

FIG. 11 is a perspective view representing a relationship between a handle of FIG. 7 and a cord reel brake unit.

FIG. 12 is a perspective view representing a relationship between a handle of FIG. 11 and a cord reel brake unit.

FIG. 13 is a perspective view of an expanded slider of FIG. 7.

FIG. 14 is an illustrative view representing a relationship between a dust dumping member mounted on a slider of FIG. 13 and a pleat filter.

FIG. 15 is a expanded perspective view of the pleat filter of FIG. 14.

FIG. 16 is an illustrative view of operation of the handle of FIGS. 7 and 8.

FIG. 17 is an illustrative view representing a relationship between a position of the handle of FIG. 16 and the dust dumping member of FIG. 14.

Claims

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; anda power transmission unit (300A) 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; andthe 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; andthe 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; andfurther comprising:a first guide (305a) 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; anda second guide (305b) 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; andthe 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.