JPS6150615B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum cleaner capable of compressing collected dust.

In the case of the type that compresses the dust accumulated in the dust collection case by sliding it in the compression direction opposite to the suction port, the compression plate is retracted to the suction port side during cleaning, so the suction You need to open your mouth. As a means for this purpose, there is a method in which openings corresponding to the suction holes are formed in the compression plate, since the compression effect decreases when the area of the compression plate is reduced. However, the purpose of compressing dust in the area facing the suction port has not been solved, and as a result,
Dust accumulates in the part of the dust collection case facing the suction port, making it difficult to suck in the dust, making it impossible to perform highly efficient cleaning.

The present invention provides a vacuum cleaner in which dust is compressed by moving a compression plate located on the suction port side in a free state in a direction away from the suction port.
The purpose of the present invention is to provide a vacuum cleaner that effectively compresses dust near a suction port and improves dust collection efficiency.

The present invention provides a bottomed cylindrical dust collection case having a suction port connected to a suction pipe in a negative pressure chamber connected to an electric blower and provided inside the main body case, and provides free space inside the dust collection case. In this state, the compression plate has an opening corresponding to the suction port, is biased to be located on the side of the suction port, and is moved in a direction away from the suction port by an operating portion protruding to the outside of the main body case. In the vacuum cleaner provided with the above, a shaft section that is erected along the moving direction of the compression board is fixed at a position different from the position of the opening of the compression board, and the shaft part is axially aligned with the bearing part. It is characterized in that it is mounted so as to be movable and rotatable in a direction, and that a turning mechanism is provided between the shaft portion and the operating portion to rotate the shaft portion as the operating portion moves in the axial direction. . That is, during cleaning, the compression plate is located on the suction port side, but the opening does not obstruct the inflow of air from the suction port, and when compressing dust, the compression plate slides in a rotating motion, so the dust collection case is closed. The structure is such that dust can be compressed over almost the entire area, thereby promoting dust collection.

An embodiment of the present invention will be described based on the drawings.
Reference numeral 1 denotes a main body case, and the main body case 1 is partitioned approximately in the middle by a partition wall 2, with one side serving as an electric chamber 4 for housing an electric blower 3, and the other side serving as a negative pressure chamber 5 with an upward opening. A dust collection case 8 having a suction port 7 into which a suction pipe 6 is inserted is detachably attached to the negative pressure chamber 5 by a clamp 9. A filter 10 is detachably attached around the dust collection case 8. A compression plate 12 is provided in the dust collection chamber 11 of the dust collection case 8. This compression plate 12 has an opening 14 corresponding to the suction port 7.
is formed on the outer periphery of the disk portion 13, and this disk portion 1
3, and a cylindrical portion 16 connected to the upper end of the shaft portion 15 has an upwardly threaded portion 17 formed therein. The shaft portion 15
is held by a boss 19 as a bearing formed on a support plate 18 provided in the middle of the dust collecting case 8 so as to be slidable in the vertical direction. A coil spring 20 is wound around the outer periphery of this shaft portion 15.
The hook portions 21 and 22 at both ends are engaged with the notch 23 of the boss 19 and the cylindrical portion 16. In other words, this coil spring 20 has the function of a compression spring that urges the compression plate 12 upward and the function of a torsion spring that urges it clockwise. moreover,
On the upper surface of the dust collection case 8, an operating section 25 having the shaft section 15 and a stem 24 positioned coaxially with the shaft section 15 is held so as to be prevented from rotating and slidable in the vertical direction. A pin 26 is provided upright on the stem 24 and comes into contact with the spiral portion 17, and together with the spiral portion 17, a turning mechanism is formed.

In such a configuration, when the suction pipe 6 is inserted and the electric blower 3 is driven, the suction flow sucked in from the suction port 7 flows through the opening 1 without being obstructed by the compression plate 12.
4, is sucked into the electric chamber 4 purified by the filter 10, and further flows out from an exhaust port (not shown). When the operating portion 25 is pressed, the compression plate 12 bends the spring 20 and descends to compress the dust. At this time, the compression plate 12 pivots counterclockwise due to a component force generated from the force of contact between the pin 26 and the spiral portion 17. Thereby, the position of the opening 14 is also deviated in the rotation direction from the position facing the suction port 7, and the dust can be compressed throughout the dust collection chamber 11. Therefore, the space above the dust collection chamber 11 is expanded and the dust collection action is promoted. When you release your hand from the operating part 25, the operating part 25 and the compression plate 12 return upward due to the compressive force of the spring 20, and the compression plate 12 returns clockwise due to the torsional force of the spring 20, thereby opening the opening 14 and the suction port 7.
matches.

Note that a pin 26 is provided on the inner circumference of the cylindrical portion 16 of the compression plate 12.
A spiral strip may be formed by a rib that engages with the rib.
Further, a spiral groove that engages with the pin 26 may be formed on the inner periphery of the cylindrical portion 16. In this case, the compression plate 12 can be pulled up even if the operating portion 25 is urged upward, and The spring 20 can provide a pivoting motion without being biased in the pivoting direction. Of course, a spiral groove or a protrusion such as a pin 26 is formed on the outer periphery of the shaft portion 15 of the compression plate 12 so that the stem 24 of the operating portion 25
It is also possible to form a cylindrical shaft and have a protrusion such as a pin 26 or a spiral groove formed on the inner periphery. Furthermore, the shaft portion 15 of the compression plate 12 may be used as an operating portion, and a protrusion and a spiral groove may be formed on the fitting surface between the shaft portion 15 and the boss 19. The means for imparting a spiral movement to the compression plate 12 in this manner is not limited to the embodiment.

Since this invention is configured as described above, the area of the compression plate can be increased because the opening of the compression plate opens the suction port when in use, and when compressing dust, the compression plate can be opened so that the opening opens the suction port. It is possible to slide in the compression direction while being deviated from the position corresponding to the rotation direction, which has the effect of compressing the dust throughout the dust collection chamber and promoting the dust collection action. It is something.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention.
The figure is a partially cutaway side view, and Figure 2 is a partially enlarged exploded perspective view showing the structure for rotating the compression plate.
FIG. 3 is a partially enlarged longitudinal sectional side view. 1... Body case, 3... Electric blower, 5...
Negative pressure chamber, 6... Suction pipe, 7... Suction port, 8... Dust collection case, 12... Compression plate, 14... Opening, 15
... shaft section, 19 ... boss, 25 ... operation section.

Claims (1)

[Claims] 1. A bottomed cylindrical dust collection case having a suction port connected to a suction pipe is provided in a negative pressure chamber connected to an electric blower and provided inside the main body case, and in the free state, the above dust collection case is installed. A compression plate is provided which has an opening corresponding to the suction port, is biased to be located on the side of the suction port, and is moved in a direction away from the suction port by an operating portion protruding from the outside of the main body case. In the vacuum cleaner, a shaft part erected along the moving direction of the compression plate is fixed at a position different from the position of the opening of the compression plate, and the shaft part is freely movable in the axial direction on a bearing part. A vacuum cleaner, wherein the vacuum cleaner is rotatably attached, and further includes a turning mechanism between the shaft portion and the operating portion, which rotates the shaft portion as the operating portion moves in the axial direction.