JPH06148A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To prevent damage of a flow passage, and to regulate floating-up of a cover by providing the flow passage of air for communicating with a suction port and a motor-driven fan containing chamber on the side face of a main body, covering an opening of this flow passage with a cover, and covering the side face of the flow passage and the cover with a bumper. CONSTITUTION:A flow passage 11 whose cross section is roughly a U-shape, formed in the upper part of the lower case 2 of a cleaner main body 1 communicates with a motor-driven fan containing chamber and an inflow port of a suction port 8, and an opening of the upper face of the flow passage 11 is covered with a cover 18 whose cross section is roughly a U-shape Also, a bumper 19 made of an elastic material is provided in the outer periphery of the cleaner main body 1 in a state of covering the side face of the flow passage 11, and formed integrally with a buffer part 20. Moreover, the bumper 19 covers the upper face of the cover 18, and also, is formed from a packing part 21 for holding airtightly the lower case 2 and a dust collecting cover 7. As a result, a shock from the outside to the bumper 19 is buffered, damage of the flow passage 11 is prevented, or it is regulated so that the cover 18 flexes and floats up, and air leakage is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner having a function to circulate air in a cleaner body and to control harmful insects such as mites in the dust collecting chamber by the heat thereof.

[0002]

2. Description of the Related Art Heretofore, as an electric vacuum cleaner of this kind, one having a circulation path formed by using a bumper formed on a side surface of a vacuum cleaner body is disclosed in Japanese Utility Model Publication No. 3-66341 (A47L 7/04). Is known.

In FIGS. 8 to 10 of the above publication, in order to simplify the structure, a flow passage having an upper surface opening is formed integrally with a cleaner body, and a bumper is attached so as to cover the flow passage. The configuration is shown.

However, since the temperature of the air flowing through the flow path becomes high, the heat causes the flow path to be deformed, resulting in a decrease in circulation efficiency due to the narrow deformation of the flow path and a defective seal due to the expansion deformation of the flow path. There was a drawback that air leakage occurred. Further, since the strength of the flow path is low, there is a possibility that the flow path may be deformed or damaged due to a collision during the cleaning operation.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above drawbacks, and an object of the present invention is to provide an electric vacuum cleaner in which the flow path is not deformed.

[0006]

According to the present invention, there is provided a cleaner main body having a suction port at a front portion, a dust collection chamber communicating with the suction port, and an electric blower storage chamber for storing an electric blower at a rear portion, and the cleaning unit. A flow path for air, which is formed on the side surface of the machine body and has a substantially U-shaped cross section, that communicates with the suction port and the electric blower storage chamber, a cover that covers the opening of the flow path, and a side surface of the cleaner body. A bumper that is disposed and covers the side surface of the flow path and the cover is provided.

[0007]

According to the present invention, since the bumper is arranged so as to cover the side surface of the flow path and the cover, the shock from the outside of the flow path is buffered, damage to the flow path is prevented, and the shock is applied from the outside of the flow path. In this case, the cover provided so as to cover the opening of the flow path is prevented from rising and air leakage is prevented.

After cleaning, the electric blower is driven,
When the air in the cleaner body is circulated in the order of the electric blower housing chamber, the flow path, the suction port, and the dust collecting chamber, the air in the cleaner body is gradually heated by the heat of the electric blower, and the heated air is heated. Since the gas passes through the flow path, the flow path is easily deformed by heat, but since the cover is arranged so as to cover the opening of the flow path, the deformation of the flow path is prevented.

[0009]

An embodiment of the present invention will be described in detail below with reference to the drawings.

A vacuum cleaner body 1 comprises a lower case 2 and an upper case 3, and a dust collecting chamber 4 for storing a dust collecting bag A in front thereof.
An electric blower storage chamber 6 for accommodating the electric blower 5 is provided on the rear side. Reference numeral 7 denotes a dust collecting lid that is openably and closably closed above the dust collecting chamber 4, and the dust collecting lid 7 is opened to attach and remove the dust collecting bag.

Reference numeral 8 denotes a suction port formed in the front portion of the cleaner body 1 so as to communicate with the dust collection chamber 4, and the opening of the suction port 8 is covered by a shutter 9 so as to be openable and closable. Do not connect the bellows hose detachably.

Reference numeral 10 denotes an inflow port formed on the side of the suction port 8 so that air from the electric blower housing chamber 6 flows into the suction port 8 via a flow path 11 described later.

Reference numeral 11 is a flow path formed in the upper part of the lower case 2 of the cleaner body 1 and having a substantially U-shaped cross section, and is composed of a wall surface 12 of the lower case 2 and ribs 13 provided upright on the outside of the wall surface 12. And communicates with the electric blower storage chamber 6 and the inflow port 10 of the suction port 8. Reference numeral 14 is a locking groove formed on the upper end surface of the rib 11, 15 is a locking groove formed on the upper end surface of a support piece 16 formed in an appropriate number of places on the wall surface 12 of the lower case 2, and the locking groove is formed. 1
A cover 18, which will be described later, is locked to the parts 4 and 15.

Reference numeral 17 denotes a reinforcing rib vertically provided on the inner surface of the lower case 2 so as to prevent deformation of the side wall of the lower case 2.

Reference numeral 18 denotes a cover having a substantially U-shaped cross section which covers the upper opening of the flow path 11, and the rib 13 and the wall surface 12 of the lower case 2.
It is adapted to be engaged with engaging grooves 14 and 15 respectively formed in the supporting piece 16.

Reference numeral 19 is a bumper made of an elastic material, which is a cushioning portion 20 provided on the outer periphery of the cleaner body 1 so as to cover the side surface of the flow path 11.
And a packing part 21 which is integrally formed with the buffer part 20 and covers the upper surface of the cover 18 and hermetically holds the lower case 2 and the dust collecting lid 7. 22 is the buffer section 20
A protrusion integrally formed on the inner surface of the bumper contacts the outer surface of the flow path 11 when mounted so as to cover the flow path 11.
The shock from the outside to 19 is buffered and the breakage of the flow path 11 is prevented.

Reference numeral 23 denotes a resin frame body, which is formed in a substantially L-shaped cross section, and is attached to the packing portion 21 of the bumper 19 integrally with the upper end of the lower case 2 over the entire circumference. It is arranged.

Thus, when assembling, the lower case 2 wall surface
A cover 18 is attached to the support pieces 16 of 12 and locking grooves 15 and 14 formed in the upper portion of the rib 13, and the opening of the flow path 11 is covered with the cover 18.

Then, the bumper 19 is integrally attached to the frame 23, the cushioning portion 20 is arranged on the outer surface of the flow path 11, and the packing portion 21 is arranged on the upper portion of the cover 11. At this time, the protrusion 22 integrally formed inside the buffer portion 20 of the bumper 19 abuts the outer surface of the flow path 11 to cushion the impact from the outside, and the packing portion 21 arranged at the upper end of the lower case 2 collects the fluid. Dust cover 7
And the lower case 2 are kept airtight.

Further, since the bumper 19 to which the frame body 23 is integrally attached is disposed on the upper portion of the cover 18, the ribs 13 cause the rib 13 to be provided when an impact is applied from the outside of the flow path 11.
The cover 18 is restrained from being lifted up inwardly to prevent air leakage.

After cleaning, a bellows hose (not shown) is removed from the suction port 8 and the shutter 9 is closed, and a micro switch (not shown) provided in the vicinity of the suction port 8 is turned on and the electric blower 5 is turned on. The air in the cleaner body 1 that is driven is circulated in the order of the electric blower housing chamber 6, the flow path 11, the suction port 8 and the dust collecting chamber 4, and the heat of the electric blower 5 causes
The air in the cleaner body 1 is gradually heated. When the temperature inside the dust collection chamber 4 reaches a predetermined temperature (a temperature at which harmful insects such as mites die: about 60 ° C.), a sensor (not shown) detects it and the electric blower 5 stops.

During the above-mentioned pest control, since heated air passes through the flow path 11, the ribs 13 of the flow path 11 and the wall surface 12 of the lower case 2 are easily deformed by heat. 12
Since the cover 18 is locked in the locking grooves 14 and 15 formed in, the lateral deformation of the rib 13 and the wall surface 12 is restricted.

[0023]

According to the present invention, since the bumper is arranged so as to cover the side surface of the flow path and the cover, the shock from the outside of the flow path is buffered, damage to the flow path is prevented, and the shock from the outside of the flow path is prevented. It is possible to prevent the cover, which is arranged so as to cover the flow path opening, from floating when air is added, and prevent air leakage.

After the cleaning, the electric blower is driven,
When the air in the cleaner body is circulated in the order of the electric blower housing chamber, the flow path, the suction port, and the dust collecting chamber, the air in the cleaner body is gradually heated by the heat of the electric blower, and the heated air is heated. Since the gas passes through the flow path, the flow path is easily deformed by heat, but since the cover is arranged so as to cover the opening of the flow path, the deformation of the flow path is prevented.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of essential parts of a cleaner body showing an embodiment of the present invention.

FIG. 2 is a top view of the cleaner main body with an upper case removed.

FIG. 3 is a vertical sectional view of the cleaner body.

FIG. 4 is a top view of the same cleaner body.

[Explanation of symbols]

 1 Vacuum cleaner body 4 Dust collection chamber 5 Electric blower 6 Electric blower storage room 8 Suction port 11 Flow path 18 Cover 19 Bumper

Claims (1)

[Claims] 1. A cleaner body having a suction port at a front portion and a dust collection chamber communicating with the suction port, and an electric blower storage chamber for storing an electric blower at a rear portion, and a cleaner body formed on a side surface of the cleaner body, A flow path of air having a substantially U-shaped cross section that communicates with the suction port and the electric blower storage chamber, a cover that covers the opening of the flow path, and a side surface of the flow path that is disposed on a side surface of the cleaner body. And a bumper covering the cover.