JP3181469B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushion member mounted on an electric blower so as to extend from a front surface to a peripheral surface of an electric blower provided in a case body; The present invention relates to a vacuum cleaner having a plurality of ribs abutting on the cushion member so as to support a lower portion of the blower and extending along a thrust direction and a radial direction of the electric blower.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a case body 4 is formed by a pair of upper and lower cases 1 and 2, and a cover 3 covering an upper front part of a lower case 2, and is formed behind the case body 4. An electric blower 6 is installed in the motor room 5, and dust is sucked and stored in a dust collecting case (not shown) in a dust collecting chamber 7 formed in front of the case body 4 by the suction force of the electric blower 6. There is known an electric vacuum cleaner 8 adapted to do so.

As shown in FIG. 4, the lower case 2 located near the front of the motor room 5 has a rib 2a having an arc-shaped end face extending along a radial direction perpendicular to the axis J of the electric blower 6, A plurality of ribs 2b extending along a thrust direction along the axis J of the electric blower 6 are formed. Further, a rib 2c extending in the radial direction is formed in the lower case 2 located near the rear of the motor room 5.

[0004] A cushion member 9 is attached to the front of the electric blower 6 so as to extend from the front surface to the peripheral surface, and a support rubber 10 is attached to the rear of the electric blower 6. The front of the electric blower 6, as shown in FIG. 3, in a state of mounting the cushion member 9, the lower rib of the cushion member 9 2
a and the ribs 2b, 2b ... are mounted in a mounted state, and the rear side of the electric blower 6 is mounted by mounting the supporting rubber 10 and the lower side of the supporting rubber 10 abuts on the rib 2c. Supported in state.

[0005]

By the way, in the vacuum cleaner 8 configured as described above, the vibration accompanying the driving of the electric blower 6 is transmitted mainly to the rib 2a in the radial direction, and the vibration is generated. Are vibrated by vibrating the entire body, so that there is a problem that the vibration of the main body case 4 is large and the resulting vibration noise is also large.

[0006] For example, when the rotational speed of the electric blower 6 is 30,000 rpm, the vibration sound has a frequency of about 50
This corresponds to a sound of 0 Hz, which is a very large noise value.

As a structure for supporting the front of the electric blower in addition to the above, only a plurality of ribs (corresponding to ribs 2b, 2b ...) Extending in the thrust direction are formed, and ribs (ribs 2a) extending in the radial direction are formed. However, in such a structure, since the vibration accompanying the driving of the electric blower is transmitted to the rib extending in the thrust direction to vibrate the main body case, the above-described vibration and vibration noise Is also large.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a vacuum cleaner capable of preventing vibration of a case body and vibration noise caused by driving of an electric blower. .

[0009]

According to the present invention, in order to achieve the above object, a cushion member mounted on the electric blower so as to extend from the front surface to the peripheral surface of the electric blower provided in the case body, An electric vacuum cleaner comprising: a plurality of ribs formed on the case main body and abutting on the cushion member to support a lower portion of the electric blower and extending along a thrust direction and a radial direction of the electric blower. The point is that a step is formed on the cushion member so as to avoid contact with a rib extending in a radial direction among the plurality of ribs.

[0010]

In such a configuration, the cushion member is mounted on the electric blower provided in the case main body so as to extend from the front surface to the peripheral surface, and extends along the thrust direction and the radial direction of the electric blower. A rib is formed on the case body, and a step is formed on the cushion member to avoid contact with a radially extending rib of the plurality of ribs.

[0011]

Next, an embodiment of a vacuum cleaner according to the present invention will be described with reference to FIGS.

In FIG. 2, a vacuum cleaner 11 includes a case body 12 and an electric blower 1 provided in the case body 12.
3, a cushion member 14 made of an elastic body such as rubber and the like mounted on the front of the electric blower 13, and a support rubber 15 mounted on the back of the electric blower 13.

The case body 12 includes a lower case 16 that opens upward, an upper case 17 that closes the rear opening of the lower case 16, and a cover 18 that closes the front opening of the lower case 16. The electric blower 13 is located in a motor chamber 19 formed by the lower case 16 and the upper case 17, and is provided in a dust collection chamber 20 formed by the lower case 16 and the cover 18 by suction of the electric blower 13. Dust and the like are sucked and stored in a dust collection case (not shown).

As shown in FIG. 1, the lower case 16 near the front of the motor room 19 has a rib 16 a extending in the radial direction of the electric blower 13 and a plurality of ribs (only one shown in the drawing) extending in the thrust direction of the electric blower 13. ) Rib 16b
Are formed to protrude upward. A rib 16c extending in the radial direction of the electric blower 13 is formed on the lower case 16 on the rear side of the motor chamber 19 so as to protrude upward. The ribs 16a and 16b have substantially the same structure as the ribs 2a and 2b of FIG. 4 disclosed in the related art.

The cushion member 14 is formed so as to extend from the front surface to the peripheral surface of the electric blower 13, and a lower portion thereof contacts the rib 16b. Also, the cushion member 1
The 4, step portions 14a for avoiding contact between Li blanking 16a
Are formed.

The lower part of the supporting rubber 15 is a rib 1.
The electric blower 13 is mounted on the case body in the electric motor room 19 in cooperation with the contact of the cushion member 14 with the rib 16b. Since the electric blower 13 has its center of gravity located forward of the center, the rib 16
The support by b, 16c has a higher specific gravity on the rib 16b side.

In the above configuration, when the electric blower 13 is driven, dust and the like are sucked and stored in the dust collecting case in the dust collecting chamber 20 via a tube (not shown) by the suction action.

On the other hand, the vibration accompanying the driving of the electric blower 13 is once transmitted to the rib 16b and then transmitted to the case body 12 while being dispersed from the rib 16b to the rib 16a and the base of the rib 16b. Therefore, the vibration of the case main body 12 can be suppressed, and the generation of the vibration sound is also reduced.

[0019]

As described above, in the vacuum cleaner of the present invention, the cushion member is formed with the stepped portion so as to avoid contact with the radially extending rib of the plurality of ribs. By virtue of this, it is possible to prevent the case body from generating vibration and vibration noise due to driving of the electric blower.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view showing a main part of a vacuum cleaner according to the present invention.

FIG. 2 is a side view of the vacuum cleaner with a part thereof cut away.

FIG. 3 is an enlarged cross-sectional view showing a main part of a conventional vacuum cleaner.

FIG. 4 is an enlarged perspective view of a main part showing the structure of a rib.

FIG. 5 is a side view of the vacuum cleaner with a part thereof cut away.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Vacuum cleaner 12 ... Case main body 13 ... Electric blower 14 ... Cushion member 16 ... Lower case 16b ... Rib (thrust direction) 16a ... Rib (radial direction)

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A47L 9/00

Claims (1)

(57) [Claims] A cushion member mounted on the electric blower so as to extend from a front surface to a peripheral surface of the electric blower provided in the case main body, and a lower part of the electric blower formed on the case main body to support the lower part of the electric blower. A plurality of ribs abutting on the cushion member and extending along the thrust direction and the radial direction of the electric blower, wherein the cushion member extends in the radial direction among the plurality of ribs An electric vacuum cleaner, wherein a step is formed so as to avoid contact with a rib.