JPH08336488A - Vacuum cleaner - Google Patents

Abstract

PURPOSE: To provide a vacuum cleaner easily disassembled even if the cleaner main body case comprises vertically separable cases, an upper case and a lower case. CONSTITUTION: This vacuum cleaner is provided with a main body case 26 composed of vertically separated upper and lower cases of 28 and 29. A dust collecting room 33 is formed opening upward in front of the main body case 26. An extended wall 40 is constructed along the upper case 28 toward an open end of the dust collecting room 33. A bumper rubber 52 along the extended wall 40 has a shock absorbing part 52b attached on the outside face of the extended wall 40 and an upper seal part attached on the upper face of the extended wall 40 and a lower seal part 52c attached on the underside face of the extended wall 40. A gap between the extended wall 40 of the upper case 28 and a lid body 27 is air-tightly sealed by an upper seal part 52a and a gap between the extended wall 40 of the upper case 28 and the lower case 29 is air-tightly sealed by the lower seal part 52c.

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 in which a bumper rubber is attached to a side surface of a main body case of a vacuum cleaner main body.

[0002]

2. Description of the Related Art As an electric vacuum cleaner of this type, one shown in FIG. 6 is considered. The electric vacuum cleaner has a cleaner body 1 and a suction port body connected to the connection port 2 of the vacuum cleaner body 1 via a dust collecting hose, an extension pipe, and the like (not shown).

The cleaner body 1 is provided with a dust collection case 3 and an electric fan (not shown), and the dust collection case 3 is provided with a body case 4 and a lid 5. A lid 5 for opening and closing the dust collecting chamber 4a on the front side of the main body case 4, and a dust collecting hose which is provided in the main body case 4 and is connected to the connection port 2 by generating a negative suction pressure in the dust collecting chamber 4. It has an electric fan (not shown) for collecting dust from the inside of the dust collecting chamber 4a.

The body case 4 is composed of an upper case 6 and a lower case 7 which are vertically divided. And
The upper case 4 is provided with an air passage wall (bulging extension wall) 8 having an inverted U-shaped section that extends along the open end of the dust collection chamber 4, and the lower case 7 has a U-shaped section at the upper front side. An air passage wall 9 is provided so as to face the air passage wall 8, and an exhaust chamber 10 of an electric fan (not shown) and a front portion of the dust collection chamber 4 are provided between the air passage walls 8 and 9. A circulation path 11 for communication is formed. Moreover, the outsides of the air passage walls 8 and 9 are covered with a bumper rubber 12 having a C-shaped cross section.

[0005]

By the way, in such a configuration, "exhaust air from the electric fan is made to flow into the dust collecting chamber 4a from the front portion of the dust collecting chamber 4a, and the exhaust air is discharged by the electric fan. By repeating the process of sucking air, cooling the inside of the electric fan, and then exhausting it, the temperature inside the dust collection chamber is raised by the heat of the exhaust gas from the electric fan, and this heat collects the dust inside the dust collection chamber. I try to kill the mites in the dust.

However, since the bumper rubber 12 is mounted across both air passage walls 8 and 9 forming the circulation passage 11, it is necessary to disassemble the upper case 6 and the lower case 7 of the main body case 4. , Its disassembly work is not easy.

Therefore, an object of the present invention is to provide an electric vacuum cleaner which can be easily disassembled even when the main body case is composed of an upper case and a lower case which can be disassembled vertically.

[0008]

In order to achieve this object, the invention of claim 1 is provided with a main body case composed of an upper case and a lower case which are divided into upper and lower parts, and the front part of the main body case is provided. A dust collection chamber that opens upward is formed in the portion, an extension wall that extends along the open end of the dust collection chamber is provided in the upper case, and a bumper rubber that extends along the extension wall is provided. In the electric vacuum cleaner provided on the side surface of the main body case, the bumper rubber has a shock absorbing portion attached to an outer surface of the extending wall and an upper seal portion attached to an upper surface of the extending wall, and There is a lower seal part attached to the lower surface of the extended wall, and the space between the extended wall of the upper case and the lid is hermetically sealed by the upper seal part, and the extended wall of the upper case and the lower case. Is sealed airtightly by the lower seal part between And it is characterized in that the vacuum cleaner has.

In order to achieve the above-mentioned object, the invention of claim 2 is provided with a main body case which is composed of an upper case and a lower case which are divided into upper and lower parts, and which is opened upward at the front part of the main body case. A dust collection chamber is formed, an extension wall extending along the open end of the dust collection chamber is provided in the upper case, and a fan chamber communicating with the dust collection chamber is formed in a rear portion of the main body case. An electric fan is provided in the fan chamber, an open end of the dust collection chamber to an upper portion is provided to be openable / closable by a lid, and a bumper rubber along the extended wall is provided on a side surface of the main body case. In the electric vacuum cleaner described above, the extended wall has an upper inner wall portion and an upper outer wall portion that are connected to each other at an upper portion, and a side wall of the lower case that corresponds to the dust collecting chamber is connected to each other at a lower portion. Has a lower inner wall portion and a lower outer wall portion, The exhaust side of the electric fan and the front part of the dust collection chamber are communicated with each other between the both side wall parts of the lower case and the both side wall parts of the lower case, and the exhaust gas of the electric fan is introduced into the front part of the dust collection chamber. A circulation path for circulation is formed, the bumper rubber has an impact absorbing portion attached to an outer surface of the upper outer wall portion, and an upper seal portion and the upper outer portion attached to an upper surface of the extending wall. There is a lower seal part attached to the lower surface of the wall part, and an airtight seal is provided between the extending wall of the upper case and the lid by the upper seal part, and the lower edge and the lower outer side of the upper outer wall part. The electric vacuum cleaner is airtightly sealed between the upper edge of the wall portion and the lower seal portion, and airtightly sealed between the inner sidewall portions by an inner seal member interposed therebetween. Is characterized by.

[0010]

According to this structure, the bumper rubber has the shock absorbing portion attached to the outer side surface of the extending wall and the upper seal portion attached to the upper surface of the extending wall and the lower surface of the extending wall. Since the lower seal portion is provided, the upper case can be separated from the lower case integrally with the bumper rubber. Moreover, the number of sealing points between the lid, the upper case, the lower case, etc. is reduced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 2 is a perspective view showing the whole of the electric vacuum cleaner according to the present invention. This electric vacuum cleaner includes a cleaner body 20, a flexible dust collecting hose 21 connected to the cleaner body 20, a plurality of extension pipes 22 connected to the dust collecting hose 21, and a tip of the extension pipe 22. Inlet 2 connected to
3 In FIG. 2, 21 a is a connection pipe integrally provided at the base end of the dust collecting hose 21 for connecting the dust collecting hose 21 to the cleaner body 20.

The cleaner body 20 has a dust collecting case 24 and an electric fan 25 as shown in FIG. This electric fan 25 (electric blower) is a centrifugal fan 25a.
And a motor 25b (electrically operated part) for driving the centrifugal fan 25a. Moreover, the centrifugal fan 25a
The air (air) sucked from the suction port 25c of the motor 25b absorbs heat generated in the internal coil by flowing through the motor 25b, and the air is exhausted from the exhaust hole 25d on the peripheral surface of the motor 25b.
Exhausted out of b.

The dust collection case 24 is provided with a main body case 26 and a lid 27, and the main body case 26 is composed of an upper case 28 and a lower case 29 which are vertically divided. A filter 30 and a partition wall 31 are provided at an intermediate portion in the front-rear direction of the main body case 26 with a space provided in the front-rear direction, and a suction chamber 32 is formed between the filter 30 and the partition wall 31.

A dust collection chamber 33 that opens upward is formed in the front portion of the body case 26, and a fan chamber (blower chamber) 34 is formed in the rear portion of the body case 26, and the dust collection chamber 33 and The fan chamber 34 communicates with each other via the filter 30 and the suction chamber 32. The electric fan 25 is installed in the fan chamber 34 with the suction port 25c facing the suction chamber 32.
A support rubber ring 37 also serving as a seal is disposed between the centrifugal fan 25a and the peripheral wall 36 of the fan chamber 34. Thereby, the suction chamber 32 and the fan chamber 34
Communicate with each other via an electric fan 25. The fan chamber 34 communicates with the atmosphere via an exhaust passage (not shown) provided in the fan chamber rear wall portion 34a, an exhaust filter 38, an exhaust port (not shown) provided in the rear wall 29a, and the like. With
It communicates with a circulation path 39 provided around the peripheral wall 36 through a communication port 36 a provided in the peripheral wall 36.

In the upper case 28, an extending wall 40 extending along the open end of the dust collecting chamber 33 as shown in FIG. 1 (c) and FIGS.
Is provided. The extended wall 40 is the upper inner wall portion 40.
a, the upper outer wall portion 40b, and the both side wall portions 40a, 40
It has the upper wall part 40c which has mutually connected the upper edges of b. Further, the side wall 4 corresponding to the dust collecting chamber 33 of the lower case 29
1 has a lower inner wall portion 41a and a lower outer wall portion 41b whose lower portions are connected to each other. Moreover, the space between the both side wall portions 40a and 40b of the extended wall 40 and the both side wall portions 41 of the lower case 29.
By connecting the exhaust side of the electric fan 25, that is, the rear part of the fan chamber 34 and the front part of the dust collecting chamber 33 to each other via a circulation path 39 provided in the main body case 26 between a and 41b. A circulation path 42 that circulates the exhaust gas of the electric fan 25 in the front portion of the dust collection chamber 33 is formed. 1 in FIG.
Reference numeral 3 denotes an inclined surface provided on an upper portion of the front wall 33a of the dust collection chamber 33 and inclined rearward. The inclined surface 43 has circulation ports 44, 44 for communicating the circulation path 42 with the front portion of the dust collection chamber 33. Are formed.

A mouth frame holder 45 is mounted on the front wall 33a as shown in FIGS. 1 (a) and 2 (b), and the mouth frame holder 45 is mounted as shown in FIGS. 2 (b) and 4. The mouth frame 46a of the paper pack filter 46 is detachably held in the direction of arrow 47. Moreover, the pipe connection port 27a provided in the lid 27
By fitting the connection pipe portion 21 shown in FIG. 2 into the connection pipe 21a, the connection pipe 21a is fitted into the connection hole 46b provided in the mouth frame 46a. This pipe connection port 27a
Is provided so as to be opened and closed by a slide type shutter 48 in the direction of arrow 48a. Incidentally, 48b is a shutter 48
This is the operation knob of.

The upper inner wall 40a of the upper case 28 described above.
The inner seal member 50 made of rubber or the like fixed to the upper inner side wall 40a is provided between the lower inner side wall 41a and the lower inner side wall 41a of the lower case 29.
Is interposed to seal between the inner wall portions 40a and 41a. The inner seal member 50 is airtightly attached and fixed to the lower portion of the upper inner side wall portion 40a by adhesion, or is airtightly and integrally formed when the upper case 28 is injection-molded.
May be provided. A bumper rubber 52 is attached to the extended wall 40. The bumper rubber 52 has an upper seal portion 52 attached to the upper wall portion 40c of the extended wall 40.
a, a shock absorbing portion 52b attached to the outer surface of the upper outer wall portion 40b of the extending wall 40, and a lower seal portion 52c attached to the lower surface 40d of the upper outer wall portion 40c of the extending wall 40. The lower seal portion 52c of the bumper rubber 52 seals between the outer side wall portions 40b and 41b. The bumper rubber 52 may be airtightly attached and fixed to the extended wall 40 by adhesion, or may be provided airtightly and integrally with the upper case 28 when the upper case 28 is injection-molded.

Next, the operation of the electric vacuum cleaner having such a structure will be described.

As described above, the bumper rubber 52 is
The shock absorber 42b is attached to the outer surface of the extending wall 40, and the upper seal portion 52a is attached to the upper surface of the extending wall 40 and the lower seal portion 5 is attached to the lower surface of the extending wall 40.
2c. As a result, the upper case 28 and the lower case 29
When it becomes necessary to disassemble the and, the upper case 28 and the bumper rubber 52 can be easily separated from the lower case 29.

After assembling the upper case 28 and the lower case 29, the extended wall 40 of the upper case 28 and the lower case 29 are assembled.
The lower seal portion 52c provides an air-tight seal between the space between and.

Further, the upper inner wall portion 40a of the upper case 28
Since the seal member 50 and the seal member 50 are airtightly fixed,
The upper inner wall 40a of the upper case 28 and the lower inner wall 41a of the lower case 29 are substantially sealed at one location between the seal member 50 and the lower inner wall 41a of the lower case 29. Moreover, the extended wall 40 of the upper case 28 and the bumper rubber 52
Between the upper case 28 and the lower outer wall 41b of the lower case 29, the lower seal portion 52c and the lower outer wall of the lower case 29 are substantially sealed. It is only one place between the upper surface of the portion 41b and the upper wall portion 40c of the upper case 28 and the lid 27 is substantially sealed by the upper seal portion 52a, the edge portion 27b of the side edge of the lid 27, and the flange 27c. There are two places between and. Therefore, the number of sealing points between the upper case 28 and the lower case 29 is very small.

On the other hand, by removing the connecting pipe 21a of the dust collecting hose 21 from the pipe connecting port 27a, closing the pipe connecting port 27a with the slide type shutter 48, and operating the electric fan 25, the dust collecting chamber is operated. The air in 33 is cleaned through the filter 30 and drawn into the electric fan 25. The air drawn into the electric fan 25 absorbs heat generated in the internal coil by flowing through the motor 25b, and is discharged from the exhaust hole 25d on the peripheral surface of the motor 25b into the fan chamber 34 outside the motor 25b. (a)
It is exhausted as indicated by arrow 60. This exhausted air is
It is guided to the front side of the body case 26 through the communication port 36a, the circulation path 39, and the circulation path 42 as shown by an arrow 61, and the circulation port 4
After being made to flow into the front portion of the dust collection chamber 33 from 4, 44 as shown by an arrow 62 and flowing around the paper pack filter 46, it is again sucked into the electric fan 25 through the filter 30 and circulated. During such circulation, the paper pack filter 46 is heated from the surroundings by the air heated in the motor 25b, and harmful microorganisms such as mites in the paper pack filter 46 are killed.

[0024]

As described above, according to the first aspect of the invention, the main body case which is composed of the upper case and the lower case which are divided into the upper and lower parts is provided, and the dust collection which opens upward in the front part of the main body case. A chamber is formed, an extension wall extending along the open end of the dust collection chamber is provided in the upper case, and a bumper rubber along the extension wall is provided on a side surface of the main body case. In the electric vacuum cleaner, the bumper rubber has a shock absorbing portion attached to an outer surface of the extending wall, and an upper seal portion attached to an upper surface of the extending wall and a lower surface of the extending wall. A lower seal portion, and the upper seal portion is airtightly sealed between the extending wall of the upper case and the lid body, and the lower seal portion is provided between the extending wall of the upper case and the lower case. Since it is configured to be airtightly sealed with, The over scan can be separated easily from the lower case to the bumper rubber and integrated.

According to the second aspect of the present invention, there is provided a main body case composed of an upper case and a lower case which are divided into an upper part and a lower part, and a dust collecting chamber which opens upward is formed at the front part of the main part case. The upper case is provided with an extended wall extending along the open end of the dust collecting chamber, a fan chamber communicating with the dust collecting chamber is formed in a rear portion of the main body case, and the fan chamber is electrically driven. In an electric vacuum cleaner in which a fan is provided, an open end to the upper part of the dust collection chamber is provided so as to be openable / closable by a lid, and a bumper rubber along the extended wall is provided on a side surface of the main body case. The extended wall has an upper inner wall portion and an upper outer wall portion that are connected to each other at an upper portion, and a side wall of the lower case corresponding to the dust collecting chamber is a lower inner wall portion that is connected to each other at a lower portion. And a lower outer wall portion between the both side wall portions of the extended wall and the lower case. A circulation path is formed between the side wall portions so that the exhaust side of the electric fan and the front portion of the dust collection chamber communicate with each other to circulate the exhaust air of the electric fan into the front portion of the dust collection chamber. In addition, the bumper rubber has a shock absorbing portion attached to an outer surface of the upper outer wall portion, an upper seal portion attached to an upper surface of the extending wall, and a lower portion attached to a lower surface of the upper outer wall portion. A seal portion is provided, and an airtight seal is provided between the extended wall of the upper case and the lid body by the upper seal portion, and a gap between the lower edge of the upper outer wall portion and the upper edge of the lower outer wall portion is provided. The lower seal portion is hermetically sealed, and the inner side wall portions are airtightly sealed by the inner seal member interposed therebetween.
The number of sealing points between the lower case, the lid, etc. can be reduced despite the provision of the circulation path, and the sealing performance can be improved.

[Brief description of drawings]

FIG. 1 (a) is an explanatory view of a vacuum cleaner body of an electric vacuum cleaner according to the present invention seen from a side surface, k (b) is a perspective view of the vacuum cleaner body of (a), and (c) is (a). It is sectional drawing which follows the CC line | wire.

2 (a) is a schematic perspective view of an electric vacuum cleaner including the cleaner body shown in FIG. 1, and FIG. 2 (b) is an enlarged perspective view of the cleaner body shown with the lid body of FIG. 2 (a) removed. Is.

FIG. 3 is a plan view of the cleaner body with the paper pack filter and the mouth frame holder of FIG. 2 (b) removed.

FIG. 4 is a cross-sectional view taken along the line DD of FIG. 2 (b).

5 is a cross-sectional view taken along the line EE of FIG.

6A is a perspective view of a cleaner body showing a prior art of the present invention, FIG. 6B is a sectional view taken along line AA of FIG. 6A, and FIG. 6C is BB of FIG. It is sectional drawing which follows the line.

[Explanation of symbols]

 20 ... Vacuum cleaner main body 25 ... Electric fan 26 ... Main body case 27 ... Lid body 28 ... Upper case 29 ... Lower case 33 ... Dust collection chamber 40 ... Extending wall 40a ... Upper inner side wall 40b ... Upper outer side wall 41a ... Lower Inner wall portion 41b ... Lower outer wall portion 42 ... Circulation path 50 ... Inner seal member 52 ... Bumper rubber 52a ... Upper seal portion 52b ... Impact absorbing portion 52c ... Lower seal portion

Claims (2)

[Claims] 1. A main body case including an upper case and a lower case divided into upper and lower parts is provided, and a dust collecting chamber opening upward is formed at a front part of the main body case, and the upper case. In the electric vacuum cleaner, an extension wall extending along the open end of the dust collecting chamber is provided, and a bumper rubber along the extension wall is provided on a side surface of the main body case. The upper case has a shock absorbing portion attached to an outer side surface of the extending wall, an upper seal portion attached to an upper surface of the extending wall, and a lower seal portion attached to a lower surface of the extending wall. Between the extended wall and the lid body is hermetically sealed by the upper seal portion, and between the extended wall of the upper case and the lower case is hermetically sealed by the lower seal portion. Vacuum cleaner to do. 2. A main body case including an upper case and a lower case divided into upper and lower parts is provided, and a dust collecting chamber opening upward is formed at a front portion of the main case, and the upper case is provided with An extension wall extending along the open end of the dust collection chamber is provided, a fan chamber communicating with the dust collection chamber is formed in a rear portion of the main body case, and an electric fan is arranged in the fan chamber. In an electric vacuum cleaner in which an open end to the upper part of the dust collecting chamber is provided by a lid so as to be opened and closed, and a bumper rubber along the extending wall is provided on a side surface of the main body case, the extending wall is an upper part. Has an upper inner wall portion and an upper outer wall portion that are connected to each other, and a side wall of the lower case that corresponds to the dust collection chamber has a lower inner wall portion and a lower outer wall portion that are connected to each other at a lower portion. Between the side walls of the extended wall and the side walls of the lower case. A circulation path is formed to connect the exhaust side of the electric fan and the front part of the dust collecting chamber to circulate the exhaust gas of the electric fan in the front part of the dust collecting chamber, and the bumper rubber is the upper outer side. The upper case has an impact absorbing portion attached to the outer surface of the wall portion, an upper seal portion attached to the upper surface of the extending wall, and a lower seal portion attached to the lower surface of the upper outer wall portion, Between the extended wall and the lid is hermetically sealed by the upper seal portion, and the lower seal portion is hermetically sealed between the lower edge of the upper outer wall portion and the upper edge of the lower outer wall portion. The electric vacuum cleaner is characterized in that the inner side wall portions are airtightly sealed by an inner seal member interposed therebetween.