JPH08215113A - Vacuum cleaner - Google Patents

Abstract

PURPOSE: To provide a vacuum cleaner that is lightweight, excellent in handling, inexpensive and strong in its suction force by projecting the upper outer peripheral wall of the lower case into the space between the outer circumference of the cover body and the air-tightness holding rib when the cover body is closed, and also by positioning the upper end of the upper outer peripheral wall of the lower case in a higher place than the lower end of the air-tightness holding rib. CONSTITUTION: An air-tightness holding rib 607a is projected into the inside of a cover body 605 nearly in parallel with the outer circumference 201 of the cover body, and a dust-collecting chamber packing 606 is fitted to the upper part of a lower case 601. When the cover body is opened, the upper outer peripheral wall 202 of the lower case is projected into the space between the outer circumference 201 of the cover body and the air-tightness holding rib 607a, and also the upper end of the upper outer peripheral wall 202 of the lower case is positioned in a higher place than the lower end of the air-tightness holding rib 607a. When the vacuum cleaner starts to operate, the cover body 605 and the lower case 601 deform toward the inside of the dust-collecting chamber; however, since the upper end of the upper outer peripheral wall 202 of the lower case abuts on the air-tightness holding rib 607a and integrally deforms together with the dust-collecting chamber packing 606, the air-tightness of the dust-collecting chamber can be maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner having an improved cleaner body structure.

[0002]

2. Description of the Related Art A conventional case has a case case, a lid body that covers the top of the case case and forms a dust collection chamber, and a dust collection chamber packing that is attached to the top of the case case in order to keep the case body and the lid body airtight. In a vacuum cleaner, for example,
As shown in FIG. 5, the dust collecting chamber packing was attached so as to cover the outer peripheral portion of the upper end of the case.

[0003]

When the operation of the electric vacuum cleaner is started, the internal pressure of the dust collecting chamber is lowered, and the lid and the case are deformed due to the pressure difference. For this reason, conventionally, as shown in FIG. 5, a reinforcing rib 501 is provided inside the lid and the case 601 to provide strength. Further, a projection 503 is provided on the dust collecting chamber packing 502 mounted so as to cover the outer peripheral portion of the upper end of the case, and the outer peripheral portion of the lid is brought into contact with the convex 503 to prevent the lid and the case from being deformed inward. It was

However, when a strong suction force is to be obtained, the dust collecting chamber packing formed of an elastic material cannot suppress the deformation of the lid and the case, and as shown in FIG. There is a problem that the outer peripheral portion of the lid comes off and air leakage easily occurs.

Further, there has been a problem that the displacement of the parts due to the deformation occurs and the appearance quality deteriorates. In order to suppress the deformation of the lid and the case, it is conceivable to provide reinforcing ribs or increase the thickness of the parts as described above.
In both cases, the weight of the main body increases, the manufacturing cost increases,
There was a problem that handleability was also reduced. An object of the present invention is to solve the above problems, to provide a vacuum cleaner that is lightweight, has excellent handleability, and can obtain a strong suction force at low cost.

[0006]

[Means for Solving the Problems] The above-mentioned problem is solved by the present invention: a case, a lid that covers the upper part of the case and forms a dust collection chamber, and an airtight holding member that is provided inside the lid and is substantially parallel to the outer periphery of the lid. A rib, and a dust collection chamber packing that is pressed against the airtight holding rib when the lid is closed and is attached to the upper part of the case to maintain the airtightness of the case and the lid.
When the lid is closed, the outer peripheral wall of the upper case case projects into the space between the outer periphery of the lid and the airtight retaining rib, and the upper end of the outer peripheral wall of the upper case is located above the lower end of the airtight retaining rib. It can be solved by configuring as follows.

[0007]

According to the above-mentioned means, the deformation of the lid body and the case which has been suppressed by bringing the outer peripheral portion of the lid into contact with the dust collecting chamber packing formed of an elastic material in the related art can be performed. The direct contact improves the conformability of the other component to the deformation of one component.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 7 is a perspective view showing the appearance of the vacuum cleaner according to the embodiment of the present invention.

In the figure, 701 is a cleaner body having a control circuit, an electric blower and the like built therein, 702 is a hose connected to the suction port of the cleaner body 701, 703 is a bend joint, and 704 is a bend joint 703. An extension pipe 705 is connected to the tip, and a suction port 705 is connected to the extension pipe 704.

FIG. 6 shows a vertical sectional view of an electric vacuum cleaner according to an embodiment of the present invention.

The cleaner body 701 includes a lid case 601 that covers a lower portion, a suction port 602 provided on the front surface of the lid case 601 and a lid 605 that covers a top portion of the lid case 601 and forms a dust collecting chamber 604 that houses a dust collecting bag 603. Have Dust collection chamber 6
The dust collecting chamber packing 606 is disposed on the upper wall surface of the case case 601 which forms the lower part of 04, and when the lid 605 is closed, the lid 60 forming the upper part of the dust collecting chamber 604.
The airtightness holding rib 607 protruding from No. 5 is pressed to keep the airtightness of the dust collecting chamber 604. The dust collecting bag 603 in the dust collecting chamber 604 is a paper 603a.
Is engaged with the claw of the clamp 608, so that the suction port 60
2 is held in pressure contact with a suction port packing 609 sandwiched between the case 2 and the case case 601.

Further, the cleaner body 701 has an electric blower chamber 611 formed at its rear portion by a shelter case 601 and a case 610. The electric blower chamber 611 communicates with the dust collecting chamber 604, and holds and holds the electric blower 612 so that the intake side of the electric blower 612 faces the dust collecting chamber 604 through the filter 613. The exhaust side of the electric blower 612 communicates with the outside via an exhaust filter 618 and an exhaust port 619.

A handle 614 rotatably supported by a shaft is provided on the top of the case 610.
Further, the bypass valve 615, the power switch 616, and the switch spring 622 are provided, and the case 610 is provided.
It is covered with a top cover 617 axially supported so as to be rotatable.

Next, the operation of each part when the cleaner body 701 is in operation will be described.

When the electric blower 612 operates and a suction force is generated on the intake side, the hose 70 connected to the suction port 602.
2, through the bending joint 703 and the extension pipe 704, the suction port 7
From 05, an air flow containing dust is guided to the dust collection chamber 604. The air flow containing dust is filtered through the dust bag 603 made of a filter material such as paper, and the dust is collected in the dust bag 603.

On the other hand, the filtered air is supplied to the electric blower chamber 61.
1, while cooling the electric blower 612, it is exhausted to the outside of the main body through the exhaust filter 618 and the exhaust port 619.

Here, if dust collects in the dust bag 603 and the eyes of the filter material forming the dust bag 603 become clogged, the air flow flowing to the electric blower 612 decreases and the electric blower 612 is sufficiently cooled. Will disappear. Therefore, when dust collects in the dust bag 603 and the filter medium becomes clogged to increase the degree of vacuum on the intake side of the electric blower 612, the bypass valve 615 that operates due to the pressure difference between the inside and outside of the main body is provided, and the bypass valve 615 is provided. From the bypass passage 620 to the electric blower chamber 611 to ensure cooling. Further, the user confirms the operating state of the bypass valve 615 from the confirmation window 621,
It is possible to know when to replace the dust collecting bag 603.

Next, the structure of the electric vacuum cleaner according to the present invention will be described with reference to FIGS. 1, 2, and 3.

FIG. 1 is a partially sectional front view of the main body case. FIG. 2 is an enlarged cross-sectional view of the airtight holding unit.

A shutter case 601, a lid 605 which covers the upper portion of the shutter case and forms a dust collecting chamber 604, an airtight holding rib 607a which is provided inside the lid substantially parallel to the outer circumference 201 of the lid, and a lid. A dust collecting chamber packing 606 is attached to the upper part of the case case 601 in order to keep the case case 601 and the lid 605 airtight when pressed against the airtightness holding rib 607a when closed. When the lid is closed, the upper outer peripheral wall 202 of the case case projects into the space between the outer periphery 201 of the lid and the airtight holding rib 607a, and the upper end of the upper outer wall 202 of the lower case is higher than the lower end of the airtight holding rib 607a. It is located above.

Now, when the operation of the electric vacuum cleaner is started,
The internal pressure of the dust collection chamber 604 decreases, and the lid 605 and the case 601 deform toward the inside of the dust collection chamber. Especially, the case 601 is made of polypropylene and the lid 605 is made of ABS.
When molded with resin, the amount of deformation of the case case 601 tends to be larger than that of the lid 605.

According to this embodiment, since the upper end of the upper case outer peripheral wall 202 is located higher than the lower end of the airtight holding rib 607a, the upper case outer peripheral wall of the lower case case 607a is not affected even if the difference in deformation is large. The upper end of 202 contacts the airtight holding rib 607a and is deformed together with the dust collecting chamber packing 606, so that the airtightness of the dust collecting chamber 604 is maintained without causing air leakage. Also,
If the airtight holding ribs 607a and the upper case outer peripheral wall 202 are brought into contact with each other when the lid is closed and no pressure is applied, rattling of the lid 605 is restricted and appearance quality and usability are improved. .

Conventionally, the dust collecting chamber packing 606 is made of vinyl chloride, and as shown in FIG. 5, it is arranged up to the outer periphery of the cleaner body to maintain airtightness. According to this, since the vinyl chloride usage fee can be reduced, the recyclability of the cleaner body can be improved.

In this embodiment, an example in which the reinforcing rib 501 is used together is shown, but it is of course possible to apply without the reinforcing rib 501. In this case, the case 6
01, that is, the dust collection chamber 604 does not have a protrusion, the damage to the dust collecting bag 603 due to the protrusion can be prevented, and
There is an effect that the dust leaking from the dust collecting bag 603 and accumulated in the dust collecting chamber 604 can be easily cleaned, and the cleaner can be more convenient to use.

Further, as shown in FIG.
It is also possible to provide a contact rib 301 inside the. Lid 6
When the rigidity of 05 is lower than that of the case 601 the lid 6
The deformation amount of 05 is larger than the deformation amount of the case case 601, but the abutment rib 3 of the lid body 605 pulled inward.
01 comes into contact with the outer peripheral wall 202 of the upper part of the case and is deformed together with the dust collecting chamber packing 606, so that the airtightness of the dust collecting chamber 604 is maintained without causing air leakage. In this case, the lid outer circumference 201 and the airtight holding rib 607a
If the space between the contact ribs 3 is narrowed,
Even without 01, the outer peripheral wall 202 of the upper part of the case and the outer periphery 2 of the lid body
01 is brought into contact to obtain the same effect as described above. Similarly, the contact ribs 302 may be provided outside the airtightness maintaining ribs 607a so as to contact the airtightness maintaining ribs 607a and the upper outer peripheral wall 202 of the case. Further, as shown in FIG. 4, these structures can be made lighter in weight and higher in suction performance by being partially disposed in the side surface central portion 401 where the deformation amount is particularly large.

[0027]

As described above, according to the present invention, even if the lid and the case are deformed due to the pressure difference between the inside and the outside when the cleaner is operated, the dust collecting chamber can be easily airtight.
High suction performance can be obtained.

Also, rattling at the time of closing the lid is prevented,
Even during operation, the lid and the case are integrally deformed, so that the displacement between the components due to the deformation is eliminated and the appearance quality is improved.

Further, since there is a margin for deformation of the airtight surface, it is not necessary to make the wall thick or to provide a large number of ribs in order to increase the rigidity of the parts, and thus the vacuum cleaner which is lightweight and easy to handle is low. Can be provided at cost.

Further, the reinforcing ribs inside the lid and the case can be removed, and the dust bag can be prevented from being torn.

Further, conventionally, the airtight packing is made of vinyl chloride, but the amount used can be reduced and the recyclability can be improved.

[Brief description of drawings]

FIG. 1 is a partial front sectional view of a main body case of an electric vacuum cleaner according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the airtight holding portion of the vacuum cleaner according to the exemplary embodiment of the present invention.

FIG. 3 is a cross-sectional view of an airtight holding portion of an electric vacuum cleaner according to another embodiment of the present invention.

FIG. 4 is an external perspective view of an airtight holding portion of an electric vacuum cleaner according to another embodiment of the present invention.

FIG. 5 is a cross-sectional view of an airtight holding portion of a conventional vacuum cleaner.

FIG. 6 is a vertical cross-sectional view of the electric vacuum cleaner according to the embodiment of the present invention.

FIG. 7 is an external perspective view of the electric vacuum cleaner according to the embodiment of the present invention.

FIG. 8 is a cross-sectional view of an airtight holding portion of a conventional vacuum cleaner.

[Explanation of symbols]

201 ... Perimeter of lid, 202 ... Outer peripheral wall of upper case 3
01, 302 ... Abutment rib, 401 ... Side surface central portion, 501
... Reinforcing ribs, 502, 606 ... Dust collection chamber packing, 503
... convex part, 601 ... sita case, 602 ... suction port, 603
... Dust collection bag, 603a ... Paper, 604 ... Dust collection chamber, 605 ... Lid, 607, 607a ... Airtight holding rib, 608 ... Clamp, 609 ... Suction port packing, 610 ... Case, 6
11 ... Electric blower room, 612 ... Electric blower, 613 ... Filter, 614 ... Handle, 615 ... Bypass valve, 616 ... Power switch, 617 ... Wafer cover, 61
8 ... Exhaust filter, 619 ... Exhaust port, 620 ... Bypass passage, 621 ... Confirmation window, 622 ... Switch spring, 701
... Vacuum cleaner body, 702 ... Hose, 703 ... Bending joint,
704 ... Extension pipe, 705 ... Suction mouth.

Claims (1)

[Claims] 1. A cleaner main body having an electric blower and a dust collector, a hose connected to the cleaner main body, an extension pipe connected to the hose, and a suction port connected to the extension pipe. An electric vacuum cleaner having, wherein the cleaner body includes a case that forms an outer shell thereof,
A lid body that covers the upper portion of the dust collecting portion formed in the shutter case, an airtight holding rib that is provided inside the lid body and projects substantially parallel to the outer circumference of the lid body, and the lid body when the lid body is closed. It has a dust collecting chamber packing that is pressed against the airtight holding rib and is attached to the upper part of the case to maintain airtightness between the case and the lid, and at least the outer peripheral wall of the upper part of the case is closed when the lid is closed. A part thereof protrudes into a space between the lid outer circumference and the airtightness holding rib, and at least a part of an upper outer peripheral wall of the shutter case is located above a lower end of the airtightness holding rib. Vacuum cleaner to do.