JPH0355423Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Use The present invention relates to a vacuum cleaner in which an intake port for inserting a hose is formed in a lid that closes an upper opening of a dust collection chamber.

BACKGROUND ART The structure of a conventional vacuum cleaner of this type will be described with reference to the drawings.

5 to 7, reference numeral 1 denotes a vacuum cleaner main body with a built-in fan motor 2, a cord reel 3, etc., and in front of the fan motor 2 is a dust collector for inserting a dust collection bag 4 equivalent to a paper bag. It has a dust chamber 5. Above the dust collection chamber 5 is a lid 6 that slopes forward and downward.
is provided, and an intake port 9 into which a rotary elbow 8 fixed to the hose 7 is inserted is formed in front of it.

This intake port 9 has a disk 10 provided so that the rotary elbow 8 can freely rotate.
This disk 10 is supported by a lid 6 on the top and an inner lid 11 on the sides. Also, this disk 10 is connected to the rotating body 1 by a disk screw 12.
3, thereby causing the disk 10 and the rotating body 13 to rotate at the same time. Note that the rotating body 13 is supported by an inner lid 14 on its lower surface.

Here, the inner lid 11 and the inner lid 14 are the lid 6.
First, the inner lid 11 is passed through the lid boss 15 that projects vertically downward from the inner surface of the container, and then the inner lid 14 is fitted.
It is tightened with inner lid screws 16. Further, the disk 10 is provided with a check valve 17,
To prevent dust from sticking out from a dust collection bag 4 when a rotating elbow 8 is removed. Further, 18 is a tight packing fixed to the rotating body 13. A bag rubber 20 is provided on the inner lid 14 for the purpose of air tightness with the opening plate 19 of the dust collection bag 4.

Further, 21 is an intake port cover for opening and closing the intake port 9 when the rotating elbow 8 is removed, and has a knob 22 in front of the intake port cover. The upper surface of the intake port cover 21 is held down by a cover retainer 23 formed integrally with the lid 6, and the lower portion slides on the upper surface of the inner lid 11 and the disk 10 to open and close the intake port 9.

Problems to be Solved by the Invention In such a conventional vacuum cleaner, as shown in FIG. 7, the lid boss 15 is oriented vertically, whereas the lid 6 is tilted downward toward the front. Therefore, an angle a occurs between them. In manufacturing the mold for the lid 6, it is easiest to manufacture the lid boss 15 when it is perpendicular to the surface of the lid 6, and dimensional accuracy is also easily achieved. However, in the past, the angle a was unavoidably generated, which caused a problem in the dimensional accuracy of the lid boss 15. The disk 10, rotating body 13, etc. around this intake port 9 must not only rotate smoothly at all times during use, but are also subject to considerable force, such as when the user strongly pulls on the hose 7. Therefore, the disk 10, the rotating body 13, the inner cover 11, and the inner cover 14 are each manufactured with high dimensional accuracy and are fitted together. However, as mentioned above, because the accuracy of the inner cover 11 that supports the disk 10 and the rotating body 13, and the cover boss 15 that fixes the inner cover 14 is poor, the rotary elbow 8 is likely to play loosely, causing the rotary elbow 8 to become untidy. There was a problem that the hose 7 became difficult to rotate. On the other hand, there were also problems with durability, as there was almost no play, making it difficult to rotate unless strong force was applied, and it quickly stopped moving due to dirt and dust getting in.

Furthermore, in the conventional structure, the inner lid 11 was required as a separate component in order to support the disk 10 and the rotating body 13 in the horizontal direction, which increased the cost accordingly.

Furthermore, the intake port cover 21 slides horizontally over the disk 10 and the inner lid 11, but when the intake port cover 21 is closed, a gap of dimension b shown in FIG. 7 is created between the intake port cover 21 and the lid 6. Put it away. There is a very high possibility that dirt, dust, etc. will enter through this gap, and as mentioned above, this disk 10,
Since the rotating portion of the rotating body 13 has strict dimensional accuracy, there is also the problem that normal rotation cannot be easily achieved due to the intrusion of dust.

The present invention is intended to solve these problems, and aims to provide a vacuum cleaner that improves the rotatability and durability of the disk and rotating body 13, that is, the rotatability and durability of the hose.

Means for Solving the Problems In order to solve the above problems, the present invention provides a vacuum cleaner body with a fan motor and a dust collection chamber provided on the suction side for storing a dust collection bag, and an upper opening of the dust collection chamber. A lid that opens and closes the section, and has an air intake port on the front downward slope, a ring-shaped rotating body that is rotatably provided in the air intake port, and a hose that is connected to one end of the hose to draw air through the rotating body. and a rotating elbow that is rotatably connected to the opening, and the rotating body has a support rib integrally projecting from the inner surface of the lid, and the outer periphery of the rotating body is
One end surface of the inner lid is supported by an inner lid screwed to a lid boss provided inside the lid and integrally projecting from the lid, and furthermore, these support ribs and the lid boss are attached to the sloped surface of the lid. It is formed in a direction perpendicular to the surface.

Effects With the above-described configuration of the present invention, the bosses and ribs on the inner surface of the lid have high dimensional accuracy, so that the fitting with the rotating body and the inner cover that supports the rotating body increases accuracy. Therefore, the rotatability of the hose is increased and its durability is also improved. This also makes it possible to reduce costs by reducing parts.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 to 4, 31 is a vacuum cleaner body with a built-in fan motor 32, etc., and in front of the fan motor 32 is a dust collection bag 3 such as a paper bag.
It has a dust collection chamber 34 in which the dust collector 3 is installed. The lid 35 that opens and closes the upper opening of the dust collection chamber 34 is rotatably attached to the main body cover 36 via a boss 37 at the rear, and is detachable from the vacuum cleaner main body 31 at the front. A buckle 38 is provided for locking.

Support plates 39 and 41 support the opening plate 40 of the dust collection bag 33.

The front of the lid 35 has an intake port 44 into which a rotary elbow 43 to which a hose 42 is fixed is inserted. This intake port 44 is provided on a surface inclined with respect to a horizontal surface. Inside this intake port 44, there is a ring-shaped rotating body 45 provided so that the rotating elbow 43 can freely rotate. The ring-shaped rotating body 45 is supported on its lower surface by an inner lid 46 and on its side surfaces by rotating body supporting ribs 47 integrally formed with the lid 35. The rotating elbow 43 passes through the intake port 44 and is fixed to a rotating body 45 so as to rotate 360°. In addition, the inner lid 46
is integrally formed with the lid 35, and is also attached to the lid 35.
It is fixed to a lid boss 48 provided in a direction perpendicular to the inclined surface of No. 5 with a lid screw 49. Further, a rotating body support rib 47 that supports the rotating body 45 is similarly provided in a direction perpendicular to the inclined surface of the lid 35.

Further, 50 is an intake port cover for closing the intake port 44 after removing the rotary elbow 43, and a knob 51 is provided in front of the intake port cover. This intake port cover 50 is made of an elastic resin material such as polypropylene, and has irregularities on its upper and lower surfaces. When the intake port cover 50 is opened, the cover receiving rib 5 provided on the inner lid 46
When the user grasps the knob 51 and slides it, the intake port 44 can be closed by sliding the upper surface of the rotating body 45.

In the above configuration, as is clear from the single cross-sectional view of the lid 35 shown in FIG.
The lid boss 48 is provided perpendicularly to the inclined surface of the lid 35. That is, the mold for the lid 35 is
Both the cavity and the core move in the vertical direction using the inclined surface as parting. In manufacturing a mold, it is easiest to manufacture a mold when ribs and bosses are formed perpendicularly to the parting of the cavity and core, and a mold with high dimensional accuracy can be obtained. Therefore, the precision of the rotating body support rib 47, lid boss 48, etc. provided on the lid 35 is high, and the hose 42 always rotates smoothly when in use, and has performance such as no rattling even when strong force is applied. The rotating portion of the rotating body 45 that requires the following is fitted more accurately into the inner cover 46. That is, the rotating body 35 that fixes the rotating elbow 43 always rotates accurately, and the usability of the hose 42 is greatly improved. Additionally, there is less dirt, dust, etc. entering the rotating parts, and durability is improved without impairing smooth rotation.

In addition, by making the direction of mold removal of the lid 35 perpendicular to the inclined surface, the rotating body support rib 47
can be formed integrally with the lid 35. Therefore, a separate part for supporting the sides of the rotating body 45 is not required, and it is possible to provide a low-cost product to the market.

Furthermore, since the rotating body 45 can be arranged along the slope of the lid 35, the inlet cover 50 and the lid 3
5 can be made close to 0, making it possible to prevent dirt and dust from entering from this part.
Therefore, it is possible to prevent an adverse effect on the rotation of the rotating body 45 due to the intrusion of dust, and to improve the usability and durability of the hose 42.

As described above, according to the embodiment of the present invention, good rotational performance of the rotating body 45 can be obtained, and durability can be improved. In other words, the hose 32 used by the user
This has the effect of increasing usability and durability.

Effects of the invention As described above, according to the invention, by providing bosses, ribs, etc. in a direction perpendicular to the sloped surface of the lid body, it is possible to increase the rotatability of the hose and improve its durability. It is something to do. Also,
It also has the effect of reducing costs by reducing parts.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of essential parts of a vacuum cleaner according to an embodiment of the present invention, Fig. 2 is an external perspective view, Fig. 3 is a cutaway sectional view of the essential parts, and Fig. 4 is a sectional view of the lid. FIG. 5 is a cutaway sectional view of a main part of a conventional vacuum cleaner, FIG. 6 is an external view of the same, and FIG. 7 is an enlarged sectional view of the main part. 31... Vacuum cleaner body, 32... Fan motor, 35... Lid, 42... Hose, 44... Intake port, 47... Rib, 48... Boss.

Claims (1)

[Scope of utility model registration request] A vacuum cleaner body including a fan motor and a dust collection chamber for storing a dust collection bag on the suction side thereof, a lid that opens and closes an upper opening of the dust collection chamber, and has an air intake port on a front downward slope. The rotating body includes a ring-shaped rotating body rotatably provided in the intake port, and a rotating elbow connected to one end of a hose and rotatably connected to the intake port via the rotating body, and the rotating body includes: The outer periphery is supported by a support rib integrally provided from the inner surface of the lid, and one end surface thereof is supported by an inner lid screwed to a lid boss also provided inside the lid and integrally projected from the lid, and further These support ribs and the lid boss are formed in a direction perpendicular to the inclined surface of the lid.