JPS59141921A - Electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an improvement of a vacuum cleaner having a dust removal attachment.

[Background of the invention]

The main body case, the dust case, and the electric blower and cord reel installed inside the main body case.The dust case has a filter on the side facing the electric blower and the cord reel, and the suction port of the electric blower is on the side of the dust case. The dust case is provided with a vibrating protrusion that applies dust removal vibration to the filter of the dust case, and a striking rod is provided that hits the vibrating protrusion with the rotation of the cord reel.
There is a problem that the vibration protrusion becomes a resistance to the airflow flowing to the electric blower.

The present invention addresses the above-mentioned drawbacks and aims to provide an electric blower with less resistance to the airflow.

[Summary of the invention]

In the present invention, the electric blower and the cord reel are arranged side by side facing the dust case, and the dust case is provided with a filter on the surface facing the electric blower and the cord reel.
The suction port of the electric blower is provided so as to face the dust case side, the suction port of the electric blower is provided on the filter of the dust case, and the vibration protrusion is provided on the dust case as the cord reel rotates, and the striking rod hits the vibration protrusion as the cord reel rotates. The vibrating protrusion is located closer to the cord reel than on a line connecting the dust inlet through which dust is poured into the dust case and the suction port of the electric blower.

〔Effect of the invention〕

According to the above configuration, the following actions and effects can be expected.

(1) The vibration protrusion is located on the line connecting the dust inlet that pours dust into the dust case and the suction port of the electric motor, so the airflow flowing toward the suction port of the electric blower is directed to the vibration protrusion. Don't be disturbed (4). The vibration protrusions reduce airflow resistance, improving suction performance. Additionally, since there is no airflow resistance, there is less swirling noise from the airflow, which can reduce operating noise accordingly.

(2) Since the electric blower and cord reel are arranged side by side facing the dust case, the length of the main case can be kept low, making it highly stable and easy to handle. be.

[Embodiments of the invention]

An embodiment of the present invention will be described below based on the drawings.

The main body case 1 of the vacuum cleaner is constructed by combining an upper case 2 and a lower case 3, as shown in FIGS. 1 and 2.

The front side of the main body case 1 is a dust case storage section 4. As shown in FIG. 7, an electric blower 6 and a cord reel 7 are placed side by side in the rear section 5. As shown in FIG. Since they are placed side by side, the length of the main body case 1 can be kept low.

An outer lid 8 that closes the dust case storage section 4 is attached to the main body case l so as to be openable and closable.

The dust case 9 is detachably attached to the dust case storage section 4, and a flexible bag-shaped filter 10 is provided inside the dust case 9.

As shown in FIG. 5, the dust case 9 has a structure in which a holding basket 11 is covered with a non-woven filter 12. The method of manufacturing this will be briefly described with reference to FIG.

The material of the filter 12 is cut as shown in FIG. 6(C), and formed into a box shape as shown in FIG. This box-shaped filter 12 is set in a mold of a molding machine, and a synthetic resin is injected to mold the shape-retaining cap 11.

At the time of molding, the filter 12 and the shape-retaining cap 14 are combined into one body. In this way, the dust case 9 is made.

The shape-retaining leg 14 is formed by a large number of supporting bones 1s, 16.17. The support bones 16 at the corners are wide. This is to increase strength. Structural bone 17 is not a corner, but it is
5-Yoshi also has a wider width.

This is to provide a vibrating protrusion 18 as shown in FIG. The vibration protrusion 18 is formed to protrude outside the dust case 9. Vibrating protrusion 18, supporting bones 15, 16
．． There is no ventilation at 17. The vibration protrusion 18 is offset by one dimension from the center of the rear side of the dust case 9, as shown in FIG. Therefore, as shown in FIG. 7, the vibrating protrusion 18 is separated from the electric blower 6 and
They will be located facing each other on the sides. The reason for this arrangement will be described later.

The dust case 9 is provided with filters 12 on five sides except for the upper opening, and a filter support plate 19 that can be opened and closed is attached to the opening. This filter support plate 1
9 closes approximately half of the opening and is rotatably supported. The filter support plate 19 is a bag-shaped filter 1
0 is supported.

The bag-shaped filter 10 includes a bag-shaped part made of breathable and flexible paper and a support plate 2 made of thick hard paper.
It is composed of 0.

The bag-shaped filter 10 is attached to the dust case 9 by inserting the bag-like part into the dust case 9 and placing the support plate 20 on the mouth edge of the dust case 9 and the filter support plate 19. FIG. 3 shows this state.

FIG. 2b shows a state in which the dust case 9 containing the bag-shaped filter 10 is set in the dust case storage section 4 of the main case 1.

The outer lid 8 has a hose insertion port 21 into which a hose (not shown) is inserted. This hose insertion port 21 is a dust inflow port, and its discharge port is placed so as to be inserted into a suction port 22 formed in the support plate 20 of the bag-shaped filter 10.

A dust removal device is provided on the back inner surface of the dust case 4. The board 23 of the dust removal device also serves as a partition plate. FIG. 5 is a view of the substrate 23 from the back side, in which a large number of vent holes 24 are formed. The transmission gear 25 is supported on the right side. A cam stand 26 is attached to this transmission gear 25. The cam stand 26 is located on the front side of the board 23 as shown in FIG. A striking rod 27, which is a dust remover, is locked to the rear left edge portion of the board 23. The free end of the striking rod 27 extends as far as the cam rest 26 .

As shown in FIG. 6, the cam stand 26 is provided with a cam 28. This cam 2B is rotatably supported by a support shaft 29 of a cam stand 26. A stopper 30 is provided beside the support shaft 29. A cam spring 31 wound around the support shaft 29 engages the cam 28 at one end and the stopper 30 at the other end.

Cord reel lj: As shown in FIG. 5, a power cord 32 is wound around the cord reel lj. A gear 33 formed on the outer periphery of the cord reel 7 meshes with the transmission gear 25.

The above is an explanation of one embodiment of the present invention, mainly from the perspective of the configuration. Next, the operation will be explained.

When the dust case 9 is not set in the dust case storage section 4, the striking rod 27 is separated from the outer periphery of the cam base 26, as shown in FIG. 6(a)K. Even if the cam base 26 rotates (9) times when the cord reel 7 is rotated, the cam base 26 simply rotates idly because the striking rod 27 is separated from the cam 826.

When the dust case 9 is set in the dust case storage section 4, the striking rod 27 is pushed down by the vibrating protrusion 18 of the dust case, as shown in FIG. 6(B). The tip of the striking rod 27 is located inside the outer periphery of the cam base 26. When the cam stand 26 rotates as the cord reel 7 rotates as shown in FIG. 9(c), the striking rod 28 is pulled downward by the cam 28. Then, when the cam 28 comes off the tip of the striking rod 27, the striking rod 27 rapidly returns due to its own elasticity and strongly strikes the lower surface of the vibrating projection 18. This shock causes the dust case 9 to vibrate.

The filter 12 near the vibrating protrusion 18 vibrates particularly strongly.

When the cord reel 7 is rotated in the opposite direction to the previous rotation, the cam base 26 rotates in the direction shown in FIG. In rotation in this direction, when the tip of the striking rod 27 touches the cam 28, the cam 28 rotates in the direction of escape against the cam spring 31, so the striking rod (10) 27 is not pushed up. The cam stand 26 will idle.

When the cord reel 7 is turned in the direction to pull out the power cord 32, the cam stand 26 moves to (c) in FIG. 9, and when the cord reel 7 is turned in the direction to wind up the power cord 32, the cam stand 26 moves to (b) in FIG. It rotates in each direction. The reason why the cam base 26 idles during rotation in the direction of 1) is to reduce the spring load on the cord reel 7 that winds up the power cord 32.

When the electric blower 6 is operated, air containing dust flows into the bag-shaped filter 10 through the dust inlet which is the hose insertion port 21. Same filter 1 for coarse dust and fine dust
Collected at 0. The air that has passed through the filter 10 passes through the filter 12 of the dust case 9, is sucked into the electric blower 6, and is exhausted to the outside of the main case 1 through there.

Most of the dust is collected by the bag-shaped filter 10, but the dust not collected here is collected by the filter 12 in the latter stage.
Since the dust is collected by the exhaust gas, the amount of dust (11) contained in the exhaust gas is extremely small, making it sanitary.

As the amount of dust collected in the bag-shaped filter 10 increases, the filter 10 becomes more clogged and the air permeability decreases. By rotating the cord reel 7, the striking rod 2 is
7 hits the vibrating protrusion 28 to vibrate the dust case 9. Due to this vibration, the bag-shaped filter 10 also vibrates, and the dust adhering to the inner wall surface of the filter 10 is removed, and the clogging of the filter 10 is eliminated. Since the dust adhering to the filter 12 of the dust case 9 is removed, clogging of the filter 12 is also eliminated.

By repeatedly removing dust from the bag-like filter 10 and the filter 12 of the dust case 9, the bag-like filter 1
0 can suck in a lot of dust.

By opening the outer lid 8 and pulling up the bag-shaped filter 10, the filter 10 is taken out from the dust case 9. Since it is a pull-up type, the filter 10 is easy to pull out.

If the bag-shaped filter 10 breaks (12) when it is pulled up, remove the dust case 9 from the dust case storage section 4.
Remove the dust case 9 from the container and place it in a garbage disposal area. The dust case 9 can be turned upside down and the filter 10 can be thrown away.

When there is no replacement bag-like filter 12, dust can be collected directly in the dust case 9.

Since the opening of the dust case 9 faces upward, no dust will spill out when the dust case 9 is removed.

Further, the dust case 9 has filters 12 on five sides excluding the upper opening, so the ventilation area is large.

Air flowing into the bag-shaped filter 10 from the dust inlet, which is the hose insertion port 21, flows as shown in FIG. 7 and is sucked into the electric blower 6.

Most of the air flow collects on the line connecting the dust inlet and the suction port of the electric blower 6, or near the same line.

The vibration protrusion 18 of the dust case 9 moves the center of the surface of the dust case 9 facing the electric blower 6 and the cord reel 7 by a dimension υ toward the cord reel 7. Since the vibrating protrusion 18 is far away from the point (13) where the airflow is concentrated, it does not act as a resistance to the airflow. This results in improved suction performance. Since the airflow is not obstructed, there is less turbulence in the airflow, and the operating noise is reduced accordingly.

Since the support bone at the vibrating protrusion 18 has a wide width, it is necessary to keep it away from areas where airflow is concentrated. i The electric blower 6 and the cord reel 7 are placed side by side facing the dust case 9. Since the length of the main body case 1 can be kept low, stability and running performance are good.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view of the vacuum cleaner main body, and FIG. 2 is a side view of the vacuum cleaner main body, with the front side cut away. It is. Figure 3 is a perspective view of the vacuum cleaner with the outer lid open and the dust case lined up, Figure 4 is a schematic diagram of manufacturing the dust case, and Figure 5 is a perspective view of the dust case, dust remover, and cord reel lined up. It is. FIG. 6 is a diagram showing the operational relationship of the cam base, (14) striking rod, and vibration protrusion, and FIG. 7 is a diagram showing the airflow from the dust inlet toward the electric blower. 1... Main body case, 9... Dust case, 6...
Electric feeder, 7... Cord reel, 12... Filter, 18... Vibrating projection, 27... Strike rod, 21...
・・Dust inflow 14 prisoners

Claims (1)

[Claims] 1. A main body case, a dust case, an electric blower and a cord reel placed inside the main body case, and the electric blower and the cord reel are arranged side by side toward the dust case. The dust case is equipped with a filter on the side facing the electric blower and the cord reel, and the suction port of the electric blower is arranged to face the dust case side, and a vibrating protrusion that imparts dust removal vibration to the filter of the dust case is installed on the dust case. A striking rod is provided which hits the vibrating protrusion as the cord reel rotates, and the vibrating protrusion is located on the cord reel side on the line connecting the dust inlet that pours dust into the dust case and the suction port of the electric blower. A vacuum cleaner featuring the following features. 2. A vacuum cleaner according to claim 1, characterized in that the main body case is provided with a dust case storage section, and the dust case storage section is provided with a detachable dust case. 3. In the product described in claim 1, the main body case is provided with a dust case storage section, the dust case storage section is provided with a detachable dust case, and the dust case is box-shaped and has an opening at the top, This vacuum cleaner is characterized by having filters on the remaining five sides. 4. In the product described in claim 1, the main case is provided with a dust case storage section, the dust case storage section is provided with a detachable dust case, and an outer lid that can be opened and closed to close the dust case storage section is provided. A vacuum cleaner characterized by: 5. In the item described in claim 1, the main body case is provided with a dust case storage section, the dust case storage section is provided with a dust case that can be attached and detached, and an outer lid that can be opened and closed to close the dust case storage section is provided. The dust case is box-shaped, with an opening at the top, filters are provided on five sides of the dust case, a dust inlet is provided in the outer lid, and the discharge part of the dust inlet faces the opening of the dust case. A vacuum cleaner characterized by: 6. A vacuum cleaner according to claim 5, characterized in that a flexible bag-shaped filter is provided within the dust case.