JPS5812698Y2 - vacuum cleaner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vacuum cleaner that uses the rotation of a cord reel to automatically operate a dust remover that removes dust attached to a fine-mesh filter.

Conventionally, with this type of vacuum cleaner, when the cord wound on the cord reel is pulled out or rewound, the dust that has adhered to the filter is unintentionally removed.
Strong suction power can be maintained for a long time without the filter becoming clogged.

Therefore, it is possible to collect a very large amount of dust.

However, it has the drawback that incomplete dust removal is repeatedly performed depending on the operating state of the cord reel serving as the power source, and once the filter becomes clogged, it is difficult to restore the initial air volume.

The present invention addresses the above-mentioned drawbacks and aims to maintain a strong suction force at all times, ensure dust removal once the filter becomes clogged, and restore the initial air volume. The objective is to provide a device that allows easy dust removal operations and does not cause malfunctions such as the dust removal body not rotating.

That is, the present invention uses the rotation of a cord reel to remove dust from a filter, which is a filtration device.
The dust removing body of the dust removing mechanism is provided on the back of the filter, and another manual operating body surrounding this dust removing body is provided so as to be exposed to the outside when the dust case is removed from the main case. .

Hereinafter, the present invention will be explained in detail based on the drawings of the embodiments.

1 is a main body case, and a handle portion 2 is integrally formed therein.

3 and 4 are ribs provided inside the main body case 1;
4, the inside of the main body case 1 is divided into a motor storage chamber A, a cord reel storage chamber B, and an exhaust chamber C.

5 and 6 are anti-vibration rubbers, and the electric blower 7 is housed in the electric blower storage chamber A by the anti-vibration rubbers 5 and 6.

Reference numeral 8 denotes a shielding plate made of a steel plate, which is held between the rib 3 and the vibration isolating rubber 6.

A reel support plate 9 is provided in close contact with the rib 4, and the reel support plate 9 and the shielding plate 8 form a dust portion for guiding airflow from the electric blower storage chamber A to the exhaust chamber B.

Reference numeral 10 denotes a contact stand, which is attached to the reel support plate 9 together with the reel shaft 11.
is screwed to.

Reference numeral 12 denotes a cord reel rotatably held by the reel shaft 11. On the same side wall of the cord reel 12, a brake link 13 of a stopper for regulating the winding movement of the cord 16 and the rotational force of the cord reel 12 will be described later. A gear 14 for transmitting information to the dust removal mechanism is integrally provided.

15 is a mainspring spring with one end fixed to the reel shaft 11 and the other end fixed to the cord reel 12.
The energy accumulated in the cord 16 is used to cause the cord 16 to wind.

17 is a driving gear that meshes with the gear 14, and this driving gear 1
7 is attached to a reel support plate 9.

Reference numeral 18 denotes a face gear attached to the reel support plate 9, which meshes with the drive gear 17 to turn its axis of rotation by 90°.

Reference numeral 19 denotes a drive coupling provided integrally with the face gear 18, and is disposed on the opening surface of the main body case 1.

20 is the rotating shaft of the drive gear 17, 21 is the face gear 18
22 is a dust indicator for displaying the degree of dust accumulation, and indicator mounting tube 23
It is installed on the handle part 2 of the main body case 1.

Reference numeral 24 denotes an exhaust port for discharging airflow from the exhaust chamber C to the outside of the main body case 1, and a clean filter 25 is disposed inside this exhaust port 24.

This clean filter 25 serves both to rectify the exhaust flow and to muffle sound, and is made of a breathable material such as urethane foam.

A dust case 26 stores dust collected by a hose (not shown) for sucking the dust, and the inside of the dust case 26 is divided by a rib 27 into a coarse dust chamber E and a fine dust chamber F.

28 is a suction port to which a hose is connected, 29 is a check valve provided on the suction port 28, 30 is a handle screwed to the dust case 26, and 31 is a removably held dust case 26 on the main body case 1. Spring body 3 with a clamp for
2, and is slidably provided on the handle portion 30 via the handle portion 2.

33 is a filtration device detachably attached to the opening of the dust case 26, which includes a net filter 34 and a main filter 3.
5. Dust removal mechanism 36 and backing 3 that holds them
It consists of 7.

The dust removal mechanism 36 includes a support plate 38, a dust removal gear 39, and a rotating plate 41.
．． It consists of a dust removal knob 42, a transmission gear 43, a shaft 44, a passive coupling 45, and a coupling spring 46.

This dust removal mechanism 36 is arranged behind the main filter 35.

A dust removal gear 39 equipped with a dust removal body 40 that slides on the back surface of the main filter 35 is rotatably attached to the support plate 38.

A dust removal knob 4 is provided on a rotary plate 41 that rotates the dust removal gear 39.
2 are integrally provided, and this dust removal knob 42 can be operated by hand only when the ribbed case 26 is removed from the main body case 1.

A transmission gear 43 fixed to the shaft 44 by press fitting or screwing is attached to the support plate 38 so as to mesh with the dust removal gear 39.

A passive coupling 45 is provided on the shaft 44 using a coupling spring 46 so as to be slidable up and down.

By fitting this passive coupling 45 into the drive coupling 19 provided on the main body case 1 side, the rotational force of the cord reel 12 is transmitted between the gear 14 - the drive gear 17 - the face gear 18 - the drive force coupling 19 - The transmission is transmitted to the dust removal body 40 via the passive coupling 45 and the dust removal gear 39, and the dust removal body 40 rotates to filter the main filter 35.
The back of the is rubbed.

47 is a running wheel provided on the main body case 1, and 48 is a running wheel provided on the dust case 26.

The main filter 35 is formed by folding cloth, filter paper, or the like into a mountain shape having multiple pleats 49.

In the above configuration, when the cord 16 wound around the cord reel 12 is first pulled out in the direction of the arrow P, the cord reel 12 rotates as shown by the dotted arrow around the rotation center a, thereby meshing with the gear 14. Drive gear 17
It also rotates around the central axis as shown by the dotted arrow.

When the drive gear 17 rotates, the face gear 18 rotates,
In addition, since the driving coupling 19 and the passive coupling 45 are capable of transmitting power through the meshing center C, the connecting gear 43 rotates.

As a result, the dust removal gear 39 rotates, and the dust removal body 40 flips the folds of the main filter 35, causing the dust attached to the main filter 35 to fall into the dust case 26.

In this way, during normal use, cord reel 1 (2
Dust removal work is carried out unconsciously by putting in and taking out.

The characteristics are as shown in the Y curve in Figure 4. It will be done.

The two curves in Figure 4 are the characteristics when performing manual dust removal work, and it can be seen that the dimension curve collects far more dust than these two curves.

In other words, in the case of the Y curve, if you suck in the same amount of dust, you can continue cottoning and removing with a strong suction force.

However, if the main filter becomes clogged, the cord reel 12
During the dust removal work, it is impossible to recover from point X2 in Figure 4.

,,,. In this case, when the dust case 26 is detached from the main body case by operating the clamp 31, the dust removal mechanism 36 is separated into the main case 1 side and the dust case 26 side at the line QQ' in FIG. At the same time, the dust removal knob 42 is exposed, so by holding this dust removal knob 42 and rotating it in the direction of arrow S, the main filter 3 can be removed.
The folds 49 of No. 5 may be strongly flicked with the dust remover 40.

By doing this, it is possible to recover the air volume to the point X3 in FIG. 4, that is, to the initial air volume.

In addition, the dust removal body 40 of the dust removal mechanism 36 is brought into contact with the back side of the filtration device, which is opposite to the dust collection chamber, so as to repel it.
The dust removal operation is easy.

In other words, if the dust remover is placed on the side of the dust collection chamber, or if the filter is rotated instead of the dust remover, the dust inside the dust collection chamber and the dust attached to the filtration device will get in the way, so the dust remover or The rotation of the filtration device becomes heavy.

However, in the present invention, since the dust removing body, which is a rotary cloth, is located on the back side of the filter device, the dust removing body can be rotated without being hindered by dust.

Since the dust removal operation becomes easier, the dust removal body can be surrounded more quickly, and the dust removal is performed more efficiently.

Since the cord reel 12 not only winds up the cord 16 but also removes dust, the mainspring spring 1 that rotates the cord reel 12 is
The burden of 5 will increase.

Since the dust removal body 40 can be operated easily and does not impose a heavy load, the cord reel 12 is reliably rotated by the spring force of the mainspring spring 15.

When turning the dust removal body 40 using the dust removal knob 42 of the manual operating body, the dust removal operation is light, so that when discarding the dust in the dust case 26, the dust can be removed sufficiently by turning the dust removal knob 42 by hand.

Well, dust removal body 40. Where it is located, only the air that has been cleared of all dust flows.

Since dust does not adhere to the dust removing body 40, dust may get caught,
Failures due to entanglement do not occur.

FIG. 3 shows another embodiment of the passive coupling 45.
A dust removal knob 42 is provided directly on the holder.

Thereby, the dust removal mechanism 36 can be further simplified.

As described above, according to the present invention, the cord reel is always rotated before and after using the vacuum cleaner.

Therefore, dust is removed from the filter device unconsciously, so that a strong suction force can be maintained for a long time.

Furthermore, even if the filtration device becomes clogged, by removing the dust case from the main body case, the dust can be removed sufficiently using the manual operating body, so that the clogging can be reliably cleared.

Furthermore, since the dust removing body is provided on the back side of the filter device ρ, when surrounding the dust removing body, dust in the dust collecting chamber does not interfere with rotation.

Since the rotation operation of the dust removing body becomes easier, dust can be removed sufficiently.

At the same time, since dust does not get caught or wrapped around the dust removing body, no malfunctions occur.

[Brief explanation of the drawing]

, FIG. 1 is a vertical sectional view showing one embodiment of the present invention, FIG. 2 is an explanatory diagram of the operation of the main part of the invention, FIG. 3 is an explanatory diagram of the operation of the main part showing another embodiment of the invention, and FIG. The figure is a characteristic curve diagram of dust collection capacity and air volume. 7... Electric blower, 12... Cord reel, 1... Body case, 26... Dust case, 35... Main filter bottom , 40...
... Dust removal body, 36 ... Transmission mechanism, 42 ...
...Dust removal knob.

Claims (1)

[Scope of utility model registration request] A main body case that houses an electric blower and a cord reel, a dust case that is detachably connected to the main case, a filtration device that is detachably attached to the dust case and has a dust removal mechanism, and a dust case that rotates toward the main case. A drive coupling is connected to the cord reel to freely support it and transmit the rotation of the cord reel, and when the dust case is attached to the main body case, it engages with the drive coupling, and when the dust case is removed from the main body, it is driven. It consists of a passive coupling that detaches from the coupling,
This passive coupling is rotatably supported on the filtration device side and connected to the dust removal mechanism so that rotational force is transmitted, and an airtight backing is provided around the filtration device to abut against the inner wall surface of the dust case, The space defined by the inside of the dust case and the filtration device is the dust collection chamber, and the dust removal mechanism is placed on the back side of the filtration device on the opposite side of this space.
The rotatable dust removal body of the dust removal mechanism is installed to apply dust removal vibration to the back of the filtration device, and the manual operating body for turning the dust removal body by hand is located in a position that is exposed to the outside when the dust case is removed from the main case. A vacuum cleaner characterized by: