JPS6035471Y2 - vacuum cleaner - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a dust removal device for a vacuum cleaner.

Conventionally, as shown in, for example, Japanese Utility Model Application Publication No. 51-40155, a main body case has a built-in electric blower and a cord reel device, and a dust collector is removably connected to a communication opening of the main case to the blower. A device is known that includes a case and a cylindrical waveform filter provided in the dust collection case, and uses the driving force generated by pulling out and winding the cord of the cord reel device to remove dust.

Further, in this vacuum cleaner, dust is removed by rotating a dust remover disposed at the center of the waveform filter and flicking the fixed waveform filter.

However, by fixing the dust sweeper and rotating the large waveform filter, it is possible to apply stronger vibrations to the waveform filter than by rotating the dust sweeper, and it is easier to remove dust etc. captured by the waveform filter. Such a vacuum cleaner has been proposed.

By the way, in a vacuum cleaner that removes dust from the waveform filter by rotating the waveform filter and applying it to a fixed dust blower, if the vacuum cleaner is operated with the waveform filter clogged and the electric blower is driven, The problem is that the entire corrugated filter is sucked into the main body case by the air intake from this blower, and the rotating part comes into pressure contact with the stationary part, creating a large resistance even when the cord is pulled, making it difficult to pull out the cord. was there.

The purpose of this invention is to solve the above-mentioned problems and provide a vacuum cleaner that allows the cord reel device to be pulled out without any trouble even when the waveform filter in the section is clogged, without increasing the cost. It is said that

That is, this invention fixes the drive shaft placed in the center of the wave filter concentrically with the rotating tool driven by the driving force of the cord reel device in the vacuum cleaner described above, and the drive shaft is fixed when the cord is pulled out. The wave filter is rotated from the shaft via a one-way clutch, and a movement prevention part is formed at the center of rotation of the rotating tool to protrude toward the communication port side of the main body case, and to face the fixing member on the communication port side. This is what I did.

Therefore, according to this invention, when the corrugated filter becomes clogged, the movement prevention part comes into pressure contact with the fixing member on the main body case side, causing the corrugated filter and the frame wall plate supporting it to move in the direction of the drive shaft axis more than necessary. Not only can it prevent movement, but especially since the movement prevention part is provided at the center of the rotating tool, the rotating tool can be stably supported on the main body case side even if the pressure contact area of this part is relatively small. If you pull the cord of the cord reel device while using a vacuum cleaner when the wave filter is clogged, the rotating tool will rotate smoothly due to the small resistance between it and the main case, and the operation of pulling out the cord will also be smooth. Moreover, since the structure is simple, just forming a movement prevention part on the rotary tool, the cost is hardly increased.

1 is a main body case which houses an electric blower 2 in its upper part and a cord reel device 3 in its lower part, and has a communication port 4 on its side; This is a dust collection case attached to a dust collection case, with an intake lower at the front and an opening 8 at the rear.

Reference numeral 9 denotes a frame wall plate having a sealing gasket 10 fixed to its outer periphery, a bearing hole All in the center, and a number of ventilation holes 12 on the outside thereof, and is detachable so as to close the opening 8 of the dust collection case 5. It is provided in the dust collection case 5.

(2) is an integrally molded cylindrical waveform filter, and a bearing hole B14 portion in the center thereof is rotatably inserted and supported in the bearing hole All of the main frame wall plate.

15 is a sealing gasket that covers the exhaust side end face of the cylindrical wave filter 13 and has a convex portion 16 in the center that is mainly in contact with the frame wall plate; 17 is attached to the outer periphery of the bearing hole A11 of the frame wall plate 9; 18 is a main striking part, that is, a dust sweeper, whose one end extends to the inner surface of the cylindrical wave filter (2) and repels the inner surface when the wave filter (2) rotates; This is an inserted and supported drive shaft.

Reference numeral 22 denotes a rotary tool connected to one end of the drive shaft 18, which includes a manual knob 19, an exhaust port 20, and a wave filter 1 whose one end extends near the end surface of the main body case 1 at the center thereof.
3 and a gear on the outer periphery.

The movement prevention portion 21 has a cylindrical shape and its bottom is fixed to the drive shaft 18 with screws.

23 is connected to the other end of the drive shaft 18 and is connected to the drive shaft 11.
This is an auxiliary striking part that repels dust from the end face of the waveform filter U when it rotates together with the waveform filter U.

24 is a one-way clutch A whose one end is supported by the end of the bearing hole B14 of the wave filter (2) and whose other end is a coil spring wound around one end of the drive shaft 18, which uniformly controls the rotation of the drive shaft 11. Rotation is transmitted only in the direction, that is, only in the winding direction of the coil spring, to the wave filter ■; when rotating in the other direction, the coil spring becomes larger in diameter and slips between it and the drive shaft 11, and rotation is not transmitted to the wave filter ■. It is intended to do so.

25, a coupling tool A126 rotatably supported between the other end of the drive shaft 11 and the auxiliary striking part 21, one end is supported by the coupling tool A25, and the other end is wound around the drive shaft 11. The one-way clutch B is made of a coiled spring and transmits rotation only in the same direction as the one-way clutch A24.

27 is attached to the drive shaft 11, and a waveform filter ■
This is a packing plate that seals the bearing hole B14.

28 is a pre-filter detachably attached to the frame wall plate so as to cover the periphery of the corrugated filter 13;
It has a net 29 on one side, a support hole 30 in the center, and a door 31 below to throw away the dust removed by the corrugated filter 11 to the outside.

Reference numeral 32 denotes a dust remover that comes into contact with the outer surface of the net 29 of the pre-filter 28. One end of the dust remover passes through a support hole 30, and a connector B33 is attached to the connector B33, which is detachably connected to the connector A25.

Reference numeral 34 denotes an intermediate connector rotatably supported by the frame wall plate 9, and one side thereof meshes with the gear of the rotator 22.

35 is detachably connected to the other side of the intermediate connector 34,
A transmission tool 3 rotatably attached to the main body case 1
5, this is rotated by the cord reel device 3 when the dust collection case 5 is coupled to the main body case 1.

Since the vacuum cleaner of this embodiment is configured as described above, when the cord is pulled out from the main body case 1 during use, the rotational force of the cord reel device 3 is transmitted through the transmission device 35 and the intermediate connector 34 to rotate the cord. is transmitted to the tool 22.

Naturally, the drive shaft 1B coupled to this rotating tool 22 also rotates.

As a result, the one-way clutches A24 and B26, which are made up of coil springs wound around the drive shaft (2), each close their coil springs and become free to operate, and the dust remover 32 is connected via the wave filter (2), the connector A25, and the connector B33. Rotate.

Naturally, the auxiliary striking part 23 coupled to the drive shaft 18 also rotates.

Therefore, fine dust attached to the waveform filter 13 is
The dust is removed by the dust remover 17, and the pre-filter
It falls within 28.

Coarse dust adhering to the net surface 29 of the pre-filter 28 is removed by the rotational force of the dust remover 32.

The auxiliary striking part 23 does not have a dust removal function because the wave filter 11 also rotates.

In this way, by pulling out the cord during use, each type of dust removal can be performed.

Thereafter, by cleaning, coarse dust is captured by the pre-filter (2) and fine dust is captured by the corrugated filter (2).

At this time, if each filter 13.28 becomes clogged, all the suction force from the electric blower 2 will be applied to the sealing gasket 15, so the corrugated filter 13 will be moved to the frame wall plate 9 side, and the frame wall plate 9 will also be moved. Move it to the main case 1 side.

However, the movement prevention part 21 provided at the center of the rotating tool 22 comes into contact with the main body case 1, and the waveform filter 13,
To prevent the frame wall board 9 from moving more than necessary.

As explained above, the vacuum cleaner according to the present invention includes a main body case having a communication port that houses an electric blower and a cord reel device, a dust collection case that is detachably connected to the communication port of the main case, and a dust collection case that is detachably connected to the communication port of the main body case. A frame wall plate that is removably provided and has a ventilation hole so as to close an opening provided on the side facing the main case communication port of the dust case, a cylindrical wave filter rotatably supported by the frame wall plate, and the above-mentioned. a dust remover fixed to the frame wall plate and placed on the center side of the corrugated filter to remove dust from the filter; a rotating tool provided in the dust collection case and driven by the driving force of the cord reel device; and a rotating tool fixed concentrically to the rotating tool. A drive shaft is disposed in the center of the waveform filter, and a one-way clutch is interposed between the drive shaft and the waveform filter and is engaged by rotation of the drive shaft in the cord retracting direction of the cord reel device. A movement prevention part is formed at the center of rotation of the tool and protrudes toward the communication port side of the main body case, and this movement prevention part is opposed to a fixing member on the communication port side, so that when the corrugated filter becomes clogged, By press-contacting the movement prevention part to the main body case side, it is possible to not only prevent the corrugated filter and the frame wall plate from moving more than necessary in the direction of the drive shaft axis, but also to
Since the movement prevention part is a cylindrical part provided in the center of the rotating tool, if you pull the cord of the cord reel device while using the vacuum cleaner when the vacuum cleaner is clogged as described above, the rotating tool will break between the main body case and the main body case. Due to the low resistance, it rotates smoothly and the cord can be pulled out smoothly and without any problems.Furthermore, since the movement prevention part is simply formed on the rotating tool,
It is easy to configure and costs very little.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of this invention, and FIG. 2 is a sectional view of the filter device. 1...Body case, 2...Electric blower, 3...Cord reel device, 4...Communication port, 5...Dust collection Case, death...opening,
9...Frame wall plate, 13...Cylindrical wave filter, 17...Dust removal, 18...Drive shaft, 21...Movement prevention Part, 22...
Rotating tool.

Claims (1)

[Scope of utility model registration request] A main body case that incorporates an electric blower and a cord reel device that uses a coiled spring as a driving source, a dust collection case that is detachably connected to the communication port of the main body case to the blower, and a dust collection case that faces the communication port of this dust collection case. a frame wall plate that is removably provided and has a ventilation hole so as to close an opening provided in the frame wall plate, a cylindrical corrugated filter that is rotatably supported by the frame wall plate, and a cylindrical wave filter that is fixed to the frame wall plate and has a ventilation hole; A dust remover placed at the center of the wave filter to remove dust from the filter;
A rotary tool provided in the dust collection case and driven by the driving force of the cord reel device, a drive shaft fixed concentrically to the rotary tool and placed in the center of the waveform filter, and between the drive shaft and the waveform filter. A one-way clutch is interposed and is engaged by rotation of a drive shaft in the cord pulling direction of the cord reel device, and a movement preventing portion is formed at the center of rotation of the rotary tool and protrudes toward the communication port side of the main body case. A vacuum cleaner characterized in that the movement prevention part is opposed to the fixing member on the communication port side.