JPS6136204Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a dust removal device for a vacuum cleaner. The dust removal mechanism of conventional vacuum cleaners utilizes the winding and pulling force of the cord of a cord reel. However, with this method, there is no problem because the pulling force for the cord is done manually, but the winding in of the cord is done by the spring spring installed on the cord reel, so the torque of the spring spring must be increased. This not only increases costs, but also increases the danger during assembly.Also, if you wind up the cord when the dust collection case is separated from the main body case, such as when throwing away dust, the cord will get caught up fairly quickly as there is no dust removal mechanism, and the hood will be damaged. The plug attached to the tip collided with the main unit, causing it to jump out and pose a danger.

Therefore, the purpose of this invention is to create a device that can remove dust adhering to a filter more efficiently and hygienically.In particular, when pulling out the cord, a strong impact force for removing dust is applied to the cord. This provides a vacuum cleaner in which a weak impact force is applied to the filter to remove dust when it is wound up.

One embodiment will be described below with reference to the drawings.

1 is a main body case which has 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; 5 is a main body case which can be detachably attached to the main body case 1 via a latch 6; The attached dust collection case has an intake port 7 at the front and an opening 8 at the rear.
is formed.

9 has a sealing gasket 10 fixed to the outer periphery,
Bearing hole A11 in the center, many ventilation holes 1 on the outside
2, the opening 8 of the dust collection case 5 is
It is removably provided in the dust collection case 5 so as to close the dust collection case 5. Reference numeral 13 denotes a cylindrical wave filter, and a bearing hole B14 provided at the center thereof is rotatably inserted into a bearing hole A11 of the frame wall plate 9.

Reference numeral 15 is attached to cover one end of the cylindrical wave filter 13, a part of which is a sealing gasket that is in contact with the frame wall plate 9, and 16 is attached to the outer periphery of the bearing hole A11 of the frame wall plate 9; A main striking portion 17 extending to the inner surface of the cylindrical wave filter 13 and repelling the inner surface, that is, the exhaust side when the wave filter 13 rotates, is rotatably inserted and supported in the bearing hole B14 of the wave filter 13. A drive shaft, one end of which has a manual knob 18 and an exhaust port 1.
9 Further, in the center thereof, one end is connected to a gear 21 having a movement prevention portion 20 of the wave filter 13 extending to the vicinity of the end face of the main body case 1, and the other end is connected to the end face of the wave filter 13, that is, the intake air when the other end rotates. It is combined with an auxiliary striking part 22 that repels the side and removes dust.

23 is the bearing hole B1 of the corrugated filter 13 at one end.
A drive spring A is supported at one end of the drive shaft 17, and the other end is wound around one end of the drive shaft 17, and the drive shaft 17 is rotated only in one direction, that is, only in the winding direction of the drive spring A23, to the waveform filter 13. When rotating in the other direction, the drive spring A23 becomes large in diameter and slips between it and the drive shaft 17, so that rotation is not transmitted to the wave filter 13.

24 is the other end of the drive shaft 17, and the auxiliary striking part 22
The coupling tool A, 25 is rotatably supported between the
7, the drive spring B is wound around the drive spring A2.
Similar to 3, rotation is transmitted only in one direction. A packing plate 26 is attached to the drive shaft 17 and seals the bearing hole B14 of the wave filter 13.

A pre-filter 27 is detachably attached to the frame wall plate 9 so as to cover the periphery of the wave filter 13, and has a net 28 on one side and a support hole 2 in the center.
9. A door 30 is provided below to throw away the dust removed by the corrugated filter 13 to the outside.

Reference numeral 31 denotes a dust remover that comes into contact with the outer surface of the net 28 of the prefilter 27, and one end thereof passes through the support hole 29 and is attached with a connector B32 that is detachably connected to the connector A24.

33 is rotatably supported by the frame wall plate 9, one side meshes with the gear 21, and the other side transmits the rotational force from the cord reel device 3 when the dust collection case 5 is coupled to the main body case 1. A transmission tool 34 is rotatably attached to the main body case 1, and an intermediate connector is detachably connected.

Since this device has the above-described configuration, when the cord is pulled out from the main body when using the vacuum cleaner, the rotational force of the cord reel device 3 is transmitted to the gear 21 via the transmitting device 34 and the intermediate connector 33. The drive shaft 17 connected to this gear 21 naturally also rotates. As a result, the drive spring A23 and the drive spring B25 wound around the drive shaft 17 are compressed freely, and the wave filter 13 and the connector A
24. Rotate the dust remover 31 via the connector B32. Naturally, the auxiliary striking part 22 coupled to the drive shaft 17 also rotates.

Therefore, the fine dust adhering to the corrugated filter 13 is repelled and removed by the main striking part 16 and falls into the prefilter 27. Coarse dust adhering to the net surface 28 of the prefilter 27 is removed by the rotational force of the dust remover 31. The auxiliary striking part 22 has no dust removal function because the wave filter 13 also rotates at the same time.

In this way, each dust removal can be performed by pulling out the cord during use. After that, by cleaning, the pre-filter 27 captures coarse dust, and the wave filter 13 captures fine dust. At this time, if each of the filters 13 and 27 becomes clogged, all the suction force from the electric motor 2 is applied to the sealing gasket 15, so the wave filter 13 is moved to the frame wall plate 9 side, and the frame wall plate 9 is also moved. Move it to the main case 1 side.

However, the movement prevention wall 20 provided at the center of the gear 21 comes into contact with the main body case 1 and prevents it from moving more than necessary, so that the cord can be pulled out from the main body even when the filters 13 and 27 are clogged.

Thereafter, when the cleaning is finished and the cord is wound up on the cord reel device 3, the cord is transmitted to the gear 21 in a reverse rotation to that when it is pulled out. Drive springs A, B, 23, and 25 each attached to the drive shaft 17 have large diameters, slip, and do not impart rotation to the wave filter 13 and the dust remover 31. However, only the auxiliary striking part 22 rotates, and the waveform filter 1
3 to provide a dust removal effect by applying vibration.

Also, when cleaning each filter 13, 27,
The dust remover and drive shaft 17 are attached to the pre-filter 27 even when disassembled during service.
Since the space between the prefilter 27 and the prefilter 27 is removably configured by the respective connectors 24 and 32, the prefilter 27 can be removed from the frame wall board 9 at the same time. Naturally, when the prefilter 27 is set on the frame wall board 9, the respective connectors 24 and 32 are connected.

As mentioned above, this idea is based on the fact that the main and auxiliary striking parts that respectively repel the exhaust and intake sides of the wave filter are installed on the drive shaft, and the main and auxiliary striking parts and the drive shaft are interlocked with the drive of the cord reel. In addition to driving either the main or auxiliary striking part, the striking force is applied to repel the wave filter of the striking part that is driven when the cord reel is reeled in, and the wave filter of the striking part that is driven when the cord reel is pulled out. A connecting/driving means is provided that is weaker than the repelling impact force, and each impact part on both the intake and exhaust sides of the filter is repelled, so that the cord reel is pulled out and retracted, and the cord reel is retracted. Dust removal from the filter can be performed separately using the driving force. Furthermore, since the striking force for repelling the filter is made weaker when the filter is retracted than when it is retracted, it is possible to provide a safe vacuum cleaner with a weak spring force when the cord is retracted.

[Brief explanation of the drawing]

The figures show an embodiment of the vacuum cleaner of this invention, in which Fig. 1 is a longitudinal sectional view of the vacuum cleaner body, Fig. 2 is a longitudinal sectional view of the filter device, Fig. 3 is a perspective view of the drive spring, and Fig. 3 is a longitudinal sectional view of the vacuum cleaner body. Figure 4 is a plan view of the dust remover. 1 is a main body case, 5 is a dust collection case, 9 is a frame wall plate, 13 is a corrugated filter, 17 is a drive shaft, 16
20 is the main striking part, and 20 is the auxiliary striking part.

Claims (1)

[Scope of utility model registration request] A main body case with a built-in electric blower and cord reel, a dust collection case that is detachably connected to this main body case, a wave filter that is detachably held within this dust collection case, and a central part of this wave filter. A drive shaft that rotates in response to a rotational driving force from the main body, a main/auxiliary striking part that repels the exhaust side and an intake side of the wave filter, respectively, by this drive shaft, and the main/auxiliary striking part and the drive shaft. is provided between the main body and drives either the main or auxiliary striking part in conjunction with the drive of the cord reel when the cord reel provided on the main body is pulled out and reeled in, and the striking part which is driven when the cord reel is reeled in. A vacuum cleaner characterized by comprising a connecting/driving means that makes a striking force for repelling the wave-shaped filter weaker than a striking force for repelling the wave-shaped filter of the striking part that is driven when the pulling unit is pulled out.