JPS6053616B2 - vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a vacuum cleaner that automatically removes dust from a filter device using the power of a mainspring, and can also perform manual dust removal if necessary.

2. Prior Art Conventionally, in this type of vacuum cleaner, the return spring of the cord reel was used to remove the filter device, skewer, lhν.
1, 1゛L↓Japanese f3rrrfrha 8786 women's gazette), or a separate mainspring for dust removal, which is connected to a cord reel to store power (Special Publication No. 55-6834)
Publication No. 4).

Problems to be Solved by the Invention However, in these conventional devices, only automatic dust removal using a mainspring was intended, and dust removal through the filter was sometimes insufficient.

For example, when the amount of cord pulled out from the cord reel is small, the power stored in the mainspring is small and the dust removal means does not exhibit a great dust removal function. The present invention solves these conventional problems by adding a manual release function.

Means for Solving the Problems In order to solve these conventional problems, the present invention provides a main body of a vacuum cleaner with a built-in fan motor, a filter that is detachably connected to the main body of the vacuum cleaner, and a filter. a dust case having a device and a dust collection space; a dust removal actuating body of the filter device driven by a drive source on the main body side of the vacuum cleaner; and a dust case when the dust removal actuating body of the filter device is driven by the drive source on the main body side of the vacuum cleaner. This mainspring device is composed of a mainspring case that supports one end of the mainspring, and a case lid that supports the other end of the mainspring and is movable with respect to the mainspring case. , and one of the mainspring case and the case lid is connected to the dust removal means of the filter device, and the other is connected to the dust removal operating body only when operating in one direction.

Function: According to this configuration, the dust removal means can be driven manually, and it is possible to reliably remove dust from the filter device, which is insufficient with automatic dust removal operation alone.

Furthermore, since the mainspring is substantially separated during this automatic dust removal, its damage can also be prevented. EXAMPLES Below, examples will be described with reference to the accompanying drawings.

In the figure, 1 is the main body of the vacuum cleaner with a built-in fan motor 2 and cord reel 3, and 4 is a dust case that is detachably connected to the front side of the vacuum cleaner, that is, the suction side of the fan motor 2 via a buckle 5; A waste dust port 7 that can be opened and closed by a lid 6 is formed in the holder, and a filter device 8 is removably inserted into the rear opening. and,
The space between the waste dust port 7 of the dust case 4 and the filter device 8 is set into a coarse dust chamber 10 and a fine dust chamber 11 separated by a partition wall 9. Both the coarse dust chamber 10 and the fine dust chamber 11 are opened to the waste dust port 7.

The lid body 6 is obtained by combining a front plate 12 and a back plate 14 which has a backing 13 attached to the outer circumference that fits tightly to the mouth edge of the waste dust port 7, and the upper part of the back plate 14 is attached to the dust case 4 with a shaft 15. It is pivotally connected via.

16 is a spring that biases the lid 6 in the opening direction, 17 is a suction port, 18 is a buckle plate provided inside the lid 6 so as to be able to move up and down, and a hook portion 19 protrudes from the bottom of the lid 6. It engages with the lower protrusion 20 of the dust case 4 to maintain the closed state of the lid 6.

21 is a buckle plate 18 so that the hook portion 19 engages with the protrusion 20.
A spring 22 that urges the button upward is an operation button of the buckle plate 18, and is located in front of the handle 23 on the Gusto case 4.

Note that the operation part of the buckle 5 is located on the rear side of the handle 23. Next, the filter device 8 has a fine dust outlet 2 at the bottom.
4, and a filter case 25 with an open front and rear sides, a disk-shaped primary filter 26 that closes the front opening of the filter case 25, and a filter case that is downstream of the primary filter 26 and The main components are a cylindrical wave-shaped secondary filter 27 that faces inside the filter case 25, and a frame 28 that is covered in the rear open portion of the filter case 25. More specifically, the frame body 28 has a shaft support cylinder 29 that protrudes forward and backward at the center, a vent hole 30 on its outer periphery, and a backing 31 that comes into elastic contact with the inner peripheral surface of the filter case 4 is attached to the outermost periphery. This is what I did.

The rear opening edge of the filter case 25 is connected to the backing 3 mentioned above.
A frame body 28 is connected via 1. Reference numeral 32 indicates a backing that is attached to the front open end of the filter case 25 and provides air tightness between the primary filter 26 and the coarse dust chamber 10.

Further, the secondary filter 27 is constructed by attaching Okikashi in a cylindrical wave shape to a filter aggregate made of a soft material, and a filter end plate 34 made of a rigid material and having a ventilation hole 33 is provided on the rear side. be.

This filter end plate 34 has a backing 3 attached to its outer periphery.
It is integrated with the secondary filter 27 via 5, and holds the same soft secondary filter 27. 36 is a backing that tightens the air between the filter end plate 34 and the frame 28; 37 is a dust remover of the secondary filter 27 provided close to the fine dust outlet 24 of the filter case 25; 38 is the frame 2
A small gear rotatably supported on the outer peripheral part of the rear surface of the gear 8 via a shaft 39, and a ratchet gear 4 such as a ratchet gear is mounted on the front part of the small gear.
0, and a clutch pawl 41 is formed at the rear.

Reference numeral 42 denotes a shaft 43 that is supported within the shaft support cylinder 29 of the frame body 28.
The large gear 44 is a vent hole of the large gear which is provided protruding forward from the center and has a tooth profile formed on the outer periphery to mesh with the tooth profile of the previous small gear 38.

The shaft 43 of the large gear 42 and the filter end plate 34
A shaft 45 formed at the center of the shaft and supported within the shaft support cylinder 29
And the center boss part 46 of the primary filter 26 has a screw 47
When the large gear 42 rotates, the primary and secondary filters 26 and 27 also rotate at the same time.

Reference numeral 48 denotes a mainspring device attached to the front surface of the large gear 42, which is composed of a mainspring case 49, a case lid 50, and a mainspring 51 housed within the mainspring case 49.

The flange portion 52 of the mainspring case 49 is rotatably supported by circular ribs 53 and pawls 54 integrally formed with the large gear 42, so that it does not separate from the large gear 42.

On the other hand, in the case lid 50, the center boss 55 is connected to the shaft support tube 2 of the frame body 28.
9 and is in a relatively rotatable relationship with respect to the mainspring case 49. 56, 57 are shaft support cylinders 29
In order to prevent the case lid 50 from rotating, the coaxial support tube 29 and the case lid 50 are respectively formed with a convex portion and a recess that fit together. One side is set on an inclined surface.

Reference numeral 59 indicates a locking claw pivotally installed on the back surface of the large gear 42, and the mainspring case 49 is moved by the biasing force of the elastic arm 60 integrated with the locking claw.
It is in contact with the outer peripheral surface of.

When the large gear 42 rotates in one direction, the locking pawl 59 engages with the projection 58, and when the large gear 42 rotates in the opposite direction, it climbs over the projection 58 via the inclined surface. In the mainspring device 51, the inner end of the mainspring 51 is fixed to the boss 55 of the case lid 50, and the outer end is fixed to the mainspring case 49.
It is held in place with frictional force on the inner surface of the

Reference numeral 61 indicates a pawl piece corresponding to the ratchet wheel 40 of the small gear 38, and 62 an operating lever.These are disposed on the rear and front sides of the frame 28, and are connected by a connecting shaft 63.

64 is a spring that urges the claw piece 61 in the direction of engagement with the ratchet wheel 40; 65 is an automatic dust removal button that presses the operating lever 62; 66 is a spring for its return; and 67 is the small gear 38.
The output shaft 68 is a main body side clutch pawl that engages only when rotating in one direction with the clutch pawl 41 of the main body, and is interlocked with the cord reel 3.
It is attached to.

69 is a handle of the main body 1 of the vacuum cleaner, and 70 and 71 are wheels provided at the dust case 4 and the lower part of the main body 1, respectively.

In the above configuration, the dust-containing air flowing in through the suction port 17 is first filtered through the primary filter 26 to remove coarse dust, then through the secondary filter 27 to remove fine dust, and only the purified air reaches the fan motor 2. The coarse dust is collected in the coarse dust chamber 10, and part of the fine dust adheres to the secondary filter 27, and the other part passes through the fine dust outlet 24 of the filter case 25 to the fine dust chamber 10. Fall. Next, we will discuss the dust removal operation.

Now, when the power cord is pulled out from the cord reel 3 to use the vacuum cleaner, the rotation of the cord reel 3 is transmitted to the main body side clutch pawl 67 and the clutch pawl 41 via the output shaft 68. This causes the small gear 38 and the large gear 42 to rotate. The rotation of the large gear 42 is caused by the rotation of the large gear 42.
Next, the dust is transmitted to the secondary filters 26 and 27, and as the primary filter 26 rotates, the dust adhering to its P surface is rubbed off by the coarse dust in the coarse dust chamber 10, and the secondary filter 27 is The dust remover 37 is vibrated to shake off fine dust attached thereto. Furthermore, the large gear 4
The mainspring 51 of the mainspring device 48 is wound by the second rotation. That is, at this time, the locking pawl 59 provided on the large gear 42
engages with the protrusion 58, so that the mainspring case 49 rotates together with the large gear 42, while the case lid 50
is prevented from rotating relative to the frame body 28 by fitting the concave and convex portions 57 and 56, and thus the mainspring 51 is wound. It should be noted that the ratchet wheel 40 of the small gear 38 is not engaged with the pawl piece 61 during the dust removal operation that occurs when the power cord is pulled out.

Conversely, when winding the power cord onto the cord reel 3, the engagement of the main body side clutch pawl 67 with the clutch pawl 61 is released, and the pawl piece 61 engages with the pawl wheel 40, so that Reversal of large gear 42 and small gear 38 is prevented.

In this way, the mainspring 5 responds to the power cord drawer.
1 is wound and stores power, but when the winding limit is reached, only the mainspring case 49 overcomes the frictional force between the outer end of the mainspring 51 and the inner surface of the mainspring case 49. It is something that spins idly.

In addition, when discarding coarse and fine dust accumulated in the dust case 4, separate the dust case 4 from the main body 1 of the vacuum cleaner,
Next, the automatic dust removal button 65 is pushed.

However, the pawl piece 61 engages the pawl wheel 40 via the operating lever 62.
From the point of separation, the power of mainspring 51 is
The locking claw 59 engaged with the protrusion 58 of the mainspring case 49
is transmitted to the large gear 42 and then to the small gear 38 via. When the large gear 42 rotates, 1
Next, dust removal is performed before the secondary filters 26 and 27 are discarded.

After that, carry the dust case 4 to an appropriate place and place the lid 6
If you open it and point the waste port 7 downward, both coarse and fine dust can be thrown away at the same time. Further, when automatic dust removal by the mainspring 51 is insufficient, the large gear 42 can be used to manually remove dust.

Here, when the large gear 42 is rotated in one direction, the locking pawl 59
The protrusion 58 of the mainspring case 49 is climbed over through the slope thereof, and the mainspring case 49 is substantially separated from the protrusion 58 .

Therefore, the mainspring 51 is not rotated too much in the opposite direction after the stored power is released, and damage to the mainspring 51 does not occur. In the above embodiment, a cord reel was used as the winding drive source for the mainspring, but it is also possible to use a windmill that is operated by the rotational force of the fan motor itself or by the wind induced by the fan motor. .

Furthermore, instead of large and small gears as a power transmission means, a friction wheel may be used, or one linked by a belt may be employed. Effects of the Invention As described above, the present invention provides a vacuum cleaner body with a built-in fan motor, a dust case that is detachably connected to the vacuum cleaner body and has a filter device and a dust collection space, and a vacuum cleaner body. It consists of a dust removal actuating body of the filter device that is driven by the drive source on the main body side, and a mainspring device that stores power when the dust removal actuation body is driven by the drive source on the main body side of the vacuum cleaner. It consists of a mainspring case that supports one end of the mainspring, and a case lid that supports the other end of the mainspring and is movable with respect to the mainspring case, and one of the mainspring case and the case lid serves as a dust removal means of the filter device. The other is connected to the dust removal actuator only when operating in one direction, so by releasing the power of the mainspring, you can remove dust from the filter device at will. This can be done reliably, and the function of the filter device can be restored well.

Furthermore, since the dust removal actuator is substantially separated from the mainspring when operated in one direction, it is possible to manually remove dust from the filter device, making it extremely convenient to use.

Moreover, the damage to the mainspring can be reliably prevented from the above.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway sectional view of a vacuum cleaner according to an embodiment of the present invention, Fig. 2 is a sectional view of the filter device section, Fig. 3 is a perspective view thereof, and Fig. 4 is a shaft support cylinder in the frame body. FIG. 5 is a perspective view of the dust removal operating body (large gear) and mainspring device, FIG. 6 is a front view of the same, and FIG. 7 is a perspective view of the automatic dust removal operation section. 1...Vacuum cleaner main body, 2...Fan motor, 4...Dust case, 8...Filter device, 10, 11...Dust collection Space (crude dust room,
Fine dust chamber), 42...Dust removal operating body (large gear), 48
...Spring device, 49...Spring case, 50...Case lid, 51...Spring.

Claims (1)

[Claims] 1 A vacuum cleaner body with a built-in fan motor, a dust case that is detachably connected to the vacuum cleaner body and has a filter device and a dust collection space, and is driven by a drive source on the vacuum cleaner body side. It consists of a dust removal actuating body of the filter device and a mainspring device that stores power when the dust removal actuation body is driven by the drive source on the main body side of the vacuum cleaner, and this mainspring device includes a mainspring case that supports one end of the mainspring. , a case lid that supports the other end of the mainspring and is movable with respect to the mainspring case,
A vacuum cleaner characterized in that one of the mainspring case and the case lid is linked to a dust removal means of a filter device, and the other is linked to a dust removal operating body only when operating in one direction.