JPS6249056B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a dust removal device for a vacuum cleaner.

[Conventional technology]

In conventional examples, most dust collection filters for vacuum cleaners have a cross section that is bent into a waveform shape to form pleats, thereby increasing the surface area of the dust collection filter.

[Problem that the invention seeks to solve]

However, the biggest drawback is that fine dust such as cotton dust gets into the valleys of the folds of the dust collecting filter, and the cross section of the folds of the dust collecting filter becomes wedge-shaped, making it difficult to remove them. The problem was that the pressure loss of the dust collection filter increased and the dust collection filter became clogged, resulting in a significant drop in dust collection performance.

For this reason, vacuum cleaner users inserted a needle-like object with a sharp tip into the valley of the folds of the dust collection filter to remove the fine dust, but this damaged the filter material (made of filter paper, etc.) of the dust collection filter. The problem was that dust was not captured sufficiently and leaked into the motor or outside the aircraft. Also, dust removal work is troublesome,
It is unhygienic, and it is difficult to remove the dust sufficiently, making it difficult to maintain the initial dust absorption performance over a long period of time.

Therefore, the purpose of this invention is to make dust removal easier, more efficient and sanitary than before, to improve durability without damaging the dust collection filter, and to maintain the initial dust collection performance over a long period of time. It is an object of the present invention to provide a dust removal device for a vacuum cleaner that can remove dust from a vacuum cleaner.

[Means for solving problems]

The dust removal device for a vacuum cleaner according to the present invention will be explained with reference to FIGS. 1 to 5 of the drawings.
A dust collecting filter 17 is stretched over the wall and bent into a corrugated shape to form folds 17a, and the tip end is inserted into the recess 17b on the back side of the fold 17a of this dust collecting filter 17, and the rear end is inserted into the recess 17b. A plurality of diaphragms 2 with protruding vibration shafts 21, 21a to 21o
0, and operating ribs 22, 22a ₁ to 22a ₇ that guide adjacent vibration shafts 21, 21a to 21o toward each other and have a recess 22b or a protrusion 22b' formed in the intermediate portion. an actuating rotary plate 24 having a plurality of actuating ribs 22, 22a ₁ - 22a ₇ corresponding to the vibration shafts 21, 21a to 21o and having mutually shifted positions in the rotational direction; and a drive for rotating the actuating rotary plate 24. It is equipped with means 25.

According to the configuration of the present invention, the vibration shaft 21 is attached to the vibration plate 20 that operates the folds 17a of the dust collection filter 17.
21a to 21o are provided, and the operating rotary plate 24
A plurality of actuation ribs 22, 22a ₁ - 22a ₇ and actuation ribs 22, _{22a 1} - 22a ₇ are provided with concave portions 22b or convex portions 22b', and each pair of vibration shafts 21, 21a - 21o is moved by rotation of the actuation rotary plate 24. Since the folds 17a are vibrated, dust can be removed more easily, efficiently and hygienically than before, and the durability can be improved without damaging the dust collecting filter 17, and the initial dust suction performance can be maintained for a long time. can be maintained over a period of time. Moreover, the concave portion 22b or the convex portion 22b' can increase the vibration frequency of the diaphragm 20, thereby increasing the dust removal effect.

〔Example〕

To explain the structure of the present invention in more detail according to the first embodiment of the present invention, in FIGS. An electric blower is built into the machine body 1, and 5 is a dust collection box having an intake port 6.
It has a built-in dust collector 7 and a dust remover 8, and is detachably attached to the cleaner body 1 with a buckle 9. 10 is a cord reel, which rotates around a shaft 12 fixed to a bearing 11. 13 is a gear provided on the outer peripheral edge of the cord reel 10, and 14 is an intermediate gear meshed with the gear 13, which transmits rotation to the clutch gear 15. 16 is a rotary pawl that rotates together with the clutch gear 15.

As shown in FIG. 2, the dust collecting device 7 includes a dust collecting filter 17 formed by bending a filter material into a wave shape to form a large number of folds 17a on the front side and a concave portion 17b on the back side, and a frame 18 that supports the dust collecting filter 17. The dust collecting filter 17 is integrally formed of a soft material such as soft vinyl chloride, and the dust collecting filter 17 is installed in the intake passage 6a between the air intake port 6 of the dust collecting box 5 and the electric blower 2. 17 is arranged so that it is stretched. Reference numeral 20 denotes a diaphragm of the dust removing device 8, which is composed of a large number of plate-shaped bodies, which are arranged at predetermined intervals in the lateral direction, and are swingably held in a holding frame 20b by hinges 20a provided on both sides. Cylindrical vibration shafts 21 are formed protruding from the center of the rear end (upper end in FIG. 2) so as to be horizontally aligned with each other. and,
When the holding frame 20b is placed and fixed on the inner bottom surface of the frame 18, the front end (lower end in FIG. 2) of the diaphragm 20 is inserted into the recess 17b of the fold 17a of the dust collecting filter 17 as shown in FIG. .

Reference numeral 23 denotes a bearing body, and an actuating rotary plate 24 is rotatably fitted on the side of the bearing facing the diaphragm 20, and a driving means 2 having a rotating handle as an example from the opposite side.
5 are rotatably fitted and held together by a screw 23' in a bearing body 23. The peripheral edge of this bearing body 23 is fitted and fixed to the frame 18. The actuating rotary plate 24 is provided with actuating ribs 22 on the side of the diaphragm 20 that sandwich the vibrating shafts 21 in pairs. As shown in FIG. 4, this actuating rib 22 is such that the rotation center of the actuating rotary plate 24 is located exactly at the central vibrating axis 21h among the vibrating axes 21a to 21o. 21h
The center positions a to d of each pair of adjacent vibration axes are determined, and circular arc lines 21p to 2 whose radius is the distance between these positions a to d and the center of rotation are defined.
Assume 1s. The arc wires 21p to 21s also extend to the other side of the vibration axis 21h to 2 including the vibration axis 21h.
It passes through the center position of a pair of adjacent vibration axes of 1o. Now, the actuation ribs 22a ₁ to 22a ₇ are located on both sides of these arcuate lines 21p to 21r, respectively, at predetermined positions in the circumferential direction, shifted from each other, and form an arc of a predetermined length, and the arcuate lines 21p to 21r
The opposing interval with r in between is smaller than the mutual interval between the vibrating shafts 21, and is set to such an extent that the tips of the vibrating shafts 21 are in contact with each other, or that there is a slight gap between the tips. Further, recesses 22b are formed in the intermediate portions of the actuation ribs 22a ₁ to 22a ₇ , and vibration shafts 21a to 2
Guide ribs 22 are provided at both ends of the actuating ribs 22a ₁ to 22a ₇ to facilitate the insertion of the actuating ribs 22a 1 to 22a 7.
c is integrally formed. Therefore, when the operating rotary plate 24 is rotated once in either direction, for example in the direction A, the operating ribs 22a ₁ and 22a ₂ first rotate the vibration shafts 21a and 21b to the vibration shafts 21a' and 21.
b', and the vibration shafts 21a', 2 in the recess 22b.
1b' causes narrow and wide vibrations, and releases the vibration shafts 21a and 21b with a predetermined amount of rotation corresponding to the rib length,
Subsequently, the vibration shafts 21c and 21d are sandwiched between the actuation ribs 22a ₃ and 22a ₄ , and the recessed portion _22b is caused to vibrate by the same amount _of rotation as described above, and then these are released. Vibration shaft 21
e and 21f are inserted, vibrated, and released, and the operating rib _22a7 tilts the vibration shaft 21g toward the vibration shaft 21h, which is the center of rotation, and vibrates. Further, after half a rotation of the actuating rotary plate 24, the actuating ribs 22a ₁ to 22a ₇ successively insert the center side vibrating shafts from the outer vibrating shafts 21n and 21o, vibrating and releasing the vibration shafts, and thus the continuous rotation causes the vibrating shaft 21h. All the vibration axes except for the vibration axis will vibrate.

26 is a connecting gear that meshes with teeth formed on the outer periphery of the drive means 25, and is held on the bearing body 23 by a clutch 27 that meshes with the rotating pawl 16, a spring 29, a clutch shaft 28, and an E ring 30, and is connected to the cord reel 10. It's linked. 31 is code reel 1
0 is a power cord that can be wound freely, 32 is a handle, 33 is a wheel, and 34 is an exhaust port.

Next, the operation of this vacuum cleaner will be explained. When the electric blower 2 is operated, air is taken in through the intake port 6, passes through the dust collection filter 17 in the intake passage 6a, and is exhausted from the exhaust port 34 of the cleaner body 1. During this time, the dust inhaled from the intake port 6 is filtered through the dust collection filter 1.
7 and the folds 17 of the dust collection filter 17
Clean air collected on the surface of the vacuum cleaner body 1 is released toward the cleaner body 1, and cleaning is performed in this manner. On the other hand, when removing dust attached to the dust collection filter 17, the electric blower 2 is stopped, the power cord 31 is pulled out, and the cord reel 10 rotates.
The rotation is transmitted to the intermediate gear 14, the clutch gear 15, the rotating pawl 16, the clutch 27, and the connecting gear 26, and the rotation of the connecting gear 26 causes the driving means 25 to
rotates, and the operating rotary plate 24 rotates. This rotation of the operating rotary plate 24 causes the vibration axis 2 of the diaphragm 20 to
1 are successively sandwiched between the actuating ribs 22a ₁ to 22a ₇ in pairs, so the lower ends of the diaphragms 20 swing around the hinges 20a, causing them to expand relative to each other as shown in FIG. Accordingly, the folds 17a of the dust collecting filter 17 are expanded. By repeating this, vibration is generated, and fine dust X such as cotton dust accumulated between the pleats 17a can be easily shaken off. Furthermore, minute vibrations are applied by the recesses 22b that guide the vibration shafts 21a to 21o with the actuation ribs 22a ₁ to 22a ₇ .

Further, the same effect can be obtained when manually turning the dust collecting box 5 to remove dust accumulated therein.

With this configuration, this embodiment has the following effects. That is, (1) By the continuous movement of greatly expanding and contracting the folds 17a of the dust collecting filter 17, fine dust such as cotton dust that has entered the wedge-shaped portion inside can be easily removed; There is no clogging of the dust collection filter, and the dust collection performance can be maintained indefinitely.

(2) Since micro vibrations are added by the recessed portion 22b, the dust removal effect is further improved.

(3) Since no sharp object is used to remove dust that has entered the valleys of the dust filter 17, the durability of the dust filter 17 is greatly improved.

(4) It is not necessary to manually remove the dust that has entered the valleys of the dust collecting filter 17, which is very sanitary.

A second embodiment of the invention is shown in FIG. That is, in this vacuum cleaner dust removal device, the opposing operating ribs 22a ₁ to 22a ₆ of the operating rotary plate 24 form a recess 22b in the intermediate portion of one and a convex portion 22b' in the opposing portion of the other. This is how it was done.
The rest of the structure is the same as that of the first embodiment, and the concave portion 22b and the convex portion 22b' provide minute vibrations as in the first embodiment.

Note that a plurality of convex portions 22b' or concave portions 22b can be provided on one actuation rib.

〔Effect of the invention〕

According to the dust removal device for a vacuum cleaner of the present invention, a vibration shaft is provided on the diaphragm that operates the folds of the dust collection filter, and a plurality of operating ribs are provided on the operating rotary plate, and a concave portion or a convex portion is provided on the operating rib, and the operating rotation is performed. By rotating the plate, the vibration shafts are oscillated pair by pair, vibrating the pleats, making dust removal easier, more efficient, and more sanitary than before, and also improving durability without damaging the dust filter. In addition, the initial dust suction performance can be maintained for a long period of time.
Moreover, the concave or convex portions have the effect of increasing the vibration frequency of the diaphragm and improving the dust removal effect.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a vacuum cleaner to which the first embodiment of the present invention is applied, Fig. 2 is an exploded perspective view of a dust removal device, Fig. 3 is a sectional view of the dust removal device, and Fig. 4 is an operating rotating plate. Figure 5 is a diagram of the operation of the operating rib and the vibration shaft.
FIG. 3 is a bottom view of essential parts of the embodiment. 6a...Intake passage, 8...Dust remover, 10...Cord reel, 17...Dust collection filter, 17a...Fold, 1
7b... recess, 20... diaphragm, 21, 21a-21
o... Vibration shaft, 22, 22a ₁ to 22a ₇ ... Operating rib,
22b...Concave portion, 22b'...Convex portion, 24...Operation rotating plate, 25...Driving means.

Claims (1)

[Claims] 1. A dust collecting filter stretched over the intake passage and bent into a corrugated form to form pleats, the tips of which are inserted into the recesses on the back side of the folds of this dust collecting filter, and a vibration shaft is attached to the rear end. A plurality of protruding diaphragms and a plurality of actuating ribs corresponding to the vibration shafts are provided, each of which guides adjacent ones of the vibration shafts to approach each other, and has a concave portion or a convex portion formed in an intermediate portion. A dust removal device for a vacuum cleaner, further comprising: an operating rotary plate in which the operating ribs are shifted from each other in the rotational direction; and a driving means for rotating the operating rotary plate.