JPS5841902Y2 - vacuum cleaner - Google Patents

Description

[Detailed description of the invention] This invention relates to a vacuum cleaner in which a fine filter and a coarse filter are each provided with a dust removal device. is driven by a drive device installed on the other side of the fine filter via a dust removal device for the fine filter, thereby making it possible to remove dust from the fine filter and the coarse filter at the same time. The company is trying to provide vacuum cleaners.

Figures 1 to 7 show examples embodying this idea below.
The details will be explained with reference to the drawings.

In the figure, 1 is a vacuum cleaner frame, which includes a main frame 2 and a dust container 3 separably connected to the front of the main frame 2.
It is composed of.

The main frame 2 is divided into two parts on the left and right, and
The dust container 3 is open to the main frame 2 side.

4 is a first partition for dividing the inside of the main frame 2 into an electric blower chamber 5 and a cord winding chamber 6 above the electric blower chamber 5; 7 extends downward from the first partition 4; The second partition has a lower end spaced apart from the bottom surface of the main frame 2, and defines a silencing chamber 8 at the rear of the electric blower chamber 5.

Reference numeral 9 denotes an electric blower elastically supported within the electric blower chamber 5, and has an intake port 9a on the front side and an exhaust port 9b on the rear side.

Reference numeral 10 denotes a communication port that opens on the front surface of the main frame 2, and communicates with the intake port 9a of the electric blower 9.

Reference numeral 11 indicates a cylindrical sound-absorbing cylinder having air permeability fixed to the electric blower 9 so as to cover the exhaust port 9b thereof, and reference numeral 12 indicates the lower surface of the first partition 4, the second partition 7, and the main frame. Sound-absorbing materials 2 and 13 are attached to the inner bottom surfaces of the sound-absorbing chamber 8, respectively, and an exhaust cover 13 is removably attached to the rear opening of the silencing chamber 8, and is provided with an exhaust port 13a consisting of a large number of small holes. .

Reference numeral 14 denotes an air exhaust passage for communicating the electric blower chamber 5 and the silencing chamber 8, which runs along the bottom surface of the main frame 2 and between the tip of the second partition 7 and the bottom surface of the main frame 2. extends through the space of

A cord winding device 15 is installed in the cord winding chamber 6, and is fixed between the first partition 4 and the main frame 2 so that its rotating shaft 15a is vertical.

The cord winding device 15 is urged to rotate in one direction by a mainspring spring (not shown), and a braking device (not shown) is provided to brake the cord winding device against the action of the main spring spring. (not shown).

Reference numeral 16 denotes a cord outlet provided in the rear surface of the main frame 2, through which the cord wound and stored in the cord winding device 15 can be pulled out.

17 is a recess opening in the front surface of the main frame 2; 18;
is a rotary shaft supported rotatably about a substantially horizontal axis by a first bearing 19 and a second bearing 20 disposed at a distance in front of it, and its front end is connected to the main frame 2. It passes through the front surface and projects into the recess 17.

21 is an annular first gear formed on the upper surface of the cord winding device 15, and 22 is a second gear fixed to the rotating shaft 18, which can mesh with the first gear 21.

A claw clutch 23 is attached to the front end of the rotary shaft 18 so as to be slidable and rotatable integrally with the rotary shaft 18, and a coil spring 24 stretched between it and the second bearing 20. It is energized forward by.

Reference numeral 25 denotes an inlet hole drilled in the front surface of the dustbin 3, and 26 denotes a coarse filter frame made of synthetic resin disposed approximately horizontally within the dustbin 3, the central portion of which has an upwardly raised cross section. It has a bat-like shape, and therefore, stepped portions 26a are formed on both left and right sides of the center portion of the coarse filter frame.

Reference numeral 27 denotes a coarse filter stretched over the vertical portion and the central horizontal portion of the coarse filter frame, and the coarse filter stretched over the central horizontal portion is divided into four sections by the coarse filter frame 26.

Reference numeral 28 denotes a cylindrical fine filter disposed above the coarse filter frame 26 in the garbage container 3, and has a substantially chrysanthemum-shaped cross section.

The fine filter 28 is formed by folding a substantially rectangular flat plate filter material made of filter paper or the like into a pleat shape and rolling it into a substantially C shape so that both ends of the filter material face each other with a gap between them. , is arranged in the garbage container 3 so that its axis is vertical.

Reference numeral 29 denotes a filter frame made of synthetic resin that is integrally molded on both upper and lower ends of the fine filter 28 and both ends of the filter medium, and the lower end opening of the fine filter 28 is closed by the lower filter frame 29. .

An upper filter frame 29 fixed to the upper end of the fine filter 28 extends substantially horizontally from the outer periphery of the fine filter 28 toward the inner wall of the garbage container 3, and the fine filter 28
is fixed inside the dustbin 3 via the upper filter frame 29.

An upright wall portion 29a is integrally formed at the rear end portion of the upper filter frame 29, and stands upright above the rear end portion.
This upright wall portion 29a can close the opening of the dustbin 3 above the upper filter frame 29. Therefore, the upper end opening 28a of the fine filter 28 is connected to the upper filter frame 29, the upright wall portion 29a and the garbage container 3.

A communication port 30 is defined by the fill frame 29 and communicates with the inside of the fine filter 28, and is opened at the rear surface of the garbage container 3, and when the main frame 2 and the garbage container 3 are connected, the main frame Therefore, the coarse filter 27 and the fine filter 28 are connected from the suction port 25 to the communication port 10 on the second side.
, a dust suction air passage passing through the communication port 30 and the communication port 10 and reaching the electric blower 9 is formed.

31 is a mounting plate screwed onto a boss projecting upward from the upper surface of the upper filter frame 29; 32 is a mounting plate for the fine filter 28 supported between the mounting plate 31 and the lower filter frame 29; The dust removal device 33 is the dust removal device 32.
The fine filter 28 is rotatably supported by the mounting plate 31 and the lower filter frame 29 about the axis of the fine filter 28 .

34 is a flange portion protruding from the middle portion of the shaft 33;
Reference numeral 35 denotes a portion 2 projecting upward from the upper surface of the flange portion 34.
The protrusions 36 are elastic flat dust removers whose base ends are wound around one of the two protrusions 35, and are bent approximately at right angles at their intermediate portions, and whose tips end at the fine filters 28. It invades between the folds.

The intermediate portion of the dust remover 36 extends between the shaft 33 and the other protrusion 35, so that the shaft 33
When rotated clockwise in the figure, the bent part of the dust remover 36 comes into contact with the other protrusion 35, and the tip of the dust remover 36 penetrates relatively deeply between the folds of the fine filter 28, and the shaft 3
3 rotates counterclockwise, the dust remover 36 rotates clockwise around one protrusion 35 and comes into contact with the shaft 33, and the tip of the dust remover 36 is relatively shallow and closes to the fine filter 28.
The torque required to penetrate between the folds of the shaft 33 and eventually rotate the shaft 33 clockwise is greater than the torque required to rotate the shaft 33 counterclockwise.

Regardless of whether the shaft 33 is rotated clockwise or counterclockwise, as the shaft 33 rotates, the dust remover 36 successively flicks the top of each fold of the fine filter 28, and the fine filter 2
8 falls onto the coarse filter frame 26, and since the fine filter 28 is arranged so that its axis is perpendicular, the fine filter 28 falls onto the coarse filter frame 26.
This is convenient because all of the dust that has been brushed off from 8 falls downward.

37 is a third gear fixed to the upper end of the shaft 33; 38
is an internal gear rotatably supported by the mounting plate 31, and can mesh with the third gear.

39 is an annular fourth gear formed on the upper surface of the internal gear 38; 40 is a pawl clutch rotatably supported by the upright wall 29a of the filter frame 29; When the container 3 is connected, the main frame 2
It can be engaged with the pawl clutch 23 on the side.

A fifth gear 41 is fixed to the inner end of the pawl clutch 40 and can mesh with the fourth gear 39.

Note that the rotating shaft 18, the first gear 21° and the second gear 22
, pawl clutches 23, 40, third gear 37, internal gear 3
8, a fourth gear 39, a fifth gear 41, and the like constitute a transmission device P.

Reference numeral 42 denotes four rib members extending from the four corners of the raised top of the coarse filter frame 26 toward the center along the lower surface of each of the four divided coarse filters 27;
Reference numeral 3 denotes four protrusions that respectively protrude upward from the tip of each rib member 42 through the coarse filter 27, and are located on the same circumference centered on the shaft 33.

The rib member 42 and the protrusion 43 are connected to the coarse filter frame 2.
It is molded integrally with 6.

As shown in FIGS. 5 and 6, the coarse filter 27 is stretched over the coarse filter frame 26 so that the upper surface of the coarse filter 27 and the upper surface of the coarse filter frame 26 are aligned, and therefore the rib member Bottom surface of 42 and coarse filter frame 2
6 are located on the same plane.

Incidentally, since the upper surface of the coarse filter 27 and the upper surface of the coarse filter frame 26 substantially coincide with each other, this is convenient when dust on the coarse filter 27 is removed by a wiping member 45, which will be described later.

44 is a rotating member fixed to the lower end of the shaft 33;
It has a repelling portion 44a and a mounting arm portion 44b extending substantially horizontally from the upper surface of the coarse filter frame 26 at an interval.

The repelling portion 44a has elasticity and can be engaged with the four protrusions 43, and the repelling portion 44a has elasticity.
4a constitutes a dust removal device for the coarse filter 27.

Reference numeral 45 denotes an elastic wiping member whose upper end is fixed to the mounting arm 44b of the rotating member 44, and whose lower end contacts the upper surface of the coarse filter 27 stretched over the center portion of the coarse filter frame 26. ing.

The wiping member 45 is made of film-like rubber or soft synthetic resin material, and a notch 46 is formed at the lower end of the wiping member 45, through which the protrusion 43 can pass when the rotating member 44 rotates. ing.

Reference numeral 47 denotes a lid that opens and closes the opening of the dust container 3, and when the lid 47 is removed from the opening of the dust container 3,
The inside of the dust container 3 below the fine filter 28 is opened to the outside.

In the device configured as described above, when the electric blower 9 is now driven, air flows from the suction port 25 to the coarse filter 2.
After passing through 7, the air passes through a fine filter 28 from the outside to the inside, and then is sucked through the communication port 30.10, and coarse particles among the dust contained in the air are passed through the coarse filter 27. The fine particles are filtered by a fine filter 28 and collected in the dust container 3.

The air sucked into the electric blower 9 is discharged from its exhaust port 9b, passes through the sound absorbing tube 11, and then enters the air exhaust passage 1.
4 and silencing chamber 8, and is dispersed and discharged to the outside from the exhaust port 13a of the exhaust cover 13.

When the electric blower 9 is operated, the noise generated in the electric blower 9 portion is blocked by the cord winding device 15 installed in the cord winding chamber 6, and the noise leaking outside the vacuum cleaner frame 1 is reduced.

Further, since the exhaust airflow of the electric blower 9 flows through the air exhaust passage 14 provided along the bottom of the main frame 2, the noise contained in the exhaust airflow does not reach the ears of the worker. <<, Overall, the noise during operation of the vacuum cleaner is reduced.

When the cord is pulled out from the cord outlet 16, the cord winding device 15 rotates, and the rotation of the cord winding device 15 rotates.
First gear 21 of transmission device P. It is transmitted to the shaft 33 through the second gear 22, the rotating shaft 18, the pawl clutch 23.40, the fifth gear 41, the fourth gear 39, the internal gear 38 and the third gear 37, and the shaft 33 Rotate.

As the shaft 33 rotates, the dust removal device 32 removes dust from the fine filter 28 .

When pulling out the cord, the shaft 33 rotates clockwise in FIG. 3.

When the shaft 33 rotates clockwise, the dust remover 36 penetrates relatively deeply between the folds of the fine filter 28, so that the fine filter 28 is vibrated relatively strongly.

Further, as the shaft 33 rotates, the rotating member 44 rotates, and the four protrusions 43 are sequentially repelled by the repelling portion 44a of the rotating member 44, thereby causing the coarse filter 27 to vibrate and become attached to the coarse filter 27. At the same time, the dust removed from the fine filter 28 by the dust removal device 32 and deposited on the center portion of the coarse filter frame 26 is removed by the wiping member 45 from the stepped portion 26 of the coarse filter frame 26.
It is brushed off onto a.

At this time, since the protrusion 43 is integrally formed to protrude from the tip of the rib member 42 extending along the lower surface of the coarse filter 27, when the protrusion 43 is repelled by the repelling portion 44a of the rotating member 44, the rib member 42 The coarse filter 27 vibrates more violently due to its elasticity, and the vibration is well transmitted to the entire coarse filter 27, so that dust adhering to the coarse filter 27 can be efficiently removed.

Furthermore, since the wiping member 45 is formed with a notch 46,
When the rotating member 44 rotates, the protrusion 43 passes through the notch 46, and the protrusion 43 does not become an obstacle to the wiping member 45, which is convenient.

Furthermore, as shown in FIG. 6, since the outer diameter A of the recessed portion of the fine filter 28 is set approximately equal to the width B of the central protrusion of the coarse filter frame 26, the fine filter 28
The dust brushed off from the coarse filter 2 near the shaft 33
The coarse filter 27 does not fall onto the shaft 33 and is separated from the shaft 33.
The dust that has fallen upward is quickly wiped off onto the stepped portion 26 a of the coarse filter frame 26 by the wiping member 45 .

When the braking device is released, the cord winding device 15 rotates under the action of a mainspring spring, and the cord that has been drawn out of the vacuum cleaner frame 1 is wound and stored on the cord winding device 15.

At this time, as the cord winding device 15 rotates, the shaft 33 rotates counterclockwise in FIG. 3, and as the shaft 33 rotates, the dust removal device 32 removes dust from the fine filter 28.

When the shaft 33 rotates counterclockwise, the dust remover 36 penetrates relatively shallowly between the folds of the fine filter 28.
The vibration of the fine filter 28 is weaker than when the shaft 33 rotates clockwise.

Further, as the shaft 33 rotates, the rotating member 44 rotates, and the protrusion 43 is repelled by the repelling portion 44a to remove dust from the coarse filter 27. At the same time, the dust accumulated on the coarse filter 27 is removed by the wiping member 45. It is brushed off onto the stepped portion 26a of the filter frame 26.

In this embodiment, the cord is wound in the cord winding device 1.
5, the shaft 33 rotates counterclockwise in FIG.
2, all the cords can be smoothly wound and stored on the cord winding device 15.

Other embodiments are shown in FIGS. 8 and 9.

In the embodiment shown in FIG. 8, a rotary member 44 is rotatably attached to the coarse filter frame 26, and a rotary member 44 is rotatably attached to the lower end of the shaft 33.
A locking protrusion 51 is provided that can lock with a protrusion 50 that projects upward from the middle portion of the repelling portion 441 of the rotating member 44.

In the embodiment described above, the rotating member 4 is attached to the lower end of the shaft 33.
4 is fixed, it is necessary to keep the spacing between the coarse filter 27 and the fine filter 28 constant at all times for manufacturing purposes, but in this embodiment, some error is allowed.

In the embodiment shown in FIG. 9, a protrusion 43 is formed in the center of the coarse filter 27 in the form of an island.

In any of the embodiments described above, the fine filter 28
The problem is the positional relationship between the dust remover 36 and the wiping member 45, which constitutes the dust remover 32. Ideally, the dust removed by the dust remover 36 from the fine filter 28 and dropped onto the coarse filter 27 should be removed. It is desirable that the wiping member 45 be positioned somewhat later than the dust remover 36 in the rotational direction of the shaft 33 so that the wiping member 45 can immediately wipe away the dust.

However, in each of the embodiments described above, since the shaft 33 rotates in both directions, the dust remover 36 and the wiping member 45 rotate through 180 degrees.
It is located off-center.

In the embodiment shown in FIG. 8, since the rotating member 44 is provided on the coarse filter frame 26, the engaging protrusion 51 is made to protrude in the same direction as the dust remover 36, and the repelling portion 44a side of the rotating member 44 is By protruding the protrusion 50,
The dust remover 36 and the wiping member 45 are designed so that they always move 180 degrees apart.

As detailed above, in this invention, the cylindrical fine filter is arranged so that its axis is perpendicular, so that the dust released from the fine filter by the dust removal device smoothly falls downward, preventing clogging of the fine filter. It can be completely eliminated.

In addition, an electric blower is placed on the lower side of the main frame, and a cord winding device is placed on the upper side.A coarse filter is placed on the lower side of the dust container, and a fine filter is placed on the upper side. The transmission device for transmitting the rotation of It is easy to simplify the structure of the device, and the transmission device is placed above the main frame and inside the dust container, so that dust does not adhere to the transmission device even during long-term use, and the transmission device can always be operated smoothly. is activated, and the rotation of the cord winding device can be efficiently transmitted to the dust removal device.
Particularly, when the dust removal device is driven when the cord is stored in the cord winding device, the cord can be stored smoothly due to the action of the mainspring spring, which is very effective.

In addition, since the coarse filter dust remover is connected to the transmission device via the coarse filter dust remover, there is no need for a special mechanism to connect the coarse filter dust remover and the transmission device. Since the dust removal device for the coarse filter and the dust removal device for the coarse filter are simultaneously driven by the cord winding device, clogging of both filters can be quickly cleared, and many practical effects are achieved.

[Brief explanation of the drawing]

Figure 1 is a side sectional view of the vacuum cleaner of this invention, Figure 2 is a sectional view taken along line 2-2 in Figure 1, Figure 3 is a sectional view taken along line 3-3 in Figure 1, and Figure 4 is a sectional view taken along line 3-3 in Figure 1. 1 is a sectional view taken along line 4-4, FIG. 5 is an enlarged sectional view taken along line 5-5 in FIG. 4, FIG. 6 is a sectional view taken along line 6-6 in FIG. -7 line sectional view, Figures 8 and 9 are drawings showing other embodiments, Figure 8 is a side sectional view of the main part of the dust container showing only the vicinity of the coarse filter and fine filter, and Figure 9 is FIG. 3 is a cross-sectional view of the coarse filter near the protrusion. In the figure, 2 is the main frame, 3 is a dust container, 9 is an electric blower, 15 is a cord winding device, 27 is a coarse filter,
28 is a fine filter, 32 is a dust removal device, 43 and 44 are protrusions and rotating members constituting the dust removal device for the coarse filter, and P is a transmission device.

Claims (1)

[Scope of utility model registration request] An electric blower is placed within the main frame, and a cord winding device is placed above it, and a cylindrical fine filter is placed in a dustbin that is separably connected to the main frame so that its axis is perpendicular. A coarse filter is arranged below the fine filter, a dust removing device having a vertically extending shaft is installed in the fine filter, a dust removing device is installed in the coarse filter, and the dust removing device is installed in the fine filter. a transmission device operatively connected to the lower end of the shaft for transmitting rotation of the cord winding device to both dust removal devices;
disposed in the space between the upper inner surface of the main frame and the cord winding device and the space between the upper inner surface of the dust container and the fine filter, and actuates the transmission device and the upper end of the shaft. A vacuum cleaner characterized by being connected to each other.