JPS6340535B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a cleaning tool (carpet sweeper) comprising a roller brush having relatively long bristles and a rotating brush body having a group of inclined piles.
This invention is an improvement on the invention disclosed in Japanese Patent Application No. 52072/1983.

The carpet sweeper previously proposed by the applicant uses a roller brush to clean smooth floor surfaces, and in addition to the roller brush, is used to clean non-smooth pile fabric surfaces such as carpets. A rotatable rotary brush body having a group of inclined piles is lowered and used, and the dust removed by the roller brush and the rotary brush body is not separated into a dust collection chamber pivotally supported on the side wall of the container. It was designed to collect dust. As a result, coarse dust on the smooth floor surface is brushed up by the roller brush, and fibrous dust such as lint and loose pet hair on the surface of the non-smooth pile fabric is swept up by the inclined pile group of the rotating brush body. The cooperative dust-removal action of the fixed inclined pile group has made it possible to reliably clean the carpet, and the cleaning effect of the carpet sweeper has been significantly improved.

However, in the carpet sweeper with the above configuration, first of all, the dust collection chamber is pivotally supported on the side wall of the container and cannot be removed from the container, so to dispose of dust, it is necessary to carry the container to the disposal site. ,
Moreover, at that location, the dust collection chamber must be rotated about its axis against the biasing force of the inverted V-shaped elastic pressing member, and the dust collection chamber must be passed through the opening protruding from the lower part of the container body. Second, the coarse dust that is thrown up by the roller brush and the fibrous dust such as lint and pet hair that are scraped off by the cooperative action of the rotating brush body and the fixed brush that slides on it are removed. Since the dust is collected together in the same dust collection chamber, if the coarse dust thrown up by the roller brush falls between the inner wall surface of the container and the outer circumferential surface of the rotating brush body, the rotation It has been found that the movable brush body is prevented from swinging smoothly, making it impossible to achieve a sufficient cleaning effect.

This invention overcomes the above-mentioned deficiencies and improves it by making the dust collection chamber a cassette type that can be attached to and detached from the container body, so that the dust can be disposed of simply by removing the dust collection chamber from the container body and carrying it around. At the same time, the dust collection chamber is separated from the first one by a partition wall.
It is divided into a dust collection chamber and a second dust collection chamber, and the coarse dust and woven dust that are removed by the roller brush and the rotating brush body are divided into the first dust collection chamber and the second dust collection chamber, respectively. A carpet that collects dust and prevents coarse dust from falling between the inner wall surface of the container and the outer circumferential surface of the rotating brush body, thereby ensuring smooth operation of the rotating brush body. The purpose is to provide a sweeper.

The configuration of this invention will be explained based on FIG.

In a carpet sweeper equipped with a roller brush 4 rotated by a drive wheel 2 pivotally supported on a side wall 1a of the container, a rotary brush body 11 having an inclined pile group 14, and a fixed brush 16 in sliding contact with the brush body 11, A cassette-type dust collection chamber 7, which is detachably provided from the dust collection chamber 1, is housed in the container 1 through the upper opening 1c of the container 1, as shown in FIG.
Or by the upper lid 6 pivoted to the vessel side wall 1a,
It is held so as not to separate from the vessel body 1. The dust collection chamber 7 is divided into a first dust collection chamber 7a and a second dust collection chamber 7b by a partition wall 8 provided in the width direction of the container body 1, and the coarse dust that is thrown up by the roller brush 4 and The fibrous dust scraped off by the cooperative action of the inclined pile group 14 of the rotating brush body 11 and the fixed inclined pile group 17 is removed from each first dust collection chamber 7a.
The dust collection chamber 7b is divided into a second dust collection chamber 7b and a second dust collection chamber 7b.

Embodiments of the present invention will be described below with reference to the drawings.

A side wall 1 of the vessel is connected between a pair of drive wheels 2 pivotally supported at the front of the vessel 1 and a rear wheel 3 provided at the rear of the vessel 1.
A roller brush 4 in which comparatively long bristles 5 are closely installed is rotated by a driven wheel 4a which is in contact with a driving wheel 2 pivotally supported by a, and the lower end of the container body 1 is bent inward. A dust collection chamber 7 is provided, which is held by the piece 1e and detachably loaded into the container body 1.
A top lid 6 that can be opened and closed is attached to the top of the dust collection chamber 7, either integrally or separately. The inside of this dust collection chamber 7 is divided into a first dust collection chamber 7a on the roller brush 4 side and a second dust collection chamber 7b on the rear wheel 3 side by a partition wall 8 provided in the width direction. 2. A rotary brush body 11, which is pivotally supported on the side wall 7c of the dust collecting chamber and has an arcuate outer circumferential surface 11a, projects from a widthwise elongated rectangular opening 10 formed in the bottom plate 9 of the second dust collecting chamber 7b. A required number of contacts 12 are provided at an intermediate portion of the outer circumferential surface 11a of the rotary brush body 11 at appropriate intervals in the width direction and protrude outward. This contact 1
The material of 2 has appropriate abrasion resistance and flexibility for the surface to be cleaned, and the rotary brush body 11 is attached to the support shaft 1.
An elastic material, such as rubber, that does not damage surfaces to be cleaned such as floors, tatami mats, and carpets is suitable when the cleaning device is oscillated around point 3.

On the outer circumferential surface 11a of the rotary brush body 11 on the drive wheel 2 side, which is divided into front and rear parts by the contactor 12, there is provided a detachable inclined pile group 14 that lies down inside the second dust collection chamber 7b. The inner wall of the opening of the second dust collection chamber 7b into which the pile holder 15 is fitted and which can come into sliding contact with the inclined pile group 14 is provided with a fixed inclined pile group 17 that lies down in the same direction as the inclined pile group 14. A fixed brush 16 is provided. Although the inclined pile groups 14 and 17 are provided on one side of the contact 12 in FIGS. 1 and 4, they may be provided on both sides of the contact 12, as shown in FIG.

The rear wheel 3 is usually provided one piece at the center of the width direction at the rear of the container body 1, and is controlled by a height adjusting means 26 that slides vertically within a casing 18 formed in the container body 1.
It functions to bring the inclined pile group 14 of the rotating brush body 11 into contact with the non-smooth surface of the pile fabric or to separate it from the surface of the pile fabric. The height adjustment means 2
6 pivots the support shaft 3a of the rear wheel 3 through a shaft hole 20a provided on the inner surface of a gate-shaped sliding member 20 fitted in the housing 18, and the sliding member 20 a spring 19 disposed between the inner surface of the bottom wall of the casing 18;
The switching lever 21 is biased upward by the switch lever 19 and is held at the upper surface of the sliding member 20 by the shaft 22 in the semicircular arc-shaped notch 18a of the housing 18.
It comes into contact with the pressing portion 21b of the holder and prevents it from moving upward. An engagement groove 20b that normally holds the pressing part 21b of the switching lever 21 in the vertical direction is provided on the upper surface of the sliding member 20, which the tip of the pressing part 21b comes into contact with. The operating portion 21a of the switching lever 21 is protruded from the opening 23a of the lid plate 23 to the outside of the container body 1, and is connected to the tapered surfaces 23a, 23 of the opening 23a.
The switching angle of the switching lever 21 is regulated by b. The cover plate 23 is attached to the housing 18 through a notch 18 provided in the upper side wall of the housing 18.
This is done by elastically fitting the engaging piece 23c of the lid plate 23 into the portion b.

Therefore, when the switching lever 21 is rotated counterclockwise as shown in FIG.
Since the pressing portion 21b of 1 contacts the upper surface of the sliding member 20 in a substantially horizontal position, the sliding member 20 is pressed against the spring 19.
is moved upward by the urging force of the pressing portion 21b.
upward movement is prevented by the sides of
In addition to the roller brush 4, a rotating brush body 11 is brought into contact with a surface A to be cleaned, such as a carpet, as shown by the solid line in FIG. When the switching lever 21 is rotated clockwise as shown in FIG. 3b, the sliding member 20 is moved to the lowest position against the urging force of the spring 19 by the pressing portion 21b rotating in the vertical direction. As a result, only the rotary brush body 11 is lifted off the surface B to be cleaned, such as the floor, indicated by the two-dot chain line in FIG.

The upper lid 6 that covers the upper part of the dust collection chamber 7 is pivotally attached to the side wall 7c of the dust collection chamber on the rear wheel 3 side by a shaft 24, and the upper end portions of the rear wall 7d of the dust collection chamber 7 and the partition wall 8 are attached inside thereof. The second dust collecting chamber 7b is not communicated with the first dust collecting chamber 7a and the interior of the container body 1b as shown in FIGS. 1 and 4.
The front wall 7e of the dust collection chamber 7 has a front end locking portion 6c of the upper lid 6 that engages with the inner end 1d of the upper opening 1c of the container body 1.
An opening 25 communicating with the roller brush 4 side is formed between the container body 1 and the coarse dust thrown up by the roller brush 4 along a curved dust guiding plate 28 attached above the roller brush 4 inside the container 1. transport it with
The dust is collected into the first dust collection chamber 7a through the opening 25.

As shown in FIGS. 1 and 2, 27 is a top lid locking member pivotally attached to the top surface of the container 1 on the side of the switching lever 21, and is used to hold the cassette-type dust collection chamber 7 loaded in the container 1. , between the front end locking part 6c of the upper lid 6 and the container body 1.
while engaging the upper opening 1c, and locking the elastic protruding piece 6d at the other end with the upper lid locking member 27,
Hold it so that it does not separate from the container body 1. Dust collection room 7
When discarding the dust collected in the dust collecting chamber 7, rotate the upper lid locking member 27 in the direction of the arrow in FIG.
By slightly lifting the rear part of the container and releasing the engagement between the front end locking part 6c of the upper lid 6 and the upper opening 1c of the container 1, the dust can be easily taken out from the container 1 into the cassette-type dust collection chamber 7. Therefore, the dust can be easily disposed of by simply opening the top cover 6 without getting the hands dirty. Note that the upper lid 6 does not necessarily need to be pivotally attached to the dust collection chamber side wall 7c on the rear wheel 3 side.
a, and the elastic protruding piece 6d at the rear end of the upper lid 6 may be locked by the upper lid locking member 27.

Next, the operation will be explained.

When cleaning the surfaces of pile fabrics for carpets and interiors with a carpet sweeper, by switching the switching lever 21 to the position shown in FIG. rear wheel 3
is moved upward by the biasing force of the spring 19, so the inclined pile group 14 of the rotating brush body 11 is
Comes into contact with the surface A to be cleaned, such as a carpet.

In this state, if the operating handle 29 is pushed to move the body 1 forward in the direction of the solid arrow a with respect to the surface to be cleaned A, the drive wheel 2 will rotate counterclockwise and the driven wheel 4a coaxial with the roller brush 4 will rotate. Since the roller brush 4 rotates in the clockwise direction, the roller brush 4 also rotates in the same direction, and the relatively large coarse dust on the pile surface of the carpet is thrown upward by the bristles 5, and the dust is guided above the roller brush 4. The dust is guided by the plate 28 and collected into the first dust collection chamber 7a through the opening 25.

On the other hand, during the forward movement of the roller brush 4, the semi-cylindrical rotating brush body 11 pivotally mounted in the second dust collection chamber 7b has a plurality of contacts 12 protruding from its outer circumferential surface. While sliding on the second dust collection chamber 7b
The rotary brush body 11 stops rotating when it abuts against the edge 10a of the lower opening 10. However, since the forward motion of the device body 1 continues, the rotating brush body 11
The inclined pile group 14 combs not only the pile surface of the carpet, but also fibrous dust such as dust, lint, loose pet hair, etc. that is entangled in the pile group and left behind by the roller brush 4. The material is scraped between the inclined pile groups 14 as shown in FIG.

Next, when the device body 1 is pulled in the direction of the dotted arrow a' using the operation handle 29, the rotary brush body 11 is moved along the edge 10 of the opening 10 while the contactor 12 is sliding.
It hits point b and stops its rotation. Meanwhile, the various dust that had been scraped up on the inclined pile group 14 during the previous forward movement is thrown down in the same direction when the fixed brush 16, which is inclined in the same direction, slides on the inclined pile group 17. The inclined pile group 1 remains as it is without being scraped by the pile group 17.
It is held within 4. On the other hand, the roller brush 4 rotates in the opposite direction to the direction in which the vessel body 1 was previously advanced.
Coarse dust on the surface A to be cleaned is collected by the bristles 5 into the first dust collecting chamber 7a from the front wall 7e side of the dust collecting chamber 7.

When the container 1 is pushed in the direction indicated by the solid arrow a and moved forward again, the roller brush 4 rotates clockwise to remove relatively coarse dust on the pile surface such as carpet, as explained during the previous forward movement. The dust is collected in the first dust collection chamber 7a. On the other hand, inclined pile group 1
The fibrous dust, etc. that was collected in the inside of the rotary brush body 11 and held in a position facing the fixed inclined pile group 17 is rotated when the rotary brush body 11 is rotated counterclockwise by the action of the contactor 12. The rotary brush body 1 is scraped off by the inclined pile group 17 of the fixed brush 16 that is lying down in the opposite direction to the rotating direction of the movable brush body 11.
1 to the fixed brush 16. As a result, the inclined pile group 14, which has become clean with dust and the like removed, is pulled out between the openings 10 and again scrapes up fibrous dust and the like on the surface A to be cleaned, such as the carpet.

Furthermore, when the container body 1 is pulled once again in the direction of the dotted arrow a', the roller brush 4 rotates counterclockwise and removes coarse dust on the pile surface from the front wall 7.
Dust is collected into the first dust collection chamber 7a through the opening 25 from the e side. On the other hand, the dust that was scraped from the inclined pile group 14 to the fixed inclined pile group 17 during the previous backward movement is removed from the inclined pile group 14 of the rotary brush body 11 which is rotated clockwise about the support shaft 13.
The fibrous dust, etc. that had been scraped up by the inclined pile group 14 of the rotary brush body 11 is pushed out into the second dust collecting chamber 7b from between the fixed inclined pile group 17 as if being combed. As explained last time, since the inclined pile group 17 of the fixed brush 16 is inclined in the same direction as the inclined pile group 14 of the rotating brush body 11, the inclined pile group 1 is not scraped off.
It is retained as is in 4.

By repeating the above forward and backward movements, relatively coarse dust on the pile surface such as carpet can be removed.
The roller brush 4 sweeps up into the first dust collecting chamber 7a during the reciprocating movement, but lint, pet hair, and other fibrous dust are thrown up by the tilting of the rotary brush body 11 during the first forward movement. The dust is collected by the pile group 14, but since the inclined pile group 17 of the fixed brush 16 is in the same falling direction during the first backward movement, the dust between the inclined pile groups 14 remains as it is. Inclined pile group 1 during the second forward movement
4 opens the opening 1 while sliding on the fixed inclined pile group 17.
Since we are moving towards 0, we start with inclined pile group 14.
The dust held in the fixed inclined pile group 17
The inclined pile group 14, which has become clean as it is scraped off by the dirt, continues to scrape up new dust again. Next, when moving to the second backward movement, the inclined pile group 14 slides on the fixed inclined pile group 17 and moves forward as if combing away the dust that was previously scraped off the inclined pile group 17. Although the slanted pile group 14 is pushed out and finally pushed out into the second dust collection chamber 7b,
The newly collected dust will be retained as before.

That is, when cleaning fibrous dust such as carpet, the fixed inclined pile group 17 first scrapes the dust collected by the inclined pile group 14 of the rotating brush body 11, as detailed above. take,
Next, the inclined pile group 14 pushes the dust forward with its bristles and pushes it out into the second dust collecting chamber 7b, thereby completing the cleaning action.

When using the carpet sweeper of the present invention to clean smooth surfaces such as tatami mats and floors, the switching lever 21 is switched to the position shown in FIG. 3b, and the rear wheel 3 is moved along line B in FIG. If you push it down to the position shown,
Since the roller brush 4 near the drive wheel 2 contacts the surface to be cleaned at the same position as when cleaning a carpet, etc., the cleaning effect is not different at all. However, since the rotating brush body 11 is in a position raised above the surface to be cleaned, there is no need for the floor or tatami mats to be damaged by the contacts 12, and the action of the roller brush 4 described above eliminates the possibility of damaging the floor or tatami mats. Dust on the surface to be cleaned can be collected in the first dust collection chamber 7a.

Note that the above operation is explained for the case where the inclined pile group 14 is provided on one side of the contactor 12 in the rotating brush body 11.
Dust collection chamber 7A of another embodiment in which inclined pile groups 14 and 17 of fixed brushes 16 are provided on both sides of contactor 12
(See Fig. 5), in any direction of the forward and backward movement of the container body 1, the fibrous dust etc. left without being cleaned by the bristles 5 of the roller brush 4 can be removed. The dust can be scraped off alternately and finally pushed out and stored in the dust collection chamber 7A.

As explained above, this invention has a removable cassette-type dust collection chamber installed in the container body, and a partition wall inside the dust collection chamber to collect relatively coarse dust, lint, pet hair, etc. Since the dust is collected separately from fibrous dust, it is possible to conveniently dispose of dust by removing only the cassette-type dust collection chamber without having to carry the container. This prevents coarse dust thrown up by the roller brush from falling between the inner wall surface of the rotary brush body and the outer peripheral surface of the rotary brush body, and maintains smooth operation of the rotary brush body for a long period of time. be able to.

In the original invention patent No. 1177275 (Special Publication No. 58-3692), the dust collection chamber housed in the container of the carpet sweeper is not only pivotally supported on the side wall of the container, but also is lifted up by a roller brush. Coarse dust and fibrous dust scraped up by a rotating brush body were collected together, but in this invention, the dust collection chamber is a cassette type that can be attached to and detached from the container body, and A partition wall has been installed in the dust collection chamber to separate coarse dust and fibrous dust for collection, making dust disposal much more convenient and facilitating smooth operation of the rotating brush body. It has the advantage of being able to maintain its durability for a long time.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of one embodiment of the present invention;
The figure is an exploded slope view of the rear wheel height adjustment means, and Figure 3 is a cross-sectional view of Figure 1. (a) is when the surface to be cleaned is non-smooth such as a carpet, (b) is when the surface to be cleaned is a floor or the like. Indicates a smooth surface such as tatami. FIG. 4 is an exploded perspective view when the dust in the dust collection chamber is disposed of, and FIG. 5 is a sectional view of a main part showing another embodiment of the dust collection chamber. 1... Container body, 1a... Container body side wall, 2... Drive wheel, 3... Rear wheel, 4... Roller brush, 6... Top lid, 7, 7A... Dust collection chamber, 7a... First dust collection room,
7b...Second dust collection chamber, 7c...Dust collection chamber side wall, 8...
... Partition wall, 9 ... Bottom plate, 10 ... Opening, 11 ... Rotating brush body, 11a ... Outer peripheral surface, 12 ... Contactor, 14, 17 ... Inclined pile group, 16 ... Fixed brush, 26 ... ... Height adjustment means (18 ... casing,
19...Spring, 20...Sliding member, 21...Switching lever, 23...Lid plate), 27...Top lid locking member.

Claims (1)

[Scope of Claims] 1. A pair of drive wheels and at least one rear wheel are rotatably provided at both ends of the vessel body in the longitudinal direction, and a pair of drive wheels and at least one rear wheel are provided on the inside of the vessel body on the rear side of the drive wheels. A roller brush rotated by a drive wheel is disposed below the convex dust guide plate, and a roller brush rotated by a drive wheel is provided inside the body having an opening at the bottom between the roller brush and the rear wheel. A removable dust collection chamber that can be put in and taken out from the opening is housed, and the dust collection chamber includes a first dust collection chamber that opens toward the roller brush side by a partition wall, and a second dust collection chamber that is separated from the first dust collection chamber. The second dust collection chamber has a rectangular opening formed in the bottom wall corresponding to the opening at the bottom of the container body, and a semi-cylindrical circumference is formed from the rectangular opening into the second dust collection chamber. A rotating brush body with a part of its surface exposed is rotatably held, and the rotating brush body has a second dust collection chamber attached to one or both of the contacts protruding downward from the outer peripheral surface. A group of inclined piles that lie down toward the inside of the opening are provided, and the second dust collection chamber is located on one or both sides of the inner wall of the opening.
Another inclined pile group is provided which lies down in the same direction as the corresponding inclined pile group of the rotating brush body, and the rear wheel is slidable in the height direction of the vessel body by a switching means projecting from the upper part of the vessel body. The dust collection chamber, which is movably held and housed in the container body, is locked by an upper lid pivotally connected to the dust collection chamber or the container body so as not to be separated from the container body. Petsweeper.