JPS6345234Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention consists of a fan that is rotated by suction air and a transmission mechanism that uses the rotational force of this fan in a case in which a suction pipe is rotatably attached. This invention relates to a suction port body for a vacuum cleaner, which has a built-in rotating brush that is rotated by a vacuum cleaner.

[Conventional technology]

The first conventional example of this type of vacuum cleaner suction port body is
As shown in FIG. In the figure, 1 is a housing having a suction port 2 at the front of the lower surface, 3 is a suction pipe attached to the rear of the housing 1 so as to be rotatable in the direction of the arrow in Figure 3;
4 is a rotating brush provided along the left and right direction, 5
is also a fan provided along the left and right direction, 6
7 is a transmission mechanism that connects the shafts of the rotating brush 4 and the fan 5; 7 is an opening that throttles the intake air and guides it to the fan 5;
8 and 9 are front and rear wheels, respectively, and 10 is a fixed brush.

This suction port body is used by fitting the suction pipe 3 into an extension pipe of a vacuum cleaner, a flexible hose pipe, or the like. During use, suction air passes from the suction port 2 through the opening 7, passes through the fan 5, and is sucked into the vacuum cleaner from the suction pipe 3, so the fan 5 is rotated by the strong air current. Ru. Therefore, the rotary brush 4 is rotated via the transmission mechanism 6, and suction can be performed while sweeping up the fluff of the cloth with the rotary brush 4.

In addition, as shown in Japanese Utility Model Application Publication No. 54-24268, for example, a pair of rotating brushes are housed in a brush case (housing) along the left and right direction, and It is known that a rotating fan is built in along the left and right direction, and the rotational force of this fan is used to rotate the pair of rotating brushes in opposite directions to sweep up dirt while sucking it in. .

[The problem that the idea attempts to solve]

However, the conventional suction port body has a structure in which the rotating brush and the fan are provided along the left-right direction of the suction port body, so the width is large and the overall shape is flat and bulky. Due to this shape, a large space is required for storage, and handling in confined spaces is troublesome.

Therefore, the present invention does not require a large space for storage, is easy to handle in confined spaces, and also improves cleaning efficiency and ease of cleaning and operability when placed near a wall. It is an object of the present invention to provide a suction port body for a vacuum cleaner that can be realized.

[Means to solve the problem]

In order to achieve the above object, the suction port body of the vacuum cleaner according to the present invention has a suction pipe 19 which is rotatably attached to the housing 11 and into which the flexible hose proximal pipe, extension pipe, etc. of the vacuum cleaner are attached and detached. A rotating shaft portion 20, a shaft 25 of a fan 24 built in the casing 11 and rotated by intake air, and a transmission mechanism 26 built in the casing 11 and driven by the rotational force of the fan 24.
The shafts 23 of the rotating brushes 22 rotated through the brushes 22 and 22 are displaced from each other in a direction substantially perpendicular to the surface to be cleaned, and are arranged along the front-rear direction so as to be substantially parallel to the surface to be cleaned. And the suction pipe 19
The inlet 20a of the rotating shaft portion 20 is arranged on the rear side of the fan 24, and the opening 31 provided in the housing 11 to narrow and guide the air sucked into the fan 24 is arranged on the front side of the fan 24. It will be placed in Further, the transmission mechanism 2 connects the shaft 25 of the fan 24 and the rotating brush 22.
6 is the housing 11 from which the suction pipe 19 is protruded;
It is placed closer to the user's hand.

[Function] As described above, the shaft 23 of the rotating brush 22, the shaft 25 of the fan 24, and the rotating shaft portion 20 of the suction pipe 19 are shifted from each other in the substantially perpendicular direction with respect to the surface to be cleaned, and By arranging the housing 11 in the front-rear direction so as to be approximately parallel to the cleaning surface, the housing 11 can have a small width and an elongated overall shape, making it compact and easy to handle in confined spaces. Become. Due to the positional relationship between the inlet 20a of the rotating shaft portion 20 of the suction pipe 19 and the opening 31 of the housing 11 with respect to the fan 24, the suction air passes through the fan 24 diagonally and rotates the fan 24.
The rotational efficiency of the fan 24 and the rotating brush 22 interlocked with the fan 24 via the transmission mechanism 26 can be improved.
Furthermore, by arranging the transmission mechanism 26, the distance l between the front end of the housing 11 and the front end of the suction port 17 can be shortened, and the center of gravity of the housing 11 can be brought closer to the user's hand to improve balance during use.

〔Example〕

A first embodiment of the present invention will be described below with reference to FIGS. 4 to 7.

In the figure, reference numeral 11 denotes a housing, which is formed by connecting a pair of left and right housing members 12, 12 made of synthetic resin. These housing members 12 are connected by a plurality of pawl receiving parts 13 provided on the mating edge of one housing member 12 and a plurality of locking pawls 14 provided on the mating edge of the other housing member 12. This is done by engaging the connecting frame 15 and fitting the connecting frame 15 into the lower edge annular wall 16 of the housing members 12, 12. Note that the housing members 12, 12 may be connected using screws. A suction port 17 is formed on the lower surface of the casing 11, and fixed brush bristles 18 are protruded from the connection frame 15 surrounding the suction port 17.

A suction pipe 19 is rotatably attached to the upper part of the housing 11. That is, the suction pipe 19 has a rotating shaft portion 20, and the shaft portion 20 is rotatably sandwiched between the upper portions of the housing members 12, 12. The rotating shaft portion 20 is disposed approximately parallel to the surface to be cleaned along the front-rear direction.
Note that in this specification, "substantially parallel" includes not only the case of being parallel to the surface to be cleaned, but also the state of being arranged at a slight inclination. A flexible hose proximal pipe, an extension pipe, etc. of a vacuum cleaner are attached to and removed from a portion of the suction pipe 19 that protrudes from the housing 11.

Bearings 21, 21 are fixed to the lower part of the housing 11 facing each other, and these bearings 21, 2
1 rotatably supports a shaft 23 of a rotating brush 22. The rotating brush 22 is arranged exactly opposite the suction port 17, and has brush bristles 22a on the circumferential surface.
For example, they are planted in a spiral pattern. Note that, if necessary, a protrusion may be spirally provided on the circumferential surface of the brush 22 to hit the surface to be cleaned. Since the bearings 21, 21 are specially attached to the front and rear of the housing 11, the shaft 23 of the rotary brush 22 is arranged along the front-rear direction so as to be substantially parallel to the surface to be cleaned.

Furthermore, a fan 24 is provided in the middle of the housing 11 between the suction pipe 19 and the rotating brush 22. A shaft 25 supporting the fan 24 is disposed approximately parallel to the surface to be cleaned along the front-rear direction. In addition, numeral 32 in FIG. 5 is a shaft support device that rotatably supports the shaft 25, and this is arranged on the lower side of the rotating shaft portion 20, that is, on the proximal side of the casing 11 from which the suction pipe 19 is protruded. It is set up. The rotating shaft portion 20 is located above the rear side of the fan 24.
An entrance 20a is located there.

The shaft 25 of the fan 24 and the brush 22 are connected via a transmission mechanism 26. The transmission mechanism 26 is disposed near the housing 11 from which the suction pipe 19 is protruded, and includes a drive pulley 27 fixed to the rear end of the shaft 25 and a drive pulley 27 fixed to the rear end of the rotating brush 22. Driven pulley 28 and these pulleys 2
Timing belt 2 wrapped around 7 and 28
It is formed from 9. However, in the present invention, the transmission mechanism 26 may have a structure using gears, a chain, a sprocket, or the like.

The housing 11 also includes a rotating brush 22 and a fan 24.
This partition wall 30 is provided with an opening 31 located on the front side of the fan 24, that is, on the opposite side from the suction pipe 19. The opening 31 is for narrowing and guiding the intake air to the fan 24, and its area is small.

In the suction port body described above, the shaft 23 of the rotating brush 22, the shaft 25 of the fan 24, and the rotating shaft portion 20 of the suction pipe 19 are shifted from each other in a substantially perpendicular direction with respect to the surface to be cleaned, and It is a structure arranged along the front-rear direction so as to be approximately parallel to the surface to be cleaned.
For this reason, the suction port body has an overall vertically elongated shape with a width between them. Therefore, this suction port body is smaller than the conventional one, so
The storage space and the place for placing it need only be small, making it convenient for storage. This miniaturization makes it easier to handle in pinched areas, and it also makes it possible to clean pinched areas, which was impossible with conventional suction ports, so it has great practical effects.

Moreover, while positioning the inlet 20a of the rotating shaft portion 20 of the suction pipe 19 at the rear end of the fan 24,
Since the opening 31 is located on the front side of the fan 24, the intake air passes through the fan 24 as shown by the arrow in FIG. 5 during use. That is, since the suction air passes diagonally through the fan 24, it is blown against the substantially full width of the fan 24, thereby imparting a rotational force to the fan 24. Therefore, the rotational efficiency of the fan 24 can be improved, and the rotational efficiency of the rotating brush 22 can also be improved accordingly, so that the fluff of the carpet can be swept up better, and the cleaning efficiency can be improved.

Then, the transmission mechanism 26 and the shaft support device 32 are
Because it is arranged below the rotating shaft part 20, that is, closer to the proximal side of the housing 11 from which the suction pipe 19 is protruded,
Since the driven pulley 28 does not need to be arranged inside the front end of the housing 11, the dimension l between the front end of the housing 11 and the front edge of the suction port 17 can be reduced. For this reason,
Since the suction performance from the front end of the suction port body can be improved, when the front end of the suction port body is attached to a wall or the like, it is possible to thoroughly clean the front end of the suction port body. Note that an air passage consisting of a recessed groove having a dimension l may be provided on the lower surface of the front end of the suction port body, if necessary, and it goes without saying that in this case, the cleaning performance near walls and the like can be further improved. Furthermore, according to the above-described arrangement of the transmission mechanism 26 and the pivot device 32, the center of gravity is formed on the proximal side of the housing 11, so that the balance during use is improved and the operation is easier.

Next, a second embodiment of the present invention will be explained with reference to FIG.

This second embodiment is the same as the first embodiment except for the following points, so the same parts as in the first embodiment are denoted by the same reference numerals, and the explanation thereof will be omitted. The difference from the first embodiment is that the bearings 21, 21 are not fixed but are provided so as to be movable up and down, and the bearings 21, 21 are always urged by a spring 33 in the direction of the surface to be cleaned.

Therefore, the second embodiment has the same functions and effects as the first embodiment, and also has the same effects as the first embodiment.
Other drawbacks of the conventional suction port body illustrated in the figure can be eliminated. Another drawback of the conventional example is that the rotating brush 4
The distance between the tip of the brush bristles and the surface to be cleaned is
Therefore, when the surface to be cleaned is uneven like a carpet, the rotation of the rotating brush 4 is not hindered in the concave parts and rotates faster, and the brush bristles press strongly in the convex parts. This prevents the rotation of the rotating brush 4, and the rotation of the rotating brush 4 is significantly reduced. And sometimes the rotating brush 4
The suction port body may not move smoothly along the surface to be cleaned. However, according to the second embodiment, when the brush bristles 22a are strongly pressed against a convex part of the carpet and fall down, the rotating brush 22 escapes upward against the biasing force of the spring 33. be able to. Therefore, the rotation of the rotating brush 22 is prevented from decreasing significantly, so that the bristles 22a of the rotating brush 22 sweep up the surface to be cleaned at a substantially constant speed, regardless of the unevenness of the surface to be cleaned. The suction port body can be easily moved relative to the surface to be cleaned. Note that since the upward escape of the rotating brush 22 is relatively small, the timing belt 29 can absorb the above escape by contraction due to its elasticity, and does not substantially have a negative effect on the power transmission from the shaft 25 to the shaft 23. Of course.

[Effect of idea]

As explained above, according to the present invention, the width of the casing can be reduced to make it more compact, so it does not require a large space for storage and is easy to handle in confined spaces. Of course,
Also suitable for cleaning desks, shelves, sofas, etc. Since the rotational efficiency of the fan and the rotary brush by the suction air can be improved, the rotary brush can sweep up fluff from the carpet better, and the cleaning efficiency can be improved. Furthermore, due to the arrangement of the transmission mechanism, the dimension between the front end of the casing and the front end of the suction port can be shortened, making it possible to thoroughly clean even the edges of walls, etc., and the center of gravity of the casing is formed closer to the hand. To,
It has practical effects such as improved balance during use and improved operability.

[Brief explanation of drawings]

1 to 3 show a conventional example, in which FIG. 1 is a partially sectional plan view, FIG. 2 is a bottom view, and FIG. 3 is a longitudinal sectional side view. Figures 4 to 7 show the first embodiment of the present invention, with Figure 4 being a perspective view, Figure 5 being a vertical side view, Figure 6 being a bottom view, and Figure 7 being a partial sectional view. be. FIG. 8 is a longitudinal sectional side view showing a second embodiment of the present invention. DESCRIPTION OF SYMBOLS 11... Housing, 17... Suction port, 19... Suction pipe, 20... Rotating shaft part, 20a... Inlet, 21...
... Bearing, 22 ... Rotating brush, 23 ... Shaft, 24
...fan, 25 ... shaft, 26 ... transmission mechanism, 3
1...Opening.

Claims (1)

[Scope of Claim for Utility Model Registration] Inside a housing in which a vacuum cleaner's flexible hose end pipe, extension pipe, etc. are attached and detached, a suction pipe is rotatably installed.
In a suction port body of a vacuum cleaner that incorporates a fan that is rotated by suction air and a rotating brush that is rotated via a transmission mechanism by the rotational force of the fan, a shaft of the rotating brush, a shaft of the fan, The rotating shaft portion of the suction pipe is displaced from each other in a direction substantially perpendicular to the surface to be cleaned, and is arranged approximately parallel to the surface to be cleaned along the front-rear direction. An inlet of the fan is disposed on the rear side of the fan, and an opening provided in the housing to narrow and guide the intake air to the fan is disposed on the front side of the fan, and the shaft of the fan and the A suction mouth body for a vacuum cleaner, characterized in that the transmission mechanism connected to a rotating brush is disposed closer to the proximal side of the casing from which the suction pipe is protruded.