JPH0588467U - Rotating rotor of suction nozzle for vacuum cleaner - Google Patents

Abstract

(57) [Summary] [Purpose] When brushing the floor surface with a brush, it is most effective in preventing fibers and lint from becoming entangled in the brush. [Structure] A rotary rotor in which a belt-shaped blade having a U-shaped or L-shaped cross-section is attached to the rotor, and brushes are brushed onto the rotor through the blade where the blade and the rotor overlap with each other. It is characterized by separating dust that has adhered to it, hopping it up and sucking it in, and preventing the fibers and lint from being entangled by a blade that is slightly shorter than the brush.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a suction nozzle used as an attachment of a vacuum cleaner. In particular, in a rotating rotor that is built in and rotates, a flexible elongated strip-shaped blade that is pre-assembled into the rotor that constitutes it and a hair material that is in parallel with and in close contact with it Then, a brush is provided.

[0002]

[Prior Art]

 An example of the rotary rotor of the suction nozzle including the rotary rotor and the drive device for driving and rotating the rotary rotor is shown in FIGS. 8, 10, 12, and 13. A rotary rotor 9 shown in FIG. 8 is shown in a vertical section in FIG. 9, and an axis line connecting the centers of the shafts 1 and 2 to a rod-shaped rotor 5 having a deformed cross section which is rotatably supported by shafts 1 and 2 at both ends. Accordingly, the step portion 3 and the groove portion 4 are provided so as to be twisted around the above-mentioned axis, and the brush 6 is provided by bristling the bristle material so as to be radial toward the axis. When the rotary rotor 9 rotates, the tip 7 of the brush 6 comes into contact with the floor surface 8 and rubs (hereinafter referred to as brushing) to remove adhering dust, which jumps up and is absorbed by a cleaner. Although the rotating rotor 9 brushes with the brush 6, the cleaning action is extremely excellent, but if there is lint or fibers on the floor, the rotating rotor 9 will be entangled with the brush 6 and the rotor 5 and the brush will fall or lose its elasticity. This will prevent the cleaning function from being improved. Various improvements have been proposed to solve this problem. For example, there are JP-A-59-108532, JP-B-63-35246, and JP-A-61-10161. An example of this will be described with reference to FIGS. FIG. 10 shows the rotary rotor 55, and FIG. 11 is a vertical sectional view thereof. In the rotary rotor 55, an elastic elongated strip-shaped blade 51 is replaced with the brush 6 shown in FIG. 8 by inserting one end 52 thereof into a groove 50 provided in the rotor 5, and the other side is combined. The end 53 is open radially with respect to the axis of the rotor 5. The open end 54 has a continuous sawtooth shape or a shallow saw tooth shape even if there is a break, and has a structure twisted along the axis of the rotor 5. When the rotary rotor 55 rotates, the open end portion 54 contacts the floor surface 8. At this time, the blade 51 rubs the floor surface 8 while flexing due to its elasticity. When the contact between the floor surface 8 and the open end 54 is released by rotation, the blade 51 that has been bent is recovered, and at that time, the dust on the floor surface 8 is jumped up. The blade 51 is in the form of a single sheet in the form of a strip and has no cuts at its open end portion 54, and even if there is one, it is shallow and hardly entangled with lint or fibers. However, compared with the brush 6, there is a clear difference in the effect due to the brushing action, and therefore, there is Japanese Patent Publication No. 63-35246 to compensate for this, but it is still not comparable to the brushing effect due to the brush 6. In order to solve this problem, the applicant has proposed Japanese Patent Application Nos. 2-85274 and 2-17038. The rotating rotor in this proposal is shown in vertical sectional views in FIGS. 12 and 13, respectively. In FIG. 12, the rotating rotor 40 is provided with a groove 42 on the rotor 41 along its axis, and a blade 43 is combined therewith. Further, bristles are planted and brushes 44 are provided in parallel with the blade 43 in a radial pattern with respect to the axis. The tip 45 of the brush 44 is larger than the open end 46 of the blade 43 in the radius from the axis. In the rotating rotor 40 shown in FIG. 13, the structure of the blades 43 is different from that in the case of FIG. 12, and therefore the number of the blades 43 is changed, but the relationship between the brush 44 and the blades 43 is the same. Brush the floor surface with the brush 44 to remove dust that has adhered to it and jump it up. Prevent the lint and fibers from being entangled in the brush 44 and the rotor 41 by the blade 43 provided in parallel with the brush. Since each of them is most effective, the problems of the conventional technology can be solved, but since the blade 43 and the brush 44 are separately attached to the rotor 41, the rotor 41 must be thick. However, in the case of FIG. 12, since there is a large distance between the blade 43 and the brush 44, there is another anxiety in completely preventing the entanglement of lint and fibers.

[0003]

[Problems to be solved by the device]

 The rotating rotor, which brushes the floor surface with a brush that has been planted on the rotor as shown in the conventional example, has extremely excellent brushing performance, but if there is lint or fibers on the floor, it will become entangled with the brush or rotor and cause the brush action. In order to solve this problem, in order to solve this problem, instead of the above brush, elastic strip-shaped blades are attached radially along the axis of the rotor, which brushes the floor surface to remove lint or thread. However, this has a problem that the outer blade is liable to be worn, which deteriorates the brushing performance. In order to solve the above problem, the brush and the blade were mounted in parallel, brushing was performed with the brush, and the blade was designed to prevent the lint and fibers from becoming entangled.However, the following problems remain, It is an object of the present invention to solve this. (1) Since the brush and blade were attached to the rotor separately, it was necessary to make the rotor thick, which was uneconomical, the electric power required for rotation was large, and the size of the brush and blade was restricted. It may occur and the required flexibility may not be obtained. (2) Since the distance between the brush and the blade is large, there is another concern about the action of preventing the thread from clogging with the brush. The idea is to make sure that the brush does not get tangled with lint or fibers. At the same time, the thickness of the rotor on which the brush or blade is mounted is made as thin as possible to make it easier to obtain the elasticity of the brush or blade so that the effect of the brush or blade is further improved. Is an issue.

[0004]

[Means for Solving the Problems]

 According to the present proposal, the rotor is provided with a mounting portion such as a groove along the axis thereof, and a flexible strip-shaped blade having a U-shaped or L-shaped cross section is fitted to the rotor to assemble it. The problem is solved by bristling the bristle material from the blade of (1) to the rotor and arranging the brush in parallel with and close to the blade. The brush has a slightly larger radius from the rotor axis than the blade.

[0005]

[Action]

 Rotate the rotary rotor as described above, brush the floor surface with a brush, and use the blade to prevent lint and fibers on the floor from getting caught in the brush, but the section is U-shaped or L-shaped. The brush and blade can be placed very close to each other by placing the brush from the blade through the rotor to the part where the V-shaped blade is combined with the rotor, so that lint and weaves will not get caught in the brush and rotor. It is a very reliable way to prevent them from getting stuck. Further, since the brush and the blade are installed at the same position, the thickness of the rotor can be reduced, which is economical and requires less electric power to rotate the rotating rotor. In particular, since the thickness of the rotor becomes smaller than the outer diameter of the brush or blade, the length of the brush or blade becomes long, flexibility is easily obtained, and brushing performance can be improved. In addition, this reduces the resistance when moving the suction nozzle on the floor surface and facilitates the movement.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. 1 and 2 are perspective views of a suction nozzle 10 for a cleaner according to the present invention. FIG. 1 shows a front case 28 which is removable, and FIG. 2 shows the front case 28 removed. The lower case 11 is provided with a front wheel 12 for movement and a rear city wheel (not shown), and is divided into two parts by a partition 14 having a suction opening 13 at the center. A suction opening 17 is provided, and a rotary rotor 18 is mounted on the rotary rotor 18 so that both ends thereof can be rotated by bearings 19. The rotating rotor 18 has a gear 20 at one end thereof, and a belt 21 is hung on the gear 20. Further, a drive rotation device such as a motor (not shown) is housed in the rear portion 22, and the belt 21 is hung on a gear attached to the rotation shaft of the drive rotation device to transmit the rotation of the drive rotation device to rotate the rotation rotor 18. .. Further, a pipe 25 formed by assembling a suction pipe 23 and a connection pipe 24 which form an air passage communicating with the suction opening 17 is attached. The upper case 26 is attached to the one in which these are housed so as to cover the upper case 26 via the bumper 27. The front case 28 is covered on the front portion 15 of the lower case 11 via bumpers 27, and the clampers 29 at both ends engage with the protrusions 30 provided on the partition 14 so as to be detachable. When the suction nozzle 10 is moved on the floor surface and the rotary rotor 18 is rotated by the drive rotary device, the rotary rotor 18 which rotates in the suction opening 17 provided in the bottom portion 16 of the lower case 11 is provided in the rotary rotor 18 which will be described later. The brush brushes the floor surface, removes the dust adhering to the floor, jumps up, and is sucked into the cleaner body with which the suction nozzle 10 communicates. The rotary rotor 18 is shown in FIG. 3, and the shafts 1 and 2 at both ends are supported by bearings 19 to rotate. The rotor 31 is a rod-shaped member provided with a groove 32 along an axis connecting the centers of the shafts 1 and 2, and has a structure twisted around the axis. An elongated strip-shaped blade 33 having elasticity, which is U-shaped in section as shown in FIG. 4 or L-shaped in section as shown in FIG. 5, is fitted into the groove 32. Then, in this attached portion, the brush material is bristled through the blade 33 to the rotor 31, and the brush 34 is planted. FIG. 6 is a vertical cross-sectional view of the rotary rotor 18 in which the blades 33 each have a U-shaped vertical cross-section, and FIG. The blade 33 may have the width 35 shown in FIGS. 4 and 5 to be the minimum necessary for implanting the brush 34. If the diameter 36 of the implant of the brush 34 is 2.5 mm, the width 35 is 5. It may be about 5 mm. The tip end 37 of the brush 34 also projects outward even when the open end 38 of the blade 33 rises.

[0007]

[Effect of the device]

 The rotary rotor of the suction nozzle for a sweeper according to the present invention moves the suction nozzle on the floor and rotates the rotary rotor by a built-in drive rotation device, and (1) brushes the floor with a brush. (2) A blade is provided in parallel with and close to the brush, and the brush has a slightly larger outer diameter than the blade. As a result, (1) when cleaning with a vacuum cleaner, the brushing performance of the floor surface is the most excellent, so the cleaning effect is most remarkable. (2) Blades that are close to and in parallel with the brush completely block lint and threads that tend to become entangled in the brush and rotor. Further, since the brush and the blade are mounted on the same part of the rotor, the thickness of the rotor can be made thin, which is economical, and also requires less power to rotate the rotating rotor. This is the same as the case where the blade and the blade are lengthened, and it is easy to give the flexibility of the brush and blade, and it is possible to improve the brushing performance and the moving performance of the suction nozzle.

[Brief description of drawings]

FIG. 1 is a perspective view of a suction nozzle for a vacuum cleaner according to the present invention.

FIG. 2 is a perspective view when the front case 28 is removed in FIG.

FIG. 3 is a perspective view of a rotating rotor according to the present invention.

FIG. 4 is a perspective view of a blade according to an embodiment of the present invention.

FIG. 5 is a perspective view of another blade according to the embodiment of the present invention.

FIG. 6 is a vertical cross-sectional view of the rotary rotor in the embodiment of the present invention using the blade shown in FIG.

FIG. 7 is a vertical cross-sectional view of the rotary rotor in the embodiment of the present invention using the blade shown in FIG.

FIG. 8 is a perspective view showing an example of a conventional rotary brush.

9 is an explanatory view showing a relationship between a vertical cross-sectional view of the rotary brush shown in FIG. 8 and a floor surface.

FIG. 10 is a perspective view showing an example of a conventional rotary rotor.

FIG. 11 is an explanatory view showing a vertical cross-sectional view of the rotating rotor shown in FIG. 10 showing a relationship with a floor surface.

FIG. 12 is a vertical cross-sectional view of a rotating rotor according to a conventional proposal (Japanese Patent Application No. 2-85274).

FIG. 13 is a vertical cross-sectional view of a rotary rotor according to a conventional proposal (actual application Hei2-127038).

[Explanation of symbols]

 1 axis 2 axis 10 suction nozzle 18 rotating rotor 31 rotor 32 groove 33 blade 34 brush

Claims (1)

[Scope of utility model registration request] 1. A rotary rotor of an intake nozzle, which has a rotary rotor and a drive device for driving and rotating the rotary rotor, wherein the rotor constituting the rotary nozzle is provided with a mounting portion such as a groove along the axis of the rotary shaft. A flexible elongated strip-shaped blade having a U-shaped or L-shaped cross section is assembled to be integrated, and a brush is provided by implanting bristle material through the blade and the rotor at a portion where the blade and the rotor overlap, A rotating rotor of a suction nozzle for a vacuum cleaner, in which a brush and a blade are arranged in parallel.