JP2006034996A - Rotating rotor of floor nozzle for vacuum cleaner - Google Patents

Abstract

Provided is a rotary rotor that has low vibration and noise during rotor rotation and has a wiping effect and a polishing effect when used on a smooth floor surface such as flooring.
The rotating rotor includes a shaft 12 that is rotated by a driving device, a blade member 11 that is made of a flexible material and has a plurality of blade portions 20 outside a cylindrical portion 19, and a raising member attached thereto. A blanket blade portion 27 and brackets 13 and 14 that are locked to both ends of the blade member 11 and fixed to the shaft 12 are provided. The raised cloth blade part 27 is sewed so that the raised cloth blade member 24 composed of the base part 25 and the bristles 26 is cut into two rectangular shapes, the base parts 25 are overlapped with each other, and the shaft 12 is sandwiched in the center part in the width direction. It is a thing. The raised cloth blade portion 27 sandwiches the shaft 12 and is insert-molded in the center of the cylindrical portion 19. The blade member 11 is twisted around the shaft 12 by a predetermined angle, and the blade portion 20 and the raised cloth blade portion 27 are spiral.
[Selection] Figure 9

Description

  The present invention relates to a rotary rotor for a floor nozzle used as an attachment for a vacuum cleaner.

  For example, as described in Japanese Patent Application No. 7-348495, a rotary rotor of a conventional floor nozzle for a vacuum cleaner is formed by using a blade member having a blade on the outside of a cylindrical portion, and a flexible rubber or plastic. Extrusion molding with a material such as the above, let the shaft pass through the center hole of the cylindrical part, twist the blade member around the shaft to make the blade part spiral, and lock the bracket to both ends of the blade member Is fixed to the shaft.

  Such a conventional rotary rotor has a straight shaft inserted into a hollow hole of a cylindrical portion of a blade member extruded by a material such as flexible rubber or plastic, so that it can be easily assembled. Therefore, a clearance must be provided between the outer diameter of the shaft and the inner diameter of the hollow hole of the cylindrical portion. For this reason, play occurs between the shaft and the blade member, resulting in a rotating rotor with poor accuracy, a large unbalance amount, and large vibration during rotor rotation. In addition, when used on a smooth floor such as flooring, wiping and polishing effects were not expected.

  An object of the present invention is to provide a rotating rotor that has low vibration and noise when the rotor rotates, and has a wiping effect and a polishing effect when used on a smooth floor surface such as flooring.

  In order to achieve the above object, the rotating rotor of the present invention employs the following means. That is, the invention of claim 1 includes a shaft that is rotated by a built-in driving device, a blade member that is made of a material such as flexible rubber or plastic, and that has a plurality of blade portions outside the cylindrical portion, and a base portion and a bristle. The brushed blade member is cut into two rectangular shapes and the base portions are overlapped with each other, and the raised blade portion is sewn so that the shaft is sandwiched in the center in the width direction, and both ends of the blade member are engaged. A bracket that is stopped and fixed to the shaft, insert-molding the shaft having the brushed blade portion at the center of the cylindrical portion of the blade member, and twisting the blade portion at a predetermined angle around the shaft The blade part and the raised cloth blade part are formed in a spiral shape.

  According to a second aspect of the present invention, there is provided a shaft that is rotated by a built-in driving device, a blade member that is made of a material such as rubber or plastic having flexibility, and has a plurality of blade portions on the outer side of the cylindrical portion; The brushed blade member is cut into a rectangular shape, folded back so that the bristles are on the outside, and the ends are stitched together so that the seam overlaps the shaft, or each end has a seam. A raised cloth blade portion sewn to the raised cloth blade member so as to be in the vicinity of the outer periphery of the shaft, and brackets that are locked to both ends of the blade member and fixed to the shaft are provided at the center of the cylindrical portion of the blade member. The shaft having the brushed blade portion is insert-molded, and the blade portion and the brushed blade portion are spirally formed by adding a predetermined angle twist around the shaft. It is a symptom.

  In the rotary rotor of the present invention, since the shaft having the raised blade portion is insert-molded in the cylindrical portion of the flexible blade member, the shaft and the blade member are compared with those in which the shaft is inserted later. There is no play between them, vibration and noise due to uneven rotation are reduced, and when used on a smooth floor such as flooring, there is a wiping effect and a polishing effect.

  Embodiments of the present invention will be described with reference to the drawings. 1 and 2 show a floor nozzle for a vacuum cleaner, 1 is a lower case of a floor nozzle having an elongated elongated opening 2 on the bottom surface, 3 is an upper case, and 4 is a lower case 1 and an upper case 3 at the center of the opening 2. An intake port 5 is surrounded by a suction pipe connected to an extension pipe (not shown) of the cleaner. Reference numeral 6 denotes a belt for transmitting the rotation of the motor 7 to the rotating rotor 8, which is hung on the driving pulley 9 of the motor 7 and the driven pulley 10 of the rotating rotor 8.

  The rotary rotor 8 includes a blade member 11, a linear shaft 12, a driven side bracket 13 (hereinafter referred to as a bracket 13) having a driven pulley 10, and a play side bracket 14 (hereinafter referred to as a bracket 14). , 16 are attached to the bearing mounting recesses 17 and 18 provided in the lower case 1, and are held rotatably.

  The axis | shaft 12 is a linear round steel, and the surface is made very smooth (refer FIG. 5). The blade member 11 has a blade portion 20 that projects outward from the cylindrical portion 19 and is made of a material such as flexible rubber or plastic.

  The shaft 12 is insert-molded at the center of the cylindrical portion 19 (see FIG. 6), and with the shaft 12 fixed, only the blade member 11 is twisted on the outer periphery of the shaft 12 at a predetermined angle to form a spiral shape. It is said. Since the shaft 12 has a very smooth surface, the blade member 11 is twisted including the cylindrical portion 19.

  As shown in FIG. 7, a hole 21 matching the outer diameter of the shaft 12 is placed in the center of the brackets 13 and 14, and a tip 22 of the blade 20 is placed on the blade member 11 side for positioning. The recess 23 is provided. Then, the concave portions 23 of the brackets 13 and 14 are aligned with the tip 22 of the blade portion 20, and the brackets 13 and 14 are fixed to the shaft 12. Thereby, as shown in FIGS. 3 and 4, the blade portion 20 is kept in a spiral shape.

  The rotary rotor 8 according to the present invention includes the raised blade member 27 on the flexible blade member 11. The raised cloth blade portion 27 is made by using the raised cloth blade member 24 shown in FIG. 10, and the raised cloth blade member 24 is formed by densely planting single fibers on a base fabric, and is composed of a base portion 25 and a hair portion 26. ing.

  The embodiment of claim 1 uses two raised cloth blade members 24 cut into a rectangular sheet shape shown in FIG. 10 and uses a base 25 of the raised cloth blade member 24 as shown in FIGS. The bases 25 are sewn together with a sewing machine or the like with the shaft 12 sandwiched between the center portions in the width direction of the raised cloth blade member 24 so that the bristles 26 are on the outside. Thereby, the raised cloth blade part 27 is formed outward from the shaft 12. Then, the shaft 12 having the raised cloth blade portion 27 is insert-molded at the center of the cylindrical portion 19 of the blade member 11 having the blade portion 20 made of a flexible material.

  Then, with the shaft 12 fixed, the cylindrical portion 19 of the blade member having the blade portion 20 and the raised cloth blade portion 27 on the outside is twisted to the outer periphery of the shaft 12 at a predetermined angle, and the brackets 13, 14 are added. The concave portion 23 is fixedly aligned with the tip 22 of the blade portion 20 (see FIG. 15). As a result, as shown in FIGS. 8 and 9, the rotary rotor 8 in which the blade part 20 and the raised cloth blade part 27 are kept in a spiral shape is completed.

Next, an embodiment of claim 2 will be described based on the drawings. Since the configuration other than the raised cloth blade portion is the same as described above, the description thereof is omitted.
As shown in FIG. 16, one brushed cloth blade member 24 cut into a rectangular sheet is sewed on the end face so that the bristles 26 are on the outside, and on the inside of the bag, the shaft 12 and the seam 28 Are positioned so as to overlap with each other, and are formed integrally with the cylindrical portion 19 having the blade portion 20 to form the blade portion 20 and the raised cloth blade portion 27.

  Alternatively, as shown in FIG. 17, one raised cloth blade member 24 cut into a rectangular sheet is folded back so that the bristles 26 are on the outside, and the ends are sewn to the raised cloth blade members 24. At this time, the two seams 28 are configured to be positioned near the outer periphery of the shaft 12. And this is integrally molded in the cylindrical part 19 which has the blade part 20, and the blade part 20 and the raising cloth blade part 27 are formed.

The perspective view except the upper case of the floor nozzle which accommodates the rotation rotor of embodiment of this invention. The cross-sectional view of a floor nozzle. The front view which made a part of rotation rotor into the cross section. The perspective view of a rotation rotor same as the above. FIG. The perspective view which shows the state which insert-molded the axis | shaft in the blade member similarly. The perspective view which shows the state before inserting a bracket after integrally forming a blade member and a shaft. The front view of the rotary rotor which made the part the cross section which shows the Example of Claim 1. The perspective view of a rotation rotor same as the above. The perspective view of a raising cloth blade member. The perspective view which shows the state which pinched | interposed the shaft with the raising cloth blade member similarly. FIG. 12 is a cross-sectional view taken along the line AA in FIG. 11. The perspective view of the state which insert-molded the axis | shaft pinched | interposed into the cylindrical part of the blade member with the raising cloth blade member. BB sectional drawing of FIG. 13 same as the above. The perspective view which shows the state before inserting a bracket after insert-molding a blade member, a raising cloth blade part, and a shaft. The cross-sectional view of a rotating rotor showing the embodiment of claim 2. The cross-sectional view of a rotary rotor which shows another Example same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lower case 2 Floor nozzle 3 Upper case 4 Intake port 5 Intake pipe 6 Belt 7 Motor 8 Rotating rotor 9 Drive pulley 10 Driven pulley 11 Blade member 12 Shaft 13 Bracket 14 Bracket 15 Bearing 16 Bearing 17 Bearing mounting recess 18 Bearing Mounting recess 19 Column 20 Blade portion 21 Hole 22 Tip 23 Recess 24 Raised blade member 25 Base 26 Hair 27 Raised blade 28 Seam

Claims (2)

A shaft that is rotated by a built-in driving device, a blade member that is made of a material such as flexible rubber or plastic, and that has a plurality of blade portions outside the cylindrical portion, and a brushed blade member that includes a base portion and a hair portion A brushed fabric blade portion that is cut into two rectangles to overlap the base portions and is sewn so as to sandwich the shaft in the center in the width direction, and a bracket that is locked to both ends of the blade member and is fixed to the shaft The shaft having the raised cloth blade portion in the center of the cylindrical portion of the blade member is insert-molded, and the blade portion is added with a predetermined angle twist around the shaft, and the blade portion and the raised cloth blade portion A rotary rotor of a floor nozzle for a vacuum cleaner, characterized by having a spiral shape. A shaft that is rotated by a built-in driving device, a blade member that is made of a material such as flexible rubber or plastic, and that has a plurality of blade portions outside the cylindrical portion, and a brushed blade member that includes a base portion and a hair portion Cut it into a rectangle and fold it back so that the bristles are on the outside and sew the ends together so that the seam overlaps the shaft, or each end is so that the seam is near the outer periphery of the shaft The shaft comprising a brushed cloth blade portion sewn to the brushed fabric blade member and brackets that are locked to both ends of the blade member and fixed to the shaft, and the shaft having the brushed blade portion at the center of the cylindrical portion of the blade member. A floor nozzle for a vacuum cleaner, wherein the blade portion and the brushed blade portion are spirally formed by insert molding the blade portion with a predetermined angle twist around the axis. Rotating rotor.

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