JPH04253825A - Intake tool for vacuum cleaner - Google Patents

Abstract

PURPOSE:To provide an intake tool for vacuum cleaner improved in safety and durability by a method wherein both end parts of a subsidiary agitator 10 provided inside a nozzle body 1 of various vacuum cleaners are protected from touching by hands and the nozzle body 1 is protected from accumulation of dust inside of it. CONSTITUTION:A protection cover 16 is provided on both sides of a nozzle body 1 and a metal plate is provided to cover inside of the nozzle body 1 at a position where a subsidiary agitator is located.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction tool for a vacuum cleaner having an agitator that rotates to stir and sweep dirt on a floor surface.

0002

2. Description of the Related Art Conventionally, in this type of floor nozzle, a sub-agitator is fixed coaxially with the main agitator, and this sub-aggitator is located outside the side wall of the nozzle body. The sub-agitator is constructed by radially planting agitating members made of brush bristles or the like on the outer peripheral surface of a circular rotating body, thereby making it possible to clean even the corners of the room.

0003

[Problem to be Solved by the Invention] However, in the above configuration, since the sub-agitator is located outside the side wall of the nozzle body, there is a problem that the worker's hand may accidentally touch it, causing injury. .

The present invention is intended to solve this problem, and an object of the present invention is to provide a safe suction tool for a vacuum cleaner that does not allow the operator's hands to touch the auxiliary agitator.

[0005]

[Means for Solving the Problems] The means of the present invention for achieving the above object is to provide a main agitator which is rotatably driven by a drive source inside the nozzle body, and to attach the main agitator to both ends of the main agitator. A secondary agitator for corner cleaning that rotates in conjunction is arranged, a protective cover is provided on the outside of this secondary agitator, and a metal plate is further provided to cover the inner surface of the nozzle body where the secondary agitator is located. It is.

[0006]

[Operation] With the above-mentioned means, in the vacuum cleaner suction tool of the present invention, the outside of the sub-agitator is covered with a protective cover, so there is no danger of an operator's hands accidentally touching it.

[0007] Furthermore, when a protective cover is provided, dust tends to accumulate between the cover and the sub-agitator. When the nozzle is used for a long time or large pieces of dirt get into it, dirt tends to accumulate between the inner surface of the nozzle body and the outer periphery of the sub-agitator.

[0008] As a result, a load is applied to the rotation of the auxiliary agitator, and the inner surface of the nozzle body or the protective cover may melt due to frictional heat from the dust.

[0009] In the present invention, even if dirt gets inside the nozzle body, there is less resistance due to the metal plate disposed on the inner surface of the nozzle body and it is difficult for it to accumulate, so the load on the sub-agitator is also reduced. .

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, a nozzle main body 1 has a suction port 2 on the bottom surface, and a main agitator 3 is provided laterally inside the nozzle main body 1. The main agitator 3 is constructed by planting a stirring member 5 such as brush bristles or an elastic band on the outer peripheral surface of a rotating cylinder 4, with a part of the stirring member 5 protruding outside the suction port 2. It is provided.

A shaft 6 passing through the center of the rotating cylinder 4 is supported by a bearing device 8 having a ball bearing 7, and its end is configured to protrude outside from the side wall 9 of the nozzle body 1. Further, the main agitator 3 is rotated by a drive source such as a motor or an air turbine.

The sub-agitator 10 is disposed at the end of the shaft 6, that is, on the outside of the side wall 9 of the nozzle body 2.

The auxiliary agitator 10 includes a circular rotating body 12 made of synthetic resin fixed to the shaft 6 via a screw 11;
A stirring member 13 made of brush bristles or the like is installed radially on the outer peripheral surface of the rotating body 12 with the outer peripheral end positioned slightly outward. It is composed of a shielding brush 14 with bristles planted toward.

The outside of the auxiliary agitator 10 is covered with a protective cover 16 in which a plurality of slit-like confirmation holes 15 are formed radially.

The opening area of the slit-shaped confirmation hole 15 is set to such an extent that the hands and fingers of a child or the like cannot enter therein. In addition, the lower part of the protective cover 16 is linear, and the sub-agitator 1
I try to cover the part except under 0.

In the above configuration, the main agitator 3 scrapes out dirt from a surface to be cleaned, for example, a carpet surface, and guides it to the suction port 2 of the nozzle body 1. The dirt introduced into the suction port 2 flows through the passage in the nozzle body 1, the extension pipe, the hose, etc. due to the suction force of the vacuum cleaner, and reaches the filtration section.

When cleaning a corner of a room, the sub-agitator 10 may be placed along the corner of the room.

Since the outside of the secondary agitator 10 is covered with a protective cover 16, there is almost no risk of touching the stirring member 13 of the secondary agitator 10 even if a child or the like accidentally approaches the hand. This prevents your fingers from getting caught and causing injury.

By the way, some of the scraped up dirt may enter between the protective cover 16 and the auxiliary agitator 10, putting a load on the auxiliary agitator 10 and causing damage due to frictional heat. .

Therefore, in this embodiment, a metal plate 17 is provided on the inner surface of the nozzle body 1 so as to cover the inner surface of the nozzle body 1 where the sub-agitator 10 is located.

[0021] As a result, even if dirt gets inside the nozzle body 1, the resistance will not remain low due to the metal plate.

Furthermore, as shown in FIG. 2, the protective cover 18
A similar effect can be obtained by making the material out of metal and forming it integrally with a metal plate.

[0023] Furthermore, by integrally forming the parts, there is no need to increase the number of parts and assembly is facilitated.

[0024]

[Effects of the Invention] As described above, the present invention provides safety by providing a protective cover on the side surface of the nozzle body so that operators and the like will not accidentally touch it.

Furthermore, by arranging the metal plate to cover the inner surface of the nozzle body where the auxiliary agitator is located, dirt is less likely to accumulate between the auxiliary agitator and the nozzle body.

[0026] Therefore, it is possible to realize a suction tool for a vacuum cleaner that is excellent in durability and does not impose an extra load on the sub-agitator and is not damaged by frictional heat.

Furthermore, by integrally forming the metal plate with the protective cover, the same effect can be obtained without increasing the number of parts, and assembly can be simplified.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of essential parts of a suction tool for a vacuum cleaner according to a first embodiment of the present invention.

[Fig. 2] Cross-sectional view of main parts showing the mounting situation of the metal plate in the first embodiment

[Fig. 3] A cross-sectional view of the main parts of a suction tool for a vacuum cleaner according to a second embodiment of the present invention.

[Explanation of symbols]

1 Nozzle body 3 Main agitator 10 Sub-agitator 16 Protective cover 17 Metal plate

Claims (2)

[Claims] Claim 1: A main agitator that is rotatably driven by a drive source is disposed inside the nozzle body, and a corner cleaning auxiliary agitator that rotates in conjunction with the main agitator is arranged at both ends of the main agitator. A suction tool for a vacuum cleaner, in which a protective cover is provided on the outside of a sub-agitator, and a metal plate is further arranged to cover the inner surface of a nozzle main body where the sub-agitator is located. 2. The suction tool for a vacuum cleaner according to claim 1, wherein the metal plate covering the inner surface of the nozzle body where the auxiliary agitator is located is formed integrally with the protective cover.