JPH0347220A - Miniature motor-driven cleaner - Google Patents

Abstract

PURPOSE:To prevent a rotary shaft and a bearing from being wound with waste threads by arranging flanges at both ends of the rotary shaft with both the ends of a rotary brush supported with the bearing, and by setting the sides of the surfaces of both the flanges confronted with each other, to be tapered surfaces. CONSTITUTION:At both the end sections of a rotary shaft 82 for a rotary brush 83, flanges 84, 54 are respectively arranged, and the aides of the surfaces of the flanges 84, 84 confronted with each other are set to be tapered surfaces. Accordingly, dust H led in an internal section by the rotary brush 83 through the flanges 84, 84 positioned outside an area for the formed opening 81 of a casing 8 is prevented from reaching the section of waste threads H' supported by a bearing hole 86 and a bearing hole 87 at both ends of the rotary shaft 82. As a result, the bearing sections are wound with the waste threads H', and a rotary load is not to be increased.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a small electric vacuum cleaner that catches and removes dust such as lint, cotton dust, etc. adhering to clothes etc. with the tip of a rotationally driven rotating brush.

[Conventional technology]

Traditionally used as a small electric vacuum cleaner.
The one shown in the publication is known. As shown in FIG.
It consists of a rotating brush 83° attached to the casing 80′ and a casing 80′ with an opening 81°, and the tip end is connected to the opening 81°.
When the rotary brush 83' facing `` is rotated by the motor 4, the tip of the rotary brush 83'' catches and removes lint, cotton dust, etc. attached to clothes etc.

[Problem to be solved by the invention]

However, in the above conventional example, the thread waste guided into the casing 80° by both ends of the rotating brush 83′ is
It may wrap around the rotating shaft 82' and the bearing that supports it, increasing the rotational load, accelerating the consumption of the battery V as a power source, or burning out the motor 4. The present invention was invented in view of the above-mentioned conventional problems, and its purpose is to provide a small electric vacuum cleaner in which lint does not get wrapped around the rotating shaft and the bearing that supports it. There is something to offer.

[Means to solve the problem]

According to the present invention, the brush tip of a rotary brush rotationally driven by a motor is made to face an opening formed in a casing, and both ends of the rotary brush are supported by bearings. is provided with a flange, and both flanges are characterized in that opposing surfaces thereof are tapered surfaces. [Function] According to the present invention, when thread waste is guided inside by the rotating brush, the tapered surfaces of the flanges provided at both ends of the rotating shaft of the rotating brush prevent the thread waste from reaching the bearing-supported portion of the rotating shaft. It prevents reaching. [Embodiment] The present invention will be described in detail below based on an embodiment shown in the accompanying drawings.As shown in FIG. A brush block 8 is removably disposed on the bottom surface of one end of the main body 1, which is a grip portion 11. The main body 1 has drive members such as a motor 4 disposed in a housing 10 that is divided into left and right halves, and a power switch 13 is disposed on the outer surface of the central part, and an exhaust port 1
4 is formed, a storage case 6 is attached to the upper surface thereof, and a brush block 8 is attached to the lower surface of the housing 10.
It serves as a mounting base 12 on which the housing 10 is attached.
The other end is the grip portion 11 as described above. Further, a protrusion 18 is integrally provided to protrude downward from the central lower surface of the housing 10. The motor 4 has a housing 10 as shown in FIG.
It is arranged inside the grip part 11 of. A fan 41 is attached to the output shaft 40. The fan 41 here is integrally formed with a pulley 42, and a belt 44 is passed between the pulley 43 disposed inside the protrusion 18 of the housing 10 and the pulley 42. In the figure, 48 is a bearing of the pulley 43, and 49 is a terminal block disposed within the end of the grip portion 11 to which the power plug 9 is connected. A battery may be housed in the grip portion 11 and used as a power source. The storage case 6, which is detachably attached to the top surface of the mounting base 12 in the housing 10 of the main body 1, has an open rear end surface and a long hole 63 formed in the bottom surface, and has an opening in which a filter 62 is attached. cover plate 6
1 is detachably attached to the rear opening. When this pill storage case 6 is attached to the main body 1 with the lower part fitted into the recess on the upper surface of the mounting base 12, the elongated hole 63 is inserted into the communication port 16 that vertically passes through the mounting base 12. Furthermore, the cover plate 61 faces the intake port 15 which is open in the front of the portion of the main body 1 in which the fan 41 is housed. The brush block 8 consists of a casing 80 with a slit-shaped opening 81 formed on the lower surface, and a rotating brush 83 with bristles planted around the entire circumference of a rotating shaft 82. The rotating brush is detachable from the casing 80. 83 is the rotating shaft 8
One end of 2 is a bearing hole 86 formed in the casing 80,
It is attached to the casing 80 by being supported by the other end that is inserted and connected to the pulley 43 or by a bearing groove 87 formed in the casing 80 . Furthermore, when the rotating brush 83 is attached to the casing 80,
As shown in FIG. 7, the tip of the rotating brush 83 faces the slit-shaped opening 81 and simultaneously projects from the opening 81. As shown in FIG. Furthermore, as shown in FIG. 5, the bearing groove 87 is provided with a protrusion 88 for preventing removal. As shown in FIG. 4, the brush unit 8 consisting of a rotating brush 83 and a casing 8o
The arms 17 formed on both sides of the lower part of the mounting base 12 of 0,
Ribs 8 provided at the top of both inner surfaces of the casing 8o at 17
It is attached to the main body 1 by engaging 5. The brush block 8 is installed by sliding the tip of the main body 1. At this time, the rotating shaft 8
2 is inserted into the pulley 43 and connected thereto. Once the brush block 8 is attached to the main body 1, the rotating shaft 82 is connected to the pulley 43, and the rotating shaft 82 and the brush 83 are rotated, the tip is made to protrude from the long slit 81 in the rotating direction of the rotating brush 83 in the casing 8o. A rotating brush 83 removes dust H, lint H', etc. adhering to the surface of the fabric S and sends it into the storage case 6. Dust H and lint H' accumulated in the storage case 6 are disposed of by removing the storage case 6 from the main body and then removing the cover plate 61. Dust H and lint H' remaining inside the brush block 8 are cleaned by removing the brush block 8 from the main body 1. Here, the rotating shaft 82 of the rotating brush 83
Flanges 84, 84 are provided at both ends of the flange 84, 84, and the opposing surfaces of these flanges 84, 84 are tapered surfaces. These flanges 8 located outside the area where the opening 81 is formed in the casing 8
4.84 is because the dust H and lint H'' drawn into the interior by the rotating brush 83 are absorbed by the bearing holes 86 and bearing grooves 8 at both ends of the rotating shaft 82.
This prevents thread waste from reaching the parts supported by the bearing parts 7, and thus prevents thread waste from wrapping around these bearing parts and increasing the rotational load. In addition, here, the slit-shaped opening 81 of the casing 80
The shape of the eight crosspieces in between is set to an outer width t2 as shown in FIG.
By reducing the inner width t1 and providing slopes to both wall surfaces, the load on the rotation of the rotating brush 83 is reduced.

【Effect of the invention】

As described above, in the present invention, the tapered surfaces of the flanges provided at both ends of the rotating shaft of the rotating brush prevent thread waste from reaching the bearing-supported portion of the rotating shaft. This prevents the wire from getting wrapped around itself and increasing the load.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of the present invention, Fig. 2 is a partially enlarged longitudinal sectional view of the same as above, Fig. 3 is an enlarged sectional view of the crosspiece between the openings of the casing, and Fig. 4 is the same as the above with the brush block removed. FIG. 5 is an exploded perspective view of the same, FIG. 6 is a perspective view showing the same in use, FIG. 7 is a perspective view of the same, and FIG.
) (b) is a front sectional view and a side sectional view of a conventional example, in which 80 is a casing, 81 is a slit, 82 is a rotating shaft, 83 is a rotating brush, and 84 is a flange. Figure 5 1

Claims (1)

[Claims] (1) The brush tip of a rotary brush that is rotationally driven by a motor is exposed to an opening formed in a casing, and both ends of the rotary brush are supported by bearings, and flanges are attached to both ends of the rotary shaft. The small electric vacuum cleaner is characterized in that both flanges have tapered surfaces facing each other.