JPS6339253B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a carpet suction port for a vacuum cleaner, and in particular, the invention relates to a suction port for a vacuum cleaner. This invention relates to a vacuum cleaner suction port that prevents dust such as lint from entering the vacuum cleaner.

[Conventional technology]

In the past, various devises and improvements have been made to prevent dust such as lint from entering inside the bearing of a rotating rotary brush (1983-
No. 173727), many of them had problems such as complicated structures, increased steps during assembly, and problems with dustproofness inside the bearing.

[Problem to be solved by the invention]

The present invention eliminates the drawbacks of the conventional rotary brush, prevents the noise of the bearing of the rotary brush by using anti-vibration rubber, and utilizes the anti-vibration rubber to improve the dust resistance inside the bearing of the rotary brush. Another object of the present invention is to provide a suction port for a vacuum cleaner carpet equipped with vibration-proof rubber that facilitates the assembly work.

[Means to solve the problem]

The present invention has been made in view of the above-mentioned problem, and includes a suction case in which a rotary brush is installed, and an elastic bearing vibration-proofing rubber that supports the rotary brush rotated by a drive means such as a drive motor. The peripheral edge of the vibration isolating rubber of the bearing part is made to protrude toward the rotary brush side, and the outer periphery of the end surface of the rotary brush is covered in a non-contact manner by the tapered part of the vibration isolating rubber, while the end surface of the rotary brush covered in the non-contact manner It is equipped with a flange that protrudes from the side.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

In FIGS. 1 to 3, 1 indicates a mouthpiece case;
2 is a rotary brush, 3 is a suction duct, 4
is a T-shaped joint, 5 is a wheel (large), and 6 is a wheel (small).

In addition, 7 is a drive motor, 8 is a pulley (large), and 9 is a drive motor.
1 is a pulley (small), 10 is a transmission belt, and 11 is a vibration-proof rubber.

Furthermore, 12 is a bearing support rib, 13 is a shaft stop plate, 14 is a rolling bearing, 15 is a shaft,
16 is a bearing holding plate, 17 is a vibration-proof rubber tapered part, 1
8 is a bearing stopper plate, and 19 is a flange.

That is, a rotary brush 2 is installed inside the mouthpiece case 1, and this rotary brush 2
is rotated by a drive motor 7.

When the rotary brush 2 rotates and dust is sucked into the mouthpiece case 1, the vibration-proof rubber peripheral part 17 installed near the rotary brush 2
works to prevent dirt from entering between the bearing holding plate 16 and the shaft stopper plate 13, and the dirt is removed from the suction duct 3,
It will smoothly enter the vacuum cleaner body through the T-shaped joint 4.

Further, if a flange is protruded from the end face of the rotary brush 2, it is possible to further prevent the intrusion of dust.

The mouthpiece case is integrally provided with a bearing support rib 12 for supporting the rotary brush 2, and also has wheels (large) 5 and wheels (small) for smooth movement of the mouthpiece. 6 is provided, and a T-joint 4 is further provided for connection to a vacuum cleaner body (not shown) provided with a fan motor.

The rotary brush 2 and the drive motor 7 are provided with a pulley (large) 8 and a pulley (small) 9, respectively, and a transmission belt 10 is provided to transmit the rotation of the drive motor 7 to the rotary brush 2. hung on them.

The suction duct 3 is a passage for dirt sucked in from the suction port through the T-shaped joint and into the duct case.

Shaft 15 inside rotary brush 2
The end portion of the shaft stopper plate 13 is formed into a notch, into which the shaft stopper plate 13 is engaged.

The shaft stopper plate 13 is connected to the bearing support rib 12 of the suction case 1 via the vibration isolating rubber 11 around it.
Supported by

The tapered portion 17 of the anti-vibration rubber is connected to the rotary brush 2
It is installed near the.

After the rolling bearing 14 is press-fitted into a bearing retaining plate 16, it is fixed by a bearing retaining plate 18, and this bearing retaining plate 16 is removably engaged with the rotary brush 2.

That is, the rotary brush 2 is rotatably held via the rolling bearing 14.

On the other hand, when the rotary brush 2 rotates and dust is sucked into the suction case 1, the vibration-proof rubber tapered portion 17 installed near the rotary brush 2 is connected to the bearing presser plate 16 and the shaft stopper plate 13.
This works to prevent dirt from entering between the two, and the dirt smoothly enters the vacuum cleaner body through the suction duct 3 and the T-shaped joint 4. Further, in this embodiment, a case has been described in which a motor is used as the rotary brush driving means, but other means than the motor, such as an air turbine, may be used with the same effect. Further, as long as the cross-sectional shape of the tapered portion of the vibration-proof rubber of the bearing portion is tapered as shown in FIGS. 4 and 5, there is no difference in the effect even if the shape is different.

〔Effect of the invention〕

The effects of the present invention are as follows.

(1) With a simple structure, it is possible to remove dust from entering the bearing part of the rotary brush, and the flow of dust can be made smooth.

(2) Not only is the structure simple, productivity is high, but also high reliability can be obtained.

(3) The sound of the rotary brush bearing can be prevented by the anti-vibration rubber, and the anti-dust properties inside the rotary brush bearing can be improved by using this anti-vibration rubber.

(4) The tapered part of the anti-vibration rubber is installed so that the periphery covers the outer periphery of the end of the rotary brush without contacting it, so rotation is smooth and quiet.

(5) Furthermore, since a flange is provided on the end face of the rotary brush, it is possible to further prevent dirt from entering the bearing part.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the main part of the embodiment of the present invention taken along the X-Y line in Fig. 2, Fig. 2 is a partially cutaway bottom view, Fig. 3 is a longitudinal sectional view, and Figs. 4-5. FIG. 3 is a diagram showing another embodiment. 1... Suction case, 2... Rotary brush,
3... Suction duct, 4... T-type joint, 5... Wheel (large), 6... Wheel (small), 7... Drive motor, 8
...Pulley (large), 9...Pulley (small), 10...
Transmission belt, 11... Anti-vibration rubber, 12... Bearing support rib, 13... Shaft stop plate, 14... Rolling bearing, 15... Shaft, 16... Bearing retainer plate, 17... Anti-vibration rubber tapered portion , 18...Bearing stop plate, 19...Flange.

Claims (1)

[Claims] 1 In the mouthpiece case that houses the rotary brush,
The rotary brush is rotated by a driving means such as a drive motor, and the rotary brush is rotated by a drive means such as a drive motor. A carpet suction spout for a vacuum cleaner, characterized in that it is installed so as to be covered in a non-contact manner by a tapered part of rubber, and a flange that protrudes from the end face of a rotary brush that is covered in a non-contact manner.