JPS6345235Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a floor brush for a vacuum cleaner that is equipped with a rotating brush body that is rotated by a power source such as a fan.

[Conventional technology]

Generally, this type of floor brush transmits the rotational force of the power source to the rotating brush body by suspending a belt between a pulley attached to the rotating shaft of the rotating brush body and a pulley attached to the drive shaft of the power source. That's what I do.

In other words, since both ends of the rotating brush body are rotatably held in the brush body and a belt is suspended from the pulley, for example, if you want to remove the rotating brush body from the main body, first remove the end of the rotating brush body on the side opposite to the pulley. is removed from the main body, moved in the axial direction, the pulley is removed from the belt, and the entire belt is removed. On the other hand, when the rotating brush body is assembled into the main body, the pulley is first suspended on the belt, and at the same time, its end is held in the main body, and then the opposite end is held in the main body.

[Problem that the invention attempts to solve]

In conventional floor brushes such as those mentioned above, especially when assembling the rotating brush body to the main body, the end on the pulley side is passed through the inside of the belt and held in the main body, but the belt is usually flexible and Since the end of the belt is completely free, it is necessary to pull out the end of the belt to a specified position, create a space inside the belt, and then insert a pulley into this space, making the assembly process extremely troublesome. and
Moreover, there was the problem that it was very difficult to do because it took up a lot of space.

This invention was made in order to solve such problems, and in particular, the object is to obtain a floor brush for a vacuum cleaner that can easily perform the work of suspending the belt from the pulley.

[Means for solving problems]

In the floor brush for a vacuum cleaner according to this invention, the end of the rotary brush body on the pulley side is held by a bearing body fixed to the main body, and this bearing body is made long enough to touch the tapered surface of the outer peripheral edge of the pulley, and rotates. When the brush body is removed from the main body, the belt can be suspended around the outer periphery of the bearing body.

[Effect]

In this invention, when the rotating brush body is removed from the main body, the belt that has been hung on the pulley is removed from the pulley and hooked onto a nearby bearing body, and is held in the main body as it is. Next, when restoring the rotating brush body to the main body, after fitting the rotating shaft of the rotating brush body to the bearing body, you can easily attach the belt to the pulley by hanging the belt hooked on the bearing body. It can be returned to.

〔Example〕

An embodiment of this invention will be described below with reference to the drawings. That is, 1 is a main body consisting of a main body case 1a and a cover 1b that covers the bottom surface of the main body case 1a.
A dust suction port 2 is provided at the top, and an elbow 3 for connecting to a suction pipe of a vacuum cleaner is movably attached to the rear part. 4 is a partition wall forming a circuit from the suction port 2 to the elbow 3 inside the main body 1; 5 is a rotating brush body with a brush 6 embedded in a spiral shape on its circumferential surface;
It is arranged inside the main body 1 so as to correspond to the suction port 2, and both ends of the rotating shaft 7 are rotatably held in the main body case 1a. Reference numeral 8 denotes a pulley provided at one end of the rotating shaft 7, which has many irregularities formed on its circumferential surface and a tapered surface on its outer peripheral edge.

Thus, a pair of bearing parts 10, 10 whose lower surfaces are open are formed on the inner wall of the main body case 1a, and a bearing body 11 is fixed to one of the bearing parts 10, and the pulley side end of the rotating shaft 7 is fixed to the bearing body 11. The rotary brush body 5 is attached to the main body 1 with the other end of the rotary shaft 7 held by a bearing 10, respectively. 1
Reference numeral 2 denotes a fan rotatably disposed in a fan chamber 13 partitioned in the middle of the circuit, and a pulley 15 is provided at the end of the drive shaft 14. 16 is a belt suspended between the pulley 15 of the fan 12 and the pulley 8 of the rotating brush body 5 on the outside of the partition wall 4; 17 and 18 are a pair of intake ports opening side by side on the intake side wall surface of the fan chamber 13; So, one intake port 17
is positioned opposite to the fan 12, and a shutter 19 is provided at the other intake port 18 so as to be openable and closable.

The cover 1b has a pair of protrusions 20 at its rear end and a pair of slide engagement pieces 2 at its front end.
1, and the main body 1 is assembled by appropriately engaging these engaging pieces 21 with the main body case 1a. 22 and 23 are wheels for moving the main body 1.

In the above structure, when the vacuum cleaner is operated, dust and air are sucked in from the suction port 2, but if one of the suction ports 18 is blocked by the shutter 19,
Since all the air is sucked in from the other intake port 17, the fan 12 rotates at high speed, and the rotating brush body 5 rotates via the belt 16, which scrapes away the dust that has accumulated on the floor surface. Suction is taken from suction port 2. On the other hand, when the shutter 19 is opened, the air flowing in from the intake port 17 decreases, so the fan 12 stops rotating. When removing the rotating brush body 5 from the main body 1, disengage the slide engagement piece 21 from the main body case 1a, further disengage the protrusion 20, and remove the cover 1b from the main body case 1a. Since the lower surface of each bearing part 10, 10 is opened, first lift the end of the rotating brush body 5 opposite to the pulley, remove one end of the rotating shaft 7 from the bearing part 10, and then tilt the belt 16. When the rotating brush body 8 is shifted and hooked onto the circumferential surface of the bearing body 11 and then the rotating brush body 8 is pulled in the axial direction, the other end of the rotating shaft 7 is detached from the bearing body 11.

Therefore, the belt 16 remains caught between the pulley 15 of the fan 12 and the bearing body 11. Conversely, when attaching the rotating brush body 5 to the main body 1, first place the end of the brush body 5 on the pulley side diagonally on the bearing body 11, and at the same time insert the pulley 8 diagonally inside the belt 16 so that its tapered surface 9 When the brush is applied to the inner surface of the belt 16 and the brush body is rotated in this state, the belt 16 rides on the circumferential surface of the rotating pulley 8.

Thereafter, the end of the rotating shaft 7 on the pulley side is tightly fitted into the bearing body 11, the other end of the rotating shaft 7 is fitted into the bearing part 10, and the cover 1b is attached to the main body case 1a.

That is, when the rotating brush body 5 is removed from the main body case 1a, the belt 16 remains hooked on the circumferential surface of the bearing body 11, that is, in almost the same state as when suspended from the pulley 8, so that the rotating brush body 5 When assembled into the main body case 1a, the end of the rotating shaft 7 can be easily inserted into the inside of the bell 16.

[Effect of idea]

As described above, this invention has the advantage that the rotating brush body that has been removed from the main body can be easily assembled.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part showing an embodiment of this invention, FIG. 2 is a side sectional view, FIG. 3 is a side view of a rotating brush body, and FIG. 4 is an exploded perspective view of the main part. In the figure, 1 is the main body, 2 is the suction port, 5 is the rotating brush body, 7 is the rotating shaft, 8 is the pulley, 11 is the bearing body,
16 is a belt.

Claims (1)

[Scope of utility model registration request] A main body having a suction port on the lower surface and a built-in power source, a rotating brush body removably disposed inside the main body facing the suction port, and a rotary brush body provided at one end of the rotating shaft of the rotating brush body. It consists of a pulley, a belt connecting the pulley and the drive shaft of the power source, and a bearing body provided on the main body that fits and holds the pulley side end of the rotating brush body, and the bearing body is connected to the outside of the pulley. A floor brush for a vacuum cleaner characterized by having a length that touches the peripheral surface.