JPS59192340A - Polisher - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to polylashes used for floor cleaning.

Conventional Structures and Problems Conventional polyrushers, especially small ones, use a commutator type motor, and their cooling ventilation passages are largely open to the atmosphere.

However, Horinosha is generally stored together with buckets, rags, wet motsupu, etc., which causes problems such as water entering the interior through the ventilation channels and having a negative impact on the motor and speed reduction mechanism. was there.

OBJECTS OF THE INVENTION The present invention eliminates the above-mentioned drawbacks of the prior art, and provides a polyrusher which prevents water from entering from the cooling air passage of the motor and is free from failure.

Structure of the Invention The polyrusher of the present invention includes a co-rotating brush, a motor that drives the rotating brush via a speed reduction mechanism and has a cooling ventilation passage, and a handle that is pivotally mounted to the main body so as to be able to move up and down. and a shutter that opens and closes the cooling ventilation passage in response to the vertical movement of the handle.

Therefore, when the handle is rotated upward during storage, the cooling ventilation passage is automatically closed.

Description of examples Examples thereof will be described below with reference to the accompanying drawings.

In the figure, 1 is a main body provided with a rotating brush 3 on the bottom that is linked to a speed reduction mechanism 2, 4 is arranged above this main body 1,
A commutator motor that drives the rotary blank 3 via the speed reduction mechanism 2, 6 indicates its cover. Reference numeral 6 denotes a cooling ventilation passage for the motor 4 formed in the main body 1, in the middle of which a cooling fan 7 for the motor 4 is exposed, and its starting end is open to the rear of the main body 1. Reference numeral 8 denotes a shutter that opens and closes the cooling ventilation passage 6, the upper part of which is pivotally mounted on the main body 1, and a flap protrusion 9 extending upward from this pivot point penetrates the earthen wall of the cooling ventilation passage 6 and extends upward. It stands out. The shutter 8 is normally closed due to its own weight.

Reference numeral 10 denotes a handle attached to the rear of the main body 1 and in the -F direction of the cooling ventilation passage 6 via a support shaft 11 so as to be movable up and down. A notch 12 and an arcuate cam portion 13 continuing to the rear side of the notch 12 are formed. The projecting piece 9 of the annular tar 8 faces this notch 12 or comes into contact with the cam part 13. Reference numeral 14 denotes a switch for controlling the start and stop of the motor 40, which opens and closes in response to the vertical movement of the handle 10.

In the above configuration, FIG. 2 shows the non-use condition, ie, in this condition the handle 10 is upright.

From this, the switch 14 is pushed by the handle 1o and 0F
Fj, and since the projecting piece 9 faces the notch 12, the shutter 8 closes under its own weight and blocks the cooling ventilation passage 6.

Therefore, even if water is splashed on it, it will not invade the inside of the motor 4 or the speed reduction mechanism 2.

Next, in actual use, set the handle 10 to 1.3.
Change from upright to inclined position as shown in the figure.

Then, the switch 14 is turned on, and the motor 4 becomes ready for operation. The rotation of the motor 4 is transmitted to the rotating brush 3 via the deceleration mechanism 2. On the other hand, when the handle 10 is tilted, the projecting piece 9 of the shutter 8 comes out from the notch 12 and moves to the cam part 13, so that the shutter 8 is opened. However, during operation, external air is introduced into the cooling ventilation passage 6 via the cooling fan 7, and exhaust after cooling is performed through the gap between the cover 5 and the main body 1. .

Effects of the Invention As described above, according to the present invention, it is possible to reliably prevent water from entering from the cooling ventilation passage even if the polyester/yarn is stored together with a wet motu. This protects the deceleration mechanism from water, preventing breakdowns and extending its lifespan.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a polysocher showing an embodiment of the present invention;
FIG. 2 is a sectional view, and FIG. 3 is an enlarged sectional view of the main part. 1...Main body, 2...Deceleration mechanism, 3...
- Rotating brush, 4...Motor, 6...Cooling ventilation path, 8...Nyatter, 10...Handle, 14...Switch. Name of agent: Patent attorney Toshio Nakao and 1 other person 1st
Figure 2

Claims (2)

[Claims] (1) a rotating brush; a motor that drives the rotating brush via a speed reduction mechanism and has a cooling ventilation path;
A porinosha is equipped with a handle pivotably mounted on a main body so as to be movable up and down, and a shutter that opens and closes a cooling air passage in response to the up and down movement of the handle. (2) The polygon 7-wheel according to claim 1, wherein a switch for controlling the start and stop of the motor is provided in conjunction with the handle.