JPS61240928A - Suction device of electric cleaner - 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 Book 11111p This invention relates to a suction tool for a vacuum cleaner that is equipped with a turbine rotated by the intake air of the vacuum cleaner and a rotating brush that uses the turbine as a driving source.

BACKGROUND OF THE INVENTION A conventional suction device of this type is shown in FIGS. 6 and 7.
The shape and dimensions of the turbine 3 that drives the rotating brush 2 via the belt 1 are fixed. Further, the turbine 3 integrally includes a shaft body 4 and a bearing 6, and is fixed to the suction tool main body 6 via the bearing 6.

T rotates the turbine 3 so as to rotate the turbine 3 efficiently.
A rotating brush 2 is driven via a belt 1 by a turbine 3 which is rotated by intake air flowing in from a ventilation lower through a ventilation hole provided at a lower part of a substantially central portion facing each other.

Problems to be Solved by the Invention In the conventional suction device as shown above, the shape and dimensions of the turbine 3 were fixed and constant, so the vacuum cleaner itself was not suitable for commercial use, which requires powerful performance. If the vacuum cleaner is used in a vacuum cleaner, the rotation speed of the turbine 3 and rotating brush 2 will be too high, and the durability of the belt 1 and bearing 5 will be poor. Ta. In addition, when used in a vacuum cleaner with high performance, it is necessary to increase the area of the ventilation lower by using separate parts or post-processing, and to lower the rotation speed of the turbine 3, which increases the number of parts and man-hours and costs. It was both expensive and noisy.

In order to solve the above-mentioned problems, the present invention forms a turbine by combining multiple parts so that the rotational speed of the turbine can be freely and easily adjusted.

Means for Solving the Problems In order to overcome these conventional drawbacks, the present invention provides a turbine formed of one piece or a combination of multiple parts.

Operation According to the present invention, the rotation speed of the turbine can be controlled by changing the specifications of the turbine, and thereby a suction tool compatible with vacuum cleaners of various performances can be obtained.

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. In Figures 1 to 4, 8 is a suction tool main body that can be divided into upper and lower parts, and a lower opening part is provided in the front interior of the main body of the suction tool.
A suction chamber 1o is formed therein, and a turbine chamber 11 is formed in the rear interior thereof.

12 is a partition wall that partitions the suction chamber 1o and the turbine chamber 11; 13 is a rotating brush that is provided in the suction chamber 10 in parallel thereto and has a part of the brush bristles 14 protruding to the outside through the suction port 9; Reference numeral 15 denotes a fixed brush attached parallel to the rear of the suction port 9, and wheels 16 and 17 are provided at the front and rear of the suction device main body 8 to position the suction port 9 at a constant distance from the surface to be cleaned.

Reference numeral 18 denotes a substantially semi-cylindrical suction joint which rotatably slides on the rear inner surface of the turbine chamber 11, and has a connection port 19 formed in a part of its peripheral wall. The suction joint 18 has a shaft 2o protruding from its side wall and a hollow shaft 21 connected to the turbine chamber 11.
It is rotatably supported on the side wall 22 of Reference numeral 23 denotes a connection tube rotatably attached to the connection port 19 via a ring 24, to which an extension tube communicating with the suction side of the vacuum cleaner via a hose is detachably connected.

A turbine 26 is provided in the turbine chamber 11 and has a part of its outer periphery surrounded by the suction joint 18. The shaft body 26, which penetrates the hollow shaft 21 of the suction joint 18 and projects to the outside of the turbine chamber, is supported by a bearing 27. There is. The turbine 26 is supported by the suction tool main body 8 via this bearing 27. A belt 3o for power transmission is stretched between a small pulley 28 formed at the tip of the shaft body 26 and a dog pulley 29 formed at one end of the rotating brush 13, and the rotation of the turbine 26 is This is so that the speed is decelerated and transmitted to the rotating brush 13. Two vent holes 31 and 32 are formed in the partition wall 12, one vent 31 is for passing airflow that drives the turbine 26, and the other vent 32 is for passing airflow that bypasses the turbine 26. ing. The turbine 26 has two turbine bodies 25a.

2sb, each of which is attached to the shaft body 26. Then, the two turbine bodies 25a, 25
When mounting the parts b at the same time, the so-called open ends, which are not closed by the side plates 25a' and 25b', are butted against each other. 33 is a bushing nut to prevent removal, 34.3
In order to integrate the turbine bodies 25a and 25b in the rotational direction, reference numeral 5 denotes a concave portion and a convex portion that engage each other and are formed on opposing surfaces of the turbine bodies 25a and 25b. Reference numeral 36 denotes a switching lever equipped with a shielding plate 37 for shielding a vent 32 not facing the turbine 26, and is biased in one direction by a spring 38.

39 is the switching lever 3 in the operating state resisting the spring 38.
This is a leaf spring that holds 6.

In the above configuration, when the switching lever 36 is slid to the right in FIG. The fluid collides with the fluid to rotate it, and also drives the rotating brush 13 via the belt 30, and then flows through the connection port 19 of the suction joint 18, the connection tube 23, the extension pipe, and the hose to reach the vacuum cleaner.

When using a high-performance vacuum cleaner, install only one turbine body 25a as shown in Figures 1 and 3 to reduce the amount of airflow collision and prevent the rotational speed from increasing excessively. I can do it.

Further, when using a vacuum cleaner with low performance, a rotation speed above a certain level can be obtained by installing two turbine bodies 25a and 25b.

That is, according to this embodiment, it is possible to adjust the dust collection performance to be sufficient even when used not only with a vacuum cleaner having normal performance but also with a vacuum cleaner with low performance.

Furthermore, by changing the turbine diameter and number of blades, more diverse adjustments can be made.

Next, FIG. 6 shows an example in which a side plate 4o is detachably attached to the open end of one turbine body 25a. Reference numeral 41 denotes a convex portion that protrudes from this side plate 40 to engage with the concave portion 34 of the turbine main body 25a.

In the above configuration, if the side plate 40 is not provided, the airflow will flow out from the open end of the turbine body 25a, resulting in low rotation, and conversely, if the side plate 4o is attached, the airflow will no longer flow out, resulting in high rotation.

Therefore, a low-speed type is suitable for a high-performance vacuum cleaner, and a high-speed type is suitable for a low-performance vacuum cleaner.

Effects of the Invention As is clear from the above embodiments, the vacuum cleaner suction device of the present invention can easily and inexpensively adjust the rotation speed of the turbine in response to various performances of vacuum cleaners mounted on the tower. So,
It provides the necessary durability and dust collection performance no matter what kind of vacuum cleaner it is used in, and eliminates the need to adjust the vent area, eliminating the cause of high-frequency sound, and has extremely large industrial value. It is something.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a suction device showing an embodiment of the present invention with the upper member removed, Fig. 2 is a sectional view, Figs. FIG. 6 is a partially cutaway top view of a conventional example, and FIG. 7 is a perspective view of the turbine. 13... Rotating brush, 26... Turbine, 25a. 26b... Turbine body, 31 Mountain... Vent, 4°... Side plate. Name of agent: Patent attorney Toshio Nakao and 1 other person, p Figure 3' Figure 4 6q 25α

Claims (1)

[Claims] It has a built-in turbine that is rotated by the intake air of a vacuum cleaner, a vent provided opposite to this turbine through which the intake air flows, and a rotating brush that works in conjunction with the turbine. A suction tool for a vacuum cleaner that is formed by a combination of the following and whose rotation speed can be adjusted.