JPH0790001B2 - Vacuum cleaner suction body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is attached to the tip of a suction pipe such as an extension pipe,
In particular, the present invention relates to a suction port of a vacuum cleaner equipped with a beater suitable for sucking dust such as a duvet, a blanket, a cushion, and a sheet.

(Prior Art) Conventionally, for example, a structure shown in FIGS. 5 to 7 is known as a suction port body of an electric vacuum cleaner suitable for cleaning a futon or the like.

In the suction port body of the electric vacuum cleaner shown in FIG. 7, only the suction air passage 2 is opened on the lower surface of the suction port body case 1 without providing a beater.

However, since the dust shown in FIG. 7 is not easily detached from the futon, the dust cannot be sucked in smoothly and the cleaning efficiency is low.

The suction port body of the electric vacuum cleaner shown in FIG. 5 is located on the lower surface of the suction port body case 1 before and after the opening 3 of the suction air passage 2 and rotatably supports the beaters 4, 4 respectively. ing.

However, the one shown in FIG.
Since both ends of are rotatably supported by the suction case body 1, the surface to be cleaned such as a futon is soft, and if there are many uneven surfaces, the beaters 4 and 4 cannot follow the unevenness of the surface to be cleaned,
There is a problem that the dust adhering to the futon cannot be knocked out entirely and cleaning efficiency is low.

On the other hand, in the suction port body of the electric vacuum cleaner shown in FIG. 6, the beater 5 is rotatably supported in the opening 3 of the suction air passage 2 of the suction port body case 1.

However, in the one shown in FIG. 6, both ends of the beater 5 are rotatably supported by the suction port body case 1, so that the surface to be cleaned such as a futon is soft and the surface to be cleaned has many uneven surfaces. Since the beater 5 cannot follow the unevenness of the surface and the dust adhering to the futon cannot be completely blown out, the cleaning efficiency is reduced and the beater 5 is arranged in the opening 3 of the suction air passage, so There is a problem that the area of the opening 3 of the air passage is large and the suction force by suction is large, so that the running property of the suction port body is poor.

(Problems to be Solved by the Invention) As described above, in the suction port body of the electric vacuum cleaner shown in FIG. 7, dust adhering to the futon is not easily released and the dust cannot be sucked in smoothly. , The cleaning efficiency is reduced, and the beater 4, in the suction port body of the vacuum cleaner shown in FIG. 5 and FIG.
Since both ends of 5 are rotatably supported by the suction case body 1, the beaters 4 and 5 cannot follow the irregularities of the surface to be cleaned, which has many irregularities such as soft duvet, and the dust adhering to the futon can be ejected. It is not possible to do the entire cleaning, the cleaning efficiency is reduced, and the sixth
In the one shown in the figure, since the beater 5 is arranged in the opening 3 of the suction air passage, the area of the opening 3 of the suction air passage is large and the suction force due to the suction is large, so that the running performance of the suction port body is improved. I have a bad problem.

The present invention has been made in view of the above problems, and an electric cleaning in which the cleaning efficiency is improved by the beater following the irregularities of the surface to be cleaned without closing the suction opening portion on the surface to be cleaned that is soft and has many irregularities. It is intended to provide a suction port body of a machine.

(Means for Solving Problems) A suction port body for an electric vacuum cleaner according to the present invention has a suction port body case in which a narrow width suction opening portion that communicates with a suction air passage and extends in the left-right width direction is formed in a central portion of a lower surface. And left and right beater holders located at both left and right ends of the previous suction opening and pivotally supported independently of each other in the suction opening body case, and left and right before and after the previous suction opening. Both ends of the beater holder are rotatably supported by the beater holder, and a beater forming a pair of front and rear ends having beater protrusions protruding from the lower surface of the suction port body case is provided on the outer peripheral surface.

(Operation) The suction port body of the electric vacuum cleaner of the present invention has a pair of beater holders that are rotatably supported independently of each other in the suction port body case. Since it is pivotally supported, the beater moves vertically following the irregularities of the surface to be cleaned, and each beater is rotated by the contact between the surface to be cleaned and the beater protrusion protruding from the lower surface of the suction port body case, Since the beater protrusion hits the surface to be cleaned by the rotation of the beater, the surface to be cleaned is knocked out entirely and the cleaning efficiency is improved.

(Embodiment) Hereinafter, a configuration of an embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 to 4, 10 is a suction case body,
The suction port body case 10 is formed in a horizontally long substantially rectangular shape with an open lower surface, a suction chamber 11 is formed in the suction port body case 10, and a suction opening 12 communicating with the suction chamber 11 is formed in the suction port body 10. A narrow width is formed in the central portion of the lower surface of the mouth case 10 so as to extend in the left-right width direction. Further, a discharge side connecting pipe 14 communicating with the suction chamber 11 is integrally formed on the upper rear side of the suction port body case 10, and a suction pipe such as an extension pipe is connected to the discharge side connecting pipe 14. It has become.

Then, inside the suction port body case 10, the beater holders 15 and 15 are disposed at both outer ends of the suction opening portion 12, respectively, and the rotations projecting at the inner center portions of these beater holders 15 and 15 are provided. The shaft portions 16 and 16 are rotatably supported by shaft holes 17 and 17 formed on both outer sides of the suction opening portion 12, respectively. Further, shaft holes 18, 18 are formed at the front and rear ends of the inner side surfaces of the beater holders 15, 15 which face each other. Then, in each of the shaft holes 18, 18 of these both beater holders 15, 15, there is a pair of front and rear beaters 20, which are located in front of and behind the suction opening 12 and are respectively arranged in the suction port body case 10. Both end shaft portions 21, 21 of 20 are rotatably supported. Further, on the outer peripheral surface of each of these beaters 20, 20, there is a beater projection 2 which is projected from the lower surface of the suction port body case 10.
2, 22 are projected so that the phases are alternately changed in the axial direction.

The left and right beater holders 15 and 15 are supported by loosely fitting the shaft portions 21 and 21 at both ends of the front and rear beaters 20 and 20 into the shaft holes 18 and 18 of both beater holders 15 and 15 and rotatably supporting them. , 15
Are rotatable independently of each other.

Further, the front and rear portions of the inner surface both ends of the suction port body case 10, engages with the upper edge of each beater holder 15,15, the rib-shaped restricting portion for restricting the rotation range of each beater holder 15,15. twenty three
Are formed. The regulation portion 23 is formed so that the front and rear edges of the suction port body case 10 are regulated within a range in which the beater holders 15 and 15 do not come into contact with the horizontal cleaning surface 24 when the beater holders 15 and 15 are brought into contact with each other. ing.

When the front and rear beaters 20, 20 are placed horizontally on the horizontal surface 24 to be cleaned, the beater projections 22, 22 of the beaters 20, 20 contact the surface 24 to be cleaned and the lower edge 26 of the suction port body case 10. The opening edge 25 of the suction opening 12 is positioned between them. Further, at the maximum rotation position where the beater holder 15 is controlled by the restriction portion 23, the opening edge of the suction opening portion 12 is opened.
The position of the lower edge 26 of the front and rear edges of the suction port body case 10 is substantially aligned with the horizontal position.

Next, the operation of the above embodiment will be described.

First, connect the extension side connected to the main body of the vacuum cleaner (not shown), the suction tube such as a hose to the discharge side connecting tube 14
, The lower surface of the suction case body 10 is brought into contact with a surface to be cleaned such as a futon, and the electric blower built in the electric vacuum cleaner body is driven, the suction opening part of the suction case body 10 is connected.
Dust is sucked in from 12. When the lower surface of the suction port body case 10 is moved along the surface to be cleaned 24, the beater protrusions 22 and 22 protruding from the lower surface of the suction port body case 10 and the surface to be cleaned 2 are removed.
Each beater 20, 20 is rotated by contact with 4, and the beater projections 22, 22 hit the surface 24 to be cleaned by the rotation of the beaters 20, 20 to float and release dust adhering to the surface 24 to be cleaned such as a futon. The air is sucked from the suction opening 12 of the suction chamber 11 of the suction case body 10.

At this time, the beaters 20, 20 are the left and right beater holders 15,
Since 15 are rotatably supported independently of each other, they can move up and down by following the unevenness of the surface to be cleaned 24 that is soft and has many unevenness like a futon. Twenty-four hits will be performed in full. Since the left and right beater holders 15 and 15 can rotate independently of each other, the front and rear beater holders 15 and 15 can rotate in opposite directions, and follow the complicated uneven surface of the surface to be cleaned 24. Therefore, it is possible to ensure that the dust adhering to the surface to be cleaned 24 is floated and released.

Moreover, as shown in FIG. 2 and FIG.
The beater protrusions 22, 22 of 0 project downward from the lower edge 26 of the front and rear edges of the suction port body case 10, and the rotation range of the beater holders 15, 15 is such that the contact portion between the restriction portion 23 and the upper edges of the beater holders 15, 15 is contacted. Therefore, the front and rear edges of the suction inlet case 10 and the opening edge 25 of the suction opening 12 can smoothly travel on the surface to be cleaned 24 without coming into contact with the surface to be cleaned 24.

In the above embodiment, the rotary shaft portions 16 and 16 projecting from the inner center portion of the beater holders 15 and 15 are rotatably supported in the shaft holes 17 formed at both ends of the suction opening 12. However, it is also possible to rotatably support the shaft portions projecting from both ends outside of the suction opening 12 in the shaft holes formed in the inner center portions of the beater holders 15, 15. In addition, these both beater holders 15 and 15 are provided on both sides 2 of the suction inlet body case 10.
It is also possible to rotatably support the shaft 7 formed on either one of the 7 and the beater holders 15 and 15 and the shaft hole formed on the other so as to be rotatable.

(Effects of the Invention) According to the suction port body of the electric vacuum cleaner of the present invention, the pair of beater holders pivotally supported independently of each other in the suction port body case are provided with a pair of front and rear beaters. Since both ends are rotatably supported, the beater can move up and down in accordance with the unevenness of the surface to be cleaned such as a futon, and the surface to be cleaned can be knocked out entirely, improving the cleaning efficiency.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a suction port body of an electric vacuum cleaner showing an embodiment of the present invention, and FIG. 2 is a vertical sectional side view of the suction port body in which the suction port body is inclined rearward, FIG. Is a vertical sectional side view of the same suction inlet body tilted toward the front side, FIG. 4 is a bottom view of the same suction inlet body, and FIGS. 5 to 7 are vertical sectional views of different conventional suction inlet bodies. Is. 10 …… Suction mouth case, 11 …… Suction chamber, 12 …… Suction opening, 15 …… Beater holder, 20 …… Beater, 22 …… Beater protrusion, 23 …… Regulator, 24 …… Horizontal cleaning surface.

Front page continuation (72) Inventor Atsushi Morishita 43 Horiyamashita, Hadano City, Kanagawa Prefecture Inside the Hadano Plant of Tokyo Electric Co., Ltd. (56) References: Development 56-1555 (JP, U) Development 51-154065 (JP, U) Actually open sho-63-145 (JP, U)

Claims (1)

[Claims] 1. A suction port body case having a narrow width suction opening extending in the left-right width direction in the center of the lower surface, the suction port body case being located at both left and right ends of the suction opening. Left and right beater holders that are rotatably supported independently of each other in the body case, and left and right end portions that are located in front of and behind the suction opening are rotatably supported by the beater holder and are attached to the outer peripheral surface. And a pair of front and rear beaters having beater protrusions protruding from the lower surface of the suction port body case.