JPS58457Y2 - Vacuum cleaner suction body - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a suction port body for a vacuum cleaner.

In general, a suction port body for cleaning floors has a horizontally long suction air passage, a ventilation passage located in the center, and a connecting part connected to the dust collection part of the vacuum cleaner. Equipped with a brush.

Types of brushes that appear and appear depending on the type of floor surface are:
An adjuster such as a cam is required in the center of the suction port body to allow the brush to move in and out and to fix it in any position, but the cam is located at the same position as the ventilation path or connection part, and its knob is not protruded to the outside. Therefore, it is difficult to prevent leaks in the intake path.

This idea was created in view of the above points, and it greatly simplifies the mechanism that allows the brush to move in and out and fixes it in any position while preventing leaks in the intake path.It also aims to average the suction force over the entire width. The purpose is to scale the suction port body of a vacuum cleaner, which can prevent a decrease in suction force on both sides.

This idea is based on the fact that the brush that protrudes from the bottom is attached to the suction port body, which is formed by sequentially communicating the suction air path opening at the bottom, the ventilation path located in the center, and the connection part connected to the dust collection part of the vacuum cleaner. A space is formed in the center of the suction port main body and separated from the ventilation path by a partition wall that divides the ventilation path into left and right halves, and the vertical position of the brush is controlled in this space. The present invention is characterized in that an adjuster is provided for fixing the suction port at a desired height, and a knob of the adjuster is made to protrude outside the suction port body.

Therefore, the amount of downward protrusion of the brush is controlled by the adjuster according to the floor surface, but since the adjuster is located in a space isolated from the ventilation path, even if the knob is extended to the outside, the intake path will leak. This prevents a decrease in suction force and simplifies the structure without requiring a complicated sealing mechanism.Furthermore, by dividing the ventilation path into left and right with a partition wall, The suction side of the ventilation passage can be communicated with both sides of the suction air passage, and therefore the suction force can be averaged over the entire width, and with this, the suction force on both outside sides can be maintained constant and dust can be removed from the walls, etc. It is constructed so that it can effectively suck in.

An embodiment of this invention will be described based on the drawings.

Reference numeral 1 designates a suction port body, and this suction port body 1 is constructed by assembling an upper body 2 and a lower body 3 with their peripheral edges sealed by a packing 4 which also serves as a bumper.

A horizontally elongated suction air passage 5 is formed in the lower body 3, an auxiliary roller 6 is provided at the center of the front part, and a horizontally elongated brush 7 is biased upwardly by a spring 8 at the rear bank and moves up and down. It can be inserted freely.

Further, in the center of the suction air passage 5, a suction port 9 having a wide left and right width is formed.

In the center of the upper main body 2 and the lower main body 3, there is formed a partition wall 10 shaped like a letter 0, which can be called a deformed triangular shape that expands rearward, and a partition wall 11 surrounding the partition wall 10. ing.

Therefore, by airtightly fitting or joining the partition wall 10.11 of the upper main body 2 and the partition wall 10.11 of the lower main body 3, the pair of left and right ventilation passages 12 separated by the partition wall 10.11. , a space 13 surrounded by a partition wall 10 and isolated from the ventilation path 12 is formed.

Parts of the partition walls 10, 11 are formed in an arc shape and serve as air guide walls 14, 15 that communicate the suction side of the ventilation passage 12 with both sides of the suction port 9 while expanding in a trumpet shape.

Next, a T-shaped connecting pipe 18 is formed, which is a connecting part in which a horizontal pipe 16 with openings at both ends connected to each of the ventilation passages 12 and a connecting pipe 17 connected to a dust collection part of a vacuum cleaner are integrally formed. and wheels 19 located on both sides thereof.

The horizontal pipe 16 and the wheel 19 are rotatably supported by a semicircular bearing portion 20.21 formed at the joining edge of the upper body 2 and the lower body 3 when the upper body 2 and the lower body 3 are assembled.

A cam 22, which is an adjuster and is connected to the upper surface of the brush 7, is rotatably provided in the space 13.

The knob 23 of the cam 22 projects outward through a slit-shaped opening 24 formed in the upper body 2.

In such a configuration, when the vacuum cleaner is driven, dirt adhering to the floor is removed from the suction air path 5, suction port 9, ventilation path 12,
The air is sucked in in the order of the connecting pipe 18, but since the ventilation path 12 is divided into left and right halves and communicates with both sides of the suction air path 5, the suction force is averaged over the entire width and the suction force on both outside sides is maintained above a certain level. This effectively sucks up lint tangled on the sides and debris from walls.

In addition, the suction port 9 is wide and the ventilation passage 12 has two paths, left and right, so the intake air flow is not suddenly constricted, and the connecting pipe 18 moves up and down to prevent the suction port body 1 from floating off the floor. However, the cross-sectional area of the air passage is always constant and smooth, and turbulence does not occur, thereby making it possible to reduce intake noise.

Since the horizontal pipe 16 is fitted around its entire circumference, leakage at the connecting portion is prevented.

In addition, since the connecting pipe 18 is held at the center of the rear of the suction port body 1, the left and right balance is good, and the horizontal pipe 1
6 and the wheels 19 are arranged on the same axis, the pressing force transmitted from the connecting pipe 18 when moving forward acts on the axis of the wheels 19, and no unreasonable force is applied to the suction port body 1. .

The amount of protrusion of the brush 7 is changed by rotating the cam 22 depending on the type of floor surface, but since the cam 22 exists in the space 13 separated from the ventilation path 12 by the partition wall 10, the knob 23 is not protruded to the outside. Even if the valve is closed, leaks in the intake path can be reliably prevented, and a complicated sealing mechanism can be omitted.

The cam 22 pushes the center of the brush 7, thereby preventing the brush 7 from tilting in the left-right direction.

Further, the cam 22 is located directly above the brush 7, and therefore transmits the pressing force directly to the brush 7, eliminating the need to provide an intermediate transmission member.

This allows the structure to be further simplified.

Since this device is configured as described above, the regulator that controls the protrusion amount of the brush is installed in a space separated from the ventilation path by a partition wall, so even if the knob is protruded outside, there will be no leakage in the intake path. The structure can be simplified by eliminating the need for a complicated seal structure, and by dividing the ventilation path into left and right halves with a partition wall, the ventilation path can be separated from the outside of the suction air path. This allows the suction force to be averaged over the entire width and maintains the suction force on both sides above a certain level, which has the effect of effectively sucking in dust near the wall. It is something.

[Brief explanation of drawings]

The drawings show an embodiment of this invention, in which FIG. 1 is a central vertical sectional side view, FIG. 2 is a plan view of the lower body, and FIG. 3 is a longitudinal sectional front view. 1... Suction port body, 5... Suction air path,
7... Brush, 10... Partition wall, 12
...Ventilation duct, 13...Space part, 18.
...Connection pipe (connection part), 22...Cam (
Adjuster), 23...knob.

Claims (1)

[Scope of utility model registration request] 1. A brush protruding from the bottom surface is urged upward to the suction port body, which is formed by sequentially communicating the suction air path of the bottom opening, the ventilation path located at the center, and the connection part connected to the dust collection part of the vacuum cleaner. A space is formed in the center of the suction port main body to separate the ventilation path from the ventilation path by a partition wall that divides the ventilation path into left and right halves, and the vertical position of the brush can be adjusted to an arbitrary height in this space. 1. A suction port body for a vacuum cleaner, characterized in that an adjuster is provided to be fixed to the suction port body, and a knob of the adjuster is protruded to the outside of the suction port body. 2. The suction port body for a vacuum cleaner according to claim 1, wherein the brush and the regulator are located on the same vertical plane.