JPS6056483B2 - Vacuum cleaner suction body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a suction port body for a vacuum cleaner.

Generally, cleaning is done by connecting a suction port body to the tip of an extension pipe, etc., but conventionally, a brush body is installed on the bottom surface of the suction port body so that it can move in and out vertically, or a brush body is fixed in position. There are some types in which the brush body is provided so that it curves due to resistance with the floor surface, and others in which the brush body does not change its vertical position but is held freely rotatable in the front and rear direction due to resistance with the floor surface.

However, in all of these types of brushes, the tip of the brush body bends or rotates backward due to resistance from the floor surface, so when cleaning a paper package, it does not catch on the paper package. However, it is not possible to sufficiently catch and raise thread waste or to repel dust stuck in the paper package. For this reason, a brush body is provided that is tilted so that its tip always faces forward and is movable up and down.
However, when cleaning tatami mats, which have a relatively smooth surface, the brush body bites into the tatami mat, increasing the force that causes the suction port body to slide forward. That is, it is not possible to clean all floor surfaces under suitable conditions. The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a suction port body for a vacuum cleaner that can easily and efficiently clean any floor surface under optimal conditions.

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

1 is a horizontally elongated suction port body.

This suction port body 1 is constructed by assembling an upper body 2 and a lower body 3 while sealing their peripheries with a packing 4 which also serves as a bumper. On the lower surface of the suction port main body 1, parallel to the longitudinal direction thereof are a suction air passage 5 having a U-shaped cross section, and a recess 9 for housing a brush body 8, which is a supporting body with a brush 7 implanted in the base 6. is formed. Furthermore, rollers 10 serving as supports are held on both sides of the front edge side of the lower surface of the suction port main body 1 . A shaft 11 is erected at both ends of the brush body 8, and a knob 13 protruding from a window 12 formed in the upper body 2 is formed on the upper surface. These knobs 1
3 is formed with a locking protrusion 14 that protrudes laterally.
Further, a suction port 15 is formed in the center of the suction port main body 1 and is connected to the suction air path 5, and the rear end of the suction port 15 is connected to a dust collecting section of a vacuum cleaner via an extension pipe or the like. A rotary tube 16, which is a connecting portion, is rotatably fitted. The brush body 8 is urged upward by a spring 17. A support mechanism 18 is provided inside the suction port body 1 to hold the brush body 8 rotatably in a vertical plane, freely fixed at any angle, movable up and down, and adjustable in height. This support mechanism 18 includes support pieces 19 facing both ends of the base 6 of the brush body 8, and the knob 1.
Support plate 2 made of a steel plate facing above the locking protrusion 14 of No. 2
0 and more. This support piece 19 is formed on the lower body 3 of the suction port body 1, and this support piece 19
An elongated hole 21 for holding the shaft 11 of the brush body 8 rotatably within a vertical plane is formed so as to be inclined toward the front edge side of the suction port body 1 as it goes downward. Further, the support plates 20 are screwed in such a manner that they are inclined downward from the rear edge side to the front edge side of the suction port main body 1, and the lower surfaces of these support plates 20 have three grooves on which the locking protrusions 14 are locked. Two locking recesses 22
, 23, 24 are formed. In such a configuration, when the knob 13 is tilted backward, the locking protrusion 14 engages with the locking recess 22 by the force of the spring 17, as shown in FIG.

At this time, the shaft 11 of the brush body 8 is located forward of the locking recess 22 and held in the elongated hole 21 . As a result, the brush body 8 is tilted forward and the brush 7 is separated from the bottom surface of the suction port body 1.
It protrudes with a small dimension of 1. Therefore, the brush 7 that slides the suction port main body 1 forward along the carpet flicks out the lint, etc. stuck in the carpet, but the brush 7 has a small protrusion, so it does not have the effect of flicking out the lint, etc. This can be done effectively, and the force required to slide the suction port body 1 can be small. When the locking protrusion 14 of the knob 13 is locked in the locking recess 23, the brush body 8 is held vertically by positioning the locking recess 23 and the center of the elongated hole 22 in substantially the same vertical plane. , the amount of protrusion of the brush 7 is set to E2, which is larger than e1. In this state, brush 7
The amount of protrusion is too large and it does not fit closely along the floor,
When cleaning relatively hard floor surfaces such as tatami mats and boards, the brush 7 is appropriately elastically curved to effectively collect dust. The force that causes the suction port body 1 to slide is also small. Also, the locking protrusion 14 is connected to the locking recess 24.
When the brush body 8 is engaged with the brush body 8, the brush body 8 is tilted backward, and the amount of protrusion of the brush 7 from the lower surface of the suction port body 1 is determined to be the maximum amount '3'. Therefore, when the suction port main body 1 is slid forward, the brush 7 curves greatly backward, so that the suction port main body 1 can be slid with a soft feel, and is relatively free from lint and other debris. Suitable for cleaning clean carpets. In this way, since the direction and protrusion length of the brush body 8 can be freely changed, it is possible to clean any floor surface under optimal conditions, and it is possible to easily and effectively clean any floor surface with a light force. can.

As described above, in this invention, by grasping the knob that protrudes to the outside and moving the brush body, the inclination angle and position of the brush body can be changed. When cleaning floors, the brush body can be tilted forward to effectively kick out lint, etc. When cleaning other floors, the brush body can be positioned vertically or tilted backwards, thereby removing suction. The mouth body can be slid with light force, and by adjusting the rotation angle and vertical position of the brush body, the direction of the brush body and the length of the protrusion from the suction mouth body can be changed, making it ideal for any floor surface. In addition, by increasing the protruding length of the brush body from the forward tilting position to the backward tilting position, when cleaning carpets, the suction port body can be cleaned efficiently. When cleaning other floor surfaces, the protruding length of the brush body can be increased depending on the type of floor surface to increase the dust collection effect. In this case, since the brush body is located in a vertical or rearwardly inclined position, the resistance against the floor surface is reduced and cleaning can be carried out easily.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a reduced perspective view, Fig. 2 is a reduced perspective view seen from the back side, Fig. 3 is a vertical side view, and Fig. 4 is a view of the brush body. FIG. 5 is a partially enlarged longitudinal sectional side view showing the operation of the brush body, and FIG. 6 is a perspective view of the support plate. DESCRIPTION OF SYMBOLS 1... Suction port body, 5... Suction air path, 8... Brush body, 9... Recessed part, 11... Shaft, 13... Knob, 14... Locking protrusion, 16 ...Rotating tube (connection part), 1
8... Support mechanism, 20... Support plate, 21... Long hole, 22-24 locking recess.

Claims (1)

[Claims] 1. A recess on the lower surface of a horizontally elongated suction port body having a connection part connected to the dust collection part of the vacuum cleaner, which forms a suction air passage communicating with the connection part and houses a brush body with brushes implanted in the base. is formed parallel to the suction air path, a locking protrusion, a shaft, and a knob are formed on the brush body, and the front edge side of the suction port body is formed at a position close to the lower surface of the suction port body as it moves downward. A plurality of springs are provided, the shaft is fitted into the long hole with the knob protruding to the outside of the upper surface of the suction port body, and a spring is provided that biases the shaft upward. A support plate having a locking recess is tilted in the front-rear direction and attached above the suction port body, and the length of the brush of the brush body protruding from the lower surface of the suction port main body from the recess is determined at the minimum protrusion time. At the same time, the locking protrusion of the brush body is placed in one of the locking recesses of the support plate so that the locking protrusion of the brush body becomes larger sequentially from the forward tilted position to the rearward tilted position with its tip in contact with the cleaning surface. A suction port body for a vacuum cleaner, characterized in that the suction port body is selectively locked to the suction port body of a vacuum cleaner.