JPH04261630A - Nozzle for electric vacuum cleaner - Google Patents

Abstract

PURPOSE:To clean the surface and at the root of pile as well of a carpeted floor surface efficiently by a method wherein the bottom surface of a nozzle is formed into a roof shape with two bottom surfaces of which the edge is the central line which is rectangular to the nozzle advancing direction, and the nozzle is constituted to be tiltable to a suction pipe by the advancing direction of the nozzle. CONSTITUTION:The bottom surface of a nozzle 10 is formed being divided into a front bottom surface 12 and a rear bottom surface 13, which are formed into a roof shape of which an edge 11 is the central line which is rectangular to the advancing direction of the nozzle, and suction bodies 3 with a vessel-shaped cross section, which are equipped with air suction holes 4, are arranged on the bottom surfaces, and the nozzle 10 is fastened to a suction pipe 2 by a rotary shaft 14 and a bellows-shaped cover 15, in such a manner that the nozzle can tilt to the suction pipe 2 in the longitudinal direction. Therefore, when the nozzle 10 is pulled this way, the bottom surface 13 comes into contact with a floor surface, and the bottom surface 12 separates from the floor surface, and when the nozzle 10 is pushed forward, the bottom surface 12 comes into contact with the floor surface, and the bottom surface 13 separates from the floor surface. When a carpeted floor surface is cleaned, by operating a blower, the suction bodies 3 on the bottom surface, which are in contact with the floor surface, suck dirt and dust adhered at the root of pile, and the suction bodies 3 which are away from the floor surface suck dirt and dust on the surface of a carpet 7.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle for a vacuum cleaner.

0002

[Prior Art] Research has progressed over many years regarding the nozzles used in vacuum cleaners, and now nozzles with different structures are used to suit the specifications of each floor, such as wooden floors, tatami floors, or carpeted floors. It is configured.

[0003] Among various types of floors, carpet floors have piles, so dirt and hair are particularly likely to adhere to them, and it is difficult to remove them. Particularly recently, carpets with particularly long piles have become popular in households, but it is extremely difficult to collect the dirt that accumulates at the base of the long piles with a regular vacuum cleaner nozzle, so a special Nozzles have also been developed. Figure 3 is a cross-sectional view of a vacuum cleaner developed for cleaning long-pile carpets, Figure 4 is a partially enlarged view, and Figure 5 is an enlarged view of a protrusion. 3 is a nozzle, 3 is a protrusion with holes 3a, 4 is a rotating brush, 5 is a dust collection bag,
6 is the air flow, 7 is the carpet, and 7a is its pile. This vacuum cleaner has a nozzle 2 with a large number of protrusions 3 arranged orthogonally to the moving direction of the nozzle. When cleaning a carpet with a long pile 7a, the tips of the protrusions 3 are
The purpose is to reach the root of the bristles 7a and collect dirt and the like by suctioning them through the hole 3a.

0004

[Problem to be Solved by the Invention] However, when cleaning is attempted using a nozzle equipped with the protrusion described above, the long hair of the carpet comes into contact with the protrusion 3 disposed on the nozzle 2, causing the nozzle 2 to move. This creates a large resistance to the movement of the nozzle 2, making it very difficult to move the nozzle 2, and it is practically difficult to clean while pushing and moving the nozzle 2.

[0005] Furthermore, even if the nozzle 2 can be moved on the carpet floor, the nozzle 2 is
Although it is possible to inhale and collect dirt and hair that adhere to the vicinity of the root of a, that is, the deep part of the bristles 7a, it is not necessarily effective in collecting dirt and the like that adhere to the surface of the bristles 7a. . Therefore, in order to completely collect dust on the surface of the pile, it is necessary to replace the nozzle with a separate nozzle for cleaning general floor surfaces, which increases the effort required for cleaning.

[0006] The present invention was made to solve the above-mentioned problems of conventional vacuum cleaners for cleaning long pile carpets. The present invention aims to provide a nozzle that can efficiently clean the surface of the feet.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the nozzle of the vacuum cleaner according to the present invention has a bottom surface of the nozzle main body with a ridge line in a direction perpendicular to the direction of movement of the nozzle at approximately the center of the bottom surface. The suction body is formed into a roof shape with two bottom surfaces, and each bottom surface is equipped with a suction body with a boat-shaped cross section that tapers forward and backward in the direction of nozzle movement, and the bottom surface is configured to tilt relative to the suction pipe depending on the direction of movement of the nozzle. .

[0008]

[Operation] When cleaning a carpet floor by attaching the nozzle configured as above to a vacuum cleaner, when you press the nozzle, the front bottom of the nozzle will touch the floor, and the rear bottom will touch the floor. Leave. Therefore, when the nozzle is pushed, the suction body provided on the front bottom side suctions and collects dirt adhering to the base of the bristles, and the rear suction body on the bottom side sucks up dirt adhering to the surface of the bristles. Also, when you pull the nozzle toward you, the rear bottom of the nozzle touches the floor and the front bottom leaves the floor. In other words, each time you push or pull the nozzle during cleaning, one of the nozzle's two bottom surfaces comes into contact with the floor surface, the other bottom surface leaves the floor surface, and one side collects dirt deep in the carpet pile. When the carpet is in use, the other one will collect the dirt on the carpet surface. As a result, one nozzle suctions and collects the dirt that has accumulated deep within the pile of the carpet floor and the dirt that adheres to the surface of the pile.

[0009]

[Embodiment] Fig. 1 is a sectional view of a vacuum cleaner nozzle showing an embodiment of the present invention, and Fig. 2 is a back view thereof, in which 2 is a suction pipe, 3 is a suction body, 4 is an air suction hole, 7 is a carpet floor, 7a is a pile, 6 is an air flow, 10 is a nozzle, 11 is a ridgeline, 12 is a front bottom surface, 13 is a rear bottom surface, 14 is a rotating shaft, 15 is a bellows-shaped cover, 16, 17 is the traveling direction of the nozzle.

As shown in the figure, the vacuum cleaner nozzle 10 according to the present invention has a front bottom surface 12 which is formed into a roof shape with the center line of the bottom surface perpendicular to the direction of movement of the nozzle being a ridgeline 11. A suction body 3 having a boat-shaped cross section and air suction holes 4 is arranged on each of the bottom surfaces, and the main body of the nozzle 10 formed in this way is rotated. It is attached to the suction pipe 2 so as to be tilted back and forth by a bellows-shaped cover 15 for blocking air from the shaft 14.

Therefore, when cleaning the nozzle 10, when the nozzle 10 is pulled toward the front, the rear bottom surface 13 comes into contact with the floor surface, and the front bottom surface 12 leaves the floor surface, as shown by the solid line in FIG. When pressed, the front bottom surface 12 comes into contact with the floor surface, and the rear bottom surface 13 leaves the floor surface, as shown by the dashed line in FIG.

[0012] When cleaning a long pile carpet floor,
When the blower of the main body of the vacuum cleaner is operated, the suction body 3 on the bottom in contact with the floor sucks up dirt adhering to the deep part of the pile, and the suction body 3 leaving the floor sucks the dirt on the surface of the carpet 7. Therefore, during cleaning, by moving the nozzle 10 back and forth, it is possible to suction and collect the dirt accumulated at the base of the long bristles, and also to collect the dirt adhering to the surface of the bristles. In other words, with one nozzle 10, both the deep part and the surface of the long pile of the carpet can be cleaned at once.
Greatly improves cleaning efficiency.

Note that the angle formed by the two bottom surfaces 12 and 13 is not limited to that of this embodiment, and may be determined as appropriate. Further, the specifications of the suction body 3 are not limited to those of this embodiment.

Further, the method for tilting the bottom surfaces 12 and 13 of the nozzle 10 is not limited to the one in this embodiment using the rotary shaft 14 and the bellows-shaped cover 15, and other methods may be adopted.

[0015]

Effects of the Invention According to the present invention, the bottom surface of the nozzle of a vacuum cleaner is formed into a roof shape having two bottom surfaces whose ridgeline is the center line perpendicular to the traveling direction of the nozzle on the bottom surface. By arranging the suction bodies each having a boat-shaped cross section, and by pushing or pulling the nozzle, either of the two bottom surfaces mentioned above will come into contact with the floor surface, so by moving the nozzle back and forth during cleaning, the above two One of the bottom surfaces of the carpet comes into contact with the floor surface while the other bottom surface leaves the floor surface, and as a result, both the dirt at the root of the carpet with long piles and the dirt on the surface of the pile are collected in one nozzle. It became possible to suction and collect all the materials all at once, which had the excellent effect of greatly improving cleaning efficiency.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a nozzle of a vacuum cleaner for cleaning a carpet floor, showing an embodiment of the present invention.

FIG. 2 is a back view thereof.

FIG. 3 is a sectional view of a conventional vacuum cleaner.

FIG. 4 is a partial sectional view thereof.

FIG. 5 is an enlarged view of a protrusion.

[Explanation of symbols]

10...Nozzle 11...Ridge line 12...Front bottom surface 13... Rear bottom surface 14...Rotation axis 15...Accordion-shaped cover 16, 17...Nozzle traveling direction

Claims (1)

[Claims] 1. A nozzle for a vacuum cleaner, the bottom of which is formed into a roof shape having two bottoms whose ridgeline is a center line perpendicular to the traveling direction of the nozzle on the bottom,
Suction bodies each having a boat-shaped cross section and an air suction hole are arranged on the bottom surface, and by moving the nozzle back and forth, the bottom surface of the nozzle is configured to tilt back and forth in the direction of nozzle movement with respect to the suction pipe. A vacuum cleaner nozzle characterized by: