JP2014212828A - Suction tool of vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction tool of a vacuum cleaner capable of collecting dust efficiently even when a clearance between a bottom surface and a floor surface forming a suction port is varied due to a level difference or inclination of the floor surface.SOLUTION: A suction tool 5 of a vacuum cleaner for sucking rubbish or dust is configured by including: a front suction tool 9 having a suction port 6 and a roller 14; and a rear suction tool 13 having the roller 14. The front suction tool 9 and the rear suction tool 13 are connected to each other so that they are movable in a vertical direction, and even when the rear suction tool 13 runs on to a step, the front suction tool 9 moves vertically, and the front suction tool 9 can keep a state parallel to the floor surface.

Description

  The present invention relates to a suction tool for a vacuum cleaner.

Conventionally, in order for this type of vacuum cleaner suction tool to prevent the floor surface from being damaged, a roller is provided so that the floor under the suction port does not contact the floor surface. Alternatively, a lip body composed of a brush or a rubber body is provided after the suction port so that the floor below is not installed on the floor surface (see, for example, Patent Document 1). In addition, there is a structure in which a lip body composed of a brush or a rubber body is formed before and after the suction port. (For example, see Patent Document 2)
FIG. 5 shows a conventional suction tool described in Patent Document 1. As shown in FIG. As shown in FIG. 5, the suction tool 101 includes a suction port 102, a moving roller 103, a movable brush 104 behind the suction port 102, an underfloor 106 having a fixed lip 105, and a floor covering the underfloor 106. 107, and a pipe 108 rotatably held by an underfloor 106 and an upper floor 107.

Japanese Utility Model Publication No. 63-048550

  However, in the conventional configuration, the bottom surface of the floor 106 is configured to be substantially parallel to the floor surface without contacting the floor surface by the moving roller 103 and the brush 104, but there is a step on the floor surface. When only the moving roller 103 rides on the step, the under floor 101 and the floor surface cannot be kept substantially parallel. The suction tool 101 sucks dust on the floor surface from the suction port 102. In order to suck the dust, it is more efficient to increase the negative pressure generated by the cleaner body near the suction port 102. Although it is possible to suction, the fact that the floor 106 and the floor surface are not kept parallel as described above is that the gap between the floor 106 and the floor surface is partially increased, and the pressure near the suction port 102 drops, As a result, there has been a problem that dust cannot be sucked efficiently.

  The present invention solves the above-described conventional problems, and the floor surface and the floor surface are always kept in parallel without causing damage to the floor surface due to the bottom surface under the floor, so that dust on the floor surface can be sucked more efficiently. An object of the present invention is to provide a vacuum cleaner suction tool with improved performance and usability.

  In order to solve the above-mentioned conventional problems, the suction tool of the vacuum cleaner of the present invention is a front of the suction tool composed of a front of the floor provided with a suction port for sucking dust and a front of the floor covering the front of the floor, In the suction tool having the rear of the suction tool composed of a pipe that is rotatably held behind and above the floor, the front of the suction tool is movably attached after the suction tool.

  As a result, the front of the suction tool having the suction port is movably attached so that even if the rear of the suction tool rides on the step on the floor, the positional relationship between the floor under the suction tool and the floor does not change. No change in pressure around the mouth. In this way, the pressure around the suction port does not change due to steps on the floor, etc., and the pressure around the suction port can always be kept constant, thereby improving the ability to suck more dust from the floor more efficiently. A vacuum cleaner suction tool can be provided.

  The suction tool of the present invention is not affected by the level difference on the floor surface, and can more efficiently suck dust on the floor surface and improve the performance.

Overview of the electric vacuum cleaner according to Embodiment 1 of the present invention The perspective view of the suction tool in Embodiment 1 of this invention (A) in Embodiment 1 of the present invention is a cross-sectional view of a suction tool with a flat floor surface (b) is a cross-sectional view of a suction tool with a step on the floor surface (A) in Embodiment 2 of the present invention is a cross-sectional view of the suction tool in a state where the floor surface is flat (b) is a cross-sectional view of the suction tool in a state where the floor surface is inclined Cross-sectional view of a conventional suction tool

  In the first embodiment, in order to solve the above-described conventional problems, the suction tool of the vacuum cleaner of the present invention is configured with an underfloor provided with a suction port for sucking dust and an upper underfloor covering the underfloor. In a suction tool having a suction tool composed of a pipe held in front of the suction tool and a pipe that is rotatably held under the floor and after the floor, the front of the suction tool is attached movably after the suction tool. It is a thing.

  As a result, the front of the suction tool having the suction port is movably attached so that even if the rear of the suction tool rides on the step on the floor, the positional relationship between the floor under the suction tool and the floor does not change. No change in pressure around the mouth. In this way, the pressure around the suction port does not change due to steps on the floor, etc., and the pressure around the suction port can always be kept constant, improving the ability to suck more dust on the floor more efficiently It is.

  In addition, the second embodiment is particularly configured in the first embodiment in such a manner that a groove portion is provided before and after the suction tool, and is attached so as to be movable up and down, and the same effect of the first invention is obtained. As well as being obtained, by limiting the operation to a simple top and bottom, the operation before the suction tool is ensured, and the performance of sucking more dust on the floor surface more efficiently can be improved.

  In addition, the third embodiment is particularly configured in the first or second embodiment in which the front of the suction tool and the rear of the suction tool are rotatably attached by a connecting member made of a soft material. The same effects as those of the first and second inventions can be obtained, and by rotating, it is possible to cope with not only the step but also the inclination of the floor surface. It is possible to improve the performance of sucking more efficiently.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a schematic view of the electric vacuum cleaner according to the first embodiment of the present invention, FIG. 2 is a perspective view of the suction tool, and FIG. 3 is a sectional view of the suction tool.

  In FIG. 1, 1 is an electric vacuum cleaner main body incorporating an electric blower (not shown) for generating suction air, and is connected to the electric vacuum cleaner main body 1 and has a hose 3 having a handle 2 operated by a user, An extension pipe 4 connected to the handle 2 and a suction tool 5 are formed on the opposite side of the extension pipe 4 to which the handle 2 is connected.

Next, in FIGS. 2 and 3, the suction tool 5 includes a front under floor 7 that forms a suction port 6, a front suction floor 9 configured to cover the front under floor 7 from above, a rear bottom 10, and a rear top 11. The rear part 13 is composed of a pipe 12 that is rotatably held by the pipe 12, and a moving roller 14 that is rotatably held is pivotally supported by the front floor 7 and the rear floor 10.

  The suction tool front 9 and the suction tool rear 13 are fitted in the groove portion 15 so as to be movable up and down.

  About the suction tool 5 of the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, as shown in FIG. 3 (a), the suction port 6 is connected to a suction passage 16 constituted by a front under floor 7, a front front 8, a rear bottom 10, a rear top 11, and a pipe 12. The suction passage 16 is shown in FIG. Are connected to the cleaner body 1 through the extension pipe 4, the handle 2, and the hose 3. Thereby, the suction wind generated by the electric blower can be transmitted to the suction port 6 of the suction tool 5.

  The dust on the floor surface is sucked up to the suction port 6 by the force of this suction air and the negative pressure generated by the suction air passing between the front floor 7 and the floor surface.

  Next, the roller 14 is in contact with the floor surface, so that a certain gap (A) is maintained in parallel between the bottom surface of the front under floor 7 and the floor surface. Reducing the gap (A) increases the negative pressure generated when the suction air passes through the gap A and increases the force for sucking up dust on the floor.

  Next, as shown in FIG. 3 (b), even if there is a step (B) on the floor and the roller 14 provided under the floor 10 rides on the step (B), the front 9 of the suction tool moves downward. Therefore, since the distance of the gap (A) between the bottom surface of the floor 7 and the floor surface does not change, the same suction performance as the gap (A) in the state where there is no step (B) on the floor surface in FIG. Can be ensured, and high performance can always be maintained without being influenced by the state of the floor surface.

(Embodiment 2)
FIG. 4 is a cross-sectional view of the suction tool according to the second embodiment of the present invention.

  As shown in FIG. 4 (a), the suction tool front 9 and the suction tool rear 13 are connected by a connecting body 17 made of a soft material, and the suction tool front 9 is configured to be rotatably attached to the suction tool rear 13. Is.

About the suction tool of the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.
As shown in FIG. 4A, when the floor surface is flat, as described in the first embodiment of the present invention, the bottom surface 7 and the floor surface of the front under floor 7 are kept in parallel with the gap (A).

  Next, even on the floor surface having both the flat portion and the inclined portion, as shown in FIG. 4B, the front 9 of the suction tool is located on the inclined portion and the rear 13 of the suction tool is located on the flat portion. The front 9 of the suction tool is rotated by the configured connecting body 17 and the rollers 14 provided on each of them are in contact with the floor surface, and the gap (A) between the bottom surface of the front floor 7 and the floor surface is flat as shown in FIG. Since there is no change compared with the gap (A) on the floor surface, the suction performance without inclination can be ensured, and high performance can always be maintained without being influenced by the state of the floor surface.

In the first and second embodiments of the present invention, the vacuum cleaner has the handle 2, the hose 3, and the extension pipe 4. However, the suction tool formed under the cleaner main body, the pipe extending from the upper part of the main body, the handle portion A vertical vacuum cleaner. The same effect can be obtained with a suction tool of a hand-held vacuum cleaner.

  In the present invention, the suction tool has two moving rollers in the front and two in the rear. However, the same effect can be obtained even if the suction tool has no moving roller, only the front or only the rear. It is done. Is.

  As described above, the suction tool of the vacuum cleaner according to the present invention sucks up dust from the floor surface because the gap between the bottom surface and the floor surface forming the suction port does not change due to a difference in level or inclination of the floor surface. Since the performance can be kept constant in a high state, it can be suitably used in the fields and applications of household vacuum cleaners and industrial vacuum cleaners that use an electric vacuum cleaner suction tool.

5 Suction tool 6 Suction port 7 Before the floor 8 Before the floor 9 Before the suction tool 10 After the floor 11 After the floor 12 Pipe 13 After the suction tool 14 Roller 15 Groove 16 Suction passage 17 Connector

Claims (3)

  Suction tool composed of a front of the floor composed of a front of the floor provided with a suction port for sucking dust, a front of the floor covering the front of the bottom of the floor, and a pipe rotatably held by the rear of the floor and the rear of the floor The suction tool of the vacuum cleaner characterized by the above-mentioned. The suction tool which has the back, The said suction tool was attached so that movement was possible after the suction tool.   The suction tool for a vacuum cleaner according to claim 1, wherein a groove portion is provided before and after the suction tool, and is attached to be movable up and down.   The suction tool for a vacuum cleaner according to claim 1 or 2, wherein the suction tool is attached in a rotatable manner by a connecting member made of a soft material before and after the suction tool.

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