JPH0739738U - Vacuum cleaner suction end member - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is a suction end member with a brush that is detachably attached to the end of the suction pipe of an electric vacuum cleaner,
The purpose is to prevent the brush from being drawn by the air flow and bending to cover the suction port during use. A suction end member detachably attached to a tip of a suction pipe of an electric vacuum cleaner, in which a downwardly facing brush 2 is provided on an upper outer periphery of a vertically extending suction end 1, and the tip of the brush 2 is The suction end portion 1 projects ahead of the tip 3 of the suction end portion 1, and the suction end portion 1 has a double structure in which an inner cylinder portion 5 is provided inside the outer cylinder portion 4 with a space therebetween. The first suction passage 7 formed forwardly of the outer tubular portion 4 and formed by the inner tubular portion 5 and the second suction passage 8 formed between the inner tubular portion 5 and the outer tubular portion 4 are It is characterized by communicating with the upper part of.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to a suction end member of a vacuum cleaner used at home.

[0002]

[Prior art]

 In the conventional suction end member, a downward brush is provided so as to surround the outer circumference of the suction end portion having the suction port, and the tip of the brush is configured to project ahead of the tip of the suction end portion. Was a single cylindrical pipe.

[0003]

[Problems to be solved by the device]

 Since the suction end member of the conventional vacuum cleaner has the above-described structure, when the dust is actually sucked in, the brush bends so as to be covered by the flow of the air sucked into the suction port and covers the suction port. However, there is a drawback that the suction force is weakened.

[0004]

[Means for Solving the Problems]

 The structure of the present invention is a suction end member that is detachably attached to the tip of a suction pipe of an electric vacuum cleaner, in which a downwardly facing brush 2 is provided on the upper outer periphery of a vertically extending suction end portion 1, and a brush 2 Has a double structure in which the inner tubular portion 5 is provided inside the outer tubular portion 4 with a space therebetween, and the inner tubular portion Reference numeral 5 projects ahead of the outer tubular portion 4 and forms a first suction passage 7 formed by the inner tubular portion 5 and a second suction passage 8 formed between the inner tubular portion 5 and the outer tubular portion 4. Are characterized by communicating at the top of them.

[0005]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. Reference numeral 9 is a joint pipe portion for connecting the suction end member 10 to the suction pipe of the electric vacuum cleaner, and has a mounting portion 11 for mounting the outer cylindrical portion 4 and the brush 2 at the end portion thereof. There is. Long brushes 2 are arranged and attached so as to form a circle on a portion of the lower surface of the attachment portion 11 near the outer periphery. Since the brushes 2 are mounted so as to be arranged slightly inside the outer periphery of the mounting portion 11, the shape of the arranged brushes 2 is substantially the same as the cross-sectional shape of the mounting portion 11. Therefore, if the mounting portion 11 has a circular cross-sectional shape as in the embodiment, the brushes 2 are likewise arranged and mounted in a circular shape, but the mounting portion 11 of the present invention has a circular sectional shape. For example, when the mounting portion 11 has a quadrangular shape or an elliptical sectional shape, the brushes 2 are arranged in a corresponding shape, and the suction end portion 1 has a similar sectional shape.

A double-structured suction end 1 is provided inside the brush 2. The suction end portion 1 has a double structure of an outer tubular portion 4 and an inner tubular portion 5, and the outer tubular portion 4 is attached to a mounting portion 6 so as to communicate with the joint pipe portion 1. The outer tubular portion 4 is made of a flexible synthetic resin and has a length shorter than that of the brush 2. Further, inside the outer tubular portion 4, an inner tubular portion 5 is attached so as to form a double structure with the outer tubular portion 4 with a space therebetween. The tip of the inner tubular portion 5 projects further than the tip of the outer tubular portion 4. The inner tubular portion 5 is attached by fixing the flange-shaped base portion 6 to the inner surface of the outer tubular portion 4. A hole 12 is provided in the flange-shaped base 6. The inner tubular portion 5 is preferably made of a flexible synthetic resin like the outer tubular portion 4, but the material of the both tubular portions 4 and 5 is not limited to this, and a hard synthetic material is used. Even resin or the like can be used.

Since the suction end portion 1 has the double structure as described above, the inner tubular portion 5 independently forms the first suction passage 7. A second suction passage 8 is formed between the inner tubular portion 5 and the outer tubular portion 4. As described above, since the inner tubular portion 5 projects ahead of the outer tubular portion 4, the suction port of the first suction passage 7 and the suction port of the second suction passage 8 are not at the same position, The suction port of the suction passage 8 is retracted from the suction port of the first suction passage 7. Therefore, the air sucked into the joint pipe portion 9 is sucked from the suction port of the first suction passage at the tip of the suction end portion 1 and also from the suction port of the second suction passage 8 in the middle of the suction end portion 1. Is also inhaled.

[0008]

[Effect of device]

 The present invention is configured as described above, and the suction end portion 1 has a double structure in which the inner tubular portion 5 is provided inside the outer tubular portion 4 with a space therebetween, and the suction port of the first suction passage 7 is provided. The suction port of the second suction passage 8 is not at the same position, and the suction port of the second suction passage 8 is set back from the suction port of the first suction passage 7. If the suction port of the suction end 1 is a single one, when the dust is sucked during use, the brush 2 is bent by the flow of air sucked into the suction port and covers the suction port. , The suction force is extremely weakened. At this time, the brush 2 is bent so that the middle part thereof is swollen outward so as to cover the suction port. However, in the present invention, since the second suction passage 8 is located in the middle of the suction end portion 1, the air sucked from the second suction passage 8 has a function of pulling the swollen portion of the brush 2 toward the center. As a result, the brush 2 becomes almost straight, so that it is possible to prevent the brush 2 from blocking the suction port of the first suction passage 7.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention with a brush partially removed.

FIG. 2 is a sectional view showing a structure of a suction end portion.

FIG. 3 is a sectional view taken along line AA.

[Explanation of symbols]

1 suction end 2 brush 3 tip of suction end
4 Outer Cylinder 5 Inner Cylinder 6 Base of Inner Cylinder 7 First Suction Passage 8 Second Suction Passage 9 Joint Pipe 10
Suction end member 11 Mounting part 12 Hole

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiko Mukai, 5-14-1 Tozai, Nagano, Asanan-ku, Hiroshima-shi, Hiroshima

Claims (1)

[Scope of utility model registration request] 1. A suction end member removably attached to a tip of a suction pipe of an electric vacuum cleaner, wherein a downwardly facing brush 2 is provided on an upper outer periphery of a suction end portion 1 extending in a vertical direction,
The tip of the brush 2 projects further than the tip 3 of the suction end portion 1, and the suction end portion 1 has a double structure in which an inner cylinder portion 5 is provided inside the outer cylinder portion 4 with a space therebetween. , Inner tube 5
The first suction passage 7 formed by the inner tubular portion 5 and the second suction passage 8 formed between the inner tubular portion 5 and the outer tubular portion 4 project ahead of the outer tubular portion 4. Suction end member of vacuum cleaner characterized in that they communicate with each other at their upper part