JPH0737011U - Vacuum cleaner suction nozzle - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a suction nozzle of an electric vacuum cleaner capable of efficiently cleaning with a small amount of force. A connecting pipe in which a nozzle body 1 is formed in a long and narrow trumpet shape in the front-rear direction, a brush 3 is planted around a suction port 2 opened on the lower surface, and a handle 4 is connected to an upper portion of the nozzle body 1. Since the portion 1a is provided so as to project, the wide range can be easily cleaned with a small amount of force by moving the handle 4 to the left and right, and the suction force is increased to improve the cleaning efficiency.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a suction nozzle of an electric vacuum cleaner that can be efficiently cleaned with a small amount of force.

[0002]

[Prior art]

 Conventionally, a suction-type vacuum cleaner that cleans by sucking dust and the like together with air has a suction nozzle attached to the air suction port. Several types of suction nozzles are prepared in advance according to the place to be cleaned and the purpose of use.By replacing these suction nozzles, it is possible to clean a wide range to a narrow place such as a gap. ing.

Further, when cleaning a relatively wide area, conventionally, as shown in FIG. 1A, a suction nozzle a having a wide width in the left-right direction is attached to the tip of a tubular handle b, and the handle b is attached. The method of cleaning while operating the front and back is generally adopted. On the other hand, when cleaning a relatively narrow place or a gap, the suction nozzle a as shown in (b) of FIG. 1 or (c) of FIG. 1 is replaced and used each time.

[0004]

[Problems to be solved by the device]

 However, in the conventional suction nozzle a having a large width in the left-right direction, since the contact resistance between the brush c planted around the suction port of the suction nozzle a and the floor surface is large, a large force is required to operate the handle. It is necessary to easily get tired, and since it sucks in a large area, the suction force is weak and cleaning efficiency is poor. In addition, when cleaning a narrow space or a gap, the suction nozzle a must be replaced each time, so the operation is troublesome, and it is necessary to carry multiple suction nozzles each time the cleaning place is moved. There was also. The present invention has been made to solve the above problems, and an object thereof is to provide a suction nozzle of an electric vacuum cleaner that can be efficiently cleaned with a small force and does not require replacement.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention forms a nozzle body in the shape of a long and narrow trumpet in the front-rear direction, and implants a brush around the suction port opened on the lower surface and connects it to a handle on the upper part of the nozzle body. The connecting pipe part is provided so as to project.

[0006]

[Work]

 With the above configuration, a wide range can be easily cleaned with a small force by moving the handle in the left-right direction, and the suction efficiency is improved because the nozzle body is elongated to increase suction.

[0007]

【Example】

 An embodiment of the present invention will be described in detail with reference to the drawings shown in FIG. 2 is a side view of the suction nozzle, FIG. 3 is a plan view of the suction port, and FIG. 4 is an explanatory view of operation. In these figures, reference numeral 1 denotes a nozzle body, which has a long and narrow trumpet shape in the front-rear direction, and a suction port 2 is opened on the lower surface. As shown in FIG. 3, the suction port 2 has an oval shape, and the brushes 3 are closely packed in the periphery thereof. The upper part of the nozzle body 1 has a taper whose diameter gradually decreases toward the upper end side. The connecting pipe portion 1a is projecting obliquely upward, and the tubular handle 4 of the electric vacuum cleaner (not shown) is detachably attached to the connecting pipe portion 1a. The nozzle body 1 and the handle 4 may be integrated.

[0008] Next, the operation will be described with reference to FIG. 4. In cleaning a wide range, the handle 4 is moved while moving left and right as shown in FIG. By moving the handle 4 left and right, the shaded area in Fig. 4 can be cleaned at once, and since the area of the suction port 2 is smaller than the conventional suction nozzle that cleans a wide area, a strong suction force can be obtained. It can be obtained and cleaned efficiently. Also, because it is long and narrow in the front-back direction, it can be moved with little force in the front-rear direction, and cleaning of narrow places and gaps can be done by inserting the front end of the nozzle body 1 into narrow places and gaps. No need to replace.

5A to 5C show another embodiment in which casters 6 are attached to the front and rear of the nozzle body 1. That is, as shown in FIG. 5B, at the lower end of the shaft 6b rotatably supported by the guide cylinders 6a inserted in the front and rear of the nozzle body 1, the roller 6c is located at a position eccentric from the center of the shaft 6b. A caster 6 rotatably supported is attached. By providing the casters 6 in front of and behind the nozzle body 1, the contact resistance between the brush 3 and the floor can be reduced, and the nozzle body 1 can be swung to the left and right. The cleaning work can be performed with less force because it becomes easier.

6A and 6B show another embodiment in which the nozzle body 1 is rotatably attached to the handle 4. That is, the end portion of the connecting pipe portion 1a of the nozzle body 1 is widened in a fan shape in the front-rear direction, and the tip end of the flat handle 4 is rotatably pivoted by the pin 7 to the connecting portion 1b. An arc-shaped sealing surface 1c centered on the pin 7 is shown in the connection port 1b so that air does not leak even if the handle 4 is rotated back and forth around the pin 7 as shown in FIG. The semicircular sealing surface 4a formed at the tip of the handle 4 is slidably contacted with the sealing surface 1c. With the above configuration, the handle 4 can be rotated around the pin 7 with respect to the nozzle body 1, so that the angle of the handle 4 can be adjusted according to the place to be cleaned or the height of the user. Since the degree of freedom is increased, the operability is improved.

On the other hand, if the length of the bristles of the brush 3 that is planted around the suction port 2 is lengthened, the feel when holding the handle becomes soft and easy to operate, and when the handle is tilted to the left and right. Since the brush 3 can easily fit into a corner such as a wall, the corner can be easily cleaned. On the other hand, if the bristle of the brush 3 is lengthened, the brush 3 may be entangled with long fibers in the dust, which causes a problem that it takes a long time to remove it.

Therefore, in another embodiment of the present invention, as shown in (a) and (b) of FIG. 7, a belt-like foam elastic layer 10 is formed by foaming a resin such as urethane around the brush bristles 3a of the brush 3. Then, the brush 3 is planted around the suction port 2 together with the elastic foam layer 10 in the form of a strip. As a result, long fibers do not become entangled in the brush bristles 3a even if the bristles of the brush 3 are lengthened, and the work of removing the bristles is not necessary, and the operability of the bristles of the brush 3 is increased. Is further improved.

Further, as shown in FIG. 8, instead of the foamed elastic layer 10, elastic plates 11 made of a thin plate of rubber or the like are attached to both sides of the brush 3 by a means such as adhesion, whereby long fibers or the like are entangled in the brush bristles 3a. The same effect can be expected because it can be prevented.

[0014]

[Effect of device]

 As described in detail above, since the nozzle body is formed to be elongated in the front-rear direction, the device can be moved in the front-rear direction with a small force and can be easily cleaned in a wide range by moving it in the left-right direction. Also, since the suction force is increased by making it elongated in the front-rear direction, the cleaning efficiency is further improved compared to the conventional suction nozzle having a wide width in the left-right direction, and fatigue can be reduced because a wide range can be cleaned in a short time. Furthermore, cleaning of narrow spaces and gaps can be performed without replacing the suction nozzles, which eliminates the need for troublesome replacement work and the need to carry multiple suction nozzles each time the cleaning location is moved. . Moreover, it is economical because all the cleaning is possible with one type of suction nozzle. In addition, when the brush foot is made longer to improve the operability, resin is foamed around the brush hair to form a band-shaped foam. By forming an elastic layer and planting a brush with this foamed elastic layer around the suction port, the long fibers in the dust do not get entangled in the brush bristles, so the long fibers entangled in the bristles There is no need for work such as removing the product over a long period of time.

[Brief description of drawings]

1A to 1C are explanatory views of a conventional suction nozzle.

FIG. 2 is a side view of a suction nozzle according to an embodiment of the present invention.

FIG. 3 is a plan view showing a suction port of a suction nozzle according to an embodiment of the present invention.

FIG. 4 is an explanatory view of the action of the suction nozzle according to the embodiment of the present invention.

FIG. 5 (a) is a sectional view of a suction nozzle according to another embodiment of the present invention. (B) It is an enlarged view in the A circle of (a) of FIG. FIG. 6C is a sectional view taken along the line BB in FIG.

FIG. 6 (a) is a sectional view of a suction nozzle according to another embodiment of the present invention. (B) It is sectional drawing which follows the CC line of (A) of FIG.

FIG. 7 (a) is a plan view showing a suction port of a suction nozzle according to another embodiment of the present invention. (B) It is an expanded sectional view which follows the DD line of (a) of FIG.

FIG. 8 is an enlarged sectional view of a brush portion of a suction nozzle according to another embodiment of the present invention.

[Explanation of symbols]

1 ... Nozzle body, 1a ... Connection pipe part, 2 ... Suction port, 3 ...
Brush, 3a ... Brush bristles, 4 ... Handle, 6 ... Casters, 7 ...
Pin, 10 ... Foamed elastic layer.

Claims (4)

[Scope of utility model registration request] 1. A nozzle body 1 is formed in a slender trumpet shape in the front-rear direction, a brush 3 is planted around a suction port 2 opened on the lower surface, and a handle 4 is provided on the upper portion of the nozzle body 1.
A suction nozzle of an electric vacuum cleaner, which is provided with a connecting pipe portion 1a connected to the above. 2. The suction nozzle according to claim 1, wherein casters 6 are provided in front of and behind the nozzle body 1. 3. The suction nozzle according to claim 1, wherein the tip of the handle 4 is pivotally attached to the connecting pipe portion 1a of the nozzle body 1 by a pin 7 so as to be rotatable in the front-rear direction. 4. A resin is foamed around the brush 3 to form a band-shaped foamed elastic layer 10 including the brush bristles 3a,
4. The suction nozzle according to claim 1, wherein the foam elastic layer 10 is planted around the suction port together with the brush 3.