JPH0580448U - Hose connection device for vacuum cleaner - Google Patents

Abstract

(57) [Abstract] [Purpose] In a hose connecting device for an electric vacuum cleaner, the tip pipe and the hose can be connected and removed freely,
Make it easy to remove debris stuck in the hose. [Structure] A tubular joint portion 7 is joined to the hose 1 with an adhesive 5, a plurality of convex portions 8 are integrally formed on the outer surface of the joint portion 6, and the convex portion 8 is formed on the tubular joint portion 7. Is provided with a recess 9 for engaging with
The convex portion 8 and the concave portion 9 are fitted together. When the hose 1 is separated from the joint 6 of the tip pipe, the cylindrical joint 7 is pulled out while pressing the convex portion 8. Then, by removing the hose 1 from the joint portion 6 of the tip pipe, it is possible to remove dust clogging the hose 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hose connecting device for a vacuum cleaner in which a hose and a tip pipe can be attached and detached.

[0002]

[Prior Art]

 Conventionally, a hose connecting device for this type of vacuum cleaner has a structure as shown in FIG. The configuration will be described below with reference to the drawings. As shown in the figure, the spiral hose 1 is fixed to the joint portion 3 of the tip pipe 2 and covered with a hose cover 4. Since the hose 1 has a spiral bellows shape so that it can be easily bent, if a gap is created between the hose 1 and the joint portion 3, the suction work efficiency is reduced. Is filled with the adhesive 5 and bonded.

[0003]

[Problems to be solved by the device]

 However, in the above conventional configuration, the dust suction passage is largely bent at the tip pipe 2 due to the positional relationship between the grip position of the tip pipe 2 and the floor nozzle or the main body of the cleaner, so that the dust clogging in the hose 1 can be removed. It was difficult, and if you tried to remove the dust by force, there was a problem that the inner surface of the hose 1 would be scratched or punctured.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a hose connection device for an electric vacuum cleaner that can easily remove clogging of dust in the hose.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention joins a hose with a tubular joint having a recess, and integrally forms a plurality of protrusions on the outer surface of the joint. The hose is configured to fit in the recess of the cylindrical joint, and the hose is joined to the cylindrical joint having the ring-shaped protrusion, and the ring-shaped locking rib is provided on the outer surface of the joint. The locking ribs are brought into contact with the protrusions, and the locking ribs and the protrusions are sandwiched by ribs provided integrally with the hose cover.

[0006]

[Action]

 In the above structure, since the convex portion of the joint fits into the concave portion of the cylindrical joint, the hose can be detached from the joint of the tip pipe, and the locking rib can be brought into contact with the protrusion. Since the locking rib and the protrusion are sandwiched between the ribs of the hose cover, the hose can be removed from the joint of the tip pipe by removing the hose cover.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to FIG. In the present embodiment, the same components as those shown in the above-mentioned conventional example are designated by the same reference numerals, and the description thereof will be omitted. The characteristic structure of this embodiment is that the hose 1 and the joint portion 6 described in the conventional example are fitted and connected via a tubular joint portion 7. That is, the tubular joint portion 7 is joined to the hose 1 with the adhesive 5, a plurality of convex portions 8 are integrally formed on the outer surface of the joint portion 6, and the convex portion 8 is formed on the cylindrical joint portion 7. A concave portion 9 to be engaged is provided, and the convex portion 8 and the concave portion 9 are fitted to each other. When detaching the hose 1 from the joint portion 6 of the tip pipe, the cylindrical joint portion 7 is pulled out while pressing the convex portion 8. A conductive wire provided inside the hose 1 is connected to a terminal of a tip pipe through a terminal (not shown), and a wire connection portion and an adhesive portion are covered with a hose cover 4.

[0008] With the above configuration, dust clogging the hose 1 can be easily removed by removing the hose 1 from the joint portion 6 of the tip pipe.

FIG. 2 shows another embodiment of the present invention. In the figure, the same parts as those in FIG. 1 are designated by the same reference numerals. That is, a ring-shaped protruding portion 11 is provided on the outer surface end of the cylindrical joint 10 fixed to the hose 1 with an adhesive 5, and a ring-shaped locking rib 13 is provided on the outer surface of the joint 12. The locking rib 13 is brought into contact with the protrusion 11, ribs 15a and 15b are provided integrally with the hose cover 14, and the locking rib 13 and the protrusion 11 are sandwiched and fixed by the ribs 15a and 15b. is there. According to this structure, by removing the hose cover 14, the joint portion 12 of the tip pipe and the hose 1 can be separated more easily.

[0010]

[Effect of the device]

 As is apparent from the above embodiments, in the hose connecting device of the vacuum cleaner of the present invention, the hose is joined with the cylindrical joint having the recess, and the outer surface of the joint of the tip pipe is integrally formed with the plurality of protrusions. In this configuration, the convex portion and the concave portion are fitted to each other, and with this configuration, the tip pipe and the hose can be attached and detached easily, and dust clogging the hose can be easily done. It can be removed and serviceability can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a hose connecting device for an electric vacuum cleaner according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of essential parts of a hose connecting device for an electric vacuum cleaner according to another embodiment.

FIG. 3 is a partial cross-sectional view of a conventional hose connecting device for an electric vacuum cleaner.

[Explanation of symbols]

 1 hose 2 tip pipe 4 hose cover 6 joint 7 tubular joint 8 convex 9 concave

Claims (2)

[Scope of utility model registration request] 1. A hose for sucking dust, a tip pipe connected to the hose via a joint, and a hose cover for covering the joint, wherein a tubular joint having a recess is joined to the hose. A hose connecting device for an electric vacuum cleaner, wherein a plurality of convex portions are integrally formed on an outer surface of the joint portion, and the convex portion of the joint portion and the concave portion of the tubular joint portion are fitted to each other. 2. A cylindrical joint having a hose for sucking dust, a tip pipe connected to the hose via a joint, and a hose cover covering the joint, wherein the hose has a ring-shaped protrusion. And a ring-shaped locking rib is provided on the outer surface of the bonding portion, and the locking rib is brought into contact with the protrusion, and the locking rib and the protrusion are formed by a rib provided integrally with the hose cover. A hose connecting device for electric vacuum cleaners that holds the parts.