JPS6337010Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a hose for use in a vacuum cleaner that is expandable and retractable.

[Prior art]

Although conventional vacuum cleaner hoses are flexible, they have little stretchability in the longitudinal direction, and therefore,
When storing the hose, the long hose must be hung on a wall or the like, which is very unsightly and inconvenient.

In addition, some vacuum cleaners have a hose that can be expanded and contracted to be stored inside the main body. It was difficult.

[Summary of the idea]

This invention was made to eliminate these drawbacks, and when storing the hose, which is in an extended state under normal conditions, the hose is The suction port of the hose can be closed by hand, etc., and the hose can be contracted and stored.

[Example of idea]

Hereinafter, embodiments of this invention will be described with reference to the accompanying drawings.

1 to 3 show an embodiment of this invention.

In the figure, 1 is a connection pipe with a remote control hand switch 2 on the outside, 3 is a support pipe rotatably provided on the inner circumferential surface of the connection pipe 1, and 4 is a main body attachment/detachment button 5 on the outside. A main body insertion pipe that can be inserted into the vacuum cleaner main body having a contact pin 6 for control, 7
is one end of the above connecting pipe and the above main body insertion pipe 4
This is an extensible hose consisting of a reinforcing core wire wound spirally inside the hose, which is attached to one end with an adhesive or the like, and a rubber or soft plastic tube provided on the outer periphery.

In the normal state, the telescopic hose 7 is in an extended state as shown in FIG. As shown in
Shrink.

Reference numeral 8 denotes a soft protective cover having a plurality of locking holes 9 fixed to the connecting pipe 1 and the main body insertion pipe 4, respectively, on which the telescopic hose 7 is provided, and 10 slides on the outer periphery of the telescopic hose 7. It is a soft storage tube that can be inserted into the tube, and the protective cover 8 is attached to both ends of the tube.
A retaining ring 12 made of plastic such as ABS resin and having a plurality of retaining pawls 11 that engage with the retaining ring 12 is fixed thereto. 13 is a main body of the vacuum cleaner which can be started or stopped by the remote control hand switch 2; 14 is a retractable pipe connected to the support pipe 3; and 15 is a floor brush connected to the retractable pipe 14.

The vacuum cleaner hose having the above structure can be used as a normal vacuum cleaner by being attached to the vacuum cleaner main body 13, as shown in FIG.

As shown in FIG. 2, by closing the support pipe 3 of the telescopic hose 7 by hand or the like while operating the vacuum cleaner main body 13, the pressure inside the telescopic hose 7 is reduced, so that the telescopic hose 7 contracts. .

At the same time, the retaining ring 12 of the storage tube 10 engages with the protective cover 8, and the locking claw 11 and the locking hole 9 allow the telescopic hose 7 to separate from the storage tube 10 even when the vacuum cleaner body 13 stops operating. do not.

Furthermore, when in use, by removing the locking pawl 11 from the locking hole 9, the telescopic hose 7 can be freely removed and used.

[Effect of idea]

As explained above, this invention can be stored in a shortened storage tube when not in use, so it does not require a large storage space as in the conventional case.

In addition, when in use, by fixing the flexible storage tube to the connection part of the connection pipe where the flexible hose bends the most and the connection part of the main body insertion pipe, it is possible to The strength of the hose portion increases in the bent state.

In addition, by locating the storage tube at an arbitrary position in the center, the strength of the hose section in the most suspended state can be increased.

Furthermore, since the retaining rings fixed to both ends of the storage tube have the same shape and commonality as the protective cover, the hose can be assembled from either direction, resulting in good workability.

In addition, since the parts are common, parts management is easy, and there are excellent effects in terms of storage, reinforcement, and assemblability.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of this invention.
FIG. 2 is a sectional view showing the hose of the same embodiment as in FIG. 1 in a contracted state, and FIG. 3 is an explanatory view showing the same embodiment as in FIG. 1 in a usage state. 1...Connection pipe, 4...Body insertion pipe, 7
... Telescopic hose, 8 ... Protective cover, 9 ... Locking hole, 10 ... Storage cylinder, 11 ... Locking claw, 12 ...
stop ring. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A retractable hose is provided with a connection pipe and a main body insertion pipe inserted into the vacuum cleaner main body at both ends, and a flexible storage cylinder is slidably fitted on the outside of the retractable hose. A retaining ring is fixed to each end of the storage cylinder and has a retaining claw, and a protective cover is respectively fixed to the connecting pipe and the main body insertion pipe and has a retaining hole for retaining the retaining claw. Telescopic hose for vacuum cleaner.