JPS6037094Y2 - Vacuum cleaner hose connection - Google Patents

Description

[Detailed description of the invention] This invention allows the dust suction hose used in a vacuum cleaner to be extremely easily and firmly connected to the connection pipes on the vacuum cleaner body side and the brush side, and can also be easily removed. This invention relates to a connection part for a vacuum cleaner hose that has been devised so as to

A conventional vacuum cleaner used for home or business use, as shown in the conventional example in FIG. A flexible vacuum cleaner hose 5 made of rubber is connected between a connecting pipe 4 connected to a connecting pipe 4, and a flexible rubber vacuum cleaner hose 5 is connected between both ends of the hose 5 and each connecting pipe 2, 4. The connecting portions X and Y are usually constructed in a structure as shown in FIG.

That is, in FIGS. 1 and 2, reference numeral 5a denotes the mouth cuff portions formed at both ends of the hose 5, and the connecting pipes 2 and 4 are fitted into and connected to the cuff portions 5a. On the circumferential surface, there is a cuff part 5 fitted as shown in Fig. 2.
A protruding ring 6 is provided outwardly from a to securely fix the connection as an extension band 5b.

In addition, 7 in the figure is an elastic wire such as a piano wire embedded in a spiral shape along the entire length of the hose 5, and the earth wire 8 connected to this wire 7 is attached with it exposed on the inner surface of the mouth cuff part 5a. Therefore, according to the above-mentioned connections X and Y, the connection between the vacuum cleaner body 1 and the dust suction pipe 3 can be achieved by simply fitting the connection pipes 2.4 into the cuffs 5a at both ends of the vacuum cleaner hose 5, respectively. The vacuum cleaner hose 5 can be firmly connected to the extended state, and
The earth wire 8 is brought into strong contact with each of the connecting pipes 2 and 4 to ensure sufficient electrical continuity, thereby preventing frictional electrification.

The vacuum cleaner hose connection section configured as described above is very convenient as it allows the connection and disconnection of the hose 5 and the connection pipes 2 and 4 to be performed extremely easily. If the connection is repeatedly inserted and removed, the connection may become loose due to aging of the rubber, etc. Especially when the user pulls on the dust suction pipe 3 and hose 5 when moving the vacuum cleaner body 1. If the hose 5 is moved while moving, the hose 5 may end up being unplugged from the connecting pipes 2 and 4, and an improvement in this point has been desired.

Therefore, in view of the above-mentioned points, the present invention aims to provide a connection part for a vacuum cleaner hose that is constructed so that the hose does not easily come out from the connection pipe even if the dust suction pipe or hose is pulled. Hereinafter, one embodiment of the present invention will be described in detail based on the description of the accompanying drawings (particularly FIG. 3).

Since the present invention is constructed by using the conventional connection part described above as is, in explaining the present invention shown in FIG. 3, the same as that shown in FIGS. 1 and 2 will be used. Identical members will be designated by the same reference numerals, detailed explanations thereof will be omitted, and only the features of the present invention will be explained here.

That is, in FIG. 3, reference numeral 10 denotes a metal or synthetic resin type fastener formed into a generally tapered cup shape, and this cup-shaped fastener 10 corresponds to the bottom plate as shown in the figure. Using the slide hole 10b drilled in the end surface 10a,
It is slidably attached to the connection pipes 2 and 4 with the widely open mouth portion 10c facing the distal ends of the connection pipes 2 and 4, that is, the direction of the hose 5 to be connected.

After fitting the connecting pipe 2.4 into the cuff portion 5a of the hose 5, the fastener 10 constructed as described above is tilted when moved in the direction of arrow A in FIG. The inner surface 10' of the cuff portion 5a, in particular, the surface expanded by the ring protrusion 6 of the connecting pipes 2 and 4, is gradually pressed against the ring protrusion 6 as it moves. It can be firmly fixed by tightening.

It goes without saying that the tightening force exerted by the fastener 10 increases as the fastener 10 moves further in the direction of arrow A.

Further, the tightening force by the above-mentioned fastener 10 can be released by using the fastener 1
0 in the direction shown by arrow B in FIG. It can be extracted from 2 and 4.

Since the connection part of the vacuum cleaner hose according to the present invention has the structure as described above, the mouth cuff part of the hose connected to each connection pipe has a ring convex expanded band action and is made into a substantially tapered cup shape. The tightening action of the fasteners works together to firmly fix it to the connecting pipe, so even if you move the vacuum cleaner while pulling the dust suction pipe or cleaning hose during cleaning, the hose will not be pulled out of the connecting pipe due to its weight. There is no need to worry about the tightening force coming out, and there is also the advantage that the tightening force can be adjusted freely by adjusting the amount of movement of the fastener. It has a simple function that allows the tightening force to be released with a single touch, has a simple structure, can be implemented at a very low cost, and has the advantage of increasing the contact force of the ground wire during connection to further improve electrical conductivity. Coupled with the fact that it can be used in various types of vacuum cleaners, it is suitable for use in hose connections of various types of vacuum cleaners.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of a vacuum cleaner, Fig. 2 is a partially cutaway front view of a conventional hose connection part, and Fig. 3 is a perspective view showing a hose connection part according to an embodiment of the present invention. It is a partially broken front view. 1...Vacuum cleaner body, 2...Connection pipe, 3...Dust suction pipe, 3a...Cleaning brush, 4...Connection pipe , 5... Vacuum cleaner hose, X, Y... Connection part, 5a...
... Mouth cuff part, 5b ... Extended band part, 6 ... Ring convex shape, 10 ... Approximately tapered cup-shaped fastener.

Claims (1)

[Scope of utility model registration request] Extend the connected mouth cuff part outward on the vacuum cleaner body side that is connected by fitting into the mouth cuff part of a rubber hose for a vacuum cleaner that is configured to be flexible, or on the circumferential surface of the tip of the brush side connecting pipe. In addition to providing a ring convex shape,
The above connection pipe has a structure in which when it slides toward the connected hose side, it presses the extension band part of the mouth cuff part, and
A connection part for a vacuum cleaner hose, characterized in that a fastener having a generally tapered cup shape as a whole is slidably attached so that the above-mentioned pressure can be released by sliding in the opposite direction.