JPH02104320A - Suction pipe for cleaner - Google Patents

Abstract

PURPOSE:To eliminate the replacement of a convergent nozzle suction port component, and thereby contrive to make cleaning operations smooth by constituting the elastic cylindrical body of the end section of a pipe main body to collapse when it is made free, and also to become cylindrical again roughly equal to a suction passage in diameter when it is restrained. CONSTITUTION:When the corner section of a room is cleaned, A form restraining section 13 is slid so as to be fastened at a slide limit position 11b on the left side so that it is apart from the outer circumferential section of an elastic cylindrical body 12. This permits the original tip end of the cylindrical body 12 to be collapsed in shape while being narrowed so as to make an opening section a convergent nozzle suction port. Accordingly the cylindrical body 12 performs the same function as that of a convergent nozzle suction port component 4 in this case. In addition, the projections 12a of the cylindrical body 12 prevents the suction port from being completely collapsed so as to be blocked by abutting onto one another. In the second place, when a carpet and the like are cleaned, the form restraining section 13 is slid so as to be fastened at a slide limit position 11c at the right side so that it is forcibly coupled with the elastic cylindrical body 12. This permits the cylindrical body 12 to be restrained in such a way as to be formed into a cylinder with a circular cross section. After then, the base end section 4b of a suction port component in a box shape is inserted into the tip end of the cylindrical body 12 which has been formed into a box shape in cross section so that connection is thereby made.

Description

Detailed description of the invention [Technical field to which the invention pertains] This invention provides a vacuum cleaner with one end connected directly or indirectly to a suction port of a vacuum cleaner to form a continuous suction passage from the other end to the one end. Related to suction pipes for vacuum cleaners.

[Prior Art] As shown in FIG. 9, a general vacuum cleaner has a flexible tape 2 inserted into the suction port of the vacuum cleaner 1, and a plurality of rigid suction pipes 3 connected to the suction port. The body 4 is inserted and connected. As shown in the figure, the suction port structure 4 may be a box-shaped one for cleaning tatami mats, floors, dustpans, etc.
Or, as shown in Figure 1O, there are tapered ones for cleaning the partitions between rooms. These suction port structures 4 are selectively attached to the foremost suction pipe 3 depending on the object to be cleaned.

The conventional suction pipe 3 is a rigid vibrator with a circular cross section, and simply connects the suction port structure 4 and the cleaner body 1 to form a suction passage.

[Problems to be Solved by the Invention] Incidentally, in a general household, the box-shaped suction port structure 4 as shown in FIG. 9 and the tapered suction port structure 4 as shown in FIG. 1O are used less frequently. Extremely expensive.

Therefore, in the past, these suction port structures 4 had to be prepared at all times during cleaning, and moreover, they had to be replaced as necessary, which was extremely troublesome.

This invention aims to solve these problems and provides a novel cleaning device which not only functions as the suction pipe 3 as shown in FIG. 9 but also functions as a tapered suction port structure as shown in FIG. 1O. The purpose is to provide suction pipes for machines.

[Means for Solving the Problems] The suction pipe for a vacuum cleaner of the present invention has one end connected directly or indirectly to the suction port of the vacuum cleaner, and has a continuous suction pipe from the other end to the one end. In a suction pipe for a vacuum cleaner that forms a passage, a flexible pipe is provided at the other end of the pipe body, has an interior that is continuous with approximately the same diameter as the suction passage, and is collapsible and deformable so as to narrow the tip of the suction passage. and a cylindrical body on the other end of the pipe body, which restrains the cylindrical body to have approximately the same diameter as the suction passage when a restraining force is applied to the cylindrical body, and It is characterized by comprising a shape restraining member that allows the cylindrical body to collapse and deform when the restraining force on the body is released.

[Function] In the suction pipe for a vacuum cleaner of the present invention, the cylindrical body attached to the end of the pipe body is made into a collapsed shape or is restrained to have approximately the same diameter as the suction passage.

In the former case, it functions as a tapered suction port structure used when cleaning partitions in a room, while in the latter case, it functions as a pipe connecting various suction port structures and the vacuum cleaner. . In other words, in addition to functioning as a pipe, it also functions as a tapered suction port structure.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 8.

1 to 6 are diagrams for explaining an embodiment of the present invention, and in the figures, reference numeral 11 denotes a rigid pipe body of a predetermined length. This pipe main body 11 has a circular cross section, and its left end in FIG. 1 is inserted into the tip of a flexible pipe 2 or suction pipe 3 similar to that shown in FIG. connected to the suction port. Thereby, the pipe main body 11 forms a suction passage extending from the right end in the figure to the left base end. A flexible cylindrical body 12 is attached concentrically around the tip of the pipe body 11. This cylindrical body 12 has the same diameter as the pipe body 11, and its tip is cut off diagonally. When no restraining force is applied to this cylindrical body 12 from the outside,
The tip is crushed and deformed in a predetermined radial direction (the front and back directions of the paper in FIG. 1, the up and down directions in FIG. 3, and the left and right directions in FIG. 5) so that its tip becomes narrower. The inner circumferential surface on the tip side of the cylindrical body 12 is provided with convex portions 12a that abut against each other when the cylindrical body 12 itself is crushed and deformed. The material and structure of the cylindrical body 12 are not particularly limited.
It is sufficient if it can be crushed and deformed into a predetermined shape as shown in the figure. For example, it can be formed of a flexible resin that has partially different thicknesses so that it can be easily crushed into a predetermined shape, or a resin that is difficult to bend in the longitudinal direction and easily deforms in the radial direction.

The pipe body! A cylindrical rigid shape restraining member 13 is fitted to the outer peripheral portion of I so as to be slidable in the left-right direction in FIG. A guide groove 11a extending in the left-right direction in FIG. 1 is provided on the outer peripheral surface of the pipe body 11, and a guide protrusion 13a that fits into the guide groove 1a is provided on the inner peripheral surface of the shape restraining member 13. is provided. And, with these guide grooves 112L and guide protrusions 13a,
The sliding range of the shape restraint member 13 is regulated, and the shape restraint member 13 is prevented from rotating. The slide range of the shape restraining member 13 is regulated with the slide positions shown in FIGS. 1 and 3 as the leftward slide limit position, and the slide positions shown in FIGS. 2 and 4 as the rightward slide limit position. ing.

Moreover, between the pipe main body 11 and the shape restraining member 13,
A stopper mechanism is provided for selectively stopping the shape restraining member 13 at the leftward slide limit position or rightward slide limit position.

In the case of this example, this stopper mechanism includes the shape restraining member 13
A locking member 14 is attached to the side, and its negative end 14λ is selectively locked in the locking hole 11b or lie on the pipe body 11 side. That is, the locking member 14
is attached to the shape restraining member 13 so as to swing about a point P as a fulcrum, and the other end 14b of the locking member 14 is a spring! 5 to the outside (upward in FIG. 1). When the shape restraining member I3 is at the leftward sliding limit position, as shown in FIG.
When the one end 14a of the locking member 14 engages with the left locking hole 11b by the biasing force 5, and on the other hand, when the shape restraining member 13 is at the rightward sliding limit position, as shown in FIG. Spring! 5, one end 14a of the locking member 14 engages with the right locking hole 11c due to the biasing force. To release such engagement, push the other end 14b of the locking member 14 inward from the outside (downward in FIG. 1) against the biasing force of the spring 15, and then push the locking member 14 is swung to remove its one end 14a from the locking holes 11b and 11c.

A bellows-shaped elastic body 16 is attached between the outer periphery of the shape restraint member 13 on the left side in FIG. 1 and the outer periphery of the pipe main body 11. When the shape restraining member 13 slides toward the left, it is compressed as shown in the figure, while when it slides toward the right in the figure, it is stretched as shown in FIG.

Next, the effect will be explained.

First, vacuum the left end of the pipe body 11 in FIG.
(See Figure 9), connect it to the suction port side of the pipe body I
Inside I, a suction passage is formed from the right side to the left side in the figure.

When cleaning a partition of a room, etc., as shown in FIG. away from the section to the left. Therefore, the restraining force from the cylindrical body 12 is not applied to the formation restraining member 13, and the cylindrical body 12 assumes its original shape, that is, a shape that collapses so that the tip becomes narrower. In this original shape, the opening of the cylindrical body 12 forms a tapered suction port as shown in FIG. therefore,
This cylindrical body! 2 functions in the same manner as the tapered suction port structure 4 shown in FIG. 1θ described above. In addition, the cylindrical body 1
The two convex portions 12a prevent the suction port from being completely crushed and blocked by abutting against each other.

On the other hand, when cleaning tatami mats, floors, toiletries, etc., first stop the shape restraint member 13 at the rightward sliding limit position as shown in FIG. Forcibly fit onto the outer periphery of 12. Thereby, the shape restraining member 13 restrains the cylindrical body 12, and the cylindrical body I2 is forcibly shaped into a cylindrical shape having a circular cross section as shown in FIG. Thereafter, a base end 4a of a box-shaped suction port structure 4 as shown in FIG.
(See Figure 4) and connect. A recess 4b is formed on the outer periphery of the base end 4a, and the protrusion 12a of the cylindrical body 12 elastically fits into the recess 4b while expanding in diameter at the tip of the cylindrical body I2. By attaching the box-shaped suction port structure 4 in this way, the pipe body 11
connects the suction port structure 4 and the vacuum cleaner l (see FIG. 9), and functions in the same manner as the suction pipe 3 of FIG. 9 described above. Further, in this case, the suction pipe 3 shown in FIG. 9 may be inserted into the tip of the cylindrical body 12 for connection, and the base end 4a of the suction port structure 4 may be inserted and connected to the tip of the suction pipe 3. .

Therefore, the suction pipe of the present invention has both the function of the suction pipe 3 shown in FIG. 9 described above and the function of the tapered suction port structure 4 shown in FIG. 1O.

FIG. 7 and FIG. 8 are diagrams for explaining other different embodiments of the present invention.

The V in Figure 7 is the pipe itself! A male thread lid and a female thread 13 are formed on the outer circumferential surface of l and the inner circumferential surface of the shape restraining member 13, which screw together. By turning the formation restraint member 13, the formation restraint member 13 moves to the right as shown by the solid line in the figure to restrain the cylindrical body 12, or to the left as shown by the double-dashed line in the figure. The cylindrical body 12 is released from the restraint by moving to the cylindrical body 12.

The one in FIG. 8 has a cylindrical body 12 on the outer circumference of the pipe body
are fitted together to make the cylindrical body 12 slidable in the left and right directions in the figure. Then, when the cylindrical body 12 is slid to the left as shown by the solid line in the figure, the tip portion of the pipe body 11 is fitted inside the cylindrical body 12 to restrain the cylindrical body 12, When the cylindrical body 12 is slid to the right as shown by the two-dot chain line in the figure, the cylindrical body 1
The distal end portion of the pipe body 11 is released from the inside of the tube 2 to release the restraint of the cylindrical body 12. Therefore, in this case, the pipe body l! The tip end portion functions as the shape restraining member 13.

Note that if there is no risk of the cylindrical body 12 being completely crushed, there is no need to provide the convex portion 12a. Moreover, the cylindrical body 12 may be crushed by the suction force of the vacuum cleaner l. In addition, a spring member having an oval shape or the like is embedded or attached to the tip of the cylindrical body 12, and the spring member allows
A deforming force may be applied to make the cylindrical body 12 into a collapsed shape.

In addition, various types can be adopted as the shape restraining member 13, and in short, the flexible cylindrical body 12 is attached to the pipe body 13.
Any material may be used as long as it can be constrained to the same shape as 1 or the constraint can be released.

[Effects] As explained above, the suction pipe for a vacuum cleaner of the present invention has a flexible cylindrical body attached to the end of the pipe body,
Since the cylindrical body is configured to have a collapsed shape or to be constrained to have approximately the same diameter as the suction passage, in the former case, the suction port structure is tapered to be used when cleaning partitions of a room, etc. On the other hand, in the latter case, it can function as a pipe connecting various suction opening structures and the vacuum cleaner.

As a result, there is no need to prepare a frequently used tapered suction port structure, and the trouble of replacing the tapered suction port structure with another suction port structure is eliminated, making cleaning easier in general homes. can be achieved.

[Brief explanation of the drawing]

1 to 6 are diagrams for explaining one embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view of the main part when the restraining force on the flexible cylindrical body is released, and FIG. Figure 2 is a longitudinal sectional view of the main part when a restraining force is applied to the flexible cylindrical body, Figure 3 is a sectional view taken along the line ■-■ in Figure 1, and Figure 4 is the IV in Figure 2.
A sectional view taken along line -IV, FIG. 5 is a view taken in the direction of the ■ arrow in FIG. 1, and FIG. 6 is a view taken in the direction of the ■ arrow in FIG. FIGS. 7 and 8 are side views of essential parts for explaining another embodiment of the present invention. Fig. 9 and Fig. 1θ are diagrams for explaining the conventional example, in which Fig. 9 is an overall view when a box-shaped suction port structure is connected, and Fig. 1θ is a diagram of a tapered suction port structure. FIG. ! ... Vacuum cleaner, 11 ... Pipe body, 12
...Cylindrical body, 13...Shape restraint member.

Claims (1)

[Claims] A suction pipe for a vacuum cleaner, one end of which is directly or indirectly connected to a suction port of a vacuum cleaner to form a continuous suction passage from the other end to the one end, comprising: a flexible cylindrical body provided on the other end side, the interior of which is continuous with approximately the same diameter as the suction passage, and capable of being crushed and deformed so as to narrow the tip of the suction passage; and provided on the other end side of the pipe body. When a restraining force is applied to the cylindrical body, the cylindrical body is restrained to approximately the same diameter as the suction passage, and when the restraining force on the cylindrical body is released, the cylindrical body is crushed and deformed. A suction pipe for a vacuum cleaner, characterized in that the suction pipe is equipped with a shape-restricting member that allows.