KR20060128415A - Flexible apparatus of extension pipe for a vacuum cleaner - Google Patents

Abstract

A bending apparatus of an extension pipe for a vacuum cleaner is provided to selectively bend the extension pipe at various angles and improve the cleaning performance by moving the operating member to the extension pipe and to the knob pipe. A bending apparatus of an extension pipe for a vacuum cleaner comprises: a fixing link(30) longitudinally formed with at least one guide groove(32) at the outer surface, longitudinally extended with a pair of combining ends(34) having a hinge hole(33) at one end, and fitted at the rear end of a knob pipe(10) connected to the body and the suction hose; a rotary link(40) where a pair of rotary ends(44) having a rotary projection(42) are longitudinally extended from one end, and one end is fitted at an extension pipe(20); a bending hose(50) whose one end is communicated with the rear end of the knob pipe through the fixing link and other end is communicated with one end of the extension pipe through the rotary link; and a pair of semi-circle shaped operating members(60) formed with a guide projection(62) at the inner peripheral surface and formed with a combining unit at both ends. A sliding prevention knurling unit(66) is formed at the outer peripheral surface of the operation member.

Description

Refractor of extension tube for vacuum cleaner {FLEXIBLE APPARATUS OF EXTENSION PIPE FOR A VACUUM CLEANER}

1 is an exploded perspective view showing a refractive apparatus according to the present invention.

Figure 2 is a perspective view of the coupled state of the refractive apparatus shown in FIG.

3A and 3B are cross-sectional views taken along line A-A and line B-B of FIG.

Figure 4a, 4b is a schematic cross-sectional view showing the operating state of the refractive apparatus according to the present invention.

Figure 5 is a perspective view of a vacuum cleaner according to the prior art.

<Description of the symbols for the main parts of the drawings>

10: handle tube 20: extension tube

30: fixed link 32: guide groove

33: hinge hole 34: coupling end

40: rotary link 42: rotary projection

44: rotating end 50: refractive hose

60: operating member 62: guide projection

66: knurled part

The present invention relates to a deflection apparatus for an extension tube for a vacuum cleaner, and more particularly, to a deflection apparatus for a vacuum cleaner extension tube that can be used by refracting the extension tube at various angles by installing a refraction apparatus between the extension tube and the handle tube.

A typical vacuum cleaner is shown in FIG. Referring to the configuration of the conventional vacuum cleaner as follows.

In general, a vacuum cleaner includes a main body (1) having a suction motor (not shown), a filter means (not shown), and a power supply means for supplying power therein, and one end of which is connected to the main body (1). (1) a suction hose (3) for guiding the flow of air containing foreign matter so that foreign matter is sucked into the inner filter means, and an operation button connected to the other end of the suction hose (3) for operation of the vacuum cleaner; A suction part 6 provided with a handle part 5, an inlet 6-1 so as to suck air containing foreign matter through the suction hose 3, and the suction inlet 6. It is composed of an extension pipe 7 which is connected between the handle portion 5 to guide the flow of air so that the air containing the foreign matter sucked through the suction port 6 is sucked to the suction hose (3) side.

Referring to the operation of the conventional vacuum cleaner having such a configuration as follows.

After connecting the power to operate the vacuum cleaner by operating the operation button installed on the handle 5, the suction motor installed inside the main body 1 is operated, the main body 1 by the rotational force of the suction motor The suction force is generated inside.

The air containing dust and foreign matter is sucked through the suction port 6-1 of the suction port 6 by the suction force of the suction motor, and the air containing the dust and foreign matter is lower extension tube 7b and upper extension tube ( 7a), then through the handle part (5) and the suction hose (3)

The main body 1 is sucked into the inside. Then, dust and foreign matter are filtered out by the filter means in the main body 1 and then discharged to the outside of the main body 1.

However, according to the structure of the extension tube 7 of the conventional vacuum cleaner, there are the following problems.

The extension pipe (7) is extended by a predetermined length by coupling the upper extension pipe (7a) and the lower extension pipe (7b) in a straight line by the connecting pipe (9), so that the user as far as possible without moving directly Structure to be able to clean to place

It is. However, if the user wants to clean under the furniture, including a sofa or bed, the length of the extension tube 7 is too long, so that the suction port (6) to the deep position of the desired space to be cleaned (sofa or bed) In order to reach the end of the extension tube (7) to the bottom side and to bend the waist is possible.

That is, when cleaning the furniture under the sofa or bed, the user has to lay down the extension tube 7 to the floor and bend the back so that the use of the vacuum cleaner is very cumbersome and the fatigue during the cleaning operation is large. In addition, there was a problem that if you bend the waist for a long time to clean the user's waist may occur.

The present invention has been made to solve the above problems of the prior art, the technical problem of the present invention is to provide a means for selectively refracting the extension tube of the vacuum cleaner at various angles with respect to the handle tube.

In order to solve the above technical problem, the present invention,

It is formed in a hollow shape, at least one guide groove is formed in the outer side in the longitudinal direction, a pair of coupling ends having a hinge hole at one end extends in the longitudinal direction, the end of the handle tube connected to the main body and the suction hose Fixing link is fitted to the;

It is formed in a hollow shape, a pair of rotary ends having a rotary projection for rotatably coupled to each of the hinge hole is formed extending in the longitudinal direction from one end, one end is fitted to the extension tube and the rotary end is rotated A rotary link rotatably coupled to the coupling end by a projection;

One end is coupled to communicate with the end of the handle tube through the fixed link, the other end is a refraction hose coupled to communicate with one end of the extension tube through the rotary link; And

Guide protrusions are formed on the inner circumferential surface, respectively, and coupling portions are formed at both ends, and the guide protrusions are inserted while being guided by being inserted into the respective guide grooves. It provides a refractive apparatus of the extension tube for a vacuum cleaner comprising a; a pair of semi-cylindrical operation member for limiting the rotation angle of the link.

The engaging portion is a locking projection formed on a portion of each operating member; And engaging grooves formed in other portions;

When the operating members of both sides are coupled while wrapping the fixed link, the engaging projections respectively formed in different directions is characterized in that the insertion is coupled to each of the engaging groove.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention having the features as described above.

As shown in Figures 1 to 3b extension pipe refraction apparatus according to the present invention is coupled to the fixed link 30, the extension pipe 20 is coupled to the handle tube 10 is rotatably coupled to the fixed link (30) Refractive hose 50 is coupled to the handle tube 10 and the extension tube 20, respectively, through the rotary link 40, the fixed link 30 and the rotary link 40, and coupled to the fixed link 30 It consists of an operating member 60 for selectively allowing the refraction of the rotary link 40.

Looking at this in more detail as follows.

The fixed link 30 is formed in a cylindrical shape as shown in FIG. 1 and has a structure in which a pair of coupling ends 34 extend in the longitudinal direction on both sides of one end. Guide grooves 32 are formed in the longitudinal direction of the fixed link 30 on both sides of the outer side of the fixed link 30, that is, the outer sides opposite to each other. And hinge holes 33 are formed in each coupling end 34. The fixed link 30 is fitted to the other end of the end of the handle tube 10 connected to the main body and the suction hose.

Rotating link 40 has the same shape as the fixed link 30, as shown in Figure 1, is formed in a hollow shape and one end of the pair of rotary ends 44 extending in the length direction on both sides Has a structure. Rotating protrusions 42 for fitting to each hinge hole 33 are formed on inner surfaces of the rotary ends 44 facing each other. The rotary link 40 is the other end is fitted to one end of the extension pipe (20).

Refraction hose 50 is for connecting the handle tube 10 and the extension tube 20 in communication, as shown in Figure 1 has a structure that can be bent at various angles to form wrinkles. One end of the refraction hose 50 is coupled to the handle tube 10 through the fixing link 30, the other end is coupled to the extension tube 20 through the rotary link 40, the suction air is handled in the extension tube 20 To be moved to the tube (10).

The operating member 60 is coupled to the fixed link 30 to selectively limit the rotation angle of the rotary link 40 by moving forward and backward, as shown in Figure 1 a pair of semi-cylindrical member Is made of. Guide members 62 are formed on the inner circumferential surface of each member so as to be inserted into and guided in the guide grooves 32. And on each outer circumferential surface is formed a non-slip knurling portion 66. The knurling portion 66 is for roughening the outer circumferential surface of the operation member 60 so as to prevent the sliding occurs when the user is mounted. Each operating member 60 is coupled to each other while surrounding the fixed link 30 by a coupling portion 64, the coupling portion 64 is abutting surface when coupled to each other as shown in Figure 1 or 3b A part of the engaging projection 64A is formed, and the other part of the engaging groove 64B is formed when the two semi-cylindrical operating members 60 are coupled to each other, when the engaging projection ( 64A is fitted into the locking groove 64B of the other operating member 60 and at the same time, the locking projection 64A of the other operating member 60 is fitted into the locking groove 64B of the one operating member 60. It is to form an operation member 60 integrated into a cylindrical shape.

At this time, the coupling portion 64 for coupling the divided operation member 60 may be composed of screws, as well as the structure of the locking projection (64A) and the locking groove (64B).

Referring to the operation of the present invention configured as described above is as follows.

As shown in Figure 3a and 3b is fixed link 30 is coupled to the handle tube 10 of the vacuum cleaner, the rotary link 40 is coupled to the extension tube 20, both ends of the refraction hose 50 Rotating protrusion of the rotary end 44 to the hinge hole 33 of the coupling end 34 in a state of being coupled to the handle tube 10 and the extension tube 20 through the fixing link 30 and the rotary link 40 ( Each insertion 42 allows the rotation protrusion 42 to be rotated in the hinge hole 33. As such, when each rotary protrusion 42 of the rotary link 40 is inserted into the hinge hole 33 of the fixed link 30, the rotary link 40 rotates within an angle range set around the rotary protrusion 42. It becomes possible.

As described above, in order to couple the operating member 60 to the fixed link 30 in the state in which the fixed link 30 and the rotary link 40 are coupled, the fixed link 30 is formed by each of the semi-cylindrical operating members 60. Wrapping the guide protrusions 62 to be inserted into the guide groove 32 of the fixed link (30).

Then, each locking projection 64A is inserted into each locking groove 64B to be caught. In this process, each operating member 60 is combined while forming a fixed link 30 to form a cylindrical shape.

As shown in FIG. 4A, when the components 60 are pushed to the extension tube 20, the guide protrusions 62 are guided to the guide grooves 32, and the operating members 60 are coupled to each other. ) Is moved to the extension pipe 20 side. At this time, the user is easy to attach the operating member 60 by the non-slip knurling 66.

When the operation member 60 is moved from the handle tube 10 side to the extension tube 20 side as described above, the rotary link 40 interferes with both inner walls of the operating member 60 so that the rotary link 40 Rotation is prevented, so that the handle tube 10 and the extension tube 20 are kept in a straight line. That is, the angle adjustment of the extension pipe 20 is prevented.

In this state, as shown in FIG. 4B, when the operating member 60 is pushed and moved toward the handle tube 10, the operating member 60 is out of the area of the rotary link 40. It can be freely rotated within the angle range set around 42. At this time, the refraction hose 50 is easily bent by the wrinkles.

And the set angle is 90 ° to the left and right, respectively, relative to the center line when the handle tube 10 and the extension tube 20 is a straight line. This angle is the angle of rotation (refraction) until the side of the rotary end 44 of the rotary link 40 interferes with the coupling end 34 of the fixed link (30).

As described above, the inlet pipe coupled to the end of the extension pipe 20 may be extended or retracted freely from the left / right side of the extension tube 20 by only the operation of pushing and pulling the operation member 60. The user's convenience can be improved by moving to more various areas.

The refraction apparatus of the extension tube for a vacuum cleaner according to the present invention is to prevent the refraction of the extension tube, or to allow the refraction of the extension tube by moving the operation member slidingly coupled to the fixed link to the extension tube side and to the handle tube side, the extension tube is various The effect of being selectively refracted at an angle is provided, and the operation for refracting the extension tube can be made quickly and easily.

While the invention has been shown and described with respect to specific preferred embodiments, the invention is not limited to the embodiments described above, and is commonly used in the art to which the invention pertains without departing from the spirit of the invention as claimed in the claims. Anyone with knowledge will be able to make various variations.

Claims (3)

It is formed in a hollow shape, at least one guide groove is formed in the outer side in the longitudinal direction, a pair of coupling ends having a hinge hole at one end extends in the longitudinal direction, the end of the handle tube connected to the main body and the suction hose Fixing link is fitted to the; A rotary link which is formed in a hollow shape and has a pair of rotary ends extending in a longitudinal direction from one end with a rotary protrusion for rotatably coupled to each of the hinge holes, and one end of which is fitted to the extension tube; One end is coupled to communicate with the end of the handle tube through the fixed link, the other end is a refraction hose coupled to communicate with one end of the extension tube through the rotary link; And Guide protrusions are formed on the inner circumferential surface, respectively, and coupling portions are formed at both ends, and the guide protrusions are inserted while being guided by being inserted into the respective guide grooves. And a pair of semi-cylindrical actuating members for limiting the rotation angle of the link. The method of claim 1, wherein the engaging portion engaging projections formed on a part of each operating member; And engaging grooves formed in other portions; Refractive apparatus of the extension tube for a vacuum cleaner, characterized in that when the operation member of both sides are coupled while wrapping the fixed link, the engaging projections respectively formed in different directions are inserted into each of the engaging grooves. The refraction apparatus of the extension pipe for vacuum cleaners of Claim 1 or 2 characterized by the non-slip knurling part formed in the outer peripheral surface of the said operation member.

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