JP3167115B2 - Suction head unit for vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to a vacuum cleaner, preferably a household vacuum cleaner, and more particularly to a suction head unit including a suction head.

[0002]

2. Description of the Related Art A vacuum cleaner of this type includes a cleaner body, a suction pipe connected to the cleaner body via a hose, and a suction head attached to a tip of the suction pipe. As a suction head, including a so-called multipurpose brush having a rotating brush or a crepas pipe,
These suction heads are appropriately replaced according to conditions such as a cleaning place.

[0003] In order to eliminate the trouble of replacing the suction head and improve the usability, a conventional method has been proposed, for example, in Japanese Patent Laid-Open Publication No.
Improvements or contrivances have been made as disclosed in US Pat. In the suction pipe of the vacuum cleaner described in this publication, a multi-purpose brush 2 is attached by bending the tip of the suction pipe 1 as shown in FIG. 6, and a built-in pipe 3 that can protrude inside the suction pipe 1 is provided. . Then, if necessary, the built-in pipe 3 is made to protrude from the suction pipe 1 as shown in the figure, and this is used as a crepass pipe.

[0004]

However, when the multipurpose brush 2 is mounted and used, the degree of freedom of movement between the suction pipe 1 and the multipurpose brush 2 is restricted, and it is not always easy to use. Alternatively, Japanese Patent Publication 2-50
A similar problem can occur in the aspirator disclosed in JP-A-0955 / 95.

[0005] In view of the above circumstances, an object of the present invention is to provide a suction head unit for a vacuum cleaner which is easy to use and effectively realizes excellent usability.

[0006]

A suction head unit for a vacuum cleaner according to the present invention has a suction head connected to a main body of the vacuum cleaner through a suction pipe, and the suction head is provided with a suction pipe. Of this the inner tube constituted by
External the spherical portion is formed to slidably fit to the tip in a cylindrical
And three suction passages inside the suction head.
It is formed and the above suction pipe penetrates the bottom
An opening is opened, and the spherical portion of the outer cylinder is inserted into a spherical space formed in the receiving portion of the suction head and is rotatably fitted therein .
A suction hole also serving as an insertion hole is opened and
There are two suction holes on both sides for the suction head end
The above-mentioned tip and each suction hole on both sides have three suction passages.
It is characterized in that it respectively communicate the.

[0007]

According to the present invention, the suction head unit connected to the cleaner body via the suction pipe has an outer cylinder slidably fitted to an inner cylinder formed by the suction pipe. The outer cylinder is rotatably connected at its distal end to the suction head, so that the freedom of movement between the suction pipe and the suction head can be greatly increased. Therefore, when the normal suction head is used, the suction head can be operated smoothly, and an extremely easy-to-use vacuum cleaner is realized.

Further, a so-called crepass pipe or the like is constituted by the suction pipe itself by inserting the suction pipe through the outer cylinder and penetrating the suction head. Thus, while having multi-functionality, each function is effectively exhibited and excellent usability is provided. Furthermore, three suction points are applied to the spherical part at the tip of the outer cylinder.
Hole, ie, one insertion / suction hole and suction head end
Forming in the suction head by providing two suction holes for
And communicate with each of the three suction passages.
Suction can be performed efficiently.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a suction head unit for a vacuum cleaner according to the present invention will be described below with reference to FIGS. The cleaner in this embodiment includes a cleaner body (not shown), a suction pipe connected to the cleaner body via a hose connected to the cleaner body, and a suction head attached to a tip of the suction pipe. Shall be

FIG. 1 shows a main configuration of the present invention.
In the drawing, a suction head 10 includes an outer cylinder 12 slidably fitted to an inner cylinder constituted by a suction pipe 11. The outer cylinder 12 is rotatably connected to the suction head 10 at a distal end thereof as described later. That is, the distal end portion 12a of the outer cylinder 12 is formed in a substantially spherical shape, and the frame 13 of the suction head 10 has the distal end portion 1a.
A receiving portion 14 that rotatably supports 2a is formed. As shown in FIG. 2, the receiving portions 14 are configured such that the frame 13 contacts the spherical surface of the distal end portion 12a at a plurality of locations, and each receiving portion 14 has a contact piece made of rubber material or urethane material. 15 is attached, and a sphere of the tip 12a of the outer cylinder 12 is provided.
Section is slidably held.

The suction pipe 11 is provided at the tip 12a of the outer cylinder 12.
Through the suction head 10. In this case, a suction hole 16 serving as an insertion hole for the suction pipe 11 is formed in the distal end portion 12a of the outer cylinder 12. An opening 17 through which the suction pipe 11 penetrates is formed at the bottom of the frame 13 of the suction head 10. In addition, the tip of the suction pipe 11 is cut obliquely as shown.

Here, the outer cylinder 12 is rotatably connected to the suction head 10 at its distal end as described above. As shown in FIG. 1, when the angle of the outer cylinder 12 with respect to the suction head 10 is substantially a right angle (about θ = 90 °), the positions of the suction hole 16 and the opening 17 are aligned.
At this angular position of the outer cylinder 12, the suction pipe 11 can pass through the suction head 10 as shown in FIG. Note that a cover plate 18 is closed to the opening 17. The cover plate 18 rotates around a support shaft 19 to open and close the opening 17 and is urged in the closing direction by the elastic force of a spring (not shown).

In order to align the positions of the suction hole 16 and the opening 17, a positioning means 20 for positioning the angular position of the outer cylinder 12 is provided. This positioning means 20 is constituted by magnet pieces 21 and 22 provided respectively on the outer cylinder 12 and the frame 13 as shown in FIG. It is preferable in terms of handling that the magnetic force of the magnet pieces 21 and 22 be such that the outer cylinder 12 can be positioned and held and the outer cylinder 12 can be relatively easily moved by hand.

Further, when the suction pipe 11 penetrates the suction head 10, that is, when the outer cylinder 12 slides along the suction pipe 11, there is provided stopper means 23 for positioning and fixing the suction head 10 in the longitudinal direction of the suction pipe 11. are doing. For example, as shown in FIG. 1, the stopper means 23 has a circumferential groove 36 provided at a predetermined position of the outer cylinder 12, and an engagement biased by the coil springs 32, 32 above the circumferential groove 36. Two release buttons 33 are provided. Further, the suction pipe 11 is provided with projections 35 urged by a coil spring 34 at two locations in the circumferential direction.
The protrusion 35 projects into the circumferential groove 36 of the outer cylinder 12 to be engaged, and the engagement release buttons 33 provided at two places are pressed by a finger to move the suction pipe 11 in the vertical direction, thereby moving the circumferential groove 36. The engagement between the and the projection 35 is released. The protrusions 35 are provided at two places at predetermined intervals so that the suction pipe 11 is set in a state where the suction pipe 11 is retracted into the outer cylinder 12 and a state where the suction pipe 11 protrudes (see FIG. 4).

As another example of the stopper means 23, as shown in FIG. 5, a circumferential groove 25 is provided in the suction pipe 11, and a so-called ball plunger 24 is provided in a predetermined portion of the outer cylinder 12, so that the circumferential groove 25 is provided. A simple structure may be employed in which the ball plunger 24 is engaged.

In this embodiment, a dedicated suction hole 26 is further provided at the distal end portion 12a of the outer cylinder 12.
As shown in FIG. 2, two suction holes 26 are formed on both sides of the suction hole 16 in this example. Here, the suction head 10
A rotary brush 27 is attached to the front of the. The suction holes 16 and the suction holes 26 communicate with the housing of the rotating brush 27 via the suction passages 28a, 28b and 28c, respectively, so that the suction can be performed efficiently.

A rotary roller 29 may be provided at the rear of the suction head 10 as shown in FIG. In the above case, it is preferable to provide a rubber packing 30 along the inner periphery of the opening 17 as shown in FIG. 3 to secure airtightness when the cover plate 18 is closed.

In the above configuration, the lower projection 35 of the suction pipe 11 is engaged with the circumferential groove 36 of the outer cylinder 12 by the stopper means 23 during normal use of the suction head 10 using the rotating brush 27. As a result, the suction pipe 11 is retracted into the outer cylinder 12, and the suction head 10 can be used. In this case, the tip 3a of the tip 12a of the outer cylinder 12
The suction can be efficiently performed through the two suction holes 16 and 26. Further, since the distal end portion 12a of the outer cylinder 12 is rotatably connected to the suction head 10, the suction pipe 11 can be used together with the outer cylinder 12 by setting the suction pipe 11 at an arbitrary angle. To achieve.

On the other hand, the suction pipe 11 is inserted into the outer cylinder 12 so that the suction head 10 penetrates.
A crepe pipe or the like is constituted by itself. In this case, the upper protrusion 3 of the suction pipe 11 is
7 is engaged with the circumferential groove 36 of the outer cylinder 12. This allows
As shown in FIG. 4, the suction pipe 11 projects from the outer cylinder 12, and suction can be efficiently performed at the tip of the suction pipe 11. As described above, while the single suction head 10 has multi-functionality, each function is effectively exerted and excellent usability is provided.

In the above embodiment, a suction head for the rotary brush 27 and the like is provided on the tip 12a of the outer cylinder 12.
Although the example in which the two suction holes 26 for the end are provided has been described, the number and the like of the suction holes 26 can be appropriately set as needed.

[0022]

As described above, according to the present invention, a vacuum cleaner of this type can be used while freely rotating the suction pipe, so that smooth operation can be realized easily. In addition, since the suction pipe itself is used to form a crepass pipe or the like, time and effort for replacement and the like are reduced, and handling is easy without bulk. Also, the outer cylinder
Three suction holes in the sphere at the tip of
1 suction hole and 2 suction holes for suction head end
This improves efficiency from the suction passage formed in the suction head.
Can be sucked well. Further, there is an advantage that the configuration is relatively simple and the number of parts is small, thereby making it difficult to cause a failure and reducing the cost.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a configuration of a main part of an embodiment of a suction head unit for a vacuum cleaner according to the present invention.

FIG. 2 is a plan cross-sectional view showing a main part configuration in an embodiment of a suction head unit for a vacuum cleaner according to the present invention.

FIG. 3 is a bottom view of the suction head unit for a vacuum cleaner according to the embodiment of the present invention.

FIG. 4 is a side sectional view showing a state when a suction pipe protrudes in an embodiment of a suction head unit for a vacuum cleaner of the present invention.

FIG. 5 is a sectional view showing another example of the stopper means in the embodiment of the suction head unit for a vacuum cleaner of the present invention.

FIG. 6 is a diagram showing a configuration example around a suction pipe of a conventional vacuum cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Suction head 11 Suction pipe 12 Outer cylinder 13 Frame 14 Receiving part 15 Contact piece 16 Suction hole 17 Opening 18 Cover plate 20 Positioning means 23 Stopper means 26 Suction hole 27 Rotary brush 28a, 28b, 28c Suction path 29 Rotating roller 30 Rubber packing 33 Engagement release button

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-65825 (JP, A) JP-A-55-19143 (JP, A) JP-A 50-104471 (JP, U) JP-A 54-104471 93272 (JP, U) JP 7-12048 (JP, U) JP 7-13626 (JP, Y2) Table 2 500955 (JP, A) (58) Fields surveyed (Int. Cl. ⁷ , DB name) A47L 9/02

Claims (1)

(57) [Claims] 1. A suction head unit for a vacuum cleaner, wherein the suction head is connected to a cleaner body via a suction pipe, wherein the suction head includes an inner cylinder formed by the suction pipe and a suction pipe . spherical portion slidably fitted to the tip in a cylindrical can
With a formed outer cylinder, and three inside the suction head.
Is formed at the bottom and the suction pipe
An opening through which the pump penetrates is opened, and the spherical portion of the outer cylinder is inserted into a spherical space formed in the receiving portion of the suction head and rotatably fitted therein .
And the tip of this sphere is inserted through the suction pipe.
A suction hole that also serves as a hole is opened and both sides of the suction hole
Has two suction holes for the suction head end.
In addition , the above-mentioned tip portion and each suction hole on both sides correspond to the above-mentioned three suction passages.
A suction head unit for a vacuum cleaner characterized by being in communication with each other .