JPH1170061A - Gap nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a gap nozzle in a pipe, in which the gap nozzle can be used without replacing the pipe, and when the gap nozzle is not used, usual cleaning can be performed without disturbing the air flow in the pipe. SOLUTION: Two semi-cylindrical materials 2 with grooves whose cross section is ark-shaped are faced to each other, and are connected to a cylindrical material 4 through a connected part 3, and the semi-cylindrical materials 2 can be turned by a desired angle with the connected part 3 as an axis. With a suction port side pipe being connected, the two semi-cylindrical materials 2 are opened, and with the suction port side pipe being disconnected, the two semi-cylindrical materials 2 are closed to form a nozzle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a clearance nozzle of a vacuum cleaner.

[0002]

2. Description of the Related Art Conventionally, gap nozzles have been used by replacing pipes where they have been pulled out.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a gap nozzle is built in a holding pipe, and when used, a gap nozzle appears when the suction pipe is pulled out. The purpose of the present invention is to store the gap nozzle in a pipe so as to avoid the trouble of ordinary cleaning while securing the cross-sectional area so as to save time for detachment.

[0004]

SUMMARY OF THE INVENTION The problem is that two semi-cylindrical members having a groove having an arc-shaped cross section face each other, are connected to the cylindrical member via a connecting portion, and the connecting portion is connected to the shaft. When the suction-side pipe is inserted, the two semi-cylindrical members are opened, and when the suction-side pipe is removed, the two semi-cylindrical members are closed to form a nozzle. The problem is solved by adopting a structure as follows.

[0005] The semi-cylindrical member has a shape in which a hollow cylinder is vertically arranged halfway or a shape similar thereto, and has a groove having an arc-shaped cross section. The cross-section of an arc may be an arc, an ellipse, a U-shape, or a modified shape thereof. In short, it is only necessary to form a hole through which air can be formed when two are combined. The semi-cylindrical member having such a groove does not need to have the same width at both ends. If the width is made smaller at the tip, the tip of the nozzle formed when the nozzle is closed is thinner, which is convenient. Further, the semi-cylindrical member need not be straight, but may be bent at an intermediate portion. Although the tip is preferably cut diagonally, the tip of the upper part may be slightly rounded so as not to be too sharp. Also, when the semi-cylindrical member is closed to form a gap nozzle, one of the contact surfaces is concave, if necessary, for example, so as not to cause a large air leak from each contact surface.
The other structure may be a convex surface. This is also
It also serves as a guide for closing the semi-cylindrical member without shifting.

The cylindrical member has the shape of a hollow cylinder, and is used for holding the semi-cylindrical member and mounting it inside the holding pipe. Therefore, the cylindrical member is not necessarily a true cylinder.
It is deformed by the cross-sectional shape of the holding pipe.
The connecting portion is a portion connecting the two semi-cylindrical members to the cylindrical member. The semi-cylindrical member and the cylindrical member may be structurally and materially connected at the connecting portion, or may be connected. It is not necessary. When they are connected, it is preferable to make a cut or the like in the connecting portion to make it easy to bend.
If not connected, the connecting portions may be connected by a hinge or the like. In any case, the semi-cylindrical member rotates about the joint portion so that the two semi-cylindrical members can be opened and closed. Further, the holding pipe itself may be a cylindrical member. The holding pipe may be an independent pipe, a hand pipe or a connection pipe. Further, the suction port side pipe may be a pipe with a suction port or a connection pipe.

When the suction side pipe is pulled out and the gap nozzle is used, the two semi-cylindrical members are closed to form a gap nozzle, and conversely, the suction side pipe is inserted and the gap nozzle is closed. When not in use, the semi-cylindrical member is opened so as not to obstruct the flow of air. At this time, it is convenient that the semi-cylindrical member is automatically opened and closed only by inserting and removing the suction side nozzle.

In order for the two semi-cylindrical members to automatically open and rotate around the joint portion when the suction-side pipe is inserted, it is necessary to use the following method when the suction-side pipe is inserted.
It is preferable to provide a pawl, a leaf spring, a kick spring, or the like pressed by the wall on the semi-cylindrical member or the cylindrical member.

When the suction side pipe is pulled out, the two semi-cylindrical members are unexpectedly closed automatically when the vacuum cleaner is turned on to form a clearance nozzle. At this time, two semi-cylindrical members are formed along a portion where the two semi-cylindrical members are in contact with each other, or one of the contact surfaces between the semi-cylindrical members and the cylindrical member is convex and the other is concave. When the members are closed, they do not shift from each other, and air leakage can be prevented. To eliminate such a shift, a guide may be separately provided. Alternatively, the claw portion and the like may be cut at an angle such that the semi-cylindrical member is pressed when the semi-cylindrical member is closed so that no gap is generated.

When the suction side pipe is pulled out, the two semi-cylindrical members can be forcibly closed by the action of the closing mechanism member. For this purpose, parts such as leaf springs, springs, rubber bands and the like utilizing elastic force of metal, plastic, rubber or the like may be used as required, using the restoring force of the material itself.

Although the thickness of the pipe is usually such that the suction side pipe is inserted into the near side pipe, the gap nozzle can be formed in the same manner even when the suction side pipe is reversed. Also,
The gap nozzle may be fixed and installed in the pipe from the beginning, or the gap nozzle may be detachable as a component.

[0012]

In order to use the clearance nozzle of the present invention, the two semi-cylindrical members are opened by the action of the nails when the suction side pipe is inserted, but the suction side pipe is pulled out and cleaned. When the machine switch is closed and air begins to be drawn, the two semi-cylindrical members close to form a gap nozzle.

[0013] Alternatively, when the pipe passes through the suction side pipe, the two semi-cylindrical members are closed by the action of the closing mechanism member to form a gap nozzle. When cleaning the normal floor or folding, if the suction pipe is inserted, the two semi-cylindrical members open automatically and do not obstruct the passage of air, and the gap nozzle is stored in the pipe. Therefore, normal cleaning can be performed without detaching the gap nozzle each time. There is no gap nozzle having such a structure and operation.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. In the drawings, electrical connections and the like are omitted, and only essential parts are drawn. Example 1 FIG. 1 is a perspective view when a gap nozzle according to the present invention is used,
FIG. 2 shows a plan view at this time, FIG. 3 shows a left side view, FIG. 4 shows a front view, and FIG. 5 shows a cross-sectional view taken along line AA. On the other hand, FIG. 6 is a perspective view showing the appearance of the gap nozzle in the suction-side pipe when the gap nozzle is not used, that is, when the suction-side pipe is inserted, FIG. 7 is a plan view at this time, and FIG. And B
FIG. 9 shows a cross-sectional view taken along line -B. As described above, the gap nozzle according to the present invention, as shown in FIG.
When the semi-cylindrical members are automatically closed to form a nozzle, and the suction-side pipe is inserted for storage as shown in FIG.
The two semi-cylindrical members are opened automatically to enable normal cleaning without obstructing the flow of air. In order to do this, two semi-cylindrical members 2 having a groove 1 having an arc-shaped cross section are provided facing the cylindrical member 4 at the coupling part 3. In this embodiment, the semi-cylindrical member 2 and the cylindrical member 4 are structurally and materially connected without connecting the two parts at the connecting portion 3. The semi-cylindrical member 2 can be rotated at an appropriate angle about the joint 3 as an axis. At this time, the inside of the cut 5 is made thick and planar so that the bending can be performed well. When the switch of the vacuum cleaner is closed to use the gap nozzle, the two semi-cylindrical members 2 are automatically closed. At this time, the two semi-cylindrical members 2 are not shifted from each other, and air is used during use as the gap nozzle. 2 to prevent leakage
Along the portion where the two semi-cylindrical members 2 are in contact, one is a convex shape 19 and the other is a concave shape 20 so that the two semi-cylindrical members 2
When the is closed, these irregularities are fitted. When the gap nozzle is not used, if the suction side pipe 7 is inserted, the semi-cylindrical member 2 is formed by the pipe wall.
Of the two semi-cylindrical members 2
Are opened about the connecting portion 3 so as not to obstruct the passage of air, and the two semi-cylindrical members are accommodated along the inner wall surface of the suction-side pipe. In this embodiment, FIG.
This gap nozzle is attached to the holding pipe 9 as shown in FIG.
As a part, it can be attached to and detached from the connection part of each pipe of the vacuum cleaner. While the gap nozzle is in use, as shown in FIG.
The semi-cylindrical members 2 are closed to form a nozzle, and when cleaning a normal floor, folding, or the like, if the suction side pipe 7 is inserted as shown in FIG. 12, a semi-cylindrical member as shown in FIG. Since the member 2 is opened and stored in the suction side pipe,
It does not interfere with normal cleaning. FIG. 14 is an exploded view in which a brush pipe 10 incorporating a gap nozzle of the present invention and a suction port side pipe 7 are connected to a brush pipe 10 as one application example. Thus, one-touch operation can be performed when using a brush or a gap nozzle in addition to normal cleaning.

Embodiment 2 As shown in FIG. 15, in this embodiment, the semi-cylindrical member 2 and the cylindrical member 4 are structurally separated from each other, 2
And the cylindrical member 4 are connected. The claws 17 with covers cover the rotation shaft 18 so as not to come off, and are provided with claws for opening the semi-cylindrical member 2.
FIG. 16 is a sectional view of a gap nozzle formed by using the connection method as shown in FIG. 15, and FIG. 17 is a side view. When the suction pipe 7 is pulled out and the switch of the vacuum cleaner is closed, the semi-cylindrical member 2 automatically closes to form a gap nozzle. on the other hand,
When the suction side pipe 7 is inserted, the claws of the claws 17 with the cover are pushed by the wall surface thereof, and the two semi-cylindrical members 2 are pressed.
Is automatically opened and the semi-cylindrical member 2 is housed in the suction side pipe 7.

Embodiment 3 FIG. 18 is a perspective view of a gap nozzle according to the present invention, FIG. 19 is a plan view, FIG. 20 is a left side view, FIG. 21 is a front view, and FIG. Figure 2
It is shown in FIG. On the other hand, FIG. 23 is a perspective view showing a state of the gap nozzle in the suction-side pipe 7 when the gap nozzle is not used, that is, when the suction-side pipe 7 is inserted, and a plan view at this time is shown in FIG. FIG. 26 is a sectional view taken along line FF in FIG. As described above, the gap nozzle of the present invention has the structure shown in FIG.
When the suction side pipe 7 is pulled out for use as shown in FIG. 8, the two semi-cylindrical members automatically close to form a nozzle, and as shown in FIG. When the member 7 is inserted, the two semi-cylindrical members are automatically opened to enable normal cleaning without obstructing the flow of air. In order to do so, a groove 1 having an arc-shaped cross section
And two semi-cylindrical members 2 having the following structure. In this embodiment, the semi-cylindrical member 2 and the cylindrical member 4 are structurally connected instead of connecting the two parts at the connecting portion 3, and the connecting portion 3 is provided with a notch 5 and bent at this portion. Make it possible
The semi-cylindrical member 2 is adapted to be able to rotate appropriately about the joint 3 as an axis. At this time, the inside of the cut 5 is made thick and planar so that the bending can be performed well. An arc-shaped leaf spring is used as the closing mechanism member 6, and during use as a gap nozzle, this function causes
The semi-cylindrical members 2 are closed. Semi-cylindrical member 2
The cylindrical member 4 has a convex shape 19 on one side and a concave shape 2 on the other side to prevent air from leaking during use as a gap nozzle.
When the two semi-cylindrical members 2 are closed, these irregularities are fitted. This unevenness is 2
The semi-cylindrical members 2 also serve as guides for closing without shifting. When the gap nozzle is not used, if the suction port side pipe 7 is inserted, the claw 8 provided at the end of the semi-cylindrical member 2 is pushed by the pipe wall, and the two semi-cylindrical members 2 connect the joining portion 3. It opens as a shaft and does not obstruct the passage of air. In this embodiment, FIG.
As described above, this gap nozzle is attached to the holding pipe 9 to make it a single component, and can be attached to and detached from a connection portion of each pipe of the vacuum cleaner. During use of the gap nozzle, as shown in FIG. 28, the two semi-cylindrical members 2 are closed by a closing mechanism member 6, in this example, a leaf spring to form a nozzle. If the suction-side pipe 7 is inserted as shown in FIG. 29, the semi-cylindrical member 2 is opened and housed in the suction-side pipe 7 as shown in FIG. FIG. 31 is an exploded view of connecting the pipe 11 incorporating the gap nozzle of the present invention and the suction pipe 7 to the brush pipe 10 as one application example. Thus, one-touch operation can be performed when using a brush or a gap nozzle in addition to normal cleaning.

Embodiment 4 As shown in FIG. 33, in this embodiment, the closing mechanism member 6 is structurally and materially separated by a plate spring as shown in FIG. Semi-cylindrical member 2 and cylindrical member 4
Are connected by a connecting portion 3 so that the semi-cylindrical member 2 is closed when the gap nozzle is used.

Embodiment 5 As shown in FIG. 34, in this embodiment, a kick spring is used as the closing mechanism member 6 instead of the leaf spring in the fourth embodiment.

Embodiment 6 As shown in FIG. 36, this embodiment is different from Embodiment 3 and shows an example of a structure having no pawl 8. A closing mechanism member 6 as shown in FIG. 35 is attached to the outside of the semi-cylindrical member 2 and the cylindrical member 4, and these are joined at the joining portion 3. FIG. 37 is a sectional end view when the gap nozzle is mounted on the holding pipe 9. When the nozzle is used, the two semi-cylindrical members 2 are closed by the closing mechanism member 6 to form a nozzle. FIG. 38 is a cross-sectional end view showing a state in which the suction-side pipe 7 is inserted when the nozzle is not used. The closing mechanism member 6 works by the wall of the suction-side pipe 7 to open the semi-cylindrical member 2.

Embodiment 7 A kick spring as shown in FIG. 39 may be used instead of the leaf spring of Embodiment 6 for the closing mechanism member 6.

Embodiment 8 A kick spring as shown in FIG. 40 is provided in the holding pipe 9 in place of the leaf spring in the embodiment 3 in place of the closing mechanism member 6, and when the suction port side pipe 7 is pulled out, the kick cylinder makes the semi-cylindrical member 2 FIG. 41 and FIG. 4 show an example of a structure in which is closed and opened when the suction side pipe 7 is inserted.
It is shown in FIG.

Embodiment 9 In Embodiment 3, if the shape of the semi-cylindrical members 2 is as shown in FIG. 43, when they are closed to form a gap nozzle, the thickness is reduced to the root of the nozzle. This is shown in FIGS. 43 and 44.

[0023]

【The invention's effect】

(1) Since the gap nozzle is built in the pipe, it is not necessary to attach and detach the gap nozzle. (2) There is no need to carry the gap nozzle with the vacuum cleaner during cleaning. (3) Despite the fact that the gap nozzle is built in, the structure of the present invention does not impair the flow of air even with normal cleaning, and does not hinder at all. (4) Because of the structure as in the present invention, mass production can be performed at low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part when a gap nozzle is used.

FIG. 2 is a plan view of FIG.

FIG. 3 is a left side view of FIG.

FIG. 4 is a front view of FIG. 1;

FIG. 5 is a sectional view taken along line AA of FIG. 3;

FIG. 6 is a perspective view of a main part when the gap nozzle of FIG. 1 is not used.

FIG. 7 is a plan view of FIG. 6;

FIG. 8 is a front view of FIG. 6;

FIG. 9 is a sectional view taken along line BB of FIG. 7;

FIG. 10 is a side view of a main part at the time of use in which the gap nozzle of FIG. 1 is mounted on a holding pipe.

11 is a cross-sectional end view taken along the line CC of FIG. 10;

FIG. 12 is a side view of a main part in a state where a suction port side pipe is inserted into FIG. 10;

FIG. 13 is a sectional end view taken along line DD of FIG. 12;

FIG. 14 is an exploded view including the gap nozzle of the present invention.

FIG. 15 is a cross-sectional end view of a coupling portion showing another example of the present invention.

16 is a sectional view of the gap nozzle using FIG.

FIG. 17 is a side view of the gap nozzle using FIG.

FIG. 18 is a perspective view of a main part when a gap nozzle is used, showing another example of the present invention.

FIG. 19 is a plan view of FIG. 18;

FIG. 20 is a left side view of FIG. 18.

FIG. 21 is a front view of FIG. 18;

FIG. 22 is a sectional view taken along line EE of FIG. 20;

FIG. 23 is a perspective view when the gap nozzle of FIG. 18 is not used.

FIG. 24 is a plan view of FIG. 23;

FIG. 25 is a front view of FIG. 23;

26 is a sectional view taken along line FF of FIG. 24.

FIG. 27 is a side view when the gap nozzle of FIG. 18 is mounted on a holding pipe.

FIG. 28 is a sectional end view taken along line GG of FIG. 27;

FIG. 29 is a side view showing a state where the suction port side pipe is inserted into FIG. 27;

30 is a sectional end view taken along line HH of FIG. 29;

FIG. 31 is an exploded view including the gap nozzle of the present invention.

FIG. 32 is a perspective view of a closing mechanism member showing another example of the present invention.

FIG. 33 is a sectional view of a gap nozzle using the closing mechanism member of FIG. 32;

FIG. 34 is a sectional view of a gap nozzle showing another example of the present invention.

FIG. 35 is a perspective view of a closing mechanism member showing another example of the present invention.

FIG. 36 is a side view of a gap nozzle using the closing mechanism member of FIG. 35;

FIG. 37 is a sectional end view taken along line II of the gap nozzle of FIG. 36 mounted on a holding pipe.

FIG. 38 is a sectional end view showing a state where the suction port side pipe is inserted into FIG. 37.

FIG. 39 is a perspective view of a closing mechanism member showing another example of the present invention.

FIG. 40 is a perspective view of a closing mechanism member showing another example of the present invention.

41 is a sectional end view of a gap nozzle using the closing mechanism member of FIG. 40.

FIG. 42 is a cross-sectional end view of a state where the suction port side pipe is inserted into FIG. 41.

FIG. 43 is a plan view showing a state when a gap nozzle according to another embodiment of the present invention is used.

FIG. 44 is a plan view showing the state of FIG. 43 when not in use.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Groove 2 Semi-cylindrical member 3 Joining part 4 Cylindrical member 6 Closing mechanism member

Claims (2)

[Claims] 1. A semi-cylindrical member (2) having a groove (1) having an arc-shaped cross section is connected to a cylindrical member (4) via a coupling portion (3) with two semi-cylindrical members facing each other. A gap nozzle capable of rotating at a required angle around the joint (3). 2. The gap nozzle according to claim 1, wherein a closing mechanism member (6) is provided at or around the semi-cylindrical member (2).