JP2001161603A - Suction/discharge apparatus with dual-purpose nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To develop a novel suction/discharge switching structure to meet the demand to unite conventional two nozzles for suction and discharge to miniaturize and lighten a suction/discharge apparatus. SOLUTION: At the time of sucking operation, a switching member 2 covers an air inducing hole 10 to make a dual-purpose nozzle 6 communicate with a channel Wi and a channel Wo with a discharge nozzle 16. At the time of discharging operation, the switching member 2 opens the air inducing hole 10 to block the communication between the dual-purpose nozzle 6 and the channel Wi and the switching member 2 makes the channel Wo communicate with the dual-purpose nozzle 6 to block its communication with the discharge nozzle 16. With such switching structure two nozzles can be united to make a dual-purpose nozzle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction / discharge device capable of performing both a suction operation and a discharge operation with a single device.

[0002]

2. Description of the Related Art A suction / discharge device capable of performing both a suction operation for sucking dust and the like and a discharge operation for blowing off dust and the like by switching and using it has been developed, and is described in U.S. Pat. No. 4,870,714. ing. The device comprises a main body, a fan rotating inside the main body,
A power unit for rotating the fan, and a discharge port and an inlet are formed on the surface of the main body. At the time of suction work, a suction nozzle is set at the introduction port, a dust collection bag is attached to the discharge port, dust and the like are sucked from the tip of the suction nozzle, and the sucked dust and the like are collected in the dust collection bag. At the time of discharge work, a filter is attached to the introduction port, a discharge nozzle is set at the discharge port, and air is discharged from the tip of the discharge nozzle to blow off dust and the like. This device can perform both suction and discharge operations with one device, but the switching operation is troublesome.

[0003] A technique for solving the trouble of the switching operation is described in International Publication WO97 / 30620.
The apparatus will be described with reference to schematic diagrams (FIGS. 6 and 7). In the suction / discharge device shown in FIGS. 6 and 7, the base ends of the suction nozzle 56 and the discharge nozzle 57 are connected to the main body 200. The suction nozzle 56 and the discharge nozzle 57 are arranged in parallel and fixed integrally. Main unit 20
The fan 62 is rotatably accommodated in the inside of the motor 0, and the fan 62 is rotated by a motor 64. Main body 200
Are provided with a discharge port 68 and an introduction port 60 on the surface thereof.

This suction / discharge device discharges dust and the like sucked from a suction port 58 at the tip of a suction nozzle 56 through a discharge port 68, and sends air introduced through an inlet 60 through a discharge port 59 at a tip of a discharge nozzle 57. It is possible to switch between the state of discharging and the state of discharging. The switching mechanism for this includes a first switching valve 52 rotatably supported by the main body 200 at a first fulcrum 54 and a second switching valve 53 rotatably supported by the main body 200 at a second fulcrum 55. And a switching operation member (not shown).

At the time of the suction operation, as shown in FIG. 6, the first switching valve 52 shields the introduction port 60, makes the suction nozzle 56 communicate with the flow path 5Wi (the suction side flow path of the fan 62), and The valve 53 shuts off the flow path 5Wo (the discharge side flow path of the fan 62) and the discharge nozzle 57, and connects the flow path 5Wo and the discharge port 68. When the operation switch is turned on in this state, the motor 62 fixed to the main body 200 rotates the fan 62. Then, as shown by the arrow FIi,
Dust and the like are sucked from the suction port 58 at the tip of the suction nozzle 56, and the sucked dust and the like are discharged to the suction nozzle 56, the first switching valve 52, the channel 5Wi, the fan 62, the channel 5Wo, the second switching valve 53, and the discharge port. Through the outlet 68, it is led to a dust bag (not shown) set in the discharge port 68.

[0006] During the discharging operation, the first switching valve 52 opens the inlet 60 as shown in FIG. At the same time, the connection between the suction nozzle 56 and the flow path 5Wi is shut off. Further, the second switching valve 53 makes the flow path 5Wo communicate with the discharge nozzle 57 and, at the same time, shuts off the flow path 5Wo and the discharge port 68. When the operation switch is turned on in this state, the fan 62 rotates. Then, as indicated by an arrow FOi, the air sucked from the inlet 60 is supplied to the first switching valve 52, the flow path 5Wi, the fan 62, the flow path 5Wo, the second switching valve 53, and the discharge nozzle 5
After passing through 7, the ink is discharged from the discharge port 59 at the tip of the discharge nozzle 57.

[0007]

In the suction / discharge apparatus described in the above-mentioned International Publication, when the suction operation and the discharge operation are switched, the suction nozzle and the filter are replaced, and the dust collecting bag and the discharge bag are discharged. No need to replace the nozzle
The switching operation is simple. However, two nozzles,
That is, the suction nozzle 56 and the discharge nozzle 57 are
It is connected to the. For this reason, the diameter of the entire nozzle increases,
There is a problem that it is difficult to perform suction or discharge operation by inserting a nozzle into a small gap. An object of the present invention is to realize an apparatus capable of performing both a suction operation and a discharge operation with a single nozzle for both suction and discharge.

[0008]

SUMMARY OF THE INVENTION A suction / discharge device according to the present invention comprises a main body, a dual nozzle having a base end connected to the main body, and a fan rotating inside the main body. ,
A power unit for rotating the fan is provided. And
A state in which the two-way nozzle is sucked from the tip of the dual-purpose nozzle by the rotation of the fan and discharged from a discharge port formed in the main body, and the dual-use is introduced from the introduction port formed in the main body by the rotation of the fan. The state of discharge from the tip of the nozzle can be switched. This suction and discharge device uses one dual-purpose nozzle as a suction nozzle,
It can be used as a discharge nozzle, has only one nozzle, and can be operated in a small gap.

Another object of the present invention is to provide a main body, a dual nozzle whose base end is connected to the main body, a fan rotating inside the main body, a power unit for rotating the fan, A discharge port and an introduction port that open on the surface of the main body,
It is housed inside the main body, communicates between the dual use nozzle and the discharge port via the fan, and shuts off between the fan and the introduction port, and communicates between the dual use nozzle and the introduction port via the fan The present invention is also solved by a suction / discharge device provided with a switching member movable between a fan and a position for shutting off between the discharge port. This device also uses a single dual-purpose nozzle, and enables work in small gaps.

[0010] In particular, it is preferable that the switching member is constituted by a single member having an outer shape and an inner shape, and the communication state and the cutoff state between the flow paths are switched by the outer shape and the inner shape. According to this structure, the switching mechanism is simplified.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an outline of an embodiment of the present invention will be described with reference to FIGS. The suction / discharge device includes a main body 100, one dual-use nozzle 6 having a base end 7 connected to the main body 100, and a main body 10.
0, a power unit (specifically, a motor 14) for rotating the fan 12, and the rotation of the fan 12 sucks air, dust, and the like from the cylindrical port 8 at the tip of the dual use nozzle 6. In which the liquid is discharged from the discharge port 18 formed in the main body 100 (shown in FIG. 1).
And a state in which air is introduced from an inlet 10 formed in the main body 100 by the rotation of the fan 12 and is discharged from the cylindrical port 8 at the tip of the dual use nozzle 6 (shown in FIG. 2).
And can be switched. Therefore, the main body 100
The switching member 2 is housed inside the switching member 2.
Is a position (the position shown in FIG. 1) that communicates between the dual-use nozzle 6 and the discharge port 18 via the fan 12 to block between the fan 12 and the introduction port 10. It is possible to move between a position (the position in FIG. 2) where the space is communicated and the fan 12 and the discharge port 18 are shut off.

At the time of the suction operation, as shown in FIG. 1, the switching member 2 shields the air inlet 10 and makes the dual-purpose nozzle 6 communicate with the flow path Wi (the suction side flow path of the fan 12).
o (the discharge-side flow path of the fan 12) is communicated with the discharge port 18. When the operation switch is turned on in this state, the fan 12 is rotated by the motor 14. Then the arrow FI
As shown in i, dust and the like sucked from the cylindrical port 8 at the tip of the dual-purpose nozzle 6 are discharged from the dual-purpose nozzle 6, the inside of the switching member 2, the flow path Wi, the fan 12, the flow path Wo, the outside of the switching member 2, and the discharge port. After that, the ink is discharged as shown by an arrow FIo and guided to a dust bag (not shown).

At the time of the discharge operation, as shown in FIG. 2, the switching member 2 opens the introduction port 10 to make the introduction port 10 communicate with the flow path Wi, and at the same time, shuts off the dual use nozzle 6 and the flow path Wi. At the same time, the switching member 2 makes the flow path Wo and the dual-purpose nozzle 6 communicate with each other, thereby cutting off the communication between the flow path Wo and the discharge port 18. When the operation switch is turned on in this state, the fan 12 rotates. Then, as shown by the arrow FOi, the air sucked from the inlet 10 passes through the outside of the switching member 2, the flow path Wi, the fan 12, the flow path Wo, the inside of the switching member 2, and the cylindrical port 8 at the tip of the dual use nozzle 6. Discharge is performed as shown by arrow FOo.

An embodiment of the present invention will be described below in detail with reference to the drawings. 3 and 4 show the overall configuration of a suction / discharge device using the present invention. In the suction / discharge device of this embodiment, the base end 7 of the dual-purpose nozzle 6 is
Is connected to the main body 100 so as to be foldable. The dual-purpose nozzle 6 has a tubular shape, and a tubular port 8 is formed at the tip thereof. The tire 4 is located near the cylinder opening 8.
2 is rotatably supported. The dual-purpose nozzle 6 is swingable around a rotation shaft 40, and is fixed to the nozzle stop 36 provided on the main body 100 so that the base end 7 of the dual-purpose nozzle 6 is locked so as not to swing. In the suction / discharge device according to the present embodiment, the dual-use nozzle 6 uses the rotating shaft 40 to rotate the main body 1.
It is supported so as to be foldable at 00, but it may have a detachable structure. Alternatively, the base end 7 of the dual-purpose nozzle 6 may be fixedly connected to the main body 100.

Inside the main body 100, a flow path 102 extending substantially linearly from the dual-purpose nozzle 6 side, a space 104 for movably accommodating the switching member 2, and a substantially U-shaped flow path Wi
And Wo are formed. The motor 14 is fixed inside the main body 100. The output shaft of the motor 14 extends in a direction substantially perpendicular to the dual-purpose nozzle 6. A fan 12 is fixed to the output shaft of the motor.
2 rotates with the output shaft. The fan 12 is located between the flow paths Wi and Wo. If the material of the fan 12 is a hard resin, fallen leaves and the like sucked into the device can be crushed, and if a metal such as steel is used, a higher crushing strength can be obtained.

The accommodation space 10 for the switching member 2 of the main body 100
An inlet 10 is provided on the surface of the fourth channel Wi side.
A filter is set in the inlet 10 to remove foreign matter from the introduced air. In the present embodiment, the inlet 10 is formed on the same surface as the surface of the main body 100, but may be in the form of a nozzle and protrude from the surface of the main body 100. Also, instead of a filter being set at the air inlet 10 itself, a filter is inserted at the inlet 10.
May be connected. The discharge port 18 is provided on the surface of the housing space 104 of the switching member 2 of the main body 100 on the side of the flow path Wo. The discharge port 18 is formed at the tip of the discharge nozzle 16.

The accommodation space 10 for the switching member 2 of the main body 100
4, the switching member 2 is accommodated by the pin 4 so as to be swingable. The switching member 2 has a cylindrical shape as a whole, and at the time of the suction operation shown in FIG. 3, the external shape of the switching member 2 shields the introduction port 10, allows the flow path Wo to communicate with the discharge port 18, and allows the flow path Wo and the dual-use nozzle 6. The space is shielded, and the internal shape thereof allows the flow path Wi and the dual-purpose nozzle 6 to communicate with each other. FIG.
In the discharge operation shown in FIG. 7, the switching member 2 has an outer shape that shuts off the flow path Wi and the dual-purpose guide 6, communicates the flow path Wi with the introduction port 10, and cuts off the flow path Wo and the discharge port 18. The internal shape of the member 2 allows the flow path Wo and the dual-purpose nozzle 6 to communicate with each other.

That is, when the switching member 2 is switched to the position shown in FIG. 3, the suction-side flow path Wi of the fan 12 communicates with the dual nozzle 6 via the flow path 102 due to the internal shape of the switching member 2. The inlet 10 depends on the outer shape of the switching member 2.
Be cut off from. For this reason, when the fan 12 rotates,
Air, dust, and the like are sucked from the cylindrical port 8 at the tip of the dual-purpose nozzle 6 and are not introduced from the inlet 10. In this switching position, the discharge side flow path Wo of the fan 12 communicates with the discharge port 18 due to the outer shape of the switching member 2, so that dust and the like sucked from the cylindrical port 8 at the tip of the dual use nozzle 6 are discharged from the discharge port 18. Is done. At this time, the flow path Wo and the flow path 102 are shut off by the outer shape of the switching member 2.

When the switching member 2 is switched to the position shown in FIG. 4, the suction-side flow path Wi of the fan 12 communicates with the introduction port 10 and the suction-side flow path Wi of the fan 12 depends on the outer shape of the switching member 2. And the dual use nozzle 6 is shut off. For this reason, when the fan 12 rotates, the air is sucked from the inlet 10 and not from the dual-purpose nozzle 6. In this switching position, the discharge-side flow path Wo of the fan 12 communicates with the dual-purpose nozzle 6 via the flow path 102 due to the internal shape of the switching member 2, and air is discharged from the cylindrical port 8 at the tip of the dual-purpose nozzle 6. At this time, the flow path Wo depends on the outer shape of the switching member 2.
And the discharge port 18 is shut off.

The switching member 2 switches the position with the pin 4 as a fulcrum by moving the operation member S shown in FIG.

The main body 100 is provided with a handle 32 as shown in FIGS. An operation switch 34 is provided on the handle 32. In the present embodiment, the operation switch 34 is provided on the handle 32. However, the installation position of the operation switch 34 is not limited to this, and may be provided at another location.

As shown in FIG. 3, the main body 100
Of the dust bag 20 can be inserted into the discharge nozzle 16. The dust bag 20 is fixed to the main body 100 by the claws of the cylindrical portion 22. The dust bag 20 and the main body 100 are kept airtight by the inner surface of the cylindrical portion 22 and the outer surface of the discharge nozzle 16 and are detachable. Dust collection bag 2
0 are provided with hooks 24 and 28, and the hooks 26 are provided on the dual-purpose nozzle 6 and the hooks 30 provided on the main body 100, respectively. Be detained.

The configuration of the suction / discharge device according to the present embodiment has been described above. Hereinafter, the operation will be described. FIG.
Indicates a state in which the position of the switching member 2 has been switched to a position for the suction operation, and corresponds to a case where the operation member S shown in FIG. 5 is at the solid line position. At this time, the switching member 2 is
0 is shielded to allow communication from the dual use nozzle 6 to the flow path Wi, and communication from the flow path Wo to the discharge nozzle 16. That is, the cylindrical port 8 of the dual-purpose nozzle 6, the inside of the switching member 2, and the flow path W
i, a fan 12, a flow path Wo, an outside of the switching member 2, and a single flow path guided to the dust collection bag 20 through the discharge port 18 of the discharge nozzle 16. In this state, the operation switch 34
Is operated to turn on the fan, the fan 12 rotatably attached to the motor 14 fixed to the main body.
Rotates. Then, the dust and the like sucked from the cylinder opening 8 of the dual-purpose nozzle 6 are, as shown by the arrow FI, the dual-purpose nozzle 6,
The inside of the switching member 2, the flow path Wi, the fan 12, the flow path Wo,
It is guided to the dust collecting bag 20 via the discharge port 18 of the discharge nozzle 16 outside the switching member 2.

Normally, when working on the suction / discharge device of the present embodiment, the worker holds the handle 32 so that the cylinder opening 8 is directed to the floor or the like, and sucks dust or the like. At this time, if the dust or the like is sucked by rolling the tire 42 on a floor or the like, the work is easy.

After the suction operation, the hooks 24, 2
The hook portion 26 provided on the dual-purpose nozzle 6 and the main body portion 100
, The cylindrical portion 22 is removed from the discharge nozzle 16 of the main body 100, the dust bag 20 is separated from the main body 100, and the accumulated dust and the like can be discarded. Further, by connecting a hose or the like to the discharge nozzle 16, dust and the like during the suction operation can be sent to an external dust collection tank and the like. Since the discharge nozzle 16 or the cylindrical portion 22 is provided with a lid mechanism (not shown),
0 is removed from the main body 100, dust and the like still remain in the dust collection bag 20.
Or do not scatter from the main body. Of course, the lid mechanism has no adverse effect on the suction operation.

Next, the operation during the discharging operation will be described with reference to FIG. This corresponds to the case where the operation member S shown in FIG. 5 is at the position indicated by the two-dot chain line. At this time, as shown in FIG.
The switching member 2 opens the introduction port 10 to cut off the communication between the dual nozzle 6 and the flow channel Wi, and the switching member 2 communicates from the flow channel Wo to the dual nozzle 6 so that the flow channel Wo and the discharge nozzle 16 are separated.
Block communication between them. That is, the inlet 10 and the switching valve 2
Outside, flow path Wi, fan 12, flow path Wo, switching member 2
, A single flow path that is guided to the outside through the cylindrical opening 8 of the dual-purpose nozzle 6 is formed. In this state, the operation switch 3
4 is turned on by operating the main body 100
The fan 12 attached to the motor 14 fixed to the motor rotates. Then, the air introduced from the inlet 10 is
As shown by an arrow FO, outside the switching member 2, the flow path Wi,
It is discharged to the outside through the fan 12, the channel Wo, the inside of the switching member 2, and the cylinder opening 8 of the dual-purpose nozzle 6.

Normally, when working on the suction / discharge device of the present embodiment, the operator discharges air by holding the handle 32 and directing the cylinder opening 8 to the floor or the like. At this time, if the air is discharged by rolling the tire 42 on a floor or the like, the work is easy.

During the discharging operation, the hooks 24, 2
8 can be removed from the hook 26 provided on the dual-purpose nozzle 6 and the hook 30 provided on the main body, respectively, and the cylindrical portion 22 can be pulled out of the main body to separate the dust bag 20 from the main body 100. If the device itself is made compact and lightweight, the work becomes easier. The switching member 2 ensures that the flow path W
Since the communication from o to the discharge nozzle 16 is blocked, no air is discharged from the discharge nozzle 16.

FIG. 5 shows the suction / discharge device according to the present embodiment, in which the dust collecting bag 20 is detached from the main body 100 and the nozzle stopper 36 provided at one end of the main body 100 is moved from the base end 7 of the dual use nozzle 6. In this state, the dual-purpose nozzle 6 is rotated around the rotation shaft 40 as a rotation center until the dual-use nozzle 6 comes into contact with the discharge nozzle 16. When the dual-use nozzle 6 is stored in the storage state when the device is not used or at the time of display at the store, the tubular dual-use nozzle 6 does not become an obstacle, and space can be saved.

Further, in the present embodiment, the dual-purpose nozzle is rotatable about the rotary shaft 40. However, the present invention is not limited to this, and the dual-purpose nozzle 6 may have a structure detachable from the main body. Further, the dual-purpose nozzle may be bellows-shaped.

In the switching mechanism of the suction / discharge device according to the present embodiment, even if the operation member S is displaced from the suction work position due to carelessness during the suction work, the suction by the fan 12 is started when the suction operation is started. By the action, the switching member 2 moves to the home position, that is, the suction operation position. Further, even if the operation member S is shifted from the discharge work position, when the discharge operation is started, the switching member 2 is moved to the home position, that is, the discharge work position by the action of the fan 12.

[0032]

Since the present invention is configured as described above, the following effects can be obtained. According to the suction / discharge / discharge device according to the first and second aspects, the suction of dust and the like and the discharge operation of air can be performed with a single dual-purpose nozzle. Since it does not require two nozzles, a suction nozzle and a discharge nozzle,
It is possible to work in a narrow space as compared with a conventional suction / discharge device. Further, when the switching mechanism is constituted by one movable member, a simple structure can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a suction / discharge device of the present invention during a suction operation.

FIG. 2 is a schematic view of a suction / discharge device according to the present invention during a discharge operation.

FIG. 3 is a cross-sectional view of the suction / discharge device of the embodiment during a suction operation.

FIG. 4 is a cross-sectional view of the suction / discharge device of the embodiment during a discharge operation.

FIG. 5 shows a state in which the dual-use nozzle 6 of the suction / discharge device of the embodiment is housed.

FIG. 6 is a schematic view of a conventional suction / discharge device during a suction operation.

FIG. 7 is a schematic diagram of a conventional suction / discharge device during discharge operation.

[Explanation of symbols]

 2. Switching member 4. Pin 6. Dual-purpose nozzle 10. Introduction port 18. Discharge port 40. Rotary shaft

Claims (3)

[Claims] 1. A fan comprising: a main body; a dual nozzle having a base end connected to the main body; a fan rotating inside the main body; and a power unit for rotating the fan. Suction from the tip of the dual-purpose nozzle by the rotation of and discharge from the discharge port formed in the main body,
A suction / discharge device capable of switching between a state of being introduced from an introduction port formed in the main body portion and being discharged from a tip of the dual-purpose nozzle by rotation of the fan. 2. A main body, one dual-use nozzle having a base end connected to the main body, a fan rotating inside the main body, a power unit for rotating the fan, and the main body. A discharge port and an introduction port that are open on the surface of the, a position that is housed inside the main body, communicates between the dual-purpose nozzle and the discharge port via the fan, and shuts off the fan and the introduction port,
A suction / discharge device including a switching member that communicates between the dual-use nozzle and the introduction port via the fan and is movable between a position where the fan and the discharge port are shut off. 3. The switching member according to claim 2, wherein the switching member is formed of a single member having an outer shape and an inner shape, and switches between a communication state and a cutoff state between the flow paths according to the outer shape and the inner shape. The suction / discharge device according to the above.