JPH0243330Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a vacuum cleaner, and relates to a structure in which the exhaust system can be switched between centralized exhaust and distributed exhaust.

(Prior Art) As shown in FIG. 8, an electric blower 2 is disposed inside a vacuum cleaner body 1, and a distributed exhaust port 3 communicating with the exhaust side of the blower 2 is opened at the rear surface of the body 1. Vacuum cleaners are known. Further, there is also a structure in which an accessory storage body 6, which has a substantially cylindrical storage recess 5 into which an accessory 4 is fitted, is removably attached to the upper surface of the rear side of the vacuum cleaner main body 1. It is taken.

In this type of vacuum cleaner, in order to switch from distributed exhaust to centralized exhaust, conventionally, an attachment 8 with a centralized exhaust port 7 opened is detachably attached from the rear side of the vacuum cleaner body 1 so as to cover the distributed exhaust port 3. A hose or the like is connected to this central exhaust port 7.

However, in the above-mentioned conventional structure, since the attachment 8 is used to change the distributed exhaust to the concentrated exhaust, there are problems in that it takes time and effort to attach and detach the attachment 8, and that the attachment 8 is easily lost. In addition, with this structure, even when performing distributed exhaust, the attachment 8 tends to be used with the attachment 8 attached, and even though distributed exhaust is performed, the load on the electric blower 2 increases unnecessarily. There was a problem that caused the life of the blower 2 to be shortened.
Furthermore, since the attachment 8 is an accessory separate from the vacuum cleaner main body 1, the packaging size becomes large and the number of attachments is small, resulting in disadvantages in terms of distribution.

Furthermore, as described in Japanese Utility Model Application Publication No. 51-150672, a primary exhaust chamber facing the electric blower and a secondary exhaust chamber communicating with the chamber are formed at the rear of the vacuum cleaner body. At the rear of the main body, a distributed exhaust port is opened facing the secondary exhaust chamber, and a centralized exhaust port is opened facing the primary exhaust chamber below, and between the centralized exhaust port and both exhaust chambers. A rotatable lid is provided that selectively opens and closes the communication port, and a hose removably inserted into the central exhaust port is used to rotate the lid to open the central exhaust port and open the communication port. A vacuum cleaner whose mouth is closed has been proposed.

Unlike the vacuum cleaner shown in Figure 8, this conventional vacuum cleaner has a central exhaust outlet formed directly on the vacuum cleaner body, so there is no risk of losing the attachment, and the exhaust system is It does not take much time to switch, and there is no need to forget to remove the attachment during distributed exhaust, thereby causing an unnecessary increase in load on the electric blower, and there is no disadvantage in distribution.

By the way, when cleaning a narrow place such as a staircase, it is better to be able to clean with the long vacuum cleaner main body in the front and back direction standing upright with the main body facing down. However, in conventional vacuum cleaners, both the one shown in Fig. 8 and the one described in the above-mentioned publication, both the vacuum cleaner shown in Fig. 8 and the one described in the above-mentioned publication have a distributed exhaust port and a centralized exhaust port on the rear surface of the vacuum cleaner body. In some cases, it was not possible to clean the vacuum cleaner with its rear side facing down. In addition, the central exhaust port is located at the bottom of the rear of the vacuum cleaner, making it difficult to blow the concentrated exhaust air from the hose into high places.

(Problem that the invention attempts to solve) As mentioned above, even if a vacuum cleaner has a central exhaust outlet directly on the vacuum cleaner body rather than a detachable attachment, the central exhaust outlet is located at the bottom of the rear of the vacuum cleaner body. Because of this, it was not possible to clean with the vacuum cleaner body upright with its rear face facing down during concentrated exhaust, and it was also difficult to spray the concentrated exhaust from the hose to high places.

Therefore, it is conceivable to provide a central exhaust outlet on the top side of the cleaner body. On the other hand, the accessory storage recess shown in Figure 8 not only improves operability when attaching and detaching accessories, but also allows accessories to be attached and detached while the vacuum cleaner body is upright with its back facing down. In order to do this, it is preferable to provide it on the top side of the cleaner body. However, if the central exhaust port and the accessory storage recess are separately provided on the upper surface side of the vacuum cleaner body, the vacuum cleaner body becomes larger.

The purpose of this invention is to solve these problems so that even during concentrated exhaust, cleaning can be carried out with the vacuum cleaner body facing down, and also to blow the concentrated exhaust to high places. Easy,
Another object of the present invention is to provide a vacuum cleaner that can be made compact despite having a central exhaust port and an accessory storage recess, and can prevent erroneous switching between distributed exhaust and concentrated exhaust.

[Structure of the idea]

(Means for Solving the Problems) In order to achieve the above object, the vacuum cleaner of the present invention is provided with a dust collection chamber inside and an electric blower whose suction side communicates with this dust collection chamber. A partition wall comprising a vacuum cleaner body in which a peripheral wall has a distributed exhaust port that communicates with the exhaust side of the electric blower, and a space in the vacuum cleaner body that extends from the exhaust side of the electric blower to the distributed exhaust port and has a communication port. The main exhaust chamber is partitioned into a primary exhaust chamber facing the electric blower and a secondary exhaust chamber facing the distributed exhaust port, and accessories such as a suction port body can be freely attached and removed on the top side of the vacuum cleaner body facing the primary exhaust chamber. An accessory storage recess that is fitted into the storage recess is provided, and a central exhaust port is provided at the bottom of the storage recess, through which a central exhaust pipe member such as a hose can be inserted and removed to communicate the primary exhaust chamber with the outside air. When the central exhaust port is opened and the central exhaust port is closed, the communication port of the partition wall is opened, and the central exhaust pipe member penetrated through the central exhaust port is actuated by pressure to open the central exhaust port and the communication port is opened. An opening and closing body is provided to close the mouth, and further,
The outer diameter of the part of the accessory that fits into the accessory storage part is made larger than the outer diameter of the penetration part of the central exhaust pipe member to the central exhaust port, and the inner periphery of the accessory storage recess is made larger. A restriction portion is provided on the surface to restrict the accessory before its lower end reaches the central exhaust port.

(Function) In the vacuum cleaner of the present invention, when performing distributed exhaust air, the communication port of the partition wall that partitions the primary exhaust chamber facing the electric blower and the secondary exhaust chamber facing the distributed exhaust port is opened, and the A central exhaust port opened at the bottom of an accessory storage recess provided on the top side of the vacuum cleaner body facing the exhaust chamber is closed by an opening/closing body. In this state, exhaust is performed from the distributed exhaust port via both exhaust chambers. On the other hand, when performing centralized exhaust, a central exhaust pipe member such as a hose is connected to the accessory storage recess and passed through the central exhaust port at the bottom. At this time, the central exhaust pipe member is pressed to open and close. When the body operates, the central exhaust port is opened, and the communication port of the partition wall is closed by the opening/closing body. In this state, concentrated exhaust is performed through the primary exhaust chamber and the concentrated exhaust pipe member.
In addition, when central exhaust is not performed, accessories can be fitted and stored in the accessory storage recess, but in this case, the outer diameter of the penetrating part of the central exhaust pipe member to the central exhaust port An accessory whose outer diameter is larger than that of the part that fits into the accessory storage part is stopped by the regulating part on the inner circumferential surface of the accessory storage recess before its lower end reaches the central exhaust port, and Therefore, the central exhaust port will not be accidentally opened and the communication port will not be blocked.

(Embodiment) The configuration of an embodiment of the vacuum cleaner of the present invention will be described with reference to FIGS. 1 and 2.

11 is a vacuum cleaner main body, and this vacuum cleaner main body 11 is
A main body case 12 that is elongated in the front and back direction as shown in the figure and has a ventilation hole (not shown) opened on the front side;
The dust collecting case 13 is detachably attached to the front side of the main body case 12 and has an open rear surface. Further, the main body case 12 is composed of a lower main body case 12a having an open upper surface, and an upper main body case 12b having an open lower surface and attached to the lower main body case 12a with screws or the like.

A hose 14 is provided on the front side of the dust collection case 13.
A suction port 15 is provided, into which a is removably inserted.
The inside of the dust collection case 13 is formed into a dust collection chamber that communicates with the suction port 15 and the ventilation port.

An electric blower 16 is disposed inside the main body case 12, with the intake side communicating with the ventilation port, and the blower 16 is supported by packing and supports 17 (not shown) on the front and rear sides thereof. In the main body case 12, the suction side and the exhaust side of the electric blower 16 are airtightly partitioned by the packing. Further, a distributed exhaust port 18 is opened on the rear surface of the peripheral wall of the main body case 12.
A filter 19 made of foamed urethane or the like is provided to cover the dispersion exhaust port 18 from the inside of the exhaust port 18 in order to obtain soundproofing and exhaust air dispersion effects.

Further, a space inside the main body case 12 from the exhaust side of the electric blower 16 to the distributed exhaust port 18 communicating therewith is provided by a partition wall 20 formed on the rear side of the electric blower 16. It is partitioned into a primary exhaust chamber 21 on the front side facing the dispersion exhaust port 18, and a secondary exhaust chamber 22 on the rear side facing the distributed exhaust port 18. A communication port 2 is provided in the upper part of the partition wall 20.
3 is opened, and both the exhaust chambers 21 and 22 communicate with each other through this communication port 23. Furthermore, the above 1
A substantially cylindrical accessory storage recess 24 whose upper and lower surfaces are open is formed on the upper surface of the main body case 12 near the communication port 23 facing the secondary exhaust chamber 21 , and the lower surface opening at the bottom of the recess 24 connects the primary exhaust chamber 21 . It serves as a central exhaust port 25 that communicates with the outside air. In addition, this storage recess 2
4 is tapered in diameter toward the lower end. The central exhaust port 25 of this storage recess 24
A connecting pipe portion 14a of the hose 14, which serves as a pipe member for concentrated exhaust, is inserted through the hose 14 in a removable manner.

Reference numeral 26 denotes a plate-shaped opening/closing body whose rear edge is rotatably supported by a shaft 27 at a position near the rear end of the central exhaust port 25 and near the top end of the communication port 23 . The opening/closing body 26 is biased by a spring 28 in the direction of closing the central exhaust port 25, and normally closes the central exhaust port 25.
The communication port 23 of the partition wall 20 is open. On the other hand, the hose 1 is connected to the central exhaust port 25.
When the connection pipe part 14a of No. 4 is penetrated, the opening/closing body 26 is operated by the pressure of this connection pipe part 14a,
The central exhaust port 25 is opened, and the communication port 23 is substantially closed by the opening/closing body 26.

In the storage recess 24, a bent pipe 29 having a connecting pipe part 29a as an accessory and a small suction port body 3 are stored.
0, 31, 32, etc. are stored in a detachable manner. As shown in FIG. 3, the suction port body 30 has an elongated suction port 3 that is perpendicular to the central axis direction of the connecting pipe portion 30a.
0b. In addition, the suction port body 31
As shown in FIG. 4, this has a circular suction port parallel to the direction of the central axis of the connecting tube portion 31a, and brush bristles 33 are implanted at the peripheral edge of the suction port. Furthermore, the suction port body 32 is called a hanging port, and as shown in FIG.
It is formed in an elongated shape having a thin suction port 32b obliquely intersecting the direction of the central axis.

And these accessories 29, 30, 31, 3
2 is the connecting pipe portion 29a, 30a, 31a, 3
The outer peripheral surface of 2a is tapered in diameter toward the tip, and these connecting pipe parts 29a, 30a, 31a,
32a is fitted into and stored in the storage recess 24. Furthermore, when fitted in this way, as shown in FIG. ,30,3
1 and 32 are restrained.
The inner diameter of is set. That is, the lower part of the inner circumferential surface of the tapered accessory storage recess 24 serves as a restriction part that prevents the lower ends of the connecting pipe parts 29a, 30a, 31a, and 32a from reaching the central exhaust port 25.

Note that the outer diameter of the connecting pipe portion 14a, which is the penetrating portion of the hose 14 to the central exhaust port 25, is the same as that of the connecting pipe portions 29a, 3 of the accessories 29, 30, 31, 32.
It is slightly smaller than the outer diameter of 0a, 31a, and 32a.

Next, the operation of this embodiment will be explained.

When performing distributed exhaust, as shown in FIG.
Cleaning is performed with the communication port 23 of the partition wall 20 open. At this time, the exhaust air is transferred from the electric blower 16 to the primary exhaust chamber 21 as shown by the arrow.
The air flows out from the distributed exhaust port 18 via the communication port 23 and the secondary exhaust chamber 22.

On the other hand, when performing concentrated exhaust, as shown in FIG. 2, first, the connecting pipe portion 14a of the hose 14 is fitted into the accessory storage recess 24 and connected. Then, the outer diameter of this connecting pipe portion 14a is the same as that of the accessory 2.
Connection pipe parts 29a, 30 of 9, 30, 31, 32
Since it is smaller than the outer diameter of the central exhaust port 25, it is inserted beyond the central exhaust port 25 and presses the opening/closing body 26 against the tension of the spring 28. As a result, the opening/closing body 26 rotates and the central exhaust port 25 is opened. In this state, the communication port 23 of the partition wall 20 is not completely closed, but when the electric blower 16 is started, the opening/closing body 26 is brought into close contact with the communication port 23 due to wind pressure, and the communication port 23 is closed.

The exhaust air is then passed through the primary exhaust chamber 21 and the hose 14 to the vacuum cleaner main body 1, as shown by the arrow.
leaks outside of 1.

In this way, by simply inserting the hose 14 into the storage recess 24, it is possible to easily and reliably switch from dispersed exhaust to concentrated exhaust. And the exhaust air is 2
Since the air flows out of the cleaner main body 11 only through the primary exhaust chamber 21 without passing through the secondary exhaust chamber 22, a strong exhaust air can be obtained.

Furthermore, since the partition wall 20 is provided on the rear side of the electric blower 16, the noise of the blower 16 can be blocked, and a high soundproofing effect can be obtained.

In addition, the accessory storage recess 24 and the central exhaust port 2
5, the opening/closing body 26 is rotated by the spring 28, and the central exhaust port 25 is closed by the opening/closing body 26, and the communication port 23 is opened. In this way, centralized exhaust can be easily and reliably switched to distributed exhaust.

According to the above configuration, no special attachment is required for switching to concentrated exhaust, and there is no possibility of forgetting to remove the attachment during distributed exhaust, thereby causing an unnecessary increase in load on the electric blower 16.

In addition, since the central exhaust port 25 is located on the top surface of the vacuum cleaner body 11, the central exhaust port 25 is located in the opposite direction from the connecting pipe portion 14a of the hose 14 during concentrated exhaust compared to the case where the central exhaust port is located at the bottom of the vacuum cleaner body as in the past. The tip of the side can be carried to a higher position. Therefore, the concentrated exhaust air from the hose 14 can be easily blown to a higher location.

Similarly, the central exhaust port 25 is connected to the vacuum cleaner main body 11.
By being located on the upper surface, cleaning can be performed with the cleaner main body 11 standing upright with its rear face down even during concentrated exhaust.

Furthermore, the accessory storage recess 24 also includes the vacuum cleaner main body 11.
Since it is located on the top surface, it is easy to attach and detach the accessories 29, 30, 31, and 32 to and from the accessory storage recess 24, and even when the vacuum cleaner main body 11 is placed with its rear face down, the accessories 29 can be easily attached and removed. ,30,3
1, 32 can be attached and detached.

Even though the central exhaust port 25 and the accessory storage recess 24 are both located on the top surface of the vacuum cleaner main body 11, by opening the central exhaust port 25 into the accessory storage recess 24, the vacuum cleaner Main body 1
1 will not become large.

Incidentally, accessories can be stored in the accessory storage recess 24 during distributed exhaust other than during concentrated exhaust, but at this time, accessories 29 whose outer diameter is larger than the connecting pipe portion 14a of the hose 14 ,30,3
1, 32 connecting pipe parts 29a, 30a, 31a, 3
1 a is stopped by a regulating portion at the lower part of the inner circumferential surface of the accessory storage recess 24 before its lower end reaches the central exhaust port 25 . Therefore, the central exhaust port 25
is opened, and the communication port 23 is not blocked. This, together with the fact that the opening/closing body 26 is biased in the direction of closing the concentrated exhaust port 25, prevents erroneous switching between distributed exhaust and concentrated exhaust.

Next, another embodiment of the present invention will be described with reference to FIGS. 6 and 7.

In this embodiment, the accessory storage recess 24 is an accessory storage body 3 provided separately from the vacuum cleaner main body 11.
4. This accessory storage body 34 has an engaging claw portion 35 formed on its periphery.
By being engaged with the engagement hole 36 formed in the cleaner body 11, it is detachably attached to the rear end of the upper surface of the cleaner body 11. Further, at the rear portion of the upper surface of the accessory storage body 34, a rectangular side opening storage portion 37 with open ends is formed.

Further, a circular opening 38 facing the central exhaust port 25 at the lower end opening of the bottom of the accessory storage body 34 is provided.
is formed on the upper surface of the cleaner body 11.

Further, the generally cylindrical storage recess 24 of the accessory storage body 34 is formed with at least one expandable cut groove 39 extending in the direction of its central axis and extending from near the upper end to the lower end. Furthermore, a protrusion 40 serving as an annular restriction portion protruding in the inner diameter direction is formed at the lower end of the inner circumferential surface of the storage recess 24 . This protrusion 40 is located outside of the central exhaust port 25.

The accessories 29 and 3 are placed in this storage recess 24.
0, 31, the lower ends of the connecting pipe portions 29a, 30a, 31a are brought into contact with the protruding portion 40, as shown in FIG.
30 and 31 are locked. On the other hand, when the hose 14 is fitted in order to carry out concentrated exhaust, the connecting pipe part 14a climbs over the protruding part 40 and is pressed by the connecting pipe part 14a into the storage recess 2.
The kerf 39 of No. 4 is expanded, and this storage recess 24 is pushed and expanded. Therefore, as shown in FIG. 7, the connecting pipe portion 14a of the hose 14 is inserted beyond the protruding portion 40 and the central exhaust port 25, and the opening/closing body 2
6 to open the central exhaust port 25 and the opening 38 of the main body 11.

In addition, in this way, the hose 14 can be directly connected to the storage recess 2.
4, the temple opening 32 whose diameter is reduced toward the suction port 32b is inserted into the storage recess 2 from the suction port 32b side.
4, the connection pipe part 32 of the octopus vine opening 32 is pushed beyond the central exhaust port 25 and becomes a pipe member for central exhaust.
A hose 14 or the like may be connected to a for centralized exhaustion.

In this way, the accessory storage body 34 is attached to the vacuum cleaner main body 1.
If the structure is such that it can be detachably attached to accessory 2,
If the accessory storage body 34 is removed from the cleaner main body 11 when the vacuum cleaners 9, 30, 31, and 32 are not used or when centralized exhaust is not performed, the main body 11 can be made more compact. In this state, the opening 38 of the cleaner body 11 is closed by the opening/closing body 26.

By the way, if the structure is such that distributed exhaust is switched to centralized exhaust by detachably attaching an attachment so as to cover the dispersed exhaust port 18 of the vacuum cleaner main body 11, the attachment must be attached and detached each time the switch is made. Therefore, there is a high risk of losing this attachment or leaving it attached when performing distributed exhaust. 31 and 32, it can be attached regardless of the exhaust system, and the frequency of attachment and detachment is low, and there is almost no risk of losing this accessory storage body 34. Unlike the case where an attachment is provided in addition to the accessory storage body 34, the vacuum cleaner main body 11 does not become large during concentrated exhaust, and the packaging size also does not increase, which is advantageous in terms of distribution.

[Effect of idea]

According to the present invention, since the central exhaust port is provided on the top side of the vacuum cleaner body, it is easier to connect to the central exhaust port during centralized exhaust than when the central exhaust port is located at the bottom of the rear of the vacuum cleaner body as in the past. The concentrated exhaust air from the central exhaust pipe member can be easily blown to a higher place, and even during the concentrated exhaust, cleaning can be carried out with the cleaner body standing upright with its rear face down. In addition, since the accessory storage recess is also located on the top side of the vacuum cleaner body, it is easy to attach and remove accessories from the accessory storage recess, but both the central exhaust vent and the accessory storage recess are located on the top side of the vacuum cleaner body. However, since the central exhaust port is opened at the bottom of the accessory storage recess, the vacuum cleaner body does not become large. Furthermore, when the central exhaust port is blocked, the communication port between the primary exhaust chamber facing the distributed exhaust port and the secondary exhaust chamber facing the central exhaust port is opened, and the central exhaust pipe member penetrated by the central exhaust port is pressed. By having an opening/closing body that operates to open the central exhaust port and close the communication port, switching between centralized exhaust and distributed exhaust can be easily performed. In addition to increasing the outer diameter of the part of the accessory that fits into the accessory storage recess, there is also a regulation to stop the accessory on the inner peripheral surface of the accessory storage recess before its lower end reaches the central exhaust port. This prevents the central exhaust port from being accidentally opened and the communication port from being blocked when accessories are stored in the accessory storage recess, thereby preventing erroneous switching between distributed exhaust and centralized exhaust. It can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of a vacuum cleaner showing an embodiment of the present invention, Fig. 2 is a sectional view showing how the hose is connected to the accessory storage recess, and Fig. 3
The figure is a perspective view of a suction port body as an accessory, FIG. 4 is a perspective view of another suction port body as an accessory, FIG. 5 is a perspective view of yet another suction port body as an accessory, and FIG. The figure is a partially cutaway side view of the rear part of the vacuum cleaner showing another embodiment of the present invention, Figure 7 is a sectional view showing how the hose is connected to the storage recess, and Figure 8 is a conventional electric FIG. 2 is a partially cutaway side view of the rear part of an example of a vacuum cleaner. DESCRIPTION OF SYMBOLS 11...Vacuum cleaner main body, 14...Hose serving as a pipe member for centralized exhaust, 14a...Connecting pipe portion that is a penetrating portion of this hose to the centralized exhaust port, 16...
Electric blower, 18... Distributed exhaust port, 20... Partition wall, 21... Primary exhaust chamber, 22... Secondary exhaust chamber,
23...Communication port, 24...Accessories storage recess, 25
. . . Centralized exhaust port, 26 .
0, 31, 32... Suction port body as an accessory, 3
0a, 31a, 32a... Connection pipe portions 3 that are fitting portions into the accessory storage recesses in these suction ports
9... Cut groove, 40... Protruding part as a regulating part.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A dust collection chamber is provided inside, an electric blower whose intake side communicates with this dust collection chamber is disposed inside, and a distributed exhaust port communicating with the exhaust side of this electric blower is provided on the surrounding wall. A vacuum cleaner main body is provided with an opening, and a space inside the vacuum cleaner main body from the exhaust side of the electric blower to the distributed exhaust port is connected to a primary exhaust chamber facing the electric blower and the distributed exhaust port by a partition wall having a communication port. An accessory storage recess into which accessories are removably fitted is provided on the top side of the vacuum cleaner main body facing the primary exhaust chamber, and at the bottom of the storage recess, the Next, a central exhaust port is opened which connects the exhaust chamber with the outside air and a central exhaust pipe member is inserted and removably inserted through the central exhaust port, and when this central exhaust port is closed, the communication port of the partition wall is opened and the central exhaust port is An opening/closing body is provided which is operated by pressure of the central exhaust pipe member penetrated to open the central exhaust port and close the communication port, The outer diameter of the part of the accessory that fits into the accessory storage part is made larger than the diameter of the accessory, and the accessory is stopped on the inner peripheral surface of the accessory storage recess before its lower end reaches the central exhaust port. A vacuum cleaner characterized by having a regulating section that controls (2) The accessory storage recess is formed into a substantially cylindrical shape and has an expandable cut groove that extends substantially in the direction of its central axis, and the restriction portion is located near the bottom of the accessory storage recess and is connected to the central exhaust gas. The vacuum cleaner according to claim 1, which is a registered utility model, characterized in that the vacuum cleaner is formed as a protrusion that protrudes outward from the mouth in the radial direction.