JPH0525568Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a vacuum cleaner equipped with a remote circuit operation on the dust suction hose side.

[Conventional technology]

Conventionally, as a vacuum cleaner equipped with a remote circuit operation part on the dust suction hose side, for example, the
As shown in Publication No. 46-5199, there were some hoses that were magnetically coupled at the connection part to enable the hose to rotate, but such magnetic couplings were further converted electrically. In addition to requiring a mechanism, heat is easily generated in the magnetic coupling part,
There were problems in that not only energy loss occurred due to this, but also magnetic deterioration and erroneous operation due to external magnetism were likely to occur.

Therefore, conventional vacuum cleaners shown in FIGS. 7 to 12 were devised in which the hoses are electrically connected and rotatable.

Figures 7 to 9 show a conventional vacuum cleaner shown in Japanese Utility Model Publication No. 46-17346, and Figure 7 is a front view with the cover of the connection part of the hose to the suction port removed; FIG. 8 is a side view of the same as above, and FIG. 9 is a cross-sectional view taken along line A--A in FIG. 7.

In the figure, 55 is a dust suction hose, 56 is a connection part of the dust suction hose 55 on the suction port side of the vacuum cleaner body, 57 and 58 are terminal pieces that are connected when the hose 55 is connected to the electrode on the suction port side, 59, 60 is a sliding conductor connected to the operation panel of the remote circuit of the hose 55, 61 and 62 are electrically connecting the terminal piece 57 and the sliding conductor 59, and the terminal piece 58 and the sliding conductor 60. It is a contact piece for 63 is hose 55
This is a locking claw for locking the vacuum cleaner to the suction port of the main body of the vacuum cleaner.

Although the connecting portion 56 cannot be removed from the hose 55, the hose 55 is rotatable relative to the connecting portion 56.

Figures 10 and 11 show a conventional vacuum cleaner shown in Japanese Utility Model Application Publication No. 58-145153, Figure 10 is a sectional view of the main part of the hose suction port, and Figure 11 is the hose suction port. FIG.

In the figure, 64 is a dust suction hose, 65 is a hose attachment part that is integrally attached to the hose 64, 66 is a slipping table that moves integrally with the hose attachment part 65, and there is a conductive metal plate 67 on the lower side. 6
8 is provided. 69 and 70 are core wires that are tangential to the operation panel of the remote circuit provided in the hose 64, and these core wires 69 and 70 are connected to the signal wire 7.
1 and 72 are connected to conductive wire metal plates 67 and 68.

Reference numerals 73 and 74 are contact pieces that come into contact with the conductive metal plates 67 and 68 for electrical connection when the slip ring base 66 is attached to the main body.

In the vacuum cleaner shown in FIGS. 10 and 11, the hose attachment part 65 and slip ring stand 66 remain connected to the vacuum cleaner body, as shown in FIG. 10, both when cleaning and when not cleaning. This condition is such that it is disassembled only for maintenance and inspection as shown in FIG.

FIG. 12 is a sectional view of a main part of a conventional vacuum cleaner disclosed in Japanese Utility Model Application Publication No. 50-132956.

In the figure, 75 is the vacuum cleaner body, 76 is a hose,
77 is a connecting pipe at one end of the hose 76; 78 is a rotor for making the connecting pipe 77 freely rotatable;
A pipe cover 9 covers the connecting pipe 77, and a cover 80 holds the hose 76, rotor 78, and hose cover 79 in a non-removable state with respect to the main body 75, and covers the main body 75. Reference numeral 81 is a lid that covers the entire top of the cover 80 of the main body 75, and the space between the lid 81 and the cover 80 is a storage space for the hose 76 and its accessories.

[The problem that the idea aims to solve]

In the conventional vacuum cleaner shown in FIGS. 7 to 9, the hose rotation mechanism and the electrical contact mechanism are integrally formed on the hose side.
When the hose is disconnected or disconnected, external pressure from being hit or stepped on is applied to the rotation mechanism and electrical contact mechanism of the hose, making it easy to damage or distort it.Furthermore, when connecting or disconnecting the hose, the user Since the rotating mechanism and the electrical contact mechanism themselves have to be held, they are more likely to be damaged or distorted, and there are problems with durability.
Since they are all in contact with each other from the same direction, there is a problem in that the contact pressure applied to the electrical contact portions is uneven, and the electrical contact mechanism is prone to contact failure.

Furthermore, in the conventional vacuum cleaner shown in Figures 10 and 11, both the hose rotation mechanism and the electrical contact mechanism are divided into two parts, one on the hose side and the other on the main body side, so when the hose is removed from the main body, Since the rotating mechanism and the vacuum cleaner contact mechanism are exposed, each mechanism is easily soiled and damaged, and the end of the electric line itself on the main body side, which is connected to the power source, is also exposed. Contact pieces 73, 7
Since the contact direction of No. 4 is 90° different from the relative direction of contact pieces 73 and 74, that is, in FIG. 8, it is a vertical upward direction that is 90° different from the horizontal direction where contact pieces 73 and 74 are located. There is a risk of electric shock to the user.

Therefore, the conventional vacuum cleaner shown in FIGS. 10 and 11 has a problem in that the hose cannot be removed from the vacuum cleaner body except for maintenance and inspection.

Moreover, since the pipe connected to the air inlet on the top of the main body is usually bent as shown in Figure 8, eddies and turbulence are likely to occur in the bent pipe due to the suction airflow, and each part However, there was a problem in that it became a resistance and caused a decrease in suction power and a source of noise.

Furthermore, in the conventional vacuum cleaner shown in FIG. 12, the hose 76 does not normally need to be removed from the main body 75, and when the hose 76 is removed from the main body 75, the entire top surface of the main body 75, including the cover 80, must be disassembled. Therefore, the above figure 10, 1
Similar to the conventional vacuum cleaner shown in Figure 1, there was a problem in that the hose could not be removed from the vacuum cleaner body.

This invention was made in order to solve these problems, and to provide a vacuum cleaner in which the hose is detachable and rotatable, and the hose rotation mechanism and electric contact mechanism are effectively used. With the goal.

[Means to solve the problem]

In the vacuum cleaner of this invention, a suction port communicating with the dust collection chamber is provided on the top surface of the main body case in which the dust collection chamber is formed, and a removable dust suction hose is connected to the suction port. In a vacuum cleaner equipped with a remote circuit operating section for remotely controlling an electric motor in the main body case, a connecting body for holding the hose rotatably through 360° is provided in the main body case near the suction port, and this connection is provided. A shutter is provided between the body and the suction port, and the connection body includes a suction port plate attached to the upper surface side so as to be rotatable integrally with the hose when the hose is connected, and a shutter on the suction plate. The chamber side is provided with a rotating tool that rotates integrally with the suction plate, and a frame sandwiched between the suction plate and the rotating tool, and an engagement that engages with the engagement portion of the hose on the suction plate. a pair of contact plates electrically connected to a pair of terminal plates of the remote circuit on the hose side, and a pair of annular conductive plates connected to the pair of contact plates on a side surface of the rotating tool; A pair of figure eight-shaped contact plates on the main body case side of the remote circuit are provided on the main body case side, and the open sides of the contact plates face each other and are sandwiched and placed oppositely so as to surround the rotary tool. Each of the contact points and the conductive plate are brought into contact with each other in opposing directions.

[Effect]

In the vacuum cleaner according to this invention, the hose itself is detachable and rotatable through 360 degrees, so cleaning in any direction is very easy and there is no need to worry about the hose becoming twisted. Furthermore, there is no need to worry about twisting in the direction of rotation of the hose. In addition, regardless of the direction of rotation of the hose, the electrical contact mechanism for connecting the electrical system of the remote circuit on the hose side and the main unit side is provided on the main unit case side, so the electrical circuit on the main unit side can be stripped. There is no need to worry about electric shock as it does not come out, and the rotating mechanism and electrical contact mechanism are hard to get dirty and are less likely to be damaged or distorted, so they are highly durable. In addition, the pair of contact plates are figure-eight shaped and can be sandwiched from the outside so as to surround the rotating tool, and can be placed opposite each other, so that a balanced force is applied to the rotating tool, and the viewing tool can rotate to the left or right. However, it is always well-balanced and rotation is always stable.

Furthermore, the discharge port is rotatably attached to the frame plate which is fixed integrally with the rotary tool, so that the dust suction hose can be rotated on the suction port plate while connected to the suction port. It is held freely and at the same time, the remote circuit provided on the hose is reliably connected to the main body case.

〔Example〕

An embodiment of this invention will be described below with reference to FIGS. 1 to 6.

Fig. 1 is an external side view showing a vacuum cleaner according to an embodiment of this invention, Fig. 2 is a sectional view of main parts, and Fig. 3 is a sectional view of main parts.
The figure is a top view of the connecting body, and Figure 4 is a cross-sectional view of the connecting body.
FIG. 5 is a sectional view of the bent pipe, and FIG. 6 is a side view of the main part of the bent pipe.

In the figure, 1 is a flat main body case consisting of upper and lower cases 2 and 3, having a handle 4 at the front and an exhaust port 5 at the rear, and housing an electric blower 6 and a cord reel (not shown). . Reference numeral 7 denotes a plurality of support legs facing the rear surface of the main body case 1, forming an auxiliary exhaust port inside. A bumper 8 is held between the joint surfaces of the upper and lower cases 2 and 3, and holds the joint surfaces airtight. 9 and 10 are casters and wheels for moving the main body case 1; 11 is a dust collection chamber formed on the suction side of the electric blower 5 of the main body case 1; a dust outlet 12 is opened in the upper surface of the main body case 1;

Reference numeral 13 denotes an opening/closing lid that covers the dust outlet 12 of the dust collecting chamber 11, and its rear end is pivoted to the main body case 1 14 and its tip is locked in a latch 15. 16 is a torsion spring that biases the opening/closing lid 12 in the direction of opening;
Reference numeral 7 denotes a suction port provided on the upper surface of the opening/closing lid 13, and a recess 18 is formed in a part of the inner periphery to accommodate a shutter knob to be used later. Reference numeral 19 denotes an inner lid fixed to the lower surface of the opening/closing lid 13 to form a predetermined space 20, and has a communication hole 21 formed opposite to the suction port 17. 22 is a connection body for a dust suction hose, which will be described later, which is arranged in the space 20 facing the suction port 17;
A frame board 22a fixed to the inner cover 19, an annular suction port plate 26 rotatably attached to the top surface of this frame board, and a suction port plate 26 sandwiching the frame board from the bottom surface of the frame board 22a. The rotating tool 25 is fixed in the same state with screws 22b and has integrated conductive plates 23 and 24 wound in parallel around its circumferential surface. 27 is a check valve made of a soft rubber material having radial slits,
It is held by 6. 28 is the rotating tool 25 and the inner lid 1
Gaskets 29 and 30 are used to seal the conductive plates 23 and 2 of the rotary tool 25 and the peripheral edge of the communication hole 21 of 9.
These contact plates 29, 3 are bifurcated contact plates in the form of a figure eight, each having a spring property and contacting the contact plates 29, 3, respectively.
The open sides of the lead wires 31 and 3 are placed opposite each other and sandwiched so as to surround the rotary tool 25.
2 is connected to the remote circuit on the main body case 1 side. 33 is a dust collecting filter box placed in the dust collecting chamber 11, and the peripheral edge thereof is the dust outlet 12.
It is airtightly held between the mouth edge of the inner lid 19 and the inner lid 19 with a gasket 34 interposed therebetween. A disposable paper filter 35 is placed inside the filter box 33, and a mount 37 having a suction port 36 is attached to the opening. Reference numeral 38 designates a dust suction hose composed of a flexible hose 39 and a bent pump 40 fixed to the end of the flexible hose. At this time, the tip hook portion 51a of the latch button 51, which is provided on the side surface of the pipe 40 so as to be freely protrusive and retractable via a spring 50, is engaged and held in the engagement recess 52 provided on the inner surface of the suction port plate 26. At this time, the tip of the bent pipe 40 pushes open the check valve 27, passes through the communication hole 21 of the inner cover 19, is inserted into the inside of the paper bag filter 35, and is connected to a remote circuit formed on the hose. and a pair of terminal plates 5 exposed and facing the outer surface of the bent pipe 40.
3 and 54 are a pair of contact plates 4 provided on the suction port plate 26
Contact with 1,42. This pair of contact plates 41, 4
2 is electrically connected to a pair of conductive plates 23 and 24 in advance. A shutter 43 opens and closes the suction port 17, and is arranged between the opening/closing lid 13 and the connecting body 22 so as to be slidable in the horizontal direction. A knob 44 and an engaging protrusion 4 having spring properties are provided on the upper surface of the shutter 43.
5 is provided, and this engaging protrusion engages with engaging protrusions 46 and 47 provided on the opening/closing lid 13 when the shutter 43 is opened or closed,
On the other hand, when the shutter 43 is closed, the knob 44
It is located within the recess 18 of the suction port 17.

The operation of the above embodiment will be explained.
When the dust suction hose 38 is not connected to the suction port 17, the suction port 17 is closed with a shutter 43.
At this time, the shutter 43 is maintained in the closed state by the engaging protrusions 45 and 47 engaging with each other. Next, when the shutter 43 is opened, the other engaging protrusions 45 and 46 are engaged and the open state is maintained, so that the hose 3
When the bent pipe 40 of No. 8 is pushed in from the suction port 17, the tip hook portion 51a of the latch button 51 engages with the recess 52 of the suction port plate 26, and the bent pipe 40 is prevented from coming out. The hose 38 is inserted into the port 36 at the same time.
A remote circuit formed in the contact plates 41 and 42 is connected to the contact plates 41 and 42 through terminals 53 and 54, respectively. In other words, the remote circuit of the hose 38 is brought into contact with the remote circuit of the main body case 1 via the conductive plates 23, 24 and the contact plates 29, 30. The bent pipe 40 can freely rotate 360° in the horizontal direction, clockwise or counterclockwise by the suction port 26 of the connecting body 22, but is always kept in contact with the conductive plates 23, 24 and the contact plates 29, 30. Since the remote circuit can maintain the closed state at that time, the operation of the electric blower 6 can be controlled by this remote circuit. At this time, the contact plates 29 and 30 have a figure eight shape and are placed opposite each other from the outside so as to surround the rotary tool, so the applied pressure is balanced, and the pressure is always balanced even when the rotating tool is rotated to the left or right. Rotation is stable without wobbling. When the electric blower 6 is operated in this manner, the dust sucked in from the unillustrated floor brush attached to the hose 38 is
Via the flexible hose 39 and bent pipe 40, it is sucked into the paper bag filter 35 and captured. The airflow from which dust has been removed is further filtered by a filter box 33, then passed through an electric blower 6 and discharged to the outside from an exhaust port 5. When the paper bag filter 35 is full of dust, first push the latch button 51 of the bent pipe 40 against the spring 50 and remove it from the suction port plate 26 of the connecting body 22.
Close the shutter 43, remove the latch 15, open the opening/closing lid 13, and insert the paper bag filter 35 into the dust collection chamber 11.
Take it out and throw it away. After that, a new paper bag filter is set in the dust collection chamber 11.

In this way, in this invention, the dust suction hose 38 is connected to the suction port 17 of the main body case 1.
Since the connections are rotatable through 360°, the sides and rear of the main body case 1 can be easily cleaned without changing the orientation of the main body case 1 and without twisting the hose 38. Further, even if the hose 38 rotates, the remote circuit connecting the hose 38 and the main body case 1 is always electrically connected, so that no problem occurs in the operation of the electric blower. The connecting body 22 is rotatably attached to the frame plate itself by overlapping the suction port plate 26 and the rotary tool 25 on both the upper and lower surfaces of the frame plate 22a, and then fixing them together. 22a can be used to attach it to the main body case, and it is easy to assemble not only the connecting body itself but also the assembly to the main body case.

[device of idea]

As mentioned above, in the vacuum cleaner of this invention, the hose itself is detachable and rotatable 360°, so
Cleaning in either direction is very easy and there is no need to worry about the hose becoming twisted.

In addition, regardless of the direction of rotation of the hose, the connection state of the electrical system of the remote circuit on the hose side and the main body side is always maintained, and the rotation mechanism that allows the hose to rotate freely and the connection of the electrical system of the remote circuit Since the electrical contact mechanisms are located on the main body case side, the electrical circuits on the main body side are not exposed and there is no risk of electric shock, and the rotating mechanism and electrical contact mechanism are difficult to get dirty and will not be damaged or distorted. Since it is difficult, it has the effect of being excellent in durability.

Furthermore, the pair of contact plates are figure-eight-shaped and are sandwiched from the outside so as to surround the rotating tool, and are placed opposite each other, so that a balanced force is applied to the rotating tool, and the rotating tool is rotated to the left and right. It has the unique effect of being always balanced and stable even when rotating, and that there is no need to worry about poor contact due to rotation.

Moreover, the suction port plate is fixed integrally with the rotary tool and is attached to the frame plate so that it can be rotated freely, so that the dust suction hose can be attached to the suction port plate while being connected to the suction port. It is held rotatably, and at the same time, the remote circuit provided on the hose is reliably connected to the main body case, making it easier to handle.

[Brief explanation of the drawing]

Figure 1 is an external side view showing a vacuum cleaner according to an embodiment of this invention, Figure 2 is a sectional view of the main part of Figure 1, Figure 3 is a top view of the connecting body, and Figure 4 is the connecting body. Figure 5 is a cross-sectional view of the bent pipe, Figure 6 is a side view of the main part of the bent pipe, and Figures 7 to 9 show the conventional vacuum cleaner described in Publication of Utility Model Publication No. 17346/1983. Fig. 7 is a front view of the connection part of the hose to the suction port with the cover removed, Fig. 8 is a side view of the same, and Fig. 9 is a cross section taken along line A-A in Fig. 7. be. Figures 10 and 11 are from 1987-145153.
It is a diagram showing a conventional vacuum cleaner described in the publication,
Fig. 10 is a sectional view of the main part of the hose suction port, Fig. 11 is an exploded perspective view of the hose suction port, and Fig. 12 is a sectional view of the main part of the conventional electric vacuum cleaner described in Publication of Utility Model Publication No. 132956/1983. It is. In the figure, 1 is the main body case, 11 is the dust collection chamber,
17 is an inlet, 22 is a connecting body, 22a is a frame plate, 2
3 and 24 are conductive plates, 25 is a rotary tool, 26 is a suction port plate, 29 and 30 are contact plates, 38 is a dust suction hose, 41 and 42 are contact plates, 52 is an engagement recess, 5
3 and 54 are terminal plates.

Claims (1)

[Scope of utility model registration request] A suction port communicating with the dust collection chamber is provided on the top surface of the main case forming the dust collection chamber, a removable dust suction hose is connected to this suction port, and the electric motor inside the main case is remotely controlled by this hose. In a vacuum cleaner equipped with a remote circuit operating section, the hose is placed inside the main body case near the suction port.
A connecting body that can be held rotatably through 360° is provided, a shutter is provided between the connecting body and the suction port, and the connecting body is attached to the upper surface side so as to be rotatable integrally with the hose when the hose is connected. the suction port plate, a rotary tool that rotates integrally with the suction plate on the side of the dust collection chamber of the suction plate, and a frame sandwiched between the suction plate and the rotary tool; an engagement holding part that engages with the engagement part of the hose on the suction plate;
a pair of contact plates electrically connected to the pair of terminal plates of the remote circuit on the hose side; a pair of annular conductive plates connected to the pair of contact plates on the side surface of the rotating tool; A pair of figure-eight-shaped contact plates on the main case side of the remote circuit are provided on the case side, and the open sides of the contact plates face each other and are sandwiched and placed opposite each other so as to surround the rotary tool. A vacuum cleaner characterized in that a contact point and the conductive plate are brought into contact with each other.