JPH0321722Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a vacuum cleaner in which a dust suction hose is rotatably attached to the suction port of the vacuum cleaner body.

[Prior art] Figures 10 and 11 are, for example,
42760 is a diagram showing a conventional vacuum cleaner equipped with an opening/closing lid on the top surface of the main body and having a suction port to which a dust suction hose is connected to the top surface of the opening/closing lid.
FIG. 10 is a cross-sectional side view of the main part in the cleaning state, and FIG. 11 is a cross-sectional side view of the main part in the filter in the dust-removing state.

In the figure, 87 is the main body of the vacuum cleaner, 88 is a dust collection case, 89 and 90 are filters, 91 is an opening/closing lid that covers the upper part of the dust collection case 88, and 92 and 93 are sliding parts on the bottom and top surfaces of the filters 89 and 90. The movable scraping brush 94 is a dust suction hose. Reference numeral 95 denotes a suction cylinder. Inside this suction cylinder 95 is a rotatable cylinder 99 which has a suction port 96 at its center and is integrally formed with a flange 98 having a knob 97 at its upper edge. It is installed so that it does not come off in the direction. And this rotating tube 9
Scraping brushes 92 and 93 are fixed to the bottom of the filter 9, and the lower side thereof is fitted into a dust removal hole 100 of the filter 89 as shown in FIG.

And filter 89 or filter 9
0 is about to become clogged, pull out the suction pipe 94, grasp the knob 97, and rotate the rotating cylinder 99 in any direction. At this time, dust removal hole 1
00 is in the open state, so the scraping brush 9
Nos. 2 and 93 are scraping off fine dust caught by filters 89 and 90.

Next, Figures 12 to 14 are
A conventional vacuum cleaner shown in Publication No. 17346,
FIG. 12 is a front view of the connection portion of the hose to the suction port with the cover removed, FIG. 13 is a side view of the same, and FIG. 14 is a cross-sectional view taken along the line A--A in FIG. 12. In the figure, 101 is a dust suction hose, 1
02 is a connection part on the suction port side of the vacuum cleaner body of the dust suction hose 101, 103 and 104 are terminal pieces that are connected when the electrode on the suction port side and the hose 101 are connected;
05, 106 are sliding conductors connected to the operation panel of the remote circuit of the hose 101, 107, 10
8 is a contact piece for electrically connecting the terminal piece 103 and the sliding conductor 105 and the terminal piece 104 and the sliding conductor 106. 109 is a locking claw for locking the hose 101 to the suction port of the cleaner body.
Although the connection part 102 cannot be removed from the hose 101, the hose 102 cannot be removed from the connection part 101.
It is rotatable with respect to 2, and this connection part 1
11 was fitted into the suction port of the vacuum cleaner body. Figures 15 and 16 show a conventional vacuum cleaner disclosed in Japanese Utility Model Application Publication No. 58-145153, Figure 15 is a sectional view of the main part of the hose suction port, and Figure 16 is the hose suction port. FIG.

In the figure, 120 is a dust suction hose, 11
0 is a hose attachment part that is integrally attached to the hose 120, 111 is a slip spring stand that moves integrally with the hose attachment part 110, and conductive metal plates 112 and 113 are provided on the lower side. 114,
Reference numeral 115 denotes a core wire that is tangential to the operation panel of the remote circuit provided on the hose 120, and the core wires 114 and 115 are connected to the conductive metal plates 112 and 113 by signal wires 116 and 117.

118 and 119 are conductive metal plates 112 and 113 when the slip ring base 111 is attached to the main body.
It is a contact piece that makes contact with and makes an electrical connection.

The vacuum cleaner shown in FIGS. 15 and 16 has a hose attachment part 110 and a slip ring base 111 as shown in FIG. 15 during both cleaning and non-cleaning.
remains connected to the main body of the vacuum cleaner, and is disassembled only for maintenance and inspection as shown in FIG. FIG. 17 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, 121 is the vacuum cleaner body, 122 is a hose, 123 is a connecting pipe at one end of the hose 122,
124 is a rotor for making the connecting pipe 123 freely rotatable; 125 is a pipe cover that covers the connecting pipe 123; 126 is a hose 122 and the rotor 12;
4. A cover that holds the hose cover 125 in a non-removable state with respect to the main body 121, and covers the main body 121. 127 is a cover 126 of the main body 121
It is a lid body that covers the entire top, and includes a lid body 127 and a cover 1.
The space between 26 serves as a storage space for the hose 122 and other equipment.

[Problem to be solved by the invention] In the conventional vacuum cleaner shown in FIGS.
It is rotatably provided to drive the dust removal brushes 92 and 93 of No. 0, but when the dust suction hose 94 is inserted and used for cleaning, the lower side of the dust suction hose 94 is Since the dust suction hose 94 is fitted into the dust removal hole 100 of the filter 89 and cannot be rotated, the direction of the dust suction hose 94 when inserted, for example, when facing the front as shown in FIG. If you try to clean in a direction other than the direction, you always have to change the direction of the vacuum cleaner main body 87, and when you change the direction of the vacuum cleaner main body 87, the vacuum cleaner does not touch the part where the hose 94 touches or bends. The load due to the weight of the entire body 87 is applied, which causes the hose 94 and the body 87 to collapse,
There were problems such as distortion and damage.

In the conventional vacuum cleaners shown in Figs. 12 to 14, the hose rotation mechanism and electric contact mechanism are integrally formed on the hose side, so when the hose is taken out or when it is taken out, there is no risk of hitting the hose. External pressure from stepping on the hose is likely to damage or distort the rotating mechanism and electrical contact mechanism of the hose, and furthermore, the user must grasp the rotating mechanism and electrical contact mechanism themselves when connecting or disconnecting the hose. Because it does not, it is more likely to be damaged or distorted, leading to problems with durability.

In addition, in the conventional vacuum cleaner shown in Figs. 15 and 16, the hose rotation mechanism and the electrical contact mechanism are both divided into two parts, one on the hose side and the other on the main body side. In this case, the rotating mechanism and electrical contact mechanism are exposed, which makes each mechanism easy to get dirty and damaged.Furthermore, the end of the electrical circuit on the main body side, which is connected to the power source, is also exposed, so there is a risk of electric shock to the user. I'm worried about doing so. Therefore, the conventional vacuum cleaner shown in FIGS. 15 and 16 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 suction port on the top of the main body is usually bent as shown in Figures 10 and 15, eddies and turbulence due to the suction air flow are likely to occur in the bent pipe. Moreover, there was a problem in that each component acted as a resistance, reducing the suction force and becoming a source of noise.

Furthermore, in the conventional vacuum cleaner shown in FIG. 17, the hose 122 does not normally need to be removed from the main body 121, and when the hose 122 is taken out from the main body 121, the entire top surface of the main body 121, including the cover 126, must be disassembled. Therefore, the above 1st
Similar to the conventional vacuum cleaners shown in FIGS. 5 and 16, there was a problem in that the hose could not be removed from the vacuum cleaner body.

This invention was made to solve the problems associated with this invention, and the purpose is to obtain a vacuum cleaner with a detachable and rotatable hose and with less noise.

[Means for Solving the Problems] A vacuum cleaner according to this invention is provided with a suction port on the upper surface of the main body case, and a hose assembly having one end removably connected to the suction port and a flexible hose at the other end. In the vacuum cleaner, a connecting curved pipe having a grip part is provided on the one end side of the hose assembly to form a predetermined space between the hose assembly and the outer circumferential surface thereof, and a connecting bending pipe is provided in the space of the pipe for attaching and detaching the hose assembly. A latch button is provided, an outer shape of the suction port side end of the grip portion is formed into a substantially circular shape, and a locking portion that locks with the catch portion of the latch button is provided inside the main body case near the suction port. and is provided with a rotating tool that rotates integrally with the connecting bent pipe.

[Function] Since the vacuum cleaner of this invention has a double-walled hose assembly, it is easy to get caught when the hose assembly is attached and detached from the main body case, is resistant to damage, has a soundproofing effect, and Since a rotating tool is provided inside the main body case, the hose assembly can be rotated smoothly.Therefore, the bending direction of the hose assembly connected to the suction port on the top of the main body can be freely directed in the direction in which the hose will be used. This makes it possible to clean all 360 degrees around the main body under the same conditions without having to change the direction of the main body case itself. The latch button makes it easy to attach and detach the hose assembly from the main case.
Moreover, the latch button is installed between the double structure of the hose assembly, and the grip part, which is the outer shell of the double structure, is approximately circular, so there is no need to worry about it interfering with the rotation of the pipe. Since the rotating mechanism is installed inside, it is difficult to get dirty and get damaged.
It is highly durable as it does not easily warp.

[Example] An example of this invention will be described below with reference to FIGS. 1 to 9.

Figure 1 is an external view of a vacuum cleaner showing an embodiment of this invention, Figure 2 is a sectional view of its main parts, Figure 3 is a sectional view of the main parts with the hose removed, and Figure 4 is a rotating A top view of the tool, Figure 5 is a detailed sectional view of the rotating tool, and Figure 6 is a detailed sectional view of the rotating tool.
7 is a sectional view taken along line AA in FIG. 6, FIG. 8 is a bottom view of the hose assembly, and FIG. 9 is a sectional view taken along line BB in FIG. 6.

In the figure, 1 is formed by upper and lower cases 2 and 3, and has a handle 3a at the front and an exhaust port 4 at the rear, and is wider than its height.A blower 5 and a cord reel (not shown) are located near the exhaust port 4. are stored in parallel.

Numeral 6 is a leg when the main body is used in an upright position, and is formed near the exhaust port 4, and has an auxiliary exhaust port 7 inside.
is formed.

Reference numeral 8 denotes a bumper held between the upper and lower cases 2 and 3, which also serves to keep the inside and outside of the main case 1 confidential.

9 is a pair of rear wheels attached to the rear of the lower case 3, 10 is a caster attached to the front of the lower case 3, and 11 is a flexible hose 12 fixed to the end of the hose at an angle of about 105°. The connecting bent pipe 13 is detachably supported by a suction port 15 which will be described later.

The connecting bent pipe 13 is integrally formed by the suction portion 16 and the discharge port 17, a bent portion 18 bent at approximately 105° that connects both, and a grip portion 19 formed in a substantially circular shape that covers the circumference of the discharge port 17. It is formed. The shape of the suction port 15 is such that a grip portion 19, which is the outside of the connecting bent pipe 13, can be freely inserted into and removed from the suction port 15.

20 is a space formed by the discharge port 17 and the gripping portion 19; 21 is a lid covering the space; 22 is a lid that covers the space formed by the discharge port 17 and the gripping portion 19; space 20
A latch button 25, which is housed inside by the lid 21, holds the latch button 22 in the grip portion 19.
Coil spring to be formed more freely to appear and retract, 2
Reference numerals 6 and 27 denote U-shaped sliding terminal plates respectively supported on the outer peripheries of support walls 28 and 29 formed opposite to the outer wall on the distal end side of the discharge port 17; 30 denotes a sliding terminal plate 26 and 27; This is a fall prevention wall formed on the lid 21 to prevent it from falling off the support walls 28 and 29.

Lead wires 31 and 32 electrically connect a hand switch (not shown) formed at one end of the hose assembly 11 and the sliding terminal plates 26 and 27;
3 is a twisting spring 35 at the rear end that covers the filter outlet 34 provided at the front of the upper case 2 so as to be openable and closable.
An opening/closing lid 15 is formed on the upper surface of the opening/closing lid 33, and a part thereof has a knob. It is a suction port having a storage portion 37 and is located directly above the caster 10.

38 has a communication port 39 at a position facing the suction port 15, and has a storage space 4 between it and the opening/closing lid 33.
A gasket A, 44 is attached to the opening/closing lid 33 so as to form a pressure-sealing seal with the periphery of the suction port 43 of a disposable paper filter 42, which will be described later.
A suction port 47 is rotatably attached to the upper side of an intermediate port 46 provided at the center of the fixed plate 45, and a sliding plate 48 is rotatably attached to the lower side. A main suction port 49 is formed in the center of the suction port plate 47, and around this main suction port there is a button support hole 5 as an engaging portion which is detachably connected to the catch portion 24 of the latch button 22 of the hose assembly 11.
0 and terminal receiving plate support holes 53 and 54 for supporting terminal receiving plates 51 and 52 electrically connected to the sliding terminal plates 26 and 27, respectively.

A discharge port 55 is formed in the center of the sliding plate 48, and a rotary connecting plate 57 is provided on the outer peripheral wall surface 56, and one end thereof is electrically connected to the terminal receiving plates 51 and 52 by lead wires (not shown). , 58 are wound and fixed in two rows, upper and lower, so that they do not come into contact with each other.
Fixed connection plates 59 and 60 have both ends pressed against and electrically connected to the rotary connection plates 57 and 58, and are fixed to the fixed plate 45 at positions facing each other. Further, one ends of the fixed connection plates 59 and 60 are electrically connected to the blower by lead wires 61 and 62, respectively.

Reference numeral 63 designates a dirt drop hole A formed on the outer periphery of the intermediate opening 46 of the fixed plate 47 to prevent dirt from accumulating on the fixed plate 45 and interfering with the rotation of the suction port plate 47;
Reference numerals 64 and 65 denote dirt drop holes B that allow dirt to fall onto the inner lid 38 without being deposited on the sliding plate 48 that has entered through the dirt dropping hole A63. It rotates smoothly.

Reference numeral 66 is a check valve made of a soft rubber material that prevents the backflow of dirt, and is held between the suction port 47 and the sliding plate 48.

Reference numeral 67 denotes a rotary packing for sealing, one end of which is attached to the outer periphery of the discharge port 55 of the sliding plate 48, and the other end of which is rotatably pressed against the outer periphery of the intermediate opening 39 of the inner lid 38;
is the inclined support wall 69 of the suction port 15 and the fixed plate 45.
The shutter is slidably supported in between, and has a knob 70 at its tip and a pair of stop pieces 71 at its rear end. The stopper piece 71 is supported by a stopper protrusion 73 provided on the opening/closing lid 33 to prevent the shutter 68 from moving.

Reference numeral 75 denotes a filter box with a top opening for collecting dust, whose flange portion 77 is supported by the opening 76 of the upper case 2 through a sealing filter packing 78, and a disposable paper bag, which will be described later, is provided on the inside top surface. A support surface for supporting the filter 42 and mount support pins 79 and 80 are formed.

42 is a disposable paper filter with a suction port 4 in the center.
3, a mount 83 having support holes outwardly engaged with the support pirans 79 and 80, and a bag filter 84 for collecting dust adhered to the mount 83. is maintained.

Reference numerals 85 and 86 designate holder support pins that are formed below the filter box 75 and protrude from the inner wall of the lower case 3.

This invention is constructed as described above, and its operation will be explained.

When the latch 36 is operated, the opening/closing lid 33 opens upward by the twisting spring 35, and the filter outlet 3
Open 4.

Next, the disposable paper bag filter 42 is inserted into the support pins 79 and 80 of the filter box 75 and placed in the opening of the filter box. Thereafter, by engaging the opening/closing lid 33 with the latch 36, the gasket A41 is brought into pressure contact with the periphery of the suction port 43 of the mount 83.

Push the knob 70 of the shutter 68 into the knob housing 3.
7 to open the suction port 15, and insert the connecting bent pipe 13 of the hose assembly 11 into the suction port 15. At this time, the hook part 24 of the latch button 22
is coupled to the button support hole 50 of the suction port plate 47,
The sliding terminal plates 26 and 27 also have terminal receiving plate support holes 53,
54 are electrically connected to terminal receiving holes 51 and 52, respectively. Further, the tip of the discharge port 17 of the hose assembly 11 passes through the suction port 43 of the paper bag filter 42 and is located within the paper filter 84. In this state, the blower 5 is rotated to perform cleaning. At this time, the rotating tool 44
is rotatably supported in the storage space 40, so the hose assembly 11 can freely rotate 360 degrees around the connecting bend pipe 13, so there is no possibility that the hose assembly 11 will get twisted or the main body will rotate during cleaning. It will not collide with furniture etc. and cause damage.

[Effects of the invention] As described above, according to the vacuum cleaner of this invention, the hose assembly has a double structure, so it is easy to grasp when the hose assembly is attached to and removed from the main case, and it is durable. It also has a soundproofing effect, and since the main body case is equipped with a rotating tool, the hose assembly can be rotated smoothly. The hose can be freely oriented in the direction in which the hose is used, and cleaning can be done in all 360 degrees around the main body under the same conditions without having to change the direction of the main body case itself.
The latch button makes it easy to attach and detach the hose assembly from the main case, and the latch button is provided between the double structure of the hose assembly, and the grip part that is the outer shell of the double structure is approximately circular. Therefore, there is no need to worry about hindering the rotation of the pipe, and since the rotating tool is installed inside the main body, the rotating mechanism is difficult to get dirty, damaged, or distorted, so it has the unique effect of being highly durable. It's playing.

[Brief explanation of drawings]

Figure 1 is an external view of a vacuum cleaner showing an embodiment of this invention, Figure 2 is a sectional view of its main parts, Figure 3 is a sectional view of the main parts with the hose removed, and Figure 4 is a rotating A top view of the tool, Figure 5 is a detailed sectional view of the rotating tool, and Figure 6 is a detailed sectional view of the rotating tool.
The figure is a partial sectional view of the hose assembly, Figure 7 is a sectional view taken along line AA in Figure 6, Figure 8 is a bottom view of the hose assembly, Figure 9 is a sectional view taken along line BB in Figure 6, and Figure 10. ,
Figure 11 is a cross-sectional side view of the main parts of a conventional vacuum cleaner described in Japanese Utility Model Publication No. 48-42760, and Figures 12-
Fig. 14 is a diagram showing a conventional vacuum cleaner described in Japanese Utility Model Publication No. 17346/1983, Fig. 12 is a front view with the cover of the connection to the hose suction port removed, and Fig. 13 is 14 is a cross-sectional view taken along the line A-A in FIG. 12, and FIGS. 15 and 16 are the hose inlet of the conventional vacuum cleaner described in Publication No. 145153/1983. Main part sectional view and exploded perspective view,
FIG. 17 is a sectional view of a main part of a conventional vacuum cleaner described in Japanese Utility Model Publication No. 132956/1982. In the figure, 1 is the main body case, 4 is the exhaust port, 1
1 is a dust suction hose, 13 is a connecting bent pipe,
19 is a grip part, 20 is a space, 22 is a latch button, 26 and 27 are sliding terminal boards, 33 is an opening/closing lid, 3
7 is a suction port.

Claims (1)

[Scope of utility model registration request] A vacuum cleaner having a suction port on the upper surface of the main body case, and a hose assembly having one end removably connected to the suction port and a flexible hose at the other end,
A connecting bent pipe having a grip part is provided on the one end side of the hose assembly so as to form a predetermined space between it and the outer peripheral surface thereof, and a latch button for attaching and detaching the hose assembly is disposed within the space of the pipe. and an outer shape of the suction port side end of the grip portion is formed into a substantially circular shape, and a locking portion that locks with a catch portion of the latch button is provided inside the main body case near the suction port; A vacuum cleaner characterized by being provided with a rotating tool that rotates integrally with a connecting bent pipe.