JPH02144028A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To enable a shutter body to have high strength, smooth slide and compact size by giving rigidity to the slidable shutter for opening and closing an intake port and making the sectional form of the shutter body arcuate along the sliding direction. CONSTITUTION:The longitudinal sectional form of an outer surface 41a of an intake port member 41 in the outside end face of an intake port 42 is an arcuate one concentric with an arcuate sectional form of an inner surface 33b of an outside opening 36 section of an outside lid body member 33 in the same direction, and a certain small gap is held between the outer surface 41a of said member 41 and the inner surface 33a of said member 33. Further, the longitudinal sectional form of the outer surface 33a of said member 33 is arcuate approximately concentrically with said arcuate one. A plate-like rigid shutter body 51 having no flexibility is held slidably generally back and forth between said outer face 41a of said member 41 and said inner face 33b of said lid body member 33 in a receiving space 32 to open and close the intake port 42, and the longitudinal sectional form is an arcuate one concentric with the arcuate sectional form of the outer face 41a of the intake port member 41.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a vacuum cleaner used in homes and the like, and particularly relates to a shutter body that opens and closes a suction port.

(Prior Art) Conventionally, as described in, for example, Japanese Utility Model Application Publication No. 60-94152, a suction port is provided in a lid that covers an upwardly opening dust collection chamber in a main body case so as to be openable and closable. 2. Description of the Related Art An electric 11-layer remover is known which is provided with a slidable shutter body that opens and closes a suction port. In addition, in this type of electric sludge remover inside the shell, an inner opening and an outer opening are formed in the inner vessel member and the outer cover member constituting the lid, respectively, and a suction port is arranged between these openings. At the same time, a shutter body is disposed between the suction port and the outer opening.

In the conventional vacuum cleaner described in the above-mentioned publication, the shutter body is formed into a rigid flat plate shape, and the shutter body is slid in the horizontal front-rear direction on the suction port arranged vertically above the inner opening. structure is adopted. However, in this conventional structure, the total length of the locus of the shutter body in the apron direction increases as the shutter body opens and closes, resulting in a doll-like appearance.

Therefore, as described in Japanese Utility Model Application Publication No. 62-101466, the shutter body is made to have flexibility,
When considering the shutter body, a structure was adopted in which the shutter body was housed in a bent state between both lid members. However, the flexible shutter body is weak in strength. Moreover, since the shutter body is bent when opening and closing, the shutter body does not operate smoothly and is easily damaged.

(Problems to be Solved by the Invention) As described above, in the conventional vacuum cleaner in which the shutter body for opening and closing the suction port is shaped like a rigid flat plate, there is a problem in that it becomes large in size, and ! In conventional electric evacuation machines, the shutter body has a characteristic that bends as it opens and closes.
There was a problem that the strength of the shutter body was weak and the shutter body did not operate smoothly.

SUMMARY OF THE INVENTION An object of the present invention is to solve these problems and provide a vacuum cleaner that has a high strength shutter body that slides smoothly and can be made compact.

[Structure of the invention]

(Means for Solving Problem B) In order to achieve the above object, the present invention provides an electric blower and a dust collection chamber communicating with the electric blower inside, and an opening facing the dust collection chamber from above. a main body case, an inner lid member, and an outer container member attached to the outside of the inner lid member to form a storage space; a suction port provided in the storage space facing an outer opening formed in an outer lid member of the body, communicating the dust collection chamber with the outside, and into which an insertion pipe portion of a hose is removably fitted; ,
A vacuum cleaner comprising: an integrated lid slidably provided within the storage space and between an outer end surface of the suction port and an inner surface of the outer cover member and having rigidity for opening and closing the suction port; In this, the cross-sectional shape of the shutter body along the sliding direction is an arc shape, and the cross-sectional shape of the outer end surface of the suction port and the inner surface of the outer body member along the sliding direction is also an arc shape of the shutter body. It has an arc shape that is concentric with the shape.

(Function) During cleaning, the vacuum cleaner of the present invention slides the shutter body between the suction port and the outer lid member, which are located between the inner lid member and the outer lid member. Open the suction port and the outer opening of the outer lid member facing the suction port, and fit the insertion pipe portion of the hose into the suction port.

Moreover, after cleaning, after removing the insertion tube part from the suction port, the shutter body is slid in the opposite direction to close the suction port.

When the shutter body is slid to open and close in this way, the rigid shutter body has an arcuate cross-sectional shape along the sliding direction, and the suction port has a circular arc-shaped cross-sectional shape concentric with the circular arc shape. It moves while maintaining its own shape on one surface of the rotating body, such as a cylindrical surface, between the outer end surface of the outer end surface and the inner surface of the outer lid member. therefore,
The length in the linear direction of the entire trajectory accompanying the opening and closing of the shutter body is shorter than the entire length of the trajectory on the rotating body surface. Note that the dust trapped in the dust collection chamber can be discarded by opening the lid facing the dust collection chamber.

(Example) Hereinafter, the configuration of an example of the vacuum cleaner of the present invention will be described based on the drawings.

Reference numeral 11 denotes a vacuum cleaner main body, and the vacuum cleaner main body 11 includes a main body case 13 having an upwardly opening opening 12 at the front thereof, and a lid that is pivotally attached to the main body case 13 and closes the opening 12 so as to be openable and closable. It consists of a body 14.

Further, the main body case 13 includes a lower main body case 15,
It consists of an upper body case 16 coupled to the rear upper side of the lower body case 15, and a bumper 17 is attached between the lower body case 15, the upper body case 16, and the lid body 14. Furthermore, the main body case 13
A handle 18, which is accommodated along the top surface of the lid 14, is pivotally attached to the top surface.

The inside of the main body case 13 is divided into front and rear sections by a grid-like partition wall (not shown), and an electric air blower I! is provided in the space behind the partition wall. 21 are arranged. on the other hand,
A dust collection chamber 22 in which a space on the side of the partition wall faces the opening 12 and communicates with the intake side of the electric blower 21.
It has become. Further, an exhaust port 23 communicating with the exhaust side of the electric blower 21 is formed in the rear surface of the main body case 13 .

Furthermore, a mouth frame boulder 26 that also detachably holds the mouth frame 25 of the dust collecting bag 24 is pivotally attached to the upper part of the dust collecting chamber 22.

The lid 14 consists of a picture-shaped inner lid member 31 and a plate-shaped outer lid member 33 attached to form a storage space 32 on the outside, that is, above, of the inner lid member 31. There is. The lid body 14 has a shape that is inclined in a downward direction toward the front, but in particular, the outer arm body member 33 has a cross-sectional shape in the rearward direction that is an arc shape.
'K L/It's there. Note that a clamp 3 for holding the container body 14 in a closed state is provided at the front end of the inner lid member 31.
4 is pivoted r'j.

Furthermore, an inner opening 35 and an outer opening 36 are formed in the front portions of the inner lid member 31 and the outer lid member 33, respectively, so as to face the moeki storage space 32 and face each other.

A suction port member 41 is fixed in the storage space 32, and the suction port member 41 includes the inner opening 35.
A cylindrical suction port 42 is formed between the dust collecting chamber 22 and the outside space 036 to communicate the dust collection chamber 22 with the outside.

Further, an annular body 44 is sandwiched between a cylindrical portion 43 formed in the suction port member 41 surrounding the suction port 42 and the inner 11r body member 31. Further, at the inner end of the suction port 42, the annular body 44, j-3, and the inner opening 35, a suction port packing 45 made of rubber is attached to the mouth frame 25 of the dust collection bag 24 so as to be able to come into contact with and separate from the mouth frame 25. A check valve 46 that can be opened and closed is formed in this suction port backing 45 .

and a suction port member 4 having an outer end surface of the suction port 42;
The cross-sectional shape in the front-rear direction of the outer surface 41a of the outer cover member 33 is a circular arc shape concentric with the arc shape formed by the same direction cross-sectional shape of the inner surface 33b of the outer opening 36 portion of the outer lid member 33. A certain small gap is maintained between the outer surface 41a of the outer cover member 33 and the inner surface 33a of the outer lid member 33.

Note that the cross-sectional shape of the outer surface 33a of the outer lid member 33 in the front-rear direction also has an arc shape substantially concentric with the arc shape.

Furthermore, guide protrusions 47 are formed on both left and right edges of the outer surface 41a of the suction port member 41, respectively.

Furthermore, a recess 48 that opens outward is formed on the side of the suction port 42, and a locking hole 49 is formed in this recess 48.
are formed on the side surface, and a pair of through holes 50 are formed on the bottom surface. A pair of bottle holders (
(not shown) are provided, and these bin holders are electrically connected to a control circuit of an electric blower 21 provided in the vacuum cleaner main body 11.

Reference numeral 51 denotes a rigid, non-flexible plate-shaped shutter body, and this shutter body 51 connects the outer surface 41a of the suction port member 41 and the inner surface 33 of the outer lid member 33 within the storage space 32.
The suction port 42 is supported between the suction port 42 and the suction port 42 so as to be freely openable substantially in the front-rear direction. The shutter body 51 is fitted between the pair of guide protrusions 47 of the suction port member 41 and positioned in the left and right directions. The cross-sectional shape of the shutter body 51 in the front-rear direction is an arc concentric with the arc formed by the cross-sectional shape of the outer surface 41a of the suction port member 41. Note that the shutter body 51
The wall thickness is approximately equal to the distance between the outer surface 41a of the suction port member 41 and the inner surface 33b of the outer lid member 33. Further, a knob portion 52 is formed at the front end of the shutter body 51 and projects upwardly and outwardly from the outer opening 36 . Furthermore, the rear side of the suction port member 41 within the storage space 32 is a shutter body storage section 53 in which the open shutter body 51 is stored.

Reference numeral 61 denotes a hose which is an accessory, and this hose 61 includes a flexible hose main body 62 and an insertion pipe provided at one end of the hose main body 62 and connected to the suction port 42 with a removable fitting. portion 63, and a grip tube portion 64 provided at the other end of the bow main body 62.

Further, a cover pipe 65 is provided to cover the connecting portion between the hose main body 62 and the insertion pipe portion 63. This cover pipe 6 is brought into contact with the outer surface 41a of the suction port member 41.
The longitudinal cross-sectional shape of the bottom surface 65a of 5 is similar to that of the suction port member 41.
The cross-sectional shape of the outer surface 41a in the same direction is a circular arc shape that is concentric with the one circular arc shape and has the same diameter.

Further, a protrusion 66 that fits into the recess 48 of the suction port 42 is vertically provided on the bottom surface 65a of the cover pipe 65. 4
A claw portion 68 of a swingable clamp 67 that is removably engaged with the clamp 9 protrudes. Furthermore, a pair of terminal pins 69 are protruded from the bottom surface of the convex portion 66 and are inserted into the through holes 50 of the concave portions 48 and contacted with the pin receivers, respectively. On the other hand, the electric blower 21 is attached to the grip tube part 64.
An operating switch 70 is provided for turning on and off, and this operating switch 10 is electrically connected to the terminal bin 69.

Reference numeral 71 denotes an extension tube, and one end of the extension tube 71 is detachably fitted into and connected to the grip tube section 64. Further, 72 is a suction port body called a floor brush, and this suction port body 7
2 has a suction rib opening (not shown) formed on the bottom surface, and a joint pipe 73 at the rear that communicates with the dust suction opening and is detachably fitted and connected to the other end of the extension pipe 71. It is provided.

Next, the operation of the above embodiment will be explained.

For cleaning, first, as shown in FIG.
to open. In this state, the shutter body 51 is stored in the shutter body housing section 53 at the rear of the housing space 32 of both lid body members 31 and 33.

Then, the insertion pipe portion 63 of the hose 61 is fitted into the suction port 42 for connection. Accordingly, the claw portion 68 of the clamp 67 of the insertion tube portion 63 is engaged with the locking hole 49 of the suction port 42,
An insertion tube portion 63 is locked to the suction port 42 . At the same time, the terminal pin 69 of the insertion pipe portion 63 comes into contact with the pin receiver on the suction port 42 side, and the operation switch 70 of the hose 61 and the control circuit in the cleaner body 11 are electrically connected. Moreover, the bottom surface 65a of the cover pipe 65 of the insertion pipe part 63 is connected to the suction port member 4.
Abuts on the outer surface 41a of 1. At this time, since the bottom surface 65a of the cover tube 65 and the outer surface 41a of the suction port member 41 have the same arcuate cross-sectional shape, they fit tightly together. Therefore, rattling is prevented, and r! from the gap between the cover pipe 65 and the suction port member 41 is prevented. f
i. Dust is also prevented from entering, and poor contact between the terminal pin 69 and the pin receiver is prevented.

Further, a suction port body 72 is connected to the selection pipe portion 64 of the hose 61 via an extension pipe 71.

When the grip tube part 64 is held to suppress the dust, the dust sucked in together with the air through the suction port body 72 by the drive of the electric blower 21 is collected in the vacuum cleaner body 21 via the extension tube 71 and the hose 61. The dust enters the chamber 22 and is captured in the dust collection bag 24.

When storing the vacuum cleaner, remove the suction port body 72, extension pipe 11, and hose 61 from each other, operate the clamp 67 of the hose 61, and insert the claw portion 68 into the locking hole 49 of the suction port 42.
While removing the hose 61 from the suction port 42,
Remove from. Next, as shown by the solid line in FIG. 1, the shutter body 51 is vibrated forward and downward by pinching the knob portion 52, so that the shutter body 51 covers the suction port 42 from the outside.

When the shutter body 51 is opened and closed by vibrating almost back and forth in this way, the non-flexible shutter body 51 whose cross-sectional shape in the front-rear direction is an arc shape is moved from the outer surface of the suction port member 41 which has a concentric cross-sectional shape. 41a and the inner surface 33b of the outer lid member 33, and moves while maintaining its own shape on one rotating body surface, for example, a cylindrical surface. Therefore, the length of the trajectory in the front-rear direction as the shutter body 51 opens and closes, as well as the total length of the projection of this trajectory onto the horizontal plane, is shorter than the total length of the trajectory on the rotating body surface. Therefore, with respect to the stroke of the shutter body 51, the length of the housing portion of the shutter body 51 in the housing space 32 in the forward and backward directions can be made small, so that the suppressor main body 11 can be made smaller in design, especially in the front-back direction. .

In addition, since the shutter body 51 has rigidity, it has high strength, and when the suction port 42 is closed, the shutter body 51 is
It is not easily damaged even if subjected to IS.

Furthermore, since the shutter body 51 slides without being bent, it slides smoothly and is easy to open and close.

In addition, if a lot of dust accumulates in the collection bag 24, remove the clamp 34.
Open the opening 12 of the main body case 13 by rotating the lid 14 while operating the , remove the dust collection bag 24 from the mouth frame holder 26 and throw it away, attach a new @ pasting 24, and remove the lid 14. Close again.

By the way, conventionally, even if the design of the outer cover member is made to have an arcuate cross-section, the outer surface of the suction port member and the bottom surface of the insertion pipe portion of the hose have been made flat. As a result, an unnecessarily large gap is created between the outer opening of the outer lid member and the outer surface of the suction port member, which not only has a poor appearance but also allows dust to enter through the gap, especially when the hose is removed. This caused an electrical contact failure. In addition, when the closed flexible shutter body was pushed from the outside, the shutter body was easily bent and damaged. However, according to the above configuration, the outer surface 41a of the suction port member 41 is aligned with the outer n-body member 33.
Since the cross section is also arcuate, the gap between the outer opening 36 portion of the outer n-body member 33 and the outer surface 41a of the suction port member 41 can be made uniform to the minimum necessary, and therefore,
Not only does it have a good appearance, but it also prevents contact failure due to the intrusion of dust. Furthermore, since the closed shutter body 51 is tightly sandwiched between the outer lid member 33 and the suction port member 41, the shutter body 51 is unlikely to be damaged even if it receives an impact from the outside.

In the above embodiment, the suction port member 41 is fixed, but the suction port member having the suction port may be a rotating tool rotatably supported by the inner opening of the support. When the rotating tool is provided with a suction port in this manner, it is preferable that the outer surface and inner surface of the outer lid member or only this inner surface and the outer surface of the rotating tool be made into concentric spherical surfaces. By doing so, the rotation of the rotating tool will also be smooth. Of course, the shutter body should also be shaped accordingly. Further, the bottom surface of the cover tube of the hose may also be a spherical surface concentric with and having the same diameter as the outer surface of the rotating tool. This improves the adhesion between the two and reduces defects.

[Effects of the Invention] According to the present invention, the shutter body that can freely open and close the suction port is made rigid, and the cross-sectional shape of the shutter body along the opening direction is arcuate. The strength of the shutter body is higher than that of a shutter body with a bending property, and the shutter body is less likely to be damaged.In addition, the shutter body has good sliding properties because it does not bend with the opening movement. Since the straight line quality of the entire trajectory accompanying the opening of Gfl becomes shorter than the actual total length of the trajectory along the circular arc shape, miniaturization is possible.

[Brief explanation of the drawing]

Fig. 1 is a side view of a part of the vacuum cleaner main body showing an embodiment of the present invention in cross section, Fig. 2 is an enlarged sectional view of the vicinity of the suction port, and Fig. 3 is a perspective view of the entire vacuum cleaner. Figure 4 is a perspective view of the vicinity of the suction port and hose insertion pipe, Figure 5 is a perspective view of Figure 4 in the direction of the same, and Figure 6 is an exploded perspective view of the lid part of the same. be. 12...opening, 13...main case, 14...vessel body,
21...Electric blower, 22...Collection four chamber, 31...Inner lid member, 32...Storage space, 33...Outer F body member, 3
3b...Inner surface of outer lid member, 36...Outer opening, 4
1a...Outer surface of the suction port member with the outer end surface of the suction port,
42... Suction port, 51... Shutter body, 61... Hose, 63... Insertion pipe section.

Claims (1)

[Claims] (1) A main body case with an electric blower and a dust collection chamber communicating with the electric blower inside and an opening facing the dust collection chamber from above, an inner lid member, and an outer side of the inner lid member. A lid body is formed of an outer lid member attached to form a storage space, and the lid body is configured to open and close the opening. a suction port provided in the storage space that communicates the dust collection chamber with the outside and into which an insertion pipe portion of a hose is removably fitted; a shutter body that is slidably provided between the inner surface of the suction port and has rigidity for opening and closing the suction port, the cross section of the shutter body along the sliding direction is arcuate, and A vacuum cleaner characterized in that cross-sectional shapes of the end face and the inner surface of the outer lid member along the sliding direction are arcuate shapes concentric with the arcuate shape of the shutter body.