KR100509360B1 - suction apparatus for floor - Google Patents

Abstract

Provided is a floor suction port that is capable of achieving both dust collecting performance during normal cleaning and cleaning of the wall (side).

A suction inlet body having an inlet 10 on its lower surface, a rotating brass storage chamber 11 formed in the inlet body, and a rotating bra facing the inlet 10 and freely rotating in the rotating brass storage chamber 11; A rotary brass storage chamber (11), comprising: a sieve (15), and a bottom suction inlet for receiving air sucked into the rotary brass storage chamber (11) by rotating the rotary brass (15). Switching the reverse rotation flow path 43 for directing the air sucked in the direction in the direction of rotating the rotary brush 15 and the forward rotation flow path 44 for directing the rotation brush 15 in the forward rotation direction A switching means (shutter 45 and film 46) was provided, and the switching means was configured to switch the rotational direction of the rotating brush from the reverse rotation to the forward rotation on the wall (side).

Description

Suction apparatus for floor

The present invention relates to a floor suction port of the vacuum cleaner, and more particularly to a floor suction port for receiving the air sucked into the rotary brass storage chamber to rotate the rotary brass.

In this type of floor suction port in the prior art, the rotation direction of the rotary brush is generally constant. The reverse rotation (as opposed to the rotation of the wheel when moving forward) has the advantage that it is easy to scrape off the debris on the rug, and if the forward rotation is carried out, the grain-like thing (rice grain, etc.) It is easy to scrape, and opening the opening in the lower part of the front does not deteriorate so much.

In addition, if the rotating direction of the rotating brush is set to reverse rotation, it is difficult to scrape the rubbish on the side wall, and if it is set to the forward rotation, there is a problem in scraping off debris or the like on the rug. Thus, when the rotation direction of the rotating brush is fixed in one direction, there is a problem that one advantage cannot be obtained.

In addition, rotating the rotating brush in the reverse direction with respect to the traveling direction of the floor suction port tends to scrape out scraps and other debris on the rug, so rotating the rotating brass in the reverse direction with respect to the traveling direction is Japanese Laid-Open Patent Application 2000-83875. A 47L 9/04, Japanese Patent Laid-Open No. 2000-37328 (A47L 9/04), and Japanese Patent Laid-Open No. 11-309096 (A47L 9/04) have been proposed.

However, when the wall is cleaned, it moves forward and touches the wall. However, since the rotating brass is rotating in the reverse direction, it rotates in the direction of blowing garbage toward the wall, which causes problems in dust collection performance on the wall. there was.

Therefore, this invention was made | formed in order to solve such a subject, and an object of this invention is to provide the floor suction opening which can compatible the dust collection performance at the time of normal cleaning and the cleaning of the wall (side).

In order to achieve the above object, the present invention, the suction inlet body having a suction port on the lower surface, the rotary brass storage chamber formed in the suction port body, and the rotating brass facing the suction port is freely stored in the rotating brass storage chamber And a bottom inlet for receiving air sucked into the rotary brass storage chamber as a rotary brush, and rotating the rotary brass to direct the air sucked into the rotary brass storage chamber in a direction of rotating the rotary brass reversely. And a switching means for switching the reverse rotation flow path and the forward rotation flow path directed toward the direction for forward rotation of the rotating brass, wherein the switching means converts the rotational direction of the rotational brush from the reverse rotation to the forward rotation at the side of the wall. It is characterized by.

In addition, the switching means is provided on the front of the inlet body, the shutter is in the open state when the lower side is in contact with the wall, and when the shutter is closed in conjunction with the shutter, and close the forward flow path and at the same time reverse rotation When the flow path is opened, and the shutter is in the open state, the reverse rotation flow path is closed and at the same time the forward rotation flow path is characterized by consisting of a sheet-like member.

In addition, the front side of the shutter has a shutter cover that touches the wall, it characterized in that the seat-like member is fixed to the shutter by using the shutter cover.

In addition, a guide portion for guiding the sheet-shaped member to the suction port side of the flow path is characterized in that the rib.

In addition, a rib is formed around the suction port of the flow path at substantially the entire circumference.

Further, it characterized in that the intermediate portion for connecting both sides of the movement direction of the opening formed in the sheet-like member is provided.

Further, it is characterized in that the provisional portion for temporarily fixing the free end side of the sheet-like member to the suction port body side is provided.

On the other hand, the switching means is provided on the front surface of the inlet port body when the valve does not touch the wall to the upper side to form the reverse rotation flow path, when touching the wall to open the lower side to the valve body to form the forward rotation flow path It is characterized by that.

In addition, the air used in the exhaust reflux vacuum cleaner, and sucked into the rotary brush storage chamber to rotate the rotary brush, is characterized in that it comprises a reflux exhaust from the cleaning main body.

EXAMPLE

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail with reference to drawings.

1 to 17 are views showing the configuration and operation of one embodiment in which the present invention is applied to a floor suction port used in an exhaust reflux vacuum cleaner, and the suction port body 1 of the present embodiment is shown in FIG. 4. 5, the upper case 2 and the upper case cover 3, the lower case 4 and the lower case cover 5, and the circumference between the lower case 4 and the lower case cover 5. Rotation tube 6 freely supported in the rotational direction, and connection tube 7 or the like freely supported in the up and down direction by the rotation tube 6, wherein the connection tube 7 is provided with a cleaning main body (not shown). It is used in connection with a connected hose or extension tube. In addition, the connection pipe 7 is formed with an intake flow passage 8 and an exhaust return passage 9.

The lower surface of the inlet body 1 is provided with a suction port 10 which is opened in the longitudinal direction, and a rotating brass storage chamber 11 formed by the lower case 4 and the lower case cover 5 is installed above. It is. In the rotary brass storage chamber 11, a pair of the brass body 12 and the braid 13 are spirally mounted to the core 14 so that the rotary brass 15 faces the suction port 10, respectively. Rotation is stored freely.

Bearing parts (not shown) are attached to both ends of the rotating shaft 15 of the rotary brush 15, and both bearing parts are configured to be mounted to mounting parts 17 formed on both sides of the lower case 4, as shown in FIG. have. One of the mounting portions 17 on both sides is provided with a cover (brass retainer) 18 for detachably fixing the bearing portion of the rotary brush 15. 10 to 12, the brass retainer 18 is detachably fixed by a clamp hook 21 having a slide operation portion 20 arranged on the rear side of the lower case 4. have. The clamp hook 21 has a fixing ring 23 inserted into the fixing hole 22 of the brass retainer 18 at one end thereof, and is attached to the spring mounting groove 24 of the lower case 4 at the other end side thereof. And a projection 26 abutting the spring 25.

By the way, if only the spring 25, the repulsive force of the spring 25 for closing the clamp hook 21 is weaker as the natural length, the repulsive force of the spring 25 is considerably weaker when the clamp hook 21 is closed Become. Therefore, there is a possibility that the clamp hook 21 opens due to vibration or small shock during normal use.

Therefore, in this embodiment, the elastic rib 27 using the restoring force of resin is formed in the said clamp hook 21, and the protrusion 28 is formed in the front-end | tip of this elastic rib 27. As shown in FIG. An inclined surface 29 for imparting restoring force to the elastic ribs 27 is formed on the lower case 4 side facing this, and a stepped portion is provided on the brass retainer 18 side of the inclined surface 27. 30) is formed. As a result, the biasing force and the creek feeling in the direction of closing the clamp hook 21 due to the restoring force of the resin can be obtained.

11 shows the state when the brass retainer 18 is dismantled and attached. At the time of disassembling the brass retainer 18, the fixing ring 23 of the clamp hook 21 is disassembled from the fixing hole 22 of the brass retainer 18 by sliding the slide operation part 20 in the direction of arrow R with a finger. Thus, the brass retainer 18 can be dismantled. Thereby, the rotating brush 15 can be dismantled and management such as cleaning can be performed.

In addition, when the brass retainer 18 is mounted, the brass retainer 18 is pushed in the direction of the arrow U. The brass retainer 18 is inclined to the inclined surface 31 of the fixing ring 23 protruding from the clamp hook 21. 18, the clamp hook 21 slides in the opening direction, and the fixing hook 23 of the clamp hook 21 automatically enters the fixing hole 22 of the brass retainer 18, thereby providing a clamp hook ( 21 is closed and the brass retainer 18 can be easily fixed. When the clamp hook 21 is closed, since the step 30 is formed at the end of the inclined surface 29, a creek feeling that can confirm the closed state can be obtained and a stronger holding force for maintaining the closed state is generated. do.

In this way, the slide 25 of the clamp hook 21 uses two types of restoring forces of the spring 25 and the resin (elastic rib 27) together to thereby maintain the spring 25 even when the clamp hook 21 is closed. ) And the resin's restoring force can maintain sufficient holding force. Moreover, even if one restoring force is lost, operation | movement is possible, and it is also conceivable to abolish the spring 25 for cost reduction.

On the other hand, on the bottom side of the suction port main body 1, the rear wheel 33 is provided in the lower side of the connection pipe 7, and both front and rear pairs of the front wheels 34 and 34 are provided on both sides.

In addition, a bottom wiping brush 35 is mounted on the rear bottom surface of the suction port 10 in the longitudinal direction of the suction port 10, and the floor wiping brush 35 has a suction port in addition to a function of wiping a floor or the like. (10) has a function of improving dust collection performance, such as a sealing function that suppresses a decrease in suction power due to a large amount of air being sucked from the rear side, and a function of blowing out the garbage that has not been sucked in the forward direction.

In addition, bumpers 36 are provided from the front surface of the suction port body 1 to both sides, and a raised cloth 37 is attached to corner portions on both sides of the bumper 36, so that bumpers ( Even if the corners of 36) collide with the wall or the furniture, the wall or the furniture is not damaged.

On the other hand, a space 40 is formed between the lower case cover 5 and the upper case 2 to communicate with the exhaust return passage 9 of the connection pipe 7. In addition, the upper case 2 and the upper case cover 3 corresponding to the left and right upper and lower surfaces of the intake body 1 are sucked to suck the outside air from the left and right, as shown in FIGS. 1, 6, and 7, respectively. Holes 41 and 42 are formed. In addition, the lower case cover 5 corresponding to the suction holes 41 and 42 has air to be sucked into the rotating brush storage chamber 11 as shown in FIGS. 6 and 7 (outer air A and reflux exhaust B). As shown in FIG. 6, the reverse rotation flow path 43 is directed toward the reverse rotation (rotation in the clockwise direction of the drawing) as shown in FIG. 6, and the rotation brush 15 is rotated as shown in FIG. 7. A forward rotation flow path 44 is formed to face the direction of forward rotation (rotation counterclockwise in the drawing). With the external air A, the reflux exhaust B touches the brass body 12 or the braid 13 of the rotary brush 15, so that the rotational force of the rotary brass 15 can be improved. 15) can be rotated.

Switching of each of the flow paths 43 and 44 is provided on the front surface of the suction port body 1, and when it touches the wall, the rotational shutter 45 which the lower side opens toward the inner side, and this shutter 45 And the interlock passage 43 is closed when the shutter 45 is in the closed state and the reverse rotation passage 43 is opened at the same time, and when the shutter 45 is in the open state, the reverse rotation passage ( It is made of, for example, a film (sheet-shaped member) 46 made of polyester, which closes 43 and simultaneously opens the forward rotation flow path 44.

As the said film 46, two things cut out in the shape as shown in FIG. 15 from sheet-like raw materials, such as polyester, are used. A fixing hole 47 for attaching to the shutter 45 is formed in the narrow portion of the film 46, and the intake opening 44a of the forward rotation passage 44 is formed in the wide portion. Corresponding to the front opening 48 and the inlet port 43a of the reverse rotation flow path 43, and the rear opening 49 formed to be longer than the front opening 48 so as to be hooked to a temporary fixing rib to be described later. Is formed. Each of the opening portions 48 and 40 is provided with intermediate portions 48a and 49a for connecting both sides in the moving direction so as to be divided into two at the center portion.

On the other hand, the shutter 45 opens and closes the opening formed between both front wheels 34 in the lower portion of the front side of the bumper 36, and is configured to be rotatable by the shutter shaft 50 provided at the upper portion thereof. It is biased in the direction which closes an opening part by the spring 51 attached to the shutter side 50. As shown in FIG. In addition, in this embodiment, although the spring 51 was provided only in one side of the shutter shaft 50, you may make it provide the spring 51 in both sides.

As shown in FIG. 13, FIG. 14, etc., the said shutter 45 has the projection 52 formed in the both sides of the front surface, and the through-hole which penetrates the front and back on the lower side of this projection 52. FIG. 53 and the annular rib 54 which hangs the said fixing hole 47 of the film 46 in the back (inner side) of this through-hole 53 are formed. It also has a shutter cover 55 covering the front protrusion 52, and extends the lower side of the shutter cover 55 to form a rib 56 extending to the rear side (inner side) of the through hole 53. And the hook part 57 which engages with the said annular rib 54 is formed in the front-end | tip.

When fixing the film 46 to the shutter 45, first, the fixing hole 47 of the film 46 is temporarily fixed to the annular rib 54 of the shutter 45. Then, while attaching the shutter cover 55 to the projection 52 on the front of the shutter 45, the hook portion 57 at the tip end of the lower rib 50 is extended through the through hole 53, By allowing the film 46 to engage with the temporarily fixed annular ribs 54, the film 46 is inserted into the through holes 53 and the ribs 56 of the shutter cover 55 to be fixed. As a result, the film 46 is fixed in positioning and is not pulled out.

What can be generally considered as a fixing method of said film is the insertion, welding, and adhesion by separate components dedicated for fixing, but it is disadvantageous in reducing cost and space saving. On the other hand, by effectively using the shutter cover 55 as in the present embodiment, the film 46 can be reliably fixed with low cost and space saving.

Moreover, the guide part which guides the said film 46 to the inlet port 43a, 44a side of the said reverse rotation flow path 43 or the forward rotation flow path 44, the back surface side of the upper case 2, and the lower case cover 5 The guide ribs 2a and 5a formed on both sides of the surface side of the () are formed. 16 shows guide ribs 2a and 5a of the upper case 2 and the lower case cover 5. The film 46 slides between these guide ribs 2a and 5a, and the opening and closing of the intake openings 43a and 44a are performed.

In addition, since the airtightness of the film 46 and the lower case cover 5 is required around the inlet port 43a, 44a of the said flow path 43, 44, the guide rib 5b is formed in the whole circumference. When the film 46 is guided from the surface, there is a possibility that the film 46 may malfunction due to excessive frictional resistance or clogging, but guide ribs 2a and 5a for guiding the film 46 are provided. By providing the entire circumferential ribs 5b around the intake openings 43a and 44a, the frictional resistance is reduced and clogging does not occur, and smooth sliding is possible. Moreover, the airtightness of the film 46 and the lower case cover 5 can be ensured. In addition, since each of the openings 48 and 49 of the film 46 is provided with intermediate portions 48a and 49a connecting both sides in the moving direction, it is difficult to deform both sides in the moving direction, so that the guide ribs 2a, 5a, 5b) or the like is eliminated, and the sliding motion can be performed more smoothly.

The film 46 is mounted to be fitted along the curved surface between the lower case cover 5 and the upper case 2, and the film 46 is cut out of a flat material. However, by the restoring force which tries to return to the plane of the film 46, it becomes difficult to assemble without following the curved surface of a case. Therefore, in this embodiment, the ring-shaped rib 58 for temporarily fixing is provided in the upper part on the lower case cover 5 side, and it is comprised so that the intake opening 49 of the back of the film 46 may be caught. Doing. The annular rib 58 prevents disassembly even if vibration or shock is applied during assembly. Moreover, at the time of use, it also serves as the guide which prevents the injury of the film 46.

17 is a step before mounting the upper case 2, the film 46 is integrated with the shutter 45, through the gap between the lower case 4 and the lower case cover (5) , Bends from horizontal to upward. Thereafter, the hook rib 58 provided on the lower case cover 5 is installed to follow the lower case cover 5 by hooking the intake port 49 on the back of the film 46, so that the assembly is easy. Lose.

Thus, by installing the annular rib 58 in the lower case cover 5, and temporarily fixing the film 46, by the restoring force of the film 46 at the time of assembly, the film 46 is lower case cover ( It solves the problem that it is difficult to assemble without following 5), and also serves as the guide of the film 46.

In the above structure, at the time of normal cleaning other than the wall (side), as shown in FIG. 6, the film 46 is in the state which closed the upper inlet opening 44a, and opened the upper rear inlet opening 43a. . Therefore, as indicated by the broken arrow, the outside brush A and the reflux exhaust B are intaken through the reverse rotation flow path 43 rather than the intake port 43a on the upper rear side, so that the rotary brass 15 rotates in the reverse direction. By this reverse rotation, it is possible to efficiently scrape off the scraps and the like on the carpet or to suck up the garbage from the suction port 10 on the lower surface.

On the other hand, as shown in FIG. 7, the shutter cover 55 which covers the protrusion 52 of the front of the shutter 45 touches a wall and goes to a downward direction at the wall side (side), so that the shutter 45 will be moved. The inner side is rotated inward and the lower side is opened, and in conjunction with the rotation of the shutter 45, the film 46 is guided to the guide ribs 2a, 5a, 5b of the case and slides. As a result, the film 46 closes the rear inlet port 43a in conjunction with opening the shutter 45, and opens the front inlet port 44a. Therefore, as indicated by the broken line arrow, the outside brush A and the reflux exhaust B are intaken through the forward rotation flow path 44 rather than the upper intake port 44a, so that the rotary brush 15 rotates forward. In this way, the shutter 45 is opened at the wall side and the rotational direction of the rotating brush 15 is changed from reverse rotation to forward rotation, so that the garbage accumulated on the bottom surface of the wall side can be sucked efficiently. Also, no rice grains are blown forward.

As such, the rotational direction of the rotary brush 15 of the floor suction port is reversely rotated at the time of normal cleaning and forward rotation at the wall (side), so that dust collection performance at the time of normal cleaning and cleaning of the wall (side) is performed. It will be compatible. In addition, by using the film 46, the intake air can be switched to efficiently guide the rotating brush 15, and the rotational efficiency can be improved. In addition, the above-described switching operation can be reliably performed.

18-22 is a figure which shows the structure and operation | movement of other embodiment of this invention, The code | symbol same as the said embodiment shows the same or equivalent part, and the figure same as the said embodiment is abbreviate | omitted.

In the said embodiment, although this invention was shown about the case where this invention was applied to the floor suction inlet used for an exhaust reflux type vacuum cleaner, this embodiment shows the case where it is applied to the normal vacuum cleaner which is not an exhaust reflux type.

The difference from the above embodiment is that the exhaust pipe is not provided in the connection pipe 7 of the inlet body 1, and as shown in Figs. 21 and 22, it rotates to rotate the rotary brush 15. The air sucked into the brass storage chamber 11 is the outside air A only, and the other structure is the same as that of the said embodiment.

As described above, since the rotary brush 15 can be driven to rotate only by the outside air A, the effect similar to the above embodiment can be obtained.

23-27 is a figure which shows the structure and operation | movement of further another embodiment of this invention, and the code | symbol same as the said embodiment has shown the same or equivalent part.

This embodiment is another embodiment in which the present invention is applied to a floor suction port used for an exhaust reflux vacuum cleaner. In the embodiment shown in FIGS. 1 to 17, the rotary brush 15 is disposed on the side wall. Although the shutter 45 and the film 46 are used to change the rotational direction of the inertia, in the present embodiment, the reverse rotation flow path is opened by opening the upper side when the inlet port body 1 is not in contact with the wall. And the valve body 60 which opens a lower side and forms a forward rotation flow path when it contacts a wall is used.

That is, the upper intake port 61 and the lower opening 62 are formed in the left and right two places on the front side of the suction port main body 1, and the rotation side 63 provided between these upper intake ports 61 and the lower opening 62. ) Is provided with a valve body 60 in which an upper opening / closing valve 64 for opening / closing the upper inlet 61 and a lower opening / closing valve 65 for opening / closing the lower opening 62 are approximately shaped. By the spring 66 attached to the east side 63, the upper inlet port 61 is opened and the lower opening 62 is closed. Moreover, the lever 67 which rotates downwards when it contacts a wall is provided in the front side of the valve body 60. As shown in FIG. In addition, an intake port 68 for reflux exhaust for supplying the reflux exhaust from the cleaning main body to the upper intake port 61 side through the space 40 between the lower case cover 5 and the upper case 2 is formed. have. Moreover, also in this embodiment, although the spring 66 was provided only in one side of the rotation shaft 63, you may make it provide the spring 66 in both sides.

In normal cleaning, as the valve body 60 shows in FIG. 26, the upper inlet port 61 is opened by the upper opening / closing valve 64, and the lower opening 62 is closed by the lower opening / closing valve 65. It is in the state, the reverse rotation flow path 70 for rotating the rotating brush 15 by the upper opening and closing valve 64 obliquely upward is formed. As a result, the reflux exhaust B along with the outside air A is guided to the upper opening / closing valve 64 and blown in the direction of the reverse rotation flow path 70. Therefore, the rotary brush 15 rotates in the reverse direction, and the reverse rotation rotates the carpet. Can be scraped off efficiently, and waste can be sucked from the inlet 10 of the lower surface.

On the other hand, as shown in FIG. 27, in the wall (side), as the lever 67 touches the wall and the valve body 60 rotates in the counterclockwise direction of the drawing, the upper inlet port 61 is the upper opening / closing valve. Closed by 64, the lower opening 62 is opened by the lower opening / closing valve 65, and the forward rotation flow path 71 is formed. The outside air A from the lower opening 62 is guided to the lower side of the rotary brush 15 by the lower surface of the lower opening / closing valve 65, and the reflux exhaust B is also rotated by the upper surface of the lower opening / closing valve 65. Since it is guided to the lower side of 15, the rotary brush 15 rotates forward. As a result, the waste accumulated on the bottom surface of the wall can be efficiently sucked, and no grains of rice are blown forward.

Thus, by using the valve body 60 of the above-mentioned structure, the rotation direction of the rotational brush 15 is reverse rotation at the time of normal cleaning, and it switches to forward rotation at the side of a wall, and it is comparatively simple structure. Therefore, the dust collecting performance at the time of normal cleaning and the cleaning of the wall (side) can be made compatible.

28-30 is a figure which shows the structure and operation | movement of another embodiment of this invention, The code | symbol same as the said embodiment shows the same or equivalent part, and the figure same as the said embodiment is abbreviate | omitted.

In the said embodiment, although this invention was shown about the case where this invention was applied to the floor suction inlet used for an exhaust reflux type vacuum cleaner, this embodiment shows the case where it is applied to the normal vacuum cleaner which is not an exhaust reflux type.

The difference from the above embodiment is that the exhaust return path is not provided in the connection pipe 7 of the inlet body 1, and as shown in Figs. 29 and 30, it rotates to rotate the rotary brush 15. The air sucked into the brass storage chamber 11 consists only of the outside air A, and the other structure is the same as that of the said embodiment.

As described above, since the rotary brush 15 can be driven by only the outside air A, the rotational force of the rotary brush 15 is slightly lowered even when applied to an ordinary vacuum cleaner other than the exhaust reflux type. If it is, the effect almost the same as the above embodiment can be obtained.

31 and 32 are views showing the structure and operation of still another embodiment of the present invention, in which the same reference numerals as those in the above embodiments indicate the same or corresponding parts.

In this embodiment, it is the same as the said embodiment, and shows the case where it is applied to the normal vacuum cleaner which is not an exhaust reflux type.

The difference from the above embodiment is that the inlet port 75 for sucking the outside air is formed in the upper part of the upper case 2, and the outside air A sucked from the inlet port 75 is lower case cover 5 and the upper case. An intake port 68 is formed which is supplied to the upper inlet port 61 side of the front surface through the space 40 between (2).

Even if it is comprised in this way, the effect similar to the said embodiment can be acquired, and since the intake air amount sucked in the rotary brass storage chamber 11 increases, the rotational force of the rotary brass 15 improves.

According to the present invention as described above, the switching means for switching the reverse suction flow path for directing the air sucked into the rotating brass storage chamber in the direction of rotating the rotating brass and the forward rotation flow path for directing the rotating brass in the forward rotation direction. And the switching means is configured to switch the rotational direction of the rotating brush from the reverse rotation to the forward rotation at the wall (side), so that the dust collecting performance at the time of cleaning the wall is normal. do.

In addition, the switching means is provided on the front of the inlet body, the shutter is in the open state when the lower side is in contact with the wall, and when the shutter is closed in conjunction with the shutter, and close the forward flow path and at the same time reverse rotation When the flow path is opened and the shutter is in the open state, the reverse rotation flow path is closed and the sheet-shaped member for opening the forward rotation flow path is formed. Efficiently inhale the waste accumulated on the bottom surface of the wall by scraping the back efficiently or sucking the garbage from the inlet of the lower surface, and the rotating brush rotates forward when the wall is cleaned. You can also do it, and you can't blow rice grains forward. In addition, by using the sheet-like member, it is possible to switch to guide the intake air to the rotating brush efficiently, and the rotational efficiency can be improved. In addition, the above-described switching operation can be reliably performed.

In addition, it has a shutter cover that touches the wall from the front side of the shutter, and by fixing the sheet-like member to the shutter by using the shutter cover, the shutter cover is effectively used, and the sheet-shaped member is inexpensively and space-saving. It can be fixed securely.

Further, by forming the guide portion for guiding the sheet-like member on the inlet port side of the flow path with ribs, friction resistance is reduced and clogging of garbage is not generated, and smooth sliding movement is possible.

In addition, by forming ribs around the intake port of the flow path at substantially the entire circumference, airtightness can be ensured.

In addition, by providing an intermediate portion that connects both sides of the moving direction of the opening formed in the sheet-shaped member, both sides of the moving direction are less likely to be deformed, thereby eliminating the likelihood of being caught by guide ribs and the like, and allowing a smoother sliding motion. Become.

In addition, by providing a temporary part for temporarily fixing the free end side of the sheet-like member to the suction port body side, temporarily fixing the free end side of the sheet-shaped member to the temporary part at the time of assembly, thereby preventing vibration and shock during assembly. Even if it is added, it is not disassembled and assembly is easy.

On the other hand, the switching means is provided on the front surface of the inlet port body when the valve does not touch the wall to the upper side to form the reverse rotation flow path, when touching the wall to open the lower side to the valve body to form the forward rotation flow path In this case, the dust collecting performance at the time of cleaning and the cleaning of the wall (side) can be made compatible with a relatively simple configuration.

In addition, the air used in the exhaust reflux vacuum cleaner and sucked into the rotary brush storage chamber to rotate the rotary brush includes the reflux exhaust from the cleaning main body, thereby improving the rotational force of the rotary brush.

1 is a top view of a floor suction port according to an embodiment of the present invention.

2 is a front view similarly.

3 is a bottom view similarly.

4 is similarly a side view.

5 is a longitudinal cross-sectional view similarly.

6 is a longitudinal cross-sectional view showing the main part structure of the embodiment and the action during normal cleaning;

7 is a longitudinal cross-sectional view which shows the effect | action at the time of the cleaning of a recessed part structure and the wall side (side) similarly.

FIG. 8 is an explanatory view showing the state of the film at the time of normal cleaning and at the cleaning of the wall side (side).

Fig. 9 is a front view similarly shown in section with a part of the shutter portion cut away.

FIG. 10 is a view showing a clamp mechanism of the brass retainer, in which (a) is a rear view and (b) is an A-A sectional view.

FIG. 11 is a view similarly showing the state at the time of disassembling and attaching the brass retainer, (a) is a rear view, and (b) is a B-B sectional view.

12 is similarly a rear view of the bottom suction port.

Fig. 13 is an explanatory diagram showing a fixing structure and a fixing method of the film to the shutter.

Fig. 14 is an exploded perspective view showing the fixing structure of the film on the shutter and the fixing method in the same manner.

15 is a plan view of the film.

Fig. 16 is a perspective view illustrating main parts of ribs formed on the lower case cover and the upper case to which the film is mounted;

The longitudinal cross-sectional view which shows the film state and temporarily fixed state before attaching an upper case.

18 is a bottom view of a floor suction port according to another embodiment of the present invention.

19 is a side view similarly.

20 is a longitudinal cross-sectional view similarly.

Fig. 21 is a longitudinal sectional view showing the main part structure of the embodiment and the action during normal cleaning;

FIG. 22 is a longitudinal cross-sectional view which shows the effect | action at the time of the cleaning of a recessed part structure and a wall (side) similarly.

Fig. 23 is a longitudinal sectional view of the central portion of the floor suction port according to still another embodiment of the present invention.

24 is similarly a front view.

25 is a front view similarly showing a valve body part in a partial cross section.

Fig. 26 is a longitudinal sectional view showing the main part structure of the embodiment and the action during normal cleaning;

27 is a longitudinal cross-sectional view which shows the effect | action at the time of the cleaning of a main part structure and a wall (side) similarly.

The longitudinal cross-sectional view of the center part of the floor suction port which concerns on another embodiment of this invention.

The longitudinal cross-sectional view which shows the main part structure of the said embodiment, and the action at the time of normal cleaning.

30 is a longitudinal cross-sectional view which shows the effect | action at the time of the cleaning of a main part structure and a wall side (side) similarly.

Fig. 31 is a longitudinal sectional view showing the main part structure of the floor suction port and the action during normal cleaning according to still another embodiment of the present invention;

FIG. 32 is a longitudinal cross-sectional view which shows the effect | action at the time of the cleaning of a main part structure and a wall side (side) similarly.

♠♠♠ Brief Description of Codes ♠♠♠

1 Suction body 2 Upper case

2a Guide rib 4 Lower case

5 Lower case cover 5a, 5b Guide rib

10 Suction port 11 Rotary brush storage room

15 Rotating Brass 18 Brass Retainer

21 Clamp hook 25 spring

27 Elastic rib 28 Projection

29 Slope 30 steps

41,42 Intake hole 43 Reverse rotation flow path

43a Intake port 44 Forward rotation flow path

44a intake 45 shutter

46 Film 47 Fastening Hole

48,49 opening 48a, 49a middle part

50 Shutter shaft 51 Spring

52 Protrusion 53 Through Hole

54 Ring rib 55 Shutter cover

56 ribs 57 hook

58 annular rib 60 valve body

61 Upper intake 62 Lower opening

63 pivot 64 upper opening / closing valve

65 Lower closing valve 66 Spring

67 Lever 68 Intake vent for reflux exhaust

70 Reverse Turnover 71 Forward Turnover

75 Intake A Ambient air

B reflux exhaust

Claims (9)

A suction inlet body having a suction port on the lower surface thereof, a rotary brass storage chamber formed in the suction port body, and a rotary brass facing the suction port and freely stored in the rotary brass storage chamber, the air sucked into the rotary brass storage chamber; In the intake for the floor to receive the rotary brush to rotate the rotary brass, And a switching means for switching the air sucked into the rotary brass storage chamber to the reverse rotation flow path for directing the rotation brass in the direction of reverse rotation and the forward rotation flow path for directing the rotation brass in the forward rotation direction. The inlet for the floor, characterized in that the rotational direction of the rotary brush is switched from the reverse rotation to the forward rotation on the wall (side). The method of claim 1, The switching means includes a shutter installed at the front of the inlet body and touching the wall so that the lower side is in an open state, and when the shutter is closed in conjunction with the shutter, the forward flow path is closed and the reverse rotation flow path is closed. And a shutter-shaped member which opens when the shutter is open and closes the reverse rotation flow path and simultaneously opens the forward rotation flow path. The method of claim 2, And a shutter cover which touches the wall on the front side of the shutter, wherein the sheet-like member is fixed to the shutter by using the shutter cover. The method of claim 2 or 3, A guide part for guiding the sheet-shaped member to the suction port side of the flow path is formed with a rib. The method of claim 4, wherein A floor intake port, wherein a rib is formed around the inlet port of the flow path at substantially the entire circumference. The method according to claim 2 or 3, Floor inlet characterized in that the intermediate portion for connecting both sides of the movement direction of the opening formed in the sheet-like member is provided. The method according to claim 2 or 3, Floor intake port characterized in that the provisional part for temporarily fixing the free end side of the seat-like member on the suction port body side. The method of claim 1, The switching means is formed on the front surface of the inlet port body, and when it is not in contact with the wall is formed of the valve body to form the reverse rotation flow path to open the upper side, and to contact the wall to open the lower side to form the forward rotation flow path Characterized inlet for floor. The method according to any one of claims 1, 2 or 8, A floor suction inlet, which is used in an exhaust reflux vacuum cleaner and sucked into the rotary brass storage chamber and rotates the rotary brass, includes a reflux exhaust from a cleaning main body.