JP4464322B2 - Vacuum cleaner suction tool - Google Patents

Description

  The present invention relates to a vacuum cleaner suction tool, and more particularly, to an improvement in a vacuum cleaner suction tool having a high dust suction capability near a wall.

  This type of vacuum cleaner suction tool is disclosed in, for example, Japanese Patent Application Laid-Open No. 2004-222912 (Patent Document 1).

  The vacuum cleaner suction tool is provided in a suction body including a rotary brush and a drive motor that drives the rotary brush, a lower suction case that forms the suction body, an upper suction case, and a lower suction case. A rotating brush chamber for storing the rotating brush, and a suction port provided from the lower surface side to the front surface side of the rotating brush chamber.

  Moreover, although not shown by the said patent document 1, the suction tool for vacuum cleaners of the structure which provided the window opening extended in the longitudinal direction of a rotating brush chamber in the ceiling part of a rotating brush chamber exists.

JP 2004-222912 A

  The vacuum cleaner suction tool having the window opening has a front edge frame portion on the front side of the window opening. This front side edge frame portion was easily bent and was not sufficient in terms of strength.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a vacuum cleaner suction tool that copes with the above-described problems and is difficult to bend and has high mechanical strength.

  The present invention provides a suction body including a rotary brush, a drive motor that drives the rotary brush, a lower suction case that forms the suction main body, an upper suction case, and a rotation that houses the rotary brush and is provided in the lower suction case. A brush chamber and a suction port provided from the lower surface side to the front surface side of the rotating brush chamber, and the ceiling portion of the rotating brush chamber has a window opening extending in a longitudinal direction of the rotating brush chamber, It has a front edge frame portion and a rear edge frame portion of a window opening, and is provided with a reinforcing frame portion that spans between the front edge frame portion and the rear edge frame portion.

  ADVANTAGE OF THE INVENTION According to this invention, the front edge frame part cannot bend easily and can provide the suction tool for vacuum cleaners with strong mechanical strength by reinforcement of a reinforcement rack part.

  Embodiments of the present invention will be described with reference to the drawings.

  First, the outline of the vacuum cleaner suction tool will be described with reference to FIGS.

  The suction mouth body 1 includes a suction mouth 2, a rotating brush 3, a drive motor 4 that drives the rotating brush 3, a rotatable universal joint pipe 5, a bumper 6, and a rear brush 7.

  The mouthpiece body 1 is formed by a mouthpiece lower case 8 and a mouthpiece upper case 9. The lower suction case 8 and the upper suction case 9 are made of synthetic resin.

  The lower suction case 8 has a rotating brush chamber 20 in which the rotating brush 3 is accommodated, as shown in FIGS. The suction port 2 is formed from the lower surface side to the front surface side of the lower case 8. The lower surface side and the front surface side of the lower suction case 8 are also the lower surface side and the front surface side of the rotating brush chamber 20. For this reason, the suction port 2 is also formed from the lower surface side of the rotating brush chamber 20 to the front surface side.

  The lower suction case 8 has a motor chamber 22 that houses the drive motor 4 on the back side of the rear side wall 21 that forms the rotating brush chamber 20. A transmission rotating shaft 24 that transmits rotation to the rotating brush 3 is placed in the elongated groove 23 on the right side of the motor chamber 22.

  A control board or the like (not shown) for controlling the operation of the drive motor 4 is accommodated in the elongated groove 25 on the left side of the motor chamber 22.

  As shown in FIGS. 4 and 5, the transmission rotating shaft 24 has a transmission gear 26 at the tip. The rotation of the drive motor 4 is transmitted to the rotating brush 3 through the transmission gear 26 and a belt 28 that is hung on the brush gear 27 of the rotating brush 3.

  The rotating brush 3 has bearings 40 and 41 on both end sides. In the bearing 40, the lower suction case 8 is supported by a bearing support member 42 attached to the lower surface of the left end. In the bearing 41, the lower suction case 8 is supported by a bearing support member 43 attached to the lower surface of the right end.

  The bearing support member 42 and the bearing support member 43 have ridges on the lower surface. The vacuum cleaner suction cleaner is easy to clean because it slides with the scissors. By providing raised hair on the heel, it is more slippery and the silencing effect is enhanced.

  The motor cover 44 is attached to the lower suction case 8 so as to cover the drive motor 4. The upper surface of the motor cover 44 becomes a ventilation path.

  The upper suction case 9 has a joint connecting portion 45 on the rear side as shown in FIGS. The upper suction case 9 is attached to the lower suction case 8 so that the joint connecting portion 45 is put on the motor cover 44. An air passage is constituted by the inside of the joint connecting portion 45 and the upper surface of the motor cover 44. Air containing dust sucked from the suction port 2 flows to the universal joint pipe 5 through the ventilation path.

  The universal joint pipe 5 has a tip portion 47 in which an inlet 46 is formed. Shaft portions 48 are provided on both sides of the tip portion 47. The shaft portion 48 is rotatably supported by a lower bearing base 49 provided on the motor cover 44 and an upper bearing base (not shown) provided inside the joint connection portion 45. Thereby, the universal joint pipe | tube 5 is connected with the suction inlet main body 1 so that rotation of an up-down direction is possible.

  As shown in FIGS. 4 and 6, the upper suction case 9 has a window hole 60 extending in the longitudinal direction. A transparent window plate 61 is attached to the window hole 60. The upper suction case 9 has a fitting protrusion 62 at the front end.

  The lower suction case 8 has a window opening 63 extending in the longitudinal direction at the ceiling of the rotating brush chamber 20. Further, the ceiling portion has a front edge frame portion 64 on the front side of the window opening 63 and a rear edge frame portion 68 on the rear side. The rear edge frame portion 68 is formed to be continuous with the upper side of the rear side wall 21 of the rotating brush chamber 20.

  The front edge frame portion 64 has a fitting recess 65 at the front end. When the upper suction case 9 is combined with the lower suction case 8, the fitting protrusion 62 of the upper suction case 9 fits into the fitting recess 65 of the lower suction case 8. By fitting the fitting recess 65 and the fitting protrusion 62, the upper suction case 9 and the lower suction case 8 have a strong combined structure that does not shift in the lateral direction.

  As shown in FIGS. 4 and 5, the reinforcing frame 66 is provided so as to span the front edge frame portion 64 and the rear edge frame portion 68. Since the front edge frame portion 64 extends long along the window opening 63, it easily bends when pressed from above the upper suction case 9.

  However, since the front side edge frame portion 64 is supported like a beam by the reinforcing frame portion 66, it is not easily bent even if it is pushed from above the inlet case 9. A structure with high mechanical strength is provided by a simple configuration in which the reinforcing frame 66 is bridged from the rear edge frame portion 68 to the front edge frame portion 64.

  Since the rear edge frame portion 68 is supported by the rear side wall 21, the mechanical strength is high and strong. Since the front edge frame portion 64 is supported by the reinforcing frame portion 66 that extends from the strong rear edge frame portion 68, the structure is durable enough to withstand the force pushed from the upper case 9.

  The reinforcing frame 66 has reinforcing ribs 67 standing upward at both ends. The reinforcing ribs 67 make the reinforcing frame 66 strong. Since the reinforcing rib 67 is not directed downward but is directed upward, the contact with the reinforcing rib 67 is reduced during the rotation of the rotating brush 3. The hindrance to rotation of the rotating brush 3 is reduced.

  Further, two reinforcing frames 66 are provided at the center in the length direction of the front edge frame portion 64. The two reinforcing frames 66 are arranged so that the distance between the two reinforcing frames 66 increases toward the rear edge frame portion 68. Since the front edge frame portion 64 is easily bent at the center in the length direction, the center is supported by the reinforcing frame 66.

  The center of the front edge frame portion 64 and the rear edge frame portion 68 is also an outlet for air flowing through the air passage. The interval between the two reinforcing frames 66 is provided so that air flows out smoothly from the rotating brush chamber 20 toward the air passage. Then, the air flows out more smoothly by increasing the distance toward the rear edge frame portion 68.

  In consideration of the reinforcement of the front edge frame portion 64 and the smooth air flow, the interval between the two reinforcing frames 66 is separated and the interval increases toward the rear edge frame portion 68.

  In this vacuum cleaner suction tool, the rotating brush 3 in the rotating brush chamber 20 is visible from the upper side of the upper suction case 9. As shown in FIG. 5, the rear side wall 21 is provided with a light emitting element 69 including an LED on the inner surface side of the rotating brush chamber 20.

  With the light of the light emitting element 69, the rotating brush 3 and the rotating brush chamber 20 can be seen well. The light is slightly brighter in the dark under the furniture, making it easier to clean.

  The traveling roller will be described.

  The traveling roller 80 is provided on the lower surface of the mouthpiece body 1 as shown in FIGS. 3, 7, and 8. The running roller 80 improves the running of the vacuum cleaner suction tool. The roller 80 has raised brushes on the outer periphery. Brushing increases the noise reduction effect of flooring cleaning.

  As shown in FIGS. 7 and 8, the traveling roller 80 is rotatably supported by the lower suction case 8. The traveling roller 80 is provided adjacent to the rear edge of the suction port 2 provided below the rotating brush chamber 20.

  The traveling roller 80 is placed so that the outer periphery of the traveling roller 80 faces the suction port 2. For this reason, the outer periphery of the traveling roller 80 comes into contact with the brush tip of the rotating brush 3. During cleaning, the traveling roller 80 that rotates is well brushed by the rotating brush 3 whose outer periphery rotates, and the attached dust is scraped off well.

  Even with the brushed running roller 80 to which dust is likely to adhere, the adhering dust is scraped off well by the brushing of the rotating brush 3.

  By arranging the traveling roller 80 on the rear side of the suction port 2, the suction port 2 can also be provided on the front side of the lower suction case 8. Since the suction port 2 is provided from the lower surface side to the front surface side of the lower suction case 8, the rotary brush 3 can be provided close to the front side of the suction body 1. For this reason, the brush front end side of the rotating brush 3 protrudes to the front side of the mouthpiece body 1.

  Thereby, when cleaning the wall, the brush tip of the rotating brush 3 reaches the corner, so that the wall is cleaned well.

  Nanotitanium is applied to the brush of the rotating brush 3. By applying nano-titanium, fine dust is well adsorbed.

  The rear running roller 95 is provided at the lower rear portion of the lower suction case 8. Since the front side of the vacuum cleaner suction tool is supported on the floor by the eaves of the bearing support members 42 and 43, the intermediate traveling roller 80, and the rear rear traveling roller 95, stable traveling is performed.

  The switch wheel 96 is provided on the lower surface of the lower suction case 8. When the vacuum cleaner suction tool is placed on the floor, the switch wheel 96 is pushed, a micro switch (not shown) is turned on, and the drive motor 4 is driven. When the vacuum cleaner suction tool is lifted from the floor, the microswitch is turned off and the drive motor 4 is stopped.

  The bumper and shutter will be described.

  As shown in FIGS. 1, 4, and 7 to 9, the bumper 6 is mounted around the mouthpiece body 1. The bumper 6 is formed of a flexible material such as synthetic resin or synthetic rubber.

  The bumper 6 is attached so that the upper and lower mating surfaces of the lower suction case 8 and the upper suction case 9 are wound from the periphery, and covers a range of the vicinity of the front, side, and rear corners of the suction body 1. The cushioning action of the bumper 6 prevents the vacuum cleaner suction tool itself from being damaged and the furniture from being damaged even when the suction mouth body 1 hits the furniture during cleaning.

  As shown in FIG. 5, the lower suction case 8 has a suction port 2 that is cut off at the front side. The suction port 2 is partially blocked by a bumper 6. As shown in FIG. 9, the lower end of the bumper 6 is located at a position H3 (about 15 mm) higher than the lower surface of the lower suction case 8.

  The suction port 2 below the lower end of the bumper 6 is closed by a shutter 81 that hangs under the bumper 6. The lower end of the shutter 81 is located at a position H1 (about 2 mm) higher than the lower surface of the lower suction case 8. The shutter 81 has a waveform at the lower end. The height of the wave is H2 (about 6 mm).

  Raising the lower end of the shutter 81 by H1 (about 2 mm) anticipated the sinking of the vacuum cleaner suction tool during carpet cleaning. The lower end of the shutter 81 comes into contact with the carpet cleaning surface after being lowered by about 2 mm.

  The reason why the lower end of the shutter 81 is corrugated is to improve the suction in normal cleaning in which the vacuum cleaner suction tool is moved forward. By corrugating the lower end of the shutter 81, the front side suction is performed well from the opening between the waves, and the front side suction is improved.

  The shutter 81 is formed of a flexible material such as synthetic resin or synthetic rubber. As shown in FIGS. 10 to 13, the shutter 81 is attached so as to stick to the inside of the bumper 6. Since the shutter 8 is formed of a material having flexibility similar to that of the bumper 6, it can be formed integrally with the bumper 6. The integral molding eliminates the need to attach the shutter 81.

  The shutter 81 has a lower part 82 and an upper part 83. The lower part 82 functions as a shutter. As shown in FIGS. 12, 13, 15, and 16, the corrugated portion is provided in the lower portion 82, is thinner than the bumper 6, and tapers toward the lower side. As a result, the shutter 81 is easily bent and suction is performed well.

  The upper part 83 has two stages as shown in FIGS. The lower stage portion 84 has a plurality of insertion holes 85 side by side. The lower step portion 84 has an engagement recess 86 that is continuous with the insertion hole 85 on the inner surface side.

  The upper stage portion 87 has a plurality of fitting recesses 88 arranged side by side on the surfaces to be bonded to each other. The upper stage portion 87 has a plurality of locking projections 89 protruding laterally at the upper end.

  As shown in FIGS. 10, 11, and 13, the bumper 6 has an engagement piece 100 at the lower end. The bumper 6 has an insertion slot 101 on the upper side. The bumper 6 has a convex portion 102 on the inner surface side.

  As shown in FIGS. 12 and 13, the shutter 81 is attached to the inside of the bumper 6. The locking projection 89 of the shutter 81 is inserted into the insertion slot 101 of the bumper 6. The engagement piece 100 of the bumper 6 is inserted into the insertion hole 85 and fits into the engagement recess 86. The convex portion 102 of the bumper 6 fits into the fitting recess 88 of the shutter 81.

  As described above, the bumper 6 and the shutter 81 are joined together by fitting and engaging, so that the joining is not easily removed.

  Further, even if the bumper 6 and the shutter 81 are bent, since they are firmly connected, the bumper 6 and the shutter 81 are not peeled off and the rotation of the rotary brush 3 is not hindered.

  In cleaning at the wall, as shown in FIG. 8, the bumper 6 is pushed by the wall 103 and bent inward, so that the rotating brush 3 approaches the wall 103. Since the brush tip of the rotating brush 3 reaches the corner of the wall and brushes the corner well, dust at the corner of the wall can be removed well.

  Further, the suction from the rear side is strengthened by the amount that the front-side suction port 2 is blocked by the shutter 81. In the cleaning of the vacuum cleaner suction tool, the dust suction was improved as compared with the case where the shutter 81 was not provided.

  Further, since the shutter 81 is provided on the bumper 6, the rotating brush 3 comes closer to the wall as compared with a case where the shutter is provided on the lower suction case. For this reason, the cleaning of the corner near the wall is performed better when the shutter 81 is provided on the bumper 6 than when the shutter is provided on the lower suction case.

  As described above, by adopting a simple configuration in which the flexible shutter 81 that hangs down below the bumper 6 is provided on the front surface of the suction body 1, the vacuum cleaner suction tool is moved forward and backward as well as cleaning the wall. Dust is often sucked even during cleaning.

The external appearance perspective view of the suction tool for vacuum cleaners concerning the Example of this invention. The top view of the suction tool for vacuum cleaners concerning the Example of this invention. The bottom view of the suction tool for vacuum cleaners concerning the Example of this invention. The exploded perspective view of the suction tool for vacuum cleaners concerning the Example of this invention. The perspective view which concerns on the Example of this invention and looked at the lower case of the suction opening from the top. The perspective view which concerns on the Example of this invention and looked at the inlet case from the top. FIG. 4 is a longitudinal sectional view taken along the line AA of FIG. 3 according to the embodiment of the present invention. The figure which concerns on the Example of this invention and shows the state which pressed the suction tool for vacuum cleaners on the wall surface. The front view of the suction tool for vacuum cleaners concerning the Example of this invention. The perspective view which concerns on the Example of this invention, and showed the bumper and the shutter disassembled. The perspective view which looked at the bumper with which the shutter was attached concerning the Example of this invention from the inner side. FIG. 12 is an AA cross-sectional view of FIG. 11 according to the embodiment of the present invention. FIG. 12 is a sectional view taken along line BB in FIG. 11 according to the embodiment of the present invention. The perspective view which looked at the shutter single-piece | unit from the front side in connection with the Example of this invention. FIG. 15 is a cross-sectional view taken along the line AA of FIG. 14 according to the embodiment of the present invention. FIG. 15 is a sectional view taken along the line BB in FIG. 14 according to the embodiment of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 3 ... Rotating brush, 4 ... Drive motor, 1 ... Suction body, 8 ... Suction lower case, 9 ... Suction upper case, 20 ... Rotating brush chamber, 2 ... Suction port, 63 ... Window opening, 64 ... Front edge frame part, 68: Rear edge frame portion, 66: Reinforcement frame portion.

Claims (6)

Rotating brushes, a suction port body and a drive motor for driving the rotary brush, mouthpiece lower case to form the suction port body, and a mouthpiece on the case, the rotation for housing provided et been pre Symbol rotary brush to the suction port lower case A brush chamber and a suction port provided from the lower surface side to the front surface side of the rotating brush chamber;
The upper suction case has a window hole,
A window plate is attached to the window hole,
The lower suction case has a window opening extending in the longitudinal direction of the rotating brush chamber at the ceiling of the rotating brush chamber ,
The ceiling portion of the rotating brush chamber has a front edge frame portion of the window opening and a rear edge frame portion of the window opening, and a reinforcing frame portion that spans the front edge frame portion and the rear edge frame portion. A vacuum cleaner suction tool characterized by comprising: The vacuum cleaner suction tool according to claim 1,
A suction tool for a vacuum cleaner, characterized in that the reinforcing frame is provided at the center of the front edge frame part with two spaces apart and arranged so that the distance increases toward the rear edge frame part. . The vacuum cleaner suction tool according to claim 1,
A suction tool for a vacuum cleaner, wherein a reinforcing rib standing upward is provided on the reinforcing frame. The vacuum cleaner suction tool according to claim 1,
A vacuum cleaner suction tool comprising a light emitting element including an LED inside the rotating brush chamber. In the vacuum cleaner suction tool according to any one of claims 1 to 4,
The vacuum cleaner suction tool, wherein the window hole extends in a longitudinal direction of the upper case. In the vacuum cleaner suction tool according to any one of claims 1 to 5,
The vacuum cleaner suction tool, wherein the rear edge frame portion is formed to be continuous with an upper side of a rear side wall of the rotating brush chamber.

Images