KR19980069850A - Floor Nozzle of Electric Cleaner - Google Patents

Abstract

In addition to normal floor cleaning, small-area cleaning can be done without replacing the floor nozzle, and the purpose is to make the operation lighter even with brushes.

The wheel body 41a, 41b, 41c and the air path 34e, 34f are formed at the connection between the nozzle body 30 and the elbow 37 formed of the upper and lower cases 31 and 32, which are roughly half-shaped, and the elbow ( A rotary plate 34 which rotates in conjunction with the horizontal rotation of 37) is installed.

Description

Floor Nozzle of Electric Cleaner

1 is an exploded perspective view showing the overall configuration of a bottom nozzle of an electric sweeper according to an embodiment of the present invention;

2 is a bottom view of the bottom nozzle of the electric sweep according to the present embodiment;

Fig. 3 is a perspective view showing the state of the bottom nozzle of the electric sweeper of the present embodiment in the form of normal cleaning;

4 is a perspective view showing a state of the bottom nozzle form of the bottom nozzle of the electric cleaner according to the present embodiment;

Fig. 5 is a bottom view showing the state of the bottom nozzle form of the bottom nozzle of the electric sweeper according to the present embodiment;

Fig. 6 is a state diagram when the connection pipe of the bottom nozzle of the electric cleaning machine according to the present embodiment is brought close to the bottom surface;

7 is a longitudinal sectional view showing the relationship between the elbow and the rotating plate of the bottom nozzle of the electric sweeper according to the present embodiment;

8 is a perspective view in which the rotating plate of the bottom nozzle of the electric sweeper according to the present embodiment is turned over;

Fig. 9 is a longitudinal sectional view showing the engaged state of the rotating plate and the release lever in the normal cleaning form of the bottom nozzle of the electric sweeper according to the present embodiment;

Fig. 10 is a lateral cross-sectional view showing the engaged state of the rotating plate and the release lever in the normal cleaning form of the bottom nozzle of the electric sweeper according to the present embodiment;

11 is a bottom view of the bottom nozzle in the normal cleaning form of the bottom nozzle of the electric sweeper of the present embodiment;

Fig. 12 is a lateral cross-sectional view showing a state in which the release lever of the bottom nozzle of the electric sweeper of the present embodiment is operated to release the engagement with the rotating plate;

Fig. 13 is a lateral sectional view showing a state in which a rotating plate of a bottom nozzle of an electric sweeper according to the present embodiment is rotated;

Fig. 14 is a lateral cross sectional view showing a state where the bottom nozzle of the electric sweeper according to the present embodiment is engaged with the rotating plate and the release lever in the form of the intermittent sweep;

Fig. 15 is a bottom view of the bottom nozzle in the form of the intermittent sweep of the bottom nozzle of the electric sweeper of the present embodiment;

16 is a perspective view showing a bottom nozzle of the electric sweeper of the first conventional example;

17 is a bottom view showing the bottom nozzle of the electric sweeper of the first conventional example;

18 is a side view showing a state in which the carpet is cleaned with the bottom nozzle of the electric sweeper of the first conventional example;

Fig. 19 is a side view showing a state of sweeping the prongs of the bottom nozzle of the electric sweeper of the first conventional example;

20 is a view showing a state that a user cleans using the bottom nozzle furnace of the electric sweeper of the first conventional example;

21 is a bottom view showing the bottom nozzle of the electric sweeper of the second conventional example;

22 is an explanatory diagram for explaining a conventional problem;

23 is an explanatory diagram for explaining a conventional problem;

* Description of the symbols for the main parts of the drawings *

30: nozzle body 31: upper case

32: lower case 32d: sliding surface

32e: Rib of irregularities 34: Swivel plate

34b, 34c: Keyway 34d: Inlet

34e, 34f: Air path 35 of rotating plate 35: Guide plate on ring

35a: Each hole 35b: Hole (hinge coupling part)

36: coupling 36a: each cylinder

36b: cylinder 36c: protrusion (hinge coupling)

37: Elbow 38: Lock release lever

38b: Control part 41a, 41b, 41c of a lock release lever

42: brush body of the rotating plate 43: horizontal suction air passage (cross suction air passage)

44: Longitudinal suction stove (cross-shaped suction stove)

47: pedestrian wheel buffer means 49: communication hole (hole communicating hole)

51: center hole (communication hole of the air path and the keyway)

52: Small home stove

Detailed description of the invention

[Purpose of invention]

In using the electric sweeper, the purpose of cleaning the bottom surface as well as the cleaner in a narrower place is to replace the sea nozzles and to reduce the operating force even when using a brush.

[Technical Field to which the Invention belongs and Prior Art in the Field]

The present invention relates to a floor nozzle of an electric sweeper used in a general home.

16 to 20 show a first example of a bottom nozzle of a conventional electric sweeper described in, for example, Japanese Patent Laid-Open No. 61-240929, FIG. 16 is a perspective view thereof, and FIG. 17 is a bottom view thereof. FIG. 18 is a side view showing a state of cleaning the carpet with the bottom nozzle, FIG. 19 is a side view showing a state of cleaning the floor with the floor nozzle, and FIG. 20 is a user cleaning using the floor nozzle. It is a figure which shows the state which exists.

16 to 20, 1 is an approximately rectangular upper case, 2 is likewise a lower case and is joined through a bumper 3 formed of a soft material, and these upper and lower cases 1, 2 and bumper 3 are shown. The nozzle body 15 is comprised by this. 4 is an elbow bent in a rough shape, one end of which is fitted with a rotating material in the vertical plane with respect to the upper and lower cases, and the other end of which is fitted into the connecting pipe 5. 6 is a front wheel attached to the lower case 2 in the same direction as the elbow 4 in a rotational manner, and is attached to secure a constant gap between the lower case 2 and the bottom surface.

7 is a groove formed along the longitudinal direction of the lower case 2, and is an intake air passage whose outer end is opened, and is formed in approximately one straight line from the right end to the left end of the bottom nozzle. The intake air passage 7 communicates with the intake port 8 at the center portion and is inside the electric cleaning element body 18 through a flexible hose 17 having an elbow 4, a connecting pipe 5, and an operation portion 16 in front. The air path leading to the dust collecting chamber is formed. In addition, a lip piece 9 made of a combustible material such as rubber and a brush body 10 formed by bundling the brush in a bundle state are provided at the rear of the suction air passage 7 and substantially the entire width of the bottom nozzle. It is comprised so that the protrusion amount from the lower case 2 of the lip piece 9 and the brush body 10 can be adjusted with the adjustment body 11. The adjuster 11 is switched and operated by the kind "carpet", "floor, tatami" of the surface to be deformed.

In order to clean the carpet using the bottom nozzle of the first conventional example, the lip piece 9 and the brush body 10 are shown in Fig. 18 by operating the adjusting body 11, that is, the lip piece 9 is placed in the lower case. The inside of (2) is accommodated, and at the same time, the brush body 10 protrudes below the lower case 2 longer. As a result, the waist of the brush body 10 is weakened and largely bent as shown in the drawing so as to be sandwiched between the lower case 2 and the rug and to reduce the frictional resistance when the bottom nozzle is moved in the fusion unit. Doing.

In addition, in order to sweep | float using the bottom nozzle of a 1st conventional example, the state which displays the lip piece 9 and the brush body 10 in FIG. 19 by operating the adjuster 11, ie, the lip piece 9 and a brush, is shown. Together, the sieve 10 protrudes shorter than the lower case 2. As a result, the lip piece 9 is brought into contact with the bottom surface to prevent the rear of the suction port 8 by the lip piece 9 so as to increase the vacuum degree of the suction port part and to obtain a strong suction airflow. On the other hand, the short protruding brush body 10 is strong enough to support the bottom nozzle because the waist is strong, and cooperates with the front wheel 3 to secure a certain gap between the floor surface and the bottom case 2. It prevents scratches on the cotton.

Then, as shown in FIG. 20 after the adjustment body 11 switching operation according to the kind of the surface of the material to be ridden, the user grasps the operation part 16 in front of the flexible hose 17 and the bottom nozzle of the elbow 4. It moves back and forth in the same direction to suck the dust off the floor. The longitudinal direction of the bottom nozzle is perpendicular to the operation direction, and the sweep area can be widened, so that the sweep can be effectively cleaned. Since the front wheel 6 rotates in the operation direction, the operating force is light, and the front wheel 6 and the brush body 10 can move without absorbing the bottom surface.

The dust on the bottom surface and the dust on the side of the bottom nozzle are also sucked from the suction air passage 7 provided in the entire width of the bottom nozzle by the front and rear motion of the bottom nozzle, and the suction port 8, the elbow 4, and the connection pipe 5 In addition, the flexible hose 17 is guided to the dust collecting chamber of the electric cleaner main body 18.

The brush body 10 provided at the rear of the suction air passage 7 is configured to hook up the seam-shaped seams, and since the width of the brush body 10 is provided throughout the width of the bottom nozzle, there is no remaining seam.

Fig. 21 is a bottom view of a bottom nozzle showing a second example of a bottom nozzle of a conventional electric material machine shown in Japanese Patent Laid-Open No. 3-195526, for example, the first conventional example described above in the drawings; The same reference numerals are attached to the corresponding parts.

In FIG. 21, 21 is a spherical caster free to rotate 360 degrees provided at the left and right ends of the lower case 2. Before and after the suction port 8, the feathers 22, which are arranged so that both ends are widened outward, are provided at a height in contact with the bottom surface, and the slits 23 are provided at several places.

In the bottom nozzle of the second conventional example, the spherical caster 21 freely rotates 360 degrees, so that the bottom nozzle can be moved not only in the front and rear directions, but also in the inclined and lateral directions, and has a high degree of freedom in operability. In addition, when the feather 22 comes into contact with the bottom surface, the degree of vacuum of the suction part 24 including the suction port 8 surrounded by the feather 22 is increased, and the suction performance is improved. In addition, it is possible to suck dust from the slit 23 provided in the feather 22 with respect to the dust of the front part of the bottom nozzle.

[Technical problem to be achieved]

However, in the first conventional example in which the elbow 4 is rotated only in the vertical plane with respect to the nozzle body 15, the length of the floor nozzle is horizontal, so the width of the floor nozzle such as the gap between the furniture and the furniture is adjusted. When cleaning a place narrower than the facing width, the floor nozzle does not enter the cleaning surface, and even when the elbow 4 is laid horizontally, the floor nozzle is slightly inclined, and the width is slightly narrowed, and the gap is not entered. For this reason, it was necessary to remove the bottom nozzle from the connection pipe 5 and to attach it to the inter-nozzle nozzle.

This problem is, for example, as shown in Figs. 22 and 23, the elbow 4A part is fitted to the nozzle body 15 from the longitudinal direction and the elbow 4A part is mounted in a horizontal plane with respect to the nozzle body 15 in 90 degrees. In this case, the lip piece 9 and the bristle body 10 are parallel to the moving direction of the bottom nozzle and act as a shield on the side of the bottom nozzle, so that dust outside the corner of the wall is not sucked. In addition, a new problem arises that the seams on the carpet cannot be completely removed. In addition, since the shaft of the front wheel 6 is perpendicular to the normal moving direction of the bottom nozzle (used in the lengthwise state), the nozzle main body 15 is lengthened vertically as shown in Fig. 22 (in the moving direction of the nozzle). Long), the wheel 6 does not rotate, the operation force becomes heavy, and there is a problem that a groove is formed on the bottom surface by the edge of the front wheel 6. Although there is such a problem, the elbow can be adjusted only in the horizontal plane with respect to the nozzle body, for example, in Japanese Unexamined Patent Publication No. 45-23188 or Unexamined Patent Publication No. 42-18061.

In addition, the spherical caster 21 limited to 360 degrees is provided at the left and right ends of the lower case 2, and the feather 22 is arranged before and after the suction port 8, and the feather 22 on one side (front side) is disposed. In the second conventional example in which the slit 23 is provided there, as in the first conventional example described above, the feather 22 on the other side acts in turn, so that dust under the wall cannot be sucked, and the spherical caster 21 There is a problem that the non-straight side, the operation of the floor nozzle is difficult, the floor nozzle does not move to the place to be cleaned, the burden on the wrist if you try to move excessively.

Moreover, in the case of the felt and the hair-fed which are generally fixed, there also existed a problem that operation force became very heavy on a carpet, and a bottom nozzle did not move.

The technical problem of the present invention is to allow the cleaning of the ordinary floor surface as well as the cleaning of the narrow area without replacing the floor nozzle, and to reduce the coarseness even when using a brush.

The bottom nozzle of the electric sweeper which concerns on the 1st invention of this application is a structure described below. That is, in the floor nozzle of the electric cleaning machine which connects an elbow to the nozzle body which formed the substantially rectangular top-down case, it has a connection part of a nozzle body and an elbow, a wheel, and an air path, and rotates in conjunction with the horizontal rotation of an elbow. To install a rotating plate.

Moreover, the bottom nozzle of the electric sweeper which concerns on the 2nd foot of this application arrange | positions a wheel before and after the suction port of a rotating plate.

Moreover, the bottom nozzle of the electric sweeper which concerns on 4th invention of this application sets the position of the air path of a rotating plate between wheels.

Moreover, the bottom nozzle of the electric sweeper which concerns on 4th invention of this application arrange | positions the groove | channel and air path with many small rows on both sides of the rotating plate of the front part of a lower case.

Moreover, the bottom nozzle of the electric sweeper which concerns on 5th invention of this application sets the brush body in the rotating plate.

Moreover, the bottom nozzle of the electric sweeper which concerns on 6th invention of this application forms the rib of an unevenness | corrugation on the sliding surface which contacts the rotating plate of the upper and lower cases.

The bottom nozzle of the electric sweeper of the seventh aspect of the present application is formed on the lower surface of the lower case with a substantially cross-shaped suction air passage centered on the suction port of the lower case.

The bottom nozzle of the electric cleaning machine according to the eighth aspect of the present application forms key grooves at various positions on the main surface of the rotating plate by shifting the angles by 90 degrees with each other, and the bottom case is moved forward and backward in the longitudinal direction thereof. It is equipped with an externally operable release lever that fits or breaks in.

The bottom nozzle of the electric cleaning machine according to the ninth aspect of the present application has an elbow disposed on the opposite side to the unlocking lever operating portion according to the arrangement and the nozzle length direction perpendicular to the nozzle length direction with respect to the nozzle body during locking for each key groove of the rotating plate. The relative position with the rotating plate is defined so as to be arranged.

The bottom nozzle of the electric purifier according to the tenth aspect of the present application is set so that the edge portion of the key groove can move against the iron surface of the rib of the upper and lower cases, and a hole communicating with the suction air passage in the lower part of the key groove. It is installed.

The bottom nozzle of the electric purifier according to the eleventh invention of the present application has an angled hole between the elbow and the rotating plate, and an annular guide plate integral with the rotating plate, and one end of which is hinged in the angled hole of the guide plate in the ring state. At the same time, the other end is provided with a coupling formed in a cylindrical shape in which the rotation is freely connected in one end and the vertical plane of the elbow.

The bottom nozzle of the electric purifier according to the twelfth aspect of the present application sets the edge portion of the key groove so as to slide and slide with the convex portion of the rib of the upper and lower cases, and the hole communicating with the key groove in the coupling or ring-shaped guide plate. It is installed.

The bottom nozzle of the electric sweeper of the thirteenth invention of the present application is provided with a cushioning means for contacting the bottom surface only when the nozzle body is tilted at the end portion of the lower case opposite to the lock release lever operating portion in the longitudinal direction.

[Configuration and Function of Invention]

1 is an exploded perspective view showing the overall configuration of a bottom nozzle of an electric sweeper according to an embodiment of the present invention, FIG. 2 is a bottom view of these attachment states, FIG. 3 is a perspective view showing the form of a conventional sweeping state, Fig. 4 is a perspective view showing the form of the sweeping state of the narrow place, Fig. 5 is a bottom view of the sweeping form between the gaps, and Fig. 6 is a state diagram when the connection pipe is brought close to the bottom surface during the sweeping of the gap. 7 is a longitudinal sectional view showing the relationship between the elbow and the rotating plate, FIG. 8 is a perspective view showing the rotating plate in a doped state, and FIG. Fig. 10 is a cross sectional view showing the engagement state of the rotating plate and the release lever in the case of the conventional plastic material, Fig. 11 is the bottom view of the bottom nozzle in the case of the conventional material form, and Fig. 12 is the engagement with the rotating plate by operating the release lever. Unwrapped Fig. 13 is a cross sectional view showing a state in which a rotating plate is rotated, Fig. 14 is a cross sectional view showing a engagement state between a rotating plate and a release lever in the form of interstices, Fig. 15 is a bottom view of a bottom nozzle in the form of an intermetallic. to be.

In terms of angles, 31 is a rectangular upper case, 32 is a lower case and is joined through a bumper 33 formed of a soft material, and the nozzle body (31) and the bumper 33 are connected to each other by the upper and lower cases 31 and 32 and the bumper 33. 30) is configured. 34 is a swivel plate attached to the holes 31a and 32a provided at approximately the center of the upper and lower cases 31 and 32 so as to be horizontally rotatable with respect to the nozzle body 30, as shown in FIG. By making the flange portion 34a abut the end portion 32b of the lower case 32, the depth of insertion from the lower portion is defined. 35 is a ring-shaped guide plate having a left and right two-split configuration that is inserted into the holes 31a and 32a of the upper and lower cases 31 and 32 and integrated with the rotating plate 34. The rotating plate 34 with respect to the nozzle body 30 is shown. ) And horizontal rotation is possible. 36 is a coupling, the one end side is formed by the square cylinder 36a which can be inserted into the rectangular hole 35a formed in each guide plate 35, and the other end is formed by the cylinder 36b. The one end 37a of the elbow 37 is rotatably connected to the cylinder 36b in the vertical plane. The projections 36c are provided on both outer sides of the barrel 36a of the coupling 36 so as to be inserted into the holes 35b provided on the sidewalls of the holes 35a of the guide plates 35. The coupling 36 is hinged to the guide plate 35, so that the barrel 36a of the coupling 36 can rotate about the hinge in the square hole 35a as shown in FIG. It is.

Therefore, the elbow 37 is rotatable horizontally by the rotating plate 34 and rotated in the vertical plane by the hinge portion of the coupling 36, and is connected to the cylinder 36b of the coupling 36. As a result, it is configured to rotate freely in the vertical plane in the direction perpendicular to the vertical plane. In addition, the guide plate 35 does not necessarily have to be divided into two parts. For example, the guide plate 35 has an integral structure, and the hole for hinge engagement with the coupling 36 is formed in a long groove or an elongated hole formed at the upper end thereof. The coupling 36 may be prevented from falling off after assembling with the coupling 36.

38 is a lock release lever, which is movably attached along the guide rib 32c installed in the longitudinal direction of the lower case 32, and always acts inwardly (stepwise direction) by the coil spring 39 and at its tip. The lock plate 38a on the planetary fork fits into the first keyway 34b provided on the rotating plate 34 or the second keyway 34c formed by changing the first keyway 34b by 90 degrees. And the attachment angle between the rotating plate 34 and the lower case 32 is fixed, and in the state of being fitted to the first key groove 34b, it takes the normal cleaning form (Figs. 3, 10, and 11) and the second In the state fitted to the key groove 34c, the intermittent purging form (Figs. 4, 14 and 15) is taken. Moreover, the lock release lever 38 protrudes from the elongate hole 31b which the operation part 38b formed in the upper surface of the upper case 31, and can operate from the exterior.

As shown in Fig. 8, the rotating plate 34 is provided with a suction port 34d at approximately the center of its bottom, and intersects in a T phase centering on the suction port 34d and communicates with the suction port 34d. Air passages 34e are formed to form these T-shaped air passages 34f, which rotate in the same direction as the directions of the respective elbows 37 on the lower surface divided into three in these T-phase air passages 34e and 34f. The wheels 41a, 41b and 41c are attached. The wheels are arranged two (one wheel 41c) behind two wheels (wheels 41a and 41b) at the front, and the nozzle body 30 is usually supported at three points by these wheels 41.

Moreover, the brush body 42 is provided in the horizontal row at the rear of the suction port 34d at the lower surface of the rotating plate 34 so that the brush body 42 rotates in the horizontal plane integrally with the rotating plate 34.

On the lower surface of the lower case 32, the horizontal suction air passage 43 is formed in the longitudinal direction with the inlet 34d as the center and the outer end is opened, and the horizontal suction air passage centering on the suction port 34d. A vertical side suction air passage 44, which crosses (43) in a cross state and is opened at its outer end, is provided, and in the case of a general cleaning type, the air passage 44a and the horizontal side which are located in front of the suction port 34d of the vertical side suction air passage 44 are provided. The intake passage 43 communicates with the T-phase air passages 34e and 34f of the rotating plate 34, and in the case of the inter-phase material form, the air passage 43a located in front of the intake port 34d of the horizontal intake passage 43; The vertical side suction air passages 44 communicate with the T-phase air passages 34e and 34f of the rotary plate 34. At the time of these communication, the guide plate 35 and the coupling (from the suction port 34d of the rotary plate 34) are connected. 36) An air passage communicating with the dust collecting chamber inside the main body of the electric machine is formed through the elbow 37, the connecting pipe 5, and a flexible hose (not shown). There is so.

In addition, in the rear of the lower surface of the lower case 32, the enclosing body 45 is provided so that 1 part of the rotating body 34 and the enclosing body 42 may overlap in a longitudinal direction.

Again, a short bristle body 46 is also attached to both sides of the lower surface 32 of the lower case 32.

In addition, two auxiliary wheels 47 are provided at the end of the lower case 32 in the longitudinal direction opposite to the unlocking lever operating portion, i.e., at the end of the lower case 32 at the rear side.

The auxiliary wheel 47 has its attachment position set at a height that does not contact the bottom surface when the bottom nozzle is in parallel with the bottom surface.

Moreover, uneven | corrugated ribs 32e are provided in the butt-moving surface 32d in contact with the rotating plates 34 of the upper and lower cases 31 and 32, and the ribs 32e are provided even if sand dust enters these contact portions. In this way, the dust is prevented from slipping into the surface 32d, which prevents the rotary plate 34 from rotating.

Moreover, the lower part of each key groove 34b, 34c of the rotating plate 34 is formed in the dust collecting box 48, as shown in FIG. 9, and the sand dust which entered the recessed part of the rib 32e is the rotating plate 34. This rotation is configured to receive the dust collecting boxes 48 of the respective key grooves 34b and 34c.

In the lower part of the dust collecting box 48, that is, the inner wall of each of the key grooves 34b and 34c, a communication hole 49 connected to the suction air passage of the coupling 36 is formed as shown in FIG. Then, the dust received from the dust collecting box 48 can be sucked through the coupling 36.

Moreover, as shown in FIG. 9, the central hole 51 is provided in one of the projections 36c which fits into the hole 35b of the guide plate 35 of the coupling 36, and couples with the key groove 34b. The suction passage of the ring 36 communicates with each other, so that sand dust received by the dust collecting box 48 can be sucked.

In this case, the hole for sucking the dust dust received from the dust collecting box 48 is installed in the rotary plate 34 or the coupling 36 as an example, but in addition, for example, the guide plate 35 may be installed directly. .

11 and 12, a plurality of rows of small grooves are provided on both sides of the rotary plate 34 at the leading edge of the lower case 32, and the dust in the vicinity of the front of the bottom nozzle is removed. It is possible to reduce the dust from.

In the general cleaning mode in which the wide bottom surface is cleaned from the bottom nozzle of the electric sweeper of the present embodiment, as shown in Figs. 3, 10 and 11, the lock plate 38a of the unlocking lever 38 and the rotating plate It fits with the 1st key groove 34b of 34, and is fixed in the position which the longitudinal direction of a bottom nozzle becomes perpendicular to the fragrance of the elbow 37, and this state is existing by the coil spring 39. As shown in FIG.

The wheels 41a, 41b, and 41c integrally attached to the rotating plate 34 are set so that their rotational surfaces face the same direction as the elbows 37, and are configured to rotate relative to the front and rear movements of the bottom brush. As a result, the operating force is lightened by the wheel effect on the carpet as well as on the floor and tatami mats.

In this ordinary cleaning form, the air passage 44a located in front of the suction port 34d in the longitudinal suction passage 44 of the lower case 932, and the horizontal suction passage 43 are T-up winds of the rotary plate 34. Since it is interlocked with the furnaces 34e and 34f, the dust on the floor surface is separated from the air passage 44a and the horizontal suction air passage 43 by the front and rear motions of the bottom nozzles, and thus the T upper air passages 34e and 34f. It is sucked up from the suction port 34d of the rotating plate 34 through the guide plate 35, and the electric purifier is provided through the guide plate 35, the coupling 36, the elbow 37, the connecting pipe 5, and a flexible hose (not shown). It is led to the dust collecting chamber inside the main body.

At this time, the dust in front of the bottom nozzle is gathered toward the suction port 34d through the air passage 34f provided between the wheels 41a and 41b, and the seams or the like are connected to the wheels 41a and 41b or the rotating shaft thereof. Not cold

The brush body 42 on the side of the rotating plate 34 provided on the rear side of the suction port 34d and the brush body 45 on the lower case 32 side together constitute the width guide of the bottom nozzle, so that no seam on the rug is left. Can be captured without.

Next, when cleaning a narrow place, the operation part 38b of the lock release lever 38 slides outward against the force of the coil spring 39, and as shown in FIG. 13, the lock plate 38a of the front end is moved. Pulled out from the first keyway 34b to disengage the engagement with the rotary plate 34, and in that state, the elbow 37 is rotated 90 degrees so as to be opposite to the operation part 38b of the lock release lever 38, and the elbow The operation portion 38b is separated at the position where the longitudinal direction of the 37 and the nozzle body 30 are integrated.

As a result, the lock release lever 38 is fitted with the lock plate 38a at the tip end of the second keyway 34c by the force of the coil spring 39, and the bottom nozzle is shown in FIGS. 4, 14, and 15. As shown, it is fixed in the state of clearance between poles.

In the case of the clearance between the elbows 37, since the lock release lever 38 is in the opposite position to the operation portion 38b, the operation portion 38B of the lock release lever 38 interferes with the elbow 37. There is no

Therefore, operation of the operation part 38b in the case of returning to a normal cleaning form next is easy.

In this clearance cleaning form, the air passage 43a and the vertical side suction passage 44 which are located in front of the suction port 34d in the horizontal suction passage 43 of the lower case 32 are the T upper wind passages of the rotary plate 34 ( 34e) and 34f, the dust on the bottom surface passes through the T-tops 34e and 34f from the air passage 43a and the vertical side suction passage 44 by the front and rear operation of the bottom nozzle, and rotates the rotating plate. It is sucked up from the suction port 34d of the 34, and the house inside the basic body of the electric cleaning material through the guide plate 35, the coupling 36, the elbow 37, the connecting pipe 5 and the flexible hose (not shown). Is truly guided.

The wheels 41a, 41b, and 41c change angles integrally with the rotary plate 34, and their rotational surfaces rotate in the same direction as the elbows 37 with respect to the movement before and after the bottom brush.

For this reason, the bristle body 42 provided behind the suction port 34d of the rotating plate 34 also rotates in the horizontal plane with the rotating plate 34, and is orthogonal to the movement direction of the floor nozzle, and is substantially the entire width. Is placed.

Therefore, there are no leftover seams on the carpet.

In addition, since the suction air passage is formed in the front and left and right directions with respect to the moving direction of the floor nozzle, dust on the front and left and right walls is also efficiently absorbed.

The elbow 37 is attached to the nozzle body 30 via a coupling 36 hinged to the guide plate 35 on the rotating plate 34 side, and is rotatably configured in the vertical plane of the movement direction of the bottom nozzle. Therefore, even if there is a height limit in the clearance space to be cleaned, the operation part in front of the flexible hose can be approached to the floor surface, and the floor nozzle can be kept parallel to the floor surface even in this state.

If the height limit of the interspace space to be cleaned is large, it is conceivable for the user to bring the control unit immediately before the flexible hose closer to the bottom surface beyond the allowable range of the elbow side hinge coupling.

At this time, the nozzle body 30 rotates with the front side end portion in the longitudinal direction as a point, and the front end portion in the longitudinal direction rises, but in this state, as shown in FIG. 6, the auxiliary wheel 49 is connected to the bottom surface. The motor is brought into contact with each other, and the floor surface is prevented from being damaged at the front end just in the longitudinal direction of the floor nozzle.

Although the auxiliary wheel 47 is set in its attachment position at a height not in contact with the bottom surface when the bottom nozzle is in parallel with the bottom surface in spite of the sweeping form, the auxiliary wheel 47 is in contact with the bottom surface as long as the aforementioned inclination does not occur. No action is taken and this does not affect the normal movement of the floor nozzle.

Moreover, in order to prevent interference with the bottom surface by the inclination of the bottom nozzle, the cushioning means is not limited to the auxiliary wheel 47, For example, you may use a felt.

In addition to this, for example, a low friction material or a thick sheet subjected to low friction processing may be used to cover the corner portion of the bottom nozzle.

The lock release lever 38 is set in the longitudinal direction of the lower case 32 in the engagement direction with the rotating plate 34.

Therefore, even when the lock release lever 38 is momentarily moved in the wall direction by an inertial force, the front surface of the bottom nozzle is strongly collided with the wall or the like in the usual form of frequently repeating the movement of the bottom nozzle. The locking plate 38a does not come off from the key groove of the rotating plate 34 because the engagement direction of 38 is in a relationship intersecting with the operation direction of the bottom blush (direction of moving the inertia force).

Since the rib 32e of the unevenness | corrugation is provided in the butt-moving surface 32d which contacts the rotating plate 34 of the upper and lower cases 31 and 32, between the rotating plate 34 and the upper and lower sides 31 and 32. The sand dust that has entered can be sent to the recessed portion of the rib 32e and can be removed from the rotating surface, thereby preventing rotational defects caused by sand dust.

In addition, a dust collecting box receiving sand dust entering the recessed portion of the rib 32e is provided at the lower portion of each of the key grooves 34b and 34c of the rotating plate 34, and between the dust collecting box 48 and the suction passage, Since it communicates with the communication hole 49 formed in the corner wall of the key groove and the hollow part 51 provided in the projection 36c of the coupling 36, sand dust does not accumulate in the main part of the rib 32e. Therefore, good rotation of the rotating plate 34 can be obtained over a long period of time.

[Effects of the Invention]

As described above, according to the first invention of the present application, a rotary plate having wheels and an air passage and rotating in conjunction with the horizontal rotation of the elbow is provided at the connection portion of the nozzle body and the elbow. By changing the length and the angle of the elbows, it is possible to clean in a narrow place, and at the same time the wheel is rotated in the operation direction of the floor nozzle, not only when the floor and tatami, but also the operation force on the carpet is light and easy to use.

Further, according to the second invention of the present application, since the wheels are arranged before and after the suction port of the rotating plate, the operability at the time of changing the direction of the bottom nozzle during cleaning can be improved and the clearance between the floor and the floor can be secured at all times.

In addition, according to the third invention of the present application, since the position of the air path of the rotating plate is set between the wheels, dust is collected toward the suction port through the air path between the wheels.

This prevents seams from getting entangled with the wheels or their axis of rotation.

According to the fourth invention of the present application, since several rows of small groove air paths are provided on both sides of the rotating plate at the leading edge of the lower case, dust near the bottom edge of the bottom nozzle can also be sucked from the small groove air, and the suction efficiency is improved.

In addition, according to the invention of the present application 5, since a brush body is installed in the rotating plate, the brush body rotates in one horizontal plane with the rotating plate and is always perpendicular to the direction of movement of the bottom nozzle, and the seam-like seam collection performance is improved regardless of the shape of the material. do.

In addition, according to the invention of the present application 6, since ribs of the unevenness are formed on the mating surface in contact with the rotating plate of the upper and lower cases, sand dust entered between the rotating plate and the upper and lower cases can be sent to the recesses of the ribs to remove them from the rotating surface, It can prevent the rotation defect by sand dust.

According to the seventh aspect of the present application, since a suction cross of approximately the cross shape is formed on the lower surface of the lower case, centering on the suction port of the lower case, the dust of the front part of the bottom nozzle and the dust of both sides are always irrespective of the cleaning form. Can suck.

According to the eighth aspect of the present application, an externally operable lock capable of forming a key groove at various positions on the main surface of the rotating plate at an angle of 90 degrees to each other, and retreating in the longitudinal direction to the lower case to be caught or detached from any of the key grooves. Since the release lever has been installed, the lock release lever does not escape the keyway of the rotating plate with inertial force even when the front nozzle of the floor nozzle is hitting the wall in the form of a normal material that frequently repeats the movement of the bottom nozzle. Is improved. In addition, according to the ninth aspect of the present application, the elbow is arranged so as to be orthogonal to the nozzle body in the roxy for each key groove of the rotating plate in the nozzle length direction and to the side opposite to the lock release lever operating portion in accordance with the nozzle length direction. Since the relative position with the rotating plate is defined, the lock release lever operation part does not go under the elbow, and it is easy to change the cleaning type, and ensures safety without getting fingers caught between the elbow and the nozzle body during the switching operation. You can do it.

According to the tenth aspect of the present application, since the edge portion of the key groove is set to move against the convex surface of the rib of the upper and lower cases, and a hole communicating with the suction air is formed in the lower portion of the key groove, sand dust is not trapped in the recess of the rib. Good rotation of the rotating plate can be maintained over a long period of time.

According to the eleventh invention of the present application, a ring-shaped guide plate having a rectangular hole between the elbow and the rotating plate and integrated with the rotating plate, and one end side is formed by a square cylinder hinged in the rectangular hole of the ring state guide plate. Since the other end is provided with a coupling formed by a cylinder which is pivotally connected in one end with the elbow in a vertical plane, the elbow can be rotated in the vertical plane freely by the rotating plate and by the hinge portion of the coupling. By connecting with the cylinder, the rotor can be configured to rotate freely in the vertical plane in the direction orthogonal to the vertical plane, which increases the degree of freedom and further improves operability.

For this reason, even if there is a height limitation in the space to be cleaned, the operation portion immediately before the flexible hose can be brought close to the bottom surface, and the bottom nozzle can be kept in parallel with the bottom surface even in this state.

According to the twelfth aspect of the present application, since the edge portion of the key groove is set to face the convex surface of the rib of the upper and lower cases, a hole communicating with the key groove is provided in the guide plate in the coupling or ring state. There is no difference between them, and it is possible to maintain good rotation of the rotating plate for a long time.

Further, according to the thirteenth invention of the present application, at the end of the lower case in a position opposite to the lock release lever operating portion, a buffer means for contacting the bottom surface only when the nozzle body is tilted is provided so that the bottom nozzle is inclined with respect to the bottom surface. When it loses, the cushioning means can be brought into contact with the bottom surface, thereby preventing the bottom surface from being damaged.

Claims (3)

In the bottom nozzle of an electric cleaning machine, in which an elbow is connected to a nozzle body formed of a substantially vertical upper and lower case, the wheel body and the air passage are provided at the connection portion between the nozzle body and the elbow, and rotated in conjunction with the horizontal rotation of the elbow. Bottom nozzle of the electric sweeper, characterized in that the rotating plate is installed. In the bottom nozzle of an electric cleaning machine in which an elbow is connected to a nozzle body formed of a substantially vertical upper and lower casing, the wheel body and the air passage are provided at the connection portion between the nozzle body and the elbow, and in conjunction with the horizontal rotation of the elbow. It installs a rotating rotating plate and forms a key groove at several places on the circumferential surface of the rotating plate at an angle of 90 degrees to each other, and at the lower case, retracts in the longitudinal direction thereof to fit or detach from one of the key grooves. The bottom nozzle of the electric cleaning machine characterized by the installation of an externally operable lock release lever. In the bottom nozzle of the electric cleaner which connects an elbow to the nozzle body formed by the substantially vertical upper and lower cases, At the end of the position opposite to the lock release lever operating portion in the longitudinal direction of the lower case, a rotary plate is provided at the connection portion between the nozzle body and the elbow, which has a wheel and a path and rotates in conjunction with the horizontal rotation of the elbow. Bottom nozzle of the electric cleaning machine, characterized in that the cushioning means for contacting the bottom surface is provided only when the body is tilted.