KR950009469B1 - Electric cleaner - Google Patents

Abstract

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Description

Vacuum cleaner

1 is a bottom view of a first embodiment of the present invention.

2 is an explanatory view of the operation of the first embodiment.

3 is a front view and a side view of a second embodiment of the present invention.

4 is a bottom view of a third embodiment of the present invention.

5 is an explanatory view of the operation of the third embodiment.

6 is a perspective view of a fourth embodiment of the present invention.

7 is an enlarged view of the main part of FIG.

8 is a perspective view of an essential part of a fifth embodiment of the present invention, and A-A cross-sectional view thereof.

9 is an explanatory view of the operation of the fifth embodiment and a cross-sectional view taken along line B-B thereof.

10 is a perspective view of an essential part of a sixth embodiment of the present invention, and a bottom view thereof;

11 is a perspective view of an essential part of a seventh embodiment of the present invention, and a bottom view thereof;

12 is a front view of an eighth embodiment of the present invention.

13 is an explanatory view of the operation of the eighth embodiment.

14 is an explanatory view of the operation of the eighth embodiment.

FIG. 15 is a cross sectional view and a side view of an essential part of a ninth embodiment of the present invention; FIG.

16 is an explanatory view of the operation of the ninth embodiment.

17 is an explanatory view of the operation of the ninth embodiment.

18 is a perspective view showing the overall configuration of a conventional vacuum cleaner.

19 is a perspective view of the floor brush of FIG.

FIG. 20 is a bottom view of FIG. 17. FIG.

21 is a bottom view of a floor brush having a rotating brush with a conventional wheel.

22 is a bottom view of another conventional floor brush.

FIG. 23 is an explanatory view of the operation of the floor brush of FIG. 20. FIG.

24 is a perspective view of another conventional floor brush.

25 is a side view of a conventional handle pipe.

* Explanation of symbols for main parts of the drawings

1: cleaning body 3: hose

4: handle pipe 5: operation unit

6: extension pipe 7: floor brush

8 case 8a: opening hole

9: cover 9a: convex

10: elbow 11: inlet

12, 12a: rotating brush 13: shaft

14a: blades 16a, 16b, 17: bearing part

18a, 18b, 19a, 19b: holding part

25a, 25b: wheels 26a, 26b: rear wheels

27a, 27b: front wheels 30: spatura

31: hanging-out part 32: ablation part

33, 38: slit 34, 35: elastic material

37: elastic members 39, 40, 40a: elastic pieces

41: connection of the hose 42: connection of the extension pipe

43: handle portion A: main body

B: Hose Connection C: Cover

46, 57, 61: connection part 47, 58, 62: inclined surface

48, 55: window hole 49: vertical wall

51, 51a: passage of conductive line

52: push button 53: lever

54: spring 59: locking portion

The present invention relates to an electric vacuum cleaner comprising a cleaning base, a hose, a handle pipe, an extension pipe, a floor brush, and the like.

18 is a perspective view showing the configuration of the entire vacuum cleaner. In the drawings, reference numeral 1 denotes a cleaning main body having an electric blower, 2 denotes a power cord, 3 denotes a hose made of elastic material such as rubber, 4 denotes a handle pipe, and 5 denotes a handle pipe 4. The operation part provided in the), (6) is an extension pipe, (7) is a floor brush.

Next, the operation of the vacuum cleaner as described above will be described. After connecting the power cord (2) to the power source, the handle pipe (4) was operated to operate the electric blower in the cleaning main body (1), and the floor fitted to the front end of the extension pipe (6). The brush (7) slides along the floor surface, and the dust on the floor surface, together with the air, enters the cleaning base (1) through the floor brush (7) and the extension pipe (6), the handle pipe (4), and the hose (3). It is attracted and is gathered in the bag-shaped dust collector filter provided in the inside of the cleaning base body 1. As shown in FIG.

FIG. 19 is a perspective view of the floor brush 7, wherein an elbow 10 having a shaft fixed to be movable up and down is provided at the rear center thereof, and is connected to the extension pipe 6 through the elbow 10. At this time, since the inclination angle of the floor brush 7 with respect to the extension pipe 6 changes freely by moving the elbow 10 up and down, the bottom surface of the floor brush 7 is easy to adhere to the floor surface.

FIG. 20 is an internal bottom view of the floor brush 7, and a part of the floor brush 7 is shown in cross section. As shown in the figure, the elbow 10 is inserted into the frame provided in the case 8 with the hollow rotating shaft 10e at the rear center portion of the floor brush 7 and is freely moved up and down with the case 8. Reference numeral 10a denotes a cylindrical portion of the elbow 10, 10b denotes an expanded pipe portion integrally fitted thereto, and 10c denotes a fitting portion that connects to the extension pipe 6.

Reference numeral 12 denotes a rotary brush rotatably provided in the inlet 11, 20 denotes a belt, 21 denotes an electric motor, and a control device for the electric motor 21 by the belt 20, 23 denotes a control device. This is a power supply unit for introducing a power supply to (22). Moreover, the rotating brush 12 is equipped with the type | mold brush which arrange | positioned several rows which fixed and arranged many bundles 14 of synthetic resin hairs in one row to the shaft body 13, The bearing part 16a provided in both ends is provided. ) And 16b are rotatably held by the holding portions 18a and 18b provided in the case 8.

This operation is described next. The bottom surface of the floor brush (7) is in close contact with the floor surface, and the operation unit (5) is operated to operate the electric cleaning basic body (1) to suck in dust, and when it comes to the place where the carpet or the like is laid on the floor surface, the power supply part ( The control unit 22 sends a signal from the operating unit 5 to the operating device 21 through 23, and transmits the rotation to the rotary brush 12 via the belt 20 to rotate it. In this way, the effect is also enhanced to clean carpets and the like.

In the floor brush 7 of the conventional vacuum cleaner as described above, when the floor brush 7 is operated to clean the floor, the floor brush 7 is pressed, so there is a problem that the movement becomes heavy. This problem is especially problematic for long carpets.

Thus, the inventors of the present invention, as shown in Fig. 21, the wheel 25a having a diameter larger than the diameter of the shaft 13 at both ends of the shaft 13 of the rotary brush 12a and having a convex convex portion at the outer circumference thereof. ) And 25b, and the bearing portions 16a. And 17 of the rotary brush 12a are rotatably held by the holding portions 18a, 19a and 19b to clean the carpet and the like. In order to obtain a driving force to reduce the operating force required to move the floor brush 7, the invention was completed and a patent application was filed as Japanese Patent Application No. Hei 4-99617. In Fig. 21, 14a is a blade made of an elastic material such as rubber attached to the shaft 13 in place of the hair brush.

22 is a bottom view of the floor brush 7 without a rotating brush, where 8 is a case, 9 is a cover, 10 is an elbow, and 11 is a suction port. (26a) and (26b) are rear wheels provided on both sides of the elbow 10 at the rear of the lower surface, and (27a) and (27b) are front wheels provided on both sides of the inlet 11 at the front of the lower surface.

The vacuum cleaner equipped with the above-mentioned floor brush 7 drives the floor brush 7 to drive the rear wheels 26a, 26b, front wheels 27a, 27b to move on the floor surface, and attracts dust and the like. To perform the cleaning.

24 is a perspective view of the floor brush, where 8 is a case and 10 is an elbow. An opening hole 8a is provided on the front surface of the case 8 in order to soften the air suction force when cleaning the carpet or the like by the floor brush 7 and to attract dust or the like on the front surface of the floor brush 7. The opening hole 8a is made of an elastic material such as rubber or vinyl chloride, and has a spatula 30 in which a plurality of hanging portions 31 and a cutting portion 32 are alternately provided at predetermined intervals. ) Is attached. In addition, the lower end of the drooping part 31 is located slightly above the lower surface of the floor brush 7 (for example, about 1 mm).

In the floor brush 7, the dust on the lower surface of the floor brush 7 is sucked through the suction port, and the dust on the front surface of the floor brush 7 is sucked through the cutout of the spatula 30.

FIG. 25 is an enlarged view of the handle pipe 4 shown in FIG. 18, wherein 41 is a connection portion of the hose 3, 42 is a connection portion of the extension pipe 6, and 43 is a handle portion. Moreover, although not shown in figure, the operation part 5 is provided in proximity to the handle part 43. As shown in FIG.

In the vacuum cleaner having the handle pipe 4 as described above, as shown in FIG. 18, the handle 43 is held by one hand to operate the operation unit 5, and the floor brush 7 is moved to move the floor surface or the like. Run the cleaning.

As shown in FIG. 20, the rotary brush provided in the floor brush 7 includes only the seedling brush 14 or the braid 14a, and as shown in FIG. 21, the seedling brush 14 or the blade ( Some of the wheels 25a and 25b are provided on both sides of 14a, and the structures of the bearing portions 16a, 16b or 16a and 17 differ from each other.

For this reason, the structure and position of the holding | maintenance part 18a, 18b or 18a, 19a, 19b which hold | maintain these bearing parts 16a, 16b or 16a, 17 also mutually Since it is different, the case 8 which has the holding parts 18a, 18b or 18a, 19a, 19b adapted to each bearing structure must be operated. As a result, since the metal mold | die of case 8 must also be manufactured, not only cost was raised but also inventory management and production management were complicated.

Also, when the floor brush 7 shown in FIG. 22 is moved in the direction of the arrow as shown in FIG. 23 and the carpet 28 or the like is cleaned, the carpet or the like is placed in front of the rear wheels 26a and 26b. Since the hair is standing, the rear wheels 26a and 26b must move while overturning the hair. For this reason, a big power was required for cleaning, and fatigue was large.

In the floor brush 7 provided with the spatula 30 shown in FIG. 24, since the vacuum degree of the suction port is not reduced, there is a limit to increasing the number of the cutouts 32 or the number thereof. Therefore, dust or the like on the front surface of the floor brush 7 cannot be sucked efficiently, and when the floor brush 7 is moved, the hanging portion 31 of the spatula 30 becomes heavy on a carpet or the like. There was a problem.

Next, in the vacuum cleaner provided with the handle pipe 4 as shown in FIG. 25, the handle part 37 fell out of a hand during cleaning, and operability was not very good.

In addition, the handle pipe 4 and the extension pipe 6 connected thereto shown in FIG. 25 have a rotating brush in the floor brush 7 and a rotating brush 12. The latter may be connected to a conductive line connecting the operation portion 5 of the handle pipe 4 to the power supply portion of the floor brush 7, and thus the rotation must be prevented. Therefore, since they are different in structure, the handle pipe 4 was operated separately. This raises costs and makes inventory management complicated.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to provide an electric vacuum cleaner which is excellent in operability and suction performance and which can reduce cost.

The vacuum cleaner which concerns on this invention provides (1) the holding part which hold | maintains the bearing part of the rotating brush which has a blade etc. in the floor brush, and the holding part which holds the bearing part of the rotating brush which has wheels in both sides, such as a braid.

(2) The height of the up and down direction of the + -shaped bearing part of the rotating brush is 10% shorter than the length in the left and right directions.

(3) The bottom surface of the floor brush is provided with a convex portion at the front side of the rear wheel near the rear wheel and lower than the protruding length from the bottom surface of the rear wheel.

(4) The marine spatula is formed on the front of the floor brush by alternating elastic parts, which are arranged alternately with a drooping section and an ablation section, with slits facing upward from the lower end of the drooping section.

(5) The spatula is formed by alternately arranging rectangular members made of an elastic material and overlapping the front and rear sides.

(6) A spatula is provided with slit shaped like a trapezoid at a predetermined interval in the vertical direction of a long elastic member, and an elastic piece having a trapezoidal cross section and an elastic piece having an inverted trapezoidal cross section is alternately formed.

(7) is a thin cross section of an elastic piece having an inverted trapezoidal shape than an elastic piece having a trapezoidal shape.

(8) The handle part of the handle pipe is formed in a loop shape and the angle formed by the line passing through the center of the hose connection part and the intersection line of the handle part is set within 10 °.

(9) The handle pipe of the handle pipe is formed in a loop shape, and the handle pipe is formed by combining three parts of the main body, the hose connection part, and the cover part, and the coupling part where these three parts cross at one place passes through the center of the extension pipe connection part. It is set almost parallel to the line.

(10) The handle pipe is provided so that the connection pipe of the extension pipe whose diameter is reduced from the opening hole to the inclined surface inwardly, the window hole provided in the upper wall of the connection part, a cover covering the upper part of the connection part, and a cover between the upper wall and the cover of the connection part. And a lever which is rotatably fixed to the shaft, the tip of which has a lever protruding from the window hole of the connecting portion into the connecting portion, and which has a push button partially protruding from the cover.

(1) Since both the holding part holding the bearing part of the rotating brush which cuts a braid etc. in the floor brush and the holding part holding the bearing part of the rotating brush which has wheels on both sides, such as a braid, holding two types of rotating brushes We can share with one kind of floor brush.

(2) Since the height of the up-down direction of the + -shaped bearing part of the rotating brush is made 10% or more shorter than the length of the left-right direction, it can be easily identified up, down, left, and right by visual observation. For this reason, top, bottom, left, and right sides are not inserted incorrectly at the time of rough brushing.

(3) When moving the floor brush on the carpet or the like by providing a convex portion at the front of the rear wheel of the floor brush, the convex portion overturns the hair of the carpet or the like and the rear wheel moves on the floor brush. You can move it.

(4) The slits provided on the front surface of the floor brush are each provided with slits at substantially the center of the drooping portion, or a rectangular elastic material is alternately arranged at the front and rear sides of the side edges, and further, in the eight-shaped slits. Thereby forming an elastic piece having a trapezoidal cross section and an elastic piece having an inverted trapezoidal cross section, and forming an elastic piece having an inverted trapezoidal cross section thinner than an elastic piece having a trapezoidal cross section. It can improve the suction performance of dust, etc., and at the same time balance the vacuum performance of the suction port and the suction performance of the dust on the front of the floor brush.

(5) The handle portion of the handle pipe is formed in a loop shape and the angle between the line passing through the center portion of the hose and the intersection line of the handle portion is set within 10 ° so that the handle portion does not fall out of the hand during cleaning. The movement of the floor brush is also lightened, and the operability is improved.

(6) The handle pipe is formed by combining three parts of the main body, the hose connection part, and the cover part, and the handle pipes are formed by setting the coupling parts where these three parts intersect at one place almost in parallel with the line passing through the center of the extension pipe connection part. Production of the metal mold | die to mold becomes easy, and operation cost can be reduced.

(7) The handle pipe is provided with a connection portion of the extension pipe whose diameter is reduced from the opening hole inwardly to the inclined surface, a window hole provided in the connection portion, a cover and a lever, and a push button provided to be detached and attached between the connection portion and the cover. Thus, in the case of a floor brush having a rotating brush, a push button is provided between the connecting portion and the cover to lock the extension pipe inserted into the connecting portion with the lever of the push button. To remove the extension pipe, push the pushbutton to release the extension pipe.

In the case of the floor brush without the rotating brush, the push button is not attached to the connecting brush while the extension pipe is inserted while the extension pipe is rotated.

In this way, both extension pipes can be connected to one kind of handle pipe with or without a rotating brush.

Example 1

FIG. 1 is a bottom view showing the main part of a first embodiment of the present invention, and FIG. 2 is an explanatory view of its operation. In FIG. 1 and FIG. 2, reference numeral 7 denotes a floor brush, 8 denotes a case, and 11 denotes a suction port. 12 and 12a are rotation brushes, 13 are shafts, 14a are blades attached to the shafts 13, 15 are integrally formed with the shafts 13, and the belt 20 is It's a pulley. 16a and 16b are bearing parts provided at both ends of the shaft 13, and 17 are + -shaped provided at one side of the shaft 13 of the rotating brush 12a having wheels 25a and 25b. Bearing part (see Fig. 3).

(18a) and (18b) are the holding parts provided on the side wall of the case (8a) to hold the bearing portions (16a, 16b) of the wheelless rotary brush (12), (19a), (l9b) are wheels It is the holding | maintenance part provided in the top plate of the case 8 in order to hold the one bearing part 17 of the rotating brush 12a which has 25a and 25b. Moreover, the other bearing part 16a of the rotating brush 12a uses the holding part 18a. Here, the diameter W of the space | interval W of the holding | maintenance part 19a, 19b, and the shaft body 13 of the rotation brush 12, 12a is selected as W> d. The holding portions 18a and 18b may be provided on the top plate of the cover 8 in the vicinity of the side wall.

In the present embodiment configured as described above, in order to assemble the wheelless rotary brush 12 to the case 8, the shaft 13 having the blade 14a as shown in FIG. After placing the belt 20 on the pulley 15, the bearing portions 16a and 16b provided at both ends are inserted into the holding portions 18a and 18b to be rotatably held.

In addition, in order to assemble the rotating brush 12a having the wheels 25a and 25b to the case 8, as shown in FIG. 2, the shaft 13 having the blade 14a is attached to the pulley 15. As shown in FIG. The belt 20 is hooked and disposed in the suction port 11, the bearing portion 16a provided at one end is inserted into the holding portion 18a, and the bearing portion 17 provided at the other end is held by the holding portions 19a and ( 19b) to keep it rotatable.

Thus, in this embodiment, the holding | maintenance part 18a which hold | maintains the bearing part 16a, 16b of the rotary brush 12 without a wheel in the side wall of the case 8 of the floor brush 7, or its vicinity, A holding portion 19a for holding the bearing portion 17 on the pulley 15 side of the rotating brush 12a having the wheels 25a and 25b on the top plate of the case 8 while providing the 18b; Since 19b was provided and the one holding part 18a was combined, the other holding part 18b or 19a, 19b was made to hold the bearing part 16b or 17, respectively. It is possible to mount either of the rotary brushes 12 and 12a to the same case 8 with or without the wheels 25a and 25b.

Example 2

3 is a front view and a side view of an essential part of the second embodiment of the present invention. In the figure, 12a is a rotating brush, 13 is a shaft, 14a is a balllaid attached in a gentle spiral over almost the entire length of the shaft 13, 15 is a pulley, 16a Is a bearing part on one side, 17 is a + -shaped bearing part on the other side, and 25a and 25b are wheels provided integrally with the shaft body 13 on both sides of the blade 14a.

By the way, the floor brush 7 generally has a flat shape, and when the height dimension is restricted, the dimension a of the up-down direction of the bearing part 17 must also match the height of the floor brush 7. In this case, as described in the first embodiment, W / d is formed between the intervals W between the holding portions 19a and 19b of the bearing portion 17 and the diameter d of the shaft 13 of the rotary brush 12a. Since there is a relationship, the length b of the left and right of the bearing part 17 shall be made into the length suitable for this, and the length a of the up-down direction should be made short in accordance with the height of the floor brush 7, and asymmetrical configuration of right, left, and top and bottom shall be made.

However, it is difficult to visually discriminate only by shortening the length a in the vertical direction a of the bearing part 17 slightly shorter than the length b in the left and right directions in accordance with the above conditions, so that the bearing part 17 at the time of assembling the rotating brush 12a. May be attached to the case 8 with the left and right directions up and down. For this reason, not only can the bearing part 17 be held by the holding parts 19a and 19b, but the upper and lower heights become higher than the case 8, and the cover 9 cannot be attached.

Therefore, in the present embodiment, the height a in the up and down direction of the bearing portion 17 is 10% or more shorter than the length b in the left and right directions so that the user can easily distinguish the up, down, left and right by looking at the eyes. This can reliably prevent the wrong assembly of the rotary brush 12a.

Example 3

4 is a bottom view of the floor brush according to the third embodiment of the present invention. In the figure, reference numeral 7 denotes a floor brush without a floor brush, reference numeral 8 denotes a case, reference numeral 9 a cover, reference numeral 10 an elbow, and reference numeral 11 a suction port. (26a) and (26b) are rear wheels attached to the case (8a) such that the outer periphery on both sides of the elbow 10 is h lower than the bottom of the floorbrush 7 (see FIG. 5), (27a) And 27b are front wheels provided on both sides of the suction port 11.

9a is a convex portion protruding from the front of the rear wheels 26a and 26b and protruding from the cover 9 in close proximity to the rear wheels 26a and 26b, the protrusion height h _{1 of which} is shown in FIG. As shown in the drawing, h> h ₁ is selected to be lower than the height h from the lower surface of the floor brush 7 to the outer circumference of the rear wheels 26a and 26b.

In the present embodiment configured as described above, as shown in FIG. 5, when the floor brush 7 is moved in the direction of the arrow for cleaning the carpet 28 or the like, first, the convex portion 9a is made of the carpet 28 or the like. Since the hair falls over and the rear wheels 26a and 26b pass, the floor brush 7 can be smoothly moved with a small force.

Example 4

FIG. 6 is a perspective view of a floor brush according to a fourth embodiment of the present invention, and FIG. 7 is an enlarged perspective view of a main part thereof. In the drawing, (7) is a floor brush, (8) is a case, and (8a) is a case ( The opening hole 10 provided in the front of 8) is an elbow.

The opening 30 is made of an elastic material such as rubber or vinyl chloride, and the opening hole 8a provided on the front surface of the case 8 such that the lower end thereof is at the same position as the lower surface of the floor brush 7 or slightly above it. As a spatula attached to), several drooping part 31 and the ablation part 32 are alternately provided at predetermined intervals. Denoted at 33 is a slit provided upward from the lower end in the substantially center portion of the width direction of each of the droops 31.

In the present embodiment configured as described above, when the floor surface or the like is cleaned by the floor brush 7, dust or the like on the front surface of the floor brush 7 is sucked by the cutout portion 32 and the drooping portion 31 is also slit. Since it is made flexible by (33), it bends inward by a suction force and attracts the dust on the front surface.

As described above, according to the present embodiment, since the slits 33 are provided in the hanging portion 31 of the spatula 30 and made flexible, the spatula 30 is not affected by the degree of vacuum of the floor brush 7. Dust on the front surface can be sucked efficiently.

Example 5

8 is a main perspective view and A-A cross sectional view of the fifth embodiment of the present invention. 30 is a spatula attached to the opening hole 8a provided on the front surface of the floor brush 7, in this embodiment, a plurality of rectangular elastic members 34, (made of rubber, vinyl chloride, or the like) ( 35) by overlapping the front and rear side ends alternately to form a shutter shape.

When the suction is started in the present embodiment as described above, the inner elastic material 35 is sucked and bent inward as shown in FIG. 9 to suck the dust 36 on the front surface, but the outer elastic material ( 34) is hardly bent, so it remains almost intact. As a result, the vacuum degree of the suction part can be prevented from being lowered and the suction performance of the vacuum and the dust 36 can be balanced.

Example 6

FIG. 10 is a main perspective view and a bottom view of the sixth embodiment of the present invention. FIG. This embodiment is made of rubber, vinyl chloride, or the like, and slits 38 inclined in the shape of a bee to a predetermined width to an elastic member 37 having a size that blocks the opening hole 8A on the front surface of the floor brush 7. ), The cross section is formed in the trapezoidal elastic piece 39 and the cross section is formed in the trapezoidal elastic piece 40 by alternately forming the trapezoidal elastic piece (40).

In the spatter 30 configured as described above, when the suction is started, the elastic fragment 40 having an inverted trapezoidal cross section is sucked and bent inward to suck dust on the front surface, but the cross section is trapezoidal elastic fragment 39 ) Is hard to bend, so it remains almost intact. Thereby, the fall of the vacuum degree of a suction part can be prevented, and the suction performance of vacuum degree, dust, etc. can be balanced.

Example 7

11 is a main perspective view and a bottom view of the embodiment of FIG. 7 of the present invention. This embodiment is almost the same as the sixth embodiment, but the thickness of the elastic piece 40a having an inverted trapezoidal cross section is made thinner than the thickness of the elastic piece 39 having a trapezoidal shape with a cross section to greatly bend the bend by suction. This improves the suction performance of dust and the like.

Example 8

12 is a front view showing the main part of an eighth embodiment of the present invention. In the figure, 4 is a handle pipe, 41 is a connection part of the hose 3, 42 is a connection part of the extension pipe 6, and 43 is a loop shape handle part. Moreover, the handle pipe 4 which concerns on a present Example is comprised by combining the main body A, the hose connection part B, and the cover part C which are formed by molding synthetic resin. In addition, various switches or the like constituting the operation part 5 provided on the cover part C are provided on the upper surface of the main body A. When the floor brush 7 has the rotary brush 12, the operation part 5 and the floor brush 7 are provided. The passage of the conducting wire which continues to be provided) is provided.

The present inventors floor brush as a result of the various experiments with respect to operability of 7, a line passing through the center of the connecting portion 41 of the hose 3 0 ₁ -0 ₁ and the main body A and the cover of the grip part 43 part will intersect line ₀₂ -0 angle θ ₂ forming the alignment line (44) of the C is in the range of 0 ° ~10 °, i.e., line 0 ₁ -0 _1, 0 ₂ -0 ₂ is parallel or as much as possible, or It was found that the closer to parallel the better the operability.

According to the results of experiments by the inventors of the present invention as described above, a tile 0 _{2-0 2-wire} above-described as the bottom surface of the brush (7) is in a substantially parallel state in contact with the floor surface and the floor surface substantially parallel to, and Moreover, it became clear that the smaller the part which came out from the back part of the connection part 41 of the hose 3 connected to the connection part 41, the better its operability.

So that when the operation to be substantially parallel to the 0 ₂ -0 _2-wire as shown in Fig. 13 in order to improve the operability, if the angle θ is large sangkki connecting portion 41 is inclined to the top sleeves (3) The portion coming out of the back becomes large and a large force is required to support the weight of the hose 3, and the operability decreases.

Therefore, in order to reduce the portion coming out from the rear portion of the connection portion 41 of the hose 3 and to reduce the force supporting the weight of the hose 3, the handle 43 is held in parallel with the 0 ₁ -0 ₁ line. When the θ is large, as shown in FIG. 14, the inclination with respect to the floor surface increases, so that the floor brush 7 does not adhere securely to the floor surface, the suction performance is lowered, and the thumb side is upward. In the grip 43, the burden is placed on the hand and the fatigue is great.

From this to improve the operability of the floor brush 7 by the 0 _1-0 close to the _first line and parallel as possible to 0 _{2-0 2-wire,} and the angle θ formed by the proton in the range of 0~10 ° Can be.

Since the present embodiment is configured as described above, the hand pipe is not taken out during cleaning and the strength can be ensured, so that the handle pipe is strong, convenient to use and excellent in operability.

Example 9

In addition, the three alignment lines 45 of the main body A, the hose connection part B, and the cover part C are configured to be parallel to the 0- 0 line passing through the central portion of the connection part 42 of the extension pipe 6.

This configuration simplifies the structure of the mold, reduces the production cost, and facilitates the attachment of parts.

Example 10

FIG. 15 shows a tenth embodiment of the present invention, which is a sectional view of a main part of the handle pipe and a side view thereof. Reference numeral 46 is a connecting portion for forming a connection portion 42 between the handle pipe 4 and the extension pipe 6, the inner diameter of which is reduced in diameter to a gentle inclined surface 47 as it goes inward from the opening hole, and thus the length L. When it reaches, it is connected to the connection portion 41 of the lake.

48 is a window hole provided in the connection part 46, 49 is a vertical wall provided in the both sides of the window hole 48, 50 is a stopper provided in the opening hole part, and the connection terminal of a conductive wire is provided. Reference numeral 51 is a passage of a conductive line formed between the peripheral wall of the connecting portion 46 and the cover C.

Next, the operation of the present embodiment will be described. 16 shows an example in which an extension pipe 6 of a floor brush having a rotary brush is connected to the handle pipe 4 according to the present embodiment. 52 is a cylindrical push button provided to be detached and attached between the connecting portion 46 and the cover C. The central portion of the lever 53 integrally formed with the push button 52 is rotatably mounted on the vertical wall 49. This push button 52 is partially pushed out from the window hole 55 provided in the cover C. Reference numeral 54 is a spring fitted between the push button 52 and the connecting portion 46, and applies a force to always rotate the lever 53 clockwise. In addition, this push button 52 is attached only in the case of the handle pipe 4 for floor brushes which have a rotating brush.

(6) is an extension pipe of an outer diameter substantially the same as the outer diameter of the connecting portion 46 of the handle pipe 4, and at the distal end, the connection terminal is opposed to the stopper 50 of the handle pipe 4 at the position L ₁ . The stopper 56 which has is provided, and the inclined surface 58 corresponding to the inclined surface 47 of the connection part 46 of the handle pipe 4 is formed from this stopper 56 to the front-end | tip part, and the diameter is gradually reduced, and the connection part ( 57) is formed. Reference numeral 59 is a locking portion formed near the tip of the connecting portion 57, and the tip of the lever 53 provided on the push button 52 of the handle pipe 4 is caught. 60 is a cover forming the passage 51a of the conductive line.

In order to connect the extension pipe 6 to the handle pipe 4, the connection portion 57 of the extension pipe 6 is inserted into the connection portion 46 of the handle pipe 4. When it is fitted, the tip portion pushes forward the lever 53 of the push button 52, and the stopper 56 touches the stopper 50 of the handle pipe 4 so that the conductive wire is connected and stops. At this time, the leading end of the lever 53 of the push button 52 is caught by the locking portion 59 of the extension pipe 6. As a result, the handle pipe 4 and the extension pipe 6 are locked to prevent separation and rotation.

When removing the extension pipe 6 from the handle pipe 4, press the push button 52, rotate the lever 53 counterclockwise to release the engagement with the catch 59, and extend the extension pipe 6 ) Is good.

17 is a cross-sectional view showing an example of connecting the extension pipe 6 of the floor brush without the rotary brush to the handle pipe 4. (6) is an extension pipe of an outer diameter approximately equal to the inner diameter of the opening hole of the connection portion 46 of the handle pipe 4, the inclined surface of the connection portion 46 of the handle pipe 4 from the leading end to the position L ₂ ( Corresponding to 47), it is formed on the inclined surface 62 which sequentially reduces the diameter to form the connecting portion 61. In addition, 63 may close the window hole 55 by the shielding material which closed the window hole 48 in order to prevent the invasion of air or dust.

In order to connect the extension pipe 6 to the handle pipe 4 as described above, the front end portion of the extension pipe 6 may be inserted into the opening hole of the connecting portion 46 of the handle pipe 4 and rotated. The tip of the extension pipe 6 stops when it reaches the inner end of the connecting portion 46 of the handle pipe 4. Both are connected and held in position.

When removing the extension pipe 6, the extension pipe 6 may be removed while rotating.

Thus, in this embodiment, since the extension pipe 6 of the floor brush with the rotating brush and the extension pipe 6 of the floor brush without the rotating brush can be connected to one kind of the handle pipe 4, the handle pipe The production cost of (4) can be reduced and inventory management can be simplified.

As apparent from the above description, according to the present invention, the following effects can be obtained, respectively.

(1) Since the holding part holding the bearing part of the rotating brush which has a braid etc. in the floor brush and the holding part holding the bearing part of the rotating brush which has wheels on both sides, such as a blade, the one type of floor brush is shared, Any of the rotating brushes can be mounted.

For this reason, since only one type of mold is used for molding the floor brush, the cost of the mold and the floor brush can be reduced, and inventory control and production management of the floor brush can be facilitated, thereby improving productivity.

(2) Since the height of the up and down direction of the + -shaped bearing of the rotating brush is shortened by 10% or more shorter than the length in the left and right directions, the eyes can be easily identified up, down, left and right. For this reason, there is no fear of assembling up, down, left, and right incorrectly at the time of assembly, and productivity can be improved.

(3) Since the convex part is provided on the front side of the rear wheel of the bottom of the floor brush, when moving the floor brush on the carpet or the like, the convex part overturns the hair of the carpet or the like and the rear wheel moves on the floor. The floor brush can be moved to improve operability.

(4) A slit is provided in the hanging portion of the spatula made up of the hanging portion and the cutting portion, or a rectangular elastic material is alternately arranged at the front and rear sides of the side end portion, or further, the cross section is formed by an eight-shaped slit. The vacuum degree of the floor brush is lowered by alternately forming an elastic piece having a trapezoidal shape and an elastic piece having an inverted trapezoidal shape, and forming an elastic piece having an inverted trapezoidal shape with a thinner cross section than an elastic piece having a trapezoidal shape. It is possible to improve the suction performance of the dust on the front surface and to balance the suction performance of the vacuum on the suction port and the dust on the front surface of the floor brush without making it work.

(5) The handle pipe of the handle pipe is formed in a loop shape, and the angle between the line passing through the lake connection part and the cross line of the handle part is set within 10 °, so that the hand does not fall out of the handle part during cleaning, and the floor brush is not removed. The movement of lighter is also lighter, and it is possible to obtain an electric vacuum cleaner with excellent strength and excellent operability.

(6) The handle pipe is formed by combining three parts of the main body, the lake connection part, and the cover part, and the coupling parts intersecting in one place are set to be substantially parallel to the line passing through the center of the extension pipe connection part, thereby forming the handle pipe. It is easy to manufacture the mold, and the cost of the mold and the handle pipe can be reduced.

(7) Push-buttons provided with a connection part of which the diameter of the extension pipe of the handle pipe is reduced from the opening hole inwardly to the inclined surface, the window hole provided in the connection part, the cover and the lever, and can be detached and attached between the connection part and the cover. Since the extension pipe of the floor brush having a rotating brush and the floor pipe without the rotating brush can be connected in common with one kind of handle pipe.

For this reason, not only can the manufacturing cost of the metal mold | die shaping a handle pipe be 1/2, but the cost of a handle pipe can be reduced, and inventory control and production management can be simplified.

Claims (10)

In the vacuum cleaner comprising a cleaning base, a lake, a handle pipe, an extension pipe, and a floor brush provided with a rotary brush on the suction port, a retainer holding a bearing part of the rotary brush having a blade in the floor brush and wheels on both sides of the blade. An electric vacuum cleaner, comprising: a holding portion for holding a bearing portion of a rotating brush. In the vacuum cleaner comprising a cleaning main body, a hose, a handle pipe, an extension pipe, and a floor brush provided with a rotary brush on the suction port, the height in the vertical direction of the + -shaped bearing part provided in the rotary brush is 10% or more shorter than the length in the left and right directions. A vacuum cleaner comprising the same. An electric vacuum cleaner comprising a cleaning main body, a hose, a handle pipe, an extension pipe, and a floor brush having a suction port, a front wheel, and a rear wheel on the bottom surface, wherein the floor brush protrudes from the bottom surface of the rear wheel close to the rear wheel in front of the rear wheel of the floor brush. A vacuum cleaner comprising a convex portion lower than the length. An electric vacuum cleaner comprising a cleaning brush, a hose, a handle pipe, an extension pipe, and a floor brush provided with a spatula attached to an opening hole provided on the front surface thereof, the alternating portion of the male and the ablation portions alternately. An electric vacuum cleaner comprising: an elastic material provided and provided with slits facing upwards from a lower end of each of the central parts of the drooping part. The vacuum cleaner according to claim 4, wherein a spatula is provided in which a rectangular member made of an elastic material is alternately arranged in front of and behind the spatula. 5. The slit of octagonal shape is provided at predetermined intervals in the vertical direction of the elongated elastic member instead of the spatula, and the elastic pieces having a trapezoidal cross section and the elastic pieces having an inverted trapezoidal cross section are alternately arranged. A vacuum cleaner comprising a spatula formed by forming. 7. The vacuum cleaner according to claim 6, wherein an elastic piece having an inverted trapezoidal cross section is formed thinner than an elastic piece having a trapezoidal cross section. A vacuum cleaner comprising a cleaning pipe, a hose, an extension pipe, and a handle part and a handle pipe and a floor brush having a connection part of the hose and the extension pipe, wherein the handle part of the handle pipe is formed in a loop shape and at the same time the hose connection part An electric vacuum cleaner, characterized in that the angle formed by the line passing through the center portion and the intersection line of the handle portion is set within 10 °. A vacuum cleaner comprising a cleaning main body, a hose, an extension pipe, and a handle part having a handle pipe and a floor brush having a connection part of the hose and the extension pipe, wherein the handle pipe of the handle pipe is formed in a loop shape and the handle pipe is formed in the main body. And a combination of three parts of the hose connection part and the cover part, wherein the three parts intersecting at one place are set to be substantially parallel to a line passing through the center of the extension pipe connection part provided in the main body. A vacuum cleaner comprising a cleaning main body, a hose, an extension pipe, and a handle and a handle pipe and a floor brush having a connection portion of the hose and the extension pipe, wherein the connection portion of the extension pipe is inclined inwardly from the opening hole to the inside. It is provided so that it can be detached and attached between the reduced-formed connection part, the window hole provided in the upper wall of the said connection part, the cover which covers the upper surface of the said connection part, and the upper wall and the cover of the said connection part, and a shaft is fixed so that rotational movement is possible, And a handle pipe having a lever protruding from the window hole into the connecting portion, the handle pipe having a push button partially protruding from the cover.