JP5565092B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to an electric vacuum cleaner, and more particularly to an attachment structure for detachably attaching a hose, a pipe or the like to the main body of the vacuum cleaner when the electric vacuum cleaner is stored.

  There is known a mounting structure in which a hose, a pipe, and the like are engaged and attached to a vacuum cleaner main body in a stand state when a vacuum cleaner is housed (see, for example, Patent Document 1). This conventional mounting structure includes a fixture provided on the bottom surface of the vacuum cleaner main body and a hook portion provided on any one of a hose, an extension pipe, and a floor suction tool and hooked on the fixture.

Japanese Patent No. 3044862

However, the conventional vacuum cleaner mounting structure has the following problems.
(1) Since the position of the fixture provided on the bottom surface of the vacuum cleaner main body is difficult to understand, it takes time to hook the hook such as a hose or pipe on the fixture.
(2) The fixing tool is mounted from the outer bottom surface side of the cleaner body (positioned by engaging the engaging portion provided on the rear part of the fixing tool with the engaging piece provided on the outer bottom surface of the cleaner body). After that, since the fixing tool is fixed from the inside of the cleaner body with screws or scissors, that is, the structure is attached from both the inside and outside of the cleaner body, the mounting of the fixing tool is troublesome.
(3) Since the fixture is L-shaped in a side view, the durability against bending stress when the hook is hooked is low.

  In view of the above problems, the present invention has good visibility when an engagement piece provided on a hose, a pipe, or the like is inserted into a fixture on the cleaner body side, and the fixture can be easily attached. An object is to provide a vacuum cleaner.

An electric vacuum cleaner according to the present invention includes a fixture that is fixed to the bottom surface of the vacuum cleaner body, and an engagement piece that is provided on any one of a hose, an extension pipe, and a floor suction tool and engages the fixture. In the vacuum cleaner, the fixture has a rectangular box part that is a separate part from the lower case of the vacuum cleaner body and that engages with the engagement piece, and is provided in the lower case on the inner bottom surface of the lower case. A box receiving portion having an opening and a guide for fitting the fixture is provided, and the fixing device has four sides of the box portion fitted into the guide of the box receiving portion from the inside of the lower case. It is the structure fixed from the inside of this.

As described above, the fixture is a separate component from the lower case of the vacuum cleaner body, and is configured to be fitted from the inside of the lower case to the opening provided in the lower case and fixed from the inside of the lower case. Therefore, when inserting the engaging piece provided on the hose, extension pipe, or floor suction tool into the fixture of the vacuum cleaner main body in the stand state, the visibility is good and the fixture There exists an effect that the vacuum cleaner which can be attached easily is realizable.

It is an external appearance perspective view of the vacuum cleaner 100 in Embodiment 1 of this invention. 2 is a top view of the cleaner body 1. FIG. It is AA sectional drawing of FIG. It is a disassembled perspective view of the cleaner body 1 which shows the state which removed the cyclone separation unit 20. FIG. It is the external appearance perspective view of the cleaner body 1 and the extension pipe part before attachment of the extension pipe part. FIG. 3 is a cross-sectional view showing a housed state of the cleaner body 1. It is an enlarged view of the B section of FIG. 2 is a bottom view of the cleaner body 1. FIG. It is an enlarged view of the C section of FIG. FIG. 2 is an external perspective view of the lower case 12 and the fixture 40 of the cleaner body 1 before the fixture 40 is attached. 3 is an external perspective view of the lower case 12 and the fixture 40 of the cleaner body 1 when the fixture 40 is attached. FIG. It is an enlarged view of the D section of FIG. 3 is an external perspective view of a fixture 40. FIG.

  Hereinafter, the vacuum cleaner concerning the present invention is explained based on a drawing. Here, although the vacuum cleaner which comprises a cyclone separation type dust collector is demonstrated as an example, it cannot be overemphasized that this invention is not limited to this. For example, the present invention is similarly applied to a vacuum cleaner having a vertical cylindrical cyclone dust collection unit or a vacuum cleaner having a paper pack type dust collection unit even in the same cyclone separation type dust collector. It is something that can be done.

Embodiment 1 FIG.
1 is an external perspective view showing an electric vacuum cleaner 100 according to Embodiment 1 of the present invention, FIG. 2 is a top view of the vacuum cleaner main body 1, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, and FIG. It is a disassembled perspective view of the cleaner body 1 which shows the state which removed.
This electric vacuum cleaner 100 has a vacuum cleaner main body 1 and a hand operating unit 3 that is rotatably connected to the suction port 11 of the vacuum cleaner main body 1 and is detachably connected to the other end. A flexible hose 2, an extension pipe 4 that is detachably connected to the hose 2, and a floor suction tool 5 that is detachably connected to the extension pipe 4 and sucks dust existing on a floor surface, a carpet, and the like. It has. The extension pipe 4 may be either a pipe expansion / contraction system that expands / contracts the pipe or a pipe joint system that connects a plurality of pipes.

The vacuum cleaner main body 1 includes a main body case 10 including an electric blower 30 and a cyclone separation unit 20 (referred to as a main part of a cyclone separation type dust collector) that is detachably mounted on the main body case 10. I have.
The main body case 10 is composed of a lower case 12 and an upper case 13, and can be freely routed by holding the hand operating part 3 by a front wheel 14 and a rear wheel 15. A suction port 11 to which a connection port portion at one end of the hose 2 is connected and a main body handle portion 16 that can carry the cleaner main body 1 are provided at the front portion of the main body case 10 that is in front of the cleaner body 1 in the moving direction. Yes.

The cyclone separation unit 20 is detachably attached to the main body case 10. Further, the cyclone separation unit 20 includes a primary cyclone separation unit 21 and a secondary cyclone separation unit 22 that are integrally arranged in parallel, and the case is formed to be separable into four parts 23 to 26. . The cyclone separation unit 20 has a dust collecting section 26 at the fourth stage, which is the final stage, and is attached to the main body case 10 obliquely with the dust collecting section 26 facing downward. .
An inlet 27 for dust-containing air is opened on the side surface of the second stage portion 24 of the primary cyclone separator 21, and the inlet 27 and the suction port 11 are provided on one side in the width direction of the cleaner body 1. The air duct 28 is closely connected.

  The primary cyclone separator 21 and the secondary cyclone separator 22 will not be described in detail here, but both generate a swirling airflow by the suction force of the electric blower 30 to generate specific gravity from the dust-containing air. Centrifugation into large dust, dust having a lower specific gravity than this, and air is performed to separate and collect these dust / dust.

Dust-containing air is sucked in from the floor suction tool 5, enters the suction port 11 of the cleaner body 1 through the extension pipe 4 and the hose 2, passes through the air duct 28, and then passes through the air inlet 28 to the primary cyclone separation unit 21. Flow into. The dust-containing air is separated and collected according to the cyclone principle while passing from the primary cyclone separator 21 to the secondary cyclone separator 22.
The air that has passed through the cyclone separation unit 20 passes through a discharge pipe 29a provided in the first stage portion 23 of the secondary cyclone separation unit 22 and is discharged from a discharge pipe 29b on the main body case 10 that is closely connected to the discharge pipe 29a. It is guided to the filter device 31 and sucked by the electric blower 30 via the filter device 31. For this reason, fine dust and dust that could not be separated by the cyclone separation unit 20 are removed by the filter device 31, and the air purified thereby is provided on the side of the cleaner body opposite to the air duct 28. The discharged exhaust port 32 is discharged to the outside. A plurality of filter devices 31 may be provided. For example, the filter device 31 can be provided on each of the suction side and the blower side (discharge side) of the electric blower 30. Accordingly, since the intake air and the exhaust gas are dust-removed twice, the exhaust gas of the vacuum cleaner 100 can be further purified.

Next, the part which concerns on accommodation of the vacuum cleaner 100 which is the principal part of this invention is demonstrated with reference to FIGS.
FIG. 5 is an external perspective view showing the vacuum cleaner main body 1 in a stand state and a portion of the extension pipe 4 before engaging with the main body 1 when stored, and the hose 2 is not shown for the sake of clarity. . 6 is a cross-sectional view showing a state in which the extension pipe 4 is attached to the cleaner body 1 (a state in which the cleaner body 1 is stored), FIG. 7 is an enlarged view of a portion B in FIG. FIG. 9 is an enlarged view of a portion C in FIG. 8, FIG. 10 is an external perspective view of the lower case 12 and the fixture 40 before the fixture 40 is attached, and FIG. 11 is an external perspective view of the lower case 12 and the fixture 40 at the time, FIG. 12 is an enlarged view of a portion D of FIG. 11, and FIG. 13 is an external perspective view of the fixture 40.

  When the electric vacuum cleaner 100 is stored, the vacuum cleaner main body 1 is raised by holding the main body handle portion 16, and the vacuum cleaner main body 1 is put into a stand state as shown in FIG. Since the vacuum cleaner main body 1 is provided with a pair of convex portions 18 and 19 (see FIG. 2) protruding rearward from the upper case and a pair of convex portions 17 provided on the rear surface of the main body, The vacuum cleaner body 1 can be stably set up by the four-point support of the convex portion 19 and the pair of convex portions 17. In the stand state, the bottom surface of the cleaner body 1 facing the floor surface is held so as to be in a state of being substantially perpendicular to the floor surface or slightly tilted forward (the bottom surface is inclined upward). The rear wheel 15 is formed by two-color molding (for example, the inner wheel part is ABS resin, the outer wheel part is silicone rubber, or the inner wheel part is PP resin, and the outer wheel part is elastomer). For this reason, it becomes a mark of the size of the vacuum cleaner main body 1 by color coding, and since it is less likely to come into contact with the vacuum cleaner main body 1 when an engagement piece provided on a hose, an extension pipe or the like is inserted into the fixture, the scratches There is an effect that it is hard to stick.

  A hook-shaped fixture 40 is attached and fixed on the center line of the lower case 12 forming the bottom surface (center line in the stand state of FIG. 8). On the other hand, the extension pipe 4 is provided with an engagement piece 41 that engages with the fixture 40 as a single unit or as a separate body. The engaging piece 41 is formed downward (reverse L-shaped) so that the L-shaped insertion portion 41 a faces the floor suction tool 5. Therefore, the extension tube 4 can be attached to the vacuum cleaner main body 1 in the stand state by inserting the insertion portion 41a of the engagement piece 41 into the fixture 40 from above when storing, and the vacuum cleaner can be attached in that state. 100 can be stored. In addition, although the engagement piece 41 is provided in the extension pipe 4 in this example, it can also be provided in the floor suction tool 5 or the hose 2, and any one of the extension pipe 4, the floor suction tool 5, and the hose 2. Should be provided.

  The fixture 40 is formed as a separate part from the lower case 12, and has a rectangular box portion 40a as shown in FIG. 13, and its longitudinal section is formed in an L shape. In addition, a mounting portion 40b having a screw insertion hole 40c is formed in the square box portion 40a, and a lead wire pressing portion 40d made of an L-shaped rib is formed in one mounting portion 40b. The lead wire holding part 40d can fix the lead wire 42 connected to the electric blower 30 and the substrate simultaneously with the attachment of the fixture 40.

  On the other hand, on the outer bottom surface of the lower case 12, a guide groove 12a for guiding the insertion of the engagement piece 41 is formed as shown in FIG. As shown in FIG. 10, a box receiving portion 12b having an opening for fitting a rectangular box portion 40a is formed on the inner bottom surface of the lower case 12, and a mounting portion having a screw hole 12c in the vicinity thereof is formed. A base 12d is formed. Therefore, when the box portion 40a of the fixture 40 is fitted into the box receiving portion 12b and the mounting portion 40b is fastened and fixed to the mounting base 12d with screws, the inside of the box portion 40a communicates with the guide groove portion 12a as shown in FIG. It becomes. For this reason, the engagement piece 41 provided in any of the extension pipe 4, the floor suction tool 5 and the hose 2 can be smoothly inserted along the guide groove portion 12a. It can be inserted and engaged in the portion 40a. Moreover, the box receiving part 12b should just have an opening part at least.

  Further, as shown in FIGS. 8 and 9, at least two front wheels 14 are rotatably provided on the extension line of the guide groove portion 12a by 360 degrees. The front wheel 14 is rotatably mounted on a circular caster 14a having a curved surface. Thereby, the extension pipe 4 can be smoothly inserted along the guide groove portion 12 a while being in contact with the front wheel 14.

  Since the vacuum cleaner 10 of this Embodiment is comprised as mentioned above, there exists an effect as shown below.

(1) Since the fixing tool 40 is fixed only from the inside of the lower case 12, the mounting work of the solid tool 40 is easy. Moreover, even if the fixing means (screw) of the fixing tool 40 is removed, it can be prevented from falling off.

(2) Since the fixture 40 is a separate part from the lower case 12 and can be made into a different color from the color of the lower case 12, such as red, for example, the position of the fixture 40 is easy to understand. The visibility at the time of insertion of the engagement piece 41 is good.

(3) Since the fixing part 40 has a rectangular box part 40a in which the engaging piece 41 is inserted, the strength is high and the durability is excellent. Further, by configuring the fixture 40 with a material having higher strength than the lower case 12, such as metal or FRP, higher strength and durability can be provided. Further, wear of the fixture 40 can be reduced.

(4) When the extension pipe 4 having a different size of the engagement piece 41 is used in combination with the cleaner body 1, it can be handled by changing the shape of only the fixture 40, which is advantageous in terms of compatibility and reduction of mold remodeling costs. It is.

(5) By forming the guide groove 12 a that guides the engagement piece 41 to the fixture 40 on the outer bottom surface of the lower case 12, the engagement piece 41 can be smoothly inserted.

(6) When the extension pipe 4 or the like is attached to the cleaner body 1, the outermost part of the cleaner body 1 (rear wheel 15) is formed by two-color molding so that the size of the cleaner body 1 is increased. It becomes easy to attach the extension pipe 4 or the like to the cleaner body 1.

(7) Since at least two front wheels 14 are rotatably provided on the extension line of the guide groove 12a, the extension tube 4 can be smoothly inserted while being in contact with the front wheel 14, so that the extension tube 4 and the like can be easily mounted during storage. Can be done.

(8) Since the fixture 40 has the lead wire pressing portion 40d, fixing the lead wire of the electric blower 30 and the control board fixes the lead wire simultaneously with the attachment of the fixture 40 without requiring separate parts. be able to.

  DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body, 2 hose, 3 hand operation part, 4 extension pipe, 5 floor suction tool, 10 main body case, 11 suction inlet, 12 lower case, 12a guide groove part, 12b box receiving part (opening part), 12c screw Hole, 12d Mounting base, 13 Upper case, 14 Front wheel, 15 Rear wheel, 16 Main body handle part, 17 Convex part, 18 Convex part, 19 Convex part, 20 Cyclone separation unit, 21 Primary cyclone separation part, 22 Secondary cyclone separation Part, 26 dust collecting part, 27 inlet, 28 air duct, 29a discharge pipe, 29b discharge pipe, 30 electric blower, 31 filter device, 32 exhaust port, 40 fixing tool, 40a box part, 40b mounting part, 40c screw insertion Hole, 40d Lead wire holding part, 41 Engagement piece, 42 Lead wire, 100 Vacuum cleaner.

Claims (7)

In a vacuum cleaner having a fixture fixed to the bottom surface of the vacuum cleaner body, and an engagement piece that is provided on any one of a hose, an extension pipe, and a floor suction tool, and engages with the fixture.
The fixture has a rectangular box portion that is a separate part from the lower case of the vacuum cleaner body and that engages the engagement piece.
On the inner bottom surface of the lower case, there is provided a box receiving portion having an opening provided in the lower case and a guide for fitting the fixing tool,
The electric vacuum cleaner according to claim 4, wherein the fixing member is configured to be fitted from the inner side of the lower case with four sides of the box part fitted into the guide of the box receiving part .   The vacuum cleaner according to claim 1, wherein the fixture and the lower case are formed in different colors.   The vacuum cleaner according to claim 1 or 2, wherein the fixture is made of a material having a higher strength than the lower case.   The vacuum cleaner according to any one of claims 1 to 3, wherein a guide groove portion that guides the engaging piece to the fixture is formed on an outer bottom surface of the lower case.   The vacuum cleaner according to claim 4, wherein the vacuum cleaner body includes a front wheel, and at least two front wheels are rotatably provided on an extension line of the guide groove portion.   The vacuum cleaner according to any one of claims 1 to 5, wherein the vacuum cleaner body includes a rear wheel, and the rear wheel is formed by two-color molding.   The vacuum cleaner according to claim 1, wherein the fixture has a lead wire pressing portion.

Images