JP7120935B2 - vacuum cleaner - Google Patents

Description

The present invention relates to a vacuum cleaner.

In recent years, there has been a demand for vacuum cleaners that are compact and lightweight with good operability. Methods for reducing the size and weight include adopting lightweight materials, reducing the number of parts, and using thinner resin.
Patent Document 1 discloses an electric vacuum cleaner having an operation display by a light-emitting element on the upper surface of the main body, and a light-emitting portion provided with a light-emitting member molded of a transparent resin.

JP-A-2005-40448

In the structure described in Patent Document 1, a transparent resin light-emitting member is provided above the light-emitting element, and a lens holder is provided to support the light-emitting member from the inside. disadvantageous. In addition, the number of assembly steps increases and the cost increases.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a vacuum cleaner that has an operation display with a light-emitting element on its main body, yet does not increase the number of resin-molded parts and realizes an operation display with good visibility. aim.

The present invention provides a vacuum cleaner comprising an electric blower and a control board for controlling the electric blower, wherein the control board has a light-emitting element for informing a user of an operation mode and maintenance, wherein the light-emitting element has a hole above the light-emitting element. and an LED sheet affixed to the hole so that the display window overlaps with the hole, and the LED sheet is inserted into a recess formed in the upper case by attaching the double-sided tape to the LED sheet. The upper case has a cylindrical portion that extends from the hole to the vicinity of the light emitting element, and as the cylindrical portion approaches the light emitting element, the opening area increases and the punching required for resin molding increases. It is formed to have a tapered shape of 3 degrees or more instead of a taper, and the light emitting element is positioned below the cylindrical portion outside the cylindrical portion, and the light emitted from the light emitting element causes the cylindrical portion to taper. The inner peripheral surface is characterized by being illuminated by the color emitted by the light emitting element.

Advantageous Effects of Invention According to the present invention, it is possible to provide a vacuum cleaner that has a small number of parts, is lightweight, and has a highly visible display section.

It is an appearance perspective view showing the whole electric vacuum cleaner concerning this embodiment. It is a partially exploded perspective view showing a cleaner body. Fig. 3 is a perspective view showing a state in which the dust case cover is opened in the main body of the cleaner; It is a front view of a cleaner body. It is a rear view of a cleaner body. It is a top view of an upper case. FIG. 6 is an enlarged view of the vicinity of the display window section in the AA line cross section of FIG. 5; It is a longitudinal cross-sectional view of a cleaner body. It is a figure which shows the accommodation state of a cleaner main body.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings as appropriate, but the present embodiments are not limited to the following contents, and can be implemented with appropriate modifications within the scope of the present invention.

FIG. 1 is an external perspective view showing the entire vacuum cleaner according to this embodiment.
As shown in FIG. 1, the electric vacuum cleaner 1 includes a cleaner main body 2, a hose 3, an operation tube 4, an extension tube 5, a suction tool 6, and the like.

One end of the hose 3 is connected to the cleaner main body 2 and the other end is connected to one end of the operation pipe 4 . The operation tube 4 has a grip 4a having a hand operation switch and the like. The extension tube 5 is configured to be extendable by an outer tube 5a and an inner tube 5b.

FIG. 2 is a partially exploded perspective view showing the main body of the cleaner.
As shown in FIG. 2, the cleaner body 2 is of a so-called paper pack type, and includes a lower case 11, an upper case 12, and a dust case cover 13. As shown in FIG.

The lower case 11 constitutes the outer shell (appearance) of the lower portion of the cleaner body 2, and is made of a synthetic resin material (not fiber reinforced) such as PP (Polypropylene) resin. In addition, the lower case 11 has a recess 11a with a substantially rectangular upper opening, an electric blower 15 that generates a suction force, a case 16 that houses the electric blower 15, a cord reel 17, and an electric blower 15 (see FIG. 8). ) and the like are housed therein. Further, the lower case 11 has a dust collector 19 that stores dust collected by the suction force of the electric blower 15 .

In the lower case 11, the electric blower 15, the cord reel 17, and the control board 18 are arranged on the rear side of the approximate center in the front-rear direction, and the dust collector 19 is arranged on the front side of the approximate center in the front-rear direction. The electric blower 15 and the cord reel 17 are arranged in the horizontal direction, and the electric blower 15 is arranged on the right side and the cord reel 17 is arranged on the left side. The control board 18 is arranged above the case 16 that houses the electric blower 15 . An annular lid packing 19 a is attached to the upper edge of the dust collecting portion 19 . Note that FIG. 3 shows a state in which an unused paper pack 22 is accommodated.

The upper case 12 has a shape that covers the entire upper side of the electric blower 15, the cord reel 17 and the control board 18, and is configured to be fixed to the lower case 11. The upper case 12 is made of a synthetic resin material (fiber reinforced not). A winding button 23 is provided on the top of the upper case 12 to be pressed when the power cord 17b of the cord reel 17 is wound. The winding button 23 is biased upward by a spring (not shown).

The upper case 12 also has a plug outlet 12e from which a connection plug 17c (see FIG. 5) is drawn.

The dust case cover 13 constitutes a part of the outer shell (appearance) of the upper part of the cleaner body 2 and mainly opens and closes the upper part of the dust collection part 19 . The dust case cover 13 is made of a synthetic resin material (not reinforced with fiber) such as ABS resin. Further, the dust case cover 13 has an outer surface 13a which is formed in an upwardly convex shape without irregularities.

FIG. 3 is a perspective view showing a state in which the dust case cover is opened in the main body of the cleaner.
As shown in FIG. 3, the rear surface of the dust case cover 13 is formed with ribs 13b protruding along the lid packing 19a of the dust collecting portion 19. As shown in FIG. A lock member 13c is provided on the rear surface of the dust case cover 13 so as to be engaged with and locked to the front end of the hose port 21. As shown in FIG.

A hinge portion 12b that rotatably supports the dust case cover 13 is formed on the upper portion of the upper case 12. As shown in FIG. The dust case cover 13 is configured to be opened vertically upward.

The dust collector 19 communicates with a hose connection port 21b formed in the hose port 21, and communicates with a space in which the electric blower 15 (see FIG. 7) is accommodated via a filter 19b.

The hose port 21 has a handle portion 21a that is gripped when carrying the main body and a pipe hook that engages a hook portion 5c (see FIG. 9) provided on the outer pipe 5a of the extension pipe 5 when storing the cleaner main body. A portion 21c is integrally formed.

FIG. 4 is a front view of the main body of the cleaner.
As shown in FIG. 4, the pipe hook portion 21c is arranged in the center of the hose port 21 and is composed of a receiving portion 21c1, guide ribs 21c2 and 21c2, pressing ribs 21c3 and 21c3, and a bottom rib 21c4. It has an inclination in the direction crossing the axis of the hose connection port 21b on the front side. Further, a screw insertion hole 21d for screwing to the lower case 11 is formed. A handle cover 24 fixed to the handle portion 21a is provided around the outer periphery of the handle portion 21a in order to enhance the ease of gripping the handle and the design. By arranging the pipe hook portion 21c in the center in this way, the accessory can be attached to the center of the main body in the stored state, so that the center of gravity in the stored state is not biased to the left or right, thereby improving the stability. can be done.

In this embodiment, a paper pack type vacuum cleaner will be described as an example, but the present invention can also be applied to a cyclone vacuum cleaner.

FIG. 5 is a rear view of the main body of the cleaner.
As shown in FIG. 5, large-diameter wheels 20a, 20a are rotatably attached to the rear left and right side surfaces of the lower case 11. As shown in FIG. A wheel 20b is attached to the lower surface of the lower case 11 so that the direction can be changed.

An exhaust port 11a is formed on the rear surface of the lower case 11, and has a plurality of slit-shaped holes 11a1, which are arranged parallel to each other. Further, the exhaust port 11a1 is formed as a through hole having an angle of 10 degrees from the horizontal plane toward the rear upward direction so that the exhaust is discharged upward. However, the angle is not limited to this.

FIG. 6 is a plan view of the upper case.
As shown in FIG. 6, the upper case 12 is formed with screw insertion holes 12c for screwing to the lower case 11 at both left and right ends of the front end and approximately the center thereof and at approximately the center of the rear end.

An LED sheet 14 having display windows 14a for informing the user of the operation mode and maintenance is attached to the upper case 12 with an adhesive such as double-sided tape. The display window portions 14a, 14a are elliptical and made transparent or by means of medium printing or the like so that light can pass therethrough. By adopting such a configuration, the display of the LED can be visually recognized without arranging a transparent resin component in the display section, and the weight and cost can be reduced by reducing the number of components.

Furthermore, a cover member 25 curved over the entire width of the upper case 12 is attached to a substantially central portion of the upper case 12 . Moreover, the cover member 25 is pasted with adhesive such as double-sided tape over the entire width of the cover member 25 to enhance the design.

FIG. 7 is an enlarged view of the vicinity of the display window section in the AA line cross section of FIG.
As shown in FIG. 7, the control board 18 has light emitting elements 18a, 18a for informing the user of operation modes and maintenance. Above them, tapered tubular portions 12a, 12a whose opening areas gradually increase as they approach the light emitting elements 18a, 18a from the upper surface of the upper case 12 extend to the vicinity of the light emitting elements 18a, 18a. The LED sheet 14 is attached to the hole portions 12a2, 12a2 on the upper surface of the upper case 12 so that the display window portions 14a, 14a overlap each other. Here, the taper of the cylindrical portions 12a, 12a does not mean a taper necessary for resin molding, but a tapered shape intentionally provided at 3 degrees or more. As a result, the light emitted from the light emitting elements 18a, 18a also illuminates the inner peripheral surfaces 12a1, 12a1 of the cylindrical portions 12a, 12a with the colors emitted by the light emitting elements 18a, 18a. The light reflected on 14a becomes darker and clearer, and the visibility from various distances and angles can be improved.

The cover member 25 is arranged between the dust case cover 13 and the outer surface 12d of the upper case, and is fixed to the upper case 12 so that both are on the same surface. As described above, the dust case cover 13 is rotatably supported by the hinge portion 12, and the rear end portion of the dust case cover 13 rotates along the track R, so a space must be secured inside the track R. If a space is simply opened, the gap L between the dust case cover 13 and the upper case outer surface 12d becomes large, impairing the design. The cover member 25 is provided to achieve both of them, and it becomes possible to minimize the gap L while securing the track R.

FIG. 8 is a longitudinal sectional view of the main body of the cleaner.
As shown in FIG. 8, the front side of the electric blower 15 is mounted on the holding rib 11c of the lower case via an annular vibration-isolating rubber 15a. It is sealed so that the dust collection chamber 19 communicates with it. Further, the rear side is held by a concave portion 16a of a case 16 made of synthetic resin via an anti-vibration rubber 15b. The case 16 is fitted and fixed inside the lower case 11 . As a result, the vibration of the electric blower 15, which is a source of noise, is damped by the front and rear anti-vibration rubbers, and is prevented from being transmitted directly to the outer shell of the main body.

A plurality of inclined ribs 11b that are lowered forward are arranged on the lower rear side of the case 16 . A sound absorbing material 30 for reducing noise is provided on the lower side of the case 16, and a part of the sound absorbing material 30 is placed so as to ride on the inclined rib 11b. As shown in FIG. 5, the lower case 11 has an exhaust port 11a on the rear surface, through which the air exhausted from the electric blower 15 is discharged outside the fuselage. Noise can be reduced by obstructing the flow of air from between the cases 11 directly to the exhaust port 11a by the inclined ribs 11b and the sound absorbing material 30 and detouring the inside of the main body.

FIG. 9 is a diagram showing the stored state of the main body.
As shown in FIG. 9, the vacuum cleaner main body 2 is erected with the accessories connected to the vacuum cleaner 1, and the hook portion 5c is engaged with 21c so that the accessories can be stored in a self-supporting state. Become. In addition, since the receiving portion 21c2 (see FIG. 4) is inclined, the hook portion 5c can be easily hooked, and the height in the stored state can be reduced, thereby improving operability and compact storage. be able to.

The present invention is not limited to the above-described embodiments, and can be modified as appropriate without changing the scope of the present invention. For example, in the present embodiment, the case where the cleaner body 2 is provided with the cord reel 17 has been described as an example.

Further, in the present embodiment, the case where the light emitting element 18a is integrated with the control board 18 has been described as an example. good too.

Further, in the present embodiment, the case where the hook portion 5c is formed on the outer pipe 5a is described as an example, but it may be formed on the inner pipe 5b or the mouthpiece 6. FIG.

1 Electric Vacuum Cleaner 2 Vacuum Cleaner Body 11 Lower Case 12 Upper Case 12a Cylinder Part 13 Dust Case Cover (Dust Collection Lid)
14 LED sheet 14a Display window 15 Electric blower 15a Anti-vibration rubber 15b Anti-vibration rubber 16 Case 17 Cord reel 18 Control board 18a Light-emitting element 19 Dust collector 20a Wheel

Claims (1)

A vacuum cleaner comprising an electric blower and a control board for controlling the electric blower, wherein the control board has a light-emitting element for informing a user of an operation mode and maintenance,
Above the light emitting element, an upper case having a hole and an LED sheet attached so that the display window overlaps the hole,
The LED sheet is attached to a recess formed in the upper case with double-sided tape,
the upper case has a cylindrical portion extending from the hole to the vicinity of the light emitting element,
The cylindrical portion is formed so that the opening area widens as it approaches the light emitting element and has a taper shape of 3 degrees or more, not a draft taper required for resin molding,
The light emitting element is positioned below the cylindrical portion outside the cylindrical portion,
An electric vacuum cleaner, wherein the light emitted from the light emitting element illuminates the inner peripheral surface of the cylindrical portion in a color emitted by the light emitting element.

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