JP7032335B2 - Vacuum cleaner - Google Patents

Description

The present invention relates to a vacuum cleaner.

In recent years, small and lightweight vacuum cleaners with good operability have been desired, and as a method for reducing the size and weight, methods such as adoption of lightweight materials, reduction of the number of parts, and thinning of resin can be considered.
In the vacuum cleaner described in Patent Document 1, a vacuum cleaner in which a front cover and a handle are integrally molded to reduce the size and weight and eliminate the number of parts is described.

Japanese Unexamined Patent Publication No. 2004-41540

In the structure described in Patent Document 1, the hose connection port, the pipe hook portion, and the handle are composed of at least two separate parts. The hose connection port may be worn due to repeated attachment / detachment of the hose, and the pipe hook portion may be worn due to repeated attachment / detachment of the extension pipe. In addition, although the handle is an important component for safety, it may deteriorate over time due to long-term use. Therefore, when repairing by after service, each part must be replaced individually, which increases the burden of repair costs on the user.

Therefore, an object of the present invention is to provide a vacuum cleaner with improved after-service and safety.

The present invention includes a vacuum cleaner main body provided with an electric blower that generates suction force, a handle portion attached to the vacuum cleaner main body for holding the vacuum cleaner main body, and a hose connection port portion for connecting a hose. The vacuum cleaner body has a hose port formed of an integral resin molded product with a pipe hook portion that enables the extension pipe to be engaged during storage, and the vacuum cleaner body has an outer shell at the lower part of the vacuum cleaner body. A lower case to be configured and a dust case cover to form a part of the outer shell of the upper part of the vacuum cleaner main body are provided, and the hose port is fixed to the lower case with a screw and the back surface of the dust case cover. It is characterized in that it is locked by engaging with a lock member provided on the hose .

According to the present invention, a hose connection port, a handle, and a pipe hook are integrally provided so that a hose connection port, a handle, and a pipe hook can be integrally provided so that a frequently worn part and a handle that is important for safety can be repaired by replacing one part. By replacing the hose connection port in after-sales service when the mouth or pipe hook is worn, the hose connection port and pipe hook can be replaced by replacing one part, and safety is also achieved. The handle part, which is important for the above, can be replaced at the same time. Further, by integrating the hose connection port portion, the handle and the pipe hook portion, it is possible to reduce the number of component components and provide an electric vacuum cleaner with improved productivity.

It is an external perspective view which shows the whole of the vacuum cleaner which concerns on this embodiment. It is a partially disassembled perspective view which shows the vacuum cleaner main body. It is a perspective view which shows the state which the dust case cover is opened in the vacuum cleaner main body. It is a front view of a vacuum cleaner body. It is a rear view of a vacuum cleaner body. It is a top view of the upper case. FIG. 6 is an enlarged view of the vicinity of the display window portion in the cross section taken along the line AA of FIG. It is a vertical sectional view of a vacuum cleaner body. It is a figure which shows the storage state of a vacuum cleaner main body.

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

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

One end of the hose 3 is connected to the vacuum cleaner main body 2, and the other end is connected to one end of the operation pipe 4. The operation tube 4 includes a grip 4a provided with a hand operation switch and the like. The extension tube 5 is configured to be expandable and contractible by the outer tube 5a and the inner tube 5b.

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

The lower case 11 constitutes the outer shell (appearance) of the lower part of the vacuum cleaner main body 2, and is made of a synthetic resin material (not reinforced with fibers) such as PP (Polypropylene) resin. Further, the lower case 11 has a recess 11a whose upper portion is open in a substantially rectangular shape, and has an electric blower 15 for generating suction force, a case 16 for accommodating the electric blower 15, a cord reel 17, and an electric blower 15 (see FIG. 8). ) Is housed in the control board 18 and the like for controlling. Further, the lower case 11 has a dust collecting unit 19 for accommodating dust collected by the suction force of the electric blower 15.

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

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 fixed to the lower case 11, and is made of a synthetic resin material (fiber reinforced) such as PP (Polypropylene) resin. Is not formed). Further, a take-up button 23 that is pressed when the power cord 17b of the cord reel 17 is taken up is provided on the upper portion of the upper case 12. The take-up button 23 is urged upward by a spring (not shown).

Further, the upper case 12 has a plug outlet 12e from which the connection plug 17c (see FIG. 5) is pulled out.

The dust case cover 13 constitutes a part of the outer shell (appearance) of the upper part of the vacuum cleaner main body 2, and mainly opens and closes the upper part of the dust collecting portion 19. Further, the dust case cover 13 is made of a material made of synthetic resin (not reinforced with fibers) such as ABS resin. Further, the dust case cover 13 is formed so as to be convex upward by a surface having no unevenness on the outer surface 13a.

FIG. 3 is a perspective view showing a state in which the dust case cover is opened in the vacuum cleaner main body.
As shown in FIG. 3, on the back surface of the dust case cover 13, ribs 13b protruding along the lid packing 19a of the dust collecting portion 19 are formed. Further, on the back surface of the dust case cover 13, a lock member 13c that engages with and is locked to the front end of the hose opening 21 is provided.

A hinge portion 12b that rotatably supports the dust case cover 13 is formed on the upper portion of the upper case 12. The dust case cover 13 is configured to open until it faces upward in the vertical direction.

The dust collecting portion 19 communicates with the hose connecting port portion 21b formed in the hose port 21, and also communicates with the space in which the electric blower 15 (see FIG. 7) is housed via the filter 19b.

The hose port 21 is provided in the handle portion 21a to be gripped when the main body is carried, the hose connection port portion 21b for connecting the hose 3, and the outer pipe 5a of the extension pipe 5 when the vacuum cleaner main body is housed. A pipe hook portion 21c for engaging the hook portion 5c (see FIG. 9) is integrally formed.

FIG. 4 is a front view of the vacuum cleaner main body.
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, a guide rib 21c2, 21c2, a holding rib 21c3, 21c3, and a bottom rib 21c4, and the receiving portion 21c1 is cleaned. It has an inclination in the direction intersecting the axis of the hose connection port 21b in front of the machine body 2. Further, a screw insertion hole 21d for screw fixing to the lower case 11 is formed. A handle cover 24 fixed to the handle portion 21a is provided on the outer periphery of the handle portion 21a in order to improve the grip and design when the handle is gripped. By arranging the pipe hook portion 21c in the center of the vacuum cleaner body in the left-right direction in this way, the accessories 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 biased to the left and right. It is possible to improve the stability.

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

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

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

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

Further, an LED sheet 14 having display window portions 14a and 14a for notifying 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 and 14a have an elliptical shape, and are made to transmit light by transparency or medium printing. With such a configuration, the LED display can be visually recognized without arranging the transparent resin parts on the display unit, and the weight and cost can be reduced by reducing the number of parts.

Further, 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. Further, a scraping sheet 26 for enhancing the design is attached to the cover member 25 over the entire width with an adhesive such as double-sided tape.

FIG. 7 is an enlarged view of the vicinity of the display window portion in the cross section taken along the line AA of FIG.
As shown in FIG. 7, the control board 18 has light emitting elements 18a and 18a for informing the user of the operation mode and maintenance. Further, above the tapered tubular portions 12, 12 whose opening area gradually increases 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 so that the display window portions 14a and 14a overlap with the holes 12a2 and 12a2 on the upper surface of the upper case 12. Here, the taper of the tubular portions 12 and 12 does not mean the punching taper required for resin molding, but is a tapered shape intentionally provided at 3 degrees or more. As a result, the light emitted from the light emitting elements 18a and 18a also illuminates the inner peripheral surfaces 12a1 and 12a1 of the tubular portions 12a and 12a with the colors emitted by the light emitting elements 18a and 18a. The light reflected on the 14a can be seen more deeply and clearly, 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 surface 12d of the upper case, and is fixed to the upper case 12 so as to be on the same surface of both. As described above, the dust case cover 13 is pivotally supported by the hinge portion 12, and the rear end portion of the dust case cover 13 rotates while drawing a track R, so that a space must be secured inside the track R. If the space is simply opened, the gap L between the dust case cover 13 and the outer surface surface 12d of the upper case becomes large, which impairs the design. The cover member 25 is provided to achieve both of them, and it is possible to minimize the gap L while ensuring the track R.

FIG. 8 is a vertical cross-sectional view of the vacuum cleaner body.
As shown in FIG. 8, the electric blower 15 is installed on the holding rib 11c of the lower case on the front side via the annular anti-vibration rubber 15a, and further, the annular rib 11d is used to form the opening 15c of the electric blower 15. The dust collecting chamber 19 is hermetically sealed so as to communicate with each other. Further, the rear side is held by the recess 16a of the case 16 made of synthetic resin via the anti-vibration rubber 15b. The case 16 is fitted and fixed in the lower case 11. As a result, the vibration of the electric blower 15, which is a source of noise, is suppressed by the front and rear vibration damping rubbers to prevent it from directly propagating to the outer shell of the main body.

A plurality of inclined ribs 11b that are lowered toward the front are arranged behind the lower side of the case 16. Further, 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, there is an exhaust port 11a on the back surface of the lower case 11, and the air exhausted from the electric blower 15 is discharged to the outside of the machine body. Noise can be reduced by obstructing the flow of air directly from between the cases 11 to the exhaust port 11a by the inclined ribs 11b and the sound absorbing material 30 and bypassing the inside of the main body.

FIG. 9 is a diagram showing a stored state of the main body.
As shown in FIG. 9, by standing the vacuum cleaner body 2 with the accessories connected to the vacuum cleaner 1 and engaging the hook portion 5c with the 21c, the accessories can be stored in a self-supporting state. Become. Further, since the receiving portion 21c2 (see FIG. 4) is tilted, the hook portion 5c can be easily hooked and the height in the stored state can be lowered, so that the hook portion 5c can be stored compactly while improving the operability. be able to.

As described above, as shown in FIG. 4, the hose port 21 is integrally formed from the handle portion 21a, the hose connection port portion 21b, and the pipe hook portion 21c. With long-term use, deterioration may occur due to wear of the hose connection port 21b due to attachment / detachment of the hose 3 or wear of the pipe hook portion 21c due to attachment / detachment of the hook portion 5c. When the hose port 21 is not integrally molded by the handle portion 21a, the hose connection port 21b, and the pipe hook portion 21c, it is composed of at least two or more parts and is worn when repaired by after service. Only one part is replaced. For example, even if the pipe hook portion 21c is worn and the pipe hook portion 21c is replaced by after service, the similarly worn hose connection port portion 21b and the handle portion 21a that may have deteriorated over time are not replaced. .. However, when the hose port 21 is made of an integral resin molded product with the handle portion 21a, the hose connection port portion 21b, and the pipe hook portion 21c, the other deteriorated parts and worn parts are replaced at the same time by replacing one part. can do. For example, the pipe hook portion 21c is worn, and when the pipe hook portion 21c is replaced in the after service, the entire hose opening 21 is replaced, so that the handle portion 21a that may have deteriorated over time is worn. The hose connection port 21b is also replaced at the same time. Therefore, the user does not need to repair the handle portion 21a, the hose connection port 21b, and the pipe hook portion 21c separately, so that after-service performance and safety can be improved.

Further, since the hose port 21 is integrally formed from the handle portion 21a, the hose connection port portion 21b, and the pipe hook portion 21c, the hose port 21 is formed by the handle portion 21a, the hose connection port portion 21b, and the pipe hook portion 21c. Compared with the case where it is not integrally molded, the number of component components is small and the productivity can be improved.

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

Further, in the present embodiment, the case where the light emitting element 18a is integrally configured on the control board 18 has been described as an example, but the light emitting element 18a is configured on a board different from the control board 18. May be good.

Further, in the present embodiment, the case where the hook portion 5c is configured in the outer tube 5a has been described as an example, but the hook portion 5c may be configured in the inner tube 5b or the mouthpiece 6.

1 Vacuum cleaner 2 Vacuum cleaner body 3 Hose 5 Extension pipe 5a Outer pipe 5c Hook part 11 Lower case 12 Upper case 12a Cylinder part 13 Dust case cover (dust collection lid)
14 LED sheet 14a Display window 15a Electric blower 15a Anti-vibration rubber 15b Anti-vibration rubber 16 Case 17 Cord reel 18 Control board 18a Light emitting element 19 Dust collection part 20a Wheel 21 Hose port 21a Handle part 21b Hose connection port 21c Pipe hook part 21c1 receiving part 21c2 guide rib 21c3 holding rib 21c4 bottom rib 21d screw insertion hole 24 handle cover

Claims (3)

A vacuum cleaner body equipped with an electric blower that generates suction power,
A handle part attached to the vacuum cleaner body for holding the vacuum cleaner body, a hose connection port for connecting a hose, and a pipe hook part capable of engaging an extension pipe at the time of storage are integrated. Has a hose mouth, which is made of resin molded product,
The vacuum cleaner main body includes a lower case constituting the lower outer shell of the vacuum cleaner main body and a dust case cover forming a part of the upper outer shell of the vacuum cleaner main body.
A vacuum cleaner characterized in that the hose port is fixed to the lower case with a screw and is locked by engaging with a lock member provided on the back surface of the dust case cover . The electric vacuum cleaner according to claim 1, wherein the pipe hook portion is arranged at the center in the left-right direction of the vacuum cleaner main body. The electric vacuum cleaner according to claim 1 or 2, wherein the receiving portion of the pipe hook portion has an inclination in a direction intersecting the axis of the hose connection port portion in front of the vacuum cleaner main body.

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