JP7446252B2 - vacuum cleaner - Google Patents

Description

The present invention relates to a vacuum cleaner.

For example, when cleaning with a vacuum cleaner, the user visually checks the surfaces to be cleaned, such as floors and shelves, and collects dust and other debris. At this time, if the visibility of the dust is low from the user's perspective, cleaning may be left uncleaned, or cleaning efficiency may be reduced due to cleaning in areas where there is no dust. Therefore, a technique described in Patent Document 1 is known as a technique for improving the visibility of dirt on a surface to be cleaned.

Patent Document 1 discloses a device comprising a suction body having a suction port for inhaling gas containing dust, and a light emitting diode disposed on the suction body, and arranged so as to be in contact with the suction body or substantially parallel to a floor surface. At this time, the light emitting diode is arranged on the mouthpiece so that the irradiation range of the light emitted from the light emitting diode and irradiated to the outside of the mouthpiece expands from a direction extending substantially parallel to the floor surface to a downward direction. There is a vacuum cleaner listed.

International Publication 2008/035478

In the technique described in Patent Document 1, the irradiation range of the light emitting diode with respect to the floor surface was not considered. For this reason, there was a problem in that the irradiated light did not sufficiently reach the surface to be cleaned, causing dirt to be missed.

An object of the present invention is to provide a vacuum cleaner that can solve the above problems, improve the range of light irradiation on the surface to be cleaned, and improve the recognition of dirt.

In order to achieve the above object, the present invention includes a fan motor that generates a suction force, a suction body that sucks up the dust sucked up by the fan motor, and a dust collector that communicates with the suction body and collects the dust that has been sucked up. The suction body includes an irradiation part that irradiates a surface to be cleaned, and the irradiation part includes a plurality of light emitting parts that irradiate a plurality of types of light, and a plurality of light emitting parts that emit light from the light emitting part. The irradiation section includes a plurality of lenses into which light enters and irradiates the surface to be cleaned from the front of the suction body, and the irradiation section includes a lens corresponding to each of the plurality of light emitting sections, and the irradiation section includes a lens corresponding to each of the plurality of light emitting sections. The lens is characterized in that the shape of the lens differs depending on the type.

According to the present invention, it is possible to provide a vacuum cleaner that can improve the irradiation range of light onto the surface to be cleaned and improve the recognition of dirt.

1 is an external perspective view of a vacuum cleaner according to Example 1 of the present invention. It is a top view of the operation part with which the vacuum cleaner concerning Example 1 of the present invention is equipped. FIG. 2 is a perspective view of the mouthpiece according to Example 1 of the present invention, viewed from above. FIG. 2 is a perspective view of the mouthpiece according to Example 1 of the present invention, viewed from below. FIG. 3 is a perspective view of the mouthpiece viewed from above with the upper case and lens fixing member removed. FIG. 6 is a perspective view of the mouthpiece shown in FIG. 5 with the lens fixing member attached thereto. FIG. 2 is an enlarged side view of the front part of the mouthpiece with the upper case and bumper removed. FIG. 3 is a perspective view of the upper case viewed from the back side. This is a hue wheel in the Munsell color system that explains the hue of irradiated light. FIG. 1 is a block diagram of a vacuum cleaner according to Example 1 of the present invention. FIG. 2 is a front view of the lens fixing member according to Example 1 of the present invention, seen from the front. FIG. 2 is a rear view of the lens fixing member according to Example 1 of the present invention, seen from the rear. FIG. 2 is a bottom view of the lens fixing member according to Example 1 of the present invention, viewed from below. 13 is a sectional view taken along the line XIV-XIV in FIG. 12. FIG. FIG. 7 is a front view of a lens fixing member according to Example 2 of the present invention. FIG. 3 is a perspective view of a lens fixing member according to Example 2 of the present invention, seen from the rear. FIG. 7 is a perspective view of a lens fixing member according to Example 3 of the present invention, viewed from the front. FIG. 7 is a perspective view of a lens fixing member according to Example 3 of the present invention, seen from the rear. 19 is a sectional view taken along the line XIX-XIX in FIG. 18. FIG. FIG. 7 is a front view of a lens fixing member according to Example 4 of the present invention, viewed from the front.

Embodiments of the present invention will be described below with reference to the accompanying drawings. Similar components are given the same reference numerals, and similar descriptions will not be repeated.

The various components of the present invention do not necessarily have to exist independently, and one component may be made up of multiple members, multiple components may be made of one member, or a certain component may be different from each other. It is allowed that a part of a certain component overlaps with a part of another component, etc.

FIG. 1 is an external perspective view of a vacuum cleaner 100 according to a first embodiment of the present invention. The vacuum cleaner 100 can be changed to various usage modes such as a handy state and a stick state, and can clean surfaces to be cleaned (not shown) such as floors and top surfaces of shelves. In the following example, it is assumed that the surface to be cleaned is, for example, a flooring. The vacuum cleaner 100 is not limited to the illustrated example, and may be a robot vacuum cleaner. Further, the vacuum cleaner 100 may be of a canister type, a paper pack type, or a cyclone type.

The support stand 70 on which the vacuum cleaner 100 is stored is a stick-like structure in which the vacuum cleaner 100 is connected to an extension tube 300 (accessory) and a standard suction body 200 (accessory). It is configured with a stand 72. Inside the peripheral wall of the extension tube 300, two energizing systems 261 and 261 (FIG. 10) are arranged to connect the control device 500 (FIG. 10) and the irradiation section 202 (FIG. 3). The vacuum cleaner 100 can be used by connecting a small suction spout (accessory), a broom-shaped suction mouth (accessory), an extension hose (accessory), etc., all of which are not shown. The mouthpiece 200 is of a power brush type in which a rotating brush 201 (FIG. 4) is rotated by a brush motor 233 (FIG. 5).

The vacuum cleaner 100 includes a vacuum cleaner main body 1, a suction body 200, a dust case 2 (dust collection section), and a storage battery 3 that stores DC power. The vacuum cleaner main body 1 includes a main body portion 10, a motor case 11, and a handle 12. The main body 10 is connected to the suction body 200 through an extension pipe 300, and dirt on the floor is sucked up through the suction body 200 by suction force generated by a fan motor (not shown) housed in the motor case 11. The sucked up dust is collected in a dust case 2 that communicates with the mouthpiece body 200. Electric power used by the motor is supplied by a storage battery 3. Note that a control device 500 (FIG. 10), which will be described later, is provided in the cleaner body 1 (specifically, the body portion 10). The user can clean the floor by moving the suction body 200 in a desired direction while holding the handle 12. In the vacuum cleaner main body 1, an operating section 121 including buttons 124 and 125 (first operating section; FIG. 2) is installed on the front side of the handle 12 (FIG. 1).

FIG. 2 is a top view of the operation unit 121 provided in the vacuum cleaner 100 according to the first embodiment of the present invention. The operation unit 121 includes a button 124 that changes the operation mode by varying the suction force through the suction port 203 (FIG. 4) by controlling the rotation speed of the fan motor housed in the motor case 11 (FIG. 1). , 125. The button 124 drives the motor to provide a predetermined suction force. The button 125 drives the motor so that the suction force is stronger than the suction force when the button 124 is pressed.

When both the motor housed in the motor case 11 (FIG. 1) and the rotating brush 201 (FIG. 4) are stopped, pressing the buttons 124 and 125 drives the motors to provide the corresponding suction force. The rotating brush 201 rotates at the same rotational speed in both cases. Also, while the vacuum cleaner 100 is operating, by pressing the buttons 124 and 125 for a predetermined period of time or more (for example, pressing and holding for 1 second or more) within a predetermined period of time (for example, within 5 seconds), these driving forces are increased for a predetermined period of time. configured to allow

The operation unit 121 includes a lamp 122 that blinks to indicate a decrease in the remaining battery power of the storage battery 3 (FIG. 1), and a lamp 122 that blinks to indicate that a filter (not shown) housed in the dust case 2 is clogged when a decrease in suction force is detected. A lamp 123 is provided. Furthermore, the operation unit 121 includes a button 126 that stops the operation of the vacuum cleaner 100 by stopping the driving of both the motor housed in the motor case 11 (FIG. 1) and the rotating brush 201 (FIG. 4).

Although the details will be described later, the suction body 200 (FIG. 3) is equipped with an irradiation section 202 (FIG. 3) that can irradiate light toward the surface to be cleaned. , the irradiation section 202 emits light. When the buttons 124 and 125 are pressed and the motor and rotating brush 201 are operating, the irradiation unit 202 emits light and illuminates the floor surface, making it easier to recognize dirt on the floor surface. The operability of the vacuum cleaner 100 can be improved.

Next, the configuration of the mouthpiece body 200 will be explained. FIG. 3 is a perspective view of the mouthpiece according to Example 1 of the present invention, viewed from above, and FIG. 4 is a perspective view of the mouthpiece according to Example 1 of the present invention, viewed from below. FIG. 5 is a perspective view of the mouthpiece viewed from above with the upper case and lens fixing member removed, and FIG. 6 is a perspective view of the mouthpiece with the lens fixing member attached in FIG. 5. . FIG. 7 is an enlarged side view of the front part of the mouthpiece with the upper case and bumper removed, and FIG. 8 is a perspective view of the upper case seen from the back side.

The suction body 200 includes a lower case 241 having a suction port 203 opened toward the surface to be cleaned, an upper case 242 arranged above the lower case 241, and arranged behind the lower case 241 and the upper case 242. A connecting pipe 205 is provided. An air passage 204 communicating with the suction port 203 is formed inside the connecting pipe 205 . A bumper 248 is provided between the lower case 241 and the upper case 242 to keep the lower case 241 and the upper case 242 airtight and to absorb shock when the mouthpiece 200 collides with furniture or the like.

The suction port 203 of the lower case 241 is equipped with a rotating brush 201 that is rotationally driven by a brush motor 233 . Below the lower case 241 are wheels 206 and 207 for moving the suction body 200 in contact with the surface to be cleaned, and a floor surface for stopping the rotation of the rotating brush 201 when the suction body 200 leaves the surface to be cleaned. A switch 234 is provided.

In front of the mouthpiece body 200, an irradiation unit 202 is provided that is configured to be able to irradiate light to the front side. The irradiation unit 202 includes a plurality of LEDs 221 (LEDs 2211a, 2211b, 2212a, 2212b) as a light emitting unit, and a plurality of lenses 223 (lenses 2231a, 2231b, 2232a) arranged in front of the plurality of LEDs 221 and corresponding to each of the plurality of LEDs 221. , 2232b). A plurality of lenses 223 (lenses 2231a, 2231b, 2232a, 2232b) are fixed to the lens fixing member 220. This lens fixing member 220 constitutes a part of the irradiation section 202.

A plurality of LEDs 221 (LEDs 2211a, 2211b, 2212a, 2212b) are mounted on the substrate 222. The substrate 222 is supported by the support portion 231 so that the flat portion of the substrate 222 stands vertically. The support portion 231 is formed on the lower case 241 so as to sandwich both ends of the substrate 222 in the longitudinal direction from the front and back surfaces. Further, as shown in FIG. 7, the support portion 231 is arranged so as to be inclined by a predetermined angle θ1 so that the upper side is located in front of the mouthpiece body 200 with respect to the lower side. Similarly, the board 222 attached to the support part 231 is arranged so that the upper part of the flat part of the board 222 is inclined by a predetermined angle θ1 so that the upper part of the flat part of the board 222 is located in front of the mouthpiece 200 with respect to the lower part. .

In the first embodiment, since the flat portion of the substrate 222 is vertically arranged, the plurality of LEDs 221 can be directed forward. Furthermore, the substrate 222 does not span the entire width of the mouthpiece body 200 in the left and right direction, but is disposed at the center. Air flows through the center of the mouthpiece body 200 toward the air passage 204 inside the connecting pipe 205 .

A plurality of recesses 243 are formed in the upper end surface of the substrate 222 .

The lens fixing member 220 is arranged so that the front plane part stands vertically in the vertical direction. A plurality of extending portions 2201 extending toward the rear of the mouthpiece 200 are formed above the lens fixing member 220, and each of the plurality of extending portions 2201 has a mouthpiece extending from the center of the extending portion 2201. A plurality of convex portions 2202 are formed extending toward the rear of the body 200. Shoulder portions 2203 are formed on both left and right sides of the convex portion 2202 . A protrusion 2204 that protrudes downward is formed below the lens fixing member 220.

In fixing the lens fixing member 220 to the lower case 241 of the mouthpiece 200, the protrusion 2204 of the lens fixing member 220 is first inserted into the groove 244 formed in the lower case 241. Thereby, the lens fixing member 220 is supported by the lower case 241. Then, the convex portion 2202 of the lens fixing member 220 is inserted into the concave portion 243 of the substrate 222. Thereafter, the upper case 242 is attached from above the lower case 241. As shown in FIG. 8, the back surface of the upper case 242 has a groove 245 recessed upward, and a plurality of board restraints that are behind the groove 245 and protrude downward from above the back surface of the upper case 242. A rib 246 and a plurality of lens fixing member regulating ribs 247 are formed in front of the groove portion 245 and protrude downward from above the back surface of the upper case 242 .

When the convex portion 2202 of the lens fixing member 220 is inserted into the concave portion 243 of the substrate 222, movement of the lens fixing member 220 in the left-right direction is restricted. Moreover, since the shoulder portions 2203 formed on both left and right sides of the convex portion 2202 contact the front flat portion of the substrate 222, rearward movement of the lens fixing member 220 is restricted. Further, when the upper case 242 is attached to the lower case 241, the upper end of the board 222 is inserted into the groove 245, and a plurality of board regulating ribs 246 are located behind the flat part of the board 222. Movement to is regulated. Further, when the upper case 242 is attached to the lower case 241, the lens fixing member 220 is covered by the upper case 242, and the upward movement of the lens fixing member 220 is restricted, and the rear of the flat part of the lens fixing member 220 is A plurality of lens fixing member regulating ribs 247 are positioned to regulate rearward movement of the substrate 222. When the suction body 200 is moved to clean the surface to be cleaned, the lens fixing member 220 collides with furniture, etc., and the impact force is transmitted to the substrate 222 via the extension portion 2201 and the shoulder portion 2203. may be damaged. However, in the first embodiment, since the back surface of the upper case 242 is provided with a plurality of lens fixing member regulating ribs 247, the impact force received by the lens fixing member 220 can be received by the lens fixing member regulating ribs 247. It is possible to prevent the impact force received by the lens fixing member 220 from being transmitted to the substrate 222 and damaging the substrate 222.

As described above, according to the configuration of the first embodiment, the positions of the plurality of LEDs 221 (LEDs 2211a, 2211b, 2212a, 2212b) and the plurality of lenses 223 (lenses 2231a, 2231b, 2232a, 2232b) are fixed, and Since the distance is maintained, variations in light from the LEDs 221 (LEDs 2211a, 2211b, 2212a, 2212b) entering the lens 223 can be suppressed, and the irradiation range on the surface to be cleaned can be stabilized. Further, even if the lens fixing member 220 receives an impact force, the impact force can be received by the lens fixing member regulating rib 247, so that the plurality of LEDs 221 (LEDs 2211a, 2211b, 2212a, 2212b) and the plurality of lenses 223 (lens 2231a, 2231b, 2232a, 2232b) can be suppressed from changing.

In the first embodiment, as described above, the substrate 222 is arranged so as to be inclined by a predetermined angle θ1 such that the upper side is located in front of the mouthpiece 200 with respect to the lower side. In accordance with this, the center line L1 of the lens 2232b is inclined by a predetermined angle θ2 with respect to the horizontal line so that the front side faces downward with respect to the rear side, as shown in FIG. With this configuration, in the first embodiment, it is possible to irradiate the surface to be cleaned with the light from the LED 2212b that passes through the lens 2232b. Although not shown, the center lines of the lenses 2231a, 2231b, and 2232a are similarly inclined so as to face the surface to be cleaned.

In the first embodiment, a plurality of LEDs 2211a, 2211b and LEDs 2212a, 2212b are provided, and these are arranged alternately. In Example 1, white LEDs are used for the LEDs 2211a and 2211b, and green LEDs are used for the LEDs 2212a and 2212b. That is, the LEDs are arranged in the order of green, white, green, white, green, white, green from left to right in the left-right direction (width direction) of the mouthpiece body 200. In other words, the LEDs disposed on the mouthpiece body 200 are arranged in a combination of green, white, and green, with white in the center and green on both left and right sides.

In Example 1, LEDs of a plurality of colors, green and white, are turned on at the same time, and the floor surface is irradiated with light in a state in which the LEDs of a plurality of colors are mixed. The reason why LEDs of multiple colors of green and white were selected will be explained.

FIG. 9 is a hue wheel of the Munsell color system (hereinafter referred to as the Munsell color wheel as appropriate) that describes the hue of irradiated light. The Munsell color wheel is an annular Munsell color chart having a center P0, and in the illustrated example, has 20 hues obtained by dividing the circumference into 20 equal parts. Symbols on the circumference represent hues (synonymous with "color"), where R means red, Y means yellow, G means green, B means blue, and P means purple.

For example, if the irradiation unit 202 irradiates light of an absorption color, which is a color that is easily absorbed by the surface to be cleaned, the surface to be cleaned will absorb the light, making it easier for the user to see the light reflected by the dust, and This makes it easier to confirm the location. Therefore, for example, the irradiation unit 202 uses, as light of the color absorbed by the surface to be cleaned, two hues adjacent to the hue corresponding to the color of the surface to be cleaned among the 20 hues in the Munsell color wheel shown in FIG. Light of a non-similar color having a hue belonging to a region other than the region is irradiated. Irradiating light of non-similar colors makes it easier for the surface to be cleaned to absorb light and suppresses reflection, making it easier to make dust more noticeable, thereby improving the visibility of dust.

For example, regarding the hue C1 of the surface to be cleaned, among the 20 hues, the hues adjacent to the hue C1 are hue 5YR and hue 10YR. When it is defined that the area between hue 5YR and hue 10YR including hue C1 is a similar color to hue C1 of the surface to be cleaned, the irradiation unit 202 detects a non-similar color that is a hue belonging to an area other than the similar color. Irradiate light. Note that when monochromatic light is irradiated, any one color can be selected from among non-similar colors, and when multiple colors of light L are irradiated, any two or more colors can be selected.

In Example 1, the irradiation unit 202 lights up LEDs of multiple colors, green (5G) and white, at the same time, and irradiates the floor surface with light in a state in which the LEDs of multiple colors are mixed.

For example, if the surface to be cleaned is a wooden floor, the color of the wood is generally between yellow (5Y) and purple (5P). Therefore, if you irradiate light with a hue in an area other than the area between hue 5Y and hue 5P, specifically, for example, if you irradiate light with a hue between yellow-green (7.5GY) and blue (5B), , the color difference between the dirt and the surface to be cleaned can be increased, making the dirt more noticeable. Therefore, in the first embodiment, a green LED is provided as the irradiation section 202.

FIG. 10 is a block diagram of a vacuum cleaner according to Example 1 of the present invention. The control device 500 of the cleaner body 1 is connected to the buttons 124 and 125 of the operating section 121 and the storage battery 3. When the buttons 124 and 125 of the operation unit 121 are pressed, the control device 500 receives power from the storage battery 3 and supplies power to the suction body 200 through the two energization systems 261 and 261 wired to the extension tube 300. I do. The suction body 200 receives power through the connection terminal 251 and supplies the power to the board 222 . The LED 2212 emits green light based on the power supplied to the board 222. On the other hand, the LEDs 2211a and 2211b emit white light using the power adjusted by the input adjustment section 2215. The LEDs 2212a and 2212b emit green light when the maximum power received by the board 222 is applied, but the LEDs 2211a and 2211b emit white light when the maximum power is reduced. If the white LEDs 2211a and 2211b and the green LEDs 2212a and 2212b are made to emit light at the maximum power at the same time, color unevenness will occur and the visibility of dirt will deteriorate. Therefore, in the first embodiment, the input adjustment unit 2215 adjusts the power supplied to the white LEDs 2211a and 2211b to suppress color unevenness. Since there are individual differences in the amount of light emitted between the white LEDs 2211a and 2211b and the green LEDs 2212a and 2212b, the input adjustment unit 2215 changes the resistance value and adjusts the power supplied to the white LEDs 2211a and 2211b individually. do. With this configuration, in Example 1, light with suppressed color unevenness can be obtained.

Next, the configuration of the lens fixing member 220 that constitutes a part of the irradiation section 202 will be described. FIG. 11 is a front view of the lens fixing member according to Example 1 of the present invention, seen from the front, and FIG. 12 is a rear view of the lens fixing member according to Example 1 of the present invention, seen from the rear. FIG. 13 is a bottom view of the lens fixing member according to Example 1 of the present invention viewed from below, and FIG. 14 is a sectional view taken along the line XIV-XIV in FIG. 12.

As described above, in the first embodiment, white light is emitted from the lenses 2231a and 2231b, and green light is emitted from the lenses 2232a and 2232b. The lenses 2231a, 2231b and the lenses 2232a, 2232b are formed in a conical shape so that the diameter increases from the light incident side (rear side) to the light irradiation side (front side). Further, the lenses 2231a, 2231b and the lenses 2232a, 2232b have different lens diameters on the light irradiation side (front side). That is, the diameter D1 of the irradiation side (front side) of the lenses 2231a and 2231b is larger than the diameter D2 of the irradiation side (front side) of the lenses 2232a and 2232b (D1>D2). Further, the lenses 2231a, 2231b and the lenses 2232a, 2232b are concave from the irradiation side (front side) to the incidence side (rear side), and the irradiation side (front side) of the lenses 2231a, 2231b that irradiates white light. The radii of curvature 2231aR, 2231bR are formed to be larger than the radii of curvature 2232aR, 2232bR on the irradiation side (front side) of the lenses 2232a, 2232b that irradiate green light (2231aR>2232aR, 2231bR>2232bR).

For this reason, the lenses 2231a and 2231b that emit white light have a low refractive index, and therefore have a high degree of light condensation. On the other hand, the lenses 2232a and 2232b that emit green light have a smaller radius of curvature than the lenses 2231a and 2231b that emit white light, so their refractive index is higher and the degree of light condensation is lower. In other words, the lenses 2232a and 2232b that emit green light have a wider angle of view than the lenses 2231a and 2231b that emit white light. In Example 1, lenses with different angles of view are used in combination, so the green light absorbed by the surface to be cleaned is diffused, and the white light is focused and brightened to improve the visibility of dirt. As mentioned above, since the power supplied to the white LEDs 2211a and 2211b is adjusted by the input adjustment unit 2215, the green LEDs 2212a and 2212b are not irradiated excessively, and color unevenness can be suppressed. can.

As explained above, according to the first embodiment, the white LEDs 2211a and 2211b and the green LEDs 2212a and 2212b are simultaneously turned on to illuminate the surface to be cleaned. Since the light from the LEDs 2212b is easily absorbed by the flooring and reflection is suppressed, and the light from the white LEDs 2211a and 2211b makes it easier to see dirt, it is possible to provide a vacuum cleaner with improved visibility of dirt.

Example 2 of the present invention will be described using FIGS. 15 and 16. Components similar to those in Example 1 are denoted by the same reference numerals, and detailed description thereof will be omitted. FIG. 15 is a front view of a lens fixing member according to Example 2 of the present invention, and FIG. 16 is a perspective view of the lens fixing member according to Example 2 of the present invention, viewed from the rear. The difference between the second embodiment and the first embodiment lies in the shape of the lenses arranged in the left-right direction.

In Example 1, all the lenses disposed on the lens fixing member 220 were formed in a conical shape, but in Example 2, the lens at the center of the mouthpiece 200 was formed in a conical shape, and the lenses disposed in the conical shape were formed in a horizontal direction. The lenses on both sides are formed in a horizontally elongated shape extending in the left-right direction of the mouthpiece body 200.

Horizontally long lenses 2233 are formed on both sides of the conical lenses 2231a and 2232a in the left-right direction. An entrance recess 2233d extending in the left-right direction is formed at the rear (back surface) of the horizontally long lens 2233. A plurality of LEDs (white LED 2211b, green LED 2212b) other than the LEDs 2211a and 2212a facing the lens 2231a and the lens 2232a are made to face the entrance recess 2233d. The white light and green light incident from the horizontally long lens 2233 are combined and irradiated from the front of the lens fixing member 220 over the entire width of the horizontally long lens 2233 to illuminate the vicinity of the mouthpiece 200. On the other hand, the light irradiated from the lens 2231a and the lens 2232a arranged at the center of the lens fixing member 220 irradiates a position farther away than the irradiation light from the horizontally long lens 2233.

According to the second embodiment, a conical lens 2231a and a lens 2232a are arranged in the center of the lens fixing member 220, and horizontally elongated lenses 2233 extending in the left-right direction are arranged on both sides of the lens fixing member 220 in the left-right direction. Therefore, it is possible to improve the visibility of dirt located near the mouthpiece body 200 and of dirt located away from the mouthpiece body 200.

Further, according to the second embodiment, by arranging the horizontally elongated lenses 2233 extending in the left-right direction on both sides of the lens fixing member 220 in the left-right direction, light can be irradiated across the width direction of the lens fixing member 220, and the mouthpiece 200 It becomes easier to recognize the width of

Example 3 of the present invention will be described using FIGS. 17 and 18. Components similar to those in Example 1 are denoted by the same reference numerals, and detailed description thereof will be omitted. FIG. 17 is a perspective view of a lens fixing member according to Example 3 of the present invention viewed from the front, and FIG. 18 is a perspective view of a lens fixing member according to Example 3 of the present invention viewed from the rear. FIG. 19 is a sectional view taken along the line XIX--XIX in FIG. 18. The difference between the third embodiment and the first embodiment lies in the shapes of the lenses arranged on both sides of the lens fixing member 220 in the left-right direction.

Among the plurality of lenses, the center lines of the radii of curvature 2231aR and 2232aR on the irradiation side (front side) of the lens 2231a and lens 2232a arranged at the center of the mouthpiece 200 face the front of the mouthpiece 200.

The center line of the radii of curvature 2231cR and 2232cR on the irradiation side (front side) of the lenses 2231c and 2232c arranged on both sides in the left-right direction of the lenses (lens 2231a and lens 2232a) arranged in the center of the mouthpiece 200 is The mouthpiece body 200 is inclined by predetermined angles θ3 and θ4 toward the outside in the left-right direction of the mouthpiece body 200, respectively. In the third embodiment, the angles θ3 and θ4 are 15 degrees. White LED light is emitted from the lens 2231c, and green LED light is emitted from the lens 2232c.

According to the third embodiment, the center lines of the radii of curvature 2231cR and 2232cR on the irradiation side (front side) of the lenses 2231c and 2232c are aligned in the left-right direction of the mouthpiece 200 by angles θ3 and θ4, respectively, with respect to the front of the mouthpiece 200. Since it is tilted so as to face outward and the white LED 2211b and green LED 2212b are lit at the same time to illuminate the surface to be cleaned, the visibility of dirt on both the left and right ends of the suction body 200 can be improved. Thus, it is possible to provide a vacuum cleaner that can suppress unsucked dirt at both left and right ends of the suction body 200.

Example 4 of the present invention will be described using FIG. 20. Components similar to those in Example 1 are denoted by the same reference numerals, and detailed description thereof will be omitted. FIG. 20 is a front view of a lens fixing member according to Example 4 of the present invention, viewed from the front. The difference between the fourth embodiment and the first embodiment is that the surface of the lens fixing member 220 is textured.

In FIG. 20, at least the surface of the lens fixing member 220 on the irradiation side is textured to form fine irregularities, so that the surface of the lens fixing member 220 is in a cloudy state. In Example 3, as in Example 1, white LED light and green LED light are emitted at the same time, and the power supplied to the white LED light is adjusted to suppress color unevenness. When white LED light and green LED light are incident on the lens fixing member 220, the light is diffusely reflected by the finely formed irregularities, and the white LED light and green LED light are mixed.

In Example 4, when applying the texturing to the surface of the lens fixing member 220, the texturing is strengthened on the central part 220a of the lens fixing member 220, and the texturing is increased from the central part 220a to the outer part 220b located on the outside in the left-right direction of the mouthpiece 200. As I progress, I try to weaken the graining.

According to the fourth embodiment, since the surface of the lens fixing member 220 is textured, the surface to be cleaned can be irradiated with light with less color unevenness.

Note that when applying the graining process, it may be applied uniformly to the entire surface of the lens fixing member 220.

In Examples 1 to 4 described above, white LED light and green LED light are used, but for example, all the LEDs 221 are white LEDs, and some of the lenses 2232a, 2232b, and 2232c are green lenses. You can also do it.

Note that the present invention is not limited to the embodiments described above, and includes various modifications. The embodiments described above are described in detail to explain the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to those having all the configurations described.

DESCRIPTION OF SYMBOLS 1... Vacuum cleaner body, 2... Dust case, 3... Storage battery, 10... Main body part, 11... Motor case, 12... Handle, 70... Support stand, 71... Base, 72... Stand, 100... Vacuum cleaner, 121... Operation unit, 122, 123... Lamp, 124, 125, 126... Button, 200... Sucking body, 201... Rotating brush, 202... Irradiation unit, 203... Suction port, 204... Air path, 205... Connection pipe, 206, 207 ...Wheel, 220...Lens fixing member, 220a...Central part, 220b...Outside part, 2201...Extension part, 2202...Convex part, 2203...Shoulder part, 2204...Protrusion part, 221, 2211a, 2211b, 2212a, 2212b... LED, 2215... Input adjustment unit, 222... Board, 223, 2231a, 2231b, 2231c, 2232a, 2232b... Lens, 2231aR, 2231bR, 2231cR, 2232aR, 2232bR, 2232cR... Radius of curvature, 2233... Horizontally long lens, 2233d... Incident concave part , 231... Support part, 233... Brush motor, 234... Floor switch, 241... Lower case, 242... Upper case, 243... Recessed part, 244, 245... Groove part, 246... Board regulating rib, 247... Lens fixing member regulating rib , 248...Bumper, 251...Connection terminal, 261...Electrification system, 300...Extension pipe, 500...Control device

Claims (6)

A vacuum cleaner comprising: a fan motor that generates a suction force; a suction body that sucks up dirt sucked up by the fan motor; and a dust collection section that communicates with the suction body and collects the dust that has been sucked up. ,
The suction body includes an irradiation part that irradiates the surface to be cleaned,
The irradiation section includes a plurality of light emitting sections that irradiate a plurality of types of light,
comprising a plurality of lenses into which light from the light emitting part enters and irradiates it from the front of the mouthpiece toward the surface to be cleaned,
The irradiation unit includes a lens corresponding to each of the plurality of light emitting units, and
A vacuum cleaner characterized in that the shape of the lens changes depending on the type of light . In claim 1,
The irradiation section includes a light emitting section that irradiates green and white light,
A vacuum cleaner characterized in that the lens that emits green light has a wider angle of view than the lens that emits white light . In claim 2,
A vacuum cleaner characterized in that, among the plurality of lenses, the diameter on the irradiation side of the lens that irradiates white light is larger than the diameter on the irradiation side of the lens that irradiates green light. In any one of claims 1 to 3,
Among the plurality of lenses, the lens at the center of the mouthpiece body is formed in a conical shape, and the lenses on both sides of the conical lens in the left-right direction are formed in a horizontally elongated shape extending in the left-right direction of the mouthpiece body. A vacuum cleaner characterized by: In any one of claims 1 to 4,
Among the plurality of lenses, the center line of the radius of curvature on the irradiation side of the lens disposed in the center of the mouthpiece faces the front of the mouthpiece,
The center line of the radius of curvature on the irradiation side of the lenses placed on both sides of the lens placed in the center of the mouthpiece body points outward in the left-right direction of the mouthpiece body by a predetermined angle with respect to the front of the mouthpiece body. A vacuum cleaner characterized by being tilted like this. In claim 5,
A vacuum cleaner characterized in that the predetermined angle is 15 degrees.

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