Suction mouth body of electric vacuum cleaner, and electric vacuum cleaner

Abstract

To realize a suction port body of a vacuum cleaner having a light emitting unit with improved impact resistance.SOLUTION: A suction port body 100 of a vacuum cleaner 1 includes: a case body 110 having a suction port 120 in a bottom surface; a tube part 150 for obtaining communication between a suction source and the suction port 120; and a light emitting unit 200 arranged to radiate light to a front side of the case body 110. The suction port body of the vacuum cleaner is characterized by fixing the light emitting unit 200 to the case body 110.SELECTED DRAWING: Figure 10

Description

[Technical Field]

[0001] The present invention relates to a suction head body for a vacuum cleaner and to a vacuum cleaner. [Background technology]

[0002] The floor suction tool of an electric vacuum cleaner disclosed in JP 2010-148661 A is provided with an illumination unit that illuminates the area ahead. This floor suction tool is based on a structure with a flip-up shutter, and the illumination unit is provided above the main body case. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-148661 Summary of the Invention [Problem to be solved by the invention]

[0004] Here, the suction port body of the floor suction device of the above-mentioned conventional technology is a part that is easily subjected to external impacts when carrying or cleaning, and there is a concern that such impacts may cause the lighting unit to become loose or shift out of position.

[0005] Therefore, an object of the present invention is to realize an air intake body with a light-emitting unit that has improved impact resistance. [Means for solving the problem]

[0006] The suction port body of the present invention, which is provided to solve the above-mentioned problems, comprises a case body having a suction port on a bottom surface, a pipe portion that connects a suction source and the suction port, and a light-emitting unit arranged to irradiate light to the front side of the case body, wherein the light-emitting unit is fixed to the case body, The light-emitting unit has a light source, a cover that transmits light from the light source, and a guide part that guides the light from the light source to the cover, and the case body includes a main case that has the suction port and forms an suction space, and a covering case that covers at least a part of the main case, and the cover or the guide part has an insertion hole, and a fixing device is fixed to the covering case from the main case through the insertion hole.

[0007] By configuring the suction port body of the present invention as described above, even if it receives an external impact when carrying or cleaning, the impact is unlikely to cause problems such as the light emitting unit becoming detached. Therefore, by configuring it as described above, it is possible to realize a suction port body with a light emitting unit that has improved impact resistance.

[0008] The electric vacuum cleaner of the present invention is provided with the suction mouth body of the present invention.

[0009] The electric vacuum cleaner of the present invention is provided with the suction mouth body of the present invention described above, and therefore it is possible to realize an electric vacuum cleaner that is provided with a suction mouth body that is compact while being provided with a light source. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a suction head body of a vacuum cleaner and a vacuum cleaner that solve the above-mentioned problems. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a perspective view showing an electric vacuum cleaner according to an embodiment of the present invention; [Figure 2] 2 is a cross-sectional view showing the main part of the electric vacuum cleaner shown in FIG. 1 as seen from the side. [Figure 3] 2 is a perspective view showing a suction mouth body provided in the vacuum cleaner shown in FIG. 1. FIG. [Figure 4] FIG. 4 is an exploded perspective view showing the suction port body shown in FIG. 3. [Figure 5]4 is a perspective view showing a state in which a second covering case component constituting the suction port body shown in FIG. 3 is viewed from the back side. FIG. [Figure 6] 4 is a plan view showing a state in which a second covering case component is removed from the suction port body shown in FIG. 3. FIG. [Figure 7] FIG. 4 is a bottom view showing the suction port body shown in FIG. 3. [Figure 8] FIG. 7 is an enlarged view of the area surrounded by the dashed line in FIG. 6. [Figure 9] 4 is a cross-sectional view showing the suction port body shown in FIG. 3 as viewed from the side. FIG. [Figure 10] 4 is an exploded perspective view showing the suction port body shown in FIG. 3 from which the second covering case component has been removed, with the light emitting unit disassembled. FIG. [Figure 11] 11 is an exploded perspective view showing the suction port body shown in FIG. 10 with a light source and a substrate attached to a light emitting unit placement section. FIG. [Figure 12] 12 is an exploded perspective view showing the suction mouth body shown in FIG. 11 with a cover attached to a light emitting unit placement section. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, a vacuum cleaner 1 according to one embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the overall configuration of the vacuum cleaner 1 will be briefly described, followed by a more detailed description of the main parts. In the following description, unless otherwise specified, positional relationships in the up-down direction, width direction, front-rear direction, etc. will be described based on the state in which the vacuum cleaner 1 is set upright as shown in FIG.

[0013] <<Overall configuration of vacuum cleaner 1>> As shown in Figures 1 and 2, the vacuum cleaner 1 is a stick-shaped (vertical) vacuum cleaner. The vacuum cleaner 1 can be, for example, a rechargeable type or one that receives power from an external power source via a power cord. As shown in Figures 1 and 2, the vacuum cleaner 1 includes a vacuum cleaner main body 10, a handle 20, a dust collection unit 50 (dust collection device), an extension tube 70, and a suction port body 100. Note that, although the following description will be given taking as an example a stick-shaped (vertical) vacuum cleaner 1 equipped with the suction port body 100, a so-called canister-type vacuum cleaner or a handheld vacuum cleaner may also be configured to include the suction port body 100.

[0014] The vacuum cleaner main body 10 forms the main body of the electric vacuum cleaner 1 and is the part that exerts suction power and performs the function of collecting dust. Specifically, as shown in Fig. 2, the vacuum cleaner main body 10 includes, inside a housing 12 that forms the housing, an electric blower 14 for sucking air and generating an airflow, a drive circuit for driving other electronic components, and other components.

[0015] The vacuum cleaner body 10 includes a battery storage section 15, and a battery 15a is stored in the battery storage section 15. The battery 15a (battery storage section 15) is provided in an area of ​​the vacuum cleaner body 10 that is rearward of the position where the handle section 20 is provided. The battery 15a is also provided in an area above the electric blower 14.

[0016] A main body suction port 32 for connecting an extension tube 70 or a suction port body 100 is provided at the lower end of the vacuum cleaner main body 10. The vacuum cleaner main body 10 has a main body pipe section 30. The main body pipe section 30 forms the main body suction port 32 at one end and also forms an outlet that communicates with the inlet of the dust collection section 50. The main body suction port 32 is provided on the lower side in the vertical direction of the vacuum cleaner main body 10. The battery storage section 15 is arranged to be aligned with the handle section 20 in a direction (front-to-back direction) perpendicular to the axial direction (vertical direction) of the vacuum cleaner main body 10.

[0017] The handle 20 is a portion provided to allow a user of the vacuum cleaner 1 to grip the vacuum cleaner body 10. The handle 20 may have any suitable shape, such as a circular shape, an oval shape such as an ellipse or an oval, a polygonal shape, or a rod shape. In this embodiment, the handle 20 has an oval shape. The handle 20 also forms a handle opening 22 for inserting a hand. The handle opening 22 is opened so that its vertical length is greater than its longitudinal length. The vacuum cleaner 1 is configured so that a user can grip the vacuum cleaner body 10, for example, by inserting their fingers (excluding the thumb) through the opening formed by the handle 20. The handle 20 is provided on the upper side of the vacuum cleaner body 10. The handle 20 is also located on the front side of the vacuum cleaner body 10. To explain the positional relationship between the handle 20 and the battery 15a in detail, the battery 15a is arranged so as to overlap below the upper end of the handle opening 22 and above the lower end of the handle opening 22. The external exhaust ports of the vacuum cleaner body 10 are arranged on both the left and right sides of the rear side.

[0018] The dust collection unit 50 is a portion where dust sucked by the vacuum cleaner 1 is collected. As shown in FIGS. 1 and 2, the dust collection unit 50 is provided so as to be continuous with the vacuum cleaner body 10. The dust collection unit 50 may be of any suitable type, such as a paper bag type or a cyclone type dust collection device. In this embodiment, the dust collection unit 50 is configured as a cyclone type dust collection device. That is, the dust collection unit 50 is configured to collect dust by introducing air through a dust collection unit inlet 58 provided in the outer tube 52, forming a swirling airflow within the outer tube 52, and then discharging the air. The dust collection unit 50 can be of a so-called single-stage or multi-stage separation type, but in this embodiment, a single-stage separation type is adopted. As shown in FIG. 2, the dust collection unit 50 has an outer tube 52 (dust cup) and a structure 54, and a dust collection space 56 is formed between them.

[0019] The extension pipe 70 is a cylindrical member that detachably connects the vacuum cleaner body 10 and the suction port body 100. One end of the extension pipe 70 is shaped so that it can be inserted into the body suction port 32 provided in the body pipe section 30 of the vacuum cleaner body 10, and the other end is shaped so that it can be connected to the suction port body 100. By connecting the vacuum cleaner body 10 and the suction port body 100 via the extension pipe 70, a continuous, communicating path (air passage) can be formed from the suction port body 100 to the vacuum cleaner body 10.

[0020] The suction port body 100 is connected directly to the main body suction port 32 of the vacuum cleaner main body 10, or indirectly via an extension tube 70. The suction port body 100 has a suction port 120 and a tube section 150. The suction port 120 opens toward the bottom. The tube section 150 can be connected to the main body suction port 32 or the extension tube 70. Characteristic parts of the suction port body 100 will be described in detail later.

[0021] The electric vacuum cleaner 1 is generally configured as described above. The electric vacuum cleaner 1 has characteristic structures in the dust collection section 50 and the suction mouth body 100. The suction mouth body 100 will be described in more detail below.

[0022] <About the suction port body 100> Next, the configuration of the suction port body 100 will be described in detail with reference to Figs. 3 to 12, etc. The suction port body 100 is used to take in dust from the outside, and is able to suck in air and dust from the outside by the suction force of the electric blower 14. As shown in Figs. 3 and 4, etc., the suction port body 100 has a case body 110 and a pipe section 150 (joint section). Furthermore, as shown in Figs. 6 and 7, etc., the suction port body 100 has a rotating cleaning body 160, a drive section 170, and a power transmission mechanism 180 inside the case body 110. In addition to these components, the suction port body 100 also has a light-emitting unit 200.

[0023] The case body 110 is the part that is placed on the floor during cleaning, and has a shape that is long in the left-right direction relative to the front-rear direction, which is the direction in which the user operates the vacuum cleaner during cleaning. As shown in FIG. 4 and other figures, the case body 110 includes a main case 112 and a covering case 114, and the internal area defined by these includes an intake space 116, a storage section 118, a communication section 140, and the like. In addition to these, the case body 110 also includes a light-emitting unit mounting section 130 for mounting the light-emitting unit 200, which will be described in detail later. The case body 110 also includes a bumper 115 on the front side (front face) to absorb impact when the vacuum cleaner 110 collides with another object, such as a wall.

[0024] The main body case 112 is a component that forms the bottom portion of the case body 110. The main body case 112 has an inlet 120 and is a component that forms the bottom portion of the suction space 116 and the storage section 118. The inlet 120 is an opening formed in the main body case 112. The inlet 120 is an opening that is long in the width direction (left-right direction) of the main body case 112 (case body 110). The opening shape of the inlet 120 can be any appropriate shape, but in this embodiment, it is rectangular. The main body case 112 also has a curved portion 126. The curved portion 126 is a portion that covers the area of ​​the suction space 116 formed inside the case body 110, which corresponds to the suction space 116 in which the rotating cleaning body 160 is disposed.

[0025] The covering case 114 is a member provided to cover at least a portion of the above-described main case 112. As shown in Figures 3 and 4, the covering case 114 has a first covering case component 122, a second covering case component 123, and a third covering case component 124.

[0026] The first covering case component 122 mainly constitutes a portion of the covering case 114 that is on one side in the left-right direction of the case body 110. In this embodiment, the first covering case component 122 covers areas on the front side of the case body 110 that are adjacent to the suction space 116 on the left and right, areas corresponding to the storage section 118 formed inside the case body 110, and the like.

[0027] The second covering case component 123 is a part located on the central side in the left-right direction. The second covering case component 123 covers at least the light source 210 that constitutes the light emitting unit 200.

[0028] The third covering case component 124 is not an essential component, but it forms the other side of the covering case 114 in the left-right direction (the opposite side to the first covering case component 122).

[0029] As shown in Figures 3, 4, 9, etc., curved portion 126 is a portion that has a curved shape that is convex upward. The portion indicated by a black circle in the figures corresponds to apex T of the curved portion. Curved portion 126 is provided in suction space 116 formed inside case body 110, at a position that corresponds to suction space 116 where rotary cleaning body 160 is disposed. Curved portion 126 is formed to extend in the left-right direction (width direction) in case body 110. Curved portion 126 is formed to be curved in an arc shape when case body 110 is viewed from the side.

[0030] The suction space 116 communicates with the outside through the suction port 120 on the bottom side. Therefore, the suction space 116 can suck in dust and air from the suction port 120 and allow them to flow in. The suction space 116 extends in the left-right direction of the case body 110 and is large enough to accommodate the rotary cleaning body 160. The rotary cleaning body 160 is accommodated in the suction space 116 so that it can rotate around its axis. The suction space 116 communicates with a communication section 140 provided on the rear side of the suction space 116 at its middle part in the left-right direction (approximately the center part in the left-right direction in this embodiment). The communication section 140 has a communication port 140a at its end (opposite the pipe section 150) that communicates with the suction space 116.

[0031] Similar to the suction space 116, the accommodation section 118 is a hollow space formed inside the case body 110 by combining the main body case 112 and the covering case 114. The accommodation section 118 is provided at a position offset in the longitudinal direction from the suction space 116 or at a position rearward from the suction space 116. The accommodation section 118 accommodates the drive section 170, which will be described in detail later, the power transmission mechanism 180, the support section 190 (support section 190a), and the like.

[0032] As shown in Figures 4, 6, etc., the light-emitting unit mounting section 130 is a portion of the case body 110 where the light-emitting unit 200, which will be described in detail later, is mounted. The light-emitting unit mounting section 130 is configured by combining a first covering case component 122, a second covering case component 123, and a third covering case component 124 that constitute the covering case 114. Specifically, the covering case 114 is formed so that most of the first covering case component 122 and the third covering case component 124 do not overlap with the main case 112. Meanwhile, the covering case 114 is attached such that the second covering case component 123 covers at least a portion of the main case 112 in the portion that forms the light-emitting unit mounting section 130.

[0033] In this embodiment, the light emitting unit 200 is disposed in the longitudinal (widthwise) intermediate portion (the center portion in the illustrated example) of the main body case 112. Correspondingly, as shown in FIGS. 4 and 5, the covering case 114 is provided with a bulging portion 125 in which the second covering case component 123 bulges away from the first covering case component 122 at a position that is the longitudinal intermediate portion of the case body 110. As a result, the covering case 114 is provided with a light emitting unit placement portion 130 for incorporating the light emitting unit 200, in the longitudinal (widthwise) intermediate portion, between the first covering case component 122 and the third covering case component 124. The bulging portion 125 has a shape that opens forward (toward the front side).

[0034] Furthermore, at least a portion of the covering case 114 is light-blocking. Specifically, at least a portion of the covering case 114 that forms the light-emitting unit placement section 130 is light-blocking. In this embodiment, at least a portion of the first covering case component 122 that is covered by the bulging section 125 (second covering case component 123) is light-blocking. At least a portion of the second covering case component 123 that forms the bulging section 125 is light-blocking. Furthermore, the main case 112 (case body 110) has at least a portion of a transmissive section 134 that transmits light from the light-emitting unit 200 (light source). The light source of the light-emitting unit 200 is tilted so that the optical axis faces the bottom side, and when the optical axis passes through the main case 112, it is preferable that the main case 112 easily transmits light.

[0035] As shown in FIGS. 10 and 11 , the light-emitting unit mounting section 130 has a base 132 therein. The base 132 is provided in the covering case 114 at a position rearward of the apex T of the curved portion 126. The base 132 functions as a base supporting the light-emitting unit 200, which will be described in detail later. When the case body 110 is viewed from the side, the base 132 can be formed, for example, by bulging out a portion of the main case 112 that is rearward of the apex T of the curved portion 126, or by placing a separately prepared member in that portion. In this embodiment, the base 132 is formed by bulging out the main case 112. The base 132 is disposed at a position lower than the apex T of the curved portion 126.

[0036] As shown in FIGS. 10 and 11 , the light-emitting unit mounting portion 130 has a base portion 132 provided with a protrusion 130b, such as a screw or pin. The protrusion 130b is provided so as to protrude upward from the suction space 116 side of the main body case 112 toward the base portion 132. The light-emitting unit mounting portion 130 also has a convex boss portion 130d, which has a recess 130c into which the protrusion 130b can be inserted, at a position on the second covering case component 123 corresponding to the protrusion 130b. The case body 110 can be configured such that the main body case 112 and the second covering case component 123 are connected to each other at the light-emitting unit mounting portion 130 by a connecting structure formed by the protrusion 130b and the boss portion 130d. Furthermore, by assembling the components that make up the light-emitting unit 200 in the case body 110 using the protrusion 130b as a reference, the positioning accuracy of the components that make up the light-emitting unit 200 can be improved.

[0037] As shown in FIG. 9 and other figures, the communication section 140 is a space formed inside the case body 110 so as to communicate with the above-mentioned suction space 116. The communication section 140 communicates with the suction space 116 at a middle portion in the left-right direction (width direction) of the suction space 116. In this embodiment, the communication section 140 communicates with the suction space 116 at approximately the center portion in the left-right direction of the suction space 116. The communication section 140 also communicates with the pipe section 150 via a communication opening 140a. Therefore, the communication section 140 functions as a space that communicates between the suction space 116 and the pipe section 150. At least a portion of the light-emitting unit 200 is located forward of the communication opening 140a.

[0038] The pipe section 150 is provided in the case body 110 at a position on the rear side (rear side) of the vacuum cleaner 1 so as to communicate with the communication section 140. The pipe section 150 is a portion (joint section) that functions as a joint to which the extension pipe 70 is connected. The pipe section 150 is attached to the case body 110 so as to be rotatable within a predetermined rotation range (at least one of the front-rear direction and the left-right direction). Specifically, the joint section to which the pipe section 150 is connected rotates left-right relative to the case body 110, and the pipe section 150 rotates front-rear relative to the joint section.

[0039] The rotary cleaning body 160 is a member housed in the suction space 116 and supported rotatably around a support shaft extending in the left-right direction (width direction) of the case body 110. Specifically, one end of the support shaft of the rotary cleaning body 160 is rotatably supported by a first support portion 190a of a support portion 190, which will be described in detail later, and the other end is rotatably supported by a second support portion 190b. Furthermore, the rotary cleaning body 160 receives power generated in a drive portion 170 via a power transmission mechanism 180, which will be described in detail later, and is rotatable in the suction space 116. In this way, the rotary cleaning body 160 is supported rotatably relative to the case body 110.

[0040] The drive unit 170 serves as a drive source for the rotary cleaning body 160. The drive unit 170 is configured with an electric motor and is capable of outputting rotational power from an output shaft 170a. The drive unit 170 is housed in a space that forms the accommodation section 118. Specifically, the drive unit 170 is housed in a space (accommodation section 118) that is located rearward of the suction space 116 and on one side in the left-right direction (width direction) of the communication section 140 when the suction port body 100 is viewed from above. The drive unit 170 is housed in an orientation in which the output shaft 170a protrudes approximately parallel to the rotation support shaft of the rotary cleaning body 160.

[0041] 4, 6, etc., the power transmission mechanism 180 is a mechanism for transmitting power between the rotary cleaning body 160 and the drive unit 170. The power transmission mechanism 180 is housed in a space (housing unit 118) that is provided on one side in the left-right direction (width direction) of the suction space 116, within the space that forms the housing unit 118, when the suction port unit 100 is viewed from above. The power transmission mechanism 180 includes an output pulley 182, a driven pulley 184, and a belt 186.

[0042] The output pulley 182 is connected to the output shaft 170a of the drive unit 170 that protrudes toward the housing portion 118, and is rotatable integrally with the output shaft 170a. The output pulley 182 is configured as a toothed pulley that has teeth extending in the axial direction on its periphery. The output pulley 182 is housed in the rear region of the case body 110 (suction port body 100) in the housing portion 118a.

[0043] The driven pulley 184 is a pulley that is directly or indirectly connected to the rotary cleaning body 160. The driven pulley 184 is rotatable integrally with the rotary cleaning body 160. The driven pulley 184 is configured as a toothed pulley that has teeth extending in the axial direction on the periphery around which the belt 186 is wound. The driven pulley 184 is housed in the housing portion 118 at a position adjacent to the suction space 116 in the left-right direction (width direction). Therefore, the driven pulley 184 is housed in the housing portion 118a at a position away from the output pulley 182 on the front side of the case body 110 (suction port body 100).

[0044] The belt 186 is configured as an endless belt with teeth. The belt 186 is looped between an output pulley 182 and a driven pulley 184. The teeth on the belt 186 mesh with the teeth on the output pulley 182 and the driven pulley 184. Therefore, by operating the drive unit 170, the power transmission mechanism 180 can transmit the rotational power output from the output shaft 170a of the drive unit 170 to the rotary cleaning body 160 via the output pulley 182, the belt 186, and the driven pulley 184, thereby rotating the rotary cleaning body 160.

[0045] Support portion 190 rotatably supports rotary cleaning body 160 inside case body 110. Specifically, support portion 190 has a first support portion 190a that supports rotary cleaning body 160 on one axial side, and a second support portion 190b that supports rotary cleaning body 160 on the other axial side. First support portion 190a and second support portion 190b each include a bearing, which enables the support shaft of rotary cleaning body 160 to be rotatably supported. Third covering case component 124 has a portion that covers second support portion 190b of main case 112, but from the perspective of weight reduction, a portion that covers second support portion 190b may not be provided.

[0046] The light-emitting unit 200 emits light toward the front side of the case body 110 to illuminate an area in front of the case body 110. As shown in Fig. 6 and Figs. 8 to 12, the light-emitting unit 200 is assembled to a light-emitting unit mounting portion 130 provided in the case body 110. The light-emitting unit 200 includes, as components, a light source 210, a substrate 220, a cover 230, a guide portion 250, and a fixture 260.

[0047] The light source 210 emits light when powered, such as an LED or a light bulb. In this embodiment, an LED is provided as the light source 210. The light source 210 is mounted on the surface side of the substrate 220. The light source 210 is arranged on the base 132 with its optical axis facing forward (front side). In this embodiment, the substrate 220 on which the light source 210 is mounted is oriented so that the light source 210 faces forward, and the substrate 220 is erected on the base 132 behind the protrusion 130b, thereby disposing the light source 210 on the base 132. In addition, only one light source 210 or a plurality of three or more light sources 210 may be provided, but in this embodiment, two light sources 210 are provided. The light sources 210, 210 are arranged at a predetermined interval in the longitudinal direction (left-right direction) of the case body 110. In addition, the light sources 210, 210 are arranged symmetrically with the longitudinal center of the case body 110 as a boundary.

[0048] 10 and 11, the substrate 220 has the light source 210 attached to its front surface as described above, and is provided with the connector 222 on its rear surface. The substrate 220 has an engaged portion 224 at a position that is the upper end side when the substrate 220 is placed upright on the base 132. The engaged portion 224 is a portion that engages with the guide portion 250. The engaged portion 224 may have any shape or structure as long as it can engage with the guide portion 250, but in this embodiment it is formed by a rectangular cutout.

[0049] As shown in FIG. 11 , the light source 210 is mounted on the substrate 220 as described above and is disposed in the light-emitting unit mounting section 130. As a result, the light source 210 is disposed so as to be able to irradiate light onto the front side of the case body 110 through the opening 130a. The light source 210 is disposed between the main body case 112 and the covering case 114 in the light-emitting unit mounting section 130. The light source 210 is disposed above the suction space 116. The light source 210 is located in front of the tube section 150. The light source 210 is disposed in the base section 132, and is therefore located rearward of the top of the curved section 126. The light source 210 is disposed in an inclined position so that its optical axis approaches the bottom side.

[0050] The cover 230 is capable of transmitting light from the light source 210. Specifically, as shown in FIGS. 10 to 12, the cover 230 includes a light emitting portion 232, a base connecting portion 234, and a boss engaging portion 240.

[0051] The light emitting portion 232 is formed in a plate shape that closes the opening 130a of the light emitting unit arrangement portion 130. The light emitting portion 232 is capable of transmitting light emitted from the light source 210. In this embodiment, the light emitting portion 232 is formed of a transparent plate.

[0052] Base connection portion 234 is a portion that is connected to base portion 132. Base connection portion 234 has a protrusion engagement portion 236 and a base engagement portion 238. Protrusion engagement portion 236 and base engagement portion 238 give base connection portion 234 a hook-like shape that is bent into an L-shape in side view.

[0053] The protrusion engagement portion 236 is connected to the light-emitting portion 232 at its base end, and is a plate-like portion that extends in a direction intersecting with the light-emitting portion 232. The protrusion engagement portion 236 extends rearward from the light-emitting portion 232 inside the light-emitting unit arrangement portion 130 when the light-emitting unit 200 is assembled. The protrusion engagement portion 236 is provided with an insertion hole 236a through which the protrusion 130b provided on the base portion 132 can be inserted. The base engagement portion 238 is a plate-like portion that extends in a direction intersecting with the protrusion engagement portion 236 on the tip side of the protrusion engagement portion 236 (the rear side when the light-emitting unit 200 is assembled).

[0054] The boss engagement portion 240 is a portion that engages with the boss portion 130d provided on the top surface side of the light-emitting unit arrangement portion 130 (the bulging portion 125 of the second covering case constituent portion 123). The boss engagement portion 240 is provided at a position spaced above the protrusion engagement portion 236 of the base connection portion 234 described above. Similar to the protrusion engagement portion 236, the boss engagement portion 240 is connected to the light output portion 232 at its base end, and is a plate-shaped portion that extends in a direction intersecting the light output portion 232 (rearward). The boss engagement portion 240 is provided with a boss engagement hole 242 that is large enough to allow the boss portion 130d to be inserted therethrough.

[0055] The cover 230 is provided with the base connection portion 234 and the boss engagement portion 240 on the back side (rear side) of the light emitting portion 232. The base engagement portion 238 is bent downward relative to the protrusion engagement portion 236 at a position away from the connection position between the protrusion engagement portion 236 and the light emitting portion 232 (the base end of the protrusion engagement portion 236) by an amount corresponding to the length of the base portion 132 in the front-to-rear direction. Therefore, as shown in FIGS. 8 and 12, when the base connection portion 234 is attached so that the protrusion engagement portion 236 covers the base portion 132 from above, the base engagement portion 238 is engaged with the rear side of the base portion 132. As a result, the base connection portion 234 is positioned relative to the base portion 132 in the front-to-rear direction. Furthermore, the protrusion 130b provided on the base portion 132 is inserted into the insertion hole 236a provided in the protrusion engagement portion 236. Furthermore, the boss engagement portion 240 has a boss portion 130d that protrudes downward from the top surface side of the light-emitting unit arrangement portion 130 inserted into the boss engagement hole 242. Furthermore, the protrusion 130b that protrudes upward from below is inserted into the recess 130c provided in the boss portion 130d via the insertion hole 236a of the protrusion engagement portion 236, and is in an engaged state. As a result, the base connection portion 234 and the boss engagement portion 240 are positioned in the front-rear direction and the left-right direction (width direction). In this manner, the base connection portion 234 is attached to the base portion 132. Therefore, the light emitting portion 232 is positioned in any direction, front to back, left to right, by the connection structure formed by the base connecting portion 234, the boss engaging portion 240, the base portion 132, and the protrusion 130b.

[0056] The guide portion 250 is provided to guide the light generated by the light source 210 to the cover 230. As shown in Figs. 6 and 8, etc., and as shown in Figs. 10 to 12, etc., the guide portion 250 is fixed to the case body 110 in a state where it is sandwiched between the substrate 220 and the cover 230. The guide portion 250 is fixed in a state where it is engaged with the substrate 220. The guide portion 250 includes a light guiding portion 252 and an engaging portion 256.

[0057] The light guide 252 functions as a light guide member that guides light generated in the light source 210 toward the cover. The light guide 252 has a cylindrical shape with openings on one end and the other end. This allows the light guide 252 to guide light introduced through the opening on one end toward the other end and emit it from the opening on the other end. The light guide 252 also has a light-blocking property. This allows the light guide 252 to prevent light introduced from one end from leaking to the outside before reaching the other end. Therefore, the light guide 252 can guide substantially all of the light generated in the light source 210 from one end to the other end.

[0058] Furthermore, the light guiding section 252 has a length equivalent to the distance between the substrate 220 and the cover 230, which are arranged opposite each other in the front-rear direction when the light-emitting unit 200 is incorporated into the light-emitting unit mounting section 130. Therefore, by arranging the light guiding section 252 between the substrate 220 and the cover 230, the light guiding section 252 can be arranged so that one end of the light guiding section 252 is in contact with the surface of the substrate 220 and the other end of the light guiding section 252 is in contact with the back surface (rear surface) of the cover 230. Therefore, the light guiding section 252 can suppress light leakage both on the substrate 220 side, which is a light inlet, and on the cover 230 side, which is a light outlet.

[0059] The light guiding section 252 is provided corresponding to the light source 210. As described above, in this embodiment, the two light sources 210 are arranged with a predetermined distance between them. Therefore, in this embodiment, the two light guiding sections 252 are provided with a distance equal to that between the light sources 210. In this embodiment, the light guiding sections 252 are arranged in parallel so that a distance corresponding to the width (length in the left-right direction) of the base section 132 is formed between the light guiding sections 252. The light guiding sections 252 are connected by a light guiding connecting section 254 on the side that serves as a light inlet. The light guiding connecting section 254 may have any appropriate shape, etc., as long as it can connect the light guiding sections 252. In this embodiment, the light guiding connecting section 254 is plate-shaped.

[0060] The engaging portion 256 is for engaging the guide portion 250 with the substrate 220. As described above, the engaged portion 224 is provided at the upper end of the substrate 220, and therefore the engaging portion 256 is adapted to engage with the engaged portion 224. Specifically, the engaging portion 256 is configured as a piece that extends from the light-guiding connecting portion 254 toward the substrate 220 and engages with the engaged portion 224 when the light-emitting unit 200 is assembled in the light-emitting unit arrangement portion 130.

[0061] The engaging portion 256 has a piece-like portion 256a that is inserted from the front side to the rear side into a rectangular cutout that forms the engaged portion 224, and an engaging protrusion 256b that protrudes from the tip side of the piece-like portion 256a in a direction intersecting the extension direction of the piece-like portion 256a. In this embodiment, the engaging portion 256 has engaging protrusions 256b, 256b protruding on both the left and right sides of the piece-like portion 256a. Therefore, the engaging portion 256 can engage the guide portion 250 with the substrate 220 by an engagement structure formed by inserting the piece-like portion 256a from the front side to the back side of the substrate 220 in the engaged portion 224 and engaging the engaging protrusions 256b, 256b on the back side of the substrate 220.

[0062] The guide section 250 is configured by connecting the light guide sections 252, 252 via a light guide connecting section 254 on the side that serves as a light inlet. The light guide connecting section 254 is plate-shaped. The light guide connecting section 254 is arranged so as to be in surface contact with the surface of the substrate 220 when the light-emitting unit 200 is assembled to the light-emitting unit mounting section 130. In this embodiment, the light guide connecting section 254 is arranged so as to be in surface contact with the surface of the substrate 220 while being sandwiched in the gap between the substrate 220, which is erected in the vertical direction, and the back surface of the base section 132, which is formed to extend in the vertical direction. Furthermore, the guide section 250 can be engaged with the substrate 220 by engaging the engaging section 256 with the engaged section 224 of the substrate 220 as described above. Therefore, the guide section 250 is positioned within the light-emitting unit mounting section 130 based on the substrate 220 and the light guide connecting section 254, which is arranged in surface contact with the substrate 220. Furthermore, when the light-emitting unit 200 is incorporated into the light-emitting unit mounting section 130, the base connection section 234 and the boss engagement section 240 of the cover 230 are disposed between the light-guiding sections 252, 252. As a result, the guide section 250 and the cover 230 are positioned relative to each other by the base connection section 234 and the boss engagement section 240 and are disposed in the light-emitting unit mounting section 130.

[0063] The fixture 260 is attached to the main body case 112 and the covering case 114 in the light-emitting unit arrangement section 130, thereby fixing the cover 230. The fixture 260 is configured by combining the protrusion 130b and the boss 130d described above. The fixture 260 can fix the cover 230 while positioning it by inserting a pin or screw forming the protrusion 130b into an insertion hole 236a provided in the protrusion engagement section 236 of the cover 230. Furthermore, the fixture 260 can fix the cover 230 while positioning it by inserting the boss 130d into a boss engagement hole 242 provided in the boss engagement section 240 of the cover 230 and engaging the protrusion 130b with the recess 130c.

[0064] <About effects, etc.> The effects and the like obtained by the above-described suction mouth unit 100 and the electric vacuum cleaner 1 equipped with the same will be described below.

[0065] [Suction mouth body 100 and electric vacuum cleaner 1 according to the first aspect of the present invention] A conventional floor suction tool for an electric vacuum cleaner is disclosed in Patent Document (JP 2010-148661 A). This floor suction tool has a suction port on the bottom of a main body case, and a rotating brush rotated by a drive source is disposed inside the main body case facing the suction port. This floor suction tool also has a lighting unit on the top of the main body case that illuminates the area ahead. The floor suction tool of the vacuum cleaner described in the above-mentioned patent document is configured with a flip-up shutter, and the lighting unit is provided at the top of the curved, upwardly convex shape of the main body case. With this configuration, there is a problem in that the lighting unit protrudes from the top, which hinders the miniaturization of the floor suction tool. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vacuum cleaner suction head body that can be made compact in a configuration that includes a light source, and a vacuum cleaner that includes the suction head body. (1-1) The suction port body 100 of the electric vacuum cleaner 1 has a curved portion 126 that is curved so as to be convex upward, and comprises a case body 110 having a suction port 120 on the bottom surface, a tube portion 150 that connects the suction source and the suction port 120 behind the curved portion 126, and a light source 210 that is arranged to irradiate light to the front side of the case body 110, characterized in that the light source 210 is located in front of the tube portion 150 and behind the top of the curved portion 126.

[0066] In the suction port body 100 of the above-described vacuum cleaner 1, the light source 210 is provided at a position rearward of the curved portion 126, which is curved so as to convex upward in the case body 110, and forward of the pipe portion 150, which is located rearward of the curved portion 126. This allows the suction port body 100 to provide the light source 210 by utilizing the space between the curved portion 126 and the pipe portion 150. Therefore, the suction port body 100 of the above-described embodiment makes it possible to provide the light source 210 while achieving a smaller size, compared to conventional configurations in which the light source 210 is provided so as to protrude from the top of the curved portion 126 or in which the light source 210 is provided forward of the curved portion 126.

[0067] (1-2) As described above, the suction port body 100 of the electric vacuum cleaner 1 according to (1-1) is characterized in that the case body 110 has the suction port 120 and includes a main case 112 that forms the suction space 116, and a covering case 114 that covers at least a part of the main case 112, and the light source 210 is arranged between the main case 112 and the covering case 114.

[0068] By configuring suction port body 100 as described above in (1-2), light source 210 can be provided without being exposed to the outside of main body case 112 and covering case 114 that form case body 110. This allows suction port body 100 to have light source 210 neatly arranged without being exposed to the outside.

[0069] (1-3) As described above, the suction mouth body 100 of the electric vacuum cleaner 1 according to (1-1) or (1-2) preferably has a suction space 116 and a communication section 140 that connects the tubular section 150 behind the suction space 116, and is characterized in that a light source 210 is disposed above the suction space 116.

[0070] By configuring the suction port body 100 as described above in (1-3), the light source 210 can be arranged by utilizing the space provided above the suction space 116, which is located forward of the communication section 140.

[0071] (1-4) As described above, the suction mouth body 100 of the electric vacuum cleaner 1 according to any one of (1-1) to (1-3) may be characterized in that the case body 110 has a base portion 132 behind the top of the curved portion 126, and the light-emitting unit 200 including the light source 210 is arranged on the base portion 132, so that the optical axis of the light source 210 is inclined so as to approach the bottom side.

[0072] By configuring suction port unit 100 as described above in (1-4), light source 210 is arranged behind the apex of curved section 126, and light can be generated from light source 210 from a position higher by the height of base section 132. Furthermore, in suction port unit 100, light source 210 is arranged so that the optical axis is inclined toward the bottom surface. Therefore, suction port unit 100 can irradiate light generated by light source 210 toward the bottom surface.

[0073] (1-5) As described above, the suction mouth body 100 of the electric vacuum cleaner 1 according to any one of (1-1) to (1-4) is preferably characterized in that the case body 110 has a base portion 132 rearward of the top of the curved portion 126, and the base portion 132 is positioned lower than the top.

[0074] By configuring the suction port body 100 as described above (1-5), it is possible to position the light source 210 as low as possible below the curved portion 126, while more reliably irradiating the light generated by the light source 210 toward the front side.

[0075] (1-6) As described above, the suction mouth body 100 of the vacuum cleaner 1 according to any one of (1-1) to (1-5) preferably includes a light-emitting unit 200 having a cover 230 that transmits light from the light source 210 and a guide portion 250 that guides the light from the light source 210 to the cover 230, and is characterized in that the light-emitting unit 200 is fixed to the case body 110 with the guide portion 250 sandwiched between the substrate 220 on which the light source 210 is arranged and the cover 230.

[0076] By configuring suction port unit 100 as described above in (1-6), guiding section 250 can reliably cause light generated by light source 210 to reach cover 230. This allows suction port unit 100 to reliably emit light generated by light source 210 from cover 230. Furthermore, suction port unit 100 is installed with guiding section 250 sandwiched and positioned between substrate 220 and cover 230. Therefore, suction port unit 100 can reliably guide light generated by light source 210 to cover 230.

[0077] (1-7) As described above, the suction mouth body 100 of the electric vacuum cleaner 1 according to any one of (1-1) to (1-6) may be as described in claim 5, characterized in that the guide portion 250 and the base plate 220 are fixed by an engagement structure.

[0078] By configuring suction port unit 100 as described above in (1-7), guide unit 250 can be positioned relative to substrate 220. Therefore, suction port unit 100 has high positioning accuracy between light source 210 arranged on substrate 220 and guide unit 250. This allows suction port unit 100 to reliably guide light generated by light source 210 using guide unit 250.

[0079] (1-8) As described above, the suction mouth body 100 of the electric vacuum cleaner 1 according to any one of (1-1) to (1-7) preferably comprises a rotary cleaning body 160 rotatably arranged in the suction space 116, a drive unit 170 that serves as a drive source for the rotary cleaning body 160, and a power transmission mechanism 180 that transmits a drive force from the drive unit 170 to the rotary cleaning body 160, and the covering case 114 preferably covers the power transmission mechanism 180.

[0080] By configuring the suction port body 100 as described above in (1-8), the light source 210 can be provided by utilizing the covering case 114 that covers the power transmission mechanism 180.

[0081] (1-9) As described above, the suction mouth body 100 of the electric vacuum cleaner 1 according to any one of (1-1) to (1-8) is preferably characterized in that a part of the case body 110 has a light-transmitting portion 134 that is translucent, and light from the light source 210 passes through the light-transmitting portion 134.

[0082] By configuring the suction port body 100 as described above in (1-9), the light generated by the light source 210 can be transmitted through the transmitting portion 134 of the case body 110, thereby illuminating the area ahead.

[0083] (1-10) The electric vacuum cleaner 1 is provided with the suction mouth body 100 according to any one of (1-1) to (1-9) described above.

[0084] The electric vacuum cleaner 1 includes the suction port body 100 described above, and therefore the suction port body 100 can be configured compactly while the light source 210 is provided in the suction port body 100.

[0085] [Suction mouth body 100 and electric vacuum cleaner 1 according to the second aspect of the present invention] The floor suction tool of the electric vacuum cleaner disclosed in JP 2010-148661 A is provided with an illumination unit that illuminates the area ahead. This floor suction tool is based on a structure with a flip-up shutter, and the illumination unit is provided above the main body case.

[0086] Here, the suction port body of the floor suction device of the above-mentioned conventional technology is a part that is easily subjected to external impacts when carrying or cleaning, and there is a concern that such impacts may cause the lighting unit to become loose or shift out of position.

[0087] Therefore, an object of the present invention is to realize an air intake body with a light-emitting unit that has improved impact resistance.

[0088] (2-1) The suction port body 100 of the electric vacuum cleaner 1 comprises a case body 110 having a suction port 120 on the bottom surface, a tube section 150 that connects the suction source and the suction port 120, and a light-emitting unit 200 arranged to irradiate light onto the front side of the case body 110, and is characterized in that the light-emitting unit 200 is fixed to the case body 110.

[0089] By configuring suction port body 100 as described above in (2-1), even if it receives an external impact when carrying or cleaning it, the impact is unlikely to cause problems such as the light emitting unit becoming detached. Therefore, by configuring suction port body 100 as described above in (2-1), it is possible to realize suction port body 100 with light emitting unit 200 that has improved impact resistance.

[0090] In the suction port body 100 according to the second aspect of the present invention, the case body 110 is not limited to a configuration in which the curved portion 126 is convex upward, but includes, for example, a configuration in which the upper surface of the case body 110 (main body case 112) is flat, or a configuration in which the case body 110 has an upper surface that tapers from the rear to the front. In the case of a configuration in which the case body 110 (main body case 112) has an upper surface that tapers from the rear to the front, if the drive unit 170 is provided diagonally rearward above the rotary cleaning body 160, the front-to-rear length of the rotary cleaning body 160 and the drive unit 170 can be shortened compared to a configuration in which the drive unit 170 is located directly behind the rotary cleaning body 160, and it becomes easier to tilt the optical axis of the light source 210 diagonally downward.

[0091] (2-2) As described above, in the suction mouth body 100 of the vacuum cleaner 1 according to (2-1), the light-emitting unit 200 preferably has a light source 210, a cover 230 that transmits light from the light source 210, and a guide portion 250 that guides the light from the light source 210 to the cover 230, and the light-emitting unit 200 is fixed to the case body 110 with the guide portion 250 sandwiched between the substrate 220 on which the light source 210 is arranged and the cover 230.

[0092] By configuring suction port unit 100 as described above in (2-2), guide unit 250 for guiding light generated by light source 210 is positioned by being sandwiched between substrate 220 and cover 230. This makes it less likely that guide unit 250 will become misaligned or fall off, even if suction port unit 100 is subjected to external impact when being carried or cleaned. Therefore, by configuring suction port unit 100 as described above in (2-2), it is possible to further improve the impact resistance of suction port unit 100.

[0093] Furthermore, suction port unit 100 can reliably guide light generated by light source 210 to cover 230. This makes it possible for suction port unit 100 to prevent poor light emission from occurring in cover 230 due to guiding section 250 falling off or being misaligned.

[0094] (2-3) As described above, the suction mouth body 100 of the vacuum cleaner 1 according to (2-1) or (2-2) may be characterized in that the guide portion 250 and the base plate 220 are fixed together by an engagement structure.

[0095] By configuring suction port body 100 as described above in (2-3), it is possible to arrange substrate 220 and guide portion 250 in a state where they are positioned relative to each other. This makes it possible to provide suction port body 100 with high impact resistance, making it difficult for substrate 220 and guide portion 250 to become misaligned, even if suction port body 100 is subjected to external impact when being carried or cleaned.

[0096] (2-4) As described above, the suction port body 100 of the electric vacuum cleaner 1 according to any one of (2-1) to (2-3) preferably includes a case body 110 having the suction port 120 and including a main case 112 that forms the suction space 116 and a covering case 114 that covers at least a part of the main case 112, and the cover 230 or the guide part 250 (the cover 230 in the above embodiment) has an insertion hole 236a, and the fixing device 260 (the protrusion 130b) is fixed to the covering case 114 from the main case 112 through the insertion hole 236a.

[0097] By configuring suction port unit 100 as described above in (2-4), it is possible to position cover 230 and guide unit 250 using insertion hole 236a as a reference. This makes it possible to make suction port unit 100 highly impact resistant, making it difficult for substrate 220 and guide unit 250 to become misaligned, even when subjected to an external impact. Note that in the above embodiment, a configuration was exemplified in which insertion hole 236a for inserting protrusion 130b constituting fixture 260 was provided in cover 230, but the present invention is not limited to this, and it is also possible for something equivalent to insertion hole 236a to be provided in guide unit 250.

[0098] (2-5) As described above, the suction mouth body 100 of the electric vacuum cleaner 1 according to any one of (2-1) to (2-4) is preferably characterized in that a part of the case body 110 has a light-transmitting portion 134, and light from the light-emitting unit 200 passes through the light-transmitting portion 134.

[0099] By configuring the suction port body 100 as described above in (2-5), the light generated by the light source 210 can be irradiated toward the front of the case body 110 through the transmission portion 134 that the case body 110 has.

[0100] (2-6) The electric vacuum cleaner 1 includes the suction mouth body 100 according to any one of (2-1) to (2-5) described above.

[0101] By configuring the vacuum cleaner 1 as described above in (2-6), the vacuum cleaner 1 can be made highly impact resistant and equipped with the suction mouth body 100 equipped with the light emitting unit 200.

[0102] In the suction port body 100 according to the first aspect of the present invention, the case body 110 is configured to have a curved portion 126 that is convex upward, but it is also possible to configure the drive unit 170 to be provided diagonally above the rear side of the rotating cleaning body 160, and to configure the case body 110 (main body case 112) so that its upper surface becomes lower from the rear side to the front side.

[0103] (3-1) That is, in order to solve the same problem as the first embodiment described above, the suction port body 100 of the third aspect of the present invention comprises a case body 110 having an upper surface that becomes lower from the rear side to the front side and having a suction port 120 on the bottom surface of the front side, a pipe section 150 that connects the suction source and the suction port 120, a light source 210 arranged to irradiate light on the front side of the case body 110, a rotating cleaning body 160 that is rotatably arranged on the case body 110, a drive unit 170A that serves as the drive source for the rotating cleaning body 160, and a power transmission mechanism that transmits driving force from the drive unit 170A to the rotating cleaning body, and the drive unit 170A is arranged diagonally above the rear side of the rotating cleaning body 160. This allows the front-to-rear length of the rotating cleaning body 160 and the drive unit 170A to be shorter compared to a configuration in which the drive unit 170 is located directly behind the rotating cleaning body 160, making it possible to make the suction port body 100 smaller while making it easier to tilt the optical axis of the light source 210 diagonally downward.

[0104] (3-2) Furthermore, the above (3-1) may have at least one of the above (1-2) to (1-3) and (1-6) to (1-9).

[0105] <<Variations>> The examples given in the above embodiment are merely examples of the present invention, and the configurations of (1-1) to (1-10) and (2-1) to (2-6) described above may be different from those given in the above embodiment without departing from the spirit of the present invention. Furthermore, the suction nozzle and vacuum cleaner of the present invention may be provided with other configurations in addition to or instead of the configurations included in (1-1) to (1-10) and (2-1) to (2-6) described above, or may be configured with some of the configurations omitted. Specifically, the following modifications are conceivable.

[0106] In the above-described embodiment, the light guiding section 252 of the guide section 250 has a path that extends linearly from one end to the other end, but the present invention is not limited to this. The guide section 250 may have a curved light path that extends from one end of the light guiding section 252 to the other end.

[0107] In the above-described embodiment, the configuration in which the cover 230 is fixed to the case body 110 has been exemplified, but the present invention is not limited to this. The guide portion 250 or the substrate 220 may be fixed to the case body 110.

[0108] In the above-described embodiment, a configuration in which guide portion 250 and substrate 220 are fixed by forming an engagement structure has been illustrated, but the present invention is not limited to this. For example, suction port body 100 may be configured such that guide portion 250 is fixed to substrate 220 using screws, adhesive, or the like.

[0109] The present invention is not limited to the above-described embodiments and modifications, and other embodiments may be possible within the scope of the claims, based on the teachings and spirit of the invention. The components of the above-described embodiments may be arbitrarily selected and combined. Furthermore, any component of the embodiment may be arbitrarily combined with any component described in the Summary of the Invention or any component embodying any component described in the Summary of the Invention. The present invention intends to obtain rights to these as well through amendments to this application or divisional applications, etc. [Industrial Applicability]

[0110] The present invention can be suitably used in general electric vacuum cleaners that are equipped with a suction mouth body. [Explanation of symbols]

[0111] 1: Vacuum cleaner 100: Suction port body 110: Case body 112: Main unit case 114: Covered case 116: Intake space 120: Inlet 126: Curved section 130b:Protrusion 132: Base 134:Transparent part 140: Communication section 150: Pipe section 160: Rotating cleaning body 170: Drive unit 180: Power transmission mechanism 200: Lighting unit 210 :Light source 220: Substrate 230: Cover 236a: Insertion hole 250: Information department 260: Fixtures

Claims

1. a case body having an intake port on the bottom surface; a pipe portion that connects a suction source and the suction port; a light-emitting unit arranged to irradiate light onto the front side of the case body, the light emitting unit is fixed to the case body, the light-emitting unit includes a light source, a cover that transmits light from the light source, and a guide portion that guides the light from the light source to the cover; the case body includes a main body case having the suction port and constituting a suction space, and a covering case covering at least a portion of the main body case, the cover or the guide portion has an insertion hole, and a fixing device is fixed to the covering case through the insertion hole from the main body case, The guide portion and the substrate are fixed by an engagement structure, the light source is mounted on the front surface side of the substrate; the substrate is erected with the light source facing forward, the main body case covers a region corresponding to the suction space, is formed to extend in the left-right direction, and has a curved portion that is curved in an arc shape so as to be convex upward in a side view, A suction head body of an electric vacuum cleaner, characterized in that the light source is located rearward of the apex of the curved portion.

2. A base portion is provided behind the top of the curved portion, The suction head body of the vacuum cleaner according to claim 1 , wherein the light emitting unit is supported by the base portion.

3. A plurality of the light sources are provided symmetrically with respect to the longitudinal center of the case body, the guide portion includes a plurality of light guide portions corresponding to the plurality of light sources, and a gap corresponding to a width of the base portion is formed between the light guide portions; The suction head body of the vacuum cleaner according to claim 2 , wherein a base connection portion of the cover connected to the base portion is disposed between the light guide portions.

4. a part of the case body has a light-transmitting portion having light-transmitting properties, 3. The suction head body of the vacuum cleaner according to claim 1, wherein light from the light emitting unit is transmitted through the transmission portion.

5. 3. The suction head body of the vacuum cleaner according to claim 1, wherein the light-emitting unit is fixed to the case body with the guide portion sandwiched between the board on which the light source is arranged and the cover.

6. An electric vacuum cleaner comprising the suction mouth body according to claim 1 or 2.

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