JP5452121B2 - A mouthpiece and a vacuum cleaner using the mouthpiece. - Google Patents

Description

  The present invention relates to a mouthpiece provided with a display device that displays an operation state and an operation mode, and a vacuum cleaner using the mouthpiece.

  The current mainstream vacuum cleaner has a structure called a canister type in which a vacuum cleaner body equipped with a dust collector and a floor suction body that sucks dust on the floor are connected by a suction pipe or suction hose. It is. The vacuum cleaner body of this conventional example includes a dust collector and a blower inside, and has a structure that can be freely moved via wheels. On the other hand, in order to clean the floor surface, the floor suction body is provided with a rotary cleaning body and its drive unit inside, and by rotating the rotary cleaning body, the floor surface dust is scraped up and removed. It has a structure to suck. Further, the floor suction body is attached to one end of a retractable suction pipe, and is connected to the cleaner body via a suction hose attached to the other end of the suction pipe. A hand handle is provided at the other end of the suction pipe, and the user can hold the hand handle so that the floor suction body and the cleaner body can be moved.

  The operation of these vacuum cleaners can be performed by selecting operation modes such as strong, medium, and weak using an operation switch provided on the hand handle. Moreover, although the state display of these driving | running states was generally provided in the vacuum cleaner main body, what was provided in the suction mouth has been proposed in recent years.

  For example, Japanese Patent Application Laid-Open No. 2009-17919 proposes a display device that is provided with display devices on both sides of a horizontally long body of the mouthpiece, and that displays the operation mode of the rotary brush motor according to the AC power supplied to the mouthpiece. ing.

JP 2009-17919 A JP-A-5-161579

In the conventional vacuum cleaner, since the cleaning work is performed while moving the suction body via the hand handle, it is said that providing the display device of the operation state of this vacuum cleaner on the suction body is excellent in visibility. be able to. Further, in the conventional example, the display device is one contraposed kicking it, to enhance the visibility by increasing the display area.

  In the conventional vacuum cleaner, the hand handle and the suction body are connected via the extension pipe, so that the cleaning operation can be performed in an easy standing posture without forcing the user into an unreasonable posture. In this case, since the distance between the mouthpiece and the user's eyes is about 1.5 m, it is desirable that the display device provided on the mouthpiece has a large area.

  However, since the mouthpiece itself has a structure that forms a dust passage, an attempt to provide a large display device leads to an increase in the size of the device. For example, in the conventional example, the same display device is provided separately on the right and left sides, thereby increasing the display area and improving the design. However, according to this conventional example, the number of parts increases. Further, if only one side is used, the display area is reduced and the visibility is lowered, and there is a concern that the design property is lowered due to an asymmetric design that is offset toward one side.

  Accordingly, an object of the present invention is to provide a mouthpiece provided with a large display device having good visibility and excellent design, and a vacuum cleaner using the mouthpiece.

In order to solve the above-mentioned problems, a suction body of a vacuum cleaner according to the present invention and a vacuum cleaner including the suction body are connected to a suction body having a suction port for sucking dust and the suction body. It is connected to the pipe and always operates so that the bottom surface of the suction body comes into contact with the floor in response to the movement of the hand handle transmitted through the connection pipe, and the air flow including dust sucked from the suction body is connected to the connection pipe. A free connecting portion that communicates with the lower arm portion, and the lower connecting portion includes a tubular lower arm portion and a tubular upper arm portion. is rotatably connected to the front Symbol suction body via a rotational shaft portion, the other end is rotatably connected through one end and a second rotating shaft portion of the upper arm, and the first rotation shaft The second rotation shaft portion is disposed in parallel with the longitudinal direction of the suction body. Rights rotation axis or, with one of the vertical axis of rotation perpendicular to the horizontal rotational axis, relative to said suction port body, the lower arm portion or the upper arm for rotation through the horizontal rotary shaft, the front portion The display device includes a display substrate including a light source unit, and a light guide unit that diffuses light from the light source unit .

  According to the present invention, the light guide portion can be disposed on the cover member of the upper arm portion or the lower arm portion that rotates in the vertical direction with respect to the mouthpiece body, so that the air flow including dust can be visually recognized without being obstructed. A large-sized display device having good properties and excellent design properties can be arranged.

It is the schematic of the vacuum cleaner which concerns on 1st Example. It is an internal structure of the vacuum cleaner which concerns on 1st Example. It is a structural diagram of the mouthpiece according to the first embodiment. It is a component expanded view of the lower arm part of the mouthpiece which concerns on 1st Example. It is the schematic of the display apparatus of the suction mouth which concerns on 1st Example. It is a use condition figure of the vacuum cleaner concerning a 1st example. It is a structural diagram of the mouthpiece according to the second embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. Here, FIGS. 1 to 6 show the first embodiment, and FIG. 7 shows the second embodiment. In addition, the same site | part, an arrow, etc. are shown with the same code | symbol, and the overlapping description is abbreviate | omitted.
(First embodiment)
1 to 5 show a vacuum cleaner according to a first embodiment. Here, FIG. 1 is a schematic view of the vacuum cleaner according to the first embodiment. FIG. 2 shows the internal structure of the vacuum cleaner according to the first embodiment.
FIGS. 3A and 3B are structural views of the mouthpiece according to the first embodiment, in which FIG. 3A is a central longitudinal sectional view and FIG. 3B is an external perspective view. FIG. 4 is a part development view of the lower arm portion of the mouthpiece according to the first embodiment. 5A and 5B are schematic views of the mouthpiece display device according to the first embodiment, in which FIG. 5A is a configuration diagram of an operation state display unit, and FIG. 5B is a reflection path diagram. FIG. 6 is a diagram illustrating a usage state of the vacuum cleaner according to the first embodiment.

First, a schematic structure of an electric vacuum cleaner according to this embodiment will be described with reference to FIG. Here, FIG. 1, the overall appearance view of an electric vacuum cleaner, in the balloon, a cross sectional view of a perspective view and a lower arm portion of the suction body. Reference numeral 1 generally indicates an entire vacuum cleaner, and a vacuum cleaner body 100 having a mechanism (not shown) for sucking dust, for example, a blower, and one end thereof is attached to the vacuum cleaner body 100. A flexible suction hose 200 communicating with the blower, a hand handle 300 attached to the other end of the suction hose 200 and communicating with the blower, and attached to the hand handle 300 and communicating with the suction hose 200 Connecting pipe 400, and a suction body 500 attached to the connecting pipe 400 and communicating with the connecting pipe 400.

  The vacuum cleaner main body 100 includes a dust collection chamber having a disposable dust bag inside, and can be moved by the pair of large wheels 101 and one universal wheel 102 via the suction hose 200.

  The suction hose 200 has a function as a conveyance path for conveying dust to the electric vacuum cleaner main body 100 and a function as a moving pulling means for moving the electric vacuum cleaner main body 100.

  The hand handle 300 has a function of communicating the suction hose 200 and the connecting pipe 400, a function of operating the vacuum cleaner body 100, a function of moving the vacuum cleaner body 100, and a function of operating the movement of the mouthpiece 500. I have. The hand handle 300 is detachably connected to the suction hose 200, and is also detachably attached to the connection tube 400, thereby connecting the suction hose 200 and the connection tube 400 to form a dust conveyance path. .

  Further, the hand handle 300 is formed in the longitudinal direction of the connecting pipe 400, that is, at the upper end on the extension line of the central axis of the connecting pipe 400, with a predetermined angle (an angle of about 100 degrees to 120 degrees) with the central axis. . The handle portion 301 is provided at a position where the longitudinal axis substantially coincides with the connection direction between the suction hose 200 and the connection pipe 400. With this handle portion 301, the vacuum cleaner main body 100 can be moved via the suction hose 200, and the movement of the mouthpiece 500 can be manipulated. In particular, according to the handle portion 301, a twisting operation, that is, rotation around the central axis can be easily performed. Further, an operation unit 302 for operating the electric vacuum cleaner main body 100 is provided in the vicinity of the handle unit 301.

  In addition, the hand handle 300 is provided with an operation unit 302 that can select and operate an operation mode such as strong, medium, and weak, and that is incorporated in the mouthpiece 500 and has a rotating brush 512 shown in FIG. The brush drive unit 513 detects the rotational load and is connected via a belt to detect the floor quality and automatically switches the operation mode such as strong, medium, and weak.

  The connecting pipe 400 allows the hand handle 300 and the mouthpiece 500 to communicate with each other, and further fixes the hand handle 300 and the mouthpiece 500 at a predetermined position, thereby controlling the movement (movement and rotation) of the hand handle 300. It has a function to transmit the movement (movement or rotation). In this embodiment, by combining two pipe bodies 401 and 402 having different sizes, the connecting pipe 400 is configured to be stretchable so as to be fixed at a predetermined length, and the hand handle 300 is provided on one side. On the other hand, the mouthpiece 500 is detachably attached.

  Note that the suction body 500 may be directly attached to the hand handle 300 without combining the connection pipe 400.

  The suction body 500 shown in the blowout is composed of a suction body 510 having a suction port 511 for sucking dust on the bottom surface, and a universal connecting portion 550 that connects the suction body 510 to the connection pipe 400. The universal connecting portion 550 always operates so that the bottom surface of the mouthpiece main body 510 is in contact with the floor surface in response to the movement of the hand handle 300 transmitted through the connecting pipe 400, and includes dust sucked from the mouthpiece main body 510. The air flow is communicated so as to be guided to the connecting pipe 400.

  In this embodiment, the suction body 510 is formed in a horizontally long shape, and a rotary brush (rotary cleaning body) 512 for sucking in dust on the floor surface is provided in the suction body 510, and a part of this rotary brush 512 is suctioned. It arrange | positions so that it may expose from the opening | mouth 511. FIG. On the other hand, the universal connection part 550 is attached to the rear of the center of the suction body 510 in the longitudinal direction.

  The universal connecting portion 550 of this embodiment includes a tubular lower arm portion 560 and a tubular upper arm portion 580. The lower arm portion 560 has one end in the longitudinal direction parallel to the longitudinal direction of the mouthpiece body 510. The other end is rotatably connected to the upper arm 580 via a vertical rotation axis P2 orthogonal to the horizontal rotation axis P1. . That is, the lower arm portion 560 rotates in the elevation direction Y via the horizontal rotation axis P1, and the upper arm portion 580 rotates in the left-right direction X via the vertical rotation axis P2. According to this structure, the rotation of the twisting operation of the hand handle 300 can be directly transmitted to the rotation of the mouthpiece body 510.

  Here, in the present embodiment, the angle in the elevation direction Y is set so as to be operable within a range of about 90 degrees from the floor and about 180 degrees in the left-right direction X. As described above, in this embodiment, the operation of the mouthpiece 500 through the hand handle 300, for example, the rotation of the twisting action of the hand handle 300 can be directly used as the rotation of the mouthpiece 500. The operation performed at 300 can be performed smoothly as the movement of the mouthpiece 500.

  And one of the big features of the vacuum cleaner 1 according to this embodiment is that the lower arm 560 or the upper arm 580 that rotates in the height direction Y with respect to the suction body 510 via the horizontal rotation axis P1. The large operating state display unit 600 is provided on the front surface.

  That is, in this type of vacuum cleaner called a canister type, the hand handle 300 and the mouthpiece 500 are connected via the extension pipe 400, so that the user is not forced to take an unreasonable posture and can stand in an easy standing posture. Cleaning work can be performed. Then, the user selects the operation mode such as strong, medium, and weak by operating the operation unit 302 provided on the hand handle 300 according to the dust collection state while gazing at the suction body 500 and surrounding dust. Can be operated.

  Therefore, if the operating state display part 600 which can confirm this driving | running state is provided in the suction mouth body 500, the user can perform a cleaning operation | work, without performing eyes movement. In addition, in this embodiment, since the operation mode is set corresponding to the floor surface, the automatically set operation mode can be confirmed without performing eye movement. However, since the distance between the mouthpiece 500 and the user's eyes is about 1.5 m, it is desirable that the operation state display unit 600 provided in the mouthpiece 500 has a large area with good visibility.

  However, since the shape of the mouthpiece 500 itself constitutes a dust passage, if the large operating state display unit 600 is provided, the apparatus becomes large. Therefore, as shown in a cross-sectional view of the lower arm portion 560 in the blowout, the inventors communicate a pair of arm portions (lower arm portion 560, upper arm portion 580) of the universal connecting portion 550 without air leakage. It paid attention to the point comprised by the casing member 561 and the cover member 562 which covers the outer side of this casing member 561.

  That is, the casing member 561 made of a resin material has a plurality of ribs having unevenness not shown on the outside in order to communicate with other connecting parts without air leakage and with rotation and strength. Etc. are necessary. For this reason, in order to hide these several ribs etc. and to improve the designability and cleanability, it is set as the structure which covers the outer side of the casing member 561 with the cover member 562. FIG. In addition, since the cover member 562 mainly has an appearance protection function, the surface thereof can be used as the arrangement surface 563 of the large-sized operation state display unit 600. In addition, since the cover member 562 covers a plurality of uneven ribs and the like, it is easy to secure a space for arranging the display substrate 565 including the light source unit 564 between the cover member 561 and the casing member 561.

  Further, in the case of the free connecting portion 550 including a pair of arm portions (lower arm portion 560 and upper arm portion 580), each arm portion performs various movements by operating the hand handle 300. However, the present inventors can easily see the front part of the arm part rotating in the height direction Y through the horizontal rotation axis P1 from the cleaning posture of the user holding the hand handle 300 and in a large driving state. It was noted that a wide arrangement surface 563 for arranging the display unit 600 can be easily taken.

  Therefore, in this embodiment, the casing member 561 that communicates the lower arm portion 560 or the upper arm portion 580 that rotates with the horizontal rotation axis P1 with respect to the suction body 510 without air leakage, and the casing member 561. It includes a cover member 562 that covers the outside, and a display substrate 565 that includes a light source unit 564 disposed between the cover member 562 and the casing member 561, and the cover member 562 includes a light source unit 564. The light guide unit 566 that diffuses light is provided. Thus, the mouthpiece 500 including the operation state display unit (large display device) 600 having good visibility and excellent design is realized without obstructing the air flow containing dust.

  Next, with reference to FIG. 2 to FIG. 6, the mouthpiece 500 having the characteristic structure of the electric vacuum cleaner 1 will be described in more detail.

  First, the internal structure of the vacuum cleaner 1 according to this embodiment will be described with reference to FIG. As described above, the vacuum cleaner 1 of this embodiment includes a movable vacuum cleaner main body 100 provided with a dust collecting device 120 and a suction body 500 for sucking dust in a tubular shape provided with a ventilation path therein. By connecting the connecting pipe 400, the hand handle 300 and the suction hose 200, the dust taken in by the suction body 500 is taken into the dust collecting device 120 of the cleaner body 100.

  In the vacuum cleaner main body 100 of this embodiment, the interior of the housing 110 is divided into a dust collection chamber 111 and a drive chamber 112 through a partition wall 113. The partition wall 113 includes a ventilation port 114 that allows the dust collection chamber 111 and the drive chamber 112 to communicate with each other. A dust collecting device 120 is disposed in the dust collecting chamber 111, and a blower device 140, a cord reel device 130, and a control board 150 are disposed in the drive chamber 112.

  In this embodiment, the dust collecting device 120 includes a disposable dust collecting bag 121 and a dust collecting filter 122 provided so as to cover the ventilation port 114. The disposable dust collection bag 121 is set in the dust collection chamber 111 so that its inlet is attached to a hose attachment port 115 formed in the dust collection chamber 111. On the other hand, the air blower 140 and the cord reel device 130 are arranged up and down in the drive chamber 112, and the control board 150 including an operation switch is arranged above the air blower 140. In this embodiment, when the air blower 140 is driven, the air blower 140 takes in an air flow from which dust is removed, cools itself, and discharges it into the drive chamber 112. The discharged air flow is guided to the control board 150 and the cord reel device 130 through a ventilation path (not shown), and is cooled and then exhausted from an exhaust port 116 formed on the back surface side of the drive chamber 112.

  Here, in this embodiment, the dust collecting device 120 has been described as adopting the disposable dust collecting bag 121. However, instead of the disposable dust collecting bag 121, a cyclone that removes dust from the air flow by vortex is used. You may employ | adopt the dust collector 120 called. Further, a second dust collecting filter for removing fine dust may be provided in a ventilation path (not shown) in the drive chamber 112.

  In this embodiment, the vacuum cleaner main body 100 can be operated by pulling the cord from the cord reel device 130 and connecting it to the household wiring. Therefore, the vacuum cleaner main body 100 can operate / control the blower 140 and the control board 150 with the power source taken in from the home wiring. On the other hand, in this embodiment, the suction body 500 is provided with a brush drive unit 513 for rotating the rotating brush 512 and an operation state display unit 600, and the hand handle 300 is provided with an operation unit 302. Therefore, a cord 250 that supplies power to the brush drive unit 513 and the operation unit 302 and transmits and receives control signals is wired to the suction hose 200, the operation state display unit 600, the hand handle 300, and the connection pipe 400. These cords 250 are structured to be electrically connected by connecting the suction hose 200, the hand handle 300, and the connecting pipe 400.

  According to the vacuum cleaner 1, when the power supply is turned on by operating the operation unit 302 of the hand handle 300, the air blower 140 is driven and an air flow including dust is taken into the dust collector 120 from the suction body 500. be able to. In this ON state, since the rotary brush 512 can be driven by the brush drive unit 513, the dust on the floor surface scraped up by the rotary brush 512 is taken into the mouthpiece 500, and the connecting pipe 400 and the handle on the hand are taken. It can be taken into the dust collector 120 via 300 and the suction hose 200. Further, in this embodiment, the operation number of the rotary brush 512 and the blower 140 can be controlled by operating the operation unit 302, and the operation state can be confirmed by the operation state display unit 600 provided in the mouthpiece 500. . In this embodiment, almost all dust is taken in by the dust bag 121, and the fine dust left behind can be removed by the dust filter 122.

  Next, the structure of the mouthpiece 500 will be further described with reference to FIG. Here, FIG. 3A is a central longitudinal sectional view of the mouthpiece, and FIG. 3B shows an external perspective view of the mouthpiece.

  In the figure, a suction body 500 according to this embodiment is composed of a suction body 510 having a rotating brush 512 and a free connecting portion 550 for connecting the suction body 510 to a connection pipe 400 so that the angle of the suction body 510 can be changed. The universal connection portion 550 includes a tubular lower arm portion 560 and a tubular upper arm portion 580. The lower arm 560 is connected at one end to the tubular body via the suction mouth main body 510 via the Y-axis rotation connecting portion 567 and at the other end to one end of the tubular upper arm 580 via the X-axis rotation connecting portion 568. . Further, the other end of the tubular upper arm 580 is structured to be connectable to the connection pipe 400.

  The X-axis rotation connecting portion 568 is connected so as to be rotatable around the vertical rotation axis P2 so as not to leak air, and the Y-axis rotation connecting portion 567 is connected to a horizontal rotation axis P1 orthogonal to the vertical rotation axis P2. It is connected to the mouthpiece body 510 so that there is no air leakage at the center.

  In this embodiment, the horizontal rotation axis P1 is a rotation axis parallel to the longitudinal direction of the mouthpiece main body 510, so that rotation in the height direction Y is possible, and the vertical rotation axis P2 orthogonal to the horizontal rotation axis P1 is used in the horizontal direction. X rotation is possible. By connecting the suction mouth main body 510 and the suction mouth body 500 via the universal connection portion 550 having the two rotation axes P1 and P2 orthogonal to each other, the hand suction handle 300 is twisted to move the suction mouth main body 510 to the floor surface ( The suction body 510 and the connection pipe 400 can communicate with each other without air leakage. Further, the cord 250 is wired through the two Y-axis rotation connection portions 567 and the X-axis rotation connection portion 568.

  In this embodiment, in order to realize the above-described structure, a connecting base portion 514 projecting upward and rearward is formed in the rear center portion of the horizontally long and flat suction mouth main body 510. The front part above the connection base part 514 is formed in a large round shape so as to be gently continuous with the flat upper surface of the suction mouth main body 510. On the other hand, a concave bearing portion 516 having an opening portion 515 communicating with the tubular lower arm portion 560 is formed in the rear portion above the coupling base portion 514. On the inner wall surfaces on both sides of the bearing portion 516, a Y-rotating bearing portion 517 for supporting the lower arm portion 560 so as to be rotatable on both sides is formed. This Y rotation bearing portion 517 constitutes a horizontal rotation axis P1.

  On the other hand, on both sides of one end of the tubular lower arm portion 560, a Y rotating shaft portion 569 (see FIG. 4) that is rotatably supported by the Y rotating bearing portion 517 is formed. One end of the lower arm portion 560 and the concave bearing portion 516 include a pair of Y rotation shaft portions 569 attached to a pair of Y rotation bearing portions 517 to form a Y axis rotation connection portion 567, and the lower arm portion 560 is Even if it rotates, it connects so that there may be no air leak from a mutual contact part.

  Further, the tubular lower arm portion 560 and the tubular upper arm portion 580 are rotatably coupled via a circular sliding surface Q1 orthogonal to the vertical rotation axis P2. In this embodiment, one of the tubular end portions of the lower arm portion 560 and the upper arm portion 580 is an X-axis rotary bearing portion 518 having a circular hole shape, and the other tube outer periphery has an X-axis rotary shaft portion 519 having a convex shape. The X-axis rotary shaft portion 519 is configured to be rotatably fitted to the circular hole-shaped X-axis rotary bearing portion 518 so that the air is not leaked along the sliding surface Q1. A shaft rotation connecting portion 568 is configured.

  In addition, the horizontally long thin flat mouthpiece 500 is formed with a brush chamber 520 that houses the rotating brush 512 at the front, and a brush drive 513 and a brush drive switch 521 are arranged at the rear thereof. The rotating brush 512 is detachably attached to the brush chamber 520 and is connected to the brush driving unit 513 through a belt.

  The brush drive switch 521 includes wheels, and is attached via a spring or the like (not shown) so that the wheels always protrude from the bottom surface of the mouthpiece body 510. The brush drive switch 521 turns off the rotation of the rotating brush 512 when the wheel is protruding, and turns on the rotation of the rotating brush 512 when the wheel touches the floor or the like and is stored in the mouthpiece body 510. State. Therefore, in this embodiment, the cleaning of the floor surface can be performed while rotating the rotating brush 512, while the rotation of the rotating brush 512 can be stopped by the brush drive switch 521 when the suction body 500 is released from the floor surface.

  A large wheel 522 is provided at the rear end portion of the connecting base portion 514, and the suction port 511 receives the stress of the forward / backward movement and the rotation operation operated by the hand handle 300 via the large wheel 522. The bottom surface of the mouthpiece main body 510 provided with is closely attached to the floor surface, so that the operation performance of the mouthpiece 500 is improved.

  In addition, the inlet body 510 of this embodiment is provided with an open / close flap portion 523 that controls the amount of intake air from the upper surface on both sides of the upper surface, thereby stabilizing the flow of intake air in the brush chamber 520 and increasing the suction force. ing. Further, the opening / closing flap portion 523 can suck dust drifting on the floor.

  Next, with reference to FIG. 4 and FIG. 5, the structure of the universal connection part 550 provided with the driving | running state display part 600 is further demonstrated.

  In FIG. 4, the lower arm portion 560 of this embodiment includes a cover member 562 that covers the exterior of the casing member 561, which includes a front cover 562a and a rear cover 562b. The casing member 561 is a cylindrical resin molded product whose cross-sectional shape is formed in a horizontally long shape. A Y rotation shaft portion 569 is provided on both sides of one end of the casing member 561, and an X having a sliding surface Q1 on the other end. A shaft rotation bearing portion 518 or an X axis rotation shaft portion 519 is formed.

  Further, in this embodiment, the front cover 562a is a thick resin molded product having a peripheral side surface, and the rear cover 562b is a thin resin molded product covering the back (lower part in the drawing) of the front cover 562a. . The space formed by the front cover 562a and the rear cover 562b includes a casing member 561 and the like.

  That is, the front cover 562a forms a semicircular opening 570 that opens downward (on the left side in the drawing) on a flat arrangement surface 563 constituting the front surface thereof. A light guide portion 566 provided with a C-shaped light guide path 566a is fitted and attached to the semicircular opening portion 570 from the outside using the elasticity of the resin so that a part of the light guide portion wraps. And the light guide part 566 attached to the front part cover 562a is hold | maintained from the inner side with the holding member 571, the casing member 561 is further attached, and also the rear cover 562b is attached. In assembly, after attaching the holding member 571 to the front cover 562a, further attaching the casing member 561, and further attaching the rear cover 562b, the light guide part 566 is installed in the semicircular opening 570 of the front cover 562a. It is structured to be fitted and attached from the outside so that a part of it wraps.

  Here, the light guide part 566 has a structure in which a transparent thin disk-like inner peripheral portion projects inward in a C shape to form a light guide path 566a, and the light guide path 566a is formed on the front cover 562a. It fits into the opening 570 and is held by a holding member 571 from the inside. And the holding member 571 is made into the shape which hold | maintains only the one side containing the C-shaped light guide way 566a of the light guide part 566. FIG. Thereby, a space is formed between the front cover 562a on the side of the suction mouth main body 510 where the opening 570 is not formed and the casing member 561, and the display substrate 565 including the light source unit 564 is disposed in this space.

  The operation state display unit 600 including the display substrate 565 and the light guide unit 566 will be further described with reference to FIG. In FIG. 5, the light guide portion 566 forms a light guide path 566 a by forming a thick portion that protrudes downward in a C-shape from the outer peripheral portion on the back side (inside) of the disk-shaped transparent resin member. Yes. Then, according to the structure of this embodiment, the display substrate 565 is disposed in a portion where the thickness is thin. The display substrate 565 is provided with a pair of light source portions 564 made of LEDs, and the pair of light source portions 564 corresponds to the pair of end surfaces 572 of the thick portion (the light guide path 566a) of the light guide portion 566. Placed in. On the other hand, a reflection member (not shown) is formed or disposed on the back surface side (inner surface) of the light guide path 566a.

  Therefore, according to this structure, the light emitted from the pair of light source units 564 enters the light guide unit 566 (light guide path 566a) from the pair of end surface 572, and moves toward the tip along the C-shape. The entire C-shaped thick portion can be shined by being diffusely reflected by the reflecting member. In this embodiment, the light emission source 564 may be composed of a single color LED, or may be composed of a multicolor LED or a plurality of LEDs having different colors.

  The operation state display unit 600 according to this embodiment can change the color of the light source unit 564 or change the intensity of light corresponding to the operation mode including strong, medium, and weak. Thereby, a user can be made to recognize the change of a driving mode visually. In addition, since the light to be recognized is C-shaped, the user can be recognized as a large display even if the light emitting surface is small, so that the visibility can be improved.

  Returning to FIG. 4, in this way, the lower arm portion 560 of this embodiment has the casing member 561 disposed in the space formed by the front cover 562a and the rear cover 562b, and the casing member 561 and the front cover 562a. A display substrate 565 including a light guide portion 566, a holding member 571, and a light source portion 564 is disposed between the display substrate 565 and the display substrate 565. The front cover 562a and the rear cover 562b are attached to the front cover 562a via attachment ribs 573 formed on the rear cover 562b or via screws (not shown).

  The rear cover 562b also has a function of connecting the lower arm portion 560 and the upper arm portion 580 via the X-axis rotary bearing portion 518 and the X-axis rotary shaft portion 519. The upper arm portion 580 is also composed of a casing and a cover member that covers the outside, similarly to the lower collar portion 560, but the description thereof is omitted here.

  Next, with reference to FIG. 1 and FIG. 6, the usage method of the vacuum cleaner 1 which concerns on this Example is demonstrated. FIG. 6 shows a very general cleaning posture for cleaning the floor surface. In FIG. 6, the user holds the hand handle 300 and performs a cleaning operation by moving the mouthpiece 500 connected to the hand handle 300 via the connection pipe 400. This main movement is a movement for moving the mouthpiece 500 in the front-rear direction with respect to the floor surface. In this movement in the front-rear direction, the lower arm 560 provided with the driving state display unit 600 moves in the height direction Y so that the arrangement surface 563 is directed toward the user side. Thereby, it is easy to visually recognize the driving state display unit 600 from the user.

  Further, in FIG. 1, the operation state display unit 600 operates so as to stand in the vertical direction Y, that is, to place the placement surface 563 up or to lie down with the placement surface 563 as an upper surface. The entire upper part of the ring-shaped light guide part 566 provided on the front surface of the arm part 560 can emit light corresponding to the operation mode. For this reason, the user can easily grasp the operation mode visually. In this embodiment, since a logo, a model, or the like can be provided in the center of the ring-shaped light guide 566, the operation state display unit 600 can be used as a product identification unit.

In this embodiment, the driving state display unit 600 is provided on the front surface of the lower arm unit 560 in consideration of the fact that the upper arm unit 580 is connected to the rear side of the lower arm unit 560, but the lower arm unit 560 is provided. In the structure in which the upper arm portion 580 is connected on the front side, an operation state display portion 600 is preferably provided on the front surface of the upper arm portion 580.
(Second embodiment)
Next, the suction body 501 according to the second embodiment will be described with reference to FIG. The universal connection portion 550a of the mouthpiece 501 is composed of a tubular lower arm portion 560a and a tubular upper arm portion 580a. The lower arm portion 560a rotates in the left-right direction X, and the upper arm portion 580a rotates in the height direction Y. It has a structure to perform.

  That is, the lower arm portion 560a of the universal connection portion 550a is rotatably connected to the upper arm portion 580a at one end in the longitudinal direction via a horizontal rotation axis P1 disposed in parallel with the longitudinal direction of the suction mouth main body 510. The other end has a structure that is rotatably connected to the inlet body 510 via a vertical rotation axis P2 orthogonal to the horizontal rotation axis P1.

  Specifically, a vertical rotation axis P2 orthogonal to the longitudinal direction is formed at the center rear in the longitudinal direction of the horizontally elongated mouthpiece 510, and the lower arm portion 560a is formed to be rotatable around the vertical rotation axis P2. . In this embodiment, the lower arm 560a is rotatably attached to the suction mouth body 510 so that the tube axis of the tubular lower arm 560a coincides with the vertical rotation axis P2. This connection structure is the same as that of the X-axis rotation connection part 568 of the first embodiment. On the other hand, the other end of the lower arm portion 560a is attached to the upper arm portion 580 so as to be rotatable in the height direction Y via a horizontal rotation axis P1 parallel to the longitudinal direction of the mouthpiece 510. The structure of this connecting portion is the same as that of the Y rotating shaft portion 569 of the first embodiment.

  And in the universal connection part 550a provided with such a structure, the driving | running state display part 600 is provided in the upper arm part 580a. Specifically, as in the first embodiment, the upper arm 580a communicates with the casing member without air leakage, the cover member covering the outside of the casing member, and the light source unit disposed between the casing members. A light guide portion 564 that diffuses light from the light source portion is provided on the cover member.

  In this embodiment, the same effect as that of the first embodiment can be obtained.

DESCRIPTION OF SYMBOLS 100 ... Vacuum cleaner main body, 101 ... Large wheel, 102 ... Swivel wheel, 100 ... Housing, 111 ... Dust collection chamber, 112 ... Driving chamber, 113 ... Partition wall, 114 ... Ventilation port, 115 ... Hose attachment port, 116 ... Exhaust Mouth, 120 ... dust collecting device, 121 ... dust collecting bag, 122 ... dust collecting filter, 130 ... cord reel device, 140 ... air blower, 150 ... control board, 200 ... suction hose, 250 ... cord, 300 ... hand handle, DESCRIPTION OF SYMBOLS 301 ... Handle part, 302 ... Operation part, 400 ... Connection pipe, 401, 402 ... Tube, 500 ... Suction body, 510 ... Suction body, 511 ... Suction port, 512 ... Rotating brush (rotating cleaning body), 513 ... Brush Drive unit, 514... Connecting base part, 515... Opening part, 516... Bearing part, 517... Y rotation bearing part, 518 ... X axis rotation bearing part, 519. ... brush drive switch, 522 ... large wheel, 523 ... open / close flap part, 550 ... free connecting part, 560 ... lower arm part, 561 ... casing member, 562 ... cover member, 562a ... front cover, 562b ... rear cover, 563 ... placement surface, 564 ... light source part, 565 ... display substrate, 566 ... light guide part, 566a ... light guide path, 567 ... Y axis rotation connection part, 568 ... X axis rotation connection part, 569 ... Y rotation axis part, 570 ... Opening part, 571 ... Holding member, 572 ... End face, 573 ... Mounting rib, 580 ... Upper arm part, 600 ... Operating state display part, P1 ... Horizontal rotating shaft, P2 ... Vertical rotating shaft, Y ... Height direction, X ... Left and right direction, Q1 ... sliding surface

Claims (8)

A suction body with a suction port on the bottom for sucking in dust, and a suction body connected to the connecting pipe,
Operates so that the bottom surface of the mouthpiece body is always in contact with the floor surface in response to the movement of the hand handle transmitted through the connecting pipe, and the air flow including dust sucked from the mouthpiece body is guided to the connecting pipe. It is composed of a free connecting part that communicates,
The universal connection part is composed of a tubular lower arm part and a tubular upper arm part,
The lower arm portion, the longitudinal end, is rotatably connected to the front Symbol suction body via the first rotation shaft, the other end is through the one end and the second rotation shaft portion of the upper arm Connected to be rotatable,
The first rotating shaft portion and the second rotating shaft portion include one of a horizontal rotating shaft disposed in parallel with the longitudinal direction of the suction mouth body or a vertical rotating shaft orthogonal to the horizontal rotating shaft,
With respect to the suction port body, the lower arm portion or the upper arm for rotation through the horizontal rotary shaft is provided with a display device provided on the front face,
The mouthpiece for a vacuum cleaner , wherein the display device includes a display substrate including a light source unit, and a light guide unit that diffuses light from the light source unit . In the suction mouth for vacuum cleaners of Claim 1,
The lower arm portion or the upper arm portion includes a casing member for communicating without leakage air, and a cover member for covering the front portion of the casing member, and the display substrate that is disposed between the cover member and the casing member, A suction mouth for a vacuum cleaner , comprising: the light guide portion provided on the cover member . In the suction mouth for vacuum cleaners of Claim 1,
The lower arm portion is rotatably connected to the suction mouth body at one end in the longitudinal direction thereof via a horizontal rotation shaft disposed in parallel with the longitudinal direction of the suction mouth body, and the other end is connected to the horizontal rotation shaft. Is rotatably connected to the upper arm through a vertical rotation axis orthogonal to
The lower arm portion includes a casing member for communicating without leakage air, and a cover member for covering the front portion of the casing member, and the display substrate that is disposed between the cover member and the casing member, said cover member An inlet for a vacuum cleaner , comprising: the light guide portion provided . In mouthpiece for electric vacuum cleaner according to claim 1,
The lower arm portion is rotatably connected at one end in the longitudinal direction thereof to the upper arm portion via a horizontal rotation shaft disposed in parallel with the longitudinal direction of the suction body, and the other end is connected to the horizontal rotation shaft. It is rotatably connected to the suction mouth body through an orthogonal vertical rotation axis,
The upper arm portion is provided in the casing member that communicates without air leakage, a cover member that covers a front portion of the casing member, the display substrate that is disposed between the casing member and the cover member, and the cover member An inlet for a vacuum cleaner , comprising: the light guide portion described above . In the mouthpiece for vacuum cleaners in any one of Claim 2 to 4,
The mouthpiece body for the vacuum cleaner , wherein the mouthpiece main body has the universal connecting portion attached to the rear in the center in the longitudinal direction . In a vacuum cleaner composed of a vacuum cleaner body comprising a blower and moving wheels, and a mouthpiece assembly comprising a mouthpiece and a suction hose,
The mouthpiece assembly includes a mouthpiece main body having a suction mouth for sucking dust and a suction pipe body connected to the connecting pipe, and the mouthpiece body is always in response to the movement of the hand handle transmitted through the connecting pipe. It operates to contact the bottom surface with the floor surface, and includes a suction body composed of a universal connecting portion that communicates so that an air flow containing dust sucked from the suction body is guided to the connection pipe,
The universal connection part is composed of a tubular lower arm part and a tubular upper arm part,
The lower arm portion is rotatably connected at one end in the longitudinal direction thereof to the suction mouth body via a first rotation shaft portion , and the other end is connected to one end of the upper arm portion via a second rotation shaft portion. rotation to be able to be connected,
The first rotating shaft portion and the second rotating shaft portion include one of a horizontal rotating shaft disposed in parallel with the longitudinal direction of the suction mouth body or a vertical rotating shaft orthogonal to the horizontal rotating shaft,
The lower arm portion or the upper arm portion that rotates via the horizontal rotation shaft includes a display device provided on a front surface portion thereof.
The display device includes a display substrate including a light source unit, and a light guide unit that diffuses light from the light source unit . The vacuum cleaner according to claim 6 ,
The lower arm portion or the upper arm portion includes a casing member for communicating without leakage air, and a cover member for covering the front portion of the casing member, and the display substrate that is disposed between the cover member and the casing member, A vacuum cleaner, comprising: a light guide provided on a front surface of the cover member. The vacuum cleaner according to claim 6 ,
The lower arm portion is rotatably connected at one end in the longitudinal direction thereof to the upper arm portion via a horizontal rotation shaft disposed in parallel with the longitudinal direction of the suction body, and the other end is connected to the horizontal rotation shaft. It is rotatably connected to the suction mouth body through an orthogonal vertical rotation axis,
The upper arm includes a casing member that communicates without air leakage, a cover member that covers a front portion of the casing member, the display substrate that is disposed between the casing member and the cover member, and a front surface of the cover member A vacuum cleaner comprising a light guide portion provided on the vacuum cleaner.