JP6173698B2 - Vacuum cleaner and its air passage forming body - Google Patents

Description

  Embodiments of the present invention relate to an air path forming body of an electric vacuum cleaner having an attachment rotatably attached to an air path forming portion that forms at least a part of the air path inside, and an electric vacuum cleaner including the same. .

  2. Description of the Related Art Conventionally, for example, a canister-type electric vacuum cleaner includes a vacuum cleaner body that can travel on a floor surface, and an air passage forming body that is a pipe portion having a base end connected to the vacuum cleaner body. The air path forming body includes, for example, a hose body that is an air path forming portion, an extension pipe, a floor brush, and the like. And, this air path forming body is detachably connected to the hand operation part on the distal end side of the hose body, and the connecting pipe of the floor brush is detachably connected to the distal end side of this extension pipe. An air path is formed inside.

  For example, when cleaning a high overhead position on a wall or the like, or when cleaning a table or the like, such an air path forming body is replaced with a floor brush instead of an extension pipe or a hand control unit. Use the attachment attached to the tip.

  Such an attachment is formed in a U-shape when viewed from the axial direction of the attachment, and brush hair as a cleaning member is planted at one end thereof, and is projected from an extension tube or a hand operating portion. Locking portions that selectively engage with the plurality of claw portions are recessed in the interior. The attachment is pivotally attached to the extension tube or the distal end of the hand operation unit, and is rotated downward along the side of the extension tube or the hand operation unit when not in use. When the latching part is fitted to the one claw part at the storage position and used, the brush bristles protrude from the extension tube or the front end of the hand operation part by rotating upward from the storage position. It operates so that a latching | locking part may be fitted with respect to another nail | claw part in a use position.

  In such a rotation operation of the attachment, both sides of the attachment are rotated between the thumb and the index finger. For this reason, it is difficult to apply a force when fitting the locking portion of the attachment to the extension tube or the claw portion of the hand operation portion, and a force is required for the locking operation to the claw portion. Therefore, it is desired to reduce the operation load when locking the attachment.

Japanese Patent No. 3213607

  The problem to be solved by the present invention is to provide an air passage forming body of an electric vacuum cleaner and an electric vacuum cleaner provided with the same, which reduce the operation load when the attachment is locked to the air passage forming portion. It is.

The air path formation body of the vacuum cleaner of embodiment has an air path formation part which forms the air path which connects with the suction side of the electric blower with which the cleaner main body was equipped inside. Moreover, the air path formation body of this vacuum cleaner has the attachment attached to the air path formation part so that rotation was possible. This attachment is formed in a U-shape when viewed from the axial direction of the attachment, and includes a main body portion that is gripped during operation. In addition, the attachment includes a cleaning member that protrudes along the axial direction at one end of the main body. Furthermore, this attachment is provided on both sides of the main body, and includes a pivot shaft that is pivotally supported by the air passage forming section. In addition, the attachment includes a scooping protrusion that protrudes in a direction intersecting the axial direction of the main body at the center of either one of the one end and the other end of the main body. Furthermore , the attachment is in a direction intersecting with the axial direction of the main body portion on both sides of the one end portion and the other end portion of the main body portion and on the opposite side to the protrusion for scooping as viewed from the rotating shaft. And a finger protrusion projecting from each other . And this attachment is provided in a main-body part, and is provided with the latching | locking part which latches an attachment to an air path formation part in a predetermined rotation position.

It is a side view which shows a part of air path formation body of the vacuum cleaner of one Embodiment, (a) shows the use position of an attachment, (b) shows the accommodation position of an attachment. It is sectional drawing which shows a part of said air path formation body, (a) shows the use position of an attachment, (b) shows the accommodation position of an attachment. It is a perspective view which shows a part of air path formation body same as the above, (a) shows the use position of an attachment, (b) shows the accommodation position of an attachment. It is a perspective view which shows a part of said air path formation body from back. It is a perspective view which shows a part of same air path formation body from the front. It is a perspective view which shows an attachment same as the above. It is a perspective view which shows the vacuum cleaner provided with the air path formation body same as the above.

  The configuration of one embodiment will be described below with reference to FIGS.

  In FIG. 7, reference numeral 11 denotes a so-called canister-type vacuum cleaner. The vacuum cleaner 11 includes a vacuum cleaner main body 12 and an air passage forming body 13 which is a pipe portion detachably connected to the vacuum cleaner main body 12. And have.

  The vacuum cleaner main body 12 includes a hollow main body case 15 that can turn and run on the floor surface as a surface to be cleaned, and the electric blower 16 and the electric blower 16 are powered inside the main body case 15. For example, a power supply unit (not shown) such as a cord reel device and a secondary battery, a main body control unit (not shown) for controlling the operation of the electric blower 16, and the like are accommodated. In addition, the vacuum cleaner body 12 communicates with the suction side of the electric blower 16 inside the main body case 15 or is detachable from the main body case 15, and collects the dust sucked by the driving of the electric blower 16. For example, a dust collection part 17 such as a dust collection bag or a cyclone separator is arranged. The vacuum cleaner main body 12 (main body case 15) is formed with an opening of a main body suction port 19 that communicates with the dust collecting portion 17 and to which the proximal end side of the air passage forming body 13 is connected.

  The air passage forming body 13 includes a hose body 21, a straight tubular extension pipe 22 made of, for example, synthetic resin that can be attached to and detached from the tip (downstream side) of the hose body 21, and a tip (downstream side) of the extension pipe 22 ) And a floor brush 23 that is detachable as a suction port body, and an air passage 24 communicating with the suction side of the electric blower 16 is defined inside. In the following, along the axial direction of the air passage forming body 13, the floor brush 23 side is defined as the front side, the hose body 21 side is defined as the rear side, and the left and right directions and the up and down directions are defined in directions perpendicular to these front and rear directions. Shall.

  The hose body 21 includes a flexible hose portion 25, a connecting pipe portion 26 provided on the base end side (downstream side) of the hose portion 25 and connected to the main body suction port 19, and a distal end side of the hose portion 25. It has a hand operating part 27 which is a grip pipe as an air passage forming part provided on the (upstream side).

  The proximal end side (downstream side) of the extension pipe 22 is detachably connected to the hand operation unit 27. In addition, the hand operating part 27 is formed with a grip part 28 that is gripped by the user so as to protrude to the base end side, and the operation mode of the electric blower 16 is set in the main body control part in the grip part 28. A setting button 29 is arranged. In addition, a clamp 30 for detachably locking the extension tube 22 to the hose body 21 is disposed at the distal end portion of the hand operation section 27, and an attachment 31 as an auxiliary cleaning body is externally provided. It is pivotally attached.

  Here, the attachment 31 is also called a brush base or the like, and is formed in a substantially semi-cylindrical shape as shown in FIGS. 1 to 7, and curved in a U shape when viewed from the axial direction of the attachment 31. The main body 33, the pedestal 34 which is one protrusion provided at one end of the main body 33 in the axial direction, and the other protrusion provided at the other axial end of the main body 33. An attachment main body 36 integrally having a certain flange portion 35, a claw portion 37 that is a locking portion protruding inside the main body portion 33 of the attachment main body 36, and both sides of the hand operating portion 27 are pivotable shafts. A pivot shaft 38 (only one is shown) is provided. Further, the attachment 31 has, for example, a symmetrical shape. The attachment 31 is positioned below the hand operation part 27 along the hand operation part 27 in a state where the extension pipe 22 is connected to the hose body 21 (hand operation part 27), that is, in a non-use state. Used in the storage position (Fig. 1 (b), Fig. 2 (b), Fig. 3 (b)) to be used, the extension tube 22 is removed from the hose body 21 (hand operating portion 27) and this attachment 31 is used. In the use state, the use position (FIG. 1 (a), FIG. 2 (a), FIG. 3 (a), FIG. 4) is connected to the distal end portion (front end portion) of the hand operation portion 27 and protrudes from the hand operation portion 27. , FIG. 5).

  The main body portion 33 is a grip portion (grip portion) that is gripped by the user's hand H when the attachment 31 is rotated with respect to the hand operation portion 27, and from the one side along the outside of the hand operation portion 27. It is continuously formed in a strip shape over the side. That is, the main body portion 33 is formed in a bowl shape that is curved along the outer periphery of the hand operation portion 27. The main body 33 is located between the pedestal 34 and the flange 35, and is recessed relative to the pedestal 34 and the flange 35. Further, the main body portion 33 is provided with protruding portions 40, 40 as rib-position indicating portions projecting in a rib shape at positions near the ends on both sides. These convex portions 40, 40 are formed, for example, in a straight line extending from one end side to the other end side of the main body portion 33, and other fingers including the thumb T of the hand H holding the main body portion 33 and the index finger F are included. The position is instructed to the user.

  The pedestal part 34 has a flange shape protruding in the radial direction, that is, in a direction intersecting (orthogonal) with the axial direction with respect to the main body part 33. The pedestal portion 34 is formed in a rib shape that is continuous along the circumferential direction of the main body portion 33 across the ridge line of one end portion of the main body portion 33. Further, a plurality of linear brush hairs 41 as cleaning members for cleaning are provided on the end surface 34 a of the pedestal portion 34 along the axial direction of the main body portion 33. For example, a plurality of brush bristles 41 are bundled and planted at a predetermined interval over the entire end surface 34a of the pedestal portion 34, and extend along the axial direction of the main body portion 33 (attachment main body 36).

  The flange portion 35 has a flange shape protruding in the radial direction, that is, in a direction intersecting (orthogonal) with the axial direction with respect to the main body portion 33. The flange portion 35 is formed in a rib shape that is continuous along the circumferential direction of the main body portion 33 across the ridge line of the other end portion of the main body portion 33.

  The pedestal part 34 and the flange part 35 are (one and the other) scooping protrusion parts 43 and 44, respectively, in the central part in the left and right side direction and along the circumferential direction of the main body part 33. In addition, band-like portions at the left and right ends and along the circumferential direction of the main body portion 33 are (other and one) finger protrusions 45, 45, 46, and 46, respectively. In other words, the scooping protrusions 43, 44 and the finger protrusions 45, 45, 46, 46 protrude in a direction intersecting (orthogonal) with respect to the axial direction of the main body 33.

  When the attachment 31 is turned, the protrusions 43 and 44 for scooping out of the scuffing portion W that is a crotch portion between the thumb T and the index finger F of the user's hand H holding the main body 33. This is the part where the central part comes into contact, and the watering protrusion 43 is used when the attachment 31 is rotated and locked to the storage position, and the watering protrusion 44 is rotated to the use position. It is used when locking. Further, the protrusion 44 for water scraping has the largest protrusion amount with respect to the main body 33 in the flange portion 35. The flange portion 35 may be configured such that the protruding amount gradually increases from both side portions (finger protruding portions 46, 46) to the central portion (watering protruding portion 44) or in the vicinity of the rotating shaft 38. Except for the position corresponding to, the entire projection may be large.

  The finger protrusions 45, 45, 46, 46 have the tips of the thumb T and the index finger F, etc., of the user's hand H holding the main body 33 when the attachment 31 is rotated. The finger protrusions 45 and 45 are used when the attachment 31 is rotated and locked to the use position, and the finger protrusions 46 and 46 move the attachment 31 to the storage position. Used when rotating and locking. That is, the finger protrusions 45, 45 are paired with the water scraping protrusion 44, and the finger protrusions 46, 46 are paired with the water scraping protrusion 43. In other words, when the attachment 31 is rotated to the use position, the water removal portion 44 and the finger protrusions 45 and 45 cause the water removal portion W, the thumb T, and the user's hand H to move. At least three points of contact with the tip of the index finger F and the like, and at the time of rotation to the storage position, the water scraping protrusion 43 and the finger protrusions 46 and 46 wipe the hand against the user's hand H. The portion W is in contact with at least three points, such as the thumb T and the index finger F. Therefore, when the attachment 31 is rotated, the scooping protrusions 43 and 44 positioned on the front side in the rotation direction and the finger protrusions 46, 46, 45 positioned on the rear side in the rotation direction are attached. 45 and support the hand H.

  The finger protrusions 45, 45, 46, 46 are located in the vicinity of the convex portion 40. Furthermore, the finger protrusions 45, 45 are formed in a semicircular shape, and the protrusion amount with respect to the main body 33 is the largest in the pedestal part 34.

  The claw portion 37 is located on the inner side (back side (rear side)) of the main body portion 33 and at a position corresponding to the protrusion 44 for water removal of the flange portion 35, that is, in the center in the left and right direction near the other end of the main body portion 33. The main body portion 33 protrudes toward the other end portion side. The claw portion 37 has a base end side continuous with the main body portion 33 and a distal end side separated from the main body portion 33. In other words, the claw portion 37 is located at the tip side through the gap G with respect to the main body portion 33 and can be elastically deformed into the gap G. Further, the front end side of the claw portion 37 does not protrude outward from the other end portion of the attachment main body 36, and the whole is located between both ends of the attachment main body 36 in the axial direction. When the attachment 31 is in the storage position, the claw portion 37 is provided with one locking receiving portion (one air passage forming portion side locking portion) that projects from the lower end of the front end (front end) of the hand operating portion 27. When the attachment 31 is in the use position, it is positioned at a position in front of the clamp 30 at the top of the front end (front end) of the hand operation unit 27. Locked. That is, although the member that receives the claw portion 37 does not particularly protrude from the upper portion of the distal end of the hand operating portion 27, the upper portion of the distal end of the hand operating portion 27 itself is connected to other locking receiving portions (other air passages). The upper latch receiving portion 49 is a use latch receiving portion as a forming portion side latching portion. Therefore, the upper latch receiving portion 49 constitutes the design surface of the hand operating portion 27 (the design surface itself), and is in a position that can be viewed by the user using the vacuum cleaner 11.

  The rotation shaft 38 is formed in a columnar shape, and protrudes toward the center in the left and right side directions at positions on the inner sides of both sides of the main body 33 (attachment main body 36). Although not shown in the drawing, these pivot shafts 38 are detachably fitted to the pivot receiving portions recessed on both sides of the hand operation section 27 so that the attachment 31 can be pivoted with respect to the hand operation section 27. I support. Further, these rotation shafts 38 are used for the watering protrusion 43 (watering protrusion 44), the claw part 37 and the finger when the attachment 31 is viewed from the side (the left and right sides intersecting (orthogonal) with the axial direction). It is located between the protrusions 46 (finger protrusions 45). In other words, the pivot shafts 38 are located between both end portions in the axial direction of the main body portion 33 and closer to the other end portion (closer to the flange portion 35) than the central portion of both end portions. Further, the pivot shafts 38 are positioned closer to the finger protrusions 46 (finger protrusions 45) than the water protrusions 43 (water removal protrusions 44) and the claw parts 37. As seen from the above, the distance to the draining protrusion 43 (watering protrusion 44) and the nail part 37 is set to about twice the distance to the finger protrusion 46 (finger protrusion 45). ing. For this reason, these pivot shafts 38 are positioned in the vicinity of the first joint of the thumb T of the hand H holding the main body 33 and the forefinger F, and the watering protrusion 43 (watering protrusion 44). ) And the claw portion 37 are located farther away from the rotation shaft 38 than the finger protrusion 46 (finger protrusion 45). These pivot shafts 38 are located between the water-sweeping projection 43 (water-sweeping projection 44) and the finger projection 46 (finger-projecting portion 45) when viewed from the side. In other words, with the pivot shaft 38 as the center, the watering protrusion 43 (watering protrusion 44) and the finger protrusion 46 (finger protrusion 45) are positioned on opposite sides.

  The extension tube 22 is, for example, an elongate extension tube that is formed in a long shape and can be expanded and contracted in the axial direction. A clamp 51 for detachably locking the floor brush 23 to the extension pipe 22 is disposed at the distal end of the extension pipe 22.

  Further, the floor brush 23 sucks in dust on the floor surface by traveling on the floor surface. The floor brush 23 has a longitudinally extending case body 54 extending in the left-right direction, that is, a horizontally long case body 54, and is rotatably connected to the rear portion of the case body 54 so as to be detachable from the distal end side (upstream side) of the extension pipe 22. And a connecting pipe 55 which is a rotating pipe as a connecting body to be connected.

  The case body 54 is composed of a plurality of case parts formed of, for example, a synthetic resin, and a horizontally long suction port (not shown) that communicates with the connecting pipe 55 is provided in a lower part facing the floor surface of the case body 54. Yes. You may attach the rotating brush as a rotary cleaning body to this suction inlet.

  On the other hand, the connection pipe 55 is rotatable with respect to the case body 54 in the direction around the axis (around the axis) and in the direction intersecting the axis.

  Next, the operation of the one embodiment will be described.

  When starting the cleaning, first, the air passage forming body 13 is connected to the main body inlet 19 of the cleaner main body 12 (main body case 15) in which the dust collecting portion 17 is arranged. For example, when cleaning a general floor surface, the connecting pipe portion 26 is inserted and connected to the main body suction port 19, and the extension pipe 22 is inserted and connected to the distal end side of the hand operating portion 27. The connecting pipe 55 of the floor brush 23 is connected to the tip side. At this time, the attachment 31 is in the storage position in which the claw portion 37 is locked to the lower locking receiving portion 48, and does not hinder the connection of the extension tube 22 to the hand operating portion 27. In addition, when the air path formation body 13 is already connected to the cleaner body 12, these operations are unnecessary.

  The user then sets the operation mode of the electric blower 16 by holding the holding portion 28 and operating a desired setting button 29. The main body control unit controls the input of the electric blower 16 corresponding to the set operation mode, and starts the electric blower 16 in the set operation mode.

  The negative pressure generated by the activation of the electric blower 16 acts on the air path forming body 13 through the dust collecting portion 17 and the main body suction port 19.

  Then, the user runs the floor brush 23 on the floor surface and sucks dust together with air from the suction port by the action of the negative pressure.

  On the other hand, for example, when cleaning a table or a shelf, the extension tube 22 (and the floor brush 23) is removed from the hand operation part 27 (hose body 21), and the hand operation part in which the attachment 31 is locked at the use position. Clean with 27. At this time, for example, the user grasps and fixes the hand operating part 27 with one hand by the grip part 28 or the like, and attaches the attachment 31 in the storage position with the thumb T of the other hand H on one side and the index finger F on the other side. After gripping the other fingers including the other side along the main body 33, the attachment 31 is rotated upward about the rotation shaft 38. Then, the attachment 31 is first pushed forward of the hand operating portion 27 to release the latch to the lower latch receiving portion 48 of the claw portion 37, and then rotated so that the attachment 31 is folded back upward. After that, the attachment 31 is pushed again to the upper rear side of the hand operating portion 27 to lock the claw portion 37 to the upper locking receiving portion 49. When the attachment 31 is pushed in, fingers such as the thumb T and the index finger F are brought into contact with the finger protrusions 45 and 45, and the scuffing portion W is brought into contact with the scooping protrusion 44 to attach the attachment 31 throughout the hand H. To turn the finger protrusions 45, 45 on the rear side in the rotation direction relatively to the rear side in the rotation direction, and relatively rotate the water protrusion protrusion 44 on the front side in the rotation direction. It will push to the front side of a moving direction in the mutually opposite direction. For this reason, the force is efficiently transmitted to the attachment 31 from the entire hand H, and the attachment 31 is pushed at a low load to release the claw portion 37 from the lower engagement receiving portion 48, or the claw portion 37 is moved upward. It can be locked to the lock receiving portion 49. Further, the claw portion 37 gradually returns and deforms from the gap G along the shape of the lower locking receiving portion 48 by the rotation of the attachment 31 when releasing the locking to the lower locking receiving portion 48. Therefore, it is difficult to damage the lower locking receiving portion 48. Similarly, when the claw portion 37 is locked to the upper locking receiving portion 49, the claw portion 37 is gradually pressed into the gap G along the shape of the upper locking receiving portion 49 by the rotation of the attachment 31. Since it is gradually elastically deformed so as to escape into the gap G, the upper latch receiving portion 49 is hardly damaged.

  For example, the attachment 31 in the use position is inclined in such a way that the axial direction of the main body 33 is inclined with respect to the axial direction of the hand operating section 27, and the main body 33 (attachment main body 36) extends to the hand operating section 27 in the axial direction. At the same time, the bristle 41 is located from both sides of the distal end of the hand operating portion 27 to the upper side and protrudes from the front end of the hand operating portion 27 toward the front lower side. The user grips the grip portion 28 and sweeps the dust with the brush bristles 41, and sucks the dust together with air from the tip of the hand operation portion 27 by the negative pressure generated by driving the electric blower 16.

  The air containing dust, that is, the dust-containing air is guided from the air passage forming body 13 to the dust collecting unit 17, and the contained dust is collected and collected in the dust collecting unit 17. The air from which dust is separated and collected is sucked into the electric blower 16 from the dust collecting portion 17, passes through the electric blower 16 while cooling, and becomes exhausted air. The electric blower 16 passes through an exhaust hole (not shown). Then, the air is exhausted to the outside of the vacuum cleaner main body 12 (main body case 15).

  When the cleaning is completed, the user operates the predetermined setting button 29 so that the main body control unit decreases the input of the electric blower 16 and stops the electric blower 16.

  When the attachment 31 is stored, an operation reverse to that when the attachment 31 is set to the use position is performed. That is, the user grasps and fixes the hand operating part 27 with one hand by the grip part 28 or the like, and attaches the attachment 31 in the use position with the thumb T of the other hand H on one side and the index finger F. Then, the attachment 31 is rotated downward about the rotation shaft 38. Then, the attachment 31 is first pushed into the front lower side of the hand operating portion 27 to release the hook of the claw portion 37 from the upper locking receiving portion 49, and then the attachment 31 is folded back to the lower lower side. After the rotation, the attachment 31 is pushed into the lower rear side of the hand operating portion 27 again to lock the claw portion 37 to the lower locking receiving portion 48. When the attachment 31 is pushed in, fingers such as the thumb T and the index finger F are brought into contact with the finger protrusions 46 and 46, and the scrubbing portion W is brought into contact with the watering protrusion 43 to attach the attachment 31 throughout the hand H. To turn the finger protrusions 46, 46 on the rear side in the rotation direction relatively to the rear side in the rotation direction, and relatively rotate the water splashing protrusion 43 on the front side in the rotation direction. Since the forces are pushed in opposite directions to the front side in the moving direction, the force is efficiently transmitted from the entire hand H to the attachment 31, and the attachment 31 is pushed in with a low load, so that the claw portion 37 is moved against the upper locking receiving portion 49. The claw portion 37 can be locked to the lower lock receiving portion 48. Further, the claw portion 37 gradually returns and deforms from the gap G due to the rotation of the attachment 31 when releasing the locking to the upper locking receiving portion 49, so that the upper locking receiving portion 49 is hardly damaged. Similarly, the claw portion 37 is gradually pressed into the gap G along the shape of the lower locking receiving portion 48 by the rotation of the attachment 31 when locked to the lower locking receiving portion 48. Thus, since it gradually elastically deforms so as to escape into the gap G, the lower latch receiving portion 48 is hardly damaged.

  In the attachment 31 in the storage position, the axial direction of the main body 33 is substantially coincident with and parallel to the axial direction of the hand operating portion 27, and the brush hair 41 is positioned rearward along the lower side of the hand operating portion 27.

  According to the embodiment described above, at least one of the one end part and the other end part of the main body part 33, in the present embodiment, the central part of each of the one end part and the other end part of the main body part 33 in both sides. The protrusions 43 and 44 for scooping are provided in a direction crossing the axial direction of the main body 33, and the other end of the main body 33 and the other end of the main body 33 in the present embodiment. Finger projections 46, 46, 45, 45 project in the direction intersecting the axial direction of the main body 33 on both sides of each part and one end so that fingers such as the thumb T and index finger F When it is brought into contact with the finger protrusions 46, 46, 45, 45 and the water scraping portion W is brought into contact with the water protrusion protrusions 43, 44, the force is efficiently transmitted from the entire hand H to the attachment 31 with low load. Push the attachment 31 to unlock the claw portion 37 with respect to the lower locking receiving portion 48, or 37 may or locked against the upper locking receiving portion 49. That is, it is possible to reduce an operation load when the attachment 31 (claw portion 37) is locked and unlocked with respect to the hand operation portion 27 (lock receiving portions 48 and 49).

  In particular, one end (base 34) of the main body 33 of the attachment 31 has a brush hair 41 projecting from it, and this brush hair 41 may be used because dust may adhere during cleaning. It is not preferable for a person to touch it directly. Therefore, in the present embodiment, when the attachment 31 is locked and unlocked with respect to the hand operating portion 27, particularly when the claw portion 37 is locked to the upper locking receiving portion 49 and the attachment 31 is used. In addition, the claw portion 37 can be easily engaged with the upper latch receiving portion 49 only by the twist of the hand H holding the main body portion 33 without pushing the vicinity of the brush bristle 41 (end surface 34a of the pedestal portion 34) along the axial direction. Since it can be stopped, the user does not touch the bristle 41 directly when the attachment 31 is locked, and so on, which is hygienic.

  Further, by forming the protrusions 43 and 44 for water scraping and the protrusions 45, 45, 46 and 46 for fingers along the circumferential direction of the main body 33, in the user's hand H, the water scraping part W and the thumb T and Since the finger such as the index finger F can be more easily brought into contact with the scooping protrusions 43 and 44 and the finger protrusions 45, 45, 46, and 46, the claw part 37 can be attached to the lower locking receiving part 48 or the upper side. When locking / unlocking the lock receiving portion 49, it is easier to transmit the force to the attachment 31 when the attachment 31 is rotated, and the attachment 31 is locked at a lower load. And can be unlocked.

  Furthermore, the pedestal part 34 and the flange part 35 provided with the protrusions 43 and 44 for water scraping and the protrusions 45, 45, 46 and 46 for fingers are continued along the circumferential direction of the main body part 33, so that the user's In the hand H, the entire finger such as the water scraping portion W, the thumb T, and the index finger F can be brought into contact with the pedestal portion 34 and the flange portion 35. When the upper lock receiving portion 49 is locked or released, the force is more easily transmitted by the attachment 31 when the attachment 31 is rotated, and the attachment 31 is engaged at a lower load. Can stop and unlock.

  Since the protrusion 44 for water scraping has the largest protrusion amount from the main body 33 in the flange portion 35, the water scraping portion W can be brought into contact more reliably when the attachment 31 is rotated.

  Further, by projecting the claw portion 37 to the attachment main body 36 inwardly from the attachment main body 36 through the attachment main body 36 and the gap G, the claw portion 37 is fixed to the locking receiving portions 48 and 49. When the attachment 31 is pushed to be locked, the claw portion 37 can be elastically deformed so as to escape into the gap G. Therefore, the claw portion 37 can be prevented from rubbing more strongly than necessary with respect to the lock receiving portions 48 and 49, and the lock receiving portions 48 and 49 can be prevented from being scraped, and the attachment 31 can be stably operated over a long period of time. Can be locked against. In particular, since the upper latch receiving portion 49 constitutes the design surface of the hand operating portion 27, it is possible to suppress the deterioration of the appearance over a long period of time by suppressing the scraping of the upper latch receiving portion 49.

  Moreover, since the claw portion 37 is located inside the attachment main body 36, the claw portion 37 does not get in the way when the main body portion 33 is gripped, and the operability of the rotation operation of the attachment 31 is not deteriorated. At the same time, since the claw portion 37 does not protrude from the outline of the attachment main body 36, the claw portion 37 is hardly damaged even when the attachment 31 is removed from the hand operation portion 27 for maintenance or the like.

  In addition, the claw portion 37 is locked to the upper locking receiving portion 49 on the upper side of the hand operation portion 27 to lock the attachment 31 in the use position, and the lower portion on the lower side of the hand operation portion 27. Since the attachment 31 is locked to the storage position by being locked to the stopper 48, the attachment 31 is selectively engaged between the use position and the storage position using the common claw portion 37. The configuration can be further simplified.

  Further, since the claw portion 37 is formed at a position separated from the rotation shaft 38, the load applied to the claw portion 37 with respect to the locking receiving portions 48 and 49 can be reduced.

  And, when viewed from the side, the distance between the protrusions 43 and 44 for scraping from the rotating shaft 38 is approximately twice the distance of the finger protruding portions 45, 45, 46 and 46 from the rotating shaft 38. Thus, the rotation shaft 38 is in the vicinity of the first joint of the thumb T of the hand H holding the main body 33 and the index finger F, so that the rotation operation of the attachment 31 becomes easier.

  In the above-described embodiment, the same effect can be obtained even if the attachment 31 is attached to the distal end side of the extension tube 22 that is the air passage forming portion.

  Further, the convex portion 40 may be formed in the main body portion 33 along the circumferential direction, for example, to prevent slippage of other fingers such as the thumb T or the index finger F when the attachment 31 is rotated.

  Further, the grip position instruction unit can have an arbitrary configuration. For example, it may be a concave portion instead of the convex portion 40, or may be provided with an identifiable mark.

  The pedestal part 34 and the flange part 35 may be formed intermittently in the circumferential direction of the main body part 33, or only the watering protrusions 43, 44 and the finger protrusions 45, 45, 46, 46. May be formed.

  Furthermore, the latching portion is configured to be latched to the latch receiving portions 48 and 49 as the claw portion 37, but the latching portion on the attachment 31 side is a recess or the like, and the latching portion on the air passage forming portion side is a nail shape or the like It is good.

  The vacuum cleaner 11 is not limited to the canister type, and may be an upright type vacuum cleaner 11 in which a floor brush 23 is connected to the lower part of the longitudinal vacuum cleaner body 12 along the vertical direction. In the case of this upright type vacuum cleaner 11, for example, a hand operating part that includes a grip part 28 for moving the vacuum cleaner body 12 and the like and that internally forms an air passage 24 communicating with the suction side of the electric blower 16 By applying it to the elongated extension tube 22 for cleaning a high position, etc., which communicates with the hand 27 and the hand operating section 27, the same operational effects as in the above-described embodiment can be obtained.

  Although one embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

11 Vacuum cleaner
12 Vacuum cleaner body
13 Air channel former
16 Electric blower
24 wind paths
27 Hand operating part as air path forming part
31 Attachment
33 Main unit
37 Claw that is a locking part
38 Rotating axis
41 Brush hair as a cleaning member
43,44 Watering protrusion
45, 46 Finger protrusion

Claims (3)

An air passage forming portion that forms at least part of the air passage communicating with the suction side of the electric blower provided in the vacuum cleaner body;
An attachment attached to the air passage forming portion so as to be rotatable,
The attachment is
A body portion that is formed in a U-shape when viewed from the axial direction of the attachment and is gripped during operation;
A cleaning member protruding along the axial direction at one end of the main body, and
A rotating shaft provided on both sides of the main body and pivotally supported by the air passage forming portion;
A projecting portion for watering projecting in a direction intersecting with the axial direction of the main body at the center of both sides of at least one of the one end and the other end of the main body,
The other two sides of one end and the other end of said body portion, wherein each collision in a direction crossing the axial direction of the main body portion on the opposite side to the viewed from the pivot shaft said paddle protrusions Provided finger protrusions ,
An air passage forming body for an electric vacuum cleaner, comprising: an engaging portion that is provided on the main body portion and engages the attachment with the air passage forming portion at a predetermined rotational position. The air channel formation body for an electric vacuum cleaner according to claim 1, wherein the scooping protrusion and the finger protrusion are formed along a circumferential direction of the main body. A vacuum cleaner body equipped with an electric blower;
An electric vacuum cleaner comprising the air passage forming body according to claim 1 or 2, wherein the suction side of the electric blower communicates with the air passage.

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