JP6724500B2 - Suction tool - Google Patents

Description

The present invention relates to a suction tool.

Conventionally, a mite removal vacuum cleaner having a cleaner body and a base, the base dust suction port is installed on the lower surface of the base, the top concave groove and the base dust suction port on the upper surface of the base. With a base dust outlet that penetrates, the cleaner body is sandwiched in the top groove and is also installed as a handy cleaner.The dust inlet of the cleaner body is detachably connected to the base dust outlet. It is known that a wheel is provided at the rear end of the lower surface of the base (see, for example, Patent Document 1).

Utility model registration No. 3196862

However, in the conventional suction tool shown in Patent Document 1, the upper surface of the base (suction tool) is provided at a portion for supporting the cleaner body and the rear end of the lower surface of the base (suction tool). There is no consideration about the positional relationship with the wheel that has been taken, and the problem is that the user lacks stability and operability when the user holds the handle of the cleaner body and operates it while applying a load to the cleaner body and the suction tool. There is.

The present invention has been made to solve such problems, and provides stability and operability when a user holds the handle of the cleaner body and operates the cleaner body and the suction tool while applying a load. A suction device that can be improved.

In the suction tool according to the present invention, a suction portion having a suction port formed on the lower surface and the suction portion are provided, one end side of which is connected to the suction port, and the suction pipe of the electric vacuum cleaner is connected to the other end portion. A joint member; and a cleaner mounting portion that is provided to extend rearward from a rear end of the suction portion and that supports a cleaner body of the electric vacuum cleaner from below from an upper surface portion. A wheel provided on the lower surface of the cleaner mounting portion, and a cleaner provided on the upper surface and contacting the surface of the cleaner body when the cleaner mounting portion supports the cleaner body. A receiving part, and the positions of the wheel shaft and the vacuum cleaner receiving part in the front-rear direction are such that the user holds the cleaner main body in a state in which the cleaner mounting part supports the cleaner main body. Within the range from the front end to the rear end of the machine handle and below the rechargeable battery of the cleaner body, the position of the cleaner receiver in the front-rear direction is the position of the wheel shaft in the front-rear direction. It disposed forward from just above or just above the, the lower surface of the cleaner receiving section, a structure in which the recess which is recessed upward is Ru is formed.

With the suction tool according to the present invention, it is possible to improve the stability and operability when a user holds the handle of the cleaner body and operates the cleaner body and the suction tool while applying a load. ..

It is a perspective view which shows the state which attached the vacuum cleaner to the suction tool which concerns on Embodiment 1 of this invention. It is a side view which shows the state which attached the vacuum cleaner to the suction tool which concerns on Embodiment 1 of this invention. It is a side view of the vacuum cleaner with which the suction tool concerning Embodiment 1 of this invention is equipped. It is a longitudinal cross-sectional view of the electric vacuum cleaner of FIG. It is the perspective view which looked at the vacuum cleaner of FIG. 3 from the lower side. It is the perspective view which looked at the suction tool concerning Embodiment 1 of this invention from the slanting front and the slanting upper part. It is the perspective view which looked at the suction tool of FIG. 6 from diagonally front and diagonally downward. It is the perspective view which looked at the upper case with which the suction tool concerning Embodiment 1 of this invention was equipped from the slanting front and the slanting upper part. It is the perspective view which looked at the upper case of FIG. 8 from diagonally rear and diagonally downward. It is the perspective view which looked at the lower case with which the suction tool concerning Embodiment 1 of this invention was equipped from the slanting front and the slanting upper part. It is the perspective view which looked at the lower case of FIG. 10 from diagonally forward and diagonally downward. FIG. 11 is a top view of the lower case of FIG. 10. It is the perspective view which looked at the rotary brush cover with which the suction tool concerning Embodiment 1 of this invention was provided from the slanting front and the slanting upper part. It is the perspective view which looked at the rotary brush cover of FIG. 13 from diagonally rear and diagonally downward. It is a perspective view of the front wheel assembly with which the suction tool concerning Embodiment 1 of this invention is provided. FIG. 16 is a plan view of the front wheel assembly of FIG. 15. It is a perspective view which shows the state which removed the tire from the front wheel assembly of FIG. FIG. 16 is a perspective view of a tire included in the front wheel assembly of FIG. 15. It is a perspective view of the cleaner fixing tool with which the suction tool concerning Embodiment 1 of this invention is provided. FIG. 3 is a perspective view of a rear wheel included in the suction tool according to Embodiment 1 of the present invention. FIG. 3 is a perspective view of a lower cover stopper included in the suction device according to the first embodiment of the present invention. It is the perspective view which looked at the lower cover assembly with which the suction tool concerning Embodiment 1 of this invention was equipped from the slanting front and the slanting upper part. FIG. 23 is a perspective view of the lower cover assembly of FIG. 22 as viewed obliquely from the rear and obliquely from below. It is a perspective view of a rotary brush assembly with which the suction tool concerning Embodiment 1 of this invention is provided. It is the perspective view which looked at the joint member with which the suction tool concerning Embodiment 1 of this invention is provided from the slanting front and the slanting upper part. It is the perspective view which looked at the joint member of Drawing 25 from slanting back and slantingly above. It is the perspective view which looked at the joint member of Drawing 25 from the slanting front and the slanting lower part. It is a perspective view of a joint cover with which the suction tool according to Embodiment 1 of the present invention is provided. It is the perspective view which looked at the front cover with which the suction tool concerning Embodiment 1 of this invention was provided from the slanting front and the slanting upper part. It is the perspective view which looked at the front cover of FIG. 29 from diagonally rear and diagonally downward. It is the perspective view which looked at the suction tool of FIG. 6 from diagonally backward and diagonally upward. It is a longitudinal cross-sectional view of the state which attached the vacuum cleaner to the suction tool which concerns on Embodiment 1 of this invention. It is a longitudinal cross-sectional view of the suction tool which concerns on Embodiment 1 of this invention. It is the figure which looked at the state where the vacuum cleaner was attached to the suction implement concerning Embodiment 1 of this invention from the lower part. It is the figure which looked at the state where the vacuum cleaner was attached to the suction implement concerning Embodiment 1 of this invention from the back.

Embodiments for carrying out the present invention will be described with reference to the accompanying drawings. In each of the drawings, the same or corresponding parts will be denoted by the same reference signs, and redundant description will be appropriately simplified or omitted. The present invention is not limited to the following embodiments, and various modifications can be made without departing from the spirit of the present invention.

Embodiment 1.
1 to 36 relate to Embodiment 1 of the present invention. FIG. 1 is a perspective view showing a state in which an electric vacuum cleaner is attached to a suction tool, and FIG. 2 is a state in which an electric vacuum cleaner is attached to a suction tool. 3 is a side view of the electric vacuum cleaner mounted on the suction tool, FIG. 4 is a vertical sectional view of the electric vacuum cleaner of FIG. 3, and FIG. 5 is a bottom view of the electric vacuum cleaner of FIG. It is a perspective view.

FIG. 6 is a perspective view of the suction tool as seen obliquely from the front and obliquely above, FIG. 7 is a perspective view of the suction tool of FIG. 6 as seen from the oblique front and obliquely below, and FIG. 8 is an upper case included in the suction tool as the diagonal front and FIG. 9 is a perspective view seen obliquely from above, FIG. 9 is a perspective view showing the upper case of FIG. 8 seen obliquely from the rear and from below, and FIG. 10 is a perspective view showing the lower case of the suction device seen from the oblique front and from above. 11 is a perspective view of the lower case of FIG. 10 as seen obliquely from the front and diagonally downward, FIG. 12 is a top view of the lower case of FIG. 10, and FIG. 13 is a view of the rotary brush cover of the suction tool as seen from diagonally front and diagonally above. FIG. 14 is a perspective view of the rotary brush cover of FIG. 13 as seen from diagonally rearward and diagonally downward.

15 is a perspective view of a front wheel assembly included in the suction tool, FIG. 16 is a plan view of the front wheel assembly of FIG. 15, FIG. 17 is a perspective view showing a state where the tire is removed from the front wheel assembly of FIG. 15, and FIG. FIG. 15 is a perspective view of a tire included in the front wheel assembly, FIG. 19 is a perspective view of a cleaner fixing tool included in the suction tool, FIG. 20 is a perspective view of a rear wheel included in the suction tool, and FIG. 21 is a lower cover included in the suction tool. FIG. 22 is a perspective view of the lower cover assembly of the suction tool as seen obliquely from the front and diagonally above, and FIG. 23 is a perspective view of the lower cover assembly of FIG. 22 as seen from the diagonal rear and diagonally below. 24 is a perspective view of a rotary brush assembly provided in the suction tool.

25 is a perspective view of the joint member included in the suction device as seen obliquely from the front and diagonally above, FIG. 26 is a perspective view of the joint member of FIG. 25 as seen from obliquely rearward and diagonally above, and FIG. 29 is a perspective view of the joint cover of the suction tool, FIG. 29 is a perspective view of the front cover of the suction tool as seen obliquely from the front and diagonally above, and FIG. FIG. 31 is a perspective view of the front cover of FIG. 6 as viewed obliquely from the rear and obliquely below, and FIG. 31 is a perspective view of the suction tool of FIG. 6 as viewed from the oblique rear and obliquely above.

32 is a vertical cross-sectional view of the suction tool with the electric vacuum cleaner attached, FIG. 33 is a vertical cross-sectional view of the suction tool, FIG. 34 is a view of the suction tool with the electric vacuum cleaner attached, as seen from below, FIG. [Fig. 4] is a view of a state in which an electric vacuum cleaner is attached to the suction tool as viewed from the rear.

As shown in FIGS. 1 and 2, suction tool 1 according to Embodiment 1 of the present invention is used with an electric vacuum cleaner 4 attached thereto. The suction tool 1 is particularly suitable for cleaning bedding with the electric vacuum cleaner 4. Here, first, the electric vacuum cleaner 4 will be described, and then the suction tool 1 that is attached to and detached from the electric vacuum cleaner 4 will be described.

In the following description, the directions of the suction tool 1 and the electric vacuum cleaner 4 that are determined as described below are used as necessary. First, in the front-back direction, the side of the suction tool 1 on which the later-described suction portion 2 is arranged is the front, and the side on which the later-described cleaner handle 505 is arranged is the rear. Next, the direction orthogonal to the front-rear direction in the horizontal plane is the left-right direction. In addition, the up-down direction follows the up-down direction when the electric vacuum cleaner 4 is used while being attached to the suction tool 1. That is, the side on which the vacuum cleaner handle 505 is arranged is the upper side, and the side on which the front wheel assembly 181 and the rear wheel 241 described later are arranged is the lower side. Then, with respect to the direction of the air flow for sucking dust, the suction opening 314 side of the suction tool 1 to be described later is upstream, and the exhaust port 509 side of the electric vacuum cleaner 4 to be described later is downstream. Further, all substances to be cleaned by the electric vacuum cleaner 4, such as dust, dust, hair, fiber waste, etc., are collectively referred to as “dust”.

The electric vacuum cleaner 4 used together with the suction tool 1 according to Embodiment 1 of the present invention is used as a stick cleaner by itself by mounting another attachment in place of the suction tool 1. The configuration of the electric vacuum cleaner 4 will be described with reference to FIGS. 3 to 5. The electric vacuum cleaner 4 includes a cleaner main body 501 that constitutes the main body thereof, and a dust collecting unit 531 described later.

The cleaner body 501 includes an electric blower 502, a battery unit 520, a cleaner handle 505, a cleaner suction pipe 507, an exhaust port 509, and the like. Here, the electric blower 502, the battery unit 520, and the dust collecting unit 531 are formed in a cylindrical shape having the same diameter as each other, as described later. The dust collector 531 is detachably attached to the front end surface of the electric blower 502, and the battery unit 520 is attached to the rear end surface of the electric blower 502, so that the electric vacuum cleaner 4 is formed into an elongated cylindrical shape as a whole. ing.

The electric blower 502 generates an air flow for sucking dust into the cleaner body 501, and includes a cylindrical blower casing 521 and a movable part such as an electric motor and a fan housed in the blower casing 521. ing. The battery unit 520 includes a battery casing 522, and a rechargeable battery 504 and a control board 503 housed in the battery casing 522. The battery casing 522 has a flat upper surface facing the cleaner handle 505, and a cylindrical shape other than the upper surface. The rechargeable battery 504 constitutes a power source of the electric vacuum cleaner 4, and supplies electric power to the electric blower 502, the control board 503, and the like. The control board 503 controls the operation of the electric vacuum cleaner 4, and includes a microcomputer and the like.

The vacuum cleaner handle 505 is a portion that is gripped when the electric vacuum cleaner 4 is used, is attached to the upper surface of the battery unit 520, and extends in the front-rear direction. A front end portion of the cleaner handle 505, which is not gripped by a person, extends to the upper surface portion of the electric blower 502, and an operation unit including a power switch of the electric vacuum cleaner 4 is arranged at this portion. The cleaner suction pipe 507 is a conduit for introducing the air sucked from the surface to be cleaned into the dust collection unit 531. The cleaner suction pipe 507 is fixed to the upper surface of the electric blower 502 on the front side. The vacuum cleaner suction pipe 507 extends in the front-rear direction along the upper surface portion of the dust collection unit 531 in a state of being aligned with the vacuum cleaner handle 505, and projects forward from the front end surface of the dust collection unit 531.

The cleaner suction pipe 507 is formed with a cleaner suction port 506 and a suction pipe discharge port 508. The suction tool 1 is detachably connected to the cleaner suction port 506. The suction pipe discharge port 508 is detachably connected to the inflow side of the dust collection unit 531. The vacuum cleaner suction port 506 is connected to not only the suction tool 1 described in the first embodiment but also various other suction tools and attachments such as extension pipes (none of which are shown).

An attachment/detachment button 510 for attaching/detaching the attachment is arranged on the front end side of the cleaner suction pipe 507. The attachment/detachment button 510 is formed integrally with a connection latch 511 (FIG. 4) which is latched to a connection latch receiver 373 (described later) on the suction tool 1 side. The connection latch 511 is released from the connection latch receiver 373 when the user presses the attachment/detachment button 510, so that the attachment can be attached/detached.

The exhaust port 509 is an opening for discharging the air after removing dust from the electric vacuum cleaner 4. As shown in FIG. 3, the exhaust port 509 is composed of, for example, a plurality of slits, and is opened at a position other than the upper side of the blower casing 521, that is, the left and right side surface portions and the lower surface portion of the blower casing 521. According to this configuration, it is possible to suppress the exhaust gas from hitting the hand of the user who holds the cleaner handle 505 or the like while forming the opening area of the exhaust port 509 large.

It should be noted that a slit-shaped recess that looks similar to the exhaust port 509 is formed on the upper side of the blower casing 521. These recesses do not function as the exhaust port 509, but are arranged in the same circumferential shape as the exhaust port 509 to improve the design. Further, on the outside of the cleaner suction pipe 507, for example, a cleaner protrusion 512 that protrudes along the front end surface of the dust collection unit 531 is attached. A charging terminal 513 for charging the rechargeable battery 504 is disposed on the vacuum cleaner protrusion 512.

Next, the dust collecting unit 531 will be described. The dust collecting unit 531 is detachably attached to the cleaner body 501. As shown in FIG. 4, the dust collecting unit 531 is configured by, for example, a cyclone type dust collecting device that separates dust from air by utilizing centrifugal force. The dust collection unit 531 includes a dust collection casing 523, a partition wall 536, a dust collection chamber 537, a dust collection unit handle 532, a dust collection unit lever 533, a handle flange 534, a cleaner fixing convex portion receiver 535, and the like.

The dust collecting casing 523 is formed in a cylindrical shape having an outer diameter equal to that of the blower casing 521 and the battery casing 522. The partition wall 536 is coaxially arranged inside the dust collecting casing 523, and is formed in a double cone shape with an open end. The dust collecting chamber 537 is formed between the inner peripheral surface of the dust collecting casing 523 and the outer peripheral surface of the partition wall 536. Then, the dust collecting unit 531 removes the dust in the air flowing into the dust collecting casing 523 from the cleaner suction port 506 and collects it in the dust collecting chamber 537, and the air after the dust is removed is driven by the electric blower 502. Spill towards. Here, as described above, the dust collecting unit 531 is configured by a cyclone type dust collecting device. That is, the dust-containing air is swirled around the central axis inside the dust collecting unit 531 to separate the dust from the dust-containing air.

The dust collection unit handle 532 is a portion that is gripped when the dust collection unit 531 is removed from the cleaner body 501, when the dust collected in the dust collection chamber 537 is discarded, and the like, and is an elongated protrusion that extends in the front-rear direction. Is formed as. The front side of the dust collecting unit handle 532 is fixed to the outer peripheral surface of the dust collecting casing 523 at the lower rear side. Further, the rear side of the dust collecting unit handle 532 extends to a position in contact with the outer peripheral surface of the electric blower 502, and is detachably connected to the blower casing 521.

The dust collection unit lever 533 is operated when the connection between the dust collection unit 531 and the electric blower 502 is released, and is arranged on the lower surface of the dust collection unit handle 532. The user can remove the dust collecting unit 531 from the cleaner body 501 by operating the dust collecting unit lever 533.

As shown in FIG. 5, the handle flange 534 is a frame-shaped protrusion formed on the peripheral portions of the left and right side surfaces of the dust collecting unit handle 532. The handle flange 534 has a function of facilitating gripping the dust collecting unit handle 532 and a function of a hooking portion when the electric vacuum cleaner 4 is attached to the suction tool 1 as described later. The vacuum cleaner fixing convex portion receiver 535 is a concave portion that opens to the front surface of the dust collecting unit handle 532. When the electric vacuum cleaner 4 is attached to the suction tool 1, the vacuum cleaner fixing projection 125 on the suction tool 1 side is inserted into the vacuum cleaner fixing projection receiver 535.

Next, the suction tool 1 will be described. The suction tool 1 is an attachment for cleaning a surface to be cleaned such as a futon, a carpet, and a floor while being attached to the electric vacuum cleaner 4, and particularly has a function of efficiently cleaning the surface of the bedding such as the futon. have. The suction tool 1 sucks dust from the surface to be cleaned by using the suction force of the electric blower 502 and sends the dust together with the air to the cleaner suction port 506 of the electric vacuum cleaner 4.

As shown in FIGS. 6 and 7, the suction tool 1 is formed in a T-shape as a whole by combining the upper case 101 and the lower case 261, for example, and the suction part 2 that constitutes the front end portion of the suction tool 1 is formed. , And a cleaner mounting portion 3 fixed to the rear end portion of the suction portion 2. The suction part 2 is a part that functions as a suction port nozzle, and is elongated in the left-right direction.

The cleaner mounting portion 3 is formed, for example, as a flat rectangular pedestal, and extends rearward from an intermediate portion of the suction tool 1 in the left-right direction. The electric vacuum cleaner 4 is connected to the suction unit 2 while being attached to the vacuum cleaner mounting unit 3. The functions of the cleaner mounting portion 3 are to support the electric vacuum cleaner 4 from below, improve operability and usability when using the electric vacuum cleaner 4 on a surface to be cleaned such as bedding, and This is to prevent the exhaust air blown downward from the cleaner 4 from directly hitting the surface to be cleaned.

As shown in FIGS. 6 and 7, the suction tool 1 includes an upper case 101 and a lower case 261. The upper case 101 is a member that mainly constitutes an upper shell of the suction tool 1. The upper case 101 integrally forms the upper side of the suction section 2 and the upper side of the cleaner mounting section 3. The lower case 261 is a member that mainly forms the lower outer shell of the suction tool 1. The lower case 261 integrally forms the lower side of the suction section 2 and the lower side of the cleaner mounting section 3.

As shown in FIGS. 8 and 9, the front cover mounting portion 102, the front cover claw receiver 103, the front cover claw hole 104, the joint hole 105, and the joint cover are formed in the portion of the upper case 101 that forms the upper side of the suction portion 2. A mounting portion 106 and a joint cover claw receiver 107 are formed.

The front cover mounting portion 102 is a recess formed on the upper surface of a portion of the upper case 101 that forms the upper side of the suction portion 2. A front cover 421 is mounted on the front cover mounting portion 102 as shown in FIG. Details of the front cover 421 will be described later. The front cover mounting portion 102 is recessed at a depth substantially equal to the thickness of the front cover 421 as compared with the periphery thereof. The contour of the front cover mounting portion 102 has a shape that matches the outer shape of the front cover 421.

The front cover claw receiver 103 is a portion that engages with a front cover claw 422, which will be described later, of the front cover 421 when the front cover 421 is attached to the front cover mounting portion 102. The front cover claw hole 104 is for passing the front cover claw 422 from the front side of the upper case 101 to the back side when the front cover claw 422 is engaged with the front cover claw receiver 103. The front cover claw holes 104 are provided corresponding to the respective front cover claw receivers 103. Then, each front cover claw receiver 103 is formed behind the corresponding front cover claw hole 104.

The joint hole 105 is an opening formed through the front side and the back side of the upper case 101. A joint member mounting portion 145 of a rotary brush cover 141, which will be described later, is passed through the joint hole 105. The joint cover mounting portion 106 is a portion on which a joint cover 401 described later is mounted. The contour of the joint cover mounting portion 106 has a shape that matches the outer shape of the joint cover 401. The joint cover mounting portion 106 is recessed as compared with its surroundings. The joint cover mounting portion 106 is provided along the outside of the edge of the joint hole 105.

As shown in FIG. 9, a joint cover pawl receiver 107 is provided around the joint hole 105 on the back side of the upper case 101. The joint cover claw receiver 107 is a portion that engages with the joint cover claw 402 of the joint cover 401.

As shown in FIG. 8, on the front side of the portion forming the upper side of the cleaner mounting portion 3 in the upper case 101, the cleaner mounting surface 108, the cleaner escape recess 109, the dust collecting unit handle escape recess 110, the dust collecting unit. A lever escape recess 111, an inclined portion 112, an exhaust escape recess 113, and a cleaner receiving portion 115 are formed.

The cleaner mounting surface 108 is almost the entire area of the upper surface of the cleaner mounting portion 3 of the upper case 101. The cleaner mounting surface 108 is recessed in a shape matching the outer shape of the electric vacuum cleaner 4. The vacuum cleaner escape recess 109 is a part of the cleaner mounting surface 108 that is in front of the position facing the exhaust port 509 of the electric vacuum cleaner 4. However, the portion of the cleaner mounting surface 108 that faces the exhaust port 509 is included in the exhaust port escape recess 113 described later, and is not included in the cleaner escape recess 109.

The dust collecting unit handle escape recess 110 is a portion of the cleaner mounting surface 108 from a position facing the dust collecting unit handle 532 of the electric vacuum cleaner 4 to the inclined portion 112. At the center of the dust collecting unit handle escape recess 110, there is formed a dust collecting unit lever escape recess 111 further recessed along the front-rear direction.

The dust collecting unit lever escape recess 111 is provided in order to prevent the dust collecting unit lever 533 protruding from the dust collecting unit handle 532 from interfering with the cleaner mounting surface 108 when the vacuum cleaner 4 is attached to the suction tool 1. belongs to. The dust collection unit lever escape recess 111 starts from the bottom surface of the dust collection unit handle escape recess 110, and continues to the slope 112, the exhaust port escape recess 113, and the end of the cleaner mounting portion 3 of the upper case 101. By doing so, when the electric vacuum cleaner 4 is attached to the suction tool 1, it is possible to prevent the dust collection unit lever 533 from operating regardless of the position of the dust collection unit lever 533.

An inclined portion 112 is formed on the rear side of the dust collecting unit handle escape recess 110 of the cleaner mounting surface 108. The inclined portion 112 has a shape in which the front portion is lower and the rear portion is gradually higher. The front end of the inclined portion 112 is smoothly connected to the dust collecting unit handle escape recess 110. The inclined portion 112 configured in this manner is also a portion that smoothly connects the dust collecting unit handle escape recess 110 and the exhaust port escape recess 113.

The exhaust port escape recess 113 is a part rearward from a position facing the exhaust port 509 of the electric vacuum cleaner 4. The exhaust port escape recess 113 is recessed more than the cleaner escape recess 109. Therefore, when the electric vacuum cleaner 4 is attached to the suction tool 1, a gap is formed between the cleaner main body 501 of the electric vacuum cleaner 4 and the exhaust port escape recess 113. This gap serves as an exhaust air passage through which exhaust air from the exhaust port 509 of the electric vacuum cleaner 4 passes.

A cleaner receiving portion 115 is formed at a rear end portion of the cleaner mounting portion 3 of the upper case 101. The vacuum cleaner receiving portion 115 is a portion for supporting the rear portion of the electric vacuum cleaner 4 attached to the suction tool 1. Here, the vacuum cleaner receiving portion 115 is formed in the exhaust port escape recess 113.

As shown in FIG. 9, on the back side of the portion of the upper case 101 forming the upper side of the cleaner mounting portion 3, the cleaner fixing tool rotating surface (upper case side) 116, the cleaner fixing tool shaft 117, the cleaner Fixture support rib (upper case side) 118, vacuum cleaner fixture opening (tilt protrusion side) 119, vacuum cleaner fixture opening (fixation protrusion side) 120, rear wheel chamber (upper case side) 121, and rear wheel bearing (upper) The case side) 122 is formed.

The cleaner fixing tool rotating surface (upper case side) 116 is an end surface of a truncated cone-shaped protrusion formed on each of the left and right sides of the dust collecting unit handle escape recess 110 on the back side of the upper case 101. The cleaner fixing tool rotating surface (upper case side) 116 is a surface for pressing the end surface of the cleaner fixing tool bearing 214 of the cleaner fixing tool 211 described below from the upper side. The cleaner fixing tool rotating surface (upper case side) 116 is formed so as to be parallel to the mounting direction of the electric cleaner 4 on the suction tool 1. By doing so, the vacuum cleaner fixture 211 can be arranged in parallel with the mounting direction of the electric vacuum cleaner 4 to the suction tool 1.

The cleaner fixing tool shaft 117 is provided so as to project from each cleaner fixing tool rotation surface (upper case side) 116. At this time, the protruding direction of the cleaner fixing tool shaft 117 is perpendicular to the cleaner fixing tool rotating surface (upper case side) 116. The cleaner fixing tool shaft 117 serves as a fulcrum when the cleaner fixing tool 211 rotates.

In addition, here, the shape of the vacuum cleaner fixture shaft 117 is a tapered shape. This is because the removal direction of the upper case 101 manufactured by injection molding and the arrangement angle of the cleaner fixing tool 211 are different. By making the shape of the vacuum cleaner fixture shaft 117 a taper having an angle that matches the drawing direction of the upper case 101 during injection molding, the mold of the upper case 101 can be simplified without a slide mechanism. be able to.

Further, the vacuum cleaner fixture shaft 117 also serves as a screw boss used when fastening the upper case 101 and the lower case 261 with screws. By doing so, the strength of the cleaner fixing tool shaft 117, which serves as a fulcrum when the cleaner fixing tool 211 rotates, can be improved, and the cleaner fixing tool 211 can be moved to the upper case 101 and the lower case 261. Can be firmly attached.

The cleaner fixing tool support ribs (upper case side) 118 are formed on the back side of the upper case 101 in front of and behind the cleaner fixing tool turning surface (upper case side) 116, respectively. The cleaner fixing tool support rib (upper case side) 118 is a portion for guiding the movement of an inclined projection 215 and a fixing projection 216, which will be described later, of the cleaner fixing tool 211 when the cleaner fixing tool 211 rotates. Therefore, the cleaner fixing tool support rib (upper case side) 118 has a length that matches the range of movement of the inclined protrusion 215 and the fixing protrusion 216.

A vacuum cleaner fixture opening (on the side of the inclined projection) 119 is formed on each of the left and right side walls of the dust collecting unit handle escape recess 110. The cleaner fixing tool opening (on the side of the inclined projection) 119 is an opening for the inclined projection 215 of the cleaner fixing tool 211 to project to the front side of the upper case 101. Further, a cleaner fixing tool opening (fixed protrusion side) 120 is also formed on each of the left and right side walls of the dust collecting unit handle escape recess 110. The cleaner fixing tool opening (fixing projection side) 120 is an opening through which the fixing projection 216 of the cleaner fixing tool 211 projects to the front side of the upper case 101.

A rear wheel chamber (upper case side) 121 is formed at a rear end portion of the upper case 101. The position where the rear wheel chamber (upper case side) 121 is arranged is on the back side of the vacuum cleaner receiving portion 115. The rear wheel chamber (upper case side) 121 is a space inside a wall member provided so as to surround the front, rear, left, and right sides. Inside the rear wheel chamber (upper case side) 121, an approximately upper half of a rear wheel 241 described later is housed.

Rear wheel bearings (upper case side) 122 are formed at lower ends of left and right wall members that surround the rear wheel chamber (upper case side) 121, respectively. The rear wheel bearing (upper case side) 122 is formed by cutting out the lower end portions of the wall members on the left and right sides of the rear wheel chamber (upper case side) 121 in a semicircular shape. The rear wheel bearing (upper case side) 122 is a portion for supporting a rear wheel shaft 243 of the rear wheel 241 described later.

Next, the configuration of the lower case 261 will be described with reference to FIGS. 10 to 12. The lower case 261 is a member that mainly forms the lower outer shell of the suction tool 1. The lower case 261 integrally forms the lower side of the suction section 2 and the lower side of the cleaner mounting section 3.

In a portion of the lower case 261 that forms the lower side of the suction portion 2, a lower cover storage portion 263, a front suction port (lower case side) 264, a surface-holding rib to be cleaned (lower case side) 265, a rotary brush bearing storage portion. 266 and the rotary brush shaft end bearing 267, the large gear chamber (lower case side) 268, the front wheel chamber (lower case side) 269, the front wheel opening 270, the outer front wheel bearing (lower case side) 271 and the inner front wheel bearing ( Lower case side) 272, central front wheel bearing (lower case side) 273, lower cover stopper mounting portion 274 and riding protrusion (lower case side) 275, finger hook recess 276, and lower cover bearing (lower case side) 277. Are formed.

The lower cover storage portion 263 includes an opening formed in the lower surface of the lower case 261 and a space continuing from the opening to the inside of the lower case 261. The lower cover storage part 263 is a space formed so that a lower cover assembly 311 described later can be stored therein.

A front suction port (lower case side) 264 is formed on the lower surface of the lower case 261 in front of the opening of the lower cover storage portion 263. The lower surface of the lower case 261 where the front suction port (lower case side) 264 is formed is recessed upward from its surroundings, so that an opening is formed in that portion. This opening is the front suction port (lower case side) 264. The front suction port (lower case side) 264 is an opening in front of the suction tool 1 for sucking relatively large dust. The front suction port (lower case side) 264 continues from the front end of the lower cover storage portion 263 to the front end of the lower case 261.

The front suction port (lower case side) 264 is provided with a plurality of cleaning surface pressing ribs (lower case side) 265. Each of the cleaning surface pressing ribs (lower case side) 265 is arranged along the front-rear direction. The surface-to-be-cleaned pressing rib (lower case side) 265 is a part for pressing the surface-to-be-cleaned so as not to suck even the sheets hung on the futon, for example. The position of the lower end of each cleaning surface pressing rib (lower case side) 265 is a surface contacting the front wheel traveling surface 190 of the front wheel assembly 181 and the rear wheel traveling surface 242 of the rear wheel 241 (that is, the surface to be cleaned). On the upper side. By doing so, even when the suction tool 1 is used on a hard surface to be cleaned such as a flooring, the cleaning surface pressing rib (lower case side) 265 can be prevented from hitting the surface to be cleaned.

Rotating brush bearing housings 266 are formed on both left and right sides of the lower cover housing 263. The lower case 261 has an opening formed on each of the left and right sides of the lower cover housing 263 on the lower surface of the lower case 261, and a space continuing from the opening to the inside of the lower case 261. The rotary brush bearing storage portion 266 is a space formed so that a pinion chamber (lower cover side) 319 of the lower cover assembly 311 described later can be accommodated therein. Rotating brush shaft end face bearings 267 are formed on upper portions of the walls provided on the left and right outer sides of the rotating brush bearing housings 266, respectively. The rotary brush shaft end face bearings 267 are portions for pressing both end faces of the rotary brush shaft 356 attached to the left and right sides of the rotary brush assembly 351 described later.

Large gear chambers (lower case side) 268 are provided behind the respective rotary brush bearing housings 266. The large gear chamber (lower case side) 268 is a space for housing approximately the lower half of a large gear (drive gear) 187 of the front wheel assembly 181 described later. Front wheel chambers (lower case side) 269 are provided on the left and right outer sides of the respective large gear chambers (lower case side) 268. The front wheel chamber (lower case side) 269 is a space for housing approximately the lower half of the front wheel portion of the front wheel assembly 181.

The lower end surface of each front wheel chamber (lower case side) 269 is an opening on the lower surface of the lower case 261. An opening at the lower end of each front wheel chamber (lower case side) 269 is a front wheel opening 270. The front wheel opening 270 is for exposing the front wheel running surface 190 of the tire 189 of the front wheel assembly 181 housed in the front wheel chamber (lower case side) 269 from the lower surface of the lower case 261 downward.

Outer front wheel bearings (lower case side) 271 are provided on the left and right outer sides of the respective front wheel chambers (lower case side) 269. Inner front wheel bearings (lower case side) 272 are provided on the left and right center sides of the respective large gear chambers (lower case side) 268. Central front wheel bearings (lower case side) 273 are respectively provided between the left and right large gear chambers (lower case side) 268 and the front wheel chambers (lower case side) 269. These outer front wheel bearings (lower case side) 271, inner front wheel bearings (lower case side) 272 and central front wheel bearings (lower case side) 273 are for supporting the front wheel shaft 186 of the front wheel assembly 181. It is a part.

Lower cover stopper mounting portions 274 are provided on the left and right outer sides of the rotary brush bearing storage portions 266, respectively. The lower cover stopper mounting portion 274 is a part for mounting a lower cover stopper 301 described later. Riding protrusions (lower case side) 275 are provided on the upper sides of the respective lower cover stopper mounting portions 274 (FIG. 12). The riding protrusion (lower case side) 275 has a function of holding and releasing the closed state of the lower cover assembly 311 by being used in combination with a riding protrusion (lower cover stopper side) 303 of the lower cover stopper 301 described later. It is for realization.

On the lower surface of the lower case 261, below the respective riding protrusions (lower case side) 275, finger hook recesses 276 are formed. The finger hook recess 276 is where the finger hook 304, which will be described later, of the lower cover stopper 301 fits. The outer shape of the finger hook recess 276 is a shape that matches the outer shape of the finger hook 304 and the range in which the finger hook 304 slides (the sliding of the finger hook 304 will be described later). Moreover, the finger hooking portion recess 276 is recessed upward with respect to the lower surface of the lower case 261 by a larger amount than the thickness of the finger hooking portion 304. By doing so, the lower end of the finger hook 304 can be positioned above the lower surface of the lower case 261, and contact between the finger hook 304 and the surface to be cleaned can be prevented. Since the finger-holding portion 304 is arranged at a position recessed from the lower surface of the lower case 261, a gentle slope is formed around the finger-holding portion recess 276 in order to make it easier to put a finger on the finger-holding portion 304. ..

Lower cover bearings (lower case side) 277 are formed at the left and right ends of the rear end of the lower cover housing 263, respectively. The lower cover bearing (lower case side) 277 is a part for supporting a lower cover shaft 322 of the lower cover 312, which will be described later.

In a portion of the lower case 261 that forms the lower side of the cleaner mounting portion 3, a cleaner fixing tool rotating surface (lower case side) 278, a cleaner fixing tool supporting rib (lower case side) 279, a rear wheel chamber ( A lower case side 280, a rear wheel opening 281, a rear wheel bearing (lower case side) 282, and a bottom surface recess 283 are formed.

When the upper case 101 and the lower case 261 are combined, a cleaner fixing tool rotating surface (lower case side) 278 is formed at a position facing the cleaner fixing tool shaft 117. The cleaner fixing tool rotating surface (lower case side) 278 is an end surface of the truncated cone-shaped protrusion. The cleaner fixing tool rotating surface (lower case side) 278 is a surface for pressing the end surface of the cleaner fixing tool bearing 214 of the cleaner fixing tool 211 from below. In addition, the cleaner fixing tool rotating surface (lower case side) 278 is formed so as to be parallel to the mounting direction of the electric cleaner 4 to the suction tool 1. By doing so, the vacuum cleaner fixture 211 can be arranged in parallel with the mounting direction of the electric vacuum cleaner 4 to the suction tool 1.

Further, the cleaner fixing tool rotating surface (lower case side) 278 also serves as a screw hole used when fastening the upper case 101 and the lower case 261 with screws. By doing so, the strength of the cleaner fixing tool shaft 117, which serves as a fulcrum when the cleaner fixing tool 211 rotates, can be improved, and the cleaner fixing tool 211 can be moved to the upper case 101 and the lower case 261. Can be firmly attached.

The cleaner fixing tool supporting ribs (lower case side) 279 are formed inside and below the cleaner fixing tool rotating surface (lower case side) 278 inside the lower case 261. The cleaner fixing tool support rib (lower case side) 279 is for guiding the movement of the inclined projection 215 and the fixing projection 216 of the cleaner fixing tool 211 when the cleaner fixing tool 211 rotates. Therefore, the cleaner fixing tool support rib (lower case side) 279 has a length that matches the range in which the inclined protrusion 215 and the fixing protrusion 216 move.

At the rear end portion of the lower case 261, a rear wheel chamber (lower case side) 280 is formed. The rear wheel chamber (lower case side) 280 is arranged at a position facing the rear wheel chamber (upper case side) 121 when the upper case 101 and the lower case 261 are combined. The rear wheel chamber (lower case side) 280 is a space inside a wall member provided so as to surround the front, rear, left, and right sides. Inside the rear wheel chamber (lower case side) 280, a part of the rear wheel 241 below the rear wheel shaft 243 is accommodated.

The lower end surface of the rear wheel chamber (lower case side) 280 is an opening on the lower surface of the lower case 261. The opening at the lower end of the rear wheel chamber (lower case side) 280 is the rear wheel opening 281. The rear wheel opening 281 is for exposing the rear wheel running surface 242 of the rear wheel 241 downward from the lower surface of the lower case 261.

Rear wheel bearings (lower case side) 282 are formed at the upper ends of the left and right wall members that surround the rear wheel chamber (lower case side) 280, respectively. The rear wheel bearing (lower case side) 282 is formed by cutting out the upper ends of the wall members on the left and right sides of the rear wheel chamber (lower case side) 280 in a semicircular shape. The rear wheel bearing (lower case side) 282 is a portion for supporting the rear wheel shaft 243 of the rear wheel 241.

A part of the lower surface of the lower case 261 is recessed upward to form a bottom surface recess 283. By providing a bottom surface recess 283 on the lower surface of the lower case 261, for example, when a soft surface to be cleaned such as bedding and the lower surface of the lower case 261 are made to have a small contact area, the suction tool 1 is moved on the surface to be cleaned. The contact resistance of can be reduced.

As shown in FIGS. 8 and 9, the upper case 101 is provided with a plurality of screw bosses (upper case side) 123 and screw holes (upper case side) 124. Further, as shown in FIGS. 10 and 11, the lower case 261 is provided with a plurality of screw bosses (lower case side) 285 and screw holes (lower case side) 284. These screw bosses and screw holes are arranged such that the corresponding screw bosses and screw holes face each other when the upper case 101 and the lower case 261 are combined.

By fastening with screws using these screw bosses and screw holes, the upper case 101 and the lower case 261 are fixed in a combined state. At this time, the arrangement of the screw bosses and the screw holes is adjusted so that the upper case 101 and the lower case 261 are combined sufficiently firmly.

When the upper case 101 and the lower case 261 are combined, the rear wheel chamber (upper case side) 121 and the rear wheel chamber (lower case side) 280 are combined to form a rear wheel chamber. The rear wheel compartment thus formed is isolated from the other internal space of the suction tool 1.

Next, the configuration of the rotary brush cover 141 will be described with reference to FIGS. 13 and 14. The rotating brush cover 141 is fixed inside the suction unit 2 so as to be sandwiched between the upper case 101 and the lower case 261. The rotary brush cover 141 covers the upper side of the rotary brush assembly 351 attached to the suction unit 2, and collects dust sucked from the suction opening 314 formed on the lower surface of the suction unit 2 and the like in the dust collecting unit of the electric vacuum cleaner 4. It constitutes a part of the route to 531.

The rotary brush cover 141 mainly includes a configuration related to suction of dust and a configuration mainly related to driving of the rotary brush assembly 351. First, the configuration of the rotating brush cover 141 mainly related to the suction of dust will be described. The rotary brush cover 141 mainly includes a rotary brush chamber (rotating brush cover side) 142, an arc wall (rotating brush cover side) 143, a suction air passage (rotating brush cover side) 144, and a joint in connection with dust suction. A member mounting portion 145 and a screw boss (rotating brush cover side) 147 are formed.

A rotary brush chamber (on the side of the rotary brush cover) 142 is formed in the center of the inside of the rotary brush cover 141. The rotating brush chamber (rotating brush cover side) 142 is a space formed so as to cover the upper side of the rotating brush assembly 351. An arc wall (rotating brush cover side) 143 is formed above the rotating brush chamber (rotating brush cover side) 142. The diameter of the arc wall (rotating brush cover side) 143 is larger than the diameter of the circle drawn by the tips of the bristles 354 of the rotating brush assembly 351 described later with a certain margin.

A suction air passage (rotating brush cover side) 144 is formed from the front to the upper side of the rotating brush chamber (rotating brush cover side) 142. The suction air passage (rotating brush cover side) 144 is combined with a suction air passage (lower cover side) 316 to be described later, and constitutes the first part of the path for carrying the dust sucked by the suction portion 2 to the dust collecting unit 531. .. A part of the boundary of the suction air passage (rotating brush cover side) 144 is constituted by the outer wall of the arc wall (rotating brush cover side) 143.

A joint member mounting portion 145 is formed at an upper end portion of the suction air passage (rotating brush cover side) 144. The joint member 371 is mounted on the joint member mounting portion 145. The joint member mounting portion 145 is composed of a wall member that covers a portion of a pipe line 374, which will be described later, provided in the joint member 371, below a joint flange 375. The joint member mounting portion 145 is arranged above the rotating brush chamber (rotating brush cover side) 142.

A seal surface 146 is formed on the upper end of the joint member mounting portion 145. A seal member 391 of the joint member 371, which will be described later, contacts the seal surface 146. Screw bosses (rotating brush cover side) 147 are provided on the front side and the left and right sides of the joint member mounting portion 145. These screw bosses (rotating brush cover side) 147 are used when fastening the joint member 371 to the joint member mounting portion 145 with screws.

Next, in the rotary brush cover 141, mainly in connection with driving of the rotary brush assembly 351, a small gear chamber (rotary brush cover side) 148, an outer rotary brush bearing (rotary brush cover side) 149, and an inner rotary brush bearing. (Rotating brush cover side) 150, large gear chamber (rotating brush cover side) 151, front wheel chamber (rotating brush cover side) 152, outer front wheel bearing (rotating brush cover side) 153, inner front wheel bearing (rotating brush cover side) A side) 154, a central front wheel bearing (rotating brush cover side) 155, and a lower cover bearing (rotating brush cover side) 156.

The small gear chambers (rotating brush cover side) 148 are respectively formed on the left and right sides of the rotating brush chamber (rotating brush cover side) 142. The small gear chamber (rotating brush cover side) 148 is a space formed so as to cover approximately the upper half of the small gear (driven gear) 357 included in the rotating brush assembly 351.

An outer rotating brush bearing (rotating brush cover side) 149 and an inner rotating brush bearing (rotating brush cover side) 150 are provided on both left and right sides of each small gear chamber (rotating brush cover side) 148. The outer rotating brush bearing (rotating brush cover side) 149 and the inner rotating brush bearing (rotating brush cover side) 150 are parts for supporting the rotating brush shaft 356 of the rotating brush assembly 351.

Of these bearings, the outer rotating brush bearing (on the side of the rotating brush cover) 149 that supports both ends of the rotating brush shaft 356 is the main bearing. The bearing surface of the outer rotating brush bearing (rotating brush cover side) 149 is wider than the inner rotating brush bearing (rotating brush cover side) 150. This is because the upper bearing receives the reaction force against the surface to be cleaned, that is, the mass of the suction tool 1 and the electric vacuum cleaner 4 and the operation force of the user.

Large gear chambers (rotating brush cover side) 151 are provided behind the respective small gear chambers (rotating brush cover side) 148. The large gear chamber (rotating brush cover side) 151 is a space formed so as to cover approximately the upper half of the large gear (drive gear) 187 included in the front wheel assembly 181. Front wheel chambers (rotating brush cover side) 152 are provided on the left and right outer sides of the respective large gear chambers (rotating brush cover side) 151. The front wheel chamber (rotating brush cover side) 152 is a space in which approximately the upper half of the front wheel portion of the front wheel assembly 181 is housed.

Outside front wheel bearings (rotating brush cover side) 153 are provided on the left and right outside of each front wheel chamber (rotating brush cover side) 152. Inner front wheel bearings (rotating brush cover side) 154 are provided on the left and right center sides of the respective large gear chambers (rotating brush cover side) 151. Central front wheel bearings (rotating brush cover side) 155 are provided between the front wheel chambers (rotating brush cover side) 152 and the large gear chambers (rotating brush cover side) 151, respectively.

The outer front wheel bearing (rotating brush cover side) 153, the inner front wheel bearing (rotating brush cover side) 154, and the central front wheel bearing (rotating brush cover side) 155 support the front wheel shaft 186 of the front wheel assembly 181. It is a part to do. Among these bearings, the outer front wheel bearings (rotating brush cover side) 153 and the inner front wheel bearings (rotating brush cover side) 154 that support the left and right ends of the front wheel shaft 186 are the main bearings. The bearing surfaces of the outer front wheel bearing (rotating brush cover side) 153 and the inner front wheel bearing (rotating brush cover side) 154 are the same as those of the outer rotating brush bearing (rotating brush cover side) 149. It is wider than the rotating brush cover side) 155.

Lower cover bearings (rotating brush cover side) 156 are provided on the left and right behind the rotating brush chamber (rotating brush cover side) 142, respectively. The lower cover bearing (rotating brush cover side) 156 is a portion for supporting the lower cover shaft 322 of the lower cover 312.

A fixed portion 157 is also formed on the rotary brush cover 141. A plurality of fixed parts 157 are formed around the rotary brush cover 141. The screw boss (upper case side) 123, the screw hole (upper case side) 124, and the recessed portion that covers the tip portions of the screw boss (lower case side) 285 and the screw hole (lower case side) 284 are formed. .. The fixing portion 157 is sandwiched between these screw bosses and screw holes when the upper case 101 and the lower case 261 are fastened with screws. In this way, the fixing portion 157 fixes the rotary brush cover 141 at a predetermined position inside the suction portion 2.

Next, the configuration of the front wheel assembly 181 will be described with reference to FIGS. 15 to 18. The front wheel assembly 181 rotates to the front wheel chamber formed by the front wheel chamber (rotating brush cover side) 152 and the front wheel chamber (lower case side) 269 when the rotary brush cover 141 and the lower case 261 are combined. It is installed freely. The front wheel assembly 181 is for reducing the contact resistance between the suction tool 1 and the surface to be cleaned when the suction tool 1 is moved on the surface to be cleaned to improve operability. Further, the rotational force of the front wheel assembly 181 generated when the suction tool 1 is moved on the surface to be cleaned is used as a drive source for the rotation of the rotary brush assembly 351.

The front wheel assembly 181 is composed of a tire 189 and a member in which a rim 182, a front wheel shaft 186, a large gear (driving gear) 187 and the like, which are main components thereof, are integrally formed. The member in which the rim 182, the front wheel shaft 186, the large gear (drive gear) 187, and the like are integrally formed is made of a hard material such as plastic. The tire 189 is made of a soft material such as elastomer.

The rim 182 has a thick disc shape. An outer flange 183 and an inner flange 184 are formed along the circumference at both ends of the outer peripheral surface of the rim 182. A rotation-stop projection receiver 185 is formed on the outer peripheral surface of the rim 182. The rotation stopper projection receiver 185 is a recess formed on the outer peripheral surface of the rim 182.

A front wheel shaft 186 is provided at the disc-shaped center of the rim 182. The front wheel shaft 186 serves as a rotation fulcrum of the front wheel assembly 181 including the large gear (driving gear) 187 and the tire 189. The front wheel shaft 186 is supported by the outer front wheel bearings 153, 271, the inner front wheel bearings 154, 272, and the central front wheel bearings 155, 273 when the rotating brush cover 141 and the lower case 261 are combined. ..

The front wheel shaft 186 is provided with a large gear (drive gear) 187. The rim 182 and the large gear (driving gear) 187 are coaxial, that is, the rotating shaft of the rim 182 and the rotating shaft of the large gear (driving gear) 187 are common, and this common rotating shaft is the front wheel shaft 186. is there. The large gear (driving gear) 187 is for meshing with the small gear (driven gear) 357 of the rotary brush assembly 351 to transmit power. A disc 188 is provided between the rim 182 of the front wheel shaft 186 and the large gear (driving gear) 187. The disc 188 is also coaxial with the rim 182 and the large gear (driving gear) 187.

A tire 189 is mounted on the outer peripheral surface of the rim 182. The tire 189 is a member that comes into contact with the surface to be cleaned when the suction tool 1 is used. An uneven pattern 191 is formed on the outer peripheral surface of the tire 189. A rotation preventing protrusion 192 is formed on the inner peripheral surface of the tire 189. The anti-rotation protrusion 192 fits into the anti-rotation protrusion receiver 185 of the rim 182 when the tire 189 is mounted on the rim 182. The convex outermost portion of the pattern 191 of the tire 189 forms the front wheel running surface 190.

Next, the configuration of the vacuum cleaner fixture 211 will be described with reference to FIG. The vacuum cleaner fixing tool 211 is for fixing the dust collecting unit handles 532 of the vacuum cleaner 4 from the left and right sides when the vacuum cleaner 4 is mounted on the suction tool 1. When the upper case 101 and the lower case 261 are combined, the cleaner fixture 211 has a cleaner fixture rotation surface (upper case side) 116 and a cleaner fixture rotation surface (lower case side) 278. And is placed between the upper case 101 and the lower case 261.

The cleaner fixing tool 211 includes a pair of left and right symmetrical members and a cleaner fixing tool spring 231. An arm portion 212, a reinforcing rib 213, a cleaner fixing tool bearing 214, an inclined projection 215, a fixing projection 216, a flank 217, and a spring hook 218 are formed on each of the pair of members included in the cleaner fixing tool 211. ing.

The arm portion 212 and the reinforcing rib 213 are main components of the cleaner fixing tool 211, which has a substantially U-shaped cross section. A cleaner fixture bearing 214 is provided at the center of the arm 212 and the reinforcing rib 213 in the front-rear direction. The cleaner fixture shaft 117 formed on the upper case 101 is inserted into the cleaner fixture bearing 214. The inner surface of the cleaner fixing tool bearing 214 is tapered according to the shape of the cleaner fixing tool shaft 117. The cleaner fixing tool 211 is attached so as to be rotatable in both directions within a predetermined range about the cleaner fixing tool bearing 214 as an axis.

The inclined protrusion 215 is formed on the front side of the arm portion 212 so as to protrude toward the center side in the left-right direction. The inclined projection 215 has a function of a cam, and is a portion pushed by the dust collecting unit handle 532 when the electric vacuum cleaner 4 is mounted on the suction tool 1. The fixed protrusion 216 is formed at the rear end portion of the arm portion 212 so as to project toward the center side in the left-right direction. The fixing protrusion 216 is a portion that engages with the handle flange 534 of the dust collecting unit handle 532 when the vacuum cleaner 4 is mounted on the suction tool 1. A flank 217 is formed at the tip of the fixed projection 216 facing the dust collecting unit handle 532. The flank 217 is formed to minimize the area where the fixed protrusion 216 contacts the dust collecting unit handle 532.

The vacuum cleaner fixture spring 231 is a tension coil spring having an initial tension. Round hooks are formed at both ends of the vacuum cleaner fixture spring 231. The round hooks of the cleaner fixing tool spring 231 are hooked on the spring hooks 218 formed at the front ends of the arms 212, respectively. The cleaner fixing tool spring 231 urges the cleaner fixing tool 211 to rotate in a direction in which the inclined protrusion 215 moves inward and the fixing protrusion 216 moves outward.

Next, the configuration of the rear wheel 241 will be described with reference to FIG. The rear wheel 241 is a wide wheel corresponding to the width of the cleaner mounting portion 3. The rear wheel 241 includes a rear wheel running surface 242, a rear wheel shaft 243, and a rear wheel rib 244. The rear wheel running surface 242 is formed as a barrel-shaped surface in which the outer diameters of the left and right ends are smaller than the outer diameter of the central portion. The rear wheel shaft 243 is supported by rear wheel ribs 244 formed on the inner peripheral side of the rear wheel running surface 242, penetrates the inside of the rear wheel 241, and the left and right tips are from the left and right ends of the rear wheel running surface 242. Is also protruding.

The rear wheel 241 has a rear wheel bearing (upper case side) 122 and a rear wheel bearing (lower case side) 282 when the upper case 101 and the lower case 261 are combined at the rear end of the suction tool 1. The rear wheel shaft 243 is sandwiched and rotatably supported. The rear wheel 241 is substantially housed in the rear wheel chamber formed by the rear wheel chamber (upper case side) 121 and the rear wheel chamber (lower case side) 280. The rear wheel 241 is for reducing the resistance between the suction tool 1 and the surface to be cleaned when the suction tool 1 is moved with respect to the surface to be cleaned, and improving the operability.

Next, the configuration of the lower cover stopper 301 will be described with reference to FIG. The lower cover stopper 301 is in a state in which the lower cover assembly 311 is substantially parallel to the lower surface of the lower case 261 in the lower cover storage portion 263 of the lower case 261 (this is referred to as a “closed state of the lower cover assembly 311”). For holding. The lower cover stoppers 301 are slidably mounted on lower cover stopper mounting portions 274 formed on the left and right of the lower case 261.

The lower cover stopper 301 includes a stopper 302, a riding protrusion (on the side of the lower cover stopper) 303, and a finger hook 304. The stopper 302 is a portion that engages with a stopper receiver 324 of the lower cover 312, which will be described later. The ride-on protrusion (lower cover stopper side) 303 is a portion that moves on while riding on the ride-on protrusion (lower case side) 275 when the lower cover stopper 301 is slid in the left-right direction.

When the lower cover stopper 301 is slid so that the riding protrusion (lower cover stopper side) 303 is located closer to the center in the left-right direction than the riding protrusion (lower case side) 275, the stopper 302 is centered in the left-right direction. Project to the side. Then, the protruding stopper 302 is inserted into the stopper receiver 324, and the closed state of the lower cover assembly can be maintained. When the lower cover stopper 301 is slid and the riding protrusion (lower cover stopper side) 303 is located outside the riding protrusion (lower case side) 275 in the left-right direction, the stopper 302 is retracted to stop the stopper 302. Disengages from catch receiver 324. In this state, the closed state of the lower cover assembly can be released.

When the lower cover stopper 301 is slid from the position where the closed state of the lower cover assembly is released to the position where it is released (or vice versa), the riding protrusion (lower cover stopper side) 303 is ) Need to get over 275. This serves as a resistance to slide the lower cover stopper 301, and prevents the lower cover stopper 301 from unintentionally moving from the position where the closed state of the lower cover assembly is held to the position where it is released (or vice versa). be able to.

The finger hook portion 304 is a portion operated by a user when the lower cover stopper 301 is slid. Note that the finger hooking portion 304 fits within the finger hooking portion recess 276 formed in the lower case 261 when the lower cover stopper 301 is mounted on the lower cover stopper mounting portion 274.

Next, the configuration of the lower cover assembly 311 will be described with reference to FIGS. 22 and 23. The lower cover assembly 311 includes a lower cover 312 and an inclined pile 341, which are main components of the lower cover assembly 311. The lower cover assembly 311 is openably and closably mounted in a lower cover storage portion 263 formed in the lower case 261.

The lower cover 312 includes a rotating brush chamber (lower cover side) 313, a suction opening 314, an arc wall (lower cover side) 315, a suction air passage (lower cover side) 316, a front suction port (lower cover side) 317, and a cleaning target. Face-pressing rib (lower cover side) 318, pinion chamber (lower cover side) 319, outer rotating brush bearing (lower cover side) 320, inner rotating brush bearing (lower cover side) 321, lower cover shaft 322, lower cover shaft A slit 323 and a stopper receiver 324 are formed.

The rotary brush chamber (lower cover side) 313 is a space formed so as to cover approximately the lower half of the rotary brush assembly 351. The lower end surface of the rotating brush chamber (lower cover side) 313 is open. This opening is the suction opening 314. The suction opening 314 is formed on the surface of the lower cover 312 that faces the surface to be cleaned. The suction opening 314 is an opening for sucking dust on the surface to be cleaned.

The arc wall (lower cover side) 315 is a wall that closes the rear side of the lower half of the rotating brush chamber (lower cover side) 313. The diameter of the arc wall (lower cover side) 315 is larger than the diameter of the circle drawn by the tip of the bristles 354, which will be described later, of the rotary brush assembly 351 with a certain margin. The suction air passage (lower cover side) 316 is combined with the suction air passage (rotary brush cover side) 144 to form a first portion of a path for carrying the dust sucked by the suction portion 2 to the dust collecting unit 531. The suction air passage (lower cover side) 316 is formed in front of the rotating brush chamber (lower cover side) 313.

A front suction port (lower cover side) 317 is formed below the suction air passage (lower cover side) 316 and the wall portion. The wall portion between the front suction port (lower cover side) 317 and the suction air passage (lower cover side) 316 is recessed above the other portion of the lower surface of the lower cover 312. In this way, a space is formed between the wall portion and a surface obtained by extending the other portion of the lower surface of the lower cover 312, and the lower end surface of the space functions as the front suction port (lower cover side) 317. .. The front suction port (lower cover side) 317 is an opening for sucking relatively large dust in the traveling direction.

The front suction port (lower cover side) 317 is provided with a plurality of cleaning surface pressing ribs (lower cover side) 318. Each of the cleaning surface pressing ribs (lower cover side) 318 is arranged along the front-rear direction. The surface-to-be-cleaned pressing rib (lower cover side) 318 is a portion for pressing the surface to be cleaned so that, for example, even the sheets hung on the futon are not sucked. The positions of the lower ends of the respective cleaning surface pressing ribs (lower cover side) 318 are surfaces contacting the front wheel traveling surface 190 of the front wheel assembly 181 and the rear wheel traveling surface 242 of the rear wheel 241 (that is, the surface to be cleaned). It is on the upper side. By doing so, even when the suction tool 1 is used on a hard surface to be cleaned such as a flooring, the cleaning surface pressing rib (lower cover side) 318 can be prevented from hitting the surface to be cleaned.

The small gear chamber (lower cover side) 319 is formed on each of the left and right sides of the rotating brush chamber (lower cover side) 313. The small gear chamber (lower cover side) 319 is a space formed so as to cover approximately the lower half of the small gear (driven gear) 357 included in the rotating brush assembly 351. An outer rotary brush bearing (lower cover side) 320 and an inner rotary brush bearing (lower cover side) 321 are provided on both left and right sides of each small gear chamber (lower cover side) 319. The outer rotary brush bearing (lower cover side) 320 and the inner rotary brush bearing (lower cover side) 321 are parts for supporting the rotary brush shaft 356 of the rotary brush assembly 351.

Lower cover shafts 322 are provided on the left and right ends of the rear portion of the lower cover 312, respectively. Each of the lower cover shafts 322 projects from the left and right ends of the rear portion of the lower cover 312 toward the left and right outside. Each lower cover shaft 322 is arranged in a lower cover bearing formed by a lower cover bearing (lower case side) 277 and a lower cover bearing (rotating brush cover side) 156. The lower cover shaft 322 is a part that serves as a shaft when the lower cover assembly 311 rotates with respect to the lower case 261.

A lower cover shaft slit 323 is formed at the tip of each lower cover shaft 322. The lower cover shaft slit 323 is provided so that the lower cover shaft 322 can be easily retracted in the axial direction. Accordingly, even if an overload is applied while the lower cover assembly 311 is open, the lower cover assembly 311 can be removed without damage.

Stopper receivers 324 are provided on both left and right front portions of the lower cover 312. Each stopper receiver 324 is arranged on the left and right outside of the pinion chamber (lower cover side) 319. Each stopper receiver 324 is provided with a concave portion that is open to the outside on the left and right. Each stopper receiver 324 is a part into which the stopper 302 of the lower cover stopper 301 is inserted when the lower cover assembly 311 is in the closed state.

An inclined pile attaching portion 325 is formed behind the suction opening 314 on the lower surface of the lower cover 312 (that is, the surface facing the surface to be cleaned). Then, the inclined pile 341 is fixed to the inclined pile attaching portion 325 by using, for example, a double-sided tape or the like. The inclined pile 341 is for removing dust from the surface to be cleaned. The inclined pile 341 is particularly suitable for removing dust entangled in fibers.

Next, the configuration of the rotary brush assembly 351 will be described with reference to FIG. The rotating brush assembly 351 is rotatably attached to a rotating brush chamber configured by combining a rotating brush chamber (rotating brush cover side) 142 and a rotating brush chamber (lower cover side) 313. The rotary brush assembly 351 is for scraping up dust on the surface to be cleaned. The rotary brush assembly 351 includes a flocked support 352, a flocked hair 354, a cap 355, a rotary brush shaft 356, and a small gear (driven gear) 357. The cap 355, the rotating brush shaft 356, and the small gear (driven gear) 357 are integrally formed.

The flocked support tool 352 is a cylindrical member elongated in the axial direction. On the cylindrical surface of the flocked support tool 352, a plurality of flocked attachment grooves 353 are spirally formed. The bristles 354 are attached to the plurality of bristling attachment grooves 353, respectively. The bristles 354 are a bundle of a plurality of fibers, and are members that actually contact the surface to be cleaned.

A member having a cap 355, a rotating brush shaft 356, and a small gear (driven gear) 357 formed integrally with each other is attached to both axial end surfaces of the flocking support 352. The member is attached to the flocked support tool 352, in particular, by attaching the caps 355 to both end surfaces of the flocked support tool 352. Each cap 355 is fixed to the flocked support tool 352 using, for example, an adhesive or the like. The cap 355 prevents the hair transplants 354 mounted in the plurality of hair transplant mounting grooves 353 from falling off from the ends of the hair transplant mounting grooves 353.

A rotary brush shaft 356 is provided so as to project from each cap 355. The rotating brush shaft 356 is arranged along the extension of the shaft of the flocking support 352. The rotating brush shaft 356 is supported by an outer rotating brush bearing and an inner rotating brush bearing. The outer rotating brush bearing is configured by combining an outer rotating brush bearing (rotating brush cover side) 149 and an outer rotating brush bearing (lower cover side) 320. The inner rotating brush bearing is configured by combining an inner rotating brush bearing (rotating brush cover side) 150 and an inner rotating brush bearing (lower cover side) 321. The rotating brush shaft 356 serves as the rotating shaft of the rotating brush assembly 351.

Each rotating brush shaft 356 is provided with a small gear (driven gear) 357. The flocked support tool 352 and each small gear (driven gear) 357 are coaxial, that is, the rotation axis of the flocked support tool 352 and the rotation axis of each small gear (driven gear) 357 are common, and this common rotation axis Is a rotating brush shaft 356. The small gear (driven gear) 357 meshes with the large gear (driving gear) 187 of the front wheel assembly 181, and receives power from the large gear (driving gear) 187.

Next, the configuration of the joint member 371 will be described with reference to FIGS. 25 to 27. As shown in FIG. 6 and the like, the joint member 371 is attached to the upper surface portion of the suction portion 2 of the suction tool 1, and is arranged so as to project upward from the upper surface portion. The joint member 371 is mechanically and air-way connected to the vacuum cleaner suction port 506 of the electric vacuum cleaner 4, and a path for carrying the dust sucked by the suction tool 1 to the dust collecting unit 531 of the electric vacuum cleaner 4. It is a part of the member. The joint member 371 includes a joint 372, a connection latch receiver 373, a conduit 374, a joint flange 375, a screw cutout 376, a seal member mounting portion 377, a plier 378, a plier collar 379, and a joint press rib receiver 380.

The joint 372 is hollow and is formed in a taper shape in which the outer diameter of the tip is smaller than the outer diameter of the root. One end of the joint 372 is connected to the upper end of the conduit 374, and the joint 372 is arranged so as to extend rearward and slightly obliquely upward from one end to the other end. The other end of the joint 372 is connected to the cleaner suction port 506 of the electric vacuum cleaner 4. A connection latch receiver 373 is formed on the upper surface of the joint 372 on the other end side. The connection latch receiver 373 is a recess with which the connection latch 511 of the cleaner suction port 506 is engaged.

The upper end of the conduit 374 is connected to the one end of the joint 372. The pipe line 374 is a part of a route for carrying the dust sucked by the suction tool 1 to the dust collecting unit 531. The duct 374 constitutes an air duct connecting the suction air duct (rotating brush cover side) 144 and the suction air duct (lower cover side) 316, and the joint 372. There is. The pipeline 374 is arranged along the vertical direction.

A joint flange 375 is formed at the lower end of the pipe 374. The joint flange 375 is provided so as to project in the outer peripheral direction over the entire circumference at the lower end portion of the conduit 374. The joint flange 375 is a member that serves as a vertical pressing member when the joint member 371 is mounted on the joint member mounting portion 145 of the rotary brush cover 141. The rear end of the joint flange 375 is connected to the placket 378.

Screw notches 376 are formed in the front portion and the left and right portions of the joint flange 375. The screw cutout 376 is a portion used when fastening the joint member 371 to the joint member mounting portion 145 with a screw. In order to reinforce the screw cutouts 376, a reinforcing rib that connects the joint flange 375 and the pipe line 374 is provided near each screw cutout 376.

In particular, as shown in FIG. 27, a seal member mounting portion 377 is provided at the lower edge portion of the joint flange 375 on the outer periphery of the lower end portion of the conduit 374. The seal member mounting portion 377 is formed in a groove shape over the entire circumference of the joint flange 375. A seal member is attached to the seal member attachment portion 377. The seal member is for preventing air leakage between the joint member 371 and the joint member mounting portion 145.

A placket 378 is provided behind the conduit 374. The placket 378 has a flat plate shape. The pliers 378 are arranged vertically from the rear end of the joint flange 375 to the front portion of the joint 372, on the rear side of the pipe line 374. The placket collar 379 is a part of the entire outer circumference of the placket 378. The fly collar 379 is used to stabilize the engagement of the joint member 371 with the upper case 101 and the joint cover 401.

A joint pressing rib receiver 380 is provided on the front upper surface of the joint 372 in front of the fly 378. The joint pressing rib receiver 380 is a plate-like member that protrudes upward from the upper surface of the front portion of the joint 372. A constant space is formed between the joint pressing rib receiver 380 and the placket 378. The joint holding rib receiver 380 is for stabilizing the engagement between the joint member 371 and the joint cover 401.

Next, the configuration of the joint cover 401 will be described with reference to FIG. The joint cover 401 is attached to the upper surface of the suction part 2 of the suction tool 1 so as to cover the front side of the joint member 371, as shown in FIGS. The joint cover 401 includes a joint cover claw 402, a fly collar receiver 403, and a joint pressing rib 404. The lower surface and the rear surface of the joint cover 401 are open.

Joint cover claws 402 are provided so as to protrude downward on both left and right sides at the lower end of the joint cover 401. The joint cover 401 is mounted on the joint cover mounting portion 106 of the upper case 101 by engaging the joint cover claws 402 with the joint cover claw receivers 107. A front brim receiver 403 is formed on the rear end surface of the joint cover 401. The fly collar receiver 403 is a part for stabilizing the engagement between the joint cover 401 and the fly collar 379 of the joint member 371.

A plurality of joint holding ribs 404 are formed inside the upper surface at the rear end of the joint cover 401. The joint pressing rib 404 projects downward from the inside of the upper surface of the joint cover 401. When the joint cover 401 is attached, the tip of the joint pressing rib 404 enters between the joint pressing rib receiver 380 and the placket 378, and the engagement between the joint cover 401 and the joint member 371 can be stabilized. The upper surface of the joint cover 401 is shaped so as to smoothly connect to the upper surface of the cleaner suction pipe 507 connected to the joint 372.

Next, the configuration of the front cover 421 will be described with reference to FIGS. 29 and 30. The front cover 421 is attached to the front end portion of the upper surface of the suction portion 2 of the suction tool 1, as shown in FIG. The front cover 421 improves the design of the suction tool 1. The upper surface of the front cover 421 is decorated by, for example, painting or silk screen printing. A plurality of front cover claws 422 are provided so as to project downward at, for example, a front end portion and a rear end portion of the front cover 421. By engaging these front cover claws 422 with the front cover claw receivers 103, the front cover 421 is mounted on the front cover mounting portion 102 of the upper case 101.

As shown in FIG. 31, a cleaner fixing convex portion 125 is formed on the front end surface of the dust collecting unit handle escape concave portion 110 of the upper case 101. The vacuum cleaner fixing convex portion 125 is provided so as to project rearward from the upper end portion of the front end surface of the dust collecting unit handle escape concave portion 110. As described above, the cleaner fixing convex portion 125 is a portion inserted into the cleaner fixing convex portion receiver 535 when the electric vacuum cleaner 4 is attached to the suction tool 1.

The configuration of the main part of the suction tool 1 configured as above as a whole will be described in more detail. As described above, the suction tool 1 according to Embodiment 1 of the present invention includes the suction section 2, the joint member 371, and the cleaner mounting section 3. A suction port (suction opening 314) is formed on the lower surface of the suction section 2. The joint member 371 is provided in the suction section 2. One end side of the joint member 371 communicates with the suction opening 314. A cleaner suction pipe 507 of the electric vacuum cleaner 4 is connected to the other end of the joint member 371. The cleaner mounting portion 3 is provided so as to extend rearward from the rear end of the suction portion 2. The cleaner mounting portion 3 supports the cleaner body 501 of the electric vacuum cleaner 4 from below on the upper surface portion (cleaner mounting surface 108).

Then, for example, as shown in FIG. 31 and the like, the cleaner mounting portion 3 includes a rear wheel 241 and a cleaner receiving portion 115. The rear wheel 241 is a wheel provided on the lower surface of the cleaner mounting portion 3. The cleaner receiving portion 115 is provided on the upper surface portion (cleaner mounting surface 108) of the cleaner mounting portion 3. The cleaner receiving portion 115 is a portion that comes into contact with the surface of the cleaner body 501 when the cleaner mounting portion 3 supports the cleaner body 501.

The positions of the rear wheel shaft 243 and the vacuum cleaner receiving portion 115 of the rear wheel 241 in the front-rear direction are such that the vacuum cleaner handle 505 of the vacuum cleaner main body 501 held by the user is in a state where the vacuum cleaner mounting portion 3 supports the vacuum cleaner main body 501. It is located within the range from the front end to the rear end. This point will be described in detail with reference to FIGS. 32 and 33.

In FIG. 32, the broken line indicated by A is the position in the front-rear direction of the front end of the cleaner handle 505 when the cleaner mounting portion 3 supports the cleaner body 501. The broken line indicated by B is the position in the front-rear direction of the rear end of the cleaner handle 505 when the cleaner mounting portion 3 supports the cleaner body 501. The broken line indicated by C is the central position from the front end to the rear end of the cleaner handle 505 when the cleaner mounting portion 3 supports the cleaner body 501. The broken line indicated by D is the position of the rear wheel shaft 243 in the front-rear direction.

As shown in FIG. 32, the position D of the rear wheel shaft 243 in the front-rear direction is arranged between the position A of the front end of the cleaner handle 505 and the position B of the rear end of the cleaner handle 505. Further, here, the position D in the front-rear direction of the rear wheel shaft 243 is arranged between A and B and further to the front side than the central position C from the front end to the rear end of the cleaner handle 505.

Next, as shown in FIG. 33, the position of the vacuum cleaner receiving portion 115 in the front-rear direction is at the position D like the rear wheel shaft 243. That is, the position in the front-rear direction of the rear wheel shaft 243 is arranged immediately below the position in the front-rear direction of the vacuum cleaner receiving portion 115.

Therefore, the position of the cleaner receiving portion 115 in the front-rear direction is also arranged between the position A at the front end of the cleaner handle 505 and the position B at the rear end of the cleaner handle 505. Further, here, the position of the cleaner receiving portion 115 in the front-rear direction is also arranged between A and B and further to the front side than the central position C from the front end to the rear end of the cleaner handle 505. The position of the cleaner receiving portion 115 in the front-rear direction is between the position A at the front end of the cleaner handle 505 and the position B at the rear end of the cleaner handle 505, and at the front and rear of the rear wheel shaft 243. The position in the direction may be on the front side from directly above.

As described above, the positions of the rear wheel shaft 243 of the rear wheel 241 and the cleaner receiving portion 115, which are provided in the cleaner mounting portion 3 supporting the cleaner body 501 from below, in the front-rear direction are set to the front end of the cleaner handle 505. When the user holds the vacuum cleaner handle 505 and moves the suction tool 1 equipped with the electric vacuum cleaner 4 on the surface to be cleaned, the user can place the vacuum cleaner handle 505 on the surface to be cleaned. The pushing force of is firmly received by the vacuum cleaner receiving portion 115 and the rear wheel 241 arranged below the vacuum cleaner handle 505, and the stability during operation can be enhanced.

At this time, in the electric vacuum cleaner 4 of this embodiment, since the electric blower 502 and the rechargeable battery 504, which are relatively heavy, are provided on the rear side of the cleaner main body 501, like the cleaner handle 505, cleaning is performed. The weight of the electric blower 502 and the rechargeable battery 504 can be supported by the machine receiving portion 115 and the rear wheel 241.

Further, since the rear wheel 241 is located under the cleaner handle 505 held by the user, the electric vacuum cleaner with the contact portion between the rear wheel 241 and the surface to be cleaned as a fulcrum with the rear wheel 241 in contact with the surface to be cleaned. It is possible to easily change the direction of the suction tool 1 to which 4 is attached, and it becomes easy to change the direction on the surface to be cleaned. As described above, the stability and the ease of handling of the suction tool 1 to which the electric vacuum cleaner 4 is attached can be improved and the operability can be significantly improved.

At this time, the front and rear positions of the rear wheel shaft 243 and the cleaner receiving portion 115 are arranged on the front side of the center from the front end to the rear end of the cleaner handle 505 so that the user holds the cleaner handle 505. The suction tool 1 equipped with the electric vacuum cleaner 4 can be reliably received with the force of pushing forward on the surface to be cleaned, and the usability can be further improved.

Further, by arranging the front-rear position of the vacuum cleaner receiving portion 115 directly above or in front of the position of the rear wheel shaft 243 in the front-rear direction, the force applied to the vacuum cleaner receiving portion 115 causes the rear wheel shaft 243 to move. Since the suction portion 2 does not act in the direction of lifting the suction portion 2 upward, but acts in the direction of pressing the suction portion 2 against the surface to be cleaned, it is possible to improve stability and operability during operation. In particular, by arranging the front-rear position of the rear wheel shaft 243 directly below the front-rear position of the vacuum cleaner receiving portion 115, the user's pushing force on the cleaner handle 505 and the weight of the cleaner main body 501 can be further reduced. It can be surely supported, and further improvement in stability and operability during operation can be expected.

Note that, as described above with reference to FIG. 20, the rear wheel 241 has a barrel shape in which the diameter at the center in the left-right direction is larger than the diameter at the left and right ends. For this reason, the contact area between the rear wheel running surface 242 and the surface to be cleaned of the rear wheel 241 can be reduced, so that the electric vacuum cleaner 4 is mounted with the rear wheel 241 in contact with the surface to be cleaned. The direction of the suction tool 1 can be changed more easily.

In addition, as shown in FIGS. 34 and 35, the cleaner mounting portion 3 has a width in the left-right direction smaller than that of the suction portion 2, and even when compared with the cleaner body 501 of the electric vacuum cleaner 4, the cleaner body 501. The width in the left-right direction is smaller. Therefore, while supporting the cleaner body 501 from below, the amount of material required for the cleaner mounting portion 3 can be reduced, and the mass of the suction tool 1 as a whole can be reduced to improve operability. ..

Further, when the vacuum cleaner 4 is attached to the suction tool 1, most of the cleaner attachment portion 3 is hidden under the cleaner main body 501 and cannot be seen from the user's point of view, so that it is more sophisticated for the user. You can give a positive impression. Further, when used on a soft surface to be cleaned such as bedding, the contact area between the cleaner mounting portion 3 and the surface to be cleaned becomes small, so the contact resistance when the suction tool 1 is moved on the surface to be cleaned. Can be reduced.

As shown in FIG. 34 and the like, a bottom surface recess 283 that is recessed upward is formed on the lower surface of the cleaner mounting portion 3. For this reason, the portion where the bottom surface recess 283 is formed is less likely to come into contact with a soft surface to be cleaned such as bedding, so that further reduction in contact resistance can be expected.

1 Suction tool 2 Suction part 3 Vacuum cleaner mounting part 4 Electric vacuum cleaner 101 Upper case 102 Front cover mounting part 103 Front cover claw receiving 104 Front cover claw hole 105 Joint hole 106 Joint cover mounting part 107 Joint cover claw receiving 108 Vacuum cleaner mounting Surface 109 Vacuum cleaner escape recess 110 Dust collecting unit handle escape recess 111 Dust collecting unit lever escape recess 112 Inclined part 113 Exhaust port escape recess 115 Vacuum cleaner receiving part 116 Vacuum cleaner fixture rotation surface (upper case side)
117 Vacuum cleaner fixture shaft 118 Vacuum cleaner fixture support rib (upper case side)
119 Vacuum cleaner fixture opening (tilt protrusion side)
120 Vacuum cleaner fixture opening (fixed protrusion side)
121 Rear wheel room (upper case side)
122 Rear wheel bearing (upper case side)
123 screw boss (upper case side)
124 Screw hole (upper case side)
125 Vacuum cleaner fixed convex portion 141 Rotating brush cover 142 Rotating brush chamber (rotating brush cover side)
143 arc wall (rotating brush cover side)
144 Suction air passage (rotating brush cover side)
145 Joint member mounting portion 146 Sealing surface 147 Screw boss (rotating brush cover side)
148 Pinion chamber (rotating brush cover side)
149 Outer rotary brush bearing (rotary brush cover side)
150 inner rotating brush bearing (rotating brush cover side)
151 Large gear room (rotating brush cover side)
152 front wheel room (rotating brush cover side)
153 Outer front wheel bearing (rotating brush cover side)
154 Inner front wheel bearing (rotating brush cover side)
155 Central front wheel bearing (rotating brush cover side)
156 Lower cover bearing (rotating brush cover side)
157 Fixed part 181 Front wheel assembly 182 Rim 183 Outer flange 184 Inner flange 185 Anti-rotation projection receiver 186 Front wheel shaft 187 Large gear (drive gear)
188 Disc 189 Tire 190 Front wheel traveling surface 191 Pattern 192 Anti-rotation protrusion 211 Vacuum cleaner fixing tool 212 Arm 213 Reinforcing rib 214 Vacuum cleaner fixing tool bearing 215 Inclined projection 216 Fixing projection 217 Flank surface 218 Spring hooking part 231 Vacuum cleaner fixing Tool spring 241 Rear wheel 242 Rear wheel running surface 243 Rear wheel shaft 244 Rear wheel rib 261 Lower case 263 Lower cover storage section 264 Front suction port (lower case side)
265 Cleaning surface pressing rib (lower case side)
266 rotating brush bearing housing 267 rotating brush shaft end face bearing 268 large gear chamber (lower case side)
269 Front wheel room (lower case side)
270 front wheel opening 271 outer front wheel bearing (lower case side)
272 Inner front wheel bearing (lower case side)
273 Central front wheel bearing (lower case side)
274 Lower cover stopper mounting part 275 Riding protrusion (lower case side)
276 Finger hook recess 277 Lower cover bearing (lower case side)
278 Vacuum cleaner fixture rotation surface (lower case side)
279 Vacuum cleaner fixture support rib (lower case side)
280 Rear wheel room (lower case side)
281 Rear wheel opening 282 Rear wheel bearing (lower case side)
283 Bottom recess 284 Screw hole (lower case side)
285 screw boss (lower case side)
301 Lower cover stopper 302 Stop portion 303 Riding protrusion (lower cover stopper side)
304 Finger hook 311 Lower cover assembly 312 Lower cover 313 Rotating brush chamber (lower cover side)
314 Suction opening 315 Arc wall (lower cover side)
316 Suction air passage (lower cover side)
317 Front suction port (lower cover side)
318 Cleaning surface pressing rib (lower cover side)
319 Pinion chamber (lower cover side)
320 Outer rotary brush bearing (lower cover side)
321 Inner rotating brush bearing (lower cover side)
322 Lower cover shaft 323 Lower cover shaft slit 324 Stopper receiver 325 Inclined pile affixing section 341 Inclined pile 351 Rotary brush assembly 352 Flocked support 353 Flocked mounting groove 354 Flocked 355 Cap 356 Rotational brush shaft 357 Small gear (driven gear)
371 Joint member 372 Joint 373 Connection latch receiver 374 Pipe line 375 Joint flange 376 Screw notch 377 Seal member mounting portion 378 Pliers 379 Pliers brim 380 Joint presser rib receiver 391 Seal member 401 Joint cover 402 Joint cover claw 403 Pliers flange receiver 404 Joint presser Rib 421 Front cover 422 Front cover claw 501 Vacuum cleaner body 502 Electric blower 503 Control board 504 Rechargeable battery 505 Vacuum cleaner handle 506 Vacuum cleaner suction port 507 Vacuum cleaner suction pipe 508 Suction pipe discharge port 509 Exhaust port 510 Detachment button 511 Connection latch 512 Vacuum cleaner convex portion 513 Charging terminal 520 Battery unit 521 Blower casing 522 Battery casing 523 Dust collecting casing 531 Dust collecting unit 532 Dust collecting unit handle 533 Dust collecting unit lever 534 Handle flange 535 Vacuum cleaner fixing convex receiver 536 Partition wall 537 Dust collecting chamber

Claims (3)

A suction part with a suction port formed on the lower surface,
A joint member which is provided in the suction part, one end side of which communicates with the suction port and the other end of which is connected to the suction pipe of the electric vacuum cleaner,
A cleaner mounting portion that is provided to extend rearward from a rear end of the suction portion and that supports a cleaner body of the electric vacuum cleaner from below from an upper surface portion,
The vacuum cleaner mounting portion,
Wheels provided on the lower surface of the cleaner mounting portion,
A cleaner receiving portion that is provided on the upper surface portion and is in contact with a surface of the cleaner body when the cleaner mounting portion supports the cleaner body;
The front and rear positions of the wheel shaft and the cleaner receiving portion in the front-rear direction are the front end and the rear end of the cleaner handle of the cleaner body held by the user when the cleaner mounting portion supports the cleaner body. Within the range up to, and are respectively arranged below the rechargeable battery of the cleaner body,
The position in the front-rear direction of the vacuum cleaner receiving portion is arranged immediately above or in front of the position in the front-rear direction of the shaft of the wheel .
Wherein the lower surface of the cleaner receiving unit, a suction device having a recess Ru is formed recessed upward. The positions of the wheel shaft and the cleaner receiving portion in the front-rear direction are arranged in front of the center from the front end to the rear end of the cleaner handle in a state where the cleaner mounting portion supports the cleaner body. The suction tool according to claim 1. The suction tool according to claim 1 or 2, wherein the wheel has a shape in which the diameter at the center in the left-right direction is larger than the diameter at both left and right ends.

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