JP2010035829A - Suction port body and vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction port body capable of cleaning over the whole width of the suction port body without damaging walls, furniture, or the like by reducing an impact in collision between the side surfaces of the suction port body with the walls, the furniture, or the like when cleaning the floor by the wall and the furniture in a room. <P>SOLUTION: This suction port body includes a suction port and a front-side suction port bored in a case body, a rotary cleaning body rotatably journaled facing both of the suction ports, a pair of journal sections journaling both sides of the rotary cleaning body, a pair of slide contact sections covering the pair of journal sections and coming into contact with a surface to be cleaned, a pair of driving wheels provided outside the journal sections, respectively, a front cover covering the front-side suction port and turnably attached to the front surface of the case body to form a space section towards the rotary cleaning body and an air flow passage towards the slide contact sections, bumpers provided at the side surfaces of the case body and disposed facing the side surfaces of the drive wheels, and buffer materials provided at least one of the driving wheels and the bumpers. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a suction port body and a vacuum cleaner, and more particularly, to a suction port body including a bumper that reduces an impact when contacting a wall or furniture of a room, and a vacuum cleaner including the same.

  Conventionally, this type of vacuum cleaner includes a vacuum cleaner body that houses an electric blower, and the vacuum cleaner body is provided with a dust collecting portion that communicates with the suction side of the electric blower. The hose body, the extension pipe, and the suction port body as the suction port body are sequentially connected to the main body suction port.

  A conventional suction port body is provided with a rotating brush that rotates by driving a motor, cleans a carpet or the like, and is connected to a connection pipe. A wheel is provided at the suction port of the suction port body, and a bumper is formed of soft vinyl chloride or the like so as not to damage furniture or the like during cleaning.

  However, when the bumper collides with a wall or furniture when cleaning the edge of the wall or furniture of the room, the space cannot be reduced between the wall and furniture and the suction port. The dust present at the time may not be sufficiently sucked.

  Therefore, the bumper provided at the front part of the suction port has an urging force so that a suction flow path is formed between the front wall of the suction port and the floor surface when the bumper abuts against a wall or furniture. There has been proposed a floor brush that moves rearward, transfers suction force to furniture, etc., and removes dust, and does not generate dust residue (see, for example, Patent Document 1).

  In addition, in order to be able to easily suck in dust on the wall and to remove dust accumulated in the corners of the walls perpendicular to each other, the bumper protrudes to the outer periphery on the front and side surfaces of the suction inlet body. A suction port body has been proposed in which a front suction opening is provided on the front surface of the suction port body below the bumper, a front suction opening is provided on the side surface of the suction port body, and a protrusion projecting to the outer periphery is positioned below the bumper. (For example, refer to Patent Document 2).

    However, the one described in Patent Document 1 does not have a buffering action of collision between the wall, furniture, etc. and the side surface of the suction inlet body when cleaning the wall or furniture, and the wall, furniture, etc., and the suction inlet. It does not reduce the impact at the time of collision with the side of the main body and prevent the wall, furniture, etc. from being damaged.

Moreover, since the thing of patent document 2 provides a bumper in the outer periphery at the front surface and side surface of a suction inlet main body, a rotary cleaning body is pivotally supported facing a suction inlet and a front side suction inlet, and the outer side of this rotary cleaning body In addition, the drive wheel cannot be provided via the shaft support part, and the front cover cannot be provided so as to be rotatable so as to form a space between the rotary cleaning body and the bearing part. Not only can it not be cleaned at the full width, but also because the bumper is directly attached to the inlet body, it cannot fully exert a buffering effect and cannot prevent damage to walls, furniture, etc. .
Japanese Patent Laid-Open No. 10-43098 JP 2003-16497A

  The present invention has been made in view of the above, and reduces the impact at the time of collision between a wall, furniture, etc. and the side surface of the suction inlet body when cleaning the wall or furniture, and damages the wall, furniture, etc. An object of the present invention is to provide a suction port body that can be cleaned in the full width of the suction port body and a vacuum cleaner including the same.

  In addition, the present invention reduces the impact when the wall, furniture, etc. and the side of the suction inlet body collide, such as when cleaning the wall or furniture of the room, without damaging the wall, furniture, etc. It aims at providing the vacuum cleaner provided with the suction inlet body which can clean in the full width of a suction inlet body.

  In order to achieve the above-described object, a suction port according to the present invention includes a case body, a suction port formed in the case body, a front suction port communicating with the suction port, the suction port, and the front suction port. A rotary cleaning body that is rotatably supported facing the mouth, a pair of shaft support parts that support both sides of the rotary cleaning body, and a cover that covers the pair of shaft support parts and is provided at a lower portion of the case body. And a pair of sliding contact portions in contact with the surface to be cleaned, a pair of driving wheels respectively provided on the outside of the shaft support portion, and a space portion between the rotary cleaning body and an air passage between the sliding contact portions. A front cover that covers the front suction port and is rotatably attached to the front surface of the case body, and is disposed on a side surface of the case body so as to face the side surface of the drive wheel. A small bumper and a small gap between the drive wheel and the bumper. Characterized in that it comprises a Kutomo provided on one cushioning material.

  In addition, a vacuum cleaner according to the present invention includes a vacuum cleaner body that houses an electric blower, and the suction port body that is connected to the suction side of the electric blower with respect to the vacuum cleaner body. And

  According to the suction port body according to the present invention, the wall, furniture, etc. are damaged by reducing the impact at the time of collision between the wall, furniture, etc. and the side surface of the suction port body, when cleaning the wall or furniture. Without being attached, it is possible to provide a suction port body that can prevent the drive wheel from being damaged and distorted, and that can clean the entire width of the suction port body, and a vacuum cleaner including the same.

  One embodiment of a suction mouth object concerning the present invention and a vacuum cleaner provided with the same is described with reference to an accompanying drawing.

  FIG. 1 is a conceptual diagram of a vacuum cleaner according to an embodiment of the present invention, FIG. 2 is a perspective view of a suction port body according to an embodiment of the present invention, and FIG. 3 is a longitudinal sectional view of the suction port body. FIG. 4 is a bottom view of the suction port body, and FIG. 5 is a perspective view of the suction port body according to an embodiment of the present invention as viewed from the lower surface.

  As shown in FIG. 1, the electric vacuum cleaner 51 of the present embodiment includes a vacuum cleaner body 52, and the vacuum cleaner body 52 is dust that is sucked together with intake air generated by driving an electric blower 53 accommodated therein. Is collected in the dust collector.

  The cleaner main body 52 houses a control circuit (not shown) as a control means for controlling the operation of the electric blower 53, and a main body inlet 54 for sucking air from the outside is opened at the front. The main body suction port 54 is connected to an elongate substantially cylindrical hose body 55 that is flexible and can be bent.

  A hand operation unit 56 capable of selecting an operation mode of the electric blower 53 is provided at the tip of the hose body 55. A gripping portion 57 that is gripped by an operator when cleaning is projected from the proximal operation portion 56 toward the proximal end side, and a predetermined signal is transmitted to the control circuit to the gripping portion 57 to clean the cleaner. A plurality of setting buttons 58 for setting the electric blower 53 and the like in the main body 52 to a plurality of operation modes are provided.

  Further, a telescopic and elongated cylindrical extension tube 59 is detachably connected to the distal end of the hand operation unit 56. That is, the extension pipe 59 is connected to the suction side of the electric blower 53 via the hose body 55. Further, the extension brush 59 is placed on the tip of the extension pipe 59 on, for example, a floor carpet as a surface to be cleaned in the room, and the floor brush 1 as a suction port body of the present invention for sucking dust on the carpet. Are connected in a detachable manner.

  Therefore, the floor brush 1 is connected to the suction side of the electric blower 53 through the extension pipe 59, the hose body 55, and the main body suction port 54.

  As shown in FIG. 2, the floor brush 1 as a suction port body includes a horizontally long case body 2 as a suction port body and a connection pipe 3 provided at the rear part of the case body 2.

  The case body 2 covers the lower case 4 that is open on the upper side and forms the lower part of the case body 2, and the rear side of the upper part of the lower case 4, and holds the connecting pipe 3 between the lower case 4 in a freely rotatable manner. A case 5 and a front cover 6 as a lid attached to the front portion of the upper case 5 are provided. Bumpers 12a and 12b described later are provided on a side surface 2a of the case body 2.

  As shown in FIGS. 3 and 4, the lower case 4 is formed with a horizontally-long rectangular suction port 8 </ b> A that accommodates a rotary brush 7 that is a rotary cleaning body at the front end portion thereof, extending in the width direction, and is notched. The front suction port 8B is formed in communication with the suction port 8A. Therefore, the rotating brush 7 is accommodated facing the suction port 8A and the front suction port 8B. Both the suction ports 8A and 8B are communicated with the connection pipe 3 through the communication path R.

  Further, wheel accommodating portions 11a and 11b that accommodate the drive wheels 10a and 10b are formed with a pair of sliding contact portions 9a and 9b provided at both ends of the suction port 8A. The bumpers 12a and 12b provided on the side surface 2a of the case body 2 are made of a softer material than the case body 2, and are provided so as to overlap a part of the outer side of the lower case 4 including the side surface portions of the wheel housing portions 11a and 11b. It arrange | positions facing the side surface of drive wheel 10a, 10b.

  Since the bumpers 12a and 12b have the same structure, the bumper 12b will be described in more detail.

As shown in FIGS. 4-7, the bumper 12b is a substantially headphone shape, overlapping a portion of the outer mounting portion 12b ₁ of the lower case 4 of the bumper 12b, in a free end state to the distal end of the mounting portion 12b ₁ A substantially circular wheel cover portion 12b ₂ that covers the side surfaces of the drive wheels 10a and 10b in a separated state, and a front cover portion that extends inward from the wheel cover portion 12b ₂ and covers the front surface of the drive wheel 10b in a spaced state. consists 12b ₃ Prefecture, wheel cover portion 12b ₂ is opposed to the wheel body 10b ₁ made of hard synthetic resin of the driven wheels 10b to cover the driving wheel 10b.

FIG. 8 shows a state in which a part of a short-haired non-woven cloth 34b attached to the wheel body 10b ₁ is cut out and attached to a damper of a cushioning material. As shown in FIG. 8, the drive wheel 10b, the bumper 12b, at least one of between, for example, the wheel cover portion 12b ₂ of the bumper 12b are cushioning member 13b of the soft is attached than the bumper 12b.

  Therefore, even when the bumpers 12a and 12b hit the walls and furniture, the shocks to the walls and furniture are small due to the action of the cushioning materials 13a and 13b, so that they are not damaged, and the case body 2 and the drive wheels 10a, The impact on 10b is also absorbed.

On one side near the rear side of the lower case 4, wheels 14 that can contact the floor surface are provided. Further, a pair of cover bodies 15a and 15b are detachably screwed to the lower case 4 by screws 15a ₁ and 15b ₁ on the lower surface side facing the floor surface.

  As shown in FIG. 9, the case body 2 includes a driving source that is an electric part as driving means, that is, a motor 16, a rotating brush 7 as a rotating cleaning body rotated by the motor 16, and the rotating brush 7. Drive wheels 10a and 10b, which are positioned at both ends of the rotary brush 7 and rotatable integrally with the rotary brush 7, and a safety device 17 serving as a safety switch for the rotary brush 7 are provided.

  The safety device 17 includes a wheel 14 that can contact the floor surface, and the wheel 14 is exposed from the hole 4 a to the lower side of the lower case 4. Further, the safety device 17 is electrically connected to the motor control unit, and allows the motor control unit to drive the motor 16 when the wheel 14 comes into contact with the floor surface, and the wheel 14 is separated from the floor surface. Then, the motor control unit is configured not to permit driving of the motor 16. Further, the safety device 17 detects the traveling direction of the floor brush 1 based on, for example, the rotational direction of the wheel 14 in contact with the floor surface, and switches the rotational direction of the rotating brush 7 according to the traveling direction. It is possible to output a signal.

  As shown in FIG. 10, a wall portion 18 that rises substantially vertically toward the upper case 5 is formed at the rear portion of the suction port 8 </ b> A of the lower case 4.

  The lower case 4 is formed with shaft support portions 19a, 19b on the back surface of the sliding contact portions 9a, 9b at the positions of both side portions of the suction port 8A. The shaft support portions 19a, 19b Further, arc-shaped bearing grooves 21a and 21b for rotatably supporting the bearing disc 20a and the bearing disc 20b shown in FIG. 11 are formed.

  The shaft support portions 19a and 19b are provided with pulley housing grooves 22a and coupling housing grooves 22b adjacent to the inner sides of the bearing grooves 21a and 21b, respectively.

  Therefore, the rotary body assembly 23 shown in FIG. 11 can be accommodated in the suction port 8A, the pulley accommodating groove 22a, the coupling accommodating groove 22b, and the wheel accommodating portions 11a and 11b provided in the lower case 4.

  As shown in FIG. 11, the rotating body assembly 23 includes a rotating brush 7 that is rotatably supported on both sides by a connecting shaft 24, and a coupling 25a provided on one side (left side in the figure) of the rotating brush 7. A driven pulley 26 fixed to the side and having a surface formed in a gear tooth shape, a bearing disk 20a connected to the driven pulley 26, and a drive wheel 10a provided outside the bearing disk 20a, These are all attached to the connecting shaft 24.

  On the other hand, the other side (right side in the figure) of the rotating brush 7 is similarly provided with a coupling 25b, a bearing disc 20b, and a driving wheel 10b, which are attached to a connecting shaft (not shown).

  The rotary brush 7 has a plurality of cleaning members 32 attached around a substantially cylindrical rotary brush assembly 31 as an attachment member. The rotating brush assembly 31 is made of, for example, metal or synthetic resin. Further, on the outer peripheral surface of the rotary brush assembly 31, a groove portion 33 that holds the proximal end side of each cleaning member 32 is formed in a spiral shape substantially uniformly in the circumferential direction.

  The cleaning member 32 is, for example, a blade that is a wiping member, brush hair that is a scraping member, or a combination thereof, and the base end side is held in the groove portion 33 of the rotating brush assembly 31, respectively. With respect to the outer peripheral surface of 31, a spiral wall shape along the axial direction of the rotary brush assembly 31, and the distal end side protrudes in the radial direction of the rotary brush assembly 31.

As shown in FIG. 7 and FIG. 12, the drive wheels 10a and 10b have short bristle non-woven fabrics 34a and 34b attached to the outer peripheral surface of a cylindrical wheel body 10b ₁ having a flat outer peripheral surface, and the non-woven fabric 34a. , 34b, long-haired non-woven fabrics 35a, 35b are attached in a strip shape with an angle of, for example, 20 to 30 ° inclined in the rotational direction.

  As shown in FIG. 13, in a state where the rotating body assembly 23 is housed in the lower case 4, bearing disks 20a and 20b are rotatably housed and supported in the bearing grooves 21a and 21b, and the pulley housing groove 22a is accommodated in the pulley housing groove 22a. 9, a driven pulley 26 that is fitted and fixed to the connecting shaft 24 (FIG. 10) and rotated by a belt 28 that travels by the motor 16 and the drive pulley 27 shown in FIG. 9 is rotatably accommodated, and further, a pulley accommodating groove. The shaft side coupling 25a is accommodated in 22a, the coupling 25b shown in FIG. 9 is accommodated in the coupling accommodation groove 22b, and the drive wheels 10a and 10b are accommodated in the wheel accommodating portions 11a and 11b.

  Therefore, the rotary brush 7 and the drive wheels 10a and 10b are rotatably supported by the shaft support portions 19a and 19b via the bearing disks 20a and 20b and the bearing grooves 21a and 21b. Further, the rotating brush 7 and the driving wheel 10b can be easily detached from the lower case 4 integrally or separated by the coupling 25b (FIG. 10).

  The front cover 6 is formed in a horizontally long shape extending between both ends of the shaft support portions 19a and 19b, and is curved in an arc shape along the outer periphery of the rotary brush 7 and the sliding contact portions 9a and 9b in a sectional view (FIG. 3). is doing. The front cover 6 covers the front suction port 8B so that the air passages P, P are formed between the space portion S and the sliding contact portions 9a, 9b between the front cover 6 and the case body 2. It is attached to the front of the machine so as to be rotatable.

  As shown in FIG. 10, the front cover 6 can be pivotally attached to the case body 2 through a plurality of attachment portions 6 a provided on the front cover 6 and a plurality of attachment portions 4 b provided on the lower case 4. The mounting shaft 2a is used to constantly bias the front cover 6 forward by a torsion spring (not shown) to which the mounting shaft 2a is attached.

Further, substantially L-shaped bent portions 6b and 6b are provided at both ends of the front cover 6, and the bent portions 6b and 6b are slidable contact portions 9a and 9b (FIG. 4) and shaft support portions 19a and 19b. The outer end portions 19a ₁ and 19b ₁ are reached.

Therefore, the end portions of the air passages P and P are substantially closed by the bent portions 6b and 6b. The bent portions 6b and 6b are provided with small notches 6b ₁ and 6b ₁ so as not to hit a part of the rotating body assembly 23 when the front cover 6 is retracted.

  Again, as shown in FIGS. 7 and 12, the surfaces of the sliding contact portions 9a and 9b have a smooth planar shape, and further, arc portions are connected to this plane, and the front side of the planar sliding contact portions 9a and 9b ( A short raised cloth 36a, 36b with short hair is attached to the advancing side of the floor brush at the time of cleaning, and long hairs longer than the short raised cloth 36a, 36b are placed behind the short raised cloths 36a, 36b. Blankets 37a and 37b are attached.

  When the lower surface of the case body 2 is not in contact with the surface to be cleaned, the tips of the short raised fabrics 36a and 36b are lower than the tips of the long raised fabric (close to the lower surface) and a step is provided between the two tips. This makes the sliding contact portions 9a and 9b easier to slip and makes it easier to scrape hairs entangled with the carpet surface at the tips of the short raised fabrics 36a and 36b when the floor brush 1 is retracted. Further, the tips of the short raised fabrics 36a and 36b and the tips of the long raised fabrics 37a and 37b are both directed backward (retreat side of the floor brush during cleaning).

  In addition, on the extension line | wire of the running direction of the short raising cloth 36a, 36b and the long raising cloth 37a, 37b of the cover bodies 15a and 15b shown in FIG. Make driving easier.

  Next, cleaning using the electric vacuum cleaner according to the present invention will be described.

  As shown in FIG. 1, at the time of cleaning, an operator first connects the hose body 55, the extension pipe 59, and the floor brush 1 to the main body inlet 54 of the cleaner body 52 in order.

  Further, when the operator pulls out the power cord from the cleaner main body 52 and connects it to an unillustrated outlet, and then grips the grip portion 57 and operates the predetermined setting button 58, the operation mode set by the setting button 58 is set. Accordingly, the electric blower 53 is driven.

  Then, the operator grips the grip portion 57 and causes the floor brush 1 to run forward and backward on the floor surface. The drive wheels 10a and 10b rotate to help the floor brush 1 travel.

  As the floor brush 1 travels, dust is sucked together with air from the suction port 8A, the front suction port 8B, and the wheel housing portions 11a and 11b.

  As shown in FIG. 4, at this time, since the sliding contact portions 9a and 9b face downward, the sliding contact portions 9a and 9b abut against the surface to be cleaned and are further attached to the sliding contact portions 9a and 9b. The floor brush 1 is smoothly advanced and retracted without increasing the running load through the long raised cloths 37a and 37b.

  As shown in FIG. 9, the rotating brush 7 and the driving wheels 10 a and 10 b can be rotated by the function of the safety device 17 because the wheel 14 is in contact with the floor surface. For example, when the floor brush 1 travels forward (forward), the wheel 14 rotates forward (forward), and when the floor brush 1 travels backward (retreats), the wheel 14 Since the vehicle rotates backward (reversely), the motor control unit controls the rotation direction of the motor 16 to be the same as the rotation direction of the wheel 14 according to the rotation direction of the wheel 14.

  As a result, the rotation of the motor 16 is transmitted to the driven pulley 26 via the drive pulley 27 and the belt 28, so that one of the drive wheels 10a connected to the driven pulley 26 also passes through the coupling 25a. Thus, the rotating brush 7 and the other driving wheel 10b connected to the rotating brush 7 are integrally rotated in the same direction.

  As shown in FIG. 10, at this time, as the rotary brush 7 rotates, each cleaning member 32 scrapes the dust on the floor surface and carries it to the suction port 8A, and the short hair attached to the drive wheels 10a and 10b. The dust removed by the non-woven cloths 34a and 34b and the long-haired non-woven cloths 35a and 35b is carried to the suction port 8A through the communication groove 8a.

  As shown in FIG. 7 and FIG. 12, cleaning is performed with the short brushed fabrics 36 a, 36 b and the long brushed fabrics 37 a, 37 b attached to the sliding contact portions 9 a, 9 b, and cleaning is performed with almost the entire width of the floor brush 1. In particular, when cleaning the carpet, hair entangled with the carpet surface in contact with the sliding contact portions 9a, 9b is difficult to remove by the negative pressure (suction force) generated in the suction port 8A, but the short raised cloth 36a, The tip of 36b becomes almost the same height as the tip of the long raising cloths 37a, 37b, and the hair entangled with the carpet surface at the tip of the short raising cloths 36a, 36b when the floor brush 1 runs backward (retreats). Can be scraped off.

  Further, by arranging the short raised cloths 36a and 36b on the front side of the sliding contact portions 9a and 9b and the long raised cloths 37a and 37b on the rear side, the long raised cloth 37a can be used when the floor brush 1 runs backward (retreats). , 37b smoothly slides the floor brush 1 and scrapes the hair entangled with the carpet surface at the tips of the short raised cloths 36a, 36b, so that the running surfaces of the sliding contact portions 9a, 9b can be cleaned without increasing the running load. In addition, since the long raised cloths 37a and 37b that are always in contact with the surface to be cleaned use long hairs, it is possible to extend the life even if they are worn.

As shown in FIG. 8, in the above cleaning process, cleaning of the wall of the room and the like is further performed, but a shock absorber 13 b is attached to the wheel cover portion 12 b ₂ of the bumper 12 b, and the bumpers 12 a and 12 b are Even when it hits a wall, furniture, etc., the shock absorbing action of the cushioning members 13a, 13b reduces the impact on the wall, furniture, etc., so that they are not damaged, and the impact on the case body 2 is also absorbed. Moreover, damage and distortion of the drive wheels 10a and 10b can be prevented.

  As shown in FIG. 5, the bumpers 12a and 12b are made of a soft material as compared with the case body 2, so that the impact at the time of collision is smaller, and further, when the bumpers 12a and 12b are in contact with walls, furniture, etc. Instead, the floor brush 1 advances and retreats smoothly.

  Further, when cleaning the room wall or the like, the floor brush 1 moves forward, the front cover 6 comes into contact with the wall, and the front cover 6 moves backward. By this retreat, the space portion S formed between the front cover 6 and the rotating brush 7 is narrowed, the suction force acting on the space portion S is increased, dust on the wall is reliably sucked, and the front cover 6 The air passages P, P formed between the sliding contact portions 9a, 9b are also narrowed, the suction force is increased, dust on the wall is reliably sucked, and further, between the front cover 6 and the sliding contact portions 9a, 9b. The air passages P and P formed in the air passages are also narrowed, the suction force acting on the air passages P and P is increased, and the dust at the wall is reliably sucked by the entire width of the floor brush 1.

  Further, the bent portions 6b and 6b are provided in the front cover 6 so that the end portions of the air passages P and P are substantially closed, the suction force acting on the air passages P and P is further increased, and the dust on the wall is increased. Is surely aspirated.

  Conventionally, since a damper is provided on the front surface or the entire circumference of the case body, a front cover cannot be provided so as to cover the front suction port, and dust such as near the wall cannot be efficiently cleaned over the entire width of the suction port body. On the other hand, the present floor brush not only damages walls, furniture, etc., but also can efficiently clean dust at the wall and the like over the entire width of the floor brush.

  According to the suction port body of the present embodiment and a vacuum cleaner equipped with the suction port body, the impact at the time of the collision between the wall, furniture, etc. and the side surface of the suction port body is reduced at the time of cleaning the wall or furniture. A suction port body that can clean the entire width of the suction port body without damaging walls, furniture, and the like, and a vacuum cleaner including the same are realized.

The conceptual diagram of the vacuum cleaner of one Embodiment of this invention. The perspective view of the suction inlet of one Embodiment of this invention. The longitudinal cross-sectional view of the suction inlet of one Embodiment of this invention. The bottom view of the suction inlet of one embodiment of the present invention. The perspective view which looked at the case body of the suction inlet of one Embodiment of this invention from the lower surface. The side view of the case body of the suction inlet of one Embodiment of this invention. The enlarged view of the sliding contact part of the other side provided in the suction inlet of one embodiment of this invention. The longitudinal cross-sectional view which shows the state which attached the shock absorbing material used for the suction inlet of one Embodiment of this invention to the damper. The conceptual diagram which removes and shows the case body of the suction inlet of one Embodiment of this invention. The perspective view which looked at the case body of the suction inlet of one Embodiment of this invention from the lower surface. The disassembled perspective view of the rotating brush of the suction inlet of one embodiment of this invention. The enlarged view of the sliding contact part of the one side provided in the suction inlet of one embodiment of this invention. The bottom view which removes and shows the cover body of the suction inlet body of one embodiment of this invention.

Explanation of symbols

1 Floor brush second case body 2a side 3 connecting pipe 4 lower casing 4a holes 5 upper case 6 front cover _6b 1, 6b ₁ notch 7 rotating brush 8A inlet 8a communicating groove 8B inlet 9a, 9b sliding contact portion 10a, 10b driving wheel 10b ₁ wheel main body 11a, 11b wheel housing portion 12a, 12b bumper member 12b ₁ attached part 12b ₂ wheel cover portions 13a, 13b cushioning member 14 wheels 15a, 15b cover member _15a 1, 15b ₁ screw 16 motor 17 the safety device 18 Wall portions 19a, 19b Shaft support portions 19a ₁ , 19b ₁ Outer end portions 20a, 20b Bearing disks 21a, 21b Bearing grooves 22a Pulley housing grooves 22b Coupling housing grooves 23 Rotating body assembly 24 Connecting shaft 25a Coupling 25b Coupling 25a ₁ Brush side coupling 25a ₂ Bearing side coupling 26 Driven pulley 2 6a Gear part 27 Driving pulley 28 Belt 31 Rotating brush assembly 32 Cleaning member 33 Groove parts 34a, 34b Non-woven cloth 35a, 35b Non-woven cloth 36a, 36b Short raising cloth 37a, 37b Long raising cloth 38a, 38b Rear long raising cloth 51 Electric cleaning Machine 52 Vacuum cleaner main body 53 Electric blower 54 Main body inlet 55 Hose body 5
56 Hand operating part 57 Grip part 58 Setting button 59 Extension pipe P Ventilation path R Communication path S Space part

Claims (2)

The case body,
A suction port formed in the case body and a front suction port communicating with the suction port;
A rotary cleaning body rotatably supported opposite to the suction port and the front suction port;
A pair of shaft support portions that support both sides of the rotary cleaning body;
A pair of sliding contact portions covering the pair of shaft support portions and provided at a lower portion of the case body and in contact with the surface to be cleaned;
A pair of drive wheels each provided on the outside of the shaft support;
A front cover that covers the front suction port and is rotatably attached to the front surface of the case body so that a ventilation path is formed between the space cleaning portion and the sliding contact portion with the rotary cleaning body. When,
A bumper provided on a side surface of the case body and disposed to face a side surface of the drive wheel;
A suction port body comprising a cushioning material provided on at least one of the drive wheel and the bumper. A vacuum cleaner body containing an electric blower,
A vacuum cleaner comprising: the suction port body according to claim 1, which is connected to the suction side of the electric blower with respect to the vacuum cleaner main body.

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