JP7587628B2 - Suction port body and vacuum cleaner - Google Patents

Description

An embodiment of the present invention relates to a suction inlet body having a rotating cleaning body that is driven to rotate by the power of a drive source, and an electric vacuum cleaner equipped with the same.

Among the suction mouth bodies used in vacuum cleaners, there are known ones that are equipped with a rotating cleaning body that is rotated and driven by the power of a driving source such as a motor to clean the surface to be cleaned. Conventionally, the end of the rotating cleaning body is rotatably supported on a fixed part formed on the case, and also serves as a power transmission part to which power from the driving source is transmitted. Since cleaning members cannot be placed on these fixed parts or power transmission parts, there are parts of the end of the rotating cleaning body that cannot pick up dust.

JP 2008-220519 A

The problem that this invention aims to solve is to provide a suction mouth body that allows a cleaning member to be positioned up to the end of the rotating cleaning body, and a vacuum cleaner equipped with the same.

The suction port body of the embodiment includes a case, a drive source, a rotary cleaning body that is rotationally driven by the power of the drive source, and a support part. The rotary cleaning body includes a shaft body, a bearing at least a part of which is built into the shaft body, and a cleaning member that is arranged on the outer side of the shaft body up to a position corresponding to the end of the shaft body or the bearing. The support part rotatably supports the rotary cleaning body on the side wall of the case via the bearing . The support part includes a shaft that can slide on the inner peripheral part of the bearing in the axial direction, and includes a shaft body side receiving part that is located inside the shaft body at the end of the shaft body and rotatably supported by the bearing, a case side receiving part that is located on the side wall of the case, a biasing means that biases the shaft body side receiving part in a direction protruding from the end of the shaft body, and a connecting part that connects the shaft body side receiving part and the case side receiving part. The connecting portion comprises a convex portion formed on the shaft of the shaft side receiving portion and a hole portion formed through the case side receiving portion, and the convex portion of the shaft side receiving portion biased by the biasing means is fitted into the hole portion of the case side receiving portion to connect the shaft side receiving portion and the convex portion is pushed out of the hole portion against the bias of the biasing means to release the connection between the shaft side receiving portion and the case side receiving portion .

2 is a perspective view showing a portion of the suction mouth body of the first embodiment. FIG. FIG. 4 is a perspective view showing a state in which the support portion of the suction port body is removed from the bearing. 4A is a perspective view showing an end portion of a rotary cleaning body of the suction port body from the outside, and FIG. 4B is a perspective view showing the end portion of the rotary cleaning body from the inside. FIG. 11 is an oblique view showing the state in which the second case portion has been removed from the first case portion of the suction port body. FIG. FIG. 4 is an oblique view showing the inside of a first case portion of the suction port body. 4 is a perspective view showing a second case portion of the case of the same suction port body from above. FIG. FIG. 4 is a perspective view showing the second case portion from below. 13 is a perspective view showing the state in which the rotating cleaning body has been removed from the second case portion, as viewed from below. FIG. FIG. 2 is a perspective view showing the suction port body from above. FIG. FIG. 2 is a perspective view showing an electric vacuum cleaner equipped with the same suction mouth body. 13 is an oblique view showing, from below, a state in which the rotating cleaning body has been removed from the second case portion of the suction port body of the second embodiment. FIG. FIG. 11 is a perspective view showing a portion of the suction mouth body of the third embodiment. FIG. 4 is a perspective view showing a state in which the support portion of the suction port body is removed from the bearing. An oblique view showing a part of the inside of the suction mouth body of the fourth embodiment. A cross-sectional view showing a part of the inside of the suction port body of the fifth embodiment.

First Embodiment
Hereinafter, the first embodiment will be described with reference to the drawings.

In Figures 10 and 11, 1 indicates the suction port body. The suction port body 1 is also called a suction tool, a cleaning head, or a floor brush. In the following, the front-rear, left-right, and up-down directions are defined based on the state in which the suction port body 1 is placed on a horizontal part to be cleaned. In the figures, the direction of the arrow FR is the forward direction, the direction of the arrow RR is the rearward direction, the direction of the arrow L is the leftward direction, the direction of the arrow R is the rightward direction, the direction of the arrow U is the upward direction, and the direction of the arrow D is the downward direction.

The suction port body 1 comprises a case 10, which is a housing forming an outer shell, and a connection pipe 11 connected to the case 10. The case 10 is formed from synthetic resin or the like. The case 10 has a horizontally elongated shape in which the left-right dimension or width dimension is greater than the front-rear dimension and the up-down dimension. A plurality of chambers are formed inside the case 10. For example, as shown in FIG. 4, the case 10 has at least a suction chamber 100, which is a chamber, and a suction air passage 101, which is a chamber that carries dust from the suction chamber 100 to the connection pipe 11.

The suction chamber 100 has a suction port 1000 for sucking in dust formed in the lower part facing the part to be cleaned such as a floor surface, i.e., the underside part 102 of the case 10. The suction chamber 100 is formed longitudinally in the left-right direction. The suction chamber 100 and the suction port 1000 are connected across almost the entire width of the case 10. The suction chamber 100 is located in the front part of the case 10. In this embodiment, the suction chamber 100 is located in the frontmost part of the case 10. In the illustrated example, the suction chamber 100 is covered at the front, both sides and top, but a part of the front part may be open.

The intake air passage 101 is connected to the rear of the intake chamber 100. The intake air passage 101 extends in the front-rear direction, with the front end, which is the upstream end of the intake air, fluidly communicating with the intake chamber 100, and the rear end, which is the downstream end of the intake air, fluidly communicating with the connection pipe 11. In this embodiment, the intake air passage 101 has a smaller left-right dimension or width dimension than the intake chamber 100, and communicates with the center of the intake chamber 100 in the left-right direction. The connection pipe 11, which communicates with the intake air passage 101, has its front end connected to the rear of the case 10 and its rear end connected to the connected portion. In this embodiment, the front end of the connection pipe 11 is connected to the case 10 so as to be rotatable.

In this embodiment, the suction chamber 100 is a rotary cleaning body chamber in which the rotary cleaning body 12 is rotatably arranged. However, this is not limited to this, and a rotary cleaning body chamber in which the rotary cleaning body 12 is rotatably arranged may be formed in the case 10 separately from the suction chamber 100.

The rotating cleaning body 12 is also called a rotating brush, etc., and is configured to scrape dust from the part to be cleaned by rotation. The rotating cleaning body 12 has a shaft body 120. The shaft body 120 is also called a brush base, etc. The shaft body 120 is formed in a longitudinal shape from metal, synthetic resin, etc.

1 and 2, the shaft body 120 has a hole 1200 along the central axis. The hole 1200 is located at least at the end of the shaft body 120. In this embodiment, the hole 1200 is formed penetrating between both ends of the shaft body 120, and the shaft body 120 is cylindrical. A bearing 121 for rotatably supporting the rotating cleaning body 12 is arranged in the hole 1200. The bearing 121 is formed in a cylindrical shape. The bearing 121 is pressed into the hole 1200, and the outer periphery is held by the inner periphery of the hole 1200. In this embodiment, the bearing 121 is located at the end of the shaft body 120. In the illustrated example, the bearing 121 is located such that one end side protrudes from the end of the shaft body 120 in the axial direction of the shaft body 120. As the bearing 121, for example, a sliding bearing such as a metal bearing or a rolling bearing such as a ball bearing is preferably used.

In addition, a cleaning member 122 is disposed on the outer side of the shaft body 120. The cleaning member 122 is a member that comes into contact with the part to be cleaned and scrapes or wipes off dust from the part to be cleaned as the rotating cleaning body 12 rotates. The cleaning member 122 is disposed up to a position corresponding to the end of the shaft body 120 or the bearing 121. Here, the position corresponding to the end of the shaft body 120 refers to a range including at least the outer part of the end of the shaft body 120 in the axial direction of the shaft body 120 or the rotating cleaning body 12. In addition, the position corresponding to the bearing 121 refers to a range including the outer part of the shaft body 120 that intersects with a virtual plane including the outer end 1210, which is one end of the bearing 121 facing the end of the shaft body 120, in the axial direction of the shaft body 120 or the rotating cleaning body 12. In this embodiment, the cleaning members 122 are arranged in a continuous manner between both ends of the shaft body 120, and form a wall shape that rises radially from the outer side of the shaft body 120. However, the cleaning members 122 may be arranged, for example, intermittently between both ends of the shaft body 120.

In the illustrated example, the cleaning member 122 is attached to a mounting groove 1201 formed on the outer side of the shaft 120. The cleaning member 122 integrally has a base 1220 that is engaged and locked in the mounting groove 1201, and a cleaning member main body 1221 that protrudes from the base 1220. The base 1220 is formed, for example, from a soft or flexible material. The cleaning member main body 1221 is, for example, a brush bristles, and each base end is integrally held in the base 1210. The cleaning member main body 1221 may be bundled together in groups of multiple bristles, or may be scattered throughout the entire body.

Multiple cleaning members 122 are arranged on the outer side of the shaft body 120. In this embodiment, the cleaning members 122 are evenly or approximately evenly spaced in the circumferential direction of the shaft body 120 or in the rotational direction of the rotating cleaning body 12.

In this embodiment, the cleaning members 122 are arranged in a spiral shape from one end to the other end of the shaft body 120. For example, the cleaning members 122 are arranged in a spiral shape from one end to the other end of the shaft body 120, twisted 180° in the circumferential direction of the shaft body 120 or in the rotational direction of the rotating cleaning body 12.

The cleaning member 122 is prevented from coming off the shaft body 120 in the axial direction by a stopper 123. The stopper 123 is attached to the end of the shaft body 120. The stopper 123 is formed in a disk shape and has a flange shape arranged in a direction intersecting or perpendicular to the axial direction of the shaft body 120. The stopper 123 has a larger diameter than the shaft body 120 and extends radially outward beyond the outer part of the shaft body 120. The stopper 123 has a rising part 1230 rising from the outer edge part toward the shaft body 120 side. In addition, the stopper 123 has a stopper opening 1231 formed in the center, which exposes at least the inner periphery of the bearing 121. In this embodiment, the stopper 123 is formed of, for example, a thin sheet metal material.

The rotating cleaning body 12 is rotatably supported on the case 10 by the support portion 13. The support portion 13 rotatably supports the rotating cleaning body 12 on the side wall 103 of the case 10 via a bearing 121. The side wall 103 is planar and extends in the front-rear and up-down directions. As shown in Figures 3(a) and 3(b), the side wall 103 has a fixing portion 1030 that constitutes the side of the suction chamber 100. In this embodiment, the fixing portion 1030 is formed in the shape of a single plate and is thin in the left-right direction.

The support part 13 may be integral with the side wall 103 or the fixed part 1030 of the case 10 or may be separate. In this embodiment, the support part 13 is separate from the case 10, has a shaft 130 and a connecting part 131, and is inserted into the suction chamber 100 from the outside or side of the case 10 through an opening 1031 formed in the fixed part 1030 of the side wall 103. Note that, although only the support part 13 on one end side of the rotating cleaning body 12 is shown in Figs. 1 to 3, the support part 13 on the other end side of the rotating cleaning body 12 is basically symmetrical or approximately symmetrical with the one end side in the axial direction of the rotating cleaning body 12 or the shaft body 120, and therefore illustration and description are omitted.

As shown in FIG. 1 and FIG. 2, the shaft 130 is formed in a columnar or cylindrical shape and is inserted into the inner circumference of the bearing 121. For example, if the bearing 121 is a sliding bearing, the shaft 130 is slidably connected to the inner circumference of the bearing 121, and if the bearing 121 is a rolling bearing, the shaft 130 is fixedly connected to the inner circumference of the bearing 121. The shaft 130 is positioned with one end protruding from the outer end 1210 of the bearing 121.

The connecting portion 131 is for fixing the shaft 130 to the fixing portion 1030 of the side wall 103. The connecting portion 131 is integrally formed at one end of the shaft 130. As shown in FIG. 3(a) and FIG. 3(b), the connecting portion 131 has a blocking portion 1310 that fits into the opening 1031 and covers the opening 1031. In this embodiment, the blocking portion 1310 is formed in a plate shape, and is exposed and positioned on the side of the case 10 so as to be flush or approximately flush with the side wall 103 when fitted into the opening 1031, and forms a part of the outer shell of the suction port body 1 (shown in FIG. 10) together with the side wall 103 of the case 10. For example, the blocking portion 1310 has a thickness equal to or approximately equal to that of the side wall 103. In the illustrated example, since the opening 1031 is formed in a circular shape, the blocking portion 1310 is also disk-shaped according to the shape of the opening 1031. The occlusion portion 1310 and the shaft 130 are positioned coaxially or approximately coaxially.

As shown in Figs. 1 and 2, the connecting portion 131 has an insertion portion 1311 that is inserted into the stopper opening 1231. The insertion portion 1311 protrudes in the thickness direction of the blocking portion 1310 from the rear side of the blocking portion 1310, i.e., the surface on the suction chamber 100 side, and is connected to the base end of the shaft 130.

Furthermore, a washer 132, which is a friction suppression body for suppressing friction with the rotating cleaning body 12 or the stopper 123, is attached to the connecting part 131. The washer 132 is formed in an annular shape, and the shaft 130 and the insertion part 1311 are inserted into the washer 132, which is overlapped on the back side of the blocking part 1310. The blocking part 1310 of the connecting part 131 and the stopper 123 of the rotating cleaning body 12 face each other in the left-right direction via the washer 132.

The connecting portion 131 and the shaft 130 may be integrally formed from the same material, or may be formed from different materials and combined together. When they are formed from the same material, for example, a hard synthetic resin is used. When they are formed from different materials, for example, a metal is used for the shaft 130 and a synthetic resin is used for the connecting portion 131.

As shown in Figures 3(a) and 3(b), the support portion 13 is attached to the fixing portion 1030 of the side wall 103 by an attachment portion 133. In this embodiment, the attachment portion 133 is a locking portion, and detachably attaches the support portion 13 to the side wall 103. The attachment portion 133 is a claw portion that protrudes outward from the outer edge on the back side of the blocking portion 1310 of the connecting portion 131. Preferably, multiple attachment portions 133 are set. In the illustrated example, a pair of attachment portions 133 are set on opposite sides of each other with respect to the center of the blocking portion 1310. A notch 1032 into which the mounting portion 133 can be inserted is formed on the edge of the opening 1031, and the support portion 13 inserted into the opening 1031 is rotated in the circumferential direction (shown by the two-dot chain line in FIG. 3B) with the mounting portion 133 aligned with the notch 1032, causing the mounting portion 133 to shift position with the notch 1032, thereby preventing the support portion 13 from coming off and being held against the fixed portion 1030 of the side wall 103. For this reason, in this embodiment, a rotation assist portion 13100 is formed in the blocking portion 1310 to facilitate the support portion 13 being rotated in the circumferential direction. In this embodiment, the rotation assist portion 13100 is a knob that protrudes from the blocking portion 1310, but is not limited thereto, and may be, for example, a groove into which a rotation jig such as a coin or a flathead screwdriver is fitted.

The rotating cleaning body 12 is driven to rotate by the power of the driving source 14 shown in FIG. 6. The driving source 14 may be an actuator that converts electric power into driving force, or an air turbine that uses suction force to draw air into an air duct and rotate, i.e., converts wind force into driving force. In this embodiment, the driving source 14 is, for example, a motor. The driving source 14 is arranged in a driving source chamber 104, which is a chamber formed in the case 10, and is stored inside the case 10. The driving source chamber 104 is arranged, for example, on one side of the suction air duct 101. In this embodiment, the operation of the driving source 14 is controlled by the control unit 15. The control unit 15 is arranged, for example, behind the driving source 14 in the driving source chamber 104. Basically, the control unit 15 controls the driving of the driving source 14 to switch the rotation of the rotating cleaning body 12 (shown in FIG. 5) on and off, but may also control the rotation speed of the rotating cleaning body 12 (shown in FIG. 5). The control unit 15 switches whether or not the drive source 14 is driven, depending on, for example, whether the suction mouth body 1 (shown in FIG. 4) or the case 10 is approaching or separating from the part to be cleaned. The approach and separation of the suction mouth body 1 (shown in FIG. 4) or the case 10 from the part to be cleaned is detected, for example, by a ground detection means 16 shown in FIG. 11. The ground detection means 16 is also called a safety device, and is disposed on the underside 102 of the case 10. In the example shown in the figure, the ground detection means 16 is configured with a running wheel 160 that is grounded to the part to be cleaned.

In this embodiment, the driving source 14 shown in FIG. 6 rotates the rotating cleaning body 12 (shown in FIG. 5) via the rotating body 17. When the driving source 14 rotates the rotating body 17, the rotating cleaning body 12 rotates in response to the rotating body 17. In other words, the rotating body 17 is a first rotating body or a driving rotating body that is directly rotated by the power of the driving source 14, and the rotating cleaning body 12 (shown in FIG. 5) is a second rotating body or a driven rotating body that is indirectly rotated by the power of the driving source 14.

The rotating body 17 shown in Figures 4 to 6 has a shaft portion 170. The shaft portion 170 is formed in an elongated shape. The length of the shaft portion 170 is shorter than the length of the shaft body 120 of the rotating cleaning body 12. The shaft portion 170 is arranged so that the axial direction is parallel or approximately parallel to the shaft body 120 of the rotating cleaning body 12.

The shaft portion 170 is rotatably supported by the case 10. In this embodiment, one end of the shaft portion 170 is supported by the driving source 14 via the reduction gear device 140, and the other end is rotatably supported by the case 10 via the bearing 171. The bearing 171 is disposed in the bearing chamber 105, which is a chamber located on the opposite side of the driving source chamber 104 with respect to the rotating body 17. In the illustrated example, the shaft portion 170 or the rotating body 17 and the driving source 14 are disposed coaxially or approximately coaxially. For example, a planetary gear mechanism is preferably used as the reduction gear device 140.

A transmission member 172 is disposed on the outer side of the shaft portion 170. The transmission member 172 is a member that transmits the rotation of the rotating body 17 to the rotating cleaning body 12. The transmission member 172 rises radially from the outer side of the shaft portion 170. Preferably, the transmission member 172 is in the form of a wall that is arranged in a continuous manner between both ends of the shaft portion 170. Not limited to this, the transmission member 172 may be arranged partially or intermittently between both ends of the shaft portion 170, for example. In addition, the transmission member 172 does not have to be in the form of a wall, and may be, for example, in the form of a protrusion. Preferably, the transmission member 172 is a blade member. In the illustrated example, a plurality of transmission members 172 are disposed on the outer side of the shaft portion 170. In this embodiment, the transmission members 172 are arranged evenly or approximately evenly in the circumferential direction of the shaft portion 170 or the rotational direction of the rotating body 17. In addition, in this embodiment, the transmission member 172 is arranged in a spiral shape from one end to the other end of the shaft portion 170.

The rotating body 17 is located rearward relative to the rotating cleaning body 12 inside the case 10. At least a portion of the rotating body 17, and in this embodiment, the entire rotating body 17, is located within the front-rear projection of the rotating cleaning body 12 in the left-right direction, and the transmission member 172 meshes with a transmission receiving member 124 arranged on the rotating cleaning body 12, thereby transmitting the rotation of the rotating body 17 to the rotating cleaning body 12. In other words, the rotating body 17 and the rotating cleaning body 12 are arranged so that the rotation range of the rotating body 17 and the rotation range of the rotating cleaning body 12 partially overlap in the front-rear direction.

Here, in this embodiment, the transmission receiving member 124 is arranged in a continuous manner across both ends of the shaft body 120, and forms a wall shape that rises radially from the outer side of the shaft body 120. However, the transmission receiving member 124 may be arranged intermittently between both ends of the shaft body 120, for example.

As shown in FIG. 1, the transmission receiving member 124, like the cleaning member 122, is attached to a mounting groove 1201 formed on the outer side of the shaft body 120, and like the cleaning member 122, is prevented from coming off the shaft body 120 in the axial direction by a stopper 123.

The transmission receiving members 124 are arranged in multiple numbers on the outer side of the shaft body 120. In this embodiment, the transmission receiving members 124 are evenly or approximately evenly arranged between the cleaning members 122 in the circumferential direction of the shaft body 120 or the rotational direction of the rotating cleaning body 12. In other words, the transmission receiving member 124 is located between the cleaning members 122, 122. In the illustrated example, the transmission receiving members 124 and the cleaning members 122 are arranged alternately in the circumferential direction of the shaft body 120 or the rotational direction of the rotating cleaning body 12. Not limited to this, the transmission receiving members 124 may be arranged in multiple numbers between the cleaning members 122, 122, or multiple cleaning members 122 and one or multiple transmission receiving members 124 may be arranged alternately in the circumferential direction of the shaft body 120 or the rotational direction of the rotating cleaning body 12.

In this embodiment, the transmission receiving member 124 is arranged to be twisted in a spiral shape in the same direction as the cleaning member 122 from one end to the other end of the shaft body 120. For example, the transmission receiving member 124 is arranged to be twisted 180° in the circumferential direction of the shaft body 120 or the rotational direction of the rotating cleaning body 12 from one end to the other end of the shaft body 120. As shown in Figures 5 and 6, the twist direction of the transmission receiving member 124 and the twist direction of the transmission member 172 are opposite to each other.

The transmission receiving member 124 may or may not contact the part to be cleaned. In other words, the transmission receiving member 124 may be a cleaning member that scrapes or wipes off dust from the part to be cleaned as the rotating cleaning body 12 rotates, or may be a member that does not perform cleaning. For example, in this embodiment, as shown in FIG. 1, the transmission receiving member 124 is set to protrude in the radial direction from the outer side of the shaft body 120 more than the cleaning member 122, and is capable of contacting the part to be cleaned. Preferably, the transmission receiving member 124 is formed of a material that is harder than the cleaning member 122. The transmission receiving member 124 may be a brush bristles like the cleaning member 122, or a blade like the transmission member 124 of the rotating body 17 shown in FIG. 5 and FIG. 6.

In addition, the transmission member 172 of the rotating body 17 may or may not contact the part to be cleaned. The transmission member 172 may be a cleaning member that scrapes out or wipes off dust from the part to be cleaned as the rotating body 17 rotates, or may be a member that does not perform cleaning. As an example, in this embodiment, the transmission member 172 is formed of a harder material than the cleaning member 122 of the rotating cleaning body 12. Therefore, it is preferable that the user does not directly touch the rotating body 17 while the rotating body 17 is rotating. As shown in FIG. 4, the rotating body 17 is located above the rotating cleaning body 12 and is separated from the part to be cleaned via a partition wall 106 formed in the case 10. The partition wall 106 is formed to extend in the left-right direction over the entire length of the rotating body 17. The partition wall 106 is located above the intake air duct 101. The partition wall 106 forms the lower part of the rotor chamber 107 that houses the rotor 17, and constitutes a wall between the rotor chamber 107 and the intake air passage 101. The partition wall 106 has, for example, an arcuate surface along the rotor 17. In this embodiment, the partition wall 106 is curved upward toward the rear. The partition wall 106 is configured to make it difficult for the user to directly touch the rotor 17 from the intake port 1000 or below.

The positions of the rotor 17 and the rotary cleaning body 12 are set so that the transmission member 172 of the rotor 17 overlaps the transmission receiving member 124 of the rotary cleaning body 12 in the front-rear and up-down directions. As shown in Figures 5 and 6, the rotor chamber 107 is located between the drive source chamber 104 and the bearing chamber 105 in the left-right direction. Also, as shown in Figure 4, the rotor chamber 107 is adjacent to the rear of the suction chamber 100.

In this embodiment, the case 10 that divides each chamber consists of a first case portion 108 and a second case portion 109, as shown in Figures 4 to 6.

The first case portion 108 mainly constitutes the lower portion, rear portion, rear side of the upper portion, and rear sides of both sides of the case 10. The connecting pipe 11 is connected to the rear portion of the first case portion 108. In this embodiment, the first case portion 108 is divided into multiple case portions. In the illustrated example, the first case portion 108 has a lower case portion 1080 that constitutes the lower portion, and an upper case portion 1081 that constitutes the upper portion.

The lower case part 1080 is open at the top. The front part 10800 of the lower case part 1080 is a wall extending in the left-right direction, and constitutes the rear part of the suction chamber 100 or the rear edge part of the suction port 1000. Similarly, the rear part 10801 of the lower case part 1080 is a wall extending in the left-right direction on both sides of the connection pipe 11, and constitutes the lower side of the rear part of the case 10. In addition, both sides 10802 of the lower case part 1080 are wall-like extending in the front-rear direction, and constitute the lower side of the side part of the case 10 or the rear part of the side wall 103. In addition, the lower part of the lower case part 1080 is the lower surface part 102 of the case 10, and is a surface extending in the front-rear and left-right directions.

Furthermore, a partition 10803 is formed near one side 10802 at the top of the lower case 1080, and the front 10800, rear 10801, one side 10802, partition 10803, and underside 102 form the lower front, lower rear, and lower and lower sides of the drive source chamber 104. A notch is formed in the partition 10803 into which the lower part of one end side of the shaft 170 of the rotating body 17 or the lower part of the drive source 14 is sandwiched. In addition, a partition 10804 is formed near the other side 10802 in the upper part of the lower case 1080, and the front part 10800, the rear part 10801, the other side 10802, the partition 10804, and the lower surface part 102 form the lower front, lower rear, lower both sides, and lower part of the bearing chamber 105. A cutout part is formed in the partition 10804 to support the lower part of the other end side of the shaft part 170 of the rotating body 17 or the lower part of the bearing 171. Furthermore, a partition wall 106 is formed between the partition walls 10803 and 10804, and an intake air passage 101 is formed between the partition wall 106 and the lower surface part 102. That is, the lower parts of the drive source chamber 104, the bearing chamber 105, and the rotating body chamber 107 are formed in the upper part of the lower case 1080.

As shown in FIG. 11, the lower case part 1080 is provided with running wheels 10805 that assist the suction port body 1 or the case 10 in traveling on the part to be cleaned. The running wheels 10805 are exposed downward from the lower surface part 102. In this embodiment, the running wheels 10805 are provided on both left and right sides of the front part 10800 of the lower case part 10800 and in the left and right center part of the rear part 10801 of the lower case part 1080. The front running wheels 10805 are located on both left and right edges of the rear part of the suction port 1000. The rear running wheels 10805 are located below the connecting pipe 11. In this embodiment, the running wheels 10805 are driven wheels.

The upper rear portion of the lower case portion 1080 is covered by the upper case portion 1081 shown in FIG. 5. The upper case portion 1081 is open at the bottom. The rear portion 10810 of the upper case portion 1081 is wall-shaped with both sides of the connection tube 11 extending in the left-right direction, and is connected to the upper portion of the rear portion 10801 of the lower case portion 1080 to form the upper side of the rear portion of the case 10. Both sides 10811 of the upper case portion 1081 are wall-shaped extending in the front-rear direction, and are connected to the upper portions of both sides 10802 of the lower case portion 1080 to form the upper side of the rear portion of the side portion or side wall 103 of the case 10. At the front portion of the upper case portion 1081, a wall portion 10812 is formed that extends in the left-right direction and follows the rear portions of the rotating body chamber 107 and the bearing chamber 105. A partition 10813 is formed connected to the wall 10812 and connected to an upper portion of the partition 10803 of the lower case 1080. The partition 10813 extends forward from one side of the wall 10812. A notch is formed in the partition 10813, into which an upper portion of one end side of the shaft 170 of the rotating body 17 or an upper portion of the driving source 14 is sandwiched between the notch of the partition 10803. Furthermore, the upper portion of the upper case 1081 is closed, and in particular, a portion extending from the upper portion between the partition 10813 and one side 10811 to the front portion serves as a cover 10814 that covers an upper portion of the driving source chamber 104. The rear part 10810, one side part 10811, partition part 10813, and cover part 10814 of the upper case part 1081 form the upper side of the rear part, the upper sides of both sides, and the front and upper part of the drive source chamber 104. In the illustrated example, the cover part 10814 is curved downward toward the front.

The second case part 109 shown in FIG. 4 mainly constitutes the upper front side, front part, and front sides of both sides of the case 10. The second case part 109 is a cover body that is placed over the upper front part of the first case part 108. Preferably, the second case part 109 is detachable from the first case part 108. In this embodiment, the second case part 109 is integrally formed from a single thin plate.

As shown in Figures 5, 7 to 9, the second case portion 109 has side portions 1090 that form both sides, and a cover body portion 1091 that covers the portion extending from the upper portion between the side portions 1090, 1090 to the front portion, which are integral with the second case portion 109.

When the second case part 109 is attached to the first case part 108, the side part 1090 is placed on the side part of the first case part 108, i.e., the side part 10802 of the lower case part 1080 and the side part 10811 of the upper case part 1081, and constitutes the side part of the case 10 or the front part of the side wall 103. The side part 1090 is formed in a thin flat plate shape. The side part 1090 forms at least the side part of the suction chamber 100. A fixing part 1030 and an opening part 1031 are formed in the side part 1090.

The cover body 1091 of the second case 109 extends in the left-right direction between the side sections 1090, 1090. The cover body 1091 is integral with a first cover 10910 that covers the upper to front parts of the rotor 17 and constitutes the upper and front parts of the rotor chamber 107, and a second cover 10911 that covers the upper to front parts of the rotating cleaning body 12 and constitutes the upper and front parts of the suction chamber 100.

The first cover part 10910 constitutes the rear part of the cover main body part 1091. The first cover part 10910 is curved downward toward the front. The second cover part 10911 is connected to the front end part of the first cover part 10910 in a stepped manner. In addition, a partition part 10912 is formed at the lower part of the first cover part 10910 for vertically clamping the shaft part 170 of the rotating body 17 between the partition part 10814 of the first case part 108. The partition part 10912 is located away from the side part 1090 and is formed in a wall shape extending in the front-rear direction. A cutout part is formed in the partition part 10912 to support the upper part of the other end side of the shaft part 170 of the rotating body 17 or the upper part of the bearing 171. The first cover part 10910 of the second case part 109, one side part 1090, and the partition part 10912 form the upper part and both sides of the bearing chamber 105.

The second cover part 10911 constitutes the front part of the cover main body part 1091. The second cover part 10911 is curved downward toward the front. The front part and side parts 1090, 1090 of the second cover part 10911 partition the front part and both sides of the suction chamber 100, and the part surrounded by the front part, side parts 1090, 1090 of the second cover part 10911, and the front part of the first case part 108 or the front part 10800 of the lower case part 1080 forms the suction port 1000. In other words, the suction port 1000 is formed between the second case part 109 and the first case part 108 in the front-to-rear direction. Therefore, the left-right dimension or width dimension of the suction port 1000 is smaller than the left-right dimension or width dimension of the case 10 or the second case part 109 by the plate thickness of both side parts 1090 or both side walls 103 of the second case part 109, and the suction port 1000 is located substantially across almost the entire width of the case 10. Moreover, the suction port 1000 is structured so that no structures are located across the entire left-right direction.

The second case part 109 has a rotating cleaning body 12 supported by a support part 13 at a fixing part 1030 of a side part 1090, and is detachable from the first case part 108 together with the rotating cleaning body 12 (as shown in FIG. 8).

5, when the second case part 109 is removed from the first case part 108, the rotating body 17 is exposed at the top of the first case part 108. As described above, if the transmission member 172 of the rotating body 17 is formed of a harder material than the cleaning member 122 of the rotating cleaning body 12, it is preferable that the user not directly touch the rotating body 17 when the rotating body 17 is rotating with the second case part 109 removed from the first case part 108. In this embodiment, the shaft 170 or the bearing 171 of the rotating body 17 is sandwiched between the partition 10912 of the second case part 109 and the partition 10804 of the first case part 108, so that the end of the rotating body 17 is released when the second case part 109 is removed from the first case part 108, and the rotating body 17 does not rotate basically. However, in order to more reliably reduce the rotation speed of the rotating body 17 or stop the rotation, for example, in this embodiment, a rotation speed control means is provided for reducing the rotation speed of the rotating body 17 or stopping the rotating body 17 when the second case part 109 is removed from the first case part 108. In the illustrated example, a detection means 18 such as a switch or a sensor that detects the removal of the second case part 109 from the first case part 108 is disposed, and the control part 15 controls the drive source 14 to reduce or stop the drive upon detection of the detection means 18. The detection means 18 is disposed in the first case part 108 or the second case part 109. In the illustrated example, the detection means 18 is disposed in the first case portion 108. For example, the detection means 18 is located above the drive source chamber 104. The detection means 18 is electrically connected to the control unit 15 (shown in FIG. 6).

The rotation speed control means is not limited to this, and may be configured, for example, as a biasing means for biasing the rotor 17 upward toward the second case part 109, so that when the second case part 109 is detached from the first case part 108, the rotor 17 is detached from the first case part 108, thereby forcibly stopping the drive of the rotor 17 by the drive source 14, or, in the case where the drive source 14 is an air turbine or the like, as an air passage opening means, the drive source 14 is automatically stopped by opening the air passage for driving the air turbine when the second case part 109 is detached from the first case part 108.

The suction mouth body 1 is used in a vacuum cleaner 2 shown in FIG. 12. FIG. 12 shows a stick-type vacuum cleaner that is operated by gripping the main body 20 as an example of the vacuum cleaner 2. In the vacuum cleaner 2 of this embodiment, a dust collection section 21 that separates and accumulates dust is disposed in the main body 20. In FIG. 12, a dust collection device is shown as an example of the dust collection section 21, but this is not limiting, and a dust collection section such as a paper bag may also be used.

The main body 20 is also provided with a suction source 22, such as an electric blower, which generates suction force by negative pressure. The suction side of the suction source 22 is connected to the dust collection section 21. The main body 20 is also provided with a main body suction port 200 which is connected to the dust collection section 21. The suction force of the suction source 21 acts on the main body suction port 200 via the dust collection section 21. A straight pipe section 23, such as an extension pipe, which is an air passage body, or a connecting pipe 11 of the suction port body 1 is connected to the main body suction port 200.

Furthermore, the main body 20 is formed with a main body exhaust port 201 for exhausting the air sucked in by the suction source 22 from the main body 20. The main body 20 is also formed with a grip 202 for the user to grip and operate the cleaning. The grip 202 is provided with a setting means 24 such as a switch for setting the operation of the suction source 22 and the rotating cleaning body 12 (shown in FIG. 4, etc.) of the suction port body 1. Furthermore, the main body 20 is provided with a power supply unit 25 that serves as a driving source for the suction source 22, etc., and a main body control unit 26 that controls the operation of the suction source 22 according to the setting by the setting means 24. The power supply unit 25 is preferably a battery such as a secondary battery to make the vacuum cleaner 2 cordless, but a cord reel device that draws power from a commercial power source may also be used. The main body control unit 26 is electrically connected to the control unit 15 (shown in FIG. 6) of the suction port body 1 when the suction port body 1 is connected to the main body suction port 200 of the main body 20 directly or indirectly via the straight pipe section 23, and is capable of sending and receiving signals to and from the control unit 15 (shown in FIG. 6).

In addition to the above, the vacuum cleaner 2 may be a floor-running type, a canister type, an upright type, a handheld type, etc.

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

The suction mouth body 1 is connected to one end of the shaft portion 170 of the rotor 17 via a reduction gear 140. As shown in FIG. 6, the rotor 17 and the drive source 14 are assembled together with the control unit 15 to the lower case portion 1080 of the first case portion 108, and the drive source 14 is sandwiched vertically between the lower case portion 1080 and the upper case portion 1081 shown in FIG. 5.

2, the rotating cleaning body 12 is formed by pressing a bearing 121 into a hole 1200 at the end of a preformed shaft 120, attaching a cleaning member 122 and a transmission receiving member 124 to the mounting groove 1201, and fitting a stopper 123 to the end of the shaft 120 to hold the cleaning member 122 and the transmission receiving member 124 against the shaft 120. As shown in FIG. 8, the rotating cleaning body 12 is disposed between the side portions 1090, 1090 of the second case portion 109, i.e., between the fixing portions 1030, 1030, and the support portion 13 is inserted from the side of the second case portion 109 into the opening 1031 where the stopper 123 and the bearing 121 at the end of the rotating cleaning body 12 face. At this time, as shown in, for example, FIG. 3(a) and FIG. 3(b), the support part 13 aligns the attachment part 133 with the notch part 1032 while pushing the shaft 130 into the inner circumference of the bearing 121. Then, when the support part 13 is rotated in the circumferential direction with the attachment part 133 positioned on the rear side of the fixed part 1030, the position of the attachment part 133 shifts in the circumferential direction relative to the notch part 1032, and the support part 13 is connected to the rotating cleaning body 12 via the bearing 121 and fixed to the fixed part 1030 of the side wall 103 of the case 10.

After that, as shown in Figures 4 and 5, the second case part 109, which integrally supports the rotating cleaning body 12, is attached integrally to the upper front side of the first case part 108, whereby the suction mouth body 1 is assembled in which the rotating body 17 and the rotating cleaning body 12 are rotatably supported inside, with the transmission member 172 of the rotating body 17 and the transmission receiving member 124 of the rotating cleaning body 12 meshing with each other.

When the suction port body 1 assembled in this manner is connected to the main body suction port 200 of the main body part 20 by the connecting pipe 11 via the straight pipe section 23 or directly, as shown in Figure 12, an air passage is formed that connects the suction port 1000 of the suction port body 1 shown in Figure 4 to the suction chamber 100, the suction air passage 101, the connecting pipe 11, the main body suction port 200 shown in Figure 12, and the dust collection section 21 to the suction source 22.

When a user holding the grip 202 operates the setting means 24 to set the operation of the suction source 22, the main body control unit 26 controls the suction source 22 according to the setting, generating negative pressure. The user places the suction mouth body 1 on the surface to be cleaned, such as a floor, and uses the grip 202 to move the entire vacuum cleaner 2 back and forth, using the negative pressure to suck dust together with air from the suction mouth 1000 of the suction mouth body 1 shown in Figure 4.

The sucked-in dust-laden air is sucked through the suction port 1000 into the suction chamber 100, the suction air duct 101, the connecting pipe 11, the main body suction port 200 shown in FIG. 12, and the dust collection section 21, where the dust is separated and accumulated. The clean air from which the dust has been separated and accumulated is sucked into the suction source 22 to cool the suction source 22, and is then discharged from the main body 20 through the main body exhaust port 201.

In addition, the control unit 15 (shown in FIG. 6) of the suction port body 1 drives the driving source 14 shown in FIG. 6 in response to the start of the suction source 22 by the main body control unit 26. When the driving force of the driving source 14 is transmitted to the rotating body 17 via the reduction gear 140 and the rotating body 17 rotates, as shown in FIG. 4, the rotational force of the rotating body 17 is transmitted to the rotating cleaning body 12 by the meshing of the transmission member 172 of the rotating body 17 and the transmission receiving member 124 of the rotating cleaning body 12. Thus, in the rotating cleaning body 12, the bearing 121 slides on the shaft 130 of the support part 13 shown in FIG. 1, or the outer periphery rolls on the inner periphery of the bearing 121 connected to the shaft 130, and the shaft body 120 into which the bearing 121 is pressed is rotated together with the cleaning member 122 and the stopper 123 in the opposite direction to the rotational direction of the rotating body 17 (shown in FIG. 4) around the shaft 130 fixed to the side wall 103 or the fixed part 1030 of the case 10. In this embodiment, for example, the rotating cleaning body 12 rotates with its upper portion facing forward, that is, in the counterclockwise direction shown in FIG. 4. As the rotating cleaning body 12 rotates, dust on the area to be cleaned is stirred up by the cleaning member 122, and the stirred up dust is sucked together with air into the dust collection section 21 by the negative pressure acting on the suction port 1000. Note that the user can operate the setting means 24 (shown in FIG. 12) to stop the rotation of the rotating cleaning body 12 as necessary, such as to prevent objects from being caught in the rotating cleaning body 12.

In this way, according to the first embodiment, at least a part of the bearing 121 is built into the shaft 120 of the rotating cleaning body 12, and the rotating cleaning body 12 is rotatably supported by the support part 13 on the side wall 103 of the case 10 via this bearing 121, so that the cleaning member 122 arranged on the outer side of the shaft 120 up to the end of the shaft 120 or the position corresponding to the bearing 121 can be positioned over almost the entire length of the rotating cleaning body 12 or almost the entire width of the case 10. Therefore, by driving the rotating cleaning body 12 to rotate with the power of the drive source 14, the cleaning member 122 can be brought into contact with the part to be cleaned over a range close to the entire width of the case 10, thereby realizing the removal of dirt over a range close to the entire width of the case 10.

In particular, because the support part 13 is connected to the bearing 121 inside the shaft body 120 relative to the rotating cleaning body 12, there is no need to place a connection part between the support part 13 and the shaft body 120 or a bearing on the side of the end of the shaft body 120, and the placement space for the support part 13 can be reduced inside the case 10 or in the suction chamber 100, making the case 10 smaller in the left-right direction and allowing the cleaning member 122 of the rotating cleaning body 12 to be placed close to the side wall 103 of the case 10, reducing the area that the rotating cleaning body 12 cannot reach.

In addition, dust may accumulate on the cleaning member 122 and shaft 120 of the rotating cleaning body 12 over time, so it is preferable to remove the rotating cleaning body 12 from the case 10 so that dust can be removed.

In this embodiment, the support portion 13 is located on the side wall 103 of the case 10 and is connected to the inner periphery of the bearing 121 of the rotating cleaning body 12, so that the rotating cleaning body 12 can be easily attached to and detached from the side wall 103 or the fixed portion 1030 of the case 10.

In addition, since the support part 13 is detachable from the inner circumference of the bearing 121, the rotating cleaning body 12 can be easily removed from the side wall 103 of the case 10 by removing the support part 13 from the bearing 121.

The support part 13 can be removed from the side wall 103 of the case 10 by inserting the support part 13 into the opening 1031 opened in the side wall 103 of the case 10 and connecting it to the bearing 121. Therefore, by removing the support part 13 from the opening 1031, the rotating cleaning body 12 can be easily removed from the case 10 either together with the support part 13 or after removing the support part 13. Furthermore, since a part of the support part 13, for example the blocking part 1310, can be positioned outside the case 10 or inside the opening 1031, the arrangement space of the support part 13 can be suppressed inside the case 10 or the suction chamber 100 compared to the case where the entire support part 13 is positioned inside the case 10 or inside the suction chamber 100, the case 10 can be made smaller in the left-right direction, and the cleaning member 122 of the rotating cleaning body 12 can be positioned up to the vicinity of the side wall 103 of the case 10, thereby reducing the range that the rotating cleaning body 12 cannot reach.

As a result, dust adhering to the cleaning member 122 of the rotating cleaning body 12 or dust entangled at the ends can be removed by removing the rotating cleaning body 12 from the case 10 or the second case part 109, improving maintainability.

In addition, since the support structure of the support part 13 of the rotating cleaning body 12 is symmetrical or approximately symmetrical in the axial direction of the rotating cleaning body 12 at one end and the other end of the rotating cleaning body 12, there is no need to consider the directionality of the mounting of the rotating cleaning body 12 when mounting the rotating cleaning body 12 so that it is supported by the support part 13 on the side wall 103 of the case 10, and the rotating cleaning body 12 can be mounted in the same way regardless of whether the end is on the left or right side, which improves workability.

The rotating cleaning body 12 rotates via the rotation of the rotating body 17 which is rotated by the drive source 14, so there is no need for a power transmission member such as a belt to transmit the power of the drive source 14 to the end of the rotating cleaning body 12, and therefore the range in the left-right direction that cannot be reached by the cleaning member 122 of the rotating cleaning body 12 can be further reduced.

Furthermore, by arranging the driving source 14 coaxially with the rotating body 17, the dimension of the suction port body 1 or the case 10 in the front-to-rear direction can be reduced compared to a configuration in which the driving source 14 and the rotating body 17 are arranged in a front-to-rear direction. Also, by arranging the rotating body 17 and the rotating cleaning body 12 so that the central axis of the rotating body 17 is located above the central axis of the rotating cleaning body 12, it is possible to arrange the rotating body 17 and the rotating cleaning body 12 closer to each other in the front-to-rear direction compared to a configuration in which the rotating body 17 and the rotating cleaning body 12 are arranged in a front-to-rear direction. Therefore, the dimension of the case 10, i.e., the suction port body 1 in the front-to-rear direction can be reduced, and the suction port body 1 can be prevented from becoming large while having a configuration including the rotating body 17 and the rotating cleaning body 12.

By including the above-described suction inlet body 1, it is possible to provide a vacuum cleaner 2 capable of picking up dust up to the vicinity of both sides of the suction inlet body 1.
Second Embodiment
Next, a second embodiment will be described with reference to Fig. 13. Note that the same components and functions as those in the first embodiment are denoted by the same reference numerals and the description thereof will be omitted.

In this embodiment, only one of the support parts 13 is separate from the side wall 103 or the fixed part 1030 of the case 10, and the shaft 130 of the other support part 13 is integrally formed with the side wall 103 or the fixed part 1030 of the case 10.

Therefore, by removing one of the support parts 13 from the bearing 121 and removing the rotary cleaning body 12 from the case 10, it becomes possible to remove the rotary cleaning body 12, for example, by pulling it out to the side of the second case part 109 through the opening 1031. Therefore, the rotary cleaning body 12 can be easily removed from the side wall 103 of the case 10, and dust adhering to the cleaning member 122 of the rotary cleaning body 12 and dust entangled at the end part can be removed by removing the rotary cleaning body 12, thereby improving maintainability and providing the same effects as the first embodiment.
Third embodiment
Next, a third embodiment will be described with reference to Figures 14 and 15. Note that the same components and functions as those in each embodiment are denoted by the same reference numerals and the description thereof will be omitted.

The support part 13 in this embodiment is divided into a shaft side receiving part 134 located on the shaft 120 side of the rotating cleaning body 12, and a case side receiving part 135 located on the side of the side wall 103 or the fixed part 1030 side of the case 10.

The shaft body side bearing 134 is located at the end of the shaft body 120 and is rotatably supported by the bearing 121. In this embodiment, the shaft body side bearing 134 is located inside the shaft body 120, that is, in the hole 1200. The shaft body side bearing 134 has a shaft 1340 inserted into the inner periphery of the bearing 121. The shaft 1340 is rotatably held in the inner periphery of the bearing 121. The shaft 1340 is inserted into the inner periphery of the bearing 121 from the center side or the back side of the shaft body 120 in the axial direction of the shaft body 120 in the hole 1200 of the shaft body 120, and the tip portion protrudes from the end of the shaft body 120 and the stopper opening 1231 of the stopper 123. The shaft body side bearing 134 also has a retaining portion 1341 for preventing the shaft body 120 from coming off the bearing 121. The retaining portion 1341 is formed at the base end of the shaft 1340. In this embodiment, the retaining portion 1341 is formed in a disk shape that extends like a flange in a direction intersecting or perpendicular to the axial direction of the shaft 1340.

In this embodiment, the shaft body side bearing 134 is arranged to be movable along the axial direction of the shaft body 120, and the shaft 1340 is axially slidable relative to the inner periphery of the bearing 121. In addition, the shaft body side bearing 134 is biased by the biasing means 136 in a direction protruding from the end of the shaft body 120.

The biasing means 136 is, for example, a coil spring. The biasing means 136 is disposed inside the shaft body 120, i.e., in the hole portion 1200. The biasing means 136 transmits a biasing force to the shaft body side receiving portion 134 via one end portion to the retaining portion 1341.

Preferably, friction suppression members 137 are disposed between the retaining portion 1341 and the bearing 121, and between the retaining portion 1341 and the biasing means 136. The friction suppression members 137 suppress friction between the retaining portion 1341 and the bearing 121, and between the retaining portion 1341 and the biasing means 136, which occurs as the rotating cleaning body 12 rotates. The friction suppression members 137 are, for example, washers.

In this embodiment, the position of the other end of the biasing means 136 is restricted by the restricting portion 138. That is, the biasing means 136 is located between the restricting portion 138 and the shaft body side receiving portion 134. The restricting portion 138 is located inside the shaft body 120, i.e., inside the hole portion 1200. In the illustrated example, the restricting portion 138 is formed, for example, in a cylindrical shape.

The case side receiving portion 135 is located on the side wall 103 of the case 10 and faces the stopper 123 in the left-right direction. The case side receiving portion 135 is formed in a thin plate shape that has a thickness in the left-right direction. The case side receiving portion 135 may be integral with the side wall 103 or the fixing portion 1030 or may be separate.

The case side receiving portion 135 and the shaft side receiving portion 134 are connected to each other by the connecting portion 139. By the connection by the connecting portion 139, the shaft side receiving portion 134 is fixed integrally to the side wall 103 or the fixed portion 1030 of the case 10 and is held so as not to rotate with the rotating cleaning body 12. Preferably, the connecting portion 139 detachably connects the case side receiving portion 135 and the shaft side receiving portion 134. The connecting portion 139 may be configured arbitrarily, for example, one side is formed as a convex portion and the other side is formed as a concave portion or a hole portion. In this embodiment, a convex portion 1390 is protruded from the tip portion of the shaft 1340, and a hole portion 1391 into which the convex portion 1390 is fitted is formed penetrating the case side receiving portion 135. The connection of the connecting portion 139 can be released by pressing the protrusion 1390 against the bias of the biasing means 136 from the outside of the case side receiving portion 135 through the hole 1391. In the illustrated example, the protrusion 1390 is formed in a non-rotating shape, such as a rectangular column shape.

Then, the rotary cleaning body 12 is formed by inserting the regulating portion 138 and the biasing means 136 into the hole 1200 at the end of the preformed shaft body 120, inserting the shaft body side receiving portion 134 holding the friction suppression members 137, 137 so as to abut against the biasing means 136, and pressing the bearing 121 into the hole 1200 to insert the shaft 1340 of the shaft body side receiving portion 134 into the inner periphery of the bearing 121. Also, the cleaning member 122 and the transmission receiving member 124 are attached to the mounting groove 1201, respectively, and the stopper 123 is fitted to the end of the shaft body 120 to hold the cleaning member 122 and the transmission receiving member 124 against the shaft body 120. This rotary cleaning body 12 is disposed between the side portions 1090, 1090 of the second case portion 109, i.e., between the fixing portions 1030, 1030 of the side wall 103 of the case 10. At this time, the tip of the shaft 1340 of the shaft side receiving part 134 protruding from the inner periphery of the bearing 121 and the stopper opening 1231 of the stopper 123 is pressed against the case side receiving part 135 located on the side wall 103 of the case 10 against the biasing force of the biasing means 136, while the shaft side receiving part 134 and the case side receiving part 135 are connected by the connecting part 139. With the convex part 1390 fitted into the hole part 1391, the shaft side receiving part 134 is pressed against the case side receiving part 135 by the biasing force of the biasing means 136, and the connected state by the connecting part 139 is maintained. In this embodiment, by performing the above-mentioned work on both ends of the rotating cleaning body 12, the rotating cleaning body 12 is rotatably held between the fixing parts 1030 of the side wall 103 of the case 10. Other work for assembling the suction port body 1 is the same as in each embodiment.

In the suction port body 1, when the rotor 17 rotates due to the drive source 14, the rotational force of the rotor 17 is transmitted to the rotary cleaning body 12 by the engagement between the transmission member 172 of the rotor 17 and the transmission receiving member 124 of the rotary cleaning body 12. In the rotary cleaning body 12, the bearing 121 slides on the shaft 1340 of the support part 13, or the outer periphery rolls on the inner periphery of the bearing 121 connected to the shaft 130, and the shaft body 120 into which the bearing 121 is pressed is rotated together with the cleaning member 122 and the stopper 123 in the opposite direction to the rotational direction of the rotor 17, centered on the shaft 1340 fixed to the side wall 103 or the fixed part 1030 of the case 10 via the case side receiving part 135.

In this way, the rotating cleaning body 12 is rotatably supported on the side wall 103 of the case 10 by the support part 13 via the bearing 121, at least a part of which is built into the shaft body 120, and by having the same configuration as each embodiment, it is possible to achieve the same effects as each embodiment, such as being able to position the cleaning member 122 up to the end of the rotating cleaning body 12.

The support part 13 is composed of a shaft side receiving part 134 located at the end of the shaft 120 and rotatably supported by the bearing 121, and a case side receiving part 135 located on the side wall 103 of the case 10 and connected to the shaft side receiving part 134. By disconnecting the connection between the shaft side receiving part 134 and the case side receiving part 135, the rotating cleaning body 12 can be easily attached and detached from the side wall 103 of the case 10 or the fixed part 1030.

Furthermore, the shaft side receiving part 134 is positioned inside the shaft 120 to allow the inner periphery of the bearing 121 to slide in the axial direction, and the shaft side receiving part 134 is biased by the biasing means 136 in a direction protruding from the end of the shaft 120, so that the shaft side receiving part 134 is disposed inside the rotary cleaning body 12 and the shaft side receiving part 134 can be firmly connected to the case side receiving part 135, and the rotation of the rotary cleaning body 12 can be stabilized. In addition, by pushing the convex part 1390 through the hole part 1391 against the biasing force of the biasing means 136 at one end side of the rotary cleaning body 12 with a jig or the like, the connection between the shaft side receiving part 134 and the case side receiving part 135 of the support part 13 on the other end side of the rotary cleaning body 12 can be easily released, so that the rotary cleaning body 12 can be easily removed from the side wall 103 of the case 10 or the fixed part 1030.

In addition, in the support part 13 at either end of the rotating cleaning body 12, the shaft side receiving part 134 does not need to be slidable relative to the bearing 121, and may be fixed to the bearing 121. In that case, the biasing means 136 and the regulating part 138 are not necessary for that support part 13.

Also, for example, the support portion 13 on one end side of the rotating cleaning body 12 may be configured as in the first or second embodiment, and the support portion 13 on the other end side may be configured as in the third embodiment. In other words, the support portions 13 on both ends of the rotating cleaning body 12 may have different configurations.
Fourth embodiment
Next, a fourth embodiment will be described with reference to Fig. 16. Note that the same components and functions as those in each embodiment will be denoted by the same reference numerals and the description thereof will be omitted.

In this embodiment, the driving source 14 transmits power to the rotating body 17 by a power transmission member 141 instead of a reduction gear 140. The power transmission member 141 is, for example, a timing belt, and is wound around the rotating shaft 142, which is the output shaft of the driving source 14, and the power receiving part 1700 formed at one end of the shaft part 170 of the rotating body 17. The power transmission member 141 is not limited to this, and may be a gear train or the like that extends between the rotating shaft 142 and the power receiving part 1700. The driving source 14 is located further rearward of the rotating body 17, and is arranged so that the axial direction is parallel or approximately parallel to the rotating cleaning body 12 and the rotating body 17.

Even with this configuration, the rotating cleaning body 12 can be configured in the same way as in each of the embodiments, such as being rotatably supported by the support portion 13 on the side wall 103 of the case 10 via a bearing 121, at least a portion of which is built into the shaft body 120, and the cleaning member 122 can be positioned up to the end of the rotating cleaning body 12, thereby achieving the same effects as in each of the embodiments.

Also, by arranging the rotating cleaning body 12 and the rotating body 17 in front and behind each other, it is possible to position the transmission member 172 of the rotating body 17 so that it comes into contact with the part to be cleaned. For example, by using the transmission member 172 as a cleaning member, both the rotating cleaning body 12 and the rotating body 17 can scrape off dust from the part to be cleaned.

The location of the driving source 14 is not limited to the outside of the rotating body 17, but may be set inside the shaft portion 170 of the rotating body 17. The driving source 14 may be disposed inside the shaft body 120 of the rotary cleaning body 12, so that the rotating body 17 is not used.
Fifth embodiment
Next, a fifth embodiment will be described with reference to Fig. 17. Note that the same components and functions as those in each embodiment will be denoted by the same reference numerals and the description thereof will be omitted.

In this embodiment, the cleaning member 122 is folded back at the end of the shaft 120, and is inserted into the gap G between the inner periphery of the hole 1200 and the outer periphery of the bearing 121 from the end side of the shaft 120. The gap G is formed so as to expand the hole 1200 at a position corresponding to the end of the cleaning member 122 at the edge of the hole 1200 of the shaft 120. In other words, the cleaning member 122 has a portion that protrudes further to the side than both ends of the shaft 120 or the bearing 121. When the cleaning member main body 1221 is a brush bristles, the cleaning member main body 1221 spreads out radially at this folded back portion and is arranged in the axial direction of the rotating cleaning body 12 up to the vicinity of the position corresponding to the edge of the stopper 123 and the suction port 1000.

As a result, the range in which the cleaning members 122 are positioned can be further expanded in the axial direction, i.e., left-right direction, of the rotating cleaning body 12, thereby further reducing the range that the cleaning members 122 of the rotating cleaning body 12 cannot reach.

Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention to these embodiments. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention and its equivalents described in the claims.

REFERENCE SIGNS LIST 1 suction inlet body 2 vacuum cleaner 10 case 12 rotary cleaning body 13 support portion 14 drive source 17 rotary body 103 side wall 120 shaft body 121 bearing 122 cleaning member 134 shaft body side receiving portion 135 case side receiving portion 136 biasing means
139 Connection
1031 Opening
1340 shaft
1390 convex part
1391 hole

Claims (3)

Case and
A driving source;
a rotating cleaning body having a shaft body, a bearing at least a portion of which is built into the shaft body, and a cleaning member disposed on an outer side of the shaft body up to a position corresponding to an end of the shaft body or the bearing, the rotating cleaning body being rotationally driven by the power of the drive source;
a support portion that rotatably supports the rotary cleaning body on a side wall of the case via the bearing ,
The support portion is
a shaft body side receiving portion that includes a shaft that is axially slidable on an inner peripheral portion of the bearing, the shaft body side receiving portion being located inside the shaft body at an end portion of the shaft body and rotatably supported by the bearing;
A case side receiving portion located on a side wall of the case;
a biasing means for biasing the shaft body side receiving portion in a direction protruding from the end portion of the shaft body;
a connecting portion that connects the shaft side receiving portion and the case side receiving portion,
The connecting portion includes a protrusion formed on the shaft of the shaft-side receiving portion and a hole formed through the case-side receiving portion, and the protrusion of the shaft-side receiving portion biased by the biasing means is fitted into the hole of the case-side receiving portion to connect the shaft-side receiving portion and the case-side receiving portion, and the connection between the shaft-side receiving portion and the case-side receiving portion is released by pushing the protrusion out of the hole against the bias of the biasing means.
A suction mouth body characterized by : a rotor that is rotated by the drive source,
The suction port body according to claim 1 , wherein the rotary cleaning body is rotated by rotation of the rotor. A vacuum cleaner comprising the suction mouth body according to claim 1 or 2 .

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