Vacuum cleaner

Abstract

To realize a vacuum cleaner to be easily gripped and having high operability.SOLUTION: A vacuum cleaner 1 comprises: a main body 12 which internally includes an electric blower 70 for generating suction force and has a suction port 14 arranged on a lower side in a vertical direction; a dust collection part 20 for collecting dust; and a handle part 100 arranged on an upper side of the main body 12 in the vertical direction. The handle part 100 has a bar shape which is bent at a bending position 102 arranged in a middle part. The handle part extends from a front side in a front and rear direction orthogonal to the vertical direction in the main body 12 and extends from the bending position 102 toward a rear side of the main body 12.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a vacuum cleaner.

Background Art

[0002] Conventionally, as disclosed in Patent Document 1 below, there is provided a vacuum cleaner in which a rod-shaped handle with a built-in battery is provided on a cleaner body having a detachable suction port body with a tip opening and having a fan motor for generating suction force inside.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above-described conventional vacuum cleaner, the handle extends straight backward from the cleaner body. Therefore, when the tip opening or the suction port body of the conventional vacuum cleaner is applied to the floor surface, it is difficult to hold the handle, and there is a problem of low operability.

[0005] Therefore, an object of the present invention is to realize a vacuum cleaner that is easy to hold and has high operability.

Means for Solving the Problems

[0006] The vacuum cleaner according to an embodiment of the present invention provided to solve the above-described problems includes a main body portion having an electric blower that generates a suction force inside, a suction port on the lower side in the vertical direction, a dust collection portion where dust is collected, and a handle portion provided above the main body portion in the vertical direction. The handle portion is in a rod shape that bends at a bending position provided midway, extends from the front side in the front-rear direction orthogonal to the vertical direction of the main body portion, and extends from the bending position toward the rear side of the main body portion.

[0007] In the vacuum cleaner of the present invention, the rod-shaped handle portion provided above the main body portion is provided so as to extend from the front side of the main body portion, bend at the bending position, and extend toward the rear side of the main body portion. Therefore, in the vacuum cleaner of the present invention, it is easy for the user to grip the handle portion when cleaning, and the operability is high.

Effect of the Invention

[0008] According to the present invention, a vacuum cleaner that solves the above problems can be provided.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Mode for Carrying Out the Invention

[0010] Hereinafter, the electric vacuum cleaner 1 according to an embodiment of the present invention and the vacuum cleaner system S including the same will be described in detail with reference to the drawings. In the following description, after schematically explaining the overall configurations of the electric vacuum cleaner 1 and the vacuum cleaner system S, the main parts will be described in more detail. In the following description, unless otherwise specified, the positional relationships such as the vertical direction, the front-rear direction, and the width direction will be described based on the state where the electric vacuum cleaner 1 is standing as shown in FIG. 1.

[0011] ≪Regarding the overall configurations of the electric vacuum cleaner 1 and the vacuum cleaner system S≫ As shown in FIG. 1, the vacuum cleaner system S includes an electric vacuum cleaner 1 and a vacuum cleaner support device 120. Note that the vacuum cleaner system S of the present embodiment is exemplified as including the vacuum cleaner support device 120, but it may not include the vacuum cleaner support device 120.

[0012] As shown in FIG. 1, the vacuum cleaner 1 is a cleaner having a stick-shaped (vertical) appearance. The vacuum cleaner 1 can be, for example, a cleaner that obtains power from an external power source via a power cord, but in this embodiment, it is a rechargeable type. As shown in FIG. 1, the vacuum cleaner 1 includes a cleaner main body 10, a dust collection unit 20, a tube unit 30, and a cleaning tool 40 (suction tool).

[0013] As shown in FIGS. 1 and 2, the cleaner main body 10 forms the main body of the vacuum cleaner 1 and is a part that exhibits the function of generating a suction force for dust collection. Specifically, as will be described in detail later, inside the main body portion 12 (main body case) that forms the housing, the cleaner main body 10 includes an electric blower 70, a battery 80, a control unit 90, and other components. Also, as shown in FIGS. 1 to 5, the cleaner main body 10 includes a handle portion 100 outside the main body portion 12. Further, the cleaner main body 10 has a suction port 14 on the lower side in the vertical direction. The suction port 14 is capable of connecting the tube unit 30 and the cleaning tool 40.

[0014] The electric blower 70 is for sucking air to generate an air flow. Also, the battery 80 is electrically connected to the electric blower 70. The battery 80 is for supplying power to the electric blower 70 and other electrical components provided in the vacuum cleaner 1. The control unit 90 is for controlling the operation of the vacuum cleaner 1. The control unit 90 controls the operation of the vacuum cleaner 1 by controlling the power supply to electrical components such as the electric blower 70.

[0015] The handle portion 100 is for the user of the vacuum cleaner 1 to grip. The handle portion 100 is a rod-shaped portion provided on the upper side in the vertical direction of the main body portion 12 so as to continue in the longitudinal direction (vertical direction) of the cleaner main body 10. Also, an operation unit 106 is provided in the vicinity of the handle portion 100. The operation unit 106 is for operating the vacuum cleaner 1 and is, for example, for performing operations such as turning the power on and off.

[0016] The dust collection unit 20 is a part where dust sucked by the vacuum cleaner 1 is collected. The dust collection unit 20 is provided so as to be continuous with the cleaner main body 10. The dust collection unit 20 communicates with the inside and outside of the cleaner main body 10 through a suction port 14 provided on the lower end side of the cleaner main body 10.

[0017] The vacuum cleaner 1 and the vacuum cleaner system S of the present embodiment are generally configured as described above. The vacuum cleaner 1 and the vacuum cleaner system S have various features such as the configuration of the handle portion 100, the layout of the handle portion 100, the configuration of the cleaning tool 40, the configuration of the cleaner support device 120, and the operation control by the control unit 90. Hereinafter, the characteristic configurations of the vacuum cleaner 1 and the vacuum cleaner system S will be described in more detail.

[0018] ≪Regarding the configuration of the handle portion 100≫ As shown in FIGS. 1 to 5, the handle portion 100 is provided above the main body portion 12 in the vertical direction. The handle portion 100 has a rod shape. One end side (base end portion) of the handle portion 100 is continuous with the main body portion 12, and the other end side (tip end portion) is a free end. The handle portion 100 is formed so as to extend from a position on the front side in the front-rear direction in the main body portion 12. Further, the handle portion 100 has a bent shape at a bent position 102 in the middle from the base end portion to the tip end portion. The handle portion 100 extends from the bent position 102 toward the rear side of the main body portion 12.

[0019] The handle portion 100 has a rear surface portion 100a forming the rearward portion in the front-rear direction and a front surface portion 100b forming the forward portion. At positions corresponding to the bending position 102 in the rear surface portion 100a and the front surface portion 100b, a rear surface bending portion 102a and a front surface bending portion 102b are provided. The rear surface bending portion 102a and the front surface bending portion 102b are each curved with a predetermined curvature and are in a positional relationship offset in the curvature radius direction. Further, in the front surface portion 100b, a portion located at a position facing (offset) the rear surface bending portion 102a in the front-rear direction is a flat surface 104. The flat surface 104 is a plane that extends along the vertical direction. An operation portion 106 is provided on the flat surface 104. The operation portion 106 has buttons arranged for performing operations such as power operation of the vacuum cleaner 1 and switching of the operation mode.

[0020] ≪Regarding the layout of the handle portion 100≫ Subsequently, the layout of the handle portion 100 will be described. The handle portion 100 also has features in its layout with respect to the electric blower 70 and the battery 80 provided inside the cleaner body 10. Hereinafter, after briefly explaining the internal structure of the cleaner body 10, the layout of the handle portion 100 will be described.

[0021] As shown in FIG. 2, the cleaner body 10 stores an electric blower 70, a battery 80, a control unit 90, etc. in a hollow main body portion 12 forming a housing. The main body portion 12 has an electric blower storage portion 22, a battery accommodation portion 24, a dust collection portion component portion 26, and a substrate storage portion 28. Note that the battery accommodation portion 24 may be provided separately from the main body portion 12.

[0022] The electric blower storage portion 22 is provided above the cleaner body 10 with respect to the dust collection portion component portion 26. An electric blower 70 is assembled in the electric blower storage portion 22 so as to be able to generate an air flow that flows from the suction port 14 provided on the lower end side of the cleaner body 10 into the dust collection portion component portion 26. The battery accommodation portion 24 is provided at a position adjacent to the rear side in the front-rear direction with respect to the electric blower storage portion 22.

[0023] The battery housing portion 24 is configured such that an opening 24a provided on the top surface side of the cleaner main body 10 can be opened and closed by a lid 24b. By removing the lid 24b, the battery 80 can be inserted and removed in the vertical direction through the opening 24a. The opening 24a is located at a position vertically opposite to the handle portion 100. The opening surface 24c forming the opening 24a is formed substantially horizontally in the front-rear direction as shown in FIG. 5 and the like. Note that the opening surface 24c may be inclined so as to move away from the handle portion 100 as it goes from the front side to the rear side in the front-rear direction. Thereby, when removing the battery 80, interference with the handle portion 100 can be reduced.

[0024] The dust collection unit component 26 is a part that constitutes the dust collection unit 20. The dust collection unit component 26 is provided at a position adjacent to the lower side in the vertical direction with respect to the electric blower storage unit 22. The dust collection unit component 26 communicates with the suction port 14. Here, the dust collection unit 20 can be configured by a so-called cyclone type dust collection device or the like (a configuration in which a pipe having the suction port 14 and the dust collection unit component 26 are arranged in the front-rear direction of the cleaner main body 10), but in the present embodiment, it is a so-called paper pack type. Therefore, the dust collection unit component 26 is provided such that a connection portion 26a for attaching the paper pack communicates with the suction port 14. Therefore, by accommodating the paper pack connected to the connection portion 26a in the dust collection unit component 26, the dust collection unit 20 can be formed.

[0025] The board housing portion 28 is a part that houses the board constituting the control unit 90. In the present embodiment, the space above the electric blower storage unit 22 is the board housing portion 28. The board constituting the control unit 90 is arranged along a plane orthogonal to the rotation axis of the electric blower 70. Further, the operation control unit that controls the operation unit 106 is arranged along a portion forming a flat surface 104 on the front surface portion 100b constituting the handle portion 100.

[0026] The handle part 100 is provided with a layout as shown in FIG. 2 with reference to the electric blower 70, the battery 80, the control part 90, etc. assembled to the main body part 12 as described above. Specifically, when viewed from the vertical direction, the handle part 100 is arranged so as to overlap at least partially with the battery 80. In the present embodiment, in a state where the vacuum cleaner 1 is viewed from the vertical direction, a portion on the tip side (free end side) of the handle part 100 has a layout that overlaps with the battery 80 (battery housing part 24). Further, in a state where the vacuum cleaner 1 is viewed from the vertical direction, one end (base end side) of the handle part 100 on the side connected to the main body part 12 has a layout that overlaps with the electric blower 70. Furthermore, one end (base end side) of the handle part 100 on the side connected to the main body part 12 is located on the front side of the central axis L of the electric blower 70 in the front-rear direction. The other end (free end side) of the handle part 100 is located on the rear side of the central axis L of the electric blower 70 in the front-rear direction.

[0027] ≪Configuration of the cleaning tool 40≫ Subsequently, the configuration of the cleaning tool 40 will be described in detail with reference to FIGS. 6 to 11 and the like. The cleaning tool 40 is for taking in dust from the outside, and it is possible to suck in air and dust from the outside by the suction force of the electric blower 70. As shown in FIGS. 6 and 7 and the like, the cleaning tool 40 has a cleaning tool main body part 42 (main body part) and a joint part 44. Further, the cleaning tool 40 has a rotary cleaning body 46 and a cleaning body drive part 48 (drive part) inside the cleaning tool main body part 42.

[0028] The cleaning tool main body part 42 is a part that is placed on the floor during cleaning, and has a long shape in the left-right direction with respect to the front-rear direction, which is the direction of operation by the user during cleaning. As shown in FIG. 6 and the like, the cleaning tool main body part 42 has a rotary cleaning body arrangement part 60, an inlet / outlet opening 62, and a housing part 66.

[0029] The rotary cleaning body arrangement part 60 is the part where the rotary cleaning body 46 is arranged. The rotary cleaning body arrangement part 60 extends in the left - right direction of the cleaning tool main body part 42 and has a hollow space capable of accommodating the rotary cleaning body 46.

[0030] The intake opening 62 is the part opened on the bottom surface side of the cleaning tool main body part 42 for taking in dust. In this embodiment, the rotary cleaning body arrangement part 60 is provided in the space where the intake opening 62 is formed.

[0031] As shown in FIG. 6, the accommodating part 66 is for accommodating the driving part 210 which forms the cleaning body driving part 48 to be described in detail later, wiring for supplying power to the driving part 210, etc. The accommodating part 66 is arranged such that the driving part 210 and the wiring can be disposed at a position deviated from the dust passage route. In this embodiment, the accommodating part 66 is provided so as to be aligned with the rotary cleaning body arrangement part 60 in the front - rear direction (behind the rotary cleaning body arrangement part 60).

[0032] The joint part 44 is provided so as to communicate with the communication part 45 at a position on the back side (rear side) of the cleaning tool main body part 42 of the electric vacuum cleaner 1 among the above - described cleaning tool main body parts 42. The joint part 44 is rotatably attached to the cleaning tool main body part 42 within a predetermined rotation range (at least one of the front - rear direction and the left - right direction). The joint part 44 is the part to which the pipe part 30 is connected. The joint part 44 is cylindrical and communicates with the communication part 45 at the base end part. Further, when the negative pressure of the electric blower 70 acts on the small holes of the communication part 45, the air taken into the cleaning tool main body part 42 from the intake port passes through the inside of the driving part 210 and flows into the small holes of the communication part 45.

[0033] As shown in FIGS. 6 and 7, the rotary cleaning body 46 is a cylindrical member accommodated in the rotary cleaning body arrangement part 60 and rotatably supported. The rotary cleaning body 46 receives power from the cleaning body driving part 48 to be described in detail later and is rotatable in the rotary cleaning body arrangement part 60. The rotary cleaning body 46 has a cleaning body 200 extending in the longitudinal direction (left - right direction) of the cleaning tool main body part 42 and a mounting part 202.

[0034] The attachment part 202 is a part used for attaching the rotary cleaning body 46 to the cleaning tool main body part 42. The rotary cleaning body 46 is rotatably supported with respect to the cleaning tool main body part 42 by attaching attachment parts 202, 202 provided at both ends (hereinafter, the two may be distinguished as "attachment part 202a" and "attachment part 202b" as necessary) to a predetermined attachment position provided in the cleaning tool main body part 42.

[0035] On the other hand, as shown in FIG. 9, the attachment part 202b supports the end part on the other end side in the axial direction of the rotary cleaning body 46 (the side opposite to the attachment part 202a). The attachment part 202b includes a first attachment body 202x that can be connected to a second attachment body 202y described later. The first attachment body 202x is fixed to the end part of the cleaning body 200. The second attachment body 202y is connected to a driven pulley 216 described later and is disposed on the side of the cleaning tool main body part 42 (lower case 42a). The first attachment body 202x and the second attachment body 202y are connectable and separable in the axial direction.

[0036] The first attachment body 202x includes an engaged part 202e and a first flange part 202i. The engaged part 202e is formed in a concave shape on the end face of the first attachment body 202x. The shape of the engaged part 202e may be any shape as long as it is configured to lock in the rotational direction, but in the present embodiment, it is cross-shaped. The engaged part 202e is a part into which an engaging part 202j of the second attachment body 202y described later can be fitted and engaged. The first flange part 202i is provided so as to bulge outward in the radial direction at the end part of the first attachment body 202x (the end part on the side of the second attachment body 202y).

[0037] As shown in FIGS. 8 and 9, the second attachment body 202y has an engaging portion 202j and a shaft portion 202k. The engaging portion 202j protrudes in the axial direction at the end of the second attachment body 202y and is engageable with the above-described engaged portion 202e. The shape of the engaging portion 202j may be any shape, but in the present embodiment, it has a cross-shaped shape similar to that of the engaged portion 202e. The shaft portion 202k is a shaft body provided at the axial center position of the second attachment body 202y. The shaft portion 202k is inserted from one side to the other side of a plate-shaped support portion 220 provided on the cleaning tool main body portion 42. The shaft portion 202k is a shaft body to which the driven pulley 216 is fixed. Although the shaft portion 202k is configured as a part of the second attachment body 202y, the portion constituting the shaft portion 202k may be configured as a member separate from the second attachment body 202y having the engaging portion 202j and the like. The shaft portion 202k extends in the rotational axis direction with the portion provided with the engaging portion 202j as the base end, and the driven pulley 216 is fixed to an intermediate portion in the axial direction thereof. Therefore, with reference to the driven pulley 216, the engaging portion 202j forming the second attachment body 202y is located on one side (base end side) in the axial direction. The shaft portion 202k is inserted through the axial center position of the driven pulley 216 of the cleaning body driving portion 48 described later and is rotatable integrally with the driven pulley 216. Therefore, the rotary cleaning body 46 is rotatable in conjunction with the driven pulley 216 in a state where the first attachment body 202x provided at one end side is connected to the second attachment body 202y.

[0038] Further, the shaft portion 202k is rotatably supported by a first bearing portion 202z (first driven-side bearing portion) on the tip side. The first bearing portion 202z is constituted by a ball bearing. The shaft portion 202k is rotatable with respect to the outer ring of the first bearing portion 202z together with the inner ring of the first bearing portion 202z. The first bearing portion 202z is fitted into a hole provided in a driven-side bearing holding portion 202p (driven-side bearing holding portion) that is rectangular (square in this embodiment) in a front view and plate-shaped, and the outer ring is held non-rotatably with respect to the driven-side bearing holding portion 202p. Further, as shown in FIGS. 6 and 8, the driven-side bearing holding portion 202p is held with respect to the lower case 42a by being inserted into a slit-shaped insertion portion 202m provided in the lower case 42a. Therefore, the rotating rotary cleaning body 46 can be stably supported.

[0039] The cleaning tool 40 is configured to drive the rotary cleaning body 46 by receiving the power output from the cleaning body driving portion 48 by providing the cleaning body driving portion 48. As shown in FIGS. 6 to 10, the cleaning body driving portion 48 includes a driving portion 210, a belt 212, an output-side structure DM including an output-side pulley 214, a driven-side structure DS including a driven-side pulley 216, and the like.

[0040] The driven-side structure DS transmits the power of the driving portion 210 to the rotating body. The driven-side structure DS includes a shaft portion 202k, a driven-side pulley 216, a guide portion 250 (driven-side guide portions 270, 272), an engaging portion 202j, a retaining member 282, a first bearing portion 202z (first driven-side bearing portion), a driven-side bearing holding portion 202p, a second bearing portion 225 (second driven-side bearing portion), and a support portion 220. The driven-side structure DS is arranged such that the engaging portion 202j, the driven-side pulley 216, and the guide portion 250 (driven-side guide portions 270, 272) are arranged in this order. Further, the driven-side structure DS has a configuration in which the engaging portion 202j, the driven-side pulley 216, and the first bearing portion 202z are arranged in this order. Further, in the driven-side structure DS, the driven-side pulley 216 and the guide portion 250 (driven-side guide portions 270, 272) are arranged between the second bearing portion 225 and the first bearing portion 202z.

[0041] The drive unit 210 is composed of a motor 210a provided within the cleaning tool main body 42, an output-side pulley 214, etc. The drive unit 210 has an output-side pulley 214 provided on the rotating shaft of the motor 210a. The drive unit 210 is arranged in a housing portion 66 provided on the back side further than the rotary cleaning body 46. Also, the belt 212 is composed of a toothed endless belt. The belt 212 is looped around the output-side pulley 214 and the driven-side pulley 216.

[0042] The output-side pulley 214 is a pulley connected to the output shaft (rotating shaft) of the drive unit 210. The output-side pulley 214 is composed of a toothed pulley having teeth extending in the axial direction on the circumferential portion around which the belt 212 is looped. The output-side pulley 214 is pivotally supported by an output-side bearing portion 214z so as to be rotatable at the tip side. The output-side bearing portion 214z has the same configuration as the above-described first bearing portion 202z. The output-side bearing portion 214z is composed of a ball bearing. The output shaft of the drive unit 210 is rotatable with respect to the outer ring of the output-side bearing portion 214z together with the inner ring of the output-side bearing portion 214z. Also, the output-side bearing portion 214z is fitted into a hole provided in a plate-shaped output-side bearing holding portion 214p that is rectangular (square in this embodiment) when viewed from the front, and the outer ring is held non-rotatably with respect to the output-side bearing holding portion 214p. Also, as shown in FIGS. 6 and 8, the output-side bearing holding portion 214p is held with respect to the lower case 42a by being inserted into a slit-shaped insertion portion 202n provided in the lower case 42a.

[0043] The driven-side pulley 216 is a toothed pulley that constitutes the attachment portion 202b. The driven-side pulley 216 is a pulley that is integrally rotatable with the shaft portion 202k of the above-described second attachment body 202y. The driven-side pulley 216 is composed of a toothed pulley having teeth extending in the axial direction on the circumferential portion around which the belt 212 is looped.

[0044] The cleaning body driving unit 48 is configured such that a belt 212 made of an endless belt is looped between the output-side structure DM and the driven-side structure DS. Therefore, by operating the driving unit 210, the rotational power can be transmitted to the mounting portion 202b side, and the rotary cleaning body 46 can be rotationally driven within the space of the cleaning tool main body portion 42.

[0045] Also, as shown in FIGS. 6 to 9, each member constituting the cleaning body driving unit 48 is supported by a support portion 220. The support portion 220 is erected in a region on the side of the cleaning tool main body portion 42 where the second mounting body 202y is mounted. In other words, the support portion 220 is arranged side by side with the rotary cleaning body 46 in the axial direction of the rotary cleaning body 46. Further, the support portion 220 is a plate-like member extending along the arrangement direction of the rotary cleaning body 46 and the driving unit 210. The output-side pulley 214, the driven-side pulley 216, and the belt 212 are arranged on the side opposite to the rotary cleaning body 46 with respect to the support portion 220.

[0046] The cleaning body driving unit 48 also includes a guide portion 250. The output-side structure DM has guide portions 250 formed so as to protrude radially from the peripheral portion on both sides in the rotational axis direction, and the driven-side structure DS has guide portions 250 formed so as to protrude radially from the peripheral portion on both sides in the rotational axis direction. Hereinafter, among the guide portions 250, those of the output-side structure DM are also referred to as output-side guide portions 260, 262, and those of the driven-side structure DS are also referred to as driven-side guide portions 270, 272.

[0047] The output-side guide portions 260 and 262 are arranged on one side and the other side in the axial direction of the rotation axis of the output-side pulley 214, respectively. At least one side of the output-side guide portions 260 and 262 is constituted by a member different from the output-side pulley 214. In the present embodiment, among the sides of the output-side pulley 214, the output-side guide portion 260 arranged on the side of the proximal end side (motor 210a side) of the output shaft of the drive unit 210 is integrally formed with the output-side pulley 214. On the other hand, among the sides of the output-side pulley 214, the output-side guide portion 262 arranged on the side of the distal end side (output-side bearing portion 214z side) of the output shaft of the drive unit 210 is constituted by a member (separate body) different from the output-side pulley 214. The output-side guide portion 262 is a disk-shaped member having a diameter larger than the peripheral portion of the output-side pulley 214.

[0048] The output-side guide portion 262 has an insertion hole 264 through which the output shaft of the drive unit 210 can be inserted at approximately the center. Therefore, by inserting the output shaft of the drive unit 210 through both the insertion hole 264 formed across the output-side guide portion 260 and the output-side pulley 214 at the axial center position of the output-side pulley 214 and the insertion hole 266 formed at the center portion of the output-side guide portion 262, the output-side guide portions 260 and 262 are pivotally supported with respect to the output shaft of the drive unit 210 together with the output-side pulley 214.

[0049] The driven-side guide portions 270 and 272 are arranged on one side and the other side in the axial direction of the rotation axis of the driven-side pulley 216, respectively. At least one side of the driven-side guide portions 270 and 272 is constituted by a member different from the driven-side pulley 216. In the present embodiment, among the sides of the driven-side pulley 216, the driven-side guide portion 270 arranged on the side of the proximal end side (rotary cleaning body 46 side) of the shaft portion 202k of the second attachment body 202y is integrally formed with the driven-side pulley 216. On the other hand, among the sides of the driven-side pulley 216, the driven-side guide portion 272 arranged on the side of the distal end side (first bearing portion 202z side) of the shaft portion 202k is constituted by a member (separate body) different from the driven-side pulley 216. The driven-side guide portion 272 is a disk-shaped member having a diameter larger than the peripheral portion of the driven-side pulley 216.

[0050] The driven-side guide portion 272 has an insertion hole 274 through which the shaft portion 202k can be inserted at approximately the center thereof. Therefore, by inserting the shaft portion 202k through both the insertion hole 274 formed in the driven-side pulley 216 and the insertion hole 276 formed in the central portion of the driven-side guide portion 272 at the axial center position of the driven-side pulley 216, the driven-side guide portions 270 and 272 are pivotally supported with respect to the shaft portion 202k together with the driven-side pulley 216. In this way, since the driven-side guide portion 272 supports the driven-side pulley 216 from the side, the rotational stability of the driven-side pulley 216 can be improved. Further, since the driven-side guide portion 272 supports the belt 212 from the side, the belt 212 can be prevented from coming off.

[0051] Here, the overall configuration of the cleaning body drive unit 48 formed by combining the above-described respective components will be described in more detail. An insertion hole 274 that opens in a substantially oval shape is provided at the axial center position of the driven pulley 216. Further, at the center of the driven guide portion 272, an insertion hole 276 that opens in a substantially oval shape similar to the insertion hole 274 is provided. The shaft portion 202k of the second attachment body 202y is a shaft body having an outer appearance shape that is substantially oval similar to the insertion holes 274 and 276. Further, the support portion 220 is provided with a shaft support portion 220c that rotatably supports (supports) the second attachment body 202y. The shaft support portion 220c is provided with a second bearing portion 225 (second driven-side bearing portion) that rotatably supports the shaft portion 202k by inserting it therethrough. That is, the second bearing portion 225 is supported by the support portion 220. The second bearing portion 225 is disposed on the side opposite to the driven guide portions 270 and 272 with respect to the driven pulley 216. Further, the shaft portion 202k is rotatably supported by a first bearing portion 202z at the tip end side. Therefore, the second attachment body 202y is fixed to the driven pulley 216 in a state where the shaft portion 202k is inserted through the second bearing portion 225 provided in the shaft support portion 220c of the support portion 220, the insertion holes 274 and 276 provided in the driven pulley 216 and the driven guide portion 272, and the first bearing portion 202z. By fixing a disk-shaped retaining member having a diameter larger than the inner ring of the first bearing portion 202z to the end portion of the shaft portion 202k inserted through the first bearing portion 202z with a screw 280, the shaft portion 202k is prevented from coming off the first bearing portion 202z. Due to such a configuration, by connecting the first attachment body 202x provided on the rotating cleaning body 46 side to the second attachment body 202y, the rotating cleaning body 46 can rotate in conjunction with the driven pulley 216. For this reason, the second attachment body 202y can also be expressed as having a part of the driven pulley 216.

[0052] In the support portion 220, at the position on the front side of the cleaning tool main body portion 42, a shaft support portion 220c is provided for rotatably supporting (supporting) a second attachment body 202y provided at the end of the rotary cleaning body 46. Further, at the position on the back side of the cleaning tool main body portion 42 in the support portion 220, a receiving portion 220d having a notch-shaped so as to be able to support the drive portion 210 is provided. Specifically, the drive portion 210 has an output shaft provided on a motor 210a forming a motor, and includes a drive machine main body 210a1 forming most of the motor and a bulging portion 210a2 having a smaller diameter than the drive machine main body 210a1 and bulging in the axial direction. The output shaft is provided on the bulging portion 210a2.

[0053] The receiving portion 220d is formed so as to extend downward from the upper end of the support portion 220. Therefore, when incorporating the drive portion 210 in which the output shaft is inserted through the output-side pulley 214, the output-side guide portion 262, and the output-side bearing portion 214z, the bulging portion 210a2 is slid along the receiving portion 220d. Thereby, the output-side pulley 214, the output-side guide portion 262, and the output-side bearing portion 214z are axially supported in this order with respect to the output shaft of the drive portion 210. Further, a disk-shaped retaining member 290 having a larger diameter than the inner ring of the output-side bearing portion 214z is fixed to the end of the output shaft of the drive portion 210 inserted through the output-side bearing portion 214z by a screw 292, whereby the output shaft of the drive portion 210 is prevented from coming off with respect to the output-side bearing portion 214z.

[0054] In addition, the above-described incorporation work can be more easily performed if it is carried out with the belt 212 wound around the output-side pulley 214 and the driven-side pulley 216, because there is no problem of the belt 212 being difficult to wind due to the tension of the belt 212. Further, since the support portion 220, the drive portion 210, the belt 212, the output-side pulley 214, the second attachment body 202y, the second bearing portion 225, the driven-side pulley 216, the first bearing portion 202z, the driven-side bearing holding portion 202p, the output-side bearing portion 214z, the output-side bearing holding portion 214p, the output-side guide portion 262, and the driven-side guide portion 272 are unitized and integrally configured, it is easy to incorporate them into the lower case 42a of the cleaning body drive portion 48. Further, as shown in FIG. 10(a), a screw hole 222e is provided on the receiving portion 220d side of the support portion 220 for screwing the end portion of the drive machine main body 210a1. Note that the second attachment body 202y preferably has a flat contact surface facing the support portion 220. Thereby, the rotational stability of the driven-side pulley 216 can be improved. Note that the output-side guide portion 260 may be a separate member (separate body) with respect to the output-side pulley 214, and the driven-side guide portion 270 may be a separate member (separate body) with respect to the driven-side pulley 216.

[0055] ≪Configuration of the vacuum cleaner support device 120≫ As shown in FIGS. 1, 12 to 14, the vacuum cleaner support device 120 supports the electric vacuum cleaner 1 in a state where the vacuum cleaner main body 10 and the cleaning tool 40 are connected via the pipe portion 30. As shown in FIG. 13, the vacuum cleaner support device 120 has a mounting portion 130 and a support column portion 140.

[0056] The mounting portion 130 is a portion that serves as a pedestal for mounting the cleaning tool 40, and has a mounting surface that is inclined so as to be lower toward the front side from the support column portion 140 described later. Further, the mounting portion 130 has a stopper 132 on the front side. The stopper 132 is formed so as to protrude upward from the top surface side of the mounting portion 130. Further, the stopper 132 is formed so as to extend in the width direction of the mounting portion 130. Therefore, the stopper 132 can position the cleaning tool 40 disposed on the top surface of the mounting portion 130 so as not to move beyond the stopper 132 to the front side.

[0057] The support part 140 is a columnar part that stands vertically in the vertical direction on the back side of the placement part 130 (the side opposite to the stopper 132). The support part 140 is a part that engages with and supports the pipe part 30 connected to the cleaning tool 40 arranged on the placement part 130. Specifically, the support part 140 can support the pipe part 30 by engaging the receiving part 32 provided on the pipe part 30 with the engaging part 142 provided on the upper end side.

[0058] Specifically, the receiving part 32 is a part provided so as to bulge on the back side of the pipe part 30. The receiving part 32 is supposed to be able to engage with the support part 140 of the vacuum cleaner support device 120 to form an engaging structure. The receiving part 32 is hollow and has an opening 32a that opens toward one side in the pipe axis direction (the connection side with the cleaning tool 40) and the back side. On the other hand, the engaging part 142 of the support part 140 is formed with a recess so that it can be inserted into the opening 32a of the receiving part 32 of the pipe part 30 from above. Further, a protruding part 144 is provided inside the recess of the engaging part 142 of the support part 140. By inserting the receiving part 32 into the engaging part 142 from above downward, an engaging structure by the receiving part 32 and the engaging part 142 can be formed. Thereby, the support part 140 can support the pipe part 30 in an engaged state. In this embodiment, the configuration in which the receiving part 32 is provided on the pipe part 30 has been described as an example. However, it is sufficient that the pipe part 30 has an engaging structure that hooks the pipe part 30 from above the engaging structure of the support part 140. For example, a hook extending downward (on the cleaning tool 40 side) may be provided on the pipe part 30, and the hook may be inserted into the recess of the engaging part 142 of the support part 140.

[0059] Further, the support part 140 has a first support component part 150, a second support component part 152, and a third support component part 154. The first support component part 150, the second support component part 152, and the third support component part 154 are respectively arranged separately in the vertical direction of the support part 140.

[0060] Specifically, the first support component 150 is a part that forms the upper region in the vertical direction of the support part 140. The engaging part 142 described above is provided on the first support component 150. Therefore, the first support component 150 functions as a part that forms an engaging structure with the pipe part 30.

[0061] The second support component 152 is a part that forms the lower region (on the side of the mounting part 130) of the support part 140. The front surface 152a of the second support component 152 is located on the rear side in the front-rear direction with respect to the front surface 152a of the first support component 150 and the surface of the first support component.

[0062] The third support component 154 is a part located between the first support component 150 and the second support component 152 in the vertical direction. The third support component 154 has a concave part 156 on the front surface 154a side. The concave part 156 is formed to be concave rearward with respect to the front surface 150a of the first support component 150 and the front surface 152a of the second support component 152.

[0063] Specifically, the front surface 154a of the third support component 154 is supposed to have three surfaces: the first connection surface 154b, the second connection surface 154c, and the flat surface 154d. The first connection surface 154b is composed of a curved surface, a flexed surface, or an inclined surface (a curved surface in this embodiment) formed to continue with the front surface 150a of the first support component 150. Also, the second connection surface 154c is composed of a curved surface, a flexed surface, or an inclined surface (a curved surface in this embodiment) formed to continue with the front surface 152a of the second support component 152. The flat surface 154d is a flat surface provided between the first connection surface 154b and the second connection surface 154c in the vertical direction. The first connection surface 154b and the second connection surface 154c can be curved with the same curvature, but in this embodiment, the curvature of the second connection surface 154c is smaller than the curvature of the first connection surface 154b. Thereby, it is possible to suppress the rear end 47 of the cleaning tool 40 from getting caught on the second connection surface 154c and mount the cleaning tool 40 on the mounting surface of the mounting part 130.

[0064] ≪Operation Control by Control Unit 90≫ The control unit 90 can perform operation control (duty control) of the electric blower 70 based on the duty ratio. The control unit 90 can set the duty ratio according to the communication state between the cleaner main body 10 and the cleaning tool 40. Specifically, the control unit 90 can set the duty ratio according to whether the cleaner main body 10 and the cleaning tool 40 are directly or indirectly connected. Here, grasping the connection state between the cleaner main body 10 and the cleaning tool 40 by the control unit 90 can be achieved by making the direct or indirect connection between the cleaner main body 10 and the cleaning tool 40 electrically detectable, allowing the user to set it appropriately by various switches, providing a physically on-off switch when directly connecting the cleaner main body 10 and the cleaning tool 40 or indirectly connecting them via the pipe part 30, providing sensors for detecting the connection, etc.

[0065] The control unit 90 sets the duty ratio (duty ratio D1 during communication) set on the condition that the cleaner main body 10 and the cleaning tool 40 are in a communication state to be higher than the duty ratio (duty ratio D2 during non-communication) set on the condition that they are in a non-communication state (D1 > D2). Thereby, when the cleaner main body 10 and the cleaning tool 40 are in a communication state and a high suction force is required, the output of the electric blower 70 can be increased.

[0066] Also, when the electric vacuum cleaner 1 can select a plurality of operation modes with different suction forces, it is preferable that the control unit 90 performs output control of the electric blower 70 so that an appropriate suction force can be exerted according to the operation mode. Specifically, for example, as the operation modes of the electric vacuum cleaner 1, there can be a plurality of operation modes such as an operation mode (standard mode) for cleaning with a standard suction force, an operation mode (save mode) for suppressing power consumption by reducing the suction force compared to the standard mode, and an operation mode (turbo mode) for cleaning with a higher suction force than the standard mode, and it can be made operable to select and operate. In this case, the control unit 90 performs output control of the electric blower 70 so that an appropriate suction force can be exerted according to the selected operation mode.

[0067] Here, as described above, when enabling operation in a plurality of operation modes with different suction forces, when selecting the first operation mode and when selecting a second operation mode with a higher suction force than this, while maintaining the magnitude relationship of the suction forces, it is preferable to set the duty ratio according to the communication state between the cleaner main body 10 and the cleaning tool 40. Specifically, for example, when comparing the case of operating in the save mode described above and the case of operating in the standard mode, it is preferable to control such that the duty ratio D1 during communication when operating in the standard mode is larger than the duty ratio D1 during communication when operating in the save mode. Also, it is preferable to control such that the duty ratio D2 during non-communication when operating in the standard mode is larger than the duty ratio D2 during non-communication when operating in the save mode. Similarly, when comparing the case of operating in the standard mode and the case of operating in the turbo mode, it is preferable to control such that the duty ratio D1 during communication when operating in the turbo mode is larger than the duty ratio D1 during communication when operating in the standard mode, and the duty ratio D2 during non-communication when operating in the turbo mode is larger than the duty ratio D2 during non-communication when operating in the standard mode.

[0068] The control unit 90 preferably includes an operation unit for setting the operation mode of the vacuum cleaner 1. Specifically, it is preferably configured to include a first operation unit 92 for setting the first operation mode and a second operation unit 94 for setting the second operation mode.

[0069] [Regarding the effects obtained by the vacuum cleaner 1, the cleaning tool 40, the cleaner support device 120, and the vacuum cleaner system S, etc.] Hereinafter, the effects obtained by the above-described vacuum cleaner 1, cleaning tool 40, and vacuum cleaner system S, etc. will be described for each aspect of the present invention.

[0070] [Regarding the vacuum cleaner 1 according to the first aspect of the present invention] Conventionally, as disclosed in Japanese Utility Model Publication No. 59-27063, there has been provided a vacuum cleaner in which a cleaner main body having a detachable suction port body with a front end opening and having a fan motor for generating a suction force inside is provided with a rod-shaped handle having a built-in battery.

[0071] In the above-described conventional vacuum cleaner, the handle extends straight backward from the cleaner main body. Therefore, when the front end opening or the suction port body is applied to the floor surface, the conventional vacuum cleaner has a problem that it is difficult to grip the handle and the operability is low.

[0072] Therefore, an object of the present invention is to realize a vacuum cleaner that is easy to grip and has high operability.

[0073] (1-1) A vacuum cleaner 1 provided to solve the above-described problems includes a main body portion 12 having an electric blower 70 for generating a suction force inside and having a suction port 14 on the lower side in the vertical direction, a dust collection portion 20 in which dust is collected, and a handle portion 100 provided on the upper side in the vertical direction of the main body portion 12. The handle portion 100 is in a rod shape bent at a bending position 102 provided midway, extends from the front side in the front-rear direction orthogonal to the vertical direction of the main body portion 12, and extends from the bending position 102 toward the rear side of the main body portion 12.

[0074] In the vacuum cleaner 1, a rod-shaped handle portion 100 provided on the upper side of the main body portion 12 extends from the front side of the main body portion 12, bends at the bending position 102, and extends toward the rear side of the main body portion 12. Therefore, in the vacuum cleaner 1, it is easy for the user to grip the handle portion 100 when performing cleaning, and the operability is high.

[0075] (1-2) In the above-described vacuum cleaner 1, an operation portion 106 for controlling the operation of the electric blower 70 is arranged on the side of the handle portion 100 connected to the main body portion 12.

[0076] As a result, the vacuum cleaner 1 makes it easier for the user to change the position where the user holds the handle portion 100 for the operation of the operation unit 106 and the operation of moving the vacuum cleaner 1 while holding the handle portion 100. Further, by adopting the configuration as in (1-2), the vacuum cleaner 1 can suppress accidental operation of the operation unit 106 when moving the vacuum cleaner 1 while holding the handle portion 100.

[0077] (1-3) In the vacuum cleaner 1 described above in (1-2), the handle portion 100 has a flat surface 104 that extends along the vertical direction, and the operation unit 106 is arranged on the flat surface 104.

[0078] By adopting the configuration as in (1-3), the vacuum cleaner 1 becomes even easier to operate the operation unit 106.

[0079] (1-4) In the vacuum cleaner 1 described above in (1-2), the handle portion 100 has a front surface portion 100b that constitutes the front surface in the front-rear direction and a rear surface portion 100a that constitutes the rear surface in the front-rear direction. The rear surface portion 100a has a rear surface bent portion 102a bent at the bending position 102, and the front surface portion 100b has a flat surface 104 at a position facing the rear surface bent portion 102a in the front-rear direction, and the operation unit 106 is provided on the flat surface 104.

[0080] By adopting the configuration as in the above (1-4), the vacuum cleaner 1 makes it easier for the user to change the position where the user holds the handle portion 100 when operating the operation unit 106 and when moving the vacuum cleaner 1 while holding the handle portion 100. Further, by adopting the configuration as in (1-4), the vacuum cleaner 1 can more reliably suppress accidental operation of the operation unit 106 when moving the vacuum cleaner 1 while holding the handle portion 100.

[0081] (1-5) In the vacuum cleaner 1 described above in (1-1) to (1-4), the main body portion 12 has a battery 80 on the rear side in the front-rear direction.

[0082] By configuring the vacuum cleaner 1 as in (1-5), for example, when the battery 80 is provided inside the handle portion 100, the battery 80, which is a heavy object, will be arranged on the lower side compared to such a configuration. Therefore, by configuring the vacuum cleaner 1 as in (1-5), the center of gravity can be set lower. As a result, the vacuum cleaner 1 is easy to operate when moving it for cleaning.

[0083] (1-6) The vacuum cleaner 1 described above in (1-5) is characterized in that, when viewed from the vertical direction, the battery 80 and the handle portion 100 overlap at least partially.

[0084] By configuring the vacuum cleaner 1 as in (1-6) above, it can be gripped at a position above the center of gravity position of the battery 80, which is a heavy object. As a result, the vacuum cleaner 1 is easy to operate when moving it for cleaning.

[0085] (1-7) In the vacuum cleaner 1 described above in (1-5) or (1-6), the battery 80 is detachably accommodated in a battery accommodation portion 24 provided in the main body portion 12. The battery accommodation portion 24 has an opening portion 24a that is openable to insert the battery 80 at a position facing the handle portion 100 in the vertical direction. The opening portion 24a has an opening surface 24c that inclines away from the handle portion 100 as it goes from the front side to the rear side in the front-rear direction.

[0086] By configuring the vacuum cleaner 1 as in (1-7) above, the work of attaching or detaching the battery 80 to / from the battery accommodation portion 24 becomes easy.

[0087] (1-8) The vacuum cleaner 1 described above in (1-1) to (1-7) is characterized in that one end of the handle portion 100 on the side connected to the main body portion 12 overlaps the electric blower 70 when viewed from the vertical direction.

[0088] By configuring the vacuum cleaner 1 as described in (1-8) above, it can be gripped at a position above the center of gravity of the heavy electric blower 70. As a result, the vacuum cleaner 1 is easy to maneuver when moving it for cleaning.

[0089] (1-9) One end of the handle portion 100 of the vacuum cleaner 1 connected to the main body portion 12 is located in front of the central axis of the electric blower 70 in the front-rear direction, as described in (1-1) to (1-8) above.

[0090] By configuring the vacuum cleaner 1 as described in (1-9) above, it can be gripped directly above the heavy electric blower 70. As a result, the vacuum cleaner 1 is easy to maneuver when moving it for cleaning.

[0091] [Regarding the cleaning tool 40 according to the second aspect of the present invention] Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 2010-51711, in the head of a vacuum cleaner having a rotating body with a plurality of brushes, a motor for rotating the rotating body, and a belt for transmitting the rotation of the motor to the rotating body, a belt is wound around a roller provided on the shaft of the motor and a rotating support.

[0092] However, in the prior art as described above, there is a problem that the belt may come off from the roller or the rotating support.

[0093] Therefore, an object of the present invention is to realize a cleaning tool for a vacuum cleaner that makes it difficult for the belt to come off from the pulley.

[0094] (2-1) The cleaning tool 40 provided to solve the above-described problems includes an inlet opening 62 that serves as an inlet for dust, a rotary cleaning body 46 having a cleaning body 200, a drive unit 210 in which an output-side pulley 214 is provided on the rotation axis of a motor 210a, and a driven-side structure DS that transmits the power of the drive unit 210 to the rotary cleaning body 46. A belt 212 is wound around a driven-side pulley 216 provided in the driven-side structure DS and the output-side pulley 214. The driven-side structure DS has a circumferential portion around which the belt 212 is wound on the driven-side pulley 216, and has a guide portion 250 (driven-side guide portions 270, 272) that protrudes radially from the circumferential portion on at least one side in the axial direction of the driven-side pulley 216.

[0095] The cleaning tool 40 has a guide portion 250 (driven-side guide portions 270, 272) that protrudes radially from the circumferential portion on at least one side in the axial direction with respect to the driven-side pulley 216 provided in the driven-side structure DS. Further, the guide portion 250 is configured to protrude radially from the circumferential portion of the driven-side pulley 216. Therefore, in the cleaning tool 40, the belt 212 wound around the circumferential portion of the driven-side pulley 216 is difficult to come off.

[0096] (2-2) In the cleaning tool 40 described above, the guide portion 250 is characterized in that it is a separate member from the driven-side pulley 216.

[0097] With such a configuration, the cleaning tool 40 of the vacuum cleaner 1 according to the present embodiment can perform an operation of disposing the driven-side guide portion 272, which is a separate member, after the belt 212 is wound around the driven-side pulley 216. Further, when removing the belt 212 from the driven-side pulley 216, the cleaning tool 40 of the vacuum cleaner 1 according to the present embodiment can remove the belt 212 with the driven-side guide portion 272, which is a separate member, removed in the opposite manner to when the belt 212 is wound. Therefore, the cleaning tool 40 of the vacuum cleaner 1 according to the present embodiment can easily attach and detach the belt 212 to and from the driven-side pulley 216 while having a configuration in which a guide portion 250 that protrudes radially from the circumferential portion is provided on one side in the rotation axis direction with respect to the circumferential portion.

[0098] (2-3) In the cleaning tool 40 of (2-1) or (2-2) described above, the guide portion 250 is characterized in that it is supported by the shaft portion 202k on which the driven pulley 216 is supported.

[0099] By adopting such a configuration, the cleaning tool 40 of the vacuum cleaner 1 of the present embodiment can be configured such that the guide portion 250 (the driven guide portion 272 in the present embodiment) is arranged with respect to the driven pulley 216 in the axial direction of the shaft portion 202k to which the driven pulley 216 is fixed. As a result, the cleaning tool 40 of the vacuum cleaner 1 of the present embodiment can arrange the driven guide portion 272 with high positional accuracy with respect to the driven pulley 216. Therefore, the cleaning tool 40 of the vacuum cleaner 1 of the present embodiment can surely arrange the driven guide portion 272 at an appropriate position in order to prevent the belt 212 from coming off the pulley. When the driven guide portion 270 is a separate member from the driven pulley 216, the driven guide portion 270 may be fixed to the shaft portion 202k.

[0100] (2-4) In the cleaning tool 40 of (2-3) described above, the driven pulley 216 and the guide portion 250 are characterized in that they are prevented from coming off the shaft portion 202k.

[0101] By adopting the above-described configuration, the cleaning tool 40 is positioned so that the driven pulley 216 and the guide portion 250 do not move in the axial direction of the shaft portion 202k. Therefore, the cleaning tool 40 is less likely to be displaced in either the axial direction of the shaft portion 202k or the direction intersecting the axial direction of the driven pulley 216 and the guide portion 250, and the inclination of the driven pulley 216 is also less likely to occur. Therefore, the belt 212 is less likely to come off the driven pulley 216 of the cleaning tool 40.

[0102] (2-5) In the cleaning tool 40 of (2-3) or (2-4) described above, a retaining member 282 is fixed to the end portion of the shaft portion 202k on the guide portion 250 side with respect to the driven pulley 216.

[0103] By adopting the above-described configuration, the cleaning tool 40 can be positioned by the retaining member 282 so that the driven pulley 216 and the guide portion 250 do not move in the axial direction of the shaft portion 202k. Therefore, the cleaning tool 40 is less likely to be displaced in either the axial direction of the shaft portion 202k or the direction intersecting the axial direction, and the inclination of the driven pulley 216 is also less likely to occur. For this reason, the belt 212 is less likely to come off the driven pulley 216 in the cleaning tool 40.

[0104] (2-6) In the cleaning tool 40 described in (2-1) to (2-5) above, the driven-side structure DS has an engaging portion 202j that detachably engages with the axial end of the rotary cleaning body 46, and is characterized in that the engaging portion 202j, the driven pulley 216, and the guide portion 250 (driven-side guide portion 272) are arranged in this order.

[0105] By adopting the above-described configuration, the cleaning tool 40 can easily engage and disengage the rotary cleaning body 46. Further, by adopting the above-described configuration, the cleaning tool 40 can suppress the guide portion 250 (driven-side guide portion 272) from coming off on the opposite side via the driven pulley 216 from the engaging portion 202j where the engagement and disengagement of the rotary cleaning body 46 are performed.

[0106] (2-7) In the cleaning tool 40 described in (2-3) to (2-5) above, the driven-side structure DS is characterized by having a first bearing portion 202z arranged on the guide portion 250 side of the shaft portion 202k and a driven-side bearing holding portion 202p that supports the first bearing portion 202z, with reference to the driven pulley 216.

[0107] The cleaning tool 40 is configured such that the first bearing portion 202z for receiving the shaft portion 202k with the driven pulley 216 fixed thereto is held by the driven-side bearing holding portion 202p as a support structure for rotatably supporting the driven pulley 216. Thereby, the cleaning tool 40 can smoothly support the shaft portion 202k so as to be rotatable.

[0108] (2-8) In the cleaning tool 40 described above in (2-7), the driven-side structure DS has a second bearing portion 225 arranged on the side opposite to the guide portion 250 with respect to the driven-side pulley 216, includes a support portion 220 that supports the driven-side structure DS by the second bearing portion 225, and is characterized in that the driven-side pulley 216 and the guide portion 250 are arranged between the second bearing portion 225 and the first bearing portion 202z.

[0109] By having the above-described configuration, the cleaning tool 40 can support the shaft portion 202k so that no inclination occurs between the second bearing portion 225 and the first bearing portion 202z. Further, the cleaning tool 40 has the driven-side pulley 216 and the guide portion 250 between the second bearing portion 225 and the first bearing portion 202z. Therefore, the belt 212 is less likely to come off from the driven-side pulley 216.

[0110] [Regarding the cleaning tool 40 according to the third aspect of the present invention] Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 2010-51711, in the head of an electric vacuum cleaner having a rotating body having a plurality of brushes, a motor for rotating the rotating body, and a belt for transmitting the rotation of the motor to the rotating body, a head in which a belt is wound around a roller provided on the shaft of the motor and a rotating support is disclosed.

[0111] However, in the prior art as described above, since the brush bearing that rotatably supports the rotating support rotates with respect to the rotating shaft, dust is likely to adhere to the gap between the brush bearing and the rotating shaft, which may affect the rotation performance of the rotating body.

[0112] Therefore, an object of the present invention is to realize a cleaning tool for an electric vacuum cleaner capable of suppressing a decrease in the rotation performance of a rotating body.

[0113] (3-1) The cleaning tool 40 provided to solve the above problems includes an inlet opening 62 serving as an inlet for dust, a rotary cleaning body 46 having a cleaning body 200, a drive unit 210 provided with an output side pulley 214 on the rotation axis of a motor 210a, a driven side pulley 216 around which a belt 212 is wound together with the output side pulley 214, a first driven side bearing portion 202z composed of a ball bearing that receives a shaft portion 202k on which the driven side pulley 216 is supported, and a driven side bearing holding portion 202p that holds the first driven side bearing portion 202z.

[0114] As a support structure for rotatably supporting the driven side pulley 216, the cleaning tool 40 uses a held first driven side bearing portion 202z provided in the driven side bearing holding portion 202p for receiving the shaft portion 202k to which the driven side pulley 216 is fixed. Thereby, the cleaning tool 40 can reduce the possibility that the rotation performance of the cleaning body 200 deteriorates due to dust adhesion or the like in the support structure for rotatably supporting the cleaning body 200 more than the prior art.

[0115] (3-2) The above-described cleaning tool 40 includes an engaging portion 202j that detachably engages with an axial end portion of the rotary cleaning body 46, and is characterized in that the engaging portion 202j, the driven side pulley 216, and the first driven side bearing portion 202z are arranged in this order.

[0116] With the above-described configuration, the cleaning tool 40 can easily engage and disengage the rotary cleaning body 46 at the engaging portion 202j. Further, with the above-described configuration, since the first driven side bearing portion 202z is arranged on the opposite side of the engaging portion 202j where the rotary cleaning body 46 is engaged and disengaged via the driven side pulley 216, the cleaning tool 40 can reduce the possibility that the rotation performance of the cleaning body 200 deteriorates due to dust adhesion or the like to the first driven side bearing portion 202z more than the prior art.

[0117] (3-3) The cleaning tool 40 described in (3-1) or (3-2) above is characterized by having a second driven side bearing portion 225 that receives the shaft portion 202k and including a support portion 220 that supports the second driven side bearing portion 225.

[0118] Since the cleaning tool 40 has such a configuration, the second driven-side bearing portion 225 is supported by the support portion 220, and the inner ring of the second driven-side bearing portion 225 rotates together with the shaft portion 202k. Therefore, the cleaning tool 40 can reduce the possibility that the rotation performance of the cleaning body 200 deteriorates due to dust adhesion or the like in the support structure that rotatably supports the cleaning body 200 more than the prior art.

[0119] (3-4) The cleaning tool 40 described above in (3-1) to (3-3) is characterized in that it is prevented from coming off at the end of the shaft portion 202k on the first driven-side bearing portion 202z side with reference to the driven-side pulley 216.

[0120] By having the above-described configuration, the cleaning tool 40 is positioned so that the driven-side pulley 216 does not move toward the first driven-side bearing portion 202z along the axial direction of the shaft portion 202k. Therefore, the cleaning tool 40 is less likely to be displaced in either the axial direction of the shaft portion 202k or the direction intersecting the axial direction, and the inclination of the driven-side pulley 216 is also less likely to occur. Therefore, the belt 212 is less likely to come off from the driven-side pulley 216 of the cleaning tool 40 of the vacuum cleaner 1 of the present embodiment.

[0121] (3-5) The cleaning tool 40 described above in (3-1) to (3-4) includes an output-side bearing portion 214z that receives the rotation shaft of the motor 210a and an output-side bearing holding portion 214p that holds the output-side bearing portion 214z, and is characterized in that the driven-side bearing holding portion 202p and the output-side bearing holding portion 214p are integrally formed.

[0122] By having the above-described configuration, the cleaning tool 40 can integrally assemble the motor 210a, the output-side bearing portion 214z, and the output-side bearing holding portion 214p together with the driven-side bearing holding portion 202p.

[0123] [Regarding the cleaner support device 120 according to the fourth aspect of the present invention] Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 2021-107004, there is a vacuum cleaner support device that supports a vacuum cleaner to which a vacuum cleaner main body, an extension pipe, and a suction tool are connected. The support column portion of this vacuum cleaner support device is configured to support the vacuum cleaner by engaging with the extension pipe.

[0124] Here, in the prior art as described above, since the rear end of the suction tool may interfere with the front side of the support column portion, there has been a demand for a vacuum cleaner support device with a configuration that makes it easier to engage the extension pipe with the vacuum cleaner support device.

[0125] Therefore, an object of the present invention is to realize a vacuum cleaner support device and a vacuum cleaner set that can easily engage the pipe portion of the vacuum cleaner.

[0126] (4-1) The vacuum cleaner support device 120 provided to solve the above-described problems supports a vacuum cleaner 1 including a vacuum cleaner main body 10 having an electric blower 70, a cleaning tool 40 having a suction port 14 for sucking dust, and a pipe portion 30 connecting the vacuum cleaner main body 10 and the cleaning tool 40, with the vacuum cleaner main body 10, the pipe portion 30, and the cleaning tool 40 connected. The vacuum cleaner support device 120 includes a placement portion 130 for placing the cleaning tool 40, and a support column portion 140 erected on the placement portion 130 and engaging with the pipe portion 30. The support column portion 140 is located on the rear side with respect to the pipe portion 30, and includes a first support column configuration portion 150 forming an engagement structure with the pipe portion 30, a second support column configuration portion 152 forming the lower end side of the support column portion 140, and a third support column configuration portion 154 located between the first support column configuration portion 150 and the second support column configuration portion 152 in the vertical direction of the support column portion 140. The third support column configuration portion 154 is characterized in that it has a recess 156 formed on the front surface 154a so as to be concave rearward from the front surface 150a of the first support column configuration portion 150 and the front surface 152a of the second support column configuration portion 152.

[0127] The vacuum cleaner support device 120 is configured such that an engagement structure can be formed with the pipe portion 30 in the first support column component 150 that constitutes the support column portion 140, and a recess 156 is provided on the front surface 154a of the third support column component 154 provided between the second support column component 152 forming the lower end side of the support column portion 140 and the first support column component 150. Further, the front surface 154a of the third support column component 154 is formed in a concave shape so as to be recessed rearward from the front surface 150a of the first support column component 150 and the front surface 152a of the second support column component 152 in the recess 156. Therefore, when the vacuum cleaner support device 120 attempts to engage with the pipe portion 30 in the first support column component 150, the rear end 47 of the cleaning tool 40 is less likely to interfere with the support column portion 140 due to the presence of the recess 156. Accordingly, according to the vacuum cleaner support device 120, the user can easily perform the operation of engaging the pipe portion 30 in the first support column component 150.

[0128] (4-2) In the vacuum cleaner support device 120 described above, the support column portion 140 is characterized in that the front surface of the second support column component 152 is located rearward of the front surface of the first support column component 150.

[0129] With the vacuum cleaner support device 120 having the above-described configuration, when the cleaning tool 40 passes through the recess 156 of the third support column component 154 and reaches the second support column component 152 when engaging the pipe portion 30 in the first support column component 150, the cleaning tool 40 can smoothly push the cleaning tool 40 forward in the second support column component 152. Accordingly, according to the vacuum cleaner support device 120, the user can perform the operation of engaging the pipe portion 30 with the support column portion 140 even more smoothly.

[0130] (4-3) In the vacuum cleaner support device 120 of (4-1) or (4-2) described above, the front surface 154a of the third support column component 154 is characterized by having a first connection surface 154b that continues from the front surface 150a of the first support column component 150 and a second connection surface 154c that continues from the front surface 152a of the second support column component 152.

[0131] In the process of engaging the pipe portion 30 with the support column portion 140, the cleaning tool 40 is guided by the first connection surface 154b and the second connection surface 154c and moves smoothly. Therefore, according to the vacuum cleaner support device 120, the operation of engaging the pipe portion 30 with the support column portion 140 can be performed more smoothly.

[0132] (4-4) In the vacuum cleaner support device 120 described in (4-1) to (4-3) above, the recess 156 is characterized in that it has a flat surface 104 between the first connection surface 154b and the second connection surface 154c.

[0133] With the vacuum cleaner support device 120 configured as described above, in the process of engaging the pipe portion 30 with the support column portion 140, the cleaning tool 40 guided by the first connection surface 154b can be smoothly moved downward along the flat surface 104 and guided toward the second connection surface 154c. Therefore, according to the vacuum cleaner support device 120, the user can perform the operation of engaging the pipe portion 30 with the support column portion 140 more smoothly.

[0134] (4-5) The vacuum cleaner support device 120 described in (4-1) to (4-4) above is characterized in that the second connection surface 154c is a curved surface with a smaller curvature than the first connection surface 154b.

[0135] With the vacuum cleaner support device 120 configured as described above, in the process of engaging the pipe portion 30 with the support column portion 140, in the portion where the first connection surface 154b is provided, while suppressing the cleaning tool 40 from getting in the way of the support column portion 140, when the cleaning tool 40 passes through the portion where the second connection surface 154c is provided, the cleaning tool 40 is smoothly urged forward and the cleaning tool 40 can be placed. Therefore, according to the vacuum cleaner support device 120, the user can perform the operation of engaging the pipe portion 30 with the support column portion 140 smoothly.

[0136] (4-6) The electric vacuum cleaner system S described above is characterized by including the vacuum cleaner support device 120 described in any one of (4-1) to (4-5) above and an electric vacuum cleaner 1.

[0137] Since the vacuum cleaner system S includes the cleaner support device 120, the user can easily engage the pipe portion 30 at the first support component 150.

[0138] [Regarding the vacuum cleaner 1 according to the fifth aspect of the present invention] Conventionally, like the vacuum cleaner disclosed in Japanese Patent Application Laid-Open No. 2011-10743, a cleaner main body housing an electric blower, control means for selectively operating the electric blower in any of a plurality of operation modes with different inputs, non-volatile storage means capable of storing the operation mode of the electric blower, and floor cleaning determination means for determining whether the floor is being cleaned are provided. When the floor cleaning determination means determines that the floor is being cleaned after the electric blower restarts driving, the control means drives the electric blower in the operation mode stored in the storage means when the electric blower was previously cleaning the floor. In this vacuum cleaner, when the floor cleaning determination means determines that the floor is being cleaned after the electric blower restarts driving, the control means drives the electric blower in the operation mode stored in the storage means when the electric blower was previously cleaning the floor, so that when the floor is being cleaned, the operation of driving the electric blower in the operation mode stored when the floor was previously cleaned without the operator operating the operation mode is performed.

[0139] However, in the prior art, it is necessary to pre-store a plurality of normal operation modes that can be operated when the floor cleaning determination means determines that the floor is being cleaned, and a plurality of special operation modes that can be operated when the floor cleaning determination means determines that the floor is not being cleaned, and it is necessary to select from many modes.

[0140] Therefore, an object of the present invention is to provide a vacuum cleaner capable of easily changing the suction force of an electric blower.

[0141] (5-1) The vacuum cleaner 1 provided to solve the above-described problems includes a cleaner main body 10 having an electric blower 70 and a control unit 90 that controls the operation of the electric blower 70, and a cleaning tool 40 that takes in dust. The control unit 90 can control the operation of the electric blower 70 based on a duty ratio, and the duty ratio set on the condition that the cleaner main body 10 and the cleaning tool 40 are in a communicating state is higher than the duty ratio set on the condition that the cleaner main body 10 and the cleaning tool 40 are in a non-communicating state.

[0142] By having the above-described configuration, the vacuum cleaner 1 can easily change the suction force of the electric blower, for example, as compared with a method of changing the suction force of the electric blower by storing a plurality of operation modes separately depending on whether the floor is being cleaned or not as in the prior art.

[0143] (5-2) The vacuum cleaner 1 provided to solve the above-described problems includes a cleaner main body 10 having an electric blower 70 and a control unit 90 that controls the operation of the electric blower 70, and a cleaning tool 40 that takes in dust. The control unit 90 makes the duty ratio set on the condition that the cleaner main body 10 and the cleaning tool 40 are directly or indirectly connected higher than the duty ratio set on the condition that the direct or indirect connection between the cleaner main body 10 and the cleaning tool 40 is released.

[0144] By having the above-described configuration, the vacuum cleaner 1 can easily change the suction force of the electric blower, for example, as compared with a method of changing the suction force of the electric blower by storing a plurality of operation modes separately depending on whether the floor is being cleaned or not as in the prior art.

[0145] (5-3) In the vacuum cleaner 1 of (5-1) or (5-2) described above, the control unit 90 is configured to set a duty ratio that is higher than the duty set on the condition that the electrical connection between the cleaner main body 10 and the cleaning tool 40 is not detected, provided that the electrical connection between the cleaner main body 10 and the cleaning tool 40 is detected.

[0146] By adopting the above-described configuration, the vacuum cleaner 1 can easily change the suction force of the electric blower because it changes the duty ratio according to the electrical connection state between the cleaner main body 10 and the cleaning tool 40.

[0147] (5-4) The vacuum cleaner 1 described above in (5-1) to (5-3) is characterized by including a battery 80 that supplies power to the electric blower 70.

[0148] By adopting the above-described configuration, the vacuum cleaner 1 can drive the electric blower 70 with an appropriate output according to the connection state between the cleaner main body 10 and the cleaning tool 40, so that the power consumption associated with the driving of the electric blower 70 can be optimized. Therefore, the vacuum cleaner 1 is suitable when the electric blower 70 is driven by the battery 80 as described in (5-4) above.

[0149] (5-5) The vacuum cleaner 1 described above in (5-1) to (5-4) can selectively have a first operation mode and a second operation mode with a greater suction force than the first operation mode. In each of the first operation mode and the second operation mode, the suction force of each mode is changed while maintaining the relationship that the second operation mode has a greater suction force than the first operation mode by changing the duty ratio.

[0150] By adopting the above-described configuration, the vacuum cleaner 1 can drive the electric blower 70 with an appropriate output according to the connection state between the cleaner main body 10 and the cleaning tool 40 while having two or more operation modes with different suction forces. Therefore, the vacuum cleaner 1 does not need to further define operation modes with different outputs according to the connection state between the cleaner main body 10 and the cleaning tool 40 for each of the two or more operation modes with different suction forces, and thus the convenience for the user can be improved and the control configuration can be simplified accordingly.

[0151] (5-6) The above-described vacuum cleaner 1 of (5-5) is characterized by including a first operation unit 92 for setting a first operation mode and a second operation unit 94 for setting a second operation mode.

[0152] By adopting the above-described configuration, the vacuum cleaner 1 allows the user to easily select whether to operate in either the first operation mode or the second operation mode.

[0153] The present invention is not limited to the configuration described in the above-described embodiments, and can be appropriately modified in design without departing from the scope of the technical idea of the present invention. The constituent elements of the above-described embodiments and modification examples may be arbitrarily selected and combined. Also, any constituent element of each of the above-described embodiments and modification examples may be arbitrarily combined with any constituent element described in the means for solving the invention, the form for implementing the invention, etc., or a constituent element embodying any constituent element described in the means for solving the invention, the form for implementing the invention, etc. The applicant has the intention to obtain rights in the present application or a divisional application based on the present application.

Industrial Applicability

[0154] The present invention can be preferably used in vacuum cleaners in general.

Explanation of Reference Numerals

[0155] 1: Vacuum cleaner 10: Cleaner main body 12: Main body part 14: Suction port 20: Dust collection part 24: Battery housing part 24a: Opening 24c: Opening surface 30: Pipe part 40: Cleaning tool 46: Rotating cleaning body 62: Inlet opening 70: Electric blower 80: Battery 90: Control part 92: First operation part 94: Second operation part 100: Handle part 100a: Rear part 100b: Front part 102: Bending position 102a: Rear bending part 104: Flat surface 106: Operation part 120: Vacuum cleaner support device 130: Placing part 140: Support column part 150: First support column component part 150a: Front 152: Second support column component part 152a: Front 154: Third support column component part 154a: Front 154b: First connection surface 154c: Second connection surface 156: Concave part 200: Cleaning body 202j: Engaging part 202k: Shaft part 202p: Driven side bearing holding part 202z: First bearing part (first driven side bearing part) 210: Driving part 210a: Motor 212: Belt 214: Output side pulley 214p: Output side bearing holding part 214z: Output side bearing part 216: Driven pulley 220: Support part 225: Second bearing part (second driven-side bearing part) 250: Guide part 270: Driven-side guide part 272: Driven-side guide part 282: Retaining member DS: Driven-side structure S: Vacuum cleaner system

Claims

1. A main body having an electric blower that generates suction force inside, and having a suction port on the lower side in the vertical direction, A dust collection part where dust is collected, A handle part provided on the upper side in the vertical direction of the main body part, Comprising, The handle part, Is a rod-shaped one bent at a bent position provided in the middle, It extends from the front side in the front-rear direction orthogonal to the vertical direction of the main body part, and extends from the bent position toward the rear side of the main body part, The main body part has a battery on the rear side in the front-rear direction than the electric blower, The battery is detachably accommodated in the vertical direction with respect to a battery accommodation part provided in the main body part, The battery accommodation part has an opening through which the battery can be inserted within the top surface of the vacuum cleaner main body in the vertical direction, and at a position facing the handle part in the vertical direction, The battery accommodated in the battery accommodation part overlaps with the portion on the free end side of the handle part when viewed in the vertical direction, The opening surface of the opening is formed substantially horizontally in the front-rear direction, or is inclined so as to be away from the handle part as it goes from the front side to the rear side in the front-rear direction. A vacuum cleaner characterized by this.

2. An operation part for controlling the operation of the electric blower is arranged on the side of the handle part connected to the main body part. The vacuum cleaner according to claim 1, characterized by this.

3. The handle part has a flat surface that expands along the vertical direction, The operation part is arranged on the flat surface. The vacuum cleaner according to claim 2, characterized by this.

4. The handle part has a front part that constitutes the front surface in the front-rear direction and a rear part that constitutes the rear surface in the front-rear direction, The rear part has a rear surface bent part bent at the bent position, The front part has a flat surface at a position facing the rear surface bent part in the front-rear direction, and the operation part is provided on the flat surface. The vacuum cleaner according to claim 2, characterized by this.

5. When viewed from the vertical direction, the battery and the handle part overlap at least partially. The vacuum cleaner according to claim 1, characterized by this.

6. The electric vacuum cleaner according to any one of claims 1 to 4, wherein one end of the handle portion on the side connected to the main body portion overlaps the electric blower when viewed from the vertical direction.

7. The electric vacuum cleaner according to any one of claims 1 to 4, wherein one end of the handle portion on the side connected to the main body portion is located in front of the central axis of the electric blower in the front-rear direction.

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