Cleaner

Abstract

To suppress noise generated by a cleaner.SOLUTION: A cleaner includes a body housing, a drive unit including a blower fan and a motor rotating the blower fan and generating a suction force to a suction port communicating with an inside of the body housing, and a first support member which is fitted to at least a part of the drive unit and has a body support part supported by the body housing. At least a part of an outer peripheral surface of the body support part is arc.SELECTED DRAWING: Figure 19

Description

Technical Field

[0001] The technology disclosed in this specification relates to a cleaner.

Background Art

[0002] In the technical field related to cleaners, an electric vacuum cleaner as disclosed in Patent Document 1 is known.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When noise is generated from the cleaner, it gives discomfort to the user of the cleaner and the people around.

[0005] The technology disclosed in this specification aims to suppress the noise generated from the cleaner.

Means for Solving the Problems

[0006] This specification discloses a cleaner. The cleaner may include a main body housing, a blower fan, and a motor for rotating the blower fan, a drive unit that generates a suction force at a suction port leading to the inside of the main body housing, and a first support member having a main body support portion that is mounted on at least a part of the drive unit and supported by the main body housing. At least a part of the outer peripheral surface of the main body support portion may be arc-shaped.

Effects of the Invention

[0007] According to the technology disclosed in this specification, the noise generated from the cleaner is suppressed.

Brief Description of the Drawings

[0008]

Figure 1

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DETAILED DESCRIPTION OF THE INVENTION

[0009] In one or more embodiments, the cleaner may include a main body housing, a blower fan, and a motor that rotates the blower fan, a drive unit that generates a suction force at a suction port that communicates with the inside of the main body housing, and a first support member that has a main body support portion mounted on at least a part of the drive unit and supported by the main body housing. At least a part of the outer peripheral surface of the main body support portion may be arc-shaped.

[0010] In the above configuration, since the main body support portion has a shape that is easily bent, vibration generated by the drive unit is suppressed from being transmitted to the main body housing. Therefore, noise generated from the cleaner is suppressed.

[0011] In one or more embodiments, the main body support portion may have an opening.

[0012] In the above configuration, since the opening makes the main body support portion more flexible, vibration generated by the drive unit is suppressed from being transmitted to the main body housing. Therefore, noise generated from the cleaner is suppressed.

[0013] In one or more embodiments, the main body support portion may be oval. The main body support portion may have a holding rib provided at the central portion of the outer peripheral surface of the main body support portion in the longitudinal direction of the main body support portion. The holding rib may be held by the main body housing.

[0014] In the above configuration, since the contact area between the main body support portion and the main body housing becomes small, vibration generated by the drive unit is suppressed from being transmitted to the main body housing. Therefore, noise generated from the cleaner is suppressed.

[0015] In one or more embodiments, the drive unit may be disposed in the motor chamber of the main body housing. The cleaner may include a motor chamber cover that covers the motor chamber. The holding rib may be sandwiched between the main body housing and the motor chamber cover.

[0016] In the above configuration, the main body support portion is fixed to the main body housing and the motor chamber cover. Since the contact area between the main body support portion and each of the main body housing and the motor chamber cover becomes small, vibration generated by the drive unit is suppressed from being transmitted to the main body housing and the motor chamber cover. Therefore, noise generated from the cleaner is suppressed.

[0017] In one or more embodiments, the main body support portion may be oval. The main body support portion may have a reinforcing rib provided in the opening in the longitudinal direction of the main body support portion.

[0018] In the above configuration, excessive deflection of the main body support portion is suppressed.

[0019] In one or more embodiments, the first support member may have a drive unit support portion that supports the drive unit.

[0020] In the above configuration, the drive unit is stably supported by the drive unit support portion of the first support member.

[0021] In one or more embodiments, the main body support portion and the drive unit support portion may be disposed on each of one side and the other side of the rotation axis of the motor.

[0022] In the above configuration, the first support member is stably supported by the main body housing via a pair of main body support portions, and the drive unit can be stably supported by the pair of drive unit support portions.

[0023] In one or more embodiments, the first support member may have a connecting portion that connects the drive unit support portion on one side and the drive unit support portion on the other side.

[0024] In the above configuration, the connecting portion integrates the pair of drive unit support portions and the pair of main body support portions.

[0025] In one or more embodiments, the drive unit may have a cooling fan that cools the motor. The air flowing out from the cooling fan may be discharged to the outside of the main body housing through the opening.

[0026] In the above configuration, the hot air that flows out from the cooling fan and contacts the motor passes through the opening of the main body support portion and then is discharged to the outside of the main body housing without staying inside the main body housing.

[0027] In one or more embodiments, the cleaner may include a second support member that is attached to at least a part of the drive unit and supported by the main body housing.

[0028] In the above configuration, the drive unit is supported by the main body housing via the first support member and the second support member. The first support member and the second support member suppress the transmission of vibrations generated by the drive unit to the main body housing. Therefore, the noise generated from the cleaner is suppressed.

[0029] In one or more embodiments, the second support member may have at least one support rib provided on the outer peripheral surface of the second support member.

[0030] In the above configuration, since the contact area between the second support member and the main body housing is reduced, the transmission of vibrations generated by the drive unit to the main body housing is suppressed. Therefore, the noise generated from the cleaner is suppressed.

[0031] In one or more embodiments, the support rib may extend in a direction parallel to the rotation axis of the motor. The main body housing may have an arc rib that supports the support rib. The arc rib may extend in a direction orthogonal to the support rib.

[0032] In the above configuration, since the contact area between the second support member and the main body housing is further reduced, the transmission of vibrations generated by the drive unit to the main body housing is suppressed. Therefore, the noise generated from the cleaner is suppressed.

[0033] Hereinafter, embodiments according to the present disclosure will be described with reference to the drawings, but the present disclosure is not limited to the embodiments. The components of the embodiments described below can be combined as appropriate. Also, some components may not be used.

[0034] In the embodiments, the terms "left", "right", "front", "rear", "upper", and "lower" are used to describe the positional relationships of the respective parts. These terms indicate the relative position or direction with respect to the center of the cleaner 1.

[0035] [Cleaner] FIG. 1 is a perspective view from the left front showing the cleaner 1 according to the embodiment. FIG. 2 is a perspective view from the right rear showing the cleaner 1 according to the embodiment. FIG. 3 is a front view showing the cleaner 1 according to the embodiment. FIG. 4 is a top view showing the cleaner 1 according to the embodiment. FIG. 5 is a cross-sectional view showing the cleaner 1 according to the embodiment, corresponding to the sectional view taken along line A-A in FIG. 3 as viewed in the arrow direction. FIG. 6 is a cross-sectional view showing the cleaner 1 according to the embodiment, corresponding to the sectional view taken along line B-B in FIG. 3 as viewed in the arrow direction. FIG. 7 is a cross-sectional view showing the cleaner 1 according to the embodiment, corresponding to the sectional view taken along line C-C in FIG. 4 as viewed in the arrow direction.

[0036] The cleaner 1 includes a main body portion 2, a head portion 3 connected to the lower end portion of the main body portion 2, a connecting pipe 4 connecting the main body portion 2 and the head portion 3, and a handle portion 5 provided on the upper portion of the main body portion 2.

[0037] In the embodiment, the cleaner 1 is an upright cleaner. The upright cleaner refers to a cleaner in which the main body portion 2 can stand upright with respect to the head portion 3. The lower end portion of the main body portion 2 is rotatably connected to the head portion 3. The rotation axis of the main body portion 2 extends in the left-right direction. The main body portion 2 can rotate so as to change between a state of standing upright with respect to the head portion 3 and a tilted state. A foot lever 6 is provided between the main body portion 2 and the head portion 3. The user can switch between a state where the main body portion 2 and the head portion 3 are fixed and a state where the fixation is released by operating the foot lever 6.

[0038] The main body portion 2 has a main body housing 20, a collection chamber cover 21, a motor chamber cover 22, a controller 14, a battery mounting portion 9, a drive unit 40, a first support member 60, and a second support member 80. The main body housing 20 is long in the vertical direction. Each of the collection chamber cover 21 and the motor chamber cover 22 is mounted on the front portion of the main body housing 20. The collection chamber cover 21 is disposed above the motor chamber cover 22. The motor chamber cover 22 has a first exhaust port 12 and a second exhaust port 13. The main body housing 20 has a second exhaust port 13.

[0039] The main body housing 20 has a battery chamber 23 where the battery mounting portion 9 is disposed, a collection chamber 24 where the dust bag 11 is disposed, and a motor chamber 25 where the drive unit 40 is disposed.

[0040] The battery chamber 23 is provided at the lower part of the main body housing 20. An opening is provided in the left part of the battery chamber 23. The battery pack 10 is mounted on the battery mounting portion 9. The battery pack 10 is the power source of the cleaner 1.

[0041] The collection chamber 24 is disposed above the motor chamber 25. The collection chamber cover 21 is disposed to cover the opening provided at the front part of the collection chamber 24. The motor chamber cover 22 is disposed to cover the opening provided at the front part of the motor chamber 25. The collection chamber 24 is defined by the main body housing 20 and the collection chamber cover 21. The motor chamber 25 is defined by the main body housing 20 and the motor chamber cover 22.

[0042] The collection chamber cover 21 opens and closes the opening at the front part of the collection chamber 24. Claw portions are provided at the lower end portion of the collection chamber cover 21. A recess is provided in the main body housing 20 below the opening of the collection chamber 24. The claw portions of the collection chamber cover 21 are inserted into the recess of the main body housing 20. A latch mechanism 20A is provided in the main body housing 20 above the opening of the collection chamber 24. The latch mechanism 20A fixes the upper part of the collection chamber cover 21 and the main body housing 20. The collection chamber cover 21 has a latch lever 21A operated by the user. The latch lever 21A is provided at the front part of the collection chamber cover 21. When the user operates the latch lever 21A to move forward, the fixing of the main body housing 20 and the collection chamber cover 21 by the latch mechanism 20A is released. Thereby, the opening at the front part of the collection chamber 24 is opened.

[0043] FIG. 8 is a perspective view from the left front showing a part of the main body housing 20 according to the embodiment. As shown in FIGS. 7 and 8, the main body 2 includes a flow path 26 connecting the collection chamber 24 and the motor chamber 25 inside the main body housing 20, a filter 27 disposed at the boundary between the flow path 26 and the collection chamber 24, a sponge sheet 28 disposed in the flow path 26, and a connecting pipe 29 disposed at the upper part of the main body housing 20.

[0044] The flow path 26 is provided on the right side of the collection chamber 24 and the motor chamber 25 inside the main body housing 20. The flow path 26 is provided so as to extend in the vertical direction. The upper part of the flow path 26 is connected to the collection chamber 24. The lower part of the flow path 26 is connected to the motor chamber 25. The collection chamber 24 and the motor chamber 25 are connected via the flow path 26.

[0045] The filter 27 collects dust. The filter 27 is disposed in the right part of the collection chamber 24. As the filter 27, a HEPA filter (High Efficiency Particulate Air Filter) is exemplified. The filter 27 is detachable from the main body housing 20.

[0046] The sponge sheet 28 is disposed in the middle part of the flow path 26. In the vertical direction, the sponge sheet 28 is disposed below the filter 27. The sponge sheet 28 suppresses foreign matter from entering the motor chamber 25 from the collection chamber 24, for example, when the filter 27 comes off.

[0047] The connecting pipe 29 is disposed so as to penetrate the upper part of the main body housing 20. The lower end part of the connecting pipe 29 is disposed in the collection chamber 24. The dust bag 11 is connected to the lower end part of the connecting pipe 29. The dust is accommodated in the dust bag 11.

[0048] The head part 3 faces the surface to be cleaned. The head part 3 is movable on the surface to be cleaned. The head part 3 includes a head housing 30, a bumper 31, a rotating brush 32, a side brush 33, a connecting pipe 34, traveling wheels 35, auxiliary wheels 36, and a suction port 37.

[0049] The head housing 30 is connected to the main body housing 20. The suction port 37 is disposed at the front of the bottom of the head housing 30. The suction port 37 sucks in the dust on the surface to be cleaned.

[0050] The bumper 31 is disposed so as to cover the front of the head housing 30. The bumper 31 protects the head portion 3.

[0051] The rotary brush 32 is disposed at the suction port 37. The rotary brush 32 is rotatable about a rotation axis extending in the left - right direction. The rotary brush 32 rotates so as to scrape the dust existing on the surface to be cleaned. The height - adjustment dial 7 is disposed on the upper part of the head housing 30. The height - adjustment dial 7 is operated by the user. When the height - adjustment dial 7 is operated, the height of the rotary brush 32 is adjusted.

[0052] The side brushes 33 are respectively disposed at the front of the left end portion and the front of the right end portion of the head housing 30. The side brushes 33 collect the dust on the surface to be cleaned into the suction port 37.

[0053] The connecting pipe 34 is connected to the connecting tube 4. The connecting pipe 34 sends the dust sucked from the suction port 37 to the connecting tube 4. The front end portion of the connecting pipe 34 is connected to the suction port 37. The rear end portion of the connecting pipe 34 is connected to the connecting tube 4.

[0054] Each of the traveling wheels 35 and the auxiliary wheels 36 is provided at the bottom of the head housing 30. Two traveling wheels 35 are provided. The traveling wheels 35 rotate about a rotation axis extending in the left - right direction. When the traveling wheels 35 rotate, the head portion 3 moves. Two auxiliary wheels 36 are provided. The auxiliary wheels 36 are disposed in front of the traveling wheels 35. The auxiliary wheels 36 rotate about a rotation axis extending in the left - right direction.

[0055] The head portion 3 has lights 8 that illuminate the front of the head portion 3. Two lights 8 are provided at the front of the head portion 3.

[0056] The connecting pipe 4 connects the main body portion 2 and the head portion 3. The connecting pipe 4 connects the connecting pipe 29 of the main body portion 2 and the connecting pipe 34 of the head portion 3. The connecting pipe 4 is arranged along the vertical direction at the rear right of the main body portion 2.

[0057] The drive unit 40 includes a blower fan 42 and a motor 41 that rotates the blower fan 42. The motor 41 is a power source of the cleaner 1. The motor 41 is an electric motor. The motor 41 is an inner rotor type DC brushless motor. The drive unit 40 generates a suction force at a suction port 37 that leads to the inside of the main body housing 20.

[0058] The sound absorption member 16 is arranged at least partially around the drive unit 40. As the sound absorption member 16, a porous member made of synthetic resin is exemplified.

[0059] The controller 14 controls the electric members mounted on the cleaner 1. The controller 14 controls at least the motor 41. The controller 14 controls the drive current supplied from the battery pack 10 to the motor 41. The controller 14 includes a substrate on which a plurality of electronic components are mounted. Examples of the electronic components mounted on the substrate include a processor such as a CPU (Central Processing Unit), a non-volatile memory such as a ROM (Read Only Memory) or a storage, a volatile memory such as a RAM (Random Access Memory), and a resistor.

[0060] The handle portion 5 is connected to the upper part of the main body housing 20. The handle portion 5 is gripped by the user. The user can move the cleaner 1 while gripping the handle portion 5. An operation switch 15 is provided on the handle portion 5. The user can operate the operation switch 15 while gripping the handle portion 5. The operation switch 15 is operated by the user to switch the driving and stopping of the motor 41. The operation switch 15 includes a drive switch 15A operated to drive the motor 41 and a stop switch 15B operated to stop the motor 41. When the drive switch 15A is operated while the motor 41 is stopped, the motor 41 starts up. When the drive switch 15A is operated while the motor 41 is driving, the drive mode of the motor 41 is switched.

[0061] FIG. 9 is a perspective view from the left front showing the battery mounting portion 9 and the battery pack 10 according to the embodiment.

[0062] The battery chamber 23 is provided in the lower part of the main body housing 20. The battery chamber 23 is arranged below the collection chamber 24. The battery chamber 23 is arranged above the motor chamber 25. The battery chamber 23 is arranged directly above the drive unit 40. An opening is provided in the left part of the battery chamber 23. The battery mounting portion 9 is arranged on the bottom surface of the battery chamber 23. The battery pack 10 is mounted on the battery mounting portion 9. When the battery pack 10 is mounted on the battery mounting portion 9, all of the battery pack 10 is housed in the battery chamber 23. The battery pack 10 does not project outside the battery chamber 23.

[0063] In the embodiment, one battery mounting portion 9 is provided. The battery pack 10 supplies power to the cleaner 1 while being mounted on the battery mounting portion 9. The battery pack 10 supplies drive current to the motor 41. The motor 41 is driven by the power supply from the battery pack 10. The controller 14 operates by the power supply from the battery pack 10. The battery pack 10 is a general-purpose battery that can be used as a power supply unit for various electrical devices. The battery pack 10 can be used as the power supply unit of a power tool. The battery pack 10 can be used as the power supply unit of an electrical device other than a power tool. The battery pack 10 can be used as the power supply unit of a cleaner different from the cleaner 1 according to the embodiment. The battery pack 10 includes a lithium-ion battery. The battery pack 10 includes a rechargeable secondary battery. The battery mounting portion 9 has the same structure as the battery mounting portion of a power tool.

[0064] The user of the cleaner 1 can perform the operation of mounting the battery pack 10 on the battery mounting portion 9 and the operation of removing the battery pack 10 from the battery mounting portion 9. The battery mounting portion 9 has a guide member and a body terminal. The battery pack 10 has a battery terminal. The guide member of the battery mounting portion 9 guides the battery pack 10. The body terminal of the battery mounting portion 9 is connected to the battery terminal of the battery pack 10. The user can mount the battery pack 10 on the battery mounting portion 9 by inserting the battery pack 10 into the battery mounting portion 9 from the left side through the opening in the left part of the battery chamber 23. The battery pack 10 is inserted into the battery mounting portion 9 while being guided by the guide member. When the battery pack 10 is mounted on the battery mounting portion 9, the battery terminal of the battery pack 10 and the body terminal of the battery mounting portion 9 are electrically connected. The battery pack 10 has a release button. The user of the cleaner 1 can remove the battery pack 10 from the battery mounting portion 9 by operating the release button of the battery pack 10 and moving the battery pack 10 to the right side.

[0065] [Drive Unit] FIG. 10 is a perspective view showing the main body 2 according to the embodiment. FIG. 11 is a perspective view showing a state where the motor chamber cover 22 is removed from the main body housing 20 according to the embodiment. FIG. 12 is a perspective view showing the drive unit 40 disposed in the motor chamber 25 according to the embodiment. FIG. 13 is a perspective view showing a state where the drive unit 40 is removed from the motor chamber 25 according to the embodiment. FIG. 14 is a front view showing the drive unit 40 disposed in the motor chamber 25 according to the embodiment. FIG. 15 is a cross-sectional view showing the main body 2 according to the embodiment, corresponding to a cross-sectional arrow view taken along line D-D of FIG. 10. FIG. 16 is a side view showing the drive unit 40 according to the embodiment. FIG. 17 is a cross-sectional view showing the drive unit 40 according to the embodiment. FIG. 18 is an exploded view showing the drive unit 40 according to the embodiment. FIG. 19 is an exploded perspective view of the drive unit 40 according to the embodiment from the right front. FIG. 20 is a perspective view of the first support member 60 according to the embodiment from the right front. FIG. 21 is a perspective view of the first support member 60 according to the embodiment from the left rear. FIG. 22 is a cross-sectional view showing the first support member 60 according to the embodiment. FIG. 23 is a view of the first support member 60 according to the embodiment as seen from below. FIG. 24 is a perspective view of the second support member 80 according to the embodiment from the right front. FIG. 25 is a perspective view of the second support member 80 according to the embodiment from the left rear. FIG. 26 is a cross-sectional view showing the second support member 80 according to the embodiment.

[0066] As shown in FIG. 10, the first exhaust port 12 is provided in the left part of the motor chamber cover 22. The second exhaust port 13 is provided in the left part of the lower portion of the main body housing 20 and the left part of the lower portion of the motor chamber cover 22.

[0067] The drive unit 40 is disposed in the motor chamber 25. The motor chamber 25 is covered by the motor chamber cover 22. The drive unit 40 includes a motor 41, a blower fan 42, a motor housing 43, a base 44, a fan cover 45, a sensor board 46, and a cooling fan 47.

[0068] The drive unit 40 is an inner rotor type DC brushless motor. As shown in FIGS. 17, 18, and 19, the drive unit 40 includes a stator 48, a rotor 49, and a rotor shaft 50. The stator 48 has a stator core having a plurality of teeth, an insulator fixed to the stator core, and a coil wound around the teeth of the stator core via the insulator. The rotor 49 is disposed radially inside the stator 48. The rotor 49 has a rotor core and a plurality of permanent magnets embedded in the rotor core. The rotor shaft 50 is fixed to the rotor 49. The rotor 49 is disposed around the rotor shaft 50. The rotor shaft 50 is long in the left - right direction. The rotor 49 and the rotor shaft 50 rotate together about the rotation axis AX of the drive unit 40. The rotation axis AX extends in the left - right direction. The right end portion of the rotor shaft 50 is rotatably supported by a bearing 51. The left end portion of the rotor shaft 50 is rotatably supported by a bearing 52.

[0069] The sensor substrate 46 detects the position of the rotor 49 in the rotation direction. The sensor substrate 46 is fixed to the left part of the insulator of the stator 48. The sensor substrate 46 has a rotation detection element supported by an annular circuit board. The rotation detection element detects the position of the rotor 49 in the rotation direction by detecting the position of the permanent magnet of the rotor 49. The controller 14 supplies a drive current to the coil of the stator 48 based on the detection data of the rotation detection element.

[0070] The blower fan 42 generates a suction force at the suction port 37. The blower fan 42 is fixed to the right end portion of the rotor shaft 50. When the rotor shaft 50 rotates, the blower fan 42 rotates together with the rotor shaft 50. When the blower fan 42 rotates, a suction force is generated at the suction port 37.

[0071] The motor housing 43 houses the motor 41. The motor housing 43 includes a stator holding portion 43A that holds the stator 48, a bearing holding portion 43B that holds the bearing 51, a bearing holding portion 43C that holds the bearing 52, a fan housing portion 43D that houses the cooling fan 47, an air intake port 43E provided in the left portion of the stator holding portion 43A, and an exhaust port 43F provided in the lower portion of the fan housing portion 43D.

[0072] The base 44 is disposed around the right portion of the motor housing 43. The base 44 is fixed to the motor housing 43. The base 44 supports the fan cover 45.

[0073] The fan cover 45 is disposed so as to cover at least a part of the blower fan 42. The fan cover 45 is connected to the base 44. At least a part of the fan cover 45 is disposed around the blower fan 42. At least a part of the fan cover 45 is disposed to the right of the blower fan 42. The peripheral edge of the fan cover 45 is fixed to the base 44. The fan cover 45 has a fan intake port. The fan intake port is provided at the right end of the fan cover 45. When the blower fan 42 rotates, air flows into the blower fan 42 from the fan intake port. The air that has passed through the blower fan 42 flows out to the left side of the base 44 through the opening provided in the base 44.

[0074] The cooling fan 47 cools the motor 41. The cooling fan 47 is fixed to the rotor shaft 50 between the bearing 51 and the stator 48. The outer diameter of the cooling fan 47 is smaller than the outer diameter of the blower fan 42. When the rotor shaft 50 rotates, the cooling fan 47 rotates together with the rotor shaft 50. When the cooling fan 47 rotates, the air around the motor housing 43 flows into the inside of the motor housing 43 through the air intake port 43E. The air that has flowed into the inside of the motor housing 43 cools the motor 41 by contacting the motor 41. The air inside the motor housing 43 is discharged to the outside of the motor housing 43 through the exhaust port 43F.

[0075] The first support member 60 is attached to at least a part of the drive unit 40. The first support member 60 is made of rubber. The first support member 60 is supported by the main body housing 20. At least a part of the main body housing 20 is sandwiched between the main body housing 20 and the motor chamber cover 22.

[0076] The first support member 60 has a drive unit support portion 61, a main body support portion 62, a connecting portion 63, an opening 64, a reinforcing rib 65, a holding rib 66, and a positioning rib 67.

[0077] The drive unit support portion 61 supports the drive unit 40. The drive unit support portion 61 is connected to the motor housing 43. The drive unit support portion 61 contacts the outer peripheral surface of the motor housing 43. A pair of drive unit support portions 61 are provided. The drive unit support portions 61 are respectively arranged above and below the rotation axis AX of the motor 41.

[0078] The main body support portion 62 is supported by the main body housing 20. At least a part of the outer peripheral surface of the main body support portion 62 is arc-shaped. A pair of main body support portions 62 are provided. The main body support portions 62 are respectively arranged above and below the rotation axis AX of the motor 41. In the radial direction of the rotation axis AX, the main body support portion 62 is arranged outside the drive unit support portion 61. The drive unit support portion 61 and the main body support portion 62 are integral.

[0079] The main body support portion 62 includes a pair of arc portions 62A. One of the arc portions 62A is disposed at the front end portion of the main body support portion 62. The other arc portion 62A is disposed at the rear end portion of the main body support portion 62. The main body support portion 62 has long side portions 62B and 62C that connect the pair of arc portions 62A. The long side portion 62B connects the right end portions of one of the arc portions 62A and the other arc portion 62A. The long side portion 62C connects the left end portions of one of the arc portions 62A and the other arc portion 62A. The main body support portion 62 is oblong in the front-rear direction. The longitudinal direction of the main body support portion 62 is the front-rear direction. There are no corners in the main body support portion 62. The arc portion 62A and the long side portion 62B are smoothly connected. The arc portion 62A and the long side portion 62C are smoothly connected. The main body support portion 62 has a shape that is easily bendable. The shape of the main body support portion 62 is a shape that exhibits flexibility. The main body support portion 62 can bend at least in the left-right direction.

[0080] The connecting portion 63 connects the drive unit support portion 61 above the rotation axis AX and the drive unit support portion 61 below the rotation axis AX. The connecting portion 63 is connected to the outer peripheral surface of the motor housing 43. A pair of connecting portions 63 are provided. One of the connecting portions 63 connects the front end portions of the drive unit support portion 61 on the upper side and the drive unit support portion 61 on the lower side. The other connecting portion 63 connects the rear end portions of the drive unit support portion 61 on the upper side and the drive unit support portion 61 on the lower side. The drive unit support portion 61 and the connecting portion 63 are integral.

[0081] The opening 64 is provided in the main body support portion 62. The main body support portion 62 is substantially annular. The main body support portion 62 has the opening 64. The opening 64 is provided so as to penetrate the outer peripheral surface and the inner peripheral surface of the main body support portion 62. The opening 64 may be provided so as to penetrate the outer peripheral surface of the main body support portion 62 and the inner peripheral surface of the drive unit support portion 61. The main body support portion 62 can bend so that the opening 64 becomes smaller. The main body support portion 62 can bend so as to be crushed in the left-right direction.

[0082] As shown in FIG. 17, an opening 64 provided in the main body support portion 62 below the rotation axis AX is connected to the exhaust port 43F of the motor housing 43. The air flowing out from the cooling fan 47 due to the rotation of the cooling fan 47 is discharged to the outside of the main body housing 20 through the exhaust port 43F and the opening 64. As shown in FIG. 12, the opening 64 provided in the lower main body support portion 62 is connected to a flow path 25B provided in the lower part of the motor chamber 25. The main body housing 20 has a partition wall 25A protruding from the inner surface of the main body housing 20 toward the motor chamber 25. Although not shown, the motor chamber cover 22 has a partition wall protruding from the inner surface of the motor chamber cover 22 toward the motor chamber 25. When the motor chamber cover 22 is attached to the main body housing 20, the partition wall 25A protruding from the inner surface of the main body housing 20 and the partition wall protruding from the inner surface of the motor chamber cover 22 are connected. The flow path 25B is defined by the partition wall 25A protruding from the inner surface of the main body housing 20 and the partition wall protruding from the inner surface of the motor chamber cover 22.

[0083] The flow path 25B is connected to the second exhaust port 13. The air flowing out from the cooling fan 47 due to the rotation of the cooling fan 47 flows through the flow path 25B via the exhaust port 43F and the opening 64. The air flowing through the flow path 25B is discharged to the outside of the main body portion 2 through the second exhaust port 13. The air flowing out from the cooling fan 47 is hot air that has come into contact with the motor 41. The hot air that has come into contact with the motor 41 is discharged from the motor chamber 25 through the second exhaust port 13 without staying in the motor chamber 25.

[0084] The reinforcing rib 65 is provided in the opening 64. The reinforcing rib 65 is connected to each of the long side portions 62B and 62C. The reinforcing rib 65 is provided so as to connect the long side portion 62B and the long side portion 62C. In the front-rear direction, which is the longitudinal direction of the main body support portion 62, the reinforcing rib 65 is provided at the central portion of the opening 64. Two reinforcing ribs 65 are provided in the front-rear direction inside the opening 64. Note that one reinforcing rib 65 may be provided. The reinforcing rib 65 suppresses the main body support portion 62 from being excessively bent or crushed.

[0085] The holding rib 66 is held by the main body housing 20. The holding rib 66 is provided at the central portion of the outer peripheral surface of the main body support portion 62 in the front - rear direction which is the longitudinal direction of the main body support portion 62. Two holding ribs 66 are provided on one main body support portion 62. One holding rib 66 protrudes rightward from the outer peripheral surface of the long - side portion 62B. One holding rib 66 is provided at the central portion of the long - side portion 62B in the front - rear direction. The other holding rib 66 protrudes leftward from the outer peripheral surface of the long - side portion 62C. The other holding rib 66 is provided at the central portion of the long - side portion 62C in the front - rear direction.

[0086] As shown in FIGS. 13 and 15, the main body housing 20 has support members 20C that protrude from the inner surface of the main body housing 20 toward the motor chamber 25. A pair of support members 20C are provided. The pair of support members 20C are arranged in the vertical direction. The support members 20C are arranged above and below the rotation axis AX respectively. The support members 20C have recesses 20D. The motor chamber cover 22 has support members 22C that protrude from the inner surface of the motor chamber cover 22 toward the motor chamber 25. A pair of support members 22C are provided. The pair of support members 22C are arranged in the vertical direction. The support members 22C are arranged above and below the rotation axis AX respectively. The support members 22C have recesses 22D.

[0087] When the motor chamber cover 22 is attached to the main body housing 20, the support member 20C above the rotation axis AX and the support member 22C above the rotation axis AX face each other. When the motor chamber cover 22 is attached to the main body housing 20, the support member 20C below the rotation axis AX and the support member 22C below the rotation axis AX face each other. The upper main body support portion 62 is arranged between the recess 20D of the upper support member 20C and the recess 22D of the upper support member 22C. The lower main body support portion 62 is arranged between the recess 20D of the lower support member 20C and the recess 22D of the lower support member 22C. The main body support portion 62 may or may not contact each of the support member 20C and the support member 22C.

[0088] When the motor chamber cover 22 is attached to the main body housing 20, the holding rib 66 is sandwiched between the main body housing 20 and the motor chamber cover 22. The holding rib 66 is sandwiched between the support member 20C and the support member 22C. The upper holding rib 66 is sandwiched between the upper support member 20C and the upper support member 22C. The lower holding rib 66 is sandwiched between the lower support member 20C and the lower support member 22C.

[0089] The positioning rib 67 protrudes leftward from the left surface of the drive unit support portion 61. The positioning rib 67 is supported by each of the support member 20C and the support member 22C.

[0090] In the embodiment, the first support member 60 has an up-and-down symmetric shape.

[0091] The second support member 80 is attached to at least a part of the drive unit 40. The second support member 80 is made of rubber. The second support member 80 is supported by the main body housing 20. The second support member 80 contacts the right wall 20B of the main body housing 20 facing the motor chamber 25.

[0092] The second support member 80 has a cylindrical portion 81, a tapered portion 82, an opening 83, an inner ring portion 84, an outer ring portion 85, and a support rib 86.

[0093] The cylindrical portion 81 is arranged around the rotation axis AX. The cylindrical portion 81 is arranged so as to surround the outer peripheral surface of the fan cover 45.

[0094] The tapered portion 82 is connected to the right end portion of the cylindrical portion 81. The outer diameter of the tapered portion 82 gradually decreases toward the right. The tapered portion 82 is arranged so as to cover the right surface of the fan cover 45.

[0095] The opening 83 is provided at the central portion of the tapered portion 82. In a plane orthogonal to the rotation axis AX, at least a part of the opening 83 and the fan intake port of the fan cover 45 coincide.

[0096] The inner ring portion 84 is disposed around the opening 83. The inner ring portion 84 is annular and surrounds the rotation axis AX. The inner ring portion 84 projects rightward from the right surface of the tapered portion 82.

[0097] The outer ring portion 85 is disposed around the inner ring portion 84. The outer ring portion 85 is annular and surrounds the rotation axis AX. The outer ring portion 85 projects rightward from the right surface of the tapered portion 82.

[0098] The inner ring portion 84 and the outer ring portion 85 form a double ring. In the left - right direction, the position of the right end portion of the inner ring portion 84 and the position of the right end portion of the outer ring portion 85 are the same. That is, the protruding height of the inner ring portion 84 from the tapered portion 82 and the protruding height of the outer ring portion 85 are the same. Each of the inner ring portion 84 and the outer ring portion 85 is easily bendable. Each of the inner ring portion 84 and the outer ring portion 85 contacts the left surface of the right wall 20B facing leftward. Each of the inner ring portion 84 and the outer ring portion 85 adheres closely to the left surface of the right wall 20B. Each of the inner ring portion 84 and the outer ring portion 85 functions as a sealing portion that seals the boundary between the right wall 20B and the second support member 80.

[0099] The support rib 86 is provided on the outer peripheral surface of the second support member 80. The support rib 86 is provided so as to project radially outward of the rotation axis AX from the outer peripheral surface of the cylindrical portion 81. At least one support rib 86 is provided. In the embodiment, the support ribs 86 are provided at equal intervals with a space in the circumferential direction of the rotation axis AX. The support rib 86 is provided so as to extend in the left - right direction parallel to the rotation axis AX.

[0100] The main body housing 20 has an arc rib 20E that supports the second support member 80. The motor chamber cover 22 has an arc rib 22E that supports the second support member 80. Each of the arc rib 20E and the arc rib 22E supports a support rib 86. Each of the arc rib 20E and the arc rib 22E is provided so as to extend in the vertical direction orthogonal to the support rib 86. When the motor chamber cover 22 is attached to the main body housing 20, the cylindrical portion 81 is sandwiched between the arc rib 20E and the arc rib 22E via the support rib 86.

[0101] A connection port 26A is provided in the right wall 20B where the inner ring portion 84 and the outer ring portion 85 contact. The connection port 26A is connected to the flow path 26. The connection port 26A is an opening provided at the lower end portion of the flow path 26. In a plane orthogonal to the rotation axis AX, at least a part of the connection port 26A, at least a part of the opening 83 of the second support member 80, and at least a part of the fan intake port of the fan cover 45 coincide.

[0102] [Claw member] FIG. 27 is a perspective cross-sectional view showing the lower part of the cleaner 1 according to the embodiment. FIG. 28 is a cross-sectional view showing the lower part of the cleaner 1 according to the embodiment. As shown in FIGS. 27 and 28, the foot lever 6 is rotatably supported by the support shaft 17. A claw member 90 is disposed around a part of the support shaft 17. A claw portion 6A provided on the foot lever 6 is hooked on the claw member 90. When the foot lever 6 is operated and the claw member 90 rotates around the support shaft 17, the state where the main body portion 2 and the head portion 3 are fixed is switched to the state where the fixation is released.

[0103] The claw member 90 is detachable from the main body housing 20. That is, the claw member 90 is replaceable. The hardness of the claw member 90 is higher than the hardness of the main body housing 20. The main body housing 20 is, for example, an ABS resin. The claw member 90 is, for example, a glass fiber reinforced plastic. Since the hardness of the claw member 90 is higher than the hardness of the main body housing 20, the long life of the claw member 90 can be achieved. When the claw member 90 deteriorates or breaks, it is replaced with a new claw member 90.

[0104] [Operation of the Cleaner] When the drive switch 15A is operated by the user and the drive of the motor 41 is started, the blower fan 42 rotates. When the blower fan 42 rotates, a suction force is generated in the motor chamber 25. When a suction force is generated in the motor chamber 25, a suction force is generated at the suction port 37 of the head portion 3. When a suction force is generated at the suction port 37, the dust present on the cleaning target surface is sucked into the suction port 37 together with the air.

[0105] The user can move the cleaner 1 while holding the handle portion 5 by hand. When the cleaning target surface includes a carpet, the rotating brush 32 rotates, and the dust present on the carpet is scraped off by the rotating brush 32. The side brush 33 collects the dust present on the cleaning target surface into the suction port 37.

[0106] The dust sucked into the suction port 37 is sent to the collection chamber 24 through the connecting pipe 34, the connecting pipe 4, and the connecting pipe 29. A dust bag 11 is disposed in the collection chamber 24. The dust bag 11 is connected to the connecting pipe 29 in the collection chamber 24. The dust sent to the collection chamber 24 is collected in the dust bag 11. The air that has passed through the dust bag 11 flows into the flow path 26 through the filter 27. The dust that could not be completely collected by the dust bag 11 is collected by the filter 27. The air that has flowed into the flow path 26 passes through the sponge sheet 28 and then flows into the motor chamber 25 through the connection port 26A. The air that has passed through the connection port 26A flows into the blower fan 42 through the opening 83 of the second support member 80 and the fan intake port of the fan cover 45. The air that has passed through the blower fan 42 flows out to the left side of the base 44 through the opening provided in the base 44. The air that has flowed out to the left side of the base 44 is discharged to the outside of the main body portion 2 from the first exhaust port 12 after passing through the passage 25C shown in FIG. 15. The passage 25C is provided in the partition wall disposed between the motor chamber 25 and the battery chamber 23.

[0107] Due to the rotation of the blower fan 42, the flow path 26 becomes negative pressure, so the second support member 80 moves slightly to the right so that each of the inner ring portion 84 and the outer ring portion 85 is in close contact with the right wall 20B. Since each of the inner ring portion 84 and the outer ring portion 85 is in close contact with the right wall 20B, leakage of air from the boundary between the right wall 20B and the second support member 80 is suppressed.

[0108] [Effect] As described above, in the embodiment, the cleaner 1 includes a main body housing 20, a blower fan 42 and a motor 41 for rotating the blower fan 42, a drive unit 40 that generates a suction force at a suction port 37 communicating with the inside of the main body housing 20, and a first support member 60 that is mounted on at least a part of the drive unit 40 and has a main body support portion 62 supported by the main body housing 20. At least a part of the outer peripheral surface of the main body support portion 62 is arc-shaped.

[0109] In the above configuration, since the main body support portion 62 has a shape that is easily bent, transmission of the vibration generated by the drive unit 40 to the main body housing 20 is suppressed. Therefore, the noise generated from the cleaner 1 is suppressed.

[0110] In the embodiment, the main body support portion 62 has an opening 64.

[0111] In the above configuration, the opening 64 makes the main body support portion 62 more easily bent, so transmission of the vibration generated by the drive unit 40 to the main body housing 20 is suppressed. Therefore, the noise generated from the cleaner 1 is suppressed.

[0112] In the embodiment, the main body support portion 62 is oval. The main body support portion 62 has a holding rib 66 provided at the central portion of the outer peripheral surface of the main body support portion 62 in the longitudinal direction of the main body support portion 62. The holding rib 66 is held by the main body housing 20.

[0113] In the above configuration, since the contact area between the main body support portion 62 and the main body housing 20 is reduced, vibration generated by the drive unit 40 is suppressed from being transmitted to the main body housing 20. Therefore, noise generated from the cleaner 1 is suppressed.

[0114] In the embodiment, the drive unit 40 is disposed in the motor chamber 25 of the main body housing 20. The cleaner 1 includes a motor chamber cover 22 that covers the motor chamber 25. The holding rib 66 is sandwiched between the main body housing 20 and the motor chamber cover 22.

[0115] In the above configuration, the main body support portion 62 is fixed to the main body housing 20 and the motor chamber cover 22. Since the contact area between the main body support portion 62 and each of the main body housing 20 and the motor chamber cover 22 is reduced, vibration generated by the drive unit 40 is suppressed from being transmitted to the main body housing 20 and the motor chamber cover 22. Therefore, noise generated from the cleaner 1 is suppressed.

[0116] In the embodiment, the main body support portion 62 is oval. The main body support portion 62 has a reinforcing rib 65 provided at the opening 64 in the longitudinal direction of the main body support portion 62.

[0117] In the above configuration, excessive deflection of the main body support portion 62 is suppressed.

[0118] In the embodiment, the first support member 60 has a drive unit support portion 61 that supports the drive unit 40.

[0119] In the above configuration, the drive unit 40 is stably supported by the drive unit support portion 61 of the first support member 60.

[0120] In the embodiment, the main body support portion 62 and the drive unit support portion 61 are disposed on the upper side which is one side of the rotation axis AX of the motor 41 and the lower side which is the other side, respectively.

[0121] In the above configuration, the first support member 60 is stably supported by the main body housing 20 via a pair of main body support portions 62, and the drive unit 40 can be stably supported by the pair of drive unit support portions 61.

[0122] In the embodiment, the first support member 60 has a connecting portion 63 that connects the drive unit support portion 61 on the upper side, which is one side, and the drive unit support portion 61 on the lower side, which is the other side.

[0123] In the above configuration, the pair of drive unit support portions 61 and the pair of main body support portions 62 are integrated by the connecting portion 63.

[0124] In the embodiment, the drive unit 40 has a cooling fan 47 that cools the motor 41. The air flowing out from the cooling fan 47 is discharged to the outside of the main body housing 20 through the opening 64.

[0125] In the above configuration, the hot air that flows out from the cooling fan 47 and contacts the motor 41 is discharged to the outside of the main body housing 20 without staying inside the main body housing 20 after passing through the opening 64 of the main body support portion 62.

[0126] In the embodiment, the cleaner 1 includes a second support member 80 that is attached to at least a part of the drive unit 40 and is supported by the main body housing 20.

[0127] In the above configuration, the drive unit 40 is supported by the main body housing 20 via the first support member 60 and the second support member 80. The vibration generated by the drive unit 40 is suppressed from being transmitted to the main body housing 20 by the first support member 60 and the second support member 80. Therefore, the noise generated from the cleaner 1 is suppressed.

[0128] In the embodiment, the second support member 80 has at least one support rib 86 provided on the outer peripheral surface of the second support member 80.

[0129] In the above configuration, since the contact area between the second support member 80 and the main body housing 20 is reduced, vibration generated by the drive unit 40 is suppressed from being transmitted to the main body housing 20. Therefore, noise generated from the cleaner 1 is suppressed.

[0130] In the embodiment, the support rib 86 extends in a direction parallel to the rotation axis AX of the motor 41. The main body housing 20 has an arc rib 20E that supports the support rib 86. The arc rib 20E extends in a direction orthogonal to the support rib 86.

[0131] In the above configuration, since the contact area between the second support member 80 and the main body housing 20 is further reduced, vibration generated by the drive unit 40 is suppressed from being transmitted to the main body housing 20. Therefore, noise generated from the cleaner 1 is suppressed.

[0132] [Other Embodiments] In the above-described embodiment, the main body support portion 62 is formed in an oval shape. The main body support portion 62 may be formed in a perfect circular shape or an elliptical shape.

[0133] In the above-described embodiment, the cleaner 1 is an upright cleaner. The cleaner 1 may be a stick-type cleaner, a canister-type cleaner, or a backpack-type cleaner.

Description of Reference Numerals

[0134] 1... Cleaner, 2... Main body, 3... Head part, 4... Connecting pipe, 5... Handle part, 6... Foot lever, 6A... Claw part, 7... Height adjustment dial, 8... Light, 9... Battery mounting part, 10... Battery pack, 11... Dust bag, 12... First exhaust port, 13... Second exhaust port, 14... Controller, 15... Operation switch, 15A... Drive switch, 15B... Stop switch, 16... Sound absorption member, 17... Support shaft, 20... Main body housing, 20A... Latch mechanism, 20B... Right wall, 20C... Support member, 20D... Recess, 20E... Arc rib, 21... Collection chamber cover, 21A... Latch lever, 22... Motor chamber cover, 22C... Support member, 22D... Recess, 22E... Arc rib, 23... Battery chamber, 24... Collection chamber, 25... Motor chamber, 25A... Partition wall, 25B... Flow path, 25C... Passage, 26... Flow path, 26A... Connection port, 27... Filter, 28... Sponge sheet, 29... Connecting pipe, 30... Head housing, 31... Bumper, 32... Rotating brush, 33... Side brush, 34... Connecting pipe, 35... Traveling wheel, 36... Auxiliary wheel, 37... Suction port, 40... Drive unit, 41... Motor, 42... Blower fan, 43... Motor housing, 43A... Stator holding part, 43B... Bearing holding part, 43C... Bearing holding part, 43D... Fan housing part, 43E... Air intake port, 43F... Exhaust port, 44... Base, 45... Fan cover, 46... Sensor board, 47... Cooling fan, 48... Stator, 49... Rotor, 50... Rotor shaft, 51... Bearing, 52... Bearing, 60... First support member, 61... Drive unit support part, 62... Main body support part, 62A... Arc part, 62B... Long side part, 62C... Long side part, 63... Connecting part, 64... Opening, 65... Reinforcing rib, 66... Holding rib, 67... Positioning rib, 80... Second support member, 81... Cylindrical part, 82... Taper part, 83... Opening, 84... Inner ring part, 85... Outer ring part, 86... Support rib, 90... Claw member, AX... Rotation axis.

Claims

1. A main body housing; a drive unit including a blower fan and a motor for rotating the blower fan, the drive unit generating a suction force at an intake port leading to an inside of the main body housing; a first support member attached to at least a portion of the drive unit and having a body support portion supported by the body housing; At least a part of the outer circumferential surface of the main body support portion is arc-shaped. Cleaner.

2. The body support portion has an opening.

2. The cleaner of claim 1.

3. the body support portion has an elliptical shape and a retaining rib provided at a central portion of an outer circumferential surface of the body support portion in a longitudinal direction of the body support portion; The retaining rib is retained by the main body housing.

3. The cleaner of claim 2.

4. The drive unit is disposed in a motor chamber of the main body housing, a motor chamber cover for covering the motor chamber; The retaining rib is sandwiched between the main body housing and the motor chamber cover.

4. The cleaner of claim 3.

5. The body support portion has an oval shape and a reinforcing rib provided at the opening in the longitudinal direction of the body support portion.

5. The cleaner of claim 4.

6. The first support member has a drive unit support portion that supports the drive unit.

6. The cleaner of claim 5.

7. the main body support portion and the drive unit support portion are disposed on one side and the other side of a rotation shaft of the motor, respectively; 7. The cleaner of claim 6.

8. the first support member has a connecting portion that connects the drive unit support portion on the one side to the drive unit support portion on the other side, 8. The cleaner of claim 7.

9. The drive unit has a cooling fan that cools the motor, The air flowing out from the cooling fan is discharged to the outside of the main body housing through the opening.

9. The cleaner of claim 8.

10. a second support member attached to at least a portion of the drive unit and supported by the main body housing; 2. The cleaner of claim 1.

11. The second support member has at least one support rib provided on an outer circumferential surface of the second support member. The cleaner of claim 10.

12. The support rib extends in a direction parallel to a rotation shaft of the motor, The main body housing has an arc rib that supports the support rib, The arc rib extends in a direction perpendicular to the support rib. The cleaner of claim 11.

Images