CN112294177A

CN112294177A - Suction port body of electric dust collector and electric dust collector

Info

Publication number: CN112294177A
Application number: CN202010518608.9A
Authority: CN
Inventors: 森川广基
Original assignee: Iris Ohyama Inc
Current assignee: Iris Ohyama Inc
Priority date: 2019-07-31
Filing date: 2020-06-09
Publication date: 2021-02-02
Also published as: JP7097616B2; JP2021023351A

Abstract

The invention aims to provide a suction port body of an electric dust collector capable of effectively cooling a motor and the electric dust collector with the suction port body; the suction port body (50) of the electric dust collector is provided with a shell (60) and a rotary cleaning body (82); the housing (60) is provided with: the cleaning device comprises a suction chamber (62) having a suction port (62a), a rotary cleaning body chamber (64) in which a rotary cleaning body (82) is disposed in front of the suction port (62a), a first motor (84a) housed in the housing and generating a driving force for driving the rotary cleaning body (82), a first opening (72) provided at a predetermined position other than the side portion of the housing (60) and communicating the inside of the housing (60) with the outside, and a second opening (74) communicating the inside of the housing (60) with the rotary cleaning body chamber (64).

Description

Suction port body of electric dust collector and electric dust collector

Technical Field

The present invention relates to a suction port body of an electric vacuum cleaner and an electric vacuum cleaner having the same.

Background

A vacuum cleaner capable of sucking dust on a cleaning surface is known, for example, as disclosed in patent document 1 below. In the electric vacuum cleaner disclosed in patent document 1, a suction port body is used in which a suction opening is formed on a bottom surface side and a substantially cylindrical motor is disposed inside. Further, in the suction port body disclosed in patent document 1, a cooling vent hole is formed in the side surface, and a ventilation passage through which cooling air introduced from the cooling vent hole passes is formed on the side of a flat surface portion formed in the side surface so that a cross-sectional shape orthogonal to the axis of the motor is substantially elliptical.

[ Prior Art document ]

[ patent document ]

Patent document 1: japanese patent laid-open No. 9-47395

However, in the case of a configuration in which holes are provided in the side surface as in the suction port body disclosed in patent document 1, for example, the side surface is often cleaned along the wall surface, but in this case, there is a problem as follows: if the holes in the side surfaces are clogged with the wall surfaces, etc., the cooling air may not be sucked, and the motor may not be cooled efficiently.

Disclosure of Invention

Accordingly, an object of the present invention is to provide a suction port body of an electric vacuum cleaner capable of effectively cooling a motor, and an electric vacuum cleaner including the suction port body.

In order to solve the above problems, a suction port body of an electric vacuum cleaner according to an embodiment of the present invention is characterized in that: the cleaning device comprises a housing and a rotary cleaning body, wherein the housing is provided with a space inside and a suction port capable of sucking dust, and the rotary cleaning body is rotatably arranged in the housing; the housing has a housing chamber, a motor, a first opening, and a second opening, wherein the housing chamber is open to the outside in the front direction with respect to the suction port, and the rotary cleaning element is disposed; the motor is disposed in the space with respect to the housing chamber so as to be aligned in a direction intersecting with an axial direction of the rotary cleaning body, and generates a driving force for driving the rotary cleaning body; the first opening portion is provided at a position different from a side portion of the housing, and communicates the inside of the housing with the outside; the second opening portion communicates the inside of the housing with the storage chamber.

The suction port body of the electric vacuum cleaner according to the embodiment of the present invention includes a first opening portion that communicates the inside and the outside of a housing that houses a motor, and a second opening portion that communicates the inside of the housing with a housing chamber. Here, as described above, the storage chamber is open to the front and the outside with respect to the suction port. As described above, the housing chamber and the motor are arranged in the front-rear direction of the housing (the direction intersecting the axial direction of the rotating cleaning element). Therefore, when the electric vacuum cleaner is operated to generate suction force, an air flow is generated which flows into the housing from the first opening portion and reaches the storage chamber through the second opening portion. Therefore, according to the suction port body of the electric vacuum cleaner in the embodiment of the present invention, the motor in the interior of the housing can be cooled effectively.

(effect of the invention)

According to the present invention, it is possible to provide a suction port body of an electric vacuum cleaner capable of effectively cooling a motor, and an electric vacuum cleaner provided with the suction port body.

Drawings

Fig. 1 is a perspective view showing a state of an electric vacuum cleaner and a suction port body according to an embodiment of the present invention, as viewed from a front side.

Fig. 2 is a sectional view of the electric vacuum cleaner shown in fig. 1.

Fig. 3 is a plan view showing a state where an upper casing of a suction port body according to an embodiment of the present invention is removed.

Fig. 4 is a perspective view showing a state of the suction port body according to the embodiment of the present invention as viewed from the bottom surface side.

Fig. 5 is a perspective view showing a state where an upper casing of a suction port body according to an embodiment of the present invention is removed.

Fig. 6 is a perspective view showing a state where an upper casing and a tube portion of a suction port body according to an embodiment of the present invention are removed.

Fig. 7 is an exploded perspective view showing a state in which the upper casing and the pipe portion of the suction port body according to the embodiment of the present invention are removed and the motor chamber is exploded.

Fig. 8 is a plan view showing an enlarged main part of the suction port body according to the embodiment of the present invention in a state where the upper casing and the casing member are removed.

Fig. 9 is an exploded perspective view showing an enlarged main part of a state in which an upper case of a suction port body according to an embodiment of the present invention is removed and a motor chamber is exploded.

Fig. 10 (a) is an exploded perspective view showing a mounting structure of the cleaning element to the mounting portion and a state of the cleaning element driving mechanism as viewed from the first direction, and (b) is an exploded perspective view showing a state as viewed from a direction different from (a).

Fig. 11 is a bottom view showing a suction port body according to a third modification.

Fig. 12 is a main part enlarged perspective view showing a state of the suction port body in a state where the communication portion and the first opening portion according to the third modification are provided, as viewed from the bottom surface side.

Fig. 13 is an exploded perspective view showing a configuration according to a seventh modification.

(symbol description)

1: electric vacuum cleaner

50: suction inlet body

60: shell body

62: suction chamber

62 a: suction inlet

64: rotary cleaning body chamber

64 f: filter

66: motor chamber

66 b: housing part

66 e: inflow side opening

66 f: discharge side opening

68: knocking portion storage portion

70: pipe section

72: a first opening part

74: a second opening part

82: rotary cleaning body

82 a: cleaning body main body

82h, and (2): brush with brush head

84 a: a first motor

90: knocking part

94 a: second motor

Detailed Description

Hereinafter, the electric vacuum cleaner 1 according to the embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the suction port body 50 and the like provided as a suction head in the electric vacuum cleaner 1 will be described in detail after the overall configuration of the electric vacuum cleaner 1 is described in brief. In the following description, positional relationships in the front-rear direction, the vertical direction, the width direction, and the like will be described with reference to a state in which the electric vacuum cleaner 1 is erected as shown in fig. 1, unless otherwise specified.

"integral constitution of electric vacuum cleaner 1

Fig. 1 is a perspective view showing an upright state (a state when stored) of an electric vacuum cleaner 1 according to an embodiment. The electric vacuum cleaner 1 is a small-sized and lightweight electric vacuum cleaner (e.g., a bed cleaner) called a hand cleaner (hand cleaner). As shown in fig. 1, the electric vacuum cleaner 1 has a main body 10 and a suction port body 50. The main body 10 is formed in a substantially cylindrical shape. The electric vacuum cleaner 1 is configured to: a handle 30 is integrally provided on one end side of the main body 10, and a suction port body 50 is rotatably connected to the other end side of the main body 10. The electric vacuum cleaner 1 can be used by tilting the main body 10 at an arbitrary angle while holding the handle portion 30 and moving the suction port body 50 in the front-rear direction when cleaning an object to be cleaned such as a quilt, a rug, a carpet, or the like, or a floor (hereinafter collectively referred to as "cleaning object").

Fig. 2 is a sectional view of the electric vacuum cleaner 1 according to the embodiment. The internal structure of the electric vacuum cleaner 1 according to the embodiment will be described below with reference to fig. 2.

The main body 10 includes a substantially cylindrical main body case 10 a. A U-shaped handle portion 30 is integrally formed at an upper portion of the main body case 10 a. An intake port 11b is formed in a substantially central portion of the lower end of the main body case 10a, and a cylindrical duct cover (product cover)11 extends downward.

A dust sensor 11a for detecting dust is provided inside the air duct cover 11. The dust sensor 11a is composed of a light emitting element and a light receiving element, and light emitted from the light emitting element passes through the air duct cover 11 and is received by the light receiving element on the opposite side. By determining whether or not the received light is present, passage of dust can be detected. The position of the dust sensor 11a is not limited to the inside of the air duct cover 11, and any position may be used as long as dust can pass through it.

The motor chamber 15c houses a fan motor 15 as an electric blower. The fan motor 15 includes an intake fan 15a and an intake motor 15b, and is housed inside a casing 15 d. The casing 15d is configured to be separable from the intake fan 15a and the intake motor 15 b. A ring-shaped sound absorbing material 14 for covering the top surface and the side surface of the intake fan 15a is provided and covered by a casing 15d on the intake fan 15a side. A plurality of grooves extending in the axial direction without contacting the inner surface of the casing 15d on the side of the intake fan 15a are formed in an annular shape on the outer surface side of the sound absorbing material 14. When the suction fan 15a is driven by the suction motor 15b, negative pressure is generated inside the electric vacuum cleaner 1, and dust is sucked. The fan motor 15 is driven by PWM (pulse width modulation) control, but other control methods may be adopted depending on the type of the fan motor 15.

An annular nonwoven fabric filter 17 is provided above the fan motor 15. The nonwoven fabric filter 17 is closed at the top by a filter cover 18, and is provided with a discharge flow path 19 extending from the side surface of the nonwoven fabric filter 17 through the back surface side of the main body casing 10a to a discharge port 23 at the lower end.

The opening of the main body case 10a formed below the fan motor 15 is closed by a conical dust collection filter 13. The dust collecting filter 13 is a device in which a mesh filter (mesh filter) is insert-molded in a resin frame body, and separates air and dust (the description of the mesh filter is omitted). The dust collecting filter 13 may be a known filter such as a HEPA (High Efficiency Particulate Air) filter.

A dust cup 22 is mounted in front of the dust collection filter 13. Dust and the like sucked from the suction port body 50 are collected in the dust cup 22. By operating a release portion B (see FIG. 1) provided on a side surface of the dust cup 22, the dust cup 22 can be taken out of the main body 10 and the dust accumulated therein can be discarded.

The handle portion 30 is provided with an operation button 31 operated by a fingertip of a user and a display portion 32 for displaying an operation result thereof.

The power cord 33 is pulled out from the handle portion 30 and connected to the socket. If a rechargeable battery pack is mounted inside the main body case 10a, a cordless vacuum cleaner using the rechargeable battery pack as a power source can be realized.

The suction port body 50 is configured by assembling members such as the rotary cleaning portion 80 and the striking portion 90 to the housing 60. By turning the electric vacuum cleaner 1 on, the suction port body 50 can suck dust.

The electric vacuum cleaner 1 is formed substantially as described above. The electric vacuum cleaner 1 has a characteristic structure in various parts such as the suction port body 50. This will be described in further detail below.

Composition of suction inlet body 50

As shown in fig. 3 and the like, the suction port body 50 includes a housing 60, a rotary cleaning unit 80, and a hitting unit 90. The suction port body 50 is configured to integrate the rotary cleaning portion 80 and the striking portion 90 into the casing 60. The suction port body 50 can scrape or scrape dust from the cleaning object by rotating the cleaning unit 80. Further, the suction port body 50 can perform an operation of applying vibration or the like to the object to be cleaned and floating dust on the surface side of the object to be cleaned by the striking portion 90. The suction port body 50 can suck dust collected by the operation of rotating the cleaning unit 80 or the striking unit 90. The striking portion 90 is not limited to cleaning the object to be cleaned, and the striking portion 90 may be operated when cleaning the surface of the object to be cleaned such as a floor.

The housing 60 is a case having a space inside. As shown in fig. 2, the housing 60 includes an upper housing 60a and a lower housing 60b, and is configured to be vertically separable. The suction port body 50 is attached to the main body 10 and used in a posture in which the lateral direction of the casing 60 is the longitudinal direction and the longitudinal direction is the short direction as a basic posture. As shown in fig. 3 to 7, the housing 60 includes a suction chamber 62, a rotary cleaning element chamber 64, a motor chamber 66, a striking portion housing portion 68, a pipe portion 70, a first opening portion 72, and a second opening portion 74.

The suction chamber 62 is a portion forming a space into which dust can be sucked. The suction chamber 62 is provided to extend in the left-right direction (longitudinal direction) on the rear side (back side) of the housing 60. The suction chamber 62 is provided with a suction port 62a and communicates with a rotary cleaning body chamber 64 described later in detail. As shown in fig. 5 and 6, the housing 60 has a communication portion 65 that communicates with the suction chamber 62. Since the suction port 62a is located at the end of the communication portion 65, the communication portion 65 may have the suction port 62 a. The communication portion 65 is configured to: the tubular lateral tube portion 70a constituting the tube portion 70 described later in detail can be fitted rotatably in a posture in which the axial direction thereof is oriented in the left-right direction (longitudinal direction) of the housing 60. In the present embodiment, the communication portion 65 has a curved surface 65a curved so as to follow the circumferential surface of the horizontal tube portion 70a, and

support portions

65b, 65b for supporting the rotary shaft 72a of the horizontal tube portion 70a are provided at both end portions.

As shown in fig. 3 to 7, the rotary cleaning element chamber 64 is a space formed on the front side (a position adjacent to the short side direction of the housing 60) of the suction chamber 62 (suction port 62a) so as to extend in the left-right direction (longitudinal direction) of the housing 60. The rotary cleaning element chamber 64 communicates with the communicating portion 65 via the suction port 62 a.

The rotary cleaning element chamber 64 is a space for accommodating a rotary cleaning element 82 constituting a rotary cleaning unit 80 described later in detail. The lower case 60b of the case 60 constitutes a main part of the rotary cleaning chamber 64. As shown in fig. 4, the rotary cleaning element chamber 64 is open to the outside on the bottom surface side. The rotary cleaning element chamber 64 may be formed to have a substantially rectangular shape or the like opening on the bottom surface, for example, and may be divided into open regions by a frame 64a or the like formed in a grid shape or the like as shown in the present embodiment, for example. If the member like the frame 64a is provided, for example, even if the cleaning object is an object such as a bedding, the cleaning object can be prevented from being sucked into the rotary cleaning object chamber 64.

The rotary cleaning element chamber 64 is configured to: the rotary cleaning element 82 is rotatable inside thereof. As shown in fig. 5 to 7, the rotary cleaning element chamber 64 is formed in a shape curved in a substantially arc shape so as to extend along the outer periphery of the rotary cleaning element 82. In the lower case 60b, a portion forming the rotary cleaning element chamber 64 is provided in a shape protruding in an arc toward the inner space of the case 60. The rotary cleaning element chamber 64 has a first bearing portion 64b provided at one end side in the longitudinal direction for rotatably supporting one end of the rotary cleaning element 82. On the other hand, as shown in fig. 7 and the like, a notch 64c is provided in a portion on the other end side in the longitudinal direction of the rotating cleaning element chamber 64.

The notch 64c has a shape obtained by cutting a part (in the present embodiment, the top side part) of the peripheral surface 64d constituting the rotary cleaning element chamber 64. As shown in fig. 3, 7, and the like, the notch 64c is provided so as to be closable by a cleaning body side cover 66d of the housing member 66b, which will be described in detail later. The notch 64c is provided to fit a driven pulley 84d, which will be described in detail later, into the lower housing 60b, and an end of the driven pulley 84d is exposed to the rotary cleaning element chamber 64.

As shown in fig. 7 and the like, the rotary cleaning element chamber 64 has an opening 64e in a peripheral surface 64 d. The opening 64e is provided in a portion of the housing member 66b covered by the motor-side cover 66c, which will be described in detail later. Therefore, the opening 64e functions as a second opening 74, and the second opening 74 is used to communicate the motor chamber 66 formed by the housing member 66b with the rotary cleaning body chamber 64. The opening 64e is provided with a filter 64 f. The filter 64f prevents dust from entering the motor chamber 66 from the rotary cleaning body chamber 64. Even if dust adheres to the filter 64f from the side of the rotary cleaning body chamber 64, the rotary cleaning body 82 is rotated in the rotary cleaning body chamber 64, whereby the dust adhering to the filter 64f can be dropped and cleaned.

As shown in fig. 8, a stepped engaging portion 64i is provided at an end of the rotary cleaning element chamber 64. The step engaging portion 64i is a portion that engages with an end portion of the rotary cleaning element 82, which will be described in detail later.

As shown in fig. 3, 7, and the like, the motor chamber 66 is a space for accommodating a first motor 84a serving as a drive source for rotating the cleaning element 82 in the housing 60. The motor chamber 66 is provided on the front side of the rotary cleaning body chamber 64. That is, the motor chamber 66 is provided in the lateral direction of the housing 60 at a position opposite to the suction chamber 62 with respect to the rotating cleaning element chamber 64. The motor chamber 66 is located at a position closer to the notch 64c of the rotary cleaning element chamber 64 from the longitudinal center portion of the housing 60.

The motor chamber 66 is configured to be able to house the first motor 84a in a posture in which the axial direction thereof is oriented in the longitudinal direction (left-right direction) of the housing 60. As shown in fig. 7 and the like, the motor chamber 66 is formed by fixing the upper cover member 66b to a motor arrangement 66a formed on the lower case 60b side and into which substantially half of the circumference of the first motor 84a can be fitted. As shown by the broken line in fig. 3, when the first motor 84a is housed in the motor chamber 66, the projection 84f projecting radially outward at the axial direction intermediate portion of the first motor 84a is in contact with the inner peripheral surface of the motor chamber 66 over substantially the entire circumference. Thus, the inside of the motor chamber 66 is divided into two regions, one side and the other side in the axial direction, with the contact portion between the protruding portion 84f and the inner peripheral surface being a boundary. Specifically, the interior of the motor chamber 66 is divided into a first region 66x formed on the longitudinal center side of the casing 60 and a second region 66y on the longitudinal outer side.

The housing member 66b includes a motor-side cover 66c and a cleaning-body-side cover 66 d. The motor-side cover portion 66c is a portion that covers the first motor 84a by being attached so as to cover the motor arrangement portion 66 a.

As shown in fig. 7 and the like, the motor-side cover 66c is provided with an inflow-side opening 66e and a discharge-side opening 66 f. The inflow opening 66e is an opening provided on a surface facing the center in the longitudinal direction (left-right direction) of the casing 60 among the side surfaces forming the motor chamber 66. The discharge-side opening 66f is formed by an opening portion that is: when the motor side cover 66c is attached to the motor arrangement part 66a, an opening portion is formed in a lower end portion of a portion protruding toward the side where the rotary cleaning body chamber 64 is provided (the rear side of the housing 60) on the second region 66y side formed in the motor chamber 66. The discharge-side opening 66f is located at a position corresponding to the opening 64e of the rotary cleaning element chamber 64. Therefore, if the motor-side lid 66c is attached to the motor arrangement portion 66a, the discharge-side opening 66f communicates with the opening 64 e. Thereby, the motor chamber 66 and the rotary cleaning element chamber 64 are in a state of communication. The discharge-side opening 66f and the opening 64e are preferably connected to each other and communicate with each other, but may be opposed to each other with a gap therebetween.

The cleaning body side cover 66d is a portion that closes the rotary cleaning body chamber 64 by covering the notch 64c provided at the end of the rotary cleaning body chamber 64. The cleaning body side cover 66d is integrated with the motor side cover 66 c.

Here, the motor-side cover 66c and the cleaning-body-side cover 66d may be provided as separate members, but the number of components can be minimized by integrally forming the cover member 66b as in the present embodiment. In addition, in order to obtain other effects, the housing member 66b of the present embodiment is provided with the following structure: that is, the distance between the first motor 84a housed in the motor chamber 66 and the rotary cleaning element 82 housed in the rotary cleaning element chamber 64 is maintained constant.

Specifically, as shown in fig. 9 and the like, a rotation shaft support hole 66g for taking out a rotation shaft 84e of the first motor 84a is formed in an end surface constituting the motor chamber 66 by attaching the housing member 66 b. The rotation shaft support hole 66g is formed as a substantially circular hole, and is formed by aligning arcuate (substantially semicircular in the present embodiment) cutouts formed on the motor disposition portion 66a side and the motor side lid portion 66c side of the housing member 66b, respectively. Further, a cleaning element support hole 66h into which a groove 82f provided at an end of the rotary cleaning element 82 is fitted is provided in an end face constituting the rotary cleaning element chamber 64. The cleaning element support hole 66h is formed as a substantially circular hole, and is formed by aligning arcuate (substantially semicircular in the present embodiment) cutouts formed in the lower case 60b side and the cleaning element side cover 66d side of the case member 66b, respectively. Since the housing member 66b is a member in which the motor-side cover 66c and the cleaning-body-side cover 66d are integrally provided, the interval between the rotation-shaft support hole 66g and the cleaning-body support hole 66h can be kept substantially constant. Therefore, the distance between the first motor 84a and the rotary cleaning element 82 accommodated in the rotary cleaning element chamber 64 can be maintained constant.

As shown in fig. 3, 7, and the like, the striking portion housing portion 68 is a space for housing a drive source of a striking portion 90 described later in detail. The striking portion housing portion 68 is provided on the front side of the rotary cleaning body chamber 64, similarly to the motor chamber 66. That is, the striking section housing section 68 is provided at a position opposite to the suction chamber 62 with respect to the rotary cleaning element chamber 64 in the short-side direction of the housing 60. The striking portion housing portion 68 is disposed at a substantially central portion in the longitudinal direction of the case 60. Therefore, the striking portion housing portion 68 is disposed on the front side of the casing 60 so as to be aligned in the left-right width direction of the casing 60 with respect to the motor chamber 66.

As shown in fig. 5, the pipe portion 70 is a tubular portion rotatably connected to the housing 60 in the communication portion 65. The tube portion 70 includes a horizontal tube portion 70a and a vertical tube portion 70 b. The cross tube portion 70a is a tubular portion closed at both ends. The horizontal tube portion 70a is provided with a rotary shaft 72a projecting outward in the axial direction from the closed portions at both ends at the axial center position. Further, the lateral tube portion 70a is provided with an opening on its peripheral portion. The vertical tube portion 70b is a tubular portion connected to the peripheral portion of the horizontal tube portion 70a at a substantially central portion in the axial direction of the horizontal tube portion 70 a. One end side (upper end side in the present embodiment) of the vertical pipe portion 70b is provided as a free end and is provided to be connectable to the main body 10 side of the electric vacuum cleaner 1. The other end side of the vertical pipe portion 70b communicates with the horizontal pipe portion 70 a.

The pipe portion 70 is in a state in which the horizontal pipe portion 70a is disposed at the portion of the communication portion 65 formed on the lower case 60b side where the curved surface 65a is formed, and the rotation shaft 72a is fitted into the support portions 65b, and thereafter, the upper case 60a is covered and integrated with the lower case 60b, thereby being supported rotatably with the rotation shaft 72a as a support shaft. Further, in the lower case 60b, an arc-shaped recess 65c is provided at a position corresponding to a substantially central portion in the left-right direction of the case 60 on the rear side (rear side) of the portion where the curved surface 65a is formed. The curvature of the concave portion 65c corresponds to the curvature of the outer surface of the vertical pipe portion 70 b. Therefore, the concave portion 65c can support the vertical pipe portion 70b when the vertical pipe portion 70b is in a posture of 90 degrees inclination.

The housing 60 is provided with an opening portion for communicating the inside with the outside. The opening is provided at a predetermined position (a position different from the side portion of the case 60) other than the side portion of the case 60, and is shown as a first opening 72 in fig. 3, 5, and the like, for example. In the present embodiment, the gap provided between the pipe portion 70 and the lower case 60b is provided as the first opening portion 72. The rear side of the first opening 72 is opened by the recess 65c, so that air easily flows in.

The second opening 74 is an opening for communicating the inside of the housing 60 with the rotary cleaning element chamber 64. As described above, in the present embodiment, the opening 64e provided in the peripheral surface 64d of the rotary cleaning element chamber 64 is defined as the second opening 74. The second opening 74 (opening 64e) is connected to a motor chamber flow passage that is formed inside the motor chamber 66 and that can be ventilated inside the housing 60, and the inside of the housing 60 communicates with the rotary cleaning element chamber 64.

As shown in fig. 10, the rotary cleaning unit 80 includes a rotary cleaning element 82 and a drive transmission mechanism 84. The rotary cleaning unit 80 is configured to rotationally drive the rotary cleaning element 82 by transmitting power to the rotary cleaning element 82 via the drive transmission mechanism 84, thereby scraping or scraping off dust adhering to an object to be cleaned.

As shown in fig. 4, 9, and the like, the rotary cleaning element 82 is rotatably housed inside the rotary cleaning element chamber 64. Specifically, the rotary cleaning element 82 includes a cleaning element body 82a extending in the axial direction and a first mounting element 82x of a mounting portion 82 b. The rotary cleaning element 82 is accommodated in the rotary cleaning element chamber 64 with its axis line directed in the longitudinal direction (left-right direction) of the housing 60, and is rotatably supported via the mounting portion 82 b.

The rotary cleaning element 82 is configured to: a brush attachment portion 82c is provided on the outer side of the cleaning element main body 82a formed in a cylindrical shape, and a groove portion 82d is provided between the

brush attachment portions

82c, 82c adjacent in the circumferential direction. The brush attachment portion 82c and the groove portion 82d can be provided substantially linearly in the axial direction of the cleaning element main body 82a, for example, but in the present embodiment, are provided so that the axial position of the cleaning element main body 82a is drawn as a spiral around the outer periphery of the cleaning element main body 82 a. The brush attachment portion 82c is formed in a rail shape, and is provided so as to be capable of sandwiching and holding the brush 82h in a state of protruding to the outside of the cleaning element body 82 a.

The mounting portion 82b is a portion for mounting the rotary cleaning element 82 to the housing 60. The attachment portions 82b are provided on one side and the other side in the longitudinal direction of the cleaning element body 82 a. The mounting portion 82b includes a first mounting body 82x and a second mounting body 82 y. The first attachment body 82x is fixed to an end of the cleaning body main body 82 a. The second mounting body 82y is provided on a driven pulley 84d described later and is disposed on the housing 60 (lower housing 60b) side. The first mounting body 82x and the second mounting body 82y are provided so as to be able to be coupled and decoupled in the axial direction.

The first mounting body 82x includes a mounting recess 82e and a first flange 82 i. The mounting recess 82e is formed in a concave shape on an end surface of the mounting portion 82 b. The mounting recess 82e may have any shape, and is provided in a cross shape in the present embodiment. The mounting concave portion 82e is a portion into which a mounting convex portion 82j of a second mounting body 82y described later can be fitted and engaged. The first flange 82i is provided at an end of the first mounting body 82x (an end on the second mounting body 82y side) so as to project outward in the radial direction. The first flange portion 82i is supported by the stepped engagement portion 64i so as to cover the axially outer side.

The second mounting body 82y has a mounting convex portion 82j and a second flange portion 82 k. The mounting projection 82j is configured to: the end of the second mounting body 82y protrudes in the axial direction and is engageable with the mounting recess 82 e. The mounting convex portion 82j may have any shape, and in the present embodiment, it is provided in a cross shape as in the mounting concave portion 82 e. The second flange 82k is provided at an end of the second mounting body 82y (end on the first mounting body 82x side) so as to project outward in the radial direction.

As shown in fig. 8, a groove 82f is formed in the second mounting body 82y, and the groove 82f is provided in an intermediate portion of the mounting portion 82b (second mounting body 82 y). Specifically, the groove 82f is located between the first flange 82i and the second flange 82 k. The groove 82f is provided substantially over the entire circumference of the mounting portion 82b (second mounting body 82 y).

As shown in fig. 8, the groove 82f is located further toward the axial end of the rotary cleaning element 82 than the second flange 82k, and the groove 82f of the second attachment element 82y is supported by the cleaning element support hole 66 h. The attachment projection 82j is located on the rotary cleaning element chamber 64 side with respect to the cleaning element support hole 66h and is exposed to the rotary cleaning element chamber 64. Specifically, the radial side of the mounting projection 82j is in an opposing relationship with the notch 64c of the rotating cleaning element chamber 64.

As shown in fig. 10, a drive transmission mechanism 84 is connected to one of the longitudinal end portions of the rotary cleaning element 82 so as to be capable of transmitting power. Therefore, the rotary cleaning element 82 is provided to be drivable by receiving the power output from the drive transmission mechanism 84. The drive transmission mechanism 84 includes a first motor 84a, a power transmission body 84b, an output-side pulley 84c, a driven-side pulley 84d, and the like.

The first motor 84a is a motor that generates a driving force for driving the rotating cleaning element 82. The first motor 84a is constituted by a motor or the like provided in the housing 60. The first motor 84a is disposed in a posture in which the axial direction thereof is oriented in the longitudinal direction (left-right direction) of the housing 60, and is housed in the motor chamber 66. Further, as described above, the first electric motor 84a has the protruding portion 84f protruding radially outward at the axial direction intermediate portion. When the first motor 84a is housed in the motor chamber 66, the projection 84f comes into contact with the inner peripheral surface of the motor chamber 66. Thus, the interior of the motor chamber 66 is divided into a first region 66x formed on the longitudinal center side of the casing 60 and a second region 66y on the longitudinal outer side. The first motor 84a has a first ventilation opening 84g and a second ventilation opening 84h in a portion housed on the first region 66x side and a portion housed on the second region 66y side, respectively. Thus, the first motor 84a can discharge, for example, air taken into the first motor 84a through the first ventilation opening 84g through the second ventilation opening 84 h.

The power transmission body 84b is constituted by a toothed endless belt. The output-side pulley 84c is a toothed pulley attached to a rotating shaft 84e of a motor forming the first motor 84 a. The driven pulley 84d is integrally provided on the second mounting body 82y of the mounting portion 82b to which the rotary cleaning body 82 is connected. The drive transmission mechanism 84 is provided with the following configuration: that is, the power transmission body 84b formed of an endless belt is wound around the output-side pulley 84c and the driven-side pulley 84 d. Therefore, by operating the first motor 84a, the rotational power can be transmitted to the mounting portion 82b side, and the rotary cleaning element 82 can be rotationally driven in the suction space of the housing 60. The driven pulley 84d is rotatably attached to a shaft portion (not shown), and a bearing member 63a is provided, and the bearing member 63a is attached to the shaft portion so that a part thereof is enclosed by the driven pulley 84d and is fixed to the lower case 60 b. The driven pulley 84d may be provided to be rotatable with respect to the shaft portion, or the driven pulley 84d and the shaft portion may be provided to be rotatable with respect to the bearing member 63 a. A bearing member 63b is provided at an end of the first motor 84a, and the bearing member 63b rotatably supports the rotary shaft 84e and is fixed to the lower case 60 b.

As shown in fig. 3, the striking section 90 includes a second motor 94a different from the first motor 84 a. As shown in fig. 4, the striking section 90 includes a striking member 94b and the like in addition to the second motor 94 a. The striking section 90 transmits vibration generated by operating the second motor 94a to an object to be cleaned (for example, a bed clothes) via the striking member 94b, and performs an operation of striking the surface of the object to be cleaned. The striking portion 90 is provided on the front side with respect to the rotating cleaning element chamber 64. The striking portion 90 is provided adjacent to the motor chamber 66 including the first motor 84a and substantially at the center in the longitudinal direction (left-right direction) of the housing 60.

The second motor 94a is housed in a motor case 94 c. The second motor 94a is housed in the motor case 94c with its rotation axis directed in the longitudinal direction of the housing 60. The rotating shaft of the second motor 94a is connected to a circular plate 94g inside the motor case 94 c. The rotation shaft of the second motor 94a is connected to a position (eccentric position) offset from the center of the circular plate 94 g. Further, the second motor 94a is arranged not to move in the up-down direction in the lower case 60 b. Thus, the outer peripheral surface of the circular plate is disposed inside the motor case 94c so as to be in contact with the top surface of the motor case 94 c. Further, the motor case 94c is provided to be movable up and down. Therefore, by operating the second motor 94a and eccentrically rotating a circular plate connected to the rotating shaft, the motor case 94c can be vibrated in the vertical direction.

The striking member 94b is disposed so as to be exposed to the bottom surface of the housing 60. Specifically, the housing 60 is provided on the bottom surface thereof with a striking portion housing 68 formed of a recess having a depth equal to or greater than the thickness of the striking member 94b on the front side. The striking member 94b is disposed in the striking-portion housing portion 68 so as to extend in the longitudinal direction (left-right direction) of the housing 60.

As shown in fig. 4, the striking member 94b is formed in a bilaterally symmetrical shape such that the handles of the two quilt patters are joined to each other when viewed from above. The striking member 94b is formed to be wider as it extends toward the end, and is formed with a plurality of opening portions 94 d. A portion on the center side of the striking member 94b is provided as a support portion 94 f. The vicinity of the support portion 94f functions like a quilt beater. Therefore, the striking member 94b is configured to: by vibrating up and down near the support portion 94f, a large striking force can be exerted on the end of the striking member 94 b.

The striking section 90 is configured to connect the motor case 94c to the support section 94f of the striking member 94b or the vicinity thereof. Therefore, the striking section 90 transmits the vibration in the vertical direction generated by the operation of the second motor 94a, and operates the striking member 94b to exert the striking force, thereby obtaining the effect of floating the dust on the surface side of the object to be cleaned.

Concerning the air flow generated in the suction port body 50

As described above, the suction port body 50 includes the first opening 72, the second opening 74, and the like in addition to the tube portion 70 through which the suctioned dust passes. The suction port body 50 generates an air flow passing through the inside of the casing 60 through the first opening 72 and the second opening 74, and can suppress heat generation of the first motor 84a and the second motor 94a built in the casing 60 or discharge heat generated by these motors to the outside of the casing 60. The air flow formed in the suction port body 50 will be described in more detail below.

As shown by the arrow in fig. 3, the suction port body 50 has a first opening 72 formed by a gap formed between the pipe portion 70 and the lower case 60b on the rear side (back surface side). The suction port body 50 has a second opening 74 formed by an opening 64e formed in a portion constituting the rotary cleaning body chamber 64. Here, the rotary cleaning element chamber 64 is located on the front side of the suction chamber 62 and communicates with the suction chamber 62. The communication portion 65 is a space communicating with the pipe portion 70. Therefore, when the electric vacuum cleaner 1 is operated, negative pressure generated by the flow of air sucked by the fan motor 15 acts on the pipe portion 70, the communication portion 65, the suction port 62a, the suction chamber 62, and the rotating cleaning body chamber 64 (the second opening portion 74). Therefore, when the electric vacuum cleaner 1 is operated, an airflow substantially from the first opening 72 to the second opening 74 is formed in the suction port body 50.

Here, the suction port body 50 includes a housing member 66b constituting a motor chamber 66, and the motor chamber 66 accommodates the first motor 84a in the housing 60. Further, the housing member 66b has: an inflow side opening 66e that opens toward the striking portion 90 side where the second motor 94a is present, and a discharge side opening 66f that is formed so as to communicate with the second opening 74. Here, the interior of the housing member 66b is divided into two regions, a first region 66x and a second region 66y, via a protruding portion 84f of the first motor 84 a. However, the first motor 84a is provided with a first ventilation opening 84g and a second ventilation opening 84h on the circumferential surface thereof, and ventilation can be performed through these openings by a path that bypasses the inside of the first motor 84 a. Therefore, in the case member 66b, the airflow that flows into the first region 66x from the inflow-side opening 66e can pass through a path that bypasses the inside of the first motor 84a via the first ventilation opening 84g and the second ventilation opening 84h, and can reach the second region 66 y. In the case member 66b, the airflow reaching the second region 66y can reach the rotating cleaning element chamber 64 through the discharge-side opening 66f and the second opening 74.

As described above, the flow passage through which the airflow can pass is formed inside the motor chamber 66 in the suction port body 50. The motor chamber 66 communicates with the rotating cleaning body chamber 64 to which the negative pressure generated by the fan motor 15 acts, via the discharge-side opening 66f and the second opening 74. Therefore, in the interior of the suction port body 50, the airflow introduced from the first opening 72 flows as follows: that is, the fluid flows from the striking portion 90 side (second motor portion 94a) toward the motor chamber 66, and flows from the second opening 74 into the rotary cleaning body chamber 64 through the inflow side opening 66e and the discharge side opening 66f provided in the side surface of the motor chamber 66.

About modification

A modification of the electric vacuum cleaner 1 and the suction port body 50 according to the present embodiment will be described below. In the following description, the same components as those in the above-described embodiments will be omitted and will be described with the same reference numerals.

"modification example 1

The suction port body 50 illustrated in the above embodiment includes the second motor 94a for driving the striking section 90 in addition to the first motor 84a, and is configured to be able to suppress cooling and temperature rise not only for the first motor 84a but also for the second motor 94a, but may be configured in other configurations, for example. Specifically, the suction port body 50 may not include the hitting portion 90 and the second motor 94a for driving the hitting portion 90.

With such a configuration, since the number of components that become heat generation sources in the casing 60 is reduced or the internal structure of the casing 60 is simplified, the cooling effect and the temperature increase suppression effect of the first electric motor 84a can be further improved. In this case, the motor arrangement portion 66a may be provided on the rear side of the suction chamber 62, and the first motor 84a may be arranged, so that the shape of the housing member 66b may be changed accordingly. That is, the shape may be changed so that the front-rear relationship between the motor-side cover 66c and the cleaning body-side cover 66d is reversed in accordance with the change in the arrangement of the first motor 84 a. More specifically, after the motor-side cover 66c extends over the suction chamber 62, the cleaning-body-side cover 66d extends over the suction chamber 62 to close the notch 64 c. The second opening 74 can be provided on the suction chamber 62 side of the rotating cleaning body chamber 64, and the discharge-side opening 66f can be provided on the rotating cleaning body chamber 64 side of the motor-side cover 66 c.

"modification example two

In the first modification, the motor arrangement portion 66a is provided on the rear side of the suction chamber 62, the first motor 84a is disposed, and the rotary cleaning element chamber 64 and the housing member 66b are configured to communicate with each other. The second modification is different from the first modification in that: instead of the rotary cleaning element chamber 64 communicating with the housing member 66b, the suction chamber 62 communicates with the housing member 66 b. Specifically, instead of providing the second opening 74 in the rotating cleaning element chamber 64, the configuration is such that: the suction chamber 62 is provided with a hole portion communicating with the discharge-side opening 66f on the second region 66y side of the motor-side cover 66c, and the cleaning-body-side cover 66d extends over the suction chamber 62 to close the notch 64 c. Here, the shape and size of the hole provided in the suction chamber 62 may be appropriately adjusted. Instead of the first opening 72, a first opening may be provided on the rear side of the lower case 60b, and the inlet side opening 66e may be provided on the motor side lid 66c at a position on the first region 66x side so as to face the first opening.

"modification example three

In the above embodiment, the first opening 72 is formed between the tube 70 and the housing 60, but an opening may be formed in addition to the first opening 72 or in place of the first opening 72. Specifically, for example, as shown in the upper left area of fig. 11, the suction port body 50 of the electric vacuum cleaner 1 is provided with one or more (in the present modification, a plurality of) openings 100 provided on the bottom surface of the housing so as to communicate the inside and the outside of the housing, in place of the first opening 72 or in addition to the first opening 72.

When the opening 100 is provided near the first motor 84a as shown in fig. 11, the airflow introduced from the opening 100 can be expected to flow through the following path: that is, as shown by the arrow in the figure, the fluid flows from the first motor 84a toward the striking part 90, enters the motor chamber 66 through the inflow opening 66e, and then enters the rotating cleaning body chamber 64 through the discharge opening 66 f. It is also expected that the air flowing into the rotating cleaning element chamber 64 flows along a path of being sucked to the main body 10 side after passing through the suction chamber 62, the communication portion 65, and the pipe portion 70. By forming the airflow as described above, effects such as an effect of suppressing an increase in the internal ambient temperature of the casing 60, an effect of cooling the first motor 84a and the second motor 94a of the striking section 90, and an effect of suppressing an increase in temperature can be expected.

In addition, when the opening 100 or the like is provided, another configuration may be added in order to more reliably introduce the airflow into the casing 60 through the opening 100. Specifically, as shown in fig. 12, for example, a guide groove 110 may be formed, and the guide groove 110 may function as a passage for guiding the passage from the outer peripheral side (front side in the present embodiment) of the housing 60 toward the region where the opening 100 is formed (the striking portion housing 68 in the present embodiment). With the above configuration, the airflow is formed so as to be guided by the guide groove 110 on the bottom surface (bottom portion) of the suction port body 50 and to face the opening 100 of the guide groove 110, and the airflow can be more reliably introduced into the casing 60 through the opening 100. Here, the guide groove 110 that is open on the bottom side of the housing 60 is used, but instead of the guide groove 110, an opening that is closed on the bottom side of the housing 60 may be formed so as to communicate with the opening 100. A filter for preventing dust from entering may be provided in the opening and the opening 100.

"modification example four

The above embodiments show: the filter 64f is provided in the opening 64e provided in the rotating cleaning element chamber 64, and the filter 64f is provided in a position where the brush 82h of the rotating cleaning element 82 contacts, whereby the filter 64f can be cleaned by the rotating cleaning element 82. For example, the filter 64f may be the following: that is, the filter 64f is switched to the contact state or the non-contact state depending on the rotational position by changing the projecting amount of the plurality of brushes 82h of the rotary cleaning element 82, and the contact state of the rotary cleaning element 82 is changed depending on the rotational position of the rotary cleaning element 82. The filter 64f may be configured to abut against the rotary cleaning element 82 regardless of the rotational position of the rotary cleaning element 82.

In the above embodiment, the filter 64f is provided in the opening 64e provided in the rotating cleaning body chamber 64, but the filter 64f may be provided in a portion where the housing member 66b communicates with the rotating cleaning body chamber 64, and for example, the filter 64f may be provided in the discharge side opening 66f on the housing member 66b side. In the case of this configuration, the filter 64f may be harder to clean by the rotation of the rotary cleaning element 82 than in the case of the above-described embodiment, and it is preferable to additionally provide another configuration capable of cleaning the filter 64 f.

Fifth modification example

In the above-described embodiment, the example in which the internal space of the motor chamber 66 is divided into the first region 66x and the second region 66y by the protruding portion 84f provided at the axial direction intermediate portion of the first motor 84a has been described, but the motor chamber 66 may be configured not as described above but as a space communicating substantially entirely. In the case where the motor chamber 66 is not divided into the first and

second regions

66x and 66y, the inflow opening 66e can be provided at an appropriate position not only on the surface of the motor-side cover 66c in the axial direction but also at a position that can communicate with the rotary cleaning body chamber 64.

"modification example six

In the above embodiment, the suction port body 50 is configured to be provided separately and independently from the rotary cleaning body chamber 64 (housing chamber) and the suction chamber 62 (housing chamber), but the present invention is not limited thereto. Specifically, the suction port body 50 may be configured such that the rotary cleaning element 82 is provided in the suction chamber 62 (housing chamber) having the suction port 62a without distinguishing the rotary cleaning element chamber 64 from the suction chamber 62. With this configuration, it is not necessary to provide two spaces, i.e., the rotary cleaning element chamber 64 and the suction chamber 62, in the housing 60, respectively, and the configuration of the housing 60 can be simplified accordingly.

Seventh modification

The above embodiment exemplifies the following configuration: that is, as illustrated in fig. 9, the first motor 84a disposed in advance on the motor disposition portion 66a can be covered by covering the housing member 66b on the lower case 60b, and the rotating shaft 84e of the first motor 84a and the second attachment portion 82y constituting the attachment portion 82b of the rotating cleaning element 82 can be supported. For example, as shown in fig. 13, a drive unit 120 may be provided in which the first motor 84a and the second attachment body 82y (drive transmission mechanism 84) are unitized, and the first motor 84a and the second attachment body 82y (drive transmission mechanism 84) may be attached by incorporating the drive unit 120 into the lower case 60 b. Although not shown, a retaining member is provided at each of the axial end portions of the first motor 84a and the second mounting body 82y to prevent the output-side pulley 84c and the driven-side pulley 84d from being removed from the axial portions. In the case of this configuration, the rotary cleaning element 82 is provided to the drive unit 120 by inserting and connecting the rotary cleaning element 82 to the second attachment element 82y of the drive unit 120 incorporated in the lower case 60b as indicated by an arrow in the figure.

The driving unit 120 is similar to the above-described embodiment in that it includes the motor-side cover portion 120c and the cleaning body-side cover portion 120d, and the gap 64c is closed by the cleaning body-side cover portion 120 d. The motor-side cover portion 120c of the drive unit 120 has a rotation shaft support hole 66g, not shown, and the cleaning body-side cover portion 120d has a cleaning body support hole 66h, not shown, that supports the groove 82f of the driven-side pulley 84 d. Although not shown, the driving unit 120 may be configured as an upper unit case and a lower unit case so as to vertically separate the rotation shaft supporting hole 66g and the cleaning element supporting hole 66 h. Alternatively, a slit for guiding the rotary shaft 84e of the first motor 84a to the rotary shaft support hole 66g may be provided in the motor side cover portion 120c, and a slit for guiding the driven side pulley 84d to the cleaning body support hole 66h may be provided in the cleaning body side cover portion 120 d.

According to the above configuration, the first motor 84a and the mounting portion 82b can be unitized and integrally assembled into the lower casing 60b, and therefore, the assembly operation of the suction port body 50 can be made efficient.

Although the respective modifications have been described above, it is needless to say that the modifications may be combined with each other so as not to cause technical incongruity. In particular, in the seventh modification, the inflow opening 66e, the discharge opening 66f, and the filter 64f are not essential, and the inflow opening 66e, the discharge opening 66f, and the filter 64f may be provided in the motor-side cover 120c as in the above embodiment.

Summary of composition and Effect

Hereinafter, the relationship between the structure of the electric vacuum cleaner 1 and the suction port body 50 and the effects obtained by the structure will be summarized as follows, based on the above-described embodiment and modification of the electric vacuum cleaner 1 and the suction port body 50.

(a-1) As shown in the above embodiment, the suction port body 50 of the electric vacuum cleaner 1 is characterized in that: a housing 60 having a space therein and a rotary cleaning element 82 rotatably provided in the housing 60; the housing 60 has a suction chamber 62, a rotary cleaning element chamber 64, a first motor 84a, a first opening 72, and a second opening 74; wherein the suction chamber 62 has a suction port 62a capable of sucking dust; the rotary cleaning element chamber 64 is open to the front and the outside with respect to the suction port 62a, and the rotary cleaning element 82 is disposed; the first motor 84a is disposed inside the space so as to be aligned in a direction intersecting the axial direction of the rotating cleaning element 82 with respect to the rotating cleaning element chamber 64, and generates a driving force for driving the rotating cleaning element 82; the first opening portion 72 is provided at a position other than the side portion of the housing 60 (other than the side portion of the housing 60), and communicates the inside and the outside of the housing 60; the second opening 74 communicates the inside of the housing 60 with the rotary cleaning element chamber 64.

As described in (a-1) above, the suction port body 50 of the electric vacuum cleaner 1 includes: a first opening 72 for communicating the inside and outside of the housing 60 for housing the first motor 84a, and a second opening 74 for communicating the inside of the housing 60 with the rotary cleaning body chamber 64. The rotary cleaning element chamber 64 is open to the front and the outside with respect to the suction port 62 a. The suction chamber 62, the rotating cleaning element chamber 64, and the first motor 84a are arranged in a front-rear direction of the housing 60 (a direction intersecting the axial direction of the rotating cleaning element 82). Therefore, when the vacuum cleaner 1 is operated to generate suction force with the suction port 62a facing the object to be cleaned, an airflow that flows into the housing 60 from the first opening 72 and reaches the suction chamber 62 via the rotating cleaning body chamber 64 is generated. Therefore, according to the suction port body 50 of the electric vacuum cleaner 1, the first motor 84a in the casing 60 can be efficiently cooled or the temperature increase thereof can be suppressed.

(a-2) As shown in the above-mentioned embodiment, the suction port body 50 of the electric vacuum cleaner 1 shown in (a-1) may be configured to include the pipe portion 70, and the first opening portion 72 may be provided between the pipe portion 70 and the housing 60, wherein the pipe portion 70 is rotatably connected to the housing 60 at a rear side of the suction port 62a and communicates with the suction chamber 62.

With the configuration described in (a-2), the airflow introduced into the suction port body 50 from the first opening 72 provided between the pipe portion 70 and the casing 60 can be made to flow smoothly from the rear toward the front inside the casing 60. This can reduce the internal ambient temperature of the casing 60, and improve the cooling effect and temperature increase suppression effect of the first electric motor 84a incorporated in the casing 60.

(a-3) As a modification, for example, as described above, in the suction port body 50 of the electric vacuum cleaner 1 shown in (a-1), the first opening portion may be provided so as to open at the bottom surface of the housing 60.

With the configuration described in (a-3), the first motor 84a and the like can be effectively cooled or temperature rise thereof can be suppressed by the airflow introduced into the main body case from the first opening portion.

(a-4) As in the above-described embodiment, the suction port body 50 of the electric vacuum cleaner 1 described in any one of (a-1) to (a-3) above may be configured such that: the motor chamber 66 is provided with a motor chamber 66 that houses a first motor 84a inside the housing 60, and the motor chamber 66 includes an inflow side opening 66e that opens in a direction away from a position facing the rotating cleaning body chamber 64, and a discharge side opening 66f that is provided as the second opening 74 so as to open toward the rotating cleaning body chamber 64.

With the configuration described in (a-4), the suction port body 50 can enhance the likelihood that the airflow introduced into the casing 60 flows through the motor chamber 66 to the path of the rotating cleaning body chamber 64, and can enhance the cooling effect and the temperature increase suppression effect on the first motor 84 a.

(a-5) As in the above-mentioned embodiment, the suction port body 50 of the electric vacuum cleaner 1 described in any one of (a-1) to (a-4) above may be: the rotary cleaning element 82 includes a cleaning element body 82a (shaft portion) and a brush 82h (cleaning element) provided to project in a direction intersecting the axial direction of the cleaning element body 82a, and the filter 64f in contact with the brush 82h is provided in the second opening 74.

Since the configuration is as described in (a-5) above, the rotary cleaning element 82 rotating in the rotary cleaning element chamber 64 can be effectively used for cleaning the filter 64f also in the suction port body 50. In most occasions when the electric vacuum cleaner 1 is used, the filter 64f is always kept clean because the cleaning body 82 is rotated and operated.

(a-6) As in the above-mentioned embodiment, the suction port body 50 of the electric vacuum cleaner 1 described in any one of (a-1) to (a-4) above may be: a second motor 94a provided inside the housing 60 separately from the first motor 84a, and a striking part 90 provided on the front side of the rotating cleaning body chamber 64 and transmitting the vibration of the second motor 94a to the object to be cleaned; the second motors 94a are arranged in the space in a direction intersecting the axial direction of the rotary cleaning element 82 with respect to the rotary cleaning element chamber 64.

With the above-described configuration (a-6), the configuration of the suction port body 50 can be made compact in the front-rear direction, as compared with the case where the first motor 84a and the second motor 94a are arranged in the front-rear direction with the rotary cleaning body chamber 64 interposed therebetween in the housing 60. Further, by arranging the first motor 84a and the second motor 94a in the longitudinal direction on the front side of the housing 60, the first motor 84a and the second motor 94a can be cooled intensively by the airflow reaching the front side from the rear side.

(a-7) As a modification, for example, as described above, the suction port body 50 of the electric vacuum cleaner 1 shown in (a-3) above may be: the cleaning device includes a second motor 94a provided in the housing 60 separately from the first motor 84a, a striking part 90 provided on the front side of the rotating cleaning element chamber 64 and transmitting the vibration of the second motor 94a to the cleaning object, and a striking part housing part 68 housing the striking part 90 and provided with a first opening 100.

According to the configuration of (a-7) described above, the cooling effect and the temperature increase suppressing effect of the first electric motor 84a and the second electric motor 94a can be expected by the airflow introduced into the case 60 from the first opening portion 100 provided in the striking-portion housing portion 68.

(a-8) As a modification, for example, as described above, the suction port body 50 of the electric vacuum cleaner 1 shown in (a-7) above may be: an opening (first opening 100) is provided on the front side of the housing 60 so as to open toward the bottom surface of the housing 60, and the striking portion housing 68 communicates the inside and the outside of the housing 60 via the opening (first opening 100).

According to the configuration of (a-8) described above, the airflow is introduced into the housing 60 through the opening (first opening 100), and the first motor 84a and the second motor 94a can be cooled or prevented from being heated.

(b) As described in the above embodiment, the suction port body 50 of the electric vacuum cleaner 1 is characterized by including the housing 60 having a space therein and the rotary cleaning element 82 rotatably provided in the housing 60; the housing 60 has a suction chamber 62, a rotary cleaning body chamber 64, a first motor 84a, a first opening 72, and a second opening 74, wherein the suction chamber 62 has a suction port 62a capable of sucking dust, the rotary cleaning body chamber 64 is open to the front and outside with respect to the suction port 62a, and the rotary cleaning body 82 is disposed, the first motor 84a is disposed inside the space with respect to the rotary cleaning body chamber 64 in a direction intersecting the axial direction of the rotary cleaning body 82, and generates a driving force for driving the rotary cleaning body 82, the first opening 72 communicates the inside and the outside of the housing 60, and the second opening 74 communicates the inside and the rotary cleaning body chamber 64 of the housing 60; the rotary cleaning element 82 includes a cleaning element body 82a and a brush 82h projecting in a direction intersecting the axial direction of the cleaning element body 82 a; the filter 64f abutting against the brush 82h is provided in the second opening 74.

Since the suction port body 50 of the electric vacuum cleaner 1 of the present embodiment is configured as described in (b), the air flow can be introduced into the interior of the housing 60 through the first opening 72 and discharged to the outside through the second opening 74. The suction port body 50 can effectively cool the first motor 84a or suppress the temperature rise thereof by such an air flow.

The rotary cleaning element 82 that rotates in the rotary cleaning element chamber 64 can be brought into contact with the filter 64f provided in the second opening 74 as described above. Therefore, according to the configuration as described in (b), the rotary cleaning element 82 can be effectively used for cleaning the filter 64 f. In most occasions when the electric vacuum cleaner 1 is used, the cleaning body 82 is rotated and operated, so that the filter 64f can be always kept clean.

(c) As described in the above embodiment, the suction port body 50 of the electric vacuum cleaner 1 is characterized in that: a housing 60 having a space therein and a rotary cleaning element 82 rotatably provided in the housing 60; the housing 60 has a suction chamber 62, a rotary cleaning element chamber 64, a first motor 84a, a second motor 94a, a striking section 90, a first opening 72, and a second opening 74; wherein the suction chamber 62 has a suction port 62a capable of sucking dust, the rotary cleaning body chamber 64 is open to the front and the outside with respect to the suction port 62a and the rotary cleaning body 82 is arranged, the first motor 84a is arranged in the space with respect to the rotary cleaning body chamber 64 in a direction intersecting the axial direction of the rotary cleaning body 82 and generates a driving force for driving the rotary cleaning body 82, the second motor 94a is provided separately from the first motor 84a and is arranged in the space formed in the housing 60 in a direction along the axial direction of the rotary cleaning body 82 with respect to the first motor 84a, the striking part 90 is provided on the front side with respect to the rotary cleaning body chamber 64 and transmits the vibration of the second motor 94a to the object to be cleaned, the first opening 72 communicates the inside of the housing 60 with the outside, the second opening 74 communicates the rotary cleaning element chamber 64 with the interior of the housing 60.

Since the suction port body 50 of the electric vacuum cleaner 1 of the present embodiment is configured as described in (c) above, an air flow that flows in through the first opening 72 and is discharged to the outside from the second opening 74 can be formed inside the housing 60. The intake port body 50 can effectively cool the first electric motor 84a and the second electric motor 94a or suppress the temperature rise thereof by the airflow formed inside the casing 60.

As described in (c) above, in the suction port body 50, the first motor 84a provided for driving the rotary cleaning element 82 and the second motor 94a provided for driving the striking element 90 are arranged along the axial direction of the rotary cleaning element. With such an arrangement, the suction port body 50 is formed to be compact in the front-rear direction, compared to a case where the first motor 84a and the second motor 94a are arranged in the front-rear direction in the housing 60 with the rotary cleaning body chamber 64 interposed therebetween. Further, by arranging the first motor 84a and the second motor 94a in the longitudinal direction on the front side of the housing 60, the first motor 84a and the second motor 94a can be cooled intensively by the airflow reaching from the rear side to the front side.

(d) The suction port body 50 of the electric vacuum cleaner 1 exemplified as a modification can be configured as follows: a housing 60 having a space therein and a rotary cleaning element 82 rotatably provided in the housing 60; the housing 60 includes a suction chamber 62, a rotary cleaning body chamber 64, a first motor 84a, a first opening 72, and a second opening 74, wherein the suction chamber 62 has a suction port 62a capable of sucking dust, the rotary cleaning body chamber 64 is open to the front and the outside with respect to the suction port 62a, and the rotary cleaning body 82 is disposed, the first motor 84a is disposed inside the space with respect to the rotary cleaning body chamber 64 so as to be aligned in a direction intersecting the axial direction of the rotary cleaning body 82, and generates a driving force for driving the rotary cleaning body 82, the first opening 72 communicates the inside and the outside of the housing 60, and the second opening 74 communicates the rotary cleaning body chamber 64 with the inside of the housing 60. The first opening 72 is provided forward of the rotary cleaning element chamber 64 and opens toward the bottom surface (bottom) of the housing.

The suction port body 50 having the configuration described in the above (d) can form an airflow flowing between the opening 100 provided to open on the bottom surface (bottom portion) and the second opening 74 in the casing 60. Therefore, according to the above configuration, the first electric motor 84a can be efficiently cooled or the temperature thereof can be suppressed from increasing by the airflow formed inside the case 60.

(e) As described in the above embodiment, the suction port body 50 of the electric vacuum cleaner 1 of the present embodiment is characterized in that: the cleaning device is provided with a housing 60, a rotary cleaning body 82, a storage chamber, a first motor 84a, and a cover part (housing part 66b), wherein the housing 60 has a suction port 62a, the rotary cleaning body 82 is rotatably provided in the housing 60, the storage chamber is provided in the housing 60 and the rotary cleaning body 82 is disposed, the first motor 84a is provided inside the housing 60 and generates a driving force for driving the rotary cleaning body 82, and the cover part (housing part 66b) constitutes a part of the storage chamber and is separate from the storage chamber; the cover covers an end of the rotary cleaning element 82 in the radial direction and rotatably holds the end.

With the configuration described in (e), the lid portion can be used flexibly as a member for forming the storage chamber, and also as a member for positioning and accurately holding the end portion of the rotary cleaning element 82.

Further, with this configuration, it is possible to suppress an increase in the internal ambient temperature of the intake port body 50, and to obtain a cooling effect, a temperature increase suppressing effect, and the like of the first electric motor 84a disposed inside the intake port body 50.

In the above-described embodiment and modification, an example in which the electric vacuum cleaner 1 and the suction port body 50 are used to clean bedclothes and the like has been described, but the present invention is not limited to this, and the same configuration can be applied to a so-called canister type electric vacuum cleaner, a stick type vacuum cleaner, and the like. For example, when the electric vacuum cleaner 1 and the suction port body 50 are used for other purposes than cleaning bedclothes and the like, the striking portion 90 may be omitted, or the frame 64a formed in a mesh shape or the like may not be provided in the opening portion of the rotary cleaning body chamber 64.

Further, the suction port body 50 illustrated in the above embodiment and modification is rotatable only in the front-rear direction, that is, is swingable only about the axial center of the horizontal tube portion 70a constituting the tube portion 70, but may be configured to be, for example: the first pipe material and the second pipe material are connected to each other by using the first pipe material and the second pipe material as the pipe portions, respectively, so that the head can be swung in the left-right direction in addition to the front-back direction, and the head can be swung over the entire circumference by using the pipe portion having the universal joint structure.

(1-1) the suction port body of the electric vacuum cleaner according to the first aspect of the present embodiment is characterized in that: the cleaning device comprises a housing and a rotary cleaning body, wherein the housing is provided with a space inside and a suction port capable of sucking dust, and the rotary cleaning body is rotatably arranged in the housing; the housing has a housing chamber that is open to the outside in the front direction with respect to the suction port and in which the rotary cleaning element is disposed, a motor that is disposed in the interior of the space with respect to the housing chamber so as to be aligned in a direction intersecting the axial direction of the rotary cleaning element and that generates a driving force for driving the rotary cleaning element, a first opening that is provided at a position other than a side portion of the housing and that communicates the interior of the housing with the outside, and a second opening that communicates the interior of the housing with the housing chamber.

(1-2) the suction inlet body of the electric vacuum cleaner may be: a pipe portion rotatably connected to the housing rearward of the suction port and communicating with the storage chamber; the first opening portion is provided between the tube portion and the housing.

(1-3) the suction inlet body of the electric vacuum cleaner may be: the first opening is provided so as to open at the bottom of the housing.

(1-4) the suction inlet body of the electric vacuum cleaner may be: the motor chamber includes an inflow opening that opens in a direction away from a position facing the storage chamber, and a discharge opening that is provided as the second opening and opens toward the storage chamber.

(1-5) the suction inlet body of the electric vacuum cleaner may be: the rotary cleaning element includes a shaft portion and a cleaning element provided to project in a direction intersecting an axial direction of the shaft portion, and a filter in contact with the cleaning element is provided in the second opening portion.

(1-6) the suction inlet body of the electric vacuum cleaner may be: the motor is provided as a first motor, and the suction port body includes a second motor provided inside the housing separately from the first motor, and a striking portion provided on a front side of the housing with respect to the housing chamber and transmitting vibration of the second motor to a cleaning object; the second motor is arranged inside the space in a direction intersecting the axial direction of the rotary cleaning element with respect to the housing chamber.

(1-7) the suction inlet body of the electric vacuum cleaner may be: the motor is provided as a first motor, and the suction port body includes a second motor provided inside the housing separately from the first motor, a striking portion provided on a front side of the housing chamber and transmitting vibration of the second motor to a cleaning object, and a striking portion housing the striking portion and provided with the first opening portion.

(1-8) the suction inlet body of the electric vacuum cleaner may be: an opening provided at a front side of the housing so as to be open toward a cleaning object; the knocking portion accommodating portion communicates the inside and the outside of the housing through the opening portion.

(2) A suction port body of an electric vacuum cleaner according to a second aspect of the present embodiment is characterized in that: the cleaning device includes a housing having a space therein and a suction port capable of sucking dust, and a rotary cleaning body rotatably provided in the housing; the housing has a housing chamber that is open to the outside in the front direction with respect to the suction port and in which the rotary cleaning element is disposed, a motor that is disposed in the space so as to be aligned in a direction intersecting the axial direction of the rotary cleaning element and that generates a driving force for driving the rotary cleaning element, a first opening that communicates the inside of the housing with the outside, and a second opening that communicates the inside of the housing with the housing chamber; the rotary cleaning element includes a shaft portion and a cleaning element protruding in a direction intersecting with an axial direction of the shaft portion; the filter abutting against the cleaning body is provided in the second opening.

(3) A suction port body of an electric vacuum cleaner according to a third aspect of the present embodiment is characterized in that: the cleaning device comprises a housing and a rotary cleaning body, wherein the housing is provided with a space inside and a suction port capable of sucking dust, and the rotary cleaning body is rotatably arranged in the housing; the housing has a housing chamber that is open to the outside in the front direction with respect to the suction port and in which the rotary cleaning body is disposed, a first motor that is disposed inside the space with respect to the housing chamber so as to be aligned in a direction intersecting the axial direction of the rotary cleaning body and generates a driving force for driving the rotary cleaning body, a second motor that is provided separately from the first motor and is disposed inside the space with respect to the first motor so as to be aligned in a direction along the axial direction of the rotary cleaning body, a striking portion that is provided on the front side of the housing chamber and transmits vibration of the second motor to a cleaning object, and a second opening portion that communicates the inside of the housing with the outside, the second opening portion communicates the housing chamber with the interior of the housing.

(4) A suction port body of an electric vacuum cleaner according to a fourth aspect of the present embodiment is characterized in that: the cleaning device comprises a housing and a rotary cleaning body, wherein the housing is provided with a space inside and a suction port capable of sucking dust, and the rotary cleaning body is rotatably arranged in the housing; the housing has a housing chamber that is open to the outside in the front direction with respect to the suction port and in which the rotary cleaning element is disposed, a motor that is disposed in the interior of the space with respect to the housing chamber so as to be aligned in a direction intersecting the axial direction of the rotary cleaning element and that generates a driving force for driving the rotary cleaning element, a first opening that communicates the interior of the housing with the outside, and a second opening that communicates the housing chamber with the interior of the housing; the first opening is provided forward of the storage chamber and opens toward the cleaning object.

(5) A suction port body of an electric vacuum cleaner according to a fifth aspect of the present embodiment is characterized in that: the cleaning device includes a housing having a suction port, a rotary cleaning element rotatably provided in the housing, a housing chamber provided in the housing and in which the rotary cleaning element is disposed, a motor provided in the housing and generating a driving force for driving the rotary cleaning element, and a cover constituting a part of the housing chamber and being separate from the housing chamber; the cover covers an end of the rotary cleaning element in a radial direction and rotatably holds the end.

(6) A suction port body of an electric vacuum cleaner according to a sixth aspect of the present embodiment is characterized by including: the cleaning device includes a housing having a suction port, a rotary cleaning body rotatably provided in the housing, a housing chamber provided in the housing and in which the rotary cleaning body is disposed, a motor provided in the housing and generating a driving force for driving the rotary cleaning body, a drive transmission mechanism, and a support member integrally supporting an output shaft of the motor and a driven-side pulley, wherein the drive transmission mechanism includes an output-side pulley provided on the motor, a driven-side pulley coupled to the rotary cleaning body, and a belt rotatably mounted on the output-side pulley and the driven-side pulley, and transmits the driving force from the motor to the rotary cleaning body.

The present invention is not limited to the configurations described in the above embodiments, and design changes and the like can be appropriately made within a range not departing from the technical spirit of the present invention. The components of the above embodiments and modifications may be arbitrarily selected and combined. In addition, any of the components of the embodiments and modifications may be combined with any of the components described in the means for solving the problem, the mode for carrying out the invention, and the like, or any of the components described in the means for solving the problem, the mode for carrying out the invention, and the like. In this regard, it is also intended to obtain authorization in this application or a divisional application based on this application, and the like.

(availability in industry)

The present invention can be applied to all electric vacuum cleaners.

Claims

1. A suction port body of an electric vacuum cleaner is characterized by comprising:

a housing having a space therein and having a suction port capable of sucking dust; and

a rotary cleaning body rotatably provided in the housing,

the housing has:

a storage chamber which is open to the outside in the front direction with respect to the suction port and in which the rotary cleaning element is arranged;

a motor that is disposed inside the space with respect to the housing chamber so as to be aligned in a direction intersecting with an axial direction of the rotary cleaning element, and that generates a driving force for driving the rotary cleaning element;

a first opening portion that is provided at a position different from a side portion of the housing and that communicates the inside of the housing with the outside; and

and a second opening portion that communicates the inside of the housing with the storage chamber.

2. The suction port body of the electric cleaner as claimed in claim 1,

a pipe portion rotatably connected to the housing rearward of the suction port and communicating with the storage chamber;

the first opening portion is provided between the tube portion and the housing.

3. The suction port body of the electric cleaner as claimed in claim 1,

the first opening is provided so as to open at the bottom of the housing.

4. The suction port body of an electric vacuum cleaner according to any one of claims 1 to 3,

a suction port body of the electric vacuum cleaner has a motor chamber for accommodating the motor in the housing;

the motor chamber includes an inflow side opening portion and a discharge side opening portion,

the inflow opening is opened in a direction away from a position facing the accommodation chamber,

the discharge-side opening is provided as the second opening so as to open toward the storage chamber.

5. The suction port body of an electric vacuum cleaner according to any one of claims 1 to 4,

the rotary cleaning element includes a shaft portion and a cleaning element protruding in a direction intersecting with an axial direction of the shaft portion;

the filter abutting against the cleaning body is provided in the second opening.

6. The suction port body of an electric vacuum cleaner according to any one of claims 1 to 5,

the motor is provided as a first motor, and,

the suction port body of the electric dust collector is provided with a second motor and a knocking part,

the second motor is separately provided from the first motor in addition to the inside of the housing,

the knocking portion is arranged on the front side of the containing chamber and transmits the vibration of the second motor to a cleaning object;

the second motor is arranged inside the space in a direction intersecting the axial direction of the rotary cleaning element with respect to the housing chamber.

7. The suction port body of the electric cleaner as claimed in claim 3,

the motor is provided as a first motor, and,

the suction port body of the electric dust collector is provided with a second motor, a knocking part and a knocking part accommodating part,

the knocking portion storage portion stores the knocking portion and is provided with the first opening portion.

8. The suction port body of the electric cleaner as claimed in claim 7,

an opening provided in the front side of the housing so as to open toward the cleaning object;

the knocking portion accommodating portion communicates the inside and the outside of the housing through the opening portion.

9. An electric vacuum cleaner comprising the suction port body according to any one of claims 1 to 8.