CN112741536A

CN112741536A - Electric vacuum cleaner

Info

Publication number: CN112741536A
Application number: CN202011158279.8A
Authority: CN
Inventors: 德永淳
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2019-10-29
Filing date: 2020-10-26
Publication date: 2021-05-04
Anticipated expiration: 2040-10-26
Also published as: CN112741536B; JP7461729B2; JP2021069481A; JP7223052B2; JP2021100697A

Abstract

The electric vacuum cleaner includes: a driving device including a case housing an electric blower for sucking dust; a dust collecting device detachably mounted on the case to receive the sucked dust and communicating with the electric blower; and a lock mechanism for releasably locking the state of the dust collector mounted on the housing; wherein the locking mechanism comprises: a first locking portion provided outside the case; and a second locking part which is arranged outside the dust collecting device and can be locked and separated from the first locking part; the box body comprises two side surfaces; the lock mechanism is disposed on one of the two side surfaces of the case in a state where the dust collection device is attached to the case.

Description

Electric vacuum cleaner

Technical Field

The present invention relates to an electric vacuum cleaner.

Background

As a conventional electric vacuum cleaner, japanese patent No. 6466176 proposes a stick-type cordless electric vacuum cleaner including a cleaner body having a driving device and a dust collecting device detachably attached to the driving device, wherein a suction port body is connected to the cleaner body via an extension pipe.

In the driving device of the cleaner body, a mounting part for holding the dust collecting device by being horizontally placed is arranged on the upper surface of the electric blower accommodating part. The mounting portion includes a concave fulcrum portion provided on an upper surface of the electric blower housing portion, and a pair of guide portions provided in front of the handle coupling portion.

The dust collecting device comprises a convex clamping part and a locking mechanism.

In this electric vacuum cleaner, when the dust collecting device is mounted on the mounting portion of the driving device, the engaging portion of the dust collecting device is inserted into the fulcrum portion of the mounting portion to be positioned, and the dust collecting device is rotated toward the mounting portion side with the engaging portion as the fulcrum, whereby the pair of retaining portions of the lock mechanism engages with the pair of guide portions to complete the mounting.

Further, when the dust collecting device is detached from the mounting portion, the pair of holding portions can be disengaged from the pair of guide portions by pressing the pair of operation portions of the lock mechanism with fingers while pressing the palm against the dust collecting device in a direction in which the operation portions approach each other, and the dust collecting device can be detached from the mounting portion by pulling up the dust collecting device with the holding portions as fulcrums in this state.

Disclosure of Invention

In the conventional vacuum cleaner, when the dust collecting device is mounted on the mounting portion of the driving device, the engaging portion of the dust collecting device needs to be inserted into the fulcrum portion of the mounting portion to be positioned.

An object of an aspect of the present invention is to provide an electric vacuum cleaner in view of such a situation.

According to an aspect of the present invention, there is provided an electric vacuum cleaner including: a driving device including a case housing an electric blower for sucking dust; a dust collecting device detachably mounted on the case to receive the sucked dust and communicating with the electric blower; and a lock mechanism for releasably locking the state of the dust collector mounted on the housing; wherein

The locking mechanism includes:

a first locking portion provided outside the case; and

a second locking portion which is provided outside the dust collecting device so as to be capable of being locked and separated from the first locking portion;

the box body comprises two side surfaces;

the lock mechanism is disposed on one of the two side surfaces of the case in a state where the dust collection device is attached to the case.

According to the electric vacuum cleaner of one aspect of the present invention, usability when the dust collecting device is detached from the driving device is improved.

Drawings

Fig. 1 is a perspective view showing a first embodiment of an electric vacuum cleaner according to the present invention.

Fig. 2 is a right side view showing the cleaner body of the first embodiment.

Fig. 3 is a front view showing a cleaner body of the first embodiment.

Fig. 4 is a central longitudinal sectional view of the cleaner body of the first embodiment, as viewed from the left side.

Fig. 5 is a bottom view showing the driving device of the first embodiment.

Fig. 6 is a front view showing the driving device of the first embodiment.

Fig. 7 is a diagram illustrating a structure of a first engaging portion on the driving device side and a second engaging portion on the dust collecting device side of the electric vacuum cleaner according to the first embodiment.

Fig. 8 is a diagram illustrating the structure of the outlet port on the driving device side and the inlet port on the dust collecting device side of the electric vacuum cleaner according to the first embodiment.

Fig. 9 is a diagram illustrating a state in which the dust collecting device is detached from the driving device by the right hand in the electric vacuum cleaner according to the first embodiment.

Fig. 10 is a diagram illustrating a state in which the dust collecting device is detached from the drive device with the left hand in the electric vacuum cleaner according to the first embodiment.

Fig. 11 is another view illustrating a state in which the dust collecting device is detached from the driving device with the right hand in the electric vacuum cleaner according to the first embodiment.

Fig. 12 is another view for explaining a state in which the dust collecting device is detached from the drive device with the left hand in the electric vacuum cleaner according to the first embodiment.

Detailed Description

(first embodiment)

< integral construction of electric vacuum cleaner >

As shown in fig. 1, the electric vacuum cleaner 1 is a stick-shaped cordless electric vacuum cleaner 1, which includes a cleaner body 10; a battery 40 detachably mounted on the cleaner body 10; an extension pipe 60 including one end 61a, one end 61a being detachably connected to the cleaner body 10; and a suction port body 70 detachably connected to the other end 61b of the extension pipe 60.

In the electric vacuum cleaner 1 described with reference to fig. 1, the suction port body 70 can be directly connected to the cleaner body 10 without using the extension pipe 60, and can be used as a hand-held type.

Alternatively, a handheld nozzle, not shown, may be attached to the cleaner body 10 and used as a handheld electric cleaner.

The cleaner body 10 includes a driving device 20, and a dust collecting device 30 detachably mounted on the driving device 20. The cleaner body 10 will be described in detail later.

The battery 40 includes a plurality of cells housed within a case.

The extension pipe 60 includes a pipe body 61, and a plurality of not-shown conductive cables provided along the pipe body 61.

The suction port body 70 includes a suction port body 71, a joint portion 72 coupled to the suction port body 71 so as to be rotatable about a first axis in the front-rear direction, and a connection pipe portion 73 coupled to the joint portion 72 so as to be rotatable about a second axis orthogonal to the first axis.

The suction port body 71 includes a case 71a having a suction port (not shown) at the bottom, a rotary brush (not shown) rotatably provided in the case 71a near the suction port, a rotary brush motor (not shown) for rotating the rotary brush, and the like.

In the electric vacuum cleaner 1 in which the cleaner body 10 and the suction port body 70 are connected via the extension pipe 60, an electric wiring system for supplying electric power from the battery 40 to the motor for the rotary brush is provided, and the rotary drive of the rotary brush is controlled by switching a power switch, which will be described later, of the cleaner body 10 ON or OFF. The same applies to the case where the suction port body 70 is directly connected to the cleaner body 10.

< construction of Driving device for vacuum Cleaner noumenon >

Fig. 2 is a right side view showing the cleaner body of the first embodiment, fig. 3 is a front view showing the cleaner body of the first embodiment, and fig. 4 is a central longitudinal sectional view of the cleaner body of the first embodiment as viewed from the left side. Fig. 5 is a bottom view showing the driving device of the first embodiment, and fig. 6 is a front view showing the driving device of the first embodiment. In fig. 2 to 6, the front, rear, left, right, and up-down directions in which the cleaner body 10 (a pipe portion 21d described later) is horizontally viewed from the user by gripping the grip portion 21b are indicated by arrows, and the structure of the cleaner body 10 will be described based on the front, rear, left, and up-down directions.

As shown in fig. 2 to 8, the driving device 20 of the cleaner body 10 includes a case 21, and the case 21 includes an electric blower housing portion 21a housing an electric blower 22 and a circuit board 23 constituting a control portion, a handle portion 21b provided behind the electric blower housing portion 21a, a battery mounting portion 21c provided at a lower end of the electric blower housing portion 21a, and a pipe portion 21d provided in front of an upper portion of the electric blower housing portion 21 a.

The electric blower housing portion 21a of the case 21 is a substantially cylindrical portion including a right side surface 21ar and a left side surface 21al (see fig. 3, 6, 9, 11, and 12).

The electric blower housing portion 21a is provided with a cylindrical air inlet 21aa that opens forward, and a lattice member 21ab (see fig. 4 and 6) is fitted into the air inlet 21 aa. Further, a seal 21ap is provided in the front periphery of the grid member 21ab in the air introduction port 21 aa. (refer to fig. 6).

Further, a locking convex portion 41 (see fig. 2, 3, 5, and 6) as a first locking portion of a first locking mechanism M1 described later is provided in a position near the air inlet 21aa of the right side surface 21ar of the electric blower housing portion 21 a. The first locking mechanism M1 will be described in detail later.

Further, an exhaust port 21ac (see fig. 2 and 4) including a plurality of small holes is provided at a position rearward of the first locking portion 41 on the right side wall of the electric blower housing portion 21 a.

The electric blower 22 is disposed behind the air inlet 21aa in the electric blower housing portion 21a, and is disposed in parallel with and above a rotation axis (not shown) of the electric blower 22 with respect to a center line P passing through the center of the air inlet 21aa (see fig. 4).

The circuit board 23 is disposed behind the electric blower 22. The circuit board 23 may be provided at a position other than the position shown in fig. 4.

The grip portion 21b includes an upper end portion 21ba extending rearward from an upper portion of the electric blower housing portion 21a, a lower end portion 21bb extending rearward from a lower portion of the electric blower housing portion 21a, and a grip portion 21bc connecting the upper end portion 21ba and the lower end portion 21 bb.

Since the lower end portion 21bb protrudes rearward from the upper end portion 21ba, the grip portion 21bc connecting these portions is inclined forward from the lower end portion 21bb side toward the upper end portion 21ba side.

The grip portion 21bc is provided with a grip sensor 21bs for detecting the fingers of the hand of the user gripping the grip portion 21bc and outputting a detection signal to the control portion.

The grip sensor 21bs includes an integrated light emitting element and light receiving element (not shown). The grip sensor 21bs is configured to emit light toward the finger light emitting element of the hand of the user gripping the grip portion 21bc, and the light receiving element receives the light reflected from the light emitting element of the finger of the hand to output a detection signal.

The control unit is configured to control the drive of the electric blower 22 and the motor for the rotary brush based on a detection signal from the grip sensor 21 bs.

A battery lock mechanism 21bd is provided below the grip portion 21 b.

A coupling portion 21ae (see fig. 2) continuously connected to the upper end portion 21ba of the handle portion 21b is provided above the electric blower housing portion 21a, and an operation portion 21e including a power switch is provided on an upper surface of the coupling portion 21ae and an upper surface of the upper end portion 21ba of the handle portion 21 b.

The battery lock mechanism 21bd includes a lock release button portion 21bda provided below the grip portion 21 bc; a pawl portion 21bdb including an inclined surface portion which is in slidable contact with the lock release button portion 21 bda; a biasing member 21bdc (e.g., a compression coil spring) for biasing the claw portion 21bdb downward.

According to the battery lock mechanism 21bd, when the lock release button 21bda is pressed forward, the front end of the lock release button 21bda presses the inclined surface portion of the claw portion 21bdb, and the claw portion 21bdb moves upward against the biasing force of the biasing member 21 bdc. When the pressing of the unlock button 21bda is released from this state, the pawl 21bdb is pressed by the biasing member 21bdc and moved downward, whereby the unlock button 21bda moves to the rear initial position (position shown in fig. 4).

The battery mounting portion 21c includes a recess portion that opens downward and rearward, and the recess portion is provided in an inclined shape that slightly rises from the rear toward the front (for example, around 10 °). In addition, a power receiving terminal (not shown) electrically connectable to a power supply terminal (not shown) of the battery 40 is provided in a rear portion of the recess of the battery mounting portion 21 c.

Also, the left and right side surfaces in the recess are provided with ribs (not shown) extending in the longitudinal direction, and the left and right ribs of the battery mounting portion 21c are fitted to the grooves 44 (see fig. 1 and 2) provided along the left and right sides of the battery 40 during battery mounting. At this time, the claw portions 21bdb of the battery lock mechanism 21bd are locked in the notch recesses 42 on the rear upper surface of the battery 40, whereby the battery 40 is locked in the mounted state in the battery mounting portion 21c (see fig. 4).

As shown in fig. 2 and 4, the duct 21d projects forward from a projecting portion 21ad that projects forward of the air inlet 21aa from an upper portion of the electric blower housing portion 21a, and has an air inlet 21da at a front end thereof. Further, the tube portion 21d and the upper end portion 21ba of the handle portion 21b are linearly arranged as viewed in the left-right direction.

Fig. 7 is a diagram illustrating a structure of a first engaging portion on the driving device side and a second engaging portion on the dust collecting device side of the electric vacuum cleaner according to the first embodiment. Fig. 8 is a diagram illustrating the structure of the outlet port on the drive device side and the inlet port on the dust collecting device side of the electric vacuum cleaner according to the first embodiment.

As shown in fig. 4, 5, 7, and 8, an outlet port 21dc communicating with the inlet port 21da is provided on the lower surface side of the pipe portion 21d, and an engagement recess 51 serving as a first engagement portion of an engagement mechanism M2 described later is provided at a position forward of the outlet port 21 dc. The engagement mechanism M2 will be described in detail later.

As shown in fig. 1 to 6, the case 21 includes a hook 21f in front of a battery mounting portion 21c at the lower end of the electric blower housing portion 21 a. For example, when the cleaning is interrupted, the hook 21f can be hung on the table to erect the stick-type vacuum cleaner 1 (see fig. 1). The electric vacuum cleaner 1 can be stored by hooking the hook portion 21f to a hook provided on a wall surface. When the cleaner body 10 (see fig. 2 and 3) used as a hand-held cleaner is placed on a floor surface, the protrusions 43 provided on the hook portion 21f and the lower surface of the battery 40 serve as feet to allow the cleaner body 10 to stand on the floor surface. The protruding portion 43 of the battery 40 also functions as a slip stopper that makes it difficult for the fingers gripping the battery 40 to slip when the battery 40 is removed from the cleaner body 10.

In the case 21 of the driving device 20, a space below the pipe portion 21d and a space in front of the electric blower housing portion 21a serve as a dust collecting device mounting portion 21g (see fig. 2) to which the dust collecting device 30 is detachably mounted.

The dust collecting device mounting portion 21g of the driving device 20 and the dust collecting device 30 are provided with the first locking mechanism M1 (see fig. 2) for releasably locking the mounting state of the dust collecting device 30 to the dust collecting device mounting portion 21g and the engaging mechanism M2 (see fig. 4) for stabilizing the mounting state of the dust collecting device 30 to the dust collecting device mounting portion 21 g. The dust collector mounting part 21g including the first locking mechanism M1 and the engaging mechanism M2 will be described in detail later.

< construction of dust collecting device of vacuum cleaner body >

As shown in fig. 2 to 4, the dust collecting device 30 is a cyclone type dust collecting device formed in a substantially cylindrical shape as a whole, and includes a dust collecting container 31 having a bottom cylindrical shape and a filter unit 32 detachably attached to the dust collecting container 31, and is attached to the dust collecting device attaching portion 21g of the driving device 20 in a lateral direction. At this time, the substantially cylindrical shaft of the dust collecting device substantially coincides with the center line P of the air inlet 21aa of the driving device 20.

The dust collection container 31 is formed in a bottomed cylindrical shape and includes a bottom portion 31a, a peripheral wall portion 31b, and an opening portion on the opposite side of the bottom portion 31 a.

An inlet port 31ba (see fig. 8) is provided in a part of the peripheral wall portion 31b of the dust collection container 31, and the outlet port 21dc (see fig. 5 and 8) connectable to the inlet port 31ba of the dust collection container 31 is provided on the lower surface side of the pipe portion 21d of the driving device 20. Therefore, when the cleaner body 10 is driven, the air containing dust flowing into the pipe portion 21d of the driving device 20 flows into the dust collection container 31 through the outlet 21dc and the inlet 31 ba. The outflow port 21dc and the inflow port 31ba are described in detail later.

The filter unit 32 of the dust collecting device 30 includes a cup 32a detachably fitted into an opening of the dust collecting container 31, an inner cylinder 32b connected to a center hole of the cup 32a and housed in the dust collecting container 31, and a filter body 32c provided on the cup 32a on the opposite side of the inner cylinder 32 b. The filter main body 32c side of the cup 32a serves as a discharge port for discharging air from which dust is removed.

When the cleaner body 10 is driven, a part of the relatively large first dust among the air containing dust flowing into the dust container 31 is centrifugally separated by rotating in the dust container 31, and the other first dust is captured by the mesh part provided in the inner cylindrical part 32 b. The relatively fine second dust passing through the mesh portion is captured by the filter body 32 c. The air from which dust is removed by the filter body 32c flows into the driving device 20 through the air inlet 21aa, and is exhausted through the exhaust port 21ac by the electric blower 22.

As shown in fig. 2, 7 and 8, the dust collection device 30 includes a second lock mechanism M3 for releasably locking the engagement state between the opening of the dust collection container 31 and the filter unit 32. Other configurations of the dust collecting device 30 including the second locking mechanism M3 will be described in detail later.

< dust collector mounting part for drive device >

As shown in fig. 2 to 8, the dust collector mounting portion 21g of the driving device 20 (the housing 21) includes a first abutting portion abutting against one end in the longitudinal direction of the dust collector 30 mounted on the dust collector mounting portion 21g, and a second abutting portion abutting against the outer peripheral surface of the dust collector 30 mounted on the dust collector mounting portion 21 g. More specifically, the dust collector mounting portion 21g includes an electric blower housing portion 21a (the peripheral edge portion of the air inlet 21 aa) as a first contact portion which is mounted on the dust collector mounting portion 21g and contacts the filter portion 32 of the dust collector 30, and a pipe portion 21d (the lower side) as a second contact portion which is mounted on the dust collector mounting portion 21g and contacts the outer peripheral surface of the dust collection container 31 of the dust collector 30.

In the dust collector mounting portion 21g, a locking protrusion 41 (see fig. 2, 5, and 6) as a first locking portion of the first locking mechanism M1 is provided on the right side surface 21ar in the vicinity of the air introduction port 21aa of the electric blower housing portion 21a (first contact portion).

Further, the outlet port 21dc provided on the lower side of the pipe portion 21d of the dust collecting device mounting portion 21g is disposed at a position shifted to the right side of the center of the pipe portion 21d in the left-right direction as viewed from below as shown in fig. 5, and the seal 21dd is provided on the peripheral edge portion. As shown in fig. 4 and 8, the connection surface of the outlet 21dc of the driving device 20 with the inlet 31ba of the dust collection device 30 (specifically, the connection surface with the seal 21dd) is inclined toward the mounting direction (rearward) toward the dust collection device 30 when mounted on the dust collection device mounting portion 21 g.

The engaging recess 51 of the engaging means provided on the lower side of the pipe portion 21d of the dust collector mounting portion 21g has a width in the left-right direction that is wider on the front side and narrower on the rear side as viewed from below as shown in fig. 5, and is open on the lower side.

The pipe portion 21d constitutes the engaging recess 51, and includes a plate-shaped thick portion 51a (see fig. 5 and 7) sandwiched between an outer surface of the dust collection device 30 (an outer peripheral surface of the dust collection container 31) and the engaging projection 52 when the engaging projection 52 (see fig. 4, 7, and 8) as a second engaging portion, which will be described later, of the dust collection device 30 is inserted into the engaging recess 51. The rear wall 51a is provided with a notch 51b extending in the mounting direction (rearward) so as to form the narrow portion of the engagement recess 51.

Further, a housing recess 21de, which is mounted to the dust collecting device mounting portion 21g and can house the second lock portion M3 of the dust collecting device 30, is provided on the lower side of the pipe portion 21d of the dust collecting device mounting portion 21g at a position rearward of the outlet port 21 dc.

Further, an abutment convex portion 21df is provided on the lower side of the pipe portion 21d in front of the engagement concave portion 51. The contact protrusion 21df is capable of contacting a recess 31c of the dust collecting device 30, which will be described later, when the dust collecting device 30 attached to the dust collecting device attachment portion 21g is slid in the opposite direction (forward).

< other constitution of dust collecting apparatus >

As shown in fig. 2 and 8, a lock body 42 serving as a second locking portion that can be locked and released with the locking convex portion (first locking portion) 41 of the first locking mechanism M1 of the driving device 20 is provided on the outer surface of the filter portion 32 of the dust collection device 30. At this time, the lock body 42 is disposed on the right side of the driving device 20 (the housing 21) in a state where the dust collection device 30 is attached to the driving device 20 (see fig. 3). This will be described in detail later.

As shown in fig. 2 and 8, the lock body 42 includes a pinching button 42a pivotally connected to the outer peripheral surface of the cup portion 32a of the filter portion 32 so as to be swingable, a locking claw 42b provided on the pinching button 42a, and a biasing member 42c for biasing the pinching button 42 a.

The pinching button 42a is provided swingably about an axis C1 in the tangential direction with respect to the outer peripheral surface of the cylindrical cup portion 32 a. The pinching button 42a projects outward from the end of the cup 32a on the side opposite to the dust container 31 with respect to the axis C1, and the partial locking claw 42b projecting therefrom is provided in a projecting shape toward the cup 32a (inward).

The urging member 42C is provided between the cup 32a and the end closer to the dust collection container 31 than the axis C1 of the pinching button 42a, using a compression coil spring in the present embodiment.

According to the first locking mechanism M1 configured as described above, the dust collection device 30 is slid in the mounting direction (rearward) toward the electric blower housing part 21a (first contact part side) along the dust collection device mounting part 21g of the drive device 20, and the filter part 32 on the one end side of the dust collection device 30 is brought into contact with the peripheral edge of the air inlet 21aa of the electric blower housing part 21a, whereby the locking claw 42b of the lock body part 42 as the second locking part is locked to the locking convex part 41 as the first locking part. Thereby, the dust collecting device 30 is mounted on the driving device 20. At this time, the biasing member 42c of the lock body 42 biases the pinching button 42a in a direction in which the locking claw 42b is locked to the locking convex portion 41. The dust collecting device 30 is detached from the driving device 20 as will be described later.

As shown in fig. 4, 7 and 8, the second locking mechanism M3 of the dust collection device 30 is configured in the same manner as the first locking mechanism M1.

That is, the second locking mechanism M3 includes a pinching button 43a pivotally connected to the outer peripheral surface of the cup portion 32a of the filter portion 32 so as to be swingable, a locking claw 43b provided on the pinching button 43a, and a biasing member 43c biasing the pinching button 43 a.

The second lock mechanism M3 is provided at a position facing the engaging convex portion 52 at a position where the outer peripheral surface of the cup portion 32a is angularly offset by substantially 90 ° with respect to the lock body portion 42 of the first lock mechanism portion M1 in the circumferential direction. In other words, the second lock mechanism M3 and the engaging protrusion 52 are provided so as to be located on the same side.

The pinching button 43a is provided swingably about an axis C2 in the tangential direction with respect to the outer peripheral surface of the cylindrical cup portion 32 a. The end portion locking claw 43b on the dust collection container 31 side with respect to the axis C2 of the pinching button 43a is provided in a shape protruding toward the dust collection container 31 side.

The urging member 43C is provided between the cup 32a and the end opposite to the dust collection container 31 with respect to the axis C2 of the pinching button 43a, using a compression coil spring in the present embodiment.

The second locking mechanism M3 includes a curved (L-shaped) locking projection 43d that projects from the opening end of the substantially cylindrical dust collection container 31 in the axial direction and has a tip that is curved in a direction away from the axial center. A cut-out portion 32aa (see fig. 8) into which the curved locking protrusion 43d of the dust collection container 31 is fitted is provided at an edge of an opening of the cup portion 32a to be joined to the dust collection container 31, and the filter portion 32 is positioned with respect to the dust collection container 31 by the cut-out portion 32 aa.

In the second lock mechanism M3, the biasing member 43c biases the clamp button 43a in the direction in which the locking claw 43b is locked to the locking projection 43d, thereby maintaining the engagement between the dust collection container 31 and the filter unit 32. When the pinching button 43a is pressed, the pinching button 43a swings about the axis C2, whereby the locking claw 43b is disengaged from the locking projection 43d, and the dust collection container 31 and the filter unit 32 can be separated and washed with water.

As shown in fig. 4 and 8, the inlet port 31ba provided in the dust collection container 31 is provided so as to be opened in the tangential direction to the outer peripheral surface of the dust collection container 31 at a position shifted to the vicinity of the first locking mechanism M1 with respect to the second locking mechanism M3 and the engaging convex portion 52 which face each other.

Further, the connection surface between the inlet port 31ba of the dust collecting device 30 attached to the dust collecting device attachment portion 21g of the driving device 20 and the outlet port 21dc (seal 21dd) is inclined in the direction of the pipe portion 21d (second contact portion) in the direction opposite to the attachment direction (forward).

As shown in fig. 4, 7, and 8, the engaging convex portion 52 of the engaging mechanism M2 provided on the dust container 31 is formed in a hook shape protruding toward the second lock mechanism M3 (forward in the mounting direction) so as to be inserted into the engaging concave portion 51 of the engaging mechanism M2 provided on the pipe portion 21d of the drive device 20.

When the dust collection device 30 is mounted on the driving device 20, the engaging convex portion 52 is inserted into a wide portion of the width of the engaging concave portion 51, and the dust collection device 30 is slid in the mounting direction (rear direction) with respect to the driving device 20, whereby the engaging convex portion 52 slides toward the wall thickness portion 51a side of the engaging concave portion 51 and is engaged therewith. The engaging convex portion 52 is provided with an insertion rib 52a which is inserted into the notch 51b of the engaging concave portion 51 when the dust collection device 30 is slid in the mounting direction.

As shown in fig. 4 and 7, in the dust collection container 31, a recess 31c is provided between the outer peripheral surface of the peripheral wall portion 31b and the bottom portion 31a at a position near the engaging protrusion 52. The recess 31c is formed by inwardly recessing a rounded portion between the peripheral wall 31b and the bottom 31 a. The inner side of the concave portion 31c is a convex portion 31d of a rotation stopper for dust rotating in the dust collection container 31.

< attachment/detachment of dust collecting device to/from drive device >

As shown in fig. 7 and 8, when the dust collection device 30 is mounted to the dust collection device mounting portion 21g of the driving device 20, first, the outer peripheral surface of the dust collection device 30 is abutted against the pipe portion 21d (second abutting portion) of the dust collection device mounting portion 21 g.

At this time, the second locking mechanism M3 and the engaging protrusion 52 of the dust collection device 30 face the pipe portion 21d side, so that the user can recognize that the dust collection device is properly attached. At this time, the concave portion 31c of the dust collector 30 is positioned on the abutment convex portion 21df of the driving device 20, whereby the engaging convex portion 52 of the engaging mechanism M2 on the dust collector 30 side is inserted into a wide portion of the width of the engaging concave portion 51 of the engaging mechanism M2 on the driving device 20 side. In addition, in this way, an appropriate gap before sliding is formed between the filter unit 32 of the dust collection device 30 and the air introduction port 21aa (first contact portion) of the electric blower housing part 21a of the drive device 20.

Next, the dust collection device 30 is slid in the mounting direction of the electric blower housing portion 21a side with respect to the driving device 20. At this time, the locking claw 42b of the first locking mechanism M1 on the dust collection device 30 side is locked to the locking convex portion 41 of the first locking mechanism M1 on the driving device 20 side. Further, the engaging convex portion 52 on the dust collecting device 30 side is in contact with the thick portion 51a of the engaging concave portion 51 on the driving device 20 side, that is, the thick portion 51a of the engaging concave portion 51 slides and is sandwiched between the engaging convex portion 52 and the outer peripheral surface of the dust collecting container 31, and the engaging convex portion 52 is engaged with the engaging concave portion 51. This completes the attachment of the dust collection device 30 to the drive device 20. Further, the rear wall 51a is provided, whereby the rattling of the dust collection device 30 in the direction of separating from and contacting with the driving device 20 (vertical direction) is reduced.

In addition, when the dust collection device 30 is mounted, the second lock mechanism M3 of the dust collection device 30 is received in the receiving recess 21de provided at the lower end of the pipe portion 21d of the driving device 20.

Further, by the sliding of the dust collecting device 30, the connecting surface of the inflow port 31ba of the dust collecting device 30 comes close to and closely contacts the connecting surface of the sealing member 21dd provided at the outflow port 21dc of the driving device 20. At this time, since the connection surface of the inlet 31ba and the connection surface of the outlet 21dc are parallel to each other and inclined to each other with respect to the mounting direction, the sliding area between the connection surface of the inlet 31ba and the connection surface of the seal 21dd is reduced, and the damage of the seal 21dd caused by the friction of the inlet 31ba against the seal 21dd is reduced.

Further, by sliding the dust collecting device 30, the discharge port at the end of the filter unit 32 of the dust collecting device 30 abuts against the seal 21ap of the air inlet 21aa of the driving device 20 (see fig. 6).

Next, the removal of the dust collection device 30 from the drive device 20 will be described.

Fig. 9 is a diagram illustrating a state in which the dust collecting device is removed from the drive device with the right hand in the electric vacuum cleaner of the first embodiment, and fig. 10 is a diagram illustrating a state in which the dust collecting device is removed from the drive device with the left hand in the electric vacuum cleaner of the first embodiment. Fig. 11 is another view for explaining a state in which the dust collecting device is detached from the drive device with the right hand in the electric vacuum cleaner of the first embodiment, and fig. 12 is another view for explaining a state in which the dust collecting device is detached from the drive device with the left hand in the electric vacuum cleaner of the first embodiment.

According to this cleaner body 10, as shown in fig. 2, 9, and 10, the driving device 20 can be easily detached from the dust collecting device 30 even if the user uses either of the left and right hands.

For example, as shown in fig. 2 and 9, when the dust collection device 30 is gripped while the pinching button 42a of the first locking mechanism M1 is pressed by the thumb of the right hand RH, the locking claw 42b of the first locking mechanism M1 is disengaged from the locking convex portion 41, and in this state, the dust collection device 30 is slid in the direction opposite to the mounting direction (the direction of the arrow a1, in the present embodiment, the front direction) until the engaging convex portion 52 reaches a wide portion of the width of the engaging concave portion 51. Thereafter, when the dust collection device 30 is moved in a direction (downward) away from the pipe portion 21d, the engaging convex portion 52 of the engaging mechanism M2 is disengaged from the engaging concave portion 51 (see fig. 7 and 8). Alternatively, the concave portion 31c of the dust collection device 30 abuts against the abutting convex portion 21df of the driving device 20, whereby the dust collection device 30 moved in parallel (in the direction of the arrow a 1) to the pipe portion 21d of the driving device 20 is guided in a direction (in the direction of the arrow a 2) to be separated from the pipe portion 21d, and the engaging convex portion 52 of the engaging mechanism M2 is disengaged from the engaging concave portion 51. Thereby, the dust collecting device 30 is detached from the driving device 20. The left hand, not shown, supports the grip portion 21b of the driving device 20, for example.

As shown in fig. 10, the dust collection device 30 can be detached from the drive device 20 in the same manner as described above by grasping the dust collection device 30 with the left hand LH and sliding the dust collection device 30 in the direction opposite to the mounting direction (the direction of the arrow a 1) while pressing the grip button 42a of the first locking mechanism M1 with the thumb. Alternatively, the dust collection device 30 can be similarly detached from the drive device 20 by grasping the dust collection device 30 with the left hand LH so that the grip button 42a of the first locking mechanism M1 is pressed with a little finger, and sliding the dust collection device 30 in the direction opposite to the mounting direction (the direction of the arrow a 1) while pressing the grip button 42a with a little finger.

Alternatively, in the case of a user with a large hand, the dust collection device 30 can be detached from the drive device 20 in the same manner as described above by grasping the dust collection device 30 with the right hand RH from above the pipe portion 21d of the drive device 20 (so as to straddle the pipe portion 21d) and sliding the dust collection device 30 in the direction opposite to the attachment direction (the direction of the arrow a 1) while pressing the grip button 42a with the thumb as shown in fig. 11. Further, as shown in fig. 12, the dust collecting device 30 can be detached from the driving device 20 by grasping the dust collecting device 30 with the left hand LH from above the pipe portion 21d (so as to straddle the pipe portion 21d) and sliding the dust collecting device 30 in the direction opposite to the mounting direction (the direction of the arrow a 1) while pressing the grip button 42a with the index finger.

As described above, according to the cleaner body 10, when the dust collection device 30 is attached to the drive device 20, the positioning (positioning before sliding) of the dust collection device 30 to the drive device 20 is easy, and the attachment performance is improved.

Further, since the second locking mechanism M3 is disposed in the pipe portion 21d of the driving device 20 in the same manner as the inflow port 31ba in the state where the dust collection device 30 is attached to the driving device 20, the dust collection device 30 itself is not unintentionally separated during cleaning in a state where it does not come into contact with the user.

Further, since the first locking mechanism M1 for attaching and detaching the driving device 20 and the dust collecting device 30 is disposed on one side of both side surfaces of the housing 21 (the right side surface 21ar side in the present embodiment), the dust collecting device 30 can be removed by sliding while unlocking, and usability is improved. In this case, even if the lock is released with one hand by either of the left and right hands, the dust collection device 30 can be easily removed from the drive device 20. In other words, when the hand is bent into a C-shape with the thumb and the other four fingers to grasp the dust collecting device 30, the first locking mechanism M1 can be easily unlocked with the thumb or fingers other than the thumb (for example, the index finger) because it is disposed on one of the two side surfaces of the case 21. Further, when the hook portion 21f is detached from the case 21 and the first locking mechanism M1 is provided at this position, it becomes difficult to reliably grasp the dust collecting device 30 while releasing the lock, regardless of the right hand or the left hand.

(second embodiment)

In the first embodiment, the first locking mechanism M1 for attaching and detaching the driving device 20 and the dust collection device 30 to and from each other is shown as being disposed on the right side surface 21ar side of the housing 21, but the first locking mechanism M1 may be disposed on the left side surface side of the housing 21. Even in this case, as described with reference to fig. 9 to 12, the dust collecting device 30 can be easily detached from the driving device 20 with one hand with either of the left and right hands.

(third embodiment)

In the cleaner body 10 of the first embodiment, as shown in fig. 5, the outlet 21dc of the drive device 20 is disposed at a position slightly offset in the left-right direction (right side in fig. 5) from the position directly below the pipe portion 21d, but the outlet 21dc may be disposed at a position directly below the pipe portion 21d, or the outlet 21dc may be disposed outside the pipe portion 21d in the left-right direction. In these cases, the inlet 31ba of the dust collecting device 30 is disposed at a position connectable to the outlet 21dc of the driving device 20.

In the first embodiment, the outlet port 21dc is opened directly below the pipe portion 21d, and the dust-containing air flows into the dust collection container 31 from the tangential direction (first tangential direction) of the peripheral wall portion 31b (see fig. 8) due to the outlet port 21dc, but the outlet port 21dc is not limited to being opened directly below the pipe portion 21 d. For example, the outlet port 21dc may be opened obliquely downward, and the dust-containing air may flow into the dust collection container 31 from the second tangential direction of the peripheral wall 31b through the outlet port 21 dc. In this case, the second tangential direction is a direction intersecting an acute angle with respect to the first tangential direction as viewed from the front. In this case, the inlet 31ba of the dust collecting device 30 is also disposed at a position connectable to the outlet 21dc of the driving device 20.

(fourth embodiment)

In the cleaner body 10 of the first embodiment, as shown in fig. 8, the connection surface of the outlet port 21dc of the driving device 20 is inclined with respect to the sliding direction when the dust collecting device is attached and detached, and the connection surface of the outlet port 21dc may be parallel to the sliding direction. The connection surface of the inflow port 31ba of the dust collection device 30 is parallel to the connection surface of the outflow port 21dc of the driving device 20 in this case. In this case, it is preferable that the connection surface of the outlet port 21dc and the connection surface of the inlet port 31ba do not contact with each other until the first locking mechanism M1 locks the connection surfaces (the locking claw 42b contacts the locking convex portion 41), and the connection surfaces contact each other when the locking claw 42b starts to ride over the locking convex portion 41. Thus, the sliding area between the connection surface of the inflow port 31ba and the connection surface of the seal 21dd is reduced, and damage to the seal 21dd caused by the inflow port 31ba rubbing against the seal 21dd is reduced.

(fifth embodiment)

In the first embodiment, the cleaner body 10 includes the grip portion 21b, and although a stick-type or handheld-type electric cleaner used by a user gripping the grip portion 21b is exemplified, the present invention is also applicable to a canister-type (canister-type) electric cleaner. In the case of this canister type electric vacuum cleaner, the cleaner body includes a wheel-attached driving device incorporating an electric blower and a dust collecting device mounted in a state of being laid on the upper surface of the driving device, and the structure of mounting the dust collecting device to the driving device is the same as that of the first embodiment.

(conclusion)

An electric vacuum cleaner according to an aspect of the present invention includes: a driving device which is a box body containing an electric blower for sucking dust; a dust collecting device detachably mounted on the case to receive the sucked dust and communicating with the electric blower; and a lock mechanism for releasably locking the state of the dust collector mounted on the housing; wherein

The locking mechanism includes: a first locking portion provided outside the case; and a second locking part which is arranged outside the dust collecting device and can be locked and separated from the first locking part;

the box body comprises two side surfaces;

According to this configuration, when the dust collecting device is maintained, the user can remove the dust collecting device from the driving device while operating the lock mechanism to unlock the dust collecting device with one hand. In this case, since the lock mechanism is disposed on the left or right side surface of the housing, the user can easily unlock and detach the dust collecting device with either of the left and right hands.

The electric vacuum cleaner according to an aspect of the present invention may be configured as follows, and these may be appropriately combined.

The dust collecting device may be cylindrical;

the box body comprises: a first abutting portion abutting against one end in a longitudinal direction of the dust collecting device; and a second abutting portion abutting against an outer peripheral surface of the dust collecting device to which the dust collecting device is attached;

the first engagement portion is provided at the first abutting portion;

the second locking portion is provided on the outer peripheral surface of the one end side of the dust collecting device;

the electric dust collector is configured in such a manner that the dust collecting device slides along a second abutting part of the box body towards the mounting direction of the first abutting part side, and the one end approaches the first abutting part, so that the second clamping part is clamped to the first clamping part, and the dust collecting device is mounted on the box body;

the dust collecting device is detached from the housing by operating the lock mechanism of the dust collecting device attached to the housing to disengage the second engaging portion from the first engaging portion and sliding the dust collecting device in a direction opposite to the attaching direction in this state.

According to this configuration, since the dust collecting device can be attached to and detached from the driving device by sliding the dust collecting device, positioning of the dust collecting device with respect to the driving device is easy in mounting, and the mounting property is improved. In other words, in one aspect of the present invention, the dust collecting device can be mounted by sliding one end of the dust collecting device toward the first contact portion of the driving device that is a large target, and there is no trouble of positioning the locking portion of the dust collecting device by inserting the locking portion into the small fulcrum portion of the mounting portion of the driving device as in japanese patent No. 6466176 and rotating the dust collecting device.

In the locking mechanism, the first locking portion may be a locking projection provided on an outer surface of the first abutting portion, the second locking portion may be a locking body provided on an outer surface of the one end of the dust collecting device, and the locking body may be locked to and released from the locking projection;

the locking body portion includes: a clamp button pivotally connected to an outer surface of the one end in a swingable manner; a locking claw provided on the clamp button; and a biasing member that biases the clamp button in a direction in which the locking claw is locked to the locking convex portion;

the electric dust collector is configured in such a manner that the dust collecting device is slid along a second contact portion of the box body in the mounting direction of the first contact portion side to cause the one end to approach the first contact portion, whereby the locking claw is locked to the locking convex portion, and the dust collecting device is mounted on the box body;

the dust collecting device is detached from the housing by sliding the dust collecting device in a direction opposite to the mounting direction in a state where the engaging claw is swung to be disengaged from the engaging projection against the urging force of the urging member by pressing the grip button of the dust collecting device mounted to the housing.

According to this configuration, the dust collecting device can be removed in a step of sliding the dust collecting device while pressing the grip button in a state of grasping the dust collecting device.

A first engaging portion may be provided in the second contact portion of the case;

a second clamping part which can be clamped and separated from the first clamping part is arranged outside the dust collecting device;

when the dust collecting device is installed on the box body, the dust collecting device slides towards the installation direction, so that the second clamping part is clamped with the first clamping part;

the second engaging portion is disengaged from the first engaging portion by sliding the dust collecting device mounted to the housing in the opposite direction.

According to this configuration, the second abutting portion of the driving device can hold the other end side of the dust collecting device.

The first engaging portion may be an engaging recess;

the second clamping part is a clamping convex part which can be inserted into the clamping concave part;

when the dust collecting device is mounted on the box body, the dust collecting device slides towards the mounting direction, so that the clamping convex part is inserted into the clamping concave part to be clamped;

the dust collecting device mounted on the housing is slid in the opposite direction, whereby the engaging convex portion is pulled out and disengaged from the engaging concave portion.

According to this configuration, the structure that can be engaged and disengaged in the direction in which the first engaging portion and the second engaging portion slide with each other can be simplified.

The second contact portion may include a plate-shaped thick portion that constitutes the engaging recess portion and is sandwiched between the outer surface of the dust collection device and the engaging projection portion when the engaging projection portion is inserted into the engaging recess portion.

According to this configuration, in a state where the dust collecting device is mounted on the driving device, the outer surface of the dust collecting device and the engaging convex portion are easily pressed against the thick portion on the driving device side, and thus the shaking of the dust collecting device in the direction separating from the driving device is suppressed. Further, since the thick portion is thicker than the peripheral portion and has increased strength, the thick portion is less likely to be damaged even when the dust collecting device is repeatedly attached to and detached from the driving device.

The thick portion may include a notch portion extending in the attachment direction;

the engaging projection includes an insertion rib that is inserted into the notch portion by sliding in the attachment direction.

According to this configuration, the engaging convex portion is reinforced. In addition, the insertion rib abuts against the notch portion, thereby suppressing the shaking of the dust collecting device in the left-right direction relative to the driving device.

The dust collecting device may include: a cylindrical dust collecting container including a bottom portion, a peripheral wall portion, and an opening portion on the opposite side of the bottom portion; a filter unit provided at the one end side of the opening portion detachably provided in the dust collection container; and a second locking mechanism for releasably locking the joint state of the opening part of the dust collecting container and the filter part;

the second abutment portion includes a receiving recess that can receive the second locking mechanism;

the second lock mechanism is disposed on the second abutment portion side so as to be accommodated in the accommodation recess in a state where the dust collection device is mounted to the case.

According to this configuration, in a state where the dust collection device is mounted on the drive device, the second lock mechanism is housed in the housing recess so as not to be touched by a user. Therefore, the defect that the second locking mechanism is accidentally released to separate the dust collecting container of the dust collecting device from the filter unit during cleaning of the electric dust collector is prevented.

An outlet port through which the dust-containing air flowing into the housing can be sent out to the dust collection container may be provided in the second contact portion;

an inflow port connectable to the outflow port is provided outside the dust collecting container;

an outlet port through which air from which dust has been removed by the filter unit can be discharged is provided at the one end of the dust collecting device;

an air inlet port connectable to the discharge port so that the dust-removed air flows into the case is provided in the first contact portion;

a connection surface of the outlet port with the inlet port is inclined toward the direction of the dust collecting device when the dust collecting device is mounted in the housing, as the connection surface faces the mounting direction;

the connection surface of the inlet of the dust collecting device and the outlet is inclined in parallel with the connection surface of the outlet.

According to this configuration, when the dust collecting device is mounted by sliding in the mounting direction with respect to the driving device, the inlet port on the dust collecting device side is pressed against the outlet port on the driving device side, and the connection structure is improved in sealing performance. Further, the seal may be provided on the outlet side or the outlet side, and in this case, the seal is less likely to be damaged because the sliding of the outlet or the outlet with respect to the seal is reduced.

The dust collecting container may be provided with a recess between an outer surface of the peripheral wall portion and the bottom portion;

the second abutting portion is provided with an abutting convex portion which can abut against the concave portion when the dust collecting device mounted on the box body slides in the opposite direction.

According to this configuration, when the dust collecting device attached to the driving device is slid in the opposite direction, the concave portion abuts against the abutting convex portion, and then the dust collecting device can be guided in the direction of separating from the driving device naturally (even if the user does not operate). Further, by providing a rounded corner or an inclined surface on at least one of the concave portion and the abutting convex portion, smooth guiding can be achieved.

In addition, the disclosed embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is indicated by the scope of the claims rather than the description above, and is intended to include meanings equivalent to the scope of the claims and all modifications within the scope.

Claims

1. An electric vacuum cleaner, comprising:

a driving device which is a box body containing an electric blower for sucking dust;

a dust collecting device detachably mounted on the case to receive the sucked dust and communicating with the electric blower; and

a lock mechanism for releasably locking a state of the dust collecting device attached to the housing; wherein

The locking mechanism includes:

a first locking portion provided outside the case; and

a second locking part which is arranged outside the dust collecting device and can be locked and separated from the first locking part;

the box body comprises two side surfaces;

2. The electric vacuum cleaner according to claim 1,

the dust collecting device is cylindrical;

the box body comprises:

a first abutting portion abutting against one end in a longitudinal direction of the dust collecting device; and

a second abutting portion abutting against an outer peripheral surface of the dust collecting device to which the dust collecting device is attached;

the first engagement portion is provided at the first abutting portion;

the electric vacuum cleaner is configured to:

sliding the dust collecting device along a second abutting portion of the housing in a mounting direction of the first abutting portion side, and bringing the one end close to the first abutting portion, whereby the second engaging portion is engaged with the first engaging portion, and the dust collecting device is mounted to the housing;

3. The electric vacuum cleaner according to claim 2,

in the locking mechanism, the first locking portion is a locking projection provided on an outer surface of the first abutting portion, and the second locking portion is a locking body portion provided on an outer surface of the one end of the dust collecting device, and the locking body portion and the locking projection are engageable and disengageable;

the locking body portion includes:

a clamp button pivotally connected to an outer surface of the one end in a swingable manner;

a locking claw provided on the clamp button; and

a biasing member that biases the clamp button in a direction in which the locking claw is locked to the locking convex portion;

the electric vacuum cleaner is configured to:

sliding the dust collecting device along a second abutting portion of the housing in the mounting direction of the first abutting portion side so that the one end approaches the first abutting portion, whereby the locking claw is locked to the locking convex portion, and the dust collecting device is mounted to the housing;

4. The electric vacuum cleaner according to claim 2 or 3,

a first clamping part is arranged on the second abutting part of the box body;

5. The electric vacuum cleaner according to claim 4,

the first clamping part is a clamping concave part;

6. The electric vacuum cleaner according to claim 5,

the second abutting portion includes a plate-shaped thick portion that constitutes the engaging recess portion and is sandwiched between an outer surface of the dust collection device and the engaging projection portion when the engaging projection portion is inserted into the engaging recess portion.

7. The electric vacuum cleaner according to claim 6,

the thick portion includes a notch portion extending in the mounting direction;

8. The electric vacuum cleaner according to any one of claims 2 to 7,

the dust collecting device includes:

a cylindrical dust collecting container including a bottom portion, a peripheral wall portion, and an opening portion on the opposite side of the bottom portion;

a filter unit provided at the one end side of the opening portion detachably provided in the dust collection container; and

a second locking mechanism for releasably locking the joint state of the opening part of the dust collecting container and the filter part;

9. The electric vacuum cleaner according to claim 8,

an outlet port through which air containing dust flowing into the case can be sent out to the dust collecting container is provided in the second contact portion;

10. The electric vacuum cleaner according to claim 8 or 9,

the dust collecting container is provided with a concave part between the outer surface of the peripheral wall part and the bottom part;