Work machine

Abstract

To provide a work machine improved in convenience.SOLUTION: A cleaner 1 includes: a dust collection bag 7; a housing 2 including a lid part 22 assembled with a body part 21 and defining a housing chamber 212 housing the dust collection bag 7 to the body part 21; and a holding part 6 provided to the lid part 22 and capable of holding the dust collection bag 7. The holding part 6 includes: a base part 61; a fixation member 62 by which the dust collection bag 7 can be fixed to the base part 61; and a detection member 63 capable of detecting whether or not the dust collection bag 7 locates at a fixed position capable of being fixed by the fixation member 62, by abutting the dust collection bag 7. The fixation member 62 can be relatively moved to the base part 61 between a regulation position which regulates assembly between the body part 21 and the lid part 22, and a non-regulation position to which the dust collection bag 7 is fixed and which does not regulate assembly between the body part 21 and the lid part 22. The detection member 63 regulates that the fixation member 62 moves to the non-regulation position from the regulation position when the dust collection bag 7 does not locate at the fixed position.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a work machine. [Background technology]

[0002] One example of a work machine is one used for dust collection work. Patent Document 1 discloses a work machine equipped with a fan that is driven to rotate by a motor and a dust bag (dust collection bag) that separates dust from the air sucked in by the fan. The dust bag is detachably housed inside the work machine. An opening is formed in the housing of the work machine, and the dust bag can be attached and detached through this opening. A detachable lid is attached to the opening of the housing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-70853 Summary of the Invention [Problem to be solved by the invention]

[0004] In order to prevent the work machine of Patent Document 1 from being used when the dust bag is not attached, it is conceivable to provide a structure that prevents the lid from being attached when the dust bag is not attached. In this case, it is conceivable to provide a structure that enables the presence or absence of a dust bag to be detected on the member that secures the dust bag, but this would increase the size of the member that secures the dust bag and make the structure more complex, which could reduce convenience. [Means for solving the problem]

[0005] A work machine according to one embodiment includes a housing including a motor, a fan that rotates by receiving driving force from the motor, a dust bag capable of collecting dust therein, a first housing, and a second housing that is assembled to the first housing to define a chamber for accommodating the dust bag between the first housing and the second housing, and a holding portion provided on the first housing and capable of holding the dust bag. The holding portion has a base, a fixing member that fixes the dust bag to the base, and a detection member that abuts against the dust bag and detects whether the dust bag is positioned at a fixed position where it can be fixed by the fixing member. The fixing member is movable relative to the base between a restricting position that restricts assembly of the second housing to the first housing and an unrestricted position that fixes the dust bag but does not restrict assembly of the second housing to the first housing. The detection member prevents the fixing member from moving from the restricting position to the unrestricted position when the dust bag is not positioned at the fixed position.

[0006] A work machine according to one embodiment includes a housing including a motor, a fan that rotates by receiving driving force from the motor, a dust bag capable of collecting dust therein, a first housing, and a second housing that is assembled to the first housing to define a storage chamber for accommodating the dust bag between the first housing and the second housing, and a holding portion provided on the first housing and capable of holding the dust bag. The holding portion has a base, a fixing member that can fix the dust bag to the base, and a detection member that can detect whether the dust bag is located in a fixed position that can be fixed by the fixing member by contacting the dust bag. The dust bag has a plate-shaped portion and a bag portion attached to the plate-shaped portion. The fixing member has a clamping surface that fixes the dust bag by clamping the plate-shaped portion between the fixing member and the base in a first direction. The detection member is arranged to overlap the clamping surface in the first direction when the dust bag is fixed. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a work machine with improved convenience. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a front view showing the appearance of a cleaner that is a work machine according to an embodiment of the present invention; [Figure 2] FIG. 2 is a cross-sectional view of the cleaner taken along line AA in FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] 6 is a cross-sectional view of the holding portion taken along line BB in FIG. 5. [Figure 8] 7 is a cross-sectional view of the holding portion taken along line CC in FIG. 6. [Figure 9] FIG. [Figure 10] FIG. 10 is a cross-sectional view of the cleaner while the lid is being attached or detached. [Figure 11] FIG. 10 is a cross-sectional view of the cleaner while the lid is being attached or detached. DETAILED DESCRIPTION OF THE INVENTION

[0009] <Embodiment> A working machine of a first embodiment will be described with reference to the drawings. The working machine of this embodiment is a portable cleaner (vacuum cleaner) suitable for use in dust collection work. Fig. 1 is a front view showing the appearance of cleaner 1 of this embodiment. Fig. 2 is a cross-sectional view of cleaner 1 taken along line AA shown in Fig. 1.

[0010] <Overall structure> The cleaner 1 includes a housing 2, a motor 4, a fan 5, and a holder 6. The housing 2 has a lid 22, which is a first housing, and a main body 21, which is a second housing. The lid 22 is detachably attached to the main body 21. The motor 4 and the fan 5 are housed within the main body 21. The holder 6 is attached to the lid 22 and detachably holds the dust bag 7. That is, the dust bag 7 is detachably attached to the lid 22.

[0011] <Housing 2> The housing 2 is composed of a cover portion 22 and a main body portion 21, both of which are molded from synthetic resin.

[0012] <Main body 21> The main body 21, which is the second housing, is composed of a storage section 210 and a dust collection case 211. Specifically, the storage section 210 and the dust collection case 211 are detachably provided along a first main body direction D1 parallel to the central axis X. The dust collection case 211 stores a dust collection bag 7 attached to a holder 6 provided on the lid 22.

[0013] In the following description, the first main body direction D1 may also be referred to as the front-to-rear direction of the cleaner 1. In addition, along the first main body direction D1, the side from the storage section 210 toward the dust collection case 211 may also be referred to as the front side, and the side from the dust collection case 211 toward the storage section 210 may also be referred to as the rear side.

[0014] <Storage section 210> The housing portion 210 is composed of two casings 210a and 210b molded from synthetic resin (see FIG. 1). The casings 210a and 210b are fixed to each other in an abutted state to form the housing portion 210. More specifically, the casings 210a and 210b are fixed to each other with fixing elements such as screws. From another perspective, the casings 210a and 210b that constitute the housing portion 210 can be separated by releasing the fixation by the fixing elements.

[0015] The direction perpendicular to the first body direction D1 and parallel to the direction in which the casings 210a and 210b are aligned is referred to as the second body direction D2. In the second body direction D2, the casing 210a side is sometimes referred to as the right side, and the casing 210b side is sometimes referred to as the left side. Furthermore, the direction perpendicular to the first body direction D1 and the second body direction D2 is referred to as the third body direction D3. In the third body direction D3, the side from the battery pack 13 (described later) toward the grip 9 is sometimes referred to as the upper side, and the side from the grip 9 toward the battery pack 13 is sometimes referred to as the lower side.

[0016] As shown in FIG. 2, an inlet 18 that communicates with a fan 5, which will be described later, is provided on the front surface (front face) of the storage section 210. A storage-side engaging portion 31 is provided around the inlet 18. The storage-side engaging portion 31 is, for example, a groove that opens radially outward and surrounds the entire or nearly entire circumference of the inlet 18. When a dust-collection case 211, which will be described later, is attached to the storage section 210, the storage-side engaging portion 31 engages with a case-side engaging portion provided on the dust-collection case 211.

[0017] A battery mounting section 14 is provided near the rear end of the storage section 210, and the battery pack 13 is mounted thereon. The battery pack 13 is a rechargeable secondary battery (e.g., a lithium ion battery). The battery pack 13 and the battery mounting section 14 each have a connection terminal. When the battery pack 13 is mounted in the battery mounting section 14, the connection terminals provided on each are electrically connected to each other.

[0018] The accommodation section 210 accommodates the motor 4, the fan 5, the controller 15, etc. That is, the accommodation section 210, which constitutes the second housing, accommodates the motor 4 and the fan 5. The motor 4 accommodated in the accommodation section 210 includes a motor body including a rotor and a stator, and an output shaft 411 that rotates integrally with the rotor. One end side (tip side) of the output shaft 411 protrudes from the motor body and is connected to the fan 5. Note that the central axis X shown in each drawing is also the central axis of the output shaft 411 of the motor 4. That is, in this embodiment, the longitudinal direction of the output shaft 411 corresponds to the front-rear direction of the cleaner 1.

[0019] The fan 5 housed in the housing 210 is a centrifugal fan that is driven to rotate by the driving force of the motor 4. When the fan 5 is driven to rotate by the motor 4, an airflow is generated that flows from the air intake 213 provided in front of the dust collection case 211, passes through the dust collection case 211 and the dust collection bag 7, and enters the housing 210 through the air inlet 18. The air that has flowed into the housing 210 passes through the interior of the housing 210 and is exhausted from the multiple air outlets 19 formed in the housing 210. At this time, at least a portion of the airflow passing through the interior of the housing 210 passes around the motor 4 and removes heat from the motor 4. As a result, the motor 4 is cooled.

[0020] The motor 4 is operated based on the operation of an operating unit 8 provided on a grip 9 that is part of the housing 210. More specifically, when the operating unit 8 is operated by a user, power is supplied to the motor 4 from the battery pack 13 under the control of the controller 15, and the motor 4 is operated.

[0021] <Dust collection case 211> The dust collection case 211 constituting the second housing is detachable from the storage part 210. The dust collection case 211 is molded from synthetic resin and has an overall cylindrical shape. A cylindrical nozzle (inlet pipe) 214 having an air intake port 213 through which the airflow generated by the fan 5 flows is integrally formed at the tip, i.e., the front end, of the dust collection case 211. The inside of the nozzle 214 penetrates the dust collection case 211 in the front-rear direction, thereby communicating the inside and outside of the storage chamber 212 described below and defining a flow path through which the airflow flows from the outside to the inside of the storage chamber 212. The cylindrical nozzle 214 is disposed so that the center of the nozzle 214 coincides or approximately coincides with the central axis X.

[0022] An abutment portion 214a is formed on the lower end portion on the rear side of the nozzle 214. As will be described in detail below, the abutment portion 214a restricts the assembly of the dust collection case 211 and the lid portion 22 when the dust collection bag 7 is not attached to the holding portion 6 of the lid portion 22. Specifically, the abutment portion 214a abuts against a part of the holding portion 6 provided on the lid portion 22, causing the part of the holding portion 6 to abut in a predetermined direction (abutting direction). Details of the abutment between the abutment portion 214a and the holding portion 6 will be described later.

[0023] The dust collection case 211 is provided at its rear end, i.e., the rear end, with a case-side engaging portion that engages with the above-mentioned accommodation-side engaging portion 31. The case-side engaging portion is, for example, a protrusion that extends in the circumferential direction of the dust collection case 211.

[0024] The dust collection case 211 is attached to and detached from the storage part 210 by rotating it relative to the storage part 210 around the central axis X as the rotation axis. In this case, by rotating the dust collection case 211 and aligning the position of the case-side engaging part with the position of the notch formed in the storage-side engaging part 31 of the storage part 210, the case-side engaging part can be inserted into and removed from the storage-side engaging part 31.

[0025] 1 with the positions of the case-side engaging portions and the positions of the notches aligned, the case-side engaging portions move in the R1 direction within the housing-side engaging portions 31. When the dust-collection case 211 reaches a predetermined rotation angle (for example, approximately 120 degrees), the case-side engaging portions and the housing-side engaging portions 31 engage properly, and the dust-collection case 211 is attached to the housing 210 properly.

[0026] 1, the case-side engaging portions move in the R2 direction within the housing-side engaging portion 31. When the rotation angle of the dust collection case 211 reaches approximately 120 degrees, the position of the case-side engaging portions and the position of the two notches match. When the dust collection case 211 is pulled forward in this state, the case-side engaging portions are pulled out of the housing-side engaging portion 31 through the respective notches. In other words, the engagement between the case-side engaging portions and the housing-side engaging portion 31 is released, and the dust collection case 211 is removed from the housing portion 210.

[0027] Dust collection case 211 attached to storage section 210 cooperates with lid section 22, which will be described later, to form storage chamber 212 in front of storage section 210. This storage chamber 212 stores dust collection bag 7, which is fixed to holding section 6 of lid section 22, as will be described later. In other words, storage section 210 and dust collection case 211, which are the second housing, define storage chamber 212 for storing dust collection bag 7 between them and the first housing by assembling lid section 22, which is the first housing.

[0028] A lid portion 22, which will be described later, is removably attached to the upper side of the dust collection case 211. A case opening 216 (see FIGS. 10 and 11, which will be described later), a front engagement portion 217, and a rear engagement portion 218 are formed on the upper side of the dust collection case 211. The case opening 216 is an opening through which the dust collection bag 7 passes when the lid portion 22, to which the dust collection bag 7 is attached, is attached to or detached from the dust collection case 211, as will be described later. Because the case opening 216 is formed on the upper side of the cylindrical dust collection case 211, the shape of the second housing in which the dust collection case 211 is attached to the storage portion 210 is bowl-shaped with an opening on the upper side and a space (storage chamber 212) formed inside.

[0029] The front engagement portion 217 is formed at the front end of the case opening 216. Specifically, the front engagement portion 217 is a recess formed in the upper rear end surface of the nozzle 214. The rear engagement portion 218 is formed at the rear end of the case opening 216. Specifically, the rear engagement portion 218 is formed on an opening wall surface 216a at the rear end of the case opening 216. The opening wall surface 216a is perpendicular to the first main body direction D1 and is connected to the outer surface of the dust collection case 211. The rear engagement portion 218 is a recess formed on the opening wall surface 216a.

[0030] <Lid part 22> As described above, the lid portion 22, which is the first housing, is detachable from the dust collection case 211, which constitutes the second housing. The lid portion 22 is molded from synthetic resin. The lid portion 22 is formed by an outer surface 220, a front surface 221, and a rear wall surface 222. The outer surface 220 is formed into a lid shape that becomes a curved surface that follows the cylindrical shape of the dust collection case 211 when the lid portion 22 is attached to the dust collection case 211. In other words, the lid portion 22 constitutes the outer shell of the cleaner 1.

[0031] The front surface 221 is connected to the front side of the outer surface 220, and the rear wall surface 222 is connected to the rear side of the outer surface 220. The lower ends of the outer surface 220, the front surface 221, and the rear wall surface 222 form an opening 224. A sealing member such as a packing is attached to the edge of the opening 224. When the lid part 22 is assembled to the dust collection case 211, the edge of the opening 224 and the edge of the case opening 216 come into contact with each other. As a result, the storage chamber 212, which is a space formed in the dust collection case 211, is covered by the lid part 22.

[0032] A holder 6 capable of holding a dust bag 7 is provided in the space defined by outer surface 220, front surface 221, and rear wall surface 222, i.e., inside lid portion 22. When lid portion 22 is attached to dust collection case 211, dust collection bag 7 held by holder 6 enters storage chamber 212, which is the space inside dust collection case 211.

[0033] As described above, lid portion 22 is attached to dust collection case 211 constituting the second housing, thereby covering storage chamber 212, which is a space formed within the second housing, and is formed in a lid shape that allows holding portion 6 to enter inside storage chamber 212. Lid portion 22 has hinge portion 225, lid operating portion 226, and lid-side engaging portion 227 so that lid portion 22 can be attached to dust collection case 211.

[0034] Hinge portion 225 is provided at the lower end of front surface 221. Hinge portion 225 is a protrusion that extends along second main body direction D2 on front surface 221 and protrudes forward. When cover portion 22 is attached to dust collection case 211, hinge portion 225 fits into and is housed in rear engagement portion 218.

[0035] Lid operation part 226 is disposed in a mounting recess 228 formed in the upper rear end of outer surface 220 so as to be slidable in the front-to-rear direction. Specifically, lid operation part 226 is biased rearward by an elastic member 229 such as a spring disposed between the wall surface of lid operation part 226 and the wall surface formed in mounting recess 228. When an external force acts on lid operation part 226 toward the front, lid operation part 226 moves forward within mounting recess 228 against the biasing force of elastic member 229. When the external force on lid operation part 226 is no longer acting, lid operation part 226 moves rearward within mounting recess 228 due to the biasing force of elastic member 229.

[0036] The lid side engagement portion 227 is formed near the lower end of the rear wall surface of the lid operation portion 226. The lid side engagement portion 227 is a latch that protrudes rearward. When the lid portion 22 is assembled to the dust collection case 211 and no external force is acting on the lid operation portion 226, the lid side engagement portion 227 engages with the rear side engagement portion 218. In other words, the lid side engagement portion 227 functions as a switchable engagement portion that can be switched between engagement with and disengagement from the rear side engagement portion 218 when the lid portion 22 is assembled to or removed from the dust collection case 211, as described below.

[0037] The lid portion 22 having the above-described configuration can be attached to and detached from the dust collection case 211, as will be described in detail later. However, although the lid portion 22 can be attached to the dust collection case 211 when the dust collection bag 7 is fixed to the holding portion 6, attachment to the dust collection case 211 is restricted when the dust collection bag 7 is not fixed to the holding portion 6 or is not properly fixed thereto. In this case, attachment of the lid portion 22 to the dust collection case 211 is restricted by the abutment portion 214a described above coming into contact with the holding portion 6 described later.

[0038] <Holding part 6> 3 and 4 are external perspective views of the holding portion 6. Fig. 5 and Fig. 6 are rear views of the holding portion 6. Fig. 7 is a cross-sectional view taken along line BB in Fig. 5. Fig. 8 is a cross-sectional view taken along line CC in Fig. 6.

[0039] The holder 6 is molded from synthetic resin. The holder 6 is provided inside the opening 224 of the lid 22, which is the first housing. As shown in Fig. 2, when the lid 22 is assembled to the dust collection case 211, the holder 6 is disposed so as to be located on the front side of the lid 22 (on one side in the first main body direction D1).

[0040] As shown in Figures 3 to 8, the holder 6 is made up of a base 61, a fixing member 62, a detection member 63, and an attachment support portion 64, and is capable of detachably holding a dust bag 7 (described later). Figures 3, 5, and 7 show the holder 6 when the dust bag 7 is attached. Figures 4, 6, and 8 show the holder 6 when the dust bag 7 is not attached. However, the dust bag 7 is not shown in Figures 3 and 7.

[0041] <Base 61> The base 61 is rectangular and has two sides 61a and two sides 61b extending in a direction intersecting the direction in which the sides 61a extend. If the direction in which the sides 61a extend and the direction intersecting (perpendicular to) the direction in which the sides 61b extend are defined as a first direction DD1, the base 61 is a plate-like member having a surface perpendicular to the first direction DD1. In the following description, the direction in which the sides 61a extend is defined as a second direction DD2, and the direction in which the sides 61b extend is defined as a third direction DD3.

[0042] When the lid 22 is attached to the dust collection case 211, the first direction DD1 coincides with or substantially coincides with the first main body direction D1, the second direction DD2 coincides with or substantially coincides with the second main body direction D2, and the third direction DD3 coincides with or substantially coincides with the third main body direction D3. For this reason, in the following description, the first direction DD1 may be referred to as the front-to-rear direction, the second direction DD2 as the left-to-right direction, and the third direction DD3 as the up-to-down direction.

[0043] The base 61 is formed with an air vent 610, which is an opening that penetrates the base 61 in the front-rear direction. When the cover 22 is attached to the dust collection case 211, the center of the air vent 610 coincides or substantially coincides with the central axis X. The air vent 610 communicates with the air intake 213 of the dust collection case 211 when the cover 22 is attached to the dust collection case 211. When the dust collection bag 7 is attached to the holder 6, the air vent 610 communicates with an air vent 710 of the dust collection bag 7, which will be described later. In addition, a check valve 611 is provided in the air vent 610 to prevent air from flowing back from the storage chamber 212 through the air vent 610 toward the air intake 213.

[0044] A lip portion 612 that protrudes rearward is formed on the rear surface of the base portion 61. The lip portion 612 is molded from an elastic synthetic resin such as rubber. The lip portion 612 is a ring-shaped protrusion formed along the outer periphery of the ventilation hole 610.

[0045] A seal member 613 such as a packing is provided on the front side of base 61. Seal member 613 has a cylindrical shape with an inner diameter corresponding to the diameter of vent 610. When lid 22 is attached to dust collection case 211, as shown in FIG. 2 , seal member 613 comes into contact with the rear end of nozzle 214, thereby preventing the airflow and dust contained in the airflow from leaking out from the boundary between vent 610 and intake port 213.

[0046] <Fixing member 62> The fixed member 62 is provided at the lower end of the base 61. Specifically, the fixed member 62 is provided near the center of the lower side 61a of the base 61. The fixed member 62 is provided rotatable in the R3 direction or the R4 direction (see FIGS. 7 and 8) around a rotation axis 621 extending in the left-right direction (second direction DD2). In other words, the fixed member 62 is provided to be movable (i.e., rotatable) relative to the base 61. The fixed member 62 is biased in the R3 direction by a biasing member (not shown), such as a rotation spring.

[0047] The fixing member 62 rotates about the rotation shaft 621 to switch between a state in which the dust bag 7 is attached and fixed to the base 61, as shown in FIGS. 3, 5, and 7, and a state in which the dust bag 7 is not fixed to the base 61, as shown in FIGS. 4, 6, and 8. That is, the fixing member 62 is configured to fix the dust bag 7 to the base 61. In the following description, the position of the dust bag 7 when fixed to the base 61 as shown in FIGS. 3, 5, and 7 is referred to as the "fixed position." The state in which the dust bag 7 is not fixed to the base 61 includes a state in which the dust bag 7 is not attached to the base 61 and a state in which the dust bag 7 is not properly attached to the base 61. In this case, it can be said that the dust bag 7 is not located at the fixed position.

[0048] The structure of the fixing member 62 for fixing the dust bag 7 to the fixed position will be described below.

[0049] As shown in FIGS. 7 and 8, the fixing member 62 has a first extension portion 622 and a second extension portion 623. The first extension portion 622 has a width along the left-right direction and extends rearward from the rotation axis 621. Specifically, when the dust bag 7 is fixed to the fixed position, the first extension portion 622 extends rearward along the first direction DD1 as shown in FIG. 7. When the dust bag 7 is not located at the fixed position, the first extension portion 622 extends rearward and downward as shown in FIG. 8.

[0050] An engagement hook 624 is formed at the rear end of the first extending portion 622. The engagement hook 624 is formed with an inclined surface 625 and a clamping surface 626. The inclined surface 625 is formed on the surface of the first extending portion 622 on the side facing the central axis X. The inclined surface 625 is a surface that becomes increasingly farther away from the central axis X as it extends rearward.

[0051] The clamping surface 626 is formed at the front end of the inclined surface 625 and is a plane that intersects with the inclined surface 625. Specifically, the clamping surface 626 is a plane that is parallel or approximately parallel to the base 61 when the dust bag 7 is located at the fixed position (see FIG. 7). As will be described later, when the dust bag 7 is fixed at the fixed position by the fixing member 62, the plate-like portion 71 of the dust bag 7 is clamped between the clamping surface 626 and the base 61.

[0052] The second extension portion 623 has a width along the left-right direction and extends upward and forward from the rotation shaft 621. However, when the dust bag 7 is not located at the fixed position (see FIG. 8), the front end of the second extension portion 623 is located higher in the up-down direction than when the dust bag 7 is located at the fixed position (see FIG. 7).

[0053] An abutment surface 627 is formed at the front end of second extension portion 623. That is, abutment surface 627 is provided on the opposite side of clamping surface 626 across rotation shaft 621. It can also be said that rotation shaft 621 is provided between the position where abutment surface 627 is provided and the position where clamping surface 626 is provided. When dust collection bag 7 is not located in the fixed position and an operator attempts to assemble lid portion 22 to dust collection case 211, abutment surface 627 abuts (butts against) abutment portion 214a at the rear lower end of nozzle 214.

[0054] The second extending portion 623 extends upward and forward with a length equal to or greater than the rearward extension length of the first extending portion 622. That is, the distance DT1 between the rotating shaft 621 and the abutting surface 627 is equal to or greater than the distance DT2 between the rotating shaft 621 and the clamping surface 626.

[0055] When the dust bag 7, which will be described later, is attached to the holder 6, the fixing member 62 having the above-described configuration engages with the dust bag 7 to fix the dust bag 7. In other words, the fixing member 62 is configured to be able to fix the dust bag 7 to the base 61. More specifically, the fixing member 62 is able to fix the dust bag 7 to the base 61 by engaging with a plate-shaped portion 71, which will be described later, of the dust bag 7.

[0056] <Detection member 63> The detection member 63 is formed by a housing portion 630 , a contact portion 631 , a rod portion 632 , an attachment portion 633 , and an elastic member 634 .

[0057] The storage section 630 is formed by a front storage wall 630a, a rear storage wall 630b, an upper storage wall 630c, a lower storage wall 630d, and left and right storage walls (not shown). A rod portion 632, an attachment portion 633, and an elastic member 634 are housed inside the storage section 630. The front storage wall 630a is provided with the above-mentioned rotation shaft 621.

[0058] 4 and 5, the contact portion 631 extends in the left-right direction and has a surface that is parallel or approximately parallel to the base portion 61. As shown in FIGS. 7 and 8, the contact portion 631 protrudes rearward beyond the rear surface of the base portion 61. When the dust bag 7 is positioned at the fixed position as described below, the contact portion 631 comes into contact with a plate-like portion 71 (described later) provided on the dust bag 7.

[0059] The rod portion 632 is connected to the vicinity of the front right end portion of the contact portion 631 and extends in the front-rear direction. The rod portion 632 may be connected to the vicinity of the front left end portion of the contact portion 631 or to the vicinity of the front center portion of the contact portion 631.

[0060] The mounting portion 633 is formed on the upper part of the rod portion 632 and is biased rearward along the first direction DD1 by an elastic member 634 such as a spring. One end of the elastic member 634 abuts against the front surface of the mounting portion 633, and the other end of the elastic member 634 abuts against the wall surface of the front storage wall 630a.

[0061] When a force acts on the contact portion 631 in the first direction DD1, the contact portion 631, the rod portion 632, and the mounting portion 633 move forward against the biasing force of the elastic member 634 (see FIG. 7). When no such force acts, the mounting portion 633 receives the biasing force of the elastic member 634 and is movable to a position where the rear surface of the mounting portion 633 abuts against the wall surface of the rear storage wall 630b (see FIG. 8). That is, the mounting portion 633 is movable in the first direction DD1 between the front storage wall 630a and the rear storage wall 630b.

[0062] As shown in Fig. 8, when the dust bag 7 is not in the fixed position, no force acts on the contact portion 631 in the first direction DD1. Therefore, the contact portion 631 protrudes further rearward than when the dust bag 7 is in the fixed position (see Fig. 7). At this time, the lower surface of the contact portion 631 abuts against the engaging hook 624 formed on the first extension portion 622 of the fixing member 62. As a result, rotation of the fixing member 62 in the R3 direction is restricted.

[0063] As shown in Fig. 7, when the dust bag 7 is in the fixed position, a force acts on the contact portion 631 in the first direction DD1. Therefore, the contact portion 631 is positioned further forward than when the dust bag 7 is not in the fixed position (see Fig. 8). At this time, the lower surface of the contact portion 631 is no longer in contact with the engaging hook portion 624. As a result, the fixing member 62 is in a state where it has rotated further in the R3 direction than when the dust bag 7 is not in the fixed position.

[0064] As described above, the positions of the contact portion 631, the rod portion 632, and the attachment portion 633 along the first direction DD1 differ depending on whether the dust bag 7 is located at the fixed position or not. Therefore, when the contact portion 631 abuts against the dust bag 7, the detection member 63 functions as a detection member that can detect whether the dust bag 7 is located at the fixed position by the fixing member 62.

[0065] <Mounting support portion 64> The mounting support part 64 is a rectangular member extending in the left-right direction (second direction DD2), and is disposed at an end on the upper side (one side in the third direction DD3) of the base part 61. For this reason, it can be said that the mounting support part 64 is disposed above the ventilation openings 610 and 710 so as to overlap with the ventilation openings 610 (or the ventilation openings 710 of the dust bag 7 when the dust bag 7 is attached) in the up-down direction (third direction DD3).

[0066] A groove-shaped engagement recess 640 is formed on the lower surface of the mounting support part 64. When the dust bag 7 is positioned at the fixed position, part of the upper end of the dust bag 7 is accommodated in the engagement recess 640. This engages the mounting support part 64 and the dust bag 7, and the upper end of the dust bag 7 is held by the holding part 6.

[0067] <Dust collection bag 7> 9 is an external perspective view of the dust bag 7. The dust bag 7 has a plate-shaped portion 71 and a bag portion 72. The plate-shaped portion 71 is formed in a plate shape having two first sides 71a extending in the left-right direction (second direction DD2) and two second sides 71b extending in the up-down direction (third direction DD3). Of the two first sides 71a, the upper first side 71a is formed with a protrusion 711 that protrudes upward. Of the two first sides 71a, the lower first side 71a is formed with a protrusion 712 that protrudes downward.

[0068] The plate-shaped portion 71 has a vent hole 710, which is an opening that penetrates the plate-shaped portion 71 in the front-rear direction. When the dust collection bag 7 is attached to the holder 6, the center of the vent hole 710 coincides or approximately coincides with the center of the vent hole 610 formed in the base 61. In other words, when the cover portion 22 is assembled to the dust collection case 211 with the dust collection bag 7 attached to the holder 6, the center of the vent hole 710 coincides or approximately coincides with the central axis X.

[0069] The diameter of the vent hole 710 is approximately equal to the outer diameter of the lip portion 612 formed on the base portion 61 of the holder 6. The vent hole 710 is an entrance for dust that flows in together with the airflow from the nozzle 214 and passes through when it reaches the bag portion 72.

[0070] The bag portion 72 is attached to the plate-like portion 71 and is made of a breathable material such as nonwoven fabric. The bag portion 72 is a bag-shaped member that captures dust that has flowed in together with the airflow from the nozzle 214 and allows the airflow to pass through. In other words, the dust collection bag 7 is capable of capturing dust inside.

[0071] Dust bag 7 having the above configuration can be attached to and detached from the above-mentioned holding part 6. Below, the attachment of dust bag 7 to holding part 6, the attachment and detachment of lid part 22, and the removal of dust bag 7 from holding part 6 will be explained separately.

[0072] <Attaching the dust bag 7> 4, 6, and 8, a portion of the dust bag 7 is first accommodated in the opening 224 of the lid 22. Then, the protrusion 711 formed on the plate-like portion 71 of the dust bag 7 is inserted into the engagement recess 640 formed in the mounting support portion 64 of the holder 6.

[0073] When a forward force is applied to the lower end of plate-shaped portion 71 while protruding portion 711 remains inserted in engaging recess 640, dust collection bag 7 rotates about protruding portion 711 as an axis, and protruding portion 712 formed on the lower end of plate-shaped portion 71 abuts contact portion 631. When plate-shaped portion 71 rotates further in this state, contact portion 631, rod portion 632, and mounting portion 633 move forward in first direction DD1 against the biasing force of elastic member 634.

[0074] As the contact portion 631 moves forward, the plate-like portion 71, which is in contact with the rear surface of the contact portion 631, is positioned forward of the clamping surface 626 of the engaging hook portion 624. At this time, the state in which the contact portion 631 and the engaging hook portion 624 are in contact with each other is released, and the fixing member 62 rotates in the R3 direction around the rotation shaft 621.

[0075] As a result, as shown in FIG. 7 , a portion of the front surface of the protruding portion 712 of the plate-shaped portion 71 contacts the rear surface of the contact portion 631, and a portion of the rear surface of the protruding portion 712 of the plate-shaped portion 71 contacts the clamping surface 626. Therefore, the lower end of the plate-shaped portion 71 is sandwiched between the clamping surface 626 of the fixing member 62, which is biased in the R3 direction, and the contact portion 631, which is biased rearward along the first direction DD1. That is, a forward force from the clamping surface 626 and a rearward force from the contact portion 631 act on the protruding portion 712 of the plate-shaped portion 71. As a result, the plate-shaped portion 71 is held by the holding portion 6. The dust bag 7 is attached to the holding portion 6 and positioned at the fixed position. At this time, the holding portion 6 holds the plate-shaped portion 71 of the dust bag 7, but does not hold the bag portion 72.

[0076] As described above, the contact portion 631 protrudes rearward beyond the rear surface of the base 61. Therefore, it can be said that the plate-shaped portion 71 is sandwiched between the base 61 and the clamping surface 626 in the first direction DD1. Furthermore, as shown in FIGS. 5 and 7, when the dust bag 7 is located in the fixed position, the contact portion 631 and the clamping surface 626 overlap in the first direction DD1. In other words, the detection member 63 is disposed so as to overlap in the first direction DD1 with the clamping surface 626 when the dust bag 7 is fixed.

[0077] When the dust bag 7 is in the fixed position, the lip portion 612 of the holder 6 is located inside the vent hole 710 of the plate-shaped portion 71, and the edge of the vent hole 710 abuts against the lip portion 612. As described above, the lip portion 612 is elastic, so the abutting portion of the vent hole 710 and the lip portion 612 are in close contact. This prevents the airflow and dust contained in the airflow from leaking out through the vent hole 710 when the cover portion 22 is attached to the dust collection case 211 and the cleaner 1 is operated, as will be described later.

[0078] <Attachment and Detachment of the Lid 22> The following describes the attachment and detachment of the lid portion 22, separately for the case where the dust bag 7 is located at the fixed position and the case where the dust bag 7 is not located at the fixed position.

[0079] <When the dust bag 7 is located at the fixed position> 2 and 10, the assembly of the lid portion 22 to the dust collection case 211 and the removal of the lid portion 22 from the dust collection case 211 will be described. Fig. 10 is a cross-sectional view of the cleaner 1 during the removal of the lid portion 22. Note that Fig. 10 shows the external appearance of the lid portion 22, the holder 6, and the dust collection bag 7.

[0080] 10, when the lid part 22 is attached to the dust collection case 211, the hinge part 225 is housed in the front engagement part 217 with the front side tilted downward more than the rear side. In this state, when the lid part 22 is rotated in the R5 direction with the hinge part 225 as the rotation axis, the rear side of the lid part 22 moves downward.

[0081] 7, when the dust bag 7 is in the fixed position, the fixing member 62 rotates in the direction R3 due to the forward movement of the detection member 63 in the first direction DD1 described above. Therefore, when the dust bag 7 is in the fixed position, the abutting surface 627 formed on the second extension portion 623 of the fixing member 62 is farther away from the central axis X than when the dust bag 7 is not in the fixed position as shown in FIG. 8. In other words, when the dust bag 7 is in the fixed position, the abutting surface 627 is located lower than when the dust bag 7 is not in the fixed position.

[0082] 10, when the lid portion 22 is rotated in the R5 direction, the abutment surface 627 passes below the abutment portion 214a of the nozzle 214. In other words, the abutment surface 627 does not come into contact with the abutment portion 214a. Therefore, the rotation of the lid portion 22 in the R5 direction is not restricted, and the rear side of the lid portion 22 moves downward without being restricted, and the lid-side engagement portion 227 engages with the rear-side engagement portion 218.

[0083] 2, lid portion 22 is assembled to dust collection case 211 constituting main body 21. In this case, fixing member 62 secures dust collection bag 7 and is positioned in a non-restricting position where it does not restrict assembly of lid portion 22, which is the first housing, with dust collection case 211 constituting the second housing. In other words, when fixing member 62 is positioned in the non-restricting position, if lid portion 22 rotates with hinge portion 225, which is a convex portion, fitted into front engagement portion 217, which is a concave portion, lid-side engagement portion 227, which is a switching engagement portion, engages with rear engagement portion 218 formed on the second housing, and lid portion 22 is assembled to main body 21.

[0084] By assembling the lid part 22 to the dust collection case 211 constituting the main body part 21, the lid part 22 is assembled to the main body part 21 so as to be adjacent to the upper side (i.e., in the third main body direction D3) of the dust collection case 211 of the main body part 21. As a result, the dust collection bag 7 is accommodated in the accommodation chamber 212 defined by the lid part 22 and the main body part 21 in cooperation with each other.

[0085] When the lid part 22 is attached to the dust collection case 211, the edge of the opening 224 of the lid part 22 abuts against the edge of the case opening 216 of the dust collection case 211. As described above, a seal member is attached to the edge of the opening 224. Therefore, when the cleaner 1 is in operation, the airflow and dust contained in the airflow are prevented from leaking out from the point where the lid part 22 and the dust collection case 211 abut.

[0086] 10 and assembled to the dust collection case 211, the front end of the sealing member 613 of the holding part 6 is pressed against and comes into contact with the rear end of the nozzle 214. This brings the sealing member 613 and the nozzle 214 into close contact, thereby preventing the airflow and dust contained in the airflow from leaking out.

[0087] When removing the lid portion 22 from the dust collection case 211, first, the lid operation portion 226 is operated forward to release the engagement between the lid side engagement portion 227 and the rear side engagement portion 218. This allows the lid portion 22 to be removed from the dust collection case 211.

[0088] Lid 22, which can now be detached from dust collection case 211, is rotated in the R6 direction around hinge 225 as the rotation axis. Then, as shown in Fig. 10, the rear side of lid 22 moves upward while hinge 225 remains housed in front engagement portion 217. Then, as lid 22 moves rearward while the rear side of lid 22 remains tilted upward more than the front side, hinge 225 is pulled out of front engagement portion 217, and lid 22 is removed from dust collection case 211.

[0089] <When the dust bag 7 is not located at the fixed position> When the dust bag 7 is not in the fixed position, the holding portion 6 is in the state shown in Figures 4, 6, and 8. Specifically, the contact portion 631 protrudes rearward in the first direction DD1 due to the biasing force of the elastic member 634 compared to when the dust bag 7 is in the fixed position, and abuts against the engaging hook 624 formed on the first extension portion 622. This restricts rotation of the fixing member 62 in the R3 direction, and the abutting surface 627 of the second extension portion 623 is positioned higher than when the dust bag 7 is in the fixed position.

[0090] 11 is a cross-sectional view of the cleaner 1 when the lid portion 22 is to be assembled with the holding portion 6 in the above state. Note that in FIG. 11, the external appearance of the lid portion 22 and the holding portion 6 is shown.

[0091] In this case, similarly to when the dust bag 7 is attached to the holder 6, the hinge 225 is housed in the rear engagement portion 218 with the front side tilted downward more than the rear side. In this state, when the lid 22 is rotated in the R5 direction with the hinge 225 as the rotation axis, the rear side of the lid 22 moves downward.

[0092] 8, the abutting surface 627 of the second extending portion 623 is positioned higher than when the dust bag 7 is in the fixed position (see FIG. 7). Therefore, when the lid portion 22 is rotated in the R5 direction, the abutting surface 627 abuts against the abutting portion 214a of the nozzle 214. Therefore, the lid portion 22 is restricted from rotating further in the R5 direction.

[0093] When the abutment surface 627 and the abutment portion 214a come into contact with each other, a force in the direction in which the second extending portion 623 extends (the direction indicated by the arrow R7 in FIG. 11) acts from the abutment portion 214a on the second extending portion 623. That is, the abutment portion 214a abuts the second extending portion 623 of the fixing member 62 downward on the rear side in the direction indicated by the arrow R7 (hereinafter referred to as the abutment direction).

[0094] As described above, the second extending portion 623 extends from the rotation shaft 621 as a starting point. In other words, when the abutting surface 627 and the abutting portion 214a abut against each other, the rotation shaft 621, the abutting surface 627, and the abutting portion 214a are positioned on an axis along the abutting direction R7. At this time, as shown in FIG. 11 , the rotation shaft 621 is positioned rearward and below the abutting surface 627 and the abutting portion 214a. That is, the rotation shaft 621 is positioned in the abutting direction R7 relative to the abutting portion 214a. Therefore, even if the cover portion 22 is further rotated in the R5 direction while the abutting surface 627 and the abutting portion 214a are in abutting contact with each other, the moment of force acting on the rotation shaft 621 can be prevented from increasing.

[0095] In this state, if the operator attempts to further rotate lid portion 22 in the R5 direction, the center (fulcrum) of rotation of lid portion 22 moves to the point where abutment surface 627 and abutment portion 214a abut. Then, lid portion 22 rotates in the R8 direction around the point where abutment surface 627 and abutment portion 214a abut. Therefore, outer surface 220, front surface 221, and rear wall surface 222 that constitute lid portion 22 move rearward relative to front engagement portion 217 of dust-collection case 211. That is, hinge portion 225 formed on front surface 221 moves rearward relative to front engagement portion 217 and disengages from front engagement portion 217. As a result, the engagement between hinge portion 225 and front engagement portion 217 is released.

[0096] That is, when lid 22 rotates with hinge 225, which is a convex portion, fitted into front engagement portion 217, which is a concave portion, fixing member 62 abuts against abutment portion 214a of the second housing before lid engagement portion 227, which is a switching engagement portion, engages with rear engagement portion 218 formed on the second housing. This causes hinge 225 to disengage from front engagement portion 217, and assembly of lid 22 to dust collection case 211 is restricted.

[0097] As described above, when the dust bag 7 is not positioned at the fixed position, the abutment surface 627 abuts against the abutment portion 214a, thereby disengaging the hinge portion 225 from the front engagement portion 217. That is, when the dust bag 7 is not positioned at the fixed position, the fixing member 62 abuts against and interferes with the abutment portion 214a that constitutes the second housing, thereby restricting the assembly of the lid portion 22 to the dust collection case 211. As a result, the assembly of the lid portion 22 to the dust collection case 211 is restricted. In other words, the fixing member 62 in the state shown in FIGS. 4, 6, and 8 is positioned at a restricting position that restricts the assembly of the lid portion 22, which is the first housing, to the dust collection case 211 that constitutes the second housing.

[0098] As described above, the fixing member 62 is located in the non-restricted position when the dust bag 7 is located in the fixed position, and is located in the restricted position when the dust bag 7 is not located in the fixed position. In other words, the fixing member 62 rotates around the rotation shaft 621, thereby being movable relative to the base 61 between the restricted position and the non-restricted position.

[0099] When the dust bag 7 is not located at the fixed position, the contact portion 631 of the detection member 63 restricts the rotation of the fixing member 62 in the R3 direction. In other words, when the dust bag 7 is not located at the fixed position, the detection member 63 restricts the fixing member 62 from moving from the restricted position to the non-restricted position. Alternatively, it can be said that the fixing member 62 moves from the restricted position to the non-restricted position when the detection member 63 detects that the dust bag 7 is located at the fixed position.

[0100] <Removing the dust bag 7> When removing the dust bag 7, first, as described above, the lid operating portion 226 is slid forward, and the lid portion 22 is rotated in the R6 direction about the hinge portion 225 as the rotation axis, and then pulled rearward, thereby removing the lid portion 22 from the dust collection case 211. The removed lid portion 22 is moved to the top of, for example, a trash can. Thereafter, with the opening 224 of the lid portion 22 facing downward, the worker operates the fixing member 62. Specifically, the worker applies force to the second extension portion 623 to rotate the fixing member 62 in the R4 direction.

[0101] As fixing member 62 rotates, engagement between engaging hook 624 and protruding portion 712 formed on plate-shaped portion 71 of dust bag 7 is released. As a result, force no longer acts on plate-shaped portion 71 of dust bag 7 from the rear, and contact portion 631 moves rearward in first direction DD1 due to the biasing force of elastic member 634. As contact portion 631 moves rearward, a rearward force acts on protruding portion 712 of plate-shaped portion 71, causing the vicinity of the lower end of plate-shaped portion 71 to move rearward.

[0102] As the vicinity of the lower end of plate-shaped portion 71 moves rearward, protrusion 711 formed on the upper end of plate-shaped portion 71 disengages from mounting support portion 64, and dust bag 7 falls by gravity into a trash can or the like below. In other words, the worker can dispose of dust bag 7 without directly touching it.

[0103] According to the embodiment described above, at least one of the following advantageous effects can be obtained.

[0104] (1) The cleaner 1 includes a housing 2 including a dust bag 7, a lid 22 serving as a first housing, and a main body 21 serving as a second housing, and a holder 6 provided on the lid 22 and capable of holding the dust bag 7. The holder 6 has a base 61, a fixing member 62, and a detection member 63. The fixing member 62 can fix the dust bag 7 to the base 61. The fixing member 62 is movable relative to the base 61 between a restricting position that restricts the assembly of the lid 22 and the dust collection case 211, and an unrestricted position that fixes the dust bag 7 but does not restrict the assembly of the lid 22 and the dust collection case 211. The detection member 63 abuts against the dust bag 7, thereby detecting whether the dust bag 7 is located in a fixed position where it can be fixed by the fixing member 62. The detection member 63 prevents the fixing member 62 from moving from the restricting position to the non-restricting position when the dust bag 7 is not located at the fixed position.

[0105] This allows the detection member 63, which detects whether the dust bag 7 is attached to the holder 6, and the fixing member 62, which both fixes the dust bag 7 and interferes with the second housing during assembly, to be separate members. This prevents the components from becoming larger and more complex than when a single member is used to perform the three functions of detecting whether the dust bag 7 is attached, fixing the dust bag 7, and interfering with the second housing. This means that the fixing member 62 and the detection member 63 can each be made smaller, and the movement structure can be simplified. As a result, the overall size of the cleaner 1 can be reduced, improving the convenience of the cleaner 1 for the operator.

[0106] (2) When the dust bag 7 is not positioned at the fixed position, the fixing member 62 abuts against and interferes with the main body 21, which is the second housing, thereby restricting the assembly of the lid 22, which is the first housing, and the main body 21. This allows the fixing member 62 to fix the dust bag 7 and restrict the assembly of the lid 22, making it possible to reduce the number of parts.

[0107] (3) When the detection member 63 detects that the dust bag 7 is located at the fixed position, the fixing member 62 moves from the restricting position to the non-restricting position. This allows the lid 22 and the dust collection case 211 to be assembled together when the dust bag 7 is held by the holding portion 6.

[0108] (4) The fixing member 62 can move between the restricted position and the non-restricted position by rotating about the rotation shaft 621. The rotation shaft 621 is provided so as to be positioned in the abutting direction R7 relative to the abutting portion 214a. That is, the rotation shaft 621 is disposed on the axis of the abutting portion 214a in the abutting direction R7. This prevents a large moment from being generated in the rotation shaft 621 due to the force generated when the abutting surface 627 abuts against the abutting portion 214a. As a result, the durability of the fixing member 62 and the rotation shaft 621 can be improved. Furthermore, the abutting of the abutting surface 627 against the abutting portion 214a can prevent the fixing member 62 from rotating in the R3 direction, thereby preventing the lid 22 from being attached to the dust collection case 211 even when the dust collection bag 7 is not positioned at the fixed position.

[0109] (5) Fixing member 62 has clamping surface 626 that fixes dust bag 7 by clamping plate-shaped portion 71 of dust bag 7 between fixing member 62 and base 61 in first direction DD1, and abutting surface 627 that abuts against abutting portion 214a. Abutting surface 627 is provided on the opposite side of clamping surface 626 across rotation shaft 621. This allows fixing member 62 to fix dust bag 7 and regulate the assembly of lid portion 22.

[0110] (6) Distance DT1 between rotation shaft 621 and abutting surface 627 is equal to or greater than distance DT2 between rotation shaft 621 and clamping surface 626. This increases the amount of movement of abutting surface 627 due to rotation of fixed member 62, thereby preventing abutting surface 627 from hitting abutting portion 214a even when dust bag 7 is located in the fixed position. In other words, even when the amount of movement of clamping surface 626 is small, fixed member 62 can be reliably switched between the restricting position and the non-restricting position.

[0111] (7) The main body 21 constituting the second housing is bowl-shaped with a storage section 210, which is a space inside. The lid 22 constituting the first housing is attached to the main body 21 to cover the storage section 210 and also has a lid-like shape that allows the holder 6 to enter the inside of the storage section 210. As a result, when disposing of the dust bag 7, it is sufficient to remove the lid 22 from the main body 21 and carry only the lid 22 above a trash can or the like, eliminating the need to carry the entire cleaner 1. As a result, the process of disposing of the dust bag 7 is simplified, improving workability.

[0112] (8) When the fixing member 62 is in the non-restricted position, if the lid portion 22 rotates with the hinge portion 225, which is a convex portion, fitted into the front engagement portion 217, which is a concave portion, the lid side engagement portion 227, which is a switching engagement portion, engages with the main body portion 21, and the lid portion 22 is assembled to the dust collection case 211 of the main body portion 21. This makes it possible to easily assemble the lid portion 22 to the main body portion 21.

[0113] Furthermore, when the fixing member 62 is in the restricted position and the lid portion 22 rotates with the hinge portion 225 fitted into the front engagement portion 217, the fixing member 62 abuts against the main body portion 21 before the lid side engagement portion 227 engages with the main body portion 21, and the hinge portion 225 disengages from the front engagement portion 217. This prevents the hinge portion 225 and the front engagement portion 217 from being damaged by the force applied by the operator when trying to rotate the lid portion 22 when the abutment portion 214a abuts against the abutment surface 627 and the rotation of the lid portion 22 is restricted.

[0114] (9) The detection member 63 is disposed so as to overlap in the first direction DD1 with the clamping surface 626 when the dust bag 7 is fixed. This eliminates the need to provide a portion of the plate-shaped portion 71 of the dust bag 7 that is detected by the detection member 63, separate from the portion that is clamped by the clamping surface 626. As a result, it is possible to prevent the plate-shaped portion 71 from becoming large.

[0115] Although various embodiments and modifications have been described above, the present invention is not limited to these. Other embodiments that are conceivable within the scope of the technical idea of ​​the present invention are also included within the scope of the present invention. [Explanation of symbols]

[0116] 1 cleaner, 2 housing, 4 motor, 5 fan, 6 holding portion, 7 dust collection bag, 21 main body portion, 22 lid portion, 61 base portion, 62 fixing member, 63 detection member, 71 plate-shaped portion, 72 bag portion, 210 storage portion, 211 dust collection case, 212 storage chamber, 214 nozzle (inlet pipe), 214a abutment portion, 217 front engagement portion, 218 rear engagement portion, 225 hinge portion, 227 lid side engagement portion, 621 rotating shaft, 622 first extension portion, 623 second extension portion, 624 engagement hook portion, 625 inclined surface, 626 clamping surface, 627 abutment surface, 631 contact portion, 632 rod portion, 633 mounting portion, 634 elastic member, 711, 712 Projection, DD1 1st direction

Claims

1. A motor; a fan that rotates by receiving the driving force of the motor; A dust collection bag capable of collecting dust inside; a housing including a first housing and a second housing assembled to the first housing to define a chamber for accommodating the dust bag between the first housing and the second housing; a holder provided on the first housing and capable of holding the dust bag, The holding portion is A base and a fixing member capable of fixing the dust bag to the base; a detection member that can detect whether the dust collection bag is located at a fixed position where the dust collection bag can be fixed by the fixing member by contacting the detection member with the dust collection bag, the fixing member is movable relative to the base between a restricting position at which the fixing member restricts assembly of the second housing to the first housing and a non-restricting position at which the fixing member fixes the dust bag but does not restrict assembly of the second housing to the first housing, The work machine, wherein the detection member restricts the movement of the fixing member from the restricting position to the non-restricting position when the dust bag is not located at the fixed position.

2. The work machine according to claim 1, The fixing member abuts against and interferes with the second housing when the dust bag is not positioned at the fixed position, thereby restricting assembly of the second housing to the first housing.

3. The work machine according to claim 2, The fixing member moves from the restricting position to the non-restricting position when the detecting member detects that the dust bag is located at the fixed position.

4. The work machine according to claim 3, the fixing member is movable between the restricting position and the non-restricting position by rotating about a rotation axis, the second housing has an abutment portion that abuts against the fixed member positioned at the restricted position and abuts the fixed member in a predetermined abutment direction, The rotation shaft is provided so as to be positioned in the abutting direction relative to the abutting portion.

5. The work machine according to claim 4, The dust collection bag has a plate-shaped portion and a bag portion attached to the plate-shaped portion, the fixing member has a clamping surface that fixes the dust bag by clamping the plate-like portion between the fixing member and the base portion in the first direction, and an abutting surface that abuts against the abutting portion, The work machine, wherein the abutting surface is provided on the opposite side of the clamping surface across the rotation shaft.

6. The work machine according to claim 5, A work machine, wherein the distance between the rotation shaft and the abutting surface is equal to or greater than the distance between the rotation shaft and the clamping surface.

7. The work machine according to claim 6, the second housing is bowl-shaped with an internal space and accommodates the motor and the fan; The first housing is assembled to the second housing to cover the space and has a lid-like shape that allows the holding portion to enter inside the space.

8. The work machine according to claim 7, the second housing has a recess; the first housing has a protrusion that fits into the recess and a switchable engagement portion that can be switched between engagement with and disengagement from the second housing, When the fixing member is positioned at the non-restricted position and the first housing is rotated with the convex portion fitted into the concave portion, the switching engagement portion engages with the second housing, and the first housing is assembled to the second housing, When the fixing member is positioned in the restricted position and the first housing rotates with the convex portion fitted into the concave portion, the fixing member abuts against the second housing before the switching engagement portion engages with the second housing, and the convex portion disengages from the concave portion.

9. A motor; a fan that rotates by receiving the driving force of the motor; A dust collection bag capable of collecting dust inside; a housing including a first housing and a second housing assembled to the first housing to define a chamber for accommodating the dust bag between the first housing and the second housing; a holder provided on the first housing and capable of holding the dust bag, The holding portion is A base and a fixing member capable of fixing the dust bag to the base; a detection member that can detect whether the dust collection bag is located at a fixed position where the dust collection bag can be fixed by the fixing member by contacting the detection member with the dust collection bag, The dust collection bag has a plate-shaped portion and a bag portion attached to the plate-shaped portion, the fixing member has a clamping surface that fixes the dust bag by clamping the plate-like portion between the fixing member and the base portion in the first direction, The work machine, wherein the detection member is arranged so as to overlap with the clamping surface in the first direction when the dust bag is fixed.

10. The work machine according to claim 9, the fixing member is movable relative to the base between a restricting position at which the fixing member restricts assembly of the second housing to the first housing and a non-restricting position at which the fixing member fixes the dust bag but does not restrict assembly of the second housing to the first housing, The detection member abuts against the clamping surface to restrict movement of the fixing member from the restricting position to the non-restricting position.

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