JP2014104254A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of detecting a dust collection bag mounting state and also downsizing a lid part.SOLUTION: A body case 25 comprises a projection body 63 that is advanceably arranged in a body part 31, is projected while being energized toward a lid part 32, and does not permit the block of a dust collection chamber 37 by the lid part 32 in a projection state. The body case 25 comprises a detection body 61 advanceably arranged toward at least one of paired holding grooves 57 and having a detection part 66. The detection body 61 is energized toward the advance direction of the detection part 66 into the holding groove 57, and locks the projection body 63 in a projection state while the detection part 66 has advanced on the side of the holding groove 57. When the detection part 66 is pressurized against energization by a mouth frame 38a of the dust collection bag 38 inserted between the holding grooves 57, the detection body 61 is saved from the side of the holding groove 57 so as to release the lock of the projection body 63 in a projection state.

Description

  Embodiments of the present invention relate to a vacuum cleaner that uses a dust collection bag in a detachable manner.

  2. Description of the Related Art Conventionally, for example, a vacuum cleaner that uses a disposable paper pack as a dust collection bag detachably in a dust collection chamber is known. In order to prevent such a vacuum cleaner from being erroneously driven when the paper pack is not attached to the dust collection chamber, it is necessary to provide a configuration for detecting the attachment of the paper pack.

Japanese Patent No. 4765870 Japanese Patent No. 4765512 Japanese Patent No. 4661335

  In the configuration described in Patent Document 1, a clamp for fixing the paper pack to the dust collection chamber is provided at the upper part of the main body suction port of the main body case. By interfering with the lid portion of the chamber, the lid portion is not allowed to close, and the user is notified that the paper pack is not mounted.

  In the configurations described in Patent Documents 2 and 3, a detection unit that detects the attachment of the paper pack is provided in the front portion of the lid, and when the paper pack is not attached, the detection unit is connected to the main body case. Due to the interference, the lid portion is not allowed to close, and the user is notified that the paper pack is not mounted.

  However, in these configurations, since it is necessary to take a space for the clamp or the detection unit located in the front part of the dust collection chamber on the lid side, the lid part swells upward, and the design of the lid part may be lowered. Not easy.

  Problem to be solved by the invention is providing the vacuum cleaner which can detect the mounting state of a dust bag and can slim a lid part.

  The vacuum cleaner according to the embodiment is a vacuum cleaner that detachably uses a dust collection bag including a mouth frame having a suction opening and a bag-shaped filter medium attached to the mouth frame in communication with the suction opening. This vacuum cleaner has a main body case. Moreover, this vacuum cleaner has the electric blower accommodated in the main body case. Furthermore, this vacuum cleaner has a dust collection chamber formed in the main body case so as to communicate with the suction side of the electric blower. And this vacuum cleaner has a main body inlet port opened to a main body case and connected with a dust collection chamber. The main body case includes a main body portion that houses the electric blower. Furthermore, this main body case is provided so that rotation with respect to a main-body part is possible, and is provided with the cover part which opens and closes a dust collection chamber by rotation. In addition, the main body case includes a holding groove portion that is located on the side of the main body suction port in the dust collection chamber and that forms a pair that holds the side portion of the mouth frame of the dust collection bag. Further, the main body case includes a protrusion that is disposed so as to be able to advance and retreat on the main body, protrudes in a state of being urged toward the lid, and does not allow the dust collection chamber to be blocked by the lid in the protruding state. And this main body case is provided with the detection body which has the detection part arrange | positioned so that advancement / retraction is possible in at least any one of a holding groove part. This detection body is urged toward the direction in which the detection portion advances into the holding groove portion, and when the detection portion advances toward the holding groove portion, the protrusion is locked in a protruding state. And this detection body retreats from the holding groove part side by the detection part being pressed against the urging by the mouth frame of the dust bag inserted between the holding groove parts, and locks the protruding state of the protruding body. To release.

The attached state of the dust bag of the vacuum cleaner of one Embodiment is shown, (a) is the longitudinal cross-sectional view, (b) is the cross-sectional view. FIG. 2 shows a non-attached state of the dust bag of the electric vacuum cleaner, wherein (a) is a longitudinal sectional view thereof and (b) is a transverse sectional view thereof. It is a perspective view which shows a part in dust collection chamber of a vacuum cleaner same as the above. It is sectional drawing which shows a vacuum cleaner same as the above.

  The configuration of one embodiment will be described below with reference to FIGS.

  In FIG. 4, reference numeral 11 denotes a so-called canister-type vacuum cleaner. The vacuum cleaner 11 has a pipe portion 12 that is a suction air passage body (air passage formation body) and a pipe portion 12 that is detachably connected. A vacuum cleaner main body 13.

  The pipe portion 12 includes a hose body 15, and a connection pipe portion 16 connected to the cleaner body 13 is formed on the base end side (downstream end side) of the hose body 15, and the distal end side of the hose body 15 ( A hand operating part for hand operation is provided on the upstream end side). Then, an extension pipe (not shown), a floor brush as a suction port, and the like are detachably connected to the hand operation unit. In addition, a gripping portion that is gripped by the user protrudes from the hand operation portion, and an operation setting button is provided above the gripping portion.

  On the other hand, the cleaner body 13 includes a main body case 25 having large-diameter traveling wheels 23 on both sides and a swivel ring 24 at the bottom, and the floor F, which is a surface to be cleaned, is covered by the traveling wheel 23 and the swivel ring 24. It is configured to be capable of traveling (moving) along at least the front-rear direction. Hereinafter, the front-rear direction and the left-right direction are based on the traveling (moving) direction of the cleaner body 13 (main body case 25).

  The main body case 25 is formed of, for example, a synthetic resin. As shown in FIGS. 1 to 4, the main body portion 31 and a lid portion 32 provided on the upper portion of the main body portion 31 so as to be rotatable in the vertical direction. And. The main body 31 includes an electric blower 34, a control circuit unit as a control unit that controls the operation of the electric blower 34, and a cord reel device as a power supply unit that can supply power to the electric blower 34 and the control circuit unit. And a dust collection chamber compartment 36 provided at the front of the accommodation main body 35, and the upper portion of the dust collection compartment compartment 36 is closed by a lid 32. Thus, the dust collection chamber 37 is partitioned in front of the electric blower 34. A dust collection bag 38 such as a disposable paper pack is attachable to and detachable from the dust collection chamber 37.

  Here, the dust collection bag 38 includes a mouth frame 38a which is a mount formed in a square shape with, for example, cardboard, and a bag-shaped filter medium 38b attached to the mouth frame 38a. A circular suction opening 38c communicating with the inside of the filter medium 38b is opened in the mouth frame 38a. The dust collection bag 38 filters and separates dust contained in the air by the filter medium 38b when the air sucked into the filter medium 38b from the suction opening 38c by the drive of the electric blower 34 passes through the filter medium 38b. It is configured as follows.

  Further, a lid portion 32 is pivotally supported on the front side of the upper portion of the housing main body portion 35. Further, at the rear of the housing main body 35, although not shown, an exhaust hole for discharging the exhaust of the electric blower 34 to the outside, and a cord outlet for allowing a power cord wound around the cord reel device to be taken in and out Are opened. Further, a partition wall 41 extending in the vertical direction and extending in the left-right direction is interposed between the housing main body 35 and the dust collection chamber partition 36, and the partition wall 41 is airtight with the suction side of the electric blower 34. A communication port (not shown) connected to is opened. Therefore, the suction side of the electric blower 34 is airtightly connected to the dust collection chamber 37 through this communication port. Further, the communication port is covered with a filter unit 43.

  In addition, the dust collection chamber section 36 includes a bottom plate portion 45 that protrudes forward from a lower front end (lower portion of the partition wall 41) of the housing main body 35 and constitutes a bottom portion of the dust collection chamber 37, and both left and right sides of the bottom plate portion 45. A side wall portion 46 that rises upward from the front end and protrudes forward from both sides of the front end of the housing main body 35 to constitute both sides of the dust collecting chamber 37, and a front end portion of these bottom plate portions 45 and a front end of the side wall portions 46. And a front wall portion 47 that is continuous with the front portion and constitutes the front portion of the dust collection chamber 37. Therefore, an opening 48 whose periphery is partitioned by the partition wall 41, the side wall portions 46, and the front wall portion 47 is opened above the dust collection chamber partition portion 36. That is, the opening 48 communicates with the upper part of the dust collection chamber 37. In addition, a seal member (not shown) is attached to the edge of the opening 48 to seal the upper part of the dust collecting chamber 37 in pressure contact with the lid 32 rotated downward.

  Further, the front wall portion 47 is formed along the left-right direction, and the upper end portion is a flat facing portion 50 that faces the lower portion of the front end of the lid portion 32. A locking portion (not shown) that locks the lid portion 32 is disposed at the upper end portion of the front wall portion 47. Furthermore, a main body suction port 51 is opened along the front-rear direction at the center portion of the front wall portion 47 in the left-right direction. In addition, on the rear side of the front wall portion 47, that is, on the dust collection chamber 37 side, the holding body portions 52, 52 are formed in a linear longitudinal shape along the vertical direction, located on both sides of the main body suction port 51. . Further, a mounting detection means 53 for detecting the mounting of the dust collecting bag 38 in the dust collecting chamber 37 is attached to the front wall portion 47.

  The main body suction port 51 communicates the dust collection chamber 37 with the outside and communicates coaxially with the suction opening 38c of the dust collection bag 38 attached to the dust collection chamber 37, and is formed, for example, in a circular shape. Yes. Further, the base end side of the connecting pipe portion 16 that is the base end side of the hose body 15 of the pipe portion 12 is inserted and connected to the main body suction port 51, and the connecting pipe of the hose body 15 of the pipe portion 12 is connected. The base end side of the portion 16 is inserted into the suction port 38c of the dust bag 38 while being inserted into the main body suction port 51, and extends inward of the bag-shaped filter medium 38b of the dust bag 38 and communicates therewith. It is like that. Furthermore, an electrical connection portion (not shown) for electrically connecting the pipe portion 12 side connected to the main body suction port 51 and the cleaner main body 13 side is provided in the peripheral portion of the main body suction port 51. Yes.

  Also, the holding body parts 52, 52 are arranged to be separated from each other in the left-right direction. For example, the lower end part and the front end part are continuous with the bottom plate part 45 and the front wall part 47, and the upper end part is from the main body inlet 51. The upper end portion of the dust collecting chamber 37 that extends upward on the lid portion 32 side, that is, in the vicinity of the opening portion 48, in this embodiment, extends upward from the opening portion 48. doing. That is, each holding body portion 52 is directed from the plate-like side plate portion 55 extending in the vertical direction along the front-rear direction and the rear end portion on the side opposite to the main body suction port 51 of the side plate portion 55 toward the central portion side in the left-right direction. And a rear plate portion 56 that is a plate-like restricting portion extending in the vertical direction along the left-right direction.The side plate portion 55 and the rear plate portion 56 allow each holding body portion 52 to extend along the vertical direction. A holding groove portion 57 is defined which is elongated and holds both side portions of the mouth frame 38a of the dust bag 38 by grooves. Further, the rear portion of the upper end portion of the side plate portion 55 is a widened portion 55a that is inclined to the upper rear side, and the upper end portion of the rear plate portion 56 is a dust bag guide that is inclined to the upper rear side. It becomes the inclined part 56a as a part. For this reason, the upper end side of the holding groove part 57 is expanded in the backward direction separated from the main body suction port 51 side.

  The attachment detection means 53 includes a detection body 61 that detects attachment of the dust collection bag 38 to the holding groove portions 57 and 57, and a side coil spring 62 as detection body urging means that urges the detection body 61. A protrusion 63 as a lid stopper located above the detection body 61 and an upper coil spring 64 as a protrusion urging means for urging the protrusion 63 are provided.

  The detection body 61 has a detection portion 66 that faces one holding groove portion 57 and a restricting arm portion 67 that extends from the detection portion 66 to the protrusion 63 side. The detection body 61 is housed in, for example, the detection body housing portion 68 and is provided so as to be movable in the left-right direction. In other words, the detection body 61 is provided in the holding groove portion 57 so as to be able to advance and retreat in the left-right direction intersecting (orthogonal) with respect to the insertion direction of the dust bag 38.

  The detection unit 66 includes a dust collection bag contact portion 71 exposed in one holding groove portion 57 and a protruding shaft portion 72 protruding from the back side of the dust collection bag contact portion 71. The detection unit 66 is arranged to be able to advance and retreat with respect to the holding groove 57.

  The dust bag contact portion 71 is a portion that can come into contact with one side portion of the mouth frame 38a of the dust bag 38 inserted into the holding groove portion 57, and on the insertion side of the dust bag 38 into the holding groove portion 57. It has an inclined guide part 71a formed on a certain upper side. The inclined guide portion 71a is inclined so as to gradually protrude toward the holding groove portion 57 from the upper end portion of the dust bag contact portion 71 to the lower side, which is the opposite side of the dust bag 38. Further, the dust bag contact portion 71 is fitted in an opening 74 opened in the side plate portion 55 of one holding body portion 52. A guide piece portion 74 a for guiding the dust bag contact portion 71 is formed on the edge portion of the opening 74 so as to protrude outward from the side plate portion 55.

  Further, the protruding shaft portion 72 is formed so as to protrude from the dust bag contact portion 71 in a shaft shape, and extends from the side plate portion 55 of one holding body portion 52 to the side wall portion 46 that partitions the side portion of the dust collecting chamber 37. It protrudes, is inserted through the side coil spring 62, and is inserted into the insertion opening 76 that is opened in the detection body accommodating portion 68.

  The restricting arm portion 67 includes a connecting portion 78 extending in a longitudinal direction from the back side to the front side of the dust bag contact portion 71, and a center side in the left-right direction from the front end portion of the connecting portion 78, that is, the main body suction port 51. And a restricting portion 79 extending in the longitudinal direction toward the direction approaching the central axis of the center, and is U-shaped in plan view. The restricting portion 79 locks the protrusion 63 in the protruding state by entering the lower portion of the protrusion 63 in a state where the detection body 61 moves in the direction of protruding into the holding groove portion 57, and the detector 61 holds By retreating from below the protrusion 63 while moving in the direction of retreating from the groove portion 57, the protrusion 63 is unlocked from being locked.

  Further, the detection body accommodating portion 68 is disposed from the side plate portion 55 of the one holding body portion 52 to the side wall portion 46 and the front wall portion 47 from the side opposite to the holding groove portion 57, that is, from the back side, to the detection body 61. A movement allowing portion 81 that allows the movement of the detector 61, and a guide portion 82 that guides the movement of the detection body 61.

  The movement-permitting portion 81 includes a wall portion 84 that is spaced outward (side) on the side opposite to the holding groove portion 57 with respect to the side plate portion 55 of one holding body portion 52 and extends in the vertical direction along the front-rear direction. A connecting plate portion 85 that connects the rear end portion of the wall portion 84 and the side plate portion 55 of the one holding body portion 52 to hide the detection body 61 is provided. For example, the distance between the wall portion 84 and the side plate portion 55 of the one holding body portion 52 is set as a moving stroke of the detection body 61, for example.

  The wall portion 84 is located opposite to the protruding shaft portion 72 of the detecting portion 66 and the side of the connecting portion 78 of the restricting arm portion 67, and the insertion opening 76 is opened.

  The guide portion 82 is formed in a cylindrical shape extending in the left-right direction at a position on the front end side of the wall portion 84, and the base end side of the regulating arm portion 67 is accommodated therein. Further, the guide portion 82 is open on the upper side facing the lower portion of the protrusion 63 and the tip end side of the restricting arm portion 67 is exposed.

  Further, the side coil spring 62 is interposed between the back side of the dust bag contact portion 71 of the detection unit 66 and the wall portion 84 of the detection body accommodating portion 68, and the detection body 61 is connected to the detection portion 66. The dust bag contact portion 71 is biased toward the direction of advancement from the opening 74 to the holding groove portion 57.

  Further, the protrusion 63 is formed, for example, in the shape of a straight bar, and is inserted into a facing opening 87 opened in the facing portion 50 at a position near one side of the upper portion of the front wall portion 47 of the main body 31 so as to move up and down. It is possible to advance and retreat in the direction. Note that a guide frame portion 87a for guiding the protrusion 63 is formed on the edge portion of the opposed opening portion 87 so as to protrude outward from the side plate portion 55. Therefore, the facing opening 87 has a cylindrical shape (boss shape). Further, a flange portion 63a is formed at the lower end portion of the protrusion 63 as a retaining portion protruding in a flange shape to the side. The distance between the lower end portion of the guide frame portion 87a and the detection body accommodating portion 68 is set as the movement stroke of the projection 63 by the flange portion 63a. Further, the upper end portion of the protrusion 63 is a flat lid contact portion 63b facing the lower portion of the lid portion 32.

  Further, the upper coil spring 64 has a lower end fixed to, for example, the guide portion 82 of the detection body accommodating portion 68 and an upper end connected to the protrusion 63. Then, due to the urging of the upper coil spring 64, the protrusion 63 causes the flange portion 63a to abut the lower end portion of the guide frame portion 87a, and the upper end side (lid portion abutting portion 63b) protrudes upward from the facing portion 50. It is comprised so that it may become a protruding state.

  The operation of the electric blower 34 is controlled by the control circuit unit according to the operation of the setting button. The suction side of the electric blower 34 communicates with the intake opening, and the downstream side communicates with the exhaust hole.

  Further, the control circuit unit is electrically connected to the setting button, and the electric blower is operated in an operation mode (for example, strong mode, medium mode, weak mode, automatic mode, stop mode, etc.) set by operating the setting button. Configured to set 34 actions.

  The lid portion 32 is formed in a shape that gradually decreases in thickness from the rear side to the front side. Further, the lid portion 32 is opposed to the lower portion of the front end portion in a state where the facing portion 50 which is the upper end portion of the front wall portion 47 of the main body portion 31 and the dust collecting chamber 37 (opening portion 48) are closed (closed state). A flat abutting portion 91 that abuts is formed, and the abutting portion 91 is held between the holding groove portions 57 at a position on the rear side of the abutting portion 91 that is on the electric blower 34 side (anti-body suction port 51 side). A holding portion 92 that holds the rear side of the mouth frame 38a of the dust bag 38 is formed to project downward in a claw shape. The lid portion 32 is provided with a not-shown locked portion for locking and holding the lid portion 32 to the locking portion on the main body portion 31 side in the closed state, for example, at the front end portion or the like.

  Next, the cleaning operation according to the embodiment will be described.

  When cleaning is started, first, the dust bag 38 is attached to the dust chamber 37 of the main body case 25.

  Here, when the dust collection bag 38 is not attached to the dust collection chamber 37 (not attached), the lid contact portion 63b at the upper end of the protrusion 63 is opposed to the opposing portion by the bias of the upper coil spring 64. 50, and the control arm 67 of the detection body 61 enters below the flange 63a at the bottom of the protrusion 63 protruding upward due to the bias of the side coil spring 62. The protrusion 63 is not allowed to be retracted downward, and is locked so that the protrusion 63 protrudes upward (is not retracted downward) so that the lid 32 is moved downward. When the dust collection chamber 37 (opening 48) is to be closed by rotating it, the lid abutment portion 63b of the projection 63 and the abutment portion 91 of the lid portion 32 are abutted to allow this occlusion. No (FIG. 2 (a) and FIG. 2 (b)).

  When the dust bag 38 is mounted, the mouth frame 38a of the dust bag 38 is formed by holding the holding grooves 57 and 57 with respect to the dust collecting chamber 37 opened by rotating the lid 32 upward. Insert from above. At the time of this insertion, the upper end portion that is the insertion side end portion of the holding groove portions 57 and 57 extends in the vicinity of the opening portion 48 that is the upper end portion of the dust collecting chamber 37, and the rear portions of the holding groove portions 57 and 57 are The lower end portion of the mouth frame 38a extends along the inclined portions 56a and 56a of the holding body portions 52 and 52 by expanding rearward, that is, inward of the dust collection chamber 37 on the side opposite to the main body suction port 51. Thus, the mouth frame 38a of the dust bag 38 is smoothly inserted between the holding groove portions 57 and 57.

  When the mouth frame 38a of the dust bag 38 is inserted between the holding groove portions 57, 57, one side portion of the mouth frame 38a is an inclined guide portion of the dust bag contact portion 71 of the detector 66 of the detector 61. By moving downward while abutting 71a, the detector 61 (detector 66) is gradually pushed sideways against the bias of the side coil spring 62 along the guide piece 74a, The detection body 61 is retracted. For this reason, the restricting arm portion 67 of the detection body 61 is retracted sideways along the guide portion 82 and is extracted from the lower side of the flange portion 63a of the projection body 63 to the side. The lock is released and the protrusion 63 is allowed to retract downward (FIG. 1 (b)).

  Then, when the lid portion 32 is rotated downward, the contact portion 91 of the lid portion 32 and the lid portion contact portion 63b of the projecting body 63 that is unlocked in the protruding state are brought into contact with each other. The body 63 is pushed downward against the bias of the upper coil spring 64, and the lid contact portion 63b is retracted downward until it is substantially flush with the facing portion 50. The upper part (opening 48) of the dust collecting chamber 37 is closed in an airtight state by being locked by the locking part and the locked part on the part 31 side (FIG. 1 (a)). In this state, the holding portion 92 of the lid portion 32 holds the rear portion of the mouth frame 38a, so that the dust collection bag 38 is securely held in the dust collection chamber 37, and the suction opening 38c of the mouth frame 38a is the main body. It is connected to the suction port 51 in an airtight manner.

  If the dust bag 38 is already attached to the dust chamber 37 of the main body case 25, these operations are unnecessary.

  Next, the pipe portion 12 is connected to the main body suction port 51 of the cleaner main body 13 (main body case 25). Specifically, the pipe part 12 inserts and connects the connection pipe part 16 to the main body suction port 51, and sequentially connects an extension pipe and a floor brush to the distal end side of the hand operation part as necessary. The connecting pipe portion 16 is inserted into the suction opening 38c of the mouth frame 38a of the dust collection bag 38 attached to the dust collection chamber 37 and advances inward of the filter medium 38b (FIG. 4). In this state, the setting button of the hand operation unit is electrically connected to the control circuit unit and the like in the cleaner body 13 (main body case 25) through the electrical connection unit. In addition, when the pipe part 12 is already connected to the cleaner body 13, these operations are unnecessary.

  Then, the user sets the operation mode of the electric blower 34 by holding the holding portion and operating a desired setting button. The control circuit unit controls the input of the electric blower 34 corresponding to the set operation mode, and starts the electric blower 34 in the set operation mode.

  The negative pressure generated by the activation of the electric blower 34 acts on the pipe portion 12 through the communication port, the dust collection chamber 37, and the dust collection bag 38.

  And a user inhales dust with air from the front end side of a floor brush, an extension pipe, or a hand operation part by the operation of this negative pressure.

  The air containing the dust, that is, the dust-containing air is guided from the pipe portion 12 into the filter medium 38b of the dust bag 38, and when passing through the filter medium 38b, the contained dust is collected by filtration and collected in the filter medium 38b. Accumulate.

  The air from which the dust is filtered and separated is sucked into the electric blower 34 through the communication port while passing through the filter unit 43 from the dust collecting chamber 37, and passes through the electric blower 34 while cooling and exhausted. It becomes wind and is exhausted from the electric blower 34 to the outside of the main body case 25 through the exhaust hole.

  When the cleaning is completed, the user operates a predetermined setting button so that the control circuit unit decreases the input of the electric blower 34 and stops the electric blower 34.

  When a certain amount of dust accumulates in the dust bag 38, the locking portion and the locked portion release the locking of the lid portion 32 to the main body portion 31 and rotate the lid portion 32 upward. The dust collection chamber 37 (opening 48) is opened by moving, and the mouth frame 38a of the dust collection bag 38 is picked up and pulled out upward from the holding groove portions 57, 57 and removed from the dust collection chamber 37, and then discarded. By removing the dust collecting bag 38, the upper coil spring 64 urges the lid 63 abutting portion 63b at the upper end of the protrusion 63 upward with respect to the facing portion 50, and the side coil spring. Due to the urging of 62, the restriction arm portion 67 of the detection body 61 returns to the state below the flange portion 63a of the lower portion of the projection 63 protruding upward, and the dust collecting chamber 37 is closed by the lid portion 32. Is not allowed.

  In the embodiment described above, the detection unit 66 holds the detection body 61 having the detection unit 66 that is disposed so as to be able to advance and retreat in one side of the holding groove portion 57 that holds the side portion of the mouth frame 38a of the dust collection bag 38. Energized by the side coil spring 62 in the direction of advancement into the groove portion 57, and in the state where this detection portion 66 has advanced toward the holding groove portion 57 side, the protrusion 63 disposed so as to be able to advance and retreat in the main body portion 31, The detection portion 66 is biased by the side coil spring 62 by the mouth frame 38a of the dust bag 38 inserted between the holding groove portions 57, 57 while being locked in a protruding state urged by the upper coil spring 64. When pressed against it, the detection body 61 is moved so that the detection section 66 is retracted from the holding groove 57 side, and the protrusion 63 is unlocked.

  Therefore, when the dust bag 38 is not mounted between the holding grooves 57, 57, the protrusion 63 does not allow the dust collecting chamber 37 to be blocked by the lid 32, and the dust bag 38 is held by the holding groove 57. , 57, the projection 63 is pushed down against the bias of the upper coil spring 64 by the lid portion 32 which attempts to close the dust collection chamber 37, and the dust collection chamber 37 is blocked. By making it possible, it is possible to easily detect whether the dust bag 38 is attached or not, that is, whether the dust bag 38 is attached, depending on whether the dust chamber 37 is closed by the lid 32. In addition, it is possible to reliably notify the user.

  In addition, the detection body 61 that detects the mounting state of the dust bag 38 does not project the detection portion 66 in the holding groove portion 57 and projects upward on the lid portion 32 side. When the dust collection chamber 37 can be closed by the lid portion 32, the dust collection chamber 37 is closed by the lid portion 32 so that it can be retreated to the inside of the main body portion 31. There is no need for space and the lid 32 can be slimmed.

  As a result, it is possible to reduce the size of the main body case 25 of the vacuum cleaner 11, and the range of design choices for the lid 32 is widened.

  Further, the upper side of the holding groove portion 57 on the insertion side of the mouth frame 38a of the dust collection bag 38 extends to the vicinity of the opening 48 which is the end portion on the lid portion 32 side of the dust collection chamber 37, and is separated from the main body suction port 51 side. Therefore, it is easy to insert the mouth frame 38a of the dust bag 38 between the holding groove portions 57, 57.

  In particular, in the present embodiment, a clamp for pressing the mouth frame 38a of the dust collection bag 38 from the upper side is not provided on the upper portion of the front wall portion 47 and the like, so the portion on the lid portion 32 side (upper side) of the dust collection chamber 37 The holding groove portions 57 and 57 (holding body portions 52 and 52) can be easily extended to the end portion of the dust collection chamber 37 on the lid portion 32 side.

  Furthermore, the lid portion 32 has a holding portion 92 that holds the rear side, which is the electric blower 34 side, of the mouth frame 38a of the dust collection bag 38 held between the holding groove portions 57 and 57 in a state where the dust collection chamber 37 is closed. When the dust collection chamber 37 (opening 48) is closed by the lid portion 32, the dust collection bag 38 is reliably protected against the force sucked toward the electric blower 34 by the negative pressure generated by the drive of the electric blower 34. Can be retained.

  In addition, by providing the pipe part 12 that is inserted into the suction opening 38c of the dust bag 38 and communicated with the inside of the filter medium 38b while being connected to the main body suction port 51, the air sucked from the pipe part 12 into the filter medium 38b. And more reliably.

  In the above-described embodiment, the holding body 52 may have a lower end separated from the bottom plate 45 and a front end continuous with the front wall 47, or a front end separated from the front wall 47. The lower end portion may be continuous with the bottom plate portion 45.

  Further, the detection body 61 may be provided with the detection portion 66 at the position of one of the holding groove portions 57, but may be configured such that the detection portion 66 is provided in each of the both holding groove portions 57.

  Further, the detection body 61 locks the protrusion 63 in the protruding state by restricting the movement of the protrusion 63 in the retracting direction by allowing the restriction arm 67 to enter the lower portion of the protrusion 63. It is good also as a structure etc. which lock in the protruding state by latching 63.

  Furthermore, the vacuum cleaner 11 is not limited to the canister type, for example, an upright type in which a floor brush is connected to the lower part of the vacuum cleaner main body 13 (main body case 25) in the vertical direction, or a portable handy device. It can be used correspondingly.

  Although one embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

11 Vacuum cleaner
12 Pipe section
25 Main unit case
31 Main unit
32 Lid
34 Electric blower
37 Dust collection chamber
38 Dust bag
38a Mouth frame
38b Filter media
38c Suction opening
51 Main unit inlet
57 Holding groove
61 Detector
63 Projection
66 Detector
92 Holding part

Claims (4)

A vacuum cleaner using a dust collection bag provided with a mouth frame having a suction opening and a bag-shaped filter medium attached to the mouth frame in communication with the suction opening,
A body case,
An electric blower housed in the body case;
A dust collection chamber formed in the main body case in communication with the suction side of the electric blower;
A main body suction port that is opened in the main body case and communicates with the dust collection chamber;
The body case is
A main body for housing the electric blower;
A lid that is pivotally provided with respect to the main body, and that opens and closes the dust collecting chamber;
A holding groove portion which is located on a side of the main body suction port in the dust collection chamber and forms a pair for holding a side portion of the mouth frame of the dust collection bag;
A protrusion that is arranged so as to be able to advance and retreat in the main body, protrudes in a state of being biased toward the lid, and does not allow the dust collection chamber to be blocked by the lid in the protruding state;
It has a detection part arranged so that advancement / retraction is possible in at least one of the holding groove parts, and this detection part is urged toward the advancing direction into the holding groove part, and this detection part is on the holding groove part side. In the advanced state, the protrusion is locked in a protruding state, and the detection portion is pressed against the urging force by the mouth frame of the dust bag inserted between the holding groove portions, so that the holding groove portion side A vacuum cleaner comprising: a detecting body that retracts and releases the lock of the protruding state of the protruding body. The holding groove portion is expanded in a direction in which the insertion side of the mouth frame of the dust bag extends near the end portion on the lid portion side of the dust collection chamber and is separated from the main body suction port side. The vacuum cleaner described. The lid part has a holding part for holding the electric blower side of the mouth frame of the dust collection bag held between the holding groove parts in a state where the dust collection chamber is closed. The vacuum cleaner described. The vacuum cleaner according to claim 3, further comprising a pipe portion that is inserted into the suction opening of the dust bag in a state of being connected to the main body suction port and communicates with the inside of the filter medium.

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