JP2014171795A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of easily and reliably holding a tube part at a fixed position with respect to a cleaner body.SOLUTION: A vacuum cleaner 11 includes a cleaner body 13 having an electric blower and a holding part 43. The vacuum cleaner 11 has a tube part 12 that includes a held part 25 being a magnetic body to be held by the holding part 43 and communicates with the suction side of the electric blower, and whose base end side is connected to the cleaner body 13. The holding part 43 has magnets 52. The holding part 43 includes guide parts 47 having guide surfaces 47a and regulation surfaces 47b. The guide surfaces 47a are positioned on both of the sides of the magnets 52 and inclined toward the magnets 52. The regulation surfaces 47b are positioned on the magnet 52 sides of the guide surfaces 47a and regulate both of the side ranges of the held part 25.

Description

  Embodiments described herein relate generally to a vacuum cleaner including a vacuum cleaner body and an air path forming body.

  2. Description of the Related Art Conventionally, for example, there is a so-called canister-type vacuum cleaner that includes a vacuum cleaner body that houses an electric blower and a pipe portion that is connected to the vacuum cleaner body.

  The pipe part of such a vacuum cleaner includes a hose body, a long extension pipe connected to the hand operation part on the distal end side of the hose body, and a suction port connected to the distal end side of the extension pipe As a floor brush. Then, the user drives the electric blower and causes the floor brush to run back and forth on the floor surface by the hand operation unit, so that dust on the floor surface is sucked together with air from the front end side of the floor brush and the vacuum cleaner main body etc. It is designed to collect in the dust collector.

  In such a vacuum cleaner, for example, when there is an obstacle that gets in the way during cleaning, the cleaning may be temporarily interrupted, and after the obstacle is moved, the cleaning may be resumed. At this time, in order to stably hold the long tube portion, the tube portion can be locked to the cleaner body. Therefore, there is a configuration in which a hole is provided in the vacuum cleaner body, a hook portion that is inserted and locked in the hole portion is provided in the tube portion, and the hook portion is hooked in the hole portion to lock the tube portion to the cleaner body. .

  However, in this configuration, the hook portion is aligned and locked with the hole portion. In order to securely hold the tube portion in the vacuum cleaner main body without falling down, the hole portion is generally against the hook portion. Since the gap is set small, it is not easy to align the hook part with the hole part. The hook part must be inserted into the hole part with the aim of the hole part. The property is not good. Therefore, the structure which can latch a pipe | tube part with respect to a cleaner main body more easily is desired.

JP 2012-183248 A

  In the configuration described in Patent Document 1, magnets are provided in the hole portion and in the hook portion, respectively, and the holding of the tube portion is assisted by the adsorption of these magnets. For this reason, since the gap between the hole portion and the hook portion can be made large, the workability of inserting the hook portion is improved. However, even in this configuration, not only the hole portion and the hook portion need to be aligned, but also the magnet portion needs to have sufficient adsorption strength to securely hold the tube portion. When inserting the hook part, the magnets may be attracted to each other and the hook part may be fixed before the hook part is inserted to a desired fixed position, and the hook part may not be fixed at the fixed position. .

  The problem to be solved by the present invention is to provide a vacuum cleaner that can easily and surely hold the air passage forming body at a fixed position with respect to the cleaner body.

  The vacuum cleaner of an embodiment has a vacuum cleaner main body provided with an electric blower and a holding part. The vacuum cleaner also includes a held portion that is one of a magnet and a magnetic body held by the holding portion, and communicates with the suction side of the electric blower so that the base end side is connected to the cleaner body. It has an air path formation body. The holding portion includes a holding portion main body that is the other of the magnet and the magnetic body. The holding part includes a guide part having a guide surface and a defining surface. The guide surfaces are located on both sides of the holding unit main body and are inclined toward the holding unit main body. The defining surface is positioned on the holding unit main body side of the guide surface and defines a range on both sides of the held portion.

It is a perspective view which shows a part of vacuum cleaner of one Embodiment. It is a perspective view which shows the state which hold | maintained the pipe part of the vacuum cleaner same as the above to the vacuum cleaner main body. It is explanatory drawing which shows the holding | maintenance part and to-be-held part of a vacuum cleaner same as the above, (a) shows the state by which the to-be-held part was hold | maintained at the holding | maintenance part main body, (b) hold | maintains the to-be-held part. The operation | movement removed with respect to a main part is shown. It is a perspective view 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 includes a pipe portion 12 that is an air passage forming body, and a vacuum cleaner main body 13 to which the pipe portion 12 is detachably connected. have.

  The pipe part 12 is provided on the distal end side of the hose body 16, the connecting pipe part 15 connected to the cleaner body 13, the flexible hose body 16 communicating with the distal end side of the connecting pipe part 15. The hand operating section 17, the extension pipe 18 detachably connected to the distal end side of the hand operating section 17, and the floor brush 19 as a suction port body detachably connected to the distal end side of the extension pipe 18 and the like And.

  For example, a loop-shaped gripping portion 21 protrudes toward the hose body 16 on the hand operating portion 17, and a plurality of operation setting buttons 22 are provided on the gripping portion 21. These setting buttons 22 are electrically connected to the cleaner main body 13 side by wires (not shown) arranged inside the hose body 16 and the connecting pipe portion 15.

  As shown in FIGS. 1 to 4, the floor brush 19 is rotatably connected to the case body 23 and the rear portion of the case body 23, and is detachably connected to the distal end side (upstream end) of the extension pipe 18. The connecting pipe 24 and a held portion 25 attached to the back side of the connecting pipe 24, that is, a position facing the floor side as a cleaning surface (when used) during cleaning.

  The case body 23 is formed in a hollow shape by, for example, a synthetic resin, and a suction port communicating with the connection pipe 24 is opened on the lower surface facing the floor surface. For example, a rotary cleaning body (rotary brush) or the like may be disposed in the suction port. In this case, for example, an electric motor or the like is accommodated in the case body 23 as a driving means for rotating the rotary cleaning body, and wiring for supplying power to the electric motor is provided inside the extension pipe 18 and the floor brush 19. To place.

  The connection pipe 24 is formed in a straight tube shape, and is pivotally supported by the case body 23 so as to be rotatable in a direction around the axis and a direction intersecting (orthogonal to) the axis.

  The held portion 25 is a magnetic body having rigidity such as iron, and is formed in a long rectangular flat plate shape. The held portion 25 has a cylindrical spacer (sleeve) 26 interposed on the outer surface of the connection pipe 24, is parallel to the axis of the connection pipe 24, and is in the axial direction of the connection pipe 24. They are arranged along the longitudinal direction, and are fixed to the connecting pipe 24 by a fixing member 27 such as a screw.

  The vacuum cleaner main body 13 includes a main body case 29 having large-diameter traveling wheels 28 on both sides and a swiveling wheel (not shown) at the lower portion, and an upper portion, which is outside the main body case 29, is disposed as a dust collecting portion. The dust device 30 is detachable. The cleaner body 13 is configured to be able to travel (move) at least along the front-rear direction on the floor surface by the traveling wheels 28 and the turning wheels. 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 29).

  The main body case 29 is formed of, for example, a synthetic resin, and supports a main body portion 31 located behind the dust collector 30 and a lower front portion of the main body portion 31 to support the lower portion of the dust collector 30. And a protrusion receiving portion 32 as a dust collector supporting portion. Inside the main body case 29, a main body air passage portion (not shown) that is bent in an L shape in a side view is disposed across the main body portion 31 and the protrusion receiving portion 32.

  Running wheels 28 are rotatably supported on both sides of the main body 31. Further, on the upper side of the front portion of the main body 31, for example, a loop-shaped handle 34 for gripping the cleaner main body 13 (main body case 29) is provided so as to protrude rearward. Further, in the main body 31, an electric blower chamber (not shown) is partitioned on one side of the lower portion, for example, the right side, and a power supply chamber (not shown) is partitioned on the other side, for example, the left side. The electric blower chamber accommodates an electric blower 39 and a control circuit unit (not shown) that controls the operation of the electric blower 39. The power supply chamber rotatably accommodates a cord reel device (not shown) as a power supply unit in which a power cord capable of supplying power from an external power source to the electric blower 39 and the like is wound.

  Further, at the lower part of the front part of the main body 31, a communication opening (not shown) that is airtightly connected to the upstream side of the dust collector 30, and a collector attached to the main body case 29 that communicates with the suction side of the electric blower 39. An intake opening (not shown) that is airtightly connected to the downstream side of the dust device 30 is opened. Furthermore, a plurality of exhaust holes 41 communicating with the electric blower chamber and the outside of the main body case 29 are formed on the lower side at the rear part of the main body part 31, and on the other side above the exhaust holes 41, A cord outlet 42 is opened for connecting the power supply chamber to the outside of the main body case 29 and taking in and out the power cord. A holding portion 43 for holding the held portion 25 of the tube portion 12 is attached to the central portion in the left-right direction of the rear portion of the main body portion 31 (one side of the cord outlet port 42).

  The holding part 43 has a unit shape arranged along the vertical vertical direction at the rear part of the main body 31 (the vacuum cleaner main body 13). The holding portion 43 includes a holding base 45 attached to the rear portion of the main body 31 (the vacuum cleaner main body 13), a holding body portion 46 held by the holding base 45, and a guide portion 47 protruding from the holding base 45. , 47. And this holding | maintenance part 43 is located near the upper part of the rear part of the main-body part 31 (vacuum cleaner main body 13), and is spaced apart upwards with respect to the lower part of the main-body part 31 (vacuum cleaner main body 13). That is, the holding portion 43 is disposed at a position spaced upward from the floor surface.

  The holding base portion 45 is integrally formed of, for example, a synthetic resin and is formed in a rectangular shape (rectangular shape) that is long in the vertical direction. In addition, an attachment recess 49, which is an attachment portion for attaching the holding body portion 46, is formed in a rectangular shape in the central portion of the holding base portion 45 in the vertical direction when viewed from the front. Further, the periphery of the holding base 45 is fixed to the rear part of the cleaner body 13 (main body case 29) by a fixing body 50 such as a screw.

  The holding body portion 46 includes a base portion 51 as a base portion, and a magnet 52 that is a magnetic force generating means as a plurality of holding portion main bodies, for example, fixed to the base portion 51 with a double-sided tape or an adhesive. I have.

  The base portion 51 is formed in a long rectangular plate shape with, for example, a rigid metal, and is fitted and accommodated in the mounting recess 49 without a substantial gap, and is substantially flush with the rear surface of the holding base 45. Yes.

  Each magnet 52 is a permanent magnet having a strong attracting force, such as a neodymium magnet, and is formed in, for example, a rectangular plate shape and spaced apart from each other at substantially equal intervals along the vertical direction that is the longitudinal direction of the base portion 51. Has been placed. These magnets 52 have a width that is slightly narrower than the width of the base 51. That is, both sides of each magnet 52 are spaced apart (offset) from the both sides of the base portion 51 toward the center in the width direction. Furthermore, the attracting surfaces 52a that are the rear surfaces of the magnets 52 are substantially flush with each other.

  Each guide portion 47 is integrally formed with, for example, the holding base 45 at positions on the left and right sides of the mounting recess 49 and protrudes rearward with respect to the holding base 45. Each of the guide portions 47 includes a guide surface 47a extending so as to incline toward the magnet 52 from both left and right sides, and a defining surface 47b that is continuous with the guide surface 47a and is located on both sides of the magnet 52. Further, a plurality of reinforcing ribs 47c are formed on the guide portions 47 in the vertical direction along the horizontal direction between the guide base 47a and the holding base 45 at positions on the back side of the guide surface 47b. .

  The guide surfaces 47a and 47a are used to call the held portion 25 approaching the holding portion 43 into the magnet 52. From the front side, which is the magnet 52 side, the front and rear directions in which the held portion 25 is attracted by the magnet 52 It is formed in the shape of a flat surface inclined so as to gradually expand rearward along the direction.

  Each regulation surface 47b is continuously located at the front end on the magnet 52 side of the guide surfaces 47a, 47a, and in the front-rear direction (position of the held portion 25 by the magnet 52) at a position substantially flush with both side surfaces of the mounting recess 49. It is a plane that is formed linearly along the (adsorption direction) and extends in the longitudinal direction in the vertical direction. Therefore, the guide parts 47 and 47 are spaced apart from each other on the left and right, and face each other at the positions of the defining surfaces 47b and 47b. Further, these defining surfaces 47b are opposed to both sides of the magnet 52 through a space portion 54 that is recessed along the front-rear direction, that is, the attracting direction of the held portion 25 by the magnet 52, that is, toward the front side. The range of the held portion 25 in both directions is defined by being positioned close to the held portion 25 held by the magnet 52 via a slight gap. In other words, each regulating surface 47b regulates the movement of the held portion 25, i.e., the tube portion 12, in both directions, and the tube portion 12 with the held portion 25 adsorbed by the magnet 52 moves to the left and right sides by its own weight. And prevent falling.

  On the other hand, a main body suction port 57 to which the connecting pipe portion 15 of the pipe portion 12 is connected is formed on the front surface of the protrusion receiving portion 32, and this main body suction port 57 serves as an opening at the upstream end of the main body air passage portion. ing. Therefore, the main body suction port 57 communicates with the communication opening portion via the main body air passage portion, and can communicate with the upstream side of the dust collector 30 via the communication opening portion.

  The operation of the electric blower 39 is controlled by the control circuit unit according to the operation of the setting button 22. The electric blower 39 is disposed with the suction side as an upper side, for example.

  The control circuit unit is electrically connected to the setting button 22, 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 22. It is configured to set 39 actions.

  In addition, the dust collector 30 can be configured to have an arbitrary dust separation function, but in the present embodiment, for example, the dust is centrifuged and collected from the sucked dust-containing air, and the air from which the dust is separated is collected. Is a dust collection cup that is detachably mounted on the protrusion receiving portion 32 of the main body case 29.

  Next, the operation of the one embodiment will be described.

  When starting the cleaning, first, the dust collecting device 30 is placed on the protrusion receiving portion 32 and attached to the main body case 29. As a result, the dust collector 30 is airtightly connected to the communication opening and the intake opening of the main body case 29, and the dust collector 30 is airtightly connected between the suction side of the electric blower 39 and the main body suction port 57. In this state, it is attached to the main body case 29. If the dust collector 30 is already attached to the main body case 29, these operations are not necessary.

  In this state, the pipe portion 12 is connected to the main body suction port 57 of the cleaner main body 13 (main body case 29). Specifically, the pipe part 12 inserts and connects the connection pipe part 15 to the main body suction port 57, and sequentially connects the extension pipe 18 and the floor brush 19 to the distal end side of the hand operation part 17 as necessary. In this state, the setting button 22 of the hand operation unit 17 is electrically connected to a control circuit unit in the cleaner body 13 (main body case 29) and the like. In addition, when the pipe part 12 is already connected to the cleaner body 13, these operations are unnecessary.

  Then, after the user pulls out the power cord from the cord outlet and connects it to an outlet such as a wall surface, the user sets the operation mode of the electric blower 39 by gripping the grip portion 21 and operating the desired setting button 22. To do. The control circuit unit controls the input of the electric blower 39 corresponding to the set operation mode, and starts the electric blower 39 in the set operation mode.

  The negative pressure generated by the activation of the electric blower 39 acts on the pipe portion 12 via the intake opening, the dust collecting device 30, the communication opening, the main body air passage portion, and the main body suction port 57.

  The user sucks dust together with air from the front end side of the floor brush 19, the extension pipe 18, or the hand operation unit 17 by the action of the negative pressure.

  The dust-containing air, that is, the dust-containing air, is sucked into the dust collector 30 from the pipe portion 12 via the main body suction port 57, the main body air passage portion, and the communication opening portion. Inside, dust is collected by centrifugation. The air in which the dust is collected is discharged from the dust collector 30, passes through the intake opening, is sucked into the electric blower 39, passes through while cooling the interior of the electric blower 39, and becomes exhaust air. The air is exhausted from the electric blower 39 to the outside of the main body case 29 through the exhaust hole 41.

  When the cleaning is completed, the user operates the predetermined setting button 22 so that the control circuit unit reduces the input of the electric blower 39 and stops the electric blower 39.

  Also, if you want to temporarily stop the cleaning work during the cleaning, by operating the predetermined setting button 22 to reduce the input of the electric blower 39 by the control circuit unit to stop the electric blower 39, The pipe portion 12 is held against the cleaner body 13. At this time, in the embodiment described above, the magnet is obtained simply by gripping the gripping portion 21 of the tube portion 12 and causing the held portion 25 located on the back side of the tube portion 12 to approach the holding portion 43 from behind. The held portion 25 is attracted by the magnetic force of 52, and the held portion 25 is guided to the magnet 52 while being guided by the guide surface 47a of the guide portion 47, and is directly opposite to the attracting surface 52a of the magnet 52 and the specified surface. It is adsorbed at a fixed position between 47b and 47b (FIG. 3 (a)). That is, guide portions 47, 47 are provided on both sides of the magnet 52 of the holding portion 43 that holds the held portion 25 provided in the tube portion 12, and each guide portion 47 has a guide surface 47a that is inclined toward the magnet 52, And, by providing each of the regulation surfaces 47b that are located on the magnet 52 side of the guide surface 47a and define the ranges on both sides of the held portion 25, for example, the tube portion with respect to the hole portion (concave portion) provided in the cleaner body As in the conventional case of inserting and locking the hook portion provided on the holding portion 25, the holding portion 25 is simply moved closer to the holding portion 43 without the need for high-precision positioning. The holding part 43 can be easily and reliably held at a fixed position between the regulation surfaces 47b and 47b. Therefore, it is possible to realize the electric vacuum cleaner 11 that can easily and surely hold the tube portion 12 at a fixed position with respect to the vacuum cleaner body 13.

  Moreover, in a state where the held portion 25 is held by the magnet 52 of the holding portion 43, the tube portion 12 is located behind the floor brush 19 (case body 23) on the opposite side of the cleaner body 13 with respect to the held portion 25. By projecting and contacting the floor surface, the front side is supported by the vacuum cleaner body 13, the rear side is the floor surface, and the left and right sides (both left and right sides of the held portion 25) are supported by the regulation surfaces 47b and 47b. It is possible to maintain a standing state. As a result, the gripping part 21 can be kept at a high position separated from the floor surface. For example, the gripping part 21 is gripped when cleaning is resumed, compared with the case where the pipe part is placed on the floor surface. Therefore, it is not necessary for the user to bend and cleaning workability is improved.

  In addition, the holding portion 25 is attracted to the magnet 52 by projecting guide portions 47 projecting rearward along the front-rear direction, which is the attracting direction of the magnet 52, on both sides of the magnet 52. The user will not accidentally pinch their fingers. That is, the guide part 47 functions as a safety device when the held part 25 is attracted to the magnet 52.

  Furthermore, when the cleaning is resumed, the pipe portion 12 is detached from the cleaner body 13. At this time, a magnet having a strong adsorption force such as a neodymium magnet as the magnet 52 in order to securely hold the relatively heavy pipe part 12 with the holding part 43 of the vacuum cleaner body 13 with wiring inside. Therefore, it is not easy to remove the held portion 25 from the magnet 52 simply by pulling the tube portion 12. Therefore, in the present embodiment, a space portion 54 that is recessed concavely forward is formed between the magnet 52 and the defining surface 47b along the front-rear direction that is the attracting direction of the held portion 25 by the magnet 52. As a result, when the gripping portion 21 is gripped and the tube portion 12 is twisted in any one of the left and right directions that are the directions around the axis, the held portion 25 is rotated while the corner portion P of the magnet 52 is pivoted. When the one side portion enters the space portion 54, the held portion 25 is easily peeled off from the magnet 52, so that the holding by the holding portion 43 can be easily released (FIG. 3 (b)).

  Further, by making the held portion 25 provided on the tube portion 12 side a magnetic body, dust or the like on the floor surface is not attracted to the held portion 25 by a magnetic force during cleaning. Similarly, by disposing the holding portion 43 having the magnet 52 for generating a magnetic force closer to the upper side of the cleaner body 13, dust or the like on the floor surface is not attracted to the magnet 52 during cleaning or the like.

  In addition, by using the magnet 52, which is a permanent magnet, as the holding part body, there is no need for a power source or the like, and the held part 25 can be held by the holding part 43 at any time, and the holding part 43 is realized in a space-saving manner. it can.

  In the above embodiment, the dust collecting unit is the dust collecting device 30 that can be attached to and detached from the main body case 29. However, the dust collecting unit may be a built-in dust collecting unit inside the main body case 29, for example, a disposable collecting unit. Any structure such as a dust bag that can be attached to and detached from the dust collection chamber inside the main body case 29 can be used.

  Further, the held portion 25 is attached to the rear portion of the connecting pipe 24 of the floor brush 19, but, for example, depending on the height of the vacuum cleaner body 13, the position of the holding portion, etc. It can be provided at any position on the tip side (upstream side).

  Furthermore, although the held portion 25 is a magnetic body and the holding portion main body is a magnet 52, the same effect can be obtained even if the held portion 25 is a magnet and the holding portion main body is a magnetic body.

  The vacuum cleaner 11 is not limited to a power supply from an external power source by a cord reel device, and may be a so-called cordless type in which a battery such as a secondary battery is incorporated as a power source.

  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 that is an air passage formation body
13 Vacuum cleaner body
25 Hold part
39 Electric blower
43 Holding part
47 Guide section
47a Guide surface
47b Regulatory surface
52 Magnet as holder body
54 Space

Claims (2)

A vacuum cleaner body equipped with an electric blower and a holding part;
An air path forming body that includes a held portion that is one of a magnet and a magnetic body held by the holding portion, communicates with a suction side of the electric blower, and has a proximal end connected to the cleaner body; Comprising
The holding part is
A holder main body which is the other of the magnet and the magnetic body;
A guide surface that is located on both sides of the holding portion main body and is inclined toward the holding portion main body, and a defining surface that is located on the holding portion main body side of the guide surface and defines the range on both sides of the held portion. A vacuum cleaner characterized by comprising a guide portion. The holding portion includes a space portion that is recessed between the holding portion main body and the prescribed surface with respect to the suction direction of the holding portion main body and the held portion. Electric vacuum cleaner.

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