JP6523692B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner.

  As a stick type vacuum cleaner, there is a vacuum cleaner which can stand on its own. There is a structure which has a convex part in the stick lower part as a structure for self-supporting, and has a crevice which fits with a convex part in a mouthpiece (nonpatent literature 1)

Electrolux ergorapido ZB3012 Instruction Manual Electrolux Available from the following website (as of January 28, 2015) http://www.electrolux.co.jp/Support/Manuals/?product=900+273+101&modeld=ergorapido+Lithium + ZB3012

  However, in the vacuum cleaner described in Non-Patent Document 1, there is a risk that dust may accumulate in the recess of the suction body. There is a risk that independence will not be possible if the garbage accumulates.

  It aims at providing the vacuum cleaner which can solve the above and can stand on its own.

In order to solve the above problems, a suction case, a first connection pipe connected to be rotated in the front-rear direction with respect to the suction case, and a rotation in the left-right direction with respect to the first connection pipe In a suction body having a second connection pipe connected, a rotation axis of the first connection pipe and the second connection pipe is with respect to a rotation axis of the suction case and the first connection pipe. Orthogonal and orthogonal to the length direction of the first connection pipe, the second connection pipe has a protrusion at its tip, and the upper surface of the inlet case is in contact with the protrusion. contact with a first connecting pipe which is connected to be rotated in the longitudinal direction, and a second connecting pipe which is connected to be rotated in the horizontal direction with respect to the first connecting pipe, and the forward right has only abutment surface that restricts the motion of rotation in the direction, into the mouthpiece casing, for urging the first connecting pipe in the longitudinal direction It characterized in that it has a value.

  Furthermore, the width of the projection is narrower than the width of the second connection pipe, and the width of the abutment surface is wider than the width of the second connection pipe.

  It is possible to provide a vacuum cleaner that can stand on its own.

It is a perspective view showing the whole at the time of using a vacuum cleaner as a stick type. It is a left view showing the whole at the time of using a vacuum cleaner as a handy type. It is a center sectional view of the cleaner body shown in FIG. It is an A direction arrow line view of FIG. The CC sectional drawing of FIG. 2 is shown, and it is a locked state of an expansion-contraction pipe. The CC sectional view of FIG. 2 is shown, and it is in the unlocked state of the telescopic pipe. It is a disassembled perspective view which shows the rotation mechanism part of a rotation handle. It is a locked state of the rotation handle in the BB cross section of FIG. It is a lock release state of the rotation handle in the BB cross section of FIG. (A) is the state of the lead wire in the rotary handle in the stick state, and (b) is the state of the lead in the rotary handle in the handy state. It is in the clamp state of the rotating handle. The B section enlarged view of FIG. 3 is shown, and the clamp release state of a rotation handle is shown. It is a right side view showing the whole at the time of using a vacuum cleaner as a handy type. It is an external appearance front view of a dust case. It is an exploded view of a dust case. It is DD sectional drawing of FIG. It is a front view of an inner cylinder. It is an exploded view of an inner cylinder. It is EE sectional drawing of FIG. It is a front view which shows the state which opened the bottom cover of the outer cylinder. It is a side view which shows the state which opened the bottom cover of the outer cylinder. It is FF sectional drawing of FIG. It is GG sectional drawing of FIG. It is sectional drawing which shows another form of a dust dust return prevention surface. It is sectional drawing which shows another form of a dust dust return prevention surface. It is HH sectional drawing of FIG. It is sectional drawing which shows the operation | movement at the time of refuse disposal. It is a perspective view which shows the positional relationship of a dust case and an introductory pipe. It is a figure which shows the flow of the air in a pipe case part. It is II sectional drawing of FIG. It is a front view which shows the positional relationship of a dust case and an introductory pipe. It is a figure which shows the flow of the air inside dust case. It is sectional drawing which shows the airtight structure of a dust case and a cleaner body. It is an external appearance perspective view of a charging stand. It is an exploded perspective view showing a charge stand. It is an expansion perspective view showing the charge terminal of a charge stand. It is a perspective view which shows the main body terminal of a vacuum cleaner. It is sectional drawing which shows the connection state of a charge terminal and a main body terminal. It is a perspective view when a vacuum cleaner is attached to a charging stand in a handy state. It is a perspective view when a vacuum cleaner is attached to a charging stand in a stick state. It is a sectional view showing a mouthpiece. It is a side view when making a vacuum cleaner stand in a handy state. It is a side view showing a Futon mouthpiece. It is a bottom view showing a Futon mouthpiece. It is sectional drawing which shows a futon mouth when a coupling is made to lie. It is a sectional view showing a Futon mouth when a joint is stood up. It is a side view which shows the vacuum cleaner of the handy state which attached the Futon mouthpiece. It is a side view which shows the vacuum cleaner of the stick state which attached the Futon mouthpiece. It is a perspective view which shows the accommodation state of a rotating brush. It is a perspective view which shows the use condition of a rotating brush. It is a side view showing a vacuum cleaner in a handy state when using a rotating brush. It is a side view which shows the vacuum cleaner of the stick state which attached the suction body. It is a side view which shows the use condition which attached another suction body. (A) It is a partial cross section figure of the suction body 3 of the state which has become independent. (B) It is an enlarged view of Fig.54 (a). (A) It is a partial cross section figure of the sucker 3 of the state which has not become independent. (B) It is an enlarged view of Fig.55 (a). It is a figure which shows the lower surface of a suction body. It is sectional drawing of a suction body. (A) It is a lower perspective view of a suction body. (B) It is sectional drawing of Fig.58 (a).

  Hereinafter, modes for carrying out the present invention (hereinafter, referred to as “embodiments”) will be described in detail with reference to the drawings as appropriate. In addition, below, when using it as a stick type | mold and a handy type | mold as front and rear upper and lower, right and left directions, it demonstrates on the basis of front and rear, upper and lower, left and right direction shown in FIG. Moreover, when accommodating a vacuum cleaner in a charging stand and charging, it demonstrates on the basis of front and rear, upper and lower, left and right direction shown in FIG.

  FIG. 1 is an external perspective view showing the whole when using a vacuum cleaner as a stick type.

  As shown in FIG. 1, the vacuum cleaner 100 includes a cleaner body 1 and a dust case 2 (dust collector). In addition, although the case where the suction body 3 was attached to the vacuum cleaner 100 is shown in FIG. 1, the clearance gap nozzle 4 (refer FIG. 2), the applied suction body 5 (refer FIG. 53), and the Futon suction port 6 (refer FIG. And rotary brush 80 (see FIG. 50) as appropriate.

  The vacuum cleaner main body 1 is configured to include a main body portion 10, a telescopic pipe 20, and a rotary handle 30. The dust case 2 and the suction body 3 are detachably attached to the cleaner body 1. The suction body 3 is a power brush type.

  The main body 10 includes a motor case 11, a storage battery case 12, and a pipe case 13. Further, the main body portion 10 is provided with the introduction path 14 to which the dust case 2 is detachably attached and which sends the air including the dust sucked from the suction body 3 to the dust case 2.

  An electric blower 40 (see FIG. 3) is contained in the motor case 11, a storage battery 60 (see FIG. 3) is contained in the storage battery case 12, and an expandable pipe 20 is contained in the pipe case 13.

  At the front end of the vacuum cleaner main body 1, a suction body attachment / detachment button 16 is provided. Depressing the sucker attachment / detachment button 16 enables removal of the sucker 3.

  The telescopic pipe 20 is telescopically supported in a pipe case portion 13 provided in the cleaner body 1. In addition, the telescopic pipe 20 is pulled backward from the rear surface of the main body portion 10. By pressing a push button 24 e provided on the side surface of the main body 10, the expansion and contraction pipe 20 can be expanded and contracted in the front-rear direction. Moreover, when the user is using the cleaner main body 1, it has a locking mechanism so that the expansion-contraction pipe 20 does not shrink. The details of the expansion mechanism and the lock mechanism of the expansion pipe 20 will be described later.

  The rotary handle 30 is a portion that the user holds by hand, and is rotatably supported at the tip of the telescopic pipe 20. The details of the rotation mechanism 33 of the rotation handle 30 will be described later. Further, the rotary handle 30 is formed in a substantially oval and annular shape in a side view. Further, the rotary handle 30 has a grip portion 30s which is a portion gripped by the user when used as a stick type, and a grip portion 30t which is a portion gripped by the user when used as a handy type. Have.

  The rotary handle 30 also has operation buttons 31a and 31b (see FIG. 3). The operation button 31a is operated when used as a stick type, and is provided on the outer surface (upper surface in FIG. 1) of the grip portion 30s. The operation button 31b (see FIG. 3) is operated when used as a handy type, and is provided on the outer surface (upper surface in FIG. 2) of the grip portion 30t.

  The operation button 31a is used in a stick state, and is configured by three buttons of "strong", "standard", and "off". The operation button 31 b is used in a handy state, and is configured to operate “strong”, “standard”, and “off” cyclically with one button. As described above, by configuring the operation button 31 b with one button, it is possible to reduce the possibility that the operation button 31 b is erroneously pressed when used in the stick state.

  FIG. 2 is a left side view showing the whole when using a vacuum cleaner as a handy type. FIG. 2 shows a state in which the gap nozzle 4 is mounted instead of the suction body 3 (see FIG. 1). Moreover, you may use, without mounting | wearing with the suction body 3 or the clearance gap nozzle 4. FIG.

As shown in FIG. 2, substantially the entire telescopic pipe 20 is accommodated in the main body 10 of the telescopic pipe 20.

The pipe case portion 13 extends in the front-rear direction, the telescopic pipe 20 is inserted forward from the rear end portion of the pipe case portion 13, and the gap nozzle 4 is connected to the front end portion of the pipe case portion 13.

The motor case portion 11 is located rearward of a substantially central portion in the longitudinal direction of the pipe case portion 13 and below the pipe case portion 13. Further, a dust case 2 is provided in front of the motor case portion 11.

Storage battery case portion 12 is located rearward of a substantially central portion in the longitudinal direction (front-rear direction) and below motor case portion 11.

The rotation handle 30 is configured to be rotatable in the expansion and contraction direction (longitudinal direction) of the expansion and contraction pipe 20. Further, the rotary handle 30 has a substantially track shape having an opening 32 of an elongated shape in the side view of FIG. The opening 32 has the longitudinal direction of the opening 32 in the axial direction of the expansion pipe 20 when the expansion pipe 20 is accommodated in the pipe case 13 and the rotary handle 30 is folded so as to overlap the upper side of the expansion pipe 20. Parallel to the stretch direction).

  In the grips 30s and 30t, finger fixing recesses 32a and 32b are formed on the surface on the opening 32 side. As a result, when the cleaner main body 1 is a handy type and the user grips the grip portion 30t, it is possible to use by putting a finger on the finger fixing recess 32a. Further, when the vacuum cleaner main body 1 is a stick type (see FIG. 1) and the user grips the grip portion 30s, the user can put the finger on the finger fixing recess 32b and use it. Thereby, the rotary handle 30 can be held firmly. Further, finger fixing concave portions 32a and 32b are formed at two front and rear positions so that the positions can be changed back and forth in the grip portions 30s and 30t. Further, the surface of the rotary handle 30 may be made of a soft material such as a thermoplastic resin so that the user can easily hold it.

The rotary handle 30 has grips 30s and 30t around the elongated opening 32. The telescopic pipe 20 is accommodated in the pipe case 13 in the main body 10, and the rotary handle 30 is turned to the telescopic pipe 20 side. In the moved state, the opening 32 is positioned substantially above the electric blower 40. Further, in a state where the expandable pipe 20 is accommodated in the pipe case 13 in the main body 10 and the rotary handle 30 is rotated to the expandable pipe 20 side, the opening is positioned substantially upward of the storage battery (power storage device) 60 .

  FIG. 3 is a central cross-sectional view of the cleaner body shown in FIG. In addition, FIG. 3 has shown the state which the suction body 3 and the clearance gap nozzle 4 have not mounted | worn with the cleaner body 1. As shown in FIG.

  As shown in FIG. 3, an electric blower 40 is accommodated in the motor case portion 11 of the main body portion 10. Further, in the motor case portion 11, a fixed case 11a for fixing the electric blower 40 is provided. Inside the fixed case 11 a, a main body substrate 50 for controlling the cleaner main body 1 is fixed to the rear of the electric blower 40. A motor case 11 is configured to cover the fixed case 11 a.

The main substrate 50 is composed of a main substrate 50a mounted with a microcomputer or the like to control the operation of the vacuum cleaner 100, and a motor substrate 50b mounted with a semiconductor element or the like driving a motor of the electric blower.

The electric blower 40 is disposed such that the rotation drive shaft 40 a is parallel to the expansion pipe 20 on the lower side of the expansion pipe 20. In addition, air discharged from the electric blower 40 flows to the main body substrate 50 disposed behind the electric blower 40 to cool the main body substrate 50.

  In the main substrate 50, the main substrate 50a and the motor substrate 50b are vertically divided, and parts are mounted on the facing surfaces. Most of the air discharged from the electric blower 40 flows so as to cool the opposingly disposed components (heat generating components) of the main body substrates 50.

  Further, the motor substrate 50b is mounted with a heat radiating portion 50c for radiating heat generated by the semiconductor element for driving the motor, and the heat radiating fins of the heat radiating portion 50c are arranged in a direction along the flow of the exhausted air. doing.

By doing this, it is possible to efficiently arrange in a small size, and to adjust the flow of air to improve the heat dissipation.

Moreover, when the electric blower 40 uses the electric vacuum cleaner 100 as a handy type, the length S1 of the longitudinal direction (front-rear direction) of the opening 32 of the rotary handle 30 is the longitudinal direction (front-rear direction) of the electric blower 40 It is configured to be substantially equal to the total length of the length and the longitudinal length of the main body substrate 50. Thereby, when using the vacuum cleaner 100 as a handy type, since the electric blower 40 and the main body board | substrate 50 are located under the grip part 30t which a user holds, gravity center Ga of the vacuum cleaner 100 (refer FIG. 2) Is close to the grip portion 30s, and the electric vacuum cleaner 100 that is easy to hold even in a handy type can be realized.

A storage battery 60 is accommodated in the storage battery case 12 of the main body 10, and the storage battery 60 is disposed adjacent to the lower side of the electric blower 40. The storage battery 60 is configured of a rechargeable one such as a lithium ion battery or a nickel hydrogen battery. In addition, when using the vacuum cleaner 100 as a handy type, the storage battery 60 is such that the range S1 in the longitudinal direction of the opening 32 of the rotary handle 30 is substantially equal to the length in the longitudinal direction (front-back direction) of the storage battery 60 It is configured. Here, the storage battery 60 in the present embodiment is a battery pack packed by using a plurality of single cells. A single battery may be used depending on the use conditions and the like. Thereby, when using the vacuum cleaner 100 as a handy type, since the storage battery 60 is located under the grip part 30s which a user holds, gravity center Ga of the vacuum cleaner 100 becomes near to the grip part 30t, and the handy type The vacuum cleaner 100 which is easy to hold even in the form of can be realized.

The storage battery 60 is not limited to the configuration disposed below the electric blower 40 as described above, but may be positioned below the opening 32 and configured to be substantially equal to the length S1 in the longitudinal direction. It may be disposed so as to surround the blower 40, or may be disposed in combination with the configuration disposed below the electric blower 40 and the configuration enclosing the electric blower 40. Further, the main body substrate 50 may be provided on the upper surface, the side surface, or the lower surface of the fixed case 11 a depending on the arrangement of the storage battery 60.

The dust case 2 is a cyclone type and is disposed in front of the motor case 11 and has a substantially cylindrical shape. Further, the front end of the dust case 2 is engaged with the dust case fixing projection 13a formed on the pipe case portion 13, and the rear end of the dust case 2 is engaged with the storage battery case portion 12 by a lock button 119 To be locked.

The telescopic pipe 20 includes a lightweight metal pipe 21 such as an aluminum alloy, a resin pipe 22 inserted from the front end 21a (the rear end of FIG. 3) of the metal pipe 21, and a base end of the metal pipe 21 (the front end And the resin pipe 23 inserted from.

The metal pipe 21 is formed to have a length substantially equal to the length in the front-rear direction of the pipe case portion 13. Further, in the metal pipe 21, a plurality of pin receiving holes 21b, 21b, 21b, 21b are formed at intervals along the axial direction (stretching direction).

The resin pipe 22 is fixed via a screw 22a. Further, in the resin pipe 22, a relief hole 22b is formed at a position overlapping with the pin receiving hole 21b.

In the resin pipe 23, a curled cord 23a formed in a spiral shape is inserted. Further, through holes 23 b are formed in the resin pipe 23 at positions overlapping with the pin receiving holes 21 b. The front end of the curled cord 23a is electrically connected to a terminal (not shown) provided at the front end of the pipe case portion 13, and the rear end is electrically connected to the main body substrate 50 and the storage battery 60 by a known method. .

At the boundary between the motor case 11 and the pipe case 13 in the main body 10, a pipe lock mechanism 24 is provided which fixes the length of the expandable pipe 20 stepwise. A handle clamp 25 (clamping means) is provided on the upper surface of the pipe case 13 of the main body 10 to clamp the front end of the rotary handle 30 when the vacuum cleaner 100 is used as a handy type. When the operation button 31 b is used as a handy type, the operation button 31 b is upward, and power can be easily turned on and off.

Further, the main body portion 10 is provided with a main body LED 51 behind the main body substrate 50. The main body LED 51 can light two colors of red and green, and can display the operating state of the cleaner body 1 and the charging state of the storage battery 60. Further, the number of colors of the main body LED 51 may be one color or two or more colors, and the combination of lighting and blinking may indicate the charging completed state of the storage battery 60 or the operation error state of the cleaner main body 1 It may be lit or blinking.

  FIG. 4 is a view on arrow A in FIG. FIG. 4 shows a state in which the telescopic pipe 20 is extended to the maximum.

As shown in FIG. 4, a plurality of pin receiving holes 21 b are formed in the metal pipe 21 at intervals along the axial direction (the expansion and contraction direction, the front and back direction). The pin receiving hole 21b is opened downward with respect to the metal pipe 21, so that it is possible to prevent the liquid such as water from infiltrating into the metal pipe 21 and the dust from invading during use.

5 shows a cross-sectional view taken along the line C-C of FIG. 2 and shows a locked state of the expandable pipe, FIG. 6 shows a cross-sectional view taken along the line C-C of FIG. In addition, since the pipe lock mechanism 24 is symmetrical to the left and right, the pipe lock mechanism 24 will be described below with reference to the pipe lock mechanism 24 on the right side.

As shown in FIGS. 5 and 6, the pipe lock mechanism 24 includes a base portion 24a, a movable portion 24b operating in the vertical direction on the base portion 24a, and lock springs 24c and 24c urging the movable portion 24b upward. The movable portion 24b is integrally formed with a fixing pin 24d, and a push button 24e which pushes the movable portion 24b downward.

The base portion 24a is fixed to the upper portion of the motor case portion 11, and a convex portion 24a1 is formed on the left and right sides of the pin 24d to support the lower ends of the lock springs 24c and 24c.

The movable portion 24b is formed at a position where the concave portion 24b1 into which the upper end of the lock spring 24c is inserted is opposed to the convex portion 24a1. In the movable portion 24b, a tapered portion 24b2 is formed at a position facing the push button 24e.

The lock spring 24c is interposed between the convex portion 24a1 and the concave portion 24b1 and always biases the movable portion 24b upward.

The lower end portion of the pin 24d is held by the movable portion 24b, and operates integrally with the movable portion 24b. The pin 24 d is guided while sliding in the pin holding hole 13 b formed in the pipe case portion 13. Further, since the pin 24 d is configured inside the pipe case portion 13, it can not be seen from the appearance and high design can be obtained.

The push button 24 e protrudes from the side surface of the pipe case portion 13. Further, on the inner surface of the push button 24e, a tapered portion 24e1 which slides on the tapered portion 24b2 of the movable portion 24b is formed.

In the pipe lock mechanism 24 thus configured, as shown in FIG. 5, when the push button 24e is not operated, the movable portion 24b is pushed upward by the elastic return force of the lock spring 24c. The pin 24 d is raised and inserted into the pin receiving hole 21 b of the telescopic pipe 20. For this reason, when the user is using the vacuum cleaner 100, it is preventing that the length of the expansion-contraction pipe 20 changes.

Then, in the state shown in FIG. 5, for example, when the push button 24e on the left side (right side in the drawing) is pushed in the right direction (left direction in the drawing), the taper part 24e1 of the push button 24e slides on the taper part 24b2 of the movable part 24b. Do. At this time, as the movable portion 24b is pushed down against the biasing force of the lock spring 24c by the pushing force of the push button 24e, as shown in FIG. 6, the pin 24d comes out of the pin receiving hole 21b. This makes it possible to extend and retract the telescopic pipe 20.

In addition, when the pin 24d comes out of the pin receiving hole 21b, the pin 24d is biased by the lock spring 24c, so when the expandable pipe 20 moves and the position of the pin 24d matches the pin receiving hole 21b, The pin 24d is inserted into the pin receiving hole 21b, and the telescopic pipe 20 is locked.

Further, by providing the push buttons 24e on both sides of the pipe case 13, the push button 24e can be easily operated whether the user is right-handed or left-handed, and the expansion and contraction operation of the expandable pipe 20 is easy You can Further, by providing the push buttons 24e on both the left and right sides and pressing the push buttons 24e on both sides, the pin 24d can be lowered straight without being cantilevered.

Next, the rotation mechanism 33 of the rotation handle 30 will be described with reference to FIGS. 7 to 9. 7 is an exploded perspective view showing the rotation mechanism portion of the rotary handle, FIG. 8 is a locked state of the rotary handle in the BB cross section of FIG. 1, and FIG. 9 is an unlocked state of the rotary handle in the BB cross section of FIG. is there. FIGS. 8 and 9 illustrate the state of cutting at the position of the lock pin 36 b shown in FIG. 7, not at the center of the pivot shaft of the rotary handle 30.

As shown in FIG. 7, the rotary handle 30 includes a handle body 34a, a handle cover 34b, a right handle joint 35a, a left handle joint 35b, a lock plate 36a, a lock pin 36b, a lock spring 36c, a handle screw 37a, and a handle screw nut. 37b, a lock button 38a, a lock spring 38b, a joint cover 38c and the like.

The handle body 34a has a pivot shaft 34e rotatably supported by the right handle joint 35a. A handle screw insertion hole 34d into which the handle screw 37a is inserted is formed at the radial center of the pivot shaft portion 34e.

The handle cover 34b has a pivot shaft portion 34e rotatably supported by the left handle joint 35b. A handle screw insertion hole 34f through which the handle screw 37a is inserted is formed at the radial center of the pivot shaft portion 34e. In addition, a lock hole 34g is formed in the rotation shaft portion 34e at a position facing the lock pin 36b.

The right handle joint 35a has a substantially cylindrical handle fixing portion 35c rotatably supporting the handle main body 34a, and a cylindrical pipe fixing portion 35d externally fitted to the telescopic pipe 20.

The handle fixing portion 35c has a bottomed cylindrical shape in which the handle cover 34b side (left side in the drawing) is open, and the handle screw 37a is inserted at the center in the radial direction to form a handle screw insertion portion 35e. In the handle fixing portion 35c, screw bosses 35f are formed at a plurality of places around the handle screw insertion portion 35e. Further, the handle fixing portion 35c is formed with a spring support portion 35g on which one end of the lock spring 36c is supported.

The left handle joint 35b is fixed to the right handle joint 35a, and a circular through hole 35i is formed at a position facing the lock pin 36b. Further, a handle screw insertion hole 35j through which the handle screw 37a is inserted is formed at the center of the left handle joint 35b in the radial direction. Further, a screw insertion hole 35k is formed in the left handle joint 35b at a position facing the screw boss 35f.

The lock plate 36a is formed of a circular metal plate, and a hole 36d is formed at the center in the radial direction. Further, in the lock plate 36a, a lock hole 36e is formed on the outer peripheral side of the hole 36d so that the lock pin 36b can move back and forth. Further, notches 36f and 36f are formed for restricting the positioning and rotational movement of the lock plate 36a in the direction of the front and back.

The lock pin 36b is movably supported by the pivot shaft portion 34e in the left-right direction (the pivot shaft direction of the rotary handle 30). The lock pin 36b is biased toward the lock hole 36e of the lock plate 36a by the lock spring 36c.

The handle screw 37a is sequentially inserted through the handle screw insertion hole 34d of the handle main body 34a, the handle screw insertion portion 35e of the right handle joint 35a, the handle screw insertion hole 35j of the left handle joint 35b, the hole 36d and the handle screw insertion hole 34f. After that, it is screwed with the handle screw nut 37b.

The lock button 38a is supported by the rotary shaft portion 34e of the handle cover 34b so as to be depressible. Inside the lock button 38a, a lock release pin 38d (see FIG. 8) is formed at a position facing the lock hole 34g.

The lock spring 38b is interposed between the pivot shaft 34e and the lock button 38a, and biases the lock button 38a in a direction to push up the lock button 38a (left direction in the drawing).

The joint cover 38c is attached to the outer surface of the pivot shaft portion 34c so as to cover the outside of the handle screw 37a.

As shown in FIG. 8, in a state where the rotary handle 30 is locked, the lock pin 36b is biased toward the lock plate 36a by the lock spring 36c and inserted into the lock hole 36e. Thereby, when a user is using the vacuum cleaner 100, it can prevent that the rotating handle 30 rotates.

Then, in the locked state shown in FIG. 8, when the lock button 38a is depressed, the lock release pin 38d formed inside the lock button 38a receives the biasing force of the lock spring 36c while receiving the biasing force of the lock spring 36c. As shown, the lock pin 36b is pushed down to a position where it exits the lock hole 36e. As a result, the unlocked state shown in FIG. 9 is reached, and the pivot shafts 34c and 34e, the lock plate 36a and the lock button 38a are pivotable relative to the right handle joint 35a and the left handle joint 35b. As described above, by depressing the lock button 38a, the rotary handle 30 can be rotated, and the stick type and the handy type can be switched easily and quickly.

  FIG. 10A shows the state of the lead wire in the rotary handle in the stick state, and FIG. 10B shows the state of the lead wire in the rotary handle in the handy state.

As shown in FIG. 10A, in the rotary handle 30, lead wires 39 for connecting the operation buttons 31a and 31b and the main body substrate 50 (see FIG. 3) are provided. The lead wire 39 is connected to the operation button 31a after one end is connected to the operation button 31b, and is wound around the rotation shaft (handle screw 37a) of the rotation mechanism 33 once to pass through the inside of the expandable pipe 20. And the main body substrate 50 (see FIG. 3).

In the stick state shown in FIG. 10A, the lead wires 39 located around the rotation axis of the rotation mechanism 33 are located on the outer peripheral side. On the other hand, the rotary handle 30 is folded, and in the handy state shown in FIG. 10 (b), the lead wire 39 located around the rotation axis of the rotation mechanism 33 is located on the inner peripheral side. By winding the lead wire 39 around the rotation shaft in this manner, it is possible to prevent the bending portion from being concentrated at one place with respect to the lead wire 39, and by causing the lead wire 39 to follow the movement of the rotary handle 30. Breakage of the lead wire 39 can be prevented.

  Next, the handle clamp 25 (clamp mechanism) of the rotary handle 30 will be described with reference to FIGS. 11 and 12. FIG. 11 shows the clamp state of the rotary handle, and FIG. 12 shows the clamp release state of the rotary handle.

As shown in FIG. 11, the handle clamp 25 includes a clamp member 25a for clamping the rotary handle 30, an attachment portion 25b for slidably supporting the clamp member 25a on the pipe case 13 (main body 10), and a clamp member It comprises a clamp spring 25c for urging the rotary handle 25a in a direction (rearward) for clamping the rotary handle 30, and a hooking portion 30a provided on the rotary handle 30.

The clamp member 25a is formed along the front-rear direction (stretching direction), a finger hooking portion 25a1 for hooking a finger at the front end is formed, and a locking portion 25a2 engaged with the rotary handle 30 is formed at the rear end .

The mounting portion 25 b is fixed by screwing to a boss 13 d formed on the upper surface of the pipe case portion 13 via a screw 25 d.

The clamp spring 25c biases the clamp member 25a rearward (in the direction in which the rotary handle 30 is clamped), and is formed of, for example, a compression coil spring. The clamp spring 25 c is disposed between a wall 13 e standing on the upper surface of the pipe case 13 and the clamp member 25 a.

The hooking portion 30 a is formed in a hole formed in the rotary handle 30. Thereby, the user's hand is prevented from touching or the clothes etc. being caught in the hook portion 30a.

In the handle clamp 25 configured as described above, as shown in FIG. 11, when the clamp member 25 a is not operated, the elastic return force of the clamp spring 25 c causes the clamp member 25 a to be pushed backward, thereby causing engagement. The locking portion 25a2 is locked to the hooking portion 30a, whereby the rotary handle 30 is clamped (locked) in a folded state.

Then, as shown in FIG. 12, the finger is hooked on the finger hook portion 25a1 and the clamp member 25a is slid forward while receiving the biasing force of the clamp spring 25c, whereby the hooking portion of the locking portion 25a2 and the rotary handle 30 The locked state with 30a is released. Thereby, the clamp of the rotation handle 30 is released, and the rotation handle 30 can be rotated upward, and the vacuum cleaner 100 can be switched from the handy type to the stick type.

Moreover, when using the vacuum cleaner 100 by a stick type, the clamp member 25a is a state shown in FIG. From this state, when the rotary handle 30 is turned in the folding direction, the taper 30b formed on the outer surface of the rotary handle 30 abuts on the taper 25a3 formed on the locking portion 25a2. Then, by depressing the rotary handle 30, the clamp member 25a slides forward while receiving the biasing force of the clamp spring 25c by the depressing force. Then, when the hooking portion 30a of the rotary handle 30 gets over the hooking portion 25a2, the hooking portion 30a is hooked on the hooking portion 30a by the elastic return force of the clamp spring 25c, and the rotary handle 30 is clamped to the main body 10 Be (fixed).

As described above, by fixing the rotary handle 30 to the main body 10 with the handle clamp 25, rattling of the rotary handle 30 can be prevented. Further, since the lock can be released by sliding the clamp member 25a forward, the lock of the rotary handle 30 can be prevented from being released during use.

  FIG. 13 is a right side view showing the whole when using a vacuum cleaner as a handy type.

An exhaust port 10a is provided on the side surface of the main body portion 10 (motor case portion 11), and an exhaust filter (not shown) is provided inside the exhaust port 10a. Although FIG. 13 illustrates the case where the exhaust port 10a is provided only on one side in the left-right direction, the exhaust port 10a may be provided on both the left and right sides of the main body 10 (motor case 11).

The exhaust port 10a is formed in a lattice shape substantially parallel to the longitudinal direction (front-rear direction) of the motor case portion 11, and is formed in the lower part of a surface projecting in a circular shape. Since each opening by a lattice is formed downward by this, when a user holds grip part 30t and is using it as a handy type, it is effective in the exhaust air of electric blower 40 not hitting a user directly. Moreover, when using it as a handy type, although the cleaner body 1 may be temporarily put on the floor etc., even when liquid such as water is accidentally spilled from the upper side of the main body 10, the main body 10 The liquid can be prevented from entering the inside of the battery, and the failure of the electric blower 40 and the storage battery 60 can be prevented. Further, since the user assumes right-handedness, by providing the exhaust port 10a on the right side of the cleaner body 1, the exhaust gas is prevented from directly hitting the user. In addition, an exhaust port may be provided on the left side to cope with the case where the user is left-handed, or provided on the left and right sides not only on one side to disperse the air volume of the exhaust, the exhaust directly hits the user. It may be suppressed.

  Next, the structure and operation of the dust case 2 will be described with reference to FIGS. 14 to 33. FIG. 14 is an external front view of the dust case. In addition, FIG. 14 is the state seen from the pipe case part 13 (refer FIG. 2) side. In the following description of FIGS. 14 to 33, the front and back direction in the drawings will be referred to as the up and down direction.

As shown in FIG. 14, the dust case 2 has a function of separating the air including the dust sucked by the suction body 3 (see FIG. 1) and the gap nozzle 4 (see FIG. 2) into dust and air and collecting the dust. Have.

In addition, the dust case 2 has an inflow port 149 connected to the introduction pipe 14 (see FIG. 1). The air containing dust that has flowed into the inflow port 149 is separated into dust and air in the dust case 2 and then discharged from the top of the dust case 2.

  FIG. 15 is an exploded view of the dust case.

As shown in FIG. 15, the dust case 2 includes an outer cylinder 128, an inner cylinder 129, a dust collection filter 130, a filter case 131 for storing the dust collection filter 130, an upper cover 132, and a bottom cover 133.

The outer cylinder 128 is a cylindrical body having an opening at the top and the bottom, and the opening at the lower part of the outer cylinder 128 is opened and closed by the bottom cover 133.

The inner cylinder 129 has a filter case 131 on the upper portion of the inner cylinder 129 and is integrated with the filter case 131. Then, the filter case 131 integrated with the inner cylinder 129 is inserted from the opening at the top of the outer cylinder 128.

The dust collection filter 130 is accommodated in the filter case 131, and the upper cover 132 is attached to the upper portion of the outer cylinder 128, thereby forming an integrated dust case 2 as shown in FIG. At this time, the inner cylinder 129 is mounted so as to be substantially concentric with the outer cylinder 128.

  FIG. 16 is a cross-sectional view taken along the line DD of FIG.

As shown in FIG. 16, when the inner cylinder 129 is attached to the outer cylinder 128, a space for separation and dust collection of dust is formed between the outer cylinder 128 and the inner cylinder 129. Of the space formed by the outer cylinder 128 and the inner cylinder 129, the rear portion (upper portion in the drawing) is the dust separation portion 134 (see FIG. 16), and the front portion (the lower portion in the drawing) is the dust storage portion 135 (see FIG. 16) Become. The dust separation unit 134 is a space for separating dust and air carrying the dust, and the dust storage unit 135 is a space for collecting and storing dust.

The upper lid 132 is a substantially cylindrical body whose upper and lower portions are opened, and is formed to be larger than the outer diameter of the filter case receiving portion 128a so as to cover the filter case receiving portion 128a provided on the upper portion of the outer cylinder 128 described later. .

In the dust case 2, the upper lid 132 and the filter case receiving portion 128a can be fixed by rotating the upper lid 132 from the state where the upper lid 132 is put on the filter case receiving portion 128a. A notch (not shown) is formed on the inner surface of the upper lid 132 so that the upper lid 132 can be covered only at a predetermined position on the filter case receiving portion 128a, and a projection (not shown) is provided on the filter case receiving portion 128a. Is formed. When the upper lid 132 is pressed to the outer cylinder 128 side in a state where the notch and the protrusion are combined, and the upper lid 132 is rotated, the protrusion enters the space of the notch and the upper lid 132 can be fixed to the outer cylinder 128. Further, the upper lid 132 is provided with a lock button 119 to fix it to the cleaner body 1.

The dust collection filter 130 is composed of a frame body and a filter member 147 folded in a pleated manner in the frame body. The wave direction of the filter member 147 is preferably longitudinal (gravity acting direction) (see FIG. 15). This is to make it easy to drop the fine dust attached to the filter member 147. Further, by folding the filter member 147 in a pleated shape, the filter area can be increased, and the pressure loss due to the filter member 147 can be reduced.

The filter member 147 is, for example, a high efficiency HEPA filter (High Efficiency Particulate Air Filter). The HEPA filter is an air filter having a particle collection rate of 99.97% or more with respect to particles having a particle size of 0.3 μm at a rated air volume, and having an initial pressure loss of 245 Pa or less.

In addition, it is desirable that the dust collection filter 130 be washable by the user. Also, another filter such as a sponge filter (not shown) may be provided at the front of the dust collection filter 130. The sponge filter desirably extends the frame of the dust collection filter 130 to the front side so as to be fitted into the frame. Also, it is desirable that the sponge filter be washable by the user. As a result, the dust collection filter 130 is less likely to be soiled directly by dust, and the maintenance is improved.

In addition, the dust collection filter 130 is fitted in the filter case 131 provided on the upper portion of the inner cylinder 129. Therefore, the dust collection filter 130 is located between the upper lid 132 and the filter case 131 described above. In order for all the air that has passed through the mesh member 136 of the inner cylinder 129 to pass through the dust collection filter 130, it is necessary to press the dust collection filter 130 between the upper lid 132 and the filter case 131. Therefore, the dust collection filter 130 is provided with a packing 148 for maintaining the airtightness between the upper lid 132 and the filter case 131 on the outer periphery.

The packing 148 is formed of a rubber member or the like on the upper and lower surfaces of a collar 130 a provided on the outer periphery of the dust collection filter 130. When the dust collection filter 130 is attached to the filter case 131, the lower surface side of the packing 148 and the flange portion 131a at the top of the filter case 131 are in contact with each other. An airtight surface 132a is provided on the upper portion of the upper lid 132. When the upper lid 132 is covered from above the dust collection filter 130 as described above, the upper surface side of the packing 148 is in contact with the airtight surface 132a, and the upper lid 132 is fixed. The dust collection filter 130 is pressed between the upper lid 132 and the filter case 131. At this time, as described above, the space between the packing 137 provided on the lower portion of the filter case 131 and the outer cylinder 128 is also press-contacted so as to maintain airtightness.

Furthermore, the upper surface of the dust collection filter 130 is also provided with a packing 130 b for air tightness holding. The packing 130 b is provided so as to protrude above the top surface of the upper lid 132. When the dust case 2 is mounted on the cleaner body 1, the packing 130b keeps the vacuum cleaner body 1 and the dust case 2 airtight.

  The inner cylinder 129 will be described with reference to FIGS. 17, 18 and 19. FIG. 17 is a front view of the inner cylinder, FIG. 18 is an exploded view of the inner cylinder, and FIG. 19 is a cross-sectional view taken along the line E-E of FIG.

As shown in FIG. 17, the inner cylinder 129 is configured to include an upper cylinder 129a having an intake portion 129c at the upper part, and a lower cylinder 129b at the lower part having a larger diameter than the upper cylinder 129a.

An intake portion 129c is provided on the side surface (circumferential surface) of the upper cylinder 129a, and is formed of a lattice-like frame (support bone). Although the dust case 2 is a frame (support bone) in the vertical direction, it may be a grid having a frame (support bone) in the vertical and horizontal directions.

The mesh member 136 is stretched around the outer peripheral surface of the intake portion 129c. The mesh member 136 is held on the frame (support bone) by coating or insert molding or the like. Further, by providing the mesh member 136 in the intake portion 129c, the upper cylinder 129a has a filter function and suppresses the inflow of fine dust into the inside of the inner cylinder 129. The mesh member 136 may be polyester or metal (for example, stainless steel).

Further, the intake portion 129c may be provided with a plurality of small diameter through holes (holes with a diameter of about 2 mm that can be molded with a mold) instead of a frame (support bone). Unlike the case in which the mesh member 136 is bridged in a frame (support bone), the one provided with such a through hole is effective against strength and tearing of the mesh member 136 and has an advantage that secondary molding is not necessary. is there.

A filter case 131 is integrally formed on the upper side of the upper cylinder 129a. The filter case 131 is substantially cylindrical and configured concentrically with the upper cylinder 129a. Further, the filter case 131 is open at its upper portion, and has an opening portion 131 b which communicates with the internal space of the upper cylinder 129 a at its lower portion at a substantially central portion. In addition, although the upper cylinder 129a and the filter case 131 are integrally configured, they may be detachable.

In addition, a packing 137 is provided below the filter case 131. When the filter case 131 is housed in the filter case receiving portion 128 a of the outer cylinder 128 described later, the packing 137 is in contact with the outer cylinder 128 and the filter case 131 while maintaining the air tightness.

The packing 137 provided in the filter case 131 has a structure (removable structure) in which a ring-shaped rubber member is attached to the recess 159 in the lower part of the filter case 131. However, when cleaning the dust case 2, the packing 137 may be removed, and the attachment of the packing 137 may be forgotten. Therefore, even if the filter case 131 and the packing 137 are integrally molded (secondary molding) I do not care.

As shown in FIG. 18, the lower cylinder 129b of the inner cylinder 129 is concentrically formed with the upper cylinder 129a (see FIG. 7), and is substantially cylindrical and has a closed upper surface. In other words, the lower cylinder 129b is shaped such that the bottom surface is open and has a space 138 (see FIG. 19).

Further, the inner cylinder 129 is provided with an umbrella portion 139 whose shape of the lower cylinder 129b is offset so as to be contained in the space 138 (see FIG. 19) of the lower cylinder 129b, and the upper surface of the space 139a formed in the umbrella portion 139. And a cylindrical body 140 formed to project downward from the inside of the space 139a and be convex.

The cylindrical body 140 is configured concentrically with the umbrella portion 139, the bottom surface 140a is closed, and has a substantially hemispherical shape. In addition, the cylindrical body 140 is tapered so as to be tapered toward the bottom surface 140a. By forming the cylindrical body 140 into a tapered shape, it becomes a container shape that expands downward together with the tapered portion at the lower end of the outer cylinder 128 described later, so that it is easy for the dust to fall off at the time of dust disposal Become. The diameter of the cylindrical body 140 may be reduced in order to expand the dust collection volume.

As described above, by including the umbrella portion 139 in the lower cylinder 129 b and providing a sliding mechanism that slides in the vertical direction, dust can be easily discharged at the time of dust disposal. The umbrella portion 139 is accommodated in the lower cylinder 129b except during dumping, such as suction, and slides downward when dumping, so that dust in the dust case 2 is pushed out.

The sliding mechanism includes a cylindrical spring case 141 with a bottom, a piston portion 142, a stopper 143, a screw 144, and a spring 145 substantially at the center of the umbrella portion 139.

As shown in FIG. 19, the spring case 141 includes a spring seat 141a and a spring shaft 141b, and the outer periphery of the spring case 141 is covered by the above-described cylindrical body 140.

The piston portion 142 is configured to be nested in the spring case 141. The spring shaft 141 b is configured to be fastened with a screw 144 so that the stopper 143 can be fixed. After the spring 145 is inserted from above into the spring case 141 and the nested piston portion 142 integrated with the lower cylinder 129b is mounted, the stopper 143 is fastened to the spring shaft 141b with a screw 144 or the like.

Such a structure constitutes a sliding mechanism of the umbrella portion 139. The stopper 143 slides to a stopper receiving portion 129 d provided on the upper surface of the lower cylinder 129 b. Therefore, as described above, the sliding distance is less than the height of the space 138 of the lower cylinder 129b, and the height of the stopper 143 is substantially equal to the sliding distance.

In the dust case 2, the spring case 141 is formed as a separate part, and the umbrella portion 139 is removable. Fixation of the umbrella portion 139 and the spring case 141 is performed by a lock mechanism (not shown) provided on both sides, and attachment / detachment is performed by rotating the umbrella portion 139. Further, a notch 141c is provided on the side surface of the spring case 141, and a protrusion (not shown) provided on the piston portion 142 is fitted to the notch 141c, and serves as a rotation stopper when the umbrella portion 139 is attached and detached. ing. By providing such an attachment / detachment structure of the umbrella portion 139, even when dust enters into the lower cylinder 129b, it is possible to remove the dust by removing the umbrella portion 139. In addition, even when the inner cylinder 129 is washed, the water can be easily removed because it can be disassembled, and the maintenance becomes easy. Although the umbrella portion 139 and the spring case 141 are separate parts, the umbrella portion 139 and the spring case 141 may be integrally formed. In that case, molding with a mold becomes possible by making the cylinder 140 a separate part.

The outer cylinder 128 will be described with reference to FIGS. 20 to 26. Fig. 20 is a front view showing a state in which the bottom cover of the outer cylinder is opened, Fig. 21 is a side view showing a state in which the bottom cover of the outer cylinder is opened, Fig. 22 is a sectional view taken along the line F-F in Fig. 21, Fig. 23 is a view FIG. 24 is a cross-sectional view showing another form of the dust and dirt return prevention surface, FIG. 25 is a cross-sectional view showing still another form of the dust and dirt return prevention surface, and FIG. FIG. 27 is a cross-sectional view showing the operation at the time of dumping the waste.

As shown in FIG. 20 and FIG. 21, the outer cylinder 128 is a substantially cylindrical body whose upper and lower portions are open, and one round of the outer diameter of the filter case 131 so as to enclose the filter case 131 (see FIG. 15) in the upper part. A large filter case receiver 128a is provided.

The filter case receiving portion 128a is formed with a flange portion 128b that protrudes to the outer surface side and the inner surface side. The bottom surface of the upper lid 132 (see FIG. 15) is in contact with the outer surface side of the flange portion 128b, and the outer diameter of the flange portion 128b is substantially equal to the outer diameter of the upper lid 132.

Further, although not described in detail, the notch portion is provided in one place in the filter case receiving portion 128a, and the notch portion is cut out so as to avoid the projection portion provided on the outer periphery of the filter case 131. Therefore, by aligning the position of the notch portion and the protruding portion of the filter case 131, the inner cylinder 129 to be inserted into the outer cylinder 128 is positioned.

Further, the height of the filter case receiving portion 128a is higher than the sliding distance of the inner cylinder 129 described above. This is because the filter case 131 fits within the filter case receiving portion 128a when mounting the inner cylinder 129 with the bottom lid 133 described later closed (with the umbrella portion 139 (see FIG. 17) protruding). If the filter case 131 exceeds this height, the inner cylinder 129 will not be stable and mounting will be difficult.

The inner diameter of the flange portion 128b is smaller than the outer diameter of the packing 137 (see FIG. 15) provided at the lower portion of the filter case 131 (see FIG. 15), and the flange portion 128b is fixed when the filter case 131 (see FIG. 15) is fixed. The packing 137 is in pressure contact with the upper part of the and keeps the air tightness.

A bottom lid 133 is provided so as to be openable and closable at an opening on the opposite side (lower portion of the outer cylinder 128) of the filter case receiving portion 128a. The details of the shape of the bottom cover 133 will be described later.

An inlet 149 and a lid lock mechanism 150 are provided on the side surface of the outer cylinder 128. As shown in FIG. 23, the inflow port 149 is provided in a plane (b) parallel to the horizontal axis center line (b), and the inflow port outer wall surface 149a is located outside the outer wall surface 128c of the outer cylinder 128. , And the outer cylinder 128 by a tangent line S2. Further, the opening of the inflow port 149 is substantially square. Therefore, the inlet outer wall surface 149a is not parallel to the longitudinal center line (c). In other words, the inflow port 149 protrudes outside the outer diameter of the outer cylinder 128. This is to prevent the inner cylinder 129 and the inflow port 149 concentrically provided on the outer cylinder 128 from overlapping with each other as viewed from the surface of the inflow port 149.

By the way, when the inner cylinder 129 is configured to be exposed from the front (surface on the opening side) of the inflow port 149, the air containing the inflowing dust collides with the inner cylinder 129, and the dust separation performance is lowered. In addition, since the side surface of the inner cylinder 129 has a filter structure in which the mesh member 136 (see FIG. 15) is stretched as described above, problems such as dust sticking to the mesh member 136 occur, and suction force There is also a risk of decline.

Therefore, arranging the inlet 149 as described above is also effective in reducing pressure loss and noise. Incidentally, when the inflow port 149 having the same opening area as the dust case 2 is accommodated in the outer diameter of the outer cylinder 128, the above-mentioned failure occurs because the inner pipe 129 can be exposed from the inflow port 149. Therefore, it is necessary to reduce the width direction of the inflow port 149, and the flow velocity is increased, resulting in an increase in pressure loss and noise. In order to prevent pressure loss and noise from increasing, it is also conceivable to change the aspect ratio of the inflow port 149 to make it an elongated inflow port 149 to secure an opening area, but it is longitudinally long (vertical direction in FIG. 20). When the inlet 149 is used, the height of the dust case 2 is increased, and the dust case 2 is enlarged. The vacuum cleaner 100 is a stick type / handy type vacuum cleaner, and a compact vacuum cleaner main body 1 is desired, and the dust case 2 also needs to be compact. Therefore, by adopting the dust case 2 described above, it is possible to provide the vacuum cleaner 100 in which the cleaner body 1 is made compact.

Further, the inflow port 149 is provided on a surface (surface) parallel to the horizontal axis center line (a) shown in FIG. 23, and the surface of the inflow port 149 is inside (outside the outer diameter of the outer cylinder 128) It is located on the axis center line (i) side. Since the introduction pipe 14 (see FIG. 1) to be described later is fluidly connected to the outer cylinder 128, as described above, the surface of the inflow port 149 is inward of the outer diameter of the outer cylinder 128. The height in the vertical direction can be reduced, and the vacuum cleaner 100 can be provided in which the vacuum cleaner body 1 is made compact.

Although the inflow port 149 is described taking the case of being provided on the left side in the illustration of FIG. 20 as an example, it may be provided on the right side. Even when the inflow port 149 is provided on the right side, the swirling direction of the inflowing air is merely opposite, and there is no influence on the dust separation performance and the like.

The upper portion of the outer cylinder 128 has a cylindrical shape. The outer cylinder 128 is provided with a dust scattering return prevention surface 151 substantially horizontally at the substantially vertical outer side with respect to the central axis of the outer cylinder 128 at a substantially central portion, as surrounded by a broken line 190 in FIG. In addition, the outer cylinder 128 has a shape that tapers in diameter downward from the dust and dirt return preventing surface 151. The dust and dirt return prevention surface 151 is enlarged by about 2.5 mm from the upper cylindrical inner peripheral surface of the outer cylinder 128.

As shown in FIG. 26, when the inner cylinder 129 is attached to the outer cylinder 128, the lower surface of the umbrella portion 139 of the inner cylinder 129 is in the cylinder above the outer cylinder 128, and the lower surface of the umbrella portion 139 of the inner cylinder 129 ( Dust accumulates below the ridge 146 (see FIG. 17), so that the dust and return prevention surface 151 returns from the dust and dust storage portion 135 (see FIG. 16) deposited on the lower portion of the tapered portion of the outer cylinder 128. Dust contained in the air is prevented from returning along the inner surface of the outer cylinder 128. Thereby, adhesion of dust to the mesh member 136 (see FIG. 15) of the side surface of the inner cylinder 128 or fineness from the mesh member 136 Since it is possible to suppress the penetration of dust and dirt, it is possible to provide the vacuum cleaner 100 having the dust case 2 in which the decrease in suction force is suppressed.

Further, by providing the dust and dirt return prevention surface 151 and tapering the lower side from the dust and dirt return prevention surface 151, the volume of the outer cylinder 128 can be expanded and more dust can be accumulated. In addition, in the state which made the central axis of dust case 2 the perpendicular direction, it inclines about 8 degrees.

Note that, as shown in FIG. 24, in the portion surrounded by the broken line 190 in FIG. 22, an annular rib 152 may be provided substantially vertically below the dust and dirt prevention surface 151. The annular rib 152 extends the upper cylindrical portion and protrudes to the inside of the tapered portion, so that it is possible to prevent dust from flying back along the inner wall of the outer cylinder 128.

Further, as shown in FIG. 25, the portion surrounded by the broken line 190 in FIG. 22 has a cylindrical shape on the upper side, and has a dust scattering return preventing surface inclined upward from the substantially central portion with respect to the vertical direction with respect to the central axis of the dust case 2 A shape 151a may be provided, and the lower side of the dust and dirt prevention surface 151A may be tapered. By providing such an inclined dust scattering return prevention surface 151A, adhesion of dust to the mesh member 136 on the side surface of the inner cylinder 129 and blowing of fine dust from the mesh member 136 can be suppressed. The vacuum cleaner 100 which has the dust case 2 which suppressed the fall of suction force can be provided.

As shown in FIG. 26, the bottom cover 133 is a dish having a depth, and is provided with a packing 157 on the outer periphery of the upper surface, so that when the bottom cover 133 is closed, airtightness with the bottom of the outer cylinder 128 can be maintained. It has become. In addition, the bottom cover 133 is dished to increase its strength. Further, on a part of the outer periphery of the bottom lid 133, a hooking portion 155 (see FIG. 21) for locking the bottom lid 133 to the outer cylinder 128 described above is provided. The outer cylinder 128 is provided with a hinge portion 158 (see FIG. 21) provided with a rotation shaft 158a (see FIG. 21) on the opposite side of the hook portion 155.

As described above, when attaching the dust case 2 to the cleaner body 1, the recessed portion 159 of the bottom surface of the bottom lid 133 is fitted to the dust case fixing projection 13a of the cleaner body 1, and the dust case fixing projection 13a Press the dust case 2 against the cleaner body 1 with the Then, the dust case 2 is integrated with the cleaner body 1 by being locked by the lock button 119 at the top of the upper lid 132 described above. Therefore, when the dust case 2 is attached to the cleaner body 1, the lid lock mechanism 150 is hidden on the cleaner body 1 side. If the lid lock mechanism 150 is provided on the opposite side (outside), there is a possibility that the lid lock mechanism 150 may be released during cleaning, but the lid lock mechanism 150 should be hidden on the cleaner body 1 side. Malfunction can be prevented. For example, when cleaning the bottom of a sofa or bed in a stick state, the cleaner main body 1 may be brought closer to the horizontal surface with respect to the floor surface. At this time, when the lid lock mechanism 150 is provided on the front side, the floor surface And the lid lock mechanism 150 may be released. The positions of the lid lock mechanism 150 and the hinge portion 158 are not limited to this, and they may be provided on the left and right with respect to the cleaner body 1. By providing them on the left and right, the above-mentioned malfunction can be prevented, and the protrusion of the hinge portion 158 can be eliminated, so that the height in the front-rear direction can be shortened, and compactness can be achieved.

Further, the bottom lid 133 has a dish-like central portion projecting, and the central portion is provided with a hollow portion 170 having a concave shape from the portion projecting. The recessed portion 170 is larger than the spherical radius of the spherical shape of the bottom surface 140 a of the cylinder 140 described above, and in the recessed portion 170, the bottom cover 133 is in an open state (vertical state with respect to the bottom surface of the outer cylinder 128) In the concave portion 170, the horizontal plane can not be formed. In addition, the recessed portion 170 is made as shallow as possible, so that dust does not remain in the recessed portion 170 when discharging dust.

Further, the recess 170 is formed separately, and is formed using a material such as POM (polyoxymethylene) so as to reduce the wear of the member due to the friction with the cylinder 140 at the opening and closing of the bottom lid 133. It can be done. In addition, you may shape | mold the hollow part 170 integrally.

The lid lock mechanism 150 includes a lid lock cover 153, a button 154, and a spring (not shown).

The lid lock cover 153 includes a rotating shaft and a spring seat (both not shown), and is configured by providing a notch in a part of the side surface and a part of the bottom surface.

The button 154 has a knob, a claw, an axial hole and a spring shaft (all not shown). The shaft hole 154 c of the button 154 is fitted to the rotation shaft 153 a of the lid lock cover 153. When one end of a spring (not shown) is inserted into the spring shaft 154 d of the button 154 and the other end is fixed to the spring seat 153 b of the lid lock cover 153, the knob 154 a of the button 154 from the notch on the side of the lid lock cover 153, The claw portion 154 b protrudes from the notch in the bottom surface. The outer cylinder 128 is provided with a projection for adjusting the position of the lid lock cover 153 and a screw boss (not shown), and the lid lock mechanism 150 is configured by fastening the lid lock cover 153 to the outer cylinder 128 with a screw. .

The spring (not shown) is contracted by pinching the knob 154a with the side surface of the lid lock cover 153 (facing the knob 154a) as a fulcrum, and the claw 154b is rotated within the movable range to loosen the pinching force. (Not shown) returns to the natural length, and the knob portion 154a returns to the state of protruding from the lid lock cover 153. When the lid lock mechanism 150 is operated in a state where the bottom lid 133 is closed, the hooks 154b of the button 154 are detached from the hooks 156 provided on the bottom lid 133, and the bottom lid 133 is opened. The claws 154b and the hooks 156 have slopes, and when the bottom lid 133 is closed, the slopes come in contact with each other. In the illustrated state, the claw portion 154b passes over the hook portion 156 and the bottom cover 133 is closed again.

In the structure of the dust case 2 provided with the outer cylinder 128 and the inner cylinder 129 as described above, the sliding mechanism provided in the inner cylinder 129 by attaching the inner cylinder 129 to the outer cylinder 128 is the lower end of the outer cylinder 128 This is done by opening and closing the bottom lid 133 provided on the As shown in FIG. 27, when the bottom cover 133 is opened, the umbrella portion 139 protrudes downward, and when the bottom cover 133 is closed, the spring 145 is contracted, and the umbrella portion 139 is accommodated in the lower cylinder 129b. Therefore, when the lid lock mechanism 150 of the bottom lid 133 is released at the time of waste disposal, the umbrella portion 139 pops downward and pushes out the dust.

In such a sliding mechanism, the state in which the spring 145 is close to the natural length is the state in which the umbrella portion 139 is most expelled. The sliding distance between the upper and lower sides of the umbrella portion 139 is less than the height of the space 138 of the lower cylinder 129 b as described above. In other words, the upper surface 139c of the umbrella portion 139 does not exceed the bottom surface 129e of the lower cylinder 129b. This is to eliminate the gap between the bottom surface 129e of the lower cylinder 129b and the top surface 139c of the umbrella portion 139 at the time of dumping, thereby suppressing the trapping of dust between the bottom surface 129e and the top surface 139c. In addition, the umbrella portion 139 is provided with a minimum gap that can easily slide in the space 138 in the lower cylinder 129b. In addition, since the umbrella portion 139 is in the dust storage portion 135, it is possible that dust may get caught in the gap and be difficult to slide if the gap (gap) between the outer periphery of the umbrella portion 139 and the lower cylinder 129b is too small. . In the dust case 2, a gap is provided in consideration of the biting of dust, and a plurality of ribs 139b (see FIG. 18) are provided on the outer periphery of the umbrella portion 139 to make the gap large. It is reduced. Further, the umbrella portion 139 is provided with a step portion 139d (see FIG. 18), and the step portion 139d and the bottom surface 129e (see FIG. 18) of the lower cylinder 129b are combined (the umbrella portion 139 is in the space 138 of the lower cylinder 129b). (In the state of being accommodated), the gap between the lower cylinder 129 b and the umbrella portion 139 disappears. Thereby, the entry of dust into the gap between the lower cylinder 129 b and the inside of the umbrella portion 139 at the time of dust suction is suppressed. Further, the bottom portion of the umbrella portion 139 is provided with a hook 146 (see FIG. 18), and the dust 146 from the dust container 135 (see FIG. 16) to the dust separating unit 134 (see FIG. 16) Control the return of In addition, since dust is deposited below the ridge 146, it is preferable to set the timing of dust discharge before the dust exceeds the ridge 146.

  Next, the operation at the time of dumping will be described with reference to FIGS. 26 and 27.

As shown in FIG. 26, the bottom lid 133 is released by pinching a button 154 (see FIG. 20) of the lid lock mechanism 150 provided on the side surface of the dust case 2. That is, the bottom lid 133 is provided with a hinge portion 158 (see FIG. 21) on the opposite side of the lid lock mechanism 150, and rotates about the rotation shaft 158a (see FIG. 21) of the hinge portion 158 as shown in FIG. The bottom cover 133 is in a substantially vertical state (the upper surface of the bottom cover 133 is vertical).

At the same time as the bottom cover 133 is opened, the biasing force of the spring 145 causes the umbrella portion 139 and the cylindrical body 140 to project downward from the opening at the lower end of the outer cylinder 128. Thus, the umbrella portion 139 is closer to the opening of the lower surface of the outer cylinder 128 when the bottom lid 133 is opened than when the bottom lid 133 is closed. By the sliding operation of the umbrella portion 139, the collected dust is pushed downward.

After discarding the waste, when the bottom cover 133 is closed, the bottom surface 140a of the cylindrical body 140 jumping downward contacts the recessed portion 170 provided at the center of the bottom cover 133, and the umbrella portion 139 and the cylindrical body 140 are pushed upward. Since the bottom surface 140a of the cylindrical body 140 and the concave portion 170 contact in a spherical shape, the contact area between the bottom surface 140a of the cylindrical body 140 and the concave portion 170 is made constant even if the angle of the bottom lid 133 is changed by closing the bottom lid 133. Since the curved surfaces can be kept in contact with each other and a force is always applied in the vertical direction, the umbrella portion 139 smoothly fits in the lower cylinder 129b. Incidentally, when the bottom lid 133 is in contact with a flat surface without providing the recessed portion 170, the direction in which the force is applied is perpendicular to the flat surface, so that the umbrella portion 139 is difficult to return vertically and the bottom lid 133 is difficult to close. Then, when the bottom cover 133 is closed to a substantially horizontal state, the hooking portion 156 engages with the hooking portion 155 (see FIG. 21) and is locked in a state in which air tightness is held by the packing 157 provided on the bottom cover 133.

Next, in the vacuum cleaner 100, the shape and structure of the introduction pipe 14 for guiding the air containing dust to the dust case 2, which is the upstream side of the dust case 2, and the flow of the air will be described with reference to FIGS. Do. 28 is a perspective view showing the positional relationship between the dust case and the introduction pipe, FIG. 29 is a view showing the flow of air in the pipe case, FIG. 30 is a cross-sectional view taken along line II of FIG. FIG. 32 is a front view showing the positional relationship of the air conditioner, FIG. 32 is a view showing the flow of air inside the dust case, and FIG. 33 is a cross-sectional view showing the airtight structure of the dust case and the vacuum cleaner body. In addition, the code | symbol 171 shown in the figure shows a dust, and the arrow A shows the flow of air.

As shown in FIG. 28, the stick type / handy type electric vacuum cleaner 100 has a flow path from the suction port 15 at the tip of the vacuum cleaner main body 1 to the inflow port 149 of the dust case 2 (outer cylinder 128). A certain introduction pipe 14 is provided. In FIG. 28, each component is omitted from the state where the dust case 2 is attached to the vacuum cleaner main body 1 shown in FIG. 5, and only the introduction pipe 14 and the dust case 2 are shown.

The introduction pipe 14 is open at the front and rear, and has an introduction pipe outlet 161 connected to the above-described suction port 15 at the front and the inflow port 149 of the dust case 2 (outer cylinder 128) at the rear. Further, the introduction pipe 14 has straight pipes 160 a and 160 b, the straight pipe 160 a is provided on the side surface of the dust case 2, and the straight pipe 160 b is located in front of the bottom lid 133.

As shown in FIG. 29, the central axis (d) of the dust case 2 is colinear (parallel) with the central axis (not shown) of the cleaner body 1 as viewed from above. As described above, the dust case 2 is located below the straight portion 14b.

The central axis (e) of the straight portion (linear pipe 160 a) of the introduction pipe 14 is parallel to the central axis (d) of the dust case 2. The introduction pipe 14 has a substantially S-like shape, and a suction body 3 (see FIG. 1) and the like are connected to the suction port 15 at the tip (forward). Further, the introduction pipe 14 is a straight pipe 160a formed in a length from the inlet 149 (see FIG. 20) of the outer cylinder 128 to the bottom of the outer cylinder 128, and a bottom cover 133 along the outer surface of the bottom cover 133. And a straight pipe 160b extending in the forward direction.

The central axis (to) of the straight piping 160b is located on the same line as the central axis (2) of the dust case 2 as viewed from above. In other words, the introduction pipe 14 has a pipe shape in which the central axis of the linear pipe 160a and the central axis (f) of the linear pipe 160b having the suction port 15 are parallel and connect both the linear pipes 160a and 160b obliquely downward. The inclination angle of the oblique piping 160c connecting the two straight pipings 160a and 160b obliquely downward varies depending on the position of the suction port 15, but the position (range) of the suction port 15 is in the bottom of the dust case 2 (bottom lid 133 outside diameter It is shaped to be located in).

Further, the introduction pipe 14 is accommodated in the pipe case portion 13 of the cleaner body 1, and the pipe case portion 13 has a shape in which the left side is expanded as viewed from above. A packing 162 is provided at the inlet pipe outlet 161 connected to the inflow port 149 of the dust case 2, and when the dust case 2 is attached to the cleaner body 1, the packing 162 and the inflow port 149 are pressure-contacted and maintain airtightness It is supposed to

The packing 162 is formed by using a rubber member, a non-air-permeable sponge-like member, or the like so as to be integrated with the introduction pipe outlet 161 (secondary molding), the introduction pipe outlet 161 and the pipe case portion 13 The airtightness of the introductory tube outlet 161 and the packing 162 is maintained by being fixed so as to be sandwiched between the two. Also, the packing 162 may be provided at the inlet 149 of the dust case 2 instead of the introduction pipe outlet 161, but when the dust case 2 is made washable, if the packing 162 is a separate part, the packing 162 is attached It is preferable to provide the inlet pipe outlet 161 as described above because there is a risk of forgetting or the like.

The air drawn from the suction port 15 flows along the shape of the introduction pipe 14 as shown by arrow A. At this time, the dust 171 having a density and weight greater than air is pushed to the right inner wall surface side (the left inner wall surface side in the drawing) of the straight pipe 160a by the inertia force 180 by the oblique piping 160c, It is conveyed toward the dust case 2 along the left inner wall side). The right inner wall surface side of the straight piping 160a is connected to the right inner wall surface of the inflow port 149 provided in the outer cylinder 128, and thus, it is connected in a tangential direction to the inner wall surface of the outer cylinder 128. Therefore, the dust 171 conveyed along the right inner wall surface of the straight piping 160a swirls the inner wall surface of the outer cylinder 128 most distant from the outer periphery of the inner cylinder 129, so that the centrifugal separation performance is improved.

As shown in FIG. 31, from the view from the suction port 15 side (forward), the straight pipe 160a is positioned above the straight pipe 160b having the suction port 15, so the dust 171 is similar to the flow described above. Is transported to the upper side of the inner wall surface of the straight piping 160 a by the inertial force 180, the dust 171 is transported to the upper side of the outer cylinder 128. Thereby, the height direction of the inflow port 149 can be used effectively, and the length of the dust separating portion 134 (see FIG. 16) can be used effectively.

The higher the dust separating portion 134 is (the longer it is in the front-rear direction), the higher the dust separation performance is. Therefore, providing the vacuum cleaner 100 having the dust case 2 in which the centrifugal separation performance is secured while suppressing the height of the dust separation unit 134 (while compacting) by using the bent introduction pipe 14 as described above. Can.

Also, providing the bent portion in the introduction pipe 14 leads to the downsizing of the cleaner body 1. For example, when cleaning under a sofa or bed in a stick type form, the vacuum cleaner main body 1 is brought close to the floor surface, and the suction body 3 is inserted in a narrow gap. At this time, in the shape where the introduction pipe extends straight, the cleaner body 1 can not be brought close to the floor surface unless the introduction pipe is made long. Therefore, by bending the introduction pipe 14 as described above, the longitudinal length of the cleaner body 1 can be shortened, and a compact vacuum cleaner 100 can be provided. By the way, as a method to shorten the longitudinal length of the vacuum cleaner main body 1, it is possible to make the introduction pipe close to the floor without making the introduction pipe too long by reducing the diameter of the dust case 2, but the diameter of the dust case 2 is small As a result, the separation performance, the amount of collected dust, and even the pressure loss may be deteriorated. Therefore, by bending the introduction pipe 14 as described above, it is possible to improve the separation performance, to make the dust case 2 with a large amount of dust collection and a low pressure loss, and to provide a compact vacuum cleaner 100. can do.

Also, even if the introduction pipe 14 extends straight, unlike the vacuum cleaner 100, the dust case 2 is provided on the upper portion of the vacuum cleaner body 1 (above the pipe case portion 13), so that the vacuum cleaner main body 1 is described. Can be moved close to the floor surface, and the suction body 3 can be put into a narrow gap. However, since the inflow port 149 of the dust case 2 is directed upward, cleaning with the vacuum cleaner body 1 close to the floor surface or the posture of the vacuum cleaner body 1 in the handy type is the upper portion of the dust case 2 When the operation is stopped, dust may be left in the introduction pipe 14 when the operation is stopped. In order to solve this, there is also a product in which a check valve is provided at the inflow port 149, but there is also a possibility that dust may get caught in the check valve or an increase in pressure loss due to the check valve. Therefore, as described above, by providing the dust case 2 on the lower side of the cleaner body 1 and bending the introduction pipe 14, dust does not easily remain on the inflow port 149 side even in various cleaning postures. It is possible to provide a compact vacuum cleaner 100 while suppressing an increase in pressure loss due to the provision of a stop valve and the like and dust being caught in the check valve.

Further, as described above, when the vacuum cleaner main body 1 is viewed from above, the left side of the pipe case portion 4 is expanded. In other words, the central axis of the dust case 2 and the central axis of the vacuum cleaner main body 1 are parallel (colinear), but the axis of the straight pipe 160a of the introduction pipe 14 is not on the same line of both axes. As described above, by arranging the introduction pipe 14 in an asymmetry position shifted from the cleaner body 1 (dust case 2) in the left-right direction, the cleaner body 1 can be made difficult to hit the user's body in a stick type configuration. As described above, when the introduction pipe 14 is disposed on the right side (the left side in the drawing) when viewed from the front, the right-handed user can easily use it because the protrusion on the left side of the cleaner body 1 is small. When arranged, left-handed users are easy to use. Switching between the right side and the left side need only be performed by replacing the outer cylinder 128, the introduction pipe 14, and the pipe case 13. Therefore, the electric vacuum cleaner 100 can be provided which realizes a universal design with less parts replacement.

As shown in FIG. 32, when the user starts operation by the operation button 31a or the operation button 31b provided on the rotary handle 30 (see FIGS. 1 and 2), the electric blower 40 is supplied with power from the storage battery 60. And the electric blower 40 drives and sucks in air. The sucked air flows from the suction port 15 of the introduction pipe 14 through the introduction pipe outlet 161 and flows into the dust case 2 from the inflow port 149 (flow 200). At this time, dust is transported from the tangent line S2 direction (see FIG. 23) of the outer cylinder 128 into the dust case 2 while being pushed to the right inner wall surface of the introduction tube 14 (see FIG. 29) Ru. The air containing dust that has flowed in becomes a swirling flow, centrifugal force acts on the dust, and dust and air are separated (flow 201). That is, dust and air are separated by the dust separation unit 134 which is the upper part in the dust storage unit 135. Most of the separated air flows into the inside of the inner cylinder 129 from the intake part 129c provided in the upper cylinder 129a (flow 202). Then, the air passes through the dust collection filter 130, passes through the upper opening of the upper lid 132, and reaches the electric blower 40 (flow 203). At this time, fine dust that has passed through the mesh member 136 of the air suction portion 129 c is collected by the dust collection filter 130.

On the other hand, dust separated by centrifugal force is transported between the outer cylinder 128 and the lower cylinder 129b into the dust storage portion 135 by gravity and a part of the air flow. At this time, since the centrifugal force is acting on the dust, the dust swirls in the dust storage portion 135 (flow 204). Then, when the use of the vacuum cleaner 100 is continued, dust is gradually accumulated, and the dust storage portion 135 becomes full (in the shape of a donut), which is the timing of dust disposal.

The air that has flowed into the dust container 135 may flow from near the outer periphery of the lower cylinder 129b toward the upper cylinder 129a along the shape of the space 140a of the cylinder 140 and the umbrella portion 139 (flow 205). In order to suppress the return of dust to the upper cylinder 129a due to the flow of air, the depth of the umbrella portion 139 is required. In the dust case 2, the lower cylinder 129 b is provided with a sliding mechanism for pushing out the dust, so the umbrella portion 139 is provided with a sufficient depth. Further, the dust scattering return prevention surface 151 (see FIG. 22) provided at the upper end of the tapered portion of the outer cylinder 128 further suppresses the return of dust to the upper cylinder 129a side.

When the dust is full of dust in the dust storage portion 135, the dust is discarded, but the dust discharge mechanism is as described above, and the sliding mechanism of the umbrella portion 139 and the taper of the outer cylinder 128 even if the amount of dust sucked is small. Depending on the shape, dust can be discharged.

Further, providing a mechanism for discharging dust from the lower side of the dust case 2 in this manner is effective for a vacuum cleaner (rechargeable vacuum cleaner) provided with the main body terminal 12 d at the rear of the dust case 2. It can suppress that dust adheres to the back (upper lid 132 side) of.

  Next, the configuration of the dust case attaching / detaching mechanism (lock button) will be described.

The pipe case 13 is provided with a dust case fixing projection 13 a for fixing the dust case 2, and the motor case 11 is provided with a dust case fixing hole 118 for fixing the dust case 2. The dust case 2 is provided with a lock button 119 biased by a lock button spring 120. The lock button 119 is hooked in the dust case fixing hole 118 by inserting the dust case fixing protrusion 13a into the recessed portion 159 of the bottom of the dust case 2 and rotating the dust case fixing protrusion 13a to the pipe case 13 side. The dust case 2 is integrated with the cleaner body 1.

When the dust case 2 is removed, the lock button 119 is disengaged from the dust case fixing hole 118 by sliding the lock button 119 to the front side, and the recessed portion is rotated by rotating the dust case 2 in the opposite direction to the attachment. 159 can be removed from the dust case fixing projection 13a.

As shown in FIG. 33, the bottom (back side) of the bottom cover 133 is provided with a recess 159 on the side of the pipe case 13 of the cleaner body 1, and the dust case fixing projection 13 a and the bottom of the cleaner body 1 are provided. The recess portion 159 (see FIG. 3) of the bottom surface of the lid 133 is shaped to be fitted. The dust case fixing projection 13a and the recess portion 159 are formed to have a width in the left-right direction (the direction perpendicular to the sheet of FIG. 33). Thus, when the dust case 2 is mounted on the cleaner body 1, the dust case 2 is prevented from operating in the rotational direction.

A suction portion 113 communicating the electric blower 40 with the dust case 2 is provided on the air-tight surface 112 which partitions the electric blower 40 and the dust case 2 arranged in the main body portion 10. A protective filter 115 is provided in the air flow passage of the suction portion 113 to prevent dust from invading the inside of the electric blower 40 when the dust case 2 is removed or the like. Can.

Further, it is desirable that the protective filter 115 be configured so as to be removable from the main body 10 so as to be able to clean when soiled, and is made of a material that can be washed with water. The protective filter 115 is fixed to the main body 10 by a protective filter cover 114. It is desirable that the protective filter cover 114 be in the form of a grid constituted by holes whose size does not allow the finger of the user to touch the electric blower 40 so that the finger does not enter.

The main body portion 10 is provided on the upstream side of the electric blower 40 with a vibration-proof air-tight rubber 116 formed of an elastic seal member such as rubber, and the vibration-proof air-tight rubber 116 adheres closely to the flat surface of the outer periphery of the protective filter cover 114 In some cases, airtightness can be ensured. In addition, since the vibration-proof air-tight rubber 116 is fixed together with the electric blower 40 in the fixed case 11a, it also plays a role of absorbing rotational vibration generated by the drive of the electric blower 40.

Incidentally, when the dust case 2 is mounted on the main body 10, if it is pushed from below (horizontally) while being moved in parallel, the packing 120b may come off and the air tightness between the dust case 2 and the suction portion 113 may not be ensured. is there. Therefore, the dust case 2 is provided with the recess 159, and the pipe case 13 (the main body 10) is provided with the dust case fixing projection 13a to be fitted into the recess 159. Let Further, the airtight surface 112 is located rearward (upper side in the drawing) than the tangent S3 of the rotation of the upper end surface 2s of the dust case 2. Then, when the dust case 2 is pushed to the maximum, the upper end surface 2s of the dust case 2 and the airtight surface 112 become parallel, and the packing 130b contacts the entire circumference of the opening edge of the suction portion 113. The airtight surface 112 of the main body 10 is inclined at a predetermined angle α (for example, 5 degrees) with respect to the vertical direction (horizontal direction in the drawing).

In addition, the packing 130b has a shape that expands in diameter toward the rear (upper side in the drawing) in a cross-sectional view shown in FIG. With such a shape, it is difficult for the packing 130b to be turned off when the dust case 2 is attached and detached. Further, even if the packing 130b is not strongly pressed against the suction portion 113, the suction force when the electric blower 40 is driven causes a negative pressure, whereby the packing 130b is sucked to the suction portion 113, and the dust case 2 and the suction Airtightness with the part 113 is reliably ensured.

As described above, in the electric vacuum cleaner 100 described above, the main body portion 10 provided with the electric blower 40, the expansion and contraction pipe 20 attached to the main body portion 10 in an expandable manner and the expansion and contraction pipe at the tip portion of the expansion and contraction pipe 20 The vacuum cleaner main body 1 has a rotary handle 30 attached rotatably in the expansion and contraction direction (longitudinal direction) 20, and a dust case 2 detachably attached to the main body portion 10. Thereby, the position of the rotary handle 30 approaches the electric blower 40 of the main body 10 by retracting the telescopic pipe 20 and rotating the rotary handle 30 to the telescopic pipe 20 side, that is, the center of gravity Ga of the electric vacuum cleaner 100 Because the user can approach it, the burden on the user's hands will not be large.

Further, in the electric vacuum cleaner 100, when the expandable pipe 20 is housed in the main body portion 10 and the rotary handle 30 is folded, the length of the electric blower 40 in the longitudinal direction (front and rear direction) and the length direction of the main body substrate 50 (front and rear direction The length (longitudinal direction (longitudinal direction (longitudinal direction) length) of the storage battery 60 is configured to be substantially equal to the longitudinal direction length of the opening 32 of the rotary handle 30. As a result, the center of gravity Ga (see FIG. 2) of the vacuum cleaner 100 is located below (near) the rotary handle 30, so it is easy to hold the vacuum cleaner 100 even when it is in a handy type. It becomes easier to clean and improves usability. In addition, when the vacuum cleaner 100 is used in a stick type, the center of gravity of the vacuum cleaner 100 is not the hand but the floor side, so cleaning becomes possible without putting a heavy burden on the hand, and usability is improved. improves. As described above, it is possible to realize the electric vacuum cleaner 100 which is easy to use whether it is a handy type or a stick type. Moreover, when storing the vacuum cleaner 100, it can be stored in the low place by making it handy type.

In addition, since the lid lock mechanism 150 provided on the dust case 2 is disposed at a position where the lid lock mechanism 150 is hidden when the dust case 2 is attached to the cleaner body 1, the lid lock mechanism 150 is operated during operation. Can be released to prevent the waste collected in the dust case 2 from being accidentally discharged. In addition, although the maintenance brush 172 is detachably provided on the dust case 2, the maintenance brush 172 is also hidden when the dust case 2 is attached to the cleaner body 1, so during operation It does not come off and there is no need to store the maintenance brush 172 in a separate place from the vacuum cleaner 100.

Further, since the operation direction of the lock button 119 when removing the dust case 2 from the cleaner body 1 is forward (downward in FIG. 33), the dust case 2 can be prevented from being detached from the cleaner body 1 during operation. .

Next, the configuration of the charging stand 70 will be described with reference to FIG. 34 to FIG. 34 is an external perspective view of the charging stand, FIG. 35 is an exploded perspective view showing the charging stand, FIG. 36 is a perspective view showing the charging terminals of the charging stand, FIG. 37 is a perspective view showing the main body terminals of the vacuum cleaner, FIG. 39 is a cross-sectional view showing the connection state of the charging terminal and the main body terminal, FIG. 39 is a perspective view when the vacuum cleaner is attached to the charging stand in the handy state, and FIG. 40 is when the vacuum cleaner is attached to the charging stand in the stick state FIG.

As shown in FIG. 34, the charging stand 70 is configured to include a base portion 71, a stand portion 72, and a charging stand terminal portion 73.

The base portion 71 has a substantially rectangular mounting surface 71a on which the suction body 3 (see FIG. 1) is mounted. Further, the base portion 71 has an extending portion 71b extending rearward at the center in the width direction (left and right direction). On the left and right sides of the extension 71b, applied suction body fixing projections 71c and 71c are provided for detachably attaching the applied suction body 5 (see FIG. 53) and the like. When the applied suction body 5 is attached, it can be stored by being inserted into the applied suction body fixing projection 71 c.

The stand portion 72 extends upward in the vertical direction (vertical direction) from the rear end portion of the extension portion 71 b. Further, the stand portion 72 is formed such that the upper portion is thicker in the front-rear direction than the lower portion from the center in the vertical direction.

The charging terminal 73c is a terminal for charging the storage battery 60 by being electrically connected to the cleaner body 1, and is formed so as to project upward from the upper surface 72a.

As shown in FIG. 35, the stand portion 72 is detachable from the base portion 71. In addition, although the base part 71 and the stand part 72 may not be detachable, in order to improve storability and packing property, it is desirable that they are detachable.

The base portion 71 is provided with a power cord 76 on the rear surface, and has a charge board 74 inside. In addition, a weight 75 is provided inside the base portion 71, and when the vacuum cleaner 100 is attached to the charging stand 70, the charging stand 70 is less likely to fall down.

A charging base terminal portion 73 is provided on the upper surface 72a of the stand portion 72 so that the storage battery 60 can be charged by conducting with the main body terminal portion 12a provided in the storage battery case portion 12 of the vacuum cleaner main body 1 described later. It has become.

The stand portion 72 is provided with a connection pin 72b, the base portion 71 is provided with a connection terminal 71d for receiving the connection pin 72b, and the base portion 71 and the stand portion 72 are electrically connected when connected.

As shown in FIG. 36, the charging stand terminal portion 73 has a substantially rectangular parallelepiped terminal block 73a protruding upward from the upper surface 72a of the stand portion 72. The terminal block 73a is formed to be elongated in the left-right direction. In the terminal block 73a, substantially rectangular parallelepiped concave portions 73b and 73b are formed at the left and right ends so that the front surface and the upper surface are open. Each recess 73 b is in communication with the space in the stand portion 72, and the charging terminal 73 c is disposed in each recess 73 b.

In the terminal block 73a, substantially rectangular parallelepiped shaped recessed portions 73d and 73d are formed between the terminal 73c and the terminal 73c so that the front surface and the upper surface are opened.

The charging terminal 73c is configured by bending an elongated metal plate, and is disposed so as to be bent and deformed in the front-rear direction in the recess 73b. The charging terminal 73c is electrically connected to the connection pin 72b via a lead (not shown).

On the other hand, the storage battery case portion 12 of the cleaner body 1 is provided with a main body terminal portion 12 a. FIG. 37 shows the main body terminal 12a as viewed from the dust case 2 side. The main body terminal portion 12a includes a terminal case 12b, and the terminal case 12b protrudes rearward from the rear surface of the storage battery case portion 12 and is formed to be long in the left-right direction.

In the lower surface of the terminal case 12b, a fitting recess 12c in which the terminal block 73a of the charging stand 70 is fitted is formed. In the fitting recess 12c, a main body terminal 12d connected to the charging terminal 73c of the charging stand 70 is disposed. The main body terminal 12 d is electrically connected to the storage battery 60 in the storage battery case 12 via a lead wire. Further, in the fitting recess 12c, a fitting protrusion 12e to be fitted to the recess 73e of the charging stand 70 is formed.

In the case of charging the storage battery 60 of the cleaner body 1, the charging stand terminal portion 73 provided on the upper surface 72 a of the stand portion 72 by lowering the cleaner body 1 downward from the position above the charging stand 70. Is fitted with the fitting recess 12 c of the cleaner body 1. The main body terminal 12d protrudes from the side surface of the front side (left side in the drawing) in the fitting recess 12c in a cross sectional view shown in FIG. 38, and extends in the upper and lower direction at the upper part. And a tapered edge 12f that descends toward the right side of the drawing).

Therefore, when the main body terminal portion 12 is fitted to the charging stand terminal portion 73, the main body terminal 12d contacts the charging terminal 73c, and the edge 12f of the main body terminal 12d is further lowered to bend the charging terminal 73c backward. Deform. Since the charging terminal 73c has a spring property to urge forward, the main body terminal 12d and the charging terminal 73c are in contact with each other while the cleaner body 1 is mounted on the charging stand 70. The battery is maintained, and charging of the storage battery 60 is continued.

In addition, since the charging pad terminal portion 73 is engaged with the main body terminal portion 12 in a concavo-convex manner, for example, even if the user contacts the cleaner main body 1 during charging, the conduction state between the main body terminal 12d and the charging terminal 73c The (contact state) will not be released.

In the charging stand 70 configured in this way, since the charging stand terminal portion 73 is formed on the upper surface 72 a of the stand portion 72, when the charging stand terminal portion 73 and the main body terminal portion 12 are aligned, Since the main body terminal portion 12 can be easily inserted into the charging stand terminal portion 73 because it is in a close position, the vacuum cleaner main body 1 can be easily set on the charging stand 70.

Further, in the charging stand 70, the charging stand terminal portion 73 is formed on the upper surface 72 a of the stand portion 72. That is, since the charging stand terminal portion 73 is formed at a high position from the floor surface, it is difficult for the dust to be deposited on the charging stand terminal portion 73, and it is also possible to reduce the dust rising from the floor surface and adhering.

Moreover, in the vacuum cleaner 100 set to the charging stand 70, since the charging stand terminal part 73 is located in the position (position of the electric blower 40 and the storage battery 60) near the gravity center Ga (refer FIG. 2) of the vacuum cleaner 100, Since the charging stand terminal portion 73 receives the vicinity of the center of gravity Ga, the cleaner body 1 can be stably held on the charging stand 70 during charging.

Moreover, in the charging stand 70, when charging in the state which connected the suction body 3 to the vacuum cleaner 100, since it can support by the mounting surface 71a of the base part 71, the charging pad terminal part 73 and suction hole It can be supported at two points of the body 3 and the charging stand 70 can hold the vacuum cleaner 100 stably.

Further, by applying the electric vacuum cleaner 100 to the charging stand 70, charging can be performed with the dust case 2 removed, so that charging can be performed even while the dust case 2 is being cleaned and dried.

As shown in FIG. 39, the vacuum cleaner 100 can be charged in the handy state, and as shown in FIG. 40, the vacuum cleaner 100 can be charged even in the stick state. As described above, the vacuum cleaner 100 can be set on the charging stand 70 in either the handy state or the stick state. At this time, by mounting the suction body 3 and setting the vacuum cleaner 100, the lower surface of the suction body 3 is supported by the mounting surface 71a of the base portion 71, so the vacuum cleaner 100 is supported more stably. can do.

Further, since the charging stand terminal portion 73 is formed at a high position from the floor surface of the upper surface 72a of the stand portion 72, as shown in FIG. 39, the electric vacuum cleaner 100 is mounted with the applied suction body 5 attached. When attaching the charging stand 70, the vacuum cleaner 100 is prevented from coming into contact with the applied suction body 5, that is, the vacuum cleaner 100 first comes into contact with the stand portion 72, and the applied suction body 5 becomes an applied suction body. It is possible to suppress dropping off from the fixing projection 71c.

  Moreover, the charging stand 70 can be used as a stand at the time of accommodating the cleaner body 1, even when not charging the storage battery 60 without connecting the power cord 76.

In the cleaner body 1, a suction body 3 and a charging stand 70 are provided detachably. Moreover, although the vacuum cleaner 100 is a rechargeable vacuum cleaner which charges the storage battery 60 by the charging stand 70 and uses it as a power supply, the vacuum cleaner main body 1 is equipped with a power cord, and it uses as an AC type vacuum cleaner. May be

Next, the self-supporting structure of the vacuum cleaner 100 will be described with reference to FIGS. 41 and 42. FIG. 41 is a cross-sectional view showing a suction body, and FIG. 42 is a side view when the vacuum cleaner is allowed to stand in a handy state.

As shown in FIG. 41, the suction body 3 includes a suction case 3a and a suction joint 3b.

In the suction case 3a, a suction chamber Q having an opening is formed on the lower surface (surface facing the cleaning surface). Further, in the suction chamber Q, a first rotation cleaning body 3c and a second rotation cleaning body 3d are provided.

The first rotary cleaning body 3c is rotated by the driving force of a motor (not shown), and is rotatably supported by the suction case 3a. The second rotary cleaning body 3d has a brush having a diameter smaller than the diameter of the first rotary cleaning body 3c, and is disposed behind the first rotary cleaning body 3c. Further, on the rear of the second rotary cleaning body 3d, rollers 3e and 3f for supporting the suction case 3a in parallel with the floor surface are provided in the suction case 3a.

The suction joint 3b is connected to a first connection pipe 3g rotatably connected to the suction case 3a in the front-rear direction, and a second connection connected rotatably to the first connection pipe 3g in the left-right direction And a tube 3 h.

The first connection pipe 3g is configured to be rotatable from a substantially parallel state to a substantially vertical state (in the vertical direction) with respect to the floor surface (cleaning surface). That is, by rotating the first connection pipe 3g with respect to the suction case 3a with the shaft 3i as a fulcrum, the second connection pipe 3h is rotated between a substantially parallel state and a substantially perpendicular state to the floor surface. be able to.

The second connection pipe 3h is configured to be rotatable in the left-right direction (the direction perpendicular to the sheet of FIG. 41) with respect to the first connection pipe 3g. Thus, for example, from the state in which the main body portion 10 is substantially perpendicular to the floor surface, the main body portion 10 can be turned to be in a state substantially parallel to the floor surface.

Moreover, the 2nd connection pipe | tube 3h is provided with the electric power feeding terminal 3j to which electric power feeding is performed from the storage battery 60. As shown in FIG. Further, a connection pipe 3k connected to the suction port 15 of the cleaner body 1 is formed in the second connection pipe 3h.

Further, the second connection pipe 3h is provided at its tip end with a projection 3m that protrudes in the axial direction of the connection pipe 3k. Further, on the upper surface of the suction case 3a, an abutting surface 3n is formed, with which the tip of the projection 3m abuts.

As shown by the phantom line in FIG. 41, when the suction joint 3b rises forward, the tip of the projection 3m abuts against the contact surface 3n, whereby the forward rotational movement of the suction joint 3b is restricted. Be done.

As shown in FIG. 42, in the electric vacuum cleaner 100, when rotation of the inlet joint 3b is restricted, the vacuum cleaner is placed on a vertical line (t) passing through the shaft 3i of the inlet joint 3b (first connection pipe 3g). The center of gravity Ga of the main body 1 is located. This allows the vacuum cleaner 100 to stand on its own.

  FIG. 54 (a) is a partial cross-sectional view of the mouthpiece 3 in a self-standing state. FIG. 54 (b) is an enlarged view of FIG. 54 (a).

  FIG. 55 (a) is a partial cross-sectional view of the mouthpiece 3 in a non-self-supporting state. FIG. 55 (b) is an enlarged view of FIG. 55 (a).

  As shown in FIGS. 54 and 55, the suction joint 3b is biased by the spring 1202 to the front side (the self-supporting direction). When the spring 1202 is a plate spring and the contact portion is a screw, assemblability is good and the strength is easily secured because it is a metal part. A torsion coil spring or a compression spring may be used.

At the time of self-sustaining, the thin plate of the inlet joint 3b prevents overturning in the lateral direction.

In addition, since it changes also in the width | variety of the front-back direction of the suction case 3a of the suction body 3, it is not limited by the position of the axis | shaft 3i and gravity center Ga whether it can stand or not the vacuum cleaner 100 can stand.

  FIG. 56 is a view showing the lower surface of the suction body. FIG. 57 is a cross-sectional view of a suction body. FIG. 58 (a) is a lower perspective view of the suction body. FIG. 58 (b) is a cross-sectional view of FIG. 58 (a).

  A brush cover A1010 is attached to the right of the lower surface of the suction body 3, and a brush cover B1020 is attached to the left. Bottom brushing A1011 is attached to the brush cover A1010, and bottom brushing B1021 is attached to the brush cover B1020. The bottom surface brush A1011 and the bottom surface brush B1021 are substantially trapezoidal members having a portion which becomes wider from the front side to the middle portion and a portion which becomes the same width from the middle portion to the rear side. The bottom surface brush A1011 and the bottom surface brush B1021 are provided at the rear of the roller 1001, and the bottom surface brush A1011 and the bottom surface brush B1021 are provided such that a narrow portion comes after the roller 1001. The bottom brush marks A and B are spread from the back of the roller toward the direction of the rotary brush (inward direction of the suction body), so the dust sucked from the front side of the suction body 3 It is possible to lead in the direction of the rotating brush along the part where As shown in FIG. 57, the front end R portion and the rear end R portion which are front and rear end portions of bottom surface flakes A and B are attached to the R shaped portions of the brush covers A and B so as to be lifted upward with respect to the bottom surface. . As a result, peeling of the bottom brush marks A and B when the suction body 3 is moved in the front-rear direction is prevented.

In other words, the concave portion of the roller 1001 is provided with a front end R portion and a rear end R portion to prevent peeling. This is because the rollers hit the floor and the front end R does not hit the floor.
· By providing the lower case convex portion 1301 in the lower case along the wiping roller 1110, static pressure is improved, and when the wiping roller rotates at the time of backward movement, by contacting (sliding) with the lower case convex portion 1301 It becomes possible to suppress the adhesion of dust.

Next, the futon suction port will be described with reference to FIGS. 43 to 48. Fig. 43 is a side view showing a futon suction port, Fig. 44 is a bottom view showing the futon suction port, Fig. 45 is a cross sectional view showing the futon suction port when the joint is laid, and Fig. 46 is a cross section showing the futon suction port when the joint is erected FIG. 47 is a side view showing a handy state vacuum cleaner with a futon suction port attached, and FIG. 48 is a side view showing a stick state electric vacuum cleaner with a futon suction port attached.

As shown in FIG. 43, the fan suction port 6 is configured to include a suction port main body 6a, a rotating body 6b and a joint 6c.

The suction port main body 6a has a main body case 6d in which the rotating body 6b is accommodated, and a connecting portion 6e in which a joint 6c is rotatably connected to an upper surface of the main body case 6d. Further, the main body case 6d is provided with an intermediate portion 6f linearly extending in the front-rear direction, a front curved portion 6g located forward of the intermediate portion 6f and curved upward, and a rear of the intermediate portion 6f And a rear curved portion 6h curved upward. Further, the main body case 6d is formed symmetrically in the front-rear direction with the central portion ST1 in the front-rear direction as a boundary.

With respect to the lower surface 6i of the main body case 6d, a part (region smaller than a semicircle) of the rotary body 6b protrudes downward with respect to the lower surface 6i of the main body case 6d. Further, a plurality of rotating bodies 6b are formed in the front-rear direction. Although the case where the three rotating bodies 6b are provided is described as an example, the present invention is not limited to three, and may be four or more, or two or less. In addition, the three rotating bodies 6b are disposed rearward of the central portion ST1.

As shown in FIG. 44, the main body case 6d has a horizontally long substantially rectangular shape in a plan view, and a horizontally long substantially rectangular opening 6j smaller than the main body case 6d is formed in the lower surface 6i of the main body case 6d. There is.

The rotating body 6b is disposed so as to extend from one end in the left-right direction of the opening 6j to the other end. Further, on the rotating body 6b, plate-like blade portions 6k are formed so as to project in a plurality of directions, and the direction of the blades is changed in the axial direction for each predetermined length.

In addition, in Futon suction mouth 6, it is constituted so that the whole can be washed. For this reason, holes 6v for draining water are formed in a plurality of places around the opening 6j on the lower surface of the main body case 6d.

As shown in FIG. 45, the lower surface 6m of the front curved portion 6g of the main body case 6d (the front portion of the lower surface of the suction main body 6a) is formed to warp upward relative to the opening 6j (the lower surface of the middle portion 6f) There is. Further, the tip (front end) P10 of the lower surface 6m is located above the upper end of the rotary body 6b.

The lower surface 6n (the rear part of the lower surface of the suction port main body 6a) of the rear curved portion 6h of the main body case 6d is formed to be warped upward than the opening 6j (the lower surface of the intermediate part 6f). Further, the front end (rear end) P20 of the lower surface 6n is located above the upper end of the rotary body 6b.

The connecting portion 6e of the mouthpiece main body 6a is formed with a bearing portion 6q which rotatably supports the pivot shaft 6p of the joint 6c. When the joint 6c is turned upward, the rotation shaft 6p is formed with an abutting portion 6u that abuts against the opening edge 6t of the connecting portion 6e. Further, an abutting portion 6s that abuts on the opening edge 6r of the connecting portion 6e when the joint 6c is rotated downward is formed on the rotational shaft 6p.

The water removal holes 6v are formed at the lower end of the front curved portion 6g and the lower end of the rear curved portion 6h so that the water leakage is good.

Thus, when the joint 6c is laid on the floor surface (surface to be cleaned) side in the futon suction port 6, as shown in FIG. 45, the lower surface (the surface on which the opening 6j is formed) of the suction body 6a. It is configured to be γ1 (for example, 15 degrees). When the angle is smaller than γ1 (for example, less than 15 degrees), the front portion of the suction main body 6a is easily lifted when the fan suction port 6 is retracted.

As shown in FIG. 46, in the case of the futon suction port 6, when the joint 6c is erected farthest from the floor surface (surface to be cleaned), the lower surface (the surface on which the opening 6j is formed) of the suction body 6a. It is comprised so that it may become (gamma) 2 (for example, 50 degrees). Note that if the angle is larger than γ2 (for example, if it exceeds 50 degrees), it is easy to sink into the futon, and the smooth operation of the futon suction port 6 is hindered.

As shown in FIG. 47, by setting the angle to the lower surface of the suction port main body 6a to γ1, the dust case 2 and the main body portion 10 do not contact the futon when using the vacuum cleaner main body 1 as a handy type. The cleaner body 1 can be smoothly moved back and forth.

As shown in FIG. 48, by setting the angle to the lower surface of the suction port main body 6a to γ2, it is possible to prevent the force to sink into the floor from acting strongly, and it is possible to smoothly move the front port 6 forward and backward. .

Thus, in the case of the futon suction port 6, the lower surface 6m of the suction body 6a is warped upward more than the opening 6j. Therefore, when advancing the futon suction opening 6, the surface of the futon is smoothed by the lower surface 6m. Surface irregularities can be overcome. Further, since the lower surface 6n of the suction port main body 6a is also warped upward than the opening 6j, the wrinkles on the surface of the futon are smoothed by the lower surface 6n and the irregularities on the surface of the futon are overcome Can. Thereby, it can suppress that the Futon suction port 6 gets hooked to Futon. Moreover, even if it applies to the rechargeable vacuum cleaner 100 with weak suction power, it can suck in firmly.

In addition, since the joint 6c pivoting in the front-rear direction is provided on the upper surface of the suction main body 6a in the futon suction port 6, the opening 6j, which is the suction port of the futon suction opening 6, can be reliably directed to the futon.

In addition, in the futon suction port 6, by rotating the joint 6c in the range of 15 degrees to 50 degrees with respect to the lower surface, the opening 6j, which is the suction port of the futon suction port 6, can be reliably directed to the futon.

In addition, since the rotational axis 6p of the joint 6c is disposed rearward of the central portion ST1 (see FIG. 43) of the suction port main body 6a in the front-rear direction in the futon suction port 6, the futon suction port 6 is advanced The futon suction port 6 is less likely to sink into the futon, and the futon suction port 6 can be moved smoothly.

  Next, the rotary brush 80 rotatably attached to the cleaner body 1 will be described with reference to FIGS. 49 to 51. 49 is a perspective view showing the storage state of the rotary brush, FIG. 50 is a perspective view showing the usage state of the rotary brush, and FIG. 51 is a side view showing the electric vacuum cleaner in a handy state when using the rotary brush.

As shown in FIG. 49, the rotary brush 80 includes a rotary brush portion 81 rotatably supported by the suction port 15 at the front end of the cleaner body 1 and a fixed brush portion 82.

The rotating brush portion 81 is configured to have a rotating base 81 a and a brush portion 81 b implanted in the rotating base 81 a.

The rotation base 81a has a right side 81a1 located on the left side of the suction port 15, a left side 81a2 located on the right side of the suction port 15, and a lower side 81a3 located below the suction port 15 in the stored state. ing. The end portions of the left side portion 81 a 1 and the right side portion 81 a 2 are rotatably supported on the outer surface of the pipe case portion 13. Further, the left side portion 81a1 and the right side portion 81a2 are formed such that the width in the front-rear direction widens toward the lower side portion 81a3.

The brush portion 81 b is formed backward on the left side 81 a 1, the right side 81 a 2 and the lower side 81 a 3. The implantation direction of the brush portion 81 b is parallel to the axial direction of the suction port 15.

The fixed brush portion 82 is configured to have a fixed base 82a fixed to the pipe case portion 13 and a brush portion 82b implanted in the fixed base 82a. The fixed brush portion 82 is disposed between the pipe case portion 13 and the rotating brush portion 81. The brush portion 82b is formed forward and downward with respect to the fixed base 82a.

As shown in FIG. 50, when the rotary brush portion 81 is turned, the brush portion 82b is turned from the rear to the front side to be obliquely downward. At this time, the plate-like portion 81 a 4 formed in the lower side portion 81 a 3 abuts on the contact surface 15 a formed above the suction port 15, whereby the rotation operation of the rotating brush portion 81 is restricted.

As described above, by setting the rotary brush 80 in the use state, the closed air can be configured by surrounding the entire periphery of the suction port 15 with the brush portions 81 b and 82 b on four sides, so that the suction performance can be improved.

As shown in FIG. 51, when using the vacuum cleaner main body 1 as a handy type, by rotating the rotary brush 80 to place the brush on the cleaning surface side, the tips of the brush portions 81 b and 82 b of the rotary brush portion 81 are It comes in contact with a flat cleaning surface. As a result, the gap with the cleaning surface can be reduced to improve the suction performance, and the cleaning surface can be cleaned without being damaged.

Further, as shown in FIG. 52, in the vacuum cleaner 100 provided with the suction body 3, the floor surface under the bed or sofa is set by using the stick state and putting the vacuum cleaner body 1 in a sleeping state. It will be possible to clean up.

Further, as shown in FIG. 53, an applied suction body 5 may be attached separately from the suction body 3. The tip of the applied suction body 5 is smaller than the tip of the suction body 3 so that the applied suction body 5 can be used by being attached to the suction port 15 and cleaning a narrow place where the suction body 3 does not enter. Is desirable. Moreover, in order to clean a high place which can not be reached by the handy type, it is desirable that the structure can be expanded and contracted.

By the way, in the case where the dust case is disposed above the pipe case, if the operation is stopped when the upper part (hand side) of the dust case is downward, the dust in the dust case flows back to the pipe case There is a risk. In the vacuum cleaner of such a configuration, it is necessary to provide a backflow prevention valve at the boundary between the dust case and the pipe case in order to prevent backflow. On the other hand, when the applied suction body 5 is attached to the vacuum cleaner 100 and the upper portion (dust filter 130 side) of the dust case 2 is directed downward, the dust case is placed under the pipe case portion 13 Since 2 is arranged, even if the operation is stopped in the state as shown in FIG. 53, the dust collected in the dust case 2 will not flow back to the pipe case portion 13 side. Further, even if the operation is stopped with the lower portion of the dust case 2 facing downward, the dust collected in the dust case 2 does not flow back to the pipe case portion 13 side. As described above, the backflow from the dust case 2 to the pipe case portion 13 can be prevented without providing the backflow prevention valve.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention. For example, the rotation mechanism portion 33 of the rotation handle 30 is not limited to the stick state shown in FIG. 1 and the handy state shown in FIG. 2 and can be used in an intermediate state between the handy state and the stick state. May be Such a configuration can be coped with by increasing the number of lock holes 36e formed in the lock plate 36a shown in FIG. In addition, the telescopic pipe 20 has a hollow pipe shape because the lead wire for connecting the operation buttons 31a and 31b of the rotary handle 30 and the main body substrate 50 is accommodated therein, but the present invention is not limited to this. By positioning the lead wire outside or arranging the operation button on the main body portion 10, it is not necessary to make the expandable pipe 20 into a pipe shape, as long as it can expand and contract in combination with the pipe case portion 13, for example It may be simply in the shape of a rod. Moreover, although the main-body part 10, the expansion-contraction pipe 20, the rotation mechanism part 33, and the rotation handle 30 are described in this order, it is not this limitation. For example, the main body, the rotation mechanism, the telescopic pipe, and the rotary handle may be in this order, and the telescopic pipe 20 may be housed in the rotary handle and rotated relative to the main body.

1 Vacuum cleaner body 2 Dust case (dust collector)
3 Suction body 6 Futon Suction mouth 6a Suction body 6b Rotor 6c Joint 6j Opening 6m Lower surface (front of lower surface of suction body)
6n lower surface (rear of lower surface of suction body)
6p Rotating shaft 10 Body 12d Body terminal 20 Telescopic pipe 25 Handle clamp (clamping means)
Reference Signs List 30 rotation handle 30s, 30t grip portion 32 opening 40 electric blower 60 storage battery (power storage device)
70 charging stand 71 base portion 71a mounting surface 72 stand portion 73 charging stand terminal portion 73a terminal block 73c charging terminal 75 weight 100 electric vacuum cleaner Ga center of gravity

Claims (2)

A suction case, a first connection pipe connected to be rotated in the front-rear direction with respect to the suction case, and a second connection pipe connected to be rotated in the left-right direction with respect to the first connection pipe In the suction body having
The rotation axis of the first connection pipe and the second connection pipe is orthogonal to the rotation axis of the inlet case and the first connection pipe, and the length direction of the first connection pipe Are orthogonal to
The second connection pipe has a protrusion at its tip,
The upper surface of the suction port case, the protrusions and to contact, a first connecting pipe which is connected to be rotated in the front-rear direction, is connected to be rotated in the horizontal direction with respect to the first connecting pipe A second connection pipe, and an abutment surface that restricts the forward and lateral movement of the second connection pipe ,
A vacuum cleaner having a spring for biasing the first connection pipe in the front-rear direction in the suction case. In the vacuum cleaner according to claim 1,
The width of the projection is narrower than the width of the second connection pipe, and the width in the left-right direction is wider than the length in the front-rear direction,
The width of the contact surface is wider than the width of the second connection pipe.

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