JPH08107844A - Electric vacuum cleaner - Google Patents

Abstract

PURPOSE: To make the carrying property of an electric vacuum cleaner main body better when necessary by a method wherein a braking member which comes into contact with a floor surface is provided on a hose port side, and running wheels are rotatably provided on the opposite side from the braking member, and in addition, a handle means is provided to be located on the braking member side. CONSTITUTION: At a lower part on the front surface of a lower main body case 2, which is the side where a hose port 7 is opened, a braking member 16 made of a rubber, a flexible urethane, etc., is provided in such a manner that the braking member can touch a floor surface. Also, a handle recessed part 17 as a handle means is provided so that hand can be put, in the vicinity of the top, which is a location being higher than the center of gravity on the front surface and is the side where the hose port 7 is provided. In addition, at lower parts on side surfaces of the rear surface side, which is the opposite side from the side where the hose port 7 is opened of an upper main body case, running wheels 18 which are rotatably supported by a shaft in the direction, which is perpendicular to the opening direction of the hose port 7, are provided. By doing so, an electric vacuum cleaner main body 1 does not accidentally move during a cleaning, and when necessary, the carrying property of the electric vacuum cleaner main body 1 can be made better.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner provided with a winding drum for winding a hose.

[0002]

2. Description of the Related Art Conventionally, an electric vacuum cleaner provided with a winding drum for winding a hose is disclosed in, for example, Japanese Unexamined Patent Publication No. 5-33706.
The configuration described in Japanese Patent No. 3 is known.

In the electric vacuum cleaner disclosed in Japanese Patent Laid-Open No. 5-337063, the motor is rotated to rotate the winding drum and the hose is wound, for example, by the operation of a hand operating portion provided with a switch or the like. And exhale,
An electric blower for sucking dust is driven by the operation of the hand operation unit, and cleaning is performed while the electric vacuum cleaner body containing the heavy electric blower is placed on the floor surface.

[0004]

By the way, in the electric vacuum cleaner disclosed in the above-mentioned Japanese Patent Laid-Open No. 5-337063, the electric vacuum cleaner main body accommodating the heavy electric blower is placed on the floor without moving. Although it is possible to perform cleaning while keeping the vacuum cleaner, it is not provided with wheels for traveling because it is not considered that the main body of the electric vacuum cleaner is easily moved. However, in practice, it is necessary to move the electric vacuum cleaner main body out of the storage place when starting cleaning, or to move the electric vacuum cleaner main body into the storage place after cleaning. And, for example, if the wheels are simply provided to improve the transportability of the vacuum cleaner main body, if the hose is pulled during cleaning, the vacuum cleaner main body will be inadvertently moved, for example, it may hit furniture or the like. There is.

The present invention has been made in view of the above problems, and it is possible to perform cleaning without moving a heavy vacuum cleaner body by providing a hose take-up drum, and carelessly during cleaning. Another object of the present invention is to provide an electric vacuum cleaner which does not move and which can improve the transportability of the electric vacuum cleaner main body when necessary.

[0006]

The electric vacuum cleaner of the present invention comprises:
In an electric vacuum cleaner in which a cylindrical winding drum that winds a hose through a hose opening that opens in an electric cleaning main body is rotatably provided, the electric vacuum cleaner main body is provided on the hose opening side and is attached to a floor surface. The braking member is brought into contact, the traveling wheel is rotatably provided on the opposite side of the braking member, and the handle means is provided at the braking member side.

[0007]

In the electric vacuum cleaner of the present invention, the electric vacuum cleaner main body is normally placed on the floor surface by the braking member provided at the hose mouth side and the traveling wheel, so that the electric vacuum cleaner main body is placed. It is easy to brake the main body of the vacuum cleaner with the brake member alone, and the vacuum cleaner body does not easily fall over even if the hose is pulled during cleaning.When transporting the vacuum cleaner body, the handle provided on the braking member side Since the electric vacuum cleaner body is caused to travel by the traveling wheels while the braking member is held apart from the floor surface, the lifting force of the handle means can be small, and the braking by the braking member can be easily released.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the vacuum cleaner of the present invention will be described below with reference to the drawings.

1 to 5, reference numeral 1 denotes an electric vacuum cleaner body. The electric vacuum cleaner body 1 has a lower main body case 2 having a bottomed rectangular tube shape having an open upper surface and a closed lower surface, and an open lower surface. An upper body case 3 which is a rectangular tube and is joined to the upper end of the lower body case 2 to close an opening on the upper surface of the lower body case 2, and a lid 4 which opens and closes an upper surface opening 3a of the upper body case 3. The main body case 5 is formed in the shape of a hollow box.

In the vacuum cleaner body 1, a rectangular hose port 7 whose longitudinal direction extends in the vertical direction is formed on the front surface of the upper body case 3, and a hose 8 is formed.
A locking means (not shown) for removably locking the grip portion 9 is provided. Further, on the rear surface of the upper main body case 3 opposite to the side where the hose port 7 is opened, there is provided a box-shaped accessory storage section 11 which is opened upward. And, in this accessory storage section 11, a mounting flange 12 is provided,
This mounting flange 12 is a crane mouth 13, furniture brush, suction mouth body 1
4, Holds accessories such as extension tube 15. The accessory storage unit 11 may be provided with a lid or the like that opens and closes the opening on the upper surface in order to prevent dust and the like from entering.

Further, in the vacuum cleaner main body 1, a braking member 16 such as rubber or soft urethane can be grounded on the floor surface F at the lower part of the front surface on the side where the hose port 7 of the lower main body case 2 is opened. A handle recess 17 as a handle means is provided in the vicinity of the upper portion, which is provided and is higher than the center of gravity of the front surface on the side where the hose port 7 is provided.
Is provided. Further, on the lower side surface on the rear side, which is the side opposite to the side where the hose port 7 of the upper body case 3 is opened
A traveling wheel 18 is provided that is rotatably supported along a direction orthogonal to the opening direction of the hose port 7.

Further, on the upper surface of the upper main body case 3, a handle hole portion which is elongated in the vertical direction is formed substantially at the center near the edge of the side surface.
19 is provided, and the handle portion 20 is slidably inserted into the handle hole portion 19. And this handle part 20
Is a gripping part 20a of a substantially slender rod to be gripped, and this gripping part
Leg 20 with both longitudinal ends of 20a bent in the same direction
It is formed in a substantially U shape with b and the leg part 20b is the handle hole part.
A handle portion 20 is slidably inserted in the up and down direction in 19 so as to be movable back and forth along the up and down direction of the upper body case 3. The handle portion 20 can be maintained in a state where the handle portion 20 is pulled out by a stopper or the like.

The main body 1 of the electric vacuum cleaner includes the braking member 16
And in a normal state when the vehicle is placed on the floor F by the traveling wheels 18,
When the electric vacuum cleaner body 1 is moved by braking due to the friction between the braking member 16 and the floor surface F and the vacuum cleaner body 1 is moved, the handle portion 20 is pulled out upward as shown in FIG.
The running wheels 18 are run by pushing or pulling the handle portion 20 while being separated from the floor surface F.

Further, on the inner surface side of the upper main body case 3, as shown in FIG. 2, there is provided a guide portion 24 which forms a drum chamber 23 having an approximately cylindrical inner peripheral surface. A part of the guide portion 24 is cut out so as to be continuous with the peripheral edge of the hose opening 7, and the drum chamber 23 on the inner peripheral side is communicated with the outside through the hose opening 7.

Further, as shown in FIGS. 1 and 5, the guide portion 24 has a roller holding portion which is located in the vicinity of both vertical edges of the hose port 7 and which projects inward in a wall shape.
25 are formed so as to face each other, and these roller holding portions 2 that face each other
Between 5 and 25, a pair of hose rollers 26 are rotatably supported along the both side edges of the hose port 7 in the vertical direction.

On the other hand, in FIGS. 2 to 5, 31 is a winding drum, and this winding drum 31 has a dust collecting opening 31a at one end.
And a flange portion 33 projecting in the outer peripheral direction is provided on the peripheral edges of both ends in the axial direction of the substantially cylindrical body portion 32 having the exhaust opening portion 31b opened at the other end, and is formed in a bobbin shape. Further, a guide wall portion 34 is provided on the outer peripheral surface of the body portion 32 in a spiral shape so as to project in a direction orthogonal to the outer peripheral surface, and the hose 8 is guided by the guide wall portion 34 to guide the outer peripheral surface of the body portion 32. The hose 8 is wound in a spiral shape so as to be positioned between the guide wall portions 34, 34.

As shown in FIG. 1, the hose 8 has a flexible hose body 36 and a grip portion 9 rotatably fitted to one end of the hose body 36 via a rotary tube 36a. The grip portion 9 is formed so that the hose port 7 cannot be inserted therethrough.

Further, the hose body 36 of the hose 8 is shown in FIG.
Further, as shown in FIG. 11, the connecting means 37 is provided for each length of, for example, 1 to 2 m, and is formed to have a length of, for example, 6 m. The connecting means 37 of the hose body 36 includes an end pipe 37a provided at each end of the hose bodies 36, 36 to be connected, and a hose body 36, which is engaged with the end pipe 37a.
It is composed of a joint pipe 37b connecting 36.

The end tube 37a is formed of a soft synthetic resin such as soft vinyl chloride into a substantially cylindrical shape, and the outer peripheral surface thereof is
A flange-shaped flange portion 38 is formed substantially in the center in the axial direction, and a flange-like locking claw portion 39 is formed on the tip side, which is one end side in the axial direction from the flange portion 38, like the flange portion 38. Are formed. Further, a part of the engaging claw 39 is cut out in a circular arc shape in the right-hand screw direction to form an intake portion 39a.

On the other hand, the joint pipe 37b is formed of a soft synthetic resin such as soft vinyl chloride into a substantially cylindrical shape like the end pipe 37a, and the end pipe 37a is formed on the inner peripheral surface at both ends in the axial direction.
The engaging groove portion 40 that is engaged with the engaging claw portion 39 is formed in an annular groove shape.

The end pipe 37a is fitted and fixed to the hose body 36 at the base end side, which is the side where the locking claw portion 39 is not provided, until the flange portion 38 abuts the end edge of the hose body 36. ing.
Furthermore, the edge of the engaging groove 40 on the tip side is fitted and inserted from the inlet 39a of the locking claw 39 to the base end side, and both ends of the joint pipe 37b are axially aligned with the flange 38 of the end pipe 37a. The engagement groove portion 40 is engaged with the locking claw portion 39 until both edges come into contact with each other, and the joint pipe 37b is rotatably fitted and inserted into the end pipe 37a to connect the hose body 36.

Further, on the outer peripheral edge of the flange portion 33 of the winding drum 31, as shown in FIGS. 2 to 5, there is provided a rail portion 41 formed in a groove shape toward the outer periphery.

Further, the winding drum 31 is formed with a dome portion 42 projecting downward in a substantially cylindrical shape so as to cover the exhaust opening 31b at the inner peripheral edge of the lower end in the axial direction.
At the tip of the drum pulley, a cylindrical drum coaxial with the body 32
42a is provided. Further, a cylindrical tube body 43 is fitted on the central axis of the drum pulley 42a. The dome portion 42 and the drum pulley 42a are formed with a plurality of ventilation ports 42b communicating with the central axis of the body portion 32.

Further, a bearing portion 45 is provided in the center of the upper surface of the lower main body case 2 and a bearing portion 45 is provided on the central axis and projects upward in a cylindrical shape. Also, the upper body case 3
Retaining portions 47 projecting inward in a substantially triangular wall shape are provided at the corners on the inner surface side of the upper and lower portions, respectively, and the outer peripheral surfaces of the retaining portions 47 contact the rail portion 41 of the winding drum 31 near the tips thereof. Holding pulleys 48 that are held in contact with each other are rotatably provided.

The take-up drum 31 has a drum pulley 42.
The cylindrical body 43 of a is the bearing of the bearing portion 45 of the lower body case 2.
44 is rotatably fitted, and the holding pulley 48 is engaged with the rail portion 41 of the flange portion 33, so that the drum chamber in the main body case 5
It is rotatably supported in 23. The distance between the peripheral surface of the body portion 32 of the winding drum 31 and the inner peripheral surface of the guide portion 24 is slightly wider than the outer diameter of the hose 8 wound on the winding drum 31, that is, the hose. The inner side of 8 is the body 32
The hose 8 does not come into contact with the inner peripheral surface of the guide portion 24 when the hose 8 is in contact with the winding drum 31 and is wound around the winding drum 31.

As shown in FIGS. 2, 4 and 5, a gearbox 50 is provided on the upper surface of the lower body case 2, and a motor 51 is attached to the gearbox 50. In addition, the gearbox 50 has a small diameter pulley.
A speed reduction pulley 54 is provided rotatably, in which 52 and a large-diameter pulley 53 are coaxially formed. And the output shaft of the motor 51
An output pulley 57 is rotatably supported by 56, and an endless output belt 58 is wound around the output pulley 57 and the large-diameter pulley 53 of the reduction pulley 54, and the small-diameter pulley of the reduction pulley 54 is also provided.
An endless deceleration belt 59 is stretched around 52 and the drum pulley 42a of the winding drum 31, and the motor 51 drives the winding drum.
The 31 can be rotated in both directions.

Further, as shown in FIG. 2, on the inner peripheral side of the upper end which is one end side of the body portion 32 of the winding drum 31, as shown in FIG. 2, a duct portion which opens a communication hole 61 on the upper end side in the axial direction of the body portion 32. 62 is partitioned and formed in the duct portion 62, as shown in FIG.
A connection duct 63 is housed. And the connecting duct 63
Is formed in a tubular shape that is bent into a substantially L shape, one end of which is airtightly connected to the communication hole 61 via the packing 64, and the other end of which is directed tangentially to the outer peripheral surface side of the body portion 32 of the winding drum 31. The hose body 36 of the hose 8 is fitted and fixed to the other end thereof.

On the other hand, the lid body 4 is composed of an outer lid portion 66 and an inner lid portion 67, the outer lid portion 66 is formed in a disk shape, and a handle portion is provided on the upper surface.
68 is formed, and a connecting portion 69 is provided substantially in the center of the lower surface. Further, the inner lid portion 67 is formed to be hollow from a substantially disc-shaped upper inner lid portion 70 having an opened lower surface and a substantially disc-shaped lower inner lid portion 71 having an opened upper surface. As shown in FIGS. 2 and 7, a substantially circular connecting hole 72, into which the connecting portion 69 of the outer lid portion 66 is engaged, is bored at approximately the center of the upper inner lid portion 70 of the inner lid portion 67. Has been done.

The connecting portion 69 has a diameter substantially equal to the diameter of the connecting hole 72 of the upper inner lid portion 70 of the inner lid portion 67 projecting downward from the lower surface of the outer lid portion 66 along the axial direction of the outer lid portion 66. It has a cylindrical flexible joint portion 74 having a diameter, and a distal end of the joint portion 74 is formed with an engaging portion 75 having a large diameter, and the distal end of the engaging portion 75 extends along the axial direction. A cut groove 76 is formed, and the engagement portion 75 can be reduced in diameter by the cut groove 76.

Further, two annular seat plates 77, 77 are rotatably fitted in the joint portion 74 so as to sandwich the upper inner lid portion 70 of the inner lid portion 67, and further the engaging portion 75 side. An O-ring 78 that is located between the seat plate 77 and the upper inner lid portion 70 and that maintains airtightness is fitted and inserted. Then, the engaging portion 75 of the connecting portion 69 is engaged with the connecting hole 72 of the upper inner lid portion 70, the outer lid portion 66 and the inner lid portion 67 are rotatably joined to each other, and the lid body 4 is formed. Has been formed.

Further, as shown in FIG. 2, a suction port 79a is formed at a substantially central portion of the lower inner lid portion 71 of the inner lid portion 67 so as to project downward in a tubular shape.
A pipe portion 79 that opens is formed. Further, as shown in FIG. 3, in the lower inner lid portion 71, an air passage hole that is opened to face the communication hole 61 of the duct portion 62 of the winding drum 31 and communicates with a connection duct 63 to which the hose 8 is connected. 80 are formed. Then, on the lower surface of the upper inner lid portion 70 and the upper surface of the lower inner lid portion 71,
Air passage ribs 81, 81 that face each other and project in a wall shape are formed, and by joining the upper inner lid portion 70 and the lower inner lid portion 71, the air passage ribs 81, 81 are formed in the inner lid portion 67. An internal air passage 82 that opens an air passage hole 80 communicating with the suction port 79a of the pipe portion 79 and the hose 8 is formed at the bottom.

In the lid body 4, the outer lid portion 66 is engaged with the upper surface opening 3a of the upper body case 3, and the inner lid portion 67 is airtight in the dust collecting opening 31a on the upper end side of the winding drum 31. The outer lid portion 66 is engaged and the inner lid portion 67 is rotatably attached to the main body case 5 together with the winding drum 31 without rotating.

On the other hand, on the inner peripheral surface of the winding drum 31, as shown in FIG. 2, the ventilation hole 84 is located substantially at the center in the axial direction and protrudes in a wall shape toward the central axis, and has a substantially circular shape at the substantially center. A ring-shaped dust collecting rib 85 having an opening is provided, and the dust collecting rib 85 and the inner lid portion 67 of the lid body 4 that closes the dust collecting opening 31a and engages with the upper end of the winding drum 31 are provided. The dust collecting chamber 86 is partitioned and formed.
Then, in the dust collecting rib 85, so as to close the ventilation hole 84,
A breathable filter 87 is detachably provided.

Further, a holder 90 for detachably attaching a dust bag 89 is provided near the base end of the pipe portion 79 projecting downward on the lower surface of the inner lid portion 67 of the lid body 4.

Further, below the dust collecting rib 85, a dust collecting rib is provided.
An annular blower rib 92 having the same diameter as 85 is provided to collect dust.
An air intake hole 93 is formed substantially at the center of the blower rib 92 facing the 85, and an electric blower chamber 94 is defined by the blower rib 92 and the dome portion 42 formed in the lower portion of the winding drum 31. ing.

The dust collecting chamber 86 and the electric blower chamber 94 are
It communicates with each other through a ventilation hole 84 of the dust collecting rib 85 and an intake hole 93 of the blower rib 92. Further, above the dust collecting chamber 86, the suction port 79a of the pipe portion 79 of the lid body 4 is attached by attaching the lid body 4.
An internal air passage 82 that is open is located, and an air passage is formed along the up-down direction that is the axial direction of the winding drum 31.

In the electric blower room 94, an electric blower is installed.
96 are provided. The electric blower 96 includes a fan (not shown) and an electric motor 97 that rotationally drives the fan.
And a fan cover 98 that covers the fan. A suction port 99 is formed in the center of the fan cover 98, and an exhaust port (not shown) is formed in the frame of the electric motor 97.

Further, on the inner peripheral surface of the winding drum 31, an annular support rib 101 protruding inwardly of the electric blower chamber 94 in a wall shape.
The electric blower 96 is supported such that the suction port 99 faces the intake hole 93 of the blower rib 92 via a support 102 made of, for example, rubber, which is attached near the inner peripheral edge of the support rib 101. The suction port 99 of the electric blower 96 is disposed in the dust collecting chamber 86 so as to be airtightly communicated with each other via the ventilation hole 84 of the dust collecting rib 85 and the intake hole 93 of the blower rib 92.

An electric equipment body 104 is provided on the upper surface of the lower body case 2, and the electric equipment body 104 includes
A power cord 106 provided with a plug 105 connected to an outlet (not shown) for supplying commercial AC power is connected. The power cord 106 can be pulled out and wound up by a winding means (not shown) from a cord opening 107 formed in the lower portion of the lower body case 2.

Further, as shown in FIG. 13, the electric device main body 104 includes a circuit board (not shown) and a movable iron core type transformer.
An electric device such as 108 is accommodated, and the circuit board includes a motor control unit 109 that controls the drive state of the motor 51 and an electric blower control unit 110 that controls the drive state of the electric blower 96.
Also, a control means 112 including a main control section 111 to which the motor control section 109 and the electric blower control section 110 are connected is mounted.

Then, the electric blower control unit 110 detects a signal from a temperature sensor (not shown) attached in the vicinity of the electric motor 97 of the electric blower 96, and the electric motor is detected by this signal.
When it is determined that 97 becomes equal to or higher than the predetermined temperature T ₀ , FIG.
As shown in, the temperature detecting means 113 for controlling the input of the electric blower 96 is connected. Further, the motor control unit 109 is provided with a current detection unit (not shown) that detects a current value of the motor 51 and an automatic reversal control unit (not shown) that reverses the rotation direction of the motor a predetermined number of times.

Further, the electric blower control unit 110 has a configuration shown in FIG.
As shown in 3, an electric wire 11 for supplying power to the electric blower 96
5, a part of the electric wire 115 has a curl cord 115a formed in a coil shape as shown in FIG. Further, a lead wire 116 for supplying power to the motor 51 is connected to the motor control unit 109. And wire 11
The reference numeral 5 is wired by being inserted into the inner circumference of a cylindrical body 43 that pivotally supports the winding drum 31 on the main body case 5. By using a curl cord 115a as a part of the electric wire 115, when the winding drum 31 is rotated by the drive of the motor 51, twisting or the like does not occur.

Further, the main control section 111 includes a winding drum.
A proximal end detection switch 65a and a distal end detection switch 65b for detecting a proximal end portion and a distal end portion of the hose 8 arranged on the body portion 32 of 31 are connected, respectively. Further, in the main control unit 111, a main body side control switch provided on the upper surface of the main body case 5 for controlling the driving state of the motor 51.
Main body operation unit 118 with 117 etc. and motor
A display unit 119 for displaying the driving state of the 51 and the electric blower 96 and the presence / absence of power supply by a light emitting diode or a buzzer is connected.

Further, in the movable iron core type transformer 108 which is an electric device, the hose 8 provided on the front surface of the main body case 5 is used.
A power switch 121 provided on a locking means (not shown) for locking the grip portion 9 is connected. The power switch 121 is opened when the grip 9 is locked by the locking means, and closed when the grip 9 is removed from the locking means. When the power switch 121 is closed, the movable iron core (not shown) of the movable iron core type transformer 108, which is an electric device, moves to close the circuit, and commercial AC power is applied to the main control unit 111. It is like this.

On the other hand, in the grip portion 9 of the hose 8, as shown in FIGS. 8 and 9, an input switch 122 for setting the driving state of the electric blower 96 and a hand side control switch 123 for setting the driving state of the motor 51. Hand operation part 124 where
, A wireless unit 125 that sends and receives radio waves such as sound waves, radio waves, and infrared rays; a power supply unit 126 such as a battery; and a light emitting diode display or a buzzer to indicate the drive status or abnormality of the electric blower 96 and the motor 51. A hand display unit (not shown) for notifying is provided.

On the inside of the upper part of the upper body case 3,
The main body radio unit that receives and transmits radio waves transmitted from the handheld radio unit 125 provided in the grip portion 9 of the hose 8.
127 is provided.
It is connected to the main control unit 111 which constitutes the control means 112 for the circuit board housed in the circuit board 04.

Furthermore, at the tip of the grip portion 9 of the hose 8,
The extension pipe 15 and the suction port body 14 are connected, and the extension pipe 15 and the suction port body are connected.
The dust sucked from 14 is collected in the dust collecting chamber 86 from the internal air passage 82 via the hose 8. In addition, the air is sucked from the dust collection chamber 86 through the ventilation hole 84 and the suction hole 93 to the suction port 99 of the electric blower 96.
From the exhaust port (not shown) of the electric blower 96 to the electric blower chamber 94, and from the electric blower chamber 94 through the dome portion 42 and the ventilation port 42b of the drum pulley 42a through the lower portion of the main body case 5 to the main body case 5. The air is exhausted to the outside air from an exhaust port (not shown) provided in the.

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

First, the electric vacuum cleaner body 1 housed in a predetermined housing place is put in the hand recess 17 and lifted up,
The braking member 16 grounded on the floor F is lifted so that the braking member 16 is placed on the floor F only by the traveling wheels 18 to release the braking. Then, in this state, pull out the handle recess 17 to the front,
The main body 1 of the electric vacuum cleaner is run, and the main body 1 of the electric vacuum cleaner is pulled out from the storage place.

Since the handle recess 17 is provided at a position higher than the center of gravity of the vacuum cleaner body 1 on the front surface of the vacuum cleaner body 1 on the side where the braking member 16 is provided,
The force for lifting 16 to separate it from the floor surface F is small, and the braking of the electric vacuum cleaner body 1 can be easily released.

Next, pull out the power cord 106 and plug it.
Connect 105 to an outlet not shown. Then, the grip portion 9 of the hose 8 is removed from the locking means (not shown) provided on the front surface of the main body case 5, and the power switch of the locking means is removed.
121 is closed to supply power to the main control unit 111 from the commercial AC power supply.

Further, pull the hose 8, or
A predetermined radio signal is output from the hand radio unit 125 by operating the hand control switch 123 of the hand operation unit 124, and this signal is received by the main unit radio unit 127 of the electric vacuum cleaner body 1, and the base end portion of the hose 8 is received. The main control section 111 detects the closing of the base end detection switch 65a, and the main control section 111 and the motor control section 109 cause the motor 51 to move in a predetermined direction, that is, in the direction in which the winding drum 31 discharges the hose 8. The hose 8 is driven to rotate at a low speed so that the hose 8 is pulled out by a predetermined amount. Then, the extension tube 15 and the suction port body 14 are connected to the tip of the grip portion 9 of the hose 8.

Then, the input switch 122 of the hand operating portion 124 of the grip portion 9 is operated to drive the electric blower 96 with a predetermined input, and the suction portion 14 is pushed or pulled by pushing or pulling the grip portion 9.
Is run on the floor surface F, which is the surface to be cleaned, for cleaning.
By driving the electric blower 96, dust is sucked together with air from the suction port body 14, and the dust collection chamber 86 is provided via the extension pipe 15, the hose 8, the connecting duct 63 of the duct portion 62, the internal air passage 82, and the pipe portion 79. The dust flows into the dust collecting bag 89 mounted inside, and the dust is captured in the dust collecting bag 89.

The air filtered by the dust collecting bag 89 is supplied to the filter 87, the ventilation hole 84, the intake hole 93, the suction port 99 of the electric blower 96, the electric blower 96, and the exhaust port (not shown) of the electric blower 96. , The electric blower chamber 94, the dome portion 42, and the ventilation port 42b of the drum pulley 42a in order, and the vacuum cleaner body 1 through an exhaust port (not shown) provided in the body case 5.
It is exhausted to the outside air as exhaust air.

When the dust bag 89 is full or when the hose 8 is clogged with dust or the like, the suction resistance increases and the degree of vacuum on the negative pressure side of the electric blower 96 increases. This vacuum state is detected by a vacuum degree detection means (not shown), and a hand display portion (not shown) provided in the grip portion 9 notifies that by displaying a light emitting diode or a buzzer. In response to this notification, the input switch 122 of the hand operation unit 124 is operated to stop the drive of the electric blower 96, and the handle unit is
The lid 4 is removed from the main body case 5 together with the dust collecting bag 89 by holding the 68, and the maintenance inspection such as replacing the dust collecting bag 89, cleaning the filter 87, and removing the blocked dust is performed.

When the floor surface F at a position far from the electric vacuum cleaner body 1 is cleaned during cleaning, when the hose 8 is further pulled out, the hose 8 is pulled again, or the hand side of the hand operating portion 124 is opened. By operating the control switch 123,
The motor 51 is rotationally driven at a low speed so that the winding drum 31 rotates in the direction in which the hose 8 is discharged, and the hose 8 is pulled out by a predetermined amount.

When the entire length of the hose 8 is discharged, the hose detecting means (not shown) detects that the entire length of the hose 8 has been discharged, and stops the motor 51.

By stopping the motor 51, it is possible to prevent the motor 51 from receiving an input when the take-up drum 31 cannot rotate due to the discharge of the entire hose 8, and the motor 51 and the take-up drum 31 are prevented. It is possible to prevent a load from being applied to the hose 8 and damage to the cylindrical body 43 axially supporting the winding drum 31, the holding portion 47 and the holding pulley 48, the hose 8, and the motor 51.

On the other hand, when the excessively pulled out hose 8 is wound up inside the vacuum cleaner body 1 when cleaning the floor surface F from the far position to the near position, the hand side of the hand operating portion 124 of the grip portion 9 is used. By operating the control switch 123, the motor 51 is rotationally driven to rotate the hose 8 at a medium speed so that the winding drum 31 is rotated in the direction in which the hose 8 is wound so that the rotation speed is accelerated to a predetermined medium speed. Take up a predetermined amount.

When the cleaning is completed and the hose 8 is wound up, the main body side control switch 117 of the main body operating portion 118 of the electric vacuum cleaner main body 1 is operated, and at the same time as this operation or within a predetermined time, the hand operation portion is operated. Operate the hand side control switch 123 of 124. By these operations, the main control unit 111 and the motor control unit 109 set the motor 51 to the hand side control switch 123.
The hose 8 is controlled to be wound at a high speed by rotating and driving the winding drum 31 at a high speed, which is an input higher than the input of the motor 51 by a single operation.

When the entire length of the hose 8 is wound up, the hose detecting means (not shown) detects that the entire length of the hose 8 is wound up, and the driving of the motor 51 is stopped.

When the motor 51 is stopped, the entire hose 8 is wound up, and the grip portion 9 of the hose 8 comes into contact with the hose opening 7 so that the winding drum 31 cannot rotate.
It is possible to prevent the input from being applied to 51, load is applied to the motor 51, the winding drum 31, and the hose 8, and the cylindrical body 43 that axially supports the winding drum 31, the holding portion 47, the holding pulley 48, the hose 8, and the motor 51. Can be prevented from being damaged.

Further, the hose 8 is caught in the main body case 5, and the main control unit 111 and the motor control unit 109 load the motor 51 and reach the predetermined input P ₀ , as shown in FIG. If it is determined that the hose has been rotated, the rotation of the motor 51 is reversed a predetermined number of times in the opposite direction, which is the winding direction, by the not-shown automatic reversal control unit of the motor control unit 109, and the hose is reached when the normal input P ₁ is reached. The motor 51 is driven to rotate in the winding direction of 8. If the normal input P ₁ is not obtained even after reversing a predetermined number of times, it is determined that there is an abnormality, the control for winding is stopped, and the display unit 119 of the vacuum cleaner body 1 and a hand display (not shown) are displayed. The department will notify that fact.

The floor surface of the vacuum cleaner body 1 is fixed to the vacuum cleaner body 1 due to the inertia generated by the drive of the motor 51 when the hose 8 is wound or discharged, the inertia caused by the drive of the electric blower 96, and the routing of the hose 8 during cleaning. Even if a force to move on the F is applied, since the vacuum cleaner body 1 is braked on the floor surface F by the braking member 16, the vacuum cleaner body 1 is prevented from moving, and for example, When the vacuum cleaner body 1 is placed near the stairs, it is possible to prevent the vacuum cleaner body 1 from moving and rolling down the stairs. Further, when the hose 8 is pulled during cleaning, a force is exerted to tilt the electric vacuum cleaner body 1 toward the hose mouth 7 side around the braking member 16 placed on the floor surface F, but the braking member 16 Since it is provided on the hose opening 7 side, the distance between the portion of the braking member 16 that abuts on the floor surface F serving as the fulcrum and the position of the hose opening 7 where the hose 8 serving as the point of action is pulled out becomes long. Therefore, a large amount of moment is required to tilt the electric vacuum cleaner body 1 about the braking member 16, so that the electric vacuum cleaner body 1 can be prevented from falling.

When the electric vacuum cleaner body 1 is put away, as shown in FIG. 15, the handle portion 20 is slid upward and pulled up, and the handle portion 20 is held and the braking member 16 is held.
And tilting the electric vacuum cleaner body 1 placed on the floor F by the running wheels 18 to the rear side which is the running wheels 18, and pushing or pulling the handle portion 20 with the braking member 16 separated from the floor F. The traveling wheel 18 is caused to travel, and the electric vacuum cleaner body 1 is moved to a predetermined storage location. After that, the handle portion 20 is slid downwardly to be accommodated, the handle recessed portion 17 is lifted to release the braking again, and the electric vacuum cleaner body 1 is caused to travel by the traveling wheel 18 to accommodate, for example, under the stairs. Store in place. Then, the electric vacuum cleaner body 1 is again attached to the braking member 16 and the traveling wheels.
Place it on the floor F with 18 and put it away.

In the above embodiment, during cleaning or storage, the braking member 16 provided with the electric vacuum cleaner body 1 on the hose opening 7 side and the running wheel 18 are provided.
Since it is placed on the floor surface F with, the electric vacuum cleaner body 1 can be easily braked only by placing the electric vacuum cleaner body 1 on the floor surface F, and the braking member 16 is provided on the hose opening 7 side. Since it is provided, the vacuum cleaner body 1 can be prevented from tipping over even if the hose 8 is pulled during cleaning, and the handle recess 17
The force that lifts up and separates the braking member 16 from the floor surface F is small, and braking by the braking member 16 can be easily released.

Further, when the electric vacuum cleaner body 1 is transported, the electric vacuum cleaner body 1 is mounted on the floor surface F by the running wheels 18 by holding the handle recess 17 provided at a position higher than the center of gravity on the braking member 16 side. Since the vehicle is placed and traveled, the distance from the traveling wheel 18 to the handle recess 17 becomes long, so that the force for lifting the handle recess 17 and separating the braking member 16 from the floor F can be further reduced.
The braking by the braking member 16 can be easily released, and since the handle recess 17 is at a high position, the vacuum cleaner body 1 can be easily moved by holding the handle recess 17.

In the above embodiment, the motor 51 is driven to rotate the winding drum 31, and the hose 8 is wound and discharged.
Manual winding drum 31 with a handle etc. instead of 51
The same effect can be obtained by rotating the hose to wind up and discharge the hose 8.

Further, although the handle concave portion 17 has been described as the handle means, any structure can be used such that the vacuum cleaner body 1 can be lifted so that the braking member 16 is separated from the floor surface F. Good.

Further, the handle recess 17 is provided on the front surface of the vacuum cleaner main body 1 at a position higher than the center of gravity. However, for example, it is provided on both front surfaces of the vacuum cleaner main body 1 from the center of gravity of the vacuum cleaner main body 1 to the hose port 7 side. The same effect can be obtained even if it is provided at any position on the side where the braking member 16 is provided.

[0071]

According to the electric vacuum cleaner of the present invention, the electric vacuum cleaner main body is normally placed on the floor surface by the braking member provided on the hose mouth side and the traveling wheel, so that the electric vacuum cleaner main body is placed. The vacuum cleaner body can be easily braked by the braking member just by mounting the vacuum cleaner body, and even if the hose is pulled during cleaning, the vacuum cleaner body will not easily fall down, the stability can be improved, and the vacuum cleaner body can be transported. At this time, since the braking member is moved away from the floor by the handle means provided on the braking member side and the electric vacuum cleaner body is caused to travel by the running wheels, the lifting force of the handle means is small.
The braking by the braking member can be easily released.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an electric vacuum cleaner of the present invention.

FIG. 2 is a side sectional view of the same.

FIG. 3 is a plan sectional view of the same.

FIG. 4 is a bottom sectional view of the same.

FIG. 5 is a partially cutaway front view showing the same winding drum.

FIG. 6 is a partially cutaway side view showing the same connection duct.

FIG. 7 is a cross-sectional view showing the above connecting portion.

FIG. 8 is a plan view showing the vicinity of the grip portion of the same hose.

FIG. 9 is a side sectional view of the same.

FIG. 10 is a cross-sectional view showing a connecting means of the same hose.

FIG. 11 is an explanatory diagram showing a connection state of the same hose.

FIG. 12 is an explanatory view showing a movement situation of the same electric vacuum cleaner body.

FIG. 13 is a block diagram showing a control means of the above.

FIG. 14 is a graph illustrating an input of the motor of the above.

FIG. 15 is a graph explaining the relationship between the input of the electric blower and the temperature of the electric motor.

[Explanation of symbols]

 1 Vacuum cleaner main body 7 Hose mouth 8 Hose 16 Braking member 17 Handle recess as a handle means 18 Traveling wheel 31 Winding drum

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Shigeru Sato 2-6-13 Nakameguro, Meguro-ku, Tokyo Inside Tech Meguro Office (72) Inventor Kyoichi Morioka 1-1-1 Shibaura, Minato-ku, Tokyo Inside the Toshiba Headquarters office (72) Inventor Satoshi Noguchi 1-1-1, Shibaura, Minato-ku, Tokyo Inside the Toshiba headquarters office (72) Inventor Takuichi Murata 1-1-1 Shibaura, Minato-ku, Tokyo Shares Company Toshiba Head Office

Claims (1)

[Claims] 1. An electric vacuum cleaner in which a tubular winding drum for winding a hose is rotatably provided through a hose opening opened in the electric cleaning body, wherein the electric vacuum cleaner body is provided on the hose opening side. A braking member provided on the floor surface; a running wheel rotatably provided on the opposite side of the braking member; and a handle means provided on the braking member side. And vacuum cleaner.