JP2003210370A - Electric vacuum cleaner - Google Patents

Abstract

(57) [Problem] To provide an upright type vacuum cleaner capable of adjusting the overall height with a simple and robust mechanism. SOLUTION: The electric vacuum cleaner 1 includes a suction port body 10, a dust collecting device 20, and an electric blower 30 for forming an airflow that enters from the suction port body 10 and passes through the dust collecting device 20. Dust collector 2
The outer tube 51 of the telescopic rod 50 is fixed to the casing 21 of No. 0, and the inner tube 52 of the telescopic rod 50 is connected to the suction port body 10. The telescopic rod 50 is provided with a lock means 60 for maintaining a predetermined telescopic length. Suction port body 10 and dust collector 20
Is formed by an expansion hose 70 passing outside the expansion rod 50 or an internal space of the expansion rod 50. The dust collecting device 20 includes a cyclone dust collecting unit 40.

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 having a suction port and a dust collector.

[0002]

2. Description of the Related Art A so-called canister type electric vacuum cleaner in which a suction body is connected to a cleaner body having a built-in electric blower via a suction hose and a suction pipe is a vacuum cleaner body, a suction hose, a suction pipe, and a suction pipe. The mouth can be separated as needed, and the height can be reduced to be stored. If the suction pipe is a telescopic type, expand or contract to an appropriate length, and if multiple short pipes are connected, connect all the pipes or pull out a part of the pipe to handle the height of the user. The height of can be adjusted.

On the other hand, in a so-called upright type vacuum cleaner in which a suction port which moves in contact with the floor and an electric vacuum cleaner body are vertically stacked, the height adjustment is not as free as in a canister type. Absent. Normally, when storing an upright type vacuum cleaner, store it as it is. Considering storage, the overall height of the upright type vacuum cleaner should be low. However, considering that it is used by a taller person, it is better that the height is high and the handle portion is easy to grip.

Japanese Laid-Open Patent Publication No. 2-74225 discloses an upright type vacuum cleaner in which the height of the cleaner body can be changed. The structure is shown in FIG.

The vacuum cleaner shown in FIG. 12 has a suction port 136.
A cleaner body 111 is slidably attached to a pipe 122 extending from the cleaner body 111, and the cleaner body 111 and the suction port 136 are connected by a bellows hose 143 so as to communicate with each other. An operation handle 135 is formed on the upper end of the pipe 122. In this vacuum cleaner, when cleaning the floor normally, the position of the cleaner body 111 is lowered so that the weight of the cleaner body 111 is not applied to the wrist. When cleaning the sofa or the bottom of the bed, the vacuum cleaner body 111 is pulled up so that the suction port 136 can easily enter the narrow gap.

The pipe 122 is expandable and contractible, and if it is contracted, the electric vacuum cleaner can be used as a hand cleaner.

[0007]

The electric vacuum cleaner shown in FIG. 12 can easily clean a sofa or the bottom of a bed. It can also be used as a hand cleaner by shortening its overall length. However, the fact that the pipe 122 is a telescopic type means that the pipe 122 is a combination of an outer pipe and an inner pipe, and the pipe diameter changes midway. It is not easy to realize a mechanism in which the cleaner body 111 slides smoothly on a pipe whose diameter changes.

Moreover, the cleaner body 111 is connected to the pipe 122.
In addition to locking means for fixing the pipe 122 at a predetermined position,
Locking means are also required to secure the extended or contracted position. In particular, the lock means for fixing the stretched state of the pipe 122 is difficult to design because the cleaner body 111 slides on the outside.

The present invention has been made in view of the above problems, and an object thereof is to make it possible to realize an upright type electric vacuum cleaner whose total height can be adjusted with a simple and robust mechanism.

[0010]

The electric vacuum cleaner of the present invention has the following structure.

(1) An electric vacuum cleaner equipped with a suction port body, a dust collector, and an electric blower that forms an air flow that enters from the suction port body and passes through the dust collector, wherein a casing of the dust collector is provided. A tube constituting one of the telescopic rods was fixedly installed, and the tube constituting the other of the telescopic rods was connected to the suction port body.

According to this structure, the total height of the electric vacuum cleaner can be adjusted by adjusting the length of the telescopic rod, and the tube constituting one side of the telescopic rod is fixed to the casing of the dust collector. The rigidity of the combination of the dust collector and the telescopic rod is increased. Further, the height of the dust collecting device can be determined only by providing the telescopic rod with the locking means for maintaining the predetermined telescopic length.

(2) The suction passage between the suction port body and the dust collector is constituted by a telescopic hose.

According to this construction, the suction passage can be simply constructed.

(3) The suction passage between the suction port body and the dust collecting device has an internal space of the telescopic rod.

According to this structure, since the suction passage is formed inside the telescopic rod, the structure is simple and the appearance is smart.

(4) A handle is formed on the dust collector.

According to this structure, the handle of the dust collector can be gripped for cleaning.

(5) The electric blower is housed in the casing of the dust collector.

According to this structure, the dust collecting device and the electric blower are integrated into one casing, so that a compact structure can be obtained.

(6) A main body for accommodating the electric blower is provided, and the main body and the dust collector are connected by a suction hose.

According to this structure, the heavy electric blower can be supported by the main body, and only the dust collector can be held for light cleaning.

(7) The dust collector is provided with a cyclone dust collector.

According to this structure, the cyclone dust collecting portion and the telescopic rod can be arranged in parallel to increase space efficiency and ensure the telescopic stroke of the telescopic rod.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of an electric vacuum cleaner of the present invention will be described below with reference to FIGS.

The vacuum cleaner 1 has three main components. That is, the suction port body 10, the dust collecting device 20, and the telescopic rod 50 connecting the both.

The suction port body 10 is supported in contact with the floor and has a suction port 11 facing the floor. A connection port 12 communicating with the suction port 11 is formed on the upper surface of the suction port body 10. The suction port body 10 is appropriately provided with a movement assisting means such as a roller to facilitate movement on the floor.

The dust collector 20 has a substantially cylindrical casing 21.
Equipped with. As shown in FIG. 3, the casing 21 has an electric blower 30 built-in in the upper part, and a cyclone dust collecting part 40 in the lower part. The configuration of the dust collector 20, particularly the arrangement of each element in the space will be described assuming that the casing 21 is supported with its axis lined vertically.

A horizontal partition 22 is provided inside the casing 21.
And the electric blower 30 is installed on it. The electric blower 30 has a suction side facing downward, sucks air from the cyclone dust collecting unit 40 side through the suction port 23 provided in the partition wall 22, and exhausts the air from the exhaust port 24 provided in the front surface of the casing 21. Handle 25 on casing 21
Is provided.

A control unit 31 is installed above the electric blower 30. The control unit 31 is responsible for overall driving and control of the electric vacuum cleaner 1. The control unit 31 has a plurality of push buttons 32. The tip of the push button 32 penetrates the casing 21 and projects to the upper surface of the casing 21. Further, the power cord 33 extends from the control unit 31.

The cyclone dust collecting section 40 is located above the separation chamber 4
1. A dust cup 42 is provided below. Separation chamber 41
Is molded integrally with the casing 21. The dust cup 42 is molded as a separate member attachable to and detachable from the casing 21.

An inflow port 43 is provided on one side of the separation chamber 41. The inflow port 43 is set at a position and an angle that generate a swirling airflow along the inner peripheral wall of the separation chamber 41 as seen in FIG.

An exhaust tube 44 is arranged at the center of the separation chamber 41. The exhaust pipe 44 is a cylindrical basket-like member having a closed lower surface and an open upper surface, and is attached to the center of the lower surface of the partition wall 22 so as to hang from the partition wall 22. A fine mesh filter 45 woven of synthetic fiber such as nylon is attached to the outer peripheral surface of the exhaust pipe 44. The inside of the exhaust pipe 44 communicates with the intake port 23. A cap-shaped hood 46 is attached to the lower end of the exhaust pipe 44.

The dust cup 42 is fixed to the casing 21 by the latch 47 in a state where the upper end opening is joined to the lower end opening of the separation chamber 41. A stabilizer 48 is provided at the bottom of the dust cup 42. Stabilizer 4
Reference numeral 8 is a radial cross-section of four blades having a cruciform horizontal cross section, the upper end of which extends close to the hood 46. Vertical ribs 49 are formed on the inner wall near the bottom surface of the dust cup 42.

The telescopic rod 50 is composed of an outer tube 51 provided on the dust collector 20 side and an inner tube 52 provided on the suction port body 10 side. The outer tube 51 and the inner tube 52 have a fitting relationship in which they slide in the axial direction but do not rotate about the axis. There is no problem even if the outer tube 51 and the inner tube 52 are in a fitting relationship in which they are rotated around the axis.

The outer tube 51 is fixedly provided on the back side of the casing 21 with its axis parallel to the casing 21. The fixing method may be integral molding or may be separately molded and fixed with screws or the like.
The outer tube 51 has a shape in which the upper end is closed and the lower end is open.

The inner pipe 52 is connected to the suction port body 10 via a universal joint 53. The first rotating portion 53a of the universal joint 53 is rotatable with respect to the suction port body 10 in the direction of arrow m in FIG.
The second rotating portion 52b above it is rotatable with respect to the suction port body 10 in the direction of arrow n in FIG. Therefore, the inner pipe 52 can be inclined in any direction with respect to the suction port body 10.

An annular seal member 54 is attached to the upper end of the inner pipe 52 inserted into the outer pipe 51. An annular seal member 55 is attached to the lower end of the outer pipe 51 that has received the inner pipe 52. The seal member 54 contacts the inner surface of the outer tube 51, and the seal member 55 contacts the outer surface of the inner tube 52, and plays the role of sliding guide and airtight maintenance. The seal members 54 and 55 also serve as a stopper for preventing the inner pipe 52 from coming off the outer pipe 51.

The telescopic rod 50 is provided with locking means 60 for maintaining the extended state or the contracted state. Inner tube 5
Engagement recesses 61a and 61b formed at two locations on the upper and lower outer surfaces of
And a lever-like latch 62 rotatably supported on the outer tube 51 in a vertical plane and urged by a spring (not shown) so that the tip of the lever-like latch contacts the outer surface of the inner tube 52.
Make up.

Reference numeral 70 denotes a telescopic hose which constitutes a suction passage between the suction port body 10 and the dust collector 20. Telescopic hose 7
0 has an upper end connected to the inflow port 43 and a lower end connected to the connection port 12.

The electric vacuum cleaner 1 is used as follows.
First, it is determined whether the telescopic rod 50 is used in the extended state or the contracted state. When the current state of the telescopic rod 50 is in the contracted state as shown in FIG.
And the dust collector 20 is pulled up.
After the latch 62 is disengaged from the engaging recess 61b, the latch 6
You can take your finger off 2. When the tip of the latch 62 is aligned with the engaging recess 61a, the latch 62 engages with the engaging recess 61a by the urging force of the spring and establishes the locked state. As a result, the telescopic rod 50 is fixed in the stretched state. When the telescopic rod 50 is used in a contracted state, it is not necessary to operate the locking means 60.

After determining the length of the telescopic rod 50 as described above, the power cord 33 is connected to a power outlet.
A predetermined push button 32 is pressed to start driving the electric blower 30. Then, the handle 25 is grasped and the dust collecting device 20 is tilted at an angle that facilitates cleaning, and the suction port body 10 is slid on the floor for cleaning.

When the electric blower 30 is driven, the suction port body 10
An airflow is generated from the suction port 11 through the expansion hose 70 and into the inflow port 43. As described above, the inflow port 43 is provided at a position and at an angle so as to make a tangent to the inner peripheral wall of the separation chamber 41, so that the airflow entering the separation chamber 41 is fast along the inner peripheral wall of the separation chamber 41. To turn. The turning direction is counterclockwise when viewed from above. During the turning, the dust in the air flow is pushed toward the inner peripheral wall of the separation chamber 41 by the centrifugal force.

The swirling airflow generated in the separation chamber 41 descends,
It passes through the outside of the hood 46 and advances downward in the dust cup 42. The dust is increasingly centrifuged as the airflow continues to swirl. The swirling airflow that descends starts to rise as it approaches the bottom surface of the dust cup 42.

During turning, when the airflow collides with the stabilizer 48, the airflow changes its direction and dust is further separated. Centrifugal force or stabilizer 48 or rib 4
Dust that collided with 9 and was separated from the airflow was dust cup 42.
It falls on the side near the side wall of the bottom and accumulates. The accumulated dust tries to swirl following the swirling airflow, but the rib 4
9 suppresses the movement.

The swirling airflow that has turned upward near the bottom surface of the dust cup 42 rises through the inside of the descending swirling airflow. The upward swirling airflow returns to the separation chamber 41 over the edge of the hood 46. The swirling air flow returned to the separation chamber 41 gradually approaches the exhaust pipe 44 while gradually reducing the swirling radius, and finally reaches the exhaust pipe 4.
4 is sucked inside. If dust remains in the air stream, it will be captured by the filter 45. The airflow that has escaped into the exhaust pipe 44 is sucked into the electric blower 30 through the intake port 23 and discharged through the exhaust port 24.

When discarding dust, the electric blower 30 is stopped, the latch 47 is released, and the dust cup 42 is removed. When the dust is thrown away, the dust cup 42 is again placed in the separation chamber 41.
To prepare for the next use.

When the electric vacuum cleaner 1 is housed after cleaning, if the telescopic rod 50 is extended and cleaned, the locking means 60 is operated to bring the telescopic rod 50 into a contracted state. This makes it easier to put in a storage place with a limited height.

4 to 6 show a second embodiment of the vacuum cleaner of the present invention. Since the electric vacuum cleaner 1a of the second embodiment is common in many parts to the electric vacuum cleaner 1 of the first embodiment, in order to avoid duplication of description, common components are assigned the same reference numerals as before. The description will be omitted. The same principle is applied to the description of the other embodiments, and the description of the components already described will be omitted unless there is a problem.

In the vacuum cleaner 1a, the internal space of the telescopic rod 50 is used as a suction passage. That is, the inner pipe 52 and the universal joint 53 are hollow to form a series of suction passages 71 including the outer pipe 51. Although the seal members 54 and 55 are provided between the outer surface of the outer pipe 51 and the outer surface of the inner pipe 52 as described above, in addition to this, between the inner pipe 52 and the universal joint 53, and between the universal joint 53. A seal member is appropriately provided between the first rotating portion 53a and the second rotating portion 52b to prevent air leakage. Further, the upper end of the outer pipe 51 is communicated with the inflow port 43.

When the electric blower 30 is driven, the suction port body 1
An airflow that flows from the suction port 11 of 0 through the suction passage 71 into the inflow port 43 is generated. The airflow entering the separation chamber 41 from the inflow port 43 swirls at high speed along the inner peripheral wall of the separation chamber 41 to drop dust in the dust cup 42 and then to the exhaust pipe 4.
4 is sucked into the electric blower 30 and discharged from the exhaust port 24.

FIG. 4 shows the state in which the telescopic rod 50 is contracted, FIG.
Is a state in which the telescopic rod 50 is extended, and any state is maintained by the locking means 60. Further, in any state, the internal space of the telescopic rod 50 has the suction passage 7
It functions as 1. In this configuration, since the suction passage is not provided outside the telescopic rod 50, but the inside of the telescopic rod 50 serves as the suction passage, the structure is simple and the appearance is smart.

7 and 8 show a third embodiment of the vacuum cleaner of the present invention. The electric vacuum cleaner 1b of the third embodiment is characterized in that the electric blower 30 is separated from the dust collector 20. That is, the main body 80 is provided separately from the dust collector 20,
The electric blower 30 was housed in this. The main body 80 is movably supported on the floor. A plurality of wheels 81 are attached to the main body 80 so that the main body 80 can move easily. The wheel 81 can be composed of two large wheels and one caster like a normal canister type vacuum cleaner. The wheels may be replaced with sleds.

In the dust collector 20, a connecting pipe 26 communicating with the inside of the exhaust pipe 44 is formed, and the connecting pipe 26 and the main body 80 are formed.
The connection tube 82 is connected by a suction hose 90. The connecting pipe 26 is formed so that its side surface has a V shape. This is to prevent the suction hose 90 from being excessively bent. A handle 27 is attached to the connecting pipe 26. The configuration from the suction port body 10 to the cyclone dust collecting section 40 is the same as in the second embodiment.

When the electric blower 30 is driven, the suction port body 1
An airflow that flows from the suction port 11 of 0 through the suction passage 71 into the inflow port 43 is generated. The airflow entering the separation chamber 41 from the inflow port 43 swirls at high speed along the inner peripheral wall of the separation chamber 41 to drop dust in the dust cup 42 and then to the exhaust pipe 4.
4 and is sucked into the electric blower 30 of the main body 80 through the suction hose 90. Then, it is discharged from an exhaust port (not shown) provided in the main body 80.

FIG. 7 shows the state in which the telescopic rod 50 is extended, and FIG. 8 shows the state in which the telescopic rod 50 is contracted, and both states are maintained by the locking means 60. With this configuration,
The heavy electric blower 30 has a main body 8 that moves on the floor.
Since the main body 80 and the dust collector 20 are connected to each other by the suction hose 90, the mass of the portion that is held and operated by hand is small, and cleaning can be performed lightly.

FIG. 9 shows a fourth embodiment of the vacuum cleaner of the present invention. The vacuum cleaner 1c of the fourth embodiment is characterized in that the upper end of the inner pipe 52 and the inflow port 43 are connected by a telescopic hose 71. That is, the elbow 56 facing downward from the inlet 43
Is projected, and the base of the telescopic hose 71 is fixed to this.
A connecting pipe 72 is provided at the tip of the expandable hose 71, and this is detachably fitted to the upper end of the inner pipe 52. This allows
A suction passage is formed from the inner pipe 52 to the inflow port 43.
When the telescopic rod 50 is contracted, the telescopic hose 71 is also contracted, and when the telescopic rod 50 is extended, the telescopic hose 71 is also expanded.

A window 57 extending in the axial direction of the outer tube 51 is provided on the side surface of the outer tube 51. Connecting pipe 72 to inner pipe 52
If the telescopic hose 71 is removed from the window 57 and pulled out from the window 57, the telescopic hose 71 can suck the dust in a place where it is difficult to clean with the suction port body 10, for example, on a table, a gap between furniture, a shovel of a shoji.

10 and 11 show a vacuum cleaner according to a fifth embodiment of the present invention. The vacuum cleaner 1d of the fifth embodiment is
The suction passage between the inner pipe 52 and the inflow port 43 is provided with a telescopic hose 7.
1 is the same as that of the fourth embodiment, but the structure of the telescopic rod is different. That is, the telescopic rod 50a does not have an outer tube. Instead, a slide guide 58 having a sectional shape as shown in FIG. 12 hangs down from the casing 21.

As shown in FIG. 12, the slide guide 58 and the inner pipe 52 (which can no longer be referred to as an "inner pipe because the outer pipe does not exist, but continue to use the conventional designation") are the dovetail grooves 59a and A ridge 59b having a T-shaped cross section that engages with this
, So that they slide together in the vertical direction. The telescopic rod 50a is also provided with locking means for maintaining the extended state or the contracted state. Locking means 6 of the first embodiment
The configuration may be the same as 0, but this is not shown.

When the telescopic rod 50a is contracted, the telescopic hose 7
1 also contracts, and if the telescopic rod 50a is extended, the telescopic hose 71
Also grows. If the connecting pipe 72 is removed from the inner pipe 52, the expandable hose 71 can remove dust from a place that is difficult to clean with the suction port body 10, for example, a place on a table, a gap between furniture, a shovel of a shoji, or the like.
You can suck it up with.

According to the configuration of the fifth embodiment, the structure of the telescopic rod 50a is simple and the casing 21 can be easily molded or assembled. Further, since the expansion and contraction hose 71 is exposed, it can be easily attached to and detached from the inner pipe 52, which is convenient.

In any of the first, second, third and fourth embodiments, the length of the telescopic rod 50 can be switched in two steps, but the engaging concave portion with which the latch 62 engages. It is possible to increase the number of expansion / contraction steps by increasing the number of points (this is the same in the fifth embodiment). If the outer tube 51 and the inner tube 52 are fixed with a screw or a tightening ring instead of the combination of the latch and the engaging recess, the length of the telescopic rod 50 can be adjusted steplessly.

Further, in any of the first, second, third, fourth and fifth embodiments, the dust collecting device 20 has a cyclone dust collecting portion 40. The cyclone type dust collecting part has the following effects.

In the cyclone dust collecting section 40, since the separated dust is deposited from the lower side, it is necessary to have a certain length in the vertical direction. On the other hand, the telescopic rod 50 occupies a certain height even in the contracted state, but the cyclone dust collecting unit 4
Since 0 also occupies a constant height in the space, arranging both in parallel improves space efficiency. The expansion / contraction stroke of the expansion / contraction rod 50 can also be secured.

When the internal space of the telescopic rod 50 is used as the suction passage 71 as in the second and third embodiments, and the upper end of the inner pipe 52 and the inlet 43 as in the fourth and fifth embodiments.
When the and are connected by the telescopic hose 71, since the inflow port 43 of the cyclone dust collecting portion 40 is located on the upper side, the parallel arrangement of the cyclone dust collecting portion 40 and the telescopic rod 50 is realized in a natural manner.

Further, the structure in which the outer tube 51 of the telescopic rod 50 is fixedly installed in the casing 21 of the dust collector 20 and the inner tube 52 is connected to the suction port body 10 brings about the following effects. That is, as compared with the configuration in which this is reversed, it is easier to bring the lower end of the dust collector 20 and the suction port body 10 closer to each other when the telescopic rod 50 is contracted (the outer tube 5 is closer to the suction port body 10).
If there is 1, the outer tube 51 can be attached to the dust collector 20). The strength increases when the outer tube 51 is provided on the dust collecting device 20 side.

Although the first to fifth embodiments have been described above, other various modifications can be made without departing from the spirit of the invention.

[0069]

The present invention has the following effects.

(1) A vacuum cleaner equipped with a suction port body, a dust collecting device, and an electric blower that forms an airflow entering from the suction port body and passing through the dust collecting device. A tube that constitutes one of the telescopic rods is fixedly installed, and the tube that constitutes the other of the telescopic rods is connected to the suction port body, so that the total height of the electric vacuum cleaner can be adjusted by adjusting the length of the telescopic rod. In addition, since the tube forming one of the expandable rods is fixed to the casing of the dust collector, the rigidity of the combination of the dust collector and the expandable rod is increased. Further, the height of the dust collecting device can be determined only by providing a locking means for maintaining a predetermined length of expansion and contraction on the elastic rod, and installation of the locking means itself is easy.

(2) Since the suction passage between the suction port body and the dust collecting device is constituted by the expansion and contraction hose, the suction passage can be simply constructed.

(3) Since the suction passage between the suction port body and the dust collector is formed by the internal space of the telescopic rod, the structure is simple and the appearance is smart.

(4) Since the handle is formed on the dust collector, the handle of the dust collector can be gripped for cleaning, and the operation is stable.

(5) Since the electric blower is housed in the casing of the dust collecting device, the dust collecting device and the electric blower are integrated into one casing, so that a compact structure can be obtained.

(6) Since the main body for accommodating the electric blower is provided and the main body and the dust collector are connected by the suction hose, the support of the heavy electric blower is left to the main body. You can hold it only and clean it lightly.

(7) Since the dust collecting device is provided with the cyclone dust collecting portion, the cyclone dust collecting portion and the telescopic rod are arranged in parallel to enhance space efficiency and secure the telescopic stroke of the telescopic rod. You can

[Brief description of drawings]

FIG. 1 is a front view of an electric vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line AA of FIG.

FIG. 3 is a vertical sectional view of the electric vacuum cleaner according to the first embodiment.

FIG. 4 is a vertical sectional view of an electric vacuum cleaner according to a second embodiment of the present invention.

FIG. 5 is a view of an electric vacuum cleaner according to a second embodiment.
Cross section similar to

FIG. 6 is a vertical sectional view of the electric vacuum cleaner according to the second embodiment, showing a state different from that of FIG.

FIG. 7 is a side view of an electric vacuum cleaner according to a third embodiment of the present invention, in which a dust collector portion is shown in a vertical sectional view.

FIG. 8 is a vertical cross-sectional view of a dust collecting device portion of the electric vacuum cleaner according to the third embodiment, showing a state different from FIG. 7.

FIG. 9 is a vertical sectional view of an electric vacuum cleaner according to a fourth embodiment of the present invention.

FIG. 10 is a vertical sectional view of an electric vacuum cleaner according to a fifth embodiment of the present invention.

11 is a cross-sectional view taken along the line BB of FIG.

FIG. 12 is a front view of a conventional vacuum cleaner.

[Explanation of symbols]

1, 1a, 1b vacuum cleaner 10 Suction mouth 20 Dust collector 21 casing 25, 27 handles 30 electric blower 40 Cyclone dust collector 50, 50a Telescopic rod 51 outer tube 52 Inner pipe 60 Locking means 70, 71 Telescopic hose 71 Suction passage 80 Main body 90 Suction hose

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Mikio Yagi             22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka             Inside the company (72) Inventor Yu Shindo             22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka             Inside the company F-term (reference) 3B057 BA22 BA26 BA27 FA13                 3B062 AH02

Claims (7)

[Claims] 1. An electric vacuum cleaner comprising: a suction port body, a dust collector, and an electric blower that forms an airflow entering from the suction port body and passing through the dust collector, wherein a casing of the dust collector is provided. An electric vacuum cleaner characterized in that a tube constituting one of the telescopic rods is fixed, and the tube constituting the other of the telescopic rods is connected to the suction port body. 2. The electric vacuum cleaner according to claim 1, wherein the suction passage between the suction port body and the dust collector is constituted by a telescopic hose. 3. The electric vacuum cleaner according to claim 1, wherein a suction passage between the suction port body and the dust collecting device is formed by an internal space of the telescopic rod. 4. The electric vacuum cleaner according to claim 1, wherein a handle is formed on the dust collector. 5. The electric vacuum cleaner according to claim 1, wherein the electric blower is housed in a casing of the dust collector. 6. The electric machine according to claim 1, further comprising a main body for accommodating the electric blower, wherein the main body and the dust collector are connected by a suction hose. Vacuum cleaner. 7. The vacuum cleaner according to claim 1, wherein the dust collector includes a cyclone dust collector.