TWI448267B - Vacuum cleaner - Google Patents

Description

Electric vacuum cleaner

The present invention relates to an electric vacuum cleaner, and is described in detail with respect to an electric vacuum cleaner including a cyclonic dust collector.

An electric vacuum cleaner including a cyclone dust collector includes a dust collector that is detachably housed in a recess formed in an upper portion of the cleaner body. On the upper surface of the cover of the dust collector, a long groove is formed in the front-rear direction, and the operation lever is movably fitted to the long groove (for example, see Patent Document 1).

Patent literature

Patent Document 1: JP-A-2007-89755 (page 5, page 7, and figure 1, figure 3)

In the above-described conventional electric vacuum cleaner, the dust collector can be detached from the cleaner body by moving the operating lever in the front direction which is the traveling direction of the cleaner body. On the other hand, in order to remove the dust collector from the cleaner body, it is necessary to lift the dust collector upward. That is, the direction in which the operating lever is moved when the dust collector is removed does not coincide with the direction in which the dust collector is removed from the cleaner body. Therefore, the operation of moving the operating lever and removing one of the dust collectors from the cleaner body cannot be smooth, and the operation thereof is troublesome.

The present invention has been made in order to solve the problems as described above, and an object of the invention is to provide an electric vacuum cleaner which can smoothly and easily perform a series of operations of moving a lever and removing one of the dust collectors from the cleaner body.

The electric vacuum cleaner of the present invention comprises: a hose body provided with a suction member for sucking dust and having flexibility; a hose body connecting portion for connecting the hose body; and a body having a hose body connecting portion; The electric fan is housed in the body; the dust collector is detachably mounted on the upper portion of the main body, and the dust sucked from the hose body via the hose body connecting portion is collected by driving the electric fan; the engaging means The means for engaging the dust collector with the body; and the means for releasing is for releasing the engagement of the dust collector of the borrowing means with the body; by directing the releasing means toward and removing the dust collector from the body The same direction is moved, and the engagement of the borrowing means on the body is released.

According to the present invention, the operation of moving the operating lever and detaching one of the dust collectors from the cleaner body can be smoothly and easily performed, and the workability of the dust collector can be improved.

1 is a perspective view showing an electric vacuum cleaner according to an embodiment of the present invention, FIG. 2 is a side view showing an electric vacuum cleaner according to an embodiment of the present invention, and FIG. 3 is an electric view showing an embodiment of the present invention from a rear obliquely upward side. Fig. 4 is a perspective view showing a state in which an electric vacuum cleaner according to an embodiment of the present invention is removed, and Fig. 5 is a top view showing an electric vacuum cleaner according to an embodiment of the present invention, and Fig. 6 is a view showing Fig. 5 AA cross-sectional view of the electric vacuum cleaner, and Fig. 7 is a BB cross-sectional view of the electric vacuum cleaner shown in Fig. 5.

In the respective drawings, the same reference numerals are given to the same or corresponding parts, and the description of the parts is omitted.

Hereinafter, the configuration of an electric vacuum cleaner according to an embodiment of the present invention will be described with reference to Figs. 1 to 7 .

As shown in Fig. 1, reference numeral 100 denotes an electric vacuum cleaner according to an embodiment of the present invention, comprising a main body 1, a hose body 6, and a dust collector 21 to be described later. As shown in FIGS. 2 to 4, the main body 1 is composed of an upper case 2, a lower case 3, a hose body connecting portion 4, an intake pipe 5, and an exhaust pipe 17 which are formed by resin molding.

As shown in Fig. 1, the hose body 6 has a flexible portion 6b having a flexible portion such as a bellows, and a grip portion 6c including an operation portion 6d for operating the input of the electric vacuum cleaner 100, and has a telescopic expansion. The rigid tube portion 6e of the structure and the suction member 6f for sucking dust are formed.

In the body 1, the hose body connecting portion 4 is provided on the front side which is the traveling direction of the electric vacuum cleaner 100. The hose body connecting portion 4 is formed by resin molding, and is mounted by a hose body connecting portion rear plate 7 attached to the front side of the upper box 2, and so as to straddle the lower box 3 and the hose body connecting portion rear plate 7. The front end of the hose body connecting portion 8 is formed at the foremost end. The hose body connection port 11 is provided in the hose body connecting portion front plate 8. As shown in Fig. 1, the hose body connecting portion front plate 8 is detachably connected to the insertion portion 6a provided at one end portion of the hose body 6 via the hose body connecting port 11. Further, as shown in FIGS. 2 and 4, the handle 14 for moving the main body is provided on the hose body connecting portion front plate 8. The handle 14 extends upward from both sides of the hose body connection port 11 and is at the upper end thereof A glyph shaped door shape is formed.

As shown in Fig. 4, the upper case 2 constituting the main body 1 is inclined upward from the rear side of the hose body connecting portion rear plate 7 attached to the front side (the side opposite to the traveling direction of the electric vacuum cleaner 100), along which the inclination is made. One side of the body has an intake pipe 5 on one side and an exhaust pipe 17 on the other side. One end of the intake pipe 5 is connected to the hose body connecting portion 4 by the inflow port 12. In the body 1, the hose body connecting portion 4 communicates with the air path of the intake pipe 5. Further, the upper case 2 has an intake unit 10 on the rear side thereof. The intake port 10a of the intake unit 10 is detachably connected to the exhaust port 23a provided in the exhaust unit 23 of the dust collector 21.

In the main body 1, as shown in Fig. 6, an electric fan 15 is disposed. The electric fan 15 is housed in the electric fan housing chamber 20, and generates a suction wind caused by a negative pressure for sucking dust. Further, in the main body 1, as shown in Fig. 7, the control circuit board 16, the electric wire reel 18, and the like are housed. The control circuit board 16 controls the driving of the electric fan 15 or the like in accordance with an input from the operation unit 6d. A power cord for supplying electric power to the electric fan 15 or the like is wound around the electric wire reel 18. A power cord plug 19 for connecting to a power source is provided at an end of the power cord. The plug housing portion 9 that houses the power cord plug 19 is disposed on the rear side of the upper box 2. It is avoided that a collision or impact acts on the power cord plug 19 when the electric vacuum cleaner 100 is not in use.

The dust collector 21 is detachably mounted on the upper portion of the body 1. Specifically, the dust collector 21 is attached to the main body 1 at a position sandwiched between the intake pipe 5 of the upper tank 2 and the exhaust pipe 17 shown in Fig. 4 . When the dust collector 21 is attached to the main body 1, it is disposed along the inclination of the upper casing 2 like the intake pipe 5 and the exhaust pipe 17. Further, when the dust collector 21 is attached to the main body 1, the lower side plate 25 faces the side plate 4a of the hose body connecting portion rear plate 7 constituting the hose body connecting portion 4 via a predetermined gap W as shown in Fig. 2; . In the side plate 4a, the protruding portion 4b that protrudes toward the dust collector 21 side is formed on the lower side of the central portion in the width direction. When the dust collector 21 is attached to the main body 1, the protruding portion 4b abuts against the lower side plate 25 of the dust collector 21. In other words, when the dust collector 21 is attached to the main body 1 by the protruding portion 4b and the lower side plate 25, the gap W is secured between the upper side of the central portion of the side plate 4a and the upper side of the central portion of the lower side plate 25.

As shown in Fig. 3, the dust collector 21 has a suction port 22 that protrudes toward the intake pipe 5 side. The suction port 22 of the dust collector 21 is detachably connected to the outflow port 13 provided at the other end side of the intake pipe 5. The suction port 22 is connected to the outflow port 13 and the intake pipe 5 communicates with the air path of the dust collector 21. Further, as described above, the dust collector 21 has an exhaust port 23a of the exhaust portion 23 on the upper side (rear side). The exhaust port 23a of the exhaust unit 23 is connected to the intake port 10a of the intake unit 10 provided in the upper case 2, and the dust collector 21 communicates with the air path of the body 1. On the downstream side of the air path (suction port 10a), the electric fan housing chamber 20 and the electric fan 15 described above are included. When the electric fan 15 is driven to be a negative pressure, the intake air generated by the negative pressure is discharged from the electric fan 15. The air discharged from the electric fan 15 passes through an air passage (not shown) in the main body 1, and finally exhausts from the exhaust pipe 17 to the outside of the main body 1.

Further, the dust collector 21 includes a cyclone dust collecting portion. The cyclone dust collecting portion of the dust collector 21 has a first swirling chamber 21a (see Fig. 7) and a second swirling chamber 21b (see Fig. 6). The first swirling chamber 21a swirls the dust-containing air taken in from the suction port 22, and separates the large dust from the dust-containing air by the centrifugal force obtained by the swirling. The fine dust that has not been separated in the first swirl chamber 21a is sent to the second swirl chamber 21b at the same time as the air. The second swirling chamber 21b swirls the air containing the fine dust separated from the large dust in the first swirling chamber 21a, and separates the fine dust from the air by the centrifugal force obtained by the swirling.

The centrifugal force that swirls the dust-containing air in the cyclone dust collecting portion is used to supply the suction air caused by the negative pressure generated by the electric fan 15 described above. The dust of a size separated from the air is collected to the dust collecting chamber 21c of the dust collector 21. The dust collecting chamber 21c is provided near the hose body connecting portion 4 (front side) on the lower side of the dust collector 21 attached to the inclination of the upper tank 2.

Further, the releasing means 31 and the engaging means 51 (not shown in FIGS. 1 to 7) are provided in the dust collector 21. The engaging means 51 engages the dust collector 21 with the main body 1 to fix the dust collector 21 to the main body 1. Hereinafter, the state in which the dust collector 21 is engaged with the main body 1 by the engagement means 51 is also referred to as an engagement state. The releasing means 31 is for releasing the engagement of the dust collector 21 of the borrowing and engaging means 51 with the main body 1. When the engagement state is released by the release means 31, the dust collector 21 can be removed from the main body 1.

Hereinafter, the engagement structure of the engagement means 51 of the main body 1 and the dust collector 21 and the release operation of the engagement state by the release means 31 will be described using Figs. 3, 5, and 8 to 10 . Further, the state in which the dust collector 21 is detached from the main body 1 will be described using Figs. 2, 11 and 12.

Fig. 8 to Fig. 10 are sectional views taken along line C-C of the electric vacuum cleaner shown in Fig. 5. Fig. 8 is a view showing a releasing means 31 and a peripheral portion of the engaging means 51 when the dust collector 21 is engaged with the main body 1. The ninth figure shows the peripheral portion of the releasing means 31 and the engaging means 51 when the operating lever 33 of the releasing means 31 starts moving in the releasing direction from the state of Fig. 8. Fig. 10 shows the peripheral portion of the releasing means 31 and the engaging means 51 when the operating lever 33 of the releasing means 31 is finished moving. Fig. 11 is a side view showing a state in which the electric vacuum cleaner according to the embodiment of the present invention is moved toward the detaching direction, and Fig. 12 is a side view showing a state in which the electric vacuum cleaner according to the embodiment of the present invention is further moved in the detaching direction. view.

As shown in the figure, the releasing means 31 and the engaging means 51 are provided in the vicinity of the exhaust portion 23 at the center of the upper side plate 24 of the dust collector 21. When the dust removing device 21 is attached to the main body 1 , the releasing means 31 and the engaging means 51 are disposed on the upper end portion (rear side) of the dust collector 21 together with the upper side plate 24 .

The release means 31 includes a cover 41, a part of the operation lever 33 housed in the cover 41, and a release means spring 56. The cover 41 is fixed to a cylindrical screw mounting portion 43 provided on the upper side plate 24 of the dust collector 21 by a screw 44. The release means spring 56 is constituted by, for example, a coil-shaped compression spring, and is housed in a spring housing portion 32 that is formed integrally with the operation lever 33.

The swing portion 34 is integrally formed on the operating lever 33. The swinging portion 34 is provided to extend downward from the lower side of the spring accommodating portion 32, and is formed on the rear side in the obliquely upward direction from the upper side plate 24 side of the dust collector 21 toward the operating lever 33 side. Inclined surface. Further, the operation lever 33 projects rearward from the opening 42 formed in the cover 41, and has a finger portion 33a on the lower surface side thereof. The release means spring 56 is disposed between the downwardly facing surface (top surface) of the cover 41 and the upward facing surface of the spring accommodating portion 32 located below the cover 41 in the compressed state, and the spring accommodating portion 32 faces upward. The bias is facing obliquely downward. In other words, the operation lever 33 integrally formed with the spring housing portion 32 is biased obliquely downward along the side surface (the rear surface) of the upper side plate 24 by the release means spring 56. The direction (bias direction) X in which the release lever spring 56 biases the operation lever 33 is a direction (removal direction) Y in which the dust collector 21 is moved when the dust collector 21 is detached from the main body 1 (refer to FIG. 11). )Opposite Direction. The bias direction X coincides with the direction (mounting direction) in which the dust collector 21 is moved when the dust collector 21 is attached to the body 1.

The engaging means 51 includes a swinged portion 53, a hook portion 54, and an engaging means spring 57. The swinging portion 53 is provided in the cover 41 in the engaging means rotating shaft 55. The engagement means shaft 55 has its long side disposed in the width direction of the cover 41, and is rotatably supported by a shaft attachment portion 52 (see FIG. 3) provided on both side faces of the cover 41. In other words, the swing portion 53 is rotatably attached to the cover 41 via the engagement means shaft 55 and the shaft attachment portion 52.

The oscillating portion 53 is formed on the front side thereof to form an inclined surface in the obliquely downward direction. The inclined surface formed on the swing portion 53 and the inclined surface formed in the oblique direction formed by the swing portion 34 of the releasing means 31 are slidably coupled. The inclined surface of the swinging portion 53 is placed in contact with the inclined surface of the swing portion 34 in a plane contact when the swing portion 34 is disposed at a predetermined lower position. When the swinging portion 34 moves upward (slanted) from the state, the inclined surface of the swinging portion 53 is pressed against the inclined surface of the swinging portion 34, and the swinging portion 53 is rotated (displaced) about the engaging means shaft 55. Its upper end is moved to the rear side.

The hook portion 54 is formed integrally with the swing portion 53 and is disposed below the swing portion 53. The hook portion 54 is interlocked with the swing portion 53 and is rotated (displaced) by the engagement means shaft 55 as a fulcrum. In the hook portion 54, the hole is provided on the upper side. The screw mounting portion 43 is provided to penetrate the hole. The engagement means spring 57 is constituted by a coil-shaped compression spring and is disposed on the outer circumference of the screw attachment portion 43. The engaging means spring 57 always biases the peripheral portion of the hole formed by the hook portion 54 toward the rear side. The protruding piece 2a projecting toward the front side is provided in the upper case 2, and the hook portion 54 biased by the engaging means spring 57 is caught on the lower surface side of the protruding piece 2a, and the dust collector 21 is engaged with the body 1. Further, the protruding piece 2a is constituted by a fixed body provided in the upper case 2.

In a state in which the dust collector 21 is normally attached to the main body 1 (engaged state), as shown in FIG. 8, the operating lever 33 and the swinging portion 34 are biased toward the biasing direction X by the biasing force of the releasing means spring 56. The swing portion 34 is disposed at a predetermined lower position. In other words, the inclined surface of the swing portion 34 faces the inclined surface of the swing portion 53 and faces the surface. Further, the hook portion 54 is biased by the engaging means spring 57, and the hook portion 54 is engaged with the protruding piece 2a. From this state, as shown in Fig. 9, the operator (not shown) fastens the finger to the finger portion 33a of the operating lever 33, and is biased against the biasing force of the releasing means spring 56 (is disassembled from the dust collector 21). When the operation lever 33 is pulled up above in the same direction in the downward direction Y, the swing portion 34 integrally formed with the operation lever 33 is moved upward. When the swing portion 34 moves upward, the lower end portion of the swing portion 34 (the portion that protrudes most toward the cover 41 side in the inclined surface) biases the swing portion 53 toward the rear side, and the swing portion 53 is engaged by the engagement means shaft 55. The fulcrum moves toward the side of the cover 41.

The hook portion 54 of the engaging means 51 is moved toward the cover 41 by the swinging portion 53, and resists the biasing force of the engaging means spring 57, with the engaging means shaft 55 as a fulcrum, and is directed toward the upper side plate 24, and will be described in detail. The movement in the direction of engagement with the protruding piece 2a of the upper case 2 is released. In this state, when the operation lever 33 of the release means 31 is gradually pulled upward, as shown in Fig. 10, the lower end portion of the inclined surface of the swing portion 34 causes the swing portion 53 of the engagement means 51 to move toward the cover 41 side. The hook portion 54 of the engaging means 51 is completely released from engagement with the protruding piece 2a of the upper case 2.

Then, when the operation lever 33 of the release means 31 is further pulled upward from the position, the dust collector 21 is moved to rotate the lower side thereof as a fulcrum, and the upper side of the dust collector 21 is separated from the upper case 2 and raised. (Refer to Figure 11 and Figure 12). Further, in order to perform such an operation, the predetermined gap W as described above (refer to the last paragraph of page 7) is required. In other words, since the gap W is formed, when the dust collector 21 is detached from the main body 1, the engagement of the dust collector 21 is released, and the lower side of the dust collector 21 is moved, and the side plate 4a of the rear plate 7 of the hose body connecting portion is connected. Contact (refer to Figure 11). Then, when the operation lever 33 is pulled upward in a state where the lower end portion of the dust collector 21 is in contact with the side plate 4a, the contact portion becomes a fulcrum, and the dust collector 21 rotates. Thus, the dust collector 21 is stabilized, and the dust collector 21 can be easily removed from the body 1.

Further, the body 1 from which the dust collector 21 has been removed can be easily moved by holding the handle 14. The handle 14 is provided on the hose body connecting portion front plate 8 constituting the hose body connecting portion 4 of the body 1 as described above. Therefore, the movement of the body 1 is completely unaffected by the installation and non-installation state of the dust collector 21.

As described above, in the embodiment of the present invention, the operation of the dust lever 21 and the main body 1 can be released by moving the operation lever 33 of the release means 31 in the same direction as the removal direction Y of the dust collector 21. In a state, the dust collector 21 is shifted to a state where it can be detached from the main body 1. Further, when the operating lever 33 is further moved in the same direction from this state, the dust collector 21 can be detached from the main body 1. Therefore, the operation of moving the operation lever 33 to the detachment of one of the dust collectors 21 from the main body 1 can be performed smoothly, and the operability at the time of removing the dust collector 21 can be improved.

Further, the operation of the operating lever 33 can be performed with a finger, and since the dust collector 21 can be detached from the main body 1 while still performing this operation, the series of operations can be easily performed with one hand.

[Industrial Applicability]

The electric vacuum cleaner of the present invention can be applied to a cyclone dust collector and is configured to be detachable from the main body.

1. . . Ontology

2. . . Upper box

2a. . . Tab

3. . . Lower box

4. . . Hose body connection

4a. . . Side panel

5. . . Suction pipe

6. . . Hose body

6a. . . Insertion

6b. . . Soft pipe department

6c. . . Grip

6d. . . Operation department

6e. . . Hard tube

6f. . . Inhalation

7. . . Hose body connection rear plate

8. . . Hose body connection front plate

9. . . Plug housing

10. . . Suction department

10a. . . Suction port

11. . . Hose body connection

12. . . Inflow

13. . . Outflow

14. . . handle

15. . . Electric fan

16. . . Control board

17. . . exhaust pipe

18. . . Wire reel

19. . . Power cord plug

20. . . Electric fan storage room

twenty one. . . Dust collector

21a. . . First roundabout

21b. . . Second whirlpool

21c. . . Dust chamber

twenty two. . . suction point

twenty three. . . Exhaust department

23a. . . exhaust vent

twenty four. . . Upper side panel

25. . . Lower side panel

31. . . Lifting means

32. . . Spring housing

33. . . Joystick

33a. . . Buckle finger

34. . . Swing part

41. . . cover

42. . . Opening

43. . . Screw mounting

44. . . Screw

51. . . Knitting means

52. . . Shaft mounting

53. . . Swinged part

54. . . Hook section

55. . . Knitting means shaft

56. . . Lifting means spring

57. . . Engagement means spring

100. . . Electric vacuum cleaner

W. . . gap

X. . . Bias direction

Y. . . Remove direction

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

Fig. 2 is a side view showing an electric vacuum cleaner according to an embodiment of the present invention.

Fig. 3 is a perspective view showing the electric vacuum cleaner according to the embodiment of the present invention as seen obliquely from the rear.

Fig. 4 is a perspective view showing a state in which an electric vacuum cleaner according to an embodiment of the present invention is removed.

Fig. 5 is a top view showing an electric vacuum cleaner according to an embodiment of the present invention.

Fig. 6 is a cross-sectional view taken along line A-A of the electric vacuum cleaner shown in Fig. 5.

Fig. 7 is a cross-sectional view taken along line B-B of the electric vacuum cleaner shown in Fig. 5.

Fig. 8 is a C-C sectional view of the electric vacuum cleaner shown in Fig. 5.

Fig. 9 is a C-C sectional view of the electric vacuum cleaner shown in Fig. 5.

Figure 10 is a cross-sectional view taken along line C-C of the electric vacuum cleaner shown in Figure 5.

Fig. 11 is a side view showing a state in which the electric vacuum cleaner according to the embodiment of the present invention starts to move in the removal direction.

Fig. 12 is a side view showing a state in which the electric vacuum cleaner according to the embodiment of the present invention is further moved in the removal direction.

1. . . Ontology

6. . . Hose body

6a. . . Insertion

6b. . . Soft pipe department

6c. . . Grip

6d. . . Operation department

6e. . . Hard tube

6f. . . Inhalation

11. . . Hose body connection

twenty one. . . Dust collector

100. . . Electric vacuum cleaner

Claims (8)

An electric vacuum cleaner, comprising: a hose body provided with a suction member for sucking dust and having flexibility; a hose body connecting portion for connecting the hose body; and a body having the hose body a connecting portion; the electric fan is housed in the body; the dust collector is detachably mounted on an upper portion of the body, and the electric fan is driven to collect the connecting portion from the hose body via the hose body The dust is sucked; the engaging means is configured to engage the dust collector with the main body; and the releasing means is for releasing the engagement of the dust collector by the engaging means; The means moves in the first direction, so that the engagement of the dust collector by the engagement means is released, and the releasing means is further moved toward the first direction, so that the dust collector is detached from the body . The electric vacuum cleaner of claim 1, wherein the upper part of the main body is connected to the front side of the hose body, and is connected to the rear and inclined upward; the dust collector is attached to the main body. Along the inclined configuration formed on the upper portion of the body. The electric vacuum cleaner of claim 2, wherein the dust collector is disposed at a position below the inclination of the dust collecting chamber that houses the collected dust. Electrical vacuuming as claimed in any of claims 1 to 3 The dust collector has a predetermined gap between the connection portion with the hose body and is disposed on the body. An electric vacuum cleaner according to any one of claims 1 to 3, wherein the releasing means is provided to the dust collector. An electric vacuum cleaner according to any one of claims 1 to 3, wherein the releasing means is biased in a direction opposite to a direction in which the dust collector is removed. An electric vacuum cleaner according to any one of claims 1 to 3, wherein the releasing means comprises: an operating lever disposed on one end side of the dust collector; and a biasing means for orienting the operating lever The direction of the dust collector is reversed in a direction opposite to the direction of the dust collector; the engaging means includes a hook portion, and the hook portion is configured to be rotatable with a rotation axis of the engaging means disposed on the dust collector as a fulcrum; When the operating lever is moved in the upward direction against the biasing means, the hook portion is rotated in a direction to release the engagement with the main body to release the engagement; and when the operating lever is moved upward, the The dust collector rotates toward the moving direction of the operating lever with the contact position of the other end side of the dust collector and the hose body connecting portion as a fulcrum, and the dust collector is detached from the main body. An electric vacuum cleaner according to any one of claims 1 to 3, wherein the handle for moving the body is disposed on the body.