JP2010063476A - Electric vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric vacuum cleaner wherein the mounting property of a dust collecting case section having a built-in filter for dust collection has been improved. <P>SOLUTION: This electric vacuum cleaner includes an electric vacuum cleaner body having a built-in fan motor which generates an air stream for dust collection, and the dust collecting case section which is freely detachably combined with the body, and is equipped with a dust collecting filter. The dust collecting case section has a locking structure which serves as a stopper for the falling off from the set position. The locking structure includes a handle by which the dust collecting case section can be lifted, and a lever which is urged in a manner to project from the handle to a to-be-engaged section on the electric vacuum cleaner body. The electric vacuum cleaner is constituted in such a manner that the lever is engaged with the to-be-engaged section of the electric vacuum cleaner body to turn the dust collecting case section locked under the state that the dust collecting case section is housed in a predetermined position of the electric vacuum cleaner body, and the lever is returned from the projected state to the non-projected state while interlocking with the handle, to turn the dust collecting case section unlocked under the state that the handle is placed under a serving condition. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a vacuum cleaner, and more particularly, to a lock structure that affects the detachability of a dust collecting portion.

As a means for detachably fixing the dust collecting part to the vacuum cleaner body, a lever is provided in a reciprocating manner so as to straddle between the vacuum cleaner body and the dust collecting case incorporating the dust collecting part. There is known a structure in which the fixed relationship between the vacuum cleaner main body and the dust collecting case can be released by sliding (see, for example, Patent Document 1).

JP 58-86127 A (Claim 1, FIG. 2)

However, in the conventional configuration as described above, the position of the handle for lifting the dust collecting case and the lever are greatly separated, and when attaching or detaching the dust collecting case, hold the handle with one hand and the other hand. If the lever was not released, it could not be attached or detached, so it was not easy to use.

The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide an easy-to-use vacuum cleaner by improving the detachability of the dust collecting case.

In order to achieve the above object, a vacuum cleaner according to the present invention includes a vacuum cleaner body including a fan motor that generates a dust collection air flow, and a dust collection filter that is detachably coupled to the body. A dust collection case portion, and the dust collection case portion has a lock structure with the main body of the vacuum cleaner, the lock structure having a handle that can lift the dust collection case portion, and the handle A lever that is biased so as to protrude from the engaged portion of the vacuum cleaner main body, and the dust collecting case portion is stored in a predetermined position of the vacuum cleaner main body, the lever is a vacuum cleaner. When the dust collecting case is locked by engaging with the engaged part of the main body and the handle is in use, the lever is returned from the projecting state to the non-projecting state in conjunction with the handle. Of the case Tsu is characterized in that the click state is released.

As described above, according to the present invention, the dust collection case portion has a handle that can lift the dust collection case, and the dust collection case has a lock structure with the main body of the vacuum cleaner. Since it is released by setting the handle to the use state, the user-friendliness is improved.

In addition, when the position where the lever moves is in the handle leg when the handle is in the retracted state, the dust collecting portion can be reduced in size.

Further, when the lever biasing means is provided in the handle leg portion, the dust collecting portion can be reduced in size.

Embodiment 1 FIG.
1-10 is a figure which shows the vacuum cleaner which is Embodiment 1 of this invention, FIG. 1 is an external view of the use condition of a vacuum cleaner, FIG. 2 is center sectional drawing of a vacuum cleaner main body, FIG. 3 is a view of the dust collecting case portion as viewed obliquely from the front, FIG. 4 is a plan view and a sectional view of the lever portion of the dust collecting case portion, and a sectional view taken along line XX in FIG. It is. FIGS. 5 to 7 are operation relation diagrams of the handle and the lever, and FIGS. 8 to 10 are cross-sectional views when the dust collecting case portion is set in the dust collecting chamber of the electric vacuum cleaner body.

In FIG. 1, 1 is a vacuum cleaner body, 2 is a flexible hose having an insertion part 2A at one end and a hand part 2B at the other end, and 4 is detachably connected to the hand part 3 of this hose. An extension pipe 5 is a suction tool that is detachably attached to the tip of the extension pipe. In the normal use state of the vacuum cleaner, as shown in FIG. 1, the insertion portion 2A of the hose 2 is inserted into the main body 1, the extension pipe 4 is connected to the tip of the hose handle 2B, and the tip of the extension pipe is further connected. The suction tool 5 is connected, and the dust on the floor is sucked from the suction tool 5 and collected by the filter part (filter body 16 described later) in the cleaner body 1.

As shown in FIG. 2, the electric vacuum cleaner body 1 includes an upper case 6 having a large upper surface, a lower case 7, and a fan motor (also referred to as a blower motor) 8 installed between the upper case 6 and the lower case 7. And a cord winding device 9 that is supported by a vertical rotating shaft 9A and rotates in a horizontal plane around the rotating shaft.

A dust collection chamber 10 in which a dust collection case section 12 (to be described later) is housed is formed in the front part of the upper case 6, and the downstream side of the dust collection air flow (hereinafter referred to as “dust collection air flow”). A storage chamber 3 for the fan motor 8 is defined on the downstream side. That is, the storage chamber is a sealed space in which the fan motor 8 is stored between the upper case 6 and the lower case 7.

The suction port 8 </ b> A of the fan motor 8 opens at a downstream side position of the dust collection air flow in the dust collection chamber 10. Reference numeral 17 denotes a partition plate that partitions the dust collection chamber 10 and the storage chamber 3, and has a large number of lattice windows (through holes) so that dust collection air flows. In addition, HL is a horizontal line which shows the center position of the suction inlet 8A of the fan motor 8 for reference.

11 is a circular upper cover having a circular shape covering the upper part of the opening formed on the upper surface of the upper case 6, and is rotatable about a shaft 11 </ b> A supported by the upper case 6. When the upper lid is opened as shown in FIG. 2, the entire upper surface of the dust collecting chamber 10 is greatly opened. Reference numeral 12 denotes a dust collection case portion (also referred to as a dust collection box) which is inserted into the dust collection chamber 10 from the open top surface thereof and can be taken out upward. The outer wall surface is firmly fitted at a predetermined position on the inner side of the door, and is easily fixed so as not to move back and forth and left and right. The dust collection case 12 is configured to be reliably prevented from moving upward by a lock mechanism including a lever 13 and an engagement hole 21B described later.

6A is an upper surface wall of the upper case 6, which is integrally formed of plastic, and covers the entire upper surface so that the fan motor 8 is not exposed even when the upper lid 11 is opened. It has become.

Reference numeral 21 denotes a front case which is closely attached so as to cover the front opening of the upper wall of the upper case 6 and is integrally formed of plastic as a whole, and the front half of the fan motor 8 even when the upper lid 11 is opened. The entire upper part is covered so as not to be exposed. The partition plate 17 formed in a disc shape is fitted into the opening formed in the central portion of the front case. 21A is a guide wall surface (hereinafter referred to as “guide surface”) formed on the upper surface of the front case 21 so as to have a downward slope as it goes forward. Reference numeral 21B denotes an engagement hole formed at one place about 10 to 20 mm below the lower end edge of the guide surface 21A in the front case.

The dust collecting case 12 is provided with a thin bar-shaped lever 13 slidable in the front-rear direction (left-right direction in FIG. 2) on its upper outer wall surface 12A, and biasing means such as a compressed coil spring 14 is always biased in the protruding direction (left side direction in FIG. 2).

The dust collecting case portion 12 has a hollow box shape as a whole, and a filter body for filtering dust sucked from the hose 2 through a suction port 28 formed on the front surface of the main body 1 of the vacuum cleaner. 16 is installed. The filter body 16 is installed so as to block the entire front side of the lattice window (through hole) of the partition plate 17. A handle 15 for attaching / detaching the dust collecting case portion is rotatably attached to the dust collecting case portion 12. The handle 15 is in a vertical state when in use, and is rotatable so as to fall horizontally into a stored state when not in use (details will be described later). Reference numeral 12A denotes an inlet formed in the front wall of the dust collecting case portion 12 corresponding to the suction port 28. When the dust collecting case portion 12 is set at a predetermined position in the dust collecting chamber 10, the suction port A series of dust-absorbing air passages that completely face 28 and communicate with the hose 2 are formed.

In the storage chamber 3 of the vacuum cleaner main body 1, an exhaust air passage 3 </ b> A for discharging air sucked by the fan motor 8 is formed at a position downstream of the fan motor 8. Reference numeral 18 denotes an exhaust port serving as an end portion of the exhaust air passage, and is formed between the upper case 6 and the lower case 7 and has a fine mesh as a whole so that a user's fingers and foreign objects do not intrude by mistake. It is covered with a breathable guard.

  Reference numeral 29 denotes a rotating plate attached to the lower surface of the lower case 7 serving as a bottom plate of the vacuum cleaner body 1, and is rotatable in a horizontal plane around a support shaft 31 that is vertically installed so as to penetrate the lower case 7. (There are no restrictions on the direction of rotation or the number of rotations). Reference numeral 30 denotes five traveling wheels attached to the lower surface of the rotating plate 29 at equal intervals in the circumferential direction. These wheels themselves can be freely rotated 360 degrees in a horizontal plane so that the cleaner body 1 can easily move, and can freely rotate.

The structure of the handle 15 will be described. 4 shows a plan view and a cross-sectional view of the handle 15, FIG. 5 shows the handle 15 when not in use, FIG. 6 shows a state before the handle 15 is raised and used, and FIG. A state in which the handle 15 is used while being vertically raised is shown.

When the handle 15 is not in use and tilted sideways, as shown in FIG. 4B, the handle 15 is a plane composed of a front leg 15A, a rear leg 15B, and a grip 15C connecting the two. The shape is substantially U-shaped. In FIG. 4B, CL is a straight line passing through a fulcrum 32 that supports the handle 15 (at the intersection of two orthogonal straight lines XA, YA in FIGS. 5-7), and the pair of legs 15A, 15B are On this straight line, it is rotatably supported by the upper outer wall surface 12A of the dust collecting case portion 12. Therefore, as shown in FIGS. 5-7, the handle | steering-wheel 15 can be rotated centering | focusing on the fulcrum 32 on the straight line CL. In addition, the leg portion 15A of the handle 15 has an inverted U-shape whose longitudinal section is opened downward when not in use, as shown in FIG. 4B. A compression coil spring 14 and a push rod 23 described later are accommodated in the space. That is, between the handle 15 and the upper outer wall surface 12A of the dust collecting case portion 12, a compression coil spring 14, a push bar 23, and the like are accommodated as shown in FIG.

5 to 7, reference numeral 13 denotes the lever described above. In a state where the rear end portion (the right end portion in FIGS. 5 to 7) is inserted into the engagement hole 21B formed in the front case 21 and engaged, Due to the engaging structure, the dust collecting case 12 is fixed to the front case 21 so as not to come off. The lever 13 has a compression coil spring 14 as an elastic urging means interposed between the lever 13 and a stopper 33 formed in a protruding shape on the upper outer wall surface 12A of the dust collecting case portion 12 in a compressed state. 19 is a pullback boss provided so as to penetrate the lever 13, 20 is a pullback portion formed on one leg 15A of the handle 15, and 23 is a push rod for receiving the force of the compression coil spring 14, which is integrated with the lever 13. Or it is a separate object fixed to the lever.

As shown in FIGS. 5 to 7, the handle 15 can be freely rotated around a fulcrum 32 from a vertical (use state) to a horizontal (non-use, storage) position.

Next, the operation of the first embodiment will be described.
An air flow is generated by a fan motor 8 built in the vacuum cleaner main body 1, dust is sucked in from the suction tool 5, dust is filtered by the filter body 16, and dust is collected in the dust collecting case portion 12. Thereafter, the air sucked by the fan motor 8 passes through the fan motor 8 and is discharged from the exhaust port 18 to the outside of the electric vacuum cleaner main body 1.

Then, after the cleaning is completed, the upper lid 11 is opened, the handle 15 is rotated to the use state, the dust collecting case portion 12 is taken out from the dust collecting chamber 10, and the accumulated dust is discarded. Is the basic operation.

When the user grasps the grip portion 15C of the handle 15 with his fingertip and causes it to rotate to the use state, as shown in FIG. 5, the pull-back boss 19 disposed on the lever 13 and the pull-back portion 20 of the handle 15 In a state where the pull-back boss 19 and the pull-back portion 20 start to be engaged as shown in FIG. 6, and the handle 15 is almost vertical as shown in FIG. The lever 13 is in a state where the pull-back boss 19 is pushed by the pull-back portion 20. That is, the lever 13 is pulled back in the retreating direction (rightward direction in FIGS. 5 to 7) opposite to the original biasing direction (projection direction by the compression coil spring 14), and therefore from the engagement hole 21B formed in the front case 21. The tip portion is removed, and the engagement state with the engagement hole 21B is released. As a result, the dust collecting case 12 is unlocked from the front case 21 fixed to the main body 1 of the vacuum cleaner.

Therefore, if the user lifts the grip portion 15 </ b> C as it is with the fingertip from this state, the entire dust collection case portion 12 can be pulled out from the dust collection chamber 10. Therefore, the dust collecting case part 12 can be brought to an appropriate place and the dust inside the dust collecting case part 12 can be discarded.

When the dust collecting part 12 is set again in the dust collecting chamber 10 of the vacuum cleaner body 1, first, the tip of the lever 13 of the dust collecting case part 12 is the upper part of the front case 21 of the vacuum cleaner body 1 as shown in FIG. 6. Since it abuts against the outer wall surface 12A, the lever 13 moves in the direction opposite to the urging direction (push-out direction) by the compression coil spring 14 and gets over it. The dust collecting case 12 and the front case 21 of the vacuum cleaner main body 1 are locked by the force of the compression coil spring 14.

  As described above, according to the first embodiment, the locked state between the dust collecting case 12 and the front case 21 of the vacuum cleaner main body 1 can be released by the operation of raising the handle 15 with one hand. The dust collection case 12 can be removed easily with one hand.

Embodiment 2. FIG.
11 to 13 show the second embodiment of the present invention, FIG. 11 is an enlarged sectional view of the upper part of the dust collecting case, FIG. 12 is an enlarged sectional view of the upper part of the dust collecting case, and FIG. It is an upper part expanded sectional view of the dust collection case part which shows the state raised.

The second embodiment is characterized in that the urging means 14 is installed in the leg portion 15 </ b> A of the handle 15. Therefore, when the handle 15 is in the retracted state, the urging means 14 pushes the lateral wall 25 of the urging receiving portion 24 of the lever 13 via the push rod 23 and is urged in the protruding direction. The direction of the urging force of the urging means 14 sequentially moves with the slope 26 and the upper wall 27 of the urging receiving portion 24 from the angle in the middle of the movement, and does not work in the direction in which the lever 13 protrudes to the front case 21 side. In the second embodiment, the push bar 23 is separate from the lever 13 and is different from the first embodiment in that it is not fixed to the lever 13.

For this reason, in the second embodiment, the positional stability of the handle 15 when the handle 15 is put into use is better than that in the first embodiment. In the first embodiment, the lever 13 is urged in the protruding direction by the urging means 14 even when the handle 15 is in use, so that the pullback boss 19 pushes the pullback portion 20 of the handle 15. The force to return to the stored state is working. Reference numeral 35 denotes a stopper formed on the lower surface of the handle 15.
Further, since the urging means 14 is installed inside the leg portion 15A of the handle 15, the urging means 14 such as a spring does not remain in the dust collecting case portion 12 when the handle 15 is put into use. Also get better.

In the present invention, in order to improve the detachability of the dust collecting case portion, the fixing means of the dust collecting case portion can be released in conjunction with the operation of using the handle, so that the dust collecting case portion is taken out from the main body of the vacuum cleaner. Can be widely used in vacuum cleaners.

The use condition external view of the whole vacuum cleaner concerning this Embodiment 1. FIG. The center longitudinal cross-sectional view of the vacuum cleaner main body of FIG. The perspective view of the vacuum cleaner dust collection case part of FIG. The dust collection case part cross section and top view of the vacuum cleaner of FIG. The operation | movement relational diagram 1 of the handle | steering-wheel and lever of the vacuum cleaner of FIG. FIG. 2 is an operation relation diagram of a handle and a lever of the electric vacuum cleaner of FIG. FIG. 3 is an operation relation diagram of a handle and a lever of the electric vacuum cleaner of FIG. Sectional drawing 1 when setting a dust collection case part in the vacuum cleaner of FIG. Sectional drawing 2 when setting a dust collection case part to the vacuum cleaner of FIG. Sectional drawing 3 when setting a dust collection case part in the vacuum cleaner of FIG. Sectional drawing 1 of the dust collection case part which concerns on Embodiment 2 of this invention. Sectional drawing 2 of the dust collection case part which concerns on Embodiment 2 of this invention. Sectional drawing 3 of the dust collection case part which concerns on Embodiment 2 of this invention.

Explanation of symbols

  1: vacuum cleaner body, 2: hose, 2A: hose insertion part, 2B: hose hand part, 3: exhaust chamber, 4: extension pipe, 5: suction tool, 6: upper case, 7: lower case, 8 : Fan motor, 9: Cord winder, 10: Dust collection chamber, 11: Upper lid, 12: Dust collection case part, 13: Lever, 14: Biasing means (coil spring), 15: Handle, 15A: Leg part, 15B: Leg part, 15C: Grip part, 16: Filter body, 17: Partition plate, 18: Exhaust port, 19: Pull-back boss, 20: Pull-back part, 21: Front case, 21A: Guide surface, 21B: Engagement Hole (engaged part), 24: urging receiving part, 25: lateral wall, 26: slope, 27: upper wall, 32: fulcrum (rotation center) of the handle.

Claims (5)

A vacuum cleaner body with a built-in fan motor that generates air flow for dust collection;
A dust collection case unit that is detachably coupled to the main body and includes a dust collection filter,
With
The dust collecting case portion has a lock structure with the vacuum cleaner body,
The lock structure has a handle that can lift the dust collecting case part;
A lever that is biased to project from the handle to the engaged portion of the vacuum cleaner body,
In a state where the dust collecting case portion is stored in a predetermined position of the vacuum cleaner main body, the lever engages with an engaged portion of the vacuum cleaner main body to lock the dust collecting case portion, and the handle is used. In the above state, the lever is returned from the projecting state to the non-projecting state in conjunction with the handle and the locked state of the dust collecting case portion is released. The handle is supported by the dust collecting case so as to rotate between a standing state and a retracted state, and the lever is returned to a non-projecting state when the handle is raised. 2. The electric vacuum cleaner according to claim 1, wherein the lever is urged and inserted into an engagement hole formed in the main body of the electric vacuum cleaner in the retracted state from the side. . 3. The electric vacuum cleaner according to claim 1, wherein the biasing means of the lever is constituted by a coil spring provided in a leg portion of the handle. 4. The electricity according to claim 1, wherein the engaged portion of the main body of the vacuum cleaner to which the lever engages is an engagement hole formed in a front case surrounding the fan motor. Vacuum cleaner. 5. The electric vacuum cleaner according to claim 4, wherein an inclined surface is formed on the upper surface of the front case so as to be in sliding contact with the lever tip portion in the process of engaging the engaged portion.

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