JP3177309B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a so-called upright type vacuum cleaner.

[0002]

2. Description of the Related Art Conventionally, an upright type vacuum cleaner has a problem that a handle is long and tall, so that it cannot be stored in a closet or the like. In order to solve the problem, the handle is formed to be freely bent. Japanese Patent Application Laid-Open No. 57-9430 (A47L 9/32), Japanese Utility Model Laid-Open No. 57-23261 (A47L 9 / 32) etc.

However, since the operation switch is provided on the upper portion of the handle, the operation switch is located at a lower position in the bent state of the handle, so that the operation cannot be substantially performed. When cleaning only a small portion, there is a disadvantage that the operation of extending the handle is troublesome.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has as its object to provide an electric vacuum cleaner capable of performing cleaning even when the handle is bent.

[0005]

A first means of the present invention is as follows.
A built-in electric blower, a cleaner main body having a dust collecting chamber, a suction portion provided at a lower portion of the cleaner main body, and communicating with the dust collecting chamber, an upper part of the cleaner main body, a rear side of the cleaner main body. A handle formed to be freely bendable, and a handle formed on a front side upper portion of the cleaner body, and a control unit for controlling an electric blower is formed on the handle and the handle, and the handle is The lower end of the handle is located above the lower part of the cleaner main body in a bent state toward the rear side of the cleaner main body.

A second means of the present invention includes a cleaner main body having a built-in electric blower and having a dust collecting chamber, a suction portion provided at a lower portion of the cleaner main body and communicating with the dust collecting chamber.
A handle formed at an upper portion of the cleaner main body so as to be able to bend to a rear side of the cleaner main body around a rotation axis; and a handle portion formed at an upper front side of the cleaner main body. A control unit for controlling the electric blower is formed in the unit, and a conductive wire connected to the handle-side control unit is wired on the back side of the rotation shaft in the handle.

[0007] A third means of the present invention includes a cleaner main body having a built-in electric blower and having a dust collecting chamber, a suction portion provided at a lower portion of the cleaner main body and communicating with the dust collecting chamber.
The cleaner body has an upper handle formed to be freely bent, and a handle formed on the cleaner body.The handle and the handle have a control unit for controlling an electric blower, and A changeover switch for switching between the handle side control unit and the handle unit side control unit in accordance with the bending state and the extended state of the handle is provided.

[0008]

[0009]

[0010]

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

Reference numeral 1 denotes a cleaner main body, which is composed of a right case 2 and a left case 3, and has a dust collecting chamber and a blower room (both not shown) for accommodating an electric blower therein. Reference numeral 4 denotes a suction part mounted on the lower portion of the cleaner main body 1;
Is connected to the dust collecting chamber of the vacuum cleaner main body 1 through the main body. Reference numeral 6 denotes a first handle portion integrally formed on the upper portion of the cleaner body 1. The first handle portion 6 and a second handle portion 25 which will be described later constitute a handle, and the second handle portion 25 is rotated on the upper portion. It has a pivot 7 for freely supporting. Numeral 8 denotes a carrying handle integrally formed with the cleaner main body 1 for connecting the upper portion of the front surface of the cleaner main body 1 and the pivot support 7. Reference numeral 9 denotes a grip-side control unit formed on the front side of the cleaner body 1 of the grip unit 8, and the operation thereof controls the energization of the electric blower.

Reference numeral 10 denotes a rigid synthetic resin reinforcing member accommodated in the upper portion of the cleaner body 1 and the first handle portion 6, and reference numeral 11 denotes a U-shaped reinforcement accommodated in the first handle portion 6. With the metal fittings, with the reinforcing material 10 stored in the reinforcing metal fittings 11,
A cylindrical portion 13 of the reinforcing member 10 is inserted into a boss 12 formed at a portion of the right case 2 corresponding to the upper portion of the cleaner body 1 and formed at a portion corresponding to the first handle portion 6 of the right case 2. Through holes 15 of reinforcing material 10 and through holes of reinforcing metal fittings 11
16 is inserted and temporarily fixed to one boss 14 with a screw 17 through a through hole 16 of the reinforcing metal fitting 11 and a through hole 15 of the reinforcing material 10. Then, the right case 2 and the left case 3 are connected to the boss 12,
The right case 2, the left case 3, the reinforcing member 10, and the reinforcing metal fittings 11 are fixed by screws via 14. The first member is formed by the reinforcing member including the reinforcing member 10 and the reinforcing metal member 11.
The bending and torsion of the handle 6 is reinforced, and the bending and torsion of the first handle 6 with respect to the cleaner body 1 are reinforced.

Reference numeral 18 denotes a bent portion formed in the reinforcing metal fitting 12, and an insertion hole into which an engaging portion 23 of a hook 21 described later is inserted.
A guide piece 20 for guiding the engaging portion 23 of the hook body 21 is formed at the periphery of the insertion hole 19 while bending the insertion hole 19.

Reference numeral 21 denotes a hook member disposed above the handle portion 8, which is constantly urged toward the pivot portion 7 by a spring 22.
Reference numeral 23 denotes an engaging portion formed on the hook body 21, which is detachably engaged with an engaging hole 34 of a pivot portion 26 of a second handle portion 25, which will be described later, and holds the second handle portion 25 in an extended state. It is supposed to. Reference numeral 24 denotes an operation portion formed on the hook body 21, which faces the upper portion of the handle portion 8 through an opening formed in the handle portion 8, and operates the operation portion 24 against the urging force of the spring 22. Thereby, the engagement of the engaging portion 23 of the hook body 21 with the engaging hole 34 of the second handle portion 25 is released.

Reference numeral 25 denotes a second handle portion having a pivot portion 26 rotatably supported by the pivot portion 7 of the first handle portion 6 at one end thereof. It comprises a U-shaped reinforcing metal fitting 27 accommodated in the case, and the reinforcing metal fitting 27 reinforces the second handle portion 25 against bending and torsion. Also, the second handle portion
The 25 pivots 26 are inserted between the portions of the first handle 6 corresponding to the pivots 7 of the reinforcing metal fittings 11, and are connected to the pivots 7 of the first handle 6 and the pivots 26 of the second handle 25. A rotating shaft 30 that passes through a sleeve 29 inserted into the formed opening 28
Accordingly, the first handle portion 6 is rotatably supported by the first handle portion 6.

Reference numeral 31 denotes a second handle 24
The cut-and-raised piece formed at a position corresponding to the pivot portion 25 of the second handle portion 25 protrudes outward from the side surface of the pivot portion 26.
In the extended state, the first handle portion 6 comes into contact with the edge 32 of the reinforcing bracket 11 to restrict the rotation of the second handle portion 25 toward the front side of the cleaner body 1. Reference numeral 33 denotes a sliding contact portion formed on the pivot portion 25 of the second handle portion 24.
25, the cut-up piece 31 is attached to the reinforcing bracket 11 of the first handle portion 6.
A hook hole 34 with which the engaging portion 23 of the hook body 21 is engaged in contact with the edge 32 of the hook body 21. The sliding contact portion 33 has a locking hole
From the position where 34 is formed, toward the position where the engaging portion 23 of the hook body 21 abuts in the bent state of the second handle portion 25, the radius from the rotating shaft 30 is formed in an arc shape in which the radius gradually becomes smaller. . The radius from the rotating shaft 30 at the position where the engaging portion 23 of the hook body 21 abuts in the bent state of the second handle portion 25 is:
The spring 22 is formed so as to be in a substantially extended state.
A reduction in the urging force of the spring 22 due to maintaining the contracted state of the spring 22 for a long period of time is suppressed.

Reference numeral 35 denotes a changeover switch provided on the first handle portion 6, which has an operation piece which comes into contact with the sliding contact portion 33 of the second handle portion 25, and the movable contact of which is provided on the second handle portion 25.
When the second handle 25 is bent, it is connected to the handle-side controller 9 when the second handle 25 is bent.

Reference numeral 36 denotes a gripping portion formed at the other end of the second handle portion 25, and has a handle side control portion 37 for controlling energization to the electric blower. Reference numeral 38 denotes a cover attached to the pivot 7 of the first handle 6 so as to cover the rotary shaft 30.

Reference numeral 39 denotes a locking portion formed on the back surface of the cleaner main body 1. The locking portion 39 holds the grip portion 36 of the second handle portion 25 in a state where the second handle portion 25 is bent. Inadvertent rotation is prevented.

When performing cleaning, the second handle portion 24 is extended as shown in FIG. 6, and the engaging portion 23 of the hook body 21 is inserted into the locking hole 34 of the second handle portion 25. Engage. In this state, the user grips the grip portion 36 of the second handle portion 25, and performs a push-pull operation to perform cleaning.

In this cleaning state, for example, when cleaning the lower part of furniture such as a table or a chair, the handle part side control unit 9 may collide with the furniture. Since the movable terminal of the changeover switch 35 is switched to the handle-side control unit 37, the operation of the electric blower is not inadvertently switched.

At this time, the suction unit 4 is prevented from moving due to the suction force and the friction between the suction unit 4 and the surface to be cleaned, especially at the time of the pushing operation, so that the cleaner body 1, the first handle unit 6 and the second A force is applied in a direction in which the handle portion 25 bends forward. In this state, the engaging portion 23 of the hook body 21 is
And the cut-and-raised piece 31 of the second handle portion 25 abuts the edge 32 of the reinforcing bracket 11 of the first handle portion 6, so that the second handle portion 25 is on the front side of the cleaner body 1. Does not rotate.

Since the pivot portion 7 of the first handle portion 6 and the front side of the cleaner body 1 are connected by the handle portion 8, the strength of the first handle portion 6 can be improved, and the first handle portion can be improved. 6 can be prevented from being deformed toward the front side. Further, reinforcing metal fittings 11, 27 having a U-shaped cross section are provided on the first handle portion 6 and the second handle portion 25, and the cleaner body 1 is provided.
Since the reinforcing member 10 is disposed from the upper portion to the first handle portion 6, the strength of the cleaner body 1, the first handle portion 6, and the second handle portion 25 is improved, and the force applied at the time of the push-pull operation is performed. Can withstand enough.

When the cleaner main body 1 is moved in the lateral direction during the cleaning operation, the cleaner main body 1, the first handle portion 6, and the second handle portion 25 are twisted in order to twist the grip portion 36. Although force is applied, the first handle portion 6 and the second handle portion 25 have reinforcing brackets 11 and 27 each having a U-shaped cross section, and the cleaner main body 1 cleans from the first handle portion 6. Since the reinforcing member 10 is provided over the upper portion of the machine body 1, the strength of the cleaner body 1, the first handle portion 6 and the second handle portion 25 in the twisting direction is also improved, and breakage can be prevented. it can.

When the cleaner is not in use, the handle 8 is gripped by one hand, and the hook 21 is moved by the hand to the front side of the cleaner body 1 against the urging force of the spring 22 so that the engaging portion 23 The engagement with the locking hole 34 is released. And, with the other hand, the second handle part
25 is rotated to the rear side of the cleaner body 1 so that the second handle 24
The holding portion 36 is locked to a locking portion 39 formed on the back of the cleaner main body 1 to be bent as shown in FIG.

In the bent state of the second handle portion 25, the engagement portion 22 of the hook body 20 comes into contact with the sliding contact surface 33 of the second handle portion 24, and the small diameter portion of the sliding contact surface 33 of the second handle portion 24 contacts. You will be guided. In this state, the spring 22 for urging the hook body 21 toward the pivot portion 26 can be in the extended state, and a decrease in the urging force due to maintaining the spring 22 in the contracted state for a long time can be prevented.

Further, for cleaning a narrow place such as when the ashtray is turned upside down, the second handle portion 25 can be bent. That is, in the bent state of the second handle portion 25,
The changeover switch 35 is switched to the handle-side operation unit 9, grips the handle 8, operates the handle-side control unit 9, drives the electric blower, and performs cleaning. In this state, the second
Since the handle-side control unit 37 provided on the grip unit 36 of the handle unit 25 is located on the back side of the cleaner body 1, when the handle-side control unit 37 collides with furniture such as a desk or a chair leg during the cleaning operation. However, since the changeover switch 35 is switched to the handle-side controller 9, the drive of the electric blower is not inadvertently switched.

[0029]

According to the structure of the first aspect of the present invention, the handle can be bent, and the height can be reduced so that the handle can be stored in a low-push-in box or the like. In addition, the electric blower can be controlled by operating the handle-side control unit in the handle extended state and the handle-side control unit in the handle bent state, so that the usability can be improved.

According to the configuration of the second aspect of the present invention, the handle can be bent, and the height can be reduced to accommodate the lower push-in or the like, thereby improving the storability. In addition, the electric blower can be controlled by operating the handle-side control unit in the handle extended state and the handle-side control unit in the handle bent state, so that the usability can be improved, and the handle is attached to the cleaner body. The cleaning operability can be improved by being formed on the upper part on the front side. Furthermore, since the conductive wire connected to the handle-side control unit is wired on the back side of the rotation shaft in the handle, there is an effect that the conductive wire is not pulled even if the handle is bent.

According to the configuration of the third aspect of the present invention, the handle can be bent, and the height can be reduced so that the handle can be stored in a low-sized push-in or the like, so that the storage performance can be improved. When the handle is in the extended state,
Since the electric blower can be controlled by operating the handle part side control part in the handle bending state, the usability can be improved, and the electric blower cannot be controlled by the other control part. Even if it collides with furniture or the like, the driving is not changed carelessly, and the operability can be improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part showing an extended state of a handle according to one embodiment of the present invention.

FIG. 2 is a sectional view of a main part showing the handle in a bent state.

FIG. 3 is a cross-sectional view of a main part showing the handle in an extended state as viewed from another direction.

FIG. 4 is a cross-sectional view of a main part of the handle in a bent state viewed from another direction.

FIG. 5 is an exploded perspective view of the main part.

FIG. 6 is a side view showing the handle in an extended state.

FIG. 7 is a side view showing the bending state of the handle.

FIG. 8 is a circuit diagram of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 4 Suction part 6 1st handle part 7 Pivot part 8 Handle part 9 Handle part side control part 25 2nd handle part 25 Pivot part 35 Changeover switch 37 Handle side control part

Continued on the front page (72) Inventor Isao Yoneda 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Hirofumi Mitsue 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. In-house (56) References JP-A-57-9430 (JP, A) JP-A-63-64334 (JP, U) JP-A-62-78841 (JP, U) JP-A-63-3360 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) A47L 5/28 A47L 9/32

Claims (3)

(57) [Claims] 1. A cleaner main body having a built-in electric blower and having a dust collection chamber, provided at a lower portion of the cleaner main body,
A suction unit communicating with the dust collecting chamber; a handle formed at the upper part of the cleaner main body so as to be bent to the rear side of the cleaner main body; and a handle part formed at an upper front side of the cleaner main body. A control unit for controlling the electric blower is formed on the handle and the handle, and the handle is
The lower end of the handle is a vacuum cleaner when bent to the back of the machine body
An electric vacuum cleaner configured to be located above a lower body . 2. A cleaner main body having a built-in electric blower and having a dust collecting chamber, and provided at a lower portion of the cleaner main body,
A suction portion communicating with the dust collecting chamber, a handle formed at the upper portion of the cleaner main body so as to be bent to the rear side of the cleaner main body around a rotation axis, and formed at an upper front side of the cleaner main body. The handle and the handle
A control unit for controlling the electric blower
The conductive wire connected to the handle side control unit is
Vacuum cleaner characterized by wiring on the back side of the rotation axis in the dollar . 3. A cleaner main body having a built-in electric blower and having a dust collecting chamber, and provided at a lower portion of the cleaner main body,
A suction unit communicating with the dust collecting chamber, a handle formed on the upper part of the cleaner main body so as to be bent freely, and a handle formed on the cleaner main body, wherein the handle and the handle are provided with an electric blower. Form a control unit that controls
An electric vacuum cleaner further comprising a changeover switch for switching between a handle side control unit and a handle unit side control unit in accordance with the bending state and the extended state of the handle.