JPH0373283B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner that is powered by a battery and used as a portable vacuum cleaner.

(Prior art) Conventional vacuum cleaners of this type are, for example,
As described in Publication No. 54-70552, an electric motor that rotates a fan and a battery that drives this electric motor are arranged and housed in the main body of the vacuum cleaner, and
This battery is housed in a vacuum cleaner body with its longitudinal direction facing forward and backward, a dust collection case is detachably attached to the front of the vacuum cleaner body, and a handle is provided at the upper rear of the vacuum cleaner body. There is.

In addition, as described in Japanese Utility Model Application Publication No. 57-143054, an electric motor that rotates a fan and a battery that drives this electric motor are housed in the front and back of the main body of the vacuum cleaner. A structure is known in which a dust collection case is detachably attached to the front part of the vacuum cleaner, and a handle is provided to protrude toward the rear of the upper part of the vacuum cleaner body.

(Problem to be Solved by the Invention) In the conventional vacuum cleaner having the structure described in Japanese Patent Application Laid-open No. 54-70552, the handle is located above the battery housed in the main body with the longitudinal direction being the front and rear direction. Because of this, the main body of the vacuum cleaner becomes long in the front and back direction, making it impossible to make it smaller.
Moreover, when you hold the handle and operate the mobile phone, the front side is heavy and unbalanced, and when the vacuum cleaner is placed vertically on the back rest when not in use, the battery is vertically aligned, and the electric motor is placed above the battery. were arranged vertically, and the dust collection case rested on top, which caused the problem of poor stability as the center of gravity was located upwards.

In addition, in the vacuum cleaner having the structure described in Japanese Utility Model Application Publication No. 57-143054, the handle protrudes rearward from the upper rear part of the main body, so the vacuum cleaner main body becomes long in the front and rear direction, making it compact. Furthermore, when using the vacuum cleaner while holding the handle while carrying it, the front side is heavy and unbalanced, and the vacuum cleaner itself cannot be placed vertically to reduce the floor space it occupies when not in use. It was hot.

The present invention was developed in view of the above-mentioned problems.The present invention is made compact to be suitable for carrying, has good balance when being carried, and is placed vertically with the rear side facing the bottom when not in use, reducing the occupied floor space. To provide a vacuum cleaner that is both efficient and stable.

(Means for Solving the Problems) A vacuum cleaner according to the first invention includes a fan, an electric motor having a smaller diameter than the fan, which rotates the fan, and a power source battery for the electric motor, and has a handle. It consists of a main body, and a dust collection case that is detachably attached to the front part of the vacuum cleaner main body, has a suction port, and houses a filter device, and the dust collection case and the electric motor and battery built into the vacuum cleaner main body are connected to the dust collection case. are arranged in series, the vacuum cleaner body has a recessed part formed by recessing an outer wall above the electric motor between the fan and the battery, and a handle is disposed opposite to the recessed part. , the battery is housed in the vacuum cleaner main body behind the handle position with the longitudinal direction facing up and down.

The vacuum cleaner of the second invention includes a vacuum cleaner body that includes a fan, a motor that rotates the fan with a smaller diameter than the fan, a power supply battery for the motor, and a handle, and a front part of the vacuum cleaner body. a dust collection case that is detachably attached to the vacuum cleaner body and has a suction port and houses a filter device; the dust collection case and the electric motor and battery built into the vacuum cleaner body are arranged in series; can be placed vertically with the rear surface as a mounting part, the outer wall above the motor between the fan and the battery is recessed to form a recessed part, and a handle is disposed opposite to this recessed part. The battery has a substantially rectangular parallelepiped shape, and is housed in the vacuum cleaner main body behind the handle position with the longitudinal direction being the vertical direction.

(Function) When cleaning, the first vacuum cleaner is operated by grasping the handle of the vacuum cleaner body. When carried, the handle is placed opposite the recessed part of the vacuum cleaner body formed above the electric motor, which has an outer diameter smaller than the fan, between the large diameter fan and the battery, and the battery is placed in the vacuum cleaner body. Since the longitudinal direction is the vertical direction at the rear of the vacuum cleaner, the length in the front and back direction can be shortened and the height can be lowered, making it possible to downsize the entire vacuum cleaner body.
The dust collection case, electric motor, and battery are arranged in series, giving a good weight balance and making it easy to grip the handle.

Further, the vacuum cleaner of the second invention can be placed vertically with the mounting portion on the rear surface of the vacuum cleaner body facing downward when not in use. When the battery is placed vertically, the heavy battery is located at the bottom, and the longitudinal direction is horizontal, so that stability is maintained well.

(Example) The configuration of an example of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a vacuum cleaner body, and as shown in Fig. 1, the rear surface is formed into a flat mounting part that can be placed vertically, and as shown in Fig. 6, a groove-shaped ventilation hole 2 is formed in the front surface. As shown in FIG. 1, a handle 4 is integrally formed opposite to a recessed part 1a in which the upper part of the outer wall is recessed. and,
As shown in FIG. 5, a battery storage section 6 is formed vertically at the rear side of the vacuum cleaner main body 1 from the rear side of the handle 4 to the lower part, and the lower part of the battery storage section 6 has an opening 7. is formed, and engagement grooves 8 are formed on both sides of this opening 7 in the front-rear direction. A lid 9 that can open and close the opening 7 is slidably engaged with the engagement groove 8 on both sides.

Further, as shown in FIG. 1, the vacuum cleaner main body 1
Inside, a motor storage part 10 is formed at the lower part of a handle 4, which is disposed facing the recessed part 1a, and facing the ventilation part 3. Further, a circuit board storage section 11 located below the handle 4 is formed between the motor storage section 10 and the battery storage section 6.

Further, as shown in FIG. 6, the vacuum cleaner main body 1
At the front lower part of the dust collecting case 12, locking parts 15 and 16 which are open on the upper surface and which releasably lock the engaging part 14 that integrally projects downward at the rear lower end of the dust collection case 12 are formed on the left and right sides, The central space of the locking portions 15, 15 is formed into a suction port storage portion 16, and the movable engager 17 of the dust collection case 12 is removably locked to the upper part of the vacuum cleaner body 1. A locking portion 18 is formed. Further, as shown in FIG. 1, the suction port support portion 19 is integrally formed on the lower surface of the vacuum cleaner main body 1 and is located in front of the opening 7 of the battery storage portion 6, facing the storage portion 16. It is installed protrudingly.

A large-diameter fan 20 is placed in opposition to the ventilation part 3 in the vacuum cleaner body 1, and an electric motor 21 with a smaller diameter than the fan 20 is housed in the motor storage part 10.
The handle 4 is disposed above the electric motor 21. Further, the electric motor 21 is provided in the battery storage section 6.
A rechargeable battery 22 serving as a power source is placed vertically in the opening 7.
It is inserted and stored. This battery 22 is formed into a substantially rectangular parallelepiped, and its longest side is connected to the vacuum cleaner body 1.
It is housed in the vertical direction, with the surface having a smaller cross-sectional area facing the opening 7. Further, a circuit board 23 forming a charging circuit for the battery 22 is stored in the circuit board storage section 11, and this circuit board 23 is connected to a connection plug 24 that is connected to an adapter provided on the vacuum cleaner body 1. .

Furthermore, the electric motor 21 is located on the front side of the handle 4 at the upper front side of the vacuum cleaner main body 1.
A switch 25 is provided to control the.

In this way, the electric motor 21 and the battery 22 are arranged in series from the front side to the rear side in the vacuum cleaner main body 1, and the handle 4 is arranged above the electric motor 21 between the fan 20 and the battery 22. A battery 22 is disposed behind the.

In addition, the suction port body 26 stored in the suction port body storage portion 16 is formed of a pipe having a substantially rectangular cross section and widened at the base end, and the suction end surface at the tip is inclined downward. As shown in FIG. 1, the rear end of this suction port body 26 is
The front end is press-fitted into the suction port storage portion 16 between the locking portions 15, 15, and the suction port 26 is attached to the bottom surface of the vacuum cleaner body. The vacuum cleaner body 1 is stored with its axial direction aligned with the front-back direction of the cleaner body 1.

Incidentally, the vacuum cleaner main body 1 is constituted by a two-part case member molded from synthetic resin, and a boss portion 13 is connected with a screw member.

Further, as shown in FIG. 1, the dust collection case 1
2, an opening 28 for mounting a filter device 27 is formed on the rear surface connected to the front surface of the vacuum cleaner main body 1, and a locking portion 15 of the vacuum cleaner main body 1 is formed on the lower left and right sides of the lower part of this opening. , 15 protrudes downward. Furthermore, a movable engager 1 is provided at the upper part of the opening 28 of the dust collection case 12.
7 is rotatably supported on a shaft 29, and a hook portion 30 is formed at the tip of this engaging element 17 to be engaged with the engaging part 18 of the vacuum cleaner main body 1, and the rear end of this engaging element 17 is An elastic piece 31 that contacts the upper wall of the dust collecting case 12 and urges the movable engaging member 17 in the direction of engaging the locking portion 18 is provided in a protruding manner.

In addition, as shown in Fig. 1, this dust collection case 1
2 has an upper surface inclined downward toward the front side, and a front surface inclined toward the rear side. A suction port 32 to which the suction port body 26 is detachably attached is opened in the front surface of the dust collection case 12.
This suction port 32 projects inside the dust collection case 12 in a cylindrical shape, and an on-off valve 33 made of rubber or the like that opens and closes the inside end of this suction port 32 is attached to a boss 34 that projects inside the dust collection case 12. It is attached with push nut 35, etc.

Next, in FIG. 8, reference numeral 36 denotes a brush stand, which is formed in a substantially U-shape with a cutout at the top.
6 has brush bristles 37 implanted therein. and,
This brush stand 36 has a shaft portion 38 facing the inner surfaces on both sides.
is formed protrudingly, and this shaft portion 38 is connected to the dust collection case 12.
The brush stand 36 is rotatably attached to both sides of the suction port 32, and the brush stand 36 is attached so as to surround the suction port 32 except for the upper side. Therefore, it can be rotated even when the suction port body 26 is inserted, as shown in FIG.

As shown in FIG. 1, the filter device 27
is composed of a bag-shaped dust filter medium 39 and a seal support frame 40, and this seal support frame 40 airtightly holds the opening 28 of the dust collection case 12 and holds the filter medium 39 in the dust collection case 12. Dust collection case 12
is connected to the vacuum cleaner body 1, and the vacuum cleaner body 1
It is designed to airtightly hold and surround the ventilation section 3 of.

Further, as shown in FIG. 1, the vacuum cleaner main body 1
is provided with a light emitting diode 41 that indicates when the battery 22 is being charged, and this light emitting diode 41
A display window 42 is provided in the upper part of the vacuum cleaner body 1 so that the lighting of the display window 42 can be confirmed.

Next, the operation of this embodiment will be explained.

When cleaning, the user holds the handle 4 and carries the cleaner body 1. In this state, dust collection case 1
2. The electric motor 21 and the battery 22 are arranged in series, and the handle 4 is arranged on the upper part of the cleaner body 1, so that the handle 4 can be held in a well-balanced manner. When the switch 25 is closed, the electric motor 21 is driven using the battery 22 as a power source, and air is sucked in from the suction port 32 by rotation of the fan 20, and as shown in FIG. Cleaning surface 43
Slide it to clean it. At this time, the vacuum cleaner body 1
When the brush stand 36 is raised as shown in FIG. The brush bristles 37 on the rear side do not separate from the surface to be cleaned 43, and the brush bristles 37 follow the surface to be cleaned 43, do not damage surfaces to be cleaned such as tables, and remove dust. suction is carried out efficiently.

Furthermore, the front side of the brush stand 36 is notched to remove large dust such as paper scraps, and both sides and the rear side are sealed with brush bristles 37, and a gap is formed between the front side and the surface to be cleaned 43. Therefore, dust can be reliably sucked in without being pressed.

When cleaning using the suction port 26, the base of the suction port 26 is inserted into the suction port 32 of the dust collection case 12, as shown in FIG. At this time, the front surface of the dust collection case 12 is tilted, and the brush stand 3
Since 6 is substantially U-shaped, the suction port body 26 does not come into contact with the brush stand 36.

When storing the vacuum cleaner main body 1, the base end of the suction port body 26 is fitted into the support part 19 on the lower surface of the vacuum cleaner main body 1, and the distal end side is inserted into the locking part 15 that protrudes from the lower surface of the vacuum cleaner main body 1. , 15 to house the suction opening body 26 on the lower surface of the cleaner main body 1. In this way, the suction port body 26
Since the vacuum cleaner body 1 is housed on the underside of the vacuum cleaner body 1, the vacuum cleaner body 1 is not subject to any restrictions in terms of design, and there is no need to increase the size of the vacuum cleaner body.

When the vacuum cleaner main body 1 is placed vertically with the rear surface as the bottom surface, the heavy battery 22 is positioned at the bottom with the longitudinal direction parallel to the horizontal direction, and the vacuum cleaner main body 1 is stably held in the vertical position. The area occupied by the main body 1 can be reduced compared to the case where the cleaner main body 1 is placed horizontally.

Furthermore, when using the vacuum cleaner main body 1 from the stored state, the suction port body 26 is stored and exposed on the bottom surface of the vacuum cleaner main body 1 in the vertical position, so the suction port body 26 can be quickly taken out. .

Furthermore, when replacing the battery 22, the lid 9 is slid to open the opening 7, and the battery 22 is replaced.
The surface of the battery 22 with a smaller cross-sectional area is the opening 7.
Since the opening 7 is opposed to the main body 1, the area of the opening 7 can be reduced, and the strength of the cleaner main body 1 can be increased. Since the opening 7 for inserting and removing the battery 22 is formed on the bottom surface of the vacuum cleaner main body 1, the handle 4 is provided at the top, and the battery 2 is placed vertically, the vacuum cleaner main body 1 has a triangular shape that slopes downward toward the front. Therefore, the opening 7 is formed at the widest area of the cleaner body 1, and the strength of the cleaner body 1 can be increased.

In addition, since the vacuum cleaner body 1 has a handle 4 and a storage part 6 for the vertical battery 22 is formed on the rear side, the rear side is naturally raised, and an opening 7 for battery replacement is formed at that position. , the strength of the vacuum cleaner body can be increased.

Furthermore, the vacuum cleaner main body 1 has a vertical battery 22 on the rear side.
Since the storage part 6 is formed, the rear side is naturally high, the handle 4 formed on the vacuum cleaner main body 1 does not protrude, and the cleaner can be placed vertically.

Further, when charging the battery 22, an AC power source is connected to the connection plug 24 via an adapter to supply DC voltage to the battery 22. When the battery 22 is being charged, the light emitting diode 41 is turned on, and the lighting state can be checked from the display window 42.

Next, the charging circuit of the circuit board 23 will be explained with reference to FIG.

The adapter 44 is a plug 45 that connects to an AC power source.
A transformer 46 is provided, the primary side of which is connected to this plug 45, and the secondary side of this transformer 46 is connected to a connecting pin 47 that is connected to the connecting plug 24 of the cleaner body 1.

In the charging circuit 48, when the battery 22 is uncharged, the battery 22 is charged with DC current from the first SCR 49 via the diode 50. That is, the battery 22
is uncharged, a voltage detection circuit consisting of a Zener diode 51 and a resistor 52 between the first control SCR 49 and the ground causes the second control SCR 53 to be activated.
is turned off and the battery 22 is charged. At this time, a current flows through the diode 60, the resistor 54, the Zener diode 55, the light emitting diode 41, and the resistor 56, the light emitting diode 41 is lit, and the battery 22
The light emitting diode 41 is lit during charging.

Furthermore, when the charging of the battery 22 is completed, the battery 22
The current flowing to the zener diode 51 decreases, the potential of the zener diode 51 of the voltage detection circuit increases, and the second control SCR 53 whose gate is connected between the zener diode 51 and the resistor 52 is turned on.
When the second SCR 53 is turned on by the resistor 57 connected between the SCR 53 and the resistor 54, the potential divided by the resistors 54 and 57 drops, and the Zener diode 55 and the light emitting diode 4
1. The potential across the resistor 56 also drops, the light emitting diode 41 is turned off, and the first control SCR 49 whose gate is connected via the diode 58 between the resistor 57 and the second control SCR 53 is turned off. As a result, the charging current to the battery 22 also stops flowing.

Also, remove the adapter 44 from the vacuum cleaner main body 1,
When the switch 25 is closed, a discharge circuit for the battery 22 is formed and the electric motor 21 is driven.

By placing the battery 22 inside the vacuum cleaner body 1 at the rear of the handle 4, the handle 4 is naturally raised higher and the area of the rear surface becomes larger. This improves stability and prevents the arm from hitting the handle.

〔Effect of the invention〕

According to the first invention, the dust collection case, the electric motor provided in the vacuum cleaner body, and the battery are arranged in series, and the handle is located above the vacuum cleaner body and has an outer diameter smaller than the fan between the fan and the battery. The battery is placed facing the recessed part of the vacuum cleaner, and the battery is placed at the rear of the vacuum cleaner body so that the longitudinal direction is the top and bottom, so there is no need to make the handle protrude above the main body as in the past, and the height can be lowered. The length can be shortened in the front and back direction, making the vacuum cleaner more compact.Also, when cleaning by grasping the handle of the vacuum cleaner, the overall weight is balanced and the vacuum cleaner is kept in a horizontal position. Therefore, the vacuum cleaner main body can be downsized and has good portability.

According to the second invention, when not in use, the vacuum cleaner can be placed vertically with the placement part on the rear surface facing downward, and at this time, the battery is shaped into a substantially rectangular parallelepiped and placed on the back of the vacuum cleaner. Since the battery is housed with its longitudinal direction facing up and down, the battery's longitudinal direction is horizontal, expanding the area of the mounting surface on the back of the vacuum cleaner body, stabilizing the weight of the battery, and further increasing the area of the mounting surface on the back of the vacuum cleaner body. When placed with the placing part facing downward, the height is low and it is difficult to topple over.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of a vacuum cleaner showing an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view showing the same state during cleaning, and FIG. 3 is a vertical cross-sectional view of the vacuum cleaner showing the same state during cleaning. Fig. 4 is a longitudinal sectional view showing the state in which the suction port body is used, Fig. 5 is a rear view with a part of the vacuum cleaner main body cut away, and Fig. 6 is a longitudinal sectional view of the vacuum cleaner main body. FIG. 7 is a longitudinal sectional view of the suction port of the dust collection case, FIG. 8 is a bottom view of the brush stand, and FIG. 9 is an electric circuit diagram. 1... Vacuum cleaner body, 1a... Recessed part, 4... Handle, 12... Dust collection case, 20... Fan,
21...Electric motor, 22...Battery, 27...Filter device, 32...Suction port.

Claims (1)

[Scope of Claims] 1. A vacuum cleaner body that includes a fan, a motor that rotates the fan with a diameter smaller than that of the fan, and a power supply battery for the motor and has a handle; a dust collection case that is attached and has a suction port and houses a filter device, the dust collection case and the electric motor and battery built into the vacuum cleaner body are arranged in series, and the vacuum cleaner body is connected to the fan and An upper outer wall of the electric motor between the battery and the battery is recessed to form a recessed part, a handle is disposed opposite to the recessed part, and the battery is located within the vacuum cleaner body behind the position of the handle. A vacuum cleaner characterized in that the vacuum cleaner is stored with its longitudinal direction facing up and down. 2. A vacuum cleaner body, which includes a fan, a motor with a smaller diameter than the fan, which rotates the fan, and a power supply battery for the motor, and has a handle, and a suction port that is detachably attached to the front of the vacuum cleaner body. and a dust collection case housing a filter device, the dust collection case and the electric motor and battery built into the vacuum cleaner body are arranged in series, and the vacuum cleaner body can be placed vertically with the rear surface as a mounting part. an outer wall above the electric motor between the fan and the battery is recessed to form a recessed part, a handle is disposed opposite to the recessed part, and the battery has a substantially rectangular parallelepiped shape; A vacuum cleaner characterized in that the vacuum cleaner body is housed behind the handle position with the longitudinal direction oriented vertically.