JP2571966Y2 - 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 a vacuum cleaner.

[0002]

2. Description of the Related Art As a conventional vacuum cleaner, a cylindrical main body made of a metal plate, a front lid for covering a front opening of the main body, and a rear lid for covering a rear opening of the main body are provided. There is something consisting of Here, a suction hose fitting inlet is formed in the front lid, and as the rear lid, an electric cord is housed so that the electric cord can be drawn out and wrapped freely, and a reel having a built-in cord reel for winding the drawn out electric cord is provided. Some use cases.

On the other hand, inside the main body is a partition plate (motor base).
Accordingly, the main body is divided into a dust collecting space on the front opening side and a blower space on the rear opening side. In the dust collecting space, a bag-shaped dust collecting filter is arranged, while in the blower space, an electric blower (hereinafter, referred to as a blower) including a motor and a blowing unit is arranged in a state where it is attached to a motor base. The blower sucks air, dust and the like from a front opening through a suction hose by rotation of a motor, and collects the dust by a dust collecting filter.

[0004]

However, in such a conventional vacuum cleaner, it is necessary to fix the motor to the main body in order to prevent the motor itself from rotating due to a reaction force at the time of starting the motor.

However, since the main body is formed integrally by pressing a metal plate, in order to fix the motor to the main body at the time of assembly, first, a mounting portion for fixing the motor is welded to the main body. It must be fixed, and then the motor must be fixed to this mounting portion with screws or the like, and there is a problem that workability during assembly is poor.

Further, when the vacuum cleaner is used, the pressure of the sucked air causes the dust collecting filter to come into close contact with the inner surface of the main body, so that the air containing dust and the like sucked from the suction hose is not used for the dust collecting filter. Dust and the like pass through the bottom portion, and the dust is concentrated on the bottom portion and is collected, so that there is a problem that the dust efficiency of the dust collecting filter is reduced.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vacuum cleaner capable of improving workability at the time of assembling and efficiently collecting dust and the like.

[0008]

According to the present invention, there is provided a cylindrical body made of synthetic resin in which the inner diameter of one end opening is smaller than the inner diameter of the other end opening, and before the one end opening of the main body is covered. A lid, a rear lid for covering the other end opening of the main body, and mounted in the main body from the other end opening to form a dust collecting space on the one end opening side and to the other end opening side A partition plate forming a blower space, and an electric blower housed in the blower space and sandwiched between the rear lid and the partition plate, wherein a rotation preventing portion is formed in the partition plate, and the inner surface of the main body is formed. In addition, a partition plate restricting rib that engages with the rotation preventing portion to prevent the rotation of the partition plate is formed, and the partition plate restricting rib is extended into the dust collecting space to serve as a dust collecting filter holding rib. It is characterized by having done.

[0009]

[0010]

With this configuration, the electric blower is sandwiched between the partition plate attached to the cylindrical body made of synthetic resin to form the dust collecting space and the blower space, and the rear lid covering the other end opening of the main body. . The rotation of the partition plate is restricted by a partition plate restricting rib integrally formed on the main body corresponding to the dust collecting space, and the partition plate restricting rib prevents the dust collecting filter from coming into close contact with the inner surface of the main body.

[0011]

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

FIG. 1 is a schematic side sectional view showing the structure of an electric vacuum cleaner according to an embodiment of the present invention, and FIG. 2 is a rear vertical sectional view thereof. In FIGS. 1 and 2, reference numeral 1 denotes a cylindrical main body formed of a heat-resistant synthetic resin such as polypropylene, and a front opening 1a, which is one end of the main body 1, is fitted with a suction hose (not shown). The rear opening 1b, which is the other end, is covered with a reel case 4. The inner diameter of the main body 1 is changed from the front opening 1a to the rear opening 1b by a punching taper formed when the main body is molded.
The diameter gradually increases toward.

A motor base 5 is fixed to an upper portion of the inner surface of the main body 1, so that the main body 1 corresponding to the dust collecting space 1c is provided.
The motor base locking portion 6 integrally formed with the first base member extends. As shown in FIG. 2, an upper motor detent rib 6a which is a partition plate restricting rib is provided at the center of the upper surface of the motor base locking part 6, and on both sides of the upper motor detent rib 6a. Upper dust collecting filter holding ribs 6b and 6c, which are filter holding ribs, extend on the motor base locking portion 6, respectively.

Here, the upper motor detent rib 6
a is for engaging with a V-shaped groove for preventing rotation of the motor, which will be described later, formed in the motor base 5 to prevent the motor base 5 from rotating due to a reaction force when the motor 7 is started.

Further, the upper dust collecting filter holding rib 6b,
6c is for preventing the dust collecting filter 8 attached to the dust collecting space 1c together with the upper motor detent rib 6a from coming into close contact with the inner surface of the main body 1 due to the pressure of the air sucked in during use of the vacuum cleaner. is there. The upper motor rotation preventing ribs and the upper dust collection filter holding ribs 6b, 6b
c also plays a role of locking the motor base 5 together with the motor base locking portion 6.

Further, a lower motor rotation preventing rib 9a and a lower dust collecting rib 9a, which have the same functions as the upper motor rotation preventing rib 6a and the upper dust collecting filter holding ribs 6b and 6c, are provided on the lower inner surface of the main body 1. Filter holding rib 9
b, 9c are opposed to each other.

On the other hand, as shown in FIG. 1, a motor support rib 10 is provided on a reel support plate 9 which is mounted on the front side of the reel case 3 and supports a code reel (not shown). Is mounted on the reel support plate 9 with the motor support rubber 12 mounted on the bottom fitted into the motor support rib 10.

Here, the motor supporting rib 10 is provided as shown in FIG.
As shown in FIG. 1, the motor 10 is engaged with the reel support plate 9 by fitting two projections 12a of the motor support rubber 12 provided in the facing direction, for example.
Is prevented from rotating due to the reaction force.

The blower 11 connected to the motor 7
A cylindrical motor cushion 13 formed of an elastic material having a high frictional resistance, such as rubber, is provided around the front blowing section 11a. Here, the diameter of the motor cushion 13 is formed to be smaller than the diameter of the blower section 11a, whereby the motor cushion 13 is pressed against the outer circumferential surface of the blower section 11a and the outer circumferential surface of the blower section 11a is formed by the frictional resistance. It does not slide and is fixed to the blower 11.

The blower 11 around which the motor cushion 13 is provided is formed in a cylindrical shape as shown in FIG. 1 and has a front opening 5a to which a suction filter 14 for the blower is attached. It is fitted in the rear opening 5b. Normally, in this state, the blower 11
Does not slide on the inner peripheral surface of the motor base 5 due to the frictional resistance of the motor cushion 13.

On the other hand, as shown in FIG. 3, the motor base 5 has two V-shaped grooves 15 for stopping rotation of the motor formed in the opposite direction of the front end of the outer peripheral surface. It is attached to the main body 1 in a state in which it is in contact with the motor base locking portion 6 in a state where it is locked to the rib 6a for use and the rib 9a for preventing rotation of the lower motor. Here, the V-shaped groove 15 is for positioning the motor base 5 and for preventing the motor base 5 from rotating due to the reaction force of the motor 7 at the time of starting.

When the motor base 5 is pushed forward to lock the motor base 5, the positions of the V-shaped groove 15, the upper motor detent rib 6a and the lower motor detent rib 9a are shifted. In this case, the motor base 5 moves forward against the frictional resistance of the motor cushion 13 so as to contact the motor base locking portion 6 while rotating against the frictional resistance of the motor cushion 13 due to the inclination of the V-shaped groove 15.

Accordingly, the blower 11 (motor 7) is held by the motor base 5 via the reel support plate 9 and the blower 11a so as not to rotate in two front and rear directions.

When the motor base 5 is fitted into the inner surface of the main body 1 at the rear end of the outer peripheral surface of the motor base 5,
An airtight fin 16 having elasticity for keeping airtightness between the inner surface of the main body 1 and the motor base 5 by pressing against the inner surface of the main body 1 is provided. Thus, when the motor base 5 is fitted into the main body 1, the fins 16 for maintaining airtightness are brought into contact with the inner surface of the main body 1 to maintain airtightness between the dust collecting space 1c and the blower space 1d.

In FIG. 1, 18a is a front caster, 18b is a rear caster, 19 is a hook for opening the front cover 2, and in FIG. 3, 20 is a wiring cord and 21 is a power plug. .

Next, the assembly of the vacuum cleaner constructed as described above will be described.

First, the main body 1 is formed into a cylindrical shape with a heat-resistant synthetic resin, and the front cover 2 is attached rotatably. Next, the motor support rubber 12 at the bottom of the motor 7 is fitted into the motor support rib 10 of the reel support plate 9, and the blower 11 is placed on the reel case 4 with the motor 7 stopped.

Then, a motor cushion 13 is provided around the outer periphery of the blower 11 a of the blower 11, and then the blower 11 is fitted into the rear opening 5 b of the motor base 5 to drive the motor 7 by the reel support plate 9 and the motor base 5. Hold so that it does not rotate.

Then, as shown in FIG. 4, the main body 1 is put on the reel case 4 on which the motor 7 is mounted so as not to rotate by utilizing the taper. At this time, the V-shaped groove 15 of the motor base 5 is engaged with the upper motor detent rib 6a and the lower motor detent rib 9a of the main body 1. Here, the V-shaped groove 15 and the upper motor detent rib 6
When the position of the motor base 5 is shifted from the position of the lower motor rotation preventing rib 9a, the motor base 5 advances while rotating and abuts on the motor base locking portion 6 due to the inclination of the V-shaped groove 15.

Thus, when the motor 7 is started, the motor base 5 can be prevented from rotating due to the reaction force of the motor 7. When the motor base 5 enters the main body 1, the fin 16 for maintaining the airtightness of the motor base 5 gradually comes into contact with the inner surface of the main body 1 due to the taper of the main body 1, and the dust collecting space 1c and the blower space 1d is secured.

After the reel case 4 on which the motor 7 and the motor base 5 are mounted is attached to the main body 1 in this way, the front cover 2 is opened and the dust collecting filter 8 is attached to the dust collecting space 1c. At this time, the dust collection filter 8 includes the upper motor rotation preventing rib 6a, the upper dust collection filter holding ribs 6b and 6c, the lower motor rotation preventing rib 9a, and the lower dust collection filter holding ribs 9b and 9c. Accordingly, the main body 1 is held so as not to be in close contact with the inner surface.

Thus, when the vacuum cleaner is used, it is possible to prevent the dust collecting filter 8 from coming into close contact with the inner surface of the main body 1 due to the pressure of the sucked air. Not only the bottom but also the sides pass through, so it is possible to collect dust not only on the bottom but also on the sides.

As described above, the blower 11 (motor 7) is not rotated by the reel support plate 9 and the motor base 5 from two front and rear directions without welding or the like to the main body 1 made of synthetic resin. Can be pinched.
When the dust collecting filter 8 is used by the vacuum cleaner, the pressure of the sucked air causes the upper motor detent rib 6a and the upper dust collecting filter holding ribs 6b, 6c and the like integrally formed in the main body 1. Close contact with the inner surface of the main body 1 can be prevented.

[0034]

As described above, according to the structure of the first aspect of the present invention, the partition plate mounted on the cylindrical body made of synthetic resin to form the dust collecting space and the blower space, and the other end opening of the main body. The electric blower can be sandwiched by the rear lid that covers the portion, and the rotation of the partition plate can be easily regulated by engaging the rotation preventing portion of the partition plate with the partition plate regulating rib formed on the inner surface of the main body. This eliminates the need for welding work for fixing the motor, thereby improving assembly workability. In addition, the regulation filter for preventing rotation of the partition plate allows the dust collection filter to be kept away from the inner surface of the main body, and has effects such as improvement in dust collection efficiency.

[0035]

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional side view illustrating a configuration of a vacuum cleaner according to an embodiment of the present invention.

FIG. 2 is a rear vertical sectional view of the vacuum cleaner.

FIG. 3 is an exploded view of a reel case, a blower, and a motor base of the vacuum cleaner.

FIG. 4 is an assembly view of a reel case, a blower, and a motor base of the vacuum cleaner.

FIG. 5 is an essential part cross-sectional view of the electric vacuum cleaner showing a state where a motor base is incorporated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Front cover 4 Reel case 5 Motor base 6a Upper motor rotation prevention rib 6b, 6c Upper dust collection filter holding rib 9a Lower motor rotation prevention rib 9b, 9c Lower dust collection filter holding rib 11 Blower

Claims (1)

(57) [Scope of request for utility model registration] 1. A synthetic resin cylindrical body having an inner diameter of one end opening smaller than an inner diameter of the other end opening; a front lid for covering the one end opening of the main body; A rear lid that covers the opening, and a partition plate that is mounted in the main body from the other end opening and forms a dust collecting space on the one end opening side and a blower space on the other end opening side. An electric blower housed in the blower space and sandwiched between the rear lid and the partition plate; forming a rotation preventing portion on the partition plate; An electric cleaning device, wherein a partition plate regulating rib for preventing rotation of the partition plate is formed together, and the partition plate regulating rib is extended into a dust collecting space to form a dust collecting filter holding rib. Machine.