JP2511504Y2 - Upright type vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an upright type vacuum cleaner.

<Prior Art> As shown in FIGS. 4 and 5, a conventional upright type vacuum cleaner has a bottomed cylindrical vacuum cleaner body 1 and a suction port body rotatably supported by the vacuum cleaner body 1. It consists of 2.

Then, as shown in FIG. 6, the connection pipe 3 is screwed to the bottom of the electric vacuum cleaner body 1, and one end of the connection pipe 3 projects from the electric vacuum cleaner body 1. Further, the suction port body 2 is rotatably provided with a drive pipe 4 having one end protruding from the upper portion of the suction port body 2 and the other end attached to the support shaft 4a. Then, the drive pipe 4 is fitted into the connection pipe 3 and is fixed with a retaining pin or the like, whereby the vacuum cleaner body 1 is rotatably connected to the suction port body 2.

In the figure, 5 is a switch, 6 is a case cover, 7 is an exhaust port, 8 is a suction hose, 9 is a handle, 10 is a wheel, 11 is a handle supporting rod, 12 is a supporting rod guide, 13 is a cord reel, 14 is a power cord, 15 is a paper bag, 16 is a motor,
17 is a soundproof material, 18 is a rotating brush, 19 is a timing belt,
20 is a brush motor.

<Problems to be Solved by the Invention> In the above-described conventional technique, when the handle 9 is moved back and forth to tilt the cleaner body 1 to perform cleaning,
The force applied through the connecting pipe 3 and the driving pipe 4
Tries to rotate the suction port main body 2 around the wheel 10 via the support shaft 4a. Further, since a force that pushes the suction port main body 2 back and forth is also applied, the wheel 10 rotates to perform a back and forth movement. Therefore, the force applied from the handle 9 is used to rotate the suction port body 2 and the effective force for performing the back-and-forth movement is reduced, so that an extra force must be applied to the handle 9. However, when the operating force becomes large and usability deteriorates, there is a problem.

The present invention has been made in view of the above problems, and an object thereof is to provide an upright electric vacuum cleaner that can perform cleaning with a light operating force.

<Means for Solving the Problems> The means for solving the problems according to the present invention is, as shown in FIGS. 1 and 2, an inlet main body 2 and an upright type electric cleaning pivotally supported with respect to the inlet main body 2. The vacuum cleaner body 1 and an axle 10 rotatably supported on the vacuum cleaner body 1 by an axle 10a are provided. Cylindrical bearings 21 are provided at the lower portions of both side surfaces of the vacuum cleaner body 1, and the suction is provided. On the rear side of the mouth main body 2, a pair of projecting portions 22 having a space slightly larger than the width of the electric vacuum cleaner body 1 is provided, and the projecting portions 22 are provided with a circular hole 23 into which the bearing body 21 is fitted. The electric vacuum cleaner body 1 is positioned between the protrusions 22, the bearing body 21 is fitted into the circular hole 23 of the protrusion 22, and the axle 10a of the wheel 10 is fitted into the bearing body 21 and The suction port body 2 and the wheels 10 are attached to the electric vacuum cleaner body 1.

<Operation> In the above problem solving means, the electric vacuum cleaner body 1 is an axle.
At the same time as tilting around 10a, the wheels 10 rotate,
The vacuum cleaner body 1 moves.

If the wheel center P is different from the rotation center Q of the suction port body 2 as shown in FIG. 3 (a), if the vacuum cleaner body 1 is tilted, as shown in FIG. 3 (b). Since the angle formed by the suction port body 2 and the floor surface F changes and the suction port body 2 separates from the floor surface F, the suction performance at the time of cleaning and the scraping performance of the rotary brush change.

Therefore, if the axle center and the tilt center of the vacuum cleaner body 1 are made to coincide by fitting the axle shaft 10a to the bearing body 21, the wheels 10 rotate regardless of the tilt of the vacuum cleaner body 1. The suction port body 2 does not rotate with respect to the floor surface F only by moving in the front-back direction. Therefore, the suction port main body 2 and the floor surface F always have a constant space, and it is possible to always obtain the same suction performance.

Moreover, in the upright type vacuum cleaner, not only the suction port main body 2 but also the vacuum cleaner main body 1 must be simultaneously moved back and forth. By matching the tilt center of the vacuum cleaner body 1 with each other, the operating force can be reduced.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a side view of an upright type electric vacuum cleaner showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of a connecting portion between the electric vacuum cleaner main body and the suction port main body, FIG. 3 (a), (B) is a figure which shows the state at the time of tilting of the vacuum cleaner main body in the conventional upright type vacuum cleaner. The same reference numerals are given to the same functional components as those in the related art.

As shown in FIGS. 1 and 2, the upright type vacuum cleaner of the present embodiment includes a suction port main body 2, an upright type vacuum cleaner main body 1 which is pivotally supported with respect to the suction port main body 2, The electric vacuum cleaner main body 1 is provided with a wheel 10 rotatably supported by an axle 10a, and the tilting center of the electric vacuum cleaner main body 1 and the center of the wheel 10a are aligned with each other.

The vacuum cleaner body 1 is formed in a cylindrical shape with a bottom like a conventional one, and a paper bag, a motor and the like are provided inside. A handle 9 is supported at the rear of the electric vacuum cleaner body 1 so as to be vertically movable with respect to the electric vacuum cleaner body 1.

In this embodiment, cylindrical bosses 21 are provided on both sides of the lower portion of the vacuum cleaner body 1 so as to project.

As shown in FIG. 2, the suction inlet main body 2 has a substantially rectangular parallelepiped shape with a rotating brush built in on the front side, and has a pair of left and right sides with a space slightly larger than the width of the electric vacuum cleaner body 1 on the rear side. The protruding portion 22 is provided so as to project.

The protrusion 22 is formed in a semicircular plate shape, and the thickness thereof is smaller than the height of the boss 21. Then, a circular hole 23 having a diameter substantially the same as the outer diameter of the boss 21 is formed on the tip side, and the boss 21 is fitted into the circular hole 23 so that the protrusion 22 sandwiches the vacuum cleaner body 1. As a result, the vacuum cleaner body 1 is pivotably supported with respect to the suction port body 2.

The wheel 10 has a wheel 10a protruding from the inner surface of the disk, and the axle 10a is formed to have substantially the same diameter as the inner diameter of the boss 21. Wheel 1
0 is rotatably supported by the vacuum cleaner body 1.

Since the other configurations are the same as the conventional ones, detailed description will be omitted.

In the above configuration, the circular hole 23 of the protruding portion 22 of the suction port body 2 is fitted into the boss 21 of the electric vacuum cleaner body 1, and the axle 10a of the wheel 10 is inserted into the boss 21 from above.

Then, by moving the handle 9 back and forth, the vacuum cleaner body 1 tilts around the boss 21, and at the same time the wheels are rotated.
The vacuum cleaner body 1 moves as the 10 rotates.

Here, it will be described with reference to FIGS. 3 (a) and 3 (b) that the center of the axle and the tilt center of the electric vacuum cleaner body 1 need to coincide with each other.

If the center P of the axle is different from the center Q of rotation of the suction port body 2 as shown in FIG. 3 (a), if the vacuum cleaner body 1 is tilted in the direction of arrow A, the suction port body 2 is rotated. The center of movement Q moves in the direction of arrow B around the center P of the axle. As a result, as shown in FIG. 3 (b), the angle formed by the suction port body 2 and the floor surface F changes, and the suction port body 2 separates from the floor surface F, so that the suction performance and rotation during cleaning are increased. The brush scraping performance changes.

Therefore, if the center of the axle and the center of tilt of the vacuum cleaner body 1 are aligned, the wheel 10 rotates and moves in the front-rear direction regardless of the tilt of the vacuum cleaner body 1, and the suction port body 2 does not rotate with respect to the floor surface F. Therefore, the suction port main body 2 and the floor surface F always have a constant space, and it is possible to always obtain the same suction performance.

Moreover, in the upright type electric vacuum cleaner, unlike the electric vacuum cleaner in general, not only the suction inlet main body 2 but also the electric vacuum cleaner main body 1 must be moved back and forth at the same time. By matching the wheel center with the tilting center of the vacuum cleaner body 1, the operating force can be reduced, and an upright vacuum cleaner with good operability can be obtained without increasing the cost.

<Effect of the Invention> As is apparent from the above description, according to the present invention, the wheel is fitted to the bearing body of the vacuum cleaner body, and the suction port and the wheel are attached to the vacuum cleaner body. The center of tilt of the wheel and the center of the wheel axle match, and regardless of the tilt of the vacuum cleaner body, the wheel rotates and moves in the front-rear direction, and the suction port body always has a constant distance from the floor surface. A consistent suction performance can be obtained.

Further, since the bearing body of the vacuum cleaner body and the axle of the wheel can be fitted together, the suction port body can be tiltably supported.
It is possible to effectively use the internal space of the vacuum cleaner body without penetrating the shaft for pivoting in the vacuum cleaner body, and at the time of repairing the vacuum cleaner body or the suction port body such as a failure. By simply removing the wheels, the electric vacuum cleaner body and the suction port body can be easily removed by a simple work, and the work can be performed quickly.

[Brief description of drawings]

FIG. 1 is a side view of an upright type electric vacuum cleaner showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of a connecting portion between the electric vacuum cleaner main body and the suction port main body, FIG. 3 (a), FIG. 4B is a view showing a state in which the main body of the vacuum cleaner of the conventional upright vacuum cleaner is tilted, FIG. 4 is a side view of the conventional upright vacuum cleaner, and FIG. 5 is a sectional view of the same.
FIG. 6 is an exploded perspective view of a connecting portion between a conventional vacuum cleaner body and a suction port body. 1: Vacuum cleaner body, 2: Suction port body, 10: Wheel, 10a: Axle.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Goichi Kagiyama 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Prefecture Sharp Corporation (72) Kazuo Kamezu 22-22 Nagaikecho, Abeno-ku, Osaka City, Osaka Sharp Corporation (56) Bibliography SHO 61-92355 (JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. A suction port main body, an upright type vacuum cleaner main body pivotally supported so as to be tiltable with respect to the suction port main body, and a wheel rotatably supported by an axle on the vacuum cleaner main body. In the upright type electric vacuum cleaner, a cylindrical bearing body is provided at a lower portion of both side surfaces of the electric vacuum cleaner body, and a pair having a space slightly larger than the width of the electric vacuum cleaner body on the rear side of the suction port main body. A protrusion is provided with a circular hole into which the bearing body is fitted, the vacuum cleaner body is located between the protrusions, and the bearing body is fitted into the circular hole of the protrusion, An upright type electric vacuum cleaner, characterized in that an axle of the wheel is fitted to the bearing body, and the suction port main body and the wheel are attached to the electric vacuum cleaner main body.