JPH02112Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application This invention relates to an upright vacuum cleaner, and particularly relates to an improvement in the mechanism for separating the suction port from the floor surface when the handle body is stood upright.

(B) Prior Art In the case of an upright type vacuum cleaner equipped with a rotating brush driven by a motor at the suction port of the main body, the handle body is left in an upright position when it is used for short periods of time. At this time, there is a problem in that the rotating brush comes into rotational contact with, for example, the same part of the rug, causing damage to the rug. Therefore, in conventional products, like the one in USP3416181, there were roller bodies that protruded downward on both sides of the bottom surface and lifted the suction port when standing upright, and because they were located separately on both sides, they could not withstand large loads from above. In addition, the lowering function of the roller body was complicated.

(c) Problems that the invention aims to solve This invention was created in view of the above circumstances.
It is an object of the present invention to provide an upright vacuum cleaner equipped with a mechanism for separating a suction port from a floor surface with a simple and strong structure.

(d) Means for solving the problem In this invention, a lever body that operates in conjunction with the upright movement of the handle body and a moving guide body that guides the lever body downward are provided on the bottom surface of the main body. Its more detailed structure is that it has a suction port equipped with a rotating brush in the front part of the lower surface, and a fan motor that operates the rotating brush and performs the suction function inside. A main body in which the caster is attached by being pivotally supported on the end of the horizontal shaft, a handle body which has an arm section at the bottom that separates into two directions and the end of the arm part is pivotally supported on the end of the horizontal shaft, and is attached along the handle body. In an upright type vacuum cleaner, the handle body has a dust collecting section that communicates with the inside of the main body, and a front side section that connects both side sections projecting forward on both sides and the front ends of the both side sections below both arms of the handle body. The bases of both sides of a lever body consisting of are rotatably attached, and the front side of the lever body is attached to a part of the main body so as to be biased toward the main body by a biasing body,
In addition, a movement guide is provided at a position opposite to the front side of the lever body on the lower surface of the main body to guide the movement of the lever body so that when the lever body moves as the handle body moves upright, the front side part is positioned below the suction port. It is an upright type vacuum cleaner that is characterized by having a body.

(e) Function: The lever body operates as the handle body moves upright, and its front portion descends along the moving guide body, separating the suction port from the floor surface.

(f) Examples Examples of this invention will be described below in detail with reference to the drawings, but this invention is not limited to the following examples.

FIG. 1 shows the overall configuration, and 1 is a main body, 2 is a handle body, and 3 is a dust collecting section.

This will be explained below with reference to FIGS. 2 to 4.

The main body 1 is equipped with a suction port 5 provided with a rotating brush 4 in the front part of the lower surface. Although not shown, a ventilation path is provided from the suction port 5 into the main body 1, and the end of the ventilation path is connected to the main body 1. Located at the rear end. The lower end of the bag-shaped dust collecting section 3 is connected to the end of the ventilation path, so that dust can reach inside the dust collecting section 3. A fan motor 6 is provided in the main body 1, and a fan (not shown) of the fan motor 6 is located within the ventilation passage, and dust is sucked into the ventilation passage by rotation of the fan. Further, an operating belt 7 is placed between the shaft of the fan motor 6 and the rotating brush 4, and the rotating brush 4 is rotated as the fan motor 6 is operated. Further, casters 8, 8 are provided on both sides of the rear lower portion of the main body 1. caster 8,8
is provided so as to be pivotally supported on the end of a horizontal shaft 10 fixed to the rear lower surface of the main body 1 by means of fixtures 9, 9.

The handle body 2 is provided with arm portions 11, 11 separated into two directions at its lower part, and the ends of the arm portions 11, 11 are pivotally supported at positions inside the shaft supports of the casters 8, 8 at the ends of the horizontal shaft 10. By having the ends of the arm parts 11, 11 pivoted on the horizontal shaft 10 as described above, the handle body 2 can be appropriately positioned in the upright position as shown in FIG. 3 and in the rearward tilted position as shown in FIG. I can make it happen.

And the arm portions 11, 11 of the handle body 2
Both side parts 12, 12 of a lever body 14 are constructed of an iron rod body, in which both side parts 12, 12 and a front side part 13 that connects the front end thereof are continuously integrated near the pivot support of the lever body 14.
The base is rotatably inserted and attached. The front side part 13 is located just behind the suction port 5, and the central part is an upward concave part 15.
It is becoming. This concave portion 15 is engaged with the lower end of a biasing body 16 which is a coil spring, and the upper end of the biasing body 16 is fixed inside the main body 1 through a bottom plate 17. With this structure, the lever body 14 is always attached to the main body 1.
Forced to the side. A lever body 14 is provided on the bottom surface of the main body 1.
Step-shaped movement guides 18, 18 are provided in parallel at opposing positions on the front side portion 13 of.

The operation of separating the suction port 5 from the floor surface in the above vacuum cleaner will be described below.

Now, FIG. 4 shows the cleaning state, with the suction port 5 facing the floor and the rotating brush 4 scraping up dirt. In this state, the recess 15 of the front side 13 of the lever body 14 is located at the upper surface 19,1 of the moving guide bodies 18,18.
It is in contact with 9. When the handle body 2 is placed upright as shown in FIG.
The bases of 2 and 12 are connected to the arrow A of the arm parts 11 and 11.
It moves forward in the direction of arrow B. That is, the lever body 14 as a whole moves, and at that time, the inclined portion 2 is formed on the movement guide bodies 18, 18.
0 and 20 are provided, the recess 15 of the front side portion 11 of the lever body 14 reaches above the lower stage surfaces 21 and 21. Since the height position on the lower surfaces 21, 21 is located at almost the same height as the suction port 5, both sides 22, 22 of the recess 15 in the front side 11 of the lever body 14 are on the floor surface. As a result, the suction port 5 separates from the floor surface, and the rotating brush 4 does not touch the floor surface and does not damage the floor surface even if the rotation continues.

In the above embodiment, since the attachment positions of the bases of the both side parts 13, 13 of the lever body 14 to the arm parts 11, 11 are above the pivot parts of the arm parts 11, 11, the state shown in FIG. Although the lever body 14 moved forward when reaching the state shown in FIG.
Any suitable position may be used as long as the lever body 14 can fully operate.In this case, of course, it is necessary to provide a movable guide body 18 of an appropriately shaped shape to correspond to the movement of the lever body 14.

(g) Effects of the invention This invention is constructed as described above, and the suction port is easily separated from the floor surface by a simple mechanism, and in particular, the lever body is a rod-shaped integral part. Therefore, the strength is also fully satisfied.

[Brief explanation of drawings]

Fig. 1 is a side view of an embodiment showing the overall structure of the upright type vacuum cleaner of this invention, Fig. 2 is a partially exploded perspective view, and Figs.
FIG. 4 is a side view including a partial cross-sectional view of the main body during cleaning. 1...Main body, 2...Handle body, 3...Dust collection section, 4...
Rotating brush, 5... Suction port, 6... Fan motor,
8, 8... Caster, 10... Horizontal axis, 11, 11
...Arm part, 12, 12...Both sides, 13...Front side part, 14...Lever body, 16...Biasing body, 18...Movement guide body.

Claims (1)

[Scope of utility model registration request] A suction port equipped with a rotating brush is provided at the front of the lower surface, and a fan motor is provided inside to operate the rotating brush and perform a suction function.Furthermore, casters are pivotally supported on the horizontal shaft ends at both sides of the rear lower part. a handle body having an arm section at the bottom that is separated into two directions and whose arm end is pivotally supported by the horizontal shaft end; and a handle body that is attached along the handle body and whose interior communicates with the main body. In an upright type vacuum cleaner consisting of a dust part, there are two parts on both sides of the lever body, each consisting of both sides protruding forward on both sides and a front side part connecting the front ends of the two sides, below both arms of the handle body. The base is rotatably attached, and the front part of this lever body is attached to a part of the main body so as to be biased toward the main body by a biasing member, and the position opposite to the front part of the lever body on the lower surface of the main body is attached. An upright type vacuum cleaner characterized in that a moving guide body is provided for guiding the front side of the lever body so that it is located below the suction port when the lever body moves in conjunction with the upright movement of the handle body.