JPH11113820A - Suction tool for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a connecting tube from directly touching a joint pipe and prevent the damage of an opening edge part of the joint tube by forming notched parts extending continuously to the openings, when the suction tool for a floor is collided with a wall, etc., in cleaning so that a force is applied in the direction for bending the connecting tube and the joint tube. SOLUTION: This suction tool is so constituted that a recessed groove 2 is formed in the outer circumference of a connecting tube 1 connected to the suction tool main body, openings 4 are formed in a joint tube 3 attached to the connecting tube 1, and a stopper member 5 is inserted from the openings 4 so that the connecting tube 1 and the joint tube 3 are prevented from being slipped off. In this case, notched parts 6 continued to the openings 4 are formed inside the front or rear parts of the openings of the joint tube 3 respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction device for a floor of a vacuum cleaner, and more particularly, to a connection pipe connected to a suction device body,
The present invention relates to a connection part with a joint pipe attached to a connection pipe.

[0002]

2. Description of the Related Art Conventionally, a floor suction device of a vacuum cleaner is shown in FIG.
As shown in FIG. 9 to FIG.
The connecting pipe 31 is connected to the connecting pipe 31 so as to be rotatable in the circumferential direction, and when the user cleans the lower part of the bed, the hand is lowered downward. Alternatively, the suction tool main body can be inserted to the back by rotating the suction tool body left and right, so that usability can be improved.

[0003] In order to connect the connecting pipe 31 and the joint pipe 32, a concave groove 33 is formed on the outer periphery of the connecting section of the connecting pipe 31, and openings 34 are formed on both sides of the cylindrical part of the joint pipe 32. With the joint pipe 32 connected to the connection pipe 31, a stopper member 35 is inserted into the opening 3 to interpose the stopper member 35 between the opening 34 of the joint pipe 32 and the concave groove 33 of the connection pipe 31. The joint pipe 32 and the connection pipe 31 are fixed so as not to come off.

In the above configuration, during cleaning, the suction tool main body 30
When a force is applied to a position deviated from the axial direction of the connecting pipe 31 on the front surface of the suction tool main body 30 as shown by an arrow A in FIG. A force is applied in a direction in which the pipe 32 is relatively bent, and a force is applied to the end of the connection pipe 31 in the direction of arrow B.
The rear edge of the opening 34 may be damaged.

At the same time, on the other opening 34 side,
Contrary to the one opening 34 side described above, the root of the connecting pipe 31 moves in the direction of arrow C and the tip of the joint pipe 32 is pushed in the outer peripheral direction, so that the rear edge of the opening 34 of the joint pipe 32 is damaged. There is a possibility that.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide a floor suction tool in which a joint pipe is not damaged even when an external force is applied to the suction tool body. Make it an issue.

[0007]

SUMMARY OF THE INVENTION The present invention provides a suction tool main body, a connection pipe provided on the suction tool main body, a joint pipe rotatably mounted on the connection pipe, and formed on an outer periphery of the connection pipe. A groove formed in the joint pipe, a stopper member inserted into the groove through the opening to prevent the connection pipe and the joint pipe from coming off, and a front part of the opening of the joint pipe. Alternatively, a notch portion continuous with the opening is formed inside the rear portion.

Further, the present invention provides a suction tool main body, a connection pipe provided on the suction tool main body, a joint pipe rotatably attached to the connection pipe, and a concave groove formed on an outer periphery of the connection pipe. An opening formed in the joint pipe, and a stopper member inserted into the concave groove through the opening to prevent the connection pipe and the joint pipe from coming off. And a notch portion that is continuous with.

Further, the present invention provides a suction tool main body, a connection pipe provided in the suction tool main body, a joint pipe rotatably attached to the connection pipe, and a concave groove formed on the outer circumference of the connection pipe. An opening formed in the joint pipe, and a stopper member inserted into the concave groove through the opening to prevent the connection pipe and the joint pipe from coming off. And a notch continuous with the opening is formed, and an inner peripheral corner of the opening is formed in a curved shape.

Further, the present invention provides a suction tool main body, a connection pipe provided on the suction tool main body, a joint pipe rotatably attached to the connection pipe, and a concave groove formed on an outer periphery of the connection pipe. An opening formed in the joint pipe, and a stopper member inserted into the concave groove through the opening to prevent the connection pipe and the joint pipe from coming off. And a bulge portion is formed in the outer peripheral portion of the joint pipe corresponding to the notch portion.

Further, the present invention provides a suction tool main body, a connection pipe provided in the suction tool main body, a joint pipe rotatably attached to the connection pipe, and a concave groove formed on an outer periphery of the connection pipe. An opening formed in the joint pipe, and a stopper member inserted into the concave groove through the opening to prevent the connection pipe and the joint pipe from coming off. And a bulge is formed in the outer peripheral portion of the joint pipe corresponding to the notch, and an inner peripheral corner of the opening is formed in a curved shape.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. The same parts as in the prior art are denoted by the same reference numerals and description thereof will be omitted.

Reference numeral 1 denotes a connection pipe connected to the rear central portion of the suction tool main body 30, and is disposed so as to be vertically movable with respect to the suction tool main body 30. Reference numeral 2 denotes a concave groove formed on the outer peripheral portion of the connection pipe 1 so that a stopper member * described later fits therein.

Reference numeral 3 denotes a joint pipe connected to the connection pipe 1.
The joint pipe 3 is attached to the connection pipe 1 so as to be rotatable in the circumferential direction. 4 is a concave groove 2 of the connecting pipe 1 of the joint pipe 3
In a state where the joint pipe 3 is connected to the connection pipe 1 at an opening formed at a position corresponding to
Is inserted, the stopper member 5 is interposed between the opening 4 and the concave groove 2 to prevent the connection pipe 1 and the joint pipe 3 from coming off.

In front of the opening 4 on the inner peripheral surface of the joint pipe 3,
A notch 6 is formed continuously from the opening 4.

According to the above configuration, during cleaning, the floor suction tool 30 is used.
When a force is applied to a position deviated from the axial direction of the connecting pipe 1 in front of the suction tool main body 30 by colliding with a wall or furniture, a force is applied in a direction in which the connecting pipe 1 and the joint pipe 3 are relatively bent. A force is applied to the front side edge of the opening 4 of the joint pipe 3 by the connecting pipe 1, but since the notch 6 is formed at the front edge of the opening 4, the connecting pipe 1 directly contacts the joint pipe 3 and pushes. Therefore, it is possible to prevent the front edge of the opening 4 of the joint pipe 3 from being damaged.

In the first embodiment, the notch 6 is formed only on the front side of the opening 4. However, as in the second embodiment shown in FIGS. 3 and 4, the front and rear sides of the opening 4 are formed. The notch 6 may be formed at the bottom.

According to this configuration, in the opening 4 opposite to the opening 4 described above, the opening 4
Although a force is applied to the rear side, the notch 6 is formed at the rear side of the opening 4, so that the force of the stopper member 5 is not directly applied to the joint pipe 3, and the rear part of the opening 4 is not damaged.

Therefore, even if a force is applied to the suction tool body 30 in any direction, breakage at the opening 4 of the joint pipe 3 can be prevented.

Further, as in the third embodiment shown in FIG. 5, the corners of the opening 4 may be formed in a curved surface. Is formed into a curved surface, the stress at the corners can be dispersed, and the joint pipe 3 can be more reliably prevented from being damaged.

In each of the above embodiments, the notch 6 is formed on the inner peripheral surface of the joint pipe 3, so that the thickness of the joint pipe 3 corresponding to the notch 6 is reduced, and the strength is reduced.
As in the fourth embodiment shown in FIG. 6, by forming a bulging portion 7 on the outer peripheral portion of the joint pipe 3 corresponding to the cutout 6, the strength of the joint pipe 3 is reduced while preventing damage to the joint pipe 3. Can be prevented.

[0022]

According to the first aspect of the present invention, the notch is formed inside the front or rear portion of the opening of the joint pipe, so that the connecting pipe does not directly contact the joint pipe, and the opening of the joint pipe is prevented. The edge can be prevented from being damaged.

According to the second aspect of the present invention, the notch is formed inside the front part and the rear part of the opening of the joint pipe, so that the connecting pipe can be connected to the joint pipe even if force is applied to either the left or right of the suction tool main body. There is no direct contact, and it is possible to reliably prevent the opening edge of the joint pipe from being damaged.

According to the third aspect of the present invention, even if force is applied to either the left or right of the suction tool main body, the connecting pipe does not directly contact the joint pipe, and it is ensured that the opening edge of the joint pipe is damaged. In addition, since the inner peripheral corner of the opening is formed in a curved shape, stress at the corner of the opening can be dispersed, and damage to the opening edge of the joint pipe can be more reliably prevented.

According to the fourth aspect of the present invention, the notch is formed inside the front part and the rear part of the opening of the joint pipe so that the connecting pipe can be connected to the joint pipe even if a force is applied to either the left or right of the suction tool body. Without directly abutting, it is possible to reliably prevent the opening edge of the joint pipe from being damaged, and to form a bulging part on the outer peripheral part of the joint pipe corresponding to the notch, so that the joint pipe is thinned by the notch. It is possible to prevent a decrease in the strength of the joint pipe without changing the structure.

According to the fifth aspect of the present invention, the notch is formed inside the front part and the rear part of the opening of the joint pipe, so that the connecting pipe can be connected to the joint pipe even if force is applied to either the left or right of the suction tool main body. Without directly abutting, it is possible to reliably prevent the opening edge of the joint pipe from being damaged, and to form a bulging part on the outer peripheral part of the joint pipe corresponding to the notch, so that the joint pipe is thinned by the notch. It is possible to prevent a decrease in the strength of the joint pipe without changing the structure.

Further, since the inner peripheral corner portion of the opening is formed into a curved surface, stress at the corner portion of the opening is dispersed, and damage to the opening edge portion of the joint pipe can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of a joint pipe of a floor suction tool according to a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part showing a state where a force is applied to the suction tool main body.

FIG. 3 is a perspective view of a joint pipe of a floor suction tool according to a second embodiment of the present invention.

FIG. 4 is an essential part enlarged cross-sectional view showing a state where a force is applied to the suction tool main body.

FIG. 5 is a perspective view of a joint pipe of a floor suction tool according to a third embodiment of the present invention.

FIG. 6 is a perspective view of a joint pipe of a floor suction tool according to a fourth embodiment of the present invention.

FIG. 7 is an exploded perspective view of a floor suction tool showing a conventional technique.

FIG. 8 is a perspective view of the joint pipe.

FIG. 9 is an enlarged sectional view of a main part showing a state where a force is applied to the suction tool main body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection pipe 2 Groove 3 Joint pipe 4 Opening 5 Stopper member 6 Notch part 7 Swelling part

Claims (5)

[Claims] 1. A suction tool main body, a connection pipe provided in the suction tool main body, a joint pipe rotatably attached to the connection pipe, a concave groove formed on an outer periphery of the connection pipe, and the joint pipe. And a stopper member inserted into the concave groove through the opening to prevent the connection pipe and the joint pipe from coming off, wherein the front end or rear inside of the opening of the joint pipe is continuous with the opening. A suction tool for floors, characterized in that a cutout portion is formed. 2. A suction pipe main body, a connection pipe provided in the suction pipe main body, a joint pipe rotatably attached to the connection pipe, a concave groove formed on an outer periphery of the connection pipe, and the joint pipe. And a stopper member inserted into the concave groove through the opening to prevent the connection pipe and the joint pipe from coming off, and a notch continuous with the opening inside the front and rear portions of the opening of the joint pipe. A floor suction tool characterized by forming a part. 3. A suction pipe main body, a connection pipe provided in the suction pipe main body, a joint pipe rotatably attached to the connection pipe, a concave groove formed on an outer periphery of the connection pipe, and the joint pipe. And a stopper member inserted into the concave groove through the opening to prevent the connection pipe and the joint pipe from coming off, and a notch continuous with the opening inside the front and rear portions of the opening of the joint pipe. A floor suction device, wherein a portion is formed and an inner peripheral corner of the opening is formed in a curved shape. 4. A suction pipe main body, a connection pipe provided in the suction pipe main body, a joint pipe rotatably attached to the connection pipe, a concave groove formed on an outer periphery of the connection pipe, and the joint pipe. And a stopper member inserted into the concave groove through the opening to prevent the connection pipe and the joint pipe from coming off, and a notch continuous with the opening inside the front and rear portions of the opening of the joint pipe. And a bulging portion formed in an outer peripheral portion of the joint pipe corresponding to the cutout portion. 5. A suction tool main body, a connection pipe provided on the suction tool main body, a joint pipe rotatably attached to the connection pipe, a concave groove formed on an outer periphery of the connection pipe, and the joint pipe. And a stopper member inserted into the concave groove through the opening to prevent the connection pipe and the joint pipe from coming off, and a notch continuous with the opening inside the front and rear portions of the opening of the joint pipe. A floor suction tool, wherein a bulge portion is formed in an outer peripheral portion of the joint pipe corresponding to the notch portion, and an inner peripheral corner portion of the opening is formed in a curved shape.