JPS6158624A - Floor nozzle of electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a floor nozzle for a vacuum cleaner used in general households.

Conventional Structure and Problems Conventionally, there have been floor nozzles of this type in which the suction performance is adjusted in multiple stages by moving a dust collection band such as a brush up and down in multiple stages. As a multi-stage adjustment structure for the dust collector, an elastic pawl is provided protruding from the adjustment body that moves the dust collector up and down by four sliding movements, and a plurality of locking protrusions are formed at the free end of the elastic pawl. The device was designed to be engaged with one of the locking recesses.

However, with this configuration, when the adjustment body is quickly slid, the locking protrusion of the elastic pawl goes over the desired locking recess, and as a result, the suction performance can be adjusted uncertainly or It took time to operate and was very inconvenient to use.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a floor nozzle for a vacuum cleaner that eliminates the above-mentioned conventional drawbacks and allows for precise adjustment of suction performance.

Structure of the Invention The floor nozzle for a vacuum cleaner of the present invention comprises: a floor nozzle body having a dust suction section; a dust collection band that is disposed parallel to the dust suction section and is movable up and down; and a floor nozzle body. an adjusting body that is slidably provided on the dust collecting zone and moves the dust collection belt up and down in multiple stages, and an articulation means for the adjustment body, the articulation means comprising:
Protruding from one side of the adjustment body and its opposing part,
It consists of a pair of elastic pawls each having a locking protrusion formed on each free end, and a locking recess formed on the other side and located in the locus of movement of the locking protrusion, and the locking protrusion on one side A plurality of four corresponding locking parts are formed, and the other locking recess corresponding to the other locking protrusion is formed at the apex of the chevron-shaped part opposite to the one locking recess excluding both ends. This is what I did.

Therefore, when the other locking protrusion locks into the locking recess at the apex of the chevron-shaped portion, the elastic pawl of the other side increases its elasticity due to the chevron-shaped portion, thereby locking one of the locking protrusions in the middle. The locking protrusion is accurately engaged with the recess.

Description of examples Examples thereof will be described below with reference to the accompanying drawings.

In Figs. 1 to 7, 1 indicates upper and lower nozzle members 2.3
The floor nozzle main body is constructed by connecting the two through the bumper 4, and the rear central part thereof is formed into a circular shape and is pivotally mounted on the substantially cylindrical part 6 of the suction joint 5 so as to be able to move up and down. Reference numeral 7 denotes moving wheels disposed near and below the pivot point of the floor nozzle body 1 relative to the suction joint 5. In addition, the lower nozzle member 3 of the floor nozzle body 1 has a suction port 8 and a dust suction portion 1o that extends left and right from the suction port 8 and has a suction groove 9 with an open outer end, and a dust suction portion 1o that is parallel to the dust suction portion 10 in front and rear. A slit-shaped opening 11 located at is formed.

In the floor nozzle main body 1, there are provided a pair of dust collection bands 12 and an adjustment body 13 that moves the dust collection bands up and down in multiple stages. The dust collection zone 12 has a structure in which brushes 15 are installed in a bundle on a brush holder 14, and each brush holder 1
The brush 15 is held movable up and down by aligning the guide holes 16 formed at both ends of the brush 15 with the guide holes 16 formed at both ends of the brush 15. The nozzle 6A2 is a part that protrudes and retracts downward from the floor nozzle main body 1 through the slit-like opening 11 as it moves up and down.

In addition, the adjusting body 13 has a frame-shaped living body part 18 made of synthetic resin, and is held by the upper and lower nozzle members 2 and 3 so as to be slidable left and right. Cam grooves 19 are formed on the left and right sides. These cam grooves 19 are set in an inclined shape so that a difference in height occurs in the horizontal direction. 20 is a shaft that protrudes from the left and right sides of each dust collection zone 12 and is fitted into the cam groove 19, respectively; 21 is an operator for the adjustment body 13, which faces outward from the window hole 22 of the upper nozzle member 2; be.

Reference numerals 23 and 24 denote elastic claws protruding from one side of the main body 18 and having locking protrusions 26 and 26 formed at each free end; 27 is the lower surface of the upper nozzle member 2; is formed on the movement locus of the locking protrusion 26, and the locking protrusion 2
6 is a lip that makes elastic contact, and a plurality of locking recesses 2B1 in the longitudinal direction.
L, 28b, and 28C are provided. Also, 29 is the lower surface of the upper nozzle member 2, and the other elastic claw 24
A mountain-shaped portion formed on the movement locus of the locking protrusion 26,
the above .

A locking recess 3o is formed at the apex of the six-benzo locking recess 28b.

On the other hand, the suction joint 6 has a bent tubular connecting part 31 rotatably connected to the rear thereof, and a notch opening 32 is formed in a part of the peripheral wall of the substantially cylindrical part 6.

Reference numeral 33 indicates an extension tube detachably connected to the connecting portion 31.

In the above configuration, the brush 16 of the dust collection band 12 is adjusted according to the condition of the surface to be cleaned. For example, when the surface to be cleaned is a carpet, the brush 16 is in the retracted state, If you want to get a strong suction force, use a medium suction force.
Furthermore, if a weak suction force is desired, the maximum output is set. Such adjustment of the protrusion of the brush 15 is performed by sliding the adjustment body 13 left and right through the operator 21 and moving the brush body 12 up and down along the cam groove 19 thereof.

By the way, when adjusting the suction performance by sliding the adjustment body 13 from side to side to change the protrusion of the dust collecting belt 12, the adjustment body 13 slides precisely and dynamically. That is, for example, when the locking protrusion 25 of one elastic claw 23 moves from the left locking recess 28C in FIG. The stop protrusion 26 is a mountain-shaped portion 29
As it moves along the slope of also engages with the locking recess 28b.

When sliding the adjustment body 13 in this way, the operation resistance becomes large and the locking force for stopping is once applied strongly, so that the locking protrusion 25 moves into the locking recess 28b.
This is something that should not be crossed carelessly.

Dust from the surface to be cleaned flows into the floor nozzle main body 1 through the suction port 8 and the suction surface 9 extending left and right from this, and then flows from the suction joint 5 → the land contact part 31 → the extension pipe 33. This ranges from vacuum cleaners.

In addition, during the cleaning work, the floor nozzle body 1 can be tilted up and down with respect to the suction joint 5, so even if the angle of the extension pipe 33 changes depending on the worker's posture, the floor nozzle body 1 remains in contact with the surface to be cleaned. This allows for reliable dust suction by maintaining a parallel state.

In each of the above embodiments, the locking recess is provided on the floor nozzle main body side, and the elastic claw is provided on the adjustment body side, but there is no problem even if the installation relationship is reversed.

Effects of the Invention As described above, according to the present invention, it is possible to accurately and easily move the dust collection zone up and down in multiple stages through the adjustment body, thereby changing the suction performance of the floor nozzle. ,
Very easy to use. Further, in particular, the locking pawl and the locking recess can be integrally formed at the same time when the floor nozzle main body and the adjustment body are molded from synthetic resin, so that excellent workability and ease of assembly can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a top perspective view of a floor nozzle showing an embodiment of the present invention;
Figure 2 is a lower perspective view of the same, Figure 3 is a plan view with the upper nozzle member removed, Figure 4 is an exploded perspective view of the main part 9, Figure 5 is a sectional view of the same, Figure 6, FIG. 7 is a sectional view of the adjusting body segment. DESCRIPTION OF SYMBOLS 1...Floor nosing body, 10...Dust suction part, 12...Dust collection belt, 13...Adjustment body, 23, 24... ...Elastic claw, 25, 26...
...Latching protrusion, 281L...28b. 280.30...Latching recess, 29...
Mountain-shaped part.

Claims (1)

[Claims] a floor nozzle main body having a dust suction section; a dust collection band arranged parallel to the dust suction section and movable up and down; It comprises an adjusting body that moves, and an articulating means for the adjusting body, and the articulating means projects from either the adjusting body or its opposing part, and has a locking protrusion formed at each free end. It is composed of a pair of elastic claws and a locking recess formed on the other side and located in the movement locus of the locking protrusion, and one locking recess corresponding to one locking protrusion is formed in plurality, The other locking recess corresponding to the other locking protrusion is formed at the apex of the mountain-shaped portion opposite to the one locking recess excluding both ends of the floor nozzle of the vacuum cleaner.