JPH0449928A - Intake suction piece for electric cleaner - Google Patents

Abstract

PURPOSE:To change projection length of a slide contact arbitrarily and to improve cleaning efficiency and operability by a method wherein a stationary shaft having platelike slide contacts and an outer pipe having slits into which the slide contacts can appear freely are provided and the relative angle of the stationary shaft and the outer pipe is made to be adjustable. CONSTITUTION:A rotor is inserted and held in an outer pipe 10 which is provided with a pair of slits 10a to the longitudinal direction on an outer surface, and a stationary shaft 11 has a pair of groove parts 11a each formed in T-letter to the longitudinal direction and platelike slide contacts 12 which are made of rubber and inserted and fixed in the groove parts 11a. The stationary shaft 11 is provided at an end with an adjustment handle 13 for fixing a mounting angle with respect to the outer pipe 10 and inserted into the outer pipe 10, and further fixed at one end by means of a lid member 14 and at the other end by means of the adjustment handle 13. If the rotor is taken out and the angle of the stationary shaft 11 is changed by operating the adjustment handle 13, projection length of the slide contacts 12 out of the slit 10a of the outer pipe 10 can be adjusted, by which dust removing performance of the slide contacts on a surface to be cleaned and operability are made to be adjustable.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a vacuum cleaner, and particularly to a suction body that is easy to handle and has excellent durability.

[Conventional technology]

As a conventional device, as described in Japanese Patent Application Laid-Open No. 1-259824, a groove is provided in the rotor in the axial direction, and a groove is formed in the groove.
There was one that held a rubber plate-shaped sliding contact piece.

[Problem to be solved by the invention]

However, in the above-mentioned conventional technology, the amount of protrusion of the sliding contact piece from the rotor is a constant value, and when cleaning, the sliding contact piece is There was a problem in that the load applied to the motor fluctuated, making it impossible to produce sufficient rotational speed and torque. Furthermore, if the sliding contact pieces become worn out due to long-term use, it is necessary to replace the entire rotor, which is also uneconomical.

[Means to solve the problem]

The above purpose is to insert into multiple grooves in the longitudinal direction.

a fixed shaft having a substantially flat sliding contact having fixed elasticity; an outer pipe provided on the coaxial outer periphery of the fixed shaft and having a slit at a position where the sliding contact can freely move in and out; A rotor that is coaxial with the outer pipe at both ends and an adjustment knob provided so that the relative angle between the outer pipe and the fixed shaft can be adjusted is rotatably installed inside the rotor, and the rotor is rotated. This can be achieved by providing a rotating means for

[Effect]

The sliding joint fixed in the longitudinal direction to the inner fixed shaft protrudes in the circumferential direction from a slit provided in the outer pipe on the outer periphery of the same axis, which is also provided in the longitudinal direction to match the sliding joint. By changing the relative angle between the fixed shaft and the outer pipe, the amount of protrusion and retraction of the sliding contact from the slit part of the outer pipe can be adjusted. can be adjusted and easily compensate for wear of the sliding contact during use.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 indicates a mouthpiece body, upper case 2. A lower case 3 and a bumper 4 are sandwiched around the outer periphery. 5 is
It is a cover and is detachably fixed to the upper case 2 by a knob 6,6' that slides left and right and an engaging claw part 7. Reference numeral 8 denotes a joint, which is detachably held on the vacuum cleaner body, hose, and extension pipe (not shown). 9 is a rotor, and a drive motor 16.9 is held between the upper case 2 and the lower case 3. It is driven by a belt 17.

The rotor 9 includes an outer pipe 1o having a pair of slits 10a in the longitudinal direction on the outer surface of the pipe, a fixed shaft 11 inserted and held in the outer pipe 10, and a fixed shaft 11 having a T in the longitudinal direction.
A pair of groove portions 11a provided in a letter shape and groove portion 1
It has a flat plate-shaped sliding contact 12 made of an elastic material such as rubber, which is inserted and fixed in 1a.

Furthermore, an adjustment knob 13 is provided at the end of the fixed shaft 11 to arbitrarily fix the attachment angle between the outer pipe 1o and the fixed shaft. The fixed shaft 11 is inserted into the outer pipe 10,
One end is connected to the lid body 14. The other end is fixed with an adjustment knob 13. Further, a gear 14 is provided at the end of the outer pipe 10, and bearings 15 are provided at both ends of the rotor 9.

To explain the operation with the above configuration, when using the suction main body 1, connect the hose and extension pipe to the vacuum cleaner main body,
Connect the joint 8 to the tip of the extension tube.

In this state, by operating the switch on the hand control part of the hose, the suction main body 1 is energized and the built-in drive motor 16 is operated at the same time as the vacuum cleaner main body is being operated.
The rotor 9 rotates via the belt 17. In this state, when the mouthpiece body 1 is brought into contact with a floor surface with piles such as a carpet, the sliding contact 12 of the rotor 9 will tangle with the hairs of the carpet by tapping and brushing the hairs of the carpet. Ta. Separates lint, hair, and dust and sucks it into the vacuum cleaner body.

If the sliding contact 12 becomes worn after long periods of use, remove the cover 5, take out the rotor 9, and operate the adjustment knob 13 to change the angle of the fixed shaft 11. After the sliding contact 12 is made to protrude from the outer pipe 10 and returned to its original unworn state, it can be attached to the mouthpiece body l again and used.

Alternatively, since the amount of protrusion of the sliding contact 12 can be adjusted arbitrarily, if the rotation of the rotor 9 is extremely reduced due to the load condition of the surface to be cleaned, for example, a long pile carpet, the above-mentioned method can be used. By reducing the amount of protrusion of the sliding contact 12 through a similar operation, it is also possible to reduce the load applied to the rotor 9 and ensure the necessary rotation.

Although there are two sliders in this embodiment, as shown in FIG. 4A, even if three or more sliders are used, the slider can be adjusted and the effect will not change.

In addition, in this example, an electric motor was used as the power source for the rotor, but the blades were rotated by air.
It goes without saying that even an air turbine-type suction port that serves as a power source has the same effect.

As described above, according to this embodiment, the following effects can be achieved.

(1) Since the reduction in cleaning effectiveness due to wear of the sliding contact can be compensated for by the adjustment mechanism built into the rotor, it is easy to handle.

(2) Since the amount of protrusion of the sliding contact can be arbitrarily changed, load conditions can be set that match the condition of the surface to be cleaned, so cleaning efficiency can be increased and operability is also good.

〔Effect of the invention〕

According to the present invention, it is possible to provide a mouthpiece with excellent handling and operability.

[Brief explanation of the drawing]

Figures 1 (A) and (B) are a top view and a side view of a mouthpiece according to an embodiment of the present invention, Figure 2 is an exploded perspective view of a mouthpiece according to an embodiment of the present invention, and Figure 3 (I) is an exploded perspective view of a mouthpiece according to an embodiment of the present invention. ). (B) is a sectional view of the rotor, and FIGS. 4(A) and 4(B) are sectional views showing other embodiments of the rotor. DESCRIPTION OF SYMBOLS 1... Suction body, 9... Rotor, 10... Outer pipe, 11... Fixed shaft, 12... Sliding joint, 13... Adjustment knob. Cause (Rono Diagram 2 Diagram 3 (Ino (Rono Diagram (Ino))

Claims (1)

[Claims] 1. A fixed shaft having an elastic, substantially flat sliding contact inserted and fixed into a plurality of grooves provided in the longitudinal direction, and a fixed shaft provided on the outer periphery of the fixed shaft, at a position where the sliding contact can freely appear and retract. A rotor can be rotated, which is composed of an outer pipe having a slit, and an adjustment knob that allows the outer pipe and the fixed shaft to be coaxial at both ends and to adjust the relative angle between the fixed shaft and the outer pipe. What is claimed is: 1. A suction body for a vacuum cleaner, characterized in that the suction body is installed inside the body and has a rotating means for rotating the rotor.