JPS6115787Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) This proposal relates to a suction device for a working floor.

(Prior art) Conventionally, as this type of floor suction device, for example,
No. 55-1440, a microfilm of the specification and drawings.

This floor suction tool has a rotary brush at the front for cleaning the carpet surface, an electric motor built into the rear part, a tiltable connecting pipe pivoted at the center of the rear part, and a suction tool at the center of the tilting part of the connecting pipe. An elastic means (torsion spring) is provided that biases the front part of the main body in a lifting direction.

Therefore, the force of the torsion spring is always acting on the connecting pipe to make it stand vertically, and the user must operate the electric floor suction device while pushing down the connecting pipe against this spring force. It had the disadvantage of being extremely tiring.

(Problems to be solved by the invention) This invention was made in view of the above points, and the rotatable connecting pipe provided at the rear of the suction device body is rotatable when in use, and is kept upright when stored. The purpose is to improve operability and usability by locking the device.

(Means for Solving the Problems) The present invention includes a rotary brush body driven by an electric motor at the lower suction port, and a pair of movable wheels arranged behind the suction port, which are rotatably connected to the rear of the suction tool body. A foot pedal is provided with a coil spring in a recess formed on the top surface of the main body, and one end is engaged with a cam portion formed on one side of the lower part of the connecting pipe, and the other end is provided with a foot pedal. The device is equipped with an operating lever pivoted by a tension spring in the direction of locking the connecting pipe, and an operating lever that pivots the operating lever in the unlocking direction by the operation of the foot pedal.

(Function) Therefore, the rotary connecting pipe, which is held vertically in a locked state, can be tilted by pressing down on the foot pedal, making it easy to operate the floor suction tool body, and Hold down with your foot and rotate the rotating connecting pipe to make it vertical.It will automatically lock.

(Example) Reference numeral 1 denotes a suction device main body, and a box body 4 is formed by a main body case 2 with an opening at the bottom and a bottom plate 3, and a horizontally long suction chamber 6 having a suction port 5 provided at the front includes a brush 7 and a batter 8. A rotating brush body 9 formed in a spiral shape is rotatably supported. Reference numeral 10 denotes an electric motor disposed near one side of the rear portion of the box body 4, which rotates the rotary brush body 9 via a belt 11. Reference numerals 12 and 12 denote a pair of moving wheels, which are pivotally supported on an axle 13 provided at the rear of the box body 4. Reference numeral 14 denotes a rotary connecting pipe to the vacuum cleaner main body (not shown) which is rotatably supported in a recess 15 formed on the back surface of the main body case 2 between the moving wheels 12, 12. It is connected to an air intake hole 17 formed at the center of the back surface of the suction chamber 6 through a telescopic bellows tube 16. Reference numerals 18 and 18 refer to a pair of rollers protruding from an opening 19 of the bottom plate 3 formed on both sides of the rear side of the suction port 5, and the rollers are supported by a roller pivot shaft supported by a support wall 20 provided on the lower surface side of the main case 2. It is attached to 21.

A cam portion 23 is formed integrally with the support shaft 22 on one side of the lower part of the rotary connecting pipe 14, and the cam portion engages with the tip of the vertical portion 24a of the operating lever 24 pivotally supported on the axle shaft 13. At the same time, the tip of the horizontal portion 24b of the operating lever 24 is urged forward by a tension coil spring 25.

Reference numeral 26 denotes a foot pedal which is biased upward and is disposed in a recess 27 formed on the upper surface of the main body case 2 via a coil spring 28.
A locking plate 30 is screwed to the holder. 31 controls the vertical movement of the foot pedal 26 using the operating lever 24.
This lever is an operating lever that transmits information to the main body case 2.
Support plate 3 attached to boss 32 protruding from the bottom surface of
3, the tip of the vertical portion 31a abuts against the locking plate 30, and the tip of the horizontal portion 31b extends upward through the stepped portion 24c provided on the horizontal portion 24b of the operating lever 24 through the coil spring 25. It is supported to lift it up.

Next, the unlocking operation of the rotary connecting pipe in the above configuration will be explained.

First, when cleaning, when the foot pedal 26 provided on the upper surface of the main body case 2 is stepped on, the support leg 29 is moved downward against the spring 28. As a result of this movement, the operating lever 31 rotates as shown by the two-dot chain line in FIG.
The engagement between the tip of the cam portion 23 and the stepped portion 23a of the cam portion 23 is released. As a result, the locking state of the rotary connecting pipe 14 is released, and the cam portion 23 is slidably guided along the inner circular arc portion 24b of the operating lever 24, so that the rotary connecting pipe 14 is rotated as shown in FIG. It can be tilted freely.

When cleaning is finished, hold the suction tool body 1 with your foot and rotate the rotary connecting tube 14 forward, so that the stepped portion 23a of the cam portion 23 is locked with the tip of the vertical portion 24a of the operating lever 24, and the rotary connecting tube 14 is rotated forward. is in a locked state.

(Effect of the invention) Since the electric floor suction tool according to the present invention is configured as described above, when the foot pedal provided on the top surface of the suction tool body is depressed, the lock of the rotating connecting pipe is released and the connecting pipe is It can be tilted freely, allowing you to use the electric floor suction device without putting strain on your arms.

Furthermore, since the foot pedal is provided on the top surface of the main body, the lock can be easily released.

[Brief explanation of the drawing]

Figure 1 is a cutaway plan view of the bottom plate of the electric floor suction device of the present invention, and Figures 2, 3, and 4 are A of Figure 1.
-A, BB, and CC, and FIG. 5 is a sectional view of the main parts in the unlocked state. 1... Suction tool main body, 14... Rotating connecting pipe, 23
... cam part, 24 ... operation lever, 26 ... foot pedal, 31 ... operation lever.

Claims (1)

[Claims for Utility Model Registration] 1. A rotary connecting pipe is provided at the rear of the suction tool body, which has a rotating brush body driven by an electric motor at the lower suction port and a pair of movable wheels located behind the suction port. A foot pedal provided in a recess formed on the upper surface of the main body via a coil spring;
an actuating lever having one end engaged with a cam portion formed on one side of the lower part of the connecting pipe and pivotally supported in a direction to lock the connecting pipe by a tension spring provided at the other end; and actuation of the foot pedal. An electric suction tool for a floor, comprising: an operating lever for rotating the operating lever in the unlocking direction. 2. The electric floor suction tool according to claim 1 of the registered utility model, characterized in that the movable wheel and the operating lever are coaxially supported.