JPS63154145A - Floor suction jig 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 the Invention The present invention relates to a floor suction tool for a vacuum cleaner equipped with a rotating brush that is effective for cleaning carpets.

Conventional technology Conventionally, this type of vacuum cleaner floor suction device was disclosed in Japanese Patent Application Laid-open No. 61
As described in Japanese Patent No. 50637, the configuration shown in FIGS. 6 to 6 was common. That is, 1 is a nozzle body consisting of an upper nozzle member 2 and a lower nozzle member 3, with a suction chamber 4 formed at the front part and a turbine chamber 6 at the rear part. A rotating brush 6 is rotatably held within the suction chamber 4, and has bristles 7 planted on its outer periphery. 8 is an air turbine rotatably held in parallel with the rotating brush 6 in the turbine chamber 5; 9.10 is a connecting hole A, B connecting the suction chamber 4 and the turbine chamber 6; and 11 is a connecting hole A9 that is connected manually. It is a partition plate that opens and closes with the button. Reference numeral 12 denotes a knob connected to the partition plate 11. When the knob is positioned on the turbine chamber 6 side, the partition plate 11 closes the communication hole A9, and the intake air flow flows through the communication hole B1.
o flows into the turbine chamber 6. This causes the air turbine 8 to rotate, which is transmitted by the belt 13 and causes the rotary brush 6 to rotate. Furthermore, when the knob 13 is placed on the opposite side, the communication hole A9 of the partition plate 11 is unblocked, and most of the suction air flows into the turbine chamber 6 through the communication hole A9, and as a result, the air turbine 8 and the rotating The rotation of the brush 6 is stopped.

Problems to be Solved by the Invention However, due to the above configuration, when cleaning a carpet or a carpet, it is necessary to manually position the knob 12 on the turbine chamber 5 side and rotate the rotating brush θ. If you want to clean the tatami surface after that, press knob 1 again.
2, the position of the knob 12 had to be manually changed each time according to the surface to be cleaned.

However, while cleaning, I have to hold the hose connected to the vacuum cleaner and the extension tube that connects the hose to the floor suction device, so I have to bend at the waist to switch between the hoses and the floor suction device. The usability and operability were very poor as you had to pull it close to your hand.

Particularly in the case of vertical type vacuum cleaners that connect the vacuum cleaner body directly to the nozzle body without using a hose, the switching operation must be performed by placing the vacuum cleaner body on the surface to be cleaned, making the switching operation very time-consuming. It was taking a while.

The present invention solves the above-mentioned conventional drawbacks and provides a floor suction tool for a vacuum cleaner that is highly usable.

Means for Solving the Problems In order to solve the above problems, the present invention provides a suction chamber containing a rotating brush, a turbine chamber containing an air turbine, and a connection between these suction chambers and the turbine chamber. a hole, a pedal held slidably in the vertical direction, and a cam connection mechanism that transmits downward displacement applied to the pedal;
A partition plate is connected to the cam connection mechanism and slidably opens and closes the communication hole.

Operation According to the above configuration of the present invention, when the pedal is stepped once with the foot and a downward sliding displacement is applied to the pedal, the cam linkage mechanism operates in response to the displacement of the pedal, and the partition plate is slid. and close the communication hole. Therefore, the suction airflow concentrates on the air turbine and causes it to rotate, so that the rotary brush rotates and the floor suction tool can be switched for cleaning carpets and carpet surfaces. On the other hand, when cleaning tatami mats or floors, press the pedal again and the cam connection mechanism will operate, sliding the partition plate in the opposite direction to unblock the communication hole and opening the air turbine. The rotation of the rotary brush is stopped and the switch is made between folding and flooring, and the rotation of the rotary brush is controlled by stepping on a pedal to improve switching operability.

Example An embodiment of the present invention will be described below with reference to the drawings.

1 to 4, 21 is a nozzle body consisting of an upper nozzle member 22 and a lower nozzle member 23, with a suction chamber 2 in the front part.
4. A turbine chamber 26 is formed at the rear. 26 is a communication hole that communicates the suction chamber 24 and the turbine chamber 26;
2 is a joint rotatably attached to the rear part of the turbine chamber 26, and a connecting pipe 28 that connects to an extension pipe connected to the cleaner body is rotatably attached. A rotating brush 29 is rotatably held within the suction chamber 24, and has bristles 30 spirally arranged around its outer periphery. 31 is communication hole 2
6 is a communication hole that communicates the suction chamber 24 and the turbine chamber 25, and communicates the suction chamber 24 and the connection pipe 28 almost linearly. 32 is a partition plate that selectively opens and closes the communicating hole 26 and the communicating hole 31;
1, it is held by an upper nozzle member 22 and a lower nozzle member 23 so as to be slidable within a certain range in the left-right direction. pedal 33
is rotatably attached to the upper nozzle member 22 using a pedal shaft 34 protruding from the front side surface as a rotation axis.

Reference numeral 35 denotes a lever that contacts an arcuate rib 36 provided inside the pedal 33. When the pedal 33 is stepped on, the arcuate rib 36 rotates around the pedal shaft 34, and is pushed by this to move forward. The front part of the lever 36 is formed into a substantially oval shape,
The inside has a similarly oval lever groove 37. A lever shaft 38 is integrally formed at the front end, and a rotary cam 39 is engaged to be rotatably slidable within a certain range. The rotary cam 39 is a plate-shaped member having a bearing hole 40 at the front that engages with the lever shaft 38, a substantially heart-shaped notch 41 at the center, and a cam shaft 42 at the rear. Reference numeral 43 denotes a rotating plate, which has a mountain-shaped cam groove 44 at the rear that slidably engages with the camshaft 42, a rotating plate protrusion 45 at the front, and a rotating plate hole 46 at the center. There is.

The rotary plate protrusion 46 is rotatably engaged with a bearing 47 formed on the partition plate 32 . 48 is a cam mounting shaft formed from the upper nozzle member 22 and the lower nozzle member 23, and includes the lever groove 37, the notch 41 of the rotary cam 39, and the rotary plate hole 46.
These levers 36, rotating cams 39, rotating plates 4
3 positioning is being performed. 49 is a compression coil spring that always returns the lever 36 and pedal 33 to the pre-stepping position, and 60 is an air turbine built in the turbine chamber 26.
- rotation by the air flow sucked in through the communication hole 26. This rotation is arranged on the opposite side of the turbine chamber 26 from the arrangement position of the cam connecting mechanism consisting of the lever 36, the rotating cam 39, the rotating plate 43, and the compression coil spring 49, and the turbine shaft 51 and the rotating brush 29 are arranged on the opposite side of the turbine chamber 26. The power is transmitted to the rotating brush 29 by a belt 62 stretched across the belt 62 .

Next, the operation and effects of this configuration will be explained.

As shown in FIG. 3(A), the communication hole 26 is now connected to the partition plate 3.
Suppose that it is blocked by 2. At this time, the suction airflow is sucked into the cleaner body through the communication hole 31 that is selectively opened by the partition plate 32, passes through the turbine chamber 26, the joint 27, and the connecting pipe 28.

Therefore, no air flow hits the air turbine 6o,
The air turbine 60 and the rotating brush 29 do not rotate. That is, the nozzle body 21 is set for cleaning floors and tatami surfaces.

Next, when attempting to clean a rug or carpeted surface, the user depresses the pedal 33 once with the tip of his or her foot. The pedal 33 rotates downward about the pedal shaft 34 as a rotation axis,
Push the lever 36 that is in contact with the arcuate rib 36 forward.

At this time, as shown in (B), the cam shaft 42 slides within the cam groove 44, causing the rotating plate 43 to rotate in the A direction around the cam mounting shaft 48. At the same time, the rotary plate protrusion 4 formed on the rotary plate 43
6 slides the partition plate 32 toward the belt 62 side. pedal 3
3, when the lever 36 slides furthest forward to enter the (C) state, the rotary plate 43 rotates the maximum amount in the opposite direction to the (A) state, and the partition plate 32 is rotated to the maximum extent. Maximum sliding displacement is made to the belt 52 side. At this time, the partition plate 32 opens the communication hole 26 and closes the communication hole 31, so that the suction airflow collides with the air turbine 50 and rotates it. This rotation is transmitted to the rotating brush 29 by the belt 52. In other words, it has been switched to carpet and carpet surface cleaning. When the pedal 33 is released, the lever 35 returns to its original state due to the restoring force of the compression coil spring 49. At the same time, the rotating cam 39 also returns to its original state, but at this time the cam shaft 42 passes through the center of the cam groove 44, and the next time the pedal 33 is depressed, it smoothly performs an operation opposite to the above-described operation. Therefore, as described above, the rotation and stop of the rotating brush 29 can be controlled in accordance with the surface to be cleaned, that is, the switching of the nozzle body 21 to the surface to be cleaned can be performed by stepping on the pedal 33. This eliminates the need to bend down or pull the nozzle body 21 toward your hand, greatly improving usability and operability.

Further, since the pedal 33 and the cam connection mechanism are arranged on the opposite side of the turbine shaft 61 with the turbine chamber 26 in between, the space inside the nozzle body 21 can be effectively utilized, and the nozzle body 21 Do not make it unnecessarily long in the front-back direction.

Furthermore, since the cam connection mechanism has a lever 35 and a rotary plate 43 that receive displacement of the pedal 33, the pedal 33
The downward displacement of the partition plate 32 can be converted into the horizontal displacement of the partition plate 32, thus making it possible to switch the rotary set by stepping on the pedal 33.

Effects of the Invention As described above, according to the present invention, a suction chamber containing a rotating brush, a turbine chamber containing an air turbine, a partition plate that slidably opens and closes a communication hole that communicates these, and this partition plate. By having a pedal that applies a sliding displacement to the partition plate and a cam connection mechanism that transmits the displacement of the pedal to the partition plate, the opening and closing of the communication hole for controlling the rotation and stop of the rotating brush in accordance with the cleaning surface can be controlled. This can be done by stepping on a pedal, which greatly improves usability and operability.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a vacuum cleaner according to an embodiment of the present invention when the upper nozzle member of the floor suction device is removed, Fig. 2 is a longitudinal cross-sectional view of the cam connection mechanism installation part, and Fig. 3 is a switching operation. Fig. 4 is a perspective view of a floor suction device; Fig. 6 is a perspective view of a conventional floor suction device;
FIG. 6 is a plan view showing the internal configuration. 24... Suction chamber, 26... Turbine chamber, 26... Communication hole, 29... Rotating brush, 31... Communication hole, 32...Partition plate, 33...Pedal, 36...Lever,
39... Rotating cam, 43... Rotating plate,
50...Air turbine. Figure 4: Regret (/-'! Town

Claims (1)

[Claims] A suction chamber with a built-in rotating brush, a turbine chamber with a built-in air turbine, a communication hole that communicates these suction chambers with the turbine chamber, and a communication hole that can be slidably opened and closed to concentrate airflow to the air turbine. a partition plate for rotating the air turbine; a transmission device for transmitting the rotation of the air turbine to the rotating brush; a pedal for applying sliding displacement to the partition plate; and a pedal for applying sliding displacement to the partition plate; The cam connection includes a lever that changes the downward displacement applied to the pedal into a longitudinal displacement of the floor suction device, a rotary cam that is rotatably fixed to the lever, and a rotating cam that is rotatably fixed to the lever. A floor suction tool for a vacuum cleaner comprising a rotary plate that rotates and slides intermittently within a certain range in response to the rotation of a rotary cam and provides reciprocating sliding displacement to the partition plate.