JPH0616578Y2 - Rotary brush type vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a rotary brush type vacuum cleaner.

[Conventional technology and its problems]

Conventionally, this type of vacuum cleaner has a rotating brush on the lower surface of the vehicle body that rotates in association with the rotation of the wheels. When the vehicle body is pushed and moved forward, the rotating brush rotates in conjunction with the rotation of the wheels. The rotating brush sweeps up the dust on the floor and collects it in the dust box inside the vehicle.

As described above, in the conventional vacuum cleaner, when the vehicle body is moved forward to rotate the wheels, the rotating brush always rotates in contact with the floor surface in association with the rotation of the wheels. You have to press it with a strong force.

Therefore, in the conventional vacuum cleaner, after the cleaning work is completed,
Even when it is returned to the storage place or moved to the next cleaning place, it has to be pushed with a strong force, and much labor is wasted during the movement.

In view of this, the present invention intends to reduce the labor required for moving the vehicle body by enabling the wheel and the rotating brush to be disengaged from each other when cleaning is not necessary, such as when moving.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a rotating brush type cleaner as described above, in which a wheel mounting arm is swingably attached to the vehicle body in the front-rear direction, and the wheel mounting arm is provided with a rotary end. An axle parallel to the drive shaft of the brush is provided,
With the wheels attached to this axle, the drive gear fixed to the axle, the driven gear fixed to the drive shaft of the rotating brush, and the wheel mounting arm rotated forward, the vehicle body descends and the rotating brush comes to the bottom. When the wheels are in contact with each other, the drive gear and the driven gear mesh with each other, and the wheel mounting arm is rotated rearward, the vehicle body rises and the rotating brush separates from the bottom surface, and the drive gear and the driven gear do not mesh. The mounting position of the drive gear and the driven gear was restricted.

[Action]

When you lift the car body with a pusher, the wheels mounted on the wheel mounting arm that can swing back and forth will
When hanging down together with the wheel mounting arm and pulling the vehicle body a little backward in this state, the wheel mounting arm rotates forward and the vehicle body descends so that the rotating brush comes into contact with the bottom surface, as well as the drive gear and driven gear. Meshes with. Therefore, if the pusher is pushed in this state to move the vehicle body to the front side, the rotation of the wheels is transmitted from the drive gear to the driven gear, and the rotating brush rotates in contact with the bottom surface. It is swept up, and cleaning work is performed by this.

On the other hand, when simply moving the vacuum cleaner without performing the cleaning work, hold the pusher and lift the vehicle body upwards.
Hanging the wheel together with the wheel mounting arm to release the meshing condition between the drive gear and the driven gear, push the vehicle body forward as it is, rotate the wheel mounting arm backward to raise the vehicle body, and rotate the brush. Keep away from the bottom. As a result, the movement of the vacuum cleaner when the cleaning work is not performed can be performed extremely lightly.

〔Example〕

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

The vehicle body 1 is composed of a vehicle body 2 and a dust box 3 that is detachable from the vehicle body 2, and the front surface of the vehicle body 2 and the rear surface of the dust box 3 communicate with each other.

A pusher 4 is attached to the upper surface of the vehicle body 2. In addition, a U-shaped frame 5 surrounding the front half of the side surface of the vehicle body 2 and the side surface and front surface of the dust box 3 is fixed to the vehicle body 2, and a front wheel 6 is provided at the center of the lower front surface of the frame 5. Installed.

A rotary shaft 7 is bridged between both side surfaces of the rear end of the vehicle body 2, and a plate-shaped wheel mounting arm 8 is provided at both ends of the rotary shaft 7 projecting outward from both side surfaces of the vehicle body 2. The upper end is fixed, and the wheel mounting arm 8 is swingable with respect to the vehicle body 2.

An axle 9 is rotatably attached to the free end side of the wheel attachment arm 8 so as to be orthogonal to the wheel attachment arm 8, and a wheel 10 is fixed to the end of the axle 9.

A drive gear 11 is fixed to the axle 9. The drive gear 11 has a built-in one-way clutch,
When the axle 9 is rotated by the rotation of the wheel 10, only when the wheel 10 rotates in the forward direction, the axle 9 and the drive gear 1 are rotated.
When the drive gear 11 is rotated in conjunction with 1 and the wheels 10 are rotated so as to move backward, the axle 9 and the drive gear 11 are rotated.
The drive gear 11 does not rotate even if and rotate idle and the axle 9 rotates.

In addition, a drive shaft 12 is provided in parallel with the rotary shaft 7 between both side surfaces of the vehicle body 2 toward the rear. A pair of frame plates 13 are attached to the portions of the drive shaft 12 near both ends via bearings 14.
A rotary shaft 16 is inserted through a bearing 15 in parallel with the drive shaft 12 at a portion closer to the front of 3. Sprockets 17 and 18 are fixed to the drive shaft 12 and the rotary shaft 16 at portions near both ends thereof, and chain belts 19 and 20 are hung on the sprockets 17 and 18, respectively. Brushes 21 are attached to the chain belts 19 and 20 in parallel with the drive shaft 12 and the rotary shaft 16 at predetermined intervals.

The rotary brush 22 has such a structure, and the drive shaft 12
When is rotated, the sprocket 17 is rotated, the chain belts 19 and 20 are rotated, and the brush 21 is rotated in an oval shape.

A mounting shaft 23 is laid between both side surfaces of the vehicle body 2 toward the front, and the dust removing plate 2 is attached to the mounting shaft 23.
The upper part of 4 is rotatably attached, and the lower end surface of the dust removing plate 24 is in contact with the floor surface.

A support plate 25 is attached rearward to both end portions of the mounting shaft 23, and a long hole 26 is formed in a rear portion of the support plate 25. The rotary shaft 16 is formed in the long hole 26. Both ends of are inserted.

A swing plate 27 is swingably attached to a substantially horizontal center inside the vehicle body 2 via a shaft body 28, and a pusher 4 is attached to a portion of the swing plate 27 near the front end. A lower end of a lever 29 provided along the side is attached, and when the lever 29 is pulled up, the swing plate 27 rotates upward with the shaft body 28 as a fulcrum. One end of the rotary shaft 16 is placed on the upper surface of the swing plate 27. As a result, when there is an obstacle on the floor, the lever 29 is pulled up and the swing plate 27 is rotated upward.
Since the rotary shaft 16 in front of is lifted up, obstacles can be avoided. Further, since the dust removing plate 24 is also attached to the rotating shaft 16 via the support plate 25, when the rotating brush 22 is pulled up by the lever 29 as described above, the dust removing plate 24 is also raised.

Next, both ends of the drive shaft 12 of the rotary brush 22 project outward from the side surface of the vehicle body 2, and the driven gear 30 is fixed to the projecting portions. The driven gear 30 includes a disc 31
The chain belt 32 is attached to the outer peripheral surface of the in a ring shape.

The driven gear 30 and the drive gear 11 of the axle 9 mesh with each other while the wheel mounting arm 8 is rotated forward. In this state, the wheel mounting arm 8 hits a stopper 33 provided on the side surface of the vehicle body 2 and is prevented from rotating in the forward direction. On the contrary, when the wheel mounting arm 8 is rotated backward, the driven gear 30 and the axle 9 are rotated.
The meshing state with the drive gear 11 is released. In this state, the wheel mounting arm 8 hits the stopper 34 on the side surface of the vehicle body 2 and is prevented from rotating rearward. Also,
The engagement position between the stoppers 33, 34 and the wheel mounting arm 8 is such that when the wheel mounting arm 8 is rotated rearward, the wheel 10 is rotated as shown in FIG. , The wheel mounting arm 8 is rotated rearward so that the vehicle body 1 is levitated and the brush 21 of the rotating brush 22 is separated from the floor surface.

A side brush 35 is provided on one front side of the vehicle body 1 so as to be capable of undulating via a mounting arm 36. The side brush 35 is the drive shaft 12 of the rotary brush 22.
A pulley 37 and a drive belt 38 fixed to one side of the shaft rotate in conjunction with the rotary brush 22.

Next, when performing the cleaning work using the vacuum cleaner configured as described above, first, the vehicle body 1 is slightly lifted, the wheel mounting arm 8 is rotated forward, and the driven gear 30 and the drive gear 11 are rotated. Mesh.

In this state, when pushing the pusher 4 to move the vehicle body 1 forward,
The wheel 10 rotates, the rotation is transmitted to the drive gear 11, and the driven gear 30 is rotated by the drive gear 11. When the driven gear 30 rotates, the drive shaft 12 of the rotating brush 22 rotates, and the chain belts 19 and 20 rotate the brush 21 while contacting the floor surface. As a result, dust on the floor surface is swept up and is collected in the dust box 3 along the dust removing plate 24.

On the other hand, in the case where the cleaner is simply moved without performing the cleaning work, when the wheel mounting arm 8 is rotated rearward until it comes into contact with the stopper 34, the rotary brush 2
The driven gear 30 of No. 2 and the drive gear 11 of the axle 9 are disengaged from each other, and the vehicle body 1 floats upward to separate the brush 21 of the rotating brush 22 from the floor surface, which reduces the ground resistance. With this, the vehicle body 1 can be lightly pushed.

[Effect of device]

According to the present invention, as described above, only when the cleaning work is performed, the drive gear and the driven gear for transmitting the rotation of the wheel to the rotating brush are engaged with each other, and the rotating brush is brought into contact with the bottom surface to perform the cleaning work. When not performing, the drive gear and the driven gear do not mesh with each other to prevent the rotating brush from rotating, and the vehicle body is lifted to separate the rotating brush from the bottom surface so that the cleaner moves extremely lightly. This has the effect of significantly reducing the effort required when moving.

[Brief description of drawings]

FIG. 1 is a perspective view of a rotary brush type vacuum cleaner according to the present invention,
2 is a vertical side view of the same, FIG. 3 is a transverse plan view of the same, and FIG. 4 is a sectional view of a wheel portion of the same. 1 ... Body, 2 ... Body body, 3 ... Dust box,
8 ... Wheel mounting arm, 9 ... Axle, 10 ... Wheel,
11 ... Drive gear, 12 ... Drive shaft, 21 ... Brush,
22 ... rotating brush, 30 ... driven gear.

Claims (1)

[Scope of utility model registration request] 1. A rotary brush type vacuum cleaner in which a rotary brush is provided on a lower surface of a vehicle body having a pusher, and the rotary brush sweeps up dust on a floor surface to collect dust in a dust box in the vehicle body. Is swingable back and forth, an axle parallel to the drive shaft of the rotating brush is provided on the free end side of this wheel mounting arm, the wheel is attached to this axle, and the drive gear is fixed to the axle. With the driven gear fixed to the drive shaft and the wheel mounting arm rotated forward, the vehicle body descends, the rotating brush contacts the bottom surface, the drive gear and driven gear mesh, and the wheel mounting arm moves backward. In the state where the drive gear and the driven gear are rotated, the mounting position of the drive gear and the driven gear is regulated so that the vehicle body rises and the rotating brush separates from the bottom surface and the driving gear and the driven gear do not mesh with each other. Rotating brush cleaner to symptoms.