JPH0728849B2 - Battery-powered rotary brush device for floors - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a brush, a sponge brush, a felt brush, a cloth brush, or
The present invention relates to improvement of a rotary brush device for a floor, which is used as a floor cleaning machine or a floor polishing machine, such as a brush in which an abrasive is attached to each brush.

[0002]

2. Description of the Related Art A rotary brush device for a floor of this type is equipped with a rotary brush at the lower end of a vertical rotary shaft driven by an electric motor, and the rotary brush itself receives ground pressure during operation. Since the entire apparatus is grounded and supported, the weight of the apparatus is used to increase the pressing force against the floor surface so that the polishing action can be performed efficiently.
And as the rotary brush for this floor, conventionally, the following [1]
, [2] are known. [1] A structure in which a power supply cable from an external power supply is connected to the electric motor mounted on the main body, and a rotary brush is attached to the lower end of the vertical rotation shaft of the electric motor to drive the rotation. [2] A battery is mounted on the main body, and the electric power of the battery is supplied to an electric motor to drive the rotating brush. As shown in FIG. 8, a plurality of batteries are individually attached to the main body. Mechanically fixed connection, and
By connecting each battery in series with a connecting cord and further connecting the battery to the motor control device with a connecting cord, a plurality of batteries are used as a power supply source.

[0003]

As in the conventional structure described in the above [1], in the rotary brush which is used by connecting the power feeding cable, the working range is limited to the range reached by the power feeding cable and the working is limited. There was the inconvenience that the cables were entangled during the process and the work marks were stained. Further, according to the conventional structure described in [2] above, although the problems associated with the use of the cable as in the case of [1] above are solved, the work of mounting and mounting the battery on the main body when attaching and detaching the battery It is necessary to perform both the work of each battery, or the work of electrically connecting the batteries and the control device on the main body side, and this series of battery replacement work is complicated. It is an object of the present invention to facilitate battery replacement work when constructing a floor rotating brush device using a battery as a power supply source without using the above-mentioned power supply cable.

[0004]

Means for Solving the Problems The technical means of the present invention, which has been devised in order to achieve the above-mentioned object, is an electric motor for driving the rotating brush, and a control device for the electric motor, in a main body on which the rotating brush is mounted. Also, in a floor rotary brush device having a power supply unit, the electric motor and the rotary brush are arranged in the central portion of the main body, and the power supply unit is provided on the main body side and A battery device detachably attached to the supply unit, and the battery device includes a plurality of batteries and a battery case that is located on both sides of the electric motor and has the battery therein. Configure and
In the battery case, contact terminals electrically connected to the built-in battery are provided so as to be exposed to the outside of the case. For the same purpose, the supply target portion, a fixing means for the battery device,
A connection terminal may be provided that is automatically connected to a contact terminal of the battery device when the battery device is in a predetermined fixed position.

[0005]

The operation of the above technical means is as follows. That is, as the battery device is attached / detached to / from the main body, the conductive connection point is inevitably interlocked, so that the connection and disconnection work of the battery and the control device each time they are attached / detached can be omitted, and the battery can be omitted. It is possible to promote simplification of the attachment / detachment work. In addition, the battery case is installed with a plurality of batteries distributed on both sides of the electric motor, and the wiring is omitted and the placement balance of each battery around the brush rotation axis is appropriate. It can be installed by setting to.

[0006]

As described above, according to the present invention, the work can be performed without restricting the work range and lowering the workability as in the case of using the power supply cable, but it is possible to perform the work as in the conventional case. In comparison with the structure in which each battery is individually mounted, there is an advantage that the battery mounting and dismounting work can be greatly simplified. Moreover, by using a battery device with a battery case, it is possible to easily attach and detach even when using multiple batteries, and the battery can be arranged in a well-balanced manner with respect to the brush rotation axis. At this time, it is possible to prevent the rotating brush from being largely shaken due to the loss of the rotational balance.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, a floor rotary brush device to which a battery attaching / detaching structure of the present invention is applied includes a rotary brush 1 that is rotationally driven around a vertical axis, and an electric motor 3 that drives the rotary brush 1. The control handle 5 is attached to the main body 2 including the control device 4 of the electric motor 3, and the power supply part 7 is provided in the cover 6 on the upper part of the main body 2. There is.

The steering handle 5 has a grip operating portion 5
A switch 8 for entry is provided near A in the front side in the traveling direction, and a switch that can be grasped and operated while holding the control handle 5 is provided just beside one of the grips. An operating grip lever 9 is provided. Further, the root side is connected and fixed to the main body 2, and the intermediate portion is connected and fixed to the mounting member 11 of the grounding wheel 10 provided on the rear portion of the main body 2 via the link member 12, When the steering handle 5 is largely rotated to the arrow A side, the grounding wheel 10 comes into contact with the ground and the rotating brush 1 is floated and can be moved without contacting the floor surface.

The power supply unit 7 is composed of a supplied portion 14 provided on the main body 2 side and a battery device 13 which is detachably attached to the supplied portion 14. As shown in FIGS. 2 and 4, the battery device 13 includes a case body 16 having a side view portal type outer shape.
Of the contact terminals 1 which is open at the upper surface side of which the lid 17 can be swingably opened and closed and which is exposed to the outside at one lateral portion.
The battery case 15 is provided with a battery case 15, and a battery 21 installed inside the battery case 15. Furthermore, a part of the conductive wire 19 connected to the contact terminal 18 is extended in one side wall of the case main body 16 in an embedded state, and an extended part from near the upper end of the side wall is inside the case main body 16. Clip metal fitting 20 that has a length such that each terminal 21a of both batteries 21 located at
have.

As shown in FIG. 1 to FIG. 3, the supplied portion 14 for accommodating the battery device 13 is located at the inner rear portion of the fixed frame 22 whose front side is open, that is, the inner rear portion, and the battery device. 13 is provided with a pair of connection terminals 24 that come into contact with the contact terminals 18 of the terminal 13, and a locking piece 23 made of a leaf spring material is provided at the entrance side of the supplied portion 14 as a fixing means for the battery device 13. As shown by a solid line in FIG. 3, the light source 3 is provided in a free state and slightly biased toward the center of the supplied portion 14. As a result, in the state in which the battery device 13 is housed, the end portion on the inlet side is fixed by the locking piece 23 so as not to come off, and at this position, the contact terminal 18 of the battery device 13 is supplied to the supplied portion 14. It is configured to be kept in contact with the connection terminal 24 of.

The control device 4 of the electric motor 3 is supplied with electric power from the battery 21 via the connection terminal 24 provided in the supply target portion 14, and the switch 8 for turning on / off the steering handle 5, In addition, the operation of the electric motor 3 is controlled by receiving a signal from the gripping lever 9 for cutting operation. That is, when the on / off switch 8 is turned on, the electric motor 3 is activated and the electric power supply to the electric motor 3 is immediately cut off when the turning operation grip lever 9 is held.

[Other Embodiments] The present invention is not limited to the above-described embodiments, but may be carried out as follows. [1] As shown in FIGS. 5 and 6, of the supplied portion 14 and the battery device 13 that constitute the power supply portion 7, the supplied portion 14 is configured as follows. That is, there is no equivalent to the fixing frame 22 for fixing the entire battery device 13 in the housed state as in the above-described embodiment, and it is provided on the upper surface side of the main body 2 near the four corners of the mounting portion of the battery device 13. The main body side first fixing tool 25, the main body side second fixing tool 27 provided on the main body upper surface side corresponding to the lower position of the front side center position of the battery device 13, and near the lower surface side four corners of the battery device 13. Fixing means including a battery-side first fixture 26 provided and a battery-side second fixture 28 provided at a central position on the front surface side of the battery device 13, and the contact terminal 18 of the battery device 13 is inserted on the upper surface side of the main body 2. It is composed of a connection terminal 24 connected to the state.

Then, each of the fixing members 25, 26, 27,
As shown in FIGS. 5 to 7, the main body side first fixture 25 is attached with the central portion thereof slightly raised from the attachment surface, so that the battery side first fixture 25 is attached to the attachment surface. A fixing piece 25a that forms an engagement space 29 that can be held when a part of the fixing tool 26 is inserted, and a guide groove 30 that slides and guides the battery-side first fixing tool 26 in the engagement / disengagement direction, In addition, a protrusion 25b that protrudes forward is formed at the center front end of the fixing piece 25a so as to engage with the engagement space 29 that is also formed in the battery-side first fixture 26. I am doing it. The battery side first fixing tool 26 is formed in the same shape as the main body side first fixing tool 25, and the main body side first fixing tool 25 and the main body side first fixing tool 25 are provided on the lower surface side of the case body 16 of the battery case 15. Are mounted upside down.
Further, the main body side second fixing tool 27 is a mere recessed portion, and the battery side second fixing tool 28 is a drop rod that is engaged with the recessed portion. And this drop stick pick 2
By grasping 8a and lifting it upward, the second fixtures 27 and 28 are disengaged from each other, and by pushing downward, the horizontal movement of the entire battery device 13 can be restricted, and the first fixture is fixed. The engagement state between the tools 25 and 26 is maintained.

The battery device 13 according to this embodiment
The battery case 15 containing the battery 21 is formed in a rectangular box shape, and is formed on the upper side of the case body 16 on the bottom side.
The box-shaped lid 17 having an open lower side is configured to be integrated in an externally fitted state. And the case body 1
6, the contact terminal 18 for the connection terminal 24 of the supplied portion 14 is provided on the rear surface side (the front side in the engagement direction in the engagement direction of the battery side first fixture 26), and The battery side second fixture 28 is provided on the front side.
Further, an opening 31 having a diameter larger than the outer diameter of the electric motor 3 is formed at the center position of the lower surface of the electric motor 3. The battery device 13 is slidable in the front-rear direction due to the engagement of the above. Further, in this embodiment, when the battery device 13 is mounted, the battery case 15 completely covers the electric motor 3, so that the cover 6 as shown in the above embodiments can be omitted.

[2] The battery device 13 includes two batteries 21.
However, the battery 21 may include three or more batteries or one battery 21. [3] The battery device 13 includes one that is not provided with a case and is composed only of the battery 21, and in this case, the terminals of the battery 21 form the contact terminals 18, which are for connecting the supply target portion 14. The supply target portion 14 may be configured so as to be connected so as to be in contact with the terminal 24. [4] The locking piece 23 of the supplied portion 14 is not limited to the one that elastically locks the battery device 13, and the battery device 13
Any structure may be used as long as it can be correctly attached to the predetermined position. [5] As the rotary brush device for the floor, a steering handle 5 is used.
It is not limited to a manually operated type equipped with a.

It should be noted that reference numerals are added to the claims for facilitating the comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing an entire floor rotary brush device to which a battery attaching / detaching structure of the present invention is applied.

FIG. 2 is a partially cutaway front view showing the entire floor rotating brush device to which the battery attaching / detaching structure of the present invention is applied.

FIG. 3 is a partially cutaway plan view showing a main part of a battery attaching / detaching structure.

FIG. 4 is a perspective view showing a battery device.

FIG. 5 is a partially cutaway side view showing another embodiment of the floor rotating brush device to which the battery attaching / detaching structure of the present invention is applied.

FIG. 6 is a partially cutaway plan view showing another embodiment of the floor rotating brush device to which the battery attaching / detaching structure of the present invention is applied.

FIG. 7 is a sectional view showing a section taken along the line aa in FIG.

FIG. 8 is a partially cutaway front view showing the entire floor rotary brush device having a conventional battery attaching / detaching structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 rotating brush 2 main body 3 electric motor 4 control device 7 power supply unit 13 battery device 14 supplied unit 15 battery case 18 contact terminal 24 connection terminal

Claims (2)

[Claims] 1. A body (2) for mounting a rotating brush (1)
And an electric motor (3) for driving the rotating brush (1)
And a control device (4) for the electric motor (3), and a rotary brush device for a floor, comprising a power supply (7), the electric motor (3) and the rotary brush (1)
Is disposed in the center of the main body (2), and the power supply section (7) is provided on the main body (2) side.
4) and a battery device (13) detachably attached to the supply target portion (14) , and
The battery device (13) of the
1) and the electric motor (3) on both sides
Battery case with built-in battery (21)
(15) and the battery case (15)
Is electrically connected to the built-in battery (21).
The exposed contact terminals (18) are exposed to the outside of the case.
Battery-powered rotating brush equipment for floors equipped in
Place 2. The battery is provided on the supply target portion (14).
Fixing means for battery device (13) and battery device
Battery device with (13) in a fixed position
Connection automatically connected to the contact terminal (18) of (13)
The battery according to claim 1, further comprising a terminal (24) for
-Drive type rotary brush device for floor .