JP2001010292A - Device for wiping blackboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conduct a wiping work for erasing a written item on a surface of a blackboard even when a moving base on which a wiping member or a wiper member is placed is to be moved in a rightward or leftward direction of the blackboard. SOLUTION: This device for wiping a blackboard comprises a wiper member 240 rotatable around a wiping member 230 rotatably placed on a moving base 201 moving in a lateral direction of the blackboard. The member 240 is rotated in response to the wiping work of a surface 111 of the blackboard while moving the base in a rightward or leftward direction to selectively move the member 240 to right or left side of the member 230.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiping device for erasing written matters, such as letters, numerals, figures, symbols, etc., written on a blackboard surface with chalk (chalk) or the like.

[0002]

2. Description of the Related Art In order to erase written matters written in black ink on the surface of a blackboard, a blackboard wiping member having a cloth wiping surface is used, and the blackboard surface is wiped with the blackboard wiping member. Has been done to

However, when the blackboard surface is wiped with the blackboard wiping member to erase the written matter on the blackboard surface, there is an inconvenience that chalk powder scatters around.
Further, the scattering of the black ink powder also occurs when the wiping surface of the blackboard wiping member is knocked in order to remove the black ink powder attached to the wiping surface.

Further, the surface of the blackboard has a certain degree of roughness in order to prevent the black ink from slipping, and the fine concave portions are liable to be clogged with the black ink powder. For this reason, even if the blackboard surface is wiped using the blackboard wiping member, there is often an inconvenience that the written matter on the blackboard surface cannot be sufficiently erased.

A device for wiping a blackboard for solving such inconveniences has already been proposed in JP-A-8-1133000 and JP-A-9-193599.

In the wiping devices proposed in these publications, a roll-shaped wiping member having an outer peripheral portion formed by a brush, a sponge, or the like is provided on a movable base movable in the lateral direction of the blackboard, on the surface of the blackboard at the axis thereof. It is mounted so that the core is oriented in the vertical direction of the blackboard, and is rotated around the axis while sliding its outer peripheral portion against the surface of the blackboard. The moving base is provided with cleaning liquid supply means for supplying a cleaning liquid such as water near a contact point between the surface of the blackboard and the wiping member, and one of the right and left sides of the wiping member, for example, the left side of the blackboard. A wiper member (scraper) made of a rubber material or the like, which slides on the surface and extends in the vertical direction of the blackboard, is mounted. Further, the moving base includes:
On the left side of the wiper member, a blower for blowing warm air to the surface of the blackboard is mounted.

The wiping operation for erasing the written matter on the blackboard surface by the wiping device is performed as follows. That is, the wiping member, whose outer peripheral portion is in sliding contact with the surface of the blackboard, is rotated (the surface of the blackboard is rubbed by the wiping member), and the cleaning liquid is supplied by the cleaning liquid supply means to the vicinity of the contact point between the wiping member and the surface of the blackboard. Meanwhile, by moving the moving base together with the wiping member and the like from the left end side of the blackboard toward the right end side,
The written matter on the blackboard surface is peeled off from the blackboard surface and washed away. Further, at this time, the wiper member that slides on the surface of the blackboard by following the wiping member from behind with the movement of the moving base with the wiping member including the cleaning liquid adhering to and remaining on the surface of the blackboard including black ink powder and the like. The cleaning liquid on the blackboard surface is dropped on a tank provided below the moving base by wiping. Further, hot air is blown to the surface of the blackboard wiped by the wiper member with a blower moving with the movable base behind the wiper member, thereby evaporating water remaining on the surface of the blackboard and drying the surface of the blackboard. As described above, the work of wiping the blackboard surface is performed from the left end side to the right end side of the blackboard, and the written matter on the blackboard surface is erased.

The moving base moves to the right end of the blackboard,
After the wiping operation by the wiping device is completed, the movable base is moved back together with the wiping member toward the standby position on the left end side of the blackboard in preparation for the next wiping operation. In this case, in Japanese Unexamined Patent Publication No. 9-193599, the wiping member is separated from the surface of the blackboard at the time of the backward movement. In any of the above publications, the wiper member is always in sliding contact with the surface of the blackboard.

According to such a wiping device, it is possible to solve the inconvenience of using the blackboard wiping member.

However, in such a conventional wiping apparatus, when the right side of the blackboard is the forward direction and the left side is the backward direction, the written matter on the blackboard surface is erased only when the moving base is moved in the forward direction. Wiping work cannot be performed. For this reason, when the wiping operation is performed by the wiping device, the user performs the wiping operation of the blackboard until the moving base of the wiping device completes one reciprocating movement, that is, while moving the moving base in the outward direction. After this operation, writing on the blackboard cannot be performed until the movable base moves back in the backward direction and returns to the standby position, and it is necessary to wait during this reciprocation. There is.

Further, each time the wiping operation is performed, the moving base is reciprocated once in the lateral direction of the blackboard, so that the operation time of the wiping device is lengthened, and the device life is likely to be shortened.

In the wiping device, since the wiper member is always in contact with the surface of the blackboard, the following inconvenience arises. That is, when the use of the wiping device is not performed for a long period of time, the contact point between the wiper member and the surface of the blackboard is maintained in a dry state for a long period of time. It is easy for the contact portion to stick to the surface of the blackboard. In such a case, when the wiping device is later operated to perform the wiping operation, the coating layer formed on the surface of the blackboard is peeled off by the wiper member moving along with the moving base, and the blackboard is damaged. May occur.

Further, in the wiping device, when the moving base is returned to the standby position after the wiping operation is completed, the wiper member slides on the surface of the dry blackboard. There is also a disadvantage that the surface is easily worn.

Further, in the wiping device, even if there is only a written matter on a part of the surface of the blackboard, the wiping operation is performed over substantially the entire surface from the left end to the right end of the surface of the blackboard. The time during which the sliding and the wiping member are slid and rotated becomes unnecessarily long, which tends to cause deterioration, and also has the disadvantage that the life of the apparatus is likely to be shortened. Furthermore, since it wipes over almost the entire surface of the blackboard,
It is impossible to cope with a case where a part of the written matter on the blackboard surface is to be erased. And in this case, even if the movable base can be moved from the standby position to a desired position where the wiping operation is to be started, since the wiper member is in sliding contact with the blackboard surface, There arises a disadvantage that the written matter to be left is scraped off by the wiper member.

[0015]

SUMMARY OF THE INVENTION The present invention has been made in view of such a background, and it is possible to move a moving base on which a wiping member or a wiper member is mounted in either direction of the left and right sides of the blackboard. An object of the present invention is to provide a blackboard wiping device capable of performing a wiping operation for erasing a written matter.

Further, the blackboard can prevent the wiper member and the blackboard surface from being worn when the wiper member or the wiper member is moved after the wiping operation is completed. It is an object of the present invention to provide a wiping device.

Still another object of the present invention is to provide a wiping device for a blackboard capable of performing a wiping operation for erasing only a part of the written matter on the surface of the blackboard.

[0018]

In order to achieve the above object, a wiping device for a blackboard according to the present invention comprises: a moving base supported on the blackboard so as to be able to run and stop in the lateral direction of the blackboard; Is mounted on the moving base so as to be rotatable around the longitudinal axis of the blackboard while sliding the outer peripheral portion of the moving base, and during the wiping operation for erasing entries on the surface of the blackboard, the moving base is rotated while performing the wiping operation. And a substantially roll-shaped wiping member that is moved in the lateral direction of the blackboard, and a contact point between the wiping member and the surface of the blackboard, which is provided with a cleaning liquid that is used to wash off written matter that is separated from the surface of the blackboard due to rotation and movement of the wiping member. Cleaning liquid supply means for supplying the cleaning liquid to the vicinity, and the wiping member moving with the movable base to wipe off the cleaning liquid supplied by the cleaning liquid supply means and adhering to the surface of the blackboard; And a wiper member provided with a wiper member mounted on the movable base so as to slide on the surface of the blackboard, wherein a position where the wiper member slides in contact with the surface of the blackboard on the left side of the wiper member and the wiper member On the right side of the blackboard surface and selectively movably mounted on the movable base, at the time of the wiping operation,
A moving operation of the wiper member so as to move the wiper member to the rear side of the wiping member on the left and right sides of the wiping member that moves in the left or right direction together with the moving base and to make sliding contact with the surface of the blackboard. Operation control means for performing the operation.

According to the apparatus of the present invention, when the wiping operation is performed while moving the movable base in the right direction, the wiper member moves to the left of the wiping member rotating while sliding on the surface of the blackboard. The wiper member slides on the surface of the blackboard to which the cleaning liquid has adhered and slides rightward following the wiping member from behind. Further, when performing the wiping operation while moving the moving base to the left, the wiper member is moved to the right side of the wiping member that rotates while sliding on the surface of the blackboard, and slidably contacts the surface of the blackboard. The wiper member slides leftward on the surface of the blackboard to which the cleaning liquid has adhered, following the wiping member from behind. Thus, the wiping operation can be performed regardless of whether the moving base is moved in the left or right direction. In addition, since the wiping operation can be performed regardless of whether the moving base is moved in any direction, it is not necessary to move the moving base back in preparation for the next wiping operation after the wiping operation is completed. . For this reason, the operating time of the wiping device can be minimized and the life of the device can be improved.

In the wiping device of the present invention, the operation control means causes the wiper member to contact the surface of the blackboard only during the wiping operation, and separates the wiper member from the surface of the blackboard when the wiping operation is stopped. Preferably, the movement operation of the wiper member is performed.

In this manner, even when the wiping operation by the wiping device is not performed for a long period of time, it is possible to prevent the wiper member from sticking to the surface of the blackboard.

In this case, it is preferable that the operation control means includes means for moving the movable base to a position specified by a user when the wiping operation is stopped.

According to this, it is possible to start the wiping operation from a desired position in the lateral direction of the blackboard, so that the wiping operation of the portion which does not need to be performed on the surface of the blackboard is avoided, and the wiping operation of the surface of the blackboard is avoided. Partial wiping can be performed. As a result, the operating time of the device for the wiping operation can be kept to a minimum and the life of the device can be improved. In addition, at this time, since the wiping operation can be performed by moving the moving base in any of the left and right directions, the moving of the moving base to a desired position at which the wiping operation is started can be performed in the shortest distance. Work can be started quickly. Further, when the movable base is moved before the start of the wiping operation, the wiper member is separated from the surface of the blackboard, so that the wiper member and the surface of the blackboard can be prevented from being worn.

According to the present invention in which the movable base can be moved to a desired position as described above, the wiping member is further mounted on the movable base so as to be able to contact and separate from the surface of the blackboard. It is preferable that the apparatus further comprises means for moving the wiping member away from the surface of the blackboard when the moving base is moved to at least a position specified by the user.

According to this, when the movable base is moved to a desired position, not only the wiper member but also the wiping member is separated from the surface of the blackboard.
Wear and deterioration of the wiping member can also be prevented.
In addition, when the moving base is moved to a desired position, both the wiper member and the wiping member are separated from the surface of the blackboard. Therefore, when the moving base is moved, the surface of the blackboard through which the wiper member and the wiping member pass. Is not rubbed, and the written matter on the surface of the blackboard at the passing portion can be left as it is. Therefore, it is possible to perform a wiping operation to erase only a part of the written matter on the blackboard surface.

In the wiping device of the present invention, more specifically, the wiper member is provided so as to be rotatable independently of the wiping member around the same axis as the rotation axis of the wiping member. The means causes the wiper member to move to the left and right and to move the wiper member toward and away from the blackboard surface by rotating the wiper member.

By doing so, it is possible to move the wiper member to the left and right of the wiping member with a relatively simple mechanism.

Further, in particular, in a case where the wiping member is separated from the surface of the blackboard when the movable base is moved to a position designated by the user, for example, in the case where the wiping member is separated from the surface of the blackboard, The wiping member is disposed on the movable base so as to be integrally movable toward and away from the surface of the blackboard while being spaced apart from each other in the longitudinal direction of the blackboard. A pair of movable members rotatably supporting upper and lower ends of the wiping member so as to contact and separate the wiping member, and the upper and lower shaft portions of the wiping member are independently and integrally rotatable independently of the wiping member. And a pair of rotating members to which the wiper member is attached so that the rotation causes the wiper member to rotate around the wiping member around the outer periphery of the wiping member. The operation control means causes the wiper member to move to the left and right by the rotation operation of the rotating member and to move the wiper member toward and away from the blackboard surface, and to move the pair of movable members forward and backward. This causes the wiping member to move toward and away from the surface of the blackboard.

With this configuration, a mechanism for moving the wiper member to the left and right of the wiping member, moving the wiper member toward and away from the blackboard surface, and moving the wiper member toward and away from the blackboard surface is provided. It can be simple.

Further, in the wiping device of the present invention, a right-side blower capable of blowing air to the blackboard surface on the right side of the wiper member moved to the right of the wiping member, and a wiper member moved to the left side of the wiping member are provided. A left blower capable of blowing air to the left blackboard surface is mounted on the movable base, and the operation control means slides on the blackboard surface following the wiping member of the right and left blowers during the wiping operation. Means is provided for performing a blowing operation of a blower capable of blowing air to the surface of the blackboard behind the moving wiper member.

According to this, at the time of the wiping operation, even if the movable base is moved in any of the left and right directions, the movable base is wiped by the wiper member by one of the right and left blowers. By sending air to the surface of the blackboard, even if the cleaning liquid remains on the surface of the blackboard without being completely wiped off, it can be immediately evaporated to dry the surface of the blackboard.

In this case, the air blown to the surface of the blackboard may be at room temperature, but may be heated by a heater or the like, if necessary.

Preferably, the wiper member is made of a rubber material having a coating layer formed of a synthetic resin polymer on an outer surface which is in contact with the surface of the blackboard, in order to ensure durability, wiping performance and the like. is there.

[0034]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIGS.
This will be described with reference to FIG. FIG. 1 is a front view schematically showing the overall configuration of the blackboard wiping device of the present embodiment, FIG. 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 is a sectional view taken along line III-III of FIG. Is a cross-sectional view taken along the line IV-IV in FIG. 3, and FIG. 5 is an explanatory diagram showing an operation panel and a controller for performing operation control of the apparatus of the present embodiment. 2 to 4, some components are omitted for convenience of description.

Referring to FIGS. 1 and 2, 100 is a blackboard,
Reference numeral 200 denotes a device for wiping the blackboard 100.

The blackboard 100 is composed of a rectangular plate font 110 constituting its main body, and a blackboard frame 120 supporting the plate font 110. The board typeface 110 is
Formed of steel or synthetic resin material, its surface 1
11 (hereinafter referred to as a blackboard surface 111) can be written with characters, figures, and the like using black ink (chalk) or the like. The blackboard frame 120 is attached to the plate font 110 so as to surround the outer peripheral edge of the plate font 110.
Is supported in a vertical position.

The wiping device 200 is moved in the lateral direction (left and right direction) of the blackboard 100 via the traveling guide means 130 shown in FIG.
Moving body 201 supported by the blackboard 100 so as to be movable
It has.

The moving base 201 has a substantially rectangular parallelepiped outer casing 210 whose main part extends vertically toward the blackboard surface 111 and opens toward the blackboard surface 111.
And a plate-like upper support frame 211a and a lower support frame 211b which are fixed vertically on the inner surface of the outer casing 210, and the portions of the support frames 211a and 211b closer to the blackboard 100 are respectively The blackboard surface 1 so that it exists above and below the blackboard 100
11 side.

The blackboard 10 is provided so that the movable base 201 can be moved.
The traveling guide means 130 supported by the blackboard frame 12
The rack 131a and the guide groove 132a are provided on the rear and upper surfaces of the upper frame 0 so as to extend over the entire length in the left-right direction, and mesh with the rack 131a so as to be rotatable on the upper support frame 211a. The pinion 131b that is pivotally supported and the blackboard frame 12 along the guide groove 132b
0 so that the upper surface of the upper support frame 211a can roll freely.
And a guide roller 132b attached to the guide roller 132b.

With this configuration, the movable base 201 is provided with a guide roller 132 that can roll along the guide groove 132a.
It may be supported by the blackboard 100 via b through the horizontal direction so as to be freely movable. The movable base 201 is driven in a clockwise direction or a counterclockwise direction by a driving mechanism described later to rotate the pinion 131b meshed with the rack 131a, so that the moving base 201 moves in the lateral direction (left and right direction) of the blackboard 100.・ Can be stopped.

In this embodiment, the moving base 20
In order to control the self-running / stopping operation by the controller 270 described later, as shown in FIG. 1, position detection for detecting the state where the moving base 201 has moved to the right end and the state where the moving base 201 has moved to the left end. Means 140 are provided.

The position detecting means 140 includes contact members 141a provided on the left and right ends of the upper frame of the blackboard frame 120, and the outer casing 2 of the movable base 201, respectively.
And a limit switch 141b that is provided on each of the upper and lower side surfaces of the upper portion 10 and outputs an electric signal when it comes into contact with the contact member 141a. And
The detection signal output from the limit switch 141b is
In order to control the self-running / stopping operation of the moving base 201 as described later, the moving base 201 is sent to a controller 270 described later. In addition, as the position detecting means 140, an optical sensor, a micro switch, a contact sensor, or the like can be used in addition to the above-described limit switch 141b.

The wiping apparatus 200 provided with the moving base 201 as described above further includes a wiping member 230, a wiper member 240, a wiping member assembling mechanism 220, a wiper member assembling mechanism 280, and a cleaning liquid supply means 250 described below. , A blower 260, and a controller 270 are mounted on the movable base 201.

The wiping member 230 is shown in FIGS.
As shown in FIG. 7, a roll-shaped one formed by externally fitting a cylindrical synthetic resin brush 232 to a rod-shaped support shaft 231 is provided. By rotating the (brush 232) while sliding it on the blackboard surface 111, the blackboard surface 111 is rotated.
To remove the written matter on the blackboard surface 111.

The wiping member assembling mechanism 220 extends the wiping member 230 in the up-down direction (vertical direction of the blackboard 100) on the blackboard surface 111 side so as to be rotatable.
And a mechanism for mounting on the movable base 201 so as to be able to freely contact and separate from the blackboard surface 111.

Referring to FIGS. 2 and 3, the wiping member assembling mechanism 220 has a substantially rectangular parallelepiped shape which is disposed between the upper and lower support frames 211a and 211b of the movable base 201 and extends vertically. Casing member 221 and upper and lower support frames 211 of upper support frame 211a
b. The upper gear case 225a and the lower gear case 225b, which are a pair of movable members, respectively, are disposed below the b.

The upper gear case 225a has a substantially rectangular box shape with an open front end (end near the blackboard surface 111), and is slidably supported on the upper surface of the upper support frame 211a. . A cylindrical projection 226a is formed on the bottom plate of the upper gear case 225a so as to communicate with the inside of the gear case 225a and penetrate vertically. The cylindrical projection 226a is
It is movably inserted in the longitudinal direction along the long hole 227a formed in the longitudinal direction (direction perpendicular to the blackboard surface 111).

Also, as shown in FIG.
25a, the upper support frame 2
A guide groove 228 extending in the front-rear direction with the upper surface of 11a
The guide member 228 forming the upper support frame 21
The upper casing 225 is fixed to the guide groove 228a formed by each guide member 228.
engaging portions 2 respectively protruding from the left and right sides of the bottom of a
29 are movably engaged in the front-rear direction along the guide groove 228a.

With this configuration, the upper gear case 225a
Is movable in the front-rear direction on the upper support frame 211a while the engaging portion 229 is guided along the guide groove 228a.

As shown in FIG. 2, the lower gear case 2
25b is a substantially rectangular parallelepiped box shape, and the top plate portion thereof is in sliding contact with the lower surface of the lower support frame 211b.
The top plate of the lower gear case 225b is provided with a cylindrical protrusion 226b that penetrates vertically through the inside of the gear case 225, and this cylindrical protrusion 226b
Immediately below the elongated hole 227a of the upper support frame 211a, it is movably inserted in the elongated hole 227b extending in the longitudinal direction of the lower support frame 211b along the longitudinal direction. Further, although not shown, the lower support frame 211b is provided on both the left and right sides of the lower gear case 225b in the same manner as in the case of the upper gear case 225a.
The engagement portions projecting from both sides of the top plate portion of the lower gear case 225b are engaged with the front and rear direction guide grooves formed by the guide members fixed to the lower gear case 225b.
5b is supported movably in the front-rear direction below the lower support frame 211b.

As shown in FIGS. 2 and 3, the casing member 221 has an elongated hole 227 in the upper support frame 211a.
a and upper plate 221a and lower plate 221b that are horizontally separated from each other and vertically between upper hole 227b and lower support frame 211b, and that upper plate 221a and lower plate 22
1b, and a pair of left and right side plates 221 vertically extending between the left and right ends of the upper plate 221a and the lower plate 221b.
d and 221d are integrally formed, and have a box shape opened toward the blackboard surface 111.

The upper surface of the upper plate 221a of the casing member 221 and the lower surface of the lower plate 221b are provided with cylindrical protrusions 222a, 222b vertically penetrating therethrough. These cylindrical projections 222a, 222
b is a long hole 227a of the upper support frame 211a, respectively.
And the lower support frame 211b is inserted into a long hole 227b, and in each of the long holes 227a, 227b, are connected to a cylindrical protrusion 226a of the upper gear case 225a and a protrusion 226b of the lower gear case 225b, respectively.

In the wiping member assembling mechanism 220 configured as described above, the two gear cases 225a and 225b
And the casing member 221 is integrally movable in the front-rear direction (the amount of movement at this time is the same as that of the slots 227a, 227).
7b), the casing member 221 moves back and forth toward the blackboard surface 111 by the forward and backward movement.

The wiping member 230 is mounted on the wiping member mounting mechanism 220 as follows. That is, the wiping member 230 includes the brush 2 of the main body.
32 are housed in the casing member 221 with their axes centered vertically with the outer peripheral portion near the blackboard surface 111 protruding from the inside of the casing member 221. The upper part of the support shaft 231 of the wiping member 230 is inserted into the upper gear case 225a through the inside of the cylindrical protrusion 222a of the upper plate 221a and the cylindrical protrusion 226a of the upper gear case 225a. 225
Inside the shaft a, the support shaft 231 is rotatably supported together with a gear 230c mounted on the upper end thereof. Similarly, the lower part of the support shaft 231 of the wiping member 230 is inserted into the lower gear case 225b through the inside of the cylindrical protrusion 222b of the lower plate 221b and the cylindrical protrusion 226b of the lower gear case 225b. The support shaft 231 is rotatably supported inside the lower gear case 225b.

With such an assembly structure of the wiping member 230, the wiping member 230 has its brush 232
Is extended in the up-down direction on the blackboard surface 111 side.
31 are mounted on the movable base 201 so as to be rotatable about the axis of the shaft 31, and the two gear cases 225 a and 225 b and the casing member 221 of the wiping member assembling mechanism 220.
Is movable toward and away from the blackboard surface 111 integrally with the blackboard surface 111. FIG. 2 shows the wiping member 230 in an advanced state, in which the wiping member 230 contacts the blackboard surface 111.

A drive mechanism for rotating the wiping member 230 is mounted on the upper gear case 225a and the upper support frame 211a. The drive mechanism includes a drive motor M1 fixed to the upper support frame 211a as shown in FIG. 2, and a gear group G1 for transmitting the drive force of the drive motor M1 to the wiping member 230. The gear group G1 includes an upper gear case 225a.
A gear 230a mounted on the drive shaft of the drive motor M1 facing the open front end, a gear 230b meshed with the gear 230a and supported in the upper gear case 225a, and an upper end of the support shaft 231 of the wiping member 230 The gear 2 mounted on the part
30c, and the driving force of the driving motor M1 is wiped by the wiping member 23 through the gears 230a to 230c in this order.
0 to rotate the wiping member 230.

When the wiping member 230 is retracted together with the two gear cases 225a, 225b and the casing member 221 in order to separate the wiping member 230 in contact with the blackboard surface 111 from the blackboard surface 111, the gear 230b Is retracted together with the upper gear case 225a, separated from the gear 230a, and their engagement is released. Therefore, the driving motor M1
Is rotated only when the wiping member 230 contacts the blackboard surface 111.

Here, in the present embodiment, the drive motor M1 is for rotating and driving the wiping member 230 and also for moving the movable base 201 in the lateral direction of the blackboard 100 by itself. The gear 230a mounted on the drive shaft of the drive motor M1 is a gear provided rotatably integrally with the pinion 131b of the traveling guide means 130 above the upper support frame 211a, as indicated by a virtual line in FIG. 230d. This allows
The driving force of the driving motor M1 is transmitted to the pinion 131b via the gear 230d, so that the moving base 201 moves by itself.

Further, both supporting frames 2 of the moving base 201 are
11a and 211b include the two gear cases 225a and 2b.
A drive mechanism for moving the 25b and the casing member 221 forward and backward, in other words, a drive mechanism for moving the wiping member 230 toward and away from the blackboard surface 111 is assembled. This drive mechanism is provided with a drive motor M2a fixedly provided at a position near the rear of the upper surface of the upper support frame 211a.
A drive motor M2b fixed at a position near the rear of the lower surface of the lower support frame 211b;
a, 225b and the casing member 221 as urging means for urging the casing member 221 forward.
And a coil spring S provided on each of the left and right sides of the coil spring.

The drive motors M2a and M2b are driven synchronously by a controller 270, which will be described later.
Wire W wound around the drive shaft so that it can be wound up / drawn out
Is derived as shown in FIG. Then, the distal end of the wire W is connected to each gear case 22 via a pulley P rotatably supported by the support frames 211a and 211b.
5a, 225b are connected to the rear surface. Note that the two gear cases 225a and 225b are
4, the wire W is described as being connected to the rear plate 221c of the casing member 221 for convenience.

The left and right coil springs S of the casing member 221 are provided at a position near the upper support frame 211a and a position near the lower support frame 211b. As shown in the figure, the support frame 211a, 211b is engaged with a pin
21 is locked to the rear end of the side plate 221d.

In a state where the driving force of the two driving motors M2a and M2b is not generated by such a driving mechanism, the two gear cases 225a and 225b and the casing member 221 are moved forward by the urging force of the coil spring S. In the state, the wiping member 230 is
It contacts the blackboard surface 111 as shown in FIG. When the driving force for winding the wire W is generated in synchronization with the driving motors M2a and M2b, the gear cases 225a and 225b and the casing member 221 are retracted against the urging force of the coil spring S, and as a result, the wiping is performed. The member 230 is separated from the blackboard surface 111.

The wiper member 240 holds the blackboard surface 11 during the wiping operation described later by the wiping device 200.
1 is to wipe off the cleaning liquid adhering to the surface of the blackboard by sliding on the blackboard, and is made of a long rubber material having a substantially V-shaped cross section as shown in FIG. is there.

In this case, the wiper member 240 is not only wetted by a cleaning liquid such as water at the time of wiping operation described later, but also slides on the blackboard surface 111 in a state of being in close contact with the blackboard surface 111. Water resistance and abrasion resistance are required. For this reason, in the present embodiment, after introducing a halogen group element to the surface of the wiper member 240 made of a rubber material, in particular, the surface of a portion directly in contact with the blackboard surface 111, halogenation is performed, and then polyvinyl chloride or polyurethane is used. The film layer is formed of a synthetic resin polymer such as

The wiper member assembling mechanism 280 extends the wiper member 240 in the vertical direction on the blackboard surface 111 side and selectively moves to the left and right sides of the wiping member 230 on the movable base 201. This is a mechanism that allows the wiper member 240 to be mounted and moved to one of the left and right sides of the wiping member 230 to be able to freely contact and separate from the blackboard surface 111.

Referring to FIG. 2 to FIG. 4, the wiper member assembling mechanism 280 includes a cylindrical projection 226a of the upper gear case 225a and an upper plate 221 of the casing member 221.
a upper cylindrical body 281a inserted concentrically with the support shaft 231 of the wiping member 230 and inserted outside the support shaft 231 inside the cylindrical projection 222a of the wiping member 230, and the lower gear case 225b.
The wiping member 2 is provided inside the cylindrical protrusion 226b of the casing member 221 and the cylindrical protrusion 222b of the lower plate 221b of the casing member 221.
30, a lower cylindrical body 281b inserted concentrically with the support shaft 231 and externally inserted to the support shaft 231, a lower end of the upper cylindrical body 281a protruding below the upper plate 221a, and the lower plate An arm piece 282a, 282b, which is a pair of rotating members, is provided at the upper end of the lower cylindrical body 281b protruding upward from the upper side of the body 221b.

Each of the cylindrical members 281a and 281b is rotatably supported on a support shaft 231 of the wiping member 230.
Due to the rotation, the arm pieces 282a and 282b move around the same axis as the wiping member 230.
It is rotatable independently of 30.

Each arm piece 282a, 282b extends obliquely forward to the side of the wiping member 230, as shown in FIG.
A wiper mounting member 283 extending in the vertical direction is fixedly provided between 2a and 282b, and both arm pieces 282a and 282b are integrally rotatably connected via the wiper mounting member 283. Then, the wiper mounting member 283
The wiper member 240 is attached so as to extend in the vertical direction.

With such an assembling structure of the wiper member 240, the wiper member 240 is wiped around the support shaft 231 of the wiping member 230 integrally with the two arm pieces 282a and 282b in front of the casing member 221. The periphery of the member 230 is rotatable. And
Although the detailed operation will be described later, by the rotation of the wiper member 240, the position where the wiper member 240 is on the left side of the wiping member 230 as shown by the solid line in FIG. 4 and the wiping member as shown by the phantom line in FIG. It is selectively moved to a position on the right side of 230, and is moved toward or away from the blackboard surface 111 at one of the positions.

The two arm pieces 282a and 282b are rotated to move the wiper member 240 from one of the left and right sides of the wiping member 230 to the other side and to move the wiper member 240 toward and away from the blackboard surface 111. A driving mechanism for driving is accommodated in the upper gear case 225a and the lower gear case 225b.

As shown in FIG. 2, the drive mechanism includes a pair of drive motors M3a and M3b which operate synchronously under the control of a controller 270 to be described later, respectively.
5a and the lower gear case 225b. The gears 2 mounted on the drive shafts of the drive motors M3a and M3b in the respective gear cases 225a and 225b.
The gear 84a is meshed with a gear 284b formed at an end of each of the cylindrical bodies 281a and 281b projecting into each of the gear cases 225a and 225b.

With this configuration, each drive motor M3a, M3
b transmits the rotational driving force to each of the tubular bodies 281a and 281b via the gears 284a and 284b in order, and connects each of the tubular bodies 281a and 281b to both arm pieces 282a and 282.
b and the wiper member 240 are rotated around the support shaft 231 of the wiping member 230.

Referring to FIG. 1, the cleaning liquid supply means 25
Reference numeral 0 denotes a wiping member 2 that wipes a cleaning liquid that is used to wash off written matter peeled off from the blackboard surface 111 by the wiping member 230 during a wiping operation described later by the wiping device 200.
This is for supplying near the contact point between 30 and the blackboard surface 111.

As shown in the drawing, the cleaning liquid supply means 250 guides the cleaning liquid pump 251 and the cleaning liquid sucked by the cleaning liquid pump 251 above the wiping member 230, and contacts the wiping member 230 with the blackboard surface 111. A water supply pipe 252 that sprays the ink toward the vicinity of the spot through a nozzle (not shown), and a storage tank 253 that collects and stores the cleaning liquid that falls on the blackboard surface 111 or the like after the spraying are provided.

In this case, the storage tank 253 is detachably mounted below the lower support frame 211b of the movable base 201, and the cleaning liquid pump 251 is mounted on the storage tank 253. In addition, storage tank 253
A filter 254 for filtering the cleaning liquid falling down including the written matter and the like peeled off from the blackboard surface 111 is detachably mounted inside the inside of the cleaning liquid pump 251.
Sends out the filtered washing liquid to the water supply pipe 252.

The blower 260 shown in FIG. 3 and FIG.
At the time of wiping operation described later by the wiping device 200,
The cleaning liquid remaining on the blackboard surface 111 immediately after being wiped by the wiper member 240 is evaporated, and the blackboard surface 1 is removed.
The air is blown to the blackboard surface 111 in order to sufficiently dry 11.

In the present embodiment, a pair of blowers 260 are provided on both left and right sides of the casing member 221 of the wiping member assembling mechanism 220 between the two support frames 211a and 211b of the moving base 201. A housing 261 is fixed to both support frames 211a and 211b. A rotating fan 263 rotatably driven by a fan motor 262 mounted on an upper portion of the housing 261 is rotatably housed in a housing 261 of each blower 260 around a vertical axis. Further, in the front surface of the housing 261 facing the blackboard surface 111, a blow-off air outlet 261a extending in the vertical direction over substantially the entire length thereof is opened and formed toward the blackboard surface 111. In this case, the blower outlet 261a of the left blower 260 moves the wiper member 240 to the position shown by the solid line in FIG.
1 and the blower outlet 2 of the right blower 260
Reference numeral 61a is directed to the blackboard surface 111 on the right side of the wiper member 240 in a state where the wiper member 240 is moved to the position indicated by the phantom line in FIG.

In the housing 261 of each blower 260, an electric heater (not shown) for heating the blown air as necessary is accommodated. In the present embodiment, a halogen lamp is used as the heater. I have.

The controller 270 is mounted at an appropriate position on the moving base 201, and as shown in FIG. 5, controls the rotation of the wiping member 230 and the movement of the moving base 201 through the driving motor M1. Wiping member rotation / running control circuit 270a and wiping member 230
The wiper member contact / separation control circuit 270b that controls the contact / separation operation of the wiper member 240 with respect to the blackboard surface 111 via the drive motors M2a and M2b, and controls the rotation operation of the wiper member 240 via the drive motors M3a and M3b. A wiper member rotation control circuit 270c; a cleaning liquid supply control circuit 270d for controlling the operation of the cleaning liquid supply means 250 via the cleaning liquid pump 251;
Operation control (rotating fan 26 by fan motor 262)
3) and a blower control circuit 270e for performing the rotation drive control and the heater ON / OFF control.

The controller 270 is connected to an operation panel 271 for the user to instruct the controller 270 to operate the wiping device 200.

The operation panel 271 includes a main power switch S1 and a left erasing switch S2 for causing the wiping device 200 to perform a wiping operation for erasing a written matter on the blackboard surface 111 while moving the movable base 201 to the left.
And moving the moving base 201 rightward while moving the blackboard surface 1
A right erasing switch S3 for causing the wiping device 200 to perform a wiping operation for erasing the written matter 11; a stop switch S4 for stopping the wiping operation and the movement of the movable base 201; Switch S for moving the moving base 201 to a desired position
5, a hot air switch S7 for blowing hot air to the blower 260, and a high speed switch S6 and a low speed switch S8 for switching the moving speed of the moving base 201 between high and low.

The controller 270 corresponds to an operation control means when corresponding to the configuration of the present invention.

Next, the operation of the wiping device 200 of this embodiment will be described.

In the wiping device 200, the blackboard surface 111
In which the wiping operation for erasing the written items is not performed (the wiping operation is stopped), that is, the operation of the wiping device 200 is stopped, the state after the wiping operation by the wiping device 200 is completed, and the operation panel 271 For example, when the operation is stopped by the stop switch S4,
In a state where 1 is stopped, the wiping member 230 and the wiper member 240 are in a state as shown in FIG.

That is, when the movable base 201 is stopped, the casing member 221 of the wiping member assembling mechanism 220 is advanced by the urging force of the spring S, and the wiping member 230 comes into contact with the blackboard surface 111. I have.

The wiper member 240 is moved by the drive motors M3a and M3b to the position shown by the solid line in FIG. 4 (the position on the left side of the wiping member 230) or the position shown by the virtual line (the position on the right side of the wiping member 230). The arm piece 2
82a, 282b, etc., and the blackboard surface 1
11 has been separated. In this case, the wiper member 24
Whether 0 exists on the left or right side of the wiping member 230 depends on the operation of the wiping device 200 performed immediately before.

First, the moving substrate 20 of the wiping device 200
It is assumed that 1 is stopped at the left end position of the blackboard 100,
In this state, a case will be described in which the main power switch S1 of the operation panel 271 is turned ON to operate the wiping device 200 (operation for erasing the written matter on the blackboard surface 111).

When the user presses the right erase switch S3 on the operation panel 271 to erase the written matter on the surface 111 of the blackboard, the controller 270 firstly activates the current position of the wiper member 240 using a proximity switch (not shown) or the like. Know the rotation position. At this time, when the rotational position of the wiper member 240 is, for example, the position indicated by the phantom line in FIG. 4, that is, when the wiper member 240 is on the right side of the wiping member 230, the controller 270 controls the drive motors M2a and M2b.
At the same time, a drive signal for performing the winding operation of the wire W is given. In response to this, the two drive motors M2a and M2b simultaneously take up the wire W, and
a and 225b are retracted by a predetermined amount together with the casing member 221 and the wiping member 230. As a result, the wiping member 230 that has been in contact with the blackboard surface 111 is separated from the blackboard surface 111, and the wiper member 240 does not hit the blackboard surface 111, and the axis of the wiping member 230 moves between the blackboard surface 111 and the wiping member 230. It can be rotated around the center.

In this state, the controller 270 simultaneously controls the drive motors M3a and M3b to control the arm pieces 282a and 282a.
282b is rotated in the counterclockwise direction by the angle 示 し shown in FIG.
Give from 0b. In response to this, both drive motors M3a, M
3b, simultaneously, both arm pieces 282a, 282a, via the gears 284a, 284b and the respective cylindrical bodies 281a, 281b.
282b is rotated together with the wiper member 240 from the position shown by the phantom line in FIG.
As a result, the wiper member 240 is
A, 282b is rotated around the wiping member 230 to the position shown by the solid line in FIG. 4 and moved to the left side of the wiping member 230.

When the movement of the wiper member 240 is completed, the controller 270 causes the wiping member contact / separation control circuit 270 to operate.
b, the output of the drive signal to both drive motors M2a, M2b is stopped, and the operation of both drive motors M2a, M2b is stopped. At this time, the wiping member 240 is pushed by the casing member 22 by the urging force of the spring S.
It advances toward the blackboard surface 111 together with 1 and the like, and is brought into contact with the blackboard surface 111.

When the wiper member 240 is already in the position shown by the solid line in FIG. 4 (the position on the left side of the wiping member 230) when the right erase switch S3 of the operation panel 271 is pressed, the above-described operation is performed. Wiping member 23
The operation of moving the wiper member 240 and the operation of moving the wiper member 240 are omitted.

Subsequently, the controller 270 controls the wiping member 2
30 to the blackboard surface 111.
The wiper member rotation control circuit sends a drive signal to the drive motors M3a and M3b to rotate the arm pieces 282a and 282b clockwise from the position shown by the solid line in FIG. Give from 270c. In response to this, both drive motors M3a, M3b
At the same time, via the gears 284a, 284b and the respective cylindrical bodies 281a, 281b, the two arm pieces 282a, 28b.
4b is rotated together with the wiper member 240 from the position shown by the solid line in FIG. 4 in the clockwise direction by an angle θ, thereby bringing the wiper member 240 into contact with the blackboard surface 111.

Next, the controller 270 controls the moving base 2
A drive signal for operating the drive motor M1 to rotate the wiping member 230 while rotating the wiper member 01 to the right (a drive signal for rotating the drive shaft of the drive motor M1 counterclockwise) is transmitted to the wiping member rotation / running control circuit. 2
70a to the drive motor M1. In response to this, the drive motor M1 (see FIG. 2) drives the gear 230a mounted on its drive shaft to rotate in a counterclockwise direction, and further drives the pinion through a gear 230d meshed with the gear 230a. 131b is rotated clockwise. At the same time, the drive motor M1 rotationally drives the wiping member 230 counterclockwise via the gears 230a to 230c.

Thus, while the wiping member 230 is rotating while its outer peripheral portion is in sliding contact with the blackboard surface 111, the moving base 201 is moved by the wiping member 230 and the wiper member 2.
It travels from the left end to the right end of the blackboard 100 together with 40 and the like. At this time, the wiper member 240 that is in contact with the blackboard surface 111 on the left side of the wiping member 230
Slides on the blackboard surface 111 so as to follow the wiping member 230 from behind.

In parallel with the above operation, the controller 27
0 activates the cleaning liquid pump 251 according to a drive signal supplied from the cleaning liquid supply control circuit 270c to the cleaning liquid pump 251 of the cleaning liquid supply means 250 (see FIG. 1).
As a result, the cleaning liquid in the storage tank 253 is
The liquid is sprayed from above the wiping member 230 toward the blackboard surface 111 via the second member 52.

Further, the controller 270 includes the blower control circuit 2
In response to a drive signal given from 70d to the left blower 260, the fan motor 262 of the left blower 260 is operated to rotate the rotary fan 263. This allows
The air is blown from the air blow outlet 261 a of the left blower 260 toward the blackboard surface 111 on the rear side of the wiper member 240.

By the operation of the wiping device 200 as described above, the wiping operation for erasing the written matter on the blackboard surface 111 (hereinafter referred to as right wiping operation) is performed while moving the moving base 201 rightward.

That is, in this rightward wiping operation,
The wiping member 230 moves rightward together with the moving base 201 while rotating in a state of contacting (sliding contact) with the blackboard surface 111, and at this time, the wiping member 230 and the blackboard surface 1 are rotated.
The cleaning liquid is supplied in the vicinity of the contact point with the cleaning liquid 11. Thus, the written matter on the blackboard surface 111 is washed away on the blackboard surface 111 by the cleaning liquid while being peeled off from the blackboard surface 111, and the written matter is erased. Further, the wiping member 2
The left wiper member 240L, which is in contact with the blackboard surface 111 on the left side of the wiping member 230, which moves to the right, follows the wiping member 230 from behind, as the moving base 201 moves to the right. And slide on the blackboard surface 111. Thereby, the blackboard surface 11
The cleaning liquid adhering and remaining on the wiper member 1
0, and is dropped downward while being wiped by the storage tank 253.
Will be collected. Further, the air is blown from the blowing outlet 262a of the left blower 260 to the blackboard surface 111 on the rear side of the wiper member 240, so that the wiper member 24
The water of the cleaning liquid on the blackboard surface 111 that has not been completely removed by 0 evaporates, and the blackboard surface 111 is dried.

Here, during the wiping operation as described above, the air blower 260 blows the blackboard surface 11
In a room condition in which the indoor air conditioner 1 cannot be sufficiently dried, that is, when the indoor humidity is high or the indoor temperature is low, the user operates the hot air switch S on the operation panel 271.
Press 7. Then, the blower control circuit 27 of the controller 270
0d sends a signal for operating a heater (not shown) of the left blower 260 to the blower 260 to operate the heater. At this time, warm air is blown from the blower outlet 262a of the left blower 260 toward the blackboard surface 111 on the rear side of the wiper member 240. Thereby, the blackboard surface 111 can be dried quickly.

When the low-speed switch S8 of the operation panel 271 is pressed to blow the hot air to the blower 260, the drive applied to the drive motor M1 from the wiping member rotation / travel control circuit 270a of the controller 270. By the signal, the driving motor M1 operates at a low speed, and the moving speed of the moving base 201 becomes low. For this reason, the drying effect of the blackboard surface 111 can be further enhanced.

As described above, the moving base 201 of the wiping device 200 is
0, and the limit switch 141b provided on the upper right side of the outer casing 210 is moved to the blackboard frame 1
20 comes into contact with a contact member 141a provided at the right end of the upper frame of the upper frame 20.
70. At this time, the controller 270 stops the operation of the drive motor M1, the cleaning liquid pump 251, and the blower 260, thereby moving the movable base 201 and removing the wiping member 2.
The rotation of 30, the supply of the cleaning liquid, and the blowing to the blackboard surface 111 are stopped, and the rightward wiping operation by the wiping device 200 is completed.

Further, at this time, the controller 270 simultaneously controls the drive motors M3a and M3b so that the wiper member 240, which is in contact with the blackboard surface 111 on the left side of the wiping member 230, is separated from the blackboard surface 111. A drive signal for rotating 282a and 282b counterclockwise by the angle θ in FIG. 4 is provided from the wiper member rotation control circuit 270c. In response to this, the two drive motors M
3a and M3b are simultaneously arm pieces 282a and 282b
Is rotated in the counterclockwise direction by the angle θ in FIG. 4 together with the wiper member. As a result, the wiper member 240 rotates to the position shown by the solid line in FIG.
11 and is kept in that state.

Next, the moving substrate 20 of the wiping device 200
In the state where 1 is located at the right end of the blackboard 100, the wiping device 200 performs a wiping operation (hereinafter, referred to as a left wiping operation) for erasing the written matter on the blackboard surface 111 while moving the movable base 210 to the left. When the user presses the left erase switch S on the operation panel 271,
Press 2. At this time, the leftward wiping operation is performed in the same manner as the rightward wiping operation.

That is, when the wiper member 240 is at the position shown by the solid line in FIG. 4 when the left erase switch S2 of the operation panel 271 is pressed, first, the same operation as at the start of the rightward wiping operation is performed. The controller 270 controls the drive motor M by the wiping member contact / separation control circuit 270b.
2a and M2b are simultaneously operated to wind up the wire W, so that the wiping member 230 is
21 and the like, and is separated from the blackboard surface 111. Further, in this state, the controller 270 controls the drive motor M3 by the wiper member rotation control circuit 270c.
a, M3b are operated simultaneously, and the wiper member 240
The wiper member 240 is moved from the position shown by the solid line in FIG. 4 to the position shown by the imaginary line in FIG. Subsequently, the controller 270 stops the operation of the drive motors M2a and M2b, so that the wiping member 230 is moved forward together with the casing member 221 and the like by the urging force of the spring S to contact the blackboard surface 111.

When the wiper member 240 is already in the position shown by the phantom line in FIG. 4 (the position on the right side of the wiping member 230) when the left erase switch S2 of the operation panel 271 is pressed, the above-described operation is performed. Wiping member 23
The operation of moving the wiper member 240 and the operation of moving the wiper member 240 are omitted.

Next, the controller 270 simultaneously operates the drive motors M3a and M3b by the wiper member rotation control circuit 270c, and moves the wiper member 240 at the position indicated by the phantom line in FIG. 4 counterclockwise with the arm pieces 282a and 282b. By rotating the wiper member 240 in the direction by the angle θ, the wiper member 240 is brought into contact with the blackboard surface 111.

Thereafter, the controller 270 controls the pinion 1 by the wiping member rotation / running control circuit 270a.
By actuating the drive motor M1 to rotate the counterclockwise 31b, the moving base 201 is moved leftward and the wiping member 230 is rotationally driven. In parallel with this, the controller 270 activates the cleaning liquid pump 251 by the cleaning liquid supply control circuit 270d, so that the cleaning liquid in the storage tank 253 is removed from above the wiping member 230 via the water supply pipe 252. Spray toward the blackboard surface 111. Further, of the left and right blowers 260, the fan motor 26 of the right blower 260
2 is operated by the blower control circuit 270 e to rotate the rotating fan 263 of the right blower 260, so that the right blower outlet 261 a of the right blower 260 contacts the blackboard surface 111 on the right side of the wiping member 230. Blackboard surface 1 on the right side of the wiper member 240
11 is blown.

At this time, when the hot air switch S7 of the operation panel 271 is pressed, the heater (not shown) of the right air blower 260 is operated by the air blower control circuit 270d of the controller 270, so that the blackboard surface 111 is The blowing of the warm air is performed in the same manner as in the rightward wiping operation.

By the above operation, while the moving substrate 201 of the wiping device 200 moves leftward from the right end to the left end of the blackboard 100, the written matter on the blackboard surface 111 is erased (the written matter is peeled off and washed off). ), Blackboard surface 1
The leftward wiping operation for wiping the cleaning liquid on 11 and drying the blackboard surface 111 is performed in the same manner as the rightward wiping operation described above.

[0110] While such a leftward wiping operation is performed, the moving base 201 of the wiping device 200 is
The outer casing 21 is moved to the left end of the blackboard 100,
When the limit switch 141b provided on the upper left side of the abutment 0 contacts the contact member 141a provided on the left end of the upper frame of the blackboard frame 120, the limit switch 141b sends a detection signal to the controller 270. At this time, the controller 270 controls the drive motor M as in the case of the rightward wiping operation.
1. By stopping the operations of the cleaning liquid pump 251 and the blower 260, the movement of the movable base 201 and the wiping member 23 are stopped.
The rotation of 0, the supply of the cleaning liquid, and the blowing to the blackboard surface 111 are stopped, and the leftward wiping operation by the wiping device 200 is completed.

Further, at this time, the controller 270 controls the drive motor M3 by the wiper member rotation control circuit 270c.
a, M3b are simultaneously operated, and the wiper member 240 in contact with the blackboard surface 111 on the right side of the wiping member 230.
Is rotated clockwise by the angle θ, the wiper member 240 is separated from the blackboard surface 111, and that state is maintained.

Further, in the wiping device 200 of this embodiment, the user attempts to erase a part of the written matter on the blackboard surface 111 or performs the wiping operation as described above on the blackboard 100.
If you want to start from the desired horizontal position of
First, in order to move the moving base 201 to a desired position, a moving switch S5 of the operation panel 271 is pressed. In this case, when moving the moving base 201 rightward, the right end of the moving switch S5 is pressed,
To move to the left, move switch S
Press the left end of 5.

When the movement switch S5 is thus operated, the controller 270 first activates the drive motors M2a and M2b simultaneously by the wiping member contact / separation control circuit 270b to wind up the wire W, thereby wiping. The member 230 is retracted together with the casing member 221 and the like,
Separate from the blackboard surface 111. The operation of moving the wiping member 230 away from the blackboard surface 111 in this manner differs from the case where the rightward or leftward wiping operation is started, in which the wiper member 240 is moved away from the wiping member 230.
This is done on either the left or right side.

Next, the wiping member 230 is moved to the blackboard surface 1.
While maintaining the state separated from the controller 11, the controller 270
The pinion 131b is moved by the wiping member rotation / running control circuit 270a in accordance with the moving direction of the moving base 201 specified by the user via the moving switch S5.
The drive motor M1 is operated so as to rotate clockwise or counterclockwise, and the moving base 201 is moved in the instructed moving direction.

In this case, the wiping member 230
In addition, since the upper gear case 225a is retracted, the gear 230b is separated from the gear 230a of the drive shaft of the drive motor M1 in the gear group G1 shown in FIG. Therefore, the driving force of the drive motor M1 is not transmitted to the wiping member 230, and the wiping member 2
30 does not rotate.

In this way, when the movable base 201 moves to a desired position and the user presses the stop switch S4,
The controller 270 stops the drive motor M1. Thereby, the moving base 201 is stopped at a desired position. At the same time, the controller 270 stops the operation of the drive motors M2a and M2b. Thus, the wiping member 230 advances with the casing member 221 and the like by the urging force of the spring S, and comes into contact with the blackboard surface 111.

Thereafter, the user presses either the right erase switch S3 or the left erase switch S2 on the operation panel 271 in accordance with which of the rightward and leftward wiping operations is performed by the wiping device 200. As a result, the wiping device 200 performs the above-described rightward or leftward wiping operation. That is, the blackboard surface 111 on the right side from the position where the moving base 201 is stopped.
In the case of erasing the written matter, the right wiping operation is performed by operating the right erase switch S3, and the left blackboard surface 11 from the position where the moving base 201 is stopped is moved.
In order to erase the write item No. 1, the left erase switch S2
Is operated, the leftward wiping operation is performed.

As described above, the wiping device 20 of the present embodiment is
According to 0, the wiping operation for erasing the written matter on the blackboard surface 111 is performed in either the left or right direction.
This can be done even when moving. Moreover, the wiping operation of the blackboard surface 111 can be started from a desired position as needed, or the wiping operation of erasing only a part of the written matter on the blackboard surface 111 can be performed. Further, after the wiping operation is completed, the movable base 201 is stopped until the wiping operation is restarted, or when the moving base 201 is simply moved to a desired position before the wiping operation is started, for example, a state other than the wiping operation ( In a state where the wiping operation is stopped), the wiper member 240
1 is maintained in a state of being separated from 1. Therefore, even when the wiping device 200 is not used for a long time, the wiper member 240 does not stick to the blackboard surface 111. In particular, when moving the movable base 201 except during the wiping operation, the wiper member 24
0 and also the wiping member 230 is separated from the blackboard surface 111, so that the wiper member 240 and the wiping member 2
The moving substrate 2 is kept in contact with the dry blackboard surface 111.
It is not moved with 01. Therefore, the wiper member 240, the wiping member 230, and the blackboard surface 1
11 can be prevented from being worn.

[Brief description of the drawings]

FIG. 1 is a front view schematically showing the overall configuration of a blackboard wiping device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III of FIG. 2;

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

FIG. 5 is an explanatory diagram showing an operation panel and a controller for performing operation control of the apparatus shown in FIG. 1;

[Explanation of symbols]

100: blackboard, 111: blackboard surface, 200: wiping device, 201: moving base, 230: wiping member, 240
.., Wiper members, 225a, 225b, gear cases (movable members), 282a, 282b, rotating members, 250, cleaning liquid supply means, 260, blowers.

Claims (8)

[Claims] 1. A moving base supported on a blackboard so as to be able to move and stop in the horizontal direction of the blackboard, and the movable base is rotatable around a vertical axis of the blackboard while the outer peripheral portion is in sliding contact with the surface of the blackboard. At the time of wiping work for erasing the written matter on the surface of the blackboard, which is mounted on the moving base, a substantially roll-shaped wiping member that is moved in the lateral direction of the blackboard together with the moving base while rotating, and the wiping member Cleaning liquid supply means for supplying a cleaning liquid for washing off written matters peeled off from the surface of the blackboard due to rotation and movement in the vicinity of a contact point between the wiping member and the surface of the blackboard; A wiper member mounted on the moving base so as to slide on the surface of the blackboard following the wiping member moving with the moving base to wipe the cleaning liquid. In the wiping device for a blackboard, the wiper member is selectively movably mounted on the movable base at a position on the left side of the wiping member and in sliding contact with the surface of the blackboard and on a right side of the wiping member and in a position sliding on the blackboard surface. Then, at the time of the wiping operation, the wiper member is moved to the rear side of the wiping member out of the left and right sides of the wiping member that moves in the left or right direction together with the moving base so as to slide on the blackboard surface. A wiping device for a blackboard, further comprising operation control means for performing a movement operation of the wiper member. 2. The operation control means moves the wiper member so as to contact the wiper member with the surface of the blackboard only during the wiping operation, and separates the wiper member from the surface of the blackboard when the wiping operation is stopped. 2. The apparatus for wiping a blackboard according to claim 1, wherein: 3. The apparatus for wiping a blackboard according to claim 2, wherein said operation control means includes means for moving said movable base to a position designated by a user when said wiping operation is stopped. 4. The wiping member is mounted on the movable base so as to be able to contact and separate from the surface of the blackboard, and the operation control means is configured to move the movable base to at least a position specified by the user. 4. A means for separating the wiping member from the surface of the blackboard.
The described blackboard wiping device. 5. The wiper member is provided so as to be rotatable independently of the wiping member around the same axis as the rotation axis of the wiping member. The operation control means is configured to rotate the wiper member by rotating the wiper member. The wiping device for a blackboard according to any one of claims 1 to 4, wherein the wiper member is moved right and left and the wiper member is moved toward and away from the surface of the blackboard. 6. The moving base is arranged on the front side of the blackboard so as to be spaced apart in the vertical direction of the blackboard, and is respectively provided on the moving base so as to be integrally movable toward the surface of the blackboard. A pair of movable members rotatably supporting shafts at upper and lower ends of the wiping member so as to move the wiping member toward and away from the surface of the blackboard; A pair of rotating members to which the wiper member is attached so that the wiper member rotates around the wiping member around the outer periphery of the wiping member by rotation of the wiping member. Wherein the operation control means causes the wiper member to move to the left and right by the rotating operation of the rotating member and to move the wiper member toward and away from the blackboard surface. The wiping blackboard according to claim 4, characterized in that occupy perform contact and separation with respect to the blackboard surface of said wiping member by advancing and retracting movement of the pair of movable members device. 7. A right-side blower capable of blowing air to the blackboard surface on the right side of the wiper member moved to the right side of the wiping member, and capable of blowing air to the blackboard surface on the left side of the wiper member moved to the left side of the wiping member. The left and right blowers are mounted on the movable base, and the operation control means is configured to, during the wiping operation, of the right and left blowers, behind the wiper member sliding on the surface of the blackboard following the wiping member. 5. A means for performing a blowing operation of a blower capable of blowing air to a blackboard surface on a side of the side.
The blackboard wiping device described in the section. 8. The wiper member according to claim 1, wherein the wiper member is made of a rubber material having a coating layer formed of a synthetic resin polymer on an outer surface in contact with the surface of the blackboard. Blackboard wiping device.