KR20000018280U - Roll screen type white boards - Google Patents

Abstract

The present invention relates to a roll screen type white board, which increases the recordable area, lengthens the erasing time of the recorded contents, allows the user to view the recorded contents again, and automates the erasing of the recorded contents. Both ends of the film 10 are fixed to the winding roll 14 and the rewinding roll 16 which are rotated by the control drive motor 18 and the second drive motor 20 at both inner sides of the casing 12, respectively. The white film 10 passes through the front of the support plate 26 for the white film which blocks the front opening 24 of the casing 12, and spiral groove rollers for reciprocating the eraser body 44 in the vertical direction (48). ) Is a roll screen type white board which is in surface contact with the white film (10).

The present invention can continuously record on the white film 10 while transporting the white film 10 at a constant speed or intermittently, eliminating the hassle of recording while erasing the recorded contents during the teaching, and white film By rewinding (10), the important contents can be repeatedly learned or reviewed, and there is an advantage of saving effort and time by automating the deletion of the contents recorded on the white film 10.

Description

Roll screen-type white board {ROLL SCREEN TYPE WHITE BOARDS}

The present invention relates to a roll screen type white board. More specifically, the present invention relates to a roll screen type white board which can record continuously by increasing the recordable area, record erasing period is long, and automated erasing the record. will be.

Conventional whiteboards were made of plates of a certain size, like a regular blackboard, so when used for teaching, the teacher had to repeat writing and erasing with board markers often and often, and the learner repeated what the teacher had written. There was a problem such as not see.

As a result of earnestly examining to solve the above problems of the prior art, the inventor does not frequently repeat recording and erasing each lesson if the whiteboard can be used as a videotape recorder. Because it saves the effort and time to record and erase, teaching can be done more efficiently, and learners can improve the learning efficiency by repeating the learning because they can see the contents recorded by the teacher after the lesson. I came to realize that this invention was completed.

The present invention aims to provide a roll screen-type whiteboard that can increase the recording area, lengthen the cycle of erasing the recorded teachings, view the recorded contents again, and automate the erasing of the recorded teachings.

1 is a plan view of a roll screen type white board according to the present invention.

Figure 2 is a front view showing the internal structure by cutting a part of the roll screen type white board according to the present invention.

Figure 3 is an enlarged side view showing the operating state of the automatic eraser shown in Figures 1 and 2.

Explanation of symbols on main parts of drawings

10: white film, 12: casing, 14: roll roll, 16: rewind roll,

18: first driving motor, 20: second driving motor, 22: electric eraser

In the present invention, as shown in Figs. 1 to 3, both ends of a long synthetic resin film (hereinafter referred to as a white film) 10 whose surface is treated to be written with a normal maca pen are respectively shown in the casing 12. It is fixed to the winding roll 14 and the rewinding roll 16 standing on both sides of the inside, and the winding roll 14 and the rewinding roll 16 are rotated by the first driving motor 18 and the second driving motor 20, respectively. To give, and the winding roll (14) side was to install the electric eraser (22) upright.

The white film 10 is able to pass through the front of the support plate 26 for the white film blocking the front open portion 24 of the casing (12).

The drive pulley 30 fixed to the rotary shaft 28 of the first drive motor 18 and the driven pulley 32 of the winding roll 14 are connected by an electric belt 34, the second drive motor 20 The driving pulley 38 fixed to the rotating shaft 36 of) and the driven pulley 40 of the rewinding roll 16 are connected by an electric belt 42.

The electric eraser 22 allows the eraser body 44 to move vertically while keeping the eraser body 44 and the white film 10 and the eraser body 44 traveling in front of the guide roll 46 close to each other. The guide rod 47 is inserted, and the spiral groove roller 48 for reciprocating the eraser body 44 in the vertical direction.

As shown in FIG. 3, the spiral groove roller 48 has two spiral grooves 50 and 50 'whose spiral directions are opposite to each other.

A driven pulley 52 is fixed to the spiral groove roller 48, and the driven pulley 52 is driven by a drive pulley 58 and an electric belt 60 fixed to the rotation shaft 56 of the eraser drive motor 54. It is connected.

The eraser body 44 has a cam shoe 62 fitted into the spiral grooves 50 and 50 'of the spiral groove roller 48, and is formed when the spiral groove roller 48 rotates in either direction. It is designed to reciprocate up and down along the grooves 50 and 50 '.

In the present invention, only the transmission means of the winding roll 14, the rewinding roll 16 and the electric eraser 22 is represented by a belt, but the transmission means may be changed to a gear or a chain. .

In the drawings, reference numeral 64 is an operation panel including a button for winding the white film 10, a stop and rewind button, a winding speed adjusting knob, and a speed adjusting knob for operating, stopping, and erasing the electric eraser 22.

1 and 2, both ends of the white film 10 passing in front of the backing plate 26 blocking the front opening 24 of the casing 12 are respectively shown in FIGS. 1 and 2. (18) and the second driving motor 20 is fixed to the winding roll 14 and the rewinding roll 16, so that when used for teaching, the person who teaches the white film 10 at a desired speed Since the recording can be continuously recorded on the white film 10 while being transported intermittently or intermittently, it can save effort and time while recording the contents while teaching, and save time. By rewinding), it is possible to learn important contents repeatedly or review easily, thus improving the learning efficiency.

If you repeat the same lessons, you can rewind without deleting the contents of the first lesson and use it for the next lesson, so you do not need to repeat the recording so you can make the lesson more efficient. have.

In addition, since the present invention is designed to erase the contents recorded on the white film 10 by the electric eraser 22 during or after the instruction, it is possible to save effort and time by automating the deletion of the recorded contents. There is an advantage.

Claims (2)

Both ends of the white film 10 on the surface of the roll on which the surface of the roll is processed so as to use a conventional maca pen are rotated by the first drive motor 18 on both sides of the casing 12, respectively. 2 is fixed to the rewinding roll 16 which is rotated by the drive motor 20, and the support plate 26 for the white film 10 is provided on the front open part 24 of the casing 12. Roll Screen Whiteboard. The eraser body 44 reciprocating by the spiral groove roller 48 having two spiral grooves 50 and 50 'having different spiral directions is in surface contact with the white film 10. Roll screen type whiteboard, characterized in that.