JPS61137798A - Writing sheet movable type blackboard - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a movable writing sheet blackboard that can change the writing surface by moving the writing sheet in a winding or rotating manner.

[Prior Art] Conventionally, in this type of blackboard with a movable writing sheet, if you wanted to draw vertical or horizontal straight lines on the writing surface, you would have to bring a separate ruler and apply the ruler to the writing surface. Ta.

[Problems to be solved by the invention] However, with this type of device, there is a risk of scratching the surface of the writing sheet because the ruler is placed against the writing surface, and when the ruler is moved, the ruler, hands, etc. There was a problem with white characters and figures being erased on the writing surface.

This invention was devised to solve these problems, and allows vertical and horizontal lines to be clearly written on the writing sheet without damaging the sheet surface. To provide a blackboard with a movable writing sheet without the risk of erasing characters, figures, etc.

[Means for Solving the Problems 1] The present invention provides a device that is wound into a roll or endlessly and placed in a main body case with one side open, with the writing surface facing the open side and movable by winding or rotation. A writing sheet stored in the main case, a rectangular window-shaped outer frame that fits into the main case to press the writing sheet from the outside and stably hold the writing surface of the sheet, and an opposing 2') straddle between,
Attachment of a long ruler that is movable along its two sides and a writing instrument that is mounted on this ruler and is movable in a direction perpendicular to the direction of movement of the ruler is It is equipped with a tool.

[Function] In the present invention having such a configuration, after moving the long ruler to a position where a line is drawn, the ruler is fixed and the writing instrument is attached by moving the instrument, or the writing instrument is attached by moving the ruler. By fixing the tool and moving the ruler, vertical and horizontal lines can be easily drawn without the ruler touching the sheet surface.

[Embodiments of the invention] An embodiment of the present invention will be described below with reference to the drawings.

Figure 1 is an external view of the whistle, where 1 is the blackboard body, and 2.3 is a T-shaped stand that supports the blackboard body.

The blackboard main body 1 has a rectangular window-shaped outer frame 4 as shown in FIG.
and 1. It consists of a main body case 5 that is fitted into this outer frame 4, and inside the case 5 there are rotating shafts 6 and 7 provided on both sides.
, a writing sheet 8 wrapped between the rotating shafts 6.7, a bottom plate 9 supporting the sheet 8 on the rear side, and drive motors 1o, 11, etc. for rotationally driving each of the rotating shafts 6.7. is stored. Further, an operation unit 12 having various operation switches is attached to the edge of the main body case 5, and each switch of the operation unit 12 is operated through a small window 13 provided at the edge of the outer frame 4. It is designed to be operated by The surface of the sheet 8 exposed in the hollow part of the outer frame 4 serves as a writing surface on which characters, figures, etc. can be written. The seat 8 is movable left and right in the figure by the rotation of the drive motor 1o or 11, and the drive motor 10 or 11 is selectively rotated by the operation of a switch of the operation unit 12. It has become.

Concave grooves 14 and 15 are formed on the outer sides of the upper side 41 and lower side 42 of the outer frame 4, respectively, into which rollers of a ruler body to be described later are fitted. Furthermore, a scale is engraved on the upper side 41 to serve as a reference for determining the length.

In addition, the main body case 5 and the outer frame 4 are connected by screws 16, 16,
It is fitted and fixed by ....

Figures 3 and 4 show the attachment of the ruler body 20 and writing implement 3.
0, the ruler body 20 has a long rectangular shape with a scale that serves as a reference for length, and rollers 21.21 that fit into the grooves 14.15 are provided at both ends of the ruler body 20.
The L-shaped fitting 22 with the attached L-shaped fitting 22 is fixed with screws 23 and 23. On both sides of the ruler body 20 there are grooves 24.2 into which the O-ra of the writing instrument 30 is fitted, which will be described later.
5 are formed extending above the upper side 41 and the lower side 42, respectively.

The mounting tool 30 has rollers 32.
．． 33 is attached, inner rollers 32 and 32 are fitted into the groove 25, and the roller 33 is fitted into the groove 25 so as to be freely movable relative to the ruler body 20 in its longitudinal direction.

Moreover, the metal fitting 3 is located in the center of the long side of the hinge-shaped metal fitting 31
A screw 34 is attached to lock the movement of 1. A writing instrument support 35 for supporting the writing instrument 17 is fixed to the short side of the bow-shaped metal fitting 31 with a screw 36.

A stopper 18. is provided at the end of the groove 14.15 of the outer frame 4.
19 is attached, one of the stoppers 18. is opened and the roller 21.21 of the ruler body 20 is fitted into the groove 14.15, and then the stopper 18.19 is closed to fit the roller 21.21 of the ruler 20 into the groove 1.
From 4.15, the ruler body 20 is prevented from jumping out.

Figure 5 is a front view of the blackboard main body 1, and Figure 6 is the A- of Figure 5.
Although this is a sectional view of A, the ruler body 20 is fixed in the groove 14, 15 and moves from side to side as shown by the solid line arrow in the figure, and the writing instrument 17 is attached to the tool 30 as shown by the dotted line arrow in the figure. As shown, it moves up and down along grooves 24 and 25.

In the embodiment of the present invention having such a configuration, when writing characters or figures on a writing surface, each drive motor 10, 11 is rotationally controlled by operating the operation unit 12 to set a desired writing surface. Characters, figures, etc. are written with ink on the writing surface thus set. The writing surface is made of a glossy material such as plastic and is easily compatible with ink, so it can be freely written on or erased. Further, when writing characters or figures on the writing surface, the ruler body 20 can be placed, for example, so as to overlap the left side of the outer frame 4, so that it does not interfere with the writing work of the characters or figures. Furthermore, since the width of the ruler 20 is less than the width of the left side, the writing surface will not be narrowed by the ruler 20.

In addition, when drawing a straight line on the writing surface, move the ruler body 2 degrees and set it in the position to draw the straight line. When drawing a vertical straight line, the ruler 20 is held down and the transfer tool 30 of the writing instrument 17 is moved. Further, when drawing a horizontal straight line, the mounting tool 30 is fixed at a predetermined position with a screw 34, and the movement of the ruler body 20 is controlled. In this way, straight lines can be freely and easily drawn both vertically and horizontally. Furthermore, since the ruler surface or a person's hand does not come into contact with the writing surface, there is no risk of scratching the surface of the sheet or erasing previously written characters or figures.

[Effects of the Invention] As detailed above, according to the present invention, vertical and horizontal lines can be easily and clearly written on a writing sheet without damaging the sheet surface, and To provide a movable writing sheet movable blackboard with no risk of erasing written characters or figures.

[Brief explanation of the drawing]

Figures 1 to 6 show embodiments of this invention.
The figure is a perspective view showing the external appearance, Figure 2 is an exploded perspective view of the blackboard body, Figure 3 is an exploded perspective view showing a part of the ruler body and the attachment of the writing instrument, and Figure 4 is an exploded perspective view showing the structure of the ruler body and the writing implement. 5 is a front view of the blackboard main body, and FIG. 6 is a sectional view taken along line 8-A in FIG. 5. 1...Blackboard body, 8...Writing sheet, 14.15.
... Concave groove, 17... Writing instrument, 20... Ruler, 24
．． 25... Concave groove, 30... Writing instrument mounting tool. Applicant's agent Patent attorney Takehiko Suzue Figure 1 Figure 3 Figure 5

Claims (2)

[Claims] (1) A writing sheet that is wound into a roll or endlessly and stored in a main body case with one side open, with the writing surface facing the open side and movable by winding or rotation; and the main body. a rectangular window-shaped outer frame that fits into the case to press the writing sheet from the outside and stably hold the writing surface of the sheet; It is equipped with a long ruler body that is movably provided, and a holder for a writing instrument that is mounted on the ruler body and is movable in a direction perpendicular to the direction of movement of the ruler body. A movable writing sheet blackboard featuring (2) The ruler and the writing instrument holder are provided movably up to the side of the outer frame, and the width of the ruler is set to be less than the width of the side of the outer frame. Movable writing sheet blackboard as described in Scope 1.