JPH0732142Y2 - Drawing surface detection sensor mounting structure for electronic blackboard device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention reads characters and figures written on a drawing surface with an image sensor, converts them into electric signals and stores them in a memory, and controls a printer with a control circuit. The present invention relates to a drawing surface detection sensor mounting structure for an electronic blackboard device that outputs the stored contents to a printer.

[Prior Art] Conventionally, a drawing surface detection sensor mounting structure of an electronic blackboard device of this type includes a film 3, which is a drawing surface, a film running roller 8, a film 3 running mechanism, etc., as shown in FIG. It is composed of a film drive unit 5, an outer casing frame 10, a control circuit board 11 and a drawing surface detection sensor 2, and the film driving unit 5 can be detached from the outer casing frame 10 in terms of assembly work and internal maintainability. For this reason, the drawing surface detection sensor 2 and the film driving unit 5 are individually fixed to the outer casing frame 10.

[Problems to be Solved by the Invention] In the drawing surface detection sensor mounting structure of the conventional electronic blackboard device described above, the drawing surface detection sensor 2 and the film drive unit 5 are individually fixed to the outer frame 10, Due to the dimensional variation in manufacturing the parts and the mutual position variation in assembling the film drive unit 5 and the drawing surface detection sensor 2, the distance b between the surface of the film 3 and the drawing surface detection sensor 2 is not constant and is normal. The surface detection operation cannot be performed, and as a result, the position adjustment work of the drawing surface detection sensor 2 must be performed after the assembly work is completed. In addition, the mounting position of the drawing surface detection sensor 2 is also limited to the position directly below the film running roller 8 where the film 3 itself is less deformed, and there is a drawback that mounting of other components is restricted.

[Means for Solving Problems] The present invention has been made to solve the above-mentioned conventional problems. As a means for solving the problems, each surface of the drawing surface of the electronic blackboard device having a plurality of drawing surfaces is used. In the drawing surface detection sensor mounting structure of the electronic blackboard device for detecting, a sensor mounting portion having a substantially U-shaped cross section is provided which opens and closes toward the drawing surface and guides the traveling of the drawing surface on one inner surface. A drawing surface detection sensor mounting structure for an electronic blackboard device, characterized in that a drawing surface detection sensor is mounted on the other inner surface.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view showing a drawing surface detection sensor mounting structure of an electronic blackboard device according to an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a perspective view thereof.

The drawing surface detection sensor mounting structure of the electronic blackboard device is openably and closably mounted on the electronic blackboard device including the film running rollers 6 and 7 for rotating the film 3 and the film drive unit 5 mounted on the outer casing frame 10. On the sensor mounting part 1,
The drawing surface detection sensor 2 is attached.

The sensor mounting portion 1 is rotatably mounted on the outer housing frame 10 by a hinge 1a, and a magnet catch 4 is provided at the inner tip thereof. The magnet catch 4 maintains the sensor mounting portion 1 in a closed state. Further, the inner central portion of the sensor mounting portion 1 is formed in a U shape, and is provided with a parallel guide surface 1b and mounting surface 1c. The guide surface 1b has a function of abutting the upper surface of the film 3 to guide the traveling of the film 3, and the mounting surface 1c plays a role of mounting the drawing surface detection sensor 2. The distance a between the guide surface 1b and the mounting surface 1c is within the detectable range of the drawing surface detection sensor 2 when the drawing surface detection sensor 2 is placed on the mounting surface 1c. The size is set so that Therefore, by keeping the distance a between the guide surface 1b and the mounting surface 1c within the performance range of the drawing surface detection sensor 2, the distance b between the film 3 and the drawing surface detection sensor 2 may vary in size when manufacturing individual parts. Even if it occurs, it will be kept within the detectable size range.

The drawing surface detection sensor 2 is mounted and fixed on the mounting surface 1c of the sensor mounting portion 1, and is electrically connected to the control circuit board 9 at one end thereof.

[Effects of the Invention] As described above, the drawing surface detection sensor mounting structure of the electronic blackboard device of the present invention has a substantially U-shaped sensor that opens and closes toward the drawing surface and guides the running of the drawing surface on one inner surface. Since the mounting portion is provided and the drawing surface detection sensor is attached to the other inner surface of the sensor mounting portion, the distance between the film surface, which is the drawing surface, and the drawing surface detection sensor can be kept constant with high accuracy. There is an effect that the function can be operated normally. Further, when detaching and removing the film drive unit, the sensor mounting portion may be opened, and as a result, there is an effect that the assembly work and the internal maintenance work can be performed without any obstacle.

[Brief description of drawings]

FIG. 1 is a plan view showing a drawing surface detection sensor mounting structure of an electronic blackboard device according to an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a perspective view thereof. FIG. 4 is a perspective view showing a drawing surface detection sensor mounting structure of a conventional electronic blackboard device. 1: Sensor mounting part 2: Drawing surface detection sensor 3: Film 4: Magnet catch 5: Film drive unit 6,7,8: Film running roller 9,11: Control circuit board 10: Outer frame

Claims (1)

[Scope of utility model registration request] 1. A drawing surface detection sensor mounting structure of an electronic blackboard device for detecting each drawing surface of an electronic blackboard device having a plurality of drawing surfaces, wherein the drawing surface is opened and closed toward one of the drawing surfaces and the drawing surface runs on one inner surface. A drawing surface detecting sensor mounting structure for an electronic blackboard device, characterized in that a sensor mounting portion having a substantially U-shaped cross section for guiding the drawing surface is provided, and the drawing surface detecting sensor is mounted on the other inner surface of the sensor mounting portion.