JPH0351191Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a blackboard copying machine comprising a display section having a display surface such as a board sheet, and a copying section capable of copying the display surface of the display section.

[Prior art]

In a conventional blackboard copying machine capable of copying a display surface, the copying section 3a moves from the first copying position when copying an image written on the display section 1a to the display section 1a as shown in FIG. It is attached so that it can be drawn out from the pedestal 2a that supports it.

When a document is set and copied in the copying section 3a like in a normal copying machine, this copying section 3a
A is used at the second copying position where it is pulled out from the stand 2a.

[Problems with conventional technology]

However, since this copying section 3a has a considerable weight, the center of gravity of the copying section 3a that is pulled out along the guide rail shifts toward the front with respect to the pedestal 2a, and the pedestal that supports the display section 3a shifts. There is a problem that 2a becomes unstable.

On the other hand, in order to solve the above problems, for example,
It is also conceivable to place this copying unit on a dedicated stand (not shown) that is movable on the floor and move it between the first copying position and the second copying position. There is a problem in that the positional relationship of the optical system with the display section 1a at the first copying position tends to be distorted due to surface irregularities, etc., making it impossible to obtain a good image copy of the display section 1a. .

[Purpose of invention]

In view of the above-mentioned problems of the conventional example, the present invention is designed to prevent the positional relationship between the copying part and the display part from being disturbed when the copying part is moved to the first position, and to move the copying part to the second position.
To provide a blackboard/copying machine whose stand does not become unstable when moved to a certain position.

[Key points of the idea]

In order to achieve the above-mentioned object, the present invention includes a display section having a display surface that can be written on and erased with a writing instrument, a pedestal that supports the display section from the floor, and an image or original written on the display surface. In a blackboard copying machine comprising a copying section capable of selectively copying an original placed on a table, and an optical system that guides reflected light that has exposed the display surface to the copying section, the copying section is connected to the optical system. support so as to be movable between a first copying position for copying an image written on the display surface based on the reflected light guided by the copying machine and a second copying position for copying a document placed on the document table; an auxiliary member, the copying section is supported only by the pedestal supporting the auxiliary member at the first copying position, and supported by cooperation of the auxiliary member and the pedestal at the second copying position. It is characterized by

[Example of idea]

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1a is a perspective view of the copying section 3 pulled out to the second copying position from the pedestal 2 that supports the display section 1, with the tip side of the copying section 3 indicated by reference numeral 4 facing the floor. This is a leg-shaped auxiliary member that is supported between the

Note that FIG. 2b shows a state in which the copying section 3 is pushed back into the pedestal 2 and the copying section is placed in the first copying position.

FIG. 3 shows the display unit 1 in these copying machines.
The relationship between the optical system and the photosensitive drum 12 of the copying section 3 is shown.

In this optical system, when a switch on an operating section 5 set in front of the display section 1a is operated, a take-up roller (not shown) rotates and the board sheet 6 passes through guide rollers 7a and 7b in the direction of the arrow shown in the figure. One page is wound up on the guide rollers 7a and 7b.
The light 8 projected and reflected on the 6 surfaces of the board sheets stretched between them reaches the first reflecting mirror 9, the second reflecting mirror 10, and the lens 11, and the scanning light 8a projected from this lens 11 is used for copying. The image is projected onto the surface of the photoreceptor drum 12 of the section 3. This photosensitive drum 12 is rotated in relation to the winding speed of the board sheet 6, and copies are made to a copying material on the copying section side by a normal process.

As a result of the above, the copying section 3, which can be used in two ways by moving forward and backward with respect to the pedestal 2, is connected to the display section 1.
When copying on the side, corresponding positional accuracy with respect to the optical system is required.

4 and 5 show the sliding mechanism of the auxiliary member 4 and the copying section 3 shown in FIG. 1. Note that the copying section 3 is illustrated in a simplified manner.

In FIG. 4, the copying section 3 is in the first copying position of the optical system that copies the display section 1, and the so-called copying section 3 is pushed back into the pedestal 2.

The copying section 3 is moved relative to the pedestal 2 by a guide rail 13. The guide rail 13 consists of a fixed rail 13a fixed to the pedestal 2 side, a moving rail 13b attached to the copying section 3 side, and an intermediate rail 13c interposed between these rails and having rollers 14. It's summery.

For example, as shown in FIGS. 6 and 7 to 9, an appropriate number of rollers 14 are pivotally attached to the intermediate rail 13c, and the rollers 14 are attached to the fixed rail 13a.
Guide rollers 14a, 14b, 14 located above
c, 14d, and floating prevention rollers 14e, 14f provided at positions sandwiching the fixed rail 13a.

In FIG. 5, the copying section 3 is shown in a state in which it has been manually pulled out in front of the pedestal 2 that supports the display section 1, and is in a so-called second copying position. In this state, the guide rail 13 is
The moving rail 13b interposed therebetween moves forward as the copying section 3 is pulled out. Note that the amount by which the copying unit 3 is pulled out is regulated by a stopper, although not shown in the drawing. Also, code 1
Reference numeral 5 indicates a cable for connecting a power source and other electrical systems to the copying unit 3 side.

On the other hand, a leg-shaped auxiliary member 4 is attached to the lower part of the tip side of the copying section 3, as described above, and is located between it and the floor, and this auxiliary member 4 has a caster 16 that contacts the floor. It is installed. The casters 16 are configured to come into contact with the floor surface during the process in which the copying section 3 is pulled out to a predetermined position (second copying position). This relationship is shown in FIGS. 7 to 9.

The fixed rail 13a is provided with an inclined surface 13' at its tip, and when the copying section 3 is retreated to the first copying position as shown in FIG. 7, the rollers 14a,
...14d is located on the upper surface of the horizontal portion of the fixed rail 13a. Therefore, in this state, the casters 16 provided on the auxiliary member 4 are on the floor.
It is designed to float above the FL.

The other caster 17 is used to support the pedestal 2, and the other caster 18 is used to move the pedestal (blackboard/copying machine) 2. This caster 18 is normally lifted off the floor by the adjustment of the adjuster 19, and the mount 2 is connected to the adjuster 19.
Supported by 9. The adjuster 19 is further used to adjust the horizontal state of the blackboard/copying machine when it is transported or placed in a new location. Reference numeral 20 indicates a level attached to the pedestal 2.

In the above, the caster 17 on the auxiliary member 4 side
floating above the floor and the copying section 3 is in the first copying position means that the accuracy of the optical system when copying the image on the display section 1 with the copying section 3 is stabilized regardless of the unevenness of the floor surface. be.

Next, the operation shown in FIG. 8 will be explained. In this case, the copying unit 3 is pulled out from the inside of the pedestal 2 to the left in the figure and is in the process of reaching the second copying position.

Therefore, during the process in which the copying section 3 moves from the first copying position shown in FIG. 7 to the next second copying position shown in FIG. 9, the guide rollers 14a located on the horizontal surface of the fixed rail 13a... 14d rotates frictionally as the moving rail 13b moves when the copying section 3 is pulled out, and as a result, the intermediate rail 13
c follows the moving direction of the moving rail 13b by the amount of rotational movement of each guide roller 14a...14d (see FIG. 8). Then, as the intermediate rail 13c moves, the guide roller 14b on the tip side moves to the fixed rail 13a.
When reaching the inclined surface 13', the roller 14b position is lowered by the load on the moving rail 13b side, and due to this lowering, the caster 17, which had been moving while floating, comes into contact with the floor surface FL.

Thus, when the copying section 3 is pulled out after the casters 17 come into contact with the floor surface FL, the casters 17
The moving rail 13b is moved by the following rollers 14c.
side loads are supported. Note that the rollers 14f serve to prevent the rear end side of the pulled-out copying section 3 from jumping up, and most of the load of the copying section 3 is received by the auxiliary member 4 and the caster 16 side, so that the intermediate rail 13
A large moment is not applied to the c side.

Therefore, when the copying section 3 guide is pulled out to the second copying position, the document presser 3b of the copying section can be freely opened and closed, and the copying section 3 can be used for normal document copying.

FIG. 10 shows an example of a spirit level 20, the level position of which can be adjusted using an adjustment screw 21.

In the above embodiment, the leg-shaped auxiliary members 4 that support the copying section 3 that is pulled out are
The auxiliary member 4 has a structure in which it is located at the bottom of the auxiliary member 4 facing the floor, but in addition to the above-mentioned embodiments, the auxiliary member 4 may be of a folding type that is configured to be extendable or foldable. .

[Effect of idea]

In the device of this invention, as described above, a copying section is provided on a stand that supports a display section, and this copying section is pulled out of the stand from a first copying position of the display section and moved to a second copying position for copying originals. In the mechanism where
The load of the copying section pulled out to the second copying position can be distributed to the floor surface via the auxiliary member, and the pulled out copying section can be stably supported by the pedestal supporting the display section and the auxiliary member.

Further, when the copying section is set at the first copying position, since the copying section and the display section are supported by a single pedestal, an accurate positional relationship can be maintained regardless of the unevenness of the floor.

[Brief explanation of drawings]

Fig. 1 shows an embodiment of this invention, in which Fig. 1a is a perspective view of the copying section pulled out to the second copying position, and Fig. 1b is a perspective view of the copying section placed in the first copying position. , FIG. 2 is a perspective view of the conventional example with the copying section pulled out to the second copying position, FIG. 3 is an explanatory diagram of the optical system for image copying on the display section side of this device, and FIG. 4 is a perspective view of the conventional example with the copying section pulled out to the second copying position. FIG. 5 is an enlarged rear view of the main parts when the copying section is set at the second copying position; FIG.
FIG. 6 is a partially enlarged view of the intermediate rail, FIGS. 7 to 9 are explanatory views of the movement of casters belonging to the guide rail and the auxiliary member, and FIG. 10 is an explanatory view of the level. 1... Display section, 2... Stand, 3... Copying section, 4
...Auxiliary member, FL...Floor surface.

Claims (1)

[Scope of utility model registration request] a display unit having a display surface that can be written on and erased with a writing instrument; a pedestal that supports the display unit from the floor; In a blackboard copying machine, the copying machine includes a copying section capable of making copies, and an optical system that guides reflected light that has exposed the display surface to the copying section, wherein the copying section is configured to display the display based on the reflected light guided by the optical system. an auxiliary member movably supported between a first copying position for copying an image written on a surface and a second copying position for copying a document placed on the document table; A blackboard/blackboard copying machine characterized in that at a first copying position, the auxiliary member is supported only by the pedestal supporting the auxiliary member, and at the second copying position, the auxiliary member and the pedestal cooperate with each other to support the auxiliary member.