JPH0448360B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an underlay for use in an automatic drawing machine that draws a predetermined pattern on a sheet-like member by controlling the relative movement of a writing instrument in the XY coordinate directions with respect to a sheet-like member such as paper. Regarding equipment.

When using a ballpoint pen or cutter pen as a writing instrument in this type of automatic drawing machine,
It is desirable to use a rubber-based underlay. Also,
When using a writing instrument for marking, it is desirable to use a hard underlay such as a steel plate, and when using a pencil writing instrument, it is desirable to use an underlayment with an appropriate roughness on the surface. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to enable a user to select and use a desired underlay from among a plurality of underlays depending on the type of writing instrument such as a lead lead, a felt-tip pen, an ink pen, etc.

The configuration of the present invention will be described in detail below based on embodiments shown in the accompanying drawings.

In FIG. 1, reference numeral 2 denotes a drum drawing board rotatably supported by six shafts on a machine frame 4 fixed to the machine body (not shown), and one end of this is as shown in FIG.
It is linked via gears 8 and 10 to the output shaft of an electromagnetic clutch 10 fixed to the machine frame 4. clutch 1
The input shaft of No. 0 is linked to the output shaft of a DC motor M with a reduction gear via gears 12 and 14. On the surface of the drawing board 2, a plurality of types of underlay members A,
An underlay 16 consisting of B, C, and D is attached and fixed. In FIG. 4, an index member is fixed to one end of an 18-drum drawing board 2, and a plurality of index recesses 18a are formed in it. 2
Reference numeral 0 denotes a mounting plate fixed to the frame 4, and a rotary solenoid 22 is fixed to this, and an arm 24 is fixed to the output shaft of the solenoid 22. The roller 26 at the tip of the arm 24 is a swinging member 28
The other end of the swinging member 28 is rotatably supported by the mounting plate 20 . The swinging member 28 is constantly biased by a spring in the direction of rotation of the hour hand in FIG. 4 about a shaft 35. 3
Reference numeral 6 denotes a locking rod having one end fixed to the member 28, and a claw portion 36a formed at the other end of the locking rod.
It faces the circumferential surface of the index member 18. 38 and 40 are switch operating members fixed to the drawing plate 2, and 42 and 44 are micro switches fixed to the mounting plate 20. 50 in Figure 1
is a Y rail installed on the machine body, to which a Y cursor 52 is movably attached, and a drawing head 54 is fixed to the Y cursor 52. A writing instrument 56 is supported on an elevating body linked to an elevating and lowering drive device for the head 56. The Y cursor 52 is connected to a belt 66 that is stretched between a pulley 62 connected to a motor 60 and a pulley 64 opposite thereto. Reference numeral 68 is a feed roller linked to the drive device, and pressure rollers 70 and 72 are in elastic contact with the surface of this feed roller. Reference numeral 74 denotes a drawing paper, which is held between the roller 74 and the rollers 70 and 72.

Next, the operation of this embodiment will be explained. The feed roller 68 is rotationally controlled to feed the paper 74 in the X direction, the belt 66 is driven to send the drawing head 54 in the Y direction, and the writing instrument 5 is placed on the paper 74 on the drum drawing board 2.
6 to apply a predetermined pattern. Writing instrument 5
When converting the underlay directly below 6, for example, the micro switch 42 is selected to enable on/off operation, and then the motor M is driven. The drive of the motor M is transmitted to the drum drawing board 2 via the electromagnetic clutch 10, and the drawing board 2 is connected to the shaft 6 in the direction of the arrow.
Rotates around the center. When the underlay to be selected is brought directly below the writing instrument 56, the member 38 pushes the switch piece of the microswitch 42, turning the microswitch 42 on. When the micro switch 42 operates, the electromagnetic clutch 10 is released,
At the same time, the rotary solenoid 22 is driven, and the arm 24 is rotated in the counterclockwise direction of rotation of the hour hand in FIG. As a result, the swinging member 28 rotates in the counterclockwise rotation direction in FIG. 4, and the locking rod 36 and the claw portion 36a fit into the fitting recess 18a, so that the drawing board 2 is fixed. In this way, a desired one suitable for the writing instrument 56 can be selected from among the plurality of types of underlays A, B, C, and D fixed to the drawing board 2. Incidentally, as shown in FIG. 5, an underlay 82 consisting of a plurality of types of underlay members A, B, C, D, and E may be fixed to a fan-shaped drawing board 80. In addition, as shown in FIG. 8, a flat drawing board 90 is supported movably in the x-coordinate direction, and an underlay 92 consisting of a plurality of types of underlay bodies is fixed to this drawing board 90, and the output shaft of the motor M is rotated. The gear 9
4, 96, 98 and the rack gear 100 may be used to convert the movement into a linear direction, that is, in the direction of exchanging the underlay. In addition, as shown in FIG.
10 in the direction of the XY coordinate axes within a plane parallel to a fixed table 112 to draw a predetermined pattern, pulleys 114, 116
A desired underlay surface may be positioned below the movement range of the writing instrument 110 by passing an endless belt 118 on which a plurality of types of underlay surfaces are formed and rotating the pulley 116. Also,
As shown in FIG.
4 and by controlling the rotation of the reels 122 and 124, a desired underlay surface may be positioned below the movement range of the writing instrument 110.

Since the present invention is constructed as described above, it has the advantage that a desired underlay can be selected from among a plurality of underlays depending on the writing implement to be used.

[Brief explanation of the drawing]

Fig. 1 is an explanatory side view, Fig. 2 is an explanatory external view, Fig. 3 is a sectional view, Fig. 4 is a plan view, Fig. 5 is a side view showing another embodiment, and Fig. 6 is another embodiment. 7 is a plan view of the same, FIG. 8 is a side view of the same, FIG. 9 is a sectional view of the same, FIG. 10 is an explanatory side view of another embodiment, and FIG. 11 is another example. It is an explanatory side view showing an example of this. 2... Drum drawing board, 4... Frame, 10... Electromagnetic clutch, 12, 14... Gear, 16... Underlay,
18... Index member, 22... Rotary solenoid, 50... Y rail, 52... Y cursor, 60... Motor, 66... Belt, 68...
...Feed roller, 70, 72...Pressure roller, 74
...Paper.

Claims (1)

[Claims] 1. In the underlay device of an automatic drafting machine that presses a writing instrument against a sheet-like member placed on the underlay and moves the writing implement relative to the sheet-like member to draw a predetermined drawing on the sheet-like member, the above-mentioned The underlay is composed of a plurality of types of continuous underlay bodies, the underlay is movably supported, the underlay is linked to a drive device, and one underlay body is selected from the underlay according to the type of the writing instrument. An underlay device for an automatic drafting machine, characterized in that the underlay device for an automatic drafting machine is adapted to be selectively moved and placed within a movement range of the writing instrument.