JP2511255Y2 - Plotter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a paper-driven plotter.

[Conventional technology]

As shown in FIG. 8, a cut sheet 4 is placed on a platen 2 supported by legs (not shown), and the cut sheet 4 is held between a drive roller 6 and a pressure roller 8 to drive the drive roller. A plotter that feeds the cut sheet 4 in the left-right direction on the platen 2 by the forward / reverse rotation of 6 while sending the pen 10 in the direction perpendicular to the sheet surface on the drawing roller 10 to draw on the cut sheet 4 It is known.

[Problems to be solved by the invention]

When a long cut sheet is used in the plotter, the edge of the cut sheet may reach the floor surface as shown in the drawing. There is a defect that the cut paper becomes dirty when it comes into contact with the floor, and abnormal noise is generated due to collision with the floor surface.

The present invention aims to eliminate the above defects.

[Means for Solving Problems] In order to achieve the above object, the present invention holds a cut sheet 30 on a platen 16 between a drive roller 24 and a pressure roller 26,
The drive roller 24 is rotated forward and backward to feed the cut sheet 30 in the front-back direction on the platen 16, while the writing instrument 28 is moved to the cut sheet.
In a plotter configured to draw on the cut sheet 30 by controlling movement in a direction traversing the sheet 30, an upright guide surface K for guiding the cut sheet in a substantially vertical direction below the front and rear portions of the platen 16 and the upright guide. The sheet guide members 34 and 32 having a lower curved guide surface W provided at the lower end of the surface K are provided.

[Action]

When the cut sheet 30 is driven in the front-rear direction on the platen 16, the portion of the cut sheet 30 that hangs from the front and rear ends of the platen 16 and the standing guide surface K of the sheet guide members 32 and 34 and the lower curved guide. Guided by surface W and move along these,
The edge of the cut sheet 30 does not come into contact with the floor surface. Also,
Since the edge of the cut sheet 30 is guided in the curved direction by the lower curved surface W, no collision noise is generated on the cut sheet 30.

〔Example〕

Hereinafter, the configuration of the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings.

In FIG. 1, reference numeral 12 denotes a main body of a paper drive type (paper moving type) automatic drafting machine (plotter), which is fixedly installed in a state of a pair of legs 14. In the main body 12,
A platen (paper mounting plate) 16 is arranged, and an image forming head 18 is arranged on the platen 16 along a horizontal rail 20 fixed to the main body 12 so as to be movable in the direction perpendicular to the paper surface. Below the groove of the platen 16, a drawing roller 22 and a driving roller 24 are provided.
Are arranged in association with the rotary drive device. A pinch roller 26 is arranged above the drive roller 24 so as to be capable of pressure contact with the drive roller 24. The pen 28 held by the pen holder of the drawing head 18 is arranged above the drawing roller 22. The pen holder is linked to a lifting drive device (not shown) built in the drawing head 18, and the pen 28 is moved up and down with respect to the drawing roller 22 via the cut paper 30 on the platen 16 and the groove of the platen 16 by the lifting of the pen holder. It is configured to be able to press and separate. Between the pair of legs 14, sheet guide members 32, 34 made of a plate material are disposed below the front and rear ends of the platen 16, and the guide members are provided.
The magnets 32, 34 are fixed to the inner surface of the leg 14 and the lower surface of the main body 12 by fixing means such as a magnet M, an adhesive, and screws. An upright guide surface K and a lower curved surface W are formed on the paper guide members 32 and 34, and the upper end of the upright guide surface K is disposed directly below the front and rear ends of the platen 16 so as to face each other.
Is located at the bottom of the leg 14 with its open end facing outward.

 Next, the operation of the embodiment will be described.

A cut sheet 30 is placed on the platen 16, and the cut sheet 30 is held by the drive roller 24 and the pressure roller 26. When the drawing operation is started, the drive roller 24 rotates in the forward and reverse directions under the control of the controller, and the cut sheet 30 is driven on the platen 16 in the left-right direction in FIG. On the other hand, under the control of the controller, the drawing head 18 moves in the direction perpendicular to the paper surface along the horizontal rail 20, and the pen 28 presses or separates from the cut paper 30 on the drawing roller 22. Above cut paper
A predetermined drawing is applied to the cut paper 30 on the platen 16 by moving the pen 30 in the left-right direction and moving the pen 28 in the direction perpendicular to the paper surface in the drawing. When the cut sheet 30 is driven on the platen 16 in the left-right direction in FIG. 1, the cut sheet 30 hangs from the front end 16a or the rear end 16b of the platen 16. This hanging portion is guided by the upright guide surface K of the paper guide portions 32 and 34 and moves downward, and the end portion of the cut sheet 30 does not make a collision noise on the lower curved surface W when descending, and does not move. You will be guided in the direction of the song. In the above embodiment, the paper guide member
Although 32 and 34 are made of plate materials, as shown in FIG.
You may comprise 32,34. At the upper and lower ends of the seat member 36,
The shafts 38, 40 made of metal are connected, and the shaft 38 at the top is
The magnets M shown in the figure are fixed to the inner surfaces of the upper portions of the legs 14 and 14 and the lower surface of the main body 12. Paper guide member 3
The lower shaft bodies 40 of 2, 34 are detachably hooked on the hooks 42 formed on the lower end horizontal portions 14a of the legs 14, 14. Of course, the shaft 40 may be attached to the horizontal portion 14a of the leg by a magnet, and the upper shaft 38 may be attached to the top of the leg 14 by a hook. The slack portion of the sheet member 36 forms the lower curved guide surface W,
The hanging part forms a standing guide surface K.

〔effect〕

Since the present invention is configured as described above, the cut paper does not reach the floor so that it does not get dirty, and the cut paper does not softly land due to the lower curved guide surface of the paper guide member, and no abnormal noise occurs. There is an effect.

[Brief description of drawings]

FIG. 1 is a sectional side view, FIG. 2 is an external view of a paper guide member,
3 is an external view showing the same, FIG. 4 is an external view showing another embodiment, and FIG. 5 is an external view showing another embodiment of the paper guide member.
FIG. 6 is an external view of the same, FIG. 7 is an external view showing another embodiment, and FIG. 8 is an explanatory view of the prior art. Platen, 4 …… Cut paper, 6 …… Drive roller, 8 ……
Pressure roller, 10 …… pen, 12 …… main body, 14 …… leg body, 16
...... Platen, 18 …… Drawing head, 20 …… Horizontal rail, 22
…… Drawing roller, 24 …… Drive roller, 26 …… Pinch roller, 28 …… Pen, 30 …… Cut paper, 32,34 …… Paper guide member, 38,40 …… Shaft, 42 …… Hook.

Claims (1)

(57) [Scope of utility model registration request] 1. A cut sheet 30 on a platen 16 is driven by a drive roller 24.
And the pressure roller 26, the drive roller 24 is rotated forward and backward to feed the cut sheet 30 on the platen 16 in the front-rear direction, while the writing instrument 28 is controlled to move in the direction crossing the cut sheet 30. In a plotter configured to draw on a cut sheet 30, a standing guide surface K for guiding the cut sheet in a substantially vertical direction below the front and rear portions of the platen 16 and a lower bowl provided at a lower end of the standing guide surface K. A plotter having paper guide members (34, 32) having a curved guide surface (W).