JPS62174162A - Pen-type recorder - Google Patents

Abstract

PURPOSE:To enable any pen of different writing pressure to be properly dealt with without any change in a head carriage mechanism and any increase in the number of types of pen cassette by changing the height of a convex shape of a pen selection pressing drum. CONSTITUTION:For instance, if the a-a' surface of a pen selection pressing drum 18 stops at the highest point position of a pen selection lever 15, a solenoid 21 is attracted and wire 19 is caused to pull the pen selection lever 15-1-15-4 through a pulley 20-1-20-4. The pen selection lever 15-2, 15-3, 15-4 does not get any sag because of a convex shape. However, the pen selection lever 15-1 sags because of there being no convex part where the pen selection lever 15-1 is located, pushing up a pen lever 14-1. Thus a pen 13-1 is pressed onto paper and accordingly the first pen is allowed to draw a pattern with the heaviest pen pressure in this case. This enables a pen used to deal with a heavy pressure. Thus it is possible to select any appropriate pen and also select any suitable pen pressure tanks to the convex shape and rotation of the pen selection press ing drum 18.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention selects and uses multiple types of pens such as different colors,
The present invention relates to a pen-type recording device that performs printing and drawing by performing X-Y operations.

(Prior Art) Conventionally, in this type of device, when using various pen types such as water-based ballpoint pens, fiber pens, ceramic pens, and ink pens, there is a mechanism that makes the shape the same and applies pen pressure to the pen types. By setting the pen pressure to be the same and setting the pen pressure to a certain value, for example, a relatively low value, it was possible to use a plurality of pen types. However, if you want to use the same machine to print and draw with an oil-based pressurized ballpoint pen that requires a pen pressure different from the pen pressure set above, such as a high pen pressure, you may need to change the head carriage mechanism or the length of the pen. There were shortcomings that needed to be changed.

FIGS. 6 and 7 show an example of the prior art. When the solenoid 4 is attracted, the pen 7 is pinched onto the platen roller 2 via the lever 5 by the pressure of the pressure spring 8. Printing and drawing are performed by pressing the paper 1 sent by the roller 3 and performing x-y operations. Next, when the solenoid 4 is turned off, the lever 5 is pushed by the reset spring 6 and the pen 7 is released from the paper 1.

Here, if the shape of the pen 7 is the same, the pen pressure is determined by the pressure spring 8, and only pen types within this spring pressure range can be used. If it was desired to use a pen with a different pen pressure with this mechanism, the pressure spring 8 had to be replaced with a pressure spring with a different spring constant.

In addition, as shown in FIGS. 8(a) and 8(b), when corresponding to pen types without changing the head carriage mechanism, the total length is only t as in pen 7-1 and pen 7-2. I had to use a different pen to apply pen pressure.

Furthermore, as a method of adapting to pen pressure without changing the head carriage mechanism, there is a method of storing a plurality of pens in a cassette and providing a pen pressure applying mechanism in the cassette. However, in this case, it is necessary to make cassettes corresponding to different pen pressures, which has disadvantages that affect cost and operability.

(Problems to be Solved by the Invention) Therefore, an object of the present invention is to solve the problems of the prior art without creating cassettes corresponding to each type of pen pressure required for writing on paper. shall be.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a pen-type recording device in which a plurality of types of pens are provided correspondingly to each pen, and each pen is connected to a recording paper. at least one for crimping to
levers (14, 15) and drive means (19, 15) for driving the levers to rotate about their fulcrums.
20, 21), which has a plurality of rows of protrusions on its surface that regulate the movable position of the lever when the lever is driven by the driving means, and is used among a plurality of pens depending on the height of the protrusions. A rotatable drum (18) on which pen settings and pen pressure settings corresponding to the type of pen to be used have been set in advance, and a desired row of projections among the rows of projections are placed on the lever. It is characterized by comprising means for rotating the drum so as to engage the drum and selecting the pen to be used and the pen pressure thereof.

(Function) Since the present invention has the above-described configuration, in order to operate the present invention, both the pen selection means inside the Herad carriage and the means for applying pen pressure corresponding to the type of pen must be used. Printing and drawing are performed by rotating the drum, stopping at the selected position of the pen you are trying to write on and at the position where the pen pressure corresponding to the type of pen is applied, and performing pen up-down movement and X-Y movement. implement.

(Embodiment) To explain one embodiment of the present invention, as shown in FIGS. 1 and 2, this pen type recording device includes a pen 13, a reset spring 12, a pen lever 14, a pen selection lever 15, a pen Selective pressure drum 18, wire 19, pulley 2
0 and a solenoid 21.

The convex portions of the pen lever 14, the pen selection lever 15, the pulley 20, and the pen selection pressing drum 18 each correspond to a plurality of zero pens. In this embodiment, a case where n:4 will be explained. That is, as shown in FIG. 2, corresponding to the first pen, second pen, third pen, and fourth pen, respectively,
Pen lever 14-1.14-2.1 with shaft 16 as a support shaft
4-3.14-4, pen selection lever 15 whose one end is in contact with one end of the pen lever with shaft 17 as a support shaft = 1.1
5-2.15-3.15-4, pen selection lever 15-1
A pulley 20-1.20-2.20-3.20-4 is provided which holds the wire 19 engaged with the other end of the wire 15-4.

As shown in FIG. 3, the pen selection pressure drum 18 has a convex portion on the surface of the drum that regulates the position of the stop point of the rotation of the pen selection levers 15-1 to 15-4 about the shaft 17. They are provided in a line along each of the plurality of cylindrical generating lines.

The height (including 0) of each convex portion is set in advance in accordance with whether or not the pen is used and the pen pressure during use. Furthermore, among the four (generally n) pens in this embodiment, a convex portion with a height of δ is formed at the position of the unused pen, and a convex portion with a height of δ is formed at the position corresponding to the used pen. By changing the pen pressure is set. In the example of FIG. 4, the first pen is selected for use. The height of the convex portion is set to O to obtain the maximum pen pressure. In the example of Fig. 5, the second to fourth
No pen is selected, the first pen is selected, and by setting the height of the convex portion to δ1, the pen pressure is set weaker than in the case of FIG. 4.

An example of the operation of this embodiment configured as described above will be described. Assuming that the a-a' plane of the pen selection pressure drum 18 is stopped at the highest point of the pen selection lever 15, when the solenoid 21 is sucked, the wire 19 is moved to the pulleys 20-1 to 20-20. - Pen selection lever 1 via 4
Pull 5-1 to 15-4. Here, pen selection lever 1
5-2.15-3.15-4, as shown in FIG. 4, no deflection occurs due to the shape of the convex portion.

However, since there is no convex portion in the position of the pen selection lever 15-1, the pen selection lever 15-1 is bent by δ, pushing up the pen lever 14-1 and pressing the pen 13-1 against the paper.

Therefore, in this case, the first pen draws with the highest pen pressure, and the pen used can handle a large pressure.

Next, when the b-b'' surface of the pen selection pressure drum 1B in FIG. 3 is stopped at the above position, the amount of deflection changes from δ to δ1 as shown in FIG. 5 due to the suction of the solenoid 21. At this time, the first pen 13-1 can use a pen with a weaker pen pressure than in the case of FIG.

In this way, the shape of the convex portion and the rotational movement of the pen selection pressure drum 18 make it possible to select the pen and the pen pressure.

(Effects of the Invention) As explained above, by changing the height of the convex shape of the pen selection pressure drum, pens with different pen pressures can be used without changing the head carriage mechanism or increasing the types of pen cassettes. There is an advantage in being able to respond.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the mechanism of a pen-type recording device according to an embodiment of the present invention, and FIG. 2 shows a pen lever 14, a pen selection lever 15,
A detailed view of the pulley 20, FIG. 3, shows the pen selection pressure drum 1.
8, FIGS. 4 and 5 show cross-sectional views of the pen selection crimp lever. FIG. 6, FIG. 7, and FIG. 8 are explanatory diagrams of a helad carriage mechanism of a conventional pen-type recording device. 12...Reset spring, 13...Pen, 14
...Pen lever, I5...Pen selection lever, 16,
17.22...shaft, 18...pen selection pressure drum,
19...Wire, 20...Pulley, 21...Solenoid. Patent Applicant: Ricoh Electronic Industries Co., Ltd. Figure 7 βO Figure 3 Condolences 14 Figure 7 Figure 8 (a) (b)

Claims (1)

[Scope of Claims] A plurality of types of pens, at least one lever provided corresponding to each pen for pressing each pen onto recording paper, and rotating the lever about its fulcrum. It has a driving means for driving the lever in such a manner that the lever is driven by the driving means, and a row of a plurality of convex portions on the surface that regulates the movable position of the lever when the lever is driven by the driving means, and the height of the convex portion allows the lever to move among the plurality of pens. A rotatable drum is provided with settings for the pen to be used and pen pressure settings corresponding to the type of pen to be used, and a desired one of the rows of projections is engaged with a lever. 1. A pen-type recording device comprising means for rotating said drum so as to select a pen to be used and a pen pressure thereof.