KR890005991Y1 - Pen type recording devices - Google Patents

Abstract

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Description

Pen recorder

The accompanying drawings are all for explaining the pen-type recording apparatus according to an embodiment of the present invention, Figure 1 is a perspective view of the main portion of the recording apparatus.

2 and 3 are side and back views of a rotating drum mounted to the recording apparatus.

4 is a side view in cross section with a portion showing a state in which the pen is taken out of the rotating drum.

* Explanation of symbols for main parts of the drawings

5: carriage 6: recording paper

12: rotating drum 17: pen

18: return leaf spring 19: header

26: main part 26a: bottom of the main part

27: floating leaf spring 28: arm

28a: tip of arm

The present invention relates to a pen-type recording device suitable for X-Y flutters, graphic printers, alphanumeric printers and the like.

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

Side frame Guide shafts (3) and (4) are provided between (1) and (2) in parallel to the width direction of the recording paper (6), and the carriage (5) slides along the guide shafts (3) and (4). Is attached.

The guide shaft 3 has the shape of a coin having a small cross section at least over the entire length of the moving region of the carriage 5, and is rotatably supported by the side frames 1 and 2.

Both ends of the carriage 5 are coupled to both sides of the carriage 5, the rope 7 is guided to the pulley 8 and wound around the drive pulley 10 of the stepping motor 9, the intermediate portion of which can be reversed. In response to the blackout and the reverse of the stepping motor 9, the carriage 5 slides on the guide shafts 3 and 4.

The platen 11 serves both a printing stand and a paper feed, and the recording paper 6 is conveyed in either of its length directions in the rotational direction of the platen 11.

The rotating shaft 13 is installed between the front plate 14 and the rear plate 15 on the carriage 5, and the rotating drum 12 is attached to the rotating shaft 13 to rotate integrally therewith.

At a predetermined position on the outer circumference of the rotating drum 12, the uneven portions 16 for positioning are formed at equal intervals over the entire circumference, and a pen selection ratchet 22 is provided in the neighborhood. The number of recesses of the uneven portion 16 and the number of teeth of the pen selection ratt 22 are n times the number of the pens 17 (n is a natural number). A plurality of pens 17 are attached to the rotating drum 12 at equal intervals on one circumference around the rotating shaft 13.

The tip of the pen 17, i.e., the tip of the pen 17a, protrudes from the rotating drum 12 in the direction of the recording paper 6, but the pens 17 of the pens 17 are held by the return plate springs 18. Force is applied in the direction away from the recording sheet 6. Thereafter, neither the tip of the pen tip 17a is brought into contact with the recording paper 6, and printing is not performed, but the hammer 19 inserted into the groove portion 21 of the front plate 14 has a hammer shaft. When rotating according to the rotation of the 20, the projection from the rotating drum 12 of the pen 17 located at the top of the rotating drum 12 is hit by the hammer 19, the return plate spring (18) The tip of the pen 17a protrudes in response to the elasticity of the sheet so that printing is performed in contact with the recording sheet 6.

As the pen 17, a felt pen or the like having a thin diameter impregnated with an exchange core of a ball pen and a nonvolatile ink can be used.

One end of the aforementioned guide shaft 3 penetrates through the side frame 2 and protrudes outward, and a rotation lever 23 is fixed to the end thereof. The actuator 25 of the pen selection plunger 24 is always in contact with one end of the rotation lever 23, and the guide shaft 3 passes through the rotation lever 23 by the operation of the pen selection plunger 24. This constant angle is to rotate.

As shown in Figs. 2 to 4, the outer periphery of the rotating drum 12 is provided with a recess 26 for receiving the pens 17 at equal intervals along the circumferential direction, and the recess 26 is a rotating drum. The opening is directed toward the radially outer side of (12). A leaflet-shaped return leaf spring 18 is provided on the front end side of the recess 26 opposite to the recording paper 6, and the center portion of the leaf spring 18 is fixed to the front surface of the rotating drum 12. As shown in FIG.

On the other hand, the rear end side of the main portion 26 is provided with a leaf leaf floating leaf spring 27, the central portion of the leaf spring 27 is fixed to the rear of the rotating drum (12). The leaf springs 27 are provided with a plurality of arms 28 radially corresponding to the respective recesses 26, and the tip 28a of each arm 28 is slightly smaller than the bottom face 26a of the recess 26. The pen 17 swims in each of the recesses 26, respectively, between the floating leaf springs 27 and the floating leaf springs 27 due to the elasticity of the return leaf springs 18. As shown in FIG. Is elastically maintained at.

When printing, the rear end of the selected pen 17 is removed from the arm tip 28a of the floating leaf spring 27 by pushing by the hammer 19, and the pen 17 slides forward in the recess 26. The pen tip 17a is in contact with the recording sheet 6.

With the retraction of the hammer 19 and the elasticity of the return plate spring 18, the pen 17 is retracted and returned to its original position, and again between the return plate spring 18 and the floating leaf spring 27 Resilient at

When the pen 17 is replaced with a new one due to the exhaustion of ink, the elastic clamping force between the returning leaf spring 18 and the floating leaf spring 27 As shown in FIG. 4, the pen 17 is grasped with a finger and pulled forward.

The rear end of the pen 17 then travels over the arm tip 28a of the floating leaf spring 27 and thereby overtakes the bottom 26a of the recess 26 so that the rear end is easy to be removed. It is taken out from the bottom face 26a of the recess 26 so that it is easy to remove, and instead, a new pen 17 is inserted into the transparent hole of the return leaf spring 18 so that the pen tip 17a is inserted into the recess. 26, and pushes the pen 17 toward the return plate spring 18 until the rear end of the pen 17 crosses the arm tip 28a of the floating leaf spring 27 and enters the recess 26. .

When the pen 17 is released, the pen 17 is pushed back by the elasticity of the return plate spring 18, and is elastically sandwiched between the return plate spring 18 and the floating leaf spring 27.

The present invention has a configuration as described above, it can provide a pen-type recording device that is easy to replace the pen.

Claims (1)

Push the pen of the hinge selected from a rotating drum 12 having a plurality of pens arranged in the circumferential direction, a carriage 5 mounted in the rotating drum and moving in the width direction of the recording paper 6, and a plurality of pens described above. In the pen-type recording apparatus provided with the extrusion means etc. which contact the tip of the pen with the recording paper 6, The recessed part 26 which accommodates the said pen one by one is formed in the outer peripheral part of the drum 12, respectively, and the recessed part A leaf spring 18 for pushing the pen to the rear end side is provided on the front end side opposite to the recording paper 6 described in (26), while the rear end of the pen is injured at the rear end side of the recess 26. A pen-type recording device, characterized in that a penetrating arm tip portion 28a is provided, and the pen is in the recessed portion 26 and is protected between the leaf spring 18 and the arm arm tip. .