JPH048600A - Mounting device of housed penholder of recording apparatus - Google Patents

Abstract

PURPOSE:To conduct mounting and removing a housed penholder and spindle smoothly and accurately by providing the outer periphery of a spindle with a cam part and key way forming a turning slope and by providing, in the manner of corresponding to the spindle, the fitting hole of the housed penholder with two round holes, slope and key part. CONSTITUTION:When a house penholder 7 is mounted to a spindle 15, the penholder is lowered in the manner of being held to the spindle from above, while a fitting hole is made to face the spindle 15. Then, the key part 13a of the large diameter round hole 14a of the penholder 7 comes in contact with the top end 17a or slope of the cam part 17 of the spindle 15 and the penholder falls by its self-weight while rotating along the left side slope L or right side slope R so that the key part 13a fits into a keyway 8 and the penholder 7 is mounted to the spindle 15. When the housed penholder 7 is desired to be replaced with a housed penholder put in another place during a recording work, the rotation of the spindle 15 is stopped and the spindle is rotated in the opposite direction so that the key part 13a and key way 18 is put out of fitting. Then, the penholder 7 rises along the slope of the cam part 17 so that the penholder 7 and spindle 15 is put out of fitting.

Description

[Detailed description of the invention] [Industrial application fields] In a recording device such as a so-called XY plotter.

The storage pen holder is always equipped with multiple pens, but as a result of these pens becoming worn out or due to the need to use other recording pens, the storage pen holder may not be replaced with another storage pen holder equipped with multiple pens. There are times when it is necessary.

The present invention relates to an improvement of a loading device for a storage pen holder of a recording device used for such purposes.

[Prior Art] Conventional loading devices for storage pen holders in this type of recording apparatus include configurations shown in a first example and a second example.

a. First Example As shown in FIGS. 4(A) and 4(B), two . If a fitting hole provided at the center of a storage pen holder (not shown) is applied from above to the VIM, M2, the pen holder will fit into the V groove M. +, M2
The concave and convex portions of the two pieces fit together, and the two pieces are loaded.

b. Second example Shown in Figures 5 (a) and (b).

A plurality of (for example, three) grooves N1 to N3 are formed on the spindle S side as shown in the figure, and on the other hand, a storage pen holder (
A fitting hole provided at the center of the pen holder (not shown) is provided with a convex portion corresponding to these grooves, and the pen holder is rotated while being supported by hand until the concave and convex portions of both sides correspond to each other. They are fitted and both are loaded.

[Problems to be Solved by the Invention] By the way, the above-mentioned conventional example has the following problems (issues).

■In the first example, since the spindle S has two fitting V-shaped holes, if the storage pen holder is not attached or detached from the spindle without careful There is a chance that the relative position will change and you will have to reset the initial settings when reloading.

Therefore, when loading, it is complicated to confirm the relative positions of the two.

(2) In the second example, when loading, it is necessary to always rotate the storage pen holder until it reaches the fitting position.

Furthermore, if excessive force is applied to the spindle during reloading, there is a risk that the motor will step out.

SUMMARY OF THE INVENTION An object of the present invention is to provide a loading device for a storing pen holder of a recording device, which solves the above-mentioned problems of the conventional device.

[Means for Solving the Problems] The present invention forms one axis in the moving direction of the recording pen, and moves the recording medium or the first axis in a direction perpendicular to this axis to move the recording medium or the first axis to another axis.
In a recording device that forms a desired visual image by moving a recording pen up and down in a direction perpendicular to a plane that forms an ellipse with these two axes.

It is equipped with a spindle and a storage pen holder for storing a plurality of recording pens, and the outer periphery of this spindle is equipped with a storage pen holder for storing a plurality of recording pens.

A rotating slope-shaped cam part and a key holder are formed at the lower end of the cam part, and the fitting hole provided in the center of the storage pen holder has a key part that fits into the key holder of the spindle and the cam part. The insertion of the pen holder is facilitated by forming a large-diameter hole in the shape of a missing circle and a small-diameter hole at the tip of the hole that fits into the rotating shaft of the spindle via a sloped portion that serves as a pre-assembly. When lowering the dowel by placing it against the upper end of the spindle.

The present invention relates to a loading device for a storage pen holder of a recording device, which is guided by its own weight to a cam portion to load both.

[Example] The present invention will be specifically explained below with reference to an example shown in FIGS. 1 to 5.

FIG. 1 is a plan view showing the overall configuration of the recording apparatus.

In the figure, reference numeral 1 denotes a flat plate (platen), on which recording paper (not shown) is moved, for example, in the Y-axis direction.

Reference numeral 2 denotes a guide rod in the X-axis direction, which maintains a relation value of 1 with respect to the flat plate 1 and is fixed to the support block 3.

The movable element 4 can freely run on this guide rod 2.

The mover 4 is connected to a drive motor via a wire or a belt (none of which are shown), and can be positioned with a resolution of approximately 0.025 mm.

Also, the recording paper can be freely reciprocated on the flat plate 1 by a friction wheel connected to the drive motor, and is approximately 0.02 mm in the X-axis direction.
Positioning is possible with a resolution of 5m.

5a is a fixed arm, 5b is a movable arm, and these 5a,
The movable pen holder stand 5b has an oval shape, and is attached to the side wall of the movable block 4'' which is provided on the movable element 4 so as to be movable in the vertical direction (in the present example, the Z-axis direction), and the movable arm 5b is elastically supported with respect to the fixed arm 5a so as to be openable at a predetermined position.

On the other hand, the storage pen holder 2, which has a configuration of multiple pairs similar to the mobile pen holder 1, has multiple pairs of fixed arms 9 a +
~9a @ and movable arms 9bl~9b, and a plurality of pairs (six pairs in the embodiment) thereof are arranged radially around the outer periphery of the boss portion 11 of the turret 8.

10a1 to 10a6 are respective pairs of fixed arms 9a
These recording pens are held by movable arms 9 b + to 9 b s and are ready for use.

Turret 8 revolves around the central axis in the Z-axis direction.

So that it can be positioned with a decomposition layer at an angle of about 1.8 degrees.

It is rotationally driven by a drive motor (not shown) via a spindle top 5, which will be described later.

Reference numeral 12 indicates a recording pen in use, which is held by a portable pen holder.

The above is a known structure.

The present invention is characterized by the structure of the storage pen holder described below and the structure of the corresponding spindle.

In other words, in the present invention, the boss portion 11 of the storage pen holder
The fitting hole provided at the center is not a straight hole, but a circle with a diameter d2 that is occluded only at the part of the key part 13a that protrudes in a knitted shape as shown in FIGS. 2(a) and 2(b). A hole 14a (larger in diameter than the circular hole 14b) is formed in the vertical direction with a length of h2, followed by a tapered slope portion with a length <h, and further a circular hole 14b (circular hole) with a diameter of d. (small diameter compared to the

In this case, the diameter d is the diameter of the spindle 15 shown in FIG. 3, and therefore the fitting hole of the pen holder has a diameter d2 larger than this.

Figures 3 (a) to (c) show the spindle 1j of the present invention, in which (a) is a perspective view, (b) is a front view, and (c) is a perspective view.
is a right side view of (b).

As shown in the figure, the spindle 15 has a rotating shaft 1 with a diameter d.
The cam part 17 is formed to have a spiral slope having a diameter d2 concentric with the cam part 6, a groove 18 is formed at the lower end of the cam part 17, and one disc is connected to the lower surface.

The structure of the above embodiment shows the structure of a paper moving type recording device in which one axis is formed by the moving direction of the recording pen, and the other axis is formed by moving the recording medium in a direction perpendicular to this axis. 1. In addition, the present invention can exhibit similar effects when applied to a flatbed type recording device in which a recording medium is fixed and recording is performed by a first axis and a second axis that are substantially perpendicular to each other.

[Function] In the above configuration, when the storage pen holder 7 is loaded onto the spindle 5, when the pen holder 7 is lowered so that the fitting hole of the pen holder 7 faces the spindle 15 from above, the large diameter circle of the pen holder 7 will open. Key part 13a of hole 14a
comes into contact with the upper end 17a or sloped surface of the cam portion 17 on the spindle top 5.

As shown in FIG. 3(C), the cam part 17 rotates along the left side slope R or the right side slope R and falls under its own weight, and the key part 13a fits into the key arm 18, and the pen holder 7 is attached to the spindle 15. loaded.

During recording work with the recording device configured as described above, if it is desired to replace the currently set storage pen holder with a separately placed storage pen holder, the rotation of the spindle 15 is stopped and the pen holder is replaced. By rotating the key part 13a in the opposite direction to the loading direction, the key part 13a and the key arm 18 are disengaged, and by further rotating the pen holder 1, the pen holder 1 is raised along the slope of the cam part 17, and the pen holder 1 and the spindle are separated. The upper part 5 will be disengaged.

Therefore, it is sufficient to load the separately placed storage pen holder onto the spindle 15 in the manner described above.

[Effects of the Invention] Since the loading device for the storage pen holder of the recording device of the present invention is configured as described above, it has the following excellent effects.

■The pen holder for storage has a simple structure with a cam part and a key arm that form a slope turned around the outer periphery of the spindle, and a fitting hole for the storage pen holder. The spindle can now be attached and detached smoothly and precisely.

Moreover, in this case, by fitting the key part to the key arm, the storage benbolder and the spindle can maintain a predetermined relative position and can be loaded quickly and accurately.
Reloading has become easier, and as a result, the workability and reliability of the recording device has also been improved.

[Brief explanation of drawings]

1 to 3 each show an embodiment of the present invention,
Figure 1 is a plan view showing the overall structure of the recording device;
Figures 2 and 3 are enlarged views showing the detailed structure of the boss and spindle of the storage pen holder, which are the main parts in Figure 1, respectively. Figure 2 (A) is a longitudinal sectional front view, and (B) is a bottom view. be. 3(A) is a perspective view, FIG. 3(B) is a front view, and FIG. 3(C) is a right side view. 4 and 5 show a conventional first example and a second example, respectively, and each figure (A) is a perspective view. Each country (B) is a bottom view. 'L: 13a: 14a, 14b: 15: 17: 18: Storage pen holder key part circular hole spindle 16: Rotating shaft cam part key leaf

Claims (1)

[Claims] 1. The direction of movement of the recording pen forms one axis, and the recording medium or the first axis is moved in a direction perpendicular to this axis to form another axis, and with respect to the plane composed of these two axes. A recording device that forms a desired visual image by moving a recording pen up and down in orthogonal directions includes a spindle and a storage pen holder that stores a plurality of recording pens, and the outer periphery of the spindle has a rotating slope shape. A key groove is formed in the cam part of the spindle and a key groove at the lower end of the cam part, and the fitting hole provided in the center of the storage pen holder has an occluded circular shape having a key part that fits into the key groove and cam part of the spindle. By forming a large-diameter circular hole and a small-diameter circular hole that fits into the rotating shaft of the spindle through a tapered sloped end of the circular hole, the fitting hole of the pen holder can be connected to the upper end of the spindle. 1. A loading device for a storing pen holder of a recording device, characterized in that when the pen holder is placed against a cam portion and lowered, the cam portion is guided by the weight of the cam portion and both are loaded.