JPH0756232Y2 - Pen cap support structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a support structure of a pen cap used for a pen stock of a pen type drawing device (hereinafter referred to as an XY plotter).

[Prior Art] Generally, a plurality of pens are used in an XY plotter, the pens being used are held by a pen carriage and moved, and the other pens that are waiting are the pens provided on one side of the drawing board. It is now housed in stock. The pen stock is provided with a cap so that the pen tip of the pen in the standby state does not become dry when writing is started, so that the pen tip can be prevented from drying.

In addition, as a pen used for drawing, generally, an ink pen having a tubular pen tip and a middle needle so that ink is leached out from the tip opening portion to perform writing, or a fiber core provided with the tip portion or the tip Fiber pens and the like, which are used to write on the side surface near the part, are selectively used depending on the type of drawing.

[Problems to be Solved by the Invention] However, these pens cannot share the same pen cap because of their different pen tip structures due to their structures, and a dedicated pen cap may be used depending on the type of pen used. Need to use.

That is, in the case of an ink pen, the inner bottom surface of the pen cap needs to be in close contact with the pen tip so as to close the opening of the pen tip, and in the case of a fiber pen, the pen tip does not contact the cap and the pen tip portion It is necessary to cover things in a sealed state. Therefore, in the conventional XY plotter,
Pen caps of different shapes are used properly according to the purpose. As a result, when using different pens, the problem of requiring a large number of pen caps and the need for a separate storage location to prevent the loss of unused pen caps that are not stored in the pen stock are needed. There are problems such as.

Further, in the conventional XY plotter, as shown in FIG.
The pen holder 55 made of rubber is attached to the through hole 51 provided in the ring-shaped cap holder 50 as shown in (b), or the cap holder 50 having a cylindrical tip as shown in FIG. A pen cap 55 fitted in a through hole 51 provided in the main body is mainly used. However, since such a pen cap mounting portion is mounted in a narrow space, a complicated operation is required to attach and detach the pen cap, and tweezers 60 or a dedicated jig may be required in some cases.

Further, the pen cap 55 as described above is adapted to be mounted by repeating the operation of temporarily deforming in a so-called force fitted state, and when performing this operation using a jig such as tweezers, There is also a problem that the main part of the pen cap is easily damaged by being scratched.

The present invention has been made under such circumstances, and an object thereof is to provide a pen cap support structure that can be commonly used for different types of pens such as an ink pen and a fiber pen, and that can be easily attached to and detached from a cap support. And

[Means for Solving the Problems] In order to achieve the above object, the support structure of a pen cap according to the present invention is arranged below a pen holder of a pen stock that holds a waiting pen, and is held by the pen holder. A pen cap support structure for preventing the pen tip of a pen from drying, comprising a substantially ring-shaped pen cap support, and an annular holding groove made of a soft elastic body on the outer peripheral surface for engaging with the cap support. The inner cylinder having a bottom is disposed inside the formed cylindrical main body coaxially with the cylindrical main body, and the pen cap is connected by a connecting portion, and the opening side of the inner cylinder is directed upward. When engaged with the cap support in this state, the tip of the pen held by the pen holder can be fitted in the inner cylinder in a sealed state to prevent the tip of the pen from drying, and the opening of the inner cylinder can be prevented. Side When the pen is engaged with the cap support in a downward direction, when the pen of the type that allows the ink to seep out from the tubular pen tip is held in the pen holder, the pen is placed on the outer bottom surface of the inner cylinder. The first gist is the support structure of the pen cap in which the pen tip abuts to prevent the pen tip from drying, and the cap support has a substantially ring-shaped portion having a notch for inserting the pen cap. Provided, when the pen cap is pressed so that the cross-sectional shape becomes an elliptical shape, and then the pressing is released after inserting the pen cap into the cap support body from the notch, the pen cap is restored to its original state by elasticity, A pen cap support structure according to claim 1, wherein the holding groove of the pen cap and the cap support member are engaged with each other.

[Operation] That is, in the pen cap support structure according to the present invention, a bottomed inner cylinder is coaxially arranged inside a cylindrical main body having a holding groove formed on the outer peripheral surface thereof so that the pen cap can engage with the cap support. When the cap is supported with the opening side of the inner cylinder facing upward, the tip end of the pen held by the pen holder can be fitted in the inner cylinder in a sealed state. It is designed to prevent the pen tip from drying. In addition, when the opening side of the inner cylinder faces downward and engages with the cap support to hold the ink pen in the pen holder, the pen tip of the ink pen comes into contact with the outer bottom surface of the inner cylinder to close the pen tip opening. It becomes possible to prevent drying.

As described above, in this pen cap support structure, when the opening side of the inner cylinder is directed upward and engaged with the cap support body, it is impossible to prevent drying unless the entire tip portion such as a fiber pen or a writing brush is sealed. It can be used for such a pen, and when it is engaged with the cap support with the opening side of the inner cylinder facing downward, it can be used for a pen of the type that oozes ink from the tubular pen tip, Can be used for two types of pens.
Therefore, unlike the conventional case, one pen cap is required for one pen, and as a result, a large number of pen caps are not required, and storage of unused pen caps that are not stored in the pen stock is eliminated. There is no need for the problem.

In this invention, the pen cap is made of a soft elastic body, and the cap support that supports the pen cap is
A substantially ring-shaped portion having a cutout portion is provided. Therefore, the pen cap can be easily attached to the cap support by pinching the pen cap and crushing it along the axis to deform it and inserting it into the cap support through the notch. When the pen cap is removed from the cap support, the pen cap is bent and pulled by pulling toward the notch so that the pen cap can be easily removed. Thus, according to the pen cap support structure of the present invention,
The pen cap can be easily and smoothly attached to and detached from the cap support. Further, as a result, a jig or the like for attachment and detachment becomes unnecessary, and the pen cap is not scratched and damaged.

Next, the present invention will be described in detail based on embodiments.

[Embodiment] FIGS. 1 to 3 show a pen cap 1 used in an embodiment of the present invention, and FIGS. 4 and 5 show the usage state thereof.

The pen cap 1 is made of a soft rubber or an elastic material similar to it, and as shown in the drawing, a cylindrical main body 2 and a cylindrical main body 2 having an upper edge portion coaxially arranged therein. It is composed of a bottomed inner cylinder 5 connected to the upper edge portion of the above, and a rib 9 connecting the cylindrical main body 2 and the inner cylinder 5.

The tubular main body 2 is provided with an annular holding groove 3 at a substantially central portion of the outer periphery thereof, and a V-shaped groove 4 having a triangular cross-section is formed above the holding groove 3 in parallel with the holding groove 3.

Also, the total length of the inner cylinder 5 is set shorter than that of the cylindrical main body 2,
The circumferential portion is formed thin. Then, the opening edge 6 on the upper side spreads outward so as to form a convex curved surface when viewed from above, and is connected to the upper edge portion of the tubular main body 2. Inner cylinder 5
The bottom portion 7 is formed thicker than the circumferential portion, and the bottom surface 8 on the outer side is a convex curved surface such that the central portion projects downward. Reference numeral 8'denotes a pen tip guide edge projectingly provided on the peripheral portion of the bottom surface 8.

The ribs 9 are provided at equal intervals so as to connect the outer peripheral surface of the thin portion of the circumferential portion of the inner cylinder 5 and the inner peripheral surface of the corresponding tubular main body 2 to each other. The inner cylinder 5 is formed so thin that it can move in the axial direction without significantly deviating from the axis when a thrust force is applied to the bottom surface 8.

As a specific example of the material forming the pen cap 1, silicone rubber having a hardness of about JIS 40 ° is preferable.

As a supporting device for supporting the pen cap 1 as described above, there is a cap holder 15 as shown in FIGS. 6 and 7. That is, this cap holder 15
Is a rod-shaped body in which the cap support on the tip side that supports the pen cap 1 is arranged directly below the pen holder 11 in the pen stock 10, and the base end is rotatably supported by the frame 12. It can be tilted vertically at a fixed angle. The cap support of the cap holder 15 is formed into a substantially ring-shaped body having a thickness that fits into the holding groove 3 provided in the cylindrical main body 2 of the pen cap 1, and has a mounting notch 17 at the tip thereof. There is. Mounting notch
A holding hole 16 for mounting the pen cap 1 is formed on the inner side of the holding hole 17, and the diameter of the holding hole 16 is set to be slightly larger than the diameter of the valley portion of the holding groove 3 of the pen cap 1. The width of the mounting notch 17 is at least the diameter of the holding hole 16.
The size is set to 1/2 or more, and the tip end portion of the cap support body that sandwiches the mounting cutout portion 17 has a rounded shape. Further, 18 is a step portion provided around the holding hole 16, and 19 is a guide for pushing down the cap holder 15.

In this configuration, when using the fiber pen 30 as shown in FIG. 4, first, as shown in FIG.
The pen cap 1 is pinched with the fingertips 45 with the opening side of the inner cylinder 5 facing upward so that the cross-sectional shape becomes elliptical. Next, insert the holding groove 3 of the pen cap 1 into the cap holder 15
The pen cap 1 is inserted into the holding hole 16 so as to be engaged with the cap support body, and the fingertip 45 is separated from the pen cap 1. As a result, the pen cap 1 is restored to its original state by its own elasticity, and the holding groove 3 is engaged with the cap support body to be attached to the cap holder 15.

Then, in the pen stock 10, when the fiber pen 30 is held by the pen holder 11, the pen tip mounting base 31 of the fiber pen 30 causes the opening edge 6 of the inner cylinder 5 of the pen cap 1 to be closed, as shown in FIG. By pressing, the pen tip 32 of the fiber pen 30 is housed in the inner cylinder 5 in an airtight state. For this reason, the nib 32 of the fiber pen 30
Is prevented from drying even if it is not used for a long time, and proper writing can be performed at the start of use.

Further, when removing the pen cap 1 from the cap holder 15, the pen cap 1 can be easily removed by grasping the pen cap 1 with the fingertip 45 and pulling in that state to the outside of the mounting notch 17.

Next, when using the ink pen 40, as shown in FIG. 5, the pen cap 1 is attached to the holding hole 16 of the cap holder 15 with the bottom surface 8 of the inner cylinder 5 facing upward.

When the ink pen 40 is held by the pen holder 11 of the pen stock 10 as shown in FIG.
The tip of the tubular nib 41 having the middle needle 40 presses the bottom surface 8 of the pen cap 1 to close the opening. As a result, the ink at the tip of the tubular pen nib 41 is solidified by drying, and the ink pen 40 does not become unreadable.

Further, at this time, even if the tubular nib 41 comes into contact with the bottom surface 8 at a position displaced from the center of the pen cap 1, the pen nib guide edge 8 ′ is projectingly provided on the peripheral edge of the bottom surface 8. Destination
The ink pen 40 can be prevented from being dried in a proper state without the 41 coming off the bottom surface 8. Further, since the inner cylinder 5 is connected to the cylindrical main body 2 by a plurality of thin eves 9 provided at equal intervals, even if the tubular pen tip 41 is strongly pressed against the bottom surface 8, the entire inner cylinder 5 is axially moved. It is easy to move. For this reason,
It is difficult for the inner cylinder 5 to buckle and the tubular pen tip 41 to deviate from the bottom surface 8, and proper drying prevention can be performed.

The pen cap 1 of the present invention is not limited to use with an XY plotter, but can be used with an ink pen or fiber pen used for drawing by hand.

[Effects of the Invention] As described above, since the pen cap support structure according to the present invention is configured, it can be used for two types of pens by reversing it vertically.
The number of required pen caps will be halved compared to the conventional one. As a result, the problem that the unused pen cap that is not attached to the pen stock must be stored in another place is eliminated.

In addition, the pen cap can be easily attached to the cap support by pinching and deforming it by crushing it along the shaft and inserting it from the notch into the cap support.Pinch the pen cap and pull it toward the notch. This allows easy removal from the cap support. As described above, according to the pen cap and its supporting mechanism of the present invention, the pen cap can be easily and smoothly attached to and detached from the cap support. Further, at that time, since it is not necessary to use a jig or the like, the pen cap is not scratched and damaged, and the life of the pen cap is extended.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a vertical sectional view of a pen cap according to an embodiment of the present invention, FIG. 2 is a bottom view of the pen cap, and FIG. 3 is a state in which the pen cap is cut along a rib portion. FIG. 4 is a vertical sectional view showing a state where the pen cap is used for a fiber pen, FIG. 5 is a vertical sectional view showing a state where the pen cap is used for an ink pen, and FIG. 6 is a pen. The block diagram which shows the whole support structure which attached the ink pen and the pen cap to the stock, FIG. 7 is a top view which shows the principal part of a cap holder, FIG. 8 is explanatory drawing which shows the state which attaches a pen cap to a cap holder, 9 (a) and 9 (b) are explanatory views showing a state in which a pen cap according to a conventional example is attached to a cap holder, and FIG. 10 is an explanatory diagram showing an attaching method according to another conventional example. 1 …… Pen cap 2 …… Cylindrical body 3 …… Holding groove 5 …… Cylinder 6 …… Opening edge 7 …… Bottom 8 …… Bottom 9 …… Rib 10 …… Penstock 11 …… Pen holder 15 …… Cap Holder 16 …… Holding hole 17 …… Mounting notch 30 …… Fiber pen 31 …… Pen tip mounting base 32 …… Pen tip 40 …… Ink pen 41 …… Tubular pen tip

Claims (2)

[Scope of utility model registration request] 1. A support structure of a pen cap, which is disposed below a pen holder of a pen stock for holding a waiting pen and prevents the pen tip of the pen held by the pen holder from drying, and has a substantially ring shape. A pen cap support and a cylindrical main body formed of a soft elastic body and having an annular holding groove formed on the outer peripheral surface thereof and capable of engaging with the cap support have a bottomed inner cylinder coaxial with the main cylinder. And a pen cap that is connected by a connecting portion and is engaged with the cap support body with the opening side of the inner cylinder facing upward. The tip of the pen is sealed in the inner cylinder to prevent the pen tip from drying, and when the inner cylinder is engaged with the cap support body with the opening side facing downward, Ink from the pen tip Supporting a pen cap, characterized in that, when a pen of the type to be ejected is held in the pen holder, the pen tip of the pen comes into contact with the outer bottom surface of the inner cylinder to prevent the pen tip from drying. Construction. 2. A cap support is provided with a substantially ring-shaped portion having a notch for inserting a pen cap, and the pen cap is pressed from the notch so as to have an elliptical cross section. 2. The pen cap is restored to its original state by elasticity when the pressing is released after the pen cap is inserted into the cap support body, and the holding groove of the pen cap and the cap support body are engaged with each other. Pen cap support structure.