JP2607606Y2 - Writing implement - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a quick-drying ink and
The present invention relates to a writing implement that uses a volatile ink to open and close a cap in a series of operations, and allows the pen tip to be completely sealed when the pen tip is stored by the cap.

[0002]

2. Description of the Related Art Conventionally, writing instruments using inks that are somewhat dry, such as volatile inks such as water-based inks and oil-based inks, have a cap or a cap to prevent drying of the pen core.
There is one in which a member called a cap is built in a writing barrel. Prior applications of this type include (a) Japanese Patent Application Laid-Open No. 58-52.
No. 99 (hereinafter (a)), (b) JP-A-59-15679
No. 8 (hereinafter (b)), (c) Japanese Utility Model Laid-Open No. 2-54987 (hereinafter (c)), and (d) Japanese Utility Model Application Laid-Open No. 2-58985 (hereinafter (2)). (A) is a cylindrical cap having one closed end, but the movement of the cylindrical cap depends on its own weight, so it is necessary to ensure that the cylindrical cap is attached to the pen tip when not in use and retracted when used. I have not done it.
In (b), a plate-shaped object such as a valve or a fold-shaped object is pressed to bring the pen tip into contact with the object and pushed open, so that the pen point of the writing portion is moved in and out. However, with this configuration, airtightness cannot be ensured, and valves and the like are soiled, resulting in damage to the pen tip of the writing section. (C) and (d) perform sealing by a valve, and the string is hung on the valve to always close or open. In such a configuration, it is difficult to hang a string at the time of assembling, and because the valve and the like are slightly pushed open with a pen tip, the valve is soiled, and the dirt on the valve makes it impossible to maintain the airtightness. To scratch the pen tip.

[0003]

[Problems to be Solved by the Invention] As described above, conventionally, a pen tip pushes and opens a cap such as a valve, thereby obtaining
There is a drawback that the pen tip is damaged, and thereby the pen tip and a cap such as a valve covering the pen tip are soiled. Air-tightness is not a problem with an ink such as an oil-based ballpoint pen, but the use of a volatile ink as desired in the present application has the disadvantage that the air-tightness of the pen tip cannot be maintained. Therefore, the invention of the present application solves such a problem, and provides a writing implement that can securely maintain airtightness and is easy to assemble without preventing the nib from being damaged by a cap such as a valve that requires hermetic sealing.

[0004]

SUMMARY OF THE INVENTION A retractable type having a cartridge which is resiliently supported by an elastic member inside an exterior body and a pressing member which is provided at the rear with a locking piece for maintaining a pen tip exposed state. In the writing instrument, a groove in the direction parallel to the axis H and a direction parallel to the axis H is connected to the outer periphery of the cartridge by a groove of a curved portion.
Arranged cap support tube 2 which is provided so as to relatively the support member 3 having a cap guide groove which consists of the said calibration
The top support cylinder is movable only in the direction parallel to the axis H. Further, an outer body having a storage portion on the front side surface, a front end hole at the front end, and a long groove on the inner surface near the storage portion is disposed on the outside, and a pen of the cartridge is provided. A cap that keeps the tip airtight at all times and that can release airtightness during use is provided.The cap is guided and supported by the cap guide groove having a curved portion with a working shaft provided at the rear, and the cap is provided on a side surface of the cap. A rotating shaft is provided in parallel with the working axis, and the rotating shaft is supported so as to be able to move back and forth in the long groove, and when receiving a pressing force from the pressing member, the cartridge, the supporting member, and the pressing member initially move in the direction of the distal end hole. And the rotating shaft stops at the forefront of the long groove, and further, the action shaft is moved in the direction parallel to the curved portion of the cap guiding groove and the axis H by the pressing force.
The writing instrument is characterized in that the cap is rotated by moving to the groove , and the cap is attached / detached and stored in the storage section when the cap is removed.

[0005]

[Operation] The operation will be described based on the use of the writing instrument of the present invention. The state shown in FIG. 1 is a state in which the cap 6 is covered with the pen tip and press-fitted, and is kept airtight. 1, the pressing member 10 is pushed forward. Then, the cartridge 1 and the cap 6 pressed against the tip of the cartridge 1 and held in an airtight manner, and the cap support cylinder 2 are also pushed forward to release the airtightness. The rotating shaft 7 is positioned at the foremost position of the long groove 9, and when the pressing is further advanced, the rotating shaft 7
Since the action shaft 8 is located at the position on the side 3 and opposite to the rear end of the cap 6, the cap 6 starts to rotate about the rotation shaft 7 and the airtightness is released. At this time, the rotary shaft 7 stops at the tip of the long groove 9 due to the action and reaction.
1 and 3, a downward force acts in FIG. 1 and FIG. 3, and an upward force acts on the operating shaft 8 by the pressing force applied by the pressing member. Guided to the cap guiding groove 4, the cap starts the above-described rotational movement.

At this time, when the operating shaft 8 is guided by the curved portion of the cap guiding groove 4 and presses the pressing member 10 at a point P of the curved portion, the groove provided in the cap guiding groove 4 is provided in parallel with the axis. The operating shaft 8 is guided to the
3 is exposed from the tip hole 14 of FIG.
(The axis is H.) At this time, the locking piece 11 is locked by the locking portion 15 to maintain the state of exposing the pen tip, and the window 16
A part of the locking piece 11 is exposed. Next, in order to return the exposed pen tip to its original position, if a part of the locking piece 11 exposed from the window 16 is pressed, the locked state of the locking piece 11 and the locking portion 15 is released, The cap support cylinder 2 and the cartridge 1 are moved rearward by the reaction of the elastic member 10, and the cap 6 housed in the housing portion 13 is taken out. Then, the press-fitting of the pen tip and the cap 6 is performed in the reverse motion. The airtightness is maintained again.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to FIGS. 1, 2, 3 and 4. FIG. 1 is an occlusion body that has absorbed ink, or
The cartridge is provided with liquid ink inside and has a pen tip at the tip. Reference numeral 2 denotes a cap support cylinder having a tip as a support member 3 for the cap. The support members 3 are stretched as a pair, and each of them is provided with a cap guide groove 4. The cap support cylinder 2 is elastically supported by an elastic member 5. Reference numeral 6 denotes a cap having a rotating shaft 7 on a side surface and a pair of operating shafts 8 opposed to each other at a lower portion.
The operating shaft 8 is supported and guided by the cap guiding groove 4.
The rotating shaft 7 is supported by a long groove 9 provided in the exterior body. Reference numeral 10 denotes a U-shaped pressing member, in which a locking piece 11 is disposed, and a locking portion 15 for locking the locking piece 11 is provided. The locking portion 15 has a convex shape, and the locking piece 1
1 also commonplace convex, locked rides over the engaging portion 15, releasing the locking pieces 11 of the portion engaged with the engagement portion 15 pushes the engaging piece 11 downward Locking part 1
5 is released, and the elastic member 5 returns to the original state. Reference numeral 12 denotes an exterior body in which the cartridge 1, the cap support cylinder 2, the elastic member 5, the cap 6, and the pressing member 10 are disposed inside with the front end serving as a front end hole 14.
Further, the exterior body 12 is provided with a storage portion 13 for storing the cap 6 so as not to be in the way when the pen tip is used. In particular, it is better that the exterior body 12 can be divided into two parts. As for the material, since volatile ink is used, if each part is not affected by the ink, thermosetting resin,
It may be a synthetic resin product such as a thermoplastic resin or a metal product.

Next, a method of using the writing instrument of the present invention will be described with reference to FIG.
Is in a non-use state, and is kept airtight between the cap 6 and a pen tip provided on the cartridge 1. Also,
The elastic member 5 includes a cap support cylinder 2, a cartridge 1, and a pressing member 1 disposed behind the cartridge 1.
0 will also be supported. At this time, the rotation shaft 7 provided on the side surface of the cap 6 is located at the rearmost end of the long groove 9 provided inside the exterior body 12. Further, an operation shaft 8 is provided at a position opposite to the rear end side surface of the cap 6, and the operation shaft 8 is located at a front end of the cap guide groove 4 of the support member 3 provided at a front end of the cap support cylinder 2. I have. Next, the pressing member 10 is pushed forward from behind. Then
The cap 6, the cap support cylinder 2, and the cartridge 1 are also pushed forward. At this time, the rotating shaft 7 is located at the tip of the long groove 9. As a result, when further pressed, the rotating shaft 7 cannot escape any further, so the operating shaft 8 is guided to the curved point P of the cap guiding groove 4 and the cap 6 starts rotating around the rotating shaft 7. , The outer body 12 in the rotating direction.
The storage section 13 is provided, and the storage section 13 is completely stored in the storage section 13 using the curved portion of the cap guiding groove 4. At this time, the cap acts as a force acting on the rotating cap. A downward force acts on the rotating shaft 7 because the cap stops at the leading end of the long groove 9 due to an action reaction. An upward force acts on the working shaft 8 due to the pressure, and the working shaft 8 is guided to the cap guide groove 4 perpendicular to the axis H, and the cap starts the above-described rotational movement. In this way, the cap 6 starts rotating, and the airtight holding by the press fitting is released.

Further, when the pressing member 10 is pressed, the action shaft 8 is located at a portion of the thrust groove parallel to the axis of the cap guiding groove 4, thereby enabling the cartridge 1 to move forward. Finally, the pen tip is exposed from the distal end hole 14 of the exterior body 12, and becomes in a writable state. This state is shown in FIG. At this time, the locking piece 11 is locked by the locking portion 15 to keep the pen tip exposed. In order to use and return to the state shown in FIG. 1, the locking piece 11 exposed through the window 16 is pressed to release the locking between the locking piece 11 and the locking portion 15. Locking part 15
Intended locking piece 11 also general convex shape convex engaged rides over the engaging portion 15, released the engagement portion 15 presses the locking piece 11 as the locking The locking piece 11 in the portion where the locking is performed is at the lower position, the locking portion 15 is released, and the elastic member 5 returns to the original state. Then, since the elastic member 5 has been compressed, all the parts resiliently supported by the elastic member 5 are pushed rearward by the reaction force. The pen tip is retracted, and the pen tip is stored in the reverse movement, and at the same time, the cap 6 and the pen tip are press-fitted and airtightly held.

[0010]

[Effects] The present application has the above configuration, and the following effects can be obtained. Instead of the pen tip pushing and opening the valve or cap,
Since the parts that require airtightness are not touched, the caps can be attached and detached without fail, so that the caps can be reliably maintained airtight many times. Cap 6 in a series of pressing operations
It is convenient for use because it can be attached and detached,
In addition, since the cap 6 is integrally provided inside, the cap 1 is convenient to carry without losing the cap 1. Since the cap 6 is not supported by a string or the like, the configuration is simple and the assembly cost and the die cost can be reduced.

[0011]

[Brief description of the drawings]

FIG. 1 is a sectional view of a first embodiment of the present invention in an unused state.

FIG. 2 is an AA cutaway view of the first embodiment of the present invention in an unused state.

FIG. 3 is a sectional view of the first embodiment of the present invention in use;

FIG. 4 is a sectional view of the first embodiment of the present invention, taken along the line AA.

[0012]

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cartridge 2 Cap support cylinder 3 Support member 4 Cap guide groove 5 Elastic member 6 Cap 7 Rotating shaft 8 Working shaft 9 Long groove 10 Pressing member 11 Locking piece 12 Exterior body 13 Storage section 14 Tip hole 15 Lock section

Claims (1)

(57) [Scope of request for utility model registration] 1. A retractable writing instrument having a cartridge resiliently supported by an elastic member inside an exterior body and a pressing member provided at a rear portion with an engaging piece for maintaining a pen tip exposed state. At the tip is parallel to the axis H and the vertical direction.
A cap support cylinder 2 provided with a support member 3 having a cap guide groove formed by connecting grooves in a row direction with a groove of a curved portion is disposed, and the cap support cylinder is parallel to an axis H.
It can be moved only in the direction, furthermore, a storage part is provided on the front side surface, a tip hole at the tip and an exterior body having a long groove on the inner surface near the storage part, and the pen tip of the cartridge is always kept airtight and used. A cap capable of releasing airtightness at times is provided, and the cap is provided with a working shaft in the rear and guided and supported in the cap guiding groove having a curved portion, and further provided with a rotating shaft on a side surface of the cap in parallel with the working shaft. The rotating shaft is supported so as to be able to move back and forth in the long groove. When receiving the pressing force from the pressing member, the cartridge, the supporting member, and the pressing member initially move in the direction of the distal end hole, and at the forefront of the long groove. The rotating shaft stops, and the pressing shaft moves the working shaft to a groove parallel to the curved portion of the cap guiding groove and the axis H, thereby causing the cap to rotate, and when attaching and detaching the cap, and removing the cap. Storage section Writing instruments, characterized in that it was carried out of the storage.