JP2003001993A - Slide type composite writing instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide type composite writing instrument having a simple structure which maintains stable protruding and retracting operations over time so that a protruding state of a writing tip can be easily released. SOLUTION: The slide type composite writing instrument comprises a presser protruding at one end slidable in a direction of an opening of a tip of a barrel from a rear end of the barrel and connected to each slider, at a rear end of the slider. Thus, the slider can be advanced in cooperation with the slider in a direction of the tip of the barrel by pressing the presser in the direction of the tip of the barrel. The presser is pressed in a state that the writing tip of one writing element is projected from the opening of the tip of the barrel, so that another slider is advanced in the direction of the tip of the barrel. Thus, the tip of the one writing element can be retracted in the opening of the tip of the barrel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide-type composite writing instrument in which a plurality of writing bodies are arranged in a barrel.

[0002]

2. Description of the Related Art Conventionally, as a slide-type compound writing instrument, for example, as shown in FIGS. 1 to 5, by sliding a raised portion 5a of one sliding body 5 toward a barrel end opening 2a, sliding is possible. Locking portion 5b formed at the rear end of the moving body 5
Is locked to a stopper 3b formed on the shaft cylinder to keep the writing tip 8 of the writing body 7 protruding from the shaft cylinder tip opening 2a, and the raised portion 6a of the other sliding body 6 is fixed to the shaft cylinder. Tip opening 2
By sliding in the a direction, the release projection 6c of the other sliding body 6 abuts on the one sliding body 5 and a force is applied outward from the axial cylinder tip direction and the axial center, so that the stopper 3b is applied. The locking portion 5b of the one sliding body 5 which has been locked is disengaged, the one writing tip portion 8 is retracted from the shaft cylinder leading end opening portion 2a, and the other sliding body 6 is advanced to move the other engagement portion. A ball-point pen refill, a mechanical pencil body, or the like having a retracting mechanism that allows the stopper 6b to be locked to the stopper 3b to maintain the protruding state of the writing tip 10 of the writing body 9 and which allows the writing tip to be selectively retracted. A slide-type composite writing instrument having a structure in which a plurality of writing bodies are housed in a barrel is well known.

By the way, when the above-mentioned slide type composite writing instrument is sandwiched between cloths such as pockets with the writing tip of the writing instrument protruding, the writing instrument has a low viscosity in water ink or a viscosity at 25 ° C. In the case of a ball-point pen refill containing an oil-based ink of 3000 mPa · s or less or an ink with shear thinning property, there is a problem that the ink soaks into and stains the cloth in the pocket, and the protruding state can be easily released. A slide-type compound writing instrument is desired.

[0004]

However, in the above-mentioned conventional slide-type compound writing instrument, it is necessary to slide another sliding body in order to release the protrusion of the writing tip portion. Since the structure is slid along the side surface of the barrel, the barrel can be rotated when operating with only one finger, such as when releasing the protruding state of one writing body or projecting another writing body. The sliding member is positioned so that it comes to the front of the finger. That is, it was difficult to operate a plurality of slide bodies with one finger.

As a slide-type compound writing instrument that can easily release the protruding state, for example, as in Japanese Utility Model Laid-Open No. 7-26183 "Multicolor Ballpoint Pen", the engaging portion of the sliding body is directly engaged with the pressing body to write the tip of the writing. While maintaining the protruding state of the part,
Although a structure in which the locking portion of the sliding body locked to the pressing body is released by pressing the pressing body is disclosed, the cost is significantly increased because it greatly changes from the conventional structure. I will end up. Further, since it can be released only by the pressing body, the other writing bodies cannot be projected until the pressing body is pressed to release the protruding state of one writing body.

A slide-type composite writing instrument having a clip is also well known. However, when the slide-type compound writing instrument is held in a pocket, the slide body enters the pocket, so that it is more difficult to operate the slide body. Further, as a compound writing instrument equipped with a so-called safety mechanism, which releases the protruding state of the writing body when it is clamped in the pocket by the clip member, for example, it is integrated with the sliding body or interlocked with the forward movement of the sliding body, and the elastic body always causes the axial cylinder. When the locking part formed on the safety member that is biased toward the rear end is locked to the stop part formed on the ball part of the clip to maintain the protruding state of the writing tip and to clamp it in the pocket. The locking state of the locking portion is released by the separation operation of the clip from the side surface of the shaft cylinder, the safety member is retracted by the urging force of the elastic body, and the sliding body is interlocked with the backward movement of the safety member. It is known that the writing tip is retracted into the barrel by retracting it. In a composite writing instrument equipped with such a safety member, when the clip is damaged for some reason such as dropping, the protruding state of the writing tip cannot be maintained. Moreover, since such a structure is complicated and greatly changes from the conventional structure, the cost is significantly increased.

Further, as a result of earnest research on the structure for releasing the protruding state of the writing body in the slide-type compound writing instrument, the present inventor has found that it is a conventional slide-type compound writing instrument.
The locking part of one sliding body, which is locked to the stopper formed on the shaft cylinder, comes into contact with the one sliding body by the release protrusion formed on the other sliding body. The engaging portion of one sliding body is disengaged from the stop portion by applying a force toward, thereby immersing the writing tip portion that is urged by the elastic body toward the rear end of the shaft cylinder. Considering the structure of the locking part and the stopping part, the mechanism is an optimal structure to prevent wear and damage of the locking part and the stopping part over time, and it has been found that it has excellent stability over time. .

In view of the above-mentioned conventional problems and the like, an object of the present invention is to provide a slide-type compound writing instrument which has a simple structure and which easily releases the protruding state of the writing tip portion and maintains a stable retracting operation over time. Is to provide.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a plurality of writing bodies are arranged in a barrel by urging them toward the rear end of the barrel by an elastic member, and a sliding body is connected to the rear portion of each writing body. Then, by sliding one of the sliding bodies toward the tip end opening of the shaft cylinder, the locking portion formed at the rear end of the one sliding body is locked to the stopper formed on the shaft cylinder, and one writing While keeping the writing tip of the body protruding from the tip opening of the barrel, slide the protrusion of the other slide toward the tip of the barrel so that the release protrusion of the other slide is The sliding portion of the sliding body, which is locked to the stopper portion, is engaged and disengaged by applying a force to the sliding body toward the outside of the shaft cylinder tip direction and the shaft center. While the writing tip of the above is retracted from the opening of the tip of the barrel, the other sliding body is moved toward the tip of the barrel. In the slide-type composite writing instrument capable of protruding and retracting by selecting the writing tip portion, the other locking portion is locked to the stopper portion by sliding to maintain the protruding state of the writing tip portion of the other writing body, At the rear end of the sliding body,
By disposing a pressing body that is slidable in the axial direction and pressing the pressing body in the tip direction of the barrel, the sliding body advances in conjunction with the tip direction of the barrel, With the writing tip protruding from the barrel tip opening, the pressing body is pressed to move the other sliding body forward in the barrel tip direction, and the writing tip of one writing body is pushed from the barrel tip opening. Immersive

Further, the shaft cylinder has a clip member integrally or separately, and the holding portion of the clip member is separated from the shaft cylinder so that the pressing member is pressed by one end of the clip member.

Still further, still further, the rear end surface of the pressing body is inclined in the mounting direction of the clip.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same numbers are given to the same members and the same parts. As shown in FIGS. 1 to 5, the slide-type compound writing instrument 1 of the present embodiment has a barrel structure in which a rear shaft 3 is screwed to a rear end of a front shaft 2, and different colors are used in the barrel. Writing bodies 7 and 9 which are ball-point pen refills containing ink (not shown) are stored by being urged rearward by elastic members 13 and 14. Further, the rear shaft 3 has a sliding portion 3c that extends in the axial direction and that is open to the outside.
Is formed in the radial direction, and the sliding portion 3c has
Sliding bodies 5 and 6 of the same color as the ink color connected to the writing bodies 7 and 9 are slidably arranged. Ink (not shown) with shear thinning applied to the writing bodies 7 and 9, and a grease-like ink follower (not shown) that moves following the ink as the ink is consumed at the rear end of the ink. Is stored. In addition, the writing tip portions 8 and 10 of the ballpoint pen refill
(Not shown) has a ball-point pen tip structure in which a coil spring for constantly pressing the ball rotatably held at the tip against the inner wall surface of the tip is provided.

The sliding bodies 5 and 6 are provided with raised portions 5a and 6a, and the raised portions 5a and 6a are held in a state of protruding from the outer peripheral surface of the rear shaft 3 from the sliding portion 3c which is opened outward. I am doing it. By advancing the raised portion 5a in the direction of the shaft cylinder tip end opening 2a, the locking portion 5b formed on the sliding body 5 is locked on the stopper portion 3b formed inside the rear shaft 3, and the writing body 7 The writing tip 8 can be selectively projected from the tip opening 2a of the front shaft 2.

Further, the pressing body 4 is made to project from the rear end portion 3a of the shaft cylinder at the rear ends of the sliding bodies 5 and 6, and the elastic body 12 constantly attaches it to the rear end direction of the shaft cylinder so as not to rattle when not in use. Momentum,
The crown 11 is mounted and arranged to prevent the falling off. The pressing body 4 is arranged so as to be slidable in the axial direction, and by pressing the pressing body 4 toward the opening 2a of the shaft cylinder tip, the sliding bodies 5 and 6 are also interlocked to advance in the shaft cylinder front end direction. To do. Therefore, as described above, when the writing tip portion 8 of one writing body 7 is maintained in a protruding state, the pressing of the pressing body 4 causes the other sliding body 6 to move forward in conjunction with each other, and The release projection 6c applies a force to the one release projection 5c outwardly from the axial cylinder tip direction and from the shaft center to release the one locking portion 5b locked to the stopper 3b.

In the slide type composite writing instrument 21 according to the second embodiment shown in FIGS. 6 and 7, the clip member 17 is formed in an L shape on the rear shaft 15, and the rear end portion 17b of the clip member is formed. The projection 17a formed on the rear shaft 15 is positioned at the rear end of the pressing body 16, and the locking portion 17c provided in the central portion of the clip member 17 is pivotally supported to the ball portion 17a of the clip member 17.
Is arranged so that it can be separated from the barrel and the rear end portion 17b can press the pressing body 16. Other than that is obtained similarly to the first embodiment.

When the clip member 17 is clamped in the pocket, the rear end portion 17b of the clip member 17 moves the pressing body 16 by separating the ball portion 17a serving as a clamp portion from the shaft cylinder (direction of arrow K in FIG. 5). Press. As a result, when the writing tip portion (not shown) of one writing body 5 is maintained in a protruding state, the rear end portion 17b of the clip member 17 pushes the pressing body 16 to advance the pressing body ( 5, the other sliding body 6 moves forward in an interlocking manner, and the other release projection 6c applies a force to the one release projection 5c in the axial cylinder tip direction and outward from the shaft center. , Which serves as a safety mechanism that releases one of the locking portions 5a that is locked to a stop portion (not shown). The pressing body 16 has the rear end surface 16a of the pressing body 16 inclined in the mounting direction of the clip 17 so that the pressing body 16 can be easily pressed by the rear end portion 17b of the clip 17.

Further, when the sliding bodies 5 and 6 are directly operated, the sliding bodies 5 and 6 can be moved in and out regardless of the presence or absence of the clip member 17, so that even if the clip member 17 is broken, the sliding bodies 5 and 6 can be operated. Writing is possible only by the operation of. Also,
The method of disposing and attaching the clip member according to the present invention is not limited to the embodiment, and may be any structure as long as one end portion of the clip member presses the pressing body, such as when the clip member is sandwiched between pockets. Further, it may be integral with or separate from the barrel.

In the present embodiment, the pressing body is made to project from the rear end of the shaft cylinder, and is always urged by the elastic body toward the rear end of the shaft cylinder so as to prevent rattling when not in use. It is equipped with a crown and is arranged so that it can slide in the axial direction.
The method of disposing the pressing body is not particularly limited, and the pressing body is disposed so as to be slidable in the axial direction by projecting from the rear end of the shaft cylinder, and the sliding body is interlocked by the forward movement of the pressing body. The structure can be used with or without a crown or elastic body. Also, the front shaft 2 and the rear shaft 3 are screwed to form a shaft cylinder, and the sliding portion 16 is formed on the rear shaft 3. However, the shaft cylinder is integrally formed and slid on the rear end of the shaft cylinder. The moving part may be formed, or a sliding case (not shown) obtained by partitioning the sliding part in the radial direction may be attached to the rear end of the barrel.

The present invention is not limited to the number of cursive bodies, the ink color to be accommodated in the cursive body, the type of ink, and the like, and a plurality of curriculums such as three or four ballpoint pens or three mechanical pencils can be used. The body can be appropriately selected and arranged, and the ink stored in the ballpoint pen refill is also
Although inks such as water-based, oil-based, and shear thinning-provided inks can be appropriately selected and used, a low-viscosity water-based ink, an oil-based ink having a viscosity of 3000 mPa · s or less at 25 ° C., or a shear thinning-printed ink In the case of the contained ball-point pen refill, the above ink is particularly effective because it permeates the cloth in the pocket and is easily damaged.

Further, the structure for connecting the sliding body to the writing body is not particularly limited, and a tail plug may be directly attached to the rear end of the ink containing cylinder or may be attached to the rear end of the ink containing cylinder. It is possible to use a conventionally known structure such as a structure in which the front end portion of the sliding body is engaged with and connected to. further,
The ball-point pen tip structure also has a structure in which the ball is directly pressed by the tip of the coil spring, but a pressing element (not shown) may be interposed between the ball and the coil spring, or the coil spring is not arranged. May be

[0021]

As described above, according to the present invention, the sliding member and the sliding member can be retracted and retracted by the structure of the conventional slide-type composite writing instrument without any change. It was possible to provide a slide-type composite writing instrument that is excellent in stability and that can easily release the protrusion of the writing tip.

Further, by disposing a clip member capable of pressing the pressing body, a safety mechanism capable of canceling the projection of the writing tip when it is sandwiched by clothes such as a pocket with the writing tip of the writing body protruding. It is possible to provide a slide-type composite writing instrument equipped with a simple structure.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a slide-type composite writing instrument according to a first embodiment.

FIG. 2 is a vertical cross-sectional view of FIG. 1 with a writing tip portion in a protruding state.

FIG. 3 is an enlarged vertical cross-sectional view of a main part of FIG. 1 with some parts omitted.

FIG. 4 is an enlarged vertical cross-sectional view of a main part with a part omitted in FIG.

5 is an enlarged longitudinal sectional view of an essential part showing a state in which the pressing body is pressed in FIG.

FIG. 6 is a longitudinal cross-sectional view of a main part with a part omitted showing a slide-type composite writing instrument according to a second embodiment.

7 is a vertical cross-sectional view showing a state (released) of the clip member in FIG. 6 separated from the barrel.

[Explanation of symbols]

1,21 Sliding compound writing instrument 2 front axis 2a Tip opening 3 rear axle 3a Rear shaft rear end 3b stop 4 Pressing body 5, 6 Sliding body 5a, 6a Raised part 5b, 6b Locking part 5c, 6c release protrusion 7, 9 Ballpoint pen refill 8,10 Writing tip 13, 14 Elastic body 15 Rear axle 16 Pressing body 17 clips 17a ball part 17b rear end

Claims (3)

[Claims] 1. A plurality of writing bodies are arranged in a shaft cylinder while being biased toward the rear end direction of the shaft cylinder by an elastic member, and a sliding body is connected to the rear portion of each writing body, and one sliding body is used as a shaft. By sliding toward the opening of the barrel tip, the locking part formed on the rear end of one sliding body is locked to the stopper formed on the barrel, and the writing tip of one writing body is fitted on the barrel. Maintaining the state of protruding from the tip opening and sliding the other sliding body toward the tip of the shaft cylinder, the release projection formed on the other sliding body abuts on one sliding body and locks to the stopper. By disengaging the locking part of one sliding body, one of the writing tips is retracted from the opening of the barrel tip, and the other sliding body is slid further toward the barrel tip opening. The locking part of the other locks to the stop part to maintain the protruding state of the writing tip of the other writing body,
In a slide-type compound writing instrument capable of appearing and retracting by selecting a writing tip, a rear end of the sliding body is provided with one end slidably connected to each of the sliding bodies toward a tip end opening portion of the barrel. By disposing a pressing body that is further protruded and pressing the pressing body in the tip direction of the barrel, the sliding body can move forward in conjunction with the tip direction of the barrel, and the writing tip of one writing body By pushing the pressing body while projecting from the tip opening of the barrel, the other sliding body can be moved toward the tip of the barrel so that the writing tip of one writing body can be retracted from the tip opening of the barrel. A slide-type compound writing instrument characterized by the above. 2. A clip is formed integrally with or separately from the shaft cylinder so that the one end opposite to the clamp part can press the pressing body by separating the gripping part from the shaft cylinder. The slide-type composite writing instrument according to claim 1. 3. The slide-type composite writing instrument according to claim 2, wherein a rear end surface of the pressing body is inclined in a mounting direction of the clip. .