JP3710125B2 - Sliding composite writing instrument - Google Patents

Description

[0001]
BACKGROUND 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 shaft cylinder.
[0002]
[Prior art]
Conventionally, as a slide-type composite writing instrument, for example, as shown in FIGS. 1 to 5, by sliding the raised portion 5 a of one sliding body 5 in the direction of the shaft tube tip opening 2 a, The locking portion 5b formed at the end is locked to the locking portion 3b formed on the shaft cylinder, and the writing tip portion 8 of the writing body 7 is maintained in a state of protruding from the shaft tube tip opening portion 2a, and the other sliding portion is maintained. By sliding the raised portion 6a of the moving body 6 in the direction of the shaft tube tip opening 2a, the release protrusion 6c of the other slide body 6 abuts on the one slide body 5, and the shaft tube tip direction and the shaft center outward. By applying a force in the direction, the locking portion 5b of one sliding body 5 locked to the locking portion 3b is engaged and disengaged, and one writing tip portion 8 is immersed from the shaft tube tip opening portion 2a, and the other The other locking portion 6b is stopped by moving the sliding body 6 forward. A plurality of writing bodies such as a ballpoint pen refill and a mechanical pencil body having a protruding and retracting mechanism that can be projected and retracted by maintaining the protruding state of the writing tip portion 10 of the writing body 9 by being locked to 3b. A slide-type composite writing instrument having a structure housed in a cylinder is well known.
[0003]
By the way, when the slide-type composite writing instrument is sandwiched between cloths such as pockets with the writing tip of the writing body protruding, the writing body has a viscosity of 3000 mPa · s at 25 ° C. In the case of a ballpoint pen refill containing the following oil-based ink or ink with shear thinning viscosity, there is a problem that the ink soaks into the fabric of the pocket and becomes dirty, and a sliding type that can easily release the protruding state Compound writing instruments are anxious.
[0004]
[Problems to be solved by the invention]
However, in the conventional slide type composite writing instrument, it is necessary to slide another sliding body to release the protrusion of the writing tip, but the raised portion of the sliding body is slid along the side surface of the shaft tube. Because of the structure, when operating with only one finger, such as when releasing the protruding state of one cursive body or projecting another cursive body, the sliding body moves forward of the finger, such as rotating the shaft tube The position was set to come. That is, it was difficult to operate a plurality of sliding bodies with one finger.
[0005]
As a slide-type compound writing tool that can easily release the protruding state, the locking portion of the sliding body is locked directly to the pressing body, for example, as in Japanese Utility Model Publication No. 7-26183 “Multicolored Ballpoint Pen”, and the writing tip portion protrudes. A structure is disclosed that maintains the state and releases the locking portion of the sliding body that is locked to the pressing body by pressing the pressing body. Will be greatly improved. In addition, since it can be released only by the pressing body, the other writing body cannot be protruded until the pressing body is pressed and the protruding state of one writing body is released.
[0006]
A slide-type composite writing instrument having a clip is also well known. However, in a state of being held in the pocket, the sliding body enters the pocket, so that the operation of the sliding body is more difficult. Furthermore, as a composite writing instrument equipped with a so-called safety mechanism that releases the protruding state of the writing body when held in the pocket by the clip member, for example, the shaft cylinder is always made of an elastic body that is integrated with the sliding body or interlocked by the advancement of the sliding body. When locking the locking part formed on the safety member that is urged toward the rear end to the locking part formed on the ball part of the clip to maintain the protruding state of the writing tip and pinch it in the pocket The engagement state of the engagement portion is released by the separation operation from the side surface of the shaft cylinder of the clip, and the safety member is retracted by the biasing force of the elastic body, and the sliding body is interlocked with the retraction of the safety member. The thing of the structure which makes a writing front-end | tip part immerse in a shaft cylinder by making it retreat is known. In the composite writing instrument provided with such a safety member, when the clip is broken for some reason such as dropping, the protruding state of the writing tip cannot be maintained. In addition, such a structure is complicated and greatly changes from the conventional structure, which greatly increases the cost.
[0007]
Further, as a result of earnest research on the structure for releasing the protruding state of the writing body in the slide-type composite writing instrument, the present inventor is engaged with a stopper formed on the shaft cylinder, which is a conventional slide-type composite writing instrument. The release projection formed on the other sliding body makes contact with the locking portion of one sliding body, and a force is applied to one sliding body by applying force toward the distal end direction of the shaft tube and outward from the shaft center. The mechanism for immersing the writing tip part, which is urged in the rear end direction of the barrel by the elastic body by disengaging the locking part from the stopping part, takes into account the structure of the locking part and the stopping part. In addition, the present inventors have found that the structure is optimal for preventing wear and breakage of the engaging part and the stopper part over time and has excellent temporal stability.
[0008]
An object of the present invention is to provide a slide-type composite writing instrument with a simple structure that can easily release the protruding state of the writing tip and maintain a stable intrusion operation over time in view of the above-described conventional problems. It is.
[0009]
[Means for Solving the Problems]
In the present invention, a plurality of writing bodies are urged and arranged in the shaft cylinder by a resilient member in the rear end direction of the shaft cylinder, and a sliding body is connected to the rear part of each writing body, and one sliding body is connected to the shaft cylinder. By sliding in the direction of the tip opening, the locking portion formed at the rear end of one sliding body is locked to the stopper formed on the shaft tube, and the writing tip of one writing body is moved to the tip of the shaft tube. By maintaining the state protruding from the opening and sliding the raised portion of the other sliding body in the direction of the tip of the shaft tube, the release protrusion of the other sliding body comes into contact with one sliding body and the other sliding body By applying a force to the shaft tube tip direction and the outer side from the shaft center, the locking portion of one sliding body locked to the locking portion is engaged and disengaged, and one writing tip portion is opened to the shaft tube tip opening. The other sliding body is slid further in the direction of the shaft tube tip opening, In the slide-type composite writing instrument that can be projected and retracted by selecting the writing tip portion, the rear end of the sliding body is maintained in the protruding state of the writing tip portion of the other writing body. In addition, a pressing body that is slidable in the axial direction is provided, and the sliding body moves forward in conjunction with the axial direction of the axial cylinder by pressing the pressing body in the axial direction of the axial cylinder. With the writing tip of the body protruding from the shaft tube tip opening, pressing the pressing body advances the other sliding body in the direction of the shaft tube tip, and opens the writing tip of one writing body to the shaft tube tip opening. I can immerse from the department.
[0010]
In addition, the clip member is formed in an L shape, the rear end portion of the clip member is positioned at the rear end of the pressing body, the shaft cylinder pivotally supports the clip member, and the ball portion of the clip member is a shaft. By separating from the tube, the rear end of the clip member presses the pressing body .
[0011]
Furthermore, the rear end surface of the pressing body is inclined toward the pivotal support position of the clip member .
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In addition, the same number is attached | subjected about the same member and the same component in drawing.
As shown in FIGS. 1 to 5, the slide-type composite writing instrument 1 of the present embodiment has a shaft tube structure in which a rear shaft 3 is screwed to the rear end of the front shaft 2, and the colors are different in the shaft tube. Curtains 7 and 9 which are ballpoint pen refills containing ink (not shown) are accommodated by being urged rearward by the elastic members 13 and 14. Further, the rear shaft 3 is formed with a sliding portion 3c extending in the axial direction and opened in the radial direction, and is formed on the sliding portion 3c. The sliding bodies 5 and 6 of the same color as the ink color connected to are slidably disposed. The writing bodies 7 and 9 have ink (not shown) with shear thinning and a grease-like ink follower (not shown) that moves following the ink consumption at the rear end of the ink. Is stored. Further, although not shown, the writing tip portions 8 and 10 of the ballpoint pen refill have a ballpoint pen tip structure in which a coil spring for always pressing the ball held rotatably at the tip against the inner wall surface of the tip end is disposed. Is.
[0013]
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 opened outward. . By advancing the raised portion 5a in the direction of the axial tube tip opening 2a, the locking portion 5b formed on the sliding body 5 is locked to the locking portion 3b formed inside the rear shaft 3, and the writing body 7 The writing tip 8 can be selected and protruded from the tip opening 2 a of the front shaft 2.
[0014]
Further, the pressing body 4 is protruded from the rear end portion 3a of the shaft cylinder at the rear ends of the sliding bodies 5 and 6, and is always urged toward the rear end of the shaft cylinder by the elastic body 12 so as not to rattle when not in use. A head crown 11 is attached and arranged to prevent falling out. The pressing body 4 is disposed so as to be slidable in the axial direction. When the pressing body 4 is pressed in the direction of the shaft cylinder tip opening 2a, the sliding bodies 5 and 6 are also interlocked and moved forward in the direction of the shaft cylinder. To do. Therefore, as described above, when the writing tip 8 of one of the writing bodies 7 is maintained in a protruding state, pressing the pressing body 4 causes the other sliding body 6 to move forward, and the other The release protrusion 6c applies a force to the one release protrusion 5c toward the distal end of the shaft tube and outward from the shaft center, thereby releasing one of the locking portions 5b locked to the locking portion 3b.
[0015]
The slide type composite writing instrument 21 in the second embodiment shown in FIGS. 6 and 7 has a clip member 17 formed in an L shape on the rear shaft 15, and a rear end portion 17 b of the clip member is a pressing body 16. The locking portion 17c provided at the center of the clip member 17 is pivotally supported on the protrusion 15a formed on the rear shaft 15 at the rear end so that the ball portion 17a of the clip member 17 can be separated from the shaft cylinder. The rear end portion 17b is disposed so as to be able to press the pressing body 16. Other than that, it is obtained in the same manner as in the first embodiment.
[0016]
When the clip member 17 is clamped in the pocket, the rear end portion 17b of the clip member 17 presses the pressing body 16 when the ball portion 17a serving as the clamp portion is separated from the shaft tube (in the direction of arrow K in FIG. 5). As a result, when the writing front end portion (not shown) of one of the writing bodies 5 is maintained in a protruding state, the rear end portion 17b of the clip member 17 presses the pressing body 16, and the pressing body advances ( The other sliding body 6 moves forward in conjunction with the direction of the arrow L in FIG. 5, and the other release projection 6c applies a force to the one release projection 5c toward the distal end of the shaft tube and outward from the shaft center. The safety mechanism is configured to release one locking portion 5a locked to a locking portion (not shown). The rear end surface 16 a of the pressing body 16 is inclined toward the pivotal support position of the clip 17 so that the pressing body 16 can be easily pressed by the rear end portion 17 b of the clip 17 .
[0017]
In addition, when the sliding bodies 5 and 6 are directly operated, the projecting operation can be performed regardless of the presence or absence of the clip member 17, so that even if the clip member 17 is damaged, only the operation of the sliding bodies 5 and 6 is possible. It is possible to write in. Moreover, the arrangement | positioning attachment method of the clip member in this invention is not restricted to embodiment, What is necessary is just the structure where the one end part of a clip member presses a press body, such as when a clip member is clamped in a pocket. . Further, it may be integral with or separate from the shaft tube.
[0018]
In this embodiment, the pressing body protrudes from the rear end of the shaft cylinder, and is always urged toward the rear end of the shaft cylinder by an elastic body so that it does not rattle when not in use, and the crown is attached to prevent falling off. However, the arrangement of the pressing body is not particularly limited, and the pressing body protrudes from the rear end of the shaft cylinder and slides in the axial direction. Any structure that can be freely arranged and the sliding body is interlocked by the advancement of the pressing body can be used regardless of the presence or absence of a crown or an elastic body. Further, the front shaft 2 and the rear shaft 3 are screwed together to form a shaft cylinder, and the sliding portion 16 is formed on the rear shaft 3. The moving part may be formed, or a sliding case (not shown) formed by dividing the sliding part in the radial direction may be provided at the rear end of the shaft tube.
[0019]
Further, the present invention is not limited to the number of cursive letters, the ink color accommodated in the cursive letters, the type of ink, and the like. In addition, the ink contained in the ballpoint pen refill can be selected and used as appropriate, such as water-based, oil-based, shear-thinned ink, etc. In the case of a ballpoint pen refill containing an oil-based ink having a viscosity of 3000 mPa · s or less or an ink imparted with shear thinning viscosity, the effect of the ink is particularly noticeable because the ink soaks into the pocket fabric and is easily damaged.
[0020]
Further, the structure in which the sliding body is connected to the writing body is not particularly limited, and a tail plug is inserted directly into the rear end of the ink containing cylinder or the rear end of the ink containing cylinder, and the sliding body is attached to the tail plug. Conventionally known structures such as a structure in which the tip portions of the two are engaged and connected can be used. Furthermore, the ball-point pen tip structure also has a structure in which the ball is pressed directly at the tip of the coil spring, but a presser (not shown) may be interposed between the ball and the coil spring, and a coil spring is provided. It may be a structure that does not.
[0021]
【The invention's effect】
As described above, according to the present invention, the sliding body and the slide-in / out operation of the sliding body can perform the structure of the conventional slide-type composite writing instrument as it is, and thus the stability over time is excellent without significantly increasing the cost. It was possible to provide a slide-type composite writing instrument that can easily release the protrusion of the writing tip.
[0022]
In addition, by providing a clip member capable of pressing the pressing body, a safety mechanism is provided that can release the protrusion of the writing tip when the writing tip of the writing body protrudes and is held between clothes such as a pocket. A sliding composite writing instrument can be provided with a simple structure.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a slide type composite writing instrument according to a first embodiment.
FIG. 2 is a longitudinal sectional view of FIG. 1 with the writing tip protruding.
3 is an enlarged vertical cross-sectional view of a main part, partly omitted from FIG. 1. FIG.
4 is an enlarged vertical cross-sectional view of a main part of FIG. 2 with a part omitted.
5 is an enlarged vertical cross-sectional view of a main part showing a state in which a pressing body is pressed in FIG. 4;
FIG. 6 is a longitudinal sectional view of a principal part, partially omitted, showing a slide-type composite writing instrument according to a second embodiment.
7 is a longitudinal sectional view showing a state (release) in which the clip member is separated from the shaft cylinder in FIG. 6;
[Explanation of symbols]
1, 21 Slide type compound writing instrument 2 Front shaft 2a Front end opening 3 Rear shaft 3a Rear shaft rear end 3b Stopping portion 4 Pressing body 5, 6 Sliding body 5a, 6a Raised portion 5b, 6b Locking portion 5c, 6c Protrusions 7 and 9 Ballpoint pen refills 8 and 10 Writing tip parts 13 and 14 Elastic body 15 Rear shaft 16 Pressing body 17 Clip 17a Ball part 17b Rear end part

Claims (3)

A plurality of writing bodies are urged and arranged in the shaft cylinder by a resilient member in the direction of the rear end of the shaft cylinder, the sliding bodies are connected to the rear part of each writing body, and one sliding body is arranged in the direction of the opening of the shaft cylinder. , The locking portion formed at the rear end of one sliding body is locked to the locking portion formed on the shaft cylinder, and the writing tip of one writing body projects from the opening at the tip of the shaft cylinder. The release protrusion formed on the other sliding body comes into contact with one sliding body and is locked to the stopper by sliding the other sliding body toward the tip of the shaft tube. The engaging part of the sliding body is engaged and disengaged, and one writing tip part is inserted into the shaft tube tip opening part, and the other sliding part is further slid in the direction of the shaft tube tip opening part so that the other engaging part is Locks to the stopper and maintains the protruding state of the writing tip of other cursive objects. In the slide type composite writing instrument, at the rear end of the sliding body, a pressing body connected to each sliding body and having one end slidable in the direction of the opening of the shaft tube is protruded from the rear end of the shaft tube. The sliding body can be moved forward in conjunction with the direction of the shaft cylinder by pressing the pressing body in the direction of the shaft cylinder, and the writing tip of one writing body protrudes from the opening of the shaft cylinder. The sliding type is characterized in that the writing tip of one writing body can be immersed from the opening of the tip of the shaft cylinder by advancing the other sliding body in the direction of the tip of the shaft cylinder by pressing the pressing body. Composite writing instrument. The clip member is formed in an L shape, the rear end portion of the clip member is positioned at the rear end of the pressing body, the shaft tube pivotally supports the clip member, and the ball portion of the clip member is separated from the shaft tube. The sliding composite writing instrument according to claim 1 , wherein the rear end portion of the clip member presses the pressing body by being separated . The slide type composite writing instrument according to claim 2, wherein a rear end surface of the pressing body is inclined toward a pivot position of the clip member .

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