JP2013006384A - Sliding type multi-core writing implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure capable of easily attaching a cover body and hardly detaching the cover body in a multi-core writing implement in which a user can house a favorable writing body and a sliding body corresponding to the writing body replaceably into a shaft cylinder by rotation of the cover body.SOLUTION: In the sliding type multi-core writing implement, a base part protruded from an outer surface of a shaft cylinder is formed on the rear end part of the shaft cylinder, an engagement part disposed on one end part of the cover body is freely rotatably concave-convex engaged with a hinge part formed on the base part, a protrusion part of a fitting part of the cover body is freely attachably and detachably surmounted on and fitted to a protrusion part of a part to be fitted which is protruded toward the rear side on the rear end part of the shaft cylinder, an opening part is freely openably and closably attached, a mounting part formed on a side wall of the rear end part of a clip is mounted on a part to be mounted formed on a side wall of the base part and an extension part extended to the rear side from the mounting part of the clip is located on the extended line of the engagement part of the cover body and the hinge part.

Description

  The present invention relates to a multi-core writing instrument in which a plurality of writing bodies are accommodated in a shaft cylinder.

  In a multi-core writing instrument, Japanese Patent Application Laid-Open No. 2003-11583 “Sliding Multi-Core Writing Instrument” connects a sliding body provided with an operating portion at the rear of each writing body, and projects the operating portion outward of the shaft cylinder. By detachably attaching the operation unit to the sliding body, it is possible to select the wrong writing body when replacing with a writing body that suits the user's preference. A configuration that can be selected is disclosed.

  In the conventional multi-core writing instrument, when the user replaces the writing body with a different type from the writing body housed in the shaft cylinder before the replacement, the sliding body remains in the shaft cylinder. Then, the cursive body and the operation unit are removed, and then a new cursive body and a new operation unit are attached to the sliding body. Therefore, the replacement work of the cursive body is complicated, and there is a possibility that the user cannot exchange quickly and surely.In addition, when replacing plural cursive bodies at the same time, the cursive body and the cursive body are mistakenly There is a risk of attaching a non-corresponding operation unit to one sliding body. Moreover, since the said operation part is a small component, it is easy to lose.

  In view of such a problem, in Japanese Patent Application Laid-Open No. 2007-38635 “multi-core writing instrument”, an opening for opening a sliding groove rearward is provided at the rear end of the shaft tube, and the sliding body is formed from the opening. There is disclosed a configuration in which a lid is rotatably attached to a hinge part such as a hinge part provided on the shaft cylinder so that the cover body can be removed from the shaft cylinder and inserted into the shaft cylinder.

JP 2003-11583 A JP 2007-38635 A

  By the way, although various methods can be considered as a method of attaching the lid body in a freely rotatable manner, it is most preferable to concavo-convexly fit the hinge portion in a freely rotatable manner in consideration of an increase in the number of parts. Furthermore, considering assemblability, it is preferable to reduce the concave / convex fitting force so that it can be easily attached to the hinge portion.

  An object of the present invention is to provide a multi-core writing instrument in which a user's favorite writing body and a sliding body corresponding to the user's favorite writing body can be accommodated in the shaft cylinder, and the writing body and the sliding body can be replaced quickly and reliably. The structure is easy to attach the lid and is difficult to come off.

  In order to achieve the above object, the present invention provides a sliding body in which a plurality of writing bodies are urged and arranged in the axial direction by a coil spring in the axial cylinder, and connected to the rear part of each writing body. The sliding body is slidably housed in a sliding groove provided in the shaft cylinder, and an operating portion that protrudes outward from the sliding groove is integrally formed or attached to the sliding body, and the operating portion is arranged in the direction of the tip of the shaft cylinder. In the slide type multi-core writing instrument in which the protrusion of the writing portion of the cursive body is maintained and the clip is attached to the rear end portion of the shaft tube, the sliding groove is formed at the rear end of the shaft tube. An opening communicating with the rear of the shaft tube is provided, and the sliding body is configured to be removable from the shaft tube and insertable into the shaft tube, and an outer surface of the shaft tube is formed at the rear end portion of the shaft tube. A base projecting from the base, and an engaging portion provided at one end of the lid is formed by a pin formed on the base. The projections of the fitting part of the lid body can be attached to the projections of the fitting part protruding rearward at the rear end part of the shaft tube. The clip is fitted over freely, the opening is attached to be freely opened and closed, and a mounting portion formed on the side wall of the rear end of the clip is mounted on a mounting portion formed on the side wall of the base, and the clip An extension portion extending rearward from the mounting portion is located on an extension line in the radial direction of the engagement portion and the hinge portion of the lid body.

  Further, the inner wall of the extension part and the side wall of the engaging part of the lid body have a gap, and the gap is smaller than the amount of immersion of the engaging part of the lid body into the hinge part. And

  According to the configuration of the first aspect of the present invention, the multi-core writing instrument rotates the lid to open the opening at the rear end of the shaft cylinder so that the user can remove the writing body in the shaft cylinder and At the same time that it can be replaced with a writing body, the sliding body can also be replaced with one that is removed from the shaft cylinder and that corresponds to the writing body appropriately, and erroneous connection between the writing body and the sliding body can be prevented.

  In addition, since the extending portion of the side wall of the clip is located on the extension line in the radial direction of the engaging portion of the lid body and the hinge portion, it is attached so as to cover the engaging portion of the lid body and the hinge portion. Even if the engaging force between the engaging portion of the lid and the hinge portion is small, it is possible to prevent the lid from coming off due to the rotation of the lid.

  According to the structure of Claim 2 of this invention, it can make it easy to mount | wear with a clip because the inner wall of the said extension part and the side wall of the engaging part of the said cover body have a clearance gap. In addition, since the gap is smaller than the amount of immersion of the engaging portion of the lid body into the hinge portion, the lid body and the extending portion come into contact with each other before the engaging portion and the hinge come off. The effect of preventing the part and hinge from coming off is not impaired.

  The clip of the present invention is preferably harder than the shaft tube, and most preferably a metal clip, in order to enhance the effect of preventing damage to the clip and preventing the cover from coming off. The lid can be made of a synthetic resin material such as PP resin, POM resin, PC resin, ABS resin, or a soft material such as thermoplastic elastomer or silicone rubber.

  The present invention provides a multi-core writing instrument in which a user's favorite writing body and a sliding body corresponding to the user's favorite writing body can be accommodated in the shaft cylinder, and the writing body and the sliding body can be replaced quickly and reliably. It was possible to provide a structure in which the body can be easily attached and is not easily detached.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external view showing a slide-type multi-core writing instrument of Example 1. It is a figure which shows the state which protruded the writing part in FIG. It is a figure which shows the state which opened the cover body in FIG. It is the figure seen from the clip side in FIG. It is a figure which shows the cursive body in FIG. It is the longitudinal cross-sectional view which abbreviate | omitted the writing body and sliding body in FIG. FIG. 7 is an enlarged vertical cross-sectional view of a main part, partly omitted in FIG. 6. It is AA sectional drawing in FIG. It is BB sectional drawing in FIG. FIG. 6 is an enlarged view of a main part of the slide-type multi-core writing instrument of Example 2 with a part thereof omitted.

Next, embodiments of the slide-type multi-core writing instrument of the present invention will be described with reference to the drawings, but the present invention is not limited to the following embodiments.
Example 1
1 to 9 is a slide type multi-core writing instrument 1 according to the first embodiment. 4) is accommodated so as to be movable in the front-rear direction. A sliding body 9 having the same color as the ink for the writing instrument housed in the ink containing cylinder 15 of the writing body 15 is disposed at the rear part of the writing body 15, and the writing body 15 is urged rearward by the coil spring 13. This is a slide-type multi-core writing instrument with a known in / out mechanism. Although the details of the other cursives are not shown, the cursives are arranged in the same manner as the cursive 15.

The writing body 15 is a ball-point pen refill, and a writing section 17 in which a ball is rotatably held at the tip of the ink storage cylinder 16 is mounted. The ink storage cylinder 16 has a black shear thinning viscosity. Water-based gel ink and ink follower are directly stored. Although not shown in the drawing, the other three writing bodies, like the writing body 15, are equipped with a writing portion consisting of a ballpoint pen tip at the tip of the ink containing cylinder, so that water-based gel inks and ink followers of different colors are directly attached. Is a ballpoint pen refill.

Four elongated sliding grooves 3b, 3c, 3d, and 3e extending in the front-rear direction are formed in the rear portion of the rear shaft 3, and are formed at intervals of 90 degrees. The sliding grooves 3b, 3c, 3d, and 3e have openings 3ba and 3ca that are open at the rear, and communicate with the sliding grooves 3b, 3c, 3d, and 3e at the rear end 3a of the rear shaft 3. ing.

A substantially cylindrical spring support portion 8 is fixed in the rear shaft 3. The spring support portion 8 has an inner hole through which the writing body 15 is inserted in the axial direction, and coil springs 13 and 14 are arranged between the spring support portion 8 and the sliding bodies 9 and 10. .

A base portion 3h protruding outward is formed on the rear portion of the rear shaft 3 and the side surface between the sliding grooves 3b and 3c of the rear shaft 3, and a polypropylene portion is formed on the hinge portion 3i formed on the base portion 3h. The lid 5 is provided at one end of the lid 5 and is engaged with an engaging portion 5c extending left and right when the clip 12 is viewed from the front. The rear end 3a of the rear shaft 3 can be exposed by pivoting.

Further, a metal clip 12 is attached to the base 3e. Specifically, the rear end portion 12a of the clip 11 is formed in a substantially U shape, and the sawtooth mounting portion 12b formed on the rear end portion 12a of the clip 12 is formed on the base portion 3e protruding to the rear shaft 3. In addition to being mounted in the groove, an extension portion 12c extending only from the side surface is attached to the rear from the mounting portion 12b so as to cover the engaging convex portion 5c and the hinge portion 3f of the lid 5. Furthermore, the gap M between the extended portion 12c of the clip and the engaging convex portion 5c of the lid 5 is made smaller than the immersion amount L of the engaging portion 5c engaged with the hinge portion 3i.

  The lid 5 is provided with a mounting cylinder portion 5a. When the lid 5 closes the rear end 3a of the rear shaft 3, the rear projection 3 is formed on the rear end of the rear shaft 3 and protrudes rearward. The protrusion 5b of the mounting cylinder 5a is fitted over the protrusion 3g of the mounting cylinder 3f, and the lid 5 is fitted to the rear shaft 3 so as to be freely opened and closed.

  In addition, the locked portion 6b in the second lid body 6 made of a polycardnade is dropped and fitted into the locking portion 5d of the shaft portion provided on the lid body 5 extending rearward so as to cover the lid body 5. A part of the lid body, specifically, the second lid body 6 is moved over the projection 5b of the fitting portion 5a of the lid 5 and the projection 3g of the fitted portion 3f of the rear shaft 3. The extension line in the radial direction of the fitting is covered and attached.

  In order to facilitate the opening / closing operation from the rear shaft 3 of the lid body 5, the second lid body 6 has an end portion on the symmetrical side with respect to the axis line of the engaging portion 5 c engaged with the base portion 3 h, outwardly. A handle portion 6a protruding toward the bottom is integrally formed. Further, a pressing pin 7 is fitted in the second lid body so that the second lid body 6 does not come off the lid body 5.

  In order to cause the writing part 17 made of a ballpoint pen tip of the writing body 15 to protrude from the tip opening 2a of the front shaft 2, the operation part 9a of the sliding body 9 is moved along the sliding groove 3b to the tip opening of the front shaft 2. By sliding in the direction 2a, the engaging protrusion 9b formed on the sliding body 9 is locked to a locking portion (not shown) formed in the rear shaft 3, and the writing portion 17 of the writing body 15 is moved to the front shaft. The protrusion can be maintained by selecting from the two end openings 2a.

  Further, by sliding the operation portion 10a of the other sliding body 10 in the direction of the front end opening 2a of the front shaft 2 in a state where the writing portion 17 of the writing body 15 maintains the protrusion from the front end opening 2a of the front shaft, The release protrusion of the sliding body 10 releases the locking of the sliding body 9 through the sleeve 18, and the writing portion 17 of the writing body 15 can be immersed in the front shaft 2. When the writing portion 16 of the writing body 14 is immersed, the rear end portion of the sliding body 9 attached to the writing body 14 is stopped by a contact wall portion 5 d formed on the front surface of the lid body 5.

  In order to replace the writing body 14, from the state where the lid 5 closes the rear end 3a of the rear shaft 3, the operating portion 6a of the second lid 6 is pressed backward (in the direction of arrow F in FIG. 1) to protrude. The engagement between the portion 3e and the protrusion 5b is released, the lid 5 is rotated backward (in the direction of arrow G in FIG. 3), and the rear end 3a of the rear shaft 3 is exposed.

  When the lid 5 is rotated and the rear end 3a of the rear shaft 3 is exposed, the sliding bodies 9, 10 are urged rearward of the coil springs 13, 14 from the openings 3ba, 3ca of the sliding grooves 3b, 3c. Is protruded rearward and outward. By taking out the sliding body 9 from this state, the writing body 15 connected to the sliding body 9 is taken out from the rear shaft 3, and then a new writing body (not shown) and a new writing body are connected to each other. The sliding body is inserted into the rear shaft 3 through the sliding groove 3b whose rear end is open. Then, the lid body 5 is rotated forward, and then the projecting portion 3g and the projecting portion 5b are engaged, and the rear end 3a of the rear shaft 3 is closed. As a result, the replacement work of the writing body and the sliding body is completed, so that the user can replace the writing body and the sliding body corresponding to the user's preference in the shaft cylinder, and the writing body and the sliding body can be quickly and reliably stored. Can be replaced.

  In the sliding writing instrument of Example 2 shown in FIG. 10, a base 23h protruding outward is formed on the rear portion of the rear shaft 23 and on the side surface between the sliding grooves of the rear shaft 23. Example 1 except that the engaging portion 5c provided at one end of the lid body 25 is engaged with the formed hinge portion 23i and the lid body 25 is rotatably engaged. Similarly, a slide-type multi-core writing instrument is obtained. Similarly to the first embodiment, the extending portion 32c of the clip 32 is positioned on the radial extension line of the hinge portion 23i and the engaging portion 5c.

  In the present invention, examples of the cursive include a ballpoint pen, a marking pen, and a mechanical pencil. In the present invention, the number of writing bodies accommodated in the shaft cylinder may be two or more, and specific examples include 2, 3, 4, 5, 6 and the like.

  Further, the method of engaging the hinge portion and the engaging portion may be one or two locations, and is not particularly limited as long as the lid is pivotably engaged. Engaging one engaging portion provided at one end is preferable because the assemblability is remarkably improved.

  The multi-core writing instrument of the present invention can be widely implemented as a multi-core writing instrument without being limited to the type of ink or writing part.

DESCRIPTION OF SYMBOLS 1 Slide-type multi-core writing instrument 2 Front shaft 2a Front end opening 3 Rear shaft 3a Rear end 3b, 3c, 3d, 3e Sliding groove 3f Part to be fitted 3g Projection part 3h, 23h Base part 3i, 23i Hinge part 4 Connecting tool 5, 25 Lid 5a, 25a Fitting part 5b Protruding part 5c Engaging part 6, 26 Second lid 6a, 26a Handle part 7 Holding pin 8 Spring support part 9, 10, 11 Sliding body 9a, 10a, 11a Operation Part 12, 32 Clip 12a Rear end part 12b Mounting part 12c, 32c Extension part 13, 14 Coil spring 15 Writing body 17 Writing part

Claims (2)

A plurality of writing bodies are urged and arranged in the shaft cylinder by a coil spring in the rear end direction of the shaft cylinder, and sliding bodies connected to the rear part of each writing body are slidable in sliding grooves provided in the shaft cylinder. And an operation portion that protrudes outward from the sliding groove is integrally formed or attached to the sliding body, and the operation portion is slid in the direction of the tip of the shaft tube, thereby In the slide type multi-core writing instrument that maintains the protrusion and has a clip attached to the rear end portion of the shaft tube, an opening portion that communicates with the rear of the sliding groove is provided at the rear end of the shaft tube, and the opening The sliding body is configured to be removable from the shaft cylinder and insertable into the shaft cylinder from a portion, and a base portion protruding from an outer surface of the shaft cylinder is formed at a rear end portion of the shaft cylinder, An engagement portion provided at one end portion is rotatably engaged with a hinge portion formed on the base portion, and the front portion The projecting part of the fitting part of the lid is detachably mounted over the projecting part of the fitted part protruding rearward at the rear end part of the shaft tube, so that the opening part can be opened and closed freely. And attaching the mounting part formed on the side wall of the rear end of the clip to the mounted part formed on the side wall of the base, and an extending part extending rearward from the mounting part of the clip, A sliding multi-core writing instrument, which is located on an extension line of the engaging portion and the hinge portion of the lid. The inner wall of the extension part and the side wall of the engaging part of the lid body have a gap, and the gap is smaller than the amount of immersion of the engaging part of the lid body into the hinge part. The slide-type multi-core writing instrument according to claim 1.

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