JP2012161977A - Slide type multi-core writing instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide type multi-core writing instrument having a safety mechanism in which a writing tip of a writing body automatically sinks in a tip opening of a shaft by lifting a clip when inserted into a pocket of a garment in a state that the writing tip of the writing body protrudes from the tip opening of the shaft.SOLUTION: A locking wall 11 is formed inside a clip 3. In a rear shaft 2 (shaft), a locking projection 22 lockable with the locking wall 11, and a releasing body 26 having a plurality of slide grooves 24 for housing a sliding body 19 are provided so as to be biased in the forward direction of the rear shaft 2 by a coil spring 31. The sliding body 19 is housed in each of the slide grooves 24 so that the locking projection 22 projects from a locking hole 27 formed at a side 2a of the rear shaft 2. When the tip of a ball-point pen body 12 (writing body) protrudes, the locking projection 22 abuts on the locking wall 11 and the tip of the clip 3 separates from the side 2a of the rear shaft 2 to release the locking state, and then the releasing body 26 and the ball-point pen body 12 retreat.

Description

  The present invention automatically inserts the writing tip into the tip opening of the shaft tube when attempting to insert the writing tip of the writing body into a pocket of clothing or the like while protruding from the tip opening of the shaft tube. The present invention relates to a sliding multi-core writing instrument with a safety mechanism.

  Conventionally, there are a plurality of operation portions in the shaft cylinder that have an operation portion that is urged by a spring in a rearward direction of the shaft tube and protrudes outward from a slide hole formed in a side portion of the shaft tube and extending in the axial direction. The sliding body is slidably accommodated back and forth with respect to the shaft cylinder, the writing body is detachably connected to each sliding body, and the operating portion is slid in the front side direction of the shaft cylinder to advance the sliding body, The writing tip of the writing body protrudes from the opening of the tip of the shaft cylinder and maintains that state, and the other operation part slides in the front side direction of the shaft cylinder to advance the other sliding body. A slide-type multi-core writing instrument that immerses the writing tip into the tip opening of the shaft tube is well known.

  In the slide-type multi-core writing instrument, the writing tip of the writing body accommodated in the shaft tube is inserted into a clothing pocket or the like in a state of protruding from the tip opening of the shaft tube, and the cloth is soiled. When the writing tip of the cursive body protrudes from the tip opening of the shaft tube, when trying to insert it into a pocket of clothing, etc., the writing tip automatically becomes the tip opening of the shaft tube. Something with a safety mechanism to immerse is proposed.

 As the previous technology, a locking protrusion that immerses in the shaft cylinder is provided inside the clip, and a release lever and a plurality of core mounting knocks that always apply upward spring pressure are arranged in the shaft cylinder to release the clip. The upper part of the lever and the upper part of the knock are provided with inward protrusions so as to have a crossing relationship in the vertical direction, and a driven protrusion provided at the lower part of the release lever and an action protrusion provided at the lower part of the knock. Japanese Patent No. 4201292 discloses a structure that has a crossing relationship in the vertical direction, and has a release hole formed with a locking hole into which a locking projection of the clip is fitted at the lower end.

  In the above structure, when the writing tip of the writing body is projected from the tip opening of the shaft tube, the knock (sliding body) 7 and the release lever 15 are pushed down, but the return spring 9 of the knock (sliding body) 7 Since the release lever 15 is also applied upward by the spring pressure of the return spring 18, there is a problem that the operation becomes heavier than the conventional slide type multi-core writing instrument. . Further, when the writing tip of the writing body is retracted from a state where it protrudes from the tip opening of the shaft tube, the release spring 15 is simultaneously pushed up by the knock spring 7 and the return spring 18 by the return spring 9, so that the release from the knock 7 is released. There is a problem that the contact sound of the lever 15 to the shaft cylinder 1 is increased.

Japanese Patent No. 4201292

  The present invention has been made in view of the above-mentioned fact, and is urged in the shaft tube by a spring in the rear direction of the shaft tube, and outward from the slide hole formed in the side portion of the shaft tube and extending in the axial direction. A plurality of sliding bodies having operating portions protruding in the direction are accommodated so as to be slidable back and forth with respect to the shaft cylinder, a writing body is detachably connected to each sliding body, and the operating section is slid in the front side direction of the shaft cylinder. By moving the sliding body forward, the writing tip of the writing body protrudes from the tip opening of the shaft cylinder and maintains that state, and the other operation section slides in the front side direction of the shaft cylinder to move the other sliding body. In the slide type multi-core writing instrument in which the writing tip of the writing body is immersed in the tip opening of the shaft cylinder by moving forward, the clothing with the writing tip of the writing body protruding from the tip opening of the shaft cylinder When the clip tip is lifted when trying to insert it into the pocket, etc., the writing tip automatically The safety mechanism that immerses in the opening of the tip of the shaft tube is less heavy than the conventional slide mechanism that does not have a safety mechanism, and the writing tip of the cursive body is the shaft tube. An impulsive sound generated when the leading end opening of the member is immersed and caused by the impingement between the members is provided so as not to be inferior to that of the conventional member having no safety mechanism.

The present invention
“A locking wall that protrudes toward the side of the shaft tube is provided inside the clip provided on the side of the shaft tube, and a locking hole is provided on the side of the shaft tube that faces the clip. A release body constituted by a release portion having a locking projection that can be locked to the locking wall portion and a case portion having a plurality of sliding grooves that accommodate the sliding body is axially supported by a spring. Energizing in the front direction of the cylinder, the locking projection protrudes outward from the locking hole and is positioned on the front side of the shaft cylinder from the locking wall portion of the clip, and is provided to be movable back and forth with respect to the shaft cylinder. It has an operation part on one side, and has a first locking protrusion formed side by side in the axial direction on the opposite side part and a second locking protrusion formed with an inclined surface. The sliding body biased in the rearward direction of the cylinder protrudes outward from a slide hole extending in the axial direction in which the operating portion is formed on the side of the axial cylinder, and each sliding body of the release body The slide body is slidably accommodated in each slide body, and the writing body is detachably connected to each slide body. The operating portion is slid in the front side direction of the shaft cylinder to advance the slide body relative to the release body, and the rear end portion of the slide body Engages the front end of the case part, presses the release body backward, the engagement projection of the release body abuts the engagement wall part of the clip, and the writing tip of the writing body opens the tip of the shaft cylinder. Maintain the state of protruding from the part and slide the other operating part toward the front side of the barrel to advance the sliding body, or the clip tip is lifted up, and the locking projection of the releasing body engages with the locking wall. When the stop is released, the release body is retracted, and the sliding body is retracted, the first locking projection of the sliding body comes into contact with the inclined surface of the second locking projection of the other sliding body and the rear of the sliding body. The locking of the end portion to the front end portion of the case portion is released, the sliding body returns to the original position of the sliding groove, and the writing tip portion of the writing body is Sliding multifilamentary writing instrument, characterized in that retracts the end opening. "
It is.

  In the present invention, the locking wall portion provided on the inner side of the clip may be formed on a protruding portion provided on the inner side of the tip end portion of the clip and protruding toward the side portion of the so-called ball portion. A locking wall portion may be provided inside the clip.

  The locking wall portion formed on the inner side of the clip is provided so that a part thereof is inserted into the locking hole formed in the side portion of the shaft cylinder facing the clip, and is provided in the locking wall portion and the shaft tube. The locking projection of the releasing part of the releasing body may be locked, or the tip of the locking wall is provided so as to be positioned away from the surface of the side portion of the shaft tube, and the locking protrusion is provided. You may provide so that a locking wall part and a locking protrusion may contact | abut by making it protrude outward from a locking hole.

  In the present invention, the writing body refers to a ball-point pen body that contains oil-based, water-based, or gel-like writing ink in an ink containing cylinder, a mechanical pencil body that contains a lead core in a core tank, and the like. is there.

  Since the present invention has the structure as described above, the structure is not complicated and it is not complicated to assemble, and the writing tip is intended to be inserted into a clothing pocket or the like while protruding from the tip opening of the shaft tube. In this case, a slide-type multi-core writing instrument to which a safety mechanism in which the writing tip portion is automatically immersed in the tip opening portion of the shaft tube can be obtained.

  Further, since the release portion is not biased by the spring toward the rear side of the shaft tube, the operation unit for projecting the writing tip portion of the writing body from the tip opening of the shaft tube slides in the front side direction of the shaft tube. The operation does not become heavier than the operation of the sliding body in the conventional slide-type multi-core writing instrument, and when the writing tip of the writing body is immersed from the state of protruding from the tip opening of the shaft tube, Similar to the structure of the slide type multi-core writing instrument, the release body is also slightly retracted, but since the spring is not biased toward the rear side of the shaft cylinder, only the sliding body is moved toward the rear side of the shaft cylinder by the spring. Since it is energized, the impact sound due to the impact between the members can be as large as that of a conventional device without a safety mechanism.

It is a longitudinal cross-sectional view of the principal part of a slide-type multi-core writing instrument which shows the Example of the slide-type multi-core writing instrument of this invention. It is an enlarged end elevation of the AA line part in FIG. FIG. 3 is an enlarged end view of a BB line portion in FIG. 1. It is an enlarged end view of the CC line part in FIG. It is the longitudinal cross-sectional view of the principal part of the slide-type multi-core writing instrument which showed the state which cut | disconnected the DE line part in FIG. 2, and expand | deployed on the plane. It is an expansion perspective view of the cancellation | release body in FIG. It is an expansion perspective view of a cancellation body which shows the state which looked at the cancellation body in FIG. 6 from the lower side. In FIG. 1, a longitudinal section of the main part of a slide-type multi-core writing instrument showing a state in which the sliding body is slid forward on the writing body side and the writing tip portion of the writing body is projected and maintained from the tip opening of the shaft cylinder. FIG. In FIG. 5, it is the longitudinal cross-sectional view of the principal part of the slide-type multi-core writing instrument which showed the state which advanced one sliding body. In FIG. 8, it is a longitudinal cross-sectional view of the principal part of a slide-type multi-core writing instrument showing a state where the tip of the clip is lifted.

  The present invention includes a plurality of operation portions that are biased in a rearward direction of a shaft tube by a spring and project outward from a slide hole formed in a side portion of the shaft tube and extending in the axial direction. The slide body is slidably accommodated in the front and rear with respect to the shaft cylinder, the writing body is detachably connected to each slide body, and the operation unit is slid in the front side direction of the shaft cylinder to advance the slide body. The writing tip of the writing body protrudes from the tip opening of the shaft tube and maintains the state, and the other operation unit slides in the front side direction of the shaft tube to advance the other sliding body. In a slide type multi-core writing instrument that immerses the writing tip of the writing tube into the tip opening of the shaft tube, when the writing tip of the writing body protrudes from the tip opening of the shaft tube and is inserted into a clothing pocket, etc. When the clip tip is lifted away from the side of the shaft tube, the writing tip automatically opens the tip of the shaft tube. A safety mechanism that retracts to provide.

An embodiment of the slide type multi-core writing instrument of the present invention will be described with reference to the drawings.
Although not shown, the slide-type multi-core writing instrument 1 of the present embodiment has a configuration in which the shaft tube can be detachably connected by screwing the front shaft and the rear shaft. The structure will be described in which three ballpoint pens of different colors are housed. However, a structure in which two ballpoint pen bodies and one mechanical pencil body are housed or a structure in which two ballpoint pen bodies are housed may be used. The number of pencil bodies is not limited by this example.

  In the description, the description will be made using the portion of the rear shaft (shaft cylinder) 2 of the slide type multi-core writing instrument 1 which is a main part. As shown in FIG. 1, the slide-type multi-core writing instrument 1 of the present embodiment is provided with a clip 3 on a side portion 2 a of a rear shaft 2 and a rotating shaft portion 5 on a main column 4 formed integrally with the rear shaft 2. The clip 3 engages with the rotary bearing recess 6 provided on the both side walls 3a of the rear end portion of the clip 3 so that the clip front end portion 3b can be rotated so as to be separated / abutted against the side portion 2a of the rear shaft 2. It is attached. In addition, a protrusion 7 extending toward the clip 3 side is provided on the side 2a of the rear shaft 2, and a protrusion 8 extending toward the side 2a of the rear shaft 2 is provided on the inner wall of the clip 3, and both ends of the protrusion 7 are provided. The coil spring 9 is disposed so as to be fitted to the pins 7 and 8 so that the clip tip 3b is urged toward the side 2a of the rear shaft 2.

  On the inner side of the clip tip 3b, as seen in a conventional clip, toward the side 2a of the rear shaft 2 for clamping the pocket fabric or the like with the shaft cylinder when inserted into a pocket or the like of clothing. Projecting portions 10, which are so-called protruding ball portions, are provided in two rows in parallel, and a locking wall portion 11 protruding toward the side portion 2 a of the rear shaft 2 is provided between the ball portions 10. .

  Inside the rear shaft 2, a sleeve 13 for holding the ballpoint pen body 12 accommodated in the shaft cylinder so as not to move in the circumferential direction is fixed to the rear shaft 2 in the same manner as a conventional slide type multi-core writing instrument. It is provided. The front end portion 2b of the rear shaft 2 is provided with a female screw portion 14 that is screw-fitted to a male screw portion formed on the front shaft (not shown), and can be detachably connected to the front shaft. Further, the side 2a of the rear shaft 2 has a side 2a opposite to the side 2a of the rear shaft 2 to which the clip 3 is attached, and a side at a position shifted by 90 degrees on both sides in the circumferential direction of the side. A slide hole 15 extending in the axial direction is formed in the part.

  Similar to the conventional slide type multi-core writing instrument, the operation part 16 protruding from the side part, the first locking protrusion part 17 protruding from the side part opposite to the operation part 16, and the first locking protrusion A sliding body 19 provided with a second locking portion 18 projecting from a side portion in front of the portion 17 (leftward in the figure) is caused to project a part of the operation portion 16 from the slide hole 15, and the coil spring 20. Thus, the rear shaft 2 is urged in the rear direction (right direction in the drawing) and is accommodated in the rear shaft 2 so as to be slidable back and forth with respect to each slide hole 15. Each sliding body 19 is detachably connected to ball pen bodies 12a, 12b, 12c of different ink colors, and the ball pen bodies 12a, 12b, 12c are inserted into the respective insertion holes 21 provided in the sleeve 13. The ballpoint pen body 12 is placed in the shaft cylinder (in the rear shaft 2), the side 2a opposite to the side 2a of the rear shaft 2 to which the clip 3 is attached, and 90 degrees on both sides in the circumferential direction of the side. It is accommodated by being positioned on the side of the shifted position (see FIG. 2).

  Further, in the rear shaft 2, as shown in FIGS. 6 and 7, a release portion 23 having a locking projection 22 that can be locked to the locking wall portion 11 of the clip 3, and the sliding body 19. The release body 26 constituted by the sliding case portion 25 having the sliding groove 24 penetrating in the front and rear direction provided corresponding to the slide hole 15 that accommodates the rear projection 2 of the clip 3 facing the locking projection 22. It protrudes outward from the locking hole 27 provided in the side portion 2a. Reference numeral 28 denotes a fixed leg portion that abuts against the inner wall surface of the rear shaft 2 so that the release body 26 does not rattle within the rear shaft 2. The locking hole 27 is provided in the side portion of the rear shaft 2 by cutting out the side portion 2a into a concave shape (see FIG. 2).

  The release body 26 includes a spring fixing portion 29 protruding toward the release body 26 on the rear end inner wall surface 2c of the closed rear shaft 2, and a spring fixing portion protruding toward the spring fixing portion 29 at the rear end of the release body 26. A coil spring 31 that is stretched by fitting both ends to the portion 30 is urged in the front side direction of the rear shaft 2 and the locking projection 22 is forward of the locking wall portion 11 of the clip 3 (left side in FIG. 1). The rear shaft 2 is disposed so as to be movable rearward. The front end portion 23a of the release portion 23 is inserted into the holding hole 32 provided in the sleeve 13 so as not to rotate in the circumferential direction.

  In each sliding groove 24 of the case portion 25 of the release body 26, each sliding body 19 is slidably accommodated back and forth (see FIG. 3), and a stopper protrusion formed on the rear end 2d of the rear shaft 2. The portion 33 is inserted into the rear end portion of each sliding groove 24 (see FIG. 4), and a contact protrusion 34 is provided at the rear end portion of each sliding body 19 so as to contact the stopper protrusion 33. The sliding body 19 is prevented from moving backward relative to the sliding groove 24.

  The engagement state of the other sliding body 19 at this time is as shown in FIG. 5 which shows a state in which the line D-E in FIG. 2 is cut and developed on a plane, and is a conventional sliding multi-core writing instrument. It is the same as the case.

  The operation will be described. Like the conventional slide type multi-core writing instrument, for example, as shown in FIG. 8, for example, a ballpoint pen is used to project the writing tip of the ballpoint pen body 12 of the color to be used from the opening tip of the shaft cylinder. When the operating body 16a of the body 12a is moved forward along the slide hole 15 and the sliding groove 24 in the direction of the front end 2b of the rear shaft 2, the sliding body 19a is detached from the sliding groove 24 and moved inward. Then, the rear end surface 35 of the sliding body 19 a is locked with the front end surface 36 of the case portion 25 of the release body 26. Since the sliding body 19 a is urged rearward by the coil spring 20, the release body 26 moves backward via the case portion 25, and the locking projection 22 comes into contact with the locking wall portion 11 of the clip 3, thereby releasing the release body 26. The sliding body 19a is prevented from moving backward, and although not shown, the writing tip of the ball-point pen body 12a is maintained in a state of protruding from the tip opening of the shaft tube.

  At this time, as shown in FIG. 9, the engagement state of the other sliding body 19b of the sliding body 19a is such that the first locking projection 17 of the sliding body 19a corresponds to the second locking projection 18 of the other sliding body 19b. Located in front.

  When the clip tip 3b is lifted to be inserted into a clothing pocket or the like with the writing tip of the writing body protruding from the tip opening of the shaft tube, as shown in FIG. The clip 3 is unlocked from the locking wall 11, and the releasing body 26 and the sliding body 19 a can be retracted. As shown in FIG. 9, the other sliding body 19 b is attached to the rear end 2 d of the rear shaft 2. The formed protrusion 33 for stopper is in contact with the contact protrusion 34 formed at the rear end of each sliding body 19, so that it does not move backward, and the first locking protrusion 17 of the sliding body 19a is another sliding body. Abutting on the inclined surface 37 of the second locking projection 18 of 19b and being pressed outward, the locking of the rear end surface 35 of the sliding body 19a and the front end surface 36 of the case portion 25 of the release body 26 is released, The sliding body 19a returns to its original position, and the writing tip of the ballpoint pen body 12a is It retracts to open the distal end portion of the cylindrical.

  Similar to the conventional slide type multi-core writing instrument, even if the other sliding body 19b is slid and moved forward in the direction of the tip opening of the shaft tube, the inclined surface 37 of the second locking projection 18 of the other sliding body. Contacts the first locking projection 17 of the sliding body 19a, the sliding body 19a is pressed outward, and the rear end surface 35 of the sliding body 19a and the front end surface 36 of the case portion 25 of the release body 26 are locked. The sliding body 19a returns to its original position, and the writing tip of the ball-point pen body 12a is immersed in the opening tip of the shaft tube.

  According to the present invention, a plurality of writing bodies accommodated in a shaft cylinder are moved forward by sliding an operation portion projecting from a slide hole formed in a side portion of the shaft cylinder so that the writing tip portion of the writing body is moved to the tip of the shaft cylinder. Maintain the protruding state from the opening, slide the other operation part in the direction of the opening of the tip of the shaft tube, and advance the other sliding body, thereby moving the writing tip of the writing body to the tip opening of the shaft tube. In an immersive slide type multi-core writing instrument, when the writing tip of the writing body protrudes from the opening of the tip of the shaft tube and is inserted into a pocket of clothing, the writing tip automatically becomes the tip of the shaft tube. It can be used when it is desired to be immersed in the opening, and can also be applied to tools or the like in which a screwdriver or the like is housed in the shaft tube instead of the cursive body.

DESCRIPTION OF SYMBOLS 1 Sliding multi-core writing instrument 2 Back axle, 2a Side part 3 Clip 11 Locking wall part 12 Ball-point pen body (writing body)
15 Slide hole 16 Operation part 17 1st latching protrusion 18 2nd latching protrusion 19 Slide body 20 Coil spring 22 Locking protrusion 23 Release part 24 Sliding groove 25 Case part 26 Release body 27 Locking hole 31 Coil spring 35 Rear end surface 36 Front end surface 37 Inclined surface

Claims (1)

  A locking wall that protrudes toward the side of the shaft tube is provided inside the clip provided on the side of the shaft tube, and a locking hole is provided on the side of the shaft tube that faces the clip. A release body constituted by a release portion having a locking projection that can be locked to the locking wall portion and a case portion having a plurality of sliding grooves that accommodate the sliding body is provided in the cylinder by a spring. The locking projection protrudes outward from the locking hole and is positioned on the front side of the shaft tube from the locking wall portion of the clip so as to be movable back and forth with respect to the shaft tube. Having an operating portion on the other side, a first locking projection formed in an axial direction on the opposite side, and a second locking projection formed with an inclined surface, and a shaft cylinder by a spring. Each sliding groove of the releasing body protrudes outwardly from a slide hole extending in the axial direction in which the operation portion is formed on the side portion of the shaft cylinder. The sliding body is slidably accommodated, and the writing body is detachably connected to each sliding body, the operation unit is slid in the front side direction of the shaft cylinder, the sliding body is advanced with respect to the releasing body, and the rear end portion of the sliding body is While locking to the front end portion of the case portion, the release body is pressed backward, the locking protrusion of the release body abuts against the locking wall portion of the clip, and the writing tip portion of the writing body is the tip opening portion of the shaft tube Keeping the protruding state from the other side, sliding the other operating part toward the front side of the barrel to advance the sliding body, or the clip tip is lifted up, and the locking projection of the releasing body locks with the locking wall Is released, the release body moves backward, and the sliding body moves backward, so that the first locking projection of the sliding body comes into contact with the inclined surface of the second locking projection of the other sliding body and the rear end of the sliding body The lock on the front end of the case is released, the sliding body returns to the original position of the sliding groove, and the writing tip of the writing body is at the tip of the shaft cylinder. Multicore writing instrument sliding, characterized in that retracts into the opening.

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