JP2004025781A - Multi-lead writing utensil - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize the selective retraction and extension of the writing tip part of a writing body through the tip opening part of a barrel by pressing a push button member and the easy push button action by a simple structure even in the case that the same color is repeatedly used. <P>SOLUTION: In the multi-lead writing utensil having a retracting and extending mechanism with a rotary cam enabling the writing tip part of a writing body to retract and extend through the tip opening part of the barrel by pressing only one among a plurality of writing bodies at a position eccentric to the axis center of the barrel with the pressing part of the pressing member interlocked with the push button member by pressing the push button member arranged at the rear and part of the barrel with a plurality of the writing bodies arranged therewithin, the pressing part of the pressing member interlocked with the rotation of the push button member can be positioned to the rear end part of one of a plurality of the writing bodies. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a multi-core writing instrument in which a plurality of writing bodies are disposed in a barrel, and more specifically, by pressing a knock member disposed at a rear end of the barrel, the writing body of the writing body is pressed. The present invention relates to a multi-core writing instrument that allows a writing tip to selectively emerge from a tip opening of a barrel.
[0002]
[Prior art]
Conventionally, a plurality of writing bodies are arranged in a barrel, and by pressing a knock member arranged at the rear end of the barrel, a writing tip of the writing body is selected from a tip opening of the barrel. Multifilament writing instruments that can appear and disappear are well known.
[0003]
In such a multi-core writing instrument retracting mechanism, the pendulum member interlocking with the knock member is used for disposing a plurality of cursive members, so that the pendulum member is disposed at an eccentric position with respect to the axis of the barrel. And a pendulum-type multi-core writing instrument that is always positioned in the direction in which gravity is applied regardless of the rotation of the pendulum and can selectively penetrate a writing body disposed at a position facing the pendulum. As disclosed in the "composite writing instrument", the rotating cam function rotates the pushing portion interlocked with the knock member, and allows the pushing portion to selectively emerge from the distal end opening of the barrel.
[0004]
[Problems to be solved by the invention]
However, the conventional multi-core writing implement is, for example, when a two-color writing body such as black and red is disposed in a shaft cylinder, a pendulum-type multi-core writing implement is a writing body at a position facing the pendulum, for example, When black cursive fonts appeared and appeared, even when the same color was used repeatedly, it was necessary to set the barrel to the position where black cursive letters appeared and appeared (the direction in which the pendulum was placed on the black cursive font). . In addition, the rotary cam function rotates the pusher interlocking with the knock member, and the multi-core writing instrument that can selectively appear and disappear from the tip opening of the barrel has a black writing body that appears and then reappears. In order to make the cursive character of protrude, it was necessary to make the red cursive character appear and disappear once.
[0005]
In view of the above problems, the present inventor presses a knock member disposed at the rear end of the barrel so that the writing tip of the writing body can selectively emerge from the tip opening of the barrel. It is an object of the present invention to provide a multi-core writing instrument that can easily knock even when the same color is repeatedly used.
[0006]
[Means for Solving the Problems]
The present invention provides a plurality of writing bodies in the barrel, and by pressing a knock member provided at the rear end of the barrel, the pressing portion of the pressing member interlocking with the knock member is provided in the barrel. A multi-core writing tool having a retractable mechanism with a rotating cam capable of pressing only one of a plurality of writing bodies at an eccentric position with respect to an axis and allowing a writing tip of the writing body to protrude and retract from a tip opening of a barrel. The pressing portion of the pressing member interlocked with the knocking member is interlocked with the rotation of the knocking member, and can be positioned at the rear end of one of the plurality of writing objects.
[0007]
Further, by disposing a plurality of writing bodies in the barrel and pressing the knock member provided at the rear end of the barrel, the pressing portion of the pressing member interlocking with the knock member is moved to the axial center of the barrel. A multi-core writing tool having a retracting mechanism with a rotating cam capable of pressing a writing tip of a plurality of writing bodies at a position eccentric with respect to the writing body and allowing a writing tip of the writing body to protrude and retract from a tip opening of a barrel. Along with mounting a rotating member rotatable with respect to the barrel at the rear end of the barrel, a pressing portion of a pressing member interlocked with the knock member is interlocked with the rotation of the rotating member, and a plurality of writing elements The position can be positioned at one rear end.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. In the drawings, the same members and the same portions are denoted by the same reference numerals.
A multi-core writing instrument 1 according to the first embodiment shown in FIGS. 1 to 5 forms a barrel by screwing a rear shaft 3 to a rear end of a front shaft 2, and further comprises a rear end of the barrel. A crown member 4 having a clip 5 is mounted. A grip member 20 is attached to a grip portion of the front shaft 2.
[0009]
A writing body (ballpoint pen body) 11 having a black ink color is inserted into the front shaft 2 and the rear shaft 3 so as to pass through a positioning hole (not shown) of a positioning member 19 attached to the rear shaft 3. The writing body (ballpoint pen body) 14 of red color is urged toward the rear end 4a of the crown member 4 by the resilient members 17 and 18 and stored. The writing body 11 contains a black ink (not shown) provided with shear thinning in an ink storage cylinder and an ink follower (not shown) which follows the ink consumption at the rear end of the ink. The writing tip 12 (ballpoint pen tip) holding the ball rotatably is press-fitted to the tip of the ink container. The cursive body 14 is similar to the cursive body 11 except that the ink color is red. It has a structure in which an ink follower (not shown) to be followed is accommodated, and a writing tip portion 15 (ballpoint pen tip) which rotatably holds a ball is press-fitted to the tip of the ink containing cylinder.
[0010]
To use the cursive body 11, first, the knock member 6 protruding outward from the rear end 4a of the crown member 4 is rotated (in the direction of arrow F or M in FIG. The displayed arrow 21 is made to coincide with the black (BLACK) arrow 22 displayed on the knock member 6. At this time, by engaging the projection 8b of the pressing member 8 with the engagement hole 6a of the knocking member 6, the pressing member 8 also rotates in conjunction with the rotation of the knocking member 6, and the pressing portion 8a of the pressing member 8 It is set so as to be located at the rear end of the cursive writing 11. Since knock member 6 is arranged to be rotatable 360 degrees, the rotation direction of knock member 6 (the direction of arrow F or M in FIG. 3) is not limited. Next, by pushing the knock member 6 urged in the direction of the rear end 4a of the crown member 4 by the coil spring 10 in the direction of the front end opening 2a, the push rod 9 is interlocked with the knock member 6, and the rotating cam 7 is rotated. Operate forward while rotating along a cam groove (not shown). The pressing member 8 attached to the rear end of the writing body 11 is pressed by the pressing portion 8a of the pressing member 8 that is interlocked only with the operation of the rotary cam 7 in the front-back direction, and the writing tip 12 is moved from the tip opening 2a. It can be used by protruding.
[0011]
Thereafter, in order to use the writing body 14, the knock member 6 is pressed again in the direction of the tip opening 2a, and the writing tip 12 of the writing body 11 is immersed in the tip opening 2a by the action of the rotating cam 7, and then Then, the knock member 6 is rotated so that the arrow 21 displayed on the outer peripheral surface of the rear shaft 3 and the red arrow (not shown) on the display portion displayed on the knock member 6 coincide with each other. At this time, by engaging the projection 8b of the pressing member 8 with the engaging hole 6a of the knocking member 6, the pressing member 8 also rotates in conjunction with the rotation of the knocking member 6 (the direction of arrow F or M in FIG. 3). Then, the pressing portion 8 a of the pressing member 8 is located at the rear end of the writing body 14. Further, since knock member 6 is arranged to be rotatable 360 degrees, the rotation direction of knock member 6 (the direction of arrow F or M in FIG. 3) is not limited. Next, by pushing the knock member 6 in the direction of the tip opening 2a, the pushing portion 8a of the pushing member 8 pushes the pushed member 16 attached to the rear end of the writing body 14, and the writing tip 15 is moved to the tip. It can be used by projecting from the opening 2a. Further, it can be used regardless of the position of the clip member 5.
[0012]
In the present embodiment, the pressing member 8 can be interlocked with the front-rear direction and the rotation direction of the knock member 6 by engaging the protrusion 8b formed on the pressing member 8 with the fitting hole 6a formed on the knock member 6. Although they are arranged, the arrangement method is not particularly limited.
[0013]
A multi-core writing instrument 51 according to the second embodiment shown in FIGS. 6 to 11 forms a shaft cylinder by screwing a rear shaft 53 to a rear end of a front shaft 52, and further includes a rear end of the shaft cylinder. The crown member (rotating member) 54 is rotatably mounted on the rear shaft 53 by the overriding fit between the engagement projection 53a of the rear shaft 53 and the engagement projection 54b of the crown member 54. It is. Further, a grip member 70 is mounted on a grip portion of the front shaft 52.
[0014]
In the same manner as in the first embodiment, the ink color is black in the front shaft 52 and the rear shaft 53 so as to pass through a positioning hole (not shown) of a positioning member 69 attached to the rear shaft 53. The writing body (ballpoint pen body) 11 and the writing body (ballpoint pen body) 14 having a red ink color are housed by urging members 17 and 18 toward the rear end 54a of the crown member 54.
[0015]
To use the cursive writing 11, first, the crown member 54 is rotated (in the direction of arrow F or M in FIG. 8), and the arrow 71 displayed on the outer peripheral surface of the rear shaft 53 and the outer peripheral surface of the crown member 54 are moved. The displayed black (BLACK) arrow 72 is matched. At this time, by fitting over the engagement protrusion 53a of the rear shaft 53 and the engagement protrusion 54b of the crown member 54, the crown member 54 is rotatably mounted on the rear shaft 53, and is inserted into the crown member 54. The protrusion 54c is formed, and the protrusion 58b of the pressing member 58 is loosely fitted in the groove 54d formed by the protrusion 54c so as to be slidable in the axial direction, thereby rotating the crown member 54 (arrow in FIG. 8). The pressing member 58 also rotates in conjunction with the (F or M direction), and the pressing portion 58a of the pressing member 58 is set so as to be located at the rear end of the writing body 11. Since the crown member 54 is disposed so as to be rotatable by 360 degrees, the rotation direction of the crown member 54 (the direction of the arrow F or M in FIG. 8) is not limited. Next, the knock member 56 urged in the direction of the rear end 54a of the crown member 54 by the coil spring 60 is pressed in the direction of the front end opening 52a, so that the rotating cam 57 interlocked with the knock member 56 is moved to the cam groove 73. Acts forward while rotating along. The pressed member 13 attached to the rear end of the writing body 11 is pressed by the pressing portion 58a of the pressing member 58 that is interlocked only with the operation of the rotating cam 57 in the front-rear direction, and the writing tip 12 is moved from the tip opening 52a. It can be used by protruding.
[0016]
Thereafter, in order to use the writing body 14, the knock member 56 is pressed again in the direction of the tip opening 52a, and the writing tip 12 of the writing body 11 is immersed from the tip opening 52a by the action of the rotating cam 57. By rotating the crown member 54, the arrow 71 displayed on the outer peripheral surface of the rear shaft 53 and the red arrow (not shown) displayed on the crown member 54 match. At this time, the pressing member 58 also rotates in conjunction with the rotation of the crown member 54 (the direction of arrow F or M in FIG. 8), and the pressing portion 58 a of the pressing member 58 is located at the rear end of the writing body 14. Further, since the crown member 54 is disposed so as to be rotatable by 360 degrees, the rotation direction (the arrow F or M direction in FIG. 8) of the crown member 54 is not limited. Next, by pressing the knock member 56 in the direction of the distal end opening 52a, the pressing portion 58a of the pressing member 58 presses the pressed member 16 attached to the rear end of the writing body 14, and the writing distal end 15 is moved to the distal end. It can be used by projecting from the opening 52a.
[0017]
The multi-filament writing instrument of the present invention may be configured such that once the writing tip of the writing body is immersed from the barrel opening, if the same color is used repeatedly, the knock member may be pressed as it is in the barrel opening direction. .
[0018]
Further, the multi-core writing implement of the present invention is not limited to the above-mentioned multi-core writing implement having two ball-point pen bodies, but includes three or four ball-point pen bodies, a mechanical pencil and a ball-point pen body, or three mechanical pencil bodies. It can be used for a generally known multi-core writing instrument.
[0019]
【The invention's effect】
Since the present invention has the above-described configuration, it is possible to provide a multi-core writing instrument with a simple structure that can easily knock even when the same color is repeatedly used.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a multi-core writing instrument according to a first embodiment.
FIG. 2 is a longitudinal sectional view showing a state in which the writing body in FIG. 1 is projected.
FIG. 3 is an external view showing a multi-core writing instrument according to the first embodiment.
FIG. 4 is an enlarged sectional view of a main part of FIG. 1 with a part omitted.
FIG. 5 is an enlarged sectional view taken along the line AA in FIG. 1;
FIG. 6 is a longitudinal sectional view showing a multi-core writing instrument according to a second embodiment.
FIG. 7 is a longitudinal sectional view showing a state in which the writing body in FIG. 6 is projected.
FIG. 8 is an external view showing a multi-core writing instrument according to a second embodiment.
FIG. 9 is an enlarged sectional view of a main part of FIG. 6, with a part omitted.
FIG. 10 is an enlarged sectional view taken along line BB in FIG. 6;
11 is an enlarged sectional view taken along the line CC in FIG. 6;
[Explanation of symbols]
1,51 Multi-core writing implement 2,52 Front shaft 2a, 52a Tip opening 3,53 Rear shaft 4 Crown member 5 Clip member 6,56 Knock member 7,57 Rotating cam 8,58 Pressing member 11,14 Writing body 12 , 15 Writing tip 21, 71 Shaft tube arrow 22 Knock member arrow 72 Head cap member arrow

Claims (2)

By disposing a plurality of writing bodies in the barrel, and by pressing the knock member provided at the rear end of the barrel, the pressing portion of the pressing member interlocking with the knock member is positioned with respect to the axis of the barrel. An eccentric position, and presses only one of a plurality of writing bodies, a writing tip of the writing body, a multi-core writing implement having a retracting mechanism by a rotating cam that can be retracted from a distal end opening of a barrel, A multi-core writing implement, wherein a pressing portion of a pressing member interlocked with the knock member is interlocked with rotation of the knock member and can be positioned at a rear end of one of a plurality of writing objects. By disposing a plurality of writing bodies in the barrel, and by pressing the knock member provided at the rear end of the barrel, the pressing portion of the pressing member interlocking with the knock member is positioned with respect to the axis of the barrel. An eccentric position, and presses only one of a plurality of writing bodies, a writing tip of the writing body, a multi-core writing implement having a retracting mechanism by a rotating cam that can be retracted from a distal end opening of a barrel, A rotating member rotatable with respect to the barrel is mounted on the rear end of the barrel, and a pressing portion of a pressing member interlocked with the knock member is interlocked with the rotation of the rotating member to form one of a plurality of writing bodies. A multi-core writing implement characterized in that it can be positioned at the rear end.

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