JPH0667677B2 - Liquid supplier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a liquid supply body useful for a pen tip, an induction core, and the like for various applications.

(Prior Art) A plurality of supply elements are bundled, and the outer circumferences of these are covered with an outer cover to form them.

(Reference, Japanese Utility Model Publication No. 49-21614, Japanese Utility Model Publication No. 52-13524
(6 gazette) The manufacturing method is such that the required number of supply elements are extruded from each die, stretched, rapidly cooled, molded and then focused, and then coated with a jacket having a temperature not higher than the melting temperature of the supply elements. ing. (Reference, Japanese Patent Publication No. 53-40629) Therefore, there are the following problems.

(A) Joint strength between the outer cover and the supply element, and the supply element Since each supply element is only joined by receiving the concentrated pressure by the outer cover, the joint strength is weak, and the joint strength during polishing or writing is low. Due to the pressure and the swelling due to the liquid, the element is apt to be displaced in the axial direction, and there is a disadvantage that the element may slip out or sink into the outer cover. In particular, in the case of a pen tip having a sharp tip, a part of the supply element protrudes from the outer cover or sinks into the outer cover due to the writing pressure, which makes writing substantially impossible.

In order to eliminate the movement of each supply element in the axial direction, there is also a structure in which the supply elements and the outer cover are joined with an adhesive (see Japanese Utility Model Publication No. 53-27064), but the diameter of the liquid supply body is In the case of a unit of several mm, it is not practical because the adhesive has a problem that it migrates into the guide passage of the essential point and invades and fills the guide passage. In addition, not only is it difficult to stabilize the adhesion state, but there are some materials that cannot be adhered, depending on the materials of the outer cover and the supply element, and there are restrictions on the materials.

(B) Cross-sectional structure structure It is difficult to arrange each supply element, and there are cases where the necessary arrangement relationship is disturbed, and there is concern about the passage interval between the supply elements. In particular, even when they are aligned, it is difficult to establish the required fluid-induced tissue structure due to the fact that the guide passages in each supply element do not communicate with each other, and the required guide capacity is stable as designed. I have a difficult compositional anxiety.
As a result, the liquid to induce is limited.

(C) Degree of freedom of cross-sectional shape Focused state by covering a plurality of feeding elements with an outer cover,
That is, since the cross-sectional shape is adjusted, the number of bundles and the shape of the bundles are limited due to operational problems and an absolute lack of joint strength between the supply elements and the outer cover.

(D) Degree of freedom of diameter In the case of a large diameter, there is a limitation in the number of bundles and the form of focusing, and in particular, in the case of a large diameter, the guide passage width is increased in proportion to increasing the diameter of each supply element to obtain a large diameter. Is difficult to control to an optimum capillary force, and the diameter is limited to a certain large diameter or less.

(E) Liquid induction range in cross section Since the jacket occupying the outer circumference does not have a guide passage, the liquid induction range is limited by subtracting the area occupied by the jacket, and the absolute liquid induction range with respect to the diameter is negative. Also, the diameter and the line width do not match when writing.

(Problems to be Solved by the Invention) Problems to be solved by the present invention include strength among a plurality of supply elements, arrangement structure, degree of freedom of cross-sectional shape, degree of freedom of diameter,
It is an object of the present invention to provide a liquid supply body in which problems are solved with respect to all of the liquid induction range in the cross section.

(Means for Solving Problems) Means taken by the present invention for solving the above problems are
Extrusion molding into a uniform structure of the required cross-sectional structure in which a plurality of feed elements each having a guide passage by a capillary force in the axial direction are connected to adjacent feed elements by one or more joints by melt self-adhesion during molding It is characterized by having been made.

(Operation) Since the plurality of supply elements have the same structure of the required cross-sectional structure, which is connected by one or more connecting portions by self-adhesion during molding,
The connection strength between the supply elements is large, the arrayed tissue is stable in the required tissue structure, the degree of freedom of the cross-sectional shape and diameter is high, and the entire cross-sectional range is the liquid induction range.

(Example) Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.

In the drawing, A is a liquid supply body, and this liquid supply body A has a plurality of supply elements 1 each having an induction passage 3 by a capillary force in the axial direction and the supply elements 1 adjacent to each other, and at least one melt time during molding. It is extruded into the same body structure of the required cross-sectional structure that is connected by the connecting portion 2 by welding.

The cross-sectional structure structure has a cross-section structure and the number of constituents of the supply element 1, a cross-section structure and the number of constituents of the connecting portion 2, depending on the application.
Select the appropriate material including the material, and the required arrangement relationship, specifically, the cross section is approximately round, hexagonal, rectangular,
The guide passage 3 is formed between the supply elements 1 in a substantially square shape, a substantially diamond shape, a substantially triangular shape, a substantially square ring shape, a substantially circular ring shape, a substantially cross shape, a substantially single row shape, a substantially cross-sectional shape, and the like. Some or all of them are in communication with each other, or each supply element 1 is independent of each other.

Each feeding element 1 is a combination of the same or different cross-sectional area structure,
The cross-sectional structure is, for example, an appropriate number of ribs 1b from the core portion 1a.
Is formed in the radial direction at an equal angle (Fig. 37 I-
V), a mode in which an appropriate number of ribs 1b are formed in the radial direction from the core portion 1a at an equal angle and at the same time circumferential ribs 1d are formed from the ribs 1b (FIGS. 37 VI to X). A mode in which an appropriate number of ribs 1b are formed from the portion 1a at different angles in the radial direction, and circumferential ribs 1d are formed from the ribs 1b (Fig. 37 X
I), a mode in which an appropriate number of ribs 1b are formed equiangularly in the centripetal direction from the outer ring portion 1c (Fig. 37, XII to XIV), outer ring portion
1c is a mode in which an appropriate number of ribs 1b are formed in the centripetal direction at an equal angle and the ribs 1b are formed in the circumferential direction from the ribs 1b (Fig. 37, XV), and other modes similar to these. is there. The number of constituents of the supply element 1 increases or decreases according to the diameter of the liquid supply body A, the cross-sectional structure structure, and the like, and is generally proportional.

In addition, the supply element has a surface shape similar to these, such as a concavo-convex shape or a flat shape where one ink leakage surface is formed by connecting circles in a continuous line shape, and the core portion 1a, the rib 1b, and the outer ring portion 1c.
In the case where the circles are illustrated in the drawing, the circles have the same diameter or different shapes.

The connecting part 2 includes a mode in which the tip part of the rib 1b or a part of the outer ring part 1c in the supply element 1 also serves, and a mode in combination thereof. The number of constituents of the connecting portion 2 is determined according to the connecting strength between the supply elements 1, the bending strength of the liquid supply body A, the communication relationship between the guide passages 3 of the supply elements 1, and the like.

The material of the liquid supply body A is a thermoplastic synthetic resin and is selected according to the application. For example, if it is a hard type,
It is a resin of the type typified by polyacetal, polycarbonate, polyester, polypropylene, and if it is a flexible type, it is a resin of the type typified by urethane, soft nylon or the like and its elastomer.

Next, the cross-sectional structure structure illustrated in FIGS. 1 to 36 will be described.

The liquid supply body A shown in FIG. 1 has a rib in which six supply elements 1 are adjacent to each other on the outer periphery of the core supply element 1 by selecting the mode shown in FIG. 37I as the cross-sectional configuration of the supply element 1. 1b The front end portion is connected as a connecting portion 2 and each supply element 1 on the outer periphery is formed.
As for the adjacent ribs 1b, the tip portions of the ribs 1b are connected to each other as the connecting portion 2, and the surface of the communication 4 is connected via the guide passage 4 surrounded by the adjacent supply elements 1 with a substantially hexagonal cross section. The cross-sectional structure structure of each of the guide passages 3 communicates with each other.

The liquid supply body A of FIG. 2 has a cross-sectional structure structure basically the same as that of the liquid supply body A illustrated in FIG. 1 by selecting the mode shown in FIG. 37 as the cross-sectional structure of the supply element 1. I am doing it.

The liquid supply body A shown in FIG. 3 is the same as the liquid supply body A illustrated in FIG. I am doing it.

The liquid supply body A of FIG. 4 is the liquid supply body A illustrated in FIG.
In the cross-section structure structure, both of the outer peripheral supply elements 1 are not connected by the connecting portion 2.

The liquid supply body A of FIG. 5 is the liquid supply body A illustrated in FIG.
The cross-section structure of the rib 1b at the position of the guide passage 4 is formed as a connecting portion 2 and the guide passages 3 facing the adjacent supply elements 1 are directly communicated with each other. It has a structure.

The liquid supply body A of FIG. 6 has a transverse cross-section structure structure basically the same as that of the liquid supply body A illustrated in FIG. I am doing it.

The liquid supply body A shown in FIG. 7 is selected as the cross-sectional structure of the supply element 1 shown in FIG.
The six supply elements 1 are connected to the outer periphery of each of the connection portions 2 and the supply elements 1 of the outer periphery are also connected to each other by the connection portions 2, and each of the supply elements 1 has a hexagonal cross section.
The guide passages 3 have independent cross-section structures in which the independent guide passages 4 are also provided between the outer ring portions 1c of the adjacent supply elements 1.

The liquid supply body A of FIG. 8 has a cross-sectional structure structure basically the same as that of the liquid supply body A illustrated in FIG. 7 by selecting the mode shown in FIG. 37 as the cross-sectional structure of the supply element 1. I am doing it.

The liquid supply body A of FIG. 9 has a cross sectional structure structure basically the same as that of the liquid supply body A illustrated in FIG. 7 by selecting the aspect shown in FIG. 37 as the cross section structure of the supply element 1. I am doing it.

In the liquid supply body A of FIG. 10, the aspect shown in FIG. 37 VIII is selected as the cross-sectional structure of the supply element 1, and the six supply elements 1 are opposed to each other by the elongated ribs 1b at their axial center portions. Thus, the shafts are arranged in such a manner that they are aligned in the centripetal direction, and ribs 1d that are adjacent to each other in the circumferential direction are connected by a connecting portion 2, and have a hexagonal cross section and are surrounded by adjacent supply elements 1. A cross-sectional structure structure is formed in which the guide passages 4 facing the same passage 4 communicate with each other through the guide passages 4 in the core portion and the peripheral portion.

For the liquid supply body A of FIG. 11, the embodiment shown in FIG. 37IX is selected as the cross-sectional structure of the supply element 1, and in addition to the cross-sectional structure of the liquid supply body A illustrated in FIG. 1d is connected by a connecting portion 2 and has a cross-sectional structure structure of a hexagonal pipe shape in cross-section.

The liquid supply body A of FIG. 12 has the axial section in addition to the cross-sectional structure of the liquid supply body A illustrated in FIG. The ribs 1b are connected by the connecting portions 2, and the guide passages 4 between the supply elements 1 are hexagonal in cross section and communicate with the guide passages 3 facing the passages 4 and are independent of each other. It has a cross-sectional structure structure.

The liquid supply body A of FIG. 13 is selected as the cross-sectional structure of the supply element 1 shown in FIG. 37IX, and in addition to the cross-sectional structure of the liquid supply body A illustrated in FIG. The ribs 1b of the three feeding elements 1 on the corners are connected by the connecting portion 2 at the axial center portion, and the guiding passages 4 between the feeding elements 1 face each other with the hexagonal cross section. The cross-section structure is such that the ribs 1b communicate with the guiding passage 3 and are independent of each other through the tips of the ribs 1b which are not formed in the axial center.

The liquid supply body A shown in FIG. 14 has the cross-sectional structure of the supply element 1 selected from the modes shown in FIGS. 37 and 38, and three long supply ribs 1b are alternately formed on each of the three supply elements 1. The longitudinal ribs 1b are connected to each other by the connecting portion 2 in the axial center portion while being aligned in the centripetal direction, and the guide passages 4 between the supply elements 1 have radial cross-sections with a hexagonal cross section. The cross-sectional structure structure is such that it is repeatedly bent and communicates with the guide passage 3 facing the same passage 4.

The liquid supply body A in FIG. 15 is the liquid supply body A illustrated in FIG.
Further, the outer peripheral portion of the above has a cross-sectional structure structure in which it is doubly connected to each other by twelve supply elements 1.

The liquid supply body A of FIG. 16 is the liquid supply body A illustrated in FIG.
Further, the outer peripheral portion of the above has a cross-sectional structure structure in which it is doubly connected to each other by twelve supply elements 1.

In the liquid supply body A shown in FIG. 17, the embodiment shown in FIG. 37 is selected as the cross-sectional structure of the supply element 1, and six supply elements 1 are further provided on the outer periphery of the supply element 1 serving as the core. Twelve supply elements 1 are doubly connected to each other by connecting portions 2, and the guide passages 4 between the supply elements 1 have a hexagonal cross section and face each other. It has a cross-sectional structure structure that communicates with and is independent of each other.

In the liquid supply body A shown in FIG. 18, the embodiment shown in FIG. 37 is selected as the cross-sectional structure of the supply element 1, and six supply elements 1 are connected to the outer periphery of the supply element 1 serving as the core by connecting portions 2. In the radial direction, twelve supply elements 1 are formed on the outer circumference of each of them, six of which are connected to each of the inner supply elements 1 by a connecting portion 2 in the radial direction, and are connected to each other in the circumferential direction. The connecting portion 2 forms a connection, and the twelve supply elements 1 on the outer periphery form their outer tangent lines that form the connecting portion 2. The cross-section has a hexagonal pipe shape, and the guide passage between the supply elements 1 is formed. 4 are independent from each other between the lead supply element 1 and the outer supply element 1 while communicating with the guide passages 3 facing the passages 3 in a three-pronged manner.
Further, the guide passage 3 has an independent structure along the inside of the connecting portion 2 on the outer tangent line or has a cross-sectional structure structure in which the guide passage 3 partially communicates via the guide passage 4.

The liquid supply body A shown in FIG. 19 has the cross-sectional structure of the supply element 1 selected from the embodiments shown in FIGS. 37 VI and VII, and each of the six supply elements 1 shown in FIG. Long rib 1b
Aligning with the centripetal method and arranging them so that they face each other at the axial center portion,
Then, twelve supply elements 1 shown in FIG. 37 VI are connected to each of the supply elements 1 on the inner circumference by the connecting portion 2 in the radial direction, and twelve of the supply elements 1 on the outer circumference are provided on the outer circumference. Each supply element 1 has its outer tangent line connected by a connecting portion 2, and the guide passages 4 between the supply elements 1 have a hexagonal cross-section in a cross section, and the guide passages 3 and the guide passages 3 extend radially from the coaxial center portion through the axial center portion. It has a cross-sectional structure structure in which the outer tangent lines communicate with each other to the inside of the connecting portion 2.

The liquid supply body A shown in FIG. 20 is in the shape of a pipe having a round cross section, and has a cross sectional structure structure basically the same as that of the liquid supply body A illustrated in FIG.

The liquid supply body A shown in FIG.
By selecting the embodiment shown in FIGS. 37 and 27, each of the six inner supply elements 1 shown in FIG. 37, VII, has their elongated ribs 1b aligned in the centripetal direction and on each radiation line of 120 degrees. The ribs 1b are arranged so as to be linked to each other by the connecting portion 2 at the axial center portion, and twelve feeding elements 1 shown in FIG. 37 VI are provided on the outer circumference of each rib 1b. Is connected by a connecting portion 2 in a radial direction, and each of the twelve supply elements 1 on the outer circumference is connected by its connecting tangent line by a connecting portion 2, and has a circular pipe cross section and each supplying element. The guide passage 4 between the two communicates with the guide passage 3 facing the same passage 4 and communicates with the inside of the connecting portion 2 of the outer tangent line through the tip of the rib 1b which is not connected at the axial center portion. A cross-sectional structure structure which is independent and further has an independent guide passage 3 along the inside of the connecting portion 2 on the tangent line. I am doing it.

The liquid supply body A in FIG. 22 is the liquid supply body A illustrated in FIG.
In the cross-sectional configuration of FIG. 1, there is no connecting portion 2 of the axial center portion, and the elongated ribs 1b of the inner peripheral supply elements 1 face each other in the coaxial central portion, and the cross-section has a round pipe shape. The guide passage 4 between the first and second guide passages 3 communicates with the guide passage 3 facing the same passage 4 and communicates radially from the coaxial center portion to the inside of the connecting portion 2 of the outer tangent line, and also on the outer tangent line. The cross-section structure is such that the guide passage 3 along the inside of 2 is independent.

The liquid supply body A of FIG. 23 has a round pipe-shaped cross section,
The cross-sectional structure structure is basically the same as that of the liquid supply body A illustrated in FIG.

The liquid supply body A shown in FIG. 24 is the liquid supply body A illustrated in FIG.
37 is replaced with the embodiment shown in FIG. 37, the guide passage 3 is independent in the core portion, and in the outer peripheral portion, a cross-sectional structure structure in which the guide passage 3 communicates with each other via the guide passage 4. I am doing it.

The liquid supply body A of FIG. 25 has ribs 1b in which six supply elements 1 are adjacent to each other in three rows in the horizontal direction and two rows in the vertical direction by selecting the mode shown in FIG. The distal end portion is connected as a connecting portion 2, and the supply elements 1 at diagonal positions are also connected by a substantially cross-shaped connecting portion 2, and the supply elements are arranged in rows and columns in a substantially rectangular transverse cross section. 1 has a cross-sectional structure structure in which the guide passages 3 in 1 directly communicate with each other.

The liquid supply body A shown in FIG. 26 has an outer ring portion 1c in which nine supply elements 1 are adjacent to each other in three rows in the vertical and horizontal directions by selecting the aspect shown in FIG. Partly connected as a connecting part 2 and having a substantially square cross section, the guide passages 3 in each supply element 1 are independent of each other and also between the outer ring parts 1c of the adjacent supply elements 1. Independent guideway 4
There is a cross-sectional structure structure of each.

The liquid supply body A of FIG. 27 has ribs in which twelve supply elements 1 are adjacent to each other in four rows in the horizontal direction and three rows in the vertical direction by selecting the mode shown in FIG. The leading end portion of 1b is connected as a connecting portion 2, and the ribs 1b that face each other are connected between the ribs 1b that face each other in a diagonal relationship between the upper right corner and the lower left corner.
The guide passages 3 in each of the supply elements 1 communicate with each other in rows and columns and are surrounded by each adjacent supply element 1 and divided into two by a connecting portion 2. The guide passage 3 facing the generated guide passage 4 is the guide passage 4
The cross-sectional structure structure is such that they communicate with each other.

In the liquid supply body A of FIG. 28, the embodiment shown in FIG. 37 is selected as the cross-sectional structure of the supply element 1, and the four supply elements 1 are connected to the leading end portions of the ribs 1b adjacent to each other in a substantially rhombic shape. The portions 2 are connected to each other and have a substantially rhombic cross section, and the guide passages 3 facing between the adjacent supply elements 1 are directly communicated with each other to have a cross sectional structure structure.

In the liquid supply body A of FIG. 29, the mode shown in FIG. 37 is selected as the transverse cross-sectional structure of the supply element 1, and the three supply elements 1 are connected to the tips of the ribs 1b adjacent to each other in a substantially triangular shape. The parts 2 are connected to each other and have a substantially triangular cross section, and the guide passages 3 facing between the adjacent supply elements 1 are directly connected to each other to have a cross sectional structure structure.

The liquid supply body A shown in FIG. 30 has a configuration shown in FIG. 37 as a transverse cross-sectional structure of the supply element 1, and ten supply elements 1 have ribs 1b tip portions which are adjacent to each other in a substantially triangular shape. The connecting portions 2 are connected to each other, have a substantially triangular cross section, and have a cross sectional structure structure in which the guide passages 3 facing between adjacent supply elements 1 directly communicate with each other. .

The liquid supply body A of FIG. 31 has twelve supply elements 1 by selecting the aspect shown in FIG.
Are connected to each other in the shape of a square ring as adjacent connecting portions 2 of the ribs 1b, and the guide passages 3 facing each other between the adjacent supply elements 1 have a square cross section and communicate with each other. In addition, the cross-section structure structure has a square space 5 in the central portion surrounded by the supply elements 1.

The liquid supply body A shown in FIG. 32 has sixteen supply elements 1 when the embodiment shown in FIG. 37 XII is selected as the cross-sectional structure of the supply element 1.
Connect a part of the outer ring part 1c adjacent to each other in an annular shape to the connecting part 2
And the supply elements 1
Independently, each of the guide passages 3 has an independent guide passage 4 between the outer ring portions 1c of the adjacent supply elements 1 and a circular space in the central portion surrounded by the supply elements 1. The cross-section has a structure where 5 is present.

In the liquid supply body A of FIG. 33, the aspect shown in FIG. 37 is selected as the cross-sectional structure of the supply element 1, and three supply elements 1 are adjacent to each other from the top, bottom, left and right of the center supply element 1. The outer ring portions 1c of the adjacent feed elements 1 are independent of each other by the connecting portions 2 that connect the outer ring portions 1c and have a substantially cross-shaped cross section, and the guide passages 3 of the respective feed elements 1 are independent of each other. It has a cross-sectional structure structure in which there is also an independent guide passage 4 between them.

In the liquid supply body A of FIG. 34, the mode shown in FIG. 37 XIII is selected as the cross-sectional structure of the supply element 1, and the connection portion 2 connecting the outer ring portions 1c where the nine supply elements 1 are adjacent to each other is selected. And the guide passages 3 in each of the supply elements 1 are independent from each other, and the independent guide passages 4 are also provided between the outer ring portions 1c of the adjacent supply elements 1. However, it has a cross-sectional structure structure.

The liquid supply body A of FIG. 35 has the form shown in FIG. 37 as the cross-sectional structure of the central supply element 1 and the form shown in FIG. 37 as the cross-sectional structure of the supply elements 1 connected to the left and right thereof. Each of them is selected so that two feeding elements 1 are provided diagonally to the left and right of the central feeding element 1, and the rib 1b tip portion and outer ring portion 1c are adjacent to each other.
Of the ribs 1b, which are adjacent to each other, are connected to each other as a connecting portion 2, and the cross-section has a cross-section shade shape, and the guiding passage 3 in the central feeding element 1 is independent, and the central feeding element 1 is provided.
The cross-sectional textured structure is such that the guide passages 3 facing each other extending from each other communicate with each other.

Further, a cross-sectional structure structure composed of supply elements 1 having different diameters like the liquid supply body A illustrated in FIG. 36 is also optional.

The following table shows application examples of the liquid supply body A having the cross-sectional structure structure illustrated in FIGS.

The liquid supply body A having the cross-sectional structure structure shown in FIGS. 31 and 32 is required to have a high bending strength by inserting a reinforcing core body (not shown) into the space 5, for example. Useful for applications. Further, the liquid supply body A shown in FIG.
For example, a fibrous core body (not shown) having a low spatial density is incorporated in the space 5 in addition to directly using the entire cross-sectional structure structure or each end portion, and a higher porosity is required. It is useful for various uses.

Further, in the case where the liquid supply body A has the cross-sectional structure structure in which the embodiment illustrated in FIGS. 37 to 37 is selected as the supply element 1, the liquid supply body A can also induce liquid in the outer peripheral surface portion of the supply body, and is useful for such applications. Is.

Extrusion molding of the liquid supply body A is known, for example, in Japanese Patent Publication
The die of the manufacturing apparatus disclosed in Japanese Patent Publication No. 56-17240 has the same basic design concept as that of the die, and the extrusion is stretch-molded by adjusting the cross-sectional structure structure to the required cross-sectional structure, or by extruding from each independent hole in the die. , Either by stretch forming as the required cross-sectional structure structure due to the self-adhesion phenomenon due to the dispersive action of each filament immediately after the extrusion, or by using both design concepts together, for example, for each supply element, the former design philosophy, for the connecting part For example, is it extruded by a die incorporating the latter design concept and stretch-formed.

(Effects of the Invention) Therefore, according to the present invention, there are the following advantages.

Connection strength between each supply element Each supply element has high strength by connecting to the same body through the connection part by melt self-adhesion at the time of molding, sufficiently resistant to pressure and expansion of liquid during polishing and writing, and required The cross-sectional tissue structure of is firmly maintained.

Cross-sectional structure structure Not only the arrangement relationship of supply elements and the guide passages in each supply element that have the same cross-sectional structure structure in the same body, but also the connection passages between the supply elements or independent guide passages or connection parts By the organizational structure managed as, the stable liquid induction ability as designed,
There is no limitation on the type of liquid to induce.

Degree of freedom of cross-sectional shape The arrangement of supply elements is the same, the number of constituents is free, and the desired cross-sectional structure structure suitable for the application can be set freely.

Freedom of diameter Since the shape is the same and there is no limitation on the cross-sectional shape, the diameter can be any size according to the application, and there is no diameter limitation.

Liquid induction range in cross section The whole cross section has liquid induction ability, and the diameter becomes the writing line width as it is when writing.

[Brief description of drawings]

1 to 36 are transverse sectional views showing respective embodiments of the liquid supply body of the present invention. 37I to XV are cross-sectional views illustrating various aspects of the supply element. In the figure, 1 is a supply element 2 is a connecting portion 3 is a guide passage

Claims (1)

[Claims] 1. A plurality of supply elements each having a guide passage by a capillary force in the axial direction are connected to adjacent supply elements by one or more connecting sections formed by melt self-adhesion during molding, and have the same cross-sectional structure. A liquid supply body formed by extrusion molding into an integral structure.