JPH07214968A - Marking pen - Google Patents

Abstract

PURPOSE:To dispense with the attachment and detachment of a cap and to stabilize marking quality by improving the structure of a pen point. CONSTITUTION:A marking pen consists of a container-shaped main body, the rubber roller 2 held to the opening 11 of an ink passage 10 in a state possible to go in and out and tumble, a valve disc 3 opening and closing the ink passage 10, the energizing member 4 energizing the valve disc 3 in the direction closing the ink passage 10 and the porous members 5 held between the valve disc 3 and the rubber roller 2 and impregnated with ink. At the time of non-use, the valve disc 3 closes the ink passage 10 and the rubber roller closes the opening 11 of the ink passage 10. At the time of use, the movement of the rubber roller 2 generated when the rubber roller 2 is pressed to an article 7 to be coated is transmitted to the valve disc 3 through the porous member 5 to move the valve disc 3 to open the ink passage 10 and the ink in the porous member 5 is transferred to the article 7 to be coated through the rubber roller 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marking pen for drawing a mark or the like on the surface of a hose or the like.

[0002]

2. Description of the Related Art In a hose, for example, a line extending in the longitudinal direction or the circumferential direction is drawn on the surface as a mark for the insertion position and insertion direction of a mouthpiece. Conventionally, a commercially available paint marker is used for marking this line, and the marking is performed manually by an operator or using a robot.

This conventional paint marker is generally composed of a cylindrical main body having ink enclosed therein and having an opening at its tip, and a felt-shaped pen tip which is held in the opening and protrudes to the outside. The ink penetrating and bleeding out is transferred to the mating member by bringing the pen tip into contact with the mating member. Since it is necessary to move to the next step immediately after marking, an oil-based quick-drying ink is used as the paint marker ink.

[0004]

However, since the conventional paint marker has a felt-shaped pen tip, the pen tip gradually frays when used for a long time, and the marking width becomes wide or unclear, resulting in marking quality. There is a problem that it decreases. Further, since the ink is quick-drying, the ink attached to the pen tip may be dried to make marking difficult. When the pen tip is not in use, drying of the pen tip can be avoided, but the number of man-hours for attaching and detaching the cap is extremely large in the flow work at the production site, resulting in a decrease in productivity.

The present invention has been made in view of the above circumstances, and an object thereof is to improve the structure of the pen tip to eliminate the need for attaching and detaching the cap and to stabilize the marking quality.

[0006]

The marking pen of the present invention for solving the above-mentioned problems has a container-like main body having an ink flow path opening at the tip and in which ink is stored, and a marking pen appearing and retracting at the opening of the ink flow path. Rubber roller held rotatably and rotatably, a valve body movably held in the main body to open and close the ink flow path, and a biasing force to urge the valve body held in the main body in the direction to close the ink flow path It is characterized by comprising a member and a porous member which is movably held in the ink flow path between the valve body and the rubber roller and impregnated with the ink and held.

In this marking pen, the movement in the direction of retracting into the opening when the rubber roller is pressed against the object to be coated is transmitted to the valve body through the porous member so that the valve body resists the biasing force of the biasing member. It is preferable that the ink flow path is opened by the movement and the ink impregnated in the porous member is transferred to the object to be coated through the rubber roller.

[0008]

In the marking pen of the present invention, the valve body closes the ink flow path by the urging force of the urging member when not in use. The tip of the valve element contacts the porous member and presses the rubber roller through the porous member in the direction of exiting from the opening. When the rubber roller is pressed against the surface of the object to be coated during use, the rubber roller moves in the direction in which it is retracted into the opening of the ink flow path against the urging force of the urging member due to the pressing force.
The valve body is pressed and moved via the porous member. This opens the ink flow path, and the ink in the main body flows from the ink flow path and impregnates the porous member.

Since the tip of the porous member is in contact with the rubber roller, the ink is continuously supplied from the porous member to the surface of the rubber roller, and the ink is transferred to the surface of the object to be coated by the rolling of the rubber roller. Since the rubber roller constitutes the pen tip in this way, it can flexibly follow the shape of the coating object due to elastic deformation and does not cause fracturing, so that marking can be performed with stable quality.

When the marking is stopped and the rubber roller is separated from the surface of the object to be coated, the valve body closes the ink flow path by the urging force of the urging member, and the supply of ink to the porous member is stopped. At the time when the rubber roller is separated from the object to be coated, the ink on the surface of the rubber roller, which was in contact with the object to be coated, has been transferred to the object to be coated, and the ink is not attached to the surface of the rubber roller. Most of the porous member is in the ink flow path, and the tip end surface is in contact with the rubber roller. Therefore, the ink is prevented from being dried, and marking can be smoothly performed in the next use.

[0011]

EXAMPLES The present invention will be specifically described below with reference to examples. Figure 1
3 shows a marking pen according to an embodiment of the present invention. This marking pen includes a substantially cylindrical body 1 and a rubber roller 2
A valve body 3, a coil spring 4 as a biasing member, and a porous member 5.

An ink channel 10 having an opening 11 at the tip is formed at the tip of the main body 1. A pair of elongated holes 12, 12 facing each other is formed in the vicinity of the opening 11, and a partition plate 13 having a large number of through holes 14 is fixed in the internal space behind the ink flow path 10. This body 1
The ink 6 containing an organic solvent (for example, methyl ethyl ketone) as a solvent is enclosed in the inner space of, and is configured so as to freely flow through the through holes 14.

The rubber roller 2 is made of silicone rubber, and is rotatably held in the ink flow path 10 by the shaft 20 engaging with the elongated holes 12, 12. The shaft 20 is held in the opening 11 so that the shaft 20 can move in and out by moving in the elongated hole 12. The valve element 3 has a substantially T-shaped cross section including a head portion 30 and a leg portion 31, and the leg portion 31 is engaged so as to slide in the ink flow path 10. Also, the head 31 is the main body 1
By engaging with the internal step portion 15, the penetration depth of the leg portion 31 into the ink flow path 10 is regulated. A substantially T-shaped communication hole 32 is formed in the leg 31 and opens in three directions to communicate with each other.

A coil spring 4 is interposed between the surface of the head portion 3 of the valve body 3 and the partition plate 13 to urge the valve body 3 in a direction of entering the ink flow path 10. A porous member 5 made of felt is interposed between the tip of the leg portion 31 and the rubber roller 2 in the ink flow path 10 and is in contact with the tip of the leg portion 31 and the peripheral surface of the rubber roller 2.

In the marking pen of the present invention constructed as described above, when the rubber roller 2 is pressed against the hose 7 to be coated with a force larger than the biasing force of the coil spring 4, the pressing force is perforated by the rubber roller 2. The rubber roller 2 is transmitted to the valve body 3 through the quality member 5, the rubber roller 2 is retracted into the opening 11, and the valve body 3 moves in the direction of retracting from the ink flow path 10 to be in the state shown in FIG.

In this state, two of the communication holes 32 formed in the leg portion 31 are located outside the ink flow path 10, and the remaining one communication hole 32 is located inside the ink flow path 10. Therefore, the ink 6 in the main body 1 flows into the ink flow path 10 through the communication hole 32 and is impregnated in the porous member 5. The ink with which the porous member 5 is impregnated is transferred to the rubber roller 2, and is further transferred to the hose 7 as the rubber roller 2 rolls.

When the rubber roller 2 is separated from the hose 7 after marking, the valve body 3 is pressed by the urging force of the coil spring 4, the leg portion 31 enters the ink flow path 10, and the lower surface of the head portion 30 contacts the step portion 15. Contact. As a result, the two openings of the communication hole 31 are closed by the wall surface of the ink flow path 10, and the ink 6 in the main body 1 is restricted from flowing into the ink flow path 10. Then, the porous member 5 is pressed and moved by the entry of the leg portion 31, and the rubber roller 2 projects from the opening 11 to be in the state of FIGS. 2 and 3.

In the state shown in FIGS. 2 and 3, the valve body 3 restricts the inflow of the ink 6 into the ink flow path 10 and the rubber roller 2 closes the opening 11, so that it is porous. Volatilization of the solvent from the ink with which the member 5 is impregnated is regulated to prevent the ink from drying. Therefore, it is not necessary to cover with a cap or the like. It should be noted that even if the ink that slightly adheres to the peripheral surface of the rubber roller 2 and is exposed is dried, it will be dissolved in the solvent of the impregnated ink by sliding contact with the porous member 5 during the next use. There is no defect.

[0019]

According to the marking pen of the present invention, since the pen tip is a rubber roller and ink is transferred by rolling, the marking pen is less worn and deformed than the conventional felt, and marking can be performed with stable quality. it can. In addition, there is no problem that marking becomes difficult due to the pen tip drying as in the past, and it is not necessary to attach and detach the cap,
The number of marking operations can be reduced.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a marking pen according to an embodiment of the present invention when in use.

FIG. 2 is a sectional view of a main part of a marking pen according to an embodiment of the present invention.

FIG. 3 is a side view of a marking pen according to an embodiment of the present invention.

[Explanation of symbols]

1: Main body 2: Rubber roller
3: Valve body 4: Coil spring (biasing member) 5: Porous body
6: Ink 7: Hose 10: Ink flow path
11: Opening 12: Long hole 13: Partition plate
14: Through hole

Claims (2)

[Claims] 1. A container-shaped main body having an ink flow path opening at the tip and storing ink therein, a rubber roller held so as to be retractable and rollable in the opening of the ink flow path, and inside the main body A valve body that is movably held in the main body and that opens and closes the ink flow path, a biasing member that is held in the main body and that biases the valve body in the direction of closing the ink flow path, and the valve body and the rubber roller. And a porous member that is movably held in an ink flow path therebetween and is impregnated and held with the ink, and a marking pen. 2. The movement of the rubber roller in the direction of being retracted into the opening when the rubber roller is pressed against the object to be coated is transmitted to the valve body through the porous member and resists the urging force of the urging member. The ink flow path is opened by the movement of the valve element, and the ink impregnated in the porous member is transferred to the object to be coated via the rubber roller. Marking pen.