JPH0244874Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an applicator in which a pen tip having a capillary action is attached to the tip of the barrel, and more specifically, the present invention relates to an applicator that has a pen tip with capillary action attached to the tip of the barrel. This applicator is capable of supplying an appropriate amount to a pen tip with a simple knob operation.

(Conventional technology and its problems) Conventionally, this type of applicator was
As disclosed in Japanese Patent No. 10925, by rotating a rear shaft that is rotatable with the front shaft, a screw rod that rotates and slides at the same time as the rear shaft is advanced along the screw hole of the front shaft, It is known that a piston at the tip of the screw rod supplies liquid in the front shaft to the pen tip at the tip of the front shaft. However, while this applicator has the advantage of being able to reliably supply the liquid in the front shaft to the pen tip with the moving piston, it is necessary to move the rear shaft against the front shaft in order to supply liquid to the pen tip during use. Since it has to be rotated, it is troublesome to hold the barrel differently or operate it with both hands, and it is also difficult to adjust the amount of liquid supplied to the pen tip by rotating the rear barrel, making it inconvenient to use. It was hot.

(Purpose of the invention) This invention was devised in view of the above-mentioned problems, and it is possible to supply an appropriate amount of the applied material stored in the barrel to the pen tip by simply pressing the notch provided in the barrel with a fingertip. It is an object of the present invention to provide such an applicator.

(Structure of the invention) The present invention is an applicator in which a pen tip 1 having a capillary action is attached to the tip of a barrel 5, and a piston 7 slidably disposed in a storage chamber 6 of the barrel 5. A press rod 8 is provided in the press rod 8, and two engaging members 9 and 10 are loosely inserted into the press rod 8, so that a part of one of the engaging members 9 is brought into contact with the inner stage 5a of the shaft cylinder 5. In addition, a part of the other engaging member 10 is attached to the shaft cylinder 5.
The protrusion 13a of the notch 13 is slidably arranged on the
The engagement members 9 and 10 are elastically biased rearward so as to come into contact with each other, and the rotational displacement force generated by this bias causes the engaging members 9 and 10 to press into engagement with the press rod 8. The gist is the applicator.

(Embodiments) The present invention will be described in detail below based on embodiments shown in the accompanying drawings.

In FIG. 1, reference numeral 1 is a pen nib having a capillary action such as a fiber convergence body or a porous body, and a pipe 3 fixed to a pipe holder 2 is inserted into the pen nib 1. The base of the pen nib 1 is held in a fixed tube 4, and the fixed tube 4 is attached to the tip of a barrel 5 by screwing or the like. It goes without saying that the pen tip 1 may be attached to the shaft barrel 5 using conventionally known attachment means other than those described above. Reference numeral 6 denotes a storage chamber that communicates with the pipe 3 and stores a coating material such as a liquid or powder, and a piston 7 that can press the coating material in the storage chamber 6 slides into the storage chamber 6. They are freely placed. Reference numeral 8 denotes a push rod having a circular cross section and connected to the piston 7 mentioned above. Reference numerals 9 and 10 are engagement members having holes 9a and 10a with a diameter slightly larger than the outer diameter of the push rod 8, and are loosely inserted into the push rod 8, and springs 11 and 10, respectively.
12 and is biased backwards. The engagement member 9 is biased backward by a spring 11 and its upper end is attached to the shaft cylinder 5.
The engaging member 10 is biased backward by a spring 12, and the end face of the hole 9a is press-fitted with the push rod 8. In this state, its lower end comes into contact with the protrusion 13a of the notch 13 that is slidably disposed at the rear of the shaft cylinder 5, and receives rotational displacement force and tilts rearward to open the hole 10a.
The end face of the press rod 8 is press-fitted. In this example, an engagement member having a hole slightly larger in diameter than the outer diameter of the push rod is loosely inserted into a push rod having a circular cross section, but a U-shaped push rod having a rectangular cross section is shown. An engaging member having a notch may be loosely inserted, that is, various modifications are possible as long as the engaging member is pressed into engagement.

(Function) Hereinafter, the function will be explained with reference to FIGS. 2 and 3 based on the above-mentioned embodiment.

When supplying the coating material to the pen tip 1, press the knob 1.
Press 3 forward. When you press the knob 13,
The engaging member 10 that comes into contact with the protruding portion 13a of the notch 13 tilts further rearward and receives a further rotational displacement force that causes the end face of the hole 10a to bite into the pusher rod 8, and is firmly pressed and engaged. Therefore, when the notch 13 is pressed, the press rod 8 is also moved forward by the same amount. Push rod 8
When moving forward, the front engaging member 9 is also in a state in which the end face of its hole 9a is pressed into engagement with the press rod 8, but in the direction in which the press rod 8 moves forward, the engaging member 9 rather
Since the posture of the press rod 8 will be corrected, the pressing engagement force there will be reduced and the forward movement of the press rod 8 will not be hindered, so the press rod 8 can pass through the hole 9a and the press rod 8 can pass through the hole 9a. A piston 7 connected to a rod 8 can supply the coating material in the storage chamber 6 to the nib 1 (see FIG. 2).

When the push rod 8 is stopped, the front engaging member 9 tilts forward again and presses the end surface of the hole 9a against the push rod 8 to engage it. When the pressure is released, the notch 13 is pushed back together with the engaging member 10 by the spring 12 which urges the engaging member 10 rearward, but the push rod 8 remains in the forward position due to the pressure engagement force of the engaging member 9. It will stop. In addition, at this time, the engaging member 1
0 slides with the end surface of the hole 10a pressed against the push rod 8, but in the direction in which the engaging member 10 retreats, the pressure engagement force is reduced, which prevents the push rod 8 from stopping. Never.

(Effect of the invention) In the applicator of the present invention, the pen tip 1 having a capillary action is attached to the tip of the barrel 5, and the applicator is slidably arranged in the storage chamber 6 of the barrel 5. A push rod 8 is provided on the piston 7, and
The two engaging members 9 and 10 for this press rod 8 are
A protrusion of a notch 13 is arranged such that a part of one engaging member 9 is brought into contact with the inner stage 5a of the shaft cylinder 5, and a part of the other engaging member 10 is slidably arranged on the shaft cylinder 5. The engaging members 9 and 10 are elastically biased rearward so as to come into contact with the portion 13a, and the rotational displacement force generated by this bias causes the engaging members 9 and 10 to be pressed into engagement with the press rod 8. The piston moves forward by simply pressing the notch on the cylinder with your fingertip.
Moreover, the piston can be stopped at the forward position, and an appropriate amount of the coating material stored in the barrel can be reliably supplied to the pen tip.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal cross-sectional view, and FIGS. 2 and 3 are action explanatory views. 1... Pen tip, 5... Barrel, 5a... Inner stage, 6
...storage chamber, 7...piston, 8...push rod, 9,
10... Engaging member, 11, 12... Resilient member, 1
3...Notch, 13a...Protrusion.

Claims (1)

[Scope of utility model registration request] In an applicator in which a pen tip 1 having a capillary action is attached to the tip of a barrel 5, a push rod 8 is attached to a piston 7 slidably disposed in a storage chamber 6 of the barrel 5.
is provided, and two engaging members 9 and 10 are loosely inserted into this press rod 8, so that a part of one engaging member 9 is brought into contact with the inner stage 5a of the shaft cylinder 5, A portion of the other engaging member 10 is elastically biased rearward so as to come into contact with the protrusion 13a of the notch 13 that is slidably disposed on the shaft cylinder 5, and the rotational displacement force generated by this bias is used to An applicator characterized in that the engaging members 9 and 10 are pressed into engagement with the press rod 8.