JPH0117423B2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention provides a sliding piston in a coating material storage chamber, and moves the piston forward to supply coating materials such as cosmetic liquid and ink to the pen tip. This relates to an applicator.

(Prior art) As previously disclosed in Japanese Utility Model Publication No. 10925/1983,
By rotating the rear shaft, which is rotatable with the front shaft, the screw rod is advanced along the screw hole of the front shaft, and the piston at the tip of the screw rod transfers the coating material inside the front shaft to the tip of the shaft cylinder. Applicators adapted to be applied to the nib of a pen are known.

However, with this structure, during use, the rear shaft must be rotated relative to the front shaft in order to supply the coating material to the pen tip, which is cumbersome to operate, and also reduces the amount of coating material supplied to the pen tip. It was difficult to make adjustments by rotating the rear shaft, making it inconvenient to use.

(Purpose) The purpose of the present invention is to make it possible to reliably supply coating materials such as cosmetic liquid and ink inside the barrel to the pen tip with an extremely simple operation of just pressing the notch provided at the rear of the rear barrel. There is.

(Embodiment) FIGS. 1 to 8 show a first embodiment of the present invention. 1 is a front shaft with a pen nib 2 having a capillary action such as a synthetic fiber bundle, natural fiber bundle, urethane, sponge, etc., fitted and fixed at the tip with a holder 3, and the interior is used as a storage chamber 4 for application materials such as cosmetic liquid, ink, etc. There is.
A piston 5 is slidably provided in the coating material storage chamber 4, and a screw rod 6 is connected to the rear thereof. The screw rod 6 has a flat portion 6a formed on one side in the axial direction.
7 has a collar 7a inside the middle, a front hole 7b and a rear hole 7.
c Form a screw on each inner surface and connect the front hole 7 with a connector.
A nut 8 is fitted to b, and the rear end of the front shaft 1 is screwed and fixed, and at the same time, the nut 8 is pressed and fixed to the collar 7a. 9 is a rear shaft whose tip is screwed and fixed into the rear hole 7c of the connector 7. A plurality of vertical grooves 9a are formed at equal intervals on the inner surface of the middle portion of the rear shaft 9, and a plurality of protrusions are formed on the outer periphery of the tip of the notch 10 fitted into the rear shaft 9 at the same pitch as the vertical grooves 9a. The strip 10a is the vertical groove 9
It is designed so that it can be inserted into the hole and slid up and down. The lower end of each protrusion 10a is a slope 1 inclined in one direction.
It has become 0a'. Reference numeral 11 denotes a rotor as shown in Fig. 2, and a protrusion 11a is provided on the outer periphery of the upper part of the cylinder, similar to the protrusion 10a.
is formed, and a sixth groove is formed on the outer side of the lower end of each vertical groove 9a.
A recess 12 consisting of a unidirectional slope 12a and a vertical surface 12a as shown in the figure is connected to the vertical groove 9a in an annular manner at the same pitch, and the slope 11a' at the upper end of the protrusion 11a is connected to the recess 12a.
The rotor 11 is moved by a spring 13 which is in contact with the slope 12a of
is always urged upward and in pressure contact with the vertical surface 12b. And the upper end slope 11 of the protrusion 11a of the rotor 11
a' projects into the vertical groove 9a, and the protrusion 10 of the notch 10
The slope 10a' at the lower end of a contacts, and a hole 11b having the same shape as the screw rod 6 is formed below the rotor 11, into which the screw rod 6 is inserted so that it can freely slide and rotate together. .

Next, the effect of the configuration of the first embodiment will be explained. When the notch 10 is pressed, the tip slope 10a' of the protrusion 10a changes to the upper end slope 11 of the protrusion 11a of the rotor 11.
Press a' downward against the elasticity of the spring 13. When the upper end of the slope 11a' passes the lower end of the vertical surface 12b, the rotor 11 is always urged in the circumferential direction by the force applied to the slope 11a', so it automatically moves to the slope 12a of the next recess 12 as shown by the dotted line in Figure 6. get into the target. Next, when the force pressing the notch 10 is removed, the spring 1
The rotor 11 is pushed upward by the elastic force of 3, and the protrusion 11a
The upper end slope 11a' rotates along the slope 12a of the recess 12 and rises, rotates by one pitch, and moves up to the vertical surface 12.
It comes into contact with b and stops. In addition, Knock Cap 14
An auxiliary spring 15 may be provided to smooth the return. The screw rod 6 rotates together with the rotation of the rotor 11, and while rotating due to the screw engagement with the nut 8, it moves forward by a certain amount according to the amount of rotation, and the piston 5
is advanced by a certain amount, so that a certain amount of the coating material in the coating material storage chamber 4 is supplied to the pen tip 2.

By repeating the pressing of the notch 10, the screw rod 6 gradually moves forward until it becomes as shown in FIGS. 7 and 8. At this time, remove the front axle 1 from the connector 7, pull out the screw rod 6 together with the nut 8, turn it over and insert it again into the rear axle 9, and screw the replacement front axle 1 into the connector 7. You can easily return the diagram to the state it was in before use.

9 and 10 show a second embodiment of the present invention.

Four vertical grooves 21a are formed on the inner surface of the rotor 21 similar to the rotor 11 of the first embodiment, and four vertical protrusions on the outer periphery of the rotating body 22 are slidably fitted into the vertical grooves 21a. , a spring 23 between the rotor 21 and the rotating body 22
is interposed, a rotating body 22 is brought into contact with the collar 7a, a non-circular hole is formed in the rotating body 22, and a threaded rod 6 of the same shape is inserted into the rotating body 22.

Therefore, when the knob 10 is pressed, the rotor 21 slides forward as in the first embodiment, and then rotates 1 in the circumferential direction.
It slides back to its original position while rotating in a pinch. Only rotation is transmitted to the rotating body 22, which rotates a certain amount at a fixed position, and the screw rod 6 rotates together.

In the case of the second embodiment, since the rotary body 22 only rotates at a fixed position, the rotary body 22 and the screw rod 6 are rotated integrally until the screw rod 6 advances to the leading edge and the coating material runs out. When you run out of wood, use the screw rod 6
Since the rear end can be made to come out of the rotating body 22, even if the knob is pressed when the coating material runs out, the rotor will idle, thereby preventing damage due to excessive force acting on the knob rotation mechanism.

Other structural functions are the same as in the first embodiment.

11 to 15 show a third embodiment of the present invention. When the notch 30 is pressed, the lower end slope 30a' of the protrusion 30a of the notch 30 presses the upper end slope 31a' of the protrusion 31a of the rotor 31, pressing the rotor 31 in the circumferential direction. Reference numeral 32 denotes a cam ring in which recesses 32a are formed at a predetermined pitch in the circumferential direction, and is slid upward in the axial direction by the pressing force of the rotor 31 in the circumferential direction against the elasticity of the spring 33 as shown in FIG. The spring 3 rotates one pitch and enters the next recess 32a, and when the pressing force of the notch 30 is removed, the spring 3
3, the cam ring 32 slides downward and returns to its original position to lock the rotor 31, as shown in FIG.

In the third embodiment, similarly to the second embodiment, the rotor idles when the coating material is exhausted. Further, since the rotor is directly rotated by the pressing force of the notch, it is possible to reliably press and slide even if the resistance of the piston becomes large.

Other configurations and operations are similar to those of the first embodiment.

In the present invention, the rotation angle of the rotor is not always constant, but is changed to vary the forward distance of the screw rod, thereby changing the amount of coating material supplied to the pen tip. ,
In addition, the rotating mechanism can be modified in various ways, such as by using a combination of a well-known cam and ratchet, and powders can be used in addition to liquids such as decorative boards and inks as coating materials. The shaft, connector, and rear shaft may be integrally constructed as appropriate.

(Effects) According to the present invention, the rear end of the front shaft and the tip of the rear shaft are integrated via a connector, the pen tip is attached to the tip of the front shaft, and the piston is slidably provided in the application material storage chamber in the front shaft. A threaded rod connected to the piston is screwed into a nut fixed to the rear end of the front shaft, and the threaded rod is connected to a rotor of a notch rotation mechanism that rotates in the circumferential direction each time a notch provided at the rear of the rear shaft is pressed. , are engaged so as to be able to slide freely in the axial direction and rotate together, and each time the knob is pressed, the piston is advanced to supply the coating material to the pen tip. It is convenient because it can reliably supply coating materials such as lotion and ink to the pen tip with a simple operation.

[Brief explanation of drawings]

FIG. 1 is a cutaway front view of essential parts of a first embodiment of the present invention;
2 is a perspective view of the rotor in FIG. 1, FIG. 3 is a cross-sectional view of the rear shaft at the a-a position in FIG. 1, FIG. 4 is a side view of the notch, and FIG. b side sectional view, FIG. 6 is an explanatory diagram of the operation of the knob rotation mechanism, FIG. 7 is a front view showing the screw rod and nut in FIG. 1, and FIG. 8 is a front view showing the screw rod and nut when the ink runs out. , FIG. 9 is a front sectional view of the second embodiment of the present invention, and FIG.
Fig. 11 is a front sectional view of the third embodiment of the present invention, Fig. 12 is a sectional view taken along dd of Fig. 11, and Figs. 13 to 15 are Fig. 11. FIG. 2 is an explanatory diagram of the operation of the knob rotation mechanism of FIG. 1... Front shaft, 2... Pen tip, 4... Application material storage chamber, 5... Piston, 6... Screw rod, 8... Nut, 9... Rear shaft, 10, 30... Notch, 11 ，
21, 31...rotor, 22...rotating body, 13,
23, 33...Spring, 32...Cam ring.

Claims (1)

[Claims] 1 The rear end of the front shaft 1 and the tip of the rear shaft 9 are integrated via the connector 7, and the pen tip 2 is attached to the front end of the front shaft 1, so that the piston 5 can freely slide into the coating material storage chamber 4 in the front shaft 1. a threaded rod 6 provided and connected to the piston 5;
A rotor 11 of a notch rotation mechanism is screwed into a nut 8 fixed to the rear end of the front shaft 1, and the screw rod 6 rotates in the circumferential direction each time the notches 10 and 30 provided at the rear of the rear shaft 9 are pressed. , 21 and 31 so as to be able to slide freely in the axial direction and rotate together, and each time the notches 10 and 30 are pressed, the piston 5 is advanced to supply the coating material to the pen tip 2. Applicator.