JPH0114821B2 - - Google Patents

Description

Detailed Description of the Invention (Technical Field) The present invention provides a coating method in which a piston is slidably provided in a coating material storage chamber, and the piston is moved forward to supply coating materials such as cosmetic liquid or ink to a pen tip. It's about the ingredients.

(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. 7 is a connector which has a collar 7a inside the middle and has screws formed on the inner surfaces of the front hole 7b and the rear hole 7c, and the front shaft 1 is screwed and fixed in the front hole 7b, and the nut 8 is rotated in the rear hole 7c. The rear shaft 9, which is freely inserted and inserted, is screwed and fixed. Tsuba 7a
A rotation preventing protrusion 7d is formed on the inner surface, and the screw rod 6
It fits into the vertical groove 6a on the outer surface. A plurality of vertical grooves 9a are formed at equal intervals on the inner surface of the middle part of the rear shaft 9, and a plurality of protrusions 10a formed on the outer periphery of the tip of the notch 10 inserted into the rear shaft 9 are fitted into the vertical grooves 9a. It is designed to be able to slide up and down. A chevron-shaped surface 10a' is formed at the lower end of each protrusion 10a. Reference numeral 11 denotes a rotor as shown in FIG. 2, and a protrusion 11a corresponding to the protrusion 10a is formed on the upper outer periphery, and the protrusion 8a on the outer periphery of the nut 8 is slidable between the four protrusions 11b on the outer periphery. The spring 1 is inserted into the center hole 11c, and the threaded rod 6 is inserted into the center hole 11c, and the spring 1 is inserted into the outer peripheral protrusion 11b.
2, the rotor 11 is always urged upward. A recess 13 consisting of a one-way slope 13a and a vertical surface 13b is provided on the inner surface of the rear shaft 9 at the lower end of the longitudinal groove 9a.
is annularly connected to the longitudinal groove 9a at the same pitch, and the upper end slope 11a' of the protrusion 11a is in pressure contact with the longitudinal groove 9a. The upper end slope 11a' of the rotor 11a protrudes into the vertical groove 9a, and the chevron-shaped surface 10 at the lower end of the protrusion 10a of the notch 10
a' is in contact. A knob cap 14 is fixed to the upper end of the knob 10 and is constantly urged upward by a spring 15 interposed in the upper part of the rear shaft.

Next, the effect will be explained. Notsuku Cap 1
When 4 is pressed, the notch 10 is pressed and the protrusion 10a
The lower end chevron-shaped surface 10a' presses the upper end slope 11a' of the protrusion 11a of the rotor 11 downward against the elasticity of the spring 12. When the slope 11a' passes the lower end of the vertical surface 13b, the rotor 11 enters the slope 13a of the next recess 13, as shown in FIG. 9, since the rotor 11 is always urged in the circumferential direction by the force applied to the slope 11a'. Next, when the force pressing the notch 10 is removed, the rotor 11 is pushed upward by the elasticity of the spring 12, and the upper end slope 11a' of the protrusion 11a moves upward while rotating along the slope 13a of the recess 13. It rotates in a pitch and comes into contact with the vertical surface 13b and stops. At this time, the protrusions 11b on the outer periphery of the rotor 11 slide up and down along the protrusions 8a of the nut 8, so only the rotation of the rotor 11 is transmitted to the nut 8, and the rotation of the nut 8 causes the screw rod 6 to remain constant. Since the piston 5 is moved forward by a certain amount, a certain amount of the coating material in the coating material storage chamber 4 is supplied to the pen tip 2.

When the knock cap 14 is repeatedly pressed, the screw rod 6 gradually moves forward, and the screw rod 6 is designed to come out of the nut 8 when the application material runs out. Therefore, even if the knob cap 14 is pressed after the coating material is used up, the rotor 11 will idle, and no unreasonable force will be applied to the knob rotation mechanism.

In addition, in the present invention, the rotation angle of the rotor is not always constant, but is changed by changing the rotation angle of the nut, thereby making the forward distance of the screw rod variable, thereby reducing the flow of liquid to the pen tip. Various modifications are possible, such as changing the supply amount or using a combination of a well-known cam and ratchet as the rotation mechanism.In addition to liquids such as lotion and ink, powders can be used as the application material. It is also possible to use the front shaft, connector, and rear shaft as one body.

(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 screw rod connected to the piston is attached so as to be non-rotatable but slidable in the axial direction, and the screw rod is screwed into a nut arranged so as to be able to rotate at a predetermined position, and a notch is provided at the rear of the rear shaft. A rotor of a notch rotation mechanism that rotates in the circumferential direction every time the nut is pressed is engaged with the nut so that the rotor can be slidably rotated together with the nut,
Each time the knob is pressed, the piston moves forward to supply the coating material to the pen tip, so the application material such as lotion, ink, etc. is reliably supplied to the pen tip with an extremely simple operation of just pressing the knob. can.

[Brief explanation of drawings]

Fig. 1 is a cutaway front view of essential parts of an embodiment of the present invention, Fig. 2 is a perspective view of the rotor and nut shown in Fig. 1, Fig. 3 is a bottom view of the notch shown in Fig. 1, and Fig. 4 is a view shown in Fig. A-
5 is a top view of the rotor in FIG. 1, FIG. 6 is a top view of the nut in FIG. 1, FIG. 7 is a sectional view on the B-B side in FIG. 10 to 10 are explanatory views of the operation of the knob rotation mechanism shown in FIG. 1. 1... Front shaft, 2... Pen tip, 4... Application material storage chamber, 5... Piston, 6... Screw rod, 8... Nut, 9... Rear shaft, 10... Notch, 11... rotor.

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 is provided and is connected to the piston 5.
mounted so that it cannot rotate but can slide in the axial direction,
A rotor of a notch rotation mechanism which is screwed into a nut 8 disposed so that the threaded rod 6 can be rotated at a predetermined position, and which rotates in the circumferential direction each time a notch 10 provided at the rear of the rear shaft 9 is pressed. 11 is slidably engaged with the nut 8 so as to be able to rotate together with the nut 8, and the piston 5 is advanced each time the notch 10 is pressed to supply the coating material to the pen tip 2.