JPS6330069B2 - - Google Patents

Description

Detailed Description of the Invention (Technical Field) The present invention includes a piston that is slidably provided in a coating material storage chamber in a barrel, and the piston is moved forward to apply cosmetic liquid,
The present invention relates to an applicator that supplies a coating material such as ink to a pen tip.

(Prior art) As previously disclosed in Japanese Utility Model Publication No. 50-10925,
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) An object of the present invention is to enable application materials such as cosmetic liquid and ink inside the barrel to be supplied to the pen tip each time a slider attached to the side of the barrel is advanced.

(Structure) In order to achieve the above object, the present invention provides a piston that is slidably provided in a coating material storage chamber within a barrel that communicates with the pen tip at the tip of the barrel, and a threaded rod that is connected to the piston that is connected to the pen tip within the barrel. A sliding ring that is rotatably arranged at a predetermined position, is screwed into a cylindrical cam with alternating and continuous vertical grooves and cam grooves on its surface, and moves integrally with a slider installed on the side of the shaft cylinder. It is characterized in that an engaging piece is fitted into a groove of the cylindrical cam, and the cylindrical cam is rotated in a circular direction each time the sliding ring moves forward.

Hereinafter, a detailed explanation will be given based on one embodiment of the present invention. 1 is a shaft cylinder into which a holder 3 having a capillary action pen nib 2 made of synthetic fiber bundle, natural fiber bundle, urethane, sponge, etc. is fitted and fixed at the tip;
The middle part is used as a storage chamber 4 for coating materials such as cosmetic liquid and ink. Reference numeral 5 denotes a piston that is slidably fitted into the coating material storage chamber 4, and a screw rod 6 is connected to the rear thereof, and a long groove 6a is formed in the axial direction of the outer circumference of the screw rod 6. Projection 7a of fixed rotation stopper ring 7
is fitted into the long groove 6a to prevent the screw rod 6 from rotating. 8 is a cylindrical cam that is screwed together with the threaded rod 6, and has a plurality of vertical grooves 8a on its surface and a vertical groove 8 adjacent to the front end of each vertical groove 8a.
A diagonal cam groove 8b is formed that communicates with the cylindrical cam 8.
The groove 8c at the front end corresponds to the groove 7 at the rear end of the rotation stopper ring 7.
It is in pressure contact with the hard ball 12 placed at b. Reference numeral 13 denotes a slider fitted from the outside into a vertical hole 1a on the side surface of the shaft cylinder 1, and an engaging piece 13a protruding from the inner surface thereof is integrated with a sliding ring 14 fitted into the outer periphery of the vertical groove 8a of the cylindrical cam 8. An engaging piece 14 a protruding from the inner surface of the sliding ring 14 is fitted into a vertical groove 8 a of the cylindrical cam 8 .

A spring 15 is stretched between the rotation stop ring 7 and the sliding ring 14.

Next, the effect will be explained. When the slider 13 is slid toward the tip against the elasticity of the spring 15, the sliding ring 14 moves forward as well, and the engaging piece 14a enters the cam groove 8b, so that the cylindrical cam 8 is rotated by the hard ball of the stopper ring 7. The screw rod 6 which is engaged with the cylindrical cam 8 is rotated in the circumferential direction against the pressure contact force with the cylindrical cam 8, and at the same time the piston 5 is moved forward by a certain amount to supply the coating material to the pen tip 2. . When the slider 13 is released, the elasticity of the spring 15 causes the slider 13 to return to its original position. At this time, the cylindrical cam 8 is pressed by the spring 11 so that the concave groove 8c at the front end fits into the rigid ball 12, and the engaging piece 14a is positioned so as to be able to reliably enter the next cam groove 8b. When this operation is repeated, the screw rod 6 gradually advances, and the piston 5 comes into contact with the front end of the coating material storage chamber 4 and stops.

(Effects) According to the present invention, a piston is slidably provided in the application material storage chamber in the barrel that communicates with the pen tip at the tip of the barrel, and a threaded rod connected to the piston is rotated to a predetermined position in the barrel. The engaging piece of the sliding ring is arranged to be freely movable and is threadedly engaged with a cylindrical cam having alternating and continuous longitudinal grooves and cam grooves on the surface, and moves integrally with the slider provided on the side of the shaft cylinder. The cylindrical cam fits into the groove of the cylindrical cam and rotates in a circular direction each time the sliding ring moves forward, so the cylindrical cam is inserted into the groove of the cylindrical cam and rotates in a circular direction every time the sliding ring moves forward. Coating materials such as lotion and ink inside the cylinder can be reliably supplied to the pen tip.

[Brief explanation of the drawing]

FIG. 1 is an upper half cutaway front view of an embodiment of the present invention;
2 is a sectional view taken along the line AA in FIG. 1, FIG. 3 is a sectional view taken along the line BB in FIG. 1, and FIG. 4 is an enlarged partial plan view of the ring and the cylindrical cam. 1... Barrel, 2... Pen tip, 4... Application material storage chamber, 5
... Piston, 6... Threaded rod, 7... Stop ring,
8...Cylindrical cam, 8a...Vertical groove, 8b...Cam groove, 1
1, 15...Spring, 13...Slider, 14
...Sliding ring, 14a...Engagement piece.

Claims (1)

[Claims] 1. A piston 5 is slidably provided in the coating material storage chamber 4 in the barrel 1 that communicates with the pen tip 2 at the tip of the barrel 1,
A threaded rod 6 connected to the piston 5 is rotatably disposed at a predetermined position within the shaft cylinder 1, and is screwed into a cylindrical cam 8 having alternating and continuous vertical grooves 8a and cam grooves 8b on its surface. Then, the engaging piece 14a of the sliding ring 14 that moves integrally with the slider 13 provided on the side of the shaft cylinder 1 is connected to the cylindrical cam 8.
The applicator fits into the groove of the applicator and rotates the cylindrical cam 8 in a circular direction each time the sliding ring 14 moves forward.