JPH07114996B2 - Cartridge type fixed amount extruding applicator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an applicator in which a coating material in a cartridge housed in a front portion of a barrel is quantitatively extruded each time a knock on the rear portion of the barrel is pressed. Regarding

(Prior Art) As disclosed in Japanese Patent Application Laid-Open No. 60-251963, the applicant of the present invention stores a retractable coating material storage chamber in a shaft cylinder and connects a rear end of a pen body to the tip of the coating material storage chamber. Then, the tip of the screw rod that advances a predetermined amount by the rotor of the knock rotation mechanism that rotates in the circumferential direction each time the knock provided on the rear portion of the shaft cylinder is pressed contacts the rear end of the coating material storage chamber.
We have proposed an applicator with a built-in applicator that fixes a nut that engages with a screw rod and presses the applicator storage chamber with a fixed amount each time the knock is pressed to supply the applicator to the pen.

(Problems to be solved by the invention) By the way, in the above-mentioned prior art, since the coating material is pushed out by pressing and contracting the expandable and contractible bellows, the coating material remains in the bellows and becomes disposable, resulting in a relatively high cost. There was a problem that became.

(Means for Solving Problems) An object of the present invention is to solve the above problems and is an applicator in which an ink brush is attached to a front portion of a barrel, and a coating material is provided on an intermediate portion of the barrel. A cartridge containing the above is arranged, a nut is arranged inside the rear part of the cartridge so that the nut can be rotated at a fixed position, and a rotary shaft integral with the nut is projected rearward from the cartridge and provided at the rear part of the barrel. A rotor that rotates each time the knock is pressed and the rotary shaft are integrally rotatable, and a piston rod screwed with the nut is slidably mounted. It is characterized in that it is slidably contacted and slidably disposed inside the cartridge.

Hereinafter, a detailed description will be given based on the illustrated embodiment. Reference numeral 1 denotes a tip shaft, and an ink brush 2 having a capillary action, such as a synthetic fiber bundle, a natural fiber bundle, urethane, and a sponge, is fixed by a fixed tube 3 at the tip, and the tip shaft 1 is fitted and fixed at the tip of a barrel 4. There is.
Reference numeral 5 is a cartridge containing a coating material such as a cosmetic solution and ink housed in the front portion of the shaft cylinder 4, and the tip portion 5a is inserted into the rear portion of the ink brush 2. 6 is a piston slidably arranged in the cartridge 5, 7 is a piston rod which is inserted into the deformed hole 8a of the collar 8 at the rear part of the cartridge 5 and is only slidable, and a screw 9 is engraved on the outer periphery thereof. There is. Reference numeral 10 denotes a nut arranged inside the rear portion of the cartridge 5 so as to be rotatable at a fixed position, and a modified rotating shaft 11 is integrally or separately (integrally shown in the drawing) protruding rearward from the center thereof. Reference numeral 12 is a knock fitted in the rear end of the shaft cylinder 4, and 13 is a rotor that is pressed by the knock 12 by a certain amount and rotated by a certain amount to return to the original position.
A deformed hole 13a formed at the center of the rotor 13 is fitted to the deformed rotating shaft 11. As shown in FIG. 6, a ridge 12a having a constant pitch is formed on the outer periphery of the knock 12, and the lower end of the ridge 12a is an inclined surface 12b inclined in one direction. The outer periphery of the rotor 13 has the same pitch as the knock 12. A ridge 13a is formed, and a rear end 13b of the ridge 13a is inclined in one direction to abut the ridge front end 12b of the knock 12, and the rotor 13 pushed by the spring 14 is pushed by the knock 12. Each time the rotor 13 is rotated by one pitch and returns to its original state, its structure and action are well known, and detailed description thereof will be omitted.

Next, the operation will be described. When knock 12 is released, rotor 13 rotates one pitch and rotating shaft 11 rotates a fixed amount. The nut 10 that is integral with the rotating shaft 11 rotates in place and
The piston rod 7 screwed to the screw 10 with the screw 10 also tries to rotate at the same time, but the rotation of the piston rod 7 is blocked by the collar 8, so that the piston rod 7 advances by a certain amount. Therefore, a certain amount of the coating material in the cartridge 5 is pushed out by the piston 6 onto the ink brush 2.

It should be noted that the piston rod rotating mechanism may be any mechanism as long as the rotor rotates a fixed amount each time the knock is pressed to advance the piston rod a fixed amount.

(Effect) According to the present invention, there is provided an applicator in which an ink brush is attached to a front portion of a barrel, and a cartridge containing a coating material is provided in an intermediate portion of the barrel, and an inside of a rear portion of the cartridge is provided. A nut is provided so that it can rotate at a fixed position, a rotary shaft integral with the nut is projected rearward from the cartridge, and the rotor is rotated every time a knock provided on the rear portion of the shaft cylinder is pressed and the above-mentioned rotation. Mounted so that the shaft can rotate integrally, mounted so that the piston rod screwed with the nut can only slide, and the piston at the tip of the piston rod is slidably contacted and slidably arranged inside the cartridge. Therefore, the coating material in the cartridge can be completely discharged, and after the cartridge is used, it can be replaced with a new cartridge, which is economical.

Also, after the cartridge has been used up, the cartridge can be removed from the barrel, the cartridge nut can be rotated in the opposite direction, and the piston can be retracted to refill the cartridge with new coating material. Can be used.

[Brief description of drawings]

1 is a front sectional view of an embodiment of the present invention, FIG. 2 is a front sectional view of a cartridge of FIG. 1, FIG. 3 is a perspective view of a nut and a rotating shaft of FIG. 1, and FIG. 4 is a sectional view of FIG. FIG. 5 is a sectional view taken along the line AA, FIG. 5 is a sectional view taken along the line BB of FIG. 1, FIG. 6 is an explanatory view of the rotating mechanism shown in FIG. 1, and FIG. 7 is a front sectional view of a conventional product. 1 ... Leader shaft, 2 ... Ink brush, 4 ... Shaft cylinder 5 ... Cartridge, 6 ... Piston, 7 ... Piston rod 9 ... Screw, 10 ... Nut, 11 ... Rotating shaft 12 ... Knock, 13 ... rotor

Claims (1)

[Claims] 1. An applicator in which an ink brush (2) is attached to the front of a barrel (4), and a cartridge (5) containing a coating material is provided in the middle of the barrel (4). Then, a nut (10) is arranged inside the rear part of the cartridge (5) so that it can rotate at a fixed position, and a rotation shaft (1) integrated with the nut (10) is provided.
The rotor (13), which projects 1) rearward from the cartridge (5) and rotates each time the knock (12) provided at the rear of the shaft cylinder (4) is pressed, and the rotary shaft (11) rotate integrally. The piston rod (7) screwed to the nut (10) is slidably attached, and the piston (6) at the tip of the piston rod (7) is attached to the cartridge (5).
Cartridge-type quantitative extrusion applicator that is slidably contacted and slidable inside.