JPH0614845Y2 - Liquid applicator - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) This invention applies to applicators, especially cosmetics, glue, paint, etc.
The present invention relates to improvement of an applicator that can supply a liquid of high viscosity.

(Prior Art) Conventionally, in an applicator for applying a liquid, a retractable coating material storage chamber communicating with a pen body at the tip of the barrel is housed in the barrel, and the coating material storage chamber is provided at the rear of the barrel. There is one in which a screw rod is advanced in one direction by pressing a knock to supply a liquid as a coating material to a pen body (Japanese Patent Laid-Open No. 60-251963).

(Problems to be solved by the invention) However, in the above-mentioned conventional one, by pressing the knock, the linear motion is converted into the rotary motion by the rotor once screwed into the screw rod, and the rotary motion is further performed. Since it is converted into a linear motion by the screw rod itself between the child and the screw rod, the operation efficiency is lowered and it becomes difficult to use it continuously. Also, depending on the viscosity of the liquid filled in the coating material storage chamber, it is necessary to adjust the supply amount very accurately, and it is necessary to determine the screw pitch of the screw rod that directly relates to the supply amount, which requires high processing accuracy. There are drawbacks that it is required, and the structure becomes complicated, resulting in increased cost and reduced work efficiency. In view of this, the present invention is intended to improve the drawbacks of the above-mentioned conventional ones, and to enable a liquid having any viscosity to be efficiently applied with a simple structure.

(Means for Solving the Problem) For that purpose, an intermediate shaft body having a pump part that abuts on the rear part of the ink tank housed in the shaft or is fitted so as to closely slide in the ink tank from the rear of the ink tank is formed. The hooks that are arranged side by side and project in parallel with each other in a saw blade shape are provided, and the distance between the movable locking piece that moves the center shaft body that is locked to this in one direction and the fixed locking piece that is fixed to the shaft is set. The viscous liquid is supplied to the pen tip by holding it by a spring and moving the movable locking piece to move the center rod forward by pushing the knocking portion.

(Operation) With the configuration described above, by pressing the knock portion with fingers, the spring is pressed and compressed, and the locking piece of the movable locking body is pushed down together with the central shaft body that is engaged. By compressing the ink tank or advancing the pump portion that closely slides in the ink tank, the liquid filled inside is appropriately fed to the pen tip portion by moving in only one direction.

(Embodiment) The invention will be further described with reference to an embodiment shown in the drawings. FIG. 1 shows a first embodiment, and the same reference numerals in the respective drawings denote the same parts. (1) is a liquid applicator which is an embodiment of the present invention, the liquid applicator (1) has a pen tip (17) at the tip of the shaft (2), and the pen tip (17) A liquid supply device for supplying a liquid is provided in the shaft (2), and the head of the knock part for operating the liquid supply device is projected and retracted from the rear part of the shaft. Although the pen tip (17) is shown as a sponge, it may be a brush or a rotatable ball. This liquid supply device can be locked on the outer surface in only one direction at the rear end (16) of the expandable ink tank (9) having the communication hole (20) so as to communicate with the pen tip (17). The saw-shaped hook part (11) is abutted on the central shaft body (10), and the hook part (1
In contrast to 1), the fixed locking piece (15) of the fixed locking body (3) fixed to the inner wall of the main body (2), the inner cylindrical body via the fixed locking body (3) and the spring (6) The movable locking piece (14) of the movable locking body (4), whose movement is stopped by the saw portion (12) of (5), locks, and the center shaft body (10)
The movement of is stopped. In addition, the collar part (2
A spring (22) is fitted between the knock portion (12) located at the rear end of the shaft (2) and the shaft (2) to support the knock portion (12) so that it can be projected from and retracted from the rear end of the shaft (2). It is a thing. With such a configuration, by pressing the knock portion (12) with fingers, the protrusion (8) protruding laterally of the knock portion (12) is formed into the inner cylindrical body (5).
Move axially along the slit (7) in the
The tip (13) of the knock part (12) abuts the movable locking body (4) against the resilience of the spring (2), and the movable locking body (4) is moved forward and the spring (6) springs. Although it moves forward against the firing, since the movable locking piece (14) of the movable locking body (4) is locked to the saw blade hook (11),
While advancing the central shaft body (10) integrally with it, the top part of the ink tank (9) is pressed and the whole is compressed. In this way, when the intermediate shaft body (10) is moved forward, the fixed locking piece (15) of the fixed locking body (3) has the hook portion (11).
Although it does not engage with this by crossing over, it locks with the hook part (11) at the advanced position and prevents the center rod (10) from moving in the backward direction.
The movable locking body (4) crosses over the hook portion (11) and returns to its original position by the elastic force of (6). On the other hand, knock part (12)
The protrusion of the spring (22) moves rearward again along the slit (7) by the elastic force of the spring (22), projects from the rear end of the main body (2), and returns to the original state. Then, the high-viscosity ink is extruded from the tip by the central shaft body that is compressed in the ink tank, and is applied.
Stops at the position where the ink tank is compressed, so that the ink can be pushed further outward by pressing the next knocking portion. In addition, (18) is a base part that holds the pen tip part (17), and (19) is a joint part that connects the base part (18) and the main body (2).

Next, in a second embodiment shown in FIGS. 2 to 4, instead of the fixed locking body (3) in the first embodiment, a soft high elastic body such as rubber is used, and the central shaft body (10 ) Insert the central shaft
An insertion hole (23) having a cross section slightly smaller than (10) is provided. By doing so, the center shaft body (10) that is advanced by the knock portion (12) through the movable locking body (4) has its hook portion (1
Due to the elastic locking between 1) and the insertion hole (23) of the fixed locking body (3), the fixed locking piece (15) and the hook portion (11) in the first embodiment are not retracted, and the locking and locking is not performed. The same action will be performed.

In the second embodiment, the fixed locking body can have a simpler structure than the first embodiment, and the cost can be reduced and the accuracy can be easily improved.

FIG. 5 shows a third embodiment, in which the rear end (16) of the expandable ink tank (9) of the first and second embodiments is replaced with an ink tank ( 9) The rear end is opened, and the inner shaft body (10) having the pump body (24) at the front end is fitted so as to slide closely.By doing so, the inside of the ink tank (9) is The entire amount of ink stored in can be pushed out.

FIG. 6 shows a fourth embodiment in which the knock part (12) and the movable locking body (4) are integrated, and the collar part (21) is provided inside the tip of the knock part (12). By this, by doing so, the spring (22) for retracting the knock part (12) from the rear end of the shaft, the spring (4) provided between the movable locking body (4) and the fixed locking body (3) ( 6) can be integrated and the structure can be simplified, which is good when a large amount of discharge such as paint is required at one time.

(Effect of the device) As described above, the coating material in the ink tank is pushed out to the coating portion by advancing the center shaft body that is locked by the locking piece by pressing the knock portion, and this liquid coating material is applied to the pen tip portion. Since it is sent in and has a simple structure, it has few failures and has an excellent effect of being able to extrude particularly high-viscosity ink.

[Brief description of drawings]

FIG. 1 is a partial sectional view of a first embodiment of a liquid applicator according to the present invention, and FIGS. 2 to 4 are longitudinal sectional views of the second embodiment and AA, BB sectional views. Figures 5 and 6 are the third respectively
The longitudinal cross-sectional view of Example and 4th Example is shown. 1 ... Liquid applicator, 2 ... Shaft, 3 ... Fixed locking body, 4 ... Movable locking body, 5 ... Inner cylinder, 6,22 ... Spring, 7 ... Slit, 8 ... Protrusion, 9 ... Ink tank, 10 ... Medium shaft body, 11 ... Hook part, 12 ... Knock part, 13 ... Tip, 14 ... Movable locking piece, 15 ... Fixed locking piece, 17 ... Pen tip

Claims (2)

[Scope of utility model registration request] 1. An expandable and retractable ink tank is provided in a shaft, and an inner shaft body that abuts a rear portion of the ink tank is provided. The inner shaft body has a hook portion juxtaposed in a saw blade shape on a side surface thereof.
The movable locking piece is moved within the shaft by holding a gap between the movable locking piece that is locked to the hook portion and moves the center rod in one direction and the fixed locking piece that is fixed to the shaft by a spring. A liquid applicator in which the knock part is fitted into and retracted from the rear part of the shaft. 2. An inner shaft body having an ink tank which is not deformed in the shaft and having a pump which closely slides in the ink tank is provided at the rear of the ink tank, and the inner shaft body is provided with hook portions arranged side by side in a saw blade shape. In addition to projecting, the spring holds the gap between the movable locking piece that locks to the above-mentioned hook part inside the shaft and moves the center shaft body in one direction, and the fixed locking piece fixed to the shaft. A liquid applicator in which a knocking part for moving the locking piece is fitted into and retractable from a rear part of the shaft.