JPH067985U - Applicator - Google Patents

Abstract

(57) [Summary] [Object] To provide an applicator that is easy to manufacture, has an easily controlled discharge amount, and does not excessively discharge. In a coating tool in which a highly flexible coating liquid tank is connected to a tip made of a metal pipe holding a spherical coating body, the spherical coating body 1 is elastically moved by a coil spring 5 arranged in a tip 2. When the spherical applicator 1 is retracted by a ball stroke during application so that it comes into contact with the inward end edge 22 of the chip while a part thereof is exposed from the tip of the chip 2, the coil spring 5 The wire rods come into close contact with each other, and the spherical coating body 1 is brought into contact with the tip of the coil spring to rotate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an applicator filled with a highly viscous coating liquid such as a correction liquid or a cosmetic liquid.

[0002]

[Prior art]

 An applicator with a spherical applicator has a tip attached to the tip of an application liquid tank that is made of a flexible material and filled with the application liquid. The spherical applicator is rotatably held in the state where it is exposed from. Then, the coating liquid in the coating liquid tank is supplied to the surface of the spherical coating body and is coated on the coating surface by the rotation of the spherical coating body on the coating surface, but when not in use, it is repelled by a coil spring. The spherical applicator is brought into close contact with the inward tip end of the chip, and the spherical applicator and the tip end of the chip form a valve structure to prevent the coating liquid from being discharged.

[0003]

[Problems to be solved by the device]

 In such an applicator, when the tip of the spherical applicator is pressed against the application surface during application, the spherical applicator retreats and separates from the tip edge of the tip to open the valve, but when the tip is made of a metal pipe, it is strong. When pressed, the spherical applicator will be completely immersed in the chip. Therefore, the valve is in a wide open state, and the coating liquid is excessively discharged. That is, since the ejection amount changes depending on the pressing force applied to the coating surface, there is a problem that it is difficult to control the ejection amount.

Therefore, like a pipe type ball-point pen, in the vicinity of the tip of the tip, the seat portion is formed by pressing from the radial direction toward the center line of the tip, and the spherical applicator comes into contact with the seat portion. Although it may be possible to rotate the seat, there is a problem that a step of forming the seat is required and it is difficult to form the seat at an accurate position.

Therefore, an object of the present invention is to provide an applicator that is easy to manufacture, has a controlled discharge amount, and does not discharge excessively.

[0006]

[Means for Solving the Problems]

 To achieve such purpose. The present invention is an applicator in which a highly flexible coating liquid tank is connected to a tip made of a metal pipe holding a spherical coating body, and the coating liquid tank is filled with a highly viscous film-forming coating liquid. The spherical applicator is elastically repelled by a coil spring placed inside the chip so that a part of it is exposed from the tip of the chip and contacts the inward tip edge of the chip. When only the ball stroke is retracted, the coil springs come into close contact with each other, and the spherical coated body rotates by contacting the tip of this coil spring or the presser interposed between the coil spring and the spherical coated body. To do.

[0007]

[Action]

 Since the spherical applicator is elastically repelled by the coil spring, when not in use, the spherical applicator adheres to the inward tip edge of the tip made of a metal pipe and does not discharge the correction fluid. , The strands of the wire closely adhere to each other to serve as a seat, and the spherical applicator rotates at the tip of the coil spring or in contact with the pressing element interposed between the coil spring and the spherical applicator. The spherical coated body does not sink further into the chip, the discharge rate is easy to control, and excessive discharge does not occur.

[0008]

【Example】

 The present invention will be described in detail below with reference to the embodiments shown in the drawings. In FIG. 1, a spherical applicator 1 is rotatably held at the tip of a tip 2 made of a stainless steel pipe. That is, the spherical coating body 1 made of a super hard ball having a diameter of 1.0 mm is put into the coating liquid passage hole 21 of the tip 2 having an inner diameter of 1.05 mφ, which is deformed inward by caulking the tip edge 22. Then, insert the coil spring 5. At this time, the spherical coated body 1 projects by 0.23 mm from the tip of the tip 2.

The chip 2 is held by a holder 3, and the holder 3 is connected to a coating liquid tank 4 formed of a flexible material. A cylindrical insert 6 is press-fitted into the holder 3, and one end of the coil spring 5 is received by the insert 6. Therefore, the spherical applicator 1 is repelled by the coil spring 5 and is in contact with the tip edge 22 of the tip 2. Then, from the inside of the coating liquid tank 4 to the chip 2, the coating liquid, which is a correction liquid having a viscosity of 30 to 40 cps and high film-forming property, is filled.

Here, the coil springs 5 are densely wound with the interval between the strands of wire being extremely small. When the spherical applicator 1 is retracted and the distance from the tip edge 22 of the tip 2 becomes 0.1 mm, which is the distance through which the application liquid can pass, the wire strands of the coil spring 5 come into close contact with each other and the coil spring 5 is pressed. The total length of the is not to be shortened any more. That is, the spherical application body 1 has a ball stroke of 0.1 mm at the time of application and cannot move forward or backward by 0.1 mm or more.

In use, however, when the coating liquid tank 4 is pressed with a fingertip to reduce the internal volume, the coating liquid in the chip 2 adheres to the outer circumference of the spherical coating body 1. Then, as shown in FIG. 2, when the coating material 7 is moved while pressing along the coating surface 7, the spherical coating material 1 retreats against the elastic force of the coil spring 5, but from the tip edge 22 of the tip 2. When the predetermined ball stroke is separated by 0.1 mm, the strands of the coil spring 5 are closely attached to each other, so that the spherical applicator 1 does not retreat any further, and the spherical applicator 1 contacts the tip of the coil spring 5 and rotates. That is, the tip of the coil spring 5 plays a role of a seat, and the coating liquid is not excessively discharged. Although not shown, a presser may be interposed between the spherical applicator 1 and the coil spring 5 so that the spherical applicator 1 contacts the presser and rotates.

[0012]

[Effect of device]

 As described above, in the applicator of the present invention, during application, the retracting spherical applicator touches the tip of the coil spring to which the wires come into close contact with each other or the pressing element interposed between the coil spring and the spherical applicator. Since it is rotated, it is not necessary to form a seat portion on the tip, the discharge amount can be easily controlled, and an applicator that does not excessively discharge can be provided.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a usage state.

[Explanation of symbols]

 1 Spherical coating body 2 Chip 21 Coating liquid passage hole 22 Tip edge of chip 3 Holder 4 Coating liquid tank 5 Coil spring 7 Coating surface

Claims (1)

[Scope of utility model registration request] 1. An applicator in which a highly flexible coating solution tank is connected to a chip made of a metal pipe holding a spherical coating body, and the coating solution tank is filled with a film-forming coating solution having high viscosity. The spherical applicator is elastically repelled by a coil spring arranged in the chip and a part of the applicator contacts the inward tip edge of the chip in a state of protruding from the tip of the chip. When the coil spring retreats by a predetermined ball stroke, the strands of the coil spring come into close contact with each other, and the spherical applicator rotates by contacting the tip of the coil spring or the pressing element interposed between the coil spring and the spherical applicator. An applicator characterized in that