JPH0121615Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field In this invention, the brush barrel is filled with cosmetic liquid, and when a certain operation is performed, the cosmetic liquid inside the brush barrel enters the brush tip and wets the brush tip, causing the brush tip to become wet. The present invention relates to a brush tip of a cosmetic liquid application brush that is capable of applying makeup by applying a cosmetic liquid containing the cosmetic liquid.

Prior Art Conventionally, a container containing a cosmetic liquid and a brush for applying the cosmetic liquid have been formed separately, and the tip of the brush has been formed by bundling a large number of brush bristles.

It is convenient to integrate the container body and the brush and fill the brush barrel with cosmetic liquid, so that by a certain operation, the liquid in the brush barrel enters the brush tip and the brush tip can be used to apply makeup. . Therefore, as shown in FIG.
The brush tip main tube 31 is formed with a brush tip main tube 31, the upper part of the tip is held in the lower tube hole of the tip main tube, and the tip lower part is made to hang down below the tip main tube 31, and it is formed by bundling a large number of brush bristles. A brush tip consisting of a brush tip 34 held by the brush bristles and a small pipe 35 provided by opening the upper end of the pipe into the main barrel of the brush tip and opening the lower end of the pipe into the lower part of the brush tip. The brush tip is detachably attached to the lower end of the brush shaft 3 with a liquid chamber, and an operating rod 1 is provided in the brush shaft that is biased upward.
4 was inserted, and the liquid in the brush barrel was press-fitted into the brush tip 34 through the small pipe 35 by operating the operating lever. The portions of the prototype except for the tip of the brush are the same as those shown in FIG. 1, which will be described later, and will not be described here.

Problems to be Solved by the Invention In the above prototype, when the cosmetic liquid was being press-fitted, the brush tip below the bottom end of the small pipe would separate to the left and right, and the cosmetic liquid would sometimes drip from this area. .

This proposal eliminates the above drawbacks.

Means for Solving the Problems The brush tip of the present invention consists of a main tip tube, a brush tip, a small pipe, and a thin tube with high elasticity.

The main brush tip cylinder 1 has an upper part 2 that can be freely attached to and removed from the lower end of the brush shaft 3.

The brush tip 4 is formed by holding the upper part of the tip in the lower tube hole of the main brush tip tube 1, letting the lower part of the tip hang down below the main tip tube 1, and by bundling a large number of brush bristles. .

The small pipe 5 is held by the brush bristles and has its upper end opened inside the main brush tip tube 1, and its lower end opened inside the lower part of the brush tip.

The thin tube 6 holds the brush tip and fits into the inner surface of the tube hole of the main tip tube, and is made of a highly elastic member.

The lower end of the thin-walled tube 6 is located below the tip main tube and the lower end of the small pipe, and above the lower end of the brush tip.

Function When the cosmetic liquid passes through the small pipe 5 and enters the brush tip from the barrel 3 by press-fitting, the brush bristles near the lower end of the small pipe are pushed to the side by the liquid pressure. The outer surface of the brush tip at the lower end of the small pipe is wrapped in a highly elastic thin tube 6, so even when the brush is pushed as described above, the thin tube also swells, and then the elasticity of the thin tube increases. As the brush is restored, the liquid inside the brush moves directly below the brush and wets the lower part of the brush.

Embodiment A tube 8 with a flange 7 is fitted into the main brush tip tube 1, and the tube holds the tip of the brush and the upper end of the thin-walled tube between it and an upwardly facing step on the inner surface of the bottom of the main brush tip tube.

The complete cosmetic liquid application brush including the brush shaft 3 may be formed as shown in the drawing. 11 is a barrel, and the upper part of the main brush tip barrel 1 is screwed into the lower end of the barrel. A valve rod 13 is suspended from a push button 12 which is vertically movably fitted to the upper part of the barrel to form an operating rod 14, and the valve lever is loosely inserted into the barrel and the main barrel 1 of the tip. The operating rod 13 is urged upward by a spring 15, and a piston 16 is provided at the bottom of the valve rod 13.
A concave groove 17 is vertically provided on the outer surface of the valve rod below the piston. An elastic ring 18 is fixed to the inner surface of the main barrel of the brush tip, and a concave groove 17
A closing ring 19 is slidably inserted into the upper portion of the valve rod so that its outer peripheral surface is in airtight contact with the inner surface of the shaft cylinder and its inner peripheral surface is in airtight contact with the outer surface of the valve rod. I am making it match. A liquid chamber 20 formed between the closure ring 19 and the piston 16, and a pressurized chamber 2 formed between the piston and the elastic ring.
1 refers to a lower space 2 formed between the elastic ring and the inward flange 7 and communicated by a passage 22 that is formed only when the operating rod is at the upper limit.
3 is sealed by an elastic ring 18.

When the operating rod 14 is pushed down using the push button 12,
When the passage 22 is closed and the groove 17 is located within the elastic ring 18, the pressurizing chamber 21 and the lower space 23 communicate with each other through the groove.

Therefore, the cosmetic liquid is placed in the liquid chamber 20,
When the operating rod 7 is moved up and down by pressing the button several times, liquid enters the pressurizing chamber through the passage 22. When the push button 12 is pressed down from this state, the passage 22 closes and the pressurized chamber is pressurized, and then the liquid in the pressurized chamber flows into the lower space 23 through the groove 17 and enters the lower space. Since the dripping liquid enters the brush tip 4, all you have to do is release the push button and apply it with the brush tip 4a. When the push button is released, the concave groove 17 rises as the operating lever rises, and the elastic ring 18 between the lower space 23 and the pressurizing chamber 21 is sealed, and a passage 22 is subsequently formed, so that the inside of the pressurizing chamber 21 and the inside of the pressurizing chamber 21 are sealed. The inside of the liquid chamber 20 is in communication with the passage 22 so that an amount of cosmetic liquid corresponding to the amount of liquid that has flowed into the lower space flows into the pressurized chamber 21 through the passage 22.
It flows through. In addition, the closing ring 19 also descends to prevent negative pressure in the liquid chamber. The negative pressure between the closing ring and the push button 12 due to the lowering of the closing ring is as follows:
This is prevented by allowing outside air to flow in through the small gap between the push button and the shaft cylinder and through the intake valve 24.

Effects of the invention In this invention, a highly elastic thin tube holds the brush tip 4 and fits into the tube hole of the main tip tube, and the lower end of the thin tube is positioned below the main tip tube and the lower end of the small pipe. Since it is located above the lower end of the brush tip, even if the liquid pressure of the lotion that is press-fitted into the brush tip through the small pipe is applied to the brush tip portion where the small pipe's bottom end is located, the thin-walled tube will not disturb the brush tip. As the lower part expands against elasticity,
The bristles of the tip of the brush are divided into left and right parts, and the cosmetic liquid does not directly flow out from the divided portions, thus preventing the cosmetic liquid from dripping as described at the beginning.

[Brief explanation of the drawing]

FIG. 1 is a half-sectional view of a cosmetic liquid applicator brush having a brush tip according to the present invention, and FIG. 2 is a half-sectional view showing the main parts of a cosmetic liquid applicator brush having a structure different from that of the present invention. 1...Brush tip main tube, 4...Brush tip, 5...Small pipe, 6...Thin wall tube.

Claims (1)

[Scope of utility model registration request] The brush tip main tube 1 has a tube upper part 2 formed thereon and can be freely attached to and detached from the lower end of the brush shaft 3. A brush tip 4 is formed by bundling together a large number of brush bristles, and is held by the brush bristles so that the upper end of the pipe is opened in the main barrel of the tip, and the lower end of the pipe is inserted into the main barrel of the brush tip. It consists of a small pipe 5 with a hole opened in the lower part, and a highly elastic thin tube 6 that holds the brush tip and is fitted into the inner surface of the tube hole of the main brush tip tube. A brush tip of a cosmetic liquid application brush characterized in that it is located below the lower end of the main brush tip cylinder and the small pipe 5 and above the lower end of the brush tip.