JPH0418493Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a makeup brush for applying liquid eyebrow ink, liquid lipstick, etc., for example.

``Prior Art'' In this type of makeup brush, the upper part of a lower cylindrical member with a suction valve is fitted into the lower part of an upper cylindrical member with a discharge valve in a vertically movable state and in a downward biased state. A pump chamber is formed inside the upper cylinder member, and the upper end of the upper cylinder member is communicated with the discharge valve so that the brush tip stands upwardly, and a cylindrical brush shaft is suspended from the outer surface of the upper cylinder member. When the mouth and neck of the container body, which is vertically movably inserted into the brush shaft, is fitted onto the lower outer surface of the brush shaft, and the container body is pushed up against the brush shaft, the liquid in the pump chamber is discharged from the discharge valve to the brush tip. There is a so-called knock-type type in which the container is lowered and the liquid inside the container flows into the pump chamber through the suction valve when the pump is released.
63571, Utility Application No. 17933, etc.)

``Problem that the invention attempts to solve'' In the makeup brush mentioned above, when the container body is pushed up against the brush shaft, the liquid inside the pump is discharged into the brush tip.
For example, there has been a problem in that a makeup brush stored inside a handbag or the like may be accidentally discharged due to the lower end of the container hitting another object.

The object of the present invention is to provide a makeup brush that can eliminate such problems by providing an extremely easy and safe device.

"Means for Solving the Problems" In order to achieve the above object, the present invention provides an arrangement in which the upper part of the lower cylinder member 2 with the suction valve 16 is movable up and down within the lower part of the upper cylinder member 1 with the discharge valve 12. The pump chamber 3 is formed inside these two members by being fitted in a downwardly biased state, and the upper end of the upper cylinder member is communicated with the discharge valve to cause the brush tip 23 to stand up upward, and the upper cylinder A cylindrical brush shaft 24 is suspended from the outer surface of the member, and the opening and neck portion of the container body 31, which is vertically movably inserted into the brush shaft, is fitted onto the lower outer surface of the lower cylinder member, and the container body is When pushed up against the brush shaft, the liquid in the pump chamber is supplied to the brush tip from the discharge valve, and when the push is released, the container body descends and the liquid inside the container flows into the pump chamber from the suction valve. In the provided makeup brush, a rotation preventing means 39 is provided between the outer surface of the container body 31 and the inner surface of the brush shaft 24, and the upper part of the operating barrel 40 is rotatable and removable at the lower end of the brush shaft. A first engaging portion 44 is attached to the inner surface of the intermediate portion of the cylindrical portion, and a second engaging portion 46 that engages with the first engaging portion to form the cam mechanism 45 is attached to the inner surface of the intermediate portion of the cylindrical portion. The present invention is characterized in that the container body is attached to the lower end of the container body so that the container body can be moved up and down with respect to the brush shaft by rotating an operation tube with respect to the brush shaft.

"Operation" For example, from the state shown in FIG.
When the container body 3 is rotated by a predetermined angle in a predetermined direction with respect to the cam mechanism 45, the container body 3 is
1 and the lower barrel member 2 integrated therewith are pushed up with respect to the brush shaft and the upper barrel member 1 integrated therewith.

As a result, the pressure inside the pump chamber 3 becomes high, the suction valve 16 closes, and the discharge valve 12 opens, so that the liquid in the pump chamber is absorbed into the brush tip 23 through the discharge valve.

When the operating barrel is rotated from the above state in the same direction or in the opposite direction, the cam mechanism 45
Since the lifting action is canceled, the container body etc. is now lowered relative to the brush shaft etc. by the force of the spring 20 interposed between the upper cylinder member side and the lower cylinder member side.

This causes the suction valve 1 to become negative pressure in the pump chamber.
6 is opened (at this time, the discharge valve 12 is already closed), and the liquid inside the container is sucked into the pump chamber. Incidentally, negative pressure inside the container due to a decrease in the liquid inside the container is prevented by raising the bottom cover 34 of the container.

"Embodiments" Examples of the present invention will be described below based on the accompanying drawings.

As shown in FIGS. 1 to 3, the upper part of the lower cylinder member 2 is fitted into the lower part of the upper cylinder member 1 in a vertically movable and downwardly biased state, and the pump is pumped inside these two members. A chamber 3 is formed.

In the illustrated example, the upper cylinder member 1 is composed of a single cylinder part 4 and a double cylinder part 5 of an inner cylinder 5a and an outer cylinder 5b branched from the lower end of the single cylinder, and the lower cylinder member 2 is also a single cylinder part. It consists of a portion 6 and a double cylindrical portion 7 consisting of an inner cylinder 7a and an outer cylinder 7b branched from the lower end of the single cylinder. The single cylindrical portion 6 of the lower cylindrical member 2 is fitted into the circumferential gap between the outer cylinders 5a and 5b of the upper cylindrical member 1.

Further, inside the upper cylinder member 1, a pair of left and right arc-shaped elastic compression plate parts 9 hang down from the lower end of the upper end cylinder part 8 fitted on the inner surface of the single cylinder part 4, and are attached below the plate. A member 13 with a valve body that forms a discharge valve 12 by compressing the valve body 10 onto a valve seat 11 attached to the inner surface of the inner cylinder 5a is housed. On the other hand, the lower cylinder member 2 has a valve seat 1 attached to the lower inner surface of the inner cylinder 7a.
A suction valve 16 is formed by placing a ball valve body 15 on the valve body 4 so as to be able to freely approach and separate it.

Furthermore, a rod-shaped member 17 is housed in the pump chamber 3 formed between the discharge valve 12 and the suction valve 16 to increase the compression ratio within the chamber. The member 17 has spacers 18 protruding radially from the lower outer surface of the rod portion, and is fixed to the lower cylinder member 2 by pressing the tips of these spacers 18 against the lower inner surface of the inner cylinder 7a, and the lower end of the rod is positioned above the ball valve body 15 to restrict free movement of the ball valve body. Further, the rod-shaped member has an upper end that pushes up the lower end of the valve body 10 only when the lower cylinder member 2 is pushed up to the upper limit with respect to the upper cylinder member 1.
The discharge valve 12 is provided so as to be forcibly opened by the thrust. In the figure, 19 is a sealing cylinder whose upper half is fitted into the lower part of the inner cylinder 5a of the upper cylinder member 1 and whose lower outer surface is in sliding contact with the inner surface of the inner cylinder 7a of the lower cylinder member 2. This is a return spring interposed between the lower surface of the branch of the upper cylinder member and the upper surface of the single cylinder portion 6 of the lower cylinder member. Further, 21 is a spring for producing sound, and 22 is a retaining means consisting of a long hole 22a bored on the upper cylinder side and a protrusion 22b protruding on the lower cylinder side.

The upper end of the upper cylinder member 1 communicates with the discharge valve 12 to make a brush tip 23 stand upwardly, and a cylindrical brush shaft 24 is suspended from the outer surface of the upper cylinder member.

In the illustrated example, a cylindrical body 2 with a flange is placed in the upper end cylindrical portion 8.
The lower part of the cylinder 5 is fitted, and the lower part of the liquid discharge pipe 26 is fitted into the upper part of the cylinder 25. The upper portion of the pipe 26 is led out to a vertically intermediate portion of the axial center portion of the brush tip 23 fixed to the upper surface of the flange portion of the cylindrical body 25. The brush tip 23 is
The presser cylinder 20, whose lower part is fitted onto the outer surface of the single cylinder part 4, is fixed and held in a non-slip state by the inner surface of the tapered cylinder part of the upper part of the presser cylinder 20, whose lower part is fitted onto the outer surface of the single cylinder part 4, through the tapered metal cylinder 27 and the rubber cylinder 28 on the outer surface of the lower part. There is. The upper inner surface of the brush shaft 24 is fitted into the lower outer surface of the outer cylinder 5b, and the lower end of the cap 30 is fitted into the upper outer surface of the outer cylinder 5b.

Mouth and neck portion 3 of a container body 31 is inserted into the lower outer surface of the lower cylinder member 2 into the brush shaft 24 so as to be vertically movable.
2 is fitted.

In the illustrated example, the container neck 32 is fitted onto the outer surface of the inner cylinder 7a, and the bottom cover 34 is fit into the lower part of the container body 33 in a movable and watertight manner. The bottom cover 34 has an elastic peripheral wall 3 having an arc-shaped peripheral edge.
5, and this elastic peripheral wall 35 is brought into pressure contact with the inner surface of the body portion 33, and a short cylindrical portion 36 is suspended from the lower surface. Further, a plurality of vertical grooves 37 are formed in the circumferential direction on the outer surface of the container mouth neck 32, and the vertical grooves 37
A protrusion 3 attached to the inner surface of the brush shaft 24 is located in the upper part of the brush shaft 24.
8 is fitted so as to be vertically movable. That is, the longitudinal groove and the protrusion form a means 39 for preventing the container body from rotating with respect to the writing shaft.

The upper end of the outer cylinder 41 of the operation cylinder 40 is fitted onto the lower end of the writing shaft 24 via an engagement means 42 of uneven stripes so as to be rotatable but not to be pulled out. An upward step portion 43 is formed on the inner surface of the outer cylinder, and a rod-shaped first engaging portion 44 is formed on the inner surface portion below the step. On the other hand, a serrated second engaging part 46 that engages with the first engaging part 44 to form a cam mechanism 45 is formed on the outer peripheral edge of the lower end of the container body body 33 (see FIG. 3). ).

Therefore, by rotating the operating barrel 40 with respect to the brush shaft 24, the container body 31 and the lower barrel member 2 integrated therewith move up and down relative to the brush shaft and the upper barrel member 1 integrated therewith. It turns out.

In addition, the bottom wall 4 with the breather hole 47 of the operation cylinder 40
8 stands up an inner cylinder 49 that fits into the short cylinder part 36 of the bottom cover 34 so as to be vertically movable. Also,
A knurled portion 50 is provided on the outer surface of the outer cylinder 41.

In the above embodiment, the pump chamber 3 is set to have a volume that accommodates an appropriate amount of flow that is sufficient for the brush tip 23 but not excessive. Further, each part is molded and manufactured from synthetic resin materials as appropriate, except for the metal cylinder 27, rubber cylinder 28, return spring 20, etc.

"Effects of the invention" As explained above, according to the invention, by rotating the operation tube using the cam mechanism, the container body moves up and down with respect to the brush shaft, and the liquid inside the pump is supplied to the brush tip. Therefore, even if the operation barrel hits another object, it will not easily rotate, and therefore, the liquid in the pump chamber will not be inadvertently discharged to the brush tip and cause liquid leakage. In addition, when in use, the operation tube is simply rotated relative to the pen shaft, and the operation is simple.

[Brief explanation of the drawing]

FIG. 1 is a half-sectional view showing an embodiment of the present invention, FIG. 2 is a perspective view of the entire structure, and FIG. 3 is a perspective view of a container body. DESCRIPTION OF SYMBOLS 1...Upper tube member, 2...Lower tube member, 3...Pump chamber, 23...Brush tip, 24...Brush shaft, 31...Container body, 39...Rotation prevention means, 40...Operation barrel ,
44...first engagement part, 46...second engagement part.

Claims (1)

[Scope of utility model registration request] The upper part of the lower cylinder member 2 with the suction valve 16 is fitted into the lower part of the upper cylinder member 1 with the discharge valve 12 in a vertically movable manner and in a downward biased state, and a pump chamber 3 is formed inside these two members. The upper end of the upper cylinder member is communicated with the discharge valve to make the brush tip 23 stand upwardly, and the cylindrical brush shaft 24 is suspended from the outer surface of the upper cylinder member, and on the lower outer surface of the lower cylinder member, When the mouth and neck of the container body 31, which is vertically movably inserted into the brush shaft, is fitted and the container body is pushed up against the brush shaft, the liquid in the pump chamber is supplied from the discharge valve to the brush tip. Further, in a makeup brush that is provided so that when the push-up is released, the container body descends and the liquid inside the container flows into the pump chamber through the suction valve, there is a rotation stopper between the outer surface of the container body 31 and the inner surface of the brush shaft 24. A means 39 is provided, and the upper part of the operation barrel 40 is rotatably and removably fitted onto the lower end of the writing shaft, and a first engaging part 44 is attached to the inner surface of the intermediate part of the barrel. Further, a second engaging portion 46 that engages with the first engaging portion to form a cam mechanism 45 is attached to the lower end portion of the container body, and the operating barrel is rotated with respect to the brush shaft. A makeup brush characterized in that the container body is provided to be movable up and down with respect to the brush shaft.