JP3394314B2 - Mascara applicator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mascara applicator capable of adjusting the ironing strength of a brush.

[0002]

2. Description of the Related Art Generally, a mascara applicator is designed such that after applying mascara to a brush, the brush is squeezed by an squeezing member to adhere a predetermined amount of mascara to the brush. In this mascara applicator, the amount of mascara adhered to the brush can be adjusted appropriately according to the preference of the user.
There is one that allows you to adjust the ironing strength for the brush.

The conventional mascara applicator of this type has the following structure. An inner cylinder containing a mascara is inserted inside the outer cylinder, and when the inner cylinder is rotated with respect to the outer cylinder, a screw mechanism provided on the inner surface of the outer cylinder and the outer surface of the inner cylinder causes the inner cylinder to move. Can be moved up and down with respect to the outer cylinder.

A brush shaft that can be inserted into and removed from the inner cylinder extends from a cap that is screwed into the mouth of the upper end of the outer cylinder, and the brush is fixed to the tip of the brush shaft. At the upper end of the inner cylinder, a member for squeezing the brush is provided, and the squeezing diameter of the squeezing member can be changed by rotating the inner cylinder with respect to the outer cylinder to move it up and down. There is. The ironing strength for the brush is changed by changing the aperture diameter of the ironing member.

[0005]

However, in the above-mentioned conventional mascara applicator, the inner cylinder freely rotates and the squeezing diameter of the ironing member changes when it is carried in a handbag or the like. However, if the product is used as it is during the next use, the amount of mascara adhered to the brush differs from that set by the user.

The present invention has been made in view of the above problems of the prior art, and prevents the inner cylinder from rotating carelessly so that the throttle diameter of the ironing member does not change, and the inner cylinder only when necessary. An object of the present invention is to provide a mascara applicator capable of rotating.

[0007]

The present invention has the following features to attain the object mentioned above. That is, an inner cylinder for housing the mascara is inserted into the outer cylinder, and the inner cylinder is rotatable and vertically movable with respect to the outer cylinder by a screw mechanism provided between the inner surface of the outer cylinder and the outer surface of the inner cylinder. A brush shaft that is movable and that can be inserted into and removed from the inner cylinder extends from a cap that is screwed into the mouth portion of the upper end of the outer cylinder, and a brush is fixed to the tip of the brush shaft. A mascara applicator provided with a squeezing and squeezing member for the brush, wherein the diaphragm diameter of the squeezing member can be varied by moving the inner cylinder up and down with respect to the outer cylinder. A plurality of vertical grooves extending in the up-down direction are provided on the lower outer peripheral surface of the inner cylinder, and an elastic arm which is elastically bendable in the radial direction of the outer cylinder and is in pressure contact with the vertical groove of the inner cylinder is provided on the lower part of the outer cylinder.

In the first aspect of the present invention, when the operation knob is rotatably attached to the lower portion of the outer cylinder and the inner cylinder is vertically movable and non-rotatable with respect to the operation knob, the usability is improved. Well, the design is also improved.

In a second aspect of the invention, an operating knob is attached to a lower portion of the outer cylinder so as to be vertically movable and rotatable with respect to the inner cylinder and the outer cylinder, and a vertical extension extending vertically on a lower outer peripheral surface of the inner cylinder. When a plurality of grooves are provided, the elastic arm extends upward from the bottom of the operation knob, and when the operation knob is pushed upward, the upper part of the elastic arm elastically moves inward by the taper cam surface annularly provided in the lower portion of the outer cylinder. By bending, the engaging protrusion provided on the upper end of the elastic arm engages with the vertical groove of the inner cylinder so that the operation knob and the inner cylinder cannot rotate relative to each other.

[0010]

In the mascara applicator according to the first invention,
Usually, the elastic arm is pressed into engagement with the vertical groove of the inner cylinder by its elasticity. In order to rotate the inner cylinder with respect to the outer cylinder in order to change the aperture diameter of the ironing member, a force large enough to disengage the elastic arm from the vertical groove of the inner cylinder against its elasticity is required. Therefore, even when a small rotational force is transmitted to the inner cylinder due to friction with surrounding members during carrying, the inner cylinder does not rotate and the diaphragm diameter of the ironing member does not change carelessly.

In the mascara applicator according to the second aspect of the invention, the engaging protrusion of the elastic arm is normally in the non-engagement state with the vertical groove of the inner cylinder, and the operating knob is not rotated even if it is rotated. It just spins on the outside of the cylinder. Therefore, even if the operation knob rotates due to friction with surrounding members during carrying, the inner cylinder does not rotate, and the diaphragm diameter of the ironing member does not change carelessly.

When it is desired to change the ironing strength, the operation knob is rotated while pushing it upward to engage the engaging protrusion of the elastic arm with the vertical groove of the inner cylinder. Then,
The inner cylinder is rotated in synchronism with the operation knob, and the diaphragm diameter of the ironing member can be changed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings of FIGS.

[First Embodiment] First, a mascara applicator according to the first invention will be described with reference to FIGS. 1 to 3. The outer cylinder 1 of the mascara applicator has a mouth 2 at the upper end and an open lower end. An inner cylinder 10 having a bottom is inserted inside the outer cylinder 1 in a sealed state so as to be slidable in the vertical direction and the circumferential direction. A mascara is housed in the inner cylinder 10.

Inside the lower part of the outer cylinder 1, a screw ring 3 having a spiral projection 3a on its inner peripheral surface is fixed. On the other hand, on the outer peripheral surface of the lower portion of the inner cylinder 10, the spiral protrusion 3 of the screw ring 3 is
A spiral groove 11 with which a is engaged is provided. By the screw mechanism composed of the spiral protrusion 3a and the spiral groove 11,
When the inner cylinder 10 is rotated with respect to the outer cylinder 1, the inner cylinder 10 moves to the outer cylinder 1.
It is designed to move up and down.

A pressing member 12 having a tubular shape is fixed to the upper end opening of the inner cylinder 10, and an ironing member 13 is attached to the pressing member 12. The squeezing member 13 is formed of an elastic material such as synthetic rubber, and the squeezing piece 13b extends from the upper outer peripheral edge of the tubular portion 13a supported by the pressing member 12 toward the center and is surrounded by the tip of the squeezing piece 13b. The inside is formed as the insertion hole 13c.

Inside the outer cylinder 1, a squeezing piece 13 of the squeezing member 13 extends downward from the base of the mouth 2 and has its tip end.
A cylindrical backing member 4 that abuts b is provided. A cap 20 can be screwed into the mouth portion 2 of the outer cylinder 1, and a packing 21 that seals between the outer cylinder 1 and the outer cylinder 1 is attached to the cap 20. The cap 20 has a brush shaft 22 that extends downward through the packing 21, and a nylon brush 23 is fixed to the tip of the brush shaft 22. The brush shaft 22 extends from the mouth portion 2 of the outer cylinder 1 to the backing member 4
Through the insertion hole 13c of the ironing member 13 and can be inserted into and removed from the inner cylinder 10.

The brush 23 is squeezed by the squeezing piece 13b when passing through the insertion hole 13c. The diameter of the insertion hole 13c (hereinafter referred to as the diaphragm diameter) is variable, and the squeezing strength of the brush 23 can be changed.

That is, FIG. 1A shows a state in which the drawing diameter of the insertion hole 13c is made small and the squeezing strength is made strong, and when the inner cylinder 10 is raised above this state, the backing member 4 causes the squeezing member. The ironing piece 13b of 13 strongly hits, and as shown in FIG. 1 (B), the ironing piece 13b of the ironing member 13 elastically bends to increase the inclination angle, and the aperture diameter of the insertion hole 13c increases to increase the ironing strength. Weakens.

A cylindrical braking ring 3 is provided at the lower end of the outer cylinder 1.
0 is fitted and fixed. The braking ring 30 is made of resin and has elasticity, and a pair of arcuate elastic arms 31 are provided at the lower portion of the braking ring 30 at positions facing each other. The elastic arm 31 is elastically bendable in the radial direction, and has an inward engaging projection 32 at its tip.

A large number of vertical grooves 14 extending in the vertical direction are formed at equal intervals in the circumferential direction on the lower outer peripheral surface of the inner cylinder 10 below the spiral groove 11, and the elastic arms are provided in the vertical grooves 14. The engagement protrusion 32 of 31 is press-contacted and engaged. Flute 14
The bottom portion 15 on the lower side has a hexagonal column shape.

An operation knob 40A having a bottomed cylindrical shape is rotatably attached to the braking ring 30. Operation knob 4
A tubular portion 41 extends upward from the bottom of 0A, and the inside of the tubular portion 41 is a hole 42 having a hexagonal cross section. The bottom portion 15 of the inner cylinder 10 is inserted into the hole 42 so as to be vertically movable and not relatively rotatable. Therefore, when the operation knob 40A is rotated, the inner cylinder 10 is synchronously rotated. A predetermined gap is formed between the inner peripheral surface of the operation knob 40A and the elastic arm 31 so that the elastic arm 31 can elastically bend radially outward.

In the mascara applicator having the above-described structure, in order to adjust the squeezing strength, the diaphragm diameter of the squeezing member 13 can be changed by elastically bending the elastic arm 31 outwardly against its elasticity and engaging protrusions. While removing 32 from the vertical groove 14 of the inner cylinder 10, the operation knob 40A and the inner cylinder 10 are rotated. In other words, unless a force for elastically bending the elastic arm 31 outward is applied to the operation knob 40A, the inner cylinder 1
0 does not rotate.

Therefore, even if a small rotational force is transmitted to the operation knob 40A due to friction with something present in the surroundings while being carried, the operation knob 40A does not rotate with such a small force, and the diaphragm diameter of the ironing member 13 is reduced. Can be prevented from changing carelessly.

[Second Embodiment] Next, a mascara applicator according to a second invention will be described with reference to the drawings of FIGS. 4 to 8. In addition, about the same aspect part as the mascara applicator which concerns on the said 1st invention, the same code | symbol is attached | subjected and description is abbreviate | omitted.
Only the differences will be explained.

At the lower end of the outer cylinder 1 of this mascara applicator,
Instead of the braking ring 30, a tubular cam ring 50 is fitted and fixed. The lower inner peripheral surface of the cam ring 50 is a taper cam surface 51 that widens toward the end.

Further, a resin operation knob 40B having a bottomed cylindrical shape is attached to the cam ring 50. The inner diameter of the upper portion of the operation knob 40B is made slightly larger than the outer diameter of the lower portion of the outer cylinder 1, and the operation knob 40B is vertically movable and rotatable with respect to the outer cylinder 1 and the cam ring 50. . Annular stopper projections 43 and 52 are formed on the inner peripheral surface of the operation knob 40B and the outer peripheral surface of the cam ring 50, respectively, and the operation knob 40B cannot be detached from the cam ring 50 when these are engaged.

A pair of elastic arms 44 having an arcuate cross section extends upward from the bottom of the operation knob 40B, and the outer peripheral edge of the upper end thereof is in contact with the taper cam surface 51 of the cam ring 50. An engaging protrusion 45 is provided at the center of the upper inner peripheral surface of the elastic arm 44.
Is projected. As shown in FIGS. 4 and 5, when the stopper projection 43 of the operation knob 40B is engaged with the stopper projection 52 of the cam ring 50, the engagement projection 45 of the operation knob 40B is formed with the vertical groove 14 of the inner cylinder 10. The operation knob 40B is located outside the open portion and is not engaged with the vertical groove 14. At this time, the operation knob 40B is rotatable with respect to the inner cylinder 10.

When the operation knob 40B is lifted up from the outer cylinder 1 from this state, the elastic arm 44 is elastically bent inward at its tip by the cam action of the taper cam surface 51 of the cam ring 50. Then, the engagement protrusion 45 of the elastic arm 44 engages with the vertical groove 14 of the inner cylinder 10, and the operation knob 40
B and the inner cylinder 10 cannot rotate relative to each other. When the operation knob 40B is rotated while maintaining this state, the inner cylinder 10 can be rotated with respect to the outer cylinder 1, and the diaphragm diameter of the ironing member 13 can be adjusted.

As described above, in the mascara applicator according to the second aspect of the invention, in order to adjust the squeezing strength for the brush 23, the operation knob 40B must be rotated while being pushed. If the operation knob 40B is rotated without being pushed upward, the operation knob 40B only idles on the outside of the inner cylinder 10 and cannot rotate the inner cylinder 10.

Therefore, even if the operation knob 40B rotates due to friction with the surrounding objects while being carried, the rotation is not transmitted to the inner cylinder 10 and the diaphragm diameter of the ironing member 13 is changed carelessly. Can be blocked.

In the mascara applicator of the second invention, the outer cylinder 1 is provided with the window 5, and the scale displayed on the outer peripheral surface of the inner cylinder 10 can be seen from the window 5. There is.

[0033]

As described above, according to the present invention,
The inner cylinder does not rotate except when necessary, which prevents the diaphragm diameter of the ironing member from changing carelessly and prevents the ironing strength against the brush from changing carelessly. Played.

[Brief description of drawings]

FIG. 1A is an overall cross-sectional view of a mascara applicator according to a first aspect of the invention when the squeezing member has a reduced aperture diameter, and FIG. 1B is an upper cross-sectional view when the aperture diameter is increased. .

FIG. 2 is an enlarged sectional view of a lower portion of the mascara applicator according to the first invention.

3 is a cross-sectional view taken along the line I-I of FIG.

FIG. 4 is an overall cross-sectional view of the mascara applicator according to the second aspect of the present invention when the drawing diameter of the squeezing member is reduced.

FIG. 5 is an enlarged sectional view of the lower portion of the mascara applicator according to the second invention when the operation knob and the inner cylinder are in a disengaged state.

6 is a sectional view taken along line II-II of FIG.

FIG. 7 is an enlarged bottom cross-sectional view of the mascara applicator according to the second aspect of the present invention when the operation knob and the inner cylinder are in an engaged state.

8 is a sectional view taken along line III-III in FIG.

[Explanation of symbols]

1 outer cylinder 2 mouths 3a Spiral protrusion (screw mechanism) 10 inner cylinder 11 spiral groove (screw mechanism) 13 Ironing member 14 flutes 20 cap 22 Brush shaft 23 brushes 31 Elastic Arm 32 engagement protrusion 40A, B operation pick 44 elastic arm 45 engagement protrusion 51 Taper cam surface

Continuation of the front page (56) Bibliographic references Sho 58-177017 (JP, U) Actual opening 60-106515 (JP, U) Actual opening Sho 58-136014 (JP, U) Actual opening 61-6311 (JP , U) Actual development Sho 63-163711 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A45D 34/04 A45D 40/04 A45D 40/12 A45D 40/20

Claims (3)

(57) [Claims] 1. An inner cylinder containing a mascara is inserted into an outer cylinder, and the inner cylinder is rotated with respect to the outer cylinder by a screw mechanism provided between the inner surface of the outer cylinder and the outer surface of the inner cylinder. A brush shaft that is capable of moving up and down and that is capable of inserting and removing the inner cylinder from a cap that is screwed into the mouth portion of the upper end of the outer cylinder,
A brush squeezing and squeezing member provided at the tip of the brush shaft is provided at the upper end of the inner cylinder, and the diaphragm diameter of the squeezing member can be changed by moving the inner cylinder up and down with respect to the outer cylinder. In the mascara applicator capable of being formed, a plurality of vertical grooves extending in the up-down direction are provided on the lower outer peripheral surface of the inner cylinder, and the lower part of the outer cylinder is elastically bendable in the radial direction of the outer cylinder, and A mascara applicator, characterized in that an elastic arm for press-fitting engagement is provided. 2. An operation knob is rotatably attached to a lower portion of the outer cylinder, and the inner cylinder is vertically movable and non-rotatable with respect to the operation knob. Item 1. The mascara applicator according to item 1. 3. An inner cylinder for housing a mascara is inserted into an outer cylinder, and the inner cylinder is rotated with respect to the outer cylinder by a screw mechanism provided between the inner surface of the outer cylinder and the outer surface of the inner cylinder. A brush shaft that is capable of moving up and down and that is capable of inserting and removing the inner cylinder from a cap that is screwed into the mouth portion of the upper end of the outer cylinder,
A brush squeezing and squeezing member provided at the tip of the brush shaft is provided at the upper end of the inner cylinder, and the diaphragm diameter of the squeezing member can be changed by moving the inner cylinder up and down with respect to the outer cylinder. In the mascara applicator capable of being operated, an operating knob is attached to a lower portion of the outer cylinder so as to be vertically movable and rotatable with respect to the inner cylinder and the outer cylinder, and extends vertically in a lower outer peripheral surface of the inner cylinder. A plurality of vertical grooves are provided, and an elastic arm extends upward from the bottom of the operation knob. When the operation knob is pushed upward, the upper part of the elastic arm is moved by a taper cam surface annularly provided in the lower part of the outer cylinder. A mascara application characterized by elastically bending inward so that an engaging projection provided on the upper end of the elastic arm engages with a longitudinal groove of the inner cylinder, and the operation knob and the inner cylinder cannot rotate relative to each other. Ingredient