JPH0621585Y2 - Applicator - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) For applying cosmetics such as mascara, hair dye, eye shadow and lip color, writing materials such as ink and ink, and coating liquids such as adhesives. Regarding applicator.

(Prior Art) There are two viewpoints.

The first is an applicator including an applicator that projects from the tip of the barrel and a cap that prevents the applicator from protruding from the tip of the barrel when attached. Here, the application body is given an elastic force in the direction of protruding from the shaft cylinder, and by applying a cap, the application body can be retracted into the application liquid storage chamber against the elastic force ( (See Japanese Patent Application Laid-Open No. 62-79010), similarly, when an elastic force is applied to the application body in a direction projecting from the shaft cylinder and a cap is attached, the application liquid is applied to the application liquid against the elastic force. It is designed so that it can be retracted into the storage chamber, but when the coating liquid has been consumed and is running low,
A soft shaft cylinder that can be pressed is provided so that the coating liquid can be sufficiently adhered to the coating body (JP-A-59-13501).
No. 1), the rotary feeding mechanism is utilized so that the applicator can be arbitrarily withdrawn and retracted from the shaft cylinder without the cap, instead of interlocking the attachment and detachment of the cap and the withdrawal of the applicator from the shaft cylinder. (See Japanese Utility Model Publication No. 63-11367, etc.)
and so on.

The second is an applicator having a piston advancing mechanism in which the rear end of the coating liquid storage chamber inside the shaft cylinder is formed of a piston, and the coating liquid is discharged by the capacity reduction of the storage chamber due to the advance of the piston. When the piston is advanced, the pressing force is not directly applied to the piston, but a pressing force is applied to the pressing member arranged so as to be movable back and forth, and the longitudinal movement of the pressing member is rotated at a predetermined angle of the rotating member. And further, the rotational movement of the rotary member is converted into the forward movement of the piston so as to advance the piston by a fixed amount. Examples thereof are found in JP-A-60-115493 and JP-A-60-116495.

(Problems to be Solved by the Invention) In the above-mentioned first one, the applicator which can be retracted from the shaft cylinder by the attachment / detachment operation of the cap has an advantage of being easy to handle during use. In addition, it is extremely preferable that a sufficient amount of the coating liquid can be attached to the coating body when the coating liquid is consumed and becomes small. However, if it is necessary to press the container for that purpose, the above-mentioned advantage of breakage cannot be fully utilized. In this respect,
Attention is paid to the utilization of the coating liquid deriving mechanism in the second one. Compared with container pressing, for example, the rear end of the shaft cylinder can be pressed, which is an easy and speedy operation, and the amount of applied liquid can be quantified. But,
However, it is not sufficient in that the coating liquid has to be discharged.

From this point of view, the present invention is based on the above-mentioned first and second aspects.
It is intended to provide an applicator which can efficiently supply the application liquid to the application body by simply connecting and disconnecting the cap and the cap.

(Means for Solving the Problem) The shaft cylinder is formed to extend rearward as a storage chamber for the applicator together with the storage chamber for the applicator. The storage chamber and the storage chamber communicate with each other through the outlet of the coating liquid. Then, the pressing member of the piston advancing mechanism described above is extended forward in the accommodation chamber. This pressing member serves as an application body, in other words, the application body serves as a pressing member in the piston advancing mechanism. Therefore, an application portion is provided at the tip of the pressing member. That is, the present invention provides an applicator having an applicator portion protruding and retracting from the tip of the barrel,
A coating tool having a cap that prevents the coating part of the coating body from protruding from the tip of the barrel when it is attached, and the rear end of the coating liquid storage chamber inside the barrel is formed by a piston. An applicator having a piston advancing mechanism, wherein the application liquid is derived by reducing the volume of the storage chamber due to the advancing of the piston, and when the piston is advanced, the pressing force is not directly applied to the piston. , A pressing force is applied to the pressing member arranged so as to be movable back and forth, the longitudinal motion of the pressing member is converted into the rotational motion of the rotating member at a predetermined angle, and the rotational motion of the rotating member is converted into the forward motion of the piston. By converting the piston, the piston is moved forward by a fixed amount; here, the shaft cylinder is formed with a reservoir for the coating liquid and a rearward extending chamber for the coating body. , The storage chamber and the storage chamber are communicated with each other through a coating liquid outlet, and the pressing member in the piston advancing mechanism extends forward in the storage chamber, and the coating portion is provided at the tip of the pressing member. The main point is the applicator.

(Embodiment) A first embodiment is shown in FIGS. 1 to 4 attached.

First, in FIG. 1 showing a non-use state and FIG. 2 showing a use state, reference numeral 1 is a shaft cylinder, and a small hole 2 is provided near the front end.
A pipe body 2 having a hole a is fixed in the front and rear and arranged inside the barrel 1. The outside of the pipe body 2 is a storage chamber 3 for the coating liquid, and the inside is a housing for the coating body 4. It has become room 5. Here, the applicator 4 of this example includes a tip body 4a that seals the open end 1a of the barrel 1 and an applicator portion 4b such as a brush or sponge (the drawing is drawn with the brush in mind). 4c, and is urged forward by a spring 6 arranged between the collar portion 4d provided on the rod 4c and the tail plug 1b of the barrel 1.

Further, reference numeral 7 is a cap screwed to the barrel 1, and when applied, the applicator 4 is retracted against the force of the spring 6 so that the front body 4a of the applicator 4 is opened in the barrel 1. Contact the end 1a.

In this way, the application body 4 moves forward by the spring 6 when the cap 7 is removed, and moves backward when the cap 7 is attached. In response to this movement, the piston 8 that forms the rear end of the application liquid storage chamber 3 is formed. Will move forward and this will be described below.

A pin 9 is attached to the rod 4c of the applicator 4 (formed in the figure at the collar 4d). The pin 9 is fitted in a groove 2b formed in the rear portion of the pipe body 2 and further in a groove 10a (omitted in the drawing and described later in detail) of the rotary body 10 outside the pipe body 2.

The rotating body 10 is mounted so as to rotate with respect to the shaft cylinder 1 but its forward and backward movement is restricted, and a male screw portion 10b is formed so as to be screwed with the piston rod 11 arranged on the outside. .

This piston rod 11 has a groove 1 formed on the inner wall of the barrel 1.
Rotation with respect to the barrel 1 is regulated by fitting a part of it into c, and therefore, when the rotating body 10 rotates, the screwing positional relationship between the two changes, and the body moves forward accordingly.

3 and 4 are for explaining the rotating body 10 here in more detail. FIG. 3 shows a portion corresponding to the upper half of the rotating body 10 shown in FIGS. 1 and 2, to be precise, it is a non-linear I-I line sectional view in FIG. The figure shows a developed rotary body 10 which is a tubular body as a whole, and is viewed from the inside of the shaft tube 1 in FIGS. 1 and 2 (in FIG. 3, the view is from below). ) Is shown. That is, on the inner surface of the rotating body 10, substantially triangular projections 10c and 10d, which are formed in the same number (six in FIG. 4) from both the front and rear,
The tips that are gradually sharpened and made elastic are located near the bases of the opposing projecting pieces 10d and 10c.

Although shown in a circle in FIG. 4, the pin 9 is fitted into the groove 10a of the rotating body 10 and moves, and as shown by solid line and dotted line arrows, the pin 9 faces the traveling direction. 10c
The traveling direction is changed by the side wall of (10d), and similarly, as it approaches the vicinity of the tip of the projecting piece 10d (10c) in the traveling direction, the projecting piece 10d (is released so as to release the division of the groove 10a by the projecting piece 10d (10c). 10c) is elastically deformed. As a result, the pin 9 tries to move in a zigzag manner, but as described above, since the pin 9 is fitted in the groove 2b of the pipe body 2 fixed to the shaft cylinder 1, eventually, It only moves back and forth, and instead, the rotating body 10 rotates.

By the way, as can be seen by observing the positions of the three circles of the solid line and the dotted line, the rotating body 10 is rotated by the forward and backward movements of the pin 9. The amount of the coating liquid on the coating body 4 decreases due to use, and if the coating liquid is not supplied to the coating body 4 as it is, the coating liquid on the coating body 4 dries faster when the non-use state continues, and a new one is used each time. The coating liquid is desired to be delivered to the coating body 4, and these are eclectic. However, if the shapes of the convex pieces 10c and 10d are changed, the coating liquid is applied only when the coating body 4 moves forward or when it moves backward. It will be readily understood that the liquid can be allowed to drain.

The reference numeral 2c indicates the backward movement of the coating liquid led out into the storage chamber 5 of the coating body 4 (although it basically does not occur if the used amount and the derived amount of the coating liquid are associated with each other). The inward convex portion formed on the pipe body 2 for preventing the same, 4e,
The rod 4c of the applicator 4 for determining the forward position of the applicator 4
The outer convex portion 7a formed on the outer peripheral surface of the shaft 7 is a cylindrical porous porous elastic member arranged on the cap 7 considering that the front end portion of the shaft cylinder 1 and the front body 4a of the coating body 4 may be contaminated with the coating liquid. It is a body stain remover.

Next, FIG. 5 and FIG. 6 show a second embodiment. Although the same reference numerals are basically attached to the same parts as in the previous example, the present example is different from the previous example in the following three points.

First, the biggest difference is the coated body 4 in the previous example.
The one corresponding to the rod 4c is designed to be extendable. That is, the rear portion of the applicator 4 is the support 4f of the applicator 4b, the rear end bulge 4g fixed to the support 4f,
The support 4f, an outer cylinder 4h fitted outside the rear end bulge 4g, and a spring 4i arranged between the rear end of the support 4f and the rear end of the inner wall of the outer cylinder 4h. There is.
The elastic constant of the spring 4i is the same as that of the spring 6 described above.
Therefore, when the cap 7 is removed, the applicator body 4 advances due to the expansion of the spring 6, and then the rear end bulging body 4g is expanded by the extension of the spring 4i. Move forward until it contacts 4h.

For example, depending on the type of applicator, such as mascara, it is desired to move the applicator body forward. On the other hand, it may not be possible to cover the amount of advance with only one spring. According to this example, the structure becomes complicated, but the amount of advance of the coating body can be made larger than that of the previous example.

Also, the second and third points of difference are that instead of mounting a separate product as the pin 9'in the previous example as the pin 9 ', an integrated product is used, and likewise for preventing backward movement of the coating liquid. Instead of the inward projection 2c formed on the pipe body 2,
This is because the outer convex portion 4e for determining the forward position of the applicator 4 has the same function. These are examples showing that appropriate portions may have appropriate positions, appropriate shapes, and appropriate numbers.

Next, FIGS. 7 to 10 show a third embodiment. First, the overall relationship of each member will be roughly described. The shaft cylinder is the front shaft 1
01 and a rear shaft 102, and a connecting shaft 103 connecting the front shaft 101 and the rear shaft 102. Further, reference numeral 10
A rod 105 having an outer convex portion 105a in the center and a bulging portion 105b gradually increasing in diameter toward the rear is attached to the rear portion of the application portion (illustrated with a sponge in mind) shown in FIG. And the rear end of the bulge 105b and the rod 1
05 a first spring 107 between the rear spring receiving member 106 and a second spring 108 between the rear end of the spring receiving member 106 and the rear end of the inner wall of the rear shaft 102.
But each is arranged.

Further, at the outer front end of the spring receiving member 106, the rear shaft 1
On the inner wall of 02, there is formed a protrusion 106a that fits into a groove (illustrated by a dotted line in FIG. 7) formed as a gap between the protrusions,
A rotor 109 (details of which will be described later) is urged rearward by a third spring 110 arranged between the rotor 106 and the connecting shaft 103 in front of the protrusion 106a. A piston rod 111 having a screw is screwed onto the connecting shaft 103. Reference numeral 112 is a piston, reference numeral 113 is a coating liquid storage chamber, reference numeral 114 is a pipe body having a slit 114a formed at its tip, and reference numeral 115 is a cap.

This example shows an example in which a mechanism other than the mechanism commonly used in all two examples is used in converting the back-and-forth movement of the applicator into a rotational movement and further converting this into a forward movement of the piston. Below, it demonstrates in detail including the relationship of each member.

The three springs 107, 108, 110 have the largest elastic constant of the spring 108. That is, when the cap 115 is removed, the spring 110
Is contracted to move the rotor 109 forward, the spring 108 is expanded, and then the spring 107 is expanded until it is regulated by the outer convex portion 105a.

Here, as shown in FIG. 8, the rotor 109 has a projection 109b whose rear end 109a is a unidirectional slope. Further, as shown in FIG. 9, the spring receiving member 10
6, the front end 106b of the projection 106a formed on the outer front end of 6,
And a protrusion 102a that forms a groove on the inner wall of the rear shaft 102.
The front end 102b is also a unidirectional slope.

Then, the protrusion 106a of the spring receiving member 106 is fitted in the groove between the protrusions 102a of the rear shaft 102 so as to be movable back and forth, and before the extension of the spring 108, the front end 106b of the protrusion 106a has the front end of the protrusion 102a. At a position slightly rearward of the rear end of the front end 102b, similarly, at the most extended position of the spring 108 (equal state with the force of the spring 110) or the state where the spring 110 contracts to the end, the front end 106b of the protrusion 106a.
The size and the amount of back and forth movement are set so that the rear end is located slightly forward of the front end 102b of the protrusion 102a. The rotor 109 makes a rotary motion as a whole while sliding or moving back and forth on the slope according to the back and forth motion of the spring receiving member 106.

On the other hand, the piston rod 111 not only has the male screw portion 111a for screwing with the connecting groove 103 on the outer surface as described above, but also has the irregularity within the range where this screwing is not hindered. The cage (see FIG. 10) is fitted into the deformed inner hole 109c of the rotor 109. Therefore, when the rotor 109 rotates, its movement is transmitted as a forward movement of the piston rod.

Further, other points shown in this example will be described.

First, in this example, unlike the cases of the previous two examples, the front body 4a of the application body is not attached. With the apex 4a, the coating liquid can be drawn out by pressing the apex 4a somewhere independently of attachment / detachment of the cap so as not to stain the pressed part. This is suitable for those that want to control the amount of coating liquid used, such as mascara, in an extremely minute range. However, on the other hand, if the tip of the applicator is not used as the applicator, the use angle will be greatly restricted. This example takes this point into consideration. Although a hole is formed at the front end of the application section 104, in the case of this example in which a soft sponge is taken into consideration, the application section 104 should be prevented from being damaged or deformed as much as possible. Is because it is preferable that the cap 115 is not brought into direct contact with the coating portion.

Further, the reason why the barrel is composed of a plurality of parts such as the front shaft 101 and the rear shaft 102 is for assembly reasons, but in addition, it may be considered to be a cartridge. That is, if the front shaft 101 is detachably attached to the connecting shaft 103, it can be replaced after the coating liquid is consumed.

As described above, three examples have been described, but various other methods are possible.
For example, the opening end of the shaft cylinder is shown as having a diameter smaller than the diameter of the coating portion, but this is one in which if the coating liquid is excessively drawn to the coating portion, it is squeezed and the coating portion is made of ceramic. In the case of a hard material such as a porous body, the opening diameter should be large. Further, although the accommodating chamber for the applicator and the accumulating chamber for the coating liquid are formed by the pipe body, the accommodating chamber and the accumulating chamber do not necessarily have to be in a coaxial relationship, and therefore, even a simple plate-shaped accommodating chamber The storage chamber may be partitioned off, and the barrel may integrally have a partition wall. Further, although the storage chamber and the storage chamber are communicated with each other through the small hole 2a and the slit 114a, they can be communicated with each other by forming a groove in the shaft cylinder inner hole. In addition, the presence of the spring ensures that unwanted application body advance is suppressed.
Although the cap is screwed to the shaft tube, it is not impossible that the cap is attached by press fitting, fitting with concavities and the like. In addition, the reason why the applicator is positively moved forward by the spring is to ensure stability during use.However, as the cap and applicator are screwed together or press-fitted, the force to remove the cap is applied. You can also make the body move forward. Furthermore, although the cap is separable from both the barrel and the applicator, the cap may be detachable from the applicator. In the first and second embodiments, the front body 4a is rotatable with respect to the other parts of the coating body, and the front body is screwed into the barrel.

(Effect of the device) With the applicator of the present invention, the back and forth movement of the applicator causes
Since the rotating member rotates, the piston moves forward, and the coating liquid is discharged, the handling during use is extremely simple. This is also because the desired amount of the coating liquid can be quantitatively derived to the coating body even if the coating body is consumed and becomes small.

[Brief description of drawings]

1 to 4 show the first embodiment, FIG. 1 is a sectional view in a non-use state, FIG. 2 is a sectional view in a use state, and FIG. 3 is a partial sectional view of a rotating body, FIG. 4 is a development view of the rotating body. Further, FIGS. 5 and 6 show a second embodiment, FIG. 5 is a sectional view in a non-use state, and FIG. 6 is a sectional view in a use state. Further, FIGS. 7 to 10 show a third embodiment, FIG. 7 is a sectional view in a non-use state, FIG. 8 is a perspective view of a rotor, FIG. 9 is an operation explanatory view, and FIG. The figure is a left side view of the piston rod. 1 ... Shaft cylinder, 1a ... Open end, 2 ... Pipe body, 2a ... Small hole,
2b ... grooves, 2c ... inward projections, 3 ... coating liquid storage chamber, 4 ... coating body, 4a ... front body, 4b ... coating portion, 4c ... rod body, 4d ...
Collar part, 4e ... Outer convex part, 4f ... Support body, 4g ... Rear end swelling body, 4h ... Outer cylinder body, 4i ... Spring, 5 ... Application body accommodating part, 6 ... Spring, 7 ... Cap, 7a ... Dirt remover, 8 ... Piston, 9, 9 '... Pin, 10 ... Rotating body, 1
0a ... Groove, 10b ... Male screw part, 10c, 10d ... Convex piece,
11 ... Piston rod, 101 ... Front shaft, 102 ... Rear shaft,
Reference numeral 102a ... Protrusion, 102b ... Protrusion front end, 103 ... Connection shaft, 104 ... Application portion, 105 ... Rod, 105a ... Outer convex portion, 105b ... Swelling portion, 106 ... Spring receiving member, 1
06a ... Protrusion, 106b ... Protrusion front end, 107 ... Spring, 108 ... Spring, 109 ... Rotor, 109a ...
Rear end, 109b ... Protrusion, 109c ... Deformed inner hole, 110 ...
Spring, 111 ... Piston rod, 111a ... Male screw part, 112 ... Piston, 113 ... Coating liquid storage chamber, 11
4 ... Pipe body, 114a ... Slit, 115 ... Cap.

Claims (1)

[Scope of utility model registration request] 1. An applicator comprising an applicator having an applicator that projects from the tip of a barrel and a cap that prevents the applicator of the applicator from protruding from the tip of the barrel when attached. An applicator having a piston advancing mechanism, in which the rear end of the coating liquid storage chamber inside the shaft cylinder is formed of a piston, and the coating liquid is discharged by the volume reduction of the storage chamber due to the advance of the piston. Therefore, when advancing the piston, instead of directly applying a pressing force to the piston, a pressing force is applied to the pressing member that is arranged so that it can move back and forth, and the back-and-forth motion of this pressing member is rotated by a predetermined angle of the rotating member. By converting the rotary motion of the rotary member into the forward motion of the piston, the piston is moved forward by a fixed amount; in this case; Room and In the meantime, a chamber extending rearward is formed as a storage chamber for the application body, and the storage chamber and the storage chamber are communicated with each other through the outlet of the coating liquid, and the pressing member in the piston advancing mechanism in the storage chamber. An applicator comprising a pressing member extending forward, and the applying portion provided at the tip of the pressing member.