KR100971492B1 - Applicator device - Google Patents

Abstract

The invention concerns an applicator device comprising a casing (10) and an application means (18). In accordance with the invention it is provided that the application means is displaceable with respect to the casing against a return force.

Description

Applicator device

The present invention relates to a coating apparatus comprising a casing and application means.

Coating apparatuses of this kind are well known. The application devices are provided with, for example, a ballpoint pen. If the application device is used for a substrate that is easily replaceable within the application surface, conventional application devices are not suitable for application on it. This is because the folds rise upwards, ie the raised portions are located outside the face of the substrate. The difficulty in producing the coating material on these substrates

Difficulties in bringing about uniform application, such as, for example, a line of constant width on such a substrate, are similarly high as in the case of substrates organized from the offset in a visually perceptible manner. .

It is an object of the present invention to improve upon the conventional application apparatus described above at the introduction of the present specification, and thus to make it suitable for organized substrates as well as substrates that are replaceable within the application plane.

According to the present invention, in the conventional application apparatus described above at the introduction of the present specification, the above object is achieved by allowing the application means to be replaceable with respect to the casing in a direction opposite to the return force.

It especially includes a cosmetic application device.

When the application device according to the invention is applied to a surface of an easily movable substrate such as skin or fabric, the application means does not require cooperative participation of the person guiding the application device in the axial direction. Can rebound elastically in the

In particular, when used on the skin, this has the advantage that the male or female user still needs to concentrate only on positioning within the face of the skin.

Moreover, when used in close proximity to the eyes, the risk of injury is minimized.

When attempting to produce a line of constant thickness on a textured substrate such as, for example, woven fabric or crepe paper, the application device according to the invention can be guided at a constant interval less than the set spring displacement.

Because of this elastically repulsive nature, the application device provides automatic correction for the application surface-casing displacement, thus ensuring a line of constant width.

Moreover, the repulsive arrangement reduces or eliminates the risk of folds or wrinkles formed, because the force in the application direction is minimized by bending the application means.

In situations involving the application of the product to the skin, a substantially automatic mechanism is provided wherein the pressure of the application means on the skin is approximately constant at all times and relative to the surface of the skin within the adjustment range for the spring effect. This results in an advantage independent of the spacing of the casing.

The user is also not limited in keeping the casing-skin spacing precisely and can ensure that the desired line thickness is made constant.

Within a relatively wide range, the mechanism of its substantially automatic control can be adjusted by the maximum free displacement and appropriate adjustment of the effective spring constant.

In such a manner, it is possible to easily provide adaptation to the properties of the assembled and / or easily movable substrate with respect to the length of the spring displacement.

Among the preferred features of the invention, the application means is movable relative to the casing between 0.05 mm and 10 mm, preferably between 0.05 mm and 2 mm, more preferably between 0.2 mm and 0.5 mm.

Among more preferred features of the invention, the return force is between 0.03 N, preferably between 0.03 N and 10 N, more preferably between 0.03 N and 0.5 N. In an even more preferred feature of the invention, the application means comprises a ball and the ratio of the return force to the equator cross-sectional area of the ball is between 4 Pa and 6 GPa, preferably between 40 Pa and 1 GPa, more preferably 10 kPa. To 7 MPa.

According to an embodiment of the present invention, at least one elastic member is provided to generate the return force.

Among more preferred features, the elastic member is a spring.

According to the invention, a particularly simple and more preferred embodiment is that the elastic member is a coil spring.

According to the present invention, it is preferable that the elastic member is made of a polymer material.

This is because the elastic member is particularly simple and inexpensive to manufacture.

Moreover, it is light.

According to a particularly preferred embodiment of the invention, the application device comprises storage means for the product to be applied, the elastic device being included in the lifting pressure-generating device and the storage means for generating the rising pressure in the storage means. It is suitable for applying pressure with its elastic return force in the opposite direction of the boundary means.

On the other hand, there are two kinds of objectives: one is elastic biasing of the applicator means against axial movement with respect to the casing, and the other is the development of an elevated pressure in the storage means. .

It reduces the total number of individual parts, which simplifies the application means as a whole.

According to a further preferred feature of the invention, the pressure-generating device is adjustable in the detection of the pressure deceleration in the storage means.

Such a drop in pressure may include a relaxation of the load on the elastic device, which in turn makes it possible to use a polymer material for the elastic device with the advantages already described above.

According to a further preferred embodiment of the invention, the lifting pressure-generating means comprises a conveying means having at least one female thread member and at least one male thread member, the conveying means having at least two operating states, ie The two threaded members may have a first operating state that engages each other, and a second operating state that does not engage each other, thereby causing a decrease in the rising pressure to generate the elevated pressure.

In other words, according to this preferred embodiment of the present invention, the two threaded members are connected together to generate the lifting pressure and are disconnected to reduce the pressure in the storage means.

Thus, it has a solution which is particularly simple in terms of structure, inexpensive and easy to handle.

It may occur that the user of the application device forgets to decrease the pressure in the storage means after the application is complete.

In such a case, under some circumstances, the applied product may be damaged in the storage means.

In addition, we cannot be sure that the product will not leak.

According to a particularly preferred embodiment of the invention, the applicator can have at least two operating states, i. E. A stationary state and a used state, and is provided with means for reducing the pressure in the storage means, the pressure The reducing means is corresponding to the movement of the application device from the use state to the stationary state.

In other words, this shape of the invention is automatically reduced as soon as the pressure in the storage means is placed in the stationary state after the application device-after its work is completed.

In that regard, the application device may be defined to be converted from the use state to the stationary state by tightening the cap.

Instead of tightening the outside of the cap, the cap can also be fitted thereon and secured using a protrusion connection.

Thus, it practically embodies the 'automatic' mechanism.

1 is a longitudinal sectional view of a pencil according to a particularly preferred embodiment of the present invention;

2 is a partial cross-sectional view showing a plunger of the pencil of FIG.

3 is a partial cross-sectional view showing an adjusting push rod of the pencil of FIG.

4 is a diagram showing a lid or cartridge casing portion of the pencil of FIG. 1, FIG.

5 and 6 are diagrams showing a cross section of the front portion of the pencil of Figure 1 and the cap for the pencil,

7 to 9 are cross-sectional views illustrating front and rear portions of the pencil of FIG. 1 in different operating states, respectively.

The present invention is described below in more detail with reference to the accompanying drawings, preferred embodiments of the present invention.

1 is a longitudinal cross-sectional view of a pencil according to a particularly preferred embodiment of the present invention, FIG. 2 is a partial cross-sectional view showing a plunger of the pencil of FIG. 1, FIG. 3 is a partial cross-sectional view showing an adjustable push rod of the pencil of FIG. 4 is a diagram showing a lead or cartridge casing portion of the pencil of FIG. 1, FIG. 5 and FIG. 6 are diagrams showing a cross section of the front portion of the pencil of FIG. 1 and the cap for the pencil, Figures 7 to 9 are different It is sectional drawing which shows the front part and back part of the said pencil of FIG. 1 in an operating state, respectively.

Referring to FIG. 1, the pencil has an outer shaft 10, the outer shaft 10 assists in the casing, and the cap 12 can be screwed outward.

For that reason, the thread identified by reference numeral 14 is provided.

The cap 12 includes a seal 16 that encloses the tip 18 of the pencil in a closed state.

The ball 20 is received at the free end of the tip 18.

A tooth row 19 of the cap 12 and a ring of teeth 21 of the pencil connect the cap 12 circumferentially toward the tip 18 when screwed in. Play a role.

At its end portion spaced from the ball 20, the tip 18 is fitted to a lead or cartridge casing 22.

In that area, the tip 18 has a circular inner contour, and the casing portion 22 also has a circular outer contour, and thus a sleeping clutch is clutched.

The inner space of the casing portion 22 forms a storage means 24 for the ink 26.

The side spaced apart from the ball serves as a closure mass and seals the external atmosphere.

The rear boundary of the storage means 24 is formed by the plunger 30.

The control push rod 34 protrudes into the plunger 30.

The spring 36 presses in the opposite direction of the control pushrod 34 on the one hand and in the opposite direction of the closing cap 38 on the other hand.

The spring 36 is a polymer spring.

It may also be a metal or other suitable material.

As shown in FIG. 2, the plunger 30 is variable with respect to its length such that the plunger 30 is formed with a helical incision 40.

As a result it represents a trailing plunger.

At its end spaced apart from the tip 18, the plunger 30 includes protrusions 44 and 46, which project within the casing portion 22 for rotational connection purposes. Engage inward corresponding to the log.

Thus, the plunger 30 is rotatably connected to the casing portion 22, but is accommodated therein axially sliding therein.

In addition, at its end spaced apart from the tip 18, the plunger 30 has two substantially hemispherical female thread members formed therein, denoted by reference numeral 48, and sometimes the control pushrod 34. ) To connect to.

The control push rod 34 is provided with a male thread member complementary to the female thread member 48, one of which is indicated by reference numeral 50, for example.

The male threaded members 50 correspond to segments of the helical groove, each spanning an angle slightly greater than 300 °.

They are blocked by longitudinal grooves 52 that extend at an angle of about 27 °.

At its end spaced apart from the tip 18, the control pushrod 34 is provided with protrusions 54, 56, 58 and 60, correspondingly within the outer shaft 10 for rotational connection purposes. To the inner side.

However, the control pushrod 34 may slide axially with respect to the outer shaft 10 between the closure cap 38 and the projection 62 (see FIGS. 8 and 9).

The function of the pencil shown in the figure is as follows.

When the cap 12 is tightened over the outer shaft 10, the female threaded members 48 are in the groove 52.

Thus, in its operating position, no connection is made between the control pushrod 34 and the plunger 30.

The plunger 30 thus does not apply any pressure to the closure mass 28 or the ink 26.

This is important for inks and / or closed masses that are adversely affected by permanent pressure.

When the cap 12 is tightened above the outer shaft 10, the spring 36 is released from pressure.

Thus, it is possible to use polymer springs.

Moreover, when using polymer springs, constant pressure will cause material fatigue.

When the cap 12 is rotated about the outer shaft to release it, the tip 18 also rotates due to the rotational connection between the tooth row 19 and the tooth ring 21.

Thus, the plunger 30 also rotates.

In further courses of the rotational movement, the female threaded member 48 leaves the groove 52 and passes into the male threaded member 50.

Further rotational movement in such a state causes the female threaded member 48 to move along the male threaded member 50 such that the control pushrod 34, which has been supported in the opposite direction of the protrusion 62 so far, It is moved in the opposite direction of the spring 36.

It is just that the spring 36 is pressed.

As a result, the elastic return force of the spring 36 acts on the plunger 30 using the control pushrod 34, whereby the pressure in the storage means 24 rises.

Finally, the male threaded member 50 is limited by a stopper 64 which the female threaded member 48 encounters with further rotational movement.

Even if the rotational movement continues, the slippery clutch formed between the casing portion 22 and the tip 18 slips so that the pressure in the storage means 24 no longer rises.

Thus, it is approximately soft for pressure sensitive inks.

The elevated pressure currently enhanced in the storage means 24 can be used to eject the ink 26.

After use of the pencil, when the cap 12 is tightened again on the outer shaft 10, the female threaded member 48 travels back to the groove 52 along the male threaded member 50. This is due to the coupling effect described above.

As a result, under the influence of the spring 36, the control pushrod 34 moves back towards the protrusion 62 on which it is supported.

Thus, the spring 36 no longer acts on the ink 26 using the plunger 30.

In such a state, no upward pressure is effectively present in the storage means 24, which is advantageous in terms of the protection of the ink 26 and in terms of anti-leakage protection.

In addition, the spring 36 is also protected.

When the cap 12 is tightened to the outer shaft 10, the plunger 30 moves away from the ball 20, which causes the female threaded member 48 to move into the groove 52. Until.

In such a situation, in order to prevent the plunger 30 from sucking the ink 26 outside of the tip 18, the plunger 30 is formed with a spiral incision 40 and as a result In the form of a trailing plunger.

More particularly, the length will rise in such a situation.

Instead of the thread 40, it is also possible to provide a protruding connection for the cap 12 to the outer shaft 10.

In such a case, under some circumstances, the contact can be used to limit the upward pressure, which means that the angle at which the two parts connected together can be rotated relative to each other when the projecting connection is included, This is because the case is limited.

For the purpose of pressure limitation, when the cap 12 is fastened to the outer shaft 10, the tooth rows 19 are only over the portion of the axial travel of the cap 12. It is further possible to be provided to engage the tooth ring 21.

The rotational conveying means shown in this figure may compensate for the reduction of the filling level in the storage means 24.

Moreover, with decreasing filling height, the plunger 30 gradually moves into the storage means 24, while the control pushrod 34 is associated with the spring 36 in accordance with the filling height. Its position does not change, and for that reason it is always possible to generate the upward pressure with the same return force.

The springing of the tip 18 in the axial direction with respect to the outer shaft 10 is described as follows.

7 shows the operating state in which the cap 12 is not fastened, so the pencil is ready for use.

In particular, the control pushrod 34 is connected to the plunger 30, the spring 36 is subjected to a deformation force, and a corresponding pressure is applied in the storage means 24.

However, from the tip 18 there is still no axial force acting on the tip 18.

FIG. 8 shows an operating state different from that shown in FIG. 7 in which a weak axial force acts on the tip 18.

As a result, the tip 18 is moved in the axial direction with respect to the outer shaft 10.

As the tip 18 is connected in the axial direction with respect to the casing part 22, the casing part 22 is also moved in the axial direction with respect to the outer shaft 10.

Since the casing portion 22 is connected to the control push rod 34 by using the thread members 48 and 50, the control push rod 34 is also moved, and further, the spring of the spring 36 It is moved toward the elastic return force.

Thus, the elastic return force acts in the opposite direction to the axial displacement of the tip 18 with respect to the outer shaft 10.

Thus, the tip 18 springs up.

9 shows the operating state in which the tip 18 is moved axially with respect to the outer shaft 10.

Such a state is reached when the casing portion 22 encounters the abutment 66.

The abutment 66 includes an adjacent ring 68 that is axially immovably received within the outer shaft 10.

The side of the adjacent ring 68 opposite to the abutment 66 serves as a contact for the control pushrod 34 instead of the protrusion 62.

In a particularly preferred embodiment of the invention as shown in the figure, the polymer spring 36 serves two purposes simultaneously. That is to say, on the one hand, an upward pressure is generated in the storage means 24, and on the other hand, the tip 18 is springed up in the axial direction with respect to the outer shaft 10.

While the invention has been shown and described with respect to particular embodiments, those skilled in the art will recognize that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the appended claims. Anyone can easily know.

Claims (20)

In the coating device comprising an outer shaft 10 and the application means, The application means is movable relative to the outer shaft 10 in a direction opposite to the return force, At least one elastic member for generating the return force, The storage means 24 for the product to be applied and the pressure return with its elastic return force in the opposite direction of the plunger of the storage means 24 which are included in the rising pressure-generating device and which generate the rising pressure in the storage means 24. And said elastic member suitable for application. The method of claim 1, And said applying means is movable relative to said outer shaft (10) between 0.05 mm and 10 mm. The method according to claim 1 or 2, And the return force is between 0.03 N and 50 N. 16. The method of claim 1, The applicator is provided with a ball (20), wherein the ratio of the return force of the ball (20) and the cross-sectional area near the equator of the ball (20) is 4 Pa to 6 GPa. delete The method of claim 1, And the elastic member is a spring. The method of claim 1, And the elastic member is a coil spring. The method of claim 1, And the elastic member is a polymer material. delete The method of claim 1, The raising pressure-generating device is characterized in that the controllable detection of a pressure drop in the storage means (24). The method of claim 1, The lifting pressure-generating means comprises a conveying means having at least one female threaded member 48 and at least one male threaded member 50, the conveying means having at least two or more operating states, i.e., the elevated pressure. Wherein the two threaded members 48, 50 are in a first operating state in which they are engaged with each other, and in a second operating state that results in a reduction in the rising pressure, because they are not in engagement with each other. . The method of claim 1, The applicator has resting conditions and use conditions that are at least two operating states, and pressure-reducing means for reducing the pressure in the storage means 24 as the applicator moves from the use conditions to the rest conditions. Applicator characterized in that it comprises a. The method of claim 12, Applicator characterized in that the conversion from the use condition to the rest condition by tightening the cap (12). The method of claim 12, Applicator characterized in that it is changed from the use condition to the rest condition by fixing the cap using a bayonet connection. The method of claim 1, Said application means being movable relative to said outer shaft (10) between 0.05 mm and 2 mm. The method of claim 1, And said applying means is movable relative to said outer shaft (10) between 0.2 mm and 0.5 mm. The method according to claim 1 or 2, And the return force is between 0.03 N and 10 N. 16. The method according to claim 1 or 2, And the return force is between 0.03 N and 0.5 N. The method of claim 1, The applicator is provided with a ball (20), wherein the ratio of the return force of the ball (20) and the cross-sectional area near the equator of the ball (20) is 40 Pa to 1 GPa. The method of claim 1, The applicator is provided with a ball (20), wherein the ratio of the return force of the ball (20) and the cross-sectional area near the equator of the ball (20) is 10 kPa to 7 MPa.

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