WO2024010274A1

WO2024010274A1 - Nail art device

Info

Publication number: WO2024010274A1
Application number: PCT/KR2023/009001
Authority: WO
Inventors: 최병현
Original assignee: 주식회사 키닉스 테크놀로지
Priority date: 2022-07-05
Filing date: 2023-06-28
Publication date: 2024-01-11
Also published as: KR102470800B1; KR20240005564A

Abstract

Disclosed according to some embodiments of the present disclosure is a nail art device. The nail art device may comprise: a device base in which a first shaft hole is formed; a first shaft which is inserted into and disposed in the first shaft hole; and a tolerance elimination means which brings the outer surface of the first shaft and the inner surface of the first shaft hole into contact with each other in order to eliminate a tolerance between the size of the first shaft hole and the size of the first shaft.

Description

nail art device

The present disclosure relates to a nail art device, and specifically to a nail art device that enables stable sliding movement and design printing by eliminating tolerances.

Nail art is one of the beauty treatments that women can do simply and inexpensively when they want to improve their appearance or change their mood.

Typically, nail art involves people applying manicure to their nails by hand or drawing designs on their nails. Recently, as professional nail salons have become more popular, people who want to draw various and complex designs on their nails are visiting professional nail salons to get them done.

However, when a person does nail art by hand, the design may be drawn in an undesirable shape. In addition, it is not easy for busy modern people to take the time to visit a famous professional nail salon, and the cost can also be a burden.

Recently, nail printers have been developed, which generally print designs on nails by moving ink cartridges in a sliding manner. However, conventional nail printers have a problem in which designs are not properly printed on the nail due to the mechanical tolerance of the sliding structure.

The present disclosure aims to solve the above-described problems and other problems. The technical problem to be achieved by some embodiments of the present disclosure is to provide a nail art device that enables stable sliding movement and design printing by eliminating tolerances in the sliding structure.

The technical problems to be achieved in the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art of the present disclosure from the description below. There will be.

A nail art device according to some embodiments of the present disclosure includes: a device base on which a first shaft hole is formed; a first shaft inserted into and disposed in the first shaft hole; and tolerance removing means for bringing the outer surface of the first shaft and the inner surface of the first shaft hole into contact with each other to remove the tolerance between the size of the first shaft hole and the size of the first shaft.

According to some embodiments of the present disclosure, the tolerance removing means may include a support block disposed to protrude in an outward direction from a side of the device base.

According to some embodiments of the present disclosure, the support block may be inclined to form an acute angle in the second direction.

According to some embodiments of the present disclosure, with respect to the third direction, the support block and the first shaft hole are disposed at different positions on the device base, and with respect to the second direction, the first shaft The hole may be disposed on the device base on a side opposite to the second direction than the support block.

According to some embodiments of the present disclosure, the tolerance removing means may include a pressing pin contacting the support surface of the support block and the outer surface of the first shaft, respectively.

According to some embodiments of the present disclosure, the pressing pin includes: a first bent portion disposed at one end portion to be bent in a third direction and contacting an outer surface of the first shaft; and a second bent portion disposed in the central portion and bent in an opposite direction to the first bent portion, contacting the support surface of the support block, and pressing the outer surface of the first shaft to the inner surface of the first shaft hole. can do.

According to some embodiments of the present disclosure, the tolerance removing means may further include a first pin groove formed around the outer circumference of the first shaft and into which the first bent portion is inserted.

According to some embodiments of the present disclosure, a second shaft hole formed on a side of the device base; and a second shaft inserted into and disposed in the second shaft hole.

According to some embodiments of the present disclosure, with respect to the third direction, the support block and the second shaft hole are disposed at different positions on the device base, and with respect to the second direction, the second shaft The hole may be disposed on the device base on a side opposite to the second direction than the support block.

According to some embodiments of the present disclosure, the tolerance removing means contacts the outer surface of the second shaft and the inner surface of the second shaft hole with each other to remove the tolerance between the inner surface of the second shaft hole and the outer surface of the second shaft. You can do it.

According to some embodiments of the present disclosure, the pressing pin is formed at the other end to be bent in a direction opposite to the third direction, contacts the outer surface of the second shaft, and connects the outer surface of the second shaft to the second shaft. It may further include a third bent portion that presses into the inner surface of the hole.

According to some embodiments of the present disclosure, the tolerance removing means may further include a second pin groove formed around the outer circumference of the second shaft and into which the third bent portion is inserted.

According to some embodiments of the present disclosure, it further includes a receiving frame connected to the first shaft and coupled to the cartridge member, and a through hole through which the first shaft passes is formed on both sides of the receiving frame. , a tolerance removal pad disposed in contact with the receiving frame and the first shaft, and removing a tolerance between the size of the first shaft and the size of the through hole.

According to some embodiments of the present disclosure, an opening formed on an upper part of the receiving frame and connected to the through hole; and a seating groove formed to be recessed in an inner lower portion of the opening, wherein the tolerance removal pad is disposed in the seating groove, presses the first shaft in a third direction, and has a size and a size of the first shaft. Tolerances between the sizes of the through holes can be eliminated.

According to some embodiments of the present disclosure, the tolerance removal pad includes a pair of side pads in contact with the seating groove; and a center pad connected between the pair of side pads and in contact with the first shaft.

According to some embodiments of the present disclosure, a center bent portion may be formed at the lower portion of the center pad, and upper bent portions with an open upper portion and lower bent portions with an open lower portion may be alternately formed between the center pad and the side pad. there is.

The technical solutions obtainable from this disclosure are not limited to the solutions mentioned above, and other solutions not mentioned above will be clearly apparent to those skilled in the art from the description below. It will be understandable.

The effects of the nail art device according to the present disclosure will be described as follows.

By eliminating tolerances in the sliding structure by some embodiments of the present disclosure, the ink cartridge can move stably and thus maintain the quality of design printing on the nail.

The effects that can be obtained through the present disclosure are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description below. will be.

Various embodiments of the present disclosure are described with reference to the drawings, where like reference numerals are used to collectively refer to like elements. In the following examples, for purposes of explanation, numerous specific details are set forth to provide a thorough understanding of one or more embodiments. However, it will be clear that such embodiment(s) may be practiced without these specific details.

1 is a plan view for explaining a nail art device according to some embodiments of the present disclosure.

Figure 2 is a side view for explaining a nail art device according to some embodiments of the present disclosure.

Figure 3 is a bottom view for explaining a nail art device according to some embodiments of the present disclosure.

Figure 4 is a front view for explaining a nail art device according to some embodiments of the present disclosure.

Figure 5 is a perspective view for explaining a nail art device according to some embodiments of the present disclosure.

Figure 6 is a diagram showing the upper structure of a mobile unit according to some embodiments of the present disclosure.

Figure 7 is a diagram showing the coupling structure of a guide beam and a fastening ring according to some embodiments of the present disclosure.

Figure 8a is a one-side perspective view showing the lower structure of a mobile unit according to some embodiments of the present disclosure.

Figure 8b is a perspective view showing the lower structure of the mobile unit according to some embodiments of the present disclosure.

Figure 8c is a bottom view showing the lower structure with the moving block removed from the moving unit according to some embodiments of the present disclosure.

Figure 9A is a bottom view showing the structure of a means of transportation according to some embodiments of the present disclosure.

Figure 9b is a front view showing the structure of a means of transportation according to some embodiments of the present disclosure.

Figure 10 is a partially enlarged view showing the structure of a means of transportation according to some embodiments of the present disclosure.

Figure 11 is a diagram showing a tolerance removal means according to some embodiments of the present disclosure.

Figure 12 is a partial enlarged view showing the coupling structure between the link block and the receiving frame of the means of transportation according to some embodiments of the present disclosure.

FIG. 13A is a partial cross-sectional view taken along the line A-A shown in FIG. 1.

Figure 13b is a diagram showing a coupling structure between a tolerance removal pad and a receiving frame according to some embodiments of the present disclosure.

Figure 14 is a diagram showing movement of the receiving frame by a moving member according to some embodiments of the present disclosure.

FIG. 15A is a schematic diagram showing a first embodiment of a device casing in which a nail art device is embedded according to some embodiments of the present disclosure.

Figure 15b is a schematic diagram showing a state in which the lower casing is lowered from the inside of the upper casing to open the finger hole in the first embodiment of the device casing disclosed in Figure 15a.

Figure 15c is a schematic diagram showing the internal structure of the upper casing and the lower casing in which the nail art device is built according to some embodiments of the present disclosure.

FIG. 16A is a diagram showing a second embodiment of a device casing in which a nail art device is embedded according to some embodiments of the present disclosure.

FIG. 16B is a view showing a state in which the legs are unfolded in the leg receiving grooves in the second embodiment of the device casing disclosed in FIG. 16A.

Hereinafter, various embodiment(s) constituting the nail art device according to the present disclosure will be described in detail with reference to the drawings. However, regardless of the drawing numbers, identical or similar components are assigned the same reference numbers and overlapping descriptions thereof are provided. will be omitted.

The purpose and effects of the present disclosure, and technical configurations for achieving them, will become clear by referring to the embodiments described in detail below along with the accompanying drawings. In describing one or more embodiments of the present disclosure, if it is determined that a detailed description of related known technology may obscure the gist of at least one embodiment of the present disclosure, the detailed description will be omitted.

The terms in this disclosure are terms defined in consideration of the functions in this disclosure, and may vary depending on the intention or custom of the user or operator. In addition, the attached drawings are only intended to facilitate understanding of one or more embodiments of the present disclosure, and the technical idea of the present disclosure is not limited by the attached drawings, and all changes included in the spirit and technical scope of the present disclosure are not limited. , should be understood to include equivalents or substitutes.

The suffixes “module” and “part” for components used in the following description are given or used interchangeably only considering the ease of preparation of the present disclosure, and do not have distinct meanings or roles in themselves.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. Accordingly, the first component mentioned below may also be the second component within the technical spirit of the present disclosure.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

Singular expressions include plural expressions unless the context clearly dictates otherwise. That is, unless otherwise specified or clear from context to indicate a singular form, the singular in this disclosure and claims should generally be construed to mean “one or more.”

In the present disclosure, terms such as “comprising,” “includes,” or “have” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the present disclosure. It should be understood that this does not exclude in advance the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

In the present disclosure, the term “or” should be understood not as “or” in the exclusive sense but as “or” in the connotative sense. That is, unless otherwise specified or clear from context, “X utilizes A or B” is intended to mean one of the natural implicit substitutions. That is, either X uses A; X uses B; Or, if X uses both A and B, “X uses A or B” can apply to either of these cases. Additionally, the term “and/or” as used in this disclosure should be understood to refer to and include all possible combinations of one or more of the related listed items.

Unless otherwise defined, all terms (including technical and scientific terms) used in this disclosure may be used with meanings that can be commonly understood by those skilled in the art. Additionally, terms defined in commonly used dictionaries are not overly interpreted unless specifically defined.

However, the present disclosure is not limited to the embodiments disclosed below and may be implemented in various different forms. Only some embodiments of the present disclosure are provided to fully inform those skilled in the art of the present disclosure of the scope of the present disclosure, and the present disclosure is only defined by the scope of the claims. Therefore, the definition should be made based on the content throughout this disclosure.

1 to 14, the nail art device 100 according to an embodiment of the present disclosure includes a cartridge member 300, a moving member, a tolerance removal means 800, a tolerance removal pad 900, and an elevation member 700. ) may include.

Referring to Figures 1 to 5, an ink cartridge (not shown) can be detached from the cartridge member 300, and the cartridge member 300 includes a member body 340, a cartridge detachment groove 350, and a beam bracket 310. ), link groove 320, and cartridge hole 330.

The member body 340 may form the overall appearance of the cartridge member 300, and a cartridge detachment groove 350 through which an ink cartridge can be detached may be formed in the center of the member body 340.

A cartridge hole 330 may be formed in the lower part of the cartridge detachment groove 350, and the lower part of the ink cartridge may be exposed through the cartridge hole 330. When the user's nail is located at the bottom of the cartridge hole 330, the ink cartridge can print a design on the nail.

A plurality of beam brackets 310 may be arranged on the lower sides of the member body 340 at predetermined intervals. The guide beam 610, which will be discussed below, may be inserted through the beam bracket 310.

Referring to FIG. 8B, the link groove 320 may be formed in the cartridge hole 330 on the member body 340. A link pin 663, which will be discussed below, may be inserted into the link home 320.

The beam bracket 310 and link groove 320 will be examined in detail when explaining the structure of the mobile unit 600.

The moving member may move the cartridge member 300 in the first direction (X) and the second direction (Y). Through this, the cartridge member 300 can move in the first direction (X) and the second direction (Y) and print a design on the user's nail.

In an embodiment of the present disclosure, the moving member may include a moving means 500 and a moving unit 600. The moving means 500 can move the cartridge member 300 in the first direction (X), and the moving unit 600 can move the cartridge member 300 in the second direction (Y).

Referring to FIGS. 9A to 10, the moving means 500 includes a device base 510, a first shaft 520, a second shaft 530, a driving means 540, a link block 560, and a tension adjustment means. It may include (570).

The central portion 510a of the device base 510 may be disposed along the first direction (X), and the side portion 510b of the device base 510 may be bent and disposed in the second direction (Y). In the embodiment of the present disclosure, the device base 510 may have an overall ] shape, but it is not necessarily limited thereto, and any shape capable of supporting both sides of the first and

second shafts

520 and 530 may be sufficient.

Additionally, a lifting block 710 may be placed on the side 510b of the device base 510. A lifting beam hole 713 may be formed in the lifting block 710, and the lifting beam 720 shown in FIG. 15C is disposed in the lifting beam hole 713 and moves the nail art device 100 in the third direction (Z). I can guide you.

Referring to FIG. 10 , a first shaft hole 511 and a second shaft hole 513 may be disposed on the side 510b of the device base 510.

Additionally, the first shaft 520 may be inserted and placed in the first shaft hole 511, and the second shaft 530 may be inserted and placed in the second shaft hole 513. The first and

second shafts

520 and 530 are coupled with the moving unit 600, specifically the receiving frame 670, which will be discussed below, and by the operation of the driving means 540, the moving unit 600 is connected to the first and second shafts. It is guided by (520,530) and can move in the first direction (X).

The driving means 540 is coupled to the moving unit 600, which will be discussed below, by a link block 560, and can provide power to move the moving unit 600 in the first direction (X).

To this end, the driving means 540 may include a motor unit 541, a gear assembly 547, a first pulley 551, a second pulley 553, and a timing belt 555.

The motor unit 541 may be disposed in the central part 510a of the device base 510. The motor unit 541 can be controlled by the control board (P), and power can be supplied through the battery (B).

The gear assembly 547 can connect the drive shaft of the motor unit 541 and the first pulley 551, and can change the rotation speed and rotation amount of the motor unit 541 and transmit them to the first pulley 551.

In an embodiment of the present disclosure, the gear assembly 547 may include a first gear 542, a second gear 543, a third gear 544, a fourth gear 545, and a fifth gear 546. there is.

The first gear 542 may be coupled to the drive shaft of the motor unit 541.

The rotation axis of the second gear 543 may be rotatably connected to the device base 510, and the second gear 543 includes a 2-1 gear 543a with a relatively large diameter and a second gear 543a with a relatively small diameter. It may be composed of a -2 gear (543b), and the 2-1 gear (543a) may be engaged with the first gear (542) and receive rotational force.

At this time, since the diameter of the 2-1 gear 543a is larger than the diameter of the first gear 542, the rotation speed and rotation amount of the first gear 542 are transmitted to the 2-1 gear 543a. It decreases. And since the 2-1 gear (543a) and the 2-2 gear (543b) are connected to the same rotation axis, the 2-1 gear (543a) and the 2-2 gear (543b) are connected to the first gear (542) It operates at a reduced rotation speed and rotation amount.

And the rotation axis of the third gear 544 may be rotatably connected to the device base 510, and a 3-1 gear 544a with a relatively large diameter and a 3-2 gear 544b with a relatively small diameter It may be configured, and the 3-1 gear (544a) is engaged with the 2-2 gear (543b) and can receive rotational force.

At this time, since the diameter of the 3-1 gear (544a) is larger than the diameter of the 2-2 gear (543b), the rotation speed and rotation amount of the 2-2 gear (543b) are the 3-1 gear (544a) It decreases when passed to . And since the 3-1 gear (544a) and the 3-2 gear (544b) are connected to the same rotation axis, the 3-1 gear (544a) and the 3-2 gear (544b) are connected to the 2-2 gear ( It operates at a reduced rotation speed and rotation amount from 543b).

The rotation axis of the fourth gear 545 may be rotatably connected to the device base 510 and may be disposed in engagement with the 3-2 gear 544b. The fourth gear 545 receives the same rotation speed and rotation amount from the 3-2 gear 544b and transmits them to the fifth gear 546.

Additionally, the rotation axis of the fifth gear 546 may be rotatably connected to the device base 510, and the rotation axis of the fifth gear 546 may be connected to the first pulley 551.

Accordingly, the fifth gear 546 can transmit the rotation speed and rotation amount received from the fourth gear 545 to the first pulley 551.

Referring to Figure 9b, the first pulley 551 is connected to the rotation axis of the fifth gear 546 and can be confirmed to be disposed on one side of the central portion 510a of the device base 510, and the second pulley is opposite to this. It can be confirmed that 553 is placed on the other side of the central part 510a of the device base 510.

And the first pulley 551 and the second pulley 553 are connected to each other by a timing belt 555. Here, the timing belt 555 shown in FIG. 9B is depicted as having the uneven portion 555a formed only on a portion of the timing belt 555, but the uneven portion 555a may be formed on the entire inner surface of the timing belt 555. The uneven portion 555a is engaged with the first and

second pulleys

551 and 553, and can allow the timing belt 555 to move when the first pulley 551 rotates.

On the other hand, if the tension of the timing belt 555 is insufficient, the uneven portion 555a of the first pulley 551 and the second pulley 553 may not be properly engaged, so the timing belt 555 may not move smoothly. . In this case, the movement unit 600 does not move smoothly in the first direction (X).

Therefore, the tension of the timing belt 555 must be maintained so that the uneven portion 555a of the timing belt 555 is well engaged with the first and

second pulleys

551 and 553.

The tension adjusting means 570 may be disposed on the device base 510 and connected to the second pulley 553. The tension adjusting means 570 may apply elastic force to the second pulley 553 to maintain the tension of the timing belt 555.

This tension adjustment means 570 may include a fixed piece 571, a moving piece 572, an elastic body 573, a fixed protrusion 574, a fixed shaft beam 576, and a latch protrusion 577.

The fixing piece 571 may be a rectangular block with a through portion 571a formed on the center side, and may be arranged by being fastened to the device base 510 with a bolt 571b.

Referring to FIG. 9B, the fixing protrusion 574 may be disposed on one side of the penetrating portion 571a and may support one end of the elastic body 573.

Also, referring to Figure 9a, the moving piece 572 may be disposed on the other side of the penetrating part 571a and connected to the other end of the elastic body 573.

The elastic body 573 may be disposed in the penetrating portion 571a, one end may be fixed by the fixing protrusion 574, and the other end may be connected to the moving piece 572. The elastic body 573 can apply elastic force to the moving piece 572. In an embodiment of the present disclosure, the elastic body 573 may be a coil spring, but is not necessarily limited thereto.

The fixed axis beam 576 may be connected to the moving piece 572 in the second direction (Y), and a second pulley 553 may be rotatably connected to the outer circumference of the fixed axis beam 576.

At this time, a latch protrusion 577 may be disposed at the end of the fixed axis beam 576 to prevent the second pulley 553 from being separated from the fixed axis beam 576. The latch protrusion 577 is caught on the second pulley 553, and the fixed axis beam 576 and the second pulley 553 can be connected to each other. Conversely, when it is desired to separate the second pulley 553 from the fixed axis beam 576, the latch protrusion 577 is pushed inward from the second pulley 553 to separate the second pulley 553 from the fixed axis beam 576. can do.

Through the above-described structure, while one end of the elastic body 573 is supported by the fixing protrusion 574, the elastic force of the elastic body 573 is applied to the moving piece 572 through the other end of the elastic body 573.

Since the moving piece 572 is connected to the second pulley 553 by the fixed axis beam 576, ultimately the second pulley 553 receives force in the opposite direction of the first pulley 551, which causes Through this, the tension of the timing belt 555 connected to the first and

second pulleys

551 and 553 can be maintained.

Meanwhile, referring to Figures 10 and 11, the tolerance removing means 800 is configured to remove the tolerance between the size of the first shaft hole 511 and the size of the first shaft 520 or the size of the second shaft hole 513 and the first shaft hole 513. 2 In order to eliminate the tolerance between the sizes of the shafts 530, the outer surface of the first shaft 520 and the inner surface of the first shaft hole 511 are brought into contact with each other, or the outer surface of the second shaft 530 and the second shaft are brought into contact with each other. The inner surfaces of the holes 513 can be brought into contact with each other.

A tolerance may occur due to a size difference between the sizes of the first and second shaft holes 511 and 513 and the sizes of the first and

second shafts

520 and 530. In the embodiment of the present disclosure, the first and

second shafts

520 and 530 have a cylindrical shape and the first and second shaft holes 511 and 513 have a circular cross section, so that the inner diameters of the first and second shaft holes 511 and 513 and the first and second shaft holes 511 and 513 have a circular cross-section. This may be a tolerance due to a size difference between the outer diameters of the

shafts

520 and 530. However, the shapes of the first and

second shafts

520 and 530 and the first and second shaft holes 511 and 513 are not limited thereto.

In order to insert the first and second shafts (520,530) into the first and second shaft holes (511,513), the outer diameter of the first and second shafts (520,530) needs to be slightly smaller than the inner diameter of the first and second shaft holes (511,513). There is, and accordingly, a tolerance occurs between the first and second shafts (520,530) and the first and second shaft holes (511,513). If there is a tolerance, when the receiving frame 670 moves along the first and second shafts (520,530), the first and second shafts (520,530) are not properly fixed inside the first and second shaft holes (511,513), causing shaking and vibration. etc. may occur.

In this case, the design may not be printed properly on the user's nail.

In an embodiment of the present disclosure, the tolerance removing means 800 may include a pressing pin 810, a support block 830, a first pin groove 840, and a second pin groove 850 to solve the above-described tolerance problem. there is.

The support block 830 may be disposed to protrude outward from the side 510b of the device base 510. At this time, the support block 830 may be inclined forming an acute angle (θ) in the second direction (Y). This is to prevent the pressing pins from deviating in the direction opposite to the second direction (-Y) when pressing the first and

second shafts

520 and 530 in the directions of the arrows H1 and H2, by attaching the support block 830 to the second direction. It is formed at an acute angle (θ) inclined in the direction (Y).

Referring to FIG. 11, based on the third direction (Z), the support block 830, the first shaft hole 511, and the second shaft hole 513 are located on the side 510b of the device base 510. Can be placed in different locations. In particular, based on the second direction (Y), the first and second shaft holes 511 and 513 are located further in the opposite direction (-Y) to the second direction than the support block 830 on the side 510b of the device base 510. Can be placed on the side. This is a structure in which the pressing pin 820 is supported by the first surface 830a of the support block 830 and presses the first shaft 520 or the second shaft 530 in the direction of the arrows H1 and H2. This is to design.

That is, the pressure pin 830 is supported so as not to be separated by the support surface 830a of the support block 830 inclined at an acute angle (θ), and the first and

second shafts

520 and 530 are moved in the direction of the arrows (H1 and H2). It can be pressurized.

At this time, a first pin groove 840 may be formed on the outer circumference of the first shaft 520, and a second pin groove 850 may be formed on the outer circumference of the second shaft 530.

The pressure pin 810 may contact the support surface 830a of the support block 830 and the outer surface of the first shaft 520, respectively. Additionally, the pressing pin 810 may contact the support surface 830a of the support block 830 and the outer surface of the second shaft 530, respectively.

In an embodiment of the present disclosure, the pressure pin 810 may be bent multiple times. This pressure pin 810 may include a first bent portion 821, a second bent portion 823, and a third bent portion 825.

The first bent portion 821 may be formed at one end of the pressing pin 810 and may be bent in the third direction (Z). In the embodiment of the present disclosure, the first bent portion 821 may be arranged side by side in the third direction (Z), but it is not necessarily limited to this, and it is sufficient to stably pressurize the first shaft 520. do.

The third bent portion 825 may be formed at the other end of the pressing pin 810 and may be bent in a direction (-Z) opposite to the third direction. In the embodiment of the present disclosure, the third bent portion 825 may be arranged side by side in the direction opposite to the third direction (-Z), but is not necessarily limited thereto and may stably pressurize the first shaft 520. It is enough to have it.

A pair of second bent portions 823 may be formed in the central portion of the pressing pin 810, and may be bent in an opposite direction to the first bent portion 821 or in an opposite direction to the third bent portion 825. there is.

That is, in the embodiment of the present disclosure, the pressing pin 810 can be bent four times (the first bent portion 821, the pair of second bent portions 823, and the third bent portion 825), and accordingly It may be formed in the form shown in FIG. 11.

Through this shape, the pressure pin 810 between the pair of second bent portions 823 is supported by contacting the first surface of the support block 830, and the first bent portion 821 has a first pin groove ( 840, and the third bent portion 825 may be inserted into the second pin groove 850.

And the first bent part 821 can press the first shaft 520 in the direction of arrow H1, and the third bent part 825 can press the second shaft 530 in the direction of arrow H2. You can.

Accordingly, a portion of the outer surface of the first shaft 520 is in contact with a portion of the inner surface of the first pin groove 840, and a tolerance between the first shaft 520 and the first pin groove 840 can be eliminated.

Additionally, a portion of the outer surface of the second shaft 530 is in contact with a portion of the inner surface of the second pin groove 850, and a tolerance between the second shaft 530 and the second pin groove 850 can be eliminated.

The tolerance between the first shaft 520 and the first shaft hole 511 and the tolerance between the second shaft 530 and the second shaft hole 513 are reduced by the tolerance removing means 800 according to the embodiment of the present disclosure described above. When removing, it may be easier to manufacture the nail art device than removing the tolerance through other embodiments.

For example, when using bolts, the first shaft 520 and the second shaft 530 are installed so that the first shaft 520 and the second shaft 530 do not protrude out of the first shaft hole 511 and the second shaft hole 513. A process of cutting the second shaft 530 may be necessary when manufacturing the nail art device 100, and in this case, the manufacturing process of the nail art device 100 may become complicated.

Meanwhile, in another embodiment, a case where the press pin 810 is disposed only between the support surface 830a of the support block 830 and the first shaft 520 may be considered, that is, the first bent pin 810 is attached to the press pin 810. In the case where only the portion 821 and the second bent portion 823 are formed, the portion formed by the pair of second bent portions 823 on the pressing pin 810 is the support surface 830a of the support block 830. It can be fixed by bolting or welding, and the first bent portion 821 presses the first shaft 520 in the direction of arrow H1 to eliminate tolerance.

In another embodiment, a case where the pressure pin 810 is disposed only between the support surface 830a of the support block 830 and the second shaft 530 may be considered, that is, the second bent portion is attached to the pressure pin 810. In the case where only 823 and the third bent portion 825 are formed, the portion formed by the pair of second bent portions 823 in the pressing pin 810 is on the support surface 830a of the support block 830. It can be fixed by bolting or welding, and the third bent portion 825 presses the second shaft 530 in the direction of arrow H2 to eliminate tolerance.

Meanwhile, referring to FIGS. 10 and 12, the link block 560 can connect the timing belt 555 and the mobile unit 600, which will be discussed below. Specifically, the link block 560 can connect the timing belt 555 and the receiving frame 670 constituting the moving unit 600.

When the timing belt 555 moves according to the operation of the driving means 540, the receiving frame 670 connected to the timing belt 555 and the link block 560 moves along the first direction (X).

This link block 560 may be connected to the receiving frame 670 by fastening bolts 560a, and may include a tooth portion 561 and a separation prevention plate 563.

The tooth portion 561 may be formed on the upper part of the link block 560 and may be disposed in engagement with the uneven portion 555a of the timing belt 555. Accordingly, when the timing belt 555 moves, the link block 560 also moves together.

The separation prevention plate 563 may be disposed on the side of the tooth portion 561 at the top of the link block 560 and may have a plate shape protruding in the third direction (Z). The separation prevention plate 563 supports one side of the timing belt 555 and can prevent the timing belt 555 from separating from the first and

second pulleys

551 and 553.

Referring to FIG. 12, one side of the timing belt 555 is supported by the separation prevention plate 563, and the other side of the timing belt 555 is supported by the receiving frame 670, so that the timing belt 555 The position of is maintained stably and can be prevented from being separated from the first and

second pulleys

551 and 553.

Meanwhile, referring to FIGS. 6 to 8C, the moving unit 600 includes a guide beam 610, a fastening ring 615, a driving unit 620, a guide shaft 630, a screw block 640, and a screw base ( 650), a moving block 660, and a receiving frame 670 may be included.

The cartridge member 300 may be coupled to the receiving frame 670, and as described above, it is connected to the timing belt 555 by the link block 560 and is guided by the first and

second shafts

520 and 530. 1 Can move along direction (X).

At this time, a guide block 678 (see FIG. 12) may be placed on the receiving frame 670, and a second shaft 530 may be placed on the guide block 678. The guide block 678 can prevent the receiving frame 670 from being separated from the second shaft 530.

Referring to FIG. 6, a cartridge receiving portion 674 is formed in the center of the receiving frame 670, and the cartridge member 300 can be seated on the cartridge receiving portion 674.

Additionally, a plurality of support brackets 675 may be disposed on both sides of the cartridge receiving portion 674, and the guide beam 610 may be disposed penetrating the plurality of support brackets 675.

At this time, the guide beam 610 is inserted into the plurality of support brackets 675 and the plurality of beam brackets 310 and can connect the cartridge member 300 and the receiving frame 670. Accordingly, the cartridge member 300 is a guide. It is guided by the beam 610 and can move in the second direction (Y).

Referring to FIG. 7, a plurality of cut grooves 613 recessed inward in the circumferential direction may be formed around the outer circumference of the guide beam 610, and a fastening ring 615 may be fitted into the cut grooves 613. there is. The fastening ring 615 may be formed with a plurality of fitting protrusions 615a protruding inward, and the fitting protrusions 615a are fitted into the cut grooves 613 and the fastening ring 615 is fixed to the guide beam 610. It can be.

The fastening ring 615 can prevent the guide beam 610 from separating from the support bracket 675 and the beam bracket 310, and ultimately prevents the cartridge member 300 from separating from the receiving frame 670. It can be prevented.

A support piece 677 may be disposed at the bottom center of the cartridge receiving portion 674. The support piece 677 may support the lower portion of the cartridge member 300 while the cartridge member 300 moves along the second direction (Y).

And referring to FIGS. 13A and 13B, a through hole 672 through which the first shaft 520 passes and is inserted may be formed in the upper part of the receiving frame 670. Referring to FIG. 1, the first shaft 520 is disposed passing through the through hole 672 formed in the upper part of the receiving frame 670, and it can be confirmed that the receiving frame 670 and the first shaft 520 are connected. there is.

Referring to FIGS. 8A and 8B, it can be seen that the drive unit 620 is disposed at the lower part of the receiving frame 670. The drive unit 620 is connected to the lower part of the cartridge member 300 and can move the cartridge member 300 along the second direction (Y).

This drive unit 620 may include a motor unit 621, a lead screw 623, a guide shaft 630, a screw block 640, a screw base 650, and a moving block 660.

The motor unit 621 may be placed below the receiving frame 670, and one end of the lead screw 623 may be connected to the drive shaft of the motor unit 621. The motor unit 541 can be controlled by the control board (P), and power can be supplied through the battery (B).

At this time, a screw base 650 may be placed on the lower part of the receiving frame 670 by being fastened to a bolt 650a, and the screw base 650 may support the other end of the lead screw 623.

The screw block 640 may be disposed in engagement with the lead screw 623, and may move along the longitudinal direction of the lead screw 623, that is, in the second direction (Y), as the lead screw 623 rotates.

And the guide shaft 630 may be disposed between the screw base 650 and the motor unit 621 and connected to the screw block 640. As the screw block 640 is connected to the guide shaft 630, it is possible to prevent the screw block 640 from rotating when the lead screw 623 rotates, and also prevents the screw block 640 from moving in the longitudinal direction. can guide you.

The moving block 660 may be connected between the driving unit 620 and the cartridge member 300, and may move the cartridge member 300 in the second direction (Y) by the operation of the driving unit 620.

A fitting hole 661 may be formed in the moving block 660, and the screw block 640 may be inserted into and connected to the fitting hole 661. Accordingly, when the screw block 640 moves along the lead screw 623, the moving block 660 also moves together.

And a link pin 663 may be disposed on the moving block 660, and the link pin 663 may be inserted into the link groove 320 formed in the cartridge hole 330 described above. Accordingly, the moving block 660 and the cartridge member 300 can be connected.

Additionally, a connector hole 660a may be formed in the moving block 660, and a connector 680 is inserted into the connector hole 660a and fastened to the lower end of the cartridge member 300, and the moving block 660 and the cartridge member ( 300) can be connected. In an embodiment of the present disclosure, the connector 680 may be a bolt, but is not necessarily limited thereto.

Referring to FIG. 6, a guide hole 676 may be formed in the lower part of the cartridge receiving portion 674, and the guide hole 676 may extend in the second direction (Y) and be open. Here, the connector 680 may be inserted into the connector hole 660a, pass through the guide hole 676, and be connected to the lower end of the cartridge member 300.

As described above, the moving block 660 and the cartridge member 300 are connected to each other by the link pin 663 and the connector 680, so that when the moving block 660 moves, the cartridge member 300 also moves. You can. At this time, the connector 680 may move in the second direction (Y) along the guide hole 676.

Meanwhile, referring to FIGS. 13A and 13B, the tolerance removal pad 900 according to an embodiment of the present disclosure can remove the tolerance between the first shaft 520 and the through hole 672.

As described above, a through hole 672 through which the first shaft 520 penetrates and is inserted may be formed in the upper part of the receiving frame 670. As shown in FIG. 1, a through hole 672 may be formed in the upper part of the receiving frame 670. As the first shaft 520 passes through the formed through hole 672 and is disposed, the receiving frame 670 and the first shaft 520 are connected, and the receiving frame 670 moves along the first shaft 520. You can.

However, a tolerance may occur due to a size difference between the size of the through hole 672 and the size of the first shaft 520. In the embodiment of the present disclosure, the first shaft 520 has a cylindrical shape and the through hole 672 has a circular cross section, so the tolerance due to the size difference between the inner diameter of the through hole 672 and the outer diameter of the first shaft 520 It can be. However, the shapes of the first shaft 520 and the through hole 672 are not limited thereto.

In order to insert the first shaft 520 into the through hole 672, the outer diameter of the first shaft 520 needs to be slightly smaller than the inner diameter of the through hole 672, and accordingly, the first shaft 520 and A tolerance occurs between the through holes 672. If there is a tolerance, shaking, vibration, etc. may occur when the receiving frame 670 moves along the first shaft 520.

In this case, the design may not be printed properly on the user's nail.

The tolerance removal pad 900 is in contact between the receiving frame 670 and the first shaft 520, and pressurizes the first shaft 520 so that a portion of the first shaft 520 contacts a portion of the through hole 672. status can be maintained. Through this, when the receiving frame moves along the first shaft 520, shaking and vibration of the receiving frame 670 can be suppressed.

Here, an opening 671 may be formed in the upper part of the receiving frame 670, and the opening 671 may be connected to the through hole 672. Referring to Figure 13b, it can be seen that a through hole 672 is formed on the side of the opening 671. Referring to Figure 1, the first shaft 520 is inserted into the through hole 672 and opens the opening 671. You can check the placement status by passing through.

Additionally, a seating groove 673 may be formed in the inner lower portion of the opening 671, and the tolerance removal pad 900 may be disposed in the seating groove 673.

The tolerance removal pad 900 disposed in the seating groove 673 is in contact with the upper part of the receiving frame 670 and the lower part of the first shaft 520, and holds the first shaft 520 with the restoring force generated by the structure. Can be pressed in 3 directions (Z).

Referring to FIG. 13A, both sides of the tolerance removal pad 900 apply force to the seating groove 673 in the downward direction as indicated by arrow M3, and the central portion of the tolerance removal pad 900 applies force to the first shaft 520. You can check the state of applying force in the upward direction (M1). Accordingly, the first shaft 520 is pressed in the third direction Z, and a portion of the outer surface of the first shaft 520 comes into contact with a portion of the inner surface of the through hole 672 as indicated by the arrow M2.

Ultimately, since the first shaft 520 remains in contact with the through hole 672 even while the receiving frame 670 is moving, the tolerance is eliminated even when moving in the first direction (X), thereby suppressing shaking, vibration, etc. It becomes possible.

In an embodiment of the present disclosure, the tolerance removal pad 900 may include a side pad 920, a center pad 910, an upper bent portion 931, and a lower bent portion 933.

A pair of side pads 920 may be disposed on both sides of the tolerance removal pad 900 and may be in contact with the inside of the seating groove 673.

The center pad 910 may be disposed between a pair of side pads 920 and may be in contact with the lower portion of the first shaft 520.

Here, a center bent portion 910a is formed at the lower part of the center pad 910, and upper bent portions 931 and lower bent portions 933 are formed alternately between the center pad 910 and the side pad 920. You can. In the shape shown in Figure 13a, the upper bent portion 931 and the lower bent portion 933 are disposed one each between the center pad 910 and the side pad 920, but are not limited to this and may be formed in different numbers. there is.

When the first shaft 520 is inserted into the through hole 672, the tolerance removal pad 900 is slightly pressed due to the gap between the lower part of the first shaft 520 and the seating groove 673. At this time, the center bent portion 910a, the upper bent portion 931, and the lower bent portion 933 are slightly deformed, and the tolerance removal pad 900 is located between the first shaft 520 and the seating groove 673.

Here, the force with which the tolerance removal pad 900 presses the first shaft 520 in the third direction (Z) is applied when the center bent portion 910a, the upper bent portion 931, and the lower bent portion 933 are deformed. It becomes the force to restore it to its original state. This is a restoring force generated by the structure as the center bent portion 910a, the upper bent portion 931, and the lower bent portion 933 are arranged in a zigzag manner. This restoring force eliminates tolerance by allowing a portion of the outer surface of the first shaft 520 to contact a portion of the inner surface of the through hole 672.

Meanwhile, referring to FIG. 14, the cartridge member 300 moves in the first direction (X) according to the operation of the moving means 500 and the cartridge member 300 moves in the first direction (X) according to the operation of the moving unit 600. 2 You can check the status of movement in direction (Y).

As described above, the tolerance between the first shaft 520 and the first shaft hole 511 and the tolerance between the second shaft 530 and the second shaft hole 513 are removed by the tolerance removing means 800, so that the cartridge The member 300 may move along the first direction (X) while suppressing shaking, vibration, etc.

At this time, the tolerance removal pad 900 removes the tolerance between the first shaft 520 and the receiving frame 670, so that the receiving frame 670 itself can be moved while suppressing shaking and vibration.

That is, overall shaking and vibration can be suppressed when moving in the first direction (X), and quality can be maintained when printing a design on the user's nail.

In addition, by implementing a structure in which the moving unit 600 is disposed on the receiving frame 670 and directly moves the cartridge member 300 in the second direction (Y), the size and volume of the nail art device 100 are reduced compared to conventional products. can be reduced overall.

Meanwhile, referring to FIGS. 15A to 15C, a first embodiment of a device casing 200 in which a nail art device 100 according to an embodiment of the present disclosure is built is disclosed. The size and shape of the device casing 200 may be changed appropriately.

The first embodiment of the device casing 200 may include an upper casing 210 and a lower casing 220. When the nail art device 100 is not in use, the lower casing 220 may be inserted into the upper casing 210. In this case, the size and volume of the product are reduced, making it convenient for users to carry. Although not shown in the drawing, an interconnection structure may be provided between the upper casing 210 and the lower casing 220, and a structure for fixing the lifting structure and lifting position of the upper casing 210 may be provided. .

If the user wants to print a design on the nail, the user places the lower casing 220 on the ground, palm, etc., grabs the upper casing 210, and lifts it upward. A finger hole 230 is disposed in the lower casing 220, and when the user lifts the upper casing 210, the finger hole 230 is exposed. Thereafter, the user inserts the finger into the finger hole 230 with the nail facing up.

Referring to FIG. 15C, the approximate state in which the nail art device 100 is placed inside the upper casing 210 and the lower casing 220 can be confirmed. Here, the size and shape of the upper casing 210 and lower casing 220, and the size, position and shape of the finger hole 230 and finger seating portion 222 can be adjusted to suit the ratio with the nail art device 100.

When the user raises the upper casing 210, the nail art device 100 moves upward along the lifting beam 720, creating space to insert a finger into the finger hole 230. The user inserts his or her finger into the finger hole 230, places it on the finger seating portion 222, and clicks the button on the wireless controller or the device casing 200 to operate the nail art device 100.

The nail art device 100 recognizes the user's nail size through a sensor, moves the moving member in the first and second directions (X, Y), and prints the design selected by the user on the nail.

Meanwhile, referring to FIGS. 16A and 16B, a second embodiment of a device casing 200 in which a nail art device 100 according to an embodiment of the present disclosure is built is disclosed.

In the second embodiment of the device casing 200, a leg receiving groove 251 and a leg 253 may be disposed at the lower portion. The size and shape of the device casing 200 may be changed appropriately.

When the user is not using the nail art device 100, the leg 253 can be folded and placed in the leg receiving groove 251. Although not shown in the drawing, the leg 253 may be connected to the leg receiving groove 251 by a hinge, and the leg 253 may be placed into the leg receiving groove 251 by rotating the hinge. In this case, the size and volume of the product are reduced, making it convenient for users to carry.

If the user wants to print a design on the nail, the user unfolds the leg 253 in the leg receiving groove 251, places it on the ground, palm, etc., and inserts a finger into the lower part of the device casing 200.

Referring to FIG. 16B, a casing hole 240 through which an ink cartridge is exposed is formed at the bottom of the device casing 200, and the user places the nail at the bottom of the casing hole 240 with the nail positioned upward.

Afterwards, the user clicks the button on the wireless controller or the device casing 200 to operate the nail art device 100. The nail art device 100 recognizes the user's nail size through a sensor, moves the moving member in the first and second directions (X, Y), and prints the design selected by the user on the nail.

According to at least one of the above-described embodiments of the present invention, portability is improved by reducing the size of the product by improving the sliding structure, and there is an advantage of stable sliding movement and design printing by eliminating tolerances.

In the present disclosure, the nail art device is not limited to the configuration and method of some of the embodiments described above, but is configured by selectively combining all or part of each embodiment so that various modifications can be made. It could be.

Claims

A device base having a first shaft hole formed thereon;

a first shaft inserted into and disposed in the first shaft hole; and

Tolerance removing means bringing an outer surface of the first shaft and an inner surface of the first shaft hole into contact with each other to remove a tolerance between the size of the first shaft hole and the size of the first shaft;

Including,

The tolerance removal means is:

a support block disposed to protrude outward from a side of the device base;

Including,

Based on the third direction (Z), the support block and the first shaft hole are disposed at different positions on the device base,

Based on the second direction (Y), the first shaft hole is disposed on the device base on a side opposite to the second direction (Y) than the support block,

Nail art device.
According to paragraph 1,

The support block is inclined and forms an acute angle in the second direction (Y),

Nail art device.
According to paragraph 1,

The tolerance removal means is,

Pressing pins contacting the support surface of the support block and the outer surface of the first shaft, respectively;

Including,

Nail art device.
According to paragraph 3,

The pressure pin is:

a first bent portion bent in a third direction (Z) at one end and in contact with an outer surface of the first shaft; and

a second bent portion disposed at the center and bent in an opposite direction to the first bent portion, contacting the support surface of the support block, and pressing the outer surface of the first shaft to the inner surface of the first shaft hole;

Including,

Nail art device.
According to paragraph 4,

The tolerance removal means is:

a first pin groove formed around the outer circumference of the first shaft and into which the first bent portion is inserted;

Containing more,

Nail art device.
According to paragraph 4,

a second shaft hole formed on a side of the device base; and

a second shaft inserted into and disposed in the second shaft hole;

Containing more,

Nail art device.
According to clause 6,

Based on the third direction (Z), the support block and the second shaft hole are arranged at different positions on the device base,

Based on the second direction (Y), the second shaft hole is disposed on the device base on a side opposite to the second direction (Y) than the support block,

Nail art device.
In clause 7,

The tolerance removal means is,

In order to eliminate a tolerance between the inner surface of the second shaft hole and the outer surface of the second shaft, the outer surface of the second shaft and the inner surface of the second shaft hole are brought into contact with each other,

Nail art device.
According to clause 8,

The pressure pin is,

A third bent portion is formed at the other end and is bent in a direction opposite to the third direction (Z), is in contact with the outer surface of the second shaft, and presses the outer surface of the second shaft to the inner surface of the second shaft hole;

Containing more,

Nail art device.
According to clause 9,

The tolerance removal means is,

a second pin groove formed around the outer circumference of the second shaft and into which the third bent portion is inserted;

Containing more,

Nail art device.
According to paragraph 1,

It further includes a receiving frame connected to the first shaft and to which the cartridge member is coupled,

A through hole through which the first shaft passes is formed on both sides of the receiving frame,

a tolerance removal pad disposed in contact with the receiving frame and the first shaft and removing a tolerance between the size of the first shaft and the size of the through hole;

Containing more,

Nail art device.
According to clause 11,

an opening formed at an upper portion of the receiving frame and connected to the through hole; and

a seating groove formed to be recessed in the inner lower portion of the opening;

Including more,

The tolerance removal pad is disposed in the seating groove, presses the first shaft in a third direction (Z), and removes a tolerance between the size of the first shaft and the size of the through hole.

Nail art device.
According to clause 12,

The tolerance removal pad is,

a pair of side pads in contact with the seating groove; and

a center pad connected between the pair of side pads and in contact with the first shaft;

Including,

Nail art device.
According to clause 13,

A center bend is formed at the bottom of the center pad, and an upper bend with an open top and a lower bend with an open bottom are alternately formed between the center pad and the side pad.

Nail art device.