JP6344497B2 - Nail printing apparatus and printing method for nail printing apparatus - Google Patents

Description

  The present invention relates to a nail printing apparatus and a printing method of the nail printing apparatus.

2. Description of the Related Art Conventionally, there is known a plotter-type printing apparatus that includes a drawing head equipped with a pen (drawing tool) and draws the pen by bringing the tip of the pen into contact with a sheet (object) (see, for example, Patent Document 1). ).
In Patent Document 1, an inclination angle with respect to a floor surface of a table on which a paper is placed is detected, and the pen pressure, the pen lowering speed, and the drawing head moving speed are held at constant values according to the inclination angle. A configuration is disclosed.
In the method described in Patent Document 1, when drawing on a plane, the speed is changed in the oblique direction, so that the writing pressure or the like can be prevented from changing due to the change in the inclination angle of the table.

JP-A-7-266789

However, when the plotter is used as a nail printing apparatus, the drawing target is a nail, and the surface with which the tip of the pen abuts changes in the vertical direction (height direction).
When drawing from the end of a relatively low nail toward the center of a relatively high nail (ie, when the pen climbs the inclined surface of the nail), the nail is moved horizontally by the pen. It may be pushed hard. When the nail is strongly pressed by the pen, the finger may move by this, and there is a problem that the quality of the finished nail print is deteriorated.

  The present invention has been made in view of the circumstances as described above, reduces the pressing of the nail in the horizontal direction by the pen during drawing, prevents the finger from moving by being pressed by the pen, An object of the present invention is to provide a nail printing apparatus and a printing method of the nail printing apparatus that can realize high-definition nail printing.

In order to solve the above-mentioned problem, the nail printing apparatus of the present invention provides:
A drawing tool for drawing on the surface of the nail in contact with the fingernail;
A drive unit for moving the drawing tool;
A control unit for controlling the driving unit;
With
The controller controls the height of the drawing tool when the driving unit moves the drawing tool along the first direction while the drawing tool is in contact with the surface of the nail. Performing a moving direction control for moving the drawing tool along a second direction different from the first direction with respect to the surface of the nail when having a slope rising along the first direction; The two directions are directions in which the height of the drawing tool descends along the second direction when the drawing tool is moved along the second direction in contact with the surface of the nail. It is characterized by being.

Further, the printing method of the nail printing apparatus of the present invention is:
In the printing method of the nail printing apparatus,
The nail printing apparatus has a drawing tool for drawing on the surface of the nail in contact with a fingernail,
When the surface of the nail is moved along the first direction by the driving unit while the drawing tool is in contact with the surface of the nail, the height of the drawing tool is along the first direction. Control to perform a moving direction control for moving the drawing tool along a second direction different from the first direction with respect to the surface of the nail,
In the second direction, when the drawing tool is moved along the second direction in contact with the surface of the nail, the height of the drawing tool is lowered along the second direction. It is characterized by direction.

  According to the present invention, it is possible to reduce a feeling that a nail is pushed by a pen during drawing, to prevent a finger from moving by a force pushed by the pen, and to realize high-definition nail printing.

1 is a front view of a nail print apparatus according to a first embodiment. It is sectional drawing which follows the II-II line | wire in FIG. (A) is sectional drawing which follows the III-III line in FIG. 1, (b) is sectional drawing which follows the IV-IV line | wire shown by (a). FIG. 2 is an enlarged view of a pen carriage and a pen supported by the pen carriage in a drawing state, (a) is a side view of the pen carriage and pen, and (b) is an arrow view of the pen carriage and pen of (a). It is the top view seen from b direction, (c) is the front view which looked at the pen carriage and pen of (a) from arrow c direction. It is a principal part block diagram which showed the control structure of the nail print apparatus which concerns on this embodiment. It is explanatory drawing which shows the relationship between the inclination angle of a nail | claw, and the force which pushes a nail | claw, (a) has shown the case where the inclination angle of a nail is 0 degree | times, (b) has the inclination angle of a nail | claw 30 degree | times. (C) shows the case where the pen moves so as to climb the inclined surface of the nail when the inclination angle of the nail is 45 degrees. (D) shows the case where the pen moves so as to climb the inclined surface of the nail when the inclination angle of the nail is 60 degrees, and (e) shows that the pen goes down the inclined surface of the nail. The case of moving to is shown. It is explanatory drawing which showed the procedure which draws the outline of a painting area | region. It is explanatory drawing which showed the procedure of the painting process which paints a painting area | region. It is a figure which shows the example which gave the nail design of the lace pattern to the toe. (Pt1) is a diagram illustrating an example in which the Pt1 portion of FIG. 9 is drawn by applying the drawing direction restriction process, and (Pt2) is a drawing of the Pt2 portion of FIG. 9 by applying the drawing direction restriction process. (Pt3) is a diagram showing an example of drawing the Pt3 portion of FIG. 9 by applying the drawing direction restriction process, and (Pt1) is a drawing of the Pt1 portion of FIG. FIG. 10 is a diagram illustrating an example of drawing without applying the direction restriction process, and (Pt2) is a diagram illustrating an example of drawing the Pt2 portion of FIG. 9 without applying the drawing direction restriction process, and (Pt3) FIG. 10 is a diagram illustrating an example in which the Pt3 portion of FIG. 9 is drawn without applying the drawing direction restriction process. It is explanatory drawing which showed the modification of the procedure of the painting process which paints the outline of a painting area | region, and a painting area | region.

  An embodiment of a nail print apparatus 1 according to the present invention will be described with reference to FIGS. The embodiments described below are given various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the following embodiments and illustrated examples.

FIG. 1 is a perspective view showing an internal configuration of the nail print apparatus 1, and FIG. 2 is a cross-sectional view showing a cross section taken along line II-II shown in FIG.
As shown in FIGS. 1 and 2, the nail printing apparatus 1 includes a case main body 2 and an apparatus main body 10 accommodated in the case main body 2.

A pen replacement lid 23 configured to be openable and closable for replacing a pen (drawing tool) 41 of a drawing unit 40 (to be described later) is provided at one upper front end of the case body 2. The pen replacement lid 23 is rotatable from a closed state to an open state as shown in FIG. 2 via, for example, a hinge.
Further, a drawing medium placed on the pen custom-character part 61 at a position corresponding to a pen custom-character part 61 to be described later on one side surface of the case main body 2 (in this embodiment, the left side surface in FIG. 1). A medium insertion / exit 24 that can be replaced (not shown) is formed.

An operation unit 25 (see FIG. 5) is installed on the upper surface (top plate) of the case body 2.
The operation unit 25 is an input unit on which a user performs various inputs.
The operation unit 25 includes, for example, a power switch button for turning on the power of the nail printing apparatus 1, a stop switch button for stopping the operation, a design selection button for selecting a design image to be drawn on the nail T, and a drawing start for instructing a drawing start. Operation buttons (not shown) for performing various inputs such as buttons are arranged.

In addition, a display unit 26 is installed at a substantially central portion of the upper surface (top plate) of the case body 2.
The display unit 26 includes, for example, a liquid crystal display (LCD), an organic electroluminescence display, or other flat displays.
In the present embodiment, the display unit 26 includes, for example, a nail image obtained by photographing the printing finger U1 (a finger image including an image of the nail T), a contour line of the nail T included in the nail image, and the like. An image, a design selection screen for selecting a design image to be drawn on the nail T, a thumbnail image for design confirmation, an instruction screen for displaying various instructions, and the like are appropriately displayed.
A touch panel may be integrally formed on the surface of the display unit 26. In this case, for example, various stylus pens (not shown) that are pointed stick-shaped writing tools that are written on the touch panel surface, or touch operations that touch the surface of the display unit 26 with a fingertip, etc. Configured to allow input.

  The apparatus main body 10 is formed in a substantially box shape, and a lower machine casing 11 installed below the inside of the case main body 2 and an upper machine installed above the lower machine casing 11 and above the inside of the case main body 2. And a frame 12.

First, the lower machine casing 11 will be described.
The lower machine casing 11 includes a back plate 111, a bottom plate 112, a pair of left and right side plates 113 a and 113 b, an X-direction moving stage accommodating portion 114, a Y-direction moving stage accommodating portion 115 and a partition wall 116.
The lower ends of the side plates 113a and 113b are connected to the left and right ends of the bottom plate 112, respectively, and the side plates 113a and 113b are provided in a state where they stand up against the bottom plate 112.
The lower part of the back plate 111 is formed to be recessed in two steps toward the front (front side in the finger insertion direction). A lower end portion of the back plate 111 is connected to a front end portion of the bottom plate 112, and the back plate 111 divides a region surrounded by the bottom plate 112 and the side plates 113a and 113b back and forth.
The space formed on the back side of the recessed back plate 111 is an X-direction moving stage accommodating portion 114 and a Y-direction moving stage accommodating portion 115 (see FIG. 2). In the X-direction moving stage accommodating portion 114, the X-direction moving stage 45 of the drawing portion 40 is accommodated when the drawing portion 40 moves forward (front side in the finger insertion direction). A Y-direction moving stage 47 of the drawing unit 40 is disposed in the Y-direction moving stage accommodating unit 115.
Further, the partition wall 116 divides the space on the front side inside the lower machine casing 11 (the space on the front side in the finger insertion direction surrounded by the back plate 111, the bottom plate 112, and the side plates 113a and 113b) vertically. Is provided inside. The partition wall 116 is provided substantially horizontally, the left and right ends of the partition wall 116 are connected to the side plates 113 a and 113 b, respectively, and the rear end portion of the partition wall 116 is connected to the back plate 111.

The lower machine casing 11 is integrally provided with a finger fixing unit 30.
The finger fixing unit 30 will be described with reference to FIGS.
3A is a cross-sectional view showing the main part of the cross section taken along the line III-III shown in FIG. 1 in the direction of the arrow, and FIG. 3B is shown in FIG. It is sectional drawing which looked at the principal part of the cross section along the IV-IV line seen in the arrow direction.

The finger fixing unit 30 receives a finger corresponding to the nail T to be drawn (hereinafter referred to as “printing finger U1”) and a finger other than the printing finger U1 (hereinafter referred to as “non-printing finger”). And a finger retracting section 32 that retracts the printing finger U2).
The finger receiving portion 31 is disposed on the upper side of the partition wall 116 and substantially at the center in the width direction of the lower machine casing 11. In addition, a space partitioned by the partition wall 116 on the lower side of the lower machine casing 11 constitutes the finger retracting portion 32.
For example, when drawing on the nail T of the ring finger, as shown in FIG. 3A, the ring finger as the printing finger U1 is inserted into the finger receiving unit 31, and the other four fingers (non-printing finger U2) ( A thumb, an index finger, a middle finger, and a little finger) are inserted into the finger retracting section 32.
The finger receiving portion 31 is open to the front side of the lower machine casing 11 (the front side in the printing finger insertion direction), the lower side is a finger placement portion 116a constituting a part of the partition wall 116, both sides are partitions 31a, and the back The side is partitioned by a partition 31c. The finger placement unit 116a places the finger (printing finger U1) of the nail T to be drawn on the XY plane.
Further, the upper side of the finger receiving portion 31 is partitioned by a ceiling portion 31d. A window 31e for exposing the nail T of the printing finger U1 inserted into the finger receiving part 31 is formed in the ceiling part 31d.

Further, on both sides of the front surface side of the lower machine casing 11 on the upper surface of the partition wall 116, a front wall 31f that blocks the front side of the lower machine casing 11 is provided upright. Further, a pair of guide walls 31g that narrow toward the finger receiving portion 31 from the end near the center of the front wall 31f and guide the printing finger U1 into the finger receiving portion 31 are formed on the upper surface of the partition wall 116. It is erected.
The user can sandwich the partition wall 116 between the printing finger U1 inserted into the finger receiving unit 31 and the non-printing finger U2 inserted into the finger retracting unit 32. Therefore, the printing finger U1 inserted into the finger receiving part 31 is stably fixed.
In the present embodiment, a protruding portion 116b projecting downward is formed at the front end portion of the partition wall 116. The protruding portion 116b may be a tapered portion that gradually decreases in thickness toward the front side and gradually increases toward the back side. On the other hand, the whole structure may be thick. Since the protruding portion 116b is formed at the front end portion of the partition wall 116, when the non-printing finger U2 is inserted into the finger retracting portion 32, a space is secured between the drawn fingernail T and the partition wall 116. Further, it is possible to prevent the nail T from coming into contact with the lower surface of the partition wall 116 so that ink adheres to the apparatus side and the picture drawn on the nail T is rubbed and damaged.

On the upper surface of the lower machine casing 11 and next to the finger receiving portion 31 (a position corresponding to the medium insertion / exit 24 of the case main body 2 and on the left side in FIG. 1 in the present embodiment), a drawing head 42 to be described later. In the drawing possible range, a pen custom-character section 61 for performing a break-in of the pen 41 described later is provided. In addition, the pen custom-character part 61 is formed by digging down a part of the upper surface of the lower machine casing 11, and the height of the pen custom-character part 61 is when the printing finger U <b> 1 is inserted into the finger receiving part 31. It is preferable to be provided so as to be substantially the same as the height of the nail T.
The pen custom-character part 61 is a flat plate part on which a drawing medium (not shown) inserted from the medium insertion port 24 of the case body 2 is placed.
The drawing medium placed on the pen custom-printing unit 61 may be any medium that can accustom the pen tip 412, for example, a piece of paper.
In order to prevent the pen tip 412 from being dry or the start of writing from being faint due to poor ink loading, the pen custom-printing section 61 is provided on the medium to be drawn before starting drawing with image data on the nail T. The pen 41 is lowered to draw a predetermined image such as “◯” or “∞” and make a break-in to improve the state of the pen tip 412. The predetermined image to be drawn when performing break-in writing is not particularly limited, but is preferably a simple image such as “◯” or “∞” so as not to use ink excessively. It is preferable that the break-in writings such as “◯” and “∞” are written while slightly shifting each time within the range of the pen writing section 61. When writing is performed on almost the entire surface of the drawing medium, a display screen for prompting replacement of the drawing medium such as “Replace paper” is displayed on the display unit 26. In this case, when the user takes out the drawing medium from the medium insertion port 24 and replaces it with a new one, a new writing medium can be written into. If the drawing medium is roll paper, when the printing space is exhausted, the drawing medium is fed out from the roll paper so that break-in can be performed on a new printing surface.

In the present embodiment, a rubber pen cap 62 is installed in front of the pen custom-design section 61 (on the front side in the finger insertion direction). The number of pen caps 62 corresponding to the number of pens 41 attached to the drawing unit 40 (four in this embodiment) is provided. When the pen 41 is attached to the drawing unit 40 and drawing is not performed, After the pen 41 is moved right above the pen cap 62, a later-described solenoid 435 is pulled to lower the pen 41, and the pen tip 412 is accommodated in the pen cap 62. Drying can be prevented. The shape or the like of the pen cap 62 is not limited to the illustrated example. For example, the pen cap 62 is a long groove-shaped pen cap that can receive the pen tips 412 of all the pens 41 attached to the drawing unit 40. Also good.
In the present embodiment, the pen cap 62 is provided beside the pen custom section 61 as described above. Therefore, when drawing is started, the pen 41 is lifted and the pen custom section 61 immediately adjacent thereto is used. You can write in and start drawing. For this reason, the time required for the movement of the pen 41 and the like can be minimized, and a rapid drawing operation can be performed.

  The drawing unit 40 moves a drawing head 42 having a drawing pen 41, a unit support member 44 that supports the drawing head 42, and the drawing head 42 in the X direction (the X direction in FIG. 1 and the left and right direction of the nail printing apparatus 1). X-direction moving stage 45, X-direction moving motor 46, and Y-direction moving stage 47 for moving the drawing head 42 in the Y-direction (the Y-direction in FIG. 2 and the front-rear direction of the nail printing apparatus 1). A motor 48 and the like are provided.

In the present embodiment, the drawing head 42 includes four pen carriages 43 each holding one pen 41.
4 (a) to 4 (c) are enlarged views of the pen carriage 43 and the pen 41 supported by the pen carriage 43. As shown in FIGS. 3 (a) and 3 (b), the pen tip is shown. 412 shows a state (drawing state) when the nail T is in contact with the nail T and drawing is performed on the nail T.
4A is a side view of the pen carriage 43 and the pen 41, and FIG. 4B is a top view of the pen carriage 43 and the pen 41 in FIG. FIG. 4C is a front view of the pen carriage 43 and the pen 41 shown in FIG.

As shown in FIG. 4A to FIG. 4C, the pen 41 held by each pen carriage 43 is provided with a pen tip 412 on the tip end side of the pen shaft portion 411. The interior of the pen shaft portion 411 is an ink storage portion that stores various inks. The ink accommodated in the pen shaft portion 411 is not particularly limited in terms of viscosity, colorant particle size (particle size), and the like. For example, gold-silver glittered ink, white ink, UV curable type Ink, gel nail, undercoat, topcoat, nail polish, etc. can also be used.
On the other end side of the pen shaft portion 411, a lid portion 414 on which a collar portion 413 projecting outward from the pen shaft portion 411 is attached. The material for forming the pen shaft portion 411 and the lid portion 414 is not particularly limited, but is preferably formed of a resin or the like in order to reduce the weight of the pen 41.
In this embodiment, a knob portion 415 is provided on the upper portion of the lid portion 414 so that it can be easily held by hand or tweezers, and a small iron piece 416 is embedded in the knob portion 415 so as to be attracted to the magnet. It is provided by sticking or the like.

The pen 41 is, for example, a pen in which the pen tip 412 is a ball-point pen type in which the pen tip 412 is pressed against the surface of the nail T to draw the ink contained in the pen shaft portion 411. The pen 41 is not limited to the ball-point pen type, for example, a sign pen type that draws ink by soaking it in a felt-shaped pen tip, a brush pen type that draws ink by soaking it in bundled hair, etc. It may be. Various types of pen tip 412 can be prepared.
The pen 41 held by each pen carriage 421 may be a pen having the same type of nib 412 or a pen having a different type of nib 412.
As will be described later, since the pen 41 is held only by being inserted into the pen holding portion 437d and the pen holder 431 of the pen carriage 43 from above, the pen replacement lid portion 23 provided in the case body 2 is opened, Can be easily replaced by picking the knob part 415 with a hand or tweezers, or by approaching a bar member (not shown) with a magnet attached to the knob part 415 and pulling the iron piece 416 to the magnet and pulling it up. It is. For this reason, the user can realize a wide range of nail designs by appropriately replacing the pens 41 to be mounted on the pen carriages 43 with pens 412 and pens having different ink types according to the nail design to be drawn. Can do.

  In the present embodiment, since four pen carriages 43 that hold the pen 41 are arranged in the width direction of the apparatus (left and right direction, X direction in FIG. 1), the position of the pen tip 412 is in the X direction (left and right of the apparatus). However, this deviation is an integral multiple of one step in the drawing operation, and the drawing is performed by correcting the number of steps corresponding to the deviation according to the pen 41 used for drawing. The four pens 41 can draw at the same position.

Each pen carriage 43 is provided with a pen holder 431 that holds the pen 41 substantially vertically and a pen up / down mechanism 432 for moving the pen 41 up and down.
The pen holder 431 is a cylindrical portion in which the pen tip 412 and the pen shaft portion 411 are inserted and the pen 41 is held.
The pen up-and-down mechanism 432 is biased forward (to the right in FIG. 2 and FIG. 4A) by a spring 433, a cylindrical plunger 434 that reciprocates like a piston, and the attachment of the spring 433. A push type solenoid 435 that holds the plunger 434 rearward against the force (left direction in FIGS. 2 and 4A) and pushes the magnetic body out of the coil, or a pull type solenoid 435 that attracts the magnetic body from the coil, and the plunger A lever support shaft 436 attached to the moving end side of 434, a pen up / down lever 437 connected to the plunger 434 via the lever support shaft 436 and rotatable with respect to the rotation shaft 439; And a stopper 438 that is fixedly provided so as to restrict the upper limit of the rotation angle when the lever 437 rotates upward.
As shown in FIG. 4A, the pen up / down lever 437 is an L-shaped member in which the short arm 437a and the long arm 437b intersect at a substantially right angle, and is engaged with the lever support shaft 436 at the tip side of the short arm 437a. A long hole 437c to be stopped is formed. In addition, a pen holding portion 437d through which the pen 41 is inserted is provided on the distal end side of the long arm 437b. The pen holding portion 437d is formed in a ring shape having an inner diameter that is larger than the diameter of the pen shaft portion 411 and the pen tip 412 of the pen 41 and smaller than the diameter of the collar portion 413 of the pen 41, and the pen shaft portion 411 and The pen tip 412 is inserted, and the hook portion 413 is locked to be supported from below.
A rotation shaft 439 fixed to the pen carriage 43 side is inserted at the intersection of the short arm 437a and the long arm 437b in the pen up / down lever 437.

In this embodiment, when the solenoid 435 is driven, the plunger 434 is pulled backward against the urging force of the spring 433 as shown in FIG. The pen up / down lever 437 locked to the shaft 436 is held at a position where the long arm 437b is substantially horizontal. In this state, the pen tip of the pen 41 is lowered below the pen holder 431 of the pen carriage 43, and is in a drawing state in which the surface of the nail T and the drawing medium can be contacted. Further, in a state where the solenoid 435 is opened, the plunger 434 protrudes forward by the biasing force of the spring 433. At this time, the pen up / down lever 437 locked to the lever support shaft 436 of the plunger 434 rotates upward (counterclockwise) with the rotation shaft 439 as a fulcrum, and the long arm 437b comes into contact with the stopper 438 and stops. . Thereby, the collar part 413 of the pen 41 is flipped up by the pen up / down lever 437 (see FIG. 2). In this state, the pen tip of the pen 41 is raised above the pen holder 431 of the pen carriage 43 and is in a non-drawing state where it does not contact the surface of the nail T or the drawing medium.
As described above, the force for moving the plunger 434 back and forth by the solenoid 435 is converted into the force for moving the pen 41 up and down by the rotary shaft 439 and the pen up / down lever 437 that rotates around the rotation shaft 439.

Note that the pen 41 is only inserted and held in the pen holder 431 of the pen carriage 43 and is not fixed to the pen up / down lever 437 or the like, and is therefore biased downward by its own weight. As a result, the pen 41 can freely descend along the pen holder 431 until the collar portion 413 contacts the upper surface of the pen holding portion 437d, and when the pen tip 412 hits the surface of the nail T or the drawing medium, It is pressed against the surface of the nail T and the drawing medium by its own weight.
That is, when drawing with the pen 41 on the nail T, the pen tip 412 follows the surface shape (surface undulation, etc.) of the nail T (according to the curved surface and height of the nail T), and the printing finger U1 is placed. It is configured to be freely movable in the Z direction (that is, the vertical direction) orthogonal to the placed XY plane.
For example, when drawing in a region where the height of the nail T is low (for example, both ends in the width direction of the nail T), the pen 41 is lowered to a position near the position where the collar portion 413 contacts the upper surface of the pen holding portion 437d. When drawing in a region where the height of the nail T is high (for example, the central portion in the width direction of the nail T), the pen 41 rises following the height of the nail T, and the collar 413 It is separated from the upper surface of the pen holding part 437d.
Since the weight of the pen 41 is extremely light, such as several tens of grams, the user does not feel pain even when the pen tip 412 hits the nail T, and the writing pressure of the pen 41 is secured by its own weight. You can draw nail designs on top.

In the present embodiment, among the members constituting the pen up-and-down mechanism 432, the rotating shaft 436 and the stopper 438 are made of metal such as stainless steel, and the other members are lightweight such as resin and do not react to the magnet. Made of material. In addition, the material of the member which comprises the pen up-and-down mechanism 432 is not limited to what was illustrated here.
In this embodiment, the solenoid 435 is used as an actuator for moving the pen 41 up and down. However, the actuator for moving the pen 41 up and down is not limited to the solenoid 435. Since the pen 41 is lightweight, an actuator for moving the pen 41 up and down can be configured by various small driving devices in addition to the solenoid.

The unit support member 44 that supports the drawing head 42 is fixed to an X-direction moving unit 451 attached to the X-direction moving stage 45. The X-direction moving unit 451 is moved in the X direction along a guide (not shown) on the X-direction moving stage 45 by driving the X-direction moving motor 46, whereby the drawing head 42 is moved in the X direction (see FIG. 1 in the X direction and the left and right direction of the nail printing apparatus 1).
The X direction moving stage 45 is fixed to the Y direction moving portion 471 of the Y direction moving stage 47. The Y-direction moving unit 471 is configured to move in the Y direction along a guide (not shown) on the Y-direction moving stage 47 by driving the Y-direction moving motor 48, whereby the drawing head 42 is moved in the Y direction (see FIG. 2 in the Y direction, the front-rear direction of the nail printing apparatus 1).
In this embodiment, the X direction moving stage 45 and the Y direction moving stage 47 are configured by combining an X direction moving motor 46 and a Y direction moving motor 48 with a ball screw and a guide (not shown).
In the present embodiment, a head driving unit 49 as an XY driving unit that drives a drawing head 42 including a pen 41 for drawing on the nail T in the X direction and the Y direction by the X direction moving motor 46 and the Y direction moving motor 48. Is configured.

A solenoid 435, an X direction moving motor 46, and a Y direction moving motor 48 for moving the pen 41 up and down in the drawing unit 40 are connected to a drawing control unit 815 (see FIG. 5) of the control device 80 to be described later. It is controlled by the unit 815.
In the present embodiment, as will be described later, the drawing control unit 815 adjusts how to move the drawing head 42 to which the pen 41 is attached, according to the inclination angle of the surface of the nail T that is the drawing target.

As shown in FIGS. 1 and 2, the photographing unit 50 is provided in the upper machine casing 12.
That is, a substrate 13 is installed on the upper machine casing 12, and two cameras 51 as imaging devices are installed on the lower surface of the central portion of the substrate 13. The camera 51 preferably has, for example, about 2 million pixels or more.
The camera 51 captures the nail T of the printing finger U1 inserted in the finger receiving unit 31 and obtains a nail image (a finger image including an image of the nail T) that is an image of the nail T of the printing finger U1. It is.
In the present embodiment, the two cameras 51 are provided substantially side by side in the width direction of the nail T of the printing finger U1 inserted in the finger receiving unit 31. Of the two cameras 51, one of the cameras 51 is provided so as to face the bottom surface of the finger receiving portion 31, and photographs the nail T from directly above. The other camera 51 is arranged to be slightly inclined with respect to the bottom surface of the finger receiving portion 31 so as to follow the curved shape of the nail T, and photographs the nail T from an obliquely upward direction.
An illumination lamp (illumination device) 52 such as a white LED is installed on the substrate 13 so as to surround the camera 51. The illuminating lamp 52 illuminates the nail T of the printing finger U1 when the camera 51 takes a picture. The photographing unit 50 includes the camera 51 and the illumination lamp 52.
The photographing unit 50 is connected to a photographing control unit 811 (see FIG. 5) of the control device 80 to be described later, and is controlled by the photographing control unit 811.
Image data of an image photographed by the photographing unit 50 is stored in a nail image storage area 821 of the storage unit 82 described later.

In this embodiment, the nail | Tail T can be image | photographed from at least 2 different positions and angles with the two cameras 51 as an imaging device, and at least 2 nail images are acquired.
Then, based on these nail images, a nail information detection unit 512 described later detects nail information such as the contour of the nail T (the shape of the nail T) and the vertical position of the nail T. Further, the inclination angle detection unit 812a can detect the inclination angle of the surface of the nail T with respect to the XY plane (hereinafter referred to as “inclination angle of the nail T” or “nail curvature”) based on these nail images. It has become. That is, for example, by capturing an image from directly above the nail T and an image from the oblique upper direction of the nail T, not only the contour of the nail T but also the inclination angle of the surface of the nail T can be accurately detected. be able to. Here, the inclination angle of the claw T is an angle θ shown in FIG. Here, the angle θ is, for example, positive in the counterclockwise direction and negative in the clockwise direction.

Further, the control device 80 is installed on, for example, the substrate 13 disposed in the upper machine casing 12.
FIG. 5 is a principal block diagram showing a control configuration in the present embodiment.
As shown in FIG. 5, the control device 80 includes a control unit 81 configured by a CPU (Central Processing Unit) (not shown), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like (both not shown). And a storage unit 82 constituted by the computer.

The storage unit 82 stores various programs and various data for operating the nail printing apparatus 1.
Specifically, the ROM of the storage unit 82 includes a nail information detection program for detecting nail information such as the shape of the nail T and the inclination angle of the nail T from the nail image, and drawing data generation for generating drawing data. Various programs such as a program and a drawing program for performing a drawing process are stored. When these programs are executed by the control device 80, each unit of the nail print apparatus 1 is controlled in an integrated manner. .
In the present embodiment, the storage unit 82 includes a nail image storage area 821 for storing a nail image of the nail T of the user's print finger U1 acquired by the photographing unit 50, and a nail information detection unit 812 (an inclination angle detection unit 812a). Nail information storage area 822 for storing nail information detected by (including) and a nail design storage area 823 for storing image data of a nail design drawn on the nail T are provided.

In the present embodiment, the image data of the nail design stored in the nail design storage area 823 is drawn during the nail design, such as a portion to be painted and a portion to be drawn as a continuous pattern. Information specifying the processing content at the time is attached.
The portion to be drawn as a single pattern is, for example, a single pattern such as a ring-shaped pattern with a diameter of 1 mm or less, and the pen 41 moves along the width direction of the nail T when drawing. It is a small picture part whose distance is less than a predetermined limit value. Here, the predetermined limit value is set to, for example, about 0.8 to 1.2 mm, but is not limited thereto. Predetermined limit values may be set in accordance with the type of pattern, the thickness of the drawn line, and the like. In the case where the design is a continuous pattern portion in which misalignment or cuts are conspicuous, the pattern is drawn as a continuous pattern regardless of the distance to be drawn while moving the pen 41 along the width direction of the nail T. It may be treated as a power part.
Such a connected pattern portion, where the pen 41 moves along the width direction of the nail T and the moving distance is less than a predetermined limit value, is a part of the pattern portion or Even if the entire area is in a steeply inclined region, which will be described later, the drawing control unit 815, which will be described later, performs processing so as to draw in a continuous manner without performing the drawing direction restriction processing.

  When viewed functionally, the control unit 81 includes an imaging control unit 811, a nail information detection unit 812, a drawing data generation unit 813, a display control unit 814, a drawing control unit 815, and the like. The functions as the imaging control unit 811, the nail information detection unit 812, the drawing data generation unit 813, the display control unit 814, the drawing control unit 815, and the like are stored in the CPU of the control unit 81 and the program stored in the ROM of the storage unit 82. It is realized by the cooperation of.

The imaging control unit 811 controls the camera 51 and the illuminating lamp 52 of the imaging unit 50 and uses the camera 51 to detect a finger image including an image of the nail T of the printing finger U1 inserted into the finger receiving unit 31 (hereinafter referred to as “nail image”). ")").
In the present embodiment, the imaging control unit 511 causes the two cameras 51 to acquire at least two nail images from different positions and angles (for example, directly above the nail T and obliquely above the nail T).
The image data of the nail image acquired by the imaging unit 50 may be stored in the storage unit 82.

The nail information detecting unit 812 detects nail information about the nail T of the printing finger U1 based on the image of the nail T of the printing finger U1 inserted into the finger receiving unit 31 photographed by the camera 51. In the present embodiment, the nail information detection unit 812 includes an inclination angle detection unit 812a that detects the inclination angle of the nail T.
Here, the nail information is, for example, the contour of the nail T (nail shape, horizontal position of the nail T), the height of the nail T (vertical position of the nail T, hereinafter “vertical position of the nail T” or simply “ It is also referred to as “the position of the nail T”. Note that the inclination angle (nail curvature) of the nail T is an angle with respect to the horizontal plane in the width direction of the nail T (that is, the XY plane of the finger placement portion 116a on which the printing finger U1 is placed) as described above. The inclination angle is an angle θ shown in FIG. In the present embodiment, the nail information detection unit 812 including the inclination angle detection unit 812a, based on the nail image, out of the nail information, the outline of the nail T (nail shape) and the inclination angle of the nail T (nail curvature). Is supposed to be detected.

Specifically, the nail information detection unit 812 detects the contour (shape and size) and position of the nail T from the nail image of the nail T of the printing finger U1 acquired by the camera 51, and this contour is represented by x, Acquired as information represented by the y coordinate or the like. For example, the nail information detection unit 812 obtains the outline (shape) of the nail T based on the color difference between the nail T and the other finger part from the nail image of the nail T of the printing finger U1 acquired by the camera 51, for example. It is to detect. In addition, the method in which the nail | claw information detection part 812 detects the outline (shape) of the nail | Tail T is not specifically limited, It is not restricted to what was mentioned here.
Further, the inclination angle detection unit 812a detects the inclination angle (nail curvature) of the nail T based on at least two nail images photographed by the two cameras 51.
The inclination angle detection unit 812a is based on, for example, the difference in shadows that appear in two nail images taken from different positions and angles (for example, directly above the nail T and diagonally above the nail T) by the two cameras 51. The inclination angle (claw curvature) of the nail T is detected. Note that the method by which the nail information detection unit 812 detects the inclination angle (nail curvature) of the nail T is not particularly limited, and is not limited to that described here.

The drawing data generation unit 813 generates data for drawing applied to the nail T of the printing finger U1 by the drawing head 42 based on the nail information detected by the nail information detection unit 812.
Specifically, the drawing data generation unit 813 performs alignment processing by enlarging, reducing, cutting out, etc., nail design image data based on the shape of the nail T detected by the nail information detection unit 812, and the like. Generate data for rendering.
In the present embodiment, the drawing data generation unit 813 performs curved surface correction of nail design image data according to the inclination angle (nail curvature) of the nail T detected by the inclination angle detection unit 812a.

  The display control unit 814 controls the display unit 26 to display various display screens on the display unit 26. In the present embodiment, the display control unit 814 causes the display unit 26 to display, for example, a nail design selection screen, a thumbnail image for design confirmation, a nail image obtained by photographing the printing finger U1, various instruction screens, and the like. It has become.

The drawing control unit 815 outputs the drawing data generated by the drawing data generation unit 813 to the drawing unit 40, and the solenoid 435 of the drawing unit 40 in the X direction so as to perform drawing according to the drawing data on the nail T. A control unit that controls the moving motor 46 and the Y-direction moving motor 48.
In the present embodiment, the drawing control unit 815 is configured so that the direction in which the inclination angle of the surface of the nail T detected by the inclination angle detection unit 812a is less than a predetermined threshold value is in any direction regardless of the inclination direction. The pen 41 can be moved.
On the other hand, in a region where the tilt angle in the width direction of the surface of the nail T detected by the tilt angle detection unit 812a is equal to or greater than a predetermined threshold (a “steep tilt region” described later), the drawing control unit 815 The pen 41 is moved from the higher side of the nail T from the XY plane (that is, the finger placement portion 116a) toward the lower side, and the pen 41 is moved from the lower side of the nail T toward the higher side. The XY drive unit (that is, the X-direction movement motor 46 and the Y-direction movement motor 48 constituting the head drive unit 49) is controlled so as to perform the drawing direction restriction process that is not moved.
Here, what value the threshold value of the tilt angle can be set as appropriate, and the optimum value varies depending on, for example, the type and form of the pen 41, but generally the threshold value is ± 40 ° to ± 50 °. It has been found experimentally. In the following, for convenience, the threshold value is assumed to be ± 45 °.

Here, the pen 41 is drawn by moving from the end of the relatively low nail T toward the center of the relatively high nail T (that is, the pen 41 climbs the inclined surface of the nail T). And the case where the pen 41 moves down the inclined surface of the nail T will be described.
When the pen 41 is moved so as to climb the inclined surface of the nail T, the nail T may be pushed in the horizontal direction by the pen 41. When the nail T is strongly pushed by the pen 41 in the horizontal direction, As a result, the printing finger U1 may move, and the finished quality of the nail print deteriorates.
That is, when a horizontal force Pn is applied to the pen 41 and the pen 41 moves to the right in the drawing, the surface of the nail T is placed on the XY plane on which the printing finger U1 is placed as shown in FIG. When the angle (inclination angle of the nail T) θ is 0 °, the force Pn from the pen 41 is a force component P1 horizontal to the nail T, and the force pushing the nail T in the vertical direction is the weight of the pen 41. Only. In FIG. 6A to FIG. 6E, the force applied to the nail T by the weight of the pen 41 is omitted for convenience.
On the other hand, as shown in FIG. 6B to FIG. 6D, when the inclination angle θ of the nail T is 30 °, Sin (30) = 0.50 of the force Pn from the pen 41, that is, Half of the force becomes a force component P2 that pushes the inclined surface of the nail T in the vertical direction perpendicular to the inclined surface of the nail T. When the inclination angle θ of the nail T = 45 °, Sin (45) = 0.7071 of the force Pn from the pen 41, that is, almost 70% of the force becomes a force component P2 that pushes the inclined surface of the nail T in the vertical direction. . When the inclination angle θ of the nail T = 60 °, Sin (60) = 0.8660 becomes a force component P2 that pushes the inclined surface of the nail T in the vertical direction, and the force Pn from the pen 41 is 80% or more. It will hang on the nail T. Thus, as the inclination angle θ of the nail T increases, the force component P2 that pushes the inclined surface of the nail T in the vertical direction increases, and the force pushing the nail T in the horizontal direction by the vertical force component P2 increases. To do. This causes the printing finger U1 to move.
On the other hand, when the pen 41 moves and draws down the inclined surface of the nail T, it becomes as shown in FIG. That is, when a horizontal force Pn ′ is applied to the pen 41 and the pen 41 moves leftward in the drawing, the force component that pushes the inclined surface of the nail T in the vertical direction by this force Pn ′ is the inclination angle θ of the nail T. It does not occur regardless of the value of. At this time, the force that pushes the nail T in the vertical direction is only the weight of the pen 41, and the pen 41 slides down the inclined surface of the nail T only by its own weight. Therefore, when the pen 41 moves and draws so as to move down the inclined surface of the nail T, the printing finger U1 does not move regardless of the value of the inclination angle θ of the nail T.

  For this reason, in this embodiment, the drawing control unit 815 has a region where the absolute value of the inclination angle θ in the width direction of the surface of the nail T detected by the inclination angle detection unit 812a is 45 ° or more, that is, FIGS. 9, a region surrounded by an edge Ea on the left side of the nail T and a boundary line La having an inclination angle θ of 45 ° (hereinafter referred to as “steeply inclined region PA”), and a right side of the nail T in the drawing. For a region surrounded by the edge Eb and a boundary line Lb having an inclination angle θ of −45 ° (hereinafter referred to as “steeply inclined region PB”), the pen 41 moves so as to climb the inclined surface of the nail T. As shown in FIG. 6E, the pen 41 is moved from the higher nail T height to the lower nail T, and the nail T height is moved from the lower nail T height to the higher. The drawing direction restriction process is performed so as not to cause this. Accordingly, it is possible to prevent the nail T from being pushed in the horizontal direction by the pen 41 and to prevent the printing finger U1 from moving during drawing.

Here, specific drawing control by the drawing control unit 815 will be described with reference to FIGS. 7 to 9.
Note that the claw T generally has a shape in which the central portion in the width direction is relatively high, the height decreases toward the end in the width direction, and the inclination angle in the width direction increases. For this reason, the following embodiment shows an example in which the drawing direction restriction process is performed when a line is drawn while moving the pen 41 along the width direction of the nail T. In addition, since the shape of the nail | Tail T is various, the center part of the length direction of the nail | claw T is comparatively high, for example, the height becomes low, and the inclination | tilt angle of a length direction becomes low. Something that gets bigger is also envisaged. Therefore, the above drawing direction restriction process is performed not only when drawing a line while moving the pen 41 along the width direction of the nail T but also when drawing a line while moving the pen 41 along the length direction. You may do it.

7 and 8 illustrate the case where a French nail for coloring the tip of the nail T is formed. The French nail is formed by filling the tip portion of the nail T with a predetermined painted region (a region indicated by shading in FIGS. 7 and 8).
In the case of forming a French nail, the drawing control unit 815 first performs a contour drawing process for drawing the outline of the painted area by moving the pen 41 along the width direction of the nail T as shown in FIG. . At this time, in the region where the absolute value of the inclination angle of the surface of the nail T is less than 45 ° (the central portion in the width direction of the nail T in FIG. 7 and the like), the drawing direction is not particularly restricted, 41 may be moved, the drawing control unit 815 moves the pen 41 so that drawing can be performed as efficiently as possible. On the other hand, in a region where the absolute value of the tilt angle of the surface of the nail T is 45 ° or more (steep tilt region), the drawing control unit 815 has the XY plane of the nail T (that is, the finger placement unit 116a). A drawing direction restriction process is applied in which the pen 41 is moved from the higher side to the lower side, and the pen 41 is not moved from the lower side of the nail T to the higher side.
That is, first, with respect to the steeply inclined area PA of the central portion of the nail T and the one side portion (left side portion in FIG. 7) of the nail T where the absolute value of the inclination angle θ of the surface of the nail T is less than 45 °, the nail T A contour (line 11 in FIG. 7) is drawn that delineates the upper side of the painted area from one central end to one side end (left end in FIG. 7).
Next, with respect to the steeply inclined region PB of the central portion of the nail T and the other side portion (right side in FIG. 7) of the nail T where the absolute value of the inclination angle θ of the surface of the nail T is less than 45 °, A contour (line 12 in FIG. 7) is drawn that delineates the lower side of the paint area from the center to the other side end (right end in FIG. 7).
Further, with respect to the steeply inclined region PB, the remaining contour (line 13 in FIG. 7) that draws the upper side of the painted region is drawn from the starting point of the line 11 toward the opposite side end (right end in FIG. 7). Finally, with respect to the steeply inclined area PA, the remaining contour (line 14 in FIG. 7) demarcating the lower side of the painted area from the starting point of the line 12 toward the opposite side end (left end in FIG. 7). Draw. As a result, a contour that describes the filled region is drawn. Note that the order in which the lines 11 to 14 are drawn is not limited to the example illustrated here.
Thereafter, the drawing control unit 815 sets the inner region of the contour in the length direction (vertical direction in FIGS. 7 and 8) of the nail T orthogonal to the width direction of the nail T (horizontal direction in FIGS. 7 and 8). The XY drive unit (that is, the X-direction movement motor 46 and the Y-direction movement motor 48) is controlled so as to perform the painting process for drawing while moving the pen 41.
Specifically, as shown in FIG. 8, the drawing control unit 815 first places the pen 41 on the length of the nail T in a steeply inclined area PA where the absolute value of the inclination angle θ of the surface of the nail T is 45 ° or more. While being reciprocated in the vertical direction, the nail T is applied from the higher to the lower side, that is, from the center of the nail T to the side end region on one side (in FIG. l5-l7). Next, with respect to the remaining area, the pen 41 is similarly reciprocated in the length direction of the nail T from the part adjacent to the steeply inclined area PA where the painting process has already been completed toward the other side end area. A filling process is performed (lines l8 to ln in FIG. 8).

In the present embodiment, the drawing control unit 815 does not perform the drawing direction restriction process on the portions to be drawn as a continuous pattern, and all or a part of the pattern is applied to the steeply inclined region and is drawn in a continuous manner. Even when a portion that climbs a steep slope occurs, if the pattern is relatively small, the XY drive unit (that is, the X-direction movement motor 46 and the Y-direction movement that constitute the head drive unit 49) is drawn so as to be drawn in a continuous manner. The motor 48) is controlled.
For this reason, the drawing control unit 815 has a region where the inclination angle of the surface of the nail T detected by the inclination angle detection unit 812a is equal to or larger than a predetermined threshold (in this embodiment, the inclination angle θ is | θ | ≧ 45 °. Even in the case of drawing a line while moving the pen 41 along the width direction of the nail T in a certain steeply inclined area PA, PB), it is a pattern part drawn in a continuous manner and is 0.8 to 1 In the case where the nail T is composed of a very short line of about 2 mm, the pen 41 can be moved from the lower side to the higher side of the nail T from the XY plane.
Even when a fine pattern is drawn and the movement distance of the pen 41 is short, the drawing direction restriction process is always applied to move the pen 41 from the higher nail T to the lower one. There are cases where it is not possible to draw beautifully, for example, because the divided parts do not connect well and the design is shifted.
For example, as shown in FIG. 9, when the nail design drawn on the nail T includes a fine pattern such as a lace pattern, a portion of a fine pattern portion such as a small ring-shaped pattern is taken from the XY plane of the nail T. When there is a part that climbs from the lower side to the higher side (for example, refer to Pt1 to Pt6 in FIG. 9), when the drawing direction restriction process is applied thereto, (Pt1) to (Pt3) shown on the left side of FIG. As shown in FIG. 10, each picture must be divided into two or more for drawing (in FIG. 10, Pt1 to Pt3 in FIG. 9 are illustrated as FIGS. 10 (Pt1) to (Pt3). The same applies to Pt4 to Pt6 in FIG. 9). In this case, the lines may not be accurately connected at the divided portions, and the pattern may shift.
On the other hand, even if the pen 41 partially moves from the lower side of the nail T to the higher side, the drawing direction restriction process is not applied and (Pt1) to (Pt3) shown on the right side of FIG. ), When drawn as a continuous pattern, the pattern does not shift and a beautiful finish can be obtained. In addition, when the movement distance of the pen 41 is short, such as a part of a fine pattern, the user does not feel that the nail is pushed so strongly even if the pen 41 climbs from the lower nail T to the higher nail T. For this reason, even if a pattern is drawn in a row, the finger is not pushed and moved.
In this case, the drawing control unit 815 may control the head driving unit 49 so as to slow down the moving speed of the pen 41 when the pen 41 climbs from the lower nail T to the higher one. When the movement speed of the pen 41 is decreased, the work amount per unit time from the pen 41 to the nail T is reduced as compared with the case where the adjustment of the movement speed is not performed. In addition, the pen 41 is likely to climb the inclined surface by slowing down the moving speed of the pen 41. That is, the horizontal force Pn applied to the pen 41 shown in FIGS. For this reason, even when the pen 41 is drawn from a low position to a high position of the nail T (that is, when climbing an inclination), the feeling that the nail T is pushed by the pen 41 can be reduced, and the burden on the user is further reduced. In addition, it is possible to more reliably prevent the printing finger U1 from moving during drawing by being pressed with the pen 41.
In the present embodiment, as described above, in the nail design image data stored in the nail design storage area 823, which part is to be subjected to the painting process during the nail design and which part is the same. Information that specifies the processing content when drawing is attached, such as whether it is a part to be drawn as a connection pattern, is attached as supplementary information. The drawing control unit 815 determines whether or not to apply the drawing direction restriction process and whether or not to perform the painting process while referring to the incidental information of the image data of the nail design.

  Next, the operation and usage method of the nail print apparatus 1 in the present embodiment will be described.

When drawing with the nail printing apparatus 1, the user first turns on the power switch to activate the control apparatus 80.
The display control unit 814 causes the display unit 26 to display a design selection screen. The user operates the operation buttons 251 and the like of the operation unit 25 to select a desired nail design from among a plurality of nail designs displayed on the design selection screen, whereby a selection instruction signal is output from the operation unit 25. The nail design to be drawn on the nail T is selected.
When the nail design is selected, the control unit 81 causes the display unit 26 to display an instruction screen for prompting the user to set the pen 41 necessary for drawing the selected nail design on the predetermined pen carriage 43 of the drawing head 42. Display. For example, when red ink or glitter gold ink is necessary, the display unit 26 instructs which pen carriage 43 should be attached to which pen carriage 43. The user sets a predetermined type of pen 41 on a predetermined pen carriage 43 in accordance with an instruction displayed on the display screen. Note that the user may intentionally set a pen 41 different from the instruction to realize a nail design with a favorite color or texture.
It should be noted that the control unit 81 may be configured to be able to read which type of pen 41 is set on the pen carriage 43 by a bar code or the like. In this case, the pen carriage 43 is set. A nail design that can be drawn by the pen 41 may be displayed on the design selection screen of the display unit 26, and the user may be allowed to select a nail design from the screen.
Next, the user inserts the printing finger U1 into the finger receiving unit 31, inserts the non-printing finger U2 into the finger retracting unit 32, fixes the printing finger U1, and then operates the drawing switch.
For example, FIG. 3 shows an example in which the ring finger of the left hand is inserted into the finger receiving unit 31 as the printing finger U1 and the other fingers are inserted into the finger retracting unit 32 as the non-printing finger U2.

When an instruction is input from the drawing switch, before the drawing operation is started, the shooting control unit 811 first controls the shooting unit 50 and illuminates the printing finger U1 with the illumination lamp 52 and the printing fingers with the two cameras 51. U1 is photographed. Thereby, the imaging control unit 811 acquires at least two images (nail images) of the nail T of the printing finger U1 inserted into the finger receiving unit 31.
Next, the nail information detection unit 812 detects the outline (nail shape) of the nail T based on the nail image. Further, the inclination angle detection unit 812a detects the inclination angle (nail curvature) of the nail T based on the nail image.

When the contour (nail shape) of the nail T and the inclination angle (nail curvature) of the nail T are detected by the nail information detection unit 812 and the inclination angle detection unit 812a, the drawing data generation unit 813 is based on the nail information. The nail design image data is fitted to the nail T. The drawing data generation unit 813 performs curved surface correction on the image data of the nail design based on the nail information. Thereby, drawing data is generated.
Further, the drawing control unit 815 moves the drawing unit 40 to the pen custom writing unit 61 and drives the solenoid 435 of the pen carriage 43 that holds the pen 41 before drawing on the nail T, thereby drawing the pen 41. Make it possible. Then, running-in is performed to draw a predetermined image such as “◯” or “∞” on the drawing medium. The break-in may be performed only for the pen 41 necessary for drawing the selected nail design, or may be performed for all the pens 41.
When the drawing data is generated and the break-in is completed, the drawing control unit 815 outputs the drawing data to the drawing unit 40, drives the solenoid 435 of the pen carriage 43 that holds the pen 41 necessary for drawing, and moves the pen 41. The drawing state is set, and the drawing head 42 is appropriately moved in the XY directions based on the drawing data to cause the nail T to draw. At this time, the pen 41 is pressed against the surface of the nail T by its own weight and performs drawing while moving up and down following the surface shape of the nail T.

While drawing with the pen 41, the drawing control unit 815 tilts the surface of the nail T detected by the tilt angle detection unit 812a when drawing the pen 41 by moving the pen 41 by a predetermined distance or more in the width direction of the nail T. In a region where the angle is greater than or equal to a certain value (in this embodiment, steeply inclined regions PA and PB where the inclination angle θ is | θ | ≧ 45 ° (see FIG. 7A, etc.)), from the XY plane of the nail T The XY drive unit (in order to perform the drawing direction restriction process, in which the pen 41 is moved from the higher one to the lower one and the pen 41 is not moved from the lower one to the higher one. The X direction moving motor 46 and the Y direction moving motor 48) constituting the head driving unit 49 are controlled.
Also, the drawing control unit 815 refers to the supplementary information of the image data of the nail design, and determines whether there is a painting area that needs to be painted, and whether to perform the drawing direction restriction process.
If there is a filled area, the drawing control unit 815 controls the drawing unit 40 to apply a drawing direction restriction process to draw a contour that draws the filled area. Next, a painting process is performed in which the area inside the contour is painted while moving the pen 41 in the length direction of the nail T inside the contour.
In addition, when there is a portion of the connected pattern portions in which the movement distance of the pen 41 in the width direction of the nail T is equal to or less than a predetermined value, the drawing control unit 815 does not perform the drawing direction restriction process for the portion. The drawing unit 40 is controlled so that even if there is a part where the pen 41 climbs from the lower nail T to the higher one in the steeply inclined areas PA and PB, the drawing unit 40 is drawn. This prevents the line from being shifted or interrupted in the middle of the pattern or the like.

When drawing is performed on a plurality of fingernails T, after the drawing process for one fingernail T is completed, the finger of the drawn nail T is removed from the finger receiving unit 31 and then drawn. The finger of the power nail T is inserted into the finger receiving unit 31 as the printing finger U1, the nail image of the nail T is acquired, and the above processing is repeated.
When the pen 41 is replaced, the drawing control unit 815 moves the drawing head 42 to a position corresponding to the pen replacement lid unit 23. When the user opens the pen replacement lid 23 in this state, the pen 41 can be taken out and replaced.

As described above, according to the nail print apparatus 1 of the present embodiment, the inclination angle of the surface of the nail T of the printing finger U1 with respect to the XY plane is detected, and the detected inclination angle of the surface of the nail T is relatively large. Then, the X-direction movement motor 46 and the Y-direction movement that constitute the head drive unit 49 perform the drawing direction restriction process in which the pen 41 is moved from the higher to the lower height of the nail T from the higher XY plane. The motor 48 is controlled.
For this reason, at the end of the nail T having a large inclination angle, the pen 41 can be prevented from moving from a low place to a high place of the nail T (that is, the pen 41 does not climb the inclined surface). . Thereby, it is possible to prevent the nail T from being pushed by the pen 41, and the burden on the user can be reduced, and the printing finger U1 can be prevented from moving during drawing by being pushed by the pen 41. Can do.
Also, when filling a predetermined filled area, the drawing control unit 815 draws the outline of the filled area along the width direction of the nail T, and then draws the inner area of this outline in the width direction of the nail T. The XY drive unit (the X-direction movement motor 46 and the Y-direction movement motor 48 constituting the head drive unit 49) is controlled so as to perform the painting process while drawing the pen 41 in the length direction of the nail T orthogonal to To do. This prevents the pen 41 from moving from a lower nail T height to a higher nail T even when a predetermined painted area is filled. Can be prevented.
Furthermore, in the present embodiment, the drawing direction restriction process is not applied to portions to be drawn as a continuous pattern. In such a connected pattern portion where the pen 41 moves along the width direction of the nail T and the moving distance is less than or equal to a predetermined distance, the inclination angle of the surface of the nail T is constant. By not applying the drawing direction restriction process even in the above region, it is possible to prevent lines from being shifted or interrupted in the middle of a pattern or the like. In addition, when the movement distance of the pen 41 is short, even if the pen 41 climbs the inclined surface of the nail T, the pen 41 does not feel that it is pushed so much, so the finger does not move, and a beautiful nail print Can be printed.
In addition, since drawing is performed using the pen 41, various color materials such as high viscosity ink, gold-silver glitter ink, and white ink are used as compared with the case of using a conventional inkjet print head. Ink containing can be widely used. As a result, the color of the ink can be beautifully developed without applying a white background, etc., and the labor of painting the background can be saved, and the design utilizing the color of the nail T can be drawn. Because it can, the range of nail designs that can be drawn is expanded.
Also, when applying an undercoat, topcoat, or the like, or when it is desired to apply color to the entire nail T, use a thick pen 41 or a brush pen type pen 41 with a nib 412 to apply quickly and evenly. Therefore, it is possible to save the user the trouble of painting the background and the like, and it is possible to finish the nail art beautifully without causing deterioration in image quality due to unpainted or uneven painting.
In addition, since the ink that can be used is not limited, the same variation as that applied at the nail salon, such as a luxurious design using lame ink, a design with a sense of thickness and gloss, and a luxurious finish An abundant and beautifully finished nail print can be easily applied to the nail T by the nail printing apparatus 1.
In addition, since a highly viscous ink such as UV curable gel nail can be used, it is possible to realize a nail art having a good finish and a beautiful finish, which is applied in a nail salon.
In addition, since the nail information detection unit 812 detects the shape of the nail as nail information based on the nail image, the nail information can be drawn according to the user's nail T, and a clean nail art with no unpainted or protruding parts Can be realized.

  Although the embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and various modifications can be made without departing from the scope of the present invention.

For example, in this embodiment, the nail information detection unit 812 detects the inclination angle of the nail T, and the steeply inclined area PA is defined as an area surrounded by the edge Ea of the nail T and a boundary line La having an inclination angle θ of 45 °. Although the steeply inclined region PB is a region surrounded by the edge Eb of the nail T and the boundary line Lb having the inclination angle θ of −45 °, the method of setting the steeply inclined region is not limited to this.
For example, the nail information detecting unit 812 classifies the curved shape of the nail T into a plurality of patterns such as “flat type”, “normal type”, “normal type”, “normal type”, and “round type”. Then, it may be determined in advance what percentage of the width dimension from both ends in the width direction is the boundary line, and the steeply inclined region may be set based on the detected contour of the nail T.
For example, in this embodiment, when a predetermined painted area is filled, such as when a French nail is formed at the tip of the nail T, the outline of the painted area is first drawn, and then the inside of the outline is drawn on the nail. Although the case where the method of drawing while moving the pen 41 in the length direction of T is illustrated (see FIGS. 7 and 8), the method of processing when filling a predetermined filled area is exemplified here It is not limited to.
For example, as shown in FIG. 11, a steeply inclined region on one side of the nail T (a steeply inclined region PB on the right side in FIG. 11) is applied from a portion adjacent to the center of the nail T toward the side end of the nail T. Draw a line (line 11 in FIG. 11) that delineates the upper side of the crushed area, and then the central part of the nail T where the inclination angle θ of the surface of the nail T is | θ | <45 ° and the other side of the nail T For the steeply inclined region (left steeply inclined region PA in FIG. 11), a line l2 is drawn from the starting point of the line l1 toward the opposite side end. Thereby, the outline which delineates the upper side of the painted area is drawn. Further, while shifting the position of the pen 41 step by step in the length direction of the nail T, the lines l3, l4, lines l5, l6,... Are drawn in the same manner, and finally the lower side of the painting area is drawn. Lines ln-1, ln are drawn as contours. As described above, the painting region may be filled by repeating drawing to draw a line while moving the pen 41 along the width direction of the nail T while applying the drawing direction regulation processing.
In addition, when drawing while moving the pen 41 along the width direction of the nail T in this way, both ends of the nail T in the width direction from the portion with the highest height from the XY plane at the center in the width direction of the nail T. The pen 41 may be moved only toward the portion (the portion having a low height).
Alternatively, the process of drawing the outline of the painted area may be omitted, and the entire painted area may be painted while moving the pen 41 in the length direction of the nail T.

In the present embodiment, the nail design image data stored in the nail design storage area 823 is drawn as a pattern that is a part to be subjected to the painting process during the nail design. Whether drawing processing is performed, such as whether it is a portion to be drawn, is attached as supplementary information, and the drawing control unit 815 applies drawing direction restriction processing while referring to the supplementary information of the image data of the nail design However, the method of determining what kind of drawing processing is to be performed is not limited to this.
For example, the image data of the nail design does not have additional information, and a threshold for extracting a pattern for which the drawing direction restriction process is not performed (for example, a threshold for the length of a line constituting the pattern) or a painting process is performed. A threshold value for extracting a portion to be performed is stored in the storage unit 82 and the like, and the drawing control unit 815 determines whether or not the threshold value is exceeded for each drawing portion and determines what drawing processing is performed. May be.

Further, the configuration of the drawing unit 40 is not limited to that shown in the present embodiment.
For example, the nail printing apparatus includes a rotary pen carriage that can hold a plurality of (for example, eight) pens, a carriage rotation mechanism that rotates the pen carriage, and a pen that moves the pen held by the pen carriage up and down. You may provide the drawing part provided with an up-and-down mechanism.
As described above, when the drawing unit includes a rotary pen carriage capable of holding a plurality of pens, drawing can be performed by simultaneously holding a plurality of types of pens. For this reason, for example, a rainbow pattern that requires seven colors of ink, a gradation pattern that requires a plurality of inks having different densities in stages, and an argyle pattern that uses various colors are required. Even complicated and delicate designs can be drawn easily.

  In the present embodiment, the configuration using the solenoid as the pen up / down mechanism for moving the pen 41 up and down is illustrated, but the configuration of the pen up / down mechanism is not limited to this. For example, you may comprise with a step motor, DC motor, a motor, a ball screw, etc.

In this embodiment, the X-direction moving stage 45 and the Y-direction moving stage 47 for moving the drawing head 42 include an X-direction moving motor 46 and a Y-direction moving motor 48 that are step motors, a ball screw and a guide (not shown). However, the configuration for moving the drawing head 42 is not limited to this.
The X-direction movement motor 46 and the Y-direction movement motor 48 may be anything that can move the drawing head 42 back and forth and right and left as desired. For example, a shaft, a guide and a wire used in a conventional inexpensive printer or the like. A configuration using a configured mechanism may be used, or a configuration using a servo motor or the like may be used.

In the present embodiment, the pen that draws with ink is illustrated, but the pen attached to the drawing head is not limited to the one that draws ink.
For example, a pen containing colorless or colored transparent liquid paste is attached to the drawing head, and after drawing using this, the powdery lame is sprinkled before the glue dries, or rhinestones are attached. By doing so, a more luxurious nail design can be realized.
Alternatively, a pen containing a liquid containing fragrance or the like may be attached to the drawing head, and drawing may be performed using the pen so that a scented nail print can be enjoyed.

Further, in the present embodiment, an example in which a plurality of pens, such as four, can be mounted on the drawing head at the same time has been illustrated. However, for example, only one pen can be mounted on the drawing head, and the user manually operates as necessary. It is also possible to replace the pen with In this way, the nail printing apparatus 1 having a pen can be realized at low cost.
Further, a mechanism for automatically exchanging a pen attached to the drawing head may be mounted. In this case, for example, a plurality of pens are held in the standby space, and the pens are automatically selected from here and mounted on the drawing head. With such a configuration, the number of pens that can be held in the apparatus can be further increased.

  Further, in the present embodiment, the case where a drawing medium that is a piece of paper is used for the pen customs is illustrated, but the drawing medium is not limited to paper. The drawing medium may be a roll-shaped medium. In this case, a medium feeding mechanism for feeding and winding the drawing medium automatically or manually is provided. Further, when the drawing medium is a roll-shaped medium, a medium attachment / detachment opening for attaching / detaching the roll-shaped drawing medium is provided instead of the medium insertion / exit 24.

  In this embodiment, the drawing data generation unit 813 performs surface correction on the image data of the nail design and generates drawing data. However, the drawing data generation unit 813 generates the drawing data. It is not an essential component of the present invention. For example, without generating drawing data separately, the drawing control unit 815 outputs the nail design image data to the drawing head while appropriately converting the image data using a LUT (Lookup Table) or the like to perform drawing in accordance with the nail shape. Drawing control may be performed.

  In this embodiment, the shape of the nail T is detected as the nail information, and the drawing data is generated based on the detected shape. However, the detection of the nail shape is not an essential component of the present invention. . For example, if it is not essential to extract the contour of the nail T when drawing, as in the case of drawing a one-point pattern in the middle of the nail T, it is necessary to accurately recognize the shape of the nail T No, drawing can be performed without detecting the nail shape.

  The imaging device is not limited to the camera 51 that captures a still image, and may be an apparatus that can capture a moving image. In this case, a moving image is captured by the camera, and an image on the upper surface of the nail T is appropriately cut out from the captured moving image and used for detection of nail information.

  Further, in the present embodiment, the case where the nail image storage area 821, the nail information storage area 822, and the nail design storage area 823 are provided in the storage unit 82 of the control device 80 is described as an example. The nail information storage area 822 and the nail design storage area 823 are not limited to those provided in the storage unit 82 of the control device 80, and a separate storage unit may be provided.

In this embodiment, the nail printing apparatus 1 that performs printing sequentially by inserting fingers one by one into the apparatus has been described as an example. However, the present invention is applied to an apparatus that can perform printing on a plurality of fingers simultaneously. It is also possible to apply.
For example, it is possible to simultaneously perform drawing on a plurality of printing fingers U1 by increasing the drawing range by expanding the pen operating range.

Although several embodiments of the present invention have been described above, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and equivalents thereof. .
The invention described in the scope of claims attached to the application of this application will be added below. The item numbers of the claims described in the appendix are as set forth in the claims attached to the application of this application.
[Appendix]
<Claim 1>
A finger placement unit having a planar placement surface on which a finger of a nail to perform drawing is placed;
A drawing tool for drawing a pattern on the nail in contact with the fingernail placed on the placement surface;
A drive unit that moves the drawing tool according to the pattern when performing the drawing;
A control unit for controlling the driving unit;
With
The nail surface includes a first region on one end side in the width direction of the nail, a second region on the other end side in the width direction of the nail, and a third region sandwiched between the first region and the second region. Divided into areas,
The first area includes an edge on the one end side of the nail, and is an area provided on the one end side from a center line passing through the center in the width direction of the nail according to the curved shape of the nail,
The second region includes an edge on the other end side of the nail, and is a region provided on the other end side from the center line according to the curved shape of the nail,
In the first area and the second area on the surface of the nail, the control unit does not move the drawing tool from a lower side to a higher side from the placement surface of the nail. A nail printing apparatus that controls the drive unit to perform drawing while performing a restriction process.
<Claim 2>
The controller is
When the pattern has a shape drawn across the first area and the third area, the drawing direction restriction process is performed to move the drawing tool in the third area. In the same way as the movement of the drawing tool in the first region, control to draw the picture continuously in the first region and the third region,
When the pattern has a shape drawn across the second area and the third area, the drawing direction restriction process is performed to move the drawing tool in the third area. The control is performed so that the pattern is continuously drawn in the second area and the third area, in the same manner as the movement of the drawing tool in the second area. The nail printing apparatus according to 1.
<Claim 3> After performing the contour drawing process for moving the drawing tool along the contour of the painted region and drawing the contour when the pattern has a painted region, Controlling the drive unit to perform a painting drawing process for drawing the inner region of the contour while moving the drawing tool in the width direction of the nail and the length direction of the nail;
In the contour drawing process and the filling drawing process, when the drawing area is included in the first area or the second area, the drawing direction restriction process is performed in the first area or the second area. The nail printing apparatus according to claim 1 or 2.
<Claim 4>
The controller is
When the filled area includes a shape drawn across the first area and the third area, the drawing direction restriction process is performed to determine how to move the drawing tool in the third area. Controlling the drawing area to be drawn continuously in the first area and the third area in the same manner as the movement of the drawing tool in the first area to be performed,
When the filled area includes a shape drawn across the second area and the third area, the drawing direction restriction process is performed to determine how to move the drawing tool in the third area. In the same manner as the movement of the drawing tool in the second area to be performed, control is performed so that the painted area is continuously drawn in the second area and the third area. The nail printing apparatus according to claim 3.
<Claim 5>
The first region is surrounded by an edge on the one end side of the nail and a first boundary line provided on the surface of the nail along the length direction of the nail from the center line to the one end side. Area,
The second region includes an edge on the other end side of the nail and a second boundary line provided on the surface of the nail along the length direction of the nail from the center line to the other end side. The nail printing apparatus according to claim 1, wherein the nail printing apparatus is an enclosed area.
<Claim 6>
Furthermore, it has an inclination angle detection unit that detects an inclination angle of the surface of the nail with respect to the placement surface,
The nail print apparatus according to claim 5, wherein the first boundary line and the second boundary line are provided at a location where a value in the width direction of the nail of the inclination angle is a predetermined threshold value.
<Claim 7>
The control unit controls the driving unit to perform the drawing direction restriction process even in a region of the nail surface where the value of the inclination angle in the length direction of the nail is equal to or larger than the threshold value. The nail printing apparatus according to claim 6, wherein
<Claim 8>
In a printing method of a nail printing apparatus, in which a drawing tool is brought into contact with a fingernail placed on a flat placement surface, the drawing tool is moved according to a pattern, and the pattern is drawn on the nail. ,
The surface of the fingernail includes an edge on one end side in the width direction of the nail, and is provided on the one end side from a center line passing through the center in the width direction of the nail according to the curved shape of the nail. 1 region, a second region provided on the other end side from the center line according to the curved shape of the nail, including an edge on the other end side in the width direction of the nail, the first region, Divided into a third region sandwiched between the second regions,
In the first area and the second area on the surface of the nail, drawing is performed while performing a drawing direction restriction process in which the drawing tool is not moved from a lower side to a higher side from the placement surface of the nail. A printing method of a nail printing apparatus, characterized by:
<Claim 9>
When the pattern has a shape drawn across the first area and the third area, the drawing direction restriction process is performed to move the drawing tool in the third area. In the same way as the movement of the drawing tool in the first area, the pattern is continuously drawn in the first area and the third area,
When the pattern has a shape drawn across the second area and the third area, the drawing direction restriction process is performed to move the drawing tool in the third area. 9. The pattern is continuously drawn in the second area and the third area in the same manner as the movement of the drawing tool in the second area. A printing method for a nail printing apparatus.
<Claim 10>
When the pattern has a painted area, after performing the contour drawing process of drawing the outline by moving the drawing tool along the outline of the painted area, the inner area of the outline is set to the width of the nail. Performing a drawing process of drawing while moving the drawing tool in the direction and the length direction of the nail,
In the contour drawing process and the filling drawing process, when the drawing area is included in the first area or the second area, the drawing direction restriction process is performed in the first area or the second area. A printing method for a nail printing apparatus according to claim 7 or 8.
<Claim 11>
When the filled area includes a shape drawn across the first area and the third area, the drawing direction restriction process is performed to determine how to move the drawing tool in the third area. Controlling the drawing area to be drawn continuously in the first area and the third area in the same manner as the movement of the drawing tool in the first area to be performed,
When the filled area includes a shape drawn across the second area and the third area, the drawing direction restriction process is performed to determine how to move the drawing tool in the third area. 11. The painted area is continuously drawn in the second area and the third area in the same manner as the drawing tool is moved in the second area. The printing method of the nail printing apparatus as described in 2.
<Claim 12>
The first region is surrounded by an edge on the one end side of the nail and a first boundary line provided on the surface of the nail along the length direction of the nail from the center line to the one end side. Area,
The second region includes an edge on the other end side of the nail and a second boundary line provided on the surface of the nail along the length direction of the nail from the center line to the other end side. The printing method of the nail print apparatus according to claim 8, wherein the area is an enclosed area.
<Claim 13>
Furthermore, the inclination angle of the surface of the nail with respect to the placement surface is detected,
The printing method of the nail print apparatus according to claim 12, wherein the first boundary line and the second boundary line are provided at a position where a value in the width direction of the nail of the inclination angle is a predetermined threshold value. .
<Claim 14>
14. The nail print according to claim 13, wherein the drawing direction restriction process is also performed in a region of the nail surface where the value of the inclination angle in the length direction of the nail is equal to or greater than the threshold value. The printing method of the device.
<Claim 15>
A finger placement unit having a planar placement surface on which a finger of a nail to perform drawing is placed;
A drawing tool for drawing a pattern on the nail in contact with the fingernail placed on the placement surface;
A drive unit that moves the drawing tool according to the pattern when performing the drawing;
A control unit for controlling the driving unit;
With
The nail surface includes a first region on one end side in the width direction of the nail, a second region on the other end side in the width direction of the nail, and a third region sandwiched between the first region and the second region. Divided into areas,
The first region includes an edge on the one end side of the nail, and is first specified from a region provided on the one end side from a center line passing through the center in the width direction of the nail according to the curved shape of the nail. It is an area excluding the area,
The second area includes an edge on the other end side of the nail, and is an area obtained by removing a second specific area from an area provided on the other end side from the center line according to a curved shape of the nail. Yes,
The first specific area and the second specific area are a continuous pattern in the pattern, and a specific pattern in which the movement distance of the drawing tool in the width direction of the nail is equal to or less than a predetermined limit value is drawn. Area
In the first area and the second area on the surface of the nail, the control unit does not move the drawing tool from a lower side to a higher side from the placement surface of the nail. Drawing is performed while performing a restriction process, and the drive unit is drawn so that the drawing is restricted without performing the drawing direction restriction process in the drawing of the specific pattern in the first specific area and the second specific area. A nail printing apparatus characterized by controlling.
<Claim 16>
In a printing method of a nail printing apparatus, in which a drawing tool is brought into contact with a fingernail placed on a flat placement surface, the drawing tool is moved according to a pattern, and the pattern is drawn on the nail. ,
A region provided on the one end side of the surface of the fingernail including an edge on one end side in the width direction of the nail and passing through the center in the width direction of the nail according to the curved shape of the nail From the region provided on the other end side from the center line according to the curved shape of the nail, including the first region excluding the first specific region from and the edge on the other end side in the width direction of the nail Divided into two regions excluding the second specific region, and a third region sandwiched between the first region and the second region,
The first specific area and the second specific area are drawn by a specific pattern in which the movement distance in the width direction of the nail of the drawing tool is equal to or less than a predetermined limit value. And the area
In the first area and the second area on the surface of the nail, drawing is performed while performing a drawing direction restriction process in which the drawing tool is not moved from a lower side to a higher side from the placement surface of the nail. A printing method for a nail printing apparatus, wherein the first specific area and the second specific area are drawn in a continuous pattern without performing the drawing direction restriction process.

DESCRIPTION OF SYMBOLS 1 Nail printing apparatus 40 Drawing part 41 Pen 42 Drawing head 43 Pen carriage 46 X direction moving motor 48 Y direction moving motor 49 Head drive part 50 Imaging part 80 Control apparatus 81 Control part 82 Storage part 811 Imaging control part 812 Nail information detection part 812a Inclination angle detection unit 815 Drawing control unit 821 Nail image storage area 822 Nail information storage area 823 Design image storage area T Nail U1 Printing finger

Claims (10)

A drawing tool for drawing on the surface of the nail in contact with the fingernail;
A drive unit for moving the drawing tool;
A control unit for controlling the driving unit;
With
The controller controls the height of the drawing tool when the driving unit moves the drawing tool along the first direction while the drawing tool is in contact with the surface of the nail. Performing a moving direction control for moving the drawing tool along a second direction different from the first direction with respect to the surface of the nail when having a slope rising along the first direction; The two directions are directions in which the height of the drawing tool descends along the second direction when the drawing tool is moved along the second direction in contact with the surface of the nail. A nail printing apparatus characterized by being. The controller is
A surface of the nail, a first region on one end side in the width direction of the nail from a center line in the width direction of the nail;
Divided into a second region on the other end side in the width direction of the nail from the center line, and a third region sandwiched between the first region and the second region,
Control to perform the movement direction control in the first region and the second region,
When the pattern to be drawn on the surface of the nail has a shape drawn across the first region and the third region, how to move the drawing tool in the third region, In the same way as the movement of the drawing tool in the first region, control to draw the picture continuously in the first region and the third region,
When the pattern has a shape drawn across the second region and the third region, the method of moving the drawing tool in the third region is changed in the second region. 2. The nail print apparatus according to claim 1, wherein control is performed so that the pattern is continuously drawn in the second area and the third area in the same manner as the drawing tool is moved. . The controller is
When the pattern to be drawn on the surface of the nail has a filled area, after performing the outline drawing process for drawing the outline by moving the drawing tool along the outline of the filled area, the inner area of the outline Controlling the drive unit to perform a paint drawing process of drawing while moving the drawing tool in the width direction of the nail and the length direction of the nail,
In the contour drawing process and the filling drawing process, when the drawing area is included in the first area or the second area, the moving direction control is performed in the first area or the second area. The nail printing apparatus according to claim 2. The controller is
When the painted area includes a shape drawn across the first area and the third area, the movement of the drawing tool in the third area is changed in the first area. In the same manner as the movement of the drawing tool, control to draw the painted area continuously in the first area and the third area,
When the filled area includes a shape drawn across the second area and the third area, the method of moving the drawing tool in the third area is changed in the second area. 4. The control according to claim 3, wherein the drawing area is continuously drawn in the second area and the third area in the same manner as the drawing tool is moved. 5. Nail printing device. The first region is surrounded by an edge on the one end side of the nail and a first boundary line provided on the surface of the nail along the length direction of the nail from the center line to the one end side. Area,
The second region includes an edge on the other end side of the nail and a second boundary line provided on the surface of the nail along the length direction of the nail from the center line to the other end side. The nail print apparatus according to any one of claims 2 to 4, wherein the nail print apparatus is an enclosed area. In the printing method of the nail printing apparatus,
The nail printing apparatus has a drawing tool for drawing on the surface of the nail in contact with a fingernail,
When the surface of the nail is moved along the first direction by the driving unit while the drawing tool is in contact with the surface of the nail, the height of the drawing tool is along the first direction. Control to perform a moving direction control for moving the drawing tool along a second direction different from the first direction with respect to the surface of the nail,
In the second direction, when the drawing tool is moved along the second direction in contact with the surface of the nail, the height of the drawing tool is lowered along the second direction. A printing method of a nail printing apparatus, characterized in that the direction is a direction. A surface of the nail, a first region on one end side in the width direction of the nail from a center line in the width direction of the nail;
Divided into a second region on the other end side in the width direction of the nail from the center line, and a third region sandwiched between the first region and the second region,
Control to perform the movement direction control in the first region and the second region,
When the pattern to be drawn on the surface of the nail has a shape drawn across the first region and the third region, how to move the drawing tool in the third region, In the same way as the movement of the drawing tool in the first area, the pattern is continuously drawn in the first area and the third area,
When the pattern has a shape drawn across the second region and the third region, the method of moving the drawing tool in the third region is changed in the second region. 7. The printing method for a nail print apparatus according to claim 6, wherein the pattern is continuously drawn in the second area and the third area in the same manner as the drawing tool is moved. When the pattern to be drawn on the surface of the nail has a filled area, after performing the outline drawing process for drawing the outline by moving the drawing tool along the outline of the filled area, the inner area of the outline Performing a drawing process of drawing while moving the drawing tool in the width direction of the nail and the length direction of the nail,
In the contour drawing process and the filling drawing process, when the drawing area is included in the first area or the second area, the moving direction control is performed in the first area or the second area. The printing method of the nail printing apparatus of Claim 7. When the filled area includes a shape drawn across the first area and the third area, the method of moving the drawing tool in the third area is changed in the first area. In the same manner as the movement of the drawing tool, control to continuously draw the painted area in the first area and the third area,
When the filled area includes a shape drawn across the second area and the third area, the method of moving the drawing tool in the third area is changed in the second area. 9. The nail printing apparatus according to claim 8, wherein the painted area is continuously drawn in the second area and the third area in the same manner as the movement of the drawing tool. Printing method. The first region is surrounded by an edge on the one end side of the nail and a first boundary line provided on the surface of the nail along the length direction of the nail from the center line to the one end side. Area,
The second region includes an edge on the other end side of the nail, and a second boundary line provided on the surface of the nail along the length direction of the nail from the center line to the other end side. The printing method of the nail print apparatus according to any one of claims 7 to 9, wherein the area is an enclosed area.