Coating Equipment

Abstract

To provide a coating device that can apply a certain amount of coating material onto a floor surface in a dotted shape.SOLUTION: A coating device 1 according to one aspect of the present invention comprises: a base member 10 that is placed on a floor surface; a coating head 20 having a plurality of coating pins 22 protruding downward; and an operating member 30 that holds the coating head 20, and is disposed ascendable and descendable on the base member 10 and so that the coating pins 22 are energized to be separated from the floor surface in a non-loaded period; a coating material tray 40 that stores coating material; and a tray holding mechanism 50 that holds the coating material tray 40. The tray holding mechanism 50 has: a slide mechanism 51 mounted on the base member 10, and holds the coating material tray 40 to be horizontally movable between a first position just below the coating head 20 and a second position at which the tray does not overlap the coating head 20 in a vertical direction; and an elastic support material 52 interposed between the slide mechanism 51 and the coating material tray 40, and separates the coating material tray 40 from the floor surface in the non-loaded period and is deformed by loads to contact the coating material tray 40 with the floor surface.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a coating device. [Background technology]

[0002] Glossy stone materials such as ceramic tiles, marble, and granite are used as floor materials. However, when such floor materials are used, there is an inconvenience that the floor surface and shoe soles become slippery due to water that adheres to the floor surface and shoe soles during rainy weather or cleaning. Therefore, it has been proposed to apply a transparent paint in a scattered pattern to the floor surface to make it less slippery without compromising the design.

[0003] In order to easily perform such anti-slip coating, it has been proposed to use an applicator that applies paint to the tips of multiple pins and then transfers the paint attached to the tips of the pins to the floor surface by abutting the tips of the pins (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2020 / 032126 Summary of the Invention [Problem to be solved by the invention]

[0005] When coating is performed using the applicator described in Patent Document 1, the applicator may shift sideways at the moment it comes into contact with the floor surface, which may result in inconsistent amount and shape of the paint applied. Since the amount of paint applied to each point is very small, even a very slight shift of the applicator may cause the amount of paint applied to vary greatly, resulting in insufficient anti-slip properties. For this reason, the objective is to provide a coating device that can apply a consistent amount of paint in scattered dots to the floor surface. [Means for solving the problem]

[0006] A coating device according to one embodiment of the present invention is a coating device that applies paint in a scattered manner onto a floor surface, and comprises a base member that is placed on the floor surface, a coating head having a plurality of coating pins protruding downward, an operating member that holds the coating head and is arranged on the base member so that it can be raised and lowered, a paint tray that reserves the paint, and a tray holding mechanism that holds the paint tray, wherein the tray holding mechanism is attached to the base member and holds the paint tray so that it can be moved horizontally between a first position directly below the coating head and a second position that does not overlap with the coating head in the vertical direction.

[0007] In the above-mentioned coating device, the tray holding mechanism may further have an elastic support material interposed between the slide mechanism and the paint tray, which separates the paint tray from the floor surface when there is no load, and which deforms when there is a load to bring the paint tray into contact with the floor surface.

[0008] The above-mentioned coating device may further include a tray pressing mechanism that presses down the paint tray as the operating member is lowered, and the tray pressing mechanism may include a lifting body that rises and falls in sync with the operating member, and a tray pressing member that is arranged on the lifting body and can press down the paint tray by abutting against the paint tray before the coating pin is immersed in the paint reserved in the paint tray when the operating member is lowered, and that enables the coating pin to be immersed in the paint after the paint tray abuts against the floor surface by at least partial elastic deformation.

[0009] In the coating device described above, the tray pressing mechanism may further include a limiting member that determines a minimum distance between the lifting body and the paint tray.

[0010] In the above-mentioned coating device, the lifting body may be arranged so as to be capable of being raised and lowered independently of the operating member and to be biased upward, and the operating member or the tray pressing mechanism may have a fixing member that separably fixes the operating member and the lifting body.

[0011] In the above-described coating device, the operating member may hold the coating head from below so as to be releasable.

[0012] In the above-described coating device, the operating member may further include a head pressing portion that abuts against an upper surface of the coating head when the coating head is spaced a fixed distance from the holding portion.

[0013] In the above-mentioned coating device, the coating pins may be provided so as to be able to individually retract upwardly by a fixed distance.

[0014] The above-mentioned coating device may further include a paint tray for storing the paint, and a tray holding mechanism attached to the base member and having a slide mechanism for holding the paint tray horizontally movable between a first position directly below the coating head and a second position not overlapping with the coating head in the vertical direction.

[0015] In the above-mentioned coating device, the tray holding mechanism may further have an elastic support material interposed between the slide mechanism and the paint tray, which separates the paint tray from the floor surface when there is no load, and which deforms when there is a load to bring the paint tray into contact with the floor surface. Effect of the Invention

[0016] The coating device according to the present invention can apply a consistent amount of paint in scattered dots onto a floor surface. [Brief description of the drawings]

[0017] [Figure 1] 1 is a perspective view of a coating device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a perspective view showing a state during coating of the coating device of FIG. 1. [Diagram 3] FIG. 2 is a schematic cross-sectional view showing, in a simplified form, the structure of the coating device in FIG. [Figure 4] 2 is a flowchart showing a coating procedure using the coating device of FIG. 1. [Diagram 5]2 is a schematic cross-sectional view showing a coating process using the coating device of FIG. 1. [Figure 6] 6 is a schematic cross-sectional view showing a state subsequent to that of FIG. 5 in coating by the coating device of FIG. 1. [Figure 7] 7 is a schematic cross-sectional view showing a state subsequent to that of FIG. 6 in coating by the coating device of FIG. 1. [Figure 8] 8 is a schematic cross-sectional view showing a state subsequent to that of FIG. 7 in coating by the coating device of FIG. 1. [Figure 9] 9 is a schematic cross-sectional view showing a state subsequent to that of FIG. 8 in coating by the coating device of FIG. 1. [Figure 10] 1. FIG. 10 is a schematic cross-sectional view showing a state subsequent to that shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view of a coating device 1 according to one embodiment of the present invention. Fig. 2 is a perspective view showing a state of the coating device 1 during coating. Fig. 3 is a schematic cross-sectional view showing a simplified structure of the coating device 1.

[0019] The coating device 1 is a device that applies a transparent paint in a scattered dot pattern to a floor surface to impart anti-slip properties to a glossy floor surface. The scattered dots applied by the coating device 1 may be arranged in a square lattice pattern with a diameter of about 3 mm, a height of about 200 μm, and a pitch of about 6 mm. The coating device 1 according to this embodiment has a base member 10, a coating head 20, an operating member 30, a paint tray 40, a tray holding mechanism 50, and a tray pressing mechanism 60.

[0020] The base member 10 is placed on a floor surface and holds other components of the coating device 1. The base member 10 is configured to come into contact with a plurality of points outside the area of ​​the floor surface where paint is to be applied, so as to hold other parts of the coating device 1 in a state where they are raised above the floor surface. The portion of the base member 10 that comes into contact with the floor surface may have leg members 11 made of, for example, rubber, to prevent damage to the floor surface and to prevent the base member 10 from shifting.

[0021] The coating head 20 may be configured to have a support plate 21 held horizontally, a plurality of coating pins 22 held by the support plate 21 and protruding downward from the support plate 21, and an anti-slip plate 23 covering the top of the coating pins 22.

[0022] The support plate 21 has a held portion 211 that is held by the operating member 30. The held portion 211 has a cylindrical engagement protrusion 212 with a horizontal axis. By having such a held portion 211, it is possible to easily realize a configuration in which the plate is positioned relative to the operating member 30 by its own weight, as will be described later. The support plate 21 also has a plurality of pin holes 213 that each receive a coating pin 22. The pin holes 213 are formed so as to penetrate the support plate 21 from top to bottom, and have a countersunk portion 214 with a larger diameter on the upper side.

[0023] The coating pins 22 have a large-diameter head 221 at their upper ends, and are inserted into the pin holes 213 from above so that the heads 221 are held in the countersunk portions 214. In other words, the multiple coating pins 22 protrude an equal distance from the support plate 21 due to their own weight, and are provided so that they can be individually retracted a fixed distance upward. In this way, the coating pins 22 are held so that they can be raised and lowered, thereby absorbing unevenness in the floor surface and applying paint evenly. The maximum amount that the coating pins 22 can be retracted can be, for example, 0.5 mm or more and 3 mm or less.

[0024] The coating pin 22 applies paint to the tip and transfers the applied paint to the floor surface. The coating pin 22 may have a paint retention structure, such as an externally threaded uneven surface, at the tip so that a sufficient amount of paint can be retained by surface tension. For example, a pan head screw of about M2.3 as specified in JIS-B1111 (2017) can be used as the coating pin 22 used when applying scattered paint with a diameter of about 3 mm.

[0025] The retaining plate 23 seals the upper ends of the pin holes 213, thereby sealing the heads 221 of the coating pins 22 in the countersunk portions 214. The coating pins 22 are therefore held in a state in which they protrude a certain length or more from the support plate 21. This allows all of the coating pins 22 to be equally immersed in the coating when coating material is applied to the tips of the coating pins 22, as will be described in detail later.

[0026] The operating member 30 has a holding portion 31 that holds the coating head 20 from below so that the coating head 20 can be separated, and a head pressing portion 32 that is arranged on the upper surface of the coating head 20. The operating member 30 is arranged on the base member 10 so that it can be raised and lowered by a linear guide 33, and is biased upward by a main biasing elastic body 34 so that the coating pins 22 are separated from the floor surface and positioned above the paint tray 40 with a gap therebetween when no load is applied. The coating device 1 may also have a locking member 35 that fixes the operating member 30 at the highest position. In this embodiment, the locking member 35 is provided at the upper end of the guide shaft of the linear guide 33, and is configured to be able to engage with the operating member 30 by rotating horizontally.

[0027] The holding portion 31 has a holding groove 311 that is V-shaped when viewed in the axial direction of the engaging protrusion 212, which receives and supports the engaging protrusion 212. By providing such a holding groove 311, the coating head 20 is positioned such that the engaging protrusion 212 is located at the back of the holding groove 311 due to its own weight.

[0028] The operating member 30 holds the coating head 20 from below by the holding portion 31 so that the coating head 20 can be separated, and therefore the coating head 20 can be held in a state where a large stress is not applied to the support plate 21 in particular. Therefore, the support plate 21 is less likely to be distorted, the coating pins 22 are held vertically, the tips of the coating pins 22 are held in the designed position, and the coating pins 22 can move smoothly up and down in the pin holes 213. By placing the coating head 20 on the floor surface in such a state that the support plate 21 is not distorted, the tips of the coating pins 22 are less likely to shift position on the floor surface. Furthermore, when the coating pins 22 abut against the retaining plate 23, the coating head 20 is separated from the holding portion 31. Therefore, even if the operating member 30 is tilted within the range of the mechanism's play when the operating member 30 is further pressed down, the coating head 20 is not caused to slide sideways, and the tips of the coating pins 22 are less likely to shift position on the floor surface. Therefore, the coating device 1 can apply paint in a uniform scattered dot pattern on the floor surface.

[0029] The head push-down portion 32 comes into contact with the upper surface of the coating head 20 with the coating head 20 spaced a fixed distance from the holding portion 31. By pushing down the coating head 20 with the head push-down portion 32, the tips of all the coating pins 22 are evenly immersed in the paint reserved in a paint tray 40, which will be described later, and the paint is evenly applied to the tips of each of the coating pins 22. The distance between the holding portion 31 and the coating head 20 when the engagement projection 212 is positioned at the back of the holding groove 311 can be, for example, 3 mm or more and 10 mm or less. The head push-down portion 32 may be configured so that the distance from the coating head 20 is finely adjustable.

[0030] The main biasing elastic body 34 biases the operating member 30 toward the upper end position of its movable range with a force that enables the user to press down the operating member 30. As such a main biasing elastic body 34, a helical spring is preferably used.

[0031] The paint tray 40 holds paint. The paint tray 40 has a flap portion 41 that protrudes horizontally to the side and a rib-like reinforcing portion 42 that protrudes from the bottom surface. The paint tray 40 holds a sponge-like paint holder 43 that has a certain thickness.

[0032] The flap portion 41 is provided so that the tray pressing mechanism 60 can press the paint tray 40 vertically while holding it horizontally. The reinforcing portion 42 can maintain the flatness of the bottom surface of the paint tray 40 and can abut against the floor surface. The reinforcing portion 42 can be formed of, for example, an L-shaped material or a channel material. The paint holder 43 can be locally recessed by being impregnated with paint and being pressed by the coating pin 22. By having such a paint holder 43, it is possible to prevent paint from accidentally spilling when the coating device 1 moves. In addition, the paint holder 43 can hold the paint surface parallel to the coating head 20 even if the floor surface is not exactly horizontal, making it possible to evenly apply paint to the multiple coating pins 22.

[0033] The tray holding mechanism 50 is attached to the base member 10 and has a slide mechanism 51 that holds the paint tray 40 horizontally movable between a first position (position in FIG. 1) directly below the coating head 20 and a second position (position in FIG. 2) that does not overlap with the coating head 20 in the vertical direction, and an elastic support member 52 that is interposed between the slide mechanism 51 and the paint tray 40 and separates the paint tray 40 from the floor surface when no load is applied and deforms when a load is applied to bring the paint tray 40 into contact with the floor surface. The slide mechanism 51 can be formed of, for example, a pair of slide rails. The distance from the floor surface of the paint tray 40 when no load is applied is, for example, about 3 mm or more and 4 mm or less. This can reliably prevent the paint tray 40 from accidentally coming into contact with the paint applied to the floor surface.

[0034] In order to facilitate the movement of the paint tray 40, the tray holding mechanism 50 may have a connection bar 53 having a handle and connecting the ends of a pair of slide rails constituting the slide mechanism 51, and a rail cover 54 covering the upper part of the slide mechanism 51 and preventing paint from spilling from the paint tray 40 from entering the inside of the slide mechanism 51. In order to prevent the paint tray 40 from interfering with the coating pins 22 during movement, the tray holding mechanism 50 is preferably disposed so as to form a clearance in the height direction of, for example, about 3 mm to 5 mm between the coating pins 22 and the upper ends of the side walls in the front and rear of the movement direction of the paint tray 40 when the operating member 30 is at the highest position.

[0035] In coating device 1, first, with paint tray 40 in a first position, coating head 20 is lowered to apply paint to coating pins 22, and with paint tray 40 in a second position, coating head 20 is lowered to transfer the paint adhering to coating pins 22 to the floor surface. In coating device 1, by moving paint tray 40 with slide mechanism 51, appropriate positioning of paint tray 40 can be ensured when paint is applied to coating pins 22 and when paint adhering to coating pins 22 is transferred to the floor surface, and therefore, paint tray 40 can be prevented from interfering with other components.

[0036] In the coating device 1, the paint tray 40 can be moved smoothly by separating the paint tray 40 from the floor surface using the elastic support member 52 except when paint is being applied to the coating pins 22. In addition, by pressing the paint tray 40 against the floor surface when paint is being applied to the coating pins 22, deflection of the paint tray 40 due to the pressure of the coating pins 22 is prevented, and paint can be applied evenly by the multiple coating pins 22.

[0037] The tray pressing mechanism 60 can press down the paint tray 40 as the operating member 30 descends. The tray pressing mechanism 60 has a lifting body 61 that rises and falls in synchronization with the operating member 30, a secondary biasing elastic body 62 that biases the lifting body 61 upward, a fixing member 63 that separably fixes the operating member 30 and the lifting body 61, a tray pressing member 64 that is disposed on the lifting body 61 and presses down the paint tray 40, and a limiting member 65 that is disposed on the lifting body 61 and determines the minimum distance between the lifting body 61 and the paint tray 40.

[0038] The lifting body 61 is disposed so as to be movable up and down independently of the operating member 30 and to be biased upward by a secondary biasing elastic body 62. The lifting body 61 is connected to the operating member 30 by a fixing member 63 and thereby moves up and down integrally with the operating member 30, but by releasing the connection to the operating member 30 by the fixing member 63, the lifting body 61 is held at its maximum raised position by the secondary biasing elastic body 62 regardless of the position of the operating member 30.

[0039] The tray push-down member 64 moves down together with the operating member 30 and pushes down the paint tray 40 by abutting against the flap portion 41 of the paint tray 40 before the coating pins 22 are immersed in the paint reserved in the paint tray 40. When the operating member 30 is further lowered, the reinforcing portion 42 of the paint tray 40 abuts against the floor surface. The tray push-down member 64 at least partially elastically deforms with the further descent of the operating member 30 and the lifting body 61 after abutting against the paint tray 40, thereby enabling the coating head 20 held by the operating member 30 to be immersed in the coating pins 22 after abutting against the floor surface of the paint tray 40, that is, the coating pins 22 dent the paint retaining body 43 and allow the paint overflowing into the space to adhere to the tip portion.

[0040] The tray pressing member 64 may be formed only from an elastic body, but in this embodiment, the tray pressing member 64 is arranged on the lifting main body 61 so as to be able to protrude and retract in the vertical direction, and is configured to have an abutment member 641 having an action portion at its lower end that abuts against the flap portion 41 of the paint tray 40, and a helical spring 642 that is arranged between the action portion of the abutment member 641 and the lifting main body 61 and urges the abutment member 641 in the protruding direction.

[0041] The limiting member 65 is configured to come into contact with the flap portion 41 of the paint tray when the tray pusher 64 elastically deforms a certain amount. This prevents the lifting body 61 and therefore the operating member 30 from descending, and the maximum amount that the coating pins 22 can be pushed into the paint holder 43 remains constant. Therefore, by pressing down the operating member 30 until the limiting member 65 comes into contact with the paint tray 40, a certain length range of the tips of the multiple coating pins 22 can always be immersed in paint. This allows a certain amount of paint to adhere to the tip of each coating pin 22, so the coating device 1 can transfer a certain amount of paint from the coating pins 22 to the floor surface.

[0042] Next, the procedure for anti-slip coating using the coating device 1 having the above configuration will be described. As shown in Fig. 4, the anti-slip coating includes a step of placing the coating device 1 on the floor surface (step S1: coating device placement step), a step of applying paint to the tips of the coating pins 22 (step S2: paint application step), a step of pulling out the paint tray 40 (step S3: paint tray pull-out step), and a step of transferring the paint on the tips of the coating pins 22 to the floor surface (step S4: paint transfer step).

[0043] In the coating device arrangement step S1, the coating device 1 is arranged so that the coating head 20 is located directly above the area of ​​the floor surface to be coated. At this time, the coating device 1 is in a state in which the lifting body 61 is connected to the operating member 30 by the fixing member 63, and the paint tray 40 is arranged in a first position directly below the coating head 20, as shown in FIG.

[0044] In the paint application process of step S2, the operating member 30 is pressed down. As the operating member 30 descends, first, as shown in Fig. 5, the tray press-down member 64 of the tray press-down mechanism 60 abuts against the upper surface of the flap portion 41 of the paint tray 40. The tray press-down mechanism 60 is adjusted so that the tray press-down member 64 abuts against the flap portion 41 before the coating pin 22 abuts against the paint holder 43.

[0045] When the operating member 30 is subsequently lowered, the elastic support members 52 are elastically deformed, and the paint tray 40 is lowered in conjunction with the operating member 30 and the lifting body 61, and as shown in Fig. 6, at least the reinforcing portion 42 of the paint tray 40 abuts against the floor surface before the coating pins 22 are prevented from descending by the paint holders 43 and abut against the retaining plate 23. Thus, in order to lower the paint tray 40 approximately equally to the operating member 30, the total spring constant of the elastic support members 52 is set to be sufficiently smaller than the total elastic modulus of the tray pressing member 64 (helical springs 642).

[0046] When the operating member 30 is further lowered, the tray pressing member 64 (helical spring 642) is elastically deformed, allowing the lifting body 61 to lower. As a result, the support plate 21 approaches the paint tray 40, but the coating pins 22 are prevented from lowering by the paint holder 43, so that the coating pins 22 are pushed up against the support plate 21, and the upper ends of the coating pins 22 come into contact with the retaining plate 23, as shown in FIG.

[0047] When the operating member 30 is further lowered, the coating pin 22 lifts the retaining plate 23 and the support plate 21, and moves the engaging projection 212, and therefore the entire coating head, upward away from the holding portion 31 of the operating member 30. When the operating member 30 continues to be lowered, the head pressing portion 32 of the operating member 30 comes into contact with the upper surface of the coating head 20, as shown in FIG.

[0048] When the operating member 30 is further lowered, the head depression portion 32 presses down the entire coating head 20, and the tip of the coating pin 22 is pressed into the paint holder 43. Then, as shown in Figure 9, the limiting member 65 abuts against the flap portion 41 of the paint tray 40, preventing the lowering of the lifting body 61 and the operating member 30. As a result, a certain length of the leading end of the coating pin 22 is immersed in the paint reserved by the paint holder 43.

[0049] In this way, by pressing the operating member 30 down to its maximum extent and then raising the operating member 30, the coating head 20 can be lifted above the paint tray 40 with a certain amount of paint adhered to the coating pins 22.

[0050] In the paint tray pulling-out process of step S3, the slide mechanism 51 is operated to pull out the paint tray 40 to a second position where the paint tray 40 does not overlap with the coating head 20, as shown in FIG.

[0051] In the paint transfer process of step S4, the operating member 30 is lowered with the connection to the operating member 30 by the fixing member 63 released. Then, the tip of the coating pin 22 comes into contact with the floor surface, and the coating head 20 moves away from the operating member 30 and is placed on the floor surface by its own weight, as shown in Fig. 10. Furthermore, even if the operating member 30 tilts while being pressed down due to mechanical play or the like, since the coating head 20 is separated from the operating member 30, the coating head 20 will not slide sideways on the floor surface and distort the transferred shape of the paint.

[0052] When the operating member 30 is pressed further down, the head push-down portion 32 comes into contact with the coating head 20, which stops the operating member 30 from descending and prevents the operating member 30 from moving with the head push-down portion 32 in contact with the coating head 20, so the transferred shape of the paint is not disturbed. Therefore, by using the coating device 1, paint can be applied to the floor surface in uniform scattered dots.

[0053] As described above, the coating device 1 of this embodiment comprises a base member 10 placed on a floor surface, a coating head 20 having a plurality of coating pins 22 protruding downward, an operating member 30 which holds the coating head 20 and is arranged so that it can be raised and lowered on the base member 10 and is biased so that the coating pins 22 move away from the floor surface when no load is applied, a paint tray 40 which reserves paint, and a tray holding mechanism 50 which holds the paint tray 40. The tray holding mechanism 50 is attached to the base member 10 and comprises a slide mechanism 51 which holds the paint tray 40 so that it can move horizontally between a first position directly below the coating head 20 and a second position which does not overlap with the coating head 20 in the vertical direction, and an elastic support member 52 which is interposed between the slide mechanism 51 and the paint tray 40 and which moves the paint tray 40 away from the floor surface when no load is applied and deforms when a load is applied to bring the paint tray 40 into contact with the floor surface. This allows paint to be applied to the tips of the multiple coating pins 22 while the coating device 1 is positioned at the location where coating is to be performed. Furthermore, by abutting the paint tray 40 against the floor surface when applying paint to the tips of the coating pins 22, it is possible to prevent distortion of the paint tray 40, allowing paint to be applied evenly to the tips of the multiple coating pins 22. Therefore, the coating device 1 can apply paint to the floor surface in uniform scattered dots.

[0054] The coating device 1 further includes a tray pressing mechanism 60 that presses down the paint tray 40 as the operating member 30 descends, and the tray pressing mechanism 60 has a lifting body 61 that rises and falls synchronously with the operating member 30, and a tray pressing member 64 that is disposed on the lifting body 61 and that can press down the paint tray 40 by abutting against the paint tray 40 before the coating pins 22 are immersed in the paint reserved in the paint tray 40 when the operating member 30 descends, and that enables the coating pins 22 to be immersed in the paint after abutting against the floor surface of the paint tray 40 by at least partial elastic deformation. This allows the paint tray 40 to be reliably supported on the floor surface when paint is applied to the coating pins 22.

[0055] In the coating device 1, the tray pressing mechanism 60 further includes a limiting member 65 that determines the minimum distance between the lifting body 61 and the paint tray, so that the immersion length of the coating pin 22 in the paint can be made the same every time.

[0056] In the coating device 1, the lifting body 61 is arranged so as to be liftable and lowerable independently of the operating member 30 and biased upward, and the tray press-down mechanism 60 has a fixing member 63 that separably fixes the operating member 30 and the lifting body 61. Therefore, the coating device 1 can prevent the tray press-down mechanism 60 from interfering with other components when transferring paint from the coating pin 22 to the floor surface, without excessively increasing the stroke of the operating member 30 and without excessively increasing the size of the entire device in a plan view compared to the size of the coating head 20.

[0057] In the coating device 1, the operating member 30 holds the coating head 20 from below so that it can be separated, and therefore the operating member 30 does not distort the coating head 20 or shift the coating head 20 laterally at the moment the coating pin 22 contacts the floor surface, so that paint can be applied to the floor surface in a uniform scattered pattern.

[0058] As described above, the coating device 1 according to this embodiment is configured to include a base member 10 placed on a floor surface, a coating head 20 having a plurality of coating pins 22 protruding downward, and an operating member 30 having a holding portion 31 that holds the coating head 20 from below so that it can be separated, and which is arranged to be able to rise and fall on the base member 10 and to bias the coating pins 22 away from the floor surface when no load is applied. As a result, the operating member 30 does not distort the coating head 20 or cause the coating head 20 to shift position laterally the moment the coating pins 22 come into contact with the floor surface, so that paint can be applied to the floor surface in uniform scattered dots.

[0059] In the coating device 1, the operating member 30 has a head pressing portion 32 that abuts against the upper surface of the coating head 20 when the coating head 20 is spaced a certain distance from the holding portion, so that paint can be evenly applied to the multiple coating pins 22 by pressing the coating pins 22 against the paint holder 43.

[0060] In the coating device 1, the coating pins 22 are provided so as to be able to individually retreat a fixed distance upward, so that unevenness of the floor surface can be absorbed and the paint can be applied evenly.

[0061] In the coating device 1, the operating member 30 has a head pressing portion 32 that abuts against the upper surface of the coating head 20 when the coating head 20 is spaced a certain distance from the holding portion, so that paint can be evenly applied to the multiple coating pins 22 by pressing the coating pins 22 against the paint holder 43.

[0062] In the coating device 1, the coating pins 22 are provided so as to be able to individually retreat a fixed distance upward, so that unevenness of the floor surface can be absorbed and the paint can be applied evenly.

[0063] Although the coating device according to one embodiment of the present invention has been described above, the configuration and effects of the coating device according to the present invention are not limited to those described above.

[0064] For example, the lifting body may be provided integrally with the operating member. In this case, it is necessary to design the tray pressing mechanism so that it does not interfere with other components or the floor surface when the paint is transferred from the coating pin to the floor surface. Also, a fixing member that connects the operating member and the lifting body may be provided on the operating member side. [Explanation of symbols]

[0065] 1 Coating device 10 Base material 20 Coating head 21 Support plate 211 Holding part 212 Engagement protrusion 213 Pin hole 214 Counterbore 22 Coating pin 221 Head 23 Stopper plate 30 Operation member 31 Holding part 311 Retaining groove 32 Head pressing section 33 Linear guide 34 Main biasing elastic body 40 Paint Tray 41 Flap section 42 Reinforcement 43 Paint holding body 50 Tray retention mechanism 51 Slide mechanism 52 Elastic support material 53 Connection Bar 54 Rail cover 60 Tray pressing mechanism 61 Lifting unit 62 Secondary biasing elastic body 63 Fixing member 64 Tray pressing member 641 Contact member 642 Spiral spring 65 Restriction member

Claims

1. A coating device that applies paint to a floor surface in a scattered manner, A base member placed on the floor surface; a coating head including a support plate that is held horizontally and has a plurality of pin holes, a plurality of coating pins that protrude downward from the support plate and are provided so as to be able to retract upward, and a retaining plate that covers the tops of the coating pins so that the coating pins can be retracted upward by a fixed distance; an operating member including a holding portion for holding the coating head and a head pressing portion for contacting an upper surface of the coating head, the operating member being arranged on the base member so as to be movable up and down; A paint tray for holding the paint; A tray holding mechanism for holding the paint tray; Equipped with The tray holding mechanism is attached to the base member and has a slide mechanism that holds the paint tray horizontally movable between a first position directly below the coating head and a second position that does not overlap with the coating head in the vertical direction.

2. The coating device according to claim 1, wherein the tray holding mechanism further includes an elastic support member interposed between the slide mechanism and the paint tray, which separates the paint tray from the floor surface when the paint tray is not pressed down, and which deforms when the paint tray is pressed down to bring the paint tray into contact with the floor surface.

3. The paint tray may be further provided with a tray depression mechanism that depressions the paint tray as the operating member descends. The tray pressing mechanism includes: A lifting body that moves up and down in synchronization with the operating member; a tray pressing member that is disposed on the lifting body and that, when the operating member is lowered, can press down the paint tray by contacting the paint tray before the coating pin is immersed in the paint reserved in the paint tray, and that allows the coating pin to be immersed in the paint after the paint tray comes into contact with the floor surface by at least partial elastic deformation; The coating device according to claim 1 or 2, further comprising:

4. The coating device according to claim 3 , wherein the tray pressing mechanism further comprises a limiting member that determines a minimum distance between the lifting body and the paint tray.

5. The lifting body is arranged to be liftable and lowerable independently of the operating member and to be biased upward; The coating device according to claim 3 or 4, wherein the operating member or the tray pressing mechanism has a fixing member that separably fixes the operating member and the lifting body.

6. The coating device according to claim 1 , wherein the operating member holds the coating head from below and is movable away from the coating head.

Images