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, which applies coating material onto a floor surface in a dotted shape, comprises: a base member 10 that is placed on the floor surface; a coating head 20 having a plurality of coating pins 22 protruding downward; and an operating member 30 that has a holding part 31 that holds the coating head 20 from below separably, 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.SELECTED DRAWING: Figure 3

Description

Technical Field

[0006] , , ,

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

Background Art

[0002] As floor materials, shiny stones such as ceramic tiles, marble, and granite are used. When using such floor materials, there is a disadvantage that it becomes slippery due to water adhering to the floor surface and the soles of shoes during rainy days or cleaning. Therefore, it has been proposed to apply a transparent paint in a scattered pattern on the floor surface to make it less slippery without reducing the design quality.

[0003] In order to easily perform such anti-slip coating, it has been proposed to use an applicator that transfers the paint adhering to the tips of a plurality of pins to the floor surface by attaching paint to the tips of the plurality of pins and bringing the tips of the plurality of pins into contact with the floor surface (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] When performing coating using the applicator described in Patent Document 1, there is a possibility that the amount and shape of the paint to be applied become uneven because the applicator shifts horizontally at the moment of contacting the floor surface. Since the amount of paint applied to each point is very small, even a very slight shift of the applicator may cause a large variation in the amount of paint applied, resulting in insufficient anti-slip performance. Therefore, an object of the present invention is to provide a coating device capable of applying a constant amount of paint in a scattered pattern on the floor surface.

Means for Solving the Problems

[0006] A coating apparatus according to one aspect of the present invention is a coating apparatus for coating a floor surface in a scattered dot pattern, comprising: a base member placed on the floor surface; a coating head having a plurality of coating pins protruding downward; and an operating member having a holding part that holds the coating head from below so as to be able to separate them, and which is disposed on the base member so as to be able to move up and down.

[0007] In the coating apparatus described above, the operating member may be mounted on the base member so as to be able to move up and down and biased so that the coating pin is separated from the floor surface when no load is applied.

[0008] In the coating apparatus described above, the operating member may further have a head pressing portion that contacts the upper surface of the coating head when the coating head is separated from the holding portion by a certain distance.

[0009] In the coating apparatus described above, the coating pins may be individually provided so that they can be retracted upward by a certain distance.

[0010] The coating apparatus described above may further include a paint tray for holding the paint, and a tray holding mechanism attached to the base member, which has a sliding mechanism for holding the paint tray so that it can move horizontally between a first position directly below the coating head and a second position that does not overlap the coating head in the vertical direction.

[0011] In the coating apparatus described above, the tray holding mechanism may further include an elastic support member interposed between the sliding mechanism and the paint tray, which separates the paint tray from the floor surface when unloaded and deforms under load to bring the paint tray into contact with the floor surface. [Effects of the Invention]

[0012] According to the coating apparatus of the present invention, a certain amount of paint can be applied to the floor surface in a scattered pattern. [Brief explanation of the drawing]

[0013] [Figure 1] This is a perspective view of a coating apparatus according to one embodiment of the present invention. [Figure 2] Figure 1 is a perspective view showing the coating apparatus during the coating process. [Figure 3] This is a schematic cross-sectional view showing a simplified structure of the coating apparatus in Figure 1. [Figure 4] This is a flowchart showing the coating procedure using the coating apparatus shown in Figure 1. [Figure 5] This is a schematic cross-sectional view showing the coating process using the coating apparatus shown in Figure 1. [Figure 6] This is a schematic cross-sectional view showing the next state of coating using the coating apparatus shown in Figure 1, as shown in Figure 5. [Figure 7] This is a schematic cross-sectional view showing the next state of coating using the coating apparatus shown in Figure 1, as shown in Figure 6. [Figure 8] This is a schematic cross-sectional view showing the coating process using the coating apparatus shown in Figure 1, following the next state shown in Figure 7. [Figure 9] This is a schematic cross-sectional view showing the next state of coating using the coating apparatus shown in Figure 1, as shown in Figure 8. [Figure 10] This is a schematic cross-sectional view showing the coating process using the coating apparatus shown in Figure 1, following the next state shown in Figure 9. [Modes for carrying out the invention]

[0014] Embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a perspective view of a coating apparatus 1 according to one embodiment of the present invention. Figure 2 is a perspective view showing the coating apparatus 1 in the coating state. Figure 3 is a schematic cross-sectional view showing a simplified structure of the coating apparatus 1.

[0015] The coating apparatus 1 is a device that applies a transparent paint in a scattered dot pattern to a glossy floor surface in order to impart anti-slip properties to the floor surface. The scattered dots applied by the coating apparatus 1 may be arranged in a square grid pattern, for example, with a diameter of about 3 mm, a height of about 200 μm, and a pitch of about 6 mm. The coating apparatus 1 according to this embodiment includes 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.

[0016] The base member 10 is placed on the floor surface and holds other components of the coating device 1. The base member 10 is configured to be able to contact the floor surface at a plurality of locations outside the area to be coated, and hold other parts of the coating device 1 in a state floating from the floor surface. The portion of the base member 10 that contacts the floor surface may have a leg member 11 formed of, for example, rubber or the like to prevent damage to the floor surface and prevent displacement of the base member 10.

[0017] The coating head 20 may be configured to include 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 a retaining plate 23 covering above the coating pins 22.

[0018] The support plate 21 has a held portion 211 held by the operating member 30. The held portion 211 has an engagement protrusion 212 having a horizontally axis and a cylindrical shape. By having such a held portion 211, a configuration for positioning with respect to the operating member 30 by its own weight can be easily realized as described later. Further, a plurality of pin holes 213 for receiving the coating pins 22 are formed in the support plate 21. The pin holes 213 are formed to penetrate the support plate 21 vertically and have a countersunk portion 214 with a larger diameter on the upper side.

[0019] The coating pin 22 has a head 221 with a larger diameter at the upper end, and is inserted into the pin hole 213 from above so that the head 221 is held in the countersunk portion 214. That is, the plurality of coating pins 22 protrude from the support plate 21 by an equal length due to their own weight, and are provided so as to be individually retractable upward by a certain distance. In this way, by holding the coating pins 22 so that they can move up and down, unevenness of the floor surface can be absorbed and the paint can be evenly applied. The maximum retractable amount of the coating pin 22 can be, for example, 0.5 mm or more and 3 mm or less.

[0020] The coating pin 22 has paint attached to its tip and transfers the attached paint to the floor surface. The coating pin 22 may have a paint-holding structure at its tip, such as an external screw-like groove, so that it can hold a sufficient amount of paint due to surface tension. For example, when coating scattered dots with a diameter of about 3 mm, a pan head screw of about M2.3 as specified in JIS-B1111 (2017) can be used as the coating pin 22.

[0021] The retaining plate 23 seals the upper end of the pin hole 213, thereby sealing the head 221 of the coating pin 22 into the counterbore 214. As a result, the coating pin 22 is held in a state where it protrudes from the support plate 21 by a certain length or more. This allows all coating pins 22 to be equally immersed in the paint when applying paint to the tip of each coating pin 22, as will be explained in more detail later.

[0022] The operating member 30 has a holding portion 31 that holds the coating head 20 from below so that it can be separated, and a head pressing portion 32 that is positioned on the upper surface of the coating head 20. The operating member 30 is mounted 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 when there is no load, the coating pin 22 is separated from the floor surface and positioned at a distance above the paint tray 40. The coating device 1 may also have a locking member 35 that fixes the operating member 30 in its 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 engage with the operating member 30 by rotating horizontally.

[0023] The retaining portion 31 has a V-shaped retaining groove 311 in an axial view of the engaging projection 212 that receives and supports the engaging projection 212. By providing such a retaining groove 311, the coating head 20 is positioned by its own weight so that the engaging projection 212 is located at the back of the retaining groove 311.

[0024] The operating member 30 holds the coating head 20 from below using the holding part 31 so that it can be separated from the coating head 20, thereby holding the coating head 20 in a state where no large stress acts on the support plate 21 in particular. As a result, distortion is less likely to occur in the support plate 21, the coating pins 22 are held vertically, the tips of the coating pins 22 are held in the position as designed, and the coating pins 22 can move smoothly up and down within the pin holes 213. By placing the coating head 20 on the floor surface with no distortion in the support plate 21 in this way, the tips of the coating pins 22 are less likely to shift position on the floor surface. In addition, when the coating pins 22 come into contact with the retaining plate 23, the coating head 20 is separated from the holding part 31, so even if the operating member 30 tilts within the range of play of the mechanism when the operating member 30 is pushed down further, the coating head 20 will not slide sideways, and the tips of the coating pins 22 are less likely to shift position on the floor surface. As a result, the coating device 1 can apply paint to the floor surface in a uniform, scattered dot pattern.

[0025] The head pressing portion 32 contacts the upper surface of the coating head 20 when the coating head 20 is separated from the holding portion 31 by a certain distance. By pressing down on the coating head 20 with the head pressing portion 32, the tips of all coating pins 22 are evenly immersed in the paint reserved in the paint tray 40 (described later), and the paint is evenly applied to the tips of each coating pin 22. The distance between the holding portion 31 and the coating head 20 when the engaging projection 212 is positioned at the back of the holding groove 311 can be, for example, 3 mm to 10 mm. The head pressing portion 32 may also be configured to allow fine adjustment of the distance to the coating head 20.

[0026] The main biasing elastic body 34 biases the operating member 30 toward the upper end of its range of motion with a force that allows the user to push the operating member 30 down. A helical spring is preferably used as such a main biasing elastic body 34.

[0027] The paint tray 40 holds the paint. The paint tray 40 has a flap portion 41 that protrudes horizontally to the side and a rib-shaped reinforcing portion 42 that protrudes from the lower surface. The paint tray 40 holds a sponge-like paint holder 43 having a certain thickness.

[0028] The flap portion 41 is provided to allow the tray pressing mechanism 60 to press the paint tray 40 vertically while holding it horizontally. The reinforcing portion 42 maintains the flatness of the bottom surface of the paint tray 40 and can contact the floor surface. The reinforcing portion 42 may be made of, for example, an L-shaped material or a channel material. The paint retainer 43 can be locally indented when impregnated with paint and pressed by the coating pins 22. Having such a paint retainer 43 prevents paint from accidentally spilling when the coating apparatus 1 is moved. In addition, the paint retainer 43 allows the liquid surface of the paint to be held parallel to the coating head 20 even if the floor surface is not perfectly horizontal, and enables paint to be evenly applied to the multiple coating pins 22.

[0029] The tray holding mechanism 50 is attached to the base member 10 and includes a slide mechanism 51 that holds the paint tray 40 so that it can move horizontally between a first position (position in Figure 1) directly below the coating head 20 and a second position (position in Figure 2) that does not overlap with the coating head 20 in the vertical direction, and an elastic support member 52 interposed between the slide mechanism 51 and the paint tray 40, which separates the paint tray 40 from the floor surface when unloaded and deforms under load to bring the paint tray 40 into contact with the floor surface. The slide mechanism 51 may be composed of, for example, a pair of slide rails. The distance of the paint tray 40 from the floor surface when unloaded is, for example, about 3 mm to 4 mm. This reliably prevents the paint tray 40 from accidentally coming into contact with paint applied to the floor surface.

[0030] The tray holding mechanism 50 may include a connecting bar 53 having a handle that connects the ends of a pair of slide rails constituting the slide mechanism 51, in order to facilitate the movement of the paint tray 40, and a rail cover 54 that covers the top of the slide mechanism 51 and prevents paint from entering the inside of the slide mechanism 51 if it spills from the paint tray 40. Furthermore, to prevent the paint tray 40 from interfering with the coating pins 22 when it is moved, it is preferable that the tray holding mechanism 50 is arranged such that, when the operating member 30 is in its highest position, a clearance of, for example, 3 mm to 5 mm is formed in the height direction between the coating pins 22 and the upper ends of the side walls in the front and rear directions of movement of the paint tray 40.

[0031] The coating apparatus 1 first applies paint to the coating pins 22 by lowering the coating head 20 with the paint tray 40 in a first position, and then transfers the paint attached to the coating pins 22 to the floor surface by lowering the coating head 20 with the paint tray 40 in a second position. In the coating apparatus 1, the paint tray 40 is moved by the sliding mechanism 51, ensuring the appropriate positioning of the paint tray 40 when applying paint to the coating pins 22 and when transferring the paint attached to the coating pins 22 to the floor surface, thereby preventing the paint tray 40 from interfering with other components.

[0032] The coating apparatus 1 allows for smooth movement of the paint tray 40 by using the elastic support material 52 to keep it away from the floor surface except when applying paint to the coating pins 22. Furthermore, when applying paint to the coating pins 22, the paint tray 40 is pressed against the floor surface to prevent bending of the paint tray 40 due to the pressure of the coating pins 22, and to ensure that the paint is applied evenly by multiple coating pins 22.

[0033] The tray pressing mechanism 60 can press the paint tray 40 as the operating member 30 descends. The tray pressing mechanism 60 includes a lifting body 61 that moves up and down in sync with the operating member 30, a secondary biasing elastic body 62 that biases the lifting body 61 upward, a fixing member 63 that detachably fixes the operating member 30 and the lifting body 61, a tray pressing member 64 disposed on the lifting body 61 that presses the paint tray 40, and a limiting member 65 disposed on the lifting body 61 that determines the minimum distance between the lifting body 61 and the paint tray 40.

[0034] The lifting body 61 is capable of moving up and down independently of the operating member 30 and is positioned to be biased upward by a secondary biasing elastic body 62. The lifting body 61 moves up and down together with the operating member 30 by being connected to the operating member 30 by a fixing member 63, but by releasing the connection to the operating member 30 by the fixing member 63, it is held in its maximum upward position by the secondary biasing elastic body 62 regardless of the position of the operating member 30.

[0035] The tray pressing member 64, along with the operating member 30, presses down the paint tray 40 by contacting the flap portion 41 of the paint tray 40 before the coating pins 22 are immersed in the paint held in the paint tray 40. When the operating member 30 is lowered further, the reinforcing portion 42 of the paint tray 40 contacts the floor surface. Furthermore, the tray pressing member 64, at least partially, elastically deforms as the operating member 30 and the lifting body 61 further descend after contacting 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 the paint tray 40 contacts the floor surface, that is, allowing the coating pins 22 to indent the paint holder 43 and allow the paint overflowing into that space to adhere to the tip of the coating pins 22.

[0036] The tray pressing member 64 may be formed solely from an elastic material, but in this embodiment, the tray pressing member 64 is disposed on the lifting body 61 so as to be able to protrude and retract in the vertical direction and has a contact member 641 having an action portion at its lower end that contacts the flap portion 41 of the paint tray 40, and a helical spring 642 disposed between the action portion of the contact member 641 and the lifting body 61, which biases the contact member 641 in the protruding direction.

[0037] The limiting member 65 is configured to contact the flap portion 41 of the paint tray when the tray pressing member 64 is elastically deformed by a certain amount. This prevents the lifting body 61 and, consequently, the operating member 30 from descending, and ensures that the maximum amount the coating pins 22 are pressed into the paint retainer 43 remains constant. Therefore, by pressing the operating member 30 until the limiting member 65 contacts the paint tray 40, a constant length range of the tips of the multiple coating pins 22 can always be immersed in the paint. As a result, a constant amount of paint can be attached to the tip of each coating pin 22, allowing the coating device 1 to transfer a constant amount of paint from the coating pins 22 to the floor surface.

[0038] Next, the procedure for anti-slip coating using the coating apparatus 1 having the above configuration will be explained. As shown in Figure 4, the anti-slip coating procedure includes the steps of: placing the coating apparatus 1 on the floor surface (step S1: coating apparatus placement step); applying paint to the tips of the coating pins 22 (step S2: paint application step); pulling out the paint tray 40 (step S3: paint tray removal step); and transferring the paint from the tips of the coating pins 22 to the floor surface (step S4: paint transfer step).

[0039] In step S1, the coating apparatus placement process, the coating apparatus 1 is positioned so that the coating head 20 is located directly above the area on the floor to be coated. At this time, as shown in Figure 1, the coating apparatus 1 is configured such that the lifting body 61 is connected to the operating member 30 by a fixing member 63, and the paint tray 40 is positioned at the first position directly below the coating head 20.

[0040] 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 Figure 5, the tray pressing member 64 of the tray pressing mechanism 60 comes into contact with the upper surface of the flap portion 41 of the paint tray 40. The tray pressing mechanism 60 is adjusted so that the tray pressing member 64 comes into contact with the flap portion 41 before the coating pins 22 come into contact with the paint retainer 43.

[0041] As the operating member 30 is lowered further, the elastic support member 52 is elastically deformed, causing the paint tray 40 to descend in conjunction with the operating member 30 and the lifting body 61. As shown in Figure 6, the reinforcing portion 42 of the paint tray 40 contacts the floor surface before the painting pins 22 are prevented from descending by the paint retainer 43 and come into contact with the retaining plate 23. In this way, in order to lower the paint tray 40 at approximately the same rate as the operating member 30, the sum of the spring constants of the elastic support member 52 is set to be sufficiently small compared to the sum of the elastic moduli of the tray pressing member 64 (helicopter spring 642).

[0042] Further lowering the operating member 30 causes the tray pressing member 64 (helicopter spring 642) to elastically deform, enabling the lifting body 61 to descend. As a result, the support plate 21 approaches the paint tray 40, but the coating pins 22 are prevented from descending by the paint retainer 43. Therefore, as shown in Figure 7, the coating pins 22 are pushed upward relative to the support plate 21, and the upper end of the coating pins 22 comes into contact with the retaining plate 23.

[0043] As the operating member 30 is lowered further, the coating pin 22 lifts the retaining plate 23 and the support plate 21, separating the engaging projection 212 and, consequently the entire coating head, upward from the holding portion 31 of the operating member 30. As the operating member 30 continues to lower, 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 Figure 8.

[0044] As the operating member 30 is lowered further, the head pressing part 32 pushes down the entire coating head 20, causing the tip of the coating pin 22 to be pushed into the paint retainer 43. Then, as shown in Figure 9, the limiting member 65 comes into contact with the flap portion 41 of the paint tray 40, thus stopping the lowering of the lifting body 61 and the operating member 30. As a result, the prior art portion of the coating pin 22 is immersed in the paint held by the paint retainer 43 for a certain length.

[0045] In this way, by pushing the operating member 30 down to its maximum extent and then raising it, the coating head 20 can be lifted above the paint tray 40 with a certain amount of paint attached to the coating pin 22.

[0046] In step S3, the paint tray pulling process, as shown in Figure 2, the sliding mechanism 51 is operated to pull out the paint tray 40 to a second position where it does not overlap with the coating head 20.

[0047] 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. As a result, the tip of the coating pin 22 contacts the floor surface, and as shown in Figure 10, the coating head 20 separates from the operating member 30 and rests on the floor surface due to its own weight. Furthermore, even if the operating member 30 tilts due to play in the mechanism while being pushed down, the coating head 20 is separated from the operating member 30, so the coating head 20 does not slide sideways on the floor surface and distort the shape of the paint transfer.

[0048] When the operating member 30 is pushed down further, the head pressing portion 32 comes into contact with the coating head 20. This stops the downward movement of the operating member 30, and since the operating member 30 does not move while the head pressing portion 32 is in contact with the coating head 20, the transfer shape of the paint is not disturbed. Therefore, by using the coating device 1, the paint can be applied to the floor surface in a uniform, scattered pattern.

[0049] As described above, the coating apparatus 1 according to this embodiment comprises a base member 10 placed on the floor surface, a coating head 20 having a plurality of coating pins 22 protruding downward, and an operating member 30 having a holding part 31 that holds the coating head 20 from below so that it can be separated, and which is mounted on the base member 10 so that it can move up and down and biases the coating pins 22 to move away from the floor surface when there is no load. As a result, the operating member 30 does not distort the coating head 20 or cause the coating head 20 to shift laterally at the moment the coating pins 22 come into contact with the floor surface, so that paint can be applied to the floor surface in a uniform, scattered dot pattern.

[0050] In the coating apparatus 1, the operating member 30 has a head pressing portion 32 that contacts the upper surface of the coating head 20 when the coating head 20 is separated from the holding portion by a certain distance, so that paint can be evenly applied to multiple coating pins 22 by pressing the coating pins 22 against the paint retainer 43.

[0051] In the coating apparatus 1, the coating pins 22 are individually provided so that they can be retracted upward by a certain distance, thereby absorbing the unevenness of the floor surface and allowing the paint to be applied evenly.

[0052] The coating apparatus 1 further comprises a paint tray 40 for holding paint, and a tray holding mechanism 50 attached to a base member 10, which has a sliding mechanism 51 that 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 that does not overlap the coating head 20 in the vertical direction. As a result, a series of operations can be performed, such as attaching paint to the coating pins 22 and transferring the paint from the coating pins 22 to the floor surface, while the apparatus is placed at the coating site, thereby preventing unintended paint from adhering to the floor surface.

[0053] In the coating apparatus 1, the tray holding mechanism 50 is interposed between the slide mechanism 51 and the paint tray 40 and further includes an elastic support member 52 that separates the paint tray 40 from the floor surface when there is no load, and deforms under load to bring the paint tray 40 into contact with the floor surface. Therefore, when paint is applied to the coating pins 22, the paint tray 40 is supported by the floor surface, which prevents variations in the amount of paint applied to the coating pins 22 that may occur due to the deformation of the paint tray 40 by the pressing force of the coating pins 22.

[0054] The coating apparatus 1 further includes a tray pressing mechanism 60 that presses down the paint tray 40 as the operating member 30 descends. The tray pressing mechanism 60 includes a lifting body 61 that moves up and down in sync with the operating member 30, and a tray pressing member 64 disposed on the lifting body 61 that, when the operating member 30 descends, can press down the paint tray 40 by contacting the paint tray 40 before the coating pins 22 are immersed in the paint held in the paint tray 40, and allows the coating pins 22 to be immersed in the paint after the paint tray 40 contacts the floor surface by at least partial elastic deformation. This ensures that the paint tray 40 is reliably supported on the floor surface when applying paint to the coating pins 22.

[0055] In the coating apparatus 1, the tray pushing 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 pins 22 in the paint can be the same each time.

[0056] In the coating apparatus 1, the lifting body 61 is arranged to be able to move up and down independently of the operating member 30 and biased upward, and the tray pressing mechanism 60 has a fixing member 63 that fixes the operating member 30 and the lifting body 61 so that they can be separated. As a result, the coating apparatus 1 can be designed so that the tray pressing mechanism 60 does not interfere with other components when transferring paint from the coating pins 22 to the floor surface, without making the stroke of the operating member 30 excessively large, and without making the overall size of the apparatus in plan view excessively large relative to the size of the coating head 20.

[0057] Although a coating apparatus according to one embodiment of the present invention has been described above, the configuration and effects of the coating apparatus according to the present invention are not limited to those described above.

[0058] For example, the lifting mechanism may be provided as an integral and inseparable unit with the operating member. In this case, the tray pressing mechanism must be designed so as not to interfere with other components or the floor surface when transferring paint from the coating pin to the floor surface. Alternatively, a fixing member connecting the operating member and the lifting mechanism may be provided on the operating member side. [Explanation of Symbols]

[0059] 1 Coating apparatus 10 Base member 20 coating heads 21 Support plate 211 Holding part 212 Engagement protrusion 213 pin holes 214 Counterbore section 22 Coating pins 221 Head 23 Retaining plate 30 Operating member 31 Holding part 311 Retaining groove 32 Head press-down part 33 Linear Guide 34 Main biasing elastic body 40 paint trays 41 Flap section 42 Reinforcement section 43 Paint holding body 50 Tray holding mechanism 51. Slide mechanism 52 Elastic support material 53 Connection Bar 54 Rail cover 60 Tray Press Mechanism 61 Lifting Unit 62. Sub-biasing elastic body 63 Fixing member 64 Tray pressing member 641 Contact member 642 Helical spring 65 Restricting member

Claims

1. A coating apparatus for applying paint in a scattered pattern to a floor surface, A base member placed on the floor surface, A coating head having a support plate that is held horizontally and has multiple pin holes, multiple coating pins that protrude downward from the support plate and are provided to be retractable upward, and a retaining plate that covers the top of the coating pins so that the coating pins can be retracted upward by a certain distance, An operating member disposed on the base member so as to be able to move up and down, the operating member having a holding portion that holds the coating head from below and separates from the coating head when the coating head is placed on the floor surface by the downward movement, and a head pressing portion that contacts the upper surface of the coating head when the coating head is separated from the holding portion by a certain distance, A coating apparatus equipped with the following features.

2. The coating apparatus according to claim 1, wherein the operating member is arranged to bias upward with a force that can be pushed down by the user so that the coating pin is separated from the floor surface.

3. The coating apparatus according to claim 1 or 2, wherein the support plate has a cylindrical engaging projection with a horizontal axis, and the holding portion has a V-shaped holding groove that receives and supports the engaging projection.

4. A paint tray for holding the aforementioned paint, A tray holding mechanism is attached to the base member and has a sliding mechanism that holds the paint tray so that it can move horizontally between a first position directly below the coating head and a second position that does not overlap the coating head in the vertical direction. A coating apparatus according to any one of claims 1 to 3, further comprising the above.

5. The coating apparatus according to claim 4, wherein the tray holding mechanism further comprises 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 deforms when the paint tray is pressed down to bring the paint tray into contact with the floor surface, and the paint tray is pressed down as the operating member descends.

Images